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cubic-bezier(.14,.86,.22,1)}.global-course-subnav.expanded{max-height:240px;overflow:auto;padding-right:.2rem}.sidebar-new-course-link{border-style:dashed;font-weight:700}.sidebar-new-course-link .sidebar-link-icon{font-size:clamp(.987rem,calc(1.05rem + .231vw),1.176rem);font-weight:700}.global-playground-subnav .global-sidebar-subnav-link{padding:.52rem .64rem;transform:translate(-8px);opacity:0;transition:padding .22s cubic-bezier(.22,1,.36,1),font-size .22s cubic-bezier(.22,1,.36,1),gap .22s cubic-bezier(.22,1,.36,1),border-color .18s ease,background-color .18s ease,color .18s ease,box-shadow .18s ease,transform .25s cubic-bezier(.14,.86,.22,1),opacity .17s ease-out}.global-playground-subnav.expanded .global-sidebar-subnav-link{transform:translate(0);opacity:1}.global-playground-subnav.expanded .global-sidebar-subnav-link:nth-child(1){transition-delay:0ms}.global-playground-subnav.expanded .global-sidebar-subnav-link:nth-child(2){transition-delay:22ms}.global-playground-subnav.expanded .global-sidebar-subnav-link:nth-child(3){transition-delay:40ms}.sidebar-link-icon{width:1.5rem;height:1.5rem;display:inline-flex;align-items:center;justify-content:center;flex-shrink:0}.sidebar-link-icon img,.sidebar-icon-image{width:1.5rem;height:1.5rem;display:block;object-fit:contain}[data-theme=dark] .sidebar-link-icon img:not(.sidebar-flag-image),[data-theme=dark] .sidebar-icon-image{filter:invert(1) brightness(.88)}.global-sidebar-collapse-btn .sidebar-icon-image{width:1.35rem;height:1.35rem}.sidebar-flag-image{width:100%;height:100%;object-fit:cover;border-radius:2px}.sidebar-link-label{min-width:0;display:inline-block;white-space:nowrap;overflow:hidden;text-overflow:ellipsis;max-width:220px;opacity:1;transform:translate(0);transition:max-width .26s cubic-bezier(.22,1,.36,1),opacity .18s ease,transform .22s cubic-bezier(.22,1,.36,1)}.sidebar-due-badge{display:inline-flex;align-items:center;justify-content:center;margin-inline-start:auto;flex:none;width:1.25rem;height:1.25rem;min-width:1.25rem;border-radius:999px;background:var(--accent);color:var(--pill-strong-text);font-size:clamp(.639rem,calc(.68rem + .15vw),.762rem);font-weight:800;line-height:1;font-variant-numeric:tabular-nums;letter-spacing:0}.global-sidebar-collapsed .global-sidebar-title,.global-sidebar-collapsed .global-sidebar-section-label{opacity:0;transform:translate(-6px);max-width:0;max-height:0;margin:0;transition:none}.global-sidebar-collapsed .global-sidebar-section-header{justify-content:center}.global-sidebar-collapsed .global-sidebar-section-action{opacity:0;transform:scale(.86);pointer-events:none;width:0;height:0;padding:0;overflow:hidden;transition:none}.global-sidebar-collapsed .global-sidebar-section-header.global-sidebar-section-header-playground{justify-content:flex-end}.global-sidebar-collapsed .global-sidebar-playground-settings-action{opacity:1;transform:scale(1);pointer-events:auto;width:36px;height:36px;padding:0;overflow:visible;margin-left:auto}.global-sidebar-collapsed .global-sidebar-link,.global-sidebar-collapsed .global-sidebar-subnav-link,.global-sidebar-collapsed .global-playground-link{padding:.58rem .7rem;align-items:center;justify-content:center;gap:0}.global-sidebar-collapsed .global-playground-link{padding:.56rem .7rem}.global-sidebar-collapsed .global-sidebar-subnav-link{position:relative}.global-sidebar-collapsed .global-sidebar-nav-row{grid-template-columns:1fr}.global-sidebar-collapsed .global-sidebar-nav-toggle{display:none}.global-sidebar-collapsed .sidebar-link-label,.global-sidebar-collapsed .global-playground-name{flex:0 0 auto;inline-size:0;opacity:0;transform:none;max-width:0;transition:none}.global-sidebar-collapsed .sidebar-due-badge{position:absolute;top:.22rem;right:.22rem;margin-inline-start:0;width:1rem;height:1rem;min-width:1rem;font-size:clamp(.564rem,calc(.6rem + .132vw),.672rem)}.global-sidebar-collapsed .global-playground-name-wrap{gap:0;justify-content:center}.global-sidebar-collapsed .global-playground-subnav{margin-left:0;padding-left:0;border-left:none}.global-sidebar-collapsed .global-sidebar-footer .btn{padding-left:.52rem;padding-right:.52rem;gap:0}.global-sidebar-collapsed .global-sidebar-support-slot .playground-progress-pill.ask-ai-pill{padding-left:.52rem;padding-right:.52rem;gap:0;justify-content:center}.global-sidebar-collapsed .global-sidebar-support-slot .playground-progress-pill.ask-ai-pill>span{display:none}.global-sidebar-collapsed .language-space-dropdown-wrap>.global-sidebar-link .sidebar-chevron{display:none}.global-sidebar-collapsed .language-space-dropdown-item{justify-content:center;gap:0}.global-sidebar-collapsed .global-sidebar-footer-row{display:grid;grid-template-columns:repeat(2,minmax(0,40px));justify-content:center;justify-items:center;align-items:center;column-gap:.7rem;row-gap:.4rem}.global-sidebar-collapsed .global-sidebar-footer-actions{display:contents}.app-shell-content{min-width:0;overflow:auto}.app-shell-content[data-reader-format-menu-open=true]{overflow:hidden!important;overscroll-behavior:none}.app-shell-content-has-bottom-nav{padding-bottom:0}[data-shell=compact] .app-shell-content{flex:1;min-height:0;overflow:auto;position:relative}.mobile-shell-title-wrap{min-width:0;display:grid;gap:.14rem}.mobile-shell-title-wrap strong{font-size:clamp(.94rem,calc(1rem + .22vw),1.12rem);line-height:1.2;min-width:0;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.mobile-shell-title-wrap-playground{gap:.1rem}.mobile-shell-title-main-row{display:flex;align-items:flex-start;justify-content:space-between;gap:.55rem;min-width:0}.mobile-shell-title-main-row strong{flex:1 1 auto}.mobile-shell-title-kicker{color:var(--muted);font-size:clamp(.677rem,calc(.72rem + .158vw),.806rem);text-transform:uppercase;letter-spacing:.08em}.mobile-shell-playground-link{border:none;background:transparent;padding:0;margin:0;display:block;min-width:0;max-width:100%;text-align:left;color:inherit;cursor:pointer}.mobile-shell-playground-link .mobile-shell-title-kicker{display:block;color:var(--accent);text-transform:none;letter-spacing:.02em;font-size:clamp(.733rem,calc(.78rem + .172vw),.874rem);min-width:0;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.mobile-shell-header-progress{min-width:0;max-width:100%}.mobile-bottom-nav{display:none}[data-shell=compact] .mobile-shell-header{--header-px: max(1rem, env(safe-area-inset-right));--header-pt: .75rem;--header-pb: .75rem;--header-gap: .85rem;flex:0 0 auto;position:sticky;top:0;z-index:40;display:flex;align-items:center;gap:var(--header-gap);padding:calc(var(--header-pt) + env(safe-area-inset-top)) var(--header-px) var(--header-pb) var(--header-px);border-bottom:1px solid var(--panel-border);background:color-mix(in srgb,var(--panel) 92%,var(--bg));-webkit-backdrop-filter:blur(14px);backdrop-filter:blur(14px)}[data-shell=compact] .mobile-shell-header.mobile-shell-header-playground{--header-pt: .65rem;--header-pb: .52rem;--header-gap: .9rem;display:grid;grid-template-columns:auto 1fr auto;align-items:center;gap:var(--header-gap);padding-top:calc(var(--header-pt) + env(safe-area-inset-top));padding-bottom:var(--header-pb);border-bottom:none}[data-shell=compact] .mobile-shell-header.mobile-shell-header-playground .mobile-shell-title-wrap{gap:.05rem;padding-top:0}[data-shell=compact] .mobile-shell-header.mobile-shell-header-playground .mobile-shell-title-wrap strong{line-height:1.08}[data-shell=compact] .mobile-shell-header.mobile-shell-header-playground .mobile-shell-header-progress{align-self:center;margin-top:.18rem}[data-shell=compact] .mobile-shell-header.mobile-shell-header-playground .mobile-shell-header-progress .mascot-progress-ring{--ring-size: 2.52rem;display:grid;place-items:center;width:100%;height:100%;min-width:100%;min-height:100%;aspect-ratio:1 / 1;border-radius:50%;padding:.12rem}[data-shell=compact] .mobile-shell-header.mobile-shell-header-playground .mobile-shell-header-progress .mascot-progress-ring:after{inset:.12rem}[data-shell=compact] .mobile-shell-header.mobile-shell-header-playground .mobile-shell-header-progress .mascot-progress-ring .mascot-avatar-image{object-position:center 40%}[data-shell=compact] .mobile-shell-header.mobile-shell-header-playground .mobile-shell-header-progress .mascot-progress-ring .mascot-avatar{width:100%;height:100%}[data-shell=compact] .mobile-shell-menu-btn{width:44px;height:44px;min-width:44px;border:1px solid var(--panel-border);background:var(--panel);color:var(--text);padding:0;display:inline-flex;align-items:center;justify-content:center}[data-shell=compact] .mobile-shell-menu-btn svg{width:24px;height:24px}html[data-shell=compact][data-vheight=short] .mobile-shell-header{--header-pt: .48rem;--header-pb: .42rem;--header-gap: .65rem}html[data-shell=compact][data-vheight=short] .mobile-shell-menu-btn{width:40px;height:40px;min-width:40px}html[data-vheight=short] .page-shell{margin-top:1.15rem;margin-bottom:2.2rem;gap:1rem}[data-shell=compact] .two-col{grid-template-columns:1fr}[data-viewport=tablet][data-shell=expanded] .global-sidebar{width:220px}[data-viewport=tablet][data-shell=expanded] .global-sidebar-collapsed{width:112px}.mobile-bottom-nav-item{display:inline-flex;flex-direction:column;align-items:center;justify-content:center;gap:.25rem;color:var(--muted);background:transparent;border:none;padding:.45rem .3rem;font:inherit;font-size:clamp(.677rem,calc(.72rem + .158vw),.806rem);font-weight:700}.mobile-bottom-nav-item.active{color:var(--text)}.mobile-bottom-nav-item.disabled{pointer-events:none;opacity:.45}.mobile-bottom-nav-item .sidebar-icon-image{width:18px;height:18px}.mobile-panel-trigger{white-space:nowrap}@media(prefers-reduced-motion:reduce){.global-sidebar,.global-sidebar-title,.global-sidebar-section-label,.global-sidebar-section-action,.global-sidebar-link,.global-sidebar-subnav-link,.global-playground-link,.global-playground-name,.sidebar-link-label{transition:none!important}}.app-content-shell{width:min(1240px,95%)}.app-shell-content{transition:opacity 80ms ease 20ms}.app-shell-content--transitioning{opacity:.55;pointer-events:none}.status-pill{border:1px solid var(--panel-border);background:var(--bg-soft);padding:.18rem .45rem;font-size:clamp(.705rem,calc(.75rem + .165vw),.84rem);font-weight:600}.status-unlocked{border-color:color-mix(in srgb,var(--success) 60%,transparent);background:color-mix(in srgb,var(--success) 24%,transparent)}.status-locked{opacity:.7}.status-archived{border-color:color-mix(in srgb,var(--panel-border) 88%,transparent);background:color-mix(in srgb,var(--bg-soft) 82%,var(--panel));color:var(--muted)}.tutor-shell{display:flex;flex-direction:column;gap:.6rem}.topbar{display:flex;justify-content:space-between;align-items:center;padding-bottom:1rem;border-bottom:2px solid var(--text)}.archive-collapse{display:grid;overflow:hidden;transform-origin:top;transition:grid-template-rows .28s cubic-bezier(.22,1,.36,1),opacity .22s ease,margin-top .28s cubic-bezier(.22,1,.36,1)}.archive-collapse>*{min-height:0}.archive-collapse.collapsed{grid-template-rows:0fr;opacity:0;margin-top:0;pointer-events:none}.archive-collapse.expanded{grid-template-rows:1fr;opacity:1;margin-top:.1rem}.playgrounds-archive-section{margin-top:.9rem;display:flex;flex-direction:column;gap:.75rem}.eyebrow{font-family:DM Mono,monospace;font-size:clamp(.677rem,calc(.72rem + .158vw),.806rem);text-transform:uppercase;letter-spacing:.15em;color:var(--accent);margin-bottom:.25rem}.eyebrow.reader{font-family:DM Mono,monospace;font-size:clamp(.846rem,calc(.9rem + .198vw),1.008rem);text-transform:uppercase;letter-spacing:.15em;color:var(--accent);margin-bottom:.25rem}.muted{color:var(--muted);font-size:clamp(.893rem,calc(.95rem + .209vw),1.064rem)}.muted-newchat{color:var(--muted);font-size:clamp(1.504rem,calc(1.6rem + .352vw),1.792rem)}.truncated{overflow:hidden;text-overflow:ellipsis;white-space:nowrap;font-size:clamp(.846rem,calc(.9rem + .198vw),1.008rem)}.grid{display:grid;gap:1.5rem}.two-col{grid-template-columns:repeat(auto-fit,minmax(380px,1fr))}.panel{border-radius:var(--radius-ui);padding:1.5rem;display:flex;flex-direction:column;gap:1.25rem;min-width:0;max-width:100%}.stack{display:flex;flex-direction:column;gap:.6rem;min-width:0}.document-row{width:100%;border:1px solid var(--panel-border);background:none;border-radius:var(--radius-ui);color:var(--text);padding:.9rem 1.1rem;text-align:left;display:flex;justify-content:space-between;align-items:center;gap:1rem;cursor:pointer;transition:border-color .18s ease,background-color .18s ease,box-shadow .18s ease;min-width:0}.document-row strong{white-space:nowrap;overflow:hidden;text-overflow:ellipsis;min-width:0;flex:1}.document-row .eyebrow{flex-shrink:0}.document-row:hover,.document-row.active{border-color:var(--accent);background-color:var(--bg-soft)}.document-row.active{outline:2px solid color-mix(in srgb,var(--accent) 50%,transparent);outline-offset:0}.mascot-progress-trigger{cursor:pointer;transition:transform .18s ease}.mascot-progress-trigger:hover{transform:none}.mascot-progress-trigger:active{transform:translateY(0)}.mascot-progress-trigger:focus-visible{outline:none;outline-offset:0;border-radius:999px}.mascot-progress-ring{--ring-size: 3.3rem;position:relative;box-sizing:border-box;width:var(--ring-size);height:var(--ring-size);padding:.2rem;border-radius:999px;display:inline-flex;align-items:center;justify-content:center;background:conic-gradient(from 0deg,color-mix(in srgb,var(--success) 90%,white) 0 var(--xp-fill, 0%),color-mix(in srgb,var(--panel-border) 48%,transparent) var(--xp-fill, 0%) 100%);box-shadow:0 0 0 1px color-mix(in srgb,var(--accent) 100%,transparent);transition:background .35s cubic-bezier(.22,1,.36,1),box-shadow .2s ease}.mascot-progress-ring:after{display:none}.mascot-progress-avatar{position:relative;z-index:1;width:100%;height:100%}.mascot-progress-ring .mascot-avatar-image{animation-duration:3.05s}.mascot-level-badge{position:absolute;right:-.001rem;bottom:-.02rem;z-index:2;min-width:1.16rem;height:1.16rem;padding:0 .24rem;border-radius:var(--radius-ui);display:inline-flex;align-items:center;justify-content:center;background:linear-gradient(180deg,color-mix(in srgb,var(--accent) 94%,white) 0%,var(--accent) 100%);color:#fff;border:1px solid color-mix(in srgb,var(--accent) 62%,black);box-shadow:0 8px 14px -12px #0f172a99;clip-path:polygon(50% 0%,92% 12%,100% 46%,50% 100%,0 46%,8% 12%)}.mascot-level-badge span{font-size:clamp(.677rem,calc(.72rem + .158vw),.806rem);line-height:1;font-weight:800;letter-spacing:.02em;transform:translateY(-1px)}.mascot-xp-popover{position:fixed;z-index:2200;box-sizing:border-box;display:grid;gap:.48rem;min-width:188px;max-width:min(224px,calc(100vw - 1.5rem));padding:.72rem .8rem .78rem;border:1px solid var(--panel-border);background:linear-gradient(180deg,color-mix(in srgb,var(--panel) 98%,var(--bg)),color-mix(in srgb,var(--panel) 92%,var(--bg-soft)));color:var(--text);border-radius:var(--radius-ui);box-shadow:0 14px 32px -18px #0f172a80;pointer-events:none;animation:avatarXpPopoverIn .16s cubic-bezier(.22,1,.36,1) forwards}.mascot-xp-popover.placement-top{transform-origin:bottom center}.mascot-xp-popover.placement-bottom{transform-origin:top center}@keyframes avatarXpPopoverIn{0%{opacity:0;transform:translateY(6px) scale(.96)}to{opacity:1;transform:translateY(0) scale(1)}}.mascot-xp-popover-heading{display:flex;align-items:baseline;gap:.42rem;min-width:0;color:var(--text);font-size:clamp(.827rem,calc(.88rem + .194vw),.986rem);line-height:1.1;font-weight:700}.mascot-xp-popover-eyebrow{min-width:0;color:inherit;font-size:inherit;font-weight:800}.mascot-xp-popover-xp{font-size:clamp(1.147rem,calc(1.22rem + .268vw),1.366rem);line-height:1.08;font-weight:800}.mascot-xp-popover-meta{color:color-mix(in srgb,var(--muted) 88%,var(--text));font-size:inherit;line-height:inherit;font-weight:600}.mascot-xp-popover-separator{color:color-mix(in srgb,var(--muted) 70%,var(--text));font-size:clamp(.799em,calc(.85em + .187vw),.952em);line-height:1;transform:translateY(-.02em)}.mascot-avatar{position:relative;width:3.04rem;height:3.04rem;display:inline-flex;align-items:center;justify-content:center;overflow:hidden}.mascot-avatar-image{width:90%;height:90%;object-fit:cover;object-position:center}.tab{background:var(--theme-tab-bg, transparent);border:none;border-bottom:var(--theme-tab-border-bottom-width, 3px) solid var(--theme-tab-border-color, transparent);box-shadow:var(--theme-tab-shadow, none);color:var(--muted);padding:.6rem 1.25rem;font-family:DM Sans,sans-serif;font-weight:600;font-size:clamp(.893rem,calc(.95rem + .209vw),1.064rem);cursor:pointer;transition:color .15s,border-color .15s;margin-bottom:-2px}.tab:hover{color:var(--text)}.tab-active{color:var(--text);border-bottom-color:var(--theme-tab-active-border-color, var(--accent));background:var(--theme-tab-active-bg, transparent);box-shadow:var(--theme-tab-active-shadow, none)}.tab-disabled{cursor:not-allowed;pointer-events:none;opacity:.5;color:var(--muted)}.app-range{--range-progress: 0%;--range-track-height: .5rem;--range-thumb-size: 1.18rem;--range-track-border: color-mix(in srgb, var(--panel-border) 85%, var(--bg-soft));--range-track-border-width: 0px;--range-track-fill: var(--accent);--range-track-rest: color-mix(in srgb, var(--panel-border) 72%, var(--panel));--range-thumb-color: var(--accent);--range-thumb-border-width: 0px;width:100%;height:var(--range-thumb-size);margin:0;padding:0;border:0;border-radius:999px;background:transparent;box-shadow:none;cursor:pointer;-webkit-appearance:none;appearance:none}.app-range:focus{outline:none}.app-range:disabled{--range-track-fill: color-mix(in srgb, var(--accent) 35%, var(--panel-border));--range-thumb-color: color-mix(in srgb, var(--accent) 40%, var(--panel-border));--range-track-rest: color-mix(in srgb, var(--panel-border) 82%, var(--panel));cursor:not-allowed}.app-range::-webkit-slider-runnable-track{height:var(--range-track-height);border:var(--range-track-border-width) solid var(--range-track-border);border-radius:999px;background:linear-gradient(90deg,var(--range-track-fill) 0%,var(--range-track-fill) var(--range-progress),var(--range-track-rest) var(--range-progress),var(--range-track-rest) 100%)}.app-range::-webkit-slider-thumb{width:var(--range-thumb-size);height:var(--range-thumb-size);margin-top:calc((var(--range-track-height) - var(--range-thumb-size)) / 2);border:var(--range-thumb-border-width) solid color-mix(in srgb,var(--panel-border) 42%,var(--range-thumb-color));border-radius:999px;background:var(--range-thumb-color);box-shadow:0 1px 2px color-mix(in srgb,var(--panel) 65%,transparent);-webkit-appearance:none;appearance:none}.app-range:focus-visible::-webkit-slider-thumb{box-shadow:0 1px 2px color-mix(in srgb,var(--panel) 65%,transparent)}.app-range::-moz-range-track{height:var(--range-track-height);border:var(--range-track-border-width) solid var(--range-track-border);border-radius:999px;background:linear-gradient(90deg,var(--range-track-fill) 0%,var(--range-track-fill) var(--range-progress),var(--range-track-rest) var(--range-progress),var(--range-track-rest) 100%)}.app-range::-moz-range-progress{height:var(--range-track-height);border:0;border-radius:999px;background:transparent}.app-range::-moz-range-thumb{width:var(--range-thumb-size);height:var(--range-thumb-size);border:var(--range-thumb-border-width) solid color-mix(in srgb,var(--panel-border) 42%,var(--range-thumb-color));border-radius:999px;background:var(--range-thumb-color);box-shadow:0 1px 2px color-mix(in srgb,var(--panel) 65%,transparent)}.app-range:focus-visible::-moz-range-thumb{box-shadow:0 1px 2px color-mix(in srgb,var(--panel) 65%,transparent)}.app-range::-moz-focus-outer{border:0}.form{display:flex;flex-direction:column;gap:1rem}label,.field-label{display:flex;flex-direction:column;gap:.4rem;font-family:DM Sans,sans-serif;font-weight:600;font-size:clamp(.846rem,calc(.9rem + .198vw),1.008rem);color:var(--muted)}.field-label-row{display:flex;align-items:center;justify-content:space-between;gap:.5rem;flex-wrap:wrap}.field-label-main{display:inline-flex;align-items:center;gap:.35rem}.field-label-note{font-weight:400;font-size:clamp(.733rem,calc(.78rem + .172vw),.874rem)}.cefr-info-tooltip{position:relative;display:inline-flex;align-items:center}.cefr-info-tooltip-trigger{width:18px;height:18px;border-radius:999px;border:1px solid color-mix(in srgb,var(--panel-border) 76%,var(--accent));background:color-mix(in srgb,var(--panel) 86%,var(--bg-soft) 14%);color:var(--accent);display:inline-flex;align-items:center;justify-content:center;cursor:help;padding:0;line-height:1}.cefr-info-tooltip-trigger:hover,.cefr-info-tooltip:focus-within .cefr-info-tooltip-trigger{border-color:var(--panel-border);background:var(--panel)}.cefr-info-tooltip-trigger:focus-visible{outline:none;box-shadow:none}.cefr-info-tooltip-content{position:absolute;left:calc(50% + 24px);top:calc(100% + 8px);transform:translate(-50%) translateY(4px);width:min(320px,78vw);border:1px solid color-mix(in srgb,var(--accent) 28%,var(--panel-border));background:color-mix(in srgb,var(--panel) 97%,var(--bg-soft) 3%);color:var(--text);font-size:clamp(.714rem,calc(.76rem + .167vw),.851rem);font-weight:500;line-height:1.4;padding:.6rem .7rem;box-shadow:0 10px 24px #0003;z-index:220;pointer-events:none;opacity:0;transition:opacity .14s ease,transform .14s ease}.cefr-info-tooltip-content strong{display:block;margin-bottom:.28rem;color:var(--accent)}.cefr-info-tooltip-content span{display:block}.cefr-info-tooltip-content span+span{margin-top:.28rem}.cefr-info-tooltip:hover .cefr-info-tooltip-content,.cefr-info-tooltip:focus-within .cefr-info-tooltip-content{opacity:1;transform:translate(-50%) translateY(0)}input:not([type=range]),select,textarea{border-radius:var(--radius-ui);border:var(--theme-input-border-width, 1px) solid var(--theme-input-border-color, 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.15s;font-size:clamp(1.128rem,calc(1.2rem + .264vw),1.344rem)}.matching-item:hover{border-color:var(--text)}.matching-item.active{border-color:var(--accent);background:var(--bg-soft)}.matching-item.matched{border-color:var(--success);opacity:.5;cursor:default}@keyframes fadeIn{0%{opacity:0}to{opacity:1}}@keyframes fadeOut{0%{opacity:1}to{opacity:0}}@keyframes modalScaleIn{0%{opacity:0;transform:translateY(12px) scale(.96)}to{opacity:1;transform:translateY(0) scale(1)}}@keyframes modalScaleOut{0%{opacity:1;transform:translateY(0) scale(1)}to{opacity:0;transform:translateY(10px) scale(.97)}}@keyframes mobileDrawerSlideIn{0%{opacity:0;transform:translate(-28px)}to{opacity:1;transform:translate(0)}}@keyframes mobileDrawerSlideOut{0%{opacity:1;transform:translate(0)}to{opacity:0;transform:translate(-28px)}}.modal-backdrop{position:fixed;inset:0;background:#00000080;display:grid;place-items:center;z-index:3000;padding:1rem;pointer-events:auto}.modal-backdrop[data-state=open]{animation:fadeIn 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.1s}.popup-select-item-main-row{display:flex;align-items:center;justify-content:space-between;gap:.5rem}.popup-select-item-label-row{display:flex;align-items:center;gap:.5rem;min-width:0;flex:1}.popup-select-option-icon{width:1rem;height:1rem;object-fit:cover;border-radius:2px;flex-shrink:0}.popup-select-item:hover{background:var(--bg-soft)}.popup-select-item.selected{background:var(--bg-soft);color:var(--text);font-weight:600;box-shadow:inset 0 0 0 2px var(--accent)}.popup-select-search{position:sticky;top:0;z-index:1;padding:.25rem .25rem .45rem;background:var(--panel)}.popup-select-search-input{width:100%;border:1px solid var(--panel-border);background:var(--bg);color:var(--text);padding:.65rem .75rem;border-radius:calc(var(--radius-ui) - 2px);font:inherit;font-size:clamp(.799rem,calc(.85rem + 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svg{width:2.2rem;height:2.2rem;flex-shrink:0;display:block}.reader-pronunciation-actions{position:relative;display:inline-flex;align-items:center;gap:.35rem;overflow:visible}.reader-pronunciation-regenerate-slot{position:relative;width:40px;height:40px;flex:0 0 40px}.reader-pronunciation-toggle.active,.reader-pronunciation-toggle[aria-pressed=true]{color:var(--accent);border-color:var(--accent);background:color-mix(in srgb,var(--accent) 16%,var(--panel));box-shadow:none}.reader-pronunciation-regenerate{position:absolute;inset:0;z-index:2}.text-viewer{padding:1.5rem;max-height:none;min-height:0;flex:1;overflow:auto;background:var(--bg);font-size:clamp(.987rem,calc(1.05rem + .231vw),1.176rem);line-height:1.85;color:var(--text)}.text-viewer.text-viewer-paged{overflow:hidden;overflow-y:hidden;overscroll-behavior-y:none;touch-action:pan-x pinch-zoom}.text-viewer.text-viewer-paged.reader-pronunciation-view{overflow:hidden;overflow-y:hidden;overscroll-behavior-y:none;touch-action:pan-x 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var(--reader-inline-ruby-interline-gap, .16em));padding-bottom:var(--reader-inline-ruby-bottom-clearance, .9em);text-align:start!important;text-align-last:auto!important;text-justify:auto!important;widows:1;orphans:1;line-break:loose}.text-viewer.text-viewer-paged.reader-pronunciation-dual-line-view .reader-pron-ruby-line{display:inline;white-space:pre-wrap}.text-viewer.text-viewer-paged.reader-pronunciation-dual-line-view .reader-pron-ruby-unit{ruby-position:under;ruby-align:center;white-space:pre-wrap;break-inside:avoid;page-break-inside:avoid;margin:0}.text-viewer.text-viewer-paged.reader-pronunciation-dual-line-view .reader-pron-ruby-unit.reader-pron-ruby-unit-word-end{margin-inline-end:.45em}.text-viewer.text-viewer-paged.reader-pronunciation-dual-line-view .reader-pron-ruby-unit.reader-pron-ruby-unit-pron-gap .reader-pron-ruby-text{padding-inline-end:.34em}.text-viewer.text-viewer-paged.reader-pronunciation-dual-line-view .reader-pron-ruby-unit.reader-pron-ruby-unit-start-align{ruby-align:center;ruby-overhang:none}.reader-pron-ruby-base{display:inline-block;line-height:inherit;vertical-align:baseline;white-space:inherit}.text-viewer.text-viewer-paged.reader-pronunciation-dual-line-view .reader-pron-ruby-base .token-highlight{display:inline;line-height:inherit;vertical-align:baseline;transition:none;background-color:transparent!important}.text-viewer.text-viewer-paged.reader-pronunciation-dual-line-view .reader-pron-ruby-base .token-highlight:hover{background-color:transparent!important}.text-viewer.text-viewer-paged.reader-pronunciation-dual-line-view .reader-pron-ruby-base .token-highlight.token-highlight-pinned{background-color:var(--reader-accent-highlight-bg)!important;border-radius:var(--radius-ui)}.text-viewer.text-viewer-paged.reader-pronunciation-dual-line-view .reader-pron-ruby-base .token-highlight.token-highlight-pinned:hover{background-color:var(--reader-accent-highlight-bg-hover)!important}.text-viewer.text-viewer-paged.reader-pronunciation-dual-line-view .reader-pron-ruby-text{font-size:var(--reader-inline-ruby-font-size, .95em);padding-top:0;color:var(--muted);line-height:1.2;white-space:nowrap;word-break:keep-all;overflow-wrap:normal;pointer-events:none;-webkit-user-select:none;user-select:none}.text-viewer.text-viewer-paged.reader-pronunciation-dual-line-view .reader-pron-ruby-text-inner{display:inline-block;transform:translate(var(--reader-inline-ruby-offset-x, 0em),var(--reader-inline-ruby-base-gap, .5em))}.reader-action-btn-compact{display:inline-flex;align-items:center;justify-content:center;min-height:40px}.reader-action-btn-icon-only{width:40px;height:40px;padding:0!important}.reader-header-main-row{align-items:center;gap:.6rem}.reader-header-main-row .playground-header-title{min-width:0}.reader-header-close-btn{margin-left:auto;flex-shrink:0;margin-top:-1.5rem;border:none}.reader-header-controls-wrap{display:contents}.reader-header-controls-wrap.reader-header-controls-wrap-expanded{display:flex;align-items:center;justify-content:space-between;gap:1.5rem;width:100%;margin:0}.reader-header-controls-wrap-expanded .playground-header-group.reader-header-pagination-group,.reader-header-controls-wrap-expanded .playground-header-group.reader-header-actions-group{flex:0 0 auto}.reader-header-controls-wrap-expanded .playground-header-group.reader-header-pagination-group{justify-content:flex-start}.reader-header-controls-wrap-expanded .playground-header-group.reader-header-actions-group{justify-content:flex-start;gap:0;margin-left:0;margin-right:5rem}.reader-header-controls-wrap-expanded .playground-header-group.reader-header-pagination-group .playground-header-info{display:inline-flex;align-items:center;justify-content:center;min-width:5.5ch;text-align:center;font-variant-numeric:tabular-nums;font-feature-settings:"tnum" 1}.reader-action-block{display:inline-flex;align-items:center;gap:.45rem}.reader-header-actions-group .reader-action-block+.reader-action-block{margin-left:2rem}.reader-header-actions-group .reader-action-block-pronunciation{order:10}.reader-header-actions-group .reader-action-block-highlighter{order:20}.reader-header-actions-group .reader-action-block-editing{order:30}.reader-header-actions-group .reader-action-block-save{order:9;margin-right:16.5rem}.reader-mobile-toolbar-actions .reader-action-block-save{order:9;margin-right:1.25rem}.reader-mobile-toolbar-actions .reader-action-block-pronunciation{order:10;margin-left:0}.reader-mobile-toolbar-actions .reader-action-block-editing{order:30}.reader-format-menu-shell{position:relative}.reader-format-trigger{border-radius:var(--radius-ui)}.reader-format-trigger.open{border-color:var(--text);background:var(--bg-soft)}.reader-format-trigger-label{font-family:DM Sans,sans-serif;font-weight:700;letter-spacing:.015em}.reader-format-menu{position:absolute;top:calc(100% + .45rem);right:0;width:min(260px,72vw);border:1px solid var(--panel-border);border-radius:var(--radius-ui);background:var(--panel);box-shadow:0 16px 36px -28px #00000094;padding:.75rem;display:flex;flex-direction:column;gap:.72rem;z-index:150}[data-shell=compact] .reader-format-menu{opacity:0;transform:translateY(6px) scale(.98);transform-origin:bottom right;transition:opacity .18s ease,transform .18s ease;pointer-events:none}[data-shell=compact] .reader-format-menu[data-state=open]{opacity:1;transform:translateY(0) scale(1);pointer-events:auto}[data-shell=compact] .reader-format-menu[data-state=closed]{opacity:0;transform:translateY(6px) scale(.98);pointer-events:none}.reader-format-field{display:flex;flex-direction:column;gap:.45rem}.reader-format-label{font-size:clamp(.714rem,calc(.76rem + .167vw),.851rem);text-transform:uppercase;letter-spacing:.08em;color:var(--muted)}.reader-format-field-head{display:flex;align-items:center;justify-content:space-between;gap:.5rem}.reader-format-value{font-family:DM Mono,monospace;font-size:clamp(.696rem,calc(.74rem + .163vw),.829rem);color:var(--text)}.reader-format-select{border:1px solid var(--panel-border);border-radius:var(--radius-ui);padding:.42rem .55rem;background:var(--bg);color:var(--text);font:inherit}.reader-format-slider{width:100%}.reader-format-reset{min-height:auto;align-self:flex-end;padding:.35rem .7rem;font-size:clamp(.714rem,calc(.76rem + .167vw),.851rem)}.reader-highlighter-controls{display:inline-flex;align-items:center;gap:.42rem}.reader-highlighter-toggle.active{border-color:var(--accent);background:color-mix(in srgb,var(--accent) 16%,var(--panel));color:color-mix(in srgb,var(--accent) 78%,var(--text))}.reader-icon-flash{position:relative}.reader-icon-flash:after{content:attr(data-flash-info);position:absolute;left:50%;top:calc(100% + 8px);transform:translate(-50%) translateY(-2px);border:1px solid var(--panel-border);background:color-mix(in srgb,var(--panel) 92%,var(--bg-soft) 8%);color:var(--text);border-radius:var(--radius-ui);padding:5px 8px;font-size:clamp(.667rem,calc(.71rem + .156vw),.795rem);font-weight:600;line-height:1;white-space:nowrap;box-shadow:0 8px 20px #0000002e;pointer-events:none;opacity:0;z-index:40;transition:opacity .12s ease,transform .12s ease}.reader-icon-flash:hover:after{opacity:1;transform:translate(-50%) translateY(0)}@keyframes readerIconFlashPop{0%{opacity:0;transform:translate(-50%) 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.text-viewer-content{text-align:end;text-align-last:auto;text-justify:auto}.reader-pronunciation-page{display:block;white-space:pre-wrap;word-break:normal;overflow-wrap:normal;-webkit-hyphens:none;hyphens:none;text-rendering:optimizeLegibility;font-kerning:normal;font-feature-settings:"kern" 1,"mark" 1,"mkmk" 1}.token-highlight{background-color:transparent!important;border:none;text-decoration:none;color:inherit;cursor:pointer;padding:0;margin:0;border-radius:var(--radius-ui);line-height:inherit;font:inherit;transition:background-color .15s}.token-highlight:hover{background-color:#0000000d!important}.token-highlight.token-highlight-pinned{background-color:var(--reader-accent-highlight-bg)!important;border-radius:var(--radius-ui)}.token-highlight.token-highlight-pinned:hover{background-color:var(--reader-accent-highlight-bg-hover)!important}.token-highlight.token-highlight-static{cursor:text}@keyframes readerAnnotationButtonFlash{0%{opacity:0;transform:translateY(6px) 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.163vw),.829rem);color:#ef4444}.modal.modal-reading-context-window{max-width:528px}.reading-save-words-page-selection{display:flex;flex-direction:column;gap:.5rem}.reading-save-words-page-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(3rem,1fr));gap:.4rem;max-height:11rem;overflow:auto;padding:.15rem}.reading-save-words-page-btn{min-width:0;padding:.42rem .35rem;text-align:center}.reading-save-words-page-selection .btn.active,.reading-save-words-page-selection .btn[aria-pressed=true]{border-color:color-mix(in srgb,var(--accent) 68%,var(--panel-border));background:color-mix(in srgb,var(--accent) 16%,var(--panel));color:color-mix(in srgb,var(--accent) 80%,var(--text))}.quick-assist-translation-card{border:1px solid var(--panel-border);border-radius:var(--radius-ui);background:linear-gradient(148deg,color-mix(in srgb,var(--bg-soft) 88%,var(--accent) 12%),color-mix(in srgb,var(--panel) 94%,var(--bg-soft) 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cubic-bezier(.22,1,.36,1)}.reading-grid.reading-grid-focus{grid-template-columns:minmax(0,1fr)}.reading-grid.reading-grid-no-transition{transition:none}.reading-grid.reading-grid-idle{grid-template-columns:minmax(520px,760px);justify-content:center}.reading-grid>.panel{min-height:0}.reading-document-header{display:flex;align-items:flex-end;justify-content:space-between;gap:.8rem}.reading-document-header h2{margin:0}.reading-document-sort{display:flex;flex-direction:column;gap:.3rem;font-size:clamp(.677rem,calc(.72rem + .158vw),.806rem);text-transform:uppercase;letter-spacing:.1em;color:var(--muted);width:178px}.reading-sidebar{min-height:0;overflow-x:hidden;overflow-y:auto;animation:panelSlideRight .32s cubic-bezier(.22,1,.36,1)}.reading-sidebar .stack{flex:1;min-height:0;overflow:auto;padding-right:.25rem;padding-bottom:.1rem}.reading-viewer{min-height:0;animation:panelEnter .32s cubic-bezier(.22,1,.36,1)}.modal.reading-edit-modal{width:100%;max-width:1360px;height:min(95vh,1060px);max-height:95vh;overflow:hidden;display:flex;flex-direction:column}.modal.reading-edit-modal>.modal-body{flex:1;min-height:0;display:flex;flex-direction:column;overflow:hidden}.reading-edit-form{flex:1 1 auto;min-height:0;gap:.85rem}.reading-edit-pagination-row{display:flex;align-items:center;justify-content:center;gap:.45rem;align-self:center;width:100%;max-width:min(560px,100%)}.reading-edit-page-count{min-width:5.8rem;text-align:center}.reading-edit-page-shell{flex:1 1 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.308vw),15.68px);color:var(--text);line-height:1.5;pointer-events:auto}.reading-word-tooltip-mobile-actions{width:fit-content;max-width:calc(100vw - 20px);max-height:min(34vh,210px);padding:6px;border:1px solid var(--panel-border);border-radius:10px;background:var(--panel);box-shadow:0 10px 24px -18px #00000094;-webkit-backdrop-filter:none;backdrop-filter:none}.reading-word-tooltip-mobile-actions .reading-word-tooltip-header{border-bottom:none;padding-bottom:0;margin-bottom:0;align-items:center;gap:8px}.reading-word-tooltip-mobile-actions .reading-word-tooltip-title{font-size:clamp(.893rem,calc(.95rem + .209vw),1.064rem);font-weight:700;letter-spacing:0}.reading-word-tooltip-mobile-actions .reading-word-tooltip-actions{gap:.35rem;justify-content:center;width:max-content}.reading-word-tooltip-mobile-actions .reading-word-tooltip-ai-btn{min-height:31px;padding:3px 8px;border-radius:10px;font-size:clamp(.752rem,calc(.8rem + .176vw),.896rem)}.reading-word-tooltip-mobile-actions 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.242vw),12.32px);color:color-mix(in srgb,var(--text) 68%,var(--accent) 32%);background:color-mix(in srgb,var(--panel) 78%,var(--accent) 22%);border:1px solid color-mix(in srgb,var(--accent) 30%,var(--panel-border));padding:2px 7px;border-radius:999px}.reading-word-tooltip-actions{display:flex;gap:4px;flex-wrap:nowrap;justify-content:flex-end;align-items:center;white-space:nowrap;flex-shrink:0}.reading-word-tooltip-actions a,.reading-word-tooltip-actions button{display:inline-flex;align-items:center;justify-content:center;min-height:30px;font-size:clamp(.696rem,calc(.74rem + .163vw),.829rem);font-weight:700;text-decoration:none;color:color-mix(in srgb,var(--text) 82%,var(--accent) 18%);background:linear-gradient(155deg,color-mix(in srgb,var(--panel) 97%,var(--accent) 3%),color-mix(in srgb,var(--bg-soft) 88%,var(--panel) 12%));border:1px solid color-mix(in srgb,var(--accent) 30%,var(--panel-border));padding:4px 10px;border-radius:10px;cursor:pointer;transition:border-color .12s ease,color .12s ease,background .12s ease}.reading-word-tooltip-actions a{color:#fff;border-color:color-mix(in srgb,var(--accent) 56%,var(--panel-border));background:linear-gradient(145deg,color-mix(in srgb,var(--accent) 88%,#ffffff 12%),color-mix(in srgb,var(--accent) 95%,#0f172a 5%));text-shadow:0 1px 0 rgba(0,0,0,.2)}.reading-word-tooltip-actions a:hover,.reading-word-tooltip-actions button:hover:not(:disabled){border-color:color-mix(in srgb,var(--accent) 70%,var(--panel-border));color:var(--accent)}.reading-word-tooltip-actions a:hover{color:#fff}.reading-word-tooltip-actions button{color:var(--text)}.reading-word-tooltip-actions button:disabled{opacity:.65;cursor:not-allowed}.reading-word-tooltip-ai-btn{gap:6px;min-height:32px;padding-inline:11px}.reading-word-tooltip-ai-btn svg{width:14px;height:14px;flex-shrink:0}.reading-word-tooltip-selection-preview{margin:0 0 10px;padding:8px 10px;border-radius:10px;border:1px solid color-mix(in srgb,var(--accent) 18%,var(--panel-border));background:color-mix(in srgb,var(--panel) 94%,var(--bg-soft) 6%);color:color-mix(in srgb,var(--text) 88%,var(--muted) 12%);line-height:1.45;font-size:clamp(.884rem,calc(.94rem + .207vw),1.053rem);max-height:96px;overflow:auto}.reading-word-tooltip-insight-body .chat-markdown p{margin:.18rem 0}.reading-word-tooltip-ask{width:min(510px,calc(100vw - 24px));max-height:min(76vh,640px)}.reading-word-tooltip-question-form{display:flex;flex-direction:column;gap:8px}.reading-word-tooltip-question-label{font-size:clamp(.752rem,calc(.8rem + .176vw),.896rem);font-weight:700;color:color-mix(in srgb,var(--text) 82%,var(--muted) 18%)}.reading-word-tooltip-question-input{width:100%;resize:vertical;min-height:96px;border:1px solid color-mix(in srgb,var(--accent) 20%,var(--panel-border));border-radius:10px;padding:8px 10px;font:inherit;line-height:1.45;color:var(--text);background:color-mix(in srgb,var(--panel) 96%,var(--bg-soft) 4%)}.reading-word-tooltip-question-input:focus{outline:none;box-shadow:none}.reading-word-tooltip-question-actions{display:flex;justify-content:flex-end}.reading-word-tooltip-question-answer{margin-top:10px;padding-top:10px;border-top:1px solid color-mix(in srgb,var(--panel-border) 70%,transparent)}.reading-word-tooltip[data-reader-tooltip=lookup] th,.reading-word-tooltip[data-reader-tooltip=lookup] td{border:1px solid color-mix(in srgb,var(--panel-border) 85%,var(--accent) 15%);padding:4px 6px;text-align:center;color:var(--text)!important;background:color-mix(in srgb,var(--panel) 96%,var(--bg-soft) 4%)!important}.reading-word-tooltip[data-reader-tooltip=lookup] th{background-color:color-mix(in srgb,var(--panel) 76%,var(--accent) 24%)!important;color:var(--text)!important;font-weight:700}.reading-word-tooltip[data-reader-tooltip=lookup] tr:nth-child(2n) td{background:color-mix(in srgb,var(--panel) 92%,var(--bg-soft) 8%)!important}.reading-word-tooltip[data-reader-tooltip=lookup] 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.reader-format-trigger{width:40px;height:40px;padding:0!important}.reading-viewer-mobile-fullscreen .reader-format-menu{top:auto;bottom:calc(100% + .45rem);right:0;left:auto;max-height:min(52vh,420px);overflow-y:auto}.reading-viewer-mobile-fullscreen .reader-pronunciation-actions{gap:0;border:1px solid var(--panel-border);border-radius:10px;overflow:hidden}.reading-viewer-mobile-fullscreen .reader-pronunciation-regenerate-slot{width:40px;height:40px;flex:0 0 40px;border-left:2px solid var(--panel-border)}.reading-viewer-mobile-fullscreen .reader-pronunciation-regenerate-slot.is-hidden{display:none;border-left:none}.reading-viewer-mobile-fullscreen .text-viewer{order:1;border-left:none;border-right:none;border-bottom:none;border-top:none;padding-top:.3rem;padding-bottom:calc(1.15rem + env(safe-area-inset-bottom));padding-left:calc(var(--reader-mobile-inline-pad) + env(safe-area-inset-left));padding-right:calc(var(--reader-mobile-inline-pad) + env(safe-area-inset-right));margin-top:0;min-height:0;flex:1 1 auto;overflow-x:hidden!important;overflow-y:hidden!important;scrollbar-width:none}.reading-viewer-mobile-fullscreen .text-viewer::-webkit-scrollbar{display:none}.reading-viewer-mobile-fullscreen .text-viewer-content{-webkit-backface-visibility:hidden;backface-visibility:hidden;-webkit-transform:translate3d(0,0,0);transform:translateZ(0)}.reading-viewer-mobile-fullscreen .text-viewer[lang|=hi] .text-viewer-content,.reading-viewer-mobile-fullscreen .text-viewer[lang|=am] .text-viewer-content{-webkit-backface-visibility:visible;backface-visibility:visible;-webkit-transform:none;transform:none}.reading-viewer-mobile-fullscreen .text-viewer.reader-pronunciation-dual-line-view[lang|=hi] .reader-pron-ruby-text-inner,.reading-viewer-mobile-fullscreen .text-viewer.reader-pronunciation-dual-line-view[lang|=am] .reader-pron-ruby-text-inner{transform:none;position:relative;top:var(--reader-inline-ruby-base-gap, 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.reader-mobile-page-turn-zone{position:absolute;top:0;bottom:0;width:clamp(52px,14vw,76px);padding:0;border:0;background:transparent;pointer-events:auto;z-index:4;-webkit-tap-highlight-color:transparent;touch-action:manipulation}.reading-viewer-mobile-fullscreen .reader-mobile-page-turn-zone-prev{left:0}.reading-viewer-mobile-fullscreen .reader-mobile-page-turn-zone-next{right:0}.reading-viewer-mobile-fullscreen .reader-icon-flash:after{display:none!important}.reading-viewer-mobile-fullscreen .reader-pronunciation-toggle,.reading-viewer-mobile-fullscreen .reader-pronunciation-regenerate,.reading-viewer-mobile-fullscreen [data-tour=reading-save-words-button]:not(.reader-mobile-save-words-btn){border-color:transparent!important;box-shadow:none!important;background:transparent!important}.reading-viewer-mobile-fullscreen .reader-pronunciation-toggle.active,.reading-viewer-mobile-fullscreen 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10%,var(--panel));box-shadow:none;pointer-events:none}.memory-tile.wrong{border-color:var(--danger);background:#cc22441f}.deck-actions{position:relative;margin-bottom:1rem}.deck-actions-trigger{width:100%}.deck-actions-menu{position:absolute;top:calc(100% + 4px);left:0;width:100%;max-height:clamp(312.8px,calc(340px + .8vw),394.4px);overflow-y:auto;border:1px solid var(--text);background:var(--panel);z-index:110;padding:4px}.deck-actions-item{width:100%;text-align:left;border:none;background:transparent;color:var(--text);padding:.55rem .7rem;cursor:pointer;font-family:inherit}.deck-actions-item:hover{background:var(--bg-soft)}.deck-actions-item:disabled{opacity:.45;cursor:not-allowed}.deck-actions-item.selected{background:var(--accent);color:#fff;font-weight:600}.deck-actions-item.danger{color:var(--danger)}.deck-actions-divider{height:1px;background:var(--panel-border);margin:4px 2px}.deck-actions-label{margin:4px clamp(7px,calc(8px + .16vw),9.8px) 2px;font-size:clamp(.677rem,calc(.72rem + .158vw),.806rem);letter-spacing:.08em;text-transform:uppercase;color:var(--muted)}.paste-table-textarea{min-height:clamp(294.4px,calc(320px + .8vw),371.2px);resize:vertical;font-family:DM Mono,monospace;font-size:clamp(.799rem,calc(.85rem + .187vw),.952rem)}.deck-setup-modal{display:flex;flex-direction:column;gap:.9rem}.deck-setup-topbar{display:grid;grid-template-columns:minmax(0,1fr) auto;gap:.6rem;align-items:end}.deck-setup-save-actions{display:flex;justify-content:flex-end;gap:.6rem;flex-wrap:wrap}.deck-setup-sort-trigger{min-width:6.4rem}.deck-setup-sort-trigger .repetition-list-toolbar__button{width:100%}.deck-setup-column-map{display:block;margin-bottom:.8rem}.deck-setup-table-wrap{max-height:52vh;overflow:auto;border:1px solid var(--panel-border);background:var(--bg-soft)}.deck-setup-table{width:100%;border-collapse:collapse}.deck-setup-table th,.deck-setup-table td{border:1px solid var(--panel-border);padding:.4rem;vertical-align:top}.deck-setup-row.is-dragging{background:color-mix(in srgb,var(--panel) 68%,var(--bg-soft))}.deck-setup-row-drag-td{width:2.5rem;text-align:center}.deck-setup-drag-handle{background:transparent;border:none;color:var(--text-muted);cursor:grab;display:inline-flex;align-items:center;justify-content:center;width:1.8rem;height:1.8rem;border-radius:.45rem;transition:background .15s ease,color .15s ease}.deck-setup-drag-handle:hover{background:color-mix(in srgb,var(--bg-soft) 72%,transparent);color:var(--text)}.deck-setup-drag-handle:active{cursor:grabbing}.deck-setup-delete-row{background:transparent;border:none;cursor:pointer;color:var(--text-muted);display:inline-flex;align-items:center;justify-content:center;padding:.4rem;transition:color .15s}.deck-setup-delete-row:hover{color:var(--status-error)}.mode-setup-example-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:.8rem}.mode-setup-example-item{border:1px solid 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var(--panel-border);transition:background-color .16s ease}.list-mode-table tr.selected{background-color:color-mix(in srgb,var(--accent) 30%,var(--panel))}.list-mode-table td{padding:.7rem;vertical-align:middle;overflow-wrap:anywhere;word-break:break-word}[data-shell=compact] .list-mode-table td{padding:.45rem .55rem;font-size:clamp(.799em,calc(.85em + .187vw),.952em)}.list-mode-table .star-cell{width:clamp(40.48px,calc(44px + .8vw),51.04px)}[data-shell=compact] .list-mode-table .star-cell{width:clamp(31.28px,calc(34px + .68vw),39.44px)}.list-star-btn{border:none;background:transparent;color:var(--text);font-size:clamp(.94rem,calc(1rem + .22vw),1.12rem);cursor:pointer;user-select:none;-webkit-user-select:none;-webkit-tap-highlight-color:transparent}[data-shell=compact] .list-star-btn{font-size:clamp(.799rem,calc(.85rem + .187vw),.952rem)}.flashcard-star{border:none;background:transparent;padding:.2rem;display:inline-flex;align-items:center;justify-content:center;cursor:pointer;user-select:none;-webkit-user-select:none;-webkit-tap-highlight-color:transparent}.flashcard-star svg{pointer-events:none}.list-answer-cell.blurred{filter:blur(7px);opacity:.62}.multiple-choice-option{text-align:center}.session-complete-pulse{background:color-mix(in srgb,var(--success) 12%,transparent);border:1px solid var(--success);padding:1.5rem;border-radius:var(--radius-ui);text-align:center}.session-complete-pulse p{font-size:clamp(1.175rem,calc(1.25rem + .275vw),1.4rem);font-weight:600;color:var(--success)}.bonus-round-shell{gap:.9rem;border:1px solid color-mix(in srgb,#f7bf3c 52%,var(--panel-border));background:linear-gradient(145deg,color-mix(in srgb,#f7bf3c 16%,transparent),color-mix(in srgb,var(--panel) 94%,transparent) 70%);border-radius:12px;padding:1rem;animation:fadeInUp .24s ease}.modal.bonus-round-invite-modal{border-color:color-mix(in srgb,#f7bf3c 64%,var(--panel-border));background:radial-gradient(120% 140% at 12% -12%,color-mix(in srgb,#f7bf3c 28%,transparent),transparent 52%),linear-gradient(165deg,color-mix(in srgb,var(--panel) 94%,#f9e3a7 6%),var(--panel))}.bonus-round-invite-body{gap:.82rem}.bonus-round-invite-kicker{align-self:flex-start;border:1px solid color-mix(in srgb,#f7bf3c 62%,var(--panel-border));background:color-mix(in srgb,#f7bf3c 18%,transparent);color:color-mix(in srgb,#f7bf3c 88%,var(--text));border-radius:999px;padding:.2rem .62rem;text-transform:uppercase;letter-spacing:.08em;font-size:clamp(.658rem,calc(.7rem + .154vw),.784rem);font-family:DM Mono,monospace}.bonus-round-invite-confirm{border-color:color-mix(in srgb,#f7bf3c 68%,var(--accent));background:linear-gradient(145deg,color-mix(in srgb,#f7bf3c 86%,#ffd665 14%),color-mix(in srgb,#e7aa2f 76%,#f7bf3c 24%));color:#1f1a10;box-shadow:0 6px 14px -10px color-mix(in srgb,#f7bf3c 88%,transparent)}.bonus-round-invite-confirm:hover{filter:brightness(1.04)}.bonus-round-fullscreen{min-height:100vh;min-height:100dvh;width:100%;padding:clamp(.75rem,2.4vw,1.75rem);display:grid;place-items:center}.bonus-round-fullscreen>.bonus-round-shell{width:min(clamp(901.6px,calc(980px + .8vw),1136.8px),100%);max-height:calc(100dvh - 2rem);overflow:auto}.bonus-round-shell.completed{border-color:color-mix(in srgb,var(--success) 56%,var(--panel-border));background:linear-gradient(145deg,color-mix(in srgb,var(--success) 12%,transparent),color-mix(in srgb,var(--panel) 94%,transparent) 70%)}.bonus-round-head{display:flex;align-items:center;justify-content:space-between;gap:.8rem;flex-wrap:wrap}.bonus-round-xp{border:1px solid color-mix(in srgb,#a96e06 72%,var(--panel-border));background:color-mix(in srgb,#c8840e 30%,transparent);color:color-mix(in srgb,#3b2500 88%,var(--text));border-radius:999px;font-size:clamp(.733rem,calc(.78rem + .172vw),.874rem);font-weight:700;padding:.24rem .58rem;white-space:nowrap}.bonus-round-grid{gap:.68rem}.bonus-round-option{border-color:color-mix(in srgb,#f7bf3c 46%,var(--panel-border));background:color-mix(in srgb,#f7bf3c 6%,transparent)}.bonus-round-option:hover{border-color:color-mix(in srgb,#f7bf3c 62%,var(--panel-border));background:color-mix(in srgb,#f7bf3c 10%,transparent)}.bonus-round-option.selected{border-color:var(--accent)}.bonus-round-option.correct{border-color:var(--success);background:color-mix(in srgb,var(--success) 20%,transparent)}.bonus-round-option.wrong{border-color:var(--danger);background:color-mix(in srgb,var(--danger) 20%,transparent)}.bonus-round-summary{border:1px solid color-mix(in srgb,var(--success) 44%,var(--panel-border));background:color-mix(in srgb,var(--success) 10%,transparent);border-radius:var(--radius-ui);padding:.85rem;gap:.7rem;text-align:center}@keyframes fadeInUp{0%{opacity:0;transform:translateY(8px) scale(.98)}to{opacity:1;transform:translateY(0) scale(1)}}@media(max-width:1280px){.memory-grid{grid-template-columns:repeat(4,minmax(0,1fr))}}@media(max-width:860px){.repetition-player-shell{--repetition-player-stage-offset: 0rem}.repetition-player-shell .repetition-player-main.lesson-main{display:flex!important;flex-direction:column!important;justify-content:center!important;justify-content:safe center!important;align-items:center!important;padding:.5rem 0!important}.repetition-player-shell .repetition-player-stage{margin-top:0!important}.repetition-player-topbar{grid-template-columns:1fr}.repetition-player-topbar>[aria-hidden=true]{display:none}.repetition-player-topbar .lesson-progress-wrap{order:2}.repetition-player-actions{order:1;width:100%;flex-wrap:nowrap;justify-content:flex-start}.repetition-player-actions>*{flex:0 0 auto}.repetition-player-actions 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.176vw),.896rem);padding-inline:.5rem}.mode-setup-example-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:.4rem}.deck-setup-column-map{margin-bottom:.4rem}.deck-setup-column-map label{font-size:clamp(.752rem,calc(.8rem + .176vw),.896rem)}.deck-setup-save-actions{margin-top:0}.deck-setup-table th,.deck-setup-table td{display:block;width:100%;border:none!important;padding:0}.deck-setup-table td input{width:calc(100% - 2rem)!important}.deck-setup-table tr{display:flex;flex-direction:column;position:relative;gap:.4rem;padding:1.2rem .8rem .8rem;border:1px solid var(--panel-border);border-radius:var(--radius-sm);margin-bottom:.8rem}.deck-setup-row-actions-td{position:absolute!important;top:.2rem;right:.2rem;width:auto!important;padding:0!important}.deck-setup-row-drag-td{position:absolute!important;top:.22rem;left:.2rem;width:auto!important;padding:0!important}.deck-setup-drag-handle{width:clamp(25.76px,calc(28px + .56vw),32.48px);height:clamp(25.76px,calc(28px + 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.btn.is-warning:hover:not(:disabled){border-color:var(--danger)}.composer-action-icon{width:calc(1.55rem + 6px);height:calc(1.55rem + 6px);flex-shrink:0;display:block}.composer-actions .btn{--tutor-voice-icon-fg: #111111}[data-theme=dark] .composer-actions .btn{--tutor-voice-icon-fg: #ffffff}.tutor-voice-icon-bar{fill:var(--tutor-voice-icon-fg)}.chat-source-modal-list{display:flex;flex-direction:column;gap:.6rem;margin-top:.6rem;max-height:min(52vh,420px);overflow:auto;padding-right:.1rem}.modal.chat-source-selector-modal{width:clamp(22rem,60vw,34rem);max-width:calc(100vw - 2rem)}.chat-source-modal-content{display:flex;flex-direction:column;gap:.6rem}.chat-source-modal-filters{display:flex;gap:.5rem}.chat-source-modal-filter.btn{flex:1;justify-content:center}.chat-source-modal-filter.btn.active{border-color:var(--accent);color:var(--accent);background:color-mix(in srgb,var(--accent) 10%,transparent)}.chat-source-modal-filter-status{margin:-.2rem 0 0;color:var(--muted);font-size:clamp(.771rem,calc(.82rem + .18vw),.918rem)}.chat-source-modal-item.btn{width:100%;justify-content:flex-start;text-align:left;border-width:1px;padding:.72rem .9rem}.chat-source-modal-item-copy{width:100%;min-width:0;display:flex;align-items:center;gap:.75rem}.chat-source-modal-item-copy>.truncated{min-width:0}.chat-source-modal-item-badge{margin-left:auto;flex-shrink:0;border-radius:999px;border:1px solid color-mix(in srgb,var(--accent) 48%,transparent);background:color-mix(in srgb,var(--accent) 12%,transparent);color:color-mix(in srgb,var(--accent) 92%,var(--text));padding:.14rem .52rem;font-size:clamp(.639rem,calc(.68rem + .15vw),.762rem);font-weight:600;letter-spacing:.04em;text-transform:uppercase}.chat-source-modal-empty{margin:0;padding:.75rem .25rem;color:var(--muted)}.chat-source-modal-item.btn:hover:not(:disabled){transform:none}@keyframes chat-assistant-enter{0%{opacity:0;transform:translateY(8px)}to{opacity:1;transform:translateY(0)}}@keyframes 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textarea:focus{outline:none;border-color:var(--panel-border)}.chat-voice-composer{--chat-voice-wave-color: color-mix(in srgb, var(--accent) 78%, #ffffff 22%);width:100%;border:1px solid var(--panel-border);background:color-mix(in srgb,var(--panel) 78%,transparent);min-height:124px;display:flex;flex-direction:column;justify-content:center;gap:.75rem;padding:.75rem .85rem}.chat-voice-composer.user{--chat-voice-wave-color: color-mix(in srgb, var(--accent) 78%, #ffffff 22%)}.chat-voice-composer.assistant{--chat-voice-wave-color: #2a73db}[data-theme=dark] .chat-voice-composer.assistant{--chat-voice-wave-color: #6cabff}.chat-voice-head{display:flex;align-items:center;justify-content:space-between;gap:.5rem}.chat-voice-hint{font-size:clamp(.771rem,calc(.82rem + .18vw),.918rem);font-weight:600;color:var(--muted);letter-spacing:.04em;text-transform:uppercase}.chat-voice-speaker{display:inline-flex;align-items:center;justify-content:center;border-radius:999px;border:1px solid color-mix(in srgb,var(--chat-voice-wave-color) 36%,var(--panel-border));background:color-mix(in srgb,var(--chat-voice-wave-color) 10%,transparent);color:color-mix(in srgb,var(--chat-voice-wave-color) 72%,var(--text));font-size:clamp(.677rem,calc(.72rem + .158vw),.806rem);font-weight:700;letter-spacing:.03em;text-transform:uppercase;padding:.18rem .5rem}.chat-voice-wave-shell{position:relative;align-self:center;width:min(80%,500px);max-width:100%;min-width:250px;display:flex;align-items:center;justify-content:center;min-height:64px;border-radius:var(--radius-ui);border:1px solid color-mix(in srgb,var(--chat-voice-wave-color) 18%,var(--panel-border));background:linear-gradient(180deg,color-mix(in srgb,var(--chat-voice-wave-color) 6%,transparent) 0%,transparent 48%,color-mix(in srgb,var(--chat-voice-wave-color) 8%,transparent) 100%);overflow:hidden;padding:.2rem .6rem}.chat-voice-wave-shell:before{content:"";position:absolute;inset:50% 0 auto;height:1px;background:color-mix(in 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1.1rem;display:grid;gap:.9rem}.cloze-sentence{margin:0;text-align:center;font-size:clamp(2.068rem,calc(2.2rem + .484vw),2.464rem);font-weight:550;line-height:1.5;color:var(--cloze-ink);overflow-wrap:anywhere}.cloze-pronunciation-line{margin:-.2rem 0 0;text-align:center;font-size:clamp(.94rem,calc(1rem + .22vw),1.12rem);line-height:1.35;color:color-mix(in srgb,var(--cloze-ink) 64%,var(--cloze-accent) 36%);overflow-wrap:anywhere}.cloze-option-pronunciation{display:block;font-size:clamp(.827rem,calc(.88rem + .194vw),.986rem);line-height:1.2;color:color-mix(in srgb,var(--cloze-soft) 72%,var(--cloze-accent) 28%)}.cloze-choice-pronunciation{margin-top:.2rem}.cloze-translation-btn{justify-self:center}.cloze-translation-text{margin:0;text-align:center;font-size:clamp(1.128rem,calc(1.2rem + .264vw),1.344rem);color:var(--cloze-soft);font-style:italic}.cloze-card 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.cloze-card{max-width:none;width:100%;margin:0 auto;border:none}.cloze-objective-matching{justify-self:center;width:min(clamp(662.4px,calc(720px + .8vw),835.2px),100%);gap:1rem}@media(max-width:1024px){.cloze-setup-grid{grid-template-columns:1fr}}@media(max-width:860px){.cloze-lesson-choice-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr))!important;gap:.5rem;width:100%}.cloze-difficulty-grid{grid-template-columns:repeat(2,minmax(0,1fr))}.cloze-player-topbar{grid-template-columns:1fr}.cloze-player-topbar>[aria-hidden=true]{display:none}.cloze-player-topbar .lesson-progress-wrap{order:2}.cloze-player-actions{order:1;width:100%;flex-wrap:nowrap;justify-content:flex-start}.cloze-player-actions>*{flex:0 0 auto}.cloze-player-actions .lesson-close-btn{margin-left:auto}.cloze-player-progress{width:100%}.cloze-progress-track{display:none}.cloze-mobile-control-row{justify-self:center;display:flex;gap:.45rem;align-items:stretch;width:min(clamp(331.2px,calc(360px + 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.btn{flex:1}.playground-tour-skip{border:none;background:transparent;color:var(--muted);cursor:pointer;text-align:center;font-size:clamp(.733rem,calc(.78rem + .172vw),.874rem);padding:0}.playground-tour-skip:hover{color:var(--text)}.chat-page.chat-transparent .playground-header{background:transparent!important;box-shadow:none!important}@media(max-width:1024px){.playground-shell{width:min(100%,calc(100vw - 2.5rem))}.playground-shell{height:calc(100% - 2rem);margin:1rem auto;width:min(100%,calc(100vw - 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env(safe-area-inset-bottom))}.playground-header-title{font-size:clamp(1.269rem,calc(1.35rem + .297vw),1.512rem)}.playground-topbar-progress{margin-left:0;justify-content:flex-start;width:100%}.playground-topbar-progress .playground-progress-pills{justify-content:flex-start}.playground-progress-pills{display:flex;flex-direction:row;flex-wrap:nowrap;overflow-x:auto;width:100%;-webkit-overflow-scrolling:touch;scrollbar-width:none;gap:.35rem;padding-bottom:.2rem}.playground-progress-pills::-webkit-scrollbar{display:none}.playground-progress-pills-main{display:flex;flex-direction:row;flex-wrap:nowrap;gap:.35rem;flex:0 0 auto;width:auto;margin-left:0}.playground-progress-pill{white-space:nowrap;font-size:clamp(.705rem,calc(.75rem + .165vw),.84rem);padding:.2rem .45rem}.playground-progress-pill.ask-ai-pill{padding:.2rem .48rem}.playground-progress-pill.ask-ai-pill+.playground-progress-pill.mascot-pill{margin-left:.35rem}.playground-progress-pill.mascot-pill{gap:.3rem;font-size:clamp(.893rem,calc(.95rem + .209vw),1.064rem);padding:0;display:grid;place-items:center;width:var(--ring-size, 2.98rem)!important;height:var(--ring-size, 2.98rem)!important;min-width:var(--ring-size, 2.98rem);min-height:var(--ring-size, 2.98rem);max-width:var(--ring-size, 2.98rem);max-height:var(--ring-size, 2.98rem);aspect-ratio:1 / 1;flex:0 0 var(--ring-size, 2.98rem);line-height:0;border-radius:50%}.playground-card{padding:.85rem .9rem}.playground-header{display:flex;flex-direction:column;gap:.6rem;padding:.8rem 1.25rem .6rem;border-bottom:1px solid var(--panel-border);margin-bottom:.8rem}.playground-header-row{display:flex;align-items:center;justify-content:space-between;gap:.75rem;min-width:0}.playground-header-group{display:flex;align-items:center;gap:.45rem}.playground-header-info{font-size:clamp(.677rem,calc(.72rem + .158vw),.806rem);font-weight:700;color:var(--accent);text-transform:uppercase;letter-spacing:.04em;white-space:nowrap}.playground-header .icon-btn{width:32px!important;height:32px!important;min-height:32px!important;padding:0!important}.playground-header-title{font-size:clamp(.893rem,calc(.95rem + .209vw),1.064rem)!important;font-weight:600}.reading-viewer .playground-header-main{margin-bottom:.5rem}.reading-viewer .playground-header-main .playground-header-title{font-size:clamp(1.072rem,calc(1.14rem + .251vw),1.277rem)!important;transform:translateY(-1px)}.reading-viewer-mobile-fullscreen .playground-header{order:2;padding-top:.34rem;padding-bottom:calc(.18rem + env(safe-area-inset-bottom));padding-left:calc(var(--reader-mobile-inline-pad) + env(safe-area-inset-left));padding-right:calc(var(--reader-mobile-inline-pad) + env(safe-area-inset-right));border-top:1px solid var(--panel-border);border-bottom:none;margin-bottom:0;gap:.32rem;overflow-x:clip;position:relative;z-index:6}.reading-viewer-mobile-fullscreen .reading-mobile-topbar .playground-header-title,.reading-viewer-mobile-fullscreen .playground-header-main .playground-header-title{font-size:clamp(.752rem,calc(.8rem + .176vw),.896rem)!important;line-height:1.15}.reading-viewer-mobile-fullscreen .playground-header-main{margin-bottom:0}.reading-viewer-mobile-fullscreen .playground-header-tools{display:flex;align-items:center;gap:.65rem;flex-wrap:nowrap}}.playground-header{border:none!important;box-shadow:none!important}.playground-inline-001{display:flex;flex-wrap:nowrap;align-items:stretch;gap:.35rem;margin-bottom:1.5rem;border-bottom:1px solid var(--panel-border);overflow-x:auto;overflow-y:visible}.playground-inline-002{margin:0;display:block}.playground-inline-003{padding:.38rem .78rem}.playground-inline-004{display:grid;grid-template-columns:1fr 1fr;gap:.6rem;max-width:520px}.playground-inline-005{margin:1.5rem 0 0}.playground-inline-006{margin-top:.6rem}.playground-inline-007{justify-content:flex-end;margin-top:.5rem}.playground-inline-008{pointer-events:none}.playground-inline-009{color:var(--danger);margin-top:-.4rem}.settings-page-shell{width:min(1296px,97vw);max-width:100%;margin:.75rem auto 2rem;overflow-x:visible;animation:pageEnter .3s ease-out}.settings-page-header-actions:empty{display:none}.settings-page-header-main{align-items:center}.settings-close-btn{min-width:2.2rem;height:2.2rem;padding:0;border:none}.settings-mobile-save-btn{display:none}.settings-tab-strip{display:flex;flex-wrap:wrap;overflow-x:visible;overflow-y:visible;row-gap:.35rem}.settings-tab-strip .btn{flex:0 1 auto;min-width:0}:root[data-ui-theme] .settings-page-shell .btn,:root[data-ui-theme] .settings-page-shell .icon-btn{transition-property:background-color,color,border-color,box-shadow,opacity!important;transition-duration:.16s!important;transition-timing-function:ease!important}.settings-tab-strip .settings-tab-button{border-color:var(--panel-border);border-bottom:2px solid transparent;border-radius:0;color:var(--muted);padding:.5rem 1rem;width:auto}.settings-tab-strip .settings-tab-button[data-active=true]{border-color:var(--accent);border-bottom-color:var(--accent);color:var(--text)}.settings-tab-dropdown{width:min(100%,420px);margin-top:.4rem;margin-bottom:.35rem;padding-bottom:.6rem;border-bottom:1px solid var(--panel-border)}:root[data-ui-theme] .settings-tab-strip .btn{position:relative;z-index:0;transition:background .16s ease,border-color .16s ease,color .16s ease,box-shadow .16s ease}:root[data-ui-theme] .settings-tab-strip .btn:hover:not(:disabled),:root[data-ui-theme] .settings-tab-strip .btn:active:not(:disabled){transform:none;z-index:2;border-color:var(--accent);color:var(--text)}:root[data-ui-theme] .settings-tab-strip .btn[data-active=true]{border-color:var(--accent);border-bottom-color:var(--accent);color:var(--text)}:root[data-ui-theme] .settings-tab-strip .btn[data-active=true]:hover:not(:disabled),:root[data-ui-theme] .settings-tab-strip .btn[data-active=true]:active:not(:disabled){border-color:var(--accent);border-bottom-color:var(--accent);color:var(--text)}:root[data-ui-theme] .settings-page-shell .settings-tab-inner-panel{border:none!important;box-shadow:none!important}.settings-general-panel{width:min(100%,680px)}.settings-section-heading-with-info{display:inline-flex;align-items:center;flex-wrap:nowrap;gap:.45rem;max-width:100%}.settings-info-tooltip{position:relative;display:inline-flex;align-items:center}.settings-info-tooltip-trigger{width:18px;height:18px;border-radius:999px;border:1px solid color-mix(in srgb,var(--panel-border) 76%,var(--accent));background:color-mix(in srgb,var(--panel) 86%,var(--bg-soft) 14%);color:var(--accent);display:inline-flex;align-items:center;justify-content:center;cursor:help;padding:0;line-height:1}.settings-info-tooltip-trigger:hover,.settings-info-tooltip:focus-within .settings-info-tooltip-trigger{border-color:var(--panel-border);background:var(--panel)}.settings-info-tooltip-trigger:focus-visible{outline:none;box-shadow:none}.settings-info-tooltip-content{position:absolute;left:50%;right:auto;top:calc(100% + 8px);transform:translate(calc(-50% + var(--settings-general-tooltip-shift-x, 0px))) translateY(4px);width:min(320px,calc(100vw - 2rem));border:1px solid color-mix(in srgb,var(--accent) 28%,var(--panel-border));background:color-mix(in srgb,var(--panel) 97%,var(--bg-soft) 3%);color:var(--text);font-size:clamp(.714rem,calc(.76rem + .167vw),.851rem);font-weight:500;line-height:1.4;padding:.6rem .7rem;box-shadow:0 10px 24px #0003;z-index:220;pointer-events:none;opacity:0;transition:opacity .14s ease,transform .14s ease}.settings-info-tooltip-content>span{display:block}.settings-info-tooltip-content ul{margin:.3rem 0;padding-left:1rem}.settings-info-tooltip-content li+li{margin-top:.2rem}.settings-info-tooltip:hover .settings-info-tooltip-content,.settings-info-tooltip:focus-within .settings-info-tooltip-content{opacity:1;transform:translate(calc(-50% + var(--settings-general-tooltip-shift-x, 0px))) translateY(0)}.row.gap.settings-general-start-row{flex-wrap:wrap;align-items:stretch;justify-content:flex-start;gap:1rem;min-width:0;width:100%}.settings-general-start-row .popup-select-container{flex:1 1 320px;min-width:0;max-width:100%}.settings-general-start-row .btn{flex:0 1 auto;margin-left:0;white-space:nowrap}.settings-audio-volume-range,.settings-voice-speed-range{width:100%;max-width:none}.settings-slider-shell{flex:1 1 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auto}.settings-session-size-list{display:flex;flex-direction:column;gap:.75rem}.settings-session-size-row{display:grid;grid-template-columns:minmax(8.5rem,11rem) minmax(0,1fr);gap:.75rem;align-items:center}.settings-session-size-row--stacked{grid-template-columns:1fr;align-items:stretch;gap:.42rem}.settings-session-size-label{font-weight:600;color:var(--text)}.settings-session-size-segmented,.settings-cloze-answer-segmented{width:100%}.settings-session-size-segmented .mode-setup-segment,.settings-cloze-answer-segmented .mode-setup-segment{padding-inline:.45rem}.settings-cloze-answer-segmented{width:100%}.settings-cloze-defaults-stack{display:flex;flex-direction:column;gap:.75rem}.settings-cloze-defaults-note{margin:0;font-size:clamp(.771rem,calc(.82rem + .18vw),.918rem)}.settings-cloze-setting-title{margin:0;font-family:DM Sans,sans-serif;font-weight:600;font-size:clamp(.846rem,calc(.9rem + .198vw),1.008rem);color:var(--muted)}.settings-voice-speed-note{margin-top:-.25rem}.settings-voice-advanced-toggle{display:inline-flex;align-items:center;gap:.4rem;align-self:flex-start;margin-top:.7rem;padding:.35rem .65rem}.settings-voice-advanced-chevron{font-size:clamp(.677rem,calc(.72rem + .158vw),.806rem);line-height:1;transition:transform .16s ease}.settings-voice-advanced-chevron.is-open{transform:rotate(180deg)}.settings-voice-advanced-panel{border:1px solid var(--panel-border);border-radius:var(--radius-ui);padding:.65rem .75rem;background:color-mix(in srgb,var(--panel) 93%,var(--bg-soft) 7%);display:flex;flex-direction:column;gap:.65rem}.settings-voice-advanced-panel .settings-audio-volume-block{gap:.45rem}.settings-audio-grid .settings-split-card{gap:1rem}.settings-audio-grid .settings-split-card-header{min-height:2.25rem;align-items:center}.settings-danger-zone{display:flex;flex-direction:column;gap:.85rem;margin-top:.5rem}.settings-theme-layout{display:grid;grid-template-columns:minmax(360px,46%) minmax(0,1fr);align-items:start;column-gap:1.65rem;row-gap:.75rem}.settings-theme-accent-col{min-width:0}.settings-theme-accent-row{display:inline-flex;align-items:center;gap:.45rem;flex-wrap:wrap}.settings-theme-ui-col{min-width:0;grid-column:1 / -1}.settings-theme-ui-row{display:flex;flex-wrap:wrap;justify-content:flex-start;gap:.45rem;overflow-x:visible;overflow-y:visible;padding-top:.1rem}.settings-theme-ui-row .btn{width:auto;min-height:40px;padding:.5rem .9rem;flex:0 0 auto;white-space:nowrap}.settings-theme-accent-row .icon-btn.is-selected,.settings-theme-accent-row .icon-btn.is-selected:hover,.settings-theme-accent-row .icon-btn.is-selected:active,.settings-theme-accent-row .icon-btn.is-selected:focus,.settings-theme-accent-row .icon-btn.is-selected:focus-visible{border:2px solid var(--text)!important;border-color:var(--text)!important;position:relative}.settings-theme-accent-row .icon-btn.is-selected:before,.settings-theme-accent-row .icon-btn.is-selected:after{content:"";position:absolute;left:50%;top:50%;width:66%;height:2px;border-radius:999px;background:var(--text);pointer-events:none;transform-origin:center}.settings-theme-accent-row .icon-btn.is-selected:before{transform:translate(-50%,-50%) rotate(45deg)}.settings-theme-accent-row .icon-btn.is-selected:after{transform:translate(-50%,-50%) rotate(-45deg)}.settings-theme-ui-row .btn:hover,.settings-theme-ui-row .btn:active{transform:none}:root[data-ui-theme] .settings-theme-ui-row .btn.ghost:hover:not(:disabled),:root[data-ui-theme] .settings-theme-ui-row .btn.ghost:active:not(:disabled){background:transparent!important;border-color:var(--accent)!important;color:var(--text)!important}:root[data-ui-theme] .settings-theme-ui-row 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1.2rem}.settings-stats-item{display:grid;gap:.2rem;padding-top:.75rem;border-top:1px solid var(--panel-border)}.settings-stats-item dt{color:var(--muted);font-size:clamp(.733rem,calc(.78rem + .172vw),.874rem);font-weight:600}.settings-stats-item dd{margin:0;color:var(--text);font-size:clamp(1.41rem,calc(1.5rem + .33vw),1.68rem);font-weight:700;line-height:1}.settings-stats-item span{color:var(--muted);font-size:clamp(.752rem,calc(.8rem + .176vw),.896rem);line-height:1.2}[data-viewport=phone] .settings-page-shell{margin-bottom:1rem}[data-viewport=phone] .settings-page-header{align-items:flex-start}[data-viewport=phone] .settings-stats-grid{grid-template-columns:1fr}[data-viewport=phone] .settings-mobile-save-btn{display:inline-flex;width:100%;justify-content:center;margin-top:.9rem}[data-viewport=phone] .settings-tab-dropdown{width:100%}[data-viewport=phone] .settings-general-panel{overflow-x:hidden;--settings-general-tooltip-shift-x: -150px}[data-viewport=phone] .settings-section-heading-with-info{display:flex;flex-wrap:nowrap;align-items:center;min-width:0}[data-viewport=phone] .settings-section-heading-with-info>h3{flex:1 1 auto;min-width:0;margin-bottom:0}[data-viewport=phone] .settings-section-heading-with-info .settings-info-tooltip{flex:0 0 auto}@media(max-width:1024px){.settings-page-shell{width:min(100%,calc(100vw - 2.5rem))}}@media(max-width:720px){.row.gap.settings-general-start-row{flex-wrap:wrap;align-items:stretch}.settings-general-start-row .popup-select-container{flex:1 1 100%;width:100%;min-width:0}.settings-general-start-row .btn{margin-left:0;width:100%;justify-content:center}.settings-audio-volume-range{width:100%;max-width:none}.settings-slider-shell{flex-basis:100%}.settings-session-size-row{grid-template-columns:1fr;gap:.4rem}}@media(max-width:960px){.settings-horizontal-grid{grid-template-columns:1fr;column-gap:0}.settings-theme-layout{grid-template-columns:1fr;column-gap:.6rem}.settings-theme-accent-row{flex-wrap:wrap}.settings-theme-ui-row{flex-wrap:wrap;overflow-x:visible}.settings-upgrade-notice{width:100%;min-width:0}}@media(max-width:767px){.settings-page-shell{width:min(100%,calc(100vw - 2.5rem))}.settings-upgrade-btn{width:100%}.settings-theme-layout,.settings-theme-accent-row,.settings-theme-ui-row{grid-template-columns:1fr}}.settings-inline-001{margin-bottom:1.5rem;border-bottom:1px solid var(--panel-border);overflow-x:hidden;overflow-y:visible}.settings-inline-002{margin-bottom:.5rem;display:block}.settings-inline-003{margin-top:.4rem}.settings-inline-004{margin-top:.8rem;flex-wrap:wrap}.lesson-shell{--lesson-bg: radial-gradient(clamp(920px, calc(1000px + .8vw) , 1160px) clamp(441.6px, calc(480px + .8vw) , 556.8px) at 50% clamp(-185.6px, calc(-160px - .8vw) , -147.2px), color-mix(in srgb, var(--accent) 14%, transparent), transparent 70%), linear-gradient(160deg, #f3f9ff 0%, #edf6ff 46%, #e8f2fc 100%);--lesson-text-color: #122738;--lesson-muted-color: #4a6578;--lesson-border-soft: rgba(66, 96, 115, .22);--lesson-border-strong: rgba(52, 86, 108, .38);--lesson-surface: linear-gradient(165deg, rgba(255, 255, 255, .86), rgba(242, 249, 255, .94));--lesson-surface-strong: rgba(255, 255, 255, .94);--lesson-topbar-button-bg: rgba(255, 255, 255, .72);--lesson-ghost-bg: rgba(255, 255, 255, .55);--lesson-choice-bg: rgba(223, 236, 246, .82);--lesson-progress-track: rgba(101, 133, 153, .26);--lesson-progress-label-color: var(--accent);--lesson-overlay: rgba(8, 23, 35, .75);--lesson-heart-pill-bg: rgba(255, 255, 255, .82);--lesson-heart-pill-border: rgba(255, 145, 160, .44);--lesson-heart-pill-text: #ff6f88;height:100vh;height:100dvh;max-height:100dvh;overflow:hidden;background:var(--lesson-bg);color:var(--lesson-text-color);display:grid;grid-template-rows:auto 1fr auto;gap:var(--layout-lesson-shell-gap, .8rem);padding:var(--layout-lesson-shell-padding-top, .95rem) clamp(.9rem,2.6vw,2.2rem) var(--layout-lesson-shell-padding-bottom, 1.25rem);animation:lessonShellEnter .4s ease-out}[data-theme=dark] .lesson-shell{--lesson-bg: radial-gradient(clamp(1104px, calc(1200px + .8vw) , 1392px) clamp(478.4px, calc(520px + .8vw) , 603.2px) at 50% clamp(-185.6px, calc(-160px - .8vw) , -147.2px), color-mix(in srgb, var(--accent) 30%, transparent), transparent 68%), linear-gradient(160deg, #061b26 0%, #082434 45%, #0a2a3a 100%);--lesson-text-color: #e9f6ff;--lesson-muted-color: #c6dbe8;--lesson-border-soft: rgba(180, 209, 223, .26);--lesson-border-strong: rgba(190, 217, 233, .36);--lesson-surface: linear-gradient(165deg, rgba(0, 13, 23, .56), rgba(6, 31, 44, .8));--lesson-surface-strong: rgba(3, 20, 31, .92);--lesson-topbar-button-bg: rgba(0, 0, 0, .23);--lesson-ghost-bg: rgba(3, 20, 31, .5);--lesson-choice-bg: rgba(11, 38, 53, .78);--lesson-progress-track: rgba(143, 174, 194, .24);--lesson-progress-label-color: var(--accent);--lesson-overlay: rgba(4, 16, 24, .95);--lesson-heart-pill-bg: rgba(23, 3, 10, .42);--lesson-heart-pill-border: rgba(255, 145, 160, .44);--lesson-heart-pill-text: #ff8ea0}.lesson-shell.lesson-reduced-motion *{animation:none!important;transition:none!important}.lesson-shell-loading{display:grid;place-items:center}.lesson-loading-card{border:1px solid var(--lesson-border-soft);background:var(--lesson-surface-strong);padding:1rem 1.2rem}.lesson-topbar{display:grid;grid-template-columns:auto minmax(0,1fr) auto;align-items:center;gap:.85rem}.lesson-close-btn{width:auto;height:auto;min-width:0;min-height:0;padding:0;border-radius:0;border:0!important;background:transparent!important;color:var(--lesson-text-color);cursor:pointer;display:inline-flex;align-items:center;justify-content:center;line-height:1;box-shadow:none!important;transition:transform .16s ease}.lesson-close-btn:hover{transform:none}.lesson-close-btn:active{transform:translateY(0)}.lesson-close-btn svg{display:block;width:clamp(24.84px,calc(27px + .54vw),31.32px);height:clamp(24.84px,calc(27px + .54vw),31.32px)}.lesson-progress-wrap{position:relative;min-height:2.75rem;display:grid;align-content:center}.lesson-progress-track{position:absolute;inset:.82rem 0;border-radius:999px;background:var(--lesson-progress-track);overflow:hidden}.lesson-progress-fill{position:absolute;inset:.82rem auto .82rem 0;width:var(--lesson-progress, 0%);border-radius:999px;background:linear-gradient(90deg,#95d929,#8ccf1f);box-shadow:0 0 0 1px #a3e83533,0 0 14px -5px #9ae331d1;transition:width .28s ease}.lesson-progress-label{position:relative;z-index:1;justify-self:center;font-family:DM Mono,monospace;letter-spacing:.08em;font-size:clamp(.714rem,calc(.76rem + .167vw),.851rem);color:var(--lesson-progress-label-color);font-weight:700;text-transform:uppercase}.lesson-stat-pill{min-width:4rem;border:1px solid var(--lesson-heart-pill-border);background:var(--lesson-heart-pill-bg);color:var(--lesson-heart-pill-text);border-radius:999px;padding:.42rem .72rem;display:inline-flex;align-items:center;gap:.45rem;justify-content:center;font-size:clamp(.94rem,calc(1rem + .22vw),1.12rem)}.lesson-review-pill{border:1px solid color-mix(in srgb,#a96e06 72%,var(--lesson-border-strong));background:color-mix(in srgb,#c8840e 26%,var(--lesson-topbar-button-bg));color:var(--lesson-text-color);border-radius:999px;padding:.38rem .64rem;font-size:clamp(.686rem,calc(.73rem + .161vw),.818rem);font-weight:700;letter-spacing:.02em;white-space:nowrap}.lesson-topbar-right{display:inline-flex;align-items:center;gap:.45rem}@container (max-width: 42rem){.lesson-topbar{grid-template-columns:1fr;gap:.5rem}.lesson-topbar>[aria-hidden=true]{display:none}.lesson-progress-wrap{order:2}.lesson-topbar-right{order:1;width:100%;justify-content:flex-start}.lesson-topbar-right .lesson-close-btn{margin-left:auto}.lesson-choice-grid{grid-template-columns:1fr!important}}@media(min-width:861px){.course-player-topbar,.cloze-player-topbar,.repetition-player-topbar{position:relative;display:flex;align-items:center;width:100%;min-height:2.75rem}.course-player-topbar>[aria-hidden=true],.cloze-player-topbar>[aria-hidden=true],.repetition-player-topbar>[aria-hidden=true]{display:none}.course-player-topbar .lesson-progress-wrap,.cloze-player-topbar .lesson-progress-wrap,.repetition-player-topbar .lesson-progress-wrap{position:absolute;left:50%;transform:translate(-50%);width:min(66%,clamp(699.2px,calc(760px + .8vw),881.6px));max-width:calc(100% - 24rem);z-index:1}.course-player-topbar .lesson-topbar-right,.cloze-player-topbar .lesson-topbar-right,.repetition-player-topbar .lesson-topbar-right{width:100%;min-width:0;justify-content:flex-start;z-index:2}.course-player-topbar .lesson-topbar-right .lesson-close-btn,.cloze-player-topbar .lesson-topbar-right .lesson-close-btn,.repetition-player-topbar .lesson-topbar-right .lesson-close-btn{margin-left:auto}}.lesson-audio-btn{width:clamp(35.88px,calc(39px + .34vw),41px);height:clamp(35.88px,calc(39px + .34vw),41px);border-radius:var(--radius-ui);position:relative}.lesson-topbar .lesson-audio-btn,.lesson-topbar .lesson-audio-btn:hover,.lesson-topbar .lesson-audio-btn:active,.lesson-topbar .lesson-audio-btn[aria-pressed=true],.lesson-topbar .lesson-audio-btn[aria-pressed=true]:hover,.lesson-topbar .lesson-audio-btn[aria-pressed=true]:active{border:1px solid var(--lesson-border-strong);background:var(--lesson-topbar-button-bg);color:var(--lesson-text-color)}.lesson-topbar .lesson-audio-btn:active,.lesson-topbar .lesson-audio-btn[aria-pressed=true]:active{transform:translateY(0)}.lesson-audio-btn.is-inactive:after{content:"";position:absolute;left:50%;top:50%;width:1.45rem;height:2px;background:var(--danger);transform:translate(-50%,-50%) rotate(45deg);opacity:.92;z-index:1;pointer-events:none}.lesson-theme-btn{width:clamp(35.88px,calc(39px + .34vw),41px);height:clamp(35.88px,calc(39px + .34vw),41px);border-radius:var(--radius-ui);border:1px solid var(--lesson-border-strong);background:var(--lesson-topbar-button-bg);color:var(--lesson-text-color);cursor:pointer;font-size:clamp(.865rem,calc(.92rem + .202vw),1.03rem);display:inline-flex;align-items:center;justify-content:center}.lesson-accent-toggle-btn{min-height:var(--ui-control-md);padding:.42rem .82rem;border-radius:999px;border:1px solid var(--lesson-border-strong);background:var(--lesson-topbar-button-bg);color:var(--lesson-text-color);cursor:pointer;font-size:clamp(.752rem,calc(.8rem + .176vw),.896rem);font-weight:700;letter-spacing:.01em;white-space:nowrap;transition:transform .16s ease,background-color .16s ease,border-color .16s ease,opacity .16s ease}.lesson-accent-toggle-btn:hover:not(:disabled){transform:none}.lesson-accent-toggle-btn.active{background:color-mix(in srgb,var(--accent) 18%,var(--lesson-topbar-button-bg));border-color:color-mix(in srgb,var(--accent) 46%,var(--lesson-border-strong))}.lesson-accent-toggle-btn:disabled{cursor:wait;opacity:.68}.lesson-report-floating-btn{position:fixed;left:max(1.5rem,env(safe-area-inset-left));bottom:calc(2.2rem + env(safe-area-inset-bottom));width:2.45rem;height:2.45rem;border-radius:999px;border:1px solid var(--lesson-border-strong);background:var(--lesson-topbar-button-bg);color:var(--lesson-text-color);cursor:pointer;display:inline-flex;align-items:center;justify-content:center;z-index:3950;transition:transform .16s ease,border-color .16s ease,background-color .16s ease,box-shadow .16s ease}.course-player-shell .lesson-bottom-quick-actions{position:fixed;left:max(.75rem,env(safe-area-inset-left));right:max(1rem,env(safe-area-inset-right));bottom:calc(4.45rem + env(safe-area-inset-bottom));display:flex;align-items:center;justify-content:flex-start;gap:.6rem;z-index:3950;pointer-events:none}.course-player-shell .lesson-bottom-quick-actions>*{pointer-events:auto}.course-player-shell .lesson-bottom-hint-btn{min-height:2.45rem;min-width:clamp(121.44px,calc(132px + .8vw),153.12px);margin:0}.course-player-shell .lesson-bottom-quick-actions .lesson-report-floating-btn.lesson-bottom-report-btn{position:static;left:auto;bottom:auto!important}.lesson-report-floating-btn:hover:not(:disabled){transform:none;border-color:color-mix(in srgb,var(--lesson-border-strong) 74%,var(--accent))}.lesson-report-floating-btn:active:not(:disabled){transform:translateY(0)}.lesson-report-floating-btn:disabled{cursor:not-allowed;opacity:.58}.lesson-report-floating-btn .report-flag-icon{width:1.15rem;height:1.15rem}.lesson-main{display:grid;place-items:center;min-height:0;position:relative;overflow-y:auto;overflow-x:hidden;padding:.5rem 0}.lesson-stage{width:min(clamp(772.8px,calc(840px + .8vw),974.4px),95vw);display:grid;gap:.62rem;justify-items:center;position:relative}.course-lesson-shell .lesson-stage{gap:.75rem}.lesson-card{width:100%;padding:clamp(1rem,3vw,2rem);display:grid;gap:1rem}.lesson-prompt{margin:0;font-size:clamp(1.35rem,2.8vw,2.35rem);line-height:1.2;color:var(--lesson-text-color);text-align:center;width:min(clamp(699.2px,calc(760px + .8vw),881.6px),100%);justify-self:center}.lesson-pronunciation-line{margin:0;width:min(clamp(699.2px,calc(760px + .8vw),881.6px),100%);text-align:center;font-size:clamp(1rem,2vw,1.28rem);line-height:1.35;color:color-mix(in srgb,var(--lesson-text-color) 74%,var(--accent) 26%)}.lesson-translate-prompt{width:min(clamp(699.2px,calc(760px + .8vw),881.6px),100%);display:grid;gap:.55rem;padding-top:4rem;justify-items:center;text-align:center}.lesson-translate-instruction{margin:0;font-family:DM Mono,monospace;letter-spacing:.1em;text-transform:uppercase;font-size:clamp(.733rem,calc(.78rem + .172vw),.874rem);color:color-mix(in srgb,var(--lesson-text-color) 58%,transparent)}.lesson-translate-target{margin:0;font-size:clamp(1.6rem,3.4vw,2.8rem);line-height:1.15;color:var(--lesson-text-color)}.lesson-translate-scene{width:min(clamp(331.2px,calc(360px + .8vw),417.6px),100%);display:grid;grid-template-columns:auto 1fr;align-items:end;justify-content:center;gap:.72rem;margin-top:.25rem}.lesson-translate-avatar{width:clamp(60.72px,calc(66px + .8vw),76.56px);height:clamp(60.72px,calc(66px + .8vw),76.56px);fill:color-mix(in srgb,var(--lesson-text-color) 74%,transparent);opacity:.95}.lesson-translate-bubble{justify-self:start;border:1px solid var(--lesson-border-soft);background:var(--lesson-ghost-bg);color:var(--lesson-text-color);border-radius:var(--radius-ui);padding:.45rem .65rem;font-size:clamp(.912rem,calc(.97rem + .213vw),1.086rem);line-height:1.3;position:relative}.lesson-translate-bubble:before{content:"";position:absolute;left:clamp(-9.8px,calc(-8px - .16vw),-7px);bottom:clamp(10px,calc(11px + .22vw),12.8px);width:clamp(11px,calc(12px + .24vw),13.92px);height:clamp(11px,calc(12px + .24vw),13.92px);background:inherit;border-left:1px solid var(--lesson-border-soft);border-bottom:1px solid var(--lesson-border-soft);transform:rotate(45deg)}.lesson-choice-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:.78rem;width:min(clamp(699.2px,calc(760px + .8vw),881.6px),100%)}.lesson-choice-grid>.lesson-choice-card:only-child,.lesson-choice-grid>.lesson-choice-card:last-child:nth-child(odd){grid-column:1 / -1}.lesson-choice-card{border:1px solid var(--lesson-border-soft);background:var(--lesson-choice-bg);color:var(--lesson-text-color);min-height:clamp(106.72px,calc(116px + .8vw),134.56px);display:grid;align-content:center;gap:.45rem;justify-items:center;padding:.7rem;cursor:pointer;position:relative;transition:transform .16s ease,border-color .16s ease,background .16s ease}.lesson-choice-card:hover{transform:translateY(-1px);border-color:#d3eeffa8}.lesson-choice-card.selected{border-color:#76cfffd1;background:#0b2c3cd1}.lesson-choice-card.correct{border-color:#91e541eb;background:#194315a8;box-shadow:0 0 0 1px #8cdd3c6b inset}.lesson-choice-card.wrong{border-color:#ff7789eb;background:#5815229e;animation:lessonWrongShake .24s ease}.lesson-choice-number{position:absolute;top:.6rem;left:.75rem;font-family:DM Mono,monospace;font-size:clamp(.771rem,calc(.82rem + .18vw),.918rem);font-weight:500;color:var(--muted);opacity:.85}.lesson-choice-icon{font-size:clamp(1.457rem,calc(1.55rem + .341vw),1.736rem)}.lesson-choice-label{font-size:clamp(1.203rem,calc(1.28rem + .282vw),1.434rem)}.lesson-choice-pronunciation{display:block;font-size:clamp(.893rem,calc(.95rem + .209vw),1.064rem);line-height:1.25;color:color-mix(in srgb,var(--lesson-text-color) 72%,var(--accent) 28%)}.lesson-input-stack{display:grid;gap:.8rem;width:min(clamp(699.2px,calc(760px + .8vw),881.6px),100%);align-content:start}.lesson-toggle-row{display:flex;justify-content:flex-end;align-items:center;width:100%;min-height:clamp(35.88px,calc(39px + .64vw),43.2px)}.lesson-toggle-btn{border:1px solid var(--lesson-border-soft);background:var(--lesson-ghost-bg);color:var(--lesson-text-color);font-family:DM Mono,monospace;letter-spacing:.04em;font-size:clamp(.884rem,calc(.94rem + .207vw),1.053rem);text-transform:uppercase;padding:.34rem .5rem;min-width:clamp(146.28px,calc(159px + .72vw),184.92px);min-height:clamp(33.12px,calc(36px + .64vw),41.76px);display:inline-flex;align-items:center;justify-content:center;cursor:pointer;margin-left:5rem}.lesson-toggle-btn.active{border-color:var(--accent);color:var(--accent)}.lesson-wordbank-answer{min-height:3.2rem;border:1px solid var(--lesson-border-soft);background:var(--lesson-ghost-bg);padding:.45rem;display:flex;flex-wrap:wrap;align-items:center;align-content:center;justify-content:flex-start;gap:.42rem;width:100%;text-align:left;cursor:text}.lesson-wordbank-answer.correct{border-color:#91e541eb;background:#194315a8;box-shadow:0 0 0 1px #8cdd3c6b inset}.lesson-wordbank-answer.empty{justify-content:center;text-align:center;cursor:default}.lesson-wordbank-answer.empty .lesson-wordbank-insert-slot{display:none}.lesson-wordbank-grid{display:flex;flex-wrap:wrap;justify-content:center;align-content:flex-start;gap:.5rem;width:100%;min-height:clamp(75.44px,calc(82px + .8vw),95.12px)}.lesson-wordbank-chip{border:1px solid var(--lesson-border-soft);background:var(--lesson-ghost-bg);color:var(--lesson-text-color);font-size:clamp(1.41rem,calc(1.5rem + .33vw),1.68rem);padding:.4rem .62rem;display:inline-flex;align-items:center;gap:.4rem;cursor:pointer}.lesson-wordbank-chip.selected{border-color:#7cd7ffc7;color:#9be2ff}.lesson-wordbank-chip.selected-token{cursor:pointer}.course-player-shell .course-player-word-choice-chip{transition:transform .16s ease,border-color .16s ease,background .16s ease}.course-player-shell .course-player-word-choice-chip.selected{border-color:#76cfffd1;background:#0b2c3cd1;color:var(--lesson-text-color)}.course-player-shell .course-player-word-choice-chip.correct{border-color:#91e541eb;background:#194315a8;box-shadow:0 0 0 1px #8cdd3c6b inset}.course-player-shell .course-player-word-choice-chip.wrong{border-color:#ff7789eb;background:#5815229e;animation:lessonWrongShake .24s ease}.lesson-wordbank-insert-slot{width:.55rem;min-height:2.15rem;padding:0;border:0;background:transparent;position:relative;cursor:text}.lesson-wordbank-insert-slot:after{content:"";position:absolute;inset:.18rem 50%;width:2px;transform:translate(-50%);border-radius:999px;background:#7cd7ff47;opacity:0;transition:opacity .12s ease,background-color .12s ease}.lesson-wordbank-answer:hover .lesson-wordbank-insert-slot:after,.lesson-wordbank-insert-slot.active:after{opacity:1}.lesson-wordbank-insert-slot.active:after{background:#9be2ff}.lesson-reveal-actions{display:flex;justify-content:center;align-items:center;gap:.55rem;flex-wrap:wrap;min-height:clamp(40.48px,calc(44px + .8vw),51.04px);width:100%}.lesson-reveal-btn{min-width:clamp(154.56px,calc(168px + .8vw),194.88px);display:inline-flex;align-items:center;justify-content:center;gap:.45rem}.lesson-reveal-icon{width:1rem;height:1rem;flex:0 0 auto}.lesson-card input{min-height:clamp(46px,calc(50px + .8vw),58px);font-size:clamp(1.081rem,calc(1.15rem + .253vw),1.288rem);border-color:var(--lesson-border-soft);background:var(--lesson-ghost-bg);color:var(--lesson-text-color);width:min(clamp(588.8px,calc(640px + .8vw),742.4px),100%);justify-self:center}.lesson-card input::placeholder{color:color-mix(in srgb,var(--lesson-text-color) 45%,transparent)}.lesson-answer-input{transition:border-color .16s ease,background-color .16s ease}.lesson-answer-input.correct{border-color:#91e541eb!important;background:#194315a8!important;box-shadow:0 0 0 1px #8cdd3c6b inset}.course-player-shell .lesson-input-stack{grid-template-columns:minmax(0,1fr) auto;align-items:stretch}.course-player-shell .lesson-input-stack>.lesson-toggle-row{grid-column:2;grid-row:1;width:auto;min-height:0}.course-player-shell .lesson-input-stack>.lesson-wordbank-answer,.course-player-shell .lesson-input-stack>.lesson-answer-input{grid-column:1;grid-row:1;width:100%;justify-self:stretch}.course-player-shell .lesson-input-stack>.lesson-wordbank-grid{grid-column:1 / -1;grid-row:2}.course-player-shell .lesson-input-stack>.lesson-reveal-actions{grid-column:1 / -1;grid-row:3}.course-player-shell .lesson-input-stack>.lesson-toggle-row 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0rem}.course-player-choice-grid{justify-self:center;width:min(var(--course-choice-grid-max-width),100%);gap:var(--course-choice-grid-gap)}.course-player-choice-grid .course-player-choice-card{border-radius:var(--radius-ui);min-height:var(--course-choice-card-min-height)}.course-player-choice-grid.course-player-choice-grid--cloze .course-player-choice-card{border-width:2px;border-color:color-mix(in srgb,var(--accent) 72%,var(--lesson-border-soft))}.course-player-choice-grid.course-player-choice-grid--cloze .course-player-choice-card:hover{border-color:color-mix(in srgb,var(--accent) 84%,transparent)}.course-player-choice-grid .lesson-choice-label{font-size:clamp(1.24rem,2.2vw,1.55rem);text-align:center;line-height:1.22;text-transform:lowercase}.course-player-choice-grid.course-player-choice-grid--caps .lesson-choice-label{text-transform:none}.course-player-choice-grid .lesson-choice-number{color:var(--muted)}html[data-shell=compact] .course-player-shell{--course-player-mascot-size: clamp(73.6px, calc(80px + .8vw) , 92.8px);--course-player-mascot-offset-y: clamp(-58px, calc(-50px - .8vw) , -46px);--course-player-mascot-headroom: clamp(64.4px, calc(70px + .8vw) , 81.2px);--course-player-stage-offset-y: clamp(-23.2px, calc(-20px - .4vw) , -18.4px);padding-block:1.3rem;padding-inline:.35rem!important}html[data-shell=compact] .course-player-shell .lesson-main.course-player-main{display:grid!important;align-items:center!important;justify-items:stretch!important;padding-top:var(--course-player-mascot-headroom, 0px)!important;padding-bottom:0!important}html[data-shell=compact] .course-player-shell .course-player-stage{min-height:calc(100% - var(--course-player-mascot-headroom, 0px));width:100%!important;justify-self:stretch!important;grid-template-columns:minmax(0,1fr)!important;justify-items:stretch!important;align-content:center;transform:translateY(var(--course-player-stage-offset-y))}html[data-shell=compact] .course-player-shell 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var(--theme-input-border-color);border-radius:12px;background:var(--theme-input-bg);background-clip:padding-box;font-weight:600;box-shadow:var(--theme-input-shadow)}[data-ui-theme=swiss] .popup-select-trigger{border-width:var(--theme-popup-select-border-width);border-color:var(--theme-popup-select-border-color);background:var(--theme-popup-select-bg);box-shadow:var(--theme-popup-select-shadow)}[data-ui-theme=swiss] input:not([type=radio]):not([type=checkbox]):not([type=range]):focus,[data-ui-theme=swiss] textarea:focus,[data-ui-theme=swiss] .popup-select-trigger.open{outline:none;border-color:var(--theme-input-focus-border-color);background:var(--theme-input-bg);box-shadow:var(--theme-input-focus-shadow)}[data-ui-theme=swiss] input[type=radio],[data-ui-theme=swiss] input[type=checkbox]{border:1px solid var(--text);box-shadow:none;background:var(--panel)}[data-ui-theme=swiss] .context-menu{border:1px solid var(--text);box-shadow:2px 2px 0 0 var(--text)}[data-ui-theme=swiss] .context-menu-item{border:1px solid transparent;font-weight:700}[data-ui-theme=swiss] .context-menu-item:hover{border-color:var(--text)}[data-ui-theme=swiss] .user-menu .user-menu-popover,:root[data-ui-theme=swiss] .user-menu-popover{border:1px solid var(--text);border-radius:12px;background:var(--panel);box-shadow:2px 2px 0 0 var(--text);z-index:1250}[data-ui-theme=swiss] .user-menu .user-menu-name,:root[data-ui-theme=swiss] .user-menu-name{border-bottom:1px solid var(--text);color:var(--muted);font-weight:700}[data-ui-theme=swiss] .user-menu .user-menu-item,:root[data-ui-theme=swiss] .user-menu-item{border:1px solid transparent;font-weight:700;text-transform:uppercase;letter-spacing:.04em}[data-ui-theme=swiss] .user-menu .user-menu-item:hover,:root[data-ui-theme=swiss] .user-menu-item:hover{border-color:var(--text)}[data-ui-theme=swiss] .notes-page{border:1px solid var(--text)}[data-ui-theme=swiss] .cloze-mode-shell,[data-ui-theme=swiss] .notes-page{border:none!important}[data-ui-theme=swiss] .playground-overview-mode{border:4px solid var(--text);border-radius:14px}[data-ui-theme=swiss] .panel,[data-ui-theme=swiss] .topbar{background:transparent;background-color:transparent}[data-ui-theme=swiss] .reading-sidebar,[data-ui-theme=swiss] .reading-viewer:not(.reading-viewer-mobile-fullscreen),[data-ui-theme=swiss] .notes-page,[data-ui-theme=swiss] .notes-list-panel,[data-ui-theme=swiss] .notes-editor-panel,[data-ui-theme=swiss] .cloze-mode-shell,[data-ui-theme=swiss] .cloze-setup-panel,[data-ui-theme=swiss] .cloze-player-shell,[data-ui-theme=swiss] .repetition-player-shell,[data-ui-theme=swiss] .repetition-empty-state-card{border:none!important;box-shadow:none!important}:root[data-ui-theme=bauhaus]{--bg: #f5f5dc;--bg-soft: #ffffff;--panel: #ffffff;--panel-border: #000000;--text: #000000;--accent: #e32636;--bauhaus-blue: #1d5499;--bauhaus-green: #1c8a3a;--bauhaus-yellow: #ffcc00;--muted: #555555;--success: #1c8a3a;--danger: #e32636;--theme-btn-border-width: 1px;--theme-btn-border-color: var(--text);--theme-btn-shadow: 6px 6px 0 0 var(--text);--theme-btn-hover-shadow: 4px 4px 0 0 var(--text);--theme-btn-active-shadow: 4px 4px 0 0 var(--accent);--theme-btn-primary-border-color: var(--text);--theme-btn-primary-shadow-hover: 4px 4px 0 0 var(--text);--theme-btn-ghost-border-color: var(--text);--theme-btn-ghost-hover-border-color: var(--accent);--theme-sidebar-link-border-width: 1px;--theme-sidebar-link-border-color: var(--text);--theme-sidebar-link-bg: var(--bg-soft);--theme-sidebar-link-shadow: 6px 6px 0 0 var(--text);--theme-sidebar-link-hover-border-color: var(--accent);--theme-sidebar-link-hover-bg: var(--bg-soft);--theme-sidebar-link-hover-shadow: 4px 4px 0 0 var(--text);--theme-sidebar-link-active-border-color: var(--accent);--theme-sidebar-link-active-shadow: 4px 4px 0 0 var(--accent);--theme-input-border-width: 4px;--theme-input-border-color: var(--text);--theme-input-bg: var(--bg-soft);--theme-input-shadow: inset 4px 4px 0 0 rgba(0, 0, 0, .05);--theme-input-focus-border-color: var(--accent);--theme-input-focus-shadow: none;--theme-popup-select-border-width: 1px;--theme-popup-select-border-color: var(--text);--theme-popup-select-bg: var(--bg-soft);--theme-popup-select-shadow: inset 1px 1px 0 0 rgba(0, 0, 0, .05);--theme-popup-select-hover-border-color: var(--text);--theme-popup-select-open-border-color: var(--accent);--theme-popup-select-open-shadow: none;--theme-tab-border-bottom-width: 4px;--theme-tab-border-color: var(--text);--theme-tab-bg: var(--bg-soft);--theme-tab-shadow: 6px 6px 0 0 var(--text);--theme-tab-active-border-color: var(--accent);--theme-tab-active-bg: var(--accent);--theme-tab-active-shadow: 4px 4px 0 0 var(--accent)}:root[data-ui-theme=bauhaus][data-theme=dark]{--bg: #14161c;--bg-soft: #1d222b;--panel: #181d25;--panel-border: #c8d0df;--text: #dce3f0;--accent: #ff6555;--bauhaus-blue: #72a9ff;--bauhaus-green: #6fd18e;--bauhaus-yellow: #ffd85a;--muted: #b4bfd3;--success: #6fd18e;--danger: #ff6555;--theme-btn-shadow: 6px 6px 0 0 color-mix(in srgb, var(--bauhaus-blue) 64%, #0b111b);--theme-btn-hover-shadow: 4px 4px 0 0 color-mix(in srgb, var(--bauhaus-blue) 64%, #0b111b);--theme-btn-active-shadow: 4px 4px 0 0 color-mix(in srgb, var(--bauhaus-blue) 74%, var(--accent));--theme-btn-primary-shadow-hover: 4px 4px 0 0 color-mix(in srgb, var(--bauhaus-blue) 64%, #0b111b);--theme-sidebar-link-shadow: 6px 6px 0 0 color-mix(in srgb, var(--bauhaus-blue) 64%, #0b111b);--theme-sidebar-link-hover-shadow: 4px 4px 0 0 color-mix(in srgb, var(--bauhaus-blue) 64%, #0b111b);--theme-sidebar-link-active-shadow: 4px 4px 0 0 color-mix(in srgb, var(--bauhaus-blue) 74%, var(--accent));--theme-tab-shadow: 6px 6px 0 0 color-mix(in srgb, var(--bauhaus-blue) 64%, #0b111b);--theme-input-shadow: inset 3px 3px 0 0 color-mix(in srgb, var(--bauhaus-blue) 18%, transparent);--theme-input-border-width: 3px;--theme-popup-select-shadow: inset 1px 1px 0 0 color-mix(in srgb, var(--bauhaus-blue) 18%, transparent);--theme-tab-border-bottom-width: 3px;--theme-tab-active-shadow: 4px 4px 0 0 color-mix(in srgb, var(--bauhaus-blue) 74%, var(--accent))}[data-ui-theme=bauhaus] body{font-family:Verdana,Segoe UI,Helvetica Neue,Arial,sans-serif;background-color:var(--bg);color:var(--text);letter-spacing:.02em}[data-ui-theme=bauhaus] h1,[data-ui-theme=bauhaus] h2,[data-ui-theme=bauhaus] h3,[data-ui-theme=bauhaus] h4{font-weight:800;text-transform:uppercase;letter-spacing:.1em}[data-ui-theme=bauhaus] .topbar{border-bottom:6px solid var(--text);align-items:flex-end}[data-ui-theme=bauhaus] .eyebrow{background:transparent;color:var(--text);display:inline;font-weight:700;text-transform:uppercase}[data-ui-theme=bauhaus] .panel{border:1px solid var(--text);border-radius:var(--radius-ui);background:var(--panel);box-shadow:var(--theme-sidebar-link-shadow);position:relative}[data-ui-theme=bauhaus] .panel:after{content:"";position:absolute;top:-10px;right:-10px;width:20px;height:20px;background-color:var(--accent);border:1px solid var(--text);border-radius:50%;clip-path:inset(10px 10px 0 0);pointer-events:none}[data-ui-theme=bauhaus] .btn,[data-ui-theme=bauhaus] .icon-btn{border:var(--theme-btn-border-width) solid var(--theme-btn-border-color);border-radius:var(--radius-ui);background:var(--bg-soft);color:var(--text);font-weight:800;text-transform:uppercase;transition:transform .1s;box-shadow:var(--theme-btn-shadow)}[data-ui-theme=bauhaus] .btn.primary{background:var(--accent);color:#fff}[data-ui-theme=bauhaus] .btn.primary:hover:not(:disabled){background:var(--accent);color:#fff;border-color:var(--theme-btn-primary-border-color);box-shadow:4px 4px 0 0 var(--text)}[data-ui-theme=bauhaus] .cloze-setup-actions .btn.primary,[data-ui-theme=bauhaus] .cloze-result-actions .btn.primary{background:var(--accent);color:#fff;border-color:var(--theme-btn-primary-border-color)}[data-ui-theme=bauhaus] .cloze-setup-actions .btn.primary:hover:not(:disabled),[data-ui-theme=bauhaus] .cloze-result-actions .btn.primary:hover:not(:disabled){background:var(--accent);color:#fff;border-color:var(--theme-btn-primary-border-color);box-shadow:var(--theme-btn-primary-shadow-hover)}[data-ui-theme=bauhaus] .btn:hover,[data-ui-theme=bauhaus] .icon-btn:hover{transform:none;box-shadow:var(--theme-btn-hover-shadow)}[data-ui-theme=bauhaus] .global-sidebar-link,[data-ui-theme=bauhaus] .global-sidebar-subnav-link,[data-ui-theme=bauhaus] .global-playground-link{border:var(--theme-sidebar-link-border-width) solid var(--theme-sidebar-link-border-color);background:var(--theme-sidebar-link-bg);box-shadow:var(--theme-sidebar-link-shadow);transition:transform .1s ease,border-color .14s ease,box-shadow .14s ease,background-color .14s ease}[data-ui-theme=bauhaus] .global-sidebar-main{padding-right:.5rem}[data-ui-theme=bauhaus] .global-sidebar-link:hover,[data-ui-theme=bauhaus] .global-sidebar-subnav-link:hover,[data-ui-theme=bauhaus] .global-playground-link:hover{transform:none;box-shadow:var(--theme-sidebar-link-hover-shadow)}[data-ui-theme=bauhaus] .global-sidebar-link.active,[data-ui-theme=bauhaus] .global-sidebar-subnav-link.active,[data-ui-theme=bauhaus] .global-playground-link.active{border-color:var(--theme-sidebar-link-active-border-color);box-shadow:var(--theme-sidebar-link-active-shadow)}[data-ui-theme=bauhaus] .btn:active,[data-ui-theme=bauhaus] .icon-btn:active,[data-ui-theme=bauhaus] .user-menu-trigger:active,[data-ui-theme=bauhaus] .theme-toggle:active,[data-ui-theme=bauhaus] .global-sidebar-link:active,[data-ui-theme=bauhaus] .global-sidebar-subnav-link:active,[data-ui-theme=bauhaus] .global-playground-link:active,[data-ui-theme=bauhaus] .tab:active,[data-ui-theme=bauhaus] .playground-tab:active,[data-ui-theme=bauhaus] .settings-tab-button:active,[data-ui-theme=bauhaus] .mode-setup-segment:active,[data-ui-theme=bauhaus] .playground-card:active,[data-ui-theme=bauhaus] .document-row:active,[data-ui-theme=bauhaus] .chat-thread-item:active,[data-ui-theme=bauhaus] .context-menu-item:active,[data-ui-theme=bauhaus] .user-menu .user-menu-item:active,:root[data-ui-theme=bauhaus] .user-menu-item:active,[data-ui-theme=bauhaus] .popup-select-trigger:active,[data-ui-theme=bauhaus] .cloze-difficulty-chip:active,[data-ui-theme=bauhaus] .cloze-count-chip:active,[data-ui-theme=bauhaus] .lesson-choice-card:active{transform:translate(6px,6px);box-shadow:var(--theme-btn-active-shadow)}[data-ui-theme=bauhaus] .btn[aria-pressed]:active,[data-ui-theme=bauhaus] .icon-btn[aria-pressed]:active{transform:translate(6px,6px);box-shadow:var(--theme-btn-active-shadow)}[data-ui-theme=bauhaus] .lesson-topbar .lesson-close-btn,[data-ui-theme=bauhaus] .lesson-topbar .lesson-theme-btn,[data-ui-theme=bauhaus] .lesson-topbar .lesson-audio-btn,[data-ui-theme=bauhaus] .lesson-report-floating-btn{border:1px solid var(--text);border-radius:var(--radius-ui);background:var(--panel);color:var(--text);box-shadow:var(--theme-btn-shadow)}[data-ui-theme=bauhaus] .lesson-topbar .lesson-audio-btn,[data-ui-theme=bauhaus] .lesson-topbar .lesson-audio-btn:hover,[data-ui-theme=bauhaus] .lesson-topbar .lesson-audio-btn:active{border-color:var(--text)!important;background:var(--panel)!important;color:var(--text)!important;box-shadow:var(--theme-btn-shadow)!important}[data-ui-theme=bauhaus] .lesson-topbar .lesson-audio-btn[aria-pressed=true],[data-ui-theme=bauhaus] .lesson-topbar .lesson-audio-btn[aria-pressed=true]:hover,[data-ui-theme=bauhaus] .lesson-topbar .lesson-audio-btn[aria-pressed=true]:active{border-color:var(--text)!important;background:var(--panel)!important;color:var(--text)!important;box-shadow:var(--theme-btn-active-shadow)!important}[data-ui-theme=bauhaus] .lesson-topbar .lesson-close-btn{background:color-mix(in srgb,var(--accent) 18%,var(--panel));font-weight:800;color:#fff}[data-ui-theme=bauhaus] .lesson-topbar .lesson-close-btn:hover,[data-ui-theme=bauhaus] .lesson-topbar .lesson-theme-btn:hover,[data-ui-theme=bauhaus] .lesson-topbar .lesson-audio-btn:hover,[data-ui-theme=bauhaus] .lesson-report-floating-btn:hover{transform:none;box-shadow:var(--theme-btn-hover-shadow)}[data-ui-theme=bauhaus] .lesson-topbar .lesson-close-btn:active,[data-ui-theme=bauhaus] .lesson-topbar .lesson-theme-btn:active,[data-ui-theme=bauhaus] .lesson-topbar .lesson-audio-btn:active,[data-ui-theme=bauhaus] .lesson-report-floating-btn:active{transform:translate(6px,6px);box-shadow:var(--theme-btn-active-shadow)}[data-ui-theme=bauhaus][data-theme=dark] .lesson-topbar .lesson-close-btn,[data-ui-theme=bauhaus][data-theme=dark] .lesson-topbar .lesson-theme-btn,[data-ui-theme=bauhaus][data-theme=dark] .lesson-topbar .lesson-audio-btn,[data-ui-theme=bauhaus][data-theme=dark] .lesson-report-floating-btn{box-shadow:var(--theme-btn-shadow)}[data-ui-theme=bauhaus][data-theme=dark] .lesson-topbar .lesson-audio-btn,[data-ui-theme=bauhaus][data-theme=dark] .lesson-topbar .lesson-audio-btn:hover,[data-ui-theme=bauhaus][data-theme=dark] .lesson-topbar .lesson-audio-btn:active{border-color:var(--text)!important;background:var(--panel)!important;color:var(--text)!important;box-shadow:var(--theme-btn-shadow)!important}[data-ui-theme=bauhaus][data-theme=dark] .lesson-topbar .lesson-audio-btn[aria-pressed=true],[data-ui-theme=bauhaus][data-theme=dark] .lesson-topbar .lesson-audio-btn[aria-pressed=true]:hover,[data-ui-theme=bauhaus][data-theme=dark] .lesson-topbar .lesson-audio-btn[aria-pressed=true]:active{border-color:var(--text)!important;background:var(--panel)!important;color:var(--text)!important;box-shadow:var(--theme-btn-active-shadow)!important}[data-ui-theme=bauhaus] .selection-action-btn{border:1px solid var(--text);border-radius:var(--radius-ui);background:var(--bg-soft);color:var(--text);box-shadow:var(--theme-btn-shadow)}[data-ui-theme=bauhaus] .selection-action-btn.primary{background:var(--accent);color:#fff}[data-ui-theme=bauhaus] .selection-action-btn:hover:not(:disabled){transform:none;box-shadow:var(--theme-btn-hover-shadow);color:var(--text);border-color:var(--text)}[data-ui-theme=bauhaus] .selection-action-btn.primary:hover:not(:disabled){color:#fff}[data-ui-theme=bauhaus] .selection-action-btn:active:not(:disabled){transform:translate(6px,6px);box-shadow:var(--theme-btn-active-shadow)}[data-ui-theme=bauhaus] .chat-send-btn{border:1px solid var(--text);border-radius:var(--radius-ui);background:var(--accent);color:#fff;box-shadow:var(--theme-btn-shadow)}[data-ui-theme=bauhaus] .chat-send-btn:hover:not(:disabled){transform:none;border-color:var(--text);background:color-mix(in srgb,var(--accent) 85%,black 15%);box-shadow:var(--theme-btn-hover-shadow)}[data-ui-theme=bauhaus] .chat-send-btn:active:not(:disabled){transform:translate(6px,6px);box-shadow:var(--theme-btn-active-shadow)}[data-ui-theme=bauhaus][data-theme=dark] .selection-action-btn,[data-ui-theme=bauhaus][data-theme=dark] .chat-send-btn{box-shadow:var(--theme-btn-shadow)}[data-ui-theme=bauhaus] .playground-card,[data-ui-theme=bauhaus] .document-row{border:4px solid var(--text);border-radius:var(--radius-ui);background:var(--bg-soft);box-shadow:var(--theme-sidebar-link-shadow);transition:all .2s ease-in-out}[data-ui-theme=bauhaus] .playground-card:hover,[data-ui-theme=bauhaus] .document-row:hover,[data-ui-theme=bauhaus] .document-row.active{transform:none;box-shadow:var(--theme-sidebar-link-active-shadow)}[data-ui-theme=bauhaus] .tabbar{border-bottom:4px solid var(--text)}[data-ui-theme=bauhaus] .tab,[data-ui-theme=bauhaus] .playground-tab{border:var(--theme-tab-border-bottom-width) solid var(--theme-tab-border-color);border-radius:12px;font-weight:800;text-transform:uppercase;background:var(--theme-tab-bg);box-shadow:var(--theme-tab-shadow)}[data-ui-theme=bauhaus] .tab-active,[data-ui-theme=bauhaus] .playground-tab.active{background:var(--theme-tab-active-bg);color:#fff;border-color:var(--theme-tab-active-border-color);box-shadow:var(--theme-tab-active-shadow)}[data-ui-theme=bauhaus] .cloze-difficulty-chip,[data-ui-theme=bauhaus] .cloze-count-chip{border-color:var(--text);background:var(--bg-soft);box-shadow:var(--theme-btn-shadow)}[data-ui-theme=bauhaus] .cloze-difficulty-chip:hover,[data-ui-theme=bauhaus] .cloze-count-chip:hover{border-color:var(--accent);box-shadow:var(--theme-btn-hover-shadow)}[data-ui-theme=bauhaus] .cloze-difficulty-chip.active,[data-ui-theme=bauhaus] .cloze-count-chip.active,[data-ui-theme=bauhaus] .lesson-choice-card.selected{border-color:var(--accent);box-shadow:var(--theme-btn-active-shadow)}[data-ui-theme=bauhaus] input:not([type=radio]):not([type=checkbox]):not([type=range]),[data-ui-theme=bauhaus] textarea,[data-ui-theme=bauhaus] .popup-select-trigger{border:var(--theme-input-border-width) solid var(--theme-input-border-color);border-radius:12px;font-weight:700;background:var(--theme-input-bg);box-shadow:var(--theme-input-shadow)}[data-ui-theme=bauhaus] .popup-select-trigger{border-width:var(--theme-popup-select-border-width);border-color:var(--theme-popup-select-border-color);background:var(--theme-popup-select-bg);box-shadow:var(--theme-popup-select-shadow)}[data-ui-theme=bauhaus] input:not([type=radio]):not([type=checkbox]):not([type=range]):focus,[data-ui-theme=bauhaus] textarea:focus,[data-ui-theme=bauhaus] .popup-select-trigger.open{outline:none;border-color:var(--theme-input-focus-border-color);box-shadow:var(--theme-input-focus-shadow)}[data-ui-theme=bauhaus] input[type=radio],[data-ui-theme=bauhaus] input[type=checkbox]{border:1px solid var(--text);box-shadow:none;background:var(--panel)}[data-ui-theme=bauhaus] .user-menu-trigger,[data-ui-theme=bauhaus] .theme-toggle,[data-ui-theme=bauhaus] .icon-btn{border:1px solid var(--text);border-radius:50%;box-shadow:var(--theme-btn-shadow)}[data-ui-theme=bauhaus] .chat-page{border:4px solid var(--text);border-radius:var(--radius-ui);box-shadow:var(--theme-sidebar-link-shadow);background:var(--panel)}[data-ui-theme=bauhaus] .voice-page{border:0px;border-radius:var(--radius-ui);box-shadow:var(--theme-sidebar-link-shadow);background:var(--panel)}[data-ui-theme=bauhaus] .chat-sidebar{border-right:4px solid var(--text);background:var(--bg-soft)}[data-ui-theme=bauhaus] .chat-main,[data-ui-theme=bauhaus] .voice-main{background:var(--panel)}[data-ui-theme=bauhaus] .chat-thread-item{border:2px solid transparent;background:transparent}[data-ui-theme=bauhaus] .chat-thread-item:hover,[data-ui-theme=bauhaus] .chat-thread-row.active .chat-thread-item{border-color:var(--text);background:var(--panel);box-shadow:none}[data-ui-theme=bauhaus] .chat-thread-new{border:4px solid var(--text);border-radius:var(--radius-ui);box-shadow:var(--theme-sidebar-link-shadow)}[data-ui-theme=bauhaus] .voice-visualizer-shell,[data-ui-theme=bauhaus] .voice-transcript-shell,[data-ui-theme=bauhaus] .voice-wave-card,[data-ui-theme=bauhaus] .voice-turn-card{border:3px solid var(--text);background:var(--panel)}[data-ui-theme=bauhaus] .user-menu .user-menu-popover,:root[data-ui-theme=bauhaus] .user-menu-popover{border:4px solid var(--text);border-radius:var(--radius-ui);background:var(--panel);box-shadow:var(--theme-sidebar-link-shadow);min-width:184px;max-width:min(232px,calc(100vw - 24px));z-index:1250}[data-ui-theme=bauhaus] .user-menu .user-menu-name,:root[data-ui-theme=bauhaus] .user-menu-name{color:var(--muted);border-bottom:2px solid var(--text);font-weight:700;text-transform:uppercase;letter-spacing:.04em}[data-ui-theme=bauhaus] .user-menu .user-menu-item,:root[data-ui-theme=bauhaus] .user-menu-item{border:1px solid transparent;background:transparent;color:var(--text);font-weight:700;text-transform:uppercase;letter-spacing:.04em;white-space:nowrap;font-family:Verdana,Segoe UI,Helvetica Neue,Arial,sans-serif}[data-ui-theme=bauhaus] .user-menu .user-menu-item:hover,:root[data-ui-theme=bauhaus] .user-menu-item:hover{border-color:var(--text);background:color-mix(in srgb,var(--bauhaus-yellow) 24%,var(--panel))}[data-ui-theme=bauhaus] .user-menu .user-menu-item.danger,:root[data-ui-theme=bauhaus] .user-menu-item.danger{color:var(--danger)}[data-ui-theme=bauhaus] .repetition-sidebar .mode-tabs .tab,[data-ui-theme=bauhaus] .reading-sidebar .mode-tabs .tab{border:none;border-right:3px solid var(--text);padding-left:.5rem;padding-right:.5rem}[data-ui-theme=bauhaus] .repetition-sidebar .mode-tabs,[data-ui-theme=bauhaus] .reading-sidebar .mode-tabs{border:3px solid var(--text)}[data-ui-theme=bauhaus] .repetition-sidebar .mode-tabs .tab:last-child,[data-ui-theme=bauhaus] .reading-sidebar .mode-tabs .tab:last-child{border-right:none}[data-ui-theme=bauhaus] .context-menu,[data-ui-theme=bauhaus] .selection-action-menu{border:4px solid var(--text);border-radius:var(--radius-ui);box-shadow:var(--theme-sidebar-link-shadow)}[data-ui-theme=bauhaus] .context-menu-item{border:1px solid transparent;text-transform:uppercase;letter-spacing:.04em;font-weight:700}[data-ui-theme=bauhaus] .context-menu-item:hover{border-color:var(--text);background:var(--bg-soft)}[data-ui-theme=bauhaus][data-theme=dark] .tab-active,[data-ui-theme=bauhaus][data-theme=dark] .playground-tab.active{background:var(--panel-border);color:#111722}[data-ui-theme=bauhaus][data-theme=dark] .panel{box-shadow:var(--theme-sidebar-link-shadow)}[data-ui-theme=bauhaus][data-theme=dark] .btn,[data-ui-theme=bauhaus][data-theme=dark] .icon-btn{box-shadow:6px 6px color-mix(in srgb,var(--bauhaus-blue) 64%,#0b111b)}[data-ui-theme=bauhaus][data-theme=dark] .btn:hover,[data-ui-theme=bauhaus][data-theme=dark] .icon-btn:hover{box-shadow:4px 4px color-mix(in srgb,var(--bauhaus-blue) 64%,#0b111b)}[data-ui-theme=bauhaus][data-theme=dark] .btn.primary:hover:not(:disabled){background:var(--accent);color:#fff;border-color:var(--text);box-shadow:4px 4px color-mix(in srgb,var(--bauhaus-blue) 64%,#0b111b)}[data-ui-theme=bauhaus][data-theme=dark] .cloze-setup-actions .btn.primary:hover:not(:disabled),[data-ui-theme=bauhaus][data-theme=dark] .cloze-result-actions .btn.primary:hover:not(:disabled){background:var(--accent);color:#fff;border-color:var(--text);box-shadow:4px 4px color-mix(in srgb,var(--bauhaus-blue) 64%,#0b111b)}[data-ui-theme=bauhaus][data-theme=dark] .global-sidebar-link,[data-ui-theme=bauhaus][data-theme=dark] .global-sidebar-subnav-link,[data-ui-theme=bauhaus][data-theme=dark] .global-playground-link{box-shadow:6px 6px color-mix(in srgb,var(--bauhaus-blue) 64%,#0b111b)}[data-ui-theme=bauhaus][data-theme=dark] .global-sidebar-link:hover,[data-ui-theme=bauhaus][data-theme=dark] .global-sidebar-subnav-link:hover,[data-ui-theme=bauhaus][data-theme=dark] .global-playground-link:hover{box-shadow:4px 4px color-mix(in srgb,var(--bauhaus-blue) 64%,#0b111b)}[data-ui-theme=bauhaus][data-theme=dark] .global-sidebar-link.active,[data-ui-theme=bauhaus][data-theme=dark] .global-sidebar-subnav-link.active,[data-ui-theme=bauhaus][data-theme=dark] .global-playground-link.active{box-shadow:4px 4px color-mix(in srgb,var(--bauhaus-blue) 74%,var(--accent))}[data-ui-theme=bauhaus][data-theme=dark] .btn[aria-pressed]:active,[data-ui-theme=bauhaus][data-theme=dark] .icon-btn[aria-pressed]:active{transform:translate(6px,6px);box-shadow:var(--theme-btn-active-shadow)}[data-ui-theme=bauhaus][data-theme=dark] .user-menu-trigger,[data-ui-theme=bauhaus][data-theme=dark] .theme-toggle{box-shadow:var(--theme-btn-shadow)}[data-ui-theme=bauhaus][data-theme=dark] .chat-thread-new{box-shadow:var(--theme-sidebar-link-shadow)}[data-ui-theme=bauhaus][data-theme=dark] .topbar{border-bottom-width:4px}[data-ui-theme=bauhaus][data-theme=dark] .panel{border-width:1px;box-shadow:var(--theme-sidebar-link-shadow)}[data-ui-theme=bauhaus][data-theme=dark] .panel:after{border-width:1px}[data-ui-theme=bauhaus][data-theme=dark] .btn,[data-ui-theme=bauhaus][data-theme=dark] .icon-btn,[data-ui-theme=bauhaus][data-theme=dark] .theme-toggle,[data-ui-theme=bauhaus][data-theme=dark] .user-menu-trigger{border-width:1px}[data-ui-theme=bauhaus][data-theme=dark] .tabbar{border-bottom-width:3px}[data-ui-theme=bauhaus][data-theme=dark] .tab,[data-ui-theme=bauhaus][data-theme=dark] .playground-tab{border-width:var(--theme-tab-border-bottom-width)}[data-ui-theme=bauhaus][data-theme=dark] input:not([type=radio]):not([type=checkbox]):not([type=range]),[data-ui-theme=bauhaus][data-theme=dark] textarea,[data-ui-theme=bauhaus][data-theme=dark] .popup-select-trigger{border-width:var(--theme-input-border-width);box-shadow:var(--theme-input-shadow)}[data-ui-theme=bauhaus][data-theme=dark] .popup-select-trigger{border-width:var(--theme-popup-select-border-width);box-shadow:var(--theme-popup-select-shadow)}[data-ui-theme=bauhaus][data-theme=dark] .playground-card,[data-ui-theme=bauhaus][data-theme=dark] .document-row{border-width:3px}[data-ui-theme=bauhaus][data-theme=dark] .chat-page{border-width:3px;box-shadow:var(--theme-sidebar-link-shadow)}[data-ui-theme=bauhaus][data-theme=dark] .voice-page{border-width:0px;box-shadow:var(--theme-sidebar-link-shadow)}[data-ui-theme=bauhaus][data-theme=dark] .chat-sidebar{border-right-width:3px}[data-ui-theme=bauhaus][data-theme=dark] .chat-thread-item{border-width:3px}[data-ui-theme=bauhaus][data-theme=dark] .chat-thread-new{border-width:3px;box-shadow:var(--theme-sidebar-link-shadow)}[data-ui-theme=bauhaus][data-theme=dark] .voice-visualizer-shell,[data-ui-theme=bauhaus][data-theme=dark] .voice-transcript-shell,[data-ui-theme=bauhaus][data-theme=dark] .voice-wave-card,[data-ui-theme=bauhaus][data-theme=dark] .voice-turn-card{border-width:2px}[data-ui-theme=bauhaus][data-theme=dark] .user-menu .user-menu-popover,:root[data-ui-theme=bauhaus][data-theme=dark] .user-menu-popover{border-width:3px;box-shadow:var(--theme-sidebar-link-shadow)}[data-ui-theme=bauhaus][data-theme=dark] .repetition-sidebar .mode-tabs .tab,[data-ui-theme=bauhaus][data-theme=dark] .reading-sidebar .mode-tabs .tab{border-right-width:2px}[data-ui-theme=bauhaus][data-theme=dark] .repetition-sidebar .mode-tabs,[data-ui-theme=bauhaus][data-theme=dark] .reading-sidebar .mode-tabs{border-width:2px}[data-ui-theme=bauhaus][data-theme=dark] .context-menu,[data-ui-theme=bauhaus][data-theme=dark] .selection-action-menu{border-width:3px;box-shadow:var(--theme-sidebar-link-shadow)}[data-ui-theme=bauhaus] .repetition-grid{padding-right:.55rem;padding-bottom:.55rem;box-sizing:border-box}[data-ui-theme=bauhaus] .repetition-sidebar{overflow:visible}[data-ui-theme=bauhaus] .repetition-deck-list-scroll{padding-right:.55rem;padding-bottom:.55rem;overflow-x:hidden}[data-ui-theme=bauhaus] .panel,[data-ui-theme=bauhaus] .topbar{background:transparent;background-color:transparent}[data-ui-theme=bauhaus] .reading-sidebar,[data-ui-theme=bauhaus] .reading-viewer:not(.reading-viewer-mobile-fullscreen),[data-ui-theme=bauhaus] .notes-page,[data-ui-theme=bauhaus] .notes-list-panel,[data-ui-theme=bauhaus] .notes-editor-panel,[data-ui-theme=bauhaus] .cloze-mode-shell,[data-ui-theme=bauhaus] .cloze-setup-panel,[data-ui-theme=bauhaus] .cloze-player-shell,[data-ui-theme=bauhaus] .repetition-player-shell,[data-ui-theme=bauhaus] .repetition-empty-state-card,[data-ui-theme=bauhaus] .settings-tab-inner-panel{border:none!important;box-shadow:none!important}[data-ui-theme=bauhaus] .reading-sidebar:after,[data-ui-theme=bauhaus] .reading-viewer:not(.reading-viewer-mobile-fullscreen):after,[data-ui-theme=bauhaus] .notes-page:after,[data-ui-theme=bauhaus] .notes-list-panel:after,[data-ui-theme=bauhaus] .notes-editor-panel:after,[data-ui-theme=bauhaus] .cloze-mode-shell:after,[data-ui-theme=bauhaus] .cloze-setup-panel:after,[data-ui-theme=bauhaus] .cloze-player-shell:after,[data-ui-theme=bauhaus] .repetition-player-shell:after,[data-ui-theme=bauhaus] .repetition-empty-state-card:after,[data-ui-theme=bauhaus] .settings-tab-inner-panel:after{content:none!important}:root[data-ui-theme=art-deco]{--bg: #1a1a1d;--bg-soft: #232328;--panel: #1a1a1d;--panel-border: #d4af37;--text: #fdfbf7;--accent: #d4af37;--muted: #a89f91;--success: #50c878;--danger: #e57373;--theme-btn-border-width: 1px;--theme-btn-border-color: var(--accent);--theme-btn-shadow: none;--theme-btn-hover-shadow: none;--theme-btn-active-shadow: none;--theme-btn-primary-border-color: var(--accent);--theme-btn-primary-shadow-hover: none;--theme-btn-ghost-border-color: var(--accent);--theme-btn-ghost-hover-border-color: var(--accent);--theme-sidebar-link-border-width: 1px;--theme-sidebar-link-border-color: var(--accent);--theme-sidebar-link-bg: var(--panel);--theme-sidebar-link-shadow: none;--theme-sidebar-link-hover-border-color: var(--accent);--theme-sidebar-link-hover-bg: color-mix(in srgb, var(--accent) 6%, var(--panel));--theme-sidebar-link-hover-shadow: none;--theme-sidebar-link-active-border-color: var(--accent);--theme-sidebar-link-active-shadow: none;--theme-input-border-width: 1px;--theme-input-border-color: var(--accent);--theme-input-bg: var(--bg-soft);--theme-input-shadow: none;--theme-input-focus-border-color: var(--accent);--theme-input-focus-shadow: none;--theme-popup-select-border-width: 1px;--theme-popup-select-border-color: var(--accent);--theme-popup-select-bg: var(--bg-soft);--theme-popup-select-shadow: none;--theme-popup-select-hover-border-color: var(--accent);--theme-popup-select-open-border-color: var(--accent);--theme-popup-select-open-shadow: none;--theme-tab-border-bottom-width: 2px;--theme-tab-border-color: transparent;--theme-tab-bg: transparent;--theme-tab-shadow: none;--theme-tab-active-border-color: var(--accent);--theme-tab-active-bg: transparent;--theme-tab-active-shadow: none}:root[data-ui-theme=art-deco][data-theme=light]{--bg: #fffaf6;--bg-soft: #fff7f1;--panel: #fffdfa;--panel-border: #161008;--text: #161008;--accent: #d4af37;--muted: #3b2f21;--success: #2e8a5a;--danger: #bf5564}[data-ui-theme=art-deco] body{font-family:Cinzel,Playfair Display,Georgia,serif;background-color:var(--bg);color:var(--text);background-image:linear-gradient(to right,rgba(212,175,55,.18) 1px,transparent 1px),linear-gradient(to bottom,rgba(212,175,55,.18) 1px,transparent 1px);background-size:40px 40px}[data-ui-theme=art-deco] h1,[data-ui-theme=art-deco] h2,[data-ui-theme=art-deco] h3,[data-ui-theme=art-deco] h4{text-transform:uppercase;letter-spacing:.15em;font-weight:400;color:var(--accent)}[data-ui-theme=art-deco] .topbar{border-bottom:2px solid var(--accent);border-top:1px solid var(--accent);padding-top:.55rem}[data-ui-theme=art-deco] .eyebrow,[data-ui-theme=art-deco] .muted,[data-ui-theme=art-deco] label,[data-ui-theme=art-deco] .btn,[data-ui-theme=art-deco] .popup-select-trigger{font-family:Josefin Sans,sans-serif}[data-ui-theme=art-deco] .eyebrow{letter-spacing:.25em;color:var(--muted)}[data-ui-theme=art-deco] .panel{border:1px solid var(--accent);border-radius:12px;background:var(--panel);position:relative;box-shadow:inset 0 0 0 4px var(--bg),inset 0 0 0 5px var(--accent)}[data-ui-theme=art-deco] .btn,[data-ui-theme=art-deco] .icon-btn,[data-ui-theme=art-deco] .user-menu-trigger,[data-ui-theme=art-deco] .theme-toggle{border:1px solid var(--accent);border-radius:12px;background:transparent;color:var(--accent);text-transform:uppercase;letter-spacing:.15em;transition:all .3s ease;position:relative}[data-ui-theme=art-deco] .btn.primary{background:#d4af371a;color:var(--accent)}[data-ui-theme=art-deco] .btn:hover,[data-ui-theme=art-deco] .icon-btn:hover{background:var(--accent);color:var(--bg)}[data-ui-theme=art-deco] .playground-card,[data-ui-theme=art-deco] .document-row{border:1px solid var(--accent);border-radius:12px;background:var(--bg-soft);transition:all .4s ease;position:relative}[data-ui-theme=art-deco] .playground-card:before{content:"";position:absolute;inset:4px;border:1px solid rgba(212,175,55,.2);transition:all .4s ease;pointer-events:none}[data-ui-theme=art-deco] .playground-card:hover,[data-ui-theme=art-deco] .document-row:hover,[data-ui-theme=art-deco] .document-row.active{background:#d4af370d;box-shadow:none}[data-ui-theme=art-deco] .playground-card:hover:before{border-color:var(--accent)}[data-ui-theme=art-deco] .chat-page,[data-ui-theme=art-deco] .voice-page{border:1px solid var(--accent);background:var(--panel);box-shadow:inset 0 0 0 1px #d4af3747,0 12px 26px #00000047}[data-ui-theme=art-deco] .chat-sidebar{border-right:1px solid var(--accent);background:var(--bg-soft)}[data-ui-theme=art-deco] .chat-main,[data-ui-theme=art-deco] .voice-main{background:var(--panel)}[data-ui-theme=art-deco] .chat-thread-item{border:1px solid transparent;letter-spacing:.03em}[data-ui-theme=art-deco] .chat-thread-item:hover,[data-ui-theme=art-deco] .chat-thread-row.active .chat-thread-item{background:#d4af371f;border-color:var(--accent)}[data-ui-theme=art-deco] .chat-thread-new{border:1px solid var(--accent);background:#d4af3729;color:var(--accent);text-transform:uppercase;letter-spacing:.1em}[data-ui-theme=art-deco] .voice-visualizer-shell,[data-ui-theme=art-deco] .voice-transcript-shell,[data-ui-theme=art-deco] .voice-wave-card,[data-ui-theme=art-deco] .voice-turn-card{border:1px solid var(--accent);background:var(--panel)}[data-ui-theme=art-deco] .tabbar{border-bottom:1px solid var(--accent)}[data-ui-theme=art-deco] .tab,[data-ui-theme=art-deco] .playground-tab{text-transform:uppercase;letter-spacing:.15em;color:var(--muted);border:none;border-radius:12px;background:transparent}[data-ui-theme=art-deco] .mode-tabs .tab{font-size:clamp(.827rem,calc(.88rem + .194vw),.986rem);letter-spacing:.1em;min-width:0;padding:.5rem .6rem}[data-ui-theme=art-deco] .tab-active,[data-ui-theme=art-deco] .playground-tab.active{color:var(--accent);border-bottom:2px solid var(--accent)}[data-ui-theme=art-deco] input:not([type=range]),[data-ui-theme=art-deco] textarea,[data-ui-theme=art-deco] .popup-select-trigger{background:var(--bg-soft);border:1px solid var(--accent);color:var(--text);border-radius:12px}[data-ui-theme=art-deco] input:not([type=range]):focus,[data-ui-theme=art-deco] textarea:focus,[data-ui-theme=art-deco] .popup-select-trigger.open{outline:none;box-shadow:none}[data-ui-theme=art-deco] .context-menu,[data-ui-theme=art-deco] .selection-action-menu{border:1px solid var(--accent);box-shadow:inset 0 0 0 1px #d4af3759,0 10px 28px #0000005c}[data-ui-theme=art-deco] .context-menu-item{letter-spacing:.08em;text-transform:uppercase}[data-ui-theme=art-deco] .context-menu-item:hover{background:#d4af371f}[data-ui-theme=art-deco] .user-menu .user-menu-popover,:root[data-ui-theme=art-deco] .user-menu-popover{border:1px solid var(--accent);border-radius:12px;background:var(--panel);box-shadow:inset 0 0 0 1px #d4af3759,0 10px 28px #0000005c;z-index:1250}[data-ui-theme=art-deco] .user-menu .user-menu-name,:root[data-ui-theme=art-deco] .user-menu-name{border-bottom:1px solid var(--accent);color:var(--muted)}[data-ui-theme=art-deco] .user-menu .user-menu-item,:root[data-ui-theme=art-deco] .user-menu-item{color:var(--text);text-transform:uppercase;letter-spacing:.08em}[data-ui-theme=art-deco] .user-menu .user-menu-item:hover,:root[data-ui-theme=art-deco] .user-menu-item:hover{background:#d4af371f}[data-ui-theme=art-deco] .panel,[data-ui-theme=art-deco] .topbar{background:transparent;background-color:transparent}[data-ui-theme=art-deco] .reading-sidebar,[data-ui-theme=art-deco] .reading-viewer:not(.reading-viewer-mobile-fullscreen),[data-ui-theme=art-deco] .notes-page,[data-ui-theme=art-deco] .notes-list-panel,[data-ui-theme=art-deco] .notes-editor-panel,[data-ui-theme=art-deco] .cloze-mode-shell,[data-ui-theme=art-deco] .cloze-setup-panel,[data-ui-theme=art-deco] .cloze-player-shell,[data-ui-theme=art-deco] .repetition-player-shell,[data-ui-theme=art-deco] .repetition-empty-state-card{border:none!important;box-shadow:none!important}[data-ui-theme=art-deco] .reader-header-close-btn{margin-top:-1.15rem}[data-ui-theme=art-deco] .notes-page,[data-ui-theme=art-deco] .cloze-mode-shell,[data-ui-theme=art-deco] .chat-main{border:1px solid var(--accent)!important;border-radius:12px;background:var(--panel);box-shadow:inset 0 0 0 1px #d4af373d,0 10px 24px #0000003d!important}:root[data-ui-theme=glassy]{--bg: #0f1726;--bg-soft: rgba(18, 28, 43, .7);--panel: rgba(24, 36, 56, .58);--panel-border: rgba(207, 217, 229, .7);--text: #eef3fb;--accent: #5ad3c4;--muted: rgba(224, 233, 246, .72);--success: #4fd58a;--danger: #ff728d;--glass-menu-bg: #142036;--glass-menu-hover: #1d2f4a;--glass-blur-strong: 18px;--glass-blur-soft: 12px;--glass-saturation: 170%;--glass-chat-composer-blur: 4px;--glass-chat-composer-saturation: 135%;--glass-chat-composer-scrim-bottom: color-mix(in srgb, #0b1424 84%, transparent);--glass-chat-composer-scrim-mid: color-mix(in srgb, #0b1424 52%, transparent);--glass-rim: rgba(255, 255, 255, .3);--glass-specular: rgba(255, 255, 255, .24);--glass-depth-shadow: rgba(7, 13, 24, .42);--theme-btn-border-width: 1px;--theme-btn-border-color: var(--panel-border);--theme-btn-shadow: 0 10px 22px -16px var(--glass-depth-shadow), inset 0 1px 0 0 color-mix(in srgb, var(--glass-rim) 90%, transparent), inset 0 0 0 1px color-mix(in srgb, var(--glass-rim) 60%, transparent);--theme-btn-hover-shadow: var(--theme-btn-shadow);--theme-btn-active-shadow: var(--theme-btn-shadow);--theme-btn-primary-border-color: color-mix(in srgb, var(--accent) 60%, var(--panel-border));--theme-btn-primary-shadow-hover: inset 0 1px 0 0 color-mix(in srgb, #ffffff 94%, transparent), inset 0 0 0 1px color-mix(in srgb, #ffffff 40%, transparent), 0 16px 26px -16px color-mix(in srgb, var(--accent) 50%, var(--glass-depth-shadow));--theme-btn-ghost-border-color: color-mix(in srgb, var(--panel-border) 60%, transparent);--theme-btn-ghost-hover-border-color: color-mix(in srgb, var(--accent) 50%, var(--panel-border));--theme-sidebar-link-border-width: 1px;--theme-sidebar-link-border-color: var(--panel-border);--theme-sidebar-link-bg: color-mix(in srgb, var(--panel) 70%, rgba(255, 255, 255, .16));--theme-sidebar-link-shadow: 0 10px 20px -18px var(--glass-depth-shadow), inset 0 1px 0 0 color-mix(in srgb, var(--glass-rim) 84%, transparent), inset 0 0 0 1px color-mix(in srgb, var(--glass-rim) 42%, transparent);--theme-sidebar-link-hover-border-color: color-mix(in srgb, #ffffff 50%, var(--panel-border));--theme-sidebar-link-hover-bg: color-mix(in srgb, var(--panel) 62%, rgba(255, 255, 255, .26));--theme-sidebar-link-hover-shadow: var(--theme-sidebar-link-shadow);--theme-sidebar-link-active-border-color: color-mix(in srgb, var(--accent) 70%, var(--panel-border));--theme-sidebar-link-active-shadow: var(--theme-sidebar-link-shadow);--theme-input-border-width: 1px;--theme-input-border-color: var(--panel-border);--theme-input-bg: color-mix(in srgb, var(--panel) 82%, rgba(255, 255, 255, .18));--theme-input-shadow: inset 0 1px 0 0 color-mix(in srgb, var(--glass-rim) 74%, transparent), inset 0 0 0 1px color-mix(in srgb, var(--glass-rim) 35%, transparent);--theme-input-focus-border-color: color-mix(in srgb, var(--accent) 55%, var(--panel-border));--theme-input-focus-shadow: var(--theme-input-shadow);--theme-popup-select-border-width: 1px;--theme-popup-select-border-color: var(--panel-border);--theme-popup-select-bg: color-mix(in srgb, var(--panel) 82%, rgba(255, 255, 255, .18));--theme-popup-select-shadow: var(--theme-input-shadow);--theme-popup-select-hover-border-color: color-mix(in srgb, #ffffff 40%, var(--panel-border));--theme-popup-select-open-border-color: color-mix(in srgb, var(--accent) 55%, var(--panel-border));--theme-popup-select-open-shadow: var(--theme-input-shadow);--theme-tab-border-bottom-width: 1px;--theme-tab-border-color: transparent;--theme-tab-bg: transparent;--theme-tab-shadow: none;--theme-tab-active-border-color: var(--accent);--theme-tab-active-bg: color-mix(in srgb, var(--panel) 78%, rgba(255, 255, 255, .14));--theme-tab-active-shadow: none}:root[data-ui-theme=glassy][data-theme=light]{--bg: #eaf2fb;--bg-soft: rgba(236, 243, 252, .78);--panel: rgba(234, 242, 251, .74);--panel-border: rgba(47, 62, 84, .72);--text: #17283e;--accent: #2f9e8f;--muted: rgba(23, 40, 62, .82);--success: #1f9b67;--danger: #d44f6f;--glass-menu-bg: #f8fbff;--glass-menu-hover: #e7f0fa;--glass-blur-strong: 16px;--glass-blur-soft: 10px;--glass-saturation: 160%;--glass-chat-composer-blur: 3px;--glass-chat-composer-saturation: 125%;--glass-chat-composer-scrim-bottom: color-mix(in srgb, #edf4fd 88%, transparent);--glass-chat-composer-scrim-mid: color-mix(in srgb, #edf4fd 58%, transparent);--glass-rim: rgba(255, 255, 255, .85);--glass-specular: rgba(255, 255, 255, .66);--glass-depth-shadow: rgba(37, 67, 103, .2);--theme-btn-border-color: var(--panel-border);--theme-btn-shadow: 0 10px 22px -16px rgba(10, 20, 50, .15), inset 0 1px 0 0 rgba(255, 255, 255, 1), inset 0 0 0 1px color-mix(in srgb, rgba(37, 67, 103, .22) 50%, transparent);--theme-btn-primary-border-color: color-mix(in srgb, var(--accent) 40%, rgba(37, 67, 103, .22));--theme-btn-primary-shadow-hover: inset 0 1px 0 0 rgba(255, 255, 255, 1), inset 0 0 0 1px color-mix(in srgb, rgba(37, 67, 103, .22) 50%, transparent), 0 12px 22px -16px color-mix(in srgb, var(--accent) 50%, rgba(10, 20, 50, .2));--theme-sidebar-link-border-color: var(--panel-border);--theme-sidebar-link-bg: color-mix(in srgb, var(--panel) 88%, rgba(255, 255, 255, .44));--theme-sidebar-link-shadow: 0 10px 20px -18px rgba(10, 20, 50, .1), inset 0 1px 0 0 rgba(255, 255, 255, 1), inset 0 0 0 1px color-mix(in srgb, rgba(37, 67, 103, .18) 45%, transparent);--theme-sidebar-link-hover-border-color: color-mix(in srgb, var(--panel-border) 72%, rgba(37, 67, 103, .3));--theme-sidebar-link-hover-bg: color-mix(in srgb, var(--accent) 10%, rgba(255, 255, 255, .76));--theme-sidebar-link-active-border-color: color-mix(in srgb, var(--accent) 60%, rgba(37, 67, 103, .3));--theme-input-bg: color-mix(in srgb, var(--panel) 92%, rgba(255, 255, 255, .55));--theme-input-shadow: inset 0 1px 0 0 rgba(255, 255, 255, 1), inset 0 0 0 1px color-mix(in srgb, rgba(37, 67, 103, .18) 48%, transparent);--theme-input-focus-border-color: color-mix(in srgb, var(--accent) 55%, rgba(37, 67, 103, .26));--theme-popup-select-border-color: var(--panel-border);--theme-popup-select-bg: color-mix(in srgb, var(--panel) 92%, rgba(255, 255, 255, .5));--theme-popup-select-hover-border-color: color-mix(in srgb, var(--panel-border) 74%, rgba(37, 67, 103, .3));--theme-popup-select-open-border-color: color-mix(in srgb, var(--accent) 55%, rgba(37, 67, 103, .28))}[data-ui-theme=glassy] body{font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Helvetica,Arial,sans-serif;background-color:#0f1726;background-image:radial-gradient(circle at 16% 18%,rgba(90,211,196,.2) 0,transparent 35%),radial-gradient(circle at 84% 10%,rgba(129,140,248,.18) 0,transparent 32%),linear-gradient(145deg,#0f1726,#182740 55%,#122033);color:var(--text);background-attachment:scroll}[data-ui-theme=glassy][data-theme=light] body{background-color:#eaf2fb;background-image:radial-gradient(circle at 14% 16%,rgba(47,158,143,.18) 0,transparent 35%),radial-gradient(circle at 86% 8%,rgba(88,133,211,.16) 0,transparent 32%),linear-gradient(145deg,#f2f7ff,#dbe8f6 55%,#eff6ff)}[data-ui-theme=glassy] h1,[data-ui-theme=glassy] h2,[data-ui-theme=glassy] h3,[data-ui-theme=glassy] h4{font-weight:300;letter-spacing:.05em;text-shadow:0 2px 4px rgba(0,0,0,.1)}[data-ui-theme=glassy] .topbar{border:1px solid var(--panel-border);background:var(--panel);backdrop-filter:blur(var(--glass-blur-strong)) saturate(var(--glass-saturation));-webkit-backdrop-filter:blur(var(--glass-blur-strong)) saturate(var(--glass-saturation));border-radius:12px;box-shadow:0 20px 38px -24px var(--glass-depth-shadow),inset 0 1px 0 0 var(--glass-rim),inset 0 0 0 1px color-mix(in srgb,var(--glass-rim) 62%,transparent);padding-left:.95rem;padding-right:.6rem;position:relative;overflow:visible;z-index:60}[data-ui-theme=glassy] .topbar:before{content:none}[data-ui-theme=glassy] .topbar>:first-child{padding-left:.15rem}[data-ui-theme=glassy] .playground-topbar{padding-top:.45rem}[data-ui-theme=glassy] .playground-header-shell{position:relative;z-index:55}[data-ui-theme=glassy] .playground-shell .playground-main{position:relative;z-index:1}[data-ui-theme=glassy] .user-menu{position:relative;z-index:80}[data-ui-theme=glassy] .eyebrow{padding-top:12px;color:var(--accent);font-weight:600;letter-spacing:.15em;text-shadow:0 2px 4px rgba(0,0,0,.1)}[data-ui-theme=glassy] .panel{background:var(--panel);border-radius:12px;box-shadow:0 16px 32px -24px var(--glass-depth-shadow),inset 0 1px color-mix(in srgb,var(--glass-rim) 25%,transparent),inset 0 0 0 1px color-mix(in srgb,var(--glass-rim) 15%,transparent);backdrop-filter:blur(var(--glass-blur-soft)) saturate(var(--glass-saturation));-webkit-backdrop-filter:blur(var(--glass-blur-soft)) saturate(var(--glass-saturation));border:1px solid var(--panel-border);position:relative;overflow:hidden}[data-ui-theme=glassy] .playground-card,[data-ui-theme=glassy] .document-row{background:var(--panel);border-radius:12px;box-shadow:0 16px 32px -24px var(--glass-depth-shadow),inset 0 1px 0 0 var(--glass-rim),inset 0 0 0 1px color-mix(in srgb,var(--glass-rim) 58%,transparent);backdrop-filter:blur(var(--glass-blur-soft)) saturate(var(--glass-saturation));-webkit-backdrop-filter:blur(var(--glass-blur-soft)) saturate(var(--glass-saturation));border:1px solid var(--panel-border);position:relative;overflow:hidden}[data-ui-theme=glassy] .playground-card:before,[data-ui-theme=glassy] .document-row:before{content:none}[data-ui-theme=glassy][data-theme=light] .panel{background:var(--panel);box-shadow:0 16px 32px -24px var(--glass-depth-shadow),inset 0 1px 0 0 var(--glass-rim),inset 0 0 0 1px color-mix(in srgb,var(--glass-rim) 58%,transparent)}[data-ui-theme=glassy][data-theme=light] .panel:before{content:none}[data-ui-theme=glassy] .user-menu .user-menu-popover,:root[data-ui-theme=glassy] .user-menu-popover{border-radius:12px}[data-ui-theme=glassy] .btn,[data-ui-theme=glassy] .icon-btn,[data-ui-theme=glassy] .theme-toggle,[data-ui-theme=glassy] .user-menu-trigger{background:color-mix(in srgb,var(--panel) 64%,rgba(255,255,255,.2));border-radius:12px;box-shadow:0 10px 22px -16px var(--glass-depth-shadow),inset 0 1px color-mix(in srgb,var(--glass-rim) 90%,transparent),inset 0 0 0 1px color-mix(in srgb,var(--glass-rim) 60%,transparent);backdrop-filter:blur(8px) saturate(var(--glass-saturation));-webkit-backdrop-filter:blur(8px) saturate(var(--glass-saturation));border:1px solid color-mix(in srgb,var(--panel-border) 70%,transparent);color:var(--text);font-weight:500;transition:all .3s ease;position:relative;overflow:hidden}[data-ui-theme=glassy] .btn:focus:not(:focus-visible),[data-ui-theme=glassy] .icon-btn:focus:not(:focus-visible),[data-ui-theme=glassy] .theme-toggle:focus:not(:focus-visible),[data-ui-theme=glassy] .user-menu-trigger:focus:not(:focus-visible){outline:none}[data-ui-theme=glassy] .global-sidebar-collapse-btn,[data-ui-theme=glassy] .global-sidebar-section-action{border:none!important;background:transparent!important;box-shadow:none!important;backdrop-filter:none!important;-webkit-backdrop-filter:none!important}[data-ui-theme=glassy] .btn:active,[data-ui-theme=glassy] .icon-btn:active,[data-ui-theme=glassy] .theme-toggle:active,[data-ui-theme=glassy] .user-menu-trigger:active,[data-ui-theme=glassy][data-theme=light] .btn:active,[data-ui-theme=glassy][data-theme=light] .icon-btn:active,[data-ui-theme=glassy][data-theme=light] .theme-toggle:active,[data-ui-theme=glassy][data-theme=light] .user-menu-trigger:active{border-color:var(--accent)}[data-ui-theme=glassy] .btn.primary{border-color:color-mix(in srgb,var(--accent) 60%,var(--panel-border));background:color-mix(in srgb,var(--accent) 64%,rgba(255,255,255,.32));color:#0f2238;box-shadow:inset 0 1px color-mix(in srgb,#ffffff 88%,transparent),inset 0 0 0 1px color-mix(in srgb,#ffffff 30%,transparent),0 12px 22px -16px color-mix(in srgb,var(--accent) 40%,var(--glass-depth-shadow))}[data-ui-theme=glassy] .btn.primary:hover:not(:disabled){border-color:color-mix(in srgb,var(--accent) 76%,var(--panel-border));background:color-mix(in srgb,var(--accent) 70%,rgba(255,255,255,.4));box-shadow:inset 0 1px color-mix(in srgb,#ffffff 94%,transparent),inset 0 0 0 1px color-mix(in srgb,#ffffff 40%,transparent),0 16px 26px -16px color-mix(in srgb,var(--accent) 50%,var(--glass-depth-shadow));transform:none}[data-ui-theme=glassy] .btn.ghost,[data-ui-theme=glassy] .btn.success-outline,[data-ui-theme=glassy] .btn.danger-outline,[data-ui-theme=glassy] .btn.danger-outline-dark,[data-ui-theme=glassy] .settings-upgrade-btn{background:color-mix(in srgb,var(--panel) 76%,rgba(255,255,255,.22));border:1px solid color-mix(in srgb,var(--panel-border) 60%,transparent);box-shadow:0 10px 22px -18px var(--glass-depth-shadow),inset 0 1px color-mix(in srgb,var(--glass-rim) 85%,transparent),inset 0 0 0 1px color-mix(in srgb,var(--glass-rim) 40%,transparent)}[data-ui-theme=glassy] .btn.ghost:hover,[data-ui-theme=glassy] .btn.success-outline:hover,[data-ui-theme=glassy] .btn.danger-outline:hover,[data-ui-theme=glassy] .btn.danger-outline-dark,[data-ui-theme=glassy] .settings-upgrade-btn:hover{border-color:color-mix(in srgb,var(--accent) 50%,var(--panel-border));background:color-mix(in srgb,var(--panel) 68%,rgba(255,255,255,.26));box-shadow:0 14px 24px -20px color-mix(in srgb,var(--accent) 30%,var(--glass-depth-shadow)),inset 0 1px color-mix(in srgb,var(--glass-rim) 90%,transparent),inset 0 0 0 1px color-mix(in srgb,var(--glass-rim) 50%,transparent)}[data-ui-theme=glassy][data-theme=light] .btn,[data-ui-theme=glassy][data-theme=light] .icon-btn,[data-ui-theme=glassy][data-theme=light] .theme-toggle,[data-ui-theme=glassy][data-theme=light] .user-menu-trigger{background:color-mix(in srgb,var(--panel) 90%,rgba(255,255,255,.5));border-color:color-mix(in srgb,var(--panel-border) 82%,rgba(37,67,103,.24));box-shadow:0 10px 22px -16px #0a143226,inset 0 1px #fff,inset 0 0 0 1px color-mix(in srgb,rgba(37,67,103,.22) 50%,transparent)}[data-ui-theme=glassy][data-theme=light] .btn.primary{border-color:color-mix(in srgb,var(--accent) 40%,rgba(37,67,103,.22));background:color-mix(in srgb,var(--accent) 20%,rgba(255,255,255,.95));box-shadow:inset 0 1px #fff,inset 0 0 0 1px color-mix(in srgb,rgba(37,67,103,.22) 50%,transparent),0 12px 22px -16px color-mix(in srgb,var(--accent) 50%,rgba(10,20,50,.2))}[data-ui-theme=glassy][data-theme=light] .btn.primary:hover:not(:disabled){border-color:color-mix(in srgb,var(--accent) 50%,rgba(37,67,103,.3));background:color-mix(in srgb,var(--accent) 30%,rgba(255,255,255,1))}[data-ui-theme=glassy][data-theme=light] .btn.ghost,[data-ui-theme=glassy][data-theme=light] .btn.success-outline,[data-ui-theme=glassy][data-theme=light] .btn.danger-outline,[data-ui-theme=glassy][data-theme=light] .btn.danger-outline-dark,[data-ui-theme=glassy][data-theme=light] .settings-upgrade-btn{background:color-mix(in srgb,var(--panel) 90%,rgba(255,255,255,.3));border-color:color-mix(in srgb,var(--panel-border) 86%,rgba(37,67,103,.18));box-shadow:0 10px 22px -18px #0a14321a,inset 0 1px #fff,inset 0 0 0 1px color-mix(in srgb,rgba(37,67,103,.18) 48%,transparent)}[data-ui-theme=glassy][data-theme=light] .btn.ghost:hover,[data-ui-theme=glassy][data-theme=light] .btn.success-outline:hover,[data-ui-theme=glassy][data-theme=light] .btn.danger-outline:hover,[data-ui-theme=glassy][data-theme=light] .btn.danger-outline-dark,[data-ui-theme=glassy][data-theme=light] .settings-upgrade-btn:hover{border-color:color-mix(in srgb,var(--panel-border) 68%,rgba(37,67,103,.3));background:color-mix(in srgb,var(--accent) 15%,rgba(255,255,255,.7))}[data-ui-theme=glassy] .btn:hover,[data-ui-theme=glassy] .icon-btn:hover,[data-ui-theme=glassy] .global-sidebar-link:hover,[data-ui-theme=glassy] .global-sidebar-subnav-link:hover,[data-ui-theme=glassy] .global-playground-link:hover,[data-ui-theme=glassy] .playground-card:hover,[data-ui-theme=glassy] .document-row:hover{background-color:#fff3;border-color:#ffffff80;transform:none}[data-ui-theme=glassy] .btn.accent-button{border-color:color-mix(in srgb,var(--accent) 60%,var(--panel-border));background:transparent;color:var(--accent);box-shadow:none;font-weight:700}[data-ui-theme=glassy] .btn.accent-button:hover:not(:disabled){border-color:color-mix(in srgb,var(--accent) 68%,var(--panel-border));background:color-mix(in srgb,var(--accent) 12%,rgba(255,255,255,.22));color:var(--accent);box-shadow:0 12px 18px -16px color-mix(in srgb,var(--accent) 40%,var(--glass-depth-shadow))}[data-ui-theme=glassy][data-theme=light] .btn.accent-button{border-color:color-mix(in srgb,var(--accent) 40%,rgba(37,67,103,.22));background:transparent;color:var(--accent);box-shadow:none}[data-ui-theme=glassy][data-theme=light] .btn.accent-button:hover:not(:disabled){border-color:color-mix(in srgb,var(--accent) 50%,rgba(37,67,103,.3));background:color-mix(in srgb,var(--accent) 10%,rgba(255,255,255,.84));color:var(--accent)}[data-ui-theme=glassy] .playground-card.active,[data-ui-theme=glassy] .global-sidebar-link.active,[data-ui-theme=glassy] .global-sidebar-subnav-link.active,[data-ui-theme=glassy] .global-playground-link.active,[data-ui-theme=glassy] .document-row.active{outline:none;border-color:color-mix(in srgb,var(--accent) 72%,var(--panel-border));background:color-mix(in srgb,var(--accent) 12%,rgba(255,255,255,.2));box-shadow:inset 0 1px 0 0 var(--glass-rim),inset 0 0 0 1px color-mix(in srgb,var(--accent) 76%,#2a3547 24%);transform:none}[data-ui-theme=glassy] .playground-progress-pills{gap:.5rem;align-items:center}[data-ui-theme=glassy] .playground-progress-pill{position:relative;overflow:hidden;border-radius:12px;border:1px solid color-mix(in srgb,var(--panel-border) 84%,transparent);background:linear-gradient(132deg,color-mix(in srgb,var(--panel) 78%,rgba(255,255,255,.2)),color-mix(in srgb,var(--panel) 93%,transparent));box-shadow:inset 0 1px color-mix(in srgb,var(--glass-rim) 72%,transparent),0 10px 20px -20px var(--glass-depth-shadow);backdrop-filter:blur(8px) saturate(var(--glass-saturation));-webkit-backdrop-filter:blur(8px) saturate(var(--glass-saturation));padding:.408rem .816rem;font-size:clamp(.846rem,calc(.9rem + .198vw),1.008rem);letter-spacing:.02em}[data-ui-theme=glassy] .playground-progress-pill:before{content:"";position:absolute;inset:0;background:linear-gradient(120deg,color-mix(in srgb,var(--glass-specular) 76%,transparent) 0%,transparent 52%);pointer-events:none}[data-ui-theme=glassy] .playground-progress-pill.progress-goal{border-color:color-mix(in srgb,var(--accent) 44%,var(--panel-border))}[data-ui-theme=glassy] .playground-progress-pill.mascot-pill{border:none;background:transparent;box-shadow:none;backdrop-filter:none;-webkit-backdrop-filter:none}[data-ui-theme=glassy] .playground-progress-pill.mascot-pill:before{display:none}[data-ui-theme=glassy] .playground-progress-pill.goal-pill-complete{border-color:color-mix(in srgb,var(--success) 56%,var(--panel-border))}[data-ui-theme=glassy] .tab{background:linear-gradient(140deg,color-mix(in srgb,var(--panel) 80%,rgba(255,255,255,.14)),color-mix(in srgb,var(--panel) 94%,transparent));border:1px solid transparent;color:var(--muted);border-radius:12px;transition:border-color .2s ease,background .2s ease,color .2s ease,box-shadow .2s ease;box-shadow:inset 0 1px color-mix(in srgb,var(--glass-rim) 58%,transparent)}[data-ui-theme=glassy] .tab:hover{border-color:color-mix(in srgb,var(--panel-border) 82%,transparent);background:linear-gradient(140deg,color-mix(in srgb,var(--panel) 76%,rgba(255,255,255,.2)),color-mix(in srgb,var(--panel) 92%,transparent));color:var(--text)}[data-ui-theme=glassy] .tab-active{background:linear-gradient(140deg,color-mix(in srgb,var(--panel) 70%,color-mix(in srgb,var(--accent) 24%,transparent)),color-mix(in srgb,var(--panel) 88%,transparent));color:var(--text);border-color:color-mix(in srgb,var(--accent) 52%,var(--panel-border));border-bottom-color:var(--accent);box-shadow:inset 0 1px color-mix(in srgb,var(--glass-rim) 64%,transparent),0 10px 20px -20px color-mix(in srgb,var(--accent) 24%,var(--glass-depth-shadow))}[data-ui-theme=glassy] input:not([type=range]),[data-ui-theme=glassy] textarea,[data-ui-theme=glassy] .popup-select-trigger{background:linear-gradient(132deg,color-mix(in srgb,var(--panel) 84%,rgba(255,255,255,.14)),color-mix(in srgb,var(--panel) 98%,transparent));border:1px solid var(--panel-border);border-radius:12px;color:var(--text);backdrop-filter:blur(8px) saturate(var(--glass-saturation));-webkit-backdrop-filter:blur(8px) saturate(var(--glass-saturation))}[data-ui-theme=glassy] input:not([type=range]):focus,[data-ui-theme=glassy] textarea:focus,[data-ui-theme=glassy] .popup-select-trigger.open{background:var(--panel);border-color:var(--panel-border);outline:none}[data-ui-theme=glassy] .context-menu{border:1px solid var(--panel-border);background:var(--glass-menu-bg);box-shadow:0 12px 30px #0000003d;backdrop-filter:none;-webkit-backdrop-filter:none}[data-ui-theme=glassy] .language-space-dropdown{background:var(--glass-menu-bg);border-color:var(--panel-border);box-shadow:0 12px 28px #0000004d}[data-ui-theme=glassy] .popup-select-menu,[data-ui-theme=glassy] .user-menu .user-menu-popover,:root[data-ui-theme=glassy] .user-menu-popover,[data-ui-theme=glassy] .deck-actions-menu{background:var(--glass-menu-bg);border-color:var(--panel-border);box-shadow:0 12px 30px #0000003d;backdrop-filter:none;-webkit-backdrop-filter:none}[data-ui-theme=glassy] .user-menu .user-menu-popover,:root[data-ui-theme=glassy] .user-menu-popover,[data-ui-theme=glassy] .popup-select-menu,[data-ui-theme=glassy] .context-menu,[data-ui-theme=glassy] .reader-format-menu,[data-ui-theme=glassy] .deck-actions-menu{z-index:1250}[data-ui-theme=glassy] .popup-select-item:hover,[data-ui-theme=glassy] .popup-select-item.selected,[data-ui-theme=glassy] .user-menu .user-menu-item:hover,:root[data-ui-theme=glassy] .user-menu-item:hover{background:var(--glass-menu-hover)}[data-ui-theme=glassy] .user-menu .user-menu-name,:root[data-ui-theme=glassy] .user-menu-name{color:var(--muted);border-bottom-color:var(--panel-border)}[data-ui-theme=glassy] .user-menu .user-menu-item,:root[data-ui-theme=glassy] .user-menu-item{color:var(--text)}[data-ui-theme=glassy] .popup-select-item.selected{box-shadow:inset 0 0 0 1px var(--accent)}[data-ui-theme=glassy] .context-menu-item:hover{background:var(--glass-menu-hover)}[data-ui-theme=glassy] .reader-format-menu{background:var(--glass-menu-bg);border-color:var(--panel-border);box-shadow:0 12px 30px #0000003d;backdrop-filter:none;-webkit-backdrop-filter:none}[data-ui-theme=glassy] .modal,[data-ui-theme=glassy] .popup-select-menu,[data-ui-theme=glassy] .context-menu,[data-ui-theme=glassy] .reader-format-menu,[data-ui-theme=glassy] .deck-actions-menu,[data-ui-theme=glassy] .undo-snackbar,[data-ui-theme=glassy] .xp-toast,[data-ui-theme=glassy] .user-menu .user-menu-popover,:root[data-ui-theme=glassy] .user-menu-popover{border-radius:12px}[data-ui-theme=glassy] .xp-toast{border-color:color-mix(in srgb,var(--success) 35%,rgba(255,255,255,.18));background:linear-gradient(145deg,color-mix(in srgb,var(--success) 18%,var(--panel)),color-mix(in srgb,var(--panel) 94%,transparent));color:var(--success);box-shadow:0 18px 34px -24px var(--glass-depth-shadow),inset 0 1px color-mix(in srgb,var(--glass-rim) 66%,transparent)}[data-ui-theme=glassy] .xp-toast.level_up{border-color:color-mix(in srgb,var(--accent) 55%,var(--panel-border))}[data-ui-theme=glassy] .xp-toast.session_complete{border-color:color-mix(in srgb,var(--success) 52%,var(--panel-border))}[data-ui-theme=glassy] .xp-toast.bonus_round{border-color:color-mix(in srgb,#f7bf3c 58%,var(--panel-border));background:linear-gradient(145deg,color-mix(in srgb,#f7bf3c 16%,var(--panel)),color-mix(in srgb,var(--panel) 94%,transparent))}[data-ui-theme=glassy] .xp-toast.streak{border-color:color-mix(in srgb,#e7b14a 62%,var(--panel-border));background:linear-gradient(145deg,color-mix(in srgb,#6b4a0d 78%,var(--panel)),color-mix(in srgb,#4b3208 82%,var(--panel)));color:color-mix(in srgb,#f6d487 88%,#ffffff 12%)}[data-ui-theme=glassy] .modal-header{border-top-left-radius:16px;border-top-right-radius:16px}[data-ui-theme=glassy] .modal-body:last-child{border-bottom-left-radius:16px;border-bottom-right-radius:16px}[data-ui-theme=glassy] .modal:not(.modal-auth){background:linear-gradient(145deg,#0f1928f0,#131f31eb);border-color:color-mix(in srgb,var(--panel-border) 82%,rgba(255,255,255,.18));box-shadow:0 28px 44px -30px #0000009e,inset 0 1px color-mix(in srgb,var(--glass-rim) 70%,transparent)}[data-ui-theme=glassy][data-theme=light] .modal:not(.modal-auth){background:linear-gradient(145deg,#fafcfff5,#f3f8fff2);border-color:color-mix(in srgb,var(--panel-border) 88%,#ffffff 12%);box-shadow:0 28px 44px -30px #14345842,inset 0 1px #ffffffc7}[data-ui-theme=glassy] .popup-select-item,[data-ui-theme=glassy] .context-menu-item,[data-ui-theme=glassy] .deck-actions-item{border-radius:12px;border:1px solid transparent;transition:background .16s ease,border-color .16s ease,color .16s ease,box-shadow .16s ease}[data-ui-theme=glassy] .popup-select-item:hover,[data-ui-theme=glassy] .context-menu-item:hover,[data-ui-theme=glassy] .deck-actions-item:hover{border-color:color-mix(in srgb,var(--panel-border) 78%,transparent);background:linear-gradient(135deg,color-mix(in srgb,var(--panel) 78%,rgba(255,255,255,.16)),color-mix(in srgb,var(--panel) 92%,transparent));box-shadow:inset 0 1px color-mix(in srgb,var(--glass-rim) 60%,transparent)}[data-ui-theme=glassy] .reader-highlighter-toggle.active,[data-ui-theme=glassy] .reader-highlighter-toggle[aria-pressed=true]{border-color:var(--accent);background:color-mix(in srgb,var(--accent) 16%,var(--panel));color:color-mix(in srgb,var(--accent) 78%,var(--text));box-shadow:none}[data-ui-theme=glassy] .reader-highlighter-toggle.active:hover,[data-ui-theme=glassy] .reader-highlighter-toggle[aria-pressed=true]:hover{border-color:var(--accent);background:color-mix(in srgb,var(--accent) 16%,var(--panel));color:color-mix(in srgb,var(--accent) 78%,var(--text));box-shadow:none;transform:none}[data-ui-theme=glassy] .settings-tab-strip{position:relative;z-index:40;overflow-y:visible}[data-ui-theme=glassy] .settings-tab-strip .btn{position:relative;z-index:1;transition:background .16s ease,border-color .16s ease,color .16s ease,box-shadow .16s ease}[data-ui-theme=glassy] .settings-tab-strip .btn:hover,[data-ui-theme=glassy] .settings-tab-strip .btn:active{transform:none;z-index:3}[data-ui-theme=glassy] .mode-setup-segmented{border-radius:12px;overflow:hidden;background:var(--panel);box-shadow:inset 0 1px color-mix(in srgb,var(--glass-rim) 62%,transparent),0 10px 22px -20px var(--glass-depth-shadow)}[data-ui-theme=glassy] .mode-setup-segment{transition:background .16s ease,color .16s ease,box-shadow .16s ease}[data-ui-theme=glassy] .mode-setup-segment:hover{background:color-mix(in srgb,var(--panel) 84%,rgba(255,255,255,.18))}[data-ui-theme=glassy] .mode-setup-segment.active{background:color-mix(in srgb,var(--accent) 74%,rgba(255,255,255,.2));color:#0f2238;box-shadow:inset 0 1px color-mix(in srgb,#ffffff 76%,transparent)}[data-ui-theme=glassy] .notes-header-actions-shell .new-note-btn{border-color:color-mix(in srgb,var(--accent) 44%,var(--panel-border));background:color-mix(in srgb,var(--accent) 72%,rgba(255,255,255,.24));color:#0f2238}[data-ui-theme=glassy] .notes-header-actions-shell .new-note-btn:hover:not(:disabled){border-color:color-mix(in srgb,var(--accent) 54%,var(--panel-border));background:color-mix(in srgb,var(--accent) 80%,rgba(255,255,255,.2));color:#0f2238}[data-ui-theme=glassy] .login-provider-btn{background:linear-gradient(132deg,color-mix(in srgb,var(--panel) 78%,rgba(255,255,255,.2)),color-mix(in srgb,var(--panel) 93%,transparent));border:1px solid color-mix(in srgb,var(--panel-border) 80%,transparent);box-shadow:inset 0 1px color-mix(in srgb,var(--glass-rim) 66%,transparent);transition:border-color .16s ease,background .16s ease,color .16s ease,box-shadow .16s ease}[data-ui-theme=glassy] .login-provider-btn:hover{border-color:color-mix(in srgb,var(--accent) 46%,var(--panel-border));background:linear-gradient(132deg,color-mix(in srgb,var(--panel) 72%,rgba(255,255,255,.24)),color-mix(in srgb,var(--panel) 90%,color-mix(in srgb,var(--accent) 12%,transparent)))}[data-ui-theme=glassy] .repetition-empty-state-card,[data-ui-theme=glassy] .cloze-option-card,[data-ui-theme=glassy] .cloze-session-card,[data-ui-theme=glassy] .cloze-sentence-shell,[data-ui-theme=glassy] .matching-item,[data-ui-theme=glassy] .flashcard,[data-ui-theme=glassy] .definition{border-radius:12px;border-color:var(--panel-border);background:var(--panel);box-shadow:inset 0 1px color-mix(in srgb,var(--glass-rim) 82%,transparent),0 10px 24px -18px var(--glass-depth-shadow)}[data-ui-theme=glassy][data-theme=light] .repetition-empty-state-card,[data-ui-theme=glassy][data-theme=light] .cloze-option-card,[data-ui-theme=glassy][data-theme=light] .cloze-session-card,[data-ui-theme=glassy][data-theme=light] .cloze-sentence-shell,[data-ui-theme=glassy][data-theme=light] .matching-item,[data-ui-theme=glassy][data-theme=light] .flashcard,[data-ui-theme=glassy][data-theme=light] .definition{background:linear-gradient(138deg,color-mix(in srgb,var(--panel) 86%,rgba(255,255,255,.14)),color-mix(in srgb,var(--panel) 96%,transparent))}[data-ui-theme=glassy][data-theme=light] .repetition-empty-state-card{border-radius:12px;background:linear-gradient(138deg,color-mix(in srgb,var(--panel) 88%,rgba(255,255,255,.44)),color-mix(in srgb,var(--panel) 98%,transparent));box-shadow:inset 0 1px color-mix(in srgb,var(--glass-rim) 88%,transparent),0 10px 22px -18px var(--glass-depth-shadow)}[data-ui-theme=glassy] .cloze-status-pill,[data-ui-theme=glassy] .cloze-blank-chip,[data-ui-theme=glassy] .cloze-difficulty-chip,[data-ui-theme=glassy] .cloze-count-chip,[data-ui-theme=glassy] .cloze-writing-input{border-radius:12px}[data-ui-theme=glassy] .cloze-difficulty-chip,[data-ui-theme=glassy] .cloze-count-chip{transition:border-color .18s ease,background-color .18s ease,box-shadow .18s ease,color .18s ease}[data-ui-theme=glassy] .cloze-difficulty-chip:hover,[data-ui-theme=glassy] .cloze-count-chip:hover{border-color:var(--accent);background-color:color-mix(in srgb,var(--accent) 8%,var(--panel))}[data-ui-theme=glassy] .cloze-difficulty-chip.active,[data-ui-theme=glassy] .cloze-count-chip.active{border-color:color-mix(in srgb,var(--accent) 72%,var(--panel-border));background-color:color-mix(in srgb,var(--accent) 12%,var(--panel));box-shadow:inset 0 1px 0 0 var(--glass-rim),inset 0 0 0 1px color-mix(in srgb,var(--accent) 76%,#2a3547 24%)}[data-ui-theme=glassy] .cloze-option-card-active,[data-ui-theme=glassy] .matching-item.active{background:color-mix(in srgb,var(--accent) 16%,var(--panel))}[data-ui-theme=glassy] .chat-page,[data-ui-theme=glassy] .chat-sidebar,[data-ui-theme=glassy] .chat-main,[data-ui-theme=glassy] .chat-composer,[data-ui-theme=glassy] .chat-bubble-assistant,[data-ui-theme=glassy] .chat-bubble-user,[data-ui-theme=glassy] .chat-scroll-bottom,[data-ui-theme=glassy] .chat-code-block,[data-ui-theme=glassy] .chat-inline-code{border-radius:12px}[data-ui-theme=glassy] .chat-sidebar,[data-ui-theme=glassy] .chat-main{background:var(--panel)}[data-ui-theme=glassy][data-theme=light] .chat-main{background:color-mix(in srgb,var(--panel) 92%,rgba(255,255,255,.28))}[data-ui-theme=glassy] .chat-sidebar{backdrop-filter:blur(10px) saturate(var(--glass-saturation));-webkit-backdrop-filter:blur(10px) saturate(var(--glass-saturation));box-shadow:inset 0 1px color-mix(in srgb,var(--glass-rim) 74%,transparent),inset 0 0 0 1px color-mix(in srgb,var(--glass-rim) 44%,transparent)}[data-ui-theme=glassy] .chat-thread-item{border:1px solid color-mix(in srgb,var(--panel-border) 55%,transparent);background:color-mix(in srgb,var(--panel) 88%,rgba(255,255,255,.08));box-shadow:inset 0 1px color-mix(in srgb,var(--glass-rim) 50%,transparent);border-radius:12px;transition:box-shadow .12s ease,background .12s ease;backface-visibility:hidden;transform:translateZ(0)}[data-ui-theme=glassy] .chat-thread-item:hover,[data-ui-theme=glassy] .chat-thread-row.active .chat-thread-item{border-color:color-mix(in srgb,var(--panel-border) 55%,transparent);background:color-mix(in srgb,var(--panel) 92%,rgba(255,255,255,.1));box-shadow:inset 0 1px color-mix(in srgb,var(--glass-rim) 58%,transparent),0 8px 18px -18px var(--glass-depth-shadow)}[data-ui-theme=glassy][data-theme=light] .chat-sidebar{background:color-mix(in srgb,var(--panel) 90%,rgba(255,255,255,.3))}[data-ui-theme=glassy][data-theme=light] .chat-thread-item{border:1px solid color-mix(in srgb,var(--panel-border) 80%,transparent);background:color-mix(in srgb,#ffffff 84%,var(--panel) 16%);box-shadow:inset 0 1px color-mix(in srgb,var(--glass-rim) 90%,transparent),0 8px 18px -16px var(--glass-depth-shadow)}[data-ui-theme=glassy][data-theme=light] .chat-thread-item:hover,[data-ui-theme=glassy][data-theme=light] .chat-thread-row.active .chat-thread-item{border-color:color-mix(in srgb,var(--panel-border) 80%,transparent);background:color-mix(in srgb,var(--panel) 88%,rgba(255,255,255,.5));box-shadow:inset 0 1px color-mix(in srgb,var(--glass-rim) 92%,transparent),0 10px 20px -18px var(--glass-depth-shadow)}[data-ui-theme=glassy] .chat-bubble-user{color:#0f2238;box-shadow:inset 0 1px color-mix(in srgb,var(--glass-rim) 70%,transparent),0 8px 20px -16px var(--glass-depth-shadow)}[data-ui-theme=glassy] .chat-bubble-assistant{background:linear-gradient(138deg,color-mix(in srgb,var(--panel) 88%,rgba(255,255,255,.12)),color-mix(in srgb,var(--panel) 98%,transparent))}[data-ui-theme=glassy] .chat-send-btn{border-radius:12px;border:1px solid color-mix(in srgb,var(--accent) 56%,var(--panel-border));background:linear-gradient(135deg,color-mix(in srgb,var(--accent) 64%,rgba(255,255,255,.24)),color-mix(in srgb,var(--accent) 82%,transparent));color:#0f2238;box-shadow:inset 0 1px color-mix(in srgb,#ffffff 78%,transparent),0 12px 22px -20px color-mix(in srgb,var(--accent) 34%,var(--glass-depth-shadow));transition:transform .16s ease,border-color .16s ease,background .16s ease,box-shadow .16s ease}[data-ui-theme=glassy] .chat-send-btn:hover:not(:disabled){transform:none;border-color:color-mix(in srgb,var(--accent) 72%,var(--panel-border));background:linear-gradient(135deg,color-mix(in srgb,var(--accent) 70%,rgba(255,255,255,.28)),color-mix(in srgb,var(--accent) 86%,transparent));box-shadow:inset 0 1px color-mix(in srgb,#ffffff 82%,transparent),0 14px 24px -18px color-mix(in srgb,var(--accent) 42%,var(--glass-depth-shadow))}[data-ui-theme=glassy] .chat-message-action{border-radius:12px;border:1px solid transparent;transition:border-color .14s ease,background .14s ease,color .14s ease}[data-ui-theme=glassy] .chat-message-action:hover{border-color:color-mix(in srgb,var(--panel-border) 80%,transparent);background:linear-gradient(132deg,color-mix(in srgb,var(--panel) 78%,rgba(255,255,255,.18)),color-mix(in srgb,var(--panel) 92%,transparent))}[data-ui-theme=glassy] .chat-scroll-bottom,[data-ui-theme=glassy] .deck-actions-trigger{border:1px solid color-mix(in srgb,var(--panel-border) 84%,transparent);background:linear-gradient(132deg,color-mix(in srgb,var(--panel) 78%,rgba(255,255,255,.2)),color-mix(in srgb,var(--panel) 94%,transparent));box-shadow:inset 0 1px color-mix(in srgb,var(--glass-rim) 68%,transparent),0 10px 20px -20px var(--glass-depth-shadow);transition:border-color .16s ease,background .16s ease,color .16s ease,transform .16s ease}[data-ui-theme=glassy] .chat-scroll-bottom:hover,[data-ui-theme=glassy] .deck-actions-trigger:hover{border-color:color-mix(in srgb,var(--accent) 48%,var(--panel-border));background:linear-gradient(132deg,color-mix(in srgb,var(--panel) 74%,rgba(255,255,255,.24)),color-mix(in srgb,var(--panel) 92%,color-mix(in srgb,var(--accent) 10%,transparent)));transform:none}[data-ui-theme=glassy] .chat-floating-starter{background:transparent;box-shadow:none;border-radius:0}[data-ui-theme=glassy] .chat-floating-starter:hover{background:transparent;transform:none}[data-ui-theme=glassy] .reading-sidebar,[data-ui-theme=glassy] .reading-viewer:not(.reading-viewer-mobile-fullscreen),[data-ui-theme=glassy] .repetition-player-shell,[data-ui-theme=glassy] .notes-list-panel,[data-ui-theme=glassy] .notes-editor-panel,[data-ui-theme=glassy] .cloze-setup-panel,[data-ui-theme=glassy] .cloze-player-shell,[data-ui-theme=glassy] .chat-page,[data-ui-theme=glassy] .chat-shell,[data-ui-theme=glassy] .chat-main,[data-ui-theme=glassy] .chat-composer-stack,[data-ui-theme=glassy] .voice-page,[data-ui-theme=glassy] .voice-main{border:1px solid var(--panel-border);border-radius:12px;background:var(--panel);box-shadow:0 12px 24px -20px var(--glass-depth-shadow),inset 0 1px color-mix(in srgb,var(--glass-rim) 68%,transparent);backdrop-filter:blur(var(--glass-blur-soft)) saturate(var(--glass-saturation));-webkit-backdrop-filter:blur(var(--glass-blur-soft)) saturate(var(--glass-saturation))}[data-ui-theme=glassy][data-theme=light] .reading-sidebar,[data-ui-theme=glassy][data-theme=light] .reading-viewer:not(.reading-viewer-mobile-fullscreen),[data-ui-theme=glassy][data-theme=light] .repetition-player-shell,[data-ui-theme=glassy][data-theme=light] .notes-list-panel,[data-ui-theme=glassy][data-theme=light] .notes-editor-panel,[data-ui-theme=glassy][data-theme=light] .cloze-setup-panel,[data-ui-theme=glassy][data-theme=light] .cloze-player-shell,[data-ui-theme=glassy][data-theme=light] .chat-page,[data-ui-theme=glassy][data-theme=light] .chat-shell,[data-ui-theme=glassy][data-theme=light] .chat-main,[data-ui-theme=glassy][data-theme=light] .chat-composer-stack,[data-ui-theme=glassy][data-theme=light] .voice-page,[data-ui-theme=glassy][data-theme=light] .voice-main{background:color-mix(in srgb,var(--panel) 92%,rgba(255,255,255,.34))}[data-ui-theme=glassy] .playground-main-chat{border-radius:var(--radius-ui)!important;border:1px solid var(--panel-border)!important;background:var(--panel)!important;box-shadow:0 12px 24px -20px var(--glass-depth-shadow),inset 0 1px color-mix(in srgb,var(--glass-rim) 68%,transparent)!important;backdrop-filter:blur(var(--glass-blur-soft)) saturate(var(--glass-saturation))!important;-webkit-backdrop-filter:blur(var(--glass-blur-soft)) saturate(var(--glass-saturation))!important}[data-ui-theme=glassy] .chat-page.chat-transparent,[data-ui-theme=glassy] .chat-page.chat-transparent .chat-shell,[data-ui-theme=glassy] .chat-page.chat-transparent .chat-main,[data-ui-theme=glassy] .chat-page.chat-transparent .chat-composer-stack,[data-ui-theme=glassy] .chat-page.chat-transparent .chat-sidebar{border:none!important;background:transparent!important;box-shadow:none!important;backdrop-filter:none!important;-webkit-backdrop-filter:none!important}[data-ui-theme=glassy] .chat-page.chat-transparent .chat-composer-stack{isolation:isolate}[data-ui-theme=glassy] .chat-page.chat-transparent .chat-composer-stack:before{content:"";position:absolute;left:0;right:0;bottom:0;height:min(42vh,calc(var(--chat-composer-overlay-height) + 3rem));pointer-events:none;z-index:0;background:linear-gradient(180deg,transparent 0%,var(--glass-chat-composer-scrim-mid) 48%,var(--glass-chat-composer-scrim-bottom) 100%)}[data-ui-theme=glassy] .chat-composer{border:none;border-radius:0;background:transparent;box-shadow:none;backdrop-filter:none;-webkit-backdrop-filter:none}[data-ui-theme=glassy] .chat-composer textarea,[data-ui-theme=glassy] .chat-voice-composer{border:none;background:transparent;box-shadow:none;backdrop-filter:none;-webkit-backdrop-filter:none}[data-ui-theme=glassy] .chat-composer textarea:focus,[data-ui-theme=glassy] .chat-composer textarea:focus-visible,[data-ui-theme=glassy] .chat-voice-composer:focus{border:none;background:transparent;box-shadow:none}[data-ui-theme=glassy] .chat-page.chat-transparent .chat-composer textarea,[data-ui-theme=glassy] .chat-page.chat-transparent .chat-voice-composer{border:1px solid color-mix(in srgb,var(--panel-border) 88%,transparent)!important;background:#0a101cd6!important;box-shadow:0 10px 22px -20px var(--glass-depth-shadow),inset 0 1px color-mix(in srgb,var(--glass-rim) 72%,transparent),inset 0 0 0 1px color-mix(in srgb,var(--glass-rim) 30%,transparent)!important;backdrop-filter:blur(var(--glass-chat-composer-blur)) saturate(var(--glass-chat-composer-saturation))!important;-webkit-backdrop-filter:blur(var(--glass-chat-composer-blur)) saturate(var(--glass-chat-composer-saturation))!important}[data-ui-theme=glassy][data-theme=light] .chat-page.chat-transparent .chat-composer textarea,[data-ui-theme=glassy][data-theme=light] .chat-page.chat-transparent .chat-voice-composer{background:#f8fcff66!important}[data-ui-theme=glassy] .chat-page.chat-transparent .chat-composer textarea:focus,[data-ui-theme=glassy] .chat-page.chat-transparent .chat-composer textarea:focus-visible,[data-ui-theme=glassy] .chat-page.chat-transparent .chat-voice-composer:focus{border-color:color-mix(in srgb,var(--accent) 42%,var(--panel-border))!important;background:#080e18e6!important;box-shadow:0 12px 24px -20px var(--glass-depth-shadow),inset 0 1px color-mix(in srgb,var(--glass-rim) 76%,transparent),inset 0 0 0 1px color-mix(in srgb,var(--accent) 26%,transparent)!important}[data-ui-theme=glassy][data-theme=light] .chat-page.chat-transparent .chat-composer textarea:focus,[data-ui-theme=glassy][data-theme=light] .chat-page.chat-transparent .chat-composer textarea:focus-visible,[data-ui-theme=glassy][data-theme=light] .chat-page.chat-transparent .chat-voice-composer:focus{background:#fcfffff2!important}[data-ui-theme=glassy] .chat-page.chat-transparent .composer-input-wrapper{background:#0a101cd6;border-radius:var(--radius-ui)}[data-ui-theme=glassy][data-theme=light] .chat-page.chat-transparent .composer-input-wrapper{background:#f8fcff66}[data-ui-theme=glassy] .chat-page.chat-transparent .chat-thread-item,[data-ui-theme=glassy] .chat-page.chat-transparent .chat-bubble-assistant,[data-ui-theme=glassy] .chat-page.chat-transparent .chat-bubble-user,[data-ui-theme=glassy] .chat-page.chat-transparent .chat-scroll-bottom,[data-ui-theme=glassy] .chat-page.chat-transparent .chat-message-action{box-shadow:none!important;background-image:none!important}[data-ui-theme=glassy] .chat-page.chat-transparent .chat-thread-item{transform:none;backface-visibility:visible}[data-ui-theme=glassy] .chat-page.chat-transparent .chat-bubble-assistant{background:color-mix(in srgb,var(--panel) 92%,rgba(255,255,255,.08))}[data-ui-theme=glassy] .chat-page.chat-transparent .chat-bubble-user{background:color-mix(in srgb,var(--accent) 62%,rgba(255,255,255,.2))}[data-ui-theme=glassy] .repetition-list-toolbar__button[aria-pressed=true],[data-ui-theme=glassy] .repetition-list-toolbar__button.active{border-color:var(--accent)!important;color:var(--accent)}[data-ui-theme=glassy] .repetition-list-toolbar__toggle .mode-setup-segment{overflow:hidden;text-overflow:ellipsis;white-space:nowrap;padding-inline:.4rem}[data-ui-theme=glassy][data-theme=light] .language-space-dropdown{background:var(--glass-menu-bg);border-color:var(--panel-border)}[data-ui-theme=glassy] .reader-icon-flash{border:none}:root[data-ui-theme=retro]{--radius-ui: 0px;--retro-control-font: "American Typewriter", "Rockwell", "Roboto Slab", Georgia, serif;--retro-text-weight: 500;--bg: #1a0a2e;--bg-soft: #240e3e;--panel: #1e0c36;--panel-border: #ff2d95;--text: #f0e6ff;--accent: #ff2d95;--retro-cyan: #00e5ff;--retro-yellow: #ffe600;--retro-green: #39ff14;--retro-purple: #b026ff;--retro-orange: #ff6d00;--muted: #b89ee0;--success: #39ff14;--danger: #ff2d55;--retro-glow: rgba(255, 45, 149, .35);--retro-border: 3px solid var(--accent);--theme-btn-border-width: 1px;--theme-btn-border-color: var(--retro-cyan);--theme-btn-shadow: none;--theme-btn-hover-shadow: none;--theme-btn-active-shadow: none;--theme-btn-primary-border-color: var(--accent);--theme-btn-primary-shadow-hover: none;--theme-btn-ghost-border-color: var(--retro-cyan);--theme-btn-ghost-hover-border-color: var(--accent);--theme-sidebar-link-border-width: 1px;--theme-sidebar-link-border-color: var(--retro-cyan);--theme-sidebar-link-bg: var(--bg-soft);--theme-sidebar-link-shadow: none;--theme-sidebar-link-hover-border-color: var(--accent);--theme-sidebar-link-hover-bg: color-mix(in srgb, var(--accent) 12%, var(--bg-soft));--theme-sidebar-link-hover-shadow: none;--theme-sidebar-link-active-border-color: var(--accent);--theme-sidebar-link-active-shadow: none;--theme-input-border-width: 3px;--theme-input-border-color: var(--retro-cyan);--theme-input-bg: var(--bg);--theme-input-shadow: none;--theme-input-focus-border-color: var(--accent);--theme-input-focus-shadow: none;--theme-popup-select-border-width: 1px;--theme-popup-select-border-color: var(--retro-cyan);--theme-popup-select-bg: var(--bg);--theme-popup-select-shadow: none;--theme-popup-select-hover-border-color: var(--retro-cyan);--theme-popup-select-open-border-color: var(--accent);--theme-popup-select-open-shadow: none;--theme-tab-border-bottom-width: 3px;--theme-tab-border-color: var(--retro-cyan);--theme-tab-bg: var(--bg-soft);--theme-tab-shadow: none;--theme-tab-active-border-color: var(--accent);--theme-tab-active-bg: var(--accent);--theme-tab-active-shadow: none}:root[data-ui-theme=retro][data-theme=light]{--bg: #e8dff5;--bg-soft: #f5f0ff;--panel: #fff;--panel-border: #c81878;--text: #1a0a2e;--accent: #c81878;--retro-cyan: #0097a7;--retro-yellow: #c6a800;--retro-green: #1db50e;--retro-purple: #7b1fa2;--retro-orange: #d45600;--muted: #5c4180;--success: #1db50e;--danger: #c81848;--retro-glow: rgba(200, 24, 120, .18);--retro-border: 3px solid var(--accent);--theme-btn-shadow: none;--theme-btn-hover-shadow: none;--theme-btn-active-shadow: none;--theme-btn-primary-shadow-hover: none;--theme-sidebar-link-shadow: none;--theme-sidebar-link-hover-shadow: none;--theme-sidebar-link-active-shadow: none}[data-ui-theme=retro] body{font-family:Courier New,Lucida Console,Monaco,monospace;background-color:var(--bg);color:var(--text);letter-spacing:.03em;background-image:repeating-linear-gradient(0deg,transparent,transparent 3px,rgba(255,45,149,.03) 3px,rgba(255,45,149,.03) 4px)}[data-ui-theme=retro][data-theme=light] body{background-image:repeating-linear-gradient(0deg,transparent,transparent 3px,rgba(200,24,120,.04) 3px,rgba(200,24,120,.04) 4px)}[data-ui-theme=retro] h1,[data-ui-theme=retro] h2,[data-ui-theme=retro] h3,[data-ui-theme=retro] h4{font-weight:500;text-transform:uppercase;letter-spacing:.12em;color:var(--retro-cyan);text-shadow:2px 2px 0 var(--retro-purple)}[data-ui-theme=retro][data-theme=light] h1,[data-ui-theme=retro][data-theme=light] h2,[data-ui-theme=retro][data-theme=light] h3,[data-ui-theme=retro][data-theme=light] h4{text-shadow:1px 1px 0 rgba(123,31,162,.25)}[data-ui-theme=retro] .topbar{border-bottom:4px solid var(--accent);background:var(--panel);box-shadow:0 4px 0 0 var(--retro-purple)}[data-ui-theme=retro] .eyebrow{background:transparent;color:var(--retro-yellow);font-weight:500;text-transform:uppercase;letter-spacing:.15em}[data-ui-theme=retro] .panel{border:2px solid var(--accent);border-radius:0;background:var(--panel);box-shadow:6px 6px 0 0 var(--retro-purple),inset 0 0 20px -8px var(--retro-glow);position:relative}[data-ui-theme=retro] .panel:after{content:"";position:absolute;top:0;left:0;right:0;height:1px;background:linear-gradient(90deg,var(--retro-cyan),var(--accent),var(--retro-yellow),var(--retro-green));pointer-events:none}[data-ui-theme=retro] .btn,[data-ui-theme=retro] .icon-btn{border:2px solid var(--retro-cyan);border-radius:0;background:var(--bg-soft);color:var(--text);font-weight:500;text-transform:uppercase;letter-spacing:.08em;font-family:Courier New,Lucida Console,Monaco,monospace;transition:all .1s ease;box-shadow:4px 4px 0 0 var(--retro-cyan)}[data-ui-theme=retro] .btn.primary{background:var(--accent);color:#fff;border-color:var(--accent);box-shadow:4px 4px 0 0 var(--retro-purple);text-shadow:1px 1px 0 rgba(0,0,0,.3)}[data-ui-theme=retro] .btn:hover,[data-ui-theme=retro] .icon-btn:hover{transform:none;box-shadow:2px 2px 0 0 var(--retro-cyan);background:color-mix(in srgb,var(--retro-cyan) 12%,var(--bg-soft))}[data-ui-theme=retro] .btn.primary:hover{box-shadow:2px 2px 0 0 var(--retro-purple);background:color-mix(in srgb,var(--accent) 85%,white)}[data-ui-theme=retro] .btn:active,[data-ui-theme=retro] .icon-btn:active{transform:translate(4px,4px);box-shadow:0 0 0 0 var(--retro-cyan)}[data-ui-theme=retro] .btn[aria-pressed]:active,[data-ui-theme=retro] .icon-btn[aria-pressed]:active{transform:none;box-shadow:4px 4px 0 0 var(--retro-cyan)}[data-ui-theme=retro] .btn.primary:active{transform:translate(4px,4px);box-shadow:0 0 0 0 var(--retro-purple)}[data-ui-theme=retro] .lesson-topbar .lesson-close-btn,[data-ui-theme=retro] .lesson-topbar .lesson-theme-btn,[data-ui-theme=retro] .lesson-topbar .lesson-audio-btn,[data-ui-theme=retro] .lesson-report-floating-btn{border:2px solid var(--retro-cyan);border-radius:0;background:var(--panel);color:var(--text);box-shadow:3px 3px 0 0 var(--retro-purple)}[data-ui-theme=retro] .lesson-topbar .lesson-close-btn{background:color-mix(in srgb,var(--accent) 20%,var(--panel));border-color:var(--accent)}[data-ui-theme=retro] .lesson-topbar .lesson-close-btn:hover,[data-ui-theme=retro] .lesson-topbar .lesson-theme-btn:hover,[data-ui-theme=retro] .lesson-topbar .lesson-audio-btn:hover,[data-ui-theme=retro] .lesson-report-floating-btn:hover{transform:none;box-shadow:1px 1px 0 0 var(--retro-purple)}[data-ui-theme=retro] .lesson-topbar .lesson-close-btn:active,[data-ui-theme=retro] .lesson-topbar .lesson-theme-btn:active,[data-ui-theme=retro] .lesson-topbar .lesson-audio-btn:active,[data-ui-theme=retro] .lesson-report-floating-btn:active{transform:translate(3px,3px);box-shadow:0 0 0 0 var(--retro-purple)}[data-ui-theme=retro] .selection-action-btn{border:2px solid var(--retro-cyan);border-radius:0;background:var(--bg-soft);color:var(--text);box-shadow:3px 3px 0 0 var(--retro-cyan)}[data-ui-theme=retro] .selection-action-btn.primary{background:var(--accent);color:#fff;border-color:var(--accent);box-shadow:3px 3px 0 0 var(--retro-purple)}[data-ui-theme=retro] .selection-action-btn:hover:not(:disabled){transform:none;box-shadow:1px 1px 0 0 var(--retro-cyan);color:var(--text);border-color:var(--retro-cyan)}[data-ui-theme=retro] .selection-action-btn.primary:hover:not(:disabled){color:#fff;box-shadow:1px 1px 0 0 var(--retro-purple)}[data-ui-theme=retro] .selection-action-btn:active:not(:disabled){transform:translate(3px,3px);box-shadow:0 0 0 0 var(--retro-cyan)}[data-ui-theme=retro] .playground-card,[data-ui-theme=retro] .document-row{border:3px solid var(--retro-cyan);border-radius:0;background:var(--bg-soft);box-shadow:5px 5px 0 0 var(--retro-yellow);transition:all .15s ease}[data-ui-theme=retro] .playground-card:hover,[data-ui-theme=retro] .document-row:hover,[data-ui-theme=retro] .document-row.active{transform:translate(-3px,-3px);box-shadow:8px 8px 0 0 var(--accent);border-color:var(--accent)}[data-ui-theme=retro] .tabbar{border-bottom:3px solid var(--accent)}[data-ui-theme=retro] .tab,[data-ui-theme=retro] .playground-tab{border:3px solid var(--retro-cyan);border-radius:0;font-weight:500;text-transform:uppercase;letter-spacing:.06em;background:var(--bg-soft)}[data-ui-theme=retro] .tab-active,[data-ui-theme=retro] .playground-tab.active{background:var(--accent);color:#fff;border-color:var(--accent)}[data-ui-theme=retro] input:not([type=radio]):not([type=checkbox]):not([type=range]),[data-ui-theme=retro] textarea,[data-ui-theme=retro] .popup-select-trigger{border:3px solid var(--retro-cyan);border-radius:0;font-weight:500;background:var(--bg);font-family:Courier New,Lucida Console,Monaco,monospace;color:var(--text);box-shadow:inset 3px 3px #00e5ff14}[data-ui-theme=retro] .popup-select-trigger{border-width:1px;box-shadow:inset 1px 1px #00e5ff14}[data-ui-theme=retro] input:not([type=radio]):not([type=checkbox]):not([type=range]):focus,[data-ui-theme=retro] textarea:focus,[data-ui-theme=retro] .popup-select-trigger.open{outline:none;border-color:var(--accent);box-shadow:0 0 0 2px var(--retro-glow)}[data-ui-theme=retro] input[type=radio],[data-ui-theme=retro] input[type=checkbox]{border:2px solid var(--retro-cyan);box-shadow:none;background:var(--panel);border-radius:0}[data-ui-theme=retro] .user-menu-trigger,[data-ui-theme=retro] .theme-toggle,[data-ui-theme=retro] .icon-btn{border:2px solid var(--retro-cyan);border-radius:0;box-shadow:3px 3px 0 0 var(--retro-purple)}[data-ui-theme=retro] .document-row{box-shadow:none}[data-ui-theme=retro] .document-row:hover,[data-ui-theme=retro] .document-row.active{transform:none;box-shadow:6px 6px 0 0 var(--accent)}[data-ui-theme=retro] .chat-page{border:3px solid var(--accent);border-radius:0;box-shadow:8px 8px #b026ff4d;background:var(--panel)}[data-ui-theme=retro] .voice-page{border:0;border-radius:0;box-shadow:8px 8px #b026ff4d;background:var(--panel)}[data-ui-theme=retro] .chat-sidebar{border-right:3px solid var(--accent);background:var(--bg-soft)}[data-ui-theme=retro] .chat-main,[data-ui-theme=retro] .voice-main{background:var(--panel)}[data-ui-theme=retro] .chat-thread-item{border:2px solid transparent;border-radius:0;background:transparent}[data-ui-theme=retro] .chat-thread-item:hover,[data-ui-theme=retro] .chat-thread-row.active .chat-thread-item{border-color:var(--retro-cyan);background:var(--panel);box-shadow:none}[data-ui-theme=retro] .chat-thread-new{border:3px solid var(--retro-cyan);border-radius:0;box-shadow:4px 4px 0 0 var(--retro-cyan)}[data-ui-theme=retro] .chat-send-btn{border:2px solid var(--accent);border-radius:0;background:var(--accent);color:#fff;box-shadow:3px 3px 0 0 var(--retro-purple)}[data-ui-theme=retro] .chat-send-btn:hover:not(:disabled){transform:none;border-color:var(--accent);background:color-mix(in srgb,var(--accent) 85%,white);box-shadow:1px 1px 0 0 var(--retro-purple)}[data-ui-theme=retro] .chat-send-btn:active:not(:disabled){transform:translate(3px,3px);box-shadow:0 0 0 0 var(--retro-purple)}[data-ui-theme=retro] .voice-visualizer-shell,[data-ui-theme=retro] .voice-transcript-shell,[data-ui-theme=retro] .voice-wave-card,[data-ui-theme=retro] .voice-turn-card{border:3px solid var(--retro-cyan);border-radius:0;background:var(--panel)}[data-ui-theme=retro] .user-menu .user-menu-popover,:root[data-ui-theme=retro] .user-menu-popover{border:3px solid var(--accent);border-radius:0;background:var(--panel);box-shadow:6px 6px 0 0 var(--retro-purple);min-width:184px;max-width:min(232px,calc(100vw - 24px));z-index:1250}[data-ui-theme=retro] .user-menu .user-menu-name,:root[data-ui-theme=retro] .user-menu-name{color:var(--retro-yellow);border-bottom:2px solid var(--accent);font-weight:500;text-transform:uppercase;letter-spacing:.06em}[data-ui-theme=retro] .user-menu .user-menu-item,:root[data-ui-theme=retro] .user-menu-item{border:2px solid transparent;background:transparent;color:var(--text);font-weight:500;text-transform:uppercase;letter-spacing:.04em;white-space:nowrap;font-family:Courier New,Lucida Console,Monaco,monospace}[data-ui-theme=retro] .user-menu .user-menu-item:hover,:root[data-ui-theme=retro] .user-menu-item:hover{border-color:var(--retro-cyan);background:color-mix(in srgb,var(--retro-cyan) 15%,var(--panel))}[data-ui-theme=retro] .user-menu .user-menu-item.danger,:root[data-ui-theme=retro] .user-menu-item.danger{color:var(--danger)}[data-ui-theme=retro] .repetition-sidebar .mode-tabs .tab,[data-ui-theme=retro] .reading-sidebar .mode-tabs .tab{border:none;border-right:3px solid var(--accent);border-radius:0;padding-left:.5rem;padding-right:.5rem}[data-ui-theme=retro] .repetition-sidebar .mode-tabs,[data-ui-theme=retro] .reading-sidebar .mode-tabs{border:3px solid var(--accent);border-radius:0}[data-ui-theme=retro] .repetition-sidebar .mode-tabs .tab:last-child,[data-ui-theme=retro] .reading-sidebar .mode-tabs .tab:last-child{border-right:none}[data-ui-theme=retro] .context-menu,[data-ui-theme=retro] .selection-action-menu{border:3px solid var(--accent);border-radius:0;box-shadow:6px 6px #b026ff4d}[data-ui-theme=retro] .context-menu-item{border:2px solid transparent;text-transform:uppercase;letter-spacing:.04em;font-weight:500;border-radius:0}[data-ui-theme=retro] .context-menu-item:hover{border-color:var(--retro-cyan);background:color-mix(in srgb,var(--retro-cyan) 12%,var(--bg-soft))}[data-ui-theme=retro][data-theme=light] .tab-active,[data-ui-theme=retro][data-theme=light] .playground-tab.active{background:var(--accent);color:#fff}[data-ui-theme=retro][data-theme=dark] .panel{box-shadow:6px 6px color-mix(in srgb,var(--retro-purple) 60%,#0a0516),inset 0 0 20px -8px var(--retro-glow)}[data-ui-theme=retro][data-theme=dark] .btn,[data-ui-theme=retro][data-theme=dark] .icon-btn{box-shadow:4px 4px color-mix(in srgb,var(--retro-cyan) 50%,#0a0516)}[data-ui-theme=retro][data-theme=dark] .btn:hover,[data-ui-theme=retro][data-theme=dark] .icon-btn:hover{box-shadow:2px 2px color-mix(in srgb,var(--retro-cyan) 50%,#0a0516)}[data-ui-theme=retro][data-theme=dark] .btn[aria-pressed]:active,[data-ui-theme=retro][data-theme=dark] .icon-btn[aria-pressed]:active{box-shadow:4px 4px color-mix(in srgb,var(--retro-cyan) 50%,#0a0516)}[data-ui-theme=retro][data-theme=dark] .btn.primary{box-shadow:4px 4px color-mix(in srgb,var(--retro-purple) 60%,#0a0516)}[data-ui-theme=retro][data-theme=dark] .btn.primary:hover{box-shadow:2px 2px color-mix(in srgb,var(--retro-purple) 60%,#0a0516)}[data-ui-theme=retro][data-theme=dark] .user-menu-trigger,[data-ui-theme=retro][data-theme=dark] .theme-toggle{box-shadow:3px 3px color-mix(in srgb,var(--retro-purple) 50%,#0a0516)}[data-ui-theme=retro][data-theme=dark] .chat-page,[data-ui-theme=retro][data-theme=dark] .voice-page{box-shadow:8px 8px color-mix(in srgb,var(--retro-purple) 40%,transparent)}[data-ui-theme=retro][data-theme=dark] .chat-thread-new{box-shadow:4px 4px color-mix(in srgb,var(--retro-cyan) 50%,#0a0516)}[data-ui-theme=retro][data-theme=dark] .chat-send-btn,[data-ui-theme=retro][data-theme=dark] .selection-action-btn,[data-ui-theme=retro][data-theme=dark] .selection-action-btn.primary{box-shadow:3px 3px color-mix(in srgb,var(--retro-purple) 50%,#0a0516)}[data-ui-theme=retro][data-theme=dark] .user-menu .user-menu-popover,:root[data-ui-theme=retro][data-theme=dark] .user-menu-popover{box-shadow:6px 6px color-mix(in srgb,var(--retro-purple) 40%,#0a0516)}[data-ui-theme=retro][data-theme=dark] .context-menu,[data-ui-theme=retro][data-theme=dark] .selection-action-menu{box-shadow:6px 6px color-mix(in srgb,var(--retro-purple) 30%,transparent)}[data-ui-theme=retro][data-theme=dark] .lesson-topbar .lesson-close-btn,[data-ui-theme=retro][data-theme=dark] .lesson-topbar .lesson-theme-btn,[data-ui-theme=retro][data-theme=dark] .lesson-topbar .lesson-audio-btn,[data-ui-theme=retro][data-theme=dark] .lesson-report-floating-btn{box-shadow:3px 3px color-mix(in srgb,var(--retro-purple) 50%,#0a0516)}[data-ui-theme=retro] .panel,[data-ui-theme=retro] .topbar{background:transparent;background-color:transparent}[data-ui-theme=retro] button,[data-ui-theme=retro] .global-sidebar-link,[data-ui-theme=retro] .global-sidebar-subnav-link,[data-ui-theme=retro] .playground-overview-mode,[data-ui-theme=retro] .btn,[data-ui-theme=retro] .icon-btn,[data-ui-theme=retro] .selection-action-btn,[data-ui-theme=retro] .chat-send-btn,[data-ui-theme=retro] .tab,[data-ui-theme=retro] .playground-tab,[data-ui-theme=retro] .mode-setup-segment,[data-ui-theme=retro] .chat-thread-item,[data-ui-theme=retro] .chat-bubble,[data-ui-theme=retro] .chat-composer textarea,[data-ui-theme=retro] .repetition-header__title,[data-ui-theme=retro] .repetition-header__search-input,[data-ui-theme=retro] .repetition-deck-list-scroll .document-row,[data-ui-theme=retro] .list-mode-table,[data-ui-theme=retro] .list-mode-table td,[data-ui-theme=retro] .list-star-btn,[data-ui-theme=retro] .list-mode-area .muted,[data-ui-theme=retro] .deck-actions-trigger,[data-ui-theme=retro] .deck-actions-item,[data-ui-theme=retro] .deck-actions-label,[data-ui-theme=retro] .deck-setup-topbar,[data-ui-theme=retro] .deck-setup-table,[data-ui-theme=retro] .context-menu-item,[data-ui-theme=retro] .user-menu-item,[data-ui-theme=retro] .notes-new-note-menu-item,[data-ui-theme=retro] .sidebar-link-label,[data-ui-theme=retro] .playground-overview-mode-label{font-family:var(--retro-control-font);font-weight:var(--retro-text-weight);letter-spacing:.05em}[data-ui-theme=retro] h1,[data-ui-theme=retro] h2,[data-ui-theme=retro] h3,[data-ui-theme=retro] h4,[data-ui-theme=retro] .eyebrow,[data-ui-theme=retro] .user-menu .user-menu-name,:root[data-ui-theme=retro] .user-menu-name,[data-ui-theme=retro] input:not([type=radio]):not([type=checkbox]):not([type=range]),[data-ui-theme=retro] textarea,[data-ui-theme=retro] .popup-select-trigger{font-weight:var(--retro-text-weight)}[data-ui-theme=retro] .global-sidebar-link,[data-ui-theme=retro] .global-sidebar-subnav-link,[data-ui-theme=retro] .playground-overview-mode{text-transform:uppercase}[data-ui-theme=retro] .reading-viewer button,[data-ui-theme=retro] .reading-sidebar .document-row,[data-ui-theme=retro] .reading-viewer .btn,[data-ui-theme=retro] .reading-viewer .icon-btn,[data-ui-theme=retro] .reading-viewer .tab,[data-ui-theme=retro] .reading-viewer .playground-tab,[data-ui-theme=retro] .reading-viewer .mode-setup-segment,[data-ui-theme=retro] .reading-viewer-mobile-fullscreen button,[data-ui-theme=retro] .reading-viewer-mobile-fullscreen .btn,[data-ui-theme=retro] .reading-viewer-mobile-fullscreen .icon-btn,[data-ui-theme=retro] .reading-viewer-mobile-fullscreen .tab,[data-ui-theme=retro] .reading-viewer-mobile-fullscreen .playground-tab,[data-ui-theme=retro] .reading-viewer-mobile-fullscreen .mode-setup-segment,[data-ui-theme=retro] .reading-viewer-mobile-fullscreen .document-row{font-family:Courier New,Lucida Console,Monaco,monospace;letter-spacing:inherit}[data-ui-theme=retro] button,[data-ui-theme=retro] [type=button],[data-ui-theme=retro] [type=submit],[data-ui-theme=retro] [type=reset],[data-ui-theme=retro] .btn,[data-ui-theme=retro] .icon-btn,[data-ui-theme=retro] .selection-action-btn,[data-ui-theme=retro] .theme-toggle,[data-ui-theme=retro] .user-menu-trigger,[data-ui-theme=retro] .chat-send-btn,[data-ui-theme=retro] .chat-thread-new,[data-ui-theme=retro] .tab,[data-ui-theme=retro] .playground-tab,[data-ui-theme=retro] .context-menu-item{border-radius:0!important}[data-ui-theme=retro] h1,[data-ui-theme=retro] h2,[data-ui-theme=retro] h3,[data-ui-theme=retro] h4,[data-ui-theme=retro] .btn,[data-ui-theme=retro] .icon-btn,[data-ui-theme=retro] .selection-action-btn,[data-ui-theme=retro] .chat-send-btn,[data-ui-theme=retro] .panel,[data-ui-theme=retro] .topbar,[data-ui-theme=retro] .playground-card,[data-ui-theme=retro] .document-row,[data-ui-theme=retro] .chat-page,[data-ui-theme=retro] .voice-page,[data-ui-theme=retro] .chat-thread-item,[data-ui-theme=retro] .chat-thread-new,[data-ui-theme=retro] .voice-visualizer-shell,[data-ui-theme=retro] .voice-transcript-shell,[data-ui-theme=retro] .voice-wave-card,[data-ui-theme=retro] .voice-turn-card,[data-ui-theme=retro] .user-menu .user-menu-popover,:root[data-ui-theme=retro] .user-menu-popover,[data-ui-theme=retro] .context-menu,[data-ui-theme=retro] .selection-action-menu,[data-ui-theme=retro] .lesson-topbar .lesson-close-btn,[data-ui-theme=retro] .lesson-topbar .lesson-theme-btn,[data-ui-theme=retro] .lesson-topbar .lesson-audio-btn,[data-ui-theme=retro] .lesson-report-floating-btn{box-shadow:none!important;text-shadow:none!important}[data-ui-theme=retro] .btn:active,[data-ui-theme=retro] .icon-btn:active,[data-ui-theme=retro] .btn.primary:active,[data-ui-theme=retro] .selection-action-btn:active:not(:disabled),[data-ui-theme=retro] .chat-send-btn:active:not(:disabled),[data-ui-theme=retro] .lesson-topbar .lesson-close-btn:active,[data-ui-theme=retro] .lesson-topbar .lesson-theme-btn:active,[data-ui-theme=retro] .lesson-topbar .lesson-audio-btn:active,[data-ui-theme=retro] .lesson-report-floating-btn:active,[data-ui-theme=retro] .playground-card:hover,[data-ui-theme=retro] .document-row:hover,[data-ui-theme=retro] .document-row.active{transform:none}[data-ui-theme=retro] input:not([type=radio]):not([type=checkbox]):not([type=range]):focus,[data-ui-theme=retro] input:not([type=radio]):not([type=checkbox]):not([type=range]):focus-visible,[data-ui-theme=retro] textarea:focus,[data-ui-theme=retro] textarea:focus-visible,[data-ui-theme=retro] .popup-select-trigger.open,[data-ui-theme=retro] .popup-select-trigger:focus-visible{outline:2px solid var(--accent);outline-offset:1px;box-shadow:none!important}[data-ui-theme=retro] .reading-sidebar,[data-ui-theme=retro] .reading-viewer:not(.reading-viewer-mobile-fullscreen),[data-ui-theme=retro] .notes-page,[data-ui-theme=retro] .notes-list-panel,[data-ui-theme=retro] .notes-editor-panel,[data-ui-theme=retro] .cloze-mode-shell,[data-ui-theme=retro] .cloze-setup-panel,[data-ui-theme=retro] .cloze-player-shell,[data-ui-theme=retro] .repetition-player-shell,[data-ui-theme=retro] .repetition-empty-state-card{border:none!important;box-shadow:none!important}[data-ui-theme=retro] .reading-sidebar:after,[data-ui-theme=retro] .reading-viewer:not(.reading-viewer-mobile-fullscreen):after{content:none!important}[data-ui-theme=retro] .truncated{font-weight:500}[data-ui-theme=retro] .playground-header-title,[data-ui-theme=retro] .reading-document-header{font-family:var(--retro-control-font);font-size:clamp(1.175rem,calc(1.25rem + .275vw),1.4rem)}[data-ui-theme=retro] .reading-document-title{font-family:var(--retro-control-font)}[data-ui-theme=retro] .btn.accent-button{border:3px solid var(--retro-cyan)}.btn{border-radius:12px!important;transition:all .15s cubic-bezier(.4,0,.2,1)!important}.course-roadmap-scroll{overflow-x:hidden!important;overflow-y:visible!important;max-height:none!important;padding:2rem 1rem!important;height:auto!important;scroll-behavior:auto;scroll-snap-type:none;background:radial-gradient(circle at 50% 50%,color-mix(in srgb,var(--accent) 8%,transparent) 0%,transparent 60%)}.course-roadmap-track{position:relative;flex-direction:column!important;align-items:center!important;gap:64px!important;width:100%!important;padding:64px 0!important}.course-roadmap-svg-curve{display:block!important}.course-roadmap-track:before{display:none!important}.course-roadmap-station{position:relative;z-index:2;width:auto!important;flex-basis:auto!important}.course-roadmap-station:nth-child(4n+1){transform:translate(0) translateY(var(--roadmap-offset))!important}.course-roadmap-station:nth-child(4n+2){transform:translate(10px) translateY(var(--roadmap-offset))!important}.course-roadmap-station:nth-child(4n+3){transform:translate(110px) translateY(var(--roadmap-offset))!important}.course-roadmap-station:nth-child(4n+4){transform:translate(-10px) translateY(var(--roadmap-offset))!important}.course-roadmap-station:nth-child(4n+5){transform:translate(-110px) translateY(var(--roadmap-offset))!important}.course-roadmap-node-btn{width:90px!important;height:90px!important;border-radius:0!important;border:none!important;border-bottom:0!important;background:transparent!important;box-shadow:none!important;transition:transform .15s cubic-bezier(.4,0,.2,1),border-bottom-width .15s!important}.course-roadmap-node-btn:hover:not(:disabled){transform:none!important;border-bottom-width:0!important}.course-roadmap-node-btn:active:not(:disabled){transform:none!important;border-bottom-width:0px!important}.course-roadmap-station.status-current .course-roadmap-node-btn{border-color:transparent!important;border-bottom:0!important;animation:pulse-node 2s infinite alternate}.course-roadmap-station.status-completed .course-roadmap-node-btn{background:transparent!important;color:inherit!important;border-bottom:0!important}@keyframes pulse-node{0%{box-shadow:0 0 color-mix(in srgb,var(--accent) 60%,transparent)}70%{box-shadow:0 0 0 20px color-mix(in srgb,var(--accent) 0%,transparent)}to{box-shadow:0 0 color-mix(in srgb,var(--accent) 0%,transparent)}}.course-roadmap-station-copy{position:absolute;top:50%;left:120%;transform:translateY(-50%);width:max-content;min-width:0;max-width:min(650px,calc(100vw - 2rem))!important;display:flex;flex-direction:column;align-items:flex-start;gap:.18rem;text-align:left;background:var(--panel);padding:.6rem 1rem;border-radius:12px;box-shadow:0 4px 16px #00000014;border:1px solid var(--panel-border);opacity:0;pointer-events:none;transition:opacity .2s,transform .2s}.course-roadmap-station-copy>*{margin:0!important;max-width:100%;white-space:normal;overflow-wrap:break-word;word-break:normal}.course-roadmap-station-title{overflow:visible;text-overflow:clip}.course-roadmap-station:nth-child(4n+4) .course-roadmap-station-copy,.course-roadmap-station:nth-child(4n+5) .course-roadmap-station-copy{left:auto;right:120%;align-items:flex-end;text-align:right}.course-roadmap-station:hover .course-roadmap-station-copy{opacity:1;pointer-events:auto;transform:translateY(-50%) scale(1.05);z-index:10}.course-roadmap-state{display:none!important}.mascot-container{position:fixed;bottom:30px;right:30px;width:140px;height:140px;z-index:1000;pointer-events:none;filter:drop-shadow(0 10px 20px rgba(0,0,0,.15))}.mascot-rune{position:absolute;bottom:50px;font-weight:700;z-index:1}.confetti-overlay{position:fixed;top:0;left:0;width:100vw;height:100vh;pointer-events:none;z-index:10000;overflow:hidden}.confetti-piece{position:absolute;top:-20px;opacity:.9;border-radius:2px;animation:confetti-fall linear infinite;box-shadow:0 2px 4px #0000001a}@keyframes confetti-fall{0%{transform:translateY(-5vh) rotate(0);opacity:1}80%{opacity:1}to{transform:translateY(105vh) rotate(720deg);opacity:0}}.mascot-unlock-modal{max-width:420px;text-align:center;z-index:10001}.mascot-unlock-modal .modal-body{padding:3rem 1.5rem}.mascot-unlock-content{display:flex;flex-direction:column;align-items:center}.mascot-unlock-image-wrap{width:160px;height:160px;margin-bottom:1.5rem;animation:mascotDropIn .7s cubic-bezier(.34,1.56,.64,1) both}.mascot-unlock-image{width:100%;height:100%;object-fit:contain;filter:drop-shadow(0 15px 30px rgba(0,0,0,.25));animation:mascotFloat 3.5s ease-in-out infinite alternate;animation-delay:.7s}@keyframes mascotDropIn{0%{transform:scale(.3) translateY(-100px) rotate(-15deg);opacity:0}to{transform:scale(1) translateY(0) rotate(0);opacity:1}}@keyframes mascotFloat{0%{transform:translateY(0)}to{transform:translateY(-14px)}}.mascot-unlock-kicker{margin:0;font-weight:700;color:var(--muted);text-transform:uppercase;letter-spacing:.08em;font-size:clamp(.799rem,calc(.85rem + .187vw),.952rem);margin-top:1rem}.mascot-unlock-title{margin:0;color:var(--accent);font-size:clamp(2.068rem,calc(2.2rem + .484vw),2.464rem);font-weight:900;line-height:1.1;letter-spacing:-.02em}.mascot-unlock-name{margin:.4rem 0 1rem;font-size:clamp(1.692rem,calc(1.8rem + .396vw),2.016rem);font-weight:800}.mascot-badge-wrap{margin:0 0 1.2rem;display:flex;justify-content:center}.mascot-badge{font-size:clamp(.752rem,calc(.8rem + .176vw),.896rem);background:var(--accent);color:#fff;padding:.35rem .75rem;border-radius:12px;font-weight:700;text-transform:uppercase;letter-spacing:.05em;box-shadow:0 4px 12px color-mix(in srgb,var(--accent) 30%,transparent)}.mascot-unlock-desc{margin:0;color:var(--muted);font-size:clamp(.987rem,calc(1.05rem + .231vw),1.176rem);line-height:1.6;margin-bottom:2rem}.mascot-unlock-btn{width:100%;padding:1rem!important;font-size:clamp(1.034rem,calc(1.1rem + .242vw),1.232rem)!important;font-weight:700!important}:root{--gamified-shimmer-bg: linear-gradient( to bottom right, rgba(255, 255, 255, 0) 0%, rgba(255, 255, 255, 0) 40%, rgba(255, 255, 255, .4) 50%, rgba(255, 255, 255, 0) 60%, rgba(255, 255, 255, 0) 100% );--gamified-levelup-bg: linear-gradient(135deg, color-mix(in srgb, var(--accent) 15%, var(--panel)) 0%, color-mix(in srgb, var(--accent) 40%, var(--panel)) 100%);--gamified-levelup-border: 1px solid var(--accent);--gamified-levelup-shadow: 0 8px 32px color-mix(in srgb, var(--accent) 40%, transparent);--gamified-bonus-bg: linear-gradient(135deg, color-mix(in srgb, #e6a23c 15%, var(--panel)) 0%, color-mix(in srgb, #f56c6c 30%, var(--panel)) 100%);--gamified-bonus-border: 1px solid #e6a23c;--gamified-bonus-shadow: 0 8px 32px color-mix(in srgb, #e6a23c 40%, transparent);--gamified-bonus-color: color-mix(in white 80%, black);--gamified-goal-shadow-1: 0 0 0px 0px color-mix(in srgb, var(--success) 30%, transparent);--gamified-goal-shadow-2: 0 0 15px 3px color-mix(in srgb, var(--success) 55%, transparent)}:root[data-ui-theme=bauhaus]{--gamified-shimmer-bg: linear-gradient(to right, transparent 0%, transparent 48%, rgba(255,255,255,.85) 50%, transparent 52%, transparent 100%);--gamified-levelup-bg: var(--panel);--gamified-levelup-border: 4px solid var(--text);--gamified-levelup-shadow: 8px 8px 0 0 var(--accent);--gamified-bonus-bg: var(--bauhaus-yellow, #ffcc00);--gamified-bonus-border: 4px solid var(--text);--gamified-bonus-shadow: 8px 8px 0 0 var(--text);--gamified-bonus-color: var(--text);--gamified-goal-shadow-1: 6px 6px 0 0 var(--text);--gamified-goal-shadow-2: 12px 12px 0 0 var(--success)}:root[data-ui-theme=art-deco]{--gamified-shimmer-bg: linear-gradient(to bottom right, transparent 0%, transparent 40%, rgba(212, 175, 55, .4) 50%, transparent 60%, transparent 100%);--gamified-levelup-bg: linear-gradient(135deg, #1a1a1a 0%, #2a2a2a 100%);--gamified-levelup-border: 1px solid #d4af37;--gamified-levelup-shadow: 0 4px 15px rgba(212, 175, 55, .4);--gamified-bonus-bg: #d4af37;--gamified-bonus-border: 1px solid #fff;--gamified-bonus-shadow: 0 4px 15px rgba(212, 175, 55, .6);--gamified-bonus-color: #111;--gamified-goal-shadow-1: 0 0 0 1px #d4af37;--gamified-goal-shadow-2: 0 4px 12px rgba(212, 175, 55, .8)}.multiple-choice-option,.bonus-round-option,.matching-item{position:relative}.multiple-choice-option.correct,.bonus-round-option.correct,.matching-item.matched,.multiple-choice-option.wrong,.bonus-round-option.wrong,.matching-item.wrong{animation:none!important;transform:none!important;box-shadow:none!important;z-index:auto}.xp-toast.level_up{background:var(--gamified-levelup-bg)!important;border:var(--gamified-levelup-border)!important;box-shadow:var(--gamified-levelup-shadow)!important;transform-origin:center bottom;animation:xpToastPremiumBurst .6s cubic-bezier(.34,1.56,.64,1) forwards!important;font-size:clamp(.94rem,calc(1rem + .22vw),1.12rem)!important}.xp-toast.bonus_round{background:var(--gamified-bonus-bg)!important;border:var(--gamified-bonus-border)!important;color:var(--gamified-bonus-color)!important;box-shadow:var(--gamified-bonus-shadow)!important;animation:xpToastPremiumBurst .6s cubic-bezier(.34,1.56,.64,1) forwards!important}@keyframes xpToastPremiumBurst{0%{transform:translateY(20px) scale(.8);opacity:0;filter:brightness(2)}50%{transform:translateY(-8px) scale(1.03);filter:brightness(1.3)}to{transform:translateY(0) scale(1);opacity:1;filter:brightness(1)}}.goal-pill-done{color:var(--pill-strong-text)!important;border-color:color-mix(in srgb,var(--success) 65%,transparent)!important;position:relative;z-index:5}.goal-pill-complete{animation:goalPillPop .6s cubic-bezier(.34,1.56,.64,1) forwards!important}@keyframes goalPillPop{0%{transform:scale(1)}30%{transform:scale(1.15) rotate(-3deg)}60%{transform:scale(.95) rotate(2deg)}to{transform:scale(1) rotate(0)}}@keyframes goalPillGlow{0%{box-shadow:var(--gamified-goal-shadow-1)!important}to{box-shadow:var(--gamified-goal-shadow-2)!important}}:root[data-theme-accent-enabled=true][data-theme-accent="0"]{--accent: var(--theme-0)}:root[data-theme-accent-enabled=true][data-theme-accent="1"]{--accent: var(--theme-1)}:root[data-theme-accent-enabled=true][data-theme-accent="2"]{--accent: var(--theme-2)}:root[data-theme-accent-enabled=true][data-theme-accent="3"]{--accent: var(--theme-3)}:root[data-theme-accent-enabled=true][data-theme-accent="4"]{--accent: var(--theme-4)}:root[data-theme-accent-enabled=true][data-theme-accent="5"]{--accent: var(--theme-5)}