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input{border-color:var(--line);background:var(--surface-muted);color:var(--ink)}:root[data-theme=dark] .auth-card h2,:root[data-theme=dark] .builder-page-intro h1,:root[data-theme=dark] .builder-section-heading b,:root[data-theme=dark] .slide-image-card>b{color:var(--ink)}:root[data-theme=dark] .auth-sub,:root[data-theme=dark] .auth-step,:root[data-theme=dark] .builder-page-intro p,:root[data-theme=dark] .draft-status,:root[data-theme=dark] .prompt-head small,:root[data-theme=dark] .prompt-foot,:root[data-theme=dark] .story-copy p,:root[data-theme=dark] .story-note small,:root[data-theme=dark] .story-foot,:root[data-theme=dark] .auth-toggle{color:var(--muted)}:root[data-theme=dark] .auth-form label,:root[data-theme=dark] .builder-fields label{color:#c6d0df}:root[data-theme=dark] .builder-fields,:root[data-theme=dark] .prompt-preview,:root[data-theme=dark] .profile-card,:root[data-theme=dark] .lesson-card{border-color:var(--line);background:var(--paper);color:var(--ink)}:root[data-theme=dark] .timeout-setting,:root[data-theme=dark] .slide-image-fields,:root[data-theme=dark] .image-dropzone,:root[data-theme=dark] .profile-card input[readonly]{border-color:var(--line);background:var(--surface-muted);color:var(--ink)}:root[data-theme=dark] .library-dock{background:var(--dock-bg);box-shadow:none;border:0}:root[data-theme=dark] .library-dock:before{background:linear-gradient(145deg, color-mix(in srgb, var(--dock-gradient-start) 24%, transparent), color-mix(in srgb, var(--dock-gradient-end) 16%, transparent) 45%, #a7b5ff20)}:root[data-theme=dark] .library-dock button:hover{box-shadow:none;background:#a7c9ff24}:root[data-theme=dark] .library-dock button span{color:var(--dock-label-color)}:root[data-theme=dark] .account-menu{border-color:var(--line);background:#202938e8}:root[data-theme=dark] .account-menu button,:root[data-theme=dark] .profile-identity div:last-child{color:var(--ink)}:root[data-theme=dark] .account-menu button:hover,:root[data-theme=dark] .theme-options button[aria-pressed=true]{background:var(--aqua)}:root[data-theme=dark] .empty-state,:root[data-theme=dark] .result-count,:root[data-theme=dark] .lesson-objective,:root[data-theme=dark] .lesson-footer{color:var(--muted)}:root[data-theme=dark] .empty-state h3{color:var(--ink)}:root[data-theme=dark] .lesson-footer{border-color:var(--line)}:root[data-theme=dark] .button-soft{background:var(--aqua);color:var(--ink)}:root[data-theme=dark] .button-primary,:root[data-theme=dark] .brand-mark{color:#121827}:root[data-theme=dark] .google-button:hover,:root[data-theme=dark] .image-dropzone:hover{background:var(--aqua)}:root[data-theme=dark] .notice{color:#a8e4c1;background:#233c35}:root[data-theme=dark] .form-error,:root[data-theme=dark] .auth-message{color:#ffb5a5;background:#3c2929}:root[data-theme=dark] .skeleton-card,:root[data-theme=dark] .skeleton-folder,:root[data-theme=dark] .art-paper{border-color:var(--line);background:var(--paper)}:root[data-theme=dark] .shimmer{background:linear-gradient(100deg,#202b3a 20%,#2b394b 42%,#202b3a 64%) 0 0/220% 100%}*{box-sizing:border-box}body{min-width:320px;min-height:100vh;margin:0}button,input,textarea,select{font:inherit}button{cursor:pointer}button:disabled{cursor:not-allowed;opacity:.55}button:focus-visible,input:focus-visible,textarea:focus-visible,select:focus-visible{outline:3px solid var(--aqua-deep);outline-offset:2px}a{color:inherit;text-decoration:none}.brand{color:var(--ink);text-align:left;align-items:center;gap:9px;display:inline-flex}.brand-button{background:0 0;border:0;padding:0}.brand-mark{object-fit:contain;flex:none;width:38px;height:38px}.brand-copy{gap:1px;line-height:.95;display:grid}.brand-copy b{font:700 16px/1 var(--heading);letter-spacing:-.35px}.brand-copy>span{text-transform:lowercase;align-items:baseline;gap:4px;font:500 12px/1.2 Google Sans,sans-serif;display:flex}.brand-copy em{color:var(--coral);font:600 20px/.8 Caveat,cursive}.button{border:0;border-radius:10px;justify-content:center;align-items:center;gap:9px;font-weight:600;transition:transform .15s,background .15s;display:inline-flex}.button:hover{transform:translateY(-1px)}.button-primary{color:#fff;background:var(--primary);box-shadow:0 5px 12px #3036c622}.button-primary:hover{background:var(--primary-dark)}.button-dark{color:#fff;background:#23284f}.button-soft{color:#3036c6;background:#d2fdff}.icon-button{color:#76847b;background:0 0;border:0;border-radius:9px;place-items:center;width:34px;height:34px;font-size:16px;display:inline-grid}.icon-button:hover{color:var(--primary);background:#d2fdff}.text-link{color:var(--primary);background:0 0;border:0;padding:0;font-weight:700}.text-link:hover{text-decoration:underline}.eyebrow{color:#68718a;letter-spacing:1.25px;font-size:13px;font-weight:700}.eyebrow-dot{background:var(--coral);vertical-align:1px;border-radius:50%;width:7px;height:7px;margin-right:6px;display:inline-block}.spinner{border:2px solid #d8e1d5;border-top-color:var(--primary);border-radius:50%;width:20px;height:20px;animation:.7s linear infinite spin}@keyframes spin{to{transform:rotate(360deg)}}.auth-layout{background:var(--paper);grid-template-columns:minmax(420px,.95fr) 1.05fr;min-height:100vh;display:grid}.auth-story{background:var(--aqua);flex-direction:column;min-height:720px;padding:38px 6vw 30px;display:flex;position:relative;overflow:hidden}.story-copy{z-index:2;max-width:470px;margin:auto 0;padding-bottom:50px;position:relative}.story-copy .eyebrow{color:#3036c6}.story-copy h1{font:52px/1.08 var(--heading);color:var(--ink);letter-spacing:-1.2px;margin:22px 0 16px}.story-copy h1 em{color:var(--primary);font-weight:500}.story-copy p{color:#4f5b76;max-width:345px;font-size:16px;line-height:1.7}.story-note{align-items:center;gap:13px;margin-top:42px;display:flex}.story-note>span{background:var(--aqua-deep);color:var(--primary);border-radius:12px;place-items:center;width:42px;height:42px;display:grid}.story-note b,.story-note small{display:block}.story-note b{color:var(--ink);font-size:14px}.story-note small{color:#586580;margin-top:4px;font-size:13px}.story-foot{color:#596589;letter-spacing:1.1px;z-index:2;font-size:11px;font-weight:700;position:relative}.story-art{width:340px;height:260px;position:absolute;bottom:-52px;right:-18px;transform:rotate(-10deg)}.art-paper{border:1px solid var(--aqua-deep);width:230px;height:290px;color:var(--primary);font:italic 28px/1.1 var(--heading);background:#fff;border-radius:7px;padding:26px;position:absolute;top:20px;left:50px;box-shadow:0 12px 26px #3036c61a}.art-paper i{color:var(--coral);font-size:30px;position:absolute;top:40px;right:28px}.art-paper b{color:var(--primary);font:700 13px Google Sans;position:absolute;bottom:32px;left:27px}.art-sun{border:1px solid var(--coral);border-radius:50%;width:65px;height:65px;position:absolute;top:38px;right:9px}.auth-panel{place-items:center;padding:40px 28px;display:grid}.auth-card{width:min(100%,390px)}.auth-step{letter-spacing:1.4px;color:#8fa07e;font-size:13px;font-weight:700}.auth-card h2{font:34px/1.18 var(--heading);letter-spacing:-.6px;color:var(--ink);margin:12px 0 6px}.auth-sub{color:#89928c;margin:0 0 25px;font-size:15px}.google-button{color:#36473e;background:#fff;border:1px solid #e1e5df;border-radius:9px;width:100%;height:46px;font-size:15px;font-weight:600}.google-button:hover{background:#f9faf6}.google-button i{margin-right:8px}.separator{color:#a1aaa3;align-items:center;gap:12px;margin:21px 0;font-size:13px;display:flex}.separator span{background:#eaede7;flex:1;height:1px}.auth-form{gap:14px;display:grid}.auth-form label,.builder-fields label{color:#516259;gap:7px;font-size:14px;font-weight:700;display:grid}.auth-form input,.builder-fields input,.builder-fields select,.builder-fields textarea{color:#293d33;background:#fff;border:1px solid #e3e7df;border-radius:8px;min-height:43px;padding:0 12px;font-size:14px}.auth-form input::placeholder,.builder-fields input::placeholder{color:#b2bbb3}.forgot{justify-self:end;margin-top:-6px;font-size:14px}.auth-submit{height:46px;margin-top:3px;font-size:14px}.auth-submit i{margin-left:auto}.auth-toggle{text-align:center;color:#8a948d;margin:20px 0 0;font-size:14px}.auth-toggle .text-link{margin-left:3px}.auth-legal{text-align:center;color:#a5ada6;margin-top:34px;font-size:13px}.auth-message{color:#a54f3f;background:#fff0ec;border-radius:8px;padding:10px;font-size:14px;line-height:1.5}.app-shell{background-color:var(--dashboard-default);background-image:linear-gradient(var(--dashboard-overlay,transparent), var(--dashboard-overlay,transparent)), var(--dashboard-wallpaper,none), radial-gradient(ellipse at 48% 3%, var(--dashboard-glow) 0, var(--dashboard-default) 48%, color-mix(in srgb, var(--dashboard-default) 90%, #c9bfa9) 100%);background-position:50%;background-size:cover;background-attachment:fixed;min-height:100vh}.workspace{width:100%;min-width:0;max-width:1480px;margin:auto;padding:0 4.2vw 60px}.topbar{border-bottom:1px solid #e9ece5;flex-wrap:wrap;justify-content:space-between;align-items:center;gap:8px;height:auto;min-height:68px;padding:8px 0;display:flex}.crumb{color:#607168;font-size:14px}.crumb span{color:#9aa69c;letter-spacing:.8px;font-size:12px;font-weight:700}.crumb b{color:#c5ccc5;padding:0 9px}.topbar-actions{align-items:center;gap:15px;display:flex}.avatar-button{color:#526d49;background:#d8e4c4;border:0;border-radius:50%;place-items:center;width:34px;height:34px;padding:0;font-size:14px;font-weight:700;display:grid;overflow:hidden}.avatar-button img{object-fit:cover;width:100%;height:100%;display:block}.welcome-row{justify-content:space-between;align-items:end;min-width:0;margin:32px 0 28px;display:flex}.welcome-row h1{font:clamp(1.8rem, 4vw, 2.25rem)/1.2 var(--heading);color:#283c31;letter-spacing:-.7px;overflow-wrap:anywhere;margin:12px 0 8px}.greeting-emoji{vertical-align:2px;margin-left:3px;font:23px/1 system-ui,sans-serif;display:inline-block}.welcome-row p{color:#8c968f;margin:0;font-size:14px}.hero-create{height:40px;padding:0 15px;font-size:14px}.idea-strip{background:var(--aqua);border:1px solid var(--aqua-deep);border-radius:13px;align-items:center;min-height:104px;margin-bottom:39px;padding:18px 23px;display:flex;position:relative;overflow:hidden}.idea-spark{background:var(--aqua-deep);width:40px;height:40px;color:var(--primary);border-radius:11px;flex-shrink:0;place-items:center;margin-right:15px;font-size:18px;display:grid}.idea-strip b{color:var(--ink);font:18px var(--heading)}.idea-strip p{color:#505a79;max-width:485px;margin:4px 0 0;font-size:13px;line-height:1.5}.idea-link{z-index:2;color:var(--primary);white-space:nowrap;background:0 0;border:0;margin-left:auto;font-size:13px;font-weight:700;position:relative}.idea-link i{padding-left:7px}.idea-art{color:#ffffff85;font-size:125px;line-height:1;position:absolute;top:-37px;right:23%;transform:rotate(13deg)}.library-heading{justify-content:space-between;align-items:end;min-width:0;margin-bottom:19px;display:flex}.library-heading>div{min-width:0}.folder-view .library-heading{margin-top:32px}.library-heading h2{color:#35453c;max-width:100%;font:23px var(--heading);text-transform:capitalize;overflow-wrap:anywhere;margin:7px 0 0}.desktop-workspace:not(.folder-view) .library-heading h2{margin-top:0}.result-count{color:#a1aaa2;vertical-align:4px;padding-left:5px;font:13px DM Sans}.notice{overflow-wrap:anywhere;color:#536b4e;background:#f2f5eb;border-radius:7px;flex-wrap:wrap;align-items:center;gap:9px;min-width:0;margin-bottom:15px;padding:9px 12px;font-size:14px;display:flex}.notice button{color:inherit;background:0 0;border:0;margin-left:auto}.empty-state{text-align:center;color:#8b978d;flex-direction:column;justify-content:center;align-items:center;min-height:310px;display:flex}.empty-state h3{color:#405247;font:22px var(--heading);margin:14px 0 6px}.empty-state p{max-width:335px;margin:0 0 17px;font-size:14px;line-height:1.7}.empty-icon{color:#6e8958;background:#eaf0e2;border-radius:15px;place-items:center;width:48px;height:48px;font-size:20px;display:grid}.empty-state .button{height:38px;padding:0 15px;font-size:14px}.loading-state{flex-direction:row;gap:12px;font-size:14px}.desktop-workspace{max-width:1360px}.desktop-crumb{color:#607168;cursor:pointer;background:0 0;border:0;padding:0}.desktop-crumb span{color:#9aa69c;letter-spacing:.8px;font-size:12px;font-weight:700}.desktop-crumb b{color:#c5ccc5;padding:0 9px}.top-create{min-height:38px;padding:0 13px;font-size:13px}.desktop-back{color:var(--primary);background:0 0;border:0;align-items:center;gap:6px;margin:0 0 9px;padding:0;font-size:13px;font-weight:700;display:flex}.desktop-back i{font-size:14px}.desktop-workspace{padding-bottom:125px}.folder-groups{gap:24px;min-width:0;padding-bottom:38px;display:grid}.folder-group{min-width:0}.folder-group+.folder-group{border-top:1px solid var(--line);padding-top:21px}.folder-group>header{margin-bottom:8px}.folder-group h3{color:var(--ink);font:18px/1.2 var(--heading);overflow-wrap:anywhere;margin:4px 0 0}.folder-canvas{grid-template-columns:repeat(auto-fill,112px);grid-auto-rows:minmax(126px,auto);justify-content:start;gap:12px 22px;min-width:0;padding:8px 4px 0;display:grid}.mac-folder{border-radius:12px;place-items:start center;min-width:0;max-width:100%;display:grid;position:relative}.mac-folder[draggable=true]{cursor:grab}.mac-folder:active{cursor:grabbing}.mac-folder-open{width:100%;min-width:0;color:var(--ink);background:0 0;border:0;flex-direction:column;align-items:center;gap:4px;padding:5px;display:flex}.mac-folder-open>i{color:var(--folder-color);filter:drop-shadow(0 5px 3px #25334b20);font-size:57px;line-height:1.05;transition:transform .16s,filter .16s}.mac-folder:hover .mac-folder-open>i{filter:drop-shadow(0 8px 5px #25334b2b);transform:translateY(-3px)}.mac-folder-open b{overflow-wrap:anywhere;color:#223042;text-align:center;border-radius:5px;width:100%;max-width:100%;padding:3px 6px;font-size:13px;font-weight:600;line-height:1.2}.mac-folder-open small{color:#657387;font-size:11px}.folder-color-trigger{z-index:2;opacity:0;cursor:pointer;background:#ffffff9c;border:1px solid #ffffffb8;border-radius:50%;place-items:center;width:23px;height:23px;padding:0;display:grid;position:absolute;top:5px;right:5px}.mac-folder:hover .folder-color-trigger,.folder-color-trigger:focus-visible{opacity:1}.folder-color-trigger i{border-radius:50%;width:10px;height:10px}.folder-palette{z-index:4;-webkit-backdrop-filter:blur(18px);backdrop-filter:blur(18px);background:#ffffffd9;border:1px solid #fffb;border-radius:11px;grid-template-columns:repeat(4,18px);gap:5px;padding:8px;display:grid;position:absolute;top:27px;right:-32px;box-shadow:0 8px 24px #20304724}.mac-folder.folder-menu-open{z-index:6}.folder-palette button{border:1px solid #fff;border-radius:50%;width:17px;height:17px}.folder-palette button:disabled{cursor:not-allowed;opacity:.38;filter:grayscale(.7)}.folder-color-disabled-note{color:#526174;text-align:center;grid-column:1/-1;max-width:156px;font-size:10px;line-height:1.25}.folder-custom-color.is-disabled{cursor:not-allowed;filter:grayscale(.8);opacity:.4}.folder-custom-color{color:#fff;cursor:pointer;background:conic-gradient(#e76f51,#e9c46a,#58a77b,#55a9e6,#8e79d6,#e76f51);border:1px solid #8b98a8;border-radius:50%;place-items:center;width:17px;height:17px;display:grid;position:relative;overflow:hidden}.folder-custom-color>i{z-index:1;pointer-events:none;text-shadow:0 1px 2px #26344a;font-size:10px}.folder-custom-color input[type=color]{opacity:0;cursor:pointer;border:0;width:100%;height:100%;min-height:0;padding:0;position:absolute;inset:0}.search-scope{color:var(--muted);text-align:center;margin:16px auto 0;font-size:13px}.load-more{justify-content:center;padding:24px 0 18px;display:flex}.load-more .button{min-height:42px}.recent-lessons{grid-template-columns:repeat(4,minmax(0,1fr));gap:12px;margin:-3px 0 29px;display:grid}.recent-lesson{border:1px solid var(--line);background:var(--paper);min-width:0;min-height:126px;color:var(--ink);text-align:left;border-radius:12px;flex-direction:column;align-items:flex-start;gap:8px;padding:16px;transition:transform .16s,border-color .16s,box-shadow .16s;display:flex;box-shadow:0 5px 18px #23284f08}.recent-lesson:hover{border-color:var(--aqua-deep);transform:translateY(-2px);box-shadow:0 9px 22px #23284f12}.recent-lesson-top,.recent-lesson-date{min-width:0;color:var(--muted);text-transform:capitalize;flex-wrap:wrap;align-items:center;gap:6px;font-size:11px;display:flex}.recent-lesson-top>i{color:var(--coral);font-size:14px}.recent-type-badge,.recent-style-badge{border:1px solid var(--line);background:var(--surface-muted);color:var(--muted);overflow-wrap:anywhere;border-radius:999px;padding:3px 8px;font-size:10px;line-height:1.2}.recent-style-badge{background:var(--primary);color:#fff;border-color:#0000;border-radius:7px;font-weight:700}:root[data-theme=dark] .recent-style-badge{color:#121827}.recent-lesson>b{width:100%;color:var(--ink);font:16px/1.2 var(--heading);text-overflow:ellipsis;white-space:nowrap;overflow:hidden}.recent-lesson>small{color:var(--muted);-webkit-line-clamp:2;-webkit-box-orient:vertical;font-size:12px;line-height:1.4;display:-webkit-box;overflow:hidden}.recent-lesson-date{justify-content:space-between;width:100%;margin-top:auto}.account-menu-wrap{position:relative}.account-menu{z-index:8;-webkit-backdrop-filter:blur(18px);backdrop-filter:blur(18px);background:#ffffffdf;border:1px solid #ffffffd4;border-radius:12px;width:170px;padding:6px;position:absolute;top:43px;right:0;box-shadow:0 10px 30px #26344a24}.account-menu button{width:100%;color:var(--ink);text-align:left;background:0 0;border:0;border-radius:8px;align-items:center;gap:9px;padding:10px;font-size:13px;display:flex}.account-menu button:hover{background:var(--aqua)}body:has(.profile-page){background:var(--profile-canvas)}.profile-page{background:var(--profile-canvas);max-width:820px;min-height:100vh;margin:auto;padding:0 24px 60px}.profile-top{border-bottom:1px solid var(--line);justify-content:space-between;align-items:center;height:68px;display:flex}.profile-top .button{min-height:36px;padding:0 12px;font-size:13px}.profile-card{border:1px solid var(--line);background:var(--profile-surface);border-radius:18px;max-width:600px;margin:58px auto;padding:32px;box-shadow:0 12px 36px #28364b0c}.profile-card h1{color:var(--ink);font:32px/1.15 var(--heading);margin:8px 0 26px}.profile-tabs{border:1px solid var(--line);background:var(--surface-muted);border-radius:11px;gap:6px;margin:-8px 0 20px;padding:4px;display:flex}.profile-tabs button{color:var(--muted);background:0 0;border:0;border-radius:8px;flex:1;padding:9px 12px;font-size:13px;font-weight:600}.profile-tabs button[aria-selected=true]{background:var(--paper);color:var(--primary);box-shadow:0 1px 5px #26354a18}.preference-sync-status,.preference-sync-error{margin:10px 0 0;font-size:12px}.preference-sync-status{color:var(--muted)}.preference-sync-error{color:#b34238}.profile-card [hidden]{display:none}.profile-identity{border-bottom:1px solid var(--line);align-items:center;gap:13px;margin-bottom:19px;padding:17px 0 22px;display:flex}.profile-avatar{background:var(--aqua);width:52px;height:52px;color:var(--primary);border-radius:50%;place-items:center;font-size:22px;font-weight:700;display:grid;overflow:hidden}.profile-avatar img{object-fit:cover;width:100%;height:100%}.profile-identity div:last-child{color:var(--ink);gap:4px;font-size:14px;display:grid}.profile-identity small,.profile-card label small{color:var(--muted);font-size:12px}.profile-photo-settings{border-bottom:1px solid var(--line);gap:9px;margin-bottom:18px;padding:0 0 20px;display:grid}.profile-photo-settings>div:first-child{color:var(--ink);gap:3px;font-size:13px;display:grid}.profile-photo-settings small{color:var(--muted);font-size:12px}.profile-photo-actions{flex-wrap:wrap;gap:8px;display:flex}.profile-photo-actions .button{min-height:36px;padding:0 11px;font-size:12px}.profile-photo-remove{color:#a44335;background:#fff5f2;border:1px solid #edc9c1}:root[data-theme=dark] .profile-photo-remove{color:#ffc3b6;background:#392724;border-color:#75433b}.profile-photo-settings progress{width:100%;height:7px;accent-color:var(--primary)}.profile-photo-error{color:#b34238!important}.profile-photo-message{color:var(--success)!important}.profile-card form{gap:18px;display:grid}.profile-card label{color:var(--ink);gap:7px;font-size:13px;font-weight:600;display:grid}.profile-card input{border:1px solid 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button[aria-pressed=true]{color:var(--primary);background:#fff;box-shadow:0 1px 4px #26354a20}.dock-live-preview{background-color:color-mix(in srgb, var(--surface) 70%, transparent);background-position:50%;background-size:cover;border:1px solid #ffffffa8;border-radius:16px;align-content:center;gap:7px;min-height:142px;padding:13px 8px 8px;display:grid;box-shadow:inset 0 1px 4px #ffffff65}.dock-live-preview>.dock-preview-badge{color:#23284f;-webkit-backdrop-filter:blur(12px);backdrop-filter:blur(12px);background:#ffffffdf;border:1px solid #ffffffd6;border-radius:999px;justify-self:center;padding:4px 9px;font-size:11px;box-shadow:0 2px 8px #07182d24}@media (width<=600px){.profile-page{padding:0 15px 40px}.profile-card{margin:30px auto;padding:22px}.profile-card h1{font-size:28px}.profile-top{height:58px}}@media (width<=780px){.folder-canvas{grid-template-columns:repeat(auto-fill,92px);grid-auto-rows:112px;justify-content:space-around;gap:8px 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#26344a40}.dock-hover-toggle{color:var(--ink);cursor:pointer;align-items:center;gap:9px;display:flex}.dock-hover-toggle input{width:17px;height:17px;accent-color:var(--primary)}.dock-hover-toggle span{gap:3px;font-size:13px;display:grid}.dock-hover-toggle small{color:var(--muted);font-size:11px}.dock-hover-color{color:var(--muted);align-items:center;gap:7px;font-size:12px;display:flex}.dock-hover-color input[type=color]{width:36px;height:32px;padding:2px}.dock-hover-color input:disabled{opacity:.45}:root[data-dock-hover=off] .library-dock button:hover{box-shadow:none;-webkit-backdrop-filter:none;backdrop-filter:none;background:0 0;transform:none}:root[data-dock-hover=off] .library-dock button:hover>svg{transform:none}.dock-live-preview{background:color-mix(in srgb, var(--surface) 70%, transparent);border-radius:16px;gap:4px;padding:13px 8px 4px;display:grid}.dock-live-preview>b{color:var(--muted);font-size:12px}.dock-transparency{color:var(--ink);grid-template-columns:1fr 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20px)}.dock-size-controls{grid-template-columns:1fr}.library-dock-preview{max-width:100%}.dock-preference-row{flex-direction:column;align-items:flex-start;gap:9px}.dock-hover-color{align-self:flex-end}}.dashboard-appearance-panel{padding-top:2px}.dashboard-appearance-settings{gap:15px;display:grid}.dashboard-appearance-heading{color:var(--ink);gap:4px;font-size:14px;display:grid}.dashboard-appearance-heading small,.wallpaper-dropzone small,.wallpaper-overlay-controls small{color:var(--muted);font-size:12px;font-weight:400}.wallpaper-dropzone{border:1px dashed var(--aqua-deep);background:color-mix(in srgb, var(--surface) 78%, transparent);color:var(--ink);text-align:center;border-radius:12px;justify-items:center;gap:8px;padding:18px 14px;font-size:13px;display:grid}.wallpaper-dropzone>i{color:var(--primary);font-size:22px}.wallpaper-dropzone progress{width:min(300px,100%);accent-color:var(--primary)}.wallpaper-dropzone p{color:#b34238;margin:0;font-size:12px}.wallpaper-lock-note{border:1px solid var(--line);color:var(--ink);background:var(--surface-muted);border-radius:10px;align-items:center;gap:10px;padding:11px 12px;display:flex}.wallpaper-lock-note>i{color:var(--primary);flex:none;font-size:17px}.wallpaper-lock-note>span{flex:1;gap:3px;font-size:12px;display:grid}.wallpaper-lock-note small{color:var(--muted);font-size:11px;line-height:1.4}.wallpaper-lock-note button{flex:none;font-size:12px}.wallpaper-remove{color:#a44335;background:#fff5f2;border:1px solid #edc9c1;border-radius:10px;justify-self:start;align-items:center;gap:8px;min-height:38px;padding:0 13px;font-size:13px;display:inline-flex}.wallpaper-remove:hover:not(:disabled){background:#ffe9e3}.wallpaper-remove:disabled{opacity:.55;cursor:not-allowed}:root[data-theme=dark] .wallpaper-remove{color:#ffc3b6;background:#392724;border-color:#75433b}.wallpaper-overlay-controls{grid-template-columns:minmax(90px,auto) 1fr;align-items:end;gap:18px;display:grid}.wallpaper-overlay-controls label{color:var(--ink);gap:7px;font-size:12px;display:grid}.wallpaper-overlay-controls label>span{color:var(--muted);justify-self:end}.wallpaper-overlay-controls input[type=color]{width:48px;height:38px;min-height:38px;padding:3px}.wallpaper-overlay-controls input[type=range].gradient-range{grid-column:1/-1;width:100%}.gradient-range{appearance:none;cursor:pointer;touch-action:pan-y;background:0 0;height:30px;margin:0}.gradient-range::-webkit-slider-runnable-track{background:linear-gradient(90deg,#b4dfe5 0%,#d2fdff 54%,#fbe8a6 100%) 0/var(--range-progress) 100% no-repeat,linear-gradient(90deg,#e7f0f1,#f4f6f5);border:1px solid #ffffffc9;border-radius:99px;height:9px;box-shadow:inset 0 1px 2px #27354a16,0 1px 2px #27354a0b}.gradient-range::-webkit-slider-thumb{appearance:none;background:linear-gradient(145deg,#fff,#d2fdff);border:3px solid #fff;border-radius:50%;width:21px;height:21px;margin-top:-7px;transition:transform .15s,box-shadow .15s;box-shadow:0 2px 8px #536b7b40,0 0 0 1px #b4dfe5}.gradient-range::-moz-range-track{background:#edf3f3;border:1px solid #ffffffc9;border-radius:99px;height:9px;box-shadow:inset 0 1px 2px #27354a16}.gradient-range::-moz-range-progress{background:linear-gradient(90deg,#b4dfe5,#d2fdff 54%,#fbe8a6);border-radius:99px;height:9px}.gradient-range::-moz-range-thumb{background:linear-gradient(145deg,#fff,#d2fdff);border:3px solid #fff;border-radius:50%;width:15px;height:15px;box-shadow:0 2px 8px #536b7b40,0 0 0 1px #b4dfe5}.gradient-range:hover::-webkit-slider-thumb{transform:scale(1.12);box-shadow:0 3px 11px #536b7b50,0 0 0 4px #b4dfe550}.gradient-range:focus-visible{outline:0}.gradient-range:focus-visible::-webkit-slider-thumb{box-shadow:0 0 0 4px #3036c633,0 2px 8px #3036c64d}.gradient-range:focus-visible::-moz-range-thumb{box-shadow:0 0 0 4px #3036c633,0 2px 8px #3036c64d}.dock-size-controls input[type=range].gradient-range,.dock-transparency input[type=range].gradient-range{width:100%;height:30px;min-height:30px;accent-color:var(--primary);padding:0}.wallpaper-overlay-controls small{grid-column:1/-1;margin-top:-5px}.wallpaper-preview{background-position:50%;background-size:cover;border:1px solid #ffffffa8;border-radius:14px;align-content:space-between;gap:18px;min-height:150px;padding:16px;display:grid;box-shadow:inset 0 1px 3px #ffffff75}.wallpaper-preview>b{color:var(--ink);text-shadow:0 1px 5px #ffffffb8;font-size:12px}.wallpaper-preview>div{flex-wrap:wrap;gap:9px;display:flex}.folder-style-controls{gap:11px;display:grid}.wallpaper-overlay-controls[data-disabled=true],.folder-style-controls[data-disabled=true]{opacity:.58}.folder-style-controls[data-disabled=true] button,.folder-style-controls[data-disabled=true] input{cursor:not-allowed}.folder-style-controls>div:first-child,.folder-shadow-toggle span{color:var(--ink);gap:3px;font-size:13px;display:grid}.folder-style-controls small{color:var(--muted);font-size:12px;font-weight:400}.folder-card-options{flex-wrap:wrap;gap:9px;display:flex}.folder-card-options button{border:1px solid var(--line);background:var(--surface);min-width:145px;color:var(--ink);text-align:left;border-radius:10px;flex:1;align-items:center;gap:9px;padding:9px;display:flex}.folder-card-options button[aria-pressed=true]{border-color:var(--primary);box-shadow:0 0 0 2px #3036c620}.folder-card-swatch{-webkit-backdrop-filter:blur(8px);backdrop-filter:blur(8px);background:linear-gradient(145deg,#ffffff8a,#d2fdff58);border:1px solid #ffffffb8;border-radius:9px;width:38px;height:30px;box-shadow:0 3px 9px #07182d25}.folder-card-swatch.solid{background:linear-gradient(90deg,var(--folder-blue) 0 33%,var(--folder-violet) 33% 66%,var(--folder-coral) 66%)}.folder-shadow-toggle{color:var(--ink);cursor:pointer;align-items:center;gap:9px;display:flex}.folder-shadow-toggle input{width:17px;height:17px;accent-color:var(--primary)}.folder-style-preview .preview-folder{background:linear-gradient(145deg,#ffffff48,#ffffff30 48%,#d2fdff38);box-shadow:0 4px 12px #07182d28}.folder-style-preview .preview-folder i{color:var(--folder-color);font-size:15px}.folder-style-preview[data-folder-cards=solid] .preview-folder{background:var(--folder-color);color:#fff;-webkit-backdrop-filter:none;backdrop-filter:none;border-color:#ffffff80}.folder-style-preview[data-folder-cards=solid] .preview-folder i{color:#fff}.folder-style-preview[data-folder-text-shadow=off] .preview-folder{text-shadow:none}.folder-style-preview{flex-direction:column;align-items:flex-start;gap:12px;min-height:198px;display:flex}.folder-style-preview>.preview-badge{color:#23284f;text-shadow:none;-webkit-backdrop-filter:blur(12px);backdrop-filter:blur(12px);background:#ffffffdf;border:1px solid #ffffffd6;border-radius:999px;padding:5px 9px;font-size:11px;box-shadow:0 2px 8px 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var(--line);background:#effbfc;border-radius:14px;flex-direction:column;min-width:0;height:min(700px,100vh - 190px);min-height:480px;padding:20px;display:flex;position:sticky;top:18px;overflow:hidden}.prompt-head{align-items:center;gap:10px;display:flex}.prompt-icon{width:36px;height:36px;color:var(--primary);background:var(--aqua-deep);border-radius:10px;place-items:center;display:grid}.prompt-head b,.prompt-head small{display:block}.prompt-head b{color:var(--ink);font-size:15px}.prompt-head small{color:#66758b;margin-top:3px;font-size:13px}.prompt-preview pre{white-space:pre-wrap;overflow-wrap:anywhere;word-break:normal;tab-size:2;border:1px solid var(--line);color:#495572;background:#fff;border-radius:9px;flex:1;min-width:0;min-height:0;margin:15px 0;padding:14px;font:13px/1.6 ui-monospace,Consolas,monospace;overflow:auto}.copy-prompt{flex:0 0 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button{background:var(--primary);color:#fff;cursor:pointer;border:0;border-radius:50%;width:42px;height:42px}.setup-chat-composer small{color:#a04d3b;flex-basis:100%;font-size:12px}.setup-chat-typing{background:var(--surface-muted);border-radius:16px 16px 16px 4px;gap:4px;width:max-content;padding:13px 15px;display:flex}.setup-chat-typing span{background:var(--muted);border-radius:50%;width:7px;height:7px;animation:1s ease-in-out infinite chat-typing}.setup-chat-typing span:nth-child(2){animation-delay:.15s}.setup-chat-typing span:nth-child(3){animation-delay:.3s}.setup-chat-typing small{color:var(--muted);align-self:center;margin-left:4px;font-size:11px}.setup-sample-link{color:var(--muted);font:inherit;text-underline-offset:3px;cursor:pointer;background:0 0;border:0;justify-self:start;margin-left:34px;padding:2px 0;font-size:12px;text-decoration:underline}.setup-sample-choices{padding-top:2px}@keyframes 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small{color:var(--muted);font-size:11px;line-height:1.4}.question-image-results{overscroll-behavior:contain;grid-template-columns:repeat(3,minmax(0,1fr));gap:9px;max-height:360px;padding:2px 4px 2px 0;display:grid;overflow:auto}.question-image-result{align-content:start;gap:4px;min-width:0;display:grid}.question-image-pick{border:1px solid var(--line);background:var(--paper);width:100%;min-width:0;color:var(--ink);text-align:left;cursor:pointer;border-radius:8px;padding:0;display:block;position:relative;overflow:hidden}.question-image-pick img{aspect-ratio:4/3;object-fit:cover;background:var(--surface-muted);width:100%;display:block}.question-image-pick>span{color:var(--primary);text-overflow:ellipsis;white-space:nowrap;padding:6px 7px;font-size:11px;font-weight:700;display:block;overflow:hidden}.question-image-pick:hover:not(:disabled),.question-image-pick:focus-visible{outline:2px solid var(--primary);outline-offset:2px}.question-image-pick:disabled{cursor:wait;opacity:.65}.question-image-result-skeleton{pointer-events:none}.image-result-skeleton-thumb,.image-result-skeleton-action,.image-result-skeleton-credit{background:color-mix(in srgb, var(--line) 62%, var(--paper));border-radius:7px;position:relative;overflow:hidden}.image-result-skeleton-thumb{aspect-ratio:4/3}.image-result-skeleton-action{height:25px}.image-result-skeleton-credit{width:82%;height:11px}.image-result-skeleton-thumb:after,.image-result-skeleton-action:after,.image-result-skeleton-credit:after{background:linear-gradient(100deg, transparent 15%, color-mix(in srgb, var(--paper) 72%, transparent) 48%, transparent 80%);content:"";animation:1.35s ease-in-out infinite image-search-shimmer;position:absolute;inset:0;transform:translate(-100%)}@keyframes image-search-shimmer{to{transform:translate(100%)}}@media 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(width<=560px){.question-image-results{grid-template-columns:repeat(2,minmax(0,1fr));max-height:300px}.question-image-search-form>div{flex-direction:column;align-items:stretch}.question-image-search-form .button{justify-content:center}}.lesson-editor-card{border:1px solid var(--line);background:var(--paper);border-radius:16px;gap:18px;max-width:1180px;margin:0 auto;padding:24px;display:grid;box-shadow:0 10px 32px #3036c60b}.editor-toolbar{border-bottom:1px solid var(--line);justify-content:space-between;align-items:center;gap:16px;padding-bottom:16px;display:flex}.editor-toolbar b,.editor-toolbar small{display:block}.editor-toolbar b{color:var(--ink);font:20px var(--heading)}.editor-toolbar small{color:var(--muted);text-transform:capitalize;margin-top:4px;font-size:13px}.editor-views{border:1px solid var(--line);background:var(--surface-muted);border-radius:10px;padding:4px;display:flex}.editor-views button{color:var(--muted);cursor:pointer;background:0 0;border:0;border-radius:7px;padding:9px 12px;font:600 13px Google Sans,sans-serif}.editor-views button[aria-pressed=true]{color:var(--primary);background:var(--paper);box-shadow:0 2px 6px #20284d12}.edit-fields{gap:15px;display:grid}.edit-fields label,.advanced-json{color:var(--ink);gap:7px;font-size:14px;font-weight:700;display:grid}.edit-fields input,.edit-fields select,.edit-fields textarea,.advanced-json textarea{border:1px solid var(--line);width:100%;min-height:42px;color:var(--ink);background:var(--surface-muted);border-radius:8px;padding:10px 12px;font:14px Google Sans,sans-serif}.edit-fields textarea{resize:vertical;min-height:72px}.edit-metadata,.edit-activity{border:1px solid var(--line);background:var(--surface-muted);border-radius:12px;min-width:0}.edit-activity.is-open{background:var(--paper);box-shadow:0 5px 16px #3036c60a}.activity-toggle{border-radius:inherit;width:100%;min-width:0;color:var(--ink);text-align:left;background:0 0;border:0;justify-content:space-between;align-items:center;gap:14px;padding:14px 16px;display:flex}.activity-toggle>span{gap:4px;min-width:0;display:grid}.activity-toggle b{font:700 16px var(--heading)}.activity-toggle small{color:var(--muted);text-overflow:ellipsis;white-space:nowrap;font-size:13px;overflow:hidden}.activity-toggle>i{color:var(--primary);flex:none}.activity-fields{gap:12px;padding:0 16px 16px;display:grid}.activity-list-heading{color:var(--ink);justify-content:space-between;align-items:baseline;display:flex}.activity-list-heading span{color:var(--muted);font-size:13px}.edit-activity .choice-editor{margin-top:2px}.choice-editor{border:1px solid var(--line);border-radius:10px;gap:10px;min-width:0;margin:0;padding:14px;display:grid}.choice-editor legend{color:var(--ink);padding:0 5px;font-size:14px;font-weight:700}.choice-count,.choice-hint,.choice-warning{color:var(--muted);margin:0;font-size:12px}.choice-warning{color:#bd534e}.choice-row{align-items:center;gap:8px;display:flex}.choice-row input{flex:1;min-width:0}.choice-row button,.add-choice{white-space:nowrap;font-size:13px}.choice-row button:disabled,.add-choice:disabled{opacity:.45;cursor:not-allowed}.choice-editor>label{color:var(--ink);gap:7px;font-size:13px;font-weight:700;display:grid}:root[data-theme=dark] .choice-editor{border-color:var(--line)}.advanced-json textarea{resize:vertical;min-height:420px;font:13px/1.6 ui-monospace,Consolas,monospace}.editor-actions{border-top:1px solid var(--line);justify-content:flex-end;gap:10px;padding-top:16px;display:flex}.lesson-editor-page{padding-bottom:112px}.editor-actions.is-floating{z-index:60;left:50%;bottom:max(14px, env(safe-area-inset-bottom));border:1px solid color-mix(in srgb, var(--line) 75%, transparent);background:color-mix(in srgb, var(--paper) 88%, transparent);-webkit-backdrop-filter:blur(18px);backdrop-filter:blur(18px);border-radius:16px;justify-content:space-between;align-items:center;width:min(680px,100% - 28px);padding:10px;position:fixed;transform:translate(-50%);box-shadow:0 12px 32px #17234a2b}.field-invalid{border-color:#cf454c!important;box-shadow:0 0 0 2px #cf454c2b!important}.field-invalid-group{border:1px solid #cf454c!important;box-shadow:0 0 0 2px #cf454c2b!important}.song-part-tab-list [role=tab].has-validation-error{outline-offset:2px;outline:2px solid #cf454c}.lesson-editor-page .slide-image-card label{width:100%;color:var(--ink);gap:7px;font-size:13px;font-weight:600;display:grid}.lesson-editor-page .slide-image-card input[type=url]{border:1px solid var(--line);width:100%;min-height:42px;color:var(--ink);background:var(--surface-muted);border-radius:8px;padding:9px 12px;font:14px Google Sans,sans-serif}.lesson-editor-page .editor-actions .button{min-height:44px;padding:0 18px}.lesson-editor-page .editor-actions .button-soft{border:1px solid var(--line);background:var(--paper)}.song-editor-card{background:color-mix(in srgb, var(--paper) 96%, var(--aqua));gap:20px}.song-editor-card .editor-toolbar{align-items:flex-start}.song-editor-card .edit-fields{gap:18px}.song-editor-card .edit-metadata,.song-editor-card .edit-activity,.song-editor-card .lesson-palette-editor{border-radius:15px}.song-editor-card .activity-toggle{cursor:pointer;min-height:58px}.song-editor-card .activity-toggle:hover{background:color-mix(in srgb, var(--aqua) 32%, transparent)}.song-editor-card .editor-actions .button-primary{min-height:46px;box-shadow:0 4px 0 color-mix(in srgb, var(--primary) 78%, #111), 0 8px 16px #3036c626;border-radius:13px;padding:0 20px}.lesson-palette-editor{border:1px solid var(--line);background:var(--surface-muted);border-radius:12px;min-width:0}.lesson-palette-editor>summary{color:var(--ink);cursor:pointer;justify-content:space-between;align-items:center;gap:12px;padding:14px 16px;list-style:none;display:flex}.lesson-palette-editor>summary::-webkit-details-marker{display:none}.palette-chevron{color:var(--primary);font-size:15px;transition:transform .2s}.lesson-palette-editor[open] .palette-chevron{transform:rotate(180deg)}.lesson-palette-editor summary span{gap:4px;display:grid}.lesson-palette-editor summary b{font:700 16px var(--heading)}.lesson-palette-editor summary small,.palette-preview-note{color:var(--muted);font-size:12px}.palette-editor-content{gap:13px;padding:0 14px 14px;display:grid}.palette-reset{justify-self:start;font-size:12px}.palette-color-grid{grid-template-columns:repeat(auto-fit,minmax(125px,1fr));gap:8px;display:grid}.palette-color-grid label{border:1px solid var(--line);background:var(--paper);border-radius:8px;justify-content:space-between;align-items:center;min-width:0;padding:8px;color:var(--ink)!important;gap:7px!important;font-size:12px!important;display:flex!important}.palette-color-grid input[type=color]{border:1px solid var(--line);cursor:pointer;border-radius:6px;min-width:34px;height:30px;width:34px!important;min-height:30px!important;padding:2px!important}.lesson-palette-preview{border:1px solid var(--line);border-radius:12px;grid-template-rows:1fr 1fr;min-height:200px;display:grid;position:relative;overflow:hidden}.preview-opposites{grid-template-rows:1fr 1fr}.palette-preview-timer{background:var(--lesson-accent);width:58px;height:58px;color:var(--lesson-accent-text);box-shadow:inset 0 2px 3px #fff, 0 4px 0 color-mix(in srgb, var(--lesson-accent), black 24%), 0 6px 12px #091a3430;border:2px solid #ffffffd6;border-radius:50%;place-items:center;font-size:32px;font-weight:800;display:grid;position:absolute;top:50%;right:18px;transform:translateY(-50%)}.palette-preview-primary,.palette-preview-secondary{background:var(--lesson-primary);color:var(--lesson-primary-text);text-align:center;place-items:center;padding:12px;font:800 clamp(24px,4vw,38px)/1.1 Google Sans,sans-serif;display:grid}.palette-preview-secondary{background:var(--lesson-secondary);color:var(--lesson-secondary-text)}.palette-preview-options{background:var(--lesson-secondary);grid-template-columns:repeat(3,minmax(0,1fr));align-items:center;gap:8px;padding:12px;display:grid}.palette-preview-options span{min-height:54px;color:var(--lesson-choice-text);background:var(--lesson-choice);box-shadow:inset 0 2px 2px #ffffffb0, 0 4px 0 color-mix(in srgb, var(--lesson-choice), black 18%);text-align:center;border-radius:10px;place-items:center;padding:8px;font-size:12px;font-weight:700;display:grid}.palette-preview-options .palette-preview-correct{color:var(--lesson-correct-text);background:linear-gradient(#effff1,#ccefd2 58%,#a8d9b2);outline:2px solid #4b985c}.palette-preview-note{margin:0}:root[data-theme=dark] .edit-fields input,:root[data-theme=dark] .edit-fields select,:root[data-theme=dark] .edit-fields textarea,:root[data-theme=dark] .advanced-json textarea,:root[data-theme=dark] .lesson-editor-page .slide-image-card input[type=url]{border-color:var(--line);color:var(--ink);background:var(--surface-muted)}@media (width<=680px){.lesson-editor-card{padding:16px}.editor-toolbar{flex-direction:column;align-items:stretch}.editor-views button{flex:1}.palette-color-grid{grid-template-columns:repeat(2,minmax(0,1fr))}.palette-preview-options span{min-height:44px;padding:6px 3px;font-size:10px}}.delete-dialog{border:1px solid var(--line);width:min(92vw,440px);color:var(--ink);background:var(--paper);border-radius:18px;padding:26px;box-shadow:0 24px 80px #10182745}.delete-dialog::backdrop{-webkit-backdrop-filter:blur(5px);backdrop-filter:blur(5px);background:#10182780}.delete-dialog-icon{color:#b94246;background:#ffe9e7;border-radius:14px;place-items:center;width:44px;height:44px;font-size:19px;display:grid}.delete-dialog h2{font:700 24px/1.15 var(--heading);margin:16px 0 6px}.delete-dialog p{color:var(--muted);margin:0;line-height:1.55}.delete-dialog p b{color:var(--ink)}.delete-dialog-actions{justify-content:flex-end;gap:10px;margin-top:22px;display:flex}.delete-dialog-actions .button{min-height:42px;padding:0 15px}.delete-dialog-actions .button-soft{border:1px solid var(--line);background:var(--surface-muted);color:var(--ink)}.button-danger{color:#fff;background:linear-gradient(#e26c6b,#bd414c);border:1px solid #bc4448;box-shadow:0 4px #8e3542,0 7px 14px #bc44482c}.button-danger:hover{background:linear-gradient(#d85d61,#aa3542)}.delete-progress{color:var(--muted);align-items:center;gap:10px;margin-top:18px;font-size:14px;display:flex}.delete-error{color:#96383c;background:#fff0ee;border-radius:9px;align-items:flex-start;gap:9px;margin-top:16px;padding:11px 12px;font-size:13px;line-height:1.5;display:flex}:root[data-theme=dark] .delete-dialog-icon{color:#ffb5ac;background:#442a32}:root[data-theme=dark] .delete-error{color:#ffb8b0;background:#3b252b}@media (width<=480px){.delete-dialog{padding:20px}.delete-dialog-actions{flex-direction:column-reverse}.delete-dialog-actions .button{width:100%}}.lesson-share-icon{width:44px;height:44px;color:var(--accent-strong);background:var(--accent-soft);border-radius:14px;place-items:center;font-size:19px;display:grid}.lesson-share-dialog h2{overflow-wrap:anywhere}.lesson-share-media{background:var(--surface-muted);color:var(--ink);cursor:pointer;border-radius:14px;align-items:flex-start;gap:12px;margin-top:18px;padding:14px;display:flex}.lesson-share-media input{width:18px;height:18px;accent-color:var(--accent-strong);flex:none;margin:2px 0 0}.lesson-share-media span{gap:4px;display:grid}.lesson-share-media small,.lesson-share-version{color:var(--muted);line-height:1.45}.lesson-share-details{border:1px solid var(--line);background:var(--surface-muted);border-radius:14px;margin-top:16px;padding:14px}.lesson-share-link{gap:8px;display:flex}.lesson-share-link input{border:1px solid var(--line);min-width:0;min-height:42px;color:var(--ink);background:var(--surface);border-radius:10px;flex:1;padding:0 10px}.lesson-share-link .button{flex:none}.lesson-share-version{margin-top:10px;display:block}.lesson-share-dialog .delete-dialog-actions{flex-wrap:wrap;justify-content:flex-start;margin-inline:8px;display:flex}.lesson-share-dialog .delete-dialog-actions .button{min-height:48px;padding:8px 14px;line-height:1.2}.lesson-share-dialog .delete-dialog-actions .button-primary{order:-1}@media (width>=481px){.lesson-share-dialog .delete-dialog-actions .button:not(.button-primary){flex:calc(50% - 5px);min-width:0}.lesson-share-dialog .delete-dialog-actions .button-primary{flex:1 0 100%}}@media (width<=480px){.lesson-share-dialog .delete-dialog-actions{flex-direction:column}.lesson-share-dialog .delete-dialog-actions .button{width:100%}.lesson-share-details{padding:12px}.lesson-share-link{flex-direction:column}.lesson-share-link .button{min-height:42px}}.shared-lesson-page{background:var(--app-bg);min-height:100vh;color:var(--ink);place-items:center;padding:28px;display:grid}.shared-lesson-page>section{border:1px solid var(--line);background:var(--paper);border-radius:24px;width:min(100%,680px);padding:clamp(24px,6vw,48px);box-shadow:0 20px 70px #10182720}.shared-lesson-page h1{font:700 clamp(30px, 5vw, 48px)/1.05 var(--heading);overflow-wrap:anywhere;margin:14px 0 8px}.shared-lesson-page p{color:var(--muted);line-height:1.6}.shared-lesson-meta{flex-wrap:wrap;gap:8px;margin:20px 0;display:flex}.shared-lesson-meta span{background:var(--surface-muted);color:var(--ink);border-radius:999px;padding:7px 11px;font-size:13px}.shared-lesson-privacy{background:var(--surface-muted);border-radius:14px;padding:14px}.shared-lesson-page .button{margin:6px 8px 0 0}.mac-folder-custom-icon{object-fit:contain;filter:drop-shadow(0 5px 3px #25334a24);width:54px;height:54px}.folder-icon-loading{place-items:center;width:54px;height:54px;display:grid}.folder-icon-loading>span{border:3px solid color-mix(in srgb,var(--aqua-deep) 35%,transparent);border-top-color:var(--primary);border-radius:50%;width:25px;height:25px;animation:.75s linear infinite folder-icon-spin}@keyframes folder-icon-spin{to{transform:rotate(360deg)}}.folder-icon-trigger{color:var(--primary);grid-column:1/-1;justify-content:center;align-items:center;gap:6px;padding:0 6px;font-size:11px;display:flex;border:1px solid var(--line)!important;background:var(--surface-muted)!important;border-radius:8px!important;width:100%!important;height:30px!important}.folder-icon-dialog{border:1px solid var(--line);width:min(92vw,520px);max-height:90vh;color:var(--ink);background:var(--paper);border-radius:20px;padding:28px;position:fixed;overflow:auto;box-shadow:0 24px 80px #10182745}.folder-icon-dialog::backdrop{-webkit-backdrop-filter:blur(5px);backdrop-filter:blur(5px);background:#10182780}.folder-icon-dialog h2{font:700 26px/1.12 var(--heading);margin:5px 0}.folder-icon-dialog>p{color:var(--muted);margin:0 0 16px;font-size:13px;line-height:1.5}.folder-icon-kicker{color:var(--muted);letter-spacing:1px;font-size:11px;font-weight:700}.folder-icon-close{width:32px;height:32px;color:var(--muted);background:var(--surface-muted);border:0;border-radius:50%;position:absolute;top:13px;right:13px}.folder-icon-guide{border:1px solid var(--line);background:var(--surface-muted);border-radius:12px;margin:15px 0;padding:14px;font-size:13px}.folder-icon-guide ol{color:var(--muted);gap:6px;margin:8px 0 0;padding-left:20px;line-height:1.45;display:grid}.folder-icon-disclaimer{border-top:1px solid var(--line);color:var(--muted);margin:10px 0 0;padding-top:9px;font-size:11px;line-height:1.45}.folder-icon-guide a{color:var(--primary);font-weight:700;text-decoration:underline}.folder-icon-drop{border:1px dashed var(--aqua-deep);color:var(--muted);background:color-mix(in srgb,var(--aqua) 28%,var(--paper));text-align:center;border-radius:13px;justify-items:center;gap:8px;padding:19px;display:grid}.folder-icon-drop>i{color:var(--primary);font-size:22px}.folder-icon-drop b{color:var(--ink);font-size:14px}.folder-icon-drop small{font-size:12px}.folder-icon-drop .button{border:1px solid var(--line);min-height:38px;padding:0 14px}.folder-icon-current{border:1px solid var(--line);color:var(--muted);border-radius:10px;justify-content:space-between;align-items:center;margin-top:12px;padding:9px 12px;font-size:12px;display:flex}.folder-icon-current img{object-fit:contain;width:48px;height:48px}.folder-icon-dialog progress{width:100%;height:8px;accent-color:var(--primary)}.folder-icon-error,.folder-icon-message{margin:12px 0 0;font-size:13px;line-height:1.45}.folder-icon-error{color:#a04439}.folder-icon-message{color:var(--success)}.folder-icon-retry{margin-top:10px}.folder-icon-dialog footer{justify-content:flex-end;gap:9px;margin-top:18px;display:flex}.folder-icon-dialog footer .button{min-height:39px;padding:0 13px}.folder-icon-dialog .folder-icon-remove{color:#a04439;background:#fff5f2;border:1px solid #e6b7af}:root[data-theme=dark] .folder-icon-dialog .folder-icon-remove{color:#ffc3b6;background:#392724;border-color:#75433b}@media (width<=480px){.folder-icon-dialog{padding:22px 17px}.folder-icon-dialog footer{flex-direction:column-reverse}.folder-icon-dialog footer .button{width:100%}}.folder-organize-row{flex-wrap:wrap;justify-content:flex-end;min-width:0;margin-bottom:-16px;display:flex}.folder-organize-row .button{border:1px solid var(--line);max-width:100%;min-height:34px;color:var(--ink);box-shadow:0 2px 0 color-mix(in srgb,var(--line) 80%,transparent),0 4px 12px #26354a0d;white-space:normal;padding:0 11px;font-size:12px;background:color-mix(in srgb,var(--paper) 88%,var(--aqua))!important}.folder-organize-row .button:hover{border-color:var(--aqua-deep);background:var(--paper)!important}:root[data-wallpaper=custom] .folder-organize-row .button{-webkit-backdrop-filter:blur(25px)saturate(175%);text-shadow:0 1px 6px #08172b99;color:#fff!important;box-shadow:none!important;background:0 0!important;border:0!important}:root[data-wallpaper=custom] .folder-organize-row .button:hover{box-shadow:none!important;background:0 0!important;border:0!important}.organize-folders-dialog{border:1px solid var(--line);width:min(92vw,420px);color:var(--ink);background:var(--paper);border-radius:18px;padding:25px;box-shadow:0 20px 70px #10182745}.organize-folders-dialog::backdrop{-webkit-backdrop-filter:blur(4px);backdrop-filter:blur(4px);background:#10182780}.organize-folders-icon{width:40px;height:40px;color:var(--primary);background:var(--aqua);border-radius:12px;place-items:center;display:grid}.organize-folders-dialog h2{font:700 22px/1.2 var(--heading);margin:14px 0 6px}.organize-folders-dialog p{color:var(--muted);font-size:14px;line-height:1.5}.organize-folders-dialog footer{justify-content:flex-end;gap:9px;margin-top:20px;display:flex}.organize-folders-dialog footer .button{border-radius:11px;min-height:42px;padding:0 15px;font-weight:700}.organize-cancel{box-shadow:0 3px #d6e3e4,0 5px 12px #26354a12;border:1px solid var(--line)!important;color:var(--ink)!important;background:linear-gradient(#fff,#f1f6f5)!important}.organize-confirm{box-shadow:0 4px #252b9b,0 7px 14px #3036c634;color:#fff!important;background:linear-gradient(#555cf0,#3036c6)!important;border:1px solid #282eac!important}.organize-folders-dialog footer .button:hover{transform:translateY(-1px)}.organize-folders-dialog footer .button:active{transform:translateY(2px);box-shadow:0 1px #252b9b}:root[data-theme=dark] .organize-cancel{box-shadow:0 3px #141c2a;background:linear-gradient(#293449,#202a3a)!important}.folder-text-color-control{color:var(--ink);gap:5px;font-size:12px;display:grid}.folder-text-color-control>div{align-items:center;gap:8px;display:flex}.folder-text-color-control input[type=color]{width:46px;height:36px;min-height:36px;padding:3px}.folder-text-color-control .button{border:1px solid var(--line);background:var(--surface);min-height:34px;color:var(--ink);padding:0 12px}.folder-text-color-control small{color:var(--muted);font-size:11px}.folder-text-color-control.is-disabled{opacity:.58}.folder-shadow-customize{border:1px solid var(--line);background:var(--surface);border-radius:11px;grid-template-columns:minmax(110px,auto) 1fr;align-items:center;gap:8px 14px;padding:10px 12px;display:grid}.folder-shadow-customize label{color:var(--ink);gap:5px;font-size:12px;display:grid}.folder-shadow-customize label>span{color:var(--muted);justify-self:end}.folder-shadow-customize input[type=color]{width:44px;height:34px;min-height:34px;padding:3px}.folder-shadow-customize label:nth-child(2){grid-template-columns:1fr auto;align-items:center}.folder-shadow-customize label:nth-child(2) input{grid-column:1/-1;width:100%}.folder-shadow-customize>small{color:var(--muted);grid-column:1/-1;font-size:11px}.folder-shadow-customize.is-disabled{opacity:.55}:root[data-wallpaper=custom][data-folder-cards=glass][data-folder-text-color=custom] .app-shell .mac-folder-open b,:root[data-wallpaper=custom][data-folder-cards=glass][data-folder-text-color=custom] .app-shell .mac-folder-open small,.folder-style-preview[data-wallpaper=custom][data-folder-cards=glass][data-folder-text-color=custom] .folder-preview-card>b,.folder-style-preview[data-wallpaper=custom][data-folder-cards=glass][data-folder-text-color=custom] .folder-preview-card>small{color:var(--folder-text-color)}:root[data-wallpaper=custom][data-folder-text-shadow=on] .app-shell .mac-folder-open b,:root[data-wallpaper=custom][data-folder-text-shadow=on] .app-shell .mac-folder-open small,.folder-style-preview[data-wallpaper=custom][data-folder-text-shadow=on] .folder-preview-card>b,.folder-style-preview[data-wallpaper=custom][data-folder-text-shadow=on] .folder-preview-card>small{text-shadow:0 1px 4px var(--folder-text-shadow-color),0 0 8px var(--folder-text-shadow-color)}.lesson-player{color:#fff;width:100vw;height:100vh;min-height:440px;display:grid;position:relative;overflow:hidden}.fill-player{grid-template-columns:minmax(104px,10%) minmax(0,62.5%) minmax(255px,27.5%)}.opposites-player{grid-template-columns:minmax(150px,13.4%) minmax(0,1fr)}.player-rail{color:#fff;background:#d0d0d0;flex-direction:column;align-items:center;min-width:0;display:flex}.player-rail-instruction{color:#fff;align-items:flex-start;width:100%;min-height:35%;padding:24px 10px;font-size:clamp(16px,1.8vw,25px);font-weight:700;line-height:1.35;display:flex}.fill-rail .player-rail-instruction{background:var(--lesson-primary);color:var(--lesson-primary-text)}.player-rail-controls{flex-direction:column;flex:1;align-items:center;gap:16px;width:100%;padding:28px 9px 15px;display:flex}.player-round{aspect-ratio:1;color:#fff;border:2px solid #ffffff52;border-radius:50%;flex:none;place-items:center;width:min(100%,112px);display:grid;box-shadow:0 5px 9px #0003,inset 0 2px 4px #ffffff38}.player-round i{font-size:clamp(36px,5vw,62px)}.player-round.next{background:var(--lesson-primary);margin-top:20px}.player-round.previous{background:#55666b;width:min(72%,74px)}.player-round.previous i{font-size:35px}.player-round.home{color:#fff;background:linear-gradient(#f4976c,#df5b67);margin-top:auto}.player-help-button{background:var(--primary);color:#fff;width:42px;height:42px;box-shadow:inset 0 2px 2px #fff5, 0 3px 0 var(--primary-dark), 0 5px 10px #091a3430;border:1px solid #ffffffbd;border-radius:50%;flex:none;font-size:19px}.player-help-button:hover{transform:translateY(-2px)}.player-slide-number{color:#fff;background:#080808;border:2px solid #fff;border-radius:20px;place-items:center;width:78%;min-height:128px;margin-top:13px;font-size:clamp(62px,7vw,106px);font-weight:500;display:grid;box-shadow:0 3px 6px #0007}.opposites-rail .player-rail-instruction{background:var(--lesson-primary);width:calc(100% - 24px);min-height:136px;color:var(--lesson-primary-text);text-align:center;border-radius:22px;justify-content:center;align-items:center;margin:12px;padding:15px 9px;font-size:clamp(16px,1.5vw,21px);line-height:1.2}.opposites-rail .player-rail-controls{padding-top:17px}.opposites-rail .player-round.next,.opposites-rail .player-round.home{width:min(100%,145px)}.opposites-rail .player-round.next{background:var(--lesson-primary)}.opposites-rail .player-round.home{color:#fff;background:linear-gradient(#f4976c,#df5b67)}.fill-stage{grid-template-rows:minmax(0,2fr) minmax(0,1fr);min-width:0;min-height:0;display:grid}.fill-visual{background:var(--lesson-secondary);min-height:0;position:relative;overflow:hidden}.fill-visual>img{object-fit:cover;width:100%;height:100%;position:absolute;inset:0}.fill-question{background:var(--lesson-primary);text-align:center;place-items:center;min-height:0;padding:22px;display:grid}.fill-question h1{max-width:100%;color:var(--lesson-primary-text);margin:0;font:700 clamp(34px,5vw,68px)/1.2 Google Sans,sans-serif}.fill-question .filled-answer-mark{color:var(--lesson-accent-text);background:var(--lesson-accent);-webkit-box-decoration-break:clone;box-decoration-break:clone;border-radius:.12em;padding:0 .1em}.fill-question .blank-mark{color:var(--lesson-primary-text);background:0 0}.fill-answers{background:var(--lesson-secondary);flex-direction:column;justify-content:space-evenly;gap:17px;min-width:0;padding:20px 18px;display:flex;overflow-y:auto}.fill-player.no-image{grid-template-rows:minmax(0,.85fr) minmax(0,1.15fr);grid-template-columns:minmax(104px,10%) minmax(0,1fr)}.fill-player.no-image .player-rail{grid-area:1/1/span 2}.fill-player.no-image .fill-stage{display:contents}.fill-player.no-image .fill-question{grid-area:1/2}.fill-player.no-image .fill-answers{grid-area:2/2;grid-template-columns:repeat(2,minmax(0,1fr));align-content:center;gap:16px;padding:clamp(16px,3vw,36px);display:grid}.fill-player.no-image .fill-answer{min-height:clamp(74px,15vh,132px)}.fill-answer{border:2px solid color-mix(in srgb, var(--lesson-choice), white 35%);min-height:clamp(84px,19vh,156px);color:var(--lesson-choice-text);background:linear-gradient(180deg, color-mix(in srgb, var(--lesson-choice), white 20%), var(--lesson-choice) 45%, color-mix(in srgb, var(--lesson-choice), black 12%));border-radius:25px;padding:14px 12px;font-size:clamp(18px,2.7vw,40px);font-weight:700;line-height:1.17;transition:opacity .42s,transform .42s;box-shadow:0 5px 8px #0007,inset 0 2px 3px #ffffff45}.fill-answer.selected{outline:4px solid var(--lesson-primary);outline-offset:2px}.fill-answer.correct{outline-offset:2px;color:var(--lesson-correct-text);border-color:#4b985c;outline:5px solid #4b985c}.fill-answer.eliminated{opacity:0;pointer-events:none;transform:scale(.94)}.fill-answer.reveal-answer{min-height:120px}.opposites-stage{grid-template-rows:1fr 1fr;min-width:0;min-height:0;display:grid;position:relative}.opposite-word-panel{background:var(--lesson-primary);place-items:center;display:grid;position:relative}.opposite-counter{color:var(--lesson-primary-text);letter-spacing:1px;font-size:clamp(12px,1.3vw,17px);font-weight:600;position:absolute;top:18px;right:22px}.opposite-timer{z-index:3;background:var(--lesson-accent);width:112px;height:112px;color:var(--lesson-accent-text);box-shadow:inset 0 3px 5px #fff, 0 7px 0 color-mix(in srgb, var(--lesson-accent), black 24%), 0 12px 24px #091a3450;border:3px solid #ffffffd6;border-radius:50%;place-items:center;font-size:clamp(58px,7vw,78px);font-weight:800;line-height:1;display:grid;position:absolute;top:50%;right:22px;transform:translateY(-50%)}.opposite-timer.urgent,.opposite-timer.finished{background:color-mix(in srgb, var(--lesson-accent), #df5b67 18%);box-shadow:inset 0 3px 5px #fff8, 0 7px 0 color-mix(in srgb, var(--lesson-accent), #8d3445 35%), 0 12px 24px 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var(--line) 80%, var(--surface)) var(--song-progress,0%));cursor:pointer;border-radius:9px;height:6px;margin:0}.builder-fields .song-audio-player .song-player-track input[type=range],.builder-fields .song-audio-player .song-volume-control input[type=range],.edit-fields .song-audio-player input[type=range]{box-sizing:border-box;background:linear-gradient(to right, var(--primary) var(--song-progress,0%), color-mix(in srgb, var(--line) 80%, var(--surface)) var(--song-progress,0%));width:100%;height:6px;min-height:6px;box-shadow:none;border:0;border-radius:9px;padding:0}.song-player-track input{width:100%}.song-player-track input::-webkit-slider-thumb{appearance:none;background:var(--primary);border:2px solid #fff;border-radius:50%;width:14px;height:14px;box-shadow:0 1px 4px #17234a55}.song-volume-control input::-webkit-slider-thumb{appearance:none;background:var(--primary);border:2px solid #fff;border-radius:50%;width:14px;height:14px;box-shadow:0 1px 4px #17234a55}.song-player-track 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#18254a16}.song-phrases-list{align-content:start;gap:7px;padding-right:2px;display:grid;overflow:auto}.song-phrases-list>div{background:var(--surface-muted);border-radius:11px;justify-content:space-between;align-items:center;gap:10px;min-height:44px;padding:8px 10px;display:flex}.song-phrases-list>div>span{overflow-wrap:anywhere;min-width:0;font-size:13px}.song-phrases-list>div button{background:var(--aqua);min-height:32px;color:var(--primary);cursor:pointer;border:0;border-radius:9px;flex:none;align-items:center;gap:5px;padding:0 9px;font:700 12px Google Sans,sans-serif;display:inline-flex}.song-phrases-list>div button:disabled{background:var(--surface);color:var(--muted);cursor:not-allowed}.song-phrases-list>div small,.song-phrases-list>p,.song-phrases-list>small{color:var(--muted);font-size:12px}.song-phrases-list>p{margin:8px 2px}@media (width<=560px){.song-phrases-backdrop{background:#101a2b62;justify-content:center;padding:10px}.song-phrases-dialog{width:100%;max-height:84vh;padding:14px}.song-timeline-track-wrap{padding-bottom:29px}.song-timeline-row{grid-template-columns:58px minmax(0,1fr);gap:7px}.song-timeline-row-time{grid-column:2;justify-self:end;margin-top:-7px}.song-timeline-play{gap:4px;font-size:11px}.song-timeline footer span:last-child{display:none}.song-choice-fields{grid-template-columns:1fr}}.shimmer{background:linear-gradient(100deg,#e5f2f4 20%,#f8ffff 42%,#e5f2f4 64%) 0 0/220% 100%;animation:1.5s ease-in-out infinite shimmer}@keyframes shimmer{to{background-position-x:-220%}}.skeleton-topbar{border-bottom:1px solid var(--line);justify-content:space-between;align-items:center;height:68px;display:flex}.skeleton-line{border-radius:6px;height:14px}.skeleton-line.short{width:145px}.skeleton-line.medium{width:205px}.skeleton-title{border-radius:8px;width:min(390px,70%);height:38px;margin:12px 0 8px}.skeleton-title.small{width:180px;height:28px;margin:0}.skeleton-avatar{border-radius:50%;width:34px;height:34px}.skeleton-welcome{margin:38px 0 24px}.skeleton-library{justify-content:space-between;align-items:end;margin-bottom:19px;display:flex}.skeleton-recent{grid-template-columns:repeat(4,minmax(0,1fr));gap:12px;margin:-3px 0 29px;display:grid}.skeleton-recent-card{border:1px solid var(--line);opacity:.7;border-radius:12px;height:126px}.skeleton-folder-canvas{min-height:0;padding-top:8px}.skeleton-group-kicker,.skeleton-group-title{border-radius:5px;display:block}.skeleton-group-kicker{width:108px;height:10px;margin-bottom:6px}.skeleton-group-title{width:138px;height:18px}.skeleton-mac-folder{align-content:start;justify-items:center;gap:8px}.skeleton-folder-icon{clip-path:polygon(0 18%,36% 18%,47% 30%,100% 30%,100% 100%,0 100%);border-radius:5px 8px 7px 7px;width:58px;height:43px;margin-bottom:8px}.skeleton-folder-label{border-radius:5px;width:70px;height:12px}.skeleton-folder-count{border-radius:5px;width:42px;height:9px}.skeleton-dock{border:1px solid var(--line);opacity:.65;border-radius:21px;width:226px;height:74px;position:fixed;bottom:18px;left:50%;transform:translate(-50%)}.skeleton-card{background:#fff;border:1px solid #dcebed;border-radius:12px;min-width:0;padding:8px}.skeleton-art{border-radius:8px;height:146px}.skeleton-card-row{gap:6px;margin:13px 4px 10px;display:flex}.skeleton-pill{border-radius:5px;width:75px;height:20px}.skeleton-pill.short{width:38px}.skeleton-card .skeleton-line{height:12px;margin:7px 4px}.skeleton-card .skeleton-line.shorter{width:72%}.skeleton-card-footer{border-top:1px solid #eef3f3;justify-content:space-between;margin:13px 4px 4px;padding-top:9px;display:flex}.skeleton-card-footer .tiny{width:72px;height:10px;margin:0}@media (prefers-reduced-motion:reduce){.shimmer{animation:none}}.skeleton-back{border-radius:9px;width:110px;height:36px}.skeleton-field{border-radius:9px;height:43px}.skeleton-save{border-radius:10px;width:138px;height:42px}.skeleton-theme{border-top:1px solid var(--line);justify-content:space-between;align-items:center;margin-top:26px;padding-top:22px;display:flex}.skeleton-theme-toggle{border-radius:10px;width:145px;height:39px}@media (width<=780px){.skeleton-folder-canvas{grid-template-columns:repeat(auto-fill,92px);justify-content:space-around}.skeleton-recent{grid-template-columns:repeat(2,minmax(0,1fr))}.skeleton-dock{bottom:10px}}@media (width<=480px){.skeleton-recent{grid-template-columns:1fr}}@media (width<=600px){.profile-skeleton .profile-card{margin:30px auto;padding:22px}.skeleton-theme{flex-direction:column;align-items:flex-start}}