:root{--accent:#2089ca;--accent-strong:#1672aa;--accent-ink:#12628f;--accent-wash:#2089ca24;--accent-edge:#2089ca52;--secondary-wash:#20a09d24;--accent-soft:#2089ca1f;--accent-softer:#2089ca14;--bg-page:radial-gradient(circle at top left, #2089ca2e, transparent 34rem), linear-gradient(180deg, #f5fbff 0%, #eaf5fb 100%);--border:#2089ca24;--border-strong:#2089ca33;--danger-bg:#fff5f4;--danger-border:#c4322a38;--danger-text:#b42318;--field-bg:#f7fbff;--focus-ring:#2089ca59;--on-accent:#fff;--success-bg:#ecfdf3;--success-border:#d1fadf;--success-text:#027a48;--surface:#ffffffc7;--surface-solid:#fff;--surface-muted:#f7fbff;--surface-raised:#fff;--text:#315168;--text-heading:#0f2f49;--text-muted:#5f7c91;--text-soft:#667085;--text-utility:#24506a;--track:#e8f4fb;--video-bg:#071d2c;--warning-bg:#fff4d6;--warning-border:#e8bf62;--warning-text:#805400;color:var(--text);background:var(--bg-page);font-synthesis:none;text-rendering:optimizelegibility;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;font-family:Inter,ui-sans-serif,system-ui,-apple-system,BlinkMacSystemFont,Segoe UI,sans-serif;line-height:1.5}:root[data-theme=dark]{--accent:#55b8ea;--accent-strong:#7dccf4;--accent-ink:#8bd8fa;--accent-wash:#55b8ea2e;--accent-edge:#82caef61;--secondary-wash:#37beb329;--accent-soft:#55b8ea2e;--accent-softer:#55b8ea1f;--bg-page:radial-gradient(circle at top left, #55b8ea33, transparent 32rem), linear-gradient(180deg, #081722 0%, #0d2230 100%);--border:#82caef2e;--border-strong:#82caef47;--danger-bg:#b4231829;--danger-border:#f8717147;--danger-text:#fda4af;--field-bg:#0d2738;--focus-ring:#55b8ea6b;--on-accent:#05131b;--success-bg:#027a4833;--success-border:#34d39942;--success-text:#86efac;--surface:#0d2230d1;--surface-solid:#102b3d;--surface-muted:#0d2738;--surface-raised:#123247;--text:#c9dce8;--text-heading:#f2f8fb;--text-muted:#9eb8c8;--text-soft:#a8bac6;--text-utility:#d7edf8;--track:#1e4357;--video-bg:#050c12;--warning-bg:#b27b0038;--warning-border:#fbbf247a;--warning-text:#fcd46a}*{box-sizing:border-box}body{min-width:320px;margin:0}button,input{letter-spacing:0}button:focus-visible,input:focus-visible,select:focus-visible,textarea:focus-visible,video:focus-visible{outline:3px solid var(--focus-ring);outline-offset:2px}.app-shell{min-height:100svh;padding:30px}.topbar{justify-content:space-between;align-items:center;gap:20px;max-width:1440px;margin:0 auto 24px;display:flex}.brand,.brand-link-button{align-items:center;gap:14px;display:flex}.topbar-brand-area{flex-wrap:wrap;align-items:center;gap:16px;display:flex}.brand-link-button{cursor:pointer;text-align:left;background:0 0;border:none;outline:none;padding:0;font-family:inherit}.brand-mark{background:linear-gradient(135deg, var(--accent), var(--accent-strong));box-shadow:0 16px 34px var(--accent-soft);color:var(--on-accent);border-radius:50%;place-items:center;width:50px;height:50px;display:grid}.eyebrow,.detail-kicker,.metric-label,.status-label,.filter-header{color:var(--text-soft);letter-spacing:.06em;text-transform:uppercase;font-size:.78rem;font-weight:700}.topbar h1{color:var(--text-heading);margin:2px 0 0;font-size:clamp(1.8rem,3vw,2.75rem);line-height:1}.topbar-actions,.form-actions{flex-wrap:wrap;justify-content:flex-end;align-items:center;gap:10px;display:flex}.sr-only{white-space:nowrap;width:1px;height:1px;margin:-1px;position:absolute;overflow:hidden}.theme-selector{background:var(--surface);border:1px solid var(--border);color:var(--text-utility);border-radius:999px;flex:none;justify-content:center;align-items:center;width:42px;height:42px;min-height:42px;padding:0;font-weight:800;display:inline-flex;position:relative;overflow:hidden}.theme-selector select{appearance:none;color:inherit;cursor:pointer;font:inherit;opacity:0;background:0 0;border:0;outline:0;width:100%;position:absolute;inset:0}.complete-button{border-radius:999px;align-items:center;gap:8px;min-height:42px;font-weight:700;display:inline-flex}.utility-button{background:var(--surface);border:1px solid var(--border);color:var(--text-utility);cursor:pointer;border-radius:999px;align-items:center;gap:8px;min-height:42px;padding:0 14px;font-weight:800;display:inline-flex}.icon-button{justify-content:center;width:42px;padding:0}.utility-button.active-toggle{color:#fff;background:#2089ca;border-color:#2089ca}.utility-button.icon-only{flex:0 0 42px;justify-content:center;width:42px;padding:0}.count-badge{background:#ffffff3d;border-radius:999px;justify-content:center;align-items:center;min-width:22px;height:22px;padding:0 6px;font-size:.76rem;display:inline-flex}.danger-button{background:var(--danger-bg);border:1px solid var(--danger-border);color:var(--danger-text);cursor:pointer;border-radius:999px;align-items:center;gap:8px;min-height:42px;padding:0 14px;font-weight:800;display:inline-flex}.overview{border-radius:22px;grid-template-columns:repeat(3,minmax(0,1fr));gap:1px;max-width:1440px;margin:0 auto 22px;display:grid;overflow:hidden}.overview>div{background:var(--surface);border:1px solid var(--accent-soft);min-height:86px;padding:18px 20px}.metric-value{color:var(--text-heading);font-size:1.55rem;font-weight:800;line-height:1.1;display:block}.library-panel,.player-panel{background:var(--surface);border:1px solid var(--border);box-shadow:0 18px 60px #00000024}.library-panel{border-radius:24px;max-width:1440px;margin:0 auto;padding:20px}.library-intro{border-bottom:1px solid var(--accent-softer);justify-content:space-between;align-items:end;gap:20px;margin-bottom:20px;padding:2px 2px 18px;display:flex}.library-intro .eyebrow{margin:0 0 5px}.library-intro h2{color:var(--text-heading);margin:0;font-size:clamp(1.3rem,2vw,1.65rem);line-height:1.2}.library-intro p:not(.eyebrow){color:var(--text-muted);margin:6px 0 0;font-size:.92rem}.library-intro-count{background:var(--accent-softer);border:1px solid var(--accent-soft);color:var(--text-utility);white-space:nowrap;border-radius:999px;padding:8px 11px;font-size:.82rem;font-weight:800}.progress-toggle-bar{justify-content:flex-end;width:100%;max-width:1440px;margin:0 auto 12px;display:flex}.filter-group-inline{justify-content:flex-end;align-items:center;gap:10px;height:48px;display:flex}.filter-group-label{color:var(--text-muted);flex:none;align-items:center;gap:6px;font-size:.82rem;font-weight:800;display:inline-flex}.filter-group-label svg{color:var(--text-muted);flex-shrink:0}.library-toolbar{grid-template-columns:minmax(280px,420px) minmax(0,1fr);align-items:start;gap:18px;display:grid}.search-row{background:var(--surface-solid);border:1px solid var(--border-strong);border-radius:16px;align-items:center;gap:10px;height:48px;padding:0 14px;display:flex}.search-row input{color:var(--text-heading);font:inherit;background:0 0;border:0;outline:0;width:100%;min-width:0}.filter-header{align-items:center;gap:8px;margin:0 0 10px;display:flex}.tag-select-dropdown{background:var(--surface);border:1px solid var(--border);color:var(--text-heading);cursor:pointer;appearance:none;background-image:url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' width='16' height='16' viewBox='0 0 24 24' fill='none' stroke='%235f7c91' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'><polyline points='6 9 12 15 18 9'></polyline></svg>");background-position:right 14px center;background-repeat:no-repeat;border-radius:999px;outline:0;width:100%;max-width:250px;min-height:40px;padding:0 40px 0 16px;font-size:.9rem;font-weight:700;transition:border-color .15s}.tag-select-dropdown:focus{border-color:var(--accent)}.segmented-control{background:var(--surface-muted);border:1px solid var(--border);border-radius:999px;gap:2px;padding:3px;display:flex}.segment{color:var(--text-muted);cursor:pointer;background:0 0;border:0;border-radius:999px;align-items:center;gap:6px;min-height:36px;padding:0 16px;font-size:.88rem;font-weight:700;transition:all .2s;display:inline-flex}.segment.active{background:var(--surface-solid);box-shadow:0 2px 8px var(--accent-softer);color:var(--text-heading)}.library-summary{color:var(--text-muted);justify-content:space-between;align-items:center;gap:10px;margin-top:22px;font-size:.9rem;font-weight:700;display:flex}.library-result-context{flex-wrap:wrap;align-items:center;gap:7px;min-width:0;display:flex}.library-result-context strong{color:var(--text-heading)}.library-result-context span{color:var(--text-muted);font-size:.84rem}.clear-library-filters{color:var(--accent);cursor:pointer;font:inherit;background:0 0;border:0;padding:2px 4px;font-size:.82rem;font-weight:800}.clear-library-filters:hover{text-decoration:underline}.library-summary-actions{flex-wrap:wrap;justify-content:flex-end;align-items:center;gap:10px;display:flex}.video-grid{grid-template-columns:repeat(auto-fill,minmax(250px,1fr));gap:18px;margin-top:14px;display:grid}.library-display-toggle .segment{padding:0 12px}.video-list{gap:6px;margin-top:12px;display:grid}.video-list-row{background:var(--surface-solid);border:1px solid var(--accent-soft);border-radius:8px;grid-template-columns:minmax(0,1fr) auto;align-items:stretch;gap:8px;min-height:74px;padding:7px 9px;transition:box-shadow .16s,border-color .16s;display:grid}.video-list-row:hover{border-color:var(--accent);box-shadow:0 10px 24px var(--border)}.video-list-open{color:inherit;cursor:pointer;text-align:left;background:0 0;border:0;grid-template-columns:104px minmax(0,1fr);align-items:stretch;gap:10px;min-width:0;padding:0;display:grid}.video-list-poster{aspect-ratio:16/9;border-radius:6px;width:104px;display:block;position:relative;overflow:hidden}.video-list-poster img{object-fit:cover;width:100%;height:100%;display:block}.video-list-main{align-content:center;gap:4px;min-width:0;display:grid}.video-list-title{color:var(--text-heading);text-overflow:ellipsis;white-space:nowrap;flex-wrap:nowrap;align-items:center;gap:8px;min-width:0;font-weight:800;line-height:1.25;display:flex;overflow:hidden}.video-list-description{color:var(--text);-webkit-line-clamp:1;-webkit-box-orient:vertical;font-size:.82rem;line-height:1.25;display:-webkit-box;overflow:hidden}.outdated-inline{color:#862e00;text-transform:uppercase;background:#fff9db;border:1px solid #f59f00;border-radius:999px;flex:none;padding:2px 7px;font-size:.62rem;font-weight:800}[data-theme=dark] .outdated-inline{color:#fff;background:#d97706e0;border-color:#f59e0b99}.video-list-actions{align-items:center;gap:6px;display:flex}.utility-icon-button{background:var(--surface);border:1px solid var(--border);color:var(--text-utility);cursor:pointer;border-radius:999px;justify-content:center;align-items:center;width:32px;height:32px;display:inline-grid}.utility-icon-button.saved{background:var(--accent);border-color:var(--accent);color:var(--on-accent)}.utility-icon-button:hover{box-shadow:0 8px 18px #0f2f4929}.video-card{background:var(--surface-solid);border:1px solid var(--accent-soft);color:inherit;cursor:pointer;text-align:left;border-radius:22px;flex-direction:column;min-height:360px;padding:0;transition:box-shadow .16s,transform .16s,border-color .16s;display:flex;position:relative;overflow:hidden}.video-card-open{color:inherit;cursor:pointer;text-align:left;background:0 0;border:0;flex-direction:column;flex:1;padding:0;display:flex}.video-card:hover{border-color:var(--accent);box-shadow:0 12px 30px var(--border);transform:translateY(-2px)}.poster-wrap{aspect-ratio:16/9;width:100%;display:block;position:relative;overflow:hidden}.video-card img{object-fit:cover;width:100%;height:100%;display:block}.play-badge{border:1px solid var(--border-strong);color:var(--on-accent);background:#071d2cc7;border-radius:999px;place-items:center;width:38px;height:38px;display:grid;position:absolute;bottom:12px;right:12px}.card-action-button{color:#2089ca;cursor:pointer;z-index:2;background:#ffffffeb;border:1px solid #2089ca2e;border-radius:999px;place-items:center;width:38px;height:38px;display:grid;position:absolute;top:12px;right:12px}.bookmark-action{right:12px}.share-action{right:58px}.card-action-button.saved{color:#fff;background:#2089ca;border-color:#2089ca}.card-action-button:hover{box-shadow:0 8px 18px #0f2f4929}.video-card-body,.video-card-title,.video-card-meta{min-width:0}.video-card-body{gap:12px;padding:16px;display:grid}.video-card-title{color:var(--text-heading);justify-content:space-between;align-items:start;gap:8px;font-weight:800;line-height:1.2;display:flex}.video-card-title>:first-child{min-width:0}.video-card-meta{color:var(--text-muted);flex-wrap:wrap;align-items:center;gap:5px;font-size:.82rem;display:flex}.video-card-description{color:var(--text);-webkit-line-clamp:2;-webkit-box-orient:vertical;min-height:2.85em;font-size:.92rem;line-height:1.42;display:-webkit-box;overflow:hidden}.video-card-details{border-top:1px solid var(--accent-softer);gap:9px;padding-top:11px;display:grid}.video-card-facts{color:var(--text-muted);flex-wrap:wrap;align-items:center;gap:8px 14px;font-size:.8rem;display:flex}.video-card-fact{white-space:nowrap;align-items:center;gap:6px;display:inline-flex}.video-card-fact svg,.video-card-tags>svg{color:var(--accent);flex:none}.video-card-tags{flex-wrap:wrap;align-items:center;gap:6px;min-height:22px;display:flex}.video-card-tag{background:var(--accent-softer);border:1px solid var(--accent-soft);color:var(--text-utility);text-overflow:ellipsis;white-space:nowrap;border-radius:999px;max-width:130px;padding:5px 8px;font-size:.73rem;font-weight:750;line-height:1;overflow:hidden}.video-card-tag.more{background:var(--surface-muted);color:var(--text-muted)}.progress-track{background:var(--track);border-radius:999px;height:7px;display:block;overflow:hidden}.progress-track span{background:var(--accent);height:100%;display:block}.player-panel{border-radius:24px;min-width:0;overflow:hidden}.player-page{max-width:1180px;margin:0 auto}.back-button{background:var(--surface);border:1px solid var(--border);color:var(--text-utility);cursor:pointer;border-radius:999px;align-items:center;gap:8px;min-height:42px;margin-bottom:16px;padding:0 14px;font-weight:800;display:inline-flex}.video-frame{background:var(--video-bg);place-items:center;width:100%;display:grid}.video-frame video{aspect-ratio:16/9;object-fit:contain;width:100%;height:auto;display:block}.video-frame.audio-frame{padding:32px}.audio-player{justify-items:center;gap:22px;width:100%;max-width:680px;display:grid}.audio-artwork{aspect-ratio:1;color:#fff;background:#12364d;border-radius:18px;justify-content:center;align-items:center;width:min(100%,320px);display:flex;position:relative;overflow:hidden}.audio-artwork img{object-fit:cover;width:100%;height:100%}.audio-artwork svg{box-sizing:content-box;background:#041723c2;border-radius:50%;padding:12px;position:absolute}.audio-player audio{width:100%}.video-frame.vertical{background:0 0;width:min(100%,560px);margin:0 auto;padding:18px 0 28px}.video-frame.vertical video{aspect-ratio:9/16;background:var(--video-bg);border-radius:2px;width:auto;max-width:min(100%,520px);max-height:min(76vh,820px)}.learning-detail{justify-content:space-between;align-items:start;gap:22px;padding:24px;display:flex}.detail-kicker{align-items:center;gap:8px;margin-bottom:8px;display:flex}.learning-detail h2{color:var(--text-heading);margin:0 0 10px;font-size:clamp(1.45rem,2.4vw,2.25rem);line-height:1.1}.learning-detail p{color:var(--text);max-width:68ch;margin:0}.complete-button{background:var(--accent);box-shadow:0 14px 28px var(--border-strong);color:var(--on-accent);cursor:pointer;border:0;flex:none;padding:0 14px}.complete-button:disabled{cursor:wait;opacity:.68}.status-strip{border-top:1px solid var(--accent-soft);grid-template-columns:repeat(3,minmax(0,1fr));display:grid}.status-strip>div{gap:4px;min-height:82px;padding:18px 24px;display:grid}.status-strip strong{color:var(--text-heading)}.transcript-panel{border-top:1px solid var(--accent-soft);padding:20px 24px 4px}.transcript-heading{justify-content:space-between;align-items:center;gap:16px;margin-bottom:12px;display:flex}.transcript-heading>span{color:var(--text-heading);align-items:center;gap:8px;font-weight:800;display:inline-flex}.transcript-actions{flex-wrap:wrap;justify-content:flex-end;align-items:center;gap:10px;display:flex}.transcript-heading a{color:var(--accent);font-size:.9rem;font-weight:800;text-decoration:none}.transcript-toggle{min-height:36px}.transcript-search{background:var(--surface-solid);border:1px solid var(--border-strong);color:var(--text-muted);border-radius:12px;align-items:center;gap:10px;min-height:42px;margin-bottom:10px;padding:0 12px;display:flex}.transcript-search input{color:var(--text-heading);font:inherit;background:0 0;border:0;outline:0;flex:1;min-width:0}.transcript-result-count{background:var(--accent-softer);color:var(--accent);border-radius:999px;justify-content:center;align-items:center;min-width:26px;padding:3px 8px;font-size:.78rem;font-weight:800;display:inline-flex}.transcript-list{scroll-behavior:smooth;gap:8px;max-height:250px;padding:4px;display:grid;overflow-y:auto}.transcript-cue{background:var(--surface-muted);border:1px solid var(--accent-soft);color:var(--text);cursor:pointer;text-align:left;border-radius:14px;grid-template-columns:58px minmax(0,1fr);gap:10px;padding:10px 12px;transition:all .2s ease-in-out;display:grid}.transcript-cue:hover{border-color:var(--accent);background:var(--surface-muted)}.transcript-cue.active{background:var(--accent-softer);border-color:var(--accent);color:var(--text-heading);box-shadow:0 2px 8px var(--accent-softer)}.transcript-time{color:var(--accent);font-weight:800}.transcript-cue strong{color:var(--text-heading);display:block}.transcript-cue mark{color:#241a00;background:#ffe082;border-radius:4px;padding:0 2px}.transcript-empty{color:var(--text-soft);text-align:center;padding:18px 12px;font-weight:700}.related-strip{border-top:1px solid var(--accent-soft);padding:20px 24px 24px}.related-heading{justify-content:space-between;align-items:end;gap:10px;margin-bottom:12px;display:flex}.related-heading strong{color:var(--text-heading)}.related-list{grid-template-columns:repeat(3,minmax(0,1fr));gap:12px;display:grid}.related-card{background:var(--surface-solid);border:1px solid var(--accent-soft);color:inherit;cursor:pointer;text-align:left;border-radius:16px;grid-template-columns:86px minmax(0,1fr);align-items:center;gap:12px;min-height:86px;padding:8px;display:grid}.related-card:hover{border-color:var(--accent);box-shadow:0 10px 24px var(--accent-soft)}.related-card img{aspect-ratio:16/10;object-fit:cover;border-radius:12px;width:86px;height:70px}.related-title{color:var(--text-heading);align-items:center;gap:6px;font-weight:800;line-height:1.2;display:flex}.related-meta{color:var(--text-muted);align-items:center;gap:5px;margin-top:6px;font-size:.82rem;display:flex}.admin-panel{background:var(--surface);border:1px solid var(--border);border-radius:24px;max-width:1440px;margin:0 auto;padding:22px;box-shadow:0 18px 60px #00000024}.about-panel{background:var(--surface);border:1px solid var(--border);border-radius:24px;gap:22px;max-width:1440px;margin:0 auto;padding:22px;display:grid;box-shadow:0 18px 60px #00000024}.about-hero{grid-template-columns:minmax(0,1fr) minmax(280px,420px);align-items:end;gap:24px;display:grid}.about-hero h2{color:var(--text-heading);max-width:820px;margin:4px 0 12px;font-size:clamp(1.8rem,3vw,3rem);line-height:1.05}.about-hero p{color:var(--text);max-width:760px;margin:0;font-size:1rem}.about-stats{border-radius:20px;grid-template-columns:repeat(3,minmax(0,1fr));gap:1px;display:grid;overflow:hidden}.about-stats>div{background:var(--surface-solid);border:1px solid var(--accent-soft);min-height:92px;padding:16px}.about-grid{grid-template-columns:repeat(3,minmax(0,1fr));gap:14px;display:grid}.about-card{background:var(--surface-solid);border:1px solid var(--accent-soft);border-radius:8px;gap:10px;padding:18px;display:grid}.about-card svg{color:var(--accent)}.about-card h3,.about-steps h3{color:var(--text-heading);margin:0;font-size:1.05rem;line-height:1.25}.about-card p{color:var(--text-muted);margin:0}.about-feature-guide{background:var(--surface-solid);border:1px solid var(--accent-soft);border-radius:16px;grid-template-columns:minmax(240px,360px) minmax(0,1fr);align-items:start;gap:20px;padding:20px;display:grid}.about-feature-guide h3{color:var(--text-heading);margin:0;font-size:1.15rem;line-height:1.25}.about-feature-list{grid-template-columns:repeat(2,minmax(0,1fr));gap:10px;display:grid}.about-feature-list>div{background:var(--surface-muted);border:1px solid var(--border);border-radius:8px;gap:5px;padding:12px;display:grid}.about-feature-list strong,.about-help-grid h3{color:var(--text-heading)}.about-feature-list span,.about-help-grid p{color:var(--text-muted);font-size:.9rem;line-height:1.45}.about-steps{background:var(--surface-solid);border:1px solid var(--accent-soft);border-radius:20px;grid-template-columns:minmax(240px,360px) minmax(0,1fr);align-items:start;gap:20px;padding:20px;display:grid}.about-steps ol{color:var(--text);gap:10px;margin:0;padding-left:22px;display:grid}.about-steps li::marker{color:var(--accent);font-weight:900}.about-help-grid{grid-template-columns:repeat(3,minmax(0,1fr));gap:14px;display:grid}.about-help-grid article{background:var(--surface-solid);border:1px solid var(--accent-soft);border-radius:8px;padding:16px}.about-help-grid h3{margin:0 0 8px;font-size:1rem}.about-help-grid p{margin:0}.admin-heading{justify-content:space-between;align-items:end;gap:18px;margin-bottom:18px;display:flex}.admin-heading h2{color:var(--text-heading);margin:2px 0 0;font-size:clamp(1.6rem,2.5vw,2.4rem);line-height:1.05}.admin-heading 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