:root{color-scheme:dark;--bg:#0c0913;--panel:#171020;--ink:#efeaf8;--muted:#b6adc8;--line:#352444;--accent:#c087ff}
*{box-sizing:border-box}body{margin:0;background:var(--bg);color:var(--ink);font:16px/1.65 Inter,system-ui,sans-serif}a{color:var(--accent);text-underline-offset:4px}a:hover{color:var(--ink)}a:focus-visible,video:focus-visible,select:focus-visible{outline:3px solid #e4b6ff;outline-offset:5px}img{max-width:100%;height:auto}.shell{width:min(1120px,calc(100% - 40px));margin:auto}.site-header{border-bottom:1px solid var(--line);padding:18px 0}.header-row,.header-nav,.meta,.downloads{display:flex;align-items:center;gap:24px;flex-wrap:wrap}.header-row{justify-content:space-between}.header-nav a{text-decoration:none;color:var(--ink);font-weight:600}.logo{display:block;width:120px;height:40px;object-fit:contain}.skip{position:absolute;left:16px;top:-100px;background:var(--panel);padding:12px;z-index:10}.skip:focus{top:10px}main{padding-top:24px;padding-bottom:64px}.breadcrumb{display:flex;gap:10px;flex-wrap:wrap;color:var(--muted);font-size:14px}.breadcrumb a{color:var(--muted)}h1{font-size:clamp(27px,3.7vw,43px);line-height:1.2;letter-spacing:-.025em;margin:16px 0 12px}h2{line-height:1.3;font-size:26px;margin:0 0 12px}.description{color:var(--muted);max-width:900px;margin:0 0 20px}.player{width:100%;display:block;aspect-ratio:16/9;background:#100c16;border:1px solid var(--line);border-radius:16px}.meta{font-size:14px;color:var(--muted);gap:16px;margin:12px 0 22px}.badge{color:#e4caff;background:#251534;border-radius:999px;padding:3px 12px}.languages{display:flex;align-items:center;gap:10px;flex-wrap:wrap;margin:24px 0}.languages span{color:var(--muted);margin-right:8px;font-size:14px}.languages a{padding:6px 13px;border:1px solid var(--line);border-radius:99px;text-decoration:none;font-size:14px}.languages a[aria-current=page]{background:#352046;color:#fff;border-color:#8e55c0}.course-cta{display:flex;align-items:center;justify-content:space-between;gap:28px;padding:26px;border:1px solid var(--line);border-radius:16px;background:linear-gradient(120deg,#251331,#151021);margin:20px 0 24px}.course-cta p{margin:0;color:var(--muted);max-width:650px}.button{display:inline-block;text-decoration:none;color:white;background:#7926be;border:1px solid #b66fe9;padding:12px 20px;border-radius:10px;font-weight:650;text-align:center;flex-shrink:0}.button:hover{background:#9235d8}.transcript{max-width:900px}.transcript p{margin:20px 0;color:var(--muted)}.transcript time{display:inline-block;color:var(--accent);font-size:13px;margin-right:12px;font-variant-numeric:tabular-nums}.downloads{gap:18px;font-size:14px;margin:18px 0 24px}.site-footer{border-top:1px solid var(--line);padding:28px 0;color:var(--muted);font-size:14px}.footer-row{display:flex;justify-content:space-between;gap:20px;flex-wrap:wrap}.footer-row nav{display:flex;gap:18px}.cards{display:grid;grid-template-columns:repeat(auto-fit,minmax(270px,1fr));gap:24px;margin:26px 0}.card{border:1px solid var(--line);border-radius:16px;overflow:hidden;background:var(--panel);text-decoration:none;color:var(--ink)}.card img{display:block;width:100%;aspect-ratio:16/9;object-fit:cover}.card-body{padding:20px}.card h2{font-size:21px;margin:8px 0}.card p{color:var(--muted);font-size:14px;margin:8px 0}.card:hover{border-color:var(--accent)}.eyebrow{color:var(--accent);font-size:13px;font-weight:650}.catalog-title{margin-top:32px}.catalog-intro{max-width:730px;color:var(--muted)}
@media(max-width:700px){.shell{width:calc(100% - 28px)}.header-row{gap:14px}.header-nav{gap:18px;font-size:14px}.site-header{padding:14px 0}main{padding-top:18px}.course-cta{display:block;padding:20px}.course-cta .button{margin-top:18px;width:100%}.languages{gap:8px}.languages span{width:100%}.player{border-radius:10px}.description{font-size:15px}.cards{grid-template-columns:1fr}}

:root[data-theme="light"]{color-scheme:light;--bg:#fbf9ff;--panel:#fff;--ink:#241530;--muted:#60516e;--line:#dcd0e8;--accent:#7024a5}
:root[data-theme="light"] .badge{background:#efe1ff;color:#582080}
:root[data-theme="light"] .course-cta{background:linear-gradient(120deg,#f2e7fc,#fff)}
:root[data-theme="light"] .languages a[aria-current=page]{background:#eee0fa;color:#582080}
.header-nav{margin-left:auto}
@media(max-width:700px){.header-nav{margin-left:0}.theme-control{margin-left:auto}}

.logo-light{display:none}:root[data-theme="light"] .logo-dark{display:none}:root[data-theme="light"] .logo-light{display:block}
.theme-control{position:relative;flex:none;margin:0;color:var(--muted)}
.theme-control summary{list-style:none;width:36px;height:36px;display:grid;place-items:center;border:1px solid var(--line);border-radius:50%;background:var(--panel);cursor:pointer}
.theme-control summary::-webkit-details-marker{display:none}
.theme-control summary:hover,.theme-control[open] summary{color:var(--ink);border-color:var(--accent)}
.theme-control svg{width:17px;height:17px;flex:none}
.theme-control summary svg{display:none}
:root[data-theme-pref="light"] .theme-control summary [data-for="light"],:root[data-theme-pref="dark"] .theme-control summary [data-for="dark"],:root[data-theme-pref="auto"] .theme-control summary [data-for="auto"]{display:block}
.theme-menu{position:absolute;right:0;top:calc(100% + 8px);z-index:140;min-width:172px;padding:6px;border:1px solid var(--line);border-radius:14px;background:var(--panel);box-shadow:0 8px 28px #0003}
.theme-menu button{display:flex;align-items:center;gap:10px;width:100%;padding:8px 10px;border:0;border-radius:9px;background:transparent;color:var(--muted);font:600 14px/1.5 Inter,system-ui,sans-serif;text-align:left;cursor:pointer}
.theme-menu button:hover,.theme-menu button:focus-visible{background:color-mix(in srgb,var(--accent) 14%,transparent);color:var(--ink)}
.theme-menu button[aria-pressed="true"]{color:var(--accent)}
.theme-check{margin-left:auto;visibility:hidden}.theme-menu button[aria-pressed="true"] .theme-check{visibility:visible}
.theme-control summary:focus-visible,.theme-menu button:focus-visible{outline:2px solid var(--accent);outline-offset:3px}