:root{--teal:#008e9e;--teal-dark:#006b77;--purple:#37096b;--ink:#252525;--muted:#66747a;--paper:#fff;--line:#d8e4e6}*{box-sizing:border-box}body{margin:0;background:#f8fbfb;color:var(--ink);font:16px/1.5 Tahoma,Arial,sans-serif}.site-header{height:84px;background:#282828;color:#fff;position:relative;z-index:2}.header-inner{height:100%;max-width:1170px;margin:auto;padding:0 30px;display:flex;align-items:center;justify-content:space-between}.brand{display:flex;align-items:center;gap:10px;color:#fff;text-decoration:none;font-size:1.65rem;font-weight:700;letter-spacing:.03em}.brand img{width:46px;height:30px;object-fit:contain}.home-link{color:#fff;text-decoration:none;font-weight:700;padding:12px 4px}.home-link:hover{color:#8adce3}.teal-sweep{height:92px;background:var(--teal);clip-path:ellipse(68% 100% at 50% 0);margin-top:-1px}.page{max-width:1170px;margin:0 auto;padding:24px 30px 80px}.entry-layout{min-height:570px;display:grid;grid-template-columns:minmax(0,1fr) minmax(300px,500px);gap:8vw;align-items:center}.hero-panel{max-width:590px;padding:25px 0 50px}.eyebrow{text-transform:uppercase;letter-spacing:.15em;color:var(--teal);font-size:.8rem;font-weight:700;margin:0 0 14px}.hero-panel h1,.show-heading h1{font-size:clamp(2.6rem,5vw,4.5rem);line-height:1.05;margin:.15em 0 .3em;font-weight:700}.intro{font-size:1.2rem;color:var(--muted);max-width:520px}.code-form{display:grid;gap:10px;margin-top:34px;max-width:520px}.code-form label{font-weight:700}.code-form input{font:inherit;font-size:1.1rem;padding:14px;border:1px solid #c1cdd0;border-radius:4px}.code-form button,.download{border:0;color:#fff;padding:16px 28px;border-radius:5px;font-weight:700;cursor:pointer;text-decoration:none;width:max-content}.code-form button{background:var(--teal);font:inherit;font-weight:700;min-width:150px;box-shadow:0 4px 0 var(--teal-dark)}.code-form button:hover{background:#007784}.alert{background:#fff0ef;color:#a33127;padding:13px 15px;border-radius:5px;font-weight:700}.identity-mark{justify-self:center;width:min(100%,390px);aspect-ratio:1;border-radius:50%;overflow:hidden;background:var(--purple);box-shadow:0 10px 25px #21054125}.identity-mark img{display:block;width:100%;height:100%;object-fit:cover}.show-heading{padding:26px 0 28px}.show-heading .show-title{font-size:1.35rem;color:var(--muted);margin:0;max-width:760px}.video-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(220px,1fr));gap:16px;margin:10px 0 30px}.video-grid h2{grid-column:1/-1}.video-card{background:#fff;border:1px solid var(--line);border-top:4px solid var(--teal);padding:20px;text-decoration:none;color:var(--ink);display:grid;gap:5px;box-shadow:0 4px 14px #13363b10}.video-card span{color:var(--muted);font-size:.9rem}.player-panel{background:#fff;border-top:5px solid var(--purple);padding:clamp(20px,4vw,40px);box-shadow:0 7px 25px #13363b18}.player-panel h2{font-size:clamp(1.5rem,3vw,2.2rem)}.player-frame{background:#111;aspect-ratio:16/9;width:100%;overflow:hidden}.player-panel video{display:block;width:100%;height:100%;object-fit:contain;background:#111}.player-panel audio{display:block;width:100%;margin-top:calc(50% - 20px)}.download{display:inline-block;margin-top:18px;background:var(--teal)}.download:hover{background:var(--teal-dark)}.chapter-section{margin-top:38px}.chapter-intro{color:var(--muted);margin-top:-8px}.chapter-gallery{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:22px;margin-top:20px}.chapter-card{min-width:0;position:relative;aspect-ratio:16/9;background:#293238;border:1px solid var(--line);border-radius:8px;overflow:hidden;box-shadow:0 6px 18px #13363b12}.chapter-media{position:absolute;inset:0;background:#293238;overflow:hidden}.chapter-media img{display:block;width:100%;height:100%;object-fit:cover}.chapter-artwork{background:var(--purple)}.chapter-artwork img{opacity:.72}.chapter-artwork>span:not(.chapter-badge){position:absolute;inset:0;display:grid;place-items:center;color:#fff;font-weight:700;letter-spacing:.08em}.chapter-placeholder{display:grid;place-items:center;height:100%;color:#d9eef0;font-weight:700}.chapter-badge{position:absolute;top:10px;left:10px;background:#282828d9;color:#fff;padding:3px 9px;border-radius:4px;font-size:.8rem;font-weight:700;z-index:1}.chapter-content{position:absolute;inset:0;padding:46px 14px 14px;display:flex;flex-direction:column;justify-content:flex-start;color:#fff;background:linear-gradient(to bottom,#111c 0%,#111a 27%,transparent 54%,#0008 100%)}.chapter-kicker{color:#b6edf1;font-size:.72rem;font-weight:700;text-transform:uppercase;letter-spacing:.08em;margin:0 0 4px}.chapter-content h3{margin:0;line-height:1.25;font-size:1.05rem;overflow-wrap:anywhere;display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden;text-shadow:0 1px 2px #000}.chapter-actions{display:flex;gap:8px;flex-wrap:wrap;margin-top:auto;padding-top:18px}.play-action,.download-action{display:inline-flex;align-items:center;justify-content:center;border-radius:4px;padding:8px 13px;font:inherit;font-weight:700;text-decoration:none;cursor:pointer}.play-action{border:0;background:var(--teal);color:#fff;box-shadow:0 2px 4px #0006}.play-action:hover{background:var(--teal-dark)}.download-action{border:1px solid #fff9;color:#fff;background:#282828b8}.download-action:hover{background:#282828e6}@media(max-width:980px){.chapter-gallery{grid-template-columns:repeat(2,minmax(0,1fr))}}@media(max-width:720px){.site-header{height:70px}.header-inner{padding:0 18px}.brand{font-size:1.15rem}.brand img{width:35px;height:25px}.home-link{font-size:.9rem}.teal-sweep{height:48px;clip-path:ellipse(85% 100% at 50% 0)}.page{padding:12px 18px 50px}.entry-layout{display:flex;flex-direction:column;align-items:stretch;gap:12px;min-height:0}.hero-panel{padding:28px 0 10px}.hero-panel h1{font-size:clamp(2.5rem,14vw,4rem)}.identity-mark{order:-1;align-self:center;width:min(58vw,250px);margin-top:12px}.show-heading h1{font-size:clamp(2.2rem,11vw,3.4rem)}.chapter-gallery{grid-template-columns:1fr}.chapter-actions{padding-top:14px}.player-panel{padding:20px 16px}}.player-area .download{display:flex;align-items:center;gap:8px;margin:14px 0 0 auto;padding:8px 13px;border:1px solid var(--teal);border-radius:4px;background:transparent;color:var(--teal);font-weight:700;box-shadow:none}.player-area .download::before{content:"⇩";font-size:1.1em;line-height:1}.player-area .download:hover{background:#008e9e12;color:var(--teal-dark);border-color:var(--teal-dark)}@media(max-width:720px){.player-area .download{width:100%;justify-content:center;margin-left:0}}
.chapter-actions{width:100%;justify-content:space-between}
.chapter-section{margin-top:20px}