:root{font-family:Inter,system-ui,sans-serif;color-scheme:dark}
*{box-sizing:border-box}
body{margin:0;background:linear-gradient(145deg,#08111f,#111827 55%,#1f2937);color:#fff;min-height:100vh}
.app{width:min(1180px,94vw);margin:auto;padding:5vh 0;display:grid;gap:24px}
.hero{max-width:920px}.brand{font-weight:900;letter-spacing:.25em;opacity:.72}
h1{font-size:clamp(3rem,7vw,7rem);line-height:.92;margin:.18em 0}.hero p{font-size:clamp(1.1rem,2vw,1.5rem);color:#cbd5e1}
.card{background:rgba(15,23,42,.9);border:1px solid #334155;border-radius:28px;padding:26px;display:grid;gap:16px}
.row{display:flex;gap:18px;align-items:end;justify-content:space-between}.row h2{margin:0}
.search{max-width:360px}
input,select,button{font-size:1.08rem;padding:16px 18px;border-radius:16px;border:1px solid #334155}
input,select{background:#0f172a;color:#fff}button{background:#fff;color:#0f172a;font-weight:900;cursor:pointer}
button:disabled{opacity:.45;cursor:not-allowed}
.chips{display:flex;gap:10px;flex-wrap:wrap}.chip{background:#172033;color:#e2e8f0;border:1px solid #334155;padding:10px 14px}.chip.active{background:#fff;color:#0f172a}
.channels{display:grid;grid-template-columns:repeat(auto-fit,minmax(210px,1fr));gap:12px}
.channel{display:flex;align-items:center;gap:12px;text-align:left;background:#111827;color:#fff;border:1px solid #334155}
.channel.selected{outline:3px solid rgba(255,255,255,.7)}
.logo{width:44px;height:44px;border-radius:12px;background:#fff;color:#0f172a;display:grid;place-items:center;font-weight:900;flex:none}
.channel span:last-child{display:grid;gap:3px}.channel small{color:#94a3b8}
details{border-top:1px solid #334155;padding-top:14px}summary{cursor:pointer;color:#cbd5e1;margin-bottom:12px}
.controls{align-content:start}.selected{font-weight:800}.pipeline{display:grid;gap:8px}.pipeline-row{display:flex;justify-content:space-between;gap:12px;padding:10px 12px;border-radius:12px;background:#111827}.pipeline-row strong{font-size:.82rem;letter-spacing:.04em}.hidden{display:none}
.player-wrap{position:relative;width:100%;aspect-ratio:16/9;border-radius:20px;overflow:hidden;background:#000}.player-wrap iframe{position:absolute;inset:0;width:100%;height:100%;border:0}#qr{width:min(260px,70vw);background:#fff;padding:12px;border-radius:18px}.muted{color:#cbd5e1;margin:0}
@media(min-width:900px){.app{grid-template-columns:1.3fr .7fr}.hero{grid-column:1/-1}.channel-card{grid-column:1}.controls{grid-column:2}.session{grid-column:1/-1}}
@media(max-width:700px){.row{display:grid}.search{max-width:none}}