:root{--bg: #fff;--fg: #111;--muted: #777;--line: #e4e4e7;--accent: #111;color-scheme:light dark}@media (prefers-color-scheme: dark){:root{--bg: #0b0b0c;--fg: #f4f4f5;--muted: #8b8b92;--line: #27272a;--accent: #f4f4f5}}*{box-sizing:border-box}body{margin:0;background:var(--bg);color:var(--fg);font:16px/1.5 system-ui,sans-serif}main{max-width:480px;margin:0 auto;padding:48px 20px}h1{font-size:22px;margin:0 0 4px}.muted{color:var(--muted);font-size:14px}.row{display:flex;gap:8px;margin-top:16px}.row.wrap{flex-wrap:wrap}input[type=url]{flex:1;padding:10px 12px;border:1px solid var(--line);border-radius:8px;background:transparent;color:inherit}button{padding:10px 14px;border-radius:8px;border:1px solid var(--accent);background:var(--accent);color:var(--bg);cursor:pointer;font:inherit}button.ghost{background:transparent;color:var(--fg);border-color:var(--line)}button:disabled{opacity:.4;cursor:not-allowed}.upload{display:inline-block;margin-top:12px;color:var(--muted);font-size:14px;text-decoration:underline;cursor:pointer}section{margin-top:24px}video,#out{width:100%;max-height:320px;object-fit:contain;border:1px solid var(--line);border-radius:12px}.trim{display:grid;gap:6px;margin:12px 0}.trim label{display:grid;grid-template-columns:48px 1fr;align-items:center;font-size:14px}