:root{--bg:#fff;--fg:#1a1a2e;--muted:#5c5c70;--line:#e3e3ea;--accent:#2b2d7c;--err:#b3261e}
@media (prefers-color-scheme:dark){:root{--bg:#121218;--fg:#ececf2;--muted:#a3a3b5;--line:#2c2c38;--accent:#8f93ff;--err:#ff8a80}}
*{box-sizing:border-box}body{margin:0;background:var(--bg);color:var(--fg);font:16px/1.55 system-ui,-apple-system,Segoe UI,sans-serif}
main{max-width:680px;margin:0 auto;padding:32px 16px 64px}h1{font-size:1.6rem;margin:0 0 8px}h2{font-size:1.1rem;margin:28px 0 8px}
.muted{color:var(--muted)}a{color:var(--accent)}.btn{display:inline-block;background:var(--accent);color:#fff;border:0;border-radius:8px;padding:12px 20px;font-size:1rem;cursor:pointer;text-decoration:none}
.btn[disabled]{opacity:.45;cursor:not-allowed}.btn.secondary{background:transparent;color:var(--accent);border:1px solid var(--line)}
.card{border:1px solid var(--line);border-radius:12px;padding:16px;margin:16px 0}.row{display:flex;gap:12px;align-items:center}
.avatar{width:48px;height:48px;border-radius:50%}label{display:block;margin:12px 0 4px;font-weight:600}
input[type=text],textarea,select{width:100%;padding:10px;border:1px solid var(--line);border-radius:8px;background:var(--bg);color:var(--fg);font:inherit}
.check{display:flex;gap:8px;align-items:center;font-weight:400;margin:6px 0}.err{color:var(--err)}video{width:100%;max-height:420px;border-radius:8px;background:#000}
footer{margin-top:48px;font-size:.9rem}footer a{margin-right:16px}