:root{--lightningcss-light: ;--lightningcss-dark:initial;color-scheme:dark;--bg:#111;--card:#1c1c1e;--border:#2c2c2e;--fg:#eee;--muted:#8e8e93;--accent:#4ec9b0;--danger:#ff6b6b}*{box-sizing:border-box}body{background:var(--bg);min-height:100vh;color:var(--fg);margin:0;font-family:system-ui,-apple-system,PingFang SC,Microsoft YaHei,sans-serif}h1{letter-spacing:.05em;margin:0 0 1rem;font-weight:600}h2{margin:0 0 .25rem;font-size:1.1rem}p{margin:.25rem 0}.muted{color:var(--muted)}.error{color:var(--danger);font-size:.9rem}.center{place-items:center;min-height:100vh;padding:1rem;display:grid}.card{background:var(--card);border:1px solid var(--border);border-radius:12px;padding:1.5rem}form.card{flex-direction:column;gap:.9rem;width:min(360px,100%);display:flex}label{color:var(--muted);flex-direction:column;gap:.35rem;font-size:.9rem;display:flex}input{font:inherit;color:var(--fg);background:var(--bg);border:1px solid var(--border);border-radius:8px;padding:.6rem .75rem}input:focus{outline:2px solid var(--accent);outline-offset:-1px}button{font:inherit;cursor:pointer;color:#000;background:var(--accent);border:0;border-radius:8px;padding:.65rem 1rem}button:disabled{opacity:.5;cursor:not-allowed}button.link{color:var(--muted);background:0 0;padding:0;text-decoration:underline}.lobby{max-width:900px;margin:0 auto;padding:2rem 1rem}.lobby header{justify-content:space-between;align-items:baseline;gap:1rem;display:flex}.who{align-items:center;gap:.75rem;display:flex}.badge{color:var(--accent);border:1px solid var(--accent);border-radius:999px;padding:.1rem .5rem;font-size:.75rem}.rooms{grid-template-columns:repeat(auto-fill,minmax(240px,1fr));gap:1rem;margin-top:1.5rem;display:grid}.room{flex-direction:column;gap:.5rem;display:flex}.room p{color:var(--muted);flex:1}