:root{color-scheme:light dark;--fg:#1a1a1a;--bg:#fafafa;--muted:#666;--line:#ddd;--accent:#1f4e79}@media (prefers-color-scheme:dark){:root{--fg:#ececec;--bg:#121212;--muted:#9a9a9a;--line:#333;--accent:#7fb3e6}}*{box-sizing:border-box}body{margin:0;font:16px/1.5 system-ui,-apple-system,Segoe UI,sans-serif;color:var(--fg);background:var(--bg)}main{max-width:480px;margin:10vh auto;padding:0 16px}h1{font-size:1.25rem;margin:0 0 1rem}form{grid-gap:12px;gap:12px}form,label{display:grid}label{grid-gap:4px;gap:4px;font-size:.9rem;color:var(--muted)}input{font:inherit;padding:8px 10px;border:1px solid var(--line);border-radius:6px;background:transparent;color:var(--fg)}button{font:inherit;padding:8px 12px;border:1px solid var(--accent);border-radius:6px;background:var(--accent);color:#fff;cursor:pointer}button.secondary{background:transparent;color:var(--accent)}.row{display:flex;gap:8px}.muted{color:var(--muted);font-size:.9rem}.notice{padding:10px 12px;border:1px solid var(--line);border-radius:6px}