:root{--bg:#fafafa;--fg:#1a1a1a;--muted:#666;--accent:#2463eb}@media (prefers-color-scheme:dark){:root{--bg:#111;--fg:#eee;--muted:#999;--accent:#7aa2ff}}*{box-sizing:border-box}body{background:var(--bg);min-height:100vh;color:var(--fg);place-items:center;margin:0;font-family:system-ui,sans-serif;display:grid}main{text-align:center;padding:16px}nav a{color:var(--accent);margin:0 8px}nav a[aria-current=true]{font-weight:700;text-decoration:none}p{color:var(--muted)}.card{width:min(420px,100%)}.stack{flex-direction:column;gap:10px;margin:16px 0;display:flex}button,.button{font:inherit;border:1px solid var(--muted);color:var(--fg);cursor:pointer;background:0 0;border-radius:8px;padding:10px 16px;text-decoration:none;display:inline-block}button.primary,.button.primary{background:var(--accent);border-color:var(--accent);color:var(--bg)}button:disabled{opacity:.6;cursor:default}.lang{justify-content:center;gap:8px;margin-top:24px;display:flex}.lang button{color:var(--accent);border:none;padding:4px 10px}.lang button[aria-pressed=true]{font-weight:700}.passkeys{margin:0;padding:0;list-style:none}.passkeys li{justify-content:space-between;align-items:center;padding:6px 0;display:flex}.hint{font-size:.9em}.error{color:#d33}