:root{color-scheme:dark;--bg:#0b0d10;--card:#14181d;--border:#232a31;--fg:#e7edf3;--muted:#8a97a6;--accent:#3b82f6;--error:#f87171}*{box-sizing:border-box}body{margin:0;min-height:100vh;display:grid;place-items:center;background:var(--bg);color:var(--fg);font:15px/1.5 system-ui,-apple-system,Segoe UI,Roboto,sans-serif}.card{width:min(92vw,360px);padding:28px;background:var(--card);border:1px solid var(--border);border-radius:12px}h1{margin:0 0 4px;font-size:22px}.muted{margin:0 0 20px;color:var(--muted)}form{grid-gap:14px;gap:14px}form,label{display:grid}label{grid-gap:6px;gap:6px;font-size:13px;color:var(--muted)}input{background:#0e1216;border:1px solid var(--border);border-radius:8px;color:var(--fg)}button,input{padding:10px 12px;font-size:15px}button{margin-top:4px;background:var(--accent);color:#fff;border:0;border-radius:8px;cursor:pointer}button:hover{filter:brightness(1.08)}.error{margin:0 0 12px;padding:8px 10px;background:rgba(248,113,113,.12);border:1px solid rgba(248,113,113,.4);border-radius:8px;color:var(--error);font-size:13px}