:root{--bg:#f6f7f9;--surface:#ffffff;--text:#1f2a37;--muted:#6b7280;--border:#e5e7eb;--accent:#1f2a37;--accent-text:#ffffff}@media (prefers-color-scheme:dark){:root{--bg:#111827;--surface:#1f2937;--text:#f3f4f6;--muted:#9ca3af;--border:#374151;--accent:#f3f4f6;--accent-text:#111827}}*{box-sizing:border-box}body,html{margin:0;min-height:100%;background:var(--bg);color:var(--text);font-family:system-ui,-apple-system,Segoe UI,Roboto,sans-serif;-webkit-font-smoothing:antialiased}.page{min-height:100dvh;display:grid;place-items:center;padding:max(16px,env(safe-area-inset-top)) 16px max(16px,env(safe-area-inset-bottom))}.card{width:100%;max-width:360px;padding:32px 24px;background:var(--surface);border:1px solid var(--border);border-radius:16px;text-align:center}.brand{font-size:28px;font-weight:800;letter-spacing:-.02em}.tagline{margin:8px 0 24px;color:var(--muted)}.button{width:100%;padding:12px 16px;border:0;border-radius:12px;background:var(--accent);color:var(--accent-text);font:inherit;font-weight:600;cursor:pointer}