:root{--brand:#e30613;--brand-dark:#a50410;--ink:#1c1c1c;--paper:#fff;--muted:#f4f2ef;--line:#ddd8d2}body{color:var(--ink);background:var(--muted);margin:0;font-family:system-ui,sans-serif}.band{background:var(--brand);color:#fff;padding:.6rem 1rem;font-weight:700}.card{background:var(--paper);border:1px solid var(--line);border-radius:8px;margin:.75rem 0;padding:1rem}button.primary{background:var(--brand);color:#fff;cursor:pointer;border:0;border-radius:6px;padding:.5rem 1rem}button.primary:disabled{opacity:.4}