:root { color-scheme: dark; }
* { box-sizing: border-box; }
body { margin: 0; background: #120d1f; color: #f4f0ff; font: 16px/1.45 system-ui, -apple-system, sans-serif; }
main { max-width: 480px; margin: 0 auto; padding: 20px 16px 48px; }
h1 { margin: 0 0 4px; font-size: 24px; }
h2 { margin: 0 0 10px; font-size: 17px; }
section { margin-top: 18px; padding: 14px; border-radius: 14px; background: #1d1630; }
.note { margin: 0; color: #e8c46a; }
.muted { color: #b9add6; }
.small { font-size: 13px; }
dl { display: grid; grid-template-columns: auto 1fr; gap: 4px 12px; margin: 0; font-size: 14px; }
dt { color: #b9add6; }
dd { margin: 0; word-break: break-word; }
.yes { color: #7ee2a0; }
.no { color: #ff8f8f; }
#express { margin: 12px 0; min-height: 44px; }
#result { margin: 0; font-weight: 600; }
.button { display: block; width: 100%; padding: 12px; border: 0; border-radius: 10px; background: #8b5cf6;
  color: #fff; font: inherit; font-weight: 600; text-align: center; text-decoration: none; }
pre { margin: 12px 0 0; padding: 10px; border-radius: 8px; background: #0c0816; font-size: 12px;
  white-space: pre-wrap; word-break: break-word; }