:root {
  color-scheme: light dark;
  --bg: #fffaf7;
  --fg: #3a2b33;
  --sub: #7a6670;
  --line: #ead8df;
  --accent: #c2477a;
  --ok: #2e7d4f;
  --ng: #b3261e;
}
@media (prefers-color-scheme: dark) {
  :root { --bg: #1d171a; --fg: #f3e9ee; --sub: #b8a6af; --line: #3d3036; --accent: #f08fb4; --ok: #7fd3a0; --ng: #ff8a80; }
}
* { box-sizing: border-box; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--fg);
  font: 16px/1.6 system-ui, -apple-system, "Hiragino Sans", "Noto Sans JP", sans-serif;
}
main { max-width: 560px; margin: 0 auto; padding: max(16px, env(safe-area-inset-top)) 16px 48px; }
h1 { font-size: 22px; margin: 8px 0; }
h2 { font-size: 17px; margin: 0 0 6px; }
section { border-top: 1px solid var(--line); padding: 14px 0; }
.lead, .note { color: var(--sub); font-size: 14px; }
button {
  display: block; width: 100%; min-height: 48px; margin: 8px 0 0;
  border: 0; border-radius: 12px; background: var(--accent); color: #fff;
  font-size: 16px; font-weight: 600;
}
button.sub { background: transparent; color: var(--accent); border: 1px solid var(--accent); }
button:disabled { opacity: .5; }
.big { font: 600 30px/1.2 ui-monospace, Menlo, Consolas, monospace; letter-spacing: .08em; margin: 4px 0; }
.verdict { font-weight: 700; min-height: 1.6em; }
.verdict.ok { color: var(--ok); }
.verdict.ng { color: var(--ng); }
dl { display: grid; grid-template-columns: max-content 1fr; gap: 2px 12px; font-size: 14px; margin: 0; }
dt { color: var(--sub); }
dd { margin: 0; word-break: break-all; }
ol { padding-left: 20px; font-size: 14px; }
code { font-family: ui-monospace, Menlo, Consolas, monospace; }