:root {
  --bg: #f7faf7;
  --card: #ffffff;
  --text: #132018;
  --muted: #4b5b52;
  --line: #dfe7e1;
  --accent: #2e7d32;
  --danger: #b00020;
  --mono: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, "Liberation Mono", "Courier New", monospace;
  --sans: ui-sans-serif, -apple-system, BlinkMacSystemFont, "Segoe UI", "Hiragino Sans", "Noto Sans JP", "Yu Gothic", sans-serif;
}

* { box-sizing: border-box; }
html, body { height: 100%; }
body {
  margin: 0;
  font-family: var(--sans);
  color: var(--text);
  background: radial-gradient(900px 420px at 20% 0%, #e9f6ea 0%, var(--bg) 60%) fixed;
}

.wrap {
  max-width: 920px;
  margin: 0 auto;
  padding: 22px 16px 40px;
}

header {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 14px;
  margin-bottom: 14px;
}

header h1 {
  margin: 0;
  font-size: 22px;
  letter-spacing: 0.2px;
}

header .badge {
  font-family: var(--mono);
  font-size: 12px;
  color: var(--muted);
  border: 1px solid var(--line);
  background: rgba(255, 255, 255, 0.8);
  padding: 6px 10px;
  border-radius: 999px;
}

.card {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: 14px;
  padding: 16px 16px;
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.05);
}

.grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 12px;
}

@media (min-width: 720px) {
  .grid { grid-template-columns: 1fr 1fr; }
}

a {
  color: var(--accent);
  text-decoration: none;
}
a:hover { text-decoration: underline; }

.muted { color: var(--muted); }
.danger { color: var(--danger); }

h2 {
  margin: 18px 0 8px;
  font-size: 16px;
}

ul { margin: 8px 0; padding-left: 20px; }
li { margin: 6px 0; }

.kv { font-family: var(--mono); font-size: 12px; color: var(--muted); }
.nav {
  display: flex;
  flex-wrap: wrap;
  gap: 10px 14px;
  margin-top: 12px;
}

footer {
  margin-top: 16px;
  color: var(--muted);
  font-size: 12px;
}

code {
  font-family: var(--mono);
  font-size: 0.95em;
  background: #f3f6f4;
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 2px 6px;
}