:root {
  --bg: #f8fafc;
  --panel: #ffffff;
  --border: #e2e8f0;
  --text: #0f172a;
  --muted: #64748b;
  --accent: #111827;
}

* { box-sizing: border-box; }
body {
  margin: 0;
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  background: var(--bg);
  color: var(--text);
}

a { color: inherit; }
.container {
  width: min(1200px, calc(100% - 2rem));
  margin: 0 auto;
}
.topbar {
  background: #fff;
  border-bottom: 1px solid var(--border);
  position: sticky;
  top: 0;
  z-index: 50;
}
.topbar-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  min-height: 64px;
}
.brand {
  font-weight: 700;
  text-decoration: none;
}
.nav {
  display: flex;
  gap: 1rem;
  flex-wrap: wrap;
}
.nav a {
  text-decoration: none;
  color: var(--muted);
}
.nav a:hover { color: var(--text); }
.page {
  padding: 1.5rem 0 3rem;
}
.hero {
  margin-bottom: 1rem;
}
.hero h1 {
  margin: 0;
  font-size: 2rem;
}
.hero p {
  margin: 0.5rem 0 0;
  color: var(--muted);
}
.card {
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 18px;
  padding: 1rem;
  box-shadow: 0 1px 2px rgba(15, 23, 42, 0.04);
}
.card + .card,
.card + section,
section + .card,
section + section {
  margin-top: 1rem;
}
.card-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 1rem;
  margin-bottom: 0.75rem;
}
.stats-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
  gap: 1rem;
}
.stat span {
  display: block;
  color: var(--muted);
  font-size: 0.9rem;
}
.stat strong {
  display: block;
  margin-top: 0.4rem;
  font-size: 1.8rem;
}
.two-col {
  display: grid;
  grid-template-columns: 2fr 1fr;
  gap: 1rem;
}
.grid-detail {
  display: grid;
  grid-template-columns: 1fr 1.4fr;
  gap: 1rem;
}
.table-wrap {
  overflow-x: auto;
}
table {
  width: 100%;
  border-collapse: collapse;
}
th, td {
  text-align: left;
  padding: 0.75rem;
  border-bottom: 1px solid var(--border);
  vertical-align: top;
}
th {
  color: var(--muted);
  font-weight: 600;
  font-size: 0.9rem;
}
.badge {
  display: inline-block;
  padding: 0.25rem 0.55rem;
  border: 1px solid var(--border);
  border-radius: 999px;
  background: #f8fafc;
  font-size: 0.8rem;
}
.filters {
  display: grid;
  grid-template-columns: 2fr repeat(3, 1fr) auto;
  gap: 0.75rem;
}
.filters input,
.filters select,
.filters button {
  width: 100%;
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 0.75rem 0.9rem;
  background: #fff;
}
.filters button {
  cursor: pointer;
  background: var(--accent);
  color: #fff;
}
.list {
  list-style: none;
  padding: 0;
  margin: 0;
}
.list li {
  display: flex;
  justify-content: space-between;
  gap: 1rem;
  padding: 0.75rem 0;
  border-bottom: 1px solid var(--border);
}
.list li:last-child { border-bottom: 0; }
.audit li {
  display: block;
}
.meta-grid {
  display: grid;
  grid-template-columns: 160px 1fr;
  gap: 0.75rem 1rem;
  margin: 0;
}
.meta-grid dt {
  font-weight: 600;
  color: var(--muted);
}
.meta-grid dd { margin: 0; }
.variant {
  padding: 1rem 0;
  border-top: 1px solid var(--border);
}
.variant:first-of-type { border-top: 0; padding-top: 0; }
.variant-header {
  display: flex;
  justify-content: space-between;
  gap: 1rem;
  align-items: center;
}
.prewrap {
  white-space: pre-wrap;
  word-break: break-word;
  background: #f8fafc;
  padding: 0.75rem;
  border-radius: 12px;
  border: 1px solid var(--border);
}
.muted { color: var(--muted); }
.tiny { font-size: 0.85rem; }
.mono {
  font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, "Liberation Mono", monospace;
  word-break: break-all;
}
@media (max-width: 900px) {
  .two-col,
  .grid-detail,
  .filters {
    grid-template-columns: 1fr;
  }
  .topbar-inner {
    flex-direction: column;
    align-items: flex-start;
    padding: 0.75rem 0;
  }
}