:root {
  --stat-font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Noto Sans SC", sans-serif;
}

body {
  font-family: var(--stat-font-family);
}

/* Code block styling */
.md-typeset pre > code {
  font-size: 0.8rem;
}

/* Tabbed code blocks */
.md-typeset .tabbed-set {
  margin: 1em 0;
}

/* ============================================================
   Card grid — quick links
   ============================================================ */
.card-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 1rem;
  margin: 1.5em 0;
}

.card-grid .card {
  border: 1px solid var(--md-default-fg-color--lightest);
  border-radius: 10px;
  padding: 1.2rem 1.4rem;
  transition: box-shadow 0.2s ease, transform 0.2s ease;
  display: block;
  color: inherit;
}

.card-grid .card:hover {
  box-shadow: 0 6px 16px rgba(0,0,0,0.1);
  transform: translateY(-3px);
  border-color: var(--md-primary-fg-color);
}

.card-grid .card h3 {
  margin-top: 0;
  margin-bottom: 0.5rem;
  font-size: 1.05rem;
}

.card-grid .card p {
  margin: 0;
  font-size: 0.85rem;
  color: var(--md-default-fg-color--light);
  line-height: 1.6;
}

/* ============================================================
   Stat cards — top metrics
   ============================================================ */
.stat-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1rem;
  margin: 2em 0;
}

.stat-grid .stat-card {
  background: var(--md-primary-fg-color--transparent);
  border: 1px solid var(--md-default-fg-color--lightest);
  border-radius: 10px;
  padding: 1.2rem 1rem;
  text-align: center;
  transition: box-shadow 0.2s ease, transform 0.2s ease, border-color 0.2s ease;
}

.stat-grid .stat-card:hover {
  box-shadow: 0 6px 16px rgba(0,0,0,0.1);
  transform: translateY(-3px);
  border-color: var(--md-primary-fg-color);
}

.stat-grid .stat-card .stat-number {
  font-size: 2.4rem;
  font-weight: 700;
  color: var(--md-primary-fg-color);
  line-height: 1.2;
}

.stat-grid .stat-card .stat-label {
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--md-default-fg-color);
  margin-top: 0.2rem;
}

.stat-grid .stat-card .stat-desc {
  font-size: 0.75rem;
  color: var(--md-default-fg-color--light);
  margin-top: 0.15rem;
}

/* Responsive: 2x2 on mobile */
@media (max-width: 540px) {
  .stat-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .card-grid {
    grid-template-columns: 1fr;
  }
}