/* ============================================================
   Layout — header, nav, page structure
   ============================================================ */

.site-header {
  background: var(--color-blue-deep);
  border-bottom: 3px solid var(--color-gold);
}

.site-header .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-top: var(--space-3);
  padding-bottom: var(--space-3);
}

.brand {
  display: flex;
  align-items: baseline;
  gap: var(--space-2);
  color: #fff;
  font-family: var(--font-display);
  font-size: var(--text-xl);
  font-weight: 700;
}
.brand span {
  color: var(--color-gold);
}

.main-nav {
  display: flex;
  gap: var(--space-5);
}
.main-nav a {
  color: #E8E3D5;
  font-size: var(--text-sm);
  font-weight: 500;
  letter-spacing: 0.02em;
}
.main-nav a:hover,
.main-nav a[aria-current="page"] {
  color: var(--color-gold);
  text-decoration: none;
}

.header-actions {
  display: flex;
  align-items: center;
  gap: var(--space-3);
}

.page-layout {
  display: grid;
  grid-template-columns: 240px 1fr;
  gap: var(--space-6);
  padding: var(--space-6) 0;
}

.page-layout--single {
  grid-template-columns: 1fr;
  max-width: 760px;
}

.sidebar {
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
}

.sidebar a {
  padding: var(--space-2) var(--space-3);
  border-radius: var(--radius-sm);
  color: var(--color-ink);
  font-size: var(--text-sm);
  font-weight: 500;
}
.sidebar a:hover,
.sidebar a[aria-current="page"] {
  background: var(--color-bg-elevated);
  text-decoration: none;
  color: var(--color-blue);
}

.site-footer {
  border-top: 1px solid var(--color-border);
  padding: var(--space-6) 0;
  margin-top: var(--space-8);
  color: var(--color-ink-muted);
  font-size: var(--text-sm);
}

@media (max-width: 800px) {
  .page-layout {
    grid-template-columns: 1fr;
  }
  .main-nav {
    display: none; /* replaced by a mobile menu in production build */
  }
}

@media (max-width: 1024px) and (min-width: 801px) {
  /* Tablet: keep sidebar but narrow it */
  .page-layout {
    grid-template-columns: 200px 1fr;
    gap: var(--space-4);
  }
}

@media (max-width: 480px) {
  :root {
    --text-3xl: 1.75rem;
    --text-2xl: 1.375rem;
  }
  .container { padding: 0 var(--space-3); }
  .site-header .container { flex-wrap: wrap; gap: var(--space-2); }
  .header-actions { order: 3; width: 100%; }
  .category-card { flex-direction: column; align-items: flex-start; gap: var(--space-1); }
  .category-card .count { margin-left: 0; }
}