/* Shared layout utilities for all themes */
:root {
  --at-color-primary-50: var(--at-primary-50, var(--at2-primary-50, var(--at3-primary-50, #eff6ff)));
  --at-color-primary-500: var(--at-primary-500, var(--at2-primary-500, var(--at3-primary-500, #3b82f6)));
  --at-color-primary-700: var(--at-primary-700, var(--at2-primary-700, var(--at3-primary-700, #1d4ed8)));
  --at-color-primary-800: var(--at-primary-800, var(--at2-primary-800, var(--at3-primary-800, #1e40af)));
  --at-color-gray-50: var(--at-gray-50, var(--at2-gray-50, var(--at3-gray-50, #f8fafc)));
  --at-color-gray-100: var(--at-gray-100, var(--at2-gray-100, var(--at3-gray-100, #f1f5f9)));
  --at-color-gray-300: var(--at-gray-300, var(--at2-gray-300, var(--at3-gray-300, #d1d5db)));
  --at-color-gray-500: var(--at-gray-500, var(--at2-gray-500, var(--at3-gray-500, #6b7280)));
  --at-color-gray-600: var(--at-gray-600, var(--at2-gray-600, var(--at3-gray-600, #475569)));
  --at-color-gray-700: var(--at-gray-700, var(--at2-gray-700, var(--at3-gray-700, #374151)));
  --at-color-gray-900: var(--at-gray-900, var(--at2-gray-900, var(--at3-gray-900, #0f172a)));

  --at-space-2: var(--at-spacing-2, var(--at2-spacing-2, var(--at3-spacing-2, 0.5rem)));
  --at-space-3: var(--at-spacing-3, var(--at2-spacing-3, var(--at3-spacing-3, 0.75rem)));
  --at-space-4: var(--at-spacing-4, var(--at2-spacing-4, var(--at3-spacing-4, 1rem)));
  --at-space-5: var(--at-spacing-5, var(--at2-spacing-5, var(--at3-spacing-5, 1.25rem)));
  --at-space-6: var(--at-spacing-6, var(--at2-spacing-6, var(--at3-spacing-6, 1.5rem)));
  --at-space-8: var(--at-spacing-8, var(--at2-spacing-8, var(--at3-spacing-8, 2rem)));
  --at-space-10: var(--at-spacing-10, var(--at2-spacing-10, var(--at3-spacing-10, 2.5rem)));
  --at-space-12: var(--at-spacing-12, var(--at2-spacing-12, var(--at3-spacing-12, 3rem)));
  --at-space-16: var(--at-spacing-16, var(--at2-spacing-16, var(--at3-spacing-16, 4rem)));

  --at-radius: var(--at-radius, var(--at2-radius, var(--at3-radius, 0.5rem)));
  --at-radius-lg: var(--at-radius-lg, var(--at2-radius-lg, var(--at3-radius-lg, 1rem)));
  --at-radius-xl: var(--at-radius-xl, var(--at2-radius-xl, var(--at3-radius-xl, 1.5rem)));
}

.at-section-muted {
  background: var(--at-color-gray-100);
}

.at-text-muted {
  color: var(--at-color-gray-600);
}

.at-article-lede {
  color: var(--at-color-gray-600);
  font-size: 1.125rem;
}

.at-card-center {
  text-align: center;
}

.at-card-icon-center {
  margin: 0 auto var(--at-space-5);
}

.at-card-text {
  margin-bottom: var(--at-space-4);
}

.at-link-block {
  display: block;
  font-size: 1.25rem;
  font-weight: 600;
}

.at-link-block-spaced {
  margin-bottom: var(--at-space-2);
}

.at-link-inline {
  display: inline-flex;
  align-items: center;
  gap: var(--at-space-2);
}

.at-card-link {
  text-decoration: none;
  color: inherit;
}

.at-note-small {
  font-size: 0.875rem;
  color: var(--at-color-gray-500);
}

.at-footer-note {
  margin-top: 0.5rem;
  opacity: 0.7;
}

.at-hero-media {
  margin-top: var(--at-space-10);
  display: flex;
  justify-content: center;
}

.at-hero-media picture,
.at-hero-media img {
  width: min(960px, 100%);
  border-radius: var(--at-radius-xl);
  box-shadow: 0 20px 45px rgba(15, 23, 42, 0.2);
}

.at-article-media {
  margin: var(--at-space-8) 0 var(--at-space-10);
}

.at-article-media picture,
.at-article-media img {
  width: 100%;
  border-radius: var(--at-radius-lg);
  box-shadow: 0 16px 32px rgba(15, 23, 42, 0.12);
}

.at-article-sublist {
  margin-top: 0.35rem;
  margin-left: 1.25rem;
}

.at-article-callout {
  margin-top: 2rem;
  padding: 1.5rem;
  background: var(--at-color-primary-50);
  border-radius: 0.75rem;
  border-left: 4px solid var(--at-color-primary-500);
}

.at-info-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 1.5rem;
  margin: 1.5rem 0;
}

.at-info-card {
  padding: 1.5rem;
  background: var(--at-color-gray-50);
  border-radius: 0.75rem;
  border: 1px solid var(--at-color-gray-300);
}

.at-info-title {
  color: var(--at-color-primary-700);
  margin-bottom: 0.75rem;
}

.at-info-list {
  margin: 0;
  padding-left: 1.25rem;
}

.at-icon-14 { width: 14px; height: 14px; }
.at-icon-16 { width: 16px; height: 16px; }
.at-icon-18 { width: 18px; height: 18px; }
.at-icon-20 { width: 20px; height: 20px; }
.at-icon-28 { width: 28px; height: 28px; }

.at-empty-note {
  text-align: center;
  color: var(--at-color-gray-500);
  padding: 2rem;
}

.at-alert {
  padding: 1rem;
  border-radius: 0.5rem;
  border: 1px solid;
}

.at-alert-wrap {
  max-width: 900px;
  margin: 0 auto;
  padding: 1rem;
}

.at-alert-success {
  background: #d1fae5;
  border-color: #10b981;
  color: #065f46;
}

.at-form-title {
  margin-bottom: 1.5rem;
  font-size: 1.25rem;
}

.at-comment-avatar.at-avatar-1 { background: linear-gradient(135deg, hsl(40, 70%, 50%), hsl(70, 70%, 45%)); }
.at-comment-avatar.at-avatar-2 { background: linear-gradient(135deg, hsl(80, 70%, 50%), hsl(110, 70%, 45%)); }
.at-comment-avatar.at-avatar-3 { background: linear-gradient(135deg, hsl(120, 70%, 50%), hsl(150, 70%, 45%)); }
.at-comment-avatar.at-avatar-4 { background: linear-gradient(135deg, hsl(160, 70%, 50%), hsl(190, 70%, 45%)); }
.at-comment-avatar.at-avatar-5 { background: linear-gradient(135deg, hsl(200, 70%, 50%), hsl(230, 70%, 45%)); }
.at-comment-avatar.at-avatar-6 { background: linear-gradient(135deg, hsl(240, 70%, 50%), hsl(270, 70%, 45%)); }
.at-comment-avatar.at-avatar-7 { background: linear-gradient(135deg, hsl(280, 70%, 50%), hsl(310, 70%, 45%)); }