/* Secondary pages: 404, legal, foundations. */

/* 404 */
.page-404 { min-height: 80vh; display: grid; place-items: center; padding-block: var(--spacing-900); }
.not-found { display: grid; justify-items: center; gap: var(--spacing-200); text-align: center; max-width: 680px; }
.empty-icon-lg {
  display: grid; place-items: center; width: 64px; height: 64px;
  border-radius: var(--radius-full);
  background-color: var(--surface-secondary);
  color: var(--icon-info);
  font-size: 2rem;
}
.not-found-actions { display: flex; flex-wrap: wrap; justify-content: center; gap: var(--spacing-100); margin-top: var(--spacing-75); }

/* Legal prose */
.prose { max-width: 728px; padding-top: var(--spacing-900); padding-bottom: var(--spacing-800); display: grid; gap: var(--spacing-200); }
.prose h2 { margin-top: var(--spacing-300); }

.prose > :first-child, .foundations > :first-child { margin-top: var(--spacing-700); }

/* Foundations */
.foundations { padding-top: var(--spacing-900); padding-bottom: var(--spacing-800); display: grid; gap: var(--spacing-700); }
.foundations .section-head { margin-bottom: 0; }
.foundations section { display: grid; gap: var(--spacing-300); }
.f-block { display: grid; gap: var(--spacing-300); }
.f-row { display: grid; gap: var(--spacing-75); }
.f-swatches { display: grid; grid-template-columns: repeat(auto-fill, minmax(96px, 1fr)); gap: var(--spacing-75); }
.f-swatch { display: grid; gap: var(--spacing-50); }
.f-chip { height: 48px; border-radius: var(--radius-8); border: 1px solid var(--border-primary); }

.f-system-group { display: grid; gap: var(--spacing-75); }
.f-system-head, .f-system-row { display: grid; grid-template-columns: 1.4fr 1fr 1fr; gap: var(--spacing-200); align-items: center; }
.f-system-row { padding-block: var(--spacing-75); position: relative; }
.f-system-row + .f-system-row::before { content: ''; position: absolute; top: 0; left: 0; right: 0; height: 1px; background-color: var(--border-primary); }
.f-mode { display: flex; align-items: center; gap: var(--spacing-100); padding: var(--spacing-75); border-radius: var(--radius-8); background-color: var(--surface-primary); border: 1px solid var(--border-primary); color: var(--text-secondary); }
.f-mode .f-chip { width: 32px; height: 32px; flex-shrink: 0; border-radius: var(--radius-4); }

.f-spacing-row { display: grid; grid-template-columns: 120px 48px 1fr; gap: var(--spacing-200); align-items: center; }
.f-bar { height: 16px; background-color: var(--surface-info); border-radius: var(--radius-2); }
.f-radius { grid-template-columns: repeat(auto-fill, minmax(112px, 1fr)); }
.f-radius-item { display: grid; gap: var(--spacing-75); }
.f-radius-shape { width: 80px; height: 80px; background-color: var(--surface-secondary); border: 1px solid var(--border-tertiary); }
.f-type-row { display: grid; grid-template-columns: 200px 1fr; gap: var(--spacing-200); align-items: baseline; padding-block: var(--spacing-75); }
.f-buttons { display: flex; flex-wrap: wrap; gap: var(--spacing-100); align-items: center; }

@media (max-width: 640px) {
  .prose > :first-child, .foundations > :first-child { margin-top: var(--spacing-400); }
  .f-system-head { display: none; }
  .f-system-row { grid-template-columns: 1fr; gap: var(--spacing-75); }
  .f-type-row { grid-template-columns: 1fr; gap: var(--spacing-50); }
  .f-spacing-row { grid-template-columns: 96px 40px 1fr; }
}