.container {
  max-width: var(--container-max);
  margin-inline: auto;
  padding-inline: var(--space-5);
}

.section {
  padding-block: var(--space-10);
}

.section--alt {
  background: var(--color-surface-50);
}

.section--tight {
  padding-block: var(--space-8);
}

/* Site header / primary nav */
.site-header {
  border-bottom: 1px solid var(--color-border);
  background: var(--color-surface-0);
  position: sticky;
  top: 0;
  z-index: 50;
}

.site-header__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-block: var(--space-3);
  gap: var(--space-4);
}

.brand {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  font-weight: 500;
  font-size: var(--text-lg);
  color: var(--color-ink-900);
  text-decoration: none;
}

.brand:hover {
  color: var(--color-ink-900);
}

.nav-toggle {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 44px;
  height: 44px;
  border-radius: var(--radius-md);
}

.nav-toggle:hover {
  background: var(--color-surface-100);
}

.primary-nav {
  display: none;
  position: absolute;
  top: 100%;
  left: 0;
  right: 0;
  background: var(--color-surface-0);
  border-bottom: 1px solid var(--color-border);
  flex-direction: column;
  padding: var(--space-4) var(--space-5);
  gap: var(--space-3);
}

.primary-nav.is-open {
  display: flex;
}

.primary-nav__link {
  color: var(--color-ink-900);
  text-decoration: none;
  font-weight: 400;
  padding: var(--space-2) 0;
}

.primary-nav__link[aria-current="page"] {
  color: var(--color-primary-600);
}

@media (min-width: 900px) {
  .nav-toggle {
    display: none;
  }

  .primary-nav {
    display: flex !important;
    position: static;
    flex-direction: row;
    align-items: center;
    border-bottom: none;
    padding: 0;
    gap: var(--space-6);
  }
}

/* Footer — intentionally a dark band on an otherwise white/light page,
   using dedicated contrast tokens so it never flips with the main theme. */
.site-footer {
  background: var(--color-contrast-bg);
  color: var(--color-contrast-text);
  padding-block: var(--space-10) var(--space-6);
}

.site-footer a {
  color: var(--color-contrast-text);
  text-decoration: none;
}

.site-footer a:hover {
  color: var(--color-contrast-heading);
}

.site-footer__grid {
  display: grid;
  gap: var(--space-6);
  grid-template-columns: 1fr;
}

.site-footer__legal {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-4);
  margin-top: var(--space-6);
  padding-top: var(--space-4);
  border-top: 1px solid rgba(255, 255, 255, 0.12);
  font-size: var(--text-sm);
}

@media (min-width: 900px) {
  .site-footer__grid {
    grid-template-columns: 2fr 1fr 1fr 1fr;
  }
}

/* Generic responsive grids */
.grid {
  display: grid;
  gap: var(--space-5);
  grid-template-columns: 1fr;
}

@media (min-width: 600px) {
  .grid--2 {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (min-width: 900px) {
  .grid--3 {
    grid-template-columns: repeat(3, 1fr);
  }
  .grid--5 {
    grid-template-columns: repeat(5, 1fr);
  }
}

.table-wrap {
  overflow-x: auto;
}

.breadcrumbs {
  font-size: var(--text-sm);
  margin-bottom: var(--space-5);
}

.breadcrumbs ol {
  display: flex;
  flex-wrap: wrap;
  list-style: none;
  padding-left: 0;
  gap: var(--space-1);
  color: var(--color-ink-400);
}