.nav-shell,
.site-main,
.site-footer-inner,
.container-wide {
  width: min(var(--container-wide), calc(100% - (var(--viewport-gutter) * 2)));
  margin-inline: auto;
}

.container-reading {
  width: min(var(--container-reading), 100%);
}

.full-bleed-media {
  width: 100vw;
  max-width: none;
  margin-inline: calc(50% - 50vw);
}

.site-header {
  position: sticky;
  top: 0;
  z-index: var(--z-header);
  background: var(--color-header);
  color: var(--color-surface);
  border-bottom: 1px solid var(--color-white-12);
}

.nav-shell {
  min-height: var(--header-height);
  display: flex;
  align-items: center;
  gap: 14px;
}

.main-nav {
  display: flex;
  align-items: center;
  gap: 2px;
  margin-left: auto;
}

.section {
  padding: var(--space-section) 0;
}

.section-tight {
  padding: var(--space-section-tight) 0;
}

.section-header {
  max-width: var(--container-reading);
  margin-bottom: 28px;
}

.grid {
  display: grid;
  gap: 20px;
}

.grid-3 {
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.grid-2 {
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.site-footer {
  margin-top: 30px;
  background: var(--color-ink);
  color: var(--color-hero-text);
}

.site-footer-inner {
  display: flex;
  justify-content: space-between;
  gap: 28px;
  flex-wrap: wrap;
  padding: var(--space-section-tight) 0;
}

.footer-main {
  display: grid;
  grid-template-columns: minmax(0, 1.4fr) repeat(2, minmax(0, 1fr));
  align-items: start;
  gap: var(--space-6);
}

.footer-bottom {
  padding: var(--space-3) 0;
  border-top: 1px solid var(--color-white-12);
  color: var(--color-footer-muted);
  font-size: 13px;
}

@media (max-width: 900px) {
  .nav-shell {
    position: relative;
    width: calc(100% - (var(--viewport-gutter-mobile) * 2));
    gap: 10px;
  }

  .site-main {
    width: calc(100% - (var(--viewport-gutter-mobile) * 2));
    min-width: 0;
  }

  .grid,
  .card {
    min-width: 0;
  }

  .grid-3,
  .grid-2 {
    grid-template-columns: 1fr;
  }

  .section {
    padding: var(--space-section-mobile) 0;
  }

  .footer-main {
    grid-template-columns: 1fr;
    gap: var(--space-5);
  }
}