/* Page shell, containers, grid utilities. */

.container {
  width: 100%;
  max-width: var(--container-max);
  margin-inline: auto;
  padding-inline: var(--container-pad);
}

.container--narrow {
  max-width: 820px;
}

.section {
  padding-block: clamp(3rem, 6vw, 5.5rem);
}

/* Performance: skip rendering offscreen sections when supported. */
@supports (content-visibility: auto) {
  .section,
  .site-footer {
    content-visibility: auto;
    contain-intrinsic-size: 1px 900px;
  }
}

.section--tight {
  padding-block: clamp(2rem, 4vw, 3.5rem);
}

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

.section__head {
  display: grid;
  gap: var(--space-3);
  max-width: 720px;
  margin-bottom: var(--space-7);
}

.section__eyebrow {
  font-family: var(--font-sans);
  font-size: var(--fs-50);
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--accent);
  font-weight: 600;
}

.stack {
  display: grid;
  gap: var(--space-5);
}

.cluster {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-4);
  align-items: center;
}

.grid {
  display: grid;
  gap: var(--space-5);
}

.grid--3 {
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
}

.grid--4 {
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
}

main {
  display: block;
  min-height: 60vh;
}

.page-hero {
  padding-block: clamp(4rem, 8vw, 7rem) clamp(2rem, 4vw, 3.5rem);
  background: linear-gradient(180deg, var(--surface-alt), transparent 80%);
}

.page-hero__lede {
  font-size: var(--fs-300);
  color: var(--text-secondary);
  max-width: 60ch;
}