/* ============================================================
   LAYOUT — Sekolah Setara Nusantara
   Frame, grid, sections, containers
   ============================================================ */

/* --- Page frame --- */
.page-frame {
  width: 100%;
  max-width: calc(var(--max-width) + var(--gutter) * 2);
  margin-inline: auto;
  padding-inline: var(--gutter);
}

.prose-width {
  max-width: var(--max-prose);
}

/* --- Section rhythm --- */
.section {
  padding-block: var(--section-gap);
}

.section + .section {
  /* Section gap managed by padding, no extra margin */
}

/* --- Section with tinted ground --- */
.section--tinted {
  background-color: var(--color-ground-alt);
}

.section--accent {
  background-color: var(--color-accent);
  color: var(--color-white);
}

.section--accent h2,
.section--accent h3,
.section--accent h4 {
  color: var(--color-white);
}

.section--accent p {
  color: rgba(255, 255, 255, 0.88);
}

/* --- Columns --- */
.columns {
  display: grid;
  gap: var(--space-6);
}

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

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

.columns--4 {
  grid-template-columns: 1fr;
}

@media (min-width: 640px) {
  .columns--2 { grid-template-columns: 1fr 1fr; }
  .columns--4 { grid-template-columns: 1fr 1fr; }
}

@media (min-width: 900px) {
  .columns--3 { grid-template-columns: 1fr 1fr 1fr; }
  .columns--4 { grid-template-columns: 1fr 1fr 1fr 1fr; }
}

/* --- Split layout (text | graphic) --- */
.split {
  display: grid;
  gap: var(--space-8);
  align-items: start;
}

@media (min-width: 768px) {
  .split { grid-template-columns: 1fr 1fr; }
  .split--wide-left  { grid-template-columns: 3fr 2fr; }
  .split--wide-right { grid-template-columns: 2fr 3fr; }
}

/* --- Section header pattern --- */
.section-header {
  margin-bottom: var(--space-8);
}

.section-header h2 {
  margin-bottom: var(--space-3);
}

.section-header p {
  color: var(--color-ink-secondary);
  font-size: var(--text-lg);
  line-height: 1.55;
}