/* ============================================================
   layout.css — Container, grid, sections
   ============================================================ */

/* ---- Container ---- */
.container {
  width: 100%;
  max-width: var(--container);
  margin-inline: auto;
  padding-inline: var(--gutter);
  position: relative;
}

.container-text {
  max-width: var(--container-text);
  margin-inline: auto;
  padding-inline: var(--gutter);
  position: relative;
}

/* ---- Section base ---- */
.section {
  padding-block: var(--section-y);
  position: relative;
}

.section + .section {
  border-top: 1px solid var(--rule);
}

.section-eyebrow {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  margin-bottom: var(--space-5);
  color: var(--ink-mute);
}

.section-eyebrow::before {
  content: '';
  width: 24px;
  height: 1px;
  background: var(--ink-mute);
}

.section-title {
  font-size: var(--fs-2xl);
  line-height: var(--leading-tight);
  letter-spacing: var(--tracking-tight);
  font-weight: 600;
  color: var(--ink);
  max-width: 22ch;
  margin-bottom: var(--space-5);
}

.section-lead {
  font-size: var(--fs-md);
  color: var(--ink-soft);
  max-width: 60ch;
  margin-bottom: var(--space-8);
  line-height: var(--leading-relaxed);
}

.section-lead strong { color: var(--ink); font-weight: 600; }

/* ---- Grid utilities ---- */
.grid {
  display: grid;
  gap: var(--space-5);
}
.grid-2 { grid-template-columns: repeat(2, 1fr); }
.grid-3 { grid-template-columns: repeat(3, 1fr); }
.grid-4 { grid-template-columns: repeat(4, 1fr); }

@media (max-width: 880px) {
  .grid-3, .grid-4 { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 600px) {
  .grid-2, .grid-3, .grid-4 { grid-template-columns: 1fr; }
}

/* ---- Stack utility (vertical rhythm) ---- */
.stack-2 > * + * { margin-top: var(--space-2); }
.stack-3 > * + * { margin-top: var(--space-3); }
.stack-4 > * + * { margin-top: var(--space-4); }
.stack-5 > * + * { margin-top: var(--space-5); }
.stack-6 > * + * { margin-top: var(--space-6); }

/* ---- Cluster utility ---- */
.cluster {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-3);
  align-items: center;
}

/* ---- Hairline divider ---- */
.divider {
  height: 1px;
  background: var(--rule);
  border: 0;
}

.divider-strong {
  height: 1px;
  background: var(--ink);
  border: 0;
}

/* ---- Visually hidden (accessibility) ---- */
.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}