/*
 * Layout — containers, grid system, sections.
 */

/* ── Container ──────────────────────────────────────────────────── */

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

.container--narrow {
  max-width: var(--container-narrow);
}

.container--wide {
  max-width: var(--container-wide);
}

/* ── Section ────────────────────────────────────────────────────── */

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

.section--lg {
  padding-block: var(--section-gap-lg);
}

.section--sm {
  padding-block: var(--space-16);
}

/* Section themes */
.section--light {
  background-color: var(--color-off-white);
}

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

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

.section--prussian {
  background-color: var(--color-dark-bg-2);
  color: var(--color-white);
}

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

/* ── Grid ───────────────────────────────────────────────────────── */

.grid {
  display: grid;
  gap: var(--space-8);
}

.grid--2 { grid-template-columns: repeat(2, 1fr); }
.grid--3 { grid-template-columns: repeat(3, 1fr); }
.grid--4 { grid-template-columns: repeat(4, 1fr); }

.grid--auto {
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
}

/* Split layouts */
.split {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0;
}

.split--60-40 {
  grid-template-columns: 60fr 40fr;
}

.split--40-60 {
  grid-template-columns: 40fr 60fr;
}

/* ── Flex helpers ────────────────────────────────────────────────── */

.flex        { display: flex; }
.flex-center { display: flex; align-items: center; justify-content: center; }
.flex-between { display: flex; align-items: center; justify-content: space-between; }
.flex-col    { display: flex; flex-direction: column; }
.flex-wrap   { flex-wrap: wrap; }
.gap-4       { gap: var(--space-4); }
.gap-6       { gap: var(--space-6); }
.gap-8       { gap: var(--space-8); }

/* ── Responsive ─────────────────────────────────────────────────── */

@media (max-width: 1024px) {
  :root {
    --section-gap: var(--space-20);
    --section-gap-lg: var(--space-24);
  }

  .grid--4 { grid-template-columns: repeat(2, 1fr); }
  .grid--3 { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 768px) {
  :root {
    --section-gap: var(--space-16);
    --section-gap-lg: var(--space-20);
    --container-px: var(--space-6);
  }

  .grid--2,
  .grid--3,
  .grid--4 { grid-template-columns: 1fr; }

  .split,
  .split--60-40,
  .split--40-60 {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 480px) {
  :root {
    --container-px: var(--space-4);
  }
}

/* ── Overflow & scroll helpers ─────────────────────────────────── */

.overflow-hidden { overflow: hidden; }
.relative        { position: relative; }
.absolute        { position: absolute; }

/* ── Aspect ratios ──────────────────────────────────────────────── */

.ratio-16-9 { aspect-ratio: 16 / 9; }
.ratio-4-3  { aspect-ratio: 4 / 3; }
.ratio-1-1  { aspect-ratio: 1; }
.ratio-3-4  { aspect-ratio: 3 / 4; }

.ratio-16-9 > *,
.ratio-4-3 > *,
.ratio-1-1 > *,
.ratio-3-4 > * {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

/* ── Object fit ─────────────────────────────────────────────────── */

.img-cover {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}

/* ── Main content area ──────────────────────────────────────────── */

#main-content {
  min-height: 60vh;
  /* Scroll-reveal animations translate elements up to 40px horizontally
   * before they enter view; on narrow screens that offset would create a
   * horizontal scrollbar. `clip` contains it without creating a scroll
   * container (so it won't interfere with sticky/anchor behavior). */
  overflow-x: clip;
}