/* ==========================================================================
   Layout — Container, grid utilities, responsive breakpoints
   ========================================================================== */

/* ── Container ── */
.container {
  width: 100%;
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 var(--space-6);
}

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

/* ── Sections ── */
.section {
  padding: var(--space-20) 0;
}

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

.section--dark {
  background-color: var(--color-primary);
  color: var(--color-white);
}
.section--dark h2,
.section--dark h3,
.section--dark h4 {
  color: var(--color-white);
}
.section--dark .section-title::after {
  background: linear-gradient(90deg, var(--color-accent-gold), var(--color-accent-warm));
}

/* ── 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); }

@media (max-width: 1024px) {
  .grid--4 { grid-template-columns: repeat(2, 1fr); }
  .grid--3 { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 640px) {
  .grid--4,
  .grid--3,
  .grid--2 {
    grid-template-columns: 1fr;
  }
}

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

/* ── Text alignment ── */
.text-center { text-align: center; }
.text-left   { text-align: left; }

/* ── Spacing helpers ── */
.mt-4  { margin-top: var(--space-4); }
.mt-8  { margin-top: var(--space-8); }
.mt-12 { margin-top: var(--space-12); }
.mb-4  { margin-bottom: var(--space-4); }
.mb-8  { margin-bottom: var(--space-8); }
.mb-12 { margin-bottom: var(--space-12); }

/* ── Mobile layout adjustments ── */
@media (max-width: 640px) {
  .container {
    padding: 0 var(--space-4);
  }
  .section {
    padding: var(--space-12) 0;
  }
}

/* ── Wave section divider (SVG) ── */
.wave-divider {
  width: 100%;
  line-height: 0;
  overflow: hidden;
}
.wave-divider svg {
  width: 100%;
  height: 60px;
  display: block;
}
.wave-divider--flip {
  transform: rotate(180deg);
}

/* ── Page wrapper for sticky footer ── */
.page-wrapper {
  display: flex;
  flex-direction: column;
  min-height: 100vh;
  padding-top: 70px; /* offset for fixed header */
}
.page-wrapper main {
  flex: 1;
}