/* ============================================================
   LAYOUT.CSS – Grid, Container, Breakpoints
   ============================================================ */

/* ---- Container ---- */
.container {
  width: 100%;
  max-width: 1200px;
  margin-inline: auto;
  padding-inline: 1.25rem;
}

.container--narrow {
  max-width: 800px;
}

.container--wide {
  max-width: 1400px;
}

/* ---- Section Wrapper ---- */
.section {
  padding-block: 5rem;
}

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

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

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

.section--dark p {
  color: rgba(255,255,255,.75);
}

.section-header {
  text-align: center;
  max-width: 680px;
  margin-inline: auto;
  margin-bottom: 3.5rem;
}

.section-header p {
  margin-top: 0.75rem;
}

/* ---- Generic Grid ---- */
.grid {
  display: grid;
  gap: 1.5rem;
}

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

/* ---- Flex helpers ---- */
.flex { display: flex; }
.flex--center { align-items: center; justify-content: center; }
.flex--between { align-items: center; justify-content: space-between; }
.gap-1 { gap: 1rem; }
.gap-2 { gap: 2rem; }

/* ---- Two-column split ---- */
.split {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 3.5rem;
  align-items: center;
}

.split--reverse > :first-child { order: 2; }
.split--reverse > :last-child  { order: 1; }

/* ============================================================
   BREAKPOINTS – Mobile First
   ============================================================ */

/* Small mobile (480px+) */
@media (min-width: 480px) {
  .container { padding-inline: 1.5rem; }
}

/* Tablet (768px+) */
@media (min-width: 768px) {
  .container { padding-inline: 2rem; }
  .section { padding-block: 5.5rem; }
  .grid--2-tablet { grid-template-columns: repeat(2, 1fr); }
}

/* Desktop (1024px+) */
@media (min-width: 1024px) {
  .container { padding-inline: 2.5rem; }
  .section { padding-block: 6.5rem; }
}

/* Wide (1280px+) */
@media (min-width: 1280px) {
  .container { padding-inline: 3rem; }
}

/* ---- Collapse responsive helpers ---- */
@media (max-width: 767px) {
  .grid--2,
  .grid--3,
  .grid--4,
  .split {
    grid-template-columns: 1fr;
    gap: 2rem;
  }

  .split--reverse > :first-child { order: 0; }
  .split--reverse > :last-child  { order: 0; }
}

@media (min-width: 768px) and (max-width: 1023px) {
  .grid--3 { grid-template-columns: repeat(2, 1fr); }
  .grid--4 { grid-template-columns: repeat(2, 1fr); }
}