/* ═══════════════════════════════════════════════════════════
   IRENACER — Layout System
   Grid, containers, responsive helpers.
   ═══════════════════════════════════════════════════════════ */

/* ─── Container ─── */
.container {
  width: 100%;
  max-width: var(--grid-max-width);
  margin-left: auto;
  margin-right: auto;
  padding-left: var(--section-px);
  padding-right: var(--section-px);
}

.container--narrow {
  max-width: 820px;
}

.container--wide {
  max-width: 1440px;
}

.container--full {
  max-width: none;
  padding-left: 0;
  padding-right: 0;
}

/* ─── Section ─── */
.section {
  padding-top: var(--section-py);
  padding-bottom: var(--section-py);
}

.section--sm {
  padding-top: calc(var(--section-py) * 0.6);
  padding-bottom: calc(var(--section-py) * 0.6);
}

.section--lg {
  padding-top: calc(var(--section-py) * 1.4);
  padding-bottom: calc(var(--section-py) * 1.4);
}

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

.section--dark {
  background-color: var(--surface-dark);
  color: var(--text-inverse);
}

/* ─── Grid (CSS Grid) ─── */
.grid {
  display: grid;
  gap: var(--grid-gutter);
}

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

/* Responsive grid */
@media (max-width: 768px) {
  .grid--2,
  .grid--3,
  .grid--4 {
    grid-template-columns: 1fr;
  }
}

@media (min-width: 769px) and (max-width: 1024px) {
  .grid--3 { grid-template-columns: repeat(2, 1fr); }
  .grid--4 { grid-template-columns: repeat(2, 1fr); }
}

/* Auto-fit grid for flexible layouts */
.grid--auto {
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
}

.grid--auto-sm {
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
}

/* ─── Flexbox helpers ─── */
.flex {
  display: flex;
}

.flex--col {
  flex-direction: column;
}

.flex--wrap {
  flex-wrap: wrap;
}

.flex--center {
  align-items: center;
  justify-content: center;
}

.flex--between {
  justify-content: space-between;
  align-items: center;
}

.flex--gap-sm { gap: var(--space-3); }
.flex--gap    { gap: var(--space-6); }
.flex--gap-lg { gap: var(--space-8); }

/* ─── Two-column content layout ─── */
.split {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-12);
  align-items: center;
}

.split--reverse {
  direction: rtl;
}

.split--reverse > * {
  direction: ltr;
}

@media (max-width: 768px) {
  .split {
    grid-template-columns: 1fr;
    gap: var(--space-8);
  }
  .split--reverse {
    direction: ltr;
  }
}

/* ─── Full-width wrapper (breaks out of container) ─── */
.full-bleed {
  width: 100vw;
  margin-left: calc(50% - 50vw);
}

/* ─── Aspect ratio containers ─── */
.aspect-video { aspect-ratio: 16 / 9; }
.aspect-square { aspect-ratio: 1 / 1; }
.aspect-photo { aspect-ratio: 4 / 3; }

/* ─── Sticky positioning ─── */
.sticky {
  position: sticky;
  top: 0;
  z-index: var(--z-sticky);
}

/* ─── Responsive visibility ─── */
@media (max-width: 768px) {
  .hide-mobile { display: none !important; }
}

@media (min-width: 769px) {
  .hide-desktop { display: none !important; }
}

@media (min-width: 769px) and (max-width: 1024px) {
  .hide-tablet { display: none !important; }
}