/* ============================================================
   LAYOUT.CSS — Containers, Grid, Responsive Utilities
   MR Energia Theme | v1.0.0
   ============================================================ */

/* ── Containers ────────────────────────────────────────────── */

.container {
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 var(--space-4);
}

.container-wide {
  width: 100%;
  max-width: 1440px;
  margin: 0 auto;
  padding: 0 var(--space-4);
}

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

.section {
  padding: var(--space-16) 0;
}

.section-sm {
  padding: var(--space-10) 0;
}

.section-lg {
  padding: var(--space-24) 0;
}

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

.grid {
  display: grid;
  gap: var(--space-6);
}

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

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

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

/* ── Flexbox Utilities ─────────────────────────────────────── */

.flex {
  display: flex;
}

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

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

.items-center {
  align-items: center;
}

.items-start {
  align-items: flex-start;
}

.justify-center {
  justify-content: center;
}

.justify-between {
  justify-content: space-between;
}

.justify-end {
  justify-content: flex-end;
}

.gap-1 { gap: var(--space-1); }
.gap-2 { gap: var(--space-2); }
.gap-3 { gap: var(--space-3); }
.gap-4 { gap: var(--space-4); }
.gap-5 { gap: var(--space-5); }
.gap-6 { gap: var(--space-6); }
.gap-8 { gap: var(--space-8); }

/* ── Text Alignment ────────────────────────────────────────── */

.text-center { text-align: center; }
.text-left { text-align: left; }
.text-right { text-align: right; }

/* ── Display Utilities ─────────────────────────────────────── */

.hidden { display: none; }
.block { display: block; }
.inline-block { display: inline-block; }

/* ── Positioning ───────────────────────────────────────────── */

.relative { position: relative; }
.absolute { position: absolute; }
.fixed { position: fixed; }
.sticky { position: sticky; }

.inset-0 {
  top: 0;
  right: 0;
  bottom: 0;
  left: 0;
}

/* ── Overflow ──────────────────────────────────────────────── */

.overflow-hidden { overflow: hidden; }
.overflow-auto { overflow: auto; }

/* ── Width / Height ────────────────────────────────────────── */

.w-full { width: 100%; }
.h-full { height: 100%; }
.min-h-screen { min-height: 100vh; }

/* ── Z-Index Scale ─────────────────────────────────────────── */

.z-10 { z-index: 10; }
.z-20 { z-index: 20; }
.z-30 { z-index: 30; }
.z-40 { z-index: 40; }
.z-50 { z-index: 50; }
.z-60 { z-index: 60; }

/* ── Visibility ────────────────────────────────────────────── */

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

/* ============================================================
   RESPONSIVE BREAKPOINTS
   sm:  640px
   md:  768px
   lg:  1024px
   xl:  1280px
   2xl: 1536px
   ============================================================ */

/* ── sm (640px) ────────────────────────────────────────────── */
@media (min-width: 640px) {
  .container,
  .container-wide {
    padding: 0 var(--space-6);
  }

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

/* ── md (768px) ────────────────────────────────────────────── */
@media (min-width: 768px) {
  .grid-3 {
    grid-template-columns: repeat(2, 1fr);
  }

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

  .md-flex-row {
    flex-direction: row;
  }

  .md-hidden {
    display: none;
  }

  .md-block {
    display: block;
  }
}

/* ── lg (1024px) ───────────────────────────────────────────── */
@media (min-width: 1024px) {
  .grid-3 {
    grid-template-columns: repeat(3, 1fr);
  }

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

  .lg-flex-row {
    flex-direction: row;
  }

  .lg-hidden {
    display: none;
  }

  .lg-block {
    display: block;
  }
}

/* ── xl (1280px) ───────────────────────────────────────────── */
@media (min-width: 1280px) {
  .grid-4 {
    grid-template-columns: repeat(4, 1fr);
  }

  .xl-hidden {
    display: none;
  }

  .xl-block {
    display: block;
  }
}

/* ── 2xl (1536px) ──────────────────────────────────────────── */
@media (min-width: 1536px) {
  /* Reserved for future use */
}