/* ==========================================================
   LAYOUT UTILITIES — Tailwind-inspired utility classes
   Hybrid approach: utilities for layout, custom CSS for design
   ========================================================== */

/* --- Container --- */
.container {
  width: 100%;
  max-width: var(--max-width);
  margin-inline: auto;
  padding-inline: var(--gutter);
}

.container-narrow {
  max-width: var(--max-width-narrow);
  margin-inline: auto;
  padding-inline: var(--gutter);
}

.container-wide {
  max-width: var(--max-width-wide);
  margin-inline: auto;
  padding-inline: var(--gutter);
}

.container-full {
  width: 100%;
  padding-inline: var(--gutter);
}

/* --- Section Spacing --- */
.section {
  padding-block: var(--space-section);
}

.section-sm {
  padding-block: var(--space-3xl);
}

/* --- Display --- */
.flex { display: flex; }
.inline-flex { display: inline-flex; }
.grid { display: grid; }
.block { display: block; }
.hidden { display: none; }

/* --- Flex Utilities --- */
.flex-col { flex-direction: column; }
.flex-row { flex-direction: row; }
.flex-wrap { flex-wrap: wrap; }
.items-center { align-items: center; }
.items-start { align-items: flex-start; }
.items-end { align-items: flex-end; }
.items-stretch { align-items: stretch; }
.justify-center { justify-content: center; }
.justify-between { justify-content: space-between; }
.justify-end { justify-content: flex-end; }
.flex-1 { flex: 1; }
.flex-shrink-0 { flex-shrink: 0; }

/* --- Grid Utilities --- */
.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(320px, 1fr));
}
.grid-auto-sm {
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
}

/* --- Gap --- */
.gap-xs { gap: var(--space-xs); }
.gap-sm { gap: var(--space-sm); }
.gap-md { gap: var(--space-md); }
.gap-lg { gap: var(--space-lg); }
.gap-xl { gap: var(--space-xl); }
.gap-2xl { gap: var(--space-2xl); }

/* --- Padding --- */
.p-0 { padding: 0; }
.p-xs { padding: var(--space-xs); }
.p-sm { padding: var(--space-sm); }
.p-md { padding: var(--space-md); }
.p-lg { padding: var(--space-lg); }
.p-xl { padding: var(--space-xl); }
.p-2xl { padding: var(--space-2xl); }

.px-sm { padding-inline: var(--space-sm); }
.px-md { padding-inline: var(--space-md); }
.px-lg { padding-inline: var(--space-lg); }
.py-sm { padding-block: var(--space-sm); }
.py-md { padding-block: var(--space-md); }
.py-lg { padding-block: var(--space-lg); }
.py-xl { padding-block: var(--space-xl); }

/* --- Margin --- */
.m-0 { margin: 0; }
.mt-sm { margin-top: var(--space-sm); }
.mt-md { margin-top: var(--space-md); }
.mt-lg { margin-top: var(--space-lg); }
.mt-xl { margin-top: var(--space-xl); }
.mb-sm { margin-bottom: var(--space-sm); }
.mb-md { margin-bottom: var(--space-md); }
.mb-lg { margin-bottom: var(--space-lg); }
.mb-xl { margin-bottom: var(--space-xl); }
.mx-auto { margin-inline: auto; }

/* --- Text Alignment --- */
.text-center { text-align: center; }
.text-left { text-align: left; }
.text-right { text-align: right; }

/* --- Position --- */
.relative { position: relative; }
.absolute { position: absolute; }
.fixed { position: fixed; }
.sticky { position: sticky; }
.inset-0 { inset: 0; }
.z-10 { z-index: 10; }
.z-20 { z-index: 20; }
.z-50 { z-index: 50; }
.z-100 { z-index: 100; }

/* --- Overflow --- */
.overflow-hidden { overflow: hidden; }
.overflow-auto { overflow: auto; }

/* --- Width/Height --- */
.w-full { width: 100%; }
.h-full { height: 100%; }
.h-screen { height: 100vh; }
.h-screen { height: 100dvh; }
.min-h-screen { min-height: 100vh; }
.min-h-screen { min-height: 100dvh; }

/* --- Two-Column Split Layout --- */
.split {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-3xl);
  align-items: center;
}

.split-reverse {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-3xl);
  align-items: center;
}

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

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

/* --- Image Containers --- */
.img-cover {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.img-container {
  overflow: hidden;
  border-radius: var(--radius-lg);
}

.img-container img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform var(--duration-slow) var(--ease-out);
}

.img-container:hover img {
  transform: scale(1.05);
}

/* Aspect ratios */
.aspect-video { aspect-ratio: 16/9; }
.aspect-square { aspect-ratio: 1; }
.aspect-portrait { aspect-ratio: 3/4; }
.aspect-landscape { aspect-ratio: 4/3; }

/* --- Responsive --- */
@media (max-width: 1024px) {
  .grid-4 { grid-template-columns: repeat(2, 1fr); }
  .split,
  .split-reverse {
    grid-template-columns: 1fr;
    gap: var(--space-2xl);
  }
  .split-reverse > :first-child { order: 1; }
  .split-reverse > :last-child { order: 2; }
}

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

  .hidden-mobile { display: none !important; }
  .show-mobile { display: block !important; }

  .text-center-mobile { text-align: center; }

  .container { padding-inline: 1.25rem; }
}

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