/* ============================================
   LAYOUT SYSTEM
   Container, Grid, Flexbox Utilities
   ============================================ */

/* ============ Container ============ */

.container {
  width: 100%;
  max-width: var(--container-xl);
  margin-left: auto;
  margin-right: auto;
  padding-left: var(--space-6);
  padding-right: var(--space-6);
}

@media (min-width: 768px) {
  .container {
    padding-left: var(--space-8);
    padding-right: var(--space-8);
  }
}

@media (min-width: 1024px) {
  .container {
    padding-left: var(--space-12);
    padding-right: var(--space-12);
  }
}

/* Container Sizes */
.container-sm {
  max-width: var(--container-sm);
}

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

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

/* ============ Section Spacing ============ */

section {
  padding-top: var(--section-padding-mobile);
  padding-bottom: var(--section-padding-mobile);
}

@media (min-width: 768px) {
  section {
    padding-top: var(--section-padding-tablet);
    padding-bottom: var(--section-padding-tablet);
  }
}

@media (min-width: 1024px) {
  section {
    padding-top: var(--section-padding-desktop);
    padding-bottom: var(--section-padding-desktop);
  }
}

/* ============ Grid System ============ */

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

.grid-cols-1 {
  grid-template-columns: repeat(1, minmax(0, 1fr));
}

.grid-cols-2 {
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.grid-cols-3 {
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.grid-cols-4 {
  grid-template-columns: repeat(4, minmax(0, 1fr));
}

@media (min-width: 768px) {
  .md\:grid-cols-2 {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .md\:grid-cols-3 {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .md\:grid-cols-4 {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }
}

@media (min-width: 1024px) {
  .lg\:grid-cols-3 {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .lg\:grid-cols-4 {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }
}

/* ============ Flexbox Utilities ============ */

.flex {
  display: flex;
}

.inline-flex {
  display: inline-flex;
}

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

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

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

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

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

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

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

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

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

.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-6 { gap: var(--space-6); }
.gap-8 { gap: var(--space-8); }

/* ============ Display ============ */

.block {
  display: block;
}

.inline-block {
  display: inline-block;
}

.hidden {
  display: none;
}

@media (min-width: 768px) {
  .md\:block {
    display: block;
  }

  .md\:hidden {
    display: none;
  }
}

@media (min-width: 1024px) {
  .lg\:block {
    display: block;
  }

  .lg\:hidden {
    display: none;
  }
}

/* ============ Positioning ============ */

.relative {
  position: relative;
}

.absolute {
  position: absolute;
}

.fixed {
  position: fixed;
}

.sticky {
  position: sticky;
}

/* ============ Overflow ============ */

.overflow-hidden {
  overflow: hidden;
}

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

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

/* ============ Width & Height ============ */

.w-full {
  width: 100%;
}

.h-full {
  height: 100%;
}

.min-h-screen {
  min-height: 100vh;
}

/* ============ Text Alignment ============ */

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

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

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

/* ============ Opacity ============ */

.opacity-0 {
  opacity: 0;
}

.opacity-50 {
  opacity: 0.5;
}

.opacity-100 {
  opacity: 1;
}