/* Grid System */

.container {
  max-width: var(--container-max-width);
  margin: 0 auto;
  padding: 0 var(--container-padding);
}

.container-fluid {
  width: 100%;
  padding: 0 var(--container-padding);
}

.container-narrow {
  max-width: 900px;
  margin: 0 auto;
  padding: 0 var(--container-padding);
}

/* Grid */
.grid {
  display: grid;
  gap: var(--spacing-xl);
}

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

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

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

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

.grid-auto-fit {
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
}

.grid-auto-fill {
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
}

/* Gap Utilities */
.gap-none {
  gap: 0;
}

.gap-sm {
  gap: var(--spacing-sm);
}

.gap-md {
  gap: var(--spacing-md);
}

.gap-lg {
  gap: var(--spacing-lg);
}

.gap-xl {
  gap: var(--spacing-xl);
}

.gap-2xl {
  gap: var(--spacing-2xl);
}

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

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

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

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

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

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

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

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

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

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

/* Responsive Grid */
@media (max-width: 1024px) {
  .grid-cols-4 {
    grid-template-columns: repeat(2, 1fr);
  }
  
  .grid-cols-3 {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 768px) {
  .container,
  .container-fluid,
  .container-narrow {
    padding: 0 var(--spacing-lg);
  }
  
  .grid-cols-2,
  .grid-cols-3,
  .grid-cols-4 {
    grid-template-columns: 1fr;
  }
  
  .grid {
    gap: var(--spacing-lg);
  }
}

/* Display Utilities */
.block {
  display: block;
}

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

.hidden {
  display: none;
}

/* Responsive Display */
@media (max-width: 768px) {
  .mobile-hidden {
    display: none;
  }
}

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