/* =============================================
   LAYOUT — Grid, Container, Responsive
   ============================================= */

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

.container--narrow {
  max-width: 900px;
}

.container--wide {
  max-width: 1600px;
}

/* Grid System */
.grid {
  display: grid;
  gap: var(--space-lg);
}

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

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

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

/* Flex Utilities */
.flex {
  display: flex;
}

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

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

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

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

.gap-sm { gap: var(--space-sm); }
.gap-md { gap: var(--space-md); }
.gap-lg { gap: var(--space-lg); }
.gap-xl { gap: var(--space-xl); }

/* =============================================
   RESPONSIVE BREAKPOINTS — Mobile First
   ============================================= */

/* Large phones (480px+) */
@media (min-width: 480px) {
  .grid--2 {
    grid-template-columns: 1fr 1fr;
  }
}

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

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

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

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

/* Standard desktops (1280px+) */
@media (min-width: 1280px) {
  :root {
    --container-max: 1200px;
  }
}

/* Large desktops (1536px+) */
@media (min-width: 1536px) {
  :root {
    --container-max: 1400px;
  }
}