/* ==========================================================================
   Layout — Container, grid helpers, responsive breakpoints
   ========================================================================== */

/* --- Container --- */

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

.container--narrow {
  max-width: 800px;
}

.container--wide {
  max-width: 1400px;
}

/* --- Page wrapper — push footer to bottom --- */

.ca-page {
  display: flex;
  flex-direction: column;
  min-height: 100vh;
}

.ca-page > main {
  flex: 1;
}

/* --- Section spacing --- */

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

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

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

.ca-section--dark {
  background-color: var(--color-primary);
  color: var(--color-white);
}

.ca-section--dark h2,
.ca-section--dark h3,
.ca-section--dark h4 {
  color: var(--color-white);
}

.ca-section--dark p {
  color: rgba(255, 255, 255, 0.85);
}

.ca-section--light {
  background-color: var(--color-white);
}

.ca-section--alt {
  background-color: var(--color-bg);
}

/* --- Section header (centered titles) --- */

.ca-section-header {
  text-align: center;
  max-width: 700px;
  margin-inline: auto;
  margin-bottom: var(--space-12);
}

.ca-section-header h2 {
  margin-bottom: var(--space-4);
}

.ca-section-header p {
  color: var(--color-text-secondary);
  font-size: var(--font-size-lg);
}

.ca-section--dark .ca-section-header p {
  color: rgba(255, 255, 255, 0.75);
}

/* --- Grid helpers --- */

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

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

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

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

@media (max-width: 1024px) {
  .grid-4 {
    grid-template-columns: repeat(2, 1fr);
  }
}

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

/* --- Flex helpers --- */

.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-wrap {
  flex-wrap: wrap;
}

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

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