/* ============================================
   Layout — Container, Grid, Section Spacing
   ============================================ */

.container {
  width: 100%;
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 var(--container-padding);
}

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

/* Sections */
.section {
  padding: var(--space-section) 0;
}

.section--sm {
  padding: var(--space-3xl) 0;
}

.section--lg {
  padding: var(--space-5xl) 0;
}

.section--alt {
  background-color: var(--blue-gray-50);
}

.section--dark {
  background-color: var(--navy-800);
  color: var(--gray-200);
}

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

/* Decorated section with dot-grid pattern */
.section--decorated {
  position: relative;
}

.section--decorated::before {
  content: '';
  position: absolute;
  inset: 0;
  background-image: url("data:image/svg+xml,%3Csvg width='32' height='32' xmlns='http://www.w3.org/2000/svg'%3E%3Ccircle cx='16' cy='16' r='1' fill='rgba(13,155,133,0.04)'/%3E%3C/svg%3E");
  background-size: 32px 32px;
  pointer-events: none;
  z-index: 0;
}

.section--decorated > * {
  position: relative;
  z-index: 1;
}

/* Tech mesh background */
.section--gradient-mesh {
  position: relative;
}

.section--gradient-mesh::before {
  content: '';
  position: absolute;
  inset: 0;
  background: var(--gradient-tech-mesh);
  pointer-events: none;
  z-index: 0;
}

.section--gradient-mesh > * {
  position: relative;
  z-index: 1;
}

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

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

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

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

/* Two-column layout */
.two-col {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-4xl);
  align-items: center;
}

.two-col--reverse .two-col__content {
  order: -1;
}

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

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

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

.flex--gap-sm {
  gap: var(--space-sm);
}

.flex--gap-md {
  gap: var(--space-md);
}

.flex--gap-lg {
  gap: var(--space-lg);
}

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

/* Text alignment */
.text-center {
  text-align: center;
}

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

@media (max-width: 768px) {
  .section {
    padding: var(--space-3xl) 0;
  }

  .section--lg {
    padding: var(--space-4xl) 0;
  }

  .grid--2,
  .grid--3 {
    grid-template-columns: 1fr;
  }

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

  .two-col {
    grid-template-columns: 1fr;
    gap: var(--space-xl);
  }

  .two-col--reverse .two-col__content {
    order: 0;
  }

  .container {
    padding: 0 var(--space-md);
  }
}