/* ============================================
   Layout Utilities
   ============================================ */

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

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

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

/* Sections */
.section {
  padding: var(--space-4xl) 0;
}

.section--dark {
  background-color: var(--color-dark);
  color: var(--color-gray-300);
}

.section--dark h1,
.section--dark h2,
.section--dark h3,
.section--dark h4 {
  color: var(--color-white);
}

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

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

.section--gradient {
  background: var(--gradient-teal-bar);
  color: var(--color-white);
}

.section--gradient h1,
.section--gradient h2,
.section--gradient h3,
.section--gradient h4 {
  color: var(--color-white);
}

/* Grid System */
.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);
}

.grid--auto-fit {
  grid-template-columns: repeat(auto-fit, minmax(280px, 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 {
  display: flex;
  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); }
.gap-2xl { gap: var(--space-2xl); }

/* Alignment */
.text-center { text-align: center; }
.text-left { text-align: left; }
.text-right { text-align: right; }

.mx-auto { margin-left: auto; margin-right: auto; }

/* Section Header */
.section-header {
  text-align: center;
  max-width: 700px;
  margin: 0 auto var(--space-3xl);
}

.section-header__subtitle {
  display: inline-block;
  font-size: var(--fs-small);
  font-weight: var(--fw-semibold);
  color: var(--color-primary);
  text-transform: uppercase;
  letter-spacing: 0.1em;
  margin-bottom: var(--space-sm);
}

.section--dark .section-header__subtitle,
.section--gradient .section-header__subtitle {
  color: var(--color-primary-light);
}

.section-header__title {
  font-size: var(--fs-h2);
  margin-bottom: var(--space-md);
}

.section-header__desc {
  font-size: var(--fs-body-lg);
  color: var(--color-gray-500);
  line-height: var(--line-height-relaxed);
}

.section--dark .section-header__desc,
.section--gradient .section-header__desc {
  color: var(--color-gray-300);
}