/* ============================================
   Layout — Grid, Containers, Responsive
   ============================================ */

/* ---- Container ---- */
.container {
  width: 100%;
  max-width: var(--container-xl);
  margin-inline: auto;
  padding-inline: var(--space-6);
}

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

.container--wide {
  max-width: var(--container-2xl);
}

/* ---- Sections ---- */
.section {
  padding-block: var(--space-20);
  position: relative;
}

.section--lg {
  padding-block: var(--space-32);
}

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

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

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

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

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

.flex--gap-sm {
  gap: var(--space-3);
}

.flex--gap {
  gap: var(--space-6);
}

.flex--gap-lg {
  gap: var(--space-10);
}

/* ---- Section Header ---- */
.section-header {
  text-align: center;
  max-width: 720px;
  margin-inline: auto;
  margin-bottom: var(--space-16);
}

.section-header__label {
  display: inline-flex;
  align-items: center;
  gap: var(--space-3);
  font-family: var(--font-mono);
  font-size: var(--text-sm);
  font-weight: var(--weight-medium);
  text-transform: uppercase;
  letter-spacing: 0.15em;
  color: var(--color-accent-cyan);
  margin-bottom: var(--space-4);
}

.section-header__label::before {
  content: '';
  display: inline-block;
  width: 32px;
  height: 1px;
  background: var(--gradient-primary);
}

.section-header__label::after {
  content: '';
  display: inline-block;
  width: 32px;
  height: 1px;
  background: var(--gradient-primary);
}

.section-header__title {
  font-size: var(--text-4xl);
  font-weight: var(--weight-bold);
  margin-bottom: var(--space-6);
  color: var(--color-text-heading);
}

.section-header__subtitle {
  font-size: var(--text-lg);
  color: var(--color-text-secondary);
  line-height: var(--leading-relaxed);
}

/* ---- Responsive ---- */
@media (min-width: 768px) {
  .container {
    padding-inline: var(--space-8);
  }

  .section {
    padding-block: var(--space-24);
  }

  .section--lg {
    padding-block: var(--space-32);
  }

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

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

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

  .section-header__title {
    font-size: var(--text-5xl);
  }
}

@media (min-width: 1024px) {
  .container {
    padding-inline: var(--space-10);
  }

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

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