/* ============================================
   SISTEMLUX — Layout System
   Grid, contenedores, responsive mobile-first
   ============================================ */

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

/* ── Section ── */
.section {
  padding: var(--space-4xl) 0;
  position: relative;
}

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

.section--hero {
  padding: calc(var(--navbar-height) + var(--space-3xl)) 0 var(--space-4xl);
  min-height: 100vh;
  min-height: 100dvh;
  display: flex;
  align-items: center;
}

/* ── Section Header ── */
.section__header {
  text-align: center;
  margin-bottom: var(--space-3xl);
  max-width: 700px;
  margin-inline: auto;
}

.section__label {
  font-family: var(--font-heading);
  font-size: var(--fs-sm);
  font-weight: var(--fw-semibold);
  letter-spacing: var(--ls-wider);
  text-transform: uppercase;
  color: var(--color-gold);
  margin-bottom: var(--space-sm);
  display: block;
}

.section__title {
  font-size: var(--fs-3xl);
  font-weight: var(--fw-bold);
  letter-spacing: var(--ls-tight);
  margin-bottom: var(--space-md);
}

.section__subtitle {
  font-size: var(--fs-md);
  line-height: var(--lh-relaxed);
  max-width: 600px;
  margin-inline: auto;
}

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

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

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

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

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

/* ── Tablet (768px+) ── */
@media (min-width: 768px) {
  .section {
    padding: var(--space-5xl) 0;
  }

  .section--hero {
    padding: calc(var(--navbar-height) + var(--space-4xl)) 0 var(--space-5xl);
  }

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

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

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

/* ── Desktop (1280px+) ── */
@media (min-width: 1280px) {
  .grid--3 {
    grid-template-columns: repeat(3, 1fr);
  }

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