/* ==========================================================================
   LAYOUT — container, grid, section spacing primitives
   ========================================================================== */

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

.section {
  padding-block: var(--space-10);
}

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

.section-header {
  max-width: 720px;
  margin-bottom: var(--space-8);
}

.section-header--center {
  margin-inline: auto;
  text-align: center;
}

/* ---------- Grid helpers ---------- */
.grid {
  display: grid;
  gap: var(--space-6);
}

.grid-2 { grid-template-columns: repeat(2, 1fr); }
.grid-3 { grid-template-columns: repeat(3, 1fr); }
.grid-4 { grid-template-columns: repeat(4, 1fr); }

.flex {
  display: flex;
  align-items: center;
}

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

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

/* Main content offset for fixed navbar */
main {
  padding-top: var(--navbar-height);
}