/* ==========================================================================
   Infobox — Layout
   12-column grid, container, responsive utilities
   ========================================================================== */

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

@media (min-width: 768px) {
  .container {
    padding-left: var(--space-8);
    padding-right: var(--space-8);
  }
}

@media (min-width: 1024px) {
  .container {
    padding-left: var(--space-12);
    padding-right: var(--space-12);
  }
}

/* 12-column grid */
.grid {
  display: grid;
  gap: var(--gutter);
}

.grid-12 {
  grid-template-columns: repeat(12, 1fr);
}

/* Common grid spans */
.col-span-1  { grid-column: span 1; }
.col-span-2  { grid-column: span 2; }
.col-span-3  { grid-column: span 3; }
.col-span-4  { grid-column: span 4; }
.col-span-5  { grid-column: span 5; }
.col-span-6  { grid-column: span 6; }
.col-span-7  { grid-column: span 7; }
.col-span-8  { grid-column: span 8; }
.col-span-9  { grid-column: span 9; }
.col-span-10 { grid-column: span 10; }
.col-span-11 { grid-column: span 11; }
.col-span-12 { grid-column: span 12; }

/* Responsive column spans */
@media (min-width: 768px) {
  .md\:col-span-4  { grid-column: span 4; }
  .md\:col-span-5  { grid-column: span 5; }
  .md\:col-span-6  { grid-column: span 6; }
  .md\:col-span-7  { grid-column: span 7; }
  .md\:col-span-8  { grid-column: span 8; }
  .md\:col-span-12 { grid-column: span 12; }
}

@media (min-width: 1024px) {
  .lg\:col-span-3  { grid-column: span 3; }
  .lg\:col-span-4  { grid-column: span 4; }
  .lg\:col-span-5  { grid-column: span 5; }
  .lg\:col-span-6  { grid-column: span 6; }
  .lg\:col-span-7  { grid-column: span 7; }
  .lg\:col-span-8  { grid-column: span 8; }
  .lg\:col-span-9  { grid-column: span 9; }
}

/* Simple column layouts */
.grid-cols-1 { grid-template-columns: 1fr; }
.grid-cols-2 { grid-template-columns: repeat(2, 1fr); }
.grid-cols-3 { grid-template-columns: repeat(3, 1fr); }
.grid-cols-4 { grid-template-columns: repeat(4, 1fr); }

@media (min-width: 768px) {
  .md\:grid-cols-2 { grid-template-columns: repeat(2, 1fr); }
  .md\:grid-cols-3 { grid-template-columns: repeat(3, 1fr); }
  .md\:grid-cols-4 { grid-template-columns: repeat(4, 1fr); }
}

@media (min-width: 1024px) {
  .lg\:grid-cols-2 { grid-template-columns: repeat(2, 1fr); }
  .lg\:grid-cols-3 { grid-template-columns: repeat(3, 1fr); }
  .lg\:grid-cols-4 { grid-template-columns: repeat(4, 1fr); }
}

/* Asymmetric layouts */
.grid-7-5,
.grid-8-4,
.grid-5-7 {
  display: grid;
  gap: var(--gutter);
  grid-template-columns: 1fr;
}

@media (min-width: 1024px) {
  .grid-7-5 { grid-template-columns: 7fr 5fr; }
  .grid-8-4 { grid-template-columns: 8fr 4fr; }
  .grid-5-7 { grid-template-columns: 5fr 7fr; }
}

/* Flex utilities */
.flex { display: flex; }
.flex-col { flex-direction: column; }
.flex-wrap { flex-wrap: wrap; }
.items-center { align-items: center; }
.items-start { align-items: flex-start; }
.items-end { align-items: flex-end; }
.justify-center { justify-content: center; }
.justify-between { justify-content: space-between; }
.justify-end { justify-content: flex-end; }
.gap-1 { gap: var(--space-1); }
.gap-2 { gap: var(--space-2); }
.gap-3 { gap: var(--space-3); }
.gap-4 { gap: var(--space-4); }
.gap-6 { gap: var(--space-6); }
.gap-8 { gap: var(--space-8); }

/* Section spacing */
.section {
  padding-top: var(--space-20);
  padding-bottom: var(--space-20);
}

.section-lg {
  padding-top: var(--space-24);
  padding-bottom: var(--space-24);
}

.section-xl {
  padding-top: var(--space-32);
  padding-bottom: var(--space-32);
}

/* Background variants */
.bg-page      { background-color: var(--color-bg-page); }
.bg-white     { background-color: var(--color-bg-card); }
.bg-dark      { background-color: var(--color-bg-dark); }

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