/* ==========================================================
   LAYOUT.CSS — Grid, containers, section structure
   Sanus Pharma · Editorial Light v20260526
   ========================================================== */

/* ── CONTAINER SYSTEM ────────────────────────────────────── */
.container {
  width: 100%;
  max-width: 1200px;
  margin-inline: auto;
  padding-inline: var(--space-8);
}

.container--wide {
  max-width: 1400px;
}

.container--narrow {
  max-width: 800px;
}

@media (max-width: 768px) {
  .container { padding-inline: var(--space-6); }
}

/* ── SECTION BASE ────────────────────────────────────────── */
section {
  position: relative;
}

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

.section--sm {
  padding-block: var(--space-20);
}

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

@media (max-width: 768px) {
  .section        { padding-block: var(--space-20); }
  .section--sm    { padding-block: var(--space-16); }
  .section--lg    { padding-block: var(--space-24); }
}

/* ── SECTION HEADER ──────────────────────────────────────── */
.section-header {
  margin-bottom: var(--space-16);
}

.section-header--center {
  text-align: center;
  max-width: 640px;
  margin-inline: auto;
  margin-bottom: var(--space-16);
}

.section-header--wide {
  max-width: 800px;
}

.section-tag {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  font-family: var(--font-body);
  font-size: var(--text-xs);
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--primary);
  margin-bottom: var(--space-4);
}

.section-tag::before {
  content: '';
  display: block;
  width: 20px;
  height: 2px;
  background: var(--primary);
  border-radius: 2px;
}

.section-title {
  font-family: var(--font-display);
  font-weight: 800;
  line-height: 1.05;
  letter-spacing: -0.03em;
  color: var(--ink);
  margin-bottom: var(--space-4);
}

.section-title em {
  font-style: normal;
  color: var(--primary);
}

.section-subtitle {
  font-size: var(--text-lg);
  line-height: 1.7;
  color: var(--ink-3);
  max-width: 600px;
}

/* ── BACKGROUND VARIANTS ─────────────────────────────────── */
.bg-white   { background-color: var(--white); }
.bg-gray    { background-color: var(--gray-bg); }
.bg-mist    { background-color: var(--mist); }
.bg-deep    { background-color: var(--deep); color: var(--white); }
.bg-ink     { background-color: var(--ink); }

.bg-deep .section-title,
.bg-deep h2, .bg-deep h3 { color: var(--white); }

.bg-deep .section-tag { color: var(--secondary); }
.bg-deep .section-tag::before { background: var(--secondary); }
.bg-deep p { color: rgba(255,255,255,0.72); }

/* ── GRID SYSTEMS ────────────────────────────────────────── */
.grid-2 {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--space-8);
}

.grid-3 {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-8);
}

.grid-4 {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--space-6);
}

.grid-auto {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: var(--space-6);
}

/* ── FLEX UTILITIES ──────────────────────────────────────── */
.flex         { display: flex; }
.flex-col     { flex-direction: column; }
.items-center { align-items: center; }
.items-start  { align-items: flex-start; }
.justify-between { justify-content: space-between; }
.justify-center  { justify-content: center; }
.gap-4  { gap: var(--space-4); }
.gap-6  { gap: var(--space-6); }
.gap-8  { gap: var(--space-8); }
.gap-12 { gap: var(--space-12); }

/* ── RESPONSIVE GRID BREAKPOINTS ─────────────────────────── */
@media (max-width: 1024px) {
  .grid-4 { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 768px) {
  .grid-2,
  .grid-3,
  .grid-4 { grid-template-columns: 1fr; }
}

/* ── EDITORIAL SPLIT LAYOUT ──────────────────────────────── */
.editorial-split {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-20);
  align-items: center;
}

.editorial-split--reverse {
  direction: rtl;
}

.editorial-split--reverse > * {
  direction: ltr;
}

@media (max-width: 900px) {
  .editorial-split { grid-template-columns: 1fr; gap: var(--space-12); }
  .editorial-split--reverse { direction: ltr; }
}

/* ── DIVIDER ─────────────────────────────────────────────── */
.divider {
  width: 100%;
  height: 1px;
  background: var(--border-gray);
}

/* ── SPACERS ─────────────────────────────────────────────── */
.spacer-sm { height: var(--space-8); }
.spacer-md { height: var(--space-16); }
.spacer-lg { height: var(--space-24); }