/* ==========================================================================
   RiyalMarketing — Layout
   Container, grid, and the editorial "margin column" system that is this
   site's structural signature: a mono eyebrow label sits in a narrow left
   column beside the running content, like a margin note in a printed report.
   ========================================================================== */

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

.section {
  padding-block: var(--section-gap);
}
.section--sm { padding-block: var(--section-gap-sm); }
.section--tight { padding-block: var(--space-9); }

.section-dark {
  background: var(--color-onyx);
  color: var(--color-ink-inverse);
}
.section-dark h1, .section-dark h2, .section-dark h3 { color: var(--color-ink-inverse); }
.section-dark .body-lead { color: var(--color-carbon-inverse); }

.section-wash {
  background: var(--color-accent-wash);
}

/* ---- Editorial margin-note grid ----
   Desktop: a fixed narrow rail (eyebrow / number / label) beside main content.
   Collapses to stacked on smaller screens. */
.editorial-row {
  display: grid;
  grid-template-columns: 220px 1fr;
  gap: var(--space-9);
}
@media (max-width: 900px) {
  .editorial-row {
    grid-template-columns: 1fr;
    gap: var(--space-4);
  }
}

.editorial-rail {
  position: sticky;
  top: 120px;
  align-self: start;
}

@media (max-width: 600px){
  .editorial-rail {
    position: relative;
    top: 0px;
  }
}

/* ---- Generic grids ---- */
.grid {
  display: grid;
  gap: var(--space-7);
}
.grid-2 { grid-template-columns: repeat(2, 1fr); }
.grid-3 { grid-template-columns: repeat(3, 1fr); }
.grid-4 { grid-template-columns: repeat(4, 1fr); }

@media (max-width: 900px) {
  .grid-2, .grid-3, .grid-4 { grid-template-columns: 1fr; }
}
@media (min-width: 901px) and (max-width: 1180px) {
  .grid-3, .grid-4 { grid-template-columns: repeat(2, 1fr); }
}

.section-head {
  max-width: 640px;
  margin-bottom: var(--space-9);
}
.section-head .eyebrow { margin-bottom: var(--space-4); }
.section-head h2 { margin-top: var(--space-3); }
.section-head .body-lead { margin-top: var(--space-4); }

.section-head--center {
  max-width: 640px;
  margin-inline: auto;
  text-align: center;
}
.section-head--center .eyebrow { justify-content: center; width: 100%; }

/* ---- Divider ---- */
.hr {
  border: none;
  border-top: 1px solid var(--color-border);
  margin: 0;
}
.hr-inverse { border-top-color: var(--color-border-inverse); }

/* ---- Visually hidden (for a11y-only text) ---- */
.sr-only {
  position: absolute;
  width: 1px; height: 1px;
  padding: 0; margin: -1px;
  overflow: hidden;
  clip: rect(0,0,0,0);
  white-space: nowrap;
  border: 0;
}