/* Accentri - home (design variant A · Editorial) */

.hero {
  position: relative;
  padding-block: clamp(4rem, 8vw, 7.5rem) clamp(3.5rem, 6vw, 6rem);
}

/* The clip lives on this wrapper rather than on .hero itself. A clipping
   context on an in-flow ancestor makes headless full-page renders truncate
   everything painted below it; scoped to an absolutely-positioned layer that
   holds only the mark, it contains the bleed without that side effect. */
.hero__frame {
  position: absolute;
  inset: 0;
  overflow: hidden;
  pointer-events: none;
}
.hero__mark {
  position: absolute;
  right: -5.625rem;
  top: 2.5rem;
  width: 32.5rem;
  opacity: 0.06;
}
/* Stacked hero: headline, then description, then the buttons beneath it. */
.hero__inner { max-width: 48rem; }
.hero__title {
  max-width: 15ch;
  font-size: var(--fs-hero);
  line-height: 0.92;
  letter-spacing: var(--track-hero);
}
.hero__tagline {
  max-width: 34ch;
  margin-top: var(--sp-6);
  font-family: var(--font-display);
  font-size: clamp(1.375rem, 2.6vw, 1.875rem);
  line-height: 1.4;
  color: var(--lead);
}
.hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: var(--sp-3);
  margin-top: var(--sp-7);
}

/* ==========================================================================
   Disciplines band - three cells divided by hairlines
   ========================================================================== */
.disciplines {
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  background: var(--surface);
}
.disciplines__grid { display: grid; grid-template-columns: repeat(3, 1fr); }
.disciplines__cell { padding: var(--sp-7) 2.125rem; }
.disciplines__cell + .disciplines__cell { border-left: 1px solid var(--line-soft); }
.disciplines__cell:first-child { padding-left: 0; }
.disciplines__cell:last-child { padding-right: 0; }
.disciplines__icon { width: 2rem; height: 2rem; }
.disciplines__name {
  margin-top: var(--sp-4);
  font-family: var(--font-display);
  font-size: var(--fs-serif-xs);
  line-height: 1.2;
  color: var(--ink);
}
.disciplines__name a { color: inherit; transition: color var(--dur-fast) var(--ease-out); }
.disciplines__name a:hover { color: var(--green); }

/* ==========================================================================
   Explainer - sticky intro beside a numbered list
   ========================================================================== */
.explainer {
  display: grid;
  grid-template-columns: 0.72fr 1fr;
  gap: 4.5rem;
}
.explainer__intro { position: sticky; top: calc(var(--header-h) + 2.75rem); align-self: start; }
.explainer__title { margin-block: var(--sp-5) var(--sp-5); font-size: var(--fs-h2); line-height: 1.05; }
.explainer__copy { margin-bottom: 1.75rem; font-size: var(--fs-body-lg); line-height: 1.62; color: var(--lead); }
.explainer__copy strong { color: var(--green); font-weight: 600; }

.point {
  display: grid;
  grid-template-columns: 3.5rem 1fr;
  gap: var(--sp-5);
  padding-block: var(--sp-6);
  border-top: 1px solid var(--line);
}
.point:last-child { border-bottom: 1px solid var(--line); }
.point__icon { margin-top: 0.125rem; }
.point__title {
  margin-bottom: var(--sp-2);
  font-family: var(--font-text);
  font-size: 1.0625rem;
  font-weight: 600;
  line-height: 1.35;
  letter-spacing: 0;
  color: var(--ink);
}
.point__copy { font-size: 0.96875rem; line-height: 1.62; color: var(--body); }

/* ==========================================================================
   Anchoring band - the equation set in Garamond on green
   ========================================================================== */
.equation {
  display: flex;
  flex-direction: column;
  gap: 0.875rem;
  padding: 2.125rem var(--sp-6);
  border: 1px solid rgba(247, 244, 238, 0.26);
  font-family: var(--font-display);
}
.equation__row { display: flex; align-items: baseline; gap: var(--sp-3); font-size: 1.875rem; }
/* 0.6 alpha put these at 4.33:1 on the green; 0.72 clears AA at 5.5:1. */
/* Baseline-aligned, the small operators seat low; nudge them toward the math axis. */
.equation__op { font-size: 1.25rem; color: rgba(247, 244, 238, 0.72); position: relative; top: -0.06em; }
.equation__rule { height: 1px; margin-block: 0.375rem; background: rgba(247, 244, 238, 0.26); }

/* ==========================================================================
   Audience split
   ========================================================================== */
.audience__pane { padding: 3.25rem var(--sp-8); }
.audience__pane--alt { background: var(--surface); }
.audience__title { margin-block: var(--sp-4) 0.875rem; font-size: var(--fs-serif-md); line-height: 1.12; }
.audience__copy { margin-bottom: 1.625rem; font-size: 0.96875rem; line-height: 1.62; color: var(--body); }

/* ==========================================================================
   Responsive
   ========================================================================== */
@media (max-width: 60rem) {
  .hero__title { max-width: 18ch; }
  .hero__mark { width: 22rem; right: -4rem; opacity: 0.05; }
  .explainer { grid-template-columns: minmax(0, 1fr); gap: var(--sp-7); }
  .explainer__intro { position: static; }
  .disciplines__grid { grid-template-columns: minmax(0, 1fr); }
  .disciplines__cell { padding: var(--sp-5) 0; }
  .disciplines__cell + .disciplines__cell { border-left: 0; border-top: 1px solid var(--line-soft); }
}

@media (max-width: 46rem) {
  .audience__pane { padding: var(--sp-6) var(--sp-5); }
  .point { grid-template-columns: 2.25rem 1fr; gap: var(--sp-3); }
  .equation__row { font-size: 1.5rem; }
}

@media (max-width: 34rem) {
  .hero__actions { width: 100%; }
  .hero__actions .btn { flex: 1 1 100%; }
}