/* ════════════════════════════════════════════════════════════════════════════
   SECTION HEADER + PAGE HERO — the identical opening treatment on every page.
   ════════════════════════════════════════════════════════════════════════════ */

/* ── Section header (eyebrow → heading → subheading) ───────────────────────── */
.ao-section-header { max-width: var(--measure); margin-bottom: clamp(2rem, 1.5rem + 2.2vw, 3.5rem); }
.ao-section-header--center { margin-inline: auto; text-align: center; }
.ao-section-header--center .ao-eyebrow { justify-content: center; }
.ao-section-header .ao-eyebrow { margin-bottom: var(--space-4); }
.ao-section-header__heading { margin: 0 0 var(--space-4); }
.ao-section-header__sub {
  font-size: var(--text-md);
  line-height: var(--leading-relaxed);
  color: var(--color-text-3);
}
.ao-ink .ao-section-header__sub { color: var(--color-on-ink-2); }

/* ── Page hero — the shared page-opening band ──────────────────────────────── */
.ao-hero {
  position: relative;
  padding-block: clamp(4rem, 3rem + 5vw, 7.5rem) clamp(3rem, 2.2rem + 3.5vw, 5rem);
  border-bottom: 1px solid var(--color-border);
  overflow: hidden;
}
.ao-hero .ao-eyebrow { margin-bottom: var(--space-5); }
.ao-hero__heading {
  font-size: var(--text-5xl);
  max-width: 18ch;
  margin: 0 0 var(--space-5);
}
.ao-hero--display .ao-hero__heading { font-size: var(--text-6xl); }
.ao-hero__sub {
  font-size: var(--text-lg);
  line-height: var(--leading-relaxed);
  color: var(--color-text-3);
  max-width: 52ch;
  margin: 0 0 var(--space-8);
}
.ao-hero__actions { display: flex; flex-wrap: wrap; gap: var(--space-3); }
.ao-hero--center { text-align: center; }
.ao-hero--center .ao-eyebrow { justify-content: center; }
.ao-hero--center .ao-hero__heading,
.ao-hero--center .ao-hero__sub { margin-inline: auto; }
.ao-hero--center .ao-hero__actions { justify-content: center; }

/* Two-column hero (text + signature visual) */
.ao-hero__grid {
  display: grid;
  gap: var(--space-10);
  grid-template-columns: 1fr;
  align-items: center;
}
@media (min-width: 1024px) {
  .ao-hero__grid { grid-template-columns: minmax(0, 6fr) minmax(0, 5fr); }
}

/* Subtle signature backdrop — engineering grid, fades at edges.
   Drawn via ::before so every .ao-hero gets it without per-view markup. */
.ao-hero::before {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  background-image:
    linear-gradient(var(--color-border-soft) 1px, transparent 1px),
    linear-gradient(90deg, var(--color-border-soft) 1px, transparent 1px);
  background-size: 48px 48px;
  mask-image: radial-gradient(ellipse 90% 80% at 50% 0%, black 30%, transparent 75%);
  -webkit-mask-image: radial-gradient(ellipse 90% 80% at 50% 0%, black 30%, transparent 75%);
}
.ao-hero__bg { display: none; }
.ao-hero > .ao-container { position: relative; }