/* ============================================================
   Awall surface stylesheet: chrome.css
   Split from styles.css (F1, issue #186) — NO rule changes.
   Owns: page header + section headings (shared)
   Concatenating every surfaces/*.css in base.html <link> order
   reproduces the original styles.css byte-for-byte.
   ============================================================ */
.page-header {
  margin-bottom: var(--space-8);
}

.page-title {
  font-size: var(--font-size-2xl);
  font-weight: 700;
  color: var(--color-text-heading);
  letter-spacing: -0.02em;
  line-height: 1.2;
}

.page-subtitle {
  margin-top: var(--space-2);
  font-size: var(--font-size-sm);
  color: var(--color-text-muted);
}

/* Mono uppercase eyebrow — pairs with page-title or section-title for landing-aligned voice. */
.eyebrow {
  display: block;
  font-family: var(--font-mono);
  font-size: var(--font-size-xs);
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--color-primary);
  margin-bottom: var(--space-2);
}

/* ---------------------------------------------------------
   8. Section
   --------------------------------------------------------- */
.section {
  margin-top: var(--space-8);
}

.section-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: var(--space-4);
}

.section-title {
  font-size: var(--font-size-lg);
  font-weight: 600;
  color: var(--color-text-heading);
}