/* ============================================================
   SECTION HEADING — "Extension Summary", "Birthday Celebration
   Setup", "Room Selection", "Payment Details", etc.

   USAGE:
   <div class="section-heading-group">
     <h2 class="section-heading">Extension Summary</h2>
     <div class="decorative-rule">
       <span class="rule-line"></span>
       <span class="rule-diamond"></span>
       <span class="rule-line"></span>
     </div>
   </div>

   RULES:
   - NO emojis. Ever. The decorative rule IS the accent.
   - NO bold. Weight is 500 (medium) — present but not shouting.
   - NO large font. 13px — elegant, not demanding.
   ============================================================ */

.section-heading {
  font-family: var(--font-display);
  font-size: 13px;
  font-weight: 500;
  color: var(--color-text-secondary);
  text-transform: uppercase;
  letter-spacing: 0.22em;
  text-align: center;
  margin: 0 0 8px 0;
}

/* ── Decorative rule: accent gradient lines + diamond ── */
.decorative-rule {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  margin-bottom: 32px;
}

.rule-line {
  display: block;
  width: 50px;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--color-accent), transparent);
}

.rule-diamond {
  display: block;
  width: 5px;
  height: 5px;
  background: var(--color-accent);
  transform: rotate(45deg);
  flex-shrink: 0;
}