/* ── SUPPLEMENTAL CALLOUT (puzzle.php) ─────────────────────────
   Append this block to the bottom of /assets/style.css
───────────────────────────────────────────────────────────── */

.supplemental-callout {
  display: flex;
  align-items: flex-start;
  gap: 20px;
  background: var(--teal-lt);
  border: 1px solid #b3ddd7;
  border-left: 4px solid var(--teal);
  border-radius: 0 4px 4px 0;
  padding: 24px 28px;
  margin: 40px 0;
  flex-wrap: wrap;
}

.supplemental-callout-icon {
  color: var(--teal);
  flex-shrink: 0;
  margin-top: 2px;
}

.supplemental-callout-body {
  flex: 1;
  min-width: 200px;
}

.supplemental-callout-label {
  font-family: var(--mono);
  font-size: 0.6rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--teal);
  margin-bottom: 6px;
}

.supplemental-callout-title {
  font-family: var(--serif);
  font-size: 1.05rem;
  font-weight: 700;
  letter-spacing: -0.02em;
  color: var(--ink);
  margin-bottom: 8px;
  line-height: 1.3;
}

.supplemental-callout-desc {
  font-size: 0.85rem;
  color: var(--muted);
  line-height: 1.65;
  margin: 0;
}

.supplemental-callout-btn {
  display: inline-flex;
  align-items: center;
  align-self: center;
  white-space: nowrap;
  font-family: var(--sans);
  font-size: 0.78rem;
  font-weight: 500;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  text-decoration: none;
  color: var(--white);
  background: var(--teal);
  padding: 11px 22px;
  border-radius: 2px;
  transition: background 0.2s var(--ease), transform 0.2s var(--ease);
  flex-shrink: 0;
}

.supplemental-callout-btn:hover {
  background: #236358;
  transform: translateY(-1px);
}

@media (max-width: 640px) {
  .supplemental-callout {
    flex-direction: column;
    gap: 16px;
  }
  .supplemental-callout-btn {
    align-self: flex-start;
  }
}