/* ============================================================
   page-scope.css — Styles specific to scope.html
   ============================================================ */

/* ── Two-column layout for materials sections ─────────────── */
.scope-hero-subtitle {
  font-size: 1rem;
  margin-top: 15px;
  opacity: 0.9;
}

.scope-clusters-section {
  background-color: #f8f9fa;
}

.materials-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 40px;
  margin-bottom: 60px;
}

.download-category {
  margin-bottom: 0;
}

.category-title {
  font-size: 2rem;
  font-weight: 600;
  color: var(--dark-teal);
  margin-bottom: 30px;
  padding-bottom: 10px;
  border-bottom: 3px solid var(--dark-teal);
}

/* ── Collapsible older slides ─────────────────────────────── */
.toggle-older-slides {
  width: 100%;
  background: linear-gradient(to right, #5e239d, #b70468) !important;
  color: white !important;
  padding: 15px 30px;
  border: none !important;
  border-radius: 12px;
  font-weight: 600;
  font-size: 1.1rem;
  cursor: pointer;
  margin: 25px 0 20px 0;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 12px;
  transition: all 0.3s ease;
  box-shadow: 0 4px 15px rgba(139, 92, 246, 0.3);
}

.toggle-older-slides:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(139, 92, 246, 0.4);
}

.toggle-older-slides .arrow {
  transition: transform 0.3s ease;
  font-size: 1.3rem;
  font-weight: bold;
}

.toggle-older-slides.expanded .arrow {
  transform: rotate(180deg);
}

.older-slides-container {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.5s ease-out;
  margin-top: 0;
}

.older-slides-container.expanded {
  max-height: 5000px;
  transition: max-height 0.8s ease-in;
  margin-top: 20px;
}

/* ── Responsive ───────────────────────────────────────────── */
@media (max-width: 992px) {
  .materials-grid {
    grid-template-columns: 1fr;
  }
}