/* Phase 10D Batch 4 - Catalog & Search shared stylesheet.
   Loaded by /courses, /courses/{slug}, /search only (via setPageCss('catalog')).
   Site-wide tokens (--navy, --orange, fonts, shadows, .container) live in common.css. */

/* ============================================================
   HERO GRADIENTS
============================================================ */

.catalog-hero,
.category-hero,
.search-hero {
  background: linear-gradient(135deg, var(--navy), var(--navy-light));
  color: #fff;
  position: relative;
  overflow: hidden;
}
.catalog-hero::after,
.category-hero::after,
.search-hero::after {
  content: "";
  position: absolute;
  right: -10%;
  top: -20%;
  width: 50%;
  height: 200%;
  background: radial-gradient(ellipse 60% 50% at 50% 50%, rgba(232,100,44,0.08) 0%, transparent 70%);
  pointer-events: none;
}
.catalog-hero { padding: 56px 0 40px; }
.category-hero,
.search-hero { padding: 48px 0 40px; }

.catalog-hero-content,
.category-hero-content,
.search-hero-content { position: relative; z-index: 1; text-align: left; }

.catalog-hero h1 {
  font-family: var(--font-display); font-weight: 800; letter-spacing: -0.02em;
  font-size: clamp(1.75rem, 3.4vw, 2.3rem); margin-bottom: 10px;
}
.catalog-hero p {
  color: rgba(255,255,255,0.7); font-size: 1rem;
  margin-bottom: 24px; max-width: 580px;
}

.category-breadcrumb {
  font-family: var(--font-display); font-size: 0.85rem;
  color: rgba(255,255,255,0.55);
  margin-bottom: 14px;
  display: inline-flex; align-items: center; gap: 6px;
  transition: color 0.15s;
}
.category-breadcrumb:hover { color: #fff; }
.category-breadcrumb svg { width: 14px; height: 14px; }

.category-hero h1 {
  font-family: var(--font-display); font-weight: 800; letter-spacing: -0.02em;
  font-size: clamp(1.75rem, 3.4vw, 2.3rem); margin-bottom: 10px;
}
.category-hero-desc {
  color: rgba(255,255,255,0.7); font-size: 1rem;
  margin-bottom: 20px; max-width: 720px; line-height: 1.6;
}
.category-hero-meta {
  display: flex; gap: 24px; flex-wrap: wrap;
  font-size: 0.88rem; color: rgba(255,255,255,0.6);
}
.category-hero-meta span { display: inline-flex; align-items: center; gap: 6px; }
.category-hero-meta strong { color: #fff; font-weight: 700; font-family: var(--font-display); }
.category-hero-meta svg { width: 16px; height: 16px; }

.search-hero h1 {
  font-family: var(--font-display); font-weight: 800; letter-spacing: -0.02em;
  font-size: clamp(1.5rem, 3vw, 2rem); margin-bottom: 6px;
}
.search-hero p {
  color: rgba(255,255,255,0.65); font-size: 0.95rem; margin-bottom: 20px;
}

/* Hero search forms (catalog + search pages) */
.catalog-search-form,
.search-form {
  display: flex; gap: 0;
  background: #fff; border-radius: 12px; padding: 6px;
  box-shadow: var(--shadow-lg);
}
.catalog-search-form { max-width: 640px; }
.search-form { max-width: 700px; }

.catalog-search-form input,
.search-form input {
  flex: 1; border: none; outline: none;
  background: transparent;
  font-family: var(--font-body); font-size: 1rem;
  padding: 12px 16px; color: var(--gray-800);
  min-width: 0;
}
.catalog-search-form button,
.search-form button {
  font-family: var(--font-display); font-weight: 700; font-size: 0.95rem;
  padding: 0 22px;
  background: var(--orange); color: #fff;
  border-radius: 8px;
  transition: background 0.2s;
  display: flex; align-items: center; gap: 8px;
  flex-shrink: 0;
}
.search-form button { padding: 0 24px; }
.catalog-search-form button:hover,
.search-form button:hover { background: var(--orange-hover); }
.catalog-search-form button svg,
.search-form button svg { width: 16px; height: 16px; }

/* ============================================================
   2-COLUMN LAYOUT (sidebar + results)
============================================================ */

.catalog-page,
.category-page,
.search-page { padding: 32px 0 80px; }

.catalog-layout,
.category-layout,
.search-layout {
  display: grid;
  grid-template-columns: 260px 1fr;
  gap: 32px;
  align-items: start;
}

/* ============================================================
   FILTER SIDEBAR
============================================================ */

.filter-sidebar {
  background: #fff;
  border: 1px solid var(--gray-100);
  border-radius: var(--radius-lg);
  padding: 24px;
  position: sticky; top: 96px;
}
.filter-sidebar-header {
  display: flex; justify-content: space-between; align-items: center;
  margin-bottom: 20px;
}
.filter-sidebar-header h2 {
  font-family: var(--font-display);
  font-size: 1rem; font-weight: 800;
  color: var(--navy); letter-spacing: -0.01em;
}
.btn-clear-filters {
  font-family: var(--font-display);
  font-size: 0.8rem; font-weight: 600;
  color: var(--orange);
  padding: 0; background: none; border: none; cursor: pointer;
}
.btn-clear-filters:hover { text-decoration: underline; }

.filter-group {
  border-bottom: 1px solid var(--gray-100);
  padding-bottom: 16px; margin-bottom: 16px;
}
.filter-group:last-child { border-bottom: none; padding-bottom: 0; margin-bottom: 0; }
.filter-group h3 {
  font-family: var(--font-display);
  font-size: 0.82rem; font-weight: 700; color: var(--navy);
  text-transform: uppercase; letter-spacing: 0.05em;
  margin-bottom: 12px;
}
.filter-option {
  display: flex; align-items: center; gap: 10px;
  padding: 7px 0; font-size: 0.88rem;
  color: var(--gray-800); cursor: pointer;
  transition: color 0.15s;
}
.filter-option:hover { color: var(--orange); }
.filter-option input[type="checkbox"],
.filter-option input[type="radio"] {
  width: 16px; height: 16px;
  accent-color: var(--orange);
  cursor: pointer; flex-shrink: 0;
}
.filter-option-count {
  margin-left: auto;
  color: var(--gray-400);
  font-size: 0.78rem;
  font-family: var(--font-display); font-weight: 500;
}
.filter-range {
  display: flex; gap: 8px; align-items: center; margin-top: 6px;
}
.filter-range input {
  flex: 1; min-width: 0;
  font-family: var(--font-body); font-size: 0.85rem;
  padding: 7px 10px;
  border: 1.5px solid var(--gray-200);
  border-radius: 6px;
}
.filter-range input:focus {
  outline: none;
  border-color: var(--orange);
  box-shadow: 0 0 0 2px rgba(232,100,44,0.12);
}
.filter-range span { font-size: 0.82rem; color: var(--gray-400); }

/* Sidebar switch-category block (category page only) */
.sidebar-switch {
  background: var(--off-white);
  border-radius: 10px;
  padding: 14px;
  margin-top: 16px;
}
.sidebar-switch h3 {
  font-family: var(--font-display);
  font-size: 0.78rem; font-weight: 700; color: var(--navy);
  text-transform: uppercase; letter-spacing: 0.05em;
  margin-bottom: 10px;
}
.sidebar-switch ul { list-style: none; margin: 0; padding: 0; }
.sidebar-switch li { list-style: none; }
.sidebar-switch a {
  display: block; padding: 5px 0;
  font-size: 0.85rem; color: var(--slate);
  transition: color 0.15s;
}
.sidebar-switch a:hover { color: var(--orange); }
.sidebar-switch a.active { color: var(--orange); font-weight: 700; }

/* Mobile-only filters toggle */
.btn-mobile-filters {
  display: none;
  align-items: center; gap: 8px;
  padding: 10px 16px;
  background: #fff;
  border: 1.5px solid var(--gray-200);
  border-radius: 10px;
  font-family: var(--font-display);
  font-weight: 600; font-size: 0.88rem; color: var(--navy);
  margin-bottom: 16px;
  cursor: pointer;
}
.btn-mobile-filters svg { width: 16px; height: 16px; }
.btn-mobile-filters .filter-badge {
  background: var(--orange); color: #fff;
  font-size: 0.72rem; font-weight: 700;
  padding: 1px 6px; border-radius: 8px;
  margin-left: 4px;
}

/* ============================================================
   RESULTS AREA + HEADER + SORT + CHIPS
============================================================ */

.results-area { min-width: 0; scroll-margin-top: 96px; }

.results-header {
  display: flex; justify-content: space-between; align-items: center;
  margin-bottom: 20px;
  flex-wrap: wrap; gap: 12px;
}
.results-count { font-size: 0.95rem; color: var(--gray-600); }
.results-count strong { color: var(--navy); font-weight: 700; }

.results-sort {
  display: flex; align-items: center; gap: 8px;
  font-size: 0.88rem; color: var(--gray-600);
}
.results-sort select {
  font-family: var(--font-body); font-size: 0.88rem;
  padding: 8px 32px 8px 12px;
  border: 1.5px solid var(--gray-200);
  border-radius: 8px;
  background: #fff; color: var(--navy);
  font-weight: 500; cursor: pointer;
  appearance: none; -webkit-appearance: none;
  background-image: url("data:image/svg+xml;charset=UTF-8,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%235a6270' stroke-width='2'%3e%3cpolyline points='6 9 12 15 18 9'/%3e%3c/svg%3e");
  background-repeat: no-repeat;
  background-position: right 10px center;
  background-size: 14px;
}
.results-sort select:focus { outline: none; border-color: var(--orange); }

.filter-chips {
  display: flex; gap: 8px; flex-wrap: wrap; margin-bottom: 20px;
}
.filter-chip {
  display: inline-flex; align-items: center; gap: 6px;
  padding: 6px 8px 6px 12px;
  background: var(--orange-light);
  border: 1px solid rgba(232,100,44,0.2);
  border-radius: 16px;
  font-family: var(--font-display);
  font-size: 0.82rem; font-weight: 600;
  color: var(--orange);
  text-decoration: none;
}
.filter-chip .chip-remove {
  width: 18px; height: 18px;
  border-radius: 50%;
  display: flex; align-items: center; justify-content: center;
  background: rgba(232,100,44,0.15);
  color: var(--orange);
  transition: all 0.15s;
}
.filter-chip:hover .chip-remove { background: var(--orange); color: #fff; }
.filter-chip .chip-remove svg { width: 10px; height: 10px; }

/* ============================================================
   COURSE LIST ROWS (/courses + /courses/{slug})
============================================================ */

.course-list {
  display: flex; flex-direction: column; gap: 1px;
  background: var(--gray-100);
  border-radius: var(--radius);
  overflow: hidden;
  border: 1px solid var(--gray-100);
}
.course-row {
  display: grid;
  grid-template-columns: 36px 1fr 110px 90px 100px;
  gap: 16px; align-items: center;
  padding: 14px 18px;
  background: #fff;
  transition: background 0.12s;
}
.course-row:hover { background: var(--off-white); }
.course-row-thumb {
  width: 36px; height: 36px;
  border-radius: 8px;
  background: var(--orange-light);
  display: flex; align-items: center; justify-content: center;
  flex-shrink: 0;
}
.course-row-thumb svg {
  width: 20px; height: 20px;
  stroke: var(--orange);
}
.course-row-main {
  min-width: 0;
  display: flex; flex-direction: column; gap: 3px;
}
.course-row-title {
  font-family: var(--font-display);
  font-size: 0.95rem; font-weight: 700;
  color: var(--navy); line-height: 1.3;
  letter-spacing: -0.005em;
  overflow: hidden; text-overflow: ellipsis; white-space: nowrap;
}
.course-row-title a { color: var(--navy); transition: color 0.15s; }
.course-row-title a:hover { color: var(--orange); }
.course-row-meta {
  display: flex; gap: 12px;
  font-size: 0.78rem; color: var(--gray-600);
}
.course-row-meta span {
  display: inline-flex; align-items: center; gap: 4px;
  white-space: nowrap;
}
.course-row-meta svg { width: 12px; height: 12px; }
.course-row-duration {
  font-family: var(--font-display);
  font-size: 0.82rem; font-weight: 600;
  color: var(--gray-600); text-align: right;
  white-space: nowrap;
}
.course-row-price {
  font-family: var(--font-display);
  font-size: 1.05rem; font-weight: 800;
  color: var(--navy); text-align: right;
  letter-spacing: -0.01em;
}
.course-row-action { display: flex; justify-content: flex-end; }
.course-row-action form.add-to-cart-form { margin: 0; }
.btn-add-cart {
  font-family: var(--font-display);
  font-weight: 700; font-size: 0.82rem;
  padding: 8px 14px;
  background: var(--orange); color: #fff;
  border-radius: 8px;
  transition: all 0.15s;
  display: inline-flex; align-items: center; gap: 5px;
  white-space: nowrap;
  cursor: pointer; border: none;
}
.btn-add-cart:hover {
  background: var(--orange-hover);
  transform: translateY(-1px);
  box-shadow: var(--shadow-sm);
}
.btn-add-cart:disabled {
  opacity: 0.7; cursor: default; transform: none;
}
.btn-add-cart.is-added {
  background: var(--status-green);
}
.btn-add-cart svg { width: 13px; height: 13px; }

/* ============================================================
   GROUPED CATEGORY SECTIONS (/courses only)
============================================================ */

.category-section { margin-bottom: 40px; scroll-margin-top: 140px; }
.category-section:last-child { margin-bottom: 0; }
.category-section-header {
  display: flex; justify-content: space-between; align-items: flex-end;
  gap: 16px; margin-bottom: 16px;
  padding-bottom: 12px;
  border-bottom: 2px solid var(--gray-100);
}
.category-section-title {
  font-family: var(--font-display);
  font-size: 1.35rem; font-weight: 800;
  color: var(--navy); letter-spacing: -0.02em; line-height: 1.15;
}
.category-section-desc {
  font-size: 0.88rem; color: var(--gray-600);
  margin-top: 4px; max-width: 600px;
}
.category-section-count {
  font-family: var(--font-display);
  font-size: 0.85rem; font-weight: 600;
  color: var(--gray-400);
  white-space: nowrap;
}

.catalog-empty {
  background: #fff; border: 1px solid var(--gray-100);
  border-radius: var(--radius-lg); padding: 40px 24px;
  text-align: center; color: var(--gray-600); font-size: 0.95rem;
}
.catalog-empty a { color: var(--orange); font-weight: 600; }

/* ============================================================
   RELATED BUNDLE STRIP (/courses/{slug})
============================================================ */

.related-bundle-strip {
  margin-top: 48px;
  background: linear-gradient(135deg, var(--teal), #157d72);
  border-radius: var(--radius-lg);
  padding: 28px;
  color: #fff;
  display: flex; align-items: center; justify-content: space-between;
  gap: 24px; flex-wrap: wrap;
}
.related-bundle-content { flex: 1; min-width: 280px; }
.related-bundle-eyebrow {
  font-family: var(--font-display);
  font-size: 0.75rem; font-weight: 700;
  text-transform: uppercase; letter-spacing: 0.08em;
  color: rgba(255,255,255,0.65);
  margin-bottom: 6px;
}
.related-bundle-title {
  font-family: var(--font-display);
  font-size: 1.35rem; font-weight: 800;
  letter-spacing: -0.015em;
  margin-bottom: 6px;
}
.related-bundle-desc {
  font-size: 0.92rem; color: rgba(255,255,255,0.8); line-height: 1.5;
}
.related-bundle-cta {
  display: inline-flex; align-items: center; gap: 6px;
  padding: 12px 22px;
  background: #fff; color: var(--teal);
  font-family: var(--font-display); font-weight: 700; font-size: 0.9rem;
  border-radius: 10px;
  transition: all 0.2s;
  white-space: nowrap;
}
.related-bundle-cta:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(0,0,0,0.15);
}
.related-bundle-cta svg { width: 14px; height: 14px; }

/* ============================================================
   RESULT CARDS (/search State A)
============================================================ */

.results-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 20px;
}
.result-card {
  background: #fff;
  border: 1px solid var(--gray-100);
  border-radius: var(--radius-lg);
  padding: 20px;
  transition: all 0.2s;
  display: flex; flex-direction: column; gap: 12px;
  min-height: 220px;
  color: inherit;
}
.result-card:hover {
  border-color: var(--orange);
  box-shadow: var(--shadow-md);
  transform: translateY(-2px);
}
.result-card.bundle-card:hover { border-color: var(--teal); }

.result-card-top { display: flex; gap: 14px; align-items: flex-start; }
.result-card-thumb {
  width: 64px; height: 64px;
  border-radius: 10px;
  background: var(--orange-light);
  display: flex; align-items: center; justify-content: center;
  flex-shrink: 0;
}
.result-card-thumb svg { width: 32px; height: 32px; stroke: var(--orange); }
.bundle-card .result-card-thumb { background: var(--teal-light); }
.bundle-card .result-card-thumb svg { stroke: var(--teal); }

.result-card-header { flex: 1; min-width: 0; }
.result-card-badges {
  display: flex; gap: 6px; margin-bottom: 6px; flex-wrap: wrap;
}
.result-badge {
  display: inline-flex; align-items: center;
  padding: 2px 10px; border-radius: 12px;
  font-family: var(--font-display);
  font-size: 0.7rem; font-weight: 700;
  text-transform: uppercase; letter-spacing: 0.04em;
}
.result-badge-bundle { background: var(--teal-light); color: var(--teal); }
.result-badge-course { background: var(--orange-light); color: var(--orange); }
.result-badge-category {
  background: var(--off-white);
  color: var(--gray-600);
  border: 1px solid var(--gray-100);
}
.result-card-title {
  font-family: var(--font-display);
  font-size: 1rem; font-weight: 700;
  color: var(--navy); line-height: 1.3;
  letter-spacing: -0.01em;
  transition: color 0.2s;
}
.result-card:hover .result-card-title { color: var(--orange); }
.result-card.bundle-card:hover .result-card-title { color: var(--teal); }
.result-card-desc {
  font-size: 0.85rem; color: var(--gray-600);
  line-height: 1.5; flex: 1;
}

.result-card-meta {
  display: flex; gap: 14px; flex-wrap: wrap;
  font-size: 0.78rem; color: var(--gray-600);
  padding-top: 10px;
  border-top: 1px solid var(--gray-100);
}
.result-card-meta span { display: inline-flex; align-items: center; gap: 4px; }
.result-card-meta svg { width: 13px; height: 13px; }

.result-card-footer {
  display: flex; justify-content: space-between; align-items: center;
  gap: 12px; padding-top: 8px; margin-top: auto;
}
.result-card-price {
  font-family: var(--font-display);
  font-size: 1.2rem; font-weight: 800;
  color: var(--navy);
  letter-spacing: -0.01em;
}
.result-card-price .price-unit {
  font-family: var(--font-body);
  font-size: 0.75rem; font-weight: 400;
  color: var(--gray-600); margin-left: 2px;
}
.bundle-card .result-card-price { color: var(--teal); }
.btn-view {
  font-family: var(--font-display);
  font-weight: 600; font-size: 0.85rem;
  padding: 8px 14px;
  color: var(--orange);
  border-radius: 6px;
  transition: all 0.2s;
  display: inline-flex; align-items: center; gap: 4px;
  border: 1px solid transparent;
}
.result-card:hover .btn-view {
  background: var(--orange-light);
  border-color: var(--orange);
}
.btn-view svg { width: 14px; height: 14px; transition: transform 0.2s; }
.result-card:hover .btn-view svg { transform: translateX(2px); }
.bundle-card .btn-view { color: var(--teal); }
.bundle-card:hover .btn-view { background: var(--teal-light); border-color: var(--teal); }

/* Show more results button */
.results-show-more { display: flex; justify-content: center; margin-top: 32px; }
.btn-show-more {
  font-family: var(--font-display);
  font-weight: 600; font-size: 0.95rem;
  padding: 13px 28px;
  border: 2px solid var(--navy);
  border-radius: 10px;
  color: var(--navy);
  text-decoration: none;
  transition: all 0.2s;
  background: transparent;
  cursor: pointer;
}
.btn-show-more:hover { background: var(--navy); color: #fff; }

/* ============================================================
   SEARCH EMPTY STATE (/search State B)
============================================================ */

.search-empty {
  background: #fff;
  border: 1px solid var(--gray-100);
  border-radius: var(--radius-lg);
  padding: 60px 40px;
  text-align: center;
}
.search-empty-icon {
  width: 96px; height: 96px;
  background: var(--off-white);
  border-radius: 50%;
  display: flex; align-items: center; justify-content: center;
  margin: 0 auto 20px;
}
.search-empty-icon svg { width: 44px; height: 44px; stroke: var(--gray-400); }
.search-empty h2 {
  font-family: var(--font-display);
  font-size: 1.4rem; font-weight: 800;
  color: var(--navy);
  margin-bottom: 10px;
  letter-spacing: -0.01em;
}
.search-empty p {
  font-size: 0.95rem; color: var(--gray-600);
  margin-bottom: 24px;
  max-width: 480px;
  margin-left: auto; margin-right: auto;
  line-height: 1.6;
}
.search-empty-suggestions {
  margin-top: 24px; text-align: left;
  max-width: 520px;
  margin-left: auto; margin-right: auto;
}
.search-empty-suggestions h3 {
  font-family: var(--font-display);
  font-size: 0.8rem; font-weight: 700;
  color: var(--navy);
  text-transform: uppercase; letter-spacing: 0.05em;
  margin-bottom: 12px; text-align: center;
}
.search-empty-links {
  display: flex; flex-wrap: wrap; gap: 8px;
  justify-content: center;
}
.search-empty-link {
  padding: 6px 14px;
  background: var(--off-white);
  border: 1px solid var(--gray-100);
  border-radius: 20px;
  font-family: var(--font-display);
  font-size: 0.85rem; font-weight: 600;
  color: var(--navy);
  transition: all 0.2s;
  text-decoration: none;
}
.search-empty-link:hover {
  background: var(--orange-light);
  border-color: var(--orange);
  color: var(--orange);
}
.search-empty-help {
  margin-top: 32px;
  font-size: 0.88rem;
}
.search-empty-help a { color: var(--orange); font-weight: 600; }

/* ============================================================
   SEARCH LANDING (/search State C)
============================================================ */

.search-landing h2 {
  font-family: var(--font-display);
  font-size: 1.2rem; font-weight: 800;
  color: var(--navy);
  margin-bottom: 4px;
  letter-spacing: -0.01em;
}
.search-landing .search-landing-sub {
  font-size: 0.9rem; color: var(--gray-600);
  margin-bottom: 12px;
}
.popular-searches,
.category-tiles {
  background: #fff;
  border: 1px solid var(--gray-100);
  border-radius: var(--radius-lg);
  padding: 28px;
}
.popular-searches { margin-bottom: 24px; }
.popular-searches-row {
  display: flex; flex-wrap: wrap; gap: 8px;
  margin-top: 12px;
}
.popular-search-pill {
  padding: 8px 14px;
  background: var(--off-white);
  border: 1px solid var(--gray-100);
  border-radius: 20px;
  font-family: var(--font-display);
  font-size: 0.88rem; font-weight: 600;
  color: var(--slate);
  transition: all 0.2s;
  display: inline-flex; align-items: center; gap: 6px;
  text-decoration: none;
}
.popular-search-pill:hover {
  background: var(--orange-light);
  border-color: var(--orange);
  color: var(--orange);
}
.popular-search-pill svg { width: 14px; height: 14px; }

.category-tiles-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 16px;
  margin-top: 12px;
}
.category-tile {
  padding: 20px;
  border: 1px solid var(--gray-100);
  border-radius: 12px;
  transition: all 0.2s;
  text-align: center;
  display: flex; flex-direction: column; align-items: center; gap: 10px;
  text-decoration: none;
}
.category-tile:hover {
  border-color: var(--orange);
  background: var(--orange-light);
  transform: translateY(-2px);
}
.category-tile svg { width: 28px; height: 28px; stroke: var(--orange); }
.category-tile strong {
  font-family: var(--font-display);
  font-weight: 700; font-size: 0.88rem;
  color: var(--navy); line-height: 1.2;
}
.category-tile span {
  font-size: 0.75rem; color: var(--gray-600);
  font-family: var(--font-display); font-weight: 500;
}

/* ============================================================
   FLAT VIEW toggle (/courses only)
============================================================ */

.catalog-flat .category-section { display: none; }
.catalog-flat #flatResults { display: block; }
#flatResults { display: none; }
#flatResults .course-list { margin-bottom: 0; }

/* ============================================================
   RESPONSIVE BREAKPOINTS
============================================================ */

@media (max-width: 1024px) {
  .catalog-layout,
  .category-layout,
  .search-layout {
    grid-template-columns: 220px 1fr;
    gap: 24px;
  }
  .category-tiles-grid { grid-template-columns: repeat(3, 1fr); }
}

@media (max-width: 900px) {
  .catalog-layout,
  .category-layout,
  .search-layout {
    grid-template-columns: 1fr;
  }
  .filter-sidebar { position: static; display: none; }
  .filter-sidebar.open { display: block; }
  .btn-mobile-filters { display: inline-flex; }
  .results-grid { grid-template-columns: 1fr; }
  .course-row { grid-template-columns: 36px 1fr 80px 90px; }
  .course-row-duration { display: none; }
  .category-section-header {
    flex-direction: column; align-items: flex-start; gap: 8px;
  }
}

@media (max-width: 768px) {
  .catalog-hero { padding: 40px 0 28px; }
  .category-hero { padding: 32px 0 28px; }
  .search-hero { padding: 32px 0 28px; }
  .catalog-search-form,
  .search-form {
    flex-direction: column; gap: 6px; padding: 8px;
  }
  .catalog-search-form button,
  .search-form button {
    width: 100%; padding: 12px; justify-content: center;
  }
  .category-section-title { font-size: 1.15rem; }
  .category-tiles-grid { grid-template-columns: repeat(2, 1fr); }
  .search-empty { padding: 40px 24px; }

  .course-row {
    grid-template-columns: 32px 1fr auto;
    grid-template-areas: "thumb main price" "thumb meta  action";
    row-gap: 8px;
    padding: 12px 14px;
  }
  .course-row-thumb { grid-area: thumb; width: 32px; height: 32px; align-self: start; }
  .course-row-main { grid-area: main; }
  .course-row-meta { grid-area: meta; margin-left: 0; }
  .course-row-duration { display: none; }
  .course-row-price { grid-area: price; text-align: right; font-size: 1rem; }
  .course-row-action { grid-area: action; justify-self: end; }

  .related-bundle-strip {
    flex-direction: column; align-items: flex-start; padding: 24px;
  }
}

@media (max-width: 480px) {
  .course-row-meta { font-size: 0.72rem; gap: 8px; }
  .category-tiles-grid { grid-template-columns: 1fr; }
}