/* =============================================
   CATEGORY PAGE CSS
   ============================================= */

.category-page {
  padding-top: calc(var(--header-height) + 40px);
  min-height: 100vh;
}

/* ── Page Header ── */
.page-hero {
  background: var(--bg-secondary);
  border-bottom: 1px solid var(--border);
  padding: 48px 0 40px;
}

.page-hero-inner {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: 24px;
  flex-wrap: wrap;
}

.page-hero-title {
  font-size: clamp(1.5rem, 3vw, 2.25rem);
  font-weight: 700;
  margin-bottom: 8px;
}

.page-hero-subtitle {
  color: var(--muted);
  font-size: 0.9375rem;
}

/* ── Layout: Sidebar + Main ── */
.category-layout {
  display: grid;
  grid-template-columns: var(--sidebar-width) 1fr;
  gap: 32px;
  align-items: start;
  padding: 40px 0 80px;
}

/* ── Sidebar ── */
.sidebar {
  position: sticky;
  top: calc(var(--header-height) + 24px);
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  overflow: hidden;
}

.sidebar-section {
  padding: 20px;
  border-bottom: 1px solid var(--border);
}

.sidebar-section:last-child { border-bottom: none; }

.sidebar-title {
  font-size: 0.8125rem;
  font-weight: 600;
  color: var(--text-strong);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  margin-bottom: 14px;
}

/* Filter Checkboxes */
.filter-list {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.filter-item {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 7px 10px;
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition: var(--transition);
  font-size: 0.875rem;
  color: var(--muted);
}

.filter-item:hover {
  background: rgba(255,255,255,0.04);
  color: var(--text);
}

.filter-item.active {
  background: var(--primary-light);
  color: var(--primary);
}

.filter-item input[type="checkbox"],
.filter-item input[type="radio"] {
  width: 16px;
  height: 16px;
  accent-color: var(--primary);
  cursor: pointer;
  flex-shrink: 0;
}

.filter-count {
  margin-left: auto;
  font-size: 0.75rem;
  color: var(--muted-light);
  background: rgba(255,255,255,0.05);
  padding: 1px 7px;
  border-radius: var(--radius-full);
}

.filter-clear {
  width: 100%;
  margin-top: 12px;
  padding: 8px;
  font-size: 0.8125rem;
  color: var(--muted);
  background: none;
  border: none;
  cursor: pointer;
  border-radius: var(--radius-sm);
  transition: var(--transition);
  text-align: left;
}

.filter-clear:hover { color: var(--danger); background: rgba(239,68,68,0.08); }

/* ── Main Content ── */
.main-content {}

/* Toolbar: Sort + Results count */
.tools-toolbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  margin-bottom: 24px;
  flex-wrap: wrap;
}

.tools-count {
  font-size: 0.9rem;
  color: var(--muted);
}

.tools-count strong { color: var(--text-strong); }

.sort-group {
  display: flex;
  align-items: center;
  gap: 8px;
}

.sort-label {
  font-size: 0.875rem;
  color: var(--muted);
  white-space: nowrap;
}

.sort-select {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  color: var(--text);
  padding: 7px 12px;
  font-size: 0.875rem;
  outline: none;
  cursor: pointer;
  transition: var(--transition);
}

.sort-select:focus { border-color: var(--primary); }

/* Active Filters */
.active-filters {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 20px;
}

.active-filter-chip {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 4px 12px;
  background: var(--primary-light);
  border: 1px solid rgba(99,102,241,0.25);
  border-radius: var(--radius-full);
  font-size: 0.8rem;
  color: var(--primary);
  font-weight: 500;
}

.active-filter-chip button {
  background: none;
  border: none;
  color: var(--primary);
  cursor: pointer;
  display: flex;
  align-items: center;
  padding: 0;
  opacity: 0.7;
  transition: var(--transition);
}

.active-filter-chip button:hover { opacity: 1; }

/* Grid View Toggle */
.view-toggle {
  display: flex;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  overflow: hidden;
}

.view-btn {
  padding: 7px 10px;
  background: none;
  border: none;
  color: var(--muted);
  cursor: pointer;
  transition: var(--transition);
  display: flex;
  align-items: center;
}

.view-btn.active, .view-btn:hover {
  background: var(--primary-light);
  color: var(--primary);
}

/* Tool Grid */
.tools-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 20px;
}

.tools-grid.list-view {
  grid-template-columns: 1fr;
}

.tools-grid.list-view .tool-card {
  flex-direction: row;
  align-items: center;
}

/* Empty State */
.empty-state {
  grid-column: 1 / -1;
  text-align: center;
  padding: 80px 32px;
}

.empty-icon {
  font-size: 3.5rem;
  margin-bottom: 16px;
}

.empty-title {
  font-size: 1.25rem;
  font-weight: 600;
  margin-bottom: 8px;
}

/* Pagination */
.pagination {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  margin-top: 40px;
}

.page-btn {
  width: 36px;
  height: 36px;
  border-radius: var(--radius-sm);
  background: var(--card);
  border: 1px solid var(--border);
  color: var(--muted);
  font-size: 0.875rem;
  font-weight: 500;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: var(--transition);
}

.page-btn:hover { border-color: var(--primary); color: var(--primary); }
.page-btn.active { background: var(--primary); color: #fff; border-color: var(--primary); }
.page-btn:disabled { opacity: 0.4; cursor: default; }

/* Mobile Sidebar Overlay */
.sidebar-overlay {
  display: none;
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,0.6);
  z-index: 200;
  opacity: 0;
  transition: opacity 0.3s;
}

.sidebar-overlay.open { opacity: 1; }

.filter-toggle-btn {
  display: none;
  align-items: center;
  gap: 8px;
}

@media (max-width: 1024px) {
  .category-layout {
    grid-template-columns: 1fr;
  }
  .sidebar {
    position: fixed;
    top: 0;
    left: -100%;
    bottom: 0;
    width: var(--sidebar-width);
    z-index: 300;
    border-radius: 0;
    overflow-y: auto;
    transition: left 0.3s ease;
  }
  .sidebar.open { left: 0; }
  .sidebar-overlay { display: block; pointer-events: none; }
  .sidebar-overlay.open { pointer-events: all; }
  .filter-toggle-btn { display: flex; }
}