/* ==========================================================================
   GOLDEN SEASON - WEB RESOURCE LIBRARY
   Top-Level Sidebar Box Accordion Collapse System & Event Lock Fix
   Color Theme: Ocean Blue Accent (#0289C2)
   Fonts: Chakra Petch (Headings/Brand) & Inter (Body)
   ========================================================================== */

@import url('https://fonts.googleapis.com/css2?family=Chakra+Petch:ital,wght@0,300;0,400;0,500;0,600;0,700;1,400;1,700&family=Inter:wght@300;400;500;600;700&display=swap');

/* LIGHT MODE (DEFAULT THEME) */
:root, html[data-theme="light"] {
  --bg-dark: #F8FAFC;
  --bg-surface: #FFFFFF;
  --bg-surface-elevated: #F1F5F9;
  --bg-surface-hover: #E2E8F0;
  
  --border-color: #E2E8F0;
  --border-color-glow: rgba(2, 137, 194, 0.4);
  
  --gold-primary: #0289C2;
  --gold-hover: #026FA0;
  --gold-glow: rgba(2, 137, 194, 0.15);
  --gold-dark: #015880;
  
  --blue-accent: #0289C2;
  --green-accent: #059669;
  --red-accent: #DC2626;
  
  --text-main: #0F172A;
  --text-muted: #475569;
  --text-dim: #64748B;
  
  /* Typography */
  --font-heading: 'Chakra Petch', -apple-system, sans-serif;
  --font-body: 'Inter', -apple-system, sans-serif;
  
  /* Shadows & FX */
  --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.08);
  --shadow-md: 0 4px 12px rgba(0, 0, 0, 0.08);
  --shadow-lg: 0 10px 25px rgba(0, 0, 0, 0.12);
  --shadow-gold: 0 0 15px rgba(2, 137, 194, 0.2);
  
  --radius-sm: 6px;
  --radius-md: 10px;
  --radius-lg: 14px;
  --radius-full: 9999px;
  
  --transition-fast: 0.15s ease;
  --transition-normal: 0.25s cubic-bezier(0.4, 0, 0.2, 1);
}

/* DARK MODE THEME */
html[data-theme="dark"] {
  --bg-dark: #070C14;
  --bg-surface: #0E1626;
  --bg-surface-elevated: #152238;
  --bg-surface-hover: #1C2D4A;
  
  --border-color: #1E304D;
  --border-color-glow: rgba(2, 137, 194, 0.4);
  
  --gold-primary: #0289C2;
  --gold-hover: #38BDF8;
  --gold-glow: rgba(2, 137, 194, 0.25);
  --gold-dark: #015880;
  
  --blue-accent: #38BDF8;
  --green-accent: #10B981;
  --red-accent: #EF4444;
  
  --text-main: #F8FAFC;
  --text-muted: #94A3B8;
  --text-dim: #64748B;
  
  --shadow-sm: 0 2px 4px rgba(0, 0, 0, 0.3);
  --shadow-md: 0 4px 12px rgba(0, 0, 0, 0.4);
  --shadow-lg: 0 10px 25px rgba(0, 0, 0, 0.5);
  --shadow-gold: 0 0 15px rgba(2, 137, 194, 0.25);
}

/* Reset & Global Standards */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  font-size: 16px;
  scroll-behavior: smooth;
  overflow-x: hidden;
}

body {
  font-family: var(--font-body);
  background-color: var(--bg-dark);
  color: var(--text-main);
  line-height: 1.5;
  min-height: 100vh;
  width: 100%;
  max-width: 100vw;
  display: flex;
  flex-direction: column;
  overflow-x: hidden;
  transition: background-color var(--transition-normal), color var(--transition-normal);
}

/* Typography */
h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-heading);
  letter-spacing: 0.02em;
  text-transform: uppercase;
  color: var(--text-main);
  word-break: break-word;
}

a {
  color: var(--gold-primary);
  text-decoration: none;
  transition: color var(--transition-fast);
}

a:hover {
  color: var(--gold-hover);
}

/* Header Navbar - 3 Columns Layout */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background-color: var(--bg-surface);
  border-bottom: 1px solid var(--border-color);
  box-shadow: var(--shadow-sm);
  width: 100%;
  transition: background-color var(--transition-normal), border-color var(--transition-normal);
}

.header-container {
  max-width: 1650px;
  width: 100%;
  margin: 0 auto;
  padding: 0.65rem 1rem;
  display: grid;
  grid-template-columns: auto minmax(280px, 640px) auto;
  align-items: center;
  justify-content: space-between;
  gap: 1.25rem;
  box-sizing: border-box;
}

.header-col-left {
  display: flex;
  align-items: center;
  flex-shrink: 0;
}

.brand-logo {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  text-decoration: none;
}

.brand-logo-img {
  height: 42px;
  width: auto;
  object-fit: contain;
  display: block;
  transition: opacity var(--transition-fast);
}

/* Center Column Search Bar */
.header-col-center {
  display: flex;
  align-items: center;
  width: 100%;
}

.header-col-right {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  justify-content: flex-end;
  flex-shrink: 0;
}

/* Theme Switcher Button Fix */
.theme-toggle-btn {
  background-color: var(--bg-surface-elevated);
  border: 1px solid var(--border-color);
  color: var(--text-main);
  padding: 0.35rem 0.75rem;
  border-radius: var(--radius-full);
  font-family: var(--font-heading);
  font-size: 0.8rem;
  font-weight: 600;
  cursor: pointer;
  display: flex;
  align-items: center;
  gap: 0.4rem;
  transition: all var(--transition-fast);
  user-select: none;
  -webkit-user-select: none;
  touch-action: manipulation;
}

.theme-toggle-btn * {
  pointer-events: none;
}

.theme-toggle-btn:hover {
  border-color: var(--gold-primary);
  color: var(--gold-primary);
}

.svg-icon-span {
  display: flex;
  align-items: center;
  justify-content: center;
}

.header-badge {
  display: flex;
  align-items: center;
  gap: 0.45rem;
  background-color: var(--bg-surface-elevated);
  border: 1px solid var(--border-color);
  padding: 0.35rem 0.75rem;
  border-radius: var(--radius-full);
  font-family: var(--font-heading);
  font-size: 0.78rem;
  color: var(--gold-primary);
  white-space: nowrap;
  flex-shrink: 0;
}

.live-indicator {
  width: 8px;
  height: 8px;
  background-color: var(--green-accent);
  border-radius: 50%;
  box-shadow: 0 0 8px var(--green-accent);
  animation: pulse 2s infinite;
  flex-shrink: 0;
}

@keyframes pulse {
  0% { transform: scale(0.95); opacity: 0.8; }
  50% { transform: scale(1.15); opacity: 1; }
  100% { transform: scale(0.95); opacity: 0.8; }
}

/* MAIN LAYOUT */
.main-wrapper {
  max-width: 1650px;
  width: 100%;
  margin: 0 auto;
  padding: 1rem 0.75rem;
  flex: 1;
  display: grid;
  grid-template-columns: 320px minmax(0, 1fr);
  gap: 1.25rem;
  box-sizing: border-box;
}

/* LEFT SIDEBAR NAVIGATION */
.category-sidebar {
  display: flex;
  flex-direction: column;
  gap: 1.1rem;
  min-width: 0;
}

.sidebar-box {
  background-color: var(--bg-surface);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 1rem;
  box-shadow: var(--shadow-sm);
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
  transition: background-color var(--transition-normal), border-color var(--transition-normal);
}

/* SIDEBAR HEADING WITH ACCORDION EVENT FIX */
.sidebar-heading-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-bottom: 0.55rem;
  border-bottom: 1px solid var(--border-color);
  cursor: pointer;
  user-select: none;
  -webkit-user-select: none;
  touch-action: manipulation;
}

.sidebar-heading-row * {
  pointer-events: none;
}

.sidebar-heading-text {
  font-size: 0.85rem;
  color: var(--gold-primary);
  letter-spacing: 0.05em;
}

.box-accordion-btn {
  background: transparent;
  border: none;
  color: var(--gold-primary);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 2px;
  border-radius: var(--radius-sm);
  transition: all var(--transition-fast);
}

.chevron-svg {
  transition: transform var(--transition-normal);
}

.sidebar-box.collapsed .chevron-svg {
  transform: rotate(-90deg);
}

.sidebar-box.collapsed .sidebar-category-list,
.sidebar-box.collapsed .sidebar-subcategory-list {
  display: none;
}

.sidebar-category-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 0.35rem;
}

.side-cat-btn {
  width: 100%;
  text-align: left;
  background: transparent;
  border: 1px solid transparent;
  padding: 0.6rem 0.8rem;
  border-radius: var(--radius-sm);
  color: var(--text-muted);
  font-family: var(--font-heading);
  font-size: 0.85rem;
  font-weight: 600;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.5rem;
  transition: all var(--transition-fast);
  text-transform: uppercase;
  min-width: 0;
  user-select: none;
  -webkit-user-select: none;
  touch-action: manipulation;
}

.side-cat-btn * {
  pointer-events: none;
}

.cat-btn-inner {
  display: flex;
  align-items: center;
  gap: 0.55rem;
  min-width: 0;
  overflow: hidden;
}

.cat-btn-inner span {
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.cat-svg-icon {
  flex-shrink: 0;
  color: var(--gold-primary);
}

.side-cat-btn:hover {
  background-color: var(--bg-surface-hover);
  color: var(--text-main);
}

.side-cat-btn.active {
  background-color: var(--bg-surface-elevated);
  color: var(--gold-primary);
  border-color: var(--border-color-glow);
  border-left: 4px solid var(--gold-primary);
}

.side-cat-btn.active .count-badge {
  background-color: var(--gold-primary);
  color: #FFF;
  font-weight: 700;
}

.sidebar-subcategory-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 0.3rem;
  max-height: 360px;
  overflow-y: auto;
  scrollbar-width: thin;
}

.side-subcat-btn {
  width: 100%;
  text-align: left;
  background: transparent;
  border: 1px solid transparent;
  padding: 0.5rem 0.75rem;
  border-radius: var(--radius-sm);
  color: var(--text-muted);
  font-family: var(--font-body);
  font-size: 0.82rem;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.4rem;
  transition: all var(--transition-fast);
  min-width: 0;
  user-select: none;
  -webkit-user-select: none;
  touch-action: manipulation;
}

.side-subcat-btn * {
  pointer-events: none;
}

.side-subcat-btn span:first-child {
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  min-width: 0;
}

.side-subcat-btn:hover {
  background-color: var(--bg-surface-hover);
  color: var(--text-main);
}

.side-subcat-btn.active {
  background-color: var(--bg-surface-elevated);
  color: var(--gold-primary);
  border-color: var(--border-color-glow);
  border-left: 3px solid var(--gold-primary);
  font-weight: 600;
}

.count-badge {
  background-color: rgba(0, 0, 0, 0.06);
  color: var(--text-muted);
  font-size: 0.72rem;
  padding: 0.12rem 0.45rem;
  border-radius: var(--radius-full);
  font-family: var(--font-body);
  flex-shrink: 0;
}

html[data-theme="dark"] .count-badge {
  background-color: rgba(255, 255, 255, 0.1);
}

/* RIGHT CONTENT AREA */
.content-area {
  display: flex;
  flex-direction: column;
  gap: 1rem;
  min-width: 0;
  width: 100%;
}

/* Search Card Banner & Advanced Controls */
.search-card-banner {
  background-color: var(--bg-surface);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 0.75rem 1rem;
  display: flex;
  flex-direction: column;
  gap: 0.65rem;
  width: 100%;
  box-sizing: border-box;
  box-shadow: var(--shadow-sm);
  transition: background-color var(--transition-normal), border-color var(--transition-normal);
}

.search-input-wrapper {
  position: relative;
  display: flex;
  align-items: center;
  width: 100%;
}

.search-icon {
  position: absolute;
  left: 0.85rem;
  color: var(--gold-primary);
  pointer-events: none;
  display: flex;
  align-items: center;
}

.search-input {
  width: 100%;
  padding: 0.65rem 2.6rem 0.65rem 2.6rem;
  background-color: var(--bg-surface-elevated);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  color: var(--text-main);
  font-family: var(--font-body);
  font-size: 0.9rem;
  transition: all var(--transition-normal);
  box-sizing: border-box;
}

.search-input:focus {
  outline: none;
  border-color: var(--gold-primary);
  box-shadow: 0 0 0 3px var(--gold-glow);
}

.clear-search-btn {
  position: absolute;
  right: 0.65rem;
  background: rgba(0, 0, 0, 0.08);
  border: none;
  color: var(--text-muted);
  cursor: pointer;
  width: 22px;
  height: 22px;
  border-radius: 50%;
  display: none;
  align-items: center;
  justify-content: center;
  font-size: 0.8rem;
  transition: all var(--transition-fast);
}

.clear-search-btn:hover {
  color: var(--text-main);
  background-color: var(--red-accent);
}

/* ADVANCED SEARCH BAR OPTIONS */
.advanced-search-bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 0.75rem;
  padding: 0.4rem 0.6rem;
  background-color: var(--bg-surface-elevated);
  border: 1px dashed var(--border-color);
  border-radius: var(--radius-sm);
}

.adv-checkbox-label {
  display: flex;
  align-items: center;
  gap: 0.45rem;
  font-size: 0.78rem;
  color: var(--text-muted);
  cursor: pointer;
  user-select: none;
}

.adv-checkbox-label input[type="checkbox"] {
  accent-color: var(--gold-primary);
  width: 15px;
  height: 15px;
  cursor: pointer;
}

.adv-checkbox-label span {
  color: var(--gold-primary);
  font-weight: 500;
}

.adv-filters-group {
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.adv-select {
  background-color: var(--bg-surface);
  border: 1px solid var(--border-color);
  color: var(--text-main);
  padding: 0.25rem 0.5rem;
  border-radius: var(--radius-sm);
  font-family: var(--font-body);
  font-size: 0.76rem;
  cursor: pointer;
}

.adv-select:focus {
  outline: none;
  border-color: var(--gold-primary);
}

.quick-tags {
  display: flex;
  align-items: center;
  gap: 0.35rem;
  flex-wrap: wrap;
  font-size: 0.75rem;
  color: var(--text-dim);
}

.quick-tag-btn {
  background-color: rgba(0, 0, 0, 0.04);
  border: 1px solid var(--border-color);
  color: var(--text-muted);
  padding: 0.12rem 0.5rem;
  border-radius: var(--radius-full);
  cursor: pointer;
  font-family: var(--font-body);
  font-size: 0.72rem;
  transition: all var(--transition-fast);
}

html[data-theme="dark"] .quick-tag-btn {
  background-color: rgba(255, 255, 255, 0.05);
}

.quick-tag-btn:hover {
  border-color: var(--gold-primary);
  color: var(--gold-primary);
  background-color: rgba(2, 137, 194, 0.1);
}

/* Content Toolbar */
.content-toolbar {
  background-color: var(--bg-surface);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 0.65rem 1rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 0.65rem;
  width: 100%;
  box-sizing: border-box;
  box-shadow: var(--shadow-sm);
  transition: background-color var(--transition-normal), border-color var(--transition-normal);
}

.view-heading-group {
  display: flex;
  align-items: baseline;
  gap: 0.5rem;
  min-width: 0;
}

.active-category-title {
  font-size: 1.1rem;
  color: var(--text-main);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  min-width: 0;
}

.result-count {
  font-size: 0.8rem;
  color: var(--text-muted);
  font-family: var(--font-body);
  white-space: nowrap;
}

.toolbar-controls {
  display: flex;
  align-items: center;
  gap: 0.65rem;
  flex-shrink: 0;
}

.sort-wrapper {
  display: flex;
  align-items: center;
  gap: 0.35rem;
  font-size: 0.8rem;
  color: var(--text-muted);
}

.sort-select {
  background-color: var(--bg-surface-elevated);
  border: 1px solid var(--border-color);
  color: var(--text-main);
  padding: 0.3rem 0.55rem;
  border-radius: var(--radius-sm);
  font-family: var(--font-body);
  font-size: 0.8rem;
  cursor: pointer;
}

.sort-select:focus {
  outline: none;
  border-color: var(--gold-primary);
}

.view-mode-toggle {
  display: flex;
  background-color: var(--bg-surface-elevated);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-sm);
  padding: 2px;
}

.view-btn {
  background: none;
  border: none;
  color: var(--text-muted);
  padding: 0.3rem 0.5rem;
  border-radius: var(--radius-sm);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all var(--transition-fast);
}

.view-btn:hover {
  color: var(--text-main);
}

.view-btn.active {
  background-color: var(--gold-primary);
  color: #FFF;
}

/* GRID LAYOUT */
.resource-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
  gap: 0.9rem;
  width: 100%;
  box-sizing: border-box;
}

.resource-card {
  background-color: var(--bg-surface);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 0.9rem;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  gap: 0.85rem;
  transition: all var(--transition-normal);
  position: relative;
  overflow: hidden;
  min-width: 0;
  box-sizing: border-box;
  box-shadow: var(--shadow-sm);
}

.resource-card:hover {
  transform: translateY(-2px);
  border-color: var(--border-color-glow);
  box-shadow: var(--shadow-md), var(--shadow-gold);
  background-color: var(--bg-surface-elevated);
}

.card-top {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.file-icon-box {
  width: 38px;
  height: 38px;
  border-radius: var(--radius-md);
  background-color: rgba(2, 137, 194, 0.1);
  border: 1px solid rgba(2, 137, 194, 0.25);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--gold-primary);
  flex-shrink: 0;
}

.ext-badge {
  font-family: var(--font-heading);
  font-size: 0.68rem;
  font-weight: 700;
  padding: 0.15rem 0.45rem;
  border-radius: var(--radius-sm);
  text-transform: uppercase;
  background-color: rgba(2, 137, 194, 0.1);
  color: var(--blue-accent);
  border: 1px solid rgba(2, 137, 194, 0.25);
}

.card-body {
  display: flex;
  flex-direction: column;
  gap: 0.3rem;
  min-width: 0;
}

.card-title {
  font-family: var(--font-heading);
  font-size: 0.95rem;
  font-weight: 600;
  color: var(--text-main);
  line-height: 1.3;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
  word-break: break-word;
}

.card-meta {
  display: flex;
  align-items: center;
  gap: 0.35rem;
  font-size: 0.74rem;
  color: var(--text-dim);
  min-width: 0;
}

.subcategory-tag {
  color: var(--text-muted);
  background-color: rgba(0, 0, 0, 0.04);
  padding: 0.12rem 0.4rem;
  border-radius: var(--radius-sm);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  max-width: 150px;
}

html[data-theme="dark"] .subcategory-tag {
  background-color: rgba(255, 255, 255, 0.05);
}

.content-match-badge {
  font-size: 0.72rem;
  color: var(--gold-primary);
  background-color: rgba(2, 137, 194, 0.08);
  border: 1px solid rgba(2, 137, 194, 0.2);
  padding: 0.2rem 0.45rem;
  border-radius: var(--radius-sm);
  line-height: 1.3;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
  margin-top: 0.2rem;
}

.card-actions {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0.45rem;
  width: 100%;
}

.btn-preview {
  padding: 0.5rem 0.4rem;
  background-color: transparent;
  border: 1px solid var(--border-color);
  color: var(--text-main);
  border-radius: var(--radius-sm);
  font-family: var(--font-heading);
  font-size: 0.76rem;
  font-weight: 600;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.3rem;
  transition: all var(--transition-fast);
  text-transform: uppercase;
  white-space: nowrap;
}

.btn-preview:hover {
  border-color: var(--gold-primary);
  color: var(--gold-primary);
  background-color: rgba(2, 137, 194, 0.08);
}

.btn-download {
  padding: 0.5rem 0.4rem;
  background: linear-gradient(135deg, var(--gold-primary), var(--gold-dark));
  border: none;
  color: #FFF;
  border-radius: var(--radius-sm);
  font-family: var(--font-heading);
  font-size: 0.76rem;
  font-weight: 700;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.3rem;
  transition: all var(--transition-fast);
  text-transform: uppercase;
  text-decoration: none;
  white-space: nowrap;
}

.btn-download:hover {
  background: linear-gradient(135deg, var(--gold-hover), var(--gold-primary));
  box-shadow: 0 0 8px rgba(2, 137, 194, 0.4);
  color: #FFF;
}

/* LIST LAYOUT */
.resource-list {
  display: flex;
  flex-direction: column;
  gap: 0.55rem;
  width: 100%;
  box-sizing: border-box;
}

.resource-row {
  background-color: var(--bg-surface);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 0.75rem 0.95rem;
  display: grid;
  grid-template-columns: 32px minmax(160px, 1fr) minmax(110px, 160px) 95px 215px;
  align-items: center;
  gap: 0.85rem;
  transition: all var(--transition-fast);
  width: 100%;
  box-sizing: border-box;
  min-width: 0;
  box-shadow: var(--shadow-sm);
}

.resource-row:hover {
  background-color: var(--bg-surface-elevated);
  border-color: var(--border-color-glow);
}

.row-icon {
  color: var(--gold-primary);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.row-title-group {
  display: flex;
  flex-direction: column;
  gap: 0.1rem;
  min-width: 0;
}

.row-title {
  font-family: var(--font-heading);
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--text-main);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.row-path {
  font-size: 0.72rem;
  color: var(--text-dim);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.row-category {
  font-size: 0.78rem;
  color: var(--text-muted);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.row-size {
  font-size: 0.78rem;
  color: var(--text-dim);
  text-align: right;
  white-space: nowrap;
  padding-right: 0.5rem;
}

.row-actions {
  display: flex;
  align-items: center;
  justify-content: flex-end;
  gap: 0.4rem;
  width: 215px;
  flex-shrink: 0;
}

.row-actions .btn-preview,
.row-actions .btn-download {
  padding: 0.45rem 0.55rem;
  font-size: 0.74rem;
  flex-shrink: 0;
}

/* Empty State */
.empty-state {
  background-color: var(--bg-surface);
  border: 1px dashed var(--border-color);
  border-radius: var(--radius-md);
  padding: 3.5rem 1.5rem;
  text-align: center;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.85rem;
  width: 100%;
  box-sizing: border-box;
}

.empty-icon {
  font-size: 2.5rem;
  color: var(--text-dim);
  display: flex;
  align-items: center;
  justify-content: center;
}

.empty-title {
  font-size: 1.1rem;
  color: var(--text-muted);
}

.empty-desc {
  color: var(--text-dim);
  max-width: 380px;
  font-size: 0.85rem;
}

/* PDF Preview Modal */
.modal-overlay {
  position: fixed;
  top: 0;
  left: 0;
  width: 100vw;
  height: 100vh;
  background-color: rgba(0, 0, 0, 0.75);
  backdrop-filter: blur(8px);
  z-index: 1000;
  display: none;
  align-items: center;
  justify-content: center;
  padding: 1rem;
  box-sizing: border-box;
  opacity: 0;
  transition: opacity var(--transition-normal);
}

.modal-overlay.active {
  display: flex;
  opacity: 1;
}

.modal-container {
  background-color: var(--bg-surface);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  width: 100%;
  max-width: 1150px;
  height: 90vh;
  display: flex;
  flex-direction: column;
  box-shadow: var(--shadow-lg), var(--shadow-gold);
  overflow: hidden;
}

.modal-header {
  padding: 0.75rem 1rem;
  background-color: var(--bg-surface-elevated);
  border-bottom: 1px solid var(--border-color);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.85rem;
}

.modal-title-box {
  display: flex;
  flex-direction: column;
  min-width: 0;
}

.modal-title {
  font-size: 1rem;
  color: var(--text-main);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.modal-subtitle {
  font-size: 0.74rem;
  color: var(--text-muted);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.modal-actions {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  flex-shrink: 0;
}

.modal-close-btn {
  background: none;
  border: none;
  color: var(--text-muted);
  font-size: 1.3rem;
  cursor: pointer;
  padding: 0.2rem;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius-sm);
  transition: all var(--transition-fast);
}

.modal-close-btn:hover {
  color: var(--red-accent);
  background-color: rgba(220, 38, 38, 0.1);
}

.modal-body {
  flex: 1;
  background-color: #1a1a1a;
  position: relative;
}

.modal-iframe {
  width: 100%;
  height: 100%;
  border: none;
}

/* FLOATING CONTACT US BUTTON */
.floating-contact-btn {
  position: fixed;
  bottom: 1.75rem;
  right: 1.75rem;
  z-index: 999;
  background: linear-gradient(135deg, #0289C2, #015880);
  color: #FFFFFF !important;
  font-family: var(--font-heading);
  font-size: 0.85rem;
  font-weight: 700;
  padding: 0.65rem 1.1rem;
  border-radius: var(--radius-full);
  display: flex;
  align-items: center;
  gap: 0.45rem;
  box-shadow: 0 4px 15px rgba(2, 137, 194, 0.4);
  border: 1px solid rgba(255, 255, 255, 0.2);
  transition: all var(--transition-normal);
  text-transform: uppercase;
  letter-spacing: 0.03em;
  text-decoration: none;
}

.floating-contact-btn:hover {
  transform: translateY(-3px) scale(1.03);
  box-shadow: 0 8px 22px rgba(2, 137, 194, 0.6);
  background: linear-gradient(135deg, #38BDF8, #0289C2);
  color: #FFFFFF !important;
}

.contact-icon {
  display: flex;
  align-items: center;
  justify-content: center;
}

/* Footer Section */
.site-footer {
  background-color: var(--bg-surface);
  border-top: 1px solid var(--border-color);
  margin-top: 3rem;
  padding: 2rem 1rem 1rem 1rem;
  width: 100%;
  box-sizing: border-box;
  transition: background-color var(--transition-normal), border-color var(--transition-normal);
}

.footer-container {
  max-width: 1650px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 1.5rem;
  margin-bottom: 1.5rem;
}

.footer-brand {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

.footer-desc {
  font-size: 0.82rem;
  color: var(--text-muted);
  max-width: 360px;
}

.footer-heading {
  font-size: 0.85rem;
  color: var(--gold-primary);
  margin-bottom: 0.75rem;
}

.footer-links {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
}

.footer-links a {
  color: var(--text-muted);
  font-size: 0.82rem;
}

.footer-links a:hover {
  color: var(--gold-primary);
}

.footer-bottom {
  max-width: 1650px;
  margin: 0 auto;
  padding-top: 1rem;
  border-top: 1px solid var(--border-color);
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-size: 0.75rem;
  color: var(--text-dim);
  flex-wrap: wrap;
  gap: 0.75rem;
}

mark.highlight {
  background-color: rgba(2, 137, 194, 0.35);
  color: inherit;
  padding: 0 0.15rem;
  border-radius: 2px;
}

/* RESPONSIVE MEDIA QUERIES */
@media (max-width: 1200px) {
  .resource-row {
    grid-template-columns: 32px minmax(140px, 1fr) 95px 215px;
  }
  .row-category {
    display: none;
  }
}

@media (max-width: 1024px) {
  .header-container {
    grid-template-columns: 1fr;
    gap: 0.75rem;
  }

  .header-col-right {
    justify-content: space-between;
  }

  .main-wrapper {
    grid-template-columns: 1fr;
    padding: 0.75rem;
  }
  
  .category-sidebar {
    position: static;
  }

  .advanced-search-bar {
    flex-direction: column;
    align-items: stretch;
  }
}

@media (max-width: 768px) {
  .header-container {
    padding: 0.65rem 0.75rem;
  }

  .resource-row {
    grid-template-columns: 28px 1fr;
    grid-template-rows: auto auto;
  }
  
  .row-category, .row-size {
    display: none;
  }
  
  .row-actions {
    grid-column: 1 / -1;
    justify-content: stretch;
    width: 100%;
  }

  .footer-container {
    grid-template-columns: 1fr;
  }

  .floating-contact-btn {
    bottom: 1.25rem;
    right: 1.25rem;
    padding: 0.55rem 0.9rem;
    font-size: 0.78rem;
  }
}