/* ==========================================================================
   FLIPBOOK CATALOG VIEWER - MODERN LUXURY DARK/LIGHT THEME
   Viện Nghiên Cứu và Ứng Dụng Y Dược Cổ Truyền - OMY Pharma
   ========================================================================== */

:root {
  --font-sans: 'Plus Jakarta Sans', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  --font-serif: 'Playfair Display', Georgia, serif;
  --font-mono: 'JetBrains Mono', monospace;

  /* Theme Dark (Default) */
  --bg-app: #080f0c;
  --bg-viewer: #0b1510;
  --bg-toolbar: rgba(10, 22, 16, 0.92);
  --bg-sidebar: #07130e;
  --bg-card: #0e241b;
  --bg-input: #06150e;
  
  --text-main: #f5f3ec;
  --text-muted: #8ea698;
  --text-gold: #cda351;
  --text-gold-light: #f3dfa2;

  --border-subtle: rgba(255, 255, 255, 0.08);
  --border-gold: rgba(205, 163, 81, 0.35);
  --border-gold-bright: #cda351;

  --shadow-main: 0 16px 40px rgba(0, 0, 0, 0.6);
  --shadow-gold: 0 0 25px rgba(205, 163, 81, 0.25);
  --shadow-book: 0 20px 50px rgba(0, 0, 0, 0.8), 0 0 30px rgba(0, 0, 0, 0.4);

  --toolbar-height: 56px;
  --bottom-bar-height: 54px;
}

/* Light Theme Variables */
body.theme-light {
  --bg-app: #f0ede4;
  --bg-viewer: #e5e0d4;
  --bg-toolbar: rgba(245, 243, 238, 0.95);
  --bg-sidebar: #f8f6f0;
  --bg-card: #ffffff;
  --bg-input: #eae5d8;

  --text-main: #14231b;
  --text-muted: #536b5e;
  --text-gold: #8c6c21;
  --text-gold-light: #b8933b;

  --border-subtle: rgba(0, 0, 0, 0.1);
  --border-gold: rgba(140, 108, 33, 0.4);
  --border-gold-bright: #8c6c21;

  --shadow-main: 0 10px 30px rgba(0, 0, 0, 0.15);
  --shadow-gold: 0 0 15px rgba(140, 108, 33, 0.2);
  --shadow-book: 0 15px 40px rgba(0, 0, 0, 0.25);
}

/* Base Reset */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
  -webkit-tap-highlight-color: transparent;
}

html, body {
  width: 100%;
  height: 100%;
  overflow: hidden;
  font-family: var(--font-sans);
  background-color: var(--bg-app);
  color: var(--text-main);
  font-size: 14px;
  line-height: 1.5;
}

/* Typography Utilities */
.text-gold { color: var(--text-gold); }
.hidden { display: none !important; }

/* Custom Scrollbar */
.custom-scrollbar::-webkit-scrollbar {
  width: 5px;
  height: 5px;
}
.custom-scrollbar::-webkit-scrollbar-track {
  background: transparent;
}
.custom-scrollbar::-webkit-scrollbar-thumb {
  background: var(--border-gold);
  border-radius: 4px;
}
.custom-scrollbar::-webkit-scrollbar-thumb:hover {
  background: var(--text-gold);
}

/* ==================== APP CONTAINER ==================== */
.catalog-app-container {
  display: flex;
  flex-direction: column;
  width: 100vw;
  height: 100vh;
  position: relative;
  overflow: hidden;
  background-color: var(--bg-app);
}

/* ==================== TOOLBARS ==================== */
.toolbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 16px;
  background: var(--bg-toolbar);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  z-index: 40;
  border-color: var(--border-gold);
}

.top-toolbar {
  height: var(--toolbar-height);
  border-bottom: 1px solid var(--border-subtle);
}

.bottom-toolbar {
  height: var(--bottom-bar-height);
  border-top: 1px solid var(--border-subtle);
}

.toolbar-left, .toolbar-right, .toolbar-center,
.bottom-left, .bottom-center, .bottom-right {
  display: flex;
  align-items: center;
  gap: 8px;
}

/* Brand & Logo */
.brand-badge {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-left: 6px;
}
.brand-logo {
  height: 32px;
  width: auto;
  object-fit: contain;
}
.brand-info {
  display: flex;
  flex-direction: column;
}
.catalog-main-title {
  font-family: var(--font-serif);
  font-size: 14px;
  font-weight: 700;
  color: var(--text-main);
  letter-spacing: 0.5px;
  line-height: 1.2;
}
.catalog-tagline {
  font-size: 10px;
  color: var(--text-gold);
  font-weight: 600;
  letter-spacing: 1px;
}

/* Tool Buttons */
.tool-btn, .nav-btn, .control-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  height: 36px;
  min-width: 36px;
  padding: 0 10px;
  background: transparent;
  border: 1px solid transparent;
  border-radius: 8px;
  color: var(--text-main);
  font-size: 12px;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.2s ease;
}

.tool-btn:hover, .control-btn:hover, .nav-btn:hover {
  background: rgba(205, 163, 81, 0.12);
  border-color: var(--border-gold);
  color: var(--text-gold-light);
}

.tool-btn:active, .control-btn:active {
  transform: scale(0.96);
}

.icon {
  width: 18px;
  height: 18px;
}
.icon-sm {
  width: 16px;
  height: 16px;
}
.icon-xs {
  width: 14px;
  height: 14px;
}

/* Quick TOC dropdown button */
.quick-toc-btn {
  background: var(--bg-card);
  border: 1px solid var(--border-gold);
  padding: 0 12px;
  border-radius: 20px;
  max-width: 280px;
}
.current-section-label {
  font-size: 12px;
  font-weight: 600;
  color: var(--text-gold-light);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

/* Page Jump Controls */
.page-controls, .zoom-controls {
  display: flex;
  align-items: center;
  gap: 4px;
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: 24px;
  padding: 2px 6px;
}

.page-counter-wrap {
  display: flex;
  align-items: center;
  gap: 4px;
  padding: 0 4px;
}

.page-input {
  width: 36px;
  height: 26px;
  background: var(--bg-input);
  border: 1px solid var(--border-gold);
  border-radius: 6px;
  color: var(--text-gold-light);
  font-family: var(--font-mono);
  font-size: 12px;
  font-weight: 700;
  text-align: center;
  outline: none;
}
.page-input:focus {
  border-color: var(--text-gold);
  box-shadow: 0 0 6px var(--border-gold);
}
.page-divider {
  color: var(--text-muted);
  font-size: 12px;
}
.page-total {
  color: var(--text-muted);
  font-family: var(--font-mono);
  font-size: 12px;
  font-weight: 600;
}

.zoom-level-btn {
  background: transparent;
  border: none;
  color: var(--text-gold-light);
  font-family: var(--font-mono);
  font-size: 11px;
  font-weight: 700;
  padding: 0 6px;
  cursor: pointer;
}

/* ==================== VIEWER MAIN & ARROWS ==================== */
.viewer-main {
  flex: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
  width: 100%;
  height: calc(100vh - var(--toolbar-height) - var(--bottom-bar-height));
  background-color: var(--bg-viewer);
  background-image: radial-gradient(circle at 50% 50%, rgba(205, 163, 81, 0.05) 0%, transparent 70%);
  overflow: hidden;
  padding: 10px;
}

/* Large Nav Arrows on screen sides */
.nav-arrow {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  width: 48px;
  height: 64px;
  background: rgba(10, 22, 16, 0.7);
  border: 1px solid var(--border-gold);
  border-radius: 12px;
  color: var(--text-gold);
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  z-index: 30;
  transition: all 0.25s ease;
  backdrop-filter: blur(8px);
}
.nav-arrow:hover {
  background: var(--bg-card);
  color: var(--text-gold-light);
  border-color: var(--text-gold);
  box-shadow: var(--shadow-gold);
  transform: translateY(-50%) scale(1.08);
}
.nav-arrow:disabled {
  opacity: 0.25;
  cursor: not-allowed;
  pointer-events: none;
}
.nav-prev { left: 14px; }
.nav-next { right: 14px; }

.arrow-icon {
  width: 28px;
  height: 28px;
}

/* ==================== FLIPBOOK STAGE ==================== */
.flipbook-viewport {
  width: 100%;
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
  touch-action: pan-y pinch-zoom;
}

.flipbook-container {
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
  box-shadow: var(--shadow-book);
  border-radius: 6px;
  transition: transform 0.3s cubic-bezier(0.25, 1, 0.5, 1);
  transform-origin: center center;
}

/* Page Element inside PageFlip */
.st-page {
  background-color: #ffffff;
  overflow: hidden;
  position: relative;
}

.page-canvas-wrapper {
  width: 100%;
  height: 100%;
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
  background: #ffffff;
}

.page-canvas-wrapper canvas,
.page-canvas-wrapper img,
.page-image-render {
  width: 100%;
  height: 100%;
  display: block;
  object-fit: fill;
  user-select: none;
  -webkit-user-drag: none;
  pointer-events: none;
}

.thumb-img {
  width: 100%;
  height: 72px;
  object-fit: contain;
  background: #ffffff;
  display: block;
}

.page-loading-skeleton {
  position: absolute;
  inset: 0;
  background: #ffffff;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 12px;
  color: #666666;
  font-size: 12px;
}

/* Book Spine & Hard Cover shadow simulation */
.st-page.--left {
  box-shadow: inset -10px 0 20px rgba(0, 0, 0, 0.15);
}
.st-page.--right {
  box-shadow: inset 10px 0 20px rgba(0, 0, 0, 0.15);
}

/* ==================== SIDEBARS & DRAWERS ==================== */
.sidebar {
  position: absolute;
  top: var(--toolbar-height);
  bottom: var(--bottom-bar-height);
  width: 340px;
  max-width: 90vw;
  background: var(--bg-sidebar);
  border-right: 1px solid var(--border-gold);
  z-index: 50;
  display: flex;
  flex-direction: column;
  transform: translateX(-100%);
  transition: transform 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  box-shadow: var(--shadow-main);
}

.sidebar.open {
  transform: translateX(0);
}

.sidebar-search {
  left: auto;
  right: 0;
  border-right: none;
  border-left: 1px solid var(--border-gold);
  transform: translateX(100%);
}
.sidebar-search.open {
  transform: translateX(0);
}

.sidebar-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 16px 20px;
  border-bottom: 1px solid var(--border-subtle);
}

.sidebar-title-group {
  display: flex;
  align-items: center;
  gap: 10px;
}
.sidebar-title {
  font-family: var(--font-serif);
  font-size: 16px;
  font-weight: 700;
  color: var(--text-main);
}

.close-sidebar-btn, .close-drawer-btn {
  background: transparent;
  border: none;
  color: var(--text-muted);
  cursor: pointer;
  padding: 4px;
  border-radius: 6px;
}
.close-sidebar-btn:hover, .close-drawer-btn:hover {
  color: var(--text-main);
  background: rgba(255, 255, 255, 0.08);
}

.sidebar-content {
  flex: 1;
  overflow-y: auto;
  padding: 16px;
}

/* TOC Tabs */
.toc-tabs {
  display: flex;
  border-bottom: 1px solid var(--border-subtle);
  background: var(--bg-card);
}
.toc-tab-btn {
  flex: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  padding: 10px;
  background: transparent;
  border: none;
  border-bottom: 2px solid transparent;
  color: var(--text-muted);
  font-size: 12px;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.2s ease;
}
.toc-tab-btn.active {
  color: var(--text-gold);
  border-bottom-color: var(--text-gold);
  background: rgba(205, 163, 81, 0.05);
}

/* TOC Item */
.toc-item {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 12px 14px;
  margin-bottom: 6px;
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: 10px;
  color: var(--text-main);
  font-size: 13px;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.2s ease;
}
.toc-item:hover, .toc-item.active {
  background: rgba(205, 163, 81, 0.15);
  border-color: var(--border-gold);
  color: var(--text-gold-light);
  transform: translateX(4px);
}
.toc-item-page {
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--text-gold);
  background: rgba(205, 163, 81, 0.1);
  padding: 2px 8px;
  border-radius: 12px;
}

/* Search Box in Sidebar */
.search-input-wrapper {
  padding: 16px;
  border-bottom: 1px solid var(--border-subtle);
}
.search-input-box {
  display: flex;
  align-items: center;
  gap: 8px;
  background: var(--bg-input);
  border: 1px solid var(--border-gold);
  border-radius: 10px;
  padding: 8px 12px;
}
.search-input-box input {
  flex: 1;
  background: transparent;
  border: none;
  outline: none;
  color: var(--text-main);
  font-size: 13px;
}
.search-box-icon {
  width: 16px;
  height: 16px;
  color: var(--text-muted);
}
.search-status-bar {
  font-size: 11px;
  color: var(--text-muted);
  margin-top: 8px;
  line-height: 1.3;
}

/* Search Results */
.search-result-item {
  padding: 12px;
  margin-bottom: 8px;
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: 10px;
  cursor: pointer;
  transition: all 0.2s ease;
}
.search-result-item:hover {
  border-color: var(--border-gold);
  background: rgba(205, 163, 81, 0.1);
}
.search-result-head {
  display: flex;
  justify-content: space-between;
  font-size: 12px;
  font-weight: 700;
  color: var(--text-gold-light);
  margin-bottom: 4px;
}
.search-result-snippet {
  font-size: 11.5px;
  color: var(--text-muted);
  line-height: 1.4;
}
.search-highlight {
  background: rgba(205, 163, 81, 0.4);
  color: #ffffff;
  padding: 0 2px;
  border-radius: 2px;
  font-weight: 700;
}

/* ==================== BOTTOM THUMBNAIL DRAWER ==================== */
.drawer-thumbnails {
  position: absolute;
  bottom: var(--bottom-bar-height);
  left: 0;
  right: 0;
  height: 150px;
  background: var(--bg-toolbar);
  backdrop-filter: blur(16px);
  border-top: 1px solid var(--border-gold);
  z-index: 45;
  display: flex;
  flex-direction: column;
  padding: 8px 16px;
  animation: slideUpDrawer 0.25s ease-out;
}
@keyframes slideUpDrawer {
  from { transform: translateY(100%); }
  to { transform: translateY(0); }
}

.drawer-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 6px;
}
.drawer-title {
  font-size: 11px;
  font-weight: 700;
  text-transform: uppercase;
  color: var(--text-gold);
  letter-spacing: 1px;
}
.thumbnails-track {
  display: flex;
  align-items: center;
  gap: 12px;
  overflow-x: auto;
  padding-bottom: 6px;
  flex: 1;
}

.thumb-item {
  height: 95px;
  min-width: 70px;
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: 6px;
  overflow: hidden;
  cursor: pointer;
  position: relative;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: space-between;
  padding: 2px;
  transition: all 0.2s ease;
  flex-shrink: 0;
}
.thumb-item:hover, .thumb-item.active {
  border-color: var(--text-gold);
  box-shadow: 0 0 10px rgba(205, 163, 81, 0.4);
  transform: translateY(-3px);
}
.thumb-item canvas, .thumb-item img {
  width: 100%;
  height: 72px;
  object-fit: contain;
  background: #ffffff;
}
.thumb-number {
  font-family: var(--font-mono);
  font-size: 10px;
  color: var(--text-muted);
  font-weight: 600;
}
.thumb-item.active .thumb-number {
  color: var(--text-gold);
  font-weight: 700;
}

/* ==================== BACKDROP ==================== */
.app-backdrop {
  position: absolute;
  inset: 0;
  background: rgba(0, 0, 0, 0.6);
  backdrop-filter: blur(4px);
  z-index: 42;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.3s ease;
}
.app-backdrop.open {
  opacity: 1;
  pointer-events: auto;
}

/* ==================== COVER SPLASH INTRO ==================== */
.cover-splash {
  position: absolute;
  inset: 0;
  background: radial-gradient(circle at center, #0f2d1e 0%, #06130d 100%);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 100;
  padding: 20px;
  transition: opacity 0.4s ease, visibility 0.4s ease;
}
.cover-splash.hidden {
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
}
.cover-card {
  max-width: 520px;
  width: 100%;
  background: rgba(8, 28, 18, 0.85);
  border: 1px solid var(--border-gold);
  border-radius: 24px;
  padding: 36px 28px;
  text-align: center;
  box-shadow: 0 24px 60px rgba(0, 0, 0, 0.8), var(--shadow-gold);
  backdrop-filter: blur(16px);
}
.cover-logo-wrap {
  width: 70px;
  height: 70px;
  margin: 0 auto 16px auto;
  border-radius: 50%;
  border: 2px solid var(--border-gold);
  background: #061d11;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 10px;
}
.cover-logo {
  max-width: 100%;
  max-height: 100%;
  object-fit: contain;
}
.cover-badge {
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 2px;
  color: var(--text-gold);
  text-transform: uppercase;
  display: block;
  margin-bottom: 8px;
}
.cover-title {
  font-family: var(--font-serif);
  font-size: 24px;
  font-weight: 700;
  color: #ffffff;
  line-height: 1.3;
  margin-bottom: 8px;
}
.cover-subtitle {
  font-size: 13px;
  color: var(--text-muted);
  margin-bottom: 28px;
}
.btn-start-reading {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  width: 100%;
  padding: 14px 24px;
  background: linear-gradient(135deg, #a67c2e 0%, #cda351 50%, #f3dfa2 100%);
  border: none;
  border-radius: 14px;
  color: #0b1510;
  font-family: var(--font-sans);
  font-size: 14px;
  font-weight: 800;
  letter-spacing: 1px;
  cursor: pointer;
  box-shadow: 0 10px 25px rgba(205, 163, 81, 0.4);
  transition: all 0.3s ease;
}
.btn-start-reading:hover {
  transform: translateY(-2px);
  filter: brightness(1.1);
  box-shadow: 0 14px 30px rgba(205, 163, 81, 0.5);
}
.cover-footer-info {
  margin-top: 20px;
  font-size: 12px;
  color: var(--text-muted);
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
}
.cover-footer-info strong {
  color: var(--text-gold-light);
}

/* ==================== LOADING OVERLAY ==================== */
.loading-overlay {
  position: absolute;
  inset: 0;
  background: rgba(6, 15, 10, 0.95);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 90;
  transition: opacity 0.3s ease, visibility 0.3s ease;
}
.loading-overlay.hidden {
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
}
.loading-spinner-box {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 14px;
  width: 260px;
  text-align: center;
}
.custom-spinner {
  width: 44px;
  height: 44px;
  border: 3px solid rgba(205, 163, 81, 0.2);
  border-top-color: var(--text-gold);
  border-radius: 50%;
  animation: spin 0.8s linear infinite;
}
@keyframes spin {
  to { transform: rotate(360deg); }
}
.loading-text {
  font-size: 14px;
  font-weight: 600;
  color: var(--text-main);
}
.loading-progress-bar-bg {
  width: 100%;
  height: 6px;
  background: var(--bg-card);
  border-radius: 4px;
  overflow: hidden;
  border: 1px solid var(--border-subtle);
}
.loading-progress-bar-fill {
  height: 100%;
  width: 0%;
  background: linear-gradient(90deg, #a67c2e, #cda351);
  transition: width 0.2s ease;
}
.loading-percentage {
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--text-gold);
}

/* ==================== ERROR DIALOG ==================== */
.error-dialog {
  position: absolute;
  inset: 0;
  background: rgba(0, 0, 0, 0.85);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 120;
  padding: 20px;
}
.error-box {
  max-width: 400px;
  background: var(--bg-card);
  border: 1px solid #e53e3e;
  border-radius: 16px;
  padding: 28px;
  text-align: center;
  box-shadow: var(--shadow-main);
}
.error-icon {
  width: 48px;
  height: 48px;
  color: #e53e3e;
  margin-bottom: 12px;
}
.error-title {
  font-size: 18px;
  font-weight: 700;
  margin-bottom: 8px;
  color: #ffffff;
}
.error-message {
  font-size: 13px;
  color: var(--text-muted);
  margin-bottom: 20px;
  line-height: 1.4;
}
.error-actions {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 12px;
}
.btn-primary {
  padding: 10px 20px;
  background: var(--text-gold);
  color: #0b1510;
  border: none;
  border-radius: 8px;
  font-weight: 700;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  gap: 6px;
}
.btn-secondary {
  padding: 10px 20px;
  background: transparent;
  color: var(--text-main);
  border: 1px solid var(--border-subtle);
  border-radius: 8px;
  font-weight: 600;
  text-decoration: none;
}

/* ==================== TOAST ==================== */
.app-toast {
  position: absolute;
  bottom: calc(var(--bottom-bar-height) + 16px);
  left: 50%;
  transform: translateX(-50%);
  background: rgba(14, 36, 27, 0.95);
  border: 1px solid var(--border-gold);
  border-radius: 30px;
  padding: 10px 20px;
  color: var(--text-gold-light);
  font-size: 13px;
  font-weight: 600;
  display: flex;
  align-items: center;
  gap: 8px;
  box-shadow: var(--shadow-main);
  z-index: 100;
  animation: toastFadeIn 0.3s ease;
}
@keyframes toastFadeIn {
  from { opacity: 0; transform: translate(-50%, 10px); }
  to { opacity: 1; transform: translate(-50%, 0); }
}
.toast-icon {
  width: 16px;
  height: 16px;
  color: var(--text-gold);
}

/* ==================== RESPONSIVE BREAKPOINTS ==================== */
@media (max-width: 768px) {
  .hidden-sm { display: none !important; }
  .nav-arrow {
    width: 36px;
    height: 48px;
    background: rgba(10, 22, 16, 0.85);
  }
  .nav-prev { left: 6px; }
  .nav-next { right: 6px; }
  .arrow-icon { width: 20px; height: 20px; }
  .quick-toc-btn { max-width: 160px; }
  .toolbar { padding: 0 8px; }
  .cover-card { padding: 24px 18px; }
  .cover-title { font-size: 20px; }
}

@media (max-width: 1024px) {
  .hidden-md { display: none !important; }
}