@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700&family=Outfit:wght@400;500;600;700;800&display=swap');

:root {
  /* Light Theme Variables */
  --bg-primary: #f6f8fb;
  --bg-secondary: #ffffff;
  --bg-tertiary: #f0f3f8;
  --text-primary: #1e293b;
  --text-secondary: #64748b;
  --text-muted: #94a3b8;
  --accent: #6366f1; /* Indigo */
  --accent-light: rgba(99, 102, 241, 0.1);
  --accent-hover: #4f46e5;
  --success: #10b981;
  --success-light: rgba(16, 185, 129, 0.1);
  --warning: #f59e0b;
  --danger: #ef4444;
  --border-color: #e2e8f0;
  --shadow-sm: 0 1px 3px rgba(0,0,0,0.05);
  --shadow-md: 0 4px 6px -1px rgba(0,0,0,0.05), 0 2px 4px -1px rgba(0,0,0,0.03);
  --shadow-lg: 0 10px 15px -3px rgba(99, 102, 241, 0.05), 0 4px 6px -2px rgba(99, 102, 241, 0.03);
  --glass-bg: rgba(255, 255, 255, 0.7);
  --glass-border: rgba(255, 255, 255, 0.4);
  --glass-blur: blur(12px);
  --radius-sm: 8px;
  --radius-md: 14px;
  --radius-lg: 24px;
  --font-title: 'Outfit', sans-serif;
  --font-body: 'Inter', sans-serif;
  --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

[data-theme="dark"] {
  /* Dark Theme Variables */
  --bg-primary: #0b0f19;
  --bg-secondary: #131b2e;
  --bg-tertiary: #1b2641;
  --text-primary: #f8fafc;
  --text-secondary: #94a3b8;
  --text-muted: #64748b;
  --accent: #818cf8; /* Lighter Indigo */
  --accent-light: rgba(129, 140, 248, 0.15);
  --accent-hover: #6366f1;
  --success: #34d399;
  --success-light: rgba(52, 211, 153, 0.15);
  --border-color: #223150;
  --shadow-sm: 0 1px 3px rgba(0,0,0,0.3);
  --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.25);
  --shadow-lg: 0 10px 25px -5px rgba(0, 0, 0, 0.35);
  --glass-bg: rgba(19, 27, 46, 0.7);
  --glass-border: rgba(34, 49, 80, 0.5);
}

/* Base Styles */
* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

body {
  font-family: var(--font-body);
  background-color: var(--bg-primary);
  color: var(--text-primary);
  line-height: 1.6;
  transition: var(--transition);
  overflow-x: hidden;
}

/* Scrollbar Customization */
::-webkit-scrollbar {
  width: 8px;
  height: 8px;
}
::-webkit-scrollbar-track {
  background: var(--bg-primary);
}
::-webkit-scrollbar-thumb {
  background: var(--border-color);
  border-radius: var(--radius-sm);
}
::-webkit-scrollbar-thumb:hover {
  background: var(--text-muted);
}

/* Glassmorphism Classes */
.glass-panel {
  background: var(--glass-bg);
  backdrop-filter: var(--glass-blur);
  -webkit-backdrop-filter: var(--glass-blur);
  border: 1px solid var(--glass-border);
  box-shadow: var(--shadow-md);
  border-radius: var(--radius-md);
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 10px 20px;
  border-radius: var(--radius-sm);
  font-family: var(--font-title);
  font-weight: 500;
  font-size: 0.95rem;
  border: none;
  cursor: pointer;
  transition: var(--transition);
  text-decoration: none;
}

.btn-primary {
  background-color: var(--accent);
  color: #ffffff;
}
.btn-primary:hover {
  background-color: var(--accent-hover);
  transform: translateY(-1px);
  box-shadow: 0 4px 12px rgba(99, 102, 241, 0.3);
}

.btn-secondary {
  background-color: var(--bg-tertiary);
  color: var(--text-primary);
  border: 1px solid var(--border-color);
}
.btn-secondary:hover {
  background-color: var(--border-color);
}

.btn-danger {
  background-color: var(--danger);
  color: #ffffff;
}
.btn-danger:hover {
  opacity: 0.9;
}

.btn-icon {
  padding: 8px;
  border-radius: 50%;
  aspect-ratio: 1;
}

/* Header/Navbar Styles */
header {
  position: sticky;
  top: 0;
  width: 100%;
  z-index: 50;
  padding: 12px 24px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  border-bottom: 1px solid var(--border-color);
  background: var(--glass-bg);
  backdrop-filter: var(--glass-blur);
  -webkit-backdrop-filter: var(--glass-blur);
}

.logo {
  display: flex;
  align-items: center;
  gap: 10px;
  font-family: var(--font-title);
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--text-primary);
  text-decoration: none;
  background: linear-gradient(135deg, var(--accent), #a78bfa);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 15px;
}

.nav-item {
  color: var(--text-secondary);
  text-decoration: none;
  font-weight: 500;
  padding: 8px 12px;
  border-radius: var(--radius-sm);
  transition: var(--transition);
}
.nav-item:hover {
  color: var(--text-primary);
  background-color: var(--bg-tertiary);
}
.nav-item.active {
  color: var(--accent);
  background-color: var(--accent-light);
}

.user-profile-menu {
  position: relative;
  display: flex;
  align-items: center;
  gap: 12px;
}

.user-avatar {
  width: 36px;
  height: 36px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--accent), #c084fc);
  color: #fff;
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-title);
  font-weight: 600;
  font-size: 1.1rem;
  cursor: pointer;
}

/* Search Area / Google-style Home */
.main-container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 40px 20px;
}

.home-layout {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  min-height: calc(85vh - 70px);
  text-align: center;
}

.home-title {
  font-family: var(--font-title);
  font-size: 3rem;
  font-weight: 800;
  margin-bottom: 8px;
  background: linear-gradient(135deg, var(--text-primary) 30%, var(--accent));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.home-subtitle {
  color: var(--text-secondary);
  margin-bottom: 40px;
  font-size: 1.1rem;
}

.search-box-wrapper {
  position: relative;
  width: 100%;
  max-width: 680px;
  margin-bottom: 24px;
}

.search-input-container {
  display: flex;
  align-items: center;
  background: var(--bg-secondary);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: 6px 16px;
  box-shadow: var(--shadow-md);
  transition: var(--transition);
}

.search-input-container:focus-within {
  border-color: var(--accent);
  box-shadow: 0 10px 25px -5px rgba(99, 102, 241, 0.15), 0 8px 10px -6px rgba(99, 102, 241, 0.1);
  transform: translateY(-1px);
}

.search-icon {
  color: var(--text-muted);
  margin-right: 12px;
  display: flex;
}

.search-input {
  width: 100%;
  border: none;
  background: transparent;
  font-size: 1.1rem;
  font-family: var(--font-body);
  color: var(--text-primary);
  outline: none;
  padding: 8px 0;
}

.clear-search-btn {
  background: transparent;
  border: none;
  color: var(--text-muted);
  cursor: pointer;
  padding: 4px;
  display: none;
}
.clear-search-btn:hover {
  color: var(--text-primary);
}

.filter-toggle-btn {
  background: var(--bg-tertiary);
  border: 1px solid var(--border-color);
  color: var(--text-secondary);
  padding: 6px 12px;
  border-radius: var(--radius-sm);
  margin-left: 8px;
  cursor: pointer;
  display: flex;
  align-items: center;
  gap: 6px;
  font-family: var(--font-title);
  font-size: 0.85rem;
}
.filter-toggle-btn:hover {
  color: var(--text-primary);
  border-color: var(--text-muted);
}

/* Autocomplete suggestions */
.suggestions-dropdown {
  position: absolute;
  top: 105%;
  left: 0;
  width: 100%;
  background: var(--bg-secondary);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-lg);
  z-index: 40;
  display: none;
  text-align: left;
  overflow: hidden;
}

.suggestion-item {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 12px 16px;
  cursor: pointer;
  color: var(--text-primary);
  font-size: 0.95rem;
  border-bottom: 1px solid var(--bg-primary);
  transition: var(--transition);
}
.suggestion-item:last-child {
  border-bottom: none;
}
.suggestion-item:hover {
  background-color: var(--bg-tertiary);
  color: var(--accent);
}

.suggestion-icon {
  color: var(--text-muted);
}

.suggestion-badge {
  font-size: 0.75rem;
  padding: 2px 6px;
  border-radius: 4px;
  background-color: var(--bg-tertiary);
  color: var(--text-secondary);
  margin-left: auto;
}

/* Advanced Search Filters */
.advanced-filters-panel {
  width: 100%;
  max-width: 680px;
  margin-top: 10px;
  padding: 20px;
  border-radius: var(--radius-md);
  display: none;
  text-align: left;
}

.filters-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(130px, 1fr));
  gap: 12px;
  margin-bottom: 14px;
}

.filter-group {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.filter-label {
  font-size: 0.78rem;
  font-weight: 600;
  color: var(--text-secondary);
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.filter-select {
  padding: 8px 12px;
  border-radius: var(--radius-sm);
  border: 1px solid var(--border-color);
  background-color: var(--bg-secondary);
  color: var(--text-primary);
  outline: none;
  font-size: 0.9rem;
  width: 100%;
}
.filter-select:focus {
  border-color: var(--accent);
}

/* Verse of the Day Card */
.verse-of-the-day {
  width: 100%;
  max-width: 600px;
  padding: 28px;
  position: relative;
  overflow: hidden;
  margin-top: 20px;
  border-radius: var(--radius-md);
}

.verse-of-the-day::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 4px;
  height: 100%;
  background: linear-gradient(to bottom, var(--accent), #c084fc);
}

.votd-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 12px;
}

.votd-label {
  font-family: var(--font-title);
  font-size: 0.85rem;
  font-weight: 700;
  color: var(--accent);
  text-transform: uppercase;
  letter-spacing: 1px;
}

.votd-text {
  font-family: var(--font-title);
  font-size: 1.25rem;
  font-weight: 500;
  font-style: italic;
  color: var(--text-primary);
  margin-bottom: 14px;
}

.votd-ref {
  font-weight: 600;
  color: var(--text-secondary);
  display: flex;
  justify-content: space-between;
}

.votd-actions {
  display: flex;
  gap: 8px;
}

/* Search results and reading layout */
.content-layout {
  display: grid;
  grid-template-columns: 2fr 1fr;
  gap: 30px;
  margin-top: 30px;
}

@media (max-width: 900px) {
  .content-layout {
    grid-template-columns: 1fr;
  }
}

/* Search result items */
.results-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 20px;
}

.verse-card {
  padding: 24px;
  margin-bottom: 16px;
  position: relative;
  transition: var(--transition);
}
.verse-card:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}

.verse-card-header {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  margin-bottom: 10px;
  color: var(--text-secondary);
}

.verse-card-ref {
  font-family: var(--font-title);
  font-weight: 700;
  color: var(--accent);
  text-decoration: none;
}
.verse-card-ref:hover {
  text-decoration: underline;
}

.verse-card-version {
  font-size: 0.75rem;
  padding: 2px 6px;
  border-radius: 4px;
  background-color: var(--bg-tertiary);
  font-weight: 600;
}

.verse-card-text {
  font-size: 1.05rem;
  margin-bottom: 15px;
}

.highlight {
  background: linear-gradient(120deg, rgba(254, 240, 138, 0.4) 0%, rgba(254, 240, 138, 0.6) 100%);
  border-bottom: 2px solid rgba(234, 179, 8, 0.3);
  padding: 0 2px;
  border-radius: 2px;
}

[data-theme="dark"] .highlight {
  background: linear-gradient(120deg, rgba(234, 179, 8, 0.15) 0%, rgba(234, 179, 8, 0.25) 100%);
  border-bottom-color: rgba(234, 179, 8, 0.5);
  color: #fff;
}

.verse-tags-list {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin-bottom: 16px;
}

.verse-tag-item {
  font-size: 0.75rem;
  padding: 2px 8px;
  border-radius: 12px;
  background-color: var(--accent-light);
  color: var(--accent);
  display: flex;
  align-items: center;
  gap: 4px;
}

.verse-actions-toolbar {
  display: flex;
  gap: 12px;
  border-top: 1px solid var(--border-color);
  padding-top: 12px;
}

.action-btn {
  background: transparent;
  border: none;
  color: var(--text-secondary);
  cursor: pointer;
  display: flex;
  align-items: center;
  gap: 6px;
  font-size: 0.82rem;
  transition: var(--transition);
}
.action-btn:hover {
  color: var(--accent);
}

/* Sidebar reader */
.reader-panel {
  position: sticky;
  top: 90px;
  height: calc(100vh - 120px);
  display: flex;
  flex-direction: column;
  overflow: hidden;
}

.reader-header {
  padding: 20px;
  border-bottom: 1px solid var(--border-color);
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.reader-title-bar {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.reader-title {
  font-family: var(--font-title);
  font-size: 1.25rem;
  font-weight: 700;
}

.reader-selectors {
  display: flex;
  gap: 8px;
}

.reader-select {
  flex: 1;
  padding: 6px 10px;
  font-size: 0.85rem;
}

.reader-content {
  flex: 1;
  overflow-y: auto;
  padding: 20px;
}

.reader-verse {
  margin-bottom: 12px;
  font-size: 0.98rem;
  cursor: pointer;
  padding: 4px;
  border-radius: 4px;
  transition: var(--transition);
}
.reader-verse:hover {
  background-color: var(--bg-tertiary);
}

.reader-verse-num {
  font-weight: 700;
  color: var(--accent);
  margin-right: 6px;
  font-size: 0.85rem;
}

/* Dashboard Tabs Layout */
.dashboard-container {
  margin-top: 20px;
}

.tab-headers {
  display: flex;
  border-bottom: 1px solid var(--border-color);
  margin-bottom: 20px;
  gap: 8px;
}

.tab-btn {
  background: transparent;
  border: none;
  color: var(--text-secondary);
  font-family: var(--font-title);
  font-weight: 600;
  font-size: 1rem;
  padding: 10px 16px;
  cursor: pointer;
  border-bottom: 2px solid transparent;
  transition: var(--transition);
}
.tab-btn:hover {
  color: var(--text-primary);
}
.tab-btn.active {
  color: var(--accent);
  border-bottom-color: var(--accent);
}

.tab-content {
  display: none;
}
.tab-content.active {
  display: block;
}

/* Notebook / Note Styles */
.notes-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 16px;
}

.note-card {
  padding: 20px;
  display: flex;
  flex-direction: column;
  height: 250px;
}

.note-title {
  font-family: var(--font-title);
  font-weight: 700;
  font-size: 1.15rem;
  margin-bottom: 6px;
}

.note-date {
  font-size: 0.75rem;
  color: var(--text-muted);
  margin-bottom: 10px;
}

.note-excerpt {
  color: var(--text-secondary);
  font-size: 0.9rem;
  flex: 1;
  overflow: hidden;
  text-overflow: ellipsis;
  display: -webkit-box;
  -webkit-line-clamp: 4;
  -webkit-box-orient: vertical;
}

.note-linked-verses {
  font-size: 0.78rem;
  color: var(--accent);
  font-weight: 600;
  margin-bottom: 10px;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.note-card-actions {
  display: flex;
  justify-content: flex-end;
  gap: 8px;
  border-top: 1px solid var(--border-color);
  padding-top: 10px;
  margin-top: auto;
}

/* Custom Lists */
.lists-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 16px;
}

.list-card {
  padding: 20px;
  cursor: pointer;
  transition: var(--transition);
}

.list-card-title {
  font-family: var(--font-title);
  font-weight: 700;
  font-size: 1.2rem;
  color: var(--accent);
}

.list-card-desc {
  font-size: 0.88rem;
  color: var(--text-secondary);
  margin: 8px 0;
  height: 40px;
  overflow: hidden;
  text-overflow: ellipsis;
}

.list-card-count {
  font-size: 0.75rem;
  background-color: var(--bg-tertiary);
  padding: 4px 8px;
  border-radius: var(--radius-sm);
  display: inline-block;
}

/* Modal Overlay */
.modal-overlay {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background-color: rgba(0,0,0,0.5);
  backdrop-filter: blur(4px);
  z-index: 100;
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  pointer-events: none;
  transition: var(--transition);
}
.modal-overlay.active {
  opacity: 1;
  pointer-events: auto;
}

.modal-card {
  background-color: var(--bg-secondary);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-lg);
  width: 90%;
  max-width: 520px;
  max-height: 85vh;
  overflow-y: auto;
  transform: scale(0.9);
  transition: var(--transition);
  padding: 24px;
}
.modal-overlay.active .modal-card {
  transform: scale(1);
}

.modal-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 20px;
}

.modal-title {
  font-family: var(--font-title);
  font-weight: 700;
  font-size: 1.3rem;
}

.modal-close-btn {
  background: transparent;
  border: none;
  font-size: 1.5rem;
  cursor: pointer;
  color: var(--text-secondary);
}
.modal-close-btn:hover {
  color: var(--text-primary);
}

/* Form Styles */
.form-group {
  margin-bottom: 16px;
}
.form-group label {
  display: block;
  font-weight: 600;
  font-size: 0.85rem;
  color: var(--text-secondary);
  margin-bottom: 6px;
}
.form-control {
  width: 100%;
  padding: 10px 14px;
  border-radius: var(--radius-sm);
  border: 1px solid var(--border-color);
  background-color: var(--bg-secondary);
  color: var(--text-primary);
  outline: none;
  font-family: var(--font-body);
}
.form-control:focus {
  border-color: var(--accent);
}

/* Auth Cards */
.auth-page {
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 90vh;
}

.auth-card {
  width: 100%;
  max-width: 420px;
  padding: 32px;
}

.auth-header {
  text-align: center;
  margin-bottom: 28px;
}

.auth-title {
  font-family: var(--font-title);
  font-size: 2rem;
  font-weight: 800;
}

.auth-switch {
  text-align: center;
  margin-top: 16px;
  font-size: 0.9rem;
  color: var(--text-secondary);
}
.auth-switch a {
  color: var(--accent);
  text-decoration: none;
  font-weight: 600;
}
.auth-switch a:hover {
  text-decoration: underline;
}

/* Admin Dashboard CSS */
.admin-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 24px;
  margin-top: 24px;
}

@media (max-width: 768px) {
  .admin-grid {
    grid-template-columns: 1fr;
  }
}

.admin-card {
  padding: 24px;
}

.admin-table-container {
  overflow-x: auto;
  margin-top: 14px;
}

.admin-table {
  width: 100%;
  border-collapse: collapse;
  text-align: left;
}

.admin-table th, .admin-table td {
  padding: 12px;
  border-bottom: 1px solid var(--border-color);
}

.admin-table th {
  background-color: var(--bg-tertiary);
  font-weight: 600;
  font-size: 0.85rem;
  color: var(--text-secondary);
  text-transform: uppercase;
}

.badge {
  padding: 3px 8px;
  border-radius: 12px;
  font-size: 0.75rem;
  font-weight: 600;
}

.badge-admin {
  background-color: rgba(239, 68, 68, 0.15);
  color: var(--danger);
}

.badge-user {
  background-color: rgba(99, 102, 241, 0.15);
  color: var(--accent);
}

/* File Upload drag-and-drop */
.file-drop-area {
  border: 2px dashed var(--border-color);
  border-radius: var(--radius-md);
  padding: 30px;
  text-align: center;
  cursor: pointer;
  transition: var(--transition);
  margin-bottom: 16px;
  background-color: var(--bg-primary);
}
.file-drop-area:hover, .file-drop-area.dragover {
  border-color: var(--accent);
  background-color: var(--accent-light);
}

.file-drop-icon {
  font-size: 2rem;
  color: var(--text-muted);
  margin-bottom: 10px;
}

.file-drop-text {
  font-weight: 600;
  color: var(--text-secondary);
}

.import-status-box {
  padding: 12px;
  border-radius: var(--radius-sm);
  margin-top: 14px;
  display: none;
}

.import-status-success {
  background-color: var(--success-light);
  color: var(--success);
  border: 1px solid rgba(16, 185, 129, 0.3);
}

.import-status-error {
  background-color: rgba(239, 68, 68, 0.1);
  color: var(--danger);
  border: 1px solid rgba(239, 68, 68, 0.3);
}

/* Utility classes */
.hidden {
  display: none !important;
}

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

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

/* Toast Notifications Container */
.toast-container {
  position: fixed;
  bottom: 24px;
  right: 24px;
  display: flex;
  flex-direction: column;
  gap: 10px;
  z-index: 9999;
}

.toast {
  background: var(--glass-bg);
  backdrop-filter: var(--glass-blur);
  -webkit-backdrop-filter: var(--glass-blur);
  border: 1px solid var(--glass-border);
  box-shadow: var(--shadow-lg);
  border-radius: var(--radius-sm);
  padding: 12px 20px;
  min-width: 300px;
  max-width: 420px;
  color: var(--text-primary);
  font-family: var(--font-body);
  font-size: 0.92rem;
  display: flex;
  align-items: center;
  gap: 12px;
  transform: translateY(20px);
  opacity: 0;
  transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  border-left: 4px solid var(--accent);
}

.toast.active {
  transform: translateY(0);
  opacity: 1;
}

.toast-success {
  border-left-color: var(--success);
}

.toast-error {
  border-left-color: var(--danger);
}

.toast-warning {
  border-left-color: var(--warning);
}

/* Card Generator Layout */
.card-generator-layout {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 24px;
  margin-top: 10px;
}

@media (max-width: 850px) {
  .card-generator-layout {
    grid-template-columns: 1fr;
  }
}

.generator-control-panel {
  padding: 24px;
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.card-preview-container {
  width: 100%;
  max-width: 380px;
  aspect-ratio: 1;
  overflow: hidden;
  border-radius: var(--radius-md);
  border: 1px solid var(--glass-border);
  box-shadow: var(--shadow-lg);
  display: flex;
  align-items: center;
  justify-content: center;
  background-color: var(--bg-tertiary);
}

#card-canvas {
  width: 100%;
  height: 100%;
  object-fit: contain;
  display: block;
}

.bg-thumbnail {
  aspect-ratio: 1;
  border-radius: var(--radius-sm);
  border: 2px solid transparent;
  cursor: pointer;
  background-size: cover;
  background-position: center;
  transition: var(--transition);
}

.bg-thumbnail:hover {
  transform: scale(1.05);
}

.bg-thumbnail.selected {
  border-color: var(--accent);
  box-shadow: 0 0 0 2px rgba(99, 102, 241, 0.3);
}

/* ==========================================================================
   ACADEMIA DE JUEGOS BÍBLICOS - ESTILOS PREMIUM
   ========================================================================== */

/* Animaciones y Transiciones */
@keyframes shake {
  0%, 100% { transform: translateX(0); }
  15%, 45%, 75% { transform: translateX(-8px); }
  30%, 60%, 90% { transform: translateX(8px); }
}

@keyframes success-bounce {
  0%, 100% { transform: scale(1); }
  50% { transform: scale(1.06); }
}

@keyframes pulse-fire {
  0%, 100% { transform: scale(1); filter: drop-shadow(0 0 2px rgba(239, 68, 68, 0.2)); }
  50% { transform: scale(1.15); filter: drop-shadow(0 0 8px rgba(239, 68, 68, 0.6)); }
}

/* Racha (Fuego) Animado */
.streak-active {
  animation: pulse-fire 2s infinite ease-in-out;
  display: inline-block;
}

.games-hub-layout {
  display: grid;
  grid-template-columns: 2fr 1fr;
  gap: 24px;
  margin-top: 10px;
}

/* Selección de Juegos: Tarjetas Animadas */
.games-header-grid .glass-panel {
  transition: var(--transition);
}
.games-header-grid .glass-panel:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
  border-color: var(--accent);
}

.list-card {
  position: relative;
  overflow: hidden;
  transition: var(--transition);
  border: 1px solid var(--border-color);
}

.list-card:hover {
  transform: translateY(-5px);
  box-shadow: var(--shadow-lg);
  border-color: var(--accent);
  background: linear-gradient(145deg, var(--glass-bg), var(--accent-light));
}

.list-card div[style*="font-size: 2rem"] {
  transition: transform 0.4s cubic-bezier(0.175, 0.885, 0.32, 1.275);
}

.list-card:hover div[style*="font-size: 2rem"] {
  transform: scale(1.2) rotate(8deg);
}

/* Botones de Verdadero / Falso */
.tf-btn {
  transition: var(--transition) !important;
  font-family: var(--font-title);
  border-radius: var(--radius-md) !important;
  box-shadow: var(--shadow-sm);
  background-color: var(--bg-secondary) !important;
}

.tf-btn:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}

.tf-btn[style*="var(--success)"]:hover {
  background-color: var(--success-light) !important;
}

.tf-btn[style*="var(--danger)"]:hover {
  background-color: rgba(239, 68, 68, 0.08) !important;
}

/* Cartas de Memoria */
#game-answer-zone .glass-panel {
  user-select: none;
  transition: var(--transition);
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-title);
  border-radius: var(--radius-sm);
  box-shadow: var(--shadow-sm);
}

#game-answer-zone .glass-panel:hover:not(.matched) {
  transform: scale(1.03);
  border-color: var(--accent);
  box-shadow: var(--shadow-md);
}

#game-answer-zone .glass-panel.matched {
  animation: success-bounce 0.5s ease-out;
  cursor: default;
  color: var(--success);
}

/* Ordenar Versículo: Área de respuesta */
#order-box-answer {
  background-color: var(--bg-secondary) !important;
  transition: var(--transition);
}

#order-box-answer .verse-tag-item {
  font-family: var(--font-body);
  font-weight: 500;
  border-radius: var(--radius-sm);
  border: 1px solid var(--accent);
  background-color: var(--accent-light);
  color: var(--accent);
  transition: var(--transition);
}

#order-box-answer .verse-tag-item:hover {
  background-color: var(--danger);
  color: white;
  border-color: var(--danger);
}

/* Confeti Canvas Overlay */
#game-confetti-canvas {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  pointer-events: none;
  z-index: 99;
}

/* ==========================================================================
   DISEÑO 100% RESPONSIVO - MOBILE-FIRST & PWA OPTIMIZED
   ========================================================================== */

@media (max-width: 990px) {
  .games-hub-layout, .card-generator-layout {
    grid-template-columns: 1fr !important;
  }
}

@media (max-width: 768px) {
  /* Contenedores Principales */
  .main-container {
    padding: 16px 12px;
  }

  .home-layout {
    min-height: calc(75vh - 60px);
  }

  .home-title {
    font-size: 2.2rem;
  }

  .home-subtitle {
    font-size: 0.95rem;
    margin-bottom: 24px;
  }

  /* Buscador */
  .search-box-wrapper {
    margin-bottom: 16px;
  }

  .search-input-container {
    padding: 4px 12px;
  }

  .search-input {
    font-size: 0.95rem;
  }

  /* Versículo del Día */
  .verse-of-the-day {
    padding: 16px;
    margin-top: 10px;
  }

  .votd-text {
    font-size: 1.05rem;
  }

  /* Resultados y Lector en Móviles */
  .content-layout {
    grid-template-columns: 1fr;
    gap: 20px;
  }

  .reader-panel {
    position: static;
    height: auto;
    max-height: 50vh;
  }

  /* Creador de Tarjetas */
  .card-generator-layout {
    grid-template-columns: 1fr;
    gap: 16px;
  }

  .card-preview-container {
    max-width: 100%;
    margin: 0 auto;
  }

  .generator-control-panel {
    padding: 16px;
  }

  /* Modales */
  .modal-card {
    padding: 16px;
    width: 95%;
  }

  /* Tablas de Administración */
  .admin-grid {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 600px) {
  /* Cabecera y Menús */
  header {
    padding: 10px 12px;
  }

  .logo {
    font-size: 1.15rem;
    gap: 6px;
  }

  .logo svg {
    width: 22px;
    height: 22px;
  }

  #user-name-display {
    display: none !important;
  }

  .user-profile-menu {
    gap: 8px;
  }

  /* Barra de Navegación Móvil Estilo App (PWA) */
  .nav-links {
    position: fixed;
    bottom: 0;
    left: 0;
    width: 100%;
    height: 60px;
    background: var(--bg-secondary);
    border-top: 1px solid var(--border-color);
    box-shadow: 0 -4px 12px rgba(0, 0, 0, 0.08);
    display: flex !important;
    justify-content: space-around;
    align-items: center;
    padding: 0 8px;
    z-index: 999;
  }

  .nav-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    font-size: 0.72rem;
    font-weight: 600;
    padding: 4px 0;
    flex: 1;
    gap: 2px;
    background: transparent !important;
    border-radius: 0;
    color: var(--text-secondary);
  }

  .nav-item.active {
    color: var(--accent) !important;
    border-top: 3px solid var(--accent);
    padding-top: 1px;
    background-color: transparent !important;
  }

  #nav-search::before {
    content: '🔍';
    font-size: 1.1rem;
    margin-bottom: 2px;
  }

  #nav-games::before {
    content: '🎮';
    font-size: 1.1rem;
    margin-bottom: 2px;
  }

  #nav-dashboard::before {
    content: '👤';
    font-size: 1.1rem;
    margin-bottom: 2px;
  }

  /* Ajustar espacio inferior del body para la barra fija */
  body {
    padding-bottom: 76px;
  }

  /* Pestañas del Dashboard */
  .tab-headers {
    overflow-x: auto;
    white-space: nowrap;
    padding-bottom: 2px;
    -webkit-overflow-scrolling: touch;
    gap: 4px;
  }

  .tab-btn {
    padding: 8px 12px;
    font-size: 0.85rem;
    flex-shrink: 0;
  }

  /* Grid de juegos y notas */
  .lists-grid, .notes-grid {
    grid-template-columns: 1fr !important;
  }

  .games-header-grid {
    grid-template-columns: 1fr !important;
  }

  /* Toasts en Móviles */
  .toast-container {
    bottom: 80px; /* Sobre la barra de navegación móvil */
    right: 12px;
    left: 12px;
  }

  .toast {
    min-width: auto;
    width: 100%;
  }

  /* Arena de Juego y Cartas de Memoria */
  #game-answer-zone div[style*="grid-template-columns: repeat(4, 1fr)"] {
    grid-template-columns: repeat(2, 1fr) !important;
    gap: 8px !important;
  }

  #game-answer-zone .glass-panel {
    height: 68px !important;
    font-size: 0.72rem !important;
  }
}