/* CSS Reset & Variables */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
  font-family: 'Inter', 'Noto Sans TC', sans-serif;
  -webkit-font-smoothing: antialiased;
}

:root {
  /* Light Theme Color tokens */
  --bg-app: #f4f6f9;
  --bg-header: rgba(255, 255, 255, 0.85);
  --bg-card: rgba(255, 255, 255, 0.8);
  --bg-input: #ffffff;
  --border-card: rgba(226, 232, 240, 0.8);
  --shadow-card: 0 10px 30px rgba(0, 0, 0, 0.04), 0 1px 3px rgba(0, 0, 0, 0.02);
  --shadow-hover: 0 20px 40px rgba(99, 102, 241, 0.08), 0 1px 3px rgba(99, 102, 241, 0.02);
  --text-primary: #1e293b;
  --text-secondary: #475569;
  --text-muted: #94a3b8;
  
  /* Primary Gradients - Sleek Indigo to Purple */
  --primary-color: #4f46e5;
  --primary-gradient: linear-gradient(135deg, #6366f1 0%, #4f46e5 100%);
  --primary-hover: linear-gradient(135deg, #4f46e5 0%, #3730a3 100%);
  
  /* Secondary Accent - Emerald Green for Success */
  --accent-color: #10b981;
  --accent-gradient: linear-gradient(135deg, #34d399 0%, #059669 100%);
  
  /* Danger Gradient - Coral Red */
  --danger-gradient: linear-gradient(135deg, #f87171 0%, #ef4444 100%);
  
  /* Utilities */
  --radius-sm: 8px;
  --radius-md: 16px;
  --radius-lg: 24px;
  --glass-blur: blur(12px);
  --transition-smooth: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

/* Dark Theme overrides */
body.dark-theme {
  --bg-app: #090d16;
  --bg-header: rgba(15, 23, 42, 0.85);
  --bg-card: rgba(22, 32, 58, 0.7);
  --bg-input: #111a2e;
  --border-card: rgba(255, 255, 255, 0.06);
  --shadow-card: 0 10px 30px rgba(0, 0, 0, 0.3), 0 1px 5px rgba(0, 0, 0, 0.1);
  --shadow-hover: 0 20px 40px rgba(99, 102, 241, 0.15), 0 1px 5px rgba(99, 102, 241, 0.05);
  --text-primary: #f8fafc;
  --text-secondary: #cbd5e1;
  --text-muted: #64748b;
  
  --primary-color: #818cf8;
  --primary-gradient: linear-gradient(135deg, #818cf8 0%, #6366f1 100%);
  --primary-hover: linear-gradient(135deg, #6366f1 0%, #4f46e5 100%);
}

/* Global Styles */
body {
  background-color: var(--bg-app);
  color: var(--text-primary);
  min-height: 100vh;
  transition: var(--transition-smooth);
}

.app-layout {
  display: flex;
  flex-direction: column;
  min-height: 100vh;
}

/* Header Design */
.main-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  height: 70px;
  background-color: var(--bg-header);
  border-bottom: 1px solid var(--border-card);
  backdrop-filter: var(--glass-blur);
  z-index: 100;
  transition: var(--transition-smooth);
}

.header-container {
  max-width: 1200px;
  height: 100%;
  margin: 0 auto;
  padding: 0 2rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.brand {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  text-decoration: none;
  color: var(--text-primary);
  font-weight: 700;
  font-size: 1.25rem;
  font-family: 'Outfit', sans-serif;
  transition: var(--transition-smooth);
}

.brand:hover {
  transform: translateY(-1px);
  opacity: 0.9;
}

.brand-icon {
  width: 28px;
  height: 28px;
  color: var(--primary-color);
}

/* Navigation Tabs */
.nav-tabs {
  display: flex;
  gap: 0.5rem;
}

.tab-btn {
  background: transparent;
  border: none;
  padding: 0.6rem 1.2rem;
  font-size: 0.95rem;
  font-weight: 600;
  color: var(--text-secondary);
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition: var(--transition-smooth);
}

.tab-btn:hover {
  background-color: rgba(99, 102, 241, 0.08);
  color: var(--primary-color);
}

.tab-btn.active {
  background: var(--primary-gradient);
  color: #ffffff;
  box-shadow: 0 4px 12px rgba(79, 70, 229, 0.25);
}

.header-actions {
  display: flex;
  align-items: center;
  gap: 1rem;
}

/* Badges */
.status-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  padding: 0.35rem 0.75rem;
  border-radius: 50px;
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.05em;
  text-transform: uppercase;
}

.status-badge.offline {
  background-color: rgba(245, 158, 11, 0.1);
  color: #d97706;
}

.status-badge.online {
  background-color: rgba(16, 185, 129, 0.1);
  color: #059669;
}

.status-badge .indicator {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background-color: currentColor;
}

.status-badge.online .indicator {
  box-shadow: 0 0 8px #10b981;
}

/* Theme Toggle Button */
.icon-btn {
  background: var(--bg-input);
  border: 1px solid var(--border-card);
  width: 40px;
  height: 40px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  color: var(--text-primary);
  box-shadow: var(--shadow-card);
  transition: var(--transition-smooth);
}

.icon-btn:hover {
  transform: scale(1.05);
  box-shadow: var(--shadow-hover);
}

/* Main Container Layout */
.main-content {
  flex: 1;
  max-width: 1200px;
  width: 100%;
  margin: 70px auto 0 auto;
  padding: 2.5rem 2rem;
  position: relative;
}

/* View Pane Switching */
.view-pane {
  display: none;
  animation: fadeIn 0.4s ease-out forwards;
}

.view-pane.active {
  display: block;
}

@keyframes fadeIn {
  from {
    opacity: 0;
    transform: translateY(10px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* Glass Cards */
.glass-card {
  background-color: var(--bg-card);
  border: 1px solid var(--border-card);
  backdrop-filter: var(--glass-blur);
  border-radius: var(--radius-md);
  padding: 2rem;
  box-shadow: var(--shadow-card);
  transition: var(--transition-smooth);
  height: 100%;
}

.glass-card:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-hover);
}

.card-title {
  font-size: 1.25rem;
  font-weight: 700;
  margin-bottom: 1.5rem;
  color: var(--text-primary);
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.card-subtitle {
  font-size: 0.9rem;
  color: var(--text-secondary);
  margin-bottom: 1.5rem;
  margin-top: -1rem;
}

/* Grid Layout definitions */
.grid-layout {
  display: grid;
  grid-template-columns: repeat(12, 1fr);
  gap: 1.5rem;
  margin-bottom: 1.5rem;
}

.card-col {
  height: 100%;
}

.span-12 { grid-column: span 12; }
.span-8 { grid-column: span 8; }
.span-7 { grid-column: span 7; }
.span-6 { grid-column: span 6; }
.span-5 { grid-column: span 5; }
.span-4 { grid-column: span 4; }
.span-3 { grid-column: span 3; }

/* Dashboard Specific Styles */
.dashboard-hero {
  background: linear-gradient(135deg, rgba(99, 102, 241, 0.08) 0%, rgba(139, 92, 246, 0.08) 100%);
  border: 1px solid var(--border-card);
  border-radius: var(--radius-md);
  padding: 2.5rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 2rem;
}

.welcome-title {
  font-size: 2.25rem;
  font-weight: 800;
  letter-spacing: -0.02em;
  margin-bottom: 0.5rem;
  font-family: 'Outfit', sans-serif;
}

.welcome-title span {
  background: var(--primary-gradient);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.welcome-subtitle {
  color: var(--text-secondary);
  font-size: 1.05rem;
}

.streak-card {
  background-color: var(--bg-card);
  border: 1px solid var(--border-card);
  border-radius: var(--radius-md);
  padding: 1.5rem 2rem;
  text-align: center;
  box-shadow: var(--shadow-card);
  display: flex;
  flex-direction: column;
  align-items: center;
}

.streak-flame {
  font-size: 2.5rem;
  animation: pulse 1.5s infinite alternate;
}

@keyframes pulse {
  0% { transform: scale(1); }
  100% { transform: scale(1.15); filter: drop-shadow(0 0 10px rgba(239, 68, 68, 0.4)); }
}

.streak-count {
  font-size: 2rem;
  font-weight: 800;
  color: var(--text-primary);
  line-height: 1.1;
  margin: 0.25rem 0;
  font-family: 'Outfit', sans-serif;
}

.streak-count .unit {
  font-size: 1rem;
  font-weight: 600;
  color: var(--text-secondary);
}

.streak-label {
  font-size: 0.8rem;
  color: var(--text-muted);
  font-weight: 700;
  text-transform: uppercase;
}

/* Dashboard list rankings */
.ranking-list {
  display: flex;
  flex-direction: column;
  gap: 1rem;
  margin-bottom: 1.5rem;
}

.ranking-item {
  display: flex;
  align-items: center;
  gap: 1rem;
  padding: 0.8rem 1rem;
  background-color: rgba(99, 102, 241, 0.03);
  border: 1px solid var(--border-card);
  border-radius: var(--radius-sm);
  transition: var(--transition-smooth);
}

.ranking-item:hover {
  background-color: rgba(99, 102, 241, 0.06);
  transform: translateX(3px);
}

.rank-number {
  width: 28px;
  height: 28px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 800;
  font-size: 0.9rem;
  color: #ffffff;
  background: var(--text-muted);
}

.rank-number.rank-1 { background: linear-gradient(135deg, #f59e0b 0%, #d97706 100%); }
.rank-number.rank-2 { background: linear-gradient(135deg, #94a3b8 0%, #64748b 100%); }
.rank-number.rank-3 { background: linear-gradient(135deg, #b45309 0%, #78350f 100%); }

.rank-details {
  flex: 1;
}

.rank-name {
  font-weight: 700;
  font-size: 0.95rem;
}

.rank-value {
  font-weight: 800;
  color: var(--primary-color);
  font-size: 1.1rem;
  font-family: 'Outfit', sans-serif;
}

/* Form Styling */
.form-group {
  margin-bottom: 1.25rem;
}

.form-group label {
  display: block;
  font-size: 0.88rem;
  font-weight: 700;
  margin-bottom: 0.5rem;
  color: var(--text-secondary);
}

.form-control {
  width: 100%;
  padding: 0.75rem 1rem;
  border-radius: var(--radius-sm);
  border: 1px solid var(--border-card);
  background-color: var(--bg-input);
  color: var(--text-primary);
  font-size: 0.95rem;
  outline: none;
  transition: var(--transition-smooth);
}

.form-control:focus {
  border-color: var(--primary-color);
  box-shadow: 0 0 0 3px rgba(99, 102, 241, 0.15);
}

/* Buttons */
.primary-btn {
  background: var(--primary-gradient);
  color: #ffffff;
  border: none;
  padding: 0.75rem 1.5rem;
  font-size: 0.95rem;
  font-weight: 700;
  border-radius: var(--radius-sm);
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  box-shadow: 0 4px 12px rgba(79, 70, 229, 0.2);
  transition: var(--transition-smooth);
}

.primary-btn:hover {
  background: var(--primary-hover);
  transform: translateY(-1px);
  box-shadow: 0 6px 16px rgba(79, 70, 229, 0.3);
}

.secondary-btn {
  background: var(--bg-input);
  color: var(--text-primary);
  border: 1px solid var(--border-card);
  padding: 0.75rem 1.5rem;
  font-size: 0.95rem;
  font-weight: 700;
  border-radius: var(--radius-sm);
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  box-shadow: var(--shadow-card);
  transition: var(--transition-smooth);
}

.secondary-btn:hover {
  background-color: rgba(99, 102, 241, 0.04);
  border-color: var(--primary-color);
  transform: translateY(-1px);
}

.danger-btn {
  background: var(--danger-gradient);
  color: #ffffff;
  border: none;
  padding: 0.75rem 1.5rem;
  font-size: 0.95rem;
  font-weight: 700;
  border-radius: var(--radius-sm);
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  box-shadow: 0 4px 12px rgba(239, 68, 68, 0.2);
  transition: var(--transition-smooth);
}

.danger-btn:hover {
  transform: translateY(-1px);
  box-shadow: 0 6px 16px rgba(239, 68, 68, 0.3);
}

.circle-btn {
  width: 36px;
  height: 36px;
  border-radius: 50%;
  border: 1px solid var(--border-card);
  background-color: var(--bg-input);
  color: var(--text-primary);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: var(--transition-smooth);
}

.circle-btn:hover {
  border-color: var(--primary-color);
  background-color: rgba(99, 102, 241, 0.05);
}

.text-link-btn {
  background: transparent;
  border: none;
  color: var(--primary-color);
  font-weight: 700;
  font-size: 0.9rem;
  cursor: pointer;
  transition: var(--transition-smooth);
}

.text-link-btn:hover {
  text-decoration: underline;
  opacity: 0.8;
}

.btn-group {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
}

.preset-btn {
  background-color: rgba(99, 102, 241, 0.03);
  border: 1px solid var(--border-card);
  padding: 0.4rem 0.8rem;
  border-radius: var(--radius-sm);
  color: var(--text-secondary);
  font-size: 0.85rem;
  font-weight: 600;
  cursor: pointer;
  transition: var(--transition-smooth);
}

.preset-btn:hover {
  border-color: var(--primary-color);
  color: var(--primary-color);
  background-color: rgba(99, 102, 241, 0.05);
}

.preset-btn.active {
  background-color: var(--primary-color);
  border-color: var(--primary-color);
  color: #ffffff;
}

/* Bible Reader Layout */
.reader-layout {
  display: grid;
  grid-template-columns: 280px 1fr;
  gap: 1.5rem;
  align-items: start;
}

.reader-sidebar {
  position: sticky;
  top: 90px;
}

.reader-nav-buttons {
  display: flex;
  gap: 0.5rem;
  margin-top: 1rem;
}

.flex-btn {
  flex: 1;
}

.reader-nav-buttons .flex-btn {
  padding: 0.6rem 0.5rem;
  font-size: 0.85rem;
  white-space: nowrap;
}

.card-divider {
  border: 0;
  height: 1px;
  background-color: var(--border-card);
  margin: 1.5rem 0;
}

.settings-subtitle {
  font-size: 0.85rem;
  font-weight: 700;
  text-transform: uppercase;
  color: var(--text-muted);
  margin-bottom: 0.75rem;
  letter-spacing: 0.05em;
}

.typography-settings {
  display: flex;
  align-items: center;
  gap: 1rem;
}

.font-size-indicator {
  font-weight: 600;
  font-size: 0.95rem;
}

/* Reader Card */
.reader-card {
  padding: 3rem;
  min-height: 500px;
}

.reader-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  border-bottom: 2px solid var(--border-card);
  padding-bottom: 1.5rem;
  margin-bottom: 2rem;
}

.bible-heading {
  font-size: 1.8rem;
  font-weight: 800;
  font-family: 'Outfit', sans-serif;
  color: var(--text-primary);
}

.checkbox-btn {
  background: transparent;
  border: 1px solid var(--border-card);
  padding: 0.5rem 1rem;
  border-radius: 50px;
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  cursor: pointer;
  color: var(--text-secondary);
  font-weight: 600;
  font-size: 0.9rem;
  transition: var(--transition-smooth);
}

.checkbox-btn:hover {
  border-color: var(--accent-color);
  color: var(--accent-color);
  background-color: rgba(16, 185, 129, 0.05);
}

.checkbox-box {
  width: 18px;
  height: 18px;
  border-radius: 4px;
  border: 2px solid var(--text-muted);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  transition: var(--transition-smooth);
}

.checkbox-btn.checked {
  color: var(--accent-color);
  border-color: var(--accent-color);
  background-color: rgba(16, 185, 129, 0.05);
}

.checkbox-btn.checked .checkbox-box {
  border-color: var(--accent-color);
  background-color: var(--accent-color);
}

.checkbox-btn.checked .checkbox-box::after {
  content: "✓";
  color: white;
  font-size: 0.75rem;
  font-weight: bold;
}

/* Bible text formatting */
.bible-text-container {
  line-height: 1.8;
  color: var(--text-primary);
  font-weight: 400;
}

.bible-verse {
  margin-bottom: 0.8rem;
  cursor: pointer;
  transition: var(--transition-smooth);
  padding: 0.2rem 0.4rem;
  border-radius: var(--radius-sm);
  display: inline-block;
  width: 100%;
}

.bible-verse:hover {
  background-color: rgba(99, 102, 241, 0.05);
}

.verse-num {
  font-weight: 700;
  color: var(--primary-color);
  margin-right: 0.5rem;
  font-family: 'Outfit', sans-serif;
}

.bible-verse.selected {
  background-color: rgba(255, 235, 59, 0.35); /* Yellow marker highlight */
}

/* Contextual Toolbar */
.context-toolbar {
  position: fixed;
  background-color: var(--bg-card);
  border: 1px solid var(--border-card);
  border-radius: 50px;
  padding: 0.5rem;
  display: flex;
  gap: 0.5rem;
  box-shadow: 0 10px 25px rgba(0, 0, 0, 0.15);
  backdrop-filter: var(--glass-blur);
  z-index: 500;
  transform: translate(-50%, -100%) scale(0.9);
  opacity: 0;
  pointer-events: none;
  transition: transform 0.2s ease, opacity 0.2s ease;
}

.context-toolbar.active {
  transform: translate(-50%, -120%) scale(1);
  opacity: 1;
  pointer-events: auto;
}

.toolbar-action {
  width: 32px;
  height: 32px;
  border-radius: 50%;
  border: 1px solid var(--border-card);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.85rem;
  transition: var(--transition-smooth);
}

.toolbar-action:hover {
  transform: scale(1.1);
}

/* Plan setup layout */
.book-selection-box {
  border: 1px solid var(--border-card);
  border-radius: var(--radius-sm);
  background-color: var(--bg-input);
  max-height: 180px;
  overflow-y: auto;
  padding: 0.75rem;
}

.checkbox-label-block {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.4rem 0.2rem;
  font-size: 0.9rem;
  cursor: pointer;
  font-weight: 500;
}

.checkbox-label-block input {
  width: 16px;
  height: 16px;
  accent-color: var(--primary-color);
}

.plan-summary-badge {
  background-color: rgba(99, 102, 241, 0.05);
  border-left: 4px solid var(--primary-color);
  padding: 1rem;
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
  margin-bottom: 1.25rem;
  font-size: 0.9rem;
  color: var(--text-secondary);
}

/* Plan Progress Tracker */
.plan-progress-header {
  margin-bottom: 1.5rem;
}

.plan-progress-wrapper {
  height: 10px;
  background-color: var(--border-card);
  border-radius: 10px;
  overflow: hidden;
  margin-top: 0.5rem;
}

.plan-progress-bar {
  height: 100%;
  background: var(--accent-gradient);
  width: 0%;
  transition: width 0.4s ease;
}

.day-section {
  border-bottom: 1px solid var(--border-card);
  padding: 1rem 0;
}

.day-title-flex {
  display: flex;
  justify-content: space-between;
  align-items: center;
  cursor: pointer;
}

.day-title {
  font-weight: 700;
  font-size: 1.05rem;
}

.day-badge {
  font-size: 0.75rem;
  padding: 0.25rem 0.6rem;
  background-color: var(--border-card);
  border-radius: 50px;
  font-weight: 600;
  color: var(--text-secondary);
}

.day-badge.complete {
  background-color: rgba(16, 185, 129, 0.1);
  color: var(--accent-color);
}

.day-chapters-list {
  display: flex;
  flex-direction: column;
  gap: 0.6rem;
  padding: 0.8rem 0.5rem 0.2rem 0.5rem;
}

.chapter-checkbox-item {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  font-size: 0.95rem;
  font-weight: 500;
  cursor: pointer;
}

.chapter-checkbox-item input {
  width: 18px;
  height: 18px;
  accent-color: var(--accent-color);
}

.chapter-checkbox-item.checked {
  color: var(--text-muted);
  text-decoration: line-through;
}

/* Statistics Overview */
.stats-overview-row {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.5rem;
  margin-bottom: 2rem;
}

.stats-mini-card {
  background-color: var(--bg-card);
  border: 1px solid var(--border-card);
  border-radius: var(--radius-md);
  padding: 1.5rem;
  text-align: center;
  box-shadow: var(--shadow-card);
}

.stats-mini-card .label {
  font-size: 0.85rem;
  font-weight: 700;
  color: var(--text-muted);
  text-transform: uppercase;
  margin-bottom: 0.4rem;
}

.stats-mini-card .value {
  font-size: 1.8rem;
  font-weight: 800;
  color: var(--text-primary);
  font-family: 'Outfit', sans-serif;
}

.chart-container {
  position: relative;
  height: 250px;
  width: 100%;
}

.card-header-flex {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 1.5rem;
}

.inline-select {
  max-width: 180px;
}

/* Tables */
.table-container {
  overflow-x: auto;
  max-height: 300px;
  overflow-y: auto;
}

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

.data-table th {
  padding: 0.75rem 1rem;
  font-size: 0.85rem;
  font-weight: 700;
  color: var(--text-muted);
  border-bottom: 2px solid var(--border-card);
  text-transform: uppercase;
}

.data-table td {
  padding: 0.85rem 1rem;
  font-size: 0.9rem;
  border-bottom: 1px solid var(--border-card);
  color: var(--text-secondary);
}

.data-table tbody tr:hover {
  background-color: rgba(99, 102, 241, 0.02);
}

/* Cloud sync screen details */
.auth-section {
  margin-top: 1.5rem;
}

.btn-group-auth {
  display: flex;
  gap: 0.5rem;
}

.btn-group-auth button {
  flex: 1;
}

.auth-user-info {
  background-color: rgba(16, 185, 129, 0.05);
  border: 1px solid rgba(16, 185, 129, 0.2);
  border-radius: var(--radius-sm);
  padding: 1rem;
  margin-bottom: 1.25rem;
  font-size: 0.9rem;
}

.badge {
  display: inline-block;
  padding: 0.25rem 0.5rem;
  border-radius: 4px;
  font-size: 0.75rem;
  font-weight: bold;
}

.badge.success {
  background-color: var(--accent-color);
  color: white;
}

/* Loader Overlay */
.loader-overlay {
  position: fixed;
  inset: 0;
  background-color: rgba(9, 13, 22, 0.6);
  backdrop-filter: blur(5px);
  z-index: 9999;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 1.5rem;
  color: white;
  transition: opacity 0.3s ease;
}

.spinner {
  width: 50px;
  height: 50px;
  border: 5px solid rgba(255, 255, 255, 0.15);
  border-top-color: var(--primary-color);
  border-radius: 50%;
  animation: spin 1s linear infinite;
}

@keyframes spin {
  to { transform: rotate(360deg); }
}

.loader-text {
  font-size: 1.1rem;
  font-weight: 600;
  letter-spacing: 0.05em;
}

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

/* Footer Styling */
.main-footer {
  text-align: center;
  padding: 2.5rem;
  color: var(--text-muted);
  font-size: 0.85rem;
  border-top: 1px solid var(--border-card);
  margin-top: auto;
}

/* Mobile Nav Bar - Hidden by default on Desktop */
.mobile-nav-bar {
  display: none;
}

/* Responsive adjustments */
@media (max-width: 992px) {
  .reader-layout {
    grid-template-columns: 1fr;
  }
  
  .reader-sidebar {
    position: static;
  }
  
  .grid-layout {
    display: flex;
    flex-direction: column;
  }
  
  .stats-overview-row {
    grid-template-columns: 1fr;
    gap: 1rem;
  }
}

@media (max-width: 768px) {
  .header-container {
    padding: 0 1rem;
  }
  
  .nav-tabs {
    display: none; /* Hide header tabs on mobile */
  }
  
  .main-content {
    padding: 1.5rem 1rem 5rem 1rem; /* Pad bottom for mobile navbar */
  }
  
  /* Mobile Tab Navigation */
  .mobile-nav-bar {
    display: flex;
    position: fixed;
    bottom: 0;
    left: 0;
    right: 0;
    height: 60px;
    background-color: var(--bg-header);
    border-top: 1px solid var(--border-card);
    backdrop-filter: var(--glass-blur);
    z-index: 100;
    justify-content: space-around;
    align-items: center;
  }
  
  .mobile-nav-btn {
    background: transparent;
    border: none;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.2rem;
    color: var(--text-muted);
    font-size: 0.75rem;
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition-smooth);
    width: 20%;
  }
  
  .mobile-nav-btn .icon {
    width: 20px;
    height: 20px;
  }
  
  .mobile-nav-btn:hover {
    color: var(--text-secondary);
  }
  
  .mobile-nav-btn.active {
    color: var(--primary-color);
  }
  
  .main-footer {
    padding: 1.5rem 1rem;
    margin-bottom: 60px; /* Offset for mobile navbar */
  }
  
  .dashboard-hero {
    flex-direction: column;
    gap: 1.5rem;
    align-items: stretch;
    text-align: center;
    padding: 1.5rem;
  }
  
  .streak-card {
    flex-direction: row;
    justify-content: center;
    gap: 1.5rem;
    padding: 1rem;
  }
}

/* Custom Scrollbar */
::-webkit-scrollbar {
  width: 8px;
  height: 8px;
}

::-webkit-scrollbar-track {
  background: transparent;
}

::-webkit-scrollbar-thumb {
  background: var(--border-card);
  border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
  background: var(--text-muted);
}

/* Google Auth and Demo Switcher Styles */
#btn-google-login {
  transition: var(--transition-smooth);
}
#btn-google-login:hover {
  background-color: rgba(99, 102, 241, 0.05) !important;
  border-color: var(--primary-color) !important;
  transform: translateY(-1px);
}
.demo-role-card select {
  font-weight: 700;
}

/* PWA and Auth UI animations */
@keyframes pulse {
  0% { opacity: 0.4; }
  50% { opacity: 1; }
  100% { opacity: 0.4; }
}

.auth-card {
  transition: all 0.3s ease;
}

/* Login Gate Style */
.login-gate {
  position: fixed;
  top: 0;
  left: 0;
  width: 100vw;
  height: 100vh;
  background: radial-gradient(circle at 10% 20%, rgb(239, 246, 255) 0%, rgb(219, 234, 254) 100%);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 9999;
  padding: 1.5rem;
  box-sizing: border-box;
}

.login-card {
  width: 100%;
  max-width: 440px;
  background: rgba(255, 255, 255, 0.7);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border: 1px solid rgba(255, 255, 255, 0.5);
  border-radius: var(--radius-md);
  padding: 3rem 2.5rem;
  box-shadow: 0 20px 40px rgba(0, 0, 0, 0.05);
  text-align: center;
  display: flex;
  flex-direction: column;
  align-items: center;
}

.login-logo-wrapper {
  width: 72px;
  height: 72px;
  background: linear-gradient(135deg, var(--primary-color) 0%, var(--accent-color) 100%);
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 1.5rem;
  box-shadow: 0 8px 24px rgba(99, 102, 241, 0.35);
}

.login-title {
  font-family: 'Outfit', 'Noto Sans TC', sans-serif;
  font-size: 1.6rem;
  font-weight: 800;
  color: var(--text-primary);
  margin-bottom: 0.5rem;
}

.login-subtitle {
  font-size: 0.9rem;
  color: var(--text-secondary);
  margin-bottom: 2.5rem;
  line-height: 1.6;
}

/* Dark mode overrides for login gate */
.dark-theme .login-gate {
  background: radial-gradient(circle at 10% 20%, rgb(15, 23, 42) 0%, rgb(9, 15, 30) 100%);
}

.dark-theme .login-card {
  background: rgba(30, 41, 59, 0.7);
  border-color: rgba(255, 255, 255, 0.08);
  box-shadow: 0 20px 40px rgba(0, 0, 0, 0.3);
}

/* Devotional Notes Card styles */
.devotional-card textarea:focus {
  border-color: var(--primary-color) !important;
  box-shadow: 0 0 0 3px rgba(99, 102, 241, 0.15);
  background-color: var(--bg-card);
}

/* Today Progress Member list styles */
.member-progress-list::-webkit-scrollbar {
  width: 4px;
}
.member-progress-list::-webkit-scrollbar-track {
  background: transparent;
}
.member-progress-list::-webkit-scrollbar-thumb {
  background: var(--border-card);
  border-radius: 4px;
}
.member-progress-list::-webkit-scrollbar-thumb:hover {
  background: var(--text-muted);
}

.member-progress-item {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 0.6rem 0.8rem;
  background: var(--bg-input);
  border: 1px solid var(--border-card);
  border-radius: var(--radius-sm);
  transition: all 0.2s ease;
}
.member-progress-item:hover {
  border-color: var(--primary-color);
  background: var(--bg-card);
  transform: translateX(2px);
}

.member-progress-item .member-name-info {
  display: flex;
  flex-direction: column;
  gap: 0.15rem;
}

.member-progress-item .member-name {
  font-size: 0.88rem;
  font-weight: 600;
  color: var(--text-primary);
}

.member-progress-item .member-meta {
  font-size: 0.72rem;
  color: var(--text-muted);
}

.progress-badge {
  font-size: 0.72rem;
  font-weight: 700;
  padding: 0.25rem 0.6rem;
  border-radius: 20px;
  display: inline-flex;
  align-items: center;
  gap: 0.25rem;
}
.progress-badge.completed {
  background: rgba(16, 185, 129, 0.08);
  color: #10b981;
  border: 1px solid rgba(16, 185, 129, 0.15);
}
.progress-badge.pending {
  background: var(--border-card);
  color: var(--text-muted);
  border: 1px solid var(--border-card);
}

/* Monthly Hall of Fame card styles */
.monthly-fame-card {
  padding: 2rem;
}

.monthly-fame-item {
  background: var(--bg-input);
  border: 1px solid var(--border-card);
  border-radius: var(--radius-sm);
  padding: 1.5rem;
  display: flex;
  flex-direction: column;
  position: relative;
  overflow: hidden;
  transition: all 0.3s ease;
}
.monthly-fame-item:hover {
  transform: translateY(-3px);
  box-shadow: var(--shadow-card);
}

.monthly-fame-month {
  font-family: 'Outfit', sans-serif;
  font-size: 1.15rem;
  font-weight: 800;
  color: var(--primary-color);
  margin-bottom: 1rem;
  padding-bottom: 0.5rem;
  border-bottom: 1px solid var(--border-card);
}

.fame-row {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  padding: 0.5rem 0;
  font-size: 0.88rem;
}
.fame-row:not(:last-child) {
  border-bottom: 1px dashed var(--border-card);
}

.fame-rank {
  width: 24px;
  height: 24px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 800;
  font-size: 0.75rem;
}
.fame-rank.gold {
  background: linear-gradient(135deg, #fbbf24 0%, #f59e0b 100%);
  color: #ffffff;
  box-shadow: 0 2px 6px rgba(245, 158, 11, 0.3);
}
.fame-rank.silver {
  background: linear-gradient(135deg, #9ca3af 0%, #6b7280 100%);
  color: #ffffff;
  box-shadow: 0 2px 6px rgba(107, 114, 128, 0.3);
}
.fame-rank.bronze {
  background: linear-gradient(135deg, #d97706 0%, #b45309 100%);
  color: #ffffff;
  box-shadow: 0 2px 6px rgba(180, 83, 9, 0.3);
}

.fame-name {
  font-weight: 600;
  color: var(--text-primary);
  flex: 1;
}

.fame-value {
  font-weight: 700;
  color: var(--text-secondary);
  font-size: 0.82rem;
}

/* Winding Pilgrimage Trail Styling */
.pilgrimage-card {
  padding: 1.5rem;
}
.trail-scroll-wrapper {
  scrollbar-width: thin;
  scrollbar-color: var(--border-card) transparent;
}
.trail-scroll-wrapper::-webkit-scrollbar {
  width: 6px;
  height: 6px;
}
.trail-scroll-wrapper::-webkit-scrollbar-track {
  background: transparent;
}
.trail-scroll-wrapper::-webkit-scrollbar-thumb {
  background: var(--border-card);
  border-radius: 4px;
}
.trail-scroll-wrapper::-webkit-scrollbar-thumb:hover {
  background: var(--text-muted);
}

/* Bible Reading Heatmap Grid */
.heatmap-grid {
  display: grid;
  grid-template-rows: repeat(7, 10px);
  grid-auto-flow: column;
  grid-auto-columns: 10px;
  gap: 3px;
  overflow-x: auto;
  padding-bottom: 0.5rem;
  scrollbar-width: thin;
  width: 100%;
}
.heatmap-grid::-webkit-scrollbar {
  height: 4px;
}
.heatmap-grid::-webkit-scrollbar-track {
  background: transparent;
}
.heatmap-grid::-webkit-scrollbar-thumb {
  background: var(--border-card);
  border-radius: 2px;
}

.heatmap-cell {
  width: 10px;
  height: 10px;
  border-radius: 2px;
  cursor: pointer;
  position: relative;
  transition: transform 0.1s ease, filter 0.15s ease;
}
.heatmap-cell:hover {
  transform: scale(1.3);
  filter: brightness(1.15);
  z-index: 10;
}

/* Achievements Badges Wall */
.honor-badge-item {
  box-shadow: 0 2px 4px rgba(0,0,0,0.02);
}
.honor-badge-item.unlocked:hover {
  box-shadow: var(--shadow-card);
}

@keyframes pulse {
  0% { transform: scale(1); }
  50% { transform: scale(1.03); }
  100% { transform: scale(1); }
}

.achievement-unlock-overlay div {
  animation: popIn 0.4s cubic-bezier(0.175, 0.885, 0.32, 1.275) forwards;
}

@keyframes popIn {
  0% { transform: scale(0.75); opacity: 0; }
  100% { transform: scale(1); opacity: 1; }
}

/* responsive zoom and scrolling fixes */
@media (max-width: 768px) {
  .heatmap-grid {
    padding-bottom: 0.8rem;
  }
}



/* ¢w¢w¢w¢w¢w¢w¢w¢w¢w¢w¢w¢w¢w¢w¢w¢w¢w¢w¢w¢w¢w¢w¢w¢w¢w¢w¢w¢w¢w¢w¢w¢w¢w¢w¢w¢w¢w¢w¢w¢w¢w¢w¢w¢w¢w¢w¢w¢w¢w
   Header Avatar Dropdown
¢w¢w¢w¢w¢w¢w¢w¢w¢w¢w¢w¢w¢w¢w¢w¢w¢w¢w¢w¢w¢w¢w¢w¢w¢w¢w¢w¢w¢w¢w¢w¢w¢w¢w¢w¢w¢w¢w¢w¢w¢w¢w¢w¢w¢w¢w¢w¢w¢w */
.user-avatar-container {
  position: relative;
  display: flex;
  align-items: center;
}

.avatar-btn {
  width: 36px;
  height: 36px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--primary-color), #4338ca);
  border: 2px solid rgba(255, 255, 255, 0.25);
  color: #fff;
  font-size: 0.95rem;
  font-weight: 700;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: transform 0.18s ease, box-shadow 0.18s ease, border-color 0.18s ease;
  box-shadow: 0 2px 8px rgba(99, 102, 241, 0.35);
  user-select: none;
}

.avatar-btn:hover {
  transform: scale(1.08);
  box-shadow: 0 4px 16px rgba(99, 102, 241, 0.5);
  border-color: rgba(255, 255, 255, 0.55);
}

.avatar-btn:active {
  transform: scale(0.97);
}

.avatar-dropdown {
  position: absolute;
  top: calc(100% + 10px);
  right: 0;
  min-width: 220px;
  background: rgba(30, 32, 60, 0.92);
  backdrop-filter: blur(18px) saturate(180%);
  -webkit-backdrop-filter: blur(18px) saturate(180%);
  border: 1px solid var(--border-card, rgba(255,255,255,0.12));
  border-radius: 14px;
  box-shadow: 0 12px 40px rgba(0,0,0,0.28), 0 2px 8px rgba(0,0,0,0.15);
  z-index: 2000;
  overflow: hidden;
  animation: avatarDropIn 0.2s cubic-bezier(0.22,1,0.36,1) forwards;
  transform-origin: top right;
}

@keyframes avatarDropIn {
  from { opacity: 0; transform: scale(0.9) translateY(-6px); }
  to   { opacity: 1; transform: scale(1)   translateY(0); }
}

.avatar-dropdown.hidden {
  display: none;
}

.dropdown-header {
  padding: 1rem 1.1rem 0.8rem;
  border-bottom: 1px solid var(--border-card, rgba(255,255,255,0.1));
}

.dropdown-user-name {
  font-size: 0.95rem;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 0.2rem;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.dropdown-user-email {
  font-size: 0.75rem;
  color: var(--text-muted);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.dropdown-divider {
  height: 1px;
  background: var(--border-card, rgba(255,255,255,0.08));
  margin: 0;
}

.dropdown-item {
  display: flex;
  align-items: center;
  padding: 0.7rem 1.1rem;
  font-size: 0.85rem;
  color: var(--text-secondary);
  width: 100%;
  text-align: left;
  border: none;
  background: none;
  cursor: default;
}

.dropdown-item.role-item {
  color: var(--text-muted);
  font-size: 0.8rem;
  gap: 0.4rem;
}

.role-badge {
  display: inline-block;
  padding: 0.15rem 0.55rem;
  border-radius: 99px;
  font-size: 0.72rem;
  font-weight: 700;
  background: rgba(99,102,241,0.18);
  color: var(--primary-color);
  border: 1px solid rgba(99,102,241,0.35);
  letter-spacing: 0.02em;
}

button.logout-btn {
  cursor: pointer;
  color: #f87171;
  font-weight: 600;
  transition: background 0.15s ease, color 0.15s ease;
  border-top: 1px solid var(--border-card, rgba(255,255,255,0.08));
}

button.logout-btn:hover {
  background: rgba(239,68,68,0.12);
  color: #ef4444;
}

.light-theme .avatar-dropdown {
  background: rgba(255,255,255,0.92);
  border-color: rgba(0,0,0,0.1);
  box-shadow: 0 12px 40px rgba(0,0,0,0.14), 0 2px 8px rgba(0,0,0,0.08);
}

.light-theme .dropdown-header {
  border-bottom-color: rgba(0,0,0,0.08);
}

.light-theme .dropdown-divider {
  background: rgba(0,0,0,0.07);
}

.light-theme button.logout-btn {
  border-top-color: rgba(0,0,0,0.07);
}

@media (max-width: 480px) {
  .avatar-dropdown {
    right: -8px;
    min-width: 200px;
  }
}

/* Progress Bar Animations for different rounds */
.plan-progress-bar.round-1 {
  background: linear-gradient(90deg, #6366f1, #a855f7);
}

.plan-progress-bar.round-2 {
  background: linear-gradient(90deg, #f97316, #ef4444);
  position: relative;
  overflow: hidden;
}
.plan-progress-bar.round-2::after {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0; bottom: 0;
  background: linear-gradient(90deg, rgba(255,255,255,0) 0%, rgba(255,255,255,0.4) 50%, rgba(255,255,255,0) 100%);
  animation: pulse-glow 2s infinite;
}

.plan-progress-bar.round-3 {
  background: linear-gradient(90deg, #eab308, #f59e0b);
  position: relative;
  overflow: hidden;
  box-shadow: 0 0 8px rgba(234, 179, 8, 0.5);
}
.plan-progress-bar.round-3::after {
  content: '';
  position: absolute;
  top: 0; left: -100%; width: 100%; height: 100%;
  background: linear-gradient(90deg, rgba(255,255,255,0) 0%, rgba(255,255,255,0.6) 50%, rgba(255,255,255,0) 100%);
  animation: gold-shimmer 2.5s infinite linear;
}

.plan-progress-bar.round-4 {
  background: linear-gradient(90deg, #3b82f6, #10b981, #6366f1);
  background-size: 200% 200%;
  animation: rainbow-flow 4s infinite linear;
}

@keyframes pulse-glow {
  0% { transform: translateX(-100%); }
  100% { transform: translateX(100%); }
}

@keyframes gold-shimmer {
  0% { left: -100%; }
  100% { left: 100%; }
}

@keyframes rainbow-flow {
  0% { background-position: 0% 50%; }
  50% { background-position: 100% 50%; }
  100% { background-position: 0% 50%; }
}