/* ========================================
   CIHRPT Dark Theme - Comprehensive Styling
   ======================================== */

/* CSS Variables for Theme Management */
:root {
  /* Light Theme (Default) */
  --bg-primary: #ffffff;
  --bg-secondary: #f8fafc;
  --bg-tertiary: #f1f5f9;
  --bg-accent: #e2e8f0;
  
  --text-primary: #1f2937;
  --text-secondary: #4b5563;
  --text-muted: #6b7280;
  --text-light: #9ca3af;
  
  --border-primary: #e5e7eb;
  --border-secondary: #d1d5db;
  --border-accent: #f3f4f6;
  
  --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
  --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
  --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
  
  /* CIHR Brand Colors - Same in both themes */
  --cihr-primary: #dc2626;
  --cihr-secondary: #991b1b;
  --cihr-light: #ef4444;
  --cihr-dark: #7f1d1d;
  
  /* Status Colors - Adapted for themes */
  --success: #10b981;
  --success-light: #d1fae5;
  --warning: #f59e0b;
  --warning-light: #fef3c7;
  --info: #3b82f6;
  --info-light: #dbeafe;
  --danger: #ef4444;
  --danger-light: #fee2e2;
}

/* Dark Theme Variables */
[data-theme="dark"] {
  --bg-primary: #0f172a;
  --bg-secondary: #1e293b;
  --bg-tertiary: #334155;
  --bg-accent: #475569;
  
  --text-primary: #f8fafc;
  --text-secondary: #e2e8f0;
  --text-muted: #cbd5e1;
  --text-light: #94a3b8;
  
  --border-primary: #334155;
  --border-secondary: #475569;
  --border-accent: #1e293b;
  
  --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.3);
  --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.4), 0 2px 4px -1px rgba(0, 0, 0, 0.3);
  --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.5), 0 4px 6px -2px rgba(0, 0, 0, 0.4);
  
  /* Status Colors - Dark theme variants */
  --success-light: #064e3b;
  --warning-light: #78350f;
  --info-light: #1e3a8a;
  --danger-light: #7f1d1d;
}

/* ========================================
   BASE ELEMENTS
   ======================================== */

body {
  background-color: var(--bg-primary);
  color: var(--text-primary);
  transition: background-color 0.3s ease, color 0.3s ease;
}

/* ========================================
   XERA COMPONENTS
   ======================================== */

/* Xera Header */
.xera-header {
  background-color: var(--bg-primary);
  border-bottom: 1px solid var(--border-primary);
  box-shadow: var(--shadow-sm);
}

.xera-brand {
  color: var(--text-primary);
}

.xera-brand:hover {
  color: var(--cihr-primary);
}

/* Xera Navigation */
.xera-nav-link {
  color: var(--text-secondary);
  transition: color 0.2s ease;
}

.xera-nav-link:hover {
  color: var(--cihr-primary);
}

.xera-nav-link.active {
  color: var(--cihr-primary);
  background-color: var(--bg-tertiary);
}

/* Xera Cards */
.xera-card {
  background-color: var(--bg-secondary);
  border: 1px solid var(--border-primary);
  box-shadow: var(--shadow-md);
  color: var(--text-primary);
}

.xera-card-header {
  background-color: var(--bg-tertiary);
  border-bottom: 1px solid var(--border-primary);
  color: var(--text-primary);
}

.xera-card-title {
  color: var(--text-primary);
}

.xera-card-body {
  background-color: var(--bg-secondary);
  color: var(--text-primary);
}

/* ========================================
   BOOTSTRAP OVERRIDES
   ======================================== */

/* Tables */
.table {
  color: var(--text-primary);
  background-color: var(--bg-secondary);
}

.table th {
  background-color: var(--bg-tertiary) !important;
  color: var(--text-primary);
  border-color: var(--border-primary);
}

.table td {
  color: var(--text-primary);
  border-color: var(--border-primary);
}

.table-hover tbody tr:hover {
  background-color: var(--bg-tertiary);
  color: var(--text-primary);
}

.table-light {
  background-color: var(--bg-tertiary);
  color: var(--text-primary);
}

/* Forms */
.form-control {
  background-color: var(--bg-secondary);
  border-color: var(--border-primary);
  color: var(--text-primary);
}

.form-control:focus {
  background-color: var(--bg-secondary);
  border-color: var(--cihr-primary);
  color: var(--text-primary);
  box-shadow: 0 0 0 0.2rem rgba(220, 38, 38, 0.25);
}

.form-control::placeholder {
  color: var(--text-muted);
}

.input-group-text {
  background-color: var(--bg-tertiary);
  border-color: var(--border-primary);
  color: var(--text-secondary);
}

/* Buttons */
.btn-primary {
  background-color: var(--cihr-primary);
  border-color: var(--cihr-primary);
  color: #ffffff;
}

.btn-primary:hover {
  background-color: var(--cihr-secondary);
  border-color: var(--cihr-secondary);
}

.btn-outline-primary {
  color: var(--cihr-primary);
  border-color: var(--cihr-primary);
}

.btn-outline-primary:hover {
  background-color: var(--cihr-primary);
  border-color: var(--cihr-primary);
  color: #ffffff;
}

.btn-secondary {
  background-color: var(--bg-accent);
  border-color: var(--border-primary);
  color: var(--text-primary);
}

.btn-outline-secondary {
  color: var(--text-secondary);
  border-color: var(--border-primary);
}

.btn-outline-secondary:hover {
  background-color: var(--bg-accent);
  border-color: var(--border-primary);
  color: var(--text-primary);
}

/* Badges */
.badge {
  color: #ffffff;
}

.bg-outline-primary {
  background-color: transparent !important;
  border: 1px solid var(--cihr-primary);
  color: var(--cihr-primary) !important;
}

.bg-primary {
  background-color: var(--cihr-primary) !important;
}

.bg-secondary {
  background-color: var(--bg-accent) !important;
  color: var(--text-primary) !important;
}

.bg-success {
  background-color: var(--success) !important;
}

.bg-info {
  background-color: var(--info) !important;
}

.bg-warning {
  background-color: var(--warning) !important;
}

.bg-danger {
  background-color: var(--danger) !important;
}

.bg-light {
  background-color: var(--bg-tertiary) !important;
  color: var(--text-primary) !important;
}

.bg-dark {
  background-color: var(--bg-accent) !important;
  color: var(--text-primary) !important;
}

/* Text Colors */
.text-primary {
  color: var(--cihr-primary) !important;
}

.text-secondary {
  color: var(--text-secondary) !important;
}

.text-muted {
  color: var(--text-muted) !important;
}

.text-light {
  color: var(--text-light) !important;
}

.text-success {
  color: var(--success) !important;
}

.text-info {
  color: var(--info) !important;
}

.text-warning {
  color: var(--warning) !important;
}

.text-danger {
  color: var(--danger) !important;
}

/* Borders */
.border {
  border-color: var(--border-primary) !important;
}

.border-primary {
  border-color: var(--border-primary) !important;
}

/* ========================================
   NAVIGATION & BREADCRUMBS
   ======================================== */

.breadcrumb {
  background-color: var(--bg-tertiary);
}

.breadcrumb-item {
  color: var(--text-secondary);
}

.breadcrumb-item.active {
  color: var(--text-primary);
}

.breadcrumb-item + .breadcrumb-item::before {
  color: var(--text-muted);
}

/* Pagination */
.pagination .page-link {
  background-color: var(--bg-secondary);
  border-color: var(--border-primary);
  color: var(--text-primary);
}

.pagination .page-link:hover {
  background-color: var(--bg-tertiary);
  border-color: var(--border-primary);
  color: var(--cihr-primary);
}

.pagination .page-item.active .page-link {
  background-color: var(--cihr-primary);
  border-color: var(--cihr-primary);
  color: #ffffff;
}

/* ========================================
   SPECIAL ELEMENTS
   ======================================== */

/* Dropdown */
.dropdown-menu {
  background-color: var(--bg-secondary);
  border-color: var(--border-primary);
  box-shadow: var(--shadow-lg);
}

.dropdown-item {
  color: var(--text-primary);
}

.dropdown-item:hover {
  background-color: var(--bg-tertiary);
  color: var(--text-primary);
}

.dropdown-divider {
  border-color: var(--border-primary);
}

/* Modal */
.modal-content {
  background-color: var(--bg-secondary);
  border-color: var(--border-primary);
  color: var(--text-primary);
}

.modal-header {
  border-bottom-color: var(--border-primary);
}

.modal-footer {
  border-top-color: var(--border-primary);
}

/* Charts - Chart.js Dark Theme */
[data-theme="dark"] canvas {
  filter: brightness(0.9);
}

/* ========================================
   HOVER EFFECTS
   ======================================== */

.hover-bg-light:hover {
  background-color: var(--bg-tertiary) !important;
}

/* Institution/Project Row Hovers */
.institution-row:hover {
  background-color: var(--bg-tertiary) !important;
  color: var(--text-primary);
}

.institute-row:hover {
  background-color: var(--bg-tertiary) !important;
  color: var(--text-primary);
}

/* PubMed Links */
.pubmed-link {
  color: var(--info) !important;
  border-bottom-color: var(--info);
}

.pubmed-link:hover {
  color: var(--cihr-primary) !important;
  border-bottom-color: var(--cihr-primary);
  background-color: var(--bg-tertiary);
}

/* Institution Links */
.institution-link,
.cihr-institute-link,
.program-link {
  color: var(--cihr-primary) !important;
  border-bottom-color: var(--cihr-primary);
}

.institution-link:hover,
.cihr-institute-link:hover,
.program-link:hover {
  color: var(--cihr-secondary) !important;
  border-bottom-color: var(--cihr-secondary);
  background-color: var(--bg-tertiary);
}

/* ========================================
   FLOATING THEME TOGGLE BUTTON
   ======================================== */

.theme-toggle-floating {
  position: fixed;
  bottom: 24px;
  right: 24px;
  z-index: 1050;
  width: 56px;
  height: 56px;
  border-radius: 50%;
  background: var(--cihr-primary);
  border: none;
  color: white;
  font-size: 1.25rem;
  cursor: pointer;
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.15);
  transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  display: flex;
  align-items: center;
  justify-content: center;
}

[data-theme="dark"] .theme-toggle-floating {
  background: var(--cihr-primary);
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.3);
}

.theme-toggle-floating:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 25px rgba(0, 0, 0, 0.2);
  background: var(--cihr-secondary);
}

[data-theme="dark"] .theme-toggle-floating:hover {
  box-shadow: 0 8px 25px rgba(0, 0, 0, 0.4);
  background: var(--cihr-secondary);
}

.theme-toggle-floating:active {
  transform: translateY(0);
}

.theme-toggle-floating:focus {
  outline: none;
  box-shadow: 0 0 0 3px rgba(0, 123, 255, 0.25);
}

.theme-toggle-floating i {
  transition: transform 0.3s ease;
}

.theme-toggle-floating:hover i {
  transform: rotate(180deg);
}

/* ========================================
   RESPONSIVE ADJUSTMENTS
   ======================================== */

@media (max-width: 768px) {
  .xera-card {
    margin-bottom: 1rem;
  }
  
  .theme-toggle-floating {
    bottom: 20px;
    right: 20px;
    width: 48px;
    height: 48px;
    font-size: 1.1rem;
  }
}

/* ========================================
   SCROLLBAR STYLING
   ======================================== */

/* Webkit browsers */
::-webkit-scrollbar {
  width: 8px;
  height: 8px;
}

::-webkit-scrollbar-track {
  background: var(--bg-secondary);
}

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

::-webkit-scrollbar-thumb:hover {
  background: var(--cihr-primary);
}

/* Firefox */
html {
  scrollbar-width: thin;
  scrollbar-color: var(--bg-accent) var(--bg-secondary);
}

/* ========================================
   PRINT STYLES
   ======================================== */

@media print {
  [data-theme="dark"] {
    background-color: white !important;
    color: black !important;
  }
  
  [data-theme="dark"] * {
    background-color: white !important;
    color: black !important;
    border-color: #000 !important;
  }
}

/* ========================================
   SMOOTH TRANSITIONS
   ======================================== */

* {
  transition: background-color 0.3s ease, color 0.3s ease, border-color 0.3s ease;
}

/* Disable transitions during theme change to prevent flash */
.theme-transitioning * {
  transition: none !important;
}