/**
 * Theme System - Unified theme management
 * This file provides the theme switching mechanism and component-agnostic styles
 */

/* Import theme variables */
@import url('./theme-variables.css');

/* Light theme (default and explicit) */
:root,
html.theme-light,
body.theme-light {
  /* Backgrounds */
  --bg-surface: #FFFFFF;
  --bg-card: #F5F5F5;
  --bg-input: #FFFFFF;
  --bg-hover: #F0F0F0;
  
  /* Text Colors */
  --text-primary: #1A1A1A;
  --text-secondary: #666666;
  --text-muted: #888888;
  --text-on-accent: #FFFFFF;
  
  /* Borders */
  --border-default: #949494;
  --border-subtle: #F0F0F0;
  --border-focus: #667eea;
  
  /* Interactive Colors */
  --link: #2563EB;
  --link-hover: #1D4ED8;
  --error: #DC2626;
  --success: #047857;
  --warning: #D97706;
  
  /* Shadows */
  --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
  --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
  --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1);
  --shadow: 0 2px 4px rgba(0, 0, 0, 0.05);
  
  /* Additional light theme colors */
  --hover-overlay: rgba(0, 0, 0, 0.05);
  --border-light: rgba(255, 255, 255, 0.2);
  --hover-color: #f3f4f6;
  --focus-color: #e5e7eb;
  --danger-bg-light: #fee2e2;
  --overlay-dark: rgba(0, 0, 0, 0.5);
  --skeleton-base: linear-gradient(90deg, #e5e7eb 25%, #f3f4f6 50%, #e5e7eb 75%);
  --white: #FFFFFF;
  --background-color: #FFFFFF;
  --text-color: #1A1A1A;
  --border-color: #949494;
  
  /* Legacy support */
  --primary-color: #667eea;
  --success-color: #22c55e;
  --danger-color: #ef4444;
  --warning-color: #f59e0b;
  --info-color: #3b82f6;
}

/* Base styles */
html,
body {
  background-color: var(--bg-surface);
  color: var(--text-primary);
  transition: background-color 0.3s ease, color 0.3s ease;
}

/* Dark theme class override */
:root.theme-dark,
html.theme-dark,
body.theme-dark {
  /* Backgrounds */
  --bg-surface: #181A1B;
  --bg-card: #232526;
  --bg-input: #2D2F30;
  --bg-hover: #2F3133;
  
  /* Text Colors */
  --text-primary: #F3F3F3;
  --text-secondary: #B0B0B0;
  --text-muted: #888888;
  --text-on-accent: #FFFFFF;
  
  /* Borders */
  --border-default: #575A5E;
  --border-subtle: #353738;
  --border-focus: #6DB3F2;
  
  /* Interactive Colors */
  --link: #6DB3F2;
  --link-hover: #93C5FD;
  --error: #FF6B6B;
  --success: #51CF66;
  --warning: #FFD93D;
  
  /* Shadows */
  --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.3);
  --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.4);
  --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.5);
  --shadow: 0 2px 4px rgba(0, 0, 0, 0.2);
  
  /* Additional dark mode colors */
  --hover-overlay: rgba(255, 255, 255, 0.1);
  --border-light: rgba(255, 255, 255, 0.1);
  --hover-color: #2F3133;
  --focus-color: #2F3133;
  --danger-bg-light: rgba(239, 68, 68, 0.1);
  --overlay-dark: rgba(0, 0, 0, 0.7);
  --skeleton-base: linear-gradient(90deg, #2D2F30 25%, #353738 50%, #2D2F30 75%);
  --white: #FFFFFF;
  --background-color: #181A1B;
  --text-color: #F3F3F3;
  --border-color: #575A5E;
  
  /* Legacy support */
  --primary-color: #6DB3F2;
  --success-color: #51CF66;
  --danger-color: #FF6B6B;
  --warning-color: #FFD93D;
  --info-color: #6DB3F2;
  
  /* Status backgrounds */
  --success-bg: rgba(34, 139, 34, 0.2);
  --success-text: #51CF66;
  --error-bg: rgba(220, 53, 69, 0.2);
  --error-text: #FF6B6B;
  --warning-bg: rgba(255, 193, 7, 0.2);
  --warning-text: #FFD93D;
  --info-bg: rgba(33, 150, 243, 0.2);
  --info-text: #6DB3F2;
  --info-hover: #5CA3E2;
  --warning-hover: #FFC707;
  --success-hover: #3EBF52;
  
  /* Navbar colors */
  --navbar-bg: #1a1a1a;
  --navbar-text: #f3f3f3;
  --navbar-hover: rgba(255, 255, 255, 0.1);
}

/* System preference detection - DISABLED to force manual theme selection */
/* Users must explicitly choose their theme via the toggle button */

/* Component Base Styles - Theme Agnostic */

/* Cards and Containers */
.card,
.metric-card,
.dashboard-card,
.content-card {
  background-color: var(--bg-card);
  color: var(--text-primary);
  border: 1px solid var(--border-default);
  box-shadow: var(--shadow-sm);
  transition: all 0.2s ease;
}

.card:hover,
.metric-card:hover,
.dashboard-card:hover {
  box-shadow: var(--shadow-md);
  border-color: var(--border-focus);
}

/* Form Elements */
input,
textarea,
select,
.form-control {
  background-color: var(--bg-input);
  color: var(--text-primary);
  border: 1px solid var(--border-default);
  transition: all 0.2s ease;
}

input:focus,
textarea:focus,
select:focus,
.form-control:focus {
  border-color: var(--border-focus);
  outline: 2px solid var(--border-focus);
  outline-offset: 2px;
}

input::placeholder,
textarea::placeholder {
  color: var(--text-muted);
  opacity: 1; /* Firefox fix */
}

/* Buttons */
button,
.btn {
  background-color: var(--bg-card);
  color: var(--text-primary);
  border: 1px solid var(--border-default);
  transition: all 0.2s ease;
}

button:hover,
.btn:hover {
  background-color: var(--bg-hover);
  border-color: var(--border-focus);
}

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

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

/* Links */
a {
  color: var(--link);
  text-decoration: none;
  transition: color 0.2s ease;
}

a:hover {
  color: var(--link-hover);
  text-decoration: underline;
}

/* Status Colors */
.error,
.alert-error {
  color: var(--error);
}

.success,
.alert-success {
  color: var(--success);
}

.warning,
.alert-warning {
  color: var(--warning);
}

/* Text Hierarchy */
.text-secondary {
  color: var(--text-secondary);
}

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

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

th {
  background-color: var(--bg-card);
  color: var(--text-primary);
  border-bottom: 2px solid var(--border-default);
}

td {
  border-bottom: 1px solid var(--border-subtle);
}

tr:hover {
  background-color: var(--bg-hover);
}

/* Navigation */
nav,
.navbar {
  background-color: var(--bg-card);
  border-bottom: 1px solid var(--border-default);
}

.nav-link {
  color: var(--text-primary);
}

.nav-link:hover {
  color: var(--link);
  background-color: var(--bg-hover);
}

.nav-link.active {
  color: var(--link);
  border-bottom: 2px solid var(--link);
}

/* Modals and Overlays */
.modal,
.dialog {
  background-color: var(--bg-surface);
  color: var(--text-primary);
  border: 1px solid var(--border-default);
  box-shadow: var(--shadow-lg);
}

.modal-overlay {
  background-color: rgba(0, 0, 0, 0.5);
}

body.theme-dark .modal-overlay {
  background-color: rgba(0, 0, 0, 0.7);
}

/* Utility Classes */
.bg-surface {
  background-color: var(--bg-surface);
}

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

.border {
  border-color: var(--border-default);
}

.shadow-sm {
  box-shadow: var(--shadow-sm);
}

.shadow-md {
  box-shadow: var(--shadow-md);
}

.shadow-lg {
  box-shadow: var(--shadow-lg);
}

/* Accessibility Focus States */
*:focus-visible {
  outline: 2px solid var(--border-focus);
  outline-offset: 2px;
}

/* Skip to main content link */
.skip-link {
  position: absolute;
  top: -40px;
  left: 0;
  background: var(--bg-card);
  color: var(--text-primary);
  padding: 8px;
  text-decoration: none;
  border: 2px solid var(--border-focus);
}

.skip-link:focus {
  top: 0;
}

/* Theme Toggle Button */
.theme-toggle-btn {
  position: fixed;
  bottom: 20px;
  right: 20px;
  width: 48px;
  height: 48px;
  border-radius: 50%;
  background-color: var(--bg-card);
  color: var(--text-primary);
  border: 2px solid var(--border-default);
  box-shadow: var(--shadow-md);
  font-size: 24px;
  cursor: pointer;
  transition: all 0.3s ease;
  z-index: 1000;
  display: flex;
  align-items: center;
  justify-content: center;
}

.theme-toggle-btn:hover {
  transform: scale(1.1);
  box-shadow: var(--shadow-lg);
  border-color: var(--border-focus);
}

.theme-toggle-btn:active {
  transform: scale(0.95);
}

/* Mobile adjustments for theme toggle */
@media (max-width: 768px) {
  .theme-toggle-btn {
    bottom: 90px; /* Clear space above carousel dots */
    right: 15px;
    width: 44px;
    height: 44px;
    font-size: 20px;
    z-index: 1001; /* Above carousel elements */
  }
}

/* Print styles */
@media print {
  body {
    background: white !important;
    color: black !important;
  }
  
  .no-print,
  .theme-toggle-btn {
    display: none !important;
  }
}