/* ===============================================
   COMPREHENSIVE DARK/LIGHT THEME SYSTEM
   =============================================== */

/* Light Theme (Default) Variables */
:root {
    /* Primary Colors */
    --primary-bg: #ffffff;
    --secondary-bg: #f8fafc;
    --tertiary-bg: #f1f5f9;
    --accent-bg: rgba(59, 130, 246, 0.05);
    
    /* Text Colors */
    --text-primary: #1e293b;
    --text-secondary: #64748b;
    --text-tertiary: #94a3b8;
    --text-muted: #cbd5e1;
    --text-inverse: #ffffff;
    
    /* Border Colors */
    --border-light: #e2e8f0;
    --border-medium: #cbd5e1;
    --border-dark: #94a3b8;
    
    /* Shadow Colors */
    --shadow-light: rgba(0, 0, 0, 0.05);
    --shadow-medium: rgba(0, 0, 0, 0.1);
    --shadow-dark: rgba(0, 0, 0, 0.15);
    --shadow-color-values: 0, 0, 0;
    
    /* Status Colors */
    --success-bg: #dcfce7;
    --success-text: #166534;
    --success-border: #bbf7d0;
    
    --warning-bg: #fef3c7;
    --warning-text: #92400e;
    --warning-border: #fde68a;
    
    --error-bg: #fef2f2;
    --error-text: #dc2626;
    --error-border: #fecaca;
    
    --info-bg: #dbeafe;
    --info-text: #1d4ed8;
    --info-border: #bfdbfe;
    
    /* Card & Component Colors */
    --card-bg: #ffffff;
    --card-border: #e2e8f0;
    --card-shadow: 0 1px 3px rgba(0, 0, 0, 0.1);
    
    /* Form Colors */
    --input-bg: #ffffff;
    --input-border: #d1d5db;
    --input-border-focus: #3b82f6;
    --input-text: #111827;
    --input-placeholder: #9ca3af;
    
    /* Button Colors */
    --button-primary-bg: #3b82f6;
    --button-primary-text: #ffffff;
    --button-primary-hover: #2563eb;
    
    --button-secondary-bg: #f3f4f6;
    --button-secondary-text: #374151;
    --button-secondary-hover: #e5e7eb;
    
    /* Navigation Colors */
    --nav-bg: rgba(255, 255, 255, 0.9);
    --nav-border: rgba(0, 0, 0, 0.1);
    --nav-link-text: #4b5563;
    --nav-link-hover: #1f2937;
    --nav-link-active: #3b82f6;
    
    /* Misc */
    --backdrop-blur: blur(20px);
    --transition-theme: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

/* Dark Theme Variables */
[data-theme="dark"] {
    /* Primary Colors */
    --primary-bg: #0f172a;
    --secondary-bg: #1e293b;
    --tertiary-bg: #334155;
    --accent-bg: rgba(59, 130, 246, 0.1);
    
    /* Text Colors */
    --text-primary: #f8fafc;
    --text-secondary: #cbd5e1;
    --text-tertiary: #94a3b8;
    --text-muted: #64748b;
    --text-inverse: #0f172a;
    
    /* Border Colors */
    --border-light: #334155;
    --border-medium: #475569;
    --border-dark: #64748b;
    
    /* Shadow Colors */
    --shadow-light: rgba(0, 0, 0, 0.2);
    --shadow-medium: rgba(0, 0, 0, 0.3);
    --shadow-dark: rgba(0, 0, 0, 0.4);
    --shadow-color-values: 0, 0, 0;
    
    /* Status Colors */
    --success-bg: rgba(34, 197, 94, 0.1);
    --success-text: #4ade80;
    --success-border: rgba(34, 197, 94, 0.2);
    
    --warning-bg: rgba(245, 158, 11, 0.1);
    --warning-text: #fbbf24;
    --warning-border: rgba(245, 158, 11, 0.2);
    
    --error-bg: rgba(239, 68, 68, 0.1);
    --error-text: #f87171;
    --error-border: rgba(239, 68, 68, 0.2);
    
    --info-bg: rgba(59, 130, 246, 0.1);
    --info-text: #60a5fa;
    --info-border: rgba(59, 130, 246, 0.2);
    
    /* Card & Component Colors */
    --card-bg: #1e293b;
    --card-border: #334155;
    --card-shadow: 0 4px 6px rgba(0, 0, 0, 0.3);
    
    /* Form Colors */
    --input-bg: #334155;
    --input-border: #475569;
    --input-border-focus: #60a5fa;
    --input-text: #f8fafc;
    --input-placeholder: #94a3b8;
    
    /* Button Colors */
    --button-primary-bg: #3b82f6;
    --button-primary-text: #ffffff;
    --button-primary-hover: #2563eb;
    
    --button-secondary-bg: #334155;
    --button-secondary-text: #cbd5e1;
    --button-secondary-hover: #475569;
    
    /* Navigation Colors */
    --nav-bg: rgba(15, 23, 42, 0.9);
    --nav-border: rgba(255, 255, 255, 0.1);
    --nav-link-text: #cbd5e1;
    --nav-link-hover: #f8fafc;
    --nav-link-active: #60a5fa;
}

/* ===============================================
   GLOBAL THEME APPLICATION
   =============================================== */

/* Body and HTML */
html,
body {
    background-color: var(--primary-bg);
    color: var(--text-primary);
    transition: var(--transition-theme);
}

/* Main Container */
main,
.container,
.container-fluid {
    background-color: var(--primary-bg);
    color: var(--text-primary);
}

/* ===============================================
   CARDS AND COMPONENTS
   =============================================== */

/* Cards */
.card,
.card-body,
.unified-card {
    background-color: var(--card-bg) !important;
    border-color: var(--card-border) !important;
    color: var(--text-primary) !important;
    box-shadow: var(--card-shadow) !important;
    transition: var(--transition-theme);
}

.card-header,
.card-footer {
    background-color: var(--secondary-bg) !important;
    border-color: var(--card-border) !important;
    color: var(--text-primary) !important;
}

/* Panels and Sections */
.panel,
.section,
.content-wrapper {
    background-color: var(--secondary-bg);
    color: var(--text-primary);
    border-color: var(--border-light);
}

/* ===============================================
   FORMS AND INPUTS
   =============================================== */

/* Form Controls */
.form-control,
.form-select,
.form-check-input,
input[type="text"],
input[type="email"],
input[type="password"],
input[type="search"],
input[type="url"],
input[type="tel"],
input[type="number"],
textarea,
select {
    background-color: var(--input-bg) !important;
    border-color: var(--input-border) !important;
    color: var(--input-text) !important;
    transition: var(--transition-theme);
}

.form-control:focus,
.form-select:focus,
input:focus,
textarea:focus,
select:focus {
    background-color: var(--input-bg) !important;
    border-color: var(--input-border-focus) !important;
    color: var(--input-text) !important;
    box-shadow: 0 0 0 0.2rem rgba(59, 130, 246, 0.25) !important;
}

.form-control::placeholder,
input::placeholder,
textarea::placeholder {
    color: var(--input-placeholder) !important;
}

/* Form Labels */
.form-label,
label {
    color: var(--text-primary) !important;
}

/* Form Text and Help */
.form-text,
.text-muted {
    color: var(--text-tertiary) !important;
}

/* ===============================================
   BUTTONS
   =============================================== */

/* Primary Button */
.btn-primary {
    background-color: var(--button-primary-bg) !important;
    border-color: var(--button-primary-bg) !important;
    color: var(--button-primary-text) !important;
}

.btn-primary:hover,
.btn-primary:focus {
    background-color: var(--button-primary-hover) !important;
    border-color: var(--button-primary-hover) !important;
    color: var(--button-primary-text) !important;
}

/* Secondary Button */
.btn-secondary {
    background-color: var(--button-secondary-bg) !important;
    border-color: var(--button-secondary-bg) !important;
    color: var(--button-secondary-text) !important;
}

.btn-secondary:hover,
.btn-secondary:focus {
    background-color: var(--button-secondary-hover) !important;
    border-color: var(--button-secondary-hover) !important;
    color: var(--button-secondary-text) !important;
}

/* Outline Buttons */
.btn-outline-primary {
    border-color: var(--button-primary-bg) !important;
    color: var(--button-primary-bg) !important;
}

.btn-outline-primary:hover {
    background-color: var(--button-primary-bg) !important;
    border-color: var(--button-primary-bg) !important;
    color: var(--button-primary-text) !important;
}

/* ===============================================
   NAVIGATION AND MENUS
   =============================================== */

/* Navbar */
.navbar {
    background-color: var(--nav-bg) !important;
    border-bottom-color: var(--nav-border) !important;
}

.navbar-brand,
.nav-link {
    color: var(--nav-link-text) !important;
}

.nav-link:hover,
.nav-link:focus {
    color: var(--nav-link-hover) !important;
}

.nav-link.active {
    color: var(--nav-link-active) !important;
}

/* Dropdown Menus */
.dropdown-menu {
    background-color: var(--card-bg) !important;
    border-color: var(--card-border) !important;
    box-shadow: 0 10px 25px rgba(var(--shadow-color-values), 0.2) !important;
}

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

.dropdown-item:hover,
.dropdown-item:focus {
    background-color: var(--accent-bg) !important;
    color: var(--text-primary) !important;
}

.dropdown-divider {
    border-color: var(--border-light) !important;
}

/* ===============================================
   TABLES
   =============================================== */

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

.table th,
.table td {
    border-color: var(--border-light) !important;
}

.table-striped > tbody > tr:nth-of-type(odd) > td,
.table-striped > tbody > tr:nth-of-type(odd) > th {
    background-color: var(--secondary-bg) !important;
}

.table-hover > tbody > tr:hover > td,
.table-hover > tbody > tr:hover > th {
    background-color: var(--accent-bg) !important;
}

/* ===============================================
   ALERTS AND NOTIFICATIONS
   =============================================== */

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

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

.alert-danger {
    background-color: var(--error-bg) !important;
    border-color: var(--error-border) !important;
    color: var(--error-text) !important;
}

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

/* ===============================================
   MODALS
   =============================================== */

.modal-content {
    background-color: var(--card-bg) !important;
    border-color: var(--card-border) !important;
    color: var(--text-primary) !important;
}

.modal-header,
.modal-footer {
    border-color: var(--border-light) !important;
}

.modal-title {
    color: var(--text-primary) !important;
}

/* Modal backdrop */
.modal-backdrop {
    background-color: rgba(var(--shadow-color-values), 0.5) !important;
}

/* ===============================================
   UTILITIES AND HELPERS
   =============================================== */

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

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

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

/* Background Colors */
.bg-primary {
    background-color: var(--primary-bg) !important;
}

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

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

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

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

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

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

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

/* ===============================================
   ENHANCED THEME TOGGLE ANIMATION
   =============================================== */

.theme-toggle {
    position: relative;
    overflow: hidden;
}

.theme-toggle.theme-switching {
    transform: scale(0.9);
}

.theme-icon {
    transition: all 0.3s cubic-bezier(0.68, -0.55, 0.265, 1.55);
}

[data-theme="dark"] .theme-toggle {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
}

[data-theme="light"] .theme-toggle {
    background: linear-gradient(135deg, #ffecd2 0%, #fcb69f 100%);
}

/* Footer-specific theme toggle enhancements */
[data-theme="dark"] .footer {
    background: rgba(15, 23, 42, 0.95);
}

[data-theme="dark"] .footer-theme-toggle .theme-label {
    color: var(--text-secondary);
}

[data-theme="dark"] .footer-bottom {
    background: rgba(0, 0, 0, 0.2);
    border-top-color: rgba(255, 255, 255, 0.05);
}

[data-theme="dark"] .footer-bottom-content p {
    color: var(--text-tertiary);
}

[data-theme="dark"] .footer-bottom-links a {
    color: var(--text-tertiary);
}

[data-theme="dark"] .footer-bottom-links a:hover {
    color: var(--nav-link-active);
}

/* Enhanced footer styling for dark theme */
[data-theme="dark"] .footer-section h3,
[data-theme="dark"] .footer-section h4 {
    color: var(--text-primary);
}

[data-theme="dark"] .footer-section p {
    color: var(--text-secondary);
}

[data-theme="dark"] .contact-info p {
    color: var(--text-secondary);
}

[data-theme="dark"] .footer-links a {
    color: var(--text-secondary);
}

[data-theme="dark"] .footer-links a:hover {
    color: var(--nav-link-active);
}

[data-theme="dark"] .newsletter-input {
    background: rgba(255, 255, 255, 0.05);
    color: var(--text-primary);
    border: 1px solid var(--border-light);
}

[data-theme="dark"] .newsletter-input:focus {
    background: rgba(255, 255, 255, 0.08);
    border-color: var(--nav-link-active);
}

[data-theme="dark"] .newsletter-input::placeholder {
    color: var(--text-tertiary);
}

/* Smooth transitions for theme changes */
* {
    transition: background-color 0.3s ease, 
                color 0.3s ease, 
                border-color 0.3s ease, 
                box-shadow 0.3s ease !important;
}

/* Reduce motion for users who prefer it */
@media (prefers-reduced-motion: reduce) {
    * {
        transition: none !important;
        animation: none !important;
    }
}

/* ===============================================
   PRINT STYLES (Force Light Theme)
   =============================================== */

@media print {
    * {
        background-color: white !important;
        color: black !important;
        box-shadow: none !important;
    }
}

/* ===============================================
   DARK MODE SCROLLBAR
   =============================================== */

[data-theme="dark"] ::-webkit-scrollbar {
    width: 8px;
    height: 8px;
}

[data-theme="dark"] ::-webkit-scrollbar-track {
    background: var(--secondary-bg);
}

[data-theme="dark"] ::-webkit-scrollbar-thumb {
    background: var(--border-dark);
    border-radius: 4px;
}

[data-theme="dark"] ::-webkit-scrollbar-thumb:hover {
    background: var(--text-tertiary);
}

/* Light mode scrollbar */
[data-theme="light"] ::-webkit-scrollbar {
    width: 8px;
    height: 8px;
}

[data-theme="light"] ::-webkit-scrollbar-track {
    background: var(--tertiary-bg);
}

[data-theme="light"] ::-webkit-scrollbar-thumb {
    background: var(--border-medium);
    border-radius: 4px;
}

[data-theme="light"] ::-webkit-scrollbar-thumb:hover {
    background: var(--border-dark);
}

/* ===============================================
   AUTH PAGES DARK MODE ENHANCEMENTS
   =============================================== */

/* Login and Register containers in dark mode */
[data-theme="dark"] .login-container,
[data-theme="dark"] .register-container {
    background: var(--card-bg) !important;
    border: 1px solid var(--card-border) !important;
    box-shadow: 0 25px 50px rgba(0, 0, 0, 0.5) !important;
}

/* Enhanced backdrop blur for dark mode */
[data-theme="dark"] .login-container {
    backdrop-filter: blur(20px) saturate(180%);
    background: rgba(30, 41, 59, 0.95) !important;
}

[data-theme="dark"] .register-container {
    backdrop-filter: blur(20px) saturate(180%);
    background: rgba(30, 41, 59, 0.95) !important;
}

/* Security notice dark mode */
[data-theme="dark"] .security-notice {
    background: var(--info-bg) !important;
    border-left-color: var(--info-text) !important;
    color: var(--info-text) !important;
}

/* Form elements in dark mode */
[data-theme="dark"] .form-control {
    background: var(--input-bg) !important;
    border-color: var(--input-border) !important;
    color: var(--input-text) !important;
}

[data-theme="dark"] .form-control:focus {
    border-color: var(--input-border-focus) !important;
    box-shadow: 0 0 0 3px rgba(96, 165, 250, 0.15) !important;
}

[data-theme="dark"] .form-control::placeholder {
    color: var(--input-placeholder) !important;
}

/* Password toggle in dark mode */
[data-theme="dark"] .password-toggle {
    color: var(--text-tertiary) !important;
}

[data-theme="dark"] .password-toggle:hover {
    color: var(--text-secondary) !important;
}

/* Login icon dark mode enhancement */
[data-theme="dark"] .login-icon {
    box-shadow: 0 10px 25px rgba(102, 126, 234, 0.4) !important;
}

/* Button hover effects for dark mode */
[data-theme="dark"] .login-btn:hover,
[data-theme="dark"] .register-btn:hover {
    box-shadow: 0 15px 35px rgba(102, 126, 234, 0.5) !important;
}