/* ========================================
   Dark Theme Styles
   ======================================== */
body.dark-theme {
    /* Dark Theme Colors */
    --bg-primary: #1a1d2e;
    --bg-secondary: #151823;
    --bg-tertiary: #1f2333;
    --text-primary: #e4e7eb;
    --text-secondary: #9ca3af;
    --text-muted: #6b7280;
    --border-color: #2d3343;
    --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.3);
    --shadow-md: 0 4px 6px rgba(0, 0, 0, 0.4);
    --shadow-lg: 0 10px 25px rgba(0, 0, 0, 0.5);
    
    /* Sidebar Dark */
    --sidebar-bg: #1a1d2e;
    --sidebar-text: #9ca3af;
    --sidebar-hover: #1f2333;
    --sidebar-active: #6366f1;
    
    /* Header Dark */
    --header-bg: #1a1d2e;
}

/* Dark Theme Toggle Icons */
body.dark-theme .sun-icon {
    display: none;
}

body.dark-theme .moon-icon {
    display: block;
}

body:not(.dark-theme) .sun-icon {
    display: block;
}

body:not(.dark-theme) .moon-icon {
    display: none;
}

/* ========================================
   Theme Transition
   ======================================== */
body {
    transition: background-color 0.3s ease, color 0.3s ease;
}

.sidebar,
.header,
.stat-card,
.chart-card,
.table-card,
.search-input,
.user-dropdown,
.activity-item,
.card,
.form-control,
.modal-container,
.alert {
    transition: background-color 0.3s ease, border-color 0.3s ease, color 0.3s ease;
}

/* ========================================
   Dark Theme Specific Adjustments
   ======================================== */
body.dark-theme .stat-card:hover,
body.dark-theme .chart-card,
body.dark-theme .table-card,
body.dark-theme .card {
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.4);
}

body.dark-theme .data-table tbody tr:hover {
    background: var(--bg-tertiary);
}

body.dark-theme .sidebar::-webkit-scrollbar-thumb {
    background: #2d3343;
}

body.dark-theme .sidebar::-webkit-scrollbar-thumb:hover {
    background: #374151;
}

/* Dark Theme Card Styles */
body.dark-theme .card {
    background: var(--bg-primary);
    border-color: var(--border-color);
}

body.dark-theme .card .card-header {
    background: var(--bg-secondary);
    border-color: var(--border-color);
}

body.dark-theme .card .card-footer {
    background: var(--bg-secondary);
    border-color: var(--border-color);
}

/* Dark Theme Form Controls */
body.dark-theme .form-control {
    background: var(--bg-secondary);
    border-color: var(--border-color);
    color: var(--text-primary);
}

body.dark-theme .form-control:focus {
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(99, 102, 241, 0.25);
}

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

body.dark-theme select.form-control {
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='16' height='16' viewBox='0 0 24 24' fill='none' stroke='%239ca3af' stroke-width='2'%3E%3Cpolyline points='6 9 12 15 18 9'%3E%3C/polyline%3E%3C/svg%3E");
}

/* Dark Theme Button Outline */
body.dark-theme .btn-outline-primary {
    border-color: var(--primary-color);
    color: var(--primary-color);
}

body.dark-theme .btn-secondary {
    background: var(--bg-tertiary);
    color: var(--text-primary);
}

body.dark-theme .btn-secondary:hover {
    background: var(--border-color);
}

/* Dark Theme Modal */
body.dark-theme .modal-container {
    background: var(--bg-primary);
}

body.dark-theme .modal-header {
    border-color: var(--border-color);
}

body.dark-theme .modal-footer {
    background: var(--bg-secondary);
    border-color: var(--border-color);
}

/* Dark Theme Form Check */
body.dark-theme .form-check-label {
    color: var(--text-primary);
}

/* Dark Theme Badge */
body.dark-theme .badge-secondary {
    background: var(--bg-tertiary);
    color: var(--text-primary);
}

/* Dark Theme Table */
body.dark-theme .data-table th {
    background: var(--bg-secondary);
    color: var(--text-secondary);
}

body.dark-theme .data-table td {
    border-color: var(--border-color);
    color: var(--text-primary);
}

/* Dark Theme Activity Item */
body.dark-theme .activity-item {
    background: var(--bg-secondary);
}

body.dark-theme .activity-item:hover {
    background: var(--bg-tertiary);
}

/* Dark Theme Overlay */
body.dark-theme .loading-overlay {
    background: rgba(26, 29, 46, 0.9);
}

/* ========================================
   Theme Toggle Button Animation
   ======================================== */ */
.theme-toggle {
    position: relative;
    overflow: hidden;
}

.theme-toggle svg {
    transition: all 0.3s ease;
}

.theme-toggle:hover svg {
    transform: rotate(20deg) scale(1.1);
}

/* ========================================
   Color Scheme Preference Support
   ======================================== */
@media (prefers-color-scheme: dark) {
    /* Auto dark theme if no preference is set */
    /* This can be enabled by removing the body selector requirement */
}