/* Dark Mode Variables */
:root {
    --pcs-bg-primary: #ffffff;
    --pcs-bg-secondary: #f8f9fa;
    --pcs-bg-tertiary: #e9ecef;
    --pcs-text-primary: #212529;
    --pcs-text-secondary: #6c757d;
    --pcs-border-color: #dee2e6;
    --pcs-card-bg: #ffffff;
    --pcs-shadow: rgba(0, 0, 0, 0.1);
    --pcs-shadow-hover: rgba(0, 0, 0, 0.15);
}

[data-bs-theme="dark"] {
    --pcs-bg-primary: #1a1d20;
    --pcs-bg-secondary: #212529;
    --pcs-bg-tertiary: #2c3034;
    --pcs-text-primary: #e9ecef;
    --pcs-text-secondary: #adb5bd;
    --pcs-border-color: #495057;
    --pcs-card-bg: #212529;
    --pcs-shadow: rgba(0, 0, 0, 0.3);
    --pcs-shadow-hover: rgba(0, 0, 0, 0.4);
}

/* Apply Dark Mode Styles */
[data-bs-theme="dark"] {
    background-color: var(--pcs-bg-primary);
    color: var(--pcs-text-primary);
}

[data-bs-theme="dark"] .card {
    background-color: var(--pcs-card-bg);
    border-color: var(--pcs-border-color);
    color: var(--pcs-text-primary);
}

[data-bs-theme="dark"] .nav-tabs .nav-link {
    color: var(--pcs-text-secondary);
}

[data-bs-theme="dark"] .nav-tabs .nav-link.active {
    background-color: color-mix(in srgb, var(--bs-primary) 15%, transparent);
}

[data-bs-theme="dark"] .form-control,
[data-bs-theme="dark"] .form-select {
    background-color: var(--pcs-bg-tertiary);
    border-color: var(--pcs-border-color);
    color: var(--pcs-text-primary);
}

[data-bs-theme="dark"] .input-group-text {
    background-color: var(--pcs-bg-tertiary);
    border-color: var(--pcs-border-color);
    color: var(--pcs-text-primary);
}

[data-bs-theme="dark"] .timeline::before {
    background: var(--pcs-border-color);
}

[data-bs-theme="dark"] .timeline-marker {
    box-shadow: 0 0 0 4px var(--pcs-bg-primary);
}

[data-bs-theme="dark"] .timeline-content {
    background-color: var(--pcs-card-bg);
    border-color: var(--pcs-border-color);
}

[data-bs-theme="dark"] .parameter-item,
[data-bs-theme="dark"] .command-card,
[data-bs-theme="dark"] .maintenance-card,
[data-bs-theme="dark"] .info-item {
    background-color: var(--pcs-card-bg);
    border-color: var(--pcs-border-color);
}

[data-bs-theme="dark"] .parameter-value.readonly,
[data-bs-theme="dark"] .details-panel {
    background-color: var(--pcs-bg-tertiary);
}

[data-bs-theme="dark"] .breadcrumb-item a {
    color: var(--bs-primary);
}

[data-bs-theme="dark"] .text-muted {
    color: var(--pcs-text-secondary) !important;
}

/* Modern Components - Button Dark Mode */
[data-bs-theme="dark"] .btn {
    border-color: var(--bs-border-color);
}

[data-bs-theme="dark"] .btn:disabled {
    opacity: 0.5;
}

/* Modern Components - Drawer/Offcanvas Dark Mode */
[data-bs-theme="dark"] .offcanvas {
    box-shadow: -2px 0 8px rgba(0, 0, 0, 0.4);
}

/* DevExpress Charts Dark Mode */
[data-bs-theme="dark"] .dxc-chart {
    color: var(--pcs-text-primary);
}

[data-bs-theme="dark"] .dxc-chart svg {
    color: var(--pcs-text-primary);
}

[data-bs-theme="dark"] .dxc-chart text {
    fill: var(--pcs-text-primary) !important;
}

[data-bs-theme="dark"] .dxc-tooltip {
    background-color: var(--pcs-bg-tertiary) !important;
    border-color: var(--pcs-border-color) !important;
    color: var(--pcs-text-primary) !important;
}

[data-bs-theme="dark"] .dxc-legend-item {
    color: var(--pcs-text-primary);
}

[data-bs-theme="dark"] .dxc-label text {
    fill: var(--pcs-text-primary) !important;
}

[data-bs-theme="dark"] .dxc-connector line {
    stroke: var(--pcs-border-color) !important;
}

/* Dark Mode Toggle Button */
.theme-toggle {
    position: fixed;
    bottom: 2rem;
    right: 2rem;
    z-index: 1050;
    width: 3rem;
    height: 3rem;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--bs-primary), var(--bs-info));
    border: none;
    box-shadow: 0 4px 12px var(--pcs-shadow-hover);
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-size: 1.25rem;
    cursor: pointer;
    transition: all 250ms ease;
}

.theme-toggle:hover {
    transform: scale(1.1) rotate(15deg);
    box-shadow: 0 6px 20px var(--pcs-shadow-hover);
}

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

/* Scrollbar Dark Mode */
[data-bs-theme="dark"] ::-webkit-scrollbar-track {
    background: var(--pcs-bg-tertiary);
}

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

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

/* Empty State Dark Mode */
[data-bs-theme="dark"] .empty-state i {
    opacity: 0.2;
}

/* Badge Dark Mode Adjustments */
[data-bs-theme="dark"] .badge.bg-warning {
    color: #000;
}

[data-bs-theme="dark"] .filter-badge:not(.active) {
    background: color-mix(in srgb, var(--bs-secondary) 20%, transparent);
}

/* Alert Dark Mode */
[data-bs-theme="dark"] .alert {
    border-color: var(--pcs-border-color);
}

[data-bs-theme="dark"] .alert-warning {
    background-color: color-mix(in srgb, var(--bs-warning) 20%, var(--pcs-card-bg));
    color: var(--bs-warning);
    border-color: var(--bs-warning);
}

[data-bs-theme="dark"] .alert-danger {
    background-color: color-mix(in srgb, var(--bs-danger) 20%, var(--pcs-card-bg));
    color: #ff6b6b;
    border-color: var(--bs-danger);
}

[data-bs-theme="dark"] .alert-info {
    background-color: color-mix(in srgb, var(--bs-info) 20%, var(--pcs-card-bg));
    color: var(--bs-info);
    border-color: var(--bs-info);
}

/* List Group Dark Mode */
[data-bs-theme="dark"] .list-group-item {
    background-color: var(--pcs-card-bg);
    border-color: var(--pcs-border-color);
    color: var(--pcs-text-primary);
}

[data-bs-theme="dark"] .list-group-item-action:hover {
    background-color: color-mix(in srgb, var(--bs-primary) 10%, var(--pcs-card-bg));
}

/* Container Dark Mode */
[data-bs-theme="dark"] .container-xxl,
[data-bs-theme="dark"] .container-fluid {
    background-color: transparent;
}

/* Progress Bar Dark Mode */
[data-bs-theme="dark"] .progress {
    background-color: var(--pcs-bg-tertiary);
}

/* Tab Content Dark Mode */
[data-bs-theme="dark"] .tab-content {
    background-color: transparent;
}

/* Mobile Responsive */
@media (max-width: 768px) {
    .theme-toggle {
        bottom: 1rem;
        right: 1rem;
        width: 2.5rem;
        height: 2.5rem;
        font-size: 1rem;
    }
}