[data-theme="dark"] .logo-light,
[data-theme="light"] .logo-dark { display: none; }

[data-theme="dark"] {
    --bg-body: #0f172a;
    --bg-card: #1e293b;
    --bg-input: #0f172a;
    --bg-hover: #334155;
    --border-color: #334155;
    --border-strong: #475569;
    --text-primary: #f8fafc;
    --text-secondary: #cbd5e1;
    --text-muted: #94a3b8;
    --text-label: #cbd5e1;
    --text-heading: #ffffff;
    --btn-back-bg: #334155;
    --btn-back-color: #f8fafc;
    --btn-back-hover: #475569;
    --search-bg: #0f172a;
    --search-color: #fff;
    --search-placeholder: #94a3b8;
    --modal-bg: #1e293b;
    --modal-border: #334155;
    --table-color: #f8fafc;
    --table-head-color: #94a3b8;
    --link-color: #38bdf8;
    --badge-dark-bg: #1e293b;
    --badge-dark-border: #475569;
    --badge-dark-color: #94a3b8;
    --close-btn-filter: invert(1);
    --chart-bg: #1a1a2e;
    --logo-filter: none;
}

[data-theme="light"] {
    --bg-body: #f1f5f9;
    --bg-card: #ffffff;
    --bg-input: #ffffff;
    --bg-hover: #e2e8f0;
    --border-color: #e2e8f0;
    --border-strong: #cbd5e1;
    --text-primary: #1e293b;
    --text-secondary: #475569;
    --text-muted: #64748b;
    --text-label: #374151;
    --text-heading: #0f172a;
    --btn-back-bg: #e2e8f0;
    --btn-back-color: #1e293b;
    --btn-back-hover: #cbd5e1;
    --search-bg: #ffffff;
    --search-color: #1e293b;
    --search-placeholder: #94a3b8;
    --modal-bg: #ffffff;
    --modal-border: #e2e8f0;
    --table-color: #1e293b;
    --table-head-color: #64748b;
    --link-color: #0284c7;
    --badge-dark-bg: #f1f5f9;
    --badge-dark-border: #cbd5e1;
    --badge-dark-color: #475569;
    --close-btn-filter: none;
    --chart-bg: #f8fafc;
    --logo-filter: none;
}

body {
    background-color: var(--bg-body) !important;
    color: var(--text-primary) !important;
    transition: background-color 0.2s, color 0.2s;
}

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

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

.table thead th {
    border-bottom-color: var(--border-strong) !important;
    color: var(--table-head-color) !important;
}

.table tbody tr {
    border-bottom-color: var(--border-color) !important;
}

.table-hover tbody tr:hover {
    background-color: var(--bg-hover) !important;
    color: var(--text-heading) !important;
}

.form-control, .form-select {
    background-color: var(--bg-input) !important;
    border-color: var(--border-color) !important;
    color: var(--search-color) !important;
}

.form-control:focus, .form-select:focus {
    background-color: var(--bg-input) !important;
    color: var(--search-color) !important;
    border-color: #38bdf8 !important;
    box-shadow: none !important;
}

.form-control::placeholder {
    color: var(--search-placeholder) !important;
}

.form-select option {
    background-color: var(--bg-input);
    color: var(--search-color);
}

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

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

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

[data-theme="dark"] .form-check-input {
    background-color: #334155;
    border-color: #475569;
}

[data-theme="light"] .form-check-input {
    background-color: #e2e8f0;
    border-color: #cbd5e1;
}

.form-check-input:checked {
    background-color: #3b82f6 !important;
    border-color: #3b82f6 !important;
}

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

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

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

.btn-close-white {
    filter: var(--close-btn-filter);
}

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

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

.btn-back, .btn-nav {
    background-color: var(--btn-back-bg) !important;
    color: var(--btn-back-color) !important;
    border: none;
}

.btn-back:hover, .btn-nav:hover {
    background-color: var(--btn-back-hover) !important;
    color: var(--text-heading) !important;
}

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

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

.bg-dark-themed {
    background-color: var(--chart-bg) !important;
}

.badge.bg-dark {
    background-color: var(--badge-dark-bg) !important;
    border-color: var(--badge-dark-border) !important;
    color: var(--badge-dark-color) !important;
}

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

.btn-theme-toggle {
    background-color: var(--btn-back-bg);
    color: var(--btn-back-color);
    border: 1px solid var(--border-color);
    font-size: 0.85rem;
    padding: 4px 12px;
    border-radius: 6px;
    cursor: pointer;
    transition: background-color 0.2s;
    display: inline-flex;
    align-items: center;
    gap: 5px;
}

.btn-theme-toggle:hover {
    background-color: var(--btn-back-hover);
    color: var(--text-heading);
}

[data-theme="light"] .status-up {
    color: #16a34a;
    background-color: rgba(22, 163, 74, 0.1);
}

[data-theme="light"] .status-down {
    color: #dc2626;
    background-color: rgba(220, 38, 38, 0.1);
}

[data-theme="light"] .status-warning, [data-theme="light"] .status-warn {
    color: #d97706;
    background-color: rgba(217, 119, 6, 0.1);
}

[data-theme="light"] .text-stat-total { color: #16a34a !important; }
[data-theme="light"] .text-stat-svc { color: #0284c7 !important; }
[data-theme="light"] .text-stat-down { color: #dc2626 !important; }
[data-theme="light"] .text-stat-scan { color: #64748b !important; }

[data-theme="light"] .alert-danger {
    background-color: rgba(220, 38, 38, 0.08);
    border-color: #dc2626;
    color: #dc2626;
}

[data-theme="light"] .btn-primary {
    background-color: #0284c7;
    color: #fff;
}

[data-theme="light"] .btn-primary:hover {
    background-color: #0369a1;
    color: #fff;
}

[data-theme="light"] hr.border-secondary {
    border-color: var(--border-color) !important;
}

.btn-settings {
    background-color: var(--btn-back-bg);
    color: var(--btn-back-color);
    border: 1px solid var(--border-color);
    font-size: 0.85rem;
    padding: 6px 14px;
    border-radius: 6px;
    transition: background-color 0.2s;
}

.btn-settings:hover, .btn-settings:focus, .btn-settings.show {
    background-color: var(--btn-back-hover);
    color: var(--text-heading);
    border-color: var(--border-strong);
}

.dropdown-menu {
    background-color: var(--bg-card) !important;
    border-color: var(--border-color) !important;
    min-width: 220px;
    box-shadow: 0 10px 40px rgba(0,0,0,0.3);
}

.dropdown-item {
    color: var(--text-primary) !important;
    font-size: 0.9rem;
    padding: 8px 16px;
}

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

.dropdown-item.text-danger {
    color: #ef4444 !important;
}

.dropdown-item.text-danger:hover {
    background-color: rgba(239, 68, 68, 0.1) !important;
    color: #f87171 !important;
}

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

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