/* === DARK MODE CSS VARIABLES === */
:root {
    --bg-body: #f5f7fa;
    --bg-card: #ffffff;
    --bg-header: #ffffff;
    --bg-sidebar: #ffffff;
    --bg-hover: #f8f9fa;
    --bg-input: #ffffff;
    --bg-table-head: #f8f9fa;
    --bg-badge-info: #d1ecf1;
    --text-primary: #333333;
    --text-secondary: #666666;
    --text-muted: #999999;
    --text-badge-info: #0c5460;
    --border-color: #e0e0e0;
    --border-hover: #667eea;
    --shadow: rgba(0,0,0,0.05);
    --shadow-lg: rgba(0,0,0,0.3);
    --accent: #667eea;
    --accent-hover: #5568d3;
    --danger: #dc3545;
    --success: #28a745;
    --warning: #ffc107;
    --code-bg: #f8f9fa;
    --input-border: #e0e0e0;
    --input-focus: #667eea;
    --modal-overlay: rgba(0,0,0,0.5);
    --scrollbar-track: #f1f1f1;
    --scrollbar-thumb: #c1c1c1;
    --toast-bg: #ffffff;
    --stat-sub: #f0f0f0;
}

[data-theme="dark"] {
    --bg-body: #0f1117;
    --bg-card: #1a1d27;
    --bg-header: #1a1d27;
    --bg-sidebar: #1a1d27;
    --bg-hover: #22273a;
    --bg-input: #22273a;
    --bg-table-head: #22273a;
    --bg-badge-info: #0c3d47;
    --text-primary: #e8eaf0;
    --text-secondary: #a0a8b8;
    --text-muted: #6b7280;
    --text-badge-info: #7dd3eb;
    --border-color: #2e3347;
    --border-hover: #667eea;
    --shadow: rgba(0,0,0,0.3);
    --shadow-lg: rgba(0,0,0,0.6);
    --accent: #7c8ff5;
    --accent-hover: #667eea;
    --danger: #ef4444;
    --success: #22c55e;
    --warning: #f59e0b;
    --code-bg: #22273a;
    --input-border: #2e3347;
    --input-focus: #7c8ff5;
    --modal-overlay: rgba(0,0,0,0.7);
    --scrollbar-track: #1a1d27;
    --scrollbar-thumb: #3a3f5a;
    --toast-bg: #1a1d27;
    --stat-sub: #22273a;
}

/* === DARK MODE OVERRIDES FOR COMMON ELEMENTS === */
[data-theme="dark"] body {
    background: var(--bg-body);
    color: var(--text-primary);
}

[data-theme="dark"] .header {
    background: var(--bg-header) !important;
    border-color: var(--border-color) !important;
}

[data-theme="dark"] .sidebar {
    background: var(--bg-sidebar) !important;
    border-color: var(--border-color) !important;
}

[data-theme="dark"] .sidebar-nav a {
    color: var(--text-secondary) !important;
}

[data-theme="dark"] .sidebar-nav a:hover,
[data-theme="dark"] .sidebar-nav a.active {
    background: var(--bg-hover) !important;
    color: var(--accent) !important;
}

[data-theme="dark"] .card,
[data-theme="dark"] .stat-card,
[data-theme="dark"] .site-status-card,
[data-theme="dark"] .site-card {
    background: var(--bg-card) !important;
    border-color: var(--border-color) !important;
}

[data-theme="dark"] .card-header,
[data-theme="dark"] .modal-header {
    border-color: var(--border-color) !important;
}

[data-theme="dark"] .card-title,
[data-theme="dark"] .page-title,
[data-theme="dark"] .modal-title,
[data-theme="dark"] .stat-card-value,
[data-theme="dark"] h1, [data-theme="dark"] h2, [data-theme="dark"] h3 {
    color: var(--text-primary) !important;
}

[data-theme="dark"] .page-subtitle,
[data-theme="dark"] .stat-card-title,
[data-theme="dark"] .stat-card-sub,
[data-theme="dark"] label {
    color: var(--text-secondary) !important;
}

[data-theme="dark"] .table th {
    background: var(--bg-table-head) !important;
    color: var(--text-secondary) !important;
}

[data-theme="dark"] .table td {
    color: var(--text-primary) !important;
    border-color: var(--border-color) !important;
}

[data-theme="dark"] .table tr:hover {
    background: var(--bg-hover) !important;
}

[data-theme="dark"] input[type="text"],
[data-theme="dark"] input[type="email"],
[data-theme="dark"] input[type="password"],
[data-theme="dark"] input[type="number"],
[data-theme="dark"] input[type="url"],
[data-theme="dark"] select,
[data-theme="dark"] textarea {
    background: var(--bg-input) !important;
    border-color: var(--input-border) !important;
    color: var(--text-primary) !important;
}

[data-theme="dark"] input::placeholder,
[data-theme="dark"] textarea::placeholder {
    color: var(--text-muted) !important;
}

[data-theme="dark"] input:focus,
[data-theme="dark"] select:focus,
[data-theme="dark"] textarea:focus {
    border-color: var(--input-focus) !important;
}

[data-theme="dark"] .btn-secondary {
    background: var(--bg-hover) !important;
    color: var(--text-secondary) !important;
    border-color: var(--border-color) !important;
}

[data-theme="dark"] .btn-secondary:hover {
    background: var(--border-color) !important;
    color: var(--text-primary) !important;
}

[data-theme="dark"] code {
    background: var(--code-bg) !important;
    color: var(--accent) !important;
}

[data-theme="dark"] .modal-content {
    background: var(--bg-card) !important;
}

[data-theme="dark"] .badge-info {
    background: var(--bg-badge-info) !important;
    color: var(--text-badge-info) !important;
}

[data-theme="dark"] .stat-card-icon {
    filter: brightness(0.8);
}

[data-theme="dark"] .info-box {
    background: #0c2340 !important;
    border-color: #1a4a7a !important;
}

[data-theme="dark"] .info-box h4 { color: #60a5fa !important; }
[data-theme="dark"] .info-box p { color: #93c5fd !important; }

[data-theme="dark"] .placeholder-info {
    background: #1a1500 !important;
    border-color: #44390a !important;
}

[data-theme="dark"] .placeholder-info h4 { color: #d4a017 !important; }
[data-theme="dark"] .placeholder-info code { background: #2a2000 !important; }

[data-theme="dark"] .alert-error {
    background: #2d0a0a !important;
    border-color: #7f1d1d !important;
    color: #fca5a5 !important;
}

[data-theme="dark"] .alert-success {
    background: #052e16 !important;
    border-color: #14532d !important;
    color: #86efac !important;
}

[data-theme="dark"] .user-menu {
    background: var(--bg-hover) !important;
}

[data-theme="dark"] .filter-btn {
    background: var(--bg-card) !important;
    border-color: var(--border-color) !important;
    color: var(--text-primary) !important;
}

[data-theme="dark"] .filter-btn.active {
    background: var(--accent) !important;
    border-color: var(--accent) !important;
    color: white !important;
}

[data-theme="dark"] .tab-navigation {
    background: var(--bg-table-head) !important;
    border-color: var(--border-color) !important;
}

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

[data-theme="dark"] .tab-button.active {
    background: var(--bg-card) !important;
    color: var(--accent) !important;
}

[data-theme="dark"] .section-divider {
    border-color: var(--border-color) !important;
}

[data-theme="dark"] .site-stat {
    background: var(--bg-hover) !important;
}

[data-theme="dark"] .live-badge {
    background: #052e16 !important;
    color: #86efac !important;
}

[data-theme="dark"] .live-badge.loading {
    background: #1a0e00 !important;
    color: #fcd34d !important;
}

[data-theme="dark"] .live-badge.error {
    background: #2d0a0a !important;
    color: #fca5a5 !important;
}

/* === DARK MODE TOGGLE BUTTON === */
.dark-mode-toggle {
    background: none;
    border: 2px solid var(--border-color);
    border-radius: 8px;
    width: 38px;
    height: 38px;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 18px;
    transition: all 0.2s;
    color: var(--text-secondary);
    flex-shrink: 0;
}
.dark-mode-toggle:hover {
    border-color: var(--accent);
    color: var(--accent);
    background: var(--bg-hover);
}

/* === LANGUAGE SWITCHER === */
.lang-switcher {
    display: flex;
    align-items: center;
    gap: 4px;
    background: var(--bg-hover);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    padding: 4px;
    flex-shrink: 0;
}
.lang-btn {
    padding: 4px 8px;
    border: none;
    background: none;
    border-radius: 5px;
    cursor: pointer;
    font-size: 12px;
    font-weight: 600;
    color: var(--text-muted);
    transition: all 0.2s;
}
.lang-btn.active {
    background: var(--accent);
    color: white;
}
.lang-btn:hover:not(.active) {
    color: var(--accent);
}

/* === TOAST NOTIFICATIONS === */
#toast-container {
    position: fixed;
    bottom: 30px;
    right: 30px;
    z-index: 9999;
    display: flex;
    flex-direction: column;
    gap: 10px;
    pointer-events: none;
}
.toast {
    background: var(--toast-bg);
    padding: 14px 20px;
    border-radius: 12px;
    box-shadow: 0 10px 40px var(--shadow-lg);
    display: flex;
    align-items: center;
    gap: 12px;
    min-width: 300px;
    max-width: 400px;
    transform: translateX(120%);
    transition: transform 0.3s cubic-bezier(0.34, 1.56, 0.64, 1);
    pointer-events: all;
    border: 1px solid var(--border-color);
}
.toast.show { transform: translateX(0); }
.toast.success { border-left: 4px solid var(--success); }
.toast.error   { border-left: 4px solid var(--danger); }
.toast.info    { border-left: 4px solid var(--accent); }
.toast.warning { border-left: 4px solid var(--warning); }
.toast-icon { font-size: 18px; flex-shrink: 0; }
.toast.success .toast-icon { color: var(--success); }
.toast.error   .toast-icon { color: var(--danger); }
.toast.info    .toast-icon { color: var(--accent); }
.toast.warning .toast-icon { color: var(--warning); }
.toast-body { flex: 1; }
.toast-title { font-weight: 600; font-size: 14px; color: var(--text-primary); }
.toast-msg   { font-size: 13px; color: var(--text-secondary); margin-top: 2px; }
.toast-close {
    background: none; border: none; cursor: pointer;
    color: var(--text-muted); font-size: 18px; padding: 0; line-height: 1;
    transition: color 0.2s;
}
.toast-close:hover { color: var(--text-primary); }

/* === MOBILE RESPONSIVE === */
.mobile-menu-btn {
    display: none;
    background: none;
    border: 2px solid var(--border-color);
    border-radius: 8px;
    width: 38px;
    height: 38px;
    cursor: pointer;
    align-items: center;
    justify-content: center;
    font-size: 16px;
    color: var(--text-secondary);
    transition: all 0.2s;
    flex-shrink: 0;
}
.mobile-menu-btn:hover {
    border-color: var(--accent);
    color: var(--accent);
}

.sidebar-overlay {
    display: none;
    position: fixed;
    top: 0; left: 0; right: 0; bottom: 0;
    background: rgba(0,0,0,0.5);
    z-index: 199;
}
.sidebar-overlay.active { display: block; }

@media (max-width: 768px) {
    .mobile-menu-btn { display: flex; }

    .sidebar {
        transform: translateX(-100%);
        transition: transform 0.3s ease;
        z-index: 200;
    }
    .sidebar.mobile-open { transform: translateX(0); }

    .main-content {
        margin-left: 0 !important;
        padding: 15px !important;
    }

    .header {
        padding: 0 15px !important;
    }

    .stats-grid {
        grid-template-columns: repeat(2, 1fr) !important;
    }

    .site-status {
        grid-template-columns: 1fr !important;
    }

    .sites-grid {
        grid-template-columns: 1fr !important;
    }

    .page-header {
        flex-direction: column;
        align-items: flex-start !important;
        gap: 15px;
    }

    .table-container {
        overflow-x: auto;
    }

    .header-right {
        gap: 8px !important;
    }

    .user-menu span { display: none; }

    .form-grid {
        grid-template-columns: 1fr !important;
    }

    .tab-navigation {
        flex-wrap: wrap;
    }

    .filter-row {
        flex-wrap: wrap;
    }
}

@media (max-width: 480px) {
    .stats-grid {
        grid-template-columns: 1fr !important;
    }
    .lang-switcher { display: none; }
}

/* === SCROLLBAR STYLING === */
::-webkit-scrollbar { width: 6px; height: 6px; }
::-webkit-scrollbar-track { background: var(--scrollbar-track); }
::-webkit-scrollbar-thumb { background: var(--scrollbar-thumb); border-radius: 3px; }
::-webkit-scrollbar-thumb:hover { background: var(--text-muted); }

/* === SMOOTH TRANSITIONS === */
body, .card, .sidebar, .header, input, select, textarea, .btn {
    transition: background-color 0.2s, border-color 0.2s, color 0.2s;
}