/* =============================================
   TALLAHASSEE TRAFFIC DASHBOARD - MODERN DESIGN
   Light-first with dark mode toggle option
   ============================================= */

/* Root variables - LIGHT THEME (default) */
:root {
    --primary: #6366f1;
    --primary-hover: #4f46e5;
    --success: #10b981;
    --success-glow: rgba(16, 185, 129, 0.15);
    --warning: #f59e0b;
    --danger: #ef4444;
    --info: #0ea5e9;
    --dark: #0f172a;
    --light: #f5f7fa;
    --surface: #ffffff;
    --surface-hover: #f8f9fb;
    --gray-100: #f3f4f6;
    --gray-200: #e5e7eb;
    --gray-300: #d1d5db;
    --gray-400: #9ca3af;
    --gray-500: #6b7280;
    --gray-600: #4b5563;
    --gray-700: #374151;
    --gray-800: #1f2937;
    --gray-900: #111827;
    --border-radius: 14px;
    --shadow-sm: 0 1px 3px rgba(15,23,42,0.04);
    --shadow: 0 2px 8px rgba(15,23,42,0.06);
    --shadow-md: 0 4px 16px rgba(15,23,42,0.08);
    --shadow-lg: 0 8px 32px rgba(15,23,42,0.1);
    --glass: rgba(255,255,255,0.92);
    --glass-border: rgba(15,23,42,0.06);
    --accent-gradient: linear-gradient(135deg, #0d9488, #6366f1);
}

/* ---- Base ---- */
body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    background-color: var(--light);
    color: var(--gray-800);
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
}

/* ---- Sidebar ---- */
.sidebar {
    background: var(--surface) !important;
    border-right: 1px solid var(--glass-border) !important;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

.sidebar .nav-link-custom {
    color: var(--gray-600);
    border-radius: 10px;
    margin: 3px 10px;
    padding: 11px 16px;
    transition: all 0.2s cubic-bezier(0.4, 0, 0.2, 1);
    font-weight: 500;
    font-size: 0.9rem;
    position: relative;
    overflow: hidden;
}

.sidebar .nav-link-custom::before {
    content: '';
    position: absolute;
    left: 0;
    top: 50%;
    transform: translateY(-50%) scaleY(0);
    width: 3px;
    height: 60%;
    background: var(--accent-gradient);
    border-radius: 0 3px 3px 0;
    transition: transform 0.2s ease;
}

.sidebar .nav-link-custom:hover {
    background-color: var(--gray-100);
    color: var(--gray-900);
    transform: translateX(2px);
}

.sidebar .nav-link-custom:hover::before {
    transform: translateY(-50%) scaleY(1);
}

.sidebar .nav-link-custom.active {
    background: #ccfbf1 !important;
    color: #0d9488 !important;
    font-weight: 600;
}

.sidebar .nav-link-custom.active::before {
    transform: translateY(-50%) scaleY(1);
}

.sidebar .nav-link-custom.active i {
    color: #0d9488 !important;
}

/* ---- Cards ---- */
.card {
    background: var(--surface) !important;
    border-radius: var(--border-radius) !important;
    border: 1px solid var(--glass-border) !important;
    transition: all 0.2s ease;
    overflow: hidden;
    box-shadow: var(--shadow);
}

.card:hover {
    box-shadow: var(--shadow-md);
}

.card-header {
    background: var(--surface) !important;
    border-bottom: 1px solid var(--glass-border) !important;
    padding: 18px 22px;
    color: var(--gray-800);
}

.card-body {
    padding: 22px;
    color: var(--gray-700);
}

/* ---- Buttons ---- */
.btn {
    border-radius: 10px;
    font-weight: 600;
    transition: all 0.2s cubic-bezier(0.4, 0, 0.2, 1);
    font-size: 0.875rem;
    letter-spacing: 0.01em;
}

.btn-success {
    background: linear-gradient(135deg, #10b981, #059669) !important;
    border: none !important;
    color: white !important;
    box-shadow: 0 2px 8px rgba(16,185,129,0.2);
}

.btn-success:hover {
    box-shadow: 0 4px 16px rgba(16,185,129,0.3);
    transform: translateY(-1px);
}

.btn-primary {
    background: linear-gradient(135deg, #6366f1, #4f46e5) !important;
    border: none !important;
    box-shadow: 0 2px 8px rgba(99,102,241,0.2);
}

.btn-primary:hover {
    box-shadow: 0 4px 20px rgba(99, 102, 241, 0.45);
    transform: translateY(-1px);
}

.btn-outline-primary {
    color: #6366f1 !important;
    border-color: rgba(99, 102, 241, 0.3) !important;
    background: transparent !important;
}

.btn-outline-primary:hover {
    background: rgba(99, 102, 241, 0.1) !important;
    border-color: #6366f1 !important;
    color: #818cf8 !important;
}

.btn-outline-secondary {
    color: var(--gray-600) !important;
    border-color: var(--gray-300) !important;
    background: transparent !important;
}

.btn-outline-secondary:hover {
    background: rgba(255,255,255,0.04) !important;
    color: var(--gray-800) !important;
}

.btn-outline-danger {
    color: var(--danger) !important;
    border-color: rgba(244, 63, 94, 0.3) !important;
}

.btn-outline-danger:hover {
    background: rgba(244, 63, 94, 0.1) !important;
}

/* ---- Forms ---- */
.form-control, .form-select {
    border-radius: 10px;
    border: 1px solid var(--gray-300);
    padding: 10px 14px;
    background-color: var(--surface) !important;
    color: var(--gray-800) !important;
    transition: all 0.2s ease;
}

.form-control:focus, .form-select:focus {
    border-color: #0d9488;
    box-shadow: 0 0 0 3px rgba(13,148,136,0.1);
    background-color: var(--surface) !important;
}

/* ---- Tables - Modern Dark ---- */
.table {
    margin-bottom: 0;
    color: var(--gray-800);
}

.table th {
    font-weight: 700;
    color: var(--gray-600);
    text-transform: uppercase;
    font-size: 0.7rem;
    letter-spacing: 0.08em;
    padding: 14px 18px;
    border-bottom: 2px solid var(--gray-300) !important;
    background: rgba(255,255,255,0.01);
}

.table td {
    padding: 14px 18px;
    vertical-align: middle;
    border-bottom: 1px solid rgba(255,255,255,0.03) !important;
}

.table-hover tbody tr:hover {
    background-color: rgba(0, 212, 170, 0.04) !important;
}

/* ---- Badges - Glowing ---- */
.badge {
    font-weight: 600;
    padding: 5px 10px;
    border-radius: 6px;
    font-size: 0.75rem;
    letter-spacing: 0.02em;
}

.badge.bg-success, .badge.bg-green {
    background: linear-gradient(135deg, #00d4aa, #00b894) !important;
    color: #0f1117 !important;
    box-shadow: 0 0 8px rgba(0, 212, 170, 0.3);
}

.badge.bg-danger, .badge.bg-red {
    background: linear-gradient(135deg, #f43f5e, #e11d48) !important;
    box-shadow: 0 0 8px rgba(244, 63, 94, 0.3);
}

.badge.bg-warning, .badge.bg-yellow {
    background: linear-gradient(135deg, #fbbf24, #f59e0b) !important;
    color: #0f1117 !important;
    box-shadow: 0 0 8px rgba(251, 191, 36, 0.3);
}

.badge.bg-info, .badge.bg-blue {
    background: linear-gradient(135deg, #38bdf8, #0ea5e9) !important;
    color: #0f1117 !important;
}

/* ---- Navbar ---- */
.navbar {
    background: var(--glass) !important;
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--glass-border) !important;
}

.navbar h5, .navbar .text-muted {
    color: var(--gray-800) !important;
}

/* ---- Charts ---- */
.js-plotly-plot .plotly .modebar {
    background: transparent !important;
}

.js-plotly-plot {
    border-radius: var(--border-radius);
    overflow: hidden;
}

.js-plotly-plot .plot-container {
    background: transparent !important;
}

/* ---- Login Page - Premium ---- */
#login-container {
    min-height: 100vh;
    background: linear-gradient(135deg, #0f1117 0%, #1c2133 50%, #0f1117 100%);
    position: relative;
    overflow: hidden;
}

#login-container::before {
    content: '';
    position: absolute;
    width: 600px;
    height: 600px;
    background: radial-gradient(circle, rgba(0, 212, 170, 0.08) 0%, transparent 70%);
    top: -200px;
    right: -200px;
    pointer-events: none;
}

#login-container::after {
    content: '';
    position: absolute;
    width: 500px;
    height: 500px;
    background: radial-gradient(circle, rgba(99, 102, 241, 0.06) 0%, transparent 70%);
    bottom: -150px;
    left: -150px;
    pointer-events: none;
}

#login-container .card {
    border-radius: 20px !important;
    background: var(--glass) !important;
    border: 1px solid var(--glass-border) !important;
    box-shadow: var(--shadow-lg);
}

/* ---- Animations ---- */
.chat-message {
    animation: fadeIn 0.3s ease;
}

@keyframes fadeIn {
    from { opacity: 0; transform: translateY(10px); }
    to { opacity: 1; transform: translateY(0); }
}

.fade-in { animation: fadeIn 0.3s ease; }

.slide-up { animation: slideUp 0.4s cubic-bezier(0.4, 0, 0.2, 1); }

@keyframes slideUp {
    from { opacity: 0; transform: translateY(24px); }
    to { opacity: 1; transform: translateY(0); }
}

/* ---- Scrollbar ---- */
::-webkit-scrollbar { width: 6px; height: 6px; }
::-webkit-scrollbar-track { background: transparent; }
::-webkit-scrollbar-thumb { background: rgba(255,255,255,0.08); border-radius: 3px; }
::-webkit-scrollbar-thumb:hover { background: rgba(255,255,255,0.15); }

/* ---- Stats Cards - Glow on Hover ---- */
.stat-card {
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    position: relative;
}

.stat-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-md), 0 0 40px rgba(0, 212, 170, 0.06);
}

.stat-card::after {
    content: '';
    position: absolute;
    inset: 0;
    border-radius: inherit;
    background: linear-gradient(135deg, rgba(0, 212, 170, 0.03), rgba(99, 102, 241, 0.03));
    opacity: 0;
    transition: opacity 0.3s ease;
    pointer-events: none;
}

.stat-card:hover::after {
    opacity: 1;
}

/* ==========================================
   MOBILE-RESPONSIVE LAYOUT
   ========================================== */

.mobile-menu-btn {
    display: none;
    position: fixed;
    top: 12px;
    left: 12px;
    z-index: 1100;
    width: 44px;
    height: 44px;
    border-radius: 10px;
    border: 1px solid var(--gray-300);
    background: var(--surface);
    color: var(--gray-700);
    font-size: 1.2rem;
    cursor: pointer;
    align-items: center;
    justify-content: center;
    box-shadow: var(--shadow-sm);
    backdrop-filter: blur(10px);
}

.sidebar-overlay {
    display: none;
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, 0.6);
    backdrop-filter: blur(4px);
    z-index: 999;
}

.sidebar-overlay.active { display: block; }

@media (max-width: 992px) {
    .sidebar { width: 70px !important; }
    .sidebar .nav-link-custom span,
    .sidebar h4,
    .sidebar small,
    .sidebar #user-info-sidebar { display: none !important; }
    .sidebar .nav-link-custom { text-align: center; padding: 10px 8px; }
    .sidebar .nav-link-custom i { margin-right: 0 !important; }
    [style*="margin-left: 240px"] { margin-left: 70px !important; }
    .navbar[style*="margin-left: 240px"] { margin-left: 70px !important; }
}

@media (max-width: 768px) {
    .mobile-menu-btn { display: flex; }
    .sidebar {
        transform: translateX(-100%);
        z-index: 1050 !important;
        width: 260px !important;
    }
    .sidebar.mobile-open { transform: translateX(0); }
    .sidebar.mobile-open .nav-link-custom span,
    .sidebar.mobile-open h4,
    .sidebar.mobile-open small,
    .sidebar.mobile-open #user-info-sidebar { display: inline !important; }
    [style*="margin-left: 240px"],
    [style*="margin-left: 70px"] { margin-left: 0 !important; }
    .navbar[style*="margin-left: 240px"],
    .navbar[style*="margin-left: 70px"] { margin-left: 0 !important; padding-left: 56px; }
    .card-body .row > [class*="col-md"],
    .card-body .row > [class*="col-lg"] { margin-bottom: 12px; }
    .card-body { padding: 14px; }
    .table td, .table th { padding: 10px; font-size: 0.85rem; }
    .navbar .container-fluid { flex-direction: column; align-items: flex-start; gap: 4px; }
}

@media (max-width: 480px) {
    .card-body { padding: 10px; }
    h4 { font-size: 1.1rem; }
    h5 { font-size: 1rem; }
    .badge { font-size: 0.7rem; }
}

/* ---- Spinner ---- */
.spinner-border { color: #00d4aa; }

/* ---- Alerts ---- */
.alert {
    border-radius: var(--border-radius);
    border: none;
    backdrop-filter: blur(10px);
}

.alert-info {
    background: rgba(56, 189, 248, 0.1) !important;
    color: #7dd3fc !important;
    border: 1px solid rgba(56, 189, 248, 0.15) !important;
}

.alert-warning {
    background: rgba(251, 191, 36, 0.1) !important;
    color: #fde68a !important;
    border: 1px solid rgba(251, 191, 36, 0.15) !important;
}

.alert-success {
    background: rgba(0, 212, 170, 0.1) !important;
    color: #6ee7b7 !important;
    border: 1px solid rgba(0, 212, 170, 0.15) !important;
}

.alert-danger {
    background: rgba(244, 63, 94, 0.1) !important;
    color: #fda4af !important;
    border: 1px solid rgba(244, 63, 94, 0.15) !important;
}

/* ---- Dropdown (Dash Select) ---- */
.Select-control {
    border-radius: 10px !important;
    background-color: var(--gray-100) !important;
    border-color: var(--gray-300) !important;
    color: var(--gray-900) !important;
    min-height: 40px !important;
}

.Select-menu-outer {
    background-color: var(--surface) !important;
    border-color: var(--gray-300) !important;
    border-radius: 10px !important;
    box-shadow: var(--shadow-lg) !important;
    max-width: 100% !important;
    width: 100% !important;
}

.Select-option {
    background-color: var(--surface) !important;
    color: var(--gray-800) !important;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
    padding: 11px 14px !important;
    transition: background 0.15s ease;
}

.Select-option:hover,
.Select-option.is-focused {
    background-color: rgba(0, 212, 170, 0.08) !important;
    color: var(--gray-900) !important;
}

.Select-option.is-selected {
    background-color: rgba(0, 212, 170, 0.15) !important;
    color: #00d4aa !important;
    font-weight: 600;
}

.Select-option:hover { white-space: normal; word-wrap: break-word; }

.Select-value-label {
    color: var(--gray-900) !important;
    max-width: calc(100% - 24px);
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.Select-placeholder { color: var(--gray-500) !important; }

.Select-input > input { color: var(--gray-900) !important; }

/* ---- Multi-select pills ---- */
.Select--multi .Select-value {
    background: linear-gradient(135deg, rgba(0, 212, 170, 0.15), rgba(99, 102, 241, 0.1)) !important;
    border-color: rgba(0, 212, 170, 0.2) !important;
    color: #00d4aa !important;
    border-radius: 6px;
    margin: 3px 4px 3px 0;
    max-width: 200px;
    overflow: hidden;
    text-overflow: ellipsis;
}

.Select--multi .Select-value-label {
    color: #00d4aa !important;
    max-width: 180px;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.Select--multi .Select-value-icon {
    border-color: rgba(0, 212, 170, 0.2) !important;
    color: #00d4aa !important;
}

.Select--multi .Select-value-icon:hover {
    background-color: rgba(244, 63, 94, 0.15) !important;
    color: #f43f5e !important;
}

/* ---- Dash Dropdown ---- */
.dash-dropdown { width: 100% !important; }
.dash-dropdown .Select-control { min-height: 40px !important; }
.dash-dropdown .Select-input { width: 100% !important; }
.dash-dropdown .Select-menu { max-height: 300px !important; overflow-y: auto !important; }
.dash-dropdown .Select-option {
    padding: 11px 14px !important;
    line-height: 1.4;
    min-height: 45px;
    display: flex;
    align-items: center;
}

.dash-dropdown .VirtualizedSelectOption {
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

@media (max-width: 768px) {
    .dash-dropdown .Select-value-label { font-size: 0.85rem; }
    .dash-dropdown .Select-option { font-size: 0.85rem; padding: 9px 12px !important; }
    .Select--multi .Select-value { max-width: 120px; }
    .Select--multi .Select-value-label { max-width: 100px; font-size: 0.8rem; }
}

/* ---- Analytics dropdowns ---- */
#analytics-route-selector, #analytics-pair-selector { width: 100% !important; }
#analytics-route-selector .Select-control,
#analytics-pair-selector .Select-control {
    min-height: 60px !important;
    height: auto !important;
    padding: 4px 8px;
}

.analytics-route-dropdown .Select-option,
.analytics-pair-dropdown .Select-option {
    min-height: 50px !important;
    height: auto !important;
    padding: 10px 12px !important;
    white-space: normal !important;
    word-wrap: break-word !important;
    line-height: 1.4 !important;
    display: flex !important;
    align-items: center !important;
}

.analytics-route-dropdown .Select-menu,
.analytics-pair-dropdown .Select-menu { max-height: 400px !important; }

.analytics-route-dropdown .Select-menu-outer,
.analytics-pair-dropdown .Select-menu-outer { max-height: 400px !important; }

.analytics-route-dropdown .Select--multi .Select-value,
.analytics-pair-dropdown .Select--multi .Select-value {
    max-width: none !important;
    white-space: normal !important;
    height: auto !important;
    line-height: 1.3 !important;
    padding: 4px 8px !important;
    margin: 3px 4px 3px 0 !important;
}

.analytics-route-dropdown .Select--multi .Select-value-label,
.analytics-pair-dropdown .Select--multi .Select-value-label {
    white-space: normal !important;
    word-break: break-word !important;
    font-size: 0.85rem !important;
}

/* ---- Clickable route rows ---- */
.route-row-clickable {
    cursor: pointer;
    transition: all 0.2s ease;
}

.route-row-clickable:hover {
    background-color: rgba(0, 212, 170, 0.06) !important;
}

.route-row-clickable:hover td:first-child {
    color: #00d4aa;
}

.route-link { display: block; transition: color 0.15s ease; }
.route-link:hover { color: #00d4aa !important; }
.route-link:hover strong { text-decoration: underline; }

/* ---- Loading state ---- */
.Select.is-loading .Select-loading { border-color: #00d4aa transparent transparent; }

._dash-loading {
    opacity: 0.4;
    transition: opacity 0.2s ease;
}

/* ---- Text helpers ---- */
.text-muted { color: var(--gray-500) !important; }
.text-success { color: #00d4aa !important; }
.text-danger { color: #f43f5e !important; }
.text-warning { color: #fbbf24 !important; }
.text-info { color: #38bdf8 !important; }
.text-primary { color: #6366f1 !important; }

/* ---- Border helpers ---- */
.border-bottom { border-bottom-color: var(--glass-border) !important; }

/* ---- Theme Toggle ---- */
.theme-toggle-btn {
    background: rgba(255,255,255,0.04);
    border: 1px solid var(--gray-300);
    border-radius: 50%;
    width: 38px;
    height: 38px;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    font-size: 1rem;
    color: var(--gray-600);
    transition: all 0.2s ease;
}

.theme-toggle-btn:hover {
    background-color: rgba(255,255,255,0.08);
    color: #fbbf24;
    border-color: rgba(251, 191, 36, 0.3);
}

/* ---- Global Waze Alerts ---- */
.global-alert-container {
    position: fixed;
    top: 80px;
    right: 20px;
    z-index: 9999;
    max-width: 380px;
    pointer-events: auto;
}

.global-alert-toast {
    pointer-events: auto;
    transition: opacity 0.3s ease, transform 0.3s ease;
    animation: slideInRight 0.3s ease-out, fadeOutToast 0.5s ease-in 19.5s forwards;
    background: var(--glass) !important;
    border: 1px solid var(--glass-border) !important;
    backdrop-filter: blur(20px);
}

.global-alert-toast:hover {
    transform: translateX(-4px);
    box-shadow: 0 6px 24px rgba(0,0,0,0.4) !important;
}

.global-alert-toast .btn-link:hover { color: #f43f5e !important; }

@keyframes fadeOutToast {
    from { opacity: 1; }
    to { opacity: 0; }
}

@keyframes slideInRight {
    from { opacity: 0; transform: translateX(100%); }
    to { opacity: 1; transform: translateX(0); }
}

/* ---- Slider Styling ---- */
.rc-slider-tooltip { display: none !important; }

.dash-slider input[type="number"],
.rc-slider ~ input[type="number"],
.rc-slider-container input[type="number"],
div[class*="slider"] > input[type="number"] { display: none !important; }

#time-range-slider .rc-slider-mark-text {
    font-size: 0.8rem !important;
    white-space: nowrap;
    color: var(--gray-500);
}

#time-range-slider .rc-slider-mark-text-active {
    color: #00d4aa !important;
    font-weight: 600;
}

#time-range-slider .rc-slider-rail { background-color: var(--gray-300) !important; }
#time-range-slider .rc-slider-dot-active { border-color: #00d4aa !important; }
#time-range-slider .rc-slider-handle { border-color: #00d4aa !important; background: #00d4aa !important; box-shadow: 0 0 8px rgba(0, 212, 170, 0.4) !important; }
#time-range-slider .rc-slider-track { background-color: #00d4aa !important; }
#time-range-slider .rc-slider-dot { background-color: var(--gray-200); border-color: var(--gray-400); }

/* ---- Date Range Picker ---- */
#custom-date-range { font-size: 0.75rem; }
#custom-date-range .DateInput { width: 80px; }
#custom-date-range .DateInput_input {
    font-size: 0.75rem;
    padding: 3px 6px;
    line-height: 1.2;
    background-color: var(--gray-100);
    color: var(--gray-900);
    border-color: var(--gray-300);
}
#custom-date-range .DateRangePickerInput {
    background-color: var(--gray-100);
    border-color: var(--gray-300);
}
#custom-date-range .DateRangePickerInput_arrow_svg { fill: var(--gray-500); }

.form-switch { min-width: fit-content; }

/* ==========================================
   AI CHAT WIDGET - Premium Glassmorphism
   ========================================== */

.ai-chat-fab {
    position: fixed;
    bottom: 24px;
    right: 24px;
    width: 58px;
    height: 58px;
    border-radius: 50%;
    background: linear-gradient(135deg, #00d4aa, #00b894);
    color: #0f1117;
    border: none;
    cursor: pointer;
    box-shadow: 0 4px 20px rgba(0, 212, 170, 0.4);
    z-index: 9999;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.2s cubic-bezier(0.4, 0, 0.2, 1);
}

.ai-chat-fab:hover {
    transform: scale(1.1);
    box-shadow: 0 6px 28px rgba(0, 212, 170, 0.55);
}

.ai-chat-popup {
    position: fixed;
    bottom: 90px;
    right: 24px;
    width: 380px;
    max-height: 540px;
    background: var(--glass);
    backdrop-filter: blur(24px);
    -webkit-backdrop-filter: blur(24px);
    border-radius: 16px;
    box-shadow: var(--shadow-lg);
    z-index: 9998;
    display: flex;
    flex-direction: column;
    overflow: hidden;
    border: 1px solid var(--glass-border);
}

.ai-chat-popup-header {
    background: linear-gradient(135deg, rgba(0, 212, 170, 0.1), rgba(99, 102, 241, 0.1));
    color: var(--gray-900);
    padding: 12px 16px;
    cursor: move;
    display: flex;
    align-items: center;
    justify-content: space-between;
    user-select: none;
    flex-shrink: 0;
    border-bottom: 1px solid var(--glass-border);
}

.ai-chat-popup-messages {
    flex: 1;
    overflow-y: auto;
    padding: 14px;
    max-height: 340px;
    min-height: 200px;
    color: var(--gray-800);
}

.ai-chat-popup-quick {
    padding: 8px 14px;
    border-top: 1px solid var(--glass-border);
    flex-shrink: 0;
}

.ai-chat-popup-footer {
    padding: 10px 14px;
    border-top: 1px solid var(--glass-border);
    background: rgba(0,0,0,0.15);
    flex-shrink: 0;
}

/* ---- Dashboard Edit Mode ---- */
.widget-edit-mode {
    position: relative;
    border: 2px dashed rgba(0, 212, 170, 0.4) !important;
    border-radius: 12px;
    transition: all 0.2s ease;
}

.widget-edit-mode:hover {
    border-color: #00d4aa !important;
    box-shadow: 0 0 20px rgba(0, 212, 170, 0.15);
}

.widget-edit-mode .resize-handle {
    position: absolute;
    bottom: 4px;
    right: 4px;
    width: 20px;
    height: 20px;
    background: linear-gradient(135deg, transparent 50%, #00d4aa 50%);
    cursor: se-resize;
    border-radius: 0 0 4px 0;
    opacity: 0.8;
}

.widget-edit-mode .drag-handle {
    position: absolute;
    top: 4px;
    left: 4px;
    padding: 4px 8px;
    background: linear-gradient(135deg, #00d4aa, #6366f1);
    color: #0f1117;
    font-size: 10px;
    font-weight: 700;
    border-radius: 6px;
    cursor: move;
    z-index: 10;
}

.widget-normal-mode { transition: all 0.2s ease; }

.edit-mode-banner {
    background: linear-gradient(90deg, rgba(0, 212, 170, 0.1), rgba(99, 102, 241, 0.1));
    color: var(--gray-900);
    padding: 10px 18px;
    border-radius: 12px;
    margin-bottom: 16px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    border: 1px solid rgba(0, 212, 170, 0.15);
}

/* ---- Pairs table ---- */
.pairs-clickable-row { cursor: pointer; transition: background-color 0.15s; }
.pairs-clickable-row:hover { background-color: rgba(0, 212, 170, 0.06) !important; }

/* ---- Sensor issue card ---- */
.sensor-issue-card { transition: all 0.2s cubic-bezier(0.4, 0, 0.2, 1); }
.sensor-issue-card:hover {
    box-shadow: 0 4px 16px rgba(0,0,0,0.3) !important;
    transform: translateY(-2px);
}

/* ---- Print ---- */
@media print {
    .sidebar, .navbar, .btn { display: none !important; }
    [style*="margin-left"] { margin-left: 0 !important; }
    body { background: white; color: black; }
}

/* ==========================================
   DARK MODE OVERRIDES
   Toggle via data-theme="dark" on <html>
   ========================================== */

[data-theme="dark"] {
    --light: #0f1117;
    --surface: #1c2133;
    --surface-hover: #232940;
    --glass: rgba(28, 33, 51, 0.85);
    --glass-border: rgba(255,255,255,0.06);
    --gray-100: #161a25;
    --gray-200: #1c2133;
    --gray-300: #2a3148;
    --gray-400: #3d4663;
    --gray-500: #5a6478;
    --gray-600: #8b95a8;
    --gray-700: #b0b8c9;
    --gray-800: #d4d9e3;
    --gray-900: #f0f2f5;
    --shadow-sm: 0 2px 8px rgba(0,0,0,0.2);
    --shadow: 0 4px 24px rgba(0,0,0,0.3);
    --shadow-md: 0 8px 32px rgba(0,0,0,0.35);
    --shadow-lg: 0 12px 48px rgba(0,0,0,0.4);
}

[data-theme="dark"] body, [data-theme="dark"] {
    background-color: #0f1117;
    color: #d4d9e3;
}

[data-theme="dark"] .sidebar {
    background: linear-gradient(180deg, #111827, #0d1017) !important;
    border-right-color: rgba(255,255,255,0.06) !important;
}

[data-theme="dark"] .sidebar .nav-link-custom { color: #8b95a8; }
[data-theme="dark"] .sidebar .nav-link-custom:hover { background-color: rgba(255,255,255,0.04); color: #f0f2f5; }
[data-theme="dark"] .sidebar .nav-link-custom.active { background: rgba(13,148,136,0.12) !important; color: #0d9488 !important; }

[data-theme="dark"] .card { background-color: #1c2133 !important; color: #d4d9e3; border-color: rgba(255,255,255,0.06) !important; }
[data-theme="dark"] .card-header { background-color: rgba(255,255,255,0.02) !important; border-bottom-color: rgba(255,255,255,0.06) !important; }
[data-theme="dark"] .navbar { background-color: rgba(28,33,51,0.85) !important; border-bottom-color: rgba(255,255,255,0.06) !important; }
[data-theme="dark"] .navbar h5 { color: #d4d9e3 !important; }

[data-theme="dark"] .form-control, [data-theme="dark"] .form-select {
    background-color: #161a25 !important; border-color: #2a3148 !important; color: #f0f2f5 !important;
}
[data-theme="dark"] .form-control:focus, [data-theme="dark"] .form-select:focus {
    background-color: #1c2133 !important; border-color: #0d9488 !important; color: #f0f2f5 !important;
}

[data-theme="dark"] .table { color: #d4d9e3; }
[data-theme="dark"] .table th { color: #5a6478; border-bottom-color: #2a3148 !important; }
[data-theme="dark"] .table td { border-bottom-color: rgba(255,255,255,0.04) !important; }
[data-theme="dark"] .table-hover tbody tr:hover { background-color: rgba(13,148,136,0.06) !important; }
[data-theme="dark"] .text-muted { color: #5a6478 !important; }
[data-theme="dark"] .border-bottom { border-bottom-color: rgba(255,255,255,0.06) !important; }

[data-theme="dark"] .Select-control { background-color: #161a25 !important; border-color: #2a3148 !important; color: #f0f2f5 !important; }
[data-theme="dark"] .Select-menu-outer { background-color: #1c2133 !important; border-color: #2a3148 !important; }
[data-theme="dark"] .Select-option { background-color: #1c2133 !important; color: #d4d9e3 !important; }
[data-theme="dark"] .Select-option:hover, [data-theme="dark"] .Select-option.is-focused { background-color: rgba(13,148,136,0.08) !important; }
[data-theme="dark"] .Select-value-label { color: #f0f2f5 !important; }
[data-theme="dark"] .Select-placeholder { color: #5a6478 !important; }

[data-theme="dark"] .mobile-menu-btn { background: #1c2133; border-color: #2a3148; color: #8b95a8; }
[data-theme="dark"] .btn-outline-secondary { color: #8b95a8; border-color: #2a3148; }

[data-theme="dark"] .alert-info { background-color: rgba(14,165,233,0.1) !important; color: #7dd3fc !important; border-color: rgba(14,165,233,0.15) !important; }
[data-theme="dark"] .alert-warning { background-color: rgba(245,158,11,0.1) !important; color: #fde68a !important; border-color: rgba(245,158,11,0.15) !important; }
[data-theme="dark"] .alert-success { background-color: rgba(16,185,129,0.1) !important; color: #6ee7b7 !important; border-color: rgba(16,185,129,0.15) !important; }

[data-theme="dark"] ::-webkit-scrollbar-track { background: transparent; }
[data-theme="dark"] ::-webkit-scrollbar-thumb { background: rgba(255,255,255,0.08); }
[data-theme="dark"] ::-webkit-scrollbar-thumb:hover { background: rgba(255,255,255,0.15); }

[data-theme="dark"] .js-plotly-plot .plot-container { background: transparent !important; }

[data-theme="dark"] .theme-toggle-btn { border-color: #2a3148; color: #fbbf24; }
[data-theme="dark"] .theme-toggle-btn:hover { background-color: rgba(251,191,36,0.1); }

[data-theme="dark"] .route-row-clickable:hover { background-color: rgba(13,148,136,0.06) !important; }
[data-theme="dark"] .pairs-clickable-row:hover { background-color: rgba(13,148,136,0.06) !important; }

[data-theme="dark"] .global-alert-toast { background-color: #1c2133 !important; color: #d4d9e3; }
[data-theme="dark"] .ai-chat-popup { background: #1c2133; border-color: rgba(255,255,255,0.06); }
[data-theme="dark"] .ai-chat-popup-footer { background: #0f1117; border-color: rgba(255,255,255,0.06); }
[data-theme="dark"] .ai-chat-popup-quick { border-color: rgba(255,255,255,0.06); }

/* Ensure Select components fill width */
.Select { width: 100% !important; }