:root {
            --primary: #6366f1;
            --primary-dark: #4f46e5;
            --success: #10B981;
            --warning: #F59E0B;
            --danger: #EF4444;
            --bg-dark: #0f172a;
            --bg-card: #1e293b;
            --bg-card-light: #f8fafc;
            --text-primary: #1e293b;
            --text-secondary: #64748b;
            --text-muted: #94a3b8;
            --border: #e2e8f0;
            --bg-body: #f1f5f9;
            --bg-sidebar: #ffffff;
            --bg-input: #f8fafc;
            --shadow: rgba(0,0,0,0.1);
        }

        /* Dark theme */
        [data-theme="dark"] {
            --bg-dark: #0f172a;
            --bg-card: #1e293b;
            --bg-card-light: #1e293b;
            --bg-body: #0f172a;
            --bg-sidebar: #1e293b;
            --bg-input: #334155;
            --text-primary: #f1f5f9;
            --text-secondary: #94a3b8;
            --text-muted: #64748b;
            --border: #334155;
            --shadow: rgba(0,0,0,0.3);
        }

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

        [data-theme="dark"] .zoom-slider {
            background: var(--border);
        }

        [data-theme="dark"] .zoom-slider::-webkit-slider-thumb {
            background: var(--primary);
            border-color: var(--bg-sidebar);
        }

        [data-theme="dark"] .zoom-slider::-moz-range-thumb {
            background: var(--primary);
            border-color: var(--bg-sidebar);
        }

        * {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }

        body {
            font-family: 'Inter', sans-serif;
            background: var(--bg-body);
            color: var(--text-primary);
            overflow: hidden;
            height: 100vh;
        }

        .app-container {
            display: flex;
            height: 100vh;
        }

        .main-content {
            flex: 1;
            display: flex;
            flex-direction: column;
            position: relative;
        }

        /* Ad Sidebar */
        .ad-sidebar {
            position: absolute;
            right: 0;
            top: 0;
            height: 100%;
            width: 300px; /* Default width, will be overridden by settings */
            background: var(--bg-sidebar);
            display: flex;
            flex-direction: column;
            border-left: 1px solid var(--border);
            z-index: 1000;
            overflow-y: auto;
            transform: translateX(100%);
            transition: transform 0.5s ease;
        }

        .ad-sidebar-header {
            padding: 1rem;
            border-bottom: 1px solid var(--border);
            text-align: center;
            font-weight: 600;
            color: var(--text-primary);
            font-size: 0.9rem;
            display: flex;
            justify-content: space-between;
            align-items: center;
        }

        .collapse-btn {
            background: none;
            border: none;
            color: var(--text-secondary);
            cursor: pointer;
            padding: 0.25rem;
            border-radius: 4px;
            transition: all 0.2s ease;
        }

        .collapse-btn:hover {
            background: var(--border);
            color: var(--text-primary);
        }

        .ad-sidebar.collapsed .collapse-btn {
            margin: 0 auto;
        }

        .ad-expand-btn {
            position: absolute;
            right: 0;
            top: 50%;
            transform: translateY(-50%);
            background: var(--bg-sidebar);
            border: 1px solid var(--border);
            border-right: none;
            border-radius: 8px 0 0 8px;
            color: var(--text-secondary);
            width: 40px;
            height: 40px;
            display: flex;
            align-items: center;
            justify-content: center;
            cursor: pointer;
            z-index: 1001;
            transition: all 0.2s ease;
        }

        .ad-expand-btn:hover {
            background: var(--bg-card);
            color: var(--text-primary);
        }

        .ad-container {
            padding: 1rem;
            display: flex;
            flex-direction: column;
            gap: 1rem;
        }

        .ad-block {
            background: var(--bg-card);
            border: 1px solid var(--border);
            border-radius: 12px;
            padding: 1rem;
            transition: all 0.2s ease;
            cursor: pointer;
        }

        .ad-block:hover {
            border-color: var(--primary);
            transform: translateY(-2px);
            box-shadow: 0 4px 12px rgba(0,0,0,0.1);
        }

        .ad-block.premium {
            border-color: #f59e0b;
            background: linear-gradient(135deg, rgba(245,158,11,0.05), rgba(245,158,11,0.02));
        }

        .ad-block.cta-block {
            border-color: #667eea;
            background: linear-gradient(135deg, rgba(102,126,234,0.05), rgba(118,75,162,0.02));
            animation: pulse 2s infinite;
        }

        .ad-block.cta-block:hover {
            transform: translateY(-2px) scale(1.02);
            box-shadow: 0 8px 25px rgba(102,126,234,0.3);
        }

        @keyframes pulse {
            0% { box-shadow: 0 0 0 0 rgba(102,126,234,0.4); }
            70% { box-shadow: 0 0 0 10px rgba(102,126,234,0); }
            100% { box-shadow: 0 0 0 0 rgba(102,126,234,0); }
        }

        .ad-image {
            width: 100%;
            height: 120px;
            background: var(--bg-sidebar);
            border-radius: 8px;
            display: flex;
            align-items: center;
            justify-content: center;
            margin-bottom: 0.75rem;
            overflow: hidden;
        }

        .ad-image img {
            width: 100%;
            height: 100%;
            object-fit: cover;
        }

        .ad-content h4 {
            font-size: 0.9rem;
            font-weight: 600;
            color: var(--text-primary);
            margin-bottom: 0.25rem;
        }

        .ad-content p {
            font-size: 0.8rem;
            color: var(--text-secondary);
            line-height: 1.4;
            margin-bottom: 0.5rem;
        }

        .ad-cta {
            font-size: 0.75rem;
            color: var(--primary);
            font-weight: 600;
            text-decoration: none;
            display: inline-flex;
            align-items: center;
            gap: 0.25rem;
        }

        .ad-cta:hover {
            text-decoration: underline;
        }

        /* Sidebar */
        .sidebar {
            width: 360px;
            background: var(--bg-sidebar);
            display: flex;
            flex-direction: column;
            border-right: 1px solid var(--border);
            z-index: 1000;
            transition: transform 0.3s ease;
            flex-shrink: 0;
        }

        .sidebar-header {
            padding: 1rem;
            border-bottom: 1px solid var(--border);
        }

        .logo {
            display: flex;
            align-items: center;
            justify-content: center; /* center horizontally */
            gap: 0.5rem;
            margin-bottom: 1rem;
        }

        .logo img {
            width: 100px;
            height: auto;
            object-fit: contain;
        }

        .logo h1 {
            font-size: 1.5rem;
            font-weight: 700;
            background: linear-gradient(45deg, var(--primary), var(--primary-dark));
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
            margin: 0;
        }

        .status-bar {
            display: flex;
            align-items: center;
            gap: 0.5rem;
            font-size: 0.75rem;
            color: var(--text-secondary);
        }

        .status-dot {
            width: 8px;
            height: 8px;
            border-radius: 50%;
            background: var(--text-muted);
        }

        .status-dot.live {
            background: var(--success);
            animation: pulse 2s infinite;
        }

        @keyframes pulse {
            0%, 100% { opacity: 1; }
            50% { opacity: 0.5; }
        }

        /* Tabs */
        .tabs {
            display: flex;
            border-bottom: 1px solid var(--border);
        }

        .tab {
            flex: 1;
            padding: 0.75rem;
            text-align: center;
            font-size: 0.8rem;
            font-weight: 500;
            color: var(--text-secondary);
            cursor: pointer;
            border-bottom: 2px solid transparent;
            transition: all 0.2s;
        }

        .tab:hover {
            color: var(--primary);
            background: rgba(99, 102, 241, 0.05);
        }

        .tab.active {
            color: var(--primary);
            border-bottom-color: var(--primary);
        }

        /* Search Box */
        .search-box {
            position: relative;
            padding: 0.75rem 1rem;
            border-bottom: 1px solid var(--border);
        }

        .search-box i.fa-search {
            position: absolute;
            left: 1.75rem;
            top: 50%;
            transform: translateY(-50%);
            color: var(--text-muted);
            font-size: 0.875rem;
            pointer-events: none;
        }

        .search-box input {
            width: 100%;
            padding: 0.625rem 2.75rem 0.625rem 2.5rem;
            border: 1px solid var(--border);
            border-radius: 8px;
            font-size: 0.875rem;
            background: var(--bg-input);
            color: var(--text-primary);
            box-sizing: border-box;
        }

        .search-box input:focus {
            outline: none;
            border-color: var(--primary);
            box-shadow: 0 0 0 3px rgba(99, 102, 241, 0.1);
        }

        .search-clear {
            position: absolute;
            right: 1.2rem;
            top: 50%;
            transform: translateY(-50%);
            background: none;
            border: none;
            color: var(--text-muted);
            cursor: pointer;
            padding: 0.5rem 0.75rem;
            font-size: 0.875rem;
            transition: color 0.2s ease, background-color 0.2s ease;
            border-radius: 4px;
            display: flex;
            align-items: center;
            justify-content: center;
            z-index: 10;
            height: 32px;
            width: 32px;
            flex-shrink: 0;
        }

        .search-clear-hidden {
            display: none !important;
        }

        .search-clear:hover {
            color: var(--text-primary);
            background-color: rgba(99, 102, 241, 0.1);
        }

        .search-clear:active {
            background-color: rgba(99, 102, 241, 0.2);
        }

        .search-status {
            position: absolute;
            right: 2.5rem;
            top: 50%;
            transform: translateY(-50%);
            font-size: 0.65rem;
            color: var(--primary);
            font-weight: 600;
            display: none;
            align-items: center;
            gap: 0.35rem;
            white-space: nowrap;
            z-index: 5;
        }

        .search-status.active {
            display: flex;
        }

        .search-status i {
            position: static;
            transform: none;
            font-size: 0.7rem;
            animation: spin 1s linear infinite;
        }

        @keyframes spin {
            0% { transform: rotate(0deg); }
            100% { transform: rotate(360deg); }
        }

        /* Filter Buttons */
        .filter-buttons {
            display: flex;
            gap: 0.5rem;
            padding: 0.75rem 1rem;
            border-bottom: 1px solid var(--border);
        }

        .filter-btn {
            flex: 1;
            padding: 0.5rem;
            border: 1px solid var(--border);
            border-radius: 6px;
            background: var(--bg-sidebar);
            color: var(--text-secondary);
            font-size: 0.75rem;
            font-weight: 500;
            cursor: pointer;
            transition: all 0.2s;
        }

        .filter-btn:hover {
            border-color: var(--primary);
            color: var(--primary);
        }

        .filter-btn.active {
            background: var(--primary);
            border-color: var(--primary);
            color: white;
        }

        /* Stats Grid */
        .stats-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 0.5rem;
            padding: 0.75rem 1rem;
            border-bottom: 1px solid var(--border);
        }

        .stat-item {
            text-align: center;
            padding: 0.5rem;
            background: var(--bg-card-light);
            border-radius: 8px;
        }

        .stat-value {
            font-size: 1.125rem;
            font-weight: 700;
            color: var(--primary);
        }

        .stat-label {
            font-size: 0.625rem;
            color: var(--text-muted);
            text-transform: uppercase;
        }

        /* Live Section - must be flex child for scroll */
        #liveSection {
            flex: 1;
            display: flex;
            flex-direction: column;
            min-height: 0;
            overflow: hidden;
        }

        /* Flight List */
        .flight-list {
            flex: 1;
            overflow-y: auto;
            padding: 0.5rem;
            min-height: 0;
        }

        .search-no-results {
            display: flex;
            flex-direction: column;
            align-items: center;
            justify-content: center;
            padding: 2rem 1rem;
            color: var(--text-secondary);
            text-align: center;
            gap: 0.75rem;
            height: 100%;
        }

        .search-no-results i {
            font-size: 2rem;
            color: var(--text-muted);
            opacity: 0.7;
        }

        .search-no-results p {
            font-weight: 500;
            color: var(--text-primary);
            margin: 0.5rem 0;
        }

        .search-no-results small {
            font-size: 0.75rem;
            color: var(--text-muted);
            display: block;
        }

        .flight-card {
            background: var(--bg-sidebar);
            border: 1px solid var(--border);
            border-radius: 10px;
            padding: 0.75rem;
            margin-bottom: 0.5rem;
            cursor: pointer;
            transition: all 0.2s;
        }

        .flight-card:hover {
            border-color: var(--primary);
            box-shadow: 0 4px 12px rgba(99, 102, 241, 0.15);
        }

        .flight-card.selected {
            border-color: var(--selected-color, #10B981);
            background: color-mix(in srgb, var(--selected-color, #10B981) 8%, transparent);
            box-shadow: 0 0 0 2px color-mix(in srgb, var(--selected-color, #10B981) 20%, transparent), 0 4px 12px color-mix(in srgb, var(--selected-color, #10B981) 15%, transparent);
            position: relative;
        }
        .flight-card.selected::before {
            content: '\f058';
            font-family: 'Font Awesome 6 Free';
            font-weight: 900;
            position: absolute;
            top: 0.5rem;
            right: 0.5rem;
            color: var(--selected-color, #10B981);
            font-size: 0.75rem;
        }

        /* Selected marker pulse */
        @keyframes markerPulse {
            0% { box-shadow: 0 0 0 0 color-mix(in srgb, var(--selected-color, #10B981) 50%, transparent); }
            70% { box-shadow: 0 0 0 12px color-mix(in srgb, var(--selected-color, #10B981) 0%, transparent); }
            100% { box-shadow: 0 0 0 0 color-mix(in srgb, var(--selected-color, #10B981) 0%, transparent); }
        }
        .plane-marker-icon.selected-marker {
            animation: markerPulse 2s ease-out infinite;
            border-radius: 50%;
            z-index: 1000 !important;
        }

        .flight-header {
            display: flex;
            justify-content: space-between;
            align-items: center;
            margin-bottom: 0.5rem;
        }

        .flight-number {
            font-weight: 700;
            color: var(--primary);
            font-size: 0.95rem;
        }

        .flight-airline {
            font-size: 0.7rem;
            color: var(--text-secondary);
        }

        .flight-route {
            display: flex;
            align-items: center;
            gap: 0.5rem;
            margin-bottom: 0.5rem;
        }

        .route-point {
            flex: 1;
        }

        .route-point .city {
            font-weight: 600;
            font-size: 0.85rem;
            color: var(--text-primary);
        }

        .route-point .code {
            font-size: 0.65rem;
            color: var(--text-muted);
        }

        .route-line {
            flex: 0 0 40px;
            text-align: center;
            color: var(--primary);
        }

        .flight-stats {
            display: flex;
            gap: 0.75rem;
            font-size: 0.7rem;
            color: var(--text-secondary);
        }

        .flight-stat i {
            margin-right: 0.25rem;
            color: var(--primary);
        }

        /* Map Container */
        .map-container {
            flex: 1;
            position: relative;
        }

        #map {
            width: 100%;
            height: 100%;
        }

        /* Map Controls */
        .map-controls {
            position: absolute;
            top: 1rem;
            left: 1rem;
            z-index: 1000;
            display: flex;
            gap: 0.5rem;
        }

        .map-btn {
            padding: 0.625rem 1rem;
            background: white;
            border: 1px solid var(--border);
            border-radius: 8px;
            font-size: 0.8rem;
            font-weight: 500;
            color: var(--text-primary);
            cursor: pointer;
            display: flex;
            align-items: center;
            gap: 0.5rem;
            transition: all 0.2s;
            box-shadow: 0 2px 8px rgba(0,0,0,0.1);
        }

        .map-btn:hover {
            border-color: var(--primary);
            color: var(--primary);
        }

        .map-btn i {
            font-size: 0.9rem;
        }

        /* Layer Selector */
        .layer-selector {
            position: relative;
        }

        .layer-dropdown {
            position: absolute;
            top: 100%;
            left: 0;
            margin-top: 0.5rem;
            background: white;
            border: 1px solid var(--border);
            border-radius: 8px;
            box-shadow: 0 4px 20px rgba(0,0,0,0.15);
            display: none;
            min-width: 180px;
            overflow: hidden;
        }

        .layer-dropdown.active {
            display: block;
        }

        .layer-option {
            padding: 0.625rem 1rem;
            font-size: 0.8rem;
            color: var(--text-primary);
            cursor: pointer;
            display: flex;
            align-items: center;
            gap: 0.5rem;
            transition: all 0.2s;
        }

        .layer-option:hover {
            background: var(--bg-card-light);
        }

        .layer-option.active {
            background: var(--primary);
            color: white;
        }

        .layer-option i {
            width: 16px;
        }

        /* Zoom Slider */
        .zoom-slider-container {
            display: flex;
            align-items: center;
            gap: 0.5rem;
            padding: 0.625rem 1rem;
            background: white;
            border: 1px solid var(--border);
            border-radius: 8px;
            box-shadow: 0 2px 8px rgba(0,0,0,0.1);
            transition: all 0.2s;
        }

        .zoom-slider-container:hover {
            border-color: var(--primary);
        }

        .zoom-icon {
            font-size: 0.9rem;
            color: var(--text-secondary);
            cursor: pointer;
            transition: color 0.2s ease;
        }

        .zoom-icon:hover {
            color: var(--accent-primary);
        }

        .zoom-slider {
            width: 120px;
            height: 4px;
            border-radius: 2px;
            background: var(--border);
            outline: none;
            -webkit-appearance: none;
            appearance: none;
        }

        .zoom-slider::-webkit-slider-thumb {
            -webkit-appearance: none;
            appearance: none;
            width: 16px;
            height: 16px;
            border-radius: 50%;
            background: var(--primary);
            cursor: pointer;
            border: 2px solid white;
            box-shadow: 0 2px 4px rgba(0,0,0,0.2);
        }

        .zoom-slider::-moz-range-thumb {
            width: 16px;
            height: 16px;
            border-radius: 50%;
            background: var(--primary);
            cursor: pointer;
            border: 2px solid white;
            box-shadow: 0 2px 4px rgba(0,0,0,0.2);
        }

        /* Map Legend */
        .map-legend {
            background: var(--bg-sidebar);
            border: 1px solid var(--border);
            border-radius: 8px;
            padding: 0.75rem;
            font-size: 0.8rem;
            box-shadow: 0 2px 8px rgba(0,0,0,0.1);
            min-width: 120px;
        }

        .legend-title {
            font-weight: 600;
            margin-bottom: 0.5rem;
            color: var(--text-primary);
            text-align: center;
        }

        .legend-item {
            display: flex;
            align-items: center;
            gap: 0.5rem;
            margin-bottom: 0.25rem;
        }

        .legend-item:last-child {
            margin-bottom: 0;
        }

        .legend-color {
            width: 12px;
            height: 12px;
            border-radius: 50%;
            flex-shrink: 0;
        }

        .legend-item span {
            color: var(--text-secondary);
            font-size: 0.75rem;
        }

        /* Weather Legend */
        .weather-legend .temp-gradient {
            display: flex;
            flex-direction: column;
            gap: 0.25rem;
        }

        .temp-bar {
            height: 8px;
            border-radius: 4px;
            overflow: hidden;
        }

        .temp-color {
            width: 100%;
            height: 100%;
        }

        .temp-labels {
            display: flex;
            justify-content: space-between;
            font-size: 0.7rem;
            color: var(--text-secondary);
        }

        /* Info Panel */
        .info-panel {
            position: absolute;
            bottom: 1rem;
            left: 1rem;
            background: var(--bg-sidebar);
            border-radius: 10px;
            padding: 0.75rem 1rem;
            font-size: 0.75rem;
            color: var(--text-secondary);
            box-shadow: 0 4px 20px var(--shadow);
            z-index: 1000;
            display: flex;
            align-items: center;
            gap: 1rem;
        }

        .info-item {
            display: flex;
            align-items: center;
            gap: 0.5rem;
        }

        .info-item i {
            color: var(--primary);
        }

        /* Flight Popup */
        .popup-overlay {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            bottom: 0;
            background: rgba(0, 0, 0, 0.5);
            z-index: 1000;
            display: none;
            align-items: center;
            justify-content: center;
            transform: translateX(100%);
            transition: transform 0.5s ease;
        }

        .popup-overlay.active {
            display: flex;
            transform: translateX(0);
        }

        .flight-popup {
            background: var(--bg-sidebar);
            border-radius: 16px;
            width: 90%;
            max-width: 480px;
            max-height: 90vh;
            overflow-y: auto;
            box-shadow: 0 20px 60px rgba(0,0,0,0.3);
            transform: scale(0.9);
            opacity: 1;
            transition: all 0.3s;
        }

        .flight-popup.active {
            transform: scale(1);
            opacity: 1;
        }

        .flight-popup.big {
            max-width: 600px;
        }

        .popup-header {
            padding: 1.25rem;
            background: linear-gradient(135deg, var(--primary), var(--primary-dark));
            color: white;
            position: relative;
        }

        .popup-close {
            position: absolute;
            top: 1rem;
            right: 1rem;
            width: 32px;
            height: 32px;
            border-radius: 50%;
            background: rgba(255,255,255,0.2);
            border: none;
            color: white;
            cursor: pointer;
            display: flex;
            align-items: center;
            justify-content: center;
            transition: all 0.2s;
        }

        .popup-close:hover {
            background: rgba(255,255,255,0.3);
        }

        .popup-flight-number {
            font-size: 1.5rem;
            font-weight: 700;
            margin-bottom: 0.25rem;
        }

        .popup-airline-badge {
            display: inline-block;
            padding: 0.25rem 0.75rem;
            background: rgba(255,255,255,0.2);
            border-radius: 20px;
            font-size: 0.75rem;
        }

        .popup-refresh {
            position: absolute;
            bottom: 1rem;
            right: 1rem;
            font-size: 0.7rem;
            opacity: 0.8;
        }

        .popup-body {
            padding: 1.25rem;
        }

        .popup-section {
            margin-bottom: 1.25rem;
        }

        .section-header {
            display: flex;
            align-items: center;
            gap: 0.5rem;
            font-weight: 600;
            color: var(--text-primary);
            margin-bottom: 0.75rem;
            font-size: 0.9rem;
        }

        .section-header i {
            color: var(--primary);
        }

        .popup-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 0.75rem;
        }

        .popup-grid-2 {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 0.75rem;
        }

        .popup-detail {
            background: var(--bg-card-light);
            padding: 0.75rem;
            border-radius: 8px;
        }

        .popup-detail label {
            display: flex;
            align-items: center;
            gap: 0.375rem;
            font-size: 0.65rem;
            color: var(--text-muted);
            margin-bottom: 0.25rem;
            text-transform: uppercase;
        }

        .popup-detail label i {
            font-size: 0.7rem;
            color: var(--primary);
        }

        .popup-detail value {
            display: block;
            font-size: 0.9rem;
            font-weight: 600;
            color: var(--text-primary);
        }

        .popup-detail .sub-value {
            font-size: 0.7rem;
            color: var(--text-secondary);
            font-weight: 400;
        }

        /* Route Display */
        .route-display {
            display: flex;
            align-items: center;
            gap: 1rem;
            padding: 1rem;
            background: var(--bg-card-light);
            border-radius: 10px;
        }

        .route-airport {
            text-align: center;
            flex: 0 0 auto;
        }

        .airport-code {
            font-size: 1.5rem;
            font-weight: 700;
            color: var(--text-primary);
        }

        .route-airport.departure .airport-code {
            color: var(--success);
        }

        .route-airport.arrival .airport-code {
            color: var(--primary);
        }

        .airport-name {
            font-size: 0.65rem;
            color: var(--text-secondary);
            margin-top: 0.25rem;
            max-width: 120px;
            text-align: center;
            line-height: 1.3;
            word-wrap: break-word;
        }

        .route-line-visual {
            flex: 1;
            height: 2px;
            background: var(--border);
            position: relative;
        }

        .route-progress {
            position: absolute;
            left: 50%;
            top: 50%;
            transform: translate(-50%, -50%);
            color: var(--primary);
            background: var(--bg-card-light);
            padding: 0.5rem;
        }

        /* Popup Actions */
        .popup-actions {
            padding: 1rem 1.25rem;
            border-top: 1px solid var(--border);
        }

        .popup-action-btn {
            width: 10em;
            padding: 0.75rem;
            background: var(--primary);
            color: white;
            border: none;
            border-radius: 8px;
            font-weight: 600;
            cursor: pointer;
            display: flex;
            align-items: center;
            justify-content: center;
            gap: 0.5rem;
            transition: all 0.2s;
            float: right;
            margin-right: 10px;
            margin-bottom: 10px;
        }

        .popup-action-btn:hover {
            background: var(--primary-dark);
        }

        /* History Section */
        .history-section, .stats-section {
            display: none;
            flex-direction: column;
            height: 100%;
            padding: 1rem;
            overflow-y: auto;
        }

        .history-section.active, .stats-section.active {
            display: flex;
        }

        .chart-container {
            background: var(--bg-sidebar);
            border-radius: 10px;
            padding: 1rem;
            margin-bottom: 1rem;
            border: 1px solid var(--border);
        }

        .chart-title {
            font-weight: 600;
            margin-bottom: 0.75rem;
            font-size: 0.9rem;
        }

        /* History Cards */
        .history-list {
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
            gap: 1rem;
            max-height: 400px;
            overflow-y: auto;
            padding: 0.5rem;
        }

        .history-card {
            background: var(--bg-card-light);
            border-radius: 12px;
            padding: 1rem;
            border: 1px solid var(--border);
            transition: all 0.2s ease;
        }

        .history-card:hover {
            border-color: var(--primary);
            transform: translateY(-2px);
            box-shadow: 0 6px 20px rgba(99, 102, 241, 0.15);
        }

        .history-card-header {
            display: flex;
            justify-content: space-between;
            align-items: center;
            margin-bottom: 0.75rem;
            padding-bottom: 0.75rem;
            border-bottom: 1px solid var(--border);
        }

        .history-flight-number {
            font-weight: 700;
            color: var(--primary);
            font-size: 0.95rem;
        }

        .history-delay-badge {
            display: flex;
            align-items: center;
            gap: 0.25rem;
            padding: 0.25rem 0.5rem;
            border-radius: 6px;
            font-size: 0.65rem;
            font-weight: 600;
        }

        .history-delay-badge.on-time {
            background: rgba(16, 185, 129, 0.15);
            color: var(--success);
        }

        .history-delay-badge.delayed {
            background: rgba(245, 158, 11, 0.15);
            color: var(--warning);
        }

        .history-delay-badge.severe {
            background: rgba(239, 68, 68, 0.2);
            color: #dc2626;
        }

        .date-filter {
            display: flex;
            gap: 0.5rem;
            margin-bottom: 1rem;
        }

        .date-filter input {
            flex: 1;
            padding: 0.5rem;
            background: var(--bg-card-light);
            border: 1px solid var(--border);
            border-radius: 8px;
            color: var(--text-primary);
            font-size: 0.875rem;
        }

        .pagination {
            display: flex;
            justify-content: center;
            gap: 0.5rem;
            margin-top: 1rem;
        }

        .page-btn {
            padding: 0.5rem 0.75rem;
            background: var(--bg-sidebar);
            border: 1px solid var(--border);
            border-radius: 6px;
            cursor: pointer;
            font-size: 0.8rem;
            color: var(--text-primary);
            transition: all 0.2s;
        }

        .page-btn:hover, .page-btn.active {
            background: var(--primary);
            color: white;
            border-color: var(--primary);
        }

        /* Flight tooltip */
        .flight-tooltip {
            background: var(--bg-sidebar);
            color: var(--text-primary);
            border: 1px solid var(--border);
            border-radius: 6px;
            padding: 4px 8px;
            font-size: 12px;
            font-weight: 500;
            box-shadow: 0 4px 12px var(--shadow);
        }

        /* Selected flight tooltip - more prominent */
        .selected-flight-tooltip {
            background: var(--accent-primary);
            color: white;
            border: 2px solid var(--accent-secondary);
            border-radius: 8px;
            padding: 8px 12px;
            font-size: 13px;
            font-weight: 600;
            box-shadow: 0 6px 20px rgba(16, 185, 129, 0.3);
            z-index: 1000;
            opacity: 1;
            background-color: darkolivegreen;
        }

        /* Theme Toggle */
        .theme-toggle {
            position: absolute;
            bottom: 8rem; /* move above the map legend */
            right: 1rem;
            width: 36px;
            height: 36px;
            border-radius: 50%;
            background: var(--bg-sidebar);
            border: 1px solid var(--border);
            color: var(--text-primary);
            cursor: pointer;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 0.9rem;
            z-index: 1001;
            box-shadow: 0 2px 8px var(--shadow);
            transition: all 0.2s;
        }
        .theme-toggle:hover { border-color: var(--primary); color: var(--primary); }

        /* Mobile hamburger */
        .mobile-menu-btn {
            display: none;
            position: fixed;
            top: 0.75rem;
            left: 0.75rem;
            width: 40px;
            height: 40px;
            border-radius: 10px;
            background: var(--bg-sidebar);
            border: 1px solid var(--border);
            color: var(--text-primary);
            cursor: pointer;
            align-items: center;
            justify-content: center;
            font-size: 1.1rem;
            z-index: 1100;
            box-shadow: 0 2px 12px var(--shadow);
        }
        .sidebar-overlay {
            display: none;
            position: fixed;
            inset: 0;
            background: rgba(0,0,0,0.4);
            z-index: 999;
        }
        .sidebar-overlay.active { display: block; }

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

            .app-container {
                flex-direction: column;
            }

            .sidebar {
                position: fixed;
                top: 0;
                left: 0;
                width: 85%;
                max-width: 360px;
                height: 100vh;
                transform: translateX(-100%);
                z-index: 1000;
                box-shadow: 4px 0 20px rgba(0,0,0,0.2);
            }
            .sidebar.mobile-open {
                transform: translateX(0);
            }

            .map-container {
                width: 100%;
                height: 100vh;
            }

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

            .history-list {
                grid-template-columns: 1fr;
            }

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

            .flight-popup {
                width: 95%;
                max-height: 85vh;
            }

            .info-panel {
                bottom: 0.5rem;
                left: 0.5rem;
                right: 0.5rem;
                font-size: 0.65rem;
                gap: 0.5rem;
                padding: 0.5rem 0.75rem;
            }

            .map-controls {
                top: 0.75rem;
                right: 3.5rem;
            }

            .zoom-slider-container {
                flex-direction: column;
                gap: 0.25rem;
                padding: 0.5rem 0.75rem;
            }

            .zoom-slider {
                width: 100px;
                height: 3px;
            }

            .theme-toggle {
                top: 0.75rem;
                right: 0.5rem;
                width: 32px;
                height: 32px;
            }

            .route-display {
                flex-direction: column;
                gap: 0.5rem;
            }
            .route-line-visual { display: none; }
        }

        @media (max-width: 480px) {
            .stats-grid { grid-template-columns: 1fr 1fr; gap: 0.375rem; padding: 0.5rem 0.75rem; }
            .stat-value { font-size: 1rem; }
            .filter-buttons { padding: 0.5rem 0.75rem; gap: 0.375rem; }
            .search-box { padding: 0.5rem 0.75rem; }
            .popup-grid, .popup-grid-2 { grid-template-columns: 1fr !important; }
            .auth-modal-content { padding: 1.5rem !important; }
            .flight-stats { flex-wrap: wrap; gap: 0.5rem; }
        }

        /* ========== Auth UI ========== */
        .user-bar {
            display: flex;
            align-items: center;
            gap: 0.5rem;
            padding: 0.5rem 1rem;
            border-bottom: 1px solid var(--border);
            font-size: 0.8rem;
            background: var(--bg-sidebar);
        }
        .user-bar .user-avatar {
            width: 28px; height: 28px; border-radius: 50%;
            background: var(--primary); color: white;
            display: flex; align-items: center; justify-content: center;
            font-size: 0.7rem; font-weight: 700; overflow: hidden; flex-shrink: 0;
            margin-right: 0.5rem;
        }
        .user-bar .user-avatar img { width: 100%; height: 100%; object-fit: cover; }
        .user-bar .user-name { flex: 1; font-weight: 500; color: var(--text-primary); white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
        .user-bar .user-email { font-size: 0.65rem; color: var(--text-muted); }
        .user-bar button {
            padding: 0.3rem 0.6rem; border: 1px solid var(--border); border-radius: 6px;
            background: var(--bg-sidebar); color: var(--text-secondary); font-size: 0.7rem;
            cursor: pointer; font-family: inherit; transition: all 0.2s;
        }
        .user-bar button:hover { border-color: var(--danger); color: var(--danger); }
        .user-bar .btn-buy-credits {
            padding: 0.3rem 0.5rem; border: 1px solid var(--primary); background: var(--primary);
            color: white; border-radius: 50%; width: 28px; height: 28px; display: flex; align-items: center; justify-content: center;
        }
        .user-bar .btn-buy-credits:hover { background: var(--primary-dark); border-color: var(--primary-dark); }

        /* ========== User menu dropdown ========== */
        .user-bar {
            position: relative; /* container for dropdown */
        }
        .user-bar .user-info {
            display: flex;
            align-items: center;
            cursor: pointer;
            flex: 1;
        }
        .user-bar .menu-icon {
            margin-left: 0.25rem;
            font-size: 0.75rem;
            transition: transform 0.2s;
        }
        .user-bar .menu-icon.open {
            transform: rotate(180deg);
        }
        .user-menu {
            position: absolute;
            top: 100%;
            left: 0;
            right: 0;
            background: var(--bg-sidebar);
            border: 1px solid var(--border);
            box-shadow: 0 2px 6px rgba(0,0,0,0.1);
            display: none;
            flex-direction: column;
            z-index: 1100;
        }
        .user-menu.show {
            display: flex;
        }
        .user-menu .menu-item {
            padding: 0.5rem 1rem;
            font-size: 0.8rem;
            color: var(--text-primary);
            cursor: pointer;
        }
        .user-menu .menu-item:hover {
            background: grey;
            color: var(--text-light);
        }

        /* Overlay for menu actions */
        .user-overlay {
            position: fixed;
            top: 0; left: 0; right: 0; bottom: 0;
            background: rgba(0,0,0,0.5);
            display: none;
            align-items: center;
            justify-content: center;
            z-index: 1200;
        }
        .user-overlay.active {
            display: flex;
        }
        .user-modal-content {
            background-color: #e2e8f0;
            padding: 1.5rem;
            border-radius: 8px;
            width: 90%;
            max-width: 700px;
            position: relative;
        }
        .user-overlay .overlay-close {
            position: absolute;
            top: 0.5rem;
            right: 0.5rem;
            background: transparent;
            border: none;
            font-size: 1.25rem;
            cursor: pointer;
        }

        .sign-in-bar {
            display: flex; align-items: center; gap: 0.5rem;
            padding: 0.6rem 1rem; border-bottom: 1px solid var(--border);
            background: var(--bg-sidebar);
        }
        .sign-in-bar .sign-in-prompt { flex: 1; font-size: 0.75rem; color: var(--text-secondary); }
        .sign-in-bar .sign-in-btn {
            padding: 0.4rem 0.75rem; background: var(--primary); color: white; border: none;
            border-radius: 6px; font-size: 0.75rem; font-weight: 600; cursor: pointer;
            font-family: inherit; transition: all 0.2s; display: flex; align-items: center; gap: 0.35rem;
        }
        .sign-in-bar .sign-in-btn:hover { background: var(--primary-dark); }

        /* Auth Modal */
        .auth-overlay {
            position: fixed; top: 0; left: 0; right: 0; bottom: 0;
            background: rgba(0,0,0,0.5); z-index: 3000;
            display: none; align-items: center; justify-content: center; padding: 1rem;
        }
        .auth-overlay.active { display: flex; }
        .auth-modal-content {
            background: var(--bg-sidebar); border-radius: 16px; padding: 2rem;
            width: 100%; max-width: 400px; position: relative;
            box-shadow: 0 20px 60px rgba(0,0,0,0.25);
        }
        .auth-close {
            position: absolute; top: 1rem; right: 1rem; width: 32px; height: 32px;
            border-radius: 50%; border: none; background: var(--bg-card-light);
            color: var(--text-secondary); cursor: pointer; display: flex;
            align-items: center; justify-content: center; font-size: 0.9rem;
        }
        .auth-close:hover { background: var(--border); }
        .auth-header { text-align: center; margin-bottom: 1.5rem; }
        .auth-header .auth-icon {
            width: 56px; height: 56px; background: var(--primary); border-radius: 14px;
            display: flex; align-items: center; justify-content: center; margin: 0 auto 1rem;
        }
        .auth-header .auth-icon i { color: white; font-size: 1.25rem; }
        .auth-header h2 { font-size: 1.25rem; font-weight: 700; color: var(--text-primary); }
        .auth-header p { font-size: 0.8rem; color: var(--text-secondary); margin-top: 0.25rem; }

        .auth-google-btn {
            width: 100%; padding: 0.7rem; border: 1px solid var(--border); border-radius: 10px;
            background: var(--bg-sidebar); color: var(--text-primary); font-size: 0.85rem;
            font-weight: 500; cursor: pointer; display: flex; align-items: center;
            justify-content: center; gap: 0.6rem; font-family: inherit; transition: all 0.2s;
        }
        .auth-google-btn:hover { border-color: var(--primary); background: var(--bg-card-light); }
        .auth-google-btn img { width: 18px; height: 18px; }

        .auth-divider {
            display: flex; align-items: center; gap: 1rem; margin: 1.25rem 0;
            color: var(--text-muted); font-size: 0.75rem;
        }
        .auth-divider::before, .auth-divider::after {
            content: ''; flex: 1; height: 1px; background: var(--border);
        }

        .auth-form .form-group { margin-bottom: 0.875rem; }
        .auth-form .form-group label {
            display: block; font-size: 0.7rem; font-weight: 600; color: var(--text-secondary);
            text-transform: uppercase; letter-spacing: 0.3px; margin-bottom: 0.3rem;
        }
        .auth-form .form-group input {
            width: 100%; padding: 0.65rem 0.75rem; border: 1px solid var(--border);
            border-radius: 8px; font-size: 0.85rem; font-family: inherit;
            background: var(--bg-input); color: var(--text-primary); transition: all 0.2s;
        }
        .auth-form .form-group input:focus {
            outline: none; border-color: var(--primary);
            box-shadow: 0 0 0 3px rgba(99,102,241,0.15);
        }
        .auth-submit {
            width: 100%; padding: 0.7rem; background: var(--primary); color: white;
            border: none; border-radius: 10px; font-size: 0.85rem; font-weight: 600;
            cursor: pointer; font-family: inherit; transition: all 0.2s;
            display: flex; align-items: center; justify-content: center; gap: 0.4rem;
        }
        .auth-submit:hover { background: var(--primary-dark); }
        .auth-submit:disabled { opacity: 0.6; cursor: not-allowed; }
        .auth-error {
            color: var(--danger); font-size: 0.8rem; text-align: center;
            margin-bottom: 0.75rem; display: none;
        }
        .auth-error.show { display: block; }
        .auth-switch {
            text-align: center; margin-top: 1rem; font-size: 0.8rem; color: var(--text-secondary);
        }
        .auth-switch a {
            color: var(--primary); cursor: pointer; font-weight: 600; text-decoration: none;
        }
        .auth-switch a:hover { text-decoration: underline; }

        /* Credit Purchase Modal */
        .credit-modal-content {
            max-width: 700px;
            max-height: 90vh;
            overflow-y: auto;
            scrollbar-width: thin;
            scrollbar-color: var(--primary) var(--border);
        }

        .credit-modal-content::-webkit-scrollbar {
            width: 6px;
        }

        .credit-modal-content::-webkit-scrollbar-track {
            background: var(--border);
            border-radius: 3px;
        }

        .credit-modal-content::-webkit-scrollbar-thumb {
            background: var(--primary);
            border-radius: 3px;
        }

        .credit-modal-content::-webkit-scrollbar-thumb:hover {
            background: var(--primary-dark);
        }

        .ad-request-modal-content { max-width: 500px; }

        .ad-request-form { margin-top: 1rem; }

        .ad-cost-info {
            background: var(--bg);
            padding: 1rem;
            border-radius: 8px;
            margin: 1rem 0;
            display: flex;
            justify-content: space-between;
            align-items: center;
        }

        .cost-display, .credits-balance {
            font-size: 0.9rem;
        }
        .credit-packages {
            display: grid; grid-template-columns: 1fr 1fr; gap: 1rem; margin: 1.5rem 0;
        }
        .credit-package {
            border: 2px solid var(--border); border-radius: 12px; padding: 1rem;
            text-align: center; cursor: pointer; transition: all 0.2s;
            background: var(--bg-card);
        }
        .credit-package:hover, .credit-package.selected {
            border-color: var(--primary); background: rgba(99,102,241,0.05);
        }
        .package-amount {
            font-size: 1.2rem; font-weight: 700; color: var(--primary); margin-bottom: 0.25rem;
        }
        .package-credits {
            font-size: 0.9rem; font-weight: 600; color: var(--text-primary); margin-bottom: 0.25rem;
        }
        .package-value {
            font-size: 0.75rem; color: var(--text-secondary);
        }
        .billing-form {
            margin-top: 2rem;
            padding: 2rem;
            background: linear-gradient(135deg, #f8fafc 0%, #f1f5f9 100%);
            border-radius: 16px;
            border: 1px solid rgba(99,102,241,0.1);
            box-shadow: 0 8px 32px rgba(0,0,0,0.08);
            position: relative;
            overflow: hidden;
        }

        .billing-form::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            height: 4px;
            background: linear-gradient(90deg, #6366f1, #8b5cf6, #ec4899);
        }

        .billing-header {
            text-align: center;
            margin-bottom: 2rem;
        }

        .billing-header .billing-icon {
            width: 60px;
            height: 60px;
            background: linear-gradient(135deg, #6366f1, #8b5cf6);
            border-radius: 16px;
            display: flex;
            align-items: center;
            justify-content: center;
            margin: 0 auto 1rem;
            box-shadow: 0 8px 24px rgba(99,102,241,0.3);
            animation: pulse 2s infinite;
        }

        .billing-header .billing-icon i {
            color: white;
            font-size: 1.5rem;
        }

        .billing-header h3 {
            font-size: 1.5rem;
            font-weight: 700;
            color: var(--text-primary);
            margin-bottom: 0.5rem;
            background: linear-gradient(135deg, #6366f1, #8b5cf6);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }

        .billing-header p {
            color: var(--text-secondary);
            font-size: 0.9rem;
            margin: 0;
        }

        .billing-form-grid {
            display: grid;
            gap: 1.5rem;
            grid-template-columns: 1fr;
        }

        .billing-field-row {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 1rem;
        }

        .billing-field-group {
            position: relative;
            background: white;
            border-radius: 12px;
            padding: 1rem;
            border: 1px solid var(--border);
            transition: all 0.3s ease;
            box-shadow: 0 2px 8px rgba(0,0,0,0.04);
        }

        .billing-field-group:hover {
            border-color: #6366f1;
            box-shadow: 0 4px 16px rgba(99,102,241,0.15);
            transform: translateY(-2px);
        }

        .billing-field-group:focus-within {
            border-color: #6366f1;
            box-shadow: 0 0 0 3px rgba(99,102,241,0.1);
        }

        .billing-field-full {
            grid-column: 1 / -1;
        }

        .billing-field-row {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 1rem;
        }

        .field-icon {
            position: absolute;
            left: 1rem;
            top: 50%;
            transform: translateY(-50%);
            width: 20px;
            height: 20px;
            color: #6366f1;
            z-index: 2;
            transition: all 0.3s ease;
        }

        .billing-field-group:hover .field-icon {
            color: #8b5cf6;
            transform: translateY(-50%) scale(1.1);
        }

        .field-content {
            margin-left: 2.5rem;
        }

        .field-content label {
            display: block;
            font-size: 0.75rem;
            font-weight: 600;
            color: var(--text-secondary);
            text-transform: uppercase;
            letter-spacing: 0.5px;
            margin-bottom: 0.5rem;
            transition: color 0.3s ease;
        }

        .billing-field-group:hover .field-content label {
            color: #6366f1;
        }

        .field-content input,
        .field-content textarea {
            width: 100%;
            padding: 0.75rem 0.75rem 0.75rem 0;
            border: none;
            border-radius: 8px;
            font-size: 0.9rem;
            font-family: inherit;
            background: transparent;
            color: var(--text-primary);
            transition: all 0.3s ease;
            outline: none;
        }

        .field-content input::placeholder,
        .field-content textarea::placeholder {
            color: #94a3b8;
            opacity: 1;
        }

        .field-content input:focus,
        .field-content textarea:focus {
            background: rgba(99,102,241,0.05);
        }

        .field-content textarea {
            resize: vertical;
            min-height: 80px;
        }

        .billing-security-notice {
            display: flex;
            align-items: center;
            gap: 0.75rem;
            padding: 1rem;
            background: linear-gradient(135deg, #10b981, #059669);
            border-radius: 12px;
            margin: 1.5rem 0;
            color: white;
        }

        .security-icon {
            width: 32px;
            height: 32px;
            background: rgba(255,255,255,0.2);
            border-radius: 8px;
            display: flex;
            align-items: center;
            justify-content: center;
        }

        .security-text strong {
            display: block;
            font-size: 0.9rem;
            margin-bottom: 0.25rem;
        }

        .security-text span {
            font-size: 0.8rem;
            opacity: 0.9;
        }

        .billing-submit-btn {
            width: 100%;
            padding: 0;
            background: linear-gradient(135deg, #6366f1, #8b5cf6);
            border: none;
            border-radius: 12px;
            cursor: pointer;
            transition: all 0.3s ease;
            box-shadow: 0 4px 16px rgba(99,102,241,0.3);
            overflow: hidden;
            position: relative;
        }

        .billing-submit-btn:hover {
            transform: translateY(-2px);
            box-shadow: 0 8px 24px rgba(99,102,241,0.4);
        }

        .billing-submit-btn:active {
            transform: translateY(0);
        }

        .billing-submit-btn::before {
            content: '';
            position: absolute;
            top: 0;
            left: -100%;
            width: 100%;
            height: 100%;
            background: linear-gradient(90deg, transparent, rgba(255,255,255,0.2), transparent);
            transition: left 0.5s;
        }

        .billing-submit-btn:hover::before {
            left: 100%;
        }

        .btn-content {
            display: flex;
            align-items: center;
            justify-content: center;
            gap: 0.75rem;
            padding: 1rem;
            color: white;
            font-weight: 600;
            font-size: 0.95rem;
            position: relative;
            z-index: 1;
        }

        .btn-content i {
            transition: transform 0.3s ease;
        }

        .billing-submit-btn:hover .btn-content i:last-child {
            transform: translateX(4px);
        }

        @keyframes pulse {
            0%, 100% {
                box-shadow: 0 8px 24px rgba(99,102,241,0.3);
            }
            50% {
                box-shadow: 0 8px 24px rgba(99,102,241,0.5);
            }
        }

        /* Responsive adjustments */
        @media (max-width: 768px) {
            .billing-form {
                padding: 1.5rem;
                margin-top: 1.5rem;
            }

            .billing-field-row {
                grid-template-columns: 1fr;
                gap: 1rem;
            }

            .billing-header h3 {
                font-size: 1.25rem;
            }

            .billing-form-grid {
                gap: 1rem;
            }

            .credit-modal-content {
                max-width: 95vw;
                margin: 1rem;
            }
        }

        /* ========== Marketing Slogan Banner ========== */
        @keyframes gradientShift {
            0% { background-position: 0% 50%; }
            50% { background-position: 100% 50%; }
            100% { background-position: 0% 50%; }
        }
        @keyframes sparkle {
            0%, 100% { opacity: 0.4; }
            50% { opacity: 1; }
        }
        .promo-banner {
            padding: 0.6rem 1rem;
            background: linear-gradient(135deg, #6366f1, #8b5cf6, #ec4899, #f43f5e);
            background-size: 300% 300%;
            animation: gradientShift 6s ease infinite;
            cursor: pointer;
            display: flex;
            align-items: center;
            gap: 0.6rem;
            border-bottom: 1px solid var(--border);
            transition: filter 0.2s;
            position: relative;
            overflow: hidden;
        }
        .promo-banner::before {
            content: '';
            position: absolute; top: -50%; left: -50%; width: 200%; height: 200%;
            background: radial-gradient(circle, rgba(255,255,255,0.15) 1px, transparent 1px);
            background-size: 20px 20px;
            animation: sparkle 3s ease-in-out infinite;
            pointer-events: none;
        }
        .promo-banner:hover { filter: brightness(1.1); }
        .promo-banner .promo-icon {
            font-size: 1.1rem; color: #fbbf24;
            filter: drop-shadow(0 0 4px rgba(251,191,36,0.6));
            flex-shrink: 0;
        }
        .promo-banner .promo-text {
            flex: 1; min-width: 0;
        }
        .promo-banner .promo-title {
            font-size: 0.7rem; font-weight: 700; color: white;
            text-transform: uppercase; letter-spacing: 0.5px;
            text-shadow: 0 1px 4px rgba(0,0,0,0.3);
        }
        .promo-banner .promo-sub {
            font-size: 0.6rem; color: rgba(255,255,255,0.85); margin-top: 1px;
        }
        .promo-banner .promo-arrow {
            color: white; font-size: 0.7rem; opacity: 0.7; flex-shrink: 0;
        }

        /* ========== Features Popup ========== */
        .features-overlay {
            position: fixed; inset: 0; z-index: 4000;
            background: rgba(0,0,0,0.6); backdrop-filter: blur(4px);
            display: none; align-items: center; justify-content: center;
            padding: 1rem;
        }
        .features-overlay.active { display: flex; }
        .features-modal {
            background: var(--bg-sidebar); border-radius: 20px;
            width: 100%; max-width: 640px; max-height: 90vh;
            overflow-y: auto; position: relative;
            box-shadow: 0 25px 80px rgba(0,0,0,0.35);
        }
        .features-hero {
            background: linear-gradient(135deg, #6366f1, #8b5cf6, #ec4899);
            padding: 2rem 2rem 1.5rem; border-radius: 20px 20px 0 0;
            text-align: center; position: relative; overflow: hidden;
        }
        .features-hero::before {
            content: ''; position: absolute; inset: 0;
            background: url("data:image/svg+xml,%3Csvg width='60' height='60' viewBox='0 0 60 60' xmlns='http://www.w3.org/2000/svg'%3E%3Cg fill='none' fill-rule='evenodd'%3E%3Cg fill='%23ffffff' fill-opacity='0.06'%3E%3Cpath d='M36 34v-4h-2v4h-4v2h4v4h2v-4h4v-2h-4zm0-30V0h-2v4h-4v2h4v4h2V6h4V4h-4zM6 34v-4H4v4H0v2h4v4h2v-4h4v-2H6zM6 4V0H4v4H0v2h4v4h2V6h4V4H6z'/%3E%3C/g%3E%3C/g%3E%3C/svg%3E");
            pointer-events: none;
        }
        .features-hero .hero-badge {
            display: inline-flex; align-items: center; gap: 0.4rem;
            background: rgba(255,255,255,0.2); border-radius: 20px;
            padding: 0.3rem 0.8rem; font-size: 0.65rem; font-weight: 600;
            color: white; margin-bottom: 0.75rem; backdrop-filter: blur(4px);
        }
        .features-hero h2 {
            font-size: 1.5rem; font-weight: 800; color: white;
            margin-bottom: 0.4rem; text-shadow: 0 2px 8px rgba(0,0,0,0.2);
        }
        .features-hero p {
            font-size: 0.8rem; color: rgba(255,255,255,0.9); max-width: 420px; margin: 0 auto;
            line-height: 1.5;
        }
        .features-close {
            position: absolute; top: 1rem; right: 1rem; width: 32px; height: 32px;
            border-radius: 50%; border: none; background: rgba(255,255,255,0.2);
            color: white; font-size: 1rem; cursor: pointer;
            display: flex; align-items: center; justify-content: center;
            transition: background 0.2s; backdrop-filter: blur(4px);
        }
        .features-close:hover { background: rgba(255,255,255,0.35); }
        .features-body { padding: 1.5rem 2rem 2rem; }
        .features-section-title {
            font-size: 0.65rem; font-weight: 700; text-transform: uppercase;
            letter-spacing: 0.8px; margin-bottom: 0.75rem;
            display: flex; align-items: center; gap: 0.5rem;
        }
        .features-section-title.free { color: var(--success); }
        .features-section-title.premium { color: #f59e0b; }
        .features-section-title .tag {
            font-size: 0.55rem; padding: 0.15rem 0.45rem; border-radius: 6px;
            font-weight: 700; letter-spacing: 0;
        }
        .features-section-title.free .tag { background: rgba(16,185,129,0.1); color: var(--success); }
        .features-section-title.premium .tag { background: rgba(245,158,11,0.1); color: #f59e0b; }
        .feature-grid {
            display: grid; grid-template-columns: 1fr 1fr; gap: 0.6rem;
            margin-bottom: 1.5rem;
        }
        .feature-item {
            display: flex; align-items: flex-start; gap: 0.6rem;
            background: var(--bg-card-light); border-radius: 12px;
            padding: 0.75rem; border: 1px solid var(--border);
            transition: all 0.2s;
        }
        .feature-item:hover { border-color: var(--primary); transform: translateY(-1px); }
        .feature-item .fi-icon {
            width: 32px; height: 32px; border-radius: 8px;
            display: flex; align-items: center; justify-content: center;
            font-size: 0.75rem; flex-shrink: 0;
        }
        .feature-item.free-item .fi-icon { background: rgba(16,185,129,0.1); color: var(--success); }
        .feature-item.premium-item .fi-icon { background: rgba(245,158,11,0.1); color: #f59e0b; }
        .feature-item .fi-text h4 { font-size: 0.75rem; font-weight: 600; color: var(--text-primary); }
        .feature-item .fi-text p { font-size: 0.65rem; color: var(--text-secondary); margin-top: 2px; line-height: 1.4; }
        .premium-item { position: relative; }
        .premium-item::after {
            content: 'PRO'; position: absolute; top: 0.4rem; right: 0.4rem;
            font-size: 0.5rem; font-weight: 800; color: #f59e0b;
            background: rgba(245,158,11,0.1); padding: 0.1rem 0.35rem;
            border-radius: 4px; letter-spacing: 0.5px;
        }
        .features-cta {
            text-align: center; padding: 1.25rem; border-top: 1px solid var(--border);
            margin-top: 0.5rem;
        }
        .features-cta-btn {
            padding: 0.7rem 2rem; border: none; border-radius: 12px;
            font-size: 0.85rem; font-weight: 700; cursor: pointer;
            font-family: inherit; transition: all 0.2s;
            background: linear-gradient(135deg, #6366f1, #8b5cf6);
            color: white; box-shadow: 0 4px 15px rgba(99,102,241,0.35);
        }
        .features-cta-btn:hover { transform: translateY(-1px); box-shadow: 0 6px 20px rgba(99,102,241,0.45); }
        .features-cta-sub {
            font-size: 0.65rem; color: var(--text-muted); margin-top: 0.5rem;
        }

        /* ========== Password Reset Form ========== */
        .password-reset-form {
            display: flex;
            flex-direction: column;
            gap: 1.2rem;
            margin-top: 1.5rem;
        }

        .password-reset-form .form-group {
            display: flex;
            flex-direction: column;
            gap: 0.4rem;
        }

        .password-reset-form .form-group label {
            font-size: 0.75rem;
            font-weight: 600;
            color: var(--text-secondary);
            text-transform: uppercase;
            letter-spacing: 0.5px;
        }

        .password-input-wrapper {
            position: relative;
            display: flex;
            align-items: center;
        }

        .password-input-wrapper i {
            position: absolute;
            left: 0.75rem;
            color: var(--text-muted);
            font-size: 0.85rem;
            pointer-events: none;
        }

        .password-reset-form input {
            width: 100%;
            padding: 0.75rem 0.75rem 0.75rem 2.5rem;
            border: 1.5px solid var(--border);
            border-radius: 8px;
            font-size: 0.85rem;
            font-family: inherit;
            background: var(--bg-input);
            color: var(--text-primary);
            transition: all 0.3s ease;
        }

        .password-reset-form input:focus {
            outline: none;
            border-color: var(--primary);
            box-shadow: 0 0 0 3px rgba(99, 102, 241, 0.15);
            background: var(--bg-sidebar);
        }

        .password-reset-form input::placeholder {
            color: var(--text-muted);
            font-style: italic;
        }

        .password-reset-error {
            color: var(--danger);
            font-size: 0.8rem;
            padding: 0.75rem;
            background: rgba(239, 68, 68, 0.1);
            border-left: 3px solid var(--danger);
            border-radius: 4px;
            display: none;
        }

        .password-reset-error.show {
            display: block;
            animation: slideIn 0.3s ease;
        }

        @keyframes slideIn {
            from {
                opacity: 0;
                transform: translateY(-5px);
            }
            to {
                opacity: 1;
                transform: translateY(0);
            }
        }

        .password-reset-form button {
            padding: 0.8rem;
            background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
            color: white;
            border: none;
            border-radius: 8px;
            cursor: pointer;
            font-weight: 600;
            font-size: 0.85rem;
            font-family: inherit;
            transition: all 0.3s ease;
            display: flex;
            align-items: center;
            justify-content: center;
            gap: 0.5rem;
        }

        .password-reset-form button:hover {
            transform: translateY(-2px);
            box-shadow: 0 4px 12px rgba(99, 102, 241, 0.3);
        }

        .password-reset-form button:active {
            transform: translateY(0);
        }

        [data-theme="dark"] .password-reset-form input:focus {
            border-color: var(--primary);
        }


        /* ========== Transactions Display ========== */
        .transactions-container {
            display: flex;
            flex-direction: column;
            gap: 1rem;
            margin-top: 1rem;
            max-height: 500px;
            overflow-y: auto;
            padding: 0.5rem 0;
        }

        .transactions-loading,
        .transactions-empty,
        .transactions-error {
            display: flex;
            flex-direction: column;
            align-items: center;
            justify-content: center;
            padding: 2rem;
            color: var(--text-secondary);
            text-align: center;
            gap: 0.75rem;
        }

        .transactions-loading i,
        .transactions-empty i,
        .transactions-error i {
            font-size: 2.5rem;
            color: var(--text-muted);
        }

        .transactions-empty p,
        .transactions-error p {
            font-size: 0.95rem;
            font-weight: 500;
            color: var(--text-primary);
        }

        .transactions-error small {
            font-size: 0.75rem;
            color: var(--danger);
        }

        .transaction-item {
            padding: 1rem;
            border: 1.5px solid var(--border);
            border-radius: 8px;
            background: var(--bg-input);
            transition: all 0.3s ease;
        }

        .transaction-item:hover {
            border-color: var(--primary);
            box-shadow: 0 4px 12px rgba(99, 102, 241, 0.1);
            transform: translateY(-1px);
        }

        .transaction-header {
            display: flex;
            justify-content: space-between;
            align-items: flex-start;
            margin-bottom: 0.75rem;
            padding-bottom: 0.75rem;
            border-bottom: 1px solid var(--border);
        }

        .transaction-info {
            display: flex;
            flex-direction: column;
            gap: 0.25rem;
        }

        .transaction-id {
            font-weight: 600;
            color: var(--text-primary);
            font-size: 0.9rem;
        }

        .transaction-date {
            font-size: 0.75rem;
            color: var(--text-muted);
        }

        .transaction-status {
            display: flex;
            align-items: center;
            gap: 0.4rem;
            font-size: 0.75rem;
            font-weight: 600;
            padding: 0.4rem 0.75rem;
            border-radius: 6px;
            text-transform: uppercase;
            letter-spacing: 0.5px;
        }

        .transaction-status.status-completed {
            background: rgba(34, 197, 94, 0.15);
            color: #22c55e;
        }

        .transaction-status.status-pending {
            background: rgba(250, 204, 21, 0.15);
            color: #facc15;
        }

        .transaction-status.status-failed {
            background: rgba(239, 68, 68, 0.15);
            color: #ef4444;
        }

        .transaction-status.status-refunded {
            background: rgba(59, 130, 246, 0.15);
            color: #3b82f6;
        }

        .transaction-details {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 0.75rem;
        }

        .transaction-detail {
            display: flex;
            justify-content: space-between;
            align-items: center;
            font-size: 0.85rem;
        }

        .detail-label {
            color: var(--text-secondary);
            font-weight: 500;
        }

        .detail-value {
            color: var(--text-primary);
            font-weight: 600;
        }

        /* Scrollbar styling for transactions container */
        .transactions-container::-webkit-scrollbar {
            width: 6px;
        }

        .transactions-container::-webkit-scrollbar-track {
            background: var(--bg-sidebar);
            border-radius: 10px;
        }

        .transactions-container::-webkit-scrollbar-thumb {
            background: var(--border);
            border-radius: 10px;
        }

        .transactions-container::-webkit-scrollbar-thumb:hover {
            background: var(--text-muted);
        }

        /* ========== Pagination Controls ========== */
        .transactions-pagination {
            display: flex;
            justify-content: center;
            align-items: center;
            gap: 1rem;
            margin-top: 1.5rem;
            padding-top: 1rem;
            border-top: 1px solid var(--border);
            flex-wrap: wrap;
        }

        .pagination-btn {
            padding: 0.5rem 1rem;
            background: var(--primary);
            color: white;
            border: none;
            border-radius: 6px;
            font-size: 0.85rem;
            font-weight: 500;
            cursor: pointer;
            display: flex;
            align-items: center;
            gap: 0.4rem;
            transition: all 0.3s ease;
        }

        .pagination-btn:hover:not(:disabled) {
            background: var(--primary-dark);
            transform: translateY(-2px);
            box-shadow: 0 4px 12px rgba(99, 102, 241, 0.3);
        }

        .pagination-btn:disabled {
            background: var(--text-muted);
            cursor: not-allowed;
            opacity: 0.5;
        }

        .pagination-info {
            font-size: 0.85rem;
            color: var(--text-secondary);
            min-width: 150px;
            text-align: center;
            font-weight: 500;
        }

        @media (max-width: 580px) {
            .feature-grid { grid-template-columns: 1fr; }
            .features-hero h2 { font-size: 1.2rem; }
            .features-body { padding: 1rem; }
            
            .transaction-details {
                grid-template-columns: 1fr;
            }
            
            .transaction-header {
                flex-direction: column;
                gap: 0.5rem;
            }
            
            .transactions-container {
                max-height: 400px;
            }

            .transactions-pagination {
                gap: 0.5rem;
            }

            .pagination-btn {
                padding: 0.4rem 0.8rem;
                font-size: 0.75rem;
            }

            .pagination-info {
                font-size: 0.75rem;
                min-width: auto;
            }
        }