:root {
            --bg: #fafaf9;
            --fg: #102a43;
            --accent: #0ea5e9;
            --navy: #102a43;
        }

        * {
            scroll-behavior: smooth;
        }

        html,
        body {
            overflow-x: hidden;
            max-width: 100%;
        }

        body {
            font-family: 'Inter', sans-serif;
        }

        .font-display {
            font-family: 'Playfair Display', serif;
        }

        ::-webkit-scrollbar {
            width: 8px;
        }

        ::-webkit-scrollbar-track {
            background: #f1f1f1;
        }

        ::-webkit-scrollbar-thumb {
            background: #0ea5e9;
            border-radius: 4px;
        }

        @keyframes fadeInUp {
            from {
                opacity: 0;
                transform: translateY(40px) scale(0.95);
            }

            to {
                opacity: 1;
                transform: translateY(0) scale(1);
            }
        }

        @keyframes float {

            0%,
            100% {
                transform: translateY(0);
            }

            50% {
                transform: translateY(-15px);
            }
        }

        @keyframes pulseGlow {

            0%,
            100% {
                box-shadow: 0 0 15px rgba(14, 165, 233, 0.4);
            }

            50% {
                box-shadow: 0 0 30px rgba(14, 165, 233, 0.7);
            }
        }

        .animate-fade-in-up {
            animation: fadeInUp 1s cubic-bezier(0.16, 1, 0.3, 1) forwards;
        }

        .animate-float {
            animation: float 4s ease-in-out infinite;
        }

        .pulse-glow {
            animation: pulseGlow 3s infinite;
        }

        .animation-delay-100 {
            animation-delay: 0.1s;
        }

        .animation-delay-200 {
            animation-delay: 0.2s;
        }

        .animation-delay-300 {
            animation-delay: 0.3s;
        }

        .animation-delay-400 {
            animation-delay: 0.4s;
        }

        .hero-gradient {
            background: linear-gradient(135deg, #f0f9ff 0%, #e0f2fe 50%, #eef2ff 100%);
        }

        .sky-gradient {
            background: linear-gradient(135deg, #0ea5e9 0%, #4f46e5 100%);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }

        .glass-effect {
            background: rgba(255, 255, 255, 0.75);
            backdrop-filter: blur(16px);
            -webkit-backdrop-filter: blur(16px);
            border: 1px solid rgba(255, 255, 255, 0.5);
        }

        .btn-primary {
            background: linear-gradient(135deg, #0ea5e9 0%, #4f46e5 100%);
            color: #ffffff;
            transition: all 0.4s cubic-bezier(0.16, 1, 0.3, 1);
            background-size: 200% auto;
        }

        .btn-primary:hover {
            background-position: right center;
            transform: translateY(-3px) scale(1.02);
            box-shadow: 0 15px 30px -5px rgba(79, 70, 229, 0.4);
            color: #ffffff;
        }

        .reveal {
            opacity: 0;
            transform: translateY(40px) scale(0.95);
            transition: all 0.8s cubic-bezier(0.34, 1.56, 0.64, 1);
        }

        .reveal.active {
            opacity: 1;
            transform: translateY(0) scale(1);
        }

        .focus-ring:focus-visible {
            outline: 2px solid #0ea5e9;
            outline-offset: 2px;
        }

        .nav-blur {
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
        }

        .pattern-overlay {
            background-image: 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='%230ea5e9' fill-opacity='0.05'%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");
        }

        /* Fullscreen Mobile Menu Animations */
        .mobile-menu-enter {
            opacity: 0;
            transform: translateY(-100%);
            pointer-events: none;
            transition: all 0.6s cubic-bezier(0.34, 1.56, 0.64, 1);
        }

        .mobile-menu-enter.active {
            opacity: 1;
            transform: translateY(0);
            pointer-events: auto;
        }

        .mobile-link {
            display: block;
            opacity: 0;
            transform: translateY(20px);
            transition: all 0.5s cubic-bezier(0.34, 1.56, 0.64, 1);
        }

        .mobile-menu-enter.active .mobile-link {
            opacity: 1;
            transform: translateY(0);
        }

        .social-icon {
            opacity: 0;
            transform: scale(0.8);
            transition: all 0.5s cubic-bezier(0.34, 1.56, 0.64, 1);
        }

        .mobile-menu-enter.active .social-icon {
            opacity: 1;
            transform: scale(1);
        }

        /* Staggered Delays */
        .delay-100 {
            transition-delay: 100ms;
        }

        .delay-150 {
            transition-delay: 150ms;
        }

        .delay-200 {
            transition-delay: 200ms;
        }

        .delay-250 {
            transition-delay: 250ms;
        }

        .delay-300 {
            transition-delay: 300ms;
        }

        .delay-400 {
            transition-delay: 400ms;
        }

        /* Tab System Logic */
        .tab-btn {
            transition: all 0.3s ease;
            border: 2px solid transparent;
        }

        .tab-btn.active {
            background-color: #0ea5e9;
            color: #102a43;
            border-color: #0ea5e9;
        }

        .tab-btn:not(.active):hover {
            border-color: #0ea5e9;
            color: #0ea5e9;
        }

        .tab-content {
            display: none;
            animation: fadeInUp 0.5s ease forwards;
        }

        .tab-content.active {
            display: block;
        }

        .sub-tab-btn.active {
            background-color: #334e68;
            color: #fff;
        }

        .sub-tab-btn:not(.active) {
            background-color: #f1f1f1;
            color: #333;
        }

        .sub-tab-btn:not(.active):hover {
            background-color: #ddd;
        }

        /* Service Category Cards */
        .category-card {
            background: white;
            border-radius: 2rem;
            padding: 2rem;
            text-align: center;
            border: 1px solid #f1f5f9;
            transition: all 0.5s cubic-bezier(0.4, 0, 0.2, 1);
        }
        .category-card:hover {
            transform: translateY(-10px);
            box-shadow: 0 25px 50px -12px rgba(14, 165, 233, 0.15);
            border-color: #0ea5e9;
        }

        /* Specification Tables */
        .spec-table {
            width: 100%;
            border-collapse: separate;
            border-spacing: 0;
            border-radius: 1rem;
            overflow: hidden;
            border: 1px solid #e2e8f0;
        }
        .spec-table th {
            background: #f8fafc;
            padding: 1rem;
            text-align: left;
            font-weight: 700;
            color: #0f172a;
            border-bottom: 1px solid #e2e8f0;
        }
        .spec-table td {
            padding: 1rem;
            border-bottom: 1px solid #e2e8f0;
            color: #475569;
        }
        .spec-table tr:last-child td {
            border-bottom: none;
        }

        /* Comparison Toggle (Mobile) */
        @media (max-width: 768px) {
            .comparison-wrapper {
                overflow-x: auto;
                -webkit-overflow-scrolling: touch;
            }
        }

        /* Badge Styles */
        .route-badge {
            display: inline-flex;
            align-items: center;
            gap: 0.5rem;
            padding: 0.25rem 0.75rem;
            border-radius: 9999px;
            font-size: 0.75rem;
            font-weight: 700;
            text-transform: uppercase;
            letter-spacing: 0.05em;
        }
        .badge-sky { background: #f0f9ff; color: #0369a1; border: 1px solid #bae6fd; }
        .badge-indigo { background: #eef2ff; color: #4338ca; border: 1px solid #c7d2fe; }

        /* Direct Answer Box Decoration */
        .answer-box {
            position: relative;
            background: rgba(255, 255, 255, 0.8);
            backdrop-filter: blur(12px);
            border: 1px solid rgba(255, 255, 255, 0.5);
            box-shadow: 0 10px 40px -10px rgba(0, 0, 0, 0.1);
        }
        .answer-box::before {
            content: '';
            position: absolute;
            top: -2px;
            left: 50%;
            transform: translateX(-50%);
            width: 60px;
            height: 4px;
            background: #0ea5e9;
            border-radius: 0 0 4px 4px;
        }

        /* Filter Bar & Pills */
        .filter-container {
            position: sticky;
            top: 5rem;
            z-index: 40;
            background: rgba(255, 255, 255, 0.9);
            backdrop-filter: blur(12px);
            border-bottom: 1px solid #e2e8f0;
            padding: 1.5rem 0;
            transition: all 0.3s ease;
        }
        
        .filter-pill {
            padding: 0.5rem 1.25rem;
            border-radius: 9999px;
            font-size: 0.875rem;
            font-weight: 600;
            border: 1px solid #e2e8f0;
            background: white;
            color: #475569;
            transition: all 0.2s ease;
            white-space: nowrap;
        }
        
        .filter-pill:hover {
            border-color: #0ea5e9;
            color: #0ea5e9;
        }
        
        .filter-pill.active {
            background: #0ea5e9;
            color: white;
            border-color: #0ea5e9;
            box-shadow: 0 4px 12px rgba(14, 165, 233, 0.3);
        }

        .filter-dropdown {
            padding: 0.5rem 2rem 0.5rem 1rem;
            border-radius: 0.75rem;
            font-size: 0.875rem;
            font-weight: 600;
            border: 1px solid #e2e8f0;
            background: white;
            color: #475569;
            cursor: pointer;
            appearance: none;
            background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' fill='none' viewBox='0 0 24 24' stroke='%2364748b'%3E%3Cpath stroke-linecap='round' stroke-linejoin='round' stroke-width='2' d='M19 9l-7 7-7-7'%3E%3C/path%3E%3C/svg%3E");
            background-repeat: no-repeat;
            background-position: right 0.75rem center;
            background-size: 1rem;
        }

        /* Vehicle Cards (Visual Grid) */
        .vehicle-card {
            transition: all 0.4s cubic-bezier(0.16, 1, 0.3, 1);
            height: 100%;
        }
        
        .vehicle-card:hover {
            transform: translateY(-8px);
            box-shadow: 0 25px 50px -12px rgba(16, 42, 67, 0.15);
            border-color: #0ea5e9;
        }

        .active-filter-badge {
            animation: fadeIn 0.3s ease forwards;
        }

        @keyframes fadeIn {
            from { opacity: 0; transform: scale(0.9); }
            to { opacity: 1; transform: scale(1); }
        }

        /* Result Animation */
        #fleet-grid > .vehicle-card {
            display: flex;
        }

        /* Responsive Filter Adjustments */
        @media (max-width: 1024px) {
            .filter-container {
                top: 4.5rem;
            }
        }