:root {
            --primary: #2563eb;
            --primary-dark: #1e40af;
            --secondary: #f59e0b;
            --light: #f3f4f6;
            --dark: #1f2937;
        }
        
        body {
            font-family: 'Inter', sans-serif;
            background: linear-gradient(135deg, #f3f4f6 0%, #e5e7eb 100%);
            min-height: 100vh;
        }
        
        .card-hover {
            transition: all 0.3s ease;
        }
        
        .card-hover:hover {
            transform: translateY(-5px);
            box-shadow: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04);
        }
        
        .bundle-card {
            border-left: 4px solid var(--primary);
        }
        
        .btn-primary {
            background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
            transition: all 0.3s ease;
        }
        
        .btn-primary:hover {
            background: linear-gradient(135deg, var(--primary-dark) 0%, var(--primary) 100%);
            transform: translateY(-2px);
            box-shadow: 0 10px 15px -3px rgba(0, 0, 0, 0.1);
        }
        
        .feature-icon {
            width: 50px;
            height: 50px;
            border-radius: 12px;
            background-color: var(--primary);
            display: flex;
            align-items: center;
            justify-content: center;
            color: white;
            font-size: 1.5rem;
        }
        
        .step-number {
            width: 40px;
            height: 40px;
            border-radius: 50%;
            background-color: var(--primary);
            color: white;
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: bold;
            margin-right: 15px;
        }
        
        .loading-bar {
            height: 4px;
            width: 100%;
            background: linear-gradient(90deg, var(--primary) 0%, var(--secondary) 100%);
            position: relative;
            overflow: hidden;
        }
        
        .loading-bar::before {
            content: '';
            position: absolute;
            height: 100%;
            width: 50%;
            background: white;
            animation: loading 1.5s infinite ease-in-out;
        }
        
        @keyframes loading {
            0% { left: -50%; }
            100% { left: 150%; }
        }
        
        /* Mobile menu animation */
        .mobile-menu {
            transition: max-height 0.3s ease-out;
            max-height: 0;
            overflow: hidden;
        }
        
        .mobile-menu.open {
            max-height: 500px;
        }