@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700;800;900&display=swap');
        
        * {
            font-family: 'Inter', sans-serif;
        }
        
        /* Hero Section Styles */
        .hero-gradient {
            background: linear-gradient(135deg, #0f172a 0%, #1e40af 50%, #3b82f6 100%);
            position: relative;
            overflow: hidden;
        }
        
        .hero-gradient::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            bottom: 0;
            background: url('data:image/svg+xml,<svg width="100" height="100" xmlns="http://www.w3.org/2000/svg"><defs><pattern id="grid" width="100" height="100" patternUnits="userSpaceOnUse"><path d="M 100 0 L 0 0 0 100" fill="none" stroke="rgba(255,255,255,0.05)" stroke-width="1"/></pattern></defs><rect width="100" height="100" fill="url(%23grid)"/></svg>');
            opacity: 0.3;
        }
        
        /* Card Styles */
        .grade-card {
            transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
            border: 2px solid transparent;
        }
        
        .grade-card:hover {
            transform: translateY(-8px);
            box-shadow: 0 20px 40px rgba(59, 130, 246, 0.2);
            border-color: #3b82f6;
        }
        
        .stats-card {
            background: linear-gradient(135deg, #eff6ff 0%, #dbeafe 100%);
            position: relative;
            overflow: hidden;
        }
        
        .stats-card::before {
            content: '';
            position: absolute;
            top: -50%;
            right: -50%;
            width: 200%;
            height: 200%;
            background: radial-gradient(circle, rgba(59, 130, 246, 0.1) 0%, transparent 70%);
            animation: pulse 3s ease-in-out infinite;
        }
        
        @keyframes pulse {
            0%, 100% { transform: scale(1); opacity: 0.5; }
            50% { transform: scale(1.1); opacity: 0.8; }
        }
        
        .testimonial-card {
            transition: all 0.3s ease;
            background: white;
            border-left: 4px solid transparent;
        }
        
        .testimonial-card:hover {
            border-left-color: #3b82f6;
            transform: translateX(8px);
        }
        
        /* Navigation Styles */
        .nav-link {
            position: relative;
            transition: color 0.3s ease;
        }
        
        .nav-link::after {
            content: '';
            position: absolute;
            bottom: -4px;
            left: 0;
            width: 0;
            height: 2px;
            background: #3b82f6;
            transition: width 0.3s ease;
        }
        
        .nav-link:hover::after {
            width: 100%;
        }
        
        /* Feature Icon Styles */
        .feature-icon {
            background: linear-gradient(135deg, #3b82f6 0%, #2563eb 100%);
            transition: all 0.3s ease;
        }
        
        .feature-icon:hover {
            transform: rotate(360deg) scale(1.1);
        }
        
        /* Section Title Styles */
        .section-title {
            position: relative;
            display: inline-block;
        }
        
        .section-title::after {
            content: '';
            position: absolute;
            bottom: -8px;
            left: 50%;
            transform: translateX(-50%);
            width: 60px;
            height: 4px;
            background: linear-gradient(90deg, #3b82f6 0%, #2563eb 100%);
            border-radius: 2px;
        }
        
        /* Mobile Menu */
        @media (max-width: 768px) {
            .mobile-menu {
                display: none;
            }
            
            .mobile-menu.active {
                display: block;
            }
        }