.code-block {
            background-color: #1e293b;
            color: #f8fafc;
            padding: 1rem;
            border-radius: 0.5rem;
            overflow-x: auto;
            font-family: 'Courier New', monospace;
        }
        .sidebar {
            position: sticky;
            top: 2rem;
        }
        .highlight {
            position: relative;
        }
        .highlight::after {
            content: '';
            position: absolute;
            left: 0;
            bottom: -2px;
            width: 100%;
            height: 2px;
            background: linear-gradient(90deg, #3b82f6, #8b5cf6);
            transform: scaleX(0);
            transform-origin: left;
            transition: transform 0.3s ease;
        }
        .highlight:hover::after {
            transform: scaleX(1);
        }

                /* Neomorphic Styles */
        .neo-card {
            background: #e0e5ec;
            border-radius: 20px;
            box-shadow: 
                9px 9px 16px rgba(163, 177, 198, 0.6),
                -9px -9px 16px rgba(255, 255, 255, 0.5);
        }
        
        .neo-btn {
            background: #e0e5ec;
            border-radius: 10px;
            box-shadow: 
                5px 5px 10px rgba(163, 177, 198, 0.6),
                -5px -5px 10px rgba(255, 255, 255, 0.5);
            transition: all 0.2s ease;
        }
        
        .neo-btn:active {
            box-shadow: 
                inset 3px 3px 5px rgba(163, 177, 198, 0.6),
                inset -3px -3px 5px rgba(255, 255, 255, 0.5);
        }
        
        /* Glassmorphism Styles */
        .glass-card {
            background: rgba(255, 255, 255, 0.15);
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
            border-radius: 20px;
            border: 1px solid rgba(255, 255, 255, 0.18);
            box-shadow: 0 8px 32px 0 rgba(31, 38, 135, 0.15);
        }
        
        .section-heading {
            scroll-margin-top: 1rem;
        }

        @import url('https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600;700&display=swap');
        
        body {
            font-family: 'Inter', sans-serif;
            background-color: #f8fafc;
        }
        
        .interaction-card {
            transition: all 0.3s ease;
            box-shadow: 0 4px 6px rgba(0, 0, 0, 0.05);
        }
        
        .interaction-card:hover {
            transform: translateY(-2px);
            box-shadow: 0 10px 15px rgba(0, 0, 0, 0.1);
        }
        
        .ripple {
            position: relative;
            overflow: hidden;
        }
        
        .ripple-effect {
            position: absolute;
            border-radius: 50%;
            background: rgba(255, 255, 255, 0.7);
            transform: scale(0);
            animation: ripple 600ms linear;
            pointer-events: none;
        }
        
        @keyframes ripple {
            to {
                transform: scale(4);
                opacity: 0;
            }
        }
        
        .btn-click {
            transition: transform 0.1s ease;
        }
        
        .btn-click:active {
            transform: scale(0.95);
        }
        
        .loader {
            width: 48px;
            height: 48px;
            border: 5px solid #e2e8f0;
            border-bottom-color: #3b82f6;
            border-radius: 50%;
            display: inline-block;
            animation: rotation 1s linear infinite;
        }
        
        @keyframes rotation {
            0% { transform: rotate(0deg); }
            100% { transform: rotate(360deg); }
        }
        
        .confetti {
            position: absolute;
            width: 10px;
            height: 10px;
            background-color: #f43f5e;
            opacity: 0;
        }
        
        .code-block {
            font-family: 'Courier New', monospace;
            font-size: 0.9rem;
            background-color: #1e293b;
            color: #e2e8f0;
        }
        
        .progress-celebration {
            position: relative;
            overflow: hidden;
        }
        
        .progress-celebration::after {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            bottom: 0;
            background: linear-gradient(90deg, rgba(59,130,246,0.2) 0%, rgba(99,102,241,0.2) 100%);
            transform: translateX(-100%);
        }
        
        .progress-celebration.complete::after {
            animation: progressCelebration 1.5s ease-out;
        }
        
        @keyframes progressCelebration {
            0% { transform: translateX(-100%); }
            100% { transform: translateX(100%); }
        }