* {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }
        
        body {
            font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, sans-serif;
        }
        
        .font-serif {
            font-family: 'Merriweather', serif;
        }
        
        @keyframes pulse {
            0%, 100% { opacity: 0.2; }
            50% { opacity: 0.4; }
        }
        
        @keyframes bounce {
            0%, 100% { transform: translateY(0); }
            50% { transform: translateY(-10px); }
        }
        
        .animate-pulse {
            animation: pulse 2s cubic-bezier(0.4, 0, 0.6, 1) infinite;
        }
        
        .animate-bounce {
            animation: bounce 1s infinite;
        }
        
        .hover-scale:hover {
            transform: translateY(-4px);
        }
        
        .transition-all {
            transition: all 0.3s ease;
        }
        
        .hover-shadow:hover {
            box-shadow: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04);
        }