html, body {
    margin: 0;
    padding: 0;
    height: 100vh;
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    background: #000;
}

@keyframes spin {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}

@keyframes pulse-dot {
    0%, 100% { opacity: 1; transform: scale(1); }
    50% { opacity: 0.6; transform: scale(1.1); }
}

@keyframes finger-bounce {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-8px); }
}

.finger-bounce { 
    display: inline-block; 
    animation: finger-bounce 1s ease-in-out infinite; 
}