* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html, body {
    height: 100%;
    overflow: hidden;
    background-color: #000000;
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, sans-serif;
}

#app {
    height: 100vh;
    width: 100vw;
    display: flex;
    justify-content: center;
    align-items: center;
    position: relative;
    transition: transform 0.15s ease-out, background-color 0.5s ease-in-out;
}

#counter {
    font-size: 120px;
    font-weight: 300;
    user-select: none;
    transition: color 0.5s ease-in-out;
}

@keyframes pulse {
    0% { opacity: 0.7; }
    50% { opacity: 1; }
    100% { opacity: 0.7; }
}

#counter {
    animation: pulse 1.5s ease-in-out infinite;
}

/* Scroll animation */
.scroll-start {
    transform: translateY(-10px);
}