/* Full page black background */
body {
    margin: 0;
    height: 100vh;
    display: flex;
    justify-content: center;
    align-items: center;
    background-color: black;
}

/* Centered container */
.centered-text {
    font-size: 8rem;
    font-weight: bold;
    text-transform: uppercase;
}

/* Animated rainbow text */
.rainbow-text {
    background: linear-gradient(90deg, 
        red, orange, yellow, green, cyan, blue, violet, red
    );
    background-size: 400% 100%;
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    animation: rainbow-shift 4s linear infinite;
}

/* Keyframe animation for shifting gradient */
@keyframes rainbow-shift {
    0% { background-position: 0% 50%; }
    100% { background-position: 270% 50%; }
}