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

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
    background: linear-gradient(-45deg, #0f172a, #1e1b4b, #312e81, #0f172a);
    background-size: 400% 400%;
    animation: gradientBG 15s ease infinite;
    color: #f8fafc;
    height: 100vh;
    display: flex;
    justify-content: center;
    align-items: center;
    overflow: hidden;
    perspective: 1000px; /* Essential for 3D effect */
}

@keyframes gradientBG {
    0% { background-position: 0% 50%; }
    50% { background-position: 100% 50%; }
    100% { background-position: 0% 50%; }
}

.hero {
    text-align: center;
    transform-style: preserve-3d;
}

.numbers-container {
    display: flex;
    justify-content: center;
    gap: 20px;
    font-size: clamp(10rem, 40vw, 25rem);
    font-weight: 900;
    line-height: 1;
    margin-bottom: 2rem;
}

.number {
    display: inline-block;
    cursor: default;
    user-select: none;
    /* 3D Depth */
    text-shadow: 
        0 1px 0 #ccc,
        0 2px 0 #c9c9c9,
        0 3px 0 #bbb,
        0 4px 0 #b9b9b9,
        0 5px 0 #aaa,
        0 6px 1px rgba(0,0,0,.1),
        0 0 5px rgba(0,0,0,.1),
        0 1px 3px rgba(0,0,0,.3),
        0 3px 5px rgba(0,0,0,.2),
        0 5px 10px rgba(0,0,0,.25),
        0 10px 10px rgba(0,0,0,.2),
        0 20px 20px rgba(0,0,0,.15);
}

/* Remove old hover scaling, JS will handle tilt */
.number:hover {
    transform: none;
}

.six {
    background: linear-gradient(135deg, #ff0080, #7928ca);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    filter: drop-shadow(0 0 30px rgba(121, 40, 202, 0.5));
}

.seven {
    background: linear-gradient(135deg, #0070f3, #00dfd8);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    filter: drop-shadow(0 0 30px rgba(0, 112, 243, 0.5));
}

h1 {
    font-size: 1.5rem;
    font-weight: 300;
    letter-spacing: 0.2rem;
    text-transform: uppercase;
    opacity: 0.8;
}

@media (max-width: 600px) {
    .numbers-container {
        gap: 10px;
    }
}