body {
    margin: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: 100vh;
    background-color: #121212;
    font-family: sans-serif;
    overflow: hidden; /* Prevent scrollbars */
}

.container {
    text-align: center;
    color: #f8f8f8;
    position: relative;
    z-index: 1; /* Ensure content is above shapes */
}

.error-code {
    font-size: 8em;
    font-weight: bold;
    margin-bottom: 0.2em;
    text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.5);
    letter-spacing: 0.1em;
    background: linear-gradient(to right, #ff6b6b, #ffa94d);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.message {
    font-size: 3em;
    margin-bottom: 0.5em;
    text-shadow: 1px 1px 2px rgba(0, 0, 0, 0.3);
}

.explanation {
    font-size: 1.2em;
    color: #ccc;
    margin-bottom: 2em;
}

.geometric-shapes {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    pointer-events: none; /* Makes shapes non-interactive */
    z-index: 0;
}


.geometric-shapes::before {
    content: '';
    position: absolute;
    width: 300px;
    height: 300px;
    background: linear-gradient(135deg, #3498db, #9b59b6);
    border-radius: 50%;
    left: 10%;
    top: 20%;
    filter: blur(80px);
    opacity: 0.7;
    animation: floatShape 6s linear infinite;
}

.geometric-shapes::after {
    content: '';
    position: absolute;
    width: 200px;
    height: 200px;
    background: linear-gradient(45deg, #e74c3c, #f1c40f);
    border-radius: 50%;
    right: 15%;
    bottom: 15%;
    filter: blur(80px);
    opacity: 0.8;
    animation: floatShape2 8s linear infinite reverse;
}

@keyframes floatShape {
    0% {
        transform: translateY(0);
    }
    50% {
        transform: translateY(-20px);
    }
    100% {
        transform: translateY(0);
    }
}
@keyframes floatShape2 {
    0% {
        transform: translateX(0);
    }
    50% {
        transform: translateX(20px);
    }
    100% {
        transform: translateX(0);
    }
}