:root {
    --glow-color: #ff0000;
    --bg-color: #050505;
}

body, html {
    margin: 0;
    padding: 0;
    width: 100%;
    height: 100%;
    background-color: var(--bg-color);
    color: white;
    font-family: 'Courier New', Courier, monospace;
    overflow: hidden;
    display: flex;
    justify-content: center;
    align-items: center;
}

body::before {
    content: "";
    display: block;
    position: absolute;
    top: 0; left: 0; bottom: 0; right: 0;
    background: linear-gradient(rgba(18, 16, 16, 0) 50%, rgba(0, 0, 0, 0.25) 50%), 
                linear-gradient(90deg, rgba(255, 0, 0, 0.06), rgba(0, 255, 0, 0.02), rgba(0, 0, 255, 0.06));
    z-index: 2;
    background-size: 100% 2px, 3px 100%;
    pointer-events: none;
}

.noise {
    position: fixed;
    top: 0; left: 0; width: 100%; height: 100%;
    z-index: 1;
    opacity: 0.05; /* Palautettu hienovaraiseksi */
    pointer-events: none;
    background-image: url('noise.svg');
    background-repeat: repeat;
}

.container {
    text-align: center;
    position: relative;
    z-index: 3;
    perspective: 1000px;
}

.number {
    font-size: 12rem;
    font-weight: 900;
    letter-spacing: -5px;
    margin: 0;
    color: #000;
    text-shadow: 
        0 0 10px var(--glow-color),
        0 0 20px var(--glow-color),
        0 0 40px var(--glow-color);
    animation: pulse 2s infinite alternate ease-in-out;
    user-select: none;
    cursor: pointer;
    will-change: transform;
    transform-style: preserve-3d;
    transition: transform 0.12s ease-out;
}

/* Ravistusohjaus: Pakotetaan pieni koko animaation sisällä */
.shaking {
    animation: shake 0.1s infinite linear;
}

@keyframes shake {
    0% { transform: translateZ(-80px) scale(0.88) translate(2px, 2px); }
    25% { transform: translateZ(-80px) scale(0.88) translate(-2px, -2px); }
    50% { transform: translateZ(-80px) scale(0.88) translate(-4px, 0px); }
    75% { transform: translateZ(-80px) scale(0.88) translate(4px, 2px); }
    100% { transform: translateZ(-80px) scale(0.88) translate(2px, -2px); }
}

.links {
    margin-top: 20px;
    text-transform: uppercase;
    letter-spacing: 5px;
}

.links a {
    color: rgba(255, 255, 255, 0.4);
    text-decoration: none;
    font-size: 0.8rem;
    margin: 0 15px;
    transition: color 0.3s, text-shadow 0.3s;
}

.links a:hover {
    color: var(--glow-color);
    text-shadow: 0 0 10px var(--glow-color);
}

@keyframes pulse {
    from { opacity: 0.7; filter: blur(1px); }
    to { opacity: 1; filter: blur(0px); }
}