/* 1. THE VARIABLES */
:root {
    --neon-color: #6f00ff; 
    --bg-color: #050505;
}

body {
    background-color: var(--bg-color);
    font-family: 'Courier New', Courier, monospace;
    display: flex;
    justify-content: center;
    align-items: center;
    height: 100vh;
    margin: 0;
}

.back-btn {
    position: fixed;
    top: 20px;
    left: 20px;
    padding: 10px 20px;
    background: transparent;
    color: var(--neon-color);
    border: 2px solid var(--neon-color);
    text-decoration: none;
    border-radius: 6px;
    font-family: inherit;
    font-size: 0.85rem;
    letter-spacing: 2px;
    font-weight: bold;
    transition: all 0.3s;
    z-index: 1000;
    box-shadow: 0 0 10px var(--neon-color);
}
.back-btn:hover {
    background: var(--neon-color);
    color: var(--bg-color);
    box-shadow: 0 0 20px var(--neon-color), inset 0 0 10px rgba(111, 0, 255, 0.5);
}

.container {
    text-align: center;
    border: 4px solid var(--neon-color); 
    padding: 40px;
    border-radius: 20px;
    box-shadow: 0 0 20px var(--neon-color), inset 0 0 20px var(--neon-color);
}

.neon-text {
    font-size: 8rem;
    margin: 0;
    color: white;
    text-shadow: 
        0 0 10px var(--neon-color),
        0 0 20px var(--neon-color),
        0 0 40px var(--neon-color),
        0 0 80px var(--neon-color);
    animation: flicker 1.5s infinite alternate;
}

p {
    color: var(--neon-color);
    font-size: 1.5rem;
    letter-spacing: 5px;
    margin-top: 10px;
    font-weight: bold;
}

@keyframes flicker {
    0%, 19%, 21%, 23%, 25%, 54%, 56%, 100% {
        text-shadow: 
            0 0 10px var(--neon-color),
            0 0 20px var(--neon-color),
            0 0 40px var(--neon-color),
            0 0 80px var(--neon-color);
    }
    20%, 24%, 55% {
        text-shadow: none;
    }
}