body, html {
    margin: 0;
    padding: 0;
    height: 100%;
    overflow: hidden;
    background-color: #0d021f; /* A dark purple-blue background */
    font-family: 'Courier New', Courier, monospace;
}

#matrix-canvas {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 1;
}

.content-container {
    position: fixed;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    z-index: 2;
    text-align: center;
    color: white;
}

.logo {
    font-size: 8rem;
    color: #12425c;
    text-shadow: 0 0 10px #fff, 0 0 20px #fff, 0 0 30px #0fa, 0 0 40px #0fa;
    letter-spacing: 0.1em;
    margin-bottom: 40px;
}

.button-group button {
    background-color: rgba(255, 255, 255, 0.1);
    border: 1px solid rgba(255, 255, 255, 0.5);
    color: white;
    padding: 15px 30px;
    margin: 0 10px;
    font-size: 1rem;
    cursor: pointer;
    border-radius: 5px;
    transition: background-color 0.3s, box-shadow 0.3s;
}

.button-group button:hover {
    background-color: rgba(255, 255, 255, 0.2);
    box-shadow: 0 0 15px rgba(0, 255, 170, 0.6);
}