body {
    font-family: 'Fira Code', monospace;
    margin: 0;
    padding: 0;
    background-color: var(--bg-color-dark);
    color: var(--text-color-dark);
    transition: background-color 0.3s, color 0.3s;
}

body.light-theme {
    background-color: var(--bg-color-light);
    color: var(--text-color-light);
}

#matrix-bg {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: -1;
    opacity: 0.05; /* Further reduced aggressiveness of matrix */
}

pre {
    background-color: #111;
    color: #f1f1f1;
    padding: 15px;
    border-radius: 8px;
    overflow-x: auto;
}

body.light-theme pre {
    background-color: #f0f0f0;
    color: #111;
}

@keyframes spin {
    to { transform: rotate(360deg); }
}