body::before {
    content: "CONFIDENTIAL";
    position: fixed;
    top: 40%;
    left: 50%;
    transform: translate(-50%, -50%) rotate(-30deg);
    font-size: 80px;
    color: rgba(0, 0, 0, 0.1); /* Light transparency */
    white-space: nowrap;
    pointer-events: none; /* Prevents interfering with clicks */
    z-index: 9999;
}