/* ============================================
   Background Text
   ============================================ */
.background-text {
    position: fixed;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    font-size: 15vw;
    font-weight: 900;
    color: rgba(255, 255, 255, 0.03);
    z-index: 0;
    pointer-events: none;
    user-select: none;
    white-space: nowrap;
    letter-spacing: 0.1em;
    transition: color 0.3s ease;
}

/* Light Mode Background Text */
:root.light-mode .background-text {
    color: rgba(0, 0, 0, 0.03);
}

/* Mobile: Buchstaben übereinander */
@media (max-width: 768px) {
    .background-text {
        writing-mode: vertical-rl;
        text-orientation: upright;
        font-size: 12vw;
        letter-spacing: 0;
    }
}