/* Scroll-to-top Button Styling */
    .scroll-to-top {
        position: fixed;
        bottom: 20px;
        right: 20px;
        display: none; /* Versteckt, bis User scrollt */
        z-index: 1000;
    }
    
    .scroll-to-top .btn {
        border-radius: 50%;
        width: 50px;
        height: 50px;
        box-shadow: 0 4px 8px rgba(0, 0, 0, 0.2);
        display: flex;
        align-items: center;
        justify-content: center;
        transition: all 0.3s ease-in-out;
    }
    
    .scroll-to-top .btn:hover {
        transform: scale(1.1);
    }