/* ===================================
   NAVIGATION – BUTTONS ALS IMG
=================================== */

nav.main-nav {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 0;
    margin: 10px auto;
    padding: 25px 0;
    max-width: 1100px; /* 4 × 260px + etwas Abstand */
}

.nav-btn {
    width: 260px;
    height: auto;
    display: block;
    overflow: hidden;
	 margin: 0;
    padding: 0;
	line-height: 0;
}

.nav-btn img {
    width: 100%;
    height: 100%;
    object-fit: contain;
    display: block;
}

.nav-btn:hover img {
    transform: scale(1.03);
    filter: drop-shadow(0 0 12px gold) brightness(1.1);
    transition: 0.25s ease;
}