.burger {
    background: none;
    border: none;
    cursor: pointer;
    display: flex;
    flex-direction: column;
    gap: 6px;
    padding: 8px;
    z-index: 1000;
}

.burger__line {
    width: 30px;
    height: 3px;
    background: #fff;
    border-radius: 2px;
    transition: transform 0.3s ease, opacity 0.3s ease;
    transform-origin: center;
    padding: 0;
}

/* Offen: X-Animation */
.burger.is-open .burger__line:nth-child(1) {
    transform: translateY(9px) rotate(45deg);
}

.burger.is-open .burger__line:nth-child(2) {
    opacity: 0;
}

.burger.is-open .burger__line:nth-child(3) {
    transform: translateY(-9px) rotate(-45deg);
}