/* =========================
   BURGER v1.0
========================= */

.burger {
    position: relative;
    z-index: 10000;
}

.header-right {
    position: relative;
    z-index: 10000;
}

/* Кнопка */
.burger__btn {
    display: flex;
    flex-direction: column;
    justify-content: center;
    gap: 6px;

    width: 40px;
    height: 40px;

    background: transparent;
    border: none;
    cursor: pointer;
    padding: 0;
}

.burger__btn span {
    width: 28px;
    height: 3px;
    background: #fff;
    display: block;
    transition:
        transform 0.3s ease,
        opacity 0.3s ease;
}

/* Анимация → крестик */
.burger.open .burger__btn span:nth-child(1) {
    transform: translateY(8px) rotate(45deg);
}

.burger.open .burger__btn span:nth-child(2) {
    opacity: 0;
}

.burger.open .burger__btn span:nth-child(3) {
    transform: translateY(-8px) rotate(-45deg);
}