.header__navigation-item {
	display: inline-block;
	position: relative;
}

.header__submenu {
	display: block;
	position: absolute;
	top: 100%;
	left: 0;
	background-color: rgba(255, 249, 246, 0.75);
	border-top: 1px solid var(--color-amethyst-grey);
	min-width: 200px;
	z-index: 1000;
    list-style: none;
    border-bottom-left-radius: 1rem;
    border-bottom-right-radius: 1rem;

    max-height: 0;
    opacity: 0;
    overflow: hidden;
    transition: background-color 0.2s ease-in, max-height 0.2s ease, opacity .2s ease-in; /* Плавное раскрытие и изменение прозрачности */

    box-shadow: rgba(0, 0, 0, 0.16) 0px 1px 4px;
}

.main_page .header__submenu {
	background-color: rgba(252, 229, 230, 0.75);
}

.header__submenu:hover {
    background-color: rgba(255, 249, 246, 1);
}

.main_page .header__submenu:hover {
	background-color: rgba(252, 229, 230, 1);
}

@media(max-width: 700px) {
    .header__submenu {
        background-color: rgba(255, 249, 246, 1) !important;
        border-radius: 1.25rem;
    }
}

.header__navigation-item:hover .header__submenu {
	max-height: 500px; /* Достаточно большое значение для содержимого */
	opacity: 1;
}

.header__submenu-item {
    padding: 0.75rem 1rem;
}

.header__submenu-item a {
    color: var(--color-amethyst-grey);
	text-decoration: none;
    border-bottom: 1px solid #0000;
}

.header__submenu-item a:hover {
    border-bottom-color: var(--color-adora);
}

.header__navigation .header__navigation-item:has(.item-selected),
.header__navigation .header__navigation-item:has(.root-item-selected) {
    border-bottom-color: var(--color-adora);
}



@media(max-width: 700px) {
    .header__navigation-item:has(.header__submenu) {
        border-left: 1px solid var(--color-sugar-milk);
        padding-left: 0.5rem;
    }

    .header__submenu {
        left: unset;
        right: 100%;
        top: 0;
    }
}

@media(min-width: 700px) {
    .header__navigation .mobile_only {
        display: none;
    }
}