/* Echtes Overlay statt .l-header__main::after */
.l-header__main:after,
.l-header__main::after {
    content: none !important;
    display: none !important;
}

.l-header__overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100vw;
    height: 100vh;
    z-index: 10;
    margin: 0;
    padding: 0;
    border: 0;
    background-color: rgba(0, 0, 0, 0.6);
    opacity: 0;
    visibility: hidden;
    pointer-events: none;
    cursor: pointer;
    transition: opacity 0.3s ease, visibility 0.3s ease;
}

.h-nav-active .l-header__overlay {
    opacity: 1;
    visibility: visible;
    pointer-events: auto;
}

/* Disclosure-Gruppe: Link + Chevron-Button */
.m-main-nav__item--has-children {
    display: flex;
    flex-wrap: wrap;
    align-items: stretch;
    gap: 0;
}

.m-main-nav__item--has-children .m-main-nav__flyout {
    flex: 1 0 100%;
}

.m-main-nav__disclosure {
    appearance: none;
    border: 0;
    margin: 0;
    padding: 8px 10px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    background: transparent;
    color: #fff;
    border-radius: 4px;
    cursor: pointer;
    min-width: 44px;
    min-height: 44px;
}

.m-main-nav__disclosure .icon-chevron-down {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 12px;
    height: 12px;
    font-size: 8px;
}

.m-main-nav__disclosure[aria-expanded='true'] .icon-chevron-down {
    transform: rotate(180deg);
}

.m-main-nav__disclosure:hover {
    background-color: #0B5560;
    color: #fff;
}

.m-main-nav__disclosure:focus-visible {
    outline: 3px solid #C96A28;
    outline-offset: 2px;
}

.m-main-nav__item:has(.m-main-nav__link--current) .m-main-nav__disclosure {
    font-weight: 700;
}

.m-main-nav__flyout:not([hidden]) .m-main-nav__submenu {
    display: block;
    opacity: 1;
    visibility: visible;
    z-index: 2;
}

@media (max-width: 1023px) {
    /* Landmark bleibt sichtbar; nur die Liste ist zugeklappt (BITV 9.2.4.1) */
    .m-main-nav {
        position: static;
        opacity: 1;
        visibility: visible;
        width: auto;
        max-height: none;
        overflow: visible;
        padding: 0;
        background: transparent;
        margin-left: auto;
    }

    .m-main-nav__list {
        position: absolute;
        left: 0;
        right: 0;
        top: 100%;
        width: 100%;
        background-color: #16324F;
        padding: 40px 20px;
        opacity: 0;
        visibility: hidden;
        max-height: calc(100dvh - 100%);
        overflow: auto;
        z-index: 11;
    }

    .h-nav-active .m-main-nav__list {
        opacity: 1;
        visibility: visible;
    }

    .m-main-nav__item--has-children .m-main-nav__link {
        width: auto;
        flex: 1 1 auto;
    }

    .m-main-nav__disclosure {
        margin-left: auto;
    }

    .m-main-nav__disclosure .icon-chevron-down {
        width: 20px;
        height: 20px;
        font-size: 14px;
    }

    .h-easy-version .m-main-nav__disclosure {
        min-width: 48px;
        min-height: 48px;
    }
}

@media (min-width: 1024px) {
    .g-header-content {
        flex-wrap: wrap;
    }

    .m-main-nav {
        flex: 1 0 100%;
    }

    .h-nav-active .l-header__overlay {
        opacity: 0;
        visibility: hidden;
        pointer-events: none;
    }

    .l-header__main:has(.m-main-nav__item.is-open) .l-header__overlay,
    .l-header__main:has(.m-main-nav__item.accessibility-hover) .l-header__overlay,
    .l-header__main:has(.m-main-nav__disclosure[aria-expanded='true']) .l-header__overlay {
        opacity: 1;
        visibility: visible;
        pointer-events: auto;
    }

    .m-main-nav__item--has-children .m-main-nav__link {
        border-radius: 4px 0 0 4px;
        padding-right: 8px;
    }

    .m-main-nav__disclosure {
        background-color: #006D77;
        border-radius: 0 4px 4px 0;
        min-width: 36px;
        min-height: 0;
        padding: 8px 10px;
        margin-left: 0;
    }

    .m-main-nav__item:has(.m-main-nav__link--current) .m-main-nav__disclosure {
        background-color: #0B5560;
    }
}