/* ===============================
   NAV MEGA — Mobile (Hamburger)
   =============================== */
header .frame {
    display: flex;
    justify-content: space-between;
}
.main-nav {
    display: none;
    background-color: var(--white);
    width: 100%;
}

body.nav_is_open .main-nav,
.nav_is_open .main-nav {
    display: block;
}
.main-nav-container {
    position: absolute;
    left: -20px;
    right: -20px;
    width: calc(100% + 40px);
    top: 100px;
}
@media screen and (min-width: 1200px) {
    .main-nav-container {
        position: relative;
        left: auto;
        right: auto;
        width: auto;
        top: auto;
        /* border-bottom: 1px solid var(--light-grey); */
    }
}
.main-nav-ul {
    list-style: none;
    margin: 0;
    padding: 0;
    padding-top: 52px;
}

.main-nav-ul > li {
    border-bottom: 1px solid rgba(0, 0, 0, 0.1);
    margin-bottom: 0;
    margin-left: 0;
    transition: all 0.2s ease-out;
    margin-top: 0;
    padding-left: 19px;
    padding-right: 19px;
}

.main-nav-ul > li button {
    transition: all 0.2s ease-out;
}

.main-nav-ul > li.is-open button {
    font-weight: 600;
}

/* Top-Level Links & Buttons (Button wird per JS erzeugt) */
.main-nav-ul > li > a,
.main-nav-ul > li > button {
    display: flex;
    align-items: center;
    justify-content: space-between;
    width: 100%;
    padding-left: 0;
    padding-right: 0;
    padding-top: 10px;
    padding-bottom: 10px;
    background: none;
    border: none;
    text-decoration: none;
    text-align: left;
    cursor: pointer;
    gap: 12px;
    font-size: calc(28 / var(--rootfactor) * 1rem);
    color: inherit;
}

.main-nav-ul > li > a {
    justify-content: flex-start;
}

.main-nav-ul > li > a:focus-visible,
.main-nav-ul > li > button:focus-visible {
    outline: 2px solid currentColor;
    outline-offset: 3px;
}

/* Chevron (per JS eingefügt) */
.nav-chevron {
    flex-shrink: 0;
    transition: transform 0.2s ease;
    width: 18px;
}

.main-nav-ul > li > button[aria-expanded="true"] .nav-chevron {
    transform: rotate(180deg);
}

/* Sub-Menu: Mobile Accordion-Panel */
.sub-menu {
    display: none;
    list-style: none;
    margin: 0;
    padding: 0;
}

.main-nav-ul > li.is-open > .sub-menu {
    display: block;
}

.sub-menu-group {
    margin-bottom: 0;
    padding-top: 32px;
}

.sub-menu-group:first-child {
    padding-top: 22px;
}

.sub-menu-group:last-child {
    padding-bottom: 25px;
    margin-bottom: 0;
}

.sub-nav-title {
    display: block;
    color: var(--secondary-color);
    font-weight: var(--semibold);
    font-size: calc(16 / var(--rootfactor) * 1rem);
    padding-bottom: 5px;
    margin-bottom: 0;
}

.sub-menu-group > ul {
    list-style: none;
    margin: 0;
    padding: 0;
}

.sub-menu-group > ul li {
    margin-bottom: 0;
}

.sub-menu-group > ul li > a {
    display: block;
    padding: 5.75px 0;
    color: var(--black);
    font-size: calc(16 / var(--rootfactor) * 1rem);
    text-decoration: none;
}

.sub-menu-group > ul li > a:hover {
    color: var(--primary-color);
}

.sub-menu-group > ul li > a:focus-visible {
    outline: 2px solid currentColor;
    outline-offset: 3px;
}

/* Aktiver Zustand */
.main-nav-ul .current-menu-ancestor > a,
.main-nav-ul .current-menu-ancestor > button {
    color: var(--primary-color);
}

.main-nav-ul .current-menu-item > a {
    color: var(--primary-color);
}

/* === SECONDARY-NAV MOBILE === */
.main-nav-container .secondary-nav {
    display: none;
}

.nav_is_open .main-nav-container .secondary-nav {
    display: block;
    padding: 20px 19px 32px;
    -webkit-animation: nav-fade-in 0.2s ease forwards;
    animation: nav-fade-in 0.2s ease forwards;
}

.main-nav-container .secondary-nav-ul {
    display: block;
    flex-wrap: wrap;
    gap: 6px 28px;
    list-style: none;
    margin: 0;
    padding: 0;
    font-size: calc(15 / var(--rootfactor) * 1rem);
    margin-bottom: 50px;
}
.main-nav-container .secondary-nav-ul li {
    margin-bottom: 0;
}
@media screen and (min-width: 1200px) {
    .main-nav-container .secondary-nav-ul {
        display: flex;
        margin-bottom: 0;
    }
}
.main-nav-container .secondary-nav-ul a {
    display: block;
    padding: 4px 0;
    text-decoration: none;
    color: inherit;
}
.main-nav .sub-menu a {
    text-decoration: none;
}
.main-nav-container .secondary-nav-ul a:focus-visible {
    outline: 2px solid currentColor;
    outline-offset: 3px;
}

/* === MOBILE DROPDOWN: FILL VIEWPORT, SCROLLABLE === */
.nav_is_open .main-nav-container {
    min-height: calc(100vh - 100px);
    max-height: calc(100vh - 100px);
    overflow-y: auto;
    background-color: var(--white);
    display: flex;
    flex-direction: column;
    justify-content: space-between;
}

/* === MOBILE FADE-IN === */
@-webkit-keyframes nav-fade-in {
    from {
        opacity: 0;
    }
    to {
        opacity: 1;
    }
}
@keyframes nav-fade-in {
    from {
        opacity: 0;
    }
    to {
        opacity: 1;
    }
}

.nav_is_open .main-nav {
    -webkit-animation: nav-fade-in 0.2s ease forwards;
    animation: nav-fade-in 0.2s ease forwards;
}
.secondary-nav {
    display: block;
    position: relative;
}
.sub-menu:first-child:not(:has(.sub-nav-title)) {
    padding-top: 22px;
}
.sub-menu:last-child:not(:has(.sub-nav-title)) {
    padding-bottom: 25px;
}
@media screen and (min-width: 1200px) {
    .secondary-nav {
        display: block;
        position: absolute;
        top: -55px;
        right: 30px;
        text-transform: uppercase;
    }
    .secondary-nav-ul {
        display: flex;
        justify-content: flex-start;
        align-items: center;
        gap: 35px;
        font-size: 14px;
        padding-top: 25px;
    }
    .secondary-nav a {
        color: var(--black);
    }
}
/* ============================
   DESKTOP-NAV MEGA (ab 1200px)
   ============================ */

@media (min-width: 1200px) {
    .main-nav-container {
        display: flex;
        align-items: flex-end;
        flex-direction: row;
        width: 100%;
        max-width: var(--w15);
    }
    .main-nav {
        display: block;
        background: none;
    }

    /* Restore secondary-nav and reset mobile open-state overrides */
    .main-nav-container .secondary-nav {
        display: block;
    }

    .nav_is_open .main-nav-container {
        min-height: auto;
        max-height: none;
        overflow-y: visible;
        background-color: transparent;
    }

    .nav_is_open .main-nav {
        -webkit-animation: none;
        animation: none;
    }

    .main-nav-ul {
        position: relative;
        display: flex;
        flex-direction: row;
        align-items: stretch;
        gap: 18px;
    }

    .main-nav-ul > li {
        border-bottom: none;
        position: static;
    }
    .main-nav-ul > li:first-child {
        padding-left: 0;
    }
    .main-nav-ul > li > a,
    .main-nav-ul > li > button {
        padding: 12px 16px;
        padding-bottom: 10px;
        width: auto;
        font-size: 20px;
        justify-content: center;
        white-space: nowrap;
        border-bottom: 2px solid transparent;
        transition:
            border-color 0.15s ease,
            color 0.15s ease;
        padding-left: 0;
        padding-right: 0;
        transform: translateY(1px);
    }

    .main-nav-ul > li > button[aria-expanded="true"],
    .main-nav-ul > li > a:hover,
    .main-nav-ul > li > button:hover {
        border-bottom-color: var(--black);
        color: var(--primary-color);
        z-index: 1;
        position: relative;
    }

    .nav-chevron {
        display: none;
    }

    /* Desktop Mega-Panel: absolut unterhalb der Nav-Leiste */
    .sub-menu {
        display: block;
        position: absolute;
        top: 100%;
        left: 0;
        right: 0;
        padding: calc(var(--grid-gap) * 1.5) 0 calc(var(--grid-gap) * 2);
        z-index: 200;
        -moz-columns: 3;
        columns: 3;
        -moz-column-gap: calc(var(--grid-gap) * 3);
        column-gap: calc(var(--grid-gap) * 3);
        -moz-column-fill: balance;
        column-fill: balance;
        min-height: var(--mega-min-height, 0px);
        opacity: 0;
        pointer-events: none;
        transition: opacity 0.18s ease;
        padding-top: 83px;
    }
    .sub-menu:not(:has(.sub-nav-title)) {
        -moz-columns: 1;
        columns: 1;
        min-height: 0;
    }

    .main-nav-ul > li.is-open > .sub-menu {
        opacity: 1;
        pointer-events: auto;
    }
    .main-nav .sub-menu a {
        text-decoration: none;
    }
    /* Hinterleger: fixed unter dem Header, volle Viewport-Breite */
    header::before {
        content: "";
        position: absolute;
        top: 182px;
        left: 0;
        right: 0;
        height: var(--mega-min-height, 0px);
        background-color: var(--white);
        border-top: 1px solid rgba(0, 0, 0, 0.08);
        box-shadow: 0px 20px 20px -10px rgba(0, 0, 0, 0.2);
        z-index: 199;
        opacity: 0;
        pointer-events: none;
        transition: opacity 0.18s ease;
        z-index: 1;
    }

    body.sub_is_open header::before {
        opacity: 1;
    }

    .sub-menu-group {
        -moz-column-break-inside: avoid;
        break-inside: avoid;
        margin-top: 0;
        margin-bottom: 65px;
        padding-top: 0;
    }
    .sub-menu-group:first-child {
        padding-top: 0;
    }
    .sub-nav-title {
        font-size: calc(15 / var(--rootfactor) * 1rem);
        padding-bottom: 5px;
        margin-bottom: 2px;
        color: var(--primary-color);
        border-bottom: 1px solid var(--dark-grey);
    }

    .sub-menu-group > ul li > a {
        font-size: calc(16 / var(--rootfactor) * 1rem);
        padding: 4px 0 7px;
        color: var(--black);
    }
}

@media (prefers-reduced-motion: reduce) {
    .nav-chevron {
        transition: none;
    }

    .main-nav-ul > li > a,
    .main-nav-ul > li > button {
        transition: none;
    }

    .nav_is_open .main-nav,
    .nav_is_open .main-nav-container .secondary-nav {
        -webkit-animation: none;
        animation: none;
    }
}

@media (min-width: 1200px) and (prefers-reduced-motion: reduce) {
    .sub-menu,
    header::before {
        transition: none;
    }
}