/*
========================================
navigation.css
Hauptnavigation

Enthält:
- Desktop Navigation
- Background Dropdown
- Sticky Header
- Mobile Hamburger Menü
========================================
*/

/* Header-Grundfläche */

.site-header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    z-index: 1000;

   /* background: rgba(8, 9, 10, 0.18);*/		/* Navigation-Balken*/
    backdrop-filter: blur(18px);
    -webkit-backdrop-filter: blur(18px);

    transition:
        background 420ms ease,
        box-shadow 420ms ease,
        border-color 420ms ease,
        transform 420ms ease;
}




/* Zustand nach dem Scrollen */
.site-header.is-scrolled {
    background: rgba(255, 255, 255, 0.86);
    border-bottom: 1px solid rgba(16, 18, 20, 0.08);
    box-shadow: 0 18px 60px rgba(0, 0, 0, 0.08);
}

/* Inhalt der Navigation */
/*
==================================================
Navigation Layout
==================================================
*/

.nav-container {
    width: 100%;
    max-width: none;
    margin: 0;

    display: grid;
    grid-template-columns: auto 1fr;
    align-items: center;

    padding: 20px var(--container-padding);

    min-height: 82px;
}

/* Logo */
.nav-logo {

    display: flex;

    align-items: center;

    justify-content: flex-start;

}

.nav-logo img {
    width: 80px;
    height: auto;
    display: block;
}

/* Logo nach Scroll */
.site-header.is-scrolled .nav-logo {
    color: var(--color-dark);
}

/* Desktop Menü */
.nav-menu {

    display:flex;

    justify-content:flex-end;

    align-items:center;

    gap:45px;

}

/* Einzelne Links */
.nav-link,
.nav-dropdown-button {
    position: relative;

    font-size: 14px;
    font-weight: 600;
    color: rgba(255, 255, 255, 0.88);

    background: transparent;
    padding: 8px 0;

    transition:
        color var(--transition-fast),
        opacity var(--transition-fast);
}

/* Link-Unterstreichung */
.nav-link::after,
.nav-dropdown-button::after {
    content: "";
    position: absolute;
    left: 0;
    bottom: 2px;

    width: 0;
    height: 1px;

    background: currentColor;
    transition: width var(--transition-medium);
}

/* Hover */
.nav-link:hover::after,
.nav-dropdown-button:hover::after {
    width: 100%;
}

.nav-link:hover,
.nav-dropdown-button:hover {
    color: var(--color-white);
}

/* Aktive Seite markieren (class="nav-link is-active") */
.nav-link.is-active {
    color: var(--color-white);
}

.site-header.is-scrolled .nav-link.is-active {
    color: var(--color-accent);
}

/* Links nach Scroll */
.site-header.is-scrolled .nav-link,
.site-header.is-scrolled .nav-dropdown-button {
    color: rgba(16, 18, 20, 0.76);
}

.site-header.is-scrolled .nav-link:hover,
.site-header.is-scrolled .nav-dropdown-button:hover {
    color: var(--color-dark);
}

/* Dropdown Wrapper */
.nav-dropdown {
    position: relative;
}

/* Dropdown Button */
.nav-dropdown-button {
    display: inline-flex;
    align-items: center;
    gap: 6px;
}

/* Pfeil */
.dropdown-arrow {
    font-size: 10px;
    transform: translateY(1px);
    transition: transform var(--transition-medium);
}

/* Pfeil rotiert beim Hover */
.nav-dropdown:hover .dropdown-arrow {
    transform: translateY(1px) rotate(180deg);
}

/* Dropdown-Menü */
.nav-dropdown-menu {
    position: absolute;
    top: calc(100% + 14px);
    left: 50%;
    transform: translateX(-50%) translateY(8px);

    min-width: 190px;
    padding: 12px;

    display: flex;
    flex-direction: column;
    gap: 2px;

    background: rgba(255, 255, 255, 0.94);
    border: 1px solid rgba(16, 18, 20, 0.08);
    border-radius: 18px;
    box-shadow: 0 24px 70px rgba(0, 0, 0, 0.16);
    backdrop-filter: blur(24px);
    -webkit-backdrop-filter: blur(24px);

    opacity: 0;
    visibility: hidden;
    pointer-events: none;

    transition:
        opacity var(--transition-medium),
        visibility var(--transition-medium),
        transform var(--transition-medium);
}

/* Unsichtbare Hover-Brücke */
.nav-dropdown-menu::before {
    content: "";
    position: absolute;
    top: -18px;
    left: 0;
    width: 100%;
    height: 18px;
}

/* Dropdown anzeigen */
.nav-dropdown:hover .nav-dropdown-menu,
.nav-dropdown.is-open .nav-dropdown-menu {
    opacity: 1;
    visibility: visible;
    pointer-events: auto;
    transform: translateX(-50%) translateY(0);
}

/* Dropdown Links */
.nav-dropdown-menu a {
    display: block;
    padding: 11px 12px;

    font-size: 14px;
    font-weight: 600;
    color: var(--color-dark);

    border-radius: 12px;

    transition:
        background var(--transition-fast),
        color var(--transition-fast),
        transform var(--transition-fast);
}

/* Dropdown Link Hover */
.nav-dropdown-menu a:hover {
    background: var(--color-gray-light);
    color: var(--color-accent);
    transform: translateX(3px);
}

/* Hamburger Button */
.nav-toggle {
    display: none;
    position: relative;
    z-index: 1002;

    width: 42px;
    height: 42px;

    background: rgba(255, 255, 255, 0.12);
    border-radius: var(--radius-full);
}

/* Hamburger Linien */
.nav-toggle span {
    position: absolute;
    left: 12px;

    width: 18px;
    height: 2px;

    background: var(--color-white);
    border-radius: 99px;

    transition:
        transform var(--transition-medium),
        opacity var(--transition-medium),
        top var(--transition-medium),
        background var(--transition-medium);
}

.nav-toggle span:nth-child(1) {
    top: 14px;
}

.nav-toggle span:nth-child(2) {
    top: 20px;
}

.nav-toggle span:nth-child(3) {
    top: 26px;
}

/* Hamburger Farbe nach Scroll */
.site-header.is-scrolled .nav-toggle {
    background: rgba(16, 18, 20, 0.06);
}

.site-header.is-scrolled .nav-toggle span {
    background: var(--color-dark);
}

/* Hamburger aktiv */
.nav-toggle.is-active span:nth-child(1) {
    top: 20px;
    transform: rotate(45deg);
}

.nav-toggle.is-active span:nth-child(2) {
    opacity: 0;
}

.nav-toggle.is-active span:nth-child(3) {
    top: 20px;
    transform: rotate(-45deg);
}

/*
========================================
Mobile Navigation
========================================
*/

@media (max-width: 1180px) {
    .nav-toggle {
        display: block;
    }

    .nav-menu {
        position: fixed;
        top: 0;
        right: 0;

        width: min(420px, 100%);
        height: 100vh;
        padding: 110px 32px 32px;

        display: flex;
        flex-direction: column;
        align-items: flex-start;
        gap: 4px;

        background: rgba(255, 255, 255, 0.96);
        backdrop-filter: blur(24px);
        -webkit-backdrop-filter: blur(24px);
        box-shadow: -20px 0 80px rgba(0, 0, 0, 0.16);

        transform: translateX(100%);
        transition: transform var(--transition-medium);
    }

    .nav-menu.is-open {
        transform: translateX(0);
    }

    .nav-menu .nav-link,
	.nav-menu .nav-dropdown-button {
    width: 100%;
    min-height: 48px;
    padding: 12px 0;

    display: flex;
    align-items: center;

    font-size: 22px;
    color: var(--color-dark);
    text-align: left;
	}

    .nav-link::after,
    .nav-dropdown-button::after {
        display: none;
    }

    .nav-dropdown {
        width: 100%;
    }

    .nav-dropdown-button {
    justify-content: space-between;
}

    .nav-dropdown-menu {
        position: static;
        transform: none;

        min-width: 100%;
        margin-top: 4px;
        padding: 6px 0 10px 16px;

        background: transparent;
        border: none;
        border-radius: 0;
        box-shadow: none;
        backdrop-filter: none;

        opacity: 1;
        visibility: visible;
        pointer-events: auto;

        display: none;
    }

    .nav-dropdown.is-open .nav-dropdown-menu {
        display: flex;
        transform: none;
    }

    .nav-dropdown-menu::before {
        display: none;
    }

    .nav-dropdown-menu a {
        padding: 9px 0;
        font-size: 16px;
        color: var(--text-secondary);
    }

    .nav-dropdown-menu a:hover {
        background: transparent;
        transform: none;
    }

    .nav-dropdown.is-open .dropdown-arrow {
        transform: rotate(180deg);
    }

    body.nav-open {
        overflow: hidden;
    }
}

@media (max-width: 520px) {
    .nav-container {
        padding-top: 14px;
        padding-bottom: 14px;
    }

    .nav-menu {
        padding: 96px 24px 28px;
    }

    .nav-menu .nav-link,
    .nav-menu .nav-dropdown-button {
        font-size: 20px;
    }
}

.site-header.is-hidden {
    transform: translateY(-100%);
}