/* nav.css – Navigation component */

/* ══════════════════════════════════════════════
   NAVIGATION
   ══════════════════════════════════════════════ */

.navbar {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: var(--nav-height);
    z-index: var(--z-nav);
    transition: background-color 0.3s ease, box-shadow 0.3s ease;
    display: flex;
    align-items: center;
}

.navbar--transparent {
    background: var(--nav-bg-transparent);
}

.navbar--transparent.scrolled {
    background: var(--nav-bg-scrolled);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    box-shadow: var(--shadow-sm);
}

.navbar--solid {
    background: var(--nav-bg-solid);
    border-bottom: 1px solid var(--color-divider);
}

.navbar__inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    width: 100%;
    max-width: var(--container-max);
    margin: 0 auto;
    padding: 0 var(--container-padding);
}

.navbar__logo {
    display: flex;
    align-items: center;
    height: 100%;
    min-width: 140px;
    text-decoration: none;
    transition: var(--transition-base);
}

.navbar__logo img {
    height: 56px;
    width: auto;
    object-fit: contain;
    transition: opacity 0.3s ease;
}

/* Dual-Logo-Logik */
.navbar__logo .logo-inverted {
    display: none;
}

/* Transparenter Nav-Modus: Invertiertes (weißes) Logo zeigen */
.navbar--transparent:not(.scrolled) .navbar__logo .logo-default {
    display: none;
}

.navbar--transparent:not(.scrolled) .navbar__logo .logo-inverted {
    display: block;
}

/* Solid oder Scrolled Modus: Standard Logo zeigen */
.navbar--solid .navbar__logo .logo-default,
.navbar--transparent.scrolled .navbar__logo .logo-default {
    display: block;
}

.navbar--solid .navbar__logo .logo-inverted,
.navbar--transparent.scrolled .navbar__logo .logo-inverted {
    display: none;
}

.navbar__links {
    display: flex;
    align-items: center;
    gap: var(--space-5);
    list-style: none;
}

.navbar__links a {
    font-family: var(--font-body);
    font-size: 15px;
    font-weight: var(--weight-medium);
    text-decoration: none;
    position: relative;
    transition: var(--transition-base);
}

.navbar--transparent .navbar__links a {
    color: var(--color-text-on-dark);
}

.navbar--solid .navbar__links a {
    color: var(--color-text);
}

.navbar__links a:hover,
.navbar__links a.active {
    color: var(--color-accent);
}

.navbar__links a::after {
    content: '';
    position: absolute;
    bottom: -4px;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--color-accent);
    transition: width 0.3s ease;
}

.navbar__links a:hover::after,
.navbar__links a.active::after {
    width: 100%;
}

.navbar__cta {
    margin-left: var(--space-3);
}

/* Hamburger */
.navbar__hamburger {
    display: none;
    flex-direction: column;
    justify-content: center;
    gap: 5px;
    width: 28px;
    height: var(--touch-target-min);
    cursor: pointer;
    z-index: calc(var(--z-nav) + 2);
}

.navbar__hamburger span {
    display: block;
    width: 100%;
    height: 2px;
    border-radius: 2px;
    transition: var(--transition-base);
}

.navbar--transparent .navbar__hamburger span {
    background: var(--color-text-on-dark);
}

.navbar--solid .navbar__hamburger span {
    background: var(--color-text);
}

.navbar__hamburger.open span:nth-child(1) {
    transform: rotate(45deg) translate(5px, 5px);
}

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

.navbar__hamburger.open span:nth-child(3) {
    transform: rotate(-45deg) translate(5px, -5px);
}

/* Mobile Nav Overlay */
.mobile-nav {
    position: fixed;
    top: 0;
    right: -100%;
    width: 100%;
    height: 100vh;
    height: 100dvh;
    background: var(--color-primary-dark);
    z-index: calc(var(--z-nav) + 1);
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: var(--space-4);
    transition: right 0.3s ease;
}

.mobile-nav.open {
    right: 0;
}

.mobile-nav a {
    font-family: var(--font-heading);
    font-size: 28px;
    color: var(--color-text-on-dark);
    text-decoration: none;
    transition: var(--transition-base);
}

.mobile-nav a:hover {
    color: var(--color-accent);
}

.mobile-nav__cta {
    margin-top: var(--space-4);
    width: 80%;
    max-width: 300px;
}

.mobile-nav__cta .btn {
    width: 100%;
    text-align: center;
}

.mobile-nav__social {
    display: flex;
    gap: var(--space-4);
    margin-top: var(--space-5);
}

.mobile-nav__social a {
    font-size: 20px;
    color: var(--color-text-on-dark);
}

.mobile-nav__social a:hover {
    color: var(--color-accent);
}

/* Language Switcher (Desktop) */
.lang-switch {
    display: flex;
    align-items: center;
    gap: var(--space-1);
    margin-left: var(--space-3);
}

.lang-switch__link {
    font-family: var(--font-body);
    font-size: 13px;
    font-weight: 600;
    text-decoration: none;
    letter-spacing: 0.05em;
    padding: 4px 8px;
    border-radius: var(--radius-sm);
    transition: var(--transition-base);
}

.navbar--transparent:not(.scrolled) .lang-switch__link {
    color: var(--color-text-on-dark);
}

.navbar--solid .lang-switch__link,
.navbar--transparent.scrolled .lang-switch__link {
    color: var(--color-text);
}

.lang-switch__link:hover {
    background: rgba(0, 0, 0, 0.08);
}

.lang-switch__sep {
    color: var(--color-text-secondary);
    font-size: 12px;
}

/* Language Switcher (Mobile Nav) */
.mobile-nav__lang {
    display: flex;
    gap: var(--space-3);
    margin-top: var(--space-3);
}

.mobile-nav__lang a {
    font-family: var(--font-body);
    font-size: 16px;
    color: var(--color-text-on-dark);
    text-decoration: none;
    opacity: 0.8;
}

.mobile-nav__lang a:hover {
    opacity: 1;
    color: var(--color-accent);
}

@media (max-width: 991px) {

    .navbar__links,
    .navbar__cta {
        display: none;
    }

    .lang-switch {
        display: none;
    }

    .navbar__hamburger {
        display: flex;
    }
}

@media (max-width: 767px) {
    .navbar__logo img {
        height: 60px;
    }
}