/* Kopfleiste – eine Leiste, bleibt beim Scrollen oben (Markenfarbe #83c0bc, Schrift Ubuntu) */
.sb-header {
    --sb-brand: #83c0bc;
    --sb-brand-dark: #36716d; /* Text auf Weiß/Hellgrün: Kontrast ≥ 4,5:1 */
    --sb-brand-hover: #6fb1ad; /* Hover auf hellem Türkis, dunkle Schrift bleibt lesbar */
    --sb-on-brand: #1f2d32;   /* Schrift auf Türkis (Kontrast ≥ 6:1) */
    --sb-ink: #2f3437;
    --sb-muted: #61696e;
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    background: rgba(255, 255, 255, 0.92);
    -webkit-backdrop-filter: saturate(180%) blur(12px);
    backdrop-filter: saturate(180%) blur(12px);
    border-bottom: 1px solid rgba(47, 52, 55, 0.08);
    font-family: 'Ubuntu', sans-serif;
    transition: box-shadow .2s ease, background-color .2s ease;
}
.sb-header.is-scrolled {
    background: rgba(255, 255, 255, 0.97);
    box-shadow: 0 6px 24px rgba(31, 45, 50, 0.08);
}
.sb-header__inner {
    display: flex;
    align-items: center;
    gap: 24px;
    height: 76px;
}
.sb-header__logo { flex-shrink: 0; display: flex; align-items: center; }
.sb-header__logo img { height: 40px; width: auto; display: block; }

.sb-header__panel {
    flex: 1;
    display: flex;
    align-items: center;
    justify-content: flex-end;
    gap: 20px;
}

/* Hauptmenü */
.sb-menu { display: flex; gap: 4px; list-style: none; margin: 0; padding: 0; }
.sb-menu__item { position: relative; }
.sb-menu__link {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 10px 14px;
    border-radius: 8px;
    color: var(--sb-ink) !important;
    font-size: 16px;
    font-weight: 400;
    text-decoration: none !important;
    transition: background-color .15s ease, color .15s ease;
}
.sb-menu__link:hover,
.sb-menu__item:focus-within > .sb-menu__link { background: rgba(131, 192, 188, 0.14); }
.sb-menu__link.is-active { color: var(--sb-brand-dark) !important; font-weight: 500; }
.sb-menu__caret { font-size: 10px; opacity: .6; transition: transform .2s ease; }
.sb-menu__item:hover .sb-menu__caret,
.sb-menu__item:focus-within .sb-menu__caret { transform: rotate(180deg); }

/* Untermenü */
.sb-sub {
    position: absolute;
    top: calc(100% + 8px);
    left: 0;
    min-width: 230px;
    list-style: none;
    margin: 0;
    padding: 8px;
    background: #fff;
    border-radius: 12px;
    box-shadow: 0 16px 40px rgba(31, 45, 50, 0.14);
    border: 1px solid rgba(47, 52, 55, 0.06);
    opacity: 0;
    visibility: hidden;
    transform: translateY(6px);
    transition: opacity .15s ease, transform .15s ease, visibility .15s;
}
/* Brücke, damit das Menü beim Hinüberfahren nicht zuklappt */
.sb-sub::before { content: ""; position: absolute; left: 0; right: 0; top: -10px; height: 10px; }
.sb-menu__item:hover > .sb-sub,
.sb-menu__item:focus-within > .sb-sub { opacity: 1; visibility: visible; transform: none; }
.sb-sub a {
    display: block;
    padding: 9px 12px;
    border-radius: 8px;
    color: var(--sb-ink) !important;
    font-size: 15px;
    white-space: nowrap;
    text-decoration: none !important;
}
.sb-sub a:hover, .sb-sub a:focus { background: rgba(131, 192, 188, 0.14); color: var(--sb-brand-dark) !important; }
.sb-sub a.is-active { color: var(--sb-brand-dark) !important; font-weight: 500; }

/* Sprache + Login */
.sb-header__actions { display: flex; align-items: center; gap: 14px; flex-shrink: 0; }
.sb-lang {
    display: inline-flex;
    padding: 3px;
    border-radius: 999px;
    background: rgba(47, 52, 55, 0.06);
}
.sb-lang a {
    padding: 5px 11px;
    border-radius: 999px;
    font-size: 13px;
    font-weight: 500;
    letter-spacing: .04em;
    color: var(--sb-muted) !important;
    text-decoration: none !important;
    transition: background-color .15s ease, color .15s ease;
}
.sb-lang a:hover { color: var(--sb-ink) !important; }
.sb-lang a.is-active { background: #fff; color: var(--sb-ink) !important; box-shadow: 0 1px 3px rgba(31, 45, 50, 0.12); }
.sb-login {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 10px 20px;
    border-radius: 999px;
    background: var(--sb-brand);
    color: var(--sb-on-brand) !important;
    font-size: 15px;
    font-weight: 500;
    text-decoration: none !important;
    transition: background-color .15s ease, transform .15s ease;
}
.sb-login:hover { background: var(--sb-brand-hover); }
.sb-login i { font-size: 13px; }

/* Menü-Knopf (nur mobil) */
.sb-header__toggle {
    display: none;
    margin-left: auto;
    width: 44px;
    height: 44px;
    border: 0;
    border-radius: 10px;
    background: transparent;
    cursor: pointer;
}
.sb-header__toggle:hover { background: rgba(131, 192, 188, 0.14); }
.sb-burger, .sb-burger::before, .sb-burger::after {
    display: block;
    width: 22px;
    height: 2px;
    border-radius: 2px;
    background: var(--sb-ink);
    transition: transform .2s ease, background-color .2s ease;
    position: relative;
    margin: 0 auto;
}
.sb-burger::before, .sb-burger::after { content: ""; position: absolute; left: 0; }
.sb-burger::before { top: -7px; }
.sb-burger::after { top: 7px; }
.sb-header__toggle[aria-expanded="true"] .sb-burger { background: transparent; }
.sb-header__toggle[aria-expanded="true"] .sb-burger::before { transform: translateY(7px) rotate(45deg); }
.sb-header__toggle[aria-expanded="true"] .sb-burger::after { transform: translateY(-7px) rotate(-45deg); }

@media (max-width: 991px) {
    /* backdrop-filter würde das feste Menü-Panel auf Leistenhöhe beschneiden */
    .sb-header { -webkit-backdrop-filter: none; backdrop-filter: none; background: #fff; }
    .sb-header__inner { height: 64px; }
    .sb-header__logo img { height: 34px; }
    .sb-header__toggle { display: block; }
    .sb-header__panel {
        position: fixed;
        top: 64px;
        left: 0;
        right: 0;
        bottom: 0;
        flex-direction: column;
        align-items: stretch;
        justify-content: flex-start;
        gap: 0;
        padding: 12px 20px 32px;
        background: #fff;
        overflow-y: auto;
        opacity: 0;
        visibility: hidden;
        transform: translateY(-8px);
        transition: opacity .2s ease, transform .2s ease, visibility .2s;
    }
    .sb-header.is-open .sb-header__panel { opacity: 1; visibility: visible; transform: none; }
    .sb-menu { flex-direction: column; gap: 0; margin: 0; }
    .sb-menu__item { border-bottom: 1px solid rgba(47, 52, 55, 0.08); }
    .sb-menu__link { width: 100%; padding: 14px 4px; font-size: 18px; border-radius: 0; }
    .sb-menu__link:hover { background: transparent; }
    .sb-menu__caret { display: none; }
    .sb-sub {
        position: static;
        opacity: 1;
        visibility: visible;
        transform: none;
        box-shadow: none;
        border: 0;
        padding: 0 0 10px 12px;
        min-width: 0;
        background: transparent;
    }
    .sb-sub::before { display: none; }
    .sb-sub a { padding: 8px 4px; color: var(--sb-muted) !important; white-space: normal; }
    .sb-header__actions { justify-content: space-between; padding-top: 24px; }
    .sb-login { padding: 12px 24px; }
    body.sb-menu-open { overflow: hidden; }
}

/* Platz für die feste Leiste (sticky geht nicht: Theme setzt overflow-x auf html/body) */
body { padding-top: 76px; }
@media (max-width: 991px) { body { padding-top: 64px; } }

/* Abstände der Seiten an die neue Leiste anpassen (die alte lag über dem Inhalt) */
.top-header { padding-top: 48px !important; margin-top: 0 !important; }
.top-banner.modern { padding-top: 40px !important; }
@media (max-width: 991px) {
    .top-header { padding-top: 32px !important; }
}

@media (prefers-reduced-motion: reduce) {
    .sb-header, .sb-sub, .sb-header__panel, .sb-burger, .sb-burger::before, .sb-burger::after { transition: none; }
}

/* Tastaturfokus in Markenfarbe */
.sb-header a:focus-visible,
.sb-header button:focus-visible {
    outline: 2px solid #83c0bc;
    outline-offset: 2px;
}