/* Shahnam und Vincent: Gemeinsame Navigation für US 04-05. */
:root {
    --navigation-height: 99px;
    scroll-padding-top: calc(var(--navigation-offset, var(--navigation-height)) + 16px);
}

.site-navigation {
    color-scheme: dark;
    --background: #071419;
    --background-panel: #152027;
    --accent: #4597a3;
    --accent-soft: rgb(69 151 163 / 14%);
    --text-primary: #fff;
    --text-muted: #7e858a;
    --text-muted2: #b7bec2;
    --border: rgb(255 255 255 / 16%);

    /* Bleibt beim Scrollen sichtbar und behält ihren Platz im Layout. */
    position: sticky;
    top: 0;
    z-index: 100;
    border-top: 3px solid var(--background);
    background: var(--background);
    color: var(--text-primary);
    font-family: system-ui, -apple-system, "Segoe UI", Arial, sans-serif;
    line-height: 1.6;
    box-shadow: 0 4px 16px rgb(0 0 0 / 16%);
}

.site-navigation,
.site-navigation * {
    box-sizing: border-box;
}

.site-navigation__bar {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 24px;
    width: min(1680px, calc(100% - clamp(40px, 10vw, 192px)));
    margin-inline: auto;
}

.site-navigation .brand {
    display: flex;
    align-items: center;
    gap: 20px;
    min-width: 0;
    min-height: calc(var(--navigation-height) - 3px);
    padding-block: 8px;
}

.site-navigation__links ul {
    display: flex;
    align-items: center;
    gap: clamp(16px, 2.5vw, 32px);
    margin: 0;
    padding: 0;
    list-style: none;
}

.site-navigation__links a,
.site-navigation .navigation-disabled {
    display: block;
    padding-block: 10px;
    color: var(--text-muted);
    font-size: 15px;
    font-weight: 600;
    text-decoration: none;
    white-space: nowrap;
}

.site-navigation__links a:hover,
.site-navigation__links a:focus-visible {
    color: var(--text-primary);
}

.site-navigation__links a:focus-visible,
.site-navigation .menu-toggle:focus-visible {
    outline: 2px solid var(--accent);
    outline-offset: 4px;
    border-radius: 4px;
}

.site-navigation .navigation-disabled {
    opacity: 0.5;
    cursor: default;
}

.site-navigation .brand__logo {
    display: grid;
    place-items: center;
    flex-shrink: 0;
    width: 60px;
    height: 60px;
    border-radius: 22px;
    overflow: hidden;
    background: var(--text-primary);
}

.site-navigation .brand__logo img {
    display: block;
    width: 60px;
    height: 60px;
    object-fit: contain;
    border-radius: inherit;
}

.site-navigation .brand__logo:focus-visible {
    outline: 2px solid var(--accent);
    outline-offset: 4px;
}

.site-navigation .brand__text {
    display: flex;
    flex-direction: column;
    gap: 4px;
    min-width: 0;
}

.site-navigation .brand__name {
    color: var(--text-muted);
    font-size: 14px;
    font-weight: 650;
    line-height: 1.4;
    letter-spacing: 0.25em;
}

.site-navigation .brand__label {
    color: var(--text-muted2);
    font-size: 17px;
    font-weight: 600;
    line-height: 1.4;
}

.site-navigation .menu-toggle {
    display: none;
    flex-shrink: 0;
    align-items: center;
    justify-content: center;
    width: 44px;
    height: 44px;
    padding: 0;
    border: 1px solid var(--border);
    border-radius: 10px;
    background: transparent;
    color: var(--text-primary);
    font: inherit;
    font-size: 26px;
    line-height: 1;
    cursor: pointer;
}

.site-navigation .menu-toggle:hover {
    background: var(--accent-soft);
}

.site-navigation__backdrop {
    display: none;
}

/* Der gleiche Grenzwert wird in navigation.js verwendet. */
@media (max-width: 1100px) {
    .site-navigation .menu-toggle {
        display: inline-flex;
    }

    .site-navigation__links {
        display: none;
        position: absolute;
        z-index: 2;
        top: 100%;
        right: 0;
        width: min(360px, 100%);
        max-height: calc(100vh - var(--navigation-offset, var(--navigation-height)));
        max-height: calc(100dvh - var(--navigation-offset, var(--navigation-height)));
        overflow-y: auto;
        overscroll-behavior: contain;
        padding: 16px 24px 24px;
        border: 1px solid var(--border);
        border-top: 0;
        border-radius: 0 0 0 16px;
        background: var(--background);
        box-shadow: -8px 12px 24px rgb(0 0 0 / 20%);
    }

    .site-navigation__links ul {
        align-items: stretch;
        flex-direction: column;
        gap: 4px;
    }

    .site-navigation__links a,
    .site-navigation .navigation-disabled {
        padding: 12px 16px;
        border-radius: 8px;
    }

    .site-navigation__links a:hover {
        background: var(--accent-soft);
    }

    .site-navigation.is-open .site-navigation__links,
    .site-navigation.is-open .site-navigation__backdrop {
        display: block;
    }

    .site-navigation__backdrop {
        position: fixed;
        z-index: 1;
        inset: var(--navigation-offset, var(--navigation-height)) 0 0;
        background: rgb(0 0 0 / 45%);
    }
}

@media (max-width: 700px) {
    :root {
        --navigation-height: 81px;
    }

    .site-navigation__bar {
        gap: 12px;
    }

    .site-navigation .brand {
        gap: 12px;
    }

    .site-navigation .brand__logo {
        width: 66px;
        height: 62px;
        border-radius: 17px;
    }

    .site-navigation .brand__logo img {
        width: 46px;
        height: 46px;
    }

    .site-navigation .brand__name {
        font-size: 12px;
    }

    .site-navigation .brand__label {
        font-size: 13px;
    }
}