/* Schwebende Kopfzeile (ohne sichtbaren Balken) */

.site-header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 100;
    padding: 20px var(--content-padding);
    background: var(--header-bg);
    border: none;
    box-shadow: none;
    pointer-events: none;
    transform: translateY(0);
    transition: transform 0.38s cubic-bezier(0.4, 0, 0.2, 1);
    will-change: transform;
}

.site-header.is-hidden {
    transform: translateY(calc(-100% - 16px));
}

.site-header.is-hidden .site-header__inner {
    pointer-events: none;
}

.site-header__inner {
    pointer-events: auto;
    max-width: var(--content-max);
    width: 100%;
    margin: 0 auto;
    display: grid;
    grid-template-columns: 1fr auto 1fr;
    align-items: center;
    gap: 24px;
}

.site-logo {
    justify-self: start;
    display: inline-flex;
    align-items: center;
    gap: 10px;
    line-height: 1;
}

.site-logo__icon {
    display: block;
    width: 48px;
    height: 48px;
    flex-shrink: 0;
}

.site-logo__wordmark {
    /* Marken-Wortmarke — fest, nicht über typography.css */
    font-family: 'Inter', system-ui, -apple-system, 'Segoe UI', sans-serif;
    font-size: clamp(1.5rem, 4vw, 1.9rem);
    font-weight: 800;
    letter-spacing: -0.04em;
    color: #121212;
    /* Optisch mittig zum Icon (Flex zentriert nur die Zeilenbox, nicht die Schriftmitte) */
    transform: translateY(-0.06em);
}

.site-nav {
    justify-self: center;
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    justify-content: center;
    gap: 6px 28px;
}

.site-nav a {
    color: #5c5c6f;
    transition: color 0.2s ease;
}

.site-nav a:hover {
    color: #121212;
}

.site-nav a[aria-current="page"] {
    color: #121212;
    position: relative;
}

.site-nav a[aria-current="page"]:not([href^="#"]) {
    pointer-events: none;
}

.site-nav a[aria-current="page"]::after {
    content: '';
    position: absolute;
    bottom: -4px;
    left: 0;
    right: 0;
    height: 2px;
    background: #5a4dcc;
    border-radius: 1px;
}

.site-nav--indicator {
    position: relative;
}

.site-nav--indicator a[aria-current="page"]::after {
    display: none;
}

.site-nav__indicator {
    position: absolute;
    bottom: -4px;
    left: 0;
    height: 2px;
    width: 0;
    background: #5a4dcc;
    border-radius: 1px;
    pointer-events: none;
    opacity: 0;
}

.site-header__cta {
    justify-self: end;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 12px 22px;
    color: #fff;
    background: #121212;
    border-radius: 999px;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.18);
    transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.site-header__cta:hover {
    transform: translateY(-1px);
    box-shadow: 0 6px 24px rgba(0, 0, 0, 0.22);
}

/* Platzhalter, damit fixierter Header nicht über späteren Inhalt liegt */
.page-start-spacer {
    height: 88px;
}

@media (max-width: 900px) {
    .site-header {
        padding: 16px var(--content-padding);
    }

    .site-header__inner {
        grid-template-columns: 1fr auto;
        grid-template-rows: auto auto;
    }

    .site-logo {
        grid-column: 1;
        grid-row: 1;
    }

    .site-header__cta {
        grid-column: 2;
        grid-row: 1;
    }

    .site-nav {
        grid-column: 1 / -1;
        grid-row: 2;
        justify-self: stretch;
        gap: 12px 20px;
        padding-top: 12px;
    }

    .page-start-spacer {
        height: 120px;
    }
}

@media (max-width: 520px) {
    .site-nav {
        gap: 10px 16px;
    }
}

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

    .site-header.is-hidden {
        transform: none;
    }
}