/* --- Desktop: schwebende Glass-Navigation ------------------------------- */
.site-header {
    position: sticky;
    top: var(--space-3);
    z-index: 1200;
    padding-inline: var(--space-3);
    margin-bottom: var(--space-4);
}

.header-inner {
    max-width: 1120px;
    margin-inline: auto;
    background: var(--br-glass);
    backdrop-filter: blur(var(--br-glass-blur));
    -webkit-backdrop-filter: blur(var(--br-glass-blur));
    border: 1px solid var(--br-glass-border);
    box-shadow: var(--br-shadow);
    border-radius: var(--br-radius-pill);
    padding: 0.6rem 0.6rem 0.6rem 1.2rem;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: var(--space-3);
}

.brand {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-weight: 800;
    font-size: 1.1rem;
    color: var(--br-text);
}

.brand-icon {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 34px;
    height: 34px;
    border-radius: 50%;
    background: var(--br-primary-very-light);
    color: var(--br-primary);
}

.brand-name {
    display: none;
}

@media (min-width: 480px) {
    .brand-name {
        display: inline;
    }
}

.main-nav {
    display: none;
    align-items: center;
    gap: 0.3rem;
}

@media (min-width: 768px) {
    .main-nav {
        display: flex;
    }
}

.nav-link {
    display: flex;
    align-items: center;
    gap: 0.4rem;
    padding: 0.55rem 0.9rem;
    border-radius: var(--br-radius-pill);
    color: var(--br-muted);
    font-weight: 600;
    font-size: 0.92rem;
    transition: background var(--br-transition-fast), color var(--br-transition-fast);
}

.nav-link:hover {
    background: rgba(25, 118, 243, 0.08);
    color: var(--br-primary-dark);
}

.nav-link.is-active {
    background: var(--br-primary-very-light);
    color: var(--br-primary-dark);
}

.nav-link-danger:hover {
    background: var(--br-danger-bg);
    color: var(--br-danger);
}

.nav-cta {
    background: var(--br-primary);
    color: #fff !important;
    box-shadow: 0 4px 14px rgba(25, 118, 243, 0.28);
}

.nav-cta:hover {
    background: var(--br-primary-dark);
    color: #fff !important;
}

/* --- Mobile: Bottom Navigation (App-artig) ------------------------------- */
.bottom-nav {
    position: fixed;
    left: var(--space-3);
    right: var(--space-3);
    bottom: var(--space-3);
    z-index: 1200;
    background: var(--br-glass-strong);
    backdrop-filter: blur(var(--br-glass-blur));
    -webkit-backdrop-filter: blur(var(--br-glass-blur));
    border: 1px solid var(--br-glass-border);
    box-shadow: var(--br-shadow-lg);
    border-radius: var(--br-radius-lg);
    display: flex;
    justify-content: space-around;
    padding: 0.5rem;
}

@media (min-width: 768px) {
    .bottom-nav {
        display: none;
    }
}

.bottom-nav-link {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.15rem;
    padding: 0.5rem 0.9rem;
    border-radius: var(--br-radius-md);
    color: var(--br-muted);
    font-size: 0.7rem;
    font-weight: 600;
    min-width: 60px;
    transition: background var(--br-transition-fast), color var(--br-transition-fast);
}

.bottom-nav-link.is-active {
    color: var(--br-primary);
    background: var(--br-primary-very-light);
}

/* Platz am Seitenende, damit Inhalte nicht hinter der Bottom-Nav verschwinden */
body.has-bottom-nav {
    padding-bottom: 90px;
}

@media (min-width: 768px) {
    body.has-bottom-nav {
        padding-bottom: 0;
    }
}

.site-footer {
    padding-block: var(--space-4);
    color: var(--br-muted);
    font-size: 0.85rem;
    text-align: center;
}

.site-footer a {
    color: var(--br-muted);
    text-decoration: underline;
}