html, body {
    height: 100%;
    margin: 0;
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
    background: #f5f5f7;
}

.page {
    display: grid;
    grid-template-columns: 240px 1fr;
    min-height: 100vh;
}

.sidebar {
    min-height: 100vh;
}

.sidebar .nav-link {
    border-radius: 6px;
    margin-bottom: 4px;
}

.sidebar .nav-link.active {
    background: rgba(255, 255, 255, 0.12);
}

.content {
    display: flex;
    flex-direction: column;
}

.card .display-6 {
    font-weight: 600;
}

/* dl-Layout in den Detailkarten etwas kompakter */
.card dl.row dt {
    font-weight: 500;
    color: #6c757d;
}
.card dl.row dd {
    margin-bottom: 0.35rem;
}

/* Tabellenkopf etwas dezenter */
.table thead th {
    background: #fafafa;
    color: #495057;
    font-weight: 600;
    border-bottom: 2px solid #e9ecef;
}