body {
    font-family: Arial, sans-serif;
    margin: 0;
    background-color: #f4f4f4;
}

header {
    background-color: #003366;
    color: white;
    text-align: center;
    padding: 20px;
}

.items {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 20px;
    padding: 20px;
}

.card {
    background-color: white;
    padding: 15px;
    border-radius: 10px;
    box-shadow: 0 2px 5px rgba(0,0,0,0.1);
    text-align: center;
}

.card h2 {
    margin-top: 0;
}

button {
    background-color: #007BFF;
    color: white;
    border: none;
    padding: 10px 15px;
    border-radius: 5px;
    cursor: pointer;
}

button:hover {
    background-color: #0056b3;
}

/* Admin-Modus: roter Rand um die ganze Seite */
body.admin-mode {
    border: 4px solid #dc3545;
    min-height: 100vh;
    box-sizing: border-box;
}

/* Profil-Leiste im Header */
.user-bar {
    display: flex;
    justify-content: flex-end;
    align-items: center;
    gap: 15px;
    padding: 8px 20px;
    background: #002244;
    color: #ccc;
    font-size: 13px;
    flex-wrap: wrap;
}
.user-bar .badge {
    background: #dc3545;
    color: white;
    padding: 2px 8px;
    border-radius: 10px;
    font-size: 11px;
    font-weight: bold;
}
.user-bar .loan-info {
    color: #ffc107;
}