body {
    background-color: #f5f6fa;
}

.navbar {
    box-shadow: 0 2px 6px rgba(0,0,0,.15);
}

.card {
    border-radius: 10px;
}

.table th {
    font-size: .82rem;
    text-transform: uppercase;
    letter-spacing: .04em;
    color: #6c757d;
}

.badge {
    font-size: .78rem;
}

/* Filas de facturas */
.table-success td { color: #155724; }
.table-danger  td { color: #721c24; }

/* Saldo en rojo */
.text-danger.fw-semibold {
    font-size: 1.05em;
}