.card {
    box-shadow: none !important;
    border: 1px solid rgba(0, 0, 0, 0.05) !important;
    border-radius: 8px;
}

.card-footer {
    background-color: #fff !important;
    border-top: none !important; /* opcional, elimina la línea superior */
}

.main-header,
.navbar {
    background: #F4F6F9 !important;
    box-shadow: none !important;
    border-bottom: none !important;
}