body {
    background-color: #f8f9fa;
}

.sidebar {
    box-shadow: 2px 0 5px rgba(0,0,0,0.1);
}

.card {
    border: none;
    box-shadow: 0 0.125rem 0.25rem rgba(0, 0, 0, 0.075);
    border-radius: 10px;
}

.card-header {
    background-color: transparent;
    border-bottom: 1px solid rgba(0,0,0,0.05);
    font-weight: 600;
}