body {
    background-color: #f8f9fa;
}

.card {
    box-shadow: 0 0.125rem 0.25rem rgba(0, 0, 0, 0.075);
}

.navbar {
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
}

.table th {
    background-color: #f8f9fa;
}

.btn-group {
    box-shadow: 0 1px 2px rgba(0, 0, 0, 0.05);
}

.form-control:focus {
    box-shadow: 0 0 0 0.2rem rgba(0, 123, 255, 0.25);
}

.alert {
    margin-bottom: 1rem;
    border-radius: 0.25rem;
}