body {
    background-color: #f8f9fa;
    font-family: Arial, sans-serif;
}

.card {
    border-radius: 10px;
    box-shadow: 0 4px 8px rgba(0, 0, 0, 0.1);
    margin-bottom: 20px;
}

.card-body {
    background: #fff;
    border-radius: 10px;
    padding: 20px;
}

.table-responsive {
    margin-bottom: 20px;
}

.table thead {
    background-color: #343a40;
    color: #fff;
}

h1, h3 {
    color: #343a40;
}

.btn-primary {
    background-color: #007bff;
    border-color: #007bff;
    transition: background-color 0.3s ease;
}

.btn-primary:hover {
    background-color: #0056b3;
}

.btn-secondary {
    background-color: #6c757d;
    border-color: #6c757d;
    transition: background-color 0.3s ease;
}

.btn-secondary:hover {
    background-color: #5a6268;
}