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

.navbar {
    background-color: #ffffff;
    border-bottom: 1px solid #e7e7e7;
}

.card {
    border: 1px solid #e7e7e7;
    border-radius: 8px;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
}

.card-img-top {
    border-radius: 8px 8px 0 0;
    height: 200px;
}

.card-body {
    padding: 20px;
}

.btn-primary, .btn-danger, .btn-success {
    border-radius: 4px;
}

.btn-primary {
    background-color: #007bff;
    border-color: #007bff;
}

.btn-danger {
    background-color: #dc3545;
    border-color: #dc3545;
}

.btn-success {
    background-color: #28a745;
    border-color: #28a745;
}

.btn-primary:hover, .btn-danger:hover, .btn-success:hover {
    opacity: 0.8;
}

.table {
    margin-top: 20px;
}

.table thead th {
    background-color: #f7f7f7;
    border-bottom: 2px solid #e7e7e7;
}

.table tbody td {
    vertical-align: middle;
}

.table tbody td a {
    text-decoration: none;
}

.table tbody td a:hover {
    text-decoration: underline;
}