body {
    background-color: #f8f9fa;
}

.container {
    margin-top: 50px;
}

h2 {
    text-align: center;
    margin-bottom: 30px;
}

.table {
    background-color: #fff;
}

.table th, .table td {
    text-align: center;
    vertical-align: middle;
}

.card {
    background-color: #ffffff;
    border: 1px solid #dee2e6;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
    margin-top: 20px;
}

.card-header {
    background-color: #f8f9fa;
    border-bottom: 1px solid #dee2e6;
    padding: 10px 15px;
}

.card-body {
    padding: 15px;
}

.card-body h4 {
    text-align: center;
    margin-bottom: 20px;
}

.table-bordered {
    margin-top: 20px;
}

img {
    margin-bottom: 10px;
}