body {
    font-family: Arial, sans-serif;
    margin: 0;
    padding: 20px;
    background-color: #f4f4f4;
    color: #333;
}

header {
    text-align: center;
    background-color: #4CAF50;
    color: white;
    padding: 20px;
    margin-bottom: 20px;
}

nav {
    text-align: center;
    margin-bottom: 20px;
}

button, select {
    background-color: #4CAF50;
    color: white;
    padding: 10px 20px;
    border: none;
    cursor: pointer;
    margin: 5px;
}

button:hover, select:hover {
    background-color: #45a049;
}

#filter-container {
    margin-bottom: 20px;
    text-align: center;
}

table {
    width: 100%;
    border-collapse: collapse;
    margin-bottom: 20px;
    background-color: white;
}

th, td {
    border: 1px solid #ddd;
    padding: 12px;
    text-align: left;
}

th {
    background-color: #4CAF50;
    color: white;
}

tr:nth-child(even) {
    background-color: #f2f2f2;
}

#pagination {
    text-align: center;
}

#result {
    margin-top: 20px;
    padding: 10px;
    background-color: white
    border: 1px solid #ddd;
}

@media (max-width: 768px) {
    table, thead, tbody, th, td, tr {
        display: block;
    }
    th {
        position: absolute;
        top: -9999px;
        left: -9999px;
    }
    tr {
        border: 1px solid #ccc;
        margin-bottom: 10px;
    }
    td {
        border: none;
        position: relative;
        padding-left: 50%;
    }
    td:before {
        content: attr(data-label) ": ";
        position: absolute;
        left: 6px;
        width: 45%;
        padding-right: 10px;
        white-space: nowrap;
        font-weight: bold;
    }
}