body {
    font-family: Arial, sans-serif;
    margin: 0;
    padding: 0;
    background-color: #f8f9fa;
    color: #333;
}

.container {
    max-width: 800px;
    margin: 30px auto;
    padding: 20px;
    background-color: #fff;
    box-shadow: 0 4px 8px rgba(0, 0, 0, 0.1);
    border-radius: 10px;
    text-align: center;
}

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

.table-controls button,
.table-controls input {
    padding: 10px 15px;
    margin: 5px;
    border: 1px solid #ddd;
    border-radius: 5px;
    cursor: pointer;
}

.table-controls button:hover {
    background-color: #007bff;
    color: #fff;
}

#filter-input {
    width: 200px;
}

.test-table {
    width: 100%;
    border-collapse: collapse;
    margin-top: 20px;
}

.test-table th,
.test-table td {
    border: 1px solid #ddd;
    padding: 10px;
    text-align: left;
}

.test-table th {
    background-color: #007bff;
    color: white;
}

.sort-btn {
    background: none;
    border: none;
    color: white;
    cursor: pointer;
    margin-left: 5px;
}

.sort-btn:hover {
    text-decoration: underline;
}

.test-table tbody tr:nth-child(even) {
    background-color: #f2f2f2;
}

.test-table tbody tr:hover {
    background-color: #e9ecef;
}