body {
    font-family: Arial, sans-serif;
    background-color: #f4f4f9;
    margin: 0;
    padding: 0;
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: 100vh;
    flex-direction: column;
}

h2 {
    color: #333;
    margin-bottom: 20px;
}

form {
    margin-bottom: 20px;
}

label {
    display: inline-block;
    width: 150px;
    margin-bottom: 10px;
}

input, textarea, select, button {
    padding: 10px;
    margin-bottom: 10px;
}

button {
    background-color: #4CAF50;
    color: white;
    border: none;
    cursor: pointer;
    text-align: center;
    display: inline-block;
    margin: 5px 2px;
    border-radius: 4px;
}

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

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

table, th, td {
    border: 1px solid black;
}

th, td {
    padding: 15px;
    text-align: left;
}

th {
    background-color: #f2f2f2;
}

@media screen and (max-width: 600px) {
    table, thead, tbody, th, td, tr {
        display: block;
    }

    thead tr {
        display: none;
    }

    tr {
        margin-bottom: 15px;
    }

    td {
        position: relative;
        padding-left: 50%;
        text-align: left;
    }

    td:before {
        position: absolute;
        top: 0;
        left: 6px;
        width: 45%;
        padding-right: 10px;
        white-space: nowrap;
        content: attr(data-label);
        font-weight: bold;
    }
}

.tooltip {
    display: inline-block;
    position: relative;
    cursor: pointer;
    color: blue;
    text-decoration: underline;
}

.modal {
    display: none;
    position: fixed;
    z-index: 1;
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
    overflow: auto;
    background-color: rgb(0,0,0);
    background-color: rgba(0,0,0,0.4);
    padding-top: 60px;
}

.modal-content {
    background-color: #fefefe;
    margin: 5% auto;
    padding: 20px;
    border: 1px solid #888;
    width: 80%;
    max-width: 600px;
}

.close {
    color: #aaa;
    float: right;
    font-size: 28px;
    font-weight: bold;
}

.close:hover,
.close:focus {
    color: black;
    text-decoration: none;
    cursor: pointer;
}

.btn {
    padding: 10px 15px;
    background-color: #4CAF50;
    color: white;
    border: none;
    cursor: pointer;
    text-align: center;
    display: inline-block;
    margin: 5px 2px;
    border-radius: 4px;
}

.btn:hover {
    background-color: #45a049;
}

.btn .icon {
    margin-right: 5px;
}