body {
    font-family: Arial, sans-serif;
    margin: 0;
    padding: 0;
}
.center-text {
    text-align: center;
    margin: 20px 0;
}
.table-container {
    display: flex;
    justify-content: center;
    margin: 20px 0;
}
table {
    margin: auto;
    border-collapse: collapse;
    width: 100%;
    max-width: 21cm;
}
th, td {
    border: 1px solid black;
    padding: 5px;
    text-align: left;
}
th {
    background-color: #f2f2f2;
}
.button-container {
    text-align: center;
    margin-top: 20px;
}
.spaced-inputs {
    display: flex;
    flex-direction: column;
    gap: 5px;
}
.column-1, .column-2, .column-5 {
    width: 16%;
}
.column-3, .column-4 {
    width: 10%;
}
.column-6 {
    width: 30%;
}
.modal {
    display: none;
    position: fixed;
    z-index: 1;
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
    overflow: auto;
    background-color: rgba(0,0,0,0.4);
}
.modal-content {
    background-color: #fefefe;
    margin: 15% auto;
    padding: 20px;
    border: 1px solid #888;
    width: 80%;
}
.close {
    color: #aaa;
    float: right;
    font-size: 28px;
    font-weight: bold;
}
.close:hover,
.close:focus {
    color: black;
    text-decoration: none;
    cursor: pointer;
}