#toggleDarkMode {
    background-color: #007bff;
    border: none;
    border-radius: 4px;
    color: #fff;
    cursor: pointer;
    position: absolute;
    right: 10px;
    top: 10px;
    padding: 5px 10px;
}

.bubble {
    background-color: #fff;
    border-radius: 4px;
    box-shadow: 0 8px 24px #959da533;
    margin: 20px 0 0;
    padding: 10px 40px 20px;
}

.button-load {
    background-color: #007bff;
    border: none;
    border-radius: 4px;
    color: #fff;
    cursor: pointer;
    font-size: 16px;
    width: 50%;
    margin: 10px;
    padding: 10px 20px;
}

.centered {
    text-align: center;
}

.centered table {
    margin: auto;
}

.columns {
    display: flex;
    justify-content: space-around;
}

.form-container {
    margin-top: 30px;
    display: flex;
    flex-wrap: wrap;
    justify-content: space-around;
}

.form-section {
    background-color: #fff;
    border-radius: 5px;
    box-shadow: 0 5px 15px #0000001a;
    flex-basis: 43%;
    margin: 5px;
    padding: 20px;
}

.left-column {
    margin-right: 25px;
    width: 60%;
}

.right-column {
    width: 38%;
}

.main-container {
    max-width: 1100px;
    width: 83%;
}

.modern-nav {
    background: #007bff;
    border-radius: 4px;
    overflow: hidden;
}

.modern-nav li {
    float: left;
}

.modern-nav li a {
    color: #fff;
    display: block;
    text-align: center;
    text-decoration: none;
    transition: 0.3s;
    padding: 14px 16px;
}

.modern-nav ul {
    display: flex;
    justify-content: center;
    list-style-type: none;
    margin: 0;
    padding: 0;
}

.submit-button {
    margin-bottom: 30px;
    text-align: center;
}

.table-parameters {
    border-collapse: collapse;
    border-spacing: 0;
    width: 100%;
    empty-cells: hide;
}

.table-parameters td {
    font-family: Arial, sans-serif;
    font-size: 14px;
    overflow: hidden;
    word-break: normal;
    border-color: #000;
    border-style: solid;
    border-width: 1px;
    padding: 10px 5px;
}

.table-parameters th {
    font-family: Arial, sans-serif;
    font-size: 14px;
    overflow: hidden;
    word-break: normal;
    font-weight: 700;
    border-color: #000;
    border-style: solid;
    border-width: 1px;
    padding: 10px 5px;
}

.three-columns {
    width: 33%;
}

.three-columns-spacing {
    margin-left: 15px;
    margin-right: 15px;
}

body {
    background-color: #f4f4f4;
    display: flex;
    font-family: Arial, sans-serif;
    justify-content: center;
    line-height: 1.6;
    position: relative;
    margin: 0;
    padding: 20px;
    min-width: 1050px;
}

body.dark-mode #toggleDarkMode,
body.dark-mode .button-load {
    background-color: #555;
}

body.dark-mode #toggleDarkMode:hover,
body.dark-mode .button-load:hover {
    background-color: #3a3a3a;
}

body.dark-mode .bubble {
    background-color: #343333;
    box-shadow: 0 8px 24px #17171793;
    color: #eee;
}

body.dark-mode .form-section {
    background-color: #343333;
    color: #fff;
}

body.dark-mode .main-container {
    background-color: #252525;
}

body.dark-mode .modern-nav li a:hover {
    background: #3a3a3a;
}

body.dark-mode a {
    color: #007bff;
}

body.dark-mode li a {
    color: #fff;
}

body.dark-mode h1,
body.dark-mode h2,
body.dark-mode h3,
body.dark-mode h4 {
    color: #eee;
}

body.dark-mode .table-parameters thead th {
    background: #252525;
}

body.dark-mode .table-parameters #left-header {
    background-color: #252525;
    color: #fff;
}

h1,
h2,
h3,
h4 {
    color: #333;
}

p {
    text-align: justify;
}

select {
    background-color: #f0f0f0;
    border: 1px solid #ccc;
    border-radius: 4px;
    color: #333;
    font-size: 1rem;
    height: 100%;
    width: 100%;
    padding: 1px;
}

th:empty,
td:empty {
    visibility: hidden;
}

.table-parameters th,
.table-parameters td {
    border: 0;
    text-align: left;
    padding: 8px;
}

.table-parameters tbody th {
    font-weight: 700;
    background-color: #f2f2f2;
}

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

.table-parameters thead tr:first-child th:first-child {
    border-top-left-radius: 4px;
}

.table-parameters thead tr:first-child th:last-child {
    border-top-right-radius: 4px;
}

.table-parameters tbody tr:last-child th:first-child,
.table-parameters tbody tr:last-child td:first-child {
    border-bottom-left-radius: 4px;
}

.table-parameters tbody tr:last-child td:last-child {
    border-bottom-right-radius: 4px;
}

#toggleDarkMode:hover,
.button-load:hover,
.modern-nav li a:hover {
    background-color: #0069d9;
}

body.dark-mode,
body.dark-mode select {
    background-color: #252525;
    color: #eee;
}

body.dark-mode .modern-nav,
body.dark-mode .table-parameters tbody th,
body.dark-mode .table-parameters tbody tr:nth-child(even) {
    background: #555;
}

.table-parameters thead th,
.table-parameters #left-header {
    background-color: #007bff;
    color: #fff;
}