body, html {
    margin: 0;
    padding: 0;
    height: 100%;
    font-family: Arial, sans-serif;
}

.container {
    display: flex;
    height: 100%;
}

nav {
    width: 200px;
    background-color: #333;
    color: #fff;
    padding: 15px;
    box-shadow: 2px 0px 5px rgba(0, 0, 0, 0.1);
}

nav ul {
    list-style-type: none;
    padding: 0;
}

nav ul li {
    margin-bottom: 15px;
}

nav a {
    color: #fff;
    text-decoration: none;
    font-size: 18px;
}

main {
    flex-grow: 1;
    padding: 15px;
    background-color: #f8f8f8;
}

main h1 {
    font-size: 24px;
    color: #333;
}

main p {
    color: #666;
}
.tree-level {
    border: 1px solid gray;
    padding:5px;
    background-color: #f3f2f7;
}
.tree-level[data-level="0"] {
    margin-left: 0;
}

.tree-level[data-level="1"] {
    margin-left: 20px;
}

.tree-level[data-level="2"] {
    margin-left: 40px;
}

.tree-level[data-level="3"] {
    margin-left: 60px;
}

.tree-level[data-level="4"] {
    margin-left: 80px;
}

.tree-level[data-level="5"] {
    margin-left: 100px;
}

.tree-level[data-level="6"] {
    margin-left: 120px;
}

.tree-level[data-level="7"] {
    margin-left: 140px;
}

.tree-level[data-level="8"] {
    margin-left: 160px;
}

.tree-level[data-level="9"] {
    margin-left: 180px;
}

.tree-level[data-level="10"] {
    margin-left: 200px;
}

.tree-level[data-level="11"] {
    margin-left: 220px;
}

.tree-level[data-level="12"] {
    margin-left: 240px;
}

.tree-level[data-level="13"] {
    margin-left: 260px;
}

.tree-level[data-level="14"] {
    margin-left: 280px;
}

.tree-level[data-level="15"] {
    margin-left: 300px;
}
.remove-btn,.newrow-btn,.new-option-btn, .remove-option-btn {
    background-color: rgb(239, 239, 239);
    border-radius: 3px;
    padding:1px 9px;
    background-color: rgb(240, 240, 240);
    font-size:  13.3333px;
    border: 1px solid black;
    margin:0px 5px;
}
.hidden-select {
    display: none;
}
.notification {
    display: none;
    position: fixed;
    bottom: 0;
    left: 0;
    width: 100%;
    background-color: #4CAF50;
    color: white;
    text-align: center;
    padding: 1rem;
    font-weight: bold;
    z-index: 1000;
}
select#extensions {
    min-width: 300px;
    min-height: 140px;
}
#createForm, #createExtForm {
    display: none; /* Hide the form initially */
}

.non-editable {
    display: inline-block;
    margin: 0 5px;
    padding: 2px 4px;
    background-color: #e9ecef;
    border-radius: 4px;
}
#dynamicTextarea {
    max-width: 500px;
    min-height: 200px;
    background: white;
    border: 1px solid black;
    padding:5px;
}
table.table tr td {
    border: 1px solid black;
}