styles.css

body {
    font-family: Arial, sans-serif;
    margin: 0;
    padding: 0;
    display: flex;
    justify-content: center;
    align-items: center;
    height: 100vh;
    background-color: #f4f4f4;
}

#app {
    text-align: center;
    background-color: #fff;
    padding: 20px;
    border-radius: 8px;
    box-shadow: 0 4px 8px rgba(0, 0, 0, 0.1);
}

h1 {
    color: #333;
    margin-bottom: 20px;
}

.input-container {
    margin-bottom: 20px;
}

label {
    display: block;
    margin-bottom: 5px;
}

input {
    padding: 10px;
    width: 250px;
    border: 1px solid #ccc;
    border-radius: 4px;
    margin-right: 10px;
}

button {
    padding: 10px 15px;
    background-color: #69b3a2;
    color: #fff;
    border: none;
    border-radius: 4px;
    cursor: pointer;
    transition: background-color 0.3s ease;
}

button:hover {
    background-color: #5a9c8c;
}

#treeContainer {
    display: flex;
    justify-content: center;
    align-items: center;
    flex-direction: column;
    margin-top: 20px;
}

.node {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    background-color: #69b3a2;
    color: #fff;
    border-radius: 50%;
    margin: 5px;
    position: relative;
    transition: transform 0.3s ease;
}

.node:hover {
    transform: scale(1.1);
}

.children {
    display: flex;
    justify-content: center;
    margin-top: 20px;
}

.left, .right {
    margin: 0 10px;
}

.left::before, .right::before {
    content: '';
    position: absolute;
    width: 2px;
    height: 20px;
    background-color: #69b3a2;
}

.left::before {
    left: 50%;
    top: -20px;
}

.right::before {
    right: 50%;
    top: -20px;
}

.left::after, .right::after {
    content: '';
    position: absolute;
    width: 20px;
    height: 2px;
    background-color: #69b3a2;
    top: -2px;
}

.left::after {
    left: 50%;
}

.right::after {
    right: 50%;
}