.parent {

    display: flex;
    justify-content: center;
    align-items: center;
    height: 100vh;
}

.main {
    background-color: #ffffff;
    
    padding: 2rem;
    border-radius: 15px;
    /* box-shadow: 0 4px 10px rgba(0, 0, 0, 0.1); */
    text-align: center;
}

h1 {
    font-size: 2rem;
    margin-bottom: 0.5rem;
}

p {
    font-size: 1rem;
    color: #666;
    
    margin-bottom: 1.5rem;
}

.shape-selector {
    margin-bottom: 1.5rem;
}

label {
    font-size: 1rem;
    margin-right: 0.5rem;
}

select {
    padding: 0.5rem;
    font-size: 1rem;
    border-radius: 5px;
    border: 1px solid #ccc;
}

.shape-formula {
    font-size: 1rem;
    font-family: "Courier New", Courier, monospace;
    background: #f9f9f9;
    padding: 0.5rem;
    border-radius: 5px;
    border: 1px solid #ddd;
    margin-bottom: 1.5rem;
}

.input-fields {
    margin-bottom: 1.5rem;
}

.input-fields input {
    display: flex;
    flex-direction: column;
    width: 300px;
    padding: 0.5rem;
    margin: 0.5rem 0;
    border-radius: 5px;
    border: 1px solid #ccc;
    font-size: 1rem;
}

button {
    background: #3207f4;
    color: #fff;
    border: none;
    padding: 0.75rem 1.5rem;
    font-size: 1rem;
    border-radius: 5px;
    cursor: pointer;
    width: 100%;
    transition: background 0.3s ease;
}

button:hover {
    background: #323232;
}

.result {
    margin-top: 1.5rem;
    font-size: 1.2rem;
    font-weight: bold;
    color: #007bff;
}