body {
    display:flex;
    justify-content: center;
    padding-top:50px;
    background-color: #50858B;
    margin: 0;
}

.geometry-card {
    background-color:#A1D2CE;
    padding:25px;
    border-radius: 12px;
    box-shadow: 0 8px 20px rgba(0,0,0,0.2);
    display:flex;
    align-items: center;
    gap: 12px;
}

label {
    font-weight: bold;
    color:#2C4A4D;
}

input, select {
    padding: 10px;
    border: 2px solid #5497A7;
    border-radius: 6px;
}

button:hover {
    background-color: #5497A7;
}

#resultDisplay {
    margin-left: 20px;
    font-size:1.2rem;
    font-weight: bold;
    color:white;
}