style.css

    * {
        margin: 0;
        padding: 0;
    }

    body {
        font-family: sans-serif;
        line-height: 1.7;
        background-image: linear-gradient(120deg, #84fab0 0%, #8fd3f4 100%);
        width: 80%;
        margin: 1rem auto;
        margin-top: 1rem;
        border: 3px solid grey;
        color: #333;
    }

    #error {
        width: 80%;
        margin: 1rem auto;
        padding: 0.7rem;
        font-size: 1.5rem;
    }

    #title {
        font-size: 2rem;
        text-align: center;
    }

    #p, #q, #msg {
        width: 80%;
        margin: 1rem 8%;
        padding: 0.7rem;
        border-radius: 5px;
        display: block;
        outline: none;
        border: none;
        font-size: 1.3rem;
    }

    .btn {
        margin: 1rem;
        margin-left: 10rem;
        padding: 0.5rem;
        font-size: 1.5rem;
        border-radius: 10px;
        display: inline;
        border: none;
        background-image: linear-gradient(120deg, #a1c4fd 0%, #c2e9fb 100%);
    }

    label {
        margin: 1rem 8%;
        padding: 0.7rem;
        font-size: 1.5rem;
    }

    #output {
        display: grid;
        grid-template-columns: 1fr 1fr;
        justify-content: center;
        grid-gap: 2rem;
        width: 80%;
        margin: 1rem auto;
    }