body {
        font-family: Arial, sans-serif;
        background: slategrey;
        margin: 20px;
        color: #333;
    }

    h1 {
        text-align: center;
    }
    .top {
        text-align: center;
        margin: 20px auto;
        background-color: cornflowerblue;
        border-radius: 25px;
        padding: 20px;
        color: white;
        max-width: 800px;
    }

    .section {
        background: #fff;
        border-radius: 10px;
        padding: 20px;
        margin: 20px auto;
        max-width: 600px;
        box-shadow: 0 0 10px rgba(0, 0, 0, 0.1);
    }

    label {
        display: block;
        margin-top: 10px;
    }

    input {
        width: 100%;
        padding: 8px;
        margin-top: 5px;
        box-sizing: border-box;
    }

    button {
        margin-top: 15px;
        padding: 10px 20px;
        font-weight: bold;
        border: none;
        background: blue;
        color: white;
        cursor: pointer;
        border-radius: 25px;
    }

    button:hover {
        background: steelblue;
    }

    .result {
        margin-top: 15px;
        padding: 10px;
        background: #e0f7fa;
        border-radius: 5px;
    }