styles.css

    /* Import Google Font - Poppins */
    @import url('https://fonts.googleapis.com/css2?family=Poppins:wght@400;500;600;700&display=swap');

    * {
        margin: 0;
        padding: 0;
        box-sizing: border-box;
        font-family: 'Poppins', sans-serif;
    }

    body {
        display: flex;
        align-items: center;
        justify-content: center;
        min-height: 100vh;
        padding: 0 10px;
        background: #675AFE;
    }

    ::selection {
        color: #fff;
        background: #e3ff57;
    }

    .wrapper {
        width: 370px;
        padding: 30px;
        border-radius: 7px;
        background: #fff;
        box-shadow: 7px 7px 20px rgba(0, 0, 0, 0.05);
    }

    .wrapper header {
        font-size: 28px;
        font-weight: 500;
        text-align: center;
    }

    .wrapper form {
        margin: 40px 0 20px 0;
    }

    form :where(input, select, button) {
        width: 100%;
        outline: none;
        border-radius: 5px;
        border: none;
    }

    form p {
        font-size: 18px;
        margin-bottom: 5px;
    }

    form input {
        height: 50px;
        font-size: 17px;
        padding: 0 15px;
        border: 1px solid #999;
    }

    form input:focus {
        padding: 0 14px;
        border: 2px solid #675AFE;
    }

    form .drop-list {
        display: flex;
        margin-top: 20px;
        align-items: center;
        justify-content: space-between;
    }

    .drop-list .select-box {
        display: flex;
        width: 115px;
        height: 45px;
        align-items: center;
        border-radius: 5px;
        justify-content: center;
        border: 1px solid #999;
    }

    .select-box img {
        max-width: 21px;
    }

    .select-box select {
        width: auto;
        font-size: 16px;
        background: none;
        margin: 0 -5px 0 5px;
    }

    .select-box select::-webkit-scrollbar {
        width: 8px;
    }

    .select-box select::-webkit-scrollbar-track {
        background: #fff;
    }

    .select-box select::-webkit-scrollbar-thumb {
        background: #888;
        border-radius: 8px;
        border-right: 2px solid #ffffff;
    }

    .drop-list .icon {
        cursor: pointer;
        margin-top: 30px;
        font-size: 22px;
    }

    form .exchange-rate {
        font-size: 17px;
        margin: 20px 0 30px;
    }

    form button {
        height: 52px;
        color: #fff;
        font-size: 17px;
        cursor: pointer;
        background: #675AFE;
        transition: 0.3s ease;
    }

    form button:hover {
        background: #4534fe;
    }