* {
    margin: 0;
    padding: 0;
    font-family: "Roboto", sans-serif;
    box-sizing: border-box;
    outline: none;
}

body {
    background: #0D1B2A;
}

header {
    width: 300px;
    margin: 20px auto 0;
    padding: 20px;
}

main {
    max-width: 375px;
    background: #d7d6c1;
    border-radius: 20px;
    margin: 0 auto 40px;
    padding: 44px 24px 23px;
}

label {
    color: #777;
    font-size: 14px;
    font-weight: 400;
}

select {
    width: 100%;
    height: 48px;
    margin-bottom: 24px;
    border-radius: 4px;
    border: 1px solid #BBB;
    background: #FFF;
    cursor: pointer;
    color: #555;
    font-size: 16px;
    font-weight: 700;
    line-height: 16px;
    appearance: none;
    padding-left: 18px;
}

input {
    width: 100%;
    height: 48px;
    margin-bottom: 24px;
    border-radius: 4px;
    border: 1px solid #BBB;
    background: #FFF;
    cursor: pointer;
    color: #555;
    font-size: 16px;
    font-weight: 700;
    line-height: 16px;
    appearance: none;
    padding-left: 18px;
}

button {
    width: 100%;
    height: 48px;
    border: none;
    border-radius: 5px;
    background: #772FD3;
    color: #FFF;
    font-size: 18px;
    font-weight: 700;
    line-height: 18px;
    cursor: pointer;
}

button:hover {
    opacity: 0.8;
}

button:active {
    opacity: 0.6;
}

section {
    margin-top: 36px;
    border-radius: 20px;
    border: 2.5px solid #772FD3;
    padding: 12px;
    display: flex;
    flex-direction: column;
    align-items: center;
}

.arrow-img {
    margin: 15px 0;
}

.currency-box {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 4px;
}

.currency {
    color: #777;
    font-size: 14px;
    font-weight: 500;
}

.currency-value,
.currency-value-to-convert {
    color: #555;
    font-weight: 700;
    font-size: 20px;

}

@media screen and (max-width: 600px) {

    header {
        display: grid;
        place-items: center;
        margin-top: 0;
    }


    #fundo {
        width: 150px;
    }

    main {
        max-width: 300px;
    }

    label {
        font-size: 12px;
    }

    select,
    input,
    button {
        height: 28px;
        font-size: 12px;
        padding-left: 12px;
        margin-bottom: 12px;
    }

    section {
        margin-top: 12px;
    }

    .arrow-img {
        width: 15px;
    }

    .currency-flag, .currency-flag-to-convert {
        width: 35px;
    }


    .currency-value,
    .currency-value-to-convert, #currency-name {
        font-size: 12px;
    }

}