@import url('https://fonts.googleapis.com/css2?family=Karla:wght@400;700&display=swap');

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: 'Karla', sans-serif;
    font-size: 16px;
    min-height: 100vh;
    background-color: hsl(204, 43%, 93%);
}
h3{
    color: hsl(179, 62%, 43%);
    font-size: 1.4rem;
    margin-bottom: 20px;
}
h4 {
    margin-bottom: 20px;
    font-size: 1.2rem;
}
li {
    list-style: none;
    color: hsl(204, 43%, 93%);
    font-size: .9rem;
    margin-bottom: 5px;
}

.container {
    max-width: 700px;
    margin: 100px auto;
    display: flex;
    flex-direction: column;
    border-radius: 8px;
    background-color: #fff;
    overflow: hidden;
    box-shadow: 1px 6px 26px -1px rgba(186,169,186,1);
    -webkit-box-shadow: 1px 6px 26px -1px rgba(186,169,186,1);
    -moz-box-shadow: 1px 6px 26px -1px rgba(186,169,186,1);
}
.top, .first, .second {
    padding: 40px;
}

.top strong {
    color: hsl(71, 73%, 54%);
}
.top p {
    color: hsl(218, 22%, 67%);
    margin-top: 20px;
}
.down {
    display: flex;
    color: #fff;
}
.down .first {
    background-color: hsl(179, 62%, 43%);
    flex: 1;
}
.down .first .dolar {
    display: flex;
    width: 100%;
    align-items: center;
    margin-bottom: 10px;
}
.down .first .dolar strong {
    font-size: 2rem;
}
.down .first .dolar p {
    align-self: center;
    margin: 0 10px;
}
.down p {
    margin-bottom: 20px;
    color: hsl(204, 43%, 93%);
    font-size: .9rem;
}
.down .second {
    background-color: #4abebd;
    flex: 1;
}
.sign-btn {
    width: 100%;
    display: block;
    padding: 15px;
    text-align: center;
    background-color: hsl(71, 73%, 54%);
    border-radius: 4px;
    text-decoration: none;
    color: #fff;
    margin-top: 30px;
}

@media screen and (max-width: 715px) {
    h3 {
        font-size: 1.2rem;
    }
    h4 {
        font-size: 1rem;
    }
    .container {
        margin: 50px auto;
        max-width: 90%;
    }
    .container .down {
        flex-direction: column;
    }
}