:root{
    --cyan: hsl(179, 62%, 43%);
    --light-cyan: hsla(179, 62%, 43%, 0.8);
    --yellow: hsl(71, 73%, 54%);
    --gray: hsl(204, 43%, 93%);
    --blue: hsl(218, 22%, 67%);
}
*{
    box-sizing: border-box;
}
body{
    background-color: var(--gray);
    font-family: 'Karla', sans-serif;
    font-size: 16px;
    display: grid;
    place-items: center;
    height: 100vh;
}
.container{
    max-width: 768px;
    margin: 1rem;
    background-color: #fff;
    border-radius: 10px;
    display: grid;
    grid-template-columns: 1fr 1fr;
}
.container > div{
    padding: 2rem;
}
.join{
    grid-column: 1/3;
}
.join .title{
    color: var(--cyan);
    font-size: 1.5rem;
}
.join .subtitle{
    color: var(--yellow);
    font-size: 1.125rem;
}
.join p{
    color: var(--blue);
    line-height: 1.6rem;
    letter-spacing: 0.4px;
}
.subscription{
    background-color: var(--cyan);
    border-radius: 0 0 0 10px;
}
.subs-title{
    color: #fff;
    font-size: 1.25rem;
}
.m-rate{
    color: var(--gray);
    display: flex;
    align-items: center;
    font-size: .9rem;
}
.rate{
    color: #fff;
    font-size: 1.7rem;
    font-weight: 700;
    margin-right: 1rem;
}
.subscription p{
    color: var(--gray);
}
.button{
    color: var(--gray);
    text-decoration: none;
    font-size: 1.5rem;
    font-weight: 700;
    margin-top: 2rem;
    padding: 1rem;
    background-color: var(--yellow);
    width: 100%;
    display: flex;
    justify-content: center;
    border-radius: 10px;
    outline:none;
    box-shadow: 0 0 5px var(--blue);
}
.button:focus{
    box-shadow: 0 0 0 3px #fff,
                0 0 0 5px var(--yellow);
}
.why{
    background-color: var(--light-cyan);
    border-radius: 0 0 10px 0;
}
ul{
    padding-inline-start: 0;
    list-style: none;
}
.why li{
    color: var(--gray);
    line-height:1.5rem;
}
.attribution {
    font-size: 10px;
}
.attribution a {
    color: #3e52a3;
    text-decoration: none;
}
@media screen and (max-width:768px){
    .container{
        display: flex;
        flex-direction: column;
    }
    .subscription{
        border-radius:0;
    }
    .why{
        border-radius:0 0 10px 10px;
    }
}

@media screen and (max-width:576px){
    .container{
        margin: auto;
        min-width: 356px;
    }
    .container > div{
        padding: 1rem;
    }
}