:root{
    --green: hsl(75, 94%, 57%);
    --white: hsl(0, 0%, 100%);
    --grey-700: hsl(0, 0%, 20%);
    --grey-800: hsl(0, 0%, 12%);
    --grey-900: hsl(0, 0%, 8%);
}

*{
    margin: 0;
    box-sizing: border-box;
    font-size: 14px;
}

body{
    background-color: var(--grey-900);
    height: 100vh;
    display: flex;
    align-items: center;
    font-family: "Inter", sans-serif;
}

article{
    background-color: var(--grey-800);
    margin: 0 auto;
    width: 384px;
    border-radius: 10px;
    padding: 40px;
}

img{
    border-radius: 50%;
}

h1{
    margin-top: 10px;
    color: var(--white);
    font-weight: 700;
    font-size: 24px;
}

h2{
    color: var(--green);
    font-weight: 600;
    font-size: 14px;
}

h3{
    color: var(--white);
    font-weight: 400;
    font-size: 14px;
}

button{
    background-color: var(--grey-700);
    color: var(--white);
    border-radius: 8px;
    height: 45px;
    font-weight: 700;
    font-size: 14px;
    transition: background-color 0.2s ease-in-out;
}

button:hover{
    background-color: var(--green);
    color: var(--grey-900);
    cursor: pointer;
    transition:background-color 0.2s ease-out;
}

button:not(:hover){
    transition: background-color 0.9s ease-out;
}