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

body{
    
    background-color: rgb(122, 122, 254);
    height: 100vh;
    display: flex;
    justify-content: center;
    align-items: center;
    font-family: cursive;
}

.main-container{
    max-width: 450px;
    width: 90%;
    background-color: white;
    box-shadow: 0 0 20px rgba(111, 100, 100, 0.726);
    border-radius: 0.5rem;
}

.header-div{
    display: flex;
    justify-content: space-between;
    padding: 1em 1.5em;
}

h3{
    font-size: 1.1rem;
}

h1{
    font-size: 2rem;
    text-align: center;
    line-height: 2;
}

input{
    display: block;
    width: 75%;
    margin: auto;
    height: 40px;
    font-size: 0.85rem;
    font-family: inherit;
    padding-left: 10px;
    margin-top: 1em;
}

.btn{
    display: block;
    width: 50%;
    padding: 1em;
    margin: 2.1em auto;
    color: white;
    border: none;
    border-radius: 0.35rem;
    cursor: pointer;
    box-shadow: 0px 0px 2px rgba(72, 72, 72, 0.34);
    transition: 0.5s;
    background-color: rgb(6, 92, 6);  
}

.replay{
    background-color: red;
    display: none;
}

.btn:hover,.btn:focus, .replay:hover,.replay:focus{
 transform: scale(1.05);
}

@media (min-width: 600px){
    h1{
        font-size: 1.8rem;
        text-align: center;
        line-height: 2;
    }
}