style.css

@import url('https://fonts.googleapis.com/css2?family=Josefin+Sans:wght@300;400;600&display=swap');

*{margin: 0;
    padding: 0;
    box-sizing: border-box;}
    
    :root{        
--Desaturated-Red: hsl(0, 36%, 70%);
--Soft-Red: hsl(0, 93%, 68%);
--DG-Red: hsl(0, 6%, 24%);/*
- Linear, 135deg, from hsl(0, 0%, 100%), to hsl(0, 100%, 98%)
- Linear, 135deg, from hsl(0, 80%, 86%), to hsl(0, 74%, 74%)*/    
    }    
    body{
    font-family: 'Josefin Sans', sans-serif;   
    background: url('./images/bg-pattern-desktop.svg') no-repeat;     
    }
main{display: flex;}
.left{
    width: 830px;
    padding: 64px 144px 0px 164px;
}
#mimg{
    display: none;
}
.left header{margin: 0px 0px 134px 0px;}
.left h1{text-transform: uppercase;
        font-size:48px;
        letter-spacing: 32px;
        color: var(--DG-Red);}
.left h1 span{color: var(--Desaturated-Red);
font-weight: 300;}
.left p{color: var(--Desaturated-Red);
        margin: 26px 0px 52px 0px;}
form{ display: flex;
}
form input{ width: 384px;
            height: 56px;
            border-radius: 32px;
            outline: none;
            position: relative;
            border: 1px solid var(--Desaturated-Red);
            padding: 0px 0px 0px 32px;
            }
button{
    position: absolute;
    width: 96px;
    height: 56px;
    border-radius: 32px;
    background-image: linear-gradient(135deg, hsl(0, 80%, 86%), hsl(0, 74%, 74%));
    background-repeat: no-repeat;
    background-position: center;
    margin: 0px 0px 0px 336px;
    outline: none;
    border: none;}
button:hover{
    cursor: pointer;
    background-image: linear-gradient(135deg, hsl(0, 60%, 92%), hsl(0, 76%, 87%));
}
#error{width: 288px;
margin: 16px 0px 0px 32px;
color: red;}
#erroricon{
    position: absolute;
    opacity: 0;
    margin: 16px 0px 0px 300px;}
.right{width: 610px;}
    
     
        .attribution { font-size: 11px; text-align: center; }
        .attribution a { color: hsl(228, 45%, 44%); }
    @media screen and (max-width: 600px) {
main{flex-direction: column;}
.left header img{margin: 32px 0px 0px 48px;
}
.left{margin: 0px 0px 32px 0px;
        padding: 0px 16px;
    width: 375px;}
.left h1{ text-align: center;   
   letter-spacing: 8px;
}
.left p{
    text-align: center;
}
#mimg{display: block;
   
    margin: -96px 16px 64px 0px;}
.right{display: none;}
form input{ width: 300px;}
button{
    margin: 0px 0px 0px 240px;
}
#error{
margin: 16px 0px 0px 0px;}
#erroricon{
    margin: 16px 0px 0px 208px;}

    }