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

body{
    font-family:"Inter",sans-serif;
    background:linear-gradient(135deg,#eef2ff,#f8fafc);
    min-height:100vh;
    display:flex;
    justify-content:center;
    align-items:center;
    padding:30px;
}

.container{
    width:100%;
    max-width:600px;
    background:white;
    border-radius:24px;
    padding:40px;
    box-shadow:0 20px 60px rgba(0,0,0,.12);
    text-align:center;
}

h1{
    font-size:40px;
    margin-bottom:30px;
}

input[type="color"]{
    width:120px;
    height:60px;
    border:none;
    cursor:pointer;
    background:none;
    margin-bottom:25px;
}

.preview{
    width:180px;
    height:180px;
    margin:0 auto 30px;
    border-radius:20px;
    border:3px solid #ddd;
    background:#4f46e5;
}

.values{
    background:#f8fafc;
    padding:20px;
    border-radius:16px;
    text-align:left;
}

.values p{
    margin:12px 0;
    font-size:18px;
}

.values span{
    font-family:Consolas, monospace;
    font-weight:600;
}
.backButton{
    display:inline-block;
    margin-bottom:25px;
    color:#4f46e5;
    text-decoration:none;
    font-weight:700;
    transition:.25s;
}

.backButton:hover{
    opacity:.7;
}

.description{
    color:#666;
    font-size:18px;
    margin:20px 0 35px;
    line-height:1.7;
}

.info{
    margin-top:60px;
    padding-top:40px;
    border-top:2px solid #eee;
}

.info h2{
    margin:35px 0 15px;
    color:#4f46e5;
    font-size:28px;
}

.info p{
    color:#555;
    line-height:1.8;
    font-size:17px;
}