*{
    margin:0;
    padding:0;
    box-sizing:border-box;
    font-family:Arial, Helvetica, sans-serif;
}

body{
    min-height:100vh;
    background:linear-gradient(120deg,#0f2027,#203a43,#2c5364);
    display:flex;
    flex-direction:column;
    align-items:center;
    padding-top:40px;
    color:#fff;
}

h1{
    text-align:center;
    margin-bottom:8px;
    font-size:34px;
}

p{
    text-align:center;
    margin-bottom:30px;
    opacity:0.85;
}

form{
    background:rgba(255,255,255,0.12);
    backdrop-filter:blur(12px);
    padding:30px 35px;
    border-radius:14px;
    width:100%;
    max-width:420px;
    box-shadow:0 20px 40px rgba(0,0,0,0.3);
}

div{
    margin-bottom:15px;
}

label{
    display:block;
    margin-bottom:6px;
    font-size:14px;
    font-weight:600;
}

input{
    width:100%;
    padding:10px 12px;
    border-radius:8px;
    border:none;
    outline:none;
    font-size:14px;
}

input[type="range"]{
    padding:0;
}

input:focus{
    box-shadow:0 0 0 2px rgba(0,255,255,0.6);
}

input[type="color"]{
    height:45px;
    padding:4px;
    cursor:pointer;
}

@media(max-width:480px){
    form{
        padding:25px;
    }

    h1{
        font-size:28px;
    }
}