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

.rules-list{
    margin-top:15px;
    padding-left:20px;
    line-height:2;
    color:#d6d6d6;
}

.rules-list li::marker{
    color:#3b82f6;
}

body{

background:#050816;
color:white;

padding-bottom:80px;

}

body::before{

content:"";

position:fixed;

inset:0;

background:
radial-gradient(circle at top,#2563eb22,transparent 40%),
radial-gradient(circle at bottom,#f9731622,transparent 40%);

z-index:-1;

}

header{

position:sticky;

top:0;

padding:18px;

backdrop-filter:blur(15px);

background:rgba(255,255,255,.05);

border-bottom:1px solid rgba(255,255,255,.08);

display:flex;

align-items:center;

gap:20px;

}

.back{

text-decoration:none;

color:#3b82f6;

font-weight:600;

}

header h1{

font-size:22px;

}

section{

padding:20px;

}

.card{

background:rgba(255,255,255,.05);

border:1px solid rgba(255,255,255,.08);

border-radius:20px;

padding:20px;

margin-bottom:20px;

backdrop-filter:blur(10px);

transition:.3s;

}

.card:hover{

transform:translateY(-4px);

box-shadow:0 0 25px rgba(59,130,246,.25);

}

.card h2{

margin-bottom:10px;

}

.card p{

line-height:1.7;

color:#d6d6d6;

}

#topBtn{

position:fixed;

bottom:20px;

right:20px;

width:55px;

height:55px;

border:none;

border-radius:50%;

background:#2563eb;

color:white;

font-size:22px;

cursor:pointer;

box-shadow:0 0 20px rgba(37,99,235,.5);

}