:root{
  --bg:#0e1320;
  --fg:#f4f6fb;
  --muted:#c0c8d9;
  --pri:#3abff8;
  --pri-2:#22d3ee;
  --accent:#1e40af;
  --card-bg:rgba(255,255,255,0.05);
  --card-radius:16px;
  --shadow:0 12px 30px rgba(0,0,0,0.2);
}

body{
  margin:0;
  font-family:system-ui,-apple-system,Segoe UI,Roboto,Inter,sans-serif;
  background:linear-gradient(180deg,#0b1222,#0e1320);
  color:var(--fg);
  line-height:1.7;
}

a{color:var(--pri); text-decoration:none;}
a:hover{color:var(--pri-2);}

.wrap{
  max-width:1140px;
  margin:0 auto;
  padding:clamp(16px,4vw,32px);
}

header{padding:32px 0; text-align:center;}
header h1{font-size:clamp(34px,5vw,52px); margin-bottom:16px;}
header p{color:var(--muted); font-size:clamp(16px,2vw,20px); max-width:900px; margin:0 auto;}

h2{font-size:clamp(24px,3vw,36px); margin-bottom:16px; color:var(--pri);}
h3{font-size:20px; margin-bottom:12px; color:var(--pri-2);}
p, ul{margin-bottom:18px;}
ul{padding-left:20px;}
li{margin-bottom:10px;}

.card{
  background:var(--card-bg);
  border-radius:var(--card-radius);
  padding:32px;
  margin-bottom:32px;
  box-shadow:var(--shadow);
  transition:transform 0.3s ease, box-shadow 0.3s ease;
}
.card:hover{
  transform:translateY(-6px);
  box-shadow:0 20px 40px rgba(34,211,238,0.25);
}

.grid-2{display:grid; grid-template-columns:1fr 1fr; gap:28px;}
.grid-3{display:grid; grid-template-columns:repeat(3,1fr); gap:20px;}
@media(max-width:900px){.grid-2, .grid-3{grid-template-columns:1fr;}}
section{margin-bottom:60px;}

footer{
  padding:32px 0;
  text-align:center;
  color:var(--muted);
  font-size:14px;
  border-top:1px solid rgba(255,255,255,0.1);
}