:root{
  --bg:#1a1028;
  --card:#251447;
  --accent:#8b5cf6;
  --accent-2:#4c1d95;
  --text:#f3eefe;
  --muted:#c4b5fd;
  --line:rgba(139,92,246,.28);
  --gradient:linear-gradient(135deg,#8b5cf6,#4c1d95);
}
*{box-sizing:border-box}
html,body{margin:0;padding:0;background:var(--bg);color:var(--text);font-family:Segoe UI,Tahoma,Geneva,Verdana,sans-serif;line-height:1.65}
a{color:var(--muted);text-decoration:none}
a:hover{color:#fff}
.sub-header{
  position:sticky;top:0;z-index:50;
  display:flex;align-items:center;justify-content:space-between;gap:12px;
  padding:12px 16px;background:rgba(18,10,28,.94);
  border-bottom:1px solid var(--line);backdrop-filter:blur(8px);
}
.sub-header .logo{display:flex;align-items:center}
.sub-header .logo img{height:42px;width:auto;display:block}
.sub-header .actions{display:flex;gap:8px}
.btn{
  display:inline-flex;align-items:center;justify-content:center;
  min-height:38px;padding:0 16px;border-radius:8px;font-size:13px;font-weight:700;
}
.btn-outline{border:1px solid var(--accent);color:var(--muted);background:transparent}
.btn-outline:hover{background:rgba(139,92,246,.18);color:#fff}
.btn-solid{background:var(--gradient);color:#fff;border:1px solid #5b21b6}
.btn-solid:hover{color:#fff;filter:brightness(1.08)}
.sub-main{max-width:900px;margin:0 auto;padding:28px 16px 80px}
.sub-main h1{margin:0 0 14px;font-size:28px;color:#e9e4ff}
.sub-main h2{margin:28px 0 10px;font-size:18px;color:var(--muted)}
.sub-main p{margin:0 0 12px;color:rgba(243,238,254,.92)}
.sub-main ul{margin:0 0 12px;padding-left:20px}
.sub-main li{margin-bottom:6px}
.promo-grid{
  display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:12px;margin-top:18px;
}
.promo-card{
  display:block;padding:18px 16px;border-radius:12px;
  background:linear-gradient(160deg,#2a1842,#1a1028);
  border:1px solid var(--line);color:#fff;font-weight:700;
}
.promo-card span{display:block;font-size:22px;margin-bottom:8px}
.promo-card:hover{border-color:var(--accent);transform:translateY(-2px);transition:.2s}
.sub-footer{
  border-top:1px solid var(--line);padding:28px 16px 90px;background:#120a1c;
}
.sub-footer-inner{
  max-width:1100px;margin:0 auto;
  display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:18px;
}
.sub-footer h4{margin:0 0 10px;color:var(--muted);font-size:13px;text-transform:uppercase}
.sub-footer a{display:block;margin-bottom:8px;font-size:13px;color:rgba(243,238,254,.85)}
.sub-footer a:hover{color:#fff}
.sub-copy{max-width:1100px;margin:22px auto 0;font-size:12px;color:rgba(196,181,253,.7)}
.mobile-bar{
  position:fixed;left:0;right:0;bottom:0;z-index:60;
  display:none;gap:8px;padding:10px 12px;
  background:rgba(18,10,28,.96);border-top:1px solid var(--line);
}
.mobile-bar .btn{flex:1}
@media (max-width:900px){
  .sub-footer-inner{grid-template-columns:repeat(2,minmax(0,1fr))}
}
@media (max-width:640px){
  .sub-main{padding-top:20px}
  .sub-main h1{font-size:24px}
  .promo-grid{grid-template-columns:1fr}
  .mobile-bar{display:flex}
  .sub-header .actions{display:none}
  .sub-footer{padding-bottom:100px}
}