:root{
  --bg:#0f1724;
  --card:#0b1220;
  --accent:#7dd3fc;
  --muted:#94a3b8;
  --glass: rgba(255,255,255,0.03);
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial;
}

*{box-sizing:border-box}
html,body{height:100%}
body{
  margin:0;
  background:
    radial-gradient(1200px 600px at 10% 10%, rgba(125,211,252,0.06), transparent 10%),
    radial-gradient(900px 400px at 90% 90%, rgba(124,58,237,0.04), transparent 8%),
    var(--bg);
  color:#e6eef8;
  display:flex;
  align-items:center;
  justify-content:center;
  padding:32px;
  -webkit-font-smoothing:antialiased;
}

.panel{
  width:100%;
  max-width:920px;
  background: linear-gradient(180deg, rgba(255,255,255,0.02), rgba(255,255,255,0.01));
  border-radius:16px;
  padding:36px;
  box-shadow: 0 10px 30px rgba(2,6,23,0.6);
  display:grid;
  grid-template-columns: 1fr 360px;
  gap:28px;
  align-items:center;
  backdrop-filter: blur(6px);
  border: 1px solid rgba(255,255,255,0.03);
}

.logo{
  font-weight:700;
  letter-spacing:2px;
  color:var(--accent);
  font-size:20px;
  margin-bottom:6px;
}
h1{
  margin:0 0 10px 0;
  font-size:34px;
  line-height:1.05;
  color:#f8fafc;
}
p.lead{
  margin:0 0 18px 0;
  color:var(--muted);
  font-size:15px;
}
ul.features{
  margin:16px 0 0 0;
  padding:0;
  list-style:none;
  display:grid;
  gap:8px;
}
ul.features li{
  font-size:14px;
  color:var(--muted);
  display:flex;
  gap:10px;
  align-items:flex-start;
}
.dot{
  width:10px;
  height:10px;
  border-radius:50%;
  background:var(--accent);
  margin-top:6px;
  flex:0 0 10px;
}

.subscribe{
  background:var(--card);
  border-radius:12px;
  padding:22px;
  box-shadow: inset 0 1px 0 rgba(255,255,255,0.01);
}
.small{
  font-size:13px;
  color:var(--muted);
  margin-bottom:12px;
}
form{display:flex; gap:8px}
input[type="email"]{
  flex:1;
  padding:12px 14px;
  border-radius:8px;
  border:1px solid rgba(255,255,255,0.04);
  background:var(--glass);
  color:inherit;
  font-size:14px;
  outline:none;
}
button{
  padding:12px 14px;
  border-radius:8px;
  border:0;
  background:linear-gradient(180deg,var(--accent),#38bdf8);
  color:#022;
  font-weight:700;
  cursor:pointer;
  min-width:110px;
}
footer{
  grid-column:1/-1;
  display:flex;
  justify-content:space-between;
  align-items:center;
  margin-top:18px;
  color:var(--muted);
  font-size:13px;
}
@media (max-width:830px){
  .panel{grid-template-columns:1fr; padding:20px}
  .subscribe{order:2}
}