:root{
  --bg:#070812;
  --card:#0f1720;
  --muted:#9aa4b2;
  --accent:#00e6ff;
}
*{box-sizing:border-box}
html,body{height:100%}
body{
  margin:0;
  font-family:Inter,system-ui,-apple-system,"Segoe UI",Roboto,Helvetica,Arial; 
  background:linear-gradient(180deg,var(--bg),#05060a);
  color:#e6eef6;
  display:flex;
  align-items:center;
  justify-content:center;
  padding:40px 16px;
}
.container{
  width:100%;
  max-width:880px;
  text-align:center;
}
.logo{height:64px;filter:brightness(1)}
.title{font-weight:700;margin:12px 0 6px;font-size:2.2rem;letter-spacing:0.6px}
.tagline{color:var(--muted);margin:0 0 24px}
.card{background:linear-gradient(180deg, rgba(255,255,255,0.02), rgba(255,255,255,0.01));
  border:1px solid rgba(255,255,255,0.04);
  padding:28px;border-radius:12px;margin:0 auto 20px;max-width:680px}
.card h2{margin:0 0 8px;font-weight:500}
.card p{color:var(--muted);margin:0 0 16px}
.signup{display:flex;gap:8px;justify-content:center;align-items:center}
.signup input{padding:12px 14px;border-radius:8px;border:1px solid rgba(255,255,255,0.06);background:transparent;color:inherit;min-width:240px}
.signup button{padding:12px 18px;border-radius:8px;border:0;background:var(--accent);color:#012;cursor:pointer;font-weight:600}
.features{list-style:none;padding:0;margin:8px 0 28px;display:flex;gap:18px;justify-content:center;color:var(--muted);font-size:0.95rem}
.footer{color:var(--muted);font-size:0.85rem}

@media(max-width:520px){
  .signup{flex-direction:column}
  .signup input{width:100%;min-width:0}
  .features{flex-direction:column;gap:8px}
}