:root{
  --bg:#000;
  --text:#fff;
  --muted:#9aa0a6;
  --purple-0:#9b7bff;
  --purple-1:#6b4bff;
  --radius:12px;
  --max-w:820px;
}

*{box-sizing:border-box;margin:0;padding:0}

html,body{height:100%;background:var(--bg);color:var(--text);font-family:Inter,system-ui,Arial,sans-serif;-webkit-font-smoothing:antialiased}

.container{
  max-width:var(--max-w);
  margin:6vh auto;
  padding:28px;
  display:flex;
  flex-direction:column;
  gap:20px;
  align-items:center;
}

.hero{
  width:100%;
  text-align:center;
  padding:48px;
  border-radius:var(--radius);
  background:linear-gradient(180deg, rgba(255,255,255,0.02), transparent);
  box-shadow:0 6px 20px rgba(0,0,0,0.6);
}

/* larger title and tagline */
.hero h1{
  font-size:clamp(36px,9vw,72px);
  margin-bottom:10px;
  letter-spacing:-0.02em;
}

.tagline{
  color:var(--muted);
  margin-bottom:22px;
  font-size:18px;
}


.mail-btn{
  background:linear-gradient(180deg,var(--purple-0),var(--purple-1));
  color:#fff;
  box-shadow:0 12px 36px rgba(107,75,255,0.14);
  padding:16px 28px;
  font-size:18px;
  border-radius:14px;
  display:inline-block;
}

.mail-btn:hover{box-shadow:0 16px 48px rgba(107,75,255,0.24);transform:translateY(-2px)}

.mail-btn:active{transform:translateY(1px)}
.mail-btn:focus{outline:3px solid rgba(107,75,255,0.12);outline-offset:3px}


.site-footer{color:var(--muted);font-size:13px;text-align:center;width:100%}

/* Mobile */
@media (max-width:420px){
  .hero{padding:28px}
  .hero h1{font-size:28px}
  .tagline{font-size:15px}
  .mail-btn{width:100%;padding:14px;font-size:16px}
}