:root{
  --ink:#fff;
  --muted:#cfc3ff;
}
*{box-sizing:border-box}
html,body{height:100%}
body{
  margin:0;
  font-family:Inter,system-ui,-apple-system,Segoe UI,Roboto,Arial,sans-serif;
  color:var(--ink);
  background:
    radial-gradient(1200px 600px at 15% -10%, rgba(255,255,255,.08), transparent 45%),
    radial-gradient(1000px 540px at 110% -5%, rgba(255,255,255,.06), transparent 45%),
    linear-gradient(180deg, #1a1230 0%, #2a1658 45%, #4a1f97 100%);
}

/* brand lockup (top-left) */
.brand{
  position:absolute; top:28px; left:28px;
  display:flex; align-items:center; gap:12px;
}
.brandmark{height:72px; width:auto; filter: drop-shadow(0 6px 20px rgba(0,0,0,.5));}
.wordmark{font-weight:900; font-size:48px; letter-spacing:.2px}

/* hero layout */
.hero{max-width:1100px; margin:0 auto; padding:140px 20px 80px; text-align:center}
.headline{
  font-weight:900;
  font-size:clamp(44px,8.8vw,120px);
  line-height:1.02;
  margin:90px 0 16px;
  text-shadow: 0 6px 24px rgba(0,0,0,.35);
}
.sub{
  color:var(--muted);
  font-size:clamp(16px,2.3vw,30px);
  margin:0 0 48px;
}

/* email input + button */
.signup{
  display:flex; align-items:center; justify-content:center; gap:16px; flex-wrap:nowrap;
}
.input-wrap{
  width:min(680px,82vw); height:72px;
  border-radius:22px; padding:4px;
  background: linear-gradient(180deg, rgba(255,255,255,.16), rgba(255,255,255,.06));
  border: 1px solid rgba(255,255,255,.26);
  box-shadow: inset 0 1px 0 rgba(255,255,255,.07), 0 18px 50px rgba(0,0,0,.35);
  backdrop-filter: blur(8px);
  display:flex; align-items:center;
}
.input-wrap input{
  width:100%; height:100%;
  border:0; outline:0;
  background: transparent;
  color:#fff;
  padding:0 22px;
  font-size:20px;
}
.input-wrap input::placeholder{color: rgba(255,255,255,.78);}

.cta{
  height:72px; padding:0 28px;
  border:none; border-radius:22px; cursor:pointer;
  background:#fff; color:#1b0b3a;
  font-weight:800; font-size:22px;
  box-shadow: 0 14px 36px rgba(0,0,0,.35);
  transition: transform .06s ease, filter .12s ease;
}
.cta:hover{ transform: translateY(-1px); filter: brightness(1.03); }

@media (max-width:820px){
  .brand{left:18px; top:18px}
  .brandmark{height:56px}
  .wordmark{font-size:34px}
  .headline{margin-top:120px}
  .signup{flex-direction:column; gap:12px}
  .cta{width:min(680px,82vw)}
}