:root{
  --bg:#0b0f1a;
  --bg2:#101828;
  --text:#e5e7eb;
  --muted:#9aa4b2;
  --accent:#3FAFBB; /* acento suave */
  --accent-2:#6ee7f3;
  --card:#121827cc;
  --ring:#ffffff22;
}

*{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(--text);
  background: radial-gradient(1200px 600px at 70% -10%, #1a2a44 0%, var(--bg) 60%),
              radial-gradient(900px 500px at 10% 110%, #0f3c4b 0%, var(--bg2) 50%);
  overflow:hidden;
}

/* Canvas animado */
#bg{
  position:fixed; inset:0;
  width:100%; height:100%; display:block; z-index:0;
}

/* Layout */
.container{
  position:relative; z-index:1;
  min-height:100%;
  display:grid;
  grid-template-rows:auto 1fr auto;
  align-items:center;
  padding:32px 20px;
}

/* Marca */
.brand{
  display:flex; align-items:center; gap:16px; justify-content:center;
  margin-bottom:18px; text-align:center;
}
.logo{
  font-weight:800; font-size:28px; letter-spacing:1.2px;
  text-transform:lowercase;
  background:linear-gradient(90deg, #fff, var(--accent-2));
  -webkit-background-clip:text; background-clip:text; color:transparent;
  filter:drop-shadow(0 8px 24px rgba(0,0,0,.25));
}
.tag{ color:var(--muted); font-size:14px }

/* Cartão */
.card{
  margin:0 auto;
  width:100%; max-width:640px;
  padding:32px 28px;
  background:linear-gradient(180deg, rgba(255,255,255,.06), rgba(255,255,255,.02));
  backdrop-filter:blur(10px);
  border:1px solid var(--ring);
  border-radius:20px;
  box-shadow:0 30px 80px rgba(0,0,0,.35);
  text-align:center;
}
h1{margin:0 0 10px; font-size:30px}
p{margin:0 0 18px; line-height:1.7; color:#dde2ea}

.cta{display:flex; gap:12px; justify-content:center; flex-wrap:wrap; margin-top:14px}
.btn{
  display:inline-flex; align-items:center; justify-content:center;
  padding:12px 16px; border-radius:12px; text-decoration:none; font-weight:600;
  border:1px solid var(--ring); transition:transform .08s ease, background .2s ease, border-color .2s ease;
  will-change:transform;
}
.btn:active{ transform:translateY(1px) }
.btn.primary{ background:linear-gradient(90deg, var(--accent), var(--accent-2)); color:#05222b; border-color:transparent }
.btn.primary:hover{ filter:brightness(1.05) }
.btn.ghost{ color:var(--text); background:#ffffff10 }
.btn.ghost:hover{ background:#ffffff15 }

.info{
  margin-top:18px; display:flex; gap:8px; justify-content:center; align-items:center;
  color:var(--muted); font-size:13px;
}
.dot{ width:8px; height:8px; border-radius:999px; background:radial-gradient(circle at 40% 40%, #9ff, var(--accent)); box-shadow:0 0 12px var(--accent) }

.footer{ margin-top:18px; text-align:center; color:var(--muted); font-size:12px }

/* Responsivo */
@media (min-width:768px){
  h1{font-size:34px}
  .card{padding:40px 36px}
}