:root{
  --bg:#0f1724;
  --card:#0b1220;
  --accent:#7dd3fc;
  --muted:#94a3b8;
  --text:#e6eef8;
}

*{box-sizing:border-box;margin:0;padding:0}
html,body,#root{height:100%}
body{
  font-family:Inter, system-ui, -apple-system, 'Segoe UI', Roboto, 'Helvetica Neue', Arial;
  background: linear-gradient(180deg, var(--bg) 0%, #071028 100%);
  color:var(--text);
  -webkit-font-smoothing:antialiased;
  -moz-osx-font-smoothing:grayscale;
  padding:3rem 1rem;
}

.container{
  max-width:960px;
  margin:0 auto;
  display:flex;
  min-height:70vh;
  flex-direction:column;
  gap:2rem;
}

.site-header h1{
  font-size:2.25rem;
  letter-spacing:-0.02em;
}

.brand{
  display:flex;
  align-items:center;
  gap:1rem;
}

.logo{
  width:56px;
  height:56px;
  border-radius:10px;
  flex:0 0 56px;
  box-shadow:0 6px 18px rgba(6,10,20,0.5);
}

.subtitle{
  color:var(--muted);
  margin-top:0.25rem;
}

.hero{
  display:flex;
  align-items:center;
  justify-content:center;
}

.card{
  background:linear-gradient(180deg, rgba(255,255,255,0.02), rgba(255,255,255,0.01));
  border:1px solid rgba(125,211,252,0.08);
  padding:2rem;
  border-radius:12px;
  box-shadow:0 6px 30px rgba(4,6,12,0.6);
  width:100%;
  text-align:center;
}

.card h2{
  color:var(--accent);
  margin-bottom:0.5rem;
}

.btn{
  display:inline-block;
  margin-top:1rem;
  background:linear-gradient(90deg, var(--accent), #60a5fa);
  color:#04212d;
  padding:0.6rem 1.1rem;
  border-radius:8px;
  text-decoration:none;
  font-weight:600;
}

.site-footer{
  color:var(--muted);
  text-align:center;
  margin-top:auto;
}