:root{
  --bg1:#0e1117; --bg2:#111827; --fg:#e5e7eb; --muted:#9ca3af;
  --accent:#22d3ee; --accent2:#a78bfa;
}
*{box-sizing:border-box}
html,body{height:100%}
body{
  margin:0; font-family:system-ui,Arial,sans-serif;
  color:var(--fg); background:linear-gradient(180deg,var(--bg1),var(--bg2));
  display:grid; place-items:center;
}
.card{
  width:min(720px,92vw); background:#1f2937;
  border-radius:24px; padding:32px; text-align:center;
  box-shadow:0 20px 60px rgba(0,0,0,.35);
}
h1{margin:0 0 8px; font-size:clamp(28px,6vw,44px)}
p{margin:8px 0; color:var(--muted)}
.bar{margin:20px 0; height:14px; border-radius:999px; background:rgba(255,255,255,.08); overflow:hidden}
.bar span{
  display:block; height:100%; width:60%;
  background:repeating-linear-gradient(45deg,var(--accent) 0 14px,var(--accent2) 14px 28px);
  animation: load 2s ease-in-out infinite alternate;
}
@keyframes load{from{width:25%} to{width:90%}}
footer{margin-top:24px; font-size:13px; color:var(--muted)}