:root{
  --bg:#000;
  --fg:#fff;
  --muted:#b5b5b5;
  --accent:#00ffd0;   /* neon mint */
  --card:#0b0b0b;
}
*{box-sizing:border-box}
html,body{
  height:100%;
  margin:0;
  font-family: Arial, Helvetica, sans-serif;
  background:var(--bg);
  color:var(--fg);
}
.page{
  min-height:100%;
  display:flex;
  align-items:center;
  justify-content:center;
  padding:24px;
}
.wrap{
  width:100%;
  max-width:760px;
  background:var(--card);
  border:5px solid var(--fg);
  box-shadow:12px 12px 0 var(--accent);
  padding:48px 36px;
  text-align:center;
}
.tag{
  display:inline-block;
  font-weight:800;
  letter-spacing:.06em;
  border:3px solid var(--fg);
  padding:6px 10px;
  margin-bottom:22px;
  text-transform:uppercase;
  background:transparent;
}
.code{
  font-size: clamp(96px, 18vw, 200px);
  font-weight: 900;
  line-height: .85;
  margin: 0 0 10px 0;
  text-transform: uppercase;
  text-shadow: -3px 0 0 var(--accent);
}
.desc{
  display:inline-block;
  margin-top:16px;
  font-size:18px;
  color:var(--muted);
  border:3px solid var(--fg);
  padding:12px 16px;
  background: #111;
}
.links{
  margin-top:28px;
  display:flex;
  align-items:center;
  justify-content:center;
  gap:16px;
  flex-wrap:wrap;
}
.btn{
  appearance:none;
  border:3px solid var(--fg);
  background:var(--fg);
  color:var(--bg);
  font-weight:800;
  padding:14px 24px;
  text-decoration:none;
  box-shadow:6px 6px 0 var(--accent);
  transition: transform .08s ease-in-out;
}
.btn:hover{ transform: translate(-2px,-2px); }
.btn:active{ transform: translate(0,0); box-shadow:4px 4px 0 var(--accent); }
.ghost{
  background:transparent;
  color:var(--fg);
}
.ghost:hover{ background:var(--accent); color:#000; }
.footer{
  margin-top:26px;
  font-size:12px;
  color:#7a7a7a;
  letter-spacing:.04em;
}
/* Accessibility niceties */
.btn:focus-visible, a:focus-visible, .tag:focus-visible{
  outline:3px dashed var(--accent);
  outline-offset:4px;
}
@media (max-width:768px){
  .wrap{ padding:36px 22px; }
}
@media (prefers-reduced-motion: reduce){
  .btn{ transition:none; }
}