html,body{
  height:100%;
  margin:0;
  background:#000;
  font-family:system-ui,-apple-system,Segoe UI,Roboto,"Helvetica Neue",Arial;
  -webkit-font-smoothing:antialiased;
  -moz-osx-font-smoothing:grayscale;
  overflow-x:hidden;
}

.wrap{
  min-height:100%;
  display:flex;
  flex-direction:column;
  align-items:center;
  justify-content:center;
  gap:32px;
  padding:40px 20px;
  box-sizing:border-box;
}

.logo{
  width:600px;
  height:600px;
  max-width:calc(100vw - 40px);
  max-height:calc(100vh - 220px);
  object-fit:contain;
  display:block;
}

.btn-wrap{
  width:100%;
  display:flex;
  justify-content:center;
  margin-top:8px;
}

.link-btn{
  appearance:none;
  -webkit-appearance:none;
  border:0;
  padding:16px 34px;
  border-radius:14px;
  background:#bcfe3c;
  color:#000;
  font-weight:600;
  text-decoration:none;
  font-size:18px;
  box-shadow:0 8px 24px rgba(0,0,0,0.45);
  transition:transform .18s ease,box-shadow .18s ease,opacity .18s ease;
  display:inline-block;
}

.link-btn:hover{
  transform:translateY(-3px);
  box-shadow:0 12px 28px rgba(0,0,0,0.55);
}

.link-btn:active{
  transform:translateY(1px);
}

.link-btn:focus{
  outline:3px solid rgba(188,254,60,0.18);
  outline-offset:3px;
}

@media (max-width:600px){
  .logo{
    width:70%;
    height:auto;
  }
  .link-btn{
    font-size:16px;
    padding:14px 24px;
  }
}