:root{
  --bg:#050506;--card:rgba(255,255,255,.07);--line:rgba(255,255,255,.14);
  --text:#f4f4f6;--sub:#9a9aa6;--accent:#ff2d55;
}
*{box-sizing:border-box;-webkit-tap-highlight-color:transparent}
html,body{margin:0;min-height:100%;background:var(--bg);color:var(--text);
  font-family:-apple-system,"Segoe UI",Roboto,Helvetica,Arial,sans-serif}
body{min-height:100vh;min-height:100dvh;display:flex;align-items:center;justify-content:center;
  padding:max(24px,env(safe-area-inset-top)) 24px max(24px,env(safe-area-inset-bottom));overflow-x:hidden}
.glow{position:fixed;inset:0;z-index:0;pointer-events:none;
  background:radial-gradient(900px 520px at 50% -8%,rgba(255,255,255,.12),transparent 60%),
             radial-gradient(600px 400px at 85% 110%,rgba(255,45,85,.16),transparent 60%)}
.card{position:relative;z-index:1;width:100%;max-width:420px;text-align:center;padding:34px 26px 26px;
  border-radius:30px;background:var(--card);border:1px solid var(--line);
  -webkit-backdrop-filter:blur(24px);backdrop-filter:blur(24px);animation:rise .5s ease both}
@keyframes rise{from{opacity:0;transform:translateY(14px)}to{opacity:1;transform:none}}
.logo{width:76px;height:76px;border-radius:21px;object-fit:cover;margin-bottom:18px}
h1{font-family:"Playfair Display",Georgia,serif;font-weight:800;font-size:30px;line-height:1.12;margin:0 0 10px}
.sub{margin:0 0 22px;color:var(--sub);font-size:15px;line-height:1.5}
.id{display:inline-block;font-family:"Playfair Display",Georgia,serif;font-weight:800;font-size:28px;letter-spacing:.04em;
  padding:10px 20px;border-radius:18px;border:1px solid var(--line);margin-bottom:22px;word-break:break-all;
  background:rgba(255,255,255,.05)}
.id[hidden],.status[hidden],.hint[hidden]{display:none}
.status{display:flex;align-items:center;justify-content:center;gap:12px;margin:0 0 18px;font-weight:600;font-size:15px}
.spin{width:20px;height:20px;border-radius:50%;border:3px solid rgba(255,255,255,.18);border-top-color:var(--accent);
  animation:sp .8s linear infinite;flex:none}
@keyframes sp{to{transform:rotate(360deg)}}
.btn{display:block;text-decoration:none;font-weight:600;font-size:16px;padding:16px;border-radius:100px;margin-top:12px;
  transition:transform .12s ease,opacity .12s ease}
.btn:active{transform:scale(.97);opacity:.9}
.main{background:var(--accent);color:#fff}
.ghost{border:1px solid var(--line);color:var(--text)}
.hint{margin:16px 0 0;padding:12px 14px;border-radius:14px;background:rgba(255,255,255,.06);
  color:var(--sub);font-size:13px;line-height:1.45}
small{display:block;margin-top:20px;color:var(--sub);font-size:12px;line-height:1.4}
@media (prefers-color-scheme:light){
  :root{--bg:#f4f4f7;--card:rgba(255,255,255,.75);--line:rgba(0,0,0,.1);--text:#101014;--sub:#5d5d68}
  .glow{background:radial-gradient(900px 520px at 50% -8%,rgba(0,0,0,.06),transparent 60%),
                   radial-gradient(600px 400px at 85% 110%,rgba(255,45,85,.14),transparent 60%)}
  .id{background:rgba(0,0,0,.03)}.hint{background:rgba(0,0,0,.04)}
  .spin{border-color:rgba(0,0,0,.12);border-top-color:var(--accent)}
}