:root{
  --bg:#f6f7f9;
  --card:#ffffff;
  --muted:#6b7280;
  --accent:#0f172a;
  --btn:#111827;
  --success:#059669;
}
*{box-sizing:border-box}
html,body,#app{height:100%}
body{
  margin:0;
  font-family:Inter, ui-sans-serif, system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial;
  background:var(--bg);
  display:flex;
  align-items:center;
  justify-content:center;
  -webkit-font-smoothing:antialiased;
  -moz-osx-font-smoothing:grayscale;
  padding:16px;
}
.card{
  width:100%;
  max-width:520px;
  background:var(--card);
  border-radius:12px;
  box-shadow:0 6px 24px rgba(12,16,24,0.08);
  padding:20px;
  display:flex;
  flex-direction:column;
  gap:12px;
  align-items:stretch;
}
.label{
  font-size:13px;
  color:var(--muted);
  text-transform:uppercase;
  letter-spacing:0.08em;
}
.domain{
  font-size:20px;
  color:var(--accent);
  background:linear-gradient(90deg, rgba(15,23,42,0.03), rgba(15,23,42,0.01));
  padding:14px;
  border-radius:8px;
  word-break:break-all;
  min-height:44px;
  display:flex;
  align-items:center;
}
.controls{
  display:flex;
  gap:10px;
  justify-content:flex-start;
  margin-top:4px;
}
.btn{
  min-width:64px;
  min-height:44px;
  padding:8px 12px;
  border-radius:8px;
  border:1px solid rgba(15,23,42,0.06);
  background:linear-gradient(180deg,#ffffff,#f7f8fa);
  color:var(--btn);
  font-weight:600;
  cursor:pointer;
  -webkit-tap-highlight-color:transparent;
}
.btn:active{transform:translateY(1px)}
.msg{
  margin-top:6px;
  font-size:14px;
  color:var(--success);
  height:18px;
  opacity:0;
  transition:opacity .18s;
}
.msg.show{opacity:1}
@media (max-width:420px){
  .card{padding:14px}
  .domain{font-size:18px}
  .btn{flex:1; min-width:0}
}