:root{
  --bg:#02060a;
  --panel:#071018;
  --panel2:#0b1620;
  --cyan:#00e5ff;
  --green:#00ff99;
  --text:#f4fbff;
  --muted:#86a0ad;
  --line:rgba(0,229,255,.18);
}

*{box-sizing:border-box}

body{
  margin:0;
  min-height:100vh;
  background:
    radial-gradient(circle at top left, rgba(0,229,255,.18), transparent 34%),
    radial-gradient(circle at bottom right, rgba(0,255,153,.12), transparent 32%),
    var(--bg);
  color:var(--text);
  font-family:Inter,Segoe UI,Arial,sans-serif;
}

.shell{
  max-width:1320px;
  margin:0 auto;
  padding:34px;
}

.hero{
  display:flex;
  justify-content:space-between;
  gap:20px;
  align-items:flex-start;
  margin-bottom:28px;
}

.eyebrow{
  color:var(--green);
  letter-spacing:.18em;
  text-transform:uppercase;
  font-size:12px;
  font-weight:800;
}

h1{
  margin:10px 0;
  font-size:44px;
  line-height:1;
}

p{
  margin:0;
  color:var(--muted);
  max-width:720px;
  font-size:16px;
}

.badge{
  border:1px solid var(--line);
  color:var(--cyan);
  padding:12px 16px;
  border-radius:999px;
  background:rgba(0,229,255,.06);
  white-space:nowrap;
}

.grid{
  display:grid;
  grid-template-columns:1fr 1fr 1.15fr;
  gap:18px;
}

.panel{
  background:linear-gradient(180deg,var(--panel),var(--panel2));
  border:1px solid var(--line);
  border-radius:24px;
  padding:22px;
  box-shadow:0 20px 60px rgba(0,0,0,.35);
}

h2{
  margin:0 0 18px;
  font-size:20px;
}

label{
  display:block;
  color:var(--muted);
  margin:16px 0 8px;
  font-size:13px;
}

input{
  width:100%;
  padding:14px;
  border-radius:14px;
  border:1px solid rgba(255,255,255,.12);
  background:#02070c;
  color:var(--text);
  outline:none;
  font-size:15px;
}

input:focus{
  border-color:var(--cyan);
  box-shadow:0 0 0 3px rgba(0,229,255,.12);
}

.conversion{
  display:grid;
  grid-template-columns:1fr 1fr;
  gap:12px;
  margin:18px 0;
}

.conversion div{
  border:1px solid rgba(255,255,255,.1);
  border-radius:16px;
  padding:14px;
  background:rgba(255,255,255,.035);
}

.conversion span{
  display:block;
  color:var(--muted);
  font-size:12px;
  margin-bottom:8px;
}

.conversion strong{
  color:var(--green);
}

button,.linkBtn{
  width:100%;
  display:block;
  text-align:center;
  margin-top:14px;
  padding:15px;
  border:0;
  border-radius:16px;
  background:linear-gradient(90deg,var(--cyan),var(--green));
  color:#001014;
  font-weight:900;
  cursor:pointer;
  text-decoration:none;
}

.status{
  margin-top:16px;
  color:var(--muted);
  min-height:22px;
}

.qrPanel{
  display:flex;
  flex-direction:column;
}

.qrBox{
  flex:1;
  min-height:340px;
  border:1px dashed rgba(0,229,255,.28);
  border-radius:20px;
  display:flex;
  align-items:center;
  justify-content:center;
  background:#02070c;
  color:var(--muted);
  padding:18px;
}

.qrBox img{
  max-width:100%;
  border-radius:18px;
  background:white;
  padding:10px;
}

pre{
  min-height:430px;
  margin:0;
  overflow:auto;
  background:#02070c;
  border:1px solid rgba(255,255,255,.08);
  border-radius:18px;
  padding:18px;
  color:#c9f7ff;
  font-size:13px;
  line-height:1.5;
}

@media(max-width:1000px){
  .grid{grid-template-columns:1fr}
  .hero{flex-direction:column}
  h1{font-size:34px}
}