:root{
  --bg:#0b1020;
  --card:#121a33;
  --muted:#9aa7c0;
  --text:#e8eeff;
  --border:rgba(255,255,255,.08);
  --primary:#6aa9ff;
  --primary2:#5cf0c6;
}

*{box-sizing:border-box}
body{
  margin:0;
  font-family: ui-sans-serif, system-ui, -apple-system, Segoe UI, Roboto, Arial, sans-serif;
  background: radial-gradient(1200px 600px at 20% 0%, rgba(106,169,255,.18), transparent 50%),
              radial-gradient(900px 500px at 90% 10%, rgba(92,240,198,.14), transparent 55%),
              var(--bg);
  color:var(--text);
}

.container{max-width:1100px;margin:0 auto;padding:18px}
.topbar{
  position:sticky; top:0;
  background: rgba(11,16,32,.75);
  backdrop-filter: blur(10px);
  border-bottom:1px solid var(--border);
}
.brand{display:flex;align-items:center;gap:12px}
.logo{
  width:34px;height:34px;border-radius:10px;
  display:grid;place-items:center;
  background: linear-gradient(135deg, var(--primary), var(--primary2));
  color:#0b1020;font-weight:800;
}
.title{font-weight:800;letter-spacing:.2px}
.subtitle{font-size:12px;color:var(--muted)}
.actions{margin-left:auto}
.topbar .container{display:flex;align-items:center;gap:12px}

.card{
  background: rgba(18,26,51,.78);
  border:1px solid var(--border);
  border-radius:18px;
  padding:18px;
  margin:16px 0;
  box-shadow: 0 10px 30px rgba(0,0,0,.25);
}
h2{margin:0 0 12px 0}
h3{margin:12px 0 8px 0}
.muted{color:var(--muted)}
.hint{color:var(--muted);font-size:12px}

.grid{
  display:grid;
  grid-template-columns: repeat(4, minmax(0,1fr));
  gap:12px;
}
@media (max-width: 980px){
  .grid{grid-template-columns: repeat(2, minmax(0,1fr));}
}
@media (max-width: 520px){
  .grid{grid-template-columns: 1fr;}
}

.label{font-size:12px;color:var(--muted);margin-bottom:6px}
select, textarea{
  width:100%;
  background: rgba(8,12,25,.7);
  color:var(--text);
  border:1px solid var(--border);
  border-radius:12px;
  padding:10px 12px;
  outline:none;
}
textarea{
  min-height: 220px;
  font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, "Liberation Mono", monospace;
  font-size:12px;
}

.row{display:flex;align-items:center;gap:10px;margin-top:12px;flex-wrap:wrap}
.btn{
  border:1px solid var(--border);
  background: rgba(8,12,25,.6);
  color:var(--text);
  padding:10px 12px;
  border-radius:12px;
  cursor:pointer;
}
.btn:hover{border-color:rgba(255,255,255,.18)}
.btn.primary{
  background: linear-gradient(135deg, rgba(106,169,255,.95), rgba(92,240,198,.85));
  color:#071022;
  border:none;
  font-weight:800;
}
.split{
  display:grid;
  grid-template-columns: 1fr 1fr;
  gap:12px;
}
@media (max-width: 980px){
  .split{grid-template-columns: 1fr;}
}
pre{
  background: rgba(8,12,25,.65);
  border:1px solid var(--border);
  border-radius:12px;
  padding:12px;
  overflow:auto;
  max-height: 420px;
}
.summary{
  display:grid;
  grid-template-columns: 1fr;
  gap:8px;
}
.kv{
  display:flex;justify-content:space-between;gap:10px;
  background: rgba(8,12,25,.45);
  border:1px solid var(--border);
  border-radius:12px;
  padding:10px 12px;
}
.kv .k{color:var(--muted);font-size:12px}
.kv .v{font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, "Liberation Mono", monospace; font-size:12px}

.footer{padding:10px 0}