:root{
  --bg0:#070a12;
  --bg1:#0b1222;
  --card:#0b1220cc;
  --stroke:#1b2a43;
  --text:#d8e3ff;
  --muted:#8ca3c7;
  --a:#19e6b6;
  --b:#3a8bff;
  --shadow: 0 20px 60px rgba(0,0,0,.45);
}
*{box-sizing:border-box}
html,body{height:100%}
body{
  margin:0;
  font-family: ui-sans-serif, system-ui, -apple-system, Segoe UI, Roboto, Arial, "Noto Sans", "Liberation Sans", sans-serif;
  color:var(--text);
  background: radial-gradient(1200px 800px at 15% 10%, rgba(25,230,182,.10), transparent 55%),
              radial-gradient(900px 600px at 85% 20%, rgba(58,139,255,.12), transparent 60%),
              linear-gradient(180deg, var(--bg0), var(--bg1));
  overflow-x:hidden;
}
.bg{
  position:fixed; inset:0;
  background-image:
    linear-gradient(to right, rgba(255,255,255,.05) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(255,255,255,.05) 1px, transparent 1px);
  background-size: 48px 48px;
  opacity:.15;
  pointer-events:none;
}
.wrap{max-width:980px; margin:0 auto; padding:44px 18px 28px}
.hero{display:flex; gap:14px; align-items:center; margin-bottom:22px}
.logo{
  width:48px; height:48px; display:grid; place-items:center;
  border-radius:14px;
  background: linear-gradient(135deg, rgba(25,230,182,.95), rgba(58,139,255,.95));
  color:#06101a;
  font-weight:900;
  box-shadow: var(--shadow);
}
h1{margin:0; font-size:30px; letter-spacing:.2px}
.accent{background: linear-gradient(90deg, var(--a), var(--b)); -webkit-background-clip:text; background-clip:text; color:transparent}
.pill{
  font-size:12px; padding:5px 10px; border-radius:999px; margin-left:8px;
  border:1px solid rgba(25,230,182,.35);
  background: rgba(25,230,182,.08);
  color: #86ffe3;
  vertical-align:middle;
}
.sub{margin:4px 0 0; color:var(--muted)}

.card{
  background: var(--card);
  border:1px solid var(--stroke);
  border-radius:18px;
  padding:16px;
  box-shadow: var(--shadow);
  backdrop-filter: blur(10px);
}
.card-h{display:flex; align-items:center; justify-content:space-between; gap:10px; margin-bottom:12px}
.chip{display:flex; align-items:center; gap:10px; color:var(--muted); font-weight:600}
.dot{width:10px; height:10px; border-radius:99px; background: linear-gradient(180deg, var(--a), var(--b))}

textarea{
  width:100%;
  min-height:120px;
  border-radius:14px;
  border:1px solid rgba(255,255,255,.08);
  background: rgba(0,0,0,.35);
  color: var(--text);
  padding:14px;
  font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, "Liberation Mono", "Courier New", monospace;
  font-size:13px;
  outline:none;
}
textarea:focus{border-color: rgba(25,230,182,.45); box-shadow: 0 0 0 3px rgba(25,230,182,.10)}

.row{display:flex; gap:10px; margin-top:12px; flex-wrap:wrap}
.btn{
  border-radius:14px;
  border:1px solid rgba(255,255,255,.10);
  background: rgba(255,255,255,.04);
  color: var(--text);
  padding:11px 14px;
  font-weight:700;
  cursor:pointer;
}
.btn:hover{background: rgba(255,255,255,.06)}
.btn.primary{
  border:none;
  background: linear-gradient(90deg, var(--a), var(--b));
  color:#071320;
}
.btn.primary:hover{filter:brightness(1.04)}

.grid{display:grid; grid-template-columns:1fr; gap:14px; margin-top:14px}
@media (min-width: 920px){.grid{grid-template-columns:1fr 1fr}}

.out{
  margin:0;
  min-height:160px;
  padding:14px;
  border-radius:14px;
  border:1px solid rgba(255,255,255,.08);
  background: rgba(0,0,0,.35);
  overflow:auto;
  font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, "Liberation Mono", "Courier New", monospace;
  font-size:12.6px;
  white-space:pre-wrap;
  word-break:break-word;
}

.mini{
  border-radius:12px;
  border:1px solid rgba(255,255,255,.10);
  background: rgba(255,255,255,.04);
  color: var(--muted);
  padding:8px 10px;
  font-weight:700;
  cursor:pointer;
}
.mini:hover{background: rgba(255,255,255,.06); color: var(--text)}

.hint{margin-top:12px; color:var(--muted)}
.hint summary{cursor:pointer; font-weight:700}
.hint code{color:#b7c7ff}

.foot{margin-top:18px; color:rgba(140,163,199,.9); text-align:center; font-size:12px}