:root{
  --bg:#0b1220;--panel:#111827;--ink:#e5e7eb;--muted:#9ca3af;
  --ring:#1f2937;--brand:#22d3ee;--accent:#34d399;--warn:#f59e0b
}
*{box-sizing:border-box}
body{margin:0;background:var(--bg);color:var(--ink);font:16px/1.5 system-ui,-apple-system,Segoe UI,Roboto,Ubuntu,Cantarell,Noto Sans,sans-serif}
header{position:sticky;top:0;z-index:20;background:color-mix(in oklab,var(--bg),black 10%);backdrop-filter:saturate(120%) blur(6px);border-bottom:1px solid var(--ring)}
.wrap{max-width:1200px;margin:0 auto;padding:18px}
.headerbar{display:flex;gap:12px;align-items:center;justify-content:space-between}
.brand{display:flex;gap:12px;align-items:center}
.logo{width:32px;height:32px;border-radius:10px;background:conic-gradient(from 210deg,var(--brand),var(--accent))}
.row{display:grid;gap:16px}
@media(min-width:1000px){.row{grid-template-columns:350px 1fr 360px}}
h1{font-size:24px;margin:.2rem 0}
h2{font-size:18px;margin:.2rem 0 8px}
.card{background:var(--panel);border:1px solid var(--ring);border-radius:14px;padding:14px;box-shadow:0 6px 16px rgba(0,0,0,.25)}
label{display:block;margin:8px 0 4px;color:var(--muted)}
input,select,textarea{width:100%;padding:8px 10px;border-radius:10px;border:1px solid var(--ring);background:#0a0f1a;color:var(--ink)}
textarea{min-height:120px}
button{display:inline-flex;gap:8px;align-items:center;padding:8px 12px;border-radius:12px;border:1px solid var(--ring);background:rgba(255,255,255,.03);color:var(--ink);cursor:pointer}
button.primary{background:linear-gradient(135deg,var(--brand),var(--accent));border:none;color:#021016}
.pill{display:inline-block;padding:2px 8px;border-radius:999px;border:1px solid var(--ring);background:rgba(255,255,255,.04);font-size:12px}
.muted{color:var(--muted)} .small{font-size:12px;color:var(--muted)}
.ok{color:#34d399}.bad{color:#f87171}
canvas{width:100%;height:260px;background:#0a0f1a;border:1px dashed var(--ring);border-radius:12px}
.toolbar{display:flex;gap:8px;flex-wrap:wrap}
.grid2{display:grid;gap:10px;grid-template-columns:1fr 1fr}
.mono{font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;white-space:pre-wrap}
.mt{margin-top:10px}
.log{max-height:220px;overflow:auto}