* { box-sizing: border-box; }
body {
  margin: 0;
  font-family: ui-sans-serif, system-ui, -apple-system, Segoe UI, Roboto, Arial, sans-serif;
  background: #0b1220;
  color: #e5e7eb;
}
.container {
  max-width: 980px;
  margin: 0 auto;
  padding: 24px;
}
.header h1 {
  margin: 0 0 6px 0;
  font-size: 28px;
}
.sub {
  margin: 0 0 18px 0;
  color: #9ca3af;
}
.card {
  background: rgba(255,255,255,0.04);
  border: 1px solid rgba(255,255,255,0.08);
  border-radius: 12px;
  padding: 16px;
  margin-bottom: 16px;
}
.row { margin-bottom: 12px; }
.label {
  display: block;
  font-size: 12px;
  color: #9ca3af;
  margin-bottom: 6px;
}
input, textarea {
  width: 100%;
  border-radius: 10px;
  border: 1px solid rgba(255,255,255,0.12);
  background: rgba(0,0,0,0.25);
  color: #e5e7eb;
  padding: 10px 12px;
  outline: none;
}
textarea { resize: vertical; }
.actions {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
}
.btn {
  border: 1px solid rgba(255,255,255,0.12);
  background: #2563eb;
  color: white;
  padding: 10px 12px;
  border-radius: 10px;
  cursor: pointer;
}
.btn.secondary { background: rgba(255,255,255,0.06); }
.btn:hover { filter: brightness(1.05); }
.status {
  margin-top: 12px;
  color: #9ca3af;
  min-height: 18px;
}
.banner {
  margin: 10px 0 14px 0;
  padding: 10px 12px;
  border-radius: 12px;
  border: 1px solid rgba(255,255,255,0.10);
  background: rgba(37,99,235,0.10);
  color: #e5e7eb;
  font-size: 13px;
  line-height: 1.35;
}
.banner .k {
  font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, "Liberation Mono", "Courier New", monospace;
  color: #c7d2fe;
}
.out {
  white-space: pre-wrap;
  word-break: break-word;
  background: rgba(0,0,0,0.25);
  border: 1px solid rgba(255,255,255,0.12);
  border-radius: 12px;
  padding: 12px;
  overflow: auto;
}
.graphWrap {
  margin: 8px 0 12px 0;
  padding: 12px;
  border-radius: 12px;
  border: 1px solid rgba(255,255,255,0.12);
  background: rgba(0,0,0,0.18);
}
.graphHeader {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  gap: 10px;
  margin-bottom: 8px;
}
.graphTitle {
  font-weight: 600;
  color: #e5e7eb;
}
.graphStatus {
  font-size: 12px;
  color: #9ca3af;
}
.graphSvg {
  width: 100%;
  height: 420px;
  display: block;
  border-radius: 10px;
  background:
    radial-gradient(1200px 600px at 20% 10%, rgba(96,165,250,0.28), rgba(0,0,0,0.0)),
    linear-gradient(180deg, rgba(255,255,255,0.03), rgba(0,0,0,0.0));
}
.gEdge {
  stroke: rgba(199,210,254,0.85);
  stroke-width: 2.5;
  stroke-linecap: round;
}
.gNode {
  fill: rgba(96,165,250,0.98);
  stroke: rgba(255,255,255,0.75);
  stroke-width: 1.2;
}
.gLabel {
  fill: rgba(243,244,246,0.98);
  stroke: rgba(3,7,18,0.75);
  stroke-width: 3.5;
  paint-order: stroke;
  font-size: 12px;
  pointer-events: none;
}
.gHint {
  fill: rgba(156,163,175,0.9);
  font-size: 12px;
}
.footer {
  margin-top: 10px;
  color: #9ca3af;
  font-size: 12px;
}
code { color: #c7d2fe; }