:root {
  --bg: #0f1419;
  --panel: #1a2332;
  --text: #e7ecf3;
  --muted: #9aa8bc;
  --accent: #5b9fff;
  --ok: #3ecf8e;
  --warn: #f0b429;
  --border: #2a3548;
  --mono: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  --sans: "Segoe UI", system-ui, -apple-system, sans-serif;
}
* { box-sizing: border-box; }
body {
  margin: 0;
  font-family: var(--sans);
  background: radial-gradient(1200px 600px at 10% -10%, #1b2a44, var(--bg));
  color: var(--text);
  line-height: 1.5;
  min-height: 100vh;
}
.wrap { max-width: 880px; margin: 0 auto; padding: 2rem 1.25rem 4rem; }
.narrow { max-width: 640px; }
header h1 { margin: 0 0 0.35rem; font-size: 1.75rem; }
header p { margin: 0; color: var(--muted); }
.badge {
  display: inline-block;
  margin-top: 0.75rem;
  padding: 0.2rem 0.55rem;
  border-radius: 999px;
  background: #143528;
  color: var(--ok);
  font-size: 0.8rem;
}
.panel {
  margin-top: 1.5rem;
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 1.25rem;
}
label { display: block; font-size: 0.85rem; color: var(--muted); margin: 0.75rem 0 0.35rem; }
input, textarea {
  width: 100%;
  border: 1px solid var(--border);
  background: #121a26;
  color: var(--text);
  border-radius: 8px;
  padding: 0.65rem 0.75rem;
  font: inherit;
}
textarea { min-height: 110px; resize: vertical; }
.row { display: grid; gap: 0.75rem; }
@media (min-width: 640px) {
  .row.two { grid-template-columns: 1fr 1fr; }
}
.hint { font-size: 0.8rem; color: var(--muted); margin-top: 0.35rem; }
.warn {
  margin-top: 0.75rem;
  padding: 0.65rem 0.75rem;
  border-radius: 8px;
  background: #2a2210;
  color: var(--warn);
  font-size: 0.9rem;
  display: none;
}
.warn.show { display: block; }
.outputs { margin-top: 1rem; display: grid; gap: 0.85rem; }
.out-card {
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 0.75rem;
  background: #121a26;
}
.out-card h2 {
  margin: 0 0 0.5rem;
  font-size: 0.95rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 0.5rem;
}
.out-card pre {
  margin: 0;
  white-space: pre-wrap;
  word-break: break-all;
  font-family: var(--mono);
  font-size: 0.8rem;
  color: #c9d6ea;
  max-height: 9rem;
  overflow: auto;
}
button, .btn {
  appearance: none;
  border: 0;
  border-radius: 8px;
  background: var(--accent);
  color: #061018;
  font-weight: 600;
  padding: 0.45rem 0.75rem;
  cursor: pointer;
  font-size: 0.85rem;
}
button.secondary { background: #2a3548; color: var(--text); }
button:disabled { opacity: 0.5; cursor: not-allowed; }
.actions { display: flex; flex-wrap: wrap; gap: 0.5rem; margin-top: 1rem; }
footer {
  margin-top: 2rem;
  padding-top: 1rem;
  border-top: 1px solid var(--border);
  color: var(--muted);
  font-size: 0.85rem;
}
footer a { color: var(--accent); }