:root {
  --bg: #0f1419;
  --card: #1a222c;
  --text: #e7eef7;
  --muted: #9aabbd;
  --accent: #5eb1ff;
  --us: #3dd68c;
  --flash: #f0a35e;
  --border: #2a3644;
  --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: var(--bg);
  color: var(--text);
  line-height: 1.5;
}
.wrap { max-width: 980px; margin: 0 auto; padding: 2rem 1.25rem 4rem; }
.brand { color: var(--accent); letter-spacing: 0.04em; text-transform: uppercase; font-size: 0.8rem; margin: 0 0 0.25rem; }
h1 { font-size: 1.85rem; margin: 0 0 0.75rem; }
h2 { font-size: 1.2rem; margin: 0 0 0.75rem; }
.lede, .cta, .note, .readout, .fine { color: var(--muted); }
.cta { margin-top: 0.5rem; }
.card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 1.25rem 1.35rem;
  margin: 1.5rem 0;
}
.badge {
  display: inline-block;
  font-size: 0.75rem;
  font-weight: 600;
  color: var(--bg);
  background: var(--accent);
  border-radius: 999px;
  padding: 0.15rem 0.55rem;
  margin-left: 0.35rem;
  vertical-align: middle;
}
.table-wrap { overflow-x: auto; }
table { width: 100%; border-collapse: collapse; margin: 1rem 0; font-size: 0.95rem; }
th, td { border-bottom: 1px solid var(--border); padding: 0.65rem 0.5rem; text-align: left; vertical-align: top; }
thead th { color: var(--muted); font-weight: 600; }
.sub { display: block; font-weight: 400; font-size: 0.8rem; color: var(--muted); }
.tag {
  display: inline-block;
  margin-left: 0.35rem;
  font-size: 0.75rem;
  color: var(--flash);
  border: 1px solid var(--flash);
  border-radius: 6px;
  padding: 0 0.35rem;
}
.ex {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 0.75rem 1rem;
  margin: 0.75rem 0;
}
.ex summary { cursor: pointer; }
.prompt { color: var(--muted); font-size: 0.95rem; }
.cols {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1rem;
  margin-top: 0.75rem;
}
@media (max-width: 760px) {
  .cols { grid-template-columns: 1fr; }
}
.col h3 { margin: 0 0 0.5rem; font-size: 1rem; }
.col.us h3 { color: var(--us); }
.col.flash h3 { color: var(--flash); }
.col ul { margin: 0 0 0.75rem; padding-left: 1.1rem; color: var(--muted); font-size: 0.9rem; }
pre {
  margin: 0;
  padding: 0.75rem;
  background: #0b1015;
  border-radius: 8px;
  overflow: auto;
  max-height: 320px;
  font-family: var(--mono);
  font-size: 0.78rem;
  line-height: 1.4;
  border: 1px solid var(--border);
}
code { font-family: var(--mono); font-size: 0.9em; }
a { color: var(--accent); }
footer { margin-top: 2rem; color: var(--muted); font-size: 0.85rem; }