:root {
  --ink: #0a1628;
  --gold: #c5a46e;
  --panel: #f4f5f7;
  --text: #1f2933;
  --muted: #5a6a7a;
  --ok: #2e6b4e;
  --line: rgba(10, 22, 40, 0.1);
  --radius: 14px;
  --display: 'Chakra Petch', sans-serif;
  --sans: 'Hanken Grotesk', system-ui, sans-serif;
  --mono: 'Spline Sans Mono', monospace;
}
* { box-sizing: border-box; }
body {
  margin: 0;
  font-family: var(--sans);
  color: var(--text);
  background: linear-gradient(180deg, #e8edf5 0%, #f4f5f7 120px);
  padding-bottom: env(safe-area-inset-bottom);
}
.topbar {
  position: sticky;
  top: 0;
  z-index: 10;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding: 14px 18px;
  background: var(--ink);
  color: #fff;
}
.brand { display: flex; align-items: center; gap: 12px; }
.brand strong { font-family: var(--display); letter-spacing: 0.08em; font-size: 0.95rem; }
.brand small { display: block; opacity: 0.7; font-size: 0.72rem; }
.mark {
  width: 36px; height: 36px; border-radius: 10px;
  background: linear-gradient(135deg, var(--gold), #e7c873);
}
.pill.demo {
  font-size: 0.7rem;
  padding: 6px 10px;
  border-radius: 999px;
  background: rgba(197, 164, 110, 0.2);
  color: var(--gold);
  border: 1px solid rgba(197, 164, 110, 0.35);
}
.layout { max-width: 960px; margin: 0 auto; padding: 16px; }
.card {
  background: #fff;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 18px;
  margin-bottom: 14px;
  box-shadow: 0 8px 24px rgba(10, 22, 40, 0.06);
}
.hero h1 { margin: 6px 0; font-family: var(--display); font-size: 1.5rem; }
.eyebrow { text-transform: uppercase; letter-spacing: 0.12em; font-size: 0.68rem; color: var(--muted); margin: 0; }
.sub { color: var(--muted); margin: 0 0 16px; font-size: 0.9rem; }
.stats {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 10px;
}
.stats .label { display: block; font-size: 0.72rem; color: var(--muted); }
.stats strong { font-family: var(--mono); font-size: 1.1rem; }
.stats .ok { color: var(--ok); }
.tabs {
  display: flex;
  gap: 8px;
  overflow-x: auto;
  padding-bottom: 8px;
  margin-bottom: 8px;
}
.tabs button {
  border: 1px solid var(--line);
  background: #fff;
  border-radius: 999px;
  padding: 8px 14px;
  font: 600 0.8rem var(--sans);
  white-space: nowrap;
  cursor: pointer;
}
.tabs button.active {
  background: var(--ink);
  color: #fff;
  border-color: var(--ink);
}
.panel { display: none; }
.panel.active { display: block; }
.panel h2 { margin-top: 0; font-family: var(--display); font-size: 1.1rem; }
.hint, .fine { color: var(--muted); font-size: 0.85rem; }
table { width: 100%; border-collapse: collapse; font-size: 0.82rem; }
th, td { text-align: left; padding: 8px 6px; border-bottom: 1px solid var(--line); }
th { color: var(--muted); font-weight: 600; }
code { font-family: var(--mono); font-size: 0.78rem; }
.list { margin: 0; padding-left: 18px; line-height: 1.6; }
.grid2 { display: grid; grid-template-columns: 1fr 1fr; gap: 10px; }
.grid2 article {
  background: var(--panel);
  border-radius: 10px;
  padding: 12px;
}
.grid2 h3 { margin: 0 0 4px; font-size: 0.85rem; }
.grid2 p { margin: 0; font-family: var(--mono); font-weight: 600; }
.grid2 small { color: var(--muted); font-size: 0.72rem; }
.actions { display: flex; flex-wrap: wrap; gap: 8px; margin: 12px 0; }
.btn {
  border: 0;
  border-radius: 10px;
  padding: 10px 14px;
  background: var(--ink);
  color: #fff;
  font-weight: 600;
  font-size: 0.82rem;
  cursor: pointer;
}
.btn.secondary { background: #fff; color: var(--ink); border: 1px solid var(--line); }
.foot {
  display: flex;
  gap: 16px;
  justify-content: center;
  padding: 20px;
  font-size: 0.8rem;
  color: var(--muted);
}
.foot a { color: var(--ink); }
@media (min-width: 700px) {
  .stats { grid-template-columns: repeat(4, 1fr); }
}