/* SiftingSats public stats microsite — brand dark theme. Matches the main app's ECharts palette
   (#0d1117 bg, #f7931a Bitcoin orange, #8b949e muted, #2a323d borders). Static, no framework. */
:root {
  --bg: #0d1117;
  --panel: #161b22;
  --border: #2a323d;
  --grid: #1c2330;
  --text: #e6edf3;
  --muted: #8b949e;
  --brand: #f7931a;
  --brand-dim: #b96f14;
  --max: 880px;
}

* { box-sizing: border-box; }

html { -webkit-text-size-adjust: 100%; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font: 16px/1.65 -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  -webkit-font-smoothing: antialiased;
}

a { color: var(--brand); text-decoration: none; }
a:hover { text-decoration: underline; }

/* ── Header / nav ─────────────────────────────────────────── */
.site-header {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 12px 20px;
  max-width: var(--max);
  margin: 0 auto;
  padding: 18px 20px 10px;
}
.brand { display: inline-flex; align-items: center; gap: 10px; color: var(--text); font-weight: 700; }
.brand:hover { text-decoration: none; }
.brand-mark {
  display: inline-grid; place-items: center;
  width: 30px; height: 30px; border-radius: 7px;
  background: var(--brand); color: var(--bg); font-weight: 800; font-size: 19px;
}
.brand-name { font-size: 18px; letter-spacing: -0.01em; }
.brand-sub { color: var(--muted); font-weight: 500; }

.site-nav { display: flex; flex-wrap: wrap; align-items: center; gap: 6px 16px; font-size: 14.5px; }
.site-nav a { color: var(--muted); }
.site-nav a:hover { color: var(--text); text-decoration: none; }
.site-nav a.active { color: var(--text); font-weight: 600; }
.site-nav .nav-cta { color: var(--brand); font-weight: 600; }

/* ── Content ─────────────────────────────────────────────── */
.content {
  max-width: var(--max);
  margin: 0 auto;
  padding: 12px 20px 48px;
}
.content h1 { font-size: 30px; line-height: 1.2; letter-spacing: -0.02em; margin: 18px 0 6px; }
.content h2 { font-size: 21px; margin: 40px 0 10px; letter-spacing: -0.01em; }
.content p { margin: 14px 0; }
.lede { font-size: 18px; color: var(--text); }
.muted { color: var(--muted); }
.content ul { padding-left: 22px; }
.content li { margin: 6px 0; }
hr { border: none; border-top: 1px solid var(--border); margin: 36px 0; }

.pill-nav { font-size: 14.5px; color: var(--muted); margin: 4px 0 8px; }

/* ── Charts ───────────────────────────────────────────────── */
.chart {
  width: 100%;
  height: 420px;
  margin: 18px 0 6px;
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 10px;
}
.chart-title { font-size: 15px; color: var(--muted); margin: 24px 0 -6px; }
.chart-note { font-size: 13.5px; color: var(--muted); margin: 6px 0 4px; font-style: italic; }
.chart.tall { height: 480px; }

/* ── Snapshot tiles ───────────────────────────────────────── */
.tiles {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
  gap: 12px;
  margin: 18px 0;
}
.tile {
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 14px 16px;
}
.tile .label { font-size: 12.5px; color: var(--muted); text-transform: uppercase; letter-spacing: 0.04em; }
.tile .value { font-size: 26px; font-weight: 700; letter-spacing: -0.02em; margin-top: 4px; }

/* Inline computed values in prose. */
.val { color: var(--brand); font-weight: 600; font-variant-numeric: tabular-nums; }

/* ── Callout / CTA ────────────────────────────────────────── */
.cta {
  display: inline-block;
  margin: 6px 0;
  padding: 10px 16px;
  background: var(--brand);
  color: var(--bg);
  border-radius: 8px;
  font-weight: 700;
}
.cta:hover { background: var(--brand-dim); text-decoration: none; }

/* ── Footer ───────────────────────────────────────────────── */
.site-footer {
  max-width: var(--max);
  margin: 0 auto;
  padding: 28px 20px 48px;
  border-top: 1px solid var(--border);
  color: var(--muted);
  font-size: 13.5px;
}
.site-footer p { margin: 8px 0; }

@media (max-width: 560px) {
  .content h1 { font-size: 25px; }
  .chart { height: 340px; }
  .tile .value { font-size: 22px; }
}