:root {
  --bg: #0b0f14;
  --bg-elev: #121821;
  --bg-card: #161d28;
  --border: #243041;
  --text: #e8eef7;
  --muted: #93a0b4;
  --accent: #3dd68c;
  --accent-2: #5b8cff;
  --warn: #f5a524;
  --danger: #f2555a;
  --radius: 14px;
  --shadow: 0 12px 40px rgba(0,0,0,.35);
  --font: "Inter", "Segoe UI", system-ui, -apple-system, sans-serif;
  --mono: "JetBrains Mono", "SF Mono", ui-monospace, monospace;
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: var(--font);
  background:
    radial-gradient(1200px 600px at 10% -10%, rgba(91,140,255,.18), transparent 55%),
    radial-gradient(900px 500px at 90% 0%, rgba(61,214,140,.12), transparent 50%),
    var(--bg);
  color: var(--text);
  line-height: 1.55;
  min-height: 100vh;
}
a { color: var(--accent-2); text-decoration: none; }
a:hover { text-decoration: underline; }
.wrap { width: min(1100px, calc(100% - 2rem)); margin: 0 auto; }
.site-header {
  position: sticky; top: 0; z-index: 20;
  backdrop-filter: blur(12px);
  background: rgba(11,15,20,.78);
  border-bottom: 1px solid var(--border);
}
.site-header .inner {
  display: flex; align-items: center; justify-content: space-between;
  padding: 1rem 0; gap: 1rem;
}
.brand { font-weight: 700; letter-spacing: .2px; color: var(--text); text-decoration: none; }
.brand span { color: var(--accent); }
.nav { display: flex; gap: 1rem; flex-wrap: wrap; }
.nav a { color: var(--muted); text-decoration: none; font-size: .95rem; }
.nav a:hover { color: var(--text); }
.hero { padding: 4.5rem 0 2.5rem; }
.hero h1 { font-size: clamp(2rem, 4vw, 3rem); line-height: 1.15; margin: 0 0 1rem; }
.hero p.lead { font-size: 1.15rem; color: var(--muted); max-width: 46rem; margin: 0 0 1.5rem; }
.badge {
  display: inline-flex; align-items: center; gap: .4rem;
  padding: .35rem .7rem; border-radius: 999px;
  border: 1px solid var(--border); background: var(--bg-elev);
  color: var(--muted); font-size: .8rem; margin-bottom: 1rem;
}
.badge .dot { width: .5rem; height: .5rem; border-radius: 50%; background: var(--accent); }
.grid { display: grid; gap: 1rem; }
.grid-2 { grid-template-columns: repeat(2, minmax(0,1fr)); }
.grid-3 { grid-template-columns: repeat(3, minmax(0,1fr)); }
@media (max-width: 860px) {
  .grid-2, .grid-3 { grid-template-columns: 1fr; }
}
.card {
  background: linear-gradient(180deg, rgba(255,255,255,.02), transparent 40%), var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.25rem 1.35rem;
  box-shadow: var(--shadow);
}
.card h2, .card h3 { margin-top: 0; }
.card p { color: var(--muted); }
.card .meta { display: flex; flex-wrap: wrap; gap: .5rem; margin: 1rem 0; }
.chip {
  font-size: .75rem; padding: .25rem .55rem; border-radius: 999px;
  background: #1c2635; border: 1px solid var(--border); color: var(--muted);
}
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: .4rem;
  border: 1px solid transparent; border-radius: 10px;
  padding: .7rem 1rem; font-weight: 600; cursor: pointer;
  text-decoration: none; font-size: .95rem;
}
.btn-primary { background: var(--accent); color: #062416; }
.btn-primary:hover { filter: brightness(1.05); text-decoration: none; }
.btn-ghost {
  background: transparent; color: var(--text); border-color: var(--border);
}
.btn-ghost:hover { border-color: #3a4d66; text-decoration: none; }
.section { padding: 2rem 0; }
.section h2 { margin: 0 0 1rem; font-size: 1.5rem; }
.muted { color: var(--muted); }
.small { font-size: .9rem; }
.footer {
  margin-top: 3rem; padding: 2rem 0 3rem;
  border-top: 1px solid var(--border); color: var(--muted); font-size: .9rem;
}
.kpis { display: grid; grid-template-columns: repeat(4, minmax(0,1fr)); gap: .75rem; }
@media (max-width: 860px) { .kpis { grid-template-columns: 1fr 1fr; } }
.kpi {
  background: var(--bg-elev); border: 1px solid var(--border);
  border-radius: 12px; padding: .9rem 1rem;
}
.kpi .v { font-size: 1.25rem; font-weight: 700; font-variant-numeric: tabular-nums; }
.kpi .l { color: var(--muted); font-size: .8rem; margin-top: .2rem; }
table.data {
  width: 100%; border-collapse: collapse; font-size: .9rem;
  font-variant-numeric: tabular-nums;
}
table.data th, table.data td {
  text-align: left; padding: .55rem .45rem;
  border-bottom: 1px solid var(--border);
}
table.data th { color: var(--muted); font-weight: 600; font-size: .78rem; text-transform: uppercase; letter-spacing: .04em; }
table.data td.num, table.data th.num { text-align: right; }
.callout {
  border-left: 3px solid var(--accent-2);
  background: rgba(91,140,255,.08);
  padding: .85rem 1rem; border-radius: 0 10px 10px 0;
  color: var(--muted); margin: 1rem 0;
}
.callout.warn { border-left-color: var(--warn); background: rgba(245,165,36,.08); }
.callout.ok { border-left-color: var(--accent); background: rgba(61,214,140,.08); }
.controls { display: grid; gap: .85rem; }
label.field { display: grid; gap: .35rem; font-size: .85rem; color: var(--muted); }
label.field input[type="range"] { width: 100%; accent-color: var(--accent); }
label.field input[type="number"], label.field select {
  background: var(--bg); border: 1px solid var(--border); color: var(--text);
  border-radius: 8px; padding: .55rem .65rem; font: inherit;
}
.row-btns { display: flex; flex-wrap: wrap; gap: .4rem; }
.row-btns button {
  background: #1c2635; border: 1px solid var(--border); color: var(--text);
  border-radius: 8px; padding: .4rem .7rem; cursor: pointer;
}
.row-btns button.active { border-color: var(--accent); color: var(--accent); }
.metric-big { font-size: 1.6rem; font-weight: 700; font-variant-numeric: tabular-nums; }
.pos { color: var(--accent); }
.neg { color: var(--danger); }
.chart {
  width: 100%; height: 220px; background: #0e141d;
  border: 1px solid var(--border); border-radius: 10px; display: block;
}
.toc { display: flex; flex-wrap: wrap; gap: .6rem; margin: 1rem 0 1.5rem; }
.toc a {
  font-size: .85rem; color: var(--muted); border: 1px solid var(--border);
  padding: .35rem .65rem; border-radius: 999px; text-decoration: none;
}
.toc a:hover { color: var(--text); border-color: #3a4d66; }
.prose h3 { margin-top: 1.75rem; }
.prose ul { color: var(--muted); }
code, .mono { font-family: var(--mono); font-size: .88em; }

/* Language switcher */
.lang-switch {
  display: inline-flex;
  align-items: center;
  gap: .15rem;
  border: 1px solid var(--border);
  border-radius: 999px;
  padding: .15rem;
  background: var(--bg-elev);
}
.lang-switch a {
  color: var(--muted);
  text-decoration: none;
  font-size: .8rem;
  font-weight: 600;
  letter-spacing: .04em;
  padding: .28rem .55rem;
  border-radius: 999px;
}
.lang-switch a:hover { color: var(--text); text-decoration: none; }
.lang-switch a[aria-current="page"] {
  background: rgba(61,214,140,.15);
  color: var(--accent);
}
.header-actions {
  display: flex;
  align-items: center;
  gap: 1rem;
  flex-wrap: wrap;
}

.dash-toc { position: sticky; top: 4.2rem; z-index: 15; background: rgba(11,15,20,.9); backdrop-filter: blur(10px); border-bottom: 1px solid var(--border); margin: 0 -1rem 1rem; padding: .6rem 1rem; }
.dash-toc .wrap { display:flex; flex-wrap:wrap; gap:.4rem; }
.seg { display:inline-flex; flex-wrap:wrap; gap:.25rem; background:#0e141d; border:1px solid var(--border); border-radius:10px; padding:.2rem; }
.seg button { background:transparent; border:0; color:var(--muted); padding:.4rem .7rem; border-radius:8px; cursor:pointer; font:inherit; font-size:.85rem; }
.seg button.active { background:rgba(61,214,140,.15); color:var(--accent); }
.props { display:grid; gap:.35rem; }
.props div { display:flex; justify-content:space-between; gap:1rem; border-bottom:1px dashed #243041; padding:.25rem 0; font-size:.9rem; }
.props span { color:var(--muted); }
.props strong { font-variant-numeric: tabular-nums; text-align:right; }
.chart-box { background:#0e141d; border:1px solid var(--border); border-radius:12px; padding:.75rem; height:280px; }
.chart-box.tall { height:340px; }
.example-tag { display:inline-block; font-size:.72rem; color:var(--warn); border:1px solid rgba(245,165,36,.35); padding:.15rem .45rem; border-radius:999px; margin-left:.35rem; }
.two-col { display:grid; grid-template-columns:1fr 1fr; gap:1rem; }
@media (max-width:900px){ .two-col{ grid-template-columns:1fr; } .dash-toc{ position:static; } }
.table-wrap { overflow:auto; }
.checkrow { display:flex; flex-wrap:wrap; gap:.8rem 1.2rem; color:var(--muted); font-size:.9rem; }
.checkrow label { display:flex; align-items:center; gap:.35rem; }
.formula { font-family:var(--mono); font-size:.85rem; background:#0e141d; border:1px solid var(--border); border-radius:8px; padding:.65rem .8rem; margin:.4rem 0; color:#c9d4e5; }
.sources a { display:block; margin:.25rem 0; }