:root{
  --bg:#070f16; --bg2:#0c1822; --card:#102030; --line:#1e3347;
  --text:#e7eef6; --muted:#9bb0c3; --accent:#3dd6c6; --accent2:#7aa7ff;
  --warn:#f0b429; --danger:#ff7a7a; --ok:#5ddea8;
  --radius:18px; --shadow:0 18px 50px rgba(0,0,0,.35);
  --font: ui-sans-serif, system-ui, -apple-system, Segoe UI, Roboto, Helvetica, Arial, sans-serif;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth;overflow-x:hidden}
body{margin:0;overflow-x:hidden;font-family:var(--font);background:radial-gradient(1200px 600px at 10% -10%,#123047 0%,transparent 55%),radial-gradient(900px 500px at 100% 0%,#0b2a28 0%,transparent 40%),var(--bg);color:var(--text);line-height:1.55}
a{color:var(--accent2);text-decoration-thickness:1px;text-underline-offset:3px}
a:hover{color:#b9d0ff}
img{max-width:100%;height:auto;border-radius:14px;display:block}
.skip{position:absolute;left:-999px;top:auto}.skip:focus{left:1rem;top:1rem;background:#fff;color:#000;padding:.5rem 750rem;z-index:99;padding:.5rem .8rem}
.wrap{width:min(1120px,calc(100% - 2rem));margin:0 auto}
.top{position:sticky;top:0;z-index:40;backdrop-filter:blur(14px);background:rgba(7,15,22,.82);border-bottom:1px solid var(--line)}
.top .wrap{display:flex;align-items:center;gap:1rem;min-height:64px}
.brand{display:inline-flex;align-items:center;gap:.65rem;color:var(--text);text-decoration:none;font-weight:700;letter-spacing:.01em;white-space:nowrap}
.brand b{color:var(--accent);font-weight:800}
.mark{width:28px;height:28px;border-radius:9px;background:linear-gradient(145deg,#1a4, #3dd6c6 40%, #7aa7ff);box-shadow:0 0 0 1px rgba(255,255,255,.08), inset 0 0 12px rgba(255,255,255,.2)}
.nav{display:flex;flex-wrap:wrap;gap:.15rem .7rem;margin-left:auto}
.nav a{color:var(--muted);text-decoration:none;font-size:.92rem;padding:.25rem 0;border-bottom:2px solid transparent}
.nav a.on,.nav a:hover{color:var(--text);border-bottom-color:var(--accent)}
.burger{display:none;background:transparent;border:1px solid var(--line);color:var(--text);border-radius:10px;padding:.35rem .55rem}
main{padding:1.25rem 0 3rem}
.banner{width:min(1120px,calc(100% - 2rem));margin:0 auto 1rem;background:linear-gradient(90deg,rgba(61,214,198,.12),rgba(122,167,255,.08));border:1px solid var(--line);border-radius:14px;padding:.85rem 1rem;color:var(--muted);font-size:.95rem}
.banner b{color:var(--text)}
.hero{width:min(1120px,calc(100% - 2rem));margin:0 auto 1.5rem;display:grid;grid-template-columns:1.3fr .9fr;gap:1.5rem;align-items:center}
.hero.narrow{grid-template-columns:1fr}
.hero.topic-hero{margin-top:.5rem}
.eyebrow{text-transform:uppercase;letter-spacing:.12em;font-size:.75rem;color:var(--accent);margin:0 0 .4rem}
h1{font-size:clamp(1.8rem,4vw,2.7rem);line-height:1.15;margin:0 0 .8rem}
h2{font-size:1.35rem;margin:0 0 .6rem}
h3{margin:.2rem 0 .4rem}
.lede{font-size:1.08rem;color:var(--muted);margin:0 0 1rem}
.hero-actions{display:flex;flex-wrap:wrap;gap:.7rem}
.btn{display:inline-flex;align-items:center;justify-content:center;background:linear-gradient(135deg,var(--accent),#2bb8c0);color:#042018;font-weight:800;border:none;border-radius:999px;padding:.7rem 1.1rem;text-decoration:none}
.btn.ghost{background:transparent;color:var(--text);border:1px solid var(--line)}
.btn:hover{filter:brightness(1.05);color:#042018}
.btn.ghost:hover{color:var(--text)}
.hero-fig{margin:0;background:var(--card);border:1px solid var(--line);border-radius:var(--radius);padding:.7rem;box-shadow:var(--shadow)}
.hero-fig figcaption,.muted,.unit,.source{color:var(--muted);font-size:.9rem}
.hero-fig figcaption{margin-top:.55rem}
.grid.cards{width:min(1120px,calc(100% - 2rem));margin:0 auto 1.25rem;display:grid;grid-template-columns:repeat(3,1fr);gap:1rem}
.tile{display:block;background:linear-gradient(180deg,rgba(16,32,48,.95),rgba(10,22,34,.95));border:1px solid var(--line);border-radius:var(--radius);padding:1.1rem 1.15rem;text-decoration:none;color:inherit;box-shadow:var(--shadow);transition:transform .15s ease, border-color .15s}
.tile:hover{transform:translateY(-2px);border-color:#2e5473;color:inherit}
.tile p{color:var(--muted);margin:.35rem 0 .8rem}
.tile span{font-size:.8rem;color:var(--accent);letter-spacing:.04em}
.card{width:min(1120px,calc(100% - 2rem));margin:0 auto 1.1rem;background:rgba(16,32,48,.9);border:1px solid var(--line);border-radius:var(--radius);padding:1.15rem 1.2rem;box-shadow:var(--shadow)}
.chart-card .chart-wrap{background:#08141e;border:1px solid var(--line);border-radius:14px;padding:.75rem}
.chart-head{display:flex;flex-wrap:wrap;justify-content:space-between;gap:.5rem;align-items:end;margin-bottom:.7rem}
.split{display:grid;grid-template-columns:1fr 1fr;gap:1rem}
.center{text-align:center}
.caveats{padding-left:1.1rem}
.caveats li,.sources li{margin:.35rem 0}
.data-details{margin:.8rem 0}
.data-details summary{cursor:pointer;color:var(--accent2);font-weight:600}
.prose{width:min(1120px,calc(100% - 2rem));margin:0 auto 1.1rem}
.prose p{margin:0 0 .9rem;color:var(--muted);max-width:68ch}
.prose p:last-child{margin-bottom:0}
.dl{margin:.75rem 0 0}
.dl a{display:inline-flex;align-items:center;gap:.4rem;font-weight:700;color:var(--accent2);text-decoration:none;border:1px solid var(--line);border-radius:999px;padding:.45rem .9rem;background:rgba(122,167,255,.08)}
.dl a:hover{color:#b9d0ff;border-color:#2e5473}
.tbl-wrap{overflow-x:auto;-webkit-overflow-scrolling:touch;margin:.6rem 0;max-width:100%;border:1px solid var(--line);border-radius:12px;background:#08141e}
.tbl-scroll-hint{margin:.35rem 0 .15rem;color:var(--muted);font-size:.78rem}
.tbl{width:100%;border-collapse:collapse;font-size:.92rem;min-width:36rem}
.tbl th,.tbl td{border-bottom:1px solid var(--line);padding:.45rem .55rem;text-align:left;vertical-align:top}
.tbl th{color:var(--muted);font-weight:600;white-space:nowrap}
.tbl td{white-space:nowrap}
.tbl td.note,.tbl th.note{white-space:normal;min-width:14rem;max-width:28rem;overflow-wrap:anywhere;hyphens:auto}
.tbl th:last-child,.tbl td:last-child{white-space:normal;min-width:14rem;max-width:28rem;overflow-wrap:anywhere}
@media (max-width: 640px){
  .tbl{min-width:28rem;font-size:.85rem}
  .tbl th:last-child,.tbl td:last-child,.tbl td.note{max-width:18rem}
}
.notice{background:rgba(240,180,41,.08);border:1px solid rgba(240,180,41,.25);padding:.8rem 1rem;border-radius:12px}
.legal h2{margin-top:1.3rem}
.glossary dt{font-weight:700;margin-top:.9rem;color:var(--accent)}
.glossary dd{margin:.25rem 0 .6rem;color:var(--muted)}
footer{border-top:1px solid var(--line);padding:2rem 0 2.5rem;background:#050b11;margin-top:2rem}
footer .cols{display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr;gap:1.2rem}
footer h4{margin:0 0 .5rem;font-size:.85rem;letter-spacing:.08em;text-transform:uppercase;color:var(--muted)}
footer ul{list-style:none;padding:0;margin:0}
footer li{margin:.28rem 0}
footer a{color:var(--text);text-decoration:none}
footer a:hover{color:var(--accent)}
.fine{margin-top:1.4rem;color:var(--muted);font-size:.82rem;border-top:1px solid var(--line);padding-top:1rem}
@media (max-width: 920px){
  .hero,.grid.cards,.split,footer .cols{grid-template-columns:1fr}
  .nav{display:none}
  .top.nav-open .nav{display:flex;position:absolute;left:0;right:0;top:64px;background:#0a1520;border-bottom:1px solid var(--line);padding:1rem;flex-direction:column}
  .burger{display:inline-flex;margin-left:auto}
}

/* AdSense: keep units from crowding charts/tables when Auto ads place them */
ins.adsbygoogle{display:block;margin:1rem auto;max-width:100%;background:transparent}
.chart-card ins.adsbygoogle,.data-details ins.adsbygoogle{margin-top:1rem}

.projected-hint,.notice{background:rgba(240,180,41,.08);border:1px solid rgba(240,180,41,.28);padding:.8rem 1rem;border-radius:12px;color:var(--muted)}
.notice b{color:var(--warn)}