:root{
  --primary:#2563eb;--secondary:#1e293b;--accent:#f59e0b;
  --bg:#f8fafc;--surface:#ffffff;--text:#0f172a;--muted:#64748b;
  --radius:14px;--display:system-ui,sans-serif;--body:system-ui,sans-serif;
  --maxw:1120px;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;background:var(--bg);color:var(--text);font-family:var(--body);line-height:1.65;-webkit-font-smoothing:antialiased}
h1,h2,h3{font-family:var(--display);line-height:1.12;letter-spacing:-.02em;margin:.2em 0 .4em}
h1{font-size:clamp(2.1rem,5vw,3.4rem)}h2{font-size:clamp(1.5rem,3vw,2.1rem)}h3{font-size:1.2rem}
p{margin:.6em 0}
a{color:var(--primary);text-decoration:none}a:hover{text-decoration:underline}
.wrap{max-width:var(--maxw);margin:0 auto;padding:0 24px}
.section{padding:64px 0}
.muted{color:var(--muted)}
.btn{display:inline-block;background:var(--primary);color:#fff;padding:12px 22px;border-radius:calc(var(--radius) - 2px);font-weight:600;border:0}
.btn:hover{text-decoration:none;filter:brightness(1.05)}
.btn.ghost{background:transparent;color:var(--primary);border:1.5px solid color-mix(in srgb,var(--primary) 40%,transparent)}
/* header */
.site-header{position:sticky;top:0;z-index:50;background:color-mix(in srgb,var(--bg) 88%,transparent);backdrop-filter:blur(8px);border-bottom:1px solid color-mix(in srgb,var(--text) 8%,transparent)}
.site-header .wrap{display:flex;align-items:center;justify-content:space-between;height:68px;gap:16px}
.brand{font-family:var(--display);font-weight:800;font-size:1.15rem;color:var(--text)}
.brand:hover{text-decoration:none}
.brand .dot{color:var(--accent)}
.nav{display:flex;gap:22px;align-items:center;flex-wrap:wrap}
.nav a{color:var(--text);font-weight:500;font-size:.95rem}
.nav a.cta{color:#fff}
.navtoggle{display:none;background:none;border:0;font-size:1.6rem;color:var(--text);cursor:pointer}
/* hero */
.hero{background:linear-gradient(160deg,color-mix(in srgb,var(--primary) 10%,var(--bg)),var(--bg));padding:84px 0 72px}
.hero .kicker{color:var(--accent);font-weight:700;letter-spacing:.08em;text-transform:uppercase;font-size:.8rem}
.hero p.lede{font-size:1.2rem;max-width:60ch;color:var(--muted)}
.hero .cta-row{display:flex;gap:14px;margin-top:28px;flex-wrap:wrap}
/* cards */
.grid{display:grid;gap:22px}
.grid.cols-2{grid-template-columns:repeat(2,1fr)}
.grid.cols-3{grid-template-columns:repeat(3,1fr)}
.grid.cols-4{grid-template-columns:repeat(4,1fr)}
.card{background:var(--surface);border-radius:var(--radius);padding:26px;border:1px solid color-mix(in srgb, #0f172a 12%, transparent);box-shadow:0 10px 30px rgba(2,6,23,.10)}
.card h3{margin-top:0}
.card .tag{display:inline-block;font-size:.72rem;font-weight:700;text-transform:uppercase;letter-spacing:.06em;color:var(--accent);margin-bottom:8px}
/* stats */
.stats{display:grid;gap:20px}
.stat .n{font-family:var(--display);font-size:2.4rem;font-weight:800;color:var(--primary)}
.stat .l{color:var(--muted);font-size:.95rem}
/* timeline */
.timeline{border-left:2px solid color-mix(in srgb,var(--primary) 30%,transparent);margin-left:8px;padding-left:26px;display:grid;gap:26px}
.timeline .t-item{position:relative}
.timeline .t-item::before{content:"";position:absolute;left:-33px;top:6px;width:12px;height:12px;border-radius:50%;background:var(--primary)}
.timeline .t-date{color:var(--accent);font-weight:700;font-size:.85rem}
/* accordion */
details{background:var(--surface);border:1px solid color-mix(in srgb, #0f172a 12%, transparent);border-radius:var(--radius);padding:6px 20px;margin:12px 0}
details summary{cursor:pointer;font-weight:600;padding:14px 0;list-style:none}
details summary::-webkit-details-marker{display:none}
details[open] summary{color:var(--primary)}
/* newsletter */
.newsletter{background:var(--primary);color:#fff;border-radius:var(--radius);padding:44px;text-align:center}
.newsletter h2{color:#fff}
.newsletter form{display:flex;gap:10px;max-width:460px;margin:22px auto 0;flex-wrap:wrap;justify-content:center}
.newsletter input{flex:1;min-width:220px;padding:13px 16px;border-radius:10px;border:0;font-size:1rem}
.newsletter .btn{background:var(--accent)}
/* sources / comparison */
table.cmp{width:100%;border-collapse:collapse;background:var(--surface);border-radius:var(--radius);overflow:hidden}
table.cmp th,table.cmp td{padding:14px 16px;text-align:left;border-bottom:1px solid color-mix(in srgb,var(--text) 8%,transparent)}
table.cmp th{background:color-mix(in srgb,var(--primary) 8%,var(--surface));font-family:var(--display)}
.sources li{margin:8px 0}
/* footer */
.site-footer{background:color-mix(in srgb,var(--text) 96%,#000);color:#cbd5e1;margin-top:40px;padding:52px 0 40px}
.site-footer a{color:#e2e8f0}
.site-footer .cols{display:grid;grid-template-columns:2fr 1fr 1fr;gap:32px}
.site-footer .brand{color:#fff}
.badge{display:inline-block;font-size:.72rem;background:color-mix(in srgb,var(--accent) 20%,transparent);color:var(--accent);padding:4px 10px;border-radius:999px;font-weight:700}
@media(max-width:860px){
  .grid.cols-3,.grid.cols-4{grid-template-columns:repeat(2,1fr)}
  .site-footer .cols{grid-template-columns:1fr}
  .nav{display:none;position:absolute;top:68px;left:0;right:0;flex-direction:column;background:var(--bg);padding:18px 24px;border-bottom:1px solid #0002}
  .nav.open{display:flex}
  .navtoggle{display:block}
}
@media(max-width:520px){.grid.cols-2,.grid.cols-3,.grid.cols-4{grid-template-columns:1fr}}