:root{
  --bg:#0b0e13;
  --surface:#11161d;
  --surface-2:#171d26;
  --text:#f4f7fb;
  --muted:#9da8b7;
  --line:#26303d;
  --accent:#7ee787;
  --accent-2:#78dce8;
  --max:1200px;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;
  background:var(--bg);
  color:var(--text);
  font-family:Inter,ui-sans-serif,-apple-system,BlinkMacSystemFont,"Segoe UI","Hiragino Sans","Noto Sans JP",sans-serif;
  line-height:1.65;
}
a{color:inherit;text-decoration:none}
.site-header{
  position:sticky;top:0;z-index:20;
  display:flex;align-items:center;justify-content:space-between;
  min-height:72px;padding:0 max(24px,calc((100vw - var(--max))/2));
  border-bottom:1px solid rgba(255,255,255,.08);
  background:rgba(11,14,19,.86);backdrop-filter:blur(18px);
}
.brand{display:flex;align-items:center;gap:10px;font-weight:700;letter-spacing:-.02em}
.brand-mark{
  display:grid;place-items:center;width:34px;height:34px;
  border:1px solid var(--accent);border-radius:9px;color:var(--accent);
  font:700 13px/1 ui-monospace,SFMono-Regular,Menlo,monospace;
}
.site-nav{display:flex;gap:26px;font-size:14px;color:var(--muted)}
.site-nav a:hover{color:var(--text)}
.nav-toggle{display:none;border:0;background:none;color:var(--text)}
main{overflow:hidden}
.hero{
  position:relative;min-height:760px;padding:110px max(24px,calc((100vw - var(--max))/2)) 80px;
  display:flex;flex-direction:column;justify-content:center;border-bottom:1px solid var(--line);
}
.hero-grid{
  position:absolute;inset:0;pointer-events:none;opacity:.24;
  background:
    linear-gradient(rgba(255,255,255,.055) 1px,transparent 1px),
    linear-gradient(90deg,rgba(255,255,255,.055) 1px,transparent 1px);
  background-size:64px 64px;
  mask-image:linear-gradient(to bottom,#000,transparent 92%);
}
.hero:after{
  content:"";position:absolute;width:560px;height:560px;right:-120px;top:80px;border-radius:50%;
  background:radial-gradient(circle,rgba(126,231,135,.14),rgba(120,220,232,.05) 40%,transparent 70%);
  filter:blur(8px);
}
.eyebrow,.section-index{
  position:relative;z-index:1;color:var(--accent);font:600 12px/1.2 ui-monospace,SFMono-Regular,Menlo,monospace;
  letter-spacing:.12em;text-transform:uppercase;
}
.hero h1{
  position:relative;z-index:1;margin:28px 0 26px;max-width:960px;
  font-size:clamp(52px,7.8vw,104px);line-height:1.03;letter-spacing:-.065em;
}
.hero-lead{position:relative;z-index:1;max-width:720px;font-size:20px;color:var(--muted)}
.hero-actions{position:relative;z-index:1;display:flex;gap:12px;margin-top:28px}
.button{display:inline-flex;padding:12px 17px;border-radius:10px;border:1px solid var(--line);font-weight:650;font-size:14px}
.button.primary{background:var(--text);color:var(--bg);border-color:var(--text)}
.button.secondary:hover{background:var(--surface-2)}
.signal-row{
  position:relative;z-index:1;display:flex;gap:10px;flex-wrap:wrap;margin-top:64px;
  color:var(--muted);font:500 12px ui-monospace,SFMono-Regular,Menlo,monospace;
}
.signal-row span{padding:7px 10px;border:1px solid var(--line);border-radius:99px;background:rgba(17,22,29,.72)}
.section{
  max-width:var(--max);margin:0 auto;padding:108px 24px;border-bottom:1px solid var(--line);
}
.split{display:grid;grid-template-columns:1fr 1fr;gap:90px}
.section h2{font-size:clamp(38px,5vw,68px);line-height:1.1;letter-spacing:-.055em;margin:24px 0 0}
.section-copy{padding-top:42px;color:var(--muted);font-size:18px}
.callout{margin-top:32px;padding:20px;border-left:2px solid var(--accent);background:var(--surface);color:var(--text);font:500 13px/1.8 ui-monospace,SFMono-Regular,Menlo,monospace}
.section-heading-row{display:flex;justify-content:space-between;align-items:end;gap:40px;margin:20px 0 48px}
.section-heading-row p{max-width:430px;color:var(--muted)}
.card-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:14px}
.card{
  min-height:300px;padding:24px;display:flex;flex-direction:column;
  border:1px solid var(--line);border-radius:16px;background:linear-gradient(180deg,var(--surface),rgba(17,22,29,.5));
  transition:.2s ease;
}
.card:hover{transform:translateY(-3px);border-color:#405064}
.card-featured{grid-column:span 2;background:linear-gradient(135deg,#14201a,var(--surface) 60%)}
.card-meta{display:flex;justify-content:space-between;gap:10px;color:var(--muted);font:500 11px ui-monospace,SFMono-Regular,Menlo,monospace;text-transform:uppercase}
.card h3{font-size:27px;letter-spacing:-.04em;margin:62px 0 8px}
.card p{margin:0;color:var(--muted)}
.card a{margin-top:auto;padding-top:28px;font-size:13px;color:var(--accent)}
.research-section{max-width:none;padding-left:max(24px,calc((100vw - var(--max))/2));padding-right:max(24px,calc((100vw - var(--max))/2));background:#0d1117}
.research-list{margin-top:38px;border-top:1px solid var(--line)}
.research-list article{
  display:grid;grid-template-columns:110px 1fr;gap:24px;padding:28px 0;border-bottom:1px solid var(--line)
}
.research-no{color:var(--accent-2);font:600 12px ui-monospace,SFMono-Regular,Menlo,monospace}
.research-list h3{margin:0 0 5px;font-size:25px;letter-spacing:-.035em}
.research-list p{margin:0;color:var(--muted)}
.timeline{margin-top:40px;border-top:1px solid var(--line)}
.timeline article{display:grid;grid-template-columns:100px 1fr auto;gap:24px;align-items:start;padding:28px 0;border-bottom:1px solid var(--line)}
.timeline time{color:var(--muted);font:500 12px ui-monospace,SFMono-Regular,Menlo,monospace}
.timeline h3{margin:0;font-size:24px}
.timeline p{margin:5px 0 0;color:var(--muted)}
.tag{padding:5px 9px;border:1px solid var(--line);border-radius:99px;color:var(--muted);font-size:11px}
.journal-section{border-bottom:0}
.journal-panel{
  margin-top:28px;padding:46px;border:1px solid var(--line);border-radius:20px;
  display:grid;grid-template-columns:1fr 1fr;gap:60px;background:linear-gradient(135deg,var(--surface),#10161b)
}
.journal-panel h2{margin:0 0 18px}
.journal-panel p{color:var(--muted);max-width:470px}
.journal-links{display:flex;flex-direction:column;border-top:1px solid var(--line)}
.journal-links a{display:grid;grid-template-columns:90px 1fr auto;gap:20px;padding:20px 0;border-bottom:1px solid var(--line);align-items:center}
.journal-links span{font-size:12px;color:var(--muted)}
.journal-links strong{font-size:15px}
.site-footer{
  max-width:var(--max);margin:0 auto;padding:54px 24px 70px;display:flex;justify-content:space-between;gap:30px;color:var(--muted)
}
.footer-brand{color:var(--text)}
.site-footer p{margin:14px 0 0}
.footer-meta{display:flex;flex-direction:column;gap:8px;text-align:right;font-size:12px}
@media (max-width:900px){
  .site-nav{display:none;position:absolute;top:72px;left:0;right:0;padding:18px 24px;background:var(--bg);border-bottom:1px solid var(--line);flex-direction:column}
  .site-nav.open{display:flex}.nav-toggle{display:block}
  .hero{min-height:680px;padding-top:92px}.hero h1{font-size:clamp(48px,13vw,76px)}
  .split,.journal-panel{grid-template-columns:1fr;gap:26px}.section-copy{padding-top:0}
  .section-heading-row{align-items:start;flex-direction:column}.card-grid{grid-template-columns:1fr 1fr}.card-featured{grid-column:span 2}
}
@media (max-width:620px){
  .hero{min-height:620px}.hero-lead{font-size:17px}.hero-actions{flex-direction:column;align-items:flex-start}
  .section{padding-top:76px;padding-bottom:76px}.card-grid{grid-template-columns:1fr}.card-featured{grid-column:auto}.card{min-height:260px}
  .timeline article{grid-template-columns:62px 1fr}.timeline .tag{display:none}
  .journal-panel{padding:28px}.journal-links a{grid-template-columns:70px 1fr auto}
  .site-footer{flex-direction:column}.footer-meta{text-align:left}
}