:root{
  --bg:#F7F5F2;
  --panel:#FBF9F5;
  --text-strong:#17130F;
  --text-body:#4A433D;
  --text-muted:#857B73;
  --line:#DDD6CE;
  --dark:#17130F;
  --text-on-dark-strong:#FFFFFF;
  --text-on-dark:#FAF9F7;
  --text-on-dark-muted:#D8CDC1;
  --line-on-dark:rgba(255,255,255,0.10);
}
*{box-sizing:border-box}
html,body{margin:0;padding:0;background:var(--bg);color:var(--text-strong);font-family:Inter,ui-sans-serif,system-ui,-apple-system,Segoe UI,Roboto,Helvetica,Arial,sans-serif}
a{color:inherit;text-decoration:none}
img{max-width:100%;display:block}
.wrap{max-width:1200px;margin:0 auto;padding:0 24px}
.site-header{position:sticky;top:0;z-index:50;border-bottom:1px solid var(--line);background:rgba(247,245,242,.92);backdrop-filter:blur(10px)}
.topbar{display:flex;justify-content:space-between;align-items:center;gap:24px;padding:18px 0}
.brand-eyebrow{font-size:11px;letter-spacing:.34em;text-transform:uppercase;color:var(--text-muted)}
.brand-name{margin-top:4px;font-size:18px;font-weight:600;letter-spacing:-.02em}
.nav{display:flex;gap:24px;align-items:center}
.nav a{font-size:14px;color:#5f5650}
.nav a:hover{color:var(--text-strong)}
.button{display:inline-flex;align-items:center;justify-content:center;border-radius:999px;padding:13px 18px;font-size:14px;font-weight:600;transition:.15s ease;border:1px solid var(--dark)}
.button:hover{transform:translateY(-1px)}
.button.primary{background:var(--dark);color:var(--bg)}
.button.secondary{background:transparent;color:var(--dark)}



.hero{padding:24px 0 50px;border-bottom:1px solid var(--line)}
.hero-grid{display:grid;grid-template-columns:1fr 1.02fr;gap:28px;align-items:start}
h1,h2,h3{font-family:Georgia,"Times New Roman",serif;margin:0}
h1{font-size:clamp(44px,7vw,82px);line-height:1.01;letter-spacing:-.045em}
h2{font-size:clamp(30px,4.5vw,58px);line-height:1.05;letter-spacing:-.035em}
h3{font-size:28px;letter-spacing:-.02em}
.lead{margin-top:26px;max-width:760px;font-size:21px;line-height:1.78;color:var(--text-body)}
.eyebrow{font-size:11px;letter-spacing:.3em;text-transform:uppercase;color:var(--text-muted)}

.hero .eyebrow {
  margin-bottom: 8px;
}

.hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:28px}


.grid-2{display:grid;grid-template-columns:1fr 1fr;gap:18px}
.stack {
  display: flex;
  flex-direction: column;
  gap: 24px;
}
.grid-3{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}


.stat-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:16px;margin-top:32px}
.stat{border:1px solid var(--line);background:var(--panel);border-radius:24px;padding:18px 20px}
.stat .label{font-size:11px;letter-spacing:.28em;text-transform:uppercase;color:var(--text-muted)}
.stat .value{margin-top:10px;font-size:18px;line-height:1.55;color:var(--text-strong)}
.section{padding:72px 0;border-bottom:1px solid var(--line)}
.card{border:1px solid var(--line);background:var(--panel);border-radius:28px;padding:24px}
.card.white{background:#FFFFFF}
.card p,.copy{margin:16px 0 0;font-size:17px;line-height:1.8;color:var(--text-body)}
.kicker{font-size:11px;letter-spacing:.3em;text-transform:uppercase;color:var(--text-muted);margin-bottom:12px}
.list{margin:16px 0 0;padding:0;list-style:none;display:grid;gap:12px}
.list li{border:1px solid #E4DDD4;background:#fff;border-radius:16px;padding:14px 16px;font-size:15px;line-height:1.65;color:#433C37}
.system-rail{display:grid;gap:14px}


.system-row{
  display:grid;
  grid-template-columns:180px 1fr;
  gap:18px;
  align-items:start;
  background:#FCFAF7;
  border:1px solid #E7DFD6;
  border-radius:20px;
  padding:18px;
}


.system-row .system-name{font-size:13px;letter-spacing:.24em;text-transform:uppercase;color:var(--text-muted)}
.system-row .system-body{font-size:16px;line-height:1.75;color:var(--text-body)}
.notice{margin-top:18px;padding:16px 18px;border-left:3px solid var(--dark);background:#ECE4D8;border-radius:0 16px 16px 0;color:var(--text-body);font-size:16px;line-height:1.7}


.link-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.link-card{border:1px solid var(--line);background:#fff;border-radius:24px;padding:22px;display:flex;flex-direction:column;gap:14px}
.link-card .meta{font-size:11px;letter-spacing:.28em;text-transform:uppercase;color:var(--text-muted)}
.link-card .body{font-size:16px;line-height:1.75;color:var(--text-body)}
.link-card .arrow{margin-top:auto;font-size:14px;color:var(--text-muted)}
.footer{padding:30px 0 48px;color:var(--text-muted);font-size:14px;line-height:1.8}
.page-intro{padding:72px 0 34px}

.link-card {
  transition: transform 0.15s ease, box-shadow 0.15s ease;
}

.link-card:hover {
  transform: translateY(-2px);
  box-shadow: 0 12px 28px rgba(0,0,0,0.08);
}


.dark-band{background:var(--dark);color:var(--text-on-dark)}
.dark-band h1,.dark-band h2,.dark-band h3{color:var(--text-on-dark-strong)}
.dark-band .eyebrow,.dark-band .kicker,.dark-band .meta{color:var(--text-on-dark-muted)}
.dark-band .card{background:rgba(255,255,255,.05);border-color:var(--line-on-dark)}
.dark-band .copy,.dark-band p,.dark-band .body{color:var(--text-on-dark)}


.definition-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:16px;margin-top:28px}
.definition-card{border:1px solid var(--line);background:#fff;border-radius:22px;padding:18px}


.definition-card {
  transition: transform 0.15s ease, box-shadow 0.15s ease;
}

.definition-card:hover {
  transform: translateY(-1.5px);
  box-shadow: 0 8px 18px rgba(0,0,0,0.05);
}


.definition-card h4{margin:0;font-size:12px;letter-spacing:.26em;text-transform:uppercase;color:var(--text-muted);font-family:inherit}
.definition-card p{margin:12px 0 0;color:var(--text-body);font-size:15px;line-height:1.7}
@media (max-width:980px){
  .hero-grid,.grid-2,.grid-3,.link-grid,.stat-grid,.definition-grid{grid-template-columns:1fr}
  .system-row{grid-template-columns:1fr}
}
@media (max-width:760px){
  .topbar{flex-direction:column;align-items:flex-start}
  .nav{flex-wrap:wrap;gap:14px}
}


/* v7 contrast fix: white cards inside dark sections should use light-surface text colors */
.dark-band .link-card{
  background:#FFFFFF;
  border:1px solid var(--line);
}
.dark-band .link-card h3{
  color:var(--text-strong);
}
.dark-band .link-card .body{
  color:var(--text-body);
}
.dark-band .link-card .meta,
.dark-band .link-card .arrow{
  color:var(--text-muted);
}


/* v8 polish */
.definition-card p,
.list li,
.copy,
.lead,
.system-row .system-body,
.link-card .body{
  word-spacing: 0.01em;
}

.grid-3 .card{
  min-height: 100%;
}

@media print {
  .hero-actions { margin-top: 24px; }
  .grid-3 { gap: 20px; }
}



/* ===== HERO VIDEO (Axiometric Brain) ===== */

.hero-media {
  width: 100%;
  max-width: 660px;
  margin-left: auto;
  margin-bottom: 0;
  border-radius: 18px 18px 14px 14px;
  overflow: hidden;
  background: #0b0d12;
  box-shadow: 0 20px 60px rgba(0,0,0,0.15);
}

.hero-video {
  width: 100%;
  height: auto;
  display: block;
  aspect-ratio: 4 / 3;
  object-fit: cover;
}

.hero-structure-card {
  margin-top: 4px;
  border-top-left-radius: 14px;
  border-top-right-radius: 14px;
  margin-bottom: 10px;
}

.hero-structure-card .kicker {
  margin-bottom: 10px;
}

.lift {
  transition: transform 0.15s ease, box-shadow 0.15s ease;
}

.lift:hover {
  transform: translateY(-2px);
  box-shadow: 0 10px 24px rgba(0,0,0,0.06);
}