/* ============================================================
   AGENT SMITH — site design system  ·  "The Instrument"
   Self-contained. No external requests. No CDN.
   Display: Space Grotesk · Body: IBM Plex Sans · Record: IBM Plex Mono
   ============================================================ */

/* ---------- fonts (self-hosted) ---------- */
@font-face{font-family:"Space Grotesk";src:url("fonts/space-grotesk-latin-400-normal.woff2") format("woff2");font-weight:400;font-style:normal;font-display:swap}
@font-face{font-family:"Space Grotesk";src:url("fonts/space-grotesk-latin-500-normal.woff2") format("woff2");font-weight:500;font-style:normal;font-display:swap}
@font-face{font-family:"Space Grotesk";src:url("fonts/space-grotesk-latin-700-normal.woff2") format("woff2");font-weight:700;font-style:normal;font-display:swap}
@font-face{font-family:"Plex Sans";src:url("fonts/ibm-plex-sans-latin-400-normal.woff2") format("woff2");font-weight:400;font-style:normal;font-display:swap}
@font-face{font-family:"Plex Sans";src:url("fonts/ibm-plex-sans-latin-500-normal.woff2") format("woff2");font-weight:500;font-style:normal;font-display:swap}
@font-face{font-family:"Plex Sans";src:url("fonts/ibm-plex-sans-latin-600-normal.woff2") format("woff2");font-weight:600;font-style:normal;font-display:swap}
@font-face{font-family:"Plex Mono";src:url("fonts/ibm-plex-mono-latin-400-normal.woff2") format("woff2");font-weight:400;font-style:normal;font-display:swap}
@font-face{font-family:"Plex Mono";src:url("fonts/ibm-plex-mono-latin-500-normal.woff2") format("woff2");font-weight:500;font-style:normal;font-display:swap}
@font-face{font-family:"Plex Mono";src:url("fonts/ibm-plex-mono-latin-600-normal.woff2") format("woff2");font-weight:600;font-style:normal;font-display:swap}

/* ---------- tokens ---------- */
:root{
  --bg:#0A0C10; --bg-1:#0F141A; --bg-2:#151B23; --bg-3:#1A222B;
  --line:#20272F; --line-2:#2C353F;
  --ink:#E7EAEE; --ink-2:#9AA4B0; --ink-3:#626D79;
  --signal:#ECB24C; --signal-2:#caa05a; --signal-soft:rgba(236,178,76,.12); --signal-line:rgba(236,178,76,.34);
  --dove:#C9C7C1; --dove-dim:#8E8C86;
  --verified:#66B98C; --verified-soft:rgba(102,185,140,.12);
  --halt:#D86B5C; --halt-soft:rgba(216,107,92,.12);
  --font-display:"Space Grotesk", ui-sans-serif, system-ui, sans-serif;
  --font-body:"Plex Sans", ui-sans-serif, system-ui, -apple-system, "Segoe UI", sans-serif;
  --font-mono:"Plex Mono", ui-monospace, "SF Mono", "Cascadia Code", Menlo, Consolas, monospace;
  --wrap:1140px; --wrap-narrow:780px;
  --r:3px; /* deliberately tight radii — instrument, not app */
  --ease:cubic-bezier(.2,.6,.2,1);
}

/* ---------- reset / base ---------- */
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
@media (prefers-reduced-motion:reduce){html{scroll-behavior:auto}*{animation-duration:.001ms!important;animation-iteration-count:1!important;transition-duration:.001ms!important}}
body{margin:0;background:var(--bg);color:var(--ink);font-family:var(--font-body);
  font-size:1.0625rem;line-height:1.62;font-weight:400;
  -webkit-font-smoothing:antialiased;text-rendering:optimizeLegibility;
  background:#07090C;}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
::selection{background:var(--signal);color:#10130c}
:focus-visible{outline:2px solid var(--signal);outline-offset:3px;border-radius:2px}
hr,.rule{border:0;border-top:1px solid var(--line);margin:0}

/* ---------- layout ---------- */
.wrap{max-width:var(--wrap);margin-inline:auto;padding-inline:28px}
.narrow{max-width:var(--wrap-narrow)}
.section{padding-block:clamp(64px,9vw,118px)}
.section--tight{padding-block:clamp(44px,6vw,72px)}
.divline{border-top:1px solid var(--line)}

/* ---------- type ---------- */
.eyebrow{font-family:var(--font-mono);font-size:.72rem;font-weight:500;letter-spacing:.16em;
  text-transform:uppercase;color:var(--signal-2);display:inline-flex;align-items:center;gap:.6em}
.eyebrow::before{content:"";width:18px;height:1px;background:var(--signal-line)}
.eyebrow--plain::before{display:none}
.display{font-family:var(--font-display);font-weight:700;line-height:1.02;letter-spacing:-.022em;
  font-size:clamp(2.6rem,6.2vw,4.7rem);margin:0}
.h1{font-family:var(--font-display);font-weight:700;line-height:1.06;letter-spacing:-.02em;
  font-size:clamp(2.1rem,4.4vw,3.2rem);margin:0}
.h2{font-family:var(--font-display);font-weight:600;line-height:1.1;letter-spacing:-.015em;
  font-size:clamp(1.55rem,2.7vw,2.1rem);margin:0}
.h3{font-family:var(--font-display);font-weight:600;line-height:1.2;letter-spacing:-.01em;
  font-size:1.22rem;margin:0}
.lede{font-size:clamp(1.12rem,1.7vw,1.32rem);line-height:1.5;color:var(--ink);font-weight:400;letter-spacing:-.006em}
.dim{color:var(--ink-2)}
.faint{color:var(--ink-3)}
.mono{font-family:var(--font-mono)}
.sig{color:var(--signal)}
.prose p{margin:0 0 1.05em;color:var(--ink-2)}
.prose p strong{color:var(--ink);font-weight:600}
.prose p:last-child{margin-bottom:0}
.measure{max-width:64ch}

/* ---------- nav ---------- */
.nav{position:sticky;top:0;z-index:50;background:rgba(10,12,16,.72);
  backdrop-filter:blur(10px);-webkit-backdrop-filter:blur(10px);border-bottom:1px solid var(--line)}
.nav__in{display:flex;align-items:center;gap:30px;height:64px;max-width:var(--wrap);margin-inline:auto;padding-inline:28px}
.brand{display:flex;align-items:center;gap:11px;font-family:var(--font-display);font-weight:600;
  letter-spacing:-.01em;font-size:1.04rem;color:var(--ink)}
.brand__mark{width:30px;height:30px;flex:none}
.nav__links{display:flex;gap:26px;margin-left:auto;align-items:center}
.nav__links a{font-size:.92rem;color:var(--ink-2);transition:color .2s var(--ease)}
.nav__links a:hover{color:var(--ink)}
.nav__cta{margin-left:6px}

/* ---------- buttons ---------- */
.btn{display:inline-flex;align-items:center;gap:.55em;font-family:var(--font-display);font-weight:500;
  font-size:.94rem;letter-spacing:-.005em;padding:.66em 1.15em;border-radius:var(--r);
  border:1px solid transparent;cursor:pointer;transition:all .2s var(--ease);white-space:nowrap}
.btn svg{width:15px;height:15px}
.btn--primary{position:relative;z-index:0;border-color:transparent;
  color:#F3C969;
  text-shadow:0 1px 0 rgba(0,0,0,.55), 0 -1px 0 rgba(255,242,205,.18), 0 0 12px rgba(236,178,76,.32)}
.btn--primary::before{content:"";position:absolute;inset:0;z-index:-1;border-radius:inherit;
  border:1px solid rgba(236,178,76,.40);
  background:
    radial-gradient(120% 82% at 20% -14%, rgba(255,255,255,.08), transparent 44%),
    linear-gradient(180deg, rgba(255,255,255,.06) 0%, transparent 13%),
    linear-gradient(180deg,#16191f 0%,#0e1015 52%,#0a0c10 100%);
  box-shadow:0 1px 0 rgba(255,255,255,.11) inset, 0 -1px 0 rgba(0,0,0,.5) inset, 0 14px 30px -20px rgba(0,0,0,.92)}
.btn--primary:hover{transform:translateY(-1px);color:#FAD588;
  text-shadow:0 1px 0 rgba(0,0,0,.55), 0 -1px 0 rgba(255,246,220,.25), 0 0 16px rgba(236,178,76,.5)}
.btn--primary:hover::before{border-color:rgba(236,178,76,.72);
  background:
    radial-gradient(120% 82% at 20% -14%, rgba(255,255,255,.11), transparent 46%),
    linear-gradient(180deg, rgba(255,255,255,.07) 0%, transparent 13%),
    linear-gradient(180deg,#1b1f28 0%,#0f1117 52%,#0b0d11 100%)}
.btn--ghost{background:transparent;color:var(--ink);border-color:var(--line-2)}
.btn--ghost:hover{border-color:var(--ink-3);background:var(--bg-1)}
.btn--lg{font-size:1rem;padding:.82em 1.4em}
.linkmore{font-family:var(--font-mono);font-size:.8rem;letter-spacing:.02em;color:var(--signal);
  display:inline-flex;align-items:center;gap:.5em;transition:gap .2s var(--ease)}
.linkmore:hover{gap:.85em}
.linkmore::after{content:"→"}

/* ---------- SIGNATURE: the causal record stub ---------- */
.record{font-family:var(--font-mono);font-size:.82rem;line-height:1.7;background:var(--bg-1);
  border:1px solid var(--line);border-left:2px solid var(--ink-3);border-radius:var(--r);
  padding:16px 18px 15px;position:relative;overflow:hidden}
.record.is-verified{border-left-color:var(--verified)}
.record.is-halt{border-left-color:var(--halt)}
.record.is-signal{border-left-color:var(--signal)}
.record__top{display:flex;justify-content:space-between;align-items:center;gap:14px;
  color:var(--ink-3);font-size:.72rem;letter-spacing:.06em;text-transform:uppercase;
  padding-bottom:9px;margin-bottom:10px;border-bottom:1px dashed var(--line-2)}
.record__id{color:var(--ink-3)}
.record__row{display:flex;gap:10px;color:var(--ink-2)}
.record__k{color:var(--ink-3);flex:none;min-width:104px}
.record__v{color:var(--ink);word-break:break-word}
.record__verdict{display:inline-flex;align-items:center;gap:.5em;margin-top:11px;padding-top:10px;
  border-top:1px dashed var(--line-2);font-weight:500;letter-spacing:.02em}
.tag-pass{color:var(--verified)} .tag-halt{color:var(--halt)} .tag-sig{color:var(--signal)}
.dot{width:7px;height:7px;border-radius:50%;flex:none}
.dot--pass{background:var(--verified);box-shadow:0 0 0 4px var(--verified-soft)}
.dot--halt{background:var(--halt);box-shadow:0 0 0 4px var(--halt-soft)}
.dot--sig{background:var(--signal);box-shadow:0 0 0 4px var(--signal-soft);animation:pulse 2.6s var(--ease) infinite}
@keyframes pulse{0%,100%{box-shadow:0 0 0 3px var(--signal-soft)}50%{box-shadow:0 0 0 7px rgba(236,178,76,.05)}}

/* ---------- hero ---------- */
.hero{padding-top:clamp(56px,8vw,104px);padding-bottom:clamp(52px,7vw,92px);position:relative}
.hero__grid{display:grid;grid-template-columns:1.15fr .85fr;gap:54px;align-items:center}
.hero__head{margin:18px 0 0}
.hero__sub{margin:22px 0 0;max-width:33ch}
.hero__actions{display:flex;gap:12px;margin-top:30px;flex-wrap:wrap}
.hero__meta{margin-top:34px;display:flex;gap:26px;flex-wrap:wrap;font-family:var(--font-mono);
  font-size:.76rem;color:var(--ink-3);letter-spacing:.04em}
.hero__meta span{display:inline-flex;align-items:center;gap:.6em}
.hero__meta span::before{content:"";width:5px;height:5px;border-radius:50%;background:var(--signal)}

/* ---------- hooks wall ---------- */
.band{padding-block:clamp(48px,6vw,80px);border-top:1px solid var(--line)}
.band__head{display:grid;grid-template-columns:1fr;gap:14px;margin-bottom:34px;max-width:62ch}
.band__title{font-family:var(--font-display);font-weight:600;font-size:clamp(1.45rem,2.4vw,1.9rem);letter-spacing:-.015em;line-height:1.12;margin-top:14px}
.band__note{color:var(--ink-2);font-size:1.02rem;line-height:1.5;max-width:52ch}
.band__rule{display:flex;align-items:center;gap:14px;margin-bottom:26px;color:var(--ink-3);font-family:var(--font-mono);font-size:.7rem;letter-spacing:.14em;text-transform:uppercase}
.band__rule::after{content:"";flex:1;height:1px;background:var(--line)}
.hooks{display:grid;grid-template-columns:repeat(2,1fr);gap:14px}
.hook{display:flex;flex-direction:column;background:linear-gradient(180deg,var(--bg-2),var(--bg-1));
  border:1px solid var(--line);border-radius:var(--r);padding:24px 26px 22px;position:relative;overflow:hidden;
  box-shadow:0 1px 0 rgba(255,255,255,.03) inset,0 18px 36px -30px rgba(0,0,0,.9);
  transition:border-color .22s var(--ease),transform .22s var(--ease)}
.hook::before{content:"";position:absolute;left:-1px;top:24px;bottom:24px;width:2px;background:transparent;transition:background .22s var(--ease),top .22s var(--ease),bottom .22s var(--ease)}
.hook:hover{border-color:var(--line-2);transform:translateY(-3px)}
.hook:hover::before{background:var(--signal);top:18px;bottom:18px}
.hook__ix{font-family:var(--font-mono);font-size:.68rem;letter-spacing:.14em;text-transform:uppercase;
  color:var(--ink-3);display:flex;justify-content:space-between;align-items:center;margin-bottom:15px}
.hook__ix .prov{color:var(--signal-2)}
.hook__punch{font-family:var(--font-display);font-weight:600;font-size:1.28rem;line-height:1.18;
  letter-spacing:-.018em;color:var(--ink);margin:0 0 10px}
.hook__claim{font-size:.98rem;line-height:1.5;color:var(--ink-2);margin:0 0 18px}
.hook__more{font-family:var(--font-mono);font-size:.75rem;color:var(--ink-3);display:inline-flex;
  align-items:center;gap:.5em;margin-top:auto;transition:color .2s var(--ease),gap .2s var(--ease)}
.hook__more::after{content:"→"}
.hook:hover .hook__more{color:var(--signal);gap:.85em}

/* ---------- schematic frame ---------- */
.schematic{background:var(--bg-1);border:1px solid var(--line);border-radius:var(--r);padding:26px}
.schematic__cap{font-family:var(--font-mono);font-size:.72rem;letter-spacing:.08em;text-transform:uppercase;
  color:var(--ink-3);margin-top:14px;text-align:center}

/* ---------- pitch header band (feature pages) ---------- */
.pitch{border-top:1px solid var(--line);border-bottom:1px solid var(--line);background:var(--bg-1)}
.pitch__in{max-width:var(--wrap);margin-inline:auto;padding:clamp(40px,6vw,72px) 28px}
.pitch__eyebrow{margin-bottom:20px}
.pitch__para{font-family:var(--font-display);font-weight:400;font-size:clamp(1.32rem,2.4vw,1.85rem);
  line-height:1.4;letter-spacing:-.015em;color:var(--ink);max-width:30ch;max-width:48ch}
.pitch__para strong{font-weight:600;color:#fff}

/* ---------- evidence blocks ---------- */
.evi{display:grid;grid-template-columns:200px 1fr;gap:40px;padding-block:34px;border-top:1px solid var(--line)}
.evi__label{font-family:var(--font-mono);font-size:.74rem;letter-spacing:.1em;text-transform:uppercase;
  color:var(--signal-2);padding-top:4px;position:sticky;top:88px;align-self:start;height:fit-content}
.evi__body :first-child{margin-top:0}
.evi__body h3{margin:26px 0 10px}
.evi__body h3:first-child{margin-top:0}

/* ---------- note / boundary callout ---------- */
.note{border:1px solid var(--line-2);border-left:2px solid var(--signal);background:var(--bg-1);
  border-radius:var(--r);padding:20px 22px}
.note .h3{margin-bottom:8px}
.note p{margin:0;color:var(--ink-2)}

/* ---------- intake stages (a real sequence → numbered) ---------- */
.stage{display:grid;grid-template-columns:62px 1fr;gap:26px;padding-block:30px;border-top:1px solid var(--line);position:relative}
.stage__n{font-family:var(--font-mono);font-size:.78rem;color:var(--signal);letter-spacing:.04em}
.stage__n b{display:block;font-family:var(--font-display);font-size:1.7rem;font-weight:700;color:var(--ink);
  letter-spacing:-.02em;line-height:1;margin-top:6px}
.stage__title{margin-bottom:9px}
.stage__meta{display:flex;gap:18px;flex-wrap:wrap;margin-top:14px;font-family:var(--font-mono);
  font-size:.74rem;color:var(--ink-3);letter-spacing:.03em}
.stage__meta b{color:var(--ink-2);font-weight:500}

/* ---------- figure (big number — used sparingly) ---------- */
.figs{display:grid;grid-template-columns:repeat(3,1fr);gap:1px;background:var(--line);border:1px solid var(--line);border-radius:var(--r);overflow:hidden}
.fig{background:var(--bg-1);padding:26px 24px}
.fig__n{font-family:var(--font-display);font-weight:700;font-size:clamp(1.8rem,3vw,2.5rem);letter-spacing:-.02em;line-height:1}
.fig__l{color:var(--ink-2);font-size:.92rem;margin-top:8px}

/* ---------- footer ---------- */
.foot{border-top:1px solid var(--line);padding-block:54px;color:var(--ink-3);font-size:.9rem}
.foot__grid{display:flex;justify-content:space-between;gap:40px;flex-wrap:wrap}
.foot a{color:var(--ink-2)}.foot a:hover{color:var(--ink)}
.foot__cols{display:flex;gap:60px;flex-wrap:wrap}
.foot__col h4{font-family:var(--font-mono);font-size:.72rem;letter-spacing:.1em;text-transform:uppercase;color:var(--ink-3);margin:0 0 12px;font-weight:500}
.foot__col a{display:block;margin-bottom:8px;font-size:.92rem}

/* ---------- utilities ---------- */
.stack-sm>*+*{margin-top:12px}.stack>*+*{margin-top:20px}.stack-lg>*+*{margin-top:34px}
.grid-2{display:grid;grid-template-columns:1fr 1fr;gap:24px}
.center{text-align:center}
.cta-band{background:var(--bg-1);border:1px solid var(--line);border-radius:var(--r);
  padding:clamp(36px,5vw,60px);text-align:center}
.pill{display:inline-flex;align-items:center;gap:.55em;font-family:var(--font-mono);font-size:.74rem;
  letter-spacing:.06em;color:var(--ink-2);border:1px solid var(--line-2);border-radius:100px;padding:.4em .9em}
.pill .dot{width:6px;height:6px}

/* ---------- responsive ---------- */
@media (max-width:900px){
  .hero__grid{grid-template-columns:1fr;gap:38px}
  .hero__sub{max-width:46ch}
  .hooks{grid-template-columns:1fr}
  .evi{grid-template-columns:1fr;gap:14px}
  .evi__label{position:static;padding-top:0}
  .grid-2,.figs{grid-template-columns:1fr}
  .figs{grid-template-columns:1fr}
  .nav__links{display:none}
  .nav__links.show{display:flex;position:absolute;top:64px;left:0;right:0;flex-direction:column;
    background:var(--bg);border-bottom:1px solid var(--line);padding:18px 28px;gap:16px}
}
@media (max-width:560px){
  .stage{grid-template-columns:1fr;gap:10px}
  .foot__cols{gap:34px}
  .record{font-size:.76rem}
}
.navtoggle{display:none}
@media (max-width:900px){.navtoggle{display:inline-flex;margin-left:auto;background:none;border:1px solid var(--line-2);border-radius:var(--r);color:var(--ink);padding:.4em .7em;cursor:pointer;font-family:var(--font-mono);font-size:.8rem}}

/* =========================================================
   CRAFT LAYER — depth, precision detailing, binding devices
   ========================================================= */

/* material depth + lit top edge on every surface panel */
.record,.schematic,.note,.cta-band,.fig,.arch,.stakes{
  box-shadow:0 1px 0 rgba(255,255,255,.028) inset, 0 22px 46px -32px rgba(0,0,0,.92);}

/* keyword binding — the load-bearing verb, lit so hook & pitch connect */
.kw{color:var(--signal);font-weight:500}
.prose .kw{font-weight:600}

/* hero: engineering grid + register detailing */
.hero{position:relative;overflow:hidden}
.hero__bg{position:absolute;inset:0;z-index:0;pointer-events:none;opacity:.6;
  background-image:
    linear-gradient(rgba(255,255,255,.022) 1px,transparent 1px),
    linear-gradient(90deg,rgba(255,255,255,.022) 1px,transparent 1px);
  background-size:46px 46px;
  -webkit-mask-image:radial-gradient(82% 78% at 72% 14%,#000 0%,transparent 72%);
  mask-image:radial-gradient(82% 78% at 72% 14%,#000 0%,transparent 72%);}
.hero .wrap{position:relative;z-index:1}

/* the record stream — connected, not floating */
.stream{position:relative}
.stream::before{content:"";position:absolute;left:-15px;top:8px;bottom:48px;width:1px;
  background:linear-gradient(180deg,transparent,var(--line-2) 12%,var(--line-2) 88%,transparent)}
.stream__node{position:relative}
.stream__node::before{content:"";position:absolute;left:-19px;top:22px;width:9px;height:9px;border-radius:50%;
  background:var(--bg);border:1px solid var(--line-2)}
.stream__node.is-verified::before{border-color:var(--verified)}
.stream__node.is-halt::before{border-color:var(--halt)}

/* eyebrow as a precise register tag (used for section indices) */
.ix{font-family:var(--font-mono);font-size:.72rem;letter-spacing:.16em;text-transform:uppercase;color:var(--signal-2);
  display:inline-flex;align-items:center;gap:.7em}
.ix b{color:var(--ink);font-weight:600}
.ix::before{content:"";width:22px;height:1px;background:var(--signal-line)}

/* STAKES band — the qualifying punch, surfaced high */
.stakes{border:1px solid var(--line-2);border-radius:var(--r);overflow:hidden;
  background:linear-gradient(180deg,rgba(236,178,76,.05),var(--bg-1) 42%);position:relative}
.stakes::before{content:"";position:absolute;left:0;top:0;bottom:0;width:3px;background:var(--signal)}
.stakes__in{padding:clamp(34px,5vw,54px) clamp(30px,5vw,56px)}
.stakes__punch{font-family:var(--font-display);font-weight:700;letter-spacing:-.02em;line-height:1.06;
  font-size:clamp(1.9rem,3.6vw,2.9rem);margin:16px 0 0;max-width:20ch}
.stakes__grid{display:grid;grid-template-columns:1.05fr .95fr;gap:40px;align-items:end;margin-top:24px}
.stakes__expand{color:var(--ink-2);font-size:1.06rem;line-height:1.55;max-width:50ch}
.stakes__expand strong{color:var(--ink);font-weight:600}
.stakes__cta{display:flex;flex-direction:column;gap:14px;align-items:flex-start}

/* ARCHITECTURE diagram frame */
.arch{background:linear-gradient(180deg,var(--bg-2),var(--bg-1));border:1px solid var(--line);border-radius:var(--r);
  padding:clamp(26px,4vw,42px)}
.arch svg{width:100%;height:auto;display:block}
.arch__legend{display:flex;gap:26px;flex-wrap:wrap;margin-top:22px;padding-top:20px;border-top:1px solid var(--line);
  font-family:var(--font-mono);font-size:.74rem;color:var(--ink-3);letter-spacing:.03em}
.arch__legend b{color:var(--ink-2);font-weight:500}

/* section eyebrow with a true index */
.sec-ix{font-family:var(--font-mono);font-size:.72rem;letter-spacing:.14em;text-transform:uppercase;color:var(--signal-2)}

/* hairline section divider with centered label */
.tween{display:flex;align-items:center;gap:18px;color:var(--ink-3);font-family:var(--font-mono);
  font-size:.7rem;letter-spacing:.16em;text-transform:uppercase}
.tween::before,.tween::after{content:"";flex:1;height:1px;background:var(--line)}

@media (max-width:760px){
  .stakes__grid{grid-template-columns:1fr;gap:24px;align-items:start}
  .stream::before{left:-12px}
}

/* architecture: the four mandatory passes as a connected instrument panel */
.arch__flow{display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;
  font-family:var(--font-mono);font-size:.74rem;letter-spacing:.1em;text-transform:uppercase;color:var(--ink-3);margin-bottom:20px}
.arch__flow b{color:var(--signal-2);font-weight:500}
.gates{display:grid;grid-template-columns:repeat(4,1fr);gap:1px;background:var(--line);border:1px solid var(--line);border-radius:var(--r);overflow:hidden}
.gate{background:linear-gradient(180deg,var(--bg-2),var(--bg-1));padding:22px 20px 20px;position:relative}
.gate__n{font-family:var(--font-mono);font-size:.7rem;letter-spacing:.1em;color:var(--ink-3)}
.gate__t{font-family:var(--font-display);font-weight:600;font-size:1.12rem;letter-spacing:-.01em;color:var(--ink);margin:12px 0 8px;
  display:flex;align-items:center;gap:.5em}
.gate__t .dot{width:6px;height:6px}
.gate__d{font-size:.9rem;line-height:1.45;color:var(--ink-2)}
.arch__foot{display:flex;align-items:center;gap:.7em;margin-top:20px;font-family:var(--font-mono);
  font-size:.76rem;color:var(--ink-3);letter-spacing:.02em}
.arch__foot .dot{width:6px;height:6px;background:var(--signal)}
@media (max-width:720px){.gates{grid-template-columns:1fr 1fr}}
@media (max-width:440px){.gates{grid-template-columns:1fr}}

/* =========================================================
   COMPOSITION VARIETY — distinct section shapes, one system
   ========================================================= */

/* full-bleed faint fill, for value rhythm between sections */
.fill{background:linear-gradient(180deg,var(--bg-1),var(--bg));border-top:1px solid var(--line);border-bottom:1px solid var(--line)}

/* STATEMENT — sparse, oversized single thesis */
.statement{padding-block:clamp(74px,11vw,150px)}
.statement__lead{font-family:var(--font-display);font-weight:600;letter-spacing:-.022em;line-height:1.1;
  font-size:clamp(2rem,4.6vw,3.5rem);max-width:22ch;margin:20px 0 0}
.statement__lead .kw{color:var(--signal)}
.statement__sub{color:var(--ink-2);font-size:1.12rem;line-height:1.55;max-width:56ch;margin-top:26px}

/* SPOTLIGHT — asymmetric marquee feature */
.spotlight{padding-block:clamp(58px,8vw,108px);border-top:1px solid var(--line)}
.spotlight__grid{display:grid;grid-template-columns:1.02fr .98fr;gap:clamp(38px,6vw,82px);align-items:center}
.spotlight__art{order:2}
.spotlight--mirror .spotlight__art{order:0}
.spotlight--mirror .spotlight__text{order:1}
.spotlight__title{font-family:var(--font-display);font-weight:700;letter-spacing:-.02em;line-height:1.08;
  font-size:clamp(1.7rem,3vw,2.5rem);max-width:15ch;margin:16px 0 18px}
.spotlight__title .sig{color:var(--signal)}
.spotlight__body p{color:var(--ink-2);margin:0 0 14px;max-width:46ch;line-height:1.6}
.spotlight__body p strong{color:var(--ink);font-weight:600}
@media(max-width:880px){.spotlight__grid{grid-template-columns:1fr;gap:30px}
  .spotlight__art,.spotlight--mirror .spotlight__art{order:0}}

/* LEDGER — dense indexed spec sheet of every guarantee */
.ledgrp__h{display:flex;align-items:baseline;gap:14px;padding:30px 0 4px}
.ledgrp__ix{font-family:var(--font-mono);font-size:.72rem;letter-spacing:.14em;text-transform:uppercase;color:var(--signal-2)}
.ledgrp__t{font-family:var(--font-display);font-weight:600;font-size:1.18rem;letter-spacing:-.012em;color:var(--ink)}
.led-row{display:grid;grid-template-columns:120px 1fr 26px;gap:clamp(16px,3vw,40px);align-items:start;
  padding:22px 8px 22px 0;border-top:1px solid var(--line);position:relative;text-decoration:none;
  transition:background .2s var(--ease)}
.led-row:hover{background:linear-gradient(90deg,rgba(236,178,76,.045),transparent 55%)}
.led-row::before{content:"";position:absolute;left:-9px;top:50%;transform:translateY(-50%);width:2px;height:0;
  background:var(--signal);transition:height .22s var(--ease)}
.led-row:hover::before{height:58%}
.led__k{font-family:var(--font-mono);font-size:.73rem;letter-spacing:.06em;text-transform:uppercase;color:var(--ink-3);padding-top:5px}
.led__punch{font-family:var(--font-display);font-weight:600;font-size:1.16rem;letter-spacing:-.012em;color:var(--ink);margin:0 0 6px;line-height:1.22}
.led__claim{color:var(--ink-2);font-size:.97rem;line-height:1.5;max-width:62ch;margin:0}
.led__go{align-self:center;color:var(--ink-3);font-family:var(--font-mono);transition:color .2s var(--ease),transform .2s var(--ease)}
.led-row:hover .led__go{color:var(--signal);transform:translateX(3px)}
@media(max-width:620px){.led-row{grid-template-columns:1fr;gap:7px;padding-right:0}.led__go{display:none}}

/* slim figure row (numeric rhythm) */
.statline{display:grid;grid-template-columns:repeat(3,1fr);gap:clamp(20px,4vw,56px);border-top:1px solid var(--line);padding-top:34px}
.statline .fig__n{font-family:var(--font-display);font-weight:700;font-size:clamp(2rem,3.4vw,2.9rem);letter-spacing:-.02em;line-height:1;color:var(--signal)}
.statline .fig__l{color:var(--ink-2);font-size:.96rem;line-height:1.45;margin-top:10px;max-width:30ch}
@media(max-width:680px){.statline{grid-template-columns:1fr;gap:26px}}

/* =========================================================
   MODULE DIAGRAMS — a distinct shape per capability
   ========================================================= */

/* --- PIPELINE: every operation flows through four passes --- */
.pipe{display:flex;align-items:stretch;gap:0;flex-wrap:nowrap}
.pipe__op,.pipe__out{flex:0 0 auto;align-self:center;font-family:var(--font-mono);font-size:.7rem;letter-spacing:.08em;
  text-transform:uppercase;color:var(--ink-2);border:1px solid var(--line-2);border-radius:var(--r);
  padding:14px 12px;text-align:center;background:var(--bg-1);width:96px;line-height:1.35}
.pipe__out{color:var(--signal-2);border-color:var(--signal-line)}
.pipe__gate{flex:1 1 0;min-width:0;background:linear-gradient(180deg,var(--bg-2),var(--bg-1));
  border:1px solid var(--line);border-radius:var(--r);padding:16px 15px 15px;
  box-shadow:0 1px 0 rgba(255,255,255,.03) inset}
.pipe__gn{font-family:var(--font-mono);font-size:.64rem;letter-spacing:.1em;color:var(--ink-3)}
.pipe__gt{font-family:var(--font-display);font-weight:600;font-size:1rem;color:var(--ink);margin:9px 0 6px;
  display:flex;align-items:center;gap:.45em}
.pipe__gt .dot{width:6px;height:6px}
.pipe__gd{font-size:.8rem;line-height:1.42;color:var(--ink-2)}
.pipe__arr{flex:0 0 auto;align-self:center;color:var(--signal);padding:0 8px;font-family:var(--font-mono);font-size:.9rem}
@media(max-width:860px){.pipe{flex-direction:column}.pipe__op,.pipe__out{width:auto}
  .pipe__arr{transform:rotate(90deg);padding:7px 0;align-self:center}}

/* --- GROUNDING FLOW: claim -> re-read -> kept/discarded --- */
.gflow{display:flex;align-items:center;justify-content:center;gap:0;flex-wrap:wrap}
.gnode{background:var(--bg-1);border:1px solid var(--line-2);border-radius:var(--r);padding:16px 18px;
  font-family:var(--font-mono);font-size:.82rem;color:var(--ink);text-align:center;min-width:150px;line-height:1.4}
.gnode small{display:block;color:var(--ink-3);font-size:.72rem;margin-top:5px}
.garr{color:var(--signal);padding:0 16px;font-size:1.05rem;font-family:var(--font-mono)}
.gfork{display:flex;flex-direction:column;gap:11px}
.gout{font-family:var(--font-mono);font-size:.8rem;border:1px solid var(--line);border-left-width:2px;
  border-radius:var(--r);padding:11px 15px;display:flex;align-items:center;gap:.6em;background:var(--bg-1)}
.gout.ok{border-left-color:var(--verified);color:var(--verified)}
.gout.no{border-left-color:var(--halt);color:var(--halt)}
@media(max-width:760px){.gflow{flex-direction:column}.garr{transform:rotate(90deg);padding:10px 0}}

/* --- LAYER LAW: two-domain split panel --- */
.law{display:grid;grid-template-columns:1fr 1fr;border:1px solid var(--line);border-radius:var(--r);overflow:hidden}
.law__col{padding:26px 26px 28px;background:linear-gradient(180deg,var(--bg-2),var(--bg-1))}
.law__col + .law__col{border-left:1px solid var(--line)}
.law__h{font-family:var(--font-mono);font-size:.72rem;letter-spacing:.1em;text-transform:uppercase;margin-bottom:6px;
  display:flex;align-items:center;gap:.5em}
.law__sub{color:var(--ink-3);font-size:.86rem;margin:0 0 16px}
.law--code .law__h{color:var(--verified)}
.law--mind .law__h{color:var(--signal)}
.law__li{padding:11px 0;border-top:1px solid var(--line);font-size:.98rem;color:var(--ink);display:flex;gap:.6em;align-items:baseline}
.law__li .k{font-family:var(--font-mono);font-size:.72rem;color:var(--ink-3);flex:0 0 auto}
@media(max-width:680px){.law{grid-template-columns:1fr}.law__col + .law__col{border-left:0;border-top:1px solid var(--line)}}

/* --- PERIMETER: containment boundary --- */
.perim{position:relative;border:1.5px dashed var(--line-2);border-radius:8px;padding:30px 26px 26px;
  background:radial-gradient(130% 120% at 50% -10%,rgba(236,178,76,.05),transparent 58%)}
.perim__tag{position:absolute;top:-10px;left:22px;background:var(--bg);padding:0 11px;font-family:var(--font-mono);
  font-size:.7rem;letter-spacing:.14em;text-transform:uppercase;color:var(--signal-2)}
.perim__row{display:flex;gap:12px;flex-wrap:wrap;justify-content:center}
.perim__chip{background:var(--bg-2);border:1px solid var(--line-2);border-radius:var(--r);padding:15px 20px;
  font-family:var(--font-mono);font-size:.84rem;color:var(--ink);text-align:center;min-width:128px;
  box-shadow:0 1px 0 rgba(255,255,255,.03) inset}
.perim__chip small{display:block;color:var(--ink-3);font-size:.7rem;margin-top:4px;letter-spacing:.02em}
.perim__gate{margin-top:18px;display:flex;align-items:center;justify-content:center;gap:.6em;
  font-family:var(--font-mono);font-size:.78rem;color:var(--ink-2)}
.perim__gate .dot{width:6px;height:6px;background:var(--signal)}
.perim__out{text-align:center;color:var(--ink-3);font-family:var(--font-mono);font-size:.74rem;margin:16px 0 0}

/* --- CHIP ROW: the remaining guarantees, compact --- */
.chips-row{display:flex;flex-wrap:wrap;gap:10px}
.chip-lnk{display:inline-flex;align-items:center;gap:.6em;border:1px solid var(--line-2);border-radius:100px;
  padding:.6em 1.05em;font-size:.92rem;color:var(--ink-2);transition:all .2s var(--ease)}
.chip-lnk .k{font-family:var(--font-mono);font-size:.68rem;letter-spacing:.08em;text-transform:uppercase;color:var(--ink-3)}
.chip-lnk:hover{border-color:var(--signal-line);color:var(--ink);background:var(--signal-soft)}
.chip-lnk::after{content:"→";color:var(--ink-3);transition:color .2s var(--ease)}
.chip-lnk:hover::after{color:var(--signal)}

/* =========================================================
   TONAL UNDULATION + LUSTROUS TRIM
   shades of black -> charcoal -> graphite -> slate,
   dove-grey soft highlights, gold as thin brightwork
   ========================================================= */
.S-black{background:#07090C}
.S-base {background:#0B0D12}
.S-char {background:#0F1218}
.S-graph{background:#13141A}        /* graphite, a hair warm */
.S-slate{background:#171A22}        /* lighter cool charcoal */
.S-warm {background:#121110}        /* warm graphite */
/* every tone gets a soft inner top sheen so the seam catches light */
.S-black,.S-base,.S-char,.S-graph,.S-slate,.S-warm{position:relative}
.S-base::after,.S-char::after,.S-graph::after,.S-slate::after,.S-warm::after{
  content:"";position:absolute;left:0;right:0;top:0;height:120px;pointer-events:none;
  background:linear-gradient(180deg,rgba(255,255,255,.014),transparent)}

/* lustrous gold hairline trim — thin brightwork at a section seam */
.trim{position:relative}
.trim::before{content:"";position:absolute;top:0;left:0;right:0;height:1px;z-index:3;
  background:linear-gradient(90deg,transparent,rgba(236,178,76,.5) 22%,rgba(236,178,76,.74) 50%,rgba(236,178,76,.5) 78%,transparent);
  opacity:.8}
/* dove-grey hairline, an alternate seam */
.trim-dove{position:relative}
.trim-dove::before{content:"";position:absolute;top:0;left:0;right:0;height:1px;z-index:3;
  background:linear-gradient(90deg,transparent,rgba(201,199,193,.34) 30%,rgba(201,199,193,.34) 70%,transparent)}

/* dove-grey soft highlights */
.dove{color:var(--dove)}
.eyebrow--dove{color:var(--dove-dim)}
.eyebrow--dove::before{background:rgba(201,199,193,.4)}

/* a faint vertical lustre on the signature panels (brightwork sheen) */
.record,.schematic,.arch,.note,.cta-band,.law,.perim,.pipe__gate,.gnode{
  background-image:linear-gradient(180deg,rgba(255,255,255,.018),transparent 36%)}
/* thin gold left-rail brightwork on the verified record (catches light at the edge) */
.record.is-verified{border-left-color:var(--verified)}
.record.is-signal{box-shadow:inset 2px 0 0 -1px rgba(236,178,76,.5),0 1px 0 rgba(255,255,255,.028) inset,0 22px 46px -32px rgba(0,0,0,.92)}

/* tone-aware panels: on lighter sections, nudge panels darker so they still read as inset */
.S-slate .record,.S-slate .schematic,.S-slate .arch,.S-slate .law,.S-graph .arch{background-color:#0E1117}

/* =========================================================
   MATERIALS — matte damask field vs gloss-black lacquer trim
   ========================================================= */

/* matte black wallpaper with tone-on-tone charcoal fleurettes */
.field-damask{position:relative}
.field-damask::before{content:"";position:absolute;inset:0;pointer-events:none;z-index:0;
  background-image:url("img/damask.svg");background-size:150px 150px;
  -webkit-mask-image:linear-gradient(180deg,#000,#000);mask-image:linear-gradient(180deg,#000,#000)}
.field-damask > *{position:relative;z-index:1}

/* gloss-black lacquer panel: piano-black body, specular top edge, thin gold pinstripe */
.lacquer{position:relative;border-radius:7px;
  background:
    radial-gradient(120% 80% at 18% -10%, rgba(255,255,255,.06), transparent 42%),
    linear-gradient(180deg, rgba(255,255,255,.05) 0%, transparent 12%),
    linear-gradient(180deg, #15181f 0%, #0d0f15 48%, #090b0f 100%);
  border:1px solid rgba(236,178,76,.30);
  box-shadow:
    0 1px 0 rgba(255,255,255,.11) inset,
    0 -1px 0 rgba(0,0,0,.55) inset,
    0 34px 64px -34px rgba(0,0,0,.95);}
.lacquer::after{content:"";position:absolute;inset:0;border-radius:7px;pointer-events:none;
  box-shadow:0 0 0 1px rgba(255,255,255,.025) inset}
/* a brighter gloss for hero/CTA brightwork */
.lacquer--gloss{background:
    radial-gradient(140% 90% at 22% -14%, rgba(255,255,255,.085), transparent 46%),
    linear-gradient(180deg, rgba(255,255,255,.07) 0%, transparent 13%),
    linear-gradient(180deg, #181c24 0%, #0e1016 50%, #0a0c10 100%);
  border-color:rgba(236,178,76,.38)}

/* records read as inset brightwork-trimmed plates on lacquer */
.lacquer .record{background:rgba(8,10,14,.6);border-color:rgba(255,255,255,.06)}

/* =========================================================
   PARALLAX FIELD — one continuous background, drifting slow
   sections become transparent; the field carries the tone +
   damask + ambient glow and moves at a fraction of scroll
   ========================================================= */
.bg-clip{position:fixed;inset:0;z-index:-1;overflow:hidden;pointer-events:none}
.bg-parallax{position:absolute;top:0;left:0;right:0;pointer-events:none;will-change:transform;
  background-image:
    url("img/damask.svg"),
    radial-gradient(1200px 760px at 76% 1%, rgba(236,178,76,.05), transparent 58%),
    linear-gradient(180deg,
      #07090C 0%, #0E1219 12%, #0A0D12 23%, #15191F 36%, #0A0D12 48%,
      #121620 60%, #090C11 72%, #14181F 84%, #090B10 94%, #07090C 100%);
  background-repeat:repeat,no-repeat,no-repeat;
  background-size:150px 150px, 100% 100%, 100% 100%;
  background-position:0 0,0 0,0 0;}

/* tonal sections + per-section damask now defer to the field */
.S-black,.S-base,.S-char,.S-graph,.S-slate,.S-warm{background:transparent}
.S-base::after,.S-char::after,.S-graph::after,.S-slate::after,.S-warm::after{display:none}
.field-damask::before{display:none}
.fill{background:transparent}
@media (prefers-reduced-motion: reduce){.bg-parallax{transform:none!important}}

/* =========================================================
   FEATURE PAGE (lean) — pitch header, short proof, go-deeper
   ========================================================= */
.fhero{padding-top:clamp(44px,7vw,86px);padding-bottom:clamp(34px,5vw,56px)}
.fhero__back{font-family:var(--font-mono);font-size:.76rem;letter-spacing:.04em;color:var(--ink-3);
  display:inline-flex;align-items:center;gap:.5em;margin-bottom:24px;transition:color .2s var(--ease)}
.fhero__back::before{content:"\2190";color:var(--signal)}
.fhero__back:hover{color:var(--ink-2)}
.fhero__pitch{font-family:var(--font-display);font-weight:600;letter-spacing:-.018em;line-height:1.16;
  font-size:clamp(1.7rem,3.4vw,2.7rem);max-width:20ch;margin:16px 0 0}
.fhero__pitch .sig{color:var(--signal)}
.fhero__sub{color:var(--ink-2);font-size:clamp(1.08rem,1.7vw,1.26rem);line-height:1.5;max-width:54ch;margin:22px 0 0}
/* short proof row: a claim + a single artifact, side by side */
.fproof{display:grid;grid-template-columns:1fr .92fr;gap:clamp(34px,5vw,68px);align-items:center;
  padding-block:clamp(40px,6vw,72px)}
.fproof__body p{color:var(--ink-2);margin:0 0 14px;max-width:48ch;line-height:1.6}
.fproof__body p strong{color:var(--ink);font-weight:600}
.fproof__k{font-family:var(--font-mono);font-size:.72rem;letter-spacing:.1em;text-transform:uppercase;color:var(--signal-2);margin-bottom:14px}
@media(max-width:840px){.fproof{grid-template-columns:1fr;gap:26px}}
/* invariant strip — the one guarantee, stated flatly */
.invariant{display:flex;gap:16px;align-items:flex-start;border-top:1px solid var(--line);border-bottom:1px solid var(--line);
  padding:24px 0;margin:0}
.invariant__tag{font-family:var(--font-mono);font-size:.7rem;letter-spacing:.12em;text-transform:uppercase;color:var(--halt);
  flex:0 0 auto;padding-top:3px}
.invariant__txt{font-family:var(--font-display);font-weight:500;font-size:clamp(1.05rem,1.7vw,1.28rem);line-height:1.32;color:var(--ink);letter-spacing:-.01em}
/* go-deeper card */
.deeper{display:flex;align-items:center;justify-content:space-between;gap:24px;flex-wrap:wrap;
  padding:clamp(22px,3vw,30px) clamp(24px,3.4vw,34px)}
.deeper__t{font-family:var(--font-display);font-weight:600;font-size:1.12rem;color:var(--ink);margin:0 0 4px}
.deeper__d{color:var(--ink-2);font-size:.96rem;margin:0;max-width:52ch}
/* prev/next feature nav */
.fnav{display:grid;grid-template-columns:1fr 1fr;gap:14px;padding-block:clamp(30px,4vw,46px)}
.fnav a{display:block;border:1px solid var(--line);border-radius:var(--r);padding:18px 22px;transition:border-color .2s var(--ease),transform .2s var(--ease)}
.fnav a:hover{border-color:var(--line-2);transform:translateY(-2px)}
.fnav__k{font-family:var(--font-mono);font-size:.7rem;letter-spacing:.08em;text-transform:uppercase;color:var(--ink-3);margin-bottom:6px}
.fnav__t{font-family:var(--font-display);font-weight:600;color:var(--ink);font-size:1.04rem}
.fnav--next{text-align:right}
@media(max-width:560px){.fnav{grid-template-columns:1fr}.fnav--next{text-align:left}}

/* nav CTA as a gloss-black lacquer plate — legible, matches the hero plate */
.nav .nav__cta{
  color:var(--ink);
  border:1px solid rgba(236,178,76,.32);
  border-radius:5px;
  background:
    radial-gradient(120% 82% at 20% -12%, rgba(255,255,255,.07), transparent 44%),
    linear-gradient(180deg, rgba(255,255,255,.05) 0%, transparent 13%),
    linear-gradient(180deg,#16191f 0%,#0e1015 52%,#0a0c10 100%);
  box-shadow:0 1px 0 rgba(255,255,255,.10) inset, 0 -1px 0 rgba(0,0,0,.5) inset, 0 10px 22px -16px rgba(0,0,0,.9);
}
.nav .nav__cta:hover{
  color:#fff;border-color:rgba(236,178,76,.58);transform:translateY(-1px);
  background:
    radial-gradient(120% 82% at 20% -12%, rgba(255,255,255,.1), transparent 46%),
    linear-gradient(180deg, rgba(255,255,255,.06) 0%, transparent 13%),
    linear-gradient(180deg,#1a1e26 0%,#0f1117 52%,#0b0d11 100%);
}

/* nav active state — "you are here" wears the gloss-black plate */
.nav__links a{position:relative}
.nav__links a[aria-current="page"]{
  color:var(--ink);
  border:1px solid rgba(236,178,76,.30);
  border-radius:5px;
  padding:.5em .9em;
  background:
    radial-gradient(120% 82% at 20% -12%, rgba(255,255,255,.07), transparent 44%),
    linear-gradient(180deg, rgba(255,255,255,.05) 0%, transparent 13%),
    linear-gradient(180deg,#16191f 0%,#0e1015 52%,#0a0c10 100%);
  box-shadow:0 1px 0 rgba(255,255,255,.10) inset, 0 -1px 0 rgba(0,0,0,.5) inset, 0 10px 22px -16px rgba(0,0,0,.9);
}
@media(max-width:900px){
  .nav__links.show a[aria-current="page"]{display:inline-block}
}