/* ==========================================================================
   SSTech Advisory | styles.css
   Identity: carbon and porcelain, cobalt technical signal, clay for human
   judgement. Archivo for reading, IBM Plex Mono for measures and labels.
   1. Tokens   4. Type       7. Homepage chapters   10. Forms
   2. Base     5. Buttons    8. Ledgers, cards      11. Footer
   3. Layout   6. Header     9. Spine and sysmap    12. Motion, print, responsive
   ========================================================================== */

/* 1. Tokens ---------------------------------------------------------------- */
:root{
  --carbon:#0B0E14; --graphite:#12161D; --slab:#181D25; --line-d:#262B33; --line-d2:#1C2027;
  --porcelain:#F4F1EB; --mineral:#EAE5DC; --paper:#FBF9F5; --line:#DCD6CB; --line-strong:#BFB7A8;
  --ink:#14171B; --ink-2:#343A42; --slate:#5E6570; --slate-2:#868D96; --stone:#8B939D;
  --on-dark:#F4F1EB; --on-dark-2:#C3C9CE; --on-dark-3:#A8B0BA;
  --cobalt:#8F6C2F; --cobalt-deep:#76582A; --cobalt-ink:#6A4F24; --cobalt-tint:#D4B87A; --cobalt-dim:#B39256;
  --clay:#C6603C; --clay-ink:#9E4526; --clay-tint:#D07855;
  --error:#9A2E2E;
  --sans:"Archivo","Helvetica Neue",Helvetica,Arial,sans-serif;
  --mono:"IBM Plex Mono",Menlo,Consolas,monospace;
  --serif:"Instrument Serif",Georgia,serif;
  --container:1360px; --gutter:clamp(20px,4.4vw,56px);
  --sp:clamp(76px,9vw,132px);
  --header-h:84px;
  --ease:cubic-bezier(.22,1,.36,1);
}

/* 2. Base ------------------------------------------------------------------ */
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;scroll-padding-top:calc(var(--header-h) + 16px)}
body{margin:0;background:var(--porcelain);color:var(--ink);font-family:var(--sans);font-size:1.0625rem;line-height:1.6;
  -webkit-font-smoothing:antialiased;text-rendering:optimizeLegibility;overflow-x:clip}
img,svg{max-width:100%;height:auto;display:block}
button,input,select,textarea{font:inherit;color:inherit}
ul,ol{margin:0;padding:0;list-style:none}
p{margin:0 0 1em;text-wrap:pretty}
p:last-child{margin-bottom:0}
::selection{background:var(--cobalt);color:#fff}
:focus-visible{outline:2px solid var(--cobalt);outline-offset:3px}
.dark :focus-visible,.site-footer :focus-visible,.hero-x :focus-visible{outline-color:var(--cobalt-tint)}
.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap;border:0}
.skip-link{position:absolute;top:0;left:50%;transform:translate(-50%,-130%);z-index:300;background:var(--cobalt);color:#fff;
  padding:12px 20px;font-family:var(--mono);font-size:.75rem;letter-spacing:.12em;text-transform:uppercase;text-decoration:none;transition:transform .2s var(--ease)}
.skip-link:focus{transform:translate(-50%,0)}

/* 3. Layout ---------------------------------------------------------------- */
.container{width:100%;max-width:var(--container);margin-inline:auto;padding-inline:var(--gutter)}
.container--narrow{max-width:940px}
.section{padding-block:var(--sp)}
.section--tight{padding-block:clamp(52px,6vw,84px)}
.section--line{border-top:1px solid var(--line)}
.section--white{background:var(--paper)}
.section--ivory{background:var(--mineral)}
.section--dark,.section--navy,.dark{background:var(--graphite);color:var(--on-dark)}
.section--dark h2,.section--dark h3,.section--dark h4,.section--navy h2,.section--navy h3,.section--navy h4,.dark h2,.dark h3,.dark h4{color:var(--on-dark)}
.section--dark p,.section--navy p,.dark p{color:var(--on-dark-3)}
.section--dark.section--line,.section--navy.section--line{border-top-color:var(--line-d)}
.grid{display:grid;gap:clamp(24px,3vw,44px)}
.grid--2{grid-template-columns:repeat(2,minmax(0,1fr))}
.grid--3{grid-template-columns:repeat(3,minmax(0,1fr))}
.grid--4{grid-template-columns:repeat(4,minmax(0,1fr))}
.grid--split{grid-template-columns:minmax(0,.82fr) minmax(0,1.18fr);gap:clamp(32px,5vw,88px)}
.grid--split-rev{grid-template-columns:minmax(0,1.18fr) minmax(0,.82fr);gap:clamp(32px,5vw,88px)}
.grid--aside{grid-template-columns:minmax(0,250px) minmax(0,1fr);gap:clamp(32px,5vw,72px);align-items:start}
.stack{display:flex;flex-direction:column;gap:clamp(16px,2vw,26px);align-items:flex-start}
.row{display:flex;flex-wrap:wrap;gap:14px;align-items:center}
.rule{height:1px;background:var(--line)}

/* 4. Type ------------------------------------------------------------------ */
h1,h2,h3,h4{margin:0;color:var(--ink);font-weight:600;line-height:1.08;letter-spacing:-.03em;text-wrap:pretty}
h1,.display{font-size:clamp(2.5rem,5.4vw,4.6rem);line-height:1;letter-spacing:-.036em}
h2,.h2{font-size:clamp(1.9rem,3.3vw,2.85rem);line-height:1.05}
h3,.h3{font-size:clamp(1.15rem,1.5vw,1.35rem);line-height:1.28;letter-spacing:-.018em}
h4{font-size:1rem}
em.accent,.accent{font-family:var(--serif);font-style:italic;font-weight:400;letter-spacing:-.012em;color:var(--clay-ink)}
.dark .accent,.hero-x .accent,.section--dark .accent{color:var(--clay-tint)}
.eyebrow,.hero-eyebrow{display:flex;align-items:center;gap:14px;font-family:var(--mono);font-size:.71rem;font-weight:500;letter-spacing:.18em;
  text-transform:uppercase;color:var(--slate);margin:0 0 26px}
.eyebrow::before{content:"";width:22px;height:1px;background:var(--cobalt);flex:none}
.eyebrow--gold::before,.label--gold::before{background:var(--clay)}
.section--dark .eyebrow,.section--navy .eyebrow,.dark .eyebrow{color:var(--stone)}
.chapter{font-family:var(--mono);font-size:.72rem;letter-spacing:.18em;text-transform:uppercase;color:var(--slate);display:flex;gap:14px;align-items:center;margin:0 0 30px}
.chapter i{font-style:normal;color:var(--line-strong)}
.dark .chapter{color:var(--stone)} .dark .chapter i{color:var(--line-d)}
.lede{font-size:clamp(1.0625rem,1.25vw,1.2rem);line-height:1.6;color:var(--ink-2);max-width:62ch}
.section--dark .lede,.section--navy .lede,.dark .lede{color:var(--on-dark-2)}
.small{font-size:.9375rem;color:var(--ink-2)}
.xs{font-family:var(--mono);font-size:.72rem;letter-spacing:.04em;color:var(--slate);line-height:1.6}
.section--dark .xs,.section--navy .xs,.dark .xs{color:var(--stone)}
.section--dark .small,.dark .small{color:var(--on-dark-3)}
.num-serif{font-family:var(--mono);font-size:.72rem;letter-spacing:.16em;text-transform:uppercase;color:var(--cobalt-deep);display:block}
.label{display:inline-flex;align-items:center;gap:9px;font-family:var(--mono);font-size:.66rem;font-weight:500;letter-spacing:.16em;text-transform:uppercase;color:var(--cobalt-deep)}
.label::before{content:"";width:8px;height:8px;background:currentColor;flex:none}
.label--gold{color:var(--clay-ink)}
.section--dark .label,.dark .label{color:var(--cobalt-tint)}
.section--dark .label--gold,.dark .label--gold{color:var(--clay-tint)}
.tag{display:inline-block;font-family:var(--mono);font-size:.72rem;letter-spacing:.06em;color:var(--ink-2);border:1px solid var(--line-strong);padding:7px 12px}
.section--dark .tag,.dark .tag{border-color:var(--line-d);color:var(--on-dark-2)}
.section-head{max-width:76ch;margin-bottom:clamp(40px,5vw,64px)}
.section-head--wide{max-width:none;display:grid;grid-template-columns:minmax(0,.9fr) minmax(0,1.1fr);gap:clamp(28px,4vw,76px);align-items:end}
.section-head .eyebrow,.section-head--wide .eyebrow{margin-bottom:22px}
.section-head--wide .lede{margin:0}

/* 5. Buttons + links ------------------------------------------------------- */
a{color:var(--cobalt-deep);text-decoration:none;text-underline-offset:3px;transition:color .18s var(--ease)}
a:hover{color:var(--ink)}
.dark a,.section--dark a,.section--navy a,.hero-x a{color:var(--on-dark)} .dark a:hover,.section--dark a:hover,.hero-x a:hover{color:var(--cobalt-tint)}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:12px;min-height:50px;padding:14px 24px;font-family:var(--mono);font-size:.74rem;font-weight:600;
  letter-spacing:.12em;text-transform:uppercase;text-decoration:none;cursor:pointer;border:1px solid var(--cobalt);background:var(--cobalt);color:#fff;
  transition:background .2s var(--ease),border-color .2s var(--ease),color .2s var(--ease),transform .2s var(--ease)}
.btn:hover{background:var(--cobalt-deep);border-color:var(--cobalt-deep);color:#fff}
.btn:active{transform:translateY(1px)}
.btn .arw{width:15px;height:15px;flex:none;transition:transform .22s var(--ease)}
.btn:hover .arw{transform:translateX(4px)}
.btn--ghost{background:transparent;color:var(--ink);border-color:var(--line-strong)}
.btn--ghost:hover{background:transparent;border-color:var(--ink);color:var(--ink)}
.btn--onDark{background:var(--cobalt);border-color:var(--cobalt);color:#fff}
.btn--outlineDark{background:transparent;color:var(--on-dark);border-color:#2E3540}
.btn--outlineDark:hover{background:var(--graphite);border-color:var(--cobalt-tint);color:var(--on-dark)}
.btn--sm{min-height:42px;padding:10px 18px;font-size:.68rem}
.link-arrow{display:inline-flex;align-items:center;gap:10px;font-family:var(--mono);font-size:.74rem;font-weight:600;letter-spacing:.1em;text-transform:uppercase;color:var(--cobalt-deep);text-decoration:none}
.link-arrow:hover{color:var(--ink)}
.link-arrow .arw,.link-arrow svg{width:15px;height:15px;flex:none;transition:transform .22s var(--ease)}
.link-arrow:hover .arw{transform:translateX(4px)}
.section--dark .link-arrow,.dark .link-arrow{color:var(--cobalt-tint)} .section--dark .link-arrow:hover,.dark .link-arrow:hover{color:var(--on-dark)}
.chip{display:inline-block;font-family:var(--mono);font-size:.7rem;letter-spacing:.08em;border:1px solid var(--line);padding:6px 11px;color:var(--slate)}

/* 6. Header + navigation --------------------------------------------------- */
.site-header{position:sticky;top:0;z-index:100;background:rgba(244,240,234,.92);border-bottom:1px solid var(--line);
  backdrop-filter:saturate(160%) blur(14px);-webkit-backdrop-filter:saturate(160%) blur(14px);transition:background .3s var(--ease),border-color .3s var(--ease)}
.site-header--dark{background:rgba(11,14,20,.94);border-bottom-color:var(--line-d)}
.header-inner{display:flex;align-items:center;height:var(--header-h);gap:clamp(18px,3vw,44px);transition:height .3s var(--ease)}
.site-header.is-compact .header-inner{height:68px}
.logo-link{display:inline-flex;align-items:center;gap:14px;text-decoration:none;flex:none;color:inherit}
.logo-link:hover{color:inherit}
.logo-mark{width:34px;height:34px;flex:none;transition:width .3s var(--ease),height .3s var(--ease)}
.site-header.is-compact .logo-mark{width:30px;height:30px}
.logo-text{display:flex;align-items:center;gap:13px;line-height:1;white-space:nowrap}
.logo-text b{font-size:1.32rem;font-weight:700;letter-spacing:-.035em;color:var(--ink)}
.logo-text span{font-family:var(--mono);font-size:.64rem;font-weight:500;letter-spacing:.3em;text-transform:uppercase;color:var(--slate);padding-left:13px;border-left:1px solid currentColor;padding-block:3px}
.site-header--dark .logo-text b,.footer-brand .logo-text b{color:var(--on-dark)}
.site-header--dark .logo-text span,.footer-brand .logo-text span{color:var(--stone)}
.nav{display:flex;align-items:center;margin-left:auto}
.nav-list{display:flex;align-items:center;gap:clamp(6px,1.6vw,30px)}
.nav-link,.nav-toggle-sub{position:relative;display:inline-flex;align-items:center;gap:7px;padding:10px 2px;font-family:var(--mono);font-size:.74rem;font-weight:500;
  letter-spacing:.11em;text-transform:uppercase;color:var(--ink-2);text-decoration:none;white-space:nowrap;background:none;border:0;cursor:pointer;transition:color .2s var(--ease)}
.site-header--dark .nav-link,.site-header--dark .nav-toggle-sub{color:var(--on-dark-3)}
.nav-link::after,.nav-toggle-sub::after{content:"";position:absolute;left:0;right:0;bottom:4px;height:1px;background:currentColor;transform:scaleX(0);transform-origin:left;transition:transform .26s var(--ease)}
.nav-link:hover,.nav-toggle-sub:hover{color:var(--ink)} .site-header--dark .nav-link:hover,.site-header--dark .nav-toggle-sub:hover{color:var(--on-dark)}
.nav-link:hover::after,.nav-toggle-sub:hover::after{transform:scaleX(1)}
.nav-link[aria-current="page"],.nav-toggle-sub[data-current="true"]{color:var(--ink)}
.site-header--dark .nav-link[aria-current="page"]{color:var(--on-dark)}
.nav-link[aria-current="page"]::after,.nav-toggle-sub[data-current="true"]::after{transform:scaleX(1);background:var(--cobalt)}
.nav-toggle-sub svg{width:9px;height:9px;opacity:.65;transition:transform .22s var(--ease)}
.nav-item{position:relative}
.nav-item.is-open .nav-toggle-sub svg{transform:rotate(180deg)}
.nav-item.is-open .nav-toggle-sub{color:var(--ink)} .site-header--dark .nav-item.is-open .nav-toggle-sub{color:var(--on-dark)}
.subnav{position:absolute;top:calc(100% + 12px);left:-18px;min-width:318px;background:var(--carbon);border:1px solid var(--line-d);padding:8px;
  opacity:0;visibility:hidden;transform:translateY(-6px);transition:opacity .2s var(--ease),transform .2s var(--ease),visibility .2s;box-shadow:0 30px 60px -30px rgba(0,0,0,.6)}
.nav-item.is-open .subnav{opacity:1;visibility:visible;transform:translateY(0)}
.subnav a{display:block;padding:13px 14px;font-size:.95rem;font-weight:600;letter-spacing:-.01em;color:var(--on-dark);text-decoration:none;transition:background .18s var(--ease)}
.subnav a:hover{background:var(--graphite);color:var(--on-dark)}
.subnav a small{display:block;font-size:.8125rem;color:var(--stone);font-weight:400;margin-top:3px;line-height:1.45}
.subnav a[aria-current="page"]{box-shadow:inset 2px 0 0 var(--cobalt)}
.header-cta{flex:none}
.burger{display:none;width:46px;height:46px;margin-left:auto;background:transparent;border:1px solid var(--line-strong);cursor:pointer;align-items:center;justify-content:center;flex:none}
.site-header--dark .burger{border-color:#2E3540}
.burger span{display:block;width:20px;height:1.5px;background:currentColor;position:relative;transition:background .2s}
.burger span::before,.burger span::after{content:"";position:absolute;left:0;width:20px;height:1.5px;background:currentColor;transition:transform .24s var(--ease)}
.burger span::before{top:-6px}.burger span::after{top:6px}
.burger[aria-expanded="true"] span{background:transparent}
.burger[aria-expanded="true"] span::before{transform:translateY(6px) rotate(45deg)}
.burger[aria-expanded="true"] span::after{transform:translateY(-6px) rotate(-45deg)}
.mobile-nav{display:none;position:fixed;inset:var(--header-h) 0 0;background:var(--carbon);color:var(--on-dark);z-index:99;overflow-y:auto;padding:22px var(--gutter) 56px;border-top:1px solid var(--line-d)}
.mobile-nav.is-open{display:block}
.mobile-nav h4{font-family:var(--mono);font-size:.66rem;letter-spacing:.2em;text-transform:uppercase;color:var(--stone);margin:30px 0 6px;font-weight:500}
.mobile-nav h4:first-child{margin-top:0}
.mobile-nav a{display:flex;justify-content:space-between;align-items:center;gap:16px;padding:17px 0;font-size:1.125rem;font-weight:600;letter-spacing:-.015em;color:var(--on-dark);text-decoration:none;border-bottom:1px solid var(--line-d2)}
.mobile-nav a[aria-current="page"]{color:var(--cobalt-tint)}
.mobile-nav a svg{width:13px;height:13px;color:var(--stone);flex:none}
.mobile-nav .btn{margin-top:30px;width:100%;border-bottom:0}
body.nav-open{overflow:hidden}

/* 7. Homepage chapters ------------------------------------------------------ */
/* Hero: full viewport, carbon, instrument surface */
.hero-x{position:relative;background:var(--carbon);color:var(--on-dark);overflow:hidden;border-bottom:1px solid var(--line-d)}
.hero-x::before{content:"";position:absolute;inset:0;pointer-events:none;background-image:linear-gradient(90deg,rgba(255,255,255,.035) 1px,transparent 1px);
  background-size:calc(100%/12) 100%;-webkit-mask-image:linear-gradient(180deg,#000 30%,transparent);mask-image:linear-gradient(180deg,#000 30%,transparent)}
.hero-x::after{content:"";position:absolute;left:-10%;bottom:-40%;width:70vw;height:70vw;max-width:900px;max-height:900px;pointer-events:none;background:radial-gradient(circle,rgba(212,184,122,.13),transparent 60%)}
.hero-x .container{position:relative;z-index:1}
.hero-grid{display:grid;grid-template-columns:minmax(0,1.02fr) minmax(0,.98fr);gap:clamp(36px,4.6vw,72px);align-items:center;min-height:calc(100vh - var(--header-h));min-height:calc(100svh - var(--header-h));padding:clamp(48px,6vw,72px) 0 clamp(56px,6vw,84px)}
.hero-copy{display:flex;flex-direction:column;gap:clamp(22px,2.4vw,30px)}
.hero-eyebrow{color:var(--cobalt-tint);font-size:.8rem;margin:0;gap:14px}
.hero-eyebrow i{font-style:normal;color:#3A4148}
.hero-x h1{color:var(--on-dark);font-size:clamp(2.55rem,5.1vw,4.4rem);max-width:12ch}
.hero-x h1 span{display:block}
.hero-x .lede{color:var(--on-dark-3);max-width:34em}
.hero-actions{display:flex;flex-wrap:wrap;gap:12px;padding-top:4px}
.hero-meta{display:flex;flex-wrap:wrap;gap:10px 26px;font-family:var(--mono);font-size:.7rem;letter-spacing:.1em;text-transform:uppercase;color:var(--stone);padding-top:clamp(14px,2vw,26px);border-top:1px solid var(--line-d);margin-top:8px}
.hero-meta i{width:6px;height:6px;background:var(--clay);display:inline-block;font-style:normal;align-self:center}
/* staged entrance */
.rise{opacity:0;transform:translateY(16px);animation:rise .7s var(--ease) both}
.rise[data-d="1"]{animation-delay:.1s}.rise[data-d="2"]{animation-delay:.22s}.rise[data-d="3"]{animation-delay:.34s}.rise[data-d="4"]{animation-delay:.46s}
.rise[data-d="5"]{animation-delay:.58s}.rise[data-d="6"]{animation-delay:.7s}.rise[data-d="7"]{animation-delay:.84s}
@keyframes rise{to{opacity:1;transform:none}}
/* Instrument surface */
.surface{border:1px solid var(--line-d);background:#0F131A;color:var(--on-dark);box-shadow:0 60px 120px -70px rgba(0,0,0,.9)}
.surface-head,.surface-foot{display:flex;align-items:center;justify-content:space-between;gap:16px;padding:16px 22px;background:var(--carbon);font-family:var(--mono);font-size:.72rem;letter-spacing:.14em;text-transform:uppercase;color:var(--on-dark-2)}
.surface-head{border-bottom:1px solid var(--line-d)} .surface-foot{border-top:1px solid var(--line-d);text-transform:none;letter-spacing:.04em;color:var(--stone)}
.surface-status{display:flex;align-items:center;gap:10px;color:var(--stone);transition:color .3s}
.surface-status::before{content:"";width:7px;height:7px;background:currentColor}
.surface.is-go .surface-status{color:var(--cobalt-tint)} .surface.is-settled .surface-status{color:var(--stone)}
.srow{display:grid;grid-template-columns:38px minmax(0,150px) minmax(0,1fr) 88px;align-items:center;gap:0 12px;padding:17px 22px;border-bottom:1px solid var(--line-d2)}
.srow:last-child{border-bottom:0}
.srow--h{background:#141922}
.srow .s-n,.srow .s-t,.srow .s-r{font-family:var(--mono);font-size:.74rem;letter-spacing:.1em;text-transform:uppercase;color:var(--stone)}
.srow .s-t{color:#ECE7DF;font-weight:500}.srow .s-r{text-align:right;font-size:.68rem}
.srow--h .s-n,.srow--h .s-t,.srow--h .s-r{color:var(--clay-tint)}
.s-g{display:flex;align-items:center;gap:8px;min-height:22px;padding-right:12px}
.s-g i{display:block;font-style:normal;background:#4A525C}
.s-g .ln{height:4px;width:60%} .s-g .ln.b{width:36%} .s-g .ln.c{width:80%}
.s-g.col{flex-direction:column;align-items:flex-start;gap:5px}
.s-g .nd{width:11px;height:11px;border:2px solid var(--cobalt-tint);background:transparent;flex:none}
.s-g .wire{flex:1;height:2px;background:var(--cobalt-dim)}
.s-g .bar{width:12px;background:var(--cobalt-dim);align-self:flex-end}
.s-g.bars{align-items:flex-end;height:28px;gap:6px}
.s-g .bar.h{background:var(--cobalt)}
.s-g .cl{width:9px;height:9px;background:var(--clay);flex:none}
.s-g .dash{flex:1;height:2px;background:repeating-linear-gradient(90deg,var(--clay) 0 6px,transparent 6px 12px)}
.s-g .post{width:2px;height:22px;background:var(--clay);flex:none}
.s-g .solid{flex:1;height:2px;background:var(--clay)}
.s-g .exec{flex:1;height:12px;background:var(--cobalt)}
.s-g .thin{height:2px;width:100%} .s-g .thin.c{width:70%}
/* sequence animation: elements start hidden, run when .is-go */
.surface [data-a]{opacity:0}
.surface.is-go [data-a]{animation:sig .42s var(--ease) both;animation-delay:calc(var(--d) * 1s)}
.surface.is-go [data-a="x"]{animation-name:barx;transform-origin:left center}
.surface.is-go [data-a="y"]{animation-name:bary;transform-origin:bottom center}
@keyframes sig{from{opacity:.1;transform:translateY(4px)}to{opacity:1;transform:none}}
@keyframes barx{from{opacity:1;transform:scaleX(.02)}to{opacity:1;transform:none}}
@keyframes bary{from{opacity:1;transform:scaleY(.06)}to{opacity:1;transform:none}}
.surface-foot button{background:transparent;border:1px solid #2E3540;color:var(--on-dark-2);font-family:var(--mono);font-size:.68rem;letter-spacing:.12em;text-transform:uppercase;padding:9px 13px;min-height:38px;cursor:pointer;transition:border-color .2s,color .2s}
.surface-foot button:hover{border-color:var(--cobalt-tint);color:var(--on-dark)}

/* Chapter 01: position chain */
.chain{display:grid;grid-template-columns:repeat(7,minmax(0,1fr));border-top:1px solid var(--line)}
.chain li{position:relative;padding:26px 16px 24px 0;display:flex;flex-direction:column;gap:11px}
.chain li::before{content:"";position:absolute;top:-1px;left:0;right:0;height:2px;background:var(--line-strong);transform:scaleX(0);transform-origin:left;transition:transform .5s var(--ease)}
.chain li[data-k="cobalt"]::before{background:var(--cobalt)} .chain li[data-k="clay"]::before{background:var(--clay)}
.chain .c-i{font-family:var(--mono);font-size:.7rem;letter-spacing:.14em;color:var(--slate-2)}
.chain .c-t{font-size:1.1rem;font-weight:600;letter-spacing:-.02em;color:var(--ink)}
.chain .c-r{font-family:var(--mono);font-size:.68rem;letter-spacing:.1em;text-transform:uppercase;color:var(--slate)}
.chain li[data-k="cobalt"] .c-i,.chain li[data-k="cobalt"] .c-r{color:var(--cobalt-deep)}
.chain li[data-k="clay"] .c-i,.chain li[data-k="clay"] .c-r{color:var(--clay-ink)}
.chain li>*{opacity:0;transform:translateY(6px);transition:opacity .5s var(--ease),transform .5s var(--ease)}
.chain.is-in li::before{transform:scaleX(1)} .chain.is-in li>*{opacity:1;transform:none}
.chain.is-in li:nth-child(n){transition-delay:0s}
.chain.is-in li:nth-child(1)::before,.chain.is-in li:nth-child(1)>*{transition-delay:.05s}
.chain.is-in li:nth-child(2)::before,.chain.is-in li:nth-child(2)>*{transition-delay:.3s}
.chain.is-in li:nth-child(3)::before,.chain.is-in li:nth-child(3)>*{transition-delay:.55s}
.chain.is-in li:nth-child(4)::before,.chain.is-in li:nth-child(4)>*{transition-delay:.8s}
.chain.is-in li:nth-child(5)::before,.chain.is-in li:nth-child(5)>*{transition-delay:1.05s}
.chain.is-in li:nth-child(6)::before,.chain.is-in li:nth-child(6)>*{transition-delay:1.3s}
.chain.is-in li:nth-child(7)::before,.chain.is-in li:nth-child(7)>*{transition-delay:1.55s}

/* Chapter 02: sticky delivery sequence */
.seq-wrap{position:relative;height:300vh}
.seq-inner{position:sticky;top:var(--header-h);min-height:calc(100vh - var(--header-h));display:flex;align-items:center;padding:40px 0}
.seq-grid{display:grid;grid-template-columns:minmax(0,.8fr) minmax(0,1.2fr);gap:clamp(36px,5vw,76px);align-items:center;width:100%}
.seq-copy{display:flex;flex-direction:column;gap:22px}
.seq-copy .chapter{margin:0}
.seq-progress{display:flex;align-items:center;gap:16px;padding-top:8px}
.seq-progress .track{flex:1;height:2px;background:var(--line);position:relative}
.seq-progress .track i{position:absolute;inset:0 auto 0 0;width:20%;background:var(--cobalt);transition:width .45s var(--ease)}
.seq-progress span{font-family:var(--mono);font-size:.72rem;letter-spacing:.12em;color:var(--slate)}
.stages{border-bottom:1px solid var(--line)}
.stage{display:grid;grid-template-columns:8px 48px minmax(0,1fr);border-top:1px solid var(--line);transition:background .4s var(--ease)}
.stage .rail{background:transparent;transform:scaleY(0);transform-origin:top;transition:transform .45s var(--ease),background .4s}
.stage .st-i{font-family:var(--mono);font-size:.72rem;color:var(--slate-2);padding:17px 0 0;transition:color .4s,padding .45s var(--ease)}
.stage .st-b{display:flex;flex-direction:column;padding:15px 0 16px;min-width:0}
.stage .st-h{display:flex;align-items:baseline;justify-content:space-between;gap:16px}
.stage .st-h b{font-size:clamp(1.15rem,1.5vw,1.4rem);font-weight:600;letter-spacing:-.02em;color:var(--slate-2);transition:color .4s}
.stage .st-h span{font-family:var(--mono);font-size:.68rem;letter-spacing:.12em;text-transform:uppercase;color:var(--slate-2);transition:color .4s}
.stage .st-x{overflow:hidden;max-height:0;opacity:0;transition:max-height .46s var(--ease),opacity .4s var(--ease)}
.stage .st-x>div{display:flex;flex-direction:column;gap:10px;padding-top:9px}
.stage .st-x p{font-size:.95rem;line-height:1.56;color:var(--ink-2);max-width:56ch}
.stage .st-p{display:flex;align-items:center;gap:10px;font-family:var(--mono);font-size:.68rem;letter-spacing:.11em;text-transform:uppercase;color:var(--slate)}
.stage .st-p i{width:14px;height:1px;background:var(--line-strong)} .stage .st-p b{font-weight:500;color:var(--ink)}
.stage.is-past .rail{background:var(--cobalt-dim);transform:none} .stage.is-past .st-i,.stage.is-past .st-h b{color:var(--slate)}
.stage.is-active{background:var(--paper)} .stage.is-active .rail{background:var(--cobalt);transform:none}
.stage.is-active .st-i{color:var(--cobalt-deep);padding-left:10px} .stage.is-active .st-h b{color:var(--ink)} .stage.is-active .st-h span{color:var(--clay-ink)}
.stage.is-active .st-x{max-height:200px;opacity:1}

/* Chapter 03: operating model (dark) */
.modes{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));border-bottom:1px solid var(--line-d)}
.mode-tab{text-align:left;background:transparent;border:0;border-left:1px solid var(--line-d);border-bottom:2px solid transparent;margin-bottom:-1px;padding:24px 26px 22px;cursor:pointer;display:flex;flex-direction:column;gap:8px;transition:border-color .26s var(--ease);min-height:44px}
.mode-tab:first-child{border-left:0;padding-left:0}
.mode-tab .m-i{font-family:var(--mono);font-size:.7rem;letter-spacing:.15em;color:#6E7783;transition:color .24s}
.mode-tab .m-t{font-size:clamp(1.4rem,2vw,1.9rem);font-weight:600;letter-spacing:-.025em;color:#6E7783;transition:color .24s}
.mode-tab .m-s{font-size:.9rem;color:#6E7783;transition:color .24s}
.mode-tab:hover .m-t{color:var(--on-dark-3)}
.mode-tab[aria-selected="true"]{border-bottom-color:var(--cobalt)}
.mode-tab[aria-selected="true"] .m-i{color:var(--cobalt-tint)} .mode-tab[aria-selected="true"] .m-t{color:var(--on-dark)} .mode-tab[aria-selected="true"] .m-s{color:var(--on-dark-3)}
.mode-body{display:grid;grid-template-columns:minmax(0,.82fr) minmax(0,1.18fr);gap:clamp(36px,5vw,76px);padding-top:48px;align-items:start}
.mode-pane{display:none;flex-direction:column;gap:22px} .mode-pane.is-on{display:flex}
.mode-pane .m-lead{font-size:clamp(1.3rem,1.7vw,1.65rem);line-height:1.24;font-weight:600;letter-spacing:-.022em;color:var(--on-dark)}
.mode-pane p{font-size:1rem;color:var(--on-dark-2)}
.marks{border-top:1px solid var(--line-d)}
.marks li{display:flex;align-items:baseline;gap:14px;padding:13px 0;border-bottom:1px solid var(--line-d2);font-size:.97rem;color:#ECE7DF}
.marks li span{font-family:var(--mono);font-size:.7rem;color:var(--stone)}
.sys{border:1px solid var(--line-d);background:#0F131A}
.sys-head{display:flex;align-items:center;justify-content:space-between;gap:16px;padding:15px 20px;border-bottom:1px solid var(--line-d);background:var(--carbon);font-family:var(--mono);font-size:.72rem;letter-spacing:.14em;text-transform:uppercase;color:var(--on-dark-2)}
.sys-head span{color:var(--cobalt-tint)}
.sys-grid{display:grid;grid-template-columns:minmax(0,1fr) 104px}
.sys-in{border-right:1px solid var(--line-d2);padding:20px 18px}
.sys-in>span{display:block;font-family:var(--mono);font-size:.68rem;letter-spacing:.13em;text-transform:uppercase;color:var(--stone);padding-bottom:12px}
.sys-node{overflow:hidden;max-height:0;opacity:0;transition:max-height .5s var(--ease),opacity .4s var(--ease)}
.sys-node.is-on{max-height:52px;opacity:1}
.sys-node>div{display:flex;align-items:center;gap:12px;padding:10px 12px;margin-bottom:7px;border:1px solid var(--line-d);background:var(--graphite)}
.sys-node i{width:7px;height:7px;flex:none;background:var(--cobalt);font-style:normal}
.sys-node[data-role="judgement"] i{background:var(--clay)} .sys-node[data-role="judgement"]>div{border-color:#3A2C25}
.sys-node span{font-size:.92rem;color:#ECE7DF}
.sys-node small{margin-left:auto;font-family:var(--mono);font-size:.64rem;letter-spacing:.1em;text-transform:uppercase;color:var(--stone)}
.sys-node[data-role="judgement"] small{color:var(--clay-tint)}
.sys-spine{position:relative;display:flex;align-items:center;justify-content:center;padding:20px 0}
.sys-spine::before{content:"";position:absolute;top:20px;bottom:20px;left:50%;width:1px;background:var(--line-d)}
.sys-spine b{position:relative;writing-mode:vertical-rl;font-family:var(--mono);font-weight:500;font-size:.72rem;letter-spacing:.17em;text-transform:uppercase;color:var(--cobalt-tint);background:#0F131A;border:1px solid var(--cobalt-tint);padding:16px 9px;transition:color .3s,border-color .3s}
.sys[data-mode="advise"] .sys-spine b{color:var(--clay-tint);border-color:var(--clay-tint)}
.sys-out{border-top:1px solid var(--line-d);padding:22px 20px;display:flex;flex-direction:column;gap:10px;background:var(--carbon);box-shadow:inset 3px 0 0 var(--cobalt)}
.sys-out small{font-family:var(--mono);font-size:.68rem;letter-spacing:.13em;text-transform:uppercase;color:var(--cobalt-tint)}
.sys-out b{font-size:clamp(1.15rem,1.5vw,1.45rem);font-weight:600;line-height:1.22;letter-spacing:-.022em;color:var(--on-dark)}
.sys-out p{font-size:.95rem;color:var(--on-dark-3)}
.sys-flow{border-top:1px solid var(--line-d);padding:13px 20px;font-family:var(--mono);font-size:.68rem;letter-spacing:.06em;color:var(--stone)}
.sys [data-for]{display:none} .sys[data-mode="advise"] [data-for="advise"],.sys[data-mode="build"] [data-for="build"],.sys[data-mode="enable"] [data-for="enable"]{display:block}
.sys-out [data-for]{display:none}

/* Chapter 04: capability families */
.fams{border-top:1px solid var(--line)}
.fam{display:grid;grid-template-columns:48px minmax(0,1fr) minmax(0,300px);gap:32px;align-items:start;padding:32px 0;border-bottom:1px solid var(--line);transition:background .3s}
.fam .f-i{font-family:var(--mono);font-size:.72rem;color:var(--slate-2);padding-top:6px}
.fam .f-b{display:flex;flex-direction:column;gap:10px;max-width:640px}
.fam .f-b b{font-size:clamp(1.2rem,1.6vw,1.5rem);font-weight:600;letter-spacing:-.022em;color:var(--ink);line-height:1.24}
.fam .f-b span{font-size:.97rem;line-height:1.6;color:var(--ink-2)}
.fam .f-m{display:flex;flex-direction:column;gap:12px;padding-top:6px}
.mv{display:flex;align-items:center}
.mv i{display:block;font-style:normal;flex:1;height:2px;background:var(--cobalt-dim);transform:scaleX(0);transform-origin:left;transition:transform .3s var(--ease)}
.mv i.clay{background:var(--clay)}
.mv b{display:block;width:9px;height:9px;flex:none;background:var(--line-strong);opacity:0;transform:scale(.5);transition:opacity .3s var(--ease),transform .3s var(--ease)}
.mv b.cobalt{background:var(--cobalt)} .mv b.ink{background:var(--ink);width:13px;height:13px} .mv b.clay{background:var(--clay)}
.fam.is-in .mv i{transform:none} .fam.is-in .mv b{opacity:1;transform:none}
.fam.is-in .mv>*:nth-child(1){transition-delay:0s}.fam.is-in .mv>*:nth-child(2){transition-delay:.1s}.fam.is-in .mv>*:nth-child(3){transition-delay:.2s}.fam.is-in .mv>*:nth-child(4){transition-delay:.3s}
.fam.is-in .mv>*:nth-child(5){transition-delay:.4s}.fam.is-in .mv>*:nth-child(6){transition-delay:.5s}.fam.is-in .mv>*:nth-child(7){transition-delay:.6s}.fam.is-in .mv>*:nth-child(8){transition-delay:.7s}.fam.is-in .mv>*:nth-child(9){transition-delay:.8s}
.fam .f-p{font-family:var(--mono);font-size:.68rem;line-height:1.7;letter-spacing:.08em;text-transform:uppercase;color:var(--slate)}

/* Chapter 05: architecture (dark) */
.arch{display:flex;flex-direction:column;gap:10px}
.layer{display:grid;grid-template-columns:48px minmax(0,220px) minmax(0,1fr) 150px;align-items:center;gap:20px;padding:22px 24px;border:1px solid var(--line-d);background:#0F131A;box-shadow:inset 3px 0 0 transparent;
  opacity:0;transform:translateY(18px);transition:opacity .56s var(--ease),transform .56s var(--ease),box-shadow .26s,border-color .26s;cursor:default}
.arch.is-in .layer{opacity:1;transform:none}
.arch.is-in .layer:nth-child(1){transition-delay:.45s}.arch.is-in .layer:nth-child(2){transition-delay:.36s}.arch.is-in .layer:nth-child(3){transition-delay:.27s}
.arch.is-in .layer:nth-child(4){transition-delay:.18s}.arch.is-in .layer:nth-child(5){transition-delay:.09s}.arch.is-in .layer:nth-child(6){transition-delay:0s}
.arch.is-in.has-focus .layer{transition-delay:0s;opacity:.32}
.arch.is-in.has-focus .layer.is-focus{opacity:1;border-color:#2E3540;box-shadow:inset 3px 0 0 var(--cobalt);transform:translateX(6px)}
.arch.is-in.has-focus .layer.is-focus[data-k="clay"]{box-shadow:inset 3px 0 0 var(--clay)}
.layer .l-i{font-family:var(--mono);font-size:.72rem;color:var(--stone)} .layer[data-k="clay"] .l-i{color:var(--clay-tint)}
.layer .l-n{font-size:clamp(1.05rem,1.3vw,1.2rem);font-weight:600;letter-spacing:-.018em;color:var(--on-dark)}
.layer .l-b{font-size:.92rem;line-height:1.55;color:var(--on-dark-3);padding-right:20px}
.layer .l-d{display:flex;align-items:center;justify-content:flex-end;gap:9px;white-space:nowrap;font-family:var(--mono);font-size:.64rem;letter-spacing:.09em;text-transform:uppercase;color:var(--stone)}
.layer .l-d i{width:22px;height:6px;background:#3A4148;transition:width .3s var(--ease),background .26s}
.layer.is-focus .l-d i{width:46px;background:var(--cobalt)} .layer.is-focus[data-k="clay"] .l-d i{background:var(--clay)}
.tool-btn{white-space:nowrap;background:transparent;border:1px solid #2E3540;color:var(--on-dark-2);font-family:var(--mono);font-size:.68rem;letter-spacing:.12em;text-transform:uppercase;padding:12px 16px;min-height:44px;cursor:pointer;transition:border-color .2s,color .2s}
.tool-btn:hover{border-color:var(--cobalt-tint);color:var(--on-dark)}

/* Chapter 06: governance gate */
.gate{display:grid;grid-template-columns:minmax(0,1.15fr) minmax(0,1fr);border:1px solid var(--line);background:var(--paper)}
.gate-side{border-right:1px solid var(--line)}
.gate-head{padding:15px 22px;border-bottom:1px solid var(--line);font-family:var(--mono);font-size:.72rem;letter-spacing:.14em;text-transform:uppercase;color:var(--ink-2);display:flex;justify-content:space-between;gap:16px}
.gate-head span{color:var(--cobalt-deep);transition:color .3s} .gate.is-held .gate-head span{color:var(--clay-ink)}
.cond{width:100%;text-align:left;background:transparent;border:0;border-bottom:1px solid var(--line);padding:24px 22px;cursor:pointer;display:grid;grid-template-columns:minmax(0,1fr) auto;gap:18px;align-items:start;min-height:44px;transition:background .2s}
.cond:hover{background:var(--porcelain)}
.cond>span:first-child{display:flex;flex-direction:column;min-width:0}
.cond:last-child{border-bottom:0}
.cond .c-h{display:flex;align-items:center;gap:12px;margin-bottom:9px}
.cond .c-h i{width:10px;height:10px;background:var(--cobalt);transition:background .28s}
.cond .c-h b{font-size:clamp(1.1rem,1.4vw,1.3rem);font-weight:600;letter-spacing:-.02em;color:var(--ink)}
.cond p{font-size:.93rem;line-height:1.56;color:var(--ink-2);max-width:42ch}
.cond .c-s{font-family:var(--mono);font-size:.66rem;letter-spacing:.11em;text-transform:uppercase;color:var(--cobalt-deep);border:1px solid var(--cobalt-deep);padding:8px 11px;white-space:nowrap;transition:color .28s,border-color .28s}
.cond[aria-checked="false"] .c-h i{background:var(--clay)} .cond[aria-checked="false"] .c-s{color:var(--clay-ink);border-color:var(--clay-ink)}
.gate-route{display:flex;flex-direction:column;background:var(--porcelain)}
.route-body{flex:1;padding:28px 22px;display:flex;flex-direction:column;gap:24px;min-height:330px}
.route-line{display:grid;grid-template-columns:minmax(0,1fr) 18px minmax(0,1fr);align-items:center}
.route-line>span{border:1px solid var(--line-strong);background:var(--paper);padding:12px 14px;font-family:var(--mono);font-size:.66rem;letter-spacing:.1em;text-transform:uppercase;color:var(--ink-2)}
.route-line>i{height:2px;background:var(--cobalt);transition:background .3s}
.route-line>span:last-child{border-color:var(--cobalt-deep);color:var(--cobalt-deep);transition:border-color .3s,color .3s}
.gate.is-held .route-line>i{background:var(--clay)} .gate.is-held .route-line>span:last-child{border-color:var(--clay-ink);color:var(--clay-ink)}
.route-steps li{display:flex;align-items:center;gap:12px;padding:10px 0;font-family:var(--mono);font-size:.7rem;letter-spacing:.1em;text-transform:uppercase;color:var(--ink-2)}
.route-steps li::before{content:"";width:2px;height:18px;background:var(--cobalt)} .route-steps li::after{content:"";flex:1;height:1px;background:var(--line)}
.route-steps li.clay{color:var(--clay-ink)} .route-steps li.clay::before{background:var(--clay)}
.route-steps li.mute{color:var(--slate)} .route-steps li.mute::before{background:var(--line-strong)}
.gate [data-when]{display:none}
.gate:not(.is-held) .gate-head [data-when="clear"],.gate.is-held .gate-head [data-when="held"],.gate:not(.is-held) .route-line [data-when="clear"],.gate.is-held .route-line [data-when="held"]{display:inline}
.route-steps [data-when]{display:none} .gate:not(.is-held) .route-steps [data-when="clear"],.gate.is-held .route-steps [data-when="held"]{display:flex}
.verdict{margin-top:auto;display:flex;flex-direction:column;gap:12px}
.verdict .v-bar{height:2px;background:var(--cobalt);width:100%;transition:width .36s var(--ease),background .3s}
.gate.is-held .verdict .v-bar{background:var(--clay)}
.verdict b{font-size:clamp(1.25rem,1.7vw,1.6rem);line-height:1.16;font-weight:600;letter-spacing:-.026em;color:var(--cobalt-deep);transition:color .3s}
.gate.is-held .verdict b{color:var(--clay-ink)}
.verdict p{font-size:.95rem;color:var(--ink-2)}
.verdict .v-rec{display:flex;justify-content:space-between;gap:16px;padding-top:16px;border-top:1px solid var(--line);font-family:var(--mono);font-size:.66rem;letter-spacing:.09em;text-transform:uppercase;color:var(--slate)}
.verdict .v-rec span:last-child{color:var(--ink-2)}
.verdict [data-when]{display:none} .gate:not(.is-held) .verdict [data-when="clear"],.gate.is-held .verdict [data-when="held"]{display:block}

/* Chapter 07: engagement pathways */
.paths{display:grid;grid-template-columns:290px minmax(0,1fr);border:1px solid var(--line);background:var(--paper)}
.paths-side{border-right:1px solid var(--line);display:flex;flex-direction:column}
.path-btn{flex:1;width:100%;text-align:left;background:transparent;border:0;border-bottom:1px solid var(--line);box-shadow:inset 2px 0 0 transparent;padding:24px 22px;cursor:pointer;display:flex;flex-direction:column;gap:8px;transition:background .26s,box-shadow .26s}
.path-btn:last-child{border-bottom:0}
.path-btn .p-c{font-family:var(--mono);font-size:.68rem;letter-spacing:.13em;color:var(--slate-2);transition:color .26s}
.path-btn .p-t{font-size:clamp(1.05rem,1.3vw,1.2rem);font-weight:600;letter-spacing:-.018em;color:var(--ink-2);transition:color .26s}
.path-btn .p-w{font-size:.9rem;line-height:1.5;color:var(--slate)}
.path-btn:hover{background:var(--porcelain)}
.path-btn[aria-pressed="true"]{background:var(--porcelain);box-shadow:inset 2px 0 0 var(--cobalt)}
.path-btn[aria-pressed="true"] .p-c{color:var(--cobalt-deep)} .path-btn[aria-pressed="true"] .p-t{color:var(--ink)}
.path-pane{display:none;padding:32px 32px 34px;flex-direction:column;gap:26px} .path-pane.is-on{display:flex}
.path-pane .pp-h{display:flex;align-items:baseline;justify-content:space-between;gap:24px;flex-wrap:wrap}
.path-pane .pp-h b{font-size:clamp(1.3rem,1.7vw,1.6rem);font-weight:600;letter-spacing:-.022em;color:var(--ink)}
.path-pane .pp-h span{font-family:var(--mono);font-size:.68rem;letter-spacing:.13em;text-transform:uppercase;color:var(--clay-ink)}
.phases{display:flex;gap:3px;height:48px}
.phases div{background:var(--cobalt);display:flex;align-items:flex-end;padding:9px;transform-origin:left;animation:phase .6s var(--ease) both}
.phases div:nth-child(even){background:var(--cobalt-dim)} .phases div:last-child{background:var(--clay)}
.phases div:nth-child(2){animation-delay:.06s}.phases div:nth-child(3){animation-delay:.12s}.phases div:nth-child(4){animation-delay:.18s}.phases div:nth-child(5){animation-delay:.24s}
.phases span{font-family:var(--mono);font-size:.64rem;letter-spacing:.1em;text-transform:uppercase;color:#fff}
@keyframes phase{from{transform:scaleX(.4);opacity:0}to{transform:none;opacity:1}}
.phase-cols{display:grid;gap:0 24px;border-top:1px solid var(--line)}
.phase-cols div{padding:20px 0 4px;display:flex;flex-direction:column;gap:8px}
.phase-cols b{font-size:1.05rem;font-weight:600;letter-spacing:-.018em;color:var(--ink)}
.phase-cols span{font-size:.9rem;line-height:1.55;color:var(--ink-2)}
.path-foot{margin-top:auto;padding-top:24px;border-top:1px solid var(--line);display:flex;align-items:center;justify-content:space-between;gap:24px;flex-wrap:wrap}
.path-foot p{font-size:.97rem;color:var(--ink-2);max-width:52ch}

/* Chapter 08: sectors + capability strip */
.sectors{display:flex;flex-direction:column;border-bottom:1px solid var(--line)}
.sector{display:grid;grid-template-columns:48px minmax(0,1fr) minmax(0,260px);gap:24px;align-items:baseline;padding:24px 0;border-top:1px solid var(--line)}
.sector span:first-child{font-family:var(--mono);font-size:.72rem;color:var(--slate-2)}
.sector b{font-size:clamp(1.15rem,1.5vw,1.4rem);font-weight:600;letter-spacing:-.022em;color:var(--ink)}
.sector small{font-size:.92rem;line-height:1.55;color:var(--ink-2)}
.sticky-side{position:sticky;top:calc(var(--header-h) + 40px);align-self:start}
.strip{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));border-top:1px solid var(--line-d);border-left:1px solid var(--line-d)}
.strip article{padding:26px 24px 28px;border-right:1px solid var(--line-d);border-bottom:1px solid var(--line-d);display:flex;flex-direction:column;gap:12px;transition:background .25s}
.strip article:hover{background:#0F131A}
.strip .s-k{font-family:var(--mono);font-size:.66rem;letter-spacing:.14em;text-transform:uppercase;color:var(--cobalt-tint)}
.strip h3{font-size:1.15rem;color:var(--on-dark)} .strip p{font-size:.92rem;color:var(--on-dark-3)}

/* Close */
.close-x{background:var(--carbon);color:var(--on-dark);border-top:1px solid var(--line-d);position:relative;overflow:hidden}
.close-x::after{content:"";position:absolute;right:-10%;top:-30%;width:60vw;height:60vw;max-width:800px;max-height:800px;pointer-events:none;background:radial-gradient(circle,rgba(212,184,122,.12),transparent 60%)}
.close-x .container{position:relative;z-index:1}
.close-lead{display:flex;align-items:center;gap:16px;padding:26px 0 44px;border-top:1px solid var(--line-d)}
.close-lead i{width:9px;height:9px;background:var(--clay);flex:none}
.close-lead span{font-family:var(--serif);font-style:italic;font-size:clamp(1.3rem,2vw,1.7rem);line-height:1.35;color:var(--clay-tint)}
.close-grid{display:grid;grid-template-columns:minmax(0,1.18fr) minmax(0,.82fr);gap:clamp(36px,5vw,76px);align-items:start}
.close-x h2{color:var(--on-dark);font-size:clamp(2.2rem,4.2vw,3.75rem);line-height:1;letter-spacing:-.035em;max-width:18ch}
.close-x .lede{color:var(--on-dark-3)}
.details{border:1px solid var(--line-d);background:#0F131A}
.details>div{padding:22px 22px;border-bottom:1px solid var(--line-d2)} .details>div:last-child{border-bottom:0}
.details>div:first-child{padding:15px 22px;border-bottom:1px solid var(--line-d);font-family:var(--mono);font-size:.72rem;letter-spacing:.15em;text-transform:uppercase;color:var(--on-dark-2)}
.details small{display:block;font-family:var(--mono);font-size:.66rem;letter-spacing:.13em;text-transform:uppercase;color:var(--stone);padding-bottom:9px}
.details p,.details a{font-size:.97rem;line-height:1.6;color:var(--on-dark-2)} .details a{font-size:1.05rem;color:var(--on-dark)}
.reveal-x>*{opacity:0;transform:translateY(14px);transition:opacity .6s var(--ease),transform .6s var(--ease)}
.reveal-x.is-in>*{opacity:1;transform:none}
.reveal-x.is-in>*:nth-child(2){transition-delay:.12s}.reveal-x.is-in>*:nth-child(3){transition-delay:.24s}.reveal-x.is-in>*:nth-child(4){transition-delay:.36s}

/* Page hero (internal pages) */
.page-hero{position:relative;overflow:hidden;background:var(--carbon);color:var(--on-dark);border-bottom:1px solid var(--line-d);padding-block:clamp(40px,5vw,72px) clamp(52px,6vw,96px)}
.page-hero::before{content:"";position:absolute;inset:0;pointer-events:none;background-image:linear-gradient(90deg,rgba(255,255,255,.035) 1px,transparent 1px);background-size:calc(100%/12) 100%;
  -webkit-mask-image:linear-gradient(180deg,#000 40%,transparent);mask-image:linear-gradient(180deg,#000 40%,transparent)}
.page-hero::after{content:"";position:absolute;right:-12%;top:-50%;width:60vw;height:60vw;max-width:820px;max-height:820px;pointer-events:none;background:radial-gradient(circle,rgba(212,184,122,.12),transparent 60%)}
.page-hero .container{position:relative;z-index:1}
.page-hero h1{color:var(--on-dark);max-width:17ch;font-size:clamp(2.2rem,4.4vw,3.9rem)}
.page-hero .eyebrow{color:var(--cobalt-tint);margin-bottom:22px} .page-hero .eyebrow::before{background:var(--cobalt-tint)}
.page-hero .lede{color:var(--on-dark-3);margin-top:24px}
.page-hero .btn--ghost{color:var(--on-dark);border-color:#2E3540} .page-hero .btn--ghost:hover{border-color:var(--cobalt-tint);color:var(--on-dark)}
.breadcrumbs{display:flex;flex-wrap:wrap;align-items:center;gap:10px;font-family:var(--mono);font-size:.68rem;letter-spacing:.08em;text-transform:uppercase;color:var(--stone);margin-bottom:34px}
.breadcrumbs>*{white-space:nowrap}
.breadcrumbs a{color:var(--stone)} .breadcrumbs a:hover{color:var(--on-dark)}
.breadcrumbs span[aria-hidden]{color:#3A4148}
.band{background:var(--carbon);color:var(--on-dark);position:relative;overflow:hidden;border-top:1px solid var(--line-d)}
.band::after{content:"";position:absolute;right:-10%;top:-40%;width:60vw;height:60vw;max-width:800px;max-height:800px;pointer-events:none;background:radial-gradient(circle,rgba(212,184,122,.12),transparent 60%)}
.band .container{position:relative;z-index:1}
.band h2{color:var(--on-dark);max-width:16ch} .band p{color:var(--on-dark-3)} .band .eyebrow{color:var(--stone)}
.band-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:34px}
.band a{color:var(--on-dark)}

/* 8. Ledgers, lists, cards ------------------------------------------------- */
.ledger{border-top:1px solid var(--line)}
.ledger li{display:grid;grid-template-columns:56px minmax(0,1fr);gap:clamp(14px,2vw,28px);padding:22px 0;border-bottom:1px solid var(--line);align-items:baseline;transition:background .25s}
.ledger .lg-n{font-family:var(--mono);font-size:.72rem;color:var(--slate-2);letter-spacing:.06em}
.ledger .lg-b b{display:block;font-size:1.1rem;font-weight:600;color:var(--ink);letter-spacing:-.018em;margin-bottom:5px}
.ledger .lg-b span{display:block;font-size:.95rem;color:var(--ink-2)}
.ledger--split li{grid-template-columns:56px minmax(0,240px) minmax(0,1.7fr)}
.ledger--split .lg-b b{margin:0}
.ledger--2col{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));column-gap:clamp(32px,4.4vw,80px)}
.section--dark .ledger,.section--navy .ledger,.dark .ledger{border-top-color:var(--line-d)}
.section--dark .ledger li,.section--navy .ledger li,.dark .ledger li{border-bottom-color:var(--line-d)}
.section--dark .ledger .lg-b b,.section--navy .ledger .lg-b b,.dark .ledger .lg-b b{color:var(--on-dark)}
.section--dark .ledger .lg-b span,.section--navy .ledger .lg-b span,.dark .ledger .lg-b span{color:var(--on-dark-3)}
.section--dark .ledger .lg-n,.dark .ledger .lg-n{color:var(--stone)}
.cols-2{columns:2;column-gap:clamp(28px,4vw,64px)}
.cols-3{columns:3;column-gap:clamp(28px,4vw,56px)}
.caplist li{break-inside:avoid;padding:12px 0 12px 22px;border-bottom:1px solid var(--line);position:relative;font-size:.95rem;color:var(--ink-2)}
.caplist li::before{content:"";position:absolute;left:0;top:21px;width:8px;height:2px;background:var(--cobalt)}
.section--dark .caplist li,.dark .caplist li{color:var(--on-dark-3);border-bottom-color:var(--line-d)}
.mini-list li{font-size:.9rem;color:var(--ink-2);padding:7px 0 7px 20px;position:relative}
.mini-list li::before{content:"";position:absolute;left:0;top:16px;width:7px;height:2px;background:var(--cobalt)}
.section--dark .mini-list li,.dark .mini-list li{color:var(--on-dark-3)}
.card{background:var(--paper);border:1px solid var(--line);padding:clamp(22px,2.4vw,32px);display:flex;flex-direction:column;gap:12px;transition:border-color .24s var(--ease),transform .3s var(--ease),background .24s}
.card--hover:hover{border-color:var(--line-strong);transform:translateY(-3px)}
.card h3{margin:0}
.card p{color:var(--ink-2);font-size:.95rem;margin:0}
.card-foot{margin-top:auto;padding-top:6px}
.card--flat{background:transparent;border:0;border-top:1px solid var(--line);padding:22px 0 0}
.card--rule{background:transparent;border:0;border-top:2px solid var(--ink);padding:22px 0 0}
.section--dark .card,.section--navy .card,.dark .card{background:#0F131A;border-color:var(--line-d)}
.section--dark .card--rule,.dark .card--rule{background:transparent;border-top-color:var(--on-dark)}
.section--dark .card--flat,.dark .card--flat{background:transparent;border-top-color:var(--line-d)}
.section--dark .card p,.dark .card p{color:var(--on-dark-3)}
.spec{display:grid;margin:0;border-top:1px solid var(--line)}
.spec>div{display:grid;grid-template-columns:minmax(0,200px) minmax(0,1fr);gap:clamp(12px,2vw,32px);padding:14px 0;border-bottom:1px solid var(--line)}
.spec dt{font-family:var(--mono);font-size:.66rem;font-weight:500;letter-spacing:.13em;text-transform:uppercase;color:var(--slate);margin:0;padding-top:3px}
.spec dd{margin:0;font-size:.95rem;color:var(--ink-2)}
.tags{display:flex;flex-wrap:wrap;gap:8px}
.stop-note{padding:20px 24px;border:1px solid var(--line);border-left:2px solid var(--clay);background:var(--paper)}
.stop-note strong{color:var(--ink)}
.section--dark .stop-note,.dark .stop-note{background:#0F131A;border-color:var(--line-d);border-left-color:var(--clay);color:var(--on-dark-2)}
.section--dark .stop-note strong,.dark .stop-note strong{color:var(--on-dark)}
.principles{display:grid;grid-template-columns:repeat(5,minmax(0,1fr));border-top:1px solid var(--line)}
.principles li{padding:26px 24px 30px 0;border-right:1px solid var(--line);display:flex;flex-direction:column;gap:12px}
.principles li:last-child{border-right:0}
.principles i{font-style:normal;font-family:var(--mono);font-size:.7rem;color:var(--cobalt-deep);letter-spacing:.12em}
.principles b{font-size:1.02rem;font-weight:600;color:var(--ink);line-height:1.32;letter-spacing:-.015em}
.acc{border-top:1px solid var(--line)}
.acc details{border-bottom:1px solid var(--line)}
.acc summary{display:flex;align-items:flex-start;gap:20px;padding:24px 0;cursor:pointer;list-style:none;font-weight:600;color:var(--ink);font-size:clamp(1.05rem,1.4vw,1.3rem);line-height:1.3;letter-spacing:-.02em;transition:color .2s}
.acc summary::-webkit-details-marker{display:none}
.acc summary:hover{color:var(--cobalt-deep)}
.acc summary .idx{font-family:var(--mono);font-weight:400;font-size:.72rem;color:var(--slate-2);flex:none;padding-top:7px;min-width:30px}
.acc details[open] summary .idx{color:var(--cobalt-deep)}
.acc summary .chev{margin-left:auto;flex:none;width:14px;height:14px;color:var(--slate);transition:transform .26s var(--ease);margin-top:7px}
.acc details[open] summary .chev{transform:rotate(180deg)}
.acc-body{padding:0 0 34px 50px;display:grid;gap:22px}
.acc-body>*{min-width:0}
@supports (interpolate-size:allow-keywords){
  :root{interpolate-size:allow-keywords}
  .acc details::details-content{block-size:0;overflow:hidden;transition:block-size .32s var(--ease),content-visibility .32s allow-discrete}
  .acc details[open]::details-content{block-size:auto}
}
.filters{display:flex;flex-wrap:wrap;gap:8px;margin-bottom:34px;padding-bottom:26px;border-bottom:1px solid var(--line)}
.filter-chip{background:transparent;border:1px solid var(--line-strong);padding:9px 15px;font-family:var(--mono);font-size:.7rem;letter-spacing:.1em;text-transform:uppercase;color:var(--ink-2);cursor:pointer;min-height:38px;transition:all .18s var(--ease)}
.filter-chip:hover{border-color:var(--ink);color:var(--ink)}
.filter-chip[aria-pressed="true"]{background:var(--ink);border-color:var(--ink);color:var(--porcelain)}
.insight-card{background:transparent;border-top:1px solid var(--line);padding:26px 0 30px;display:flex;flex-direction:column;gap:12px}
.insight-card .cat{font-family:var(--mono);font-size:.66rem;letter-spacing:.15em;text-transform:uppercase;color:var(--cobalt-deep)}
.insight-card h3{font-size:1.15rem}
.insight-card .prev{margin-top:auto;padding-top:14px;font-family:var(--mono);font-size:.64rem;letter-spacing:.14em;text-transform:uppercase;color:var(--slate-2)}
.insight-card .meta{font-family:var(--mono);font-size:.68rem;letter-spacing:.06em;color:var(--slate)}
.is-hidden{display:none !important}
.empty-note{padding:30px;border:1px dashed var(--line-strong);color:var(--slate);font-size:.95rem;text-align:center}
.toc{position:sticky;top:calc(var(--header-h) + 28px)}
.toc p{font-family:var(--mono);font-size:.66rem;letter-spacing:.16em;text-transform:uppercase;color:var(--slate-2);margin-bottom:14px}
.toc a{display:block;padding:9px 0 9px 16px;font-size:.9rem;color:var(--ink-2);text-decoration:none;border-left:1px solid var(--line);transition:color .18s,border-color .18s}
.toc a:hover{color:var(--ink);border-left-color:var(--ink)}
.toc a.is-current{color:var(--ink);font-weight:600;border-left-color:var(--cobalt)}

/* 9. Spine and sysmap (internal diagrams) ---------------------------------- */
.spine{position:relative;margin-top:clamp(44px,5.4vw,84px);padding-top:clamp(28px,3vw,40px);border-top:1px solid var(--line-d)}
.spine--light{border-top-color:var(--line);margin-top:0}
.spine-head{display:flex;flex-wrap:wrap;align-items:baseline;gap:12px 22px;margin-bottom:clamp(26px,3vw,40px)}
.spine-head b{font-family:var(--mono);font-weight:500;font-size:.7rem;letter-spacing:.18em;text-transform:uppercase;color:var(--on-dark)}
.spine--light .spine-head b{color:var(--ink)}
.spine-head span{font-size:.85rem;color:var(--stone)} .spine--light .spine-head span{color:var(--slate)}
.spine-head .motion-toggle{margin-left:auto}
.motion-toggle{background:none;border:1px solid #2E3540;padding:8px 13px;font-family:var(--mono);font-size:.64rem;letter-spacing:.14em;text-transform:uppercase;color:var(--on-dark-3);cursor:pointer;min-height:36px}
.motion-toggle:hover{border-color:var(--cobalt-tint);color:var(--on-dark)}
.spine--light .motion-toggle,.sysmap-foot .motion-toggle{border-color:var(--line-strong);color:var(--slate)}
.spine--light .motion-toggle:hover,.sysmap-foot .motion-toggle:hover{border-color:var(--ink);color:var(--ink)}
.spine-track{position:relative;display:grid;grid-template-columns:repeat(7,minmax(0,1fr));gap:clamp(8px,1.2vw,20px)}
.spine-track--6{grid-template-columns:repeat(6,minmax(0,1fr))}
.spine-track::before{content:"";position:absolute;left:0;right:0;top:33px;height:1px;background:var(--line-d)}
.spine--light .spine-track::before{background:var(--line-strong)}
.spine-fill{position:absolute;left:0;top:33px;height:1px;width:var(--p,0%);background:var(--cobalt-tint)}
.spine--light .spine-fill{background:var(--cobalt)}
.spine-node{position:relative;display:block;padding-right:8px}
.sn-idx{display:block;height:18px;font-family:var(--mono);font-size:.64rem;letter-spacing:.14em;color:var(--stone)}
.spine--light .sn-idx{color:var(--slate-2)}
.sn-mark{display:block;width:11px;height:11px;margin:10px 0 18px;border:1px solid #3A4148;background:var(--carbon);position:relative;z-index:1;transition:background .3s var(--ease),border-color .3s var(--ease)}
.spine--light .sn-mark{background:var(--porcelain);border-color:var(--line-strong)}
.sn-title{display:block;font-size:.9rem;font-weight:600;color:var(--on-dark-3);line-height:1.3;letter-spacing:-.012em;margin-bottom:7px}
.spine--light .sn-title{color:var(--ink)}
.sn-desc{display:block;font-size:.78rem;line-height:1.45;color:var(--stone)} .spine--light .sn-desc{color:var(--slate)}
.spine-node.is-on .sn-mark{background:var(--cobalt-tint);border-color:var(--cobalt-tint)}
.spine--light .spine-node.is-on .sn-mark{background:var(--cobalt);border-color:var(--cobalt)}
.spine-node.is-on .sn-idx{color:var(--cobalt-tint)} .spine--light .spine-node.is-on .sn-idx{color:var(--cobalt-deep)}
.spine-node.is-on .sn-title{color:var(--on-dark)}
.spine-node:last-child.is-on .sn-mark{background:var(--clay);border-color:var(--clay)}
.spine-node:last-child.is-on .sn-idx{color:var(--clay-tint)} .spine--light .spine-node:last-child.is-on .sn-idx{color:var(--clay-ink)}
.sysmap{position:relative;background:var(--paper);border:1px solid var(--line);padding:clamp(22px,2.4vw,32px)}
.sysmap-head{display:flex;align-items:baseline;justify-content:space-between;gap:16px;margin-bottom:24px}
.sysmap-head b{font-family:var(--mono);font-weight:500;font-size:.7rem;letter-spacing:.16em;text-transform:uppercase;color:var(--ink)}
.sysmap-head span{font-size:.8rem;color:var(--slate)}
.sysmap-stage{position:relative}
.sysmap-svg{position:absolute;inset:0;width:100%;height:100%;pointer-events:none;overflow:visible;color:var(--line-strong)}
.sysmap-nodes{position:relative;display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:14px 18px}
.sysmap-nodes--3{grid-template-columns:repeat(3,minmax(0,1fr))}
.node{position:relative;background:var(--porcelain);border:1px solid var(--line);padding:13px 13px 14px;min-height:82px;display:flex;flex-direction:column;gap:5px;transition:border-color .3s var(--ease),background .3s}
.node .n-idx{font-family:var(--mono);font-size:.64rem;letter-spacing:.14em;color:var(--slate-2);transition:color .3s}
.node .n-title{font-size:.85rem;font-weight:600;color:var(--ink);line-height:1.26;letter-spacing:-.012em}
.node .n-desc{font-size:.74rem;color:var(--slate);line-height:1.42}
.node::after{content:"";position:absolute;left:0;top:0;width:2px;height:100%;background:var(--cobalt);transform:scaleY(0);transform-origin:top;transition:transform .38s var(--ease)}
.node.is-active{border-color:var(--line-strong);background:var(--paper)}
.node.is-active::after{transform:scaleY(1)}
.node.is-active .n-idx{color:var(--cobalt-deep)}
.sysmap-foot{display:flex;flex-wrap:wrap;gap:16px;align-items:center;justify-content:space-between;margin-top:22px;padding-top:18px;border-top:1px solid var(--line)}
.sysmap-foot .legend{display:flex;flex-wrap:wrap;gap:16px;font-family:var(--mono);font-size:.66rem;letter-spacing:.06em;color:var(--slate);margin:0}
.sysmap-foot .legend i{display:inline-block;width:14px;height:2px;background:var(--cobalt);margin-right:7px;vertical-align:middle;font-style:normal}
.sysmap-foot .legend i.gold{background:var(--clay)}
.flow-loop{margin-top:18px;display:flex;flex-wrap:wrap;align-items:center;gap:10px;font-family:var(--mono);font-size:.66rem;letter-spacing:.14em;text-transform:uppercase;color:var(--cobalt-deep)}
.flow-loop .arrow{width:18px;height:1px;background:var(--cobalt);position:relative}
.flow-loop .arrow::after{content:"";position:absolute;right:0;top:-2px;border-left:4px solid var(--cobalt);border-top:2.5px solid transparent;border-bottom:2.5px solid transparent}

/* 10. Forms ----------------------------------------------------------------- */
.form-wrap{background:var(--paper);border:1px solid var(--line);padding:clamp(24px,3vw,40px)}
.form-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:20px 24px}
.field{display:flex;flex-direction:column;gap:7px;min-width:0}
.field--full{grid-column:1 / -1}
.field label{font-family:var(--mono);font-size:.7rem;letter-spacing:.1em;text-transform:uppercase;color:var(--ink)}
.field label .req{color:var(--clay-ink)}
.field .hint{font-size:.78rem;color:var(--slate)}
input,select,textarea{width:100%;padding:13px 14px;background:var(--porcelain);border:1px solid var(--line-strong);font-size:.95rem;color:var(--ink);transition:border-color .18s var(--ease),background .18s var(--ease)}
textarea{min-height:140px;resize:vertical}
select{appearance:none;background-image:url("../icons/chevron.svg");background-repeat:no-repeat;background-position:right 13px center;background-size:11px;padding-right:38px}
input:hover,select:hover,textarea:hover{border-color:var(--ink-2)}
input:focus,select:focus,textarea:focus{outline:2px solid var(--cobalt);outline-offset:1px;border-color:var(--cobalt);background:var(--paper)}
input[aria-invalid="true"],select[aria-invalid="true"],textarea[aria-invalid="true"]{border-color:var(--error);background:#FBF3F1}
.err{font-size:.78rem;color:var(--error);font-weight:600}
.err:empty{display:none}
.consent{display:flex;gap:13px;align-items:flex-start;padding:18px;border:1px solid var(--line);background:var(--porcelain)}
.consent input{width:18px;height:18px;flex:none;margin-top:2px;accent-color:var(--cobalt)}
.consent label{font-size:.88rem;font-weight:400;color:var(--ink-2);line-height:1.5;font-family:var(--sans);text-transform:none;letter-spacing:0}
.hp{position:absolute;left:-9999px;width:1px;height:1px;overflow:hidden}
.form-status{margin-top:22px;padding:16px 18px;font-size:.95rem;display:none}
.form-status.is-visible{display:block}
.form-status[data-kind="info"]{background:rgba(212,184,122,.07);border:1px solid rgba(212,184,122,.35);color:var(--cobalt-ink)}
.form-status[data-kind="error"]{background:#FBF3F1;border:1px solid rgba(154,46,46,.35);color:var(--error)}
.contact-aside{display:flex;flex-direction:column}
.aside-block{border-top:1px solid var(--line);padding:26px 0}
.aside-block h3{font-size:1rem;margin-bottom:12px}
.aside-block p,.aside-block li{font-size:.9rem;color:var(--ink-2)}

/* 11. Footer ---------------------------------------------------------------- */
.site-footer{background:var(--carbon);color:var(--on-dark-3);border-top:1px solid var(--line-d);padding-block:clamp(56px,6.4vw,84px) 30px;font-size:.95rem}
.footer-top{display:grid;grid-template-columns:minmax(0,1.4fr) repeat(3,minmax(0,1fr));gap:clamp(28px,3.6vw,56px);padding-bottom:48px;border-bottom:1px solid var(--line-d2)}
.footer-brand .logo-link{margin-bottom:22px}
.footer-brand p{color:var(--on-dark-3);font-size:.9rem;max-width:36ch}
.footer-col h4{font-family:var(--mono);font-weight:500;font-size:.66rem;letter-spacing:.16em;text-transform:uppercase;color:var(--stone);margin-bottom:18px}
.footer-col li{margin-bottom:12px;font-size:.9rem;color:var(--on-dark-3)}
.footer-col a{color:var(--on-dark-2);text-decoration:none;font-size:.9rem} .footer-col a:hover{color:var(--on-dark)}
.footer-statement{padding:30px 0;border-bottom:1px solid var(--line-d2);color:var(--stone);font-size:.88rem;max-width:104ch}
.footer-bottom{display:flex;flex-wrap:wrap;gap:14px 30px;align-items:center;justify-content:space-between;padding-top:26px;font-family:var(--mono);font-size:.68rem;letter-spacing:.1em;text-transform:uppercase;color:var(--stone)}
.footer-bottom nav{display:flex;flex-wrap:wrap;gap:22px}
.footer-bottom a{color:var(--stone);text-decoration:none} .footer-bottom a:hover{color:var(--on-dark)}
.to-top{position:fixed;right:22px;bottom:22px;width:46px;height:46px;background:var(--carbon);border:1px solid #2E3540;color:var(--on-dark);cursor:pointer;display:grid;place-items:center;z-index:90;
  opacity:0;visibility:hidden;transform:translateY(10px);transition:opacity .26s var(--ease),transform .26s var(--ease),visibility .26s,border-color .2s}
.to-top:hover{border-color:var(--cobalt-tint)}
.to-top.is-visible{opacity:1;visibility:visible;transform:translateY(0)}
.to-top svg{width:16px;height:16px}
.reveal{opacity:0;transform:translateY(16px);transition:opacity .7s var(--ease),transform .7s var(--ease)}
.reveal.is-in{opacity:1;transform:none}
.err-page{display:grid;place-items:center;text-align:center;padding-block:clamp(72px,12vw,150px)}
.err-code{font-family:var(--mono);font-size:clamp(4rem,12vw,8rem);line-height:1;color:var(--ink);letter-spacing:-.04em}
.legal h2{font-size:clamp(1.4rem,2vw,1.85rem);margin:52px 0 16px}
.legal h3{margin:30px 0 10px}
.legal p,.legal li{color:var(--ink-2);font-size:1rem}
.legal ul{margin:0 0 18px}
.legal ul li{padding:6px 0 6px 22px;position:relative}
.legal ul li::before{content:"";position:absolute;left:0;top:17px;width:8px;height:2px;background:var(--cobalt)}
.legal .updated{font-family:var(--mono);font-size:.72rem;letter-spacing:.04em;color:var(--slate);padding:14px 18px;border:1px solid var(--line);border-left:2px solid var(--clay);background:var(--paper);display:block}

/* 12. Motion, print, responsive -------------------------------------------- */
@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{animation-duration:.001ms !important;animation-iteration-count:1 !important;transition-duration:.001ms !important;animation-delay:0s !important;transition-delay:0s !important}
  html{scroll-behavior:auto}
  .reveal,.rise,.reveal-x>*{opacity:1;transform:none}
  .surface [data-a]{opacity:1}
  .chain li::before{transform:none} .chain li>*{opacity:1;transform:none}
  .arch .layer{opacity:1;transform:none}
  .mv i{transform:none} .mv b{opacity:1;transform:none}
  .seq-wrap{height:auto} .seq-inner{position:static;min-height:0;display:block}
  .stage .st-x{max-height:none;opacity:1} .stage .st-h b{color:var(--ink)}
}
@media print{
  .site-header,.mobile-nav,.to-top,.filters,.motion-toggle,.tool-btn,.surface-foot button,.hero-x::before,.hero-x::after,.page-hero::before,.page-hero::after,.band::after{display:none !important}
  body{background:#fff;color:#000;font-size:11pt}
  .section{padding-block:18pt;break-inside:avoid}
  .hero-x,.band,.section--dark,.dark,.page-hero,.close-x,.site-footer{background:#fff !important;color:#000 !important}
  .hero-x h1,.band h2,.page-hero h1,.dark h2,.dark h3,.dark p,.close-x h2,.site-footer a{color:#000 !important}
  .surface [data-a],.reveal,.rise,.chain li>*,.layer,.reveal-x>*{opacity:1 !important;transform:none !important}
  .seq-wrap{height:auto} .seq-inner{position:static} .stage .st-x{max-height:none;opacity:1}
  .card,.sysmap,.form-wrap,.gate,.paths{border:1px solid #ccc;break-inside:avoid}
  a{color:#000;text-decoration:underline}
  .acc details{break-inside:avoid} .acc-body{display:block !important}
}
@media (max-width:1240px){
  .spine-track{grid-template-columns:repeat(4,minmax(0,1fr));row-gap:30px}
  .spine-track::before,.spine-fill{display:none}
  .layer{grid-template-columns:44px minmax(0,170px) minmax(0,1fr) 140px}
}
@media (max-width:1080px){
  .nav,.header-cta{display:none}
  .burger{display:flex}
  .hero-grid{grid-template-columns:minmax(0,1fr);min-height:0;padding-bottom:64px}
  .hero-x h1{max-width:14ch}
  .grid--aside{grid-template-columns:minmax(0,1fr)}
  .toc{display:none}
  .principles{grid-template-columns:repeat(2,minmax(0,1fr))}
  .principles li{border-right:0;border-bottom:1px solid var(--line);padding-right:0}
  .section-head--wide{grid-template-columns:minmax(0,1fr);gap:22px}
  .seq-grid{grid-template-columns:minmax(0,1fr);gap:34px} .seq-copy{gap:16px}
  .mode-body{grid-template-columns:minmax(0,1fr);gap:34px}
  .gate{grid-template-columns:minmax(0,1fr)} .gate-side{border-right:0;border-bottom:1px solid var(--line)} .route-body{min-height:0}
  .paths{grid-template-columns:minmax(0,1fr)} .paths-side{border-right:0;border-bottom:1px solid var(--line);flex-direction:row}
  .path-btn{border-bottom:0;border-right:1px solid var(--line);box-shadow:inset 0 -2px 0 transparent} .path-btn:last-child{border-right:0}
  .path-btn[aria-pressed="true"]{box-shadow:inset 0 -2px 0 var(--cobalt)}
  .close-grid{grid-template-columns:minmax(0,1fr)}
  .sticky-side{position:static}
  .chain{grid-template-columns:repeat(4,minmax(0,1fr))} .chain li{border-top:1px solid var(--line);margin-top:-1px}
  .strip{grid-template-columns:repeat(2,minmax(0,1fr))}
}
@media (max-width:900px){
  :root{--header-h:72px}
  .grid--4,.grid--3{grid-template-columns:repeat(2,minmax(0,1fr))}
  .grid--split,.grid--split-rev{grid-template-columns:minmax(0,1fr);gap:32px}
  .footer-top{grid-template-columns:repeat(2,minmax(0,1fr))}
  .ledger--split li{grid-template-columns:48px minmax(0,1fr)}
  .ledger--split li>span:last-child{grid-column:2}
  .sysmap-nodes{grid-template-columns:repeat(2,minmax(0,1fr))}
  .spec>div{grid-template-columns:minmax(0,1fr);gap:5px}
  .cols-3{columns:2}
  .seq-wrap{height:auto} .seq-inner{position:static;min-height:0;padding:0;display:block}
  .seq-progress{display:none}
  .stage .st-x{max-height:none;opacity:1} .stage .st-h b,.stage.is-past .st-h b{color:var(--ink)} .stage .st-h span{color:var(--clay-ink)} .stage .rail{background:var(--cobalt);transform:none}
  .stage .st-i{color:var(--cobalt-deep)} .stage.is-active{background:transparent} .stage.is-active .st-i{padding-left:0}
  .modes{grid-template-columns:minmax(0,1fr)} .mode-tab{border-left:0;border-top:1px solid var(--line-d);padding:18px 0 16px} .mode-tab:first-child{border-top:0}
  .mode-tab[aria-selected="true"]{border-bottom-color:transparent;box-shadow:inset 0 -2px 0 var(--cobalt)}
  .layer{grid-template-columns:minmax(0,1fr);gap:8px;padding:20px}
  .layer .l-d{justify-content:flex-start}
  .fam{grid-template-columns:minmax(0,1fr);gap:16px} .fam .f-m{max-width:320px}
  .sector{grid-template-columns:minmax(0,1fr);gap:8px}
  .acc-body{padding-left:0}
  .surface{display:none}
}
@media (max-width:680px){
  body{font-size:1rem}
  .grid--2,.grid--3,.grid--4{grid-template-columns:minmax(0,1fr)}
  .cols-2,.cols-3{columns:1}
  .ledger--2col{grid-template-columns:minmax(0,1fr)}
  .principles{grid-template-columns:minmax(0,1fr)}
  .form-grid{grid-template-columns:minmax(0,1fr)}
  .footer-top{grid-template-columns:minmax(0,1fr);gap:34px}
  .hero-actions .btn,.band-actions .btn{width:100%}
  .spine-track{grid-template-columns:minmax(0,1fr);gap:0}
  .spine-track::before{display:block;left:5px;right:auto;top:0;bottom:0;width:1px;height:auto}
  .spine-fill{display:block;left:5px;top:0;width:1px;height:var(--p,0%)}
  .spine-node{display:grid;grid-template-columns:34px minmax(0,1fr);column-gap:14px;padding:0 0 24px}
  .sn-idx{grid-column:2;height:auto;margin-bottom:4px}
  .sn-mark{grid-row:1 / span 3;grid-column:1;margin:4px 0 0}
  .sn-title{grid-column:2;margin-bottom:4px} .sn-desc{grid-column:2}
  .sysmap-nodes{grid-template-columns:minmax(0,1fr)} .sysmap-svg{display:none}
  .ledger li,.ledger--split li{grid-template-columns:40px minmax(0,1fr)}
  .chain{grid-template-columns:repeat(2,minmax(0,1fr))}
  .paths-side{flex-direction:column} .path-btn{border-right:0;border-bottom:1px solid var(--line)} .path-btn:last-child{border-bottom:0}
  .path-btn[aria-pressed="true"]{box-shadow:inset 2px 0 0 var(--cobalt)}
  .path-pane{padding:22px 20px 24px}
  .phase-cols{grid-template-columns:minmax(0,1fr) !important}
  .route-line{grid-template-columns:minmax(0,1fr);row-gap:8px} .route-line>i{display:none}
  .cond{grid-template-columns:minmax(0,1fr)} .cond .c-s{justify-self:start}
  .strip{grid-template-columns:minmax(0,1fr)}
  .footer-bottom{flex-direction:column;align-items:flex-start}
  .stage{grid-template-columns:6px 36px minmax(0,1fr)}
  .stage .st-h{flex-direction:column;align-items:flex-start;gap:4px}
}
@media (max-width:420px){
  .hero-eyebrow{font-size:.7rem;gap:10px}
  .chain{grid-template-columns:minmax(0,1fr)}
  .logo-text span{display:none}
}

/* 20. Motion layer (assets/js/motion.js) ----------------------------------- */
@keyframes mRise{from{opacity:0;transform:translateY(22px)}to{opacity:1;transform:none}}
@keyframes mTimer{from{transform:scaleX(0)}to{transform:scaleX(1)}}
@keyframes mTimerY{from{transform:scaleY(0)}to{transform:scaleY(1)}}
@keyframes mPhase{from{transform:scaleX(0);opacity:.2}to{transform:none;opacity:1}}
@keyframes mTravel{0%{left:0;opacity:0}12%{opacity:1}78%{opacity:1}92%,100%{left:calc(100% - 8px);opacity:0}}
@keyframes mSpine{0%{top:20px;opacity:0}15%{opacity:1}85%{opacity:1}100%{top:calc(100% - 64px);opacity:0}}
@keyframes mFlow{to{background-position:20px 0}}
@keyframes mDraw{to{stroke-dashoffset:0}}
@media (prefers-reduced-motion:no-preference){
}
.m-progress{position:fixed;top:0;left:0;right:0;height:2px;background:var(--cobalt);transform:scaleX(0);transform-origin:0 50%;z-index:400;pointer-events:none}
.js-motion .site-header{transition:transform .5s var(--ease),background .3s var(--ease),border-color .3s var(--ease)}
.js-motion .site-header.m-hidden{transform:translateY(-100%)}
.js-motion main{transition:opacity .34s var(--ease),transform .34s var(--ease)}
body.m-leaving main{opacity:0;transform:translateY(-14px)}

/* headings + generic rise */
.js-motion .m-split .w{display:inline-block;overflow:hidden;vertical-align:top;padding:0 .08em .12em 0;margin:0 -.08em -.12em 0}
.js-motion .m-split .wi{display:inline-block;transform:translateY(110%);transition:transform 1.15s var(--ease)}
.js-motion .m-split.is-split-in .wi{transform:none}
.js-motion .m-up{opacity:0;transform:translateY(44px);transition:opacity 1s var(--ease),transform 1.15s var(--ease);transition-delay:var(--md,0ms)}
.js-motion .m-up.is-in{opacity:1;transform:none}
.js-motion .m-block{opacity:0;transform:translateY(60px) scale(.985);transition:opacity 1.1s var(--ease),transform 1.3s var(--ease)}
.js-motion .m-block.is-in{opacity:1;transform:none}
.js-motion .sectors>*,.js-motion .strip>*,.js-motion .reveal-x>*{transition:opacity .9s var(--ease),transform 1s var(--ease),background .25s,padding .35s var(--ease);transition-delay:var(--md,0ms)}
.js-motion .sectors:not(.m-go)>*,.js-motion .strip:not(.m-go)>*,.js-motion .reveal-x:not(.m-go)>*{opacity:0;transform:translateY(40px)}
.js-motion .sectors.reveal,.js-motion .strip.reveal{opacity:1;transform:none}
.sector{transition:padding .35s var(--ease),background .25s}
.sector:hover{padding-left:14px;background:var(--paper)} .sector:hover span:first-child{color:var(--cobalt-deep)}
.strip article:hover .s-k{color:var(--on-dark)}

/* 01 chain */
.js-motion .chain li::before{transition:transform 1.1s var(--ease)}
.js-motion .chain li>*{transition:opacity .8s var(--ease),transform .9s var(--ease),color .4s}
.js-motion .chain:not(.m-go) li::before{transform:scaleX(0)}
.js-motion .chain:not(.m-go) li>*{opacity:0;transform:translateY(22px)}
.js-motion .chain.m-go li::before{transition-delay:var(--cd)}
.js-motion .chain.m-go li>*{transition-delay:calc(var(--cd) + .18s)}
.chain li::after{content:"";position:absolute;top:-1px;left:0;right:0;height:2px;background:var(--ink);transform:scaleX(0);transform-origin:left;pointer-events:none}
.chain li.m-live::after{animation:mTimer 1.3s linear both}
.chain li.m-live .c-t{color:var(--cobalt-deep)}
.chain li.m-live .c-i{color:var(--ink)}

/* 02 sequence */
@media (min-width:900px){
  .js-motion .seq-wrap{height:260vh}
  .js-motion .seq-inner{align-items:flex-start;padding-top:clamp(40px,9vh,110px)}
  .js-motion .seq-grid{align-items:start}
}
.js-motion .seq-progress .track i{transition:none}
.js-motion .stage .st-x{display:grid;grid-template-rows:0fr;max-height:none;transition:grid-template-rows .75s var(--ease),opacity .6s var(--ease)}
.js-motion .stage .st-x>div{min-height:0;overflow:hidden}
.js-motion .stage.is-active .st-x{grid-template-rows:1fr;max-height:none}
.js-motion .stage.is-active .rail{transform:scaleY(var(--sp,1));transition:transform .15s linear,background .4s}
.js-motion .stage .st-h b{transition:color .5s,transform .6s var(--ease)}
.js-motion .stage.is-active .st-h b{transform:translateX(4px)}

/* 03 operating model */
.mode-tab{position:relative}
.js-motion .modes.m-auto .mode-tab[aria-selected="true"]::after{content:"";position:absolute;left:0;right:0;bottom:-2px;height:2px;background:var(--on-dark);transform-origin:left;animation:mTimer 6s linear both}
.js-motion .mode-tab:not(:first-child).m-x{}
.js-motion .mode-pane.is-on>*{animation:mRise .8s var(--ease) both}
.js-motion .mode-pane.is-on>*:nth-child(2){animation-delay:.1s}.js-motion .mode-pane.is-on>*:nth-child(3){animation-delay:.2s}.js-motion .mode-pane.is-on>*:nth-child(4){animation-delay:.3s}
.js-motion .mode-pane.is-on .marks li{animation:mRise .7s var(--ease) both}
.js-motion .mode-pane.is-on .marks li:nth-child(1){animation-delay:.3s}.js-motion .mode-pane.is-on .marks li:nth-child(2){animation-delay:.38s}.js-motion .mode-pane.is-on .marks li:nth-child(3){animation-delay:.46s}.js-motion .mode-pane.is-on .marks li:nth-child(4){animation-delay:.54s}.js-motion .mode-pane.is-on .marks li:nth-child(5){animation-delay:.62s}
.js-motion .sys-node{transform:translateX(-18px);transition:max-height .6s var(--ease),opacity .55s var(--ease),transform .7s var(--ease)}
.js-motion .sys-node.is-on{transform:none}
.js-motion .sys [data-for]{animation:mRise .7s var(--ease) both}
.js-motion .sys-out [data-for]:nth-of-type(n){animation-delay:.25s}
.js-motion .sys-spine::after{content:"";position:absolute;left:calc(50% - 2px);top:20px;width:5px;height:44px;background:linear-gradient(transparent,var(--cobalt-tint),transparent);animation:mSpine 2.6s ease-in-out infinite;pointer-events:none}
.js-motion .sys[data-mode="advise"] .sys-spine::after{background:linear-gradient(transparent,var(--clay-tint),transparent)}

/* 04 capability families */
.js-motion .fam>*{transition:opacity .9s var(--ease),transform 1s var(--ease)}
.js-motion .fam:not(.m-go)>*{opacity:0;transform:translateY(28px)}
.js-motion .fam.m-go>.f-b{transition-delay:.12s}.js-motion .fam.m-go>.f-m{transition-delay:.24s}
.js-motion .fam .mv{position:relative}
.js-motion .fam .mv i{transition:transform .75s var(--ease)}
.js-motion .fam .mv b{transition:opacity .5s var(--ease),transform .6s var(--ease)}
.js-motion .fam:not(.m-go) .mv i{transform:scaleX(0)}
.js-motion .fam:not(.m-go) .mv b{opacity:0;transform:scale(.4)}
.js-motion .fam.m-go .mv>*:nth-child(1){transition-delay:.4s}.js-motion .fam.m-go .mv>*:nth-child(2){transition-delay:.62s}.js-motion .fam.m-go .mv>*:nth-child(3){transition-delay:.84s}
.js-motion .fam.m-go .mv>*:nth-child(4){transition-delay:1.06s}.js-motion .fam.m-go .mv>*:nth-child(5){transition-delay:1.28s}.js-motion .fam.m-go .mv>*:nth-child(6){transition-delay:1.5s}
.js-motion .fam.m-go .mv>*:nth-child(7){transition-delay:1.72s}.js-motion .fam.m-go .mv>*:nth-child(8){transition-delay:1.94s}.js-motion .fam.m-go .mv>*:nth-child(9){transition-delay:2.16s}
.js-motion .fam.m-go .mv::after{content:"";position:absolute;top:50%;left:0;width:8px;height:8px;margin-top:-4px;border-radius:50%;background:var(--paper);box-shadow:0 0 0 2px var(--cobalt);opacity:0;animation:mTravel 4.2s var(--ease) infinite;animation-delay:calc(2.6s + var(--fi,0) * .5s)}
.fam{transition:background .3s,padding .4s var(--ease)}
.fam:hover{background:var(--paper);padding-inline:14px}

/* 05 architecture */
.js-motion .arch .layer{transition:opacity 1s var(--ease),transform 1.1s var(--ease),box-shadow .4s,border-color .4s}
.js-motion .arch:not(.m-go) .layer{opacity:0;transform:translateY(48px)}
.js-motion .arch.m-go .layer:nth-child(6){transition-delay:0s}.js-motion .arch.m-go .layer:nth-child(5){transition-delay:.24s}.js-motion .arch.m-go .layer:nth-child(4){transition-delay:.48s}
.js-motion .arch.m-go .layer:nth-child(3){transition-delay:.72s}.js-motion .arch.m-go .layer:nth-child(2){transition-delay:.96s}.js-motion .arch.m-go .layer:nth-child(1){transition-delay:1.2s}
.js-motion .arch.m-go.has-focus .layer{transition:opacity .5s var(--ease),transform .5s var(--ease),box-shadow .4s,border-color .4s;transition-delay:0s!important}

/* 06 gate */
.m-demo{font-size:.62rem;letter-spacing:.1em;color:var(--clay-ink);display:inline-flex;align-items:center;gap:8px;text-transform:uppercase}
.m-demo::before{content:"";width:6px;height:6px;border-radius:50%;background:var(--clay);animation:mBlink 1.4s ease-in-out infinite}
@keyframes mBlink{50%{opacity:.2}}
.js-motion .route-line{grid-template-columns:minmax(0,1fr) minmax(40px,72px) minmax(0,1fr)}
.js-motion .route-line>i{background:repeating-linear-gradient(90deg,var(--cobalt) 0 10px,transparent 10px 20px);animation:mFlow .6s linear infinite}
.js-motion .gate.is-held .route-line>i{background:var(--clay);animation:none}
.js-motion .gate [data-when]{animation:mRise .6s var(--ease) both}
.js-motion .route-steps li:nth-child(2){animation-delay:.12s}.js-motion .route-steps li:nth-child(4){animation-delay:.14s}.js-motion .route-steps li:nth-child(5){animation-delay:.28s}
.js-motion .verdict .v-bar{transition:width 1s var(--ease),background .4s}
.cond{transition:background .3s}
.cond .c-s{transition:color .3s,border-color .3s,transform .4s var(--ease),background .3s}
.cond.m-ping{background:var(--porcelain)} .cond.m-ping .c-s{transform:scale(1.08)}

/* 07 pathways */
.js-motion .paths.m-auto .path-btn[aria-pressed="true"]{position:relative;box-shadow:inset 2px 0 0 var(--line-strong)}
.js-motion .paths.m-auto .path-btn[aria-pressed="true"]::after{content:"";position:absolute;left:0;top:0;bottom:0;width:2px;background:var(--cobalt);transform-origin:top;animation:mTimerY 7s linear both}
.js-motion .phases div{animation-name:mPhase;animation-duration:1s}
.js-motion .phases div:nth-child(1){animation-delay:.1s}.js-motion .phases div:nth-child(2){animation-delay:.28s}.js-motion .phases div:nth-child(3){animation-delay:.46s}.js-motion .phases div:nth-child(4){animation-delay:.64s}.js-motion .phases div:nth-child(5){animation-delay:.82s}
.js-motion .path-pane.is-on .pp-h,.js-motion .path-pane.is-on .phase-cols>div,.js-motion .path-pane.is-on .path-foot{animation:mRise .8s var(--ease) both}
.js-motion .path-pane.is-on .phase-cols>div:nth-child(1){animation-delay:.4s}.js-motion .path-pane.is-on .phase-cols>div:nth-child(2){animation-delay:.55s}.js-motion .path-pane.is-on .phase-cols>div:nth-child(3){animation-delay:.7s}.js-motion .path-pane.is-on .phase-cols>div:nth-child(4){animation-delay:.85s}.js-motion .path-pane.is-on .phase-cols>div:nth-child(5){animation-delay:1s}
.js-motion .path-pane.is-on .path-foot{animation-delay:1.1s}
@media (prefers-reduced-motion:reduce){.m-progress{display:none}}
/* 21. Logo, safety chapter, sequence v2 ------------------------------------ */
:root{--amber:#8F6C2F;--amber-tint:#D4B87A}
.logo-link{gap:9px}
.logo-text b{font-family:"Sora",var(--sans);font-size:2.12rem;font-weight:600;letter-spacing:-.035em;color:var(--amber);line-height:.8;transform:translateY(1px)}
.site-header--dark .logo-text b,.footer-brand .logo-text b{color:var(--amber-tint)}
.site-header.is-compact .logo-text b{font-size:1.86rem}
.logo-text{gap:14px}
@media (prefers-reduced-motion:no-preference){
}
@keyframes mFade{to{opacity:1}}
@media (max-width:640px){.logo-text b{font-size:1.8rem}}

.safety-top{display:grid;grid-template-columns:minmax(0,1.1fr) minmax(0,.9fr);gap:clamp(28px,5vw,80px);align-items:end;margin-bottom:clamp(40px,5vw,64px)}
.safety-top h2{font-size:clamp(2.1rem,4vw,3.4rem);line-height:1.04}
.safety-top .lede{margin:0}
.safety-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));border-top:1px solid var(--line-d);border-left:1px solid var(--line-d)}
.sf{position:relative;padding:28px 24px 26px;border-right:1px solid var(--line-d);border-bottom:1px solid var(--line-d);display:flex;flex-direction:column;gap:14px;transition:background .3s var(--ease)}
.sf::before{content:"";position:absolute;top:-1px;left:0;right:0;height:2px;background:var(--clay-tint);transform:scaleX(0);transform-origin:left;transition:transform .6s var(--ease)}
.sf:hover{background:#0F131A} .sf:hover::before{transform:scaleX(1)}
.sf-k{font-family:var(--mono);font-size:.68rem;letter-spacing:.14em;color:var(--clay-tint)}
.sf h3{font-size:clamp(1.15rem,1.4vw,1.32rem);color:var(--on-dark)}
.sf p{font-size:.94rem;line-height:1.6;color:var(--on-dark-3);flex:1;margin:0}
.sf-flow{display:flex;align-items:center;gap:10px;padding-top:16px;border-top:1px solid var(--line-d);font-family:var(--mono);font-size:.6rem;letter-spacing:.1em;text-transform:uppercase;color:var(--on-dark-2)}
.sf-flow i{position:relative;flex:1;height:1px;background:#2E3540;min-width:14px}
.js-motion .sf-flow i::after{content:"";position:absolute;top:-3px;left:0;width:7px;height:7px;background:var(--clay-tint);opacity:0;animation:mTravel 3.4s var(--ease) infinite}
.js-motion .sf:nth-child(2) .sf-flow i::after{animation-delay:.6s}.js-motion .sf:nth-child(3) .sf-flow i::after{animation-delay:1.2s}.js-motion .sf:nth-child(4) .sf-flow i::after{animation-delay:1.8s}
.js-motion .sf-flow i+span+i::after{animation-delay:1.7s}
.safety-frame{display:flex;align-items:center;gap:24px;flex-wrap:wrap;padding:22px 0;border-bottom:1px solid var(--line-d)}
.sf-l{font-family:var(--mono);font-size:.68rem;letter-spacing:.14em;text-transform:uppercase;color:var(--stone)}
.safety-frame ul{display:flex;flex-wrap:wrap;gap:10px;margin:0;padding:0;list-style:none}
.safety-frame li{font-family:var(--mono);font-size:.7rem;letter-spacing:.06em;color:var(--on-dark-2);border:1px solid var(--line-d);padding:8px 12px;transition:border-color .25s,color .25s}
.safety-frame li:hover{border-color:var(--clay-tint);color:var(--on-dark)}
@media (max-width:1080px){.safety-grid{grid-template-columns:repeat(2,minmax(0,1fr))}}
@media (max-width:700px){.safety-grid,.safety-top{grid-template-columns:minmax(0,1fr)}}

/* Delivery sequence v2: normal scroll, stages reveal and spotlight */
.seq-wrap{height:auto}
.seq-inner{position:static;min-height:0;display:block;padding:var(--sp) 0}
.seq-grid{align-items:start}
.seq-progress{display:none}
.stage{position:relative;grid-template-columns:1px 64px minmax(0,1fr);background:transparent!important;transition:opacity .6s var(--ease)}
.stage .rail{background:var(--line-strong);transform:none;transition:background .5s}
.stage .st-i{padding:30px 0 0 22px;color:var(--slate-2)}
.stage .st-b{padding:26px 0 30px}
.stage .st-h b{font-size:clamp(1.3rem,1.8vw,1.7rem);color:var(--ink)}
.stage .st-h span{color:var(--slate)}
.stage .st-x,.js-motion .stage .st-x{display:grid;grid-template-rows:1fr;max-height:none;opacity:1}
.stage .st-x>div{min-height:0}
.stage.is-active .rail,.stage.is-past .rail{background:var(--line-strong);transform:none}
.stage.is-active .st-i{padding-left:22px}
.stage.is-active .st-h b,.stage.is-past .st-h b{color:var(--ink)}
.js-motion .stage{opacity:.42}
.js-motion .stage.is-active{opacity:1}
.js-motion .stage.is-active .rail{background:var(--ink)}
.js-motion .stage.is-active .st-i{color:var(--ink)}
.js-motion .stage.is-active .st-h span{color:var(--clay-ink)}
.js-motion .stage.is-active .st-h b{transform:none}
.js-motion .stage .rail{transform:none!important}
.js-motion .stage:not(.m-go) .st-b,.js-motion .stage:not(.m-go) .st-i{opacity:0;transform:translateY(36px)}
.js-motion .stage .st-b,.js-motion .stage .st-i{transition:opacity .9s var(--ease),transform 1s var(--ease),color .5s,padding .45s var(--ease)}
.js-motion .stage .rail{transform-origin:top}
.js-motion .stage:not(.m-go) .rail{clip-path:inset(0 0 100% 0)}
.js-motion .stage .rail{clip-path:inset(0 0 0 0);transition:clip-path 1.1s var(--ease),background .5s}
@media (max-width:900px){.stage{grid-template-columns:1px 48px minmax(0,1fr)} .stage .st-i{padding-left:14px} .stage.is-active .st-i{padding-left:14px}}

/* 22. Logo v3, colour and motion refinements ---------------------------- */
.site-header.is-compact .header-inner{height:var(--header-h)}
.logo-link{gap:12px}
.logo-mark,.site-header.is-compact .logo-mark{width:46px;height:46px;overflow:visible}
.logo-text{gap:14px}
.logo-text b,.site-header.is-compact .logo-text b{font-family:"Cormorant Garamond",Georgia,serif;font-size:2.3rem;font-weight:600;letter-spacing:.005em;color:var(--amber);line-height:.8;transform:translateY(-1px)}
.site-header--dark .logo-text b,.footer-brand .logo-text b{color:#D4B87A}
.logo-text span{font-family:var(--sans);font-weight:500;font-size:.62rem;letter-spacing:.36em;border-left:1px solid rgba(212,184,122,.55);padding-left:14px}
.site-header--dark .logo-text span,.footer-brand .logo-text span{color:#A6B0BB}
.logo-link:hover .lm-ring{stroke-width:4}
.logo-mark .lm-ring{transition:stroke-width .3s var(--ease)}
.logo-mark .lm-s{transform-box:fill-box;transform-origin:50% 60%}
@media (max-width:640px){.logo-text b,.site-header.is-compact .logo-text b{font-size:2rem}.logo-mark,.site-header.is-compact .logo-mark{width:40px;height:40px}}
@keyframes lmRise{from{opacity:0;transform:translateY(10%)}to{opacity:1;transform:none}}
@media (prefers-reduced-motion:no-preference){
  .logo-mark .lm-ring{stroke-dasharray:1;stroke-dashoffset:1;animation:mDraw 1.3s var(--ease) .1s forwards}
  .logo-mark .lm-arc{stroke-dasharray:1;stroke-dashoffset:1;animation:mDraw .9s var(--ease) .55s forwards}
  .logo-mark .lm-arc2{animation-delay:.8s}
  .logo-mark .lm-node{opacity:0;animation:mFade .4s var(--ease) 1.35s forwards}
  .logo-mark .lm-node2{animation-delay:1.55s}
  .logo-mark .lm-s{opacity:0;animation:lmRise .7s var(--ease) .35s forwards}
  .logo-mark .lm-s2{animation-delay:.5s}
}
.burger{color:var(--ink)}
.site-header--dark .burger{color:#F4F1EB;border-color:rgba(212,184,122,.55)}
.site-header--dark .burger:hover{border-color:#D4B87A;background:rgba(212,184,122,.08)}
@media (max-width:899px){.js-motion .stage .st-x{grid-template-rows:1fr;opacity:1}.js-motion .stage .st-h b{transform:none}}

/* safety chapter: live cycling */
.sf{overflow:hidden}
.sf::after{content:"";position:absolute;inset:0;background:radial-gradient(130% 90% at 0% 0%,rgba(212,184,122,.16),transparent 62%);opacity:0;transition:opacity .6s var(--ease);pointer-events:none}
.sf.is-live,.sf:hover{background:#12161D}
.sf.is-live::after,.sf:hover::after{opacity:1}
.sf.is-live::before{transform:scaleX(1);background:#D4B87A}
.sf.is-live .sf-k{color:#D4B87A}
.sf>*{position:relative;z-index:1}
.sf-flow span{padding:5px 8px;border:1px solid var(--line-d);transition:color .4s,background .4s,border-color .4s}
.sf:hover .sf-flow span{border-color:rgba(212,184,122,.5)}
.sf-flow span.on{color:#0B0E14;background:#D4B87A;border-color:#D4B87A}
.js-motion .sf-flow i::after{background:#D4B87A;border-radius:50%;box-shadow:0 0 10px 2px rgba(212,184,122,.55)}
.sf.is-live .sf-flow i{background:rgba(212,184,122,.45)}

/* training strip hover */
.strip article{position:relative}
.strip article::before{content:"";position:absolute;top:-1px;left:0;right:0;height:2px;background:#D4B87A;transform:scaleX(0);transform-origin:left;transition:transform .5s var(--ease)}
.strip article:hover{background:#17140E}
.strip article:hover::before{transform:scaleX(1)}
.strip article:hover .s-k,.strip article:hover h3{color:#D4B87A}

/* control gate: live route, pulse and decision record */
.cond .c-s{display:inline-flex;align-items:center;gap:8px}
.cond .c-s::before{content:"";width:7px;height:7px;border-radius:50%;background:currentColor}
.cond[aria-checked="true"] .c-s{background:var(--cobalt);border-color:var(--cobalt);color:#fff}
.cond[aria-checked="false"] .c-s{background:#FBF1EC}
.route-line>i{position:relative}
.r-tok{position:absolute;top:50%;left:0;width:10px;height:10px;margin-top:-5px;border-radius:50%;background:var(--cobalt);box-shadow:0 0 0 4px rgba(143,108,47,.18);opacity:0}
.gate.r-run .r-tok{animation:rTok 1.5s var(--ease) infinite}
.gate.r-run.is-held .r-tok{background:var(--clay);box-shadow:0 0 0 4px rgba(198,96,60,.2);animation:rHold 1.8s var(--ease) infinite}
@keyframes rTok{0%{left:0;opacity:0}15%{opacity:1}85%{opacity:1}100%{left:calc(100% - 10px);opacity:0}}
@keyframes rHold{0%{left:0;opacity:0}20%{opacity:1}55%{left:calc(50% - 5px);opacity:1}100%{left:calc(50% - 5px);opacity:0}}
.route-line>span:first-child{position:relative;padding-left:26px}
.route-line>span:first-child::before{content:"";position:absolute;left:11px;top:50%;width:6px;height:6px;margin-top:-3px;background:var(--cobalt);transition:background .3s}
.gate.is-held .route-line>span:first-child::before{background:var(--clay)}
.gate.r-run .route-line>span:last-child{animation:rGlow 1.5s ease-in-out infinite;background:#F7F1E4}
.gate.r-run.is-held .route-line>span:last-child{animation-name:rPulse;background:#FBF1EC}
@keyframes rGlow{0%,100%{box-shadow:0 0 0 0 rgba(143,108,47,.0)}50%{box-shadow:0 0 0 6px rgba(143,108,47,.14)}}
@keyframes rPulse{0%,100%{box-shadow:0 0 0 0 rgba(198,96,60,.35)}50%{box-shadow:0 0 0 9px rgba(198,96,60,0)}}
.route-steps li::after{background:linear-gradient(90deg,var(--cobalt) 0 50%,var(--line) 50% 100%);background-size:200% 100%;background-position:100% 0}
.route-steps li.clay::after{background-image:linear-gradient(90deg,var(--clay) 0 50%,var(--line) 50% 100%)}
.route-steps li.mute::after{background-image:linear-gradient(90deg,var(--line-strong) 0 50%,var(--line) 50% 100%)}
.gate.r-run .route-steps li::after{animation:rFill .7s var(--ease) both}
.gate.r-run .route-steps li:nth-child(1)::after,.gate.r-run .route-steps li:nth-child(3)::after{animation-delay:.25s}
.gate.r-run .route-steps li:nth-child(2)::after,.gate.r-run .route-steps li:nth-child(4)::after{animation-delay:.65s}
.gate.r-run .route-steps li:nth-child(5)::after{animation-delay:1.05s}
@keyframes rFill{to{background-position:0 0}}
.verdict .v-rec{display:flex;flex-direction:column;gap:10px}
.v-rec-h{display:flex;justify-content:space-between;gap:16px}
.v-rec-h span:last-child{color:var(--ink-2)}
.v-log{list-style:none;margin:0;padding:0;display:flex;flex-direction:column;min-height:96px}
.v-log li{display:grid;grid-template-columns:auto auto minmax(0,1fr);align-items:center;gap:12px;padding:7px 0;border-top:1px dashed var(--line);font-family:var(--mono);font-size:.64rem;letter-spacing:.08em;text-transform:uppercase;color:var(--slate)}
.v-log li:first-child{border-top:0}
.v-log .l-n{color:var(--ink-2)}
.v-log .l-s{padding:3px 7px;border:1px solid currentColor}
.v-log .l-s.ok{color:var(--cobalt-deep)} .v-log .l-s.no{color:var(--clay-ink)}
.v-log .l-f{display:flex;gap:6px;justify-content:flex-end;flex-wrap:wrap}
.v-log .l-f i{font-style:normal;padding:2px 5px;background:var(--mineral);color:var(--ink-2)}
.v-log .l-f i.no{background:#F5DED4;color:var(--clay-ink);text-decoration:line-through}
.v-log li.is-new{animation:logIn .6s var(--ease) both}
.v-log li.is-new .l-n{animation:logFlash 1.6s ease-out both}
@keyframes logIn{from{opacity:0;transform:translateY(-8px)}to{opacity:1;transform:none}}
@keyframes logFlash{0%{background:rgba(212,184,122,.55)}100%{background:transparent}}
@media (prefers-reduced-motion:reduce){.r-tok{display:none}.gate.r-run *,.v-log li{animation:none !important}.route-steps li::after{background-position:0 0}}
.js-motion .m-split .wi{will-change:transform;backface-visibility:hidden}
.js-motion .m-up,.js-motion .m-block{backface-visibility:hidden}
.sf-k{color:#D4B87A}
.sf::before{background:#D4B87A}
.safety-frame li:hover{border-color:#D4B87A}
.sf.is-live .sf-flow span:not(.on){border-color:rgba(212,184,122,.45);color:#F4F1EB}
/* 23. Articles + sequence gap fix --------------------------------------- */
.js-motion .seq-wrap{height:auto}
.js-motion .seq-inner{position:static;min-height:0;display:block;padding:var(--sp) 0}
.article-title{max-width:22ch;font-size:clamp(2.1rem,4.2vw,3.5rem)}
.article-meta{display:flex;flex-wrap:wrap;align-items:center;gap:10px 16px;margin-top:26px;font-family:var(--mono);font-size:.7rem;letter-spacing:.1em;text-transform:uppercase;color:var(--stone)}
.article-meta>*{flex:none;white-space:nowrap;display:inline-block}
.article-meta i{width:5px;height:5px;background:#D4B87A}
.prose{max-width:70ch;font-size:1.0625rem;line-height:1.75;color:var(--ink-2)}
.prose>p:first-child{font-size:1.2rem;line-height:1.65;color:var(--ink)}
.prose h2{font-size:clamp(1.45rem,2.2vw,1.85rem);margin:2.2em 0 .7em;color:var(--ink)}
.prose p{margin:0 0 1.15em}
.prose ul{margin:0 0 1.4em;padding:0;list-style:none;border-top:1px solid var(--line)}
.prose ul li{position:relative;padding:14px 0 14px 26px;border-bottom:1px solid var(--line)}
.prose ul li::before{content:"";position:absolute;left:2px;top:24px;width:8px;height:8px;background:var(--cobalt)}
.prose ul li b{color:var(--ink)}
.prose a{color:var(--cobalt-deep);text-underline-offset:3px}
.sources{margin-top:3em;padding:28px;background:var(--mineral);border-top:2px solid var(--cobalt)}
.sources h2{margin:0 0 14px;font-size:1.1rem}
.sources ul{border-top:0;margin-bottom:16px}
.sources ul li{padding:8px 0 8px 22px;border-bottom:0;font-size:.95rem}
.sources ul li::before{top:17px;width:6px;height:6px}
.article-next{display:grid;grid-template-columns:auto minmax(0,1fr);gap:24px;align-items:center;margin-top:44px;padding-top:28px;border-top:1px solid var(--line)}
.next-card{display:flex;flex-direction:column;gap:6px;padding:18px 22px;border:1px solid var(--line-strong);text-decoration:none;color:var(--ink);transition:border-color .25s,background .25s}
.next-card:hover{border-color:var(--cobalt);background:var(--paper);color:var(--ink)}
.next-card .cat{font-family:var(--mono);font-size:.64rem;letter-spacing:.14em;text-transform:uppercase;color:var(--cobalt-deep)}
.next-card b{font-size:1.05rem;line-height:1.35}
.insight-card h3 a{color:var(--ink);text-decoration:none;background:linear-gradient(var(--cobalt),var(--cobalt)) 0 100%/0 1px no-repeat;transition:background-size .35s var(--ease)}
.insight-card h3 a:hover{color:var(--ink);background-size:100% 1px}
.insight-card .meta{margin-top:auto;padding-top:10px}
@media (max-width:640px){.article-next{grid-template-columns:minmax(0,1fr)}.sources{padding:22px 18px}}
/* 24. Approved compact lockup (kit authority) ---------------------------- */
.logo-link .logo-lockup,.site-header.is-compact .logo-link .logo-lockup{width:auto;height:66px;overflow:visible}
.footer-brand .logo-link .logo-lockup{height:66px}
@media (max-width:640px){.logo-link .logo-lockup,.site-header.is-compact .logo-link .logo-lockup{height:54px}}