/* ============================================================
   GEO Decision System™ — shared design system
   Brand: Syne (display) · Fraunces (serif/body) · DM Mono (utility)
   Palette: deep navy #0f172a · gold=entity · teal=proof · purple=method
   ============================================================ */
:root{
  --bg:#0f172a;
  --panel:#131f38;
  --recess:#0b1322;
  --text:#f5f2eb;
  --muted:rgba(245,242,235,.60);
  --faint:rgba(245,242,235,.13);
  --gold:#c9a84c;   /* entity / authority */
  --teal:#52d2a8;   /* proof / citation   */
  --purple:#b89be6; /* method / system    */
  --display:'Syne',sans-serif;
  --serif:'Fraunces',Georgia,serif;
  --mono:'DM Mono',ui-monospace,monospace;
  --edge:clamp(20px,5vw,64px);
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;background:var(--bg);color:var(--text);
  font-family:var(--serif);font-optical-sizing:auto;
  font-weight:400;line-height:1.6;
  -webkit-font-smoothing:antialiased;text-rendering:optimizeLegibility;
  overflow-x:hidden;
}
a{color:inherit}
::selection{background:var(--teal);color:var(--bg)}
.skip{position:absolute;left:-999px;top:0;background:var(--gold);color:var(--bg);padding:10px 16px;z-index:100;font-family:var(--mono);border-radius:0 0 6px 0}
.skip:focus{left:0}
:focus-visible{outline:2px solid var(--teal);outline-offset:3px;border-radius:2px}

.mono{font-family:var(--mono);font-size:.72rem;letter-spacing:.14em;text-transform:uppercase}
.wrap{max-width:1160px;margin:0 auto;padding-inline:var(--edge)}
.narrow{max-width:760px;margin:0 auto;padding-inline:var(--edge)}
.tm{color:var(--gold)}

/* ---------- header ---------- */
header{position:sticky;top:0;z-index:40;background:rgba(15,23,42,.82);backdrop-filter:blur(12px);border-bottom:1px solid var(--faint)}
.bar{display:flex;align-items:center;justify-content:space-between;height:66px}
.brand{font-family:var(--display);font-weight:800;font-size:1.02rem;letter-spacing:-.01em;text-decoration:none;display:flex;align-items:center;gap:.5ch}
.brand .dot{width:9px;height:9px;border-radius:50%;background:var(--gold);display:inline-block;box-shadow:0 0 0 3px rgba(201,168,76,.18)}
nav.top{display:flex;gap:clamp(12px,2.2vw,28px);align-items:center}
nav.top a{font-family:var(--mono);font-size:.74rem;letter-spacing:.08em;text-transform:uppercase;text-decoration:none;color:var(--muted);transition:color .2s}
nav.top a:hover,nav.top a[aria-current=page]{color:var(--text)}
nav.top a.cta{color:var(--bg);background:var(--gold);padding:9px 15px;border-radius:100px;font-weight:500}
nav.top a.cta:hover{background:#dcb95c;color:var(--bg)}
@media(max-width:660px){nav.top a.ghost{display:none}}

/* ---------- breadcrumb ---------- */
.crumb{font-family:var(--mono);font-size:.7rem;letter-spacing:.08em;text-transform:uppercase;color:var(--muted);padding-top:26px}
.crumb a{text-decoration:none;color:var(--muted);transition:color .2s}
.crumb a:hover{color:var(--teal)}
.crumb span{color:var(--faint);margin:0 .6ch}

/* ---------- page hero (subpages) ---------- */
.phero{padding:clamp(30px,6vw,56px) 0 clamp(28px,5vw,48px);border-bottom:1px solid var(--faint)}
.eyebrow{display:inline-flex;align-items:center;gap:.8ch;color:var(--muted);margin-bottom:22px}
.eyebrow .tick{width:26px;height:1px;background:var(--gold)}
.phero h1{font-family:var(--display);font-weight:800;font-size:clamp(2.1rem,5.6vw,3.6rem);line-height:1;letter-spacing:-.025em;margin:0 0 24px;max-width:18ch}
.phero h1 em{font-style:normal;color:var(--gold)}
.lead-wrap{max-width:64ch;position:relative;padding-left:22px}
.lead-wrap::before{content:"";position:absolute;left:0;top:6px;bottom:6px;width:3px;background:var(--teal);border-radius:3px}
.lead-tag{color:var(--teal);margin-bottom:9px;display:flex;align-items:center;gap:.7ch;font-family:var(--mono);font-size:.72rem;letter-spacing:.14em;text-transform:uppercase}
.lead-tag::before{content:"◆";font-size:.6rem}
.lead{font-size:clamp(1.08rem,2vw,1.32rem);line-height:1.5;color:var(--text)}
.lead b{font-weight:500;color:var(--gold)}

/* ---------- home hero ---------- */
.hero{padding-top:clamp(58px,10vw,104px);padding-bottom:clamp(40px,7vw,72px)}
.hero h1{font-family:var(--display);font-weight:800;font-size:clamp(2.5rem,7.4vw,5.1rem);line-height:.98;letter-spacing:-.025em;margin:0 0 30px;max-width:14ch}
.hero h1 em{font-style:normal;color:var(--gold)}
.byline{font-family:var(--mono);font-size:.82rem;color:var(--muted);margin:26px 0 34px}
.byline a{color:var(--text);text-decoration:none;border-bottom:1px solid var(--faint)}
.cta-row{display:flex;flex-wrap:wrap;gap:14px}
.btn{font-family:var(--mono);font-size:.8rem;letter-spacing:.06em;text-transform:uppercase;text-decoration:none;padding:14px 24px;border-radius:100px;transition:transform .18s,background .2s,border-color .2s,color .2s;display:inline-flex;align-items:center;gap:.8ch;cursor:pointer}
.btn:hover{transform:translateY(-2px)}
.btn.solid{background:var(--teal);color:var(--bg);font-weight:500}
.btn.solid:hover{background:#69ddb5}
.btn.line{border:1px solid var(--faint);color:var(--text)}
.btn.line:hover{border-color:var(--gold);color:var(--gold)}

/* ---------- entity graph signature ---------- */
.sig{padding:clamp(30px,5vw,50px) 0 clamp(48px,7vw,84px)}
.sig-head{display:flex;align-items:baseline;justify-content:space-between;gap:20px;flex-wrap:wrap;margin-bottom:24px}
.sig-head .mono{color:var(--purple)}
.sig-head p{margin:0;color:var(--muted);font-size:.96rem;max-width:44ch}
.graph{border:1px solid var(--faint);border-radius:16px;background:linear-gradient(180deg,rgba(255,255,255,.02),transparent 40%),var(--recess);padding:clamp(18px,3vw,30px);position:relative;overflow:hidden}
.graph::before{content:"";position:absolute;inset:0;background:radial-gradient(600px 300px at 80% -10%,rgba(82,210,168,.07),transparent 70%);pointer-events:none}
.graph-topline{display:flex;align-items:center;gap:10px;margin-bottom:22px;color:var(--muted)}
.graph-topline .lamp{width:8px;height:8px;border-radius:50%;background:var(--teal);box-shadow:0 0 10px var(--teal)}
.nodes{display:grid;grid-template-columns:repeat(4,1fr);gap:14px;position:relative}
@media(max-width:760px){.nodes{grid-template-columns:1fr 1fr}}
@media(max-width:420px){.nodes{grid-template-columns:1fr}}
.node{border:1px solid var(--faint);border-radius:12px;padding:16px 15px;background:rgba(255,255,255,.015);position:relative;transition:border-color .25s,transform .25s}
.node:hover{transform:translateY(-3px)}
.node .type{font-family:var(--mono);font-size:.66rem;letter-spacing:.1em;text-transform:uppercase;margin-bottom:9px}
.node .val{font-family:var(--display);font-weight:700;font-size:1.02rem;line-height:1.15;letter-spacing:-.01em}
.node .id{font-family:var(--mono);font-size:.66rem;color:var(--muted);margin-top:8px;word-break:break-all}
.node[data-k=person]{border-color:rgba(201,168,76,.4)} .node[data-k=person] .type{color:var(--gold)}
.node[data-k=org]{border-color:rgba(201,168,76,.28)} .node[data-k=org] .type{color:var(--gold)}
.node[data-k=method]{border-color:rgba(184,155,230,.4)} .node[data-k=method] .type{color:var(--purple)}
.node[data-k=proof]{border-color:rgba(82,210,168,.4)} .node[data-k=proof] .type{color:var(--teal)}
.node:hover[data-k=person]{border-color:var(--gold)}
.node:hover[data-k=method]{border-color:var(--purple)}
.node:hover[data-k=proof]{border-color:var(--teal)}
.edges{display:flex;flex-wrap:wrap;gap:8px;margin-top:20px}
.edge{font-family:var(--mono);font-size:.66rem;letter-spacing:.04em;color:var(--muted);border:1px dashed var(--faint);border-radius:100px;padding:5px 11px}
.edge b{color:var(--text);font-weight:500}

/* ---------- generic section ---------- */
section.blk{padding:clamp(48px,7vw,88px) 0;border-top:1px solid var(--faint)}
.kicker{color:var(--muted);margin-bottom:16px;display:flex;align-items:center;gap:1ch;font-family:var(--mono);font-size:.72rem;letter-spacing:.14em;text-transform:uppercase}
.kicker .n{color:var(--gold)}
h2{font-family:var(--display);font-weight:700;font-size:clamp(1.7rem,4vw,2.7rem);line-height:1.04;letter-spacing:-.02em;margin:0 0 20px;max-width:22ch}
h3{font-family:var(--display);font-weight:700;letter-spacing:-.01em}
.sub{color:var(--muted);max-width:58ch;font-size:1.06rem;margin:0 0 36px}
.more{font-family:var(--mono);font-size:.78rem;letter-spacing:.06em;text-transform:uppercase;text-decoration:none;color:var(--teal);border-bottom:1px solid transparent;transition:border-color .2s}
.more:hover{border-color:var(--teal)}

/* ---------- long-form prose ---------- */
.prose{max-width:68ch}
.prose p{font-size:1.08rem;line-height:1.7;margin:0 0 22px}
.prose p.first::first-letter{}
.prose h2{margin-top:48px}
.prose h3{font-size:1.25rem;margin:36px 0 12px;color:var(--text)}
.prose strong{color:var(--gold);font-weight:500}
.pull{border-left:3px solid var(--teal);padding:4px 0 4px 22px;margin:30px 0;font-size:1.18rem;line-height:1.5;color:var(--text)}
.pull .lead-tag{margin-bottom:10px}

/* ---------- definition list: the 9 layers ---------- */
.layers-dl{border:1px solid var(--faint);border-radius:14px;overflow:hidden;margin:8px 0}
.layers-dl .row{display:grid;grid-template-columns:120px 1fr;gap:0;border-bottom:1px solid var(--faint)}
.layers-dl .row:last-child{border-bottom:0}
.layers-dl .row:hover{background:var(--panel)}
@media(max-width:560px){.layers-dl .row{grid-template-columns:1fr}}
.layers-dl dt{padding:18px 18px;font-family:var(--mono);font-size:.82rem;letter-spacing:.04em;color:var(--purple);border-right:1px solid var(--faint)}
@media(max-width:560px){.layers-dl dt{border-right:0;padding-bottom:0}}
.layers-dl dd{padding:18px 18px;margin:0}
.layers-dl dd b{font-family:var(--display);font-weight:600;color:var(--text);display:block;margin-bottom:5px;letter-spacing:-.01em}
.layers-dl dd span{color:var(--muted);font-size:.96rem;line-height:1.5}

/* ---------- FAQ ---------- */
.faq{border-top:1px solid var(--faint);margin-top:8px}
.faq details{border-bottom:1px solid var(--faint)}
.faq summary{cursor:pointer;list-style:none;padding:20px 2px;font-family:var(--display);font-weight:600;font-size:1.08rem;letter-spacing:-.01em;display:flex;justify-content:space-between;gap:16px;align-items:center}
.faq summary::-webkit-details-marker{display:none}
.faq summary::after{content:"+";font-family:var(--mono);color:var(--teal);font-size:1.3rem;transition:transform .2s}
.faq details[open] summary::after{transform:rotate(45deg)}
.faq .a{padding:0 2px 22px;color:var(--muted);font-size:1.02rem;line-height:1.6;max-width:64ch}

/* ---------- scorecard matrix ---------- */
.matrix-wrap{border:1px solid var(--faint);border-radius:16px;overflow:hidden;background:var(--recess)}
.matrix-top{display:flex;justify-content:space-between;align-items:center;flex-wrap:wrap;gap:10px;padding:14px 18px;border-bottom:1px solid var(--faint);color:var(--muted)}
.matrix-scroll{overflow-x:auto}
table.matrix{width:100%;border-collapse:collapse;min-width:640px;font-size:.9rem}
table.matrix th,table.matrix td{padding:13px 14px;text-align:left;border-bottom:1px solid var(--faint)}
table.matrix thead th{font-family:var(--mono);font-size:.66rem;letter-spacing:.08em;text-transform:uppercase;color:var(--muted);font-weight:400;vertical-align:bottom}
table.matrix tbody th{font-family:var(--serif);font-weight:400;color:var(--text);max-width:220px}
table.matrix tbody th small{display:block;color:var(--muted);font-family:var(--mono);font-size:.66rem;letter-spacing:.03em;margin-top:3px}
table.matrix tr:last-child td,table.matrix tr:last-child th{border-bottom:0}
.cell{font-family:var(--mono);font-size:.66rem;letter-spacing:.06em;text-transform:uppercase;padding:4px 9px;border-radius:100px;display:inline-block;white-space:nowrap}
.c-yes{color:var(--teal);border:1px solid rgba(82,210,168,.4);background:rgba(82,210,168,.08)}
.c-no{color:var(--gold);border:1px solid rgba(201,168,76,.35);background:rgba(201,168,76,.06)}
.c-pend{color:var(--muted);border:1px solid var(--faint)}

/* ---------- tiers ---------- */
.tiers{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}
@media(max-width:800px){.tiers{grid-template-columns:1fr}}
.tier{border:1px solid var(--faint);border-radius:16px;padding:26px 22px;background:var(--panel);position:relative;display:flex;flex-direction:column}
.tier.feature{border-color:rgba(201,168,76,.5);background:linear-gradient(180deg,rgba(201,168,76,.06),transparent 60%),var(--panel)}
.tier .tg{font-family:var(--mono);font-size:.7rem;letter-spacing:.1em;text-transform:uppercase;color:var(--muted)}
.tier.feature .tg{color:var(--gold)}
.tier h3{font-size:1.35rem;margin:12px 0 4px}
.tier .price{font-family:var(--mono);font-size:.9rem;color:var(--teal);margin-bottom:12px}
.tier .role{color:var(--muted);font-size:.92rem;margin-bottom:16px}
.tier ul{list-style:none;padding:0;margin:0 0 16px}
.tier li{font-size:.96rem;color:var(--text);padding:7px 0 7px 22px;position:relative;line-height:1.4}
.tier li::before{content:"→";position:absolute;left:0;color:var(--teal);font-family:var(--mono)}
.tier .fn{font-family:var(--serif);font-size:.98rem;line-height:1.5;color:var(--muted);border-top:1px solid var(--faint);padding-top:16px;margin-top:auto}

/* ---------- layers preview grid (home) ---------- */
.layers{display:grid;grid-template-columns:repeat(3,1fr);gap:1px;background:var(--faint);border:1px solid var(--faint);border-radius:14px;overflow:hidden}
@media(max-width:720px){.layers{grid-template-columns:1fr 1fr}}
@media(max-width:440px){.layers{grid-template-columns:1fr}}
.lyr{background:var(--bg);padding:20px 18px;transition:background .2s}
.lyr:hover{background:var(--panel)}
.lyr .lv{font-family:var(--mono);font-size:.72rem;color:var(--purple);letter-spacing:.06em}
.lyr .nm{font-family:var(--display);font-weight:600;font-size:1.02rem;margin-top:8px;letter-spacing:-.01em}
.lyr .ds{color:var(--muted);font-size:.9rem;margin-top:7px;line-height:1.45}

/* ---------- proof split (home) ---------- */
.proof-grid{display:grid;grid-template-columns:1.1fr .9fr;gap:clamp(24px,4vw,52px);align-items:center}
@media(max-width:800px){.proof-grid{grid-template-columns:1fr}}
.scorecard{border:1px solid var(--faint);border-radius:16px;background:var(--recess);overflow:hidden}
.scorecard .sc-top{display:flex;justify-content:space-between;align-items:center;padding:14px 18px;border-bottom:1px solid var(--faint);color:var(--muted)}
.sc-row{display:flex;justify-content:space-between;align-items:center;padding:13px 18px;border-bottom:1px solid var(--faint);font-size:.94rem}
.sc-row:last-child{border-bottom:0}
.sc-row .eng{font-family:var(--mono);font-size:.82rem;letter-spacing:.03em}
.sc-state{font-family:var(--mono);font-size:.7rem;letter-spacing:.08em;text-transform:uppercase;padding:4px 10px;border-radius:100px}
.st-no{color:var(--muted);border:1px solid var(--faint)}
.st-yes{color:var(--teal);border:1px solid rgba(82,210,168,.4);background:rgba(82,210,168,.08)}

/* ---------- CTA band ---------- */
.band{border:1px solid var(--faint);border-radius:18px;background:linear-gradient(180deg,rgba(201,168,76,.05),transparent),var(--panel);padding:clamp(30px,5vw,52px);text-align:center;margin-top:20px}
.band h2{margin:0 auto 16px}
.band .sub{margin:0 auto 28px}

/* ---------- footer ---------- */
footer{border-top:1px solid var(--faint);padding:clamp(48px,7vw,80px) 0 44px;background:var(--recess)}
.foot-def{max-width:70ch;font-family:var(--serif);font-size:clamp(1.05rem,2vw,1.28rem);line-height:1.55;margin:0 0 40px}
.foot-def b{color:var(--gold);font-weight:500}
.foot-grid{display:flex;justify-content:space-between;gap:30px;flex-wrap:wrap;align-items:flex-end}
.foot-links{display:flex;gap:20px;flex-wrap:wrap}
.foot-links a{font-family:var(--mono);font-size:.76rem;letter-spacing:.06em;text-transform:uppercase;text-decoration:none;color:var(--muted);transition:color .2s}
.foot-links a:hover{color:var(--teal)}
.foot-meta{font-family:var(--mono);font-size:.72rem;color:var(--muted);line-height:1.7}
.foot-meta .tm{color:var(--gold)}

@media(prefers-reduced-motion:no-preference){
  .fade{opacity:0;transform:translateY(14px);animation:up .7s cubic-bezier(.2,.7,.2,1) forwards}
  .d1{animation-delay:.05s}.d2{animation-delay:.15s}.d3{animation-delay:.25s}.d4{animation-delay:.35s}.d5{animation-delay:.45s}.d6{animation-delay:.55s}
  @keyframes up{to{opacity:1;transform:none}}
}