/* =============================================================
   Auctus Agri — Design System
   Voice register: Foreign Affairs, FT, McKinsey Quarterly.
   Direction A: ink + terracotta. Serif-led. No icons.
   ============================================================= */

/* -------- Tokens -------- */
:root {
  --ink:     #111418;
  --paper:   #FAFAF7;
  --grey:    #6A6660;
  --grey-2:  #B6B1A8;
  --rule:    #D9D4C9;
  --accent:  #8B3A2E;
  --accent-2:#6E2A1F;
  --surface: #E8E2D7;

  --serif: 'Source Serif 4', 'Source Serif Pro', Georgia, 'Times New Roman', serif;
  --sans:  'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Helvetica, Arial, sans-serif;

  --measure: 68ch;
  --measure-tight: 56ch;
  --gutter: clamp(20px, 4vw, 56px);
  --section-y: clamp(64px, 9vw, 128px);

  --image-grade: saturate(0.85) contrast(1.05) brightness(0.97);
}

/* -------- Reset / base -------- */
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;text-rendering:optimizeLegibility}
body{
  margin:0;
  background:var(--paper);
  color:var(--ink);
  font-family:var(--serif);
  font-size:18px;
  line-height:1.6;
  font-feature-settings:"kern" 1, "liga" 1, "onum" 1;
  -webkit-font-smoothing:antialiased;
  -moz-osx-font-smoothing:grayscale;
}
img,picture,video{display:block;max-width:100%;height:auto}
a{color:inherit;text-decoration:none}
button{font:inherit;cursor:pointer}
hr{border:0;border-top:1px solid var(--rule);margin:48px 0}

/* -------- Typography styles -------- */
.h1, h1{
  font-family:var(--serif);
  font-weight:400;
  font-size:clamp(40px, 5.6vw, 76px);
  line-height:1.06;
  letter-spacing:-0.012em;
  margin:0 0 0.4em;
}
.h2, h2{
  font-family:var(--serif);
  font-weight:400;
  font-size:clamp(30px, 3.6vw, 46px);
  line-height:1.12;
  letter-spacing:-0.008em;
  margin:0 0 0.5em;
}
.h3, h3{
  font-family:var(--serif);
  font-weight:500;
  font-size:clamp(22px, 2.1vw, 28px);
  line-height:1.2;
  margin:0 0 0.5em;
}
.h4, h4{
  font-family:var(--serif);
  font-weight:500;
  font-size:20px;
  line-height:1.3;
  margin:0 0 0.5em;
}
p{margin:0 0 1.1em;max-width:var(--measure)}
.lead{
  font-size:clamp(20px, 1.6vw, 22px);
  line-height:1.55;
  color:var(--ink);
}
.eyebrow{
  font-family:var(--sans);
  font-weight:500;
  font-size:12px;
  letter-spacing:0.14em;
  text-transform:uppercase;
  color:var(--grey);
  margin:0 0 18px;
}
.eyebrow--accent{color:var(--accent)}
.meta{
  font-family:var(--sans);
  font-size:13px;
  color:var(--grey);
  letter-spacing:0.01em;
}

a.inline, .prose a{
  color:var(--ink);
  border-bottom:1px solid var(--accent);
  padding-bottom:1px;
  transition:color .15s ease;
}
a.inline:hover, .prose a:hover{color:var(--accent)}

::selection{background:var(--accent);color:var(--paper)}

/* -------- Layout primitives -------- */
.container{
  width:100%;
  max-width:1240px;
  margin:0 auto;
  padding:0 var(--gutter);
}
.container--narrow{max-width:880px}
.section{padding:var(--section-y) 0}
.section--tight{padding:calc(var(--section-y) * 0.6) 0}
.section--surface{background:var(--surface)}
.section--ink{background:var(--ink);color:var(--paper)}
.section--ink .eyebrow{color:rgba(250,250,247,.6)}
.section--ink a.inline{color:var(--paper);border-color:var(--paper)}

.grid{display:grid;gap:48px}
.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--sidebar{grid-template-columns:minmax(0, 240px) minmax(0, 1fr);gap:64px}
.grid--aside{grid-template-columns:minmax(0, 1fr) minmax(0, 1.6fr);gap:64px}

@media (max-width: 880px){
  .grid--2,.grid--3,.grid--4,.grid--sidebar,.grid--aside{grid-template-columns:1fr;gap:36px}
}

/* -------- Header / nav -------- */
.site-header{
  position:sticky;top:0;z-index:50;
  background:rgba(250,250,247,0.86);
  backdrop-filter:saturate(140%) blur(10px);
  -webkit-backdrop-filter:saturate(140%) blur(10px);
  border-bottom:1px solid var(--rule);
}
.site-header__inner{
  display:flex;align-items:center;justify-content:space-between;
  padding:18px var(--gutter);
}
.brand{display:inline-flex;align-items:baseline;gap:10px;text-decoration:none;color:var(--ink)}
.brand__mark{
  font-family:var(--serif);
  font-weight:500;
  font-size:22px;
  letter-spacing:0.18em;
}
.brand__sub{
  font-family:var(--serif);
  font-style:italic;
  font-weight:400;
  font-size:14px;
  color:var(--grey);
  letter-spacing:0.02em;
}
.nav{display:flex;gap:28px;align-items:center}
.nav a{
  font-family:var(--sans);
  font-size:14px;
  color:var(--ink);
  letter-spacing:0.01em;
  padding:6px 2px;
  border-bottom:1px solid transparent;
  transition:border-color .15s ease;
}
.nav a:hover, .nav a[aria-current="page"]{border-bottom-color:var(--accent)}
.nav-toggle{display:none;border:0;background:none;color:var(--ink);font-family:var(--sans);font-size:13px;letter-spacing:.1em;text-transform:uppercase}
@media (max-width: 760px){
  .nav{display:none}
  .nav-toggle{display:inline-block}
  .nav.is-open{
    display:flex;flex-direction:column;align-items:flex-start;gap:16px;
    position:absolute;top:64px;left:0;right:0;
    background:var(--paper);
    padding:20px var(--gutter) 28px;
    border-bottom:1px solid var(--rule);
  }
}

/* -------- Buttons -------- */
.btn{
  display:inline-flex;align-items:center;gap:10px;
  font-family:var(--sans);
  font-size:14px;
  letter-spacing:0.04em;
  padding:14px 22px;
  border:1px solid var(--ink);
  background:var(--ink);
  color:var(--paper);
  border-radius:0;
  transition:background .15s ease, color .15s ease, border-color .15s ease;
}
.btn:hover{background:var(--accent);border-color:var(--accent)}
.btn--accent{background:var(--accent);border-color:var(--accent)}
.btn--accent:hover{background:var(--accent-2);border-color:var(--accent-2)}
.btn--ghost{background:transparent;color:var(--ink)}
.btn--ghost:hover{background:var(--ink);color:var(--paper)}
.btn--reverse{background:transparent;border-color:var(--paper);color:var(--paper)}
.btn--reverse:hover{background:var(--paper);color:var(--ink)}
.btn .arrow{display:inline-block;transition:transform .2s ease}
.btn:hover .arrow{transform:translateX(3px)}

.link{
  display:inline-flex;align-items:center;gap:8px;
  font-family:var(--sans);
  font-size:14px;
  color:var(--ink);
  letter-spacing:0.01em;
  padding-bottom:3px;
  border-bottom:1px solid var(--ink);
  transition:color .15s ease, border-color .15s ease;
}
.link:hover{color:var(--accent);border-color:var(--accent)}
.link--ink{color:var(--paper);border-color:var(--paper)}
.link--ink:hover{color:var(--surface);border-color:var(--surface)}

/* -------- Hero -------- */
.hero{
  position:relative;
  min-height:clamp(420px, 64vh, 720px);
  display:flex;align-items:flex-end;
  color:var(--paper);
  overflow:hidden;
  isolation:isolate;
}
.hero__media{position:absolute;inset:0;z-index:-1}
.hero__media img{width:100%;height:100%;object-fit:cover;filter:var(--image-grade)}
.hero__media::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(180deg,
    rgba(17,20,24,0.20) 0%,
    rgba(17,20,24,0.45) 55%,
    rgba(17,20,24,0.72) 100%);
}
.hero__inner{
  width:100%;
  padding:0 var(--gutter) clamp(48px,7vw,96px);
  max-width:1240px;
  margin:0 auto;
}
.hero h1{max-width:18ch;color:var(--paper)}
.hero .lead{max-width:48ch;color:rgba(250,250,247,.92)}
.hero .actions{display:flex;flex-wrap:wrap;gap:16px;margin-top:36px}

.hero--quiet{
  min-height:auto;
  color:var(--ink);
  padding:calc(var(--section-y)*0.8) 0 calc(var(--section-y)*0.4);
  background:var(--paper);
  display:block;
}
.hero--quiet .container{padding-top:0;padding-bottom:0}
.hero--quiet h1{color:var(--ink)}
.hero--quiet .lead{color:var(--grey)}

/* -------- Reusable blocks -------- */
.prose{max-width:var(--measure)}
.prose p, .prose ul, .prose ol, .prose blockquote{max-width:var(--measure)}
.prose blockquote{
  margin:32px 0;
  padding:0 0 0 24px;
  border-left:2px solid var(--accent);
  font-style:italic;
  color:var(--grey);
}
.prose ul, .prose ol{padding-left:1.2em;margin-bottom:1.2em}
.prose li{margin-bottom:0.4em}

.tile{
  padding:36px 32px;
  background:var(--paper);
  border:1px solid var(--rule);
  display:flex;flex-direction:column;
  height:100%;
  transition:border-color .15s ease, transform .2s ease;
}
.tile:hover{border-color:var(--ink);transform:translateY(-2px)}
.tile h3{margin-bottom:14px}
.tile p{color:var(--grey);font-size:17px;line-height:1.55}
.tile .link{margin-top:auto;padding-top:18px}

.tile--dark{background:var(--ink);color:var(--paper);border-color:var(--ink)}
.tile--dark p{color:rgba(250,250,247,0.78)}

.cred-strip{
  font-family:var(--sans);
  font-size:14px;
  color:var(--ink);
  letter-spacing:0.01em;
  line-height:1.9;
}
.cred-strip span{display:inline-block;padding:0 14px;border-right:1px solid var(--rule)}
.cred-strip span:last-child{border-right:0}
@media (max-width: 760px){
  .cred-strip span{display:block;padding:4px 0;border-right:0;border-bottom:1px solid var(--rule)}
  .cred-strip span:last-child{border-bottom:0}
}

/* -------- Capability matrix -------- */
.matrix{width:100%;border-collapse:collapse;font-family:var(--sans);font-size:15px}
.matrix th{
  text-align:left;
  font-weight:500;
  letter-spacing:0.04em;
  text-transform:uppercase;
  font-size:12px;
  color:var(--grey);
  padding:14px 16px 14px 0;
  border-bottom:1px solid var(--ink);
}
.matrix td{
  padding:16px 16px 16px 0;
  border-bottom:1px solid var(--rule);
  vertical-align:top;
}
.matrix td:first-child{font-family:var(--serif);font-size:17px}
.depth{
  display:inline-block;
  font-family:var(--sans);
  font-size:11px;
  letter-spacing:0.12em;
  text-transform:uppercase;
  padding:4px 10px;
  border:1px solid;
}
.depth--lead{background:var(--accent);color:var(--paper);border-color:var(--accent)}
.depth--direct{background:transparent;color:var(--ink);border-color:var(--ink)}
.depth--familiar{background:transparent;color:var(--grey);border-color:var(--grey-2)}
@media (max-width: 760px){
  .matrix, .matrix tbody, .matrix tr, .matrix td, .matrix th{display:block;width:100%}
  .matrix thead{display:none}
  .matrix tr{
    border-bottom:1px solid var(--rule);
    padding:18px 0;
  }
  .matrix td{
    border:0;padding:4px 0;
  }
  .matrix td:first-child{font-size:19px;margin-bottom:6px}
}

/* -------- Form -------- */
.form{
  display:grid;gap:18px;
  max-width:560px;
}
.field{
  display:grid;gap:6px;
}
.field label{
  font-family:var(--sans);
  font-size:13px;letter-spacing:0.04em;
  color:var(--grey);
  text-transform:uppercase;
}
.field input, .field select, .field textarea{
  font-family:var(--serif);
  font-size:17px;
  color:var(--ink);
  background:var(--paper);
  border:1px solid var(--rule);
  border-bottom:1px solid var(--ink);
  padding:12px 14px;
  border-radius:0;
  width:100%;
  transition:border-color .15s ease;
}
.field input:focus, .field select:focus, .field textarea:focus{
  outline:none;border-color:var(--accent);
}
.field textarea{min-height:140px;resize:vertical}
.form .submit{margin-top:8px;justify-self:start}
.form-note{font-family:var(--sans);font-size:13px;color:var(--grey);margin-top:6px;max-width:560px}

.section--accent{background:var(--accent);color:var(--paper)}
.section--accent .eyebrow{color:rgba(250,250,247,.65)}
.section--accent .field input,
.section--accent .field select{
  background:rgba(255,255,255,0.08);
  border-color:rgba(255,255,255,0.4);
  border-bottom-color:var(--paper);
  color:var(--paper);
}
.section--accent .field label{color:rgba(250,250,247,0.78)}
.section--accent .form-note{color:rgba(250,250,247,0.78)}

/* -------- Card list (insights) -------- */
.cardlist{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:32px}
@media (max-width: 880px){.cardlist{grid-template-columns:1fr}}
.card{
  display:flex;flex-direction:column;
  padding-top:24px;
  border-top:1px solid var(--ink);
  height:100%;
}
.card .meta{margin-bottom:10px}
.card h3{margin-bottom:8px}
.card p{color:var(--grey);font-size:17px;flex:1}
.card .link{align-self:flex-start;margin-top:12px}

/* -------- Article body -------- */
.article-hero{padding:120px 0 64px}
.article-hero .container{padding-top:0;padding-bottom:0}
.article-hero .meta{margin-bottom:20px}
.article-hero h1{max-width:22ch}
.article-hero .lead{color:var(--grey);max-width:60ch;margin-top:14px}
.article-body{
  max-width:680px;
  margin:0 auto;
  padding:0 var(--gutter) var(--section-y);
}
.article-body h2{margin-top:48px}
.article-body h3{margin-top:36px}
.article-body p, .article-body ul, .article-body ol{font-size:19px;line-height:1.7}
.article-body em.editor{
  display:block;
  font-size:14px;
  color:var(--grey);
  font-style:italic;
  margin:24px 0;
  padding-left:14px;
  border-left:2px solid var(--rule);
}
.article-footer{
  max-width:680px;margin:0 auto;
  padding:32px var(--gutter) 0;
  border-top:1px solid var(--rule);
  font-size:16px;color:var(--grey);
}

/* -------- Footer -------- */
.site-footer{
  background:var(--ink);color:var(--paper);
  padding:80px 0 32px;
}
.site-footer h4{
  font-family:var(--sans);
  font-size:12px;letter-spacing:0.14em;
  text-transform:uppercase;
  color:rgba(250,250,247,.55);
  font-weight:500;
  margin:0 0 18px;
}
.site-footer p, .site-footer a, .site-footer li{
  color:rgba(250,250,247,.85);
  font-family:var(--sans);
  font-size:14px;
  line-height:1.7;
}
.site-footer ul{list-style:none;padding:0;margin:0}
.site-footer a:hover{color:var(--paper);text-decoration:underline}
.site-footer .disclaim{
  font-style:italic;
  color:rgba(250,250,247,0.7);
  font-size:13px;
  line-height:1.6;
}
.site-footer__bottom{
  border-top:1px solid rgba(250,250,247,0.14);
  margin-top:60px;padding-top:24px;
  display:flex;flex-wrap:wrap;justify-content:space-between;gap:18px;
  font-family:var(--sans);font-size:12px;letter-spacing:0.02em;
  color:rgba(250,250,247,0.55);
}

/* -------- Utility -------- */
.stack > * + *{margin-top:24px}
.stack-lg > * + *{margin-top:40px}
.muted{color:var(--grey)}
.center{text-align:center}
.rule-top{border-top:1px solid var(--rule);padding-top:36px}
.hide-mobile{}
@media (max-width: 760px){.hide-mobile{display:none}}

/* -------- Accessibility -------- */
:focus-visible{outline:2px solid var(--accent);outline-offset:3px}
@media (prefers-reduced-motion: reduce){
  *{animation:none !important;transition:none !important}
}

/* =============================================================
   RESEARCH-PAPER ARTICLE LAYOUT
   A4-feel paper on a dark canvas, two-column body, highlights,
   callouts, stat patches, figure-in-body. Used for Augere
   long-form pieces.
   ============================================================= */

.paper-stage{
  background: linear-gradient(180deg, #0A0C0F 0%, #14171B 100%);
  padding: clamp(40px, 6vw, 88px) 16px clamp(56px, 7vw, 96px);
}

.paper{
  position:relative;
  max-width: 920px;          /* close to A4 width on screen at default zoom */
  margin: 0 auto;
  background: #FBFAF5;
  color: var(--ink);
  padding: clamp(40px, 6vw, 80px) clamp(28px, 5vw, 72px);
  box-shadow:
    0 1px 0 rgba(255,255,255,0.04),
    0 30px 60px rgba(0,0,0,0.45),
    0 12px 24px rgba(0,0,0,0.28);
  font-family: var(--serif);
}
/* very subtle paper warming */
.paper::before{
  content:"";
  position:absolute;inset:0;
  pointer-events:none;
  background: radial-gradient(ellipse at top, rgba(0,0,0,0.05), transparent 65%);
  mix-blend-mode: multiply;
}
.paper > *{position:relative;z-index:1}

/* Masthead row */
.paper-mast{
  display:flex;justify-content:space-between;align-items:baseline;flex-wrap:wrap;gap:12px;
  font-family:var(--sans);
  font-size:11px;letter-spacing:0.18em;text-transform:uppercase;
  color:var(--grey);
  padding-bottom:14px;border-bottom:1px solid var(--ink);
  margin-bottom:32px;
}
.paper-mast .id{color:var(--accent);font-weight:600}

.paper-meta{
  font-family:var(--sans);
  font-size:12px;letter-spacing:0.08em;
  color:var(--grey);
  margin:0 0 18px;
}

.paper h1.paper-title{
  font-family:var(--serif);
  font-weight:500;
  font-size:clamp(30px, 4.2vw, 50px);
  line-height:1.08;
  letter-spacing:-0.012em;
  margin:0 0 16px;
  max-width:30ch;
  color:var(--ink);
}
.paper-dek{
  font-family:var(--serif);
  font-style:italic;
  font-size:clamp(17px, 1.7vw, 21px);
  line-height:1.45;
  color:var(--grey);
  margin:0 0 28px;
  max-width:62ch;
}

.paper-authors{
  font-family:var(--sans);
  font-size:13px;
  color:var(--ink);
  margin:0 0 6px;
}
.paper-keywords{
  font-family:var(--sans);
  font-size:12px;
  letter-spacing:0.02em;
  color:var(--grey);
  margin:6px 0 32px;
  max-width:none;
}
.paper-keywords strong{
  font-weight:600;color:var(--ink);
  text-transform:uppercase;letter-spacing:0.12em;
  font-size:10.5px;margin-right:10px;
}

/* Abstract block */
.abstract{
  background:var(--surface);
  border-left:4px solid var(--accent);
  padding:22px 26px;
  margin:0 0 36px;
}
.abstract__label{
  font-family:var(--sans);
  font-size:11px;
  letter-spacing:0.2em;
  text-transform:uppercase;
  color:var(--accent);
  margin:0 0 10px;
  font-weight:600;
}
.abstract p{
  margin:0;font-size:16.5px;line-height:1.55;
  color:var(--ink);max-width:none;
}

/* Two-column body */
.paper-body{
  column-count:2;
  column-gap:40px;
  column-rule: 1px solid rgba(17,20,24,0.08);
  font-size:15.5px;
  line-height:1.62;
  text-align:justify;
  hyphens:auto;
  -webkit-hyphens:auto;
  color:var(--ink);
}
.paper-body > *{max-width:none}
.paper-body p{margin:0 0 0.95em}

/* Drop cap on opening paragraph */
.paper-body p:first-of-type::first-letter{
  font-family:var(--serif);
  font-weight:500;
  font-size:4.2em;
  line-height:0.85;
  float:left;
  padding:6px 10px 0 0;
  color:var(--accent);
}

.paper-body h2{
  font-family:var(--serif);
  font-weight:500;
  font-size:19px;
  line-height:1.25;
  margin:1.4em 0 0.5em;
  break-after:avoid;
  color:var(--ink);
}
.paper-body h2::before{
  content: attr(data-num) ".";
  display:inline-block;
  margin-right:8px;
  color:var(--accent);
  font-family:var(--sans);
  font-weight:600;
  font-size:13px;
  letter-spacing:0.04em;
  vertical-align:2px;
}
.paper-body h3{
  font-family:var(--sans);
  font-weight:600;
  font-size:12px;
  letter-spacing:0.1em;
  text-transform:uppercase;
  color:var(--ink);
  margin:1.4em 0 0.4em;
  break-after:avoid;
}

/* Highlighter-pen marks */
.paper mark.hi{
  background: linear-gradient(180deg,
    transparent 0%, transparent 55%,
    rgba(139,58,46,0.32) 55%, rgba(139,58,46,0.32) 94%,
    transparent 94%);
  padding: 0 1px;
  color:inherit;
}
.paper mark.hi--ink{
  background: linear-gradient(180deg,
    transparent 0%, transparent 55%,
    rgba(17,20,24,0.20) 55%, rgba(17,20,24,0.20) 94%,
    transparent 94%);
}
.paper mark.hi--ochre{
  background: linear-gradient(180deg,
    transparent 0%, transparent 55%,
    rgba(207,165,86,0.45) 55%, rgba(207,165,86,0.45) 94%,
    transparent 94%);
}

/* Callouts that flow inside columns */
.callout{
  background:var(--surface);
  border-left:3px solid var(--accent);
  padding:16px 18px;
  margin:1.2em 0;
  break-inside:avoid;
  font-size:14.5px;
  line-height:1.55;
  text-align:left;
  hyphens:none;
}
.callout__label{
  font-family:var(--sans);
  font-size:10.5px;
  letter-spacing:0.2em;
  text-transform:uppercase;
  color:var(--accent);
  margin:0 0 8px;
  font-weight:600;
}
.callout p{margin:0 0 0.5em;color:var(--ink)}
.callout p:last-child{margin-bottom:0}
.callout--ink{
  background:var(--ink);color:var(--paper);
  border-left-color:var(--accent);
}
.callout--ink .callout__label{color:var(--accent)}
.callout--ink p{color:var(--paper)}
.callout--accent{
  background:var(--accent);color:var(--paper);
  border-left:0;
}
.callout--accent .callout__label{color:rgba(250,250,247,0.72)}
.callout--accent p{color:var(--paper)}

/* Big-stat patch */
.stat-patch{
  background:var(--accent);color:var(--paper);
  padding:22px 22px 18px;
  margin:1.3em 0;
  break-inside:avoid;
  text-align:left;
  hyphens:none;
}
.stat-patch .num{
  font-family:var(--serif);
  font-weight:500;
  font-size:clamp(40px, 4.2vw, 56px);
  line-height:1;
  letter-spacing:-0.01em;
  display:block;
  margin-bottom:8px;
}
.stat-patch .lbl{
  font-family:var(--sans);
  font-size:11px;
  letter-spacing:0.14em;
  text-transform:uppercase;
  color:rgba(250,250,247,0.82);
  line-height:1.45;
}
.stat-patch--ink{background:var(--ink)}

/* Figure inside body */
.paper-figure{
  column-span:all;
  margin:36px 0;
  break-inside:avoid;
  text-align:center;
}
.paper-figure img{
  width:100%;display:block;
  filter:var(--image-grade);
  border:1px solid rgba(17,20,24,0.12);
}
.paper-figure figcaption{
  font-family:var(--sans);
  font-size:12px;
  color:var(--grey);
  letter-spacing:0.02em;
  margin-top:10px;
  text-align:left;
  max-width:80ch;
}
.paper-figure figcaption strong{
  color:var(--ink);
  text-transform:uppercase;
  letter-spacing:0.1em;
  font-size:11px;
  font-weight:600;
  margin-right:6px;
}

/* Editor note marginalia */
.paper-body em.editor{
  display:block;
  background:rgba(139,58,46,0.08);
  border-left:2px dashed var(--accent);
  padding:10px 14px;
  font-size:12.5px;
  font-style:italic;
  color:var(--grey);
  margin:1.2em 0;
  break-inside:avoid;
  hyphens:none;
}

/* Paper footer */
.paper-foot{
  margin-top:44px;
  padding-top:24px;
  border-top:1px solid var(--ink);
  font-family:var(--serif);
  font-size:14.5px;
  line-height:1.6;
}
.paper-foot p{margin:0 0 1em;max-width:none;color:var(--grey)}
.paper-citation{
  font-family:var(--sans);
  font-size:12px;
  line-height:1.55;
  color:var(--grey);
  border-left:2px solid var(--accent);
  padding:6px 12px;
  margin:0 0 20px;
}
.paper-citation strong{color:var(--ink);text-transform:uppercase;letter-spacing:0.08em;font-size:11px;font-weight:600;margin-right:4px}

/* Mobile collapse */
@media (max-width: 760px){
  .paper-body{column-count:1;text-align:left;hyphens:none}
  .paper-stage{padding:24px 8px}
  .paper{padding:32px 22px}
  .paper h1.paper-title{font-size:30px}
  .paper-body p:first-of-type::first-letter{font-size:3.2em}
  .stat-patch .num{font-size:38px}
}

/* ============================================================
   PDF DOWNLOAD — gate form + modal
   ============================================================ */

/* Foot-of-paper download action row */
.paper-foot__actions{
  display:flex;flex-wrap:wrap;gap:14px;align-items:center;
  margin:0 0 26px;
  padding-bottom:24px;
  border-bottom:1px dashed var(--rule);
}
.pdf-trigger{
  display:inline-flex;align-items:center;gap:10px;
  font-family:var(--sans);
  font-size:13px;letter-spacing:0.05em;
  color:var(--ink);
  border:1px solid var(--ink);
  background:transparent;
  padding:11px 20px;
  cursor:pointer;
  transition:background .15s ease,color .15s ease,border-color .15s ease;
}
.pdf-trigger:hover{background:var(--ink);color:var(--paper)}
.pdf-trigger__icon{
  display:inline-block;
  font-size:15px;
  line-height:1;
}
.paper-foot__actions .meta{margin:0;color:var(--grey)}

/* Modal */
.pdf-modal{
  position:fixed;inset:0;z-index:100;
  display:none;
  align-items:center;justify-content:center;
  padding:24px;
}
.pdf-modal.is-open{display:flex;animation:pdfFadeIn .18s ease-out}
@keyframes pdfFadeIn{
  from{opacity:0}
  to{opacity:1}
}
.pdf-modal__overlay{
  position:absolute;inset:0;
  background:rgba(10,12,15,0.78);
  backdrop-filter:blur(4px);
  -webkit-backdrop-filter:blur(4px);
  cursor:pointer;
}
.pdf-modal__card{
  position:relative;
  background:var(--paper);
  max-width:500px;width:100%;
  padding:40px 40px 36px;
  box-shadow:0 30px 60px rgba(0,0,0,0.45), 0 12px 24px rgba(0,0,0,0.28);
  font-family:var(--serif);
  color:var(--ink);
  max-height:90vh;
  overflow-y:auto;
}
.pdf-modal__close{
  position:absolute;top:14px;right:14px;
  background:none;border:0;cursor:pointer;
  font-family:var(--sans);font-size:13px;letter-spacing:0.06em;
  color:var(--grey);
  padding:8px 10px;
  transition:color .15s ease;
}
.pdf-modal__close:hover{color:var(--accent)}
.pdf-modal__label{
  font-family:var(--sans);font-size:11px;letter-spacing:0.18em;
  text-transform:uppercase;color:var(--accent);
  margin:0 0 10px;font-weight:600;
}
.pdf-modal h3{
  font-family:var(--serif);font-weight:500;
  font-size:28px;line-height:1.15;margin:0 0 12px;
  letter-spacing:-0.008em;
}
.pdf-modal .intro{
  font-size:15px;color:var(--grey);
  margin:0 0 26px;line-height:1.55;
  max-width:none;
}
.pdf-modal .form{
  display:grid;gap:14px;max-width:none;
}
.pdf-modal .field{display:grid;gap:5px}
.pdf-modal .field label{
  font-family:var(--sans);font-size:11px;letter-spacing:0.06em;
  text-transform:uppercase;color:var(--grey);
}
.pdf-modal .field input,
.pdf-modal .field select{
  font-family:var(--serif);font-size:16px;
  background:var(--paper);
  border:1px solid var(--rule);
  border-bottom:1px solid var(--ink);
  padding:11px 12px;
  width:100%;color:var(--ink);
}
.pdf-modal .field input:focus,
.pdf-modal .field select:focus{outline:none;border-color:var(--accent)}
.pdf-modal__note{
  font-family:var(--sans);font-size:12px;
  color:var(--grey);margin:6px 0 0;line-height:1.5;
}
.pdf-modal .submit{
  margin-top:10px;justify-self:start;
}
.pdf-modal__success{text-align:center;padding:10px 0}
.pdf-modal__success .pdf-modal__label{color:var(--accent)}
.pdf-modal__success h3{margin-bottom:10px}
.pdf-modal__success p{color:var(--grey);font-size:15px;margin:0 auto 22px;max-width:34ch}
.pdf-modal__success .check{
  font-family:var(--serif);
  font-size:48px;line-height:1;color:var(--accent);
  margin-bottom:6px;
}

/* =============================================================
   AUCTUS AI — flagship section + dedicated page
   Visually distinct treatment: deep ink with terracotta accents,
   subtle grid pattern, large display typography.
   ============================================================= */

.section-ai{
  position:relative;
  background:
    radial-gradient(ellipse at top right, rgba(139,58,46,0.10), transparent 55%),
    linear-gradient(180deg, #0A0C0F 0%, #14171B 100%);
  color:var(--paper);
  padding:clamp(72px, 9vw, 128px) 0;
  overflow:hidden;
  isolation:isolate;
}
/* faint computational grid */
.section-ai::before{
  content:"";
  position:absolute;inset:0;z-index:-1;
  background-image:
    linear-gradient(to right, rgba(255,255,255,0.04) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(255,255,255,0.04) 1px, transparent 1px);
  background-size:40px 40px;
  mask-image: radial-gradient(ellipse at center, black 30%, transparent 75%);
  -webkit-mask-image: radial-gradient(ellipse at center, black 30%, transparent 75%);
  opacity:0.6;
}

.ai-grid{
  display:grid;
  grid-template-columns: minmax(0, 1.05fr) minmax(0, 1fr);
  gap:64px;
  align-items:start;
}
@media (max-width: 980px){
  .ai-grid{grid-template-columns:1fr;gap:44px}
}

.ai-eyebrow{
  font-family:var(--sans);
  font-size:12px;
  letter-spacing:0.18em;
  text-transform:uppercase;
  color:var(--accent);
  margin:0 0 24px;
  display:inline-flex;align-items:center;gap:10px;
}
.ai-eyebrow::before{
  content:"";
  width:8px;height:8px;border-radius:50%;
  background:var(--accent);
  box-shadow:0 0 0 4px rgba(139,58,46,0.22);
  animation: ai-pulse 2.4s ease-in-out infinite;
}
@keyframes ai-pulse{
  0%,100%{box-shadow:0 0 0 4px rgba(139,58,46,0.18)}
  50%{box-shadow:0 0 0 8px rgba(139,58,46,0.05)}
}
@media (prefers-reduced-motion: reduce){
  .ai-eyebrow::before{animation:none}
}

.ai-headline{
  font-family:var(--serif);
  font-weight:400;
  font-size:clamp(38px, 5vw, 68px);
  line-height:1.05;
  letter-spacing:-0.014em;
  color:var(--paper);
  margin:0 0 20px;
  max-width:18ch;
}
.ai-headline .em{
  font-style:italic;
  color:var(--accent);
}
.ai-lead{
  font-family:var(--serif);
  font-size:clamp(18px, 1.6vw, 21px);
  line-height:1.55;
  color:rgba(250,250,247,0.84);
  margin:0 0 32px;
  max-width:48ch;
}
.ai-actions{display:flex;flex-wrap:wrap;gap:14px;align-items:center;margin-bottom:36px}
.ai-meta{
  font-family:var(--sans);
  font-size:12px;
  letter-spacing:0.08em;
  color:rgba(250,250,247,0.5);
  text-transform:uppercase;
}

.ai-modules{
  display:grid;gap:16px;
}
.ai-module{
  background:rgba(250,250,247,0.04);
  border:1px solid rgba(250,250,247,0.10);
  padding:22px 24px;
  transition:background .18s ease, border-color .18s ease, transform .18s ease;
}
.ai-module:hover{
  background:rgba(250,250,247,0.06);
  border-color:rgba(139,58,46,0.45);
  transform:translateY(-1px);
}
.ai-module__label{
  font-family:var(--sans);
  font-size:11px;
  letter-spacing:0.18em;
  text-transform:uppercase;
  color:var(--accent);
  margin:0 0 8px;
  font-weight:600;
}
.ai-module h4{
  font-family:var(--serif);
  font-weight:500;
  font-size:18px;
  line-height:1.25;
  color:var(--paper);
  margin:0 0 10px;
}
.ai-module p{
  font-family:var(--serif);
  font-size:15px;
  line-height:1.55;
  color:rgba(250,250,247,0.72);
  margin:0;
  max-width:none;
}

.ai-stats{
  display:grid;
  grid-template-columns:repeat(3,1fr);
  gap:24px;
  margin-top:40px;
  padding-top:36px;
  border-top:1px solid rgba(250,250,247,0.10);
}
@media (max-width: 760px){.ai-stats{grid-template-columns:1fr;gap:18px}}
.ai-stat{}
.ai-stat__num{
  font-family:var(--serif);
  font-weight:500;
  font-size:clamp(36px, 3.6vw, 50px);
  line-height:1;
  letter-spacing:-0.01em;
  color:var(--paper);
  display:block;
  margin-bottom:8px;
}
.ai-stat__num em{font-style:italic;color:var(--accent)}
.ai-stat__lbl{
  font-family:var(--sans);
  font-size:11px;
  letter-spacing:0.14em;
  text-transform:uppercase;
  color:rgba(250,250,247,0.55);
}

/* Nav indicator — small terracotta dot next to "AI" item */
.nav a.nav-new::after{
  content:"";
  display:inline-block;
  width:6px;height:6px;border-radius:50%;
  background:var(--accent);
  margin-left:6px;
  vertical-align:6px;
}

/* AI page — dedicated lab layout */
.ai-page-hero{
  background:
    radial-gradient(ellipse at top right, rgba(139,58,46,0.14), transparent 60%),
    linear-gradient(180deg, #0A0C0F 0%, #14171B 100%);
  color:var(--paper);
  padding:clamp(64px, 8vw, 120px) 0 clamp(56px, 7vw, 96px);
  position:relative;
  overflow:hidden;
  isolation:isolate;
}
.ai-page-hero::before{
  content:"";
  position:absolute;inset:0;z-index:-1;
  background-image:
    linear-gradient(to right, rgba(255,255,255,0.04) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(255,255,255,0.04) 1px, transparent 1px);
  background-size:40px 40px;
  mask-image: radial-gradient(ellipse at center top, black 30%, transparent 75%);
  -webkit-mask-image: radial-gradient(ellipse at center top, black 30%, transparent 75%);
  opacity:0.6;
}
.ai-page-hero h1{
  font-family:var(--serif);
  font-weight:400;
  color:var(--paper);
  font-size:clamp(44px, 6vw, 84px);
  line-height:1.02;
  letter-spacing:-0.018em;
  max-width:18ch;
  margin:18px 0 22px;
}
.ai-page-hero h1 .em{font-style:italic;color:var(--accent)}
.ai-page-hero .lead{
  color:rgba(250,250,247,0.85);
  max-width:60ch;
  font-size:clamp(19px, 1.7vw, 22px);
}

.capability-card{
  background:var(--paper);
  border:1px solid var(--rule);
  padding:32px 30px;
  height:100%;
  transition:border-color .18s ease, transform .18s ease;
}
.capability-card:hover{border-color:var(--accent);transform:translateY(-2px)}
.capability-card .num{
  font-family:var(--serif);
  font-weight:400;
  font-size:42px;
  line-height:1;
  color:var(--accent);
  font-style:italic;
  margin:0 0 14px;
  display:block;
}
.capability-card h3{margin:0 0 12px}
.capability-card p{color:var(--grey);font-size:15.5px;line-height:1.55;margin:0 0 1em}
.capability-card p:last-child{margin-bottom:0}

.stack-row{
  display:grid;
  grid-template-columns:repeat(4,1fr);
  gap:18px;
  margin-top:24px;
}
@media (max-width: 760px){.stack-row{grid-template-columns:repeat(2,1fr)}}
.stack-row .chip{
  font-family:var(--sans);
  font-size:13px;
  letter-spacing:0.02em;
  padding:14px 18px;
  border:1px solid var(--rule);
  background:var(--paper);
  text-align:center;
  color:var(--ink);
}
.stack-row .chip strong{display:block;font-weight:600;font-size:12px;letter-spacing:0.08em;text-transform:uppercase;color:var(--accent);margin-bottom:4px}

/* =============================================================
   TRADEVAULT AFRICA — flagship platform section
   Complementary treatment to Auctus AI: light surface tone
   instead of dark ink, so the two flagships read distinct
   but both are terracotta-anchored.
   ============================================================= */

.section-tv{
  background:
    linear-gradient(180deg, var(--surface) 0%, #EDE7DA 100%);
  color:var(--ink);
  padding:clamp(72px, 9vw, 128px) 0;
  position:relative;
  overflow:hidden;
  isolation:isolate;
  border-top:1px solid rgba(17,20,24,0.08);
}
.section-tv::before{
  content:"";
  position:absolute;inset:0;z-index:-1;
  background-image:
    linear-gradient(to right, rgba(17,20,24,0.05) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(17,20,24,0.05) 1px, transparent 1px);
  background-size:44px 44px;
  mask-image: radial-gradient(ellipse at top left, black 20%, transparent 70%);
  -webkit-mask-image: radial-gradient(ellipse at top left, black 20%, transparent 70%);
  opacity:0.5;
}
.tv-mark{
  display:inline-flex;align-items:baseline;gap:12px;
  font-family:var(--serif);
  padding-bottom:6px;
  border-bottom:2px solid var(--accent);
  margin-bottom:26px;
}
.tv-mark__name{
  font-size:24px;letter-spacing:-0.01em;font-weight:500;
}
.tv-mark__sub{
  font-family:var(--sans);
  font-size:11px;letter-spacing:0.16em;text-transform:uppercase;
  color:var(--accent);font-weight:600;
}
.tv-headline{
  font-family:var(--serif);
  font-weight:400;
  font-size:clamp(38px, 5vw, 66px);
  line-height:1.06;
  letter-spacing:-0.014em;
  margin:0 0 20px;
  max-width:22ch;
}
.tv-headline .em{font-style:italic;color:var(--accent)}
.tv-lead{
  font-family:var(--serif);
  font-size:clamp(18px, 1.6vw, 21px);
  line-height:1.55;
  color:var(--grey);
  margin:0 0 30px;
  max-width:52ch;
}

.tv-features{
  display:grid;
  grid-template-columns:repeat(4,1fr);
  gap:0;
  margin-top:40px;
  border-top:1px solid rgba(17,20,24,0.14);
  border-left:1px solid rgba(17,20,24,0.14);
}
@media (max-width: 980px){.tv-features{grid-template-columns:repeat(2,1fr)}}
@media (max-width: 520px){.tv-features{grid-template-columns:1fr}}

.tv-feature{
  padding:22px 20px;
  border-right:1px solid rgba(17,20,24,0.14);
  border-bottom:1px solid rgba(17,20,24,0.14);
  background:rgba(255,255,255,0.4);
  transition:background .18s ease;
}
.tv-feature:hover{background:rgba(255,255,255,0.75)}
.tv-feature__code{
  font-family:var(--sans);
  font-size:10px;
  letter-spacing:0.2em;
  text-transform:uppercase;
  color:var(--accent);
  font-weight:600;
  margin:0 0 6px;
}
.tv-feature h4{
  font-family:var(--serif);
  font-weight:500;
  font-size:17px;
  line-height:1.25;
  margin:0 0 6px;
  color:var(--ink);
}
.tv-feature p{
  font-family:var(--serif);
  font-size:13.5px;
  line-height:1.5;
  color:var(--grey);
  margin:0;
  max-width:none;
}
.tv-metrics{
  display:flex;gap:36px;flex-wrap:wrap;
  margin-top:40px;padding-top:32px;
  border-top:1px solid rgba(17,20,24,0.14);
}
.tv-metric__num{
  font-family:var(--serif);
  font-weight:500;
  font-size:clamp(36px, 3.8vw, 52px);
  line-height:1;
  letter-spacing:-0.01em;
  color:var(--ink);
  display:block;
  margin-bottom:6px;
}
.tv-metric__num em{color:var(--accent);font-style:italic}
.tv-metric__lbl{
  font-family:var(--sans);
  font-size:11px;letter-spacing:0.14em;text-transform:uppercase;
  color:var(--grey);
}

/* Book cards for Augere Books stream */
.books-list{
  display:grid;
  grid-template-columns:repeat(2, 1fr);
  gap:36px;
}
@media (max-width: 760px){.books-list{grid-template-columns:1fr}}
.book-card{
  display:grid;
  grid-template-columns:140px 1fr;
  gap:26px;
  padding:24px 0;
  border-top:1px solid var(--ink);
  align-items:start;
}
.book-card__cover{
  aspect-ratio: 2/3;
  background: var(--surface);
  border: 1px solid var(--rule);
  display:flex;align-items:center;justify-content:center;
  position:relative;
  overflow:hidden;
}
.book-card__cover-inner{
  background:linear-gradient(135deg, var(--ink), #232830 60%, var(--accent-2));
  color:var(--paper);
  padding:14px 12px;
  text-align:center;
  width:100%;height:100%;
  display:flex;flex-direction:column;justify-content:space-between;
}
.book-card__cover-inner .spine{
  font-family:var(--sans);
  font-size:9px;
  letter-spacing:0.16em;
  text-transform:uppercase;
  color:rgba(250,250,247,0.55);
}
.book-card__cover-inner .title{
  font-family:var(--serif);
  font-size:14px;
  line-height:1.15;
  font-weight:500;
}
.book-card__cover-inner .footer{
  font-family:var(--sans);
  font-size:8.5px;
  letter-spacing:0.14em;
  text-transform:uppercase;
  color:rgba(250,250,247,0.55);
}
.book-card img.cover{
  width:100%;height:100%;object-fit:cover;display:block;
}
.book-card .meta{margin:0 0 8px}
.book-card h3{
  font-family:var(--serif);
  font-weight:500;
  font-size:22px;
  line-height:1.2;
  margin:0 0 10px;
}
.book-card p{
  font-family:var(--serif);
  font-size:15px;
  line-height:1.55;
  color:var(--grey);
  margin:0 0 12px;
  max-width:none;
}
.book-card .buy{
  display:inline-flex;align-items:center;gap:8px;
  font-family:var(--sans);
  font-size:12px;
  letter-spacing:0.06em;
  color:var(--ink);
  border:1px solid var(--ink);
  padding:8px 14px;
  transition:background .15s, color .15s;
}
.book-card .buy:hover{background:var(--ink);color:var(--paper)}

/* PDF-generation prep — applied to body just before html2pdf runs */
body.is-pdf-generating .site-header,
body.is-pdf-generating .site-footer,
body.is-pdf-generating .pdf-modal,
body.is-pdf-generating .paper-foot__actions,
body.is-pdf-generating .section--surface{display:none}
body.is-pdf-generating .paper-stage{
  background:#FFFFFF;
  padding:0;
}
body.is-pdf-generating .paper{
  box-shadow:none;
  max-width:none;
  padding:24mm 18mm;
}
body.is-pdf-generating .paper-body{
  column-count:1;
  column-rule:none;
  text-align:left;
  hyphens:none;
  font-size:11.5pt;
  line-height:1.55;
}
body.is-pdf-generating .paper-body p:first-of-type::first-letter{
  font-size:3.2em;
}
body.is-pdf-generating .paper-figure{
  margin:18px 0;
}
body.is-pdf-generating .callout,
body.is-pdf-generating .stat-patch,
body.is-pdf-generating .paper-figure{
  break-inside:avoid;
  page-break-inside:avoid;
}