/* =========================================================================
   SUSTAINABLE INTELLIGENCE — sust.in
   Design system: monochrome technical surface + one signal colour.
   Typography: geometric display + neo-grotesque body + monospace data.
   ========================================================================= */

:root{
  --bg:            #08090b;
  --bg-1:          #0d0e11;
  --bg-2:          #121319;
  --line:          rgba(255,255,255,0.09);
  --line-strong:   rgba(255,255,255,0.18);
  --line-signal:   rgba(76,116,255,0.35);

  --text:          #f2f3f0;
  --text-dim:      #a3a6ae;
  --text-faint:    #63666f;

  --signal:        #4c74ff;
  --signal-2:      #86a3ff;
  --signal-soft:   rgba(76,116,255,0.12);
  --signal-glow:   rgba(76,116,255,0.55);

  --amber:         #d9a441; /* used only for disclaimers / caution markers, not decorative */

  --radius:        2px;
  --radius-lg:     4px;

  --font-display:  'Space Grotesk', 'Inter', ui-sans-serif, system-ui, sans-serif;
  --font-body:     'Inter', ui-sans-serif, system-ui, -apple-system, sans-serif;
  --font-mono:     'JetBrains Mono', ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;

  --maxw:          1240px;
  --gutter:        clamp(20px, 5vw, 64px);

  --ease:          cubic-bezier(.16,.84,.32,1);
  --dur:           .6s;

  color-scheme: dark;
}

*{ box-sizing:border-box; margin:0; padding:0; }
html{ background:var(--bg); }
html,body{ min-height:100%; }
body{
  background:var(--bg);
  color:var(--text);
  font-family:var(--font-body);
  font-size:16px;
  line-height:1.55;
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
  overflow-x:hidden;
}
img{ max-width:100%; display:block; }
a{ color:inherit; text-decoration:none; }
ul,ol{ list-style:none; }
button{ font-family:inherit; background:none; border:none; color:inherit; cursor:pointer; }
input,textarea{ font-family:inherit; }
svg{ display:block; }

::selection{ background:var(--signal); color:#fff; }

/* Respect reduced motion globally */
@media (prefers-reduced-motion: reduce){
  *{ animation-duration:.001s !important; animation-iteration-count:1 !important; transition-duration:.001s !important; scroll-behavior:auto !important; }
}

::-webkit-scrollbar{ width:10px; height:10px; }
::-webkit-scrollbar-track{ background:var(--bg); }
::-webkit-scrollbar-thumb{ background:#26272e; border-radius:6px; }
::-webkit-scrollbar-thumb:hover{ background:#34363f; }

/* =========================================================================
   Layout helpers
   ========================================================================= */

.wrap{
  width:100%;
  max-width:var(--maxw);
  margin:0 auto;
  padding-left:var(--gutter);
  padding-right:var(--gutter);
}

.grid{ display:grid; }

.noise-layer{
  position:fixed; inset:0; pointer-events:none; z-index:1;
  opacity:.035; mix-blend-mode:overlay;
  background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='120' height='120'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='2' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");
}

.grid-overlay{
  position:fixed; inset:0; pointer-events:none; z-index:0;
  background-image:
    linear-gradient(to right, var(--line) 1px, transparent 1px),
    linear-gradient(to bottom, var(--line) 1px, transparent 1px);
  background-size: 64px 64px;
  opacity:.35;
  mask-image: radial-gradient(ellipse 80% 60% at 50% 0%, rgba(0,0,0,.9), transparent 75%);
}

/* =========================================================================
   Typography
   ========================================================================= */

h1,h2,h3,h4{
  font-family:var(--font-display);
  font-weight:600;
  letter-spacing:-0.01em;
  line-height:1.08;
}
h1{ font-size:clamp(2.4rem, 6vw, 4.6rem); }
h2{ font-size:clamp(1.9rem, 4.2vw, 3.1rem); }
h3{ font-size:clamp(1.25rem, 2.4vw, 1.7rem); }
h4{ font-size:1.05rem; }

p{ color:var(--text-dim); }
p.lead{ font-size:clamp(1.05rem,1.6vw,1.28rem); color:var(--text); max-width:44em; }

.mono{ font-family:var(--font-mono); }
.eyebrow{
  font-family:var(--font-mono);
  font-size:.72rem;
  letter-spacing:.16em;
  text-transform:uppercase;
  color:var(--signal-2);
  display:inline-flex;
  align-items:center;
  gap:.55em;
}
.eyebrow::before{
  content:"";
  width:7px; height:7px;
  background:var(--signal);
  box-shadow:0 0 10px var(--signal-glow);
  display:inline-block;
  border-radius:1px;
}
.eyebrow.dim{ color:var(--text-faint); }
.eyebrow.dim::before{ background:var(--text-faint); box-shadow:none; }

.tag-index{
  font-family:var(--font-mono);
  font-size:.7rem;
  color:var(--text-faint);
  letter-spacing:.08em;
}

.text-dim{ color:var(--text-dim); }
.text-faint{ color:var(--text-faint); }
.text-signal{ color:var(--signal-2); }
.center{ text-align:center; }

/* =========================================================================
   Buttons / CTAs
   ========================================================================= */

.btn{
  display:inline-flex;
  align-items:center;
  gap:.6em;
  font-family:var(--font-mono);
  font-size:.82rem;
  letter-spacing:.04em;
  text-transform:uppercase;
  padding:.95em 1.5em;
  border:1px solid var(--line-strong);
  border-radius:var(--radius);
  white-space:nowrap;
  transition:border-color .25s var(--ease), background-color .25s var(--ease), color .25s var(--ease), transform .25s var(--ease);
  position:relative;
}
.btn:hover{ transform:translateY(-1px); }
.btn .arrow{ transition:transform .25s var(--ease); }
.btn:hover .arrow{ transform:translateX(3px); }

.btn-primary{
  background:var(--signal);
  border-color:var(--signal);
  color:#06070a;
  font-weight:600;
}
.btn-primary:hover{ background:var(--signal-2); border-color:var(--signal-2); box-shadow:0 0 24px var(--signal-glow); }

.btn-outline{ color:var(--text); }
.btn-outline:hover{ border-color:var(--signal); color:var(--signal-2); background:var(--signal-soft); }

.btn-ghost{
  color:var(--text-dim);
  border-color:transparent;
  padding:.95em .25em;
}
.btn-ghost:hover{ color:var(--signal-2); }

.btn-row{ display:flex; flex-wrap:wrap; gap:14px; align-items:center; }

/* =========================================================================
   Header
   ========================================================================= */

.site-header{
  position:sticky; top:0; z-index:60;
  border-bottom:1px solid var(--line);
  background:rgba(8,9,11,.72);
  backdrop-filter:blur(14px) saturate(140%);
}
.site-header .wrap{
  display:flex; align-items:center; justify-content:space-between;
  height:76px;
  gap:24px;
}
.brand{
  display:flex; align-items:center;
  flex-shrink:0;
}
.brand img.brand-logo{ height:48px; width:auto; display:block; }

.primary-nav{ display:none; }
.primary-nav > ul{ display:flex; align-items:center; gap:2px; }
.nav-item{ position:relative; }
.nav-item > a, .nav-item > button{
  display:flex; align-items:center; gap:6px;
  font-family:var(--font-mono);
  font-size:.78rem;
  letter-spacing:.03em;
  text-transform:uppercase;
  padding:10px 14px;
  color:var(--text-dim);
  border-radius:var(--radius);
  transition:color .2s, background-color .2s;
}
.nav-item > a:hover, .nav-item > button:hover, .nav-item.active > a{
  color:var(--text);
  background:rgba(255,255,255,.045);
}
.nav-item.active > a{ color:var(--signal-2); }
.caret{ width:8px; height:8px; opacity:.6; transition:transform .2s; }
.nav-item:hover .caret, .nav-item.open .caret{ transform:rotate(180deg); }

.mega{
  position:absolute; top:calc(100% + 10px); left:50%;
  transform:translateX(-50%) translateY(6px);
  min-width:300px;
  background:var(--bg-1);
  border:1px solid var(--line);
  border-radius:var(--radius-lg);
  padding:10px;
  opacity:0; visibility:hidden; pointer-events:none;
  transition:opacity .18s var(--ease), transform .18s var(--ease);
  box-shadow:0 24px 48px -12px rgba(0,0,0,.6);
}
.nav-item:hover .mega, .nav-item.open .mega{
  opacity:1; visibility:visible; pointer-events:auto; transform:translateX(-50%) translateY(0);
}
.mega a{
  display:flex; flex-direction:column; gap:2px;
  padding:10px 12px;
  border-radius:var(--radius);
}
.mega a:hover{ background:rgba(255,255,255,.05); }
.mega a .mega-label{ font-family:var(--font-mono); font-size:.8rem; color:var(--text); }
.mega a .mega-desc{ font-size:.72rem; color:var(--text-faint); }
.mega a:hover .mega-label{ color:var(--signal-2); }

.header-actions{ display:flex; align-items:center; gap:10px; flex-shrink:0; }
.btn-ai{
  font-family:var(--font-mono); font-size:.75rem;
  display:inline-flex; align-items:center; gap:8px;
  padding:.6em 1em;
  border:1px solid var(--line-strong);
  border-radius:var(--radius);
  color:var(--text-dim);
}
.btn-ai:hover{ color:var(--signal-2); border-color:var(--signal); }
.btn-ai .dot{ width:6px; height:6px; border-radius:50%; background:var(--signal); box-shadow:0 0 8px var(--signal-glow); animation:pulse 2s infinite; }

.nav-toggle{
  display:flex; flex-direction:column; gap:5px;
  width:34px; height:24px; justify-content:center;
}
.nav-toggle span{ height:1px; background:var(--text); transition:transform .25s var(--ease), opacity .25s var(--ease); }
.nav-toggle.is-open span:nth-child(1){ transform:translateY(6px) rotate(45deg); }
.nav-toggle.is-open span:nth-child(2){ opacity:0; }
.nav-toggle.is-open span:nth-child(3){ transform:translateY(-6px) rotate(-45deg); }

@keyframes pulse{ 0%,100%{opacity:1;} 50%{opacity:.35;} }

/* Mobile menu */
.mobile-menu{
  position:fixed; top:76px; right:0; bottom:0; left:0; z-index:55;
  background:var(--bg);
  border-top:1px solid var(--line);
  transform:translateY(-8px);
  opacity:0; visibility:hidden; pointer-events:none;
  transition:opacity .22s var(--ease), transform .22s var(--ease);
  overflow-y:auto;
  height:calc(100vh - 76px);
}
@media (max-width:640px){
  .mobile-menu{ top:68px; height:calc(100vh - 68px); }
}
.mobile-menu.is-open{ opacity:1; visibility:visible; pointer-events:auto; transform:translateY(0); }
.mobile-menu .wrap{ padding-top:24px; padding-bottom:40px; }
.mobile-menu .wrap{ display:block; }
.mobile-menu ul{ display:flex; flex-direction:column; width:100%; }
.mobile-actions{ width:100%; }
.mobile-nav-item{ border-bottom:1px solid var(--line); width:100%; }
.mobile-nav-item > .row{
  display:flex; align-items:center; justify-content:space-between;
  width:100%;
  padding:18px 0;
  font-family:var(--font-display); font-size:1.3rem;
}
.mobile-nav-item > .row > a{ flex:1 1 auto; }
.mobile-sub-toggle{ flex:0 0 auto; padding:8px; }
.mobile-sub{
  max-height:0; overflow:hidden; transition:max-height .3s var(--ease);
}
.mobile-nav-item.open .mobile-sub{ max-height:600px; }
.mobile-sub a{
  display:block; padding:10px 0 10px 14px; border-left:1px solid var(--line);
  font-family:var(--font-mono); font-size:.85rem; color:var(--text-dim);
}
.mobile-actions{ margin-top:28px; display:flex; flex-direction:column; gap:12px; }

/* =========================================================================
   Hero
   ========================================================================= */

.hero{
  position:relative;
  padding:96px 0 88px;
  overflow:hidden;
  border-bottom:1px solid var(--line);
}
.hero-canvas{
  position:absolute; inset:0; z-index:0; opacity:.75;
}
.hero-canvas canvas{ position:absolute; inset:0; }
.hero-inner{ position:relative; z-index:2; }
@keyframes blink{ 50%{opacity:0;} }

.hero h1{
  max-width:16ch;
}
.hero h1 .type-cursor{
  display:inline-block; width:.5ch; background:var(--signal); margin-left:.05em;
  animation:blink 1s steps(2) infinite;
  height:.8em; transform:translateY(.05em);
}
.hero .lead{ margin-top:26px; }
.hero .btn-row{ margin-top:40px; }

/* Hero metadata rail — thin architectural data strip, replaces heavy cards */
.hero-rail{
  margin-top:60px;
  border-top:1px solid var(--line);
  padding-top:0;
}
.hero-rail ul{
  display:flex;
  width:100%;
}
.hero-rail li{
  flex:1 1 0;
  padding:20px 40px 0 0;
  min-width:0;
}
.hero-rail li:first-child{ padding-left:0; }
.hero-rail li:last-child{ padding-right:0; }
.hero-rail .rail-label{
  font-family:var(--font-mono); font-size:.66rem; letter-spacing:.18em; text-transform:uppercase;
  color:var(--text-faint); display:block; margin-bottom:10px;
}
.hero-rail .rail-label::before{ content:"— "; color:var(--line-strong); }
.hero-rail .rail-value{
  font-family:var(--font-mono); font-size:.82rem; color:var(--text-dim); letter-spacing:.01em; line-height:1.5;
  display:block;
}

/* =========================================================================
   Sections
   ========================================================================= */

section{ position:relative; z-index:2; }
.section{ padding:96px 0; border-bottom:1px solid var(--line); }
.section.no-border{ border-bottom:none; }
.section.tight{ padding:64px 0; }
.section-head{ max-width:52em; margin-bottom:56px; }
.section-head h2{ margin-top:16px; }
.section-head p{ margin-top:18px; }
.section-foot{ margin-top:56px; }

.section.bg-1{ background:var(--bg-1); }

/* Numbered index list used for page overviews / step systems */
.idx-row{
  display:flex; align-items:baseline; gap:16px;
  padding:22px 0;
  border-top:1px solid var(--line);
}
.idx-row:last-child{ border-bottom:1px solid var(--line); }
.idx-row .n{ font-family:var(--font-mono); color:var(--text-faint); font-size:.85rem; }

/* =========================================================================
   Cards
   ========================================================================= */

.card-grid{ display:grid; gap:1px; background:var(--line); border:1px solid var(--line); }
.card-grid.cols-2{ grid-template-columns:repeat(2,1fr); }
.card-grid.cols-3{ grid-template-columns:repeat(3,1fr); }
.card-grid.cols-4{ grid-template-columns:repeat(4,1fr); }
.card-grid.cols-6{ grid-template-columns:repeat(6,1fr); }

.card{
  background:var(--bg);
  padding:30px 28px;
  position:relative;
  transition:background-color .3s var(--ease);
  display:flex; flex-direction:column; gap:12px;
}
a.card:hover, .card.hoverable:hover{ background:var(--bg-1); }
.card .card-top{ display:flex; align-items:center; justify-content:space-between; gap:10px; }
.card h3, .card h4{ margin:0; }
.card p{ margin:0; font-size:.94rem; }
.card .card-link{
  margin-top:auto;
  font-family:var(--font-mono); font-size:.72rem; letter-spacing:.05em; text-transform:uppercase;
  color:var(--text-faint); display:flex; align-items:center; gap:6px;
  transition:color .2s, gap .2s;
}
a.card:hover .card-link, .card.hoverable:hover .card-link{ color:var(--signal-2); gap:10px; }

/* Status pills */
.pill{
  font-family:var(--font-mono); font-size:.62rem; letter-spacing:.08em; text-transform:uppercase;
  padding:.3em .65em; border:1px solid var(--line-strong); border-radius:20px; color:var(--text-faint);
  display:inline-flex; align-items:center; gap:6px; white-space:nowrap;
}
.pill .dot{ width:5px; height:5px; border-radius:50%; background:var(--text-faint); }
.pill.active{ color:var(--signal-2); border-color:var(--line-signal); }
.pill.active .dot{ background:var(--signal); box-shadow:0 0 6px var(--signal-glow); }
.pill.dev{ color:#d9a441; border-color:rgba(217,164,65,.35); }
.pill.dev .dot{ background:#d9a441; }

/* Entity badges (ASBL / CIC) */
.entity-badge{
  display:inline-flex; align-items:center; gap:8px;
  font-family:var(--font-mono); font-size:.68rem; letter-spacing:.06em; text-transform:uppercase;
  padding:.4em .8em; border-radius:20px;
}
.entity-badge.asbl{ color:#a3b8ff; background:rgba(76,116,255,.1); border:1px solid rgba(76,116,255,.28); }
.entity-badge.cic{ color:#d7d9de; background:rgba(255,255,255,.05); border:1px solid var(--line-strong); }
.entity-badge.joint{ color:var(--text-dim); background:rgba(255,255,255,.03); border:1px dashed var(--line-strong); }

/* =========================================================================
   Ecosystem flow (sequence diagram)
   ========================================================================= */

.flow{
  display:grid; grid-template-columns:repeat(5,1fr); gap:0;
  border:1px solid var(--line);
}
.flow .node{
  padding:26px 20px; border-right:1px solid var(--line);
  position:relative;
  transition:background-color .3s;
}
.flow .node:last-child{ border-right:none; }
.flow .node:hover{ background:var(--bg-1); }
.flow .node .num{ font-family:var(--font-mono); font-size:.68rem; color:var(--text-faint); }
.flow .node h4{ margin-top:10px; }
.flow .node p{ margin-top:8px; font-size:.82rem; }
.flow .node::after{
  content:"→";
  position:absolute; right:-11px; top:50%; transform:translateY(-50%);
  color:var(--text-faint); font-family:var(--font-mono); font-size:.9rem;
  background:var(--bg); width:20px; text-align:center; z-index:2;
}
.flow .node:last-child::after{ content:""; }

/* =========================================================================
   Process steps
   ========================================================================= */

.process{ counter-reset:step; }
.process .step{
  counter-increment:step;
  display:grid; grid-template-columns:64px 1fr; gap:20px;
  padding:24px 0; border-top:1px solid var(--line);
}
.process .step:last-child{ border-bottom:1px solid var(--line); }
.process .step::before{
  content:counter(step, decimal-leading-zero);
  font-family:var(--font-mono); color:var(--signal-2); font-size:.95rem; padding-top:2px;
}
.process .step h4{ margin-bottom:6px; }
.process .step p{ font-size:.92rem; margin:0; }

/* =========================================================================
   Disclaimer / callout box
   ========================================================================= */

.callout{
  border:1px solid var(--line-strong);
  border-left:2px solid var(--amber);
  background:var(--bg-1);
  padding:20px 24px;
  border-radius:var(--radius);
  display:flex; gap:14px;
}
.callout .mark{ font-family:var(--font-mono); color:var(--amber); font-size:.8rem; padding-top:2px; }
.callout p{ font-size:.86rem; margin:0; color:var(--text-dim); }
.callout p + p{ margin-top:10px; }
.callout.signal{ border-left-color:var(--signal); }
.callout.signal .mark{ color:var(--signal-2); }

/* =========================================================================
   Credentials
   ========================================================================= */

.credential-row{
  display:flex; flex-wrap:wrap; gap:10px;
}
.credential{
  border:1px solid var(--line);
  padding:16px 18px;
  min-width:220px; flex:1 1 220px;
  border-radius:var(--radius);
}
.credential .credential-label{
  font-family:var(--font-mono); font-size:.72rem; letter-spacing:.03em; color:var(--text);
}
.credential .credential-note{ font-size:.78rem; color:var(--text-faint); margin-top:6px; }
.credential .credential-cat{
  font-family:var(--font-mono); font-size:.6rem; letter-spacing:.1em; text-transform:uppercase; color:var(--signal-2); margin-bottom:8px; display:block;
}

/* Legacy .ai-prompts kept for reuse inside the new chat component's chip row. */
.ai-prompts{ display:flex; flex-wrap:wrap; gap:8px; margin-top:14px; }
.ai-prompts button{
  border:1px solid var(--line-strong); border-radius:20px; padding:.5em 1em;
  font-family:var(--font-mono); font-size:.72rem; color:var(--text-dim);
  transition:border-color .2s, color .2s;
}
.ai-prompts button:hover{ border-color:var(--signal); color:var(--signal-2); }

/* =========================================================================
   Breadcrumb / page header
   ========================================================================= */

.crumb{
  display:flex; align-items:center; gap:8px; flex-wrap:wrap;
  font-family:var(--font-mono); font-size:.72rem; color:var(--text-faint); letter-spacing:.03em;
  margin-bottom:26px;
}
.crumb a:hover{ color:var(--signal-2); }
.crumb .sep{ opacity:.5; }

.page-hero{
  padding:70px 0 64px;
  border-bottom:1px solid var(--line);
}
.page-hero h1{ max-width:20ch; }
.page-hero p.lead{ margin-top:20px; }
.page-hero .pill-row{ display:flex; gap:10px; margin-bottom:24px; flex-wrap:wrap; }

/* =========================================================================
   Table-ish key/value list
   ========================================================================= */

.kv-list .kv-row{
  display:grid; grid-template-columns:200px 1fr;
  gap:20px;
  padding:16px 0;
  border-top:1px solid var(--line);
}
.kv-list .kv-row:last-child{ border-bottom:1px solid var(--line); }
.kv-list .kv-row dt{ font-family:var(--font-mono); font-size:.75rem; color:var(--text-faint); letter-spacing:.04em; text-transform:uppercase; }
.kv-list .kv-row dd{ color:var(--text-dim); font-size:.94rem; }

/* =========================================================================
   Footer
   ========================================================================= */

.site-footer{ background:var(--bg-1); border-top:1px solid var(--line); }
.footer-top{ padding:80px 0 56px; }
.footer-grid{
  display:grid;
  grid-template-columns:1.6fr repeat(4,1fr);
  gap:40px;
}
.footer-brand .brand{ margin-bottom:18px; }
.footer-brand .brand img.brand-logo{ height:96px; width:auto; }
.footer-brand p{ font-size:.88rem; max-width:32ch; }
.footer-brand .mission{ margin-top:14px; font-family:var(--font-mono); font-size:.72rem; color:var(--signal-2); letter-spacing:.02em; }
.footer-col h5{
  font-family:var(--font-mono); font-size:.68rem; letter-spacing:.12em; text-transform:uppercase; color:var(--text-faint);
  margin-bottom:16px;
}
.footer-col ul{ display:flex; flex-direction:column; gap:11px; }
.footer-col a{ font-size:.86rem; color:var(--text-dim); transition:color .2s; }
.footer-col a:hover{ color:var(--signal-2); }

.footer-bottom{
  border-top:1px solid var(--line);
  padding:24px 0;
  display:flex; align-items:center; justify-content:space-between; flex-wrap:wrap; gap:14px;
}
.footer-bottom .entities{ display:flex; gap:10px; flex-wrap:wrap; }
.footer-legal{
  display:flex; gap:18px; flex-wrap:wrap;
  font-family:var(--font-mono); font-size:.7rem; color:var(--text-faint);
}
.footer-legal span{ opacity:.55; }
.footer-tagline{
  font-family:var(--font-display); font-size:1.1rem; color:var(--text);
}
.footer-copy{ font-family:var(--font-mono); font-size:.7rem; color:var(--text-faint); }

/* =========================================================================
   Reveal-on-scroll utility
   ========================================================================= */

[data-reveal]{
  opacity:0; transform:translateY(18px);
  transition:opacity .7s var(--ease), transform .7s var(--ease);
}
[data-reveal].in{ opacity:1; transform:translateY(0); }
[data-reveal-group] > *{ transition-delay:calc(var(--i,0) * 70ms); }

/* =========================================================================
   Misc components
   ========================================================================= */

.divider{ height:1px; background:var(--line); border:none; margin:0; }

.stat-row{ display:grid; grid-template-columns:repeat(auto-fit,minmax(160px,1fr)); gap:1px; background:var(--line); border:1px solid var(--line); }
.stat{ background:var(--bg); padding:26px 24px; }
.stat .num{ font-family:var(--font-mono); font-size:1.5rem; color:var(--signal-2); }
.stat .label{ font-size:.78rem; color:var(--text-faint); margin-top:6px; }

.marquee{ overflow:hidden; border-top:1px solid var(--line); border-bottom:1px solid var(--line); padding:16px 0; }
.marquee .track{ display:flex; gap:60px; white-space:nowrap; animation:marquee 34s linear infinite; }
.marquee .track span{ font-family:var(--font-mono); font-size:.78rem; color:var(--text-faint); letter-spacing:.06em; text-transform:uppercase; }
@keyframes marquee{ from{ transform:translateX(0);} to{ transform:translateX(-50%);} }

.two-col{ display:grid; grid-template-columns:1fr 1fr; gap:48px; }
.two-col.asym-l{ grid-template-columns:0.9fr 1.3fr; }
.two-col.asym-r{ grid-template-columns:1.3fr 0.9fr; }

.pathway-list{ display:flex; flex-direction:column; gap:0; }
.pathway-list .row{
  display:grid; grid-template-columns:1fr auto; align-items:center; gap:16px;
  padding:20px 0; border-top:1px solid var(--line);
}
.pathway-list .row:last-child{ border-bottom:1px solid var(--line); }

.related-links{ display:flex; flex-wrap:wrap; gap:10px; }
.related-links a{
  font-family:var(--font-mono); font-size:.74rem; color:var(--text-dim);
  border:1px solid var(--line-strong); padding:.55em 1em; border-radius:20px;
}
.related-links a:hover{ color:var(--signal-2); border-color:var(--signal); }

.symbol-mark{ filter:drop-shadow(0 0 30px rgba(76,116,255,.18)); }
.spin-slow{ animation:spin 60s linear infinite; }
@keyframes spin{ to{ transform:rotate(360deg); } }

.brand-glyph-bg{
  position:absolute; z-index:0; opacity:.06; pointer-events:none;
  width:640px; height:640px;
}

/* Insights category chips */
.chip-row{ display:flex; flex-wrap:wrap; gap:8px; }
.chip{
  font-family:var(--font-mono); font-size:.72rem; letter-spacing:.03em;
  padding:.5em 1em; border:1px solid var(--line-strong); border-radius:20px; color:var(--text-dim);
}
.chip.is-active{ color:var(--signal-2); border-color:var(--signal); background:var(--signal-soft); }

.insight-card{
  border:1px solid var(--line);
  padding:26px;
  display:flex; flex-direction:column; gap:14px;
  min-height:220px;
}
.insight-card .type{ font-family:var(--font-mono); font-size:.66rem; letter-spacing:.1em; text-transform:uppercase; color:var(--text-faint); }
.insight-card h4{ margin:0; }
.insight-card .meta{ margin-top:auto; font-family:var(--font-mono); font-size:.7rem; color:var(--text-faint); display:flex; gap:12px; }

/* =========================================================================
   Responsive
   ========================================================================= */

@media (min-width:960px){
  .primary-nav{ display:block; }
  .nav-toggle, .btn-menu-label{ display:none; }
}

@media (max-width:959px){
  .header-actions .hide-mobile{ display:none; }
}

@media (max-width:1040px){
  .footer-grid{ grid-template-columns:1fr 1fr; gap:36px; }
  .flow{ grid-template-columns:1fr; }
  .flow .node{ border-right:none; border-bottom:1px solid var(--line); }
  .flow .node::after{ content:"↓"; right:auto; left:20px; top:auto; bottom:-11px; transform:none; }
  .flow .node:last-child{ border-bottom:none; }
}

@media (max-width:840px){
  .two-col, .two-col.asym-l, .two-col.asym-r{ grid-template-columns:1fr; }
  .card-grid.cols-2, .card-grid.cols-3, .card-grid.cols-4, .card-grid.cols-6{ grid-template-columns:1fr; }
  .kv-list .kv-row{ grid-template-columns:1fr; gap:6px; }
}

@media (max-width:640px){
  .site-header .wrap{ height:68px; }
  .brand img.brand-logo{ height:36px; }
  .hero{ padding:64px 0 56px; }
  .section{ padding:64px 0; }
  .stat-row{ grid-template-columns:1fr 1fr; }
  .process .step{ grid-template-columns:40px 1fr; }
}

/* =========================================================================
   HOMEPAGE REVISION — composition-varied section system
   Pattern sequence: metadata rail → asymmetric triptych → network diagram
   → icon matrix → conversational interface → open invitation → paired profiles
   ========================================================================= */

/* -------------------------------------------------------------------------
   Hero rail responsive behaviour (mobile: horizontal scroll rail)
   ------------------------------------------------------------------------- */
@media (max-width:760px){
  .hero-rail ul{
    display:flex;
    overflow-x:auto;
    -webkit-overflow-scrolling:touch;
    scrollbar-width:none;
    gap:0;
  }
  .hero-rail ul::-webkit-scrollbar{ display:none; }
  .hero-rail li{
    flex:0 0 auto;
    min-width:62%;
    padding:20px 32px 0 0;
  }
  .hero-rail li:first-child{ padding-left:0; }
}

/* -------------------------------------------------------------------------
   Industry 5.0 — pull quote + asymmetric triptych
   ------------------------------------------------------------------------- */
.i5-quote{
  border-left:2px solid var(--signal);
  padding-left:20px;
  margin-top:24px;
  max-width:38ch;
}
.i5-quote p{
  font-family:var(--font-display);
  font-size:clamp(1rem,1.6vw,1.2rem);
  color:var(--text-dim);
  font-weight:500;
  line-height:1.45;
  font-style:normal;
}
.i5-quote p::before{ content:"“"; color:var(--signal-2); }
.i5-quote p::after{ content:"”"; color:var(--signal-2); }

.i5-credential{
  display:inline-flex; align-items:center; gap:8px;
  margin-top:26px;
  font-family:var(--font-mono); font-size:.68rem; letter-spacing:.03em;
  color:var(--text-faint);
}
.i5-credential .dot{ width:5px; height:5px; border-radius:50%; background:var(--signal); flex-shrink:0; box-shadow:0 0 6px var(--signal-glow); }

.triptych{
  position:relative;
  display:grid;
  grid-template-columns:1fr 1fr 1fr;
  gap:48px;
  margin-top:64px;
}
.triptych .path{
  position:relative;
  padding:0;
}
.triptych .path-icon{
  width:38px; height:38px;
  display:flex; align-items:center; justify-content:center;
  border:1px solid var(--line-strong);
  border-radius:50%;
  color:var(--signal-2);
  margin-bottom:20px;
}
.triptych .path-icon svg{ width:18px; height:18px; }
.triptych .path-index{
  font-family:var(--font-mono); font-size:.66rem; color:var(--text-faint); letter-spacing:.1em;
  display:block; margin-bottom:10px;
}
.triptych .path h4{ margin-bottom:12px; }
.triptych .path p{ font-size:.9rem; }
.triptych .path-link{
  display:inline-flex; align-items:center; gap:6px; margin-top:18px;
  font-family:var(--font-mono); font-size:.72rem; letter-spacing:.04em; text-transform:uppercase;
  color:var(--text-faint);
  transition:color .2s, gap .2s;
}
.triptych .path:hover .path-link, .triptych .path:focus-within .path-link{ color:var(--signal-2); gap:10px; }
.triptych .path-link .arrow{ transition:transform .2s var(--ease); }
.triptych .path:hover .path-link .arrow{ transform:translateX(3px); }

/* connecting line motif threading the three pathways together */
.triptych::before{
  content:"";
  position:absolute;
  left:0; right:0; top:19px;
  height:1px;
  background:linear-gradient(to right, transparent, var(--line-strong) 8%, var(--line-strong) 92%, transparent);
  z-index:0;
  pointer-events:none;
}

@media (max-width:840px){
  .triptych{ grid-template-columns:1fr; gap:40px; }
  .triptych .path{ border-bottom:1px solid var(--line); padding-bottom:32px !important; }
  .triptych .path:last-child{ border-bottom:none; padding-bottom:0 !important; }
  .triptych::before{ display:none; }
}

/* -------------------------------------------------------------------------
   Ecosystem — interactive network diagram
   ------------------------------------------------------------------------- */
.network{
  display:grid;
  grid-template-columns:1.3fr 1fr;
  gap:56px;
  margin-top:56px;
  align-items:center;
}
.network-stage{
  position:relative;
  width:100%;
  aspect-ratio:1.5/1;
}
.network-stage svg{ width:100%; height:100%; overflow:visible; }
.net-line{
  stroke:var(--line-strong);
  stroke-width:1;
  fill:none;
  transition:stroke .3s var(--ease), stroke-width .3s var(--ease), opacity .3s var(--ease);
  opacity:.55;
}
.net-line.is-active{
  stroke:var(--signal);
  stroke-width:1.4;
  opacity:1;
}
.net-node{
  cursor:pointer;
  outline:none;
}
.net-node .net-dot{
  fill:var(--bg-1);
  stroke:var(--line-strong);
  stroke-width:1.4;
  transition:stroke .25s var(--ease), fill .25s var(--ease), r .25s var(--ease);
}
.net-node .net-label{
  font-family:var(--font-mono);
  font-size:10px;
  fill:var(--text-dim);
  text-anchor:middle;
  transition:fill .25s var(--ease);
}
.net-node:hover .net-dot, .net-node:focus .net-dot, .net-node.is-active .net-dot{
  stroke:var(--signal);
  fill:var(--signal-soft);
}
.net-node:hover .net-label, .net-node:focus .net-label, .net-node.is-active .net-label{
  fill:var(--signal-2);
}
.net-node:focus .net-dot{ stroke-width:2; }
.net-node .net-status{
  fill:var(--text-faint);
  font-family:var(--font-mono);
  font-size:8px;
  text-anchor:middle;
}

.net-panel{
  border:1px solid var(--line);
  border-radius:var(--radius-lg);
  padding:28px;
  background:var(--bg-1);
  min-height:220px;
  display:flex; flex-direction:column;
}
.net-panel-label{
  font-family:var(--font-mono); font-size:.66rem; letter-spacing:.12em; text-transform:uppercase;
  color:var(--text-faint); margin-bottom:14px;
}
.net-panel-title{ font-family:var(--font-display); font-size:1.3rem; font-weight:600; margin-bottom:12px; }
.net-panel-text{ font-size:.92rem; color:var(--text-dim); flex:1 1 auto; }
.net-panel-link{
  margin-top:20px;
  display:inline-flex; align-items:center; gap:8px;
  font-family:var(--font-mono); font-size:.74rem; letter-spacing:.04em; text-transform:uppercase;
  color:var(--signal-2);
  transition:gap .2s;
}
.net-panel-link:hover{ gap:12px; }

@media (max-width:900px){
  .network{ grid-template-columns:1fr; gap:32px; }
}

/* Mobile vertical connected pathway fallback */
.net-mobile-path{ display:none; }
@media (max-width:640px){
  .network-stage{ display:none; }
  .net-mobile-path{
    display:flex; flex-direction:column; gap:0;
  }
  .net-mobile-path a{
    position:relative;
    display:flex; align-items:center; gap:14px;
    padding:18px 0 18px 4px;
    border-left:1px solid var(--line-strong);
    padding-left:24px;
  }
  .net-mobile-path a::before{
    content:"";
    position:absolute; left:-5px; top:50%; transform:translateY(-50%);
    width:9px; height:9px; border-radius:50%;
    background:var(--bg); border:1.4px solid var(--line-strong);
  }
  .net-mobile-path a:hover::before, .net-mobile-path a:focus::before{ border-color:var(--signal); background:var(--signal-soft); }
  .net-mobile-path .mp-n{ font-family:var(--font-mono); font-size:.68rem; color:var(--text-faint); }
  .net-mobile-path .mp-title{ font-family:var(--font-display); font-weight:600; }
  .net-mobile-path .mp-desc{ font-size:.8rem; color:var(--text-faint); margin-top:2px; }
}

/* -------------------------------------------------------------------------
   Applications — two-row icon matrix
   ------------------------------------------------------------------------- */
.icon-matrix{
  display:grid;
  grid-template-columns:repeat(3,1fr);
  gap:1px;
  background:var(--line);
  border:1px solid var(--line);
  margin-top:52px;
}
.icon-matrix a{
  background:var(--bg);
  padding:32px 26px;
  display:flex; flex-direction:column; gap:16px;
  transition:background-color .3s var(--ease);
}
.icon-matrix a:hover, .icon-matrix a:focus{ background:var(--bg-1); }
.icon-matrix .im-icon{
  width:34px; height:34px;
  color:var(--text-dim);
  transition:color .25s var(--ease), transform .25s var(--ease);
}
.icon-matrix a:hover .im-icon, .icon-matrix a:focus .im-icon{ color:var(--signal-2); transform:translateX(2px); }
.icon-matrix .im-icon svg{ width:100%; height:100%; }
.icon-matrix h4{ margin:0; }
.icon-matrix p{ font-size:.86rem; margin:0; }
.icon-matrix .im-arrow{
  margin-top:auto;
  font-family:var(--font-mono); font-size:.72rem; letter-spacing:.05em; text-transform:uppercase;
  color:var(--text-faint);
  display:flex; align-items:center; gap:6px;
  transition:color .2s, gap .2s;
}
.icon-matrix a:hover .im-arrow, .icon-matrix a:focus .im-arrow{ color:var(--signal-2); gap:10px; }

@media (max-width:840px){
  .icon-matrix{ grid-template-columns:1fr; }
}
@media (min-width:841px) and (max-width:1080px){
  .icon-matrix{ grid-template-columns:repeat(2,1fr); }
}

/* -------------------------------------------------------------------------
   Sustin AI — scripted interactive demonstration (monochrome, no bubbles-as-colour)
   ------------------------------------------------------------------------- */
.ai-demo-layout{
  margin-top:18px;
  display:grid;
  grid-template-columns:1fr 1fr;
  align-items:start;
  gap:56px;
}
.ai-demo-intro{ max-width:44ch; padding-top:6px; }
.ai-demo-intro h2{ max-width:16ch; }
.ai-demo-intro .lead{ margin-top:18px; }
.ai-demo-intro .chat-disclaimer{ margin-top:24px; }

.chat-window{
  border:1px solid var(--line);
  border-radius:var(--radius-lg);
  background:var(--bg-1);
  display:flex; flex-direction:column;
  overflow:hidden;
}
@media (max-width:900px){
  .ai-demo-layout{ grid-template-columns:1fr; gap:32px; }
  .ai-demo-intro{ max-width:none; }
  .ai-demo-intro .chat-disclaimer{ display:none; }
}
.chat-header{
  display:flex; align-items:center; justify-content:space-between;
  padding:16px 20px; border-bottom:1px solid var(--line);
}
.chat-header .chat-title-block{ display:flex; flex-direction:column; gap:3px; }
.chat-header .chat-title{
  font-family:var(--font-display); font-weight:600; font-size:.98rem; letter-spacing:.01em;
}
.chat-header .chat-status{
  font-family:var(--font-mono); font-size:.68rem; color:var(--text-faint); display:flex; align-items:center; gap:7px;
}
.chat-header .chat-status .dot{ width:6px; height:6px; border-radius:50%; background:var(--signal); box-shadow:0 0 6px var(--signal-glow); }
.chat-clear{
  font-family:var(--font-mono); font-size:.68rem; letter-spacing:.04em; text-transform:uppercase;
  color:var(--text-faint); border:1px solid var(--line-strong); border-radius:20px; padding:.4em .9em;
  transition:color .2s, border-color .2s;
}
.chat-clear:hover{ color:var(--signal-2); border-color:var(--signal); }

.chat-messages{
  flex:1 1 auto;
  min-height:260px;
  max-height:420px;
  overflow-y:auto;
  padding:20px 20px 8px;
  display:flex; flex-direction:column; gap:16px;
}
.chat-msg{ display:flex; flex-direction:column; gap:6px; max-width:88%; }
.chat-msg-user{ align-self:flex-end; align-items:flex-end; }
.chat-msg-assistant{ align-self:flex-start; align-items:flex-start; }
.chat-who{
  font-family:var(--font-mono); font-size:.64rem; letter-spacing:.08em; text-transform:uppercase; color:var(--text-faint);
}
.chat-bubble{
  border:1px solid var(--line);
  border-radius:var(--radius);
  padding:12px 16px;
  background:var(--bg);
}
.chat-msg-user .chat-bubble{ background:var(--bg-2); border-color:var(--line-strong); }
.chat-text{ font-size:.9rem; color:var(--text); margin:0; line-height:1.55; white-space:pre-wrap; }
.chat-msg.is-pending .chat-text{ color:var(--text-faint); }
.chat-msg.is-error .chat-bubble{ border-left:2px solid var(--amber); }
.chat-msg.is-error .chat-text{ color:var(--text-dim); }

/* typing indicator — three pulsing dots shown before the prepared answer reveals */
.chat-typing{ display:inline-flex; align-items:center; gap:4px; padding:2px 0; }
.chat-typing span{
  width:5px; height:5px; border-radius:50%; background:var(--text-faint);
  animation:chat-typing-pulse 1.1s ease-in-out infinite;
}
.chat-typing span:nth-child(2){ animation-delay:.15s; }
.chat-typing span:nth-child(3){ animation-delay:.3s; }
@keyframes chat-typing-pulse{ 0%,60%,100%{ opacity:.25; transform:translateY(0); } 30%{ opacity:1; transform:translateY(-2px); } }
@media (prefers-reduced-motion:reduce){
  .chat-typing span{ animation:none; opacity:.6; }
}

.chat-sources{ display:flex; flex-direction:column; gap:6px; margin-top:10px; padding-top:10px; border-top:1px solid var(--line); }
.chat-source-link{
  display:flex; align-items:center; justify-content:space-between; gap:10px;
  font-family:var(--font-mono); font-size:.72rem; color:var(--signal-2);
}
.chat-source-link:hover{ text-decoration:underline; }
.chat-source-title{ overflow:hidden; text-overflow:ellipsis; white-space:nowrap; }

.chat-suggested{
  padding:0 20px 20px;
  display:flex; flex-wrap:wrap; gap:8px;
  border-top:1px solid var(--line);
  margin-top:4px;
  padding-top:16px;
}
.chat-chip{
  border:1px solid var(--line-strong); border-radius:20px; padding:.5em 1em;
  font-family:var(--font-mono); font-size:.72rem; color:var(--text-dim);
  transition:border-color .2s, color .2s, opacity .2s;
}
.chat-chip:hover, .chat-chip:focus{ border-color:var(--signal); color:var(--signal-2); }
.chat-chip:disabled{ opacity:.35; cursor:default; }

.chat-disclaimer{
  font-size:.76rem; color:var(--text-faint); margin-top:16px; max-width:60ch;
}

@media (max-width:640px){
  .chat-messages{ max-height:340px; }
  .chat-msg{ max-width:96%; }
}

/* -------------------------------------------------------------------------
   Partnership — open institutional invitation, left-aligned with the
   registered SDG Acceleration Action logo placed beside the text
   ------------------------------------------------------------------------- */
.partnership-open{
  position:relative;
  padding:88px 0;
}
.partnership-layout{
  display:grid;
  grid-template-columns:1fr auto;
  align-items:center;
  gap:64px;
}
.partnership-open .content{ text-align:left; max-width:52ch; }
.partnership-open .legal-note{
  margin-top:28px;
  font-size:.8rem; color:var(--text-faint);
  max-width:62ch;
}
.partnership-logo{
  flex-shrink:0;
  display:flex; align-items:center; justify-content:center;
  padding:28px 32px;
  border:1px solid var(--line);
  border-radius:var(--radius-lg);
  background:var(--bg-1);
}
.partnership-logo img{
  width:280px; height:auto;
}

@media (max-width:900px){
  .partnership-layout{ grid-template-columns:1fr; gap:40px; }
  .partnership-logo{ justify-content:flex-start; padding:24px 28px; }
  .partnership-logo img{ width:220px; }
}

/* -------------------------------------------------------------------------
   Entities — paired institutional profiles with contextual flags
   ------------------------------------------------------------------------- */
.entity-pair{
  position:relative;
  display:grid;
  grid-template-columns:1fr 1fr;
  gap:0;
  border:1px solid var(--line);
  margin-top:44px;
}
.entity-panel{
  position:relative;
  padding:40px 36px;
  overflow:hidden;
  border-right:1px solid var(--line);
}
.entity-panel:last-child{ border-right:none; }
.entity-flag-bg{
  position:absolute; inset:0; z-index:0; pointer-events:none;
  width:100%; height:100%;
  object-fit:cover;
  opacity:.08;
  filter:saturate(.65) contrast(1.05);
}
.entity-panel.asbl .entity-flag-bg.flag-eu{
  object-position:60% 40%;
}
.entity-panel.cic .entity-flag-bg.flag-uk{
  object-position:30% 30%;
}
.entity-panel .entity-content{ position:relative; z-index:1; }
.entity-panel h3{ margin-top:16px; font-size:1.35rem; }
.entity-panel p{ margin-top:12px; font-size:.92rem; max-width:36ch; }
.entity-panel .entity-role{
  font-family:var(--font-mono); font-size:.72rem; letter-spacing:.02em; color:var(--text-dim);
  margin-top:6px;
}
.entity-panel .entity-explore{
  display:inline-flex; align-items:center; gap:8px; margin-top:22px;
  font-family:var(--font-mono); font-size:.76rem; letter-spacing:.03em; text-transform:uppercase;
  color:var(--signal-2);
  transition:gap .2s;
}
.entity-panel .entity-explore:hover{ gap:12px; }

/* shared mission axis connecting the two panels */
.entity-pair::after{
  content:"";
  position:absolute; left:50%; top:0; bottom:0; width:1px;
  background:var(--line-strong);
  z-index:2;
  pointer-events:none;
}
.entity-pair::before{
  content:"";
  position:absolute; left:50%; top:50%; width:9px; height:9px;
  transform:translate(-50%,-50%) rotate(45deg);
  background:var(--bg); border:1.4px solid var(--signal);
  z-index:3;
  pointer-events:none;
}

@media (max-width:760px){
  .entity-pair{ grid-template-columns:1fr; }
  .entity-panel{ border-right:none; border-bottom:1px solid var(--line); }
  .entity-panel:last-child{ border-bottom:none; }
  .entity-pair::after{ left:0; right:0; top:50%; bottom:auto; width:auto; height:1px; }
  .entity-pair::before{ top:50%; left:50%; }
}

/* -------------------------------------------------------------------------
   Section-transition rhythm helpers (spacing/line variation, not colour)
   ------------------------------------------------------------------------- */
.section-divider-label{
  font-family:var(--font-mono); font-size:.64rem; letter-spacing:.14em; text-transform:uppercase;
  color:var(--signal-2);
  display:flex; align-items:center; gap:14px;
}
.section-divider-label::after{
  content:""; flex:1 1 auto; height:1px; background:var(--line);
}