/* ============================================================
   IIAT — feuille de style commune (instance Heteractis V16)
   Design : repris d'agence-ia-toulouse.fr (v3 « NEURAL · bleu pro »)
   Encre bleu-nuit, accent bleu pro / ciel, Space Grotesk + Inter,
   labels mono, sections sombre / claire / noire, filets lumineux.
   Polices et icônes 100 % locales (assets/fonts). Classes ii-*.
   ============================================================ */

@font-face{font-family:'Space Grotesk';font-style:normal;font-weight:300 700;font-display:swap;src:url(/assets/fonts/space-grotesk.woff2) format('woff2')}
@font-face{font-family:'Inter';font-style:normal;font-weight:100 900;font-display:swap;src:url(/assets/fonts/inter.woff2) format('woff2')}

:root{
  --ink-900:#060912;--ink-800:#08101F;--ink-700:#0B1525;--ink-600:#0F1B30;
  --surface:#0E1A2E;--surface-2:#122036;
  --line:rgba(120,150,200,.13);--line-strong:rgba(120,150,200,.24);

  --blue:#2563EB;--blue-600:#1D4ED8;--blue-700:#1E40AF;--blue-300:#60A5FA;--blue-200:#93C5FD;
  /* ACCENT IIAT : la seule valeur à changer pour recolorer les filets, étiquettes mono, liens et réseau de nœuds sur fond sombre */
  --iiat-accent:#2DD4BF;
  --accent:var(--iiat-accent);

  --text:#EAF0FA;--text-dim:#A6B2CC;--text-mute:#6E7C9A;

  --light-bg:#F4F7FC;--light-bg-2:#EAF0FA;--light-surface:#FFFFFF;
  --light-line:rgba(15,27,45,.10);--light-line-strong:rgba(15,27,45,.16);
  --light-text:#0B1525;--light-dim:#475569;--light-mute:#64748B;

  --black-bg:#04060C;

  --grad:linear-gradient(120deg,#2563EB 0%,#1D4ED8 55%,#1E3A8A 100%);
  --grad-bright:linear-gradient(120deg,#3B82F6 0%,#2563EB 60%,#1D4ED8 100%);
  --grad-soft:linear-gradient(120deg,rgba(37,99,235,.14),rgba(29,78,216,.10));

  --radius:18px;--radius-sm:12px;--maxw:1180px;
  --ease:cubic-bezier(.22,.61,.36,1);--ease-out:cubic-bezier(.16,1,.3,1);

  --font-display:'Space Grotesk',sans-serif;
  --font-body:'Inter',sans-serif;
  --font-mono:'JetBrains Mono',ui-monospace,Consolas,monospace;
}

*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%;scroll-padding-top:90px}
body{
  font-family:var(--font-body);background:var(--ink-800);color:var(--text);
  line-height:1.62;overflow-x:hidden;-webkit-font-smoothing:antialiased;text-rendering:optimizeLegibility;
}
body::before{
  content:"";position:fixed;inset:0;z-index:-2;pointer-events:none;
  background:
    radial-gradient(900px 620px at 80% -10%, rgba(37,99,235,.16), transparent 60%),
    radial-gradient(760px 680px at 6% 8%, rgba(29,78,216,.12), transparent 56%),
    radial-gradient(1000px 820px at 50% 122%, color-mix(in srgb,var(--iiat-accent) 6%,transparent), transparent 60%),
    linear-gradient(180deg,var(--ink-800),var(--ink-700) 60%, var(--ink-800));
}
body::after{
  content:"";position:fixed;inset:0;z-index:-1;pointer-events:none;opacity:.38;
  background-image:linear-gradient(rgba(120,150,200,.04) 1px,transparent 1px),linear-gradient(90deg,rgba(120,150,200,.04) 1px,transparent 1px);
  background-size:58px 58px;
  -webkit-mask-image:radial-gradient(closest-side at 50% 28%,black,transparent 92%);
          mask-image:radial-gradient(closest-side at 50% 28%,black,transparent 92%);
}
a{color:inherit;text-decoration:none}
img,svg,canvas{display:block;max-width:100%}
::selection{background:rgba(37,99,235,.42);color:#fff}
:focus-visible{outline:2px solid var(--accent);outline-offset:3px}
.ii-sr{position:absolute!important;width:1px;height:1px;margin:-1px;padding:0;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap;border:0}

.ii-wrap{max-width:var(--maxw);margin:0 auto;padding:0 24px}

.ii-eyebrow{font-family:var(--font-mono);font-size:.78rem;letter-spacing:.03em;color:var(--accent);display:inline-flex;align-items:center;gap:.5em}
.ii-eyebrow::before{content:"//";color:var(--blue-300);font-weight:500}

h1,h2,h3{font-family:var(--font-display);font-weight:600;line-height:1.08;letter-spacing:-.02em}
b,strong{font-weight:600}
.ii-grad{background:var(--grad-bright);-webkit-background-clip:text;background-clip:text;color:transparent}

.ii-logo-badge{width:40px;height:40px;flex:none;border-radius:11px;background:#fff;display:grid;place-items:center;padding:5px;
  box-shadow:0 4px 18px -6px rgba(37,99,235,.5),0 0 0 1px rgba(255,255,255,.10);transition:box-shadow .4s var(--ease)}
.ii-logo-badge img{width:100%;height:100%;object-fit:contain}

/* ============================================================
   NAV — fixe, sombre sur le héros, BLANC FRANC au scroll
   ============================================================ */
.ii-nav-progress{position:fixed;top:0;left:0;height:2px;width:0;z-index:60;background:var(--grad-bright);box-shadow:0 0 12px color-mix(in srgb,var(--iiat-accent) 60%,transparent);transition:width .12s linear}
.ii-nav{position:fixed;top:0;left:0;right:0;z-index:50;border-bottom:1px solid transparent;
  transition:background .22s ease,border-color .22s ease,box-shadow .22s ease,color .22s ease}
.ii-nav-line{position:absolute;left:0;bottom:-1px;height:1px;width:100%;pointer-events:none;
  background:linear-gradient(90deg,transparent,color-mix(in srgb,var(--iiat-accent) 0%,transparent) 12%,color-mix(in srgb,var(--iiat-accent) 55%,transparent) 50%,color-mix(in srgb,var(--iiat-accent) 0%,transparent) 88%,transparent);
  opacity:0;transform:scaleX(.6);transition:opacity .4s,transform .6s var(--ease)}
.ii-nav.scrolled .ii-nav-line{opacity:.9;transform:scaleX(1)}
.ii-nav-in{display:flex;align-items:center;gap:18px;height:74px}
.ii-brand{display:flex;align-items:center;gap:12px;font-family:var(--font-display);font-weight:600;font-size:1.06rem;letter-spacing:-.01em;color:var(--text);flex:none}
.ii-brand small{display:block;font-family:var(--font-mono);font-weight:400;font-size:.62rem;color:var(--text-mute);letter-spacing:.05em;margin-top:1px}
.ii-nav-links{list-style:none;display:flex;align-items:center;gap:2px;margin-left:8px;flex:1}
.ii-nav-link{display:inline-flex;align-items:center;font-family:var(--font-mono);font-size:.84rem;color:var(--text-dim);letter-spacing:.01em;
  padding:9px 14px;border-radius:10px;transition:color .2s,background .2s;white-space:nowrap}
.ii-nav-link:hover,.ii-nav-link[aria-current]{color:var(--text);background:rgba(255,255,255,.05)}
.ii-nav-link[aria-current]{box-shadow:inset 0 -2px 0 var(--accent)}
.ii-nav-cta{flex:none;display:inline-flex;align-items:center;gap:8px;font-family:var(--font-mono);font-size:.8rem;color:#fff;background:var(--grad-bright);
  border-radius:999px;padding:10px 18px;box-shadow:0 8px 26px -10px rgba(37,99,235,.7);transition:transform .3s var(--ease),box-shadow .3s}
.ii-nav-cta i{transition:transform .3s var(--ease)}
.ii-nav-cta:hover{transform:translateY(-2px);box-shadow:0 12px 34px -10px rgba(37,99,235,.85)}
.ii-nav-cta:hover i{transform:translateX(3px)}
.ii-nav.scrolled{background:#fff;border-bottom:1px solid rgba(15,23,42,.08);box-shadow:0 10px 30px -18px rgba(15,23,42,.35)}
.ii-nav.scrolled .ii-brand{color:#0B1525}
.ii-nav.scrolled .ii-brand small{color:#64748B}
.ii-nav.scrolled .ii-logo-badge{box-shadow:0 2px 10px -4px rgba(37,99,235,.35),0 0 0 1px rgba(15,23,42,.06)}
.ii-nav.scrolled .ii-nav-link{color:#475569}
.ii-nav.scrolled .ii-nav-link:hover,.ii-nav.scrolled .ii-nav-link[aria-current]{color:#0B1525;background:rgba(37,99,235,.07)}
.ii-nav.scrolled .ii-nav-link[aria-current]{box-shadow:inset 0 -2px 0 var(--blue)}
.ii-nav.scrolled .ii-nav-toggle{color:#0B1525}
.ii-nav-toggle{display:none;background:none;border:0;color:var(--text);font-size:1.55rem;cursor:pointer;line-height:1;flex:none;min-width:44px;min-height:44px}
.ii-nav-mobile{position:fixed;top:74px;left:0;right:0;z-index:49;max-height:calc(100vh - 74px);overflow:auto;
  background:rgba(8,16,31,.97);backdrop-filter:blur(18px);border-bottom:1px solid var(--line-strong);
  box-shadow:0 30px 60px -30px rgba(0,0,0,.85);padding:14px 0 26px}
.ii-nav-mobile[hidden]{display:none}
.ii-nav-mobile .ii-wrap{display:flex;flex-direction:column;gap:6px}
.ii-nav-mobile a{display:block;font-family:var(--font-mono);font-size:.92rem;color:var(--text);padding:14px 16px;border:1px solid var(--line);border-radius:12px;background:rgba(14,26,46,.5)}
.ii-nav-mobile a[aria-current]{border-color:color-mix(in srgb,var(--iiat-accent) 50%,transparent);color:var(--accent)}
.ii-nav-mobile .ii-nav-mobile-cta{margin-top:8px;display:flex;justify-content:center;align-items:center;gap:8px;color:#fff;background:var(--grad-bright);border:0;padding:14px;box-shadow:0 10px 28px -10px rgba(37,99,235,.7)}

/* ============================================================
   HÉROS — le seuil (poster CSS + réseau de nœuds en canvas)
   ============================================================ */
.ii-hero{position:relative;min-height:100vh;display:flex;align-items:center;padding:130px 0 90px;overflow:hidden}
.ii-hero--page{min-height:auto;padding:150px 0 96px}
.ii-hero-poster{position:absolute;inset:0;z-index:0;pointer-events:none;transition:opacity 1.1s var(--ease);
  background:radial-gradient(900px 620px at 80% -10%, rgba(37,99,235,.16), transparent 60%),
             radial-gradient(760px 680px at 6% 8%, rgba(29,78,216,.12), transparent 56%),
             radial-gradient(1000px 820px at 50% 122%, color-mix(in srgb,var(--iiat-accent) 6%,transparent), transparent 60%),
             linear-gradient(180deg,#08101F,#0B1525 60%,#08101F)}
.ii-neural{position:absolute;inset:0;width:100%;height:100%;z-index:1;pointer-events:none;opacity:0;transition:opacity 1.1s var(--ease)}
.ii-neural.is-live{opacity:1}
.ii-hero.anim-live .ii-hero-poster{opacity:.34}
.ii-hero-vignette{position:absolute;inset:0;z-index:2;pointer-events:none;background:radial-gradient(62% 56% at 32% 46%, transparent 38%, rgba(8,16,31,.6) 100%)}
.ii-hero-in{position:relative;z-index:3;display:grid;grid-template-columns:1.15fr .85fr;gap:48px;align-items:center;width:100%}
.ii-hero--page .ii-hero-in{grid-template-columns:1fr}
.ii-hero-copy{max-width:760px}
.ii-hero-slogan{font-size:clamp(2.3rem,5vw,4.1rem);margin:24px 0 0}
.ii-hero--page .ii-hero-slogan{font-size:clamp(2.1rem,4.8vw,3.7rem);margin-top:22px}
.ii-hero-slogan .ii-line{display:inline}
.ii-hero-slogan .ii-line > span{display:inline}
.ii-hero .ii-eyebrow{opacity:0;animation:ii-fade .8s var(--ease) .05s forwards}
.ii-hero-slogan,.ii-hero .ii-lede{opacity:0;animation:ii-fade .9s var(--ease) .3s forwards}
.ii-lede{font-size:clamp(1.05rem,1.6vw,1.24rem);color:var(--text-dim);max-width:640px;margin:28px 0 0}
.ii-hero--page .ii-lede{margin-top:24px}
@keyframes ii-fade{from{opacity:0;transform:translateY(14px)}to{opacity:1;transform:none}}
.ii-hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:38px;opacity:0;animation:ii-fade .9s var(--ease) .75s forwards}
.ii-hero-art{position:relative;z-index:3;opacity:0;animation:ii-fade 1.1s var(--ease) .7s forwards}
.ii-hero-art svg{width:100%;height:auto;overflow:visible;filter:drop-shadow(0 30px 60px rgba(37,99,235,.25))}
.ii-hero-art{max-width:420px;justify-self:center}
.ii-breadcrumb{position:relative;z-index:2;padding:90px 0 0;background:var(--ink-800)}
.ii-bc-list{display:flex;flex-wrap:wrap;gap:.5rem;align-items:center;list-style:none;font-family:var(--font-mono);font-size:.78rem}
.ii-bc-list a{color:var(--blue-300);transition:color .2s}
.ii-hero--page .ii-hero-poster{display:none}
.ii-bc-list a:hover{color:var(--accent)}
.ii-bc-sep{color:var(--text-mute)}
.ii-bc-current{color:var(--text-dim)}

/* ============================================================
   BOUTONS ET LIENS
   ============================================================ */
.ii-btn{display:inline-flex;align-items:center;justify-content:center;gap:10px;font-family:var(--font-body);font-weight:500;padding:14px 26px;border-radius:12px;font-size:1rem;cursor:pointer;
  border:1px solid transparent;min-height:48px;transition:transform .3s var(--ease),box-shadow .3s,background .3s,border-color .3s}
.ii-btn-primary{background:var(--grad-bright);color:#fff;box-shadow:0 10px 34px -10px rgba(37,99,235,.7)}
.ii-btn-primary:hover{transform:translateY(-3px);box-shadow:0 16px 44px -10px rgba(37,99,235,.8)}
.ii-btn-ghost{background:rgba(255,255,255,.025);border-color:var(--line-strong);color:var(--text)}
.ii-btn-ghost:hover{transform:translateY(-3px);border-color:color-mix(in srgb,var(--iiat-accent) 50%,transparent);background:color-mix(in srgb,var(--iiat-accent) 6%,transparent)}
.ii-btn i{transition:transform .3s var(--ease)}
.ii-btn:hover i.bi-arrow-right{transform:translateX(4px)}
.ii-btn:hover i.bi-arrow-down{transform:translateY(4px)}
.ii-btn-attente{cursor:not-allowed;border-style:dashed;opacity:.8}
.ii-btn-attente:hover{transform:none}
.ii-more{margin-top:24px;font-family:var(--font-mono);font-size:.82rem;color:var(--accent);display:inline-flex;align-items:center;gap:8px;align-self:flex-start;padding-block:6px}
.ii-more i{transition:transform .3s var(--ease)}
.ii-more:hover i{transform:translateX(4px)}
.ii-sec--light .ii-more{color:var(--blue-600)}

/* ============================================================
   SECTIONS — rythme sombre / claire / noire
   ============================================================ */
.ii-sec{position:relative;padding:clamp(72px,10vw,128px) 0}
.ii-sec-head{max-width:760px;margin-bottom:48px}
.ii-sec-head h2{font-size:clamp(1.9rem,4vw,3rem);margin-top:18px}
.ii-sec-head p{color:var(--text-dim);font-size:1.1rem;margin-top:20px;max-width:680px}
.ii-sec-foot{margin-top:44px}
.ii-sec-foot .ii-more{margin-top:0}

[data-reveal]{opacity:0;transform:translateY(34px);transition:opacity .9s var(--ease-out),transform .9s var(--ease-out)}
[data-reveal].in{opacity:1;transform:none}
[data-reveal][data-delay="1"]{transition-delay:.08s}
[data-reveal][data-delay="2"]{transition-delay:.16s}
[data-reveal][data-delay="3"]{transition-delay:.24s}
[data-reveal][data-delay="4"]{transition-delay:.32s}

.ii-sec--light{background:var(--light-bg);color:var(--light-text);border-top:1px solid var(--light-line-strong);border-bottom:1px solid var(--light-line-strong)}
.ii-sec--light::before{content:"";position:absolute;inset:0;z-index:0;pointer-events:none;opacity:.6;
  background-image:linear-gradient(rgba(15,27,45,.025) 1px,transparent 1px),linear-gradient(90deg,rgba(15,27,45,.025) 1px,transparent 1px);
  background-size:58px 58px;-webkit-mask-image:radial-gradient(closest-side at 50% 20%,black,transparent 88%);mask-image:radial-gradient(closest-side at 50% 20%,black,transparent 88%)}
.ii-sec--light > .ii-wrap{position:relative;z-index:1}
.ii-sec--light::after{content:"";position:absolute;top:-1px;left:0;right:0;height:2px;background:linear-gradient(90deg,transparent,rgba(37,99,235,.35),color-mix(in srgb,var(--iiat-accent) 50%,transparent),rgba(37,99,235,.35),transparent)}
.ii-sec--light .ii-eyebrow{color:var(--blue-600)}
.ii-sec--light .ii-eyebrow::before{color:var(--blue)}
.ii-sec--light .ii-sec-head p{color:var(--light-dim)}
.ii-sec--light .ii-grad{background:linear-gradient(120deg,#2563EB,#1D4ED8);-webkit-background-clip:text;background-clip:text;color:transparent}

.ii-sec--black{background:var(--black-bg);border-top:1px solid color-mix(in srgb,var(--iiat-accent) 18%,transparent);border-bottom:1px solid color-mix(in srgb,var(--iiat-accent) 10%,transparent)}
.ii-sec--black::before{content:"";position:absolute;inset:0;z-index:0;pointer-events:none;background:radial-gradient(60% 70% at 50% 0%,rgba(37,99,235,.10),transparent 60%),radial-gradient(40% 50% at 80% 100%,color-mix(in srgb,var(--iiat-accent) 6%,transparent),transparent 60%)}
.ii-sec--black > .ii-wrap{position:relative;z-index:1}
.ii-sec--black::after{content:"";position:absolute;top:-1px;left:0;right:0;height:2px;background:linear-gradient(90deg,transparent,color-mix(in srgb,var(--iiat-accent) 60%,transparent),transparent)}

/* texte éditorial */
.ii-statement{font-family:var(--font-display);font-size:clamp(1.3rem,2.8vw,2rem);font-weight:500;line-height:1.38;letter-spacing:-.015em;max-width:900px;color:var(--text-dim)}
.ii-statement b{color:var(--text)}
.ii-statement--grand{font-size:clamp(1.5rem,3.3vw,2.4rem)}
.ii-sec--light .ii-statement{color:var(--light-dim)}
.ii-sec--light .ii-statement b{color:var(--light-text)}
.ii-prose{max-width:680px;display:grid;gap:18px;font-size:1.08rem;color:var(--text-dim)}
.ii-prose b{color:var(--text)}
.ii-sec--light .ii-prose{color:var(--light-dim)}
.ii-sec--light .ii-prose b{color:var(--light-text)}
.ii-split{display:grid;grid-template-columns:.8fr 1.2fr;gap:clamp(30px,5vw,72px);align-items:start}
.ii-split .ii-sec-head{margin-bottom:0}
.ii-mention{margin-top:20px;font-family:var(--font-mono);font-size:.84rem;color:var(--light-mute)}
.ii-relation{display:grid;gap:6px}
.ii-relation .ii-hero-actions{opacity:1;animation:none;margin-top:30px}
.ii-note{margin-top:34px;color:var(--light-dim);font-size:.95rem;max-width:720px}

/* cartes (thème sombre par défaut, variante claire) */
.ii-grid{display:grid;gap:22px}
.ii-grid-3{grid-template-columns:repeat(3,1fr)}
.ii-grid-4{grid-template-columns:repeat(4,1fr)}
.ii-card{position:relative;border-radius:var(--radius);padding:32px 28px;overflow:hidden;display:flex;flex-direction:column;
  background:linear-gradient(180deg,rgba(14,26,46,.55),rgba(6,9,18,.6));border:1px solid var(--line);
  transition:transform .45s var(--ease),border-color .45s,box-shadow .45s,opacity .9s var(--ease-out)}
.ii-card::before{content:"";position:absolute;left:0;top:0;height:3px;width:100%;background:linear-gradient(90deg,var(--accent),transparent);transform:scaleX(0);transform-origin:left;transition:transform .55s var(--ease)}
.ii-card:hover{transform:translateY(-5px);border-color:color-mix(in srgb,var(--iiat-accent) 30%,transparent);box-shadow:0 36px 70px -34px rgba(0,0,0,.9)}
.ii-card:hover::before{transform:scaleX(1)}
.ii-card-ic{width:46px;height:46px;border-radius:12px;display:grid;place-items:center;font-size:1.2rem;margin-bottom:20px;flex:none;
  background:rgba(120,150,200,.06);border:1px solid var(--line-strong);color:var(--accent)}
.ii-card h3{font-size:1.2rem;margin-bottom:10px}
.ii-card p{color:var(--text-dim);font-size:.96rem}
.ii-card-num{position:absolute;top:26px;right:26px;font-family:var(--font-mono);font-size:.78rem;color:var(--text-mute)}
.ii-sec--light .ii-card{background:var(--light-surface);border-color:var(--light-line);box-shadow:0 18px 40px -30px rgba(15,27,45,.4)}
.ii-sec--light .ii-card::before{background:var(--grad-bright)}
.ii-sec--light .ii-card:hover{border-color:var(--light-line-strong);box-shadow:0 36px 64px -34px rgba(15,27,45,.28)}
.ii-sec--light .ii-card-ic{background:linear-gradient(135deg,rgba(37,99,235,.12),rgba(29,78,216,.08));border-color:var(--light-line-strong);color:var(--blue-600)}
.ii-sec--light .ii-card p{color:var(--light-dim)}
.ii-sec--light .ii-card-num{color:var(--light-mute)}

/* étapes de méthode */
.ii-steps{display:grid;grid-template-columns:repeat(4,1fr);gap:20px}
.ii-step{position:relative;padding:26px 24px;border-radius:var(--radius);
  background:linear-gradient(180deg,rgba(14,26,46,.55),rgba(6,9,18,.6));border:1px solid var(--line);
  transition:transform .45s var(--ease),border-color .45s,box-shadow .45s,opacity .9s var(--ease-out)}
.ii-step:hover{transform:translateY(-6px);border-color:color-mix(in srgb,var(--iiat-accent) 30%,transparent);box-shadow:0 36px 70px -34px rgba(0,0,0,.9)}
.ii-step-num{font-family:var(--font-mono);font-size:.78rem;color:var(--accent);display:block;margin-bottom:14px}
.ii-step .ii-card-ic{margin-bottom:16px}
.ii-step h3{font-size:1.15rem;margin-bottom:8px}
.ii-step p{font-size:.92rem;color:var(--text-dim)}
.ii-sec--light .ii-step{background:var(--light-surface);border-color:var(--light-line);box-shadow:0 18px 40px -30px rgba(15,27,45,.4)}
.ii-sec--light .ii-step:hover{border-color:var(--light-line-strong);box-shadow:0 36px 64px -34px rgba(15,27,45,.26)}
.ii-sec--light .ii-step-num{color:var(--blue)}
.ii-sec--light .ii-step .ii-card-ic{background:linear-gradient(135deg,rgba(37,99,235,.12),rgba(29,78,216,.07));border-color:var(--light-line-strong);color:var(--blue-600)}
.ii-sec--light .ii-step p{color:var(--light-dim)}

/* « ce qui change » : cinq pastilles */
.ii-tiles{list-style:none;display:grid;grid-template-columns:repeat(5,1fr);gap:16px}
.ii-tile{border-radius:var(--radius);padding:24px 20px;background:var(--light-surface);border:1px solid var(--light-line);box-shadow:0 18px 40px -30px rgba(15,27,45,.4);
  transition:transform .45s var(--ease),box-shadow .45s,opacity .9s var(--ease-out)}
.ii-tile:hover{transform:translateY(-5px);box-shadow:0 36px 64px -34px rgba(15,27,45,.28)}
.ii-tile .ii-card-ic{background:linear-gradient(135deg,rgba(37,99,235,.12),rgba(29,78,216,.08));border-color:var(--light-line-strong);color:var(--blue-600)}
.ii-tile p{color:var(--light-dim);font-size:.98rem}
.ii-tile b{color:var(--blue-600);font-family:var(--font-display);font-size:1.12rem}

/* exemple illustratif */
.ii-callout{position:relative;max-width:820px;border-radius:24px;overflow:hidden;padding:clamp(28px,4.5vw,46px);
  background:linear-gradient(135deg,rgba(37,99,235,.12),rgba(29,78,216,.06));border:1px solid var(--line-strong)}
.ii-callout::before{content:"";position:absolute;inset:0;pointer-events:none;background:radial-gradient(50% 100% at 0% 50%,color-mix(in srgb,var(--iiat-accent) 10%,transparent),transparent 55%)}
.ii-callout > *{position:relative}
.ii-tag{display:inline-flex;align-items:center;gap:8px;font-family:var(--font-mono);font-size:.74rem;color:var(--accent);margin-bottom:14px}
.ii-callout h3{font-size:clamp(1.3rem,2.4vw,1.7rem);margin-bottom:12px}
.ii-callout p{color:var(--text-dim);font-size:1.06rem}
.ii-callout p b{color:var(--text)}
.ii-sec--light .ii-callout{background:linear-gradient(135deg,rgba(37,99,235,.07),rgba(29,78,216,.04));border-color:var(--light-line-strong)}
.ii-sec--light .ii-tag{color:var(--blue-600)}
.ii-sec--light .ii-callout p{color:var(--light-dim)}
.ii-sec--light .ii-callout p b{color:var(--light-text)}

/* temps de collaboration (cartes) */
.ii-plans{display:grid;grid-template-columns:repeat(4,1fr);gap:20px}
.ii-plan{position:relative;border-radius:var(--radius);padding:30px 26px;display:flex;flex-direction:column;overflow:hidden;
  background:var(--light-surface);border:1px solid var(--light-line);box-shadow:0 18px 40px -30px rgba(15,27,45,.4);
  transition:transform .5s var(--ease),border-color .5s,box-shadow .5s,opacity .9s var(--ease-out)}
.ii-plan::after{content:"";position:absolute;left:0;top:0;height:3px;width:100%;background:var(--grad-bright);transform:scaleX(0);transform-origin:left;transition:transform .6s var(--ease)}
.ii-plan:hover{transform:translateY(-6px);border-color:var(--light-line-strong);box-shadow:0 40px 70px -34px rgba(15,27,45,.28)}
.ii-plan:hover::after{transform:scaleX(1)}
.ii-plan h3{font-size:1.4rem}
.ii-plan-rythme{color:var(--light-dim);margin-top:8px;font-size:.97rem}
.ii-plan-prix{font-family:var(--font-display);font-weight:600;font-size:1.6rem;letter-spacing:-.02em;margin-top:20px;color:var(--blue-600);line-height:1.1}
.ii-plan .ii-more{margin-top:auto;padding-top:22px;color:var(--blue-600)}
.ii-nope{list-style:none;display:grid;grid-template-columns:repeat(2,1fr);gap:14px 30px;max-width:900px}
.ii-nope li{display:flex;gap:14px;align-items:center;padding:16px 20px;border-radius:14px;border:1px solid var(--line);background:linear-gradient(180deg,rgba(14,26,46,.55),rgba(6,9,18,.6));color:var(--text-dim)}
.ii-nope i{color:var(--accent)}

/* fondateur / photo */
.ii-founder{display:grid;grid-template-columns:.85fr 1.15fr;gap:clamp(34px,5vw,64px);align-items:center}
.ii-photo-frame{position:relative;aspect-ratio:4/5;border-radius:22px;overflow:hidden;display:grid;place-items:center;
  background:linear-gradient(160deg,#EAF0FA,#F4F7FC);border:1px solid var(--light-line-strong);box-shadow:0 40px 80px -40px rgba(15,27,45,.4)}
.ii-sec--dark .ii-photo-frame,.ii-sec--black .ii-photo-frame{background:linear-gradient(160deg,#122036,#0B1525);border-color:var(--line-strong);box-shadow:0 40px 80px -40px rgba(0,0,0,.8)}
.ii-photo-frame::after{content:"";position:absolute;inset:10px;border-radius:16px;border:1px solid rgba(37,99,235,.25);pointer-events:none}
.ii-photo-logo{width:34%;aspect-ratio:1;border-radius:50%;background:#fff;display:grid;place-items:center;padding:7%;box-shadow:0 10px 40px -10px rgba(37,99,235,.5)}
.ii-photo-logo img{width:100%;height:100%;object-fit:contain}
.ii-photo figcaption{margin-top:18px;display:flex;flex-direction:column;gap:3px}
.ii-photo-name{font-family:var(--font-display);font-size:1.15rem;font-weight:600}
.ii-photo-role{font-family:var(--font-mono);font-size:.78rem;color:var(--text-mute)}
.ii-sec--light .ii-photo-role{color:var(--light-mute)}
.ii-founder-copy .ii-sec-head{margin-bottom:24px}

/* FAQ */
.ii-faq{max-width:860px;display:flex;flex-direction:column;gap:14px}
.ii-qa{border:1px solid var(--line-strong);border-radius:var(--radius);background:var(--surface);overflow:hidden;transition:border-color .3s var(--ease),background .3s}
.ii-qa[open]{border-color:color-mix(in srgb,var(--iiat-accent) 50%,transparent);background:var(--surface-2)}
.ii-qa summary{display:flex;align-items:center;justify-content:space-between;gap:18px;padding:22px 24px;cursor:pointer;list-style:none;font-family:var(--font-display);font-weight:600;font-size:1.08rem;color:var(--text);line-height:1.4}
.ii-qa summary::-webkit-details-marker{display:none}
.ii-qa summary:hover{color:var(--blue-200)}
.ii-qa-mark{flex:0 0 auto;color:var(--accent);font-size:1.1rem;transition:transform .3s var(--ease)}
.ii-qa[open] .ii-qa-mark{transform:rotate(45deg)}
.ii-qa-a{padding:0 24px 24px}
.ii-qa-a p{color:var(--text-dim);font-size:1.02rem}
.ii-sec--light .ii-qa{border-color:var(--light-line-strong);background:var(--light-surface)}
.ii-sec--light .ii-qa[open]{border-color:rgba(37,99,235,.4);background:var(--light-bg-2)}
.ii-sec--light .ii-qa summary{color:var(--light-text)}
.ii-sec--light .ii-qa summary:hover{color:var(--blue-600)}
.ii-sec--light .ii-qa-mark{color:var(--blue)}
.ii-sec--light .ii-qa-a p{color:var(--light-dim)}

/* coque + formulaire */
.ii-shell{position:relative;border-radius:28px;overflow:hidden;background:linear-gradient(150deg,rgba(37,99,235,.12),rgba(29,78,216,.08) 60%,rgba(30,58,138,.10));
  border:1px solid var(--line-strong);padding:clamp(32px,5.5vw,72px)}
.ii-shell::before{content:"";position:absolute;inset:0;pointer-events:none;background:radial-gradient(50% 70% at 100% 120%,color-mix(in srgb,var(--iiat-accent) 14%,transparent),transparent 60%)}
.ii-shell > *{position:relative}
.ii-contact{display:grid;grid-template-columns:1.25fr 1fr;gap:clamp(30px,5vw,64px);align-items:start}
.ii-form{position:relative;display:grid;gap:20px;max-width:680px}
.ii-form-aide{color:var(--text-mute);font-size:.88rem}
.ii-field label{display:block;font-size:.88rem;font-weight:500;color:var(--text);margin-bottom:8px}
.ii-req{color:var(--accent)}
.ii-opt{color:var(--text-mute);font-weight:400;font-family:var(--font-mono);font-size:.74rem;margin-left:6px}
.ii-form input[type="text"],.ii-form input[type="email"],.ii-form textarea,.ii-form select{width:100%;font-family:var(--font-body);font-size:.96rem;color:var(--text);
  background:rgba(8,16,31,.6);border:1px solid var(--line-strong);border-radius:12px;padding:13px 15px;min-height:48px;transition:border-color .25s,background .25s,box-shadow .25s}
.ii-form textarea{resize:vertical;min-height:140px}
.ii-form input:focus,.ii-form textarea:focus,.ii-form select:focus{outline:none;border-color:color-mix(in srgb,var(--iiat-accent) 55%,transparent);background:color-mix(in srgb,var(--iiat-accent) 4%,transparent);box-shadow:0 0 0 3px color-mix(in srgb,var(--iiat-accent) 10%,transparent)}
.ii-form select{appearance:none;-webkit-appearance:none;cursor:pointer;
  background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='16' height='16' fill='%236E7C9A' viewBox='0 0 16 16'%3E%3Cpath d='M4 6l4 4 4-4'/%3E%3C/svg%3E");
  background-repeat:no-repeat;background-position:right 14px center;padding-right:40px}
.ii-form select option{background:#0E1A2E;color:var(--text)}
.ii-consent{display:flex;gap:13px;align-items:flex-start;font-size:.88rem;color:var(--text-dim)}
.ii-consent input{width:20px;height:20px;margin-top:2px;accent-color:var(--blue);flex:none}
.ii-consent a{color:var(--accent);text-decoration:underline;text-underline-offset:2px}
.ii-form-envoi{justify-self:start;max-width:360px}
.he-formulaire-retour{padding:14px 18px;border-radius:12px;border:1px solid color-mix(in srgb,var(--iiat-accent) 50%,transparent);background:color-mix(in srgb,var(--iiat-accent) 8%,transparent);color:var(--text)}
.he-formulaire-retour--erreur{border-color:#f59e0b}
.ii-contact-side{display:grid;gap:22px}
.ii-side-block{display:grid;gap:10px;justify-items:start;border-radius:var(--radius);padding:24px;background:rgba(8,16,31,.4);border:1px solid var(--line-strong)}
.ii-side-block .ii-card-ic{margin-bottom:6px}
.ii-side-block h2{font-size:1.2rem}
.ii-side-block p{color:var(--text-dim);font-size:.96rem}
.ii-mail{font-family:var(--font-mono);color:var(--accent);border-bottom:1px solid color-mix(in srgb,var(--iiat-accent) 40%,transparent)}

/* bloc d'appel */
.ii-s-cta{text-align:center}
.ii-cta-shell{position:relative;max-width:880px;margin:0 auto;border-radius:28px;overflow:hidden;padding:clamp(40px,6vw,72px) clamp(24px,5vw,56px);
  background:linear-gradient(135deg,rgba(37,99,235,.10),rgba(29,78,216,.05));border:1px solid var(--line-strong)}
.ii-cta-shell::before{content:"";position:absolute;inset:0;pointer-events:none;background:radial-gradient(50% 70% at 50% 0%,color-mix(in srgb,var(--iiat-accent) 14%,transparent),transparent 60%)}
.ii-cta-shell > *{position:relative}
.ii-cta-shell .ii-eyebrow{justify-content:center}
.ii-cta-shell h2{font-size:clamp(1.9rem,4.2vw,2.9rem);margin:16px auto 0;max-width:20ch}
.ii-cta-lede{max-width:640px;margin:22px auto 0;color:var(--text-dim);font-size:1.08rem}
.ii-cta-actions{display:flex;flex-wrap:wrap;gap:14px;justify-content:center;margin-top:36px}
.ii-cta-mention{margin-top:24px;font-family:var(--font-mono);font-size:.84rem;color:var(--text-mute)}

/* pages légales */
.ii-legal{list-style:none;display:grid;gap:0;max-width:860px}
.ii-legal li{display:grid;grid-template-columns:minmax(10rem,.4fr) 1fr;gap:8px 32px;padding:22px 0;border-top:1px solid var(--light-line-strong)}
.ii-legal li:last-child{border-bottom:1px solid var(--light-line-strong)}
.ii-legal b{font-family:var(--font-display);font-size:1.05rem}
.ii-legal span{color:var(--light-dim)}
.ii-legal a{color:var(--blue-600);text-decoration:underline;text-underline-offset:2px}

/* ============================================================
   FOOTER
   ============================================================ */
.ii-footer{border-top:1px solid var(--line);padding:62px 0 50px;background:rgba(6,9,18,.5)}
.ii-foot-in{display:flex;justify-content:space-between;align-items:flex-start;gap:40px;flex-wrap:wrap}
.ii-foot-brand{max-width:360px}
.ii-foot-brand p{color:var(--text-mute);font-size:.9rem;margin-top:16px}
.ii-foot-cols{display:flex;gap:54px;flex-wrap:wrap}
.ii-foot-col{max-width:300px}
.ii-foot-col h2,.ii-foot-col h3{font-family:var(--font-mono);font-size:.72rem;font-weight:400;color:var(--text-mute);letter-spacing:.06em;margin-bottom:16px}
.ii-foot-col a{display:block;color:var(--text-dim);font-size:.92rem;margin-bottom:11px;transition:color .25s}
.ii-foot-col a:hover{color:var(--accent)}
.ii-foot-col b{color:var(--text)}
.ii-foot-bottom{margin-top:50px;padding-top:26px;border-top:1px solid var(--line);display:flex;justify-content:space-between;gap:18px;flex-wrap:wrap;font-family:var(--font-mono);font-size:.74rem;color:var(--text-mute)}

/* ============================================================
   RESPONSIVE
   ============================================================ */
@media(max-width:1080px){
  .ii-nav-links,.ii-nav-cta{display:none}
  .ii-nav-toggle{display:block}
  .ii-nav-in{justify-content:space-between}
  .ii-tiles{grid-template-columns:repeat(3,1fr)}
  .ii-grid-4,.ii-plans{grid-template-columns:repeat(2,1fr)}
  .ii-steps{grid-template-columns:repeat(2,1fr)}
}
@media(max-width:980px){
  .ii-hero-in{grid-template-columns:1fr}
  .ii-hero-art{display:none}
  .ii-split,.ii-founder,.ii-contact{grid-template-columns:1fr}
  .ii-split .ii-sec-head{margin-bottom:8px}
  .ii-founder .ii-photo{max-width:340px}
}
@media(max-width:920px){.ii-grid-3{grid-template-columns:1fr}}
@media(max-width:720px){
  .ii-hero{padding:110px 0 64px}
  .ii-hero--page{padding:118px 0 64px}
  .ii-tiles,.ii-grid-4,.ii-plans,.ii-steps,.ii-nope{grid-template-columns:1fr}
  .ii-legal li{grid-template-columns:1fr}
  .ii-qa summary{padding:18px}
  .ii-qa-a{padding:0 18px 20px}
  .ii-hero-actions .ii-btn,.ii-cta-actions .ii-btn{width:100%}
  .ii-form-envoi{max-width:none;width:100%}
}
/* sans JavaScript : le menu reste atteignable, les contenus restent visibles */
html:not(.ii-js) [data-reveal]{opacity:1;transform:none}
html:not(.ii-js) .ii-hero .ii-eyebrow,html:not(.ii-js) .ii-hero-slogan,html:not(.ii-js) .ii-hero .ii-lede,html:not(.ii-js) .ii-hero-actions,html:not(.ii-js) .ii-hero-art{opacity:1;animation:none}
@media(max-width:1080px){
  html:not(.ii-js) .ii-nav-in{height:auto;flex-wrap:wrap;padding-top:10px;padding-bottom:10px}
  html:not(.ii-js) .ii-nav-links{display:flex;flex-wrap:wrap;margin-left:0;flex-basis:100%}
  html:not(.ii-js) .ii-nav-toggle{display:none}
  html:not(.ii-js) .ii-nav{position:absolute}
}
@media(prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}
  *,*::before,*::after{animation:none!important;transition:none!important}
  [data-reveal]{opacity:1;transform:none}
  .ii-hero .ii-eyebrow,.ii-hero-slogan,.ii-hero .ii-lede,.ii-hero-actions,.ii-hero-art{opacity:1}
}

/* sommaire ancré (page-toc de la v3) et indice de défilement */
.ii-toc{position:sticky;top:74px;z-index:40;background:rgba(7,11,20,.82);backdrop-filter:blur(12px);border-bottom:1px solid var(--line)}
.ii-toc-in{display:flex;align-items:center;gap:18px;padding:11px 24px;flex-wrap:wrap}
.ii-toc-label{font-family:var(--font-mono);font-size:.72rem;letter-spacing:.04em;text-transform:uppercase;color:var(--blue-300);display:inline-flex;align-items:center;gap:7px;white-space:nowrap}
.ii-toc-links{list-style:none;display:flex;align-items:center;gap:4px;flex-wrap:wrap;flex:1}
.ii-toc-links a{font-size:.84rem;color:var(--text-dim);padding:6px 11px;border-radius:8px;transition:color .2s,background .2s;white-space:nowrap;display:inline-block}
.ii-toc-links a:hover{color:var(--text);background:var(--grad-soft)}
.ii-toc-cta{font-family:var(--font-mono);font-size:.78rem;color:#fff;background:var(--grad-bright);border-radius:999px;padding:8px 16px;display:inline-flex;align-items:center;gap:7px;white-space:nowrap;box-shadow:0 8px 24px -10px rgba(37,99,235,.7);transition:transform .15s}
.ii-toc-cta:hover{transform:translateY(-1px)}
@media(max-width:900px){.ii-toc{display:none}}
.ii-scroll-hint{position:absolute;bottom:30px;left:50%;transform:translateX(-50%);z-index:3;font-family:var(--font-mono);font-size:.68rem;color:var(--text-mute);letter-spacing:.1em;display:flex;flex-direction:column;align-items:center;gap:8px;opacity:0;animation:ii-fade 1s 1.4s forwards}
.ii-bar{width:1px;height:38px;background:linear-gradient(var(--accent),transparent);animation:ii-drop 1.8s infinite}
@keyframes ii-drop{0%{transform:scaleY(0);transform-origin:top}50%{transform:scaleY(1);transform-origin:top}50.1%{transform-origin:bottom}100%{transform:scaleY(0);transform-origin:bottom}}
@media(max-width:720px){.ii-scroll-hint{display:none}}
/* cycle en cinq temps */
.ii-steps--5{grid-template-columns:repeat(5,1fr)}
@media(max-width:1180px){.ii-steps--5{grid-template-columns:repeat(2,1fr)}}
@media(max-width:720px){.ii-steps--5{grid-template-columns:1fr}}
.ii-steps + .ii-statement{margin-top:44px}

/* confirmation d'envoi du formulaire (19/10) : message du moteur en tête de la page Contact */
.ii-retour{margin-top:28px;max-width:660px}
.ii-retour:empty{display:none}
.ii-retour .he-formulaire-retour{display:block;padding:18px 22px;font-size:1.05rem;line-height:1.55;border-width:2px;scroll-margin-top:96px}
.ii-retour .he-formulaire-retour--ok{background:color-mix(in srgb,var(--iiat-accent) 16%,#08101F);border-color:var(--iiat-accent)}
.ii-retour .he-formulaire-retour--ok::before{content:"\2713\00a0";font-weight:700;color:var(--iiat-accent)}
.ii-retour .he-formulaire-retour--erreur{background:rgba(245,158,11,.12);border-color:#f59e0b}
.ii-retour .he-formulaire-retour:focus{outline:3px solid var(--iiat-accent);outline-offset:3px}
.he-formulaire-reference{display:block;margin-top:6px;font-family:var(--font-mono);font-size:.85rem;opacity:.85}
/* photo du fondateur */
.ii-photo-frame>img{display:block;width:100%;height:100%;object-fit:cover}

/* V7 : respiration entre une introduction et une grille de cartes */
.ii-sec-head + .ii-prose + .ii-grid{margin-top:40px}

/* Formulaire v2 (21/10/2026) : groupes, aides, erreurs, information et mention Osez l'IA. */
.ii-groupe{border:0;margin:0;padding:0;min-width:0;display:grid;gap:18px}
.ii-groupe legend{padding:0;margin-bottom:4px;font-family:var(--font-mono);font-size:.74rem;letter-spacing:.12em;text-transform:uppercase;color:var(--accent)}
.ii-aide{margin:-2px 0 8px;font-size:.84rem;line-height:1.45;color:var(--text-mute)}
.ii-form--v2 input[type="text"],.ii-form--v2 input[type="email"],.ii-form--v2 textarea,.ii-form--v2 select{font-size:1rem}
.ii-form--v2 textarea{min-height:0;field-sizing:content}
.ii-form--v2 textarea[rows="2"]{min-height:4.2em}.ii-form--v2 textarea[rows="3"]{min-height:5.6em}
.ii-form--v2 textarea[rows="4"]{min-height:7em}.ii-form--v2 textarea[rows="5"]{min-height:8.4em}
.ii-champ-erreur{margin:6px 0 0;font-size:.86rem;color:#fbbf24}
.ii-form--v2 [aria-invalid="true"]{border-color:#f59e0b}
.ii-form-info{margin:0;font-size:.86rem;color:var(--text-dim)}
.ii-form-info a,.ii-form-osez a{color:var(--accent);text-decoration:underline;text-underline-offset:2px}
.ii-form-osez{margin:22px 0 0;max-width:680px;font-size:.8rem;line-height:1.5;color:var(--text-mute)}
.ii-retour--form{margin-top:0}
.ii-form-envoi[disabled]{opacity:.6;cursor:progress}

/* Audit SEO 22/10/2026 : contraste AA de la légende de la photo sur fond clair (4,43:1 -> 7,2:1). */
.ii-sec--light .ii-photo-role{color:var(--light-dim)}
/* Encadré rouge « Un point de départ » (31/10/2026, TEXTES-RESSOURCES-SECURITE § 1 bis) : bordure et titre rouges, texte foncé ; contraste AA mesuré dans les deux thèmes */
.ii-sec .ii-depart{margin:1.5rem 0;padding:1rem 1.25rem;border:2px solid #B42318;border-left-width:6px;border-radius:8px;background:#FFF5F5;color:#1A1F2B;text-align:left;font-size:1rem;line-height:1.6}
.ii-sec .ii-depart p{margin:0 0 .6rem;color:inherit}
.ii-sec .ii-depart p:last-child{margin-bottom:0}
.ii-sec .ii-depart .ii-depart__titre{color:#B42318;font-weight:700;font-size:1.05rem;letter-spacing:0;text-transform:none}
.ii-sec .ii-depart .ii-depart__citation{font-style:italic}
.ii-sec--dark .ii-depart,.ii-sec--black .ii-depart{background:#2B1114;color:#F5F7FA;border-color:#F97066}
.ii-sec--dark .ii-depart .ii-depart__titre,.ii-sec--black .ii-depart .ii-depart__titre{color:#FDA29B}