/* === Madel Data — light theme · production styles + premium motion === */
:root{
  --navy-950: #FFFFFF;
  --navy-900: #F8F8F5;
  --navy-800: #F1F1EC;
  --navy-700: #E5E5DE;
  --navy-600: #D0D0C7;
  --line: #E0E0D8;
  --line-strong: #C4C4BB;
  --cyan: #1E40AF;
  --cyan-soft: #3B82F6;
  --cyan-glow: rgba(30,64,175,.12);
  --ink: #111827;
  --ink-soft: #4B5563;
  --ink-dim: #9CA3AF;
  --bone: #111827;
  --mute: #E5E7EB;
  --ease-expo: cubic-bezier(0.16, 1, 0.3, 1);
  --ease-power3: cubic-bezier(0.65, 0, 0.35, 1);
}
*{box-sizing:border-box}
html{scroll-behavior:auto}
html,body{margin:0;padding:0;background:var(--navy-950);color:var(--ink);font-family:'Inter',ui-sans-serif,system-ui,sans-serif;-webkit-font-smoothing:antialiased;text-rendering:optimizeLegibility;overflow-x:hidden}
body{font-feature-settings:"ss01","cv11";line-height:1.55}
body.lenis-stop{overflow:hidden}
h1,h2,h3,h4,.display{font-family:'Space Grotesk','Inter',sans-serif;letter-spacing:-0.02em;font-weight:600;line-height:1.05;color:var(--ink)}
.mono{font-family:'JetBrains Mono',ui-monospace,Menlo,monospace}

/* Background */
.bg-grid{background:#FFFFFF}

.section-divider{
  height:1px;
  background:linear-gradient(90deg, transparent, rgba(0,0,0,.05) 20%, rgba(30,64,175,.2) 50%, rgba(0,0,0,.05) 80%, transparent);
}

/* Decorative orb */
.orb{position:absolute;border-radius:50%;filter:blur(100px);pointer-events:none;background:radial-gradient(circle, rgba(30,64,175,.15), transparent 70%);width:600px;height:400px}

/* ----- Custom Cursor ----- */
.cursor-ring{position:fixed;top:0;left:0;width:36px;height:36px;border-radius:50%;border:1px solid rgba(30,64,175,.35);pointer-events:none;z-index:9999;transform:translate3d(-50%,-50%,0);transition:width .35s var(--ease-expo), height .35s var(--ease-expo), background .25s, border-color .25s, opacity .2s;will-change:transform;backdrop-filter:invert(4%)}
.cursor-dot{position:fixed;top:0;left:0;width:4px;height:4px;border-radius:50%;background:var(--ink);pointer-events:none;z-index:10000;transform:translate3d(-50%,-50%,0);will-change:transform;opacity:.8}
.cursor-ring.hover{width:70px;height:70px;background:rgba(30,64,175,.06);border-color:var(--cyan)}
.cursor-ring.view{width:88px;height:88px;background:rgba(30,64,175,.9);border-color:var(--cyan)}
.cursor-ring.view::after{content:'Voir';position:absolute;inset:0;display:grid;place-items:center;color:#fff;font-family:'Space Grotesk',sans-serif;font-weight:600;font-size:13px;letter-spacing:.02em}
.cursor-ring.click{transform:translate3d(-50%,-50%,0) scale(.6)}
body.cursor-ready{cursor:none}
body.cursor-ready a,body.cursor-ready button,body.cursor-ready input,body.cursor-ready textarea,body.cursor-ready label{cursor:none}
@media (pointer: coarse){.cursor-ring,.cursor-dot{display:none}body.cursor-ready{cursor:auto}}

/* Navbar */
.nav{
  position:fixed;top:0;left:0;right:0;z-index:50;
  transition:background .35s ease, backdrop-filter .35s ease, border-color .35s ease;
  border-bottom:1px solid transparent;
}
.nav.scrolled{
  background:rgba(255,255,255,.88);
  backdrop-filter:saturate(140%) blur(16px);
  -webkit-backdrop-filter:saturate(140%) blur(16px);
  border-bottom-color:rgba(0,0,0,.06);
  box-shadow:0 1px 0 rgba(0,0,0,.04);
}
.nav a.link{color:var(--ink-soft);font-size:14px;font-weight:500;letter-spacing:.01em;position:relative;transition:color .2s}
.nav a.link:hover{color:var(--ink)}
.nav a.link::after{content:"";position:absolute;left:0;right:0;bottom:-6px;height:1px;background:linear-gradient(90deg,transparent,var(--cyan),transparent);transform:scaleX(0);transform-origin:center;transition:transform .25s ease}
.nav a.link:hover::after{transform:scaleX(1)}
.nav-logo img{transition:filter .35s var(--ease-expo), transform .35s var(--ease-expo)}
.nav-logo:hover img{filter:drop-shadow(0 0 8px rgba(30,64,175,.3))}

/* Buttons with liquid fill */
.btn{position:relative;display:inline-flex;align-items:center;gap:.55rem;padding:.85rem 1.25rem;border-radius:9px;font-weight:600;font-size:14px;letter-spacing:.01em;transition:transform .25s var(--ease-expo), box-shadow .35s var(--ease-expo), color .2s ease;will-change:transform;overflow:hidden;isolation:isolate}
.btn-primary{background:linear-gradient(180deg,#3B82F6,#1E40AF);color:#fff;box-shadow:0 1px 0 rgba(255,255,255,.2) inset, 0 8px 24px -8px rgba(30,64,175,.4), 0 0 0 1px rgba(30,64,175,.5)}
.btn-primary:hover{transform:translateY(-1px);box-shadow:0 1px 0 rgba(255,255,255,.3) inset, 0 14px 40px -10px rgba(30,64,175,.45), 0 0 0 1px rgba(30,64,175,.7), 0 0 24px rgba(30,64,175,.18)}
.btn-primary:active{transform:translateY(0)}
.btn-ghost{background:transparent;color:var(--ink);border:1.5px solid var(--line-strong);position:relative}
.btn-ghost::before{content:"";position:absolute;left:0;right:0;bottom:-100%;top:100%;background:linear-gradient(180deg, var(--cyan), var(--cyan-soft));z-index:-1;transition:top .55s var(--ease-expo), bottom .55s var(--ease-expo);border-radius:8px}
.btn-ghost:hover{color:#fff;border-color:transparent}
.btn-ghost:hover::before{top:0;bottom:0}
.btn .arrow{transition:transform .25s var(--ease-expo)}
.btn:hover .arrow{transform:translateX(4px)}

/* Hero */
.hero{position:relative;min-height:100vh;display:flex;flex-direction:column;justify-content:center;overflow:hidden;background:#FAFAF8}
#neural-canvas{position:absolute;inset:0;width:100%;height:100%;display:block;z-index:0}
.hero-vignette{position:absolute;inset:0;pointer-events:none;background:radial-gradient(ellipse at 50% 60%, transparent 0%, transparent 30%, rgba(250,250,248,.55) 68%, #FAFAF8 100%);z-index:1}
.hero-content{position:relative;z-index:2}
.eyebrow{display:inline-flex;align-items:center;gap:.55rem;padding:.4rem .75rem;border-radius:999px;border:1px solid rgba(30,64,175,.2);background:rgba(30,64,175,.06);color:var(--cyan);font-size:12px;letter-spacing:.08em;text-transform:uppercase;font-weight:500}
.eyebrow .dot{width:6px;height:6px;border-radius:50%;background:var(--cyan);box-shadow:0 0 8px rgba(30,64,175,.5)}
.hero h1{font-size:clamp(2.5rem,6.2vw,5.5rem);font-weight:600}
.hero h1 .accent{background:linear-gradient(180deg,var(--cyan) 0%,var(--cyan-soft) 100%);-webkit-background-clip:text;background-clip:text;color:transparent}

/* Word reveals */
.word-wrap{display:inline-block;overflow:hidden;vertical-align:bottom;line-height:1.05}
.word-inner{display:inline-block;transform:translateY(110%);will-change:transform,filter}
.char-wrap{display:inline-block;overflow:hidden}
.char-inner{display:inline-block;transform:translateY(110%);will-change:transform}

/* Tech ticker */
.ticker-mask{position:relative;overflow:hidden;mask-image:linear-gradient(90deg,transparent,#000 12%,#000 88%,transparent);-webkit-mask-image:linear-gradient(90deg,transparent,#000 12%,#000 88%,transparent)}
.ticker-track{display:flex;gap:3rem;animation:ticker 50s linear infinite;width:max-content}
@keyframes ticker{0%{transform:translateX(0)}100%{transform:translateX(-50%)}}
.tech-pill{display:inline-flex;align-items:center;gap:.5rem;color:var(--ink-dim);font-family:'JetBrains Mono',monospace;font-size:13px;letter-spacing:.02em;white-space:nowrap}
.tech-pill .bullet{width:5px;height:5px;border-radius:50%;background:rgba(30,64,175,.4)}

/* Service / product card */
.card{position:relative;background:#FFFFFF;border:1px solid var(--line);border-radius:16px;padding:1.75rem;transition:border-color .35s, box-shadow .45s var(--ease-expo);will-change:transform;overflow:hidden;box-shadow:0 1px 4px rgba(0,0,0,.04)}
.card::before{content:"";position:absolute;inset:0;border-radius:16px;padding:1px;background:linear-gradient(135deg,rgba(30,64,175,0),rgba(30,64,175,0));-webkit-mask:linear-gradient(#000 0 0) content-box, linear-gradient(#000 0 0);-webkit-mask-composite:xor;mask-composite:exclude;pointer-events:none;transition:background .45s var(--ease-expo)}
.card:hover{border-color:rgba(30,64,175,.25);box-shadow:0 20px 50px -20px rgba(30,64,175,.18), 0 4px 12px rgba(0,0,0,.06)}
.card:hover::before{background:linear-gradient(135deg,rgba(30,64,175,.4),rgba(30,64,175,0) 60%)}
.card .spotlight{position:absolute;pointer-events:none;width:380px;height:380px;border-radius:50%;background:radial-gradient(circle,rgba(30,64,175,.07),transparent 60%);opacity:0;transition:opacity .35s var(--ease-expo);left:0;top:0;transform:translate(-50%,-50%);will-change:transform,opacity}
.card:hover .spotlight{opacity:1}
.card-inner{position:relative;z-index:1;transform-style:preserve-3d}

.svc-icon{width:42px;height:42px;border-radius:10px;background:linear-gradient(180deg,rgba(30,64,175,.1),rgba(30,64,175,.04));border:1px solid rgba(30,64,175,.2);display:flex;align-items:center;justify-content:center;color:var(--cyan);transition:transform .45s var(--ease-expo), background .35s}
.card:hover .svc-icon{transform:translateZ(30px) rotate(-4deg);background:linear-gradient(180deg,rgba(30,64,175,.16),rgba(30,64,175,.07))}

/* Product card layout */
.product-card{display:grid;grid-template-columns:1.1fr .9fr;gap:0;overflow:hidden;padding:0;min-height:340px}
@media(max-width:880px){.product-card{grid-template-columns:1fr}}
.product-card .pc-body{padding:2rem}
.product-card .pc-visual{position:relative;background:linear-gradient(135deg,#0a1730 0%,#0a1f44 100%);border-left:1px solid rgba(255,255,255,.06);overflow:hidden}
@media(max-width:880px){.product-card .pc-visual{border-left:none;border-top:1px solid rgba(255,255,255,.06);min-height:200px}}
.tag{display:inline-flex;align-items:center;padding:.25rem .55rem;border-radius:6px;background:rgba(30,64,175,.07);border:1px solid rgba(30,64,175,.18);color:var(--cyan);font-family:'JetBrains Mono',monospace;font-size:11px;letter-spacing:.02em}

/* ===== HORIZONTAL PRODUCTS SECTION ===== */
.products-section{position:relative;background:transparent}
.products-pin{position:relative;height:100vh;width:100%;overflow:hidden}
.products-stage{position:absolute;inset:0;display:flex;align-items:center}
.products-track{display:flex;align-items:stretch;gap:1.5rem;padding:0 6vw;will-change:transform}
.products-intro{flex:0 0 38vw;max-width:520px;display:flex;flex-direction:column;justify-content:center;padding-right:2rem}
.products-track > article{flex:0 0 64vw;max-width:760px;min-height:560px}
@media(min-width:1100px){.products-track > article{flex:0 0 52vw}}
.products-progress{position:absolute;bottom:32px;left:50%;transform:translateX(-50%);display:flex;align-items:center;gap:14px;z-index:5}
.products-progress .pp-track{width:200px;height:2px;background:rgba(0,0,0,.1);border-radius:2px;overflow:hidden}
.products-progress .pp-fill{height:100%;width:0%;background:linear-gradient(90deg,var(--cyan-soft),var(--cyan));border-radius:2px}
.products-progress .pp-label{font-family:'JetBrains Mono',monospace;font-size:11px;letter-spacing:.15em;text-transform:uppercase;color:var(--ink-dim)}
@media(max-width:900px){
  .products-pin{height:auto;overflow:visible}
  .products-stage{position:relative;inset:auto;display:block}
  .products-track{flex-direction:column;padding:0 1.5rem;gap:1.25rem}
  .products-track > article{flex:1 1 auto;min-height:auto}
  .products-intro{flex:1 1 auto;max-width:none;padding:0 0 1rem}
  .products-progress{display:none}
}

/* Approach / steps with traced line */
.approach-grid{position:relative}
.approach-line-wrap{position:absolute;left:0;right:0;top:48px;height:2px;display:none;z-index:0;pointer-events:none}
@media(min-width:1024px){.approach-line-wrap{display:block}}
.approach-line-bg{position:absolute;inset:0;background:linear-gradient(90deg, transparent, rgba(0,0,0,.06) 8%, rgba(0,0,0,.06) 92%, transparent)}
.approach-line-fg{position:absolute;inset:0;width:0%;background:linear-gradient(90deg,var(--cyan-soft),var(--cyan));box-shadow:0 0 10px rgba(30,64,175,.35);will-change:width}
.step{position:relative;border:1px solid var(--line);border-radius:14px;padding:1.5rem;background:#fff;transition:border-color .45s var(--ease-expo), background .45s, transform .45s var(--ease-expo);z-index:1;box-shadow:0 1px 4px rgba(0,0,0,.04)}
.step .step-dot{position:absolute;top:-7px;left:24px;width:14px;height:14px;border-radius:50%;background:#fff;border:2px solid rgba(0,0,0,.12);transition:background .35s, border-color .35s, box-shadow .35s;z-index:2}
.step.active{border-color:rgba(30,64,175,.35);background:rgba(30,64,175,.03)}
.step.active .step-dot{background:var(--cyan);border-color:var(--cyan);box-shadow:0 0 0 4px rgba(30,64,175,.12), 0 0 14px rgba(30,64,175,.4)}
.step .num{font-family:'Space Grotesk',sans-serif;font-size:13px;font-weight:600;color:var(--cyan);letter-spacing:.18em}
.step h4{font-size:1.15rem;margin:.4rem 0 .55rem}

/* Stack pills grid */
.stack-grid{position:relative}
.stack-pill{position:relative;padding:.85rem 1rem;border-radius:10px;border:1px solid var(--line);background:#fff;font-family:'JetBrains Mono',monospace;font-size:13px;color:var(--ink-soft);display:flex;align-items:center;justify-content:space-between;gap:.5rem;transition:border-color .35s var(--ease-expo), color .35s, background .35s, transform .45s var(--ease-expo);will-change:transform;box-shadow:0 1px 3px rgba(0,0,0,.04)}
.stack-pill:hover{border-color:rgba(30,64,175,.4);color:var(--cyan);background:rgba(30,64,175,.04);z-index:2}
.stack-pill .cat{font-size:10px;letter-spacing:.12em;text-transform:uppercase;color:var(--ink-dim);opacity:0;transition:opacity .25s}
.stack-pill:hover .cat{opacity:1;color:var(--cyan-soft)}

/* KPI */
.kpi-num{font-family:'Space Grotesk',sans-serif;font-weight:600;font-size:clamp(2.5rem,5vw,4rem);letter-spacing:-.03em;background:linear-gradient(180deg,var(--ink) 0%, var(--cyan) 100%);-webkit-background-clip:text;background-clip:text;color:transparent;line-height:1}

/* Form */
.field{display:flex;flex-direction:column;gap:.45rem}
.field label{font-size:12px;letter-spacing:.08em;text-transform:uppercase;color:var(--ink-dim);font-weight:500}
.field input,.field textarea{background:#fff;border:1.5px solid var(--line);border-radius:10px;padding:.85rem 1rem;color:var(--ink);font-family:inherit;font-size:14px;transition:border-color .25s var(--ease-expo), background .25s, box-shadow .25s;outline:none}
.field input:focus,.field textarea:focus{border-color:rgba(30,64,175,.5);background:#fff;box-shadow:0 0 0 3px rgba(30,64,175,.08)}
.field textarea{resize:vertical;min-height:120px}
.topic-tag{cursor:pointer;transition:background .2s, border-color .2s, color .2s}
.topic-tag:has(input:checked){background:rgba(30,64,175,.15);border-color:var(--cyan);color:var(--cyan)}

/* Section transitions / SVG seam */
.seam{position:relative;height:80px;overflow:hidden;pointer-events:none}
.seam svg{position:absolute;inset:0;width:100%;height:100%}

/* Reveal helpers */
.reveal-up{opacity:0;transform:translateY(40px);will-change:transform,opacity}
.parallax-slow{will-change:transform}
.parallax-med{will-change:transform}

/* Footer stamp */
.stamp-watermark{position:absolute;right:-40px;bottom:-40px;width:280px;opacity:.04;filter:grayscale(1);pointer-events:none}

/* Mobile nav */
.mobile-menu{position:fixed;inset:0;background:rgba(255,255,255,.97);backdrop-filter:blur(20px);z-index:60;display:flex;flex-direction:column;padding:6rem 2rem 2rem;gap:1.5rem;transform:translateY(-100%);transition:transform .55s var(--ease-expo)}
.mobile-menu.open{transform:none}
.mobile-menu a{font-family:'Space Grotesk',sans-serif;font-size:2rem;color:var(--ink);font-weight:500}

/* Scrollbar */
::-webkit-scrollbar{width:10px;height:10px}
::-webkit-scrollbar-track{background:#F8F8F5}
::-webkit-scrollbar-thumb{background:#D0D0C7;border-radius:10px}
::-webkit-scrollbar-thumb:hover{background:#BCBCB3}

/* Selection */
::selection{background:rgba(30,64,175,.2);color:var(--ink)}

/* Subtle noise overlay */
.noise{position:fixed;inset:0;pointer-events:none;opacity:.012;z-index:1;background-image:url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' width='160' height='160'><filter id='n'><feTurbulence type='fractalNoise' baseFrequency='.9' numOctaves='2' stitchTiles='stitch'/></filter><rect width='100%' height='100%' filter='url(%23n)' opacity='.6'/></svg>")}

/* Reduced motion */
@media (prefers-reduced-motion: reduce){
  *,*::before,*::after{animation-duration:.01ms !important;animation-iteration-count:1 !important;transition-duration:.01ms !important}
  .reveal-up{opacity:1 !important;transform:none !important}
  .word-inner,.char-inner{transform:none !important}
  .cursor-ring,.cursor-dot{display:none !important}
  body.cursor-ready{cursor:auto !important}
  .ticker-track{animation:none !important}
  .products-pin{height:auto !important}
  .products-stage{position:relative !important;inset:auto !important}
  .products-track{flex-direction:column !important;padding:0 1.5rem !important}
  .products-track > article{flex:1 1 auto !important;min-height:auto !important}
}

/* ============ DOMAINES D'EXPERTISE ============ */
.expertise-svc-title{font-size:.8125rem;font-weight:500;color:var(--ink);line-height:1.3}
.expertise-svc-desc{font-size:.75rem;color:var(--ink-dim);margin-top:.1rem;line-height:1.4}