/* ==========================================================================
   Youmean — feuille de style principale
   Charte reprise du site Framer : Inter, noir #0e0e0e, accent bleu #2d46c5
   ========================================================================== */

:root{
  --ink:#0e0e0e;
  --ink-2:#444;
  --ink-3:#999;
  --accent:#2d46c5;
  --accent-soft:#e0fbfc;
  --bg:#fff;
  --bg-2:#f4f4f4;
  --line:#eee;
  --radius:16px;
  --radius-lg:28px;
  --wrap:1200px;
  --pad:clamp(20px,5vw,64px);
  --font:"Inter","Inter Placeholder",-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,sans-serif;
}

*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;background:var(--bg);color:var(--ink);
  font-family:var(--font);font-size:16px;line-height:1.55;
  font-feature-settings:"cv09" on,"cv03" on,"cv04" on,"cv11" on,"zero" on;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;height:auto;display:block}
a{color:inherit;text-decoration:none}
ul,ol{margin:0;padding:0;list-style:none}
h1,h2,h3,h4,p{margin:0}
button{font:inherit;color:inherit;background:none;border:0;cursor:pointer}
:focus-visible{outline:2px solid var(--accent);outline-offset:3px;border-radius:4px}
.wrap{max-width:var(--wrap);margin-inline:auto;padding-inline:var(--pad)}
.center{display:flex;justify-content:center}

/* ---------- Boutons ---------- */
.btn{
  display:inline-flex;align-items:center;gap:8px;
  padding:13px 26px;border-radius:999px;
  font-size:15px;font-weight:500;letter-spacing:-.01em;white-space:nowrap;
  transition:transform .18s ease,background .18s ease,color .18s ease;
}
.btn:hover{transform:translateY(-2px)}
.btn-dark{background:var(--ink);color:#fff}
.btn-dark:hover{background:var(--accent)}
.btn-accent{background:var(--accent);color:#fff}
.btn-accent:hover{background:var(--ink)}

/* ---------- En-tête ---------- */
.hdr{
  position:sticky;top:0;z-index:50;
  background:rgba(255,255,255,.82);backdrop-filter:blur(14px);
  border-bottom:1px solid transparent;transition:border-color .2s ease;
  padding-top:env(safe-area-inset-top,0px);
}
.hdr.is-stuck{border-bottom-color:var(--line)}
.hdr-in{
  max-width:1360px;margin-inline:auto;
  display:flex;align-items:center;gap:28px;
  padding:14px var(--pad);
}
.hdr-logo img{width:141px;height:auto}
.hdr-nav{margin-left:auto}
.hdr-nav > ul{display:flex;align-items:center;gap:4px}
.hdr-nav a,.hdr-nav button{
  display:inline-flex;align-items:center;gap:5px;
  padding:8px 12px;border-radius:10px;
  font-size:14.5px;font-weight:450;color:var(--ink-2);
  transition:color .15s ease,background .15s ease;
}
.hdr-nav a:hover,.hdr-nav button:hover{color:var(--ink);background:var(--bg-2)}
.hdr-nav a[aria-current="page"]{color:var(--ink);font-weight:550}
.has-sub{position:relative}
.sub{
  position:absolute;top:calc(100% + 8px);left:0;min-width:250px;
  background:#fff;border:1px solid var(--line);border-radius:14px;
  box-shadow:0 18px 40px rgba(0,0,0,.09);padding:8px;
  opacity:0;visibility:hidden;transform:translateY(-6px);
  transition:opacity .16s ease,transform .16s ease,visibility .16s;
}
.has-sub:hover .sub,.has-sub:focus-within .sub{opacity:1;visibility:visible;transform:none}
.sub a{display:block;width:100%;font-size:14px}
.hdr-cta{padding:11px 22px;font-size:14.5px}

/* burger + nav mobile */
.burger{display:none;flex-direction:column;gap:4px;padding:8px;margin-left:auto}
.burger span{display:block;width:22px;height:2px;background:var(--ink);border-radius:2px;transition:transform .2s ease,opacity .2s ease}
.burger[aria-expanded="true"] span:nth-child(1){transform:translateY(6px) rotate(45deg)}
.burger[aria-expanded="true"] span:nth-child(2){opacity:0}
.burger[aria-expanded="true"] span:nth-child(3){transform:translateY(-6px) rotate(-45deg)}
.mnav{padding:8px var(--pad) 28px;border-top:1px solid var(--line);background:#fff}
.mnav a{display:block;padding:11px 0;font-size:17px;font-weight:500}
.mnav-group > span{display:block;padding:16px 0 4px;font-size:12px;letter-spacing:.08em;text-transform:uppercase;color:var(--ink-3)}
.mnav-group a{padding-left:14px;font-size:15.5px;font-weight:450;color:var(--ink-2)}
.mnav .btn{margin-top:18px;width:100%;justify-content:center}
[hidden]{display:none!important}

/* ---------- Hero ---------- */
.hero{
  position:relative;
  display:flex;flex-direction:column;align-items:center;gap:22px;
  padding:clamp(56px,9vw,120px) var(--pad) clamp(34px,5vw,56px);
  text-align:center;
}
/* Pastille « Diagnostic maturité IA » : vignette flottante, lien vers l'app */
.hero-badge{
  position:absolute;top:42px;left:44px;z-index:2;
  width:120px;height:120px;border-radius:16px;overflow:hidden;
  transition:transform .22s ease,box-shadow .22s ease;
}
.hero-badge:hover{transform:scale(1.05) rotate(-3deg);box-shadow:0 14px 32px rgba(0,0,0,.16)}
.hero-badge img{width:100%;height:100%;object-fit:cover}

.hero h1{
  max-width:19ch;
  font-size:clamp(46px,9.2vw,100px);font-weight:600;
  letter-spacing:-.04em;line-height:1.06;
}
.hero h1 .ac{color:var(--accent)}
.hero-sub{
  max-width:30ch;
  font-size:clamp(19px,2.6vw,30px);font-weight:450;
  letter-spacing:-.02em;line-height:1.3;color:var(--ink-2);
}

/* ---------- Bandeau logos ---------- */
.logos{
  overflow:hidden;padding:24px 0 clamp(44px,6vw,80px);
  -webkit-mask-image:linear-gradient(90deg,transparent,#000 12%,#000 88%,transparent);
          mask-image:linear-gradient(90deg,transparent,#000 12%,#000 88%,transparent);
}
.logos-track{display:flex;align-items:center;gap:clamp(40px,6vw,80px);width:max-content;animation:slide 42s linear infinite}
.logos-track img{height:clamp(24px,3.4vw,38px);width:auto;opacity:.55;filter:grayscale(1);transition:opacity .2s ease,filter .2s ease}
.logos-track img:hover{opacity:1;filter:none}
@keyframes slide{to{transform:translateX(-50%)}}
@media (prefers-reduced-motion:reduce){.logos-track{animation:none}}

/* ---------- Titres de section ---------- */
.h2{
  font-size:clamp(31px,4.7vw,58px);font-weight:600;
  letter-spacing:-.035em;line-height:1.08;text-align:center;
  max-width:18ch;margin-inline:auto;
}
.h2-sub{
  margin-top:14px;text-align:center;
  font-size:clamp(17px,2vw,22px);font-weight:450;color:var(--ink-2);letter-spacing:-.015em;
}
section{padding-block:clamp(52px,7vw,104px)}

/* ---------- Carrousel pleine largeur ----------
   Une carte visible à la fois, ratio 1.78 (celui du site d'origine).
   La 1re carte porte le message, en blanc sur voile sombre.            */
.carousel{position:relative}
.carousel-track{
  display:flex;overflow-x:auto;scroll-snap-type:x mandatory;
  scrollbar-width:none;border-radius:var(--radius-lg);
}
.carousel-track::-webkit-scrollbar{display:none}
.slide{
  position:relative;flex:0 0 100%;margin:0;
  scroll-snap-align:center;scroll-snap-stop:always;
  aspect-ratio:1.7826;overflow:hidden;background:var(--bg-2);
}
.slide img{width:100%;height:100%;object-fit:cover;display:block}
a.slide img{transition:transform .5s ease}
a.slide:hover img{transform:scale(1.03)}

/* carte-message : voile sombre + texte centré */
.slide-cta::after{
  content:"";position:absolute;inset:0;background:rgba(13,13,13,.7);
}
.slide-txt{
  position:absolute;inset:0;z-index:1;
  display:flex;flex-direction:column;align-items:center;justify-content:center;
  gap:12px;padding:var(--pad);text-align:center;color:#fff;
}
.slide-txt h2{
  max-width:16ch;
  font-size:clamp(28px,4.4vw,58px);font-weight:600;
  letter-spacing:-.035em;line-height:1.06;
}
.slide-txt p{
  font-size:clamp(15px,1.9vw,22px);font-weight:450;
  letter-spacing:-.015em;color:rgba(255,255,255,.82);
}

/* flèches, posées sur la carte */
.car-btn{
  position:absolute;top:50%;translate:0 -50%;z-index:3;
  width:46px;height:46px;border-radius:50%;
  background:rgba(255,255,255,.92);backdrop-filter:blur(6px);
  border:1px solid rgba(0,0,0,.06);box-shadow:0 8px 24px rgba(0,0,0,.18);
  display:grid;place-items:center;font-size:17px;color:var(--ink);
  transition:background .18s ease,color .18s ease;
}
.car-btn:hover{background:var(--ink);color:#fff}
.car-btn.prev{left:18px}
.car-btn.next{right:18px}

/* pastilles de navigation */
.car-dots{
  position:absolute;left:50%;translate:-50% 0;bottom:18px;z-index:3;
  display:flex;gap:8px;
}
.car-dots button{
  width:8px;height:8px;padding:0;border-radius:50%;
  background:rgba(255,255,255,.45);transition:background .2s ease,width .2s ease;
}
.car-dots button[aria-selected="true"]{background:#fff;width:22px;border-radius:999px}

/* ---------- Expertises ---------- */
.expertises{background:var(--bg-2)}
.exp-grid{
  display:grid;gap:20px;margin-top:clamp(32px,4vw,52px);
  grid-template-columns:repeat(auto-fit,minmax(285px,1fr));
}
.exp-card{
  display:flex;flex-direction:column;gap:12px;
  padding:clamp(26px,3vw,38px);background:#fff;border-radius:var(--radius-lg);
  border:1px solid transparent;
  transition:transform .22s ease,box-shadow .22s ease,border-color .22s ease;
}
.exp-card:hover{transform:translateY(-4px);box-shadow:0 20px 44px rgba(0,0,0,.08);border-color:var(--line)}
/* 2 lignes réservées : les descriptifs des 3 cartes démarrent à la même hauteur */
.exp-card h3{
  font-size:clamp(21px,2.3vw,26px);font-weight:600;letter-spacing:-.025em;
  line-height:1.18;min-height:2.36em;
}
.exp-card p{color:var(--ink-2);font-size:15.5px}
.exp-more{margin-top:auto;padding-top:10px;display:inline-flex;align-items:center;gap:7px;color:var(--accent);font-size:14.5px;font-weight:500}
.exp-more svg{transition:transform .18s ease}
.exp-card:hover .exp-more svg{transform:translateX(3px)}
.expertises .center{margin-top:38px}

/* ---------- À propos ---------- */
.about-img{margin:clamp(30px,4vw,52px) auto 0;border-radius:var(--radius-lg);width:100%}
.stats{
  display:grid;grid-template-columns:repeat(auto-fit,minmax(160px,1fr));
  gap:20px;margin-top:clamp(32px,4vw,50px);
  padding:clamp(26px,3vw,38px);background:var(--bg-2);border-radius:var(--radius-lg);
}
.stat{display:flex;flex-direction:column;gap:4px;text-align:center}
.stat-v{font-size:clamp(36px,5vw,58px);font-weight:600;letter-spacing:-.04em;line-height:1;color:var(--accent)}
.stat-l{font-size:14.5px;color:var(--ink-2)}
.about-txt{
  max-width:62ch;margin:clamp(30px,4vw,46px) auto 0;text-align:center;
  font-size:clamp(16.5px,1.8vw,19px);color:var(--ink-2);
}
.engage{margin-top:clamp(56px,7vw,96px);text-align:center}
.engage h3{font-size:clamp(25px,3.2vw,38px);font-weight:600;letter-spacing:-.03em}
.engage > p{max-width:56ch;margin:14px auto 0;color:var(--ink-2)}
.steps{
  display:grid;grid-template-columns:repeat(auto-fit,minmax(215px,1fr));
  gap:20px;margin-top:clamp(32px,4vw,48px);text-align:left;
}
.steps li{padding:26px;border:1px solid var(--line);border-radius:var(--radius);background:#fff;transition:border-color .2s ease}
.steps li:hover{border-color:var(--accent)}
.step-n{display:block;font-size:13px;font-weight:600;color:var(--accent);letter-spacing:.04em}
.steps h4{margin-top:8px;font-size:19px;font-weight:600;letter-spacing:-.02em}
.steps p{margin-top:7px;font-size:14.5px;color:var(--ink-2)}
.engage .center{margin-top:38px}

/* ---------- Secteurs ---------- */
.secteurs{background:var(--ink);color:#fff}
.secteurs .h2{max-width:20ch}
.sec-grid{
  display:grid;gap:18px;margin-top:clamp(32px,4vw,52px);
  grid-template-columns:repeat(auto-fit,minmax(228px,1fr));
}
.sec-card{
  position:relative;display:flex;flex-direction:column;gap:11px;
  padding:clamp(26px,3vw,36px);border-radius:var(--radius-lg);
  background:linear-gradient(160deg,rgba(255,255,255,.09),rgba(255,255,255,.03));
  border:1px solid rgba(255,255,255,.1);
  transition:transform .22s ease,background .22s ease,border-color .22s ease;
}
.sec-card:hover{transform:translateY(-4px);border-color:var(--accent);background:linear-gradient(160deg,rgba(45,70,197,.35),rgba(45,70,197,.12))}
/* hauteur réservée à 2 lignes : les descriptifs des 4 cartes démarrent
   à la même hauteur, quelle que soit la longueur du titre */
.sec-card h3{
  font-size:clamp(20px,2.2vw,24px);font-weight:600;letter-spacing:-.025em;
  line-height:1.2;min-height:2.4em;
}
.sec-card p{font-size:15px;color:rgba(255,255,255,.72)}
.sec-arrow{margin-top:auto;padding-top:14px;font-size:19px;color:var(--accent-soft);transition:transform .2s ease}
.sec-card:hover .sec-arrow{transform:translateX(4px)}

/* ---------- Études de cas ---------- */
.cas-grid{
  display:grid;gap:22px;margin-top:clamp(32px,4vw,52px);
  grid-template-columns:repeat(auto-fit,minmax(290px,1fr));
}
.cas-card{display:flex;flex-direction:column;gap:14px}
.cas-img{overflow:hidden;border-radius:var(--radius-lg);background:var(--bg-2)}
.cas-img img{width:100%;aspect-ratio:3/2;object-fit:cover;transition:transform .4s ease}
.cas-card:hover .cas-img img{transform:scale(1.045)}
.cas-card h3{font-size:18.5px;font-weight:550;letter-spacing:-.02em;line-height:1.35}
.cas-card:hover h3{color:var(--accent)}

/* ---------- Pied de page ---------- */
.ftr{background:var(--bg-2);padding:clamp(52px,7vw,90px) var(--pad) calc(28px + env(safe-area-inset-bottom,0px))}
.ftr-cta{
  max-width:var(--wrap);margin-inline:auto;
  display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:24px;
  padding-bottom:clamp(38px,5vw,60px);border-bottom:1px solid #e2e2e2;
}
.ftr-cta p{font-size:clamp(23px,3.2vw,38px);font-weight:600;letter-spacing:-.03em;line-height:1.15;max-width:18ch}
.ftr-cols{
  max-width:var(--wrap);margin:clamp(38px,5vw,58px) auto 0;
  display:grid;gap:32px;grid-template-columns:repeat(auto-fit,minmax(190px,1fr));
}
.ftr-col h2{font-size:12px;font-weight:600;letter-spacing:.09em;color:var(--ink-3)}
.ftr-col ul{margin-top:14px;display:flex;flex-direction:column;gap:10px}
.ftr-col a{font-size:14.5px;color:var(--ink-2)}
.ftr-col a:hover{color:var(--accent)}
.ftr-btm{
  max-width:var(--wrap);margin:clamp(38px,5vw,58px) auto 0;
  display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:14px;
  padding-top:24px;border-top:1px solid #e2e2e2;
}
.ftr-btm p{font-size:13.5px;color:var(--ink-3)}

/* ---------- Apparition au scroll ---------- */
.js .fx{opacity:0;transform:translateY(22px);transition:opacity .6s ease,transform .6s ease}
.js .fx.in{opacity:1;transform:none}
@media (prefers-reduced-motion:reduce){.js .fx{opacity:1;transform:none;transition:none}}

/* ---------- Responsive ---------- */
@media (max-width:1080px){
  .hdr-nav,.hdr-cta{display:none}
  .burger{display:flex}
}
@media (max-width:1279px){
  /* en dessous de 1280px le titre s'élargit jusque sous la pastille flottante :
     on la replace dans le flux, centrée au-dessus. */
  .hero-badge{
    position:static;width:104px;height:104px;border-radius:15px;margin-bottom:-4px;
  }
}
@media (max-width:640px){
  .hero-badge{width:88px;height:88px;border-radius:13px}
}
@media (max-width:640px){
  .car-btn{width:38px;height:38px;font-size:15px}
  .car-btn.prev{left:10px}
  .car-btn.next{right:10px}
  .ftr-cta{flex-direction:column;align-items:flex-start}
}