:root{
    --violet:#9b4f97;
    --blue:#5f73a0;
    --red:#c24a54;
    --green:#5fa166;
    --violet-soft:#c98fc6;
    --blue-soft:#9aabd6;
    --red-soft:#e29097;
    --green-soft:#9bd1a3;
    --bg-2:#f4efe8;
    --ink:#2b2533;
    --muted:#6f6878;
    --muted-2:#9a93a4;
    --bg:#fbf9f5;
    --card:#ffffff;
    --line:rgba(43,37,51,.1);
    --line-2:rgba(43,37,51,.18);
    --grad:linear-gradient(115deg,var(--violet),var(--blue) 40%,var(--green) 72%,var(--red));
    --maxw:1180px;
    --disp:"Fraunces",serif;
    --body:"Hanken Grotesk",-apple-system,sans-serif;
  }
  *{margin:0;padding:0;box-sizing:border-box}
  html{scroll-behavior:smooth}
  body{font-family:var(--body);background:var(--bg);color:var(--ink);line-height:1.6;overflow-x:hidden;-webkit-font-smoothing:antialiased;position:relative}
  ::selection{background:var(--violet);color:#fff}
  h1,h2,h3,h4{font-family:var(--disp);font-weight:600;line-height:1.08;letter-spacing:-.015em}
  a{color:inherit;text-decoration:none}
  img{max-width:100%;display:block}
  .wrap{max-width:var(--maxw);margin:0 auto;padding:0 26px}
  .eyebrow{font-size:.74rem;letter-spacing:.24em;text-transform:uppercase;font-weight:700;color:var(--violet);display:inline-flex;align-items:center;gap:11px}
  .eyebrow::before{content:"";width:26px;height:2px;background:var(--grad);border-radius:2px}
  .grad-text{background:var(--grad);-webkit-background-clip:text;background-clip:text;color:transparent}

  /* couche papillons en fond */
  .butterflies{position:fixed;inset:0;z-index:0;pointer-events:none;overflow:hidden}
  .bfly{position:absolute;will-change:transform;animation:drift var(--dur,18s) ease-in-out infinite;animation-delay:var(--delay,0s)}
  @keyframes drift{
    0%{transform:translate(0,0) rotate(var(--r,0deg))}
    50%{transform:translate(var(--dx,20px),var(--dy,-26px)) rotate(calc(var(--r,0deg) + 10deg))}
    100%{transform:translate(0,0) rotate(var(--r,0deg))}
  }
  .page{position:relative;z-index:1}

  /* NAV */
  header{position:fixed;top:0;left:0;right:0;z-index:100;transition:.4s;padding:18px 0}
  header.scrolled{background:rgba(251,249,245,.82);backdrop-filter:blur(14px);border-bottom:1px solid var(--line);padding:11px 0}
  .nav{display:flex;align-items:center;justify-content:space-between;gap:20px}
  .brand img{height:46px;width:auto;transition:.4s}
  header.scrolled .brand img{height:38px}
  .nav-links{display:flex;gap:30px;align-items:center}
  .nav-links a{font-size:.95rem;font-weight:500;color:var(--muted);transition:.25s;position:relative}
  .nav-links a:hover{color:var(--ink)}
  .nav-links a::after{content:"";position:absolute;left:0;bottom:-5px;width:0;height:2px;background:var(--grad);transition:.3s}
  .nav-links a:hover::after{width:100%}
  .btn{display:inline-flex;align-items:center;gap:9px;padding:12px 24px;border-radius:100px;font-weight:600;font-size:.93rem;font-family:var(--body);cursor:pointer;border:none;transition:.3s;white-space:nowrap}
  .btn-grad{background:var(--grad);background-size:170% 170%;color:#fff;animation:gshift 8s ease infinite}
  .btn-grad:hover{transform:translateY(-2px);box-shadow:0 14px 30px -10px rgba(155,79,151,.5)}
  @keyframes gshift{0%,100%{background-position:0% 50%}50%{background-position:100% 50%}}
  .btn-ghost{background:#fff;border:1.5px solid var(--line-2);color:var(--ink)}
  .btn-ghost:hover{border-color:var(--violet);color:var(--violet)}
  .burger{display:none;flex-direction:column;gap:5px;cursor:pointer;background:none;border:none}
  .burger span{width:26px;height:2.5px;background:var(--ink);border-radius:3px}

  /* HERO */
  .hero{padding:165px 0 90px;position:relative}
  .hero-grid{display:grid;grid-template-columns:1.1fr .9fr;gap:50px;align-items:center}
  .hero h1{font-size:clamp(2.7rem,6vw,4.8rem);font-weight:600}
  .hero h1 .it{font-style:italic;font-weight:400;color:var(--violet)}
  .hero p.lead{font-size:1.2rem;color:var(--muted);max-width:520px;margin:24px 0 34px}
  .hero-cta{display:flex;gap:14px;flex-wrap:wrap}
  .hero-art{position:relative;display:grid;place-items:center;min-height:340px}
  .hero-art .halo{position:absolute;width:340px;height:340px;border-radius:50%;background:var(--grad);filter:blur(60px);opacity:.28}
  .hero-art .big-bfly{position:relative;width:300px;height:300px;animation:bob 6s ease-in-out infinite}
  @keyframes bob{0%,100%{transform:translateY(0) rotate(-3deg)}50%{transform:translateY(-18px) rotate(3deg)}}
  .stats{display:flex;gap:36px;margin-top:50px;flex-wrap:wrap}
  .stat strong{font-family:var(--disp);font-size:2.4rem;color:var(--ink);display:block;line-height:1}
  .stat span{font-size:.84rem;color:var(--muted);text-transform:uppercase;letter-spacing:.08em}

  /* SECTION base */
  .pad{padding:100px 0}
  .sec-head{max-width:680px;margin-bottom:52px}
  .sec-head h2{font-size:clamp(2rem,4.4vw,3.2rem);margin-top:16px}
  .sec-head p{color:var(--muted);font-size:1.1rem;margin-top:16px}

  /* SERVICES */
  .svc-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:22px}
  .svc{background:var(--card);border:1px solid var(--line);border-radius:22px;padding:36px;transition:.4s cubic-bezier(.2,.8,.2,1);position:relative;overflow:hidden}
  .svc::before{content:"";position:absolute;top:0;left:0;right:0;height:4px;background:var(--c,var(--violet))}
  .svc:hover{transform:translateY(-8px);box-shadow:0 28px 50px -28px rgba(43,37,51,.35)}
  .svc .ico{width:56px;height:56px;border-radius:15px;display:grid;place-items:center;color:#fff;background:var(--c,var(--violet));margin-bottom:18px}
  .svc h3{font-size:1.5rem;margin-bottom:10px}
  .svc ul{list-style:none;display:flex;flex-direction:column;gap:8px;margin-top:10px}
  .svc li{color:var(--muted);font-size:.96rem;padding-left:20px;position:relative}
  .svc li::before{content:"";position:absolute;left:0;top:.6em;width:7px;height:7px;border-radius:50%;background:var(--c,var(--violet))}

  /* AI */
  .ai{position:relative}
  .ai-card{background:var(--card);border:1px solid var(--line);border-radius:28px;padding:54px;position:relative;overflow:hidden}
  .ai-card::before{content:"";position:absolute;width:360px;height:360px;border-radius:50%;background:var(--grad);filter:blur(80px);opacity:.16;top:-120px;right:-100px}
  .ai-grid{display:grid;grid-template-columns:1fr 1fr;gap:48px;align-items:center;position:relative;z-index:1}
  .ai h2{font-size:clamp(1.9rem,4vw,2.9rem);margin:14px 0 16px}
  .ai .lead{color:var(--muted);font-size:1.08rem;max-width:460px}
  .ai-feats{display:flex;flex-direction:column;gap:14px;margin:26px 0 28px}
  .ai-feat{display:flex;gap:13px;align-items:flex-start}
  .ai-feat .chk{width:30px;height:30px;border-radius:9px;background:rgba(155,79,151,.13);color:var(--violet);display:grid;place-items:center;flex-shrink:0;font-weight:700}
  .ai-feat b{font-family:var(--disp);font-weight:600}
  .ai-feat span{display:block;color:var(--muted);font-size:.9rem;margin-top:2px}
  .tags{display:flex;gap:8px;flex-wrap:wrap}
  .tag{font-size:.78rem;padding:7px 14px;border-radius:100px;background:var(--bg-2);border:1px solid var(--line);color:var(--muted);font-weight:600}
  /* chat demo */
  .chat{background:#fff;border:1px solid var(--line);border-radius:22px;overflow:hidden;box-shadow:0 30px 60px -30px rgba(43,37,51,.4)}
  .chat-top{padding:16px 20px;display:flex;align-items:center;gap:12px;background:var(--grad)}
  .chat-top .av{width:40px;height:40px;border-radius:50%;background:rgba(255,255,255,.25);display:grid;place-items:center;flex-shrink:0;padding:6px}
  .chat-top .nm{font-family:var(--disp);font-weight:600;font-size:.98rem;color:#fff}
  .chat-top .on{font-size:.76rem;color:rgba(255,255,255,.85);display:flex;align-items:center;gap:6px}
  .chat-top .on::before{content:"";width:7px;height:7px;border-radius:50%;background:#fff}
  .chat-body{padding:20px;display:flex;flex-direction:column;gap:12px;min-height:280px;background:var(--bg)}
  .msg{max-width:82%;padding:12px 15px;border-radius:15px;font-size:.92rem;line-height:1.5;opacity:0;transform:translateY(10px);animation:pop .5s forwards}
  .msg.bot{background:#fff;border:1px solid var(--line);border-bottom-left-radius:5px;align-self:flex-start}
  .msg.user{background:var(--violet);color:#fff;border-bottom-right-radius:5px;align-self:flex-end}
  .msg.brief{align-self:stretch;max-width:100%;background:rgba(95,161,102,.1);border:1.5px dashed var(--green)}
  .msg.brief b{font-family:var(--disp)}
  .msg.brief small{display:block;color:var(--muted);margin-top:5px;font-size:.82rem}
  @keyframes pop{to{opacity:1;transform:none}}
  .chat-input{display:flex;gap:10px;padding:14px 16px;border-top:1px solid var(--line);background:#fff}
  .chat-input input{flex:1;border:none;outline:none;background:transparent;font-family:var(--body);font-size:.92rem}
  .chat-input button{width:40px;height:40px;border-radius:50%;background:var(--grad);border:none;cursor:pointer;flex-shrink:0;display:grid;place-items:center}

  /* REALISATIONS */
  .real-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:18px}
  .real{border:1px solid var(--line);border-radius:18px;padding:26px 30px;background:var(--card);display:flex;align-items:center;justify-content:space-between;transition:.35s}
  .real:hover{transform:translateY(-5px);box-shadow:0 22px 40px -26px rgba(43,37,51,.35)}
  .real .rn{font-family:var(--disp);font-size:1.3rem;font-weight:600}
  .real .rt{color:var(--muted);font-size:.82rem;text-transform:uppercase;letter-spacing:.1em;margin-top:3px}
  .real .arrow{width:42px;height:42px;border-radius:50%;border:1px solid var(--line-2);display:grid;place-items:center;color:var(--muted);transition:.3s;flex-shrink:0}
  .real:hover .arrow{background:var(--grad);color:#fff;border-color:transparent}

  /* METHODE */
  .proc-wrap{background:var(--bg-2);border-radius:28px;padding:64px 48px;position:relative;overflow:hidden}
  .steps{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;margin-top:46px}
  .step{position:relative}
  .step .n{font-family:var(--disp);width:48px;height:48px;border-radius:14px;background:var(--grad);color:#fff;display:grid;place-items:center;font-weight:600;margin-bottom:20px;font-size:1.2rem}
  .step h3{font-size:1.32rem;margin-bottom:10px}
  .step p{color:var(--muted);font-size:.98rem}
  .step a{color:var(--violet);font-weight:600}

  /* CONTACT */
  .contact-grid{display:grid;grid-template-columns:1fr 1fr;gap:50px}
  .contact-info h2{font-size:clamp(2rem,4vw,3rem);margin:14px 0 22px}
  .info-row{display:flex;align-items:center;gap:15px;padding:15px 0;border-bottom:1px solid var(--line)}
  .info-row .ico{width:46px;height:46px;border-radius:12px;color:#fff;display:grid;place-items:center;flex-shrink:0}
  .info-row b{display:block;font-family:var(--disp)}
  .info-row span{color:var(--muted);font-size:.93rem}
  .contact-card{background:var(--card);border:1px solid var(--line);border-radius:22px;padding:40px}
  .field{margin-bottom:18px}
  .field label{display:block;font-size:.8rem;font-weight:700;text-transform:uppercase;letter-spacing:.08em;margin-bottom:7px;color:var(--muted)}
  .field input,.field textarea,.field select{width:100%;padding:13px 15px;border:1.5px solid var(--line);border-radius:12px;font-family:var(--body);font-size:.96rem;background:#fff;outline:none;transition:.25s;resize:vertical}
  .field input:focus,.field textarea:focus,.field select:focus{border-color:var(--violet)}

  /* FOOTER */
  footer{border-top:1px solid var(--line);padding:60px 0 28px;margin-top:40px}
  .foot-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr;gap:38px;padding-bottom:42px;border-bottom:1px solid var(--line)}
  .foot-grid h4{font-size:.74rem;text-transform:uppercase;letter-spacing:.16em;color:var(--muted-2);margin-bottom:16px;font-family:var(--body);font-weight:700}
  .foot-grid a,.foot-grid p{color:var(--muted);font-size:.95rem;display:block;margin-bottom:9px;transition:.25s}
  .foot-grid a:hover{color:var(--violet)}
  .foot-brand img{height:48px;margin-bottom:16px}
  .foot-bottom{padding-top:22px;display:flex;justify-content:space-between;flex-wrap:wrap;gap:12px;font-size:.85rem;color:var(--muted-2)}

  .reveal{opacity:0;transform:translateY(26px);transition:.8s cubic-bezier(.2,.8,.2,1)}
  .reveal.in{opacity:1;transform:none}

  @media(prefers-reduced-motion:reduce){.bfly,.big-bfly,.btn-grad{animation:none}}
  @media(max-width:900px){
    .nav-links{display:none}.burger{display:flex}
    .hero-grid,.ai-grid,.contact-grid{grid-template-columns:1fr;gap:38px}
    .svc-grid,.real-grid,.steps{grid-template-columns:1fr}
    .hero-art{min-height:240px}.hero-art .big-bfly{width:220px;height:220px}
    .foot-grid{grid-template-columns:1fr}
    .pad{padding:70px 0}.hero{padding:130px 0 60px}
    .proc-wrap,.ai-card{padding:36px 24px}
  }

  /* ===================== DYNAMISME ===================== */
  /* Barre de progression de lecture */
  .scrollbar{position:fixed;top:0;left:0;height:3px;width:0;z-index:200;background:var(--grad);background-size:200% 100%;animation:gshift 8s ease infinite;transition:width .1s linear}

  /* Entrées du hero, en cascade */
  .hero-in{opacity:0;transform:translateY(24px);animation:heroUp .9s cubic-bezier(.2,.8,.2,1) forwards;animation-delay:calc(var(--i,0) * .12s + .1s)}
  @keyframes heroUp{to{opacity:1;transform:none}}

  /* Dégradé animé sur les gros chiffres et titres accentués */
  .grad-text{background-size:220% 220%;animation:gshift 7s ease infinite}

  /* Mot qui tourne dans le titre */
  .rotator{display:inline-block;position:relative;transition:opacity .4s,transform .4s}
  .rotator.swap{opacity:0;transform:translateY(10px)}

  /* Boutons : relief + effet de brillance qui balaie */
  .btn{position:relative;overflow:hidden}
  .btn::after{content:"";position:absolute;top:0;left:-120%;width:60%;height:100%;
    background:linear-gradient(110deg,transparent,rgba(255,255,255,.5),transparent);
    transform:skewX(-18deg);transition:left .6s ease}
  .btn:hover::after{left:140%}
  .btn:active{transform:translateY(1px) scale(.99)}
  .btn-ghost::after{background:linear-gradient(110deg,transparent,rgba(155,79,151,.18),transparent)}

  /* Lien CTA avec flèche : on ajoute une flèche animée */
  .btn-grad,.btn-ghost{transition:transform .3s,box-shadow .3s,color .3s,border-color .3s}

  /* Cartes services : icône qui s'anime + barre du haut qui se remplit */
  .svc .ico{transition:transform .45s cubic-bezier(.2,.8,.2,1),box-shadow .4s}
  .svc:hover .ico{transform:translateY(-4px) rotate(-6deg) scale(1.06);box-shadow:0 14px 26px -12px var(--c,var(--violet))}
  .svc::before{transform:scaleX(0);transform-origin:left;transition:transform .5s ease}
  .svc:hover::before{transform:scaleX(1)}
  .svc h3,.svc .ico,.svc li{transition:color .3s}
  .svc:hover h3{color:var(--c,var(--violet))}

  /* Réalisations : flèche qui glisse */
  .real .arrow{transition:transform .3s,background .3s,color .3s,border-color .3s}
  .real:hover .arrow{transform:translate(3px,-3px)}

  /* Liens de nav : déjà soulignés ; on ajoute un léger lift */
  .nav-links a{transition:color .25s,transform .25s}
  .nav-links a:hover{transform:translateY(-2px)}

  /* Bande défilante (marquee) */
  .marquee{border-top:1px solid var(--line);border-bottom:1px solid var(--line);background:var(--bg-2);overflow:hidden;padding:16px 0}
  .marquee-track{display:flex;gap:40px;width:max-content;animation:slide 28s linear infinite}
  .marquee:hover .marquee-track{animation-play-state:paused}
  .marquee span{font-family:var(--disp);font-size:1.15rem;font-weight:600;color:var(--muted);display:inline-flex;align-items:center;gap:40px;white-space:nowrap}
  .marquee span::after{content:"✦";background:var(--grad);-webkit-background-clip:text;background-clip:text;color:transparent}
  @keyframes slide{to{transform:translateX(-50%)}}

  /* Carte AI : flotte doucement */
  .ai-card{transition:transform .5s ease}
  .ai-card:hover{transform:translateY(-4px)}

  /* Survol des messages de démo */
  .reveal{will-change:opacity,transform}

  @media(prefers-reduced-motion:reduce){
    .hero-in,.grad-text,.scrollbar,.marquee-track,.btn::after,.big-bfly{animation:none!important}
    .hero-in{opacity:1;transform:none}
  }

/* Lien Découvrir sur les cartes de services */
.svc-link{color:inherit;text-decoration:none;display:inline-block}
.svc-link::after{content:" →";color:var(--c,var(--violet));opacity:0;transition:.3s}
.svc:hover .svc-link::after{opacity:1}
.svc-more{display:inline-flex;align-items:center;gap:6px;margin-top:18px;font-weight:600;color:var(--c,var(--violet))}
.page-hero{padding:160px 0 40px}
.page-hero h1{font-size:clamp(2.2rem,5vw,3.6rem);max-width:18ch}
.page-hero .lead{font-size:1.18rem;color:var(--muted);max-width:60ch;margin-top:18px}
.prose{max-width:760px}
.prose p{color:var(--muted);font-size:1.06rem;margin-bottom:16px}
.prose h2{font-size:1.7rem;margin:36px 0 14px}
.feature-list{list-style:none;display:grid;grid-template-columns:repeat(2,1fr);gap:12px;margin:18px 0 8px}
.feature-list li{padding-left:24px;position:relative;color:var(--ink)}
.feature-list li::before{content:'';position:absolute;left:0;top:.55em;width:8px;height:8px;border-radius:50%;background:var(--c,var(--violet))}
@media(max-width:700px){.feature-list{grid-template-columns:1fr}}
.breadcrumb{font-size:.85rem;color:var(--muted-2);margin-bottom:8px}
.breadcrumb a{color:var(--muted)}
.other-services{display:flex;gap:10px;flex-wrap:wrap;margin-top:14px}
.chip-link{padding:9px 16px;border:1px solid var(--line-2);border-radius:100px;font-weight:600;font-size:.9rem;transition:.25s}
.chip-link:hover{border-color:var(--violet);color:var(--violet)}

/* Formulaire de contact : confirmation et erreurs */
.form-ok{background:rgba(95,161,102,.12);border:1px solid var(--green);color:var(--ink);padding:13px 15px;border-radius:12px;margin-bottom:18px;font-size:.93rem}
.err{color:var(--red);font-size:.82rem;display:block;margin-top:6px}
.field input:invalid:not(:placeholder-shown){border-color:var(--red)}

/* ===== Popup de confirmation d'envoi ===== */
.wr-popup{position:fixed;inset:0;z-index:10000;display:grid;place-items:center;padding:20px;
  background:rgba(20,16,28,.45);backdrop-filter:blur(4px);animation:wrFade .3s ease}
.wr-popup.out{animation:wrFadeOut .4s ease forwards}
.wr-popup-card{position:relative;background:var(--card,#fff);border-radius:22px;padding:40px 34px 30px;
  max-width:380px;width:100%;text-align:center;box-shadow:0 40px 90px -25px rgba(43,37,51,.5);
  animation:wrPop .5s cubic-bezier(.2,.9,.3,1.3)}
.wr-popup-ico{width:74px;height:74px;border-radius:50%;display:grid;place-items:center;margin:0 auto 18px;
  background:linear-gradient(135deg,var(--green,#5fa166),#3e9a57);box-shadow:0 10px 24px -8px rgba(95,161,102,.6)}
.wr-popup-ico svg path{stroke-dasharray:48;stroke-dashoffset:48;animation:wrCheck .5s .25s ease forwards}
.wr-popup-card h3{font-family:var(--disp,serif);font-size:1.5rem;margin-bottom:8px;color:var(--ink,#2b2533)}
.wr-popup-card p{color:var(--muted,#6f6878);font-size:.97rem;margin-bottom:22px}
.wr-popup-card .btn{width:100%}
.wr-popup-x{position:absolute;top:14px;right:16px;background:none;border:none;font-size:1.7rem;line-height:1;
  color:var(--muted-2,#9a93a4);cursor:pointer}
.wr-popup-x:hover{color:var(--ink,#2b2533)}
@keyframes wrFade{from{opacity:0}to{opacity:1}}
@keyframes wrFadeOut{to{opacity:0}}
@keyframes wrPop{from{opacity:0;transform:translateY(16px) scale(.94)}to{opacity:1;transform:none}}
@keyframes wrCheck{to{stroke-dashoffset:0}}
@media(prefers-reduced-motion:reduce){.wr-popup,.wr-popup-card,.wr-popup-ico svg path{animation:none}.wr-popup-ico svg path{stroke-dashoffset:0}}