:root{
  --blue:#3967B1;
  --yellow:#F9C828;
  --navy:#003366;
  --paper:#ffffff;
  --soft:#f9fcff;
  --ink:#333333;
  --menu:220px;
  --shadow:0 18px 50px rgba(57,103,177,.12);
}
*{box-sizing:border-box} html{scroll-behavior:smooth} body{margin:0;font-family:"Helvetica Neue",Arial,sans-serif;color:var(--ink);background:var(--paper);overflow:hidden} a{color:inherit;text-decoration:none} img{max-width:100%;display:block}
.menu{position:fixed;inset:0 auto 0 0;width:var(--menu);background:#fff;z-index:30;border-right:1px solid rgba(57,103,177,.12);padding:28px 22px 18px;display:flex;flex-direction:column}
.logo{width:88px;height:88px;border-radius:50%;overflow:hidden;margin:2px auto 30px;transition:.25s transform}.logo:hover{transform:scale(1.04)}.logo img{width:100%;height:100%;object-fit:cover}
.menu nav{display:flex;flex-direction:column;gap:4px}.nav-link{position:relative;color:var(--blue);font-size:14px;font-weight:700;letter-spacing:.02em;padding:11px 8px 11px 31px;border-radius:6px;transition:.2s}.nav-link span{position:absolute;left:8px;color:var(--yellow);font-size:10px;top:13px}.nav-link:hover,.nav-link.active{background:rgba(57,103,177,.07);color:var(--blue)}.nav-link.active:after{content:"";position:absolute;right:-22px;top:7px;bottom:7px;width:4px;background:var(--yellow)}
.menu-meta{margin-top:auto;border-top:1px solid rgba(57,103,177,.14);padding-top:16px;display:flex;flex-direction:column;gap:4px;color:var(--blue)}.menu-meta strong{font-size:12px}.menu-meta small{font-size:10px;line-height:1.4}.menu footer{font-size:9px;color:var(--blue);opacity:.72;margin-top:16px}
.mobile-menu-opener{display:none}
.stage{position:fixed;left:var(--menu);top:0;width:calc(100vw - var(--menu));height:100vh;overflow-x:auto;overflow-y:hidden;scroll-snap-type:x mandatory;scroll-behavior:smooth;scrollbar-width:none}.stage::-webkit-scrollbar{display:none}.track{height:100%;display:flex;width:max-content}.panel{position:relative;flex:0 0 calc(100vw - var(--menu));width:calc(100vw - var(--menu));height:100vh;overflow-y:auto;overflow-x:hidden;scroll-snap-align:start;background:#fff;padding:0;scrollbar-width:thin;scrollbar-color:rgba(57,103,177,.22) transparent}.panel.soft{background:var(--soft)}
.panel-inner{width:min(1120px,calc(100% - 90px));margin:0 auto;padding:72px 0 90px;min-height:100%;display:flex;flex-direction:column;justify-content:center}.section-title{max-width:800px;margin-bottom:42px}.section-title h2{margin:0;color:var(--blue);font-size:clamp(34px,4.2vw,64px);line-height:1.02;letter-spacing:-.035em;font-weight:700}.eyebrow{text-transform:uppercase;color:var(--yellow);font-weight:800;letter-spacing:.18em;font-size:12px;margin:0 0 16px}.intro{font-size:18px;line-height:1.7;max-width:760px;margin:24px 0 0}.panel-number{position:fixed;right:34px;bottom:24px;pointer-events:none;color:var(--blue);font-weight:800;letter-spacing:.08em;font-size:12px;opacity:.75}.panel-number span{color:var(--yellow)}
.home{background-color:#f4f6f8;background-image:url("img/banner/2.jpg");background-repeat:no-repeat;background-position:center top;background-size:auto 92%;color:#fff}.home-overlay{position:absolute;left:0;right:0;top:0;height:92%;background:linear-gradient(90deg,rgba(57,103,177,.77) 0%,rgba(57,103,177,.48) 46%,rgba(57,103,177,.10) 100%)}.home-copy{position:relative;z-index:2;max-width:820px;margin-left:clamp(45px,7vw,110px);padding-right:30px;top:50%;transform:translateY(-50%)}.eyebrow.light{color:#fff}.home h1{font-size:clamp(52px,7vw,104px);line-height:.88;margin:0;color:#fff;letter-spacing:-.055em}.home h1 span{color:var(--yellow)}.home h2{font-size:clamp(24px,2.6vw,39px);line-height:1.12;max-width:720px;margin:28px 0 18px;color:#fff;font-weight:500}.home-lead{font-size:18px;line-height:1.65;max-width:700px;margin:0 0 28px}.actions{display:flex;gap:12px;flex-wrap:wrap}.btn{display:inline-flex;align-items:center;justify-content:center;padding:13px 19px;border-radius:4px;font-size:13px;font-weight:800;letter-spacing:.02em}.btn-yellow{background:var(--yellow);color:var(--blue)}.btn-outline-light{border:1px solid rgba(255,255,255,.8);color:#fff}.languages{font-size:12px;margin-top:23px;color:rgba(255,255,255,.9);letter-spacing:.06em}.light-number{color:#fff}.light-number span{color:var(--yellow)}
.cards{display:grid;gap:18px}.cards.three{grid-template-columns:repeat(3,1fr)}.cards.two{grid-template-columns:repeat(2,1fr)}.card{background:#fff;border:1px solid rgba(57,103,177,.12);padding:30px 28px;border-radius:8px;box-shadow:var(--shadow)}.soft .card{background:#fff}.card>b{color:var(--yellow);font-size:12px;letter-spacing:.12em}.card h3{color:var(--blue);font-size:22px;margin:13px 0 12px}.card p{line-height:1.65;margin:0}.highlight{margin-top:22px;border-left:4px solid var(--yellow);background:rgba(57,103,177,.06);padding:18px 20px;line-height:1.6}.highlight strong{color:var(--blue)}
.split-layout{display:grid;grid-template-columns:minmax(280px,.85fr) minmax(420px,1.15fr);gap:70px;align-items:start}.sticky-copy{position:sticky;top:72px;margin:0}.approach-list{display:flex;flex-direction:column;border-top:1px solid rgba(57,103,177,.16)}.approach-list article{display:grid;grid-template-columns:44px 1fr;gap:12px;padding:25px 0;border-bottom:1px solid rgba(57,103,177,.16)}.approach-list article>span{color:var(--yellow);font-weight:800;font-size:12px;padding-top:5px}.approach-list h3{margin:0 0 8px;color:var(--blue);font-size:24px}.approach-list p{margin:0;line-height:1.65}
.nondual{background:var(--blue);color:#fff}.nondual .panel-inner{justify-content:center}.nondual-grid{display:grid;grid-template-columns:.9fr 1.1fr;gap:80px;align-items:center}.nondual .section-title{margin:0}.nondual .section-title h2{color:#fff}.eyebrow.yellow{color:var(--yellow)}.nondual-copy{border-left:1px solid rgba(249,200,40,.65);padding-left:42px}.nondual-copy p{font-size:17px;line-height:1.75;color:rgba(255,255,255,.9)}.nondual-copy .large{font-size:26px;line-height:1.4;color:#fff;margin-top:0}
.about-grid{display:grid;grid-template-columns:1.18fr .82fr;gap:60px;align-items:center}.about-grid h2{color:var(--blue);font-size:clamp(34px,4vw,58px);line-height:1.04;margin:0 0 24px;letter-spacing:-.035em}.about-grid p{line-height:1.68}.path{display:flex;align-items:center;gap:12px;flex-wrap:wrap;margin:20px 0 10px}.path span{background:var(--blue);color:#fff;padding:8px 12px;border-radius:3px;font-size:12px;font-weight:800}.path i{color:var(--yellow);font-style:normal;font-weight:900}.about-grid blockquote{margin:28px 0;padding:18px 22px;border-left:4px solid var(--yellow);background:#fff;color:var(--blue);font-size:19px;line-height:1.55}.portrait{margin:0;background:#fff;padding:12px;box-shadow:var(--shadow);border-radius:8px}.portrait img{width:100%;aspect-ratio:4/5;object-fit:cover;object-position:center 28%;border-radius:4px}.portrait figcaption{display:flex;flex-direction:column;padding:14px 6px 6px;color:var(--blue)}.portrait figcaption span{font-size:12px;margin-top:3px}
.wide-title{max-width:920px}.logos{display:grid;grid-template-columns:repeat(5,1fr);gap:24px 18px;align-items:center;margin-top:38px;padding:24px;background:var(--soft);border-radius:8px}.logos img{max-height:64px;max-width:135px;width:auto;margin:auto;object-fit:contain;filter:grayscale(100%);opacity:.68;transition:.2s}.logos img:hover{filter:none;opacity:1}
.faq-grid{display:grid;grid-template-columns:.8fr 1.2fr;gap:70px;align-items:start}.faq-list{border-top:1px solid rgba(57,103,177,.17)}details{border-bottom:1px solid rgba(57,103,177,.17);padding:19px 0}summary{cursor:pointer;list-style:none;color:var(--blue);font-weight:800;font-size:18px;padding-right:25px;position:relative}summary::-webkit-details-marker{display:none}summary:after{content:"+";position:absolute;right:2px;top:-4px;color:var(--yellow);font-size:25px}details[open] summary:after{content:"–"}details p{line-height:1.65;margin:13px 0 2px;max-width:700px}
.contact{background:var(--blue);color:#fff}.contact-grid{display:grid;grid-template-columns:1fr .82fr;gap:80px;align-items:center}.contact h2{font-size:clamp(38px,4.5vw,68px);line-height:1.03;margin:0;color:#fff;letter-spacing:-.035em}.light-text{color:rgba(255,255,255,.9)}.signature{color:var(--yellow);font-size:20px;margin-top:40px;font-style:italic}.contact-card{background:#fff;color:var(--ink);padding:35px 38px;border-radius:8px;box-shadow:0 20px 60px rgba(0,0,0,.13)}.contact-card h3{color:var(--blue);font-size:24px;margin:0 0 22px}.contact-card p{line-height:1.65;margin:16px 0}.contact-card strong,.contact-card a{color:var(--blue)}
.slide-controls{position:fixed;right:30px;bottom:18px;z-index:40;display:flex;align-items:center;gap:9px;background:rgba(255,255,255,.94);padding:7px 9px;border-radius:30px;box-shadow:0 4px 20px rgba(0,0,0,.09)}.slide-controls button{width:31px;height:31px;border-radius:50%;border:0;background:var(--blue);color:#fff;cursor:pointer;font-size:17px}.slide-controls span{font-size:10px;font-weight:800;color:var(--blue);letter-spacing:.08em;min-width:45px;text-align:center}
@media(max-width:1050px) and (min-width:768px){:root{--menu:190px}.menu{padding-left:18px;padding-right:18px}.nav-link.active:after{right:-18px}.panel-inner{width:min(100% - 56px,980px)}.cards.three{grid-template-columns:1fr}.split-layout,.nondual-grid,.faq-grid{gap:42px}.about-grid{gap:38px}.section-title h2{font-size:44px}}
@media(max-width:767px){
  body{overflow-y:auto;overflow-x:hidden}.mobile-menu-opener{display:block;position:fixed;left:14px;top:14px;z-index:60;width:44px;height:44px;border:0;border-radius:50%;background:var(--blue);color:#fff;font-size:21px;box-shadow:0 5px 18px rgba(57,103,177,.25)}
  .menu{left:-220px;width:220px;transition:left .28s ease;box-shadow:10px 0 35px rgba(0,0,0,.12)}.menu.open{left:0}.menu .logo{width:72px;height:72px;margin-bottom:20px}.menu-meta{margin-top:18px}.menu footer{margin-top:12px}
  .stage{position:relative;left:0;top:0;width:100%;height:auto;overflow:visible;scroll-snap-type:none}.track{display:block;width:100%;height:auto}.panel{width:100%;height:auto;min-height:0;overflow:visible;scroll-snap-align:none}.panel-inner{width:100%;padding:78px 22px 64px;min-height:0;display:block}.panel-number,.slide-controls{display:none}
  .home{height:100svh;min-height:620px;background-position:center top;background-size:cover}.home-overlay{height:100%}.home-copy{margin:0;padding:0 24px;top:50%;transform:translateY(-50%)}.home h1{font-size:53px}.home h2{font-size:27px}.home-lead{font-size:16px}.actions{gap:8px}.btn{width:100%}
  .section-title{margin-bottom:30px}.section-title h2,.about-grid h2,.contact h2{font-size:38px}.intro{font-size:16px;margin-top:18px}.cards.three,.cards.two,.split-layout,.nondual-grid,.about-grid,.faq-grid,.contact-grid{display:block}.card{margin-bottom:14px;padding:24px 22px}.sticky-copy{position:static;margin-bottom:30px}.approach-list article{padding:21px 0}.nondual-copy{border-left:0;border-top:1px solid rgba(249,200,40,.65);padding:26px 0 0;margin-top:28px}.nondual-copy .large{font-size:22px}.portrait{margin-top:30px}.logos{grid-template-columns:repeat(2,1fr);gap:20px}.contact-card{margin-top:34px;padding:28px 24px}.path{gap:7px}.about-grid blockquote{font-size:17px}.faq-list{margin-top:28px}
}
@media(max-width:420px){.home h1{font-size:44px}.home h2{font-size:24px}.section-title h2,.about-grid h2,.contact h2{font-size:33px}}

.ensemble-block{margin-top:28px;padding:24px;background:#fff;border-left:4px solid var(--yellow);box-shadow:var(--shadow);border-radius:6px}.ensemble-block h3{margin:0 0 18px;color:var(--blue);font-size:20px}.ensemble-block img{width:min(100%,560px);height:auto;margin:0 auto}.faq-grid{align-items:start}.faq-grid .panel-inner{}
@media(min-width:1500px){.home{background-size:auto 88%;background-position:center top}.home-overlay{height:88%}}
@media(min-width:2000px){.home{background-size:auto 84%}.home-overlay{height:84%}}

/* V3.2 — schémas de développement psycho-émotionnel */
.development-section{margin-top:44px;padding-top:34px;border-top:1px solid rgba(57,103,177,.14)}
.development-heading{max-width:860px;margin-bottom:22px}.development-heading h3{margin:6px 0 10px;color:var(--blue);font-size:clamp(25px,2.3vw,36px);line-height:1.15}.development-heading>p:last-child{margin:0;line-height:1.65}
.development-diagrams{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:22px}.development-card{margin:0;background:#fff;border:1px solid rgba(57,103,177,.12);border-radius:8px;overflow:hidden;box-shadow:var(--shadow)}.development-card a{display:block;background:#fff}.development-card img{width:100%;height:auto;transition:transform .25s ease}.development-card a:hover img{transform:scale(1.012)}.development-card figcaption{display:flex;align-items:baseline;justify-content:space-between;gap:16px;padding:13px 16px;border-top:1px solid rgba(57,103,177,.10);color:var(--blue)}.development-card figcaption strong{font-size:15px}.development-card figcaption span{font-size:11px;color:#657184}
@media(max-width:767px){.development-section{margin-top:32px;padding-top:28px}.development-diagrams{grid-template-columns:1fr}.development-card figcaption{align-items:flex-start;flex-direction:column;gap:3px}}

/* V3.4 — citations & closing signature */
.quote-strip{margin:34px auto 0;max-width:980px;border-top:1px solid rgba(57,103,177,.18);padding-top:20px;text-align:center;color:var(--blue)}
.quote-strip p{font-size:20px;line-height:1.5;font-style:italic;margin:0 auto 6px;max-width:850px}
.quote-strip span{font-size:12px;opacity:.68}
.quote-pair{display:grid;grid-template-columns:1fr 1fr;gap:18px;margin-top:32px}
.quote-pair blockquote,.faq-quotes blockquote{margin:0;padding:20px 22px;border-left:4px solid var(--yellow);background:#fff;color:var(--blue);font-size:17px;line-height:1.55;box-shadow:0 8px 28px rgba(0,51,102,.06)}
.quote-pair blockquote cite,.faq-quotes blockquote cite{display:block;margin-top:8px;font-size:12px;font-style:normal;opacity:.7}
.quote-pair .harmony{display:flex;align-items:center;justify-content:center;text-align:center;font-weight:700;background:var(--blue);color:#fff;border-left-color:var(--yellow)}
.faq-quotes{display:grid;grid-template-columns:1fr 1fr;gap:16px;margin-top:24px}



@media (max-width:767px){.quote-pair,.faq-quotes{grid-template-columns:1fr}.quote-strip p{font-size:17px}}

/* V3.6 — closing image styled like the original framed portrait */
.closing-signature{
  margin:34px 0 0;
  width:min(100%, 390px);
  max-width:390px;
  background:#fff;
  padding:14px 14px 0;
  border:1px solid rgba(0,0,0,.08);
  box-shadow:0 14px 34px rgba(0,0,0,.16),0 3px 9px rgba(0,0,0,.08);
}
.closing-signature-image{background:#fff;overflow:hidden}
.closing-signature-image img{display:block;width:100%;height:auto}
.closing-signature figcaption{
  margin:0;
  padding:22px 18px 24px;
  background:#fff;
  color:#3967B1;
  font-size:20px;
  line-height:1.45;
  font-style:italic;
  text-align:center;
}
@media (max-width:767px){
  .closing-signature{margin-top:26px;width:min(100%,390px);max-width:390px}
  .closing-signature figcaption{font-size:18px;padding:18px 14px 20px}
}

.identity-copy{
  margin:30px 0 10px;
  max-width:900px;
  padding:24px 26px;
  background:#f9fcff;
  border-left:4px solid #F9C828;
}
.identity-copy h3{
  margin:0 0 10px;
  color:#3967B1;
}
.identity-copy p{
  margin:0 0 9px;
}
.identity-copy p:last-child{
  margin-bottom:0;
}
@media (max-width:767px){
  .identity-copy{padding:20px;margin-top:24px}
}


@media (max-width:767px){
  
}

.approach-opening-quote{
  margin:24px 0 0;
  padding:18px 20px;
  border-left:4px solid #F9C828;
  background:#f9fcff;
  color:#3967B1;
  font-size:20px;
  line-height:1.45;
  font-style:italic;
}
.approach-opening-quote cite{
  display:block;
  margin-top:8px;
  color:#003366;
  font-size:13px;
  font-style:normal;
}
@media (max-width:767px){
  .approach-opening-quote{font-size:18px}
}

.faq-quotes-left{
  margin-top:32px;
  grid-template-columns:1fr;
  gap:16px;
}
.faq-quotes-left blockquote{
  margin:0;
}
@media (max-width:767px){
  .faq-quotes-left{margin-top:24px}
}

/* V3.14 — Contact rebalanced */
.contact-balanced{
  display:grid;
  grid-template-columns:minmax(0,1.08fr) minmax(320px,.92fr);
  gap:clamp(48px,6vw,90px);
  align-items:center;
}
.contact-copy{
  min-width:0;
}
.contact-copy .contact-card{
  margin-top:30px;
  max-width:560px;
}
.contact-visual{
  display:flex;
  justify-content:center;
  align-items:center;
  min-width:0;
}
.contact-visual .closing-signature{
  margin:0;
  width:min(100%,390px);
  max-width:390px;
}
.development-harmony{
  margin-top:18px;
}
@media (max-width:1000px){
  .contact-balanced{
    grid-template-columns:1fr 360px;
    gap:40px;
  }
}
@media (max-width:767px){
  .contact-balanced{
    display:block;
  }
  .contact-copy .contact-card{
    max-width:none;
  }
  .contact-visual{
    margin-top:34px;
    justify-content:flex-start;
  }
  .contact-visual .closing-signature{
    width:min(100%,390px);
  }
}

/* V3.15 — Contact: lighter closing panel */
.panel.contact{
  background:#f9fcff;
  color:#003366;
}
.panel.contact h2,
.panel.contact h3{
  color:#3967B1;
}
.panel.contact .light-text{
  color:#003366;
}
.panel.contact .eyebrow.yellow{
  color:#F9C828;
}
.panel.contact .contact-card{
  background:#fff;
  color:#003366;
  border:1px solid rgba(57,103,177,.14);
  box-shadow:0 12px 30px rgba(0,51,102,.08);
}
.panel.contact .contact-card h3{
  color:#3967B1;
}
.panel.contact .contact-card a{
  color:#3967B1;
}
.panel.contact .panel-number{
  color:#3967B1;
}
.panel.contact .panel-number span{
  color:#003366;
  opacity:.55;
}

/* V3.16 — In-page animated lightbox for development diagrams */
.development-lightbox-trigger{
  display:block;
  width:100%;
  padding:0;
  border:0;
  background:transparent;
  cursor:zoom-in;
  text-align:inherit;
}
.development-lightbox-trigger img{
  display:block;
  width:100%;
  height:auto;
}
.image-lightbox{
  position:fixed;
  inset:0;
  z-index:9999;
  display:flex;
  align-items:center;
  justify-content:center;
  padding:clamp(18px,4vw,54px);
  visibility:hidden;
  opacity:0;
  pointer-events:none;
  transition:opacity .28s ease, visibility .28s ease;
}
.image-lightbox.is-open{
  visibility:visible;
  opacity:1;
  pointer-events:auto;
}
.image-lightbox-backdrop{
  position:absolute;
  inset:0;
  background:rgba(0,20,38,.78);
  backdrop-filter:blur(3px);
}
.image-lightbox-dialog{
  position:relative;
  z-index:1;
  width:min(94vw,1100px);
  max-height:90vh;
  display:flex;
  align-items:center;
  justify-content:center;
  transform:scale(.94) translateY(12px);
  opacity:0;
  transition:transform .3s ease, opacity .3s ease;
}
.image-lightbox.is-open .image-lightbox-dialog{
  transform:scale(1) translateY(0);
  opacity:1;
}
.image-lightbox-image{
  display:block;
  max-width:100%;
  max-height:86vh;
  width:auto;
  height:auto;
  background:#fff;
  border-radius:4px;
  box-shadow:0 24px 70px rgba(0,0,0,.35);
}
.image-lightbox-close{
  position:absolute;
  top:-18px;
  right:-18px;
  width:44px;
  height:44px;
  border-radius:50%;
  border:0;
  background:#fff;
  color:#3967B1;
  font-size:30px;
  line-height:1;
  cursor:pointer;
  box-shadow:0 8px 24px rgba(0,0,0,.22);
}
.image-lightbox-close:hover,
.image-lightbox-close:focus-visible{
  background:#F9C828;
  color:#003366;
}
body.lightbox-open{
  overflow:hidden;
}
@media (max-width:767px){
  .image-lightbox{
    padding:18px;
  }
  .image-lightbox-dialog{
    width:100%;
  }
  .image-lightbox-image{
    max-height:82vh;
  }
  .image-lightbox-close{
    top:-12px;
    right:-8px;
  }
}
@media (prefers-reduced-motion:reduce){
  .image-lightbox,
  .image-lightbox-dialog{
    transition:none;
  }
}

/* V3.17 — cleaner left navigation without section numbers */
.site-nav .nav-link,
nav[aria-label="Navigation principale"] .nav-link{
  gap:0;
}

/* V3.18 — more breathing room for the closing artwork */
.closing-signature-image{
  display:flex;
  align-items:center;
  justify-content:center;
  padding:24px 28px 18px;
  background:#fff;
}
.closing-signature-image img{
  width:82%;
  max-width:300px;
  height:auto;
}
@media (max-width:767px){
  .closing-signature-image{padding:20px 22px 14px}
  .closing-signature-image img{width:84%;max-width:280px}
}

/* V3.20 — Home typographic balance */
@media (min-width:768px){
  .home h1{
    font-size:clamp(46px,6.1vw,90px);
    line-height:.9;
  }
  .home h2{
    font-size:clamp(27px,3vw,43px);
    line-height:1.1;
    max-width:760px;
    margin-top:26px;
  }
}
@media (max-width:767px){
  .home h1{
    font-size:48px;
  }
  .home h2{
    font-size:29px;
    line-height:1.12;
  }
}

/* V3.21 — Home: name becomes more discreet */
@media (min-width:768px){
  .home h1{
    font-size:clamp(40px,5vw,72px);
    line-height:.94;
    letter-spacing:-.04em;
  }
}
@media (max-width:767px){
  .home h1{
    font-size:42px;
    line-height:.96;
  }
}

/* V3.22 — Mobile vertical scroll without Menu tab */
@media (max-width:767px){
  .mobile-menu-opener,
  .menu-opener,
  .nav-toggle,
  .site-menu-toggle{
    display:none !important;
  }

  nav[aria-label="Navigation principale"],
  .site-nav{
    display:none !important;
  }
}