/* Studio Sacha — version « Studio ».
   Structure inspirée de strategie.agency : un menu plein écran, deux grandes portes,
   des pages séparées. Palette noir / rouge, Helvetica Neue. */

*,*::before,*::after{box-sizing:border-box}
:root{
  --noir:#0B0B0D; --rouge:#EE1B2E; --encre:#14183A; --gris:#8A8FA8;
  --pale:#F4F6FC; --ligne:#E4E7F1;
  --police:"Helvetica Neue","Archivo",Arial,sans-serif;
  --marge:clamp(20px,5vw,72px);
}
html{scroll-behavior:smooth}
[id]{scroll-margin-top:clamp(96px,13vh,150px)}
body{margin:0;font-family:var(--police);font-weight:300;color:var(--encre);background:#fff;
     -webkit-font-smoothing:antialiased;line-height:1.5}
img,video{max-width:100%}
h1,h2,h3{margin:0;font-weight:800;letter-spacing:-.035em;line-height:.98;color:var(--noir)}
p{margin:0}
em{font-style:normal;color:var(--rouge)}
.rouge{color:var(--rouge)}
ul{margin:0;padding:0;list-style:none}
a{color:inherit}

/* ---- en-tête -------------------------------------------------------- */
.tete{position:fixed;top:0;left:0;right:0;z-index:50;display:flex;align-items:center;
      justify-content:space-between;padding:16px var(--marge);
      background:rgba(255,255,255,.96);-webkit-backdrop-filter:blur(10px);
      backdrop-filter:blur(10px);box-shadow:0 1px 0 var(--ligne);
      transition:padding .3s ease}
body.defile .tete{padding:10px var(--marge)}
body.menu-ouvert .tete{background:transparent;box-shadow:none}
.tete>*{pointer-events:auto}
.marque img{height:clamp(46px,4.6vw,68px);width:auto;aspect-ratio:246.107/88;
            display:block;transition:height .3s ease}
body.accueil .marque{visibility:hidden}          /* jusqu'à ce que le défilement le place */
body.accueil.place .marque{visibility:visible}
.accueil .marque{transform-origin:center;will-change:transform}
body:not(.accueil).defile .marque img{height:clamp(36px,3.4vw,48px)}
.marque .blanc{display:none}
body.defile .marque img{display:block}
body.defile .marque .blanc{display:none}
body.menu-ouvert .marque img{display:block}
body.menu-ouvert .marque .blanc{display:none}
body.menu-ouvert .tete .marque{transform:none!important}   /* jamais par-dessus le menu */

.coin{display:flex;align-items:center;gap:14px}
.langues{display:flex;align-items:center;gap:1px;background:#fff;border-radius:999px;padding:4px;
         box-shadow:0 8px 26px -14px rgba(11,11,13,.5)}
.langues button{border:0;background:transparent;cursor:pointer;font:inherit;font-size:12.5px;
        font-weight:700;letter-spacing:.04em;color:var(--gris);padding:6px 9px;border-radius:999px;
        transition:color .25s ease,background .25s ease}
.langues button:hover{color:var(--noir)}
.langues button.on{background:var(--noir);color:#fff}
@media (max-width:560px){.langues button{padding:6px 8px;font-size:11.5px}}

.rond-menu{width:clamp(52px,6vw,74px);aspect-ratio:1;border:0;border-radius:50%;background:#fff;
           cursor:pointer;display:grid;place-items:center;
           box-shadow:0 8px 26px -12px rgba(11,11,13,.5);transition:transform .3s ease}
.rond-menu:hover{transform:scale(1.06)}
.rond-menu i,.rond-menu i::before,.rond-menu i::after{display:block;width:26px;height:2.4px;
           background:var(--noir);transition:transform .35s cubic-bezier(.4,0,.2,1),opacity .2s}
.rond-menu i{position:relative}
.rond-menu i::before,.rond-menu i::after{content:'';position:absolute;left:0}
.rond-menu i::before{top:-8px}
.rond-menu i::after{top:8px}
body.menu-ouvert .rond-menu i{background:transparent}
body.menu-ouvert .rond-menu i::before{transform:translateY(8px) rotate(45deg)}
body.menu-ouvert .rond-menu i::after{transform:translateY(-8px) rotate(-45deg)}

/* ---- le menu plein écran -------------------------------------------- */
.menu{position:fixed;inset:0;z-index:45;background:#fff;display:grid;
      grid-template-columns:1fr 42%;opacity:0;transition:opacity .35s ease}
.menu[hidden]{display:none}
body.menu-ouvert{overflow:hidden}
body.menu-ouvert .menu{opacity:1}
.menu-liens{display:flex;flex-direction:column;justify-content:center;gap:6px;
            padding:96px var(--marge) 48px}
.menu-img{overflow:hidden}
.menu-img img{width:100%;height:100%;object-fit:cover;display:block}

/* le mot plein qui devient un contour : l'effet que Vanessa a repéré */
.gros{position:relative;display:block;width:max-content;max-width:100%;text-decoration:none;
      font-size:clamp(30px,5.4vw,78px);font-weight:800;letter-spacing:-.045em;line-height:1.06;
      color:var(--noir)}
.gros .creux{position:absolute;inset:0;color:transparent;-webkit-text-stroke:1.4px var(--rouge);
             opacity:0;transition:opacity .35s ease}
.gros .plein{transition:opacity .35s ease}
.gros:hover .plein,.gros:focus-visible .plein{opacity:0}
.gros:hover .creux,.gros:focus-visible .creux{opacity:1}
.gros.on .plein{opacity:0}
.gros.on .creux{opacity:1}
.menu .gros{opacity:0;transform:translateY(18px)}
body.menu-ouvert .menu .gros{opacity:1;transform:none;
      transition:opacity .5s ease var(--d,0s),transform .5s cubic-bezier(.2,.7,.3,1) var(--d,0s)}
.menu-appel{margin-top:26px;align-self:flex-start;text-decoration:none;font-size:15px;
            font-weight:700;background:var(--noir);color:#fff;padding:13px 30px;border-radius:999px;
            transition:background .25s ease}
.menu-appel:hover{background:var(--rouge)}
.menu-sous{display:flex;flex-wrap:wrap;gap:8px 24px;margin-top:22px;font-size:16px;font-weight:600}
.menu-sous a{text-decoration:none;border-bottom:1.5px solid var(--rouge);padding-bottom:2px}
.menu-sous a:hover{color:var(--rouge)}
.menu-coord{display:flex;flex-wrap:wrap;gap:6px 22px;margin-top:26px;font-size:14px;color:var(--gris)}
.menu-coord a{text-decoration:none}
.menu-coord a:hover{color:var(--rouge)}

/* ---- l'entrée : une page blanche, le logo au centre ---------------- */
.entree{position:relative;isolation:isolate;overflow:hidden}
.aurore{position:absolute;inset:0;z-index:-1;background:#FCFCFE;
  background-image:
    radial-gradient(38% 40% at 16% 16%,rgba(120,146,224,.30) 0%,transparent 70%),
    radial-gradient(42% 44% at 78% 12%,rgba(196,150,220,.28) 0%,transparent 72%),
    radial-gradient(46% 44% at 62% 52%,rgba(255,168,132,.30) 0%,transparent 74%),
    radial-gradient(40% 40% at 24% 58%,rgba(255,190,196,.30) 0%,transparent 72%);
  filter:blur(30px);
  -webkit-mask-image:linear-gradient(180deg,#000 0%,#000 62%,transparent 94%);
          mask-image:linear-gradient(180deg,#000 0%,#000 62%,transparent 94%);
  animation:respire 30s ease-in-out infinite alternate}
@keyframes respire{
  from{transform:translate3d(0,0,0) scale(1)}
  to{transform:translate3d(-3%,-2%,0) scale(1.08)}}

/* le premier écran ne contient rien d'autre que le logo, posé au centre */
.seuil{height:100svh;display:flex;align-items:flex-end;justify-content:center;
       padding-bottom:clamp(28px,5vh,56px)}
.filer{display:inline-flex;flex-direction:column;align-items:center;gap:10px;
       font-size:11.5px;font-weight:700;letter-spacing:.22em;text-transform:uppercase;
       color:var(--gris);transition:opacity .4s ease}
.filer i{display:block;width:1px;height:44px;background:linear-gradient(var(--gris),transparent);
         animation:tombe 2.2s ease-in-out infinite}
@keyframes tombe{0%{transform:scaleY(.3);transform-origin:top}
                 55%{transform:scaleY(1);transform-origin:top}
                 56%{transform:scaleY(1);transform-origin:bottom}
                 100%{transform:scaleY(.3);transform-origin:bottom}}

/* ---- l'accroche, qui apparaît une fois le logo rangé --------------- */
.ouvre{padding:clamp(30px,6vh,70px) var(--marge) clamp(56px,9vh,110px)}
.accroche{display:block;margin:0}
.sur{display:block;font-size:clamp(16px,2.1vw,26px);font-weight:700;letter-spacing:.24em;
     text-transform:uppercase;color:var(--gris)}
.rotor{display:grid;width:max-content;max-width:100%;margin:.06em 0 .04em}
.rotor i{grid-area:1/1;font-style:normal;font-weight:800;letter-spacing:-.045em;
         font-size:clamp(72px,15.4vw,208px);line-height:.94;white-space:nowrap;
         color:var(--rouge);opacity:0;
         animation:tourne 13.2s cubic-bezier(.4,0,.2,1) infinite}
.rotor i:nth-child(2){animation-delay:3.3s}
.rotor i:nth-child(3){animation-delay:6.6s}
.rotor i:nth-child(4){animation-delay:9.9s}
@keyframes tourne{
  0%{opacity:0;transform:translateY(.34em)}
  3%,22%{opacity:1;transform:none}
  25%,100%{opacity:0;transform:translateY(-.34em)}}
.fin{display:block;font-size:clamp(40px,6.4vw,84px);line-height:1.02;letter-spacing:-.045em;
     font-weight:800;color:var(--noir)}
.ouvre-p{margin-top:clamp(26px,3.4vw,42px);max-width:38ch;
         font-size:clamp(18px,2.2vw,28px);line-height:1.34;font-weight:400;color:var(--encre)}
.ouvre-p2{margin-top:clamp(18px,2.2vw,28px);max-width:62ch;
          font-size:clamp(15.5px,1.55vw,18px);line-height:1.62;color:var(--gris)}
.ouvre-p2 strong{font-weight:700;color:var(--noir)}

/* ---- le bouton signature, avec le jeton S. ------------------------- */
.bouton{position:relative;isolation:isolate;overflow:hidden;display:inline-flex;align-items:center;
        gap:15px;margin-top:clamp(26px,3.4vw,40px);padding:7px 30px 7px 7px;background:var(--rouge);
        color:#fff;text-decoration:none;font-weight:700;font-size:16px;border-radius:999px;
        transition:transform .35s ease,box-shadow .35s ease;
        box-shadow:0 10px 26px -12px rgba(238,27,46,.7)}
.bouton::before{content:'';position:absolute;z-index:-1;left:7px;top:50%;margin-top:-22px;
        width:44px;height:44px;border-radius:999px;background:#fff;
        transition:transform .5s cubic-bezier(.4,0,.2,1)}
.bouton:hover::before{transform:scale(16)}
.bouton:hover{transform:translateY(-3px);color:var(--noir);
        box-shadow:0 18px 34px -14px rgba(238,27,46,.45),inset 0 0 0 1.5px var(--rouge)}
.bouton .jeton{flex:none;width:44px;height:44px;border-radius:999px;display:flex;
        align-items:center;justify-content:center;line-height:1;font-weight:700;font-size:17px;
        letter-spacing:-.03em;white-space:nowrap;background:#fff;color:var(--noir)}
.bouton .jeton em{color:var(--rouge);transition:color .35s ease}
.bouton:hover .jeton{background:var(--rouge);color:#fff}
.bouton:hover .jeton em{color:#fff}
.bouton--clair{background:var(--rouge);color:#fff;box-shadow:0 10px 26px -12px rgba(238,27,46,.7)}
.bouton--clair::before{background:#fff}
.bouton--clair:hover{color:var(--noir);box-shadow:0 18px 34px -14px rgba(0,0,0,.45)}
.bouton--clair .jeton{background:#fff;color:var(--noir)}
.bouton--clair:hover .jeton{background:var(--rouge);color:#fff}
.bouton--clair:hover .jeton em{color:#fff}

/* le contenu de l'accroche n'apparaît qu'une fois le logo rangé */
.entree .ouvre>*{opacity:var(--vu,1)}
@media (prefers-reduced-motion:reduce){
  .rotor i{animation:none;opacity:1}
  .rotor i:not(:first-child){display:none}
  .aurore{animation:none}
  .filer i{animation:none}
  .seuil{height:auto;padding:0}
}

/* ---- les deux portes ------------------------------------------------ */
.portes{display:block}
.porte{position:relative;display:block;height:clamp(300px,48vh,560px);overflow:hidden;
       background:var(--noir);text-decoration:none}
.porte+.porte{border-top:1px solid rgba(255,255,255,.14)}
.defile{position:absolute;inset:0}
.porte .piste{display:flex;height:100%;width:max-content;animation:glisse 70s linear infinite;
       will-change:transform}   /* la durée est recalculée en JS, d'après la largeur */
.porte.envers .piste{animation-direction:reverse}
.porte .piste img{height:100%;width:auto;display:block;
           filter:grayscale(.15);transition:filter .5s ease}
@keyframes glisse{from{transform:translateX(0)}to{transform:translateX(-50%)}}
.porte::before{content:'';position:absolute;inset:auto 0 0 0;height:46%;z-index:1;
      background:linear-gradient(180deg,transparent,rgba(11,11,13,.62));pointer-events:none}
.porte::after{content:'';position:absolute;inset:0;background:rgba(11,11,13,.5);
              transition:background .45s ease}
.porte:hover::after{background:rgba(11,11,13,.34)}
.porte:hover .piste img{filter:none}
.porte-mot{position:absolute;left:0;right:0;top:50%;transform:translateY(-50%);z-index:2;
           text-align:center;color:#fff;font-size:clamp(44px,11vw,168px);font-weight:800;
           letter-spacing:-.05em;line-height:1;padding:0 16px}
.porte-sous,.porte-go{position:absolute;z-index:2;color:#fff;font-size:13px;letter-spacing:.12em;
                      text-transform:uppercase;font-weight:600}
.porte-sous{left:var(--marge);right:34%;bottom:52px;opacity:.9;
            font-size:clamp(15px,1.6vw,20px);letter-spacing:-.015em;
            text-transform:none;font-weight:500;line-height:1.25}
.porte-liste{position:absolute;z-index:2;color:#fff;left:var(--marge);bottom:26px;
             font-size:12px;letter-spacing:.12em;text-transform:uppercase;
             font-weight:600;opacity:.66;margin:0}
.porte-go{right:var(--marge);bottom:26px;opacity:0;transform:translateX(-10px);
          transition:.35s cubic-bezier(.4,0,.2,1)}
.porte:hover .porte-go{opacity:1;transform:none}
/* sans survol — sur téléphone — le voile est plus dense et le lien toujours lisible */
@media (hover:none){
  .porte::after{background:rgba(11,11,13,.56)}
  .porte-go{opacity:1;transform:none;font-size:11.5px}
}


/* ---- bandeau des marques -------------------------------------------- */
.bande-marques{border-block:1px solid var(--ligne);padding:26px 0 30px;background:#fff}
.bande-marques>p{padding:0 var(--marge);font-size:12.5px;font-weight:700;letter-spacing:.16em;
                 text-transform:uppercase;color:var(--gris)}
.piste-masque{margin-top:20px;overflow:hidden;
  -webkit-mask-image:linear-gradient(90deg,transparent,#000 7%,#000 93%,transparent);
          mask-image:linear-gradient(90deg,transparent,#000 7%,#000 93%,transparent)}
.piste-masque .piste{display:flex;align-items:center;gap:56px;width:max-content;
       animation:glisse 52s linear infinite}
.piste-masque img{height:26px;width:auto;opacity:.45;filter:grayscale(1);flex:0 0 auto}
.piste-masque:hover .piste{animation-play-state:paused}


.portes--suite{margin-top:clamp(40px,6vw,88px)}
.portes--suite .porte{border-top:1px solid rgba(255,255,255,.14)}

/* ---- V3 : navigation, appel à l'action, tête d'étude de cas -------- */
.tete{gap:clamp(8px,1.3vw,20px)}
.nav{display:flex;align-items:center;gap:clamp(7px,1.05vw,17px);flex:1 1 auto;
     justify-content:center;min-width:0}
.nav a{text-decoration:none;font-size:clamp(11.5px,0.93vw,13.5px);font-weight:600;
       letter-spacing:-.01em;color:var(--encre);white-space:nowrap;padding:6px 0;
       border-bottom:1.5px solid transparent;transition:color .25s ease,border-color .25s ease}
.nav a:hover{color:var(--rouge);border-bottom-color:var(--rouge)}
.tete-appel{text-decoration:none;background:var(--rouge);color:#fff;font-weight:700;
            font-size:clamp(11.5px,0.9vw,13px);letter-spacing:-.01em;padding:10px 16px;
            border-radius:999px;white-space:nowrap;transition:background .25s ease,color .25s ease,
            box-shadow .25s ease}
.tete-appel:hover{background:var(--noir);color:#fff}

/* la tête d'accueil sans animation : le contenu part sous la barre */
.entree .ouvre{padding-top:clamp(120px,16vh,190px)}
.accroche{font-size:clamp(38px,6.6vw,92px);line-height:1.02;letter-spacing:-.045em;
          max-width:18ch}
.entree .ouvre .ouvre-p2{margin-top:clamp(20px,2.6vw,34px)}

/* ---- l'ouverture d'une étude de cas : texte à gauche, image à droite */
.cas-tete--duo{display:grid;grid-template-columns:1.05fr .95fr;
               gap:clamp(24px,4vw,64px);align-items:center}
.cas-tete--duo .cas-tete-txt{min-width:0}
.cas-media{margin:0;overflow:hidden;background:var(--pale)}
.cas-media img,.cas-media video{width:100%;aspect-ratio:1/1;object-fit:cover;display:block}
.cas-media--film video{object-fit:contain;background:#fff}

/* ---- les autres études de cas, en bas de page --------------------- */
.cas-suite{padding:clamp(48px,7vw,104px) var(--marge) clamp(40px,6vw,88px)}
.cas-suite h2{font-size:clamp(24px,3.4vw,44px);margin-bottom:clamp(18px,2.4vw,32px)}
.cas-duo--suite{grid-template-columns:repeat(2,minmax(0,1fr))}
.cas-duo--suite .cas-vignette{max-width:640px}
.cas-carte--suite{text-decoration:none}
.cas-carte--suite .cas-img img{aspect-ratio:4/3;object-fit:contain;background:var(--pale)}
.cas-carte--suite:hover .cas-img img{transform:scale(1.05)}
.cas-carte--suite:hover .cas-lire{color:var(--rouge)}
@media (max-width:900px){.cas-carte--suite{grid-template-columns:1fr}}

/* ---- la méthode : le fil rouge, les gains, le bilan --------------- */
.signe{display:grid;grid-template-columns:.8fr 1.2fr;gap:clamp(24px,4vw,64px);
       align-items:center;padding:clamp(10px,2vw,26px) var(--marge) clamp(30px,4vw,56px)}
.signe-img{max-width:340px;justify-self:center;width:100%}
.signe-txt h2{margin-top:12px;font-size:clamp(24px,3.2vw,42px);line-height:1.04}
.signe-lead{margin-top:16px;font-size:clamp(17px,1.9vw,21px);font-weight:600;
            letter-spacing:-.02em;color:var(--noir)}
.contact-gain{margin-top:16px;font-size:clamp(16px,1.8vw,21px);color:#fff;opacity:.9;
              max-width:44ch;margin-inline:auto}
.signe-txt p{margin-top:16px;font-size:clamp(15.5px,1.6vw,18px);max-width:56ch;color:var(--encre)}
.signe-txt p strong{font-weight:700;color:var(--noir)}

.gain{display:inline-block;font-size:clamp(13px,1.25vw,16px);font-weight:600;
      letter-spacing:-.01em;color:var(--rouge)}
.etape h3 .gain{margin-left:8px}

.bilan{display:grid;grid-template-columns:1.05fr .95fr;gap:clamp(24px,4vw,64px);
       align-items:start;padding:clamp(46px,6vw,90px) var(--marge) 0}
.bilan-phrase{font-size:clamp(24px,3.6vw,50px);font-weight:800;letter-spacing:-.04em;
              line-height:1.04;color:var(--noir)}
.bilan-liste{display:grid;gap:0;border-top:1px solid var(--ligne)}
.bilan-liste li{padding:clamp(12px,1.6vw,20px) 0;border-bottom:1px solid var(--ligne)}
.bilan-liste b{display:block;font-size:clamp(16px,1.7vw,20px);font-weight:700;color:var(--noir);
               letter-spacing:-.02em}
.bilan-liste span{display:block;margin-top:4px;font-size:15px;color:var(--gris)}

.rappel-p{margin:14px auto 0;max-width:52ch;font-size:15.5px;color:var(--gris)}
.contact-mini{margin-top:clamp(22px,3vw,38px);max-width:60ch;margin-left:auto;margin-right:auto;
              font-size:13.5px;line-height:1.6;opacity:.62}

/* Sous 1200 px la barre ne tient plus sur une ligne : le menu passe
   en seconde ligne, défilable horizontalement, et reste donc lisible. */
@media (max-width:1200px){
  .tete{flex-wrap:wrap;row-gap:8px;padding-top:12px;padding-bottom:10px}
  body.defile .tete{padding-top:8px;padding-bottom:7px}
  .marque{order:1}
  .coin{order:2;margin-left:auto}
  .nav{order:3;flex:1 0 100%;justify-content:flex-start;overflow-x:auto;
       gap:clamp(14px,2.2vw,26px);padding-bottom:2px;
       -webkit-overflow-scrolling:touch;scrollbar-width:none;
       -webkit-mask-image:linear-gradient(90deg,#000 90%,transparent 100%);
               mask-image:linear-gradient(90deg,#000 90%,transparent 100%)}
  .nav a{font-size:13px}
  .nav::-webkit-scrollbar{display:none}
  .tete-appel{font-size:12px;padding:9px 15px}
}
@media (max-width:900px){
  .nav{gap:16px}
  .nav a{font-size:12.5px}
  .tete-appel{font-size:11.5px;padding:9px 14px}
  .entree .ouvre{padding-top:clamp(130px,20vh,190px)}
  .cas-tete--duo{grid-template-columns:1fr;gap:clamp(20px,4vw,32px)}
  .cas-media img,.cas-media video{aspect-ratio:4/3}
  .cas-duo--suite{grid-template-columns:1fr}
  .signe{grid-template-columns:1fr;gap:clamp(18px,4vw,30px)}
  .signe-img{max-width:230px}
  .bilan{grid-template-columns:1fr;gap:clamp(20px,4vw,32px)}
}

/* ---- V2 : les blocs éditoriaux -------------------------------------- */
.ouvre-liste{margin-top:clamp(14px,1.8vw,22px);font-size:13px;font-weight:700;
             letter-spacing:.13em;text-transform:uppercase;color:var(--gris)}
.qui-lead{font-size:clamp(18px,2vw,24px);letter-spacing:-.02em;margin-bottom:14px}
.qui-lead strong{font-weight:700}

.phrase-forte{padding:clamp(10px,1.6vw,20px) var(--marge) 0;max-width:none;
              font-size:clamp(26px,4.6vw,64px);font-weight:800;letter-spacing:-.045em;
              line-height:1.03}
.phrase-sous{padding:14px var(--marge) clamp(26px,3vw,44px);font-size:16px;color:var(--gris)}

.flous{padding:0 var(--marge) clamp(30px,4vw,56px)}
.flous ul{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:0 clamp(24px,4vw,64px);border-top:1px solid var(--ligne)}
.flous li{padding:clamp(9px,1.2vw,15px) 0;border-bottom:1px solid var(--ligne);
          font-size:clamp(19px,2.4vw,30px);font-weight:700;letter-spacing:-.03em}
.flous p{margin-top:clamp(26px,3.4vw,48px);font-size:clamp(24px,4.1vw,56px);max-width:none;
         font-weight:800;letter-spacing:-.04em;line-height:1.05}

.signature{padding:clamp(40px,6vw,90px) var(--marge) clamp(46px,7vw,100px);
           font-size:clamp(28px,5.3vw,78px);font-weight:800;letter-spacing:-.05em;
           line-height:1.0;max-width:none}

section.etapes--page{padding-top:clamp(20px,3vw,40px)}
section.etapes--page .etape:first-of-type{margin-top:0}

.avant{padding:clamp(6px,1vw,14px) var(--marge) clamp(40px,5vw,72px)}
.avant h2{font-size:clamp(22px,3vw,38px);letter-spacing:-.035em}
.avant ul{margin-top:clamp(18px,2.2vw,30px);display:grid;gap:0;max-width:min(100%,640px);
          border-top:1px solid var(--ligne)}
.avant li{padding:clamp(9px,1.1vw,14px) 0;border-bottom:1px solid var(--ligne);
          font-size:clamp(17px,2vw,24px);font-weight:600;letter-spacing:-.02em}
.avant p{margin-top:clamp(20px,2.4vw,32px);font-size:clamp(18px,2.2vw,27px);
         font-weight:700;letter-spacing:-.03em;max-width:46ch}
.avant-titre{padding:0 var(--marge) clamp(14px,1.8vw,24px);
             font-size:clamp(20px,2.6vw,32px);letter-spacing:-.035em}

.cas-question{margin-top:clamp(18px,2.2vw,30px);max-width:48ch;
              font-size:clamp(17px,2vw,25px);color:var(--gris);letter-spacing:-.02em}

@media (max-width:900px){
  .phrase-forte{font-size:clamp(24px,7vw,36px)}
  .signature{font-size:clamp(26px,7.4vw,44px)}
}

/* ---- la fenêtre de rendez-vous -------------------------------------- */
.rdv-voile{position:fixed;inset:0;z-index:80;display:grid;place-items:center;
           background:rgba(11,11,13,.62);-webkit-backdrop-filter:blur(4px);
           backdrop-filter:blur(4px);padding:clamp(12px,3vw,40px);
           opacity:0;visibility:hidden;transition:opacity .3s ease,visibility .3s}
.rdv-voile.vu{opacity:1;visibility:visible}
body.rdv-ouvert{overflow:hidden}
.rdv-boite{position:relative;width:min(940px,100%);height:min(760px,100%);background:#fff}
.rdv-boite iframe{width:100%;height:100%;border:0;display:block}
.rdv-fermer{position:absolute;top:-46px;right:0;width:38px;height:38px;border:0;
            background:#fff;color:var(--noir);font-size:22px;line-height:1;cursor:pointer;
            display:grid;place-items:center;transition:color .25s ease}
.rdv-fermer:hover{color:var(--rouge)}
@media (max-width:900px){.rdv-fermer{top:auto;bottom:-46px}}

/* ---- les quatre repères, à même la page ----------------------------- */
.reperes{--pv:clamp(11px,1.5vw,20px);padding:clamp(56px,8vw,110px) var(--marge) 0}
.reperes-liste{margin-top:clamp(12px,1.8vw,22px);border-top:1px solid var(--ligne)}
.reperes .gros{width:auto;max-width:none;padding:var(--pv) 0;
               border-bottom:1px solid var(--ligne);
               font-size:clamp(28px,5.4vw,72px)}
.reperes .gros .creux{inset:var(--pv) 0 auto 0}
.reperes .gros::after{content:'→';position:absolute;right:2px;top:50%;translate:0 -50%;
               font-size:clamp(18px,2.2vw,30px);color:var(--rouge);
               opacity:0;transition:opacity .35s ease,translate .35s ease}
.reperes .gros:hover::after,.reperes .gros:focus-visible::after{opacity:1;translate:8px -50%}

/* ---- études de cas -------------------------------------------------- */
.cas-sec{padding:clamp(56px,8vw,120px) var(--marge)}
.titre-anime{display:block;width:max-content;max-width:100%;
             font-size:clamp(36px,7.6vw,120px);letter-spacing:-.05em;line-height:.94;
             transform-origin:left bottom;will-change:transform;
             margin-bottom:clamp(10px,1.4vw,20px)}
.cas-carte{display:grid;grid-template-columns:1.25fr .75fr;gap:clamp(20px,3vw,48px);
           align-items:end;margin-top:0;text-decoration:none}
.cas-duo{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));
         gap:clamp(20px,3vw,48px)}
.cas-vignette{display:block;text-decoration:none}
.cas-vignette .cas-img img{aspect-ratio:4/3}
.cas-vignette .cas-txt{display:block;margin-top:clamp(14px,1.8vw,24px)}
.cas-vignette:hover .cas-img img{transform:scale(1.05)}
.cas-vignette:hover .cas-lire{color:var(--rouge)}
.cas-vignette .cas-txt b{font-size:clamp(26px,3.2vw,44px)}
.cas-img{display:block;overflow:hidden;background:var(--pale)}
.cas-img img{width:100%;aspect-ratio:16/10;object-fit:cover;display:block;
             transition:transform .8s cubic-bezier(.2,.7,.3,1)}
.cas-carte:hover .cas-img img{transform:scale(1.05)}
.cas-txt b{display:block;font-size:clamp(28px,3.6vw,52px);font-weight:800;letter-spacing:-.04em;
           line-height:1;color:var(--noir)}
.cas-txt small{display:block;margin-top:12px;font-size:14px;color:var(--gris)}
.cas-lire{display:inline-block;margin-top:22px;font-size:15px;font-weight:600;color:var(--noir);
          border-bottom:1.5px solid var(--rouge);padding-bottom:3px;transition:.25s ease}
.cas-carte:hover .cas-lire{color:var(--rouge)}
.cas-note{margin-top:26px;font-size:14px;color:var(--gris)}

/* ---- trois étapes --------------------------------------------------- */
.sur-titre{display:block;font-size:12.5px;font-weight:700;letter-spacing:.16em;
           text-transform:uppercase;color:var(--rouge)}
.etapes{padding:clamp(56px,8vw,120px) var(--marge);background:var(--pale)}
.etapes h2{margin-top:14px;font-size:clamp(34px,6vw,88px);line-height:.96}
.etape{display:grid;grid-template-columns:clamp(66px,6.4vw,110px) 1fr;gap:clamp(12px,1.6vw,26px);
       padding:clamp(24px,3vw,40px) 0;border-top:1px solid var(--ligne)}
.etape:first-of-type{margin-top:clamp(30px,4vw,56px)}
.etape .num{font-size:clamp(40px,7vw,104px);font-weight:800;letter-spacing:-.05em;line-height:.9;
            color:transparent;-webkit-text-stroke:1.6px var(--rouge)}
.etape h3{font-size:clamp(20px,2.4vw,30px);letter-spacing:-.03em}
.etape p{margin-top:12px;max-width:60ch;font-size:16.5px;color:var(--encre)}
.cout{margin-top:20px;display:grid;gap:12px;max-width:64ch}
.cout li{padding-left:20px;position:relative;font-size:15.5px;color:var(--encre)}
.cout li::before{content:'';position:absolute;left:0;top:.62em;width:11px;height:2px;
                 background:var(--rouge)}
.cout b{font-weight:700}

/* ---- qui ------------------------------------------------------------ */
.qui{display:grid;grid-template-columns:minmax(0,.85fr) minmax(0,1fr);gap:clamp(24px,5vw,80px);
     align-items:center;padding:clamp(56px,8vw,120px) var(--marge)}
.qui img{width:100%;height:auto;display:block}
.qui h2{margin-top:14px;font-size:clamp(32px,5vw,72px)}
.qui p{margin-top:20px;max-width:52ch;font-size:17px;color:var(--encre)}
.fleche{display:inline-block;margin-top:24px;font-size:15px;font-weight:600;text-decoration:none;
        border-bottom:1.5px solid var(--rouge);padding-bottom:3px;transition:.25s ease}
.fleche::after{content:' →';color:var(--rouge)}
.fleche:hover{color:var(--rouge)}

/* ---- contact -------------------------------------------------------- */
.contact{padding:clamp(56px,8vw,120px) var(--marge);background:var(--noir);color:#fff;
         text-align:center}
.contact h2{color:#fff;font-size:clamp(34px,7vw,96px)}
.contact>p{margin-top:16px;font-size:17px;color:#B9BECF}
.coord{display:flex;flex-wrap:wrap;justify-content:center;gap:10px 30px;margin-top:30px;
       font-size:15px}
.coord a{color:#B9BECF;text-decoration:none;border-bottom:1px solid rgba(255,255,255,.2)}
.coord a:hover{color:#fff}

/* ---- pages intérieures ---------------------------------------------- */
.page-tete{padding:clamp(46px,6vw,96px) var(--marge) clamp(30px,4vw,54px)}
.retour{display:inline-block;margin-bottom:26px;font-size:14px;font-weight:600;color:var(--gris);
        text-decoration:none;border:0;background:none;padding:0;cursor:pointer;font-family:inherit}
.retour:hover{color:var(--rouge)}
.page-tete h1{font-size:clamp(46px,10vw,140px);line-height:.9;letter-spacing:-.05em}
.page-tete p{margin-top:clamp(18px,2.4vw,30px);max-width:none;
             font-size:clamp(19px,2.5vw,34px);line-height:1.22;letter-spacing:-.025em;
             color:var(--encre);font-weight:300}

/* ---- planches ------------------------------------------------------- */
.planches-sec{padding:0 var(--marge) clamp(48px,6vw,88px)}
.chapitre{padding:clamp(36px,5vw,72px) 0 clamp(18px,2vw,28px)}
.chapitre h2{font-size:clamp(24px,3.4vw,44px)}
.chapitre p{margin-top:12px;font-size:16px;color:var(--gris);max-width:56ch}
.planches{display:grid;grid-template-columns:repeat(6,1fr);gap:clamp(14px,1.6vw,26px)}
.planche{margin:0}
.planche img,.planche video{width:100%;height:auto;display:block}
.planche--x{grid-column:span 6}
.planche--l{grid-column:span 4}
.planche--m{grid-column:span 3}
.planche--c{grid-column:span 2}
.planche figcaption{padding-top:12px;font-size:13.5px;color:var(--gris)}
.planche figcaption b{display:block;color:var(--encre);font-size:16px;font-weight:700;
                      letter-spacing:-.02em}
.cadre-film{position:relative;background:var(--pale);overflow:hidden}
.cadre-film video{width:100%;height:auto;display:block}
.lire{position:absolute;inset:0;width:100%;height:100%;border:0;cursor:pointer;font-size:0;
      background:transparent;display:block;transition:.3s ease}
.lire::before{content:'▶';position:absolute;right:14px;bottom:14px;
              font-size:14px;color:var(--rouge);background:#fff;width:46px;height:46px;
              border-radius:50%;display:grid;place-items:center;
              box-shadow:0 10px 26px -12px rgba(0,0,0,.5);
              transition:transform .3s ease,opacity .3s ease}
.film:hover .lire::before{transform:scale(1.08)}
.film.joue .lire::before{content:'❙❙';opacity:.55}
.film.joue:hover .lire::before{opacity:1}

/* ---- une étude de cas ----------------------------------------------- */
.cas-tete{padding:clamp(46px,6vw,96px) var(--marge) clamp(22px,3vw,34px)}
.cas-tete .cas-tags{display:block;font-size:13px;font-weight:600;letter-spacing:.14em;
                    text-transform:uppercase;color:var(--gris)}
.cas-tete h1{margin-top:14px;font-size:clamp(46px,10vw,132px);line-height:.9;letter-spacing:-.05em}
.cas-banniere{margin:0 0 clamp(40px,5vw,72px);padding:0 var(--marge)}
.cas-banniere img{width:100%;height:clamp(240px,46vw,620px);object-fit:cover;display:block}
.cas-banniere--entier img{height:auto;max-height:clamp(300px,52vw,640px);object-fit:contain;
                          background:var(--pale);padding:clamp(14px,2vw,30px) 0}
.cas-banniere figcaption{padding-top:12px;font-size:13.5px;color:var(--gris)}
.cas-recit{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:clamp(28px,4vw,72px);
           padding:0 var(--marge) clamp(46px,6vw,86px);max-width:1280px}
.cas-recit h2{font-size:13px;font-weight:700;letter-spacing:.14em;text-transform:uppercase;
              color:var(--rouge)}
.cas-recit p{margin-top:14px;font-size:clamp(16px,1.5vw,19px);line-height:1.62}
.cas-recit strong{font-weight:700}

/* ---- listes dépliables (pour qui, questions) ------------------------ */
.liste-q{padding:0 var(--marge) clamp(48px,6vw,88px)}
.q{border-top:1px solid var(--ligne)}
.q:last-of-type{border-bottom:1px solid var(--ligne)}
.q summary{list-style:none;cursor:pointer;position:relative;padding:clamp(18px,2.4vw,30px) 54px
           clamp(18px,2.4vw,30px) 0;font-size:clamp(21px,3.4vw,50px);font-weight:800;
           letter-spacing:-.04em;line-height:1.06;color:var(--noir)}
.q summary::-webkit-details-marker{display:none}
.q summary{transition:color .3s ease}
.q summary:hover{color:var(--rouge)}
.q summary::after{content:'';position:absolute;right:10px;top:50%;width:20px;height:2px;
                  background:var(--rouge);transition:transform .3s ease}
.q summary::before{content:'';position:absolute;right:19px;top:50%;width:2px;height:20px;
                   margin-top:-10px;background:var(--rouge);transition:transform .3s ease}
.q[open] summary::before{transform:rotate(90deg)}
.q[open] summary{color:var(--rouge)}
.q-rep{padding:0 0 clamp(24px,3vw,40px);max-width:78ch}
.q-rep p{font-size:16.5px;line-height:1.62;color:var(--encre)}
.q-rep .cit{font-size:clamp(17px,1.9vw,22px);font-style:italic;color:var(--noir);max-width:56ch}
.besoins{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:20px 40px;margin-top:26px}
.besoins li b{display:block;font-weight:700;font-size:15.5px;color:var(--noir)}
.besoins li span{display:block;margin-top:6px;font-size:15.5px;color:var(--gris);
                 border-left:2px solid var(--rouge);padding-left:12px}

/* ---- le vrai coût du flou ------------------------------------------- */
.cout-img{margin:0;padding:0 var(--marge) clamp(40px,5vw,72px)}
.cout-img img{width:100%;height:clamp(220px,36vw,460px);object-fit:cover;display:block}
.cout-img figcaption{padding-top:12px;font-size:14px;color:var(--gris)}
.compare{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:clamp(20px,3vw,48px);
         padding:0 var(--marge) clamp(48px,6vw,88px)}
.col{padding:clamp(24px,3vw,40px);background:var(--pale)}
.col--avec{background:var(--noir);color:#fff}
.col--avec h2{color:#fff}
.col h2{font-size:clamp(20px,2.4vw,30px)}
.col ul{display:grid;gap:18px;margin-top:24px}
.col li{display:grid;grid-template-columns:30px 1fr;gap:14px;align-items:start;font-size:16px}
.col .ic{display:grid;place-items:center;width:30px;height:30px}
.col .ic svg{width:24px;height:24px}
.col--sans .ic svg{stroke:var(--gris)}
.col--avec .ic svg{stroke:#7DBE2E}

/* ---- la méthode ----------------------------------------------------- */
.duo{display:grid;grid-template-columns:1fr minmax(220px,.8fr) 1fr;gap:clamp(20px,3vw,48px);
     align-items:center;padding:clamp(20px,3vw,40px) var(--marge) clamp(30px,4vw,54px)}
.camp h2{font-size:clamp(19px,2.2vw,27px)}
.camp .cit{margin-top:14px;font-size:clamp(17px,1.9vw,22px);font-style:italic;color:var(--noir)}
.camp p{margin-top:14px;font-size:16px;color:var(--gris)}
.noeud svg{width:100%;height:auto}
.resultat{padding:0 var(--marge) clamp(48px,6vw,88px);font-size:clamp(17px,2vw,24px);
          max-width:70ch;line-height:1.45}
.resultat strong{font-weight:700;color:var(--noir)}

/* ---- rappel + pied -------------------------------------------------- */
.rappel{padding:clamp(46px,6vw,92px) var(--marge);background:var(--noir);color:#fff;
        text-align:center}
.rappel h2{color:#fff;font-size:clamp(26px,4vw,52px);margin-bottom:26px}
.pied{padding:clamp(40px,5vw,72px) var(--marge);background:var(--noir);color:#8A8FA8;
      display:grid;grid-template-columns:1fr auto;gap:26px 48px;border-top:1px solid rgba(255,255,255,.1)}
.pied img{height:30px;display:block}
.pied p{margin-top:14px;font-size:14px;line-height:1.55}
.pied-liens{display:grid;gap:8px;text-align:right;font-size:14px}
.pied-liens a{text-decoration:none}
.pied-liens a:hover{color:#fff}
.mini{grid-column:1/-1;font-size:12.5px;opacity:.6}

/* ---- apparitions ---------------------------------------------------- */
.ap{opacity:0;transform:translateY(16px)}
.ap.vu{opacity:1;transform:none;transition:opacity .6s ease,transform .7s cubic-bezier(.2,.7,.3,1)}

/* ---- mobile --------------------------------------------------------- */
@media (max-width:900px){
  .flous ul{grid-template-columns:1fr}
  .etape{grid-template-columns:1fr;gap:6px}
  .etape .num{font-size:clamp(34px,9vw,52px)}
  .ouvre-p{font-size:clamp(19px,5.2vw,28px)}
  .ouvre-p2{font-size:16px}
  .menu{grid-template-columns:1fr}
  .menu-img{display:none}
  .menu-liens{justify-content:flex-start;padding-top:110px;overflow:auto}
  .cas-carte{grid-template-columns:1fr}
  .cas-duo{grid-template-columns:1fr;gap:clamp(30px,6vw,48px)}
  .qui{grid-template-columns:1fr}
  .qui img{max-width:340px}
  .planches{grid-template-columns:repeat(2,1fr)}
  .planche--x,.planche--l,.planche--m{grid-column:span 2}
  .planche--c{grid-column:span 1}
  .cas-recit,.compare,.besoins{grid-template-columns:1fr}
  .duo{grid-template-columns:1fr}
  .noeud{max-width:300px;margin:0 auto}
  .pied{grid-template-columns:1fr}
  .pied-liens{text-align:left;grid-template-columns:repeat(2,1fr)}
  .porte-sous{display:none}
  .porte-liste{bottom:22px;font-size:10.5px;letter-spacing:.09em;right:var(--marge)}
}