/* ==========================================================================
   BKL Audit — Design system
   Cabinet d'ingenierie financiere. Charte calee sur le logo : azur #12A0DB
   (marque), marine profond en surfaces sombres, neutres froids.
   Systeme : 1 accent, 1 echelle d'espacement (base 8), 1 rayon, profondeur
   en couches. Accessibilite AA par defaut, motion qui guide (jamais qui decore).
   ========================================================================== */

:root{
  /* --- Marque (logo) --- */
  --brand:#12A0DB;
  --brand-600:#0A78A8;      /* texte azur sur blanc : 4.92:1, WCAG AA verifie */
  --brand-700:#096285;
  --brand-300:#7FCBEC;
  --brand-100:#CDE9F7;
  --brand-050:#E9F5FC;

  /* --- Marine --- */
  --navy:#0B3A56;
  --navy-700:#0F4B6E;
  --ink:#0A2E45;
  --ink-900:#061E2E;

  /* --- Neutres --- */
  --paper:#F5F8FB;
  --paper-2:#EAF1F7;
  --surface:#FFFFFF;
  --text:#0F2230;
  --text-muted:#51657A;
  --text-faint:#7C8FA1;
  --border:#DDE7F0;
  --border-strong:#C2D3E1;

  /* --- Sur fond sombre --- */
  --on-dark:#EAF3F9;
  --on-dark-muted:rgba(234,243,249,.76);
  --on-dark-faint:rgba(234,243,249,.52);
  --on-dark-border:rgba(127,203,236,.22);

  /* --- Typographie --- */
  --font-display:'Space Grotesk',-apple-system,BlinkMacSystemFont,'Segoe UI',sans-serif;
  --font-sans:'Inter',-apple-system,BlinkMacSystemFont,'Segoe UI',sans-serif;

  /* --- Forme (shape lock) --- */
  --radius:12px;
  --radius-sm:8px;
  --radius-pill:999px;

  /* --- Profondeur en couches (ambient + direct) --- */
  --shadow-xs:0 1px 2px rgba(10,46,69,.05);
  --shadow-sm:0 1px 2px rgba(10,46,69,.05),0 4px 12px rgba(10,46,69,.06);
  --shadow-md:0 2px 4px rgba(10,46,69,.05),0 12px 28px rgba(10,46,69,.10);
  --shadow-lg:0 4px 8px rgba(10,46,69,.06),0 28px 56px rgba(10,46,69,.14);
  --ring:0 0 0 1px rgba(18,160,219,.35),0 8px 30px rgba(18,160,219,.18);

  /* --- Espacement (base 8) --- */
  --sp-1:.5rem;--sp-2:1rem;--sp-3:1.5rem;--sp-4:2rem;--sp-6:3rem;--sp-8:4rem;

  --maxw:1180px;
  --gutter:clamp(1.2rem,4vw,2.4rem);

  /* Motif constellation, echo du hero 3D */
  --dots:radial-gradient(rgba(127,203,236,.20) 1px,transparent 1px);
}

/* Reset ------------------------------------------------------------------- */
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  font-family:var(--font-sans);color:var(--text);background:var(--paper);
  line-height:1.62;font-size:clamp(1rem,.97rem + .16vw,1.06rem);
  -webkit-font-smoothing:antialiased;text-rendering:optimizeLegibility;overflow-x:hidden;
}
img{max-width:100%;display:block}
a{color:var(--brand-600);text-decoration:none;transition:color .2s ease}
a:hover{color:var(--navy)}
h1,h2,h3,h4{font-family:var(--font-display);color:var(--navy);font-weight:600;line-height:1.08;letter-spacing:-.02em}
h1{font-size:clamp(2.3rem,1.5rem + 3.2vw,3.7rem);letter-spacing:-.032em}
h2{font-size:clamp(1.8rem,1.25rem + 2.1vw,2.6rem);letter-spacing:-.026em}
h3{font-size:clamp(1.18rem,1.02rem + .6vw,1.42rem);letter-spacing:-.015em}
h4{font-size:1rem;font-family:var(--font-sans);font-weight:600;letter-spacing:0}
p{color:var(--text-muted)}
strong{color:var(--text);font-weight:600}
ul{list-style:none}
:focus-visible{outline:2px solid var(--brand);outline-offset:3px;border-radius:4px}
::selection{background:var(--brand);color:#fff}

/* Utilitaires ------------------------------------------------------------- */
.container{width:100%;max-width:var(--maxw);margin-inline:auto;padding-inline:var(--gutter)}
.section{padding-block:clamp(3.8rem,2.4rem + 5.5vw,7rem);position:relative}
.section--soft{background:var(--paper-2)}
/* Filet degrade en tete de section douce : rythme et separation nette */
.section--soft::before{content:"";position:absolute;top:0;left:0;right:0;height:1px;
  background:linear-gradient(90deg,transparent,var(--brand-300),transparent);opacity:.7}
.section--ink{background:linear-gradient(165deg,var(--navy) 0%,var(--ink) 66%,var(--ink-900) 100%);color:var(--on-dark);position:relative;overflow:hidden}
.section--ink::before{content:"";position:absolute;inset:0;pointer-events:none;
  background-image:var(--dots);background-size:26px 26px;opacity:.5;
  mask-image:radial-gradient(80% 60% at 80% 10%,#000,transparent 70%);
  -webkit-mask-image:radial-gradient(80% 60% at 80% 10%,#000,transparent 70%)}
.section--ink>*{position:relative;z-index:1}
.section--ink h1,.section--ink h2,.section--ink h3{color:#fff}
.section--ink p{color:var(--on-dark-muted)}
.section--flush-top{padding-top:0}
.eyebrow{
  font-family:var(--font-sans);font-weight:600;font-size:.74rem;letter-spacing:.16em;
  text-transform:uppercase;color:var(--brand-600);display:inline-flex;align-items:center;gap:.6rem;
}
.eyebrow::before{content:"";width:26px;height:2px;border-radius:2px;background:var(--brand)}
.eyebrow--plain::before{display:none}
.section--ink .eyebrow{color:var(--brand-300)}
.lead{font-size:clamp(1.12rem,1rem + .55vw,1.36rem);line-height:1.48;color:var(--text);max-width:60ch;font-weight:400}
.section--ink .lead{color:var(--on-dark)}
.muted{color:var(--text-muted)}
.mx-auto{margin-inline:auto}
.tnum{font-variant-numeric:tabular-nums}
.mt-1{margin-top:.5rem}.mt-2{margin-top:1rem}.mt-3{margin-top:1.7rem}.mt-4{margin-top:2.75rem}
.gold-rule,.accent-rule{width:52px;height:3px;background:var(--brand);border-radius:3px;margin:1.4rem 0}
.section-head{max-width:52ch}
.section-head--center{margin-inline:auto;text-align:center}
.section-head h2{margin-top:.8rem}
.section-head p{margin-top:.95rem}

/* Boutons ----------------------------------------------------------------- */
.btn{
  --tx:0px;--ty:0px;
  display:inline-flex;align-items:center;justify-content:center;gap:.55rem;
  font-family:var(--font-sans);font-weight:600;font-size:.96rem;
  min-height:44px;padding:.85rem 1.6rem;border-radius:var(--radius-sm);
  border:1px solid transparent;cursor:pointer;white-space:nowrap;line-height:1.1;
  transform:translate(var(--tx),var(--ty));
  transition:transform .18s cubic-bezier(.16,1,.3,1),box-shadow .24s ease,background .2s ease,color .2s ease,border-color .2s ease;
}
.btn svg{flex:none}
/* Attraction magnetique : --tx/--ty pilotes au pointeur sur les CTA principaux */
.btn:hover{transform:translate(var(--tx),calc(var(--ty) - 2px))}
.btn:active{transform:translate(var(--tx),var(--ty)) scale(.98)}
.btn--primary{background:var(--navy);color:#fff;box-shadow:var(--shadow-sm)}
.btn--primary:hover{background:var(--navy-700);color:#fff;box-shadow:0 10px 26px rgba(11,58,86,.28)}
.btn--accent{background:var(--brand);color:#06263A;box-shadow:0 6px 20px rgba(18,160,219,.3)}
.btn--accent:hover{background:#3EB4E4;color:#06263A;box-shadow:0 12px 30px rgba(18,160,219,.42)}
.btn--outline{background:var(--surface);color:var(--navy);border-color:var(--border-strong);box-shadow:var(--shadow-xs)}
.btn--outline:hover{border-color:var(--brand);color:var(--brand-600);box-shadow:var(--shadow-sm)}
.btn--on-dark{background:#fff;color:var(--navy);border-color:#fff}
.btn--on-dark:hover{background:var(--brand-050);color:var(--navy);box-shadow:0 12px 30px rgba(0,0,0,.22)}
.btn--ghost-dark{background:rgba(255,255,255,.06);color:var(--on-dark);border-color:var(--on-dark-border);backdrop-filter:blur(6px)}
.btn--ghost-dark:hover{border-color:var(--brand-300);color:#fff;background:rgba(18,160,219,.16)}
.btn--lg{min-height:52px;padding:1rem 1.95rem;font-size:1.02rem}
.btn--block{width:100%}

.arrow-link{font-family:var(--font-sans);font-weight:600;font-size:.92rem;color:var(--brand-600);
  display:inline-flex;align-items:center;gap:.45rem;padding-block:.35rem}
.arrow-link svg{transition:transform .24s cubic-bezier(.16,1,.3,1)}
.arrow-link:hover{color:var(--navy)}
.arrow-link:hover svg{transform:translateX(5px)}
.section--ink .arrow-link{color:var(--brand-300)}
.section--ink .arrow-link:hover{color:#fff}

/* Header ------------------------------------------------------------------ */
.skip-link{position:absolute;left:-999px;top:0;z-index:200;background:var(--navy);color:#fff;padding:.7rem 1rem;border-radius:var(--radius-sm)}
.skip-link:focus{left:.6rem;top:.6rem;color:#fff}
.site-header{
  position:sticky;top:0;z-index:100;background:rgba(245,248,251,.78);
  backdrop-filter:blur(16px) saturate(140%);-webkit-backdrop-filter:blur(16px) saturate(140%);
  border-bottom:1px solid transparent;transition:box-shadow .3s ease,border-color .3s ease,background .3s ease;
}
.site-header.is-scrolled{box-shadow:0 1px 0 rgba(194,211,225,.6),0 6px 24px rgba(10,46,69,.07);border-color:transparent;background:rgba(245,248,251,.94)}
.nav{display:flex;align-items:center;justify-content:space-between;height:74px}
.nav__logo{display:flex;align-items:center;gap:.65rem;border-radius:12px}
.nav__logo img{height:44px;width:44px;border-radius:10px;box-shadow:0 4px 14px rgba(18,160,219,.3);transition:transform .24s cubic-bezier(.16,1,.3,1),box-shadow .24s ease}
.nav__logo:hover img{transform:translateY(-1px);box-shadow:0 8px 22px rgba(18,160,219,.42)}
.nav__menu{display:flex;align-items:center;gap:2.1rem}
/* padding-block porte la cible a 44px de haut (recommandation tactile) */
.nav__link{font-family:var(--font-sans);font-weight:500;font-size:.95rem;color:var(--text);position:relative;padding:.62rem 0}
.nav__link::after{content:"";position:absolute;left:0;bottom:.4rem;width:0;height:2px;border-radius:2px;
  background:linear-gradient(90deg,var(--brand),var(--brand-300));transition:width .28s cubic-bezier(.16,1,.3,1)}
.nav__link:hover{color:var(--navy)}
.nav__link:hover::after,.nav__link[aria-current="page"]::after{width:100%}
.nav__link[aria-current="page"]{color:var(--navy)}
.nav__cta{margin-left:.3rem}
.nav__toggle{display:none;background:none;border:0;cursor:pointer;padding:.6rem;margin-right:-.6rem;min-width:44px;min-height:44px}
.nav__toggle span{display:block;width:24px;height:2px;background:var(--navy);margin:5px 0;border-radius:2px;transition:transform .3s ease,opacity .2s ease}
.nav__toggle[aria-expanded="true"] span:nth-child(1){transform:translateY(7px) rotate(45deg)}
.nav__toggle[aria-expanded="true"] span:nth-child(2){opacity:0}
.nav__toggle[aria-expanded="true"] span:nth-child(3){transform:translateY(-7px) rotate(-45deg)}

@media (max-width:960px){
  .nav__toggle{display:block}
  .nav__menu{
    position:fixed;inset:74px 0 auto 0;flex-direction:column;align-items:stretch;gap:.2rem;
    background:var(--surface);padding:1rem var(--gutter) 1.6rem;border-bottom:1px solid var(--border);
    box-shadow:var(--shadow-md);transform:translateY(-125%);transition:transform .36s cubic-bezier(.16,1,.3,1);
  }
  .nav__menu.is-open{transform:translateY(0)}
  .nav__link{width:100%;padding:.85rem 0;font-size:1.05rem;border-bottom:1px solid var(--border);min-height:44px}
  .nav__link::after{display:none}
  .nav__cta{width:100%;margin:1rem 0 0}
}

/* Hero accueil (canvas 3D) ------------------------------------------------ */
.hero{position:relative;overflow:hidden;background:radial-gradient(130% 120% at 78% 12%,#12507A 0%,var(--ink) 46%,var(--ink-900) 100%);color:var(--on-dark);isolation:isolate}
.hero__canvas{position:absolute;inset:0;z-index:1;width:100%;height:100%;display:block;pointer-events:none}
.hero::after{content:"";position:absolute;inset:0;z-index:2;pointer-events:none;
  background:linear-gradient(100deg,var(--ink-900) 0%,rgba(6,30,46,.84) 30%,rgba(6,30,46,.28) 56%,transparent 74%)}
/* Fondu bas : transition douce vers le contenu */
.hero::before{content:"";position:absolute;left:0;right:0;bottom:0;height:120px;z-index:3;pointer-events:none;
  background:linear-gradient(180deg,transparent,var(--paper))}
.hero__inner{position:relative;z-index:4;display:grid;gap:1rem;align-items:center;
  min-height:min(80vh,700px);padding-block:clamp(3.6rem,2rem + 6vw,6.5rem);max-width:44rem}
.hero__eyebrow{color:var(--brand-300)}
.hero h1{color:#fff;max-width:16ch;margin-top:1.4rem;text-shadow:0 2px 30px rgba(6,30,46,.5)}
.hero h1 .accent{color:var(--brand-300)}
.hero__sub{color:var(--on-dark-muted);font-size:clamp(1.08rem,1rem + .5vw,1.28rem);max-width:46ch;margin-top:1.4rem;line-height:1.55}
.hero__cta{display:flex;gap:.9rem;flex-wrap:wrap;margin-top:2.2rem}
@media (max-width:640px){
  .hero__inner{min-height:auto;padding-block:clamp(2.8rem,2rem + 6vw,4rem)}
  .hero::after{background:linear-gradient(180deg,rgba(6,30,46,.5) 0%,rgba(6,30,46,.88) 62%)}
}

/* Bandeau chiffres -------------------------------------------------------- */
.figure-band{display:grid;grid-template-columns:repeat(3,1fr);border-block:1px solid var(--border-strong)}
.figure-band .fig{padding:clamp(1.8rem,3vw,2.6rem) 1.5rem;border-left:1px solid var(--border-strong);position:relative}
.figure-band .fig:first-child{border-left:0;padding-left:0}
.figure-band .fig .n{font-family:var(--font-display);font-weight:600;font-size:clamp(2.3rem,1.6rem + 2.6vw,3.3rem);
  line-height:1;font-variant-numeric:tabular-nums;letter-spacing:-.03em;
  background:linear-gradient(135deg,var(--navy),var(--brand));-webkit-background-clip:text;background-clip:text;color:transparent}
.figure-band .fig .l{margin-top:.8rem;color:var(--text-muted);font-size:.95rem;max-width:24ch}
@media (max-width:720px){
  .figure-band{grid-template-columns:1fr}
  .figure-band .fig{border-left:0;border-top:1px solid var(--border-strong);padding-left:0}
  .figure-band .fig:first-child{border-top:0}
}

/* Statement editorial ----------------------------------------------------- */
.statement{max-width:34ch}
.statement p.big{font-family:var(--font-display);font-size:clamp(1.6rem,1.05rem + 1.9vw,2.3rem);line-height:1.16;
  color:var(--navy);font-weight:500;letter-spacing:-.028em;max-width:22ch;text-wrap:balance}
.statement p.big .accent{color:var(--brand)}
.statement-grid{display:grid;grid-template-columns:1.05fr 1.15fr;gap:clamp(2rem,4vw,3.6rem);align-items:start}
.statement-grid .body p{margin-bottom:1.15rem;font-size:1.06rem}
.statement-grid .body p:last-child{margin-bottom:0}
@media (max-width:820px){.statement-grid{grid-template-columns:1fr;gap:1.6rem}.statement,.statement p.big{max-width:34ch}}

/* Liste d'expertises (accueil) ------------------------------------------- */
.exp-list{display:grid;grid-template-columns:1fr 1fr;gap:0 clamp(2rem,4vw,3.6rem)}
@media (max-width:800px){.exp-list{grid-template-columns:1fr}}
.exp-item{position:relative;display:block;padding:1.8rem 1rem 1.8rem 0;border-top:1px solid var(--border);
  transition:border-color .25s ease,padding .25s ease,background .25s ease}
.exp-item::after{content:"";position:absolute;top:-1px;left:0;width:0;height:2px;
  background:linear-gradient(90deg,var(--brand),var(--brand-300));transition:width .4s cubic-bezier(.16,1,.3,1)}
.exp-item:hover{padding-left:.9rem;background:linear-gradient(90deg,rgba(18,160,219,.05),transparent 60%)}
.exp-item:hover::after{width:100%}
.exp-item__no{font-family:var(--font-display);font-weight:600;font-size:.82rem;letter-spacing:.08em;color:var(--brand);font-variant-numeric:tabular-nums}
.exp-item h3{margin:.55rem 0;display:flex;align-items:center;gap:.6rem;transition:color .2s ease}
.exp-item:hover h3{color:var(--brand-600)}
.exp-item h3 svg{opacity:0;transform:translateX(-6px);transition:opacity .24s ease,transform .24s cubic-bezier(.16,1,.3,1);color:var(--brand)}
.exp-item:hover h3 svg{opacity:1;transform:translateX(0)}
.exp-item p{font-size:.98rem;max-width:44ch}

/* Cartes expertises (hub) ------------------------------------------------- */
.exp-cards{display:grid;grid-template-columns:repeat(3,1fr);gap:1.5rem}
@media (max-width:900px){.exp-cards{grid-template-columns:1fr 1fr}}
@media (max-width:600px){.exp-cards{grid-template-columns:1fr}}
.exp-card{--lift:0px;--rx:0deg;--ry:0deg;--mx:50%;--my:50%;
  position:relative;display:flex;flex-direction:column;background:var(--surface);
  border:1px solid var(--border);border-radius:var(--radius);padding:1.9rem 1.75rem;
  box-shadow:var(--shadow-sm);overflow:hidden;transform-style:preserve-3d;
  transform:perspective(900px) rotateX(var(--rx)) rotateY(var(--ry)) translateY(var(--lift));
  transition:transform .35s cubic-bezier(.16,1,.3,1),box-shadow .3s ease,border-color .3s ease}
.exp-card::before{content:"";position:absolute;left:0;top:0;height:3px;width:0;z-index:2;
  background:linear-gradient(90deg,var(--brand),var(--brand-300));transition:width .38s cubic-bezier(.16,1,.3,1)}
/* Halo qui suit le pointeur : guide le regard sans masquer le texte */
.exp-card::after{content:"";position:absolute;inset:0;z-index:0;pointer-events:none;opacity:0;
  background:radial-gradient(240px circle at var(--mx) var(--my),rgba(18,160,219,.13),transparent 70%);
  transition:opacity .35s ease}
.exp-card>*{position:relative;z-index:1}
.exp-card:hover{--lift:-6px;box-shadow:var(--shadow-lg);border-color:var(--brand-100)}
.exp-card:hover::before{width:100%}
.exp-card:hover::after{opacity:1}
.exp-card__ic{width:50px;height:50px;border-radius:var(--radius-sm);display:grid;place-items:center;
  color:var(--brand-600);margin-bottom:1.2rem;background:linear-gradient(150deg,var(--brand-050),var(--brand-100));
  box-shadow:inset 0 1px 0 #fff;transition:transform .3s cubic-bezier(.16,1,.3,1)}
.exp-card:hover .exp-card__ic{transform:scale(1.06) rotate(-3deg)}
.exp-card h3{font-size:1.2rem;margin-bottom:.55rem}
.exp-card p{font-size:.96rem;flex:1}
.exp-card .arrow-link{margin-top:1.3rem}

/* Approche (fond sombre) -------------------------------------------------- */
.approach{display:grid;grid-template-columns:repeat(4,1fr);gap:1.7rem;counter-reset:step}
@media (max-width:900px){.approach{grid-template-columns:1fr 1fr;gap:2rem 1.5rem}}
@media (max-width:560px){.approach{grid-template-columns:1fr}}
.approach .step{padding-top:1.6rem;border-top:1px solid var(--on-dark-border);position:relative}
.approach .step::before{content:"";position:absolute;top:-1px;left:0;width:34px;height:2px;background:var(--brand)}
.approach .step__no{counter-increment:step;font-family:var(--font-display);font-weight:600;font-size:1.6rem;
  color:var(--brand-300);font-variant-numeric:tabular-nums}
.approach .step__no::before{content:"0" counter(step)}
.approach .step h3{color:#fff;font-size:1.16rem;margin:.75rem 0 .5rem}
.approach .step p{font-size:.95rem}

/* Piliers ----------------------------------------------------------------- */
.pillars-grid{display:grid;grid-template-columns:1fr 1fr;gap:clamp(2rem,4vw,3.6rem);align-items:start}
@media (max-width:820px){.pillars-grid{grid-template-columns:1fr;gap:1.8rem}}
.pillars{display:grid;gap:1.6rem}
.pillar{display:grid;grid-template-columns:auto 1fr;gap:1.15rem;align-items:start;padding-bottom:1.6rem;border-bottom:1px solid var(--border)}
.pillar:last-child{border-bottom:0;padding-bottom:0}
.pillar__ic{width:46px;height:46px;border-radius:var(--radius-sm);display:grid;place-items:center;color:var(--brand-600);flex:none;
  background:linear-gradient(150deg,var(--brand-050),var(--brand-100));box-shadow:inset 0 1px 0 #fff}
.pillar h3{font-size:1.1rem;margin-bottom:.32rem}
.pillar p{font-size:.96rem;margin:0}

/* Citations --------------------------------------------------------------- */
.quotes{display:grid;grid-template-columns:1fr 1fr;gap:1.6rem}
@media (max-width:760px){.quotes{grid-template-columns:1fr}}
.quote{position:relative;background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);
  padding:2rem 1.9rem;box-shadow:var(--shadow-sm);overflow:hidden}
.quote::before{content:"";position:absolute;left:0;top:0;bottom:0;width:3px;background:linear-gradient(180deg,var(--brand),var(--brand-300))}
.quote__mark{font-family:var(--font-display);font-size:2.8rem;line-height:.6;color:var(--brand-300);display:block;height:1rem}
.quote p{color:var(--text);font-size:1.07rem;line-height:1.5;margin-top:1.1rem}
.quote figcaption{margin-top:1.3rem;font-family:var(--font-sans);font-size:.88rem;color:var(--text-muted)}
.quote figcaption strong{display:block;color:var(--navy);font-weight:600;font-size:.95rem}

/* CTA final --------------------------------------------------------------- */
.cta-band{border-radius:var(--radius);padding:clamp(2.8rem,1.8rem + 3vw,4.6rem);text-align:center;position:relative;overflow:hidden}
.cta-band::after{content:"";position:absolute;inset:0;pointer-events:none;
  background:radial-gradient(80% 130% at 50% -10%,rgba(18,160,219,.32),transparent 58%)}
.cta-band>*{position:relative;z-index:2}
.cta-band h2{color:#fff}
.cta-band p{margin-inline:auto;margin-top:.85rem}

/* Page hero (pages internes) : meme famille visuelle que le hero 3D ------- */
.page-hero{position:relative;overflow:hidden;color:var(--on-dark);
  background:radial-gradient(120% 140% at 82% 0%,#12507A 0%,var(--ink) 48%,var(--ink-900) 100%);
  padding-block:clamp(3rem,2rem + 4.5vw,5rem)}
/* Constellation : rappel discret des noeuds 3D de l'accueil */
.page-hero::before{content:"";position:absolute;inset:0;pointer-events:none;
  background-image:var(--dots);background-size:24px 24px;opacity:.75;
  mask-image:radial-gradient(70% 80% at 85% 15%,#000,transparent 72%);
  -webkit-mask-image:radial-gradient(70% 80% at 85% 15%,#000,transparent 72%)}
.page-hero::after{content:"";position:absolute;left:0;right:0;bottom:0;height:64px;pointer-events:none;
  background:linear-gradient(180deg,transparent,rgba(245,248,251,.14))}
/* Scene 3D d'en-tete : chaque page porte sa propre geometrie */
.page-hero__canvas{position:absolute;inset:0;z-index:0;width:100%;height:100%;display:block;pointer-events:none;opacity:.9}
@media (max-width:640px){.page-hero__canvas{opacity:.5}}
.page-hero .container{position:relative;z-index:1}
.page-hero h1{color:#fff;max-width:20ch}
.page-hero p{color:var(--on-dark-muted);max-width:58ch;margin-top:1.05rem;font-size:1.1rem}
.crumbs{font-size:.84rem;color:var(--on-dark-faint);margin-bottom:1.3rem;display:flex;gap:.5rem;flex-wrap:wrap;align-items:center}
.crumbs a{color:var(--on-dark-muted);display:inline-block;padding-block:.2rem}
.crumbs a:hover{color:#fff}
.crumbs .sep{color:var(--on-dark-faint)}

/* Prose ------------------------------------------------------------------- */
.layout-2col{display:grid;grid-template-columns:1.55fr .95fr;gap:clamp(2rem,4vw,3.6rem);align-items:start}
@media (max-width:860px){.layout-2col{grid-template-columns:1fr}}
.prose{max-width:68ch}
.prose h2{margin:2.6rem 0 .9rem;font-size:clamp(1.4rem,1.1rem + 1vw,1.75rem);padding-left:.9rem;position:relative}
/* Marqueur azur : repere visuel dans les pages textuelles */
.prose h2::before{content:"";position:absolute;left:0;top:.18em;bottom:.18em;width:3px;border-radius:2px;
  background:linear-gradient(180deg,var(--brand),var(--brand-300))}
.prose h2:first-child{margin-top:0}
.prose h3{margin:1.8rem 0 .5rem}
.prose p{margin-bottom:1.1rem}
.prose>ul{display:grid;gap:.6rem;margin:0 0 1.4rem}
.prose>ul li{position:relative;padding-left:1.5rem;color:var(--text)}
.prose>ul li::before{content:"";position:absolute;left:0;top:.62em;width:6px;height:6px;border-radius:50%;background:var(--brand)}
.checks{display:grid;gap:.75rem;margin:0 0 1.5rem}
.checks li{position:relative;padding-left:2.1rem;color:var(--text)}
.checks li::before{content:"";position:absolute;left:0;top:.02em;width:23px;height:23px;border-radius:var(--radius-sm);
  background:linear-gradient(150deg,var(--brand-050),var(--brand-100));box-shadow:inset 0 1px 0 #fff;
  background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='14' height='14' viewBox='0 0 24 24' fill='none' stroke='%230B7FB0' stroke-width='3' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpolyline points='20 6 9 17 4 12'/%3E%3C/svg%3E");
  background-repeat:no-repeat;background-position:center}

/* Encart lateral ---------------------------------------------------------- */
.aside-card{position:sticky;top:96px;background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);
  padding:1.8rem;box-shadow:var(--shadow-md);overflow:hidden}
.aside-card::before{content:"";position:absolute;left:0;right:0;top:0;height:3px;background:linear-gradient(90deg,var(--brand),var(--brand-300))}
.aside-card h3{font-size:1.18rem;margin-bottom:.5rem}
.aside-card p{font-size:.95rem}
.badge{display:inline-block;background:linear-gradient(150deg,var(--brand-050),var(--brand-100));color:var(--brand-600);
  font-family:var(--font-sans);font-weight:600;font-size:.74rem;letter-spacing:.06em;text-transform:uppercase;
  padding:.34rem .75rem;border-radius:var(--radius-pill);margin-bottom:.95rem}
.aside-links{display:grid;gap:.55rem;margin-top:.2rem}
.aside-links a{font-size:.94rem;color:var(--text);display:flex;justify-content:space-between;gap:.5rem;padding:.4rem 0;
  border-bottom:1px solid var(--border);transition:color .2s ease,padding-left .2s ease}
.aside-links a:last-child{border-bottom:0}
.aside-links a:hover{color:var(--brand-600);padding-left:.3rem}
.aside-links a span{color:var(--brand)}

/* FAQ --------------------------------------------------------------------- */
.faq{display:grid;gap:.75rem;max-width:72ch}
.faq details{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius-sm);padding:0 1.35rem;
  transition:border-color .22s ease,box-shadow .22s ease}
.faq details:hover{border-color:var(--brand-100)}
.faq details[open]{box-shadow:var(--shadow-sm);border-color:var(--brand-100)}
.faq summary{font-family:var(--font-display);font-weight:600;font-size:1.04rem;color:var(--navy);cursor:pointer;
  padding:1.15rem 0;list-style:none;display:flex;justify-content:space-between;align-items:center;gap:1rem;min-height:44px}
.faq summary::-webkit-details-marker{display:none}
.faq summary::after{content:"";width:13px;height:13px;flex:none;
  background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='13' height='13' viewBox='0 0 24 24' fill='none' stroke='%2312A0DB' stroke-width='2.5' stroke-linecap='round'%3E%3Cpath d='M12 5v14M5 12h14'/%3E%3C/svg%3E");
  background-repeat:no-repeat;background-position:center;transition:transform .28s cubic-bezier(.16,1,.3,1)}
.faq details[open] summary::after{transform:rotate(135deg)}
.faq details p{padding-bottom:1.2rem;margin:0}

/* Formulaire -------------------------------------------------------------- */
.form-grid{display:grid;grid-template-columns:1fr 1fr;gap:1.15rem}
@media (max-width:600px){.form-grid{grid-template-columns:1fr}}
.field{display:flex;flex-direction:column;gap:.42rem}
.field.full{grid-column:1/-1}
.field label{font-family:var(--font-sans);font-weight:600;font-size:.88rem;color:var(--navy)}
.field .opt{color:var(--text-faint);font-weight:400}
.field input,.field textarea,.field select{
  font-family:var(--font-sans);font-size:1rem;padding:.85rem .95rem;color:var(--text);min-height:44px;
  border:1px solid var(--border-strong);border-radius:var(--radius-sm);background:var(--surface);
  transition:border-color .18s ease,box-shadow .18s ease;
}
.field input::placeholder,.field textarea::placeholder{color:var(--text-faint)}
.field input:focus,.field textarea:focus,.field select:focus{outline:none;border-color:var(--brand);box-shadow:0 0 0 3px rgba(18,160,219,.2)}
.field textarea{min-height:145px;resize:vertical}
.hp{position:absolute;left:-9999px;width:1px;height:1px;overflow:hidden}
.form-status{font-size:.92rem;font-weight:500}
.form-status.is-ok{color:#146B4A}
.form-status.is-err{color:#B02A20}
.consent{font-size:.82rem;color:var(--text-muted)}

/* Coordonnees ------------------------------------------------------------- */
.contact-info{display:grid;gap:1.25rem}
.contact-info li{display:flex;gap:1rem;align-items:flex-start}
.contact-info .ic{flex:none;width:44px;height:44px;border-radius:var(--radius-sm);display:grid;place-items:center;color:var(--brand-600);
  background:linear-gradient(150deg,var(--brand-050),var(--brand-100));box-shadow:inset 0 1px 0 #fff}
.contact-info strong{display:block;color:var(--navy);font-size:.92rem;margin-bottom:.15rem}
/* tel: et mailto: sont les actions principales sur mobile : cibles confortables */
.contact-info a{color:var(--text);display:inline-block;padding-block:.4rem}
.contact-info a:hover{color:var(--brand-600)}
.map-frame{margin-top:1.7rem;border-radius:var(--radius);overflow:hidden;border:1px solid var(--border);box-shadow:var(--shadow-sm)}
.map-frame iframe{border:0;display:block;width:100%;height:250px}

/* Ressources -------------------------------------------------------------- */
.res-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:1.5rem}
@media (max-width:900px){.res-grid{grid-template-columns:1fr 1fr}}
@media (max-width:600px){.res-grid{grid-template-columns:1fr}}
.res-card{--lift:0px;--rx:0deg;--ry:0deg;--mx:50%;--my:50%;
  position:relative;display:flex;flex-direction:column;background:var(--surface);border:1px solid var(--border);
  border-radius:var(--radius);padding:1.8rem;box-shadow:var(--shadow-sm);overflow:hidden;transform-style:preserve-3d;
  transform:perspective(900px) rotateX(var(--rx)) rotateY(var(--ry)) translateY(var(--lift));
  transition:transform .35s cubic-bezier(.16,1,.3,1),box-shadow .3s ease,border-color .3s ease}
.res-card::before{content:"";position:absolute;left:0;top:0;height:3px;width:0;z-index:2;
  background:linear-gradient(90deg,var(--brand),var(--brand-300));transition:width .38s cubic-bezier(.16,1,.3,1)}
.res-card::after{content:"";position:absolute;inset:0;z-index:0;pointer-events:none;opacity:0;
  background:radial-gradient(240px circle at var(--mx) var(--my),rgba(18,160,219,.13),transparent 70%);
  transition:opacity .35s ease}
.res-card>*{position:relative;z-index:1}
.res-card:hover{--lift:-5px;box-shadow:var(--shadow-lg);border-color:var(--brand-100)}
.res-card:hover::before{width:100%}
.res-card:hover::after{opacity:1}
.res-card h3{font-size:1.14rem;margin:.25rem 0 .55rem;line-height:1.25}
.res-card p{font-size:.94rem;flex:1}
.res-card .arrow-link{margin-top:1.1rem}

/* Footer ------------------------------------------------------------------ */
.site-footer{background:var(--ink-900);color:var(--on-dark-muted);padding-block:3.6rem 1.8rem;position:relative}
.site-footer::before{content:"";position:absolute;top:0;left:0;right:0;height:2px;
  background:linear-gradient(90deg,var(--navy),var(--brand),var(--brand-300),var(--navy))}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.3fr;gap:2.4rem}
@media (max-width:820px){.footer-grid{grid-template-columns:1fr 1fr}}
@media (max-width:520px){.footer-grid{grid-template-columns:1fr}}
.footer-brand{display:flex;align-items:center;gap:.7rem;margin-bottom:1.1rem}
.footer-brand img{height:48px;width:48px;border-radius:11px;box-shadow:0 6px 18px rgba(18,160,219,.28)}
.site-footer p{color:var(--on-dark-faint);max-width:34ch;font-size:.95rem}
.site-footer h4{color:#fff;font-size:.78rem;letter-spacing:.12em;text-transform:uppercase;font-family:var(--font-sans);margin-bottom:1.1rem}
.site-footer ul{display:grid;gap:.35rem}
/* padding-block : cibles confortables au pouce dans le pied de page */
.site-footer ul a{display:inline-block;padding-block:.45rem}
.site-footer a{color:var(--on-dark-muted);font-size:.94rem;transition:color .2s ease,padding-left .2s ease}
.site-footer a:hover{color:#fff}
.footer-grid ul a:hover{padding-left:.25rem}
.footer-addr{color:var(--on-dark-faint);font-size:.9rem;line-height:1.55}
.footer-social{display:flex;gap:.7rem;margin-top:1.1rem}
.footer-social a{width:44px;height:44px;border-radius:var(--radius-sm);background:rgba(127,203,236,.12);display:grid;place-items:center;color:#fff;
  transition:background .22s ease,transform .22s cubic-bezier(.16,1,.3,1)}
.footer-social a:hover{background:var(--brand);transform:translateY(-2px);padding-left:0}
.footer-bottom{border-top:1px solid var(--on-dark-border);margin-top:2.8rem;padding-top:1.6rem;display:flex;
  justify-content:space-between;gap:1rem;flex-wrap:wrap;font-size:.84rem;color:var(--on-dark-faint)}
.footer-bottom a{color:var(--on-dark-faint);display:inline-block;padding-block:.3rem}
.footer-bottom a:hover{color:#fff}

/* Progression de lecture -------------------------------------------------- */
.scroll-progress{position:fixed;top:0;left:0;width:100%;height:2px;z-index:200;pointer-events:none;
  transform:scaleX(0);transform-origin:0 50%;
  background:linear-gradient(90deg,var(--brand),var(--brand-300))}

/* Reveal (robuste : visible sans JS) -------------------------------------
   On anime la propriete independante `translate`, jamais `transform` :
   sinon la revelation ecraserait les transformations propres aux composants
   (basculement 3D des cartes, survol des boutons) par specificite. */
.has-js .reveal{opacity:0;translate:0 24px;transition:opacity .75s ease,translate .75s cubic-bezier(.16,1,.3,1)}
.has-js .reveal.is-visible{opacity:1;translate:0 0}
.has-js .reveal[data-delay="1"]{transition-delay:.08s}
.has-js .reveal[data-delay="2"]{transition-delay:.16s}
.has-js .reveal[data-delay="3"]{transition-delay:.24s}
.has-js .reveal[data-delay="4"]{transition-delay:.32s}

/* Reduction du mouvement -------------------------------------------------- */
@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{animation-duration:.001ms!important;animation-iteration-count:1!important;transition-duration:.001ms!important;scroll-behavior:auto!important}
  .has-js .reveal{opacity:1;translate:0 0}
  .btn:hover,.exp-card:hover,.res-card:hover,.footer-social a:hover{transform:none}
  .scroll-progress{display:none}
}

/* ==========================================================================
   REFONTE 2026 - Couche haut de gamme
   Techniques natives (aucune dependance, aucun build) :
   View Transitions, animations pilotees par le scroll, typographie cinetique.
   Tout est en amelioration progressive : si le navigateur ne supporte pas,
   le site reste identique et fonctionnel.
   ========================================================================== */

/* --- Transitions entre pages : la navigation ne "coupe" plus ------------- */
@view-transition { navigation: auto; }
::view-transition-old(root){animation:vt-out .26s cubic-bezier(.4,0,1,1) both}
::view-transition-new(root){animation:vt-in .42s cubic-bezier(.16,1,.3,1) both}
@keyframes vt-out{to{opacity:0;transform:translateY(-6px)}}
@keyframes vt-in{from{opacity:0;transform:translateY(12px)}}
/* l'en-tete persiste d'une page a l'autre : sensation d'application */
.site-header{view-transition-name:site-header}
.nav__logo img{view-transition-name:brand-mark}

/* --- Typographie cinetique : le titre se compose mot a mot --------------- */
.kinetic{display:inline}
.kinetic .w{display:inline-block;white-space:pre}
.has-js .kinetic .w{opacity:0;transform:translateY(.44em);animation:kin .78s cubic-bezier(.16,1,.3,1) forwards;
  animation-delay:calc(var(--i,0) * 65ms)}
@keyframes kin{to{opacity:1;transform:none}}

/* --- Halo qui suit le curseur sur les surfaces sombres ------------------- */
.hero,.page-hero,.section--ink,.cta-band{--sx:50%;--sy:50%}
/* on exclut .cta-band, qui possede deja son propre halo permanent */
.section--ink:not(.cta-band)::after{content:"";position:absolute;inset:0;z-index:0;pointer-events:none;opacity:0;
  background:radial-gradient(520px circle at var(--sx) var(--sy),rgba(18,160,219,.16),transparent 62%);
  transition:opacity .45s ease}
.section--ink:not(.cta-band):hover::after{opacity:1}

/* --- Methode : cartes qui s'empilent au scroll (sticky natif) ------------ */
.stack{display:grid;gap:1.2rem}
.stack__item{position:sticky;top:96px;background:linear-gradient(160deg,rgba(18,80,122,.72),rgba(10,46,69,.9));
  border:1px solid var(--on-dark-border);border-radius:var(--radius);padding:clamp(1.6rem,1rem + 2vw,2.4rem);
  backdrop-filter:blur(8px);-webkit-backdrop-filter:blur(8px);box-shadow:0 20px 50px rgba(3,15,24,.35)}
.stack__item:nth-child(1){top:96px}
.stack__item:nth-child(2){top:112px}
.stack__item:nth-child(3){top:128px}
.stack__item:nth-child(4){top:144px}
.stack__no{font-family:var(--font-display);font-weight:600;font-size:1.05rem;color:var(--brand-300);
  font-variant-numeric:tabular-nums;letter-spacing:.06em}
.stack__item h3{color:#fff;font-size:clamp(1.2rem,1rem + .8vw,1.5rem);margin:.5rem 0 .5rem}
.stack__item p{max-width:56ch}
.stack__head{display:flex;align-items:baseline;gap:1rem;justify-content:space-between}
.stack__rule{flex:1;height:1px;background:linear-gradient(90deg,var(--on-dark-border),transparent)}
@media (max-width:640px){.stack__item{position:static;top:auto}}

/* --- Bandeau defilant : les types d'operations --------------------------- */
.marquee{overflow:hidden;--gap:2.8rem;
  -webkit-mask-image:linear-gradient(90deg,transparent,#000 7%,#000 93%,transparent);
          mask-image:linear-gradient(90deg,transparent,#000 7%,#000 93%,transparent)}
.marquee__track{display:flex;gap:var(--gap);width:max-content;will-change:transform;animation:marq 42s linear infinite}
.marquee:hover .marquee__track{animation-play-state:paused}
.marquee__item{font-family:var(--font-display);font-weight:500;font-size:clamp(1rem,.9rem + .5vw,1.25rem);
  color:var(--text-muted);display:inline-flex;align-items:center;gap:var(--gap);white-space:nowrap}
.marquee__item::after{content:"";width:5px;height:5px;border-radius:50%;background:var(--brand);opacity:.55}
@keyframes marq{to{transform:translateX(calc(-50% - var(--gap)/2))}}

/* --- Bandeau partenaires ------------------------------------------------- */
/* Les logos sont des marques tierces : on les neutralise en gris pour qu'ils
   ne concurrencent pas l'azur de la marque, la couleur revient au survol. */
.partners{
  list-style:none;display:grid;gap:1px;background:var(--border);
  grid-template-columns:repeat(auto-fit,minmax(200px,1fr));
  border:1px solid var(--border);border-radius:var(--radius);overflow:hidden;
}
.partners__item{
  display:flex;align-items:center;justify-content:center;
  background:var(--surface);padding:var(--sp-3) var(--sp-2);min-height:118px;
}
.partners__item img{
  width:auto;max-width:170px;max-height:52px;object-fit:contain;
  filter:grayscale(1);opacity:.62;
  transition:filter .3s ease,opacity .3s ease,transform .3s ease;
}
.partners__item:hover img{filter:none;opacity:1;transform:scale(1.03)}
@media (max-width:520px){
  .partners{grid-template-columns:repeat(2,1fr)}
  .partners__item{min-height:96px;padding:var(--sp-2) 1rem}
  .partners__item img{max-width:120px;max-height:40px}
}
@media (prefers-reduced-motion:reduce){
  .partners__item img,.partners__item:hover img{transition:none;transform:none}
}

/* --- Animations pilotees par le scroll (natif, hors thread principal) ---- */
@supports (animation-timeline: view()) {
  @media (prefers-reduced-motion: no-preference){
    /* la scene 3D du hero s'eloigne doucement quand on quitte l'ecran */
    .hero__canvas{animation:heroDrift linear both;animation-timeline:view();animation-range:exit 0% exit 100%}
    @keyframes heroDrift{to{transform:translateY(10%) scale(1.05);opacity:.3}}
    /* les grands titres de section se composent a l'approche */
    .section-head h2{animation:headUp linear both;animation-timeline:view();animation-range:entry 10% entry 65%}
    @keyframes headUp{from{opacity:.25;transform:translateY(18px)}to{opacity:1;transform:none}}
  }
}

/* --- Finitions typographiques ------------------------------------------- */
h1,h2,.statement p.big{text-wrap:balance}
p,.lead{text-wrap:pretty}

@media (prefers-reduced-motion:reduce){
  .has-js .kinetic .w{opacity:1;transform:none;animation:none}
  .marquee__track{animation:none}
  ::view-transition-old(root),::view-transition-new(root){animation:none}
}

/* ==========================================================================
   REGISTRE INTERNE - Pages de fond
   L'accueil affirme ; les pages internes laissent le contenu primer.
   Codes des boutiques de conseil financier : respiration, trait fin, sobriete.
   ========================================================================== */

/* Constellation plus discrete que sur l'accueil */
.page-hero::before{opacity:.4}

/* --- Sommaire actif : suit la lecture, ancre dans les pages longues ------ */
.toc{margin-bottom:1.4rem;padding-bottom:1.4rem;border-bottom:1px solid var(--border)}
.toc__title{font-family:var(--font-sans);font-weight:600;font-size:.72rem;letter-spacing:.14em;
  text-transform:uppercase;color:var(--text-faint);margin-bottom:.9rem}
.toc ul{display:grid;gap:.1rem}
.toc a{display:block;position:relative;padding:.5rem 0 .5rem 1rem;font-size:.94rem;line-height:1.4;
  color:var(--text-muted);border-left:2px solid var(--border);transition:color .2s ease,border-color .2s ease,padding-left .2s ease}
.toc a::before{content:"";position:absolute;left:-2px;top:50%;height:0;width:2px;background:var(--brand);
  transform:translateY(-50%);transition:height .3s cubic-bezier(.16,1,.3,1)}
.toc a:hover{color:var(--navy);padding-left:1.25rem}
.toc a.is-current{color:var(--navy);font-weight:600}
.toc a.is-current::before{height:100%}
/* le titre vise ne doit pas passer sous l'en-tete collant */
.prose h2{scroll-margin-top:104px}
@media (max-width:860px){.toc{display:none}}

/* Davantage d'air : le vide est un signal de serieux dans ce metier */
.page-hero{padding-block:clamp(3.6rem,2.4rem + 5vw,6rem)}
.page-hero h1{max-width:22ch}
.page-hero p{margin-top:1.25rem;max-width:56ch}

/* Lecture editoriale : mesure et interlignage plus genereux */
.prose{line-height:1.72}
.prose p{margin-bottom:1.25rem}
.prose h2{margin-top:3rem}

/* Cartes internes : elevation douce, sans basculement */
.exp-card:hover,.res-card:hover{box-shadow:var(--shadow-md)}