/* ====================================================================
   ELA ASSISTANTE® — Design system partagé (refonte 2026)
   Source de vérité : charte promo.ela-assistant.com (DA validée Laura)
   Apple / fonio — blanc dominant, monochrome noir, accent vert discret.
   ❌ JAMAIS de violet criard / dégradés "IA". Couleur maîtrisée.
   ==================================================================== */

:root{
  --ink:#0c0b10;        /* noir profond — titres, boutons, sections sombres */
  --body:#56555c;       /* texte courant */
  --muted:#8e8d95;      /* texte discret, notes */
  --line:#ececed;       /* filets, bordures cartes */
  --bg:#ffffff;         /* fond dominant */
  --accent:#0c0b10;     /* accent = noir (monochrome) */
  --wash:#f6f6f7;       /* fonds doux alternés */
  --halo:#f0f0f2;       /* halos flous hero */
  --halo2:#eef0f2;
  --blue:#148cc8;      /* SEUL point de couleur : pastilles "en ligne" + ✓ */
  --radius:18px;
  --radius-btn:13px;
  --maxw:1040px;
}

*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{font-family:-apple-system,BlinkMacSystemFont,"SF Pro Display","Segoe UI",Inter,Roboto,sans-serif;
  color:var(--ink);background:var(--bg);line-height:1.5;-webkit-font-smoothing:antialiased}
.wrap{max-width:var(--maxw);margin:0 auto;padding:0 22px}
h1,h2,h3{letter-spacing:-.03em;line-height:1.1;font-weight:700}
a{text-decoration:none;color:inherit}
img{max-width:100%;display:block}

/* ---------- Eyebrow / badge ---------- */
.eyebrow{display:inline-flex;align-items:center;gap:7px;font-size:13px;font-weight:600;color:var(--body);
  background:#fff;border:1px solid var(--line);padding:7px 13px;border-radius:100px}
.eyebrow .dot{width:7px;height:7px;border-radius:50%;background:var(--blue);box-shadow:0 0 0 4px rgba(20,140,200,.16);
  animation:pulse 2.4s infinite}

/* ---------- Boutons ---------- */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:9px;font-weight:600;font-size:16px;
  border-radius:var(--radius-btn);padding:15px 24px;cursor:pointer;border:1px solid transparent;
  transition:transform .18s,opacity .18s,border-color .18s,background .18s;white-space:nowrap}
.btn-dark,.btn-accent{background:var(--ink);color:#fff}
.btn-dark:hover,.btn-accent:hover{transform:translateY(-1px);opacity:.92}
.btn-soft{background:#fff;color:var(--ink);border:1px solid var(--line)}
.btn-soft:hover{border-color:#cfccdd;transform:translateY(-1px)}
.btn-sm{padding:10px 16px;font-size:14.5px;border-radius:11px}
.btn-block{width:100%}
.link-cta{font-size:15px;font-weight:600;color:var(--body)}
.link-cta:hover{color:var(--ink)}

/* ---------- Header sticky ---------- */
header{position:sticky;top:0;z-index:50;background:rgba(255,255,255,.82);backdrop-filter:blur(12px);
  border-bottom:1px solid rgba(236,235,240,.7)}
.nav{display:flex;align-items:center;justify-content:space-between;gap:32px;height:62px}
.brand{font-weight:700;font-size:16px;letter-spacing:-.02em;display:flex;align-items:center;gap:9px;white-space:nowrap;flex-shrink:0}
.brand img{width:30px;height:30px;border-radius:8px}
.nav-links{display:flex;align-items:center;gap:22px}
.nav-links a{font-size:14.5px;font-weight:500;color:var(--body);transition:color .18s;white-space:nowrap}
.nav-links a:hover{color:var(--ink)}
.nav-links a.active{color:var(--ink)}
.nav-toggle{display:none;background:none;border:0;font-size:22px;cursor:pointer;color:var(--ink)}

/* ---------- Dropdown "Pour Qui ?" ---------- */
.nav-dropdown{position:relative;display:inline-flex;align-items:center}
.nav-dropdown-toggle{background:none;border:0;font-size:14.5px;font-weight:500;color:var(--body);cursor:pointer;
  padding:0;display:inline-flex;align-items:center;gap:4px;transition:color .18s;font-family:inherit;position:relative;white-space:nowrap}
.nav-dropdown-toggle:hover{color:var(--ink)}
.nav-dropdown-toggle::after{content:"";position:absolute;left:0;bottom:-4px;height:1.5px;width:0;background:var(--ink);transition:width .25s}
.nav-dropdown-toggle:hover::after,.nav-dropdown.open .nav-dropdown-toggle::after{width:100%}
.nav-dropdown-menu{display:none;position:absolute;top:calc(100% + 12px);left:50%;transform:translateX(-50%);
  background:#fff;border:1px solid var(--line);border-radius:14px;padding:10px;min-width:240px;
  box-shadow:0 12px 32px -14px rgba(12,11,16,.2);z-index:99}
.nav-dropdown.open .nav-dropdown-menu{display:block}
.nav-dropdown-menu a{display:block;padding:9px 13px;font-size:13.5px;font-weight:500;color:var(--body);
  border-radius:9px;transition:background .15s}
.nav-dropdown-menu a:hover{background:var(--wash);color:var(--ink)}
.nav-dropdown-menu a::after{display:none}
.nav-dropdown-menu a.active{color:var(--blue);background:var(--wash)}

/* ---------- Sections ---------- */
section.block{padding:74px 0}
.head-c{text-align:center;max-width:640px;margin:0 auto 46px}
.head-c .eyebrow{margin-bottom:16px}
.head-c h2{font-size:34px}
.head-c p{font-size:17.5px;color:var(--body);margin-top:14px}
.wash{background:var(--wash)}
.dark{background:var(--ink);color:#fff}
.dark .head-c h2{color:#fff}
.dark .head-c p{color:#c9c6d4}
.dark .eyebrow{background:rgba(255,255,255,.08);border-color:rgba(255,255,255,.14);color:#e7e5ef}

/* ---------- Cartes / grilles ---------- */
.grid2{display:grid;grid-template-columns:repeat(2,1fr);gap:18px}
.grid3{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
.grid4{display:grid;grid-template-columns:repeat(4,1fr);gap:16px}
.cell{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:26px;
  transition:transform .22s ease,box-shadow .22s ease,border-color .22s}
.cell:hover{transform:translateY(-4px);box-shadow:0 24px 50px -34px rgba(20,16,40,.32);border-color:#e0dfe4}
.cell .ic{width:44px;height:44px;border-radius:12px;background:var(--wash);display:grid;place-items:center;
  font-size:21px;margin-bottom:16px}
.cell h3{font-size:18px}
.cell p{font-size:15px;color:var(--body);margin-top:9px}

/* ---------- FAQ ---------- */
.faq{max-width:680px;margin:0 auto}
details{border-bottom:1px solid var(--line);padding:18px 0}
summary{font-size:16.5px;font-weight:600;cursor:pointer;list-style:none;display:flex;
  justify-content:space-between;align-items:center;gap:14px}
summary::-webkit-details-marker{display:none}
summary::after{content:"+";color:var(--accent);font-size:22px;font-weight:400;transition:transform .2s}
details[open] summary::after{transform:rotate(45deg)}
details p{font-size:15px;color:var(--body);margin-top:12px;line-height:1.6}

/* ---------- Footer ---------- */
footer{padding:42px 0;text-align:center;border-top:1px solid var(--line)}
footer .brand{justify-content:center;margin-bottom:14px}
footer p{font-size:13.5px;color:var(--muted);line-height:1.8}
footer a{color:var(--body);font-weight:500}
footer a:hover{color:var(--ink)}

/* ====================================================================
   ANIMATIONS — sobres, dans l'esprit Apple (jamais clinquant "IA")
   ==================================================================== */

/* Apparition au scroll (à activer en JS : .reveal -> .in) */
.reveal{opacity:0;transform:translateY(22px);transition:opacity .7s cubic-bezier(.2,.7,.3,1),transform .7s cubic-bezier(.2,.7,.3,1)}
.reveal.in{opacity:1;transform:none}
.reveal-l{opacity:0;transform:translateX(-26px);transition:opacity .7s cubic-bezier(.2,.7,.3,1),transform .7s cubic-bezier(.2,.7,.3,1)}
.reveal-l.in{opacity:1;transform:none}
.reveal-r{opacity:0;transform:translateX(26px);transition:opacity .7s cubic-bezier(.2,.7,.3,1),transform .7s cubic-bezier(.2,.7,.3,1)}
.reveal-r.in{opacity:1;transform:none}
.reveal-scale{opacity:0;transform:scale(.96);transition:opacity .6s ease,transform .6s cubic-bezier(.2,.7,.3,1)}
.reveal-scale.in{opacity:1;transform:none}

/* Stagger : délais en cascade sur les enfants successifs */
.stagger > *{transition-delay:0s}
.stagger.in > *:nth-child(1){transition-delay:.04s}
.stagger.in > *:nth-child(2){transition-delay:.12s}
.stagger.in > *:nth-child(3){transition-delay:.20s}
.stagger.in > *:nth-child(4){transition-delay:.28s}
.stagger.in > *:nth-child(5){transition-delay:.36s}
.stagger.in > *:nth-child(6){transition-delay:.44s}

/* Pastille "en ligne" qui respire */
@keyframes pulse{0%{box-shadow:0 0 0 0 rgba(20,140,200,.30)}70%{box-shadow:0 0 0 7px rgba(20,140,200,0)}100%{box-shadow:0 0 0 0 rgba(20,140,200,0)}}

/* Halos hero qui flottent doucement */
@keyframes floaty{0%,100%{transform:translate(0,0)}50%{transform:translate(14px,-18px)}}

/* Bulles de chat qui apparaissent */
@keyframes pop{to{opacity:1;transform:none}}
.bub{opacity:0;transform:translateY(8px);animation:pop .4s forwards}

/* Bouton qui "shine" discrètement au survol (optionnel) */
.btn-shine{position:relative;overflow:hidden}
.btn-shine::after{content:"";position:absolute;top:0;left:-120%;width:60%;height:100%;
  background:linear-gradient(120deg,transparent,rgba(255,255,255,.25),transparent);transform:skewX(-18deg)}
.btn-shine:hover::after{animation:shine .8s ease}
@keyframes shine{to{left:140%}}

/* Soulignement animé des liens de nav */
.nav-links a{position:relative}
.nav-links a::after{content:"";position:absolute;left:0;bottom:-4px;height:1.5px;width:0;background:var(--ink);transition:width .25s}
.nav-links a:hover::after,.nav-links a.active::after{width:100%}

/* ---------- Couches d'effets canvas (ela-fx.js) ----------
   .fx-layer : conteneur du canvas, toujours DERRIÈRE le contenu.
   Le contenu de la section doit être dans un élément avec position:relative;z-index:1.
   Usage : <section style="position:relative;overflow:hidden" data-fx-neural="light">
             <div class="fx-layer"></div>    ← canvas injecté ici par ela-fx.js
             <div class="wrap" style="position:relative;z-index:1">…</div>
           </section>
   Note : ela-fx.js injecte son canvas directement sur l'élément portant le data-attr ;
          .fx-layer est utile si on veut un wrapper dédié, mais n'est pas obligatoire. */
.fx-layer{position:absolute;inset:0;overflow:hidden;pointer-events:none;z-index:0}

/* Respect de l'accessibilité : on coupe tout si l'utilisateur le demande */
@media(prefers-reduced-motion:reduce){
  *{animation:none!important}
  .reveal,.reveal-l,.reveal-r,.reveal-scale{opacity:1!important;transform:none!important;transition:none!important}
  html{scroll-behavior:auto}
}

/* ---------- Responsive ---------- */
@media(max-width:780px){
  section.block{padding:54px 0}
  .head-c h2{font-size:26px}
  .head-c p{font-size:16px}
  .grid3,.grid4,.grid2{grid-template-columns:1fr}
  .grid4{grid-template-columns:1fr 1fr}
  .nav-links{display:none}
  .nav-toggle{display:block}

  /* ===== Menu mobile : drawer propre plein ecran ===== */
  .nav-links.open{
    display:flex;flex-direction:column;align-items:stretch;gap:0;
    position:fixed;top:62px;left:0;right:0;
    height:calc(100dvh - 62px);overflow-y:auto;-webkit-overflow-scrolling:touch;
    background:#fff;border-top:1px solid var(--line);
    padding:6px 0 32px;z-index:60
  }
  .nav-links.open > a{
    display:block;width:100%;text-align:left;
    padding:17px 24px;font-size:16.5px;font-weight:600;color:var(--ink);
    border-bottom:1px solid var(--line)
  }
  .nav-links.open > a:active,.nav-links.open > a:hover{background:var(--wash)}
  .nav-links.open > a::after{display:none}
  .nav-links.open .nav-dropdown{display:block;width:100%}
  .nav-links.open .nav-dropdown-toggle{
    width:100%;text-align:left;justify-content:flex-start;
    padding:17px 24px;font-size:16.5px;font-weight:600;color:var(--ink);
    border-bottom:1px solid var(--line)
  }
  .nav-links.open .nav-dropdown-menu{
    display:block;position:static;transform:none;box-shadow:none;border:none;border-radius:0;
    padding:0;min-width:unset;background:var(--wash)
  }
  .nav-links.open .nav-dropdown-menu a{
    display:block;padding:14px 24px 14px 42px;font-size:15px;font-weight:500;color:var(--body);
    border-bottom:1px solid var(--line);border-radius:0
  }
  .nav-links.open .nav-dropdown-menu a:active,.nav-links.open .nav-dropdown-menu a:hover{background:#fff;color:var(--blue)}
  .nav-links.open .nav-dropdown-menu a.active{color:var(--blue);font-weight:600}
  .nav-links.open .btn{margin:22px 24px 0;width:calc(100% - 48px);justify-content:center;padding:16px}
  .nav-dropdown-toggle::after{display:none}
}


/* ===== RESPONSIVE hero : pastilles visibles + taille reduite sur mobile ===== */
/* overflow-x bloque le scroll horizontal SANS masquer les pastilles dans le viewport */
html,body{overflow-x:hidden}
@media(max-width:1024px){
  /* On conserve les pastilles visibles : plus de display:none sur orbit-chip / hero-chip */
  /* Les rayons sont reduits cote JS (index.html) et cote CSS (pages secteur) */
  .hero-ring-2{display:none!important}
  /* hero/scene : overflow visible pour que les pastilles debordant legerement restent lisibles */
  .hero{overflow:visible}
  .hero-scene{overflow:visible;max-width:100%!important}
  .hero-mascotte-wrap{max-width:100%!important;overflow:visible}
  .hero-mascotte-img{max-width:210px!important}
  .stage{overflow:hidden!important}
  /* Pastilles orbit (index.html) : taille reduite tablette */
  .orbit-chip{font-size:11px!important;padding:7px 10px!important;gap:5px!important}
  .orbit-chip .chip-ico{font-size:12px!important}
  /* Pastilles secteur (hero-chip) : taille reduite tablette */
  .hero-chip{font-size:11px!important;padding:7px 10px!important;gap:5px!important}
}
@media(max-width:480px){
  /* Anneaux masques sur tres petit ecran pour lisibilite */
  .hero-ring,.hero-ring-1,.hero-ring-3{display:none!important}
  .hero-mascotte-img{max-width:160px!important}
  /* Pastilles encore plus compactes sur 360-480px */
  .orbit-chip{font-size:10px!important;padding:5px 8px!important;gap:4px!important}
  .orbit-chip .chip-ico{font-size:11px!important}
  .hero-chip{font-size:10px!important;padding:5px 8px!important;gap:4px!important}
}

/* ============ FOOTER (partagé — réparé 04/06 : footer cassé sur checkout/cgv/mentions/confidentialite + secteurs) ============ */
.footer-ela{padding:52px 0;border-top:1px solid var(--line)}
.footer-inner{display:grid;grid-template-columns:1.8fr 1fr 1fr 1fr;gap:36px;margin-bottom:40px}
.footer-brand{font-weight:700;font-size:15px;letter-spacing:-.02em;display:flex;align-items:center;gap:9px;margin-bottom:14px}
.footer-brand img{width:28px;height:28px;border-radius:7px}
.footer-about{font-size:13px;color:var(--muted);line-height:1.7;max-width:300px}
.footer-social{display:flex;gap:10px;margin-top:16px;flex-wrap:wrap}
.footer-soc-lnk{padding:7px 13px;background:var(--wash);border:1px solid var(--line);border-radius:9px;font-size:12.5px;font-weight:500;color:var(--body);transition:border-color .2s,color .2s}
.footer-soc-lnk:hover{border-color:var(--ink);color:var(--ink)}
.footer-col h4{font-size:12px;font-weight:700;text-transform:uppercase;letter-spacing:.1em;color:var(--ink);margin-bottom:14px}
.footer-col ul{list-style:none;padding:0;display:flex;flex-direction:column;gap:9px}
.footer-col ul li a{font-size:13px;color:var(--body);transition:color .2s}
.footer-col ul li a:hover{color:var(--ink)}
.footer-bottom{border-top:1px solid var(--line);padding-top:22px;display:flex;flex-direction:column;align-items:center;text-align:center;gap:12px}
.footer-copy{font-size:12.5px;color:var(--muted);line-height:1.6;max-width:880px}
.footer-legal{display:flex;gap:18px;flex-wrap:wrap;justify-content:center}
.footer-legal a{font-size:12.5px;color:var(--muted);transition:color .2s}
.footer-legal a:hover{color:var(--ink)}
@media(max-width:960px){.footer-inner{grid-template-columns:1fr 1fr}}
@media(max-width:780px){.footer-inner{grid-template-columns:1fr}}