/* ============================================================
   Implant-IA · design system
   Structure et composants inspirés du langage Audeon (11/2026) :
   fond blanc, filets fins, surlignés mono en capitales, titres
   serrés, cartes arrondies à hover accent, footer wordmark géant.
   Charte Implant-IA conservée : marine + sarcelle.
   Zéro requête tierce : polices auto-hébergées dans fonts/.
   ============================================================ */

@font-face{
  font-family:"Inter Tight";
  src:url("fonts/inter-tight-var.woff2") format("woff2");
  font-weight:400 700;font-style:normal;font-display:swap;
}
@font-face{
  font-family:"JetBrains Mono";
  src:url("fonts/jetbrains-mono-var.woff2") format("woff2");
  font-weight:400 600;font-style:normal;font-display:swap;
}

:root{
  --marine:#16294A;
  --encre:#24395B;
  --subtle:#5B6774;
  --accent:#22C8D6;
  --accent-ink:#0C8794;      /* sarcelle foncé : texte et liens sur blanc */
  --accent-tint:#E7FBFC;
  --bg:#FFFFFF;
  --surface:#F4F7FA;
  --surface-hl:#EAF6F8;
  --border:#E3E9EF;
  --font-sans:"Inter Tight",-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,Helvetica,Arial,sans-serif;
  --font-mono:"JetBrains Mono",ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;
}

*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  font-family:var(--font-sans);color:var(--encre);background:var(--bg);
  line-height:1.6;font-size:1.05rem;-webkit-font-smoothing:antialiased;
}
::selection{background:rgba(34,200,214,.35)}
img{max-width:100%}

.wrap{max-width:1140px;margin:0 auto;padding:0 1.5rem}
section{padding:5.5rem 0;scroll-margin-top:4.5rem}
section.alt{background:var(--surface)}

/* ---------- typographie ---------- */
.eyebrow{
  font-family:var(--font-mono);text-transform:uppercase;letter-spacing:.16em;
  color:var(--subtle);font-size:.75rem;font-weight:500;margin-bottom:1.1rem;
}
h1,h2{font-weight:600;letter-spacing:-.03em;line-height:1.08;color:var(--marine)}
h1{font-size:clamp(2.5rem,6vw,4.1rem)}
h2{font-size:clamp(1.75rem,3.6vw,2.5rem);margin-bottom:1.2rem}
h3{font-size:1.25rem;font-weight:600;letter-spacing:-.01em;color:var(--marine);margin:1.9rem 0 .55rem}
p{max-width:46rem}
p+p{margin-top:.8rem}
.lead{font-size:1.18rem;color:var(--subtle);max-width:44rem}
.note{font-size:.92rem;color:var(--subtle);max-width:46rem;margin-top:1.6rem}
.note a{color:var(--accent-ink)}
a{text-decoration-color:rgba(34,200,214,.5)}
.hl{background:linear-gradient(transparent 62%,rgba(34,200,214,.4) 62%)}

/* ---------- boutons et liens ---------- */
.btn{
  display:inline-flex;align-items:center;gap:.5rem;background:var(--accent);color:var(--marine);
  font-weight:600;font-size:1rem;text-decoration:none;padding:.85rem 1.5rem;border-radius:.5rem;
  transition:opacity .2s;border:none;cursor:pointer;
}
.btn:hover{opacity:.88}
.btn.ghost{background:transparent;color:var(--marine);border:1px solid var(--border)}
.btn.ghost:hover{opacity:1;background:var(--surface-hl);border-color:var(--accent)}
.link-fleche{
  display:inline-flex;align-items:center;gap:.45rem;font-weight:500;color:var(--marine);
  text-decoration:none;font-size:1rem;
}
.link-fleche:hover{color:var(--accent-ink)}
.link-fleche .fl{color:var(--accent-ink);transition:transform .2s;font-weight:600}
.link-fleche:hover .fl{transform:translateX(3px)}

/* ---------- pastilles mono ---------- */
.pill{
  display:inline-block;font-family:var(--font-mono);font-size:.66rem;font-weight:600;
  letter-spacing:.12em;text-transform:uppercase;color:var(--accent-ink);
  border:1px solid var(--border);background:#fff;border-radius:999px;
  padding:.32rem .8rem;margin-bottom:.9rem;
}

/* ---------- navigation fixe ---------- */
.nav{
  position:fixed;top:0;left:0;right:0;z-index:50;
  background:#fff;
  border-bottom:1px solid var(--border);
}
.nav .bar{display:flex;align-items:center;justify-content:space-between;height:4rem;position:relative}
.nav .bar img{height:32px;width:auto;display:block}
.nav .centre{position:absolute;left:50%;transform:translateX(-50%);display:flex;gap:1.9rem}
.nav .centre a{color:var(--encre);text-decoration:none;font-size:.93rem;font-weight:500;white-space:nowrap}
.nav .centre a:hover{color:var(--accent-ink)}
.nav .btn{padding:.6rem 1.2rem;font-size:.95rem}
main{padding-top:4rem}

/* ---------- hero ---------- */
.hero{padding:6.8rem 0 5.5rem}
.hero .ctas{display:flex;flex-wrap:wrap;align-items:center;gap:1rem 1.6rem;margin-top:2.2rem}
.hero .cible{
  margin-top:2rem;font-weight:600;color:var(--marine);max-width:44rem;
  border-left:3px solid var(--accent);padding-left:1.2rem;
}
.hero .sans{margin-top:1.4rem;font-size:.95rem;color:var(--subtle);max-width:44rem}
.hero .sans a{color:var(--subtle)}

/* ---------- bande formule ---------- */
.formule{border-top:1px solid var(--border);border-bottom:1px solid var(--border);padding:1.9rem 0}
.formule .ligne{display:flex;flex-wrap:wrap;align-items:center;justify-content:center;gap:.7rem 1rem}
.formule .bloc{
  font-family:var(--font-mono);text-transform:uppercase;letter-spacing:.12em;
  font-size:.78rem;font-weight:600;color:var(--marine);
  border:1px solid var(--border);border-radius:999px;padding:.5rem 1rem;background:#fff;
}
.formule .op{font-family:var(--font-mono);color:var(--accent-ink);font-weight:600}
.formule .resultat{font-weight:600;color:var(--marine);font-size:1.02rem}

/* ---------- cartes ---------- */
.grid-2{display:grid;grid-template-columns:1fr 1fr;gap:1.2rem;margin-top:2rem}
.grid-3{display:grid;grid-template-columns:repeat(3,1fr);gap:1.2rem;margin-top:2rem}
.card{
  background:#fff;border:1px solid var(--border);border-radius:1rem;
  padding:1.6rem 1.5rem;transition:border-color .2s;
}
.card:hover{border-color:var(--accent)}
.card h3{margin-top:0}
.card .pill{margin-bottom:.8rem}
.card p{font-size:.98rem;color:var(--subtle)}
.card.forte{border-color:var(--accent);box-shadow:0 8px 24px rgba(22,41,74,.07)}

/* ---------- liste à puces ---------- */
ul.pts{list-style:none;max-width:46rem}
ul.pts li{padding-left:1.5rem;position:relative;margin-bottom:.7rem}
ul.pts li::before{
  content:"";position:absolute;left:.15rem;top:.62em;
  width:.5rem;height:.5rem;border-radius:50%;background:var(--accent);
}

/* ---------- bande de chiffres sourcés ---------- */
.stats{display:grid;grid-template-columns:repeat(3,1fr);gap:1.5rem;margin:2.4rem 0 .4rem;max-width:52rem}
.stats .case{border-top:2px solid var(--accent);padding-top:1rem}
.stats .chiffre{
  font-size:clamp(2.2rem,4vw,3rem);font-weight:600;letter-spacing:-.03em;
  color:var(--accent-ink);line-height:1;
}
.stats .label{font-size:.95rem;color:var(--subtle);margin-top:.55rem;line-height:1.45;max-width:none}

/* ---------- tiroirs du coffre ---------- */
.tiroirs{counter-reset:t;list-style:none;margin-top:1.8rem;max-width:46rem}
.tiroirs li{display:flex;gap:1.2rem;align-items:baseline;padding:1rem 0;border-bottom:1px solid var(--border)}
.tiroirs li::before{
  counter-increment:t;content:counter(t,decimal-leading-zero);
  font-family:var(--font-mono);font-size:.85rem;font-weight:600;color:var(--accent-ink);flex:0 0 auto;
}
.tiroirs b{color:var(--marine)}
.tiroirs span{color:var(--subtle);font-size:.97rem}

/* ---------- section sombre (marine) ---------- */
.sombre{background:var(--marine);color:#D9E2EC}
.sombre .eyebrow{color:var(--accent)}
.sombre h2{color:#fff}
.sombre p{color:#D9E2EC}
.sombre a{color:var(--accent)}
.sombre .btn{color:var(--marine)}
.sombre .note{color:#8FA3B8}
.sombre .ligne-rouge{
  border-left:3px solid var(--accent);padding-left:1rem;margin-top:1.5rem;
  font-weight:600;color:#fff;max-width:46rem;
}
.sombre .trois{display:grid;grid-template-columns:repeat(3,1fr);gap:1rem;margin:1.8rem 0;max-width:52rem}
.sombre .trois>div{
  background:rgba(255,255,255,.06);border:1px solid rgba(255,255,255,.14);
  border-radius:1rem;padding:1.2rem 1.3rem;
}
.sombre .trois b{color:#fff;display:block;margin-bottom:.3rem}
.sombre .trois span{font-size:.95rem;color:#B9C7D8}

/* ---------- liste "installé" en 2 colonnes ---------- */
.installee{display:grid;grid-template-columns:1fr 1fr;gap:.4rem 2.4rem;margin-top:1.8rem;list-style:none;max-width:none}
.installee li{padding:.6rem 0 .6rem 1.6rem;position:relative;border-bottom:1px dashed var(--border)}
.installee li::before{
  content:"";position:absolute;left:.1rem;top:1.05em;
  width:.55rem;height:.55rem;border-radius:50%;background:var(--accent);
}
.installee b{color:var(--marine)}

/* ---------- déroulé : timeline à badges ---------- */
.phases{list-style:none;margin-top:2.4rem;max-width:52rem}
.phases>li{position:relative;padding:0 0 2.4rem 4.4rem}
.phases>li::before{content:"";position:absolute;left:1.35rem;top:2.6rem;bottom:.2rem;width:2px;background:var(--border)}
.phases>li:last-child{padding-bottom:.4rem}
.phases>li:last-child::before{display:none}
.phases .n{
  position:absolute;left:0;top:.05rem;width:2.9rem;height:2.2rem;border-radius:.55rem;
  background:rgba(34,200,214,.12);border:2px solid var(--accent);
  display:flex;align-items:center;justify-content:center;
  font-family:var(--font-mono);font-weight:600;font-size:.9rem;color:var(--accent-ink);z-index:1;
}
.phases h3{margin:0 0 .4rem;font-size:1.2rem}
.phases p{font-size:1rem}
.phases .de-vous{display:block;margin-top:.6rem;font-size:.93rem;color:var(--subtle)}
.phases .de-vous b{
  font-family:var(--font-mono);text-transform:uppercase;letter-spacing:.1em;
  font-size:.72rem;color:var(--accent-ink);font-weight:600;
}
.phases .sort{color:var(--marine);font-weight:600}

/* ---------- FAQ ---------- */
.faq-list{max-width:52rem}
details.faq{
  border:1px solid var(--border);border-radius:1rem;background:#fff;overflow:hidden;
  transition:border-color .2s,background .2s;
}
details.faq+details.faq{margin-top:.75rem}
details.faq[open]{border-color:var(--accent)}
details.faq summary{
  cursor:pointer;list-style:none;padding:1.15rem 1.4rem;font-weight:500;color:var(--marine);
  display:flex;justify-content:space-between;gap:1rem;align-items:center;
}
details.faq summary::-webkit-details-marker{display:none}
details.faq summary::after{content:"+";font-weight:400;font-size:1.4rem;color:var(--subtle);line-height:1;flex-shrink:0}
details.faq[open] summary::after{content:"−"}
details.faq summary:hover{background:var(--surface-hl)}
details.faq .rep{padding:0 1.4rem 1.2rem}
details.faq .rep p{max-width:none;font-size:.98rem}

/* ---------- tables ---------- */
table.tests{
  width:100%;border-collapse:separate;border-spacing:0;margin-top:1.5rem;
  background:#fff;border:1px solid var(--border);border-radius:1rem;overflow:hidden;max-width:52rem;
}
table.tests th{
  font-family:var(--font-mono);text-transform:uppercase;letter-spacing:.1em;
  font-size:.7rem;font-weight:600;color:var(--subtle);background:var(--surface);
  text-align:left;padding:.85rem 1.2rem;
}
table.tests td{padding:.95rem 1.2rem;border-top:1px solid var(--border);font-size:.97rem}
table.tests td:last-child{color:var(--marine);font-weight:600}

/* ---------- approches ratées : cartes numérotées ---------- */
.ratees{list-style:none;counter-reset:r;margin-top:1.6rem;display:grid;grid-template-columns:1fr 1fr;gap:1rem}
.ratees li{
  counter-increment:r;background:#fff;border:1px solid var(--border);border-radius:1rem;
  padding:1.2rem 1.3rem 1.2rem 3.6rem;position:relative;font-size:.97rem;color:var(--subtle);
  transition:border-color .2s;
}
.ratees li:hover{border-color:var(--accent)}
.ratees li::before{
  content:counter(r,decimal-leading-zero);position:absolute;left:1.25rem;top:1.25rem;
  font-family:var(--font-mono);font-size:.82rem;font-weight:600;color:var(--accent-ink);
}
.ratees b{display:block;color:var(--marine);margin-bottom:.25rem}

/* ---------- contact sombre ---------- */
#contact .ctas{display:flex;flex-wrap:wrap;align-items:center;gap:1rem 1.6rem;margin-top:1.6rem}
#contact .link-fleche{color:#fff}
#contact .link-fleche:hover{color:var(--accent)}
.parcours{list-style:none;counter-reset:p;margin:2rem 0;max-width:46rem}
.parcours li{
  counter-increment:p;display:flex;gap:1.2rem;padding:1rem 0;
  border-bottom:1px solid rgba(255,255,255,.14);
}
.parcours li::before{
  content:counter(p,decimal-leading-zero);font-family:var(--font-mono);
  font-weight:600;color:var(--accent);flex:0 0 auto;font-size:.9rem;
}
.parcours b{color:#fff}
.parcours span{color:#C7D4E3;font-size:.98rem}
.coord{margin-top:1.8rem;font-size:1.02rem;line-height:1.9;color:#E8EEF5;max-width:none}
.coord a{color:var(--accent);text-decoration:none;font-weight:600}
.coord a:hover{text-decoration:underline}

/* ---------- appels à l'action intermédiaires, urgence, barre mobile ---------- */
.cta-mid{display:flex;flex-wrap:wrap;align-items:center;gap:1rem 1.6rem;margin-top:2rem}
.hero .urgence{margin-top:1.4rem;font-size:.95rem;color:var(--marine);font-weight:500;max-width:44rem}
.hero .urgence .pill{margin:0 .5rem 0 0;vertical-align:middle}
.sombre .btn.ghost{color:#fff;border-color:rgba(255,255,255,.35)}
.sombre .btn.ghost:hover{background:rgba(255,255,255,.08);border-color:var(--accent)}
.barre-mobile{display:none}
@media (max-width:820px){
  .barre-mobile{
    display:flex;gap:.6rem;position:fixed;left:0;right:0;bottom:0;z-index:60;
    background:#fff;border-top:1px solid var(--border);
    padding:.6rem .9rem calc(.6rem + env(safe-area-inset-bottom));
  }
  .barre-mobile .btn{flex:1;justify-content:center;padding:.75rem .6rem;font-size:.95rem}
  body.avec-barre{padding-bottom:4.4rem}
}

/* ---------- texte + illustration côte à côte ---------- */
.duo{display:grid;grid-template-columns:1.1fr .9fr;gap:3.5rem;align-items:center}
.duo.haut{align-items:start}
.illu{width:100%;height:auto;display:block}
.illu.petite{max-width:360px;justify-self:center}
.portrait{
  background:#fff;border:1px solid var(--border);border-radius:1.2rem;overflow:hidden;
  max-width:340px;justify-self:center;box-shadow:0 8px 24px rgba(22,41,74,.07);margin-top:.5rem;
}
.portrait img{display:block;width:100%;height:auto}
.portrait figcaption{padding:1rem 1.2rem;border-top:1px solid var(--border)}
.portrait figcaption b{display:block;color:var(--marine)}
.portrait figcaption span{
  font-family:var(--font-mono);font-size:.68rem;letter-spacing:.08em;text-transform:uppercase;color:var(--subtle);
}

/* ---------- pictogrammes des cartes ---------- */
.ico{
  width:2.7rem;height:2.7rem;padding:.6rem;border-radius:.75rem;background:var(--accent-tint);
  fill:none;stroke:var(--accent-ink);stroke-width:1.8;stroke-linecap:round;stroke-linejoin:round;
  display:block;margin-bottom:.9rem;
}

/* ---------- frise de l'année ---------- */
.saison{display:flex;gap:.4rem;margin-top:2rem;max-width:52rem}
.saison .s{
  flex:2;background:#fff;border:1px solid var(--border);border-radius:.75rem;padding:.8rem .9rem;
  display:flex;flex-direction:column;gap:.2rem;min-width:0;
}
.saison .s.install{flex:5;background:var(--accent-tint);border-color:var(--accent)}
.saison .s.pleine{flex:3;background:var(--marine);border-color:var(--marine)}
.saison b{
  font-family:var(--font-mono);font-size:.68rem;letter-spacing:.08em;text-transform:uppercase;color:var(--accent-ink);
}
.saison span{font-size:.9rem;font-weight:600;color:var(--marine);line-height:1.3}
.saison .pleine b{color:var(--accent)}
.saison .pleine span{color:#fff}

/* ---------- fiche de contact ---------- */
.fiche-intro{padding-bottom:3.2rem}
.fiche-section{padding-top:3.2rem}
.fiche{max-width:46rem}
.fiche fieldset{
  border:1px solid var(--border);border-radius:1rem;background:#fff;
  padding:1.6rem 1.5rem 1.8rem;margin-bottom:1.4rem;min-width:0;
}
.fiche legend{
  font-size:1.25rem;font-weight:600;color:var(--marine);letter-spacing:-.01em;
  padding:0 .6rem;display:flex;align-items:center;gap:.6rem;
}
.fiche .num{
  font-family:var(--font-mono);font-size:.8rem;font-weight:600;color:var(--accent-ink);
  background:var(--accent-tint);border:1px solid var(--accent);border-radius:.45rem;padding:.15rem .5rem;
}
.fiche label{display:block;font-weight:600;color:var(--marine);margin:1.2rem 0 .4rem;font-size:.98rem}
.fiche abbr{color:var(--accent-ink);text-decoration:none}
.fiche input,.fiche select,.fiche textarea{
  width:100%;font:inherit;font-size:1rem;color:var(--encre);background:#fff;
  border:1px solid #C9D3DD;border-radius:.6rem;padding:.75rem .9rem;
}
.fiche textarea{resize:vertical;line-height:1.5}
.fiche input:focus,.fiche select:focus,.fiche textarea:focus{
  outline:2px solid var(--accent);outline-offset:1px;border-color:var(--accent);
}
.fiche ::placeholder{color:#9AA7B4}
.fiche .deux{display:grid;grid-template-columns:1fr 1fr;gap:0 1.2rem}
.fiche .aide{font-size:.9rem;color:var(--subtle);margin:0 0 .5rem;max-width:none}
.fiche .aide a{color:var(--accent-ink)}
.fiche button{margin:.4rem 0 1rem;font-family:inherit}
.fiche button:disabled{opacity:.6;cursor:default}
.fiche .pot{position:absolute;left:-9999px;width:1px;height:1px;overflow:hidden}
.fiche-ok{background:#fff;border:1px solid var(--accent);border-radius:1rem;padding:2rem 1.6rem}
.fiche-ok p{margin-top:.8rem}
@media (max-width:900px){
  .duo{grid-template-columns:1fr;gap:2.2rem}
  .hero .illu{max-width:460px}
  .fiche .deux{grid-template-columns:1fr}
}
@media (max-width:820px){
  .saison{flex-direction:column}
}

/* ---------- barre d'accès aux pages par secteur ---------- */
.secteurs{background:var(--surface);border-bottom:1px solid var(--border)}
.secteurs .wrap{display:flex;flex-wrap:wrap;align-items:center;gap:.5rem .6rem;padding-top:.75rem;padding-bottom:.75rem}
.secteurs .lib{
  font-family:var(--font-mono);text-transform:uppercase;letter-spacing:.14em;
  font-size:.68rem;font-weight:600;color:var(--subtle);margin-right:.4rem;
}
.chip{
  display:inline-flex;align-items:center;gap:.45rem;font-size:.92rem;font-weight:600;
  color:var(--marine);background:#fff;border:1px solid var(--border);border-radius:999px;
  padding:.45rem 1rem;text-decoration:none;transition:border-color .2s,background .2s;
}
a.chip:hover{border-color:var(--accent);background:var(--surface-hl)}
.chip.actif{background:var(--accent);border-color:var(--accent)}
.chip.bientot{color:var(--subtle);border-style:dashed;background:transparent;cursor:default}
.chip small{
  font-family:var(--font-mono);font-size:.6rem;letter-spacing:.1em;text-transform:uppercase;
  color:var(--accent-ink);font-weight:600;
}

@media (max-width:820px){
  .secteurs .wrap{flex-wrap:nowrap;overflow-x:auto;scrollbar-width:none}
  .secteurs .wrap::-webkit-scrollbar{display:none}
  .secteurs .lib{display:none}
  .chip{white-space:nowrap;flex:0 0 auto}
}

/* ---------- footer ---------- */
footer{border-top:1px solid var(--border);background:#fff;padding:3.4rem 0 2rem}
footer .haut{display:flex;justify-content:space-between;gap:1.5rem 3rem;flex-wrap:wrap;align-items:flex-start}
footer nav{display:flex;gap:1.8rem;flex-wrap:wrap}
footer nav a{color:var(--encre);text-decoration:none;font-weight:500;font-size:.92rem}
footer nav a:hover{color:var(--accent-ink)}
footer .politique{color:var(--subtle);font-size:.9rem;max-width:none}
footer .politique a{color:var(--subtle);font-weight:400}
footer .politique a:hover{color:var(--encre)}
footer .bas{display:flex;justify-content:space-between;align-items:flex-end;gap:1.5rem;margin-top:3rem}
footer .copyright{color:var(--subtle);font-size:.9rem;max-width:none}
footer .wordmark{
  font-weight:600;letter-spacing:-.045em;line-height:.9;color:var(--marine);
  font-size:clamp(3.6rem,13vw,8.5rem);user-select:none;white-space:nowrap;
}
footer .wordmark span{color:var(--accent-ink)}

/* ---------- apparition au défilement (sans JS : tout est visible) ---------- */
.reveal{opacity:0;transform:translateY(16px);transition:opacity .7s ease,transform .7s ease}
.reveal.active{opacity:1;transform:none}
@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}
  .reveal{opacity:1;transform:none;transition:none}
}

/* ---------- responsive ---------- */
@media (max-width:900px){
  .nav .centre{display:none}
}
@media (max-width:820px){
  section{padding:4rem 0}
  .hero{padding:5.5rem 0 4rem}
  .grid-2,.grid-3,.stats,.ratees,.installee,.sombre .trois{grid-template-columns:1fr}
  .stats{gap:1.4rem}
  .phases>li{padding-left:3.7rem}
  .phases .n{width:2.5rem;height:2rem;font-size:.82rem}
  footer .bas{flex-direction:column;align-items:flex-start;gap:1.5rem}
  footer .wordmark{font-size:clamp(3rem,16vw,5.5rem)}
}