/* =========================================================================
   Innovax Construction — feuille de style commune
   Palette officielle : #DD051F · #000000 · #C6C6C6 · #EDEDED
   ========================================================================= */

:root{
  --noir:#000000;
  --noir-2:#151515;
  --noir-3:#1F1F1F;
  --rouge:#DD051F;
  --rouge-2:#B00318;
  --rouge-3:#F01A33;
  --gris:#C6C6C6;
  --pale:#EDEDED;
  --blanc:#FFFFFF;
  --texte-2:#5E5E5E;
  --disp:"Barlow Condensed","Arial Narrow",Arial,sans-serif;
  --corps:"Inter",-apple-system,BlinkMacSystemFont,"Segoe UI",Helvetica,Arial,sans-serif;
  --max:1180px;
}

*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;background:var(--blanc);color:var(--noir);
  font-family:var(--corps);font-size:17px;line-height:1.62;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block}
a{color:inherit}
.wrap{max-width:var(--max);margin:0 auto;padding:0 24px}
.centre{text-align:center}

h1,h2,h3,h4,.num,.btn,.tel,nav a,button{font-family:var(--disp);text-transform:uppercase}
h1,h2,h3,h4{font-weight:700;letter-spacing:.01em;line-height:1.03;margin:0 0 18px}
h1{font-size:clamp(42px,6.6vw,78px)}
h2{font-size:clamp(30px,4.2vw,50px)}
h3{font-size:23px;letter-spacing:.03em;margin-bottom:9px}
h4{font-size:18px;letter-spacing:.05em;margin-bottom:7px}
p{margin:0 0 18px}
.lede{font-size:clamp(18px,1.9vw,21px);color:#333;max-width:64ch}
.petit{font-size:14px;color:var(--texte-2);line-height:1.5}
.kicker{
  display:inline-block;font-family:var(--disp);letter-spacing:.24em;font-size:15px;
  text-transform:uppercase;color:var(--rouge);margin-bottom:18px;
}
.kicker.clair{color:var(--rouge-3)}
.entete{max-width:66ch;margin-bottom:52px}

/* ---------------- en-tête ---------------- */
header{position:sticky;top:0;z-index:80;background:rgba(0,0,0,.97);backdrop-filter:saturate(140%) blur(6px)}
.bar{display:flex;align-items:center;gap:22px;height:82px}
.bar>a:first-child{display:block;flex:0 0 auto}
.bar img{height:54px;width:auto}
nav{margin-left:auto;display:flex;gap:24px}
nav a{
  font-size:17px;letter-spacing:.09em;color:#D2D2D2;text-decoration:none;
  padding:6px 0;border-bottom:2px solid transparent;
}
nav a:hover{color:#fff;border-color:var(--rouge)}
nav a[aria-current="page"]{color:#fff;border-color:var(--rouge)}
.tel{
  display:inline-flex;align-items:center;background:var(--rouge);color:#fff;
  font-size:19px;letter-spacing:.06em;padding:11px 20px;text-decoration:none;
}
.tel:hover{background:var(--rouge-3)}
.burger{display:none;margin-left:auto;background:none;border:0;color:#fff;font-size:26px;cursor:pointer;padding:6px 10px}

/* ---------------- héros ---------------- */
.hero{position:relative;background:var(--noir);color:#fff;overflow:hidden}
.hero .fond{position:absolute;top:0;right:0;bottom:0;left:0}
.hero .fond img{width:100%;height:100%;object-fit:cover;filter:grayscale(1) contrast(1.08)}
.hero .teinte{position:absolute;top:0;right:0;bottom:0;left:0;background:var(--rouge);opacity:.82;mix-blend-mode:multiply}
@supports (mix-blend-mode:multiply){.hero .teinte{opacity:.88}}
.hero .voile{position:absolute;top:0;right:0;bottom:0;left:0;background:linear-gradient(90deg,rgba(0,0,0,.62) 0%,rgba(0,0,0,.28) 55%,rgba(0,0,0,.5) 100%)}
.hero .wrap{position:relative;z-index:3;padding:118px 24px 124px}
.hero h1{max-width:17ch}
.hero p{color:#F3DADD;max-width:56ch;font-size:19px}
.hero-petit .wrap{padding:74px 24px 66px}
.hero-petit h1{font-size:clamp(36px,5vw,58px)}
.fil{font-size:13.5px;letter-spacing:.14em;text-transform:uppercase;color:#F0B9BF;margin-bottom:14px;font-family:var(--disp)}
.fil a{text-decoration:none}

.cta{display:flex;flex-wrap:wrap;gap:14px;margin-top:32px}
.btn{
  display:inline-block;font-size:20px;letter-spacing:.07em;padding:15px 30px;
  text-decoration:none;border:2px solid var(--rouge);background:var(--rouge);color:#fff;
}
.btn:hover{background:var(--rouge-3);border-color:var(--rouge-3)}
.btn-vide{background:transparent;border-color:#fff;color:#fff}
.btn-vide:hover{background:rgba(255,255,255,.14);border-color:#fff}
.btn-noir{background:var(--noir);border-color:var(--noir)}
.btn-noir:hover{background:var(--rouge);border-color:var(--rouge)}

/* ---------------- bandeau de confiance ---------------- */
.confiance{background:var(--noir-3);color:#fff}
.confiance .wrap{display:grid;grid-template-columns:repeat(4,1fr)}
.confiance div{padding:24px 22px;border-left:1px solid rgba(255,255,255,.12)}
.confiance div:first-child{border-left:0;padding-left:0}
.confiance b{display:block;font-family:var(--disp);font-size:22px;letter-spacing:.04em}
.confiance span{font-size:13.5px;color:#A8A8A8}

/* ---------------- sections ---------------- */
section{padding:94px 0}
.pale{background:var(--pale)}
.sombre{background:var(--noir);color:#fff}
.sombre .lede{color:#CFCFCF}
.sombre p{color:#C9C9C9}

/* grille de cartes */
.grille{display:grid;grid-template-columns:repeat(3,1fr);gap:2px;background:var(--gris)}
.carte{background:var(--blanc);padding:34px 30px 32px;transition:transform .2s,box-shadow .2s}
.carte:hover{transform:translateY(-3px);box-shadow:0 14px 30px rgba(0,0,0,.09)}
.pale .carte{background:var(--pale)}
.pale .carte:hover{background:var(--blanc)}
.num{display:block;font-size:15px;letter-spacing:.2em;color:var(--rouge);margin-bottom:14px}
.carte p{font-size:16px;color:#3C3C3C;margin:0}
.carte ul{margin:12px 0 0;padding-left:18px;font-size:15px;color:#3C3C3C}
.carte li{margin-bottom:5px}

/* deux colonnes texte + image */
.duo{display:grid;grid-template-columns:1fr 1fr;gap:56px;align-items:center}
.duo.large{grid-template-columns:1.1fr .9fr}
.photo{position:relative;overflow:hidden;background:var(--noir)}
.photo img{width:100%;height:100%;object-fit:cover;filter:grayscale(1) contrast(1.06);transition:filter .4s,transform .6s}
.photo:hover img{transform:scale(1.03)}
.photo.rouge::after{content:"";position:absolute;top:0;right:0;bottom:0;left:0;background:var(--rouge);mix-blend-mode:multiply;opacity:.8}
.photo .tag{
  position:absolute;left:0;bottom:0;z-index:3;background:var(--rouge);color:#fff;
  font-family:var(--disp);font-size:17px;letter-spacing:.08em;text-transform:uppercase;padding:9px 18px;
}

/* étapes */
.etapes{display:grid;grid-template-columns:repeat(4,1fr);gap:26px}
.etape{border-top:3px solid var(--rouge);padding-top:18px}
.sombre .etape{border-color:var(--rouge)}
.etape b{font-family:var(--disp);font-size:42px;display:block;line-height:1;color:var(--gris);margin-bottom:8px}
.sombre .etape b{color:#4A4A4A}
.etape p{font-size:15.5px;margin:0}

/* engagements */
.engage{display:grid;grid-template-columns:repeat(2,1fr);gap:2px;background:var(--gris)}
.engage article{background:var(--blanc);padding:30px 28px;display:flex;gap:18px;align-items:flex-start}
.engage .marque{
  flex:0 0 auto;width:44px;height:44px;background:var(--rouge);color:#fff;
  font-family:var(--disp);font-size:22px;display:flex;align-items:center;justify-content:center;
}
.engage p{margin:0;font-size:15.5px;color:#3C3C3C}

/* galerie */
.galerie{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.shot{margin:0;position:relative;background:var(--noir);overflow:hidden}
.shot::before{content:"";display:block;padding-top:74%}
.shot::after{
  content:"";position:absolute;top:0;right:0;bottom:0;left:0;z-index:1;
  background-image:repeating-linear-gradient(135deg,rgba(255,255,255,.05) 0 12px,transparent 12px 24px);
}
.shot img{position:absolute;top:0;right:0;bottom:0;left:0;width:100%;height:100%;object-fit:cover;z-index:2;filter:grayscale(1) contrast(1.05);transition:filter .35s,transform .6s}
.shot:hover img{filter:grayscale(0) contrast(1);transform:scale(1.04)}
.shot figcaption{
  position:absolute;left:0;right:0;bottom:0;z-index:3;padding:18px;
  background:linear-gradient(transparent,rgba(0,0,0,.92));color:#fff;
  font-family:var(--disp);font-size:20px;letter-spacing:.05em;text-transform:uppercase;
}
.shot figcaption span{display:block;font-family:var(--corps);font-size:13px;letter-spacing:0;text-transform:none;color:#C9C9C9;margin-top:2px}

/* études de cas */
.cas{display:grid;grid-template-columns:.9fr 1.1fr;gap:46px;align-items:center;margin-bottom:64px}
.cas:last-child{margin-bottom:0}
.cas:nth-child(even) .txt{order:-1}
.cas dl{margin:20px 0 0;border-top:1px solid var(--gris)}
.cas dl div{display:grid;grid-template-columns:150px 1fr;gap:14px;padding:13px 0;border-bottom:1px solid var(--gris)}
.cas dt{font-family:var(--disp);font-size:16px;letter-spacing:.07em;text-transform:uppercase;color:var(--rouge)}
.cas dd{margin:0;font-size:15.5px}

/* équipe */
.equipe{display:grid;grid-template-columns:repeat(4,1fr);gap:24px}
.membre figure{margin:0;background:var(--noir-3);aspect-ratio:1/1;overflow:hidden;position:relative}
.membre figure::before{content:"";display:block;padding-top:100%}
.membre img{position:absolute;top:0;right:0;bottom:0;left:0;width:100%;height:100%;object-fit:cover}
.membre h4{margin:16px 0 2px}
.membre span{display:block;font-size:14px;color:var(--texte-2)}
.sombre .membre span{color:#A8A8A8}

/* liste de villes */
.villes{display:flex;flex-wrap:wrap;gap:10px;padding:0;margin:0;list-style:none}
.villes li{border:1px solid var(--gris);padding:8px 15px;font-size:14.5px}
.sombre .villes li{border-color:#3A3A3A}

/* FAQ */
.faq{max-width:820px}
.faq details{border-bottom:1px solid var(--gris);padding:6px 0}
.faq summary{
  cursor:pointer;list-style:none;padding:17px 0;font-family:var(--disp);
  font-size:21px;letter-spacing:.03em;text-transform:uppercase;display:flex;gap:16px;align-items:center;
}
.faq summary::-webkit-details-marker{display:none}
.faq summary::before{content:"+";color:var(--rouge);font-size:26px;line-height:1}
.faq details[open] summary::before{content:"–"}
.faq p{margin:0 0 18px;padding-left:30px;font-size:16px;color:#3C3C3C}

/* chiffres */
.chiffres{display:grid;grid-template-columns:repeat(3,1fr);gap:40px;text-align:center}
.chiffres b{display:block;font-family:var(--disp);font-size:clamp(44px,6vw,72px);line-height:1;color:var(--rouge)}
.chiffres span{font-size:15px;color:#3C3C3C}
.sombre .chiffres span{color:#C9C9C9}

/* bande CTA */
.bande-cta{background:var(--rouge);color:#fff;padding:64px 0}
.bande-cta h2{margin-bottom:10px}
.bande-cta .wrap{display:flex;flex-wrap:wrap;gap:28px;align-items:center;justify-content:space-between}
.bande-cta p{margin:0;color:#FFE1E4;max-width:52ch}
.bande-cta .btn{background:#fff;color:var(--noir);border-color:#fff}
.bande-cta .btn:hover{background:var(--noir);color:#fff;border-color:var(--noir)}

/* formulaire */
.form-duo{display:grid;grid-template-columns:1.25fr .85fr;gap:56px;align-items:start}
form{display:grid;grid-template-columns:1fr 1fr;gap:18px}
.champ{display:flex;flex-direction:column;gap:7px}
.champ.large{grid-column:1 / -1}
label{font-size:13.5px;font-weight:600}
input,select,textarea{
  font-family:var(--corps);font-size:16px;padding:13px 14px;
  border:1px solid var(--gris);background:var(--pale);color:var(--noir);border-radius:0;
}
input:focus,select:focus,textarea:focus{outline:2px solid var(--rouge);outline-offset:-2px;background:#fff}
textarea{min-height:140px;resize:vertical}
.pot{position:absolute;left:-9999px;width:1px;height:1px;overflow:hidden}
button{
  grid-column:1 / -1;justify-self:start;cursor:pointer;border:0;background:var(--noir);color:#fff;
  font-size:20px;letter-spacing:.07em;padding:16px 34px;
}
button:hover{background:var(--rouge)}
.coord div{padding:18px 0;border-bottom:1px solid var(--gris)}
.coord div:first-child{padding-top:0}
.coord dt{font-size:13px;letter-spacing:.13em;text-transform:uppercase;color:var(--texte-2);margin-bottom:5px;font-family:var(--disp)}
.coord dd{margin:0;font-size:17px}
.coord a{text-decoration:none;border-bottom:2px solid var(--rouge)}
.avis{background:var(--pale);border-left:4px solid var(--noir);padding:14px 18px;font-size:15px;margin-bottom:26px}
.avis.err{background:#FBE3E6;border-color:var(--rouge)}

/* pied de page */
footer{background:var(--noir);color:#9C9C9C;padding:62px 0 34px;font-size:14.5px}
footer img{height:68px;margin-bottom:24px}
.pied{display:grid;grid-template-columns:1.3fr 1fr 1fr;gap:34px}
footer h4{color:#fff;font-size:16px;letter-spacing:.09em;margin-bottom:14px}
footer a{color:#C9C9C9;text-decoration:none}
footer a:hover{color:#fff}
footer ul{list-style:none;margin:0;padding:0}
footer li{margin-bottom:8px}
.legal{border-top:1px solid rgba(255,255,255,.12);margin-top:34px;padding-top:18px;font-size:13px;display:flex;flex-wrap:wrap;gap:16px;justify-content:space-between}

/* ---------------- responsive ---------------- */
@media (max-width:1000px){
  .grille,.galerie,.chiffres{grid-template-columns:repeat(2,1fr)}
  .etapes,.equipe{grid-template-columns:repeat(2,1fr)}
  .duo,.duo.large,.form-duo,.cas{grid-template-columns:1fr;gap:36px}
  .cas:nth-child(even) .txt{order:0}
  .confiance .wrap{grid-template-columns:repeat(2,1fr)}
  .confiance div:nth-child(3){border-left:0;padding-left:0}
  .pied{grid-template-columns:1fr 1fr}
}
@media (max-width:720px){
  body{font-size:16px}
  nav{
    display:none;position:absolute;top:82px;left:0;right:0;background:var(--noir);
    flex-direction:column;gap:0;padding:8px 24px 20px;border-top:1px solid rgba(255,255,255,.12);
  }
  nav.ouvert{display:flex}
  nav a{padding:14px 0;border-bottom:1px solid rgba(255,255,255,.08)}
  .burger{display:block}
  .bar .tel{display:none}
  .grille,.galerie,.chiffres,.engage,.equipe{grid-template-columns:1fr}
  .confiance .wrap{grid-template-columns:1fr}
  .confiance div{border-left:0;padding-left:0}
  form{grid-template-columns:1fr}
  section{padding:64px 0}
  .hero .wrap{padding:78px 24px 84px}
  .cas dl div{grid-template-columns:1fr;gap:2px}
  .pied{grid-template-columns:1fr}
}
@media (prefers-reduced-motion:no-preference){
  .reveal{opacity:0;transform:translateY(16px);transition:opacity .65s ease,transform .65s ease}
  .reveal.vu{opacity:1;transform:none}
}
@media (prefers-reduced-motion:reduce){
  .photo img,.shot img{transition:none}
}