:root{
  --ardoise:#0E2A47;        /* bleu marine profond (fond sombre) */
  --ardoise-2:#173A5E;      /* cartes sur fond sombre */
  --pierre:#F3F6FB;         /* fond clair bleuté */
  --blanc:#FFFFFF;
  --meleze:#1E6FD9;         /* bleu accent principal */
  --meleze-fonce:#155BB5;   /* bleu accent survol */
  --gris-texte:#54627A;
  --ligne:#DCE4EF;
  --radius:10px;
  --logo-fonce:#0F4854;     /* teinte foncée exacte du logo */
  --logo-clair:#3C747E;     /* teinte claire exacte du logo */
}
*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  font-family:'Figtree',system-ui,sans-serif;
  color:var(--ardoise);
  background:var(--pierre);
  line-height:1.6;
  font-size:16.5px;
}
h1,h2,h3{font-family:'Archivo',sans-serif;line-height:1.15}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
.wrap{max-width:1120px;margin:0 auto;padding:0 24px}

/* ---------- Eyebrow ---------- */
.eyebrow{
  display:inline-flex;align-items:center;gap:10px;
  font-family:'Archivo',sans-serif;font-size:.78rem;font-weight:700;
  letter-spacing:.14em;text-transform:uppercase;color:var(--meleze);
  margin-bottom:14px;
}
.eyebrow::before{content:"";width:26px;height:2px;background:var(--meleze)}

/* ---------- Header ---------- */
header{
  position:sticky;top:0;z-index:50;
  background:rgba(244,243,239,.92);backdrop-filter:blur(8px);
  border-bottom:1px solid var(--ligne);
}
.nav{display:flex;align-items:center;justify-content:space-between;height:72px}
.logo{display:flex;align-items:center;gap:11px;font-family:'Archivo',sans-serif;font-weight:800;font-size:1.12rem;letter-spacing:.01em}
.logo img{flex:none;height:38px;width:auto;border-radius:6px}
.logo span em{font-style:normal;color:var(--meleze)}
.nav-links{display:flex;gap:30px;align-items:center;font-weight:500;font-size:.95rem}
.nav-links a{position:relative;padding:4px 0;color:var(--ardoise)}
.nav-links a:not(.btn)::after{
  content:"";position:absolute;left:0;bottom:0;width:0;height:2px;background:var(--meleze);transition:width .25s;
}
.nav-links a:not(.btn):hover::after{width:100%}
.nav-links a.active:not(.btn)::after{width:100%}
.nav-links a.active:not(.btn){color:var(--meleze)}
.btn{
  display:inline-block;background:var(--meleze);color:#fff;font-weight:600;
  padding:11px 22px;border-radius:var(--radius);transition:background .2s, transform .15s;
  border:none;cursor:pointer;font-size:.95rem;font-family:'Figtree',sans-serif;
}
.btn:hover{background:var(--meleze-fonce);transform:translateY(-1px)}
.btn-ghost{
  background:transparent;border:1.5px solid rgba(255,255,255,.35);color:#fff;
}
.btn-ghost:hover{background:rgba(255,255,255,.08)}
.burger{display:none;background:none;border:none;cursor:pointer;padding:8px}
.burger span{display:block;width:24px;height:2.5px;background:var(--ardoise);margin:5px 0;border-radius:2px;transition:.25s}

/* ---------- Hero (accueil, photo pleine largeur) ---------- */
.hero{
  background:var(--ardoise);color:#fff;position:relative;overflow:hidden;
}
.hero-photo{
  position:absolute;inset:0;z-index:0;
  background-size:cover;background-position:center;
}
.hero-photo::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(100deg,rgba(14,42,71,.94) 0%,rgba(14,42,71,.86) 38%,rgba(14,42,71,.55) 68%,rgba(14,42,71,.32) 100%);
}
.hero-inner{padding:96px 0 170px;position:relative;z-index:2;max-width:720px}
.hero .eyebrow{color:#7FB2F0}
.hero .eyebrow::before{background:#7FB2F0}
.hero h1{font-size:clamp(2.2rem,5.2vw,3.6rem);font-weight:800;letter-spacing:-.015em;margin-bottom:22px}
.hero h1 strong{color:#5CA0F2;font-weight:800}
.hero p{font-size:1.13rem;color:#C4CBD3;max-width:560px;margin-bottom:34px}
.hero-cta{display:flex;gap:14px;flex-wrap:wrap}
/* ligne de crête — signature */
.ridge{position:absolute;left:0;right:0;bottom:-1px;width:100%;height:auto;z-index:1}
.hero-grid-bg{
  position:absolute;inset:0;z-index:0;opacity:.35;
  background-image:linear-gradient(rgba(255,255,255,.045) 1px,transparent 1px),
                   linear-gradient(90deg,rgba(255,255,255,.045) 1px,transparent 1px);
  background-size:46px 46px;
}

/* Badges de stats flottants dans le hero (accueil) */
.hero-badges{display:flex;gap:14px;flex-wrap:wrap;position:relative;z-index:2;margin-top:8px}
.hero-badge{
  background:rgba(23,58,94,.72);border:1px solid rgba(255,255,255,.14);backdrop-filter:blur(6px);
  border-radius:var(--radius);padding:16px 22px;min-width:150px;
}
.hero-badge .num{font-family:'Archivo',sans-serif;font-weight:800;font-size:1.6rem;color:#fff}
.hero-badge .lab{font-size:.82rem;color:#C4CBD3;margin-top:2px}

/* ---------- Page hero (pages intérieures) ---------- */
.page-hero{
  background:var(--ardoise);color:#fff;position:relative;overflow:hidden;padding:64px 0 92px;
}
.page-hero .wrap{position:relative;z-index:2}
.page-hero .eyebrow{color:#7FB2F0}
.page-hero .eyebrow::before{background:#7FB2F0}
.page-hero h1{font-size:clamp(1.9rem,4.2vw,2.7rem);font-weight:800;letter-spacing:-.01em;margin-bottom:12px}
.page-hero p{color:#C4CBD3;max-width:600px}

/* ---------- Bandeau points forts ---------- */
.points{padding:54px 0 8px}
.points-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
.point{display:flex;gap:14px;align-items:flex-start}
.point svg{flex:none;margin-top:3px}
.point h3{font-size:1.02rem;font-weight:700;margin-bottom:3px}
.point p{font-size:.93rem;color:var(--gris-texte)}

/* ---------- Sections ---------- */
section{padding:84px 0}
.section-head{max-width:640px;margin-bottom:48px}
.section-head h2{font-size:clamp(1.7rem,3.4vw,2.35rem);font-weight:800;letter-spacing:-.01em}
.section-head p{color:var(--gris-texte);margin-top:12px}
.section-head.center{max-width:640px;margin-left:auto;margin-right:auto;text-align:center}
.section-head.center .eyebrow{justify-content:center;width:100%}

/* ---------- Services ---------- */
.services-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
.card{
  background:var(--blanc);border:1px solid var(--ligne);border-radius:var(--radius);
  padding:30px 26px;transition:transform .2s, box-shadow .2s;
}
.card:hover{transform:translateY(-4px);box-shadow:0 12px 30px rgba(34,42,51,.08)}
.card .ico{
  width:46px;height:46px;border-radius:9px;background:rgba(30,111,217,.12);
  display:flex;align-items:center;justify-content:center;margin-bottom:18px;
}
.card h3{font-size:1.08rem;font-weight:700;margin-bottom:8px}
.card p{font-size:.94rem;color:var(--gris-texte)}
.services-more{text-align:center;margin-top:40px}

/* ---------- À propos ---------- */
.about{background:var(--blanc);border-top:1px solid var(--ligne);border-bottom:1px solid var(--ligne)}
.about-grid{display:grid;grid-template-columns:1.05fr .95fr;gap:64px;align-items:center}
.about-text p{color:var(--gris-texte);margin-bottom:16px}
.about-list{list-style:none;margin-top:22px}
.about-list li{
  display:flex;gap:12px;align-items:flex-start;margin-bottom:13px;font-weight:500;
}
.about-list svg{flex:none;margin-top:4px}
.stats{display:grid;grid-template-columns:1fr 1fr;gap:18px}
.stat{
  background:var(--ardoise);color:#fff;border-radius:var(--radius);
  padding:30px 24px;
}
.stat .num{font-family:'Archivo',sans-serif;font-size:2.1rem;font-weight:800;color:var(--meleze);line-height:1}
.stat .lab{font-size:.9rem;color:#C4CBD3;margin-top:8px}

/* ---------- Valeurs (page À propos) ---------- */
.values-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}

/* ---------- Process ---------- */
.steps{display:grid;grid-template-columns:repeat(4,1fr);gap:22px}
.step{position:relative;background:var(--blanc);border:1px solid var(--ligne);border-radius:var(--radius);padding:28px 24px}
.step .n{
  font-family:'Archivo',sans-serif;font-weight:800;font-size:.85rem;color:var(--meleze);
  letter-spacing:.1em;margin-bottom:12px;display:block;
}
.step h3{font-size:1.02rem;font-weight:700;margin-bottom:7px}
.step p{font-size:.92rem;color:var(--gris-texte)}

/* ---------- Zone d'intervention ---------- */
.zone{background:var(--ardoise);color:#fff;position:relative;overflow:hidden}
.zone .eyebrow{color:#7FB2F0}.zone .eyebrow::before{background:#7FB2F0}
.zone-grid{display:grid;grid-template-columns:1fr 1fr;gap:56px;align-items:center;position:relative;z-index:2}
.zone h2{font-size:clamp(1.6rem,3.2vw,2.2rem);font-weight:800;margin-bottom:14px}
.zone p{color:#C4CBD3}
.zone-tags{display:flex;flex-wrap:wrap;gap:10px;margin-top:24px}
.tag{
  background:var(--ardoise-2);border:1px solid rgba(255,255,255,.12);
  padding:8px 16px;border-radius:999px;font-size:.9rem;font-weight:500;
}
.zone-art{display:flex;justify-content:center}
.zone-art svg{width:100%;max-width:420px;height:auto}

/* ---------- Réalisations (galerie) ---------- */
.gallery-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:16px}
.gallery-item{
  position:relative;border-radius:var(--radius);overflow:hidden;cursor:pointer;
  aspect-ratio:4/3;background:var(--ardoise-2);
}
.gallery-item:nth-child(3n+1){grid-column:span 2;grid-row:span 2}
.gallery-item img{
  width:100%;height:100%;object-fit:cover;display:block;
  transition:transform .5s ease;
}
.gallery-item:hover img{transform:scale(1.06)}
.gallery-item .cap{
  position:absolute;left:0;right:0;bottom:0;padding:16px;
  background:linear-gradient(0deg,rgba(14,42,71,.85),transparent);
  color:#fff;font-size:.85rem;font-weight:600;
  opacity:0;transform:translateY(8px);transition:.25s;
}
.gallery-item:hover .cap{opacity:1;transform:none}

/* Bandeau réalisations sur l'accueil */
.work-strip{display:grid;grid-template-columns:repeat(4,1fr);gap:16px}
.work-strip .gallery-item{aspect-ratio:1/1}
.work-strip .gallery-item:nth-child(3n+1){grid-column:span 1;grid-row:span 1}

/* Lightbox */
.lightbox{
  position:fixed;inset:0;background:rgba(9,20,33,.92);z-index:200;
  display:none;align-items:center;justify-content:center;padding:40px;
}
.lightbox.open{display:flex}
.lightbox img{max-width:min(1100px,92vw);max-height:86vh;border-radius:8px;box-shadow:0 20px 60px rgba(0,0,0,.5)}
.lightbox-close{
  position:absolute;top:22px;right:26px;width:44px;height:44px;border-radius:50%;
  background:rgba(255,255,255,.1);border:1px solid rgba(255,255,255,.2);color:#fff;
  display:flex;align-items:center;justify-content:center;cursor:pointer;font-size:1.4rem;
}
.lightbox-close:hover{background:rgba(255,255,255,.18)}

/* ---------- Bandeau CTA ---------- */
.cta-banner{background:var(--meleze);color:#fff;padding:60px 0}
.cta-banner .wrap{display:flex;align-items:center;justify-content:space-between;gap:24px;flex-wrap:wrap}
.cta-banner h2{font-size:clamp(1.4rem,2.6vw,1.9rem);font-weight:800}
.cta-banner p{color:#DCEBFF;margin-top:6px}
.cta-banner .btn{background:#fff;color:var(--meleze)}
.cta-banner .btn:hover{background:#EAF2FF}

/* ---------- Contact ---------- */
.contact-grid{display:grid;grid-template-columns:.9fr 1.1fr;gap:56px}
.contact-info h2{font-size:clamp(1.6rem,3.2vw,2.2rem);font-weight:800;margin-bottom:14px}
.contact-info p{color:var(--gris-texte);margin-bottom:26px}
.coord{list-style:none}
.coord li{display:flex;align-items:center;gap:14px;margin-bottom:16px;font-weight:500}
.coord .ico-c{
  width:42px;height:42px;border-radius:9px;background:rgba(30,111,217,.12);
  display:flex;align-items:center;justify-content:center;flex:none;
}
form{
  background:var(--blanc);border:1px solid var(--ligne);border-radius:var(--radius);
  padding:34px;display:grid;gap:18px;
}
.form-row{display:grid;grid-template-columns:1fr 1fr;gap:18px}
label{font-size:.88rem;font-weight:600;display:block;margin-bottom:6px}
input,select,textarea{
  width:100%;padding:12px 14px;border:1.5px solid var(--ligne);border-radius:8px;
  font-family:'Figtree',sans-serif;font-size:.95rem;background:var(--pierre);
  transition:border-color .2s;color:var(--ardoise);
}
input:focus,select:focus,textarea:focus{outline:none;border-color:var(--meleze)}
textarea{resize:vertical;min-height:120px}
.form-note{font-size:.82rem;color:var(--gris-texte)}
.form-success{
  display:none;background:#EAF5EC;border:1px solid #BFE0C6;color:#22662F;
  padding:14px 16px;border-radius:8px;font-size:.93rem;font-weight:500;
}

/* ---------- Footer ---------- */
footer{background:var(--ardoise);color:#9AA4AF;padding:54px 0 30px;font-size:.92rem}
.foot-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr;gap:40px;margin-bottom:40px}
.foot-grid h4{font-family:'Archivo',sans-serif;color:#fff;font-size:.95rem;font-weight:700;margin-bottom:14px}
.foot-grid ul{list-style:none}
.foot-grid li{margin-bottom:9px}
.foot-grid a:hover{color:#fff}
.foot-logo{color:#fff;margin-bottom:12px}
.foot-bottom{border-top:1px solid rgba(255,255,255,.1);padding-top:22px;display:flex;justify-content:space-between;flex-wrap:wrap;gap:10px;font-size:.85rem}

/* ---------- Reveal on scroll ---------- */
.reveal{opacity:0;transform:translateY(18px);transition:opacity .6s ease, transform .6s ease}
.reveal.in{opacity:1;transform:none}
@media (prefers-reduced-motion: reduce){
  .reveal{opacity:1;transform:none;transition:none}
  html{scroll-behavior:auto}
}

/* ---------- Responsive ---------- */
@media (max-width: 900px){
  .points-grid,.services-grid,.values-grid{grid-template-columns:1fr 1fr}
  .steps{grid-template-columns:1fr 1fr}
  .about-grid,.zone-grid,.contact-grid{grid-template-columns:1fr;gap:44px}
  .foot-grid{grid-template-columns:1fr 1fr}
  .gallery-grid,.work-strip{grid-template-columns:repeat(2,1fr)}
  .gallery-item:nth-child(3n+1){grid-column:span 1;grid-row:span 1}
  .hero-badges{gap:10px}
}
@media (max-width: 640px){
  .nav-links{
    display:none;position:absolute;top:72px;left:0;right:0;background:var(--pierre);
    flex-direction:column;padding:22px 24px;gap:18px;border-bottom:1px solid var(--ligne);
    align-items:flex-start;
  }
  .nav-links.open{display:flex}
  .burger{display:block}
  .points-grid,.services-grid,.values-grid,.steps,.form-row,.foot-grid{grid-template-columns:1fr}
  .hero-inner{padding:72px 0 130px}
  section{padding:64px 0}
  .cta-banner .wrap{flex-direction:column;text-align:center}
  .gallery-grid,.work-strip{grid-template-columns:1fr 1fr}
}

/* ============ DYNAMISME ============ */
/* Barre de progression de lecture */
.progress{position:fixed;top:0;left:0;height:3px;width:0;background:var(--meleze);z-index:100;transition:width .1s linear}

/* Header : ombre + compression au scroll */
header{transition:box-shadow .3s, height .3s}
header.scrolled{box-shadow:0 4px 20px rgba(14,42,71,.08)}
header.scrolled .nav{height:62px}
.nav{transition:height .3s}

/* Entrée du hero (au chargement) */
@keyframes fadeUp{from{opacity:0;transform:translateY(24px)}to{opacity:1;transform:none}}
.hero-inner > *{opacity:0;animation:fadeUp .8s cubic-bezier(.2,.7,.2,1) forwards}
.hero-inner > *:nth-child(1){animation-delay:.05s}
.hero-inner > *:nth-child(2){animation-delay:.18s}
.hero-inner > *:nth-child(3){animation-delay:.31s}
.hero-inner > *:nth-child(4){animation-delay:.44s}
.page-hero .eyebrow,.page-hero h1,.page-hero p{opacity:0;animation:fadeUp .7s cubic-bezier(.2,.7,.2,1) forwards}
.page-hero h1{animation-delay:.1s}
.page-hero p{animation-delay:.2s}

/* CTA : effet de brillance qui passe */
.btn{position:relative;overflow:hidden}
.btn::after{
  content:"";position:absolute;top:0;left:-120%;width:60%;height:100%;
  background:linear-gradient(120deg,transparent,rgba(255,255,255,.35),transparent);
  transform:skewX(-20deg);transition:left .6s;
}
.btn:hover::after{left:140%}

/* Cartes services : barre d'accent qui se déploie */
.card{position:relative;overflow:hidden}
.card::before{
  content:"";position:absolute;top:0;left:0;height:3px;width:0;background:var(--meleze);
  transition:width .35s ease;
}
.card:hover::before{width:100%}
.card .ico{transition:transform .35s, background .35s}
.card:hover .ico{transform:rotate(-6deg) scale(1.08);background:rgba(30,111,217,.18)}

/* Étapes : le numéro se surligne */
.step{transition:transform .25s, box-shadow .25s}
.step:hover{transform:translateY(-4px);box-shadow:0 12px 30px rgba(14,42,71,.09)}

/* Reveal : décalage en cascade */
.reveal{transition:opacity .6s ease, transform .6s ease}
.reveal.d1{transition-delay:.08s}.reveal.d2{transition-delay:.16s}.reveal.d3{transition-delay:.24s}

/* Compteurs statistiques */
.stat .num,.hero-badge .num{font-variant-numeric:tabular-nums}

/* Bandeau défilant des départements */
.marquee{background:var(--ardoise);overflow:hidden;padding:16px 0;position:relative}
.marquee::before,.marquee::after{
  content:"";position:absolute;top:0;bottom:0;width:90px;z-index:2;
}
.marquee::before{left:0;background:linear-gradient(90deg,var(--ardoise),transparent)}
.marquee::after{right:0;background:linear-gradient(270deg,var(--ardoise),transparent)}
.marquee-track{display:flex;gap:44px;width:max-content;animation:scrollX 32s linear infinite}
.marquee:hover .marquee-track{animation-play-state:paused}
.marquee-track span{
  font-family:'Archivo',sans-serif;font-weight:700;font-size:.9rem;letter-spacing:.12em;
  text-transform:uppercase;color:#8FA6BE;display:inline-flex;align-items:center;gap:44px;white-space:nowrap;
}
.marquee-track span::after{content:"◆";color:var(--meleze);font-size:.7rem}
@keyframes scrollX{from{transform:translateX(0)}to{transform:translateX(-50%)}}

/* Pastille du logo footer */
.foot-logo-chip{
  display:inline-flex;align-items:center;justify-content:center;
  background:#fff;border-radius:8px;padding:6px;
}
.foot-logo-chip img{height:32px;width:auto;border-radius:4px}
.foot-logo{align-items:center}

/* Bouton retour en haut */
.to-top{
  position:fixed;right:22px;bottom:22px;width:48px;height:48px;border-radius:50%;
  background:var(--meleze);color:#fff;border:none;cursor:pointer;z-index:60;
  display:flex;align-items:center;justify-content:center;
  opacity:0;transform:translateY(14px);pointer-events:none;transition:.3s;
  box-shadow:0 6px 18px rgba(30,111,217,.35);
}
.to-top.show{opacity:1;transform:none;pointer-events:auto}
.to-top:hover{background:var(--meleze-fonce)}

@media (prefers-reduced-motion: reduce){
  .hero-inner > *,.page-hero .eyebrow,.page-hero h1,.page-hero p{opacity:1;animation:none}
  .marquee-track{animation:none}
  .btn::after{display:none}
}

/* ============ FORMULAIRE — états serveur ============ */
.form-success.is-visible{display:block}
.form-error{
  background:#FDECEC;border:1px solid #F2C2C2;color:#9B2C2C;
  padding:14px 16px;border-radius:8px;font-size:.93rem;font-weight:500;
}
.field-error{display:block;margin-top:6px;font-size:.82rem;color:#9B2C2C;font-weight:500}
input.err,textarea.err,select.err{border-color:#D96B6B;background:#FEF7F7}
.consent{display:flex;align-items:flex-start;gap:10px}
.consent input[type="checkbox"]{width:auto;margin-top:3px;flex:0 0 auto}
.consent label{font-weight:400;font-size:.88rem;line-height:1.5;margin-bottom:0;color:var(--gris-texte)}
.consent label a{color:var(--meleze);text-decoration:underline}
.hp-field{position:absolute;left:-9999px;width:1px;height:1px;overflow:hidden}
.contact-info .coord a{color:inherit;text-decoration:none}
.contact-info .coord a:hover{color:var(--meleze);text-decoration:underline}

/* ============ PAGES LÉGALES ============ */
.legal{max-width:820px}
.legal h2{
  font-family:'Archivo',sans-serif;font-size:1.15rem;font-weight:700;
  margin:38px 0 14px;color:var(--ardoise);
}
.legal h2:first-child{margin-top:0}
.legal p{margin-bottom:16px;line-height:1.75;color:var(--gris-texte)}
.legal a{color:var(--meleze)}
.legal strong{color:var(--ardoise)}
.legal .todo{background:#FFF6DA;border-bottom:1px dashed #C9A227;padding:0 4px;color:#7A5C00}
.legal-date{margin-top:40px;font-size:.85rem;font-style:italic}
.foot-bottom a{color:inherit}
.foot-bottom a:hover{color:#fff}

/* ============ PARTENAIRE MAÇON ============ */
.partner{
  display:flex;align-items:center;gap:16px;margin-top:22px;
  background:var(--blanc);border:1.5px solid var(--ligne);border-left:4px solid var(--meleze);
  border-radius:var(--radius);padding:16px 20px;
}
.partner-ico{
  flex:0 0 auto;width:42px;height:42px;border-radius:50%;background:#E8F1FD;
  display:flex;align-items:center;justify-content:center;
}
.partner-label{
  display:block;font-size:.74rem;font-weight:700;letter-spacing:1.1px;
  text-transform:uppercase;color:var(--gris-texte);margin-bottom:3px;
}
.partner-tel{
  display:inline-block;font-family:'Archivo',sans-serif;font-size:1.1rem;
  font-weight:700;color:var(--meleze);letter-spacing:.3px;
  border-bottom:1.5px solid transparent;transition:border-color .2s;
}
.partner-tel:hover{border-bottom-color:var(--meleze)}
.partner-inline{
  margin-top:10px;padding-top:10px;border-top:1px solid var(--ligne);
  font-size:.88rem;color:var(--gris-texte);
}
.partner-inline a{color:var(--meleze);font-weight:600}
@media(max-width:640px){
  .partner{flex-direction:column;align-items:flex-start;gap:10px}
  .partner-tel{display:block;margin-top:2px}
}