:root{
  --charbon:#17323C;
  --ardoise:#0C6D8B;
  --ardoise-dark:#0A5670;
  --mousse:#3E7E3C;
  --mousse-dark:#2C5F2A;
  --pierre:#F1F2EE;
  --pierre-mid:#DEDBCE;
  --ocre:#FFAE0E;
  --rouge:#EB4349;
  --blanc:#FFFFFF;
  --font-display:'Barlow Condensed', sans-serif;
  --font-body:'Inter', sans-serif;
}
*{margin:0;padding:0;box-sizing:border-box;}
html{scroll-behavior:smooth;}
body{
  font-family:var(--font-body);
  color:var(--charbon);
  background:var(--pierre);
  line-height:1.6;
}
img{max-width:100%;display:block;}
a{color:inherit;}
.container{max-width:1140px;margin:0 auto;padding:0 24px;}
h1,h2,h3,h4{font-family:var(--font-display);font-weight:800;letter-spacing:0.01em;line-height:1.05;text-transform:uppercase;color:var(--charbon);}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-family:var(--font-display);font-weight:700;font-size:0.9rem;
  letter-spacing:0.14em;text-transform:uppercase;color:var(--ocre);
  margin-bottom:12px;
}
.eyebrow::before{content:"";width:22px;height:2px;background:var(--ocre);display:inline-block;}

/* Header */
header{
  background:var(--charbon);color:var(--pierre);
  position:sticky;top:0;z-index:50;
  border-bottom:3px solid var(--ocre);
}
.nav-wrap{display:flex;align-items:center;justify-content:space-between;padding:16px 24px;max-width:1140px;margin:0 auto;flex-wrap:wrap;gap:12px;}
.logo{display:flex;align-items:center;gap:10px;}
.logo img{height:64px;width:auto;display:block;filter:drop-shadow(0 2px 6px rgba(0,0,0,0.35));}
.footer-logo{display:flex;align-items:center;gap:16px;}
.footer-logo img{height:56px;width:auto;}
nav ul{list-style:none;display:flex;gap:26px;flex-wrap:wrap;}
nav a{text-decoration:none;font-weight:600;font-size:0.95rem;color:var(--pierre);opacity:0.85;}
nav a:hover,nav a.active{opacity:1;color:var(--ocre);}
.call-btn{
  background:var(--ocre);color:var(--charbon);font-weight:700;
  padding:10px 18px;border-radius:2px;text-decoration:none;
  font-family:var(--font-display);font-size:1.05rem;letter-spacing:0.03em;
  white-space:nowrap;
}
.call-btn:hover{background:#DDA047;}

/* Photos réelles */
.photo-frame{position:relative;aspect-ratio:4/3;border-radius:4px;overflow:hidden;}
.photo-frame img{width:100%;height:100%;object-fit:cover;display:block;}
.photo-frame .frame-caption{
  position:absolute;bottom:0;left:0;right:0;
  background:linear-gradient(0deg, rgba(31,37,35,0.75), transparent);
  color:#fff;font-family:var(--font-display);font-size:0.85rem;letter-spacing:0.06em;
  text-transform:uppercase;padding:22px 12px 10px;
}

/* Slider avant/après */
.compare-real{
  position:relative;width:100%;aspect-ratio:4/3;border-radius:4px;overflow:hidden;
  border:1px solid #37403C;
}
.compare-real img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;display:block;}
.compare-before-wrap{position:absolute;inset:0;overflow:hidden;clip-path:inset(0 50% 0 0);}
.compare-handle-real{
  position:absolute;top:0;bottom:0;left:50%;width:3px;background:var(--ocre);
  transform:translateX(-50%);pointer-events:none;
}
.compare-handle-real::after{
  content:"⇔";position:absolute;top:50%;left:50%;transform:translate(-50%,-50%);
  background:var(--ocre);color:var(--charbon);width:36px;height:36px;border-radius:50%;
  display:flex;align-items:center;justify-content:center;font-size:1rem;font-weight:700;
}
.compare-real input[type=range]{
  position:absolute;inset:0;width:100%;height:100%;margin:0;
  opacity:0;cursor:ew-resize;appearance:none;
}
.compare-tag{
  position:absolute;bottom:12px;font-family:var(--font-display);font-size:0.85rem;
  letter-spacing:0.08em;text-transform:uppercase;background:rgba(31,37,35,0.75);
  color:#fff;padding:5px 10px;border-radius:2px;z-index:2;
}
.tag-before{left:12px;}
.tag-after{right:12px;}

/* Emplacements photo (à venir) */
.photo-slot{
  position:relative;aspect-ratio:4/3;border-radius:4px;overflow:hidden;
  border:2px dashed var(--pierre-mid);background:repeating-linear-gradient(45deg, #F7F7F3 0 12px, #EEEDE5 12px 24px);
  display:flex;align-items:center;justify-content:center;text-align:center;
}
.photo-slot .slot-inner{padding:16px;}
.photo-slot .slot-icon{font-size:1.8rem;display:block;margin-bottom:8px;opacity:0.55;}
.photo-slot .slot-label{font-family:var(--font-display);font-size:0.95rem;letter-spacing:0.04em;text-transform:uppercase;color:#7C837C;}
.photo-slot .slot-hint{font-size:0.78rem;color:#9AA097;margin-top:4px;}
.gallery-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px;}
.gallery-grid.two{grid-template-columns:repeat(2,1fr);}
@media (max-width:820px){
  .gallery-grid{grid-template-columns:repeat(2,1fr);}
}
@media (max-width:560px){
  .gallery-grid, .gallery-grid.two{grid-template-columns:1fr;}
}

/* Hero */
.hero{background:var(--charbon);color:var(--pierre);padding:72px 0 0 0;overflow:hidden;}
.hero-inner{
  display:grid;grid-template-columns:1.1fr 1fr;gap:48px;align-items:center;
  max-width:1140px;margin:0 auto;padding:0 24px 56px;
}
.hero h1{color:var(--blanc);font-size:clamp(2.1rem,4.2vw,3.4rem);margin-bottom:20px;}
.hero h1 em{font-style:normal;color:var(--ocre);}
.hero p.lead{font-size:1.1rem;color:#D5D9D2;max-width:46ch;margin-bottom:28px;}
.hero-ctas{display:flex;gap:14px;flex-wrap:wrap;}
.btn-primary{
  background:var(--ocre);color:var(--charbon);font-weight:700;
  padding:14px 26px;text-decoration:none;border-radius:2px;
  font-family:var(--font-display);font-size:1.15rem;letter-spacing:0.03em;
  display:inline-block;border:none;cursor:pointer;
}
.btn-secondary{
  border:2px solid #4B5A55;color:var(--pierre);font-weight:600;
  padding:12px 24px;text-decoration:none;border-radius:2px;font-size:0.95rem;
  display:inline-block;
}
.btn-secondary:hover{border-color:var(--ocre);color:var(--ocre);}

/* Page intro (pages internes, sans le gros hero) */
.page-intro{background:var(--charbon);color:var(--pierre);padding:56px 0;}
.page-intro .eyebrow{color:var(--ocre);}
.page-intro h1{color:var(--blanc);font-size:clamp(1.9rem,3.6vw,2.8rem);margin-bottom:14px;}
.page-intro p{color:#D5D9D2;font-size:1.05rem;max-width:60ch;}

/* Sections */
section{padding:72px 0;}
.section-head{max-width:60ch;margin-bottom:44px;}
.section-head h2{font-size:clamp(1.8rem,3vw,2.4rem);}
.section-head p{color:#4A524C;margin-top:14px;font-size:1.05rem;}

.service-block{
  display:grid;grid-template-columns:280px 1fr;gap:36px;
  padding:36px 0;border-top:1px solid var(--pierre-mid);
}
.service-block:last-child{border-bottom:1px solid var(--pierre-mid);}
.service-block h3{font-size:1.5rem;display:flex;align-items:center;gap:10px;}
.service-block .sub{font-family:var(--font-body);text-transform:none;font-weight:500;color:#5A625C;font-size:0.95rem;margin-top:8px;letter-spacing:0;}
.chips{display:flex;flex-wrap:wrap;gap:10px;}
.chip{
  background:var(--blanc);border:1px solid var(--pierre-mid);
  padding:9px 15px;border-radius:2px;font-size:0.92rem;font-weight:500;
}
.toiture-block h3{color:var(--ardoise-dark);}
.toiture-block .chip{border-left:3px solid var(--rouge);}
.facade-block h3{color:var(--ardoise-dark);}
.facade-block .chip{border-left:3px solid var(--ocre);}
.vert-block h3{color:var(--mousse-dark);}
.vert-block .chip{border-left:3px solid var(--mousse);}

/* Aperçu service (page d'accueil) */
.service-preview{
  display:grid;grid-template-columns:1fr 1fr;gap:40px;align-items:center;
  padding:40px 0;border-top:1px solid var(--pierre-mid);
}
.service-preview:last-child{border-bottom:1px solid var(--pierre-mid);}
.service-preview h3{font-size:1.7rem;margin-bottom:10px;}
.service-preview p{color:#4A524C;margin-bottom:16px;}
.service-preview .chips{margin-bottom:20px;}
.service-preview.reverse{direction:rtl;}
.service-preview.reverse > *{direction:ltr;}
.link-arrow{
  font-family:var(--font-display);font-weight:700;letter-spacing:0.03em;
  text-decoration:none;font-size:1.05rem;display:inline-flex;align-items:center;gap:6px;
}
.link-arrow.rouge{color:var(--rouge);}
.link-arrow.ocre-link{color:#B36A00;}
.link-arrow.mousse{color:var(--mousse-dark);}
@media (max-width:820px){
  .service-preview,.service-preview.reverse{grid-template-columns:1fr;direction:ltr;}
}

.band{background:var(--ardoise);color:var(--blanc);}
.band .section-head p{color:#DCE3E0;}
.band .eyebrow{color:var(--ocre);}
.zone-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(180px,1fr));gap:14px;margin-top:8px;}
.zone-item{
  background:rgba(255,255,255,0.08);border:1px solid rgba(255,255,255,0.18);
  padding:14px 16px;border-radius:2px;font-weight:600;
}
.zone-item.main{background:var(--ocre);color:var(--charbon);border-color:var(--ocre);}

.why-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(220px,1fr));gap:28px;}
.why-card h4{font-family:var(--font-body);text-transform:none;font-weight:700;font-size:1.1rem;letter-spacing:0;margin-bottom:8px;color:var(--charbon);}
.why-card p{color:#4A524C;font-size:0.97rem;}
.why-card .num{font-family:var(--font-display);font-size:2.4rem;color:var(--ocre);line-height:1;margin-bottom:6px;}

.cta-final{background:var(--charbon);color:var(--blanc);text-align:center;padding:64px 24px;}
.cta-final h2{color:var(--blanc);font-size:clamp(1.7rem,3vw,2.3rem);margin-bottom:16px;}
.cta-final p{color:#C9CFC9;margin-bottom:28px;font-size:1.05rem;}
.phone-big{
  font-family:var(--font-display);font-size:clamp(2rem,4vw,2.8rem);color:var(--ocre);
  text-decoration:none;letter-spacing:0.02em;
}

/* Formulaire de contact */
.contact-form{max-width:640px;}
.form-row{display:grid;grid-template-columns:1fr 1fr;gap:20px;}
.form-group{margin-bottom:20px;}
.form-group label{display:block;font-weight:600;font-size:0.9rem;margin-bottom:6px;color:var(--charbon);}
.form-group input,.form-group textarea{
  width:100%;padding:12px 14px;border:1px solid var(--pierre-mid);border-radius:2px;
  font-family:var(--font-body);font-size:0.98rem;background:var(--blanc);color:var(--charbon);
}
.form-group input:focus,.form-group textarea:focus{outline:none;border-color:var(--ardoise);}
.form-group textarea{resize:vertical;}
.hp-field{position:absolute;left:-9999px;opacity:0;height:0;width:0;}
.form-notice{
  max-width:640px;padding:14px 18px;border-radius:2px;margin-bottom:24px;font-weight:600;
}
.form-notice.error{background:#FBE3E4;color:#8A2A2E;border:1px solid #EFC0C2;}
@media (max-width:600px){.form-row{grid-template-columns:1fr;}}

footer{background:#161A18;color:#8B958E;padding:48px 0 24px;font-size:0.92rem;}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr;gap:36px;margin-bottom:32px;}
.footer-grid h5{font-family:var(--font-display);text-transform:uppercase;letter-spacing:0.05em;font-size:1rem;color:#D5D9D2;margin-bottom:14px;}
.footer-grid p,.footer-grid li{color:#8B958E;line-height:1.7;}
.footer-grid a{color:#8B958E;text-decoration:none;}
.footer-grid a:hover{color:var(--ocre);}
.footer-grid ul{list-style:none;}
.footer-social{display:flex;gap:12px;margin-top:16px;}
.footer-social a{
  width:38px;height:38px;border-radius:50%;background:rgba(255,255,255,0.08);
  display:flex;align-items:center;justify-content:center;transition:background 0.25s ease;
}
.footer-social a:hover{background:var(--ocre);}
.footer-social svg{width:18px;height:18px;fill:#D5D9D2;}
.footer-social a:hover svg{fill:var(--charbon);}
.footer-bottom{
  border-top:1px solid #2A2F2C;padding-top:20px;
  display:flex;justify-content:space-between;flex-wrap:wrap;gap:10px;font-size:0.85rem;
}
.footer-inner{display:flex;justify-content:space-between;flex-wrap:wrap;gap:12px;}
.footer-inner strong{color:#D5D9D2;}
@media (max-width:760px){
  .footer-grid{grid-template-columns:1fr;}
}

@media (max-width:820px){
  .hero-inner{grid-template-columns:1fr;}
  .service-block{grid-template-columns:1fr;gap:16px;}
  nav ul{display:none;}
}

/* Menu mobile (hamburger) */
.menu-toggle{
  display:none;background:none;border:none;color:var(--pierre);font-size:1.7rem;
  cursor:pointer;padding:2px 6px;line-height:1;
}
@media (max-width:820px){
  header{position:sticky;}
  .nav-actions{display:flex;align-items:center;gap:14px;}
  .menu-toggle{display:inline-flex;}
  nav ul{
    display:none;flex-direction:column;gap:0;
    background:var(--charbon);position:absolute;top:100%;left:0;right:0;
    padding:6px 24px 16px;border-bottom:3px solid var(--ocre);
  }
  nav ul.open{display:flex;}
  nav ul li{border-top:1px solid rgba(255,255,255,0.1);}
  nav ul li:first-child{border-top:none;}
  nav ul a{display:block;padding:14px 0;}
}

/* Barre d'appel fixe (mobile) */
.mobile-cta-bar{display:none;}
@media (max-width:820px){
  body{padding-bottom:60px;}
  .mobile-cta-bar{
    display:flex;position:fixed;bottom:0;left:0;right:0;z-index:60;
    box-shadow:0 -4px 14px rgba(0,0,0,0.25);
  }
  .mobile-cta-btn{
    flex:1;text-align:center;padding:15px 8px;font-family:var(--font-display);
    font-weight:700;font-size:1rem;text-decoration:none;letter-spacing:0.02em;text-transform:uppercase;
  }
  .mobile-cta-btn.call{background:var(--charbon);color:#fff;}
  .mobile-cta-btn.devis{background:var(--ocre);color:var(--charbon);}
}

/* Étapes "Comment ça se passe" */
.steps-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:28px;counter-reset:step;}
.step-card{text-align:center;position:relative;}
.step-card .step-num{
  width:52px;height:52px;border-radius:50%;background:var(--ocre);color:var(--charbon);
  display:flex;align-items:center;justify-content:center;margin:0 auto 16px;
  font-family:var(--font-display);font-weight:800;font-size:1.3rem;
}
.step-card h4{font-family:var(--font-body);text-transform:none;font-weight:700;font-size:1.05rem;margin-bottom:6px;color:var(--charbon);}
.step-card p{color:#4A524C;font-size:0.93rem;}
.step-arrow{display:none;}
@media (min-width:821px){
  .step-card:not(:last-child)::after{
    content:"→";position:absolute;top:14px;right:-24px;color:var(--pierre-mid);font-size:1.4rem;
  }
}
@media (max-width:820px){
  .steps-grid{grid-template-columns:1fr;gap:32px;}
}

/* Carte Google Maps */
.map-frame{width:100%;border-radius:4px;overflow:hidden;border:1px solid var(--pierre-mid);}
.map-frame iframe{width:100%;height:340px;border:0;display:block;}
@media (prefers-reduced-motion: reduce){
  html{scroll-behavior:auto;}
}

/* Effets dynamiques */
header{transition:box-shadow 0.3s ease, background 0.3s ease;}
header.scrolled{box-shadow:0 6px 18px rgba(0,0,0,0.25);}

.reveal{opacity:0;transform:translateY(28px);transition:opacity 0.7s ease, transform 0.7s ease;}
.reveal.in-view{opacity:1;transform:translateY(0);}
.gallery-grid .reveal:nth-child(2){transition-delay:0.08s;}
.gallery-grid .reveal:nth-child(3){transition-delay:0.16s;}
.gallery-grid .reveal:nth-child(4){transition-delay:0.24s;}
.gallery-grid .reveal:nth-child(5){transition-delay:0.32s;}
.gallery-grid .reveal:nth-child(6){transition-delay:0.4s;}
.why-grid .reveal:nth-child(2){transition-delay:0.1s;}
.why-grid .reveal:nth-child(3){transition-delay:0.2s;}

.photo-frame{transition:box-shadow 0.35s ease;}
.photo-frame img{transition:transform 0.6s ease;}
.photo-frame:hover img{transform:scale(1.06);}
.photo-frame:hover{box-shadow:0 12px 28px rgba(0,0,0,0.22);}

.chip{transition:transform 0.25s ease, box-shadow 0.25s ease, border-color 0.25s ease;}
.chip:hover{transform:translateY(-3px);box-shadow:0 6px 14px rgba(0,0,0,0.1);}

.zone-item{transition:transform 0.25s ease, background 0.25s ease;}
.zone-item:hover{transform:translateY(-3px);background:rgba(255,255,255,0.16);}
.zone-item.main:hover{background:#DDA047;}

.why-card{transition:transform 0.3s ease;}
.why-card:hover{transform:translateY(-6px);}

.btn-primary,.btn-secondary,.call-btn{transition:transform 0.2s ease, background 0.2s ease, box-shadow 0.2s ease;}
.btn-primary:hover{transform:translateY(-2px);box-shadow:0 8px 18px rgba(255,174,14,0.35);background:#FFC248;}
.btn-secondary:hover{transform:translateY(-2px);}
.call-btn:hover{transform:translateY(-2px);}

.link-arrow{transition:gap 0.25s ease, opacity 0.25s ease;}
.link-arrow:hover{gap:12px;opacity:0.8;}

.compare-handle-real{transition:left 0.05s linear;}
.compare-handle-real::after{transition:transform 0.2s ease;}
.compare-real:hover .compare-handle-real::after{transform:translate(-50%,-50%) scale(1.08);}

@media (prefers-reduced-motion: reduce){
  .reveal{opacity:1;transform:none;transition:none;}
  .photo-frame img,.chip,.zone-item,.why-card,.btn-primary,.btn-secondary,.call-btn,.link-arrow{transition:none;}
}