/* =====================================================================
   NEC — Entreprise Générale du Bâtiment
   Feuille de style commune (multi-pages)
   Inspiration : Bouygues Construction (grandes images, épuré, fluide)
   Marque : bleu #1902ab + rouge #e30e15 (extraits du logo)
   Type   : Archivo (titres) + Manrope (corps)
   ===================================================================== */
:root{
  --blue:#1902ab;
  --blue-deep:#12017d;
  --red:#e30e15;
  --red-deep:#bf1818;
  --ink:#14151b;
  --bg:#ffffff;
  --soft:#f4f6fa;
  --soft-2:#eef1f7;
  --muted:#5a6172;
  --line:#e4e7ee;
  --r:10px;
  --maxw:1240px;
  --shadow:0 24px 60px -30px rgba(20,21,27,.42);
}
*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth;scroll-padding-top:84px}
body{font-family:'Manrope',system-ui,sans-serif;color:var(--ink);background:var(--bg);line-height:1.72;letter-spacing:.005em;-webkit-font-smoothing:antialiased;overflow-x:hidden;-webkit-tap-highlight-color:transparent}
h1,h2,h3,h4{font-family:'Archivo',sans-serif;font-weight:800;letter-spacing:-.02em;line-height:1.1}
p{text-wrap:pretty}
img{display:block;max-width:100%}
a{color:inherit;text-decoration:none}
.container{max-width:var(--maxw);margin:0 auto;padding:0 2.2rem}

/* ---------- Boutons ---------- */
.btn{display:inline-flex;align-items:center;gap:.55rem;font-family:'Manrope';font-weight:700;font-size:1rem;letter-spacing:.01em;
  padding:1rem 1.9rem;border-radius:var(--r);cursor:pointer;border:2px solid transparent;
  transition:transform .15s,background .2s,border-color .2s,color .2s,box-shadow .2s;white-space:nowrap}
.btn-primary{background:var(--red);color:#fff}
.btn-primary:hover{background:var(--red-deep);transform:translateY(-2px);box-shadow:0 14px 30px -12px rgba(227,14,21,.5)}
.btn-blue{background:var(--blue);color:#fff}
.btn-blue:hover{background:var(--blue-deep);transform:translateY(-2px);box-shadow:0 14px 30px -12px rgba(25,2,171,.5)}
.btn-ghost{background:transparent;color:#fff;border-color:rgba(255,255,255,.55)}
.btn-ghost:hover{background:#fff;color:var(--ink);border-color:#fff}
.btn-outline{background:transparent;color:var(--ink);border-color:var(--line)}
.btn-outline:hover{border-color:var(--ink)}
.btn-lg{padding:1.15rem 2.3rem;font-size:1.05rem}

/* ---------- En-tête (logo très visible) ---------- */
.site-header{position:sticky;top:0;z-index:60;background:#fff;border-bottom:1px solid var(--line);transition:box-shadow .3s ease,background .3s ease}
.site-header.scrolled{box-shadow:0 10px 34px -20px rgba(20,21,27,.5)}
.nav{height:88px;display:flex;align-items:center;justify-content:space-between;gap:1.5rem}
.logo{height:60px;width:auto;display:block}
.nav-links{display:flex;align-items:center;gap:2.2rem;list-style:none}
.nav-links a{color:var(--ink);font-weight:600;font-size:1rem;position:relative;padding:.3rem 0;transition:color .2s}
.nav-links a::after{content:"";position:absolute;left:0;bottom:-4px;width:0;height:3px;background:var(--red);transition:width .25s;border-radius:2px}
.nav-links a:hover,.nav-links a.active{color:var(--blue)}
.nav-links a:hover::after,.nav-links a.active::after{width:100%}
.burger{display:none;place-items:center;background:#fff;border:1.5px solid var(--line);border-radius:11px;width:46px;height:46px;cursor:pointer;font-size:1.5rem;line-height:1;color:var(--ink);
  transition:background .25s,border-color .25s,color .25s,transform .12s}
.burger:active{transform:scale(.92)}
.burger.open{background:var(--blue);border-color:var(--blue);color:#fff}

/* ---------- Héros plein écran ---------- */
.hero{position:relative;min-height:82vh;display:flex;align-items:flex-end;color:#fff;overflow:hidden}
.hero--inner{min-height:56vh}
.hero-media{position:absolute;inset:0}
.hero-media img{width:100%;height:100%;object-fit:cover}
.hero-overlay{position:absolute;inset:0;background:
  linear-gradient(90deg,rgba(10,11,30,.82),rgba(10,11,30,.35) 60%,rgba(10,11,30,.15)),
  linear-gradient(0deg,rgba(10,11,30,.7),transparent 55%)}
.hero-content{position:relative;z-index:2;width:100%;padding:0 0 6rem}
.hero--inner .hero-content{padding:0 0 4.2rem}
.kicker{display:inline-flex;align-items:center;gap:.7rem;font-family:'Archivo';font-size:.82rem;font-weight:700;
  letter-spacing:.22em;text-transform:uppercase;color:#fff;margin-bottom:1.7rem}
.kicker::before{content:"";width:34px;height:3px;background:var(--red);border-radius:2px}
.hero h1{font-size:clamp(2.5rem,6vw,4.8rem);max-width:17ch;margin-bottom:1.5rem;line-height:1.07;text-shadow:0 2px 30px rgba(0,0,0,.25)}
.hero .lead{font-size:clamp(1.08rem,1.6vw,1.3rem);max-width:52ch;color:#eef0f7;margin-bottom:2.5rem;line-height:1.7}
.hero-actions{display:flex;gap:1rem;flex-wrap:wrap}
.scroll-cue{position:absolute;right:1.6rem;bottom:2rem;z-index:2;color:#fff;font-size:.72rem;letter-spacing:.2em;
  writing-mode:vertical-rl;opacity:.8;display:flex;align-items:center;gap:.8rem}
.scroll-cue::after{content:"";width:1px;height:46px;background:linear-gradient(#fff,transparent);animation:cue 1.8s infinite}
@keyframes cue{0%{opacity:0;transform:scaleY(.2);transform-origin:top}50%{opacity:1}100%{opacity:0;transform:scaleY(1);transform-origin:bottom}}

/* ---------- Sections ---------- */
.section{padding:7rem 0}
.section--soft{background:var(--soft)}
.section--ink{background:var(--ink);color:#fff}
.section-head{max-width:60ch;margin-bottom:4rem}
.section-head.center{margin-left:auto;margin-right:auto;text-align:center}
.eyebrow{font-family:'Archivo';color:var(--red);font-weight:700;font-size:.82rem;letter-spacing:.2em;text-transform:uppercase}
.section-title{font-size:clamp(2rem,4vw,3rem);margin:1rem 0 1.1rem;line-height:1.12}
.lead{color:var(--muted);font-size:1.14rem;line-height:1.75}
.section--ink .lead{color:#c5c9d6}

/* ---------- Chiffres clés ---------- */
.figures{background:linear-gradient(135deg,#2a18e0 0%,#1902ab 45%,#0a0b16 100%);color:#fff}
.figures-grid{display:grid;grid-template-columns:repeat(4,1fr)}
.figure{padding:2.8rem 1.5rem;text-align:center;border-left:1px solid rgba(255,255,255,.16)}
.figure:first-child{border-left:none}
.figure .t{font-family:'Archivo';font-weight:800;font-size:2rem;line-height:1.1}
.figure .d{opacity:.85;font-size:.95rem;margin-top:.4rem}

/* ---------- Split éditorial (image / texte) ---------- */
.split{display:grid;grid-template-columns:1fr 1fr;gap:4.2rem;align-items:center}
.split + .split{margin-top:5rem}
.split-media{border-radius:var(--r);overflow:hidden;box-shadow:var(--shadow);aspect-ratio:4/3}
.split-media img{width:100%;height:100%;object-fit:cover;transition:transform .6s}
.split-media:hover img{transform:scale(1.04)}
.split--reverse .split-text{order:2}
.split--reverse .split-media{order:1}
.split-text h3{font-size:clamp(1.6rem,3vw,2.2rem);margin-bottom:1.1rem;line-height:1.18}
.split-text p{color:var(--muted);font-size:1.06rem;line-height:1.72;margin-bottom:1.1rem}
.split-text .mark{width:48px;height:4px;background:var(--red);border-radius:2px;margin-bottom:1.5rem}

/* ---------- Cartes activités ---------- */
.cards{display:grid;grid-template-columns:repeat(3,1fr);gap:1.9rem}
.card{background:#fff;border:1px solid var(--line);border-radius:var(--r);overflow:hidden;transition:transform .25s,box-shadow .25s}
.card:hover{transform:translateY(-6px);box-shadow:var(--shadow)}
.card-media{aspect-ratio:16/11;overflow:hidden;position:relative}
.card-media img{width:100%;height:100%;object-fit:cover;transition:transform .5s}
.card:hover .card-media img{transform:scale(1.07)}
.card-media .tag{position:absolute;top:1rem;left:1rem;background:var(--blue);color:#fff;font-family:'Archivo';font-weight:700;
  font-size:.72rem;letter-spacing:.06em;padding:.35rem .7rem;border-radius:4px}
.card-body{padding:1.9rem 1.8rem 2.1rem}
.card-body h3{font-size:1.32rem;margin-bottom:.6rem}
.card-body p{color:var(--muted);font-size:.98rem;line-height:1.7}
.card-link{display:inline-block;margin-top:1.2rem;color:var(--red);font-family:'Archivo';font-weight:700;font-size:.9rem;letter-spacing:.02em}
.card:hover .card-link{text-decoration:underline}

/* Bloc projet (regroupe les photos d'un même chantier) */
.project{margin-bottom:4.75rem}
.project:last-of-type{margin-bottom:0}
.project-head{margin-bottom:1.9rem;padding-left:1.3rem;border-left:4px solid var(--red)}
.project-head .pj-loc{font-family:'Archivo';font-size:.78rem;letter-spacing:.16em;text-transform:uppercase;color:var(--blue);font-weight:700}
.project-head h3{font-family:'Archivo';font-weight:800;font-size:1.75rem;line-height:1.18;margin:.45rem 0 .65rem}
.project-head p{color:#4a4c57;max-width:66ch;margin:0;font-size:1.02rem;line-height:1.72}

/* ---------- Galerie réalisations ---------- */
.gallery{display:grid;grid-template-columns:repeat(12,1fr);grid-auto-rows:230px;gap:1.2rem}
.tile{position:relative;overflow:hidden;border-radius:var(--r);grid-column:span 4}
.tile.wide{grid-column:span 8}
.tile.tall{grid-row:span 2}
.tile img{width:100%;height:100%;object-fit:cover;transition:transform .6s}
.tile:hover img{transform:scale(1.07)}
.tile .meta{position:absolute;inset:auto 0 0 0;padding:3.4rem 1.7rem 1.6rem;color:#fff;
  background:linear-gradient(transparent 0%,rgba(8,9,18,.5) 30%,rgba(8,9,18,.92) 100%)}
.tile .meta .loc{font-family:'Archivo';font-size:.76rem;letter-spacing:.1em;opacity:.95;text-transform:uppercase;line-height:1.3;text-shadow:0 1px 4px rgba(0,0,0,.75)}
.tile .meta .ti{font-family:'Archivo';font-weight:700;font-size:1.08rem;margin-top:.2rem;line-height:1.3;text-shadow:0 1px 4px rgba(0,0,0,.8)}

/* Modificateurs de galerie — placés APRÈS .gallery/.tile pour gagner en priorité (même spécificité, ordre source) */
.gallery--uniform{grid-template-columns:repeat(3,1fr);grid-auto-rows:300px}
.gallery--uniform .tile{grid-column:auto;grid-row:auto}
.gallery--project{grid-template-columns:repeat(2,1fr);grid-auto-rows:560px;gap:1.4rem}
.gallery--project .tile{grid-column:auto;grid-row:auto}
.gallery--solo{grid-template-columns:1fr;grid-auto-rows:640px}
.gallery--solo .tile{grid-column:auto;grid-row:auto}

/* ---------- Bande CTA ---------- */
.cta-band{position:relative;color:#fff;overflow:hidden;border-radius:var(--r);
  background:linear-gradient(135deg,#2a18e0 0%,#1902ab 45%,#0a0b16 100%)}
.cta-band .cta-bg{display:none}
.cta-band .cta-ov{display:none}
.cta-inner{position:relative;z-index:2;padding:5.2rem 3.2rem;text-align:center}
.cta-inner h2{font-size:clamp(1.9rem,3.6vw,2.8rem);margin-bottom:1.1rem;line-height:1.14}
.cta-inner p{color:#dfe2ee;max-width:46ch;margin:0 auto 2.3rem;font-size:1.12rem;line-height:1.7}

/* ---------- Formulaire devis ---------- */
.devis-grid{display:grid;grid-template-columns:.95fr 1.05fr;gap:3.5rem;align-items:start}
.contact-line{display:flex;gap:1rem;align-items:flex-start;margin-bottom:1.5rem}
.contact-line .ic{width:50px;height:50px;flex-shrink:0;border-radius:var(--r);background:#eceefb;color:var(--blue);
  display:grid;place-items:center;font-family:'Archivo';font-weight:800;font-size:1.1rem}
.contact-line b{font-family:'Archivo';display:block;font-size:1rem;margin-bottom:.1rem}
.contact-line span,.contact-line a{color:var(--muted);font-size:.98rem}
.contact-line a:hover{color:var(--blue)}
.form-card{background:#fff;border:1px solid var(--line);border-radius:var(--r);padding:2.4rem;box-shadow:var(--shadow)}
.field{margin-bottom:1.3rem}
.field label{display:block;font-weight:700;font-size:.95rem;margin-bottom:.5rem}
.field input,.field select,.field textarea{width:100%;padding:.9rem 1.1rem;border:1.5px solid var(--line);border-radius:var(--r);
  font:inherit;font-size:1rem;background:#fbfcfe;transition:border .2s,box-shadow .2s}
.field input:focus,.field select:focus,.field textarea:focus{outline:none;border-color:var(--blue);box-shadow:0 0 0 3px rgba(25,2,171,.12)}
.field textarea{min-height:130px;resize:vertical}
.frow{display:grid;grid-template-columns:1fr 1fr;gap:1.3rem}
.form-alert{display:none;padding:1rem 1.2rem;border-radius:var(--r);margin-bottom:1.4rem;font-weight:600}
.form-alert.ok{display:block;background:#eafaf0;color:#0b6b35;border:1px solid #b7e8ca}
.form-alert.err{display:block;background:#fdecec;color:#a31616;border:1px solid #f5c2c2}
.form-note{font-size:.84rem;color:var(--muted);margin-top:1rem}

/* ---------- Pied de page ---------- */
.site-footer{background:var(--ink);color:#c2c7d4;padding:5.5rem 0 2.2rem}
.footer-grid{display:grid;grid-template-columns:1.7fr 1fr 1fr 1.2fr;gap:2.8rem;margin-bottom:3.4rem}
.footer-logo{background:#fff;padding:.7rem .9rem;border-radius:var(--r);display:inline-block;margin-bottom:1.2rem}
.footer-logo img{height:58px}
.site-footer p{max-width:34ch;font-size:.96rem}
.site-footer h5{color:#fff;font-family:'Archivo';font-weight:700;margin-bottom:1rem;font-size:1.05rem}
.site-footer ul{list-style:none}
.site-footer li{margin-bottom:.55rem}
.site-footer a{font-size:.96rem;transition:color .2s}
.site-footer a:hover{color:#fff}
.footer-bottom{border-top:1px solid rgba(255,255,255,.12);padding-top:1.6rem;font-size:.86rem;color:#878da0;
  display:flex;justify-content:space-between;flex-wrap:wrap;gap:.6rem}
.socials{display:flex;gap:.7rem;margin-top:1.3rem}
.socials a{width:42px;height:42px;border-radius:50%;display:grid;place-items:center;
  background:rgba(255,255,255,.08);color:#fff;transition:background .25s,transform .2s,color .25s}
.socials a:hover{background:var(--red);transform:translateY(-3px)}
.socials svg{width:19px;height:19px;fill:currentColor}

/* ---------- Visionneuse (lightbox) ---------- */
.tile{cursor:zoom-in}
.tile .zoom{position:absolute;top:.9rem;right:.9rem;z-index:3;width:38px;height:38px;border-radius:50%;
  background:rgba(255,255,255,.9);color:var(--blue);display:grid;place-items:center;font-size:1.1rem;font-weight:800;
  opacity:0;transform:scale(.8);transition:.25s}
.tile:hover .zoom{opacity:1;transform:scale(1)}
.lightbox{position:fixed;inset:0;z-index:200;background:rgba(8,9,18,.92);display:flex;align-items:center;justify-content:center;
  padding:2.5rem;opacity:0;visibility:hidden;transition:opacity .3s}
.lightbox.open{opacity:1;visibility:visible}
.lightbox figure{max-width:1100px;max-height:92vh;display:flex;flex-direction:column;align-items:center;gap:.9rem}
.lightbox img{max-width:100%;max-height:84vh;object-fit:contain;border-radius:var(--r);box-shadow:0 30px 80px rgba(0,0,0,.6)}
.lightbox figcaption{color:#fff;font-family:'Archivo';font-weight:700;font-size:1.05rem;text-align:center}
.lightbox figcaption small{display:block;font-family:'Manrope';font-weight:500;color:#aeb4c6;font-size:.85rem;margin-top:.15rem;letter-spacing:.08em;text-transform:uppercase}
.lightbox .lb-close{position:absolute;top:1.2rem;right:1.4rem;width:52px;height:52px;border-radius:50%;border:none;cursor:pointer;
  background:rgba(255,255,255,.12);color:#fff;font-size:1.6rem;line-height:1;transition:background .2s}
.lightbox .lb-close:hover{background:rgba(255,255,255,.25)}
.lightbox .lb-nav{position:absolute;top:50%;transform:translateY(-50%);width:54px;height:54px;border-radius:50%;border:none;cursor:pointer;
  background:rgba(255,255,255,.12);color:#fff;font-size:1.6rem;transition:background .2s}
.lightbox .lb-nav:hover{background:rgba(255,255,255,.28)}
.lightbox .lb-prev{left:1.4rem}
.lightbox .lb-next{right:1.4rem}
@media (max-width:620px){.lightbox{padding:1rem}.lightbox .lb-nav{width:44px;height:44px}}

/* ---------- Animations ---------- */
.reveal{opacity:0;transform:translateY(28px);transition:opacity .8s ease,transform .8s cubic-bezier(.16,1,.3,1)}
.reveal.in{opacity:1;transform:none}
@media (prefers-reduced-motion:reduce){.reveal{opacity:1;transform:none;transition:none}}

/* ---------- Responsive ---------- */
@media (max-width:1024px){
  .figures-grid{grid-template-columns:repeat(2,1fr)}
  .figure:nth-child(3){border-left:none}
  .cards{grid-template-columns:repeat(2,1fr)}
  .footer-grid{grid-template-columns:1fr 1fr;gap:2rem}
}
@media (max-width:860px){
  .split{grid-template-columns:1fr;gap:2rem}
  .split--reverse .split-text,.split--reverse .split-media{order:initial}
  .devis-grid{grid-template-columns:1fr;gap:2.2rem}
  .gallery{grid-template-columns:repeat(2,1fr);grid-auto-rows:220px}
  .tile,.tile.wide{grid-column:span 1}
  .tile.tall{grid-row:span 1}
  .gallery--project{grid-auto-rows:380px}
  .gallery--solo{grid-auto-rows:460px}
}

/* ----- Mobile : menu burger + mise en page une colonne ----- */
@media (max-width:768px){
  .nav{height:70px}
  .logo{height:44px}
  .burger{display:grid}

  /* Menu plein écran (overlay) */
  .nav-links{position:fixed;inset:0;z-index:55;flex-direction:column;align-items:stretch;justify-content:center;gap:0;
    background:rgba(255,255,255,.98);backdrop-filter:blur(10px);-webkit-backdrop-filter:blur(10px);
    padding:6rem 1.6rem 2.2rem;overflow:auto;
    opacity:0;visibility:hidden;transform:translateY(-16px);
    transition:opacity .4s ease,transform .5s cubic-bezier(.16,1,.3,1),visibility .4s ease}
  .nav-links.open{opacity:1;visibility:visible;transform:none}
  .nav-links li{border-bottom:1px solid var(--line);opacity:0;transform:translateY(18px);
    transition:opacity .45s ease,transform .55s cubic-bezier(.16,1,.3,1)}
  .nav-links.open li{opacity:1;transform:none}
  .nav-links.open li:nth-child(1){transition-delay:.10s}
  .nav-links.open li:nth-child(2){transition-delay:.16s}
  .nav-links.open li:nth-child(3){transition-delay:.22s}
  .nav-links.open li:nth-child(4){transition-delay:.28s}
  .nav-links li:last-child{border-bottom:none;margin-top:1.3rem}
  .nav-links a{display:block;padding:1.15rem .3rem;font-family:'Archivo';font-weight:800;font-size:1.55rem;letter-spacing:-.01em}
  .nav-links a::after{display:none}
  .nav-links a:active{color:var(--blue)}
  .nav-links .btn-primary{justify-content:center;font-size:1.1rem;padding:1.15rem}

  .section{padding:4.5rem 0}
  .section-head{margin-bottom:2.8rem}
  .container{padding:0 1.5rem}

  html{scroll-padding-top:70px}
  .hero{min-height:84vh}
  .hero--inner{min-height:50vh}
  .hero-overlay{background:linear-gradient(0deg,rgba(10,11,30,.85),rgba(10,11,30,.28) 55%,rgba(10,11,30,.45))}
  .hero-content{padding:0 0 3.2rem}
  .hero--inner .hero-content{padding:0 0 2.6rem}
  .hero h1{margin-bottom:1rem}
  .hero .lead{margin-bottom:1.8rem}
  .hero-actions{gap:.8rem}
  .hero-actions .btn{flex:1 1 100%;justify-content:center}
  .scroll-cue{display:none}

  .cards,.frow,.gallery,.gallery--project,.gallery--solo{grid-template-columns:1fr}
  .gallery{grid-auto-rows:280px}
  .gallery--project{grid-auto-rows:300px}
  .gallery--solo{grid-auto-rows:320px}
  .project{margin-bottom:3rem}
  .project-head h3{font-size:1.45rem}

  .figures-grid{grid-template-columns:1fr 1fr}
  .figure{border-left:none;border-top:1px solid rgba(255,255,255,.16);padding:2rem .8rem;min-width:0}
  .figure:first-child,.figure:nth-child(2){border-top:none}
  .figure .t{font-size:1.55rem;overflow-wrap:anywhere}

  .footer-grid{grid-template-columns:1fr 1fr;gap:2rem}
  .footer-bottom{flex-direction:column;gap:.5rem;text-align:left}
  .cta-inner{padding:3rem 1.4rem}
  .form-card{padding:1.6rem}
}

/* ----- Petits téléphones ----- */
@media (max-width:430px){
  .container{padding:0 1.4rem}
  .section{padding:3.8rem 0}
  .hero h1{font-size:2.15rem;line-height:1.12}
  .hero .lead{font-size:1.04rem}
  .cta-inner{padding:3.4rem 1.5rem}
  .project-head h3{font-size:1.45rem}
  .footer-grid{grid-template-columns:1fr;gap:1.8rem}
  .gallery,.gallery--project{grid-auto-rows:248px}
  .gallery--solo{grid-auto-rows:280px}
  .btn,.btn-lg{padding:.95rem 1.4rem;font-size:1rem}
}

/* ---------- Finitions tactiles & confort mobile ---------- */
@supports (height:100svh){
  @media (max-width:768px){
    .hero{min-height:84svh}
    .hero--inner{min-height:50svh}
  }
}
/* Retour tactile au toucher */
.btn:active{transform:scale(.97)}
.card:active{transform:scale(.99)}
.socials a:active{transform:scale(.92)}
/* Appareils tactiles : pas de survol « collant », indice de zoom visible */
@media (hover:none){
  .tile .zoom{opacity:1;transform:none;background:rgba(255,255,255,.92)}
  .card:hover{transform:none;box-shadow:none}
  .card:hover .card-media img,.tile:hover img,.split-media:hover img{transform:none}
}