/* ============================================================
   Les Toits de Boulogne — D.A.3 « Direct & Net » (moderne, efficace)
   Feuille de style partagée du site vitrine premium (5 pages).
   Standard photo : héros photo plein écran (Ken Burns + overlay),
   galerie « Aperçu de nos biens » + lightbox.
   Palette : bleu marine #14213D · orange #FCA311 · blanc.
   Fonts : Sora (titres) + Inter (texte).
   Maquette d'étude — ASALIS Consulting Group.
   ============================================================ */
:root{
  --marine:#14213D; --orange:#FCA311; --blanc:#FFFFFF;
  --marine-2:#1D2E4F; --marine-clair:#26395E; --orange-clair:#FFC15A;
  --fond:#F4F6FB; --fond-2:#EAEEF6; --encre:#1B2436; --gris:#5B6478;
  --trait:rgba(20,33,61,.12); --trait-clair:rgba(255,255,255,.16);
  --s2:16px; --s3:28px; --s4:56px; --s5:132px;
}
*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth}
/* Transitions inter-pages (progressive enhancement — Chrome/Edge récents) */
@view-transition{navigation:auto}
@media (prefers-reduced-motion:no-preference){
  ::view-transition-old(root){animation:vt-out .32s ease both}
  ::view-transition-new(root){animation:vt-in .42s ease both}
}
@keyframes vt-out{to{opacity:0}}
@keyframes vt-in{from{opacity:0}}
body{font-family:'Inter',sans-serif;font-size:16.5px;line-height:1.68;color:var(--encre);background:var(--blanc);-webkit-font-smoothing:antialiased}
h1,h2,h3,.display{font-family:'Sora',sans-serif;font-weight:700}
h1,h2,h3{line-height:1.05;letter-spacing:-.02em;color:var(--marine)}
a{color:inherit;text-decoration:none}
img{display:block;max-width:100%}
.wrap{width:min(1180px,90%);margin:0 auto}
.eyebrow{font-family:'Inter',sans-serif;font-size:11.5px;letter-spacing:.34em;text-transform:uppercase;font-weight:700;color:var(--orange)}

/* Header / nav multi-pages */
header{position:sticky;top:0;z-index:50;background:transparent;border-bottom:1px solid transparent;transition:background .45s ease,border-color .45s ease}
header::before{content:"";position:absolute;left:0;right:0;top:0;height:130px;background:linear-gradient(180deg,rgba(10,18,36,.55),rgba(10,18,36,0));z-index:-1;transition:opacity .45s;pointer-events:none}
header.solid{background:rgba(255,255,255,.94);backdrop-filter:blur(10px);border-bottom-color:var(--trait)}
header.solid::before{opacity:0}
.nav{display:flex;align-items:center;justify-content:space-between;padding:20px 0;gap:16px}
.logo{font-family:'Sora',sans-serif;font-weight:700;font-size:19px;letter-spacing:-.01em;color:#fff;white-space:nowrap;transition:color .45s ease;display:flex;align-items:center;gap:11px}
.logo .mark{display:inline-flex;align-items:center;justify-content:center;width:34px;height:34px;background:var(--orange);color:var(--marine);font-size:13px;font-weight:800;letter-spacing:.01em;border-radius:6px;transition:background .45s ease,color .45s ease}
.logo em{font-style:normal;font-weight:400;color:var(--orange-clair);transition:color .45s ease}
.nav ul{display:none;list-style:none;gap:var(--s3);font-size:13px;font-weight:600;letter-spacing:.02em}
.nav ul a{color:rgba(255,255,255,.82);transition:color .3s;padding-bottom:4px;border-bottom:2px solid transparent}
.nav ul a:hover{color:#fff}
.nav ul a[aria-current="page"]{color:#fff;border-bottom-color:var(--orange)}
.btn{display:inline-block;font-family:'Inter',sans-serif;font-weight:700;font-size:13px;letter-spacing:.03em;background:var(--orange);color:var(--marine);padding:13px 26px;border-radius:6px;transition:background .3s ease-out,color .3s,border-color .3s,transform .2s;cursor:pointer;border:none}
.btn:hover{background:#e8940a;transform:translateY(-1px)}
.btn.ghost{background:transparent;border:1.5px solid var(--marine);color:var(--marine)}
.btn.ghost:hover{border-color:var(--orange);color:var(--orange);background:transparent}
/* Nav : bouton orange sur le héro comme en solid */
header .btn{background:var(--orange);color:var(--marine);border:1.5px solid var(--orange)}
header .btn:hover{background:#e8940a}
header.solid .logo{color:var(--marine)}
header.solid .logo em{color:var(--orange)}
header.solid .nav ul a{color:var(--gris)}
header.solid .nav ul a:hover{color:var(--marine)}
header.solid .nav ul a[aria-current="page"]{color:var(--marine);border-bottom-color:var(--orange)}
header.solid .btn{background:var(--orange);color:var(--marine);border:1.5px solid var(--orange)}
header.solid .btn:hover{background:#e8940a}

/* ---------- Héros photo plein écran (Ken Burns + overlay marine) ---------- */
.hero-df{position:relative;min-height:92vh;display:flex;align-items:flex-end;overflow:hidden;background:var(--marine);color:#fff}
.hero-df .bg{position:absolute;inset:0;z-index:0}
.hero-df .bg img{width:100%;height:100%;object-fit:cover;transform-origin:center;animation:kenburns 20s ease-out both}
@keyframes kenburns{from{transform:scale(1.12)}to{transform:scale(1)}}
/* Overlay dégradé marine — lisibilité du texte + identité D.A.3 */
.hero-df::before{content:"";position:absolute;inset:0;z-index:1;
  background:
    radial-gradient(120% 90% at 90% 6%,rgba(252,163,17,.22),transparent 52%),
    linear-gradient(180deg,rgba(20,33,61,.28) 0%,rgba(20,33,61,.52) 45%,rgba(14,24,45,.90) 100%)}
/* motif "toits" en zigzag, très discret */
.hero-df::after{content:"";position:absolute;inset:0;z-index:1;opacity:.5;pointer-events:none;
  background-image:repeating-linear-gradient(135deg,rgba(252,163,17,.06) 0 2px,transparent 2px 28px);}
.hero-df .wrap{position:relative;z-index:2;padding:calc(var(--s5) + 30px) 0 var(--s5);width:min(1180px,90%)}
.hero-df .eyebrow{color:var(--orange)}
.hero-df h1{color:#fff;font-size:clamp(44px,7.6vw,102px);font-weight:800;max-width:13em;margin-top:18px;letter-spacing:-.03em;line-height:1.02}
.hero-df h1 em{font-style:normal;color:var(--orange)}
.hero-df .stand{font-size:19px;color:#c9d2e2;max-width:36em;margin:var(--s3) 0;font-weight:400}
.hero-df .cta-row{display:flex;flex-wrap:wrap;gap:14px}
.hero-df .btn.ghost{border-color:rgba(255,255,255,.55);color:#fff}
.hero-df .btn.ghost:hover{border-color:var(--orange);color:var(--orange)}
.hero-df .meta{display:flex;flex-wrap:wrap;gap:16px 40px;margin-top:var(--s4);padding-top:var(--s3);border-top:1px solid rgba(255,255,255,.20);font-size:12.5px;font-weight:500;letter-spacing:.03em;color:#aeb9cd}
.hero-df .meta b{color:#fff;font-family:'Sora',sans-serif;font-weight:700;font-size:19px;display:block;margin-bottom:2px}
.hero-df .scroll-hint{position:absolute;left:50%;bottom:22px;z-index:2;transform:translateX(-50%);color:rgba(255,255,255,.6);font-size:11px;letter-spacing:.26em;text-transform:uppercase;animation:bob 2.4s ease-in-out infinite}
@keyframes bob{0%,100%{transform:translate(-50%,0)}50%{transform:translate(-50%,7px)}}
.hero-df .up{opacity:0;transform:translateY(24px);animation:heroUp .9s cubic-bezier(.22,.61,.36,1) forwards}
.hero-df .up.d1{animation-delay:.15s}.hero-df .up.d2{animation-delay:.30s}.hero-df .up.d3{animation-delay:.45s}.hero-df .up.d4{animation-delay:.60s}
@keyframes heroUp{to{opacity:1;transform:none}}
@media (prefers-reduced-motion:reduce){
  .hero-df .bg img{animation:none}
  .hero-df .up{opacity:1;transform:none;animation:none}
  .hero-df .scroll-hint{animation:none}
}
/* Variante compacte (pages internes) */
.hero-df.compact{min-height:58vh}
.hero-df.compact .wrap{padding:calc(var(--s5) + 20px) 0 var(--s4)}
.hero-df.compact h1{font-size:clamp(38px,5.8vw,72px);max-width:15em}
.hero-df.compact .scroll-hint{display:none}

/* Bande signature */
.signature{border-top:1px solid var(--trait);border-bottom:1px solid var(--trait);padding:22px 0;background:var(--fond)}
.signature .wrap{display:flex;flex-wrap:wrap;gap:14px 44px;justify-content:center;font-family:'Sora',sans-serif;font-size:12px;letter-spacing:.16em;text-transform:uppercase;font-weight:600;color:var(--marine)}
.signature .wrap span{position:relative}

/* Bloc intro / section standard */
.section{padding:var(--s5) 0}
.section.tight{padding:var(--s4) 0}
.head{display:flex;flex-wrap:wrap;align-items:baseline;justify-content:space-between;gap:12px;margin-bottom:var(--s4)}
.head h2{font-size:clamp(32px,5vw,56px)}
.head p{font-size:15px;color:var(--gris);max-width:26em}
.section h2 em,.head h2 em{font-style:normal;color:var(--orange)}
.lead{font-size:18.5px;color:#2c3548;max-width:40em}

/* Piliers (cartes services / atouts) */
.pillars{display:grid;grid-template-columns:1fr;gap:2px}
.pcell{background:var(--fond);padding:34px 30px;border-top:3px solid var(--orange)}
.pcell .k{font-family:'Sora',sans-serif;font-weight:800;font-size:14px;letter-spacing:.04em;color:var(--orange)}
.pcell b{display:block;font-family:'Sora',sans-serif;font-size:21px;color:var(--marine);margin:8px 0 10px;font-weight:700;letter-spacing:-.01em}
.pcell p{font-size:14.5px;color:#454e60}
.pcell .facts{display:flex;flex-wrap:wrap;gap:8px;margin-top:16px}
.pcell .facts span{font-size:11.5px;font-weight:600;color:var(--marine);border:1px solid var(--trait);padding:6px 13px;border-radius:20px}

/* Liste de services détaillée (alternée, sans image) */
.serv-list{display:grid;gap:2px}
.srow{background:var(--fond);border-left:3px solid var(--orange);padding:38px 34px;display:grid;gap:16px;align-items:start}
.srow .num{font-family:'Sora',sans-serif;font-weight:800;font-size:14px;letter-spacing:.06em;text-transform:uppercase;color:var(--orange)}
.srow h3{font-size:clamp(24px,3.2vw,34px);margin:10px 0 12px;font-weight:700;letter-spacing:-.02em}
.srow p{font-size:16px;color:#2c3548;max-width:40em}
.srow .facts{display:flex;flex-wrap:wrap;gap:9px;margin-top:18px}
.srow .facts span{font-size:12px;font-weight:600;color:var(--marine);border:1px solid var(--trait);padding:7px 15px;border-radius:20px;background:var(--blanc)}

/* Chiffres / preuve */
.stats{display:grid;grid-template-columns:1fr;gap:2px;background:var(--marine)}
.stat{padding:40px 30px;color:#fff}
.stat .n{font-family:'Sora',sans-serif;font-size:clamp(40px,6vw,58px);font-weight:800;color:var(--orange);line-height:1;letter-spacing:-.02em}
.stat .l{font-size:13px;color:#aeb9cd;margin-top:12px;letter-spacing:.02em}

/* Bloc marine (bande foncée) */
.dark{background:var(--marine);color:var(--blanc);padding:var(--s5) 0;position:relative;overflow:hidden}
.dark::after{content:"";position:absolute;inset:0;opacity:.6;pointer-events:none;background-image:repeating-linear-gradient(135deg,rgba(252,163,17,.05) 0 2px,transparent 2px 28px)}
.dark .wrap{position:relative;z-index:1}
.dark .eyebrow{color:var(--orange)}
.dark h2{color:#fff;font-size:clamp(28px,4.4vw,48px);margin:12px 0 var(--s4);max-width:16em;font-weight:800;letter-spacing:-.02em}
.dark h2 em{font-style:normal;color:var(--orange)}
.dark .grid2{display:grid;gap:2px}
.dcell{background:rgba(255,255,255,.05);padding:32px 28px;border-top:3px solid var(--orange)}
.dcell b{display:block;font-family:'Sora',sans-serif;font-size:19px;color:#fff;margin-bottom:8px;font-weight:700;letter-spacing:-.01em}
.dcell p{font-size:14.5px;color:#c1cbdc}
.dark .quote{margin-top:var(--s4);border-top:1px solid var(--trait-clair);padding-top:var(--s4)}
.dark blockquote{font-family:'Sora',sans-serif;font-size:clamp(22px,3vw,32px);color:#fff;max-width:23em;line-height:1.28;font-weight:600;letter-spacing:-.02em}
.dark cite{display:block;margin-top:14px;font-family:'Inter',sans-serif;font-style:normal;font-size:12.5px;font-weight:700;letter-spacing:.1em;color:var(--orange)}

/* Étapes numérotées (gestion / process) */
.steps{display:grid;gap:2px;counter-reset:st}
.step{background:var(--fond);padding:30px 30px 30px 84px;position:relative;border-top:1px solid var(--trait)}
.step::before{counter-increment:st;content:counter(st,decimal-leading-zero);position:absolute;left:30px;top:28px;font-family:'Sora',sans-serif;font-weight:800;font-size:22px;color:var(--orange)}
.step b{display:block;font-family:'Sora',sans-serif;font-size:19px;color:var(--marine);margin-bottom:6px;font-weight:700;letter-spacing:-.01em}
.step p{font-size:14.5px;color:#454e60;max-width:44em}

/* Bloc éditorial / texte long */
.prose{padding:var(--s4) 0 var(--s5)}
.prose .col{max-width:62ch}
.prose p{margin-bottom:var(--s3);font-size:17px;color:#242d3f}
.prose p .lead-in{font-family:'Sora',sans-serif;font-weight:700;font-size:1.02em;color:var(--marine)}

/* Avis clients (note 4,9/5) */
.rating{display:flex;flex-wrap:wrap;align-items:center;gap:14px 26px;background:var(--fond);border:1px solid var(--trait);border-left:3px solid var(--orange);padding:26px 30px;margin-bottom:var(--s4)}
.rating .big{font-family:'Sora',sans-serif;font-size:46px;font-weight:800;color:var(--marine);line-height:1;letter-spacing:-.03em}
.rating .stars{color:var(--orange);font-size:20px;letter-spacing:2px}
.rating .txt{font-size:14px;color:var(--gris)}
.reviews{display:grid;grid-template-columns:1fr;gap:2px}
.rev{background:var(--fond);padding:28px 26px;border-top:3px solid var(--orange)}
.rev .stars{color:var(--orange);font-size:14px;letter-spacing:2px;margin-bottom:10px}
.rev p{font-family:'Sora',sans-serif;font-weight:500;font-size:15.5px;color:#242d3f;line-height:1.5}
.rev cite{display:block;margin-top:14px;font-style:normal;font-size:12px;font-weight:700;letter-spacing:.06em;color:var(--gris)}

/* Zone d'intervention */
.zone{display:flex;flex-wrap:wrap;gap:10px;margin-top:var(--s3)}
.zone span{font-size:12.5px;font-weight:600;color:var(--marine);border:1px solid var(--trait);padding:8px 16px;border-radius:20px;background:var(--fond)}

/* CTA bande finale */
.cta-band{background:var(--marine);color:#fff;padding:var(--s5) 0;text-align:center;position:relative;overflow:hidden}
.cta-band::after{content:"";position:absolute;inset:0;opacity:.6;pointer-events:none;background:radial-gradient(90% 120% at 50% 0%,rgba(252,163,17,.16),transparent 60%)}
.cta-band .wrap{position:relative;z-index:1}
.cta-band h2{color:#fff;font-size:clamp(30px,4.6vw,52px);font-weight:800;max-width:16em;margin:0 auto 10px;letter-spacing:-.02em}
.cta-band h2 em{font-style:normal;color:var(--orange)}
.cta-band p{color:#c1cbdc;max-width:32em;margin:0 auto var(--s3)}
.cta-band .cta-row{display:flex;flex-wrap:wrap;gap:14px;justify-content:center}
.cta-band .btn.ghost{border-color:rgba(255,255,255,.55);color:#fff}
.cta-band .btn.ghost:hover{border-color:var(--orange);color:var(--orange)}

/* Contact */
.contact-grid{display:grid;gap:var(--s4);padding:var(--s4) 0 var(--s5)}
.cinfo b{display:block;font-family:'Sora',sans-serif;font-size:19px;color:var(--marine);margin-bottom:6px;font-weight:700;letter-spacing:-.01em}
.cinfo p{font-size:16px;color:#242d3f;margin-bottom:var(--s3)}
.cinfo a{color:var(--marine);border-bottom:2px solid var(--orange)}
.serv{display:flex;flex-wrap:wrap;gap:9px;margin-top:8px}
.serv span{font-size:12.5px;color:var(--marine);border:1px solid var(--trait);padding:7px 15px;border-radius:20px}
form label{display:block;font-size:12.5px;font-weight:700;letter-spacing:.04em;color:var(--marine);margin:16px 0 6px;text-transform:uppercase}
form input,form textarea,form select{width:100%;font-family:inherit;font-size:15px;color:var(--encre);background:var(--fond);border:1px solid var(--trait);padding:13px 15px;border-radius:6px}
form input:focus,form textarea:focus,form select:focus{outline:none;border-color:var(--orange)}
form .btn{margin-top:22px}

/* Footer */
footer{background:var(--marine);color:#c1cbdc;padding:var(--s5) 0 var(--s4);font-size:15px}
.foot{display:grid;gap:var(--s3)}
.foot b{display:block;color:#fff;font-family:'Sora',sans-serif;font-size:17px;margin-bottom:8px;font-weight:700;letter-spacing:-.01em}
.foot a{color:#c1cbdc}
.foot a:hover{color:var(--orange)}
.foot ul{list-style:none;display:grid;gap:6px;font-size:14px}
.foot p{font-size:14px;color:#aeb9cd}
.legal{border-top:1px solid var(--trait-clair);margin-top:var(--s4);padding-top:var(--s3);font-size:12px;color:#8b96ac;display:flex;flex-wrap:wrap;gap:14px;justify-content:space-between}

/* Galerie « Aperçu de nos biens » */
.gallery{display:grid;grid-template-columns:1fr;gap:12px;margin-top:var(--s4)}
.gcard{position:relative;overflow:hidden;background:var(--fond-2);border-radius:8px;cursor:zoom-in;aspect-ratio:4/3}
.gcard img{width:100%;height:100%;object-fit:cover;display:block;transition:transform .9s cubic-bezier(.22,.61,.36,1)}
.gcard:hover img{transform:scale(1.05)}
.gcard::after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,transparent 45%,rgba(14,24,45,.72) 100%);opacity:.9;transition:opacity .3s}
.gcard .glabel{position:absolute;left:0;right:0;bottom:0;z-index:1;padding:16px 18px;color:#fff}
.gcard .glabel .gtag{font-family:'Sora',sans-serif;font-weight:800;font-size:11px;letter-spacing:.14em;text-transform:uppercase;color:var(--orange-clair)}
.gcard .glabel .gname{display:block;font-family:'Sora',sans-serif;font-weight:600;font-size:16px;margin-top:3px;letter-spacing:-.01em}
.gnote{font-size:13px;color:var(--gris);margin-top:18px}

/* Lightbox galerie */
.lightbox{position:fixed;inset:0;z-index:100;background:rgba(10,18,36,.95);display:flex;align-items:center;justify-content:center;padding:6vh 5vw;cursor:zoom-out;opacity:0;visibility:hidden;transition:opacity .3s ease}
.lightbox.open{opacity:1;visibility:visible}
.lightbox img{max-width:100%;max-height:86vh;object-fit:contain;border-radius:8px;box-shadow:0 24px 70px rgba(0,0,0,.6);transform:scale(.97);transition:transform .3s ease}
.lightbox.open img{transform:scale(1)}
.lightbox .lb-cap{position:absolute;bottom:26px;left:0;right:0;text-align:center;color:#fff;font-size:13px;letter-spacing:.04em;padding:0 20px}
.lightbox .lb-close{position:absolute;top:18px;right:26px;color:#fff;font-size:34px;line-height:1;cursor:pointer;opacity:.85}
.lightbox .lb-close:hover{opacity:1;color:var(--orange-clair)}

/* Badge maquette */
.badge-asalis{position:fixed;left:14px;bottom:14px;z-index:60;font-family:'Inter',sans-serif;font-weight:600;font-size:11px;background:var(--orange);color:var(--marine);padding:7px 14px;border-radius:6px;box-shadow:0 4px 14px rgba(20,33,61,.28)}

/* Reveal */
.js .rv{opacity:0;transform:translateY(26px);transition:opacity .8s ease,transform .8s cubic-bezier(.22,.61,.36,1)}
.js .rv.in{opacity:1;transform:none}
@media (prefers-reduced-motion:reduce){.js .rv{opacity:1;transform:none;transition:none}}

@media (min-width:640px){
  .gallery{grid-template-columns:repeat(2,1fr)}
}
@media (min-width:760px){
  .pillars{grid-template-columns:repeat(2,1fr);gap:2px}
  .reviews{grid-template-columns:repeat(2,1fr)}
}
@media (min-width:860px){
  .nav ul{display:flex}
  .pillars{grid-template-columns:repeat(2,1fr)}
  .stats{grid-template-columns:repeat(4,1fr)}
  .dark .grid2{grid-template-columns:repeat(3,1fr)}
  .reviews{grid-template-columns:repeat(3,1fr)}
  .contact-grid{grid-template-columns:1fr 1fr;gap:var(--s5)}
  .foot{grid-template-columns:1.4fr 1fr 1fr 1fr}
  .srow{grid-template-columns:.9fr 1.1fr;gap:var(--s4)}
  .gallery{grid-template-columns:repeat(4,1fr)}
}
@media (min-width:1024px){
  .pillars.four{grid-template-columns:repeat(4,1fr)}
}