:root{
  --noir:#0d0f14;--noir2:#171a22;--gris:#5b6270;--clair:#f4f5f7;--blanc:#fff;
  --accent:#ff4d00;--accent2:#ff7a1a;--bleu:#1f4bd8;--rouge:#e3262e;
  --radius:14px;--max:1180px;
  --titre:"Barlow Condensed",Impact,"Arial Narrow",sans-serif;
  --texte:"Inter",system-ui,-apple-system,"Segoe UI",Roboto,Arial,sans-serif;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;font-family:var(--texte);color:var(--noir);background:var(--blanc);line-height:1.65;font-size:17px}
img{max-width:100%;height:auto;display:block}
a{color:var(--accent)}
.wrap{max-width:var(--max);margin:0 auto;padding:0 20px}
h1,h2,h3{font-family:var(--titre);text-transform:uppercase;line-height:1.05;margin:0 0 .5em;letter-spacing:.01em}
h1{font-size:clamp(2.3rem,6vw,4.4rem)}
h2{font-size:clamp(1.8rem,4vw,2.8rem)}
h3{font-size:1.45rem}
p{margin:0 0 1em}
.tricolore{display:inline-flex;height:6px;width:54px;border-radius:3px;overflow:hidden;margin-bottom:14px}
.tricolore i{flex:1}.tricolore i:nth-child(1){background:#1f4bd8}.tricolore i:nth-child(2){background:#fff}.tricolore i:nth-child(3){background:#e3262e}

/* Barre top */
.topbar{background:var(--accent);color:#fff;font-size:.88rem;font-weight:600;text-align:center;padding:7px 12px}
.topbar a{color:#fff}

/* Header */
header.site{position:sticky;top:0;z-index:50;background:rgba(13,15,20,.97);backdrop-filter:blur(6px);color:#fff}
header.site .wrap{display:flex;align-items:center;justify-content:space-between;gap:16px;min-height:72px}
.logo{font-family:var(--titre);font-weight:800;font-size:1.7rem;color:#fff;text-decoration:none;text-transform:uppercase;letter-spacing:.02em}
.logo span{color:var(--accent)}
nav.menu ul{list-style:none;margin:0;padding:0;display:flex;gap:4px;align-items:center}
nav.menu a{color:#e8eaee;text-decoration:none;font-weight:600;font-size:.95rem;padding:10px 12px;border-radius:8px}
nav.menu a:hover,nav.menu a[aria-current=page]{color:#fff;background:rgba(255,255,255,.08)}
nav.menu a.btn{background:var(--accent);color:#fff;margin-left:6px}
.burger{display:none;background:none;border:0;color:#fff;font-size:1.8rem;cursor:pointer;padding:6px}
@media (max-width:920px){
  .burger{display:block}
  nav.menu{display:none;position:absolute;top:72px;left:0;right:0;background:var(--noir)}
  nav.menu.open{display:block}
  nav.menu ul{flex-direction:column;align-items:stretch;padding:10px 16px 18px}
  nav.menu a{display:block;padding:13px 12px}
  nav.menu a.btn{margin:8px 0 0;text-align:center}
}

/* Boutons */
.btn{display:inline-block;background:var(--accent);color:#fff;font-weight:700;text-decoration:none;padding:15px 26px;border-radius:10px;border:0;cursor:pointer;font-size:1rem;transition:transform .15s,background .15s}
.btn:hover{background:var(--accent2);transform:translateY(-2px)}
.btn.ghost{background:transparent;border:2px solid rgba(255,255,255,.6)}
.btn.ghost:hover{background:rgba(255,255,255,.1)}
.btn.dark{background:var(--noir)}
.actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:22px}

/* Hero */
.hero{position:relative;color:#fff;background:var(--noir) center/cover no-repeat;overflow:hidden}
.hero::before{content:"";position:absolute;inset:0;background:linear-gradient(100deg,rgba(13,15,20,.95) 0%,rgba(13,15,20,.75) 48%,rgba(13,15,20,.25) 100%)}
.hero .wrap{position:relative;padding:96px 20px 88px}
.hero .kicker{display:inline-block;background:rgba(255,77,0,.16);color:#ffb08a;border:1px solid rgba(255,77,0,.5);font-weight:700;font-size:.85rem;text-transform:uppercase;letter-spacing:.08em;padding:6px 12px;border-radius:30px;margin-bottom:18px}
.hero h1 em{font-style:normal;color:var(--accent)}
.hero p.lead{font-size:1.2rem;max-width:620px;color:#d9dce3}
.hero.small .wrap{padding:64px 20px 56px}
.hero.small h1{font-size:clamp(2rem,5vw,3.4rem)}

/* Chiffres */
.stats{background:var(--noir2);color:#fff}
.stats .wrap{display:grid;grid-template-columns:repeat(4,1fr);gap:10px;padding:28px 20px}
.stat{text-align:center}
.stat b{display:block;font-family:var(--titre);font-size:2.4rem;color:var(--accent);line-height:1}
.stat span{font-size:.92rem;color:#c3c7d0}
@media (max-width:720px){.stats .wrap{grid-template-columns:repeat(2,1fr);row-gap:22px}}

/* Sections */
section.bloc{padding:80px 0}
section.bloc.gris{background:var(--clair)}
section.bloc.noir{background:var(--noir);color:#fff}
.intro{max-width:760px;margin-bottom:36px}
.intro p{color:var(--gris);font-size:1.08rem}
.noir .intro p{color:#c3c7d0}
.grid{display:grid;gap:24px}
.g2{grid-template-columns:repeat(2,1fr)}
.g3{grid-template-columns:repeat(3,1fr)}
.g4{grid-template-columns:repeat(4,1fr)}
@media (max-width:920px){.g3,.g4{grid-template-columns:repeat(2,1fr)}}
@media (max-width:640px){.g2,.g3,.g4{grid-template-columns:1fr}section.bloc{padding:56px 0}}
.carte{background:#fff;border-radius:var(--radius);padding:28px;box-shadow:0 2px 0 rgba(0,0,0,.03),0 10px 30px rgba(13,15,20,.07)}
.noir .carte{background:var(--noir2);box-shadow:none;color:#fff}
.carte .ico{width:48px;height:48px;border-radius:12px;background:rgba(255,77,0,.12);color:var(--accent);display:grid;place-items:center;font-size:1.5rem;margin-bottom:14px}
.carte p{color:var(--gris);margin:0}
.noir .carte p{color:#c3c7d0}
.split{display:grid;grid-template-columns:1.05fr 1fr;gap:48px;align-items:center}
.split.inv>:first-child{order:2}
@media (max-width:860px){.split{grid-template-columns:1fr;gap:28px}.split.inv>:first-child{order:0}}
.photo{border-radius:var(--radius);overflow:hidden;background:linear-gradient(135deg,#232733,#0d0f14);aspect-ratio:4/3;position:relative}
.photo img{width:100%;height:100%;object-fit:cover}
.photo.wide{aspect-ratio:2/1}
ul.check{list-style:none;padding:0;margin:0 0 1em}
ul.check li{position:relative;padding-left:32px;margin-bottom:10px}
ul.check li::before{content:"✓";position:absolute;left:0;top:0;color:#fff;background:var(--accent);width:22px;height:22px;border-radius:50%;font-size:.8rem;font-weight:800;display:grid;place-items:center;margin-top:3px}

/* Etapes */
.etapes{counter-reset:e}
.etape{position:relative;padding-top:58px}
.etape::before{counter-increment:e;content:counter(e,decimal-leading-zero);position:absolute;top:0;left:0;font-family:var(--titre);font-size:3rem;font-weight:800;color:var(--accent);line-height:1}

/* Galerie */
.galerie{display:grid;grid-template-columns:repeat(4,1fr);gap:14px}
.galerie figure{margin:0;border-radius:12px;overflow:hidden;background:linear-gradient(135deg,#232733,#0d0f14);aspect-ratio:1}
.galerie img{width:100%;height:100%;object-fit:cover;transition:transform .3s}
.galerie figure:hover img{transform:scale(1.05)}
@media (max-width:820px){.galerie{grid-template-columns:repeat(2,1fr)}}

/* FAQ */
.faq details{background:#fff;border-radius:12px;margin-bottom:12px;padding:0 22px;box-shadow:0 4px 18px rgba(13,15,20,.06)}
.faq summary{cursor:pointer;font-weight:700;padding:18px 0;list-style:none;position:relative;padding-right:30px}
.faq summary::after{content:"+";position:absolute;right:0;top:12px;font-size:1.6rem;color:var(--accent)}
.faq details[open] summary::after{content:"–"}
.faq details p{color:var(--gris);padding-bottom:16px;margin:0}

/* CTA */
.cta{background:linear-gradient(110deg,var(--accent),#d93800);color:#fff;border-radius:20px;padding:48px;display:flex;justify-content:space-between;align-items:center;gap:24px;flex-wrap:wrap}
.cta h2{margin:0 0 .2em}
.cta p{margin:0;color:#ffe3d6}
.cta .btn{background:var(--noir)}
@media (max-width:640px){.cta{padding:32px 22px}}

/* Article */
.article{max-width:800px}
.article h2{margin-top:1.4em;font-size:2rem}
.article h3{margin-top:1.2em}
.fil{font-size:.88rem;color:#aab0bc;margin-bottom:14px}
.fil a{color:#d9dce3;text-decoration:none}
.fil a:hover{text-decoration:underline}

/* Formulaire */
form.devis{display:grid;gap:16px}
form.devis .ligne{display:grid;grid-template-columns:1fr 1fr;gap:16px}
@media (max-width:640px){form.devis .ligne{grid-template-columns:1fr}}
form.devis label{font-weight:600;font-size:.92rem;display:block;margin-bottom:6px}
form.devis input,form.devis select,form.devis textarea{width:100%;padding:13px 14px;border:1.5px solid #d6d9e0;border-radius:10px;font:inherit;background:#fff}
form.devis input:focus,form.devis select:focus,form.devis textarea:focus{outline:none;border-color:var(--accent)}
form.devis .rgpd{font-size:.85rem;color:var(--gris);display:flex;gap:10px;align-items:flex-start}
form.devis .rgpd input{width:auto;margin-top:5px}
.hp{position:absolute;left:-5000px}

/* Réseau de sites */
.reseau{display:grid;grid-template-columns:repeat(4,1fr);gap:16px}
.reseau a{display:block;text-decoration:none;color:#fff;background:var(--noir2);border:1px solid rgba(255,255,255,.08);border-radius:12px;padding:20px;transition:border-color .2s,transform .2s}
.reseau a:hover{border-color:var(--accent);transform:translateY(-3px)}
.reseau b{display:block;font-family:var(--titre);font-size:1.35rem;text-transform:uppercase;color:#fff}
.reseau span{font-size:.9rem;color:#aab0bc}
@media (max-width:920px){.reseau{grid-template-columns:repeat(2,1fr)}}
@media (max-width:520px){.reseau{grid-template-columns:1fr}}

/* Footer */
footer.site{background:#08090c;color:#aab0bc;font-size:.93rem;padding:56px 0 24px}
footer.site .cols{display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr;gap:32px}
footer.site h3{color:#fff;font-size:1.1rem;margin-bottom:14px}
footer.site ul{list-style:none;padding:0;margin:0}
footer.site li{margin-bottom:8px}
footer.site a{color:#d0d4dc;text-decoration:none}
footer.site a:hover{color:var(--accent)}
footer.site .bas{border-top:1px solid #1d2029;margin-top:40px;padding-top:20px;display:flex;justify-content:space-between;flex-wrap:wrap;gap:10px;font-size:.85rem}
@media (max-width:820px){footer.site .cols{grid-template-columns:1fr 1fr}}
@media (max-width:520px){footer.site .cols{grid-template-columns:1fr}}

/* Bouton tel mobile */
.tel-flottant{display:none}
@media (max-width:720px){.tel-flottant{display:flex;position:fixed;right:16px;bottom:16px;z-index:60;width:58px;height:58px;border-radius:50%;background:var(--accent);color:#fff;align-items:center;justify-content:center;font-size:1.6rem;text-decoration:none;box-shadow:0 8px 24px rgba(255,77,0,.45)}}

.etape.carte::before{top:24px;left:28px}