*{box-sizing:border-box;margin:0;padding:0}
:root{
 --bleu:#2563eb;--bleu-2:#1d4ed8;--navy:#0a1628;--txt:#0f172a;--muted:#4d5c72;
 --ligne:#e2e8f0;--fond:#ffffff;--doux:#f4f7fb;--radius:14px;
 --ombre:0 10px 30px rgba(15,23,42,.06);
}
html{scroll-behavior:smooth}
body{font-family:-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,Inter,Arial,sans-serif;
 color:var(--txt);background:var(--fond);line-height:1.65;-webkit-font-smoothing:antialiased;font-size:16px}
img{max-width:100%;height:auto;display:block}
a{text-decoration:none;color:inherit}
p{color:var(--muted)}
.wrap{max-width:1200px;margin:0 auto;padding:0 28px}
.skip{position:absolute;left:-9999px}
.skip:focus{left:8px;top:8px;background:#fff;padding:10px;border-radius:8px;z-index:100}

/* ---- en-tête ---- */
.hdr{position:sticky;top:0;z-index:50;background:#fff;border-bottom:1px solid var(--ligne)}
.hdr-in{display:flex;align-items:center;gap:26px;height:80px}
.brand{display:flex;align-items:center;gap:10px}
.embleme{height:38px;width:auto}
.nom{font-size:19px;font-weight:800;letter-spacing:.09em;color:var(--navy)}
.nav{display:flex;gap:20px;flex:1;font-size:14.5px;font-weight:500}
.nav a{padding:6px 0;border-bottom:2px solid transparent}
.nav a:hover,.nav a[aria-current]{border-bottom-color:var(--bleu);color:var(--bleu)}
.hdr-actions{display:flex;align-items:center;gap:16px}
.tel{font-weight:700;font-size:15px;white-space:nowrap;color:var(--navy)}
.burger{display:none;background:none;border:0;font-size:22px;cursor:pointer}

.btn{display:inline-block;padding:12px 22px;border-radius:10px;font-weight:600;font-size:14.5px;
 white-space:nowrap;transition:transform .15s ease,box-shadow .15s ease;border:0;cursor:pointer}
.btn:hover{transform:translateY(-1px)}
.btn-bleu{background:var(--bleu);color:#fff;box-shadow:0 6px 18px rgba(37,99,235,.25)}
.btn-navy{background:var(--navy);color:#fff}
.btn-ghost{border:1.5px solid rgba(255,255,255,.55);color:#fff;padding:12px 22px;border-radius:10px;font-weight:600}
.btn-ligne{border:1.5px solid var(--navy);color:var(--navy)}

/* ---- bandeaux ---- */
.hero{position:relative;color:#fff;background:linear-gradient(100deg,rgba(10,22,40,.94) 0%,rgba(10,22,40,.76) 56%,rgba(10,22,40,.42) 100%),url('assets/hero.webp') center/cover}
.hero-in{padding:96px 0 88px}
.hero h1{font-size:clamp(32px,4.2vw,58px);line-height:1.06;letter-spacing:-.02em;font-weight:800;max-width:820px}
.hero .acc{max-width:640px;margin-top:22px;font-size:18px;color:#d7e2ef}
.hero-cta{display:flex;gap:14px;margin-top:34px;flex-wrap:wrap}
.eyebrow{font-size:12.5px;font-weight:700;letter-spacing:.14em;text-transform:uppercase;color:var(--bleu)}
.eyebrow-clair{color:#8ab4ff}
.bande{background:var(--bleu);color:#fff;padding:16px 0}
.bande-in{display:grid;grid-template-columns:repeat(4,1fr);gap:16px;font-size:14px;font-weight:600;align-items:center}
.bande-in span{display:flex;gap:7px;align-items:flex-start;line-height:1.35}
@media(max-width:1000px){.bande-in{grid-template-columns:1fr 1fr}}
@media(max-width:640px){.bande-in{grid-template-columns:1fr}}

.page-hero{background:var(--navy);color:#fff;padding:64px 0 56px}
.page-hero h1{font-size:clamp(28px,3.4vw,44px);line-height:1.12;letter-spacing:-.015em;font-weight:800;max-width:900px;margin-top:12px}
.page-hero .acc{color:#c9d8e8;max-width:760px;margin-top:16px}
.fil{font-size:12.5px;color:#93a6bf;margin-bottom:8px}
.fil a{border-bottom:1px solid rgba(255,255,255,.25)}

/* ---- sections ---- */
section{padding:78px 0}
section.doux{background:var(--doux)}
h2{font-size:clamp(24px,2.6vw,36px);line-height:1.16;letter-spacing:-.015em;font-weight:800}
h3{font-size:19px;font-weight:700}
.entete-section{max-width:760px}
.entete-section p{margin-top:14px}
.grille3{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;margin-top:40px}
.grille2{display:grid;grid-template-columns:1fr 1fr;gap:26px;margin-top:34px}
.carte{background:#fff;border:1px solid var(--ligne);border-radius:var(--radius);padding:28px 24px;box-shadow:var(--ombre)}
.carte p{margin-top:8px;font-size:15px}
.carte .num{width:42px;height:42px;border-radius:12px;background:rgba(37,99,235,.1);color:var(--bleu-2);
 display:grid;place-items:center;font-weight:800;font-size:14px;margin-bottom:14px}
.prose p + p{margin-top:14px}
.prose h2,.prose h3{margin-top:34px}
.prose ul{margin:14px 0 0 20px;color:var(--muted)}
.prose li{margin-top:8px}
.liste{list-style:none;display:grid;gap:12px;margin-top:18px}
.liste li{display:flex;gap:11px;color:var(--muted);font-size:15.5px}
.liste li:before{content:"✓";color:var(--bleu);font-weight:800;flex:0 0 auto}
.duo{display:grid;grid-template-columns:1.05fr .95fr;gap:56px;align-items:center}
.produit{display:grid;grid-template-columns:1fr 1fr;gap:48px;align-items:center}
.produit img{width:100%;height:auto;aspect-ratio:16/10;object-fit:cover;border-radius:18px}
.duo img{border-radius:18px;box-shadow:0 24px 60px rgba(15,23,42,.16);width:100%;height:auto;aspect-ratio:4/3;object-fit:cover}
.lien{color:var(--bleu);font-weight:700;font-size:14px}
.chiffres{display:grid;grid-template-columns:repeat(4,1fr);gap:18px;margin-top:40px}
.chiffre{background:#fff;border:1px solid var(--ligne);border-radius:14px;padding:22px}
.chiffre b{display:block;font-size:28px;letter-spacing:-.02em;color:var(--navy)}
.chiffre span{font-size:13.5px;color:var(--muted)}
.badges{display:flex;gap:16px;flex-wrap:wrap;margin-top:26px}
.chip{background:#fff;border:1px solid var(--ligne);border-radius:12px;padding:10px 16px;display:grid;place-items:center}
.chip img{height:50px;width:auto}
.part{display:flex;gap:48px;align-items:center;flex-wrap:wrap;opacity:.85;margin-top:26px}
.part img{height:48px;width:auto;filter:grayscale(1)}
.marques{display:flex;gap:14px;flex-wrap:wrap;margin-top:24px}
.marques span{background:#fff;border:1px solid var(--ligne);border-radius:999px;padding:9px 18px;
 font-weight:700;font-size:14px;color:var(--navy)}
.portrait{display:grid;grid-template-columns:.8fr 1.2fr;gap:44px;align-items:center}
.portrait img{width:100%;height:auto;aspect-ratio:4/5;object-fit:cover;object-position:center top;
 border-radius:18px;box-shadow:0 24px 60px rgba(15,23,42,.18)}
blockquote{margin-top:18px;padding-left:20px;border-left:3px solid var(--bleu);color:var(--muted);
 font-size:17px;line-height:1.6}
blockquote footer{margin-top:12px;font-size:14px;font-weight:700;color:var(--navy)}
@media(max-width:1000px){.portrait{grid-template-columns:1fr}}
.captures{border:1px solid var(--ligne);border-radius:14px;box-shadow:0 18px 50px rgba(15,23,42,.12);margin-top:26px}
.equipe-photos{display:grid;grid-template-columns:repeat(4,1fr);gap:24px;margin-top:40px}
.membre-photo{background:#fff;border:1px solid var(--ligne);border-radius:16px;overflow:hidden;
 box-shadow:var(--ombre);transition:transform .18s ease,box-shadow .18s ease}
.membre-photo:hover{transform:translateY(-3px);box-shadow:0 18px 44px rgba(15,23,42,.12)}
.membre-photo img{width:100%;height:auto;aspect-ratio:4/5;object-fit:cover;object-position:center top}
.membre-photo .infos{padding:16px 18px 20px}
.membre-photo strong{display:block;font-size:16px;letter-spacing:-.01em}
.membre-photo span{display:block;color:var(--bleu-2);font-size:13px;font-weight:600;margin-top:3px}
.membre-photo p{margin-top:9px;font-size:14px;color:var(--muted);line-height:1.5}
.membre-photo.rejoindre{display:grid;place-items:center;text-align:center;padding:28px 20px;
 background:linear-gradient(160deg,#f4f8ff,#eaf1fd)}
@media(max-width:1000px){.equipe-photos{grid-template-columns:1fr 1fr}}
@media(max-width:640px){.equipe-photos{grid-template-columns:1fr}}
.cta{background:linear-gradient(120deg,var(--navy),#123255);border-radius:22px;color:#fff;padding:52px;
 display:flex;justify-content:space-between;align-items:center;gap:34px;flex-wrap:wrap}
.cta h2{color:#fff}
.cta p{color:#c8d6e6;margin-top:10px}

/* ---- formulaire ---- */
.form{background:#fff;border:1px solid var(--ligne);border-radius:18px;padding:34px;box-shadow:var(--ombre);max-width:750px}
.form .ligne-form{display:grid;grid-template-columns:1fr 1fr;gap:18px}
.form label{display:block;font-size:13.5px;font-weight:600;margin-bottom:6px}
.form input,.form select,.form textarea{width:100%;padding:11px 13px;border:1px solid #cbd5e1;border-radius:9px;
 font:inherit;font-size:15px;color:var(--txt);background:#fff}
.form input:focus,.form textarea:focus,.form select:focus{outline:2px solid rgba(37,99,235,.35);border-color:var(--bleu)}
.form textarea{min-height:130px;resize:vertical}
.form .champ{margin-top:16px}
.form .hp{position:absolute;left:-9999px}
.form-msg{margin-top:16px;font-size:14.5px;font-weight:600}
.form-msg.ok{color:#15803d}
.form-msg.ko{color:#b91c1c}
.aide{font-size:12.5px;color:var(--muted);margin-top:8px}

/* ---- pied ---- */
.ftr{background:var(--navy);color:#c6d2e2;padding:58px 0 0}
.ftr-in{display:grid;grid-template-columns:1.6fr 1fr 1fr 1fr;gap:34px}
.ftr h4{color:#fff;font-size:13px;letter-spacing:.1em;text-transform:uppercase;margin-bottom:14px}
.ftr ul{list-style:none;display:grid;gap:9px;font-size:14px}
.ftr a:hover{color:#fff}
.ftr-brand p{font-size:14px;margin-top:14px;color:#9fb0c6}
.logo-ftr{height:40px;width:auto}
.ftr-contact{color:#fff!important;font-weight:600}
.ftr-bas{display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;margin-top:42px;padding:22px 0;
 border-top:1px solid rgba(255,255,255,.1);font-size:12.5px;color:#7d8ea6}

/* ---- responsive ---- */
@media(max-width:1000px){
 .grille3,.chiffres{grid-template-columns:1fr 1fr}
 .duo,.grille2{grid-template-columns:1fr;gap:32px}
 .form .ligne-form{grid-template-columns:1fr}
 .ftr-in{grid-template-columns:1fr 1fr}
}
@media(max-width:760px){
 .nav{display:none;position:absolute;top:80px;left:0;right:0;background:#fff;flex-direction:column;
  padding:18px 28px;border-bottom:1px solid var(--ligne);gap:14px}
 .nav.ouvert{display:flex}
 .burger{display:block;margin-left:auto}
 .hdr-in{gap:12px}
 .tel{display:none}
 .grille3,.chiffres,.ftr-in{grid-template-columns:1fr}
 .hero-in{padding:64px 0 56px}
 section{padding:56px 0}
 .cta{padding:34px}
}

/* --- améliorations : accessibilité, FAQ, 404 --- */
:focus-visible{outline:3px solid rgba(37,99,235,.55);outline-offset:2px;border-radius:6px}
.faq{display:grid;gap:12px;margin-top:32px;max-width:900px}
.faq details{background:#fff;border:1px solid var(--ligne);border-radius:12px;padding:0 20px}
.faq summary{cursor:pointer;font-weight:700;font-size:16px;padding:16px 0;list-style:none;position:relative;padding-right:28px}
.faq summary::-webkit-details-marker{display:none}
.faq summary:after{content:"+";position:absolute;right:0;top:14px;font-size:20px;color:var(--bleu);font-weight:700}
.faq details[open] summary:after{content:"–"}
.faq details p{padding-bottom:18px;font-size:15px;max-width:820px}
.produit{display:grid;grid-template-columns:1fr 1fr;gap:48px;align-items:center}
.produit .badge-prod{display:inline-block;background:rgba(37,99,235,.1);color:var(--bleu-2);
 font-weight:700;font-size:12.5px;letter-spacing:.08em;text-transform:uppercase;padding:6px 12px;border-radius:999px}
@media(max-width:1000px){.produit{grid-template-columns:1fr}}

/* --- finitions --- */
.carte{transition:transform .18s ease,box-shadow .18s ease,border-color .18s ease}
.carte:hover{transform:translateY(-3px);box-shadow:0 16px 40px rgba(15,23,42,.10);border-color:#cbd5e1}
.btn:active{transform:translateY(0)}
.back-top{position:fixed;right:22px;bottom:22px;width:46px;height:46px;border-radius:50%;
 background:var(--navy);color:#fff;border:0;font-size:19px;cursor:pointer;display:none;
 place-items:center;box-shadow:0 10px 24px rgba(15,23,42,.28);z-index:60}
.back-top.visible{display:grid}
.cta-mobile{display:none}
@media(max-width:760px){
 .back-top{bottom:84px}
 .cta-mobile{display:flex;position:fixed;left:0;right:0;bottom:0;z-index:55;background:#fff;
  border-top:1px solid var(--ligne);padding:9px 12px;gap:10px;box-shadow:0 -6px 18px rgba(15,23,42,.08)}
 .cta-mobile a{flex:1;text-align:center;padding:12px 10px;border-radius:10px;font-weight:700;font-size:14.5px}
 .cta-mobile .appel{background:var(--navy);color:#fff}
 .cta-mobile .devis{background:var(--bleu);color:#fff}
 body{padding-bottom:62px}
}
.carte ol,.prose ol{margin:14px 0 0 22px;color:var(--muted)}
.carte ol li,.prose ol li{margin-top:8px}

/* --- diagnostic de parc --- */
.diag{background:#fff;border:1px solid var(--ligne);border-radius:20px;padding:34px;box-shadow:var(--ombre)}
.diag-tete{margin-bottom:22px}
.diag-etape-num{font-size:12.5px;font-weight:700;letter-spacing:.12em;text-transform:uppercase;color:var(--bleu)}
.diag-barre{height:6px;background:#e8eef7;border-radius:999px;margin-top:10px;overflow:hidden}
.diag-barre span{display:block;height:100%;background:var(--bleu);border-radius:999px;transition:width .25s ease}
.diag-bloc h2{font-size:22px;line-height:1.25;margin-bottom:20px}
.diag-choix{display:grid;gap:12px}
.diag-choix button{text-align:left;padding:15px 18px;border:1.5px solid var(--ligne);background:#fff;
 border-radius:12px;font:inherit;font-size:15.5px;cursor:pointer;transition:border-color .15s,background .15s,transform .15s}
.diag-choix button:hover{border-color:var(--bleu);background:#f7faff;transform:translateY(-1px)}
.diag-choix button.choisi{border-color:var(--bleu);background:rgba(37,99,235,.06);font-weight:600}
.diag-score{display:grid;grid-template-columns:84px 1fr;gap:20px;align-items:center;margin-bottom:22px}
.diag-score-rond{width:84px;height:84px;border-radius:50%;display:grid;place-items:center;
 font-size:26px;font-weight:800;color:#fff;background:var(--navy)}
.diag-score-rond.orange{background:#b45309}
.diag-score-rond.rouge{background:#b91c1c}
.diag-score-rond.vert{background:#15803d}
.diag-point{display:flex;gap:12px;padding:14px 0;border-top:1px solid var(--ligne)}
.diag-point .pico{flex:0 0 auto;width:24px;height:24px;border-radius:50%;display:grid;place-items:center;
 font-size:13px;font-weight:800;color:#fff;background:#b45309}
.diag-point.critique .pico{background:#b91c1c}
.diag-point.ok .pico{background:#15803d}
.diag-point strong{display:block;font-size:15.5px;color:var(--txt)}
.diag-point span{font-size:14.5px;color:var(--muted)}
.diag-actions{display:flex;gap:12px;flex-wrap:wrap;margin-top:26px}
@media(max-width:760px){.diag{padding:22px}.diag-score{grid-template-columns:1fr}}
/* ---- blocs visuels repris de l'ancien site ---- */
/* ---- pictogrammes solutions ---- */
.pictos{display:grid;grid-template-columns:repeat(3,1fr);gap:18px;margin-top:26px}
.picto-item{display:flex;gap:14px;align-items:center;background:#fff;border:1px solid var(--ligne);
 border-radius:12px;padding:16px 18px}
.picto-item img{height:38px;width:auto;flex:0 0 auto}
.picto-item b{display:block;font-size:14.5px;color:var(--navy)}
.picto-item span{font-size:13px;color:var(--muted)}
@media(max-width:820px){.pictos{grid-template-columns:1fr}}

/* ---- produits (téléphonie) ---- */
.produits{display:grid;grid-template-columns:repeat(3,1fr);gap:22px;margin-top:34px}
.produit-carte{background:#fff;border:1px solid var(--ligne);border-radius:var(--radius);
 padding:22px 18px;text-align:center;box-shadow:var(--ombre)}
.produit-carte img{height:170px;width:auto;max-width:100%;object-fit:contain;margin:0 auto 14px}
.produit-carte h3{font-size:16px}
.produit-carte p{font-size:13.5px;margin-top:6px}
@media(max-width:900px){.produits{grid-template-columns:1fr 1fr}}
@media(max-width:600px){.produits{grid-template-columns:1fr}}

/* ---- outils espace client ---- */
.outils{display:grid;grid-template-columns:repeat(5,1fr);gap:16px;margin-top:30px}
.outil{background:#fff;border:1px solid var(--ligne);border-radius:12px;padding:18px 14px;text-align:center;
 display:block;transition:transform .18s ease,box-shadow .18s ease}
.outil:hover{transform:translateY(-2px);box-shadow:0 14px 34px rgba(15,23,42,.10)}
.outil img{height:42px;width:auto;margin:0 auto 10px;object-fit:contain}
.outil b{display:block;font-size:13.5px;color:var(--navy)}
.outil span{display:block;font-size:12px;color:var(--muted);margin-top:2px}
@media(max-width:900px){.outils{grid-template-columns:repeat(3,1fr)}}
@media(max-width:560px){.outils{grid-template-columns:1fr 1fr}}

/* ---- illustration de page ---- */
.illus{margin-top:34px;border-radius:18px;overflow:hidden;border:1px solid var(--ligne);background:var(--doux)}
.illus img{width:100%;height:auto;display:block}
.duo{display:grid;grid-template-columns:1fr 1fr;gap:22px;margin-top:34px}
.duo img{width:100%;height:auto;border-radius:16px;border:1px solid var(--ligne);object-fit:cover}
@media(max-width:760px){.duo{grid-template-columns:1fr}}
/* ---- bandeaux logos (surface homogène) ---- */
/* bandeaux de logos : surface visuelle homogène, dernière rangée centrée */
.logos{display:flex;flex-wrap:wrap;justify-content:center;gap:14px;margin-top:34px}
.logos .logo{flex:0 0 calc((100% - 56px)/5);background:#fff;border:1px solid var(--ligne);
 border-radius:12px;height:92px;display:grid;place-items:center;padding:12px 14px;
 transition:transform .18s ease,box-shadow .18s ease}
.logos .logo:hover{transform:translateY(-2px);box-shadow:0 12px 28px rgba(15,23,42,.10)}
.logos .logo img{width:auto;height:auto;max-width:100%;max-height:56px;object-fit:contain}
.logos.clients .logo{flex:0 0 calc((100% - 84px)/7)}
@media(max-width:1000px){.logos .logo{flex:0 0 calc((100% - 42px)/4)}.logos.clients .logo{flex:0 0 calc((100% - 42px)/4)}}
@media(max-width:700px){.logos .logo{flex:0 0 calc((100% - 28px)/3);height:82px;padding:8px}}
@media(max-width:480px){.logos .logo{flex:0 0 calc((100% - 14px)/2)}}