:root{--principal:#7c3aed;--principal-fonce:#5b21b6;--accent:#ff5a5f;--fond:#f7f7fa;--texte:#1a1033;--encre:#1a1033;--gris:#6b6480;--bord:#e6e3ef;--rayon:14px}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;background:var(--fond);color:var(--texte);font:17px/1.6 system-ui,-apple-system,"Segoe UI",Roboto,Arial,sans-serif;padding-bottom:64px}
@media(min-width:760px){body{padding-bottom:0}}
img{max-width:100%;height:auto}
a{color:var(--principal)}
a:focus-visible,button:focus-visible,input:focus-visible,select:focus-visible,textarea:focus-visible{outline:3px solid var(--encre);outline-offset:2px}
.largeur{max-width:1080px;margin:0 auto;padding:0 20px}
.evitement{position:absolute;left:-999px}.evitement:focus{left:12px;top:12px;background:#fff;padding:8px;z-index:10}
.entete{background:#fff;border-bottom:1px solid var(--bord);position:sticky;top:0;z-index:5}
.entete-ligne{display:flex;align-items:center;justify-content:space-between;gap:16px;min-height:72px;flex-wrap:wrap}
.marque img{display:block;width:127px;height:auto}
.entete nav ul{list-style:none;margin:0;padding:0;display:flex;flex-wrap:wrap;gap:4px 18px}
.entete nav a{text-decoration:none;color:var(--texte);font-weight:600;padding:6px 0;border-bottom:3px solid transparent}
.entete nav a[aria-current=page],.entete nav a:hover{border-bottom-color:var(--accent)}
@media(max-width:759px){.entete nav ul{gap:2px 14px;font-size:15px;padding-bottom:8px}}
h1,h2,h3{line-height:1.2;color:var(--texte)}
h1{font-size:clamp(30px,5vw,46px);margin:.2em 0 .4em}
h2{font-size:clamp(24px,3.4vw,32px);margin:0 0 .6em}
.section{padding:56px 0}
.section.claire{background:#fff}
.accroche{padding:64px 0 48px;background:linear-gradient(160deg,#fff 0%,var(--fond) 70%)}
.accroche p.chapeau{font-size:20px;color:var(--gris);max-width:640px}
.bouton{display:inline-block;background:var(--principal);color:#fff;text-decoration:none;font-weight:700;padding:14px 22px;border-radius:999px;border:0;font-size:17px;cursor:pointer}
.bouton:hover{background:var(--principal-fonce)}
.bouton.second{background:transparent;color:var(--principal);border:2px solid var(--principal)}
.boutons{display:flex;flex-wrap:wrap;gap:12px;margin-top:20px}
.grille{display:grid;gap:20px;grid-template-columns:repeat(auto-fit,minmax(240px,1fr))}
.carte{background:#fff;border:1px solid var(--bord);border-radius:var(--rayon);padding:24px}
.carte h3{margin-top:0}
.carte .pastille{display:inline-block;width:36px;height:6px;background:var(--accent);border-radius:3px;margin-bottom:12px}
.realisation{display:grid;gap:24px;align-items:center;grid-template-columns:1fr}
@media(min-width:760px){.realisation{grid-template-columns:1fr 1fr}}
.realisation figure{margin:0}
.realisation img{border-radius:var(--rayon);border:1px solid var(--bord);background:#fff}
.telephone{max-width:260px;margin:auto;display:block}
.etapes{counter-reset:e;list-style:none;padding:0;display:grid;gap:14px}
.etapes li{counter-increment:e;background:#fff;border:1px solid var(--bord);border-radius:var(--rayon);padding:18px 18px 18px 64px;position:relative}
.etapes li::before{content:counter(e);position:absolute;left:18px;top:16px;width:32px;height:32px;border-radius:50%;background:var(--principal);color:#fff;font-weight:800;display:grid;place-items:center}
.etapes h2{font-size:20px;margin:0 0 4px}
.liste-coches{padding-left:0;list-style:none}
.liste-coches li{padding-left:28px;position:relative;margin:6px 0}
.liste-coches li::before{content:"✓";position:absolute;left:0;color:var(--principal);font-weight:800}
details{background:#fff;border:1px solid var(--bord);border-radius:10px;padding:14px 18px;margin:10px 0}
summary{font-weight:700;cursor:pointer}
form.devis{display:grid;gap:16px;max-width:640px}
form.devis label{font-weight:600;display:block;margin-bottom:4px}
form.devis input[type=text],form.devis input[type=email],form.devis input[type=tel],form.devis select,form.devis textarea{width:100%;font:inherit;padding:12px;border:1px solid #8f89a3;border-radius:10px;background:#fff}
form.devis textarea{min-height:160px;resize:vertical}
.case{display:flex;gap:10px;align-items:flex-start;font-weight:400!important}
.case input{margin-top:6px;width:20px;height:20px}
.piege{position:absolute;left:-5000px;width:1px;height:1px;overflow:hidden}
.aide{font-size:14px;color:var(--gris)}
.retour{padding:14px 16px;border-radius:10px;display:none}
.retour.ok{display:block;background:#f1ebfe;border:1px solid var(--principal)}
.retour.erreur{display:block;background:#fdecea;border:1px solid #c0392b}
.contact-direct{display:grid;gap:12px;grid-template-columns:repeat(auto-fit,minmax(200px,1fr));margin-bottom:28px}
.pied{background:var(--encre);color:#fff;padding:36px 0;margin-top:40px;font-size:15px}
.pied a{color:#fff}
.pied-grille{display:grid;gap:20px;grid-template-columns:repeat(auto-fit,minmax(220px,1fr))}
.barre-mobile{position:fixed;left:0;right:0;bottom:0;display:grid;grid-template-columns:repeat(3,1fr);background:var(--principal);z-index:6}
.barre-mobile a{color:#fff;text-align:center;padding:16px 0;font-weight:700;text-decoration:none;border-right:1px solid rgba(255,255,255,.2)}
.barre-mobile a:last-child{background:var(--accent);color:var(--encre)}
@media(min-width:760px){.barre-mobile{display:none}}