/* Batiassist — pages publiques de présentation */
:root{--ink:#1f2326;--ink2:#4a4f53;--mute:#5f6368;--bg:#f5f1ea;--bg2:#fbf9f5;--line:#e3ddd2;--accent:#b4502a;--accent2:#d2622f;--blue:#2f5d7c;--light:#f5f1ea}
*{box-sizing:border-box}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{margin:0;background:var(--bg);color:var(--ink);font:18px/1.6 "Source Sans 3",system-ui,-apple-system,"Segoe UI",Roboto,sans-serif}
img{max-width:100%;height:auto;display:block}
a{color:var(--accent)}
h1,h2,h3{font-family:Archivo,system-ui,sans-serif;line-height:1.12;margin:0;letter-spacing:-.01em}
h1{font-size:clamp(34px,5.4vw,62px);font-weight:800}
h2{font-size:clamp(28px,3.6vw,42px);font-weight:800}
h3{font-size:22px;font-weight:700}
p{margin:0}
.wrap{max-width:1180px;margin:0 auto;padding:0 24px}
.kicker{font-family:Archivo,sans-serif;font-weight:700;font-size:14px;letter-spacing:.14em;text-transform:uppercase;color:var(--accent)}
.lead{font-size:clamp(19px,2vw,22px);color:var(--ink2);max-width:760px}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;min-height:52px;padding:0 24px;border-radius:12px;font:700 17px "Source Sans 3",system-ui,sans-serif;text-decoration:none;border:2px solid transparent;cursor:pointer}
.btn.primary{background:var(--accent);color:#fff}
.btn.primary:hover{background:#9c4523}
.btn.ghost{border-color:currentColor;color:inherit}
.btns{display:flex;gap:12px;flex-wrap:wrap}

/* En-tête */
.top{background:var(--ink);color:var(--light);position:sticky;top:0;z-index:50}
.top .wrap{display:flex;align-items:center;gap:20px;min-height:68px}
.brand{display:flex;align-items:center;gap:12px;color:var(--light);text-decoration:none;font:800 19px Archivo,sans-serif;letter-spacing:.12em}
.brand svg{width:36px;height:36px;flex:none}
.top nav{display:flex;gap:22px;margin-left:auto;align-items:center}
.top nav a{color:#e6e1d8;text-decoration:none;font-weight:600;font-size:16px}
.top nav a:hover{color:#fff}
.top .btn{min-height:42px;padding:0 16px;font-size:15px}
.top .btn.ghost{border-color:#6b7074;color:var(--light)}
@media (max-width:860px){.top nav .lien{display:none}.top nav{gap:10px}}

/* Héros */
.hero{background:var(--ink);color:var(--light);padding:72px 0 88px;overflow:hidden}
.hero .wrap{display:grid;grid-template-columns:1.05fr 1fr;gap:56px;align-items:center}
.hero .lead{color:#cfc9bf;margin-top:22px}
.hero .btns{margin-top:32px}
.hero .preuves{margin-top:26px;display:flex;flex-wrap:wrap;gap:8px 20px;color:#b9b3a8;font-size:15px}
.hero .preuves span::before{content:"✓ ";color:#e8804f;font-weight:700}
.capture{border-radius:14px;overflow:hidden;box-shadow:0 30px 70px rgba(0,0,0,.35);background:#fff;border:1px solid rgba(255,255,255,.08)}
@media (max-width:900px){.hero{padding:48px 0 56px}.hero .wrap{grid-template-columns:1fr;gap:36px}}

/* Sections */
section{padding:88px 0}
section.clair{background:var(--bg2)}
.titre{display:flex;flex-direction:column;gap:14px;margin-bottom:44px;max-width:820px}
.grille{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.grille.deux{grid-template-columns:repeat(2,1fr)}
.carte{background:#fff;border:1px solid var(--line);border-radius:16px;padding:28px;display:flex;flex-direction:column;gap:10px}
.carte p{color:var(--ink2);font-size:17px}
.carte .ico{width:44px;height:44px;border-radius:12px;background:#f7e6dc;color:var(--accent);display:flex;align-items:center;justify-content:center}
.carte .ico svg{width:24px;height:24px}
@media (max-width:900px){.grille,.grille.deux{grid-template-columns:1fr}section{padding:60px 0}}

.duo{display:grid;grid-template-columns:1fr 1.15fr;gap:56px;align-items:center}
.duo.inverse{grid-template-columns:1.15fr 1fr}
.duo.inverse .texte{order:2}
.duo .texte{display:flex;flex-direction:column;gap:18px}
.duo ul{margin:0;padding-left:22px;display:flex;flex-direction:column;gap:8px;color:var(--ink2)}
.duo li::marker{color:var(--accent)}
@media (max-width:900px){.duo,.duo.inverse{grid-template-columns:1fr;gap:28px}.duo.inverse .texte{order:0}}
.telephones{display:flex;gap:18px;justify-content:center}
.telephones img{width:46%;max-width:260px;border-radius:26px;border:6px solid var(--ink);box-shadow:0 20px 50px rgba(31,35,38,.18)}

.etapes{counter-reset:e;display:grid;grid-template-columns:repeat(4,1fr);gap:18px;list-style:none;padding:0;margin:0}
.etapes li{counter-increment:e;background:#fff;border:1px solid var(--line);border-top:5px solid var(--accent);border-radius:14px;padding:24px;display:flex;flex-direction:column;gap:8px}
.etapes li::before{content:counter(e);font:800 34px Archivo,sans-serif;color:var(--accent)}
.etapes p{color:var(--ink2);font-size:16px}
@media (max-width:900px){.etapes{grid-template-columns:1fr 1fr}}
@media (max-width:560px){.etapes{grid-template-columns:1fr}}

.sombre{background:var(--ink);color:var(--light)}
.sombre .lead,.sombre .carte p{color:#cfc9bf}
.sombre .carte{background:#2a2f33;border-color:#3a4045}
.sombre .carte .ico{background:#3a2a22;color:#e8804f}

/* FAQ */
.faq{max-width:860px;display:flex;flex-direction:column;gap:12px}
.faq details{background:#fff;border:1px solid var(--line);border-radius:14px;padding:0 24px}
.faq summary{cursor:pointer;font:700 19px Archivo,sans-serif;padding:20px 0;list-style:none;display:flex;justify-content:space-between;gap:16px}
.faq summary::-webkit-details-marker{display:none}
.faq summary::after{content:"+";color:var(--accent);font-size:26px;line-height:1}
.faq details[open] summary::after{content:"–"}
.faq details p{padding:0 0 20px;color:var(--ink2)}

/* Appel final et pied */
.appel{background:#9c4523;color:#fff;text-align:center}
.appel .wrap{display:flex;flex-direction:column;align-items:center;gap:18px}
.appel .lead{color:#fff}
.appel .btn.primary{background:#fff;color:#8a3c1e}
.appel .btn.ghost{color:#fff}
footer{background:var(--ink);color:#b9b3a8;padding:44px 0;font-size:15px}
footer .wrap{display:flex;flex-wrap:wrap;gap:16px 32px;justify-content:space-between}
footer a{color:#e6e1d8;text-decoration:none}
footer nav{display:flex;flex-wrap:wrap;gap:10px 22px}
.fil{font-size:15px;color:#b9b3a8;margin-bottom:16px}
.fil a{color:#e6e1d8}
.top .btn{white-space:nowrap}
@media (max-width:420px){.brand{font-size:16px;gap:9px}.brand svg{width:32px;height:32px}.top .btn{padding:0 12px;font-size:14px}}