/* Style commun des pages SARL BATIBO (hors index.html) */
:root{
  --bg:#F8F7F3; --bg-alt:#F0EEE7; --panel:#FFFFFF;
  --ink:#242119; --ink-soft:#5F594C; --ink-faint:#8B8574;
  --line:#E3DED2; --line-strong:#CFC8B7;
  --slate:#123B7A; --slate-deep:#0B2450; --accent:#8A6D00; --yellow:#FFD100;
  --maxw:1180px;
}
*,*::before,*::after{box-sizing:border-box;}
html{scroll-behavior:smooth;}
@media (prefers-reduced-motion: reduce){ html{scroll-behavior:auto;} }
body{margin:0; background:var(--bg); color:var(--ink); font-family:'Work Sans', system-ui, sans-serif; font-size:17px; line-height:1.6; -webkit-font-smoothing:antialiased;}
h1,h2,h3{font-family:'Big Shoulders', 'Arial Narrow', sans-serif; font-weight:800; text-transform:uppercase; letter-spacing:0.01em; line-height:1; margin:0; color:var(--ink);}
p{margin:0 0 1em;}
a{color:var(--slate);}
img{max-width:100%; height:auto; display:block;}
:focus-visible{outline:2px solid var(--slate); outline-offset:3px;}
.wrap{max-width:var(--maxw); margin:0 auto; padding:0 24px;}
.prose{max-width:68ch;}

/* En-tête */
.site-header{position:sticky; top:0; z-index:10; background:rgba(248,247,243,0.94); border-bottom:1px solid var(--line); backdrop-filter:blur(8px);}
.header-inner{display:flex; align-items:center; justify-content:space-between; gap:16px; min-height:68px; flex-wrap:wrap; padding-top:8px; padding-bottom:8px;}
.logo{display:flex; align-items:center; gap:10px; text-decoration:none; color:var(--ink);}
.logo svg{width:40px; height:22px;}
.logo-text{font-family:'Big Shoulders', sans-serif; font-weight:900; font-size:1.4rem; line-height:1;}
.logo-text span{color:var(--accent);}
.site-nav{display:flex; gap:18px; flex-wrap:wrap; font-size:0.92rem;}
.site-nav a{color:var(--ink-soft); text-decoration:none;}
.site-nav a:hover, .site-nav a[aria-current="page"]{color:var(--ink); text-decoration:underline; text-underline-offset:5px; text-decoration-color:var(--yellow); text-decoration-thickness:3px;}

/* Boutons */
.btn{display:inline-flex; align-items:center; gap:8px; padding:13px 22px; border-radius:4px; font-weight:600; font-size:0.9rem; text-decoration:none; border:1px solid transparent;}
.btn-primary{background:var(--slate); color:#fff;}
.btn-primary:hover{background:var(--slate-deep);}
.btn-ghost{border-color:var(--line-strong); color:var(--ink);}
.btn-ghost:hover{border-color:var(--ink);}

/* Fil d'Ariane + en-tête de page */
.crumbs{font-size:0.85rem; color:var(--ink-faint); padding:22px 0 0;}
.crumbs a{color:var(--ink-soft);}
.page-hero{display:grid; grid-template-columns:1.1fr 0.9fr; gap:48px; align-items:end; padding:28px 0 56px; border-bottom:1px solid var(--line);}
.page-hero h1{font-size:clamp(2.4rem, 6vw, 4.4rem);}
.page-hero .lead{font-size:1.15rem; color:var(--ink-soft); margin-top:20px; max-width:52ch;}
.page-hero .actions{display:flex; gap:12px; flex-wrap:wrap; margin-top:28px;}
.page-hero figure{margin:0;}
.page-hero img{border-radius:10px; aspect-ratio:4/5; object-fit:cover; width:100%;}
@media (max-width:820px){ .page-hero{grid-template-columns:1fr; gap:28px;} .page-hero img{aspect-ratio:4/3;} }

/* Sections */
section.block{padding:56px 0; border-bottom:1px solid var(--line);}
section.block h2{font-size:clamp(1.8rem, 4vw, 2.6rem); margin-bottom:22px;}
section.block h3{font-size:1.35rem; margin:0 0 8px;}
.two-col{display:grid; grid-template-columns:1fr 1fr; gap:48px; align-items:start;}
@media (max-width:820px){ .two-col{grid-template-columns:1fr; gap:28px;} }

/* Étapes du chantier (vraie séquence) */
.steps{list-style:none; margin:0; padding:0; counter-reset:step; display:grid; gap:0;}
.steps li{counter-increment:step; display:grid; grid-template-columns:56px 1fr; gap:16px; padding:20px 0; border-top:1px solid var(--line);}
.steps li::before{content:counter(step); font-family:'Big Shoulders', sans-serif; font-weight:900; font-size:2.2rem; line-height:1; color:var(--slate);}
.steps p{margin:0; color:var(--ink-soft);}

/* Liste simple */
.ticks{list-style:none; padding:0; margin:0 0 1em;}
.ticks li{padding:8px 0 8px 26px; position:relative; border-bottom:1px solid var(--line);}
.ticks li::before{content:''; position:absolute; left:0; top:17px; width:12px; height:6px; background:var(--yellow);}

/* Galerie de réalisations */
.gallery{display:grid; grid-template-columns:repeat(auto-fill, minmax(300px, 1fr)); gap:28px;}
.gallery figure{margin:0; background:var(--panel); border:1px solid var(--line); border-radius:10px; overflow:hidden;}
.gallery img{width:100%; aspect-ratio:4/3; object-fit:cover;}
.gallery figcaption{padding:14px 16px 16px;}
.gallery figcaption strong{display:block; font-size:1rem;}
.gallery figcaption span{font-size:0.88rem; color:var(--ink-soft);}
.gallery .wide{grid-column:1 / -1;}
.gallery .wide img{aspect-ratio:21/8;}
@media (max-width:640px){ .gallery .wide img{aspect-ratio:4/3;} }

/* FAQ */
details{border-top:1px solid var(--line); padding:18px 0;}
details:last-of-type{border-bottom:1px solid var(--line);}
summary{cursor:pointer; font-weight:600; font-size:1.05rem;}
details p{margin:12px 0 0; color:var(--ink-soft); max-width:68ch;}

/* Bandeau devis */
.cta-band{background:var(--slate); color:#fff; border-radius:10px; padding:40px; margin:56px 0; display:flex; justify-content:space-between; align-items:center; gap:24px; flex-wrap:wrap;}
.cta-band h2{color:#fff; font-size:clamp(1.6rem, 3.5vw, 2.3rem); margin:0 0 8px;}
.cta-band p{margin:0; color:#D7DEEA;}
.cta-band .btn{background:var(--yellow); color:var(--ink);}
.cta-band .btn:hover{background:#fff;}

/* Pied de page */
footer{padding:40px 0 28px; border-top:1px solid var(--line); background:var(--bg-alt); font-size:0.88rem; color:var(--ink-soft);}
.footer-grid{display:flex; justify-content:space-between; gap:24px; flex-wrap:wrap;}
.footer-nav{display:flex; gap:18px; flex-wrap:wrap;}
.footer-nav a{color:var(--ink-soft); text-decoration:none;}
.footer-nav a:hover{color:var(--ink); text-decoration:underline;}
.footer-bottom{margin-top:24px; padding-top:16px; border-top:1px solid var(--line); display:flex; justify-content:space-between; flex-wrap:wrap; gap:8px; color:var(--ink-faint); font-size:0.8rem;}