/* ===== Instant Chauffage & Climatisation — feuille de style commune (pages SEO) ===== */
:root{
  --bg:#faf6f1;--bg2:#f3ede4;--card:#fff;--surface:#f8f4ee;
  --burg:#7a2838;--burg-s:#944050;--burg-p:rgba(122,40,56,.06);--burg-g:rgba(122,40,56,.12);
  --terra:#b86944;--gold:#b8953e;--gold-s:#d4b15e;
  --cream:#e8dfd3;--text:#3a2e2a;--soft:#7a6e68;--faint:#a99e97;--white:#fffcf8;
  --bdr-s:rgba(0,0,0,.06);--ok:#5a8f6a;
  --sh:0 2px 20px rgba(58,46,42,.06);--sh2:0 4px 30px rgba(58,46,42,.08);--sh3:0 8px 40px rgba(58,46,42,.1);
  --r:12px;--rl:20px;
}
*{margin:0;padding:0;box-sizing:border-box}
body{font-family:'Outfit',sans-serif;background:var(--bg);color:var(--text);-webkit-font-smoothing:antialiased;line-height:1.6}
h1,h2,h3{font-family:'DM Serif Display',serif;font-weight:400;color:var(--text)}
a{text-decoration:none;color:inherit}
img{max-width:100%;display:block}
.container{max-width:1000px;margin:0 auto;padding:0 24px}

/* NAV */
nav{position:sticky;top:0;z-index:100;background:rgba(250,246,241,.94);backdrop-filter:blur(12px);border-bottom:1px solid var(--bdr-s)}
.nav-inner{max-width:1000px;margin:0 auto;padding:0 24px;display:flex;align-items:center;justify-content:space-between;height:74px}
.nav-logo{font-family:'DM Serif Display',serif;font-size:19px;color:var(--burg);display:flex;align-items:center}
.nav-logo img{height:56px;width:auto;display:block}
.nav-links{display:flex;align-items:center;gap:22px}
.nav-links a{font-size:14px;font-weight:500;color:var(--soft);transition:color .2s}
.nav-links a:hover{color:var(--burg)}
.nav-tel{font-weight:600;color:var(--burg)!important}
.nav-cta{background:var(--burg);color:#fff!important;padding:10px 20px;border-radius:50px;font-size:14px;font-weight:600;transition:all .2s}
.nav-cta:hover{background:var(--burg-s)}
@media(max-width:760px){.nav-links a:not(.nav-tel):not(.nav-cta){display:none}}

/* FIL D'ARIANE */
.breadcrumb{font-size:12px;color:var(--faint);padding:16px 0 0}
.breadcrumb a{color:var(--soft)}
.breadcrumb a:hover{color:var(--burg)}

/* HERO PAGE */
.page-hero{padding:40px 0 36px;border-bottom:1px solid var(--bdr-s)}
.page-hero h1{font-size:clamp(28px,4.5vw,42px);line-height:1.15;margin-bottom:14px}
.page-hero h1 em{font-style:normal;color:var(--burg)}
.page-hero .lead{font-size:17px;color:var(--soft);max-width:680px;font-weight:300}
.page-hero .hero-btns{display:flex;gap:12px;flex-wrap:wrap;margin-top:22px}
.page-hero .hero-grid{display:grid;grid-template-columns:1.25fr .75fr;gap:36px;align-items:center}
@media(max-width:760px){.page-hero .hero-grid{grid-template-columns:1fr}.hero-visual{display:none}}
.hero-visual{aspect-ratio:4/3;border-radius:var(--rl);background:linear-gradient(150deg,#7a2838,#b86944);box-shadow:var(--sh2);position:relative;overflow:hidden}
.hero-visual img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;object-position:center top;display:block}
.hero-visual .hv-badge{position:absolute;left:14px;bottom:14px;z-index:2;font-size:12px;font-weight:600;letter-spacing:.3px;color:#fff;background:rgba(26,18,16,.55);border:1px solid rgba(255,255,255,.25);padding:7px 14px;border-radius:50px;backdrop-filter:blur(4px)}
/* Variante visuel neutre (pages sans photo) */
.hero-visual.neutral{display:flex;flex-direction:column;align-items:center;justify-content:center;gap:14px}
.hero-visual.neutral::before{content:'';position:absolute;inset:0;background:radial-gradient(circle at 72% 28%,rgba(255,255,255,.16),transparent 60%)}
.hero-visual.neutral .hv-icon{font-size:72px;line-height:1;position:relative;z-index:1;filter:drop-shadow(0 4px 14px rgba(0,0,0,.25))}
.hero-visual.neutral .hv-badge{position:relative;left:auto;bottom:auto}

/* BOUTONS */
.btn-primary{background:var(--burg);color:var(--white);padding:14px 28px;border-radius:50px;font-size:15px;font-weight:600;transition:all .25s;display:inline-flex;align-items:center;gap:8px}
.btn-primary:hover{background:var(--burg-s);transform:translateY(-2px);box-shadow:0 6px 24px rgba(122,40,56,.25)}
.btn-outline{border:1.5px solid var(--burg);color:var(--burg);padding:13px 26px;border-radius:50px;font-size:14px;font-weight:600;transition:all .25s;display:inline-flex;align-items:center;gap:8px}
.btn-outline:hover{background:var(--burg-p)}

/* CONTENU / PROSE */
.prose{padding:44px 0}
.prose h2{font-size:clamp(22px,3.2vw,30px);margin:36px 0 14px;color:var(--burg)}
.prose h2:first-child{margin-top:0}
.prose h3{font-family:'Outfit',sans-serif;font-size:17px;font-weight:600;color:var(--text);margin:22px 0 8px}
.prose p{font-size:16px;color:var(--soft);margin-bottom:14px}
.prose strong{color:var(--text)}
.prose ul{list-style:none;margin:10px 0 18px}
.prose ul li{font-size:16px;color:var(--soft);padding:6px 0 6px 28px;position:relative}
.prose ul li::before{content:'✓';position:absolute;left:0;top:6px;width:20px;height:20px;border-radius:50%;background:var(--burg-p);color:var(--burg);font-size:11px;font-weight:700;display:flex;align-items:center;justify-content:center}
.prose a{color:var(--burg);font-weight:500;text-decoration:underline;text-underline-offset:2px}
.prose a.btn-primary{color:var(--white);text-decoration:none;margin-top:6px}
/* Image flottante (ex. avant/après) : à droite avec texte autour, pleine largeur sur mobile */
.aa-figure{float:right;width:36%;max-width:280px;margin:4px 0 18px 28px;border-radius:var(--rl);box-shadow:var(--sh)}
@media(max-width:600px){.aa-figure{float:none;width:100%;max-width:340px;margin:14px auto;display:block}}

/* CARTES */
.cards{display:grid;grid-template-columns:repeat(3,1fr);gap:16px;margin:18px 0}
@media(max-width:760px){.cards{grid-template-columns:1fr}}
.card{background:var(--card);border:1px solid var(--bdr-s);border-radius:var(--rl);padding:24px 22px;box-shadow:var(--sh)}
.card .ic{width:46px;height:46px;border-radius:12px;background:var(--burg-p);display:flex;align-items:center;justify-content:center;font-size:22px;margin-bottom:12px}
.card h3{margin:0 0 6px}
.card p{font-size:14px;color:var(--soft);margin:0}

/* BANDEAU CTA */
.cta-band{background:var(--burg);color:var(--white);border-radius:var(--rl);padding:40px 32px;text-align:center;margin:36px 0}
.cta-band h2{color:var(--white);font-size:clamp(22px,3.2vw,30px);margin-bottom:10px}
.cta-band p{opacity:.85;margin-bottom:22px;font-size:16px}
.cta-band .btn-primary{background:var(--gold-s);color:#3a2e1a}
.cta-band .btn-primary:hover{background:var(--gold)}
.cta-band .btn-light{border:1.5px solid rgba(255,255,255,.4);color:#fff;padding:13px 26px;border-radius:50px;font-weight:600;display:inline-flex;align-items:center;gap:8px;transition:all .2s}
.cta-band .btn-light:hover{background:rgba(255,255,255,.1)}
.cta-band .cta-btns{display:flex;gap:12px;justify-content:center;flex-wrap:wrap}

/* LIENS CONNEXES */
.related{padding:8px 0 44px}
.related h2{font-size:22px;color:var(--burg);margin-bottom:16px}
.related-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:12px}
@media(max-width:760px){.related-grid{grid-template-columns:1fr}}
.related-grid a{background:var(--surface);border:1px solid var(--cream);border-radius:var(--r);padding:16px 18px;font-size:14px;font-weight:600;color:var(--text);transition:all .2s;display:block}
.related-grid a:hover{border-color:var(--burg);color:var(--burg);transform:translateY(-2px)}
.related-grid a span{display:block;font-weight:400;font-size:12px;color:var(--faint);margin-top:3px}

/* FOOTER */
footer{background:var(--text);color:rgba(255,255,255,.6);padding:40px 0 24px;margin-top:20px}
footer .fcols{display:grid;grid-template-columns:1.4fr 1fr 1fr;gap:28px;margin-bottom:28px}
@media(max-width:600px){footer .fcols{grid-template-columns:1fr}}
.fbrand{font-family:'DM Serif Display',serif;font-size:19px;color:#fff;margin-bottom:8px}
footer h4{font-size:12px;text-transform:uppercase;letter-spacing:1.5px;color:rgba(255,255,255,.4);margin-bottom:12px}
footer a{color:rgba(255,255,255,.6);font-size:14px;display:block;margin-bottom:7px;transition:color .2s}
footer a:hover{color:#fff}
.fbottom{border-top:1px solid rgba(255,255,255,.08);padding-top:18px;text-align:center;font-size:11px}
.fbottom a{display:inline;color:rgba(255,255,255,.5)}