/* =====================================================================
   SCRT — entreprise de bâtiment 06 Nice  (thème sombre & doré)
   ===================================================================== */
:root{
  --gold:#ddc274;
  --gold-deep:#c2a356;
  --ink:#16150f;
  --panel:#1d1c17;
  --panel-2:#232219;
  --line:#36342a;
  --cream:#f3efe6;
  --text:#e9e4d8;
  --muted:#b3ab98;
  --rho:1180px;
  --serif:'Cormorant Garamond',Georgia,serif;
  --body:'Noto Serif',Georgia,serif;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;font-family:var(--body);background:#16150f;color:var(--text);
  line-height:1.7;font-size:17px;-webkit-font-smoothing:antialiased}
/* Image de fond fixe sur tout le site (comme l'original) */
body::before{content:"";position:fixed;inset:0;z-index:-2;
  background:#16150f url('../images/entreprise-de-batiment-06-nice/entreprise-de-batiment-06-nice-cannes-antibes-7.jpg') center center/cover no-repeat}
body::after{content:"";position:fixed;inset:0;z-index:-1;
  background:linear-gradient(180deg,rgba(15,14,10,.50) 0%,rgba(15,14,10,.82) 60%,rgba(15,14,10,.92) 100%)}
img{max-width:100%;height:auto;display:block}
a{color:var(--gold);text-decoration:none}
a:hover{text-decoration:underline}
.wrap{max-width:var(--rho);margin:0 auto;padding:0 24px}
.narrow{max-width:820px}
.center{text-align:center}
.muted{color:var(--muted)}
.small{font-size:.9rem}
.skip{position:absolute;left:-999px;top:0;background:var(--gold);color:#000;padding:.6rem 1rem;z-index:1000}
.skip:focus{left:8px;top:8px}

h1,h2,h3{font-family:var(--serif);font-weight:600;line-height:1.12;letter-spacing:.01em}
h1{font-size:clamp(2.3rem,5vw,4rem);margin:.15em 0;color:#fff}
h2{font-size:clamp(1.8rem,3.6vw,2.7rem);margin:0 0 .5em;color:var(--gold)}
h3{font-size:1.35rem;margin:0 0 .35em;color:#fff;font-weight:500}
p{margin:0 0 1.1em}
.eyebrow{font-family:var(--body);text-transform:uppercase;letter-spacing:.26em;
  font-size:.72rem;font-weight:600;color:var(--gold);margin:0 0 .5em}
.quoted{font-family:var(--serif);font-style:italic;font-size:1.6rem;color:var(--gold);line-height:1.3;margin-bottom:1rem}

/* ---------- Buttons ---------- */
.btn{display:inline-block;font-family:var(--body);font-weight:600;font-size:.9rem;letter-spacing:.05em;
  text-transform:uppercase;padding:.85rem 1.9rem;border:1.5px solid transparent;cursor:pointer;transition:.2s}
.btn:hover{text-decoration:none}
.btn-gold{background:var(--gold);color:#1a1810}
.btn-gold:hover{background:var(--gold-deep);color:#000}
.btn-ghost{background:transparent;color:#fff;border-color:rgba(255,255,255,.55)}
.btn-ghost:hover{border-color:var(--gold);color:var(--gold)}

/* ---------- Header ---------- */
.site-header{position:sticky;top:0;z-index:200;background:rgba(18,17,12,.96);
  backdrop-filter:blur(6px);border-bottom:1px solid var(--line)}
.header-inner{display:flex;align-items:center;justify-content:space-between;gap:1rem;padding:14px 24px}
.logo{display:flex;flex-direction:column;gap:4px;text-decoration:none;line-height:1}
.logo:hover{text-decoration:none}
.logo img{height:auto}
.logo-sub{font-size:.62rem;letter-spacing:.18em;text-transform:uppercase;color:var(--muted)}
.nav ul{display:flex;gap:.3rem;list-style:none;margin:0;padding:0}
.nav a{display:block;padding:.55rem .95rem;color:var(--text);font-size:.82rem;font-weight:600;
  text-transform:uppercase;letter-spacing:.1em;border-bottom:2px solid transparent}
.nav a:hover{color:var(--gold);text-decoration:none}
.nav li.active a{color:var(--gold);border-color:var(--gold)}
.nav-toggle{display:none;background:none;border:0;width:44px;height:40px;cursor:pointer;padding:9px 8px}
.nav-toggle span{display:block;height:2px;background:var(--gold);margin:5px 0;transition:.25s}
.nav-toggle[aria-expanded="true"] span:nth-child(1){transform:translateY(7px) rotate(45deg)}
.nav-toggle[aria-expanded="true"] span:nth-child(2){opacity:0}
.nav-toggle[aria-expanded="true"] span:nth-child(3){transform:translateY(-7px) rotate(-45deg)}

/* ---------- Hero ---------- */
.hero{position:relative;min-height:clamp(480px,84vh,780px);display:flex;align-items:flex-end;color:#fff}
.hero-overlay{position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(15,14,10,0) 28%,rgba(15,14,10,.55) 68%,rgba(15,14,10,.9) 100%)}
.hero-inner{position:relative;z-index:2;padding:0 24px 4.5rem;max-width:var(--rho);margin:0 auto;width:100%}
.hero-eyebrow{text-transform:uppercase;letter-spacing:.26em;font-size:.78rem;font-weight:600;color:var(--gold)}
.hero h1{max-width:18ch;margin:.25em 0 .4em;text-shadow:0 2px 24px rgba(0,0,0,.5)}
.hero-lead{max-width:54ch;color:var(--cream);font-size:1.12rem}
.hero-actions{display:flex;gap:.9rem;flex-wrap:wrap;margin-top:1.6rem}

/* ---------- Page banner ---------- */
.page-banner{background:rgba(20,19,14,.62);-webkit-backdrop-filter:blur(2px);backdrop-filter:blur(2px);border-bottom:1px solid var(--line);text-align:center;padding:3.6rem 0 3.2rem}
.page-banner h1{color:var(--gold)}

/* ---------- Sections ---------- */
.section{padding:4.5rem 0}
.section.alt{background:rgba(20,19,14,.80)}
.intro-band{background:rgba(20,19,14,.72);border-top:1px solid var(--line);border-bottom:1px solid var(--line)}

/* ---------- Services grid ---------- */
.svc-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:1.3rem;margin-top:2rem}
.svc-card{background:rgba(31,30,23,.90);border:1px solid var(--line);border-top:3px solid var(--gold);
  padding:1.5rem 1.5rem;transition:.2s}
.svc-card:hover{transform:translateY(-3px);border-top-color:#fff;box-shadow:0 14px 30px rgba(0,0,0,.4)}
.svc-card h3{color:var(--gold);font-family:var(--serif);font-size:1.4rem}
.svc-card p{margin:0;color:var(--muted);font-size:.95rem}

/* ---------- Guarantees ---------- */
.guarantees{background:transparent}
.guar-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:2rem}
.guar-item{text-align:center;background:rgba(29,28,23,.88);border:1px solid var(--line);padding:2rem 1.5rem}
.guar-item img{height:90px;width:auto;margin:0 auto 1rem;object-fit:contain}
.guar-item p{margin:0;color:var(--muted);font-size:.95rem}

/* ---------- CTA band ---------- */
.cta-band{background:linear-gradient(120deg,rgba(36,31,18,.90),rgba(26,23,16,.90));border-top:1px solid var(--line);
  border-bottom:1px solid var(--line);padding:4rem 0}
.cta-band h2{color:#fff}
.cta-band p{color:var(--muted);margin-bottom:1.6rem}

/* ---------- Feature ---------- */
.feature-grid{display:grid;grid-template-columns:1.1fr .9fr;gap:3rem;align-items:center}
.feature-img img{border:1px solid var(--line);box-shadow:0 16px 40px rgba(0,0,0,.5)}

/* ---------- Gallery + lightbox ---------- */
.gallery{display:grid;grid-template-columns:repeat(4,1fr);gap:1rem;margin-top:1.6rem}
.gal-item{display:block;overflow:hidden;border:1px solid var(--line);background:var(--panel)}
.gal-item img{aspect-ratio:4/3;object-fit:cover;width:100%;transition:transform .5s,opacity .3s;opacity:.92}
.gal-item:hover img{transform:scale(1.07);opacity:1}
.lightbox{cursor:zoom-in}

.lb-overlay{position:fixed;inset:0;z-index:1000;background:rgba(10,9,6,.95);
  display:none;align-items:center;justify-content:center;flex-direction:column}
.lb-overlay.open{display:flex}
.lb-overlay img{max-width:90vw;max-height:80vh;border:1px solid var(--line);box-shadow:0 10px 50px rgba(0,0,0,.6)}
.lb-cap{color:var(--gold);margin-top:1rem;font-family:var(--serif);font-style:italic;font-size:1.2rem}
.lb-close,.lb-prev,.lb-next{position:absolute;background:none;border:0;color:#fff;cursor:pointer;
  font-size:2.4rem;line-height:1;padding:1rem;opacity:.8;transition:.2s;font-family:var(--body)}
.lb-close:hover,.lb-prev:hover,.lb-next:hover{opacity:1;color:var(--gold)}
.lb-close{top:8px;right:14px}
.lb-prev{left:8px;top:50%;transform:translateY(-50%)}
.lb-next{right:8px;top:50%;transform:translateY(-50%)}

/* ---------- Contact ---------- */
.contact-grid{display:grid;grid-template-columns:1fr 1.2fr;gap:3rem;align-items:start}
.contact-info{background:rgba(20,19,14,.55);padding:1.6rem 1.8rem;border:1px solid var(--line)}
.contact-info hr{border:0;border-top:1px solid var(--line);margin:1.4rem 0}
.contact-form-wrap{background:rgba(29,28,23,.90);border:1px solid var(--line);padding:2rem}
.field{margin-bottom:1.1rem}
.field label{display:block;font-weight:600;font-size:.85rem;margin-bottom:.35rem;color:var(--cream)}
.field input,.field textarea{width:100%;padding:.7rem .85rem;border:1px solid var(--line);
  background:var(--panel-2);color:var(--text);font-family:inherit;font-size:1rem}
.field input:focus,.field textarea:focus{outline:2px solid var(--gold);border-color:var(--gold)}
.form-feedback{margin-top:.9rem;font-weight:600}
.form-feedback.ok{color:#7ed08a}
.form-feedback.err{color:#e88}
.map-section iframe{display:block}

/* ---------- Legal ---------- */
.section.legal{background:rgba(16,15,10,.86)}
.legal h2{font-size:1.6rem;margin-top:1.8rem;color:var(--gold)}

/* ---------- Footer ---------- */
.site-footer{background:#100f0a;border-top:1px solid var(--line)}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr;gap:2.5rem;padding:3.4rem 24px 2.6rem}
.footer-col h2{font-size:1.3rem;color:var(--gold);margin-bottom:1rem;
  padding-bottom:.5rem;border-bottom:1px solid var(--line)}
.footer-col p{font-size:.95rem;color:var(--muted)}
.footer-col a{color:var(--cream)}
.plain{list-style:none;padding:0;margin:0}
.plain li{padding:.25rem 0;color:var(--muted);font-size:.95rem}
.footer-bottom{background:#0b0a07;border-top:1px solid var(--line)}
.footer-bottom-inner{display:flex;flex-direction:column;gap:.9rem;align-items:center;text-align:center;padding:1.5rem 24px}
.footer-nav{display:flex;flex-wrap:wrap;gap:.4rem 1.4rem;justify-content:center}
.footer-nav a{color:var(--muted);font-size:.84rem}
.footer-nav a:hover{color:var(--gold)}
.copyright{font-size:.78rem;color:#6f6a5b;margin:0}

/* ---------- Floating call ---------- */
.call-float{position:fixed;right:16px;bottom:16px;z-index:150;background:var(--gold);color:#1a1810;
  font-weight:600;font-size:.85rem;text-transform:uppercase;letter-spacing:.05em;
  padding:.7rem 1.1rem;box-shadow:0 8px 22px rgba(0,0,0,.5)}
.call-float:hover{background:var(--gold-deep);color:#000;text-decoration:none}

/* ---------- Responsive ---------- */
@media (max-width:980px){
  .feature-grid,.contact-grid{grid-template-columns:1fr;gap:2rem}
  .svc-grid{grid-template-columns:repeat(2,1fr)}
  .gallery{grid-template-columns:repeat(3,1fr)}
  .guar-grid{grid-template-columns:1fr;gap:1.2rem}
}
@media (max-width:760px){
  .nav-toggle{display:block}
  .nav{position:absolute;left:0;right:0;top:100%;background:#15140e;border-top:1px solid var(--line);
    max-height:0;overflow:hidden;transition:max-height .3s ease}
  .nav.open{max-height:420px}
  .nav ul{flex-direction:column;padding:.4rem 0}
  .nav a{padding:.85rem 24px;border-bottom:1px solid var(--line)}
  .nav li.active a{border-color:var(--line)}
  .header-inner{position:relative}
  .gallery{grid-template-columns:repeat(2,1fr)}
}
@media (max-width:460px){
  .svc-grid,.gallery{grid-template-columns:1fr}
}
@media (prefers-reduced-motion:reduce){*{scroll-behavior:auto}}