/* ============================================================
   Teranga Immobilier — feuille de style du site vitrine
   Palette or/anthracite · titres Cormorant Garamond · corps Inter
   ============================================================ */
:root{
  --primary:#1f2430; --accent:#c8a25a;
  --ink:#1a1d23; --muted:#6b7280; --line:#e8e4db;
  --bg:#ffffff; --bg-soft:#faf8f4; --bg-dark:#171a21;
  --accent-soft:#f3ecdd;
  --radius:16px; --radius-sm:10px;
  --shadow:0 10px 40px rgba(20,22,28,.08);
  --shadow-sm:0 4px 18px rgba(20,22,28,.07);
  --maxw:1180px;
  --serif:"Cormorant Garamond",Georgia,serif;
  --sans:"Inter",system-ui,-apple-system,Segoe UI,Roboto,sans-serif;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;font-family:var(--sans);color:var(--ink);background:var(--bg);line-height:1.65;font-size:16px;-webkit-font-smoothing:antialiased}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
.container{max-width:var(--maxw);margin:0 auto;padding:0 24px}
h1,h2,h3,h4{font-family:var(--serif);font-weight:600;line-height:1.15;color:var(--primary);margin:0 0 .4em}
h1{font-size:clamp(2.4rem,5vw,4rem)}
h2{font-size:clamp(1.9rem,3.4vw,2.8rem)}
h3{font-size:1.35rem}
p{margin:0 0 1rem}
.muted{color:var(--muted)}
.section{padding:84px 0}
.section-soft{background:var(--bg-soft)}
.eyebrow{font-family:var(--sans);text-transform:uppercase;letter-spacing:.18em;font-size:.72rem;font-weight:700;color:var(--accent);margin-bottom:12px}
.section-head{max-width:640px;margin:0 auto 52px;text-align:center}
.section-head.left{margin-left:0;text-align:left}

/* ---------- Boutons ---------- */
.btn{display:inline-flex;align-items:center;gap:.5em;font-family:var(--sans);font-weight:600;font-size:.95rem;
  padding:13px 26px;border-radius:999px;border:1.5px solid transparent;cursor:pointer;transition:.2s;white-space:nowrap}
.btn-accent{background:var(--accent);color:#2a2410;border-color:var(--accent)}
.btn-accent:hover{background:#b8914a;border-color:#b8914a;transform:translateY(-1px)}
.btn-dark{background:var(--primary);color:#fff}
.btn-dark:hover{background:#2b3240;transform:translateY(-1px)}
.btn-ghost{background:transparent;border-color:rgba(255,255,255,.4);color:#fff}
.btn-ghost:hover{background:rgba(255,255,255,.12)}
.btn-outline{background:transparent;border-color:var(--line);color:var(--primary)}
.btn-outline:hover{border-color:var(--accent);color:var(--accent)}

/* ---------- En-tête ---------- */
.site-header{position:sticky;top:0;z-index:50;background:rgba(255,255,255,.9);backdrop-filter:blur(10px);
  border-bottom:1px solid transparent;transition:.25s}
.site-header.scrolled{border-bottom-color:var(--line);box-shadow:var(--shadow-sm)}
.header-inner{display:flex;align-items:center;justify-content:space-between;height:74px}
.brand{display:flex;align-items:center;gap:12px;font-family:var(--serif);font-size:1.35rem;font-weight:700;color:var(--primary)}
.brand-mark{display:grid;place-items:center;width:40px;height:40px;border-radius:11px;background:var(--primary);color:var(--accent);
  font-family:var(--serif);font-weight:700;font-size:1.3rem}
.site-nav{display:flex;align-items:center;gap:30px}
.site-nav a{font-weight:500;font-size:.96rem;color:#39404e;position:relative;padding:6px 0}
.site-nav a:hover{color:var(--primary)}
.site-nav a.active{color:var(--primary)}
.site-nav a.active::after{content:"";position:absolute;left:0;bottom:-2px;width:100%;height:2px;background:var(--accent)}
.site-nav .nav-cta{background:var(--accent-soft);color:#6b5420;padding:9px 16px;border-radius:999px;font-weight:600}
.site-nav .nav-cta:hover{background:var(--accent);color:#2a2410}
.nav-burger{display:none;font-size:1.7rem;cursor:pointer;color:var(--primary)}

/* ---------- Hero ---------- */
.hero{position:relative;min-height:78vh;display:flex;align-items:center;color:#fff;
  background:linear-gradient(120deg,rgba(23,26,33,.92),rgba(23,26,33,.55)),
    url('https://images.unsplash.com/photo-1600585154340-be6161a56a0c?auto=format&fit=crop&w=1920&q=70') center/cover}
.hero-inner{padding:90px 0;max-width:720px}
.hero h1{color:#fff;margin-bottom:.3em}
.hero p{font-size:1.18rem;color:rgba(255,255,255,.85);max-width:560px;margin-bottom:34px}
.hero-actions{display:flex;gap:14px;flex-wrap:wrap}
.hero-trust{display:flex;gap:34px;margin-top:48px;flex-wrap:wrap}
.hero-trust .num{font-family:var(--serif);font-size:2rem;font-weight:700;color:var(--accent);line-height:1}
.hero-trust .lbl{font-size:.85rem;color:rgba(255,255,255,.75)}

/* ---------- Barre de recherche ---------- */
.search-bar{position:relative;margin-top:-46px;z-index:5}
.search-card{background:#fff;border-radius:var(--radius);box-shadow:var(--shadow);padding:18px;
  display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr auto;gap:12px;align-items:end}
.search-card .field{display:flex;flex-direction:column;gap:6px}
.search-card label{font-size:.72rem;font-weight:700;text-transform:uppercase;letter-spacing:.08em;color:var(--muted)}
.search-card select,.search-card input{border:1px solid var(--line);border-radius:10px;padding:11px 12px;font:inherit;font-size:.92rem;color:var(--ink);background:#fff}
.search-card .btn{height:46px}

/* ---------- Grille de biens ---------- */
.biens-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(320px,1fr));gap:28px}
.bien-card{background:#fff;border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;
  display:flex;flex-direction:column;transition:.25s}
.bien-card:hover{transform:translateY(-4px);box-shadow:var(--shadow)}
.bien-media{position:relative;display:block;aspect-ratio:4/3;overflow:hidden;background:var(--bg-soft)}
.bien-media img{width:100%;height:100%;object-fit:cover;transition:.4s}
.bien-card:hover .bien-media img{transform:scale(1.05)}
.bien-media .noimg{width:100%;height:100%;display:grid;place-items:center;color:#cfc9bd;font-size:2.4rem}
.bien-tags{position:absolute;top:12px;left:12px;display:flex;gap:6px}
.bien-tag{background:rgba(23,26,33,.82);color:#fff;font-size:.72rem;font-weight:600;padding:5px 11px;border-radius:999px;backdrop-filter:blur(4px)}
.bien-tag.star{background:var(--accent);color:#2a2410}
.bien-body{padding:20px;display:flex;flex-direction:column;gap:8px;flex:1}
.bien-cat{font-size:.74rem;text-transform:uppercase;letter-spacing:.12em;color:var(--accent);font-weight:700}
.bien-title{font-size:1.25rem;margin:0}
.bien-title a:hover{color:var(--accent)}
.bien-loc{font-size:.9rem;color:var(--muted)}
.bien-specs{display:flex;align-items:center;gap:12px;flex-wrap:wrap;font-size:.86rem;color:#4b5563;margin-top:2px}
.bien-specs .dot{width:3px;height:3px;border-radius:50%;background:#cbd0d8}
.bien-foot{margin-top:auto;padding-top:14px;border-top:1px solid var(--line);display:flex;align-items:center;justify-content:space-between}
.bien-prix{font-family:var(--serif);font-size:1.3rem;font-weight:700;color:var(--primary)}
.bien-prix .per{font-family:var(--sans);font-size:.8rem;font-weight:500;color:var(--muted)}
.bien-link{font-size:.88rem;font-weight:600;color:var(--accent)}
.bien-link:hover{gap:.6em}

/* ---------- Services ---------- */
.services-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(240px,1fr));gap:24px}
.service{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:30px 26px;transition:.25s}
.service:hover{border-color:var(--accent);box-shadow:var(--shadow-sm);transform:translateY(-3px)}
.service .ico{width:54px;height:54px;border-radius:14px;display:grid;place-items:center;background:var(--accent-soft);color:#8a6d2a;font-size:1.5rem;margin-bottom:16px}
.service h3{font-size:1.2rem}
.service p{font-size:.94rem;color:var(--muted);margin:0}

/* ---------- Quartiers ---------- */
.quartiers{display:grid;grid-template-columns:repeat(auto-fit,minmax(200px,1fr));gap:18px}
.quartier{position:relative;aspect-ratio:3/4;border-radius:var(--radius);overflow:hidden;color:#fff;display:flex;align-items:flex-end}
.quartier img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;transition:.4s}
.quartier:hover img{transform:scale(1.06)}
.quartier::after{content:"";position:absolute;inset:0;background:linear-gradient(transparent,rgba(23,26,33,.85))}
.quartier .q-name{position:relative;z-index:2;padding:20px;font-family:var(--serif);font-size:1.4rem;font-weight:600}

/* ---------- Bandeau à propos ---------- */
.about{display:grid;grid-template-columns:1fr 1fr;gap:56px;align-items:center}
.about-media{border-radius:var(--radius);overflow:hidden;aspect-ratio:4/5;box-shadow:var(--shadow)}
.about-media img{width:100%;height:100%;object-fit:cover}
.about ul{list-style:none;padding:0;margin:18px 0 0;display:grid;gap:12px}
.about li{display:flex;gap:12px;align-items:flex-start;font-size:.98rem}
.about li i{color:var(--accent);font-size:1.15rem;margin-top:2px}

/* ---------- CTA ---------- */
.cta{background:var(--bg-dark);color:#fff;border-radius:calc(var(--radius) + 6px);padding:60px;text-align:center}
.cta h2{color:#fff}
.cta p{color:rgba(255,255,255,.8);max-width:520px;margin:0 auto 28px}

/* ---------- Pied de page ---------- */
.site-footer{background:var(--bg-dark);color:rgba(255,255,255,.8);padding:60px 0 24px;margin-top:0}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1.2fr;gap:40px;padding-bottom:40px;border-bottom:1px solid rgba(255,255,255,.12)}
.site-footer .brand{color:#fff;margin-bottom:12px}
.site-footer .brand-mark{background:var(--accent);color:var(--primary)}
.footer-col h4{color:#fff;font-family:var(--sans);font-size:.82rem;text-transform:uppercase;letter-spacing:.1em;margin-bottom:16px}
.footer-col a,.footer-col p{display:block;color:rgba(255,255,255,.72);margin:0 0 10px;font-size:.93rem}
.footer-col a:hover{color:var(--accent)}
.socials{display:flex;gap:12px;margin-top:14px}
.socials a{width:38px;height:38px;border-radius:10px;display:grid;place-items:center;background:rgba(255,255,255,.08);color:#fff;font-size:1.05rem}
.socials a:hover{background:var(--accent);color:var(--primary)}
.footer-bottom{display:flex;justify-content:space-between;align-items:center;padding-top:22px;font-size:.84rem;color:rgba(255,255,255,.55);flex-wrap:wrap;gap:10px}
.footer-links a:hover{color:var(--accent)}

/* ---------- Fiche bien ---------- */
.bien-hero{display:grid;grid-template-columns:2fr 1fr;gap:12px;margin:24px 0}
.bien-hero .main{aspect-ratio:16/10;border-radius:var(--radius);overflow:hidden;background:var(--bg-soft)}
.bien-hero .main img,.bien-hero .main iframe{width:100%;height:100%;object-fit:cover;border:0}
.bien-hero .thumbs{display:grid;grid-template-rows:repeat(3,1fr);gap:12px}
.bien-hero .thumbs a{border-radius:var(--radius-sm);overflow:hidden;aspect-ratio:16/10;background:var(--bg-soft)}
.bien-hero .thumbs img{width:100%;height:100%;object-fit:cover}
.bien-hero .thumbs .more{position:relative}
.bien-hero .thumbs .more::after{content:attr(data-more);position:absolute;inset:0;background:rgba(23,26,33,.6);color:#fff;display:grid;place-items:center;font-weight:600}
.bien-layout{display:grid;grid-template-columns:1fr 360px;gap:40px;align-items:start}
.fact-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(120px,1fr));gap:14px;margin:22px 0}
.fact{background:var(--bg-soft);border-radius:var(--radius-sm);padding:16px}
.fact .v{font-family:var(--serif);font-size:1.4rem;font-weight:700;color:var(--primary)}
.fact .k{font-size:.8rem;color:var(--muted)}
.atouts{list-style:none;padding:0;display:grid;grid-template-columns:1fr 1fr;gap:10px}
.atouts li{display:flex;gap:10px;align-items:flex-start}.atouts li i{color:var(--accent);margin-top:3px}
.sticky-contact{position:sticky;top:94px;background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:26px;box-shadow:var(--shadow-sm)}
.sticky-contact .price{font-family:var(--serif);font-size:1.9rem;font-weight:700;color:var(--primary)}
.embed-360{aspect-ratio:16/9;border-radius:var(--radius);overflow:hidden;margin:16px 0}
.embed-360 iframe{width:100%;height:100%;border:0}

/* ---------- Formulaires publics ---------- */
.form-field{display:flex;flex-direction:column;gap:6px;margin-bottom:14px}
.form-field label{font-size:.82rem;font-weight:600;color:#39404e}
.form-field input,.form-field textarea,.form-field select{border:1px solid var(--line);border-radius:10px;padding:12px;font:inherit;background:#fff}
.form-field input:focus,.form-field textarea:focus{outline:2px solid var(--accent-soft);border-color:var(--accent)}
.alert{padding:14px 18px;border-radius:12px;margin-bottom:18px;font-size:.95rem}
.alert-success{background:#e8f5ee;color:#1e6b43;border:1px solid #bfe3cd}
.alert-danger{background:#fdecec;color:#9b2c2c;border:1px solid #f3c9c9}
.hp{position:absolute;left:-9999px}

/* ---------- Page-head générique ---------- */
.page-head{background:var(--primary);color:#fff;padding:60px 0}
.page-head h1{color:#fff;margin:0}
.page-head .crumb{color:rgba(255,255,255,.65);font-size:.9rem;margin-bottom:8px}
.badge-statut{display:inline-block;font-size:.76rem;font-weight:600;padding:4px 12px;border-radius:999px;background:var(--accent-soft);color:#6b5420}

/* ---------- Responsive ---------- */
@media(max-width:960px){
  .search-card{grid-template-columns:1fr 1fr}
  .about,.bien-layout,.bien-hero{grid-template-columns:1fr}
  .bien-hero .thumbs{grid-template-rows:none;grid-template-columns:repeat(3,1fr)}
  .footer-grid{grid-template-columns:1fr 1fr}
}
@media(max-width:720px){
  .nav-burger{display:block}
  .site-nav{position:fixed;inset:74px 0 auto 0;background:#fff;flex-direction:column;gap:0;padding:10px 24px 20px;
    border-bottom:1px solid var(--line);box-shadow:var(--shadow);transform:translateY(-120%);transition:.28s;align-items:stretch}
  .nav-toggle:checked ~ .site-nav{transform:translateY(0)}
  .site-nav a{padding:13px 0;border-bottom:1px solid var(--line)}
  .site-nav .nav-cta{text-align:center;margin-top:10px}
  .section{padding:60px 0}
  .search-card{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr;gap:28px}
  .cta{padding:40px 24px}
  .atouts{grid-template-columns:1fr}
}

/* ============================================================
   Immersion : diaporama hero, apparitions au scroll, tilt 3D
   ============================================================ */
.hero{background:var(--bg-dark);overflow:hidden}
.hero-slides{position:absolute;inset:0;z-index:0}
.hero-slide{position:absolute;inset:0;background-size:cover;background-position:center;opacity:0;animation:heroKen 27s infinite}
.hero-slide:nth-child(1){animation-delay:0s}
.hero-slide:nth-child(2){animation-delay:9s}
.hero-slide:nth-child(3){animation-delay:18s}
@keyframes heroKen{0%{opacity:0;transform:scale(1.12)}4%{opacity:1}30%{opacity:1}36%{opacity:0;transform:scale(1.2)}100%{opacity:0}}
.hero-overlay{position:absolute;inset:0;z-index:1;background:linear-gradient(120deg,rgba(20,22,28,.92),rgba(20,22,28,.5) 58%,rgba(20,22,28,.8))}
.hero-inner{position:relative;z-index:2}
.hero-scroll{position:absolute;left:50%;bottom:16px;transform:translateX(-50%);color:#fff;font-size:1.5rem;opacity:.7;animation:bob 2s infinite}
.hero-scroll:hover{opacity:1;color:var(--accent)}
@keyframes bob{0%,100%{transform:translate(-50%,0)}50%{transform:translate(-50%,8px)}}

/* Barre de progression de lecture */
.scroll-prog{position:fixed;top:0;left:0;height:3px;width:0;background:linear-gradient(90deg,var(--accent),#e7c884);z-index:999;transition:width .12s linear}

/* Apparition au scroll */
.reveal{opacity:0;transform:translateY(26px);transition:opacity .8s cubic-bezier(.2,.7,.2,1),transform .8s cubic-bezier(.2,.7,.2,1)}
.reveal.revealed{opacity:1;transform:none}
.biens-grid .reveal:nth-child(3n+2){transition-delay:.08s}
.biens-grid .reveal:nth-child(3n){transition-delay:.16s}

/* Cartes de biens en 3D (tilt géré en JS) */
.bien-card{transform-style:preserve-3d;will-change:transform}

/* Bouton WhatsApp flottant */
.fab-wa{position:fixed;right:20px;bottom:20px;z-index:998;width:56px;height:56px;border-radius:50%;
  background:#25d366;color:#fff;display:grid;place-items:center;font-size:1.6rem;
  box-shadow:0 8px 24px rgba(37,211,102,.45);animation:pulse 2.6s infinite;transition:transform .2s}
.fab-wa:hover{color:#fff;transform:scale(1.08)}
@keyframes pulse{0%{box-shadow:0 0 0 0 rgba(37,211,102,.5)}70%{box-shadow:0 0 0 16px rgba(37,211,102,0)}100%{box-shadow:0 0 0 0 rgba(37,211,102,0)}}

@media (prefers-reduced-motion: reduce){
  .hero-slide{animation:none;opacity:1}
  .hero-slide:nth-child(n+2){display:none}
  .hero-scroll,.fab-wa{animation:none}
  .reveal{opacity:1;transform:none;transition:none}
}

/* ============================================================
   Galerie plein écran (lightbox)
   ============================================================ */
.bien-hero .main{position:relative}
.js-zoom{cursor:zoom-in}
.zoom-hint{position:absolute;right:12px;bottom:12px;background:rgba(23,26,33,.82);color:#fff;font-size:.8rem;
  padding:6px 12px;border-radius:999px;backdrop-filter:blur(4px);pointer-events:none}
.lightbox{position:fixed;inset:0;z-index:1200;background:rgba(15,17,21,.95);display:flex;align-items:center;
  justify-content:center;opacity:0;visibility:hidden;transition:opacity .25s}
.lightbox.open{opacity:1;visibility:visible}
.lightbox img{max-width:92vw;max-height:84vh;border-radius:8px;box-shadow:0 20px 60px rgba(0,0,0,.5);user-select:none}
.lb-btn{position:absolute;top:50%;transform:translateY(-50%);width:52px;height:52px;border-radius:50%;border:0;
  background:rgba(255,255,255,.12);color:#fff;font-size:1.7rem;cursor:pointer;display:grid;place-items:center;transition:.2s}
.lb-btn:hover{background:var(--accent);color:#2a2410}
.lb-prev{left:18px}.lb-next{right:18px}
.lb-close{position:absolute;top:18px;right:18px;width:46px;height:46px;border-radius:50%;border:0;
  background:rgba(255,255,255,.12);color:#fff;font-size:1.5rem;cursor:pointer}
.lb-close:hover{background:var(--accent);color:#2a2410}
.lb-count{position:absolute;bottom:20px;left:50%;transform:translateX(-50%);color:rgba(255,255,255,.82);font-size:.9rem;letter-spacing:.05em}
@media(max-width:600px){.lb-btn{width:42px;height:42px;font-size:1.4rem}.lb-prev{left:8px}.lb-next{right:8px}}