/* =========================================================
   EXP-AIR SARL — Thème CLAIR
   Blanc / gris chaud + accent doré, titres navy
   ========================================================= */

:root{
  --bg:            #f7f6f2;
  --bg-2:          #ffffff;
  --surface:       #ffffff;
  --surface-2:     #f1efe8;
  --border:        #e6e2d8;
  --border-strong: #d8d3c6;
  --navy:          #16233f;   /* titres / éléments forts */
  --navy-2:        #24365c;
  --text:          #1e2735;
  --muted:         #5d6675;
  --muted-2:       #8a91a0;
  --gold:          #c68a12;   /* accent lisible sur clair */
  --gold-2:        #e2a92c;   /* remplissages / boutons */
  --gold-soft:     #f6ecd5;
  --gold-tint:     rgba(198,138,18,.10);
  --whatsapp:      #25d366;

  --font-head: "Space Grotesk", "Inter", ui-sans-serif, system-ui, sans-serif;
  --font-body: "Inter", ui-sans-serif, system-ui, sans-serif;

  --maxw: 1200px;
  --radius: 16px;
  --radius-sm: 10px;
  --shadow-sm: 0 2px 10px rgba(22,35,63,.05);
  --shadow: 0 18px 50px -24px rgba(22,35,63,.35);
  --ease: cubic-bezier(.22,.61,.36,1);
}

*{box-sizing:border-box}
html{scroll-behavior:smooth; -webkit-text-size-adjust:100%}
body{
  margin:0; font-family:var(--font-body);
  background:var(--bg); color:var(--text);
  line-height:1.6; font-size:16px; overflow-x:hidden;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%; display:block}
a{color:inherit; text-decoration:none}
button{font-family:inherit; cursor:pointer}

body::before{
  content:""; position:fixed; inset:0; z-index:-2;
  background:
    radial-gradient(800px 500px at 88% -10%, rgba(226,169,44,.12), transparent 60%),
    radial-gradient(900px 600px at -5% 0%, rgba(36,54,92,.06), transparent 55%),
    var(--bg);
}

/* ---------- Layout ---------- */
.container{width:min(var(--maxw), 92%); margin-inline:auto}
section{position:relative; padding:clamp(56px, 8vw, 108px) 0}
.eyebrow{
  display:inline-flex; align-items:center; gap:.55rem;
  font-family:var(--font-head); font-size:.72rem; letter-spacing:.22em;
  text-transform:uppercase; color:var(--gold); font-weight:600; margin:0 0 1rem;
}
.eyebrow::before{content:""; width:26px; height:1px; background:var(--gold); opacity:.8}
h1,h2,h3,h4{font-family:var(--font-head); font-weight:600; line-height:1.12; margin:0; color:var(--navy)}
.section-title{font-size:clamp(1.7rem,3.6vw,2.8rem); letter-spacing:-.02em; max-width:22ch; margin-bottom:1rem}
.section-intro{color:var(--muted); max-width:62ch; font-size:1.05rem}
.text-gold{color:var(--gold)}
.center{text-align:center; margin-inline:auto}

/* ---------- Boutons ---------- */
.btn{
  display:inline-flex; align-items:center; gap:.6rem;
  padding:.85rem 1.5rem; border-radius:999px; font-weight:600; font-size:.95rem;
  border:1px solid transparent; transition:all .3s var(--ease); white-space:nowrap;
}
.btn svg{width:18px; height:18px}
.btn-primary{background:var(--gold-2); color:#3b2905; box-shadow:0 12px 26px -12px rgba(226,169,44,.75)}
.btn-primary:hover{background:var(--gold); color:#fff; transform:translateY(-2px)}
.btn-dark{background:var(--navy); color:#fff}
.btn-dark:hover{background:var(--navy-2); transform:translateY(-2px)}
.btn-ghost{background:#fff; color:var(--navy); border-color:var(--border-strong)}
.btn-ghost:hover{border-color:var(--gold); color:var(--gold); background:var(--gold-tint)}
.btn-outline{background:transparent; border-color:var(--border-strong); color:var(--navy)}
.btn-outline:hover{border-color:var(--gold); color:var(--gold)}

/* ---------- Header (2 niveaux) ---------- */
.site-header{position:fixed; top:0; left:0; right:0; z-index:100; transition:box-shadow .35s var(--ease)}
.site-header.scrolled{box-shadow:var(--shadow-sm)}
/* Barre utilitaire */
.topbar{background:var(--navy); color:#c7d0e0; font-size:.82rem; transition:height .35s var(--ease), opacity .3s; overflow:hidden}
.topbar-inner{display:flex; align-items:center; justify-content:space-between; height:42px; gap:1rem}
.topbar a{color:#c7d0e0; transition:color .2s}
.topbar a:hover{color:#fff}
.tb-left{display:flex; gap:1.5rem; align-items:center; min-width:0}
.tb-right{display:flex; gap:.55rem; align-items:center}
.tb-item{display:inline-flex; align-items:center; gap:.4rem; white-space:nowrap}
.tb-item svg{width:14px; height:14px; color:var(--gold-2); flex:none}
.tb-phone{font-weight:600; color:#fff}
.tb-social{width:28px; height:28px; border-radius:7px; display:grid; place-items:center; border:1px solid rgba(255,255,255,.16); transition:all .25s}
.tb-social:hover{background:var(--gold-2); color:#3b2905; border-color:var(--gold-2)}
.tb-social svg{width:14px; height:14px}
.site-header.scrolled .topbar{height:0; opacity:0}
/* Menu principal */
.nav{position:relative; background:#fff; border-bottom:1px solid var(--border); transition:all .35s var(--ease)}
.nav-inner{display:flex; align-items:center; justify-content:space-between; height:72px}
.brand{display:flex; align-items:center; gap:.6rem; font-family:var(--font-head); font-weight:700}
.brand .logo-mark{width:38px; height:38px; border-radius:10px; display:grid; place-items:center;
  background:linear-gradient(135deg, var(--gold-2), #a9740f); color:#fff; font-weight:700; font-size:1.05rem;
  box-shadow:0 6px 16px -6px rgba(226,169,44,.7)}
.brand b{font-size:1.15rem; color:var(--navy)}
.brand span{color:var(--muted-2); font-weight:500; font-size:.66rem; letter-spacing:.18em; display:block; text-transform:uppercase; margin-top:-2px}
.nav-links{display:flex; align-items:center; gap:.15rem; list-style:none; margin:0; padding:0}
.nav-links a{position:relative; padding:.6rem .95rem; border-radius:8px; color:var(--navy); font-weight:600; font-size:.94rem; transition:all .25s}
.nav-links a::after{content:""; position:absolute; left:.95rem; right:.95rem; bottom:.35rem; height:2px; background:var(--gold); border-radius:2px; transform:scaleX(0); transform-origin:left; transition:transform .28s var(--ease)}
.nav-links a:hover{color:var(--gold)}
.nav-links a:hover::after{transform:scaleX(1)}
.nav-links a.active{color:var(--gold)}
.nav-links a.active::after{transform:scaleX(1)}
.nav-cta{display:flex; align-items:center; gap:.9rem}
.nav-toggle{display:none; background:none; border:0; color:var(--navy); width:44px; height:44px}
.nav-toggle svg{width:26px; height:26px}

/* ---------- Page header (pages internes) ---------- */
.page-hero{padding:calc(120px + clamp(30px,6vw,64px)) 0 clamp(40px,7vw,72px); position:relative; overflow:hidden}
.page-hero::after{content:""; position:absolute; inset:0; z-index:-1;
  background:radial-gradient(700px 380px at 85% -20%, rgba(226,169,44,.14), transparent 60%)}
.page-hero h1{font-size:clamp(2rem,5vw,3.4rem); letter-spacing:-.02em; margin:.6rem 0 1rem}
.page-hero p{color:var(--muted); font-size:1.1rem; max-width:60ch}
.crumbs{font-size:.85rem; color:var(--muted-2)}
.crumbs a:hover{color:var(--gold)}

/* ---------- Hero slider (accueil) ---------- */
.hero-slider{position:relative; height:100svh; min-height:600px; max-height:900px; overflow:hidden; background:var(--navy)}
.hero-slider .slides{position:absolute; inset:0}
.slide{position:absolute; inset:0; background-size:cover; background-position:center;
  display:flex; align-items:center; opacity:0; visibility:hidden;
  transform:scale(1.06); transition:opacity 1s var(--ease), transform 6.5s linear, visibility 1s}
.slide.active{opacity:1; visibility:visible; transform:scale(1)}
.slide-overlay{position:absolute; inset:0;
  background:linear-gradient(180deg, rgba(9,15,28,.55) 0%, rgba(9,15,28,.4) 45%, rgba(9,15,28,.85) 100%),
             linear-gradient(90deg, rgba(9,15,28,.85) 5%, rgba(9,15,28,.15) 65%, transparent 100%)}
.hero-actions{display:flex; flex-wrap:wrap; gap:.9rem}
.slide-content{position:relative; z-index:2; max-width:760px; padding-top:60px}
.slide-content .eyebrow{color:var(--gold-2)}
.slide-content .eyebrow::before{background:var(--gold-2)}
.slide-content h1{color:#fff; font-size:clamp(2.2rem,5.4vw,4.2rem); letter-spacing:-.03em; line-height:1.08; margin:.3rem 0 1.2rem;
  text-shadow:0 2px 20px rgba(0,0,0,.35)}
.slide-content .slide-text{color:rgba(255,255,255,.9); font-size:clamp(1.02rem,1.6vw,1.2rem); max-width:56ch; margin:0 0 2rem;
  text-shadow:0 1px 12px rgba(0,0,0,.35)}
/* animation d'entrée du contenu */
.slide .eyebrow,.slide h1,.slide .slide-text,.slide .hero-actions{opacity:0; transform:translateY(22px); transition:all .7s var(--ease)}
.slide.active .eyebrow{opacity:1; transform:none; transition-delay:.25s}
.slide.active h1{opacity:1; transform:none; transition-delay:.4s}
.slide.active .slide-text{opacity:1; transform:none; transition-delay:.55s}
.slide.active .hero-actions{opacity:1; transform:none; transition-delay:.7s}
/* contrôles */
.slider-arrow{position:absolute; top:50%; transform:translateY(-50%); z-index:5; width:52px; height:52px; border-radius:50%;
  background:rgba(255,255,255,.12); border:1px solid rgba(255,255,255,.3); color:#fff; display:grid; place-items:center;
  backdrop-filter:blur(6px); transition:all .3s; cursor:pointer}
.slider-arrow:hover{background:var(--gold-2); color:#3b2905; border-color:var(--gold-2)}
.slider-arrow svg{width:26px; height:26px}
.slider-arrow.prev{left:24px} .slider-arrow.next{right:24px}
.slider-dots{position:absolute; bottom:30px; left:50%; transform:translateX(-50%); z-index:5; display:flex; gap:.6rem}
.slider-dots .dot{width:11px; height:11px; border-radius:50%; border:0; background:rgba(255,255,255,.4); cursor:pointer; transition:all .3s; padding:0}
.slider-dots .dot.active{background:var(--gold-2); width:32px; border-radius:999px}
.btn-glass{background:rgba(255,255,255,.14); color:#fff; border-color:rgba(255,255,255,.4); backdrop-filter:blur(6px)}
.btn-glass:hover{background:#fff; color:var(--navy); border-color:#fff; transform:translateY(-2px)}

/* ---------- Bande "features" ---------- */
.features-band{background:#fff; border-bottom:1px solid var(--border); padding:0}
.features-grid{display:grid; grid-template-columns:repeat(4,1fr)}
.feature{display:flex; gap:1rem; align-items:flex-start; padding:2.2rem 1.6rem; border-left:1px solid var(--border)}
.feature:first-child{border-left:0}
.feature .f-ico{width:46px; height:46px; border-radius:12px; flex:none; display:grid; place-items:center;
  background:var(--gold-soft); color:var(--gold); border:1px solid rgba(198,138,18,.2)}
.feature .f-ico svg{width:24px; height:24px}
.feature h3{font-size:1.02rem; margin-bottom:.3rem}
.feature p{color:var(--muted); font-size:.88rem; margin:0}

/* Sections alternées */
section.alt{background:#fff; border-block:1px solid var(--border)}

/* ---------- Stats ---------- */
.stats{border-block:1px solid var(--border); background:#fff}
.stats-grid{display:grid; grid-template-columns:repeat(4,1fr)}
.stat{padding:2.4rem 1.5rem; text-align:center; border-left:1px solid var(--border)}
.stat:first-child{border-left:0}
.stat b{font-family:var(--font-head); font-size:clamp(2rem,4vw,3rem); color:var(--gold); display:block; line-height:1}
.stat span{color:var(--muted); font-size:.85rem; letter-spacing:.04em; margin-top:.5rem; display:block}

/* ---------- About ---------- */
.about-grid{display:grid; grid-template-columns:1fr 1fr; gap:clamp(2rem,5vw,4.5rem); align-items:center}
.approach-tag{font-family:var(--font-head); font-size:clamp(1.5rem,2.6vw,2.1rem); letter-spacing:-.02em; line-height:1.25; margin:1.4rem 0 0; color:var(--navy)}
.mv-cards{display:grid; gap:1rem}
.mv-card{border:1px solid var(--border); border-radius:var(--radius); padding:1.6rem 1.7rem; background:#fff; box-shadow:var(--shadow-sm); transition:all .3s}
.mv-card:hover{border-color:var(--gold); transform:translateX(4px)}
.mv-card h3{font-size:.78rem; letter-spacing:.2em; color:var(--gold); text-transform:uppercase; margin-bottom:.6rem}
.mv-card p{margin:0; color:var(--muted)}

/* ---------- Services ---------- */
.head-row{display:flex; justify-content:space-between; align-items:flex-end; flex-wrap:wrap; gap:1.5rem; margin-bottom:3rem}
.services-grid{display:grid; grid-template-columns:repeat(3,1fr); gap:1rem}
.service{position:relative; border:1px solid var(--border); border-radius:var(--radius); padding:1.8rem 1.7rem; background:#fff; box-shadow:var(--shadow-sm); overflow:hidden; transition:all .35s var(--ease)}
.service::before{content:""; position:absolute; inset:0; opacity:0; transition:opacity .35s; background:radial-gradient(400px 200px at 100% 0%, var(--gold-tint), transparent 70%)}
.service:hover{transform:translateY(-6px); border-color:var(--gold); box-shadow:var(--shadow)}
.service:hover::before{opacity:1}
.service .num{font-family:var(--font-head); font-size:.8rem; color:var(--gold); font-weight:600; letter-spacing:.1em}
.service .ico{width:48px; height:48px; border-radius:12px; display:grid; place-items:center; margin:.9rem 0 1.1rem; background:var(--gold-soft); color:var(--gold); border:1px solid rgba(198,138,18,.2)}
.service .ico svg{width:24px; height:24px}
.service h3{font-size:1.15rem; margin-bottom:.5rem}
.service p{color:var(--muted); font-size:.92rem; margin:0}

/* ---------- Projects ---------- */
.filters{display:inline-flex; gap:.4rem; background:#fff; border:1px solid var(--border); padding:.35rem; border-radius:999px; box-shadow:var(--shadow-sm)}
.filter{border:0; background:transparent; color:var(--muted); font-weight:600; font-size:.88rem; padding:.5rem 1.1rem; border-radius:999px; transition:all .3s}
.filter.active{background:var(--gold-2); color:#3b2905}
.filter:hover:not(.active){color:var(--navy)}
.projects-grid{display:grid; grid-template-columns:repeat(3,1fr); gap:1.1rem}
.project{position:relative; border-radius:var(--radius); overflow:hidden; cursor:pointer; border:1px solid var(--border); background:#fff; aspect-ratio:4/3; box-shadow:var(--shadow-sm); transition:all .4s var(--ease)}
.project:hover{transform:translateY(-5px); border-color:var(--gold); box-shadow:var(--shadow)}
.project img{width:100%; height:100%; object-fit:cover; transition:transform .6s var(--ease)}
.project:hover img{transform:scale(1.06)}
.project-overlay{position:absolute; inset:0; display:flex; flex-direction:column; justify-content:flex-end; padding:1.3rem;
  background:linear-gradient(180deg, transparent 28%, rgba(11,18,32,.5) 58%, rgba(11,18,32,.92) 100%)}
.project .status{align-self:flex-start; font-family:var(--font-head); font-size:.64rem; font-weight:700; letter-spacing:.14em; padding:.32rem .65rem; border-radius:999px; margin-bottom:auto}
.status.done{background:var(--gold-2); color:#3b2905}
.status.wip{background:#fff; color:var(--navy)}
.project .loc{color:var(--gold-soft); font-size:.78rem; font-weight:600; margin-bottom:.2rem; display:flex; align-items:center; gap:.35rem}
.project h3{font-size:1.15rem; color:#fff; letter-spacing:-.01em}
.project .count{position:absolute; top:1.1rem; right:1.1rem; background:rgba(255,255,255,.92); color:var(--navy); font-size:.72rem; font-weight:700; padding:.3rem .6rem; border-radius:999px; display:flex; align-items:center; gap:.35rem; border:1px solid var(--border)}
.project .count svg{width:13px; height:13px}

/* ---------- Technologies ---------- */
.tech{background:#fff; border-block:1px solid var(--border)}
.tech-grid{display:grid; grid-template-columns:1fr 1.3fr; gap:clamp(2rem,5vw,4rem); align-items:center}
.brands{display:flex; flex-wrap:wrap; gap:.7rem}
.brand-chip{border:1px solid var(--border); border-radius:999px; padding:.6rem 1.15rem; font-family:var(--font-head); font-weight:500; font-size:.9rem; color:var(--navy); background:var(--bg); transition:all .3s}
.brand-chip:hover{border-color:var(--gold); color:var(--gold); transform:translateY(-2px)}
.disclaimer{color:var(--muted-2); font-size:.82rem; margin-top:1.6rem; font-style:italic}

/* ---------- Method ---------- */
.method-grid{display:grid; grid-template-columns:repeat(4,1fr); gap:1rem; margin-top:1rem}
.step{position:relative; border:1px solid var(--border); border-radius:var(--radius); padding:1.7rem 1.5rem; background:#fff; box-shadow:var(--shadow-sm); transition:all .3s}
.step:hover{border-color:var(--gold); transform:translateY(-4px)}
.step .step-num{font-family:var(--font-head); font-size:2.4rem; font-weight:700; color:var(--gold-soft); line-height:1}
.step h3{font-size:1.1rem; margin:.6rem 0 .5rem}
.step p{color:var(--muted); font-size:.9rem; margin:0}

/* ---------- CTA ---------- */
.cta{border-radius:calc(var(--radius) + 6px); padding:clamp(2.5rem,6vw,4.5rem); overflow:hidden; position:relative; color:#fff;
  background:radial-gradient(700px 400px at 82% -10%, rgba(226,169,44,.35), transparent 60%), linear-gradient(160deg, var(--navy-2), var(--navy))}
.cta .eyebrow{color:var(--gold-2)}
.cta h2{color:#fff; font-size:clamp(1.8rem,4vw,3rem); letter-spacing:-.02em; max-width:22ch; margin-bottom:1.1rem}
.cta p{color:rgba(255,255,255,.78); max-width:60ch; font-size:1.08rem; margin:0 0 2rem}
.cta-actions{display:flex; flex-wrap:wrap; gap:1rem; align-items:center}
.cta-phone{display:inline-flex; align-items:center; gap:.6rem; font-family:var(--font-head); font-weight:600; font-size:1.15rem; color:#fff}
.cta-phone svg{width:20px; height:20px; color:var(--gold-2)}

/* ---------- Contact form ---------- */
.contact-grid{display:grid; grid-template-columns:1fr 1fr; gap:clamp(2rem,5vw,4rem); align-items:start}
.form-card{background:#fff; border:1px solid var(--border); border-radius:var(--radius); padding:clamp(1.6rem,3vw,2.4rem); box-shadow:var(--shadow-sm)}
.field{margin-bottom:1.1rem}
.field label{display:block; font-size:.85rem; font-weight:600; color:var(--navy); margin-bottom:.4rem}
.field input, .field textarea{width:100%; padding:.8rem 1rem; border:1px solid var(--border-strong); border-radius:10px; font:inherit; color:var(--text); background:var(--bg); transition:border-color .25s, box-shadow .25s}
.field input:focus, .field textarea:focus{outline:0; border-color:var(--gold); box-shadow:0 0 0 3px var(--gold-tint)}
.field textarea{min-height:140px; resize:vertical}
.form-row{display:grid; grid-template-columns:1fr 1fr; gap:1rem}
.info-block{display:grid; gap:1rem}
.info-item{display:flex; gap:1rem; align-items:flex-start; background:#fff; border:1px solid var(--border); border-radius:var(--radius); padding:1.3rem 1.4rem; box-shadow:var(--shadow-sm)}
.info-item .ii-ico{width:44px; height:44px; border-radius:10px; flex:none; display:grid; place-items:center; background:var(--gold-soft); color:var(--gold)}
.info-item .ii-ico svg{width:20px; height:20px}
.info-item h4{font-size:.75rem; letter-spacing:.14em; text-transform:uppercase; color:var(--muted-2); margin-bottom:.25rem}
.info-item p, .info-item a{margin:0; color:var(--navy); font-weight:600}
.info-item a:hover{color:var(--gold)}
.alert{border-radius:10px; padding:.9rem 1.1rem; font-size:.92rem; margin-bottom:1.2rem}
.alert-ok{background:#eaf7ee; border:1px solid #bfe4cb; color:#1c6b37}
.alert-err{background:#fdecec; border:1px solid #f2c2c2; color:#a12b2b}

/* ---------- Project detail gallery ---------- */
.gallery{display:grid; grid-template-columns:repeat(3,1fr); gap:.9rem}
.gallery a{border-radius:12px; overflow:hidden; border:1px solid var(--border); aspect-ratio:4/3; box-shadow:var(--shadow-sm)}
.gallery img{width:100%; height:100%; object-fit:cover; transition:transform .5s var(--ease)}
.gallery a:hover img{transform:scale(1.06)}
.proj-meta{display:flex; flex-wrap:wrap; gap:.6rem 2rem; margin:1.2rem 0 0; color:var(--muted); font-size:.95rem}
.proj-meta b{color:var(--navy)}

/* ---------- Footer structuré ---------- */
.footer{border-top:1px solid var(--border); background:#fff; position:relative}
/* Bandeau contact rapide */
.footer-strip{background:var(--surface-2); border-bottom:1px solid var(--border)}
.footer-strip-inner{display:grid; grid-template-columns:repeat(3,1fr)}
.fs-item{display:flex; align-items:center; gap:.9rem; padding:1.5rem 1.2rem; border-left:1px solid var(--border); transition:background .25s}
.fs-item:first-child{border-left:0}
a.fs-item:hover{background:#fff}
.fs-ico{width:46px; height:46px; border-radius:12px; flex:none; display:grid; place-items:center; background:#fff; color:var(--gold); border:1px solid var(--border)}
.fs-ico svg{width:20px; height:20px}
.fs-item small{display:block; color:var(--muted-2); font-size:.72rem; letter-spacing:.06em; text-transform:uppercase}
.fs-item b{color:var(--navy); font-size:.98rem}
a.fs-item:hover b{color:var(--gold)}
/* Colonnes */
.footer-grid{display:grid; grid-template-columns:1.7fr 1fr 1fr 1.15fr; gap:2.5rem; padding:3.6rem 0 2.2rem}
.footer-brand p{color:var(--muted); font-size:.92rem; max-width:42ch; margin:1rem 0 0}
.footer-devise{font-family:var(--font-head); color:var(--gold); font-weight:600; margin-top:.7rem!important}
.footer h4{font-family:var(--font-head); font-size:.75rem; letter-spacing:.2em; color:var(--navy); text-transform:uppercase; margin-bottom:1.2rem; position:relative; padding-bottom:.6rem}
.footer h4::after{content:""; position:absolute; left:0; bottom:0; width:28px; height:2px; background:var(--gold)}
.footer ul{list-style:none; margin:0; padding:0; display:grid; gap:.65rem}
.footer ul a, .footer ul li{color:var(--muted); font-size:.92rem; transition:color .25s}
.footer ul a:hover{color:var(--gold)}
.footer .contact-line{display:flex; align-items:flex-start; gap:.55rem}
.footer .contact-line svg{width:15px; height:15px; color:var(--gold); flex:none; margin-top:.18rem}
.socials{display:flex; gap:.6rem; margin-top:1.3rem}
.socials a{width:40px; height:40px; border-radius:10px; display:grid; place-items:center; border:1px solid var(--border); color:var(--muted); transition:all .3s}
.socials a:hover{border-color:var(--gold); color:var(--gold); transform:translateY(-2px)}
.socials svg{width:19px; height:19px}
/* Barre inférieure */
.footer-bottom{display:flex; justify-content:space-between; align-items:center; flex-wrap:wrap; gap:1rem; padding:1.6rem 0; border-top:1px solid var(--border); color:var(--muted-2); font-size:.82rem}
.footer-bottom-links{display:flex; gap:1.3rem}
.footer-bottom-links a{color:var(--muted)}
.footer-bottom-links a:hover{color:var(--gold)}
.footer-bottom .tag{font-family:var(--font-head); letter-spacing:.16em; text-transform:uppercase}
/* Bouton retour en haut */
.to-top{position:absolute; right:24px; top:-22px; width:46px; height:46px; border-radius:12px; background:var(--navy); color:#fff; border:0; display:grid; place-items:center; cursor:pointer; box-shadow:var(--shadow); transition:all .3s; z-index:2}
.to-top:hover{background:var(--gold-2); color:#3b2905; transform:translateY(-3px)}
.to-top svg{width:20px; height:20px}

/* ---------- Lightbox ---------- */
.lb{position:fixed; inset:0; z-index:200; display:none; place-items:center; background:rgba(16,22,36,.82); backdrop-filter:blur(8px); padding:2vw}
.lb.open{display:grid}
.lb-inner{width:min(1100px,96vw); max-height:94vh; display:flex; flex-direction:column; gap:1rem}
.lb-head{display:flex; align-items:flex-start; justify-content:space-between; gap:1rem; color:#fff}
.lb-head .lb-loc{color:var(--gold-2); font-size:.8rem; font-weight:600}
.lb-head h3{color:#fff; font-family:var(--font-head); font-size:1.5rem; margin-top:.2rem}
.lb-head p{color:rgba(255,255,255,.75); font-size:.92rem; margin:.4rem 0 0; max-width:60ch}
.lb-close{background:rgba(255,255,255,.12); border:1px solid rgba(255,255,255,.25); color:#fff; width:46px; height:46px; border-radius:12px; flex:none; display:grid; place-items:center; transition:all .3s}
.lb-close:hover{background:var(--gold-2); color:#3b2905; border-color:var(--gold-2)}
.lb-close svg{width:22px; height:22px}
.lb-stage{position:relative; flex:1; min-height:0; display:grid; place-items:center; background:#0d1526; border-radius:var(--radius); overflow:hidden}
.lb-stage img{max-width:100%; max-height:66vh; object-fit:contain}
.lb-nav{position:absolute; top:50%; transform:translateY(-50%); width:48px; height:48px; border-radius:50%; background:rgba(255,255,255,.14); border:1px solid rgba(255,255,255,.28); color:#fff; display:grid; place-items:center; transition:all .3s}
.lb-nav:hover{background:var(--gold-2); color:#3b2905; border-color:var(--gold-2)}
.lb-nav svg{width:24px; height:24px}
.lb-prev{left:14px} .lb-next{right:14px}
.lb-counter{position:absolute; bottom:12px; left:50%; transform:translateX(-50%); background:rgba(0,0,0,.55); padding:.3rem .8rem; border-radius:999px; font-size:.78rem; color:#fff}
.lb-thumbs{display:flex; gap:.5rem; overflow-x:auto; padding-bottom:.3rem}
.lb-thumbs img{width:78px; height:58px; object-fit:cover; border-radius:8px; opacity:.5; cursor:pointer; border:2px solid transparent; transition:all .25s; flex:none}
.lb-thumbs img.active{opacity:1; border-color:var(--gold-2)}

/* ---------- Bouton WhatsApp flottant ---------- */
.wa-fab{position:fixed; right:22px; bottom:22px; z-index:90; display:inline-flex; align-items:center; gap:.6rem;
  height:58px; padding:0 18px; border-radius:999px; background:var(--whatsapp); color:#fff; font-weight:600;
  box-shadow:0 12px 30px -8px rgba(37,211,102,.6); transition:all .3s var(--ease)}
.wa-fab svg{width:30px; height:30px; flex:none}
.wa-fab .wa-label{font-size:.95rem; max-width:0; overflow:hidden; white-space:nowrap; opacity:0; transition:all .35s var(--ease)}
.wa-fab:hover{background:#1ebe5b; transform:translateY(-2px)}
.wa-fab:hover .wa-label{max-width:160px; opacity:1}
.wa-fab::before{content:""; position:absolute; inset:0; border-radius:999px; background:var(--whatsapp); z-index:-1; animation:waPulse 2.4s ease-out infinite}
@keyframes waPulse{0%{transform:scale(1); opacity:.55} 70%{transform:scale(1.35); opacity:0} 100%{opacity:0}}
@media (max-width:560px){.wa-fab{height:54px; right:16px; bottom:16px; padding:0 15px} .wa-fab .wa-label{display:none}}

/* ---------- Reveal ---------- */
.reveal{opacity:0; transform:translateY(24px); transition:opacity .7s var(--ease), transform .7s var(--ease)}
.reveal.in{opacity:1; transform:none}

/* ---------- Responsive ---------- */
@media (max-width:960px){
  .about-grid, .tech-grid, .contact-grid{grid-template-columns:1fr; gap:2.4rem}
  .services-grid{grid-template-columns:repeat(2,1fr)}
  .method-grid{grid-template-columns:repeat(2,1fr)}
  .stats-grid{grid-template-columns:repeat(2,1fr)}
  .stat{border-top:1px solid var(--border)} .stat:nth-child(-n+2){border-top:0} .stat:nth-child(3){border-left:0}
  .projects-grid, .gallery{grid-template-columns:repeat(2,1fr)}
  .features-grid{grid-template-columns:repeat(2,1fr)}
  .feature{border-top:1px solid var(--border)} .feature:nth-child(-n+2){border-top:0} .feature:nth-child(3){border-left:0}
  .footer-grid{grid-template-columns:1fr 1fr} .footer-brand{grid-column:1/-1}
  .nav-links, .nav-cta .btn{display:none}
  .nav-toggle{display:grid; place-items:center}
  .nav.open .nav-links{display:flex; position:absolute; top:100%; left:0; right:0; flex-direction:column; align-items:stretch; background:#fff; border-bottom:1px solid var(--border); padding:1rem; gap:.15rem; box-shadow:var(--shadow)}
  .nav.open .nav-links a{padding:.9rem 1rem}
  .nav.open .nav-links a::after{display:none}
  .slider-arrow{width:44px; height:44px} .slider-arrow.prev{left:12px} .slider-arrow.next{right:12px}
  .tb-hide-sm{display:none}
}
@media (max-width:560px){
  .services-grid, .method-grid, .stats-grid, .projects-grid, .gallery, .form-row, .features-grid{grid-template-columns:1fr}
  .stat{border-left:0!important; border-top:1px solid var(--border)} .stat:first-child{border-top:0}
  .feature{border-left:0!important; border-top:1px solid var(--border)} .feature:first-child{border-top:0}
  .footer-grid{grid-template-columns:1fr; gap:2rem}
  .footer-strip-inner{grid-template-columns:1fr}
  .fs-item{border-left:0; border-top:1px solid var(--border)} .fs-item:first-child{border-top:0}
  .footer-bottom{justify-content:flex-start}
  .to-top{right:16px}
  .tb-left{gap:0} .topbar{font-size:.76rem}
  .slide-content{padding-top:40px}
}
@media (prefers-reduced-motion:reduce){
  *{animation:none!important; transition:none!important; scroll-behavior:auto!important}
  .reveal{opacity:1; transform:none}
}