/* ==========================================================================
   TEC - Artisan Couvreur & Étancheur
   Feuille de styles principale
   Palette inspirée du logo : ardoise profonde + marbre veiné + or patiné
   ========================================================================== */

:root {
  /* Couleurs */
  --slate-900: #0e0e11;
  --slate-800: #17171b;
  --slate-700: #1f1f24;
  --slate-600: #2a2a31;
  --slate-500: #3a3a43;
  --slate-400: #5a5a65;
  --marble-50: #f6f3ec;
  --marble-100: #ece7d9;
  --marble-200: #d8d1bd;
  --gold-400: #d4c9a8;
  --gold-500: #c9b37e;
  --gold-600: #a89668;
  --gold-700: #8a7d5f;
  --accent: #c9b37e;
  --text: #e8e4d8;
  --text-dim: #a8a396;
  --text-muted: #7a7568;
  --danger: #c05a4b;
  --success: #6fa876;

  /* Typographie */
  --font-serif: 'Cormorant Garamond', 'Playfair Display', Georgia, serif;
  --font-sans: 'Inter', 'Helvetica Neue', Arial, sans-serif;

  /* Mesures */
  --radius: 4px;
  --radius-lg: 10px;
  --shadow-sm: 0 2px 8px rgba(0,0,0,.25);
  --shadow-md: 0 8px 24px rgba(0,0,0,.35);
  --shadow-lg: 0 20px 60px rgba(0,0,0,.55);
  --container: 1200px;
  --nav-h: 104px;
  --transition: .35s cubic-bezier(.2,.6,.2,1);
}

/* Reset */
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{
  font-family:var(--font-sans);
  background:var(--slate-900);
  color:var(--text);
  line-height:1.65;
  font-size:16px;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
img,svg,video{display:block;max-width:100%;height:auto}
a{color:var(--gold-400);text-decoration:none;transition:color var(--transition)}
a:hover{color:var(--marble-50)}
ul{list-style:none}
button{font-family:inherit;cursor:pointer;border:none;background:none;color:inherit}

/* Typographie */
h1,h2,h3,h4{font-family:var(--font-serif);font-weight:600;letter-spacing:.01em;line-height:1.2;color:var(--marble-50)}
h1{font-size:clamp(2.4rem,5vw,4.2rem)}
h2{font-size:clamp(1.8rem,3.5vw,2.8rem)}
h3{font-size:clamp(1.3rem,2.2vw,1.6rem)}
h4{font-size:1.15rem}
p{color:var(--text-dim)}
.lead{font-size:1.15rem;color:var(--text);max-width:680px}

.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 24px}
.section{padding:96px 0;position:relative}
.section-sm{padding:64px 0}
.section-title{position:relative;margin-bottom:16px}
.section-kicker{display:inline-block;font-family:var(--font-sans);font-size:.8rem;font-weight:600;letter-spacing:.25em;text-transform:uppercase;color:var(--gold-500);margin-bottom:14px}
.section-header{text-align:center;max-width:780px;margin:0 auto 56px}
.section-header p{font-size:1.05rem}

/* Texture marbre globale */
.marble-bg{
  background:
    radial-gradient(1200px 600px at 10% -10%, rgba(201,179,126,.07), transparent 60%),
    radial-gradient(900px 500px at 100% 30%, rgba(216,209,189,.04), transparent 60%),
    linear-gradient(180deg, var(--slate-900), var(--slate-800));
  position:relative;
}
.marble-bg::before{
  content:"";position:absolute;inset:0;pointer-events:none;
  background-image:
    url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' width='400' height='400'><filter id='n'><feTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='2' stitchTiles='stitch'/><feColorMatrix values='0 0 0 0 0.9 0 0 0 0 0.85 0 0 0 0 0.7 0 0 0 0.05 0'/></filter><rect width='100%' height='100%' filter='url(%23n)'/></svg>");
  opacity:.45;mix-blend-mode:overlay;
}

/* Navigation */
.topbar{background:var(--slate-900);border-bottom:1px solid rgba(201,179,126,.1);font-size:.88rem;color:var(--text-muted)}
.topbar-inner{display:flex;justify-content:space-between;align-items:center;padding:10px 24px;max-width:var(--container);margin:0 auto;flex-wrap:wrap;gap:12px}
.topbar a{color:var(--text-dim)}
.topbar a:hover{color:var(--gold-400)}
.topbar-left{display:flex;gap:20px;flex-wrap:wrap}

.nav{
  position:sticky;top:0;z-index:200;
  background:rgba(14,14,17,.88);
  backdrop-filter:blur(14px);
  -webkit-backdrop-filter:blur(14px);
  border-bottom:1px solid rgba(201,179,126,.12);
  transition:background var(--transition),border var(--transition);
}
.nav-inner{display:flex;justify-content:space-between;align-items:center;height:var(--nav-h);max-width:var(--container);margin:0 auto;padding:0 24px}
.nav-logo{display:flex;align-items:center;gap:12px;font-family:var(--font-serif);font-size:1.6rem;color:var(--marble-50);letter-spacing:.08em}
.nav-logo img{height:80px;width:auto;display:block;filter:drop-shadow(0 2px 8px rgba(0,0,0,.5))}
@media (max-width: 720px){
  .nav-logo img{height:56px}
}
.nav-logo span{font-size:.7rem;letter-spacing:.3em;color:var(--gold-500);font-family:var(--font-sans);text-transform:uppercase;font-weight:500;display:block;margin-top:-2px}
.nav-brand{display:flex;flex-direction:column;line-height:1}
.nav-links{display:flex;gap:34px;align-items:center}
.nav-links a{color:var(--text);font-size:.95rem;letter-spacing:.03em;position:relative;padding:4px 0}
.nav-links a::after{content:"";position:absolute;left:0;right:0;bottom:-4px;height:1px;background:var(--gold-500);transform:scaleX(0);transform-origin:right;transition:transform var(--transition)}
.nav-links a:hover::after,.nav-links a.active::after{transform:scaleX(1);transform-origin:left}
.nav-links a.active{color:var(--gold-400)}
.nav-cta{background:linear-gradient(180deg,var(--gold-500),var(--gold-700));color:var(--slate-900)!important;padding:10px 20px;border-radius:var(--radius);font-weight:600;letter-spacing:.05em}
.nav-cta:hover{background:linear-gradient(180deg,var(--marble-50),var(--gold-400));color:var(--slate-900)!important}
.nav-cta::after{display:none!important}

.burger{display:none;width:40px;height:40px;position:relative}
.burger span{position:absolute;left:8px;right:8px;height:2px;background:var(--marble-50);transition:var(--transition)}
.burger span:nth-child(1){top:13px}
.burger span:nth-child(2){top:19px}
.burger span:nth-child(3){top:25px}
.nav.open .burger span:nth-child(1){top:19px;transform:rotate(45deg)}
.nav.open .burger span:nth-child(2){opacity:0}
.nav.open .burger span:nth-child(3){top:19px;transform:rotate(-45deg)}

/* Hero */
.hero{
  position:relative;min-height:86vh;display:flex;align-items:center;overflow:hidden;
  background:
    linear-gradient(180deg, rgba(14,14,17,.55) 0%, rgba(14,14,17,.85) 100%),
    radial-gradient(ellipse at 30% 40%, rgba(201,179,126,.15), transparent 55%),
    linear-gradient(135deg, #1a1a1e 0%, #2a2a31 50%, #17171b 100%);
}
.hero::before{
  content:"";position:absolute;inset:0;pointer-events:none;
  background-image:url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' width='600' height='600'><filter id='t'><feTurbulence type='turbulence' baseFrequency='0.015' numOctaves='3' seed='5'/><feColorMatrix values='0 0 0 0 0.85 0 0 0 0 0.78 0 0 0 0 0.55 0 0 0 0.5 0'/></filter><rect width='100%' height='100%' filter='url(%23t)'/></svg>");
  opacity:.25;mix-blend-mode:overlay;
}
.hero::after{
  content:"";position:absolute;left:0;right:0;bottom:0;height:120px;
  background:linear-gradient(180deg,transparent,var(--slate-900));
  pointer-events:none;
}
.hero-inner{position:relative;z-index:2;max-width:920px;margin:0 auto;padding:0 24px;text-align:center}
.hero h1{margin-bottom:24px;background:linear-gradient(180deg,#fff,#c9b37e 80%,#8a7d5f);-webkit-background-clip:text;background-clip:text;color:transparent;text-shadow:0 2px 30px rgba(201,179,126,.2)}
.hero-sub{font-size:1.25rem;color:var(--marble-100);margin-bottom:40px;max-width:680px;margin-left:auto;margin-right:auto}
.hero-cta{display:flex;gap:16px;justify-content:center;flex-wrap:wrap}

/* Boutons */
.btn{
  display:inline-flex;align-items:center;gap:10px;padding:14px 28px;border-radius:var(--radius);
  font-weight:600;letter-spacing:.05em;font-size:.95rem;text-transform:uppercase;
  transition:transform var(--transition), box-shadow var(--transition), background var(--transition);
  cursor:pointer;border:1px solid transparent;line-height:1;
}
.btn-primary{background:linear-gradient(180deg,var(--gold-500),var(--gold-700));color:var(--slate-900);box-shadow:var(--shadow-sm)}
.btn-primary:hover{transform:translateY(-2px);box-shadow:var(--shadow-md);background:linear-gradient(180deg,var(--marble-50),var(--gold-400));color:var(--slate-900)}
.btn-ghost{background:transparent;color:var(--marble-50);border-color:rgba(232,228,216,.3)}
.btn-ghost:hover{border-color:var(--gold-400);color:var(--gold-400);transform:translateY(-2px)}
.btn-block{width:100%;justify-content:center}

/* Hero trust strip */
.trust-strip{
  position:relative;z-index:2;margin-top:56px;display:flex;gap:48px;justify-content:center;flex-wrap:wrap;
  padding:20px 24px;background:rgba(14,14,17,.6);border:1px solid rgba(201,179,126,.18);backdrop-filter:blur(10px);
  border-radius:var(--radius-lg);max-width:900px;margin-left:auto;margin-right:auto;
}
.trust-item{display:flex;flex-direction:column;align-items:center;gap:4px;color:var(--text-dim);font-size:.88rem}
.trust-item strong{color:var(--gold-400);font-size:1.8rem;font-family:var(--font-serif)}

/* Services */
.services-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(280px,1fr));gap:28px}
.service-card{
  background:linear-gradient(180deg, rgba(42,42,49,.6), rgba(23,23,27,.8));
  border:1px solid rgba(201,179,126,.12);
  border-radius:var(--radius-lg);
  padding:40px 32px;position:relative;overflow:hidden;
  transition:transform var(--transition), border-color var(--transition), box-shadow var(--transition);
  display:flex;flex-direction:column;
  color:inherit;text-decoration:none;
  cursor:pointer;
}
a.service-card:hover h3{color:var(--gold-400)}
.service-link{
  margin-top:auto;padding-top:20px;
  color:var(--gold-400);font-weight:600;font-size:.9rem;
  letter-spacing:.04em;text-transform:uppercase;
  display:inline-flex;align-items:center;gap:8px;
  transition:gap var(--transition), color var(--transition);
}
.service-link span{transition:transform var(--transition)}
.service-card:hover .service-link{color:var(--marble-50);gap:14px}
.service-card:hover .service-link span{transform:translateX(4px)}
.service-card::before{
  content:"";position:absolute;inset:0;background:radial-gradient(400px 200px at 50% 0%, rgba(201,179,126,.08), transparent 60%);opacity:0;transition:opacity var(--transition);
}
.service-card:hover{transform:translateY(-4px);border-color:rgba(201,179,126,.35);box-shadow:var(--shadow-md)}
.service-card:hover::before{opacity:1}
.service-icon{width:54px;height:54px;display:flex;align-items:center;justify-content:center;border:1px solid var(--gold-600);border-radius:50%;color:var(--gold-400);margin-bottom:22px}
.service-icon svg{width:26px;height:26px;stroke:currentColor;stroke-width:1.5;fill:none}
.service-card h3{margin-bottom:12px}
.service-card p{font-size:.95rem;margin-bottom:18px}
.service-card ul{display:flex;flex-direction:column;gap:8px}
.service-card li{color:var(--text-dim);font-size:.9rem;padding-left:18px;position:relative}
.service-card li::before{content:"◆";position:absolute;left:0;color:var(--gold-500);font-size:.6rem;top:6px}

/* Valeurs / pourquoi nous */
.values-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(240px,1fr));gap:32px}
.value{text-align:center;padding:24px}
.value-num{font-family:var(--font-serif);font-size:3rem;color:var(--gold-400);line-height:1;display:block;margin-bottom:12px}
.value h4{color:var(--marble-50);margin-bottom:10px;font-size:1.1rem;letter-spacing:.05em;text-transform:uppercase}
.value p{font-size:.95rem}

/* Split sections */
.split{display:grid;grid-template-columns:1fr 1fr;gap:60px;align-items:center}
.split-media{position:relative;border-radius:var(--radius-lg);overflow:hidden;box-shadow:var(--shadow-lg)}
.split-media::after{content:"";position:absolute;inset:0;box-shadow:inset 0 0 80px rgba(0,0,0,.5);pointer-events:none}
.split-media img,.split-media svg{width:100%;height:auto;display:block}
.split h2{margin-bottom:20px}
.split p{margin-bottom:18px}
.split ul{display:flex;flex-direction:column;gap:10px;margin-top:24px}
.split li{padding-left:28px;position:relative;color:var(--text)}
.split li::before{content:"✓";position:absolute;left:0;top:0;color:var(--gold-400);font-weight:700;font-size:1.1rem}

/* Portfolio / Galerie */
.gallery-filter{display:flex;gap:10px;justify-content:center;flex-wrap:wrap;margin-bottom:40px}
.filter-btn{padding:8px 20px;border:1px solid rgba(201,179,126,.25);border-radius:100px;color:var(--text-dim);font-size:.85rem;letter-spacing:.08em;text-transform:uppercase;transition:var(--transition)}
.filter-btn:hover{color:var(--gold-400);border-color:var(--gold-500)}
.filter-btn.active{background:var(--gold-500);color:var(--slate-900);border-color:var(--gold-500);font-weight:600}

.gallery{display:grid;grid-template-columns:repeat(auto-fill,minmax(300px,1fr));gap:20px}
.gallery-item{
  position:relative;overflow:hidden;border-radius:var(--radius-lg);cursor:zoom-in;
  aspect-ratio:4/3;background:var(--slate-700);
  border:1px solid rgba(201,179,126,.1);
  transition:transform var(--transition), border-color var(--transition);
}
.gallery-item:hover{transform:scale(1.02);border-color:var(--gold-500)}
.gallery-item img,.gallery-item svg{width:100%;height:100%;object-fit:cover;transition:transform .6s ease}
.gallery-item:hover img,.gallery-item:hover svg{transform:scale(1.08)}
.gallery-item-overlay{
  position:absolute;inset:0;background:linear-gradient(180deg,transparent 40%,rgba(14,14,17,.92));
  padding:20px;display:flex;flex-direction:column;justify-content:flex-end;
  opacity:0;transition:opacity var(--transition);
}
.gallery-item:hover .gallery-item-overlay{opacity:1}
.gallery-item-overlay h4{color:var(--marble-50);margin-bottom:4px;font-family:var(--font-serif)}
.gallery-item-overlay span{color:var(--gold-400);font-size:.82rem;letter-spacing:.08em;text-transform:uppercase}
.gallery-item-zoom{position:absolute;top:16px;right:16px;width:42px;height:42px;background:rgba(14,14,17,.6);border:1px solid rgba(201,179,126,.3);border-radius:50%;display:flex;align-items:center;justify-content:center;color:var(--gold-400);opacity:0;transition:opacity var(--transition)}
.gallery-item:hover .gallery-item-zoom{opacity:1}

/* Lightbox */
.lightbox{
  position:fixed;inset:0;background:rgba(0,0,0,.95);z-index:1000;display:none;
  align-items:center;justify-content:center;padding:60px 20px;
  animation:fade .3s ease;
}
.lightbox.open{display:flex}
.lightbox-img{max-width:92vw;max-height:86vh;border-radius:var(--radius);box-shadow:var(--shadow-lg);border:1px solid rgba(201,179,126,.2)}
.lightbox-caption{position:absolute;bottom:20px;left:0;right:0;text-align:center;color:var(--marble-50);font-family:var(--font-serif);font-size:1.1rem}
.lightbox-close,.lightbox-prev,.lightbox-next{
  position:absolute;background:rgba(42,42,49,.7);border:1px solid rgba(201,179,126,.3);
  color:var(--marble-50);width:52px;height:52px;border-radius:50%;display:flex;align-items:center;justify-content:center;
  font-size:1.5rem;transition:var(--transition);
}
.lightbox-close:hover,.lightbox-prev:hover,.lightbox-next:hover{background:var(--gold-500);color:var(--slate-900);border-color:var(--gold-500)}
.lightbox-close{top:24px;right:24px}
.lightbox-prev{left:24px;top:50%;transform:translateY(-50%)}
.lightbox-next{right:24px;top:50%;transform:translateY(-50%)}

@keyframes fade{from{opacity:0}to{opacity:1}}

/* Témoignages */
.testimonials{display:grid;grid-template-columns:repeat(auto-fit,minmax(300px,1fr));gap:24px}
.testimonial{
  background:linear-gradient(180deg, rgba(42,42,49,.4), rgba(23,23,27,.6));
  border:1px solid rgba(201,179,126,.12);
  border-radius:var(--radius-lg);padding:32px;position:relative;
}
.testimonial::before{
  content:"\201C";position:absolute;top:-10px;left:20px;
  font-family:var(--font-serif);font-size:5rem;color:var(--gold-600);line-height:1;
}
.testimonial p{font-style:italic;color:var(--text);margin-bottom:18px;font-size:.98rem}
.testimonial-author{display:flex;align-items:center;gap:12px}
.testimonial-author strong{color:var(--marble-50);display:block}
.testimonial-author span{color:var(--text-muted);font-size:.85rem}
.stars{color:var(--gold-400);letter-spacing:3px;font-size:.9rem;margin-bottom:10px}

/* FAQ */
.faq{max-width:860px;margin:0 auto}
.faq-item{
  border-bottom:1px solid rgba(201,179,126,.15);
  padding:20px 0;
}
.faq-q{
  display:flex;justify-content:space-between;align-items:center;gap:16px;cursor:pointer;
  font-family:var(--font-serif);font-size:1.25rem;color:var(--marble-50);padding:8px 0;
}
.faq-q::after{
  content:"+";font-family:var(--font-sans);font-size:1.8rem;color:var(--gold-400);
  transition:transform var(--transition);flex-shrink:0;
}
.faq-item.open .faq-q::after{transform:rotate(45deg)}
.faq-a{
  max-height:0;overflow:hidden;transition:max-height .5s ease;color:var(--text-dim);
}
.faq-item.open .faq-a{max-height:500px;padding-top:12px}

/* Video section */
.video-section{padding:80px 0}
.video-wrapper{
  max-width:960px;margin:0 auto;position:relative;
  border-radius:var(--radius-lg);overflow:hidden;
  border:1px solid rgba(201,179,126,.25);box-shadow:var(--shadow-lg);
  background:var(--slate-800);aspect-ratio:16/9;
}
.video-wrapper video,.video-wrapper iframe{width:100%;height:100%;display:block}
.video-placeholder{
  position:absolute;inset:0;display:flex;align-items:center;justify-content:center;flex-direction:column;
  background:linear-gradient(135deg, var(--slate-700), var(--slate-900));
  color:var(--text-dim);gap:16px;text-align:center;padding:40px;
}
.video-placeholder .play{
  width:88px;height:88px;border-radius:50%;background:rgba(201,179,126,.15);border:2px solid var(--gold-400);
  display:flex;align-items:center;justify-content:center;color:var(--gold-400);font-size:1.8rem;cursor:pointer;transition:var(--transition);
}
.video-placeholder .play:hover{background:var(--gold-500);color:var(--slate-900)}

/* CTA banner */
.cta-banner{
  background:
    linear-gradient(90deg, rgba(14,14,17,.82), rgba(14,14,17,.7)),
    linear-gradient(135deg, var(--gold-700), var(--slate-700));
  padding:72px 32px;border-radius:var(--radius-lg);text-align:center;
  border:1px solid rgba(201,179,126,.3);
}
.cta-banner h2{margin-bottom:16px;background:linear-gradient(180deg,#fff,var(--gold-400));-webkit-background-clip:text;background-clip:text;color:transparent}
.cta-banner p{color:var(--marble-100);margin-bottom:28px;font-size:1.1rem}

/* Contact */
.contact-grid{display:grid;grid-template-columns:1.1fr .9fr;gap:56px;align-items:start}
.contact-info{display:flex;flex-direction:column;gap:22px;margin-top:30px}
.contact-info-item{display:flex;gap:18px;align-items:flex-start}
.contact-info-icon{
  width:48px;height:48px;flex-shrink:0;border-radius:50%;
  border:1px solid var(--gold-600);color:var(--gold-400);
  display:flex;align-items:center;justify-content:center;
}
.contact-info-item h4{color:var(--marble-50);margin-bottom:4px;font-family:var(--font-sans);font-size:.85rem;letter-spacing:.15em;text-transform:uppercase}
.contact-info-item p,.contact-info-item a{color:var(--text);font-size:1rem}

.form{
  background:linear-gradient(180deg, rgba(42,42,49,.45), rgba(23,23,27,.6));
  border:1px solid rgba(201,179,126,.18);
  border-radius:var(--radius-lg);padding:36px;
}
.form-row{display:grid;grid-template-columns:1fr 1fr;gap:16px;margin-bottom:16px}
.form-field{margin-bottom:16px}
.form-field label{display:block;color:var(--text);font-size:.85rem;letter-spacing:.1em;text-transform:uppercase;margin-bottom:8px;font-weight:500}
.form-field label .req{color:var(--gold-400)}
.form-field input,.form-field select,.form-field textarea{
  width:100%;padding:14px 16px;background:rgba(14,14,17,.7);
  border:1px solid rgba(201,179,126,.18);border-radius:var(--radius);
  color:var(--marble-50);font-family:inherit;font-size:1rem;transition:var(--transition);
}
.form-field input:focus,.form-field select:focus,.form-field textarea:focus{
  outline:none;border-color:var(--gold-400);background:rgba(14,14,17,.9);
  box-shadow:0 0 0 3px rgba(201,179,126,.15);
}
.form-field textarea{resize:vertical;min-height:140px}
.form-field select{appearance:none;background-image:url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' width='12' height='8' viewBox='0 0 12 8'><path d='M1 1l5 5 5-5' stroke='%23c9b37e' stroke-width='2' fill='none'/></svg>");background-repeat:no-repeat;background-position:right 16px center;padding-right:42px}
.form-field .hint{color:var(--text-muted);font-size:.82rem;margin-top:6px}
.form-consent{display:flex;gap:10px;align-items:flex-start;margin:20px 0;font-size:.88rem;color:var(--text-dim)}
.form-consent input{width:18px;height:18px;accent-color:var(--gold-500);margin-top:3px;flex-shrink:0}
.form-consent a{color:var(--gold-400);text-decoration:underline}

/* reCAPTCHA v2 — widget "Je ne suis pas un robot" */
.captcha-field{display:flex;justify-content:center;margin:20px 0}
.captcha-field .g-recaptcha{transform-origin:center center}
@media (max-width:420px){
  /* Réduction légère du widget sur très petits écrans pour qu'il tienne */
  .captcha-field .g-recaptcha{transform:scale(.9)}
}

/* Footer */
.footer{
  background:var(--slate-900);padding:72px 0 24px;
  border-top:1px solid rgba(201,179,126,.12);
  margin-top:80px;
}
.footer-map-block{
  display:grid;grid-template-columns:1.1fr 1.4fr;gap:24px;align-items:stretch;
  margin-bottom:56px;padding-bottom:48px;border-bottom:1px solid rgba(201,179,126,.1);
}
.footer-address{
  padding:28px 30px;
  background:linear-gradient(180deg, rgba(42,42,49,.55), rgba(23,23,27,.7));
  border:1px solid rgba(201,179,126,.18);
  border-radius:var(--radius-lg);
  display:flex;flex-direction:column;justify-content:center;
}
.footer-address h5{
  color:var(--gold-400);font-family:var(--font-serif);font-size:1.5rem;
  margin-bottom:18px;letter-spacing:normal;text-transform:none;font-weight:600;
}
.footer-address .addr{
  font-family:var(--font-serif);font-size:1.15rem;color:var(--marble-50);line-height:1.5;margin-bottom:18px;
}
.footer-address .addr strong{color:var(--gold-400);display:block;margin-bottom:4px;font-size:.95rem;letter-spacing:.15em;text-transform:uppercase;font-family:var(--font-sans)}
.footer-address-actions{display:flex;gap:12px;flex-wrap:wrap;margin-top:8px}
.footer-address-actions a{
  display:inline-flex;align-items:center;gap:6px;padding:8px 14px;
  border:1px solid rgba(201,179,126,.3);border-radius:var(--radius);
  font-size:.85rem;color:var(--marble-50);transition:var(--transition);
}
.footer-address-actions a:hover{background:var(--gold-500);color:var(--slate-900);border-color:var(--gold-500)}
.footer-map{
  position:relative;border-radius:var(--radius-lg);overflow:hidden;
  border:1px solid rgba(201,179,126,.25);min-height:240px;
  box-shadow:var(--shadow-md);background:var(--slate-700);
}
.footer-map iframe{
  width:100%;height:100%;border:0;min-height:240px;display:block;
  filter:grayscale(.35) contrast(1.08) brightness(.92);
}
.footer-map::after{
  content:"";position:absolute;inset:0;pointer-events:none;
  box-shadow:inset 0 0 60px rgba(14,14,17,.4);
}
@media (max-width: 720px){
  .footer-map-block{grid-template-columns:1fr;gap:16px;margin-bottom:40px;padding-bottom:32px}
  .footer-map{min-height:220px}
  .footer-address{padding:22px}
}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr;gap:48px;margin-bottom:48px}
.footer-brand{display:flex;flex-direction:column;gap:16px}
.footer-brand p{font-size:.92rem;color:var(--text-dim)}
.footer-col h5{color:var(--marble-50);font-family:var(--font-sans);font-size:.85rem;letter-spacing:.2em;text-transform:uppercase;margin-bottom:18px}
.footer-col ul{display:flex;flex-direction:column;gap:10px}
.footer-col a{color:var(--text-dim);font-size:.92rem}
.footer-col a:hover{color:var(--gold-400)}
.footer-bottom{display:flex;justify-content:space-between;align-items:center;padding-top:24px;border-top:1px solid rgba(201,179,126,.1);font-size:.85rem;color:var(--text-muted);flex-wrap:wrap;gap:12px}
.social{display:flex;gap:12px}
.social a{width:40px;height:40px;border-radius:50%;border:1px solid rgba(201,179,126,.2);display:flex;align-items:center;justify-content:center;color:var(--text-dim);transition:var(--transition)}
.social a:hover{color:var(--gold-400);border-color:var(--gold-500);transform:translateY(-2px)}

/* Page header (sub pages) */
.page-hero{
  padding:140px 0 80px;text-align:center;position:relative;overflow:hidden;
  background:
    linear-gradient(180deg, rgba(14,14,17,.6), rgba(14,14,17,.9)),
    linear-gradient(135deg, var(--slate-700) 0%, var(--slate-800) 100%);
}
.page-hero::before{
  content:"";position:absolute;inset:0;
  background-image:url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' width='600' height='600'><filter id='t'><feTurbulence type='turbulence' baseFrequency='0.012' numOctaves='3' seed='8'/><feColorMatrix values='0 0 0 0 0.85 0 0 0 0 0.78 0 0 0 0 0.55 0 0 0 0.35 0'/></filter><rect width='100%' height='100%' filter='url(%23t)'/></svg>");
  opacity:.4;mix-blend-mode:overlay;pointer-events:none;
}
.page-hero h1{position:relative;background:linear-gradient(180deg,#fff,#c9b37e);-webkit-background-clip:text;background-clip:text;color:transparent;margin-bottom:12px}
.page-hero .breadcrumb{position:relative;color:var(--text-dim);font-size:.88rem;letter-spacing:.08em}
.page-hero .breadcrumb a{color:var(--gold-400)}

/* Utilitaires */
.center{text-align:center}
.reveal{opacity:0;transform:translateY(24px);transition:opacity .8s ease,transform .8s ease}
.reveal.visible{opacity:1;transform:translateY(0)}

.alert{padding:16px 20px;border-radius:var(--radius);margin-bottom:20px;font-size:.95rem}
.alert-success{background:rgba(111,168,118,.1);border:1px solid rgba(111,168,118,.3);color:#9cc6a1}
.alert-error{background:rgba(192,90,75,.1);border:1px solid rgba(192,90,75,.3);color:#e29a90}

/* Responsive */
@media (max-width: 960px){
  .split{grid-template-columns:1fr}
  .contact-grid{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
}
/* Overlay sombre derrière le drawer mobile (hors media query pour être toujours dans le DOM) */
.nav-overlay{
  position:fixed;inset:0;background:rgba(14,14,17,.65);
  backdrop-filter:blur(4px);-webkit-backdrop-filter:blur(4px);
  opacity:0;visibility:hidden;transition:opacity .35s ease, visibility .35s ease;
  z-index:195;pointer-events:none;
}
body.nav-open .nav-overlay{opacity:1;visibility:visible;pointer-events:auto}

@media (max-width: 720px){
  :root{--nav-h:72px}
  .section{padding:72px 0}
  .burger{display:block;z-index:210}

  /* IMPORTANT: le backdrop-filter sur .nav crée un nouveau containing block,
     ce qui empêche position:fixed de prendre la hauteur du viewport.
     On le neutralise sur mobile pour que le drawer puisse s'étendre. */
  .nav{backdrop-filter:none;-webkit-backdrop-filter:none;background:rgba(14,14,17,.96)}

  /* Drawer latéral caché par défaut, à droite */
  .nav-links{
    position:fixed;top:0;right:0;
    height:100vh;height:100dvh;
    width:min(82vw, 340px);
    background:linear-gradient(180deg, var(--slate-800) 0%, var(--slate-900) 100%);
    border-left:1px solid rgba(201,179,126,.18);
    box-shadow:-16px 0 40px rgba(0,0,0,.55);
    display:flex;flex-direction:column;align-items:stretch;justify-content:flex-start;
    gap:4px;padding:calc(var(--nav-h) + 24px) 28px 32px;
    transform:translateX(105%);transition:transform .45s cubic-bezier(.2,.8,.2,1);
    overflow-y:auto;-webkit-overflow-scrolling:touch;
    z-index:200;
  }
  .nav.open .nav-links{transform:translateX(0)}

  /* Liens du drawer : larges, bien espacés, séparés par un filet doré */
  .nav-links a{
    font-size:1.15rem;width:100%;padding:16px 4px;
    border-bottom:1px solid rgba(201,179,126,.08);
    letter-spacing:.04em;
  }
  .nav-links a:last-of-type{border-bottom:none}
  .nav-links a::after{display:none}
  .nav-links a.active{color:var(--gold-400)}

  /* CTA en bas du drawer : style bouton plein */
  .nav-cta{
    width:100%;text-align:center;justify-content:center;
    margin-top:16px;padding:14px 20px;
  }

  /* Bloquer le scroll du body quand le drawer est ouvert */
  body.nav-open{overflow:hidden}

  .form-row{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr;gap:32px}
  .topbar-inner{justify-content:center;text-align:center;flex-wrap:wrap;gap:6px}
  .nav-logo img{height:44px}
  .hero{min-height:76vh}
  .hero h1{font-size:2rem}
  .hero-sub{font-size:1.05rem}
  .hero-cta{flex-direction:column;align-items:stretch}
  .hero-cta .btn{width:100%;justify-content:center}
  .trust-strip{gap:16px;padding:16px;flex-wrap:wrap;justify-content:center}
  .trust-item{min-width:44%}
  .trust-item strong{font-size:1.4rem}
  .cta-banner{padding:48px 20px}
  .cta-banner h2{font-size:1.5rem}
  .services-grid{gap:20px}
  .service-card{padding:30px 24px}
  .gallery{grid-template-columns:1fr 1fr;gap:12px}
  .gallery-filter{gap:8px;flex-wrap:wrap;justify-content:center}
  .filter-btn{padding:8px 14px;font-size:.85rem}
  .lightbox-prev,.lightbox-next{font-size:2rem;padding:12px 18px}
  .page-hero{padding:100px 0 56px}
  .page-hero h1{font-size:2rem}
  .footer-bottom{flex-direction:column;text-align:center}
  .scroll-top{width:46px;height:46px;bottom:18px;right:18px;font-size:1.2rem}
}

@media (max-width: 420px){
  .gallery{grid-template-columns:1fr}
  .hero h1{font-size:1.7rem}
  .section-header h2,.values-grid .value-num{font-size:1.6rem}
  .nav-logo img{height:38px}
  .topbar{font-size:.75rem}
}

/* ==========================================================================
   DYNAMISME — animations, effets 3D, interactions
   ========================================================================== */

/* Page fade-in au chargement */
body{animation:pageFade .7s ease both}
@keyframes pageFade{from{opacity:0}to{opacity:1}}

/* Barre de progression du scroll */
.scroll-progress{
  position:fixed;top:0;left:0;height:3px;width:0%;z-index:200;
  background:linear-gradient(90deg, var(--gold-700), var(--gold-400), var(--marble-50));
  box-shadow:0 0 12px rgba(201,179,126,.6);
  transition:width .12s linear;
}

/* Bouton retour en haut */
.scroll-top{
  position:fixed;bottom:24px;right:24px;width:52px;height:52px;
  border-radius:50%;background:linear-gradient(180deg,var(--gold-500),var(--gold-700));
  color:var(--slate-900);display:flex;align-items:center;justify-content:center;
  font-size:1.4rem;cursor:pointer;z-index:99;
  box-shadow:0 6px 24px rgba(0,0,0,.5);
  opacity:0;visibility:hidden;transform:translateY(14px) scale(.9);
  transition:opacity .4s ease, visibility .4s ease, transform .4s ease, background .3s ease;
}
.scroll-top.visible{opacity:1;visibility:visible;transform:translateY(0) scale(1)}
.scroll-top:hover{background:linear-gradient(180deg,var(--marble-50),var(--gold-400));transform:translateY(-3px) scale(1.06);box-shadow:0 10px 28px rgba(201,179,126,.4)}

/* Shimmer marbre sur le H1 hero */
.hero h1{background-size:200% auto;animation:heroShimmer 7s ease-in-out infinite}
@keyframes heroShimmer{
  0%,100%{background-position:0% 50%}
  50%{background-position:100% 50%}
}

/* Ken Burns très léger sur le fond hero */
.hero::before{animation:kenBurns 32s ease-in-out infinite alternate}
@keyframes kenBurns{
  0%{transform:scale(1) translate(0,0)}
  100%{transform:scale(1.08) translate(-10px,-8px)}
}

/* Marbre de fond qui respire */
.marble-bg::before{animation:marbleDrift 45s linear infinite}
@keyframes marbleDrift{
  0%{transform:translate(0,0)}
  50%{transform:translate(-18px,-12px)}
  100%{transform:translate(0,0)}
}

/* Stagger reveal : chaque élément arrive après le précédent */
.reveal{transition-delay:calc(var(--stagger,0) * 90ms)}

/* Variantes reveal — gauche/droite */
.reveal-left{opacity:0;transform:translateX(-48px);transition:opacity .8s ease,transform .8s ease}
.reveal-left.visible{opacity:1;transform:translateX(0)}
.reveal-right{opacity:0;transform:translateX(48px);transition:opacity .8s ease,transform .8s ease}
.reveal-right.visible{opacity:1;transform:translateX(0)}

/* Service card — effet tilt 3D */
.service-card{will-change:transform;transform-style:preserve-3d}
.service-card::after{
  content:"";position:absolute;top:0;left:0;right:0;height:2px;
  background:linear-gradient(90deg,transparent,var(--gold-400),transparent);
  transform:scaleX(0);transform-origin:left;transition:transform .6s ease;
}
.service-card:hover::after{transform:scaleX(1)}
.service-icon{transition:transform .5s cubic-bezier(.2,.8,.2,1), background .4s ease, border-color .4s ease}
.service-card:hover .service-icon{transform:rotate(-6deg) scale(1.12);background:rgba(201,179,126,.12);border-color:var(--gold-400)}

/* Trust strip — items interactifs */
.trust-item{transition:transform .35s ease}
.trust-item:hover{transform:translateY(-5px)}
.trust-item strong{transition:text-shadow .4s ease,color .4s ease;display:inline-block}
.trust-item:hover strong{text-shadow:0 0 24px rgba(201,179,126,.55);color:var(--marble-50)}

/* Value num — animation interactive */
.value-num{display:inline-block;transition:transform .4s ease,color .4s ease,text-shadow .4s ease}
.value:hover .value-num{transform:scale(1.1);color:var(--marble-50);text-shadow:0 0 22px rgba(201,179,126,.5)}
.value{transition:transform .4s ease}
.value:hover{transform:translateY(-4px)}

/* Testimonial — hover lift */
.testimonial{transition:transform .4s ease,border-color .4s ease,box-shadow .4s ease}
.testimonial:hover{transform:translateY(-5px);border-color:rgba(201,179,126,.35);box-shadow:0 12px 32px rgba(0,0,0,.3)}

/* Logo nav — pulse doux au hover */
.nav-logo img{transition:transform .45s cubic-bezier(.2,.8,.2,1), filter .45s ease}
.nav-logo:hover img{transform:scale(1.06) rotate(-1deg);filter:drop-shadow(0 4px 18px rgba(201,179,126,.5))}

/* CTA nav — halo pulsé discret */
.nav-cta{animation:ctaHalo 3.5s ease-in-out infinite}
@keyframes ctaHalo{
  0%,100%{box-shadow:0 0 0 0 rgba(201,179,126,.45)}
  50%{box-shadow:0 0 0 10px rgba(201,179,126,0)}
}

/* Ripple au clic sur boutons */
.btn{position:relative;overflow:hidden;isolation:isolate}
.btn::before{
  content:"";position:absolute;top:50%;left:50%;width:0;height:0;
  border-radius:50%;background:rgba(255,255,255,.22);
  transform:translate(-50%,-50%);z-index:-1;
  transition:width .6s ease, height .6s ease;
}
.btn:active::before{width:320%;height:320%;transition:width .4s ease, height .4s ease}

/* Gallery — effet image subtil */
.gallery-item img,.gallery-item svg{will-change:transform}
.gallery-item{transition:transform .5s cubic-bezier(.2,.8,.2,1), border-color .4s ease, box-shadow .4s ease}
.gallery-item:hover{box-shadow:0 10px 30px rgba(0,0,0,.35)}

/* Section kicker — underline animé qui s'étend */
.section-kicker{position:relative;padding-bottom:4px}
.section-kicker::after{
  content:"";position:absolute;left:0;bottom:0;width:0;height:1px;
  background:var(--gold-500);transition:width .8s ease;
}
.reveal.visible .section-kicker::after,.section-header.reveal.visible .section-kicker::after{width:40px}

/* FAQ — ouverture plus fluide */
.faq-item{transition:background .3s ease}
.faq-item.open{background:rgba(201,179,126,.03)}
.faq-q{transition:color .3s ease}
.faq-item:hover .faq-q{color:var(--gold-400)}

/* Reduced motion — tout désactivé */
@media (prefers-reduced-motion: reduce){
  *,*::before,*::after{animation-duration:0s!important;animation-iteration-count:1!important;transition-duration:0s!important}
  html{scroll-behavior:auto}
  .hero::before,.marble-bg::before,.nav-cta,body{animation:none!important}
  .service-card,.trust-item,.value,.testimonial,.nav-logo img,.scroll-top{transform:none!important}
}