.hero{
  position:relative;
  width:100%;
  min-height:100vh;
  overflow:hidden;
  background:var(--charbon);
  display:flex;
  flex-direction:column;
  align-items:center;
  justify-content:center;
  isolation:isolate;
}

/* Slider d'images en fond, sous les textures/trames et le calque de bruit existants */
.hero-slides{
  position:absolute;
  inset:0;
  z-index:-1;
}
.hero-slides img{
  position:absolute;
  inset:0;
  width:100%;
  height:100%;
  object-fit:cover;
  opacity:0;
  filter:grayscale(0.4) contrast(1.15) brightness(0.55);
  transition:opacity 1.8s ease;
}
.hero-slides img.active{opacity:1;}

.hero::before{
  content:"";
  position:absolute;
  inset:0;
  z-index:0;
  opacity:0.35;
  background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='200' height='200'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='2' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");
  mix-blend-mode:overlay;
}

.hero::after{
  content:"";
  position:absolute;
  inset:0;
  z-index:1;
  background:
    radial-gradient(ellipse 120% 60% at 50% -10%, rgba(201,162,39,0.10), transparent 60%),
    linear-gradient(180deg, rgba(0,0,0,0) 0%, rgba(0,0,0,0.55) 100%);
}

.grid-lines{
  position:absolute;
  inset:0;
  z-index:1;
  background-image: repeating-linear-gradient(90deg, rgba(232,228,221,0.04) 0px, rgba(232,228,221,0.04) 1px, transparent 1px, transparent 120px);
  pointer-events:none;
}

.hero-content{
  position:relative;
  z-index:2;
  text-align:center;
  padding:0 24px;
  display:flex;
  flex-direction:column;
  align-items:center;
}

.hero-content .eyebrow{
  margin-bottom:24px;
  opacity:0;
  animation:fadeUp 0.8s ease forwards;
}

.logo{
  font-family:var(--font-display);
  font-weight:700;
  font-size:clamp(56px, 12vw, 140px);
  letter-spacing:0.02em;
  text-transform:uppercase;
  color:var(--blanc-casse);
  line-height:0.95;
  opacity:0;
  animation:fadeUp 1s ease 0.15s forwards;
  text-shadow: 0 0 40px rgba(201,162,39,0.06);
}

.logo span{
  display:block;
  color:transparent;
  -webkit-text-stroke:1.5px var(--acier-clair);
  font-size:clamp(28px, 6vw, 64px);
  letter-spacing:0.15em;
  margin-top:8px;
}

.slogan{
  margin-top:32px;
  font-family:var(--font-body);
  font-weight:500;
  font-size:clamp(13px, 1.4vw, 16px);
  letter-spacing:0.28em;
  text-transform:uppercase;
  color:var(--acier-clair);
  opacity:0;
  animation:fadeUp 1s ease 0.35s forwards;
}

.slogan::before, .slogan::after{
  content:"—";
  color:var(--rouille);
  margin:0 14px;
}

.cta-row{
  margin-top:56px;
  display:flex;
  gap:16px;
  flex-wrap:wrap;
  justify-content:center;
  opacity:0;
  animation:fadeUp 1s ease 0.5s forwards;
}

.scroll-indicator{
  position:absolute;
  bottom:36px;
  left:50%;
  transform:translateX(-50%);
  z-index:2;
  display:flex;
  flex-direction:column;
  align-items:center;
  gap:10px;
  opacity:0;
  animation:fadeUp 1s ease 0.7s forwards;
}
.scroll-indicator .line{
  width:1px;
  height:44px;
  background:linear-gradient(180deg, var(--rouille), transparent);
  animation:scrollPulse 2s ease-in-out infinite;
}
.scroll-indicator span{
  font-family:var(--font-display);
  font-size:10px;
  letter-spacing:0.3em;
  text-transform:uppercase;
  color:var(--acier-clair);
}

.light-flicker{
  position:absolute;
  top:0; left:0; right:0;
  height:2px;
  z-index:3;
  background:var(--jaune-ind);
  opacity:0;
  animation:flicker 8s infinite;
  pointer-events:none;
}

@keyframes scrollPulse{
  0%,100%{transform:scaleY(1); opacity:0.6;}
  50%{transform:scaleY(0.6); opacity:1;}
}
@keyframes flicker{
  0%,93%,95%,100%{opacity:0;}
  94%{opacity:0.5;}
  96%{opacity:0.15;}
}

@media (prefers-reduced-motion: reduce){
  .hero-content .eyebrow,.logo,.slogan,.cta-row,.scroll-indicator{animation:none; opacity:1;}
  .light-flicker{animation:none; display:none;}
  .scroll-indicator .line{animation:none;}
}

@media (max-width:600px){
  .cta-row{flex-direction:column; width:100%; max-width:280px;}
  .btn{width:100%;}
}