*{
  margin:0;
  padding:0;
  box-sizing:border-box;
  font-family:Arial, sans-serif;
}

body{
  overflow-x:hidden;   /* solo bloquea horizontal */
  overflow-y:auto;     /* permite scroll vertical */
  background:black;
}


#scene{
  position:relative;
  width:100vw;
  height:100vh;
  overflow:hidden;
}

/* 🌌 Fondo parallax */
.bg-layer{
  position:absolute;
  width:100%;
  height:200%;
  left:0;
  top:0;
  background-size:cover;
  background-position:center;
  animation: moveUp 40s linear infinite;
}

.bg1{
  background-image:url("https://images.unsplash.com/photo-1500530855697-b586d89ba3ee?q=80&w=1600");
  opacity:0.6;
}

.bg2{
  background-image:url("https://images.unsplash.com/photo-1501785888041-af3ef285b470?q=80&w=1600");
  opacity:0.3;
  animation-duration:70s;
}

@keyframes moveUp{
  from{transform:translateY(0);}
  to{transform:translateY(-50%);}
}

/* ✨ Partículas */
#particles{
  position:absolute;
  top:0;
  left:0;
  width:100%;
  height:100%;
  z-index:2;
}

/* 🎬 Texto principal */
.content{
  position:absolute;
  top:50%;
  left:50%;
  transform:translate(-50%,-50%);
  text-align:center;
  color:white;
  z-index:3;
}

.content h1{
  font-size:64px;
  line-height:1.1;
  background:linear-gradient(90deg,#00f2ff,#ff00ff,#00ff88);
  -webkit-background-clip:text;
  -webkit-text-fill-color:transparent;
  text-shadow:0 0 30px rgba(0,255,255,.4);
  animation: glow 3s infinite alternate;
}

@keyframes glow{
  from{text-shadow:0 0 20px rgba(0,255,255,.4);}
  to{text-shadow:0 0 50px rgba(255,0,255,.6);}
}

.content p{
  margin:15px 0;
  font-size:20px;
  opacity:.9;
}

.content button{
  padding:12px 30px;
  border:none;
  border-radius:30px;
  background:linear-gradient(90deg,#00f2ff,#ff00ff);
  color:black;
  font-weight:bold;
  font-size:16px;
  cursor:pointer;
  transition:.3s;
}

.content button:hover{
  transform:scale(1.1);
}

/* 🎞️ Carrusel horizontal */
.carousel{
  position:absolute;
  bottom:40px;
  width:100%;
  overflow:hidden;
  z-index:3;
}

.track{
  display:flex;
  gap:30px;
  animation: slide 25s linear infinite;
}

.track img{
  width:220px;
  height:140px;
  object-fit:cover;
  border-radius:15px;
  box-shadow:0 20px 50px rgba(0,0,0,.6);
  transition:.3s;
}

.track img:hover{
  transform:scale(1.1);
}

@keyframes slide{
  from{transform:translateX(-30%);}
  to{transform:translateX(100%);}
}

#voiceBtn{
  margin-top:15px;
  padding:10px 20px;
  border-radius:30px;
  border:1px solid rgba(255,255,255,.3);
  background:rgba(0,0,0,.4);
  color:white;
  font-size:14px;
  cursor:pointer;
  backdrop-filter:blur(6px);
  transition:all .3s ease;
}

#voiceBtn:hover{
  background:rgba(255,255,255,.15);
  transform:scale(1.05);
}