*{
  margin:0;
  padding:0;
  box-sizing:border-box;
}

body{
  font-family:-apple-system,BlinkMacSystemFont,sans-serif;
  background:#050505;
  color:white;
  overflow-x:hidden;
}

/* NAVBAR */
.navbar{
  position:fixed;
  width:100%;
  z-index:1000;
  transition:.4s cubic-bezier(.22,.61,.36,1);
}

.navbar.scrolled{
  backdrop-filter:blur(20px);
  background:rgba(10,10,10,.6);
}

.nav-container{
  display:flex;
  justify-content:space-between;
  align-items:center;
  padding:1.2rem 3rem;
  transition:.3s;
}

.navbar.scrolled .nav-container{
  padding:.8rem 3rem;
}

nav{
  display:flex;
  gap:2rem;
  align-items:center;
}

nav a{
  text-decoration:none;
  color:white;
  font-size:.9rem;
  opacity:.8;
  transition:.3s;
  cursor:pointer;
}

nav a:hover{
  opacity:1;
}

.contact-btn{
  padding:8px 18px;
  border:1px solid rgba(255,255,255,.4);
  border-radius:20px;
}

/* HERO */
.hero{
  height:100vh;
  position:relative;
  display:flex;
  align-items:center;
  justify-content:center;
  text-align:center;
}

#webgl{
  position:absolute;
  inset:0;
  z-index:0;
}

.hero-content{
  position:relative;
  z-index:2;
  opacity:0;
  transform:translateY(40px);
  animation:fadeUp 1.5s cubic-bezier(.22,.61,.36,1) forwards;
}

.hero h1{
  font-size:4rem;
  font-weight:500;
  margin-bottom:1rem;
}

.hero p{
  opacity:.7;
}

@keyframes fadeUp{
  to{
    opacity:1;
    transform:translateY(0);
  }
}


/* BOTÓN SONIDO */
.sound-btn{
  position:absolute;
  bottom:40px;
  right:40px;
  z-index:5;
  background:rgba(255,255,255,0.1);
  border:1px solid rgba(255,255,255,0.3);
  backdrop-filter:blur(10px);
  color:white;
  font-size:18px;
  padding:12px 16px;
  border-radius:50px;
  cursor:pointer;
  transition:0.3s;
}

.sound-btn:hover{
  background:rgba(255,255,255,0.25);
}


.sound-btn{
  position:absolute;
  bottom:40px;
  right:40px;
  z-index:5;
  background:rgba(255,255,255,0.08);
  border:1px solid rgba(255,255,255,0.3);
  backdrop-filter:blur(15px);
  color:white;
  font-size:18px;
  padding:14px 18px;
  border-radius:50px;
  cursor:pointer;
  transition:0.3s ease;
}

.sound-btn:hover{
  background:rgba(255,255,255,0.25);
  transform:scale(1.05);
}

/* LOGO GRANDE + GRADIENTE */
.logo{
  font-size:1.6rem;
  font-weight:700;
  letter-spacing:1px;

  background:linear-gradient(90deg,#007BFF,#00FFFF,#FF00FF);
  -webkit-background-clip:text;
  -webkit-text-fill-color:transparent;
}


/* HOVER MENÚ FUTURISTA */
nav a{
  position:relative;
  transition:0.35s;
}

nav a:hover{
  background:linear-gradient(90deg,#007BFF,#00FFFF,#FF00FF);
  -webkit-background-clip:text;
  -webkit-text-fill-color:transparent;
}


/* FOOTER */
.footer{
  position:relative;
  text-align:center;
  padding:40px 20px;
  font-size:0.85rem;
  opacity:0.6;
  background:transparent;
  z-index:2;
}