body {
  margin: 0;
  font-family: 'Segoe UI', sans-serif;
  background: linear-gradient(to right, #0f2027, #203a43, #2c5364);
  color: #fff;
  overflow-x: hidden;
}
.hero {
  height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
}
.content {
  animation: fadeIn 2s ease-in;
  max-width: 700px;
  padding: 20px;
}
.logo {
  width: 100px;
  margin-bottom: 20px;
}
h1 {
  font-size: 2em;
  margin-bottom: 10px;
}
p {
  font-size: 1.2em;
}
audio {
  margin: 20px 0;
}
.btn {
  background: #1e90ff;
  color: white;
  padding: 12px 20px;
  margin: 5px;
  border: none;
  border-radius: 8px;
  font-size: 1em;
  text-decoration: none;
  transition: transform 0.3s ease;
  display: inline-block;
}
.btn:hover {
  transform: scale(1.05);
}
.glow {
  box-shadow: 0 0 10px #00ffff, 0 0 20px #00ffff;
}
.register-container {
  max-width: 500px;
  margin: 80px auto;
  padding: 20px;
  background: rgba(0,0,0,0.4);
  border-radius: 10px;
  text-align: center;
}
@keyframes fadeIn {
  from {opacity: 0;}
  to {opacity: 1;}
}