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

body {
  font-family: 'Segoe UI', sans-serif;
  height: 100vh;
  overflow: hidden;
  position: relative;
  background: #0f0f1f;
  color: #fff;
}

/* Fondo animado */
.background {
  position: absolute;
  width: 100%;
  height: 100%;
  background: radial-gradient(circle at center, #00ffe0 0%, #0f0f1f 70%);
  animation: pulse 10s infinite alternate;
  z-index: -1;
}

@keyframes pulse {
  0% {
    transform: scale(1);
    filter: blur(0px);
  }
  100% {
    transform: scale(1.2);
    filter: blur(10px);
  }
}

/* Contenido principal */
.content {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  height: 100%;
  text-align: center;
  animation: fadeIn 2s ease-out forwards;
  opacity: 0;
}

@keyframes fadeIn {
  to {
    opacity: 1;
  }
}

h1 {
  font-size: 4.5rem;
  text-transform: uppercase;
  letter-spacing: 3px;
  animation: flicker 2s infinite;
  transition: transform 0.3s ease;
}

@keyframes flicker {
  0%, 100% {
    opacity: 1;
  }
  50% {
    opacity: 0.7;
  }
}

.subtitle {
  font-size: 1.2rem;
  margin-top: 1rem;
  color: #aaa;
}

/* Botón interactivo */
button {
  margin-top: 2rem;
  padding: 1rem 2rem;
  font-size: 1rem;
  background: #00ffe0;
  color: #0f0f1f;
  border: none;
  border-radius: 8px;
  cursor: pointer;
  transition: transform 0.3s ease, background 0.3s ease;
}

button:hover {
  transform: scale(1.1);
  background: #00bfa0;
}

/* Footer */
footer {
  position: absolute;
  bottom: 10px;
  width: 100%;
  text-align: center;
  font-size: 0.8rem;
  color: #666;
}