/* Fondo animado suave */
body {
  margin: 0;
  font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
  background-color: #1a1a1a;
  color: #f8f8f8;
  position: relative;
}

.background-animation {
  position: fixed;
  width: 100%;
  height: 100%;
  background: radial-gradient(circle, rgba(255, 70, 70, 0.08) 1px, transparent 1px);
  background-size: 60px 60px;
  z-index: -1;
  animation: pulse 60s linear infinite;
  opacity: 0.3;
}

@keyframes pulse {
  0% { background-position: 0 0; }
  100% { background-position: 100px 100px; }
}

.container {
  max-width: 850px;
  margin: 80px auto;
  padding: 60px;
  background-color: rgba(30, 30, 30, 0.95);
  border-radius: 20px;
  box-shadow: 0 0 15px rgba(255, 0, 0, 0.2);
}

header h1 {
  text-align: center;
  font-size: 2.8em;
  color: #ff4d4d;
  transition: transform 0.3s ease-in-out;
}

header h1:hover {
  transform: scale(1.05);
  color: #ff6666;
}

.subtitulo {
  text-align: center;
  font-size: 1.2em;
  color: #bbb;
  margin-top: -15px;
  margin-bottom: 30px;
}

section {
  margin-bottom: 40px;
  padding: 20px;
  background-color: rgba(50, 50, 50, 0.9);
  border-left: 5px solid #ff4d4d;
  border-radius: 10px;
}

h2 {
  color: #ff4d4d;
  font-size: 1.6em;
  margin-bottom: 10px;
}

ul {
  list-style: none;
  padding-left: 0;
}

ul li::before {
  content: "•";
  color: #ff4d4d;
  margin-right: 10px;
}

a {
  color: #ff8080;
  text-decoration: none;
}

a:hover {
  text-decoration: underline;
}

footer {
  text-align: center;
  font-size: 0.9em;
  color: #888;
  margin-top: 40px;
}