body {
  margin: 0;
  font-family: 'Segoe UI', sans-serif;
  background-color: #121212;
  color: #f0f0f0;
  line-height: 1.6;
}

.encabezado {
  background: linear-gradient(to right, #4b0082, #93e22b);
  padding: 60px 20px;
  text-align: center;
  color: white;
}

.encabezado h1 {
  font-size: 40px;
  margin-bottom: 10px;
}

.encabezado p {
  font-size: 20px;
  color: #ddd;
}

.contenido {
  padding: 40px 20px;
  max-width: 900px;
  margin: auto;
}

.imagen-principal {
  text-align: center;
  margin-bottom: 30px;
}

.imagen-principal img {
  width: 200px;
  height: auto;
}

.caption {
  font-size: 14px;
  color: #bbb;
  margin-top: 5px;
}

.seccion {
  margin-bottom: 40px;
}

.seccion h2 {
  color: #ff79c6;
  font-size: 28px;
  margin-bottom: 10px;
}

.seccion h3 {
  color: #ffd700;
  font-size: 22px;
  margin-bottom: 8px;
}

.seccion p,
.seccion ul {
  font-size: 18px;
}

.seccion ul {
  padding-left: 20px;
}

.seccion ul li {
  margin-bottom: 8px;
}

.codigo pre {
  background-color: #1e1e1e;
  color: #00ff90;
  padding: 15px;
  border-radius: 8px;
  overflow-x: auto;
  white-space: pre-wrap;
  margin-bottom: 20px;
}

.pie {
  background-color: #1e1e1e;
  text-align: center;
  padding: 20px;
  font-size: 14px;
  color: #aaa;
}