/* Global styles */
body {
  background-color: #d6f0ff; /* azul celeste claro */
  color: #222;
  font-family: Verdana, sans-serif;
  line-height: 1.6;
  margin: 0;
  padding: 0;
}

/* Header */
header {
  background-color: #99ccff; /* azul pastel */
  color: #003366;
  padding: 1rem 2rem;
  border-bottom: 4px solid #66aadd;
}

header h1 {
  margin: 0;
  font-size: 2rem;
}

/* Navigation */
nav ul {
  list-style: none;
  padding: 0;
  margin-top: 0.5rem;
  display: flex;
  gap: 1rem;
}

nav a {
  color: #003366;
  text-decoration: none;
  background-color: #cce6ff;
  padding: 4px 8px;
  border-radius: 4px;
  transition: background-color 0.2s;
}

nav a:hover {
  background-color: #b3d9ff;
}

/* Main content */
main {
  padding: 2rem;
  max-width: 800px;
  margin: 0 auto;
  background-color: #ffffff;
  border: 2px solid #c2e0f4;
  border-radius: 12px;
  box-shadow: 0 4px 12px rgba(0, 51, 102, 0.1);
}

/* Images */
img {
  max-width: 100%;
  height: auto;
  border: 2px solid #aaccee;
  border-radius: 8px;
  margin: 1rem 0;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
}

/* Footer */
footer {
  background-color: #cce6ff;
  color: #003366;
  text-align: center;
  padding: 1rem;
  font-size: 0.9rem;
  border-top: 2px solid #99ccff;
}

footer a {
  color: #003366;
  text-decoration: underline;
}

footer a:hover {
  color: #000;
}