body {
  font-family: Arial, sans-serif;
  margin: 0;
  padding: 0;
  line-height: 1.6;
  background: #f4f4f9;
  color: #333;
}

header {
  background: #222;
  color: white;
  text-align: center;
  padding: 2rem 1rem;
}

header h1 {
  margin: 0;
  font-size: 2.5rem;
}

header p {
  margin: 0.5rem 0 1rem;
}

nav a {
  color: #61dafb;
  margin: 0 10px;
  text-decoration: none;
  font-weight: bold;
}

section {
  padding: 2rem;
  max-width: 800px;
  margin: auto;
}

h2 {
  color: #444;
  margin-bottom: 1rem;
}

.proyecto {
  background: white;
  padding: 1rem;
  margin-bottom: 1rem;
  border-radius: 8px;
  box-shadow: 0 2px 5px rgba(0,0,0,0.1);
}

.proyecto h3 {
  margin-top: 0;
}

.proyecto a {
  display: inline-block;
  margin-top: 10px;
  color: #0077b5;
  text-decoration: none;
  font-weight: bold;
}

footer {
  background: #222;
  color: white;
  text-align: center;
  padding: 1rem;
  margin-top: 2rem;
}