/* === STYLES COMMUNS === */

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

body {
  font-family: Arial, sans-serif;
  line-height: 1.6;
  color: #333;
  background: #f4f4f4;
}

/* Navigation */
nav {
  background: #007BFF;
  padding: 1rem 0;
  box-shadow: 0 2px 10px rgba(0,0,0,0.1);
  position: sticky;
  top: 0;
  z-index: 1000;
}

nav ul {
  list-style: none;
  display: flex;
  justify-content: center;
  gap: 2rem;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 2rem;
}

nav a {
  color: white;
  text-decoration: none;
  font-weight: 500;
  padding: 0.5rem 1rem;
  border-radius: 6px;
  transition: all 0.3s ease;
}

nav a:hover {
  background: rgba(255,255,255,0.2);
}

nav a.active {
  background: rgba(255,255,255,0.3);
  font-weight: 600;
}

/* Container principal */
.container {
  max-width: 1200px;
  margin: 2rem auto;
  padding: 0 2rem;
}

.content {
  background: white;
  padding: 3rem;
  border-radius: 12px;
  box-shadow: 0 0 10px rgba(0,0,0,0.1);
  min-height: 60vh;
}

h1 {
  color: #007BFF;
  margin-bottom: 1.5rem;
  font-size: 2.5rem;
}

h2 {
  color: #0056b3;
  margin-top: 2rem;
  margin-bottom: 1rem;
  font-size: 1.8rem;
}

p {
  margin-bottom: 1rem;
  color: #555;
}

/* Footer */
footer {
  text-align: center;
  padding: 2rem;
  color: #777;
  margin-top: 4rem;
}

/* Responsive */
@media (max-width: 768px) {
  nav ul {
    flex-direction: column;
    gap: 0.5rem;
  }
  
  .content {
    padding: 1.5rem;
  }
  
  h1 {
    font-size: 2rem;
  }
}