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

body {
  font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
  background: linear-gradient(135deg, #232526 0%, #414345 100%);
  color: #f5f5f5;
  line-height: 1.6;
}

/* Encabezado */
header {
  background-color: #afabab;
  padding: 1.5rem 2rem;
  border-bottom: 2px solid #333;
}

header h1 {
  font-size: 2rem;
  margin-bottom: 1rem;
}

/* Navegación */
nav ul {
  list-style: none;
  display: flex;
  gap: 2rem;
  flex-wrap: wrap;
  justify-content: flex-end; /* Alinea los botones a la derecha */
  margin-right: 1rem;
}

nav ul li a {
  text-decoration: none;
  color: #f5f5f5;
  padding: 0.9rem 2rem;
  border-radius: 0.5rem;
  font-size: 1.15rem;
  font-weight: bold;
  background: linear-gradient(90deg, #232526 0%, #434343 100%); /* De gris oscuro a gris más claro */
  box-shadow: 0 2px 8px rgba(0,0,0,0.15);
  transition: background 0.3s, transform 0.3s, box-shadow 0.3s;
  display: inline-block;
}

nav ul li a:hover,
nav ul li a:focus {
  background: linear-gradient(90deg, #434343 0%, #232526 100%);
  transform: scale(1.07);
  box-shadow: 0 4px 16px rgba(0,0,0,0.25);
  outline: none;
}

/* Main */
main {
  padding: 2rem;
}

main h2,
main h3 {
  color: #f1c40f;
}

main p {
  margin: 1rem 0;
}

main img {
  max-width: 350px;
  height: auto;
  max-width: 60%;
  height: auto;
  margin-top: 1rem;
  border-radius: 0.5rem;
  display: block;
  margin-left: auto;
  margin-right: auto;
}

/* Footer */
footer {
  background-color: #1e1e1e;
  text-align: center;
  padding: 1rem;
  margin-top: 2rem;
  border-top: 2px solid #333;
}

footer p {
  font-size: 1.05rem;
  color: #aaa;
}

/* Responsive: los botones se apilan en pantallas pequeñas */
@media (max-width: 600px) {
  nav ul {
    flex-direction: column;
    align-items: flex-end;
    gap: 1rem;
    margin-right: 0.5rem;
  }
  nav ul li a {
    width: 100%;
    text-align: right;
    font-size: 1rem;
    padding: 0.8rem 1.2rem;
  }
}