* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
  font-family: Arial, Helvetica, sans-serif;
}

body {
  background: #f4f6f8;
  color: #222;
}

header {
  background: #0a3d62;
  color: white;
  padding: 20px;
}

header h1 {
  font-size: 2.2rem;
}

nav a {
  color: white;
  margin-right: 15px;
  text-decoration: none;
  font-weight: 600;
}

.container {
  max-width: 1200px;
  margin: 30px auto;
  padding: 0 20px;
  display: grid;
  grid-template-columns: 3fr 1fr;
  gap: 30px;
}

.news {
  background: white;
  padding: 25px;
  border-radius: 10px;
  box-shadow: 0 6px 18px rgba(0, 0, 0, 0.08);
  margin-bottom: 20px;
}

.news img {
  width: 100%;
  border-radius: 6px;
  margin-bottom: 10px;
}

.news h2 {
  margin-bottom: 10px;
  color: #0a3d62;
}

.news p {
  line-height: 1.6;
}

.sidebar {
  background: white;
  padding: 20px;
  border-radius: 8px;
  box-shadow: 0 2px 6px rgba(0, 0, 0, 0.1);
}

.sidebar a {
  color: #1a73e8;
  text-decoration: none;
}

.sidebar a:hover {
  color: #0a3d62;
  text-decoration: underline;
}

footer {
  background: #0a3d62;
  color: white;
  text-align: center;
  padding: 15px;
  margin-top: 30px;
}


/* GALERIA DE LIBROS PRINCIPAL */
.book-gallery {
  display: grid;
  grid-template-columns: repeat(5, minmax(0, 1fr));
  gap: 10px;
}

.book-gallery a {
  display: flex;
  justify-content: center;
}

.book-gallery img {
  width: 100%;
  height: 100%;
  max-width: 120px;
  max-height: 200px;
  object-fit: cover;
  border-radius: 6px;
}


/* GALERIA RELACIONADAS */
.related-gallery {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  grid-auto-rows: 100px;
  gap: 5px;
  justify-content: center;
}

.related-gallery img {
  width: 60px;
  height: 100px;
  object-fit: cover;
  border-radius: 6px;
}


@media (max-width: 768px) {
  .container {
    grid-template-columns: 1fr;
  }

  header {
    text-align: center;
  }
}