/* Global styles */
body {
  font-family: Arial, sans-serif;
  font-size: 16px;
  margin: 0;
  padding: 0;
  background-color: #E5E8E8;
}

h1, h2, h3 {
  color: #4d0082;
}

a {
  text-decoration: none;
}

/* Header styles */
header {
  background-color: #4d0082;
  color: #fff;
  padding: 20px;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.logo {
  height: 50px;
}

nav a {
  color: #fff;
  margin-left: 10px;
}

.menu-icon {
  display: none;
  color: #fff;
  cursor: pointer;
}

/* Introduction section styles */
.intro {
  margin: 30px;
  background-color: #fff;
  padding: 20px;
  border-radius: 5px;
  box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
}

.about {
  display: flex;
  flex-direction: row;
  align-items: center;
}

.about-image {
  flex: 0 0 50%;
  max-width: 25%;
  margin-right: 20px;
}

.about-image img {
  max-width: 100%;
  height: auto;
}

.about-text {
  flex: 1;
}

/* Editorial section styles */
.editorial {
  margin: 30px;
  background-color: #fff;
  padding: 20px;
  border-radius: 5px;
  box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
}

.editorial-content {
  display: flex;
  flex-direction: row;
  align-items: center;
}

.editorial-image {
  flex: 0 0 50%;
  max-width: 25%;
  margin-right: 20px;
}

.editorial-image img {
  max-width: 100%;
  height: auto;
}

.editorial-text {
  flex: 1;
}

/* Editions section styles */
.editions {
  margin: 30px;
  background-color: #fff;
  padding: 20px;
  border-radius: 5px;
  box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
}

.editions-row {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
}

.edition {
  flex: 0 0 calc(33.33% - 10px);
  margin-bottom: 20px;
  padding: 10px;
  box-sizing: border-box;
}

@media (max-width: 1023px) {
  .edition {
    flex: 0 0 calc(50% - 10px);
  }

  .about-image,
  .editorial-image {
    width: 35%;
    margin-left: 7%;
    margin-right: 7%;
    max-width: 35%;
    margin-bottom: 20px;
  }
}

@media (max-width: 768px) {
  .edition {
    flex: 0 0 100%;
  }
}

.download-button {
  padding: 10px 20px;
  background-color: #4d0082;
  color: #fff;
  border: none;
  border-radius: 5px;
  font-size: 14px;
  text-align: center;
  text-decoration: none;
  display: inline-block;
  cursor: pointer;
  transition: background-color 0.3s;
}

.download-button:hover {
  background-color: #5f008f;
}

.download-button i {
  margin-right: 5px;
}

/* Footer styles */
footer {
  background-color: #4d0082;
  color: #fff;
  padding: 20px;
  text-align: center;
}

.social-icons {
  margin-top: 10px;
}

.social-icons a {
  color: #fff;
  margin: 0 5px;
}

/* Responsive styles */
@media (max-width: 768px) {
  .menu-icon {
    display: block;
    font-size: 24px;
  }

  nav {
    display: none;
    flex-direction: column;
    background-color: #4d0082;
    padding: 10px;
    position: absolute;
    top: 70px;
    left: 0;
    width: 100%;
  }

  nav.active {
    display: flex;
  }

  nav a {
    margin: 10px 0;
  }

  .responsive-image {
    width: 100%;
  }

  .about,
  .editorial-content {
    flex-direction: column;
  }

  .about-image,
  .editorial-image {
    width: 100%;
    margin-left: 10%;
    margin-right: 10%;
    max-width: 100%;
    margin-bottom: 20px;
  }

  .editions-row {
    flex-wrap: wrap;
  }

  .edition {
    flex: 0 0 100%;
  }
}

/* Responsive styles for tablet-sized screens */
@media (min-width: 769px) and (max-width: 1023px) {
  .responsive-image {
    width: 50%;
    max-width: 100%;
  }
}

/* Responsive styles for mobile */
@media (max-width: 480px) {
  .logo {
    height: 40px;
  }

  h1 {
    font-size: 24px;
  }

  h2 {
    font-size: 20px;
  }

  .intro,
  .editorial,
  .editions {
    margin: 15px;
    padding: 15px;
  }

  .about-image,
  .editorial-image {
    margin-right: 0;
  }

  .editions-row {
    flex-direction: column;
  }

  .edition {
    flex: 0 0 100%;
  }
}