/* ==== BOOK SECTION ==== */
.book-header {
  width: 75%;
  margin: 50px auto 80px auto;
  text-align: center;
}

.book-img {
  width: 75%;
  margin: -9px auto;
}

.book-img img {
  width: 100%;
  height: auto;
  border-radius: 10px;
  object-fit: cover;
}

.book-content {
  width: 50%;
  text-align: left;
  margin: 40px auto 100px auto;
  font-size: 16px;
  line-height: 1.8;
}

.book-content h1 {
  font-size: 32px;
  font-weight: 400;
  color: #333;
  margin-bottom: 20px;
}

.book-content ul {
  font-size: 15px;
  font-weight: 300;
  line-height: 27px;
  color: #554f4f;
  padding-left: 20px;
}

/* ==== RESPONSIVE STYLES ==== */

/* Tablets (≤1024px) */
@media (max-width: 1024px) {
  .book-header {
    width: 85%;
    margin: 40px auto 70px auto;
  }

  .book-img {
    width: 85%;
  }

  .book-content {
    width: 70%;
    font-size: 15px;
    margin: 30px auto 80px auto;
  }

  .book-content h1 {
    font-size: 28px;
  }

  .book-content ul {
    font-size: 14px;
    line-height: 25px;
  }
}

/* Small tablets / landscape phones (≤768px) */
@media (max-width: 768px) {
  .book-header {
    width: 90%;
    margin: 30px auto 50px auto;
  }

  .book-img {
    width: 90%;
  }

  .book-content {
    width: 85%;
    text-align: center;
    margin: 30px auto 60px auto;
  }

  .book-content h1 {
    font-size: 26px;
    text-align: center;
  }

  .book-content ul {
    text-align: left;
    margin: 0 auto;
    display: inline-block;
    font-size: 14px;
  }
}

/* Mobile portrait (≤480px) */
@media (max-width: 480px) {
  .book-header {
    width: 95%;
    margin: 20px auto 40px auto;
  }

  .book-img {
    width: 95%;
    margin: 0 auto 20px auto;
  }

  .book-content {
    width: 95%;
    text-align: center;
    font-size: 15px;
    margin: 20px auto 50px auto;
  }

  .book-content h1 {
    font-size: 22px;
    line-height: 1.3;
  }

  .book-content ul {
    width: 100%;
    text-align: left;
    padding-left: 18px;
    font-size: 14px;
    line-height: 1.6;
  }
}