/* style/blog.css */
/* body đã padding-top: var(--header-offset) từ shared.css; trang này KHÔNG được viết lại padding-top cho body hoặc các section đầu tiên. */

.page-blog {
  color: #ffffff; /* Văn bản màu trắng cho nền tối của body */
  font-family: Arial, sans-serif;
  line-height: 1.6;
}

.page-blog__container {
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 20px;
  box-sizing: border-box;
}

.page-blog__hero-section {
  position: relative;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 60px 0;
  padding-top: 10px; /* Chỉ một khoảng đệm nhỏ, không dùng var(--header-offset) */
  text-align: center;
  background: linear-gradient(135deg, #26A9E0, #1a7bb5);
  overflow: hidden;
}

.page-blog__hero-image-wrapper {
  width: 100%;
  max-width: 100%;
  margin-bottom: 30px;
}

.page-blog__hero-image {
  width: 100%;
  height: auto;
  display: block;
  border-radius: 8px;
  box-shadow: 0 8px 25px rgba(0, 0, 0, 0.3);
}

.page-blog__hero-content {
  max-width: 800px;
  z-index: 1;
}

.page-blog__main-title {
  font-size: clamp(2.5rem, 5vw, 3.5rem);
  font-weight: 700;
  color: #ffffff;
  margin-bottom: 15px;
  line-height: 1.2;
}

.page-blog__intro-text {
  font-size: 1.15rem;
  color: #f0f0f0;
  margin-bottom: 30px;
}

.page-blog__cta-buttons {
  display: flex;
  justify-content: center;
  gap: 20px;
}

.page-blog__btn-primary,
.page-blog__btn-secondary {
  display: inline-block;
  padding: 15px 30px;
  border-radius: 50px;
  text-decoration: none;
  font-weight: 700;
  font-size: 1.05rem;
  transition: all 0.3s ease;
  box-sizing: border-box;
  max-width: 100%;
  white-space: normal;
  word-wrap: break-word;
}

.page-blog__btn-primary {
  background-color: #EA7C07; /* Màu cam cho nút đăng ký */
  color: #ffffff;
  border: 2px solid #EA7C07;
}

.page-blog__btn-primary:hover {
  background-color: #d16b06;
  border-color: #d16b06;
  transform: translateY(-2px);
}

.page-blog__btn-secondary {
  background-color: transparent;
  color: #ffffff;
  border: 2px solid #ffffff;
}

.page-blog__btn-secondary:hover {
  background-color: #ffffff;
  color: #26A9E0;
  transform: translateY(-2px);
}

.page-blog__latest-articles,
.page-blog__featured-categories,
.page-blog__faq-section {
  padding: 80px 0;
  background-color: rgba(255, 255, 255, 0.05); /* Nền hơi sáng hơn cho các phần nội dung */
  margin-bottom: 20px;
  border-radius: 10px;
}

.page-blog__section-title {
  font-size: 2.5rem;
  color: #26A9E0;
  text-align: center;
  margin-bottom: 20px;
  font-weight: 700;
}

.page-blog__section-description {
  font-size: 1.1rem;
  color: #f0f0f0;
  text-align: center;
  max-width: 800px;
  margin: 0 auto 40px auto;
}

.page-blog__article-grid,
.page-blog__category-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 30px;
  margin-top: 40px;
}

.page-blog__article-card,
.page-blog__category-card {
  background-color: rgba(255, 255, 255, 0.1); /* Nền thẻ bài viết/danh mục */
  border-radius: 10px;
  overflow: hidden;
  box-shadow: 0 4px 15px rgba(0, 0, 0, 0.2);
  transition: transform 0.3s ease, box-shadow 0.3s ease;
  color: #ffffff;
  text-decoration: none;
}

.page-blog__article-card:hover,
.page-blog__category-card:hover {
  transform: translateY(-5px);
  box-shadow: 0 8px 25px rgba(0, 0, 0, 0.3);
}

.page-blog__article-thumbnail {
  width: 100%;
  height: 225px; /* Chiều cao cố định cho ảnh thu nhỏ */
  overflow: hidden;
}

.page-blog__article-image,
.page-blog__category-image {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
  transition: transform 0.3s ease;
}

.page-blog__article-card:hover .page-blog__article-image,
.page-blog__category-card:hover .page-blog__category-image {
  transform: scale(1.05);
}

.page-blog__article-content {
  padding: 20px;
}

.page-blog__article-title {
  font-size: 1.4rem;
  font-weight: 600;
  margin-bottom: 10px;
  line-height: 1.3;
}

.page-blog__article-title a {
  color: #26A9E0;
  text-decoration: none;
  transition: color 0.3s ease;
}

.page-blog__article-title a:hover {
  color: #EA7C07;
}

.page-blog__article-meta {
  font-size: 0.9rem;
  color: #cccccc;
  margin-bottom: 15px;
}

.page-blog__article-excerpt {
  font-size: 1rem;
  color: #f0f0f0;
  margin-bottom: 20px;
}

.page-blog__read-more {
  display: inline-block;
  color: #26A9E0;
  text-decoration: none;
  font-weight: 600;
  transition: color 0.3s ease;
}

.page-blog__read-more:hover {
  color: #EA7C07;
}

.page-blog__view-all-button {
  text-align: center;
  margin-top: 50px;
}

.page-blog__category-card {
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  padding: 20px;
}

.page-blog__category-name {
  font-size: 1.2rem;
  font-weight: 600;
  color: #ffffff;
  margin-top: 15px;
}

.page-blog__faq-list {
  margin-top: 40px;
}

.page-blog__faq-item {
  background-color: rgba(255, 255, 255, 0.08);
  border-radius: 8px;
  margin-bottom: 15px;
  overflow: hidden;
}

.page-blog__faq-question {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 20px;
  font-size: 1.15rem;
  font-weight: 600;
  color: #ffffff;
  cursor: pointer;
  background-color: rgba(255, 255, 255, 0.15);
  transition: background-color 0.3s ease;
  list-style: none; /* Dành cho <summary> */
}

.page-blog__faq-question::-webkit-details-marker { /* Dành cho <summary> */
  display: none;
}

.page-blog__faq-question:hover {
  background-color: rgba(255, 255, 255, 0.2);
}

.page-blog__faq-toggle {
  font-size: 1.5rem;
  margin-left: 15px;
  color: #26A9E0;
}

.page-blog__faq-item[open] .page-blog__faq-toggle {
  content: '−';
}

.page-blog__faq-answer {
  padding: 0 20px 20px 20px;
  font-size: 1rem;
  color: #f0f0f0;
  line-height: 1.8;
}

/* Responsive styles */
@media (max-width: 768px) {
  .page-blog__hero-section {
    padding: 40px 0;
    padding-top: 10px !important;
  }

  .page-blog__main-title {
    font-size: clamp(2rem, 8vw, 2.5rem);
  }

  .page-blog__intro-text {
    font-size: 1rem;
    padding: 0 15px;
  }

  .page-blog__cta-buttons {
    flex-direction: column;
    gap: 15px;
    padding: 0 15px;
  }

  .page-blog__btn-primary,
  .page-blog__btn-secondary {
    width: 100% !important;
    max-width: 100% !important;
    padding: 12px 20px;
    font-size: 1rem;
  }

  .page-blog__latest-articles,
  .page-blog__featured-categories,
  .page-blog__faq-section {
    padding: 40px 0;
  }

  .page-blog__section-title {
    font-size: 2rem;
    padding: 0 15px;
  }

  .page-blog__section-description {
    font-size: 0.95rem;
    padding: 0 15px;
    margin-bottom: 30px;
  }

  .page-blog__article-grid,
  .page-blog__category-grid {
    grid-template-columns: 1fr;
    gap: 20px;
    padding: 0 15px;
  }

  .page-blog__article-title {
    font-size: 1.2rem;
  }

  .page-blog__article-meta,
  .page-blog__article-excerpt,
  .page-blog__read-more,
  .page-blog__category-name {
    font-size: 0.9rem;
  }

  .page-blog__faq-question {
    font-size: 1rem;
    padding: 15px;
  }

  .page-blog__faq-answer {
    padding: 0 15px 15px 15px;
    font-size: 0.95rem;
  }

  /* Mobile image responsiveness */
  .page-blog img {
    max-width: 100% !important;
    height: auto !important;
    display: block !important;
  }

  .page-blog__section,
  .page-blog__card,
  .page-blog__container,
  .page-blog__hero-image-wrapper,
  .page-blog__article-thumbnail {
    max-width: 100% !important;
    width: 100% !important;
    box-sizing: border-box !important;
    overflow: hidden !important;
  }

  .page-blog__hero-section .page-blog__container {
    padding: 0;
  }

  .page-blog__latest-articles .page-blog__container,
  .page-blog__featured-categories .page-blog__container,
  .page-blog__faq-section .page-blog__container {
    padding: 0 15px;
  }
}