/* style/blog.css */
/* body đã padding-top: var(--header-offset) từ shared.css; trang này không cần thêm padding-top cho main hoặc các section đầu tiên */

:root {
  --primary-color: #26A9E0;
  --secondary-color: #FFFFFF;
  --text-dark: #333333;
  --text-light: #ffffff;
  --bg-dark: #0a0a0a; /* Từ body background */
  --bg-light: #ffffff;
  --login-button-color: #EA7C07;
}

.page-blog {
  color: var(--text-light); /* Mặc định chữ sáng trên nền tối của body */
  font-family: Arial, sans-serif;
  line-height: 1.6;
}

/* Cấu trúc chung cho các container */
.page-blog__container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 20px;
  box-sizing: border-box;
}

/* Hero Section */
.page-blog__hero-section {
  position: relative;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: 60px 0;
  padding-top: 10px; /* Chỉ một khoảng cách nhỏ để không bị dính sát header */
  min-height: 500px; /* Đảm bảo chiều cao tối thiểu */
  overflow: hidden;
  background-color: var(--bg-dark); /* Đảm bảo nền tối */
}

.page-blog__hero-image-container {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  z-index: 0;
}

.page-blog__hero-image {
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: 0.3; /* Làm mờ ảnh nền để văn bản dễ đọc */
}

.page-blog__hero-content {
  position: relative;
  z-index: 1;
  max-width: 800px;
  padding: 20px;
  background: rgba(0, 0, 0, 0.5); /* Nền overlay cho text */
  border-radius: 8px;
}

.page-blog__main-title {
  font-size: clamp(2em, 4vw, 3.5em);
  color: var(--secondary-color);
  margin-bottom: 20px;
  font-weight: bold;
  line-height: 1.2;
}

.page-blog__intro-text {
  font-size: 1.2em;
  color: var(--secondary-color);
  margin-bottom: 30px;
}

/* Section Titles */
.page-blog__section-title {
  font-size: 2.5em;
  font-weight: bold;
  text-align: center;
  margin-bottom: 40px;
  color: var(--primary-color); /* Tiêu đề nổi bật */
}

/* Buttons */
.page-blog__btn-primary,
.page-blog__btn-secondary {
  display: inline-block;
  padding: 12px 25px;
  border-radius: 8px;
  text-decoration: none;
  font-weight: bold;
  transition: background-color 0.3s ease, color 0.3s ease, border-color 0.3s ease;
  margin: 10px;
  cursor: pointer;
  max-width: 100%;
  box-sizing: border-box;
  white-space: normal;
  word-wrap: break-word;
}

.page-blog__btn-primary {
  background-color: var(--primary-color);
  color: var(--secondary-color);
  border: 2px solid var(--primary-color);
}

.page-blog__btn-primary:hover {
  background-color: #1e87c0;
  border-color: #1e87c0;
}

.page-blog__btn-secondary {
  background-color: transparent;
  color: var(--primary-color);
  border: 2px solid var(--primary-color);
}

.page-blog__btn-secondary:hover {
  background-color: var(--primary-color);
  color: var(--secondary-color);
}

/* Article Grid */
.page-blog__latest-articles {
  padding: 80px 0;
  background-color: var(--bg-light); /* Nền sáng cho khu vực bài viết */
  color: var(--text-dark); /* Chữ tối trên nền sáng */
}

.page-blog__articles-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 30px;
}

.page-blog__article-card {
  background-color: var(--secondary-color);
  border-radius: 10px;
  box-shadow: 0 4px 15px rgba(0, 0, 0, 0.1);
  overflow: hidden;
  display: flex;
  flex-direction: column;
  transition: transform 0.3s ease;
}

.page-blog__article-card:hover {
  transform: translateY(-5px);
}

.page-blog__article-image {
  width: 100%;
  height: 200px;
  object-fit: cover;
  display: block;
}

.page-blog__card-content {
  padding: 20px;
  display: flex;
  flex-direction: column;
  flex-grow: 1;
}

.page-blog__card-title {
  font-size: 1.4em;
  margin-bottom: 10px;
  line-height: 1.3;
}

.page-blog__card-title a {
  color: var(--primary-color);
  text-decoration: none;
}

.page-blog__card-title a:hover {
  text-decoration: underline;
}

.page-blog__article-meta {
  font-size: 0.9em;
  color: #666;
  margin-bottom: 15px;
}

.page-blog__article-excerpt {
  font-size: 1em;
  color: #555;
  margin-bottom: 20px;
  flex-grow: 1;
}

.page-blog__read-more {
  color: var(--primary-color);
  text-decoration: none;
  font-weight: bold;
  align-self: flex-start;
}

.page-blog__read-more:hover {
  text-decoration: underline;
}

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

/* Categories Section */
.page-blog__categories {
  padding: 80px 0;
  background-color: var(--bg-dark);
  color: var(--text-light);
}

.page-blog__categories .page-blog__section-title {
  color: var(--secondary-color);
}

.page-blog__categories-list {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 15px;
}

.page-blog__category-item {
  display: inline-block;
  background-color: rgba(255, 255, 255, 0.1);
  color: var(--secondary-color);
  padding: 10px 20px;
  border-radius: 25px;
  text-decoration: none;
  transition: background-color 0.3s ease;
  font-size: 0.95em;
}

.page-blog__category-item:hover {
  background-color: var(--primary-color);
}

/* Featured Article Section */
.page-blog__featured-article-section {
  padding: 80px 0;
  background-color: var(--bg-light);
  color: var(--text-dark);
}

.page-blog__featured-card {
  display: flex;
  flex-direction: column;
  background-color: var(--secondary-color);
  border-radius: 10px;
  box-shadow: 0 4px 15px rgba(0, 0, 0, 0.1);
  overflow: hidden;
}

.page-blog__featured-image {
  width: 100%;
  height: auto;
  max-height: 500px;
  object-fit: cover;
  display: block;
}

.page-blog__featured-content {
  padding: 30px;
}

.page-blog__featured-title {
  font-size: 2em;
  margin-bottom: 15px;
  line-height: 1.3;
}

.page-blog__featured-title a {
  color: var(--primary-color);
  text-decoration: none;
}

.page-blog__featured-title a:hover {
  text-decoration: underline;
}

.page-blog__featured-excerpt {
  font-size: 1.1em;
  color: #444;
  margin-bottom: 25px;
}

/* FAQ Section */
.page-blog__faq-section {
  padding: 80px 0;
  background-color: var(--bg-dark);
  color: var(--text-light);
}

.page-blog__faq-section .page-blog__section-title {
  color: var(--secondary-color);
}

.page-blog__faq-list {
  max-width: 800px;
  margin: 0 auto;
}

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

.page-blog__faq-question {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 18px 25px;
  font-size: 1.15em;
  font-weight: bold;
  cursor: pointer;
  background-color: rgba(255, 255, 255, 0.05);
  transition: background-color 0.3s ease;
  color: var(--text-light);
}

.page-blog__faq-question:hover {
  background-color: rgba(255, 255, 255, 0.1);
}

.page-blog__faq-qtext {
  flex-grow: 1;
}

.page-blog__faq-toggle {
  font-size: 1.5em;
  margin-left: 15px;
  color: var(--primary-color);
}

.page-blog__faq-item[open] .page-blog__faq-toggle {
  content: '−'; /* Changed by JS */
}

.page-blog__faq-answer {
  padding: 15px 25px 20px;
  font-size: 1em;
  color: rgba(255, 255, 255, 0.8);
}

.page-blog__faq-item summary::-webkit-details-marker {
  display: none;
}

.page-blog__faq-item summary {
  list-style: none;
}

/* CTA Section */
.page-blog__cta-section {
  padding: 80px 0;
  text-align: center;
  background-color: var(--bg-light);
  color: var(--text-dark);
}

.page-blog__cta-section .page-blog__section-title {
  color: var(--primary-color);
}

.page-blog__cta-text {
  font-size: 1.3em;
  margin-bottom: 40px;
  max-width: 800px;
  margin-left: auto;
  margin-right: auto;
}

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

/* Responsive Design */
@media (max-width: 992px) {
  .page-blog__main-title {
    font-size: clamp(2em, 5vw, 3em);
  }
  .page-blog__section-title {
    font-size: 2em;
  }
  .page-blog__featured-card {
    flex-direction: column;
  }
  .page-blog__featured-image {
    height: 350px;
  }
}

@media (max-width: 768px) {
  .page-blog__hero-section {
    padding: 40px 0;
    padding-top: 10px !important;
  }
  .page-blog__hero-content {
    padding: 15px;
  }
  .page-blog__main-title {
    font-size: clamp(1.8em, 6vw, 2.5em);
  }
  .page-blog__intro-text {
    font-size: 1em;
  }
  .page-blog__section-title {
    font-size: 1.8em;
    margin-bottom: 30px;
  }
  .page-blog__latest-articles,
  .page-blog__categories,
  .page-blog__featured-article-section,
  .page-blog__faq-section,
  .page-blog__cta-section {
    padding: 50px 0;
  }
  .page-blog__articles-grid {
    grid-template-columns: 1fr;
  }
  .page-blog__article-card {
    margin-left: 15px;
    margin-right: 15px;
  }
  .page-blog__featured-title {
    font-size: 1.5em;
  }
  .page-blog__featured-excerpt {
    font-size: 1em;
  }
  .page-blog__faq-question {
    padding: 15px 20px;
    font-size: 1em;
  }
  .page-blog__faq-answer {
    padding: 10px 20px 15px;
  }
  .page-blog__cta-text {
    font-size: 1.1em;
  }
  .page-blog__cta-buttons {
    flex-direction: column;
    gap: 15px;
  }
  .page-blog__btn-primary,
  .page-blog__btn-secondary {
    width: calc(100% - 30px) !important; /* Đảm bảo nút chiếm toàn bộ chiều rộng, trừ padding */
    margin: 0 auto !important;
    padding: 12px 15px !important;
    box-sizing: border-box !important;
    white-space: normal !important;
    word-wrap: break-word !important;
  }
  /* Mobile image and container responsiveness */
  .page-blog img {
    max-width: 100% !important;
    width: 100% !important;
    height: auto !important;
    display: block !important;
  }
  .page-blog__section,
  .page-blog__card,
  .page-blog__container,
  .page-blog__hero-section,
  .page-blog__latest-articles,
  .page-blog__categories,
  .page-blog__featured-article-section,
  .page-blog__faq-section,
  .page-blog__cta-section,
  .page-blog__articles-grid,
  .page-blog__featured-card,
  .page-blog__faq-list,
  .page-blog__cta-buttons {
    max-width: 100% !important;
    width: 100% !important;
    box-sizing: border-box !important;
    padding-left: 15px !important;
    padding-right: 15px !important;
    overflow: hidden !important; /* Đảm bảo không tràn */
  }
  .page-blog__article-card, .page-blog__featured-card {
    margin-left: 0 !important;
    margin-right: 0 !important;
  }
  .page-blog__categories-list {
    justify-content: flex-start;
  }
  .page-blog__category-item {
    flex-basis: auto; /* Cho phép item tự điều chỉnh chiều rộng */
    max-width: calc(100% - 15px); /* Tránh tràn */
  }
}