/* style/blog.css */
/* body đã padding-top: var(--header-offset) từ shared.css, không cần thêm ở đây */

.page-blog {
  font-family: 'Arial', sans-serif;
  line-height: 1.6;
  color: #ffffff; /* Body background is dark (#0a0a0a), so text should be light */
}

.page-blog__hero-section {
  position: relative;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  min-height: 400px;
  padding: 60px 20px;
  padding-top: 10px; /* Nhỏ gọn hơn, tránh bị trùng với padding-top của body */
  text-align: center;
  overflow: hidden;
}

.page-blog__hero-image-wrapper {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  overflow: hidden;
  z-index: -1;
}

.page-blog__hero-image {
  width: 100%;
  height: 100%;
  object-fit: cover;
  filter: brightness(0.4); /* Làm tối ảnh nền để văn bản dễ đọc */
}

.page-blog__hero-content {
  position: relative;
  z-index: 1;
  max-width: 900px;
  margin: 0 auto;
  padding: 20px;
  background: rgba(0, 0, 0, 0.4); /* Nền bán trong suốt để tăng cường độ tương phản */
  border-radius: 8px;
}

.page-blog__main-title {
  font-size: clamp(2.2rem, 4vw, 3.5rem);
  font-weight: 700;
  color: #FFFFFF;
  margin-bottom: 20px;
  line-height: 1.2;
}

.page-blog__hero-description {
  font-size: 1.15rem;
  color: #f0f0f0;
  margin-bottom: 30px;
  max-width: 700px;
  margin-left: auto;
  margin-right: auto;
}

.page-blog__btn-primary,
.page-blog__btn-secondary {
  display: inline-block;
  padding: 14px 28px;
  border-radius: 8px;
  font-weight: 600;
  text-decoration: none;
  transition: all 0.3s ease;
  margin: 10px;
  box-sizing: border-box;
}

.page-blog__btn-primary {
  background-color: #26A9E0;
  color: #FFFFFF;
  border: 2px solid #26A9E0;
}

.page-blog__btn-primary:hover {
  background-color: #1a8bbd;
  border-color: #1a8bbd;
}

.page-blog__btn-secondary {
  background-color: transparent;
  color: #26A9E0;
  border: 2px solid #26A9E0;
}

.page-blog__btn-secondary:hover {
  background-color: #26A9E0;
  color: #FFFFFF;
}

.page-blog__latest-articles,
.page-blog__categories,
.page-blog__cta-section {
  padding: 60px 20px;
}

.page-blog__light-bg {
  background-color: #0a0a0a; /* Body background is dark, so light sections should also be dark for consistency */
  color: #ffffff;
}

.page-blog__dark-bg {
  background-color: #1a1a1a; /* Slightly darker for contrast */
  color: #ffffff;
}

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

.page-blog__section-title {
  font-size: clamp(1.8rem, 3vw, 2.8rem);
  font-weight: 700;
  color: #26A9E0;
  text-align: center;
  margin-bottom: 40px;
}

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

.page-blog__article-card {
  background-color: rgba(255, 255, 255, 0.05); /* Semi-transparent white on dark background */
  border-radius: 12px;
  overflow: hidden;
  box-shadow: 0 4px 15px rgba(0, 0, 0, 0.3);
  transition: transform 0.3s ease, box-shadow 0.3s ease;
  display: flex;
  flex-direction: column;
  height: 100%;
}

.page-blog__article-card:hover {
  transform: translateY(-5px);
  box-shadow: 0 8px 25px rgba(0, 0, 0, 0.4);
}

.page-blog__card-image {
  width: 100%;
  height: 220px;
  object-fit: cover;
}

.page-blog__card-content {
  padding: 25px;
  flex-grow: 1;
  display: flex;
  flex-direction: column;
}

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

.page-blog__card-title a {
  color: #FFFFFF;
  text-decoration: none;
  transition: color 0.3s ease;
}

.page-blog__card-title a:hover {
  color: #26A9E0;
}

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

.page-blog__card-excerpt {
  font-size: 1rem;
  color: #e0e0e0;
  margin-bottom: 20px;
  flex-grow: 1;
}

.page-blog__card-link {
  display: inline-block;
  color: #26A9E0;
  text-decoration: none;
  font-weight: 600;
  transition: color 0.3s ease;
  align-self: flex-start;
}

.page-blog__card-link:hover {
  color: #FFFFFF;
}

.page-blog__view-all {
  text-align: center;
}

.page-blog__featured-article {
  padding: 80px 20px;
}

.page-blog__featured-flex {
  display: flex;
  align-items: center;
  gap: 40px;
}

.page-blog__featured-content {
  flex: 1;
}

.page-blog__featured-image-wrapper {
  flex: 1;
  border-radius: 12px;
  overflow: hidden;
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.4);
}

.page-blog__featured-image {
  width: 100%;
  height: auto;
  display: block;
}

.page-blog__featured-title {
  font-size: clamp(1.6rem, 3vw, 2.5rem);
  font-weight: 700;
  margin-top: 20px;
  margin-bottom: 15px;
  line-height: 1.2;
}

.page-blog__featured-title a {
  color: #FFFFFF;
  text-decoration: none;
  transition: color 0.3s ease;
}

.page-blog__featured-title a:hover {
  color: #26A9E0;
}

.page-blog__featured-meta {
  font-size: 0.95rem;
  color: #bbbbbb;
  margin-bottom: 20px;
}

.page-blog__featured-excerpt {
  font-size: 1.1rem;
  color: #e0e0e0;
  margin-bottom: 30px;
}

.page-blog__category-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: 20px;
  text-align: center;
}

.page-blog__category-card {
  display: block;
  padding: 25px 20px;
  background-color: rgba(255, 255, 255, 0.08); /* Semi-transparent white on dark background */
  border-radius: 10px;
  font-size: 1.2rem;
  font-weight: 600;
  color: #FFFFFF;
  text-decoration: none;
  transition: background-color 0.3s ease, color 0.3s ease;
  box-shadow: 0 2px 10px rgba(0, 0, 0, 0.2);
}

.page-blog__category-card:hover {
  background-color: #26A9E0;
  color: #FFFFFF;
}

.page-blog__faq-section {
  padding: 80px 20px;
}

.page-blog__faq-list {
  max-width: 900px;
  margin: 0 auto;
}

.page-blog__faq-item {
  background-color: rgba(255, 255, 255, 0.08); /* Semi-transparent white on dark background */
  border-radius: 10px;
  margin-bottom: 15px;
  overflow: hidden;
  box-shadow: 0 2px 10px rgba(0, 0, 0, 0.2);
}

.page-blog__faq-question {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 20px 25px;
  font-size: 1.15rem;
  font-weight: 600;
  color: #FFFFFF;
  cursor: pointer;
  background-color: rgba(255, 255, 255, 0.12);
  border-bottom: 1px solid rgba(255, 255, 255, 0.15);
}

.page-blog__faq-item[open] .page-blog__faq-question {
  border-bottom: 1px solid rgba(255, 255, 255, 0.2);
}

.page-blog__faq-question::-webkit-details-marker, /* Hide default marker */
.page-blog__faq-question::marker {
  display: none;
}

.page-blog__faq-toggle {
  font-size: 1.8rem;
  line-height: 1;
  transition: transform 0.3s ease;
}

.page-blog__faq-item[open] .page-blog__faq-toggle {
  transform: rotate(45deg);
}

.page-blog__faq-answer {
  padding: 20px 25px;
  font-size: 1rem;
  color: #e0e0e0;
}

.page-blog__faq-answer p {
  margin-bottom: 10px;
}

.page-blog__faq-answer a {
  color: #26A9E0;
  text-decoration: underline;
}

.page-blog__cta-section {
  text-align: center;
  padding: 80px 20px;
  background-color: #0a0a0a;
  color: #ffffff;
}

.page-blog__cta-description {
  font-size: 1.2rem;
  color: #e0e0e0;
  max-width: 800px;
  margin: 0 auto 30px auto;
}

.page-blog__cta-buttons {
  display: flex;
  justify-content: center;
  gap: 20px;
  margin-top: 30px;
}

/* Responsive Styles */
@media (max-width: 992px) {
  .page-blog__featured-flex {
    flex-direction: column;
    text-align: center;
  }

  .page-blog__featured-image-wrapper {
    margin-top: 30px;
  }

  .page-blog__hero-content {
    padding: 15px;
  }

  .page-blog__main-title {
    font-size: 2.5rem;
  }

  .page-blog__hero-description {
    font-size: 1rem;
  }

  .page-blog__section-title {
    font-size: 2.2rem;
  }

  .page-blog__category-grid {
    grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
  }
}

@media (max-width: 768px) {
  .page-blog__hero-section,
  .page-blog__latest-articles,
  .page-blog__featured-article,
  .page-blog__categories,
  .page-blog__faq-section,
  .page-blog__cta-section {
    padding: 40px 15px;
  }

  .page-blog__hero-content {
    width: 100%;
    padding: 10px;
  }

  .page-blog__main-title {
    font-size: 2rem;
  }

  .page-blog__hero-description {
    font-size: 0.95rem;
  }

  .page-blog__section-title {
    font-size: 1.8rem;
    margin-bottom: 30px;
  }

  .page-blog__article-grid {
    grid-template-columns: 1fr;
    gap: 20px;
  }

  .page-blog__card-image {
    height: 180px;
  }

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

  .page-blog__card-excerpt {
    font-size: 0.9rem;
  }

  .page-blog__featured-title {
    font-size: 1.5rem;
  }

  .page-blog__featured-excerpt {
    font-size: 1rem;
  }

  .page-blog__category-grid {
    grid-template-columns: repeat(auto-fit, minmax(120px, 1fr));
  }

  .page-blog__category-card {
    font-size: 1rem;
    padding: 18px 10px;
  }

  .page-blog__faq-question {
    font-size: 1rem;
    padding: 15px 20px;
  }

  .page-blog__faq-answer {
    font-size: 0.9rem;
    padding: 15px 20px;
  }

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

  /* Mobile responsive for images */
  .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__featured-article,
  .page-blog__categories,
  .page-blog__faq-section,
  .page-blog__cta-section {
    max-width: 100% !important;
    width: 100% !important;
    box-sizing: border-box !important;
    padding-left: 15px;
    padding-right: 15px;
  }

  /* Buttons mobile responsive */
  .page-blog__btn-primary,
  .page-blog__btn-secondary,
  .page-blog a[class*="button"],
  .page-blog a[class*="btn"] {
    max-width: 100% !important;
    width: 100% !important;
    box-sizing: border-box !important;
    white-space: normal !important;
    word-wrap: break-word !important;
    margin: 5px 0 !important; /* Adjust margin for vertical stack */
  }
  
  .page-blog__cta-buttons {
    max-width: 100% !important;
    width: 100% !important;
    box-sizing: border-box !important;
    padding-left: 0;
    padding-right: 0;
    flex-wrap: wrap !important;
    gap: 10px;
  }

  .page-blog__hero-section {
    padding-top: 10px !important; /* body đã承担 --header-offset，此处禁止 var(--header-offset) */
  }
}