/* style/blog.css */
/* body đã có padding-top: var(--header-offset); nên không cần thêm vào đây */

.page-blog {
  font-family: 'Arial', sans-serif;
  color: #333333;
  line-height: 1.6;
  background-color: #FFFFFF;
}

.page-blog__container {
  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;
  padding-bottom: 60px;
  padding-top: 10px; /* Nhỏ hơn so với header-offset */
  background-color: #FFFFFF;
}

.page-blog__hero-image-wrapper {
  width: 100%;
  max-height: 500px;
  overflow: hidden;
  position: relative;
}

.page-blog__hero-image {
  width: 100%;
  height: auto;
  display: block;
  object-fit: cover;
}

.page-blog__hero-content {
  max-width: 800px;
  text-align: center;
  padding: 40px 20px;
  background-color: rgba(255, 255, 255, 0.9);
  margin-top: -80px;
  position: relative;
  z-index: 1;
  border-radius: 8px;
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.1);
}

.page-blog__main-title {
  font-weight: 700;
  line-height: 1.2;
  color: #26A9E0;
  margin-bottom: 20px;
  font-size: clamp(1.8rem, 3.5vw, 2.8rem); /* Sử dụng clamp cho kích thước H1 */
}

.page-blog__description {
  font-size: 1.1rem;
  margin-bottom: 30px;
  color: #333333;
}

.page-blog__btn-primary {
  display: inline-block;
  background-color: #26A9E0;
  color: #FFFFFF;
  padding: 15px 30px;
  border-radius: 5px;
  text-decoration: none;
  font-weight: bold;
  transition: background-color 0.3s ease;
  border: none;
  cursor: pointer;
}

.page-blog__btn-primary:hover {
  background-color: #1a8cc7;
}

.page-blog__section-title {
  font-size: 2.2rem;
  font-weight: 700;
  color: #26A9E0;
  text-align: center;
  margin-bottom: 20px;
}

.page-blog__section-title--white {
  color: #FFFFFF;
}

.page-blog__section-description {
  font-size: 1.1rem;
  color: #555555;
  text-align: center;
  margin-bottom: 40px;
}

.page-blog__section-description--white {
  color: #f0f0f0;
}

.page-blog__latest-articles {
  padding: 60px 0;
  background-color: #f9f9f9;
}

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

.page-blog__article-card {
  background-color: #FFFFFF;
  border-radius: 8px;
  box-shadow: 0 2px 10px rgba(0, 0, 0, 0.05);
  overflow: hidden;
  transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.page-blog__article-card:hover {
  transform: translateY(-5px);
  box-shadow: 0 4px 15px rgba(0, 0, 0, 0.1);
}

.page-blog__article-link {
  text-decoration: none;
  color: inherit;
  display: block;
}

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

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

.page-blog__article-title {
  font-size: 1.4rem;
  font-weight: 600;
  color: #26A9E0;
  margin-bottom: 10px;
}

.page-blog__article-meta {
  font-size: 0.9rem;
  color: #777777;
  margin-bottom: 15px;
}

.page-blog__article-excerpt {
  font-size: 1rem;
  color: #555555;
  margin-bottom: 20px;
}

.page-blog__read-more {
  color: #26A9E0;
  font-weight: bold;
  display: flex;
  align-items: center;
}

.page-blog__arrow {
  margin-left: 5px;
  transition: margin-left 0.3s ease;
}

.page-blog__article-card:hover .page-blog__arrow {
  margin-left: 10px;
}

.page-blog__view-all-button-container {
  text-align: center;
  margin-top: 40px;
}

.page-blog__btn-secondary {
  display: inline-block;
  background-color: #FFFFFF;
  color: #26A9E0;
  padding: 15px 30px;
  border-radius: 5px;
  text-decoration: none;
  font-weight: bold;
  border: 2px solid #26A9E0;
  transition: background-color 0.3s ease, color 0.3s ease;
}

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

.page-blog__categories-section {
  padding: 60px 0;
  background-color: #26A9E0;
  color: #FFFFFF;
}

.page-blog__categories-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 20px;
  margin-top: 40px;
}

.page-blog__category-card {
  background-color: rgba(255, 255, 255, 0.15);
  border-radius: 8px;
  padding: 25px;
  text-align: center;
  text-decoration: none;
  color: #FFFFFF;
  transition: background-color 0.3s ease, transform 0.3s ease;
  display: block;
}

.page-blog__category-card:hover {
  background-color: rgba(255, 255, 255, 0.25);
  transform: translateY(-5px);
}

.page-blog__category-title {
  font-size: 1.5rem;
  font-weight: 600;
  margin-bottom: 10px;
  color: #FFFFFF;
}

.page-blog__category-count {
  font-size: 0.9rem;
  opacity: 0.8;
  color: #FFFFFF;
}

.page-blog__featured-section {
  padding: 60px 0;
  background-color: #FFFFFF;
}

.page-blog__featured-content {
  display: flex;
  align-items: center;
  gap: 40px;
  background-color: #f0f8ff;
  border-radius: 8px;
  padding: 30px;
  box-shadow: 0 2px 10px rgba(0, 0, 0, 0.05);
}

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

.page-blog__featured-title {
  font-size: 1.8rem;
  color: #26A9E0;
  margin-bottom: 15px;
}

.page-blog__featured-description {
  font-size: 1.1rem;
  color: #555555;
  margin-bottom: 25px;
}

.page-blog__featured-image-wrapper {
  flex: 1;
  max-width: 50%;
}

.page-blog__featured-image {
  width: 100%;
  height: auto;
  border-radius: 8px;
  display: block;
}

.page-blog__faq-section {
  padding: 60px 0;
  background-color: #f9f9f9;
}

.page-blog__faq-list {
  max-width: 800px;
  margin: 40px auto 0 auto;
}

.page-blog__faq-item {
  background-color: #FFFFFF;
  border: 1px solid #e0e0e0;
  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: 1.1rem;
  font-weight: 600;
  color: #333333;
  cursor: pointer;
  background-color: #fefefe;
  transition: background-color 0.3s ease;
}

.page-blog__faq-question:hover {
  background-color: #f5f5f5;
}

.page-blog__faq-item[open] .page-blog__faq-question {
  background-color: #eaf7ff;
  color: #26A9E0;
}

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

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

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

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

.page-blog__faq-answer {
  padding: 0 20px 20px 20px;
  font-size: 1rem;
  color: #555555;
}

.page-blog__cta-section {
  padding: 80px 0;
  background-color: #26A9E0;
  text-align: center;
}

.page-blog__cta-content {
  max-width: 900px;
}

.page-blog__cta-buttons {
  margin-top: 40px;
  display: flex;
  justify-content: center;
  gap: 20px;
}

.page-blog__cta-button {
  max-width: 100%;
  box-sizing: border-box;
  white-space: normal;
  word-wrap: break-word;
}

/* 智能颜色对比度保障 */
.page-blog__light-bg {
  background-color: #FFFFFF;
  color: #333333;
}

.page-blog__dark-bg {
  background-color: #26A9E0;
  color: #FFFFFF;
}

.page-blog__dark-bg .page-blog__section-description {
  color: #f0f0f0;
}

/* Responsive adjustments */
@media (max-width: 992px) {
  .page-blog__hero-content {
    margin-top: -60px;
    padding: 30px 20px;
  }

  .page-blog__main-title {
    font-size: clamp(1.6rem, 4vw, 2.5rem);
  }

  .page-blog__featured-content {
    flex-direction: column;
    padding: 20px;
  }

  .page-blog__featured-image-wrapper {
    max-width: 100%;
  }
}

@media (max-width: 768px) {
  .page-blog {
    font-size: 16px;
    line-height: 1.6;
  }

  .page-blog__container {
    padding-left: 15px;
    padding-right: 15px;
  }

  .page-blog img {
    max-width: 100% !important;
    width: 100% !important;
    height: auto !important;
  }

  .page-blog video,
  .page-blog__video {
    max-width: 100% !important;
    width: 100% !important;
    height: auto !important;
    display: block !important;
  }

  .page-blog__video-section,
  .page-blog__video-container,
  .page-blog__video-wrapper {
    max-width: 100% !important;
    width: 100% !important;
    box-sizing: border-box !important;
    padding-left: 15px;
    padding-right: 15px;
    overflow: hidden !important;
  }
  
  .page-blog__video-section {
    padding-top: 10px !important;
  }

  .page-blog__section,
  .page-blog__card,
  .page-blog__container {
    max-width: 100% !important;
    width: 100% !important;
    box-sizing: border-box !important;
    padding-left: 15px;
    padding-right: 15px;
  }

  .page-blog__hero-content {
    margin-top: -40px;
    padding: 25px 15px;
  }

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

  .page-blog__section-title {
    font-size: 1.8rem;
  }

  .page-blog__articles-grid {
    grid-template-columns: 1fr;
  }

  .page-blog__category-card {
    padding: 20px;
  }

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

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

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

  .page-blog__cta-button,
  .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;
    padding-left: 15px;
    padding-right: 15px;
  }

  .page-blog__cta-buttons,
  .page-blog__button-group,
  .page-blog__btn-container {
    max-width: 100% !important;
    width: 100% !important;
    box-sizing: border-box !important;
    padding-left: 15px;
    padding-right: 15px;
    flex-wrap: wrap !important;
    gap: 10px;
  }
}

@media (max-width: 480px) {
  .page-blog__hero-content {
    margin-top: -30px;
  }

  .page-blog__main-title {
    font-size: 1.8rem;
  }

  .page-blog__section-title {
    font-size: 1.6rem;
  }

  .page-blog__btn-primary,
  .page-blog__btn-secondary {
    padding: 12px 25px;
  }
}