/* style/blog.css */
/* body đã padding-top: var(--header-offset)；tránh trùng lặp */
.page-blog {
  font-family: 'Arial', sans-serif;
  color: var(--text-main);
  background-color: var(--background-color);
}

.page-blog__hero-section {
  position: relative;
  width: 100%;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 10px 20px 60px; /* Nhấn mạnh padding-top nhỏ */
  background-color: var(--deep-green);
  overflow: hidden;
}

.page-blog__hero-image-wrapper {
  width: 100%;
  max-width: 1920px;
  margin-bottom: 30px;
}

.page-blog__hero-image {
  width: 100%;
  height: auto;
  display: block;
  border-radius: 8px;
  box-shadow: 0 8px 20px rgba(0, 0, 0, 0.3);
}

.page-blog__hero-content {
  text-align: center;
  max-width: 900px;
  padding: 0 20px;
  z-index: 1;
  color: var(--text-main);
}

.page-blog__main-title {
  font-size: clamp(2.2rem, 4vw, 3.5rem);
  font-weight: 700;
  line-height: 1.2;
  margin-bottom: 20px;
  color: var(--text-main);
  text-shadow: 0 2px 4px rgba(0, 0, 0, 0.5);
}

.page-blog__description {
  font-size: 1.15rem;
  line-height: 1.6;
  margin-bottom: 30px;
  color: var(--text-secondary);
}

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

.page-blog__btn-primary,
.page-blog__btn-secondary {
  display: inline-block;
  padding: 14px 30px;
  border-radius: 50px;
  text-decoration: none;
  font-weight: 600;
  font-size: 1rem;
  transition: all 0.3s ease;
  box-sizing: border-box;
  white-space: normal;
  word-wrap: break-word;
  max-width: 100%;
}

.page-blog__btn-primary {
  background: linear-gradient(180deg, #2AD16F 0%, #13994A 100%);
  color: #ffffff;
  border: 2px solid transparent;
  box-shadow: 0 4px 15px rgba(0, 0, 0, 0.2);
}

.page-blog__btn-primary:hover {
  transform: translateY(-3px);
  box-shadow: 0 6px 20px rgba(0, 0, 0, 0.3);
}

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

.page-blog__btn-secondary:hover {
  background-color: var(--glow);
  color: var(--deep-green);
  transform: translateY(-3px);
}

.page-blog__section-title {
  font-size: clamp(1.8rem, 3.5vw, 2.8rem);
  font-weight: 700;
  color: var(--text-main);
  text-align: center;
  margin-bottom: 50px;
  padding-top: 40px;
  position: relative;
}

.page-blog__section-title::after {
  content: '';
  display: block;
  width: 80px;
  height: 4px;
  background: linear-gradient(90deg, #2AD16F, #13994A);
  margin: 15px auto 0;
  border-radius: 2px;
}

.page-blog__featured-articles-section,
.page-blog__in-depth-categories-section,
.page-blog__news-events-section,
.page-blog__faq-section,
.page-blog__conclusion-section {
  max-width: 1200px;
  margin: 0 auto;
  padding: 60px 20px;
}

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

.page-blog__article-card,
.page-blog__category-card,
.page-blog__news-card {
  background-color: var(--card-bg);
  border-radius: 12px;
  overflow: hidden;
  box-shadow: 0 6px 20px rgba(0, 0, 0, 0.2);
  transition: transform 0.3s ease, box-shadow 0.3s ease;
  border: 1px solid var(--border-color);
}

.page-blog__article-card:hover,
.page-blog__category-card:hover,
.page-blog__news-card:hover {
  transform: translateY(-8px);
  box-shadow: 0 12px 30px rgba(0, 0, 0, 0.35);
}

.page-blog__article-thumbnail,
.page-blog__category-image,
.page-blog__news-thumbnail {
  width: 100%;
  height: 220px; /* Fixed height for consistency */
  object-fit: cover;
  display: block;
}

.page-blog__article-content,
.page-blog__news-content {
  padding: 25px;
}

.page-blog__article-title,
.page-blog__news-title {
  font-size: 1.4rem;
  font-weight: 600;
  margin-bottom: 15px;
  line-height: 1.4;
}

.page-blog__article-title a,
.page-blog__news-title a,
.page-blog__category-title a {
  color: var(--text-main);
  text-decoration: none;
  transition: color 0.3s ease;
}

.page-blog__article-title a:hover,
.page-blog__news-title a:hover,
.page-blog__category-title a:hover {
  color: var(--glow);
}

.page-blog__article-excerpt,
.page-blog__category-description,
.page-blog__news-excerpt {
  font-size: 0.95rem;
  color: var(--text-secondary);
  line-height: 1.6;
  margin-bottom: 20px;
}

.page-blog__read-more {
  display: inline-block;
  color: var(--glow);
  text-decoration: none;
  font-weight: 600;
  font-size: 0.95rem;
  transition: color 0.3s ease;
}

.page-blog__read-more:hover {
  text-decoration: underline;
  color: #57E38D;
}

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

.page-blog__category-title {
  padding: 20px 25px 0;
  font-size: 1.4rem;
  font-weight: 600;
  line-height: 1.4;
}

.page-blog__category-description {
  padding: 0 25px 20px;
}

.page-blog__faq-list {
  display: flex;
  flex-direction: column;
  gap: 15px;
}

.page-blog__faq-item {
  background-color: var(--card-bg);
  border-radius: 10px;
  border: 1px solid var(--border-color);
  overflow: hidden;
  box-shadow: 0 4px 15px rgba(0, 0, 0, 0.1);
}

.page-blog__faq-item summary {
  list-style: none;
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 20px 25px;
  cursor: pointer;
  font-size: 1.15rem;
  font-weight: 600;
  color: var(--text-main);
  position: relative;
  transition: background-color 0.3s ease;
}

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

.page-blog__faq-item summary:hover {
  background-color: rgba(34, 199, 104, 0.1);
}

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

.page-blog__faq-toggle {
  font-size: 1.8rem;
  line-height: 1;
  margin-left: 20px;
  color: var(--glow);
}

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

.page-blog__faq-answer {
  padding: 0 25px 20px;
  font-size: 1rem;
  line-height: 1.7;
  color: var(--text-secondary);
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.3s ease-out, padding 0.3s ease-out;
}

.page-blog__faq-item[open] .page-blog__faq-answer {
  max-height: 500px; /* Adjust as needed */
  padding-top: 10px;
  padding-bottom: 20px;
}

.page-blog__faq-answer p {
  margin-bottom: 0;
}

.page-blog__faq-answer a {
  color: var(--glow);
  text-decoration: underline;
}

.page-blog__conclusion-text {
  font-size: 1.1rem;
  line-height: 1.7;
  color: var(--text-secondary);
  text-align: center;
  max-width: 800px;
  margin: 0 auto 40px;
}

/* Media Queries for Responsiveness */
@media (max-width: 1024px) {
  .page-blog__main-title {
    font-size: clamp(2rem, 5vw, 3rem);
  }
  .page-blog__description {
    font-size: 1rem;
  }
  .page-blog__section-title {
    font-size: clamp(1.6rem, 4vw, 2.4rem);
  }
  .page-blog__article-thumbnail,
  .page-blog__category-image,
  .page-blog__news-thumbnail {
    height: 180px;
  }
}

@media (max-width: 768px) {
  .page-blog__hero-section {
    padding: 10px 15px 40px;
  }
  .page-blog__hero-image-wrapper {
    margin-bottom: 20px;
  }
  .page-blog__hero-content {
    padding: 0 15px;
  }
  .page-blog__main-title {
    font-size: clamp(1.8rem, 6vw, 2.5rem);
  }
  .page-blog__description {
    font-size: 0.95rem;
    margin-bottom: 25px;
  }
  .page-blog__cta-buttons {
    flex-direction: column;
    gap: 15px;
    width: 100%;
  }
  .page-blog__btn-primary,
  .page-blog__btn-secondary {
    width: 100% !important;
    max-width: 100% !important;
    padding: 12px 20px;
    font-size: 0.95rem;
    text-align: center;
    padding-left: 15px;
    padding-right: 15px;
  }
  .page-blog__featured-articles-section,
  .page-blog__in-depth-categories-section,
  .page-blog__news-events-section,
  .page-blog__faq-section,
  .page-blog__conclusion-section {
    padding: 40px 15px;
    max-width: 100% !important;
    width: 100% !important;
    box-sizing: border-box !important;
  }
  .page-blog__article-grid,
  .page-blog__category-grid,
  .page-blog__news-grid {
    grid-template-columns: 1fr;
    gap: 25px;
  }
  .page-blog__article-card,
  .page-blog__category-card,
  .page-blog__news-card {
    max-width: 100% !important;
    width: 100% !important;
    box-sizing: border-box !important;
  }
  .page-blog__article-thumbnail,
  .page-blog__category-image,
  .page-blog__news-thumbnail {
    height: 200px !important;
    max-width: 100% !important;
    width: 100% !important;
    display: block !important;
  }
  .page-blog__article-content,
  .page-blog__news-content {
    padding: 20px;
  }
  .page-blog__article-title,
  .page-blog__news-title {
    font-size: 1.25rem;
  }
  .page-blog__faq-item summary {
    font-size: 1rem;
    padding: 18px 20px;
  }
  .page-blog__faq-toggle {
    font-size: 1.5rem;
  }
  .page-blog__faq-answer {
    padding: 0 20px 18px;
    font-size: 0.95rem;
  }
  .page-blog img {
    max-width: 100% !important;
    width: 100% !important;
    height: auto !important;
    display: block !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__video-wrapper {
    max-width: 100% !important;
    width: 100% !important;
    box-sizing: border-box !important;
  }
  .page-blog__cta-buttons {
    flex-wrap: wrap !important;
    gap: 10px;
  }
}

@media (max-width: 480px) {
  .page-blog__main-title {
    font-size: clamp(1.6rem, 7vw, 2.2rem);
  }
  .page-blog__section-title {
    font-size: clamp(1.4rem, 5vw, 2rem);
    margin-bottom: 30px;
  }
  .page-blog__hero-section {
    padding-bottom: 30px;
  }
  .page-blog__article-thumbnail,
  .page-blog__category-image,
  .page-blog__news-thumbnail {
    height: 160px !important;
  }
  .page-blog__article-title,
  .page-blog__news-title,
  .page-blog__category-title {
    font-size: 1.15rem;
  }
  .page-blog__article-excerpt,
  .page-blog__category-description,
  .page-blog__news-excerpt {
    font-size: 0.9rem;
  }
  .page-blog__faq-item summary {
    font-size: 0.95rem;
    padding: 15px 18px;
  }
  .page-blog__faq-toggle {
    font-size: 1.4rem;
  }
  .page-blog__faq-answer {
    padding: 0 18px 15px;
    font-size: 0.9rem;
  }
  .page-blog__conclusion-text {
    font-size: 1rem;
  }
}