/* style/blog.css */

/* body đã padding-top: var(--header-offset); trang này không được thêm lại padding-top */

:root {
  --page-blog-primary-color: #11A84E;
  --page-blog-secondary-color: #22C768;
  --page-blog-background-color: #08160F;
  --page-blog-card-bg: #11271B;
  --page-blog-text-main: #F2FFF6;
  --page-blog-text-secondary: #A7D9B8;
  --page-blog-border-color: #2E7A4E;
  --page-blog-glow-color: #57E38D;
  --page-blog-gold-color: #F2C14E;
  --page-blog-divider-color: #1E3A2A;
  --page-blog-deep-green: #0A4B2C;
  --page-blog-button-gradient: linear-gradient(180deg, #2AD16F 0%, #13994A 100%);
}

.page-blog {
  font-family: 'Arial', sans-serif;
  line-height: 1.6;
  color: var(--page-blog-text-main); /* Mặc định cho nền tối */
  background-color: var(--page-blog-background-color);
}

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

.page-blog__section-title {
  font-size: clamp(2rem, 4vw, 2.8rem);
  color: var(--page-blog-text-main);
  text-align: center;
  margin-bottom: 40px;
  font-weight: 700;
  letter-spacing: 0.05em;
}

.page-blog__description {
  font-size: 1.1rem;
  text-align: center;
  max-width: 800px;
  margin: 0 auto 30px auto;
  color: var(--page-blog-text-secondary);
}

.page-blog__hero-section {
  position: relative;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: 80px 0 40px 0;
  padding-top: 10px; /* Small top padding, body handles header offset */
  overflow: hidden;
  background-color: var(--page-blog-background-color);
}

.page-blog__hero-image-wrapper {
  width: 100%;
  max-height: 70vh; /* Giới hạn chiều cao hình ảnh chính */
  overflow: hidden;
  display: flex;
  justify-content: center;
  align-items: center;
}

.page-blog__hero-image {
  width: 100%;
  height: auto;
  display: block;
  object-fit: cover;
  min-height: 200px; /* Đảm bảo kích thước tối thiểu */
}

.page-blog__hero-content {
  position: relative;
  z-index: 2;
  padding: 20px;
  max-width: 900px;
  margin-top: 20px;
}

.page-blog__main-title {
  font-size: clamp(2.5rem, 5vw, 3.5rem);
  color: var(--page-blog-gold-color);
  margin-bottom: 15px;
  font-weight: 800;
  line-height: 1.2;
  text-shadow: 0 0 10px rgba(87, 227, 141, 0.5);
}

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

.page-blog__btn-primary,
.page-blog__btn-secondary {
  display: inline-block;
  padding: 14px 30px;
  border-radius: 8px;
  text-decoration: none;
  font-weight: 700;
  font-size: 1.1rem;
  transition: all 0.3s ease;
  box-sizing: border-box;
  max-width: 100%;
  white-space: normal;
  word-wrap: break-word;
  text-align: center;
}

.page-blog__btn-primary {
  background: var(--page-blog-button-gradient);
  color: #ffffff; /* Luôn dùng chữ trắng cho nút chính */
  border: 2px solid transparent;
  box-shadow: 0 4px 15px rgba(17, 168, 78, 0.4);
}

.page-blog__btn-primary:hover {
  transform: translateY(-3px);
  box-shadow: 0 6px 20px rgba(17, 168, 78, 0.6);
}

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

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

.page-blog__intro-section,
.page-blog__faq-section {
  background-color: #ffffff;
  color: #333333; /* Nền sáng dùng chữ tối */
  padding: 60px 0;
}

.page-blog__intro-section .page-blog__section-title,
.page-blog__faq-section .page-blog__section-title {
  color: #333333;
}

.page-blog__intro-section .page-blog__description {
  color: #555555;
}

.page-blog__content-area {
  max-width: 900px;
  margin: 0 auto;
  padding: 0 20px;
  font-size: 1.05rem;
  line-height: 1.7;
}

.page-blog__content-area p {
  margin-bottom: 20px;
}

.page-blog__featured-articles {
  background-color: var(--page-blog-background-color);
  padding: 80px 0;
}

.page-blog__articles-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 30px;
  margin-top: 40px;
}

.page-blog__article-card {
  background-color: var(--page-blog-card-bg);
  border-radius: 12px;
  overflow: hidden;
  text-decoration: none;
  color: var(--page-blog-text-main);
  box-shadow: 0 8px 20px rgba(0, 0, 0, 0.2);
  transition: transform 0.3s ease, box-shadow 0.3s ease;
  display: flex;
  flex-direction: column;
  min-height: 400px; /* Đảm bảo chiều cao tối thiểu cho card */
}

.page-blog__article-card:hover {
  transform: translateY(-8px);
  box-shadow: 0 12px 25px rgba(0, 0, 0, 0.3);
}

.page-blog__card-image {
  width: 100%;
  height: 225px; /* Chiều cao cố định cho hình ảnh card (16:9 cho 400x225) */
  object-fit: cover;
  display: block;
  min-height: 200px; /* Đảm bảo kích thước tối thiểu */
}

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

.page-blog__card-title {
  font-size: 1.4rem;
  font-weight: 700;
  margin-bottom: 10px;
  color: var(--page-blog-text-main);
  line-height: 1.3;
}

.page-blog__card-excerpt {
  font-size: 0.95rem;
  color: var(--page-blog-text-secondary);
  margin-bottom: 15px;
  flex-grow: 1;
}

.page-blog__card-date {
  font-size: 0.85rem;
  color: var(--page-blog-text-secondary);
  opacity: 0.8;
}

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

.page-blog__video-section {
  padding: 80px 0;
  background-color: var(--page-blog-deep-green);
  text-align: center;
}

.page-blog__video-wrapper {
  position: relative;
  padding-bottom: 56.25%; /* 16:9 Aspect Ratio */
  height: 0;
  overflow: hidden;
  margin: 40px auto;
  max-width: 960px; /* Kích thước tối đa cho video */
  border-radius: 12px;
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.4);
  width: 100%; /* Đảm bảo width 100% trên desktop */
  box-sizing: border-box;
}

.page-blog__video {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  border: none;
  display: block; /* Đảm bảo video là block element */
  cursor: pointer;
  min-height: 200px; /* Đảm bảo kích thước tối thiểu */
}

.page-blog__video-cta {
  margin-top: 40px;
}

.page-blog__faq-list {
  margin-top: 40px;
  max-width: 900px;
  margin-left: auto;
  margin-right: auto;
}

.page-blog__faq-item {
  background-color: #f9f9f9;
  border: 1px solid #e0e0e0;
  border-radius: 8px;
  margin-bottom: 15px;
  overflow: hidden;
  color: #333333;
}

.page-blog__faq-question {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 18px 25px;
  cursor: pointer;
  font-weight: 700;
  font-size: 1.1rem;
  background-color: #f0f0f0;
  color: #333333;
  list-style: none; /* For details summary */
}

.page-blog__faq-item summary::-webkit-details-marker {
  display: none; /* Hide default marker for Chrome */
}

.page-blog__faq-toggle {
  font-size: 1.5rem;
  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: 15px 25px 20px 25px;
  font-size: 1rem;
  line-height: 1.7;
  color: #555555;
}

.page-blog__cta-banner {
  padding: 80px 0;
  background-color: var(--page-blog-background-color);
  text-align: center;
  overflow: hidden;
  position: relative;
}

.page-blog__cta-banner .page-blog__container {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  position: relative;
  z-index: 1;
}

.page-blog__cta-image {
  width: 100%;
  height: auto;
  max-width: 1200px;
  display: block;
  border-radius: 12px;
  margin-bottom: 30px;
  box-shadow: 0 8px 25px rgba(0, 0, 0, 0.3);
  min-height: 200px; /* Đảm bảo kích thước tối thiểu */
}

.page-blog__cta-content {
  max-width: 800px;
}

.page-blog__cta-title {
  font-size: clamp(2rem, 4.5vw, 3rem);
  color: var(--page-blog-gold-color);
  margin-bottom: 15px;
  font-weight: 700;
}

.page-blog__cta-description {
  font-size: 1.15rem;
  color: var(--page-blog-text-secondary);
  margin-bottom: 30px;
}

/* Media Queries for Responsiveness */
@media (max-width: 1024px) {
  .page-blog__hero-content {
    padding: 15px;
  }

  .page-blog__articles-grid {
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  }

  .page-blog__video-wrapper {
    max-width: 800px;
  }
}

@media (max-width: 768px) {
  .page-blog__container {
    padding: 0 15px;
  }

  .page-blog__section-title {
    font-size: clamp(1.8rem, 6vw, 2.5rem);
    margin-bottom: 30px;
  }

  .page-blog__description {
    font-size: 1rem;
    margin-bottom: 25px;
  }

  .page-blog__main-title {
    font-size: clamp(2rem, 7vw, 3rem);
  }

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

  .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;
  }

  .page-blog__hero-section,
  .page-blog__intro-section,
  .page-blog__featured-articles,
  .page-blog__video-section,
  .page-blog__faq-section,
  .page-blog__cta-banner {
    padding: 40px 0;
  }
  
  .page-blog__video-section {
    padding-top: 10px !important; /* body đã xử lý --header-offset */
  }

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

  .page-blog__article-card {
    min-height: auto;
  }

  .page-blog__card-image {
    height: 200px;
  }

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

  .page-blog__video-wrapper {
    margin: 30px auto;
    width: 100% !important;
    max-width: 100% !important;
    box-sizing: border-box !important;
    overflow: hidden !important;
  }

  .page-blog__video {
    max-width: 100% !important;
    width: 100% !important;
    height: auto !important;
    display: block !important;
  }
  
  .page-blog__hero-image,
  .page-blog__card-image,
  .page-blog__cta-image,
  .page-blog img {
    max-width: 100% !important;
    width: 100% !important;
    height: auto !important;
    display: block !important;
  }

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

  .page-blog__faq-answer {
    padding: 10px 20px 15px 20px;
  }
}

@media (max-width: 480px) {
  .page-blog__main-title {
    font-size: clamp(1.8rem, 8vw, 2.5rem);
  }

  .page-blog__btn-primary,
  .page-blog__btn-secondary {
    padding: 12px 20px;
    font-size: 1rem;
  }

  .page-blog__cta-title {
    font-size: clamp(1.8rem, 7vw, 2.5rem);
  }

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