/* style/blog.css */
/* body đã padding-top: var(--header-offset)；trang này cấm viết lại biến đó */

.page-blog {
  font-family: Arial, sans-serif;
  line-height: 1.6;
  color: var(--text-main); /* Sử dụng màu chữ chính */
  background-color: var(--background); /* Sử dụng màu nền chính */
}

/* Hero Section */
.page-blog__hero-section {
  position: relative;
  width: 100%;
  display: flex;
  flex-direction: column; /* Đảm bảo hình ảnh ở trên, nội dung ở dưới */
  align-items: center;
  justify-content: center;
  padding: 60px 20px;
  padding-top: 10px; /* Chỉ một khoảng đệm nhỏ, body đã xử lý header offset */
  background-color: var(--card-bg); /* Màu nền tối cho section hero */
  overflow: hidden;
}

.page-blog__hero-image-container {
  width: 100%;
  max-width: 100%;
  margin-bottom: 30px; /* Khoảng cách giữa hình ảnh và nội dung */
  position: relative;
  z-index: 1; /* Đảm bảo hình ảnh không bị nội dung đè lên */
}

.page-blog__hero-image {
  width: 100%;
  height: auto;
  display: block;
  border-radius: 8px;
  box-shadow: 0 4px 15px rgba(0, 0, 0, 0.3);
}

.page-blog__hero-content {
  text-align: center;
  max-width: 800px;
  position: relative;
  z-index: 2; /* Đảm bảo nội dung hiển thị trên hình ảnh nếu có bất kỳ sự chồng chéo nào */
  color: var(--text-main); /* Màu chữ chính trên nền tối */
}

.page-blog__main-title {
  font-size: clamp(2.2em, 4vw, 3.5em); /* Sử dụng clamp cho kích thước H1 */
  font-weight: 700;
  color: var(--text-main);
  margin-bottom: 20px;
  line-height: 1.2;
  letter-spacing: -0.02em;
}

.page-blog__description {
  font-size: 1.1em;
  color: var(--text-secondary);
  margin-bottom: 30px;
  max-width: 700px;
  margin-left: auto;
  margin-right: auto;
}

/* General Section Styling */
.page-blog__section {
  padding: 80px 20px;
  text-align: center;
  background-color: var(--background);
}

.page-blog__dark-bg {
  background-color: var(--card-bg);
  color: var(--text-main);
}

.page-blog__text-main {
  color: var(--text-main);
}

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

.page-blog__section-title {
  font-size: 2.5em;
  color: var(--text-main);
  margin-bottom: 20px;
  font-weight: 700;
}

.page-blog__section-description {
  font-size: 1.1em;
  color: var(--text-secondary);
  margin-bottom: 40px;
  max-width: 800px;
  margin-left: auto;
  margin-right: auto;
}

/* Buttons */
.page-blog__btn-primary {
  display: inline-block;
  padding: 15px 30px;
  background: linear-gradient(180deg, #2AD16F 0%, #13994A 100%);
  color: #F2FFF6; /* Text Main */
  text-decoration: none;
  border-radius: 50px;
  font-weight: bold;
  transition: transform 0.3s ease, box-shadow 0.3s ease;
  box-shadow: 0 5px 15px rgba(0, 0, 0, 0.2);
  border: none;
  cursor: pointer;
  max-width: 100%; /* Đảm bảo nút không tràn */
  box-sizing: border-box;
  white-space: normal; /* Cho phép chữ xuống dòng */
  word-wrap: break-word;
}

.page-blog__btn-primary:hover {
  transform: translateY(-3px);
  box-shadow: 0 8px 20px rgba(0, 0, 0, 0.3);
}

.page-blog__btn-secondary {
  display: inline-block;
  padding: 12px 25px;
  background: transparent;
  color: var(--text-main);
  border: 2px solid var(--border);
  text-decoration: none;
  border-radius: 50px;
  font-weight: bold;
  transition: background-color 0.3s ease, color 0.3s ease;
  cursor: pointer;
  max-width: 100%; /* Đảm bảo nút không tràn */
  box-sizing: border-box;
  white-space: normal; /* Cho phép chữ xuống dòng */
  word-wrap: break-word;
}

.page-blog__btn-secondary:hover {
  background-color: var(--border);
  color: var(--text-main); /* Màu chữ trên nền tối */
}

/* Post Grid */
.page-blog__post-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 30px;
  margin-top: 50px;
}

.page-blog__post-card {
  background-color: var(--card-bg);
  border-radius: 12px;
  overflow: hidden;
  text-align: left;
  box-shadow: 0 4px 10px rgba(0, 0, 0, 0.1);
  transition: transform 0.3s ease, box-shadow 0.3s ease;
  color: var(--text-main);
}

.page-blog__post-card:hover {
  transform: translateY(-5px);
  box-shadow: 0 8px 20px rgba(0, 0, 0, 0.2);
}

.page-blog__post-image {
  width: 100%;
  height: 225px; /* Fixed height for consistency, adjust as needed */
  object-fit: cover;
  display: block;
}

.page-blog__post-content {
  padding: 25px;
}

.page-blog__post-title {
  font-size: 1.5em;
  margin-bottom: 10px;
  line-height: 1.3;
}

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

.page-blog__post-title a:hover {
  color: var(--glow); /* Màu sáng khi hover */
}

.page-blog__post-meta {
  font-size: 0.9em;
  color: var(--text-secondary);
  margin-bottom: 15px;
}

.page-blog__post-excerpt {
  font-size: 1em;
  color: var(--text-secondary);
  margin-bottom: 20px;
}

.page-blog__read-more {
  color: var(--glow);
  text-decoration: none;
  font-weight: bold;
  transition: color 0.3s ease;
}

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

.page-blog__view-all {
  margin-top: 50px;
}

/* Categories Section */
.page-blog__category-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 30px;
  margin-top: 50px;
}

.page-blog__category-card {
  background-color: var(--background);
  border-radius: 12px;
  padding: 30px;
  text-align: center;
  box-shadow: 0 4px 10px rgba(0, 0, 0, 0.1);
  transition: transform 0.3s ease, box-shadow 0.3s ease;
  text-decoration: none;
  color: var(--text-main);
}

.page-blog__category-card:hover {
  transform: translateY(-5px);
  box-shadow: 0 8px 20px rgba(0, 0, 0, 0.2);
}

.page-blog__category-icon {
  width: 100px;
  height: 75px; /* Adjusted height for category icons based on 400x300 ratio */
  object-fit: contain;
  margin-bottom: 20px;
  display: block;
  margin-left: auto;
  margin-right: auto;
}

.page-blog__category-title {
  font-size: 1.4em;
  color: var(--text-main);
  margin-bottom: 10px;
}

.page-blog__category-description {
  font-size: 0.95em;
  color: var(--text-secondary);
}

/* Featured Article */
.page-blog__featured-article {
  padding: 80px 20px;
  background-color: var(--background);
}

.page-blog__featured-card {
  display: flex;
  background-color: var(--card-bg);
  border-radius: 12px;
  overflow: hidden;
  box-shadow: 0 6px 20px rgba(0, 0, 0, 0.2);
  margin-top: 50px;
  text-align: left;
  color: var(--text-main);
}

.page-blog__featured-image {
  width: 50%;
  height: auto;
  object-fit: cover;
  display: block;
}

.page-blog__featured-content {
  padding: 40px;
  width: 50%;
  display: flex;
  flex-direction: column;
  justify-content: center;
}

.page-blog__featured-title {
  font-size: 2em;
  margin-bottom: 15px;
  line-height: 1.2;
  color: var(--text-main);
}

.page-blog__featured-excerpt {
  font-size: 1.05em;
  color: var(--text-secondary);
  margin-bottom: 30px;
}

/* FAQ Section */
.page-blog__faq-section {
  background-color: var(--background);
  padding-bottom: 80px;
}

.page-blog__faq-list {
  max-width: 900px;
  margin: 50px auto 0 auto;
  text-align: left;
}

.page-blog__faq-item {
  background-color: var(--card-bg);
  border-radius: 10px;
  margin-bottom: 15px;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
  overflow: hidden;
  color: var(--text-main);
}

.page-blog__faq-question {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 20px 25px;
  font-size: 1.2em;
  font-weight: bold;
  cursor: pointer;
  background-color: var(--card-bg);
  color: var(--text-main);
  transition: background-color 0.3s ease;
}

.page-blog__faq-item summary {
  list-style: none; /* Hide default marker */
}

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

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

.page-blog__faq-toggle {
  font-size: 1.5em;
  line-height: 1;
  margin-left: 15px;
  color: var(--glow);
}

.page-blog__faq-answer {
  padding: 0 25px 20px 25px;
  font-size: 1em;
  color: var(--text-secondary);
  line-height: 1.6;
}

/* Responsive Design */
@media (max-width: 1024px) {
  .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,
  .page-blog__featured-content {
    width: 100%;
  }

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

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

@media (max-width: 768px) {
  /* Global responsive for images, videos, buttons */
  .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__section,
  .page-blog__card,
  .page-blog__container,
  .page-blog__hero-section,
  .page-blog__post-card,
  .page-blog__category-card,
  .page-blog__featured-card,
  .page-blog__faq-item,
  .page-blog__video-section,
  .page-blog__video-container,
  .page-blog__video-wrapper,
  .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 !important;
    padding-right: 15px !important;
    overflow: hidden !important; /* Ensure no horizontal scroll */
  }

  .page-blog__hero-section {
    padding: 40px 15px;
    padding-top: 10px !important; /* body đã xử lý --header-offset, ở đây cấm var(--header-offset) */
  }
  
  .page-blog__video-section {
    padding-top: 10px !important; /* body đã xử lý --header-offset, ở đây cấm var(--header-offset) */
  }

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

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

  .page-blog__post-grid,
  .page-blog__category-grid {
    grid-template-columns: 1fr;
  }

  .page-blog__post-image {
    height: auto; /* Allow height to adjust naturally */
  }

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

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

  /* Buttons mobile adaptation */
  .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 !important;
    padding-right: 15px !important;
    margin-bottom: 10px; /* Add spacing between stacked buttons */
  }

  .page-blog__cta-buttons,
  .page-blog__button-group,
  .page-blog__btn-container {
    display: flex !important;
    flex-direction: column !important; /* Stack buttons vertically */
    gap: 10px !important; /* Space between stacked buttons */
    padding-left: 15px !important;
    padding-right: 15px !important;
  }
}

@media (max-width: 480px) {
  .page-blog__hero-section,
  .page-blog__section {
    padding: 30px 10px;
    padding-top: 10px !important; /* body đã xử lý --header-offset, ở đây cấm var(--header-offset) */
  }

  .page-blog__main-title {
    font-size: clamp(1.5em, 8vw, 2.2em);
  }

  .page-blog__section-title {
    font-size: 1.5em;
  }

  .page-blog__post-content,
  .page-blog__category-card,
  .page-blog__featured-content,
  .page-blog__faq-question,
  .page-blog__faq-answer {
    padding-left: 15px;
    padding-right: 15px;
  }
}

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

/* Ensure contrast for all text elements */
.page-blog h1, .page-blog h2, .page-blog h3, .page-blog h4, .page-blog h5, .page-blog h6 {
  color: var(--text-main);
}

.page-blog p, .page-blog li {
  color: var(--text-secondary);
}

.page-blog__card {
  background-color: var(--card-bg);
  color: var(--text-main);
}

.page-blog__btn-primary {
  background: var(--button-gradient);
  color: var(--text-main);
}

.page-blog__btn-secondary {
  color: var(--text-main);
  border-color: var(--border);
}

.page-blog__btn-secondary:hover {
  background-color: var(--border);
  color: var(--text-main); /* Ensure text color remains light on dark hover background */
}

/* Specific contrast adjustments */
.page-blog__hero-content .page-blog__description {
  color: var(--text-secondary); /* Text secondary on dark background */
}

.page-blog__section-description {
  color: var(--text-secondary);
}

.page-blog__post-title a:hover {
  color: var(--glow);
}

.page-blog__read-more {
  color: var(--glow);
}