/* style/blog.css */
/* body đã padding-top: var(--header-offset) từ shared.css; trang này không cần thêm padding-top cho main hoặc các section đầu tiên. */

:root {
  --primary-color: #26A9E0;
  --secondary-color: #FFFFFF;
  --dark-text-color: #333333;
  --light-text-color: #ffffff;
  --background-dark: #0a0a0a;
  --card-bg-dark-mode: rgba(255, 255, 255, 0.1);
}

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

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

/* Hero Section */
.page-blog__hero-section {
  position: relative;
  width: 100%;
  display: flex;
  flex-direction: column;
  align-items: center;
  padding: 60px 20px;
  padding-top: 10px; /* Small top padding, header offset handled by body */
  background-color: var(--background-dark);
  text-align: center;
}

.page-blog__hero-image-wrapper {
  width: 100%;
  max-width: 1200px;
  margin-bottom: 30px;
}

.page-blog__hero-image {
  width: 100%;
  height: auto;
  display: block;
  border-radius: 8px;
  object-fit: cover;
}

.page-blog__hero-content {
  max-width: 900px;
  color: var(--light-text-color);
}

.page-blog__main-title {
  font-weight: bold;
  line-height: 1.2;
  letter-spacing: -0.02em;
  color: var(--primary-color);
  margin-bottom: 20px;
  /* Using clamp for responsive font size, avoiding fixed large values */
  font-size: clamp(2.2rem, 4vw, 3.5rem);
}

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

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

.page-blog__btn-primary,
.page-blog__btn-secondary {
  display: inline-block;
  padding: 15px 30px;
  border-radius: 8px;
  text-decoration: none;
  font-weight: bold;
  transition: all 0.3s ease;
  box-sizing: border-box;
  max-width: 100%;
  white-space: normal;
  word-wrap: break-word;
}

.page-blog__btn-primary {
  background-color: var(--primary-color);
  color: var(--light-text-color);
  border: 2px solid var(--primary-color);
}

.page-blog__btn-primary:hover {
  background-color: darken(var(--primary-color), 10%);
  border-color: darken(var(--primary-color), 10%);
}

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

.page-blog__btn-secondary:hover {
  background-color: var(--primary-color);
  color: var(--light-text-color);
}

/* Blog List Section */
.page-blog__blog-list {
  padding: 80px 0;
  background-color: var(--secondary-color); /* Light background for blog list */
  color: var(--dark-text-color);
}

.page-blog__section-title {
  font-size: 2.5rem;
  color: var(--primary-color);
  text-align: center;
  margin-bottom: 50px;
}

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

.page-blog__card {
  background-color: var(--secondary-color);
  border-radius: 8px;
  box-shadow: 0 4px 15px rgba(0, 0, 0, 0.1);
  overflow: hidden;
  transition: transform 0.3s ease, box-shadow 0.3s ease;
  color: var(--dark-text-color);
}

.page-blog__card:hover {
  transform: translateY(-5px);
  box-shadow: 0 6px 20px rgba(0, 0, 0, 0.15);
}

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

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

.page-blog__card-title {
  font-size: 1.4rem;
  margin-bottom: 10px;
  min-height: 60px; /* Ensure consistent card height */
}

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

.page-blog__card-title a:hover {
  color: var(--primary-color);
}

.page-blog__card-meta {
  font-size: 0.9rem;
  color: #666;
  margin-bottom: 15px;
}

.page-blog__card-excerpt {
  font-size: 1rem;
  color: #555;
  margin-bottom: 20px;
}

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

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

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

.page-blog__btn-view-all {
  min-width: 200px;
}

/* Featured Guide Section */
.page-blog__featured-guide {
  padding: 80px 0;
  background-color: var(--background-dark);
  color: var(--light-text-color);
}

.page-blog__featured-guide .page-blog__section-title {
  color: var(--primary-color);
}

.page-blog__content-area {
  max-width: 900px;
  margin: 0 auto;
  padding: 0 20px;
  color: var(--light-text-color);
}

.page-blog__content-area p {
  margin-bottom: 20px;
  font-size: 1.1rem;
  color: var(--light-text-color);
}

.page-blog__content-area strong {
  color: var(--primary-color);
}

.page-blog__sub-title {
  font-size: 1.8rem;
  color: var(--primary-color);
  margin-top: 40px;
  margin-bottom: 20px;
}

.page-blog__content-image {
  width: 100%;
  height: auto;
  display: block;
  border-radius: 8px;
  margin: 30px 0;
  object-fit: cover;
}

.page-blog__content-area ul,
.page-blog__content-area ol {
  margin-bottom: 20px;
  padding-left: 25px;
  list-style-type: disc;
}

.page-blog__content-area ol {
  list-style-type: decimal;
}

.page-blog__content-area li {
  margin-bottom: 10px;
  font-size: 1.1rem;
  color: var(--light-text-color);
}

/* FAQ Section */
.page-blog__faq-section {
  padding: 80px 0;
  background-color: var(--secondary-color);
  color: var(--dark-text-color);
}

.page-blog__faq-section .page-blog__section-title {
  color: var(--primary-color);
}

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

.page-blog__faq-item {
  background-color: var(--secondary-color);
  border: 1px solid #e0e0e0;
  border-radius: 8px;
  margin-bottom: 15px;
  overflow: hidden;
  color: var(--dark-text-color);
}

.page-blog__faq-item summary {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 20px 25px;
  font-size: 1.2rem;
  font-weight: bold;
  cursor: pointer;
  list-style: none; /* Remove default marker */
  color: var(--dark-text-color);
}

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

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

.page-blog__faq-toggle {
  font-size: 1.5rem;
  font-weight: normal;
  margin-left: 15px;
  color: var(--primary-color);
}

.page-blog__faq-answer {
  padding: 0 25px 20px;
  font-size: 1rem;
  color: #555;
}

.page-blog__faq-item[open] .page-blog__faq-answer {
  border-top: 1px solid #eee;
  padding-top: 20px;
}

/* CTA Section */
.page-blog__cta-section {
  padding: 80px 0;
  text-align: center;
  background-color: var(--background-dark);
  color: var(--light-text-color);
}

.page-blog__cta-section .page-blog__section-title {
  color: var(--primary-color);
}

.page-blog__cta-section .page-blog__description {
  max-width: 800px;
  margin-left: auto;
  margin-right: auto;
  margin-bottom: 40px;
  color: var(--light-text-color);
}

/* Responsive Design */
@media (max-width: 1024px) {
  .page-blog__main-title {
    font-size: clamp(2rem, 5vw, 3rem);
  }
  .page-blog__description {
    font-size: 1.1rem;
  }
  .page-blog__card-image {
    height: 200px;
  }
}

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

  .page-blog__hero-section,
  .page-blog__blog-list,
  .page-blog__featured-guide,
  .page-blog__faq-section,
  .page-blog__cta-section {
    padding: 40px 0;
  }

  .page-blog__container,
  .page-blog__content-area,
  .page-blog__faq-list {
    padding-left: 15px !important;
    padding-right: 15px !important;
    max-width: 100% !important;
    width: 100% !important;
    box-sizing: border-box !important;
  }

  .page-blog__hero-content {
    padding: 0 15px;
  }

  .page-blog__main-title {
    font-size: clamp(1.8rem, 6vw, 2.5rem);
  }

  .page-blog__description {
    font-size: 1rem;
  }

  .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: 1rem;
  }

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

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

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

  .page-blog__section-title {
    font-size: 2rem;
    margin-bottom: 30px;
  }

  .page-blog__sub-title {
    font-size: 1.5rem;
    margin-top: 30px;
  }

  .page-blog__content-area p,
  .page-blog__content-area li {
    font-size: 1rem;
  }

  .page-blog__faq-item summary {
    font-size: 1.1rem;
    padding: 15px 20px;
  }

  .page-blog__faq-answer {
    font-size: 0.95rem;
    padding: 0 20px 15px;
  }

  /* Image responsiveness for mobile */
  .page-blog img {
    max-width: 100% !important;
    width: 100% !important;
    height: auto !important;
    display: block !important;
  }

  /* All containers containing images must be responsive */
  .page-blog__hero-section,
  .page-blog__blog-list,
  .page-blog__featured-guide,
  .page-blog__cta-section,
  .page-blog__card {
    max-width: 100% !important;
    width: 100% !important;
    box-sizing: border-box !important;
  }
}