/* Base Styles & Typography */
.page-tin-tuc {
  font-family: 'Arial', sans-serif;
  line-height: 1.6;
  background-color: var(--deep-navy); /* Body background from shared.css is dark */
  color: var(--text-main); /* Light text for dark body background */
}

.page-tin-tuc__container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 20px 15px;
  box-sizing: border-box;
}

.page-tin-tuc__section-title {
  font-size: clamp(28px, 4vw, 38px);
  font-weight: 700;
  text-align: center;
  margin-bottom: 20px;
  color: var(--text-main); /* Light text for dark sections */
}

.page-tin-tuc__section-description {
  font-size: 18px;
  text-align: center;
  max-width: 800px;
  margin: 0 auto 40px;
  color: var(--text-secondary); /* Lighter text for description */
}

/* Color Classes */
.page-tin-tuc__dark-section {
  background-color: var(--deep-navy);
  color: var(--text-main);
}

.page-tin-tuc__light-bg {
  background-color: #ffffff;
  color: #333333;
}

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

.page-tin-tuc__text-secondary {
  color: var(--text-secondary);
}

/* Buttons */
.page-tin-tuc__btn-primary,
.page-tin-tuc__btn-secondary {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 12px 25px;
  border-radius: 8px;
  font-size: 17px;
  font-weight: 600;
  text-decoration: none;
  transition: all 0.3s ease;
  cursor: pointer;
  box-sizing: border-box;
  white-space: normal;
  word-wrap: break-word;
  max-width: 100%;
}

.page-tin-tuc__btn-primary {
  background: linear-gradient(180deg, #2B73F6 0%, #1144A6 100%);
  color: #F3F8FF;
  border: none;
}

.page-tin-tuc__btn-primary:hover {
  filter: brightness(1.1);
  transform: translateY(-2px);
}

.page-tin-tuc__btn-secondary {
  background: #10233F;
  color: #F3F8FF;
  border: 2px solid var(--border-color);
}

.page-tin-tuc__btn-secondary:hover {
  background: #1B3357;
  transform: translateY(-2px);
}

.page-tin-tuc__cta-buttons {
  display: flex;
  justify-content: center;
  gap: 20px;
  margin-top: 30px;
  width: 100%;
  max-width: 100%;
  overflow: hidden;
  box-sizing: border-box;
}

/* Hero Section */
.page-tin-tuc__hero-section {
  padding-top: 10px; /* Small top padding, body handles header offset */
  position: relative;
  overflow: hidden;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  min-height: 500px;
  text-align: center;
  background-color: var(--deep-navy);
}

.page-tin-tuc__hero-image-wrapper {
  width: 100%;
  height: 100%;
  position: absolute;
  top: 0;
  left: 0;
  z-index: 0;
  overflow: hidden;
}

.page-tin-tuc__hero-image {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
  opacity: 0.3;
}

.page-tin-tuc__hero-content {
  position: relative;
  z-index: 1;
  max-width: 900px;
  padding: 40px 20px;
}

.page-tin-tuc__main-title {
  font-size: clamp(36px, 5vw, 56px);
  font-weight: 800;
  color: var(--gold);
  margin-bottom: 15px;
  line-height: 1.2;
}

.page-tin-tuc__hero-description {
  font-size: 20px;
  color: var(--text-secondary);
  margin-bottom: 30px;
  max-width: 700px;
  margin-left: auto;
  margin-right: auto;
}

/* Latest News Section */
.page-tin-tuc__latest-news-section {
  padding: 80px 0;
  background-color: var(--deep-navy);
}

.page-tin-tuc__news-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 30px;
  margin-top: 40px;
}

.page-tin-tuc__news-card {
  border-radius: 10px;
  overflow: hidden;
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.2);
  transition: transform 0.3s ease, box-shadow 0.3s ease;
  background-color: var(--card-bg);
  color: var(--text-main);
}

.page-tin-tuc__news-card:hover {
  transform: translateY(-8px);
  box-shadow: 0 8px 30px rgba(0, 0, 0, 0.3);
}

.page-tin-tuc__news-image-wrapper {
  width: 100%;
  height: 220px;
  overflow: hidden;
}

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

.page-tin-tuc__news-content {
  padding: 25px;
}

.page-tin-tuc__news-title {
  font-size: 22px;
  font-weight: 700;
  margin-bottom: 10px;
  line-height: 1.4;
}

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

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

.page-tin-tuc__news-meta {
  font-size: 14px;
  color: var(--text-secondary);
  margin-bottom: 15px;
}

.page-tin-tuc__news-excerpt {
  font-size: 16px;
  color: var(--text-secondary);
  margin-bottom: 20px;
}

.page-tin-tuc__read-more-btn {
  display: inline-block;
  color: var(--glow);
  text-decoration: none;
  font-weight: 600;
  font-size: 16px;
  transition: color 0.3s ease;
}

.page-tin-tuc__read-more-btn:hover {
  text-decoration: underline;
  color: #4FA8FF;
}

.page-tin-tuc__view-all-button-container {
  text-align: center;
  margin-top: 50px;
}

/* Categories Section */
.page-tin-tuc__categories-section {
  padding: 80px 0;
  background-color: var(--card-bg);
}

.page-tin-tuc__category-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 25px;
  margin-top: 40px;
}

.page-tin-tuc__category-card {
  background-color: var(--card-bg);
  border: 1px solid var(--border-color);
  border-radius: 10px;
  padding: 30px;
  text-align: center;
  text-decoration: none;
  transition: transform 0.3s ease, background-color 0.3s ease, border-color 0.3s ease;
}

.page-tin-tuc__category-card:hover {
  transform: translateY(-5px);
  background-color: #1B3357;
  border-color: var(--glow);
}

.page-tin-tuc__category-title {
  font-size: 22px;
  font-weight: 700;
  margin-bottom: 10px;
  color: var(--text-main);
}

.page-tin-tuc__category-description {
  font-size: 16px;
  color: var(--text-secondary);
}

/* About News Section */
.page-tin-tuc__about-news-section {
  padding: 80px 0;
  background-color: var(--deep-navy);
}

.page-tin-tuc__article-body {
  max-width: 900px;
  margin: 0 auto;
  font-size: 18px;
  color: var(--text-secondary);
  line-height: 1.8;
}

.page-tin-tuc__article-body p {
  margin-bottom: 20px;
}

.page-tin-tuc__article-body h3 {
  font-size: 24px;
  color: var(--text-main);
  margin-top: 30px;
  margin-bottom: 15px;
}

/* FAQ Section */
.page-tin-tuc__faq-section {
  padding: 80px 0;
  background-color: var(--card-bg);
}

.page-tin-tuc__faq-list {
  max-width: 900px;
  margin: 40px auto 0;
}

details.page-tin-tuc__faq-item {
  margin-bottom: 15px;
  border-radius: 8px;
  border: 1px solid var(--border-color);
  overflow: hidden;
  background: var(--card-bg);
  box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
}

details.page-tin-tuc__faq-item summary.page-tin-tuc__faq-question {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 18px 25px;
  cursor: pointer;
  user-select: none;
  list-style: none;
  transition: background-color 0.3s ease, border-color 0.3s ease;
  background-color: #10233F;
}

details.page-tin-tuc__faq-item summary.page-tin-tuc__faq-question::-webkit-details-marker {
  display: none;
}

details.page-tin-tuc__faq-item summary.page-tin-tuc__faq-question:hover {
  background-color: #1B3357;
}

.page-tin-tuc__faq-qtext {
  flex: 1;
  font-size: 18px;
  font-weight: 600;
  line-height: 1.5;
  text-align: left;
  color: var(--text-main);
}

.page-tin-tuc__faq-toggle {
  font-size: 28px;
  font-weight: bold;
  color: var(--glow);
  flex-shrink: 0;
  margin-left: 15px;
  width: 30px;
  text-align: center;
}

details.page-tin-tuc__faq-item .page-tin-tuc__faq-answer {
  padding: 0 25px 25px;
  background: #08162B;
  border-top: 1px solid var(--divider);
  border-radius: 0 0 8px 8px;
}

details.page-tin-tuc__faq-item .page-tin-tuc__faq-answer p {
  font-size: 16px;
  color: var(--text-secondary);
  margin: 0;
}

/* CTA Section */
.page-tin-tuc__cta-section {
  padding: 80px 0;
  background-color: var(--deep-navy);
  text-align: center;
}

/* General Image Styles (ensure min size and no filters) */
.page-tin-tuc img {
  max-width: 100%;
  height: auto;
  display: block;
  filter: none; /* Ensure no filters are applied */
}

/* Responsive Design */
@media (max-width: 1024px) {
  .page-tin-tuc__hero-content {
    padding: 30px 15px;
  }

  .page-tin-tuc__main-title {
    font-size: clamp(32px, 4.5vw, 48px);
  }

  .page-tin-tuc__hero-description {
    font-size: 18px;
  }

  .page-tin-tuc__news-grid {
    gap: 20px;
  }

  .page-tin-tuc__category-grid {
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: 20px;
  }

  .page-tin-tuc__news-title {
    font-size: 20px;
  }

  .page-tin-tuc__faq-qtext {
    font-size: 17px;
  }
}

@media (max-width: 768px) {
  /* HERO Section - Mobile */
  .page-tin-tuc__hero-section {
    min-height: 400px;
    padding-top: 10px; /* Small top padding for mobile */
  }

  .page-tin-tuc__hero-image {
    object-fit: contain !important; /* Prevent cropping on mobile */
    aspect-ratio: unset !important;
    height: auto !important;
    position: relative;
    opacity: 0.5; /* Slightly more visible on mobile */
  }

  .page-tin-tuc__hero-image-wrapper {
    position: relative;
    height: 200px; /* Adjust height for mobile hero image */
    background-color: var(--deep-navy);
  }

  .page-tin-tuc__hero-content {
    padding: 20px 15px;
    text-align: center;
  }

  .page-tin-tuc__main-title {
    font-size: clamp(28px, 8vw, 42px);
    margin-bottom: 10px;
  }

  .page-tin-tuc__hero-description {
    font-size: 16px;
    margin-bottom: 20px;
  }

  .page-tin-tuc__cta-buttons {
    flex-direction: column; /* Stack buttons vertically on mobile */
    gap: 15px;
    padding: 0 15px;
  }

  .page-tin-tuc__btn-primary,
  .page-tin-tuc__btn-secondary {
    width: 100% !important;
    max-width: 100% !important;
    font-size: 16px;
    padding: 12px 15px;
  }

  /* Latest News Section - Mobile */
  .page-tin-tuc__latest-news-section,
  .page-tin-tuc__categories-section,
  .page-tin-tuc__about-news-section,
  .page-tin-tuc__faq-section,
  .page-tin-tuc__cta-section {
    padding: 50px 0;
  }

  .page-tin-tuc__section-title {
    font-size: clamp(24px, 7vw, 32px);
    margin-bottom: 15px;
  }

  .page-tin-tuc__section-description {
    font-size: 16px;
    margin-bottom: 30px;
    padding: 0 10px;
  }

  .page-tin-tuc__news-grid {
    grid-template-columns: 1fr; /* Single column for news cards on mobile */
    gap: 25px;
    margin-top: 30px;
  }

  .page-tin-tuc__news-card {
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.15);
  }

  .page-tin-tuc__news-image-wrapper {
    height: 180px;
  }

  .page-tin-tuc__news-content {
    padding: 20px;
  }

  .page-tin-tuc__news-title {
    font-size: 18px;
  }

  .page-tin-tuc__news-excerpt {
    font-size: 15px;
  }

  .page-tin-tuc__view-all-button-container {
    margin-top: 40px;
    padding: 0 15px;
  }

  /* Categories Section - Mobile */
  .page-tin-tuc__category-grid {
    grid-template-columns: 1fr; /* Single column for categories on mobile */
    gap: 15px;
    margin-top: 30px;
    padding: 0 15px;
  }

  .page-tin-tuc__category-card {
    padding: 25px;
  }

  .page-tin-tuc__category-title {
    font-size: 20px;
  }

  .page-tin-tuc__category-description {
    font-size: 15px;
  }

  /* About News Section - Mobile */
  .page-tin-tuc__article-body {
    font-size: 16px;
    padding: 0 15px;
  }

  .page-tin-tuc__article-body p {
    margin-bottom: 15px;
  }

  /* FAQ Section - Mobile */
  .page-tin-tuc__faq-list {
    margin-top: 30px;
    padding: 0 15px;
  }

  details.page-tin-tuc__faq-item {
    margin-bottom: 10px;
  }

  details.page-tin-tuc__faq-item summary.page-tin-tuc__faq-question {
    padding: 15px 20px;
  }

  .page-tin-tuc__faq-qtext {
    font-size: 16px;
  }

  .page-tin-tuc__faq-toggle {
    font-size: 24px;
    width: 24px;
  }

  details.page-tin-tuc__faq-item .page-tin-tuc__faq-answer {
    padding: 0 20px 20px;
  }

  .page-tin-tuc__faq-answer p {
    font-size: 15px;
  }

  /* General Mobile Image & Container Rules */
  .page-tin-tuc img {
    max-width: 100% !important;
    width: 100% !important;
    height: auto !important;
  }

  .page-tin-tuc__section,
  .page-tin-tuc__card,
  .page-tin-tuc__container,
  .page-tin-tuc__hero-section,
  .page-tin-tuc__latest-news-section,
  .page-tin-tuc__categories-section,
  .page-tin-tuc__about-news-section,
  .page-tin-tuc__faq-section,
  .page-tin-tuc__cta-section {
    max-width: 100% !important;
    width: 100% !important;
    box-sizing: border-box !important;
  }
}