/* style/tin-tuc.css */
:root {
  --page-tin-tuc-primary-color: #2F6BFF;
  --page-tin-tuc-secondary-color: #6FA3FF;
  --page-tin-tuc-bg-color: #F4F7FB;
  --page-tin-tuc-card-bg: #FFFFFF;
  --page-tin-tuc-text-main: #1F2D3D;
  --page-tin-tuc-text-dark: #000000;
  --page-tin-tuc-border-color: #D6E2FF;
  --page-tin-tuc-glow-color: #A5C4FF;
  --page-tin-tuc-btn-gradient: linear-gradient(180deg, #4A8BFF 0%, #2F6BFF 100%);
}

.page-tin-tuc {
  font-family: 'Arial', sans-serif;
  color: var(--page-tin-tuc-text-main);
  background-color: var(--page-tin-tuc-bg-color);
}

.page-tin-tuc__container {
  max-width: 1150px;
  margin: 0 auto;
  padding: 0 20px;
}

.page-tin-tuc__hero-section {
  padding-top: 10px;
  padding-bottom: 60px;
  text-align: center;
  background: var(--page-tin-tuc-primary-color);
  color: #ffffff;
  position: relative;
  overflow: hidden;
}

.page-tin-tuc__dark-bg {
  background: var(--page-tin-tuc-primary-color);
  color: #ffffff;
}

.page-tin-tuc__light-bg {
  background: var(--page-tin-tuc-bg-color);
  color: var(--page-tin-tuc-text-main);
}

.page-tin-tuc__main-title {
  font-weight: 700;
  line-height: 1.2;
  letter-spacing: -0.02em;
  margin-bottom: 20px;
  max-width: 900px;
  margin-left: auto;
  margin-right: auto;
  color: #ffffff;
}

.page-tin-tuc__hero-description {
  font-size: 1.15em;
  line-height: 1.6;
  max-width: 800px;
  margin: 0 auto 30px auto;
  color: rgba(255, 255, 255, 0.9);
}

.page-tin-tuc__cta-buttons {
  display: flex;
  gap: 15px;
  justify-content: center;
  flex-wrap: wrap;
}

.page-tin-tuc__btn-primary,
.page-tin-tuc__btn-secondary {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 12px 28px;
  border-radius: 8px;
  font-weight: 600;
  font-size: 1em;
  text-decoration: none;
  transition: all 0.3s ease;
  box-sizing: border-box;
  max-width: 100%;
  white-space: normal;
  word-wrap: break-word;
  text-align: center;
}

.page-tin-tuc__btn-primary {
  background: var(--page-tin-tuc-btn-gradient);
  color: #ffffff;
  border: 2px solid transparent;
}

.page-tin-tuc__btn-primary:hover {
  box-shadow: 0 6px 15px rgba(47, 107, 255, 0.4);
  transform: translateY(-2px);
}

.page-tin-tuc__btn-secondary {
  background: var(--page-tin-tuc-card-bg);
  color: var(--page-tin-tuc-primary-color);
  border: 2px solid var(--page-tin-tuc-primary-color);
}

.page-tin-tuc__btn-secondary:hover {
  background: var(--page-tin-tuc-primary-color);
  color: #ffffff;
  box-shadow: 0 6px 15px rgba(47, 107, 255, 0.2);
  transform: translateY(-2px);
}

.page-tin-tuc__section-title {
  font-size: 2.2em;
  font-weight: 700;
  color: var(--page-tin-tuc-text-dark);
  text-align: center;
  margin-bottom: 40px;
  margin-top: 60px;
  line-height: 1.3;
}

.page-tin-tuc__latest-news-section,
.page-tin-tuc__categories-section,
.page-tin-tuc__articles-list-section,
.page-tin-tuc__why-choose-section {
  padding: 60px 0;
}

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

.page-tin-tuc__card {
  background-color: var(--page-tin-tuc-card-bg);
  border-radius: 12px;
  box-shadow: 0 4px 15px rgba(0, 0, 0, 0.08);
  overflow: hidden;
  transition: transform 0.3s ease, box-shadow 0.3s ease;
  color: var(--page-tin-tuc-text-main);
}

.page-tin-tuc__card:hover {
  transform: translateY(-5px);
  box-shadow: 0 8px 25px rgba(0, 0, 0, 0.15);
}

.page-tin-tuc__article-image,
.page-tin-tuc__article-card-image {
  width: 100%;
  height: 250px;
  object-fit: cover;
  display: block;
}

.page-tin-tuc__article-content,
.page-tin-tuc__article-card-content {
  padding: 25px;
}

.page-tin-tuc__article-title,
.page-tin-tuc__article-card-title {
  font-size: 1.3em;
  font-weight: 600;
  margin-bottom: 10px;
  line-height: 1.4;
}

.page-tin-tuc__article-title a,
.page-tin-tuc__article-card-title a {
  color: var(--page-tin-tuc-text-dark);
  text-decoration: none;
}

.page-tin-tuc__article-title a:hover,
.page-tin-tuc__article-card-title a:hover {
  color: var(--page-tin-tuc-primary-color);
}

.page-tin-tuc__article-meta,
.page-tin-tuc__article-card-meta {
  font-size: 0.9em;
  color: #777;
  margin-bottom: 15px;
}

.page-tin-tuc__article-excerpt,
.page-tin-tuc__article-card-excerpt {
  font-size: 1em;
  line-height: 1.6;
  color: #555;
  margin-bottom: 20px;
}

.page-tin-tuc__read-more-link {
  color: var(--page-tin-tuc-primary-color);
  text-decoration: none;
  font-weight: 600;
  display: inline-block;
}

.page-tin-tuc__read-more-link:hover {
  text-decoration: underline;
}

.page-tin-tuc__categories-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: 20px;
  justify-content: center;
}

.page-tin-tuc__category-card {
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 25px;
  font-size: 1.1em;
  font-weight: 600;
  text-align: center;
  text-decoration: none;
  color: var(--page-tin-tuc-text-dark);
  background-color: var(--page-tin-tuc-card-bg);
  border: 1px solid var(--page-tin-tuc-border-color);
  border-radius: 12px;
  transition: all 0.3s ease;
}

.page-tin-tuc__category-card:hover {
  background-color: var(--page-tin-tuc-primary-color);
  color: #ffffff;
  box-shadow: 0 6px 15px rgba(47, 107, 255, 0.3);
  transform: translateY(-3px);
}

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

.page-tin-tuc__article-card {
  display: flex;
  flex-direction: column;
}

.page-tin-tuc__view-all-button {
  text-align: center;
  margin-top: 30px;
}

.page-tin-tuc__why-choose-section {
  background-color: var(--page-tin-tuc-bg-color);
}

.page-tin-tuc__features-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 30px;
}

.page-tin-tuc__feature-item {
  padding: 30px;
  text-align: center;
  background-color: var(--page-tin-tuc-card-bg);
  border: 1px solid var(--page-tin-tuc-border-color);
  border-radius: 12px;
}

.page-tin-tuc__feature-title {
  font-size: 1.4em;
  font-weight: 600;
  color: var(--page-tin-tuc-primary-color);
  margin-bottom: 15px;
}

.page-tin-tuc__feature-item p {
  font-size: 1em;
  line-height: 1.6;
  color: #555;
}

.page-tin-tuc__cta-buttons--bottom {
  margin-top: 50px;
}

.page-tin-tuc__promo-box {
  background: var(--page-tin-tuc-btn-gradient);
  color: #ffffff;
  padding: 80px 0;
  text-align: center;
}

.page-tin-tuc__promo-content {
  max-width: 900px;
}

.page-tin-tuc__promo-title {
  font-size: 2.5em;
  font-weight: 700;
  margin-bottom: 20px;
  line-height: 1.2;
  color: #ffffff;
}

.page-tin-tuc__promo-text {
  font-size: 1.2em;
  line-height: 1.6;
  margin-bottom: 40px;
  color: rgba(255, 255, 255, 0.9);
}

.page-tin-tuc__btn-primary--promo {
  font-size: 1.1em;
  padding: 15px 35px;
  border-radius: 10px;
  box-shadow: 0 8px 20px rgba(0, 0, 0, 0.2);
}

.page-tin-tuc__btn-primary--promo:hover {
  box-shadow: 0 10px 25px rgba(0, 0, 0, 0.3);
  transform: translateY(-3px);
}

/* General image responsiveness */
.page-tin-tuc img {
  max-width: 100%;
  height: auto;
  display: block;
}

/* Media Queries */
@media (max-width: 1024px) {
  .page-tin-tuc__main-title {
    font-size: 2.8em;
  }
  .page-tin-tuc__hero-description {
    font-size: 1em;
  }
  .page-tin-tuc__section-title {
    font-size: 2em;
  }
  .page-tin-tuc__promo-title {
    font-size: 2em;
  }
  .page-tin-tuc__promo-text {
    font-size: 1.1em;
  }
  .page-tin-tuc__article-image, .page-tin-tuc__article-card-image {
    height: 200px;
  }
}

@media (max-width: 768px) {
  /* 1. Top section title + dual CTA */
  .page-tin-tuc__hero-section {
    padding-top: 10px !important;
    padding-bottom: 40px;
  }
  .page-tin-tuc__main-title {
    font-size: clamp(1.8em, 7vw, 2.5em);
    margin-bottom: 15px;
  }
  .page-tin-tuc__hero-description {
    font-size: 0.95em;
    margin-bottom: 25px;
  }
  .page-tin-tuc__cta-buttons {
    flex-direction: column;
    gap: 10px;
    padding-left: 15px;
    padding-right: 15px;
  }
  .page-tin-tuc__btn-primary, .page-tin-tuc__btn-secondary {
    width: 100% !important;
    max-width: 100% !important;
    box-sizing: border-box !important;
    padding: 12px 20px !important;
    font-size: 1em !important;
    white-space: normal !important;
    word-wrap: break-word !important;
  }

  /* 2. Single column long text container */
  .page-tin-tuc__container {
    padding-left: 15px !important;
    padding-right: 15px !important;
    width: 100% !important;
    max-width: 100% !important;
    box-sizing: border-box !important;
  }
  .page-tin-tuc__latest-news-section,
  .page-tin-tuc__categories-section,
  .page-tin-tuc__articles-list-section,
  .page-tin-tuc__why-choose-section {
    padding: 40px 0;
  }
  .page-tin-tuc__section-title {
    font-size: 1.8em;
    margin-top: 40px;
    margin-bottom: 30px;
  }
  .page-tin-tuc__promo-box {
    padding: 50px 0;
  }
  .page-tin-tuc__promo-title {
    font-size: 1.8em;
    margin-bottom: 15px;
  }
  .page-tin-tuc__promo-text {
    font-size: 1em;
    margin-bottom: 30px;
  }
  .page-tin-tuc__featured-grid,
  .page-tin-tuc__articles-grid,
  .page-tin-tuc__categories-grid,
  .page-tin-tuc__features-grid {
    grid-template-columns: 1fr;
    gap: 20px;
  }

  /* 3. Universal images and figure */
  .page-tin-tuc img {
    max-width: 100% !important;
    width: 100% !important;
    height: auto !important;
  }
  .page-tin-tuc__article-image, .page-tin-tuc__article-card-image {
    height: 180px;
  }

  /* 4. Buttons and button containers (already covered in top section, but re-emphasize general buttons) */
  .page-tin-tuc__cta-buttons--bottom {
    flex-direction: column;
    gap: 10px;
    padding-left: 15px;
    padding-right: 15px;
    margin-top: 30px;
  }
  .page-tin-tuc__view-all-button .page-tin-tuc__btn-primary {
    width: calc(100% - 30px) !important; /* Account for container padding */
    max-width: calc(100% - 30px) !important;
    margin: 0 auto;
  }

  /* 5. Registration tutorial and FAQ blocks (not present on this news page, but if they were, they'd have mobile rules here) */
  .page-tin-tuc__card {
    padding: 0;
  }
  .page-tin-tuc__article-content, .page-tin-tuc__article-card-content {
    padding: 20px;
  }
  .page-tin-tuc__feature-item {
    padding: 25px;
  }
}

/* Color contrast fixes */
.page-tin-tuc__text-contrast-fix {
  color: #333333 !important;
  text-shadow: none !important;
}