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

.page-tin-tuc {
  font-family: Arial, sans-serif;
  color: var(--text-main-color); /* #F2FFF6 */
  background-color: var(--background-color-page); /* #08160F */
  line-height: 1.6;
  font-size: 1rem;
}

/* Hero Section */
.page-tin-tuc__hero-section {
  position: relative;
  padding-top: 10px; /* Small top padding, body handles header offset */
  padding-bottom: 40px;
  overflow: hidden;
}

.page-tin-tuc__hero-content-wrapper {
  display: flex;
  flex-direction: column;
  align-items: center;
  max-width: 1200px;
  margin: 0 auto;
  position: relative;
  z-index: 1;
}

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

.page-tin-tuc__hero-text-area {
  text-align: center;
  padding: 0 20px;
  max-width: 800px;
}

.page-tin-tuc__main-title {
  font-size: clamp(2.2rem, 4vw, 3.5rem); /* H1 size constraint */
  color: var(--text-main-color);
  font-weight: 700;
  line-height: 1.2;
  margin-bottom: 20px;
  letter-spacing: -0.02em;
}

.page-tin-tuc__description {
  font-size: 1.1rem;
  color: var(--text-secondary-color);
  margin-bottom: 30px;
}

.page-tin-tuc__cta-buttons {
  display: flex;
  gap: 15px;
  justify-content: center;
  flex-wrap: wrap;
  width: 100%;
}

.page-tin-tuc__btn {
  padding: 14px 28px;
  border-radius: 8px;
  font-size: 1.1rem;
  font-weight: 600;
  text-decoration: none;
  transition: all 0.3s ease;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  max-width: 100%;
  box-sizing: border-box;
  white-space: normal;
  word-wrap: break-word;
}

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

.page-tin-tuc__btn--primary:hover {
  opacity: 0.9;
  transform: translateY(-2px);
  box-shadow: 0 4px 15px rgba(42, 209, 111, 0.4);
}

.page-tin-tuc__btn--secondary {
  background: transparent;
  color: var(--text-main-color);
  border: 2px solid var(--primary-color);
}

.page-tin-tuc__btn--secondary:hover {
  background: rgba(17, 168, 78, 0.1);
  transform: translateY(-2px);
  box-shadow: 0 4px 15px rgba(17, 168, 78, 0.2);
}

/* Latest News Section */
.page-tin-tuc__latest-news-section {
  padding: 60px 0;
  background-color: var(--background-color-page);
}

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

.page-tin-tuc__section-title {
  font-size: 2.5rem;
  color: var(--text-main-color);
  text-align: center;
  margin-bottom: 15px;
  font-weight: 700;
  letter-spacing: -0.02em;
}

.page-tin-tuc__section-description {
  font-size: 1.1rem;
  color: var(--text-secondary-color);
  text-align: center;
  margin-bottom: 40px;
  max-width: 800px;
  margin-left: auto;
  margin-right: auto;
}

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

.page-tin-tuc__news-card {
  background-color: var(--card-bg-color);
  border-radius: 12px;
  overflow: hidden;
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.2);
  transition: transform 0.3s ease, box-shadow 0.3s ease;
  display: flex;
  flex-direction: column;
  height: 100%;
}

.page-tin-tuc__news-card:hover {
  transform: translateY(-5px);
  box-shadow: 0 8px 30px rgba(0, 0, 0, 0.3);
}

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

.page-tin-tuc__news-card-content {
  padding: 25px;
  display: flex;
  flex-direction: column;
  flex-grow: 1;
}

.page-tin-tuc__news-card-title {
  font-size: 1.4rem;
  font-weight: 600;
  margin-bottom: 10px;
  line-height: 1.4;
  flex-grow: 1;
}

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

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

.page-tin-tuc__news-card-meta {
  font-size: 0.9rem;
  color: var(--text-secondary-color);
  margin-bottom: 15px;
}

.page-tin-tuc__news-card-excerpt {
  font-size: 1rem;
  color: var(--text-secondary-color);
  margin-bottom: 20px;
  flex-grow: 1;
}

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

.page-tin-tuc__read-more-btn:hover {
  color: var(--secondary-color);
  transform: translateX(5px);
}

.page-tin-tuc__view-all-news {
  text-align: center;
  margin-top: 20px;
}

/* CTA Section */
.page-tin-tuc__cta-section {
  padding: 80px 0;
  text-align: center;
}

.page-tin-tuc__dark-section {
  background-color: var(--deep-green-color);
  color: #ffffff;
}

.page-tin-tuc__cta-title {
  font-size: 2.5rem;
  color: #ffffff;
  margin-bottom: 20px;
  font-weight: 700;
  letter-spacing: -0.02em;
}

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

/* --- Responsive Styles --- */

/* Tablet (max-width: 1024px) */
@media (max-width: 1024px) {
  .page-tin-tuc__container {
    padding: 0 15px;
  }

  .page-tin-tuc__hero-text-area {
    padding: 0 15px;
  }

  .page-tin-tuc__main-title {
    font-size: clamp(2rem, 5vw, 3rem);
  }

  .page-tin-tuc__section-title,
  .page-tin-tuc__cta-title {
    font-size: 2rem;
  }

  .page-tin-tuc__news-grid {
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 25px;
  }

  .page-tin-tuc__news-card-image {
    height: 200px;
  }
}

/* Mobile (max-width: 768px) - MUST include all required blocks */
@media (max-width: 768px) {
  /* 1. Top section title + Dual CTA */
  .page-tin-tuc__hero-section {
    padding-top: 10px !important;
    padding-bottom: 30px;
  }

  .page-tin-tuc__hero-content-wrapper {
    padding: 0 15px;
  }

  .page-tin-tuc__hero-image {
    margin-bottom: 20px;
  }

  .page-tin-tuc__main-title {
    font-size: clamp(1.8rem, 7vw, 2.5rem);
    margin-bottom: 15px;
  }

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

  .page-tin-tuc__cta-buttons {
    flex-direction: column;
    gap: 10px;
    padding: 0 15px;
  }

  .page-tin-tuc__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;
  }

  /* 2. Single column long text container - General container padding */
  .page-tin-tuc__container {
    max-width: 100% !important;
    width: 100% !important;
    box-sizing: border-box !important;
    padding-left: 15px;
    padding-right: 15px;
  }

  .page-tin-tuc__latest-news-section,
  .page-tin-tuc__cta-section {
    padding: 40px 0;
  }

  /* 3. General images and figure - applies to all images */
  .page-tin-tuc img {
    max-width: 100% !important;
    width: 100% !important;
    height: auto !important;
  }

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

  /* 4. Buttons and button containers - already covered in .page-tin-tuc__cta-buttons and .page-tin-tuc__btn */
  .page-tin-tuc__view-all-news .page-tin-tuc__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;
  }

  /* 5. Registration tutorial and FAQ blocks - General section titles and descriptions */
  .page-tin-tuc__section-title,
  .page-tin-tuc__cta-title {
    font-size: 1.8rem;
    margin-bottom: 10px;
  }

  .page-tin-tuc__section-description,
  .page-tin-tuc__cta-description {
    font-size: 0.95rem;
    margin-bottom: 20px;
  }

  .page-tin-tuc__news-grid {
    grid-template-columns: 1fr;
    gap: 20px;
  }

  .page-tin-tuc__news-card-title {
    font-size: 1.2rem;
  }

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