/* style/tin-tuc.css */

:root {
  --primary-color: #113B7A;
  --secondary-color: #1D5FD1;
  --button-gradient: linear-gradient(180deg, #2B73F6 0%, #1144A6 100%);
  --card-bg: #10233F;
  --text-main: #F3F8FF;
  --text-secondary: #AFC4E8;
  --border-color: #244D84;
  --glow-color: #4FA8FF;
  --gold-color: #F2C14E;
  --divider-color: #1B3357;
  --deep-navy-color: #08162B; /* Assuming this is the body background from shared.css */
}

.page-tin-tuc {
  font-family: 'Arial', sans-serif;
  line-height: 1.6;
  color: var(--text-main); /* Light text for dark body background */
  background-color: var(--deep-navy-color); /* Fallback, but body should be handled by shared */
}

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

.page-tin-tuc__section {
  padding: 60px 0;
  text-align: center;
}

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

.page-tin-tuc__top-section {
  padding-top: 10px; /* Small top padding, body handles --header-offset */
  padding-bottom: 40px;
  background-color: var(--primary-color);
  text-align: center;
  color: var(--text-main);
}

.page-tin-tuc__main-title {
  font-size: clamp(2.5rem, 5vw, 3.5rem);
  font-weight: 700;
  margin-bottom: 15px;
  color: var(--gold-color);
  line-height: 1.2;
}

.page-tin-tuc__description {
  font-size: 1.1rem;
  margin-bottom: 30px;
  color: var(--text-secondary);
  max-width: 800px;
  margin-left: auto;
  margin-right: auto;
}

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

.page-tin-tuc__btn {
  display: inline-block;
  padding: 14px 30px;
  border-radius: 8px;
  text-decoration: none;
  font-weight: 700;
  font-size: 1rem;
  transition: all 0.3s ease;
  box-sizing: border-box;
  max-width: 100%;
  white-space: normal;
  word-wrap: break-word;
}

.page-tin-tuc__btn--primary {
  background: var(--button-gradient);
  color: var(--text-main);
  border: none;
  box-shadow: 0 4px 15px rgba(0, 0, 0, 0.2);
}

.page-tin-tuc__btn--primary:hover {
  opacity: 0.9;
  transform: translateY(-2px);
}

.page-tin-tuc__btn--secondary {
  background-color: transparent;
  color: var(--gold-color);
  border: 2px solid var(--gold-color);
  box-shadow: 0 4px 15px rgba(0, 0, 0, 0.1);
}

.page-tin-tuc__btn--secondary:hover {
  background-color: var(--gold-color);
  color: var(--primary-color);
  transform: translateY(-2px);
}

.page-tin-tuc__section-title {
  font-size: clamp(2rem, 4vw, 2.8rem);
  font-weight: 700;
  margin-bottom: 20px;
  color: var(--gold-color);
}

.page-tin-tuc__section-description {
  font-size: 1.05rem;
  color: var(--text-secondary);
  max-width: 900px;
  margin: 0 auto 40px auto;
}

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

.page-tin-tuc__article-card {
  background-color: var(--card-bg);
  border-radius: 12px;
  overflow: hidden;
  box-shadow: 0 6px 20px rgba(0, 0, 0, 0.2);
  text-align: left;
  display: flex;
  flex-direction: column;
  height: 100%;
}

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

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

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

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

.page-tin-tuc__article-title a:hover {
  color: var(--gold-color);
}

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

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

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

.page-tin-tuc__read-more:hover {
  text-decoration: underline;
  color: var(--glow-color);
}

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

.page-tin-tuc__category-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: 25px;
  margin-top: 40px;
}

.page-tin-tuc__category-card {
  background-color: var(--primary-color);
  border-radius: 10px;
  padding: 25px;
  text-decoration: none;
  color: var(--text-main);
  transition: transform 0.3s ease, box-shadow 0.3s ease;
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  min-height: 150px;
}

.page-tin-tuc__category-card:hover {
  transform: translateY(-5px);
  box-shadow: 0 8px 25px rgba(0, 0, 0, 0.3);
}

.page-tin-tuc__category-title {
  font-size: 1.3rem;
  font-weight: 600;
  margin-bottom: 10px;
  color: var(--gold-color);
}

.page-tin-tuc__category-desc {
  font-size: 0.95rem;
  color: var(--text-secondary);
}

.page-tin-tuc__promo-box {
  background: var(--primary-color);
  border-radius: 15px;
  display: flex;
  align-items: center;
  gap: 40px;
  padding: 40px;
  box-shadow: 0 8px 30px rgba(0, 0, 0, 0.3);
  text-align: left;
}

.page-tin-tuc__promo-content {
  flex: 1;
}

.page-tin-tuc__promo-title {
  font-size: clamp(1.8rem, 3.5vw, 2.5rem);
  font-weight: 700;
  margin-bottom: 15px;
  color: var(--gold-color);
}

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

.page-tin-tuc__promo-image {
  flex-shrink: 0;
  width: 400px;
  height: auto;
  border-radius: 10px;
  object-fit: cover;
}

.page-tin-tuc__about-us .page-tin-tuc__description {
  text-align: center;
  margin-bottom: 25px;
}

.page-tin-tuc__about-us .page-tin-tuc__cta-buttons {
  margin-top: 30px;
}

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

.page-tin-tuc__feature-item {
  background-color: var(--card-bg);
  border-radius: 12px;
  padding: 30px;
  text-align: left;
  box-shadow: 0 4px 15px rgba(0, 0, 0, 0.2);
  color: var(--text-main);
}

.page-tin-tuc__feature-title {
  font-size: 1.5rem;
  font-weight: 600;
  margin-bottom: 15px;
  color: var(--gold-color);
}

.page-tin-tuc__feature-description {
  font-size: 1rem;
  color: var(--text-secondary);
}

.page-tin-tuc__newsletter-form {
  display: flex;
  justify-content: center;
  gap: 15px;
  margin-top: 30px;
  flex-wrap: wrap;
}

.page-tin-tuc__form-input {
  padding: 12px 20px;
  border-radius: 8px;
  border: 1px solid var(--border-color);
  background-color: var(--primary-color);
  color: var(--text-main);
  font-size: 1rem;
  width: 100%;
  max-width: 350px;
  box-sizing: border-box;
}

.page-tin-tuc__form-input::placeholder {
  color: var(--text-secondary);
  opacity: 0.7;
}

.page-tin-tuc__form-input:focus {
  outline: none;
  border-color: var(--glow-color);
  box-shadow: 0 0 0 3px rgba(79, 168, 255, 0.3);
}

.page-tin-tuc__form-note {
  margin-top: 20px;
  font-size: 0.9rem;
  color: var(--text-secondary);
}

.page-tin-tuc__form-note a {
  color: var(--gold-color);
  text-decoration: none;
}

.page-tin-tuc__form-note a:hover {
  text-decoration: underline;
}

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

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

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

  .page-tin-tuc__section {
    padding: 40px 0;
  }

  .page-tin-tuc__main-title {
    font-size: clamp(2rem, 4.5vw, 3rem);
  }

  .page-tin-tuc__section-title {
    font-size: clamp(1.8rem, 3.5vw, 2.5rem);
  }

  .page-tin-tuc__promo-box {
    flex-direction: column;
    text-align: center;
    padding: 30px;
    gap: 25px;
  }

  .page-tin-tuc__promo-image {
    width: 80%;
    max-width: 450px;
  }

  .page-tin-tuc__promo-content .page-tin-tuc__btn {
    margin: 0 auto;
  }

  .page-tin-tuc__news-grid,
  .page-tin-tuc__category-grid,
  .page-tin-tuc__features-grid {
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 20px;
  }

  .page-tin-tuc__newsletter-form {
    flex-direction: column;
    align-items: center;
  }

  .page-tin-tuc__form-input {
    max-width: 400px;
  }
}

/* Mobile styles (max-width: 768px) */
@media (max-width: 768px) {
  /* 1. Top Section Title + CTA */
  .page-tin-tuc__top-section {
    padding-top: 10px !important; /* Small top padding, body handles --header-offset */
    padding-bottom: 30px;
  }

  .page-tin-tuc__main-title {
    font-size: clamp(1.8rem, 8vw, 2.5rem);
  }

  .page-tin-tuc__description {
    font-size: 1rem;
    margin-bottom: 20px;
    padding: 0 10px;
  }

  .page-tin-tuc__cta-buttons {
    flex-direction: column;
    gap: 15px;
    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 Article Container & General Section Padding */
  .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__section {
    padding: 30px 0;
  }

  .page-tin-tuc__section-title {
    font-size: clamp(1.5rem, 7vw, 2rem);
    padding: 0 10px;
  }

  .page-tin-tuc__section-description {
    font-size: 0.95rem;
    margin-bottom: 30px;
    padding: 0 10px;
  }

  /* 3. Generic Images and figure */
  .page-tin-tuc img {
    max-width: 100% !important;
    width: 100% !important;
    height: auto !important;
    box-sizing: border-box !important;
  }

  .page-tin-tuc__article-image {
    height: 200px; /* Adjust height for mobile */
  }

  /* 4. Buttons and Button Containers (already handled in general .page-tin-tuc__btn and .page-tin-tuc__cta-buttons) */
  /* Ensure button containers also have proper padding and max-width */
  .page-tin-tuc__view-all-button-container {
    padding: 0 15px;
    margin-top: 30px;
  }

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

  .page-tin-tuc__form-input {
    width: 100% !important;
    max-width: 100% !important;
  }

  /* 5. Article Cards and Grids */
  .page-tin-tuc__news-grid,
  .page-tin-tuc__category-grid,
  .page-tin-tuc__features-grid {
    grid-template-columns: 1fr;
    gap: 25px;
    padding: 0 15px;
  }

  .page-tin-tuc__article-card {
    padding-bottom: 0; /* Adjust for mobile */
  }

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

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

  .page-tin-tuc__article-summary {
    font-size: 0.95rem;
  }

  .page-tin-tuc__promo-box {
    padding: 20px;
  }

  .page-tin-tuc__promo-title {
    font-size: clamp(1.5rem, 6vw, 2rem);
  }

  .page-tin-tuc__promo-description {
    font-size: 1rem;
  }

  .page-tin-tuc__promo-image {
    width: 100%;
    max-width: 100%;
  }
}