.page-game-bai-tien-len-mien-nam {
  font-family: Arial, sans-serif;
  line-height: 1.6;
  color: var(--text-main, #F3F8FF); /* Default to light text on assumed dark body bg */
  background-color: var(--card-bg, #10233F); /* Inherit from shared, or use custom dark blue */
}

.page-game-bai-tien-len-mien-nam__dark-bg {
  background-color: var(--deep-navy, #08162B);
  color: var(--text-main, #F3F8FF);
}

.page-game-bai-tien-len-mien-nam__container {
  max-width: 1170px;
  margin: 0 auto;
  padding: 40px 16px;
  box-sizing: border-box;
}

.page-game-bai-tien-len-mien-nam__section-title {
  font-size: 2.5em;
  font-weight: bold;
  color: var(--gold, #F2C14E);
  text-align: center;
  margin-bottom: 20px;
  line-height: 1.2;
}

.page-game-bai-tien-len-mien-nam__section-description {
  font-size: 1.1em;
  color: var(--text-secondary, #AFC4E8);
  text-align: center;
  max-width: 800px;
  margin: 0 auto 40px;
}

/* HERO Section */
.page-game-bai-tien-len-mien-nam__hero-section {
  padding-top: 10px; /* Small top padding, body handles --header-offset */
  padding-bottom: 40px;
  background: linear-gradient(180deg, var(--deep-navy, #08162B) 0%, var(--main-color, #113B7A) 100%);
}

.page-game-bai-tien-len-mien-nam__hero-container {
  max-width: 1170px;
  margin: 0 auto;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  padding: 40px 16px;
  gap: 40px;
}

.page-game-bai-tien-len-mien-nam__hero-image {
  flex: 1 1 45%;
  text-align: center;
  min-width: 300px;
}

.page-game-bai-tien-len-mien-nam__hero-main-img {
  max-width: 100%;
  height: auto;
  border-radius: 8px;
  box-shadow: 0 8px 20px rgba(0, 0, 0, 0.3);
  display: block;
}

.page-game-bai-tien-len-mien-nam__hero-content {
  flex: 1 1 50%;
  min-width: 300px;
  color: var(--text-main, #F3F8FF);
}

.page-game-bai-tien-len-mien-nam__hero-title {
  font-size: clamp(2.5rem, 4vw, 3.5rem);
  font-weight: bold;
  color: var(--gold, #F2C14E);
  margin-bottom: 20px;
  line-height: 1.2;
}

.page-game-bai-tien-len-mien-nam__hero-description {
  font-size: 1.2em;
  color: var(--text-secondary, #AFC4E8);
  margin-bottom: 30px;
}

.page-game-bai-tien-len-mien-nam__cta-buttons {
  display: flex;
  gap: 20px;
  flex-wrap: wrap;
}

.page-game-bai-tien-len-mien-nam__btn-primary,
.page-game-bai-tien-len-mien-nam__btn-secondary {
  display: inline-block;
  padding: 15px 30px;
  border-radius: 8px;
  font-weight: bold;
  text-decoration: none;
  transition: all 0.3s ease;
  text-align: center;
  box-sizing: border-box;
  white-space: normal;
  word-wrap: break-word;
}

.page-game-bai-tien-len-mien-nam__btn-primary {
  background: linear-gradient(180deg, #2B73F6 0%, #1144A6 100%);
  color: #ffffff;
  border: 2px solid transparent;
  box-shadow: 0 4px 15px rgba(0, 0, 0, 0.2);
}

.page-game-bai-tien-len-mien-nam__btn-primary:hover {
  background: linear-gradient(180deg, #1144A6 0%, #2B73F6 100%);
  transform: translateY(-2px);
}

.page-game-bai-tien-len-mien-nam__btn-secondary {
  background-color: transparent;
  color: var(--gold, #F2C14E);
  border: 2px solid var(--gold, #F2C14E);
}

.page-game-bai-tien-len-mien-nam__btn-secondary:hover {
  background-color: var(--gold, #F2C14E);
  color: var(--deep-navy, #08162B);
  transform: translateY(-2px);
}

.page-game-bai-tien-len-mien-nam__cta-center {
  text-align: center;
  margin-top: 40px;
}

/* Intro Section */
.page-game-bai-tien-len-mien-nam__intro-section {
  padding: 60px 0;
  background-color: var(--card-bg, #10233F);
  color: var(--text-main, #F3F8FF);
}

.page-game-bai-tien-len-mien-nam__features-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 30px;
  margin-top: 40px;
}

.page-game-bai-tien-len-mien-nam__feature-item {
  text-align: center;
  background-color: var(--deep-navy, #08162B);
  padding: 30px;
  border-radius: 12px;
  box-shadow: 0 4px 10px rgba(0, 0, 0, 0.2);
  border: 1px solid var(--divider, #1B3357);
}

.page-game-bai-tien-len-mien-nam__icon-box-media {
  width: 240px;
  height: 240px;
  margin: 0 auto 20px;
  border-radius: 50%;
  overflow: hidden;
  border: 4px solid var(--gold, #F2C14E);
  box-shadow: 0 0 0 8px rgba(242, 193, 78, 0.2);
}

.page-game-bai-tien-len-mien-nam__icon-box-media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}

.page-game-bai-tien-len-mien-nam__feature-title {
  font-size: 1.5em;
  font-weight: bold;
  color: var(--gold, #F2C14E);
  margin-bottom: 15px;
}

.page-game-bai-tien-len-mien-nam__feature-text {
  color: var(--text-secondary, #AFC4E8);
  font-size: 1em;
}

/* Gameplay Section */
.page-game-bai-tien-len-mien-nam__gameplay-section {
  padding: 60px 0;
  background-color: var(--deep-navy, #08162B);
  color: var(--text-main, #F3F8FF);
}

.page-game-bai-tien-len-mien-nam__gameplay-content {
  display: flex;
  flex-wrap: wrap;
  gap: 40px;
  align-items: flex-start;
  margin-top: 40px;
}

.page-game-bai-tien-len-mien-nam__gameplay-text {
  flex: 1 1 55%;
  min-width: 300px;
}

.page-game-bai-tien-len-mien-nam__gameplay-subtitle {
  font-size: 1.8em;
  color: var(--gold, #F2C14E);
  margin-top: 30px;
  margin-bottom: 15px;
}

.page-game-bai-tien-len-mien-nam__list {
  list-style-type: disc;
  margin-left: 20px;
  color: var(--text-secondary, #AFC4E8);
  font-size: 1em;
}

.page-game-bai-tien-len-mien-nam__list li {
  margin-bottom: 10px;
}

.page-game-bai-tien-len-mien-nam__gameplay-image {
  flex: 1 1 35%;
  text-align: center;
  min-width: 300px;
}

.page-game-bai-tien-len-mien-nam__game-rules-img {
  max-width: 100%;
  height: auto;
  border-radius: 8px;
  box-shadow: 0 4px 15px rgba(0, 0, 0, 0.2);
  display: block;
}

/* Why Choose Section */
.page-game-bai-tien-len-mien-nam__why-choose-section {
  padding: 60px 0;
  background-color: var(--card-bg, #10233F);
  color: var(--text-main, #F3F8FF);
}

.page-game-bai-tien-len-mien-nam__benefits-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 30px;
  margin-top: 40px;
}

.page-game-bai-tien-len-mien-nam__benefit-card {
  background-color: var(--deep-navy, #08162B);
  padding: 30px;
  border-radius: 12px;
  box-shadow: 0 4px 10px rgba(0, 0, 0, 0.2);
  border: 1px solid var(--divider, #1B3357);
}

.page-game-bai-tien-len-mien-nam__benefit-title {
  font-size: 1.5em;
  font-weight: bold;
  color: var(--gold, #F2C14E);
  margin-bottom: 15px;
}

.page-game-bai-tien-len-mien-nam__benefit-text {
  color: var(--text-secondary, #AFC4E8);
  font-size: 1em;
}

.page-game-bai-tien-len-mien-nam__image-center {
  text-align: center;
  margin-top: 60px;
}

.page-game-bai-tien-len-mien-nam__benefits-img {
  max-width: 100%;
  height: auto;
  border-radius: 8px;
  box-shadow: 0 4px 15px rgba(0, 0, 0, 0.2);
  display: block;
  margin: 0 auto;
}

/* Promo Section */
.page-game-bai-tien-len-mien-nam__promo-section {
  padding: 60px 0;
  background-color: var(--deep-navy, #08162B);
  color: var(--text-main, #F3F8FF);
}

.page-game-bai-tien-len-mien-nam__promo-cards {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 30px;
  margin-top: 40px;
}

.page-game-bai-tien-len-mien-nam__promo-card {
  background-color: var(--card-bg, #10233F);
  padding: 20px;
  border-radius: 12px;
  box-shadow: 0 4px 10px rgba(0, 0, 0, 0.2);
  text-align: center;
  border: 1px solid var(--divider, #1B3357);
}

.page-game-bai-tien-len-mien-nam__promo-img {
  max-width: 100%;
  height: auto;
  border-radius: 8px;
  margin-bottom: 20px;
  display: block;
}

.page-game-bai-tien-len-mien-nam__promo-title {
  font-size: 1.6em;
  font-weight: bold;
  color: var(--gold, #F2C14E);
  margin-bottom: 10px;
}

.page-game-bai-tien-len-mien-nam__promo-text {
  color: var(--text-secondary, #AFC4E8);
  font-size: 1em;
  margin-bottom: 20px;
}

/* FAQ Section */
.page-game-bai-tien-len-mien-nam__faq-section {
  padding: 60px 0;
  background-color: var(--card-bg, #10233F);
  color: var(--text-main, #F3F8FF);
}

.page-game-bai-tien-len-mien-nam__faq-list {
  max-width: 900px;
  margin: 40px auto 0;
}

.page-game-bai-tien-len-mien-nam__faq-item {
  background-color: var(--deep-navy, #08162B);
  border: 1px solid var(--divider, #1B3357);
  border-radius: 8px;
  margin-bottom: 15px;
  overflow: hidden;
}

.page-game-bai-tien-len-mien-nam__faq-item summary {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 20px;
  cursor: pointer;
  list-style: none;
  color: var(--gold, #F2C14E);
  font-size: 1.2em;
  font-weight: bold;
}

.page-game-bai-tien-len-mien-nam__faq-item summary::-webkit-details-marker {
  display: none;
}

.page-game-bai-tien-len-mien-nam__faq-toggle {
  font-size: 1.5em;
  line-height: 1;
  transition: transform 0.3s ease;
}

.page-game-bai-tien-len-mien-nam__faq-item[open] .page-game-bai-tien-len-mien-nam__faq-toggle {
  transform: rotate(45deg);
}

.page-game-bai-tien-len-mien-nam__faq-answer {
  padding: 0 20px 20px;
  color: var(--text-secondary, #AFC4E8);
  font-size: 1em;
}

.page-game-bai-tien-len-mien-nam__faq-answer p {
  margin: 0;
}

/* Final CTA Section */
.page-game-bai-tien-len-mien-nam__cta-final-section {
  padding: 60px 0;
  text-align: center;
  background: linear-gradient(180deg, var(--main-color, #113B7A) 0%, var(--deep-navy, #08162B) 100%);
  color: var(--text-main, #F3F8FF);
}

/* General image styling for content areas */
.page-game-bai-tien-len-mien-nam img {
  max-width: 100%;
  height: auto;
  display: block;
}

/* Responsive Styles */
@media (max-width: 1024px) {
  .page-game-bai-tien-len-mien-nam__hero-container {
    flex-direction: column-reverse;
    text-align: center;
  }

  .page-game-bai-tien-len-mien-nam__hero-content {
    text-align: center;
  }

  .page-game-bai-tien-len-mien-nam__cta-buttons {
    justify-content: center;
  }

  .page-game-bai-tien-len-mien-nam__gameplay-content {
    flex-direction: column;
  }

  .page-game-bai-tien-len-mien-nam__gameplay-text,
  .page-game-bai-tien-len-mien-nam__gameplay-image {
    flex: 1 1 100%;
  }
}

@media (max-width: 768px) {
  .page-game-bai-tien-len-mien-nam {
    font-size: 16px;
    line-height: 1.6;
  }

  .page-game-bai-tien-len-mien-nam__hero-section {
    padding-top: 10px !important;
    padding-bottom: 30px;
  }

  .page-game-bai-tien-len-mien-nam__hero-container,
  .page-game-bai-tien-len-mien-nam__container {
    padding-left: 15px !important;
    padding-right: 15px !important;
    width: 100% !important;
    max-width: 100% !important;
    box-sizing: border-box !important;
  }

  .page-game-bai-tien-len-mien-nam__section-title {
    font-size: 2em;
    margin-bottom: 15px;
  }

  .page-game-bai-tien-len-mien-nam__section-description {
    font-size: 1em;
    margin-bottom: 30px;
  }

  .page-game-bai-tien-len-mien-nam__hero-title {
    font-size: clamp(2rem, 6vw, 2.5rem);
  }

  .page-game-bai-tien-len-mien-nam__hero-description {
    font-size: 1em;
  }

  .page-game-bai-tien-len-mien-nam__cta-buttons {
    flex-direction: column;
    gap: 15px;
    width: 100%;
    max-width: 100%;
    box-sizing: border-box;
    overflow: hidden;
  }

  .page-game-bai-tien-len-mien-nam__btn-primary,
  .page-game-bai-tien-len-mien-nam__btn-secondary {
    max-width: 100% !important;
    width: 100% !important;
    padding: 12px 20px;
    font-size: 0.95em;
    box-sizing: border-box !important;
    white-space: normal !important;
    word-wrap: break-word !important;
  }

  .page-game-bai-tien-len-mien-nam__features-grid,
  .page-game-bai-tien-len-mien-nam__benefits-grid,
  .page-game-bai-tien-len-mien-nam__promo-cards {
    grid-template-columns: 1fr;
    gap: 20px;
  }

  .page-game-bai-tien-len-mien-nam__icon-box-media {
    width: 200px;
    height: 200px;
    border-width: 3px;
    box-shadow: 0 0 0 6px rgba(242, 193, 78, 0.2);
  }

  .page-game-bai-tien-len-mien-nam__feature-title,
  .page-game-bai-tien-len-mien-nam__benefit-title,
  .page-game-bai-tien-len-mien-nam__promo-title {
    font-size: 1.3em;
  }

  .page-game-bai-tien-len-mien-nam__gameplay-subtitle {
    font-size: 1.5em;
  }

  .page-game-bai-tien-len-mien-nam__list {
    margin-left: 15px;
  }

  .page-game-bai-tien-len-mien-nam__faq-item summary {
    font-size: 1em;
    padding: 15px;
  }

  .page-game-bai-tien-len-mien-nam__faq-answer {
    padding: 0 15px 15px;
  }

  /* Universal image responsive styles for content area */
  .page-game-bai-tien-len-mien-nam img {
    max-width: 100% !important;
    width: 100% !important;
    height: auto !important;
  }

  .page-game-bai-tien-len-mien-nam__hero-image,
  .page-game-bai-tien-len-mien-nam__gameplay-image,
  .page-game-bai-tien-len-mien-nam__image-center {
    max-width: 100% !important;
    width: 100% !important;
    box-sizing: border-box !important;
    overflow: hidden !important;
  }
}