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

.page-nh {
  font-family: 'Arial', sans-serif;
  color: var(--color-text-main); /* Default text color for the page */
  background-color: var(--color-background); /* Default background for the page */
  line-height: 1.6;
}

.page-nh__hero-section {
  position: relative;
  width: 100%;
  display: flex;
  flex-direction: column;
  align-items: center;
  padding-top: 10px; /* Small top padding as body handles header offset */
  padding-bottom: 60px;
  background-color: var(--color-background);
  overflow: hidden;
}

.page-nh__hero-image-wrapper {
  width: 100%;
  max-height: 1080px; /* Limit height to prevent excessive stretching */
  overflow: hidden;
  position: relative;
}

.page-nh__hero-image {
  width: 100%;
  height: auto;
  display: block;
  object-fit: cover;
  filter: brightness(0.7); /* Slightly darken image for text contrast */
}

.page-nh__hero-content {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  text-align: center;
  max-width: 900px;
  z-index: 10;
  padding: 20px;
  background: rgba(0, 0, 0, 0.4); /* Semi-transparent overlay for text readability */
  border-radius: 10px;
}

.page-nh__main-title {
  font-size: clamp(2.5rem, 5vw, 3.5rem);
  color: var(--color-gold);
  margin-bottom: 15px;
  font-weight: bold;
  line-height: 1.2;
  text-shadow: 0 0 10px rgba(0,255,0,0.5);
}

.page-nh__hero-description {
  font-size: clamp(1rem, 2vw, 1.2rem);
  color: var(--color-text-main);
  margin-bottom: 30px;
  max-width: 700px;
  margin-left: auto;
  margin-right: auto;
}

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

.page-nh__btn-primary,
.page-nh__btn-secondary,
.page-nh__btn-small {
  display: inline-block;
  padding: 15px 30px;
  border-radius: 8px;
  text-decoration: none;
  font-weight: bold;
  font-size: 1.1rem;
  transition: all 0.3s ease;
  box-shadow: 0 4px 15px rgba(0, 0, 0, 0.2);
  text-align: center;
  white-space: normal;
  word-wrap: break-word;
  max-width: 100%;
  box-sizing: border-box;
}

.page-nh__btn-primary {
  background: var(--button-gradient);
  color: #ffffff;
  border: none;
}

.page-nh__btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(0, 255, 0, 0.3);
}

.page-nh__btn-secondary {
  background-color: transparent;
  color: var(--color-primary);
  border: 2px solid var(--color-primary);
}

.page-nh__btn-secondary:hover {
  background-color: var(--color-primary);
  color: #ffffff;
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(0, 255, 0, 0.3);
}

.page-nh__btn-small {
  padding: 10px 20px;
  font-size: 0.9rem;
  background: var(--button-gradient);
  color: #ffffff;
  border: none;
}

.page-nh__btn-small:hover {
  transform: translateY(-1px);
  box-shadow: 0 3px 10px rgba(0, 255, 0, 0.2);
}

.page-nh__section {
  padding: 60px 20px;
  max-width: 1200px;
  margin: 0 auto;
  text-align: center;
  box-sizing: border-box;
}

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

.page-nh__section-description {
  font-size: clamp(1rem, 1.5vw, 1.1rem);
  color: var(--color-text-secondary);
  margin-bottom: 40px;
  max-width: 800px;
  margin-left: auto;
  margin-right: auto;
}

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

.page-nh__game-card {
  background-color: var(--color-card-bg);
  border-radius: 10px;
  overflow: hidden;
  box-shadow: 0 5px 20px rgba(0, 0, 0, 0.3);
  text-align: left;
  transition: transform 0.3s ease, box-shadow 0.3s ease;
  border: 1px solid var(--color-border);
}

.page-nh__game-card:hover {
  transform: translateY(-5px);
  box-shadow: 0 8px 25px rgba(0, 255, 0, 0.4);
}

.page-nh__card-image {
  width: 100%;
  height: 200px;
  object-fit: cover;
  display: block;
}

.page-nh__card-title {
  font-size: 1.4rem;
  color: var(--color-gold);
  padding: 15px 20px 5px;
}

.page-nh__card-title a {
  color: var(--color-gold);
  text-decoration: none;
}

.page-nh__card-title a:hover {
  text-decoration: underline;
}

.page-nh__card-text {
  font-size: 0.95rem;
  color: var(--color-text-secondary);
  padding: 0 20px 20px;
}

.page-nh__cta-center {
  margin-top: 50px;
}

.page-nh__benefit-list {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 30px;
  margin-top: 40px;
}

.page-nh__benefit-item {
  background-color: var(--color-card-bg);
  border-radius: 10px;
  padding: 30px 20px;
  box-shadow: 0 5px 20px rgba(0, 0, 0, 0.3);
  transition: transform 0.3s ease, box-shadow 0.3s ease;
  border: 1px solid var(--color-border);
}

.page-nh__benefit-item:hover {
  transform: translateY(-5px);
  box-shadow: 0 8px 25px rgba(0, 255, 0, 0.4);
}

.page-nh__benefit-icon {
  width: 80px;
  height: 80px;
  margin-bottom: 20px;
  object-fit: contain;
}

.page-nh__benefit-heading {
  font-size: 1.3rem;
  color: var(--color-primary);
  margin-bottom: 10px;
}

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

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

.page-nh__step-item {
  background-color: var(--color-card-bg);
  border-radius: 10px;
  padding: 30px;
  box-shadow: 0 5px 20px rgba(0, 0, 0, 0.3);
  text-align: center;
  border: 1px solid var(--color-border);
}

.page-nh__step-heading {
  font-size: 1.5rem;
  color: var(--color-gold);
  margin-bottom: 15px;
}

.page-nh__step-text {
  font-size: 1rem;
  color: var(--color-text-secondary);
  margin-bottom: 25px;
}

.page-nh__strategy-list {
  text-align: left;
  list-style: none;
  padding: 0;
  margin-top: 40px;
}

.page-nh__strategy-list li {
  background-color: var(--color-card-bg);
  border-left: 5px solid var(--color-primary);
  padding: 20px;
  margin-bottom: 20px;
  border-radius: 8px;
  box-shadow: 0 2px 10px rgba(0, 0, 0, 0.2);
}

.page-nh__list-heading {
  color: var(--color-gold);
  font-size: 1.2rem;
  margin-bottom: 10px;
}

.page-nh__strategy-list p {
  color: var(--color-text-secondary);
  font-size: 1rem;
}

.page-nh__faq-list {
  margin-top: 40px;
  text-align: left;
}

.page-nh__faq-item {
  background-color: var(--color-card-bg);
  border: 1px solid var(--color-divider);
  margin-bottom: 15px;
  border-radius: 8px;
  overflow: hidden;
  transition: all 0.3s ease;
}

.page-nh__faq-item[open] {
  border-color: var(--color-primary);
  box-shadow: 0 0 15px rgba(17, 168, 78, 0.3);
}

.page-nh__faq-question {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 20px;
  font-size: 1.15rem;
  font-weight: bold;
  color: var(--color-text-main);
  cursor: pointer;
  background-color: var(--color-card-bg);
  transition: background-color 0.3s ease;
  list-style: none; /* Hide default marker for details summary */
}

.page-nh__faq-question::-webkit-details-marker {
  display: none;
}

.page-nh__faq-question:hover {
  background-color: var(--color-deep-green);
}

.page-nh__faq-toggle {
  font-size: 1.5rem;
  color: var(--color-primary);
  margin-left: 15px;
}

.page-nh__faq-item[open] .page-nh__faq-toggle {
  content: '−';
  color: var(--color-gold);
}

.page-nh__faq-answer {
  padding: 0 20px 20px;
  font-size: 1rem;
  color: var(--color-text-secondary);
  line-height: 1.7;
}

.page-nh__faq-answer p {
  margin-bottom: 0;
}

.page-nh__final-cta {
  padding-top: 80px;
  padding-bottom: 80px;
  background-color: var(--color-deep-green);
  border-top: 5px solid var(--color-primary);
  border-bottom: 5px solid var(--color-primary);
  margin-top: 60px;
}

/* Responsive Styles */
@media (max-width: 1024px) {
  .page-nh__hero-content {
    max-width: 700px;
  }
}

@media (max-width: 768px) {
  .page-nh__hero-content {
    position: static;
    transform: none;
    padding: 30px 15px;
    background: var(--color-background);
    border-radius: 0;
    margin-top: -10px; /* Pull up to cover image bottom edge */
  }

  .page-nh__hero-image-wrapper {
    height: 300px; /* Fixed height for mobile hero image */
  }

  .page-nh__main-title {
    font-size: 2.2rem;
  }

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

  .page-nh__cta-buttons {
    flex-direction: column;
    gap: 15px;
  }

  .page-nh__btn-primary,
  .page-nh__btn-secondary,
  .page-nh__btn-small {
    max-width: 100% !important;
    width: 100% !important;
    box-sizing: border-box !important;
    padding: 12px 20px;
    font-size: 1rem;
  }

  .page-nh__section {
    padding: 40px 15px;
  }

  .page-nh__section-title {
    font-size: 2rem;
  }

  .page-nh__section-description {
    font-size: 0.95rem;
  }

  .page-nh__game-grid,
  .page-nh__benefit-list,
  .page-nh__guide-steps {
    grid-template-columns: 1fr;
    gap: 20px;
  }

  .page-nh__card-image {
    height: 180px;
  }

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

  .page-nh__benefit-icon {
    width: 60px;
    height: 60px;
  }

  .page-nh__benefit-heading {
    font-size: 1.1rem;
  }

  .page-nh__step-heading {
    font-size: 1.3rem;
  }

  .page-nh__strategy-list li {
    padding: 15px;
  }

  .page-nh__list-heading {
    font-size: 1.1rem;
  }

  .page-nh__faq-question {
    font-size: 1rem;
    padding: 15px;
  }

  .page-nh__faq-answer {
    padding: 0 15px 15px;
    font-size: 0.95rem;
  }

  /* Force responsive for all images */
  .page-nh img {
    max-width: 100% !important;
    height: auto !important;
    display: block !important;
  }
  
  .page-nh__section,
  .page-nh__card,
  .page-nh__container {
    max-width: 100% !important;
    width: 100% !important;
    box-sizing: border-box !important;
    padding-left: 15px;
    padding-right: 15px;
  }
  
  .page-nh__video-section {
    padding-top: 10px !important; /* body đã có --header-offset, đây chỉ là padding nhỏ */
  }

  /* Video responsive */
  .page-nh video,
  .page-nh__video {
    max-width: 100% !important;
    width: 100% !important;
    height: auto !important;
    display: block !important;
  }
  
  .page-nh__video-section,
  .page-nh__video-container,
  .page-nh__video-wrapper {
    max-width: 100% !important;
    width: 100% !important;
    box-sizing: border-box !important;
    padding-left: 15px;
    padding-right: 15px;
    overflow: hidden !important;
  }
  
  .page-nh__video-wrapper {
    max-width: 100% !important;
    width: 100% !important;
    box-sizing: border-box !important;
  }
}