/* style/index-about-84vn.css */
/* body đã padding-top: var(--header-offset); trang này KHÔNG được thêm lại padding-top */

:root {
  --84vn-primary-color: #11A84E;
  --84vn-secondary-color: #22C768;
  --84vn-button-gradient: linear-gradient(180deg, #2AD16F 0%, #13994A 100%);
  --84vn-card-bg: #11271B;
  --84vn-background: #08160F;
  --84vn-text-main: #F2FFF6;
  --84vn-text-secondary: #A7D9B8;
  --84vn-border-color: #2E7A4E;
  --84vn-glow-color: #57E38D;
  --84vn-gold-color: #F2C14E;
  --84vn-divider-color: #1E3A2A;
  --84vn-deep-green: #0A4B2C;
}

.page-index-about-84vn {
  font-family: Arial, sans-serif;
  line-height: 1.6;
  color: var(--84vn-text-main); /* Body background is dark, so text is light */
  background-color: var(--84vn-background);
  overflow-x: hidden; /* Prevent horizontal scroll */
}

.page-index-about-84vn__container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 20px;
  box-sizing: border-box;
}

.page-index-about-84vn__section-title {
  font-size: 2.5em;
  color: var(--84vn-text-main);
  text-align: center;
  margin-bottom: 40px;
  font-weight: bold;
  line-height: 1.2;
}

.page-index-about-84vn__text-block {
  font-size: 1.1em;
  color: var(--84vn-text-secondary);
  margin-bottom: 20px;
  text-align: justify;
}

/* Hero Section */
.page-index-about-84vn__hero-section {
  position: relative;
  width: 100%;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  min-height: 600px;
  color: var(--84vn-text-main);
  text-align: center;
  overflow: hidden;
  padding-top: 10px; /* Small top padding, body handles header offset */
}

.page-index-about-84vn__hero-image {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  z-index: 1;
  filter: brightness(0.5); /* Darken image for text readability */
}

.page-index-about-84vn__hero-content {
  position: relative;
  z-index: 2;
  max-width: 900px;
  padding: 40px 20px;
  background: rgba(0, 0, 0, 0.4); /* Ensure text readability */
  border-radius: 10px;
}

.page-index-about-84vn__main-title {
  font-size: clamp(2.5em, 5vw, 3.5em); /* Responsive font size */
  margin-bottom: 20px;
  font-weight: 700;
  line-height: 1.2;
  color: var(--84vn-text-main);
}

.page-index-about-84vn__description {
  font-size: 1.3em;
  margin-bottom: 30px;
  color: var(--84vn-text-secondary);
}

.page-index-about-84vn__cta-buttons {
  display: flex;
  gap: 20px;
  justify-content: center;
  flex-wrap: wrap; /* Allow buttons to wrap on smaller screens */
}

.page-index-about-84vn__btn-primary,
.page-index-about-84vn__btn-secondary {
  display: inline-block;
  padding: 15px 30px;
  border-radius: 8px;
  text-decoration: none;
  font-weight: bold;
  font-size: 1.1em;
  transition: all 0.3s ease;
  box-sizing: border-box;
  max-width: 100%; /* Ensure button adapts to container */
  white-space: normal;
  word-wrap: break-word;
  text-align: center;
}

.page-index-about-84vn__btn-primary {
  background: var(--84vn-button-gradient);
  color: var(--84vn-text-main);
  border: none;
}

.page-index-about-84vn__btn-primary:hover {
  opacity: 0.9;
  transform: translateY(-2px);
}

.page-index-about-84vn__btn-secondary {
  background: transparent;
  color: var(--84vn-primary-color);
  border: 2px solid var(--84vn-primary-color);
}

.page-index-about-84vn__btn-secondary:hover {
  background: var(--84vn-primary-color);
  color: var(--84vn-text-main);
  transform: translateY(-2px);
}

.page-index-about-84vn__btn-text {
  display: inline-block;
  color: var(--84vn-primary-color);
  text-decoration: none;
  font-weight: bold;
  margin-top: 15px;
  transition: color 0.3s ease;
}

.page-index-about-84vn__btn-text:hover {
  color: var(--84vn-gold-color);
}

/* About Section */
.page-index-about-84vn__about-section {
  padding: 80px 0;
  text-align: center;
}

/* Features Section */
.page-index-about-84vn__features-section {
  padding: 80px 0;
  background-color: var(--84vn-deep-green);
}

.page-index-about-84vn__features-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 30px;
  margin-top: 40px;
}

.page-index-about-84vn__feature-card,
.page-index-about-84vn__game-card {
  background-color: var(--84vn-card-bg);
  padding: 30px;
  border-radius: 10px;
  text-align: center;
  box-shadow: 0 5px 15px rgba(0, 0, 0, 0.3);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: space-between;
}

.page-index-about-84vn__feature-image,
.page-index-about-84vn__game-image {
  width: 100%;
  height: 200px;
  object-fit: cover;
  border-radius: 8px;
  margin-bottom: 20px;
  min-width: 200px;
  min-height: 200px;
  display: block;
}

.page-index-about-84vn__feature-title,
.page-index-about-84vn__game-title {
  font-size: 1.5em;
  color: var(--84vn-text-main);
  margin-bottom: 15px;
  font-weight: bold;
}

/* Games Overview Section */
.page-index-about-84vn__games-overview {
  padding: 80px 0;
}

.page-index-about-84vn__game-categories {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 30px;
  margin-top: 40px;
}

/* Security Section */
.page-index-about-84vn__security-section {
  padding: 80px 0;
  background-color: var(--84vn-deep-green);
}

.page-index-about-84vn__security-section .page-index-about-84vn__container {
  display: flex;
  align-items: center;
  gap: 40px;
  flex-wrap: wrap;
}

.page-index-about-84vn__security-content {
  flex: 1;
  min-width: 300px;
}

.page-index-about-84vn__security-image {
  flex: 1;
  min-width: 300px;
  height: auto;
  object-fit: cover;
  border-radius: 10px;
  min-height: 200px;
  display: block;
}

.page-index-about-84vn__security-list {
  list-style: none;
  padding: 0;
  margin-bottom: 30px;
  text-align: left;
}

.page-index-about-84vn__list-item {
  font-size: 1.1em;
  color: var(--84vn-text-secondary);
  margin-bottom: 10px;
  position: relative;
  padding-left: 30px;
}

.page-index-about-84vn__list-item::before {
  content: '✔';
  color: var(--84vn-primary-color);
  position: absolute;
  left: 0;
  font-weight: bold;
}

/* Download App Section */
.page-index-about-84vn__download-app {
  padding: 80px 0;
}

.page-index-about-84vn__download-app .page-index-about-84vn__container {
  display: flex;
  align-items: center;
  gap: 40px;
  flex-wrap: wrap-reverse;
}

.page-index-about-84vn__app-content {
  flex: 1;
  min-width: 300px;
}

.page-index-about-84vn__app-image {
  flex: 1;
  min-width: 300px;
  height: auto;
  object-fit: cover;
  border-radius: 10px;
  min-height: 200px;
  display: block;
}

.page-index-about-84vn__app-buttons {
  display: flex;
  gap: 20px;
  margin-top: 30px;
  flex-wrap: wrap;
}

/* FAQ Section */
.page-index-about-84vn__faq-section {
  padding: 80px 0;
  background-color: var(--84vn-deep-green);
}

.page-index-about-84vn__faq-list {
  max-width: 900px;
  margin: 40px auto 0 auto;
}

.page-index-about-84vn__faq-item {
  background-color: var(--84vn-card-bg);
  margin-bottom: 15px;
  border-radius: 8px;
  overflow: hidden;
  box-shadow: 0 2px 10px rgba(0, 0, 0, 0.2);
}

.page-index-about-84vn__faq-question {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 20px;
  cursor: pointer;
  font-size: 1.2em;
  font-weight: bold;
  color: var(--84vn-text-main);
  background-color: var(--84vn-card-bg);
  border-bottom: 1px solid var(--84vn-divider-color);
  list-style: none; /* For details/summary */
}

.page-index-about-84vn__faq-question::-webkit-details-marker {
  display: none;
}

.page-index-about-84vn__faq-qtext {
  flex-grow: 1;
}

.page-index-about-84vn__faq-toggle {
  font-size: 1.5em;
  line-height: 1;
  margin-left: 15px;
  color: var(--84vn-primary-color);
}

.page-index-about-84vn__faq-answer {
  padding: 0 20px 20px;
  font-size: 1.1em;
  color: var(--84vn-text-secondary);
}

.page-index-about-84vn__faq-item[open] .page-index-about-84vn__faq-question {
  border-bottom: 1px solid var(--84vn-divider-color);
}

/* Final CTA Section */
.page-index-about-84vn__cta-final {
  padding: 80px 0;
  text-align: center;
}

/* Dark background color for specific sections */
.page-index-about-84vn__dark-section {
  background-color: var(--84vn-deep-green);
}

/* Responsive Design */
@media (max-width: 1024px) {
  .page-index-about-84vn__hero-content {
    padding: 30px 15px;
  }

  .page-index-about-84vn__main-title {
    font-size: clamp(2em, 4.5vw, 3em);
  }

  .page-index-about-84vn__description {
    font-size: 1.1em;
  }

  .page-index-about-84vn__section-title {
    font-size: 2em;
  }

  .page-index-about-84vn__about-section,
  .page-index-about-84vn__features-section,
  .page-index-about-84vn__games-overview,
  .page-index-about-84vn__security-section,
  .page-index-about-84vn__download-app,
  .page-index-about-84vn__faq-section,
  .page-index-about-84vn__cta-final {
    padding: 60px 0;
  }

  .page-index-about-84vn__security-section .page-index-about-84vn__container,
  .page-index-about-84vn__download-app .page-index-about-84vn__container {
    flex-direction: column;
    text-align: center;
  }

  .page-index-about-84vn__security-content,
  .page-index-about-84vn__app-content {
    order: 2;
  }

  .page-index-about-84vn__security-image,
  .page-index-about-84vn__app-image {
    order: 1;
    margin-bottom: 30px;
  }

  .page-index-about-84vn__security-list {
    text-align: center;
    padding-left: 0;
  }

  .page-index-about-84vn__list-item {
    padding-left: 0;
  }

  .page-index-about-84vn__list-item::before {
    position: static;
    margin-right: 10px;
  }
}

@media (max-width: 768px) {
  .page-index-about-84vn {
    font-size: 16px;
    line-height: 1.6;
  }

  .page-index-about-84vn__container {
    padding: 0 15px;
  }

  .page-index-about-84vn__hero-section {
    min-height: 500px;
    padding-top: 10px !important;
  }

  .page-index-about-84vn__main-title {
    font-size: clamp(1.8em, 7vw, 2.5em);
    margin-bottom: 15px;
  }

  .page-index-about-84vn__description {
    font-size: 1em;
    margin-bottom: 25px;
  }

  .page-index-about-84vn__cta-buttons {
    flex-direction: column;
    gap: 15px;
  }

  .page-index-about-84vn__btn-primary,
  .page-index-about-84vn__btn-secondary {
    padding: 12px 20px;
    font-size: 1em;
    width: 100% !important; /* Mobile button adaptation */
    max-width: 100% !important;
    box-sizing: border-box !important;
    white-space: normal !important;
    word-wrap: break-word !important;
  }

  .page-index-about-84vn__section-title {
    font-size: 1.8em;
    margin-bottom: 30px;
  }

  .page-index-about-84vn__text-block {
    font-size: 1em;
  }

  /* Mobile Image Adaption */
  .page-index-about-84vn img {
    max-width: 100% !important;
    width: 100% !important;
    height: auto !important;
    display: block !important;
  }

  .page-index-about-84vn__features-grid,
  .page-index-about-84vn__game-categories {
    grid-template-columns: 1fr;
    gap: 20px;
  }

  .page-index-about-84vn__security-image,
  .page-index-about-84vn__app-image {
    width: 100% !important;
    max-width: 100% !important;
    height: auto !important;
  }

  .page-index-about-84vn__faq-question {
    font-size: 1.1em;
    padding: 15px;
  }

  .page-index-about-84vn__faq-answer {
    padding: 0 15px 15px;
  }

  /* Container specific mobile padding */
  .page-index-about-84vn__section,
  .page-index-about-84vn__card,
  .page-index-about-84vn__container {
    max-width: 100% !important;
    width: 100% !important;
    box-sizing: border-box !important;
    padding-left: 15px;
    padding-right: 15px;
  }

  .page-index-about-84vn__video-section {
    padding-top: 10px !important; /* body đã承担 --header-offset，此处禁止 var(--header-offset) */
  }
  
  /* Buttons container for mobile */
  .page-index-about-84vn__cta-buttons,
  .page-index-about-84vn__app-buttons {
    flex-direction: column;
    gap: 10px;
    width: 100% !important;
    max-width: 100% !important;
    box-sizing: border-box !important;
    padding-left: 15px;
    padding-right: 15px;
  }
}

/* Ensure color contrast for dark background */
.page-index-about-84vn__dark-bg {
  color: var(--84vn-text-main); /* Deep green background, light text */
  background-color: var(--84vn-deep-green);
}

.page-index-about-84vn__card {
  background-color: var(--84vn-card-bg);
  color: var(--84vn-text-main);
}

/* Text colors for specific elements */
.page-index-about-84vn h1, .page-index-about-84vn h2, .page-index-about-84vn h3, .page-index-about-84vn h4, .page-index-about-84vn h5, .page-index-about-84vn h6 {
  color: var(--84vn-text-main);
}

.page-index-about-84vn p, .page-index-about-84vn li {
  color: var(--84vn-text-secondary);
}

.page-index-about-84vn a {
  color: var(--84vn-primary-color);
}

.page-index-about-84vn a:hover {
  color: var(--84vn-gold-color);
}

/* Specific dark sections */
.page-index-about-84vn__dark-section {
  background-color: var(--84vn-deep-green);
  color: var(--84vn-text-main);
}

.page-index-about-84vn__dark-section .page-index-about-84vn__text-block {
  color: var(--84vn-text-secondary);
}

.page-index-about-84vn__dark-section .page-index-about-84vn__list-item {
  color: var(--84vn-text-secondary);
}

.page-index-about-84vn__dark-section .page-index-about-84vn__list-item::before {
  color: var(--84vn-primary-color);
}