/* style/index.css */
:root {
  --primary-color: #FFD700; /* Gold */
  --secondary-color: #8B0000; /* Deep Red */
  --text-light: #ffffff;
  --text-dark: #333333;
  --background-dark: #000;
  --background-light: #f5f5f5;
  --card-background: rgba(255, 255, 255, 0.1);
  --border-color: rgba(255, 255, 255, 0.2);
}

.page-index {
  font-family: 'Arial', sans-serif;
  color: var(--text-light); /* Default text color for dark body background */
  background-color: var(--background-dark); /* Inherited from shared.css body */
  line-height: 1.6;
}

.page-index__video-section {
  position: relative;
  width: 100%;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 60px 20px;
  padding-top: 10px; /* Adjusted for fixed header */
  background-color: #0d0d0d; /* Slightly different dark background */
}

.page-index__video-container {
  position: relative;
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
}

.page-index__video-link {
  display: block;
  text-decoration: none;
  position: relative;
  width: 100%;
  cursor: pointer;
  transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.page-index__video-link:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(0, 0, 0, 0.4);
}

.page-index__video-wrapper {
  position: relative;
  width: 100%;
  padding-bottom: 56.25%; /* 16:9 Aspect Ratio */
  height: 0;
  overflow: hidden;
  border-radius: 12px;
  box-shadow: 0 8px 25px rgba(0, 0, 0, 0.3);
}

.page-index__video {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  border: none;
  border-radius: 12px;
  object-fit: cover;
  pointer-events: none;
}

.page-index__video-overlay {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(0, 0, 0, 0.4);
  border-radius: 12px;
  opacity: 0;
  transition: opacity 0.3s ease;
  pointer-events: none;
  z-index: 1;
}

.page-index__video-link:hover .page-index__video-overlay {
  opacity: 1;
}

.page-index__video-click-hint {
  color: #ffffff;
  font-size: 20px;
  font-weight: bold;
  text-shadow: 0 2px 6px rgba(0, 0, 0, 0.7);
  padding: 12px 25px;
  background: rgba(255, 215, 0, 0.85); /* Gold with opacity */
  border-radius: 8px;
  white-space: nowrap;
  letter-spacing: 1px;
}

.page-index__video-cta {
  width: 100%;
  display: flex;
  justify-content: center;
  align-items: center;
  margin-top: 40px;
}

.page-index__play-now-button {
  display: inline-block;
  padding: 18px 50px;
  background: var(--primary-color); /* Gold */
  color: var(--text-dark); /* Dark text on gold for contrast */
  text-decoration: none;
  border-radius: 10px;
  font-size: 20px;
  font-weight: bold;
  text-align: center;
  transition: all 0.3s ease;
  box-shadow: 0 6px 20px rgba(255, 215, 0, 0.4);
  border: none;
  cursor: pointer;
  letter-spacing: 1.5px;
  text-transform: uppercase;
}

.page-index__play-now-button:hover {
  background: #e6c200; /* Slightly darker gold */
  transform: translateY(-3px);
  box-shadow: 0 8px 25px rgba(255, 215, 0, 0.6);
}

.page-index__play-now-button:active {
  transform: translateY(0);
  box-shadow: 0 4px 15px rgba(255, 215, 0, 0.3);
}

.page-index__title-section {
  padding: 80px 20px;
  text-align: center;
  background-color: var(--background-dark);
  color: var(--text-light);
}

.page-index__title-container {
  max-width: 1000px;
  margin: 0 auto;
}

.page-index__main-title {
  font-size: 48px;
  font-weight: 800;
  margin-bottom: 25px;
  line-height: 1.2;
  color: var(--primary-color); /* Gold title */
  text-shadow: 0 0 15px rgba(255, 215, 0, 0.5);
}

.page-index__title-description {
  font-size: 18px;
  margin-bottom: 40px;
  color: #e0e0e0;
  max-width: 800px;
  margin-left: auto;
  margin-right: auto;
}

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

.page-index__cta-button {
  display: inline-block;
  padding: 16px 35px;
  text-decoration: none;
  border-radius: 8px;
  font-size: 17px;
  font-weight: bold;
  text-align: center;
  transition: all 0.3s ease;
  box-shadow: 0 4px 15px rgba(0, 0, 0, 0.2);
  border: none;
  cursor: pointer;
  letter-spacing: 0.8px;
}

.page-index__cta-button--primary {
  background: var(--primary-color);
  color: var(--text-dark);
}

.page-index__cta-button--primary:hover {
  background: #e6c200;
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(255, 215, 0, 0.4);
}

.page-index__cta-button--secondary {
  background: var(--secondary-color);
  color: var(--text-light);
}

.page-index__cta-button--secondary:hover {
  background: #6a0000;
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(139, 0, 0, 0.4);
}

.page-index__features-section {
  padding: 80px 20px;
  background-color: #1a1a1a;
  color: var(--text-light);
  text-align: center;
}

.page-index__features-container {
  max-width: 1200px;
  margin: 0 auto;
}

.page-index__features-title {
  font-size: 38px;
  font-weight: 700;
  margin-bottom: 20px;
  color: var(--primary-color);
}

.page-index__features-description {
  font-size: 17px;
  margin-bottom: 50px;
  color: #cccccc;
  max-width: 900px;
  margin-left: auto;
  margin-right: auto;
}

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

.page-index__feature-item {
  background: var(--card-background);
  padding: 30px;
  border-radius: 10px;
  box-shadow: 0 4px 15px rgba(0, 0, 0, 0.3);
  transition: transform 0.3s ease, background-color 0.3s ease;
  border: 1px solid var(--border-color);
  height: 100%;
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
}

.page-index__feature-item:hover {
  transform: translateY(-5px);
  background-color: rgba(255, 255, 255, 0.15);
}

.page-index__feature-icon {
  width: 120px;
  height: 120px;
  margin-bottom: 20px;
  object-fit: contain;
  border-radius: 50%;
  border: 3px solid var(--primary-color);
  padding: 10px;
  background-color: rgba(255, 215, 0, 0.1);
}

.page-index__feature-item-title {
  font-size: 24px;
  font-weight: 600;
  margin-bottom: 15px;
  color: var(--primary-color);
}

.page-index__feature-item-text {
  font-size: 16px;
  color: #c0c0c0;
  flex-grow: 1;
}

.page-index__faq-section {
  padding: 80px 20px;
  background-color: var(--background-dark);
  color: var(--text-light);
}

.page-index__faq-container {
  max-width: 900px;
  margin: 0 auto;
}

.page-index__faq-main-title {
  font-size: 38px;
  font-weight: 700;
  margin-bottom: 20px;
  text-align: center;
  color: var(--primary-color);
}

.page-index__faq-description {
  font-size: 17px;
  margin-bottom: 40px;
  text-align: center;
  color: #cccccc;
}

.page-index__faq-list {
  display: flex;
  flex-direction: column;
  gap: 15px;
}

/* FAQ容器样式 */
.page-index__faq-item {
  border-radius: 10px;
  overflow: hidden;
  box-shadow: 0 4px 15px rgba(0, 0, 0, 0.2);
  border: 1px solid var(--border-color);
}

/* FAQ默认状态 - 答案隐藏 */
.page-index__faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.4s cubic-bezier(0.4, 0, 0.2, 1), padding 0.4s ease, opacity 0.4s ease;
  padding: 0 20px;
  opacity: 0;
  background: var(--card-background);
  color: #e0e0e0;
}

/* FAQ展开状态 - 🚨 使用!important và đủ lớn max-height để đảm bảo có thể mở rộng */
.page-index__faq-item.active .page-index__faq-answer {
  max-height: 2000px !important; /* 🚨 Sử dụng!important để đảm bảo ưu tiên, giá trị đủ lớn để chứa mọi nội dung */
  padding: 25px 20px !important;
  opacity: 1;
  background: rgba(255, 255, 255, 0.15);
  border-radius: 0 0 10px 10px;
}

/* Vấn đề FAQ */
.page-index__faq-question {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 20px 25px;
  background: rgba(255, 255, 255, 0.08);
  border-radius: 10px;
  cursor: pointer;
  user-select: none;
  transition: background-color 0.3s ease, border-color 0.3s ease;
  position: relative;
  border-bottom: 1px solid transparent; /* No bottom border initially */
}

.page-index__faq-item.active .page-index__faq-question {
  border-bottom: 1px solid var(--border-color); /* Add border when active */
  border-radius: 10px 10px 0 0;
}

.page-index__faq-question:hover {
  background: rgba(255, 255, 255, 0.12);
}

.page-index__faq-question:active {
  background: rgba(255, 255, 255, 0.18);
}

/* Tiêu đề câu hỏi */
.page-index__faq-question h3 {
  margin: 0;
  padding: 0;
  flex: 1;
  font-size: 18px;
  font-weight: 600;
  line-height: 1.5;
  pointer-events: none;
  color: var(--primary-color);
}

/* Biểu tượng chuyển đổi */
.page-index__faq-toggle {
  font-size: 28px;
  font-weight: bold;
  line-height: 1;
  color: var(--primary-color);
  transition: transform 0.3s ease, color 0.3s ease;
  flex-shrink: 0;
  margin-left: 20px;
  pointer-events: none;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 32px;
  height: 32px;
  transform: rotate(0deg);
}

.page-index__faq-item.active .page-index__faq-toggle {
  color: var(--text-light);
  transform: rotate(45deg);
}

.page-index__brand-section {
  padding: 80px 20px;
  background-color: #1a1a1a;
  color: var(--text-light);
  text-align: center;
}

.page-index__brand-container {
  max-width: 1200px;
  margin: 0 auto;
}

.page-index__brand-title {
  font-size: 38px;
  font-weight: 700;
  margin-bottom: 50px;
  color: var(--primary-color);
}

.page-index__brand-content {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 30px;
}

.page-index__brand-item {
  background: var(--card-background);
  padding: 30px;
  border-radius: 10px;
  box-shadow: 0 4px 15px rgba(0, 0, 0, 0.3);
  border: 1px solid var(--border-color);
  height: 100%;
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
}

.page-index__brand-image {
  width: 250px; /* Larger image for brand intro */
  height: 150px;
  object-fit: contain;
  margin-bottom: 20px;
  border-radius: 8px;
  border: 2px solid var(--secondary-color);
  padding: 10px;
  background-color: rgba(139, 0, 0, 0.1);
}

.page-index__brand-item-title {
  font-size: 24px;
  font-weight: 600;
  margin-bottom: 15px;
  color: var(--primary-color);
}

.page-index__brand-item-text {
  font-size: 16px;
  color: #c0c0c0;
  flex-grow: 1;
}

.page-index__blog-section {
  padding: 80px 20px;
  background-color: var(--background-dark);
  color: var(--text-light);
  text-align: center;
}

.page-index__blog-container {
  max-width: 1200px;
  margin: 0 auto;
}

.page-index__blog-title {
  font-size: 38px;
  font-weight: 700;
  margin-bottom: 20px;
  color: var(--primary-color);
}

.page-index__blog-description {
  font-size: 17px;
  margin-bottom: 50px;
  color: #cccccc;
  max-width: 900px;
  margin-left: auto;
  margin-right: auto;
}

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

.page-index__blog-item {
  background: var(--card-background);
  border-radius: 10px;
  overflow: hidden;
  box-shadow: 0 4px 15px rgba(0, 0, 0, 0.3);
  transition: transform 0.3s ease, box-shadow 0.3s ease;
  border: 1px solid var(--border-color);
  display: flex;
  flex-direction: column;
}

.page-index__blog-item:hover {
  transform: translateY(-5px);
  box-shadow: 0 8px 20px rgba(0, 0, 0, 0.4);
}

.page-index__blog-link {
  text-decoration: none;
  color: inherit;
  display: flex;
  flex-direction: column;
  height: 100%;
}

.page-index__blog-item-image {
  width: 100%;
  height: 200px;
  object-fit: cover;
  border-bottom: 1px solid var(--border-color);
}

.page-index__blog-item-title {
  font-size: 20px;
  font-weight: 600;
  margin: 20px 20px 10px;
  color: var(--primary-color);
  text-align: left;
}

.page-index__blog-item-excerpt {
  font-size: 15px;
  color: #c0c0c0;
  margin: 0 20px 15px;
  text-align: left;
  flex-grow: 1;
}

.page-index__blog-item-date {
  font-size: 14px;
  color: #888888;
  margin: 0 20px 20px;
  text-align: left;
  display: block;
}

.page-index__blog-cta {
  margin-top: 50px;
}

/* Responsive styles */
@media (max-width: 1024px) {
  .page-index__main-title {
    font-size: 42px;
  }
  .page-index__features-title,
  .page-index__faq-main-title,
  .page-index__brand-title,
  .page-index__blog-title {
    font-size: 34px;
  }
  .page-index__play-now-button {
    font-size: 18px;
    padding: 16px 40px;
  }
  .page-index__cta-button {
    font-size: 16px;
    padding: 14px 30px;
  }
}

@media (max-width: 768px) {
  .page-index__video-section {
    padding-top: 10px !important; /* Mobile: Adjusted for fixed header */
    padding-bottom: 40px;
    padding-left: 15px;
    padding-right: 15px;
    max-width: 100% !important;
    width: 100% !important;
    box-sizing: border-box !important;
    overflow: hidden !important;
  }
  
  .page-index__video-container {
    max-width: 100% !important;
    width: 100% !important;
    box-sizing: border-box !important;
    padding-left: 0;
    padding-right: 0;
    overflow: hidden !important;
  }
  
  .page-index__video-link {
    max-width: 100% !important;
    width: 100% !important;
    box-sizing: border-box !important;
  }
  
  .page-index__video-wrapper {
    max-width: 100% !important;
    width: 100% !important;
    box-sizing: border-box !important;
    border-radius: 8px;
    overflow: hidden !important;
  }
  
  .page-index__video {
    max-width: 100% !important;
    width: 100% !important;
    height: auto !important;
    border-radius: 8px;
    object-fit: contain;
  }
  
  .page-index__video-cta {
    margin-top: 30px;
    padding-left: 15px;
    padding-right: 15px;
    width: 100%;
    max-width: 100%;
    box-sizing: border-box;
  }
  
  .page-index__play-now-button {
    max-width: 100% !important;
    width: 100% !important;
    box-sizing: border-box !important;
    padding: 15px 30px !important;
    font-size: 17px !important;
    white-space: normal !important;
    word-wrap: break-word !important;
  }

  .page-index__video-click-hint {
    font-size: 16px !important;
    padding: 10px 20px !important;
  }

  .page-index__title-section,
  .page-index__features-section,
  .page-index__faq-section,
  .page-index__brand-section,
  .page-index__blog-section {
    padding: 50px 15px;
  }

  .page-index__main-title {
    font-size: 32px;
    margin-bottom: 15px;
  }
  .page-index__title-description {
    font-size: 16px;
    margin-bottom: 30px;
  }
  .page-index__cta-buttons {
    flex-direction: column;
    gap: 15px;
  }
  .page-index__cta-button {
    max-width: 100% !important;
    width: 100% !important;
    box-sizing: border-box !important;
    padding: 14px 25px !important;
    font-size: 16px !important;
    white-space: normal !important;
    word-wrap: break-word !important;
  }

  .page-index__features-title,
  .page-index__faq-main-title,
  .page-index__brand-title,
  .page-index__blog-title {
    font-size: 28px;
    margin-bottom: 15px;
  }
  .page-index__features-description,
  .page-index__faq-description,
  .page-index__blog-description {
    font-size: 15px;
    margin-bottom: 30px;
  }

  .page-index__feature-item-title,
  .page-index__brand-item-title {
    font-size: 20px;
  }
  .page-index__feature-item-text,
  .page-index__brand-item-text {
    font-size: 15px;
  }

  .page-index__feature-icon {
    width: 100px;
    height: 100px;
  }
  .page-index__brand-image {
    width: 200px;
    height: 120px;
  }
  
  .page-index__faq-question {
    padding: 18px 20px;
  }
  .page-index__faq-question h3 {
    font-size: 16px;
  }
  .page-index__faq-toggle {
    font-size: 24px;
    width: 28px;
    height: 28px;
  }
  .page-index__faq-item.active .page-index__faq-answer {
    padding: 20px !important;
  }

  .page-index__blog-item-image {
    height: 180px;
  }
  .page-index__blog-item-title {
    font-size: 18px;
    margin: 15px;
  }
  .page-index__blog-item-excerpt,
  .page-index__blog-item-date {
    font-size: 14px;
    margin: 0 15px 15px;
  }
  .page-index__blog-item {
    max-width: 100% !important;
    width: 100% !important;
    box-sizing: border-box !important;
  }
  .page-index img {
    max-width: 100% !important;
    width: 100% !important;
    height: auto !important;
  }
  .page-index__section, .page-index__card, .page-index__container {
    max-width: 100% !important;
    width: 100% !important;
    box-sizing: border-box !important;
    padding-left: 15px;
    padding-right: 15px;
  }
}

@media (max-width: 480px) {
  .page-index__main-title {
    font-size: 28px;
  }
  .page-index__features-title,
  .page-index__faq-main-title,
  .page-index__brand-title,
  .page-index__blog-title {
    font-size: 24px;
  }
  .page-index__play-now-button {
    font-size: 16px;
    padding: 12px 25px;
  }
  .page-index__video-click-hint {
    font-size: 14px !important;
    padding: 8px 16px !important;
  }
  .page-index__feature-icon {
    width: 80px;
    height: 80px;
  }
  .page-index__brand-image {
    width: 180px;
    height: 100px;
  }
}