/* style/index.css */
:root {
  --primary-color: #FFD700; /* Vàng */
  --secondary-color: #0056b3; /* Xanh đậm cho hover */
  --text-color-light: #ffffff;
  --text-color-dark: #333333;
  --background-dark: #121212; /* Từ shared.css */
  --card-bg-dark: rgba(255, 255, 255, 0.1);
  --border-color-dark: rgba(255, 255, 255, 0.2);
}

.page-index {
  color: var(--text-color-light); /* Toàn bộ trang dùng chữ sáng trên nền tối */
  background-color: var(--background-dark);
}

.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; /* Đảm bảo không bị che bởi header cố định */
  background-color: #0d0d0d;
}

.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, 0.2);
}

.page-index__video-wrapper {
  position: relative;
  width: 100%;
  padding-bottom: 56.25%; /* 16:9 aspect ratio */
  height: 0;
  overflow: hidden;
  border-radius: 8px;
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
}

.page-index__video {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  border: none;
  border-radius: 8px;
  object-fit: cover;
  pointer-events: none; /* Ngăn video controls chặn sự kiện click của thẻ <a> */
}

.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, 0.3);
  border-radius: 8px;
  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: 18px;
  font-weight: bold;
  text-shadow: 0 2px 4px rgba(0, 0, 0, 0.5);
  padding: 10px 20px;
  background: rgba(0, 123, 255, 0.8);
  border-radius: 5px;
  white-space: nowrap;
}

.page-index__video-cta {
  width: 100%;
  display: flex;
  justify-content: center;
  align-items: center;
  margin-top: 30px;
}

.page-index__play-now-button {
  display: inline-block;
  padding: 15px 40px;
  background: var(--primary-color);
  color: var(--text-color-dark);
  text-decoration: none;
  border-radius: 8px;
  font-size: 18px;
  font-weight: bold;
  text-align: center;
  transition: all 0.3s ease;
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
  border: none;
  cursor: pointer;
}

.page-index__play-now-button:hover {
  background: #E5C100; /* Slightly darker gold */
  transform: translateY(-2px);
  box-shadow: 0 6px 16px rgba(0, 0, 0, 0.2);
}

.page-index__play-now-button:active {
  transform: translateY(0);
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.15);
}

/* Module 1: H1 Title + CTA Buttons */
.page-index__title-section {
  background-color: #1a1a1a;
  padding: 80px 20px;
  text-align: center;
  color: var(--text-color-light);
  padding-top: 120px; /* Đảm bảo không bị che bởi header cố định */
}

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

.page-index__main-title {
  font-size: 3.2em;
  margin-bottom: 20px;
  color: var(--primary-color);
  line-height: 1.2;
  text-shadow: 0 2px 4px rgba(0, 0, 0, 0.3);
}

.page-index__title-description {
  font-size: 1.3em;
  margin-bottom: 40px;
  line-height: 1.6;
  color: #f0f0f0;
}

.page-index__cta-buttons {
  display: flex;
  justify-content: center;
  gap: 20px;
  flex-wrap: wrap; /* Cho phép các nút xuống dòng trên di động */
}

.page-index__cta-button {
  display: inline-block;
  padding: 15px 35px;
  background: var(--primary-color);
  color: var(--text-color-dark);
  text-decoration: none;
  border-radius: 50px;
  font-size: 1.1em;
  font-weight: bold;
  transition: all 0.3s ease;
  box-shadow: 0 4px 15px rgba(0, 0, 0, 0.2);
  border: none;
  cursor: pointer;
  max-width: 100%;
  box-sizing: border-box;
  white-space: normal;
  word-wrap: break-word;
}

.page-index__cta-button:hover {
  background: #E5C100;
  transform: translateY(-3px);
  box-shadow: 0 6px 20px rgba(0, 0, 0, 0.3);
}

/* Module 2: FAQ Section */
.page-index__faq-section {
  background-color: var(--background-dark);
  padding: 80px 20px;
  color: var(--text-color-light);
}

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

.page-index__faq-title {
  text-align: center;
  font-size: 2.5em;
  margin-bottom: 50px;
  color: var(--primary-color);
}

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

.page-index__faq-item {
  margin-bottom: 10px;
  border-radius: 8px;
  overflow: hidden;
  box-shadow: 0 2px 10px rgba(0, 0, 0, 0.2);
  background-color: var(--card-bg-dark);
  border: 1px solid var(--border-color-dark);
}

.page-index__faq-question {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 18px 25px;
  background: rgba(255, 255, 255, 0.05);
  border-bottom: 1px solid var(--border-color-dark);
  cursor: pointer;
  user-select: none;
  transition: background-color 0.3s ease;
  position: relative;
}

.page-index__faq-question:hover {
  background: rgba(255, 255, 255, 0.1);
}

.page-index__faq-question h3 {
  margin: 0;
  padding: 0;
  flex: 1;
  font-size: 1.15em;
  font-weight: 600;
  line-height: 1.5;
  color: var(--text-color-light);
  pointer-events: none; /* Ngăn h3 chặn sự kiện click */
}

.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: 15px;
  pointer-events: none; /* Ngăn icon chặn sự kiện click */
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 32px;
  height: 32px;
}

.page-index__faq-item.active .page-index__faq-toggle {
  transform: rotate(180deg);
  color: var(--text-color-light);
}

.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 25px;
  opacity: 0;
  color: #cccccc;
}

.page-index__faq-item.active .page-index__faq-answer {
  max-height: 2000px !important; /* Đủ lớn để chứa mọi nội dung */
  padding: 20px 25px !important;
  opacity: 1;
  background: rgba(255, 255, 255, 0.03);
  border-radius: 0 0 8px 8px;
}

/* Module 3: Brand Introduction */
.page-index__brand-section {
  background-color: #0d0d0d;
  padding: 80px 20px;
  color: var(--text-color-light);
}

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

.page-index__brand-title {
  text-align: center;
  font-size: 2.5em;
  margin-bottom: 50px;
  color: var(--primary-color);
}

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

.page-index__brand-item {
  background: var(--card-bg-dark);
  padding: 30px;
  border-radius: 8px;
  box-shadow: 0 4px 15px rgba(0, 0, 0, 0.2);
  text-align: center;
  border: 1px solid var(--border-color-dark);
  transition: transform 0.3s ease;
}

.page-index__brand-item:hover {
  transform: translateY(-5px);
}

.page-index__brand-item img {
  width: 100%;
  max-width: 300px;
  height: auto;
  border-radius: 8px;
  margin-bottom: 25px;
  object-fit: cover;
}

.page-index__brand-item h3 {
  font-size: 1.5em;
  color: var(--primary-color);
  margin-bottom: 15px;
}

.page-index__brand-item p {
  font-size: 1em;
  line-height: 1.7;
  color: #cccccc;
}

/* Module 4: Blog List */
.page-index__blog-section {
  background-color: var(--background-dark);
  padding: 80px 20px;
  color: var(--text-color-light);
}

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

.page-index__blog-title {
  text-align: center;
  font-size: 2.5em;
  margin-bottom: 50px;
  color: var(--primary-color);
}

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

.page-index__blog-item {
  background: var(--card-bg-dark);
  border-radius: 8px;
  overflow: hidden;
  box-shadow: 0 4px 15px rgba(0, 0, 0, 0.2);
  border: 1px solid var(--border-color-dark);
  transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.page-index__blog-item:hover {
  transform: translateY(-5px);
  box-shadow: 0 6px 20px rgba(0, 0, 0, 0.3);
}

.page-index__blog-link {
  display: block;
  text-decoration: none;
  color: inherit;
  padding: 20px;
}

.page-index__blog-image {
  width: 100%;
  height: 200px;
  object-fit: cover;
  border-radius: 4px;
  margin-bottom: 20px;
}

.page-index__blog-item-title {
  font-size: 1.3em;
  color: var(--primary-color);
  margin-bottom: 10px;
  line-height: 1.4;
}

.page-index__blog-item-excerpt {
  font-size: 0.95em;
  color: #cccccc;
  margin-bottom: 15px;
  line-height: 1.6;
}

.page-index__blog-item-date {
  font-size: 0.85em;
  color: #999999;
  display: block;
}

/* Responsive Design */
@media (max-width: 1024px) {
  .page-index__main-title {
    font-size: 2.8em;
  }
  .page-index__title-description {
    font-size: 1.2em;
  }
  .page-index__brand-content, .page-index__blog-list {
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  }
}

@media (max-width: 768px) {
  .page-index__video-section {
    padding-top: 10px !important; /* Mobile fixed header adjustment */
    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: 4px;
    overflow: hidden !important;
  }
  .page-index__video {
    max-width: 100% !important;
    width: 100% !important;
    height: auto !important;
    border-radius: 4px;
    object-fit: contain;
  }
  .page-index__video-cta {
    margin-top: 20px;
    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: 12px 30px !important;
    font-size: 16px !important;
    white-space: normal !important;
    word-wrap: break-word !important;
  }

  .page-index__title-section {
    padding-top: 100px !important; /* Mobile fixed header adjustment */
    padding: 60px 15px;
  }
  .page-index__main-title {
    font-size: 2em;
  }
  .page-index__title-description {
    font-size: 1em;
  }
  .page-index__cta-buttons {
    flex-direction: column;
    gap: 15px;
  }
  .page-index__cta-button {
    padding: 12px 25px;
    font-size: 1em;
    width: 100% !important;
    max-width: 100% !important;
    box-sizing: border-box !important;
  }

  .page-index__faq-section, .page-index__brand-section, .page-index__blog-section {
    padding: 50px 15px;
  }
  .page-index__faq-title, .page-index__brand-title, .page-index__blog-title {
    font-size: 2em;
    margin-bottom: 30px;
  }
  .page-index__faq-question {
    padding: 15px;
    flex-wrap: wrap;
  }
  .page-index__faq-question h3 {
    font-size: 15px;
    margin-bottom: 0;
    width: calc(100% - 40px);
  }
  .page-index__faq-toggle {
    margin-left: 10px;
    width: 24px;
    height: 24px;
    font-size: 20px;
  }
  .page-index__faq-answer {
    padding: 0 15px;
  }
  .page-index__faq-item.active .page-index__faq-answer {
    padding: 15px !important;
  }
  .page-index__brand-item img {
    max-width: 250px;
  }
  .page-index__blog-image {
    height: 180px;
  }
  .page-index__blog-item-title {
    font-size: 1.1em;
  }
  .page-index__blog-item-excerpt {
    font-size: 0.9em;
  }

  /* Global image and container responsive styles */
  .page-index img {
    max-width: 100% !important;
    height: auto !important;
    display: block !important;
  }
  .page-index__section,
  .page-index__card,
  .page-index__container,
  .page-index__brand-item,
  .page-index__blog-item {
    max-width: 100% !important;
    width: 100% !important;
    box-sizing: border-box !important;
    padding-left: 0px;
    padding-right: 0px;
  }
  .page-index__brand-section .page-index__brand-container,
  .page-index__blog-section .page-index__blog-container,
  .page-index__faq-section .page-index__faq-container {
    padding-left: 0;
    padding-right: 0;
  }
  .page-index__brand-item, .page-index__blog-item {
    padding-left: 20px;
    padding-right: 20px;
  }
}

@media (max-width: 480px) {
  .page-index__main-title {
    font-size: 1.8em;
  }
  .page-index__faq-title, .page-index__brand-title, .page-index__blog-title {
    font-size: 1.8em;
  }
  .page-index__play-now-button {
    font-size: 15px !important;
    padding: 10px 25px !important;
  }
  .page-index__video-click-hint {
    font-size: 13px !important;
    padding: 6px 12px !important;
  }
}