/* style/index.css */

/* Biến CSS chung cho màu sắc */
:root {
  --primary-color: #CC0000; /* Đỏ sẫm */
  --secondary-color: #FFD700; /* Vàng sáng */
  --text-light: #ffffff;
  --text-dark: #333333;
  --background-dark: #000000;
  --background-light: #f9f9f9;
  --border-color: #e0e0e0;
}

/* Reset cơ bản và font (chỉ áp dụng cho .page-index để tránh xung đột) */
.page-index {
  font-family: 'Arial', sans-serif;
  line-height: 1.6;
  color: var(--text-light); /* Màu chữ mặc định cho nền tối */
  background-color: var(--background-dark); /* Nền tối */
  padding-top: 10px; /* Đảm bảo nội dung không bị che bởi nav cố định */
}

.page-index * {
  box-sizing: border-box;
}

/* Tiêu đề chung */
.page-index h1, .page-index h2, .page-index h3, .page-index h4, .page-index h5, .page-index h6 {
  color: var(--text-light);
  margin-top: 0;
  margin-bottom: 15px;
  line-height: 1.2;
}

.page-index h1 {
  font-size: 3em;
  font-weight: bold;
  text-align: center;
}

.page-index h2 {
  font-size: 2.5em;
  font-weight: bold;
  text-align: center;
  margin-bottom: 40px;
  color: var(--secondary-color);
}

.page-index h3 {
  font-size: 1.8em;
  font-weight: 600;
}

.page-index p {
  margin-bottom: 1em;
  font-size: 1.1em;
}

.page-index a {
  color: var(--secondary-color);
  text-decoration: none;
  transition: color 0.3s ease;
}

.page-index a:hover {
  color: var(--primary-color);
}

/* Nút CTA chung */
.page-index__cta-button {
  display: inline-block;
  padding: 15px 40px;
  background: var(--primary-color);
  color: var(--text-light);
  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, 0.2);
  border: none;
  cursor: pointer;
  margin: 10px;
}

.page-index__cta-button:hover {
  background: #a30000;
  transform: translateY(-2px);
  box-shadow: 0 6px 16px rgba(0, 0, 0, 0.3);
}

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

.page-index__cta-button--secondary:hover {
  background: #e6c200;
  color: var(--text-dark);
}

/* Phần video */
.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; /* Desktop: Đảm bảo nội dung không bị che bởi nav cố định */
  background-color: var(--background-dark);
}

.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-wrapper {
  position: relative;
  width: 100%;
  padding-bottom: 56.25%; /* 16:9 Aspect Ratio */
  height: 0;
  overflow: hidden;
  border-radius: 8px;
  box-shadow: 0 8px 20px rgba(0, 0, 0, 0.4);
}

.page-index__video {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  border: none;
  border-radius: 8px;
  object-fit: cover;
}

.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: 18px 50px;
  background: linear-gradient(45deg, var(--primary-color), #FF0000);
  color: #ffffff;
  text-decoration: none;
  border-radius: 10px;
  font-size: 20px;
  font-weight: bold;
  text-align: center;
  transition: all 0.3s ease;
  box-shadow: 0 6px 15px rgba(0, 0, 0, 0.3);
  border: none;
  cursor: pointer;
  text-transform: uppercase;
  letter-spacing: 1px;
}

.page-index__play-now-button:hover {
  background: linear-gradient(45deg, #FF0000, var(--primary-color));
  transform: translateY(-3px) scale(1.02);
  box-shadow: 0 8px 20px rgba(0, 0, 0, 0.4);
}

/* Phần tiêu đề chính */
.page-index__title-section {
  padding: 80px 20px;
  background-color: var(--background-dark);
  text-align: center;
}

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

.page-index__main-title {
  font-size: 3.5em;
  color: var(--secondary-color);
  margin-bottom: 20px;
  text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.5);
}

.page-index__title-description {
  font-size: 1.3em;
  color: var(--text-light);
  margin-bottom: 40px;
  max-width: 800px;
  margin-left: auto;
  margin-right: auto;
}

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

/* Phần tính năng */
.page-index__features-section {
  padding: 80px 20px;
  background-color: #1a1a1a;
  text-align: center;
}

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

.page-index__features-title {
  color: var(--secondary-color);
  margin-bottom: 20px;
}

.page-index__features-description {
  font-size: 1.2em;
  color: var(--text-light);
  margin-bottom: 60px;
  max-width: 900px;
  margin-left: auto;
  margin-right: auto;
}

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

.page-index__feature-card {
  background: rgba(255, 255, 255, 0.08); /* Nền tối với độ trong suốt nhẹ */
  border-radius: 10px;
  padding: 30px;
  text-align: center;
  box-shadow: 0 4px 15px rgba(0, 0, 0, 0.3);
  transition: transform 0.3s ease, box-shadow 0.3s ease;
  color: var(--text-light); /* Đảm bảo chữ sáng trên nền tối */
  display: flex;
  flex-direction: column;
  align-items: center;
}

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

.page-index__feature-icon {
  width: 100px;
  height: 100px;
  margin-bottom: 20px;
  object-fit: contain;
}

.page-index__feature-card-title {
  color: var(--secondary-color);
  font-size: 1.5em;
  margin-bottom: 15px;
}

.page-index__feature-card p {
  font-size: 1em;
  color: rgba(255, 255, 255, 0.8);
}

/* Phần FAQ */
.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-title {
  color: var(--secondary-color);
  margin-bottom: 40px;
}

.page-index__faq-list {
  margin-top: 30px;
}

.page-index__faq-item {
  margin-bottom: 15px;
  border-radius: 8px;
  overflow: hidden;
  box-shadow: 0 2px 10px rgba(0, 0, 0, 0.2);
}

.page-index__faq-question {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 18px 25px;
  background: #2a2a2a;
  border: 1px solid #3a3a3a;
  border-radius: 8px;
  cursor: pointer;
  user-select: none;
  transition: background-color 0.3s ease, border-color 0.3s ease;
  position: relative;
}

.page-index__faq-question:hover {
  background: #3a3a3a;
  border-color: var(--primary-color);
}

.page-index__faq-question h3 {
  margin: 0;
  padding: 0;
  flex: 1;
  font-size: 1.2em;
  font-weight: 600;
  line-height: 1.5;
  color: var(--text-light);
  pointer-events: none;
}

.page-index__faq-toggle {
  font-size: 28px;
  font-weight: bold;
  line-height: 1;
  color: var(--secondary-color);
  transition: transform 0.3s ease, color 0.3s ease;
  flex-shrink: 0;
  margin-left: 15px;
  pointer-events: none;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 32px;
  height: 32px;
}

.page-index__faq-item.active .page-index__faq-toggle {
  color: var(--primary-color);
  transform: rotate(45deg); /* Thêm hiệu ứng xoay cho dấu trừ */
}

.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;
  background: #1f1f1f;
  color: rgba(255, 255, 255, 0.8);
  font-size: 1em;
  line-height: 1.8;
}

.page-index__faq-item.active .page-index__faq-answer {
  max-height: 2000px !important; /* Đảm bảo đủ lớn để chứa nội dung */
  padding: 20px 25px !important;
  opacity: 1;
  border-radius: 0 0 8px 8px;
}

/* Phần giới thiệu thương hiệu */
.page-index__brand-section {
  padding: 80px 20px;
  background-color: #1a1a1a;
  color: var(--text-light);
}

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

.page-index__brand-title {
  color: var(--secondary-color);
  margin-bottom: 40px;
}

.page-index__brand-content p {
  font-size: 1.1em;
  margin-bottom: 25px;
  color: rgba(255, 255, 255, 0.8);
}

.page-index__brand-item {
  margin-bottom: 50px;
  padding: 25px;
  background: rgba(255, 255, 255, 0.05);
  border-left: 5px solid var(--primary-color);
  border-radius: 8px;
  box-shadow: 0 2px 10px rgba(0, 0, 0, 0.2);
}

.page-index__brand-item-title {
  color: var(--secondary-color);
  font-size: 1.6em;
  margin-bottom: 15px;
}

.page-index__brand-item p {
  font-size: 1em;
  color: rgba(255, 255, 255, 0.7);
}

.page-index__brand-item ul {
  list-style: none;
  padding-left: 0;
  margin-top: 15px;
}

.page-index__brand-item li {
  margin-bottom: 10px;
  padding-left: 25px;
  position: relative;
  color: rgba(255, 255, 255, 0.8);
  font-size: 1em;
}

.page-index__brand-item li::before {
  content: '◆';
  color: var(--secondary-color);
  position: absolute;
  left: 0;
  font-size: 0.8em;
  top: 0;
}

/* Phần blog */
.page-index__blog-section {
  padding: 80px 20px;
  background-color: var(--background-dark);
  color: var(--text-light);
}

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

.page-index__blog-title {
  color: var(--secondary-color);
  margin-bottom: 20px;
}

.page-index__blog-description {
  font-size: 1.2em;
  color: var(--text-light);
  margin-bottom: 60px;
  max-width: 900px;
  margin-left: auto;
  margin-right: auto;
}

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

.page-index__blog-item {
  background: rgba(255, 255, 255, 0.08);
  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;
  display: flex;
  flex-direction: column;
}

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

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

.page-index__blog-item-content {
  padding: 20px;
  flex-grow: 1;
  display: flex;
  flex-direction: column;
}

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

.page-index__blog-item-excerpt {
  font-size: 0.95em;
  color: rgba(255, 255, 255, 0.7);
  margin-bottom: 15px;
  flex-grow: 1;
}

.page-index__blog-item-date {
  font-size: 0.85em;
  color: rgba(255, 255, 255, 0.5);
  text-align: right;
  display: block;
}

.page-index__blog-link {
  color: var(--secondary-color);
}

.page-index__blog-link:hover .page-index__blog-item-title {
  color: var(--primary-color);
}

.page-index__view-all-button-wrapper {
  text-align: center;
  margin-top: 50px;
}

/* Responsive Design */
@media (max-width: 1024px) {
  .page-index h1 {
    font-size: 2.8em;
  }

  .page-index h2 {
    font-size: 2em;
  }

  .page-index__main-title {
    font-size: 3em;
  }

  .page-index__title-description {
    font-size: 1.1em;
  }

  .page-index__play-now-button {
    padding: 15px 40px;
    font-size: 18px;
  }

  .page-index__cta-button {
    padding: 12px 30px;
    font-size: 16px;
  }

  .page-index__features-grid,
  .page-index__blog-list {
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  }

  .page-index__feature-icon {
    width: 80px;
    height: 80px;
  }

  .page-index__faq-question h3 {
    font-size: 1.1em;
  }

  .page-index__faq-toggle {
    font-size: 24px;
    width: 28px;
    height: 28px;
  }
}

@media (max-width: 768px) {
  .page-index {
    padding-top: 10px !important; /* Mobile: Đảm bảo nội dung không bị che bởi nav cố định */
    font-size: 16px;
    line-height: 1.6;
  }

  .page-index h1 {
    font-size: 2.2em;
  }

  .page-index h2 {
    font-size: 1.8em;
    margin-bottom: 30px;
  }

  .page-index h3 {
    font-size: 1.4em;
  }

  .page-index__video-section,
  .page-index__title-section,
  .page-index__features-section,
  .page-index__faq-section,
  .page-index__brand-section,
  .page-index__blog-section {
    padding: 40px 15px; /* Giảm padding ngang cho mobile */
  }

  .page-index__video-container,
  .page-index__title-container,
  .page-index__features-container,
  .page-index__faq-container,
  .page-index__brand-container,
  .page-index__blog-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-wrapper {
    border-radius: 4px;
    max-width: 100% !important;
    width: 100% !important;
    box-sizing: border-box !important;
    overflow: hidden !important;
  }

  .page-index__video {
    border-radius: 4px;
    max-width: 100% !important;
    width: 100% !important;
    height: auto !important;
    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__main-title {
    font-size: 2.5em;
  }

  .page-index__cta-buttons {
    flex-direction: column;
    gap: 15px;
    padding-left: 15px;
    padding-right: 15px;
    width: 100%;
    max-width: 100%;
    box-sizing: border-box;
  }

  .page-index__cta-button {
    max-width: 100% !important;
    width: 100% !important;
    box-sizing: border-box !important;
    padding: 12px 20px !important;
    font-size: 16px !important;
    white-space: normal !important;
    word-wrap: break-word !important;
    margin: 0 !important;
  }

  .page-index__features-grid,
  .page-index__blog-list {
    grid-template-columns: 1fr;
  }

  .page-index__feature-icon {
    width: 70px;
    height: 70px;
  }

  .page-index__feature-card,
  .page-index__blog-item {
    padding: 20px;
  }

  .page-index__faq-question {
    padding: 15px 20px;
  }

  .page-index__faq-question h3 {
    font-size: 1em;
  }

  .page-index__faq-toggle {
    font-size: 20px;
    width: 24px;
    height: 24px;
  }

  .page-index__faq-answer {
    padding: 15px 20px !important;
  }

  .page-index__blog-item-image {
    height: 180px;
  }

  .page-index__blog-item-title {
    font-size: 1.2em;
  }

  /* Tất cả hình ảnh trong .page-index phải responsive */
  .page-index img {
    max-width: 100% !important;
    height: auto !important;
    display: block !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 h1 {
    font-size: 2em;
  }

  .page-index h2 {
    font-size: 1.6em;
  }

  .page-index__main-title {
    font-size: 2em;
  }

  .page-index__title-description {
    font-size: 1em;
  }

  .page-index__play-now-button {
    font-size: 14px !important;
    padding: 10px 25px !important;
  }

  .page-index__cta-button {
    font-size: 14px !important;
    padding: 10px 20px !important;
  }

  .page-index__feature-card-title {
    font-size: 1.2em;
  }

  .page-index__blog-item-title {
    font-size: 1.1em;
  }
}