/* style/index.css */

/* Biến CSS */
:root {
  --page-index-primary-color: #003366;
  --page-index-secondary-color: #FFCC00;
  --page-index-text-light: #f8f8f8;
  --page-index-text-dark: #333;
  --page-index-bg-light: #ffffff;
  --page-index-bg-dark: #002244;
  --page-index-accent-light: #ffeb99;
  --page-index-accent-dark: #b38f00;
}

/* Cấu trúc chung của trang chủ */
.page-index {
  font-family: 'Arial', sans-serif;
  color: var(--page-index-text-dark);
  line-height: 1.6;
  background-color: var(--page-index-bg-light);
}

.page-index-container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 20px;
}

.page-index-section-title {
  font-size: 2.5em;
  color: var(--page-index-primary-color);
  text-align: center;
  margin-bottom: 20px;
  position: relative;
  padding-bottom: 10px;
}

.page-index-section-title::after {
  content: '';
  position: absolute;
  left: 50%;
  bottom: 0;
  transform: translateX(-50%);
  width: 80px;
  height: 4px;
  background-color: var(--page-index-secondary-color);
  border-radius: 2px;
}

.page-index-section-description {
  font-size: 1.1em;
  text-align: center;
  margin-bottom: 40px;
  color: #555;
}

/* Nút chung */
.page-index-btn {
  display: inline-block;
  padding: 12px 25px;
  border-radius: 5px;
  text-decoration: none;
  font-weight: bold;
  transition: all 0.3s ease;
  text-align: center;
  cursor: pointer;
}

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

.page-index-btn-primary:hover {
  background-color: var(--page-index-accent-dark);
  color: var(--page-index-text-light);
  border-color: var(--page-index-accent-dark);
}

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

.page-index-btn-secondary:hover {
  background-color: var(--page-index-secondary-color);
  color: var(--page-index-primary-color);
}

.page-index-btn-outline {
  background-color: transparent;
  color: var(--page-index-primary-color);
  border: 2px solid var(--page-index-primary-color);
}

.page-index-btn-outline:hover {
  background-color: var(--page-index-primary-color);
  color: var(--page-index-text-light);
}

.page-index-btn-small {
  padding: 8px 15px;
  font-size: 0.9em;
  border: 1px solid var(--page-index-primary-color);
  color: var(--page-index-primary-color);
  background-color: transparent;
}

.page-index-btn-small:hover {
  background-color: var(--page-index-primary-color);
  color: var(--page-index-text-light);
}

/* Lưới 2 cột */
.page-index-grid-2-col {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 40px;
  align-items: center;
}

/* Hero Section */
.page-index-hero {
  background: var(--page-index-bg-dark);
  color: var(--page-index-text-light);
  padding: 80px 0;
  text-align: center;
  position: relative;
  overflow: hidden;
}

.page-index-hero-image {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: 0.3;
  z-index: 0;
}

.page-index-hero .page-index-container {
  position: relative;
  z-index: 1;
}

.page-index-hero-title {
  font-size: 3.5em;
  margin-bottom: 20px;
  color: var(--page-index-secondary-color);
  line-height: 1.2;
}

.page-index-hero-description {
  font-size: 1.2em;
  max-width: 800px;
  margin: 0 auto 40px;
  color: var(--page-index-text-light);
}

.page-index-hero-actions .page-index-btn {
  margin: 0 10px;
}

/* About Section */
.page-index-about {
  padding: 80px 0;
  background-color: var(--page-index-bg-light);
}

.page-index-about-content p {
  margin-bottom: 15px;
  font-size: 1.05em;
}

.page-index-about-image-wrapper {
  text-align: center;
}

.page-index-about-image {
  max-width: 100%;
  height: auto;
  border-radius: 10px;
  box-shadow: 0 8px 20px rgba(0, 0, 0, 0.1);
}

/* Games Section */
.page-index-games {
  padding: 80px 0;
  background-color: #f0f4f8;
}

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

.page-index-game-card {
  background-color: var(--page-index-bg-light);
  border-radius: 10px;
  box-shadow: 0 5px 15px rgba(0, 0, 0, 0.05);
  padding: 30px;
  text-align: center;
  transition: transform 0.3s ease;
}

.page-index-game-card:hover {
  transform: translateY(-5px);
}

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

.page-index-game-title {
  font-size: 1.5em;
  color: var(--page-index-primary-color);
  margin-bottom: 15px;
}

.page-index-game-text {
  font-size: 0.95em;
  color: #666;
  margin-bottom: 20px;
}

/* Promotions Section */
.page-index-promotions {
  padding: 80px 0;
  background-color: var(--page-index-bg-light);
}

.page-index-promo-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 30px;
  margin-bottom: 40px;
}

.page-index-promo-card {
  background-color: #f9f9f9;
  border-radius: 10px;
  box-shadow: 0 5px 15px rgba(0, 0, 0, 0.05);
  overflow: hidden;
  text-align: center;
  transition: transform 0.3s ease;
}

.page-index-promo-card:hover {
  transform: translateY(-5px);
}

.page-index-promo-image {
  width: 100%;
  height: 200px;
  object-fit: cover;
}

.page-index-promo-card h3 {
  font-size: 1.4em;
  color: var(--page-index-primary-color);
  margin: 20px 15px 10px;
}

.page-index-promo-card p {
  font-size: 0.95em;
  color: #666;
  padding: 0 15px 20px;
}

.page-index-promo-card .page-index-btn {
  margin-bottom: 20px;
}

.page-index-cta-fullwidth {
  background-color: var(--page-index-primary-color);
  color: var(--page-index-text-light);
  padding: 40px;
  border-radius: 10px;
  text-align: center;
}

.page-index-cta-fullwidth p {
  font-size: 1.2em;
  margin-bottom: 20px;
}

/* Guide Section */
.page-index-guide {
  padding: 80px 0;
  background-color: #f0f4f8;
}

.page-index-guide-item {
  background-color: var(--page-index-bg-light);
  border-radius: 10px;
  box-shadow: 0 5px 15px rgba(0, 0, 0, 0.05);
  padding: 30px;
}

.page-index-guide-title {
  font-size: 1.8em;
  color: var(--page-index-primary-color);
  margin-bottom: 15px;
}

.page-index-guide-item p {
  margin-bottom: 20px;
  color: #555;
}

/* Mobile App Section */
.page-index-mobile-app {
  padding: 80px 0;
  background-color: var(--page-index-bg-dark);
  color: var(--page-index-text-light);
}

.page-index-mobile-app .page-index-section-title {
  color: var(--page-index-secondary-color);
  text-align: left;
}

.page-index-mobile-app .page-index-section-description,
.page-index-app-content p {
  text-align: left;
  color: var(--page-index-text-light);
  margin-bottom: 20px;
}

.page-index-app-image-wrapper {
  text-align: center;
}

.page-index-app-image {
  max-width: 80%;
  height: auto;
  border-radius: 15px;
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.3);
}

/* Responsible Gaming Section */
.page-index-responsible-gaming {
  padding: 80px 0;
  background-color: var(--page-index-bg-light);
}

.page-index-responsible-list {
  list-style: none;
  padding: 0;
  max-width: 800px;
  margin: 40px auto;
}

.page-index-responsible-list li {
  background-color: #f9f9f9;
  border-left: 5px solid var(--page-index-primary-color);
  margin-bottom: 15px;
  padding: 20px;
  border-radius: 5px;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.05);
  font-size: 1.05em;
}

.page-index-responsible-list li strong {
  color: var(--page-index-primary-color);
}

.page-index-responsible-image {
  display: block;
  margin: 40px auto 0;
  max-width: 150px;
  height: auto;
  opacity: 0.8;
}

/* Detail Pages Section */
.page-index-detail-pages {
  padding: 80px 0;
  background-color: #f0f4f8;
}

.page-index-detail-card {
  background-color: var(--page-index-bg-light);
  border-radius: 10px;
  box-shadow: 0 5px 15px rgba(0, 0, 0, 0.05);
  padding: 30px;
  text-align: center;
}

.page-index-detail-title {
  font-size: 1.6em;
  margin-bottom: 15px;
}

.page-index-detail-title a {
  color: var(--page-index-primary-color);
  text-decoration: none;
}

.page-index-detail-title a:hover {
  text-decoration: underline;
  color: var(--page-index-accent-dark);
}

.page-index-detail-description {
  font-size: 0.95em;
  color: #666;
  margin-bottom: 20px;
}

/* FAQ Section */
.page-index-faq {
  padding: 80px 0;
  background-color: var(--page-index-bg-light);
}

.page-index-accordion-item {
  border: 1px solid #ddd;
  border-radius: 8px;
  margin-bottom: 15px;
  overflow: hidden;
}

.page-index-accordion-header {
  background-color: var(--page-index-primary-color);
  color: var(--page-index-text-light);
  padding: 18px 25px;
  width: 100%;
  text-align: left;
  border: none;
  cursor: pointer;
  font-size: 1.2em;
  font-weight: bold;
  transition: background-color 0.3s ease;
  position: relative;
}

.page-index-accordion-header:hover {
  background-color: var(--page-index-bg-dark);
}

.page-index-accordion-header::after {
  content: '+';
  position: absolute;
  right: 25px;
  top: 50%;
  transform: translateY(-50%);
  font-size: 1.5em;
}

.page-index-accordion-header.active::after {
  content: '-';
}

.page-index-accordion-content {
  padding: 0 25px;
  background-color: #fcfcfc;
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.4s ease-out, padding 0.4s ease-out;
}

.page-index-accordion-content.open {
  max-height: 500px; /* Max-height lớn hơn nội dung dự kiến */
  padding: 20px 25px;
}

.page-index-accordion-content p {
  margin-bottom: 15px;
  color: #555;
}

.page-index-accordion-content .page-index-btn {
  margin-top: 10px;
  margin-bottom: 10px;
}

/* Final CTA Section */
.page-index-cta-final {
  padding: 80px 0;
  background-color: var(--page-index-secondary-color);
  color: var(--page-index-primary-color);
  text-align: center;
}

.page-index-cta-final .page-index-section-title {
  color: var(--page-index-primary-color);
}

.page-index-cta-final .page-index-section-title::after {
  background-color: var(--page-index-primary-color);
}

.page-index-cta-final .page-index-section-description {
  color: var(--page-index-primary-color);
  font-size: 1.2em;
  margin-bottom: 30px;
}

.page-index-cta-final .page-index-btn-primary {
  background-color: var(--page-index-primary-color);
  color: var(--page-index-secondary-color);
  border-color: var(--page-index-primary-color);
}

.page-index-cta-final .page-index-btn-primary:hover {
  background-color: var(--page-index-bg-dark);
  color: var(--page-index-secondary-color);
  border-color: var(--page-index-bg-dark);
}

/* Responsive Design */
@media (max-width: 992px) {
  .page-index-hero-title {
    font-size: 2.8em;
  }

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

  .page-index-grid-2-col {
    grid-template-columns: 1fr;
  }

  .page-index-grid-reverse-mobile {
    display: flex;
    flex-direction: column-reverse;
  }

  .page-index-app-content,
  .page-index-mobile-app .page-index-section-title {
    text-align: center;
  }

  .page-index-app-image {
    margin-top: 30px;
  }
}

@media (max-width: 768px) {
  .page-index-hero {
    padding: 60px 0;
  }

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

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

  .page-index-hero-actions .page-index-btn {
    display: block;
    margin: 15px auto;
    width: 80%;
  }

  .page-index-section-title {
    font-size: 1.8em;
  }

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

  .page-index-game-grid, .page-index-promo-grid {
    grid-template-columns: 1fr;
  }

  .page-index-cta-fullwidth {
    padding: 30px;
  }

  .page-index-cta-fullwidth p {
    font-size: 1em;
  }

  .page-index-accordion-header {
    font-size: 1.1em;
    padding: 15px 20px;
  }

  .page-index-accordion-header::after {
    right: 20px;
  }

  .page-index-accordion-content {
    padding: 0 20px;
  }

  .page-index-accordion-content.open {
    padding: 15px 20px;
  }
}

@media (max-width: 480px) {
  .page-index-hero-title {
    font-size: 1.8em;
  }

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

  .page-index-container {
    padding: 0 15px;
  }

  .page-index-hero-actions .page-index-btn {
    width: 90%;
  }
}