.page-index-registration-login {
  --primary-color: #FFD700; /* Gold */
  --secondary-color: #1E90FF; /* Deep Blue */
  --dark-bg: #1a1a1a; /* Dark background for contrast */
  --light-text: #ffffff;
  --dark-text: #333333;
  --gray-text: #cccccc;
  --card-bg: #2a2a2a;
  --border-color: #444444;
  --button-hover-bg: #ffd700;
  --button-hover-text: #1a1a1a;
  --faq-question-bg: #333333;
  --faq-answer-bg: #2a2a2a;
}

.page-index-registration-login h1, .page-index-registration-login h2, .page-index-registration-login h3, .page-index-registration-login h4, .page-index-registration-login h5, .page-index-registration-login h6 {
  color: var(--primary-color);
  font-weight: bold;
  margin-bottom: 20px;
}

.page-index-registration-login p {
  color: var(--light-text);
  line-height: 1.6;
  margin-bottom: 15px;
}

.page-index-registration-login strong {
  color: var(--primary-color);
}

.page-index-registration-login a {
  color: var(--secondary-color);
  text-decoration: none;
}

.page-index-registration-login a:hover {
  text-decoration: underline;
  color: var(--primary-color);
}

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

/* HERO Section */
.page-index-registration-login .hero-section {
  position: relative;
  width: 100%;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: 60px 20px;
  background-color: var(--dark-bg);
  overflow: hidden;
}

.page-index-registration-login .hero-container {
  position: relative;
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  z-index: 1;
}

.page-index-registration-login .hero-image {
  width: 100%;
  max-width: 1000px;
  margin-bottom: 30px;
  border-radius: 12px;
  overflow: hidden;
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.5);
}

.page-index-registration-login .hero-image img {
  width: 100%;
  height: auto;
  display: block;
  object-fit: cover;
}

.page-index-registration-login .hero-content {
  position: relative;
  z-index: 2;
  text-align: center;
  width: 100%;
  padding: 20px;
}

.page-index-registration-login .hero-content h1 {
  font-size: 3.5em;
  color: var(--primary-color);
  margin-bottom: 25px;
  text-shadow: 2px 2px 8px rgba(0, 0, 0, 0.7);
}

.page-index-registration-login .hero-content p {
  font-size: 1.2em;
  color: var(--light-text);
  max-width: 800px;
  margin: 0 auto 40px auto;
  text-shadow: 1px 1px 4px rgba(0, 0, 0, 0.5);
}

.page-index-registration-login .hero-ctas {
  display: flex;
  gap: 20px;
  justify-content: center;
  flex-wrap: wrap;
}

.page-index-registration-login .cta-button {
  display: inline-block;
  padding: 18px 45px;
  text-decoration: none;
  border-radius: 8px;
  font-size: 1.2em;
  font-weight: bold;
  transition: all 0.3s ease;
  box-shadow: 0 5px 15px rgba(0, 0, 0, 0.3);
  text-transform: uppercase;
}

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

.page-index-registration-login .primary-button:hover {
  background: var(--secondary-color);
  color: var(--light-text);
  transform: translateY(-3px);
  box-shadow: 0 8px 20px rgba(0, 0, 0, 0.4);
}

.page-index-registration-login .secondary-button {
  background: var(--secondary-color);
  color: var(--light-text);
  border: 2px solid var(--primary-color);
}

.page-index-registration-login .secondary-button:hover {
  background: var(--primary-color);
  color: var(--dark-text);
  transform: translateY(-3px);
  box-shadow: 0 8px 20px rgba(0, 0, 0, 0.4);
}

.page-index-registration-login .large-button {
  padding: 20px 60px;
  font-size: 1.3em;
}

/* General Section Styling */
.page-index-registration-login section {
  padding: 80px 0;
  background-color: var(--dark-bg);
  color: var(--light-text);
  text-align: center;
}

.page-index-registration-login section:nth-of-type(even) {
  background-color: #222222;
}

.page-index-registration-login section h2 {
  font-size: 2.5em;
  margin-bottom: 40px;
  color: var(--primary-color);
}

.page-index-registration-login section p {
  max-width: 900px;
  margin: 0 auto 30px auto;
}

/* Module 1: Giới thiệu chung */
.page-index-registration-login .section-intro .intro-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 30px;
  margin-top: 50px;
}

.page-index-registration-login .section-intro .intro-item {
  background-color: var(--card-bg);
  padding: 30px;
  border-radius: 10px;
  box-shadow: 0 5px 20px rgba(0, 0, 0, 0.4);
  text-align: center;
  transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.page-index-registration-login .section-intro .intro-item:hover {
  transform: translateY(-5px);
  box-shadow: 0 10px 25px rgba(0, 0, 0, 0.6);
}

.page-index-registration-login .section-intro .intro-icon {
  width: 100%;
  max-width: 250px;
  height: auto;
  margin-bottom: 20px;
  border-radius: 8px;
}

.page-index-registration-login .section-intro .intro-item h3 {
  color: var(--secondary-color);
  font-size: 1.5em;
  margin-bottom: 15px;
}

.page-index-registration-login .section-intro .intro-item p {
  color: var(--gray-text);
  font-size: 0.95em;
  margin: 0;
}

/* Module 2: Liên kết truy cập nhanh */
.page-index-registration-login .section-quick-links {
  background-color: #222222;
}

.page-index-registration-login .section-quick-links .link-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 30px;
  margin-top: 50px;
  margin-bottom: 60px;
}

.page-index-registration-login .section-quick-links .quick-link-card {
  display: block;
  background-color: var(--card-bg);
  padding: 30px;
  border-radius: 10px;
  box-shadow: 0 5px 20px rgba(0, 0, 0, 0.4);
  text-align: center;
  color: var(--light-text);
  transition: transform 0.3s ease, box-shadow 0.3s ease, background-color 0.3s ease;
}

.page-index-registration-login .section-quick-links .quick-link-card:hover {
  transform: translateY(-5px);
  box-shadow: 0 10px 25px rgba(0, 0, 0, 0.6);
  background-color: #3a3a3a;
}

.page-index-registration-login .section-quick-links .card-icon {
  width: 100%;
  max-width: 200px;
  height: auto;
  margin-bottom: 20px;
  border-radius: 8px;
}

.page-index-registration-login .section-quick-links .quick-link-card h3 {
  color: var(--primary-color);
  font-size: 1.4em;
  margin-bottom: 10px;
}

.page-index-registration-login .section-quick-links .quick-link-card p {
  color: var(--gray-text);
  font-size: 0.9em;
  margin: 0;
}

/* Module 3: Giới thiệu trò chơi/dịch vụ cốt lõi */
.page-index-registration-login .section-core-games .games-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 30px;
  margin-top: 50px;
}

.page-index-registration-login .section-core-games .game-card {
  background-color: var(--card-bg);
  border-radius: 10px;
  overflow: hidden;
  box-shadow: 0 5px 20px rgba(0, 0, 0, 0.4);
  text-align: center;
  transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.page-index-registration-login .section-core-games .game-card:hover {
  transform: translateY(-5px);
  box-shadow: 0 10px 25px rgba(0, 0, 0, 0.6);
}

.page-index-registration-login .section-core-games .game-image {
  width: 100%;
  height: 200px;
  object-fit: cover;
  display: block;
}

.page-index-registration-login .section-core-games .game-card h3 {
  color: var(--primary-color);
  font-size: 1.6em;
  margin: 20px 15px 10px 15px;
}

.page-index-registration-login .section-core-games .game-card p {
  color: var(--gray-text);
  font-size: 0.95em;
  margin: 0 15px 20px 15px;
}

.page-index-registration-login .section-core-games .game-button {
  display: inline-block;
  background: var(--secondary-color);
  color: var(--light-text);
  padding: 10px 25px;
  border-radius: 5px;
  margin-bottom: 20px;
  font-weight: bold;
  transition: background-color 0.3s ease, transform 0.3s ease;
}

.page-index-registration-login .section-core-games .game-button:hover {
  background: var(--primary-color);
  color: var(--dark-text);
  transform: translateY(-2px);
}

/* Module 4: Chương trình khuyến mãi */
.page-index-registration-login .section-promotions {
  background-color: #222222;
}

.page-index-registration-login .section-promotions .promo-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 30px;
  margin-top: 50px;
}

.page-index-registration-login .section-promotions .promo-card {
  background-color: var(--card-bg);
  border-radius: 10px;
  overflow: hidden;
  box-shadow: 0 5px 20px rgba(0, 0, 0, 0.4);
  text-align: center;
  transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.page-index-registration-login .section-promotions .promo-card:hover {
  transform: translateY(-5px);
  box-shadow: 0 10px 25px rgba(0, 0, 0, 0.6);
}

.page-index-registration-login .section-promotions .promo-image {
  width: 100%;
  height: 180px;
  object-fit: cover;
  display: block;
}

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

.page-index-registration-login .section-promotions .promo-card p {
  color: var(--gray-text);
  font-size: 0.9em;
  margin: 0 15px 20px 15px;
}

.page-index-registration-login .section-promotions .promo-button {
  display: inline-block;
  background: var(--primary-color);
  color: var(--dark-text);
  padding: 10px 25px;
  border-radius: 5px;
  margin-bottom: 20px;
  font-weight: bold;
  transition: background-color 0.3s ease, transform 0.3s ease;
}

.page-index-registration-login .section-promotions .promo-button:hover {
  background: var(--secondary-color);
  color: var(--light-text);
  transform: translateY(-2px);
}

/* Module 5: An toàn và Hỗ trợ Khách hàng */
.page-index-registration-login .section-security-support .security-support-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 30px;
  margin-top: 50px;
  margin-bottom: 60px;
}

.page-index-registration-login .section-security-support .ss-item {
  background-color: var(--card-bg);
  padding: 30px;
  border-radius: 10px;
  box-shadow: 0 5px 20px rgba(0, 0, 0, 0.4);
  text-align: center;
  transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.page-index-registration-login .section-security-support .ss-item:hover {
  transform: translateY(-5px);
  box-shadow: 0 10px 25px rgba(0, 0, 0, 0.6);
}

.page-index-registration-login .section-security-support .ss-icon {
  width: 100%;
  max-width: 200px;
  height: auto;
  margin-bottom: 20px;
  border-radius: 8px;
}

.page-index-registration-login .section-security-support .ss-item h3 {
  color: var(--secondary-color);
  font-size: 1.5em;
  margin-bottom: 15px;
}

.page-index-registration-login .section-security-support .ss-item p {
  color: var(--gray-text);
  font-size: 0.95em;
  margin: 0;
}

.page-index-registration-login .contact-cta {
  margin-top: 40px;
}

/* Module 6: Câu hỏi thường gặp (FAQ) */
.page-index-registration-login .section-faq {
  background-color: #222222;
}

.page-index-registration-login .section-faq .faq-list {
  max-width: 900px;
  margin: 50px auto 0 auto;
  text-align: left;
}

.page-index-registration-login .faq-item {
  margin-bottom: 15px;
  border-radius: 8px;
  overflow: hidden;
  box-shadow: 0 2px 10px rgba(0, 0, 0, 0.3);
}

.page-index-registration-login .faq-question {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 18px 25px;
  background: var(--faq-question-bg);
  border: 1px solid var(--border-color);
  border-radius: 8px;
  cursor: pointer;
  transition: background-color 0.3s ease;
}

.page-index-registration-login .faq-question:hover {
  background: #444444;
}

.page-index-registration-login .faq-question h3 {
  color: var(--light-text);
  font-size: 1.15em;
  margin: 0;
}

.page-index-registration-login .faq-toggle {
  font-size: 1.8em;
  font-weight: bold;
  color: var(--primary-color);
  transition: transform 0.3s ease;
  line-height: 1;
}

.page-index-registration-login .faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.4s ease-out, padding 0.4s ease-out;
  padding: 0 25px;
  background: var(--faq-answer-bg);
  color: var(--gray-text);
  border-radius: 0 0 8px 8px;
}

.page-index-registration-login .faq-item.active .faq-answer {
  max-height: 500px; /* Sufficient height to contain content */
  padding: 20px 25px;
  border: 1px solid var(--border-color);
  border-top: none;
}

.page-index-registration-login .faq-item.active .faq-question {
  border-radius: 8px 8px 0 0;
}

.page-index-registration-login .faq-item.active .faq-toggle {
  transform: rotate(45deg);
  color: var(--secondary-color);
}

.page-index-registration-login .faq-answer p {
  margin: 0;
  padding-bottom: 5px;
}

/* Module 7: Nội dung blog mới nhất */
.page-index-registration-login .section-blog .blog-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 30px;
  margin-top: 50px;
}

.page-index-registration-login .section-blog .blog-card {
  background-color: var(--card-bg);
  border-radius: 10px;
  overflow: hidden;
  box-shadow: 0 5px 20px rgba(0, 0, 0, 0.4);
  text-align: left;
  transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.page-index-registration-login .section-blog .blog-card:hover {
  transform: translateY(-5px);
  box-shadow: 0 10px 25px rgba(0, 0, 0, 0.6);
}

.page-index-registration-login .section-blog .blog-image {
  width: 100%;
  height: 200px;
  object-fit: cover;
  display: block;
}

.page-index-registration-login .section-blog .blog-card h3 {
  font-size: 1.4em;
  margin: 20px 20px 10px 20px;
}

.page-index-registration-login .section-blog .blog-card h3 a {
  color: var(--primary-color);
  text-decoration: none;
}

.page-index-registration-login .section-blog .blog-card h3 a:hover {
  text-decoration: underline;
  color: var(--secondary-color);
}

.page-index-registration-login .section-blog .blog-card p {
  color: var(--gray-text);
  font-size: 0.9em;
  margin: 0 20px 15px 20px;
}

.page-index-registration-login .section-blog .read-more {
  display: inline-block;
  background: var(--secondary-color);
  color: var(--light-text);
  padding: 8px 15px;
  border-radius: 5px;
  margin: 0 20px 20px 20px;
  font-size: 0.9em;
  font-weight: bold;
  transition: background-color 0.3s ease, transform 0.3s ease;
}

.page-index-registration-login .section-blog .read-more:hover {
  background: var(--primary-color);
  color: var(--dark-text);
  transform: translateY(-2px);
}

/* Responsive Design */
@media (max-width: 1024px) {
  .page-index-registration-login .hero-content h1 {
    font-size: 3em;
  }
  .page-index-registration-login .hero-content p {
    font-size: 1.1em;
  }
  .page-index-registration-login .cta-button {
    padding: 15px 35px;
    font-size: 1.1em;
  }
  .page-index-registration-login .large-button {
    padding: 18px 50px;
    font-size: 1.2em;
  }
  .page-index-registration-login section h2 {
    font-size: 2em;
  }
}

@media (max-width: 768px) {
  .page-index-registration-login .hero-section {
    padding: 40px 15px;
  }
  .page-index-registration-login .hero-image {
    margin-bottom: 20px;
  }
  .page-index-registration-login .hero-content h1 {
    font-size: 2.2em;
    margin-bottom: 15px;
  }
  .page-index-registration-login .hero-content p {
    font-size: 1em;
    margin-bottom: 30px;
  }
  .page-index-registration-login .hero-ctas {
    flex-direction: column;
    gap: 15px;
  }
  .page-index-registration-login .cta-button {
    width: 100%;
    max-width: 300px;
    padding: 14px 30px;
    font-size: 1em;
  }
  .page-index-registration-login .large-button {
    width: 100%;
    max-width: 300px;
    padding: 16px 40px;
    font-size: 1.1em;
  }
  .page-index-registration-login section {
    padding: 50px 0;
  }
  .page-index-registration-login section h2 {
    font-size: 1.8em;
    margin-bottom: 30px;
  }
  .page-index-registration-login .intro-grid, 
  .page-index-registration-login .link-grid, 
  .page-index-registration-login .games-grid, 
  .page-index-registration-login .promo-grid,
  .page-index-registration-login .security-support-grid,
  .page-index-registration-login .blog-grid {
    grid-template-columns: 1fr;
  }
  .page-index-registration-login .faq-question {
    padding: 15px 20px;
  }
  .page-index-registration-login .faq-question h3 {
    font-size: 1em;
  }
  .page-index-registration-login .faq-toggle {
    font-size: 1.5em;
  }
  .page-index-registration-login .faq-answer {
    padding: 0 20px;
  }
  .page-index-registration-login .faq-item.active .faq-answer {
    padding: 15px 20px;
  }
}

@media (max-width: 480px) {
  .page-index-registration-login .hero-content h1 {
    font-size: 1.8em;
  }
  .page-index-registration-login .hero-content p {
    font-size: 0.9em;
  }
  .page-index-registration-login .cta-button {
    font-size: 0.9em;
    padding: 12px 25px;
  }
  .page-index-registration-login .large-button {
    padding: 14px 30px;
    font-size: 1em;
  }
  .page-index-registration-login section h2 {
    font-size: 1.5em;
  }
  .page-index-registration-login .intro-item, 
  .page-index-registration-login .quick-link-card, 
  .page-index-registration-login .game-card, 
  .page-index-registration-login .promo-card,
  .page-index-registration-login .ss-item,
  .page-index-registration-login .blog-card {
    padding: 20px;
  }
  .page-index-registration-login .intro-item h3, 
  .page-index-registration-login .quick-link-card h3, 
  .page-index-registration-login .game-card h3, 
  .page-index-registration-login .promo-card h3,
  .page-index-registration-login .ss-item h3,
  .page-index-registration-login .blog-card h3 {
    font-size: 1.2em;
  }
  .page-index-registration-login .faq-question h3 {
    font-size: 0.95em;
  }
}