/* Biến màu sắc */
:root {
  --page-casino-primary-color: #113B7A;
  --page-casino-secondary-color: #1D5FD1;
  --page-casino-button-gradient: linear-gradient(180deg, #2B73F6 0%, #1144A6 100%);
  --page-casino-card-bg: #10233F;
  --page-casino-text-main: #F3F8FF;
  --page-casino-text-secondary: #AFC4E8;
  --page-casino-border-color: #244D84;
  --page-casino-glow-color: #4FA8FF;
  --page-casino-gold-color: #F2C14E;
  --page-casino-divider-color: #1B3357;
  --page-casino-deep-navy: #08162B;
}

.page-casino {
  font-family: 'Arial', sans-serif;
  color: var(--page-casino-text-main); /* Mặc định chữ sáng trên nền tối */
  background-color: var(--page-casino-deep-navy); /* Kế thừa từ body hoặc shared.css */
}

.page-casino__container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 15px;
  box-sizing: border-box;
}

.page-casino__section {
  padding: 60px 0;
  position: relative;
}

.page-casino__section--gradient {
  background: linear-gradient(180deg, var(--page-casino-deep-navy) 0%, var(--page-casino-primary-color) 100%);
}

.page-casino__dark-section {
  background-color: var(--page-casino-deep-navy);
}

.page-casino__hero-section {
  padding-top: 10px; /* Nhỏ hơn so với --header-offset của body */
  padding-bottom: 60px;
  position: relative;
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  overflow: hidden;
}

.page-casino__hero-image-wrapper {
  width: 100%;
  max-height: 700px; /* Giới hạn chiều cao cho ảnh hero */
  overflow: hidden;
  position: relative;
  z-index: 0;
}

.page-casino__hero-image {
  width: 100%;
  height: auto;
  display: block;
  object-fit: cover; /* Đảm bảo ảnh phủ đầy khung */
}

.page-casino__hero-content {
  position: relative;
  z-index: 1;
  padding-top: 40px;
  padding-bottom: 40px;
}

.page-casino__main-title {
  font-size: clamp(2.5rem, 5vw, 3.5rem);
  font-weight: 700;
  line-height: 1.2;
  color: var(--page-casino-text-main);
  margin-bottom: 20px;
}

.page-casino__lead-text {
  font-size: 1.15rem;
  color: var(--page-casino-text-secondary);
  max-width: 800px;
  margin: 0 auto 30px;
  line-height: 1.6;
}

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

.page-casino__btn-primary,
.page-casino__btn-secondary {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 15px 30px;
  border-radius: 8px;
  font-size: 1rem;
  font-weight: 600;
  text-decoration: none;
  transition: all 0.3s ease;
  box-sizing: border-box;
  white-space: normal;
  word-wrap: break-word;
  max-width: 100%;
  width: auto; /* Default to auto, will be 100% on mobile */
}

.page-casino__btn-primary {
  background: var(--page-casino-button-gradient);
  color: var(--page-casino-text-main);
  border: 2px solid transparent;
  box-shadow: 0 4px 15px rgba(0, 0, 0, 0.2);
}

.page-casino__btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(0, 0, 0, 0.3);
  filter: brightness(1.1);
}

.page-casino__btn-secondary {
  background: transparent;
  color: var(--page-casino-glow-color);
  border: 2px solid var(--page-casino-glow-color);
  box-shadow: 0 4px 15px rgba(0, 0, 0, 0.1);
}

.page-casino__btn-secondary:hover {
  transform: translateY(-2px);
  background: var(--page-casino-glow-color);
  color: var(--page-casino-deep-navy);
  box-shadow: 0 6px 20px rgba(0, 0, 0, 0.2);
}

.page-casino__section-title {
  font-size: clamp(2rem, 4vw, 2.8rem);
  font-weight: 700;
  color: var(--page-casino-text-main);
  text-align: center;
  margin-bottom: 25px;
}

.page-casino__section-description {
  font-size: 1.05rem;
  color: var(--page-casino-text-secondary);
  text-align: center;
  max-width: 900px;
  margin: 0 auto 50px;
  line-height: 1.6;
}

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

.page-casino__product-card,
.page-casino__feature-item,
.page-casino__step-item {
  background-color: var(--page-casino-card-bg);
  border-radius: 12px;
  padding: 30px;
  text-align: center;
  box-shadow: 0 8px 20px rgba(0, 0, 0, 0.3);
  transition: transform 0.3s ease, box-shadow 0.3s ease;
  border: 1px solid var(--page-casino-border-color);
  display: flex;
  flex-direction: column;
  justify-content: space-between;
}

.page-casino__product-card:hover,
.page-casino__feature-item:hover,
.page-casino__step-item:hover {
  transform: translateY(-5px);
  box-shadow: 0 12px 25px rgba(0, 0, 0, 0.4);
}

.page-casino__card-image {
  width: 100%;
  height: 200px;
  object-fit: cover;
  border-radius: 8px;
  margin-bottom: 20px;
  display: block;
}

.page-casino__card-title {
  font-size: 1.4rem;
  font-weight: 600;
  color: var(--page-casino-gold-color);
  margin-bottom: 15px;
  line-height: 1.3;
}

.page-casino__card-text {
  font-size: 0.95rem;
  color: var(--page-casino-text-secondary);
  line-height: 1.6;
  flex-grow: 1;
  margin-bottom: 20px;
}

.page-casino__btn--small {
  padding: 10px 20px;
  font-size: 0.9rem;
  border-radius: 6px;
}

.page-casino__features-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 30px;
  margin-top: 40px;
}

.page-casino__feature-title {
  font-size: 1.5rem;
  font-weight: 600;
  color: var(--page-casino-text-main);
  margin-bottom: 15px;
}

.page-casino__feature-text {
  font-size: 1rem;
  color: var(--page-casino-text-secondary);
  line-height: 1.6;
}

.page-casino__cta-center {
  text-align: center;
  margin-top: 60px;
}

.page-casino__how-to-start .page-casino__section-description {
  margin-bottom: 60px;
}

.page-casino__steps-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 30px;
}

.page-casino__step-item {
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
}

.page-casino__step-icon {
  width: 60px;
  height: 60px;
  border-radius: 50%;
  background: var(--page-casino-button-gradient);
  color: var(--page-casino-text-main);
  font-size: 2rem;
  font-weight: 700;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 20px;
  box-shadow: 0 4px 15px rgba(0, 0, 0, 0.3);
}

.page-casino__step-title {
  font-size: 1.4rem;
  font-weight: 600;
  color: var(--page-casino-gold-color);
  margin-bottom: 10px;
}

.page-casino__step-text {
  font-size: 0.95rem;
  color: var(--page-casino-text-secondary);
  line-height: 1.6;
}

.page-casino__faq-section {
  padding-bottom: 80px;
}

.page-casino__faq-list {
  margin-top: 40px;
}

details.page-casino__faq-item {
  margin-bottom: 15px;
  border-radius: 10px;
  border: 1px solid var(--page-casino-border-color);
  overflow: hidden;
  background: var(--page-casino-card-bg);
  box-shadow: 0 4px 10px rgba(0, 0, 0, 0.2);
}

details.page-casino__faq-item summary.page-casino__faq-question {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 18px 25px;
  cursor: pointer;
  user-select: none;
  list-style: none;
  transition: background-color 0.3s ease;
}

details.page-casino__faq-item summary.page-casino__faq-question::-webkit-details-marker {
  display: none;
}

details.page-casino__faq-item summary.page-casino__faq-question:hover {
  background: rgba(var(--page-casino-primary-color), 0.2);
}

.page-casino__faq-qtext {
  flex: 1;
  font-size: 1.1rem;
  font-weight: 600;
  line-height: 1.5;
  text-align: left;
  color: var(--page-casino-text-main);
}

.page-casino__faq-toggle {
  font-size: 28px;
  font-weight: bold;
  color: var(--page-casino-glow-color);
  flex-shrink: 0;
  margin-left: 15px;
  width: 30px;
  text-align: center;
  line-height: 1;
}

details.page-casino__faq-item .page-casino__faq-answer {
  padding: 0 25px 25px;
  background: rgba(var(--page-casino-primary-color), 0.1);
  border-radius: 0 0 10px 10px;
  color: var(--page-casino-text-secondary);
  font-size: 1rem;
  line-height: 1.7;
}

.page-casino__conclusion {
  padding-top: 40px;
}

.page-casino__article-body {
  font-size: 1.05rem;
  line-height: 1.7;
  color: var(--page-casino-text-secondary);
  text-align: justify;
  max-width: 900px;
  margin: 0 auto;
}

/* ========================================= */
/* Responsive Design - Tablet & Mobile */
/* ========================================= */

@media (max-width: 1024px) {
  .page-casino__hero-image-wrapper {
    max-height: 550px;
  }
  .page-casino__main-title {
    font-size: clamp(2rem, 4.5vw, 3rem);
  }
  .page-casino__lead-text {
    font-size: 1rem;
  }
  .page-casino__section-title {
    font-size: clamp(1.8rem, 3.5vw, 2.5rem);
  }
  .page-casino__section-description {
    font-size: 0.95rem;
  }
  .page-casino__products-grid,
  .page-casino__features-grid,
  .page-casino__steps-grid {
    gap: 20px;
  }
  .page-casino__product-card,
  .page-casino__feature-item,
  .page-casino__step-item {
    padding: 25px;
  }
  .page-casino__card-title,
  .page-casino__feature-title,
  .page-casino__step-title {
    font-size: 1.3rem;
  }
  .page-casino__faq-qtext {
    font-size: 1rem;
  }
  .page-casino__faq-toggle {
    font-size: 24px;
  }
  details.page-casino__faq-item summary.page-casino__faq-question {
    padding: 15px 20px;
  }
  details.page-casino__faq-item .page-casino__faq-answer {
    padding: 0 20px 20px;
  }
}

@media (max-width: 849px) {
  .page-casino__hero-image {
    object-fit: contain !important;
    aspect-ratio: unset !important;
  }
}

@media (max-width: 768px) {
  .page-casino__container {
    padding-left: 15px !important;
    padding-right: 15px !important;
    width: 100% !important;
    max-width: 100% !important;
    box-sizing: border-box !important;
  }
  .page-casino__section {
    padding: 40px 0;
  }
  .page-casino__hero-section {
    padding-top: 10px; /* Small padding top */
    padding-bottom: 40px;
  }
  .page-casino__hero-image-wrapper {
    max-height: 400px;
  }
  .page-casino__hero-image {
    max-width: 100% !important;
    width: 100% !important;
    height: auto !important;
  }
  .page-casino__main-title {
    font-size: clamp(1.8rem, 7vw, 2.5rem);
  }
  .page-casino__lead-text {
    font-size: 0.95rem;
    margin-bottom: 25px;
  }
  .page-casino__cta-buttons {
    flex-direction: column !important; /* Vertically stack buttons */
    gap: 15px;
    width: 100% !important;
    max-width: 100% !important;
  }
  .page-casino__btn-primary,
  .page-casino__btn-secondary {
    width: 100% !important;
    max-width: 100% !important;
    padding: 12px 20px;
    font-size: 0.95rem;
  }
  
  .page-casino__section-title {
    font-size: clamp(1.6rem, 6vw, 2.2rem);
    margin-bottom: 20px;
  }
  .page-casino__section-description {
    font-size: 0.9rem;
    margin-bottom: 40px;
  }
  
  /* Products Grid - 2 columns on mobile */
  .page-casino__products-grid {
    grid-template-columns: repeat(auto-fit, minmax(150px, 1fr)); /* At least 2 columns */
    gap: 15px;
    overflow-x: hidden; /* Prevent horizontal scroll */
  }
  .page-casino__product-card {
    padding: 20px;
  }
  .page-casino__card-image {
    height: 150px;
    max-width: 100% !important;
    width: 100% !important;
    height: auto !important;
  }
  .page-casino__card-title {
    font-size: 1.2rem;
  }
  .page-casino__card-text {
    font-size: 0.85rem;
  }
  .page-casino__btn--small {
    padding: 8px 15px;
    font-size: 0.8rem;
  }

  /* Features Grid */
  .page-casino__features-grid {
    grid-template-columns: 1fr;
    gap: 20px;
  }
  .page-casino__feature-item {
    padding: 20px;
  }
  .page-casino__feature-title {
    font-size: 1.3rem;
  }
  .page-casino__feature-text {
    font-size: 0.9rem;
  }
  .page-casino__cta-center {
    margin-top: 40px;
  }

  /* Steps Grid */
  .page-casino__steps-grid {
    grid-template-columns: 1fr;
    gap: 20px;
  }
  .page-casino__step-item {
    padding: 20px;
  }
  .page-casino__step-icon {
    width: 50px;
    height: 50px;
    font-size: 1.8rem;
  }
  .page-casino__step-title {
    font-size: 1.3rem;
  }
  .page-casino__step-text {
    font-size: 0.9rem;
  }

  /* FAQ Section */
  details.page-casino__faq-item {
    margin-bottom: 10px;
    border-radius: 8px;
  }
  details.page-casino__faq-item summary.page-casino__faq-question {
    padding: 15px;
  }
  .page-casino__faq-qtext {
    font-size: 0.95rem;
  }
  .page-casino__faq-toggle {
    font-size: 22px;
    width: 25px;
  }
  details.page-casino__faq-item .page-casino__faq-answer {
    padding: 0 15px 15px;
    font-size: 0.9rem;
  }

  /* Article Body */
  .page-casino__article-body {
    font-size: 0.95rem;
    text-align: left;
    max-width: 100% !important;
    padding-left: 0;
    padding-right: 0;
  }

  /* Ensure all images are responsive */
  .page-casino img {
    max-width: 100% !important;
    width: 100% !important;
    height: auto !important;
  }
}