:root {
      --page-39bt-primary-color: #ffd700; /* Gold */
      --page-39bt-secondary-color: #e0e0e0; /* Light grey */
      --page-39bt-dark-background: #1a1a1a; /* Dark background */
      --page-39bt-darker-background: #121212; /* Even darker background */
      --page-39bt-text-color: #f0f0f0; /* Light text */
      --page-39bt-accent-color: #007bff; /* Blue for buttons/highlights */
      --page-39bt-border-color: #333;
    }

    .page-39bt {
      font-family: 'Arial', sans-serif;
      color: var(--page-39bt-text-color);
      background-color: var(--page-39bt-dark-background);
      line-height: 1.6;
      padding-bottom: 80px; /* Space for floating buttons */
    }

    .page-39bt__section {
      padding: 40px 20px;
      margin: 0 auto;
      max-width: 1200px;
      box-sizing: border-box;
    }
    
    .page-39bt__section--dark {
        background-color: var(--page-39bt-darker-background);
    }

    .page-39bt__hero-section {
      background: linear-gradient(rgba(0, 0, 0, 0.7), rgba(0, 0, 0, 0.7)), url('[GALLERY:hero:1920x1080:betting,vietnam,39bt]') no-repeat center center/cover;
      text-align: center;
      padding: 10px 20px 80px; /* Small top padding, more bottom for content */
      display: flex;
      flex-direction: column;
      justify-content: center;
      align-items: center;
      min-height: 60vh;
      box-sizing: border-box;
    }
    
    .page-39bt__hero-title {
      font-size: 3.5em;
      color: var(--page-39bt-primary-color);
      margin-bottom: 15px;
      text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.7);
      text-transform: uppercase;
      letter-spacing: 2px;
    }

    .page-39bt__hero-subtitle {
      font-size: 1.5em;
      color: var(--page-39bt-secondary-color);
      margin-bottom: 30px;
      max-width: 800px;
    }

    .page-39bt__cta-button {
      background-color: var(--page-39bt-accent-color);
      color: #fff;
      padding: 15px 30px;
      border-radius: 8px;
      font-size: 1.2em;
      font-weight: bold;
      text-decoration: none;
      transition: background-color 0.3s ease;
      display: inline-block;
      cursor: pointer;
      border: none;
    }

    .page-39bt__cta-button:hover {
      background-color: #0056b3;
    }

    .page-39bt__heading {
      text-align: center;
      font-size: 2.5em;
      color: var(--page-39bt-primary-color);
      margin-bottom: 40px;
      text-transform: uppercase;
    }

    .page-39bt__text-content {
      font-size: 1.1em;
      margin-bottom: 20px;
      text-align: justify;
    }

    .page-39bt__game-showcase {
      text-align: center;
    }

    .page-39bt__game-grid {
      display: grid;
      grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
      gap: 25px;
      margin-top: 30px;
    }

    .page-39bt__game-item {
      background-color: var(--page-39bt-darker-background);
      border-radius: 12px;
      overflow: hidden;
      box-shadow: 0 5px 15px rgba(0, 0, 0, 0.4);
      transition: transform 0.3s ease, box-shadow 0.3s ease;
      border: 1px solid var(--page-39bt-border-color);
      display: flex;
      flex-direction: column;
      align-items: center;
      justify-content: center;
      padding-bottom: 15px;
    }

    .page-39bt__game-item:hover {
      transform: translateY(-5px);
      box-shadow: 0 8px 20px rgba(0, 0, 0, 0.6);
    }

    .page-39bt__game-image {
      width: 100%;
      height: 200px;
      object-fit: cover;
      display: block;
      border-bottom: 1px solid var(--page-39bt-border-color);
    }
    
    .page-39bt__game-title {
        font-size: 1.3em;
        color: var(--page-39bt-primary-color);
        margin: 15px 10px 10px;
        text-align: center;
    }

    .page-39bt__game-description {
        font-size: 0.9em;
        color: var(--page-39bt-secondary-color);
        padding: 0 15px;
        text-align: center;
    }

    .page-39bt__promotions-grid {
      display: grid;
      grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
      gap: 25px;
      margin-top: 30px;
    }

    .page-39bt__promotion-card {
      background-color: var(--page-39bt-darker-background);
      border-radius: 12px;
      overflow: hidden;
      box-shadow: 0 5px 15px rgba(0, 0, 0, 0.4);
      border: 1px solid var(--page-39bt-border-color);
      display: flex;
      flex-direction: column;
      align-items: center;
      text-align: center;
      padding-bottom: 20px;
    }

    .page-39bt__promotion-image {
      width: 100%;
      height: 220px;
      object-fit: cover;
      display: block;
      border-bottom: 1px solid var(--page-39bt-border-color);
    }

    .page-39bt__promotion-title {
      font-size: 1.4em;
      color: var(--page-39bt-primary-color);
      margin: 20px 15px 10px;
    }

    .page-39bt__promotion-description {
      font-size: 1em;
      color: var(--page-39bt-secondary-color);
      padding: 0 15px;
      margin-bottom: 20px;
    }
    
    .page-39bt__button {
        background-color: var(--page-39bt-accent-color);
        color: #fff;
        padding: 10px 20px;
        border-radius: 6px;
        font-size: 1em;
        font-weight: bold;
        text-decoration: none;
        transition: background-color 0.3s ease;
        display: inline-block;
        cursor: pointer;
        border: none;
    }

    .page-39bt__button:hover {
        background-color: #0056b3;
    }

    .page-39bt__list {
      list-style: none;
      padding: 0;
      margin: 30px 0;
      display: grid;
      grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
      gap: 20px;
    }

    .page-39bt__list-item {
      background-color: var(--page-39bt-darker-background);
      padding: 20px;
      border-radius: 10px;
      box-shadow: 0 4px 10px rgba(0, 0, 0, 0.3);
      display: flex;
      align-items: center;
      gap: 15px;
      border: 1px solid var(--page-39bt-border-color);
      box-sizing: border-box; /* Ensure padding and border are included in the width */
    }

    .page-39bt__list-item-icon {
      width: 50px; /* Placeholder, will be replaced by image */
      height: 50px;
      object-fit: contain;
      flex-shrink: 0;
    }

    .page-39bt__list-item-text {
      font-size: 1.1em;
      color: var(--page-39bt-secondary-color);
    }

    .page-39bt__providers-grid,
    .page-39bt__payment-grid {
      display: grid;
      grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
      gap: 20px;
      margin-top: 30px;
      justify-items: center;
    }

    .page-39bt__provider-item,
    .page-39bt__payment-item {
      background-color: var(--page-39bt-darker-background);
      padding: 20px;
      border-radius: 10px;
      text-align: center;
      box-shadow: 0 4px 10px rgba(0, 0, 0, 0.3);
      border: 1px solid var(--page-39bt-border-color);
      display: flex;
      flex-direction: column;
      justify-content: center;
      align-items: center;
      min-height: 120px; /* Ensure a minimum height for visual consistency */
      box-sizing: border-box;
    }

    .page-39bt__provider-logo,
    .page-39bt__payment-logo {
      max-width: 100%;
      height: 80px; /* Fixed height for logos */
      object-fit: contain;
      margin-bottom: 10px;
      display: block;
    }

    .page-39bt__provider-name,
    .page-39bt__payment-name {
      font-size: 1em;
      color: var(--page-39bt-secondary-color);
      font-weight: bold;
    }

    /* Floating Register/Login Buttons */
    .page-39bt__floating-buttons {
      position: fixed;
      bottom: 0;
      left: 0;
      width: 100%;
      display: flex;
      justify-content: space-around;
      padding: 10px 0;
      background-color: rgba(18, 18, 18, 0.95); /* Darker background with transparency */
      box-shadow: 0 -2px 10px rgba(0, 0, 0, 0.5);
      z-index: 1000;
      box-sizing: border-box;
    }

    .page-39bt__floating-btn {
      flex: 1;
      margin: 0 5px;
      padding: 12px 15px;
      border-radius: 5px;
      font-size: 1.1em;
      font-weight: bold;
      text-align: center;
      text-decoration: none;
      transition: background-color 0.3s ease;
      cursor: pointer;
      border: none;
    }

    .page-39bt__register-btn {
      background-color: var(--page-39bt-primary-color);
      color: var(--page-39bt-dark-background);
    }

    .page-39bt__register-btn:hover {
      background-color: #e6c200;
    }

    .page-39bt__login-btn {
      background-color: #333;
      color: var(--page-39bt-secondary-color);
    }

    .page-39bt__login-btn:hover {
      background-color: #555;
    }

    /* FAQ Section */
    .page-39bt__faq-section {
      background-color: var(--page-39bt-darker-background);
    }

    .page-39bt__faq-list {
      list-style: none;
      padding: 0;
      margin-top: 30px;
    }

    .page-39bt__faq-item {
      background-color: var(--page-39bt-dark-background);
      margin-bottom: 15px;
      border-radius: 10px;
      overflow: hidden;
      border: 1px solid var(--page-39bt-border-color);
      box-shadow: 0 2px 8px rgba(0, 0, 0, 0.3);
    }

    .page-39bt__faq-question {
      display: flex;
      justify-content: space-between;
      align-items: center;
      padding: 15px 20px;
      cursor: pointer;
      background-color: var(--page-39bt-dark-background);
      color: var(--page-39bt-primary-color);
      font-size: 1.2em;
      font-weight: bold;
      user-select: none;
      transition: background-color 0.3s ease;
    }

    .page-39bt__faq-question:hover {
      background-color: #2a2a2a;
    }
    
    .page-39bt__faq-question h3 {
        margin: 0;
        pointer-events: none; /* Prevent h3 from blocking click event on parent */
        color: inherit; /* Ensure h3 inherits color from parent */
    }

    .page-39bt__faq-toggle {
      font-size: 1.5em;
      line-height: 1;
      pointer-events: none; /* Prevent toggle icon from blocking click event on parent */
      transition: transform 0.3s ease;
    }

    .page-39bt__faq-item.active .page-39bt__faq-toggle {
      transform: rotate(45deg); /* Rotate '+' to 'x' or similar effect */
    }

    .page-39bt__faq-answer {
      max-height: 0;
      overflow: hidden;
      padding: 0 20px; /* Adjusted to match question padding */
      opacity: 0;
      transition: max-height 0.4s cubic-bezier(0.4, 0, 0.2, 1), padding 0.4s ease, opacity 0.4s ease;
      color: var(--page-39bt-secondary-color);
      font-size: 1em;
      background-color: #222;
    }

    .page-39bt__faq-item.active .page-39bt__faq-answer {
      max-height: 2000px !important; /* Sufficiently large value */
      padding: 20px !important; /* Adjusted to match question padding */
      opacity: 1;
    }
    
    /* Responsive styles */
    @media (max-width: 768px) {
      .page-39bt__hero-title {
        font-size: 2.5em;
      }

      .page-39bt__hero-subtitle {
        font-size: 1.2em;
      }

      .page-39bt__heading {
        font-size: 2em;
      }

      .page-39bt__section {
        padding: 30px 15px;
      }
      
      /* List items mobile responsiveness */
      .page-39bt__list {
        grid-template-columns: 1fr; /* Single column on mobile */
        margin-left: 0 !important;
        margin-right: 0 !important;
        padding: 0 !important;
        width: 100% !important;
        max-width: 100% !important;
        box-sizing: border-box !important;
      }

      .page-39bt__list-item {
        width: 100% !important;
        max-width: 100% !important;
        box-sizing: border-box !important;
        margin-left: 0 !important;
        margin-right: 0 !important;
        padding: 15px; /* Adjust padding for mobile */
      }
      
      .page-39bt__list-item-text {
        word-wrap: break-word !important;
        overflow-wrap: break-word !important;
        word-break: break-word !important;
      }

      .page-39bt__game-grid,
      .page-39bt__promotions-grid {
        grid-template-columns: 1fr;
      }

      .page-39bt__game-image,
      .page-39bt__promotion-image {
        height: 180px;
      }

      .page-39bt__providers-grid,
      .page-39bt__payment-grid {
        grid-template-columns: repeat(auto-fit, minmax(120px, 1fr));
      }
      
      /* Floating buttons */
      .page-39bt__floating-btn {
        font-size: 1em;
        padding: 10px 10px;
      }

      /* Images responsive optimization */
      img {
        max-width: 100% !important;
        height: auto !important;
        box-sizing: border-box !important;
      }
      .page-39bt__game-image,
      .page-39bt__promotion-image,
      .page-39bt__provider-logo,
      .page-39bt__payment-logo {
        max-width: 100% !important;
        height: auto !important; /* Allow height to adjust naturally */
        box-sizing: border-box !important;
      }
      
      /* FAQ mobile adjustments */
      .page-39bt__faq-question {
        font-size: 1.1em;
        padding: 12px 15px;
      }
      .page-39bt__faq-answer {
        padding: 15px !important;
      }
    }