:root {
      --primary-color: #e44d26; /* Cam đỏ */
      --secondary-color: #f7b731; /* Vàng cam */
      --dark-background: #1a1a1a; /* Nền tối */
      --light-text: #ffffff; /* Chữ sáng */
      --gray-text: #cccccc; /* Chữ xám */
      --accent-color: #4CAF50; /* Xanh lá cây */
      --border-color: #333333; /* Màu viền */
      --button-hover-color: #c23b1c; /* Màu nút hover */
    }

    /* Base styles for the page-ff66 container */
    .page-ff66 {
      font-family: 'Arial', sans-serif;
      color: var(--light-text);
      background-color: var(--dark-background);
      line-height: 1.6;
      overflow-x: hidden; /* Prevent horizontal scroll */
    }

    .page-ff66__section {
      padding: 40px 20px;
      max-width: 1200px;
      margin: 0 auto;
      text-align: center;
    }

    @media (max-width: 768px) {
      .page-ff66__section {
        padding: 20px 15px;
      }
    }

    /* Hero Section */
    .page-ff66__hero-section {
      background: linear-gradient(rgba(0, 0, 0, 0.7), rgba(0, 0, 0, 0.7)), url('[GALLERY:hero:1920x1080:casino,gaming,ff66_hero]') no-repeat center center/cover;
      padding-top: 10px; /* Minimal top padding as body handles header offset */
      padding-bottom: 60px;
      min-height: 500px;
      display: flex;
      flex-direction: column;
      justify-content: center;
      align-items: center;
      text-align: center;
      position: relative;
    }

    .page-ff66__hero-title {
      font-size: 3.5em;
      color: var(--primary-color);
      margin-bottom: 10px;
      text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.7);
      font-weight: bold;
    }

    .page-ff66__hero-subtitle {
      font-size: 1.5em;
      color: var(--light-text);
      margin-bottom: 30px;
      max-width: 800px;
      text-shadow: 1px 1px 3px rgba(0, 0, 0, 0.5);
    }

    .page-ff66__hero-buttons {
      display: flex;
      gap: 20px;
      flex-wrap: wrap;
      justify-content: center;
    }

    .page-ff66__button {
      background-color: var(--primary-color);
      color: var(--light-text);
      padding: 15px 30px;
      border: none;
      border-radius: 8px;
      font-size: 1.1em;
      cursor: pointer;
      transition: background-color 0.3s ease, transform 0.2s ease;
      text-decoration: none; /* Ensure no underline for button-like links */
      display: inline-block;
      font-weight: bold;
      box-shadow: 0 4px 10px rgba(0, 0, 0, 0.3);
    }

    .page-ff66__button:hover {
      background-color: var(--button-hover-color);
      transform: translateY(-2px);
    }

    .page-ff66__button--secondary {
      background-color: var(--accent-color);
    }

    .page-ff66__button--secondary:hover {
      background-color: #3a8a3e;
    }

    @media (max-width: 768px) {
      .page-ff66__hero-title {
        font-size: 2.5em;
      }
      .page-ff66__hero-subtitle {
        font-size: 1.2em;
      }
      .page-ff66__hero-buttons {
        flex-direction: column;
        gap: 15px;
      }
      .page-ff66__button {
        width: 100%;
        max-width: 300px;
        margin: 0 auto;
      }
    }

    /* Floating Buttons for Register/Login */
    .page-ff66__floating-buttons {
      position: fixed;
      bottom: 20px;
      right: 20px;
      display: flex;
      flex-direction: column;
      gap: 10px;
      z-index: 1000;
    }

    .page-ff66__floating-button {
      background-color: var(--secondary-color);
      color: var(--dark-background);
      padding: 12px 20px;
      border-radius: 50px;
      font-weight: bold;
      font-size: 1em;
      text-align: center;
      box-shadow: 0 4px 15px rgba(0, 0, 0, 0.4);
      transition: background-color 0.3s ease, transform 0.2s ease;
      text-decoration: none;
      display: block; /* Ensure it takes full width of its container */
      min-width: 100px;
    }

    .page-ff66__floating-button:hover {
      background-color: #e6a020;
      transform: scale(1.05);
    }

    .page-ff66__floating-button--register {
      background-color: var(--primary-color);
      color: var(--light-text);
    }

    .page-ff66__floating-button--register:hover {
      background-color: var(--button-hover-color);
    }

    @media (max-width: 768px) {
      .page-ff66__floating-buttons {
        bottom: 15px;
        right: 15px;
        flex-direction: row; /* Arrange horizontally on small screens */
        width: calc(100% - 30px); /* Adjust width to fit */
        justify-content: space-around;
      }
      .page-ff66__floating-button {
        flex: 1; /* Distribute space evenly */
        padding: 10px 15px;
        font-size: 0.9em;
        min-width: unset; /* Remove min-width constraint */
      }
    }


    /* General Section Styling */
    .page-ff66__heading {
      font-size: 2.5em;
      color: var(--primary-color);
      margin-bottom: 30px;
      position: relative;
      padding-bottom: 10px;
      display: inline-block;
    }

    .page-ff66__heading::after {
      content: '';
      position: absolute;
      left: 50%;
      bottom: 0;
      transform: translateX(-50%);
      width: 80px;
      height: 4px;
      background-color: var(--secondary-color);
      border-radius: 2px;
    }

    @media (max-width: 768px) {
      .page-ff66__heading {
        font-size: 2em;
        margin-bottom: 20px;
      }
    }

    /* Game Categories/Product Display */
    .page-ff66__game-categories {
      display: grid;
      grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
      gap: 30px;
      margin-top: 40px;
    }

    .page-ff66__game-card {
      background-color: #2a2a2a;
      border-radius: 12px;
      overflow: hidden;
      box-shadow: 0 6px 20px rgba(0, 0, 0, 0.4);
      transition: transform 0.3s ease, box-shadow 0.3s ease;
      display: flex;
      flex-direction: column;
      height: 100%; /* Ensure cards are same height */
    }

    .page-ff66__game-card:hover {
      transform: translateY(-5px);
      box-shadow: 0 10px 30px rgba(0, 0, 0, 0.6);
    }

    .page-ff66__game-image {
      width: 100%;
      height: 200px; /* Fixed height for consistency */
      object-fit: cover;
      display: block;
      border-bottom: 2px solid var(--primary-color);
      max-width: 100%;
      box-sizing: border-box;
    }
    .page-ff66__game-image img {
      max-width: 100%;
      height: auto;
      display: block;
      box-sizing: border-box;
    }

    .page-ff66__game-content {
      padding: 20px;
      flex-grow: 1; /* Allow content to grow and push button to bottom */
      display: flex;
      flex-direction: column;
      justify-content: space-between;
    }

    .page-ff66__game-title {
      font-size: 1.8em;
      color: var(--secondary-color);
      margin-bottom: 10px;
    }

    .page-ff66__game-description {
      font-size: 1em;
      color: var(--gray-text);
      margin-bottom: 20px;
      flex-grow: 1; /* Allows description to take up available space */
    }

    .page-ff66__game-button {
      background-color: var(--primary-color);
      color: var(--light-text);
      padding: 10px 20px;
      border: none;
      border-radius: 5px;
      font-size: 1em;
      cursor: pointer;
      transition: background-color 0.3s ease;
      width: 100%;
      display: block; /* Make button full width */
      text-decoration: none; /* Ensure no underline for button-like links */
    }

    .page-ff66__game-button:hover {
      background-color: var(--button-hover-color);
    }

    @media (max-width: 768px) {
      .page-ff66__game-categories {
        grid-template-columns: 1fr;
      }
      .page-ff66__game-card {
        margin: 0 auto;
        max-width: 350px; /* Constrain card width on mobile */
      }
      .page-ff66__game-title {
        font-size: 1.5em;
      }
      .page-ff66__game-description {
        font-size: 0.95em;
      }
    }

    /* Promotions Section */
    .page-ff66__promotions-grid {
      display: grid;
      grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
      gap: 30px;
      margin-top: 40px;
    }

    .page-ff66__promo-card {
      background-color: #2a2a2a;
      border-radius: 12px;
      overflow: hidden;
      box-shadow: 0 6px 20px rgba(0, 0, 0, 0.4);
      text-align: left;
      transition: transform 0.3s ease, box-shadow 0.3s ease;
      height: 100%;
      display: flex;
      flex-direction: column;
    }

    .page-ff66__promo-card:hover {
      transform: translateY(-5px);
      box-shadow: 0 10px 30px rgba(0, 0, 0, 0.6);
    }

    .page-ff66__promo-image {
      width: 100%;
      height: 220px;
      object-fit: cover;
      display: block;
      border-bottom: 2px solid var(--accent-color);
      max-width: 100%;
      box-sizing: border-box;
    }
    .page-ff66__promo-image img {
      max-width: 100%;
      height: auto;
      display: block;
      box-sizing: border-box;
    }

    .page-ff66__promo-content {
      padding: 20px;
      flex-grow: 1;
      display: flex;
      flex-direction: column;
      justify-content: space-between;
    }

    .page-ff66__promo-title {
      font-size: 1.6em;
      color: var(--primary-color);
      margin-bottom: 10px;
    }

    .page-ff66__promo-description {
      font-size: 0.95em;
      color: var(--gray-text);
      margin-bottom: 15px;
      flex-grow: 1;
    }

    .page-ff66__promo-button {
      background-color: var(--accent-color);
      color: var(--light-text);
      padding: 10px 20px;
      border: none;
      border-radius: 5px;
      font-size: 1em;
      cursor: pointer;
      transition: background-color 0.3s ease;
      width: 100%;
      display: block;
      text-decoration: none;
    }

    .page-ff66__promo-button:hover {
      background-color: #3a8a3e;
    }

    @media (max-width: 768px) {
      .page-ff66__promotions-grid {
        grid-template-columns: 1fr;
      }
      .page-ff66__promo-card {
        margin: 0 auto;
        max-width: 350px;
      }
      .page-ff66__promo-title {
        font-size: 1.4em;
      }
    }

    /* About Section */
    .page-ff66__about-content {
      text-align: left;
      color: var(--gray-text);
      margin-top: 30px;
    }

    .page-ff66__about-content h3 {
      color: var(--secondary-color);
      font-size: 1.8em;
      margin-top: 25px;
      margin-bottom: 15px;
    }

    .page-ff66__about-content p {
      margin-bottom: 15px;
      font-size: 1.1em;
    }

    .page-ff66__about-features {
      list-style: none;
      padding: 0;
      display: grid;
      grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
      gap: 20px;
      margin-top: 20px;
    }

    .page-ff66__about-feature-item {
      background-color: #2a2a2a;
      border-radius: 8px;
      padding: 20px;
      text-align: center;
      box-shadow: 0 4px 10px rgba(0, 0, 0, 0.3);
      border-left: 5px solid var(--primary-color);
      box-sizing: border-box; /* Crucial for mobile responsiveness */
    }

    .page-ff66__about-feature-item h4 {
      color: var(--light-text);
      font-size: 1.3em;
      margin-bottom: 10px;
    }

    .page-ff66__about-feature-item p {
      font-size: 0.95em;
      color: var(--gray-text);
    }

    @media (max-width: 768px) {
      .page-ff66__about-content h3 {
        font-size: 1.5em;
      }
      .page-ff66__about-content p {
        font-size: 1em;
      }
      .page-ff66__about-features {
        grid-template-columns: 1fr;
      }
      .page-ff66__about-feature-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 */
      }
    }

    /* FAQ Section */
    .page-ff66__faq-list {
      margin-top: 40px;
      text-align: left;
    }

    .page-ff66__faq-item {
      background-color: #2a2a2a;
      margin-bottom: 15px;
      border-radius: 8px;
      overflow: hidden;
      box-shadow: 0 4px 10px rgba(0, 0, 0, 0.3);
    }

    .page-ff66__faq-question {
      display: flex;
      justify-content: space-between;
      align-items: center;
      padding: 20px 25px;
      background-color: #333333;
      cursor: pointer;
      user-select: none;
      border-bottom: 1px solid var(--border-color);
      transition: background-color 0.3s ease;
    }

    .page-ff66__faq-question:hover {
      background-color: #444444;
    }

    .page-ff66__faq-question h3 {
      margin: 0;
      font-size: 1.3em;
      color: var(--light-text);
      pointer-events: none; /* Prevent h3 from blocking click on parent div */
      flex-grow: 1;
    }

    .page-ff66__faq-toggle {
      font-size: 1.8em;
      color: var(--primary-color);
      font-weight: bold;
      margin-left: 15px;
      pointer-events: none; /* Prevent toggle from blocking click on parent div */
      transition: transform 0.3s ease;
    }

    .page-ff66__faq-item.active .page-ff66__faq-toggle {
      transform: rotate(45deg); /* Rotate + to become X or - */
    }

    .page-ff66__faq-answer {
      max-height: 0;
      overflow: hidden;
      padding: 0 25px;
      color: var(--gray-text);
      font-size: 1em;
      transition: max-height 0.4s cubic-bezier(0.4, 0, 0.2, 1), padding 0.4s ease, opacity 0.4s ease;
      opacity: 0;
    }

    .page-ff66__faq-item.active .page-ff66__faq-answer {
      max-height: 2000px !important; /* Sufficiently large */
      padding: 20px 25px !important;
      opacity: 1;
    }

    @media (max-width: 768px) {
      .page-ff66__faq-question {
        padding: 15px 20px;
      }
      .page-ff66__faq-question h3 {
        font-size: 1.1em;
      }
      .page-ff66__faq-toggle {
        font-size: 1.5em;
      }
      .page-ff66__faq-answer {
        padding: 0 20px;
        font-size: 0.95em;
      }
      .page-ff66__faq-item.active .page-ff66__faq-answer {
        padding: 15px 20px !important;
      }
    }

    /* Call to Action Section */
    .page-ff66__cta-section {
      background-color: var(--primary-color);
      color: var(--light-text);
      padding: 60px 20px;
      text-align: center;
      margin-top: 50px;
    }

    .page-ff66__cta-title {
      font-size: 2.8em;
      margin-bottom: 20px;
      font-weight: bold;
    }

    .page-ff66__cta-description {
      font-size: 1.3em;
      margin-bottom: 30px;
      max-width: 800px;
      margin-left: auto;
      margin-right: auto;
    }

    @media (max-width: 768px) {
      .page-ff66__cta-section {
        padding: 40px 15px;
      }
      .page-ff66__cta-title {
        font-size: 2em;
      }
      .page-ff66__cta-description {
        font-size: 1.1em;
      }
    }