:root {
      --primary-color: #f39c12; /* Cam/Vàng */
      --secondary-color: #e74c3c; /* Đỏ */
      --background-dark: #1a1a1a; /* Xám đậm */
      --background-light: #2c3e50; /* Xanh xám đậm */
      --text-light: #ecf0f1; /* Xám nhạt */
      --text-dark: #34495e; /* Văn bản tối */
      --border-color: #34495e; /* Màu viền */
      --card-background: #283747; /* Nền thẻ */
      --button-hover: #e67e22; /* Nút hover */
    }

    .page-topbookmaker {
      font-family: 'Arial', sans-serif;
      color: var(--text-light);
      background-color: var(--background-dark);
      line-height: 1.6;
      padding: 0;
      margin: 0 auto;
      max-width: 1200px;
      box-sizing: border-box;
    }

    .page-topbookmaker__section {
      padding: 40px 20px;
      margin-bottom: 20px;
      background-color: var(--background-light);
      border-radius: 8px;
      box-shadow: 0 4px 15px rgba(0, 0, 0, 0.3);
      box-sizing: border-box;
    }

    .page-topbookmaker__section--dark {
      background-color: var(--background-dark);
    }

    .page-topbookmaker__heading {
      color: var(--primary-color);
      text-align: center;
      margin-bottom: 30px;
      font-size: 2.5em;
      line-height: 1.2;
    }

    .page-topbookmaker__subheading {
      color: var(--primary-color);
      font-size: 1.8em;
      margin-bottom: 20px;
      border-bottom: 2px solid var(--border-color);
      padding-bottom: 10px;
      text-align: center;
    }

    .page-topbookmaker__paragraph {
      margin-bottom: 15px;
      font-size: 1.1em;
      color: var(--text-light);
    }

    .page-topbookmaker__list {
      list-style: none;
      padding: 0;
      margin-bottom: 20px;
    }

    .page-topbookmaker__list-item {
      background-color: var(--card-background);
      margin-bottom: 10px;
      padding: 15px 20px;
      border-left: 5px solid var(--primary-color);
      border-radius: 4px;
      font-size: 1.05em;
      color: var(--text-light);
      display: flex;
      align-items: center;
    }

    .page-topbookmaker__list-item::before {
      content: '✅';
      margin-right: 10px;
      font-size: 1.2em;
      color: var(--primary-color);
    }

    .page-topbookmaker__button {
      display: inline-block;
      background-color: var(--primary-color);
      color: var(--background-dark);
      padding: 12px 25px;
      border-radius: 5px;
      text-decoration: none;
      font-weight: bold;
      transition: background-color 0.3s ease;
      border: none;
      cursor: pointer;
      font-size: 1.1em;
    }

    .page-topbookmaker__button:hover {
      background-color: var(--button-hover);
      color: var(--text-light);
    }

    /* Hero Section */
    .page-topbookmaker__hero-section {
      position: relative;
      text-align: center;
      padding: 120px 20px 40px; /* Adjusted padding-top for fixed header */
      background-color: var(--background-dark);
      overflow: hidden;
      box-sizing: border-box;
    }

    .page-topbookmaker__hero-image-wrapper {
      width: 100%;
      max-width: 100%;
      overflow: hidden;
      box-sizing: border-box;
      margin: 0 auto 20px;
    }

    .page-topbookmaker__hero-image {
      width: 100%;
      height: auto;
      display: block;
      border-radius: 8px;
      object-fit: cover;
    }

    .page-topbookmaker__hero-title {
      color: var(--primary-color);
      font-size: 3.2em;
      margin-bottom: 20px;
      line-height: 1.2;
      text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.5);
    }

    .page-topbookmaker__hero-description {
      font-size: 1.3em;
      color: var(--text-light);
      max-width: 800px;
      margin: 0 auto 30px;
    }

    /* Floating Login Button */
    .page-topbookmaker__floating-login-button {
      position: fixed;
      bottom: 20px;
      left: 50%;
      transform: translateX(-50%);
      background-color: var(--secondary-color);
      color: var(--text-light);
      padding: 15px 30px;
      border-radius: 30px;
      text-decoration: none;
      font-weight: bold;
      font-size: 1.2em;
      z-index: 1000;
      box-shadow: 0 5px 20px rgba(0, 0, 0, 0.5);
      transition: background-color 0.3s ease, transform 0.3s ease;
      white-space: nowrap;
    }

    .page-topbookmaker__floating-login-button:hover {
      background-color: #c0392b;
      transform: translateX(-50%) translateY(-5px);
    }

    /* Top Bookmakers Grid */
    .page-topbookmaker__bookmakers-grid {
      display: grid;
      grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
      gap: 30px;
      margin-top: 30px;
    }

    .page-topbookmaker__bookmaker-card {
      background-color: var(--card-background);
      border-radius: 10px;
      overflow: hidden;
      box-shadow: 0 4px 10px rgba(0, 0, 0, 0.2);
      text-align: center;
      padding: 25px;
      transition: transform 0.3s ease, box-shadow 0.3s ease;
    }

    .page-topbookmaker__bookmaker-card:hover {
      transform: translateY(-5px);
      box-shadow: 0 8px 20px rgba(0, 0, 0, 0.4);
    }

    .page-topbookmaker__bookmaker-logo-wrapper {
      width: 100%;
      max-width: 100%;
      overflow: hidden;
      box-sizing: border-box;
      margin: 0 auto 15px;
      display: flex;
      justify-content: center;
      align-items: center;
      height: 100px; /* Ensure a consistent height for logos */
    }

    .page-topbookmaker__bookmaker-logo {
      max-width: 100%;
      max-height: 100px;
      height: auto;
      display: block;
      object-fit: contain;
      border-radius: 5px;
    }

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

    .page-topbookmaker__bookmaker-description {
      font-size: 1em;
      color: var(--text-light);
      margin-bottom: 15px;
      min-height: 60px; /* Ensure consistent height for descriptions */
    }

    .page-topbookmaker__bookmaker-features {
      list-style: none;
      padding: 0;
      margin-bottom: 20px;
      text-align: left;
    }

    .page-topbookmaker__bookmaker-feature-item {
      font-size: 0.95em;
      color: var(--text-light);
      margin-bottom: 5px;
      display: flex;
      align-items: center;
    }

    .page-topbookmaker__bookmaker-feature-item::before {
      content: '✔️';
      margin-right: 8px;
      color: #2ecc71; /* Green checkmark */
    }

    /* Criteria Section */
    .page-topbookmaker__criteria-grid {
      display: grid;
      grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
      gap: 25px;
      margin-top: 30px;
    }

    .page-topbookmaker__criterion-card {
      background-color: var(--card-background);
      padding: 20px;
      border-radius: 8px;
      text-align: center;
      box-shadow: 0 2px 8px rgba(0, 0, 0, 0.2);
      transition: transform 0.3s ease;
    }

    .page-topbookmaker__criterion-card:hover {
      transform: translateY(-3px);
    }

    .page-topbookmaker__criterion-icon-wrapper {
      width: 100%;
      max-width: 100%;
      overflow: hidden;
      box-sizing: border-box;
      margin: 0 auto 15px;
      height: 80px; /* Consistent height for icons */
      display: flex;
      justify-content: center;
      align-items: center;
    }

    .page-topbookmaker__criterion-icon {
      max-width: 80px;
      height: auto;
      display: block;
      object-fit: contain;
      margin: 0 auto;
    }

    .page-topbookmaker__criterion-title {
      color: var(--primary-color);
      font-size: 1.3em;
      margin-bottom: 10px;
    }

    .page-topbookmaker__criterion-description {
      font-size: 0.95em;
      color: var(--text-light);
    }

    /* Games Section */
    .page-topbookmaker__games-grid {
      display: grid;
      grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
      gap: 25px;
      margin-top: 30px;
    }

    .page-topbookmaker__game-card {
      background-color: var(--card-background);
      border-radius: 10px;
      overflow: hidden;
      box-shadow: 0 2px 8px rgba(0, 0, 0, 0.2);
      text-align: center;
      transition: transform 0.3s ease;
    }

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

    .page-topbookmaker__game-image-wrapper {
      width: 100%;
      max-width: 100%;
      overflow: hidden;
      box-sizing: border-box;
      height: 150px; /* Consistent height for game images */
      display: flex;
      justify-content: center;
      align-items: center;
    }

    .page-topbookmaker__game-image {
      width: 100%;
      height: 100%;
      object-fit: cover;
      display: block;
    }

    .page-topbookmaker__game-info {
      padding: 15px;
    }

    .page-topbookmaker__game-title {
      color: var(--primary-color);
      font-size: 1.3em;
      margin-bottom: 5px;
    }

    .page-topbookmaker__game-description {
      font-size: 0.9em;
      color: var(--text-light);
    }

    /* Providers Section */
    .page-topbookmaker__providers-grid {
      display: grid;
      grid-template-columns: repeat(auto-fit, minmax(120px, 1fr));
      gap: 20px;
      margin-top: 30px;
    }

    .page-topbookmaker__provider-logo-wrapper {
      background-color: #34495e;
      padding: 15px;
      border-radius: 8px;
      display: flex;
      justify-content: center;
      align-items: center;
      height: 80px;
      box-shadow: 0 2px 5px rgba(0, 0, 0, 0.2);
      transition: transform 0.3s ease;
      width: 100%;
      max-width: 100%;
      overflow: hidden;
      box-sizing: border-box;
    }

    .page-topbookmaker__provider-logo-wrapper:hover {
      transform: scale(1.05);
    }

    .page-topbookmaker__provider-logo {
      max-width: 90%;
      max-height: 60px;
      height: auto;
      display: block;
      object-fit: contain;
    }

    /* Payment Section */
    .page-topbookmaker__payment-grid {
      display: grid;
      grid-template-columns: repeat(auto-fit, minmax(100px, 1fr));
      gap: 20px;
      margin-top: 30px;
    }

    .page-topbookmaker__payment-logo-wrapper {
      background-color: #34495e;
      padding: 10px;
      border-radius: 8px;
      display: flex;
      justify-content: center;
      align-items: center;
      height: 70px;
      box-shadow: 0 2px 5px rgba(0, 0, 0, 0.2);
      transition: transform 0.3s ease;
      width: 100%;
      max-width: 100%;
      overflow: hidden;
      box-sizing: border-box;
    }

    .page-topbookmaker__payment-logo-wrapper:hover {
      transform: scale(1.05);
    }

    .page-topbookmaker__payment-logo {
      max-width: 90%;
      max-height: 50px;
      height: auto;
      display: block;
      object-fit: contain;
    }

    /* FAQ Section */
    .page-topbookmaker__faq-section {
      padding: 40px 20px;
      background-color: var(--background-light);
      border-radius: 8px;
      box-shadow: 0 4px 15px rgba(0, 0, 0, 0.3);
      box-sizing: border-box;
    }

    .page-topbookmaker__faq-item {
      background-color: var(--card-background);
      margin-bottom: 15px;
      border-radius: 8px;
      overflow: hidden;
      box-shadow: 0 2px 5px rgba(0, 0, 0, 0.2);
    }

    .page-topbookmaker__faq-question {
      display: flex;
      justify-content: space-between;
      align-items: center;
      padding: 20px 25px;
      background-color: #34495e;
      color: var(--text-light);
      cursor: pointer;
      user-select: none;
      transition: background-color 0.3s ease;
    }

    .page-topbookmaker__faq-question:hover {
      background-color: #4a6279;
    }

    .page-topbookmaker__faq-question h3 {
      margin: 0;
      font-size: 1.2em;
      color: var(--primary-color);
      pointer-events: none; /* Prevent h3 from blocking click event */
    }

    .page-topbookmaker__faq-toggle {
      font-size: 1.8em;
      font-weight: bold;
      color: var(--primary-color);
      transition: transform 0.3s ease;
      pointer-events: none; /* Prevent toggle from blocking click event */
    }

    .page-topbookmaker__faq-item.active .page-topbookmaker__faq-toggle {
      transform: rotate(45deg); /* Plus to X (or rotate to minus) */
    }

    .page-topbookmaker__faq-answer {
      max-height: 0;
      overflow: hidden;
      padding: 0 25px;
      opacity: 0;
      transition: max-height 0.4s cubic-bezier(0.4, 0, 0.2, 1), padding 0.4s ease, opacity 0.3s ease;
      color: var(--text-light);
    }

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

    .page-topbookmaker__faq-answer p {
      margin: 0 0 10px 0;
      font-size: 1em;
      color: var(--text-light);
    }

    .page-topbookmaker__faq-answer p:last-child {
      margin-bottom: 0;
    }

    /* Responsive Design */
    @media (max-width: 1024px) {
      .page-topbookmaker__hero-title {
        font-size: 2.8em;
      }
      .page-topbookmaker__hero-description {
        font-size: 1.2em;
      }
      .page-topbookmaker__heading {
        font-size: 2em;
      }
      .page-topbookmaker__subheading {
        font-size: 1.6em;
      }
    }

    @media (max-width: 768px) {
      .page-topbookmaker__hero-section {
        padding-top: 100px !important; /* Adjusted for mobile fixed header */
        padding-left: 15px;
        padding-right: 15px;
      }
      .page-topbookmaker__hero-title {
        font-size: 2em;
        margin-bottom: 15px;
      }
      .page-topbookmaker__hero-description {
        font-size: 1em;
        margin-bottom: 25px;
      }
      .page-topbookmaker__button {
        padding: 10px 20px;
        font-size: 1em;
      }
      .page-topbookmaker__section {
        padding: 30px 15px;
      }
      .page-topbookmaker__heading {
        font-size: 1.8em;
        margin-bottom: 25px;
      }
      .page-topbookmaker__subheading {
        font-size: 1.4em;
        margin-bottom: 15px;
      }
      .page-topbookmaker__paragraph {
        font-size: 1em;
      }
      .page-topbookmaker__list-item {
        padding: 12px 15px;
        font-size: 0.95em;
      }
      .page-topbookmaker__floating-login-button {
        padding: 12px 20px;
        font-size: 1em;
        bottom: 15px;
      }
      .page-topbookmaker__bookmakers-grid,
      .page-topbookmaker__criteria-grid,
      .page-topbookmaker__games-grid,
      .page-topbookmaker__providers-grid,
      .page-topbookmaker__payment-grid {
        grid-template-columns: 1fr;
        gap: 20px;
      }
      .page-topbookmaker__faq-question {
        padding: 15px 20px;
      }
      .page-topbookmaker__faq-question h3 {
        font-size: 1.1em;
      }
      .page-topbookmaker__faq-answer {
        padding: 0 20px;
      }
      .page-topbookmaker__faq-item.active .page-topbookmaker__faq-answer {
        padding: 15px 20px !important;
      }
      /* Image responsiveness */
      .page-topbookmaker__hero-image,
      .page-topbookmaker__bookmaker-logo,
      .page-topbookmaker__criterion-icon,
      .page-topbookmaker__game-image,
      .page-topbookmaker__provider-logo,
      .page-topbookmaker__payment-logo {
        max-width: 100% !important;
        height: auto !important;
      }
      .page-topbookmaker__hero-image-wrapper,
      .page-topbookmaker__bookmaker-logo-wrapper,
      .page-topbookmaker__criterion-icon-wrapper,
      .page-topbookmaker__game-image-wrapper,
      .page-topbookmaker__provider-logo-wrapper,
      .page-topbookmaker__payment-logo-wrapper {
        width: 100% !important;
        max-width: 100% !important;
        overflow: hidden !important;
        box-sizing: border-box !important;
      }
    }

    @media (max-width: 480px) {
      .page-topbookmaker__hero-title {
        font-size: 1.8em;
      }
      .page-topbookmaker__hero-description {
        font-size: 0.9em;
      }
      .page-topbookmaker__heading {
        font-size: 1.6em;
      }
      .page-topbookmaker__subheading {
        font-size: 1.2em;
      }
      .page-topbookmaker__floating-login-button {
        font-size: 0.9em;
        padding: 10px 15px;
      }
      .page-topbookmaker__bookmaker-card,
      .page-topbookmaker__criterion-card,
      .page-topbookmaker__game-card {
        padding: 15px;
      }
      .page-topbookmaker__faq-question h3 {
        font-size: 1em;
      }
    }