:root {
      --primary-color: #e44d26; /* A vibrant orange-red for betting */
      --secondary-color: #333;
      --accent-color: #f7b32b; /* Gold/yellow for highlights */
      --background-dark: #1a1a1a;
      --background-light: #2c2c2c;
      --text-color-light: #f0f0f0;
      --text-color-dark: #ccc;
      --border-color: #444;
      --button-bg-hover: #ff6a00;
      --button-text-color: #fff;
    }

    .page-c54dangnhap {
      font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
      color: var(--text-color-light);
      background-color: var(--background-dark);
      line-height: 1.6;
      box-sizing: border-box;
    }

    .page-c54dangnhap *,
    .page-c54dangnhap *::before,
    .page-c54dangnhap *::after {
      box-sizing: border-box;
    }

    .page-c54dangnhap__container {
      max-width: 1200px;
      margin: 0 auto;
      padding: 20px;
    }

    .page-c54dangnhap__hero-section {
      position: relative;
      background: linear-gradient(rgba(0, 0, 0, 0.7), rgba(0, 0, 0, 0.7)), var(--background-dark);
      background-size: cover;
      background-position: center;
      color: var(--text-color-light);
      padding: 100px 20px;
      text-align: center;
      display: flex;
      flex-direction: column;
      justify-content: center;
      align-items: center;
      min-height: 500px;
      padding-top: var(--header-offset, 120px); /* Ensure content is below fixed header */
      overflow: hidden;
    }

    .page-c54dangnhap__hero-image {
      position: absolute;
      top: 0;
      left: 0;
      width: 100%;
      height: 100%;
      object-fit: cover;
      z-index: -1;
      opacity: 0.4;
    }

    .page-c54dangnhap__hero-content {
      position: relative;
      z-index: 1;
      max-width: 800px;
    }

    .page-c54dangnhap__hero-title {
      font-size: 3.5em;
      margin-bottom: 20px;
      color: var(--primary-color);
      text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.5);
    }

    .page-c54dangnhap__hero-description {
      font-size: 1.2em;
      margin-bottom: 30px;
      color: var(--text-color-light);
    }

    .page-c54dangnhap__button {
      display: inline-block;
      background-color: var(--primary-color);
      color: var(--button-text-color);
      padding: 15px 30px;
      border-radius: 5px;
      font-size: 1.1em;
      font-weight: bold;
      text-decoration: none;
      transition: background-color 0.3s ease, transform 0.2s ease;
      border: none;
      cursor: pointer;
    }

    .page-c54dangnhap__button:hover {
      background-color: var(--button-bg-hover);
      transform: translateY(-2px);
    }

    .page-c54dangnhap__section {
      padding: 60px 20px;
      background-color: var(--background-light);
      margin-bottom: 20px;
      border-radius: 8px;
    }

    .page-c54dangnhap__section--dark {
      background-color: var(--background-dark);
    }

    .page-c54dangnhap__section-title {
      font-size: 2.5em;
      color: var(--primary-color);
      text-align: center;
      margin-bottom: 40px;
      position: relative;
      padding-bottom: 15px;
    }

    .page-c54dangnhap__section-title::after {
      content: '';
      position: absolute;
      left: 50%;
      bottom: 0;
      transform: translateX(-50%);
      width: 80px;
      height: 4px;
      background-color: var(--accent-color);
      border-radius: 2px;
    }

    .page-c54dangnhap__text-center {
      text-align: center;
    }

    .page-c54dangnhap__grid {
      display: grid;
      grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
      gap: 30px;
      margin-top: 30px;
    }

    .page-c54dangnhap__card {
      background-color: var(--background-dark);
      border: 1px solid var(--border-color);
      border-radius: 8px;
      padding: 30px;
      text-align: center;
      box-shadow: 0 4px 15px rgba(0, 0, 0, 0.3);
      transition: transform 0.3s ease, box-shadow 0.3s ease;
      display: flex;
      flex-direction: column;
      align-items: center;
      justify-content: flex-start;
      height: 100%; /* Ensure cards have equal height */
    }

    .page-c54dangnhap__card:hover {
      transform: translateY(-5px);
      box-shadow: 0 8px 20px rgba(0, 0, 0, 0.4);
    }

    .page-c54dangnhap__card-image {
      width: 100%;
      max-width: 400px;
      height: auto;
      border-radius: 8px;
      margin-bottom: 20px;
      object-fit: cover;
      min-height: 200px; /* Ensure images are not too small */
    }

    .page-c54dangnhap__card-title {
      font-size: 1.5em;
      color: var(--accent-color);
      margin-bottom: 15px;
    }

    .page-c54dangnhap__card-description {
      color: var(--text-color-dark);
      flex-grow: 1; /* Allow description to take up available space */
    }

    .page-c54dangnhap__step-list {
      display: flex;
      flex-direction: column;
      gap: 25px;
      list-style: none;
      padding: 0;
      margin: 0;
    }

    .page-c54dangnhap__step-item {
      background-color: var(--background-dark);
      border: 1px solid var(--border-color);
      border-radius: 8px;
      padding: 25px;
      display: flex;
      align-items: flex-start;
      gap: 20px;
      box-shadow: 0 2px 10px rgba(0, 0, 0, 0.2);
    }

    .page-c54dangnhap__step-number {
      font-size: 2.5em;
      font-weight: bold;
      color: var(--primary-color);
      flex-shrink: 0;
      line-height: 1;
    }

    .page-c54dangnhap__step-content h3 {
      font-size: 1.4em;
      color: var(--accent-color);
      margin-top: 0;
      margin-bottom: 10px;
    }

    .page-c54dangnhap__step-content p {
      color: var(--text-color-dark);
    }

    .page-c54dangnhap__game-gallery {
      display: grid;
      grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
      gap: 25px;
      margin-top: 30px;
    }

    .page-c54dangnhap__game-card {
      background-color: var(--background-dark);
      border: 1px solid var(--border-color);
      border-radius: 8px;
      overflow: hidden;
      box-shadow: 0 4px 15px rgba(0, 0, 0, 0.3);
      transition: transform 0.3s ease, box-shadow 0.3s ease;
    }

    .page-c54dangnhap__game-card:hover {
      transform: translateY(-5px);
      box-shadow: 0 8px 20px rgba(0, 0, 0, 0.4);
    }

    .page-c54dangnhap__game-image {
      width: 100%;
      height: 200px;
      object-fit: cover;
      display: block;
      min-height: 200px; /* Ensure images are not too small */
    }

    .page-c54dangnhap__game-info {
      padding: 20px;
      text-align: center;
    }

    .page-c54dangnhap__game-title {
      font-size: 1.3em;
      color: var(--accent-color);
      margin-bottom: 10px;
    }

    .page-c54dangnhap__game-provider {
      font-size: 0.9em;
      color: var(--text-color-dark);
    }

    .page-c54dangnhap__faq-section {
      padding: 60px 20px;
      background-color: var(--background-light);
      margin-bottom: 20px;
      border-radius: 8px;
    }

    .page-c54dangnhap__faq-list {
      list-style: none;
      padding: 0;
      margin: 0;
      max-width: 900px;
      margin: 0 auto;
    }

    .page-c54dangnhap__faq-item {
      background-color: var(--background-dark);
      border: 1px solid var(--border-color);
      border-radius: 8px;
      margin-bottom: 15px;
      overflow: hidden;
      box-shadow: 0 2px 10px rgba(0, 0, 0, 0.2);
    }

    .page-c54dangnhap__faq-question {
      display: flex;
      justify-content: space-between;
      align-items: center;
      padding: 20px 25px;
      cursor: pointer;
      user-select: none;
      background-color: var(--background-dark);
      transition: background-color 0.3s ease;
    }

    .page-c54dangnhap__faq-question:hover {
      background-color: #3a3a3a;
    }

    .page-c54dangnhap__faq-question h3 {
      font-size: 1.2em;
      color: var(--text-color-light);
      margin: 0;
      flex-grow: 1;
      text-align: left;
      pointer-events: none; /* Prevent h3 from blocking click on parent div */
    }

    .page-c54dangnhap__faq-toggle {
      font-size: 1.8em;
      font-weight: bold;
      color: var(--primary-color);
      margin-left: 15px;
      transition: transform 0.3s ease;
      pointer-events: none; /* Prevent toggle icon from blocking click on parent div */
    }

    .page-c54dangnhap__faq-item.active .page-c54dangnhap__faq-toggle {
      transform: rotate(45deg); /* Change + to X or similar */
    }

    .page-c54dangnhap__faq-answer {
      max-height: 0;
      overflow: hidden;
      padding: 0 25px;
      color: var(--text-color-dark);
      transition: max-height 0.4s cubic-bezier(0.4, 0, 0.2, 1), padding 0.4s ease, opacity 0.4s ease;
      opacity: 0;
    }

    .page-c54dangnhap__faq-item.active .page-c54dangnhap__faq-answer {
      max-height: 2000px !important; /* Sufficiently large */
      padding: 20px 25px !important;
      opacity: 1;
    }

    /* Floating buttons for mobile */
    .page-c54dangnhap__floating-buttons {
      position: fixed;
      bottom: 20px;
      left: 50%;
      transform: translateX(-50%);
      display: flex;
      gap: 15px;
      z-index: 1000;
    }

    .page-c54dangnhap__floating-button {
      background-color: var(--primary-color);
      color: var(--button-text-color);
      padding: 12px 25px;
      border-radius: 50px;
      font-size: 1em;
      font-weight: bold;
      text-decoration: none;
      transition: background-color 0.3s ease, transform 0.2s ease;
      box-shadow: 0 4px 10px rgba(0, 0, 0, 0.4);
      border: none;
      cursor: pointer;
      white-space: nowrap; /* Prevent text wrapping */
    }

    .page-c54dangnhap__floating-button:hover {
      background-color: var(--button-bg-hover);
      transform: translateY(-2px);
    }

    /* Responsive Design */
    @media (max-width: 1024px) {
      .page-c54dangnhap__hero-title {
        font-size: 3em;
      }
      .page-c54dangnhap__section-title {
        font-size: 2em;
      }
      .page-c54dangnhap__grid {
        grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
      }
      .page-c54dangnhap__game-gallery {
        grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
      }
    }

    @media (max-width: 768px) {
      .page-c54dangnhap__hero-section {
        padding: 80px 15px;
        min-height: 400px;
      }
      .page-c54dangnhap__hero-title {
        font-size: 2.5em;
      }
      .page-c54dangnhap__hero-description {
        font-size: 1em;
      }
      .page-c54dangnhap__button {
        padding: 12px 25px;
        font-size: 1em;
      }
      .page-c54dangnhap__section {
        padding: 40px 15px;
      }
      .page-c54dangnhap__section-title {
        font-size: 1.8em;
      }
      .page-c54dangnhap__grid {
        grid-template-columns: 1fr;
      }
      .page-c54dangnhap__step-item {
        flex-direction: column;
        text-align: center;
        gap: 10px;
        padding: 20px;
      }
      .page-c54dangnhap__step-number {
        font-size: 2em;
        margin-bottom: 10px;
      }
      .page-c54dangnhap__step-content h3 {
        font-size: 1.2em;
      }
      .page-c54dangnhap__game-gallery {
        grid-template-columns: 1fr;
      }
      .page-c54dangnhap__faq-question {
        padding: 15px 20px;
      }
      .page-c54dangnhap__faq-question h3 {
        font-size: 1.1em;
      }
      .page-c54dangnhap__faq-answer {
        padding: 0 20px;
      }
      .page-c54dangnhap__faq-item.active .page-c54dangnhap__faq-answer {
        padding: 15px 20px !important;
      }

      /* List items mobile responsiveness */
      .page-c54dangnhap__grid .page-c54dangnhap__card,
      .page-c54dangnhap__step-list .page-c54dangnhap__step-item,
      .page-c54dangnhap__game-gallery .page-c54dangnhap__game-card,
      .page-c54dangnhap__faq-list .page-c54dangnhap__faq-item {
        width: 100% !important;
        max-width: 100% !important;
        box-sizing: border-box !important;
        margin-left: 0 !important;
        margin-right: 0 !important;
        word-wrap: break-word !important;
        overflow-wrap: break-word !important;
        word-break: break-word !important;
      }

      .page-c54dangnhap__grid,
      .page-c54dangnhap__step-list,
      .page-c54dangnhap__game-gallery,
      .page-c54dangnhap__faq-list {
        width: 100% !important;
        max-width: 100% !important;
        box-sizing: border-box !important;
        padding: 0 !important;
        margin-left: 0 !important;
        margin-right: 0 !important;
      }

      .page-c54dangnhap__container {
        padding: 0 15px;
      }
    }

    @media (max-width: 480px) {
      .page-c54dangnhap__hero-title {
        font-size: 2em;
      }
      .page-c54dangnhap__floating-buttons {
        flex-direction: column;
        gap: 10px;
        bottom: 15px;
      }
      .page-c54dangnhap__floating-button {
        width: 180px; /* Adjust for smaller screens */
        text-align: center;
      }
    }