/* CSS cho trang 8day */
    :root {
      --page-8day-primary-bg: #1a1a2e;
      --page-8day-secondary-bg: #0f0f1c;
      --page-8day-text-color: #f0f0f0;
      --page-8day-accent-color: #e94560; /* Màu đỏ hồng */
      --page-8day-button-hover: #ff6b81;
      --page-8day-border-color: #3e3e5c;
      --page-8day-card-bg: #2a2a4a;
      --page-8day-shadow: rgba(0, 0, 0, 0.3);
      --page-8day-header-height: 160px; /* An toàn cho banner */
    }

    .page-8day {
      font-family: 'Arial', sans-serif;
      background-color: var(--page-8day-primary-bg);
      color: var(--page-8day-text-color);
      line-height: 1.6;
      overflow-x: hidden;
    }

    .page-8day-container {
      max-width: 1200px;
      margin: 0 auto;
      padding: 0 15px;
    }

    /* Hero Section */
    .page-8day-hero {
      position: relative;
      width: 100%;
      min-height: 400px; /* Chiều cao tối thiểu cho banner */
      background-color: var(--page-8day-secondary-bg);
      display: flex;
      flex-direction: column;
      justify-content: center;
      align-items: center;
      text-align: center;
      padding-top: var(--page-8day-header-height); /* Vùng an toàn cho banner */
    }

    .page-8day-hero-image {
      position: absolute;
      top: 0;
      left: 0;
      width: 100%;
      height: 100%;
      object-fit: cover;
      z-index: 1;
    }

    .page-8day-hero-content {
      position: relative;
      z-index: 2;
      padding: 20px;
      background: linear-gradient(to top, rgba(26, 26, 46, 0.8), rgba(26, 26, 46, 0.5));
      border-radius: 10px;
      margin-top: auto; /* Đẩy nội dung xuống dưới banner */
      margin-bottom: 20px;
    }

    .page-8day-hero h1 {
      font-size: 2.5em;
      color: var(--page-8day-accent-color);
      margin-bottom: 15px;
      text-shadow: 2px 2px 4px var(--page-8day-shadow);
    }

    .page-8day-hero p {
      font-size: 1.1em;
      margin-bottom: 25px;
      max-width: 600px;
      color: var(--page-8day-text-color);
    }

    .page-8day-btn {
      display: inline-block;
      background-color: var(--page-8day-accent-color);
      color: var(--page-8day-text-color);
      padding: 12px 30px;
      border-radius: 50px;
      text-decoration: none;
      font-weight: bold;
      transition: background-color 0.3s ease, transform 0.2s ease;
      box-shadow: 0 4px 10px var(--page-8day-shadow);
      border: none;
      cursor: pointer;
    }

    .page-8day-btn:hover {
      background-color: var(--page-8day-button-hover);
      transform: translateY(-2px);
    }

    /* Floating Login Button */
    .page-8day-floating-login {
      position: fixed;
      bottom: 20px;
      right: 20px;
      z-index: 1000;
      background-color: var(--page-8day-accent-color);
      color: var(--page-8day-text-color);
      padding: 10px 20px;
      border-radius: 30px;
      text-decoration: none;
      font-weight: bold;
      box-shadow: 0 5px 15px var(--page-8day-shadow);
      display: flex;
      align-items: center;
      gap: 10px;
      animation: page-8day-pulse 1.5s infinite;
      transition: background-color 0.3s ease;
    }

    .page-8day-floating-login:hover {
      background-color: var(--page-8day-button-hover);
    }

    @keyframes page-8day-pulse {
      0% { transform: scale(1); }
      50% { transform: scale(1.05); }
      100% { transform: scale(1); }
    }

    /* Sections */
    .page-8day-section {
      padding: 60px 0;
      text-align: center;
    }

    .page-8day-section-title {
      font-size: 2em;
      color: var(--page-8day-accent-color);
      margin-bottom: 40px;
      position: relative;
      display: inline-block;
    }

    .page-8day-section-title::after {
      content: '';
      position: absolute;
      left: 50%;
      bottom: -10px;
      transform: translateX(-50%);
      width: 60px;
      height: 3px;
      background-color: var(--page-8day-accent-color);
      border-radius: 2px;
    }

    /* Game Categories */
    .page-8day-game-categories {
      background-color: var(--page-8day-secondary-bg);
    }

    .page-8day-game-grid {
      display: grid;
      grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
      gap: 20px;
      margin-top: 30px;
    }

    .page-8day-game-card {
      background-color: var(--page-8day-card-bg);
      border-radius: 10px;
      overflow: hidden;
      box-shadow: 0 5px 15px var(--page-8day-shadow);
      transition: transform 0.3s ease, box-shadow 0.3s ease;
      text-decoration: none;
      color: var(--page-8day-text-color);
      display: flex;
      flex-direction: column;
      align-items: center;
      padding: 15px;
    }

    .page-8day-game-card:hover {
      transform: translateY(-5px);
      box-shadow: 0 8px 20px var(--page-8day-shadow);
    }

    .page-8day-game-card img {
      width: 100%;
      max-width: 120px;
      height: auto;
      border-radius: 8px;
      margin-bottom: 10px;
    }

    .page-8day-game-card h3 {
      font-size: 1.1em;
      margin: 0;
      color: var(--page-8day-text-color);
      text-align: center;
    }

    /* Promotions */
    .page-8day-promotions {
      background-color: var(--page-8day-primary-bg);
    }

    .page-8day-promo-grid {
      display: grid;
      grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
      gap: 30px;
    }

    .page-8day-promo-card {
      background-color: var(--page-8day-card-bg);
      border-radius: 10px;
      overflow: hidden;
      box-shadow: 0 5px 15px var(--page-8day-shadow);
      text-align: left;
      transition: transform 0.3s ease;
    }

    .page-8day-promo-card:hover {
      transform: translateY(-5px);
    }

    .page-8day-promo-card img {
      width: 100%;
      height: 200px;
      object-fit: cover;
    }

    .page-8day-promo-content {
      padding: 20px;
    }

    .page-8day-promo-content h3 {
      color: var(--page-8day-accent-color);
      margin-top: 0;
      font-size: 1.3em;
    }

    .page-8day-promo-content p {
      font-size: 0.95em;
      color: var(--page-8day-text-color);
      margin-bottom: 15px;
    }

    /* Why Choose Us */
    .page-8day-why-choose-us {
      background-color: var(--page-8day-secondary-bg);
    }

    .page-8day-feature-grid {
      display: grid;
      grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
      gap: 30px;
      margin-top: 30px;
    }

    .page-8day-feature-item {
      background-color: var(--page-8day-card-bg);
      padding: 25px;
      border-radius: 10px;
      box-shadow: 0 5px 15px var(--page-8day-shadow);
      transition: transform 0.3s ease;
    }

    .page-8day-feature-item:hover {
      transform: scale(1.02);
    }

    .page-8day-feature-item h3 {
      color: var(--page-8day-accent-color);
      font-size: 1.2em;
      margin-bottom: 10px;
    }

    .page-8day-feature-item p {
      font-size: 0.95em;
      color: var(--page-8day-text-color);
    }

    /* Game Providers */
    .page-8day-providers {
      background-color: var(--page-8day-primary-bg);
      padding-bottom: 80px;
    }

    .page-8day-provider-grid {
      display: grid;
      grid-template-columns: repeat(auto-fit, minmax(80px, 1fr));
      gap: 20px;
      margin-top: 30px;
      align-items: center;
      justify-items: center;
    }

    .page-8day-provider-logo {
      width: 100%;
      max-width: 100px;
      height: auto;
      object-fit: contain;
      filter: grayscale(80%) brightness(1.2);
      transition: filter 0.3s ease;
    }

    .page-8day-provider-logo:hover {
      filter: grayscale(0%) brightness(1);
    }

    /* Responsive Adjustments */
    @media (max-width: 768px) {
      .page-8day-hero h1 {
        font-size: 2em;
      }

      .page-8day-hero p {
        font-size: 1em;
      }

      .page-8day-section-title {
        font-size: 1.8em;
      }

      .page-8day-game-grid,
      .page-8day-promo-grid,
      .page-8day-feature-grid {
        grid-template-columns: 1fr;
      }

      .page-8day-floating-login {
        bottom: 15px;
        right: 15px;
        padding: 8px 15px;
        font-size: 0.9em;
      }

      .page-8day-hero {
        min-height: 350px;
        padding-top: 120px;
      }
    }

    @media (max-width: 480px) {
      .page-8day-hero h1 {
        font-size: 1.8em;
      }

      .page-8day-hero p {
        font-size: 0.9em;
      }

      .page-8day-section-title {
        font-size: 1.5em;
      }

      .page-8day-game-grid {
        grid-template-columns: repeat(auto-fit, minmax(120px, 1fr));
      }

      .page-8day-provider-grid {
        grid-template-columns: repeat(auto-fit, minmax(60px, 1fr));
      }

      .page-8day-hero {
        min-height: 300px;
        padding-top: 100px;
      }
    }