/* === BASE STYLES === */:root {
      --primary: #1acb39;
      --primary-dark: #17b834;
      --secondary: #6C3AFF;
      --secondary-light: #8B5EFF;
      --accent: #00FFD1;
      --dark: #191c28;
      --dark-blue: #17162b;
      --text: #E8E9F3;
      --text-muted: #A0A3BD;
      --gradient-primary: linear-gradient(135deg, #1acb39 0%, #17b834 100%);
      --gradient-secondary: linear-gradient(135deg, #6C3AFF 0%, #8B5EFF 100%);
      --gradient-accent: linear-gradient(135deg, #00FFD1 0%, #00D9B5 100%);
      --gradient-dark: linear-gradient(180deg, #191c28 0%, #17162b 100%);
      --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.15);
      --shadow-md: 0 4px 20px rgba(0, 0, 0, 0.25);
      --shadow-lg: 0 8px 32px rgba(0, 0, 0, 0.35);
      --shadow-glow: 0 0 30px rgba(26, 203, 57, 0.3);
      --border-radius: 16px;
      --transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    }

    * {
      margin: 0;
      padding: 0;
      box-sizing: border-box;
    }

    html, body {
      overflow-x: hidden;
      max-width: 100vw;
      scroll-behavior: smooth;
    }

    body {
      font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
      background: var(--dark);
      color: var(--text);
      line-height: 1.7;
      font-size: 16px;
    }

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

    h1, h2, h3, h4 {
      font-weight: 700;
      line-height: 1.2;
      margin-bottom: 1.5rem;
      color: #fff;
    }

    h1 {
      font-size: clamp(32px, 6vw, 64px);
      color: var(--accent);
    }

    h2 {
      font-size: clamp(28px, 5vw, 48px);
      position: relative;
      padding-bottom: 1rem;
    }

    h2::after {
      content: '';
      position: absolute;
      bottom: 0;
      left: 0;
      width: 80px;
      height: 4px;
      background: var(--gradient-primary);
      border-radius: 2px;
    }

    h3 {
      font-size: clamp(22px, 4vw, 32px);
      color: var(--accent);
    }

    h4 {
      font-size: clamp(18px, 3vw, 24px);
    }

    p {
      margin-bottom: 1rem;
      color: var(--text);
    }

    a {
      color: var(--accent);
      text-decoration: none;
      transition: var(--transition);
    }

    a:hover {
      color: var(--primary);
    }

    .btn {
      padding: 16px 32px;
      font-size: 18px;
      font-weight: 700;
      border: none;
      border-radius: var(--border-radius);
      cursor: pointer;
      transition: var(--transition);
      text-transform: uppercase;
      letter-spacing: 1px;
      position: relative;
      overflow: hidden;
      display: inline-block;
    }

    .btn::before {
      content: '';
      position: absolute;
      top: 0;
      left: -100%;
      width: 100%;
      height: 100%;
      background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.2), transparent);
      transition: left 0.6s;
    }

    .btn:hover::before {
      left: 100%;
    }

    .btn-primary {
      background: var(--gradient-primary);
      border: none;
      padding: 0.75rem 2rem;
      font-weight: 600;
      text-transform: uppercase;
      letter-spacing: 0.5px;
      box-shadow: var(--shadow-md);
      transition: var(--transition);
      color: #fff;
      border-radius: 0.375rem;
    }

    .btn-primary:hover {
      transform: translateY(-2px);
      box-shadow: var(--shadow-glow);
      color: #fff;
    }

    .card {
      background: var(--dark-blue);
      border-radius: var(--border-radius);
      padding: 2rem;
      box-shadow: var(--shadow-md);
      transition: var(--transition);
      border: 1px solid rgba(255, 255, 255, 0.1);
      overflow: hidden;
    }

    .card:hover {
      transform: translateY(-8px);
      box-shadow: var(--shadow-lg);
      border-color: var(--primary);
    }

    .content-image {
      max-width: 100%;
      margin: 1.5rem auto;
      text-align: center;
    }

    .content-image img {
      max-width: 100%;
      height: auto;
      max-height: 400px;
      object-fit: contain;
      border-radius: var(--border-radius);
      box-shadow: var(--shadow-md);
    }

    .content-image.portrait img {
      max-height: 250px;
      max-width: 100%;
      width: 100%;
      object-fit: contain;
    }

    .content-image.wide img {
      max-height: 500px;
      max-width: 100%;
    }

    .content-image figcaption {
      margin-top: 0.5rem;
      font-size: 0.875rem;
      color: var(--text);
      text-align: center;
      font-weight: 600;
    }

    .table-responsive {
      overflow-x: auto;
      margin: 1.5rem 0;
      border-radius: var(--border-radius);
      box-shadow: var(--shadow-md);
    }

    table {
      width: 100%;
      border-collapse: collapse;
      background: var(--dark-blue);
      color: var(--text);
    }

    table th,
    table td {
      padding: 1rem;
      text-align: left;
      border-bottom: 1px solid rgba(255, 255, 255, 0.1);
    }

    table th {
      background: var(--gradient-primary);
      color: #fff;
      font-weight: 700;
      text-transform: uppercase;
      letter-spacing: 1px;
    }

    /* === LAYOUT STYLES === */
    .header {
      position: sticky;
      top: 0;
      z-index: 1000;
      background: rgba(10, 14, 39, 0.95);
      backdrop-filter: blur(10px);
      border-bottom: 1px solid rgba(255, 51, 102, 0.2);
      padding: 1rem 0;
      box-shadow: var(--shadow-md);
    }

    .header-content {
      display: flex;
      justify-content: space-between;
      align-items: center;
      gap: 2rem;
    }

    .logo a {
      display: inline-block;
      text-decoration: none;
    }

    .logo img {
      max-height: 50px;
      width: auto;
    }

    .nav {
      display: flex;
      align-items: center;
      gap: 1rem;
    }

    .nav-toggle {
      display: none;
      background: none;
      border: none;
      cursor: pointer;
      padding: 0.5rem;
      z-index: 1001;
    }

    .hamburger {
      display: block;
      width: 28px;
      height: 2px;
      background: var(--accent);
      position: relative;
      transition: var(--transition);
    }

    .hamburger::before,
    .hamburger::after {
      content: '';
      position: absolute;
      width: 28px;
      height: 2px;
      background: var(--accent);
      transition: var(--transition);
    }

    .hamburger::before {
      top: -8px;
    }

    .hamburger::after {
      bottom: -8px;
    }

    .nav-toggle[aria-expanded="true"] .hamburger {
      background: transparent;
    }

    .nav-toggle[aria-expanded="true"] .hamburger::before {
      transform: rotate(45deg);
      top: 0;
    }

    .nav-toggle[aria-expanded="true"] .hamburger::after {
      transform: rotate(-45deg);
      bottom: 0;
    }

    .nav-list {
      display: flex;
      list-style: none;
      gap: 2rem;
      margin: 0;
      padding: 0;
      align-items: center;
    }

    .nav-link {
      color: var(--text);
      font-weight: 600;
      font-size: 16px;
      transition: var(--transition);
      position: relative;
    }

    .nav-link::after {
      content: '';
      position: absolute;
      bottom: -5px;
      left: 0;
      width: 0;
      height: 2px;
      background: var(--accent);
      transition: var(--transition);
    }

    .nav-link:hover {
      color: var(--accent);
    }

    .nav-link:hover::after {
      width: 100%;
    }

    .cta-button {
      background: var(--gradient-primary);
      border: none;
      padding: 0.75rem 2rem;
      font-weight: 600;
      text-transform: uppercase;
      letter-spacing: 0.5px;
      box-shadow: var(--shadow-md);
      transition: var(--transition);
      color: #fff;
      text-decoration: none;
      display: inline-block;
      border-radius: 0.375rem;
    }

    .cta-button:hover {
      transform: translateY(-2px);
      box-shadow: var(--shadow-glow);
      color: #fff;
    }

    .header .cta-button {
      white-space: nowrap;
      padding: 12px 24px;
      font-size: 16px;
      max-width: 200px;
      text-overflow: ellipsis;
      overflow: hidden;
    }

    .footer {
      background: var(--dark-blue);
      padding: 4rem 0 2rem;
      border-top: 1px solid rgba(255, 51, 102, 0.2);
      margin-top: 6rem;
    }

    .footer-content {
      display: grid;
      grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
      gap: 3rem;
      margin-bottom: 3rem;
    }

    .footer-section h3,
    .footer-section h4 {
      color: var(--accent);
      margin-bottom: 1.5rem;
      font-size: 20px;
    }

    .footer-links {
      list-style: none;
      padding: 0;
    }

    .footer-links li {
      margin-bottom: 0.75rem;
    }

    .footer-links a {
      color: var(--text);
      transition: var(--transition);
    }

    .footer-links a:hover {
      color: var(--accent);
      padding-left: 5px;
    }

    .footer-bottom {
      text-align: center;
      padding-top: 2rem;
      border-top: 1px solid rgba(255, 255, 255, 0.1);
      color: var(--text-muted);
      font-size: 14px;
    }

    @media (max-width: 767px) {
      .header-content {
        flex-wrap: wrap;
      }

      .nav-toggle {
        display: block;
        order: 3;
      }

      .logo {
        order: 1;
      }

      .nav {
        order: 2;
        position: fixed;
        top: 0;
        right: -100%;
        width: 80%;
        max-width: 300px;
        height: 100vh;
        background: var(--dark-blue);
        flex-direction: column;
        align-items: flex-start;
        padding: 6rem 2rem 2rem;
        box-shadow: var(--shadow-lg);
        transition: right 0.4s ease;
      }

      .nav.active {
        right: 0;
      }

      .nav-list {
        flex-direction: column;
        align-items: flex-start;
        width: 100%;
        gap: 1.5rem;
      }

      .header .cta-button {
        order: 4;
        width: 100%;
        max-width: 100%;
        margin-top: 1rem;
        text-align: center;
      }

      .footer-content {
        grid-template-columns: 1fr;
        gap: 2rem;
      }
    }

@media (max-width: 767px) {
      .header-content {
        flex-wrap: wrap;
      }

      .nav-toggle {
        display: block;
        order: 3;
      }

      .logo {
        order: 1;
      }

      .nav {
        order: 2;
        position: fixed;
        top: 0;
        right: -100%;
        width: 80%;
        max-width: 300px;
        height: 100vh;
        background: var(--dark-blue);
        flex-direction: column;
        align-items: flex-start;
        padding: 6rem 2rem 2rem;
        box-shadow: var(--shadow-lg);
        transition: right 0.4s ease;
      }

      .nav.active {
        right: 0;
      }

      .nav-list {
        flex-direction: column;
        align-items: flex-start;
        width: 100%;
        gap: 1.5rem;
      }

      .header .cta-button {
        order: 4;
        width: 100%;
        max-width: 100%;
        margin-top: 1rem;
        text-align: center;
      }

      .footer-content {
        grid-template-columns: 1fr;
        gap: 2rem;
      }
    }

@media (max-width: 767px) {
      .hero-section {
        padding: 4rem 0 3rem;
      }

      .hero-section::before,
      .hero-section::after {
        width: 300px;
        height: 300px;
      }

      .contents-list {
        grid-template-columns: 1fr;
      }

      .cards-grid-3,
      .cards-grid-4 {
        grid-template-columns: 1fr;
      }

      .timeline-item,
      .feature-block,
      .highlight-box {
        padding: 1.5rem;
      }

      .accordion-header {
        padding: 1rem 1.5rem;
        font-size: 18px;
      }

      .accordion-body {
        padding: 0 1.5rem;
      }

      .accordion-item.active .accordion-body {
        padding: 0 1.5rem 1rem;
      }

      .card {
        padding: 1.5rem;
      }

      h2::after {
        width: 60px;
      }

      .registration,
      .mobile-app,
      .games,
      .advantages,
      .support,
      .security,
      .faq {
        padding: 3rem 0;
      }

      .cta-section {
        padding: 4rem 0;
      }
    }