:root {
      --primary-gradient: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
      --secondary-gradient: linear-gradient(135deg, #f093fb 0%, #f5576c 100%);
      --dark-gradient: linear-gradient(135deg, #1a1a2e 0%, #16213e 100%);
    }

    .navbar {
      background: white;
      backdrop-filter: blur(10px);
      transition: all 0.3s ease;
    }

    .navbar.scrolled {
      background: rgba(255, 255, 255, 0.95);
      box-shadow: 0 5px 20px rgba(0, 0, 0, 0.1);
    }

    .navbar-brand img {
      transition: transform 0.3s ease;
    }

    .navbar-brand img:hover {
      transform: scale(1.05);
    }

    .nav-link {
      font-weight: 500;
      color: #555;
      transition: all 0.3s ease;
      position: relative;
      padding: 10px 0;
    }

    .nav-link:hover {
      color: #667eea;
    }

    .nav-link::after {
      content: '';
      position: absolute;
      bottom: 0;
      left: 0;
      width: 0;
      height: 2px;
      background: var(--primary-gradient);
      transition: width 0.3s ease;
    }

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

    .btn-primary {
      background: var(--primary-gradient);
      border: none;
      padding: 10px 25px;
      border-radius: 50px;
      font-weight: 600;
      transition: all 0.3s ease;
      box-shadow: 0 5px 15px rgba(102, 126, 234, 0.3);
    }

    .btn-primary:hover {
      transform: translateY(-2px);
      box-shadow: 0 8px 20px rgba(102, 126, 234, 0.5);
    }

    .hero-section {
      background: var(--primary-gradient);
      color: white;
      padding: 40px 0;
      min-height: 20vh;
      display: flex;
      align-items: center;
      position: relative;
      overflow: hidden;
    }

    .hero-section::before {
      content: '';
      position: absolute;
      top: -50%;
      left: -50%;
      width: 200%;
      height: 200%;
      background: radial-gradient(circle, rgba(255,255,255,0.1) 0%, rgba(255,255,255,0) 70%);
      z-index: 0;
    }

    .hero-section .container {
      position: relative;
      z-index: 1;
    }

    .feature-tag {
      display: inline-block;
      background: rgba(255, 255, 255, 0.2);
      border-radius: 20px;
      padding: 8px 20px;
      margin: 5px;
      font-weight: 600;
      backdrop-filter: blur(10px);
      border: 1px solid rgba(255, 255, 255, 0.3);
      transition: all 0.3s ease;
    }

    .feature-tag:hover {
      background: rgba(255, 255, 255, 0.3);
      transform: translateY(-2px);
    }

    .main-title {
      font-family: 'Orbitron', sans-serif;
      font-size: 3.5rem;
      font-weight: 800;
      line-height: 1.3;
      margin-top: 2rem;
      text-shadow: 0 2px 10px rgba(0, 0, 0, 0.2);
      animation: fadeInUp 1s ease-out;
    }

    @keyframes fadeInUp {
      from {
        opacity: 0;
        transform: translateY(30px);
      }
      to {
        opacity: 1;
        transform: translateY(0);
      }
    }

    .btn-primary-custom {
      background: white;
      color: #667eea;
      font-weight: 700;
      padding: 15px 40px;
      border-radius: 50px;
      font-size: 1.2rem;
      transition: all 0.3s ease;
      box-shadow: 0 10px 30px rgba(0, 0, 0, 0.2);
      border: none;
      display: inline-flex;
      align-items: center;
      gap: 10px;
    }

    .btn-primary-custom:hover {
      transform: translateY(-3px);
      box-shadow: 0 15px 40px rgba(0, 0, 0, 0.3);
      color: #764ba2;
    }

    .section-install {
      padding: 100px 0;
      background: #f8f9fa;
    }

    .section-title {
      font-size: 2.5rem;
      font-weight: 700;
      color: #333;
      text-align: center;
      margin-bottom: 3rem;
      position: relative;
      display: inline-block;
    }

    .section-title::after {
      content: '';
      position: absolute;
      bottom: -10px;
      left: 50%;
      transform: translateX(-50%);
      width: 80px;
      height: 4px;
      background: var(--primary-gradient);
      border-radius: 2px;
    }

    .step-card {
      background: white;
      border-radius: 20px;
      padding: 30px;
      margin-bottom: 30px;
      box-shadow: 0 10px 30px rgba(0, 0, 0, 0.08);
      transition: all 0.3s ease;
      border: 2px solid transparent;
      height: 100%;
      display: flex;
      flex-direction: column;
    }

    .step-card:hover {
      transform: translateY(-5px);
      box-shadow: 0 15px 40px rgba(0, 0, 0, 0.12);
      border-color: rgba(102, 126, 234, 0.3);
    }

    .step-title {
      font-size: 1.5rem;
      font-weight: 700;
      color: #333;
      margin-bottom: 15px;
    }

    .step-content {
      color: #666;
      line-height: 1.8;
      flex-grow: 1;
    }

    .tg-bot-img {
      width: 100%;
      max-width: 300px;
      border-radius: 15px;
      box-shadow: 0 10px 30px rgba(0, 0, 0, 0.2);
      transition: all 0.3s ease;
    }

    .tg-bot-img:hover {
      transform: scale(1.05);
    }

    .download-links {
      display: flex;
      flex-wrap: wrap;
      gap: 20px;
      margin-top: 20px;
      justify-content: center;
    }

    .download-link {
      display: inline-block;
      width: 80px;
      height: 80px;
      border-radius: 15px;
      overflow: hidden;
      box-shadow: 0 5px 15px rgba(0, 0, 0, 0.15);
      transition: all 0.3s ease;
      position: relative;
      background: white;
    }

    .download-link:hover {
      transform: translateY(-5px);
      box-shadow: 0 10px 25px rgba(0, 0, 0, 0.25);
    }

    .download-link img {
      width: 100%;
      height: 100%;
      object-fit: cover;
      transition: transform 0.3s ease;
    }

    .download-link:hover img {
      transform: scale(1.1);
    }

    .btn-secondary-custom {
      display: inline-block;
      background: var(--primary-gradient);
      color: white;
      padding: 12px 30px;
      border-radius: 50px;
      font-weight: 600;
      font-size: 1.1rem;
      text-decoration: none;
      transition: all 0.3s ease;
      margin-top: 20px;
      box-shadow: 0 5px 20px rgba(102, 126, 234, 0.4);
      display: inline-flex;
      align-items: center;
      gap: 10px;
    }

    .btn-secondary-custom:hover {
      transform: translateY(-3px);
      box-shadow: 0 10px 30px rgba(102, 126, 234, 0.6);
    }

    .referral-section {
      background: var(--secondary-gradient);
      color: white;
      padding: 60px 0;
      border-radius: 20px;
      margin-top: 40px;
      text-align: center;
    }

    .referral-title {
      font-size: 2rem;
      font-weight: 700;
      margin-bottom: 15px;
    }

    .referral-text {
      font-size: 1.2rem;
      line-height: 1.8;
      margin-bottom: 0;
    }

    .referral-bonus {
      font-size: 1.8rem;
      font-weight: 800;
      color: #fff;
      text-shadow: 0 2px 10px rgba(0, 0, 0, 0.3);
    }

    .footer {
      background: var(--dark-gradient);
      color: rgba(255, 255, 255, 0.8);
      padding: 80px 0 30px;
    }

    .footer-logo {
      width: 80px;
      margin-bottom: 20px;
      transition: transform 0.3s ease;
    }

    .footer-logo:hover {
      transform: scale(1.1);
    }

    .footer-title {
      font-size: 1.3rem;
      font-weight: 700;
      color: white;
      margin-bottom: 25px;
      position: relative;
      padding-bottom: 10px;
    }

    .footer-title::after {
      content: '';
      position: absolute;
      bottom: 0;
      left: 0;
      width: 40px;
      height: 2px;
      background: var(--primary-gradient);
    }

    .footer-link {
      color: rgba(255, 255, 255, 0.7);
      text-decoration: none;
      display: block;
      margin-bottom: 12px;
      transition: all 0.3s ease;
      font-size: 0.95rem;
    }

    .footer-link:hover {
      color: white;
      transform: translateX(5px);
    }

    .footer-text {
      color: rgba(255, 255, 255, 0.6);
      line-height: 1.8;
      font-size: 0.95rem;
    }

    .social-links {
      display: flex;
      gap: 15px;
      margin-top: 20px;
    }

    .social-link {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      width: 40px;
      height: 40px;
      border-radius: 50%;
      background: rgba(255, 255, 255, 0.1);
      color: white;
      text-decoration: none;
      transition: all 0.3s ease;
      font-size: 1.2rem;
    }

    .social-link:hover {
      background: var(--primary-gradient);
      transform: translateY(-3px);
    }

    .footer-bottom {
      background: rgba(0, 0, 0, 0.2);
      padding: 20px 0;
      margin-top: 50px;
      text-align: center;
      border-top: 1px solid rgba(255, 255, 255, 0.1);
    }

    .copyright {
      color: rgba(255, 255, 255, 0.6);
      font-size: 0.9rem;
    }

    .footer-divider {
      height: 1px;
      background: rgba(255, 255, 255, 0.1);
      margin: 30px 0;
    }

    @keyframes float {
      0%, 100% {
        transform: translateY(0);
      }
      50% {
        transform: translateY(-10px);
      }
    }

    .floating {
      animation: float 3s ease-in-out infinite;
    }

    @media (max-width: 768px) {
      .main-title {
        font-size: 2rem;
      }

      .section-title {
        font-size: 2rem;
      }

      .step-number {
        font-size: 1.5rem;
      }

      .step-title {
        font-size: 1.2rem;
      }

      .download-link {
        width: 70px;
        height: 70px;
      }

      .referral-title {
        font-size: 1.5rem;
      }

      .referral-bonus {
        font-size: 1.4rem;
      }

      .footer-title {
        font-size: 1.1rem;
      }

      .hero-section {
        padding: 80px 0;
      }
    }
    
    .chat-message {
        margin-top: 0.5rem !important;
        margin-bottom: 0.5rem !important;
    }

    .message-content {
        padding: 0.6rem 0.8rem !important;
    }