* {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
            font-family: 'Arial', sans-serif;
        }
        
        body {
            background-color: #0a0a1a;
            color: #e0e0ff;
            min-height: 100vh;
            font-family: 'Orbitron', sans-serif;
        }
        
        /* Неоновая навигационная панель */
        .neon-navbar {
            display: flex;
            justify-content: space-between;
            align-items: center;
            padding: 15px 40px;
            background: rgba(10, 10, 30, 0.8);
            box-shadow: 0 0 25px rgba(0, 255, 255, 0.15);
            position: relative;
            border-bottom: 1px solid rgba(0, 255, 255, 0.2);
        }
        
        /* Логотип и название */
        .logo-container {
            display: flex;
            align-items: center;
            gap: 15px;
        }
        
        .logo-img {
            width: 40px;
            height: 40px;
            object-fit: contain;
            filter: drop-shadow(0 0 5px rgba(0, 255, 255, 0.7));
        }
        
        .logo-text {
            font-size: 24px;
            font-weight: bold;
            background: linear-gradient(90deg, #0ff, #f0f);
            -webkit-background-clip: text;
            background-clip: text;
            color: transparent;
            text-shadow: 0 0 10px rgba(0, 255, 255, 0.3);
            letter-spacing: 1px;
        }
        
        /* Меню навигации */
        .nav-menu {
            display: flex;
            gap: 25px;
        }
        
        .nav-item {
            position: relative;
            list-style: none;
        }
        
        .nav-link {
            color: #fff;
            text-decoration: none;
            font-size: 16px;
            font-weight: 500;
            padding: 8px 15px;
            transition: all 0.3s ease;
            position: relative;
            z-index: 1;
        }
        
        /* Эффекты при наведении */
        .nav-link::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            background: linear-gradient(45deg, rgba(0, 255, 255, 0.2), rgba(255, 0, 255, 0.2));
            z-index: -1;
            border-radius: 5px;
            opacity: 0;
            transition: opacity 0.3s;
        }
        
        .nav-link:hover {
            color: #0ff;
            text-shadow: 0 0 10px rgba(0, 255, 255, 0.7);
        }
        
        .nav-link:hover::before {
            opacity: 1;
        }
        
        /* Активный пункт меню */
        .nav-item.active .nav-link {
            color: #0ff;
            font-weight: bold;
        }
        
        .nav-item.active::after {
            content: '';
            position: absolute;
            bottom: -5px;
            left: 15px;
            right: 15px;
            height: 2px;
            background: #0ff;
            box-shadow: 0 0 10px #0ff;
            animation: neonPulse 1.5s infinite alternate;
        }
        
        /* Анимации */
        @keyframes neonPulse {
            from {
                opacity: 0.7;
                box-shadow: 0 0 5px #0ff;
            }
            to {
                opacity: 1;
                box-shadow: 0 0 20px #0ff;
            }
        }
        
        /* Эффект для всей навигации */
        
        
        /* Адаптивность */
        @media (max-width: 768px) {
            .neon-navbar {
                flex-direction: column;
                padding: 15px;
            }
            
            .logo-container {
                margin-bottom: 15px;
            }
            
            .nav-menu {
                flex-wrap: wrap;
                justify-content: center;
                gap: 10px;
            }
            
            .nav-link {
                padding: 5px 10px;
                font-size: 14px;
            }
        }



.container {
      background: #111;
      border: 2px solid #00fff7;
      border-radius: 15px;
      padding: 2rem 3rem;
      max-width: 600px;
      margin: 3rem 1rem 4rem 1rem;
        box-shadow:
        0 0 15px #00fff7,
        0 0 30px #00fff7;
      flex-grow: 1;
      width: 100%;
    display: block;
    margin-left: auto;
    margin-right: auto
    }

    h1 { 
      margin-bottom: 2rem;
      font-size: 2rem;
      text-shadow:
        0 0 10px #00fff7,
        0 0 20px #00fff7;
       user-select: none;
    }

    .test{
       text-align: center;
    }

    .question {
      margin-bottom: 1.5rem;
      border-left: 4px solid #00fff7;
      padding-left: 1rem;
      text-shadow: 0 0 5px #00fff7;
    }

    .answers label {
      display: block;
      margin: 0.5rem 0;
      cursor: pointer;
      transition: color 0.3s ease, background-color 0.3s ease;
      user-select: none;
      padding: 0.3rem 0.7rem;
      border-radius: 6px;
      /* Чтобы не смещать чекбоксы */
      display: flex;
      align-items: center;
      gap: 0.6rem;
      font-weight: 500;
    }

    .answers input[type="radio"] {
      margin: 0;
      accent-color: #00fff7;
      cursor: pointer;
      transform: scale(1.1);
      vertical-align: middle;
      flex-shrink: 0;
    }

    .answers label:hover:not(.correct):not(.incorrect) {
      color: #0affff;
      text-shadow:
        0 0 10px #0affff;
      background-color: rgba(0, 255, 255, 0.1);
    }

    /* Подсветка правильных ответов */
    .correct {
      background-color: #003300;
      color: #00ff88;
      text-shadow:
        0 0 8px #00ff88;
      border-left: 4px solid #00ff88;
      animation: glowGreen 1.5s ease forwards;
    }

    /* Подсветка неправильных ответов */
    .incorrect {
      background-color: #330000;
      color: #ff4444;
      text-shadow:
        0 0 8px #ff4444;
      border-left: 4px solid #ff4444;
      animation: glowRed 1.5s ease forwards;
    }

    @keyframes glowGreen {
      0% {
        box-shadow: 0 0 0 #00ff88;
      }
      100% {
        box-shadow: 0 0 10px 4px #00ff88;
      }
    }

    @keyframes glowRed {
      0% {
        box-shadow: 0 0 0 #ff4444;
      }
      100% {
        box-shadow: 0 0 10px 4px #ff4444;
      }
    }

    button#checkBtn {
      display: block;
      margin: 2rem auto 0 auto;
      background-color: transparent;
      border: 2px solid #00fff7;
      color: #00fff7;
      font-size: 1.3rem;
      padding: 0.7rem 2.5rem;
      border-radius: 10px;
      cursor: pointer;
      box-shadow:
        0 0 10px #00fff7,
        0 0 20px #00fff7;
      transition: all 0.3s ease;
        user-select: none;
      font-weight: 700;
      text-transform: uppercase;
      letter-spacing: 1.5px;
      animation: neonPulse 2.5s infinite alternate;
    }

    button#checkBtn:hover {
      background-color: #00fff7;
      color: #0a0a0a;
      box-shadow:
        0 0 30px #00fff7,
        0 0 40px #00fff7;
    }

    #result {
      margin-top: 1.5rem;
      font-size: 1.4rem;
      text-align: center;
      color: #00ff00;
      text-shadow:  #00ffea;
      min-height: 2em;
      user-select: none;
    }

    /* Мобильная адаптация */
    @media (max-width: 600px) {
      nav.neon-navbar {
        flex-direction: column;
        gap: 0.5rem;
        padding: 1rem;
      }

      ul.nav-menu {
        gap: 1rem;
        flex-wrap: wrap;
        justify-content: center;
      }

      .container {
        padding: 1.5rem 1.5rem;
        margin: 2rem 1rem 3rem 1rem;
      }
    }



footer {
            background-color: var(--dark-bg);
            color: #fff;
            padding: 40px 0 20px;
            font-family: 'Arial', sans-serif;
            border-top: 1px solid rgba(0, 255, 255, 0.2);
        }
        
        .footer-container {
            max-width: 1200px;
            margin: 0 auto;
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 30px;
            padding: 0 20px;
        }
        
        .footer-section {
            padding: 15px;
        }
        
        .footer-title {
            color: #00ffff;
            font-size: 18px;
            margin-bottom: 20px;
            text-shadow: 0 0 10px #00ffff;
            position: relative;
            padding-left: 15px;
        }
        
        .footer-title:before {
            content: '';
            position: absolute;
            left: 0;
            top: 5px;
            height: calc(100% - 10px);
            width: 3px;
            background: #00ffff;
            border-radius: 3px;
            box-shadow: 0 0 10px #00ffff;
        }
      .footer-logo {
            font-weight: bold;
            color: #00ffff;
            text-shadow: 0 0 10px #00ffff;
        }
        
        .footer-text {
            color: #fff;
            line-height: 1.6;
            margin-bottom: 15px;
            transition: all 0.3s;
            display: block;
        }
        
        a.footer-text:hover {
            color: var(--neon-blue);
            text-shadow: 0 0 5px rgba(0, 255, 255, 0.5);
        }
        
        .social-buttons {
            display: flex;
            gap: 15px;
            margin-top: 20px;
        }
        
        .social-btn {
            width: 40px;
            height: 40px;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            transition: all 0.3s;
            border: 2px solid transparent;
        }
        
        .social-btn:hover {
            transform: translateY(-3px);
            box-shadow: 0 5px 15px rgba(0, 255, 255, 0.4);
            
        }
        
        .social-btn img {
            width: 24px;
            height: 24px;
        }
        
        .whatsapp-btn {
            background-color: #25D366;
        }
        
        .telegram-btn {
            background-color: #0088cc;
        }
        
        .vk-btn {
            background-color: #4C75A3;
        }
        
        .footer-links {
            display: flex;
            flex-direction: column;
            gap: 10px;
        }
        
        .footer-link {
            color: #ff00ff;
            text-decoration: none;
            transition: all 0.3s;
        }
        
        .footer-link:hover {
            color: var(--neon-blue);
           
          text-shadow: 0 0 10px #ffffff;
            transform: translateX(5px);
        }
        
        .copyright {
            text-align: center;
            margin-top: 40px;
            padding-top: 20px;
            border-top: 1px solid rgba(0, 255, 255, 0.2);
            font-size: 14px;
            color: #7e7ecc;
        }
        
        @media (max-width: 768px) {
            .footer-container {
                grid-template-columns: 1fr;
            }
        }