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

        html {
            scroll-behavior: smooth;
        }

        body {
            font-family: 'Segoe UI', Arial, sans-serif;
            line-height: 1.6;
            color: white;
            background: linear-gradient(135deg, #c0392b 0%, #e74c3c 100%);
            min-height: 100vh;
        }

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

        /* Шапка */
        header {
            text-align: center;
            padding: 30px 0;
            color: white;
        }

        h1 {
            font-size: 2.5rem;
            margin-bottom: 10px;
            text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.3);
        }

        .tagline {
            font-size: 1.2rem;
            color: #ffffff;
            opacity: 1;
            margin-bottom: 30px;
        }

        /* Верхнее меню */
        .top-nav {
            background: rgba(231, 76, 60, 0.98);
            border-radius: 12px;
            padding: 12px 0;
            margin: 20px auto;
            text-align: center;
            box-shadow: 0 5px 15px rgba(0, 0, 0, 0.2);
            backdrop-filter: blur(10px);
            max-width: 600px;
        }

        .top-nav ul {
            list-style: none;
            display: flex;
            justify-content: center;
            gap: 40px;
            margin: 0;
            padding: 0;
        }

        .top-nav a {
            color: white;
            text-decoration: none;
            font-weight: 600;
            font-size: 1.1rem;
            transition: color 0.3s, transform 0.2s;
            padding: 8px 12px;
            border-radius: 8px;
        }

        .top-nav a:hover {
            color: #fff;
            background: rgba(255, 255, 255, 0.2);
            transform: translateY(-2px);
        }

        /* Основной контент */
        .content-area {
            background: white;
            border-radius: 15px;
            box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
            padding: 30px;
        }

        h4 {
            color: #e74c3c;
            margin-bottom: 20px;
            text-align: center;
            font-size: 1.3rem;
        }
    
        h3 {
            color: #e74c3c;
            margin-bottom: 20px;
            text-align: center;
            font-size: 1.6rem;
        }

         h2 {
            color: #e74c3c;
            margin-bottom: 20px;
            text-align: center;
            font-size: 2.4rem;
        }

        /* Адаптивный контейнер для видео */
        .video-container {
            position: relative;
            width: 100%;
            height: 0;
            padding-bottom: 56.25%; /* Соотношение сторон 16:9 */
            overflow: hidden;
            border-radius: 10px;
            box-shadow: 0 5px 15px rgba(0, 0, 0, 0.2);
            margin: 20px 0;
        }

        .video-container iframe {
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            border: none;
        }

        /* Текст под видео */
        .video-info {
            margin-top: 20px;
            font-size: 0.95rem;
            color: #666;
            text-align: center;
        }

        /* Футер */
        footer {
            text-align: center;
            padding: 30px 0;
            color: rgba(255, 255, 255, 0.8);
            border-top: 1px solid rgba(255, 255, 255, 0.2);
            margin-top: 40px;
        }

        /* Поп-ап */
        .popup-overlay {
            display: none;
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            background: rgba(0, 0, 0, 0.5);
            justify-content: center;
            align-items: center;
            z-index: 1000;
        }

        .popup-content {
            background: white;
            padding: 30px;
            border-radius: 15px;
            text-align: center;
            max-width: 400px;
            box-shadow: 0 10px 30px rgba(0, 0, 0, 0.3);
            color: #333;
        }

        .popup-content h3 {
            margin-bottom: 10px;
            color: #e74c3c;
        }

        .popup-content p {
            margin-bottom: 20px;
        }

        .close-btn {
            background: #e74c3c;
            color: white;
            border: none;
            padding: 10px 20px;
            font-size: 1rem;
            border-radius: 5px;
            cursor: pointer;
            transition: background 0.3s;
        }

        .close-btn:hover {
            background: #c0392b;
        }