html, body, #container
{
   width: 100%;
   height: 100%;
}
body
{
   background-color: #FFFFFF;
   color: #000000;
   font-family: Arial;
   font-weight: normal;
   font-size: 17px;
   line-height: 1.1875;
   margin: 0;
   padding: 0;
}
        body {
            font-family: Arial, sans-serif;
            line-height: 1.6;
            background-color: #f4f4f4;
            margin: 0;
            padding: 0;
            color: #333;
        }

        header {
            background-color: #003366;
            color: #fff;
            padding: 20px 0;
            text-align: center;
        }

        header h1 {
            margin: 0;
            font-size: 2em;
        }

        nav {
            margin-top: 10px;
        }

        nav a {
            color: #fff;
            margin: 0 15px;
            text-decoration: none;
            font-weight: bold;
        }

        nav a:hover {
            text-decoration: underline;
        }

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

        section {
            margin-bottom: 40px;
        }

        h2 {
            color: #003366;
            border-bottom: 2px solid #003366;
            padding-bottom: 10px;
        }

        p {
            margin: 15px 0;
        }

        .content {
            background-color: #fff;
            padding: 20px;
            border-radius: 8px;
            box-shadow: 0 0 10px rgba(0,0,0,0.1);
        }

        footer {
            background-color: #003366;
            color: #fff;
            text-align: center;
            padding: 20px 0;
            margin-top: 40px;
        }

        /* Кнопка для возврата наверх */
        #backToTop {
            position: fixed;
            bottom: 30px;
            right: 30px;
            background-color: #003366;
            color: #fff;
            border: none;
            padding: 12px 16px;
            border-radius: 50%;
            cursor: pointer;
            font-size: 18px;
            display: none;
            transition: background-color 0.3s;
        }

        #backToTop:hover {
            background-color: #0055aa;
        }