---

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

/* BODY */
body {
    font-family: Arial, sans-serif;
    background-color: #f0f4f8;
}

/* ШАПКА */
header {
    background-color: #1e3c72;
    color: white;
    text-align: center;
    padding: 25px;
}

/* ГОРИЗОНТАЛЬНОЕ МЕНЮ */
.top-menu {
    background-color: #2a5298;
}

.top-menu ul {
    display: flex;
    list-style: none;
    justify-content: center;
}

.top-menu li {
    margin: 0 15px;
}

.top-menu a {
    color: white;
    text-decoration: none;
    display: block;
    padding: 15px;
    font-size: 18px;
}

.top-menu a:hover {
    background-color: #16335c;
    border-radius: 5px;
}

/* ОСНОВНАЯ ЧАСТЬ */
.container {
    display: flex;
    min-height: 500px;
}

/* ВЕРТИКАЛЬНОЕ МЕНЮ */
.sidebar {
    width: 250px;
    background-color: #16335c;
    color: white;
    padding: 20px;
}

.sidebar h2 {
    margin-bottom: 20px;
    color: #00ffcc;
}

.sidebar ul {
    list-style: none;
}

.sidebar li {
    margin-bottom: 15px;
}

.sidebar a {
    color: white;
    text-decoration: none;
    font-size: 18px;
}

.sidebar a:hover {
    color: #00ffcc;
}

/* ОСНОВНОЙ КОНТЕНТ */
.content {
    flex: 1;
    background-color: white;
    padding: 30px;
}

.content h2 {
    color: #1e3c72;
    margin-bottom: 20px;
}

.content h3 {
    margin-top: 20px;
    margin-bottom: 15px;
    color: #2a5298;
}

.content p {
    margin-bottom: 15px;
    line-height: 1.6;
    font-size: 18px;
}

.content ul {
    margin-left: 20px;
}

.content li {
    margin-bottom: 10px;
    font-size: 18px;
}

/* ПОДВАЛ */
footer {
    background-color: #1e3c72;
    color: white;
    text-align: center;
    padding: 20px;
}