/* Общие настройки */
body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    line-height: 1.6;
    color: #333;
    background-color: #fdfdfd;
    margin: 0;
    padding: 0;
}

/* Header */
header {
    background-color: #0066cc;
    color: #fff;
    padding: 20px 10px;
    text-align: center;
}

header h1 {
    margin: 0;
    font-size: 1.8rem;
}

header nav ul {
    list-style: none;
    padding: 0;
    margin: 10px 0 0 0;
    display: flex;
    justify-content: center;
    gap: 20px;
}

header nav ul li a {
    color: #fff;
    text-decoration: none;
    font-weight: bold;
}

header nav ul li a:hover {
    text-decoration: underline;
}

/* Main content */
main {
    max-width: 800px;
    margin: 30px auto;
    padding: 0 20px;
}

main h2 {
    color: #0066cc;
    margin-top: 25px;
    margin-bottom: 10px;
}

main p, main ul {
    margin-bottom: 15px;
}

main ul {
    padding-left: 20px;
}

/* Footer */
footer {
    text-align: center;
    background-color: #f0f0f0;
    padding: 15px 10px;
    font-size: 0.9rem;
    color: #555;
}

footer a {
    color: #0066cc;
    text-decoration: none;
}

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

/* Адаптивность */
@media (max-width: 600px) {
    header nav ul {
        flex-direction: column;
        gap: 10px;
    }

    main {
        padding: 0 10px;
    }
}