body {
    margin: 0;
    font-family: Arial, sans-serif;
    background: #f7f9fc;
    color: #333;
    display: flex;
    flex-direction: column;
    min-height: 100vh;
}

header {
    background: #fff;
    box-shadow: 0 1px 5px rgba(0, 0, 0, 0.1);
    padding: 15px 20px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    position: relative;
}

header h1 {
    font-size: 1.2em;
    margin: 0;
}

nav {
    display: flex;
}

nav ul {
    list-style: none;
    margin: 0;
    padding: 0;
    display: flex;
    gap: 20px;
}

nav ul li a {
    text-decoration: none;
    color: #333;
    font-weight: bold;
}

nav ul li a:hover {
    color: #007BFF;
}

/* Кнопка "гамбургер" */
.menu-toggle {
    display: none;
    flex-direction: column;
    justify-content: space-between;
    width: 25px;
    height: 20px;
    cursor: pointer;
}

.menu-toggle span {
    display: block;
    height: 3px;
    width: 100%;
    background: #333;
    border-radius: 2px;
}

/* Адаптив */
@media (max-width: 768px) {
    nav {
        display: none;
        position: absolute;
        top: 60px;
        right: 20px;
        background: #fff;
        box-shadow: 0 2px 8px rgba(0, 0, 0, 0.2);
        border-radius: 5px;
    }

    nav ul {
        flex-direction: column;
        gap: 10px;
        padding: 15px;
    }

    .menu-toggle {
        display: flex;
    }

    nav.active {
        display: block;
    }
}

main {
    flex: 1;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: 40px 20px;
    text-align: center;
}

main h2 {
    font-size: 1.6em;
    margin-bottom: 15px;
}

main p {
    max-width: 700px;
    margin: 10px auto;
    line-height: 1.6;
}

.cta-button {
    display: inline-block;
    padding: 15px 30px;
    font-size: 1.1em;
    font-weight: bold;
    color: #fff;
    background: #007BFF;
    text-decoration: none;
    border-radius: 5px;
    margin-top: 25px;
}

.cta-button:hover {
    background: #0056b3;
}

section {
    padding: 40px 20px;
    max-width: 900px;
    margin: 0 auto;
}

section h3 {
    font-size: 1.4em;
    margin-bottom: 15px;
}

footer {
    background: #fff;
    padding: 15px;
    text-align: center;
    font-size: 0.9em;
    box-shadow: 0 -1px 5px rgba(0, 0, 0, 0.05);
}

footer a {
    color: #007BFF;
    text-decoration: none;
}