body {
    margin: 0;
    font-family: 'Nunito', sans-serif;
    color: #333;
    background: #fafafa;
}

main {
    margin-top: 80px;
    /* чтобы не перекрывал header */
    display: flex;
    justify-content: center;
    align-items: flex-start;
    padding: 20px;
}

section {
    background: #fff;
    padding: 30px;
    border-radius: 12px;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
    width: 100%;
    max-width: 750px;
}

section h2 {
    text-align: center;
    margin-bottom: 20px;
    color: #333;
}

main button {
    flex: 1;
    height: 40px;
    min-width: 120px;
    border: none;
    border-radius: 8px;
    font-size: 14px;
    font-weight: bold;
    cursor: pointer;
    background: #4caf50;
    color: white;
    transition: background 0.3s ease;
}

button:hover {
    background: #45a049;
}