body {
    margin: 0;
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    background-color: #fdfdfd;
    color: #1a1a1a;
    line-height: 1.7;
    padding-bottom: 50px;
}

header {
    background-color: #1e3a8a;
    color: white;
    padding: 40px 20px;
    text-align: center;
}

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

.subtitle {
    font-size: 1.2em;
    margin-top: 8px;
    color: #d1d5db;
}

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

.qa-block h2 {
    font-size: 1.1em;
    margin-top: 30px;
    color: #1e3a8a;
    font-weight: 600;
}

.qa-block p {
    margin: 10px 0 20px;
}

.qa-block ul {
    margin: 10px 0 20px 20px;
    padding-left: 20px;
}

.qa-block li {
    margin-bottom: 10px;
}

.nav-links {
    margin-top: 40px;
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    justify-content: center;
}

.button {
    background-color: #1e3a8a;
    color: white;
    padding: 10px 18px;
    text-decoration: none;
    border-radius: 6px;
    font-size: 0.95em;
    transition: background-color 0.2s ease;
}

.button:hover {
    background-color: #2c489e;
}