body {
    font-family: 'Roboto', Arial, sans-serif;
    background: #f6f8fa;
    margin: 0;
    padding: 0;
}

.main-container {
    max-width: 700px;
    margin: 40px auto;
    padding: 32px;
    background: #fff;
    border-radius: 18px;
    box-shadow: 0 6px 32px rgba(60, 60, 90, 0.12), 0 1.5px 4px rgba(60, 60, 90, 0.08);
    border: 1px solid #e3e8ee;
}

h1,
header b {
    font-family: 'Roboto Slab', serif;
    color: #2d3748;
}

a {
    font-family: 'Roboto', Arial, sans-serif;
    color: #3182ce;
    text-decoration: none;
    font-weight: 500;
    transition: color 0.2s;
}

a:hover {
    color: #2b6cb0;
    text-decoration: underline;
}

u {
    text-decoration: underline;
}

ul {
    list-style: none;
    padding: 0;
}

li {
    margin-bottom: 24px;
}

header {
    margin-bottom: 8px;
}

p {
    color: #444;
    line-height: 1.7;
}