* {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

body {
    max-width: 640px;
    margin: 0 auto;
    padding: 48px 24px;
    font-family: monospace;
    font-size: 14px;
    line-height: 1.6;
    color: #111;
    background: #fff;
}

#masthead {
    margin-bottom: 40px;
    border-left: 3px solid #e63946;
    padding-left: 12px;
}

#masthead h1 {
    font-size: 16px;
    font-weight: bold;
    color: #e63946;
}

#masthead p {
    color: #555;
    margin-top: 4px;
}

#content {
    margin-bottom: 40px;
}

#content h2 {
    font-size: 14px;
    font-weight: bold;
    margin-bottom: 8px;
}

#content h2 a {
    color: #2a9d8f;
    text-decoration: none;
}

#content h2 a:hover {
    text-decoration: underline;
}

#content p {
    margin-bottom: 12px;
}

#navigation {
    margin-bottom: 32px;
    padding-top: 16px;
    border-top: 1px dashed #ddd;
}

#navigation ul {
    list-style: none;
    display: flex;
    flex-wrap: wrap;
    gap: 16px;
}

#navigation a {
    color: #e76f51;
    text-decoration: none;
    font-size: 14px;
}

#navigation a:hover {
    text-decoration: underline;
}

#authorcopyright {
    color: #999;
    padding-top: 16px;
    border-top: 1px dashed #ddd;
}

a {
    color: #2a9d8f;
}

a:hover {
    text-decoration: underline;
}

@media (max-width: 600px) {
    body {
        padding: 24px 16px;
    }
}