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

body {
    font-family: 'Georgia', 'Times New Roman', serif;
    line-height: 1.7;
    color: #1a1a1a;
    background: #fdfcfa;
    padding: 60px 30px;
}

.container {
    max-width: 800px;
    margin: 0 auto;
}

.back-link {
    display: inline-block;
    color: #666;
    text-decoration: none;
    margin-bottom: 40px;
    font-size: 0.9em;
    border-bottom: 1px solid transparent;
    transition: border-color 0.2s;
}

.back-link:hover {
    border-bottom-color: #666;
}

article h1 {
    font-size: 2.5em;
    font-weight: 400;
    margin-bottom: 40px;
    color: #000;
}

article h2 {
    font-size: 1.8em;
    font-weight: 400;
    margin: 40px 0 20px 0;
    color: #000;
}

article h3 {
    font-size: 1.4em;
    font-weight: 400;
    margin: 30px 0 15px 0;
    color: #000;
}

article p {
    margin-bottom: 22px;
    font-size: 1.1em;
    color: #2a2a2a;
}

article a {
    color: #000;
    text-decoration: none;
    border-bottom: 1px solid #ccc;
    transition: border-color 0.2s;
}

article a:hover {
    border-bottom-color: #000;
}

article ul, article ol {
    margin: 22px 0;
    padding-left: 30px;
}

article li {
    margin-bottom: 10px;
    font-size: 1.05em;
}

article blockquote {
    border-left: 3px solid #ccc;
    padding-left: 20px;
    margin: 30px 0;
    color: #666;
    font-style: italic;
}

article code {
    background: #f5f5f5;
    padding: 2px 6px;
    border-radius: 3px;
    font-family: 'Monaco', 'Courier New', monospace;
    font-size: 0.9em;
}

article pre {
    background: #f5f5f5;
    padding: 20px;
    border-radius: 5px;
    overflow-x: auto;
    margin: 25px 0;
}

article pre code {
    background: none;
    padding: 0;
}

article hr {
    border: none;
    border-top: 1px solid #e5e5e5;
    margin: 50px auto;
    width: 60%;
    opacity: 0.6;
}

@media (max-width: 900px) {
    body {
        padding: 40px 20px;
    }

    article h1 {
        font-size: 2em;
    }
}