/* Modern Minimalist Blog Theme */
:root {
    --bg-color: #ffffff;
    --text-color: #333333;
    --heading-color: #111111;
    --link-color: #0070f3;
    --link-hover: #0056b3;
    --border-color: #eaeaea;
    --code-bg: #f6f8fa;
    --quote-border: #0070f3;
    --max-width: 720px;
    --font-sans: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
    --font-serif: Georgia, Cambria, "Times New Roman", Times, serif;
}

@media (prefers-color-scheme: dark) {
    :root {
        --bg-color: #0d1117;
        --text-color: #c9d1d9;
        --heading-color: #ffffff;
        --link-color: #58a6ff;
        --link-hover: #79c0ff;
        --border-color: #30363d;
        --code-bg: #161b22;
        --quote-border: #1f6feb;
    }
}

* {
    box-sizing: border-box;
}

body {
    background-color: var(--bg-color);
    color: var(--text-color);
    font-family: var(--font-sans);
    line-height: 1.7;
    margin: 0;
    padding: 0;
    transition: background-color 0.3s ease, color 0.3s ease;
}

.container {
    max-width: var(--max-width);
    margin: 0 auto;
    padding: 2rem 1.5rem;
}

/* Typography */
h1, h2, h3, h4, h5, h6 {
    color: var(--heading-color);
    margin-top: 2em;
    margin-bottom: 1em;
    font-weight: 600;
    line-height: 1.25;
}

h1 { font-size: 2.25rem; border-bottom: 1px solid var(--border-color); padding-bottom: 0.3em; margin-top: 0; }
h2 { font-size: 1.75rem; border-bottom: 1px solid var(--border-color); padding-bottom: 0.3em; }
h3 { font-size: 1.5rem; }
h4 { font-size: 1.25rem; }

p {
    margin-bottom: 1.5em;
    font-size: 1.125rem;
}

a {
    color: var(--link-color);
    text-decoration: none;
    border-bottom: 1px solid transparent;
    transition: border-bottom 0.2s;
}

a:hover {
    color: var(--link-hover);
    border-bottom-color: var(--link-hover);
}

/* Lists */
ul, ol {
    margin-bottom: 1.5em;
    padding-left: 2em;
}

li {
    margin-bottom: 0.5em;
    font-size: 1.125rem;
}

/* Blockquotes */
blockquote {
    margin: 1.5em 0;
    padding: 0.5em 1em;
    border-left: 4px solid var(--quote-border);
    background: var(--code-bg);
    border-radius: 0 4px 4px 0;
    font-style: italic;
    color: var(--text-color);
    opacity: 0.9;
}

/* Code */
code {
    font-family: "SFMono-Regular", Consolas, "Liberation Mono", Menlo, Courier, monospace;
    font-size: 0.9em;
    background-color: var(--code-bg);
    padding: 0.2em 0.4em;
    border-radius: 3px;
}

pre {
    background-color: var(--code-bg);
    padding: 1rem;
    overflow-x: auto;
    border-radius: 6px;
    margin-bottom: 1.5em;
    border: 1px solid var(--border-color);
}

pre code {
    background-color: transparent;
    padding: 0;
    font-size: 0.9em;
}

/* Images */
img {
    max-width: 100%;
    height: auto;
    border-radius: 6px;
    display: block;
    margin: 2rem auto;
    box-shadow: 0 4px 12px rgba(0,0,0,0.1);
}

/* Start/End styling for center tags if any */
center {
    display: block;
    text-align: center;
    margin: 2rem 0;
    font-weight: bold;
    color: var(--heading-color);
}

/* Table */
table {
    width: 100%;
    border-collapse: collapse;
    margin-bottom: 1.5em;
    font-size: 1rem;
}

th, td {
    padding: 0.75em;
    border: 1px solid var(--border-color);
    text-align: left;
}

th {
    background-color: var(--code-bg);
    font-weight: 600;
}

/* Misc */
hr {
    border: 0;
    border-top: 1px solid var(--border-color);
    margin: 3rem 0;
}

.footer {
    margin-top: 4rem;
    padding-top: 2rem;
    border-top: 1px solid var(--border-color);
    text-align: center;
    font-size: 0.875rem;
    color: #666;
}