:root {
    --bg-color: #fcfcfc;
    --text-color: #24292f;
    --text-muted: #57606a;
    --border-color: #d0d7de;
    --accent-color: #0969da;
    --code-bg: #f6f8fa;
    --card-bg: #ffffff;
}

@media (prefers-color-scheme: dark) {
    :root {
        --bg-color: #0d1117;
        --text-color: #c9d1d9;
        --text-muted: #8b949e;
        --border-color: #30363d;
        --accent-color: #58a6ff;
        --code-bg: #161b22;
        --card-bg: #161b22;
    }
}

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

body {
    background-color: var(--bg-color);
    color: var(--text-color);
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
    font-size: 16px;
    line-height: 1.6;
    padding: 0 16px;
}

.site-wrapper {
    max-width: 680px;
    margin: 48px auto;
}

header {
    margin-bottom: 40px;
    padding-bottom: 24px;
    border-bottom: 1px solid var(--border-color);
}

.site-title {
    font-size: 1.5rem;
    font-weight: 700;
    margin-bottom: 6px;
    color: var(--text-color);
}

.site-desc {
    color: var(--text-muted);
    font-size: 0.95rem;
}

nav {
    margin-top: 16px;
}

nav a {
    color: var(--accent-color);
    text-decoration: none;
    margin-right: 18px;
    font-size: 0.9rem;
    font-weight: 500;
}

nav a:hover {
    text-decoration: underline;
}

main {
    margin-bottom: 48px;
}

section {
    margin-bottom: 36px;
}

h2 {
    font-size: 1.25rem;
    font-weight: 600;
    margin-bottom: 16px;
    color: var(--text-color);
}

p {
    margin-bottom: 14px;
    color: var(--text-color);
}

.lead {
    font-size: 1.05rem;
    line-height: 1.7;
    color: var(--text-color);
}

.post-list {
    list-style: none;
}

.post-item {
    margin-bottom: 24px;
    padding: 16px 20px;
    background: var(--card-bg);
    border: 1px solid var(--border-color);
    border-radius: 6px;
}

.post-date {
    font-size: 0.82rem;
    color: var(--text-muted);
    margin-bottom: 4px;
}

.post-title {
    font-size: 1.05rem;
    font-weight: 600;
    margin-bottom: 8px;
    color: var(--text-color);
}

.post-excerpt {
    font-size: 0.92rem;
    color: var(--text-muted);
    line-height: 1.55;
    margin-bottom: 0;
}

code {
    background-color: var(--code-bg);
    padding: 2px 6px;
    border-radius: 4px;
    font-size: 0.88em;
    font-family: ui-monospace, SFMono-Regular, "SF Mono", Menlo, Consolas, monospace;
}

footer {
    padding-top: 24px;
    border-top: 1px solid var(--border-color);
    font-size: 0.85rem;
    color: var(--text-muted);
    display: flex;
    justify-content: space-between;
    align-items: center;
}