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

body {
    --bg: #0a0a0f;
    --surface: #18181b;
    --border: #27272a;
    --text-primary: #e4e4e7;
    --text-secondary: #a1a1aa;
    --text-muted: #8a8a94;
    --accent: #22c55e;
    --accent-text: #22c55e;
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    line-height: 1.75;
    color: var(--text-primary);
    background: var(--bg);
}

body[data-theme="light"] {
    --bg: #f8fafc;
    --surface: #ffffff;
    --border: #e2e8f0;
    --text-primary: #18181b;
    --text-secondary: #3f3f46;
    --text-muted: #52525b;
    --accent-text: #15803d;
}

.wrap {
    max-width: 760px;
    margin: 0 auto;
    padding: 40px 20px 80px;
}

.top-nav {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 50px;
}

.top-nav a {
    color: var(--accent-text);
    text-decoration: none;
    font-weight: 600;
}

h1 {
    font-size: 2.4rem;
    line-height: 1.2;
    margin-bottom: 12px;
}

h2 {
    font-size: 1.5rem;
    margin: 44px 0 14px;
}

p, li {
    color: var(--text-secondary);
    margin-bottom: 16px;
}

ul, ol {
    padding-left: 24px;
}

a {
    color: var(--accent-text);
}

strong {
    color: var(--text-primary);
}

.meta {
    color: var(--text-muted);
    font-size: 0.95rem;
    margin-bottom: 36px;
}

pre {
    background: #0d1117;
    color: #c9d1d9;
    border: 1px solid #30363d;
    border-radius: 10px;
    padding: 18px 20px;
    overflow-x: auto;
    margin: 0 0 20px;
    font-size: 0.88rem;
    line-height: 1.6;
}

code {
    font-family: 'SFMono-Regular', Menlo, Consolas, 'Liberation Mono', monospace;
}

p code, li code {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: 4px;
    padding: 1px 6px;
    font-size: 0.88em;
}

.post-card {
    display: block;
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: 12px;
    padding: 28px;
    text-decoration: none;
    margin-bottom: 20px;
}

.post-card:hover {
    border-color: var(--accent);
}

.post-card h2 {
    margin: 0 0 8px;
    color: var(--text-primary);
}

.post-card p {
    margin: 0;
}

.callout {
    border-left: 4px solid var(--accent);
    background: var(--surface);
    border-radius: 0 10px 10px 0;
    padding: 16px 20px;
    margin: 0 0 20px;
}

.callout p {
    margin: 0;
}

footer {
    margin-top: 60px;
    padding-top: 24px;
    border-top: 1px solid var(--border);
    color: var(--text-muted);
    font-size: 0.9rem;
}

table {
    width: 100%;
    border-collapse: collapse;
    margin-bottom: 20px;
}

th, td {
    text-align: left;
    padding: 10px 12px;
    border-bottom: 1px solid var(--border);
    color: var(--text-secondary);
}

th {
    color: var(--text-primary);
}