:root {
    --bg: #ffffff;
    --text: #111111;
    --text-muted: #666666;
    --link: #000000;
    --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
}

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

body {
    background-color: var(--bg);
    color: var(--text);
    font-family: var(--font-sans);
    line-height: 1.6;
    display: flex;
    justify-content: center;
    padding: 4rem 1rem;
}

.container {
    width: 100%;
    max-width: 650px;
}

header {
    margin-bottom: 5rem;
}

header h1 {
    font-size: 1.5rem;
    font-weight: 700;
    margin-bottom: 0.25rem;
    letter-spacing: -0.02em;
}

.subtitle {
    color: var(--text-muted);
    font-size: 0.9rem;
}

.post-preview {
    margin-bottom: 4rem;
}

.post-preview h2 {
    font-size: 1.25rem;
    font-weight: 600;
    margin-bottom: 0.5rem;
    letter-spacing: -0.01em;
}

.post-preview h2 a {
    text-decoration: none;
    color: var(--text);
}

.post-preview h2 a:hover {
    text-decoration: underline;
}

.post-meta {
    font-size: 0.8rem;
    color: var(--text-muted);
    margin-bottom: 1rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.read-more {
    display: inline-block;
    margin-top: 1rem;
    color: var(--text);
    text-decoration: none;
    font-size: 0.9rem;
    font-weight: 500;
    border-bottom: 1px solid #eee;
}

.read-more:hover {
    border-bottom-color: var(--text);
}

.post-content h3 {
    font-size: 1.1rem;
    font-weight: 600;
    margin: 2rem 0 1rem 0;
    color: var(--text);
}

.post-content p {
    margin-bottom: 1.5rem;
}

.post-content pre {
    background: #f9f9f9;
    padding: 1.5rem;
    border-radius: 4px;
    overflow-x: auto;
    margin: 2rem 0;
    border: 1px solid #eee;
}

.post-content code {
    font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace;
    font-size: 0.85rem;
    color: var(--text);
}

.post-content ul {
    margin-bottom: 1.5rem;
    padding-left: 1.5rem;
}

footer {
    margin-top: 6rem;
    padding-top: 2rem;
    border-top: 1px solid #f0f0f0;
    color: var(--text-muted);
    font-size: 0.8rem;
}

@media (max-width: 640px) {
    body {
        padding: 2rem 1rem;
    }
}