:root {
    --bg: #fafaf9;
    --fg: #1c1917;
    --muted: #78716c;
    --accent: #4a4a8a;
    --border: #e7e5e4;
    --max-width: 680px;
}

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

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, sans-serif;
    line-height: 1.7;
    color: var(--fg);
    background: var(--bg);
    max-width: var(--max-width);
    margin: 0 auto;
    padding: 2rem 1.5rem;
}

nav {
    margin-bottom: 2.5rem;
    font-size: 0.9rem;
    color: var(--muted);
}

nav a {
    color: var(--accent);
    text-decoration: none;
}

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

main time {
    display: block;
    color: var(--muted);
    font-size: 0.85rem;
    margin-bottom: 1.5rem;
}

h1 {
    font-size: 1.6rem;
    color: var(--fg);
    border-bottom: 2px solid var(--accent);
    padding-bottom: 0.4rem;
    margin-bottom: 1rem;
}

h2 {
    font-size: 1.25rem;
    color: var(--accent);
    margin-top: 2rem;
    margin-bottom: 0.5rem;
}

h3 {
    font-size: 1.1rem;
    color: var(--muted);
    margin-top: 1.5rem;
    margin-bottom: 0.5rem;
}

p {
    margin: 1rem 0;
}

strong {
    color: var(--fg);
}

hr {
    border: none;
    border-top: 1px solid var(--border);
    margin: 2rem 0;
}

.archive-list {
    list-style: none;
    padding: 0;
}

.archive-list li {
    padding: 0.5rem 0;
    border-bottom: 1px solid var(--border);
}

.archive-list a {
    color: var(--accent);
    text-decoration: none;
    font-size: 1.05rem;
}

.archive-list a:hover {
    text-decoration: underline;
}

@media (max-width: 600px) {
    body { padding: 1rem; }
    h1 { font-size: 1.3rem; }
}