:root {
    --color-text: #1d1d1f;
    --color-muted: #6b6b70;
    --color-link: #0a58ca;
    --color-link-hover: #084298;
    --color-rule: #e5e5e7;
    --color-surface: #ffffff;
    --color-surface-alt: #fafafb;
    --radius: 6px;
    --max-width: 42rem;
    --gap: 1.5rem;
}

* {
    box-sizing: border-box;
}

html, body {
    margin: 0;
    padding: 0;
    background: var(--color-surface);
    color: var(--color-text);
    font-family: system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", sans-serif;
    line-height: 1.6;
    font-size: 17px;
}

body {
    max-width: var(--max-width);
    margin: 0 auto;
    padding: 2rem 1.25rem 4rem;
}

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

a:hover, a:focus {
    color: var(--color-link-hover);
    text-decoration: underline;
}

h1, h2, h3 {
    line-height: 1.25;
    margin: 1.5rem 0 0.75rem;
}

h1 { font-size: 1.9rem; }
h2 { font-size: 1.3rem; }
h3 { font-size: 1.1rem; }

p, ul, ol {
    margin: 0 0 1rem;
}

ul.entries, ol.entries {
    list-style: none;
    padding: 0;
    margin: 0 0 1.5rem;
    border-top: 1px solid var(--color-rule);
}

ul.entries li, ol.entries li {
    padding: 0.75rem 0;
    border-bottom: 1px solid var(--color-rule);
}

ul.entries li:last-child, ol.entries li:last-child {
    border-bottom: 0;
}

article.entry {
    margin-bottom: var(--gap);
}

.theme-mark {
    display: inline-block;
    font-size: 0.7rem;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    color: var(--color-muted);
    margin: 0 0 1.5rem;
    padding: 0.2rem 0.5rem;
    background: var(--color-surface-alt);
    border: 1px solid var(--color-rule);
    border-radius: var(--radius);
}

.empty {
    color: var(--color-muted);
    font-style: italic;
}

code, pre {
    font-family: ui-monospace, SFMono-Regular, "SF Mono", Menlo, Consolas, monospace;
    font-size: 0.92em;
}

pre {
    background: var(--color-surface-alt);
    border: 1px solid var(--color-rule);
    border-radius: var(--radius);
    padding: 0.75rem 1rem;
    overflow-x: auto;
}

blockquote {
    margin: 0 0 1rem;
    padding: 0.5rem 1rem;
    border-left: 3px solid var(--color-rule);
    color: var(--color-muted);
}