@import url("syntax-theme-dark.css") (prefers-color-scheme: dark);
@import url("syntax-theme-light.css") (prefers-color-scheme: light);

:root {
    --bg: #ffffff;
    --text: #1a1a1a;
    --link: #0066cc;
    --link-hover: #0052a3;
    --border: #e0e0e0;
    --quote-bg: #f5f5f5;
    --quote-border: #0066cc;
    --max-width: 70ch;
}

@media (prefers-color-scheme: dark) {
    :root {
        --bg: #1a1a1a;
        --text: #e0e0e0;
        --link: #66b3ff;
        --link-hover: #99ccff;
        --border: #333333;
        --quote-bg: #2a2a2a;
        --quote-border: #66b3ff;
    }
}

* {
    box-sizing: border-box;
}

body {
    font-family:
        -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue",
        Arial, sans-serif;
    line-height: 1.6;
    color: var(--text);
    background: var(--bg);
    margin: 0;
    font-size: 1rem;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

body > * {
    padding-left: 0.75rem;
    padding-right: 0.75rem;
}

header,
main,
footer {
    max-width: var(--max-width);
    margin: 0 auto;
    width: 100%;
}

body > header {
    padding-top: 0.25rem;
    padding-bottom: 0.5rem;
    border-bottom: 1px solid var(--border);
    margin-bottom: 0.5rem;
}

nav {
    display: flex;
    gap: 1rem;
}

nav a {
    text-decoration: none;
    color: var(--text);
    font-weight: 500;
}

nav a:hover {
    color: var(--link);
}

main {
    flex: 1;
    padding-bottom: 1rem;
}

footer {
    margin-top: auto;
    padding-top: 0.5rem;
    padding-bottom: 0.5rem;
    border-top: 1px solid var(--border);
    font-size: 0.9rem;
    opacity: 0.7;
}

a {
    color: var(--link);
}

a:hover {
    color: var(--link-hover);
}

h1,
h2,
h3,
h4,
h5,
h6 {
    line-height: 1.3;
    margin-top: 1rem;
    margin-bottom: 0.25rem;
}

h1:first-child {
    margin-top: 0;
}

article > header {
    margin-bottom: 0.5rem;
}

article > header h1 {
    margin-bottom: 0.125rem;
}

h1 {
    font-size: 2rem;
}
h2 {
    font-size: 1.5rem;
}
h3 {
    font-size: 1.25rem;
}

p {
    margin: 0.5rem 0;
}

ul,
ol {
    margin: 0.5rem 0;
    padding-left: 1.5rem;
}

li {
    margin: 0.25rem 0;
}

code {
    background: var(--border);
    padding: 0.2rem 0.4rem;
    border-radius: 3px;
    font-size: 0.9em;
}

pre {
    background: var(--border);
    padding: 0.75rem;
    border-radius: 3px;
    overflow-x: auto;
    margin: 0.5rem 0;
}

pre code {
    background: none;
    padding: 0;
}

img {
    max-width: 100%;
    height: auto;
}

blockquote {
    margin: 1rem 0;
    padding: 0.75rem 1rem;
    background: var(--quote-bg);
    border-left: 4px solid var(--quote-border);
    border-radius: 0 3px 3px 0;
}

blockquote p:first-child {
    margin-top: 0;
}

blockquote p:last-child {
    margin-bottom: 0;
}

.footnote-definition {
    display: flex;
    gap: 0.5rem;
    margin: 0.5rem 0;
}

.footnote-definition sup {
    position: static;
    font-size: 1rem;
    vertical-align: baseline;
    line-height: inherit;
}

.footnote-definition sup::after {
    content: ":";
}

.footnote-definition p {
    margin: 0;
    flex: 1;
}

@media (max-width: 600px) {
    body {
        font-size: 0.95rem;
    }

    h1 {
        font-size: 1.75rem;
    }
    h2 {
        font-size: 1.35rem;
    }
    h3 {
        font-size: 1.15rem;
    }
}