@import url("https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600;700&display=swap");

:root {
    --bg-color: #fff;
    --text-color: #000;
    --link-color: blue;
    --link-hover-color: #0000ee;
    --border-color: #ddd;
    --border-color-strong: #ccc;
    --nav-link-color: blue;
    --toc-border: #ccc;
    --toc-sub-border: #ddd;
    --button-color: blue;
    --footer-text: #555;
    --footer-border: #ddd;
    --footer-license: #666;
    --footer-rendered: #777;
    --code-bg: #f5f5f5;
}

@media (prefers-color-scheme: dark) {
    :root {
        --bg-color: #1c1c1c;
        --text-color: #d0d0d0;
        --link-color: #8eaad6;
        --link-hover-color: #b0c4e8;
        --nav-link-color: #8eaad6;
        --toc-border: #666;
        --toc-sub-border: #555;
        --button-color: #8eaad6;
        --footer-text: #999;
        --footer-border: #2b2b2b;
        --footer-license: #777;
        --footer-rendered: #666;
        --code-bg: #2a2a2a;
    }
}

body {
    font-family:
        -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue",
        Arial, sans-serif;
    margin: 40px auto;
    max-width: 800px;
    padding: 0 20px;
    line-height: 1.6;
    background-color: var(--bg-color);
    color: var(--text-color);
}

p,
#markdown-button {
    font-family: Georgia, "Times New Roman", Times, serif;
}

h1,
h2,
h3,
h4 {
    font-weight: 600;
}

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

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

nav {
    margin-bottom: 20px;
}

nav a {
    margin-right: 15px;
    color: var(--nav-link-color);
}

li {
    text-align: left;
}

ol {
    list-style-type: devanagari;
}

code {
    background-color: var(--code-bg);
    padding: 2px 4px;
    border-radius: 4px;
}

button {
    background: none !important;
    border: none;
    padding: 0 !important;
    color: var(--button-color);
    text-decoration: none;
    cursor: pointer;
}

.table-of-contents {
    margin-bottom: 20px;
    max-width: 600px;
    font-size: 0.95em;
    border-left: 3px solid var(--toc-border);
    color: var(--text-color);
}

.table-of-contents ul {
    padding-left: 20px;
    list-style-type: none;
}

.table-of-contents li {
    margin-top: 8px;
    margin-bottom: 8px;
}

.table-of-contents ul ul {
    padding-left: 15px;
    border-left: 2px solid var(--toc-sub-border);
    margin-left: 10px;
}

footer {
    margin-top: 40px;
    padding-top: 20px;
    padding-left: 20px;
    padding-right: 20px;
    text-align: center;
    font-size: 0.9em;
    color: var(--footer-text);
    border-top: 1px solid var(--footer-border);
}

footer .license {
    margin-top: 10px;
    font-size: 0.85em;
    color: var(--footer-license);
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
}

footer .rendered {
    font-size: 0.8em;
    color: var(--footer-rendered);
    margin-top: 5px;
}

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

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

.disabled {
    pointer-events: none;
    cursor: default;
    color: gray;
    text-decoration: none;
    opacity: 0.6;
    user-select: none;
}

@media (max-width: 600px) {
    main {
        text-align: justify;
        line-height: 1.45;
    }
}