@font-face {
    font-family: "serenity-sans";
    src: url('SerenityOS-katica.ttf');
}

@font-face {
    font-family: "serenity-mono";
    src: url('SerenityOS-csilla.ttf');
}

:root {
    --font-main-serenity: "serenity-sans";
    --font-mono-serenity: 'serenity-mono';
    --font-main: var(--font-main-serenity), -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    --font-mono: var(--font-mono-serenity), 'Monaco', 'Courier New', monospace;
    font-smooth: never;
    --page-background: white;
    --page-background-shadow: rgba(0, 0, 0, 0.3);
    --true-background-start: #afcffe;
    --true-background-end: #ccccff;
    --header-border: #e0e0e0;
    --header-color: #1a1a1a;
    --subtitle-color: #666;
    --link-color: #667eea;
    --link-color-end: #764ba2;
    --link-color-visited: #7654a3;
    --article-header-color: #2a2a2a;
    --article-text-color: #444;
    --about-list-color: #444;
    --stack-header-color: #2a2a2a;
    --stack-table-border: #f0f0f0;
    --stack-text-color: #444;
    --stack-index-color: #999;
    --quote-trivia-color: #cccf;
    --quote-text-color: #666;
    --code-background: #f5f5f5;
}

.use-system-font {
    --font-main: -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    --font-mono: 'Monaco', 'Courier New', monospace;
    font-smooth: unset;
}

@media (prefers-color-scheme: dark) {
    :root {
        --page-background: #1e1e1e;
        --page-background-shadow: rgba(0, 0, 0, 0.7);
        --true-background-start: #2c2c2c;
        --true-background-end: #1a1a1a;
        --header-border: #333;
        --header-color: #f5f5f5;
        --subtitle-color: #aaa;
        --link-color: #8899ff;
        --link-color-end: #bb88ff;
        --link-color-visited: #6b5fa1;
        --article-header-color: #ddd;
        --article-text-color: #ccc;
        --about-list-color: #ccc;
        --stack-header-color: #ddd;
        --stack-table-border: #333;
        --stack-text-color: #ccc;
        --stack-index-color: #666;
        --quote-trivia-color: #cccf;
        --quote-text-color: #aaa;
        --code-background: #2d2d2d;
    }
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    color: var(--article-text-color);
}

body {
    font-family: var(--font-main);
    background: linear-gradient(135deg, var(--true-background-start) 0%, var(--true-background-end) 100%);
    transform: rotate(-1deg);
    min-height: 100vh;
    padding: 40px 20px;
    display: flex;
    align-items: center;
    justify-content: center;
}

body>div>* {
    transform: rotate(1deg);
}

a {
    text-decoration: none;
    color: var(--link-color);
    transition: filter 0.25s, text-shadow 0.25s;
}

a:hover {
    color: var(--link-color-end);
    filter: blur(0.25px);
    text-shadow: 0 0 1px var(--link-color-end);
}

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

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

.page {
    background: var(--page-background);
    max-width: 700px;
    width: 100%;
    padding: 60px;
    box-shadow: 0 20px 60px var(--page-background-shadow);
    position: relative;
}

header {
    margin-bottom: 40px;
    padding-bottom: 20px;
    border-bottom: 1px solid var(--header-border);
}

h1 {
    font-size: 2em;
    font-weight: 600;
    color: var(--header-color);
    margin-bottom: 10px;
}

.subtitle {
    color: var(--subtitle-color);
    font-size: 1em;
    line-height: 1.6;
}

nav {
    margin: 30px 0;
}

nav a {
    margin-right: 20px;
    font-weight: 500;
}

article {
    margin-top: 40px;
}

article h2 {
    font-size: 1.5em;
    margin-bottom: 15px;
    color: var(--article-header-color);
}

article p {
    line-height: 1.7;
    color: var(--article-text-color);
    margin-bottom: 15px;
}

#about ul {
    margin: 15px 0 15px 30px;
}

#about li {
    margin: 8px 0;
    color: var(--about-list-color);
}

#stack {
    margin-top: 40px;
}

#stack h2 {
    font-size: 1.2em;
    margin-bottom: 15px;
    color: var(--stack-header-color);
    font-weight: 600;
}

#stack table {
    width: 100%;
    border-collapse: collapse;
}

#stack td {
    padding: 8px 12px;
    border-bottom: 1px solid var(--stack-table-border);
    color: var(--stack-text-color);
}

#stack td:first-child {
    color: var(--stack-index-color);
    width: 40%;
    font-size: 0.9em;
}

#stack tr:last-child td {
    border-bottom: none;
}

article+article {
    margin-top: 60px;
    padding-top: 40px;
    border-top: 1px solid var(--stack-table-border);
}

code {
    background: var(--code-background);
    padding: 2px 6px;
    border-radius: 3px;
    font-family: var(--font-mono);
    font-size: 0.9em;
}

.meta {
    color: var(--stack-index-color);
    font-size: 0.9em;
    margin-bottom: 15px;
}

footer {
    margin-top: 60px;
    padding-top: 40px;
    border-top: 1px solid var(--stack-table-border);
}

.quote {
    color: var(--quote-text-color);
}

.quote-text {
    margin-bottom: 8px;
    line-height: 1.6;
}

.quote-text::before, .quote-text::after {
    content: '"';
    vertical-align: top;
    color: var(--quote-trivia-color);
}


.quote-author {
    text-align: right;
    font-size: 0.9em;
    color: var(--stack-index-color);
}

.font-controls {
    position: absolute;
    top: 20px;
    right: 20px;
    display: flex;
    flex-direction: column;
    align-items: flex-end;
    gap: 8px;
    font-size: 0.85em;
}

.font-toggle-label {
    display: flex;
    align-items: center;
    gap: 5px;
    cursor: pointer;
    font-size: 0.85em;
    color: var(--article-text-color);
}

.font-toggle-label:has(#system-font-toggle:not(:checked)) {
    font-family: sans-serif;
}

.font-toggle-label:has(#system-font-toggle:checked) {
    font-family: var(--font-main-serenity), var(--font-main)
}

#about-font-btn {
    background: transparent;
    border: 1px solid var(--header-border);
    padding: 4px 8px;
    cursor: pointer;
    font-family: var(--font-main);
    color: var(--article-text-color);
    font-size: 0.85em;
    border-radius: 3px;
}

#about-font-btn:hover {
    background-color: var(--code-background);
}

.dialog {
    display: none;
    position: fixed;
    z-index: 1;
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
    overflow: auto;
    background-color: rgba(0,0,0,0.4);
}

.dialog-content {
    background-color: var(--page-background);
    margin: 15% auto;
    padding: 20px;
    border: 1px solid var(--stack-table-border);
    width: 80%;
    max-width: 600px;
    position: relative;
    box-shadow: 0 5px 15px var(--page-background-shadow);
}

.dialog-content h3 {
    color: var(--header-color);
    margin-bottom: 15px;
}

.dialog-content p, .dialog-content ul {
    margin-bottom: 15px;
    color: var(--article-text-color);
    line-height: 1.5;
}

.dialog-content ul {
    margin-left: 20px;
}

.close-btn {
    color: var(--stack-index-color);
    position: absolute;
    right: 20px;
    top: 10px;
    font-size: 28px;
    font-weight: bold;
    cursor: pointer;
}

.close-btn:hover {
    color: var(--article-text-color);
}
