:root {
  --body-font: "Merriweather", Georgia, "Times New Roman", serif;
  --heading-font: "Happy", system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  --mono-font: "JetBrainsMono", Menlo, Monaco, Consolas, "Liberation Mono", "Courier New", monospace;
  
  /* Core colors (semantic) */
  --text-color: #2d2d2d;
  --background: #fff;
  --heading-color: #242424;
  --accent-color: #fc218a;
  --surface-color: #fafafa;
  --border-color: #ddd;
  --meta-color: rgba(45, 45, 45, 0.6);
  
  /* Dark mode */
  --dark-bg: #1a1a1a;
  --dark-surface: rgba(255, 255, 255, 0.08);
  --dark-border: rgba(255, 255, 255, 0.2);
  
  --base-font-size: calc(1em + 0.32vw);
  --line-height: 1.75;
  
  /* Layout */
  --max-width: 34em; 
  --spacing: 20px;
  --radius: 10px;
  --transition: 150ms;
}

/* Dark theme variables */
[data-theme="dark"] {
  --text-color: #e1e1e1;
  --background: var(--dark-bg);
  --heading-color: #fff;
  --meta-color: rgba(255, 255, 255, 0.4);
  --surface-color: var(--dark-surface);
  --border-color: var(--dark-border);
}

/* Support system preference as default if no theme is explicitly set */
@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    --text-color: #e1e1e1;
    --background: var(--dark-bg);
    --heading-color: #fff;
    --meta-color: rgba(255, 255, 255, 0.4);
    --surface-color: var(--dark-surface);
    --border-color: var(--dark-border);
  }
  
  :root:not([data-theme="light"]) :not(pre) > code {
    color: var(--text-color);
    background: rgba(255, 255, 255, 0.1);
    border: 1px solid var(--border-color);
    box-shadow: none;
  }
  
  :root:not([data-theme="light"]) .invert,
  :root:not([data-theme="light"]) .icon {
    filter: invert(1);
  }
  
  :root:not([data-theme="light"]) .logo_font_light {
    display: none;
  }
  
  :root:not([data-theme="light"]) .logo_font_dark {
    display: block;
  }
}

/* Light mode logo display */
@media (prefers-color-scheme: light) {
  :root:not([data-theme="dark"]) .logo_font_dark {
    display: none;
  }
  
  :root:not([data-theme="dark"]) .logo_font_light {
    display: block;
  }
}

/* Reset */
*,
*::before,
*::after {
  box-sizing: border-box;
}

html,
body,
h1,
h2,
h3,
h4,
h5,
h6,
p,
figure,
blockquote {
  margin: 0;
  padding: 0;
}

/* Base styles */
html {
  font-size: 100%;
  -webkit-text-size-adjust: 100%;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  text-rendering: optimizeLegibility;
}

body {
  font-family: var(--body-font);
  font-weight: 400;
  font-size: var(--base-font-size);
  line-height: var(--line-height);
  color: var(--text-color);
  background: var(--background);
  hyphens: none;
  overflow-wrap: break-word;
  font-variant-ligatures: common-ligatures;
  font-feature-settings: "kern", "liga", "clig", "calt";
  letter-spacing: 0.01em;
}

.container {
  max-width: var(--max-width);
  margin: 0 auto;
}

p { 
  margin-bottom: 1.6em;
}

::selection {
  background: var(--accent-color);
  color: #fff;
}

/* Typography */
h1,
h2,
h3,
h4,
h5,
h6 {
  font-family: var(--heading-font);
  font-weight: 400;
  color: var(--heading-color);
  margin-bottom: 0.8em;
}

h1 {
  font-size: 2.0em;
  line-height: 1.2;
}

h2 {
  font-size: 1.5em;
  margin-top: 70px;
  line-height: 1.3;
}

h3 {
  font-size: 1.2em;
  margin-top: 40px;
}

article h1,
article h2 {
  text-transform: capitalize;
}

/* Links */
a {
  color: var(--accent-color); 
  text-decoration-color: var(--accent-color);
  text-decoration-thickness: 2px;
  text-underline-offset: 0.2em;
  text-decoration-skip-ink: auto;
  text-decoration-style: dotted;
}

a:hover {
  text-decoration-style: solid;
}

/* Header styling */
header {
  width: 100%;
  z-index: 1000;
  top: 0;
  left: 0;
  overflow: hidden;
  background-color: var(--background);
}

.homepage-header {
  align-items: center;
  max-width: var(--max-width);
  margin: 0 auto;
  position: relative;
  padding: 70px 0 100px;
  display: flex;
  gap: 20px;
  justify-content: center;
  font-size: 0.9em;
}

.site-header {
  align-items: center;
  max-width: var(--max-width);
  margin: 0 auto;
  position: relative;
  padding: 70px 0 0;
  display: flex;
  gap: 20px;
  justify-content: center;
}

.homepage-header a,
.site-header a {
  text-decoration: none;
}

.homepage-title {
  font-size: 1.8em; 
}

/* Logo in header */
.logo {
  width: 50px;
  height: 50px;
}

.homepage-header .logo {
  width: 80px;
  height: 80px;
}

header h1,
header h2 {
  margin: 0;
  padding: 0;
}

header h1 {
  font-family: 'Happy-Headline';
  font-size: 1.2em;
}

header h2 {
  font-size: 1.2em;
  color: var(--heading-color);
}

article h1 {
  font-family: 'Happy-Headline';
  color: var(--accent-color);
}

/* Main content */
main {
  margin: 0 auto 4rem;
  max-width: var(--max-width);
  position: relative;
  z-index: 1;
}

main article {
  margin-bottom: 70px;
  overflow-wrap: anywhere;
}

/* Article styles */
.article-header {
  text-align: center;
  padding: 20px 0 1.5rem;
  margin: 0 auto 4em;
  position: relative;
}

.article-header h1 {
  font-size: 2.4em;
  line-height: 1.2;
  max-width: 90%;
  margin: 0 auto;
}

.article-header .subtitle {
  font-size: 1.25rem;
  font-weight: normal;
  margin: 0.75rem auto 1.5rem;
  max-width: 80%;
  color: var(--meta-color);
}

.article-content {
  margin: 0 auto;
}

.post-meta {
  font-size: 1.0rem;
  color: var(--meta-color);
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
}

.homepage .post-meta {
  font-size: 0.8rem;
}

/* Theme toggle button */
.theme-toggle {
  background: none;
  border: 1px solid var(--border-color);
  padding: 0.4em;
  border-radius: 2em;
  cursor: pointer;
  min-width: 1em;
  min-height: 1em;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  color: var(--text-color);
  opacity: 0.8;
  transition: all 0.3s ease;
  margin-left: 10px;
  vertical-align: middle;
}

.theme-toggle:hover {
  opacity: 1;
  border-color: var(--accent-color);
}

.theme-toggle svg {
  width: 1.2em;
  height: 1.2em;
  stroke: currentColor;
  fill: none;
}

.theme-toggle .sun-icon {
  display: block;
}

.theme-toggle .moon-icon {
  display: none;
}

[data-theme="dark"] .theme-toggle .sun-icon {
  display: none;
}

[data-theme="dark"] .theme-toggle .moon-icon {
  display: block;
}

/* Media elements */
img,
video,
iframe {
  max-width: 100%;
  height: auto;
  border-radius: var(--radius);
  display: block;
  margin: 0 auto;
}

/* Make images and media 20% wider than text in articles */
article img,
article video,
article iframe,
article figure {
  width: 120%;
  max-width: 120%;
  position: relative;
  left: 50%;
  transform: translateX(-50%);
}

figure {
  font-size: 0.9em;
  font-style: italic;
  margin: 40px 0;
}

figure img {
  width: 100%;
}

figcaption {
  margin-top: 10px;
  text-align: center;
  color: var(--meta-color);
  font-size: 0.7em;
}

/* Figure captions should remain centered within wider figures */
article figcaption {
  margin-left: 10%;
  margin-right: 10%;
  width: calc(100% - 20%);
}

/* Code blocks */
pre,
code,
kbd,
samp {
  font-variant-ligatures: none;
  font-feature-settings: normal;
  font-family: var(--mono-font);
}

pre {
  display: block;
  border-radius: var(--radius);
  padding: var(--spacing);
  margin: 30px 0;
  background: var(--surface-color);
  overflow-x: auto;
}

/* Make code blocks 20% wider than text in articles */
article pre {
  width: 120%;
  max-width: 120%;
  margin-left: -10%;
  margin-right: -10%;
  box-sizing: border-box;
}

code {
  padding: 2px 4px;
  font-size: 0.9em;
}

pre > code {
  display: block;
  padding: 0;
}

:not(pre) > code {
  color: var(--text-color);
  background: rgba(0, 0, 0, 0.08);
  border-radius: 4px;
  box-shadow: 0 1px 1px rgba(0, 0, 0, 0.125);
}

[data-theme="dark"] :not(pre) > code {
  color: var(--text-color);
  background: rgba(255, 255, 255, 0.1);
  border: 1px solid var(--border-color);
  box-shadow: none;
}

/* Blockquotes */
blockquote {
  border-left: 4px solid var(--accent-color);
  font-style: italic;
  margin: 30px 0;
  padding: 10px 20px;
  border-radius: 0 var(--radius) var(--radius) 0;
}

blockquote > *:last-child {
  margin-bottom: 0;
}

blockquote > *:first-child {
  margin-top: 0;
}

/* Pagination */
.pagination {
  display: flex;
  justify-content: space-between;
  margin: 40px 0;
  font-size: 0.9em;
}

.pagination a {
  display: inline-block;
  padding: 10px 16px;
  border-radius: var(--radius);
  transition: all 0.2s ease;
  text-decoration: none;
  background: var(--surface-color);
}

.pagination a:hover {
  background: var(--accent-color);
  color: #fff;
  border-color: var(--accent-color);
}

/* Info blocks and details */
.info,
details {
  padding: 20px;
  margin: 30px 0;
  background: rgba(0, 0, 0, 0.04);
  border: 2px solid var(--border-color);
  border-radius: var(--radius);
}

.info {
  margin: 40px 0 20px;
  border-style: dotted;
}

.info > *:first-child,
.info > *:last-child {
  margin-top: 0;
  margin-bottom: 0;
}

details summary {
  width: 100%;
  margin: -20px;
  padding: 20px;
  cursor: pointer;
}

[data-theme="dark"] .info,
[data-theme="dark"] details {
  background: var(--dark-surface);
  border-color: var(--border-color);
}

/* Tables */
table {
  width: 100%;
  border-collapse: collapse;
  margin: 20px 0;
}

th,
td {
  border-bottom: 1px solid var(--border-color);
  padding: 8px 4px;
  text-align: left;
}

th {
  font-weight: 600;
}

/* Homepage styles */
.homepage h1 {
  font-size: 1.5em;
  margin-bottom: 0.5em;
}

.homepage a.title {
  text-decoration: none;
}

.homepage a.title:hover {
  text-decoration: underline dotted;
  text-decoration-thickness: 3px;
  text-underline-offset: 4px;
  text-decoration-color: var(--accent-color);
}

.excerpt {
  margin: 10px 0;
}

.excerpt a {
  color: var(--text-color);
  text-decoration-color: var(--text-color);
}

/* Post links and social */
.post-links {
  list-style: none;
  padding: 0;
  margin-top: 40px;
}

.comments {
  list-style: none;
  display: inline;
}

/* Footer */
footer {
  display: flex;
  justify-content: center;
  margin-top: 60px;
  background: var(--surface-color);
  color: var(--text-color);
  transition: background-color 0.3s ease;
  font-size: 0.9em;
}

footer .body {
  max-width: 550px;
  margin: 40px auto;
  padding: 20px;
}

.footer-author {
  display: flex;
  align-items: center;
  margin-bottom: 1.5rem;
  padding-bottom: 1rem;
}

.footer-author-photo {
  width: 80px;
  height: 80px;
  border-radius: 50%;
  object-fit: cover;
  border: 2px solid white; 
  margin-right: 0.75rem;
  flex-shrink: 0;
}

.footer-author-text {
  font-size: 1.6rem;
}

.footer-author-text a {
  color: var(--accent-color);
}

.footer-author-text a:hover {
  color: var(--accent-color);
  text-decoration: underline dotted;
  text-decoration-thickness: 2px;
  text-decoration-color: var(--text-color);
}

.footnotes {
  border-top: 1px dotted var(--border-color);
  font-size: 0.8em;
  background-color: transparent;
}

/* Icons and anchors */
.icon {
  height: 24px;
  width: 24px;
  opacity: 0.4;
  float: left;
  margin: 5px;
  background-repeat: no-repeat;
  transition: opacity var(--transition) ease-in;
}

.icon:hover {
  opacity: 1;
}

.anchor {
  float: left;
  margin-left: -33px;
  margin-top: 3px;
  fill: var(--meta-color);
  opacity: 0.4;
}

.anchor:hover {
  fill: var(--accent-color);
  opacity: 1;
}

/* Social icons */
.social-icons ul {
  display: inline-block;
  padding-left: 0;
}

.social-icons li {
  list-style: none;
  display: inline;
}

/* Dark mode styles */
[data-theme="dark"] .invert,
[data-theme="dark"] .icon {
  filter: invert(1);
}

[data-theme="dark"] .logo_font_light {
  display: none;
}

[data-theme="dark"] .logo_font_dark {
  display: block;
}

/* Mobile styles */
@media (max-width: 920px) {
  .container {
    margin: 0 auto;
    flex-direction: column;
    align-items: center;
    padding: 0 8px;
  }

  header {
    position: relative;
  }

  .site-header {
    position: static;
    padding: 20px 0;
    transform: none !important;
  }

  .header-title {
    display: none;
  }

  main {
    padding-top: 0;
  }

  .article-header {
    padding-bottom: 1.5rem;
    margin: 1em auto 2em;
    position: relative;
  }

  .post-meta {
    display: none;
  }
  
  /* Reduce wider effect on mobile */
  article img,
  article video,
  article iframe,
  article pre,
  article figure {
    width: 110%;
    max-width: 110%;
    position: relative;
    left: 50%;
    transform: translateX(-50%);
  }
  
  article figcaption {
    margin-left: 5%;
    margin-right: 5%;
    width: calc(100% - 10%);
  }

  pre {
    padding: 16px;
    margin: 20px 0px;
  }

  blockquote {
    padding: 10px 15px;
  }
  
  .footer-author-photo {
    width: 40px;
    height: 40px;
    margin-right: 0.5rem;
  }
  
  .footer-author-text {
    font-size: 1.4rem;
  }
}

@media (max-width: 480px) {
  .homepage-header {
    flex-direction: column;
    gap: 10px;
    text-align: center;
    padding: 40px 20px;
  }
  
  .theme-toggle {
    margin-left: 0;
    margin-top: 10px;
  }
  
  /* Back to normal width on very small screens */
  article img,
  article video,
  article iframe,
  article pre,
  article figure {
    width: 100%;
    max-width: 100%;
    margin: 0 auto;
  }
  
  article figcaption {
    margin-left: 0;
    margin-right: 0;
    width: 100%;
  }
}