:root {
  --bg: #111;
  --text: #bbb;
  --heading: #fff;
  --post-title: #fff;
  --gold: #c8a865;
  --date: #555;
  --hr: #333;
  --article-heading: #ddd;
  --back-link: #c8a865;
  --toggle: #666;
}

:root.light {
  --bg: #fff;
  --text: #333;
  --heading: #111;
  --post-title: #111;
  --gold: #8a6520;
  --date: #aaa;
  --hr: #ddd;
  --article-heading: #222;
  --back-link: #8a6520;
  --toggle: #999;
}

* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

body {
  font-family: Georgia, serif;
  font-size: 19px;
  line-height: 1.85;
  color: var(--text);
  background: var(--bg);
  max-width: 680px;
  margin: 0 auto;
  padding: 60px 30px;
  transition: background 0.2s, color 0.2s;
}

/* ── Toggle button ── */

.topbar {
  text-align: right;
  margin-bottom: 1.5em;
}

#theme-toggle {
  background: none;
  border: none;
  color: var(--toggle);
  font-size: 1em;
  cursor: pointer;
  padding: 4px;
  opacity: 0.7;
  transition: opacity 0.2s;
}

#theme-toggle:hover {
  opacity: 1;
}

/* ── Homepage ── */

.site-title {
  text-align: center;
  font-size: 2em;
  font-weight: bold;
  color: var(--heading);
  margin-bottom: 0.8em;
}

hr {
  border: none;
  border-top: 1px solid var(--hr);
  margin: 1.2em 0;
}

.tag-cloud {
  text-align: center;
  padding: 0.8em 0;
  line-height: 2.6;
}

.tag-cloud a {
  color: var(--gold);
  text-decoration: none;
  margin: 0 0.5em;
}

.tag-cloud a:hover {
  text-decoration: underline;
}

.post-list {
  margin-top: 2em;
}

.post-item {
  margin-bottom: 1.6em;
}

.post-date {
  font-size: 0.75em;
  color: var(--date);
  letter-spacing: 0.03em;
}

.post-item a {
  color: var(--post-title);
  text-decoration: none;
  font-size: 1.05em;
  font-weight: bold;
  display: block;
}

.post-item a:hover {
  text-decoration: underline;
}

/* ── Single post ── */

.back {
  margin-bottom: 2.5em;
}

.back a {
  color: var(--back-link);
  text-decoration: none;
  font-size: 0.85em;
}

.back a:hover {
  text-decoration: underline;
}

.post-header {
  text-align: center;
  margin-bottom: 2.5em;
}

.post-header h1 {
  color: var(--heading);
  font-size: 1.6em;
  margin-bottom: 0.3em;
}

.post-header .post-date {
  font-size: 0.8em;
  color: var(--date);
}

article p {
  margin-bottom: 1.2em;
}

article h2 {
  color: var(--article-heading);
  font-size: 1.15em;
  margin: 2em 0 0.5em;
}

article h3 {
  color: var(--article-heading);
  font-size: 1em;
  margin: 1.5em 0 0.4em;
}

article a {
  color: var(--gold);
  text-decoration: underline;
  text-underline-offset: 2px;
}

article ul,
article ol {
  padding-left: 1.6em;
  margin-bottom: 1.2em;
}

article li {
  margin-bottom: 0.4em;
}

article img {
  max-width: 60%;
  height: auto;
  margin: 1.5em 0;
  display: block;
}