:root {
  --bg-color-light: white;
  --bg-color-dark: black;
  --bg-color: var(--bg-color-light);
  --bg-color-inverted: var(--bg-color-dark);
}
@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
     --bg-color: var(--bg-color-dark);
     --bg-color-inverted: var(--bg-color-light);
  }
}
:root[data-theme="dark"] {
  --bg-color: var(--bg-color-dark);
  --bg-color-inverted: var(--bg-color-light);
}

body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, arial, sans-serif;
  color: var(--bg-color-inverted);
  background-color: var(--bg-color);
  margin: 0;
  padding: 0;
  line-height: 1.6;
}

body > header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  max-width: 900px;
  margin: 0 auto;
  padding: 1.5rem 1rem;
  flex-wrap: wrap;
  gap: 0.5rem;
}
.site-name {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 1.8rem;
  font-weight: bold;
  color: var(--bg-color-inverted);
  text-decoration: none;
}


.site-logo {
  height: 1.8rem; 
  width: auto;
  filter: brightness(0); 
}

@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) .site-logo {
     filter: brightness(0) invert(1);
  }
}
body > header nav {
  display: flex;
  gap: 2rem;
}
body > header a {
  color: var(--bg-color-inverted);
  text-decoration: none;
  font-size: 1.1rem;
}
body > header a:hover {
  text-decoration: underline;
}

main {
  max-width: 900px;
  margin: 0 auto;
}

.post-title {
  text-align: left;
  margin-bottom: 0.3rem;
  font-size: 2.5rem;
  line-height: 1.2;
}
.post-meta {
  text-align: left;
  color: color-mix(in srgb, var(--bg-color-inverted) 55%, var(--bg-color));
  font-size: 0.85rem;
  margin-top: 0;
  margin-bottom: 1.5rem;
}
.post-content,
.page-content {
  font-size: 1.1rem;
  line-height: 1.65;
  max-width: 42em;
}
.post-content h2,
.post-content h3,
.page-content h2,
.page-content h3 {
  margin-top: 2rem;
  margin-bottom: 0.6rem;
  line-height: 1.3;
}
.post-content a,
.page-content a {
  color: var(--bg-color-inverted);
  text-decoration-thickness: 1px;
  text-underline-offset: 2px;
}
.post-content blockquote,
.page-content blockquote {
  border-left: 3px solid color-mix(in srgb, var(--bg-color-inverted) 25%, var(--bg-color));
  margin-left: 0;
  padding-left: 1rem;
  color: color-mix(in srgb, var(--bg-color-inverted) 75%, var(--bg-color));
}
.post-content img,
.page-content img {
  max-width: 100%;
  height: auto;
}
.page-content h1 {
  font-size: 2.2rem;
  margin-bottom: 1rem;
}

/* Homepage post list */
.post-list {
  display: flex;
  flex-direction: column;
  gap: 2rem;
}
.post-summary {
  padding-bottom: 2rem;
  border-bottom: 1px solid color-mix(in srgb, var(--bg-color-inverted) 12%, var(--bg-color));
}
.post-summary:last-child {
  border-bottom: none;
  padding-bottom: 0;
}
.post-summary h2 {
  margin: 0 0 0.3rem 0;
  font-size: 1.4rem;
}
.post-summary h2 a {
  color: var(--bg-color-inverted);
  text-decoration: none;
}
.post-summary h2 a:hover {
  text-decoration: underline;
}
.post-summary time {
  display: block;
  color: color-mix(in srgb, var(--bg-color-inverted) 55%, var(--bg-color));
  font-size: 0.85rem;
  margin-bottom: 0.6rem;
}
.post-summary p {
  margin: 0;
  color: color-mix(in srgb, var(--bg-color-inverted) 75%, var(--bg-color));
  line-height: 1.5;
}

code {
  font-family: ui-monospace, "SF Mono", Consolas, monospace;
  font-size: 0.9em;
}
:not(pre) > code {
  background: color-mix(in srgb, var(--bg-color-inverted) 8%, var(--bg-color));
  padding: 0.15em 0.4em;
  border-radius: 3px;
}
pre {
  background: color-mix(in srgb, var(--bg-color-inverted) 8%, var(--bg-color));
  color: var(--bg-color-inverted);
  border: 1px solid color-mix(in srgb, var(--bg-color-inverted) 15%, var(--bg-color));
  page-break-inside: avoid;
  font-family: ui-monospace, "SF Mono", Consolas, monospace;
  font-size: 0.9rem;
  line-height: 1.6;
  margin-bottom: 1.6em;
  max-width: 100%;
  overflow: auto;
  padding: 1em 1.5em;
  border-radius: 4px;
  display: block;
  word-wrap: break-word;
}
pre code {
  background: none;
  padding: 0;
}

@media (max-width: 600px) {
  .post-title {
    font-size: 1.9rem;
  }
  .page-content h1 {
    font-size: 1.8rem;
  }
  main {
    padding: 1.5rem 1rem;
  }
}