:root {
  --bg: #ffffff;
  --fg: #1a1a1a;
  --muted: #6b7280;
  --accent: #b7410e;
  --border: #e5e7eb;
  --code-bg: #2b303b;
}
:root[data-theme="dark"] {
  --bg: #111318;
  --fg: #e5e7eb;
  --muted: #9ca3af;
  --accent: #f97316;
  --border: #2a2e37;
}
@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    --bg: #111318;
    --fg: #e5e7eb;
    --muted: #9ca3af;
    --accent: #f97316;
    --border: #2a2e37;
  }
}

* { box-sizing: border-box; }
body {
  margin: 0 auto;
  max-width: 44rem;
  padding: 0 1.25rem 4rem;
  font: 17px/1.65 -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  background: var(--bg);
  color: var(--fg);
}
a { color: var(--accent); text-decoration: none; }
a:hover { text-decoration: underline; }

.site-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 1.5rem 0 2rem;
}
.site-title { font-weight: 700; font-size: 1.2rem; color: var(--fg); }
.site-header nav { display: flex; gap: 1rem; align-items: center; }
#theme-toggle {
  background: none;
  border: 1px solid var(--border);
  border-radius: 6px;
  color: var(--fg);
  cursor: pointer;
  padding: 0.15rem 0.5rem;
  font-size: 1rem;
}

.meta { color: var(--muted); font-size: 0.85rem; }
.tag { color: var(--muted); }
.post-item { margin-bottom: 2rem; }
.post-item h2 { margin: 0 0 0.25rem; font-size: 1.25rem; }
.post-item h2 a { color: var(--fg); }
.post-item p { margin: 0.25rem 0; }

.post h1 { line-height: 1.25; margin-bottom: 0.25rem; }
.post-body img { max-width: 100%; }
.post-body pre {
  padding: 1rem;
  border-radius: 8px;
  overflow-x: auto;
  background: var(--code-bg);
  font-size: 0.85rem;
  line-height: 1.5;
}
.post-body code { font-family: ui-monospace, SFMono-Regular, Menlo, monospace; }
.post-body :not(pre) > code {
  background: color-mix(in srgb, var(--fg) 8%, transparent);
  padding: 0.1em 0.35em;
  border-radius: 4px;
  font-size: 0.85em;
}
.post-body blockquote {
  margin: 1rem 0;
  padding: 0.25rem 1rem;
  border-left: 3px solid var(--accent);
  color: var(--muted);
}
.post-body table { border-collapse: collapse; width: 100%; }
.post-body th, .post-body td { border: 1px solid var(--border); padding: 0.4rem 0.6rem; }

.search { margin-bottom: 2.5rem; position: relative; }
#search-input {
  width: 100%;
  padding: 0.6rem 0.9rem;
  border: 1px solid var(--border);
  border-radius: 8px;
  background: var(--bg);
  color: var(--fg);
  font-size: 1rem;
}
#search-results {
  list-style: none;
  margin: 0.5rem 0 0;
  padding: 0;
  border: 1px solid var(--border);
  border-radius: 8px;
  position: absolute;
  width: 100%;
  background: var(--bg);
  z-index: 10;
}
#search-results li { padding: 0.5rem 0.9rem; border-bottom: 1px solid var(--border); }
#search-results li:last-child { border-bottom: none; }
#search-results .desc { display: block; color: var(--muted); font-size: 0.85rem; }

.site-footer { margin-top: 4rem; color: var(--muted); font-size: 0.85rem; }