/* Clean, low-CSS minimalist stylesheet */
:root {
  --bg: #ffffff;
  --text: #1a1a1a;
  --meta: #666666;
  --border: #e0e0e0;
  --link: #0066cc;
  --font-sans: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  --font-mono: ui-monospace, SFMono-Regular, Consolas, "Liberation Mono", Menlo, monospace;
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #121212;
    --text: #e0e0e0;
    --meta: #888888;
    --border: #2c2c2c;
    --link: #66b2ff;
  }
}

* {
  box-sizing: border-box;
}

html, body {
  margin: 0;
  padding: 0;
  background-color: var(--bg);
  color: var(--text);
  font-family: var(--font-sans);
  font-size: 16px;
  line-height: 1.6;
}

.container {
  max-width: 780px;
  margin: 0 auto;
  padding: 2rem 1rem;
}

.site-header {
  margin-bottom: 2rem;
  padding-bottom: 0.75rem;
  border-bottom: 1px solid var(--border);
}

.site-title {
  font-size: 1.15rem;
  font-weight: 600;
  color: var(--text);
  text-decoration: none;
  font-family: var(--font-mono);
}

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

.file-list {
  list-style: none;
  margin: 0;
  padding: 0;
}

.file-list li {
  padding: 1rem 0;
  border-bottom: 1px solid var(--border);
}

.file-list li.empty,
.file-list li.loading {
  color: var(--meta);
  font-style: italic;
  padding: 2rem 0;
}

.file-row {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 1rem;
}

.file-title {
  font-size: 1.15rem;
  font-weight: 600;
  text-decoration: none;
  display: inline-block;
  margin-bottom: 0.25rem;
}

.file-title:hover {
  text-decoration: underline;
}

.raw-tag {
  font-size: 0.8rem;
  font-family: var(--font-mono);
  color: var(--meta);
  text-decoration: none;
  border: 1px solid var(--border);
  padding: 0.15rem 0.4rem;
  border-radius: 3px;
  white-space: nowrap;
}

.raw-tag:hover {
  color: var(--text);
  border-color: var(--text);
  text-decoration: none;
}

.file-meta {
  font-size: 0.85rem;
  color: var(--meta);
}

.reader-nav {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 2rem;
  padding-bottom: 0.75rem;
  border-bottom: 1px solid var(--border);
  font-size: 0.95rem;
}

.reader-nav a {
  color: var(--meta);
  text-decoration: none;
}

.reader-nav a:hover {
  color: var(--text);
  text-decoration: underline;
}

.doc-header {
  margin-bottom: 2rem;
}

.doc-title {
  font-size: 1.75rem;
  line-height: 1.3;
  margin: 0 0 0.5rem 0;
  color: var(--text);
}

.doc-meta {
  font-size: 0.9rem;
  color: var(--meta);
}

.doc-content {
  font-size: 1.05rem;
  line-height: 1.75;
  word-break: break-word;
  color: var(--text);
}

.doc-content p,
.doc-content li,
.doc-content blockquote {
  color: var(--text);
}

.doc-content h1,
.doc-content h2,
.doc-content h3,
.doc-content h4,
.doc-content h5,
.doc-content h6 {
  color: var(--text);
  margin-top: 1.75rem;
  margin-bottom: 0.5rem;
  line-height: 1.35;
}

.doc-content img {
  max-width: 100%;
  height: auto;
}

.doc-content ol,
.doc-content ul {
  padding-left: 1.5rem;
  margin: 1rem 0;
}

.doc-content li {
  margin-bottom: 0.4rem;
}

.doc-content table {
  width: 100%;
  border-collapse: collapse;
  margin: 1.5rem 0;
  font-size: 0.95em;
}

.doc-content th,
.doc-content td {
  padding: 0.5rem 0.75rem;
  border: 1px solid var(--border);
  text-align: left;
}

.doc-content th {
  background-color: rgba(128, 128, 128, 0.08);
  font-weight: 600;
}

.doc-content pre,
.doc-content code {
  font-family: var(--font-mono);
  font-size: 0.9em;
}

.doc-content pre {
  padding: 0.75rem 1rem;
  background: rgba(128, 128, 128, 0.1);
  overflow-x: auto;
  border-radius: 4px;
}

.doc-content blockquote {
  margin: 1rem 0;
  padding-left: 1rem;
  border-left: 3px solid var(--border);
  color: var(--meta);
}

.doc-content hr {
  border: 0;
  border-top: 1px solid var(--border);
  margin: 2rem 0;
}