:root {
  color-scheme: dark;
  --bg: #050505;
  --fg: #cfcfcf;
  --muted: #9e9e9e;
  --border: #f5f5f5;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  background: var(--bg);
  color: var(--fg);
  font-family: "JetBrains Mono", ui-monospace, SFMono-Regular, Menlo, Monaco,
    Consolas, "Liberation Mono", "Courier New", monospace;
  line-height: 1.6;
}

.page {
  max-width: 820px;
  padding: 48px 32px 64px;
  margin: 0;
  text-align: left;
  position: relative;
  will-change: transform, filter, opacity;
}

.site-header {
  display: flex;
  flex-direction: column;
  gap: 16px;
  padding-bottom: 24px;
  border-bottom: 1px solid var(--border);
}

.site-header h1 {
  margin: 0 0 8px;
  font-size: 28px;
  font-weight: 600;
}

.site-header p {
  margin: 0;
  color: var(--muted);
}

.site-nav {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.section {
  padding: 24px 0;
  border-bottom: 1px solid var(--border);
}

.section:last-of-type {
  border-bottom: none;
}

.section h2 {
  margin: 0 0 12px;
  font-size: 18px;
  font-weight: 600;
}

.section p {
  margin: 0;
}

.list {
  list-style: none;
  padding: 0;
  margin: 0;
  display: grid;
  gap: 12px;
}

.card-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 12px;
  margin-top: 10px;
}

.md-card {
  display: grid;
  gap: 6px;
  padding: 12px;
  border: 1px solid var(--border);
  text-decoration: none;
  color: var(--fg);
}

.md-card-title {
  color: var(--fg);
  font-weight: 600;
  letter-spacing: 0.2px;
}

.md-card-desc {
  color: var(--muted);
  font-size: 12px;
  line-height: 1.4;
  min-height: 2.8em;
}

.md-card:focus-visible,
.md-card:hover {
  background: var(--fg);
  color: var(--bg);
}

.md-card:focus-visible .md-card-title,
.md-card:hover .md-card-title {
  color: var(--bg);
}

.md-card:focus-visible .md-card-desc,
.md-card:hover .md-card-desc {
  color: rgba(0, 0, 0, 0.65);
}

.hint {
  margin-top: 10px;
}

.disclaimer {
  border: 2px solid #b00024;
  padding: 14px;
  color: #b00024;
  display: grid;
  gap: 8px;
}

.disclaimer strong {
  font-size: 16px;
  letter-spacing: 0.4px;
}

.disclaimer p {
  margin: 0;
  color: rgba(176, 0, 36, 0.9);
}

.md-doc {
  padding-top: 8px;
}

.md-doc h2,
.md-doc h3,
.md-doc h4 {
  margin: 18px 0 10px;
  font-weight: 600;
}

.md-doc p {
  margin: 0 0 12px;
}

.md-doc ul {
  margin: 0 0 12px;
  padding-left: 18px;
}

.md-doc code {
  border: 1px solid var(--border);
  padding: 1px 5px;
}

.md-doc pre {
  border: 1px solid var(--border);
  padding: 12px;
  overflow: auto;
}

.md-doc pre code {
  border: none;
  padding: 0;
}

.md-doc blockquote {
  margin: 0 0 12px;
  padding: 10px 12px;
  border: 1px solid var(--border);
  color: var(--muted);
}

.label {
  display: inline-block;
  padding: 2px 6px;
  border: 1px solid var(--border);
  margin-right: 8px;
}

.post {
  border: 1px solid var(--border);
  padding: 16px;
  display: grid;
  gap: 12px;
}

.post-meta {
  display: flex;
  justify-content: space-between;
  gap: 16px;
  color: var(--muted);
  font-size: 12px;
}

.btn {
  display: inline-block;
  padding: 6px 12px;
  border: 1px solid var(--border);
  color: var(--fg);
  text-decoration: none;
  transition: background 120ms ease, color 120ms ease;
}

.btn:hover,
.btn:focus-visible {
  background: var(--fg);
  color: var(--bg);
}

.muted {
  color: var(--muted);
}

.empty {
  border: 1px dashed var(--border);
  padding: 16px;
  color: var(--muted);
}

.steps {
  margin: 16px 0 0;
  padding-left: 18px;
  color: var(--muted);
  display: grid;
  gap: 8px;
}

.site-footer {
  margin-top: 24px;
  color: var(--muted);
  font-size: 12px;
}

@media (max-width: 600px) {
  .page {
    padding: 32px 16px 48px;
  }
}