:root {
  color-scheme: light dark;
  --font-text: system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  --font-monospace: ui-monospace, "Cascadia Code", "Source Code Pro", Menlo, Consolas, monospace;
  --font-ui-small: 12px;
  --font-smaller: 11px;
  --background-primary: #ffffff;
  --background-secondary: #f6f7f8;
  --background-secondary-alt: #eceff1;
  --background-modifier-border: #d8dee4;
  --background-modifier-hover: rgba(0, 0, 0, 0.05);
  --background-modifier-error: rgba(255, 0, 0, 0.08);
  --background-modifier-error-hover: rgba(255, 0, 0, 0.12);
  --text-normal: #1b1f23;
  --text-muted: #57606a;
  --text-accent: #0969da;
  --text-error: #cf222e;
  --text-on-accent: #ffffff;
  --interactive-accent: #0969da;
  --color-accent: var(--interactive-accent);
  --color-green: #3ba55c;
  --color-green-rgb: 59, 165, 92;
  --color-yellow: #faa81a;
  --color-yellow-rgb: 250, 168, 26;
  --color-red: #f23c3c;
  --color-red-rgb: 242, 60, 60;
  --color-orange: #e9973f;
  --color-orange-rgb: 233, 151, 63;
  --color-purple: #a371f7;
  --color-purple-rgb: 163, 113, 247;
  --demo-code-bg: #f6f8fa;
  --demo-code-fg: #1b1f23;
  --code-background: var(--background-secondary);
}

@media (prefers-color-scheme: dark) {
  :root {
    --background-primary: #0d1117;
    --background-secondary: #161b22;
    --background-secondary-alt: #21262d;
    --background-modifier-border: #30363d;
    --background-modifier-hover: rgba(255, 255, 255, 0.06);
    --background-modifier-error: rgba(255, 80, 80, 0.12);
    --background-modifier-error-hover: rgba(255, 80, 80, 0.18);
    --text-normal: #e6edf3;
    --text-muted: #8b949e;
    --text-accent: #58a6ff;
    --text-error: #ff7b72;
    --interactive-accent: #1f6feb;
    --color-accent: var(--interactive-accent);
    --demo-code-bg: #161b22;
    --demo-code-fg: #e6edf3;
    --code-background: var(--background-secondary-alt);
  }
}

* {
  box-sizing: border-box;
}

html,
body {
  margin: 0;
  padding: 0;
  font-family: var(--font-text);
  background: var(--background-primary);
  color: var(--text-normal);
}

.demo-header {
  border-bottom: 1px solid var(--background-modifier-border);
  background: var(--background-secondary);
}

.demo-header-inner {
  max-width: min(1200px, 100%);
  margin: 0 auto;
  padding: 20px 24px;
}

.demo-header h1 {
  margin: 0 0 6px;
  font-size: 1.5rem;
}

.demo-header p {
  margin: 0;
  color: var(--text-muted);
  font-size: 0.95rem;
}

.demo-main {
  max-width: min(1200px, 100%);
  margin: 0 auto;
  padding: 24px 20px 48px;
  line-height: 1.6;
}

.demo-main > .demo-layout {
  display: grid;
  grid-template-columns: minmax(200px, 240px) minmax(0, 1fr);
  gap: 28px 32px;
  align-items: start;
  width: 100%;
}

.demo-sidebar {
  position: sticky;
  top: 12px;
  max-height: calc(100vh - 24px);
  overflow: auto;
  padding: 14px 12px;
  background: var(--background-secondary);
  border: 1px solid var(--background-modifier-border);
  border-radius: 10px;
  font-size: 0.8125rem;
  line-height: 1.45;
}

.demo-sidebar-title {
  margin: 0 0 10px;
  padding: 0 8px;
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: var(--text-muted);
}

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

.demo-sidebar-nav a {
  display: block;
  padding: 5px 8px;
  color: var(--text-muted);
  text-decoration: none;
  border-radius: 6px;
  border-left: 2px solid transparent;
  transition:
    color 0.15s ease,
    background-color 0.15s ease,
    border-color 0.15s ease;
}

.demo-sidebar-nav a:hover {
  color: var(--text-normal);
  background: var(--background-modifier-hover);
}

.demo-sidebar-nav a.is-active {
  color: var(--text-accent);
  background: var(--background-modifier-hover);
  border-left-color: var(--interactive-accent);
  font-weight: 600;
}

.demo-body {
  min-width: 0;
}

.demo-intro {
  margin-bottom: 8px;
}

.demo-intro h1 {
  margin-top: 0;
}

.demo-footer {
  max-width: min(1200px, 100%);
  margin: 0 auto;
  padding: 0 24px 40px;
  color: var(--text-muted);
  font-size: 0.9rem;
}

@media (max-width: 960px) {
  .demo-main > .demo-layout {
    grid-template-columns: 1fr;
    gap: 20px;
  }

  .demo-sidebar {
    position: static;
    max-height: none;
  }

  .demo-sidebar-list {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(140px, 1fr));
    gap: 4px 8px;
  }
}

.demo-main h1,
.demo-main h2,
.demo-main h3,
.demo-main a[id] {
  scroll-margin-top: 72px;
}

.plume-demo-content a[id]:empty {
  display: block;
  height: 0;
  margin: 0;
  padding: 0;
}

.demo-main hr {
  border: none;
  border-top: 1px solid var(--background-modifier-border);
  margin: 32px 0;
}

.demo-icon-fallback {
  display: inline-block;
  width: 1em;
  text-align: center;
  opacity: 0.6;
}

.plume-demo-content pre {
  overflow-x: auto;
}

/* Code blocks: match page theme (override highlight.js github light on dark OS) */
.plume-demo-content pre:has(> code.hljs),
.plume-demo-content .vp-code-tree-panel-content > pre,
.plume-demo-content .vp-code-block-title > pre,
.plume-demo-content .vp-card-masonry-cell > pre,
.plume-demo-content .markdown-preview-section pre {
  background-color: var(--demo-code-bg) !important;
  color: var(--demo-code-fg);
  border: 1px solid var(--background-modifier-border);
  border-radius: 6px;
}

.plume-demo-content pre code.hljs {
  background: transparent !important;
  color: inherit;
}

.plume-demo-content :not(pre) > code.hljs {
  background-color: var(--background-modifier-hover);
  padding: 0.1em 0.35em;
  border-radius: 4px;
}

.plume-demo-content table {
  width: 100%;
  border-collapse: collapse;
  margin: 0;
}

.plume-demo-content th,
.plume-demo-content td {
  border: 1px solid var(--background-modifier-border);
  padding: 6px 10px;
  text-align: left;
}

.plume-demo-content .vp-flex table {
  font-size: 14px;
}

.plume-demo-content .vp-flex-item {
  align-self: stretch;
}

.plume-demo-content .vp-timeline-title p {
  margin: 0;
  display: inline;
}

.demo-example {
  margin: 28px 0 40px;
  border: 1px solid var(--background-modifier-border);
  border-radius: 10px;
  overflow: hidden;
  background: var(--background-primary);
}

.demo-source-panel {
  border-bottom: 1px solid var(--background-modifier-border);
  background: var(--background-secondary);
}

.demo-source-panel summary {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 10px 14px;
  cursor: pointer;
  font-weight: 600;
  font-size: 0.9rem;
  list-style: none;
}

.demo-source-panel summary::-webkit-details-marker {
  display: none;
}

.demo-copy-source {
  margin-left: auto;
  padding: 2px 10px;
  font-size: 0.8rem;
  font-weight: 500;
  border: 1px solid var(--background-modifier-border);
  border-radius: 6px;
  background: var(--background-primary);
  color: var(--text-muted);
  cursor: pointer;
}

.demo-copy-source:hover {
  color: var(--text-normal);
  border-color: var(--text-muted);
}

.demo-source-code {
  padding: 0 12px 12px;
}

.demo-source-pre {
  margin: 0;
  padding: 12px 14px;
  border-radius: 8px;
  background: var(--demo-code-bg) !important;
  color: var(--demo-code-fg);
  border: 1px solid var(--background-modifier-border);
  overflow-x: auto;
  font-size: 13px;
  line-height: 1.55;
}

.demo-source-pre code.hljs {
  background: transparent !important;
  color: inherit;
}

.demo-source-plain {
  display: block;
  font-family: var(--font-monospace);
  white-space: pre;
  tab-size: 2;
  color: inherit;
}

.demo-preview-label {
  padding: 10px 14px 0;
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--text-muted);
}

.demo-preview {
  padding: 8px 20px 22px;
}

.demo-preview > h2 {
  margin-top: 0;
}