// Component demo block — live preview + source with a segmented toggle in
// the header. Pure style family (same convention as .hi-code-block): no
// Rust emitter in this crate; downstream emitters (static site generators,
// markdown renderers) output the markup:
//
// <div class="hi-component-demo">
// <div class="hi-component-demo-header">
// <span class="hi-component-demo-badge">mermaid</span>
// <div class="hi-component-demo-toggle" role="tablist">
// <button class="hi-component-demo-toggle-btn hi-component-demo-toggle-active">Preview</button>
// <button class="hi-component-demo-toggle-btn">Source</button>
// </div>
// </div>
// <div class="hi-component-demo-preview">…rendered output…</div>
// <div class="hi-component-demo-source" hidden>…a code block…</div>
// </div>
.hi-component-demo {
background-color: var(--hi-color-bg-container, var(--hi-color-surface));
border: 1px solid var(--hi-color-border);
border-radius: 8px;
margin: 1.5rem 0;
overflow: hidden;
box-shadow: 0 1px 3px rgba(0, 0, 0, 0.1);
}
.hi-component-demo-header {
display: flex;
align-items: center;
justify-content: space-between;
gap: 0.75rem;
padding: 0.4rem 0.75rem;
background-color: var(--hi-color-surface-secondary, var(--hi-secondary-bg));
border-bottom: 1px solid var(--hi-color-border);
}
.hi-component-demo-badge {
font-size: 0.75rem;
font-weight: 600;
color: var(--hi-color-text-secondary);
text-transform: uppercase;
letter-spacing: 0.05em;
font-family: 'Courier New', monospace;
}
// Segmented preview/source toggle (pill variant of the Tabs language).
.hi-component-demo-toggle {
display: inline-flex;
align-items: center;
gap: 2px;
padding: 2px;
background: var(--hi-color-surface-secondary, var(--hi-secondary-bg));
border: 1px solid var(--hi-color-border);
border-radius: 999px;
}
.hi-component-demo-toggle-btn {
appearance: none;
border: none;
background: transparent;
border-radius: 999px;
padding: 0.15rem 0.7rem;
font-size: 0.75rem;
line-height: 1.5;
color: var(--hi-color-text-secondary);
cursor: pointer;
transition: background var(--hi-duration-fast, 0.2s) var(--hi-ease-default, ease),
color var(--hi-duration-fast, 0.2s) var(--hi-ease-default, ease);
&:hover {
color: var(--hi-color-text-primary);
}
&.hi-component-demo-toggle-active {
background: var(--hi-color-bg-container, var(--hi-color-surface));
color: var(--hi-color-text-primary);
font-weight: 600;
box-shadow: 0 1px 2px rgba(0, 0, 0, 0.12);
}
}
.hi-component-demo-preview {
display: flex;
justify-content: center;
align-items: flex-start;
padding: 1.5rem;
overflow-x: auto;
> svg,
> img,
> .mermaid {
max-width: 100%;
}
}
// The source pane hosts a regular code block; strip its outer chrome so it
// sits flush inside the demo container (its own header keeps the copy
// button reachable).
.hi-component-demo-source {
> .hi-code-highlight,
> .hi-code-block {
border: none;
border-radius: 0;
margin: 0;
box-shadow: none;
}
}
// Render-failure notice shown in place of (or above) the preview.
.hi-component-demo-error {
margin: 1rem 1.5rem 0;
padding: 0.75rem 1rem;
background-color: rgba(233, 75, 53, 0.1);
border: 1px solid var(--hi-color-danger);
border-radius: 8px;
color: var(--hi-color-danger);
font-size: 0.875rem;
}