svelte-kit-vice/src/uix/eidos/components/command/command.css

/*
 * Command palette recipe — ⌘K command bar.
 *
 *   [data-command]              → root container (input + list)
 *   [data-command-input]        → search input
 *   [data-command-list]         → scrolling listbox
 *   [data-command-viewport]     → optional inner scroller (if List wraps it)
 *   [data-command-empty]        → "no results" message
 *   [data-command-loading]      → progress bar slot
 *   [data-command-group]        → group container
 *   [data-command-group-heading]→ group label
 *   [data-command-group-items]  → group items wrapper
 *   [data-command-item]         → row (highlighted via data-selected)
 *   [data-command-link-item]    → anchor-style row
 *   [data-command-separator]    → 1px divider
 *   [data-command-item-icon]    → leading glyph slot (eidos sub-part)
 *   [data-command-item-shortcut]→ trailing kbd hint slot (eidos sub-part)
 *
 * Sizes — sm | md | lg via `data-size` on [data-command].
 * Inside `<Command.Dialog>` the panel chrome comes from dialog.css; this
 * recipe only paints the inner palette.
 */

[data-command] {
	--_command-input-px: var(--space-3);
	--_command-input-font-size: var(--font-size-md);
	--_command-item-px: var(--space-3);
	--_command-item-font-size: var(--font-size-md);
	/* Radius of the surface the palette lives in — the concentric reference for
	   the input (which sits at the surface's top corners). Inline that surface is
	   the command's own panel (radius-lg, matching the combobox popup). Inside
	   <Command.Dialog> it's overridden to the dialog panel's radius so the input
	   corner stays parallel to the ACTUAL outer corner. */
	--_command-radius: var(--radius-lg);

	display: flex;
	flex-direction: column;
	inline-size: 100%;
	min-inline-size: 0;
	/* Typography is anchored on the root so EVERY descendant (item, group
	   heading, icon, shortcut) inherits the UI font + leading regardless of
	   context. Inside <Command.Dialog> the palette is portaled, which severs the
	   ambient page-font inheritance — without this the rows fall back to the
	   browser serif (Times New Roman). Self-contained typography keeps the
	   portaled dialog identical to the inline palette. */
	font-family: var(--font-ui);
	line-height: var(--leading-ui);
	color: var(--color-content-primary);
	border: var(--border-width) solid var(--color-border-default);
	border-radius: var(--_command-radius);
	background: var(--color-surface-overlay);
	box-shadow: var(--depth-overlay-shadow), var(--depth-overlay-halo);
	overflow: hidden;
	outline: none;
}

/* Inside a Dialog (`<Command.Dialog>`) the dialog panel IS the surface — strip
   ONLY the command's own panel chrome (border / bg / shadow) so the two panels
   don't nest. Everything else (the boxed input, the list padding, the type
   scale, the item rows) is inherited unchanged, so the palette is identical to
   the inline <Command>, just hosted inside the dialog panel. */
[data-dialog-content] [data-command] {
	/* The visible surface is now the dialog panel — adopt ITS radius so the input
	   stays concentric with the actual outer corner the user sees. */
	--_command-radius: var(--dialog-content-radius);
	border: 0;
	border-radius: 0;
	background: transparent;
	box-shadow: none;
}

/* The command brings its own internal spacing (input margin + list padding), so
   the dialog content adds none of its own. */
[data-dialog-content]:has([data-command]) {
	padding: 0;
}

/* Reserve room at the input's inline-end so the placeholder / query never runs
   under the floating close — which sits at the dialog's default top-right inset,
   centred on the boxed input row. */
[data-dialog-content] [data-command-input] {
	padding-inline-end: calc(var(--control-height-sm) + var(--space-2));
}

[data-command][data-size='sm'] {
	--_command-input-px: var(--space-2);
	--_command-input-font-size: var(--font-size-sm);
	--_command-item-px: var(--space-2);
	--_command-item-font-size: var(--font-size-sm);
}

[data-command][data-size='lg'] {
	--_command-input-px: var(--space-4);
	--_command-input-font-size: var(--font-size-lg);
	--_command-item-px: var(--space-4);
	--_command-item-font-size: var(--font-size-lg);
}

/* ── Input ──────────────────────────────────────────────────────────── */

/* Boxed search field — same field treatment as the Select trigger (border +
   radius + surface bg + focus ring), inset from the panel edges, instead of the
   old flush borderless input with a bottom-rule separator. */
[data-command-input] {
	box-sizing: border-box;
	/* Same density-driven block padding as the options (archetype) so the input
	   row and the option rows share one vertical rhythm. */
	padding-block: var(--space-1-5);
	margin: var(--space-2);
	padding-inline: var(--_command-input-px);
	border: var(--border-width) solid var(--color-border-default);
	border-radius: var(--radius-md);
	background: var(--color-surface-default);
	color: var(--color-content-primary);
	font-family: var(--font-ui);
	font-size: var(--_command-input-font-size);
	line-height: var(--leading-ui);
	outline: 0;
	transition:
		border-color var(--duration-fast) var(--ease-default),
		box-shadow var(--duration-fast) var(--ease-default);
}

[data-command-input]:focus-visible {
	border-color: var(--color-primary-border);
	box-shadow: var(--focus-ring);
}

[data-command-input]::placeholder {
	color: var(--color-content-muted);
}

/* ── Loading progress (slim bar under Input) ───────────────────────── */

[data-command-loading] {
	display: block;
	block-size: 2px;
	background: linear-gradient(
		to right,
		var(--color-primary-solid) 0%,
		var(--color-primary-solid) var(--_command-loading-progress, 0%),
		transparent var(--_command-loading-progress, 0%)
	);
}

/* ── List + Viewport ──────────────────────────────────────────────── */

/* The soma list is a transparent marker; the composed <ScrollArea autosize>
   (command-list.svelte) owns the scroll + the design-system scrollbar, shared
   with select / combobox so the scroll chrome (incl. its colour) is common. */
[data-command-list] {
	display: contents;
}

[data-command-list] [data-scroll-area-viewport] {
	--scroll-area-auto-max-block: min(60vh, 24rem);
	display: flex;
	flex-direction: column;
	gap: var(--space-1);
	padding-inline: var(--space-1);
	padding-block-end: var(--space-1);
	overscroll-behavior: contain;
}

/* Reserve the scrollbar footprint + a matching inline gap when it shows. */
[data-command-list]
	[data-scroll-area]:has(> [data-scroll-area-scrollbar][data-orientation='vertical'])
	> [data-scroll-area-viewport] {
	padding-inline-end: calc(var(--space-1) + var(--space-3-5));
}

[data-command-viewport] {
	display: flex;
	flex-direction: column;
	gap: var(--space-1);
	max-block-size: min(60vh, 24rem);
	padding: var(--space-1);
	overflow: auto;
	overscroll-behavior: contain;
}

/* ── Group / GroupHeading / GroupItems ────────────────────────────── */

[data-command-group] {
	display: grid;
	gap: var(--space-1);
}

[data-command-group-heading] {
	padding-block: var(--space-1);
	padding-inline: var(--_command-item-px);
	color: var(--color-content-muted);
	font-size: var(--font-size-xs);
	font-weight: 500;
	text-transform: uppercase;
	letter-spacing: var(--tracking-caps);
}

[data-command-group-items] {
	display: grid;
	gap: 1px;
}

/* ── Item / LinkItem ──────────────────────────────────────────────── */

[data-command-item],
[data-command-link-item] {
	display: flex;
	align-items: center;
	gap: var(--space-2);
	padding-inline: var(--_command-item-px);
	/* Height + block padding come from the canonical archetype (density-driven
	   `--space-*`). Radius concentric with the panel: panel radius − inset. */
	border-radius: calc(var(--radius-md) - var(--space-1));
	color: var(--color-content-primary);
	font-size: var(--_command-item-font-size);
	line-height: var(--leading-ui);
	text-decoration: none;
	cursor: pointer;
	user-select: none;
	transition:
		background var(--duration-fast) var(--ease-default),
		color var(--duration-fast) var(--ease-default);
}

/* The active-row highlight comes from the canonical archetype layer
   (archetypes.css), shared with select / combobox / listbox / menus. */

[data-command-item][data-disabled],
[data-command-link-item][data-disabled] {
	cursor: default;
	opacity: var(--opacity-disabled);
}

/* ── Item sub-parts (eidos-only) ──────────────────────────────────── */

[data-command-item-icon] {
	display: inline-flex;
	flex: 0 0 auto;
	align-items: center;
	justify-content: center;
	inline-size: 1.125em;
	block-size: 1.125em;
	color: var(--color-content-secondary);
}

[data-command-item-shortcut] {
	display: inline-flex;
	flex: 0 0 auto;
	align-items: center;
	gap: var(--space-1);
	margin-inline-start: auto;
	color: var(--color-content-muted);
	font-size: 0.875em;
}

/* When the row is highlighted, lift the muted sub-parts to primary. */
[data-command-item][data-selected] [data-command-item-icon],
[data-command-item][data-selected] [data-command-item-shortcut],
[data-command-link-item][data-selected] [data-command-item-icon],
[data-command-link-item][data-selected] [data-command-item-shortcut] {
	color: var(--color-content-primary);
}

/* ── Empty state ──────────────────────────────────────────────────── */

[data-command-empty] {
	padding-block: var(--space-4);
	padding-inline: var(--_command-item-px);
	color: var(--color-content-muted);
	font-size: var(--_command-item-font-size);
	text-align: center;
}

/* ── Separator ────────────────────────────────────────────────────── */

[data-command-separator] {
	block-size: 1px;
	margin-block: var(--space-1);
	background: var(--color-border-subtle);
}