/**
 * Desktop Mode — Dock.
 *
 * A rail that hosts admin menu tiles plus shell-level system tiles.
 * Placement (left / right / bottom) is reflected on each dock element
 * itself as `data-desktop-mode-dock-placement`; this stylesheet keys
 * off that attribute for layout, tooltip anchor, and indicator
 * position. Two instances can coexist (Classic layout: a left side
 * bar with core menus + a bottom dock with plugin menus); each
 * carries its own placement attribute, so the two rails are styled
 * independently without leaking selector state to one another.
 *
 * @since 6.9.0
 */

/* ------------------------------------------------------------------
 * Shared dock chrome — applies to every placement.
 * ------------------------------------------------------------------ */

.desktop-mode-dock {
	display: flex;
	align-items: center;
	z-index: var( --desktop-mode-z-dock );
	background: var( --desktop-mode-dock-bg );
	backdrop-filter: blur( 20px );
	-webkit-backdrop-filter: blur( 20px );
	flex-shrink: 0;
	/*
	 * overflow: visible so the per-tile "Open another" chip can float
	 * past the dock's outer edge. Real-world menus fit the viewport
	 * without a scrollbar; if this ever needs to scroll, wrap tiles
	 * in a scroll container rather than clipping here.
	 */
	overflow: visible;
}

/* A single dock tile — icon button (+ optional instance rail below). */
.desktop-mode-dock__item {
	position: relative;
	display: flex;
	flex-direction: column;
	align-items: center;
	width: 40px;
	flex-shrink: 0;
}

/* Primary icon button — opens or focuses the page. */
.desktop-mode-dock__item-primary {
	position: relative;
	display: flex;
	align-items: center;
	justify-content: center;
	width: 40px;
	height: 40px;
	border: none;
	border-radius: 10px;
	cursor: pointer;
	padding: 0;
	background: transparent;
	color: rgba( 255, 255, 255, 0.7 );
	transition: background-color 0.15s ease, transform 0.15s ease, color 0.15s ease;
}

.desktop-mode-dock__item-primary:hover {
	background: rgba( 255, 255, 255, 0.15 );
	color: #fff;
	transform: scale( 1.1 );
}

.desktop-mode-dock__item-primary:active {
	transform: scale( 0.95 );
}

.desktop-mode-dock__item-primary:focus-visible {
	outline: 2px solid rgba( 255, 255, 255, 0.7 );
	outline-offset: 2px;
}

/* Dashicon inside dock item. */
.desktop-mode-dock__item .dashicons {
	font-size: var( --desktop-mode-dock-icon-size, 20px );
	width: var( --desktop-mode-dock-icon-size, 20px );
	height: var( --desktop-mode-dock-icon-size, 20px );
	line-height: 1;
}

/* SVG icon (for custom post types with data:image/svg+xml icons). */
.desktop-mode-dock__item-svg {
	width: var( --desktop-mode-dock-icon-size, 20px );
	height: var( --desktop-mode-dock-icon-size, 20px );
	display: block;
	fill: currentColor;
	opacity: 0.7;
	/* Some plugin SVGs ship hardcoded `fill="..."` attributes inside
	   the markup, which override `fill: currentColor` and make the
	   icon keep its brand color. Force the monochrome white palette
	   to match dashicons. */
	filter: brightness(0) invert(1);
	transition: opacity 0.15s ease;
}

.desktop-mode-dock__item-primary:hover .desktop-mode-dock__item-svg {
	opacity: 1;
}

/*
 * Letter-badge icon — rendered for items registered without a
 * dashicon / SVG / image URL. Miniature "app placeholder": rounded
 * square tinted with a title-derived hue, first letter centered.
 */
.desktop-mode-dock__item-letter {
	display: flex;
	align-items: center;
	justify-content: center;
	width: 28px;
	height: 28px;
	border-radius: 8px;
	color: #fff;
	font-size: 15px;
	font-weight: 700;
	font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
	line-height: 1;
	letter-spacing: 0;
	text-shadow: 0 1px 1px rgba( 0, 0, 0, 0.22 );
	box-shadow:
		inset 0 1px 0 rgba( 255, 255, 255, 0.2 ),
		inset 0 -1px 0 rgba( 0, 0, 0, 0.15 );
}

.desktop-mode-dock__item img.desktop-mode-dock__item-img {
	width: var( --desktop-mode-dock-icon-size, 20px );
	height: var( --desktop-mode-dock-icon-size, 20px );
	display: block;
	opacity: 0.7;
	transition: opacity 0.15s ease;
}

.desktop-mode-dock__item-primary:hover img.desktop-mode-dock__item-img {
	opacity: 1;
}

/* "Open another" floating chip — shown on multi-capable tiles that
 * already have ≥1 open instance. Positioned inside each orientation
 * block so the chip hugs the outward edge of the tile. */
.desktop-mode-dock__item-new {
	position: absolute;
	display: flex;
	align-items: center;
	justify-content: center;
	width: 20px;
	height: 20px;
	padding: 0;
	border: 2px solid var( --desktop-mode-dock-bg, rgba( 0, 0, 0, 0.4 ) );
	border-radius: 50%;
	background: var( --wp-admin-theme-color, #2271b1 );
	color: #fff;
	cursor: pointer;
	transition: background-color 0.15s ease, transform 0.15s ease;
	z-index: 1;
}

.desktop-mode-dock__item-new[hidden] {
	display: none;
}

.desktop-mode-dock__item-new:hover {
	background: #fff;
	color: var( --wp-admin-theme-color, #2271b1 );
}

.desktop-mode-dock__item-new:focus-visible {
	outline: 2px solid rgba( 255, 255, 255, 0.85 );
	outline-offset: 2px;
}

/* Notification badge — iOS/macOS-style pill straddling the tile
 * corner. Ring matches the dock bg so it reads as "punched out."
 * Badge positioning is placement-aware via the blocks below. */
.desktop-mode-dock__badge {
	position: absolute;
	min-width: 16px;
	height: 16px;
	padding: 0 5px;
	box-sizing: border-box;
	border-radius: 999px;
	background: linear-gradient( 180deg, #ff5a5a 0%, #d63638 100% );
	color: #fff;
	display: inline-flex;
	align-items: center;
	justify-content: center;
	font-size: 10px;
	font-weight: 700;
	line-height: 1;
	letter-spacing: 0.01em;
	text-align: center;
	font-variant-numeric: tabular-nums;
	box-shadow:
		0 0 0 1.5px var( --desktop-mode-dock-bg, rgba( 0, 0, 0, 0.4 ) ),
		0 1px 3px rgba( 0, 0, 0, 0.35 );
	pointer-events: none;
	transition: transform 0.15s ease;
	top: -3px;
	inset-inline-end: -3px;
}

.desktop-mode-dock__item:hover .desktop-mode-dock__badge {
	transform: scale( 1.05 );
	top: -4px;
}

/* System tiles — same footprint as menu tiles, no badges, no rails. */
.desktop-mode-dock__item--system .desktop-mode-dock__item-primary {
	color: rgba( 255, 255, 255, 0.8 );
}

/* -----------------------------------------------------------------------------
 * Attention animations — driven by `Dock.setAttention()` /
 * `Window.requestAttention()`. The class lands on the tile root,
 * the animation runs on the primary icon button so the badge stays
 * stable. Three modes (pulse / shake / bounce) and three intensities
 * (subtle / normal / strong). All animations gated on
 * `prefers-reduced-motion: no-preference`; the reduced-motion fallback
 * shows a static accent ring for the same duration so the affordance
 * still works.
 * ------------------------------------------------------------------------- */

@keyframes wpd-dock-attention-pulse {
	0%, 100% {
		transform: scale( 1 );
		box-shadow: 0 0 0 0 rgba( 255, 90, 90, 0.55 );
	}
	50% {
		transform: scale( 1.06 );
		box-shadow: 0 0 0 8px rgba( 255, 90, 90, 0 );
	}
}

@keyframes wpd-dock-attention-shake {
	0%, 100% {
		transform: translateX( 0 );
	}
	20%, 60% {
		transform: translateX( -3px );
	}
	40%, 80% {
		transform: translateX( 3px );
	}
}

@keyframes wpd-dock-attention-bounce {
	0%, 100% {
		transform: translateY( 0 );
	}
	30% {
		transform: translateY( -6px );
	}
	60% {
		transform: translateY( -2px );
	}
}

.desktop-mode-dock__item--attention-pulse .desktop-mode-dock__item-primary {
	animation: wpd-dock-attention-pulse 1.4s ease-in-out infinite;
}
.desktop-mode-dock__item--attention-shake .desktop-mode-dock__item-primary {
	animation: wpd-dock-attention-shake 0.8s ease-in-out infinite;
}
.desktop-mode-dock__item--attention-bounce .desktop-mode-dock__item-primary {
	animation: wpd-dock-attention-bounce 1.2s ease-in-out infinite;
}

/* Intensity modulates animation duration — strong = faster, more
   urgent; subtle = slower, calmer. */
.desktop-mode-dock__item--intensity-strong.desktop-mode-dock__item--attention-pulse .desktop-mode-dock__item-primary {
	animation-duration: 1s;
}
.desktop-mode-dock__item--intensity-strong.desktop-mode-dock__item--attention-shake .desktop-mode-dock__item-primary {
	animation-duration: 0.6s;
}
.desktop-mode-dock__item--intensity-strong.desktop-mode-dock__item--attention-bounce .desktop-mode-dock__item-primary {
	animation-duration: 0.9s;
}
.desktop-mode-dock__item--intensity-subtle.desktop-mode-dock__item--attention-pulse .desktop-mode-dock__item-primary {
	animation-duration: 1.8s;
}
.desktop-mode-dock__item--intensity-subtle.desktop-mode-dock__item--attention-shake .desktop-mode-dock__item-primary {
	animation-duration: 1s;
}
.desktop-mode-dock__item--intensity-subtle.desktop-mode-dock__item--attention-bounce .desktop-mode-dock__item-primary {
	animation-duration: 1.6s;
}

/* Reduced-motion: kill the animation, replace with a static accent ring
   for the same visual prominence without the movement. */
@media ( prefers-reduced-motion: reduce ) {
	.desktop-mode-dock__item--attention-pulse .desktop-mode-dock__item-primary,
	.desktop-mode-dock__item--attention-shake .desktop-mode-dock__item-primary,
	.desktop-mode-dock__item--attention-bounce .desktop-mode-dock__item-primary {
		animation: none;
		outline: 2px solid var( --wp-admin-theme-color, #2271b1 );
		outline-offset: 2px;
		border-radius: 8px;
	}
}

/* Shared tooltip — placement-specific anchor modifiers applied by JS. */
.desktop-mode-dock__tooltip {
	position: fixed;
	padding: 6px 12px;
	background: rgba( 0, 0, 0, 0.85 );
	color: #fff;
	font-size: 12px;
	font-weight: 400;
	line-height: 1.4;
	white-space: nowrap;
	border-radius: 6px;
	pointer-events: none;
	z-index: calc( var( --desktop-mode-z-dock ) + 1 );
	opacity: 0;
	transition: opacity 0.15s ease, transform 0.15s ease;
}

.desktop-mode-dock__tooltip--visible {
	opacity: 1;
}

/* ------------------------------------------------------------------
 * Vertical placement (left + right) — dock runs the full shell body
 * height along one edge, with items stacked vertically.
 * ------------------------------------------------------------------ */

.desktop-mode-dock[ data-desktop-mode-dock-placement="left" ],
.desktop-mode-dock[ data-desktop-mode-dock-placement="right" ] {
	width: var( --desktop-mode-dock-width );
	flex-direction: column;
	padding: 16px 0 12px;
	gap: 6px;
}

/* Left: dock is the first flex item in __body (row layout). */
.desktop-mode-dock[ data-desktop-mode-dock-placement="left" ] {
	border-inline-end: 1px solid var( --desktop-mode-dock-border );
	order: -1;
}

/* Right: push the dock to the end of __body and flip the border edge. */
.desktop-mode-dock[ data-desktop-mode-dock-placement="right" ] {
	border-inline-start: 1px solid var( --desktop-mode-dock-border );
	order: 1;
}

/* Active-indicator dot — left dock: inside-edge vertical pill. */
.desktop-mode-dock[ data-desktop-mode-dock-placement="left" ]
	.desktop-mode-dock__item--active::before {
	content: "";
	position: absolute;
	inset-inline-start: -6px;
	top: 50%;
	transform: translateY( -50% );
	width: 4px;
	height: 4px;
	border-radius: 50%;
	background: #fff;
}

.desktop-mode-dock[ data-desktop-mode-dock-placement="left" ]
	.desktop-mode-dock__item--focused::before {
	width: 4px;
	height: 16px;
	border-radius: 2px;
}

/* Right dock: indicator on the opposite edge (inside-facing). */
.desktop-mode-dock[ data-desktop-mode-dock-placement="right" ]
	.desktop-mode-dock__item--active::before {
	content: "";
	position: absolute;
	inset-inline-end: -6px;
	top: 50%;
	transform: translateY( -50% );
	width: 4px;
	height: 4px;
	border-radius: 50%;
	background: #fff;
}

.desktop-mode-dock[ data-desktop-mode-dock-placement="right" ]
	.desktop-mode-dock__item--focused::before {
	width: 4px;
	height: 16px;
	border-radius: 2px;
}

/* "Open another" chip — left: right of tile; right: left of tile. */
.desktop-mode-dock[ data-desktop-mode-dock-placement="left" ]
	.desktop-mode-dock__item-new {
	top: 50%;
	inset-inline-end: -13px;
	transform: translateY( -50% );
}

.desktop-mode-dock[ data-desktop-mode-dock-placement="left" ]
	.desktop-mode-dock__item-new:hover {
	transform: translateY( -50% ) scale( 1.1 );
}

.desktop-mode-dock[ data-desktop-mode-dock-placement="right" ]
	.desktop-mode-dock__item-new {
	top: 50%;
	inset-inline-start: -13px;
	transform: translateY( -50% );
}

.desktop-mode-dock[ data-desktop-mode-dock-placement="right" ]
	.desktop-mode-dock__item-new:hover {
	transform: translateY( -50% ) scale( 1.1 );
}

/* Separator — horizontal hairline between menu tiles and system
 * tiles, with margin-top: auto pushing system items to the bottom.
 * The `--group` variant is used inline between core and plugin
 * menu tiles; it keeps the hairline styling but drops the auto
 * margin so it sits exactly where it's inserted. */
.desktop-mode-dock[ data-desktop-mode-dock-placement="left" ]
	.desktop-mode-dock__separator,
.desktop-mode-dock[ data-desktop-mode-dock-placement="right" ]
	.desktop-mode-dock__separator {
	width: 60%;
	height: 1px;
	margin: 8px auto 4px;
	background: var( --desktop-mode-dock-border );
	flex-shrink: 0;
	margin-top: auto;
}

.desktop-mode-dock[ data-desktop-mode-dock-placement="left" ]
	.desktop-mode-dock__separator--group,
.desktop-mode-dock[ data-desktop-mode-dock-placement="right" ]
	.desktop-mode-dock__separator--group {
	margin: 10px auto;
	background: rgba( 255, 255, 255, 0.22 );
}

/*
 * Hide the separator when nothing precedes it. The TS code creates
 * a system / pinned separator before its first cluster item — on a
 * clean install with only system items and no menu items, the
 * separator becomes the dock's first child and would render as a
 * stray hairline with nothing to divide.
 */
.desktop-mode-dock__separator:first-child {
	display: none;
}

/* Tooltip — anchor modifiers are applied directly to the tooltip
 * element (NOT via a descendant selector on `.desktop-mode-dock`)
 * because the tooltip lives in `document.body`. JS writes the
 * absolute `top` / `left` coords; CSS handles the slide-in
 * animation direction per modifier.
 *
 *   - `--after`   : left-placed dock  (tooltip to the RIGHT of tile)
 *   - `--before`  : right-placed dock (tooltip to the LEFT of tile)
 *   - `--above`   : bottom-placed dock (tooltip ABOVE the tile)
 */

/* Left dock — tooltip slides in from the left by 4px. JS sets
 * `left` to `tile.right + 8px`; the transform animates the entry. */
.desktop-mode-dock__tooltip--after {
	transform: translateX( -4px );
}

.desktop-mode-dock__tooltip--after.desktop-mode-dock__tooltip--visible {
	transform: translateX( 0 );
}

.desktop-mode-dock__tooltip--before {
	/* Right-placed dock — tooltip sits to the left of the tile. JS
	 * writes the left coord to the tile's left edge; this translate
	 * pulls the tooltip further left by its own width. */
	transform: translate( calc( -100% - 8px ), 0 );
}

.desktop-mode-dock__tooltip--before.desktop-mode-dock__tooltip--visible {
	transform: translate( calc( -100% - 8px ), 0 );
	opacity: 1;
}

/* ------------------------------------------------------------------
 * Bottom placement — floating macOS-style pill centered above the
 * viewport floor. Absolutely positioned so it floats as pure chrome
 * rather than stealing vertical space from the shell body.
 * ------------------------------------------------------------------ */

.desktop-mode-dock[ data-desktop-mode-dock-placement="bottom" ] {
	position: absolute;
	inset-inline-start: 0;
	inset-inline-end: 0;
	bottom: 12px;
	margin: 0 auto;
	width: fit-content;
	max-width: calc( 100% - 32px );
	flex-direction: row;
	justify-content: center;
	padding: 8px 12px;
	gap: 6px;
	border-radius: 18px;

	/* Warmer, more saturated glass tint than vertical placements so
	 * the floating pill reads as a distinct piece of chrome rather
	 * than a section of the sidebar. */
	background: rgba( 22, 22, 26, 0.42 );
	backdrop-filter: blur( 28px ) saturate( 170% );
	-webkit-backdrop-filter: blur( 28px ) saturate( 170% );

	border: 1px solid rgba( 255, 255, 255, 0.12 );
	border-block-start: 1px solid rgba( 255, 255, 255, 0.18 );
	box-shadow:
		inset 0 1px 0 rgba( 255, 255, 255, 0.08 ),
		0 10px 32px rgba( 0, 0, 0, 0.45 );
}

/* Active-indicator dot — below the tile, macOS-style. */
.desktop-mode-dock[ data-desktop-mode-dock-placement="bottom" ]
	.desktop-mode-dock__item--active::before {
	content: "";
	position: absolute;
	inset-inline-start: 50%;
	top: auto;
	bottom: -4px;
	transform: translateX( -50% );
	width: 4px;
	height: 4px;
	border-radius: 50%;
	background: #fff;
}

.desktop-mode-dock[ data-desktop-mode-dock-placement="bottom" ]
	.desktop-mode-dock__item--focused::before {
	width: 16px;
	height: 4px;
	border-radius: 2px;
}

/* "Open another" chip — floats above the tile's top-right corner so
 * it doesn't collide with neighbouring tiles in the horizontal row. */
.desktop-mode-dock[ data-desktop-mode-dock-placement="bottom" ]
	.desktop-mode-dock__item-new {
	top: -6px;
	inset-inline-end: -6px;
	transform: none;
}

.desktop-mode-dock[ data-desktop-mode-dock-placement="bottom" ]
	.desktop-mode-dock__item-new:hover {
	transform: scale( 1.1 );
}

/* Separator — vertical hairline between menu tiles and system tiles,
 * with margin-inline-start: auto pushing system items to the end.
 * The `--group` variant keeps the hairline styling for the inline
 * core→plugin boundary but drops the auto margin so it sits where
 * inserted. Tighter margin than the auto variant so the two groups
 * read as related rather than completely isolated. */
.desktop-mode-dock[ data-desktop-mode-dock-placement="bottom" ]
	.desktop-mode-dock__separator {
	width: 1px;
	/* Fixed height — `60%` collapses against the floating pill's
	   intrinsic height, leaving the hairline effectively invisible.
	   28px matches the dock tile inner glyph area. */
	height: 28px;
	margin: auto 4px auto 8px;
	margin-inline-start: auto;
	background: var( --desktop-mode-dock-border );
	flex-shrink: 0;
}

/*
 * Group separator — sits inline between the core cluster and the
 * plugin cluster. Brighter than the menu-vs-system separator because
 * it carries user meaning ("this is where your installed apps
 * begin"), and flanked by extra gap so the boundary reads at a
 * glance rather than disappearing into the dock tint.
 */
.desktop-mode-dock[ data-desktop-mode-dock-placement="bottom" ]
	.desktop-mode-dock__separator--group {
	width: 1px;
	height: 60%;
	margin: auto 10px;
	margin-inline-start: 10px;
	background: rgba( 255, 255, 255, 0.22 );
	flex-shrink: 0;
}

/* Tooltip — above the hovered tile. JS writes the horizontal center
 * + a top near the tile's top edge; CSS translates the tooltip up by
 * its own height so it clears the tile. */
.desktop-mode-dock__tooltip--above {
	inset-inline-start: auto;
	transform: translate( -50%, calc( -100% - 4px ) );
}

.desktop-mode-dock__tooltip--above.desktop-mode-dock__tooltip--visible {
	transform: translate( -50%, -100% );
}



/* Drag-to-reorder (since 0.25.0).
 *
 * The dragged tile follows the cursor via inline `transform:
 * translate()` written from JS. It stays IN flow so flex doesn't
 * collapse the row — the visual lift is a z-index bump and
 * `pointer-events: none` so `elementFromPoint` finds siblings
 * underneath the cursor. Sibling tiles animate via FLIP — the JS
 * writes inline `transform` + `transition` per leg, so no CSS
 * transition is declared here (it would race with the per-leg
 * inline transition). */
.desktop-mode-dock__item--dragging {
	pointer-events: none;
	z-index: 50;
	opacity: 0.92;
	cursor: grabbing;
	will-change: transform;
	/* Subtle shadow so the dragged tile reads as "lifted" against
	 * the dock surface it floats above. */
	filter: drop-shadow( 0 6px 12px rgba( 0, 0, 0, 0.35 ) );
}

.desktop-mode-dock__item:not( .desktop-mode-dock__item--system ) {
	cursor: grab;
}

.desktop-mode-dock__item:not( .desktop-mode-dock__item--system ):active {
	cursor: grabbing;
}