/**
 * Agents — "Agent chat" window styles.
 *
 * Conversation surface painted by the `agent-run-window` bundle
 * (src/agent-run-window.ts). Same conventions as the other window
 * stylesheets: `os-*` / `dm-*` prefixes, theming via the
 * os-variables custom properties.
 *
 */

.desktop-mode-agent-run {
	display: flex;
	flex-direction: column;
	width: 100%;
	height: 100%;
	min-height: 0;
	font-family: var(
		--os-font,
		-apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif
	);
	color: var( --os-ui-fg, #1d2327 );
	background: var( --os-window-bg, #fff );
	box-sizing: border-box;
}

.os-agent-run__loading {
	display: flex;
	align-items: center;
	justify-content: center;
	height: 100%;
}

.dm-agent-chat {
	display: flex;
	flex-direction: row;
	height: 100%;
	min-height: 0;
}

/* Past-conversations sidebar. */
.dm-agent-chat__sidebar {
	width: 190px;
	flex: none;
	display: flex;
	flex-direction: column;
	min-height: 0;
	border-right: 1px solid rgba( 0, 0, 0, 0.08 );
	background: rgba( 0, 0, 0, 0.02 );
}

.dm-agent-chat__new {
	margin: 10px 10px 6px;
}

.dm-agent-chat__convs {
	flex: 1;
	overflow-y: auto;
	padding: 0 6px 10px;
	display: flex;
	flex-direction: column;
	gap: 2px;
}

.dm-agent-chat__convs-empty {
	color: #757575;
	font-size: 12px;
	padding: 8px;
}

.dm-agent-chat__conv {
	display: flex;
	align-items: center;
	gap: 8px;
	padding: 7px 8px;
	border-radius: 8px;
	cursor: pointer;
}

.dm-agent-chat__conv:hover {
	background: rgba( 0, 0, 0, 0.05 );
}

.dm-agent-chat__conv--active {
	background: rgba( 0, 0, 0, 0.08 );
}

.dm-agent-chat__conv-avatar {
	flex: none;
}

/* Two-line row: agent + time on top, the tail of the last message
   below. Both lines clamp to one line — the sidebar is 190px wide and
   a wrapping row would push the next conversation out of reach. */
.dm-agent-chat__conv-text {
	flex: 1;
	min-width: 0;
	display: flex;
	flex-direction: column;
	gap: 1px;
}

.dm-agent-chat__conv-top {
	display: flex;
	align-items: baseline;
	gap: 6px;
	min-width: 0;
}

.dm-agent-chat__conv-name {
	flex: 1;
	min-width: 0;
	font-size: 12px;
	font-weight: 600;
	white-space: nowrap;
	overflow: hidden;
	text-overflow: ellipsis;
}

.dm-agent-chat__conv-time {
	flex: none;
	font-size: 11px;
	opacity: 0.55;
	font-variant-numeric: tabular-nums;
}

.dm-agent-chat__conv-preview {
	min-width: 0;
	font-size: 11.5px;
	opacity: 0.65;
	white-space: nowrap;
	overflow: hidden;
	text-overflow: ellipsis;
}

.dm-agent-chat__conv-delete {
	flex: none;
	opacity: 0;
	border: 0;
	background: none;
	cursor: pointer;
	color: #757575;
	font-size: 14px;
	padding: 0 2px;
	line-height: 1;
}

.dm-agent-chat__conv:hover .dm-agent-chat__conv-delete,
.dm-agent-chat__conv-delete:focus-visible {
	opacity: 1;
}

/* Conversation column. */
.dm-agent-chat__main {
	flex: 1;
	display: flex;
	flex-direction: column;
	min-width: 0;
	min-height: 0;
}

.dm-agent-chat__head {
	display: flex;
	align-items: center;
	gap: 10px;
	padding: 12px;
	border-bottom: 1px solid var( --os-border, rgba( 0, 0, 0, 0.08 ) );
}

.dm-agent-chat__avatar {
	flex: none;
}

.dm-agent-chat__title {
	display: flex;
	flex-direction: column;
	min-width: 0;
}

.dm-agent-chat__desc {
	font-size: 12px;
	opacity: 0.65;
	white-space: nowrap;
	overflow: hidden;
	text-overflow: ellipsis;
}

.dm-agent-chat__scroll {
	flex: 1;
	min-height: 0;
	overflow-y: auto;
	padding: 12px;
	display: flex;
	flex-direction: column;
	gap: 10px;
}

.dm-agent-chat__msg {
	max-width: 85%;
	border-radius: 12px;
	padding: 8px 12px;
	display: flex;
	flex-direction: column;
	gap: 6px;
	font-size: 13px;
	line-height: 1.5;
}

.dm-agent-chat__msg--user {
	align-self: flex-end;
	background: var( --os-accent, #2271b1 );
	color: #fff;
}

.dm-agent-chat__msg--agent {
	align-self: flex-start;
	background: var( --os-hover, rgba( 0, 0, 0, 0.06 ) );
}

.dm-agent-chat__msg--error {
	align-self: flex-start;
	/* Tokenized so the wash and its ink move together: a dark-red
	   literal on a translucent red wash reads fine over a white bubble
	   list and vanishes over a dark one. Literals unchanged. */
	background: var( --os-ui-notice-error-bg, rgba( 214, 54, 56, 0.12 ) );
	color: var( --os-ui-danger, #8a1f21 );
}

.dm-agent-chat__msg-text {
	white-space: pre-wrap;
	word-break: break-word;
}

.dm-agent-chat__tools {
	font-size: 12px;
	opacity: 0.8;
}

.dm-agent-chat__tools summary {
	cursor: pointer;
}

.dm-agent-chat__tool {
	font-family: monospace;
	font-size: 11px;
	padding: 2px 0;
	word-break: break-all;
}

/* Call-to-action buttons under an agent answer. */
.dm-agent-chat__ctas {
	display: flex;
	flex-wrap: wrap;
	gap: 8px;
	margin-top: 2px;
}

/* The composer is one field. The textarea is still the kit's, but the
   wrapper carries the chrome (field surface, border, focus bloom) and
   the textarea's own box is flattened through its exported part, so
   the send button sits inside the same border rather than beside it. */
.dm-agent-chat__composer {
	display: flex;
	align-items: flex-end;
	gap: 6px;
	margin: 10px 12px 12px;
	padding: 4px 8px 4px 10px;
	border: 1px solid var( --os-ui-field-border, var( --os-ui-border, #dcdcde ) );
	border-radius: 12px;
	background: var( --os-ui-field-bg, var( --os-window-bg, #fff ) );
	transition: border-color 0.15s ease, box-shadow 0.15s ease;
}

.dm-agent-chat__composer:focus-within {
	border-color: var( --os-ui-accent, #f252fc );
	box-shadow: 0 0 0 3px
		color-mix( in srgb, var( --os-ui-accent-dim, #f252fc ) 28%, transparent );
}

.dm-agent-chat__composer os-textarea {
	flex: 1;
	min-width: 0;
}

/* One line of 13px text at 1.45 is 18.85px; 6.5px above and below
   makes the single-line textarea 31.85px, the send button's height,
   so with the row bottom-aligned the two centres coincide on one line
   and the button stays anchored at the bottom as the text grows. */
.dm-agent-chat__composer os-textarea::part( textarea ),
.dm-agent-chat__composer os-textarea::part( textarea ):hover,
.dm-agent-chat__composer os-textarea::part( textarea ):focus,
.dm-agent-chat__composer os-textarea::part( textarea ):focus-visible {
	border: 0;
	border-radius: 0;
	background: transparent;
	box-shadow: none;
	outline: none;
	padding: 6.5px 0;
}

/* Round and icon-only, a size down from a toolbar button so it reads
   as part of the field rather than a control beside it. Sized through
   the exported part: the host's width does not reach the inner button,
   and a zero padding token on its own shrank it to the glyph. The
   bottom margin is half the difference to the single-line textarea
   (31.85px), so the two centres meet on one line and the button stays
   anchored to the last line as the text grows. */
.dm-agent-chat__send {
	flex: none;
	margin-block-end: 4px;
}

.dm-agent-chat__send::part( button ) {
	display: inline-flex;
	align-items: center;
	justify-content: center;
	width: 24px;
	height: 24px;
	min-height: 0;
	padding: 0;
	border-radius: 999px;
}

.dm-agent-chat__send-icon {
	display: block;
	width: 14px;
	height: 14px;
}

/* The accessible name, off-screen. */
.dm-agent-chat__send-label {
	position: absolute;
	width: 1px;
	height: 1px;
	padding: 0;
	margin: -1px;
	overflow: hidden;
	clip: rect( 0, 0, 0, 0 );
	white-space: nowrap;
	border: 0;
}

@media ( prefers-reduced-motion: reduce ) {
	.dm-agent-chat__composer {
		transition: none;
	}
}


.dm-agent-chat__line {
	display: flex;
	align-items: flex-end;
	gap: 8px;
	max-width: 88%;
}

.dm-agent-chat__line--agent,
.dm-agent-chat__line--error {
	align-self: flex-start;
}

.dm-agent-chat__line--user {
	align-self: flex-end;
	flex-direction: row-reverse;
}

.dm-agent-chat__line .dm-agent-chat__msg {
	align-self: auto;
	max-width: none;
	min-width: 0;
}

.dm-agent-chat__msg-avatar {
	flex: none;
}

/* The object a drop / "Send to" handed the agent. Rendered instead of
   the runner-facing sentence, and clickable — it opens the entity's
   admin screen in its own window. */
.dm-agent-chat__attachment {
	display: flex;
	align-items: center;
	gap: 8px;
	inline-size: 100%;
	min-inline-size: 0;
	padding: 8px 10px;
	border: 1px solid rgba( 255, 255, 255, 0.35 );
	border-radius: 10px;
	background: rgba( 255, 255, 255, 0.16 );
	color: inherit;
	font: inherit;
	text-align: start;
	cursor: pointer;
}

.dm-agent-chat__attachment:hover,
.dm-agent-chat__attachment:focus-visible {
	background: rgba( 255, 255, 255, 0.28 );
}

.dm-agent-chat__msg--agent .dm-agent-chat__attachment,
.dm-agent-chat__msg--error .dm-agent-chat__attachment {
	border-color: var( --os-border, rgba( 0, 0, 0, 0.12 ) );
	background: rgba( 0, 0, 0, 0.04 );
}

.dm-agent-chat__msg--agent .dm-agent-chat__attachment:hover,
.dm-agent-chat__msg--error .dm-agent-chat__attachment:hover {
	background: rgba( 0, 0, 0, 0.08 );
}

.dm-agent-chat__attachment-icon {
	flex: none;
	font-size: 20px;
	inline-size: 20px;
	block-size: 20px;
}

.dm-agent-chat__attachment-text {
	flex: 1;
	min-inline-size: 0;
	display: flex;
	flex-direction: column;
	gap: 1px;
}

.dm-agent-chat__attachment-title {
	font-weight: 600;
	white-space: nowrap;
	overflow: hidden;
	text-overflow: ellipsis;
}

.dm-agent-chat__attachment-meta {
	font-size: 11px;
	opacity: 0.75;
}

.dm-agent-chat__attachment-open {
	flex: none;
	font-size: 15px;
	inline-size: 15px;
	block-size: 15px;
	opacity: 0.7;
}

.dm-agent-chat__msg-caption {
	font-size: 11px;
	opacity: 0.75;
}

/* The in-flight bubble: wide enough to read as a live surface, not a
   chip. The width lives on the LINE (its percentage resolves against
   the message column; the bubble's own would resolve against the
   shrink-to-fit line and collapse), and the bubble fills the line. */
.dm-agent-chat__line--pending {
	min-width: min( 176px, 100% );
}

/* Spinner and label on one line, centred. The bubble is a flex column
   everywhere else; the working row is the one place it reads as an
   instrument line, arc first, then the word. */
.dm-agent-chat__line--pending .dm-agent-chat__msg {
	flex: 1;
	flex-direction: row;
	align-items: center;
	justify-content: center;
	gap: 8px;
}

.dm-agent-chat__msg--pending os-spinner {
	flex: none;
	--os-ui-spinner-size: 16px;
}

/* Three motions say "working", each quiet on its own: the arc turns
   (the component's), a sheen sweeps the label, and the agent's face
   bobs beside the bubble. The sheen is the skeleton shimmer clipped
   to text, so the label stays a real, selectable word rather than a
   drawn one. Every one of them stops under reduced motion; the label
   falls back to its plain colour, not to invisible text. */
.dm-agent-chat__msg--pending .dm-agent-chat__msg-text {
	background: linear-gradient(
		90deg,
		currentColor 0%,
		currentColor 35%,
		var( --os-ui-accent, #f252fc ) 50%,
		currentColor 65%,
		currentColor 100%
	);
	background-size: 250% 100%;
	-webkit-background-clip: text;
	background-clip: text;
	-webkit-text-fill-color: transparent;
	animation: dm-agent-chat-sheen 1.8s ease-in-out infinite;
}

.dm-agent-chat__line--pending .dm-agent-chat__msg-avatar {
	animation: dm-agent-chat-bob 1.4s ease-in-out infinite;
}

@keyframes dm-agent-chat-sheen {
	from {
		background-position: 125% 0;
	}
	to {
		background-position: -125% 0;
	}
}

@keyframes dm-agent-chat-bob {
	0%,
	100% {
		transform: translateY( 0 );
	}
	50% {
		transform: translateY( -3px );
	}
}

@media ( prefers-reduced-motion: reduce ) {
	.dm-agent-chat__msg--pending .dm-agent-chat__msg-text {
		animation: none;
		background: none;
		-webkit-text-fill-color: currentColor;
	}
	.dm-agent-chat__line--pending .dm-agent-chat__msg-avatar {
		animation: none;
	}
}

/* Markdown content inside agent bubbles. */
.dm-agent-chat__msg-text p {
	margin: 0 0 0.5em;
}

.dm-agent-chat__msg-text p:last-child {
	margin-bottom: 0;
}

.dm-agent-chat__msg-text ul,
.dm-agent-chat__msg-text ol {
	margin: 0 0 0.5em;
	padding-left: 1.4em;
}

.dm-agent-chat__msg-text h3,
.dm-agent-chat__msg-text h4,
.dm-agent-chat__msg-text h5,
.dm-agent-chat__msg-text h6 {
	margin: 0.6em 0 0.3em;
	font-size: 1em;
	line-height: 1.3;
}

.dm-agent-chat__msg-text h3:first-child,
.dm-agent-chat__msg-text h4:first-child,
.dm-agent-chat__msg-text h5:first-child,
.dm-agent-chat__msg-text h6:first-child {
	margin-top: 0;
}

.dm-agent-chat__msg-text hr {
	border: 0;
	border-top: 1px solid rgba( 0, 0, 0, 0.12 );
	margin: 0.6em 0;
}

.dm-agent-chat__msg-text code {
	background: rgba( 0, 0, 0, 0.07 );
	padding: 0.1em 0.35em;
	border-radius: 4px;
	font-size: 0.92em;
}

.dm-agent-chat__msg--user .dm-agent-chat__msg-text code {
	background: rgba( 255, 255, 255, 0.2 );
}