/**
 * One scoped stylesheet injected for the lifetime of the client activation.
 *
 * Two jobs:
 *  1. The empty-seat collapse rule: the shadowed toolview renders `null` for
 *     every non-first call of a merged run. The built-in `ToolCallTree` still
 *     wraps that null in its `.callRow` div, and the renderer wraps every
 *     toolview in an empty `<div data-slot="tool.call.toolview">` (display:
 *     contents), so the seat's `.flowItem` is never `:empty` itself and the
 *     built-in `.flowItem:empty { display:none }` rule does not fire. This
 *     rule extends the same intent ("a renderer may decline its row") to a
 *     tool seat whose toolview rendered nothing.
 *  2. The plugin's own `.mtc-*` chrome for the merged card and its child rows.
 *
 * All colors come from the shared `--dsw-*` tokens (never literals).
 */
export declare const CSS = "\n/* A tool-call seat whose toolview declined to render (merged-run continuation\n   calls) must not consume the flow column's gap. The empty toolview slot\n   wrapper is the decline signal; the callRow around it always exists. */\n[data-chat-flow-kind=\"tool-call\"]:has([data-slot=\"tool.call.toolview\"]:empty) { display: none; }\n\n.mtc-root { display: flex; flex-direction: column; min-width: 0; }\n.mtc-row { display: flex; flex-direction: column; min-width: 0; }\n.mtc-row[data-state='running'] .mtc-title-row { position: relative; overflow: hidden; }\n.mtc-row[data-state='running'] .mtc-title-row::after {\n  content: '';\n  position: absolute;\n  top: 0; bottom: 0; left: 0;\n  width: 300px;\n  background: linear-gradient(90deg, transparent 0%, color-mix(in srgb, var(--dsw-alias-bg-base) 60%, transparent) 55%, transparent 100%);\n  animation: dsh-mtc-sweep 2.6s ease-out infinite;\n  pointer-events: none;\n}\n@keyframes dsh-mtc-sweep {\n  0% { left: -300px; }\n  90%, 100% { left: 100%; }\n}\n\n.mtc-title { font-weight: 400; }\n.mtc-sep { flex: none; width: 2px; height: 2px; border-radius: 1px; margin: 0 8px; background: var(--dsw-alias-label-caption); }\n.mtc-summary {\n  flex: 1 1 auto; min-width: 0; overflow: hidden; text-overflow: ellipsis; white-space: nowrap;\n  font-size: 14px; line-height: 24px; color: var(--dsw-alias-label-tertiary);\n}\n.mtc-summary-link {\n  flex: 1 1 auto; min-width: 0; overflow: hidden; text-overflow: ellipsis; white-space: nowrap;\n  margin: 0; padding: 0; border: none; background: none; font: inherit; text-align: left;\n  font-size: 14px; line-height: 24px; color: var(--dsw-alias-label-secondary);\n  text-decoration: underline; text-decoration-color: var(--dsw-alias-label-quaternary);\n  text-underline-offset: 3px; cursor: pointer;\n}\n.mtc-summary-link:hover { color: var(--dsw-alias-label-primary); text-decoration-color: currentColor; }\n.mtc-summary-error { color: var(--dsw-alias-state-error-primary); }\n.mtc-summary-suffix { flex: none; margin-left: 4px; white-space: nowrap; font-size: 14px; line-height: 24px; color: var(--dsw-alias-label-tertiary); }\n\n.mtc-card-body { margin: 4px 0 4px 4px; min-width: 0; }\n.mtc-recovery { margin: 4px 0 4px 4px; white-space: pre-wrap; overflow-wrap: anywhere; font: var(--dsw-font-xs-13); color: var(--dsw-alias-label-tertiary); }\n/* IN/OUT text card for calls without a card primitive (mirrors ToolRow). */\n.mtc-io-card {\n  display: flex; flex-direction: column; min-width: 0;\n  border: 1px solid var(--dsw-alias-border-l2); border-radius: 12px;\n  background: var(--dsw-alias-bg-base);\n}\n.mtc-io-section { display: flex; gap: 10px; padding: 8px 12px; min-width: 0; }\n.mtc-io-label {\n  flex: none; font-size: 11px; line-height: 16px; font-weight: 600;\n  color: var(--dsw-alias-label-tertiary);\n}\n.mtc-io-text {\n  flex: 1 1 auto; min-width: 0; white-space: pre-wrap; overflow-wrap: anywhere;\n  font-size: 13px; line-height: 20px; color: var(--dsw-alias-label-secondary);\n}\n.mtc-io-text[data-error] { color: var(--dsw-alias-state-error-primary); }\n.mtc-io-divider { height: 1px; background: var(--dsw-alias-border-l2); }\n.mtc-inspect {\n  display: inline-flex; align-self: flex-start; align-items: center; gap: 4px;\n  margin: 4px 0 2px 4px; padding: 2px 8px;\n  border: 1px solid var(--dsw-alias-border-l2); border-radius: 999px;\n  background: var(--dsw-alias-bg-base); color: var(--dsw-alias-label-secondary);\n  font-size: 11px; line-height: 16px; cursor: pointer;\n  opacity: 0; transition: opacity 100ms ease;\n}\n.mtc-root:hover .mtc-inspect, .mtc-inspect:focus-visible { opacity: 1; }\n.mtc-inspect:hover { background: var(--dsw-alias-interactive-bg-hover-solid); color: var(--dsw-alias-label-primary); }\n\n/* Compact child rows: each is the main row's tail structure \u2014 [sep dot][path].\n   The dot/path column is set at runtime by the component (it measures the\n   main row's sep offset and sets the --mtc-sep-left custom property on the\n   root); this is only the pre-measure fallback.\n\n   The .mtc-children-collapse wrapper animates the block's height with a\n   grid-template-rows 0fr\u21941fr transition (children stay in the DOM while\n   collapsing, so the slide is smooth instead of popping out). The vertical\n   margin lives on the wrapper (not .mtc-children) so it doesn't leak past the\n   0fr row when collapsed.\n\n   The sep-left indent lives on .mtc-child-row (not .mtc-children) so the\n   expanded .mtc-child-body can align back to the root's left edge via a plain\n   4px margin. When the indent was on .mtc-children + a negative-margin\n   pull-back on .mtc-child-body, the body's left portion was clipped by\n   .mtc-children's overflow:hidden (which is required for the grid collapse\n   animation). */\n.mtc-children-collapse {\n  display: grid;\n  grid-template-rows: 0fr;\n  margin: 0;\n  transition: grid-template-rows 200ms ease-out, margin 200ms ease-out;\n}\n.mtc-children-collapse[data-open] {\n  grid-template-rows: 1fr;\n  margin: 2px 0;\n}\n.mtc-children {\n  display: flex; flex-direction: column; gap: 1px;\n  margin: 0;\n  min-width: 0; min-height: 0; overflow: hidden;\n  opacity: 0;\n  transition: opacity 150ms ease-out;\n}\n.mtc-children-collapse[data-open] .mtc-children {\n  opacity: 1;\n  transition: opacity 150ms ease-out 50ms;\n}\n.mtc-child { display: flex; flex-direction: column; min-width: 0; }\n.mtc-child-row {\n  display: flex; align-items: center; gap: 0; min-width: 0; height: 20px;\n  margin: 0 0 0 var(--mtc-sep-left, 61px); padding: 0; border: 0; border-radius: 4px; background: none;\n  font: inherit; text-align: left; color: var(--dsw-alias-label-secondary); cursor: pointer;\n}\n.mtc-child-row:hover { background: var(--dsw-alias-interactive-bg-hover); color: var(--dsw-alias-label-primary); }\n.mtc-child-row[data-static] { cursor: default; }\n.mtc-child-row[data-static]:hover { background: none; color: var(--dsw-alias-label-secondary); }\n.mtc-child-row .mtc-sep { margin: 0 8px 0 0; }\n.mtc-child-path {\n  flex: 1 1 auto; min-width: 0; overflow: hidden; text-overflow: ellipsis; white-space: nowrap;\n  font-size: 14px; line-height: 20px;\n}\n/* Read-family child paths are open-file links (sidebar preview), same affordance\n   as the main row's summary link. */\n.mtc-child-path-link {\n  flex: 1 1 auto; min-width: 0; overflow: hidden; text-overflow: ellipsis; white-space: nowrap;\n  margin: 0; padding: 0; border: none; background: none; font: inherit; text-align: left;\n  font-size: 14px; line-height: 20px; color: var(--dsw-alias-label-secondary);\n  text-decoration: underline; text-decoration-color: var(--dsw-alias-label-quaternary);\n  text-underline-offset: 3px; cursor: pointer;\n}\n.mtc-child-path-link:hover { color: var(--dsw-alias-label-primary); text-decoration-color: currentColor; }\n.mtc-child-state { flex: none; font-size: 11px; line-height: 16px; color: var(--dsw-alias-label-tertiary); }\n.mtc-child-state[data-error] { color: var(--dsw-alias-state-error-primary); }\n/* The expanded child card aligns to the main card body's column (root + 4px).\n   No negative-margin pull-back is needed because .mtc-children no longer\n   carries the sep-left indent \u2014 only .mtc-child-row does. */\n.mtc-child-body { margin: 2px 0 2px 4px; min-width: 0; }\n\n.mtc-visually-hidden {\n  position: absolute; width: 1px; height: 1px; overflow: hidden;\n  clip: rect(0 0 0 0); white-space: nowrap;\n}\n";
/** Install the stylesheet and return its disposer. */
export declare function installStyles(): () => void;