/* Responsibility: Define the cross-page horizontal chat bar that expands and collapses from the bottom.
 * Implementation: Bottom-right entry, wide bottom panel, compact toolbar/input, independently scrolling messages, and height limits with modal focus on narrow screens.
 * Relationships: assistant-widget.js mounts the template; assistant.js synchronizes visibility and accessibility state.
 * Directory: None. Style sections cover entry, panel, conversations, Markdown, citations, mobile layout, and the explicit write-approval dialog.
 * Variable index: No new variables; consumes design-system.css colors, borders, and --sidebar-width. */
.assistant-launcher { position: fixed; z-index: 1601; right: max(24px, env(safe-area-inset-right)); bottom: max(20px, env(safe-area-inset-bottom)); display: flex; align-items: center; gap: 9px; border: 1px solid var(--accent); border-radius: 28px; padding: 12px 18px; background: var(--accent); color: var(--bg); box-shadow: 0 8px 30px var(--shadow-color); cursor: pointer; font: inherit; font-size: 14px; }
/* Review the complete frozen payload; long values scroll without hiding the decision controls. */
.assistant-approval { width: min(640px, calc(100vw - 32px)); max-height: calc(100dvh - 48px); padding: 24px; border: 1px solid var(--line-strong); border-radius: 16px; background: var(--surface); color: var(--ink); overflow: auto; }
.assistant-approval[open] { display: grid; gap: 16px; }
.assistant-approval::backdrop { background: rgb(0 0 0 / 55%); }
.assistant-approval pre { max-height: 40dvh; overflow: auto; padding: 12px; border: 1px solid var(--line); white-space: pre-wrap; overflow-wrap: anywhere; }
.assistant-approval .actions { display: flex; flex-wrap: wrap; gap: 12px; justify-content: flex-end; }
.assistant-approval-error { color: var(--danger, #d66060); }
.assistant-launcher > span:first-child { font-size: 24px; line-height: 1; }
.assistant-launcher[aria-expanded="true"] { background: var(--surface); color: var(--accent); }
.assistant-panel { position: fixed; z-index: 1600; left: calc(var(--sidebar-width) + 24px); right: 24px; bottom: 16px; max-height: min(460px, calc(100dvh - 120px)); display: grid; grid-template-columns: minmax(0, 1fr) auto; grid-template-rows: auto minmax(0, 1fr) auto; color: var(--ink); background: var(--surface); border: 1px solid var(--line-strong); border-radius: 16px; box-shadow: 0 -8px 48px var(--shadow-color); overflow: hidden; font-size: 13px; }
.assistant-open .assistant-launcher { visibility: hidden; }
.assistant-panel, .assistant-panel * { box-sizing: border-box; }
.assistant-panel[hidden], .assistant-launcher[hidden], .assistant-panel [hidden] { display: none !important; }
.assistant-panel :is(h2,h3,p) { margin: 0; }
.assistant-panel :is(button,textarea,select) { font: inherit; color: var(--ink); background: var(--surface); border: 1px solid var(--line); border-radius: 7px; padding: 8px; }
.assistant-panel button { cursor: pointer; }
.assistant-panel button:disabled { cursor: not-allowed; opacity: .55; }
.assistant-panel textarea { width: 100%; }
.assistant-panel .primary { background: var(--accent); color: var(--bg); }
.assistant-panel .text-btn, .assistant-panel .icon-btn { border: 0; background: transparent; }
.assistant-panel .icon-btn { font-size: 24px; width: 28px; height: 28px; min-height: 28px; padding: 0; }
.assistant-panel a { color: var(--accent); }
.assistant-panel .fine { font-size: 12px; color: var(--muted); }
.assistant-panel .sr-only { position: absolute; width: 1px; height: 1px; overflow: hidden; clip-path: inset(50%); }
.assistant-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 10px 16px;
  grid-column: 1 / -1;
  grid-row: 1;
  flex-shrink: 0;
}

.assistant-heading {
  display: flex;
  gap: 12px;
  align-items: center;
}

.assistant-heading > div {
  display: flex;
  align-items: center;
  gap: 10px;
}

.assistant-heading h2 {
  font-size: 17px;
}

.assistant-mark {
  display: grid;
  place-items: center;
  width: 28px;
  height: 28px;
  border-radius: 11px;
  background: var(--green);
  color: var(--ink);
  font-size: 22px;
}

.assistant-development {
  padding: 3px 7px;
  border: 1px solid var(--line);
  border-radius: 5px;
  color: var(--muted);
  font-size: 11px;
}

.assistant-context {
  display: flex;
  align-items: center;
  gap: 11px;
  grid-column: 2;
  grid-row: 1;
  margin: 0 60px 0 12px;
  max-width: 45vw;
  font-size: 12px;
}

.assistant-context-icon {
  color: var(--muted);
  font-size: 21px;
}

.assistant-context > div {
  flex: 1;
  min-width: 0;
}

.assistant-context > div > span {
  display: none;
}

.assistant-context strong {
  display: block;
  font-size: 12px;
  margin-top: 2px;
  overflow-wrap: anywhere;
}



.assistant-body {
  min-height: 0;
  overflow-y: auto;
  overscroll-behavior: contain;
  grid-column: 1 / -1;
  max-height: 240px;
  padding: 0 16px 10px;
  display: grid;
  grid-template-columns: minmax(180px, 320px) minmax(0, 1fr);
  gap: 4px 16px;
}

.assistant-welcome { grid-column: 2; grid-row: 1; padding: 0; }
#assistant-history { grid-column: 1 / -1; grid-row: 3; }
.assistant-welcome-mark, .assistant-welcome .eyebrow, .assistant-welcome > p:last-child { display: none; }
.assistant-welcome h3 { font-size: 14px; font-weight: 500; }
#assistant-history > .fine { display: none; }
.assistant-shortcut-heading {
  display: none;
}

.assistant-shortcut-heading small {
  font-size: 11px;
  color: var(--muted);
}

.assistant-shortcuts {
  grid-column: 2;
  grid-row: 2;
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.assistant-shortcuts button {
  display: flex;
  align-items: center;
  gap: 12px;
  width: auto;
  padding: 6px 10px;
  border: 1px solid var(--line);
  border-radius: 9px;
  text-align: left;
}

.assistant-shortcuts button:hover {
  background: var(--soft);
  border-color: var(--line);
}

.assistant-task-icon {
  display: grid;
  place-items: center;
  width: 20px;
  height: 20px;
  border-radius: 8px;
  background: var(--bg);
  color: var(--muted);
  font-size: 16px;
  flex-shrink: 0;
}

.assistant-shortcuts button > span:nth-child(2) {
  flex: 1;
}

.assistant-shortcuts strong {
  display: block;
  font-size: 12px;
  font-weight: 550;
}

.assistant-shortcuts small, .assistant-shortcuts button > span:last-child { display: none; }
.assistant-availability { display: none; }
.assistant-composer {
  grid-column: 1 / -1;
  padding: 8px 16px max(8px, env(safe-area-inset-bottom));
  border-top: 1px solid var(--line);
  flex-shrink: 0;
  background: var(--surface);
}

.assistant-composer-heading {
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 11px;
  margin-bottom: 5px;
  color: var(--muted);
}

.assistant-composer-heading button {
  font-size: 11px;
}

.assistant-input-box {
  border: 1px solid var(--line);
  border-radius: 10px;
  overflow: hidden;
}

.assistant-input-box:focus-within {
  border-color: var(--accent);
  box-shadow: 0 0 0 2px var(--shadow-color);
}

.assistant-input-box textarea {
  display: block;
  resize: none;
  border: 0;
  border-radius: 0;
  font-size: 12px;
  line-height: 1.7;
  padding: 8px 12px;
  box-shadow: none;
  min-height: 44px;
  height: 44px;
}

.assistant-input-box textarea::placeholder {
  color: var(--muted);
}

.assistant-send-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 10px;
  padding: 0 10px 10px;
}

.assistant-send-row > span {
  font-size: 11px;
  color: var(--muted);
}

.assistant-send-row button {
  padding: 6px 12px;
  font-size: 11px;
  cursor: pointer;
}

.assistant-draft-note {
  margin-top: 4px;
  font-size: 11px;
  color: var(--muted);
  line-height: 1.7;
}

/* Persisted assistant: Preserve historical text line breaks; keep conversation selection compact and let the horizontal input bar wrap on narrow screens. */
.assistant-session-controls {
  display: flex;
  gap: 8px;
  align-items: center;
  margin-bottom: 0;
  max-width: 460px;
  grid-column: 1;
  grid-row: 1 / 3;
  align-self: center;
}

.assistant-session-controls select {
  min-width: 0;
  flex: 1;
}

.assistant-session-controls button {
  white-space: nowrap;
}

.assistant-message {
  border: 1px solid var(--line);
  border-radius: 9px;
  padding: 12px;
  margin-bottom: 12px;
  background: var(--bg);
}

.assistant-message p {
  white-space: pre-wrap;
  overflow-wrap: anywhere;
  margin: 8px 0 0;
}

/* Markdown applies only to assistant content; wide code and tables scroll internally, while user input and evidence retain original line breaks. */
.assistant-message, #assistant-history { min-width: 0; }
.assistant-markdown { margin-top: 8px; line-height: 1.7; overflow-wrap: anywhere; }
.assistant-markdown :is(p, ul, ol, blockquote, pre, .assistant-markdown-table) { margin: 0 0 12px; }
.assistant-markdown p { white-space: normal; }
.assistant-markdown :is(h1, h2, h3, h4, h5, h6) { margin: 18px 0 8px; line-height: 1.4; font-weight: 650; color: var(--ink); }
.assistant-markdown h1 { font-size: 1.45em; }
.assistant-markdown h2 { font-size: 1.3em; }
.assistant-markdown :is(h3, h4, h5, h6) { font-size: 1.12em; }
.assistant-markdown > :first-child { margin-top: 0; }
.assistant-markdown > :last-child { margin-bottom: 0; }
.assistant-markdown :is(ul, ol) { padding-inline-start: 24px; }
.assistant-markdown li + li { margin-top: 4px; }
.assistant-markdown li > :is(ul, ol) { margin: 4px 0; }
.assistant-markdown li > p { margin-bottom: 4px; }
.assistant-markdown blockquote { border-inline-start: 3px solid var(--accent); padding: 4px 12px; color: var(--muted); }
.assistant-markdown blockquote > :last-child { margin-bottom: 0; }
.assistant-markdown code { padding: 2px 5px; border-radius: 4px; background: var(--surface); font: .92em/1.6 Consolas, 'Courier New', monospace; }
.assistant-markdown pre { max-width: 100%; overflow-x: auto; padding: 12px; border: 1px solid var(--line); border-radius: 7px; background: var(--surface); white-space: pre; overflow-wrap: normal; }
.assistant-markdown pre code { padding: 0; border-radius: 0; background: transparent; white-space: pre; overflow-wrap: normal; }
.assistant-markdown-table { max-width: 100%; overflow-x: auto; border: 1px solid var(--line); border-radius: 7px; }
.assistant-markdown table { width: 100%; border-collapse: collapse; font-size: inherit; }
.assistant-markdown :is(th, td) { padding: 8px 10px; border: 1px solid var(--line); text-align: start; vertical-align: top; min-width: 100px; }
.assistant-markdown th { background: var(--surface); font-weight: 650; }
.assistant-markdown a { text-decoration: underline; text-underline-offset: 3px; }
.assistant-markdown hr { border: 0; border-top: 1px solid var(--line); margin: 16px 0; }
.assistant-markdown :focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; }

.assistant-send-row {
  flex-wrap: wrap;
  gap: 8px;
}

.assistant-send-row>span {
  flex: 1;
}

/* Chat evidence: The outer section starts collapsed, source text scrolls independently, and shared theme variables maintain dark-theme contrast. */
.assistant-sources {
  margin-top: 10px;
  font-size: 13px;
}

.assistant-sources > summary,
.assistant-source > summary {
  cursor: pointer;
  overflow-wrap: anywhere;
}

.assistant-sources > summary,
.assistant-source-note {
  color: var(--muted);
}

.assistant-source-list {
  display: grid;
  gap: 8px;
  margin-top: 8px;
}

.assistant-source {
  border: 1px solid var(--line);
  border-radius: 7px;
  padding: 8px;
  background: var(--surface);
}

.assistant-source-content {
  max-height: 220px;
  overflow: auto;
  white-space: pre-wrap;
  overflow-wrap: anywhere;
  margin-top: 8px;
  padding-top: 8px;
  border-top: 1px solid var(--line);
  font-size: 12px;
  line-height: 1.5;
}

.assistant-source-note {
  font-size: 12px;
}

.assistant-source a {
  display: inline-block;
  margin-top: 8px;
}


@media (max-width: 1000px) {
  body.assistant-open { overflow: hidden; }
  .assistant-panel { left: 8px; right: 8px; bottom: max(8px, env(safe-area-inset-bottom)); max-height: min(520px, 70dvh); }
  .assistant-context { grid-row: 2; grid-column: 1 / -1; margin: 0 16px 6px; max-width: none; }
  .assistant-panel { grid-template-rows: auto auto minmax(0, 1fr) auto; }
  .assistant-body { max-height: 200px; display: flex; flex-direction: column; gap: 6px; }
  .assistant-session-controls { width: 100%; }
  .assistant-header { padding: 8px 16px; }
  .assistant-shortcuts button { padding: 5px 8px; }
  .assistant-send-row > span { flex-basis: 100%; }
}
@media (prefers-reduced-motion: no-preference) {
  .assistant-panel:not([hidden]) { animation: assistant-rise .18s ease-out; }
  @keyframes assistant-rise { from { opacity: 0; transform: translateY(16px); } to { opacity: 1; transform: translateY(0); } }
}