/*
 * collection.css — "The Collection" preview UI (dev-only, see collection.js).
 * Every rule is scoped to body[data-ui="collection"] so the classic UI is untouched.
 * Palette and shape follow the Porsche Design System: black ink on white,
 * neutral greys, hairline rules, small radii, black primary actions.
 */

body[data-ui="collection"] {
  --cv-ink: #010205;
  --cv-paper: #ffffff;
  --cv-wall: #eeeff2;
  --cv-rule: #d8d8db;
  --cv-muted: #6b6d70;
  --cv-strong: #535457;
  --cv-success: #018a16;
  --cv-error: #d5001c;
  --cv-error-wash: #fbe8ea;
  --cv-label-w: 176px;
  --cv-gutter: 40px;
  --cv-page: 1120px;
  --cv-pad: 32px;
  --cv-ease: cubic-bezier(0.16, 1, 0.3, 1);

  font-family: "Porsche Next", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Arial, sans-serif;
  color: var(--cv-ink);
  background: var(--cv-paper);
  -webkit-font-smoothing: antialiased;
}

body[data-ui="collection"]::before { content: none; }

body[data-ui="collection"] #authenticated-view > header,
body[data-ui="collection"] #app { display: none; }

body[data-ui="collection"] :focus-visible {
  outline: 2px solid var(--cv-ink);
  outline-offset: 2px;
}

/* ── Auth wall ────────────────────────────────────────────────────────────── */

body[data-ui="collection"] #auth-wall { background: var(--cv-paper); }
body[data-ui="collection"] .auth-wall-content {
  background: var(--cv-paper);
  border: 1px solid var(--cv-rule);
  border-radius: 8px;
}
body[data-ui="collection"] .auth-wall-title { color: var(--cv-ink); font-weight: 600; }
body[data-ui="collection"] .auth-wall-subtitle,
body[data-ui="collection"] .auth-wall-message { color: var(--cv-muted); }
body[data-ui="collection"] .auth-wall-spinner {
  border-color: var(--cv-rule);
  border-top-color: var(--cv-ink);
}

/* ── Frame ────────────────────────────────────────────────────────────────── */

body[data-ui="collection"] .cv {
  flex: 1;
  min-height: 0;
  display: grid;
  grid-template-rows: auto minmax(0, 1fr) auto;
  grid-template-columns: minmax(0, 1fr);
  background: var(--cv-paper);
}
body[data-ui="collection"] .cv[hidden] { display: none; }

body[data-ui="collection"] .cv-masthead {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 14px var(--cv-pad);
  border-bottom: 1px solid var(--cv-rule);
}

body[data-ui="collection"] .cv-wordmark {
  font-size: 1rem;
  font-weight: 600;
  letter-spacing: 0.01em;
  white-space: nowrap;
}
body[data-ui="collection"] .cv-wordmark span { font-weight: 400; color: var(--cv-strong); }

body[data-ui="collection"] .cv-masthead-actions {
  display: flex;
  align-items: center;
  gap: 16px;
}

body[data-ui="collection"] .cv-btn {
  font: inherit;
  font-size: 0.875rem;
  font-weight: 600;
  min-height: 36px;
  padding: 0 16px;
  color: var(--cv-ink);
  background: var(--cv-paper);
  border: 1px solid var(--cv-ink);
  border-radius: 4px;
  cursor: pointer;
  transition: background-color 160ms var(--cv-ease), color 160ms var(--cv-ease);
}
body[data-ui="collection"] .cv-btn:hover:not(:disabled) { background: var(--cv-ink); color: var(--cv-paper); }
body[data-ui="collection"] .cv-btn:disabled {
  color: var(--cv-muted);
  border-color: var(--cv-rule);
  cursor: not-allowed;
}

body[data-ui="collection"] .cv-role {
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.04em;
  padding: 3px 8px;
  border: 1px solid var(--cv-rule);
  border-radius: 4px;
  color: var(--cv-strong);
}
body[data-ui="collection"] .cv-role.is-admin {
  background: var(--cv-ink);
  border-color: var(--cv-ink);
  color: var(--cv-paper);
}

/* Earlier chats: a disclosure panel hung under the masthead. */
body[data-ui="collection"] .cv-masthead { position: relative; z-index: 5; }
body[data-ui="collection"] .cv-history-wrap { position: relative; }
body[data-ui="collection"] .cv-btn.is-quiet {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  border-color: var(--cv-rule);
  font-weight: 400;
}
body[data-ui="collection"] .cv-btn.is-quiet[hidden] { display: none; }
body[data-ui="collection"] .cv-btn.is-quiet:hover:not(:disabled),
body[data-ui="collection"] .cv-btn.is-quiet[aria-expanded="true"] {
  background: var(--cv-paper);
  color: var(--cv-ink);
  border-color: var(--cv-ink);
}
body[data-ui="collection"] .cv-count {
  min-width: 20px;
  height: 20px;
  padding: 0 6px;
  display: inline-grid;
  place-items: center;
  border-radius: 10px;
  background: var(--cv-wall);
  font-size: 0.75rem;
  font-weight: 600;
  font-variant-numeric: tabular-nums;
}

body[data-ui="collection"] .cv-history {
  position: absolute;
  top: calc(100% + 8px);
  right: 0;
  width: min(380px, calc(100vw - 2 * var(--cv-pad)));
  max-height: min(60vh, 520px);
  display: flex;
  flex-direction: column;
  background: var(--cv-paper);
  border: 1px solid var(--cv-rule);
  border-radius: 8px;
  box-shadow: 0 1px 2px rgba(1, 2, 5, 0.04), 0 10px 32px rgba(1, 2, 5, 0.12);
}
body[data-ui="collection"] .cv-history[hidden] { display: none; }
body[data-ui="collection"] .cv-history-head {
  padding: 14px 16px 10px;
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: var(--cv-strong);
  border-bottom: 1px solid var(--cv-rule);
}
body[data-ui="collection"] .cv-history-list {
  list-style: none;
  margin: 0;
  padding: 4px 0;
  overflow-y: auto;
  overscroll-behavior: contain;
}
body[data-ui="collection"] .cv-history-item {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  align-items: center;
}
body[data-ui="collection"] .cv-history-item + .cv-history-item { border-top: 1px solid var(--cv-wall); }
body[data-ui="collection"] .cv-history-open {
  display: grid;
  gap: 2px;
  min-height: 44px;
  padding: 10px 8px 10px 16px;
  font: inherit;
  text-align: left;
  color: var(--cv-ink);
  background: none;
  border: 0;
  cursor: pointer;
  transition: background-color 160ms var(--cv-ease);
}
body[data-ui="collection"] .cv-history-open:hover { background: var(--cv-wall); }
body[data-ui="collection"] .cv-history-title {
  font-size: 0.875rem;
  font-weight: 600;
  line-height: 1.35;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
  overflow-wrap: anywhere;
}
body[data-ui="collection"] .cv-history-meta {
  font-size: 0.75rem;
  color: var(--cv-muted);
  font-variant-numeric: tabular-nums;
}
body[data-ui="collection"] .cv-history-remove {
  width: 44px;
  height: 44px;
  margin-right: 4px;
  display: grid;
  place-items: center;
  color: var(--cv-muted);
  background: none;
  border: 0;
  border-radius: 4px;
  cursor: pointer;
  transition: color 160ms var(--cv-ease), background-color 160ms var(--cv-ease);
}
body[data-ui="collection"] .cv-history-remove:hover { color: var(--cv-error); background: var(--cv-error-wash); }
body[data-ui="collection"] .cv-history-open:focus-visible,
body[data-ui="collection"] .cv-history-remove:focus-visible {
  outline: 2px solid var(--cv-ink);
  outline-offset: -2px;
}
body[data-ui="collection"] .cv-history-note {
  padding: 10px 16px 12px;
  font-size: 0.75rem;
  color: var(--cv-muted);
  border-top: 1px solid var(--cv-rule);
}

/* Preview switch */
body[data-ui="collection"] .cv-toggle {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font: inherit;
  font-size: 0.8125rem;
  color: var(--cv-strong);
  background: none;
  border: 0;
  min-height: 36px;
  cursor: pointer;
}
body[data-ui="collection"] .cv-toggle[hidden] { display: none; }
body[data-ui="collection"] .cv-toggle-track {
  position: relative;
  width: 32px;
  height: 18px;
  border-radius: 9px;
  background: var(--cv-muted);
  transition: background-color 160ms var(--cv-ease);
}
body[data-ui="collection"] .cv-toggle-track::after {
  content: "";
  position: absolute;
  top: 3px;
  left: 3px;
  width: 12px;
  height: 12px;
  border-radius: 50%;
  background: var(--cv-paper);
  transition: transform 200ms var(--cv-ease);
}
body[data-ui="collection"] .cv-toggle[aria-checked="true"] .cv-toggle-track { background: var(--cv-ink); }
body[data-ui="collection"] .cv-toggle[aria-checked="true"] .cv-toggle-track::after { transform: translateX(14px); }
body[data-ui="collection"] .cv-toggle:hover { color: var(--cv-ink); }

/* ── Gallery (scroll container) ───────────────────────────────────────────── */

body[data-ui="collection"] .cv-gallery {
  overflow-y: auto;
  overscroll-behavior: contain;
  scroll-padding-bottom: 24px;
}
body[data-ui="collection"] .cv-gallery:focus { outline: none; }

body[data-ui="collection"] .cv-foyer,
body[data-ui="collection"] .cv-exhibits {
  width: 100%;
  max-width: var(--cv-page);
  margin: 0 auto;
  padding-left: var(--cv-pad);
  padding-right: var(--cv-pad);
}

/* ── Foyer (empty state) ──────────────────────────────────────────────────── */

body[data-ui="collection"] .cv-foyer {
  display: grid;
  grid-template-columns: minmax(0, 1.15fr) minmax(0, 1fr);
  gap: 56px;
  align-items: center;
  min-height: 100%;
  padding-top: 48px;
  padding-bottom: 48px;
}
body[data-ui="collection"] .cv-foyer[hidden] { display: none; }

body[data-ui="collection"] .cv-foyer-exhibit img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 4 / 3;
  object-fit: cover;
  object-position: center 42%;
  background: var(--cv-wall);
}
body[data-ui="collection"] .cv-key { font-weight: 600; color: var(--cv-ink); }

body[data-ui="collection"] .cv-foyer-text h2 {
  font-size: clamp(1.75rem, 1.1rem + 1.6vw, 2.5rem);
  line-height: 1.15;
  font-weight: 600;
  letter-spacing: -0.02em;
  text-wrap: balance;
}
body[data-ui="collection"] #cv-greeting {
  display: block;
  margin-bottom: 8px;
  font-size: 1.125rem;
  font-weight: 400;
  letter-spacing: 0;
  color: var(--cv-strong);
}
body[data-ui="collection"] .cv-foyer-lede {
  margin-top: 16px;
  max-width: 48ch;
  font-size: 1rem;
  line-height: 1.6;
  color: var(--cv-strong);
}

body[data-ui="collection"] .cv-starters {
  list-style: none;
  margin-top: 32px;
  border-top: 1px solid var(--cv-ink);
}
body[data-ui="collection"] .cv-starters li { border-bottom: 1px solid var(--cv-rule); }
body[data-ui="collection"] .cv-starter {
  display: grid;
  grid-template-columns: 1fr auto;
  grid-template-areas: "title arrow" "desc arrow";
  column-gap: 16px;
  row-gap: 2px;
  width: 100%;
  padding: 14px 0;
  font: inherit;
  text-align: left;
  color: var(--cv-ink);
  background: none;
  border: 0;
  cursor: pointer;
}
body[data-ui="collection"] .cv-starter::after {
  content: "→";
  grid-area: arrow;
  align-self: center;
  font-size: 1.125rem;
  transition: transform 200ms var(--cv-ease);
}
body[data-ui="collection"] .cv-starter-title { grid-area: title; font-weight: 600; }
body[data-ui="collection"] .cv-starter-desc { grid-area: desc; font-size: 0.875rem; color: var(--cv-strong); }
body[data-ui="collection"] .cv-starter:hover .cv-starter-title { text-decoration: underline; text-underline-offset: 3px; }
body[data-ui="collection"] .cv-starter:hover::after { transform: translateX(4px); }

/* ── Exhibits (conversation) ──────────────────────────────────────────────── */

body[data-ui="collection"] .cv-exhibits {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 64px;
  padding-top: 40px;
  padding-bottom: 48px;
}
body[data-ui="collection"] .cv-exhibits:empty { display: none; }

body[data-ui="collection"] .cv-question {
  margin-left: calc(var(--cv-label-w) + var(--cv-gutter));
  max-width: 70ch;
}
body[data-ui="collection"] .cv-question-text {
  font-size: 1.25rem;
  line-height: 1.4;
  font-weight: 600;
  letter-spacing: -0.01em;
  white-space: pre-wrap;
  overflow-wrap: anywhere;
}
body[data-ui="collection"] .cv-question-meta {
  margin-top: 4px;
  font-size: 0.8125rem;
  color: var(--cv-muted);
}
body[data-ui="collection"] .cv-question-files {
  list-style: none;
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 10px;
}

body[data-ui="collection"] .cv-panel {
  position: relative;
  display: grid;
  grid-template-columns: var(--cv-label-w) minmax(0, 1fr);
  grid-template-areas: "label body" "sources body";
  grid-template-rows: auto 1fr;
  column-gap: var(--cv-gutter);
  margin-top: 24px;
  padding-top: 20px;
  border-top: 1px solid var(--cv-ink);
}

/* The one moving part: a 911 drives along the hanging rail while a reply is in
   flight. multiply drops the photo's white ground onto the white wall. */
body[data-ui="collection"] .cv-panel::before {
  content: none;
  position: absolute;
  left: 0;
  right: 0;
  bottom: calc(100% + 1px);
  height: 19px;
  background: url("assets/porsche-911-side.jpg") no-repeat;
  background-size: 64px 19px;
  background-position: -64px 100%;
  mix-blend-mode: multiply;
  pointer-events: none;
}
body[data-ui="collection"] .cv-exhibit[data-status="sending"] .cv-panel::before,
body[data-ui="collection"] .cv-exhibit[data-status="thinking"] .cv-panel::before,
body[data-ui="collection"] .cv-exhibit[data-status="writing"] .cv-panel::before {
  content: "";
  animation: cv-drive 2.6s cubic-bezier(0.37, 0, 0.63, 1) infinite;
}
@keyframes cv-drive {
  from { background-position: -64px 100%; }
  to { background-position: calc(100% + 64px) 100%; }
}

body[data-ui="collection"] .cv-label {
  grid-area: label;
  display: flex;
  flex-direction: column;
  gap: 14px;
  font-size: 0.8125rem;
  line-height: 1.4;
}
body[data-ui="collection"] .cv-no {
  font-weight: 600;
  font-variant-numeric: tabular-nums;
  letter-spacing: 0.02em;
}

body[data-ui="collection"] .cv-status {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 0 8px;
  color: var(--cv-strong);
  font-variant-numeric: tabular-nums;
}
body[data-ui="collection"] .cv-status-text { font-weight: 600; color: var(--cv-ink); }
body[data-ui="collection"] .cv-elapsed { margin-left: -6px; }
body[data-ui="collection"] .cv-status-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--cv-muted);
  flex: none;
}
body[data-ui="collection"] .cv-exhibit[data-status="sending"] .cv-status-dot,
body[data-ui="collection"] .cv-exhibit[data-status="thinking"] .cv-status-dot,
body[data-ui="collection"] .cv-exhibit[data-status="writing"] .cv-status-dot { background: var(--cv-ink); }
body[data-ui="collection"] .cv-exhibit[data-status="done"] .cv-status-dot { background: var(--cv-success); }
body[data-ui="collection"] .cv-exhibit[data-status="failed"] .cv-status-dot,
body[data-ui="collection"] .cv-exhibit[data-status="interrupted"] .cv-status-dot { background: var(--cv-error); }
body[data-ui="collection"] .cv-exhibit[data-status="failed"] .cv-status-text,
body[data-ui="collection"] .cv-exhibit[data-status="interrupted"] .cv-status-text { color: var(--cv-error); }

body[data-ui="collection"] .cv-actions {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 2px;
}
body[data-ui="collection"] .cv-action {
  font: inherit;
  font-size: 0.8125rem;
  font-weight: 600;
  min-height: 32px;
  padding: 0;
  color: var(--cv-ink);
  background: none;
  border: 0;
  cursor: pointer;
  text-decoration: underline;
  text-decoration-color: var(--cv-rule);
  text-underline-offset: 4px;
  transition: text-decoration-color 160ms var(--cv-ease);
}
body[data-ui="collection"] .cv-action:hover:not(:disabled) { text-decoration-color: currentColor; }
body[data-ui="collection"] .cv-action:disabled {
  color: var(--cv-muted);
  cursor: not-allowed;
  text-decoration: none;
}
body[data-ui="collection"] .cv-action.is-stop {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 0 12px;
  color: var(--cv-paper);
  background: var(--cv-ink);
  border-radius: 4px;
  text-decoration: none;
}
body[data-ui="collection"] .cv-action.is-stop::before,
body[data-ui="collection"] .cv-stop::before {
  content: "";
  width: 8px;
  height: 8px;
  background: currentColor;
}
body[data-ui="collection"] .cv-action.is-confirmed { color: var(--cv-success); text-decoration: none; }

body[data-ui="collection"] .cv-action.is-icon {
  position: relative;
  display: inline-grid;
  place-items: center;
  width: 32px;
  height: 32px;
  min-height: 0;
  color: var(--cv-strong);
  border-radius: 4px;
  text-decoration: none;
  transition: color 160ms var(--cv-ease), background-color 160ms var(--cv-ease);
}
/* Optically align the first icon's glyph with the status text above it. */
body[data-ui="collection"] .cv-action.is-stop[hidden] + .cv-action.is-icon { margin-left: -7px; }
body[data-ui="collection"] .cv-action.is-icon:hover:not(:disabled) {
  color: var(--cv-ink);
  background: var(--cv-wall);
}
body[data-ui="collection"] .cv-action.is-icon:disabled { color: var(--cv-muted); opacity: 0.5; }
body[data-ui="collection"] .cv-action.is-icon.is-confirmed { color: var(--cv-success); }

body[data-ui="collection"] .cv-tip {
  --cv-tip-x: -50%;
  position: absolute;
  top: calc(100% + 6px);
  left: 50%;
  z-index: 5;
  width: max-content;
  max-width: 220px;
  padding: 5px 8px;
  font-size: 0.75rem;
  font-weight: 600;
  line-height: 1.35;
  text-align: left;
  color: var(--cv-paper);
  background: var(--cv-ink);
  border-radius: 4px;
  pointer-events: none;
  opacity: 0;
  visibility: hidden;
  transform: translate(var(--cv-tip-x), -2px);
  transition: opacity 120ms var(--cv-ease), transform 120ms var(--cv-ease), visibility 0s linear 120ms;
}
/* The first icon's tip grows rightwards so it never leaves the viewport's left edge. */
body[data-ui="collection"] .cv-action.is-stop[hidden] + .cv-action.is-icon .cv-tip { --cv-tip-x: 0%; left: 0; }
body[data-ui="collection"] .cv-action.is-icon:hover .cv-tip,
body[data-ui="collection"] .cv-action.is-icon:focus-visible .cv-tip {
  opacity: 1;
  visibility: visible;
  transform: translate(var(--cv-tip-x), 0);
  transition-delay: 250ms;
}
body[data-ui="collection"] .cv-action.is-icon:focus-visible .cv-tip { transition-delay: 0s; }

body[data-ui="collection"] .cv-sources {
  grid-area: sources;
  align-self: start;
  /* Sticks inside its grid area, so it travels with a long answer and stops at the panel's end. */
  position: sticky;
  top: 16px;
  margin-top: 20px;
  font-size: 0.8125rem;
  line-height: 1.4;
}
body[data-ui="collection"] .cv-sources:empty { display: none; }
body[data-ui="collection"] .cv-sources-title {
  font-size: 0.8125rem;
  font-weight: 600;
  padding-top: 12px;
  border-top: 1px solid var(--cv-rule);
}
body[data-ui="collection"] .cv-sources-empty { margin-top: 4px; color: var(--cv-muted); }
body[data-ui="collection"] .cv-sources-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 8px;
  margin-top: 10px;
  /* Eight cards can outgrow a short window; scroll the list rather than the sticky block. */
  max-height: calc(100dvh - 320px);
  overflow-y: auto;
  overscroll-behavior: contain;
}
body[data-ui="collection"] .cv-source {
  position: relative;
  display: flex;
  flex-direction: column;
  gap: 2px;
  padding: 10px 28px 10px 12px;
  color: var(--cv-ink);
  text-decoration: none;
  background: var(--cv-paper);
  border: 1px solid var(--cv-rule);
  border-radius: 4px;
  transition: border-color 160ms var(--cv-ease), background-color 160ms var(--cv-ease);
}
body[data-ui="collection"] .cv-source::after {
  content: "↗";
  position: absolute;
  top: 9px;
  right: 10px;
  color: var(--cv-muted);
  transition: color 160ms var(--cv-ease), transform 160ms var(--cv-ease);
}
body[data-ui="collection"] .cv-source:hover {
  border-color: var(--cv-ink);
  background: var(--cv-wall);
}
body[data-ui="collection"] .cv-source:hover::after {
  color: var(--cv-ink);
  transform: translate(2px, -2px);
}
body[data-ui="collection"] .cv-source-title {
  font-weight: 600;
  overflow-wrap: anywhere;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}
body[data-ui="collection"] .cv-source-host {
  color: var(--cv-muted);
  font-size: 0.75rem;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

/* ── Answer typography ────────────────────────────────────────────────────── */

body[data-ui="collection"] .cv-body {
  grid-area: body;
  min-width: 0;
  max-width: 72ch;
}
body[data-ui="collection"] .cv-answer {
  font-size: 1rem;
  line-height: 1.65;
  overflow-wrap: break-word;
}
body[data-ui="collection"] .cv-answer > * + * { margin-top: 0.9em; }
body[data-ui="collection"] .cv-answer :is(h3, h4, h5, h6) {
  line-height: 1.3;
  font-weight: 600;
  letter-spacing: -0.01em;
  text-wrap: balance;
}
body[data-ui="collection"] .cv-answer h3 { font-size: 1.375rem; }
body[data-ui="collection"] .cv-answer h4 { font-size: 1.125rem; }
body[data-ui="collection"] .cv-answer :is(h5, h6) { font-size: 1rem; }
body[data-ui="collection"] .cv-answer > :is(h3, h4, h5, h6):not(:first-child) { margin-top: 1.6em; }
body[data-ui="collection"] .cv-answer > :is(h3, h4, h5, h6) + * { margin-top: 0.5em; }
body[data-ui="collection"] .cv-answer :is(ul, ol) { padding-left: 1.4em; }
body[data-ui="collection"] .cv-answer li + li { margin-top: 0.35em; }
body[data-ui="collection"] .cv-answer li > :is(ul, ol) { margin-top: 0.35em; }
body[data-ui="collection"] .cv-answer li::marker { color: var(--cv-strong); }
body[data-ui="collection"] .cv-answer a { color: var(--cv-ink); text-underline-offset: 3px; }
body[data-ui="collection"] .cv-answer a:hover { text-decoration-thickness: 2px; }
body[data-ui="collection"] .cv-answer strong { font-weight: 600; }
body[data-ui="collection"] .cv-answer :not(pre) > code {
  font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  font-size: 0.875em;
  padding: 0.1em 0.35em;
  background: var(--cv-wall);
  border-radius: 4px;
}
body[data-ui="collection"] .cv-answer .cv-code {
  font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  font-size: 0.875rem;
  line-height: 1.55;
  padding: 16px;
  background: var(--cv-wall);
  border-radius: 4px;
  overflow-x: auto;
}
body[data-ui="collection"] .cv-answer blockquote {
  padding-left: 16px;
  border-left: 1px solid var(--cv-ink);
  color: var(--cv-strong);
}
body[data-ui="collection"] .cv-answer hr { border: 0; border-top: 1px solid var(--cv-rule); }
body[data-ui="collection"] .cv-table-wrap { overflow-x: auto; }
body[data-ui="collection"] .cv-answer table {
  border-collapse: collapse;
  font-size: 0.9375rem;
  line-height: 1.45;
  min-width: 100%;
}
body[data-ui="collection"] .cv-answer :is(th, td) {
  padding: 8px 16px 8px 0;
  text-align: left;
  vertical-align: top;
  border-bottom: 1px solid var(--cv-rule);
}
body[data-ui="collection"] .cv-answer th { font-weight: 600; border-bottom-color: var(--cv-ink); }
/* Agent progress: a quiet checklist while waiting, one provenance line after. */
body[data-ui="collection"] .cv-trail:empty { display: none; }
body[data-ui="collection"] .cv-trail-list {
  display: grid;
  gap: 10px;
  margin: 0;
  padding: 0;
  list-style: none;
  font-size: 0.9375rem;
  line-height: 1.4;
}
body[data-ui="collection"] .cv-trail-step {
  display: grid;
  grid-template-columns: 16px auto auto;
  justify-content: start;
  align-items: center;
  column-gap: 10px;
}
body[data-ui="collection"] .cv-trail-step.is-done { color: var(--cv-muted); }
body[data-ui="collection"] .cv-trail-step.is-active {
  color: var(--cv-ink);
  font-weight: 500;
  animation: cv-step-in 0.36s var(--cv-ease);
}
body[data-ui="collection"] .cv-trail svg {
  width: 14px;
  height: 14px;
  justify-self: center;
}
body[data-ui="collection"] .cv-trail-mark {
  justify-self: center;
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--cv-ink);
}
body[data-ui="collection"] .cv-trail-count {
  color: var(--cv-muted);
  font-weight: 400;
  font-variant-numeric: tabular-nums;
}
body[data-ui="collection"] .cv-trail-summary {
  display: flex;
  align-items: baseline;
  gap: 8px;
  margin-bottom: 16px;
  font-size: 0.8125rem;
  line-height: 1.5;
  color: var(--cv-muted);
}
body[data-ui="collection"] .cv-trail-summary svg { flex: none; transform: translateY(2px); }
body[data-ui="collection"] .cv-trail-sep { color: var(--cv-rule); }
@keyframes cv-step-in {
  from { opacity: 0; transform: translateY(4px); }
  to { opacity: 1; transform: none; }
}

body[data-ui="collection"] .cv-error {
  margin-top: 16px;
  padding: 12px 16px;
  font-size: 0.9375rem;
  line-height: 1.5;
  color: var(--cv-error);
  background: var(--cv-error-wash);
  border-radius: 4px;
}

/* ── Files ────────────────────────────────────────────────────────────────── */

body[data-ui="collection"] .cv-file {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  max-width: 100%;
  padding: 4px 4px 4px 4px;
  font-size: 0.8125rem;
  border: 1px solid var(--cv-rule);
  border-radius: 4px;
  background: var(--cv-paper);
}
body[data-ui="collection"] .cv-file.is-static { padding-right: 10px; }
body[data-ui="collection"] .cv-file-tag {
  font-size: 0.6875rem;
  font-weight: 700;
  letter-spacing: 0.04em;
  padding: 2px 5px;
  color: var(--cv-paper);
  background: var(--cv-ink);
  border-radius: 2px;
}
body[data-ui="collection"] .cv-file-name {
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  max-width: 28ch;
}
body[data-ui="collection"] .cv-file-size { color: var(--cv-muted); font-variant-numeric: tabular-nums; }
body[data-ui="collection"] .cv-file-remove {
  font: inherit;
  font-size: 0.8125rem;
  font-weight: 600;
  min-height: 28px;
  padding: 0 8px;
  color: var(--cv-ink);
  background: none;
  border: 0;
  border-left: 1px solid var(--cv-rule);
  cursor: pointer;
}
body[data-ui="collection"] .cv-file-remove:hover { color: var(--cv-error); }

/* ── Dock / composer ──────────────────────────────────────────────────────── */

body[data-ui="collection"] .cv-dock {
  padding: 16px var(--cv-pad) 18px;
  background: var(--cv-paper);
}
body[data-ui="collection"] .cv-composer {
  /* The gallery's 1120px includes its side padding; the dock already pads, so subtract it here. */
  max-width: calc(var(--cv-page) - 2 * var(--cv-pad));
  margin: 0 auto;
  padding-left: calc(var(--cv-label-w) + var(--cv-gutter));
}

body[data-ui="collection"] .cv-notice {
  margin-bottom: 8px;
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--cv-error);
}
body[data-ui="collection"] .cv-notice:empty { display: none; }

body[data-ui="collection"] .cv-files {
  list-style: none;
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 8px;
}

body[data-ui="collection"] .cv-composer-row {
  display: flex;
  align-items: flex-end;
  gap: 8px;
  padding: 6px;
  border: 1px solid var(--cv-rule);
  border-radius: 8px;
  background: var(--cv-paper);
  box-shadow:
    0 1px 2px rgba(1, 2, 5, 0.04),
    0 4px 16px rgba(1, 2, 5, 0.06);
  transition: border-color 160ms var(--cv-ease), box-shadow 160ms var(--cv-ease);
}
body[data-ui="collection"] .cv-composer-row:hover { border-color: #c4c5c8; }
/* Focus stays perceivable (muted grey is > 3:1 on paper) and the shadow lifts, without a heavy black ring. */
body[data-ui="collection"] .cv-composer-row:focus-within {
  border-color: var(--cv-muted);
  box-shadow:
    0 1px 2px rgba(1, 2, 5, 0.06),
    0 10px 32px rgba(1, 2, 5, 0.12);
}
body[data-ui="collection"] .cv.is-dropping .cv-composer-row {
  border-style: dashed;
  border-color: var(--cv-ink);
  background: var(--cv-wall);
}

body[data-ui="collection"] #cv-prompt {
  flex: 1;
  min-width: 0;
  min-height: 40px;
  max-height: 40vh;
  padding: 9px 4px;
  font: inherit;
  font-size: 1rem;
  line-height: 1.4;
  color: var(--cv-ink);
  background: transparent;
  border: 0;
  outline: none;
  resize: none;
}
body[data-ui="collection"] #cv-prompt::placeholder { color: var(--cv-muted); }

body[data-ui="collection"] .cv-icon-btn {
  display: grid;
  place-items: center;
  width: 40px;
  height: 40px;
  flex: none;
  color: var(--cv-ink);
  background: none;
  border: 0;
  border-radius: 4px;
  cursor: pointer;
}
body[data-ui="collection"] .cv-icon-btn:hover { background: var(--cv-wall); }

body[data-ui="collection"] .cv-send,
body[data-ui="collection"] .cv-stop {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  flex: none;
  min-width: 88px;
  height: 40px;
  padding: 0 20px;
  font: inherit;
  font-size: 0.9375rem;
  font-weight: 600;
  border-radius: 4px;
  cursor: pointer;
  transition: background-color 160ms var(--cv-ease), color 160ms var(--cv-ease);
}
body[data-ui="collection"] .cv-send {
  color: var(--cv-paper);
  background: var(--cv-ink);
  border: 1px solid var(--cv-ink);
}
body[data-ui="collection"] .cv-send:hover { background: var(--cv-strong); border-color: var(--cv-strong); }
body[data-ui="collection"] .cv-stop {
  color: var(--cv-ink);
  background: var(--cv-paper);
  border: 1px solid var(--cv-ink);
}
body[data-ui="collection"] .cv-stop:hover { background: var(--cv-wall); }
body[data-ui="collection"] .cv-send[hidden],
body[data-ui="collection"] .cv-stop[hidden] { display: none; }

body[data-ui="collection"] .cv-hint {
  margin-top: 8px;
  font-size: 0.75rem;
  line-height: 1.5;
  color: var(--cv-muted);
}

/* ── Small screens ────────────────────────────────────────────────────────── */

@media (max-width: 900px) {
  body[data-ui="collection"] {
    --cv-label-w: 136px;
    --cv-gutter: 24px;
    --cv-pad: 24px;
  }
  body[data-ui="collection"] .cv-foyer { grid-template-columns: 1fr; gap: 32px; align-content: start; }
  body[data-ui="collection"] .cv-foyer-exhibit img { aspect-ratio: 16 / 9; }
}

@media (max-width: 680px) {
  body[data-ui="collection"] { --cv-pad: 16px; }
  body[data-ui="collection"] .cv-masthead { flex-wrap: wrap; padding-top: 10px; padding-bottom: 10px; row-gap: 4px; }
  body[data-ui="collection"] .cv-masthead-actions { flex-wrap: wrap; justify-content: flex-end; gap: 4px 12px; margin-left: auto; min-width: 0; }
  body[data-ui="collection"] .cv-masthead .cv-btn,
  body[data-ui="collection"] .cv-toggle { min-height: 44px; }
  body[data-ui="collection"] .cv-history-wrap { position: static; }
  body[data-ui="collection"] .cv-history { left: var(--cv-pad); right: var(--cv-pad); width: auto; top: calc(100% - 4px); }
  body[data-ui="collection"] .cv-foyer { padding-top: 24px; padding-bottom: 24px; }
  body[data-ui="collection"] .cv-starter { padding: 16px 0; }

  body[data-ui="collection"] .cv-exhibits { gap: 48px; padding-top: 24px; }
  body[data-ui="collection"] .cv-question { margin-left: 0; }
  body[data-ui="collection"] .cv-panel {
    grid-template-columns: minmax(0, 1fr);
    grid-template-areas: "label" "body" "sources";
    grid-template-rows: auto;
    row-gap: 16px;
    padding-top: 12px;
  }
  body[data-ui="collection"] .cv-label {
    flex-direction: row;
    flex-wrap: wrap;
    align-items: center;
    gap: 4px 16px;
  }
  body[data-ui="collection"] .cv-actions { flex-direction: row; flex-wrap: wrap; gap: 4px; width: 100%; }
  body[data-ui="collection"] .cv-action { min-height: 44px; }
  body[data-ui="collection"] .cv-action.is-icon { width: 44px; height: 44px; }
  body[data-ui="collection"] .cv-action.is-stop[hidden] + .cv-action.is-icon { margin-left: -13px; }
  body[data-ui="collection"] .cv-sources { margin-top: 0; position: static; }
  body[data-ui="collection"] .cv-sources-list {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(min(100%, 200px), 1fr));
    max-height: none;
    overflow: visible;
  }
  body[data-ui="collection"] .cv-source { min-height: 44px; }

  body[data-ui="collection"] .cv-dock { padding: 10px var(--cv-pad) 12px; }
  body[data-ui="collection"] .cv-composer { padding-left: 0; }
  body[data-ui="collection"] .cv-send,
  body[data-ui="collection"] .cv-stop { min-width: 0; padding: 0 16px; height: 44px; }
  body[data-ui="collection"] .cv-icon-btn { width: 44px; height: 44px; }
  body[data-ui="collection"] .cv-hint { display: none; }
  body[data-ui="collection"] .cv-file-name { max-width: 18ch; }
}

/* Touch screens have no hover, so the names sit beside the icons instead of in tips. */
@media (hover: none) {
  body[data-ui="collection"] .cv-action.is-icon {
    display: inline-flex;
    gap: 6px;
    width: auto;
    min-width: 44px;
    height: 44px;
    padding: 0 10px;
  }
  body[data-ui="collection"] .cv-action.is-stop[hidden] + .cv-action.is-icon { margin-left: -10px; }
  body[data-ui="collection"] .cv-tip {
    position: static;
    padding: 0;
    font-size: 0.8125rem;
    color: inherit;
    background: none;
    opacity: 1;
    visibility: visible;
    transform: none;
    transition: none;
  }
}

@media (prefers-reduced-motion: reduce) {
  /* The 911 parks at the start of the rail instead of driving. */
  body[data-ui="collection"] .cv-exhibit[data-status] .cv-panel::before {
    animation: none;
    background-position: 0 100%;
  }
  body[data-ui="collection"] .cv * { transition: none; }
  body[data-ui="collection"] .cv-trail-step.is-active { animation: none; }
}