/* ---------------------------------------------------------------------------
   assistant/assistant.css — the AI assistant's chat surface (owner item 2).

   The shape is borrowed, reference by reference: ChatGPT's centred column and
   in-field composer, Glean's source chips under the field, Airtable's "New
   chat" panel. The PALETTE is Loopable's own — see AssistantPage.tsx's note on
   why the dark canvas and the vendor logos are the parts not copied.

   EVERY FONT SIZE IS A `--lp-fs-*` TOKEN AND EVERY COLOUR A `--lp-*` TOKEN.
   Wave-21 R5 is gated app-wide over every CSS file under src, and a literal
   here reds `web_ui` for the whole tree. No emojis, no ALL-CAPS chrome
   (DESIGN.md R6).

   AND DO NOT WRITE A GLOB IN THIS COMMENT: a star-star followed by a slash is
   the CSS comment terminator, and `lightningcss` then dies far from the cause.
--------------------------------------------------------------------------- */

.as-chat {
  display: flex;
  width: 100%;
  height: 100%;
  min-width: 0;
  overflow: hidden;
  background: var(--lp-surface);
}

/* ── Airtable's panel: New chat, then the history ─────────────────────────── */

.as-history {
  flex: 0 0 var(--lp-rail-w);
  width: var(--lp-rail-w);
  min-width: var(--lp-rail-w);
  height: 100%;
  box-sizing: border-box;
  display: flex;
  flex-direction: column;
  padding: 10px 8px;
  border-right: 1px solid var(--lp-line);
  background: var(--lp-surface);
  overflow: hidden;
}

/* ── R14 / C2: the Chat / Query toggle, directly above New chat ───────────── */

.as-mode-toggle {
  flex: 0 0 auto;
  display: flex;
  gap: 2px;
  margin-bottom: 10px;
  padding: 2px;
  border-radius: var(--lp-r-md);
  background: var(--lp-surface-2);
}

.as-mode {
  flex: 1 1 0;
  min-width: 0;
  min-height: 26px;
  padding: 4px 8px;
  border: 0;
  border-radius: 6px;
  background: transparent;
  color: var(--lp-muted);
  font: inherit;
  font-size: var(--lp-fs-2xs);
  font-weight: 600;
  cursor: pointer;
}

.as-mode:hover { color: var(--lp-ink); }
.as-mode.is-on { background: var(--lp-surface); color: var(--lp-ink); }

/* The Query list is the SAME `QueryRail` the standalone page renders — only its host changed.
   These are the overrides a rail needs when it is nested inside a panel that is already one rail
   wide: it must FILL that panel rather than claim a second `--lp-rail-w` beside it, and it must
   not draw a second divider against the one `.as-history` already has.
   `.qy-rail-ask` goes because it links to the Assistant, which is the surface it is now inside. */
.as-history .qy-rail {
  flex: 1 1 auto;
  width: auto;
  min-width: 0;
  height: auto;
  min-height: 0;
  padding: 0;
  border-right: 0;
}

.as-history .qy-rail-ask { display: none; }

/* Query fills the conversation column while the toggle is on Query. */
.as-conversation > .shell-db-frame,
.as-conversation > .qy-empty {
  flex: 1 1 auto;
  min-height: 0;
}

.as-new {
  flex: 0 0 auto;
  display: flex;
  align-items: center;
  gap: 8px;
  min-height: 34px;
  padding: 7px 10px;
  border: 1px solid var(--lp-line);
  border-radius: var(--lp-r-md);
  background: var(--lp-surface);
  color: var(--lp-ink);
  font: inherit;
  font-size: var(--lp-fs-xs);
  font-weight: 600;
  text-align: left;
  cursor: pointer;
}

.as-new:hover { background: var(--lp-surface-2); }

.as-new svg {
  fill: none;
  stroke: currentColor;
  stroke-width: 1.6;
  stroke-linecap: round;
}

.as-thread-list {
  flex: 1 1 auto;
  min-height: 0;
  margin-top: 10px;
  overflow-y: auto;
  display: flex;
  flex-direction: column;
  gap: 1px;
}

.as-thread-row {
  display: flex;
  align-items: center;
  min-width: 0;
  border-radius: var(--lp-r-md);
}

.as-thread-row:hover { background: var(--lp-surface-2); }
.as-thread-row.is-active { background: var(--lp-blue-tint); }
.as-thread-row.is-active .as-thread { font-weight: 600; }

.as-thread {
  flex: 1 1 auto;
  min-width: 0;
  min-height: 30px;
  padding: 6px 10px;
  border: 0;
  border-radius: var(--lp-r-md);
  background: transparent;
  color: var(--lp-ink);
  font: inherit;
  font-size: var(--lp-fs-xs);
  text-align: left;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  cursor: pointer;
}

.as-thread-del {
  flex: 0 0 auto;
  width: 24px;
  height: 24px;
  margin-right: 4px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border: 0;
  border-radius: 6px;
  background: transparent;
  color: var(--lp-muted);
  opacity: 0;
  cursor: pointer;
}

.as-thread-del svg {
  fill: none;
  stroke: currentColor;
  stroke-width: 1.3;
  stroke-linecap: round;
  stroke-linejoin: round;
}

.as-thread-row:hover .as-thread-del,
.as-thread-row.is-active .as-thread-del,
.as-thread-del:focus-visible { opacity: 1; }

.as-thread-confirm {
  flex: 0 0 auto;
  margin-right: 4px;
  padding: 3px 8px;
  border: 0;
  border-radius: 6px;
  background: var(--lp-red-deep);
  color: var(--lp-surface);
  font: inherit;
  font-size: var(--lp-fs-2xs);
  font-weight: 600;
  cursor: pointer;
}

.as-thread-empty {
  margin: 8px 10px 0;
  color: var(--lp-muted);
  font-size: var(--lp-fs-2xs);
}

/* ── ChatGPT's column ─────────────────────────────────────────────────────── */

.as-conversation {
  flex: 1 1 auto;
  min-width: 0;
  height: 100%;
  display: flex;
  flex-direction: column;
  overflow: hidden;
}

/* One measure, used by the stream, the dock and the opening state, so the
   composer does not shift sideways when the first answer arrives. */
.as-column {
  width: 100%;
  max-width: 760px;
  margin: 0 auto;
  padding: 0 24px;
  box-sizing: border-box;
}

.as-stream {
  flex: 1 1 auto;
  min-height: 0;
  overflow-y: auto;
  padding: 26px 0 8px;
}

.as-dock {
  flex: 0 0 auto;
  padding: 6px 0 18px;
  background: var(--lp-surface);
}

.as-opening {
  flex: 1 1 auto;
  min-height: 0;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 24px;
  box-sizing: border-box;
  text-align: center;
}

.as-opening-h {
  margin: 0 0 6px;
  color: var(--lp-ink);
  font-size: var(--lp-fs-lg);
  font-weight: 650;
}

.as-opening-p {
  max-width: 52ch;
  margin: 0 0 20px;
  color: var(--lp-muted);
  font-size: var(--lp-fs-sm);
  line-height: var(--lp-lh);
}

.as-opening .as-composer {
  width: 100%;
  max-width: 700px;
  text-align: left;
}

/* ── the messages ─────────────────────────────────────────────────────────── */

.as-message { margin: 0 0 22px; }

.as-message--user {
  display: flex;
  justify-content: flex-end;
}

.as-bubble {
  max-width: 78%;
  margin: 0;
  padding: 9px 14px;
  border-radius: 18px;
  background: var(--lp-surface-2);
  color: var(--lp-ink);
  font-size: var(--lp-fs-sm);
  line-height: var(--lp-lh);
  white-space: pre-wrap;
  overflow-wrap: anywhere;
}

/* No bubble and no "Assistant" label: the reference prints the answer as the
   page's own prose, and a role label on every turn is the thing that makes a
   chat read like a transcript instead of a reply. */
.as-message-text {
  margin: 0;
  color: var(--lp-ink);
  font-size: var(--lp-fs-sm);
  line-height: var(--lp-lh);
  white-space: pre-wrap;
  overflow-wrap: anywhere;
}

.as-message--assistant.is-refusal .as-message-text { color: var(--lp-muted); }

.as-numeric {
  display: flex;
  align-items: baseline;
  gap: 8px;
  margin: 10px 0 0;
}

.as-numeric-label { color: var(--lp-muted); font-size: var(--lp-fs-2xs); }
.as-numeric-value { color: var(--lp-ink); font-size: var(--lp-fs-md); font-weight: 650; }

.as-preview {
  display: flex;
  flex-direction: column;
  gap: 2px;
  margin-top: 12px;
  padding: 9px 13px;
  border: 1px solid var(--lp-line);
  border-radius: var(--lp-r-md);
  background: var(--lp-surface);
  font: inherit;
  text-align: left;
  cursor: pointer;
}

.as-preview:hover { background: var(--lp-surface-2); }
.as-preview-name { color: var(--lp-ink); font-size: var(--lp-fs-xs); font-weight: 600; }
.as-preview-meta { color: var(--lp-blue-solid); font-size: var(--lp-fs-2xs); font-weight: 600; }

/* ── R20: the thumbs, which the server reads back into the next turn ───────── */

.as-rate {
  display: flex;
  align-items: center;
  gap: 4px;
  margin-top: 10px;
}

.as-rate-btn {
  width: 26px;
  height: 26px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border: 0;
  border-radius: 6px;
  background: transparent;
  color: var(--lp-muted);
  cursor: pointer;
}

.as-rate-btn svg {
  fill: none;
  stroke: currentColor;
  stroke-width: 1.3;
  stroke-linecap: round;
  stroke-linejoin: round;
}

.as-rate-btn:hover { background: var(--lp-surface-2); color: var(--lp-ink); }
.as-rate-btn.is-on { background: var(--lp-blue-tint); color: var(--lp-blue-solid); }

.as-rate-why-said {
  margin-left: 4px;
  color: var(--lp-muted);
  font-size: var(--lp-fs-2xs);
}

.as-rate-why {
  display: flex;
  gap: 6px;
  margin-top: 6px;
}

.as-rate-input {
  flex: 1 1 auto;
  min-width: 0;
  padding: 6px 10px;
  border: 1px solid var(--lp-line);
  border-radius: var(--lp-r-md);
  background: var(--lp-surface);
  color: var(--lp-ink);
  font: inherit;
  font-size: var(--lp-fs-2xs);
}

.as-rate-input:focus { outline: none; border-color: var(--lp-blue-solid); }

.as-rate-send {
  flex: 0 0 auto;
  padding: 6px 12px;
  border: 1px solid var(--lp-line);
  border-radius: var(--lp-r-md);
  background: var(--lp-surface);
  color: var(--lp-ink);
  font: inherit;
  font-size: var(--lp-fs-2xs);
  font-weight: 600;
  cursor: pointer;
}

.as-rate-send:hover { background: var(--lp-surface-2); }

.as-sources { margin-top: 8px; }

.as-sources-btn {
  padding: 0;
  border: 0;
  background: transparent;
  color: var(--lp-muted);
  font: inherit;
  font-size: var(--lp-fs-2xs);
  font-weight: 600;
  cursor: pointer;
}

.as-sources-btn:hover { color: var(--lp-ink); }

.as-sources-list {
  display: flex;
  flex-direction: column;
  gap: 4px;
  margin-top: 6px;
}

.as-citation {
  color: var(--lp-muted);
  font-size: var(--lp-fs-2xs);
  line-height: var(--lp-lh);
  text-decoration: none;
  overflow-wrap: anywhere;
}

.as-citation:hover { color: var(--lp-blue-solid); text-decoration: underline; }

.as-working { margin: 0 0 22px; }

.as-problem {
  margin: 0 0 10px;
  color: var(--lp-red-deep);
  font-size: var(--lp-fs-2xs);
}

/* ── the composer ─────────────────────────────────────────────────────────── */

.as-field {
  border: 1px solid var(--lp-line);
  border-radius: 22px;
  background: var(--lp-surface);
  padding: 10px 8px 8px 16px;
  box-shadow: 0 1px 2px rgba(20, 24, 40, 0.05);
}

.as-field:focus-within { border-color: var(--lp-blue-solid); }

.as-prompt {
  display: block;
  width: 100%;
  max-height: 180px;
  border: 0;
  outline: none;
  padding: 0 8px 0 0;
  background: transparent;
  color: var(--lp-ink);
  font: inherit;
  font-size: var(--lp-fs-sm);
  line-height: var(--lp-lh);
  resize: none;
  box-sizing: border-box;
}

.as-prompt::placeholder { color: var(--lp-muted); }

.as-field-foot {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-top: 8px;
}

.as-pick {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  min-width: 0;
}

.as-pick-label { color: var(--lp-muted); font-size: var(--lp-fs-2xs); }

/* Text, not a boxed control — ChatGPT's "Instant" reads as part of the field. */
.as-pick-select {
  max-width: 150px;
  border: 0;
  background: transparent;
  color: var(--lp-ink);
  font: inherit;
  font-size: var(--lp-fs-2xs);
  font-weight: 600;
  cursor: pointer;
}

.as-send {
  flex: 0 0 auto;
  margin-left: auto;
  width: 30px;
  height: 30px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border: 0;
  border-radius: 999px;
  background: var(--lp-ink);
  color: var(--lp-surface);
  cursor: pointer;
}

.as-send svg { fill: none; stroke: currentColor; stroke-width: 1.7; stroke-linecap: round; stroke-linejoin: round; }
.as-send:disabled { background: var(--lp-surface-2); color: var(--lp-muted); cursor: default; }

/* ── Glean's chips ────────────────────────────────────────────────────────── */

.as-chips {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin-top: 10px;
  padding: 0 6px;
}

.as-chip {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  max-width: 220px;
  padding: 5px 11px;
  border: 1px solid transparent;
  border-radius: 999px;
  background: var(--lp-surface-2);
  color: var(--lp-ink);
  font: inherit;
  font-size: var(--lp-fs-2xs);
  font-weight: 500;
  cursor: pointer;
}

.as-chip:hover { border-color: var(--lp-line); }
.as-chip.is-selected { background: var(--lp-blue-tint); border-color: var(--lp-blue-tint); font-weight: 600; }
/* The one the answer will be built on, when more than one is picked (R3). */
.as-chip.is-target { border-color: var(--lp-blue-solid); }

.as-chip-mark {
  flex: 0 0 auto;
  display: inline-flex;
  width: 14px;
  height: 14px;
  color: var(--lp-muted);
}

.as-chip-mark svg {
  width: 14px;
  height: 14px;
  fill: none;
  stroke: currentColor;
  stroke-width: 1.4;
  stroke-linecap: round;
  stroke-linejoin: round;
}

.as-chip.is-selected .as-chip-mark { color: var(--lp-blue-solid); }

.as-chip-name {
  min-width: 0;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

/* A source this caller holds and cannot ask (see AssistantPage's note): still visible, because
   an artefact already built on it stays listed — but plainly not a door. */
.as-chip.is-blocked {
  color: var(--lp-muted);
  background: transparent;
  border-color: var(--lp-line);
  border-style: dashed;
  cursor: default;
}

.as-chip.is-blocked .as-chip-mark { opacity: 0.5; }
.as-chip.is-blocked:hover { border-color: var(--lp-line); }

.as-chips-note {
  flex: 1 0 100%;
  margin: 2px 0 0;
  color: var(--lp-muted);
  font-size: var(--lp-fs-2xs);
}

.as-chips-empty {
  margin: 2px 0 0;
  color: var(--lp-muted);
  font-size: var(--lp-fs-2xs);
}