/* ==========================================================================
   IMMERSION — Q&A
   Ref: handoff § Phase 8.
   ========================================================================== */

.imm-qa {
  max-width: var(--imm-content-max);
  margin-inline: auto;
  padding: var(--imm-s-11) var(--imm-s-12) var(--imm-s-13);
}

.imm-qa__head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--imm-s-5);
  margin-bottom: var(--imm-s-7);
}

.imm-qa__head .imm-page-title { margin: 0; }

.imm-qa__panes {
  display: grid;
  grid-template-columns: 300px 1fr;
  gap: var(--imm-s-5);
  align-items: start;
}

/* --- Thread list ---------------------------------------------------------- */

.imm-qa__list {
  display: grid;
  gap: var(--imm-s-2);
  align-content: start;
}

.imm-qa__thread {
  display: block;
  padding: var(--imm-s-5);
  background: var(--imm-paper);
  border: 1px solid var(--imm-line);
  border-radius: var(--imm-r-card);
  text-decoration: none;
  transition: border-color var(--imm-t-btn), background-color var(--imm-t-btn);
}

.imm-qa__thread:hover { border-color: var(--imm-line-2); }

.imm-qa__thread.is-active {
  background: var(--imm-teal-wash);
  border-color: var(--imm-teal-wash-line);
}

.imm-qa__subject {
  margin: 0 0 2px;
  font-size: 14.5px;
  font-weight: 700;
  color: var(--imm-ink);
}

.imm-qa__preview {
  margin: 0 0 var(--imm-s-2);
  font-size: 13px;
  line-height: 1.5;
  color: var(--imm-muted);
}

.imm-qa__meta {
  margin: 0;
  font-size: 12px;
  color: var(--imm-faint);
}

.imm-qa__who { font-weight: 600; color: var(--imm-muted); }

.imm-qa__answered {
  margin-left: var(--imm-s-2);
  padding: 2px 7px;
  border-radius: var(--imm-r-pill);
  background: var(--imm-teal-wash);
  border: 1px solid var(--imm-teal-wash-line);
  color: var(--imm-teal);
  font-size: 11px;
  font-weight: 700;
}

/* --- Conversation --------------------------------------------------------- */

.imm-qa__conversation {
  display: flex;
  flex-direction: column;
  min-height: 60vh;
  background: var(--imm-paper);
  border: 1px solid var(--imm-line);
  border-radius: var(--imm-r-panel);
}

.imm-qa__conv-head {
  padding: var(--imm-s-6) var(--imm-s-7);
  border-bottom: 1px solid var(--imm-line-3);
}

.imm-qa__conv-title { margin: 0; font-size: 17.5px; }

.imm-qa__linked,
.imm-composer__context {
  margin: var(--imm-s-1) 0 0;
  font-size: 12.5px;
  color: var(--imm-faint);
}

.imm-qa__messages {
  flex: 1;
  display: grid;
  gap: var(--imm-s-5);
  align-content: start;
  padding: var(--imm-s-7);
}

.imm-qa__empty {
  margin: 0;
  font-size: 14px;
  color: var(--imm-faint);
}

/* --- Bubbles -------------------------------------------------------------- */

.imm-msg {
  display: flex;
  gap: var(--imm-s-3);
  max-width: 70%;
}

/* Karel answers from the right, in his teal wash — the same pairing the
   reader uses for "Karel's voice". */
.imm-msg.is-karel {
  margin-left: auto;
  flex-direction: row-reverse;
}

.imm-msg__avatar {
  flex: none;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 34px;
  height: 34px;
  border-radius: var(--imm-r-pill);
  background: var(--imm-line-4);
  color: var(--imm-muted);
  font-size: 12px;
  font-weight: 700;
}

.imm-msg.is-karel .imm-msg__avatar {
  background: var(--imm-ink);
  color: #fff;
}

.imm-msg__body { min-width: 0; }

.imm-msg__bubble {
  padding: var(--imm-s-4) var(--imm-s-5);
  background: var(--imm-paper);
  border: 1px solid var(--imm-line);
  border-radius: var(--imm-r-card);
  font-size: 14.5px;
  line-height: 1.6;
}

.imm-msg.is-karel .imm-msg__bubble {
  background: var(--imm-teal-wash);
  border-color: var(--imm-teal-wash-line);
}

.imm-msg__bubble p { margin: 0 0 var(--imm-s-3); }
.imm-msg__bubble p:last-child { margin-bottom: 0; }

.imm-msg__meta {
  margin: var(--imm-s-1) 0 0;
  font-size: 12px;
  color: var(--imm-faint);
}

.imm-msg.is-karel .imm-msg__meta { text-align: right; }

/* --- Composer ------------------------------------------------------------- */

.imm-composer {
  padding: var(--imm-s-5) var(--imm-s-7) var(--imm-s-7);
  border-top: 1px solid var(--imm-line-3);
  background: var(--imm-canvas);
  border-radius: 0 0 var(--imm-r-panel) var(--imm-r-panel);
}

.imm-composer textarea {
  width: 100%;
  line-height: 1.6;
  resize: vertical;
}

.imm-composer__foot {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: var(--imm-s-3);
  margin-top: var(--imm-s-3);
}

.imm-composer__actions {
  display: flex;
  align-items: center;
  gap: var(--imm-s-3);
}

.imm-composer__status {
  margin: 0;
  font-size: 12.5px;
  color: var(--imm-faint);
}

.imm-composer__status.is-saved { color: var(--imm-teal); }
.imm-composer__status.is-warn,
.imm-composer__status.is-error { color: var(--imm-red); }

/* --- Mobile --------------------------------------------------------------- */

@media (max-width: 900px) {
  .imm-qa { padding: var(--imm-s-7) var(--imm-s-5) var(--imm-s-11); }

  .imm-qa__panes { grid-template-columns: 1fr; }

  /* The list becomes a short scrollable strip so the conversation stays the
     focus on a phone. */
  .imm-qa__list {
    max-height: 40vh;
    overflow-y: auto;
  }

  .imm-msg { max-width: 88%; }

  .imm-composer__actions .imm-btn { min-height: 44px; }
}