/* Document chat — document on the left, conversation on the right.
   Loads on top of builder.css, which supplies the shared .rb-* chrome. */
.doc-app { margin: 30px 0 0; }
.dc-note {
  display: flex; gap: 10px; align-items: flex-start; margin: 0 0 20px;
  font-size: 0.88rem; line-height: 1.6; color: var(--ink-2);
  background: var(--surface); border: 1px solid var(--line);
  border-left: 3px solid var(--accent); border-radius: var(--radius); padding: 14px 16px;
}
.dc-note i { font-size: 1.15rem; color: var(--ink); flex-shrink: 0; margin-top: 1px; }
.dc-note strong { color: var(--ink); }

.dc-doc-head { display: flex; align-items: center; justify-content: space-between; gap: 10px; margin-bottom: 10px; flex-wrap: wrap; }
.dc-doc-actions { display: flex; gap: 8px; }
#dc-doc { width: 100%; min-height: 420px; resize: vertical; }
.dc-count { font-size: 0.8rem; color: var(--ink-3); font-variant-numeric: tabular-nums; }
.dc-count.is-over { color: var(--ink); font-weight: 600; }

/* conversation */
.dc-thread {
  border: 1px solid var(--line); border-radius: var(--radius); background: var(--paper);
  padding: 18px; min-height: 340px; max-height: 56vh; overflow-y: auto;
  display: flex; flex-direction: column; gap: 18px;
}
.dc-empty {
  margin: auto; text-align: center; color: var(--ink-3); display: flex;
  flex-direction: column; align-items: center; gap: 6px; padding: 30px 10px;
}
.dc-empty i { font-size: 2rem; color: var(--ink); opacity: .25; margin-bottom: 4px; }
.dc-empty-sub { font-size: 0.8rem; }
.dc-turn { display: flex; flex-direction: column; gap: 8px; }
.dc-q {
  margin: 0; align-self: flex-end; max-width: 85%;
  background: var(--ink); color: var(--surface); border-radius: 14px 14px 4px 14px;
  padding: 10px 14px; font-size: 0.9rem; line-height: 1.55;
}
.dc-a {
  align-self: flex-start; max-width: 92%; background: var(--surface);
  border: 1px solid var(--line); border-radius: 14px 14px 14px 4px;
  padding: 12px 15px; font-size: 0.92rem; line-height: 1.65; white-space: pre-wrap;
  overflow-wrap: anywhere;
}
.dc-typing { display: inline-block; width: 2px; height: 1em; background: var(--ink); vertical-align: -.15em; animation: caret 1.05s steps(1) infinite; }
@media (prefers-reduced-motion: reduce) { .dc-typing { animation: none; opacity: .5; } }

.dc-ask-row { display: flex; gap: 10px; margin-top: 14px; align-items: flex-start; }
#dc-question { flex: 1; min-height: 46px; resize: vertical; }
.dc-foot { display: flex; align-items: center; gap: 12px; margin-top: 10px; flex-wrap: wrap; }

@media (max-width: 1040px) { .dc-thread { max-height: none; } #dc-doc { min-height: 240px; } }
@media (max-width: 640px) { .dc-ask-row { flex-direction: column; } .dc-ask-row .btn { width: 100%; } }