.root {
  display: flex;
  flex-direction: column;
  height: 100%;
  gap: 12px;
}

.toolbar {
  display: flex;
  align-items: center;
  gap: 12px;
  flex-shrink: 0;
}

.docCount { font-size: .85rem; color: var(--muted); white-space: nowrap; }

.catFilter { max-width: 240px; }

.clearBtn {
  background: transparent;
  color: var(--muted);
  font-size: .8rem;
  padding: 5px 12px;
  border: 1px solid var(--border);
  margin-left: auto;
}
.clearBtn:hover { color: var(--error); border-color: var(--error); }

.thread {
  flex: 1;
  overflow-y: auto;
  display: flex;
  flex-direction: column;
  gap: 12px;
  padding: 4px 2px;
}

.empty {
  color: var(--muted);
  font-size: .9rem;
  text-align: center;
  margin-top: 60px;
}

.msg {
  max-width: 82%;
  padding: 12px 16px;
  border-radius: 12px;
  line-height: 1.55;
}

.user {
  align-self: flex-end;
  background: var(--primary);
  color: #fff;
  border-bottom-right-radius: 3px;
}

.assistant {
  align-self: flex-start;
  background: var(--surface);
  border: 1px solid var(--border);
  box-shadow: var(--shadow);
  border-bottom-left-radius: 3px;
}

.senderName {
  display: block;
  font-size: .72rem;
  font-weight: 700;
  color: #1e4fa8;
  margin-bottom: 4px;
  letter-spacing: .3px;
}

.text { white-space: pre-wrap; }

/* ── Markdown renderer ── */
.markdown { font-size: .93rem; line-height: 1.65; }
.markdown p { margin: 0 0 8px; }
.markdown p:last-child { margin-bottom: 0; }
.markdown ul, .markdown ol { padding-left: 20px; margin: 6px 0 8px; }
.markdown li { margin-bottom: 3px; }
.markdown strong { font-weight: 700; color: #1e293b; }
.markdown em { font-style: italic; }
.markdown h1, .markdown h2, .markdown h3 {
  font-weight: 700;
  margin: 12px 0 4px;
  color: #1e293b;
}
.markdown h1 { font-size: 1.05rem; }
.markdown h2 { font-size: 1rem; }
.markdown h3 { font-size: .95rem; }
.markdown code {
  font-family: 'Consolas', 'Courier New', monospace;
  font-size: .82rem;
  background: #f1f5f9;
  border: 1px solid #e2e8f0;
  border-radius: 4px;
  padding: 1px 5px;
}
.markdown pre {
  background: #f8fafc;
  border: 1px solid #e2e8f0;
  border-radius: 6px;
  padding: 10px 12px;
  overflow-x: auto;
  margin: 8px 0;
}
.markdown pre code {
  background: none;
  border: none;
  padding: 0;
  font-size: .82rem;
}
.markdown blockquote {
  border-left: 3px solid #1e4fa8;
  margin: 8px 0;
  padding: 4px 12px;
  color: var(--muted);
  font-style: italic;
}
.markdown hr {
  border: none;
  border-top: 1px solid var(--border);
  margin: 10px 0;
}
.markdown table { border-collapse: collapse; width: 100%; margin: 8px 0; font-size: .85rem; }
.markdown th, .markdown td { border: 1px solid var(--border); padding: 6px 10px; text-align: left; }
.markdown th { background: #f1f5f9; font-weight: 600; }

.meta {
  margin-top: 8px;
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.citations {
  display: flex;
  flex-wrap: wrap;
  gap: 4px;
}

.citation {
  font-size: .75rem;
  background: #f1f5f9;
  border: 1px solid var(--border);
  border-radius: 4px;
  padding: 2px 7px;
  color: var(--muted);
}

.pathBadge {
  font-size: .72rem;
  font-weight: 600;
  align-self: flex-start;
  padding: 2px 8px;
  border-radius: 4px;
}
.pathBadge[data-path='vector'] { background: #dbeafe; color: #1d4ed8; }
.pathBadge[data-path='sql']    { background: #dcfce7; color: #166534; }

.sqlDetails { font-size: .8rem; }
.sqlDetails summary { cursor: pointer; color: var(--muted); }
.sqlDetails pre {
  margin-top: 4px;
  padding: 8px;
  background: #f8fafc;
  border: 1px solid var(--border);
  border-radius: 6px;
  overflow-x: auto;
  font-size: .78rem;
}

.thinking {
  color: var(--muted);
  font-style: italic;
  animation: pulse 1.2s ease-in-out infinite;
}
@keyframes pulse { 0%,100% { opacity: 1 } 50% { opacity: .4 } }

.inputRow {
  display: flex;
  gap: 8px;
  flex-shrink: 0;
  align-items: flex-end;
}

.textarea {
  flex: 1;
  resize: none;
  line-height: 1.5;
}

.sendBtn {
  background: var(--primary);
  color: #fff;
  font-weight: 600;
  flex-shrink: 0;
  padding: 10px 22px;
  align-self: flex-end;
}
.sendBtn:hover:not(:disabled) { background: var(--primary-h); }
.sendBtn:disabled { opacity: .5; cursor: not-allowed; }