.chat-header {
  padding: 22px 40px;
  border-bottom: 1px solid var(--border);
  display: flex;
  align-items: center;
  gap: 16px;
  background: var(--bg-deep);
}

.chat-header .active-avatar { display: none; }
.emotion-badge { display: none !important; }

.chat-header .active-info { flex: 1; }
.chat-header h2 {
  font-family: var(--serif);
  font-size: 1.4rem;
  font-weight: 700;
  color: var(--text);
  line-height: 1.1;
  letter-spacing: -0.01em;
}
.chat-header p {
  font-size: 0.78rem;
  color: var(--text-dim);
  margin-top: 4px;
  letter-spacing: 0.02em;
}

.messages {
  flex: 1;
  overflow-y: auto;
  padding: 32px 40px;
  display: flex;
  flex-direction: column;
  gap: 18px;
  scroll-behavior: smooth;
  background: var(--bg-surface);
}
.messages::-webkit-scrollbar { width: 6px; }
.messages::-webkit-scrollbar-track { background: transparent; }
.messages::-webkit-scrollbar-thumb {
  background: var(--border-strong);
  border-radius: 3px;
}

.msg {
  max-width: 72%;
  padding: 16px 20px;
  border-radius: var(--radius-lg);
  font-size: 0.94rem;
  line-height: 1.65;
  animation: msgIn 0.25s ease;
}
@keyframes msgIn {
  from { opacity: 0; transform: translateY(8px); }
  to   { opacity: 1; transform: translateY(0); }
}

.msg.user {
  align-self: flex-end;
  background: var(--accent);
  color: #ffffff;
  font-weight: 500;
  border-bottom-right-radius: 2px;
}
.msg.bot {
  align-self: flex-start;
  background: var(--bg-card);
  border: 1px solid var(--border);
  color: var(--text);
  border-bottom-left-radius: 2px;
  box-shadow: var(--shadow-soft);
}
.msg.bot.trina { border-left: 3px solid var(--trina-primary); }
.msg.bot.sue   { border-left: 3px solid var(--sue-primary); }

.msg .source-tag {
  display: inline-block;
  font-size: 0.68rem;
  font-weight: 500;
  padding: 3px 10px;
  border-radius: var(--radius);
  margin-top: 10px;
  letter-spacing: 0.03em;
  font-family: var(--sans);
}
.msg .source-tag.faq       { background: rgba(74,222,128,0.15); color: var(--success); }
.msg .source-tag.escalated { background: var(--accent-soft); color: var(--accent); }
.msg .source-tag.ai        { background: var(--bg-elevated); color: var(--text-dim); }

.typing {
  display: none;
  align-self: flex-start;
  padding: 16px 20px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  border-bottom-left-radius: 2px;
  margin: 0 40px;
}
.typing.active { display: flex; gap: 6px; align-items: center; }
.typing span {
  width: 7px; height: 7px;
  border-radius: 50%;
  background: var(--accent);
  animation: bounce 1.4s infinite;
}
.typing span:nth-child(2) { animation-delay: 0.15s; }
.typing span:nth-child(3) { animation-delay: 0.3s; }
@keyframes bounce {
  0%, 80%, 100% { transform: scale(0.6); opacity: 0.4; }
  40% { transform: scale(1); opacity: 1; }
}

.input-area {
  padding: 20px 40px 28px;
  border-top: 1px solid var(--border);
  background: var(--bg-deep);
}
.input-wrap {
  display: flex;
  gap: 10px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 6px 6px 6px 20px;
  transition: border-color 0.2s;
}
.input-wrap:focus-within { border-color: var(--accent); }
.input-wrap input {
  flex: 1;
  background: none;
  border: none;
  outline: none;
  color: var(--text);
  font-family: inherit;
  font-size: 0.96rem;
  padding: 10px 0;
}
.input-wrap input::placeholder { color: var(--text-muted); }

.send-btn {
  padding: 0 28px;
  height: 44px;
  border-radius: var(--radius-pill);
  border: none;
  background: var(--accent);
  color: #ffffff;
  cursor: pointer;
  font-family: var(--sans);
  font-size: 0.85rem;
  font-weight: 600;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  transition: background 0.2s ease;
  display: flex;
  align-items: center;
  justify-content: center;
  white-space: nowrap;
}
.send-btn:hover { background: var(--accent-hover); }
.send-btn:active { transform: scale(0.98); }

.track-choice {
  display: flex;
  gap: 8px;
  margin-top: 10px;
  flex-wrap: wrap;
}

.track-choice button {
  padding: 8px 14px;
  border: 1px solid currentColor;
  border-radius: 8px;
  background: transparent;
  color: inherit;
  font: inherit;
  cursor: pointer;
  transition: background 0.15s, color 0.15s;
}

.track-choice button:hover {
  background: currentColor;
  color: #fff;
}