/* ChatArea 消息列表样式 */

.area {
  flex: 1 1 auto;
  min-height: 0;
  overflow-y: auto;
  padding: var(--spacing-4, 16px) var(--spacing-5, 20px);
  display: flex;
  flex-direction: column;
  gap: var(--spacing-3, 12px);
}

.dateHeader {
  display: flex;
  align-items: center;
  justify-content: center;
  margin: var(--spacing-2, 8px) 0;
}

.dateChip {
  background: var(--color-surface-muted, rgba(255, 255, 255, 0.06));
  border-radius: var(--radius-md, 8px);
  padding: var(--spacing-1, 4px) var(--spacing-3, 12px);
  font-size: var(--font-size-xs, 11px);
  opacity: 0.75;
}

.aiDisclosure {
  align-self: center;
  background: var(--color-surface-muted, rgba(255, 255, 255, 0.06));
  border-radius: var(--radius-md, 8px);
  padding: var(--spacing-2, 8px) var(--spacing-4, 16px);
  font-size: var(--font-size-sm, 12px);
  opacity: 0.75;
  text-align: center;
}

.bubbleRowAi {
  display: flex;
  flex-direction: row;
  align-items: flex-start;
  gap: var(--spacing-1, 4px);
}

.bubbleRowUser {
  display: flex;
  flex-direction: row;
  align-items: flex-end;
  align-self: flex-end;
  gap: var(--spacing-1, 4px);
}

.bubbleAi {
  max-width: 75%;
  background: var(--color-bubble-ai, rgba(255, 255, 255, 0.08));
  padding: var(--spacing-3, 12px) var(--spacing-4, 16px);
  border-radius: var(--radius-lg, 12px);
  font-size: var(--font-size-base, 14px);
  line-height: 1.45;
  white-space: pre-wrap;
  word-break: break-word;
}

.bubbleUser {
  max-width: 75%;
  background: var(--color-bubble-user, #4f46e5);
  padding: var(--spacing-3, 12px) var(--spacing-4, 16px);
  border-radius: var(--radius-lg, 12px);
  font-size: var(--font-size-base, 14px);
  line-height: 1.45;
  white-space: pre-wrap;
  word-break: break-word;
  color: #fff;
}

.bubbleTime {
  font-size: var(--font-size-xs, 11px);
  opacity: 0.5;
}

.typingBubble {
  display: flex;
  align-items: center;
  gap: var(--spacing-1, 4px);
  padding: var(--spacing-3, 12px) var(--spacing-4, 16px);
  background: var(--color-bubble-ai, rgba(255, 255, 255, 0.08));
  border-radius: var(--radius-lg, 12px);
  width: fit-content;
}

.typingDot {
  display: inline-block;
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: currentColor;
  margin: 0 2px;
  animation: typingBlink 1.2s infinite;
}
.typingDot:nth-child(2) { animation-delay: 0.15s; }
.typingDot:nth-child(3) { animation-delay: 0.3s; }

@keyframes typingBlink {
  0%, 60%, 100% { opacity: 0.2; }
  30% { opacity: 1; }
}