.mock-chat {
  position: absolute;
  inset: 0;
  display: flex;
  flex-direction: column;
  background: var(--bg-section);
  border-radius: 28px;
  overflow: hidden;
}
.mock-header {
  height: 44px;
  border-bottom: 1px solid var(--line-soft);
  display: flex;
  align-items: center;
  padding: 0 16px;
  gap: 12px;
  background: var(--bg-soft);
}
.mock-dots { display: flex; gap: 6px; }
.mock-dots span { width: 11px; height: 11px; border-radius: 50%; background: var(--line); }
.mock-dots span:nth-child(1) { background: #FF5F57; }
.mock-dots span:nth-child(2) { background: #FEBC2E; }
.mock-dots span:nth-child(3) { background: #28C840; }
.mock-title { font-size: 13px; color: var(--text-soft); font-weight: 500; }

.mock-body {
  flex: 1;
  padding: 32px clamp(20px, 4vw, 48px);
  display: flex;
  flex-direction: column;
  gap: 20px;
  overflow: hidden;
  justify-content: center;
}
.mock-msg {
  display: flex;
  flex-direction: column;
  gap: 6px;
  animation: msgIn .6s ease both;
}
.mock-msg.user { align-items: flex-end; animation-delay: .15s; }
.mock-msg.ai { align-items: flex-start; animation-delay: .8s; }
.mock-bubble {
  max-width: 75%;
  padding: 14px 18px;
  border-radius: 18px;
  font-size: 15px;
  line-height: 1.55;
  text-align: left;
}
.mock-msg.user .mock-bubble {
  background: var(--bubble-user-bg);
  color: var(--bubble-user-text);
}
.mock-msg.ai .mock-bubble {
  background: var(--bubble-ai-bg);
  color: var(--bubble-ai-text);
}

@keyframes msgIn {
  from { opacity: 0; transform: translateY(8px); }
  to { opacity: 1; transform: translateY(0); }
}

@media (max-width: 720px) {
  .mock-bubble { max-width: 92%; font-size: 13.5px; padding: 12px 14px; }
  .mock-body { padding: 18px; gap: 14px; }
}