html {
  font-size: 106.25%;
}

body {
  font-family: "Poppins", system-ui, -apple-system, sans-serif;
}

.chat-card {
  min-height: 70vh;
  display: flex;
  flex-direction: column;
}

.chat-messages {
  flex: 1;
  min-height: 360px;
  max-height: min(55vh, 520px);
  overflow-y: auto;
  background: linear-gradient(180deg, #f8f9fa 0%, #fff 40%);
}

.msg {
  max-width: 92%;
  margin-bottom: 0.75rem;
  padding: 0.65rem 0.9rem;
  border-radius: 0.75rem;
  font-size: 1.05rem;
  line-height: 1.5;
  white-space: pre-wrap;
  word-break: break-word;
}

.msg-user {
  margin-left: auto;
  background-color: #0d6efd;
  color: #fff;
  border-bottom-right-radius: 0.25rem;
}

.msg-assistant {
  margin-right: auto;
  background-color: #e9ecef;
  color: #212529;
  border-bottom-left-radius: 0.25rem;
}

.msg-meta {
  font-size: 0.8rem;
  opacity: 0.75;
  margin-bottom: 0.15rem;
}