.qr3ca-chat-box {
  max-width: 760px;
  margin: 30px auto;
  border: 1px solid #ddd;
  border-radius: 14px;
  padding: 22px;
  background: #fff;
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.08);
  font-family: inherit;
}

.qr3ca-chat-header h3 {
  margin: 0 0 6px;
  color: #b00000;
  font-size: 1.5rem;
}

.qr3ca-chat-header p {
  margin: 0 0 18px;
  color: #555;
}

.qr3ca-chat-messages {
  min-height: 180px;
  max-height: 420px;
  overflow-y: auto;
  padding: 14px;
  background: #f7f7f7;
  border-radius: 10px;
  margin-bottom: 14px;
}

.qr3ca-msg {
  padding: 11px 13px;
  border-radius: 10px;
  margin-bottom: 10px;
  line-height: 1.45;
  white-space: pre-wrap;
}

.qr3ca-user {
  background: #b00000;
  color: #fff;
  margin-left: 12%;
}

.qr3ca-bot {
  background: #fff;
  color: #222;
  border: 1px solid #e2e2e2;
  margin-right: 12%;
}

.qr3ca-chat-form {
  display: flex;
  gap: 10px;
}

.qr3ca-chat-form textarea {
  flex: 1;
  min-height: 70px;
  resize: vertical;
  border-radius: 10px;
  border: 1px solid #ccc;
  padding: 12px;
  font-family: inherit;
}

.qr3ca-chat-form button {
  background: #b00000;
  color: #fff;
  border: none;
  border-radius: 10px;
  padding: 0 22px;
  font-weight: 700;
  cursor: pointer;
}

.qr3ca-chat-form button:hover,
.qr3ca-chat-form button:focus {
  background: #8c0000;
}

.qr3ca-chat-form button:disabled {
  opacity: 0.65;
  cursor: wait;
}

.qr3ca-chat-disclaimer {
  margin-top: 12px;
  font-size: 0.82rem;
  color: #666;
}

@media (max-width: 600px) {
  .qr3ca-chat-form {
    flex-direction: column;
  }

  .qr3ca-chat-form button {
    padding: 12px;
  }

  .qr3ca-user,
  .qr3ca-bot {
    margin-left: 0;
    margin-right: 0;
  }
}