body {
  display: flex;
  flex-direction: column;
  align-items: center;
  min-height: 100vh;
  justify-content: flex-start;
}
.chat-window {
  width: 80vw;
  max-width: 700px;
  min-height: 70vh;
  background: rgba(0,0,0,0.7);
  border: 2px solid #555;
  border-radius: 16px;
  padding: 20px;
  font-family: monospace;
  color: #fff;
  margin: 76px auto 40px auto;
  box-shadow: 0 0 24px #222;
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.message {
  background: rgba(30,30,40,0.85);
  border: 1px solid #444;
  border-radius: 8px;
  padding: 8px 12px;
  margin-bottom: 12px;
  line-height: 1.4em;
  box-shadow: 0 2px 8px #1114;
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  word-break: break-word;
}

.msg-text {
  font-size: 1.3em;
  color: #fff;
  margin-top: 4px;
  font-weight: bold;
}