html, body {
  margin: 0;
  padding: 0;
  background: #000;
  color: #0f0;
  font-family: monospace;
  height: 100%;
  overflow: hidden;
}

#terminal {
  height: 100%;
  display: flex;
  flex-direction: column;
  padding: 10px;
  box-sizing: border-box;
}

#header {
  border-bottom: 1px solid #0f0;
  padding-bottom: 6px;
  margin-bottom: 6px;
}

#room-title {
  font-weight: bold;
  text-transform: uppercase;
}

#room-desc {
  margin-top: 4px;
  white-space: pre-wrap;
}

#energy-bar {
  margin-top: 4px;
}

#output {
  flex: 1;
  overflow-y: auto;
  white-space: pre-wrap;
}

#input-line {
  display: flex;
}

.prompt {
  margin-right: 4px;
}

input {
  background: black;
  color: #0f0;
  border: none;
  outline: none;
  flex: 1;
  font-family: monospace;
}