body { background: #000; color: #0f0; font-family: 'Courier New', Courier, monospace; margin: 0; padding: 20px; }
#terminal { max-width: 800px; margin: auto; }
.prompt { color: #0f0; margin-right: 10px; }
input { background: transparent; border: none; color: #fff; font-family: inherit; font-size: 16px; outline: none; width: 70%; }
#output { margin-bottom: 10px; }
.cmd-line { margin-bottom: 5px; }