body{background-color:#000;color:#0f0;font-family:'Courier New',monospace;margin:0;padding:20px;line-height:1.5;overflow-x:hidden}.container{max-width:800px;margin:0 auto;padding:20px;border:1px solid #0f0;box-shadow:0 0 10px rgba(0,255,0,0.5);min-height:80vh;display:flex;flex-direction:column}h1{color:#0f0;text-align:center;border-bottom:1px solid #0f0;padding-bottom:10px;margin-top:0}.prompt,.response{margin-bottom:15px}.error{color:#ff0}.danger{color:#f00}.success{color:#0f0}.input-line{display:flex;align-items:center}.prompt-text{color:#0f0;margin-right:10px}input{background-color:#000;color:#0f0;border:none;outline:none;font-family:'Courier New',monospace;flex-grow:1;font-size:16px}@media(max-width:600px){.container{padding:10px}body{padding:10px}}