html,
 body {
     margin: 0;
     height: 100%;
     background: #0b0d0f;
     display: flex;
     align-items: center;
     justify-content: center;
     font-family: "Courier New", monospace;
     color: #33ff66;
 }

 .monitor {
     width: 800px;
     max-width: 90%;
     background: radial-gradient(circle, #1a1f1a 0%, #050705 70%);
     border-radius: 25px;
     padding: 30px;
     box-shadow: 0 0 40px rgba(0, 255, 120, .2),
         inset 0 0 60px rgba(0, 255, 120, .08);
     position: relative;
 }

 .screen {
     display: flex;
     flex-direction: column;
     height: 600px;
     overflow: hidden;
     position: relative;
     border: 2px solid #1f5;
     border-radius: 15px;
     padding: 30px 20px 30px 20px;
     background: rgba(0, 0, 0, .4);
     text-shadow: 0 0 6px rgba(0, 255, 120, .6);
     min-height: 600px;
     animation: glowPulse 4s ease-in-out infinite;
 }

 .monitor {
     text-shadow:
         0 0 6px rgba(0, 255, 120, 0.6),
         0.6px 0 rgba(255, 0, 0, 0.18),
         -1.6px 0 rgba(0, 255, 255, 0.18);
 }

 .monitor::before {
     content: "";
     position: absolute;
     top: 30px;
     left: 30px;
     right: 30px;
     bottom: 30px;
     border-radius: 15px;
     pointer-events: none;
     z-index: 5;
     background:
         radial-gradient(ellipse at center,
             rgba(255, 255, 255, 0.05) 0%,
             rgba(0, 0, 0, 0.35) 95%),
         linear-gradient(to bottom,
             rgba(0, 0, 0, 0.15) 0%,
             rgba(0, 0, 0, 0.02) 40%,
             rgba(0, 0, 0, 0.08) 100%);
 }

 #spacer {
     flex-grow: 1;
 }

 #viewport {
     width: 100%;
     overflow-y: auto;

     /* Firefox */
     scrollbar-width: none;

     /* IE / old Edge */
     -ms-overflow-style: none;
 }

 #viewport::-webkit-scrollbar {
     display: none;
     /* Chrome, Safari */
 }

 .hidden {
     display: none
 }

 .line {
     white-space: pre
 }

 .cursor {
     display: inline-block;
     width: 0.7ch;
     height: 1em;
     background-color: #00ff00;
     animation: blink 1s steps(1) infinite;
 }

 .input {
     caret-color: transparent;
 }

 @keyframes blink {
     50% {
         opacity: 0
     }
 }

 a {
     color: #33ff66;
     text-decoration: none
 }

 a:hover {
     color: #aaffcc
 }

 .top-block {
     display: flex;
     gap: 40px;
     align-items: flex-start;
     margin-bottom: 20px;
 }

 .logo {
     margin-left: 60px;
     width: 400px;
 }

 .options {
     margin-bottom: 20px;
     margin-top: 10px;
     /* white-space: pre; */
 }

 .prompt-line {
     display: flex;
     align-items: center;
     white-space: pre;
 }

 .prompt-line .cursor {
     margin-left: 2px;
 }

 .prompt-line:not(.active) .cursor {
     display: none;
 }

 .prompt {
     margin-right: 6px;
 }

 pre {
     font-family: "Courier New", monospace;
 }

 .input {
     outline: none;
     min-width: 0;
 }

 @keyframes glowPulse {
     0% {
         box-shadow:
             0 0 25px rgba(0, 255, 120, 0.15),
             inset 0 0 40px rgba(0, 255, 120, 0.08);
     }

     50% {
         box-shadow:
             0 0 45px rgba(0, 255, 120, 0.35),
             inset 0 0 60px rgba(0, 255, 120, 0.15);
     }

     100% {
         box-shadow:
             0 0 25px rgba(0, 255, 120, 0.15),
             inset 0 0 40px rgba(0, 255, 120, 0.08);
     }
 }