body {
    color: #00FF00; 
    background-color: black; 
    display: flex;
    justify-content: center;
    align-items: center;
    height: 100vh;
    margin: 0;
    overflow: hidden;
    font-family: 'Courier New', Courier, monospace; 
}

/* Retro Computer */
.container {
    background-color: black;
    color: #00FF00;
    border: 2px solid #00FF00; 
    padding: 30px;
    width: 90%; 
    max-width: 800px; 
    margin: 0 auto; 
    box-shadow: 0 0 20px rgba(0, 255, 0, 0.5); 
    z-index: 10;
    border-radius: 10px;
   ;
}

#option-buttons {
    display: none;
 
}

/* Blinking square cursor */
#text::after {
    content: ''; 
    display: inline-block;
    width: 20px; 
    height: 30px; 
    background-color: #00FF00; 
    margin-left: 5px;
    animation: blink 1s step-end infinite;
}

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


/* Base style for all buttons */
.btn {
    background-color: black;
    color: white; /* Options will be white */
    border: 1px solid #00FF00;
    padding: 10px;
    cursor: pointer;
    font-family: 'Courier New', Courier, monospace;
    margin: 10px 0;
    font-size: 18px;
}

/* Styling for key action texts */
.btn span.key-action {
    color: #FFFFE0; /* Yellow-white color for key actions */
}

/* Hover effect for buttons */
.btn:hover {
    background-color: #00FF00;
    color: black;
}

/* Typewriter effect */
#text {
    white-space: pre-wrap;
    font-size: 18px;
    font-family: 'Courier New', Courier, monospace;
    max-height: 300px;
    overflow-y: auto;
    font-size: 30px;
}

/* Stationary stars backdrop */
.star {
    position: absolute;
    background: white;
    border-radius: 50%;
    width: 2px;
    height: 2px;
    opacity: 0.8;
    z-index: 1;
}

/* Twinkling stars */
.twinkling-star {
    animation: twinkle 2s infinite ease-in-out;
}

@keyframes twinkle {
    0%, 90% {
        opacity: 0.8;
    }
    50% {
        opacity: 0.4;
    }
}