@import url('https://fonts.googleapis.com/css2?family=Orbitron:wght@400;500;700&display=swap');

body.dark {
    background: #050505;
    color: #00FF99;
    font-family: 'Orbitron', sans-serif;
    text-transform: uppercase;
}

.dark ::selection {
    background: #00FF99;
    color: black;
    text-shadow: 0px 0px 5px #000;
}

.dark a {
    color: #00FFFF;
    text-shadow: 0px 0px 5px #00FFFF;
    position: relative;
    transition: color 0.3s ease-in-out;
}

.dark a::after {
    content: '';
    position: absolute;
    left: 0;
    bottom: -2px;
    width: 100%;
    height: 2px;
    background: linear-gradient(90deg, transparent, #00FFFF, transparent);
    transform: scaleX(0);
    transition: transform 0.3s ease-in-out;
}

.dark a:hover {
    color: #FFFF00;
    text-shadow: 0px 0px 10px #FFFF00;
}

.dark a:hover::after {
    transform: scaleX(1);
}

.dark a:active {
    color: #FF0000;
    text-shadow: 0px 0px 10px #FF0000;
}

.dark button {
    background: black;
    color: #00FFFF;
    border: 2px solid #00FFFF;
    padding: 10px 20px;
    font-size: 1rem;
    font-family: 'Orbitron', sans-serif;
    text-transform: uppercase;
    box-shadow: 0px 0px 8px #00FFFF;
    cursor: pointer;
    transition: all 0.3s ease-in-out;
    text-shadow: 0px 0px 5px #00FFFF;
    border-radius: 4px;
}

.dark button:hover {
    background: #00FFFF;
    color: black;
    text-shadow: 0px 0px 10px black;
    box-shadow: 0px 0px 12px #00FFFF;
}

.dark button:active {
    background: #FF0000;
    color: white;
    border-color: #FF0000;
    box-shadow: 0px 0px 12px #FF0000;
}

.dark .groupbox {
    display: inline-block;
    border: 2px solid #00FF99;
    padding: 1.5rem;
    margin: 1rem;
    position: relative;
    border-radius: 4px;
    box-shadow: 0px 0px 8px #00FF99;
    background: rgba(0, 0, 0, 0.8);
    text-shadow: 0px 0px 5px #00FF99;
}

.dark .groupbox::before {
    content: attr(data-caption);
    position: absolute;
    top: -12px; 
    left: 12px;
    background: black; 
    padding: 0 0.5rem;
    font-weight: bold;
    font-size: 0.9rem;
    border-radius: 4px;
    border: 1px solid #00FF99;
    color: #00FF99;
    text-shadow: 0px 0px 3px #00FF99;
}

.dark #display {
    background-color: #121212;
    color: #00FF99;
    font-family: 'Orbitron', sans-serif;
    font-weight: 400;
    border: 2px solid #00FF99;
    padding: 1rem;
    box-shadow: 0px 0px 6px #00FF99;
}

.dark img.icon-inline {
    height: 0.6lh;
    filter: invert(1) drop-shadow(0px 0px 5px #00FF99);
}

.dark span.code {
    background-color: rgba(0, 255, 153, 0.2);
    padding: 0.1rem 0.3rem;
    font-family: 'Courier New', Courier, monospace;
    border: 1px solid #00FF99;
    box-shadow: 0px 0px 4px #00FF99;
}

.dark .error-list {
    color: red;
    text-shadow: 0px 0px 6px red;
}


.dark hr {
    color: #00FF99;
}