body { background: #000; color: white; font-family: sans-serif; margin: 0; }
header { display: flex; gap: 1em; background: #111; padding: 1em; box-shadow: 0 0 10px gold; }
header button { background: transparent; color: gold; border: none; font-size: 1.2em; cursor: pointer; }
header button:hover { text-shadow: 0 0 10px gold; }
.panel { display: none; background: #222; margin: 1em; padding: 1em; border: 1px solid gold; }
.log { height: 200px; overflow-y: auto; background: #111; padding: 0.5em; }
input { width: 70%; padding: 0.5em; }
button { padding: 0.5em; margin-left: 0.5em; }