body{display:flex;justify-content:center;align-items:center;min-height:100vh;margin:0;background-color:#222;color:#0f0;font-family:Arial,sans-serif;overflow:hidden}#clock-container{display:flex;flex-direction:column;align-items:center;justify-content:center}#clock{font-size:8em;text-align:center;font-weight:700}#timezone{font-size:2em;text-align:center;margin-top:10px;color:#0f0}@media (max-width: 600px){#clock{font-size:4em}#timezone{font-size:1em}}#environment-marker{position:fixed;bottom:20px;right:20px;font-size:2em;color:#0f0;text-shadow:0 0 10px #0f0;z-index:1000}