html,body{margin:0;padding:0;background-color:#000;color:#0f0;font-family:Arial,sans-serif;font-weight:700;display:flex;justify-content:center;align-items:center;height:100vh;overflow:hidden;user-select:none;touch-action:pan-y;overscroll-behavior:none}#clock{text-align:center;text-shadow:0 0 10px #0f0}#clock .hour-minutes{font-size:26vw;margin-right:3vw}#clock .seconds{font-size:20vw}.hidden{display:none!important}#power-btn{position:fixed;top:50%;left:50%;transform:translate(-50%,-50%);width:20vw;height:20vw;cursor:pointer;z-index:100}@keyframes breathe{0%,100%{filter:drop-shadow(0 0 5px #0f0)}50%{filter:drop-shadow(0 0 20px #0f0)}}#power-btn svg{width:100%;height:100%;animation:breathe 3s ease-in-out infinite}