:root{--background-color: #000;--text-color: #00ff00}html,body{overflow:hidden;position:fixed;width:100%;height:100%;box-sizing:border-box}body{background:var(--background-color);color:var(--text-color);font-family:Courier New,Courier,monospace;margin:0;display:flex;flex-direction:column;align-items:center;justify-content:center;padding:20px;font-size:24px}a{color:var(--text-color)}#start-screen{text-align:center;white-space:pre;font-size:24px;line-height:1.5;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:20px;height:100%;width:100%}#title{font-size:36px;letter-spacing:2px}@keyframes blink{0%,to{opacity:1}50%{opacity:.5}}.blink-animation,.start-message,.start-message-mobile{animation:blink 1s infinite}.start-message-mobile{display:none}#tetris-container{display:flex;flex-direction:row;gap:40px;align-items:flex-start}#game-board,#next-piece,#scoreboard,#instructions{white-space:pre;font-size:20px;line-height:1.1;letter-spacing:1px;margin-bottom:20px}#game-board{margin-right:20px}#scoreboard{margin-bottom:20px}.mobile-only{display:none}@media (max-width: 768px){body{padding:20px;justify-content:flex-start;font-size:20px}.hide-on-mobile{display:none}#start-screen{height:100vh;padding:0;margin:0;position:fixed;top:0;left:0;background:var(--background-color)}#title{font-size:28px;margin-bottom:20px}.start-message{display:none}.start-message-mobile{display:block;font-size:20px}#tetris-container{flex-direction:column;gap:10px;width:100%;align-items:center;height:calc(100vh - 40px);padding-top:10px}#game-board{margin-right:0;font-size:16px;letter-spacing:0}#next-piece,#scoreboard{font-size:16px;margin-bottom:10px}#instructions,.mobile-controls{display:none}#mobile-top-container{display:flex;justify-content:space-between;width:100%;margin-bottom:10px;padding:0}.mobile-only{display:block}.game-author-credits{position:fixed;top:10px;bottom:auto}}#pause-button{width:100%;text-align:center;padding:10px;margin-top:10px;background:var(--background-color);border:2px solid var(--text-color);color:var(--text-color);font-family:Courier New,Courier,monospace;font-size:20px;cursor:pointer;-webkit-user-select:none;user-select:none;-webkit-tap-highlight-color:transparent}#pause-button:active{background:var(--text-color);color:var(--background-color)}.game-author-credits{font-weight:400;font-size:14px;color:var(--text-color);text-align:center;margin-top:20px;position:fixed;bottom:10px;left:0;right:0;width:100%;z-index:1000;pointer-events:auto}