:root{font-family:system-ui,Avenir,Helvetica,Arial,sans-serif;line-height:1.5;font-weight:400;color-scheme:light dark;color:#ffffffde;background-color:#242424;font-synthesis:none;text-rendering:optimizeLegibility;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale}a{font-weight:500;color:#646cff;text-decoration:inherit}a:hover{color:#535bf2}body{margin:0;display:flex;place-items:center;min-width:320px;min-height:100vh}h1{font-size:3.2em;line-height:1.1}button{border-radius:8px;border:1px solid transparent;padding:.6em 1.2em;font-size:1em;font-weight:500;font-family:inherit;background-color:#1a1a1a;cursor:pointer;transition:border-color .25s}button:hover{border-color:#646cff}button:focus,button:focus-visible{outline:4px auto -webkit-focus-ring-color}@media (prefers-color-scheme: light){:root{color:#213547;background-color:#fff}a:hover{color:#747bff}button{background-color:#f9f9f9}}body{margin:0;height:100vh;font-family:Montserrat,sans-serif;display:flex;justify-content:center;align-items:center;overflow:hidden;color:#fff}body:before{content:"";position:absolute;inset:0;background-color:#0f172a;background-image:linear-gradient(90deg,rgba(255,255,255,.05) 1px,transparent 1px),linear-gradient(rgba(255,255,255,.05) 1px,transparent 1px);background-size:60px 60px;animation:moveGrid 20s linear infinite;z-index:-1}@keyframes moveGrid{0%{background-position:0 0,0 0}to{background-position:200px 0,0 200px}}.container{text-align:center;position:relative;z-index:1}.title{font-size:2rem;margin-bottom:1rem;color:#60a5fa;text-shadow:0 0 15px rgba(96,165,250,.5)}.letter-display{font-size:10rem;font-weight:700;margin:1rem 0;text-shadow:0 0 40px rgba(255,255,255,.3);transition:transform .3s ease}.letter-display.animate{transform:scale(1.2)}.buttons{display:flex;justify-content:center;gap:1rem;margin-top:1rem}button{font-size:1.2rem;padding:.5rem 1.5rem;border:none;border-radius:10px;cursor:pointer;font-weight:700;color:#fff;box-shadow:0 0 10px #ffffff26;transition:transform .2s ease,background .2s ease}button:hover:not(:disabled){transform:scale(1.05)}button:disabled{opacity:.5;cursor:not-allowed}button:nth-child(1){background:#10b981}button:nth-child(2){background:#ef4444}button:nth-child(3){background:#3b82f6}.remaining{margin-top:1rem;font-size:1rem;color:#93c5fd}.stop-image{width:180px;height:180px;object-fit:cover;border-radius:20px;margin-bottom:1rem;transition:transform .3s ease,opacity .3s ease}.stop-image:hover{transform:scale(1.05);opacity:.9}