*{box-sizing:border-box;margin:0;padding:0}
:root{--acc:#3ddc84;--cy:#5cc8ff}
body{min-height:100dvh;background:radial-gradient(1200px 700px at 50% -15%,#132333,#070d14 62%);color:#e8f6ff;font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;display:grid;place-items:center;padding:14px;overflow:hidden;-webkit-tap-highlight-color:transparent}
.app{width:100%;max-width:560px;height:calc(100dvh - 28px);max-height:880px;display:flex;flex-direction:column;gap:12px}
header{display:flex;justify-content:space-between;align-items:center}
.brand{font-weight:700;letter-spacing:.2em;font-size:15px;display:flex;align-items:center;gap:8px}
.brand sup{color:var(--acc);font-size:10px;letter-spacing:0}
.dot{width:9px;height:9px;background:var(--acc);border-radius:2px;box-shadow:0 0 12px var(--acc)}
.stats{display:flex;gap:20px;text-align:right}
.stats b{display:block;font-size:18px;color:var(--acc);font-variant-numeric:tabular-nums}
.stats span{font-size:9.5px;opacity:.45;letter-spacing:.14em;text-transform:uppercase}
.stage{position:relative;flex:1;min-height:0;border-radius:16px;overflow:hidden;border:1px solid rgba(92,200,255,.18);background:radial-gradient(80% 60% at 50% 35%,rgba(30,62,92,.6),rgba(6,12,20,.95));box-shadow:inset 0 0 70px rgba(92,200,255,.07)}
canvas{display:block;width:100%;height:100%;touch-action:none}
.overlay{position:absolute;inset:0;display:grid;place-content:center;justify-items:center;gap:10px;text-align:center;padding:22px;background:rgba(4,9,15,.82);backdrop-filter:blur(6px);opacity:0;pointer-events:none;transition:.25s}
.overlay.show{opacity:1;pointer-events:auto}
.overlay h2{font-size:24px;letter-spacing:.04em}
.overlay p{font-size:12.5px;line-height:1.65;opacity:.62;max-width:34ch}
.btn{padding:10px 28px;border:0;border-radius:9px;background:var(--acc);color:#04140c;font:inherit;font-weight:700;letter-spacing:.09em;cursor:pointer;box-shadow:0 0 26px rgba(61,220,132,.4);transition:.15s}
.btn:hover{filter:brightness(1.12)}
.pad{display:grid;justify-items:center;gap:6px}
.pad .row{display:flex;gap:6px}
.pad button{width:58px;height:44px;border-radius:10px;border:1px solid rgba(92,200,255,.2);background:rgba(92,200,255,.07);color:#e8f6ff;font-size:13px;cursor:pointer;font-family:inherit}
.pad button:active{background:rgba(61,220,132,.25)}
.hint{text-align:center;font-size:10px;opacity:.38;letter-spacing:.08em}
@media(min-width:760px){.pad{display:none}}