:root{
  /* Layout: Spielbild 240×160 (native Handheld-Auflösung, 3:2), ganzzahlig hochskaliert, mittig auf dunkler Bühne; Bedienleiste bzw. Touch-Steuerung darunter. Bewusst ein dunkler Look. */
  --bg:#121026; --bg2:#1f1b46; --ink:#e9edff; --dim:#8e9bd8; --hi:#ffd24a; --key:#2a2547; --key-hi:#423b72; --key-lo:#0d0b1c; --edge:#36306a;
  --f:"Courier New",monospace;
  color-scheme:dark;
}
*{box-sizing:border-box}
html,body{height:100%;margin:0}
[hidden]{display:none!important}
body{background:radial-gradient(ellipse at 50% 28%,var(--bg2),var(--bg) 72%);background-color:var(--bg);color:var(--ink);font-family:var(--f)}
.stage{min-height:100%;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:14px;padding-block:16px;padding-inline:16px}
.stage:fullscreen{background:#000;padding:0}
.screen{position:relative;border-radius:10px;overflow:hidden;line-height:0;max-width:100%;
  box-shadow:0 0 0 3px #0a0918,0 0 0 4px var(--edge),0 26px 60px rgba(0,0,0,.55),0 0 110px rgba(90,120,255,.2)}
canvas{display:block;image-rendering:pixelated;image-rendering:crisp-edges;touch-action:none;max-width:100%}
.lcd{position:absolute;inset:0;pointer-events:none;
  background-image:linear-gradient(rgba(0,0,0,.13) 1px,transparent 1px),linear-gradient(90deg,rgba(0,0,0,.13) 1px,transparent 1px),linear-gradient(160deg,rgba(255,255,255,.07),transparent 38%);
  background-size:var(--px) var(--px),var(--px) var(--px),100% 100%}
.bar{display:flex;flex-wrap:wrap;align-items:center;justify-content:center;gap:8px 18px;font-size:13px;color:var(--dim);letter-spacing:.05em;max-width:100%}
.bar kbd{font:700 11px var(--f);color:var(--ink);border:1px solid var(--dim);border-bottom-width:3px;border-radius:4px;padding:1px 6px;margin-right:4px}
.tbtn{font:700 12px var(--f);letter-spacing:.08em;color:var(--ink);background:var(--key);border:0;border-radius:6px;padding:6px 12px;box-shadow:inset 0 2px 0 var(--key-hi),0 3px 0 var(--key-lo);cursor:pointer}
.tbtn:focus-visible{outline:2px solid var(--hi);outline-offset:2px}
.tbtn:active{transform:translateY(2px);box-shadow:inset 0 2px 0 var(--key-hi)}
.touch{display:grid;width:100%;max-width:720px;grid-template-columns:auto 1fr auto;align-items:center;gap:8px;user-select:none;-webkit-user-select:none;-webkit-touch-callout:none}
.pad{display:flex;gap:10px}
.tk{width:70px;height:70px;border-radius:50%;border:0;background:var(--key);color:var(--ink);font:700 15px var(--f);letter-spacing:.04em;touch-action:none;box-shadow:inset 0 3px 0 var(--key-hi),0 5px 0 var(--key-lo)}
.tk.on{transform:translateY(4px);box-shadow:inset 0 3px 0 var(--key-hi),0 1px 0 var(--key-lo);background:var(--key-hi)}
.tk.gas{width:84px;height:84px;background:#2f6b3f;box-shadow:inset 0 3px 0 #4c9a60,0 5px 0 var(--key-lo)}
.tk.brk{background:#7a2b36;box-shadow:inset 0 3px 0 #a84554,0 5px 0 var(--key-lo)}
.mid{display:flex;flex-direction:column;align-items:center;gap:8px}
.mid .tk{width:66px;height:26px;border-radius:14px;font-size:11px}
@media (pointer:coarse){.touch{display:grid}.keys{display:none}}
@media (max-width:420px){.tk{width:60px;height:60px}.tk.gas{width:72px;height:72px}}

.tbtn{min-height:44px}.tk:focus-visible,canvas:focus-visible{outline:2px solid var(--hi);outline-offset:3px}
.score-panel{width:100%;max-width:720px;text-align:center;background:#1f1b46;border:1px solid var(--edge);border-radius:12px;padding:16px;line-height:1.5}
.score-panel h2{font-size:20px;color:var(--hi);margin:0 0 6px}.score-panel p{margin:4px 0 12px}
.share-actions{display:flex;flex-wrap:wrap;justify-content:center;gap:8px}.share-actions a{display:inline-flex;align-items:center;text-decoration:none}
.score-panel textarea{width:100%;margin-top:10px;padding:10px;resize:none;background:var(--bg);color:var(--ink);border:1px solid var(--dim);font:14px var(--f)}
.share-primary{background:#ffd24a;color:#17132c}.share-status{font-size:13px;min-height:1.5em;color:var(--dim)}
@media(max-width:480px){.stage{padding:12px;gap:12px}.touch{grid-template-columns:1fr auto 1fr;gap:6px}.pad{gap:6px}.pad:last-child{justify-content:flex-end}.tk{width:46px;height:52px;font-size:11px}.tk.gas{width:52px;height:60px}.mid .tk{width:52px;height:32px}.bar{gap:6px}.keys{display:none}}