*{box-sizing:border-box}
html,body{height:100%}
body{
  margin:0;
  background:
    radial-gradient(1100px 700px at 50% -15%, #16291f 0%, #0a1410 45%, #050908 100%);
  color:#dfeae2;
  font-family:ui-sans-serif,system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;
  display:grid;
  grid-template-rows:auto minmax(0,1fr) auto;
  height:100dvh;
  overflow:hidden;
  user-select:none;
  -webkit-tap-highlight-color:transparent;
}

/* ── HUD ── */
.hud{
  display:grid;grid-template-columns:1fr auto 1fr;align-items:center;
  gap:10px;padding:14px clamp(12px,4vw,34px) 4px;
}
.stat{display:flex;flex-direction:column;gap:1px}
.stat.right{align-items:flex-end}
.label{font-size:10px;letter-spacing:.16em;text-transform:uppercase;color:#7c9187}
.val{
  font-family:ui-monospace,SFMono-Regular,Menlo,monospace;
  font-size:clamp(18px,4.2vw,26px);font-weight:700;
  color:#b8ff3d;font-variant-numeric:tabular-nums;line-height:1.1;
}
.title{
  margin:0;font-size:clamp(13px,3.2vw,20px);letter-spacing:.3em;
  font-weight:800;color:#eef7f1;white-space:nowrap;
}
.title span{color:#b8ff3d}

/* ── Поле ── */
.stage{display:grid;place-items:center;min-height:0;padding:6px 12px}
.board{
  position:relative;display:grid;place-items:center;
  border-radius:14px;background:#0d1512;
  box-shadow:
    0 0 0 1px rgba(184,255,61,.16),
    0 26px 60px -24px rgba(0,0,0,.95),
    0 0 90px -40px rgba(184,255,61,.55);
}
canvas{display:block;touch-action:none;border-radius:14px}

/* ── Оверлей ── */
.overlay{
  position:absolute;inset:0;border-radius:14px;
  display:flex;flex-direction:column;align-items:center;justify-content:center;
  gap:10px;padding:18px;text-align:center;
  background:rgba(6,12,9,.84);
  -webkit-backdrop-filter:blur(5px);backdrop-filter:blur(5px);
}
.overlay[hidden]{display:none}
.overlay h2{margin:0;font-size:clamp(16px,4.2vw,24px);letter-spacing:.06em;color:#f2fbf5}
.overlay p{margin:0;font-size:clamp(12px,3vw,14px);color:#8fa498}
.overlay button{
  margin-top:6px;padding:11px 22px;border:0;border-radius:999px;cursor:pointer;
  font:inherit;font-weight:700;letter-spacing:.03em;
  color:#08120b;background:linear-gradient(180deg,#caff5c,#8ce02a);
  box-shadow:0 8px 24px -10px rgba(184,255,61,.9);
  transition:transform .12s ease, filter .12s ease;
}
.overlay button:hover{filter:brightness(1.08)}
.overlay button:active{transform:scale(.96)}

/* ── Футер / управление ── */
.foot{
  display:flex;align-items:center;justify-content:center;gap:12px;
  padding:8px 16px calc(10px + env(safe-area-inset-bottom));
  flex-wrap:wrap;
}
.chip{
  font-size:11px;letter-spacing:.06em;color:#8fa498;
  border:1px solid rgba(184,255,61,.18);border-radius:999px;
  padding:5px 11px;white-space:nowrap;
  font-family:ui-monospace,SFMono-Regular,Menlo,monospace;
}
.dpad{
  display:none;grid-template-columns:repeat(3,var(--k,52px));
  grid-template-rows:repeat(3,var(--k,52px));gap:6px;justify-content:center;
}
.key{
  display:grid;place-items:center;border:1px solid rgba(184,255,61,.22);
  background:rgba(184,255,61,.07);color:#cdf88f;border-radius:12px;
  font-size:15px;cursor:pointer;transition:background .12s ease, transform .08s ease;
}
.key:active{background:rgba(184,255,61,.28);transform:scale(.94)}
.key.up{grid-area:1/2/2/3}
.key.left{grid-area:2/1/3/2}
.key.right{grid-area:2/3/3/4}
.key.down{grid-area:3/2/4/3}

@media (pointer:coarse){
  .dpad{display:grid}
  .hint{display:none}
  :root{--k:48px}
}
@media (max-height:620px){
  :root{--k:42px}
  .hud{padding-top:6px}
  .title{font-size:12px}
}
@media (prefers-reduced-motion:reduce){
  *{transition:none !important}
}