:root{
  --bg:#000;
  --surface:#1c1c1e;
  --surface-2:#2c2c2e;
  --surface-3:#3a3a3c;
  --text:#f5f5f7;
  --secondary:#98989d;
  --separator:rgba(84,84,88,.65);
  --red:#ff453a;
  --blue:#0a84ff;
  --green:#30d158;
  --yellow:#ffd60a;
  --purple:#bf5af2;
  --radius:24px;
  color-scheme:dark;
  font-family:-apple-system,BlinkMacSystemFont,"SF Pro Display","SF Pro Text","Helvetica Neue",Arial,sans-serif
}
*{
  box-sizing:border-box;
  -webkit-tap-highlight-color:transparent;
  -webkit-touch-callout:none;
  -webkit-user-select:none;
  user-select:none
}
html,body{height:100%;margin:0;background:var(--bg);color:var(--text)}
body{overflow:hidden;overscroll-behavior:none}
button,input{font:inherit;color:inherit}
button{cursor:pointer}
.hidden{display:none!important}
#app{
  position:relative;
  min-height:100svh;
  height:100%;
  overflow:hidden;
  isolation:isolate;
  padding:max(16px,env(safe-area-inset-top)) max(16px,env(safe-area-inset-right)) max(16px,env(safe-area-inset-bottom)) max(16px,env(safe-area-inset-left));
  background:radial-gradient(circle at 50% -18%,rgba(255,255,255,.08),transparent 42%),#000;
  touch-action:manipulation
}
.screen{height:100%;display:flex;flex-direction:column;align-items:center;justify-content:center;text-align:center}
button:focus-visible,input:focus-visible,[tabindex]:focus-visible{outline:3px solid rgba(10,132,255,.9);outline-offset:3px}

.icon-button{
  position:absolute;z-index:40;
  right:max(18px,env(safe-area-inset-right));
  top:max(18px,env(safe-area-inset-top));
  width:44px;height:44px;
  border:1px solid rgba(255,255,255,.12);
  border-radius:50%;
  background:rgba(44,44,46,.76);
  -webkit-backdrop-filter:saturate(180%) blur(20px);
  backdrop-filter:saturate(180%) blur(20px);
  box-shadow:0 8px 24px rgba(0,0,0,.28);
  font-size:1.05rem
}
.icon-button:active{transform:scale(.94)}
.icon-button.muted{color:var(--secondary)}

.intro{gap:clamp(34px,7vh,64px)}
.intro h1{
  margin:0;
  font-size:clamp(3.6rem,17vw,8rem);
  line-height:.82;
  letter-spacing:-.055em;
  font-weight:850
}
.intro h1 span{color:var(--red)}
.forbidden{
  position:relative;
  width:min(48vw,205px);
  aspect-ratio:1;
  border:0;
  border-radius:50%;
  background:linear-gradient(180deg,#ff6961 0%,#ff453a 48%,#d62f27 100%);
  box-shadow:inset 0 1px 0 rgba(255,255,255,.42),0 12px 0 #851b17,0 22px 44px rgba(0,0,0,.5);
  transition:transform .12s ease,box-shadow .12s ease,filter .12s ease
}
.forbidden::after{
  content:"";
  position:absolute;
  inset:10%;
  border-radius:50%;
  border:1px solid rgba(255,255,255,.28);
  pointer-events:none
}
.forbidden span{position:relative;z-index:2;font-size:clamp(1.15rem,5.3vw,1.85rem);line-height:.9;font-weight:850;letter-spacing:-.02em}
.forbidden:active,.forbidden.pressed{transform:translateY(8px) scale(.98);box-shadow:inset 0 1px 0 rgba(255,255,255,.32),0 4px 0 #851b17,0 9px 20px rgba(0,0,0,.4);filter:brightness(.98)}

.hud{
  position:absolute;z-index:20;
  left:max(16px,env(safe-area-inset-left));
  top:max(14px,env(safe-area-inset-top));
  height:58px;
  min-width:180px;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:28px;
  padding:0 18px;
  border:1px solid rgba(255,255,255,.1);
  border-radius:20px;
  background:rgba(28,28,30,.72);
  -webkit-backdrop-filter:saturate(180%) blur(20px);
  backdrop-filter:saturate(180%) blur(20px);
  box-shadow:0 10px 30px rgba(0,0,0,.25);
  pointer-events:none
}
.hud small{display:block;color:var(--secondary);font-size:.62rem;font-weight:700;letter-spacing:.08em}
.hud strong{display:block;margin-top:1px;font-size:1.45rem;font-weight:800;letter-spacing:-.03em}

#game{justify-content:flex-start;padding:88px clamp(2px,2vw,18px) 0;touch-action:none}
.instruction{
  max-width:820px;
  min-height:1em;
  padding:0 8px;
  font-size:clamp(2rem,8.8vw,4.4rem);
  line-height:.94;
  letter-spacing:-.045em;
  font-weight:820;
  text-wrap:balance
}
.sub{
  min-height:28px;
  max-width:680px;
  margin-top:8px;
  padding:0 12px;
  color:var(--secondary);
  font-size:clamp(.8rem,3vw,.98rem);
  line-height:1.3;
  font-weight:600
}
.timer{
  width:min(88vw,600px);
  height:5px;
  margin:8px 0 14px;
  overflow:hidden;
  border-radius:999px;
  background:var(--surface-2)
}
.timer i{display:block;height:100%;border-radius:inherit;background:var(--blue);transform-origin:left}
.arena{
  position:relative;
  flex:1;
  width:min(100%,760px);
  min-height:0;
  overflow:hidden;
  border:1px solid rgba(255,255,255,.08);
  border-radius:28px 28px 0 0;
  background:rgba(28,28,30,.96);
  box-shadow:inset 0 1px 0 rgba(255,255,255,.04);
  touch-action:none
}
.arena-flash{animation:arenaFlash .45s}

.hero-button,.target,.memory-dot,.moving-target,.drag-piece,.swipe-card,.color-orb,.bait-button{position:absolute;z-index:2;border:0;display:grid;place-items:center}
.hero-button{
  width:min(44vw,184px);aspect-ratio:1;border-radius:50%;
  background:var(--red);font-size:1.5rem;font-weight:800;
  box-shadow:inset 0 1px 0 rgba(255,255,255,.22),0 10px 24px rgba(0,0,0,.3);
  transition:transform .12s ease,background .15s ease
}
.hero-button:active,.hero-button.active{transform:translate(-50%,-50%) scale(.95)!important}
.hero-button.ready{background:var(--green);color:#001706}
.hold-ring{position:absolute;inset:-12px;border-radius:50%;background:conic-gradient(var(--blue) calc(var(--p,0)*1turn),rgba(255,255,255,.1) 0);-webkit-mask:radial-gradient(transparent 62%,#000 64%);mask:radial-gradient(transparent 62%,#000 64%)}

.choice-grid{position:absolute;z-index:2;left:8%;right:8%;top:18%;bottom:10%;display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:12px}
.math-question~.choice-grid,.direction-hero~.choice-grid{top:34%}
.arcade-choice{
  min-height:56px;
  border:1px solid rgba(255,255,255,.09);
  border-radius:18px;
  background:var(--surface-2);
  box-shadow:inset 0 1px 0 rgba(255,255,255,.04);
  font-size:clamp(1rem,4.8vw,1.75rem);
  font-weight:750;
  transition:transform .1s ease,background .1s ease
}
.arcade-choice:active{transform:scale(.96);background:var(--surface-3)}

.tile-grid,.pair-grid{position:absolute;z-index:2;inset:8%;display:grid;grid-template-columns:repeat(3,1fr);gap:10px}
.tile,.pair-card{
  min-width:0;
  border:1px solid rgba(255,255,255,.08);
  border-radius:18px;
  background:var(--surface-2);
  color:var(--text);
  font-size:clamp(1.6rem,7vw,3rem);
  font-weight:700
}
.tile:active,.pair-card:active{transform:scale(.96)}
.tile.lit{background:var(--yellow);color:#1c1500}
.tile.picked,.pair-card.picked{background:rgba(48,209,88,.24);border-color:rgba(48,209,88,.7)}
.math-question,.direction-hero{position:absolute;z-index:2;left:0;right:0;top:9%;font-size:clamp(2.8rem,14vw,6rem);font-weight:820;letter-spacing:-.045em}

.memory-dot{width:64px;height:64px;border-radius:50%;background:var(--surface-2);color:var(--secondary);border:1px solid rgba(255,255,255,.1);font-weight:800}
.memory-dot.lit{background:var(--blue);color:#fff}
.precision-track{position:absolute;z-index:2;left:8%;right:8%;top:50%;height:14px;border-radius:999px;background:var(--surface-3);box-shadow:inset 0 1px 3px rgba(0,0,0,.35)}
.precision-zone{position:absolute;top:0;height:100%;background:var(--green);border-radius:999px}
.precision-needle{position:absolute;top:-24px;width:4px;height:62px;border-radius:999px;background:#fff}
.drag-piece,.moving-target{width:72px;height:72px;border-radius:20px;background:var(--blue);color:white;font-size:2rem;box-shadow:0 12px 24px rgba(0,0,0,.28)}
.drop-zone{position:absolute;z-index:1;width:104px;height:104px;display:grid;place-items:center;border:2px dashed rgba(10,132,255,.72);border-radius:24px;background:rgba(10,132,255,.08);color:var(--blue);font-size:2.3rem}
.swipe-card{width:min(48vw,204px);height:min(48vw,204px);border-radius:34px;background:var(--surface-2);border:1px solid rgba(255,255,255,.1);font-size:4.5rem;box-shadow:0 16px 36px rgba(0,0,0,.28)}
.order-row{position:absolute;z-index:2;inset:10%;display:flex;align-items:center;justify-content:center;gap:10px;flex-wrap:wrap}
.order-item{display:grid;place-items:center;min-width:58px;min-height:58px;border:1px solid rgba(255,255,255,.09);border-radius:16px;background:var(--surface-2);font-size:1.35rem;font-weight:780}
.order-item.done{opacity:.2;transform:scale(.9)}
.color-orb{width:62px;height:62px;border-radius:50%;border:2px solid rgba(255,255,255,.28);box-shadow:0 7px 16px rgba(0,0,0,.2)}
.count-field{position:absolute;z-index:1;inset:5% 5% 34%}
.count-symbol{position:absolute;font-size:clamp(1.5rem,7vw,2.8rem)}
.bait-button{width:156px;height:68px;border-radius:17px;background:var(--red);font-weight:800;box-shadow:0 10px 22px rgba(0,0,0,.3)}
.fake-alert{position:absolute;z-index:4;padding:11px 15px;border:1px solid rgba(255,69,58,.3);border-radius:14px;background:rgba(44,44,46,.92);color:var(--red);font-size:.86rem;font-weight:750;box-shadow:0 12px 26px rgba(0,0,0,.3)}
.pair-grid{grid-template-columns:repeat(2,1fr);inset:11% 10%}
.pair-card{font-size:1.65rem}
.slider-game{position:absolute;z-index:2;left:10%;right:10%;top:28%;display:grid;gap:22px}
.slider-readout{font-size:4.5rem;font-weight:820;letter-spacing:-.05em}
.arcade-slider{width:100%;accent-color:var(--blue)}
.confirm-button{justify-self:center;min-height:50px;border:0;border-radius:14px;background:var(--blue);color:#fff;padding:13px 24px;font-weight:750}
.confirm-button:active{transform:scale(.97)}

.gameover .eyebrow{margin:0 0 14px;color:var(--red);font-size:.74rem;font-weight:780;letter-spacing:.16em}
.gameover h2{margin:0;font-size:clamp(5rem,24vw,9rem);line-height:.9;letter-spacing:-.07em;font-weight:850}
.best-line{margin:18px 0 0;color:var(--secondary);font-size:.82rem;font-weight:700;letter-spacing:.08em}
.best-line b{color:var(--text);font-size:1rem}
.verdict{min-height:48px;max-width:380px;margin:22px 0 18px;padding:0 18px;color:var(--secondary);font-size:.95rem;line-height:1.45;font-weight:550}
.cta{min-width:160px;min-height:52px;border:0;border-radius:16px;background:var(--blue);color:#fff;padding:14px 24px;font-size:1rem;font-weight:750;box-shadow:0 8px 24px rgba(10,132,255,.18)}
.cta:active{transform:scale(.97)}

#flash{position:absolute;z-index:60;inset:0;pointer-events:none;opacity:0;background:#fff}
#flash.go{animation:flash .28s}
#toast{position:absolute;z-index:45;left:50%;top:44%;transform:translate(-50%,-50%) scale(.85);opacity:0;pointer-events:none;font-size:clamp(2.2rem,11vw,4.4rem);font-weight:850}
#toast.go{animation:toast .52s}
.particle{position:absolute;z-index:40;width:7px;height:7px;border-radius:50%;pointer-events:none;animation:particle .6s ease-out forwards}
.shake{animation:shake .24s}.score-pop{animation:scorepop .35s}

@keyframes flash{25%{opacity:.42}100%{opacity:0}}
@keyframes toast{30%{opacity:1;transform:translate(-50%,-50%) scale(1.05)}75%{opacity:1}100%{opacity:0;transform:translate(-50%,-65%)}}
@keyframes particle{to{transform:translate(var(--x),var(--y)) scale(0);opacity:0}}
@keyframes shake{25%{transform:translateX(-4px)}75%{transform:translateX(4px)}}
@keyframes scorepop{50%{transform:scale(1.22);color:var(--green)}}
@keyframes arenaFlash{40%{filter:brightness(1.55)}}

@media (max-width:520px){
  .hud{gap:22px;padding-inline:16px}.arena{border-radius:24px 24px 0 0}.choice-grid{left:6%;right:6%;gap:9px}.arcade-choice{border-radius:15px}.memory-dot{width:56px;height:56px}.color-orb{width:54px;height:54px}
}
@media (min-width:850px) and (orientation:landscape){.arena{max-height:calc(100vh - 180px)}}
@media (prefers-reduced-motion:reduce){*,*::before,*::after{animation-duration:.001ms!important;animation-iteration-count:1!important;transition:none!important}}