:root{
  --bg:#0B1020;
  --bg2:#111935;
  --card:rgba(255,255,255,.05);
  --card-hi:rgba(255,255,255,.09);
  --border:rgba(255,255,255,.10);
  --txt:#F1F5FF;
  --muted:#93A0C4;
  --c1:#22D3EE;
  --c2:#8B5CF6;
  --c3:#FACC15;
  --c4:#22C55E;
  --c5:#EF4444;
  --c6:#F472B6;
  --c7:#FB923C;
  --c8:#60A5FA;
  --radius:18px;
  --font:'Cairo',system-ui,-apple-system,'Segoe UI',sans-serif;
  --mono:'Orbitron','Cairo',monospace;
}
*{box-sizing:border-box;margin:0;padding:0}
html,body{height:100%}
body{
  font-family:var(--font);
  background:var(--bg);
  color:var(--txt);
  min-height:100dvh;
  display:flex;flex-direction:column;
  overflow-x:hidden;
  -webkit-font-smoothing:antialiased;
  line-height:1.6;
}
.bg-glow{
  position:fixed;inset:0;z-index:-1;pointer-events:none;
  background:
    radial-gradient(60vw 60vw at 12% -8%, rgba(139,92,246,.30), transparent 62%),
    radial-gradient(55vw 55vw at 92% 4%, rgba(34,211,238,.22), transparent 60%),
    radial-gradient(70vw 50vw at 50% 108%, rgba(250,204,21,.10), transparent 65%);
}
.topbar{
  position:sticky;top:0;z-index:40;
  display:flex;align-items:center;justify-content:space-between;
  gap:12px;padding:12px clamp(14px,4vw,34px);
  background:rgba(11,16,32,.72);
  backdrop-filter:blur(14px);
  border-bottom:1px solid var(--border);
}
.brand{display:flex;align-items:center;gap:10px;background:none;border:0;cursor:pointer;color:inherit;font-family:inherit}
.brand-mark{
  width:40px;height:40px;display:grid;place-items:center;border-radius:12px;
  background:linear-gradient(135deg,var(--c1),var(--c2));color:#06101f;
  box-shadow:0 8px 24px rgba(34,211,238,.30);
}
.brand-mark svg{width:23px;height:23px;stroke-width:2}
.brand-text{font-weight:900;font-size:1.18rem;letter-spacing:-.2px}
.accent{color:var(--c1)}
.topbar-actions{display:flex;align-items:center;gap:10px}
.xp-pill{
  display:flex;align-items:center;gap:7px;padding:7px 13px;border-radius:999px;
  background:var(--card);border:1px solid var(--border);
  font-family:var(--mono);font-size:.82rem;color:var(--c3);
}
.xp-pill svg{width:16px;height:16px}
.icon-btn{
  width:40px;height:40px;display:grid;place-items:center;border-radius:12px;
  background:var(--card);border:1px solid var(--border);color:var(--txt);
  cursor:pointer;transition:transform .18s,background .18s,border-color .18s;
}
.icon-btn:hover{background:var(--card-hi);border-color:rgba(34,211,238,.45);transform:translateY(-2px)}
.icon-btn svg{width:19px;height:19px}

#app{flex:1;width:100%;max-width:1080px;margin:0 auto;padding:clamp(16px,3vw,30px) clamp(14px,4vw,26px) 40px}
.screen{display:none}
.screen.is-active{display:block;animation:fadeUp .45s cubic-bezier(.2,.7,.3,1) both}
@keyframes fadeUp{from{opacity:0;transform:translateY(16px)}to{opacity:1;transform:none}}

.hero{text-align:center;padding:clamp(14px,4vw,34px) 0 6px}
.tag{
  display:inline-flex;align-items:center;gap:7px;padding:6px 14px;border-radius:999px;
  background:var(--card);border:1px solid var(--border);color:var(--muted);
  font-size:.8rem;font-weight:600;margin-bottom:16px;
}
.tag svg{width:15px;height:15px;color:var(--c3)}
.hero h1{font-size:clamp(2rem,7vw,3.4rem);font-weight:900;line-height:1.15;letter-spacing:-1px}
.grad{
  background:linear-gradient(100deg,var(--c1),var(--c2) 55%,var(--c6));
  -webkit-background-clip:text;background-clip:text;color:transparent;
}
.hero p{color:var(--muted);max-width:620px;margin:14px auto 0;font-size:clamp(.95rem,2.4vw,1.06rem)}

.cards{display:grid;grid-template-columns:repeat(auto-fit,minmax(230px,1fr));gap:16px;margin:30px 0 8px}
.card{
  position:relative;overflow:hidden;text-align:right;cursor:pointer;
  background:var(--card);border:1px solid var(--border);border-radius:var(--radius);
  padding:20px 18px 18px;color:inherit;font-family:inherit;
  transition:transform .22s cubic-bezier(.2,.7,.3,1),border-color .22s,box-shadow .22s,background .22s;
}
.card:hover{transform:translateY(-4px);background:var(--card-hi);border-color:var(--hc);box-shadow:0 18px 40px -18px var(--hc)}
.card:focus-visible{outline:2px solid var(--c1);outline-offset:3px}
.card::after{content:'';position:absolute;inset:0;opacity:.14;background:radial-gradient(120px 100px at 88% 0%,var(--hc),transparent 70%)}
.card-ico{
  width:52px;height:52px;border-radius:15px;display:grid;place-items:center;margin-bottom:14px;
  background:color-mix(in srgb,var(--hc) 18%,transparent);
  border:1px solid color-mix(in srgb,var(--hc) 42%,transparent);color:var(--hc);
}
.card-ico svg{width:26px;height:26px;stroke-width:1.9}
.card h3{font-size:1.14rem;font-weight:800;margin-bottom:6px}
.card p{color:var(--muted);font-size:.87rem;min-height:2.6em}
.card-foot{display:flex;align-items:center;justify-content:space-between;margin-top:14px;padding-top:12px;border-top:1px solid var(--border)}
.card-best{font-size:.76rem;color:var(--muted)}
.card-best b{font-family:var(--mono);color:var(--c3);font-size:.92rem}
.card-go{display:inline-flex;align-items:center;gap:4px;color:var(--hc);font-weight:700;font-size:.85rem}
.card-go svg{width:16px;height:16px}

.howto{margin-top:34px;background:var(--card);border:1px solid var(--border);border-radius:var(--radius);padding:20px clamp(16px,3vw,24px)}
.howto h2{display:flex;align-items:center;gap:9px;font-size:1.05rem;font-weight:800;margin-bottom:12px}
.howto h2 svg{width:19px;height:19px;color:var(--c1)}
.howto ul{list-style:none;display:grid;gap:9px}
.howto li{position:relative;padding-right:26px;color:var(--muted);font-size:.9rem}
.howto li::before{content:'';position:absolute;right:6px;top:.6em;width:7px;height:7px;border-radius:50%;background:var(--c1)}

/* HUD */
.hud{display:flex;align-items:center;gap:12px;background:var(--card);border:1px solid var(--border);border-radius:var(--radius);padding:12px 14px}
.hud-title{display:flex;align-items:center;gap:8px;font-weight:800;font-size:1rem;flex:1}
.hud-title svg{width:18px;height:18px;color:var(--c1)}
.hud-meters{display:flex;gap:8px}
.meter{display:flex;flex-direction:column;align-items:center;min-width:66px;padding:4px 10px;border-radius:12px;background:rgba(255,255,255,.04);border:1px solid var(--border)}
.meter-label{font-size:.63rem;color:var(--muted)}
.meter-val{font-family:var(--mono);font-weight:700;font-size:.98rem;color:var(--c1)}
.bar{height:8px;border-radius:999px;background:rgba(255,255,255,.07);margin:14px 0 20px;overflow:hidden}
.bar span{display:block;height:100%;width:100%;border-radius:999px;background:linear-gradient(90deg,var(--c4),var(--c1));transition:width .25s linear,background .25s}
.bar span.warn{background:linear-gradient(90deg,var(--c3),var(--c7))}
.bar span.danger{background:linear-gradient(90deg,var(--c5),var(--c7))}

/* Stage */
.stage{min-height:min(58vh,440px);display:flex;flex-direction:column;align-items:center;justify-content:center;gap:20px;text-align:center}
.prompt{font-size:clamp(1.5rem,6vw,2.6rem);font-weight:900;line-height:1.3}
.prompt .big{font-family:var(--mono);color:var(--c3);font-size:clamp(2.2rem,11vw,4.2rem);display:block;letter-spacing:2px}
.hint{color:var(--muted);font-size:.9rem}

.options{display:grid;grid-template-columns:repeat(2,minmax(120px,1fr));gap:12px;width:min(100%,520px)}
.opt{
  font-family:var(--mono);font-weight:700;font-size:clamp(1.2rem,5vw,1.7rem);
  padding:20px 10px;border-radius:16px;cursor:pointer;
  background:var(--card);border:1px solid var(--border);color:var(--txt);
  transition:transform .16s,background .16s,border-color .16s;
}
.opt:hover:not(:disabled){transform:translateY(-3px);background:var(--card-hi);border-color:var(--c1)}
.opt:disabled{cursor:default;opacity:.55}
.opt:focus-visible{outline:2px solid var(--c1);outline-offset:2px}
.opt.good{background:color-mix(in srgb,var(--c4) 24%,transparent);border-color:var(--c4);opacity:1;color:#fff}
.opt.bad{background:color-mix(in srgb,var(--c5) 24%,transparent);border-color:var(--c5);opacity:1;color:#fff}

/* Simon grid */
.simon{display:grid;grid-template-columns:repeat(2,1fr);gap:14px;width:min(78vw,330px);aspect-ratio:1}
.sq{border-radius:20px;border:1px solid rgba(255,255,255,.14);background:rgba(255,255,255,.05);cursor:default;transition:transform .12s,box-shadow .12s,background .12s}
.sq[data-i="0"]{--col:var(--c1)}.sq[data-i="1"]{--col:var(--c2)}
.sq[data-i="2"]{--col:var(--c3)}.sq[data-i="3"]{--col:var(--c6)}
.sq.lit{background:var(--col);box-shadow:0 0 40px var(--col);transform:scale(1.05)}
.sq.armed{cursor:pointer}
.sq.armed:hover{background:rgba(255,255,255,.12)}
.sq.err{background:var(--c5)!important;box-shadow:0 0 40px var(--c5)!important}

/* Odd-one-out grid */
.odd{display:grid;gap:9px;width:min(88vw,360px);aspect-ratio:1;grid-template-columns:repeat(var(--n),1fr)}
.odd button{border-radius:12px;border:0;cursor:pointer;transition:transform .14s,box-shadow .14s}
.odd button:hover{transform:scale(1.06)}
.odd button.found{box-shadow:0 0 0 3px var(--c4);transform:scale(1.1)}
.odd button.miss{animation:shake .3s}
@keyframes shake{25%{transform:translateX(-5px)}75%{transform:translateX(5px)}}

/* word game */
.scramble{display:flex;flex-wrap:wrap;gap:9px;justify-content:center;max-width:560px}
.tile{
  font-family:var(--font);font-weight:800;font-size:1.35rem;color:var(--txt);
  min-width:48px;height:52px;padding:0 8px;border-radius:13px;cursor:pointer;
  background:var(--card);border:1px solid var(--border);transition:transform .15s,background .15s;
}
.tile:hover{transform:translateY(-3px);background:var(--card-hi)}
.tile.used{opacity:.25;pointer-events:none}
.slots{display:flex;gap:9px;justify-content:center;min-height:56px}
.slot{width:48px;height:52px;border-radius:13px;border:1.5px dashed rgba(255,255,255,.22);display:grid;place-items:center;font-weight:800;font-size:1.3rem}
.slot.filled{border-style:solid;border-color:var(--c1);background:rgba(34,211,238,.12)}

/* Buttons */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  font-family:inherit;font-weight:800;font-size:.98rem;padding:14px 24px;border-radius:14px;
  border:1px solid var(--border);cursor:pointer;transition:transform .18s,background .18s,box-shadow .18s;
}
.btn svg{width:18px;height:18px}
.btn.primary{background:linear-gradient(135deg,var(--c1),var(--c2));color:#06101f;border-color:transparent;box-shadow:0 12px 30px -12px rgba(34,211,238,.7)}
.btn.primary:hover{transform:translateY(-2px);box-shadow:0 18px 36px -12px rgba(34,211,238,.8)}
.btn.ghost{background:var(--card);color:var(--txt)}
.btn.ghost:hover{background:var(--card-hi);transform:translateY(-2px)}

/* Toast */
.toast{
  position:fixed;bottom:26px;left:50%;transform:translate(-50%,26px);
  padding:12px 22px;border-radius:999px;font-weight:800;font-size:.95rem;
  background:rgba(11,16,32,.94);border:1px solid var(--border);backdrop-filter:blur(10px);
  opacity:0;pointer-events:none;transition:opacity .25s,transform .25s;z-index:60;
}
.toast.show{opacity:1;transform:translate(-50%,0)}
.toast.good{border-color:var(--c4);color:var(--c4)}
.toast.bad{border-color:var(--c5);color:var(--c5)}

/* Countdown */
.countdown{
  position:fixed;inset:0;z-index:70;display:none;align-items:center;justify-content:center;
  background:rgba(11,16,32,.86);backdrop-filter:blur(6px);
}
.countdown.show{display:flex}
.countdown span{font-family:var(--mono);font-size:clamp(5rem,26vw,12rem);font-weight:900;color:var(--c1);animation:pop .6s ease-out}
@keyframes pop{0%{opacity:0;transform:scale(.5)}60%{opacity:1;transform:scale(1.1)}100%{opacity:1;transform:scale(1)}}

/* Result */
.result-card{
  max-width:460px;margin:clamp(20px,7vh,70px) auto 0;text-align:center;
  background:var(--card);border:1px solid var(--border);border-radius:24px;padding:34px 24px;
  animation:fadeUp .45s both;
}
.result-badge{width:78px;height:78px;border-radius:24px;display:grid;place-items:center;margin:0 auto 18px;background:color-mix(in srgb,var(--c3) 18%,transparent);border:1px solid color-mix(in srgb,var(--c3) 40%,transparent);color:var(--c3)}
.result-badge svg{width:38px;height:38px;stroke-width:1.8}
.result-card h2{font-size:1.6rem;font-weight:900}
.result-card p{color:var(--muted);margin-top:6px}
.result-stats{display:flex;justify-content:center;gap:34px;margin:26px 0}
.rs-num{display:block;font-family:var(--mono);font-size:2.1rem;font-weight:900;color:var(--c1)}
.rs-lbl{font-size:.78rem;color:var(--muted)}
.result-actions{display:flex;flex-direction:column;gap:10px}
.footer{text-align:center;color:var(--muted);font-size:.76rem;padding:18px;border-top:1px solid var(--border)}
.footer b{color:var(--c1)}

@media (max-width:420px){
  .hud{flex-wrap:wrap}
  .hud-title{order:2;flex-basis:100%;justify-content:center}
  .meter{min-width:58px}
}
@media (prefers-reduced-motion:reduce){
  *{animation-duration:.001ms!important;transition-duration:.001ms!important}
}