/* ============ Brain Champ — styles ============ */
:root{
  --bg:#0b0d1a;
  --bg2:#121530;
  --text:#f6f7fd;
  --muted:rgba(246,247,253,.62);
  --faint:rgba(246,247,253,.35);
  --card:rgba(255,255,255,.065);
  --card2:rgba(255,255,255,.1);
  --line:rgba(255,255,255,.11);
  --accent:linear-gradient(135deg,#7c5cff 0%,#ff5fa2 55%,#ffb347 100%);
  --accent2:linear-gradient(135deg,#38e6ff,#7c5cff);
  --good:#2ee6a6;
  --bad:#ff5c7a;
  --gold:#ffcf5a;
  --r:22px;
  --tabh:64px;
  --sat:env(safe-area-inset-top,0px);
  --sab:env(safe-area-inset-bottom,0px);
  --font:'Outfit',system-ui,-apple-system,'Segoe UI',Roboto,sans-serif;
}
*{box-sizing:border-box;-webkit-tap-highlight-color:transparent}
html,body{height:100%;margin:0;background:var(--bg);color:var(--text);font-family:var(--font);
  -webkit-font-smoothing:antialiased;overscroll-behavior:none}
body{overflow-x:hidden;-webkit-user-select:none;user-select:none;-webkit-touch-callout:none}
button{font:inherit;color:inherit;background:none;border:0;padding:0;cursor:pointer;touch-action:manipulation}
input{font:inherit}
svg{display:block}
.hidden{display:none!important}

/* ---- background ---- */
.bg{position:fixed;inset:0;z-index:0;overflow:hidden;background:
  radial-gradient(1200px 800px at 80% -10%,#1b1f4a 0%,transparent 60%),
  radial-gradient(900px 700px at -10% 110%,#2a1540 0%,transparent 60%),var(--bg)}
.blob{position:absolute;width:52vmax;height:52vmax;border-radius:50%;filter:blur(70px);opacity:.42;
  animation:drift 26s ease-in-out infinite alternate;will-change:transform}
.b1{background:#6a4cff;top:-18vmax;left:-12vmax}
.b2{background:#ff4f9a;bottom:-22vmax;right:-14vmax;animation-duration:31s;animation-delay:-8s}
.b3{background:#1fc8ff;top:40%;left:55%;width:34vmax;height:34vmax;opacity:.22;animation-duration:38s;animation-delay:-16s}
@keyframes drift{from{transform:translate(0,0) scale(1)}to{transform:translate(9vmax,6vmax) scale(1.15)}}
.grain{position:absolute;inset:0;opacity:.05;mix-blend-mode:overlay;
  background-image:url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' width='160' height='160'><filter id='n'><feTurbulence type='fractalNoise' baseFrequency='.9' numOctaves='2' stitchTiles='stitch'/></filter><rect width='160' height='160' filter='url(%23n)' opacity='.9'/></svg>")}

/* ---- app frame ---- */
.app{position:relative;z-index:1;max-width:540px;margin:0 auto;padding:calc(var(--sat) + 14px) 18px calc(var(--tabh) + var(--sab) + 28px);min-height:100vh}
.screen{animation:fadeup .35s ease both}
@keyframes fadeup{from{opacity:0;transform:translateY(10px)}to{opacity:1;transform:none}}

.topline{display:flex;align-items:center;justify-content:space-between;margin:6px 0 18px}
.greet{font-size:14px;color:var(--muted);font-weight:500}
.h1{font-size:30px;font-weight:800;letter-spacing:-.6px;line-height:1.05;margin:2px 0 0}
.h2{font-size:20px;font-weight:700;letter-spacing:-.3px;margin:26px 0 12px}
.h2 small{color:var(--muted);font-weight:500;font-size:14px;margin-left:8px}
.gradtext{background:var(--accent);-webkit-background-clip:text;background-clip:text;color:transparent}

.iconbtn{width:42px;height:42px;border-radius:14px;background:var(--card);border:1px solid var(--line);
  display:grid;place-items:center;color:var(--text);transition:transform .15s,background .15s}
.iconbtn:active{transform:scale(.92);background:var(--card2)}
.iconbtn svg{width:20px;height:20px}

/* ---- cards ---- */
.card{background:var(--card);border:1px solid var(--line);border-radius:var(--r);padding:18px;
  backdrop-filter:blur(18px);-webkit-backdrop-filter:blur(18px);position:relative;overflow:hidden}
.card.glow::before{content:"";position:absolute;inset:-1px;border-radius:inherit;padding:1px;
  background:var(--accent);-webkit-mask:linear-gradient(#000 0 0) content-box,linear-gradient(#000 0 0);
  -webkit-mask-composite:xor;mask-composite:exclude;opacity:.7;pointer-events:none}

/* hero */
.hero{display:flex;gap:16px;align-items:center;flex-wrap:wrap}
.hero .btn{width:100%;margin-top:2px}
.ring{position:relative;width:104px;height:104px;flex:none}
.ring svg{width:100%;height:100%;transform:rotate(-90deg)}
.ring .track{stroke:rgba(255,255,255,.1)}
.ring .fill{stroke:url(#ringGrad);stroke-linecap:round;transition:stroke-dashoffset 1s cubic-bezier(.2,.8,.2,1)}
.ring .center{position:absolute;inset:0;display:grid;place-items:center;text-align:center}
.ring .center b{font-size:26px;font-weight:800;letter-spacing:-.5px;line-height:1}
.ring .center span{font-size:11px;color:var(--muted);text-transform:uppercase;letter-spacing:.08em;margin-top:3px}
.herotext{flex:1;min-width:0}
.herotext .t{font-size:20px;font-weight:700;letter-spacing:-.3px}
.herotext .s{font-size:14px;color:var(--muted);margin:4px 0 12px;line-height:1.35}
.chips{display:flex;gap:8px;flex-wrap:wrap;margin-top:12px}
.chip{display:inline-flex;align-items:center;gap:6px;font-size:13px;font-weight:600;padding:7px 11px;border-radius:999px;
  background:rgba(255,255,255,.08);border:1px solid var(--line)}
.chip .dot{width:8px;height:8px;border-radius:50%;background:var(--gold);box-shadow:0 0 10px var(--gold)}
.chip.fire{background:linear-gradient(135deg,rgba(255,140,60,.35),rgba(255,60,120,.35))}

/* buttons */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;font-weight:700;font-size:16px;
  padding:14px 22px;border-radius:16px;color:#fff;background:var(--accent);box-shadow:0 10px 30px -10px rgba(255,95,162,.6);
  transition:transform .15s,filter .15s,opacity .2s;position:relative;overflow:hidden}
.btn::after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,rgba(255,255,255,.18),transparent 55%);pointer-events:none}
.btn:active{transform:scale(.96)}
.btn[disabled]{opacity:.4;pointer-events:none}
.btn.block{width:100%}
.btn.ghost{background:var(--card);border:1px solid var(--line);box-shadow:none;color:var(--text)}
.btn.ghost::after{display:none}
.btn.soft{background:rgba(255,255,255,.12);box-shadow:none}
.btn.big{padding:18px 26px;font-size:18px;border-radius:20px}
.btn.sm{padding:10px 14px;font-size:14px;border-radius:12px}
.btn.g{background:var(--g,var(--accent))}
.btn svg{width:20px;height:20px}

/* workout list */
.wlist{display:flex;flex-direction:column;gap:10px}
.gcard{display:flex;align-items:center;gap:14px;padding:12px 14px;border-radius:18px;background:var(--card);border:1px solid var(--line);
  transition:transform .15s,background .15s;text-align:left;width:100%}
.gcard:active{transform:scale(.985);background:var(--card2)}
.gcard .tile{width:52px;height:52px;border-radius:16px;background:var(--g);display:grid;place-items:center;flex:none;
  box-shadow:0 10px 24px -10px var(--gc,rgba(0,0,0,.6));position:relative;overflow:hidden}
.gcard .tile::after{content:"";position:absolute;inset:0;background:linear-gradient(160deg,rgba(255,255,255,.28),transparent 55%)}
.gcard .tile svg{width:28px;height:28px;position:relative;z-index:1;color:#fff}
.gcard .info{flex:1;min-width:0}
.gcard .name{font-weight:700;font-size:16px;letter-spacing:-.2px}
.gcard .meta{font-size:12.5px;color:var(--muted);margin-top:2px;display:flex;gap:8px;align-items:center}
.gcard .meta .cat{color:var(--gc2,#c9b8ff);font-weight:600}
.gcard .right{display:flex;flex-direction:column;align-items:flex-end;gap:4px;font-size:13px;color:var(--muted)}
.gcard .right b{color:var(--text);font-size:15px}
.gcard .done{width:26px;height:26px;border-radius:50%;background:var(--good);display:grid;place-items:center;color:#063}
.gcard .done svg{width:14px;height:14px}
.gcard.next{box-shadow:0 0 0 2px rgba(255,255,255,.18) inset}
.numbadge{width:22px;height:22px;border-radius:8px;background:rgba(255,255,255,.1);display:grid;place-items:center;font-size:12px;font-weight:700;color:var(--muted)}

/* train grid */
.ggrid{display:grid;grid-template-columns:1fr 1fr;gap:12px}
.gtile{border-radius:22px;padding:16px;min-height:150px;background:var(--g);position:relative;overflow:hidden;text-align:left;
  display:flex;flex-direction:column;justify-content:space-between;box-shadow:0 18px 34px -18px var(--gc,rgba(0,0,0,.7));transition:transform .15s}
.gtile:active{transform:scale(.97)}
.gtile::before{content:"";position:absolute;inset:0;background:radial-gradient(120% 90% at 100% 0%,rgba(255,255,255,.3),transparent 50%)}
.gtile::after{content:"";position:absolute;width:140px;height:140px;border-radius:50%;right:-50px;bottom:-60px;background:rgba(255,255,255,.12)}
.gtile svg{width:34px;height:34px;color:#fff;position:relative;filter:drop-shadow(0 4px 10px rgba(0,0,0,.25))}
.gtile .gname{font-weight:800;font-size:17px;letter-spacing:-.3px;position:relative;line-height:1.1;color:#fff}
.gtile .gcat{font-size:12px;opacity:.85;position:relative;margin-top:3px;color:#fff;font-weight:600}
.gtile .glvl{position:absolute;top:12px;right:12px;font-size:12px;font-weight:700;background:rgba(0,0,0,.25);padding:4px 9px;border-radius:999px;color:#fff;backdrop-filter:blur(6px)}

/* ---- stage (full screen game) ---- */
.stage{position:fixed;inset:0;z-index:50;display:flex;flex-direction:column;background:
  radial-gradient(900px 600px at 50% -20%,var(--gdim,#2a2050) 0%,transparent 60%),var(--bg);
  padding:calc(var(--sat) + 10px) 16px calc(var(--sab) + 14px);animation:stagein .3s ease both;max-width:640px;margin:0 auto;left:0;right:0}
@keyframes stagein{from{opacity:0;transform:scale(1.02)}to{opacity:1;transform:none}}
.hud{display:flex;align-items:center;gap:10px;margin-bottom:8px}
.hud .title{flex:1;min-width:0;font-weight:700;font-size:15px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.hud .title small{display:block;color:var(--muted);font-size:12px;font-weight:500}
.pill{display:inline-flex;align-items:center;gap:6px;background:var(--card);border:1px solid var(--line);border-radius:999px;padding:7px 12px;font-weight:700;font-size:14px;min-width:64px;justify-content:center;font-variant-numeric:tabular-nums}
.pill.timer.low{color:var(--bad);animation:pulse .6s ease-in-out infinite}
@keyframes pulse{50%{transform:scale(1.08)}}
.progress{height:6px;border-radius:999px;background:rgba(255,255,255,.1);overflow:hidden;margin:4px 0 10px}
.progress i{display:block;height:100%;width:0;background:var(--g,var(--accent));border-radius:999px;transition:width .4s ease}
.prompt{text-align:center;min-height:58px;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:6px;padding:4px 8px}
.prompt .big{font-size:22px;font-weight:800;letter-spacing:-.4px}
.prompt .sub{font-size:14px;color:var(--muted)}
.prompt .rule{display:inline-flex;align-items:center;gap:8px;padding:8px 16px;border-radius:999px;font-weight:800;font-size:16px;letter-spacing:.04em;text-transform:uppercase;background:var(--card2);border:1px solid var(--line)}
.prompt .rule.flash{animation:ruleflash .5s ease}
@keyframes ruleflash{0%{transform:scale(1.15);background:#fff;color:#000}100%{transform:none}}
.prompt .askshape{display:inline-grid;place-items:center;width:64px;height:64px;border-radius:18px;background:var(--card2);border:1px solid var(--line)}
.prompt .askshape svg{width:44px;height:44px}
.arena{flex:1;display:flex;align-items:center;justify-content:center;min-height:0;position:relative;flex-direction:column}
.controls{display:flex;gap:10px;justify-content:center;padding-top:10px}
.controls .btn{flex:1}

/* intro + result */
.intro{position:fixed;inset:0;z-index:60;display:flex;flex-direction:column;justify-content:flex-end;padding:0 16px calc(var(--sab) + 18px);
  background:linear-gradient(180deg,var(--gdim,#2a2050) 0%,var(--bg) 70%);animation:stagein .3s ease both;max-width:640px;margin:0 auto;left:0;right:0}
.intro .art{flex:1;display:grid;place-items:center;position:relative}
.intro .orb{width:150px;height:150px;border-radius:44px;background:var(--g);display:grid;place-items:center;
  box-shadow:0 30px 70px -20px var(--gc,rgba(0,0,0,.8));position:relative;animation:float 4s ease-in-out infinite}
.intro .orb::after{content:"";position:absolute;inset:0;border-radius:inherit;background:linear-gradient(160deg,rgba(255,255,255,.35),transparent 55%)}
.intro .orb svg{width:78px;height:78px;color:#fff;position:relative;z-index:1;filter:drop-shadow(0 6px 16px rgba(0,0,0,.3))}
@keyframes float{50%{transform:translateY(-10px)}}
.intro .cat{font-size:13px;font-weight:700;text-transform:uppercase;letter-spacing:.14em;color:var(--muted)}
.intro h1{font-size:34px;font-weight:800;letter-spacing:-.8px;margin:6px 0 6px}
.intro .tag{color:var(--muted);font-size:16px;margin-bottom:16px}
.howto{display:flex;flex-direction:column;gap:9px;margin:0 0 20px;padding:0;list-style:none}
.howto li{display:flex;gap:12px;align-items:flex-start;font-size:15px;line-height:1.4}
.howto li i{width:24px;height:24px;border-radius:8px;flex:none;display:grid;place-items:center;font-size:12px;font-weight:800;font-style:normal;background:var(--g);color:#fff}
.lvlrow{display:flex;align-items:center;justify-content:space-between;margin-bottom:14px;font-size:14px;color:var(--muted)}
.lvlrow b{color:var(--text);font-size:16px}
.lvlrow .best{text-align:right}
.closex{position:absolute;top:calc(var(--sat) + 12px);right:14px}

.result{position:fixed;inset:0;z-index:60;display:flex;flex-direction:column;align-items:center;justify-content:center;padding:20px 20px calc(var(--sab) + 20px);
  background:radial-gradient(800px 500px at 50% 0%,var(--gdim,#2a2050),transparent 60%),var(--bg);animation:stagein .3s ease both;text-align:center;max-width:640px;margin:0 auto;left:0;right:0;overflow:auto}
.result .label{font-size:13px;font-weight:700;letter-spacing:.14em;text-transform:uppercase;color:var(--muted)}
.result .score{font-size:72px;font-weight:800;letter-spacing:-3px;line-height:1;margin:6px 0 4px;background:var(--g,var(--accent));-webkit-background-clip:text;background-clip:text;color:transparent;font-variant-numeric:tabular-nums}
.result .verdict{font-size:20px;font-weight:700;margin-bottom:4px}
.result .sub{color:var(--muted);font-size:14px}
.stars{display:flex;gap:6px;justify-content:center;margin:14px 0 18px}
.stars svg{width:34px;height:34px;color:rgba(255,255,255,.14);transform:scale(.6);opacity:0}
.stars svg.on{color:var(--gold);filter:drop-shadow(0 0 12px rgba(255,207,90,.6))}
.stars svg.show{animation:starpop .45s cubic-bezier(.3,1.6,.5,1) forwards}
@keyframes starpop{to{transform:scale(1);opacity:1}}
.summary{width:100%;display:grid;grid-template-columns:1fr 1fr;gap:10px;margin-bottom:22px}
.summary .row{background:var(--card);border:1px solid var(--line);border-radius:16px;padding:12px}
.summary .row b{display:block;font-size:20px;font-weight:800;letter-spacing:-.3px}
.summary .row span{font-size:12px;color:var(--muted)}
.summary .row.full{grid-column:1/-1}
.levelchange{display:inline-flex;align-items:center;gap:8px;padding:8px 14px;border-radius:999px;font-weight:700;font-size:14px;background:var(--card2);border:1px solid var(--line);margin-bottom:16px}
.levelchange.up{background:linear-gradient(135deg,rgba(46,230,166,.3),rgba(56,230,255,.25));color:#dffff3}
.levelchange.down{color:#ffd1da}
.result .actions{display:flex;gap:10px;width:100%}
.result .actions .btn{flex:1}
.newbest{display:inline-block;font-size:12px;font-weight:800;letter-spacing:.1em;text-transform:uppercase;color:#1a1200;background:var(--gold);padding:5px 10px;border-radius:999px;margin-bottom:10px;animation:cardin .4s ease}

/* ---- shapes grid (Shape Recall) ---- */
.sgrid{display:grid;gap:8px;width:min(92vw,440px,calc(100vh - 330px));aspect-ratio:1;grid-auto-rows:1fr}
.sgrid .cell{position:relative;border-radius:18%;background:rgba(255,255,255,.07);border:1px solid rgba(255,255,255,.1);
  transition:background .2s,transform .12s,box-shadow .2s;min-height:0}
.sgrid .cell:active{transform:scale(.94)}
.sgrid .cell svg{position:absolute;inset:16%;width:68%;height:68%;filter:drop-shadow(0 6px 14px rgba(0,0,0,.35))}
.sgrid .cell .shp{transform:scale(0);opacity:0;transition:transform .32s cubic-bezier(.3,1.5,.5,1),opacity .25s}
.sgrid .cell.show .shp{transform:scale(1);opacity:1}
.sgrid .cell.hit{background:rgba(46,230,166,.22);box-shadow:0 0 0 2px var(--good) inset,0 0 24px -4px var(--good)}
.sgrid .cell.miss{background:rgba(255,92,122,.22);box-shadow:0 0 0 2px var(--bad) inset;animation:shake .4s}
.sgrid .cell.reveal{opacity:.55}
.sgrid.locked .cell{pointer-events:none}
@keyframes shake{0%,100%{transform:translateX(0)}20%,60%{transform:translateX(-6px)}40%,80%{transform:translateX(6px)}}

/* echo pads */
.pads{display:grid;grid-template-columns:repeat(3,1fr);grid-auto-rows:1fr;gap:12px;width:min(88vw,400px,calc(100vh - 330px));aspect-ratio:1}
.pads .pad{border-radius:24%;background:var(--pc);opacity:.35;transition:opacity .12s,transform .12s,box-shadow .12s;position:relative}
.pads .pad::after{content:"";position:absolute;inset:0;border-radius:inherit;background:linear-gradient(160deg,rgba(255,255,255,.35),transparent 60%)}
.pads .pad.lit{opacity:1;transform:scale(1.04);box-shadow:0 0 34px -4px var(--pc)}
.pads .pad:active{opacity:1;transform:scale(.95)}
.pads.locked .pad{pointer-events:none}
.lives{display:flex;gap:6px;justify-content:center;margin-top:12px}
.lives i{width:12px;height:12px;border-radius:50%;background:var(--bad);box-shadow:0 0 10px var(--bad);transition:all .3s}
.lives i.off{background:rgba(255,255,255,.12);box-shadow:none}

/* big card (speed match / stroop / sums) */
.bigcard{width:min(72vw,280px);aspect-ratio:1;border-radius:36px;background:rgba(255,255,255,.07);border:1px solid var(--line);display:grid;place-items:center;
  box-shadow:0 30px 60px -30px rgba(0,0,0,.8);animation:cardin .22s cubic-bezier(.2,1.4,.5,1);position:relative;z-index:1}
.bigcard svg{width:58%;height:58%;filter:drop-shadow(0 10px 24px rgba(0,0,0,.4))}
@keyframes cardin{from{transform:scale(.7) rotate(-6deg);opacity:0}}
.bigcard.good{box-shadow:0 0 0 3px var(--good) inset,0 0 50px -10px var(--good)}
.bigcard.badf{box-shadow:0 0 0 3px var(--bad) inset;animation:shake .35s}
.stroopword{font-size:clamp(44px,13vw,72px);font-weight:800;letter-spacing:-1px;text-align:center;animation:cardin .2s ease}
.colorbtns{display:grid;grid-template-columns:repeat(var(--n,4),1fr);gap:10px;width:100%}
.colorbtns button{height:64px;border-radius:18px;background:var(--c);font-weight:800;font-size:12px;color:#fff;text-shadow:0 1px 3px rgba(0,0,0,.4);
  box-shadow:0 10px 24px -12px var(--c);transition:transform .1s;position:relative;overflow:hidden;letter-spacing:.04em}
.colorbtns button::after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,rgba(255,255,255,.3),transparent 60%);pointer-events:none}
.colorbtns button:active{transform:scale(.93)}
.mathq{font-size:clamp(40px,12vw,64px);font-weight:800;letter-spacing:-1px;text-align:center;font-variant-numeric:tabular-nums;animation:cardin .2s ease}
.choices{display:grid;grid-template-columns:repeat(3,1fr);gap:10px;width:100%}
.choices button{height:70px;border-radius:18px;background:var(--card2);border:1px solid var(--line);font-size:26px;font-weight:800;transition:transform .1s,background .15s;font-variant-numeric:tabular-nums}
.choices button:active{transform:scale(.94)}
.choices button.good{background:rgba(46,230,166,.3);box-shadow:0 0 0 2px var(--good) inset}
.choices button.badf{background:rgba(255,92,122,.3);animation:shake .35s}
.streakbar{display:flex;gap:4px;justify-content:center;margin-top:10px;height:8px}
.streakbar i{width:18px;height:8px;border-radius:4px;background:rgba(255,255,255,.12)}
.streakbar i.on{background:var(--gold);box-shadow:0 0 10px var(--gold)}
.feedback{position:absolute;top:4%;left:50%;transform:translateX(-50%);font-weight:800;font-size:22px;pointer-events:none;opacity:0;animation:fb .7s ease forwards;z-index:3}
.feedback.good{color:var(--good)}.feedback.bad{color:var(--bad)}
@keyframes fb{0%{opacity:0;transform:translate(-50%,10px) scale(.8)}25%{opacity:1;transform:translate(-50%,0) scale(1.1)}100%{opacity:0;transform:translate(-50%,-26px)}}
.matchbtns{display:grid;grid-template-columns:1fr 1fr;gap:12px;width:100%}
.matchbtns button{height:76px;border-radius:22px;font-size:18px;font-weight:800;color:#fff;transition:transform .1s;position:relative;overflow:hidden;display:flex;align-items:center;justify-content:center;gap:8px}
.matchbtns button::after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,rgba(255,255,255,.22),transparent 60%);pointer-events:none}
.matchbtns button:active{transform:scale(.95)}
.matchbtns .yes{background:linear-gradient(135deg,#19d3a2,#0ea5e9)}
.matchbtns .no{background:linear-gradient(135deg,#ff5c7a,#ff8a3d)}
.matchbtns button svg{width:22px;height:22px}

/* number vault */
.digitshow{font-size:clamp(90px,30vw,150px);font-weight:800;letter-spacing:-4px;line-height:1;animation:digit .55s ease;background:var(--g);-webkit-background-clip:text;background-clip:text;color:transparent}
@keyframes digit{0%{transform:scale(.6);opacity:0}30%{transform:scale(1.05);opacity:1}}
.entry{display:flex;gap:8px;justify-content:center;flex-wrap:wrap;margin-bottom:16px;min-height:54px}
.entry i{width:42px;height:54px;border-radius:14px;background:var(--card);border:1px solid var(--line);display:grid;place-items:center;font-size:26px;font-weight:800;font-style:normal;font-variant-numeric:tabular-nums}
.entry i.cur{border-color:rgba(255,255,255,.5)}
.entry i.ok{background:rgba(46,230,166,.25);border-color:var(--good)}
.entry i.ko{background:rgba(255,92,122,.25);border-color:var(--bad)}
.keypad{display:grid;grid-template-columns:repeat(3,1fr);gap:10px;width:min(90vw,340px)}
.keypad button{height:58px;border-radius:18px;background:var(--card2);border:1px solid var(--line);font-size:26px;font-weight:700;transition:transform .1s}
.keypad button:active{transform:scale(.93);background:rgba(255,255,255,.2)}
.keypad button.fn{font-size:18px;color:var(--muted)}

/* odd one out */
.ogrid{display:grid;gap:8px;width:min(92vw,440px,calc(100vh - 330px));aspect-ratio:1;grid-auto-rows:1fr}
.ogrid .oc{border-radius:18%;background:rgba(255,255,255,.06);position:relative;transition:transform .1s;min-height:0}
.ogrid .oc:active{transform:scale(.93)}
.ogrid .oc svg{position:absolute;inset:14%;width:72%;height:72%}
.ogrid .oc.badf{background:rgba(255,92,122,.25);animation:shake .35s}
.ogrid .oc.good{background:rgba(46,230,166,.3)}

/* word scramble */
.slots{display:flex;gap:8px;justify-content:center;flex-wrap:wrap;min-height:60px;margin-bottom:22px}
.slots i,.tiles button{width:48px;height:56px;border-radius:14px;display:grid;place-items:center;font-size:26px;font-weight:800;font-style:normal;text-transform:uppercase}
.slots i{background:rgba(255,255,255,.05);border:1.5px dashed rgba(255,255,255,.25)}
.slots i.filled{background:var(--g);border:0;color:#fff;animation:cardin .18s ease}
.slots.good i{box-shadow:0 0 0 2px var(--good) inset}
.slots.badf{animation:shake .35s}
.tiles{display:flex;gap:8px;justify-content:center;flex-wrap:wrap}
.tiles button{background:var(--card2);border:1px solid var(--line);transition:transform .1s,opacity .2s}
.tiles button:active{transform:scale(.92)}
.tiles button.used{opacity:.18;pointer-events:none}
.wordtools{display:flex;gap:10px;justify-content:center;margin-top:18px}
.wordhint{color:var(--muted);font-size:14px;min-height:20px;margin-top:10px;text-align:center}

/* ---- vocab ---- */
.flash{width:100%;max-width:420px;perspective:1200px}
.flash .inner{position:relative;transform-style:preserve-3d;transition:transform .6s cubic-bezier(.3,.9,.3,1);min-height:320px}
.flash.flipped .inner{transform:rotateY(180deg)}
.face{position:absolute;inset:0;border-radius:28px;padding:24px;display:flex;flex-direction:column;justify-content:center;backface-visibility:hidden;-webkit-backface-visibility:hidden;
  background:var(--card);border:1px solid var(--line)}
.face.front{background:var(--g);box-shadow:0 30px 60px -24px var(--gc,rgba(0,0,0,.8))}
.face.front::after{content:"";position:absolute;inset:0;border-radius:inherit;background:radial-gradient(120% 90% at 100% 0%,rgba(255,255,255,.28),transparent 50%);pointer-events:none}
.face.back{transform:rotateY(180deg);background:#171a33}
.face .word{font-size:clamp(34px,10vw,46px);font-weight:800;letter-spacing:-1px;color:#fff;position:relative}
.face .pron{font-size:16px;opacity:.85;color:#fff;margin-top:4px;position:relative}
.face .pos{display:inline-block;font-size:12px;font-weight:700;letter-spacing:.12em;text-transform:uppercase;padding:5px 10px;border-radius:999px;background:rgba(255,255,255,.12);color:var(--text);margin-bottom:14px;align-self:flex-start;position:relative}
.face .def{font-size:19px;font-weight:600;line-height:1.35}
.face .ex{font-size:15px;color:var(--muted);margin-top:12px;line-height:1.45;font-style:italic}
.face .ex b{color:var(--text);font-style:normal}
.face .taphint{position:absolute;bottom:14px;left:0;right:0;text-align:center;font-size:12px;color:rgba(255,255,255,.7);letter-spacing:.08em;text-transform:uppercase}
.dots{display:flex;gap:6px;justify-content:center;margin:16px 0}
.dots i{width:8px;height:8px;border-radius:50%;background:rgba(255,255,255,.18);transition:all .25s}
.dots i.on{background:#fff;width:22px;border-radius:4px}
.question{font-size:clamp(18px,5.5vw,24px);font-weight:700;line-height:1.3;text-align:center;margin-bottom:14px;padding:0 6px}
.question .w{font-size:clamp(34px,10vw,44px);font-weight:800;letter-spacing:-.8px;display:block;margin-bottom:4px;background:var(--g);-webkit-background-clip:text;background-clip:text;color:transparent}
.question .blank{display:inline-block;min-width:80px;border-bottom:3px solid rgba(255,255,255,.5);margin:0 4px}
.question .qtype{display:block;font-size:12px;font-weight:700;letter-spacing:.12em;text-transform:uppercase;color:var(--muted);margin-bottom:8px}
.options{display:flex;flex-direction:column;gap:10px;width:100%}
.options button{padding:14px 16px;border-radius:16px;background:var(--card2);border:1px solid var(--line);font-size:15.5px;font-weight:600;text-align:left;line-height:1.3;transition:transform .1s,background .15s}
.options button:active{transform:scale(.98)}
.options button.good{background:rgba(46,230,166,.3);border-color:var(--good)}
.options button.badf{background:rgba(255,92,122,.3);border-color:var(--bad);animation:shake .35s}
.options button.dim{opacity:.45}
.wordlist{display:flex;flex-direction:column;gap:8px}
.wrow{display:flex;align-items:center;gap:12px;padding:13px 14px;border-radius:16px;background:var(--card);border:1px solid var(--line);text-align:left;width:100%}
.wrow .txt{flex:1;min-width:0}
.wrow .w{font-weight:700;font-size:16px}
.wrow .d{font-size:13px;color:var(--muted);margin-top:2px;line-height:1.3;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.wrow.open .d{white-space:normal;color:var(--text)}
.wrow .e{font-size:13px;color:var(--muted);margin-top:6px;font-style:italic;line-height:1.4}
.wrow .mast{display:flex;gap:3px;flex:none}
.wrow .mast i{width:6px;height:14px;border-radius:3px;background:rgba(255,255,255,.14)}
.wrow .mast i.on{background:var(--good)}
.search{width:100%;padding:13px 16px;border-radius:16px;background:var(--card);border:1px solid var(--line);color:var(--text);outline:none;font-size:15px;margin-bottom:12px;-webkit-user-select:text;user-select:text}
.search::placeholder{color:var(--faint)}
.vocabhero{display:flex;gap:10px;flex-wrap:wrap}
.statbox{flex:1;min-width:90px;background:var(--card);border:1px solid var(--line);border-radius:16px;padding:12px 14px}
.statbox b{display:block;font-size:24px;font-weight:800;letter-spacing:-.5px}
.statbox span{font-size:12px;color:var(--muted)}
.wordcards{display:grid;grid-template-columns:1fr;gap:10px}
.wc{padding:16px 18px;border-radius:20px;background:var(--g);position:relative;overflow:hidden;color:#fff;text-align:left;width:100%}
.wc::after{content:"";position:absolute;inset:0;background:radial-gradient(120% 90% at 100% 0%,rgba(255,255,255,.25),transparent 50%);pointer-events:none}
.wc .w{font-size:24px;font-weight:800;letter-spacing:-.5px}
.wc .p{font-size:13px;opacity:.85;margin-bottom:6px}
.wc .d{font-size:15px;line-height:1.35;font-weight:500}
.wc .e{font-size:13px;opacity:.85;margin-top:8px;font-style:italic}

/* ---- stats ---- */
.bpi{display:flex;align-items:center;gap:14px;flex-wrap:wrap}
.radarwrap{flex:1 1 210px;min-width:0}
.bpi .num{font-size:64px;font-weight:800;letter-spacing:-3px;line-height:1;background:var(--accent);-webkit-background-clip:text;background-clip:text;color:transparent}
.bpi .lbl{font-size:13px;color:var(--muted);text-transform:uppercase;letter-spacing:.1em;font-weight:700}
.bpi .delta{font-size:14px;font-weight:700;margin-top:6px}
.bpi .delta.up{color:var(--good)}.bpi .delta.down{color:var(--bad)}
.radar{width:100%;max-width:280px;margin:0 auto;display:block}
.cats{display:flex;flex-direction:column;gap:10px}
.catrow{display:flex;align-items:center;gap:12px}
.catrow .ic{width:34px;height:34px;border-radius:11px;background:var(--g);display:grid;place-items:center;flex:none}
.catrow .ic svg{width:18px;height:18px;color:#fff}
.catrow .nm{flex:0 0 92px;font-weight:600;font-size:14px}
.catrow .bar{flex:1;height:10px;border-radius:999px;background:rgba(255,255,255,.1);overflow:hidden}
.catrow .bar i{display:block;height:100%;border-radius:999px;background:var(--g);width:0;transition:width .9s cubic-bezier(.2,.8,.2,1)}
.catrow .v{width:40px;text-align:right;font-weight:700;font-variant-numeric:tabular-nums;font-size:14px}
.bars{display:flex;align-items:flex-end;gap:5px;height:120px;padding-top:10px}
.bars .b{flex:1;display:flex;flex-direction:column;align-items:center;gap:6px;height:100%;justify-content:flex-end}
.bars .b i{display:block;width:100%;border-radius:6px 6px 3px 3px;background:var(--accent);min-height:3px;opacity:.9;transition:height .8s cubic-bezier(.2,.8,.2,1)}
.bars .b i.empty{background:rgba(255,255,255,.1)}
.bars .b span{font-size:10px;color:var(--muted)}
.bars .b.today i{box-shadow:0 0 16px rgba(255,95,162,.6)}
.bestlist{display:flex;flex-direction:column;gap:8px}
.bestrow{display:flex;align-items:center;gap:12px;padding:10px 12px;border-radius:14px;background:var(--card);border:1px solid var(--line)}
.bestrow .ic{width:34px;height:34px;border-radius:11px;background:var(--g);display:grid;place-items:center}
.bestrow .ic svg{width:18px;height:18px;color:#fff}
.bestrow .n{flex:1;font-weight:600;font-size:14px}
.bestrow .n small{display:block;color:var(--muted);font-weight:500;font-size:12px}
.bestrow b{font-size:16px;font-variant-numeric:tabular-nums}
.heat{display:grid;grid-template-columns:repeat(7,1fr);gap:5px}
.heat i{aspect-ratio:1;border-radius:6px;background:rgba(255,255,255,.08)}
.heat i.l1{background:rgba(124,92,255,.45)}.heat i.l2{background:rgba(255,95,162,.75)}.heat i.l3{background:#ffb347}
.heat i.today{box-shadow:0 0 0 2px rgba(255,255,255,.6) inset}
.heatlabels{display:grid;grid-template-columns:repeat(7,1fr);gap:5px;margin-bottom:6px}
.heatlabels span{font-size:10px;text-align:center;color:var(--faint)}

/* ---- settings / misc ---- */
.setrow{display:flex;align-items:center;justify-content:space-between;padding:14px 0;border-bottom:1px solid var(--line);gap:12px}
.setrow:last-child{border-bottom:0}
.setrow .l{font-weight:600}
.setrow .l small{display:block;color:var(--muted);font-weight:400;font-size:12.5px;margin-top:2px}
.switch{width:52px;height:30px;border-radius:999px;background:rgba(255,255,255,.14);position:relative;transition:background .2s;flex:none}
.switch::after{content:"";position:absolute;top:3px;left:3px;width:24px;height:24px;border-radius:50%;background:#fff;transition:transform .2s}
.switch.on{background:#7c5cff}
.switch.on::after{transform:translateX(22px)}
.textbtn{color:var(--bad);font-weight:600}
.installbox{background:var(--card);border:1px solid var(--line);border-radius:18px;padding:14px 16px;font-size:14px;color:var(--muted);line-height:1.45}
.installbox b{color:var(--text)}
.nameinput{padding:10px 14px;border-radius:12px;background:var(--card2);border:1px solid var(--line);color:var(--text);outline:none;width:150px;-webkit-user-select:text;user-select:text}

/* profiles */
.profilechip{display:inline-flex;align-items:center;gap:8px;padding:5px 12px 5px 5px;border-radius:999px;background:var(--card);border:1px solid var(--line);font-weight:700;font-size:13px;max-width:150px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis;transition:transform .15s}
.profilechip:active{transform:scale(.95)}
.avatar{width:30px;height:30px;border-radius:50%;display:inline-grid;place-items:center;font-weight:800;font-size:14px;color:#fff;flex:none;box-shadow:0 4px 12px -4px rgba(0,0,0,.6)}
.avatar.big{width:46px;height:46px;font-size:20px;border-radius:16px}
.plist{display:flex;flex-direction:column;gap:8px}
.prow{display:flex;align-items:center;gap:12px;padding:12px 14px;border-radius:18px;background:var(--card);border:1px solid var(--line);text-align:left;width:100%;transition:transform .15s}
.prow:active{transform:scale(.985)}
.prow.active{box-shadow:0 0 0 2px rgba(255,255,255,.22) inset}
.prow .ptxt{flex:1;min-width:0}
.prow .ptxt b{display:block;font-size:16px}
.prow .ptxt small{display:block;color:var(--muted);font-size:12px;margin-top:2px;line-height:1.3}
.prow .done{width:26px;height:26px;border-radius:50%;background:var(--good);display:grid;place-items:center;color:#063;flex:none}
.prow .done svg{width:14px;height:14px}
.addrow{display:flex;gap:8px;margin-top:12px}
.addrow .nameinput{flex:1;width:auto}
.pads.big{gap:9px}

/* per-item time limit bar */
.itembar{width:140px;height:5px;border-radius:3px;background:rgba(255,255,255,.12);margin:12px auto 0;overflow:hidden}
.itembar i{display:block;height:100%;background:linear-gradient(90deg,#ffb347,#ff5c7a);animation:shrink linear forwards}
@keyframes shrink{from{width:100%}to{width:0}}

/* profile picker (landing) */
.picker{position:fixed;inset:0;z-index:45;overflow:auto;padding:calc(var(--sat) + 28px) 18px calc(var(--sab) + 28px);animation:fadeup .4s ease both}
.pickerin{max-width:540px;margin:0 auto}
body.picking .tabbar{display:none}
.brand{display:flex;align-items:center;gap:14px}
.brand img{border-radius:18px;box-shadow:0 14px 30px -12px rgba(255,95,162,.7)}
.brandname{font-size:30px;font-weight:800;letter-spacing:-.8px;line-height:1}
.brandsub{color:var(--muted);font-size:14px;margin-top:4px}
.pgrid{display:grid;grid-template-columns:1fr 1fr;gap:12px}
.pcard{position:relative;display:flex;flex-direction:column;align-items:center;text-align:center;gap:6px;padding:22px 12px 16px;border-radius:24px;background:var(--card);border:1px solid var(--line);
  backdrop-filter:blur(18px);-webkit-backdrop-filter:blur(18px);transition:transform .15s,background .15s;overflow:hidden}
.pcard::before{content:"";position:absolute;inset:0;background:var(--g);opacity:.12;pointer-events:none}
.pcard:active{transform:scale(.96);background:var(--card2)}
.avatar.xl{width:72px;height:72px;border-radius:24px;font-size:32px;margin-bottom:6px;box-shadow:0 16px 30px -12px rgba(0,0,0,.8)}
.pcard .pname{font-size:20px;font-weight:800;letter-spacing:-.4px;position:relative}
.pcard .pstats{display:flex;flex-direction:column;gap:3px;font-size:12.5px;color:var(--muted);font-weight:600;position:relative}
.pcard .pstats span{display:inline-flex;align-items:center;justify-content:center;gap:4px}
.pcard .pstats svg{color:#ffb347}
.pcard .pfoot{margin-top:6px;font-size:11px;color:var(--faint);letter-spacing:.04em;position:relative}
.pcard .pdel{position:absolute;top:8px;right:8px;width:26px;height:26px;border-radius:50%;background:rgba(255,255,255,.08);display:grid;place-items:center;color:var(--faint)}
.pcard .pdel svg{width:13px;height:13px}
@media (max-width:360px){.pgrid{grid-template-columns:1fr}}

/* pause overlay */
.pauseov{position:fixed;inset:0;z-index:65;background:rgba(5,6,14,.78);backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);display:grid;place-items:center;padding:24px;animation:fadein .2s}
.pausecard{width:100%;max-width:360px;background:#151830;border:1px solid var(--line);border-radius:28px;padding:26px 22px;text-align:center;animation:cardin .3s ease}
.pausecard .label{font-size:12px;font-weight:800;letter-spacing:.14em;text-transform:uppercase;color:var(--muted)}
.pausecard .big{font-size:28px;font-weight:800;letter-spacing:-.5px;margin:6px 0 8px}
.pausecard .sub{color:var(--muted);font-size:14px;line-height:1.45;margin-bottom:18px}

/* tab bar */
.tabbar{position:fixed;left:0;right:0;bottom:0;z-index:40;display:flex;justify-content:space-around;max-width:540px;margin:0 auto;
  padding:8px 10px calc(var(--sab) + 8px);background:rgba(11,13,26,.72);backdrop-filter:blur(22px);-webkit-backdrop-filter:blur(22px);border-top:1px solid var(--line)}
.tab{display:flex;flex-direction:column;align-items:center;gap:3px;font-size:11px;font-weight:600;color:var(--faint);padding:4px 14px;border-radius:14px;transition:color .2s;min-width:64px}
.tab .tabicon{width:40px;height:30px;display:grid;place-items:center;border-radius:12px;transition:background .2s}
.tab .tabicon svg{width:22px;height:22px}
.tab.active{color:var(--text)}
.tab.active .tabicon{background:var(--accent)}
.tab.active .tabicon svg{color:#fff}
body.ingame .tabbar{display:none}

/* overlay/sheets */
.overlay{position:fixed;inset:0;z-index:70;background:rgba(5,6,14,.6);backdrop-filter:blur(8px);display:flex;align-items:flex-end;justify-content:center;animation:fadein .2s}
@keyframes fadein{from{opacity:0}}
.sheet{width:100%;max-width:540px;background:#151830;border-radius:28px 28px 0 0;padding:14px 20px calc(var(--sab) + 24px);border:1px solid var(--line);animation:up .3s cubic-bezier(.2,.9,.3,1);max-height:88vh;overflow:auto}
@keyframes up{from{transform:translateY(40px);opacity:0}}
.sheet .grab{width:44px;height:5px;border-radius:3px;background:rgba(255,255,255,.2);margin:0 auto 14px}
.sheet h3{margin:0 0 14px;font-size:20px;font-weight:800;letter-spacing:-.4px}
.toast{position:fixed;left:50%;bottom:calc(var(--tabh) + var(--sab) + 18px);transform:translate(-50%,20px);z-index:90;background:#fff;color:#111;font-weight:700;font-size:14px;padding:11px 18px;border-radius:999px;opacity:0;pointer-events:none;transition:all .3s;box-shadow:0 10px 30px rgba(0,0,0,.4);white-space:nowrap}
.toast.show{opacity:1;transform:translate(-50%,0)}
.confetti{position:fixed;inset:0;z-index:80;pointer-events:none}

.countdown{font-size:120px;font-weight:800;letter-spacing:-4px;animation:digit .5s ease;background:var(--g,var(--accent));-webkit-background-clip:text;background-clip:text;color:transparent}
.toastlvl{position:absolute;top:50%;left:50%;transform:translate(-50%,-50%);z-index:5;padding:14px 24px;border-radius:20px;background:rgba(10,12,24,.88);border:1px solid var(--line);font-weight:800;font-size:22px;animation:lvlpop 1s ease forwards;pointer-events:none;text-align:center;backdrop-filter:blur(10px);white-space:nowrap}
.toastlvl small{display:block;font-size:13px;color:var(--muted);font-weight:600;margin-top:2px}
@keyframes lvlpop{0%{opacity:0;transform:translate(-50%,-50%) scale(.7)}20%{opacity:1;transform:translate(-50%,-50%) scale(1.05)}80%{opacity:1}100%{opacity:0;transform:translate(-50%,-60%) scale(1)}}
.emptystate{text-align:center;color:var(--muted);padding:30px 10px;font-size:14px;line-height:1.5}
.dayslist{display:flex;gap:8px;overflow-x:auto;padding:4px 2px 10px;scrollbar-width:none}
.dayslist::-webkit-scrollbar{display:none}
.daypill{flex:1 0 42px;padding:8px 0;border-radius:14px;background:var(--card);border:1px solid var(--line);text-align:center;font-size:11px;color:var(--muted)}
.daypill b{display:block;font-size:16px;color:var(--text);margin-top:2px}
.daypill.done{background:linear-gradient(135deg,rgba(124,92,255,.55),rgba(255,95,162,.55));border-color:transparent;color:#fff}
.daypill.today{box-shadow:0 0 0 2px rgba(255,255,255,.5) inset}
.sectionhdr{display:flex;align-items:center;justify-content:space-between;margin:26px 0 12px}
.sectionhdr .h2{margin:0}
.link{color:#c9b8ff;font-weight:600;font-size:14px}
.finalwrap{display:flex;flex-direction:column;align-items:center;gap:10px;width:100%}
.finallist{width:100%;display:flex;flex-direction:column;gap:8px;margin:10px 0 18px;text-align:left}
.finallist .fr{display:flex;align-items:center;gap:12px;padding:10px 12px;border-radius:14px;background:var(--card);border:1px solid var(--line)}
.finallist .fr .ic{width:30px;height:30px;border-radius:10px;background:var(--g);display:grid;place-items:center}
.finallist .fr .ic svg{width:16px;height:16px;color:#fff}
.finallist .fr .n{flex:1;font-weight:600;font-size:14px}
.finallist .fr b{font-variant-numeric:tabular-nums}
@media (min-width:700px){.app{padding-top:30px}}
@media (prefers-reduced-motion:reduce){*{animation-duration:.01ms!important;transition-duration:.01ms!important}}