:root{--bg:#000;--card:#1C1C1E;--card2:#242426;--card3:#2C2C2E;--track:#2C2C2E;--line:#2C2C2E;--tx:#F5F5F7;--tx2:#D1D1D6;--mu:#A1A1A6;--mu2:#8E8E93;--gr:#32D74B;--rd:#FF453A;--rd2:#FF6961;--am:#FFD60A;--bl:#6CB4FF;--ease:cubic-bezier(.2,.8,.2,1);--spring:cubic-bezier(.34,1.56,.64,1)}
*{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{margin:0;background:var(--bg);color:var(--tx);font:16px/1.45 'Inter Tight',system-ui,sans-serif;font-feature-settings:'tnum' 1;-webkit-font-smoothing:antialiased;overflow-x:hidden}
body.noscroll{overflow:hidden}
button{font:inherit;color:inherit;cursor:pointer;-webkit-tap-highlight-color:transparent;touch-action:manipulation}
button:focus-visible,input:focus-visible,textarea:focus-visible,summary:focus-visible,.toggle:focus-within{outline:2px solid var(--bl);outline-offset:2px}
.sr{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0)}
.muted{color:var(--mu)}.center{text-align:center}
.wrap{max-width:1120px;margin:0 auto;padding:32px 16px 64px;padding-top:max(32px,env(safe-area-inset-top))}
header{display:flex;flex-direction:column;gap:20px;padding:0 4px 20px;animation:rise .5s var(--ease) both}
header .sub{font-size:15px;font-weight:500;color:var(--mu);margin-bottom:-18px}
h1{margin:0;font-size:40px;font-weight:700;letter-spacing:-.03em}

/* nav with sliding pill */
#Nav{position:relative;display:flex;gap:4px;overflow-x:auto;padding:4px;background:var(--card);border-radius:999px;align-self:flex-start;max-width:100%;scrollbar-width:none}
#Nav::-webkit-scrollbar{display:none}
.nav-ind{position:absolute;top:4px;left:4px;height:calc(100% - 8px);border-radius:999px;background:var(--tx);transition:transform .4s var(--spring),width .4s var(--spring);z-index:0}
#Nav button{position:relative;z-index:1;flex:0 0 auto;border:0;background:none;color:var(--mu);font-size:14px;font-weight:600;padding:10px 16px;border-radius:999px;display:flex;align-items:center;gap:6px;transition:color .3s var(--ease),transform .15s var(--ease);overflow:hidden}
#Nav button:hover{color:var(--tx)}
#Nav button:active{transform:scale(.94)}
#Nav button.on{color:#000}
.badge{min-width:18px;height:18px;padding:0 5px;border-radius:9px;background:var(--am);color:#000;font-size:11px;font-weight:700;display:inline-flex;align-items:center;justify-content:center;animation:badgePop .5s var(--spring) both}
.badge[hidden]{display:none}
@keyframes badgePop{from{transform:scale(0)}to{transform:scale(1)}}

/* page transitions + reveal */
@keyframes rise{from{opacity:0;transform:translateY(14px)}to{opacity:1;transform:none}}
@keyframes flyUp{from{opacity:0;transform:translateY(28px) scale(.98)}to{opacity:1;transform:none}}
main.slide-r{animation:slideR .38s var(--ease) both}
main.slide-l{animation:slideL .38s var(--ease) both}
@keyframes slideR{from{opacity:0;transform:translateX(36px)}to{opacity:1;transform:none}}
@keyframes slideL{from{opacity:0;transform:translateX(-36px)}to{opacity:1;transform:none}}
.reveal{opacity:0}
.reveal.seen{animation:flyUp .55s var(--ease) both;animation-delay:var(--d,0ms)}

/* ripple */
.ripple{position:absolute;border-radius:50%;background:currentColor;opacity:.18;transform:scale(0);animation:ripple .6s var(--ease) forwards;pointer-events:none}
@keyframes ripple{to{transform:scale(1);opacity:0}}

/* widgets */
.flex{display:flex;flex-wrap:wrap;gap:16px;margin-bottom:16px}
.w{position:relative;background:var(--card);border-radius:24px;padding:24px 28px;display:flex;flex-direction:column;gap:10px;flex:1 1 240px;min-width:0;transition:transform .3s var(--ease),background .3s,box-shadow .3s}
.w:hover{transform:translateY(-3px);box-shadow:0 12px 30px rgba(0,0,0,.5)}
.w.big{flex:2 1 520px;gap:18px;overflow:hidden}
.w.big::after{content:"";position:absolute;inset:-40% -20% auto auto;width:280px;height:280px;border-radius:50%;background:radial-gradient(circle,rgba(108,180,255,.10),transparent 70%);pointer-events:none;animation:float 8s ease-in-out infinite}
@keyframes float{0%,100%{transform:translate(0,0)}50%{transform:translate(-30px,20px)}}
.w.click{cursor:pointer;overflow:hidden}
.w.click:hover{background:var(--card2)}
.w.click:active{transform:scale(.98)}
.w .lab{font-size:15px;font-weight:600;color:var(--mu);display:flex;justify-content:space-between;align-items:center;gap:10px}
.w .lab.start{justify-content:flex-start}
.w .num{font-size:64px;font-weight:700;letter-spacing:-.04em;line-height:1}
.w .cap{font-size:15px;color:var(--mu);line-height:1.45}
.w .lead,.lead{margin:0;font-size:26px;line-height:1.3;font-weight:600;letter-spacing:-.02em;position:relative;z-index:1}
.w.empty{align-items:flex-start}
.dot{width:10px;height:10px;border-radius:5px;display:inline-block;background:var(--mu2);flex:0 0 auto}
.dot.g{background:var(--gr)}.dot.r{background:var(--rd)}.dot.y{background:var(--am);animation:pulse 2s ease-in-out infinite}.dot.b{background:var(--bl);animation:pulse 2s ease-in-out infinite}
@keyframes pulse{0%,100%{box-shadow:0 0 0 0 currentColor;opacity:1}50%{opacity:.55}}
.track{height:8px;border-radius:4px;background:var(--track);overflow:hidden;position:relative}
.track i{display:block;height:100%;border-radius:4px;background:var(--tx);transition:width .6s var(--spring);position:relative;overflow:hidden}
.track i::after{content:"";position:absolute;inset:0;background:linear-gradient(90deg,transparent,rgba(255,255,255,.35),transparent);transform:translateX(-100%);animation:shimmer 2.4s ease-in-out infinite}
@keyframes shimmer{60%,100%{transform:translateX(100%)}}
.track.g i{background:var(--gr)}

/* buttons */
.btn-row{display:flex;flex-wrap:wrap;gap:10px;position:relative;z-index:1}
.btn-row.pad{padding:8px 0 24px}
.btn{position:relative;overflow:hidden;border:0;border-radius:999px;padding:14px 24px;font-weight:600;background:var(--tx);color:#000;font-size:16px;transition:transform .2s var(--spring),box-shadow .25s var(--ease),background .2s,filter .2s;min-height:48px}
.btn:hover{transform:translateY(-2px);box-shadow:0 8px 22px rgba(245,245,247,.16)}
.btn:active{transform:scale(.95);transition-duration:.08s;box-shadow:none}
.btn:disabled{background:var(--track);color:#7C7C80;cursor:not-allowed;transform:none;box-shadow:none}
.btn.wake{animation:wake .5s var(--spring)}
@keyframes wake{0%{transform:scale(.96)}60%{transform:scale(1.03)}100%{transform:scale(1)}}
.btn.sm{padding:9px 16px;font-size:14px;min-height:40px}
.btn.ghost{background:var(--track);color:var(--tx)}
.btn.ghost:hover{background:#3A3A3C;box-shadow:none}
.btn.danger{background:rgba(255,69,58,.18);color:var(--rd2)}
.btn.danger:hover{background:rgba(255,69,58,.28);box-shadow:none}
.tag{display:inline-flex;align-items:center;padding:3px 10px;border-radius:999px;font-size:12px;font-weight:600;background:var(--track);color:var(--mu)}
.tag.g{background:rgba(50,215,75,.16);color:var(--gr)}.tag.r{background:rgba(255,69,58,.16);color:var(--rd2)}.tag.b{background:rgba(108,180,255,.16);color:var(--bl)}
.stars{display:inline-flex;gap:2px;color:#48484A}.stars .on{color:var(--am)}
.stars span{display:flex;transition:transform .3s var(--spring)}
.row:hover .stars .on{transform:rotate(-12deg) scale(1.15)}
.row:hover .stars .on:nth-child(2){transition-delay:.04s}.row:hover .stars .on:nth-child(3){transition-delay:.08s}

/* units */
.unit{background:var(--card);border-radius:24px;padding:24px 28px 8px;margin-bottom:16px;--u:var(--bl)}
.unit .uh{display:flex;justify-content:space-between;align-items:flex-end;gap:16px;padding-bottom:12px}
.unit h2{margin:2px 0;font-size:22px;font-weight:600;letter-spacing:-.01em}
.unit .us{font-size:14px;color:var(--mu)}
.u-prog{display:flex;flex-direction:column;align-items:flex-end;gap:6px;font-size:13px;color:var(--mu);min-width:90px}
.u-prog .track{width:90px;height:6px}
.row{position:relative;overflow:hidden;display:flex;align-items:center;gap:16px;padding:16px 10px;margin:0 -10px;width:calc(100% + 20px);border:0;border-top:1px solid var(--line);background:none;text-align:left;border-radius:14px;transition:background .25s var(--ease),transform .15s var(--ease)}
.row:not(:disabled):not(.toggle):hover{background:var(--card2)}
.row:not(:disabled):not(.toggle):active{transform:scale(.985)}
.row:disabled{cursor:not-allowed}
.row:disabled .t,.row:disabled .ico{opacity:.45}
.ico{flex:0 0 auto;width:36px;height:36px;border-radius:10px;display:flex;align-items:center;justify-content:center;font-weight:700;font-size:15px;background:color-mix(in srgb,var(--u) 18%,transparent);color:var(--u);transition:transform .35s var(--spring),background .3s}
.row:not(:disabled):hover .ico{transform:scale(1.12) rotate(-6deg);background:color-mix(in srgb,var(--u) 30%,transparent)}
.row .t{flex:1 1 auto;display:flex;flex-direction:column;gap:2px;min-width:0}
.row .t b{font-size:17px;font-weight:600}
.row .t span{font-size:14px;color:var(--mu)}
.row .st{font-size:13px;font-weight:600;color:var(--mu);flex:0 0 auto}
.go{color:var(--bl);display:inline-flex;align-items:center;gap:4px;transition:gap .25s var(--spring)}
.go::after{content:"→";transition:transform .25s var(--spring)}
.row:hover .go::after{transform:translateX(4px)}

/* lesson overlay */
.lesson{position:fixed;inset:0;background:var(--bg);z-index:20;display:flex;flex-direction:column;animation:sheetIn .35s var(--ease) both}
.lesson.out{animation:sheetOut .2s ease-in both}
@keyframes sheetIn{from{opacity:0;transform:translateY(40px) scale(.98)}to{opacity:1;transform:none}}
@keyframes sheetOut{from{opacity:1}to{opacity:0;transform:translateY(24px)}}
@keyframes fadeIn{from{opacity:0}to{opacity:1}}
@keyframes fadeOut{from{opacity:1}to{opacity:0}}
.lhead{display:flex;align-items:center;gap:10px;padding:16px;padding-top:max(16px,env(safe-area-inset-top));max-width:720px;width:100%;margin:0 auto}
.icon-btn{position:relative;overflow:hidden;background:var(--card);border:0;width:44px;height:44px;border-radius:22px;display:flex;align-items:center;justify-content:center;flex:0 0 auto;transition:background .2s,opacity .2s,transform .2s var(--spring)}
.icon-btn:hover:not(:disabled){background:var(--track);transform:scale(1.06)}
.icon-btn:active:not(:disabled){transform:scale(.9)}
.icon-btn:disabled{opacity:.3;cursor:default}
.lhead .track{flex:1;margin:0 6px;height:10px;border-radius:5px}
.hearts{display:flex;gap:3px;color:var(--rd)}
.hearts span{display:flex;transition:color .3s}
.hearts span.off{color:#3A3A3C}
.hearts span.lose{animation:lose .7s var(--ease)}
@keyframes lose{0%{transform:scale(1);color:var(--rd)}30%{transform:scale(1.7) rotate(-12deg)}60%{transform:scale(.8) translateY(4px)}100%{transform:scale(1)}}
.lbody{flex:1;overflow:auto;padding:8px 16px 320px;max-width:720px;width:100%;margin:0 auto;-webkit-overflow-scrolling:touch}
.step.in-r{animation:inR .4s var(--ease) both}
.step.in-l{animation:inL .4s var(--ease) both}
@keyframes inR{from{opacity:0;transform:translateX(40px)}to{opacity:1;transform:none}}
@keyframes inL{from{opacity:0;transform:translateX(-40px)}to{opacity:1;transform:none}}
.step.in-r .info>*,.step.in-l .info>*{animation:flyUp .5s var(--ease) both}
.step .info>*:nth-child(2){animation-delay:.06s}.step .info>*:nth-child(3){animation-delay:.12s}.step .info>*:nth-child(4){animation-delay:.18s}.step .info>*:nth-child(n+5){animation-delay:.24s}
.crumb{font-size:13px;font-weight:600;color:var(--mu);margin:4px 0 -4px}
.lbody h3{margin:12px 0 16px;font-size:26px;line-height:1.25;font-weight:600;letter-spacing:-.02em}
.hint{font-size:14px!important;color:var(--mu)!important;margin:-8px 0 8px}
.lbody p,.lbody li,.info p,.info li{color:var(--tx2);font-size:17px;line-height:1.55}
.lbody b,.info b{color:var(--tx);font-weight:600}
.info .lead-p,.lead-p{font-size:20px;line-height:1.4;color:var(--tx);font-weight:500;margin:0 0 12px}
.pts{padding-left:20px;margin:8px 0}
.pts li{margin:6px 0}
.steps{padding-left:22px;margin:8px 0}
.steps li{margin:6px 0;padding-left:4px}
.ex{background:var(--card);border-radius:18px;padding:14px 18px;margin:14px 0;transition:transform .3s var(--ease)}
.ex:hover{transform:translateX(3px)}
.ex p{margin:6px 0}
.ex-t{font-size:12px;font-weight:700;letter-spacing:.06em;text-transform:uppercase;color:var(--mu);margin-bottom:6px}
.note{background:rgba(255,214,10,.09);border-radius:18px;padding:14px 18px;margin:14px 0;font-size:15px;color:#E9DB94}
.note .ex-t{color:var(--am)}
.tbl{width:100%;border-collapse:separate;border-spacing:0;margin:12px 0;font-size:15px;background:var(--card);border-radius:18px;overflow:hidden}
.tbl th{text-align:left;font-size:12px;letter-spacing:.06em;text-transform:uppercase;color:var(--mu);font-weight:700;padding:12px 14px 6px}
.tbl td{padding:10px 14px;border-top:1px solid var(--line);color:var(--tx2);vertical-align:top;transition:background .2s}
.tbl tr:hover td{background:var(--card2)}
.tbl td:first-child{color:var(--tx);font-weight:600}
.fig{margin:12px 0}.fig svg{width:100%;height:auto;max-width:420px;display:block}
.card{background:var(--card);border-radius:20px;padding:16px 20px;margin:12px 0;color:var(--tx2)}
.term{all:unset;color:#CFE6FF;border-bottom:2px dotted rgba(108,180,255,.8);cursor:help;transition:color .2s,border-color .2s,background .2s;border-radius:3px}
.term:hover{color:var(--bl);border-bottom-style:solid;background:rgba(108,180,255,.1)}
.term:focus-visible{outline:2px solid var(--bl)}

/* options */
.opts{margin-top:8px}
.opt{position:relative;overflow:hidden;display:flex;gap:14px;align-items:flex-start;width:100%;text-align:left;background:var(--card);border:2px solid transparent;border-radius:18px;padding:15px 18px;margin:10px 0;font-weight:600;font-size:17px;transition:border-color .2s,background .2s,transform .2s var(--spring),opacity .3s,box-shadow .25s}
.step.in-r .opt,.step.in-l .opt{animation:flyUp .45s var(--ease) both;animation-delay:calc(.1s + var(--i,0) * .06s)}
.opt:not(:disabled):hover{border-color:#48484A;transform:translateY(-2px);box-shadow:0 8px 20px rgba(0,0,0,.45)}
.opt:not(:disabled):active{transform:scale(.97);transition-duration:.08s}
.opt .k{flex:0 0 auto;width:26px;height:26px;border-radius:8px;background:var(--track);color:var(--mu);font-size:13px;display:flex;align-items:center;justify-content:center;margin-top:1px;transition:background .2s,color .2s,transform .3s var(--spring)}
.opt:not(:disabled):hover .k{transform:scale(1.1)}
.opt .o-t{display:flex;flex-direction:column;gap:6px}
.o-why{font-weight:400;font-size:15px;color:var(--mu);line-height:1.45;animation:rise .35s var(--ease) both}
.opt.sel{border-color:var(--bl);background:rgba(108,180,255,.08)}
.opt.sel .k{background:var(--bl);color:#000;transform:scale(1.1)}
.opt:disabled{cursor:default}
.opt.ok{border-color:var(--gr);background:rgba(50,215,75,.12)}
.opt.ok .k{background:var(--gr);color:#000}
.opt.bad{border-color:var(--rd);background:rgba(255,69,58,.12)}
.opt.bad .k{background:var(--rd);color:#000}
.opt.missed{border-color:var(--gr);border-style:dashed;background:rgba(50,215,75,.05)}
.opt.dim{opacity:.5}
.opt.multi .box{color:transparent}
.opt.multi .box svg{width:14px;height:14px}
.opt.sel-box .box{color:#000;background:var(--bl)}
.opt.ok.sel-box .box{background:var(--gr)}.opt.bad.sel-box .box{background:var(--rd)}
.anim-pop{animation:pop .5s var(--spring),glow 1s var(--ease)}
.anim-shake{animation:shake .45s}
@keyframes pop{0%{transform:scale(1)}40%{transform:scale(1.04)}100%{transform:scale(1)}}
@keyframes glow{0%{box-shadow:0 0 0 0 rgba(50,215,75,.55)}100%{box-shadow:0 0 0 18px rgba(50,215,75,0)}}
@keyframes shake{0%,100%{transform:none}20%{transform:translateX(-9px)}40%{transform:translateX(8px)}60%{transform:translateX(-5px)}80%{transform:translateX(3px)}}
.xp-fly{position:fixed;left:50%;bottom:180px;transform:translateX(-50%);font-weight:700;font-size:22px;color:var(--am);pointer-events:none;z-index:30;animation:xpFly 1.1s var(--ease) both;text-shadow:0 2px 12px rgba(255,214,10,.4)}
@keyframes xpFly{0%{opacity:0;transform:translate(-50%,20px) scale(.6)}25%{opacity:1;transform:translate(-50%,0) scale(1.15)}100%{opacity:0;transform:translate(-50%,-70px) scale(1)}}

/* order + calc */
.order-slots{display:flex;flex-direction:column;gap:8px;margin:8px 0 16px}
.slot{position:relative;overflow:hidden;display:flex;gap:14px;align-items:flex-start;width:100%;text-align:left;min-height:54px;background:var(--card);border:2px dashed #3A3A3C;border-radius:16px;padding:13px 16px;font-weight:600;font-size:16px;transition:border-color .2s,background .2s,transform .2s var(--spring)}
.slot .k{flex:0 0 auto;width:26px;height:26px;border-radius:8px;background:var(--track);color:var(--mu);font-size:13px;display:flex;align-items:center;justify-content:center}
.slot .o-t{display:flex;flex-direction:column;gap:6px}
.slot.filled{border-style:solid;border-color:var(--bl);background:rgba(108,180,255,.07);animation:snap .35s var(--spring)}
.slot.filled:not(:disabled):hover{transform:translateX(4px)}
@keyframes snap{from{transform:scale(.94);opacity:.4}to{transform:none;opacity:1}}
.slot.ok{border-style:solid;border-color:var(--gr);background:rgba(50,215,75,.1)}
.slot.bad{border-style:solid;border-color:var(--rd);background:rgba(255,69,58,.1)}
.order-bank{display:flex;flex-wrap:wrap;gap:8px}
.chip{position:relative;overflow:hidden;border:0;background:var(--card3);border-radius:14px;padding:12px 16px;font-weight:600;font-size:15px;text-align:left;transition:transform .2s var(--spring),background .2s,box-shadow .2s;animation:flyUp .4s var(--ease) both}
.chip:hover{transform:translateY(-3px);background:#3A3A3C;box-shadow:0 8px 18px rgba(0,0,0,.45)}
.chip:active{transform:scale(.94)}
.calc{display:flex;align-items:center;gap:8px;background:var(--card);border:2px solid transparent;border-radius:18px;padding:8px 16px;font-size:24px;font-weight:600;transition:border-color .2s}
.calc:focus-within{border-color:var(--bl)}
.calc.ok{border-color:var(--gr)}.calc.bad{border-color:var(--rd);animation:shake .45s}
.calc-fix{color:var(--mu)}
.calc input.calc-in{flex:1;min-width:0;background:none;border:0;border-radius:0;color:var(--tx);font:inherit;padding:8px 0;margin:0;outline:none}

/* footer */
.foot{position:fixed;left:0;right:0;bottom:0;padding:12px 16px 20px;padding-bottom:max(20px,env(safe-area-inset-bottom));background:linear-gradient(transparent,#000 30%)}
.foot .in{max-width:720px;margin:0 auto;display:flex;flex-direction:column;gap:12px}
.foot.ok .in,.foot.bad .in{background:var(--card);border-radius:24px;padding:18px;box-shadow:0 -10px 40px rgba(0,0,0,.6)}
.foot.ok .in{box-shadow:0 -10px 40px rgba(0,0,0,.6),inset 0 2px 0 rgba(50,215,75,.5)}
.foot.bad .in{box-shadow:0 -10px 40px rgba(0,0,0,.6),inset 0 2px 0 rgba(255,69,58,.5)}
.foot .in.pop{animation:slideUp .45s var(--spring) both}
@keyframes slideUp{from{opacity:0;transform:translateY(60px)}to{opacity:1;transform:none}}
.foot .msg{font-size:15px;color:var(--tx2);line-height:1.5;max-height:34vh;overflow:auto}
.foot .msg p{margin:0 0 6px}
.foot .msg .fb-t{font-size:20px;font-weight:700;margin-bottom:4px}
.foot.ok .msg .fb-t{color:var(--gr)}.foot.bad .msg .fb-t{color:var(--rd2)}
.picked{display:block;color:var(--mu)}
.foot-row{display:flex;gap:10px}
.foot-row .btn{flex:1}
.keys{font-size:12px;color:#6E6E73;text-align:center}

/* coin */
.grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(150px,1fr));gap:8px;margin:12px 0}
.stat{background:var(--card);border-radius:16px;padding:10px 14px;min-width:0;transition:transform .25s var(--spring),background .2s;animation:flyUp .4s var(--ease) both}
.stat:hover{transform:scale(1.03);background:var(--card2)}
.grid .stat:nth-child(2){animation-delay:.03s}.grid .stat:nth-child(3){animation-delay:.06s}.grid .stat:nth-child(4){animation-delay:.09s}.grid .stat:nth-child(5){animation-delay:.12s}.grid .stat:nth-child(6){animation-delay:.15s}.grid .stat:nth-child(7){animation-delay:.18s}.grid .stat:nth-child(8){animation-delay:.21s}.grid .stat:nth-child(n+9){animation-delay:.24s}
.stat span{display:block;color:var(--mu2);font-size:13px}
.stat b{font-size:17px;font-weight:600;overflow-wrap:anywhere}
.flags{animation:flyUp .45s var(--ease) both}
.flag{font-size:15px;padding:6px 0;display:flex;gap:10px;align-items:baseline;color:var(--tx2);animation:rise .4s var(--ease) both}
.flag:nth-child(3){animation-delay:.06s}.flag:nth-child(4){animation-delay:.12s}.flag:nth-child(5){animation-delay:.18s}.flag:nth-child(n+6){animation-delay:.24s}
.flag::before{content:"";flex:0 0 auto;width:10px;height:10px;border-radius:5px;background:var(--mu2);transform:translateY(1px)}
.flag.bad::before{background:var(--rd)}.flag.good::before{background:var(--gr)}.flag.meh::before{background:var(--am)}
svg.chart{width:100%;height:auto;background:var(--card);border-radius:20px;display:block;margin:4px 0}
svg.chart rect,svg.chart line{animation:candle .5s var(--ease) both}
@keyframes candle{from{opacity:0}to{opacity:1}}

/* sims */
.sim-val{font-size:20px;margin-bottom:6px}
.sim-val .imp{font-weight:700;color:var(--gr);margin-left:8px;display:inline-block;transition:transform .2s var(--spring)}
.sim-val .imp.neg{color:var(--rd2)}
input[type=range]{width:100%;accent-color:var(--tx);height:32px;cursor:grab}
input[type=range]:active{cursor:grabbing}
.sim .r{display:flex;justify-content:space-between;gap:12px;padding:9px 0;border-top:1px solid var(--line);font-size:15px;color:var(--mu)}
.sim .r b{color:var(--tx);font-weight:600}

/* results */
.res{text-align:center;padding:32px 0;position:relative}
.res .big{font-size:44px;font-weight:700;letter-spacing:-.03em;animation:flyUp .5s var(--spring) both}
.res p{color:var(--mu)}
.res-stars .stars svg{width:44px;height:44px}
.res-stars .stars span{animation:starIn .55s var(--spring) both}
.res-stars .stars span:nth-child(1){animation-delay:.15s}.res-stars .stars span:nth-child(2){animation-delay:.3s}.res-stars .stars span:nth-child(3){animation-delay:.45s}
@keyframes starIn{from{opacity:0;transform:scale(0) rotate(-90deg)}to{opacity:1;transform:none}}
.res-stars{margin:14px 0}
.res-row{display:flex;gap:12px;margin:20px 0}
.res-row .w{text-align:left;animation:flyUp .5s var(--ease) .2s both}
.res-row .w+.w{animation-delay:.3s}
.recap{background:var(--card);border-radius:20px;padding:16px 20px;text-align:left;margin:12px 0;animation:flyUp .5s var(--ease) .4s both}
.recap li{color:var(--tx2)}
.confetti{position:absolute;left:0;right:0;top:40px;height:0;pointer-events:none}
.confetti i{position:absolute;top:0;width:8px;height:12px;border-radius:2px;animation:conf 1.4s cubic-bezier(.15,.7,.3,1) both}
@keyframes conf{0%{transform:translate(0,0) rotate(0);opacity:1}100%{transform:translate(var(--dx),calc(var(--dy) * -1.6)) rotate(var(--r));opacity:0}}

/* modal + toast */
.modal-back{position:fixed;inset:0;z-index:50;background:rgba(0,0,0,.6);backdrop-filter:blur(8px);-webkit-backdrop-filter:blur(8px);display:flex;align-items:center;justify-content:center;padding:16px;animation:fadeIn .2s both}
.modal-back.out{animation:fadeOut .18s both}
.modal{background:var(--card);border-radius:24px;padding:24px;width:100%;max-width:460px;max-height:90vh;overflow:auto;animation:modalIn .4s var(--spring) both}
@keyframes modalIn{from{opacity:0;transform:scale(.9) translateY(20px)}to{opacity:1;transform:none}}
.modal h3{margin:0 0 8px;font-size:22px;font-weight:600}
.modal p{color:var(--tx2);margin:6px 0 0;line-height:1.5}
.modal-acts{display:flex;gap:10px;margin-top:20px}
.modal-acts .btn{flex:1}
.toast{position:fixed;left:50%;bottom:24px;bottom:max(24px,env(safe-area-inset-bottom));transform:translateX(-50%);background:var(--tx);color:#000;padding:12px 20px;border-radius:999px;font-weight:600;font-size:15px;z-index:60;max-width:calc(100% - 32px);animation:toastIn .45s var(--spring) both}
.toast.out{animation:toastOut .25s both}
@keyframes toastIn{from{opacity:0;transform:translate(-50%,30px) scale(.9)}to{opacity:1;transform:translate(-50%,0)}}
@keyframes toastOut{from{opacity:1;transform:translate(-50%,0)}to{opacity:0;transform:translate(-50%,20px)}}

/* forms */
.form{display:flex;flex-direction:column;gap:4px;margin-top:8px}
.fld{display:flex;flex-direction:column;gap:4px;font-size:13px;color:var(--mu);font-weight:600}
input[type=text],input[type=number],input[type=search],input[type=password],textarea{width:100%;background:var(--track);border:2px solid transparent;border-radius:14px;padding:12px 14px;color:var(--tx);font:inherit;font-weight:400;margin:0 0 8px;transition:border-color .2s,background .2s}
input:focus,textarea:focus{outline:none;border-color:var(--bl);background:#333336}
.chk{display:flex;gap:10px;align-items:center;font-size:15px;color:var(--tx2);margin:4px 0 12px}
.chk input{width:20px;height:20px;accent-color:var(--gr)}
.err{color:var(--rd2);font-size:14px;margin:0;min-height:1em}
.search{margin-bottom:16px}
.search input{background:var(--card);border-radius:999px;padding:14px 20px;font-size:16px}

/* handbook */
.gloss{display:grid;grid-template-columns:repeat(auto-fill,minmax(260px,1fr));gap:8px;padding-bottom:20px}
.g-item{background:var(--card2);border-radius:16px;padding:12px 16px;display:flex;flex-direction:column;gap:4px;transition:transform .25s var(--spring),background .2s}
.g-item:hover{transform:translateY(-2px);background:var(--card3)}
.g-item span{font-size:14px;color:var(--mu);line-height:1.45}
.note-d{border-top:1px solid var(--line)}
.note-d summary{position:relative;overflow:hidden;list-style:none;display:flex;align-items:center;gap:16px;padding:16px 10px;margin:0 -10px;cursor:pointer;border-radius:14px;transition:background .2s}
.note-d summary:hover{background:var(--card2)}
.note-d summary::-webkit-details-marker{display:none}
.note-d .t{flex:1;display:flex;flex-direction:column;gap:2px}
.note-d .t b{font-size:17px;font-weight:600}.note-d .t span{font-size:14px;color:var(--mu)}
.chev{color:var(--mu);transition:transform .35s var(--spring);display:flex}
.note-d[open] .chev{transform:rotate(90deg)}
.note-body{padding-bottom:16px;animation:flyUp .4s var(--ease) both}
.info-card{background:var(--card2);border-radius:18px;padding:16px 18px;margin:10px 0}
.info-card h4{margin:0 0 8px;font-size:18px}
.info-card .ex,.info-card .tbl{background:var(--track)}

/* journal */
.jcard{margin-bottom:16px}
.j-coin{color:var(--tx);font-size:20px}
.j-tags{display:flex;gap:6px}
.j-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(140px,1fr));gap:8px}
.j-grid div,.j-text{background:var(--card2);border-radius:14px;padding:10px 14px;font-size:15px;color:var(--tx2)}
.j-grid span,.j-text span{display:block;font-size:12px;color:var(--mu2);font-weight:600;margin-bottom:2px}

/* settings */
.toggle{cursor:pointer;position:relative}
.toggle input{position:absolute;opacity:0;width:1px;height:1px}
.sw{flex:0 0 auto;width:51px;height:31px;border-radius:16px;background:#3A3A3C;position:relative;transition:background .25s}
.sw::after{content:"";position:absolute;top:2px;left:2px;width:27px;height:27px;border-radius:50%;background:#fff;transition:transform .35s var(--spring),width .2s var(--ease)}
.toggle:active .sw::after{width:33px}
.toggle input:checked+.sw{background:var(--gr)}
.toggle input:checked+.sw::after{transform:translateX(20px)}
.toggle:active input:checked+.sw::after{transform:translateX(14px)}
.sync-state{display:flex;align-items:center;gap:8px;font-size:14px;color:var(--mu);padding:4px 0 12px}

/* read aloud */
.icon-btn.speak.on{background:var(--bl);color:#000;animation:pulseRing 1.6s ease-out infinite}
@keyframes pulseRing{0%{box-shadow:0 0 0 0 rgba(108,180,255,.6)}100%{box-shadow:0 0 0 12px rgba(108,180,255,0)}}
.reading{background:rgba(108,180,255,.14)!important;box-shadow:0 0 0 6px rgba(108,180,255,.14);border-radius:10px;transition:background .25s,box-shadow .25s}
tr.reading td{background:rgba(108,180,255,.14)}
.read-btn{margin:4px 0 10px;display:inline-flex;align-items:center;gap:6px}
.btn svg{vertical-align:-3px}

/* remember this */
.key-line{background:rgba(50,215,75,.1);border-radius:18px;padding:14px 18px;margin:16px 0 4px}
.key-line .ex-t{color:var(--gr);display:flex;align-items:center;gap:6px}
.key-line p{margin:2px 0 0!important;font-size:18px!important;font-weight:600;color:var(--tx)!important;line-height:1.4!important}
.key-sheet{background:rgba(50,215,75,.08);border-radius:18px;padding:14px 18px;margin:0 0 12px}
.key-sheet .ex-t{color:var(--gr);display:flex;align-items:center;gap:6px}
.key-sheet li{color:var(--tx);font-weight:500}
.note-d.inner{border-top:0;margin-top:8px}
.hb-tools{margin-bottom:12px}
.gloss-d{padding:8px 28px}
.gloss-d summary{margin:0 -10px}

/* focus mode + where was I */
.hid{display:none!important}
.pop-in{animation:flyUp .45s var(--spring) both}
.where-list{display:flex;flex-direction:column;gap:10px;margin-top:8px}
.where-list .key-line{margin:0;animation:flyUp .45s var(--ease) both}
.where-list .key-line:nth-child(2){animation-delay:.1s}.where-list .key-line:nth-child(3){animation-delay:.2s}

/* memory stats */
.mem-bar{display:flex;height:14px;border-radius:7px;overflow:hidden;background:var(--track);gap:2px;margin-top:6px}
.mem-bar i{display:block;height:100%;transition:width .8s var(--spring)}
.mem-legend{display:flex;flex-wrap:wrap;gap:16px;font-size:14px;color:var(--mu)}
.mem-legend>span{display:flex;align-items:center;gap:6px}

/* settings controls */
.seg-row{flex-wrap:wrap}
.seg{display:flex;gap:4px;background:var(--track);border-radius:999px;padding:4px}
.seg-b{border:0;background:none;color:var(--mu);font-weight:700;padding:8px 14px;border-radius:999px;min-width:44px;transition:background .25s var(--spring),color .2s}
.seg-b.on{background:var(--tx);color:#000}
.select{background:var(--track);color:var(--tx);border:0;border-radius:12px;padding:10px 12px;font:inherit;max-width:100%;min-width:0;flex:1 1 220px}
.rate{flex:1 1 220px;max-width:320px}

/* flashcards */
.fc{display:block;width:100%;max-width:520px;margin:12px auto;height:300px;perspective:1200px;background:none;border:0;padding:0}
.fc-inner{position:relative;width:100%;height:100%;transition:transform .6s var(--spring);transform-style:preserve-3d}
.fc.flipped .fc-inner{transform:rotateY(180deg)}
.fc-face{position:absolute;inset:0;backface-visibility:hidden;-webkit-backface-visibility:hidden;background:var(--card);border-radius:28px;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:12px;padding:28px;text-align:center;box-shadow:0 20px 50px rgba(0,0,0,.5)}
.fc-face h4{margin:0;font-size:34px;letter-spacing:-.02em}
.fc-back{transform:rotateY(180deg);background:var(--card2)}
.fc-back p{font-size:19px;line-height:1.5;color:var(--tx);margin:0}
.fc:hover .fc-inner{box-shadow:none}
.fc:not(.flipped):hover .fc-front{transform:translateY(-3px)}
.fc-front{transition:transform .3s var(--spring)}

/* readability */
.wrap,.lesson>*,.modal{zoom:var(--zoom,1)}
body.roomy .lbody p,body.roomy .lbody li,body.roomy .info p,body.roomy .info li{line-height:1.85!important}
body.roomy .pts li,body.roomy .steps li{margin:12px 0}
body.roomy .info>*{margin-bottom:18px}
body.easyfont,body.easyfont button,body.easyfont input,body.easyfont textarea,body.easyfont select{font-family:'Atkinson Hyperlegible','Inter Tight',system-ui,sans-serif;letter-spacing:.01em}

@media(hover:none){.w:hover,.opt:not(:disabled):hover,.btn:hover,.chip:hover,.g-item:hover,.stat:hover{transform:none;box-shadow:none}}
@media(max-width:600px){.w,.unit{padding:20px}h1{font-size:34px}.flex{gap:10px;margin-bottom:10px}.w{flex:1 1 calc(50% - 5px);padding:16px 18px;border-radius:20px}.w.big{flex-basis:100%;padding:20px}.w .num{font-size:40px}.w .cap{font-size:13px}.w .lead{font-size:22px}.unit .uh{flex-wrap:wrap;align-items:flex-start}.u-prog{flex-direction:row;align-items:center;min-width:0}.lbody h3{font-size:23px}.res-row{flex-direction:column}.foot-row{flex-wrap:wrap}}
body.calm *,body.calm *::before,body.calm *::after{animation:none!important;transition:none!important}
body.calm .reveal{opacity:1}
@media(prefers-reduced-motion:reduce){*,*::before,*::after{animation-duration:.01ms!important;animation-delay:0ms!important;transition-duration:.01ms!important}}