/* Layout: the home screen is Ajji's field, 17 plots in five Part rows that grow as stars are earned; play is one question card with the cast speaking beside it. */
:root{
  --bg:#EAF0E4; --surface:#FFFFFF; --surface2:#F4F7F0; --ink:#1B2A24; --muted:#56675E; --line:#D3DDCC;
  --teal:#0E6B72; --tomato:#CF3F2A; --saffron:#B8651A; --gold:#D39B12; --plum:#6A4A98; --leaf:#3F7D3A;
  --soil:#8B6A4A; --soil2:#A9865F; --good:#23764A; --bad:#B8362A; --goodbg:#E1F1E6; --badbg:#FBE6E1;
  --focus:#0E6B72; --onaccent:#FFFFFF; --shadow:0 1px 2px rgba(20,40,30,.08),0 4px 14px rgba(20,40,30,.06);
  --display:"Fraunces",Georgia,"Times New Roman",serif;
  --body:"Lexend",system-ui,-apple-system,"Segoe UI",sans-serif;
  --mono:"JetBrains Mono",ui-monospace,SFMono-Regular,Menlo,monospace;
}
@media (prefers-color-scheme: dark){:root:not([data-theme="light"]){
  --bg:#0D1916; --surface:#15251F; --surface2:#1B2E27; --ink:#E4EEE7; --muted:#9AB0A5; --line:#2A4038;
  --teal:#56BEC3; --tomato:#FF6A50; --saffron:#F0A04A; --gold:#F2C14E; --plum:#B99DE8; --leaf:#80C872;
  --soil:#6B4F37; --soil2:#8A6A4B; --good:#6FD39A; --bad:#FF7F6B; --goodbg:#16362A; --badbg:#3B201B;
  --focus:#56BEC3; --onaccent:#0D1916; --shadow:0 1px 2px rgba(0,0,0,.3),0 4px 14px rgba(0,0,0,.25); color-scheme:dark}}
:root[data-theme="dark"]{
  --bg:#0D1916; --surface:#15251F; --surface2:#1B2E27; --ink:#E4EEE7; --muted:#9AB0A5; --line:#2A4038;
  --teal:#56BEC3; --tomato:#FF6A50; --saffron:#F0A04A; --gold:#F2C14E; --plum:#B99DE8; --leaf:#80C872;
  --soil:#6B4F37; --soil2:#8A6A4B; --good:#6FD39A; --bad:#FF7F6B; --goodbg:#16362A; --badbg:#3B201B;
  --focus:#56BEC3; --onaccent:#0D1916; --shadow:0 1px 2px rgba(0,0,0,.3),0 4px 14px rgba(0,0,0,.25); color-scheme:dark}
[hidden]{display:none!important}
*{box-sizing:border-box}
html,body{background:var(--bg)}
body{margin:0;color:var(--ink);font-family:var(--body);font-size:16px;line-height:1.5;-webkit-font-smoothing:antialiased}
button{font:inherit;color:inherit;cursor:pointer}
button:focus-visible,input:focus-visible,summary:focus-visible{outline:3px solid var(--focus);outline-offset:2px}
.wrap{max-width:1080px;margin:0 auto;padding-inline:16px;padding-block:12px 56px}
h1,h2,h3{font-family:var(--display);text-wrap:balance;margin:0}
.num{font-family:var(--mono);font-variant-numeric:tabular-nums}

/* top bar */
.bar{position:sticky;top:env(safe-area-inset-top,0px);z-index:5;background:color-mix(in srgb,var(--bg) 88%,transparent);backdrop-filter:blur(8px);border-bottom:1px solid var(--line)}
.bar .in{max-width:1080px;margin:0 auto;padding:10px 16px;display:flex;align-items:center;gap:12px;flex-wrap:wrap}
.brand{display:flex;align-items:center;gap:8px;background:none;border:0;padding:0;margin-right:auto}
.brand b{font-family:var(--display);font-weight:800;font-size:19px;letter-spacing:-.01em}
.brand small{display:block;font-size:11px;color:var(--muted);letter-spacing:.08em;text-transform:uppercase;font-weight:500;line-height:1}
.chips{display:flex;gap:6px;flex-wrap:wrap}
.chip{display:inline-flex;align-items:center;gap:6px;background:var(--surface);border:1px solid var(--line);border-radius:999px;padding:4px 10px;font-size:13px;white-space:nowrap}
.chip svg{flex:none}
.iconbtn{display:inline-flex;align-items:center;gap:6px;border:1px solid var(--line);background:var(--surface);border-radius:10px;padding:6px 10px;font-size:13px}
.iconbtn:hover{border-color:var(--teal)}

/* home */
.hero{display:grid;grid-template-columns:auto 1fr;gap:14px;align-items:center;margin:18px 0 8px}
.hero .say{background:var(--surface);border:1px solid var(--line);border-radius:14px;padding:12px 14px;position:relative;box-shadow:var(--shadow);min-width:0}
.hero h1{font-size:clamp(26px,5vw,40px);font-weight:800;letter-spacing:-.02em;line-height:1.05;margin-bottom:6px}
.hero p{margin:0;color:var(--muted);font-size:15px}
.cast{display:flex}
.cast svg{margin-left:-10px;border-radius:50%;background:var(--surface);box-shadow:0 0 0 3px var(--bg)}
.cast svg:first-child{margin-left:0}
.progress{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:10px;margin:14px 0 6px}
.stat{background:var(--surface);border:1px solid var(--line);border-radius:12px;padding:10px 12px;min-width:0}
.stat .k{font-size:11px;letter-spacing:.08em;text-transform:uppercase;color:var(--muted)}
.stat .v{font-family:var(--mono);font-weight:700;font-size:22px;font-variant-numeric:tabular-nums}
.stat .v small{font-size:13px;color:var(--muted);font-weight:500}
.bar2{height:6px;background:var(--surface2);border-radius:99px;overflow:hidden;margin-top:6px}
.bar2 i{display:block;height:100%;background:var(--leaf);border-radius:99px}
.actions{display:flex;gap:8px;flex-wrap:wrap;margin:12px 0 4px}
.btn{border:0;border-radius:12px;padding:11px 18px;font-weight:600;font-size:15px;background:var(--teal);color:var(--onaccent);display:inline-flex;align-items:center;gap:8px}
.btn.ghost{background:var(--surface);color:var(--ink);border:1px solid var(--line)}
.btn.warm{background:var(--saffron)}
.btn:disabled{opacity:.45;cursor:not-allowed}
.part{margin-top:26px}
.part header{display:flex;align-items:baseline;gap:10px;flex-wrap:wrap;margin-bottom:10px;border-bottom:1px dashed var(--line);padding-bottom:6px}
.part header .pk{font-size:12px;letter-spacing:.12em;text-transform:uppercase;color:var(--saffron);font-weight:600}
.part header h2{font-size:22px;font-weight:600}
.plots{display:grid;grid-template-columns:repeat(auto-fill,minmax(200px,1fr));gap:12px}
.plot{text-align:left;background:var(--surface);border:1px solid var(--line);border-radius:14px;padding:0;overflow:hidden;display:flex;flex-direction:column;box-shadow:var(--shadow);transition:transform .15s ease,border-color .15s}
.plot:hover:not(.locked){transform:translateY(-2px);border-color:var(--leaf)}
.plot .art{background:var(--surface2);border-bottom:1px solid var(--line);display:block;line-height:0}
.plot .art svg{width:100%;height:auto;display:block}
.plot .meta{padding:10px 12px 12px;display:grid;gap:3px;min-width:0}
.plot .ep{font-family:var(--mono);font-size:11px;color:var(--muted);letter-spacing:.06em}
.plot .h3{font-family:var(--display);font-size:17px;font-weight:600;line-height:1.2;text-wrap:balance}
.plot .bk{font-size:12.5px;color:var(--muted)}
.plot .row{display:flex;justify-content:space-between;align-items:center;margin-top:4px;font-size:12px;color:var(--muted)}
.plot.locked{opacity:.62;cursor:not-allowed}
.plot.boss{border-color:var(--saffron);border-width:2px}
.stars{display:inline-flex;gap:2px}
.side{display:grid;grid-template-columns:repeat(auto-fit,minmax(260px,1fr));gap:12px;margin-top:26px}
.panel{background:var(--surface);border:1px solid var(--line);border-radius:14px;padding:14px 16px;min-width:0}
.panel h3{font-size:18px;font-weight:600;margin-bottom:6px}
.panel p{margin:0 0 10px;color:var(--muted);font-size:14px}
.badges{display:grid;grid-template-columns:repeat(auto-fill,minmax(150px,1fr));gap:10px}
.badge{display:flex;gap:10px;align-items:center;background:var(--surface2);border:1px solid var(--line);border-radius:12px;padding:8px 10px;min-width:0}
.badge .t{font-size:13px;font-weight:600;line-height:1.2}
.badge .d{font-size:11.5px;color:var(--muted);line-height:1.3}
.badge.off{opacity:.5;filter:grayscale(1)}
details.how summary{cursor:pointer;font-weight:600}
details.how ul{margin:8px 0 0;padding-left:18px;color:var(--muted);font-size:14px}
.sync{font-size:12px;color:var(--muted)}

/* play */
.playtop{display:flex;align-items:center;gap:10px;flex-wrap:wrap;margin:14px 0 8px}
.playtop h2{font-size:20px;font-weight:600;margin-right:auto;min-width:0}
.lives{display:inline-flex;gap:3px;flex-wrap:wrap}
.track{height:8px;background:var(--surface);border:1px solid var(--line);border-radius:99px;overflow:hidden;margin-bottom:14px}
.track i{display:block;height:100%;background:var(--teal);transition:width .3s ease}
.timer{height:5px;background:var(--surface2);border-radius:99px;overflow:hidden;margin:-8px 0 12px}
.timer i{display:block;height:100%;background:var(--saffron)}
.stage{display:grid;grid-template-columns:minmax(0,1fr) 250px;gap:16px;align-items:start}
@media (max-width:820px){.stage{grid-template-columns:minmax(0,1fr)}}
.qcard{background:var(--surface);border:1px solid var(--line);border-radius:16px;padding:18px 18px 16px;box-shadow:var(--shadow);min-width:0}
.sectag{display:inline-flex;gap:6px;align-items:center;font-size:12px;color:var(--teal);background:color-mix(in srgb,var(--teal) 12%,transparent);border-radius:999px;padding:3px 10px;font-weight:500;margin-bottom:10px;max-width:100%}
.sectag span{white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.qtype{font-size:11px;letter-spacing:.1em;text-transform:uppercase;color:var(--muted);margin-bottom:4px}
.qtext{font-size:19px;line-height:1.45;margin:0 0 14px;font-weight:500}
.opts{display:grid;gap:8px}
.opt{text-align:left;border:1.5px solid var(--line);background:var(--surface2);border-radius:12px;padding:11px 14px;display:flex;gap:10px;align-items:flex-start;font-size:15.5px;line-height:1.4}
.opt .k{font-family:var(--mono);font-size:12px;color:var(--muted);border:1px solid var(--line);border-radius:6px;padding:1px 6px;flex:none;margin-top:2px}
.opt:hover:not(:disabled){border-color:var(--teal)}
.opt.sel{border-color:var(--teal);background:color-mix(in srgb,var(--teal) 10%,var(--surface2))}
.opt.ok{border-color:var(--good);background:var(--goodbg)}
.opt.no{border-color:var(--bad);background:var(--badbg)}
.opt.gone{opacity:.35;text-decoration:line-through}
.opt:disabled{cursor:default}
.fill{display:flex;gap:8px;flex-wrap:wrap}
.fill input{flex:1 1 220px;min-width:0;font:inherit;font-size:17px;padding:11px 14px;border-radius:12px;border:1.5px solid var(--line);background:var(--surface2);color:var(--ink)}
.fill input.ok{border-color:var(--good);background:var(--goodbg)}
.fill input.no{border-color:var(--bad);background:var(--badbg)}
.match{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1fr);gap:10px}
.col{display:grid;gap:8px;align-content:start}
.col .lab{font-size:11px;letter-spacing:.1em;text-transform:uppercase;color:var(--muted)}
.mi{text-align:left;border:1.5px solid var(--line);background:var(--surface2);border-radius:10px;padding:9px 10px;font-size:14px;line-height:1.35;display:flex;gap:8px;align-items:flex-start;min-width:0;overflow-wrap:anywhere}
.mi .tag{flex:none;font-family:var(--mono);font-size:11px;font-weight:700;border-radius:6px;padding:1px 6px;color:#fff;margin-top:1px}
.mi.active{border-color:var(--teal);box-shadow:0 0 0 3px color-mix(in srgb,var(--teal) 25%,transparent)}
.mi.used{opacity:.55}
.mi.ok{border-color:var(--good);background:var(--goodbg)}
.mi.no{border-color:var(--bad);background:var(--badbg)}
.mi.lock{border-style:dashed}
.ord{display:grid;gap:10px}
.seq,.pool{display:grid;gap:6px;min-height:44px;border-radius:12px;padding:8px;border:1.5px dashed var(--line)}
.seq{background:color-mix(in srgb,var(--teal) 6%,transparent)}
.seq .empty,.pool .empty{font-size:13px;color:var(--muted);padding:4px}
.oi{text-align:left;border:1.5px solid var(--line);background:var(--surface);border-radius:10px;padding:8px 10px;font-size:14.5px;display:flex;gap:8px;align-items:center}
.oi .n{font-family:var(--mono);font-size:12px;font-weight:700;color:var(--teal);min-width:1.4em}
.oi.ok{border-color:var(--good);background:var(--goodbg)}
.oi.no{border-color:var(--bad);background:var(--badbg)}
.oi.lock{border-style:dashed}
.qfoot{display:flex;gap:8px;flex-wrap:wrap;align-items:center;margin-top:14px}
.qfoot .sp{margin-right:auto}
.hintbtn{border:1px dashed var(--saffron);background:transparent;color:var(--saffron);border-radius:10px;padding:8px 12px;font-size:14px;font-weight:500;display:inline-flex;gap:6px;align-items:center}
.hintbtn:disabled{opacity:.4}
.hintbox{margin-top:10px;font-size:14px;background:color-mix(in srgb,var(--saffron) 12%,transparent);border-radius:10px;padding:8px 12px}
.fb{margin-top:14px;border-radius:12px;padding:12px 14px;font-size:15px;line-height:1.5;border:1px solid var(--line)}
.fb.ok{background:var(--goodbg);border-color:color-mix(in srgb,var(--good) 40%,transparent)}
.fb.no{background:var(--badbg);border-color:color-mix(in srgb,var(--bad) 40%,transparent)}
.fb b.h{display:block;font-size:14px;margin-bottom:2px}
.fb .ans{margin:6px 0;font-weight:600}
.fb ol,.fb ul{margin:6px 0;padding-left:20px}
.fb .rev{display:block;margin-top:6px;font-size:13px;color:var(--muted)}
.aside{display:grid;gap:10px}
.bubble{display:grid;grid-template-columns:52px minmax(0,1fr);gap:10px;align-items:start}
.bubble .txt{background:var(--surface);border:1px solid var(--line);border-radius:12px;padding:9px 12px;font-size:14px;line-height:1.45;position:relative}
.bubble .who{font-size:11px;letter-spacing:.08em;text-transform:uppercase;color:var(--muted);display:block;margin-bottom:2px;font-weight:600}
.scorebox{background:var(--surface);border:1px solid var(--line);border-radius:12px;padding:10px 12px;display:grid;grid-template-columns:1fr 1fr;gap:6px}
.scorebox div{font-size:12px;color:var(--muted)}
.scorebox b{display:block;font-family:var(--mono);font-size:20px;color:var(--ink)}
.combo{font-family:var(--mono);font-weight:700;color:var(--saffron)}
@media (max-width:820px){.aside{grid-template-columns:minmax(0,1fr)}.aside .bubble:nth-child(n+2){display:none}}

/* intro / result */
.center{max-width:720px;margin:20px auto 0}
.card{background:var(--surface);border:1px solid var(--line);border-radius:18px;padding:22px;box-shadow:var(--shadow)}
.card h2{font-size:clamp(24px,4.5vw,32px);font-weight:800;letter-spacing:-.01em;margin-bottom:4px}
.card .sub{color:var(--muted);margin:0 0 14px}
.facts{display:flex;gap:8px;flex-wrap:wrap;margin:10px 0 16px}
.bigstars{display:flex;gap:8px;justify-content:center;margin:10px 0 4px}
.bigstars svg{width:56px;height:56px}
@media (prefers-reduced-motion:no-preference){.bigstars svg.on{animation:pop .5s cubic-bezier(.3,1.6,.5,1) both}.bigstars svg:nth-child(2).on{animation-delay:.15s}.bigstars svg:nth-child(3).on{animation-delay:.3s}}
@keyframes pop{from{transform:scale(.2);opacity:0}to{transform:scale(1);opacity:1}}
.results{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:8px;margin:14px 0}
.revlist{margin:8px 0 0;padding-left:18px;font-size:14px}
.revlist li{margin:2px 0}
.newb{display:flex;gap:8px;flex-wrap:wrap;margin-top:10px}
.confirm{margin-top:10px;background:var(--badbg);border:1px solid var(--line);border-radius:10px;padding:10px 12px;font-size:14px}
.toggle{display:flex;align-items:center;gap:10px;font-size:14px}
.toggle input{width:18px;height:18px;accent-color:var(--teal)}
/* feedback detail */
.fb .why{margin:6px 0 0}
.fb .why .lbl{font-weight:600}
.fb .note{display:flex;gap:10px;align-items:flex-start;margin-top:10px;padding:8px 10px;border-radius:10px;background:color-mix(in srgb,var(--surface) 72%,transparent);border:1px dashed var(--line);font-size:14px;line-height:1.45}
.fb .note .tagk{flex:none;font-size:10.5px;letter-spacing:.08em;text-transform:uppercase;font-weight:600;color:var(--saffron);margin-top:2px}
.words{margin-top:10px;display:grid;gap:6px}
.words .wl{font-size:10.5px;letter-spacing:.08em;text-transform:uppercase;font-weight:600;color:var(--teal)}
.wd{font-size:13.5px;line-height:1.45;background:color-mix(in srgb,var(--surface) 72%,transparent);border-left:3px solid var(--teal);border-radius:0 8px 8px 0;padding:5px 10px}
.wd b{color:var(--teal)}
.scorebox{position:relative}
.floatpts{position:absolute;right:12px;top:-6px;font-family:var(--mono);font-weight:700;color:var(--good);pointer-events:none;opacity:0}
.av{display:block;line-height:0}
.soundbtn[aria-pressed="true"]{border-color:var(--teal);color:var(--teal)}

/* modes on home */
.modes{display:grid;grid-template-columns:repeat(auto-fit,minmax(230px,1fr));gap:12px;margin-top:18px}
.mode{text-align:left;background:var(--surface);border:1px solid var(--line);border-radius:14px;padding:14px;display:grid;grid-template-columns:auto minmax(0,1fr);gap:12px;align-items:center;box-shadow:var(--shadow);transition:transform .15s ease,border-color .15s}
.mode:hover{transform:translateY(-2px);border-color:var(--teal)}
.mode .ic{width:46px;height:46px;border-radius:12px;display:grid;place-items:center}
.mode .t{display:block;font-family:var(--display);font-weight:600;font-size:17px;line-height:1.2}
.mode .d{display:block;font-size:13px;color:var(--muted);line-height:1.35;margin-top:2px}

/* labs */
.labwrap{max-width:920px;margin:0 auto}
.labgrid{display:grid;grid-template-columns:repeat(auto-fill,minmax(250px,1fr));gap:12px;margin-top:12px}
.labcard{text-align:left;background:var(--surface);border:1px solid var(--line);border-radius:14px;padding:14px;display:grid;gap:6px;box-shadow:var(--shadow);transition:transform .15s ease,border-color .15s;min-width:0}
.labcard:hover{transform:translateY(-2px);border-color:var(--teal)}
.labcard .ep{font-family:var(--mono);font-size:11px;color:var(--muted);letter-spacing:.06em;display:flex;justify-content:space-between;gap:8px}
.labcard .t{font-family:var(--display);font-size:18px;font-weight:600;line-height:1.2}
.labcard .d{font-size:13.5px;color:var(--muted);line-height:1.4}
.labcard .done{color:var(--good);font-weight:600}
.pips{display:inline-flex;gap:3px}
.pips i{width:8px;height:8px;border-radius:50%;background:var(--line);display:block}
.pips i.on{background:var(--good)}
.lab{background:var(--surface);border:1px solid var(--line);border-radius:16px;padding:16px;box-shadow:var(--shadow);min-width:0}
.lab h4{font-family:var(--display);font-size:16px;font-weight:600;margin:14px 0 6px}
.lab h4:first-child{margin-top:0}
.ctrls{display:flex;flex-wrap:wrap;gap:10px 18px;align-items:flex-end;margin:0 0 12px}
.ctrl{display:block;font-size:13px;min-width:140px;flex:1 1 150px;color:var(--muted)}
.ctrl input[type=text],.ctrl select{display:block;width:100%;margin-top:4px}
.ctrl>.seg{display:flex;width:max-content;max-width:100%;margin-top:4px}
.ctrl b{color:var(--ink);font-family:var(--mono);font-weight:700}
.ctrl input[type=range]{display:block;width:100%;accent-color:var(--teal);margin:6px 0 2px}
.seg{display:inline-flex;border:1px solid var(--line);border-radius:10px;overflow:hidden;flex-wrap:wrap;background:var(--surface)}
.seg button{border:0;background:transparent;padding:7px 12px;font-size:14px;border-right:1px solid var(--line)}
.seg button:last-child{border-right:0}
.seg button.on{background:var(--teal);color:var(--onaccent)}
.svgbox{background:var(--surface2);border:1px solid var(--line);border-radius:12px;overflow:hidden;line-height:0}
.svgbox svg{display:block;width:100%;height:auto;max-height:380px;touch-action:manipulation}
.readout{display:flex;gap:8px;flex-wrap:wrap;margin-top:10px}
.readout .chip b{font-family:var(--mono)}
.formula{font-family:var(--mono);font-size:14px;background:var(--surface2);border:1px solid var(--line);border-radius:10px;padding:8px 12px;margin-top:10px;overflow-x:auto;white-space:nowrap}
.booksays{font-size:14px;line-height:1.5;background:color-mix(in srgb,var(--leaf) 11%,transparent);border-left:3px solid var(--leaf);border-radius:0 10px 10px 0;padding:8px 12px;margin:10px 0 12px}
.mission{margin-top:14px;background:var(--surface);border:1px solid var(--line);border-radius:14px;padding:12px 16px}
.mission h4{margin:0 0 8px;font-family:var(--display);font-size:17px;font-weight:600;display:flex;justify-content:space-between;gap:8px;align-items:baseline}
.mission ul{list-style:none;margin:0;padding:0;display:grid;gap:6px;font-size:14.5px}
.mission li{display:flex;gap:10px;align-items:flex-start}
.mission .ck{flex:none;width:20px;height:20px;border-radius:50%;border:1.5px solid var(--line);display:grid;place-items:center;margin-top:1px}
.mission li.done .ck{background:var(--good);border-color:var(--good)}
.mission li.done span:last-child{color:var(--muted);text-decoration:line-through;text-decoration-color:color-mix(in srgb,var(--muted) 50%,transparent)}
.lablog{font-family:var(--mono);font-size:12.5px;line-height:1.5;background:var(--surface2);border:1px solid var(--line);border-radius:10px;padding:8px 10px;height:150px;overflow:auto;white-space:pre-wrap;margin-top:10px}
.lablog .dim{color:var(--muted)}
.lablog .bad{color:var(--bad)}
.lablog .good{color:var(--good)}
.code{font-family:var(--mono);font-size:12.5px;line-height:1.55;background:#14231C;color:#D8E8DE;border-radius:10px;padding:10px 0;overflow-x:auto;margin:0}
.code div{padding:0 12px;white-space:pre}
.code div.hl{background:rgba(242,193,78,.22);box-shadow:inset 3px 0 0 #F2C14E}
.serial{font-family:var(--mono);font-size:13px;background:#0F1A15;color:#9EE6B8;border-radius:10px;padding:8px 12px;height:120px;overflow:auto;white-space:pre-wrap;margin:0}
.labcols{display:grid;grid-template-columns:minmax(0,1.2fr) minmax(0,1fr);gap:14px;align-items:start}
@media (max-width:760px){.labcols{grid-template-columns:minmax(0,1fr)}}
.sortq{background:var(--surface2);border:1.5px solid var(--line);border-radius:14px;padding:16px;font-size:17px;line-height:1.45;font-weight:500;margin-bottom:10px}
.choices{display:flex;gap:8px;flex-wrap:wrap}
.choices .btn{flex:1 1 120px;justify-content:center}
.fbmini{font-size:14.5px;line-height:1.5;border-radius:10px;padding:9px 12px;margin-top:10px;border:1px solid var(--line)}
.fbmini.ok{background:var(--goodbg);border-color:color-mix(in srgb,var(--good) 40%,transparent)}
.fbmini.no{background:var(--badbg);border-color:color-mix(in srgb,var(--bad) 40%,transparent)}
.cluelist{margin:0 0 10px;padding-left:20px;display:grid;gap:4px}
.cluelist li{font-size:15.5px}
.osi{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:10px}
.osi .colh{font-size:12px;letter-spacing:.08em;text-transform:uppercase;color:var(--muted);text-align:center;margin-bottom:4px;font-weight:600}
.osi .cell{border:1.5px solid var(--line);border-radius:8px;padding:5px 8px;font-size:13px;background:var(--surface);display:flex;justify-content:space-between;gap:6px;min-height:32px;align-items:center;transition:background .2s,border-color .2s}
.osi .cell.media{background:color-mix(in srgb,var(--saffron) 8%,var(--surface))}
.osi .cell.blank{visibility:hidden}
.osi .cell.cur{border-color:var(--teal);background:color-mix(in srgb,var(--teal) 16%,var(--surface));box-shadow:0 0 0 3px color-mix(in srgb,var(--teal) 22%,transparent)}
.osi .cell.past{border-color:color-mix(in srgb,var(--teal) 45%,var(--line))}
.osi .cell .n{font-family:var(--mono);font-size:11px;color:var(--muted)}
.osi .stack{display:grid;gap:5px}
.pdu{display:flex;justify-content:center;margin:12px 0 4px;overflow-x:auto}
.pdu .w{border:1.5px solid var(--teal);border-radius:9px;padding:4px 6px 4px;display:flex;align-items:center;gap:6px;background:color-mix(in srgb,var(--teal) 6%,transparent);font-size:12px;white-space:nowrap}
.pdu .w>.lb{font-family:var(--mono);font-size:11px;color:var(--teal);font-weight:700}
.pdu .core{background:var(--gold);color:#1B2A24;border-radius:6px;padding:3px 8px;font-weight:600;font-size:13px}
.stackviz{display:grid;gap:6px}
.stackviz .ly{border-radius:10px;padding:10px 12px;display:flex;justify-content:space-between;gap:10px;align-items:center;font-size:14px;border:1.5px solid var(--line);transition:background .25s,border-color .25s}
.stackviz .ly.you{background:color-mix(in srgb,var(--saffron) 16%,var(--surface));border-color:color-mix(in srgb,var(--saffron) 50%,var(--line))}
.stackviz .ly.prov{background:color-mix(in srgb,var(--teal) 14%,var(--surface));border-color:color-mix(in srgb,var(--teal) 45%,var(--line))}
.stackviz .who{font-size:12px;font-weight:600;white-space:nowrap}
.mgrid{display:grid;grid-template-columns:auto minmax(0,1fr) minmax(0,1fr);gap:6px;align-items:stretch;font-size:13px}
.mgrid .h{font-size:11.5px;color:var(--muted);text-align:center;align-self:end;line-height:1.25}
.mgrid .rh{font-size:11.5px;color:var(--muted);writing-mode:horizontal-tb;align-self:center;max-width:90px;line-height:1.25}
.mcell{border-radius:12px;padding:10px;display:grid;gap:6px;justify-items:center;text-align:center;border:1.5px solid var(--line)}
.mcell.g{background:var(--goodbg)} .mcell.b{background:var(--badbg)}
.mcell .nm{font-weight:600;font-size:13px}
.mcell .v{font-family:var(--mono);font-size:26px;font-weight:700;line-height:1}
.step{display:inline-flex;gap:6px}
.step button{width:32px;height:32px;border-radius:8px;border:1px solid var(--line);background:var(--surface);font-size:18px;line-height:1;display:grid;place-items:center}

/* flashcards */
.fctabs{display:flex;gap:8px;flex-wrap:wrap;margin:10px 0}
.fcgrid{display:grid;grid-template-columns:repeat(auto-fill,minmax(190px,1fr));gap:10px}
.fcch{text-align:left;background:var(--surface);border:1px solid var(--line);border-radius:12px;padding:10px 12px;display:grid;gap:4px;min-width:0}
.fcch:hover{border-color:var(--teal)}
.fcch .ep{font-family:var(--mono);font-size:11px;color:var(--muted)}
.fcch .t{font-weight:600;font-size:14px;line-height:1.25}
.flipwrap{perspective:1400px;max-width:600px;margin:10px auto 0}
.flip{display:grid;width:100%;border:0;background:none;padding:0;text-align:left;transform-style:preserve-3d;transition:transform .55s cubic-bezier(.3,.7,.3,1);cursor:pointer}
.flip.on{transform:rotateY(180deg)}
.face{grid-area:1/1;backface-visibility:hidden;-webkit-backface-visibility:hidden;background:var(--surface);border:1px solid var(--line);border-radius:18px;box-shadow:var(--shadow);padding:22px;display:flex;flex-direction:column;justify-content:center;gap:10px;min-height:250px;min-width:0}
.face.back{transform:rotateY(180deg);background:color-mix(in srgb,var(--teal) 7%,var(--surface))}
.face .kind{font-size:11px;letter-spacing:.1em;text-transform:uppercase;color:var(--muted)}
.face .big{font-family:var(--display);font-size:clamp(24px,5vw,34px);font-weight:800;line-height:1.15;overflow-wrap:anywhere}
.face .mid{font-size:18px;line-height:1.45;font-weight:500}
.face .tap{font-size:12.5px;color:var(--muted);margin-top:auto}
.face .ansl{font-weight:600;color:var(--teal)}
.fcbtns{display:flex;gap:10px;justify-content:center;margin-top:14px;flex-wrap:wrap}
.fcbtns .btn{min-width:140px;justify-content:center}

/* lightning */
.ltop{display:flex;align-items:center;gap:14px;margin:14px 0 8px;flex-wrap:wrap}
.lclock{font-family:var(--mono);font-weight:700;font-size:30px;font-variant-numeric:tabular-nums;min-width:3.2ch}
.lclock.low{color:var(--bad)}
.lscore{font-family:var(--mono);font-weight:700;font-size:22px;margin-left:auto}
.ltrack{height:8px;background:var(--surface);border:1px solid var(--line);border-radius:99px;overflow:hidden;margin-bottom:14px}
.ltrack i{display:block;height:100%;background:var(--saffron)}
.lflash{min-height:24px;font-size:14px;margin-top:10px;font-weight:500}
.lflash.ok{color:var(--good)} .lflash.no{color:var(--bad)}
.misslist{display:grid;gap:10px;margin-top:10px}
.miss{background:var(--surface2);border:1px solid var(--line);border-radius:12px;padding:10px 12px;font-size:14px;line-height:1.5}
.miss .qq{font-weight:600}
.miss .aa{color:var(--good);font-weight:600;margin:2px 0}

/* celebrations */
.toast{position:fixed;left:50%;bottom:22px;transform:translateX(-50%);background:var(--ink);color:var(--bg);padding:10px 16px;border-radius:12px;z-index:70;font-size:14px;box-shadow:0 6px 24px rgba(0,0,0,.25);max-width:calc(100vw - 32px);text-align:center}
canvas.confetti{position:fixed;inset:0;width:100vw;height:100vh;pointer-events:none;z-index:60}
.grow{max-width:230px;margin:6px auto 0}
.grow svg{width:100%;height:auto;display:block;border-radius:14px;border:1px solid var(--line)}
.plant{transform-box:fill-box;transform-origin:50% 100%}
@keyframes shake{0%,100%{transform:translateX(0)}20%{transform:translateX(-6px)}40%{transform:translateX(6px)}60%{transform:translateX(-4px)}80%{transform:translateX(3px)}}
@keyframes bounce{0%,100%{transform:translateY(0)}30%{transform:translateY(-9px)}55%{transform:translateY(0)}75%{transform:translateY(-3px)}}
@keyframes rise{0%{opacity:0;transform:translateY(8px)}15%{opacity:1}100%{opacity:0;transform:translateY(-30px)}}
@keyframes growin{from{transform:scaleY(.15);opacity:.3}to{transform:scaleY(1);opacity:1}}
@keyframes fadein{from{opacity:0;transform:translateY(6px)}to{opacity:1;transform:none}}
@keyframes toastin{from{opacity:0;transform:translate(-50%,10px)}to{opacity:1;transform:translate(-50%,0)}}
@keyframes blink{0%,100%{opacity:1}50%{opacity:.25}}
@media (prefers-reduced-motion:no-preference){
 .av.ok{animation:bounce .6s ease}
 .av.no{animation:shake .45s ease}
 .lives svg.lost{animation:shake .55s ease}
 .fb,.fbmini{animation:fadein .25s ease}
 .grow .plant{animation:growin 1s cubic-bezier(.3,1.4,.5,1) both}
 .floatpts{animation:rise 1.2s ease-out forwards}
 .toast{animation:toastin .25s ease}
 .shake{animation:shake .45s ease}
 .blink{animation:blink .5s linear infinite}
}
@media (prefers-reduced-motion:reduce){.floatpts{opacity:1}}
@media (max-width:520px){.qtext{font-size:17px}.qcard{padding:14px}.progress{grid-template-columns:repeat(3,minmax(0,1fr));gap:6px}.stat .v{font-size:18px}.hero{grid-template-columns:1fr}.results{grid-template-columns:repeat(3,minmax(0,1fr))}}
@media (prefers-reduced-motion:reduce){*{transition:none!important;animation:none!important}}