/* Muddlework game screen. Tokens, sizes and timings follow specification section 3;
   most of the look is carried over from reference/preview.html. */

@font-face{font-family:"Bricolage Grotesque";font-weight:700;font-display:swap;src:url(../fonts/bricolage-grotesque-latin-700-normal.woff2) format("woff2")}
@font-face{font-family:"Bricolage Grotesque";font-weight:800;font-display:swap;src:url(../fonts/bricolage-grotesque-latin-800-normal.woff2) format("woff2")}
@font-face{font-family:"Atkinson Hyperlegible";font-weight:400;font-display:swap;src:url(../fonts/atkinson-hyperlegible-latin-400-normal.woff2) format("woff2")}
@font-face{font-family:"Atkinson Hyperlegible";font-weight:700;font-display:swap;src:url(../fonts/atkinson-hyperlegible-latin-700-normal.woff2) format("woff2")}
@font-face{font-family:"Newsreader";font-style:italic;font-weight:400;font-display:swap;src:url(../fonts/newsreader-latin-400-italic.woff2) format("woff2")}

:root{
  --ground:#EEF0F3; --surface:#FFFFFF; --ink:#1F2A44; --ink-muted:#5A6475; --line:#CBD2DB;
  --slab:#1F2A44; --chalk:#F6F4EF; --mustard:#E8B931; --teal:#2F8F83; --coral:#EF6F5E;
  --on-accent:#1F2A44; --focus:#1F2A44; --tint:#FBF3D9; --tile-border:#FFFFFF;
  --display:"Bricolage Grotesque","Trebuchet MS",sans-serif;
  --body:"Atkinson Hyperlegible","Segoe UI",system-ui,sans-serif;
  --voice:"Newsreader",Georgia,serif;
  --board:min(calc(100vw - 32px),420px);
  --gap:5px;
  --tile:calc((var(--board) - 3 * var(--gap)) / 4);
  /* section 3, Motion */
  --slide:.16s;
  --t-appear:.5s; --t-flow-in:.4s; --t-flow:.8s; --flow-times:2; --t-hop:.6s; --t-grow:1.8s; --t-ring:.7s;
}
@media (prefers-color-scheme: dark){
  :root{--ground:#141B2B;--surface:#1F2A44;--ink:#EEF0F3;--ink-muted:#A7B0BE;--line:#34405A;--slab:#2E3B5C;
    --mustard:#F0C74A;--teal:#4FB3A5;--coral:#F4877A;--focus:#F0C74A;--tint:#2A2F33;color-scheme:dark}
}
*,*::before,*::after{box-sizing:border-box}
[hidden]{display:none!important}
html{-webkit-text-size-adjust:100%}
body{margin:0;background:var(--ground);color:var(--ink);font-family:var(--body);font-size:17px;line-height:1.55;-webkit-font-smoothing:antialiased}
button,input,textarea{font:inherit;color:inherit}
button{-webkit-tap-highlight-color:transparent}
:focus-visible{outline:3px solid var(--focus);outline-offset:2px}
.artdefs{position:absolute;width:0;height:0;overflow:hidden}
.wrap{max-width:452px;margin:0 auto;padding-inline:16px;padding-block:max(14px,env(safe-area-inset-top)) 48px}
.loading{text-align:center;color:var(--ink-muted);margin-top:40px}

/* header */
header{display:flex;align-items:center;justify-content:space-between;gap:12px;padding-bottom:12px;border-bottom:1px solid var(--line)}
.brandrow{display:flex;align-items:center;gap:10px}
.logo{width:40px;height:40px;flex:0 0 auto}
.logo svg{display:block;width:100%;height:100%}
.brand{font-family:var(--display);font-weight:800;font-size:28px;letter-spacing:-0.02em;line-height:1}
.brand small{display:block;font-family:var(--body);font-weight:400;font-size:13px;letter-spacing:0;color:var(--ink-muted);margin-top:4px}
.icons{display:flex;align-items:center;gap:4px}
.ib{width:44px;height:44px;border:0;background:none;border-radius:12px;display:grid;place-items:center;cursor:pointer}
.ib:hover{background:var(--surface)}
.ib svg{width:24px;height:24px;stroke:var(--ink);fill:none;stroke-width:2;stroke-linecap:round;stroke-linejoin:round}
.ib[aria-pressed="false"] .on{display:none}.ib[aria-pressed="true"] .off{display:none}

/* practice controls: test builds only (section 15, Environments) */
.practice{margin:14px 0 0;padding:10px;border:2px dashed var(--line);border-radius:16px}
.samplehead{margin:0 0 8px;font-size:13px;color:var(--ink-muted)}
.daypick{display:flex;align-items:center;gap:6px;flex-wrap:wrap}
.daypick .btn.small{min-width:44px;font-size:18px;line-height:1}
#toToday{font-size:14px}
.playdate{flex:1 1 140px;text-align:center;font-weight:700;font-size:15px}
.testrow{display:flex;align-items:center;justify-content:space-between;gap:8px;flex-wrap:wrap;margin-top:8px}
.testline{margin:0;font-size:13px;color:var(--ink-muted);font-variant-numeric:tabular-nums;min-width:0}
.btn.small{min-height:44px;padding:6px 12px;font-size:14px}

/* meta row and title */
.meta{display:flex;align-items:center;justify-content:space-between;gap:8px;margin:18px 0 6px;flex-wrap:wrap}
.metal{display:flex;align-items:center;gap:10px;flex-wrap:wrap}
.chip{display:inline-flex;align-items:center;font-size:14px;font-weight:700;padding:4px 12px;border-radius:999px;color:#1F2A44;background:#DCE2E9}
.boardno{font-size:14px;color:var(--ink-muted)}
.diff{font-size:14px;font-weight:700}
#clockWrap{margin-left:auto}
.clockbtn{font-size:14px;background:none;border:1.5px solid var(--line);border-radius:999px;padding:3px 10px 3px 12px;min-height:44px;min-width:44px;cursor:pointer;display:inline-flex;align-items:center;gap:7px;font-variant-numeric:tabular-nums}
.clockbtn .pz{display:inline-flex;gap:2.5px}.clockbtn .pz i{width:3px;height:11px;background:var(--ink);border-radius:1px}
.clockbtn:disabled{border-color:transparent;cursor:default;padding:3px 0}.clockbtn:disabled .pz{display:none}
h1{font-family:var(--display);font-weight:700;font-size:28px;line-height:1.15;letter-spacing:-0.01em;margin:0 0 12px;text-wrap:balance}

/* level choice */
.levels{display:flex;align-items:center;justify-content:center;gap:10px;margin:0 0 6px}
.levels .lbl{font-size:14px;color:var(--ink-muted)}
.seg{display:inline-flex;border:2px solid var(--line);border-radius:12px;overflow:hidden;background:var(--surface)}
.seg button{min-height:44px;min-width:72px;border:0;background:none;padding:6px 14px;font-weight:700;font-size:15px;cursor:pointer}
.seg button+button{border-left:2px solid var(--line)}
.seg button[aria-pressed="true"]{background:var(--ink);color:var(--ground)}
.levels.fixed .seg{opacity:.6}.levels.fixed .seg button{cursor:default}
.levelnote{text-align:center;font-size:13px;color:var(--ink-muted);margin:0 0 12px;min-height:20px}

/* the board */
.stage{position:relative;width:var(--board);height:var(--board);margin:0 auto}
.grid{position:absolute;inset:0;background:var(--slab);border-radius:16px;touch-action:none;user-select:none;-webkit-user-select:none;transition:opacity .4s}
.grid .t{position:absolute;left:0;top:0;width:var(--tile);height:var(--tile);border:0;padding:0;border-radius:6px;overflow:hidden;cursor:pointer;background:#1F2A44;
  transform:translate(calc(var(--c) * (var(--tile) + var(--gap))),calc(var(--r) * (var(--tile) + var(--gap))));transition:transform var(--slide) ease-out}
.grid .t svg{display:block;width:100%;height:100%;pointer-events:none}
.grid .t::after{content:"";position:absolute;inset:0;border:2.5px solid var(--tile-border);border-radius:6px;pointer-events:none}
.grid .t .n{position:absolute;left:5px;top:3px;font-size:12px;font-weight:700;color:#1F2A44;background:#F6F4EF;border-radius:4px;padding:0 4px;line-height:16px;display:none}
.grid.nums .t .n{display:block}
.grid .t:focus-visible{outline-offset:-4px;z-index:2}
.full,.peek{position:absolute;inset:0;border-radius:16px;overflow:hidden;opacity:0;pointer-events:none;transition:opacity .35s}
.full svg,.peek svg{display:block;width:100%;height:100%}
.peek.on{opacity:1;pointer-events:auto;cursor:pointer}
.full.on{opacity:1;pointer-events:auto}
.paused{position:absolute;inset:-1px;border-radius:16px;background:var(--slab);color:#F6F4EF;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:10px;z-index:5;text-align:center;padding:20px}
.paused strong{font-family:var(--display);font-size:30px}
.paused p{margin:0 0 6px;font-size:15px;opacity:.85}

/* the reveal (section 4): entrance and delay come with the board, durations live here */
.full .before{opacity:1;transition:opacity .8s ease .3s}
.full.revealed .before{opacity:0}
.full .reveal .anim{opacity:0}
.full.revealed .reveal .appear{animation:pop var(--t-appear) ease-out var(--d,0s) forwards}
.full.revealed .reveal .flow{animation:pop var(--t-flow-in) ease-out var(--d,0s) forwards,flow var(--t-flow) linear var(--d,0s) var(--flow-times)}
.full.revealed .reveal .hop{transform-box:fill-box;transform-origin:50% 100%;animation:hop var(--t-hop) cubic-bezier(.3,1.6,.5,1) var(--d,0s) forwards}
.full.revealed .reveal .grow{transform-box:fill-box;transform-origin:0 50%;animation:grow var(--t-grow) cubic-bezier(.6,0,.3,1) var(--d,0s) forwards}
.full.revealed .reveal .ring{transform-box:fill-box;transform-origin:50% 50%;animation:ring var(--t-ring) ease-out var(--d,0s) 1}
.full.still .before{opacity:0;transition:none}
.full.still .reveal .anim{opacity:1;transform:none;animation:none}
.full.still .reveal .ring{opacity:0}
@keyframes pop{from{opacity:0}to{opacity:1}}
@keyframes flow{from{stroke-dashoffset:18}to{stroke-dashoffset:0}}
@keyframes hop{0%{opacity:0;transform:translateY(-14px) scale(.5)}70%{opacity:1;transform:translateY(1px) scale(1.08)}100%{opacity:1;transform:none}}
@keyframes grow{0%{opacity:1;transform:scaleX(.158)}100%{opacity:1;transform:scaleX(1)}}
@keyframes ring{0%{opacity:0;transform:scale(.5)}35%{opacity:1}100%{opacity:0;transform:scale(1.9)}}

/* tools, hint, promise panel */
.tools{display:flex;gap:8px;justify-content:center;margin:14px 0 4px;flex-wrap:wrap}
.btn{min-height:44px;border-radius:12px;border:2px solid var(--line);background:var(--surface);padding:8px 16px;font-weight:700;font-size:15px;cursor:pointer;touch-action:manipulation}
.btn[aria-pressed="true"]{border-color:var(--ink)}
.btn.primary{background:var(--mustard);border-color:var(--mustard);color:var(--on-accent)}
.hint{text-align:center;font-size:15px;color:var(--ink-muted);margin:6px 0 0;min-height:24px}
.teaser{display:flex;align-items:flex-start;gap:10px;margin:16px auto 0;max-width:var(--board);padding:10px 14px;border-radius:14px;background:var(--surface);border-left:4px solid var(--mustard);font-size:15px;line-height:1.4}
.teaser .qm{font-family:var(--display);font-weight:800;font-size:34px;line-height:.9;color:var(--mustard);flex:0 0 auto;margin-top:2px}
.teaser b{font-family:var(--voice);font-style:italic;font-weight:400;font-size:18px}

/* Look again and the reveal card */
.look{margin:14px auto 0;max-width:var(--board);text-align:center;font-size:17px;line-height:1.4;opacity:0;transform:translateY(6px);transition:opacity .6s,transform .6s}
.look.on{opacity:1;transform:none}
.look b{display:block;font-family:var(--display);font-size:13px;letter-spacing:.08em;text-transform:uppercase;color:var(--teal);margin-bottom:2px}
.card{background:var(--surface);border-radius:24px;padding:22px 20px;margin-top:22px}
.card.rise{animation:up .5s ease-out}
@keyframes up{from{transform:translateY(16px);opacity:0}to{transform:none;opacity:1}}
.winrow{display:flex;align-items:center;justify-content:space-between;gap:12px;flex-wrap:wrap;margin:0 0 6px}
.winrow h2{font-family:var(--display);font-weight:800;font-size:30px;line-height:1;margin:0}
.winrow .meta2{font-size:15px;color:var(--ink-muted);margin:4px 0 0;font-variant-numeric:tabular-nums}
.badge{display:inline-flex;align-items:baseline;gap:4px;background:var(--mustard);color:var(--on-accent);border-radius:14px;padding:8px 14px;font-weight:700}
.badge .n{font-family:var(--display);font-size:26px;font-weight:800;line-height:1;font-variant-numeric:tabular-nums}
.badge.replay{background:var(--ground);color:var(--ink);font-size:14px}
.sum{font-size:14px;color:var(--ink-muted);margin:0 0 16px;font-variant-numeric:tabular-nums}
.quote{position:relative;background:var(--slab);color:#F6F4EF;border-radius:18px;padding:30px 20px 20px;margin:0 0 18px}
.quote::before{content:"\201C";position:absolute;left:14px;top:-14px;font-family:var(--display);font-weight:800;font-size:72px;line-height:1;color:var(--mustard)}
.saying{font-family:var(--voice);font-style:italic;font-weight:400;font-size:24px;line-height:1.3;margin:0;color:#F6F4EF}
.label{font-family:var(--display);font-size:13px;letter-spacing:.08em;text-transform:uppercase;color:var(--ink-muted);margin:0 0 6px}
.finding{margin:0 0 10px}
.srcbox{border-top:1px solid var(--line);margin-top:14px;padding-top:12px}
.srcbox a{display:inline-flex;align-items:flex-start;gap:6px;font-weight:700;color:var(--ink);text-underline-offset:3px;line-height:1.35;min-height:44px;padding-top:10px}
.srcbox a svg{flex:0 0 auto;width:18px;height:18px;margin-top:2px;stroke:currentColor;fill:none;stroke-width:2;stroke-linecap:round;stroke-linejoin:round}
.srcbox p{margin:0;font-size:13px;color:var(--ink-muted)}
.added{display:flex;align-items:center;gap:8px;flex-wrap:wrap;margin:14px 0 0;font-size:15px;font-weight:700;color:var(--teal)}
.added svg{width:18px;height:18px;stroke:currentColor;fill:none;stroke-width:2;stroke-linecap:round;stroke-linejoin:round}
.linkbtn{border:0;background:none;padding:0;font-weight:700;color:var(--ink);text-decoration:underline;text-underline-offset:3px;cursor:pointer;min-height:44px}
.actions{display:flex;gap:8px;flex-wrap:wrap;margin-top:14px;align-items:center}
.toast{font-size:14px;font-weight:700;color:var(--teal)}
.nextline{font-size:14px;color:var(--ink-muted);font-variant-numeric:tabular-nums;margin:12px 0 0}
textarea.share{width:100%;min-height:110px;margin-top:10px;font-size:14px;border:1px solid var(--line);border-radius:10px;background:var(--ground);color:var(--ink);padding:10px}

.promoted{margin:-8px 0 16px;font-weight:700;color:var(--teal)}

/* My library */
.libhead{margin:16px 0 10px}
.libh{font-family:var(--display);font-weight:800;font-size:30px;line-height:1.05;margin:0 0 4px}
.libsub{color:var(--ink-muted);font-size:15px;margin:0 0 14px}
#libSearch{width:100%;min-height:44px;border:2px solid var(--line);border-radius:12px;background:var(--surface);color:var(--ink);padding:8px 12px;font-size:17px;margin:0 0 16px}
.shelf{margin:0 0 20px}
.shelf h3{display:flex;justify-content:space-between;align-items:baseline;font-family:var(--display);font-size:13px;letter-spacing:.08em;text-transform:uppercase;color:var(--ink-muted);margin:0 0 8px;border-bottom:1px solid var(--line);padding-bottom:6px}
.lesson{display:grid;grid-template-columns:76px minmax(0,1fr);gap:12px;background:var(--surface);border-radius:16px;padding:12px;margin-bottom:8px}
.lesson .thumb{width:76px;height:76px;border-radius:10px;overflow:hidden;background:var(--slab)}
.lesson .thumb svg{display:block;width:100%;height:100%}
.lsay{font-family:var(--voice);font-style:italic;font-size:19px;line-height:1.3;margin:0 0 4px}
.lmeta{font-size:13px;color:var(--ink-muted);margin:0}
.lesson summary{cursor:pointer;font-weight:700;font-size:15px;min-height:44px;display:flex;align-items:center}
.lesson details p{font-size:15px;margin:6px 0}
.lesson details a{font-weight:700;color:var(--ink);text-underline-offset:3px}
.empty,.missed{border:2px dashed var(--line);border-radius:16px;padding:14px;color:var(--ink-muted);font-size:15px;margin:0 0 16px}
.empty b{color:var(--ink)}
.cnt{display:inline-block;background:var(--mustard);color:var(--on-accent);border-radius:999px;min-width:22px;padding:0 6px;text-align:center;font-size:13px;line-height:20px;margin-left:4px}

/* stats screen (section 9) */
.sr-only{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap}
.view h3.label{margin:24px 0 8px}
.rankcard{display:flex;align-items:center;gap:16px;background:var(--surface);border-radius:20px;padding:18px}
.bigm{width:76px;height:76px;flex:0 0 auto}.bigm svg{display:block;width:100%;height:100%}
.rankcard p{margin:0}
.youare{font-size:15px;color:var(--ink-muted)}
.rankbig{font-family:var(--display);font-weight:800;font-size:30px;line-height:1.05;text-wrap:balance}
.rankpts{font-weight:700;font-variant-numeric:tabular-nums}
.since{font-size:14px;color:var(--ink-muted)}
.bar{height:12px;border-radius:999px;background:var(--line);overflow:hidden;margin:16px 0 6px}
.bar i{display:block;height:100%;background:var(--mustard);border-radius:999px;min-width:6px}
.nextrank{font-size:15px;color:var(--ink-muted);margin:0;font-variant-numeric:tabular-nums}
.ladder{list-style:none;padding:0;margin:0}
.ladder li{display:flex;justify-content:space-between;gap:10px;padding:8px 12px;border-radius:10px;font-size:16px;font-variant-numeric:tabular-nums}
.ladder li.me{background:var(--tint);font-weight:700}
.ladder li.gone{color:var(--ink-muted)}
.libbtn{margin-top:12px}
.week{display:grid;grid-template-columns:repeat(7,1fr);gap:6px;max-width:360px}
.day{display:flex;flex-direction:column;align-items:center;gap:4px}
.day .dot{width:30px;height:30px;border-radius:50%;border:2.5px solid var(--line);background:var(--surface)}
.day.done .dot{background:var(--mustard);border-color:var(--mustard)}
.day.now .dot{border-color:var(--ink)}
.day.skipped .dot{border-style:dashed}
.day .dl{font-size:13px;font-weight:700;color:var(--ink-muted)}
.weeknote{font-size:15px;color:var(--ink-muted);margin:8px 0 0}
.stats{display:grid;grid-template-columns:repeat(auto-fit,minmax(130px,1fr));gap:8px;margin:0}
.stat{background:var(--surface);border-radius:14px;padding:10px 12px}
.stat dt{font-size:13px;color:var(--ink-muted)}
.stat dd{margin:0;font-family:var(--display);font-weight:800;font-size:24px;font-variant-numeric:tabular-nums}
.moves{display:grid;gap:6px}
.mrow{display:grid;grid-template-columns:96px minmax(0,1fr) 28px;align-items:center;gap:8px;font-size:14px}
.mtrack{height:14px;background:var(--line);border-radius:999px;overflow:hidden}
.mbar{display:block;height:100%;background:var(--mustard)}
.mn{text-align:right;font-variant-numeric:tabular-nums}
.recent{list-style:none;padding:0;margin:0;background:var(--surface);border-radius:16px}
.recent li{display:flex;justify-content:space-between;align-items:center;gap:10px;padding:10px 14px}
.recent li+li{border-top:1px solid var(--line)}
.recent .rt{display:block;font-weight:700}
.recent .rd{display:block;font-size:13px;color:var(--ink-muted)}
.recent .rr{display:flex;gap:10px;align-items:baseline;font-size:15px;font-variant-numeric:tabular-nums;text-align:right;flex-wrap:wrap;justify-content:flex-end}
.howpts,.howto{padding-left:20px;margin:0}
.howpts li,.howto li{margin-bottom:6px}

/* when there is no board (section 2) */
.notice{display:flex;flex-direction:column;align-items:flex-start;gap:10px;background:var(--tint);border-radius:16px;padding:14px 16px;margin:16px 0}
.notice p{margin:0;font-weight:700}
.gamenote{font-weight:700;margin:16px 0 0}
/* beta over */
.soon{display:flex;flex-direction:column;align-items:center;text-align:center;padding:48px 0}
.soon .bigm{margin-bottom:16px}
.soonline{font-size:19px;margin:4px 0}

/* help and settings (section 3) */
.setrow{display:flex;justify-content:space-between;align-items:center;gap:12px;padding:8px 0;border-bottom:1px solid var(--line)}
.setrow small{display:block;font-size:13px;color:var(--ink-muted)}
.btn.toggle{min-width:72px}
.btn.toggle[aria-pressed="true"]{background:var(--ink);color:var(--ground);border-color:var(--ink)}
.privacy{font-size:15px;margin:0 0 10px}

@media (max-width:440px){header{gap:8px}.brandrow{gap:8px;min-width:0}.logo{width:34px;height:34px}.brand{font-size:24px}.brand small{display:none}.icons{gap:0}}
@media (max-width:360px){.brand{font-size:20px}.logo{width:30px;height:30px}}
@media (prefers-reduced-motion:reduce){
  *{transition:none!important;animation:none!important}
  .full.revealed .reveal .anim{opacity:1;transform:none}
  .full.revealed .reveal .ring{opacity:0}
  .look{opacity:1;transform:none}
}