/* Layout: a game table. Rules card on the left, the board on the right; stacks to one column on phones.
   Brand: PlayTheory blue #3C7FBC and charcoal #242424. Left plays blue, Right plays charcoal.
   Deliberately light-only: charcoal pieces need a light table to read. */
:root{
  --brand-blue:#3C7FBC; --charcoal:#242424;
  --bg:#eef1f5; --surface:#ffffff; --surface-2:#f4f6f9; --ink:#242424; --muted:#5f6670; --line:#d8dde5;
  --left:#3C7FBC; --left-soft:#dbe8f5; --on-left:#ffffff;
  --right:#242424; --right-soft:#e2e3e5; --on-right:#ffffff;
  --neutral:#3f9a6b; --neutral-soft:#d6eee1;
  --counter:#7a8291; --wood:#c8913a; --sq-lt:#ffffff; --sq-dk:#e6eaf0; --burn:#4a4f58;
  --f-display:"Nunito","Avenir Next",system-ui,sans-serif;
  --f-body:"Nunito Sans",system-ui,-apple-system,"Segoe UI",sans-serif;
  --f-mono:"IBM Plex Mono",ui-monospace,Menlo,monospace;
  --cell:clamp(30px,8.4vw,50px);
  color-scheme:light;
}

*{box-sizing:border-box}
[hidden]{display:none!important}
body{background:var(--bg);color:var(--ink);font-family:var(--f-body);font-size:15px;line-height:1.5;
  padding-block:20px 36px;padding-left:max(16px,env(safe-area-inset-left,0px));padding-right:max(16px,env(safe-area-inset-right,0px))}
button{font:inherit;color:inherit}
button:focus-visible,[role="button"]:focus-visible,input:focus-visible,select:focus-visible{outline:3px solid var(--ink);outline-offset:2px}
.app{max-width:1180px;margin:0 auto;display:flex;flex-direction:column;gap:20px}

/* header */
.top{display:flex;flex-wrap:wrap;gap:16px;align-items:center;justify-content:space-between}
.brand{display:flex;gap:14px;align-items:center}
.logo{width:52px;height:52px;flex:none}
.mk-b{fill:var(--brand-blue)} .mk-c{fill:var(--charcoal)}
h1 .wm-play{color:var(--brand-blue)}
h1{font-family:var(--f-display);font-weight:900;font-size:clamp(28px,4vw,38px);letter-spacing:-.015em;margin:0;line-height:1}
.tag{margin:5px 0 0;color:var(--muted);font-size:14px}
.players{display:flex;gap:10px;flex-wrap:wrap}
.pl{display:flex;align-items:center;gap:8px;background:var(--surface);border:1px solid var(--line);border-radius:999px;padding:4px 5px 4px 12px}
.pl .dot{width:12px;height:12px;border-radius:50%;flex:none}
.pL .dot{background:var(--left)} .pR .dot{background:var(--right)}
.role{font:500 11px var(--f-mono);text-transform:uppercase;letter-spacing:.09em;color:var(--muted)}
.pl input{border:0;background:var(--surface-2);border-radius:999px;padding:6px 11px;font:inherit;color:var(--ink);width:126px}

/* table */
.table{display:grid;grid-template-columns:minmax(0,330px) minmax(0,1fr);gap:20px;align-items:start}
@media (max-width:880px){.table{grid-template-columns:minmax(0,1fr)}}
.rules{background:var(--surface);border:1px solid var(--line);border-radius:14px;padding:20px 22px;display:flex;flex-direction:column;gap:12px;min-width:0}
.meta{display:flex;gap:8px;align-items:center;flex-wrap:wrap}
.chip{font:500 11px var(--f-mono);text-transform:uppercase;letter-spacing:.09em;padding:3px 9px;border-radius:999px;background:var(--surface-2);border:1px solid var(--line)}
.ref{font:500 12px var(--f-mono);color:var(--muted)}
.rules h2{font-family:var(--f-display);font-weight:800;font-size:30px;letter-spacing:-.02em;line-height:1.05;margin:0;text-wrap:balance}
.blurb{margin:0;color:var(--muted)}
.rules h3{font:500 11px var(--f-mono);text-transform:uppercase;letter-spacing:.09em;color:var(--muted);margin:4px 0 0}
.rules ol{margin:0;padding-left:20px;display:flex;flex-direction:column;gap:6px}
.win{margin:0;padding:10px 12px;border-radius:10px;background:var(--surface-2);font-size:14px}
.pick{display:flex;flex-direction:column;gap:6px;border-top:1px solid var(--line);padding-top:14px;margin-top:2px}
.pick label{font:500 11px var(--f-mono);text-transform:uppercase;letter-spacing:.09em;color:var(--muted)}
.pick select{font:inherit;color:var(--ink);background:var(--surface-2);border:1px solid var(--line);border-radius:8px;padding:8px 10px}

.play{background:var(--surface);border:1px solid var(--line);border-radius:14px;padding:16px;display:flex;flex-direction:column;gap:14px;min-width:0}
.bar{display:flex;flex-wrap:wrap;gap:12px;align-items:center;justify-content:space-between}
.turn{display:flex;align-items:center;gap:10px;font-family:var(--f-display);font-weight:600;font-size:20px;letter-spacing:-.01em}
.turn .dot{width:14px;height:14px;border-radius:50%}
.turn.t0 .dot{background:var(--left)} .turn.t1 .dot{background:var(--right)}
.turn small{font:500 11px var(--f-mono);text-transform:uppercase;letter-spacing:.09em;color:var(--muted)}
.first{display:flex;align-items:center;gap:6px}
.first span{font:500 11px var(--f-mono);text-transform:uppercase;letter-spacing:.09em;color:var(--muted);margin-right:2px}
.seg{border:1px solid var(--line);background:var(--surface);border-radius:999px;padding:5px 12px;cursor:pointer;font-size:13px}
.seg[aria-pressed="true"]#f0{background:var(--left);border-color:var(--left);color:var(--on-left)}
.seg[aria-pressed="true"]#f1{background:var(--right);border-color:var(--right);color:var(--on-right)}
.seg:disabled{cursor:not-allowed;opacity:.55}

.board{min-height:300px;display:flex;align-items:center;justify-content:flex-start;overflow-x:auto;padding:18px 12px;background:var(--surface-2);border-radius:10px;transition:box-shadow .2s}
.play[data-turn="0"] .board{box-shadow:inset 0 0 0 2px var(--left-soft)}
.play[data-turn="1"] .board{box-shadow:inset 0 0 0 2px var(--right-soft)}
.hint{margin:0;color:var(--muted);font-size:14px;min-height:1.5em}
.controls{display:flex;flex-wrap:wrap;gap:8px}
.btn{border:1px solid var(--line);background:var(--surface);border-radius:9px;padding:9px 15px;cursor:pointer;font-weight:500}
.btn:hover:not(:disabled){background:var(--surface-2)}
.btn:disabled{opacity:.5;cursor:not-allowed}
.btn.primary{background:var(--ink);color:var(--surface);border-color:var(--ink);margin-left:auto}
.btn.primary:hover{background:var(--ink);opacity:.9}
.btn.small{padding:6px 10px;font-size:13px}

.result{display:flex;flex-wrap:wrap;gap:12px;align-items:center;justify-content:space-between;padding:14px 16px;border-radius:12px;background:var(--surface-2);border:2px solid var(--line)}
.result.w0{border-color:var(--left);background:var(--left-soft)}
.result.w1{border-color:var(--right);background:var(--right-soft)}
.result b{font-family:var(--f-display);font-weight:800;font-size:24px;letter-spacing:-.02em;display:block;line-height:1.1}
.result p{margin:2px 0 0;font-size:14px}
.result .row{display:flex;gap:8px;flex-wrap:wrap}
footer{color:var(--muted);font-size:13px;text-align:center}
.foot-links{display:flex;flex-wrap:wrap;justify-content:center;gap:6px 18px;margin-bottom:8px;font-size:14px}
.foot-links a{color:var(--muted)}

/* ---------- pieces ---------- */
.sL{background:var(--left)} .sR{background:var(--right)} .sN{background:var(--neutral)}

/* heaps */
.heaps{display:flex;gap:clamp(14px,3vw,30px);align-items:flex-end;flex-wrap:wrap;justify-content:center}
.heap{display:flex;flex-direction:column;align-items:center;gap:8px}
.stack{display:flex;flex-direction:column-reverse;gap:4px;min-height:24px;justify-content:flex-start}
.ctr{width:28px;height:28px;border-radius:50%;border:0;background:var(--counter);padding:0;transition:opacity .12s,transform .12s}
.boxes .ctr{width:34px;height:24px;border-radius:4px;background:var(--wood)}
.ctr.ok{cursor:pointer}
.ctr:disabled{opacity:.45}
.ctr.doom{opacity:.2;transform:scale(.82)}
.ctr.lift{transform:translateY(-6px);outline:2px dashed var(--neutral);outline-offset:2px}
.heap-n{font:500 13px var(--f-mono);color:var(--muted);text-align:center}
.heap-n.endL{color:var(--left)} .heap-n.endR{color:var(--right)}

/* pins */
.pins{display:flex;gap:10px;align-items:flex-end;flex-wrap:wrap;justify-content:center}
.pin{width:18px;height:56px;border-radius:9px 9px 6px 6px;border:0;background:var(--counter);padding:0;cursor:pointer}
.pin.down{background:transparent;border:2px dashed var(--line);height:14px}
.pin.sel{background:var(--neutral);transform:translateY(-4px)}
.pin.pair{outline:2px dashed var(--neutral);outline-offset:3px}

/* chomp */
.chomp{display:grid;grid-template-columns:repeat(var(--w),var(--cell));gap:4px}
.bite{width:var(--cell);height:var(--cell);border-radius:5px;border:0;background:var(--wood);padding:0}
.bite.ok{cursor:pointer}
.bite.gone{background:transparent;outline:1px dashed var(--line);outline-offset:-1px}
.bite.poison{background:var(--counter);position:relative}
.bite.poison::after{content:"";position:absolute;inset:28%;border-radius:50%;border:3px solid var(--wood)}
.bite.doom{opacity:.25}

/* erosion */
.erosion{display:flex;gap:16px;flex-wrap:wrap;justify-content:center}
.ecard{background:var(--surface);border:1px solid var(--line);border-radius:12px;padding:14px;display:flex;flex-direction:column;gap:10px;width:min(230px,100%)}
.erow{display:flex;flex-direction:column;gap:5px}
.elab{font:500 12px var(--f-mono);color:var(--muted)}
.edots{display:flex;flex-wrap:wrap;gap:4px}
.ed{width:13px;height:13px;border-radius:50%}
.eL{background:var(--left)} .eR{background:var(--right)}

/* cherries */
.cherries{display:flex;gap:8px;flex-wrap:wrap;justify-content:center;align-items:center}
.cherry{width:40px;height:40px;border-radius:50%;border:0;padding:0;position:relative}
.cherry.ok{cursor:pointer;box-shadow:0 0 0 3px var(--surface),0 0 0 5px var(--ink)}
.cherry.doom{opacity:.2}

/* toppling dominoes */
.dominoes{display:flex;gap:8px;align-items:flex-end;flex-wrap:wrap;justify-content:center}
.dom{width:30px;height:78px;border-radius:5px;position:relative;display:flex;transition:transform .15s,opacity .15s;border:2px solid transparent}
.dom.dL{background:var(--left)} .dom.dR{background:var(--right)} .dom.dN{background:var(--neutral)}
.dom .half{flex:1;border:0;background:transparent;padding:0;cursor:pointer;color:var(--on-left);font-weight:700;opacity:0}
.dom.dR .half{color:var(--on-right)}
.dom .half:hover,.dom .half:focus-visible{opacity:1;background:color-mix(in srgb,var(--surface) 22%,transparent)}
.dom.ok{border-color:var(--ink)}
.dom.fallL{transform:rotate(-14deg);opacity:.35;transform-origin:bottom left}
.dom.fallR{transform:rotate(14deg);opacity:.35;transform-origin:bottom right}

/* grids */
.grid{display:grid;grid-template-columns:repeat(var(--c),var(--cell));gap:4px}
.tile{width:var(--cell);height:var(--cell);border-radius:6px;background:var(--surface);border:1px solid var(--line);padding:0;position:relative}
button.tile:not(:disabled){cursor:pointer}
.tile.block{background:transparent;border:1px dashed var(--line)}
.tile.piece.oL{background:var(--left);border-color:var(--left)}
.tile.piece.oR{background:var(--right);border-color:var(--right)}
.tile.piece.oN{background:var(--neutral);border-color:var(--neutral)}
.tile.kV1{border-bottom-left-radius:0;border-bottom-right-radius:0}
.tile.kV1::after{content:"";position:absolute;left:-1px;right:-1px;bottom:-6px;height:6px;background:inherit}
.tile.kV2{border-top-left-radius:0;border-top-right-radius:0}
.tile.kH1{border-top-right-radius:0;border-bottom-right-radius:0}
.tile.kH1::after{content:"";position:absolute;top:-1px;bottom:-1px;right:-6px;width:6px;background:inherit}
.tile.kH2{border-top-left-radius:0;border-bottom-left-radius:0}
.tile.gL{background:var(--left-soft);border-color:var(--left)}
.tile.gR{background:var(--right-soft);border-color:var(--right)}
.tile.sel{background:var(--neutral);border-color:var(--neutral)}
.tile.cand{background:var(--neutral-soft);border-color:var(--neutral)}

.board-grid{gap:0;border:2px solid var(--line);border-radius:8px;overflow:hidden}
.sqr{width:var(--cell);height:var(--cell);background:var(--sq-lt);display:grid;place-items:center;position:relative}
.sqr.dk{background:var(--sq-dk)}
.sqr.burn{background:var(--burn)}
.stone{width:72%;height:72%;border-radius:50%;border:0;padding:0;display:block}
button.stone{cursor:pointer;box-shadow:0 0 0 2px var(--surface-2),0 0 0 4px var(--ink)}
.stone.sel{box-shadow:0 0 0 3px var(--surface-2),0 0 0 6px var(--neutral);transform:scale(1.05)}
.queen{width:78%;height:78%;border-radius:50%;border:0;padding:0;display:grid;place-items:center;color:var(--on-left);font-size:calc(var(--cell)*.48);line-height:1;font-variant-emoji:text}
button.queen{cursor:pointer;box-shadow:0 0 0 2px var(--surface-2),0 0 0 4px var(--ink)}
.queen.sR{color:var(--on-right)}
.queen.sel{box-shadow:0 0 0 3px var(--surface-2),0 0 0 6px var(--neutral)}
.tgt{position:absolute;inset:0;border:0;background:transparent;cursor:pointer;display:grid;place-items:center;padding:0}
.tgt::before{content:"";width:30%;height:30%;border-radius:50%;background:var(--neutral);opacity:.75}
.tgt.cap::before{width:86%;height:86%;background:transparent;border:3px solid var(--neutral);position:absolute}
.tgt .stone{opacity:.8}
.tgt.arrow::before{border-radius:3px;width:40%;height:40%;background:var(--burn);opacity:.55}
.tgt:hover::before,.tgt:focus-visible::before{opacity:1}

/* strips */
.strips{display:flex;flex-direction:column;gap:12px;align-items:center}
.strip{display:flex;gap:4px;padding:6px;border-radius:10px;background:var(--surface);border:1px solid var(--line)}
.sq{width:var(--cell);height:var(--cell);border-radius:6px;background:var(--surface-2);display:grid;place-items:center;position:relative}
.sq .stone{width:74%;height:74%}
.sq.chg .stone{opacity:.3}
.ghost{position:absolute;width:74%;height:74%;border-radius:50%;opacity:.55;outline:2px dashed var(--ink);outline-offset:-2px}
.sq .num{position:absolute;top:2px;left:5px;font:500 10px var(--f-mono);color:var(--muted)}
.sq .tgt::before{width:26%;height:26%}

/* svg boards */
.svgb{width:100%;height:auto;max-width:var(--mw,560px);display:block;overflow:visible}
.ground{stroke:var(--ink);stroke-width:6;stroke-linecap:round}
.node{fill:var(--ink)}
.edge .stem{stroke-width:8;stroke-linecap:round}
.eL .stem{stroke:var(--left)} .eR .stem{stroke:var(--right)} .eN .stem{stroke:var(--neutral)}
.hit{stroke:transparent;stroke-width:26;cursor:pointer;pointer-events:stroke}
.edge.doom .stem{opacity:.2;stroke-dasharray:6 6}
.edge.ok:hover .stem,.edge.ok .hit:focus-visible ~ .stem{stroke-width:11}
.hit:focus-visible{outline:none;stroke:var(--line)}

.dv{stroke:var(--line);stroke-width:4;stroke-dasharray:2 7;stroke-linecap:round}
.dl.on .dv{stroke-dasharray:none;stroke-width:6}
.dl.on.p0 .dv{stroke:var(--left)} .dl.on.p1 .dv{stroke:var(--right)}
.dl.free.t0:hover .dv,.dl.free.t0:focus-within .dv{stroke:var(--left);stroke-dasharray:none;stroke-width:6;opacity:.55}
.dl.free.t1:hover .dv,.dl.free.t1:focus-within .dv{stroke:var(--right);stroke-dasharray:none;stroke-width:6;opacity:.55}
.dhit{stroke:transparent;stroke-width:22;cursor:pointer;pointer-events:stroke}
.dhit:focus-visible{outline:none}
.dot{fill:var(--ink)}
.bx0{fill:var(--left-soft)} .bx1{fill:var(--right-soft)}
.bxt{font:600 18px var(--f-display);text-anchor:middle;dominant-baseline:central}
.bxt.t0{fill:var(--left)} .bxt.t1{fill:var(--right)}

.hexcell{fill:var(--surface);stroke:var(--line);stroke-width:1.5}
.hexcell.hL{fill:var(--left);stroke:var(--left)} .hexcell.hR{fill:var(--right);stroke:var(--right)}
.hexcell.ok{cursor:pointer}
.hexcell.ok.t0:hover,.hexcell.ok.t0:focus-visible{fill:var(--left-soft);outline:none}
.hexcell.ok.t1:hover,.hexcell.ok.t1:focus-visible{fill:var(--right-soft);outline:none}
.hexedge{fill:none;stroke-width:7;stroke-linejoin:round;stroke-linecap:round}
.hexedge.eL{stroke:var(--left)} .hexedge.eR{stroke:var(--right)}

.gedge{stroke:var(--line);stroke-width:5}
.gv{fill:var(--surface);stroke:var(--ink);stroke-width:2.5}
.gv.cL{fill:var(--left);stroke:var(--left)} .gv.cR{fill:var(--right);stroke:var(--right)}
.gv.ok{cursor:pointer}
.gv.ok.t0:hover,.gv.ok.t0:focus-visible{fill:var(--left-soft);outline:none}
.gv.ok.t1:hover,.gv.ok.t1:focus-visible{fill:var(--right-soft);outline:none}
.gv.no{opacity:.35}

.stars{display:flex;gap:14px;flex-wrap:wrap;justify-content:center}
.star{width:140px;height:140px;background:var(--surface);border:1px solid var(--line);border-radius:12px;overflow:visible}
.sedge{stroke:var(--ink);stroke-width:3}
.sv{stroke:var(--surface);stroke-width:3}
.sv.sL{fill:var(--left)} .sv.sR{fill:var(--right)}
.sv.ok{cursor:pointer;stroke:var(--ink)}
.sv.ok:focus-visible{outline:none;stroke-width:5}
.star.fade *,.fade{opacity:.18}

/* 3 to 15 */
.c15{display:flex;flex-direction:column;gap:18px;align-items:center;width:100%}
.deck{display:grid;grid-template-columns:repeat(9,minmax(0,1fr));gap:6px;width:min(100%,520px)}
.card15{aspect-ratio:3/4;max-width:100%;border-radius:8px;border:1px solid var(--line);background:var(--surface);font:800 clamp(18px,4vw,26px) var(--f-display);display:grid;place-items:center;padding:0}
button.card15:not(:disabled){cursor:pointer}
button.card15:not(:disabled):hover{transform:translateY(-3px)}
.card15.taken{opacity:.25}
.hands{display:grid;grid-template-columns:1fr 1fr;gap:12px;width:min(100%,520px)}
.hand{border-radius:10px;padding:10px 12px;background:var(--surface);border:1px solid var(--line);min-width:0}
.hand.h0{border-color:var(--left)} .hand.h1{border-color:var(--right)}
.hand .cards{display:flex;gap:5px;flex-wrap:wrap;margin-top:6px;min-height:32px}
.hand .cards span{width:26px;height:32px;border-radius:5px;display:grid;place-items:center;font:800 15px var(--f-display);color:var(--on-left)}
.h1 .cards span{color:var(--on-right)}
.h0 .cards span{background:var(--left)} .h1 .cards span{background:var(--right)}


/* ================= v3: sound, intro, demo, motion ================= */
.top-right{display:flex;gap:10px;flex-wrap:wrap;align-items:center}
.sound{display:flex;gap:6px}
.tog{display:inline-flex;align-items:center;gap:6px;border:1px solid var(--line);background:var(--surface);border-radius:999px;padding:6px 12px;cursor:pointer;font-size:13px;font-weight:600}
.tog svg{width:16px;height:16px}
.tog[aria-pressed="false"]{color:var(--muted)}
.tog[aria-pressed="false"] .on{display:none}
.tog[aria-pressed="true"] .off{display:none}
.tog[aria-pressed="true"]{border-color:var(--brand-blue);color:var(--brand-blue)}
.nowplaying{font:500 12px var(--f-mono);color:var(--muted);display:flex;align-items:center;gap:6px}
.eq{display:inline-flex;gap:2px;align-items:flex-end;height:12px}
.eq i{width:3px;background:var(--brand-blue);border-radius:1px;height:4px}
.playing .eq i{animation:eq .9s ease-in-out infinite}
.playing .eq i:nth-child(2){animation-delay:.2s}.playing .eq i:nth-child(3){animation-delay:.45s}
@keyframes eq{0%,100%{height:3px}50%{height:12px}}

.play{position:relative;overflow:hidden}
.board.busy{pointer-events:none}
.turn.bump{animation:bump .35s ease-out}
@keyframes bump{0%{transform:translateY(6px);opacity:.3}100%{transform:none;opacity:1}}

/* intro: entering a game */
.intro{position:absolute;inset:0;z-index:5;display:grid;place-items:center;padding:24px;
  background:radial-gradient(120% 90% at 20% 10%,color-mix(in srgb,var(--brand-blue) 92%,#fff) 0%,var(--brand-blue) 45%,color-mix(in srgb,var(--brand-blue) 55%,var(--charcoal)) 100%);
  color:#fff;overflow:hidden;transition:opacity .5s ease,transform .6s cubic-bezier(.2,.8,.2,1)}
.intro.out{opacity:0;transform:scale(1.08);pointer-events:none}
.intro-inner{position:relative;z-index:2;text-align:center;display:flex;flex-direction:column;gap:12px;align-items:center;max-width:520px}
.intro .chip{background:rgba(255,255,255,.14);border-color:rgba(255,255,255,.35);color:#fff}
.intro-title{font-family:var(--f-display);font-weight:900;font-size:clamp(38px,7vw,68px);line-height:.95;letter-spacing:-.02em;margin:0;text-wrap:balance}
.intro-title .w{display:inline-block;white-space:nowrap}
.intro-title .l{display:inline-block;animation:rise .6s cubic-bezier(.2,.9,.3,1.3) both;animation-delay:calc(var(--i)*35ms + .15s)}
@keyframes rise{from{opacity:0;transform:translateY(40px) rotate(8deg) scale(.7)}}
.intro p{margin:0;opacity:.92;animation:fadeup .6s .55s both}
.intro .mood{font:500 13px var(--f-mono);letter-spacing:.06em;display:flex;gap:8px;align-items:center;animation:fadeup .6s .7s both}
.intro .mood .eq i{background:#fff}
.intro .go{animation:fadeup .6s .85s both;background:#fff;color:var(--charcoal);border:0;border-radius:999px;padding:13px 26px;font:800 16px var(--f-display);cursor:pointer;box-shadow:0 10px 30px rgba(0,0,0,.25)}
.intro .go:hover{transform:translateY(-2px)}
@keyframes fadeup{from{opacity:0;transform:translateY(14px)}}
.motif{position:absolute;inset:0;z-index:1;pointer-events:none}
.motif i{position:absolute;left:var(--x);top:var(--y);width:var(--s);height:var(--s);opacity:.22;animation:drift var(--t) ease-in-out infinite alternate;animation-delay:var(--d)}
.motif .m-disc{border-radius:50%;background:#fff}
.motif .m-dark{background:var(--charcoal)!important;opacity:.35}
.motif .m-box{border-radius:4px;background:#fff}
.motif .m-tile{border-radius:5px;background:#fff;height:calc(var(--s)*2)}
.motif .m-pin{border-radius:999px;background:#fff;height:calc(var(--s)*2.6);width:calc(var(--s)*.6)}
.motif .m-hex{background:#fff;clip-path:polygon(50% 0,100% 25%,100% 75%,50% 100%,0 75%,0 25%)}
.motif .m-card{border-radius:6px;background:#fff;height:calc(var(--s)*1.35)}
.motif .m-edge{background:#fff;height:calc(var(--s)*2.2);width:6px;border-radius:3px}
@keyframes drift{from{transform:translate(0,0) rotate(0)}to{transform:translate(var(--dx),var(--dy)) rotate(var(--r))}}

/* board entry */
.popin{animation:popin .45s cubic-bezier(.2,.9,.3,1.25) backwards;animation-delay:var(--pd,0ms);transform-box:fill-box;transform-origin:center}
@keyframes popin{from{opacity:0;transform:scale(.4) translateY(10px)}}
.board.entering{animation:zoomin .7s cubic-bezier(.2,.8,.2,1)}
@keyframes zoomin{from{transform:scale(1.12);filter:blur(6px);opacity:.2}}

/* move animations */
.fly{transition:transform .28s cubic-bezier(.5,0,.8,.3),opacity .28s!important;transform:translateY(-30px) scale(.5) rotate(-12deg)!important;opacity:0!important}
.split{transition:transform .3s cubic-bezier(.2,.9,.3,1.3)!important;transform:translate(16px,-14px)!important}
.knock{transition:transform .3s cubic-bezier(.6,0,.9,.4),opacity .3s .1s!important;transform-origin:bottom center;transform:rotate(85deg) translateY(10px)!important;opacity:0!important}
.crumble{transition:transform .3s ease-in,opacity .3s!important;transform:scale(.15) rotate(35deg)!important;opacity:0!important}
.stamp{animation:stamp .22s ease-out}
@keyframes stamp{0%{transform:scale(1.35)}100%{transform:scale(1)}}
.tl,.tr{transition:transform .22s cubic-bezier(.6,0,1,.6),opacity .25s .1s!important;opacity:.0!important}
.tl{transform-origin:bottom left!important;transform:rotate(-82deg)!important}
.tr{transform-origin:bottom right!important;transform:rotate(82deg)!important}
.edge.fall{transition:transform .8s cubic-bezier(.45,0,.9,.5),opacity .8s;transform-box:view-box;transform:translate(var(--fx),160px) rotate(var(--fr));opacity:0}
.shake{animation:shake .4s}
@keyframes shake{20%{transform:translate(-4px,2px)}40%{transform:translate(4px,-2px)}60%{transform:translate(-3px,1px)}80%{transform:translate(2px,0)}}
.fxcanvas{position:fixed;inset:0;width:100vw;height:100vh;pointer-events:none;z-index:50}

/* burned squares (Amazons) */
.sqr.burn{background:
  radial-gradient(circle at 28% 32%,#5d2a12 0 7%,transparent 8%),
  radial-gradient(circle at 70% 62%,#6a2f10 0 6%,transparent 7%),
  radial-gradient(circle at 45% 78%,#3c1d0e 0 5%,transparent 6%),
  linear-gradient(160deg,#3a332e,#1f1b18)}
.sqr.burn::after{content:"";position:absolute;inset:0;background:radial-gradient(circle at 50% 60%,rgba(255,120,30,.35),transparent 60%);animation:ember 2.6s ease-in-out infinite alternate}
@keyframes ember{from{opacity:.25}to{opacity:.8}}
.sqr.burn.fresh::before{content:"";position:absolute;left:12%;right:12%;bottom:8%;height:95%;z-index:1;
  background:radial-gradient(50% 70% at 50% 100%,#fff3b0 0 18%,#ffb22e 35%,#ff5a12 60%,transparent 72%);
  filter:blur(1px);transform-origin:bottom center;animation:flame .18s ease-in-out infinite alternate,flameout 1.6s ease-in forwards}
@keyframes flame{from{transform:scaleY(.85) skewX(-4deg)}to{transform:scaleY(1.1) skewX(4deg)}}
@keyframes flameout{0%{opacity:1}70%{opacity:.8}100%{opacity:0;transform:scaleY(.3)}}

/* demo: watch a round */
.demo{display:flex;flex-direction:column;gap:8px}
.demo-box{--cell:20px;position:relative;background:var(--surface-2);border-radius:10px;padding:12px;min-height:150px;display:grid;place-items:center;overflow:hidden;pointer-events:none;user-select:none}
.demo-box > *{max-width:100%}
.demo-box .svgb{max-width:100%!important}
.demo-box .ctr{width:14px;height:14px}
.demo-box .boxes .ctr{width:18px;height:12px}
.demo-box .heaps,.demo-box .pins,.demo-box .dominoes,.demo-box .cherries{gap:6px}
.demo-box .stack{gap:2px}
.demo-box .pin{width:9px;height:30px}
.demo-box .dom{width:14px;height:38px}
.demo-box .cherry{width:20px;height:20px}
.demo-box .ecard{padding:8px;gap:6px;width:auto}
.demo-box .ed{width:8px;height:8px}
.demo-box .btn{display:none}
.demo-box .star{width:84px;height:84px}
.demo-box .heap-n,.demo-box .elab,.demo-box .num{font-size:10px}
.demo-box .card15{font-size:13px}
.demo-box .hand{padding:6px}
.demo-box .hand .cards span{width:16px;height:20px;font-size:11px}
.demo-cap{display:flex;align-items:center;gap:8px;font-size:13px;color:var(--muted);min-height:20px}
.demo-cap .dot{width:10px;height:10px;border-radius:50%;flex:none}
.demo-cap .d0{background:var(--left)} .demo-cap .d1{background:var(--right)}
.d-out{animation:dout .65s ease-in-out both;transform-box:fill-box;transform-origin:center}
@keyframes dout{0%{opacity:1}50%{opacity:.25;transform:scale(1.15)}100%{opacity:.25;transform:scale(.9)}}
.d-in{animation:din .5s cubic-bezier(.2,.9,.3,1.3) backwards;transform-box:fill-box;transform-origin:center}
@keyframes din{from{opacity:0;transform:scale(.5)}}

/* ================= home: pick a game ================= */
.home{display:flex;flex-direction:column;gap:16px}
.home-hero{display:flex;flex-wrap:wrap;gap:16px;align-items:flex-end;justify-content:space-between;padding:22px 24px;border-radius:16px;color:#fff;
  background:radial-gradient(120% 140% at 0% 0%,color-mix(in srgb,var(--brand-blue) 85%,#fff) 0%,var(--brand-blue) 45%,color-mix(in srgb,var(--brand-blue) 55%,var(--charcoal)) 100%)}
.home-hero h2{font-family:var(--f-display);font-weight:900;font-size:clamp(30px,5vw,44px);letter-spacing:-.02em;line-height:1;margin:0 0 8px}
.home-hero p{margin:0;max-width:56ch;opacity:.92}
.surprise{display:inline-flex;align-items:center;gap:8px;background:#fff;color:var(--charcoal);border:0;border-radius:999px;box-shadow:0 8px 24px rgba(0,0,0,.2)}
.surprise svg{width:20px;height:20px}
.surprise:hover{transform:translateY(-1px)}
.filters{display:flex;gap:8px;flex-wrap:wrap}
.fchip{border:1px solid var(--line);background:var(--surface);border-radius:999px;padding:7px 14px;font-weight:600;font-size:14px;cursor:pointer}
.fchip[aria-pressed="true"]{background:var(--ink);border-color:var(--ink);color:#fff}
.cards{display:grid;grid-template-columns:repeat(auto-fill,minmax(250px,1fr));gap:14px}
.gcard{display:flex;flex-direction:column;text-align:left;padding:0;border:1px solid var(--line);border-radius:14px;background:var(--surface);overflow:hidden;cursor:pointer;color:inherit;font:inherit;
  transition:transform .15s ease,box-shadow .15s ease,border-color .15s}
.gcard:hover,.gcard:focus-visible{transform:translateY(-3px);box-shadow:0 12px 28px rgba(36,36,36,.14);border-color:var(--brand-blue)}
.gcard.is-new{border:2px solid var(--brand-blue)}
.gcard.upcoming{cursor:default;border-style:dashed}
.gcard.upcoming:hover,.gcard.upcoming:focus-visible{transform:none;box-shadow:none;border-color:var(--line)}
.gcard.upcoming .gprev{filter:grayscale(1);opacity:.45}
.gcard.upcoming h3,.gcard.upcoming p{opacity:.7}
.chip.upcoming{background:var(--charcoal);border-color:var(--charcoal);color:#fff}
.gprev{height:150px;background:var(--surface-2);display:grid;place-items:center;overflow:hidden;pointer-events:none;position:relative;--cell:22px}
.gprev > *{zoom:var(--fit,1);max-width:none}
.gprev .svgb{width:300px;max-width:none}
.gbody{padding:12px 14px 14px;display:flex;flex-direction:column;gap:6px}
.gmeta{display:flex;gap:6px;flex-wrap:wrap}
.gmeta .chip{font-size:10px;padding:2px 7px}
.chip.new{background:var(--brand-blue);border-color:var(--brand-blue);color:#fff}
.gcard h3{font-family:var(--f-display);font-weight:800;font-size:20px;letter-spacing:-.01em;margin:0;line-height:1.15}
.gcard p{margin:0;color:var(--muted);font-size:14px;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.home-sub{font-family:var(--f-display);font-weight:800;font-size:20px;margin:6px 0 -4px;letter-spacing:-.01em}
.gcard.feat{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1.2fr);border:2px solid var(--brand-blue);min-height:0}
.feat .feat-prev{height:250px;min-height:0}
.feat .gbody{padding:22px 28px;gap:10px;justify-content:center}
.feat h3{font-size:clamp(26px,3.4vw,34px);font-weight:900;letter-spacing:-.02em}
.feat p{font-size:16px;-webkit-line-clamp:4}
.feat .gmeta .chip{font-size:11px;padding:3px 9px}
.feat .feat-go{align-self:flex-start;margin:6px 0 0;padding:12px 22px;font-size:16px;pointer-events:none}
.crumb{display:flex;align-items:center;gap:8px;margin-bottom:-6px}
.back{font-weight:700}

/* ================= Duo Sudoku ================= */
.sdk{--sk:clamp(32px,9.4vw,48px);display:flex;flex-direction:column;align-items:center;gap:12px}
.sdk-setup{display:flex;flex-direction:column;gap:8px;padding:10px 12px;border-radius:12px;background:var(--surface);border:1px solid var(--line);width:100%;max-width:calc(var(--sk)*9 + 18px)}
.sdk-opt{display:flex;align-items:center;gap:6px;flex-wrap:wrap}
.sdk-opt .role{min-width:58px}
.sdk-opt .seg[aria-pressed="true"]{background:var(--ink);border-color:var(--ink);color:#fff}
.soon{font:500 10px var(--f-mono);text-transform:uppercase;letter-spacing:.06em;background:var(--surface-2);border-radius:999px;padding:1px 6px;margin-left:2px}
.sdk-scores{display:grid;grid-template-columns:1fr 1fr;gap:8px;width:100%;max-width:calc(var(--sk)*9 + 18px)}
.sdk-score{display:flex;align-items:center;gap:8px;padding:8px 12px;border-radius:12px;background:var(--surface);border:2px solid var(--line);min-width:0;transition:border-color .2s,box-shadow .2s}
.sdk-score .dot{width:12px;height:12px;border-radius:50%;flex:none}
.sdk-score.s0 .dot{background:var(--left)} .sdk-score.s1 .dot{background:var(--right)}
.sdk-score .nm{flex:1;min-width:0;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;font-weight:600}
.sdk-score b{font:800 22px var(--f-display)}
.sdk-score.on.s0{border-color:var(--left);box-shadow:0 0 0 3px var(--left-soft)}
.sdk-score.on.s1{border-color:var(--right);box-shadow:0 0 0 3px var(--right-soft)}
.sdk-score.out{opacity:.6}
.sdk-clock{font:500 13px var(--f-mono);color:var(--muted);padding:2px 6px;border-radius:6px;background:var(--surface-2)}
.sdk-clock.low{color:#fff;background:#c0392b;animation:livepulse 1s ease-in-out infinite}
.sdk-grid{display:grid;grid-template-columns:repeat(3,auto);gap:3px;border:3px solid var(--ink);border-radius:8px;overflow:hidden;background:var(--ink)}
.sdk-box{display:grid;grid-template-columns:repeat(3,var(--sk));gap:1px;background:color-mix(in srgb,var(--ink) 35%,transparent)}
.sc{width:var(--sk);height:var(--sk);border:0;padding:0;margin:0;background:var(--surface);position:relative;display:grid;place-items:center;font:700 calc(var(--sk)*.52) var(--f-display);color:var(--ink);cursor:pointer}
div.sc{cursor:default}
.sc.g{background:var(--surface);color:#9aa1ab;font-weight:600}
.sc.o0{color:var(--left)} .sc.o1{color:var(--right)}
.sc.o0 .dg,.sc.o1 .dg{font-family:var(--f-display);font-weight:900}
.sc.b2{background:#fff6d6} .sc.b3{background:#ffe3c2}
.sc.o0{background:var(--left-soft)} .sc.o1{background:var(--right-soft)}
.sc.peer{background:#edf3fa} .sc.g.peer{background:#e3ebf5}
.sc.same{background:#d6e6f6}
.sc.sel{background:#bfd6ef;outline:3px solid var(--brand-blue);outline-offset:-3px;z-index:1}
.sc.last .dg{animation:stamp .3s ease-out}
.sc.bad{background:#fbd5d0!important}
.bb-tag{position:absolute;top:2px;right:3px;font:800 calc(var(--sk)*.26) var(--f-display);color:#9a6a00;line-height:1}
.sc.b3 .bb-tag{color:#b5530b}
.sdk-float{position:absolute;left:50%;top:10%;transform:translate(-50%,0);font:900 calc(var(--sk)*.4) var(--f-display);pointer-events:none;animation:floatup .9s ease-out forwards;z-index:3;text-shadow:0 1px 0 #fff}
.sdk-float.f0{color:var(--left)} .sdk-float.f1{color:var(--right)} .sdk-float.bad{color:#c0392b}
@keyframes floatup{from{opacity:1;transform:translate(-50%,0) scale(.8)}to{opacity:0;transform:translate(-50%,-140%) scale(1.25)}}
.sdk-worth{display:grid;grid-template-columns:repeat(9,minmax(0,1fr));gap:3px;padding:5px;border-radius:10px;background:var(--surface);border:1px solid var(--line);width:100%;max-width:calc(var(--sk)*9 + 18px)}
.sdk-worth .wv{display:flex;flex-direction:column;align-items:center;line-height:1.1;padding:3px 0;border-radius:6px;background:var(--surface-2)}
.sdk-worth b{font:800 15px var(--f-display)}
.sdk-worth span{font:800 13px var(--f-mono);color:var(--brand-blue)}
.sdk-worth .done{opacity:.35}
.demo-box .sdk-worth,.gprev .sdk-worth{display:none}
.sdk-pad{display:grid;grid-template-columns:repeat(9,minmax(0,1fr));gap:5px;width:100%;max-width:calc(var(--sk)*9 + 18px)}
.sdk-pad .key{aspect-ratio:1/1.15;border-radius:9px;border:1px solid var(--line);background:var(--surface);font:800 20px var(--f-display);cursor:pointer;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:0;padding:0;box-shadow:0 2px 0 var(--line)}
.sdk-pad .key small{font:500 10px var(--f-mono);color:var(--muted)}
.sdk-pad .key:not(:disabled):hover{background:var(--left-soft);border-color:var(--left)}
.sdk-pad .key:disabled{opacity:.35;cursor:default}
.themed .board[data-game="duosudoku"] > *{rotate:none}
.sdk-gclock{font:800 26px var(--f-mono);letter-spacing:.04em;padding:4px 16px;border-radius:12px;background:var(--ink);color:#fff}
.sdk-gclock.idle{font:500 13px var(--f-mono);background:var(--surface);color:var(--muted);border:1px solid var(--line)}
.sdk-gclock.low{background:#c0392b;animation:livepulse 1s ease-in-out infinite}
.sdk-turnbar{display:flex;align-items:center;gap:8px;width:100%;max-width:calc(var(--sk)*9 + 18px)}
.sdk-turnbar .trk{position:relative;flex:1;height:10px;border-radius:999px;background:var(--surface-2);border:1px solid var(--line);overflow:hidden}
.sdk-turnbar i{position:absolute;inset:0 auto 0 0;width:var(--w,100%);border-radius:999px;background:var(--left);transition:width .25s linear}
.sdk-turnbar.t1 i{background:var(--right)}
.sdk-turnbar span{font:700 13px var(--f-mono);color:var(--ink);min-width:3ch;text-align:right;background:rgba(255,255,255,.9);border-radius:6px;padding:1px 5px}
.sdk-turnbar.low i{background:#c0392b}.sdk-turnbar.low span{color:#c0392b}
.sdk-pads{display:grid;grid-template-columns:1fr 1fr;gap:12px;width:100%;max-width:calc(var(--sk)*9 + 18px)}
.sdk-pads.one{grid-template-columns:1fr}
.sdk-padwrap{display:flex;flex-direction:column;gap:6px;padding:8px;border-radius:12px;border:2px solid var(--left);background:var(--surface)}
.sdk-padwrap.p1{border-color:var(--right)}
.sdk-padwrap .role{display:flex;align-items:center;gap:6px}
.sdk-padwrap .dot{width:10px;height:10px;border-radius:50%;background:var(--left)} .sdk-padwrap.p1 .dot{background:var(--right)}
.sdk-pads:not(.one) .sdk-pad{grid-template-columns:repeat(3,minmax(0,1fr));max-width:none}
.sdk-pad.p0 .key:not(:disabled):hover{background:var(--left-soft);border-color:var(--left)}
.sdk-pad.p1 .key:not(:disabled):hover{background:var(--right-soft);border-color:var(--right)}
.demo-box .sdk-pads,.gprev .sdk-pads,.demo-box .sdk-turnbar,.gprev .sdk-turnbar,.gprev .sdk-gclock{display:none}
.demo-box .sdk-pad,.demo-box .sdk-setup,.gprev .sdk-pad,.gprev .sdk-setup,.gprev .sdk-scores{display:none}
.demo-box .sdk{--sk:22px}
.demo-box .sdk-score{padding:4px 8px}.demo-box .sdk-score b{font-size:15px}

/* ================= online: play a friend on another device ================= */
.net-tog[aria-pressed="false"]{color:var(--ink);border-color:var(--line)}
.net-tog[aria-pressed="true"]{background:var(--brand-blue);color:#fff;border-color:var(--brand-blue)}
.netbar{display:flex;align-items:center;gap:10px;padding:8px 10px 8px 12px;border-radius:10px;background:var(--left-soft);font-size:14px;order:-1}
.netbar .nb-text{display:flex;flex-direction:column;line-height:1.25;min-width:0;flex:1}
.netbar .nb-text span{color:var(--muted);font-size:13px}
.live-dot{width:10px;height:10px;border-radius:50%;background:#c9a227;flex:none;box-shadow:0 0 0 3px rgba(201,162,39,.25)}
.netbar.here .live-dot{background:var(--neutral);box-shadow:0 0 0 3px rgba(63,154,107,.25);animation:livepulse 2s ease-in-out infinite}
@keyframes livepulse{50%{box-shadow:0 0 0 6px rgba(63,154,107,0)}}
.dlg{border:0;border-radius:16px;padding:0;width:min(440px,calc(100vw - 32px));box-shadow:0 24px 60px rgba(0,0,0,.3);color:var(--ink);background:var(--surface)}
.dlg::backdrop{background:rgba(20,24,30,.5)}
.dlg-body{padding:22px;display:flex;flex-direction:column;gap:12px;position:relative}
.dlg-x{position:absolute;top:10px;right:10px;width:36px;height:36px;border-radius:50%;border:0;background:var(--surface-2);font-size:22px;line-height:1;cursor:pointer;color:var(--muted)}
.dlg h2{padding-right:36px}
.dlg h2{font-family:var(--f-display);font-weight:800;font-size:24px;letter-spacing:-.02em;margin:0}
.dlg p{margin:0}
.name-form p{color:var(--muted)}
.name-row{display:flex;align-items:center;gap:10px}
.name-row[hidden]{display:none}
.name-row .dot{width:14px;height:14px;border-radius:50%;flex:none}
.name-row .dot.l{background:var(--left)} .name-row .dot.r{background:var(--right)}
.name-in{flex:1;min-width:0;font:600 17px var(--f-body);padding:12px 14px;border:1px solid var(--line);border-radius:10px;background:var(--surface-2);color:var(--ink)}
.name-in:focus{outline:2px solid var(--brand-blue);outline-offset:1px;background:var(--surface)}
.name-sw{align-self:flex-start;border:0;background:none;padding:2px 0;color:var(--brand-blue);font:600 14px var(--f-body);text-decoration:underline;cursor:pointer}
.name-form .btn.primary:disabled{opacity:.4;cursor:default}
.dlg .row{display:flex;gap:8px;flex-wrap:wrap}
.dlg .btn.primary{margin-left:0}
.btn.big{padding:13px 18px;font-size:16px;font-weight:700}
.vs-link{width:100%;font:500 13px var(--f-mono);padding:10px 12px;border:1px solid var(--line);border-radius:9px;background:var(--surface-2);color:var(--ink)}
.fine{font-size:13px;color:var(--muted)}
.net-opts{display:grid;grid-template-columns:1fr 1fr;gap:10px}
.net-opt{display:flex;flex-direction:column;gap:6px}
.net-opt .btn{width:100%;margin-left:0}
.net-join{border-top:1px solid var(--line);padding-top:12px;display:flex;flex-direction:column;gap:6px}
.net-join h3{font:500 11px var(--f-mono);text-transform:uppercase;letter-spacing:.09em;color:var(--muted);margin:0}
.net-join .row{flex-wrap:nowrap}
.code-in{flex:1;min-width:0;font:700 20px var(--f-mono);letter-spacing:.3em;text-transform:uppercase;padding:9px 12px;border:1px solid var(--line);border-radius:9px;background:var(--surface-2);color:var(--ink)}
.code-in::placeholder{color:#b7bcc4}
.room-code{display:flex;gap:8px;justify-content:center;margin:4px 0}
.room-code span{width:48px;height:58px;display:grid;place-items:center;border-radius:10px;background:var(--brand-blue);color:#fff;font:800 30px var(--f-display);box-shadow:0 4px 0 color-mix(in srgb,var(--brand-blue) 60%,var(--charcoal))}
.mono{font-family:var(--f-mono);letter-spacing:.12em}
.net-err{color:#b3261e;background:#fdecea;border-radius:8px;padding:8px 10px;font-size:14px}
.net-wait{display:flex;align-items:center;gap:10px}
.spin{width:18px;height:18px;border-radius:50%;border:3px solid var(--line);border-top-color:var(--brand-blue);animation:spin .8s linear infinite}
@keyframes spin{to{transform:rotate(360deg)}}
.online .pl input:disabled{color:var(--ink);opacity:1;background:transparent}

/* ================= phones and touchscreens ================= */
.board > *{margin:auto;zoom:var(--fit,1)}
.demo-box > *{zoom:var(--fit,1)}
.board,.seg,.btn,.tog,.go{touch-action:manipulation;-webkit-tap-highlight-color:transparent}
.board button.armed{outline:3px solid var(--neutral);outline-offset:3px}
.how,.sheet-head,.narrow-only{display:none}
.scrim[hidden]{display:none}
.go-row{display:flex;gap:10px;flex-wrap:wrap;justify-content:center}
.intro .go.alt{background:transparent;color:#fff;box-shadow:inset 0 0 0 2px rgba(255,255,255,.75)}

@media (max-width:880px){
  :root{--cell:clamp(34px,10.5vw,50px)}
  .how{display:inline-flex;align-items:center;gap:6px;margin-left:auto;border-color:var(--brand-blue);color:var(--brand-blue);font-weight:700;padding:8px 13px}
  .how svg{width:16px;height:16px}
  .how.nudge{animation:nudge 1.5s ease-in-out 4}
  @keyframes nudge{0%,100%{box-shadow:0 0 0 0 rgba(60,127,188,.55)}50%{box-shadow:0 0 0 9px rgba(60,127,188,0)}}
  .intro .narrow-only{display:inline-block}

  /* the rules card becomes a sheet that slides up over the board */
  .rules{position:fixed;left:0;right:0;bottom:0;z-index:40;max-height:88vh;max-height:88dvh;overflow-y:auto;overscroll-behavior:contain;
    border-radius:18px 18px 0 0;border-bottom:0;padding:0 18px calc(22px + env(safe-area-inset-bottom,0px));box-shadow:0 -12px 40px rgba(0,0,0,.25);
    transform:translateY(105%);visibility:hidden;transition:transform .32s cubic-bezier(.2,.8,.2,1),visibility 0s .32s}
  .sheet-open .rules{transform:none;visibility:visible;transition:transform .32s cubic-bezier(.2,.8,.2,1)}
  .rules.dragging{transition:none}
  .sheet-head{display:flex;justify-content:center;align-items:center;position:sticky;top:0;z-index:3;min-height:52px;margin:0 -18px;background:var(--surface);border-bottom:1px solid var(--line);touch-action:none}
  .grab{width:44px;height:5px;border-radius:3px;background:var(--line)}
  #sheetClose{position:absolute;right:14px;top:50%;transform:translateY(-50%)}
  .sheet-open{overflow:hidden}
  .scrim{position:fixed;inset:0;z-index:39;background:rgba(20,24,30,.45);animation:scrimin .25s}
  @keyframes scrimin{from{opacity:0}}
  .demo-box{--cell:24px;min-height:170px}

  /* board first, the instruction right above it, big buttons below */
  .netbar{order:-1}.bar{order:0}.result{order:1}.hint{order:2}.board{order:3}.controls{order:4}
  .hint{color:var(--ink);background:var(--surface-2);border-left:3px solid var(--brand-blue);padding:8px 12px;border-radius:8px}
  .board{min-height:240px;padding:14px 8px}
  .first{width:100%}
  .seg{padding:8px 14px}
  .controls{display:grid;grid-template-columns:1fr 1fr;gap:8px}
  .btn{padding:11px 14px}
  .btn.small,.how{padding:8px 13px}
  .controls .btn.primary{grid-column:1/-1;margin-left:0;padding:13px}
  .nowplaying{grid-column:1/-1;order:5;justify-content:center}
}

@media (max-width:600px){
  .sdk{--sk:min(44px,calc((100vw - 98px)/9))}
  .sdk-pad .key{font-size:18px;border-radius:7px}
  .sdk-setup{gap:5px;padding:7px 9px}
  .sdk-opt{gap:5px}
  .sdk-opt .role{min-width:66px;font-size:9.5px}
  .sdk-opt .seg{padding:5px 10px;font-size:13px;min-height:0}
  .sdk-opt .soon{font-size:8.5px;padding:1px 4px}
  .sdk-gclock.idle{font-size:11.5px;white-space:nowrap;padding:4px 10px}
  .home-hero{padding:18px;border-radius:14px}
  .surprise{width:100%;justify-content:center}
  .cards{grid-template-columns:1fr 1fr;gap:10px}
  .gprev{height:110px}
  .gbody{padding:9px 10px 11px;gap:4px}
  .gcard h3{font-size:16px}
  .gcard p{font-size:12.5px}
  .gmeta .chip:not(.new){display:none}
  /* featured card: a small board beside the text, not a full screen of board */
  .gcard.feat{grid-template-columns:minmax(0,42%) minmax(0,1fr);min-height:0}
  .feat .feat-prev{min-height:0;height:auto;aspect-ratio:1}
  .feat .gbody{padding:12px 12px 12px 14px;gap:6px}
  .feat .gmeta .chip:not(.new){display:none}
  .feat p{font-size:13px;-webkit-line-clamp:3}
  .feat h3{font-size:22px}
  .feat .feat-go{align-self:stretch;text-align:center;margin:2px 0 0;padding:10px 12px;font-size:15px}

  /* in a game on a phone, the board comes first: no name boxes, a one-line status bar */
  [data-view="play"] .players{display:none}
  .crumb{margin-bottom:-8px}
  .crumb .btn.small{padding:6px 12px;font-size:14px}
  .bar{flex-wrap:nowrap;gap:8px}
  .turn{font-size:16px;min-width:0;gap:8px}
  .turn span:last-child{overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
  .bar.free .turn{display:none} /* both play at once: the hint below already says so */
  .turn .dot{flex:none;width:12px;height:12px}
  .how{flex:none;padding:7px 11px;font-size:14px}
  .hint{font-size:13.5px;padding:6px 10px}
  .board{padding:10px 6px;min-height:0}
  body{padding-block:12px 26px}
  .app{gap:14px}
  .top{gap:10px}
  .top-right{display:contents}
  .brand{flex:1;min-width:0;gap:10px}
  .logo{width:34px;height:34px}
  h1{font-size:23px}
  .tag{display:none}
  .sound{order:2;gap:4px}
  .tog{padding:8px;border-radius:50%}
  .tog .tlabel{display:none}
  .tog svg{width:17px;height:17px}
  .players{order:3;width:100%;display:grid;grid-template-columns:1fr 1fr;gap:8px}
  .pl{min-width:0;padding:3px 4px 3px 10px;gap:6px}
  .pl input{width:100%;min-width:0;font-size:16px;padding:6px 9px}
  .pl .role{display:none}
  .role{font-size:10px;letter-spacing:.05em}
  .pick select{font-size:16px;padding:10px}
  .vs-link{font-size:16px}
  .net-opts{grid-template-columns:1fr}
  .room-code span{width:42px;height:52px;font-size:26px}
  .play{padding:12px;border-radius:12px;gap:12px}
  .turn{font-size:18px}
  .result{padding:12px}
  .result b{font-size:20px}
  .result .row{width:100%}
  .result .row .btn{flex:1}
  .rules h2{font-size:26px}
  .intro{padding:18px;place-items:start center}
  .intro-inner{position:sticky;top:0;padding-top:min(22vh,150px)}
  .intro-title{font-size:clamp(34px,11vw,52px)}
  .intro p{font-size:14px}
  footer{font-size:12px}
}

/* focus mode: a game is under way, so only the game is on screen. Exit game is the one way out. */
.play .focus-exit{display:none}
.focus .top,.focus .crumb,.focus .bar,.focus .hint,.focus .controls,.focus footer,.focus .rules{display:none!important}
.focus .table{grid-template-columns:minmax(0,1fr)}
.focus .play .focus-exit{display:inline-flex;align-self:flex-start;order:-2;padding:6px 12px;font-size:14px}
.focus .board{justify-content:center;min-height:0}
@media (max-width:880px){
  .focus .play{padding:8px;gap:8px}
  .focus .board{padding:8px 4px}
  .focus .app{gap:0}
  .focus .sdk{--sk:min(46px,calc((100vw - 52px)/9),calc((100vh - 330px)/9));--sk:min(46px,calc((100vw - 52px)/9),calc((100dvh - 330px)/9));gap:8px}
  .focus .sdk:has(.sdk-worth){--sk:min(46px,calc((100vw - 52px)/9),calc((100vh - 418px)/9));--sk:min(46px,calc((100vw - 52px)/9),calc((100dvh - 418px)/9))}
  .focus .sdk-worth{padding:3px;gap:2px}
  .focus .sdk-worth .wv{flex-direction:row;justify-content:center;align-items:baseline;gap:2px;padding:4px 0}
  .focus .sdk-worth b{font-size:13px}
  .focus .sdk-worth span{font-size:11px}
  .focus .sdk-scores b{font-size:20px}
  .focus .sdk-score{padding:6px 10px}
  .focus .sdk-gclock{font-size:22px;padding:2px 14px}
  .focus .sdk-pads{gap:8px}
  .focus .sdk-padwrap{padding:6px;gap:4px}
  .focus .sdk-pad{gap:4px}
  .focus .sdk-pad .key{aspect-ratio:auto;height:max(34px,calc(var(--sk)*.92));flex-direction:row;align-items:baseline;justify-content:center;gap:3px;padding:0;line-height:1;place-content:center;align-content:center}
  .focus .sdk-pad .key small{font-size:9.5px}
}
@media (max-width:600px){ .focus{padding-block:6px 10px} }
/* wide screens: each player's pad sits beside the board, and the board is sized to the window height */
@media (min-width:881px){
  .focus .sdk{--sk:min(52px,calc((100vh - 330px)/9));--sk:min(52px,calc((100dvh - 330px)/9));display:grid;grid-template-columns:minmax(0,1fr) auto minmax(0,1fr);column-gap:24px;grid-auto-flow:row dense;justify-items:center;align-items:center;width:100%}
  .focus .sdk:has(.sdk-worth){--sk:min(52px,calc((100vh - 380px)/9));--sk:min(52px,calc((100dvh - 380px)/9))}
  .focus .sdk>*{grid-column:1/-1}
  .focus .sdk>.sdk-grid{grid-column:2}
  .focus .sdk>.sdk-pads{display:contents}
  .focus .sdk-pads>*{width:100%;max-width:230px}
  .focus .sdk-pads>:first-child{grid-column:1;justify-self:end}
  .focus .sdk-pads>:last-child{grid-column:3;justify-self:start}
  .focus .sdk-pads.one>*{grid-column:3}
  .focus .sdk-scores{max-width:calc(var(--sk)*9 + 18px)}
}
@media (max-width:380px){
  h1{font-size:20px}
  .logo{width:30px;height:30px}
  .tog{padding:7px}
  .tog svg{width:16px;height:16px}
}

@media (prefers-reduced-motion: reduce){
  *,*::before,*::after{animation-duration:.01ms!important;animation-iteration-count:1!important;transition-duration:.01ms!important}
}