@font-face{font-family:"Press Start 2P";font-style:normal;font-weight:400;font-display:swap;src:url("/assets/fonts/press-start-2p-latin-400.woff2") format("woff2")}
@font-face{font-family:"VT323";font-style:normal;font-weight:400;font-display:swap;src:url("/assets/fonts/vt323-latin-400.woff2") format("woff2")}
/* Squipy Chess: original board + SVG pieces built from Squipy's rounded squares */
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
:root{
  --bg:#0a0612;--text:#f0e6ff;--muted:rgba(232,210,255,.72);
  --gold:#ffe566;--gold-frame:#c9a227;--gold-lo:#4a2c12;--pink:#ff4ecd;--cyan:#3df0ff;--violet:#c084fc;
  --sq-light:#ece2fb;--sq-dark:#7b5cb3;
  --hl-last:rgba(255,214,79,.5);--hl-sel:#ffd166;--hl-dot:rgba(30,10,60,.38);--hl-check:#ff3b5c;
  --pixel:"Press Start 2P",ui-monospace,monospace;--display:"VT323","Courier New",monospace;--ui:Inter,system-ui,-apple-system,"Segoe UI",Roboto,Arial,sans-serif;
  --safe-l:env(safe-area-inset-left,0px);--safe-r:env(safe-area-inset-right,0px);--safe-b:env(safe-area-inset-bottom,0px);
  --vh:calc(100dvh - var(--rg-bar));
  --strip-h:34px;--hud-h:3.4rem;--side-w:clamp(230px,28vw,340px);
  /* portrait / narrow: the board takes the width; the controls sit below */
  --bs:min(calc(100vw - 16px - var(--safe-l) - var(--safe-r)),620px,max(296px,calc(var(--vh) - 10.5rem)));
}
html{background:var(--bg);-webkit-text-size-adjust:100%;text-size-adjust:100%}
body{min-height:calc(100vh - var(--rg-bar));background:var(--bg);color:var(--text);font-family:var(--display);font-size:20px;overflow-x:hidden;-webkit-tap-highlight-color:transparent}
button,select{font:inherit;color:inherit}
#app{
  display:grid;grid-template-columns:minmax(0,1fr);grid-template-areas:"hud" "board" "side" "foot";
  min-height:var(--vh);
  background:radial-gradient(ellipse 90% 55% at 50% -8%,rgba(255,78,205,.14),transparent 50%),radial-gradient(ellipse 50% 40% at 100% 80%,rgba(61,240,255,.08),transparent 50%),radial-gradient(ellipse 45% 35% at 0% 70%,rgba(192,132,252,.12),transparent 50%),#0a0612;
}
.stage{display:contents}

/* ── HUD ── */
#hud{grid-area:hud;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:.2rem;min-height:var(--hud-h);padding:.45rem max(.8rem,var(--safe-r)) .45rem max(.8rem,var(--safe-l));border-bottom:3px solid var(--gold-frame);box-shadow:0 3px 0 var(--gold-lo),0 8px 24px rgba(0,0,0,.35);background:linear-gradient(180deg,#2a1848 0%,#160c28 100%);text-align:center}
.marquee{font-family:var(--pixel);font-size:clamp(.55rem,1.6vw,.75rem);letter-spacing:.08em;color:var(--gold);text-shadow:0 0 8px rgba(255,229,102,.7),0 0 18px rgba(255,78,205,.35),2px 2px 0 #4a2c12;animation:glow 2.4s ease-in-out infinite}
@keyframes glow{50%{opacity:.8}}
.message{font-size:clamp(1.05rem,3.6vw,1.35rem);line-height:1.1;color:var(--text);min-height:1.1em}
.message.alert{color:#ffb3c1}

/* ── Board area ── */
.board-area{grid-area:board;display:flex;flex-direction:column;align-items:center;gap:6px;padding:8px max(8px,var(--safe-r)) 6px max(8px,var(--safe-l))}
.strip{width:var(--bs);height:var(--strip-h);display:flex;align-items:center;gap:.5rem;padding:0 .55rem;border:2px solid rgba(255,229,102,.28);background:rgba(10,4,22,.6);min-width:0}
.strip-dot{width:10px;height:10px;border-radius:3px;background:#3a2a55;flex:0 0 auto}
.strip.to-move .strip-dot{background:var(--gold);box-shadow:0 0 8px var(--gold)}
.strip.to-move{border-color:rgba(255,229,102,.7)}
.strip-name{font-size:1.1rem;white-space:nowrap;overflow:hidden;text-overflow:ellipsis;flex:0 1 auto;min-width:0}
.strip-caps{display:flex;flex-wrap:nowrap;align-items:center;flex:1 1 auto;min-width:0;overflow:hidden}
.strip-caps .cap{width:18px;height:18px;flex:0 0 auto;margin-right:-5px}
.strip-caps .cap svg{width:100%;height:100%;display:block}
.strip-adv{font-family:var(--pixel);font-size:.5rem;color:var(--gold);flex:0 0 auto}

.board-frame{position:relative;padding:6px;background:linear-gradient(135deg,#ffe58a,#c9a227 40%,#7a5414);box-shadow:4px 4px 0 #1a0c04,0 0 36px rgba(192,132,252,.28)}
.board{width:var(--bs);height:var(--bs);display:grid;grid-template-columns:repeat(8,1fr);grid-template-rows:repeat(8,1fr);touch-action:manipulation;user-select:none;-webkit-user-select:none;-webkit-touch-callout:none;contain:layout}
.sq{position:relative;display:block;border:0;border-radius:0;background:var(--sq-light);cursor:pointer;padding:0;min-width:0;min-height:0;-webkit-tap-highlight-color:transparent;touch-action:manipulation}
.sq.dark{background:var(--sq-dark)}
/* soft Squipy rounded-square inlay on each dark square */
.sq.dark::before{content:"";position:absolute;inset:14%;border-radius:22%;background:rgba(255,255,255,.05);pointer-events:none}
.sq.last::after{content:"";position:absolute;inset:0;background:var(--hl-last);pointer-events:none}
.sq.sel::after{content:"";position:absolute;inset:0;background:rgba(255,209,102,.55);box-shadow:inset 0 0 0 3px var(--hl-sel);pointer-events:none}
.sq.check{background-image:radial-gradient(circle at 50% 55%,rgba(255,59,92,.95) 0,rgba(255,59,92,.6) 38%,transparent 72%)}
.sq .dot{position:absolute;left:50%;top:50%;width:30%;height:30%;transform:translate(-50%,-50%);border-radius:30%;background:var(--hl-dot);pointer-events:none;z-index:2}
.sq.cap .dot{width:88%;height:88%;background:transparent;border:5px solid var(--hl-dot);border-radius:26%}
/* castling hint: the king's destination dot gets a ring and the rook is outlined (tap either to castle) */
.sq.castle .dot{width:36%;height:36%;background:rgba(61,240,255,.55);box-shadow:0 0 0 3px rgba(30,10,60,.45)}
.sq.castle-rook{box-shadow:inset 0 0 0 3px rgba(61,240,255,.9)}
.sq.castle-rook .pc{filter:drop-shadow(0 0 4px rgba(61,240,255,.8))}
.sq:focus{outline:none}
.sq:focus-visible{outline:3px solid var(--cyan);outline-offset:-3px;z-index:4}
.sq.drop-hover{box-shadow:inset 0 0 0 4px rgba(61,240,255,.9)}
.coord{position:absolute;font-family:var(--ui);font-weight:700;font-size:clamp(8px,1.7vw,12px);line-height:1;pointer-events:none;z-index:1;color:var(--sq-dark)}
.sq.dark .coord{color:var(--sq-light)}
.coord.file{right:3px;bottom:2px}
.coord.rank{left:3px;top:3px}
.pc{position:absolute;inset:4%;z-index:3;pointer-events:none;will-change:transform}
.pc svg{width:100%;height:100%;display:block;filter:drop-shadow(0 2px 1px rgba(10,0,30,.35))}
.pc.anim{transition:transform .18s cubic-bezier(.3,.7,.3,1)}
.pc.lifted{opacity:.3}
.board.can-drag .sq.mine{cursor:grab}
.drag-ghost{position:fixed;z-index:200;pointer-events:none;left:0;top:0;transform:translate(-50%,-50%);filter:drop-shadow(0 8px 10px rgba(0,0,0,.5))}
.drag-ghost svg{width:100%;height:100%;display:block}

/* Piece palettes (classes are used inside the SVG markup) */
.p-w .body{fill:#fff6e6;stroke:#2a1648}
.p-w .acc{fill:#ffd166;stroke:#2a1648}
.p-w .eye{fill:#2a1648}
.p-w .line{stroke:#2a1648;fill:none}
.p-b .body{fill:#3a1a6b;stroke:#f1e4ff}
.p-b .acc{fill:#ff6ad5;stroke:#f1e4ff}
.p-b .eye{fill:#f1e4ff}
.p-b .line{stroke:#f1e4ff;fill:none}
.body,.acc{stroke-width:4;stroke-linejoin:round}
.line{stroke-width:3.5;stroke-linecap:round}

/* Promotion picker */
.promo{position:absolute;inset:0;z-index:20;display:grid;place-items:center;background:rgba(5,2,12,.62)}
.promo[hidden]{display:none}
.promo-card{background:linear-gradient(180deg,#2a1848,#12081f);border:3px solid var(--gold-frame);box-shadow:4px 4px 0 #1a0c04;padding:.8rem;text-align:center;max-width:94%}
.promo-card h2{font-family:var(--pixel);font-size:.6rem;color:var(--gold);margin-bottom:.6rem;line-height:1.4}
.promo-choices{display:grid;grid-template-columns:repeat(4,minmax(44px,64px));gap:.4rem;margin-bottom:.6rem;justify-content:center}
.promo-choices button{aspect-ratio:1;border:2px solid rgba(255,229,102,.5);background:var(--sq-light);cursor:pointer;padding:4px;min-height:44px}
.promo-choices button:nth-child(even){background:var(--sq-dark)}
.promo-choices button:hover,.promo-choices button:focus-visible{outline:3px solid var(--cyan);outline-offset:1px}
.promo-choices svg{width:100%;height:100%;display:block}

/* ── Side panel ── */
.side{grid-area:side;display:flex;flex-direction:column;gap:.7rem;padding:.4rem max(.8rem,var(--safe-r)) .8rem max(.8rem,var(--safe-l));width:min(100%,calc(var(--bs) + 16px));justify-self:center;min-width:0}
.controls{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:.5rem}
.btn{font-family:var(--pixel);font-size:.55rem;line-height:1.35;letter-spacing:.04em;cursor:pointer;border:3px solid var(--gold-frame);background:linear-gradient(180deg,#3b1f6e,#1e0f3a);color:var(--gold);text-decoration:none;display:inline-grid;place-items:center;text-align:center;min-height:44px;padding:.45rem .6rem;box-shadow:3px 3px 0 #2a1508,inset 0 1px 0 rgba(255,255,255,.12);border-radius:0;touch-action:manipulation}
.btn.primary{background:linear-gradient(180deg,#ff4ecd,#9d174d);border-color:#ffb3e0;color:#fff}
.btn.ghost{background:linear-gradient(180deg,#2a1848,#12081f)}
.btn.small{min-height:40px;font-size:.5rem}
.btn:hover{filter:brightness(1.12)}
.btn:active{transform:translate(2px,2px);box-shadow:1px 1px 0 #2a1508}
.btn:focus-visible{outline:3px solid var(--cyan);outline-offset:2px}
.btn:disabled{opacity:.45;cursor:not-allowed;filter:none;transform:none}
.btn[aria-pressed="true"]{border-color:var(--cyan)}
.setup{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:.5rem;align-items:end;border:2px solid rgba(255,229,102,.22);background:rgba(10,4,22,.5);padding:.55rem}
.setup.two-p{grid-template-columns:minmax(0,1fr)}
.setup.two-p .cpu-only{display:none}
.tp-choice{display:none;grid-column:1/-1;grid-template-columns:repeat(3,minmax(0,1fr));gap:.35rem}
.setup.two-p .tp-choice{display:grid}
.chip{min-height:44px;border:2px solid rgba(192,132,252,.55);background:#1a0e30;color:var(--text);font-family:var(--display);font-size:1.05rem;line-height:1.05;cursor:pointer;padding:.25rem .3rem;border-radius:0}
.chip[aria-pressed="true"]{border-color:var(--gold);background:#3b1f6e;color:var(--gold)}
.chip:focus-visible{outline:3px solid var(--cyan);outline-offset:1px}
#app.is-online #btn-new,#app.is-online #btn-undo,#app.is-online .setup .cpu-only{display:none}
#app.is-online .controls{grid-template-columns:1fr}
.room{border:2px solid rgba(61,240,255,.45);background:rgba(10,4,22,.6);padding:.5rem .55rem;display:flex;flex-direction:column;gap:.4rem}
.room[hidden]{display:none}
.room h2{font-family:var(--pixel);font-size:.5rem;letter-spacing:.08em;color:var(--cyan);line-height:1.5}
.room-code-small{color:var(--gold);letter-spacing:.14em}
.room-status{font-size:1.1rem;line-height:1.15}
.room-status .dot-on,.room-status .dot-off{display:inline-block;width:9px;height:9px;border-radius:3px;margin-right:.35rem;vertical-align:middle}
.room-status .dot-on{background:#4ade80;box-shadow:0 0 6px #4ade80}
.room-status .dot-off{background:#f87171}
.room-offer{display:flex;flex-wrap:wrap;gap:.4rem;align-items:center;border:2px dashed rgba(255,229,102,.6);padding:.4rem}
.room-offer[hidden]{display:none}
.room-offer p{flex:1 1 100%;font-size:1.1rem;color:var(--gold)}
.room-actions{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:.35rem}
.room-panel{width:min(26rem,100%)}
.room-panel .field{text-align:left;margin-bottom:.6rem}
.rd-note{color:var(--muted);font-size:1.1rem;line-height:1.2;margin-bottom:.8rem;text-align:left}
.room-code{font-family:var(--pixel);font-size:clamp(1.3rem,7vw,1.9rem);letter-spacing:.18em;color:var(--gold);text-shadow:0 0 12px rgba(255,229,102,.5);margin:.2rem 0 .7rem;user-select:all;-webkit-user-select:all}
.rd-link{width:100%;min-height:40px;margin-bottom:.8rem;background:#1a0e30;border:2px solid rgba(192,132,252,.55);color:var(--text);font:1rem/1.2 var(--ui);padding:0 .5rem}
.rd-input{width:100%;min-height:48px;background:#1a0e30;border:2px solid rgba(192,132,252,.7);color:var(--gold);font-family:var(--pixel);font-size:1.1rem;letter-spacing:.2em;text-transform:uppercase;padding:0 .6rem;border-radius:0}
.rd-input:focus-visible,.rd-link:focus-visible{outline:3px solid var(--cyan);outline-offset:1px}
.rd-error{color:#ffb3c1;font-size:1.1rem;min-height:1.2em;margin-top:.6rem}
.rd-error:empty{display:none}
.field{display:flex;flex-direction:column;gap:.25rem;min-width:0}
.field label{font-family:var(--pixel);font-size:.45rem;letter-spacing:.06em;color:var(--cyan);text-transform:uppercase}
.field select{width:100%;min-height:44px;padding:0 .4rem;background:#1a0e30;border:2px solid rgba(192,132,252,.55);border-radius:0;font-family:var(--display);font-size:1.1rem;color:var(--text);cursor:pointer}
.field select:focus-visible{outline:3px solid var(--cyan);outline-offset:1px}
.setup-note{grid-column:1/-1;font-size:1rem;color:var(--gold)}
.setup-note[hidden]{display:none}
.moves{display:flex;flex-direction:column;min-height:0;border:2px solid rgba(255,229,102,.22);background:rgba(10,4,22,.5)}
.moves h2{font-family:var(--pixel);font-size:.5rem;letter-spacing:.1em;color:var(--pink);padding:.5rem .55rem .35rem}
.move-list{list-style:none;overflow-y:auto;max-height:11.5rem;min-height:3rem;padding:0 .35rem .4rem;font-size:1.15rem;line-height:1.25;display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1fr);column-gap:.4rem;align-content:start}
.move-list:focus-visible{outline:3px solid var(--cyan);outline-offset:-3px}
.move-list li{display:grid;grid-template-columns:2.4em 1fr 1fr;gap:.2rem;padding:.05rem .2rem;min-width:0}
.move-list .no{color:var(--muted)}
.move-list .mv{white-space:nowrap}
.move-list .mv.cur{background:rgba(255,229,102,.22);color:var(--gold)}
.move-list .result{grid-column:1/-1;color:var(--gold);text-align:center}
.move-list .empty{grid-column:1/-1;color:var(--muted);padding:.2rem}

/* ── Footer ── */
.footer-bar{grid-area:foot;display:flex;align-items:center;justify-content:space-between;gap:.75rem;padding:.45rem max(.85rem,var(--safe-r)) calc(.5rem + var(--safe-b)) max(.85rem,var(--safe-l));border-top:3px solid var(--gold-frame);background:linear-gradient(180deg,#160c28,#0a0612);box-shadow:0 -3px 0 var(--gold-lo)}
.hint{font-family:var(--pixel);font-size:.42rem;letter-spacing:.06em;color:var(--muted);line-height:1.6}
.version{font-family:var(--pixel);font-size:.42rem;color:rgba(232,210,255,.62);flex-shrink:0}

/* ── Game over overlay ── */
.overlay{position:fixed;inset:var(--rg-bar) 0 0 0;z-index:90;display:grid;place-items:center;background:rgba(5,2,12,.74);padding:1rem}
.overlay[hidden]{display:none}
.overlay .panel{width:min(24rem,100%);padding:1.4rem 1.2rem;border:4px solid var(--gold-frame);background:linear-gradient(180deg,#2a1848,#12081f);box-shadow:6px 6px 0 #1a0c04,0 0 40px rgba(255,78,205,.2);text-align:center}
.panel-tag{font-family:var(--pixel);font-size:.5rem;letter-spacing:.16em;color:var(--pink);margin-bottom:.65rem}
.panel h2{font-family:var(--pixel);font-size:clamp(.85rem,3vw,1.1rem);line-height:1.4;color:var(--gold);text-shadow:0 0 12px rgba(255,229,102,.55),3px 3px 0 #4a2c12;margin-bottom:.5rem}
.subtitle{color:var(--muted);font-size:1.25rem;margin-bottom:1.1rem}
.actions{display:flex;flex-wrap:wrap;gap:.6rem;justify-content:center}
.actions .btn{min-width:7.5rem}

/* ── Landscape / wide: board left, controls right ── */
@media (min-aspect-ratio:1/1) and (min-width:560px){
  :root{--bs:min(calc(var(--vh) - var(--hud-h) - 2 * var(--strip-h) - 4.6rem),calc(100vw - var(--side-w) - 3rem - var(--safe-l) - var(--safe-r)),720px)}
  #app{grid-template-columns:minmax(0,1fr) auto var(--side-w) minmax(0,1fr);grid-template-rows:auto minmax(0,1fr) auto;grid-template-areas:"hud hud hud hud" ". board side ." "foot foot foot foot";column-gap:.6rem;height:var(--vh);min-height:0}
  .board-area{align-self:center;padding-top:10px}
  .side{width:auto;align-self:center;height:calc(var(--bs) + 2 * var(--strip-h) + 24px);max-height:100%;overflow:hidden;padding:10px 0 6px;justify-self:stretch}
  .controls{grid-template-columns:1fr 1fr}
  .controls #btn-new{grid-column:1/-1}
  .setup{grid-template-columns:1fr 1fr}
  .setup .field:first-child{grid-column:1/-1}
  .moves{flex:1 1 auto}
  .move-list{max-height:none;flex:1 1 auto;min-height:4rem}
  body{overflow:hidden}
}
/* Short landscape (phones on their side): no marquee, HUD moves into the right column so the board can use the full height */
@media (min-aspect-ratio:1/1) and (min-width:560px) and (max-height:560px){
  :root{--strip-h:26px;--bs:min(calc(var(--vh) - 2 * var(--strip-h) - 1.6rem),calc(100vw - var(--side-w) - 2.4rem - var(--safe-l) - var(--safe-r)),720px)}
  #app{grid-template-columns:minmax(0,1fr) auto var(--side-w) minmax(0,1fr);grid-template-rows:auto minmax(0,1fr);grid-template-areas:". board hud ." ". board side ."}
  .footer-bar,.marquee{display:none}
  #hud{min-height:0;border:2px solid rgba(255,229,102,.3);box-shadow:none;margin:.4rem max(.4rem,var(--safe-r)) 0 0;padding:.3rem .5rem}
  .message{font-size:1.05rem}
  .board-area{gap:4px;padding:6px 0 6px max(6px,var(--safe-l))}
  .board-frame{padding:4px}
  .strip-name{font-size:.95rem}
  .side{padding:.4rem max(.4rem,var(--safe-r)) .4rem 0;gap:.4rem;align-self:stretch;height:auto}
  .controls{grid-template-columns:repeat(3,minmax(0,1fr));gap:.35rem}
  .controls #btn-new{grid-column:auto}
  .btn{font-size:.46rem;padding:.3rem .3rem}
  .field select{font-size:1rem;min-height:38px}
  .setup{padding:.35rem;gap:.35rem}
  .field label{font-size:.4rem}
  .field select,.btn{min-height:38px}
  .moves h2{display:none}
  .move-list{padding-top:.3rem;font-size:1.05rem}
}
@media (min-width:1100px) and (min-height:760px){:root{--side-w:340px}}
@media (max-width:380px){
  .btn{font-size:.48rem;padding:.4rem .35rem}
  .setup{grid-template-columns:1fr 1fr}
  .setup .field:first-child{grid-column:1/-1}
  .strip-name{font-size:1rem}
  .hint{font-size:.38rem}
}
@media (max-width:559px){.setup.two-p{grid-template-columns:1fr}}
@media (prefers-reduced-motion:reduce){
  .marquee{animation:none}
  .pc.anim{transition:none}
  .btn:active{transform:none}
}