/* Chess City — app shell styles. Palette from Chess World tokens (Bellacqua), board tuned for legibility. */
:root{--ink:#233e3c;--muted:#536761;--paper:#fcf8eb;--sand:#eee7d2;--teal:#355f59;--teal2:#2b4f4a;--mint:#cfe2ce;--gold:#b78335;--bad:#943b33;--line:#d4d3c2;--card:#fffdf6;--focus:#164fbd;
 --sq-l:#efe6cf;--sq-d:#7c9e91;--sq-last:#e8c86a;--sq-sel:#f2d36b;--r-common:#7b7f86;--r-uncommon:#3f8f5d;--r-rare:#2f6fb3;--r-epic:#7e4ab0;--r-legendary:#a87412;
 --font:system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,sans-serif;--serif:Georgia,"Times New Roman",serif}
[data-theme=night]{--ink:#e9efe8;--muted:#a9bab3;--paper:#15211f;--sand:#1d2c29;--teal:#5c9c90;--teal2:#4c8a7f;--mint:#24403a;--line:#33504a;--card:#1b2a27;--sq-l:#d9d2bd;--sq-d:#5f8378}
*{box-sizing:border-box}html{background:var(--paper)}body{margin:0;background:var(--paper);color:var(--ink);font:16px/1.55 var(--font);-webkit-text-size-adjust:100%}
a{color:var(--teal)}h1,h2,h3{font-family:var(--serif);font-weight:500;line-height:1.15}h1{font-size:clamp(30px,3.4vw,46px);margin:6px 0 12px}h2{font-size:24px;margin:4px 0 10px}h3{font-size:19px;margin:0 0 8px}
p{margin:6px 0 12px}.lead{font-size:18px;color:var(--muted);max-width:760px}.muted{color:var(--muted)}.tiny{font-size:13px}.err,.bad{color:var(--bad)}.sr{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0)}
:focus-visible{outline:3px solid var(--focus);outline-offset:3px}
.skip{position:absolute;left:8px;top:-80px;background:#fff;padding:10px;z-index:200}.skip:focus{top:8px}
header.top{position:sticky;top:0;z-index:50;display:flex;align-items:center;gap:16px;padding:10px 3vw;background:var(--paper);border-bottom:1px solid var(--line);flex-wrap:wrap}
.brand{font:700 24px var(--serif);color:var(--ink);text-decoration:none;margin-right:auto;display:flex;align-items:center;gap:10px}.brand svg{width:34px;height:34px}
.res-bar{display:flex;gap:8px;flex-wrap:wrap}.res{display:inline-flex;gap:6px;align-items:baseline;padding:6px 12px;border:1px solid var(--line);border-radius:999px;background:var(--card);font-size:14px;text-decoration:none;color:var(--ink)}.res b{font-size:17px;font-variant-numeric:tabular-nums}.res.due{border-color:var(--gold)}
nav.nav{display:flex;gap:4px;padding:6px 3vw;border-bottom:1px solid var(--line);background:var(--sand);overflow-x:auto}
.nav a{padding:10px 14px;min-height:44px;border-radius:12px;text-decoration:none;color:var(--ink);font-weight:600;white-space:nowrap;display:flex;align-items:center}.nav a:hover{background:var(--mint)}.nav a[aria-current=page]{background:var(--teal);color:#fff}
#banner{margin:0;padding:8px 3vw;background:#f6dfb9;color:#4a3410}#banner p{margin:4px 0}
main{max-width:1400px;margin:auto;padding:22px 3vw 80px;outline:none}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:6px;min-height:44px;padding:9px 16px;border:1px solid var(--line);border-radius:12px;background:var(--card);color:var(--ink);font:600 15px var(--font);cursor:pointer;text-decoration:none;touch-action:manipulation}
.btn:hover{background:var(--mint)}.btn:disabled{opacity:.55;cursor:not-allowed}.btn.primary{background:var(--teal);border-color:var(--teal);color:#fff}.btn.primary:hover{background:var(--teal2)}.btn.ghost{background:transparent}.btn.danger{color:var(--bad)}.btn.big{min-height:54px;font-size:17px;padding:12px 22px}.btn.small{min-height:36px;padding:5px 10px;font-size:13px}
.row{display:flex;gap:8px;flex-wrap:wrap;align-items:center;margin:8px 0}
.card{background:var(--card);border:1px solid var(--line);border-radius:18px;padding:20px;box-shadow:0 10px 30px #233e3c10}.card.compact{padding:16px}
.seg{display:inline-flex;border:1px solid var(--line);border-radius:12px;overflow:hidden;margin:6px 0 10px;flex-wrap:wrap}.seg button{min-height:42px;padding:8px 12px;border:0;background:var(--card);color:var(--ink);font:600 14px var(--font);cursor:pointer}.seg button.on{background:var(--teal);color:#fff}
.set{display:flex;align-items:center;gap:10px;margin:8px 0;min-height:44px}.set.col{flex-direction:column;align-items:stretch}.set select,.set input,.set textarea{font:15px var(--font);padding:8px;border:1px solid var(--line);border-radius:10px;background:var(--paper);color:var(--ink);min-height:40px}.set input[type=checkbox]{width:22px;height:22px;min-height:0}textarea{width:100%;font-family:ui-monospace,Menlo,monospace!important;font-size:13px!important}
/* home */
.hero{display:flex;justify-content:space-between;align-items:flex-end;gap:20px;flex-wrap:wrap;margin-bottom:16px}.cta{display:flex;gap:10px;flex-wrap:wrap}
.city-wrap{display:grid;grid-template-columns:minmax(0,1fr) 300px;gap:18px;align-items:start}
.city{position:relative;aspect-ratio:16/10;border-radius:22px;overflow:hidden;border:1px solid #b6cbbd;background:#acd0c5;box-shadow:0 14px 40px #233e3c18}
.city-base{position:absolute;inset:0;width:100%;height:100%;display:block;pointer-events:none}
.bldg{position:absolute;width:16%;height:22.4%;pointer-events:none}
.city-plain{position:absolute;inset:0;background:radial-gradient(circle at 50% 50%,#f4ebcd 0 55%,#8fc7c1 56%)}
.pin{position:absolute;transform:translate(-50%,0);min-height:44px;padding:8px 14px;border-radius:999px;background:#fcf8ebf2;border:1px solid #bcc6ae;color:#233e3c;font-weight:700;font-size:14px;text-decoration:none;box-shadow:0 3px 12px #23493630;white-space:nowrap;display:flex;align-items:center}
.pin:hover{background:#355f59;color:#fff}.pin small{font-weight:500;opacity:.8}
.district-list{display:grid;gap:8px}.district{display:block;padding:12px 14px;border:1px solid var(--line);border-radius:14px;background:var(--card);text-decoration:none;color:var(--ink);min-height:44px}.district b{display:block}.district span{font-size:13px;color:var(--muted)}.district:hover{border-color:var(--teal)}
.home-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(320px,1fr));gap:18px;margin-top:18px}
.facts{padding-left:18px}.facts li{margin:4px 0}table.themes,table.odds{border-collapse:collapse;width:100%;font-size:14px;font-variant-numeric:tabular-nums}.themes td,.themes th,.odds td,.odds th{padding:5px 6px;border-bottom:1px solid var(--line);text-align:left}
.kv{display:grid;grid-template-columns:1fr auto;gap:4px 12px}.kv dd{margin:0;font-weight:700;text-align:right}
/* board + play layout */
.play-layout{display:grid;grid-template-columns:minmax(300px,min(78vh,780px)) minmax(280px,1fr);gap:22px;align-items:start;justify-content:center}
.board-col{min-width:0;display:flex;flex-direction:column;gap:8px}.board-head,.board-foot{display:flex;gap:10px;align-items:center;flex-wrap:wrap;min-height:44px}
.board-box{position:relative;width:100%;aspect-ratio:1}.board-box.with-bar{display:grid;grid-template-columns:22px 1fr;gap:8px;aspect-ratio:auto}
.board{width:100%;aspect-ratio:1;border-radius:6px;overflow:hidden;box-shadow:0 10px 30px #233e3c30}
.ccb{position:relative;display:grid;grid-template-columns:repeat(8,1fr);grid-template-rows:repeat(8,1fr);user-select:none;-webkit-user-select:none;touch-action:none}
.ccb .sq{position:relative;display:flex;align-items:center;justify-content:center;min-width:0;min-height:0}.ccb .sq.l{background:var(--sq-l)}.ccb .sq.d{background:var(--sq-d)}
.ccb .sq.last{background-image:linear-gradient(#e8c86a99,#e8c86a99)}.ccb .sq.sel{background-image:linear-gradient(#f2d36bcc,#f2d36bcc)}.ccb .sq.check{background-image:radial-gradient(circle,#e0473fdd 0 40%,#e0473f00 72%)}
.ccb .sq.mk-hint{box-shadow:inset 0 0 0 5px #2f7d5b}.ccb .sq.mk-bad{box-shadow:inset 0 0 0 5px #c0392b}
.ccb .pc{width:92%;height:92%;pointer-events:none;-webkit-user-drag:none;z-index:1}
.ccb i.dot{position:absolute;width:28%;height:28%;border-radius:50%;background:#233e3c55;z-index:2;pointer-events:none}.ccb i.cap{position:absolute;inset:4%;border-radius:50%;border:6px solid #233e3c55;z-index:2;pointer-events:none}
.ccb .rk,.ccb .fl{position:absolute;font:700 12px var(--font);opacity:.75;pointer-events:none;z-index:1}.ccb .rk{left:3px;top:2px}.ccb .fl{right:4px;bottom:1px}.ccb .sq.l .rk,.ccb .sq.l .fl{color:#557a6e}.ccb .sq.d .rk,.ccb .sq.d .fl{color:#f4eedc}
.ccb .arrows{position:absolute;inset:0;width:100%;height:100%;pointer-events:none;z-index:3}
.ccb .promo{position:absolute;inset:25% 10%;z-index:5;display:grid;grid-template-columns:repeat(4,1fr);gap:6px;padding:10px;background:var(--card);border:2px solid var(--teal);border-radius:14px;box-shadow:0 10px 30px #0006;align-items:center}.ccb .promo button{border:1px solid var(--line);border-radius:10px;background:var(--paper);cursor:pointer;min-height:56px}.ccb .promo img{width:100%}
.ccb-ghost{position:fixed;z-index:300;pointer-events:none;transform:translate(-50%,-55%) scale(1.12)}
.turn-dot{width:16px;height:16px;border-radius:50%;border:2px solid var(--ink)}.turn-dot.w{background:#fff}.turn-dot.b{background:#222}
.side{display:flex;flex-direction:column;gap:14px;min-width:0}
.dots{display:flex;gap:8px;list-style:none;padding:0;margin:4px 0}.dots li{width:26px;height:26px;border-radius:50%;border:2px solid var(--line);background:var(--paper)}.dots li.cur{border-color:var(--teal)}.dots li.clean{background:#3f8f5d;border-color:#3f8f5d}.dots li.assisted{background:var(--gold);border-color:var(--gold)}.dots li.shown{background:#b7b7ad;border-color:#b7b7ad}
.hint{background:var(--mint);padding:10px 12px;border-radius:12px}.line{line-height:2}.mv{border:1px solid var(--line);background:var(--paper);color:var(--ink);border-radius:8px;padding:4px 8px;cursor:pointer;font:600 14px var(--font);min-height:32px}.mv.cur{background:var(--teal);color:#fff}.mv.mid i{color:#b06d00;font-style:normal}.mv.big i{color:var(--bad);font-style:normal}
.moves{list-style:none;padding:0;margin:6px 0;max-height:260px;overflow:auto;font-variant-numeric:tabular-nums}.moves li{display:grid;grid-template-columns:1fr 1fr;gap:6px;padding:2px 0}.moves.an li{grid-template-columns:34px 1fr 1fr}.moves .n{color:var(--muted)}
.reward{font:700 28px var(--serif);color:var(--gold);margin:6px 0}
.evalbar{position:relative;background:#2c2c2c;border-radius:6px;overflow:hidden}.evalbar i{position:absolute;left:0;right:0;bottom:0;height:50%;background:#f2efe6;transition:height .3s}
.graph{width:100%;height:100px;border:1px solid var(--line);border-radius:10px;background:var(--card)}.g-bg{fill:transparent}.g-mid{stroke:var(--line)}.g-line{fill:none;stroke:var(--teal);stroke-width:2}.g-cur{stroke:var(--gold);stroke-width:2}
.bots{display:grid;grid-template-columns:repeat(auto-fill,minmax(280px,1fr));gap:14px;margin-top:12px}.bot{display:flex;gap:14px;align-items:flex-start}.bot .lvl{flex:none;width:48px;height:48px;border-radius:50%;display:grid;place-items:center;background:var(--teal);color:#fff;font:700 22px var(--serif)}.bimg{width:120px;height:auto;flex:none}
/* vault / museum */
.chests{display:grid;grid-template-columns:repeat(auto-fit,minmax(230px,1fr));gap:14px}.chest img{width:100%;max-width:220px;display:block;margin:auto}.chest .cost{font-size:18px}.pity{background:var(--mint);padding:10px 14px;border-radius:12px}
.modal-bg{position:fixed;inset:0;z-index:150;background:#1f3734aa;display:grid;place-items:center;padding:12px}.modal{width:min(520px,100%);max-height:calc(100vh - 24px);overflow:auto;background:var(--paper);border-radius:20px;border:1px solid var(--line);box-shadow:0 20px 60px #0005}.modal.wide{width:min(760px,100%)}
.modal-bar{position:sticky;top:0;z-index:5;display:flex;justify-content:flex-end;padding:8px;background:var(--paper);border-bottom:1px solid var(--line)}.modal-body{padding:6px 22px 20px}
.reveal-art{position:relative;width:min(320px,80vw);margin:auto}.reveal-art img{width:100%;display:block}.reveal[data-stage=open] .st-done{display:none}.reveal[data-stage=done] .st-open{display:none}
.reveal[data-stage=done] .reveal-art img{animation:fadein .16s ease-out}.reveal-card{display:flex;gap:16px;align-items:center;margin-top:10px}.reveal-card img{width:150px;border-radius:10px}
@keyframes fadein{from{opacity:0}to{opacity:1}}
.rar{display:inline-block;font-weight:700;font-size:13px;text-transform:uppercase;letter-spacing:.06em}.r-common{color:var(--r-common)}.r-uncommon{color:var(--r-uncommon)}.r-rare{color:var(--r-rare)}.r-epic{color:var(--r-epic)}.r-legendary{color:var(--r-legendary)}
.set-row .cards,.cards{display:grid;grid-template-columns:repeat(auto-fill,minmax(150px,1fr));gap:14px}.cc-card{margin:0;position:relative}.cc-card img{width:100%;border-radius:10px;display:block}.cc-card figcaption{display:flex;flex-direction:column;gap:2px;font-size:13px;margin-top:6px}
.card-back{aspect-ratio:240/336;border-radius:10px;border:2px dashed var(--line);background:repeating-linear-gradient(45deg,var(--sand) 0 10px,var(--paper) 10px 20px)}.cc-card.missing{opacity:.75}
.new{position:absolute;top:-6px;right:-6px;background:#c0392b;color:#fff;font:700 11px var(--font);padding:3px 7px;border-radius:999px}
#toasts{position:fixed;left:50%;bottom:20px;transform:translateX(-50%);z-index:250;display:flex;flex-direction:column;gap:8px;width:min(480px,calc(100% - 24px));pointer-events:none}.toast{background:var(--ink);color:var(--paper);padding:10px 14px;border-radius:12px;box-shadow:0 8px 24px #0004}
footer{padding:20px 3vw;color:var(--muted);font-size:12px;text-align:center}
@media (max-width:1000px){.play-layout{grid-template-columns:minmax(0,1fr)}.city-wrap{grid-template-columns:1fr}.district-list{grid-template-columns:repeat(2,1fr)}}
@media (max-width:600px){main{padding:12px 10px 80px}.pin{display:none}.district-list{grid-template-columns:1fr}.brand{font-size:20px}nav.nav{position:fixed;bottom:0;left:0;right:0;z-index:60;border-top:1px solid var(--line);padding-bottom:calc(6px + env(safe-area-inset-bottom))}.reveal-card{flex-direction:column}}
html.rm *,html.rm *:before,html.rm *:after{animation:none!important;transition:none!important}
@media (prefers-reduced-motion:reduce){*,*:before,*:after{animation:none!important;transition:none!important}}
/* engine badge: which engine really answers */
.eng-badge{display:inline-block;font-size:.78rem;padding:.12rem .5rem;border-radius:999px;margin-left:.5rem;background:#e6efe9;color:#24463a;font-weight:600;vertical-align:middle}
.eng-badge.eng-starting{background:#eef0f4;color:#4a5568}
.eng-badge.eng-builtin{background:#fff1d6;color:#7a4b00}
.sr-file{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0);clip-path:inset(50%);white-space:nowrap}
label.btn:focus-within{outline:3px solid #2f6fdf;outline-offset:2px}
.offline-status.ok{color:#1d6b43}.offline-status.warn{color:#8a5a00}
.ccb .sq.mk-good{box-shadow:inset 0 0 0 5px #2e9e62}
#tr-panel .good{color:#1d6b43;font-weight:600;background:#e4f4ea;border-radius:8px;padding:.45rem .6rem}
[data-theme="night"] #tr-panel .good{background:#1f3a2c;color:#bfe8cf}