*{box-sizing:border-box}
:root{--bg:#101d27;--panel:#1b303e;--line:#3b5263;--ink:#edf5f7;--muted:#bfd0db;--accent:#f2b84b;--ok:#5fdca5;--light:#e8dabf;--dark:#70543d;--frame:#805e3d;--frameText:#fff6e4;--red:#cf553d;--blue:#359ebc}
html,body{max-width:100%;overflow-x:hidden}
body{font:15px/1.5 system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;background:var(--bg);color:var(--ink);margin:0;-webkit-text-size-adjust:100%}
h1{margin:0;font-size:22px;letter-spacing:.2px}h2{font-size:18px;margin:0 0 8px}h3{font-size:15px;margin:18px 0 4px;color:var(--accent)}
.top{display:flex;align-items:center;justify-content:space-between;gap:12px;padding:14px 18px;background:#1c3442;border-bottom:1px solid var(--line)}
.brand{display:flex;gap:12px;align-items:center;min-width:0}.brand small{color:var(--muted);display:block}
.cap{flex:none;width:34px;height:34px;border-radius:50%;background:var(--red);border:3px dashed #ffffffaa;box-shadow:0 2px 3px #0008}
.net{flex:none;font-size:12px;padding:4px 9px;border-radius:99px;border:1px solid var(--line);color:var(--muted)}
.net.on{color:#0c2a1e;background:var(--ok);border-color:var(--ok)}
main{max-width:1180px;margin:18px auto;padding:0 14px;display:grid;grid-template-columns:minmax(0,680px) minmax(0,1fr);gap:18px}
main>section,main>aside{min-width:0}
.card{background:var(--panel);padding:16px;border:1px solid var(--line);border-radius:12px;margin-bottom:16px;min-width:0}
.card.join{border-color:var(--accent);box-shadow:0 0 0 3px #f2b84b33}
.card.room{border-color:#4f8aa3}
button,input,select,textarea{font:inherit;max-width:100%;padding:9px 11px;background:#132532;color:var(--ink);border:1px solid #577181;border-radius:8px}
button{cursor:pointer;background:#31586b;touch-action:manipulation}button:hover{filter:brightness(1.12)}button:disabled{opacity:.45;cursor:default;filter:none}
button.primary{background:var(--accent);color:#23180a;border-color:var(--accent);font-weight:650}
button.ghost{background:transparent}
button:focus-visible,input:focus-visible,select:focus-visible{outline:3px solid #ffe26b;outline-offset:2px}
select,input:not([type=range]):not([type=color]):not([type=file]){width:100%;min-width:0}
input[type=file]{font-size:13px;width:100%;border-style:dashed}
label{display:block;margin:12px 0 5px}input[type=range]{width:100%;padding:0}input[type=color]{height:36px;width:64px;padding:2px}
small,.muted{color:var(--muted)}p,li{line-height:1.6}
.row{display:flex;gap:8px;flex-wrap:wrap;align-items:center;margin:12px 0}.row input{flex:1 1 140px;width:auto}
.msg{min-height:1.2em;color:var(--accent);margin:6px 0 0}
.statusbar{display:flex;flex-wrap:wrap;gap:4px 12px;align-items:baseline;margin-bottom:10px}
#status{font-size:20px;font-weight:700}#role{letter-spacing:.6px;text-transform:uppercase;font-size:12px}
#hint,#counts,#status,h1,h2,p,li,small{overflow-wrap:anywhere}

/* ---------- branded frame ---------- */
#frameWrap{container-type:inline-size}
#frame{--pad:10px;--side:0px;border-radius:12px;padding:0 var(--pad);background:var(--frame);color:var(--frameText);box-shadow:inset 0 0 0 1px #0004,0 6px 18px #0006}
#frame.w0{--pad:5px}#frame.w2{--pad:14px}
#frame.s-wood{background:repeating-linear-gradient(92deg,#0000 0 9px,#0000001a 9px 11px,#0000 11px 23px,#ffffff12 23px 24px),linear-gradient(180deg,#ffffff1c,#0000 40%,#00000024),var(--frame)}
#frame.s-stripes{background:repeating-linear-gradient(45deg,#0000 0 14px,#00000030 14px 28px),var(--frame)}
#frame.s-dots{background:radial-gradient(circle at 50% 50%,#ffffff2a 0 2.5px,#0000 3px) 0 0/16px 16px,var(--frame)}
#frame.s-image{background:var(--frameImg,none) center/cover,var(--frame)}
.band{display:flex;align-items:center;justify-content:center;gap:10px;text-align:center;font-weight:650;min-height:calc(var(--pad) + 6px);padding:calc(var(--pad)*.6) 4px;overflow-wrap:anywhere;text-shadow:0 1px 2px #0009}
.band span:empty{display:none}
.band-top{font-size:clamp(14px,3.6vw,20px)}
.band-bottom{font-size:clamp(12px,3vw,16px);font-weight:600}
#outsideLogo,#frameLogo{display:block;max-width:100%;height:auto;object-fit:contain}
#outsideLogo:not([src]),#frameLogo:not([src]){display:none}
#frameLogo{max-height:calc(46px * var(--flogo,1))}
.frame-mid{display:grid;grid-template-columns:var(--side) minmax(0,1fr) var(--side);align-items:stretch}
.frame-mid>.side:first-child{grid-column:1}.frame-mid>.side:last-child{grid-column:3}.frame-mid>#surface{grid-column:2;grid-row:1}.frame-mid>.side{grid-row:1}
.side{display:none;align-items:center;justify-content:center;overflow:hidden}
.sideText{writing-mode:vertical-rl;transform:rotate(180deg);font-weight:700;letter-spacing:3px;text-transform:uppercase;font-size:14px;white-space:nowrap;text-shadow:0 1px 2px #0009}
.side:last-child .sideText{transform:none}
@container (min-width:560px){#frame.has-side{--side:46px}#frame.has-side.w2{--side:64px}#frame.has-side .side{display:flex}}

#surface{position:relative;isolation:isolate;overflow:hidden;min-width:0;border-radius:3px;box-shadow:0 0 0 2px #0005}
#board{display:grid;grid-template-columns:repeat(8,minmax(0,1fr));aspect-ratio:1;position:relative;z-index:0;width:100%}
#watermark{position:absolute;z-index:1;pointer-events:none;transform:translate(-50%,-50%);object-fit:contain;height:auto}
#watermark:not([src]){display:none}
.sq{position:relative;padding:0;border:0;border-radius:0;background:var(--light);aspect-ratio:1;display:grid;place-items:center;min-width:0;min-height:0;overflow:hidden}
.sq:hover{filter:none}.sq.dark{background:var(--dark)}
.sq.selected:before{content:'';position:absolute;inset:0;border:4px solid #ffe26b;z-index:3;pointer-events:none}
.sq.target:after{content:'';width:24%;height:24%;background:#65ffc0;border:2px solid #14362a;border-radius:50%;position:absolute;z-index:3;pointer-events:none}
.sq.movable .piece{box-shadow:0 0 0 3px #ffe26b99,0 3px 3px #0008}
.sq.last{box-shadow:inset 0 0 0 3px #ffffff55}
.piece{position:relative;z-index:2;width:79%;height:79%;border-radius:50%;border:4px dashed #ffffff88;box-shadow:0 3px 3px #0008;overflow:hidden;display:grid;place-items:center;pointer-events:none}
.piece img{position:absolute;left:50%;top:50%;transform:translate(-50%,-50%);object-fit:contain;max-width:none}
.piece b{color:#fff;text-shadow:0 1px 3px #000;font-size:clamp(12px,3vw,22px)}
.king{position:absolute;z-index:4;bottom:0;right:0;background:#ffec9b;color:#302000;border-radius:50%;width:46%;height:46%;display:grid;place-items:center;font-size:clamp(11px,2.8vw,22px)}

.btns button{flex:1 1 auto}
#record{max-height:140px;overflow:auto;line-height:1.8}
table{width:100%;border-collapse:collapse}td,th{padding:7px 3px;text-align:left;border-bottom:1px solid #3d5666}
summary{cursor:pointer;font-size:18px;font-weight:650}
output{color:#8fe7c4}
.modes{display:grid;gap:10px;margin-top:14px}
.mode{display:flex;flex-direction:column;align-items:flex-start;text-align:left;gap:2px;width:100%;padding:12px 14px}
.mode small{color:inherit;opacity:.8}
.mode-wrap{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,150px);gap:8px;align-items:stretch}
.seats{display:grid;gap:8px;margin:6px 0}
.seat{display:flex;align-items:center;gap:10px;background:#132532;border:1px solid var(--line);border-radius:8px;padding:8px 10px;min-width:0}
.seat span:nth-child(2){flex:1;min-width:0;overflow-wrap:anywhere}
.chip{flex:none;width:18px;height:18px;border-radius:50%;border:2px dashed #fff9}.chip.red{background:var(--red)}.chip.blue{background:var(--blue)}
.dot{flex:none;width:10px;height:10px;border-radius:50%;background:#6b7d88}.dot.on{background:var(--ok)}
.linkbox input{font-size:13px;color:var(--muted)}
#toast{position:fixed;left:50%;bottom:calc(18px + env(safe-area-inset-bottom));transform:translateX(-50%) translateY(20px);opacity:0;transition:.25s;background:#f2e6c9;color:#2a1d08;padding:10px 16px;border-radius:10px;font-weight:600;max-width:92vw;pointer-events:none;z-index:50}
#toast.show{opacity:1;transform:translateX(-50%)}
.foot{text-align:center;padding:10px 0 28px;font-size:13px}
@media(max-width:820px){
  main{grid-template-columns:minmax(0,1fr);margin:10px auto;padding:0 8px;gap:10px}
  .top{padding:12px}h1{font-size:19px}.brand small{font-size:12px}
  .card{padding:12px}#status{font-size:17px}
  .btns button{flex:1 1 calc(50% - 8px)}
  .piece{border-width:2px}
}
@media(prefers-reduced-motion:reduce){*{transition:none!important}}