:root{--bg:#f6f4ef;--ui:#fffdf9;--ink:#222;--muted:#6a665e;--line:#e4dccb;--hover:#f1ece0;--accent:#3b82f6;--danger:#dc2626;--shadow:0 6px 24px rgba(40,30,10,.14),0 1px 3px rgba(40,30,10,.1);--r:14px}
@media (prefers-color-scheme:dark){:root{--ui:#2a2825;--ink:#f1ede4;--muted:#a8a296;--line:#3d3a35;--hover:#38352f;--shadow:0 6px 24px rgba(0,0,0,.5),0 1px 3px rgba(0,0,0,.4)}}
*{box-sizing:border-box}
[hidden]{display:none!important}
html,body{margin:0;height:100%;overflow:hidden;overscroll-behavior:none;font:14px/1.4 system-ui,-apple-system,"Segoe UI",Roboto,Helvetica,Arial,sans-serif;color:var(--ink);background:var(--bg);-webkit-user-select:none;user-select:none;-webkit-tap-highlight-color:transparent}
button,input,select{font:inherit;color:inherit}
button{cursor:pointer}
:focus-visible{outline:2px solid var(--accent);outline-offset:2px}
#board{position:fixed;inset:0;width:100%;height:100%;display:block;touch-action:none;outline:0}

.panel,.grp{background:var(--ui);border:1px solid var(--line);border-radius:var(--r);box-shadow:var(--shadow)}
.panel{position:fixed;z-index:10}
.grp{display:flex;align-items:center;padding:3px}

/* buttons */
.ib{display:inline-flex;align-items:center;justify-content:center;width:40px;height:40px;padding:0;border:0;border-radius:10px;background:transparent;color:var(--ink);flex:none}
.ib:hover{background:var(--hover)}
.ib:disabled{opacity:.35;cursor:default;background:transparent}
.ib.active{background:var(--accent);color:#fff}
.ic{width:22px;height:22px;fill:none;stroke:currentColor;stroke-width:1.8;stroke-linecap:round;stroke-linejoin:round;pointer-events:none}
.btn{padding:9px 14px;border-radius:10px;border:1px solid var(--line);background:var(--ui);color:var(--ink);cursor:pointer}
.btn:hover{background:var(--hover)}
.btn.primary{background:var(--accent);border-color:var(--accent);color:#fff}
.btn.primary:hover{filter:brightness(1.08)}
.btn.danger{background:var(--danger);border-color:var(--danger);color:#fff}
.link{border:0;background:none;padding:0;color:var(--accent);text-decoration:underline;cursor:pointer;font-size:12px}
.mobile-only{display:none}

/* top left */
#topleft{left:12px;top:12px;display:flex;align-items:center;gap:4px;padding:3px 10px 3px 3px}
.backlink{color:var(--muted);text-decoration:none;font-size:13px;white-space:nowrap;padding:0 6px}
.backlink:hover{color:var(--ink);text-decoration:underline}
.title{width:190px;border:1px solid transparent;border-radius:8px;background:transparent;padding:6px 8px;font-weight:600;-webkit-user-select:text;user-select:text}
.title:hover{border-color:var(--line)}
.title:focus{border-color:var(--accent);outline:0}

/* menu */
.menu{left:12px;top:64px;width:310px;padding:6px}
.mi{display:flex;align-items:center;gap:10px;width:100%;padding:9px 10px;border:0;border-radius:8px;background:none;color:var(--ink);text-align:left;text-decoration:none}
.mi:hover{background:var(--hover)}
.mi .ic{width:18px;height:18px}
.mi kbd{margin-left:auto;font:11px ui-monospace,monospace;color:var(--muted)}
.msep{height:1px;background:var(--line);margin:6px 4px}
.mrow{display:flex;align-items:center;justify-content:space-between;gap:10px;padding:6px 10px;font-size:13px}
.seg{display:inline-flex;border:1px solid var(--line);border-radius:8px;overflow:hidden}
.seg button{border:0;background:none;padding:5px 9px;font-size:12px}
.seg button+button{border-left:1px solid var(--line)}
.seg button.on{background:var(--accent);color:#fff}

/* top right */
#topright{position:fixed;right:12px;top:12px;z-index:10;display:flex;gap:8px;align-items:center}
#topright .btn{height:46px;box-shadow:var(--shadow);border-radius:var(--r)}
.zval{min-width:56px;height:40px;border:0;background:none;border-radius:10px;font-variant-numeric:tabular-nums}
.zval:hover{background:var(--hover)}

/* tools */
#tools{left:12px;top:50%;transform:translateY(-50%);display:flex;flex-direction:column;gap:2px;padding:6px;max-height:calc(100dvh - 24px);overflow-y:auto;scrollbar-width:none}
.sep{height:1px;background:var(--line);margin:4px 6px;flex:none}
#fly{left:68px;display:grid;grid-template-columns:repeat(2,40px);gap:2px;padding:6px}

/* props */
#props{right:12px;top:72px;width:244px;max-height:calc(100dvh - 160px);overflow-y:auto;padding:12px 14px 6px}
.ps{margin-bottom:14px}
.ps h4{margin:0 0 7px;font-size:11px;letter-spacing:.07em;text-transform:uppercase;color:var(--muted);font-weight:600}
.sw{display:flex;flex-wrap:wrap;gap:7px}
.swatch{width:24px;height:24px;border-radius:50%;border:1px solid var(--line);padding:0;position:relative}
.swatch.on{box-shadow:0 0 0 2px var(--ui),0 0 0 4px var(--accent)}
.swatch.none{background:linear-gradient(135deg,transparent 45%,#ef4444 45%,#ef4444 55%,transparent 55%),var(--ui)}
.custom{display:flex;gap:8px;margin-top:9px;align-items:center}
.custom input[type=color]{width:34px;height:30px;padding:0;border:1px solid var(--line);border-radius:8px;background:none;cursor:pointer}
.hex{flex:1;min-width:0;padding:6px 8px;border:1px solid var(--line);border-radius:8px;background:transparent;font:13px ui-monospace,monospace;-webkit-user-select:text;user-select:text}
.hex:focus{border-color:var(--accent);outline:0}
.recent{display:flex;gap:6px;margin-top:8px;flex-wrap:wrap}
.recent .swatch{width:20px;height:20px}
.rng .rh{display:flex;justify-content:space-between;font-size:12px;color:var(--muted);margin-bottom:3px}
.rng input{width:100%;accent-color:var(--accent);margin:0}
.rng output{font-variant-numeric:tabular-nums;color:var(--ink)}
.row{display:flex;gap:4px}
.row .sb{flex:1;height:34px;border:1px solid var(--line);border-radius:8px;background:none;font-size:12px;display:flex;align-items:center;justify-content:center}
.row .sb.on{background:var(--accent);border-color:var(--accent);color:#fff}
.row .sb:hover:not(.on){background:var(--hover)}
.row .sb .ic{width:18px;height:18px}
select.sel{width:100%;padding:7px 8px;border:1px solid var(--line);border-radius:8px;background:var(--ui);margin-bottom:6px}
.arr{display:grid;grid-template-columns:repeat(6,1fr);gap:4px}
.arr .ib{width:100%;height:34px;border:1px solid var(--line);border-radius:8px}
.arr .ib .ic{width:18px;height:18px}

/* status + toast */
#status{left:12px;bottom:12px;display:flex;align-items:center;gap:8px;padding:7px 12px;font-size:12px;color:var(--muted);max-width:calc(100vw - 24px)}
#tools~#status{left:12px}
.dot{width:8px;height:8px;border-radius:50%;background:#22c55e;flex:none}
.dot.warn{background:#f59e0b}.dot.bad{background:var(--danger)}
#saveTxt.bad{color:var(--danger);font-weight:600}
#toast{position:fixed;left:50%;bottom:64px;transform:translateX(-50%);z-index:50;background:#222;color:#fff;padding:10px 14px;border-radius:12px;box-shadow:var(--shadow);display:flex;gap:12px;align-items:center;max-width:90vw}
#toast .link{color:#8ab4ff}
#drop{position:fixed;inset:0;z-index:60;background:rgba(59,130,246,.18);border:3px dashed var(--accent);display:flex;align-items:center;justify-content:center;font-size:20px;font-weight:600;pointer-events:none}

/* text editor */
#te{position:fixed;z-index:20;margin:0;padding:0;border:0;outline:1.5px dashed var(--accent);outline-offset:4px;background:transparent;resize:none;overflow:hidden;white-space:pre;-webkit-user-select:text;user-select:text}

/* dialogs */
dialog.modal{border:0;border-radius:18px;padding:22px 24px;width:min(92vw,540px);max-height:88dvh;overflow:auto;background:var(--ui);color:var(--ink);box-shadow:0 20px 60px rgba(0,0,0,.35);-webkit-user-select:text;user-select:text}
dialog.modal::backdrop{background:rgba(20,15,5,.5)}
dialog.modal h2{margin:0 0 10px;font:600 20px/1.25 Georgia,"Times New Roman",serif}
dialog.modal p{margin:0 0 10px;line-height:1.55}
dialog.modal ul{margin:0 0 10px;padding-left:20px;line-height:1.55}
dialog.modal li{margin-bottom:5px}
.mbtns{display:flex;gap:8px;justify-content:flex-end;flex-wrap:wrap;margin-top:18px}
.warnbox{background:#fff6e0;color:#5b4208;border:1px solid #f1d58a;border-radius:10px;padding:10px 12px;margin:0 0 12px}
@media (prefers-color-scheme:dark){.warnbox{background:#3a2f12;color:#f3dfa6;border-color:#6b5520}}
.fld{margin:0 0 12px;border:0;padding:0}
.fld legend{font-size:12px;text-transform:uppercase;letter-spacing:.06em;color:var(--muted);margin-bottom:6px;padding:0}
.fld label{display:inline-flex;align-items:center;gap:6px;margin-right:14px;margin-bottom:4px}
.fld label.off{opacity:.4}
table.keys{width:100%;border-collapse:collapse;font-size:13px}
table.keys td{padding:4px 6px;border-bottom:1px solid var(--line)}
table.keys td:first-child{font:12px ui-monospace,monospace;white-space:nowrap;color:var(--muted);width:42%}

/* phones and small screens */
@media (max-width:760px){
  .backlink{display:none}
  #topleft{padding-right:6px}
  .title{width:92px;padding:6px 4px}
  #topleft .ib,#topright .ib{width:38px}
  #topleft{gap:0;padding-right:4px}
  .menu{width:min(330px,calc(100vw - 24px))}
  #dlBtn{display:none}
  #topright{top:12px}
  .zval{min-width:44px}
  #tools{left:0;right:0;top:auto;bottom:0;transform:none;flex-direction:row;overflow-x:auto;overflow-y:hidden;border-radius:16px 16px 0 0;padding:6px 8px calc(6px + env(safe-area-inset-bottom));max-height:none;justify-content:flex-start;gap:2px}
  #tools .sep{width:1px;height:auto;margin:6px 4px;align-self:stretch}
  .ib{width:44px;height:44px}
  .mobile-only{display:inline-flex}
  #fly{left:8px;right:8px;bottom:72px;top:auto!important;display:flex;justify-content:center;flex-wrap:wrap}
  #props{left:8px;right:8px;top:auto;bottom:72px;width:auto;max-height:46dvh}
  #props:not(.open){display:none}
  #status{left:12px;bottom:76px;padding:5px 10px}
  #status .link{display:none}
  #props.open~#status{display:none}
  .mi kbd{display:none}
  #toast{bottom:130px}
}
@media (prefers-reduced-motion:reduce){*{transition:none!important;animation:none!important}}