/* Reference-inspired white tiles and four-pixel gaps inside the shared Aero chrome. */
#huarong-window{--hr-board:clamp(300px,calc(100dvh - 510px),386px);width:min(438px,calc(100vw - 24px));max-height:calc(100dvh - 220px);display:flex;flex-direction:column}
#huarong-window>.titlebar{flex-shrink:0}#huarong-window>.window-interior{display:flex;flex-direction:column;min-width:0;min-height:0;overflow:hidden}#huarong-window .menubar,#huarong-window .window-status{flex-shrink:0}#huarong-window .window-status{gap:8px}#hr-status{overflow:hidden;text-overflow:ellipsis}.hr-app-icon{display:grid;place-content:center;width:19px;height:19px;border:1px solid #5184b6;border-radius:3px;background:linear-gradient(#fff,#dceeff);box-shadow:inset 0 0 0 1px #fff8;color:#2f78c2;font:bold 10px Arial}.hr-export{margin-left:auto}.hr-play{padding:14px 16px 13px;overflow:auto;background:linear-gradient(135deg,#fff,#f6f9fc);color:#30475e;scrollbar-width:thin;scrollbar-color:#bdcddc #f1f5f9}.hr-heading{display:flex;align-items:center;justify-content:space-between;gap:10px;margin-bottom:11px}.hr-heading h2{font-size:21px;font-weight:600;letter-spacing:1px;margin:0;color:#294962}.hr-heading p{font-size:10px;color:#8a9aaa;margin:5px 0 0}.hr-size-badge{background:#eaf3ff;border:1px solid #d1e2f6;color:#4d8dd0;border-radius:4px;padding:5px 10px;font-size:12px;white-space:nowrap}.hr-stats{display:grid;grid-template-columns:1fr 1fr;gap:9px;margin-bottom:12px}.hr-stats>div{display:flex;align-items:center;justify-content:space-between;gap:6px;padding:9px 12px;border:1px solid #e3ebf3;border-radius:5px;background:#f1f6fc}.hr-stats span{font-size:11px;color:#8094a8}.hr-stats output{font:600 19px/1.1 "Segoe UI",Arial,sans-serif;font-variant-numeric:tabular-nums;color:#3983ce}
.hr-board-wrap{position:relative;width:min(100%,var(--hr-board));margin:0 auto}.hr-board{position:relative;width:100%;aspect-ratio:1;border:2px solid #cbd5e0;background:#cbd5e0;border-radius:6px;box-shadow:inset 0 1px 4px #7a8a9b16,0 3px 9px #3d5c7710;touch-action:none;user-select:none;-webkit-user-select:none;-webkit-touch-callout:none;outline-offset:3px}.hr-tile{position:absolute;display:grid;place-items:center;margin:0;padding:0;border:1px solid #e8edf4;border-radius:4px;background:linear-gradient(#fff,#fbfdff);box-shadow:0 1px 3px #3d59721f;color:#30445a;font-family:"Segoe UI",Arial,sans-serif;font-weight:650;line-height:1;font-variant-numeric:tabular-nums;touch-action:none;user-select:none;cursor:default;-webkit-tap-highlight-color:transparent}.hr-tile[data-movable="true"]{cursor:grab}.hr-tile[data-movable="true"]:hover{border-color:#83b6e7;background:#f4f9ff}.hr-tile.hr-dragging{cursor:grabbing;border-color:#68a5e1;background:#f2f8ff;box-shadow:0 3px 12px #3b82f633;z-index:4;will-change:transform}.hr-tile:focus-visible{outline:2px solid #3b82f6;outline-offset:-3px;z-index:2}.hr-show-hints .hr-tile[data-correct="true"]{background:#eaf5ff;border-color:#d6eafa;color:#468ed2}.hr-best-row{display:flex;align-items:center;justify-content:space-between;gap:8px;font-size:10px;color:#8495a6;margin:10px 0 11px;line-height:1.5}.hr-best-row>span{min-width:0}.hr-best-row label{display:flex;align-items:center;gap:3px;white-space:nowrap;color:#8297aa}.hr-best-row input{margin:0;accent-color:#3b82f6}.hr-size-control{padding:8px 10px;border:1px solid #e3ebf3;background:#f6f9fd;border-radius:4px;margin-bottom:10px}.hr-size-control label{display:flex;justify-content:space-between;align-items:center;font-size:11px;color:#70879d;margin-bottom:5px}.hr-size-control strong{font-size:11px;color:#4b86c1;font-weight:600}.hr-size-control input{display:block;width:100%;height:10px;margin:0;accent-color:#3b82f6;cursor:pointer}.hr-bottom{display:flex;align-items:center;justify-content:space-between;gap:8px}.hr-bottom>span{color:#91a0b0;font-size:10px;line-height:1.6}.hr-bottom .aero-button{font-size:11px;min-width:80px;padding-left:9px;padding-right:9px}
.hr-overlay{position:absolute;inset:0;z-index:10;display:grid;place-items:center;border:1px solid #a4bfda;border-radius:6px;padding:18px;background:#f3f8ffed;backdrop-filter:blur(3px)}.hr-overlay-card{max-width:290px;max-height:100%;overflow:auto;scrollbar-width:thin;text-align:center;color:#57738e}.hr-overlay-icon{display:inline-grid;place-items:center;min-width:44px;height:40px;border-radius:8px;background:linear-gradient(#7eb8ef,#488bce);box-shadow:inset 0 1px #fffa;color:white;font:bold 24px/1 Arial;padding:0 8px}.hr-overlay h3{font-size:21px;line-height:1.4;font-weight:600;color:#335e84;margin:12px 0 9px}.hr-overlay p{font-size:11px;line-height:1.85;white-space:pre-line;margin:0 0 17px}.hr-overlay-actions{display:flex;justify-content:center;gap:7px;flex-wrap:wrap}.hr-overlay .aero-button{font-size:11px;padding:5px 10px}.hr-overlay .primary{background:linear-gradient(#f4fbff,#d3e9fc);border-color:#6b9bcb}
#huarong-window.maximized{width:min(508px,calc(100vw - 24px));--hr-board:clamp(310px,calc(100dvh - 490px),448px);max-height:calc(100dvh - 200px)}
@media(max-width:480px){#huarong-window{width:calc(100vw - 24px);max-height:calc(100dvh - 220px);--hr-board:clamp(300px,calc(100dvh - 490px),386px)}.hr-play{padding:12px 10px}.hr-menubar .menu-trigger{padding-left:6px;padding-right:6px;font-size:11px}.hr-heading h2{font-size:19px}.hr-heading{margin-bottom:10px}.hr-heading p{font-size:9px}.hr-stats>div{padding:8px 10px}.hr-stats output{font-size:17px}.hr-best-row{font-size:9px}.hr-bottom>span{font-size:9px}.hr-overlay{padding:14px}.hr-overlay h3{font-size:19px}.hr-overlay p{font-size:11px}}
@media(prefers-reduced-motion:reduce){.hr-tile.hr-dragging{will-change:auto}}