/* Панель заданий песочницы поверх настоящей доски (onboarding/sandbox/board.html).
   Свой префикс .sbx, чтобы не задевать стили доски. */
.sbx{position:fixed;left:14px;bottom:14px;z-index:400;width:min(360px,calc(100vw - 28px));max-height:min(70vh,640px);display:flex;flex-direction:column;
  border:1px solid #f0c9a8;border-radius:14px;background:#fffdf9;box-shadow:0 18px 50px rgba(43,33,24,.22);font:14px/1.4 -apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,sans-serif;color:#2b2118}
.sbx.min{width:auto;max-height:none}
.sbxHead{display:flex;align-items:center;gap:8px;padding:10px 12px;border-bottom:1px solid #f3e4d8;cursor:pointer;user-select:none}
.sbx.min .sbxHead{border-bottom:0}
.sbxHead b{font-size:15px}
.sbxCount{margin-left:auto;font-weight:800;color:#16803c;white-space:nowrap}
.sbxToggle{border:0;background:none;font:700 16px inherit;cursor:pointer;color:#8c7c70;padding:0 2px}
.sbxBody{overflow:auto;padding:10px 12px 12px}
.sbx.min .sbxBody{display:none}
.sbxNote{margin:0 0 8px;color:#6b5b50;font-size:13px}
.sbxModes{display:flex;gap:6px;margin:0 0 10px}
.sbxModes a{flex:1;text-align:center;border:1px solid #f0c9a8;border-radius:9px;padding:5px 6px;text-decoration:none;color:#a04d13;font-weight:700;font-size:13px}
.sbxModes a.on{background:#d97706;border-color:#d97706;color:#fff}
.sbxList{list-style:none;margin:0;padding:0}
.sbxItem{border-top:1px solid #f3e4d8;padding:7px 0}
.sbxItem:first-child{border-top:0}
.sbxItem .row{display:flex;gap:8px;align-items:flex-start;cursor:pointer}
.sbxItem .box{flex:none;display:grid;place-items:center;width:20px;height:20px;border:1.5px solid #d7c4b5;border-radius:6px;font-size:13px;color:#fff;margin-top:1px}
.sbxItem.done .box{background:#16803c;border-color:#16803c}
.sbxItem.done .txt{color:#16803c}
.sbxItem.flash{animation:sbxFlash 1.4s ease-out}
@keyframes sbxFlash{0%{background:#e9f7ee}100%{background:transparent}}
.sbxHint{display:none;margin:5px 0 0 28px;padding:7px 9px;border-radius:9px;background:#fff4e0;color:#5a4636;font-size:13px}
.sbxItem.open .sbxHint{display:block}
.sbxFoot{margin-top:10px;display:flex;gap:8px;flex-wrap:wrap}
.sbxFoot a,.sbxFoot button{border:1px solid #f0c9a8;border-radius:9px;padding:5px 9px;background:#fff;color:#a04d13;font:700 12px inherit;text-decoration:none;cursor:pointer}
.sbxBanner{position:fixed;top:0;left:50%;transform:translateX(-50%);z-index:400;padding:3px 12px;border-radius:0 0 10px 10px;background:#7654c8;color:#fff;font:700 12px/1.4 -apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,sans-serif;box-shadow:0 4px 12px rgba(0,0,0,.15)}