:root{--bg1: #1b2350;--bg2: #070a1a;--ink: #f3f5ff;--dim: #98a2d0;--gold: #ffc83d;--green: #62e08a;--panel: rgba(18, 24, 54, .72);--line: rgba(255,255,255,.14)}*{box-sizing:border-box;-webkit-tap-highlight-color:transparent}html,body{margin:0;height:100%;overflow:hidden;color:var(--ink);font:15px/1.35 -apple-system,BlinkMacSystemFont,Segoe UI,Roboto,sans-serif;background:radial-gradient(ellipse at 50% 38%,var(--bg1),var(--bg2) 70%)}#gl{position:fixed;top:0;right:0;bottom:0;left:0;width:100%;height:100%;display:block;touch-action:none;user-select:none;-webkit-user-select:none}.hidden{display:none!important}button{font:inherit;color:var(--ink);cursor:pointer}button:focus-visible,#insetFrame:focus-visible,a:focus-visible{outline:3px solid var(--gold);outline-offset:2px}#top{position:fixed;top:0;left:0;right:0;padding:10px 14px 0;pointer-events:none}#titleRow{display:flex;align-items:baseline;gap:10px}#titleRow b{font-size:18px;letter-spacing:-.01em}#puzzleNo{color:var(--dim);font-size:13px;flex:1}#toSearch{pointer-events:auto;color:var(--dim);font-size:12px;text-decoration:none;padding:6px 2px}#stats{display:flex;justify-content:space-between;align-items:center;margin-top:6px}#rowsBox{display:flex;align-items:center;gap:8px}#pips{display:flex;align-items:center;gap:3px}#pips i{width:12px;height:12px;border-radius:50%;border:2px solid rgba(255,255,255,.35);display:block;transition:background .15s,border-color .15s}#pips i.on{background:var(--green);border-color:var(--green);box-shadow:0 0 0 2px #62e08a40;position:relative}#pips i.on:after{content:"✓";position:absolute;top:0;right:0;bottom:0;left:0;font-size:8px;line-height:8px;text-align:center;color:#07270f;font-style:normal;font-weight:900}#pips u{width:6px;display:block}#rowsTxt,#movesTxt{font-weight:700;font-variant-numeric:tabular-nums;white-space:nowrap;font-size:14px}#movesTxt.over{color:#ff9c8a}#caption{position:fixed;top:92px;left:50%;transform:translate(-50%);max-width:min(360px,calc(100% - 28px));text-align:center;padding:8px 14px;border-radius:12px;background:var(--gold);color:#2a2100;font-weight:800;opacity:0;pointer-events:none;transition:opacity .2s}#caption.show{opacity:1}#ghost{position:fixed;left:0;top:0;font-size:34px;opacity:0;pointer-events:none;z-index:4;filter:drop-shadow(0 3px 6px #000a)}#ghost.run{animation:ghost 1.4s ease-in-out infinite}@keyframes ghost{0%{opacity:0;transform:translate(var(--x0),var(--y0))}15%{opacity:1}75%{opacity:1;transform:translate(var(--x1),var(--y1))}to{opacity:0;transform:translate(var(--x1),var(--y1))}}#hintArrow{position:fixed;left:0;top:0;width:0;height:0;pointer-events:none;opacity:0;z-index:4}#hintArrow.show{opacity:1}#hintArrow:before{content:"";position:absolute;left:0;top:-3px;width:var(--len);height:6px;border-radius:3px;background:var(--gold);box-shadow:0 0 10px #ffc83dcc}#hintArrow:after{content:"";position:absolute;left:calc(var(--len) - 4px);top:-11px;border-left:18px solid var(--gold);border-top:11px solid transparent;border-bottom:11px solid transparent}#insetFrame{position:fixed;border:2px solid var(--line);border-radius:14px;pointer-events:auto;cursor:pointer;background:transparent}#insetLabel{position:absolute;left:4px;top:-18px;font-size:10px;letter-spacing:.06em;text-transform:uppercase;color:var(--dim);white-space:nowrap}#controls{position:fixed;right:12px;bottom:14px;display:flex;gap:8px}#controls button{width:56px;height:56px;border-radius:16px;border:1px solid var(--line);background:var(--panel);font-size:20px;line-height:1;display:grid;place-items:center;padding:4px 0 2px;-webkit-backdrop-filter:blur(8px);backdrop-filter:blur(8px);touch-action:manipulation}#controls button small{display:block;font-size:10px;color:var(--dim);margin-top:2px}#controls button:disabled{opacity:.35;cursor:default}#controls button:active:not(:disabled){background:#ffc83d4d}#arrows{position:fixed;left:50%;bottom:84px;transform:translate(-50%);display:flex;gap:10px;padding:8px;border-radius:18px;background:var(--panel);border:1px solid var(--line);-webkit-backdrop-filter:blur(8px);backdrop-filter:blur(8px);z-index:3}#arrows button{width:48px;height:48px;border-radius:14px;border:1px solid var(--line);background:#ffffff14;font-size:22px;touch-action:manipulation}#arrows button:active{background:#ffc83d66}#kbd{position:fixed;left:50%;bottom:84px;transform:translate(-50%);padding:6px 12px;border-radius:12px;background:var(--panel);border:1px solid var(--line);font-size:12px;color:var(--dim)}#win{position:fixed;left:50%;top:42%;transform:translate(-50%,-50%);width:min(340px,calc(100% - 28px));text-align:center;padding:22px 20px 18px;border-radius:22px;background:var(--panel);border:1px solid var(--line);-webkit-backdrop-filter:blur(12px);backdrop-filter:blur(12px);z-index:6}#win h2{margin:0 0 4px;font-size:26px}#winStars{font-size:34px;letter-spacing:.1em;color:var(--gold)}#winStars .off{opacity:.3}#win p{color:var(--dim);margin:6px 0 16px}#win .row{display:flex;gap:10px}#win button{flex:1;min-height:48px;border-radius:14px;border:1px solid var(--line);background:#ffffff14;font-weight:700}#win button.primary{background:var(--green);color:#07270f;border-color:transparent}.overlay{position:fixed;top:0;right:0;bottom:0;left:0;display:flex;overflow-y:auto;background:#05081699;-webkit-backdrop-filter:blur(3px);backdrop-filter:blur(3px);padding:16px;z-index:8}.card{margin:auto;width:min(420px,100%);background:var(--panel);border:1px solid var(--line);border-radius:22px;padding:24px 22px;text-align:center}.card h1{margin:0 0 6px;font-size:38px;letter-spacing:-.02em}.card h1 span{color:var(--gold)}.card .tag{color:#d7dcf7;margin:0 0 14px}.card ul{text-align:left;padding-left:18px;margin:0 0 18px;color:#d7dcf7}.card li{margin:6px 0}.card button{width:100%;min-height:52px;border-radius:14px;border:0;background:var(--gold);color:#2a2100;font-weight:800;font-size:17px}.card button:disabled{opacity:.5;cursor:default}@media (max-height: 520px){#controls button{width:48px;height:48px}#caption{top:64px}#arrows,#kbd{bottom:70px}}@media (prefers-reduced-motion: reduce){#ghost.run{animation:none;opacity:1;transform:translate(var(--x1),var(--y1))}#pips i,#caption{transition:none}}