.game-shell{flex:1;display:flex;align-items:center;justify-content:center;padding:clamp(12px,3vh,24px) 16px;overscroll-behavior:none}.game-inner{width:min(100%,540px);display:flex;flex-direction:column;gap:clamp(10px,2vh,16px)}.game-top{display:flex;align-items:flex-start;justify-content:space-between;gap:12px}.title-col{display:flex;flex-direction:column;gap:12px;align-items:flex-start}.back{display:inline-flex;align-items:center;gap:6px;color:var(--muted);font-size:13px;font-weight:500;padding:7px 13px;border:1px solid var(--glass-border);border-radius:999px;background:var(--glass);backdrop-filter:blur(8px);-webkit-backdrop-filter:blur(8px);transition:color .15s,background .15s,border-color .15s}.back:hover{color:var(--text);background:var(--glass-hover);border-color:#6c5ce799}.fl-title{font-size:clamp(26px,7.5vw,40px);font-weight:900;letter-spacing:-.02em;line-height:1;background:linear-gradient(to right,var(--secondary),var(--accent));-webkit-background-clip:text;background-clip:text;color:transparent}.scores{display:flex;gap:10px}.score-box{background:var(--glass);border:1px solid var(--glass-border);backdrop-filter:blur(8px);-webkit-backdrop-filter:blur(8px);border-radius:12px;padding:7px 14px;text-align:center;min-width:64px}.score-label{font-size:10px;color:var(--muted);text-transform:uppercase;letter-spacing:.1em}.score-val{font-size:19px;font-weight:700;font-variant-numeric:tabular-nums}.controls{display:flex;align-items:center;justify-content:space-between;gap:10px;flex-wrap:wrap}.ctrl-btns{display:flex;gap:8px;align-items:center}.ctrl-btns .btn{padding:9px 13px}.fl-status{font-size:14px;font-weight:700;color:var(--accent);font-variant-numeric:tabular-nums;margin-right:2px}.fl-diff{display:flex;gap:6px}.fl-dbtn{padding:8px 12px;border:1px solid var(--glass-border);background:var(--glass);color:var(--muted);border-radius:10px;font:inherit;font-size:13px;font-weight:600;cursor:pointer;transition:background .15s,color .15s,border-color .15s}.fl-dbtn:hover{color:var(--text)}.fl-dbtn.active{background:linear-gradient(to right,var(--primary),var(--accent));color:#fff;border-color:transparent}.board-wrap{position:relative;width:min(100%,70vh);aspect-ratio:1 / 1;margin:0 auto;flex-shrink:0}.fl-board{position:relative;width:100%;height:100%;border:2px solid rgba(255,255,255,.28);border-radius:12px;overflow:hidden;background:var(--glass);backdrop-filter:blur(10px);-webkit-backdrop-filter:blur(10px);touch-action:none;user-select:none;-webkit-user-select:none}.fl-cells{position:absolute;inset:0;display:grid;grid-template-columns:repeat(var(--w, 5),minmax(0,1fr));grid-template-rows:repeat(var(--h, 5),minmax(0,1fr))}.fl-cell{border-right:1px solid rgba(255,255,255,.08);border-bottom:1px solid rgba(255,255,255,.08)}.fl-pipes{position:absolute;inset:0;width:100%;height:100%;pointer-events:none;overflow:visible}.fl-pipes polyline{opacity:.92}.fl-pipes polyline.done{opacity:1;filter:drop-shadow(0 0 .12px currentColor)}.fl-pipes circle{stroke:#00000059;stroke-width:.04}.fl-pipes circle.done{stroke:#ffffffd9;stroke-width:.05}.fl-tools{display:flex;gap:10px;justify-content:center}.fl-tools .btn{padding:10px 18px;font-size:15px}.overlay{position:absolute;inset:0;display:none;place-items:center;background:#0f0c29cc;border-radius:12px;text-align:center;backdrop-filter:blur(4px);-webkit-backdrop-filter:blur(4px)}.overlay.show{display:grid}.overlay-inner{display:flex;flex-direction:column;gap:14px;align-items:center;padding:16px}.overlay-msg{font-size:26px;font-weight:800}.ov-score{font-size:17px;font-weight:700;color:var(--accent)}.ov-submit{display:flex;gap:8px;flex-wrap:wrap;justify-content:center}.ov-name{background:var(--glass);border:1px solid var(--glass-border);border-radius:10px;padding:9px 12px;color:var(--text);font:inherit;font-size:14px;width:150px}.ov-rank{color:var(--secondary);font-weight:700;font-size:15px}.ov-rank:empty{display:none}.ov-actions{display:flex;gap:10px;flex-wrap:wrap;justify-content:center}