:root{--bg-color: #1D1D1F;--text-main: #F5F5F7;--text-muted: #8E8E93;--grid-gap: 8px;--cell-empty: #2C2C2E;--cell-checkpoint: #3A3A3C;--cell-active: #0A84FF;--cell-success: #30D158;--cell-wall: #F5F5F7;--radius-cell: 14px;--radius-container: 24px}body{margin:0;padding:0;color:var(--text-main);font-family:system-ui,-apple-system,sans-serif;display:flex;justify-content:center;align-items:center;min-height:100vh;user-select:none;letter-spacing:-.02em;background-color:#000}#app{width:100%;max-width:400px;padding:20px;box-sizing:border-box}.top-nav-row{display:flex;justify-content:space-between;gap:8px;margin-bottom:8px}.top-nav-row:last-of-type{margin-bottom:20px;padding-bottom:12px;border-bottom:1px solid var(--cell-checkpoint)}.btn-micro{flex:1;padding:8px 4px;font-size:.75rem;font-weight:700;background-color:var(--cell-empty);color:var(--text-muted);border:none;border-radius:6px;cursor:pointer;transition:all .2s ease}.btn-micro:hover:not(:disabled){background-color:var(--cell-checkpoint);color:var(--text-main)}.btn-micro:disabled{opacity:.45;cursor:not-allowed}.game-wrapper{position:relative;background:var(--bg-color);padding:24px;border-radius:var(--radius-container);box-shadow:0 8px 30px #0000000f}.game-header{display:flex;justify-content:space-between;align-items:flex-start;margin-bottom:24px;gap:10px}.stats-group{display:flex;flex-direction:column;gap:4px;flex:1;min-width:0}.score-display{display:flex;flex-direction:column;align-items:flex-end;gap:2px;flex:1;text-align:right;min-width:0}.stat-item{font-weight:600;font-size:.7rem;color:var(--text-muted);white-space:nowrap;display:flex;align-items:baseline;gap:4px}.stat-item span{color:var(--text-main);font-size:1rem;margin-left:4px}.stat-item span:last-child{font-size:1rem;color:var(--text-main)}.stat-item.justify-right{justify-content:flex-end}.stat-item span:last-child{font-size:1.1rem;font-weight:800}.score-display{display:flex;flex-direction:column;align-items:flex-end;gap:2px}#score-val{font-size:2.2rem;font-weight:800;line-height:1;margin-bottom:2px;color:var(--cell-active)}#best-val,#max-lvl-val{font-variant-numeric:tabular-nums}.stat-item span{font-size:clamp(.8rem,2.5vw,1rem)}.board-container{position:relative;margin-bottom:24px;touch-action:none}.game-grid{display:grid;gap:var(--grid-gap);position:relative;z-index:1}.path-svg{position:absolute;top:0;left:0;width:100%;height:100%;pointer-events:none;z-index:2}.path-line{fill:none;stroke:#fffc;stroke-width:10;stroke-linecap:round;stroke-linejoin:round;transition:stroke .3s ease;mix-blend-mode:normal}.path-svg.win .path-line{stroke:#fffc}.loading-overlay{position:absolute;inset:0;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:14px;background:var(--bg-color);border-radius:var(--radius-cell);z-index:10;animation:fadeInOverlay .15s ease}.loading-overlay.hidden{display:none}@keyframes fadeInOverlay{0%{opacity:0}to{opacity:1}}.loading-spinner{width:36px;height:36px;border:3px solid var(--cell-checkpoint);border-top-color:var(--cell-active);border-radius:50%;animation:spin .75s linear infinite}@keyframes spin{to{transform:rotate(360deg)}}.loading-text{font-size:.85rem;font-weight:600;color:var(--text-muted);letter-spacing:-.01em}.grid-cell{background-color:var(--cell-empty);border-radius:var(--radius-cell);display:flex;justify-content:center;align-items:center;font-size:1.5rem;font-weight:700;cursor:pointer;aspect-ratio:1 / 1;transition:all .2s cubic-bezier(.4,0,.2,1);box-sizing:border-box}.grid-cell.checkpoint{background-color:var(--cell-checkpoint)}.grid-cell.active{background-color:var(--cell-active);color:#fff;box-shadow:0 4px 12px #007aff4d}.game-grid.win .grid-cell.active{background-color:var(--cell-success);box-shadow:0 4px 12px #1987544d}.grid-cell.current{transform:scale(.92)}.grid-cell.hole{background-color:#d1d1d6;box-shadow:inset 0 2px 4px #0000001a;cursor:default;pointer-events:none;opacity:.6}.grid-cell.wall{background-color:#3a3a3c;opacity:.85;cursor:default;pointer-events:none;border-radius:var(--radius-cell)}.game-controls{display:flex;gap:12px}.game-controls button{flex:1;padding:16px;font-size:1.1rem;font-weight:700;cursor:pointer;border:none;border-radius:30px;transition:all .2s ease;box-sizing:border-box}.game-controls button:disabled{opacity:.4;cursor:not-allowed}#btn-start{background-color:var(--text-main);color:var(--bg-color)}#btn-start:disabled{opacity:1;background-color:var(--cell-checkpoint);color:var(--text-main);border:1px solid var(--cell-active);cursor:default}#btn-reset{background-color:transparent;color:var(--text-main);border:2px solid var(--cell-checkpoint)}.game-controls button:active:not(:disabled){transform:scale(.96)}.modal-overlay{position:fixed;inset:0;background:#00000080;backdrop-filter:blur(4px);-webkit-backdrop-filter:blur(4px);display:flex;justify-content:center;align-items:center;z-index:100;padding:16px;box-sizing:border-box}.modal-overlay.hidden{display:none}.modal-content{background:var(--bg-color);color:var(--text-main);width:100%;max-width:440px;max-height:82vh;overflow-y:auto;padding:24px;border-radius:var(--radius-container);box-shadow:0 12px 40px #0003;box-sizing:border-box}.btn-close{width:100%;padding:14px;border-radius:20px;background:var(--text-main);color:var(--bg-color);font-size:1rem;font-weight:700;border:none;cursor:pointer;transition:transform .1s ease;margin-top:16px}.btn-close:active{transform:scale(.96)}#btn-modal-install{display:block;margin:20px auto 0;width:fit-content;padding:12px 24px;font-size:1rem;border-radius:25px;box-shadow:0 4px 12px #007aff33}#btn-modal-install:active{transform:scale(.96)}.info-content{font-size:.92rem;line-height:1.5;text-align:left}.info-content h2{font-size:1.3rem;margin-top:0;margin-bottom:12px;color:var(--text-main);text-align:center}.info-content ul{list-style:none;padding:0;margin:0}.info-content li{margin-bottom:10px;display:flex;align-items:flex-start;gap:8px;color:var(--text-main)}.info-version{margin-top:16px;font-size:.82rem;color:var(--text-muted);border-top:1px solid var(--cell-checkpoint);padding-top:10px;text-align:center}.author-info{display:flex;flex-direction:column;gap:4px;margin-top:16px;border-top:1px solid var(--cell-checkpoint);padding-top:12px;text-align:center}.author-name{font-size:.88rem;font-weight:700;color:var(--text-main);letter-spacing:-.01em}.author-meta{font-size:.82rem;font-weight:500;color:var(--text-muted)}.install-banner{position:fixed;bottom:24px;left:50%;transform:translate(-50%);width:calc(100% - 48px);max-width:360px;background:var(--text-main);color:var(--bg-color);border-radius:16px;padding:12px 14px;display:flex;align-items:center;gap:8px;z-index:200;box-shadow:0 8px 32px #00000040;animation:bannerSlideUp .35s cubic-bezier(.4,0,.2,1);box-sizing:border-box}.install-banner.hidden{display:none}@keyframes bannerSlideUp{0%{opacity:0;transform:translate(-50%) translateY(16px)}to{opacity:1;transform:translate(-50%) translateY(0)}}.install-banner-icon{font-size:1.1rem;flex-shrink:0}.install-banner-msg{flex:1;font-size:.76rem;font-weight:600;line-height:1.35}.install-banner-btn{background:var(--cell-active);color:#fff;border:none;border-radius:10px;padding:6px 14px;font-size:.8rem;font-weight:700;cursor:pointer;flex-shrink:0;white-space:nowrap}.install-banner-dismiss{background:transparent;border:none;color:inherit;opacity:.55;cursor:pointer;font-size:.9rem;padding:4px 2px;flex-shrink:0;line-height:1}body.light-mode{--bg-color: #ffffff;--text-main: #1D1D1F;--text-muted: #6E6E73;--cell-empty: #F5F5F7;--cell-checkpoint: #E5E5EA;--cell-active: #007AFF;--cell-success: #198754;--cell-wall: #3A3A3C;background-color:#f5f5f7}.control-code-wrapper{margin-top:20px;padding:16px;background-color:var(--cell-empty);border-radius:var(--radius-cell);border:1px solid var(--cell-checkpoint);text-align:center;animation:fadeInOverlay .3s ease}.control-code-wrapper.hidden{display:none}.code-info{font-size:.85rem;color:var(--text-muted);margin-bottom:8px;font-weight:600}.code-box{display:flex;justify-content:space-between;align-items:center;background-color:var(--bg-color);padding:10px 12px;border-radius:8px;gap:8px}#control-code-val{font-family:monospace;font-size:.85rem;font-weight:800;color:var(--cell-active);word-break:break-all;max-width:200px;text-align:left}#btn-copy-code{background-color:var(--cell-empty);color:var(--text-main);border:1px solid var(--cell-checkpoint);padding:8px 16px;border-radius:8px;font-weight:600;transition:all .2s ease}#btn-copy-code:active{background-color:var(--cell-active);color:#fff;transform:scale(.95)}