:root{--bg-color: #ffffff;--text-main: #1D1D1F;--text-muted: #6E6E73;--grid-gap: 8px;--cell-empty: #F5F5F7;--cell-checkpoint: #E5E5EA;--cell-active: #5856D6;--cell-success: #34C759;--cell-wall: #3A3A3C;--radius-cell: 12px;--radius-container: 20px;--primary-color: #5856D6}body{margin:0;padding:0;background-color:var(--bg-color);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}#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;transition:background-color .3s ease,box-shadow .3s ease}.game-header{display:flex;justify-content:space-between;align-items:center;margin-bottom:24px}.stats-group{display:flex;flex-direction:column;gap:4px}.stat-item{font-weight:600;font-size:.85rem;color:var(--text-muted)}.stat-item span{color:var(--text-main);font-size:1rem;margin-left:4px}.stat-item.justify-right{justify-content:flex-end}.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(--primary-color)}.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{display:none}.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)}.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 .15s cubic-bezier(.4,0,.2,1);box-sizing:border-box;position:relative}.grid-cell.checkpoint{background-color:var(--cell-checkpoint);color:var(--text-main)}.grid-cell.active{background-color:var(--patch-bg, var(--cell-active));color:#fff;box-shadow:inset 0 0 0 1px #ffffff26}.game-grid.win .grid-cell.active{animation:winPop .5s cubic-bezier(.34,1.56,.64,1) forwards}@keyframes winPop{0%{transform:scale(1);filter:brightness(1)}50%{transform:scale(1.06);filter:brightness(1.15);z-index:2}to{transform:scale(1);filter:brightness(1);z-index:1}}.grid-cell.preview-patch{transform:scale(.92);z-index:2;box-shadow:0 4px 12px #5856d640}.game-controls{display:flex;gap:12px}.game-controls button{flex:1;padding:16px;font-size:1.1rem;font-weight:700;cursor:pointer;border-radius:30px;transition:all .2s ease;box-sizing:border-box}.btn-primary{background-color:var(--primary-color);color:#fff!important;border:none}.btn-outline{background-color:var(--cell-empty);color:var(--text-main);border:2px solid var(--cell-checkpoint)}.btn-outline:hover:not(:disabled){background-color:var(--cell-checkpoint)}.game-controls button:disabled{opacity:.4;cursor:not-allowed}.game-controls button:active:not(:disabled){transform:scale(.96)}.footer-link-row{text-align:center;margin-top:14px}.btn-link{background:transparent;border:none;color:var(--primary-color);font-size:.85rem;font-weight:700;cursor:pointer;padding:4px 12px;opacity:.85;transition:opacity .2s}.btn-link:hover{opacity:1}.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;margin-top:16px}#btn-modal-install{display:block;margin:20px auto 0;width:fit-content;padding:12px 24px;font-size:1rem;border-radius:25px;background-color:var(--primary-color);color:#fff;border:none}.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;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}.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}.author-meta{font-size:.82rem;color:var(--text-muted)}.code-box{background:var(--cell-empty);border:1px solid var(--cell-checkpoint);padding:10px;border-radius:8px;font-family:monospace;font-size:1rem;font-weight:700;text-align:center;margin:10px 0;color:var(--primary-color);word-break:break-all}.input-rival{width:100%;padding:12px;border:2px solid var(--cell-checkpoint);border-radius:8px;background:var(--bg-color);color:var(--text-main);font-size:.95rem;box-sizing:border-box;margin-bottom:10px;text-align:center}.btn-danger{background-color:#ff375f;color:#fff;border:none;border-radius:8px;padding:8px 16px;font-weight:700;cursor:pointer;margin-top:8px;width:100%}body.dark-mode{--bg-color: #1C1C1E;--text-main: #F5F5F7;--text-muted: #8E8E93;--cell-empty: #2C2C2E;--cell-checkpoint: #3A3A3C;--cell-active: #5E5CE6;--cell-success: #30D158;--primary-color: #5E5CE6}body.dark-mode .game-wrapper{box-shadow:0 8px 30px #0006;background:#1c1c1e}body.dark-mode .grid-cell.preview-patch{box-shadow:0 4px 12px #5e5ce666}body.dark-mode .loading-overlay{background:#1c1c1eeb}body.dark-mode .loading-spinner{border-color:#3a3a3c;border-top-color:var(--cell-active)}body.dark-mode .modal-content{background:#2c2c2e}.btn-primary:disabled{opacity:.4}.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(--primary-color);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 8px;flex-shrink:0;line-height:1}#btn-start{font-weight:900!important;letter-spacing:.5px;color:#fff!important;text-shadow:0px 2px 4px rgba(0,0,0,.6)!important}#btn-start:disabled{opacity:1!important;cursor:default!important}