:root{font-family:system-ui,Avenir,Helvetica,Arial,sans-serif;line-height:1.5;font-weight:400;color-scheme:light dark;color:#ffffffde;background-color:#242424;font-synthesis:none;text-rendering:optimizeLegibility;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale}a{font-weight:500;color:#646cff;text-decoration:inherit}a:hover{color:#535bf2}body{margin:0;place-items:center;min-width:320px;min-height:100vh}h1{font-size:3.2em;line-height:1.1}button{border-radius:8px;border:1px solid transparent;padding:.6em 1.2em;font-size:1em;font-weight:500;font-family:inherit;background-color:#1a1a1a;cursor:pointer;transition:border-color .25s}button:hover{border-color:#646cff}button:focus,button:focus-visible{outline:4px auto -webkit-focus-ring-color}@media (prefers-color-scheme: light){:root{color:#213547;background-color:#fff}a:hover{color:#747bff}button{background-color:#f9f9f9}}:root{--bg: #212121;--text: #f5f5f5;--header-bg: #2a2a2a;--accent: #4da6ff;--cell-border: 1px solid #ccc;--btn-bg:white;--btn-text:black}body.light{--bg: white;--text: #000000;--header-bg: #f5f5f5;--accent: dodgerblue;--cell-border:1px solid #000;--cell-shadow:2px 2px 5px black;--btn-bg:black;--btn-text:white}.app{display:flex;flex-direction:column;align-items:center;justify-content:center;min-height:100vh;width:100%;padding:20px;box-sizing:border-box;text-align:center;background:var(--bg)}.selectors{grid-template-columns:1fr;width:100%;display:grid;gap:20px;margin-bottom:20px;color:#000}.selector{min-width:150px;color:var(--text)}.selectors .selector,.selectors .selector select{width:100%}.start-btn{margin:20px 20px 3px;padding:10px 20px;font-size:16px;font-weight:700;cursor:pointer}.selector-label{color:#000}.game-area{display:flex;justify-content:center;align-items:center;gap:40px;margin-top:30px;margin-bottom:30px;flex-wrap:wrap;width:100%}.board{display:grid;gap:4px;justify-content:center;margin-top:20px}.board-grid{width:80vmin;height:80vmin}.cell{background-color:#e0e0e0;border:var(--cell-border);display:flex;align-items:center;justify-content:center;font-weight:700;aspect-ratio:1 / 1;box-shadow:var(--cell-shadow)}.blocked{background-color:#fff}.blocked:after{content:"";width:calc(var(--cell)*.7);height:calc(var(--cell)*.7);border-radius:50%;background-color:#000;border:1px solid black;box-shadow:0 0 5px #00000080;display:block;margin:auto}.marker{background-color:#ffffff color: white}.marker-circle{width:calc(var(--cell)*.7);height:calc(var(--cell)*.7);border-radius:50%;background-color:#fff;border:1px solid black;box-shadow:0 0 5px #00000080;margin:auto}.valid{background-color:#e4f28a;cursor:pointer}.winner-message{position:absolute;top:50%;left:50%;transform:translate(-50%,-50%);z-index:1000;background-color:#fff;padding:30px;border:2px solid #d1545e;border-radius:12px;box-shadow:0 0 10px #0000004d;text-align:center}.winner-message h2{color:#d1545e;margin-bottom:15px}.winner-message p,label{color:#000}.winner-message button{margin:5px;padding:8px 16px;font-weight:700;cursor:pointer}.cell-label{width:var(--cell);height:var(--cell);display:flex;align-items:center;justify-content:center;font-weight:700;-webkit-user-select:none;user-select:none;font-size:calc(var(--cell)/3)}.goal-label{font-weight:700;color:#d1545e;font-size:calc(var(--cell)/2)}.move-log-container{max-height:25em;overflow-y:auto;border:1px solid #ccc;flex:0 0 260px;margin:20px}.move-log-table{width:100%;border-collapse:collapse}.move-log-table th{position:sticky;top:0;z-index:1;text-align:center;font-weight:700;border-bottom:2px solid #aaa;background:var(--bg)}.move-log-table th,.move-log-table td{width:33%;white-space:nowrap;border:1px solid #aaa;padding:.5rem;text-align:center;height:10px;color:var(--text)}.move-log-table .active{background-color:#375aa6;font-weight:700}.puzzle-player-info{color:var(--text);font-size:1rem}@media (max-width: 768px){.board .cell{width:30px;height:30px;font-size:12px}.move-log-container{max-height:300px;flex:1 1 100%}}@media (max-width: 480px){.board .cell{width:24px;height:24px;font-size:10px}.start-btn{font-size:14px;padding:8px 16px}}.rb-header{display:flex;align-items:center;gap:12px;padding:10px 14px;position:sticky;top:0;justify-content:flex-start;color:var(--text)}.rb-header h1{font-size:24px;margin:0}.rb-burger{display:inline-flex;align-items:center;justify-content:center;width:36;height:36;background:transparent;border:none;padding:0;margin:0;cursor:pointer}@media (max-width: 640px){.rb-header h1{font-size:80px}.board .cell{width:44px;height:44px;font-size:20px}.start-btn{font-size:24px;padding:8px 16px}}.rb-text{color:var(--text)}.rb-modal-overlay{position:fixed;top:0;right:0;bottom:0;left:0;background:#00000080;display:grid;place-items:center;z-index:1000}.rb-modal{background:var(--bg, #121212);color:var(--text, #111);width:min(900px,92vw);max-height:88vh;overflow:auto;border-radius:16px;box-shadow:0 10px 40px #000}.rb-modal-header,.rb-modal-footer{display:flex;align-items:center;justify-content:space-between;padding:14px 16px;border-bottom:1px solid rgba(0,0,0,.08)}.rb-modal-footer{border-top:1px solid rgba(0,0,0,.08);border-bottom:0;justify-content:right}.rb-modal-section{padding:12px 16px}.rb-icon-btn{background:none;border:0;font-size:18px;cursor:pointer;color:var(--text)}.rb-btn{padding:8px 12px;border-radius:10px;border:1px solid rgba(0,0,0,.15);background:var(--btn-bg);cursor:pointer;color:var(--btn-text)}.rb-btn.rb-primary{background:#2b6fff;border-color:#2b6fff;color:#fff}.rb-table{width:100%;border-collapse:collapse;margin-top:8px;font-size:14px}.rb-table th,.rb-table td{border-bottom:1px solid rgba(0,0,0,.08);padding:8px;text-align:center}.rb-note{font-size:12px;color:#666;margin-top:6px}.rb-divide-right{border-right:1px solid var(--text)}.rb-tip-wrap{position:relative;display:inline-block}.rb-tip{position:absolute;bottom:110%;left:50%;transform:translate(-50%);background:var(--bg);color:var(--text);border:1px solid rgba(0,0,0,.15);padding:6px 10px;border-radius:8px;box-shadow:0 4px 12px #0003;font-size:12px;white-space:nowrap;opacity:0;animation:rb-tip-in .15s ease-out forwards;z-index:1001}.rb-tip:after{content:"";position:absolute;top:100%;left:50%;transform:translate(-50%);border-width:6px;border-style:solid;border-color:var(--bg) transparent transparent transparent}@keyframes rb-tip-in{0%{opacity:0;transform:translate(-50%,-6px)}to{opacity:1;transform:translate(-50%)}}:root{--rb-sidebar-w: 280px;--rb-z-overlay: 40;--rb-z-sidebar: 41}.rb-overlay{position:fixed;top:0;right:0;bottom:0;left:0;background:#00000059;opacity:;pointer-events:none;transition:opacity .2s ease;z-index:var(--rb-z-overlay)}.rb-overlay--show{opacity:1;pointer-events:auto}.rb-sidebar{position:fixed;top:0;left:0;height:100dvh;width:var(--rb-sidebar-w);background:#fff;border-right:1px solid #e7e7e7;box-shadow:0 10px 25px #00000014;transform:translate(-100%);transition:transform .22s ease;z-index:var(--rb-z-sidebar);display:flex;flex-direction:column}.rb-sidebar__inner{padding:16px;overflow:auto;height:100%}.rb-sidebar--open{transform:translate(0)}@media (max-width: 640){:root{--rb-sidebar-w: 300vw}.rb-sidebar__inner{padding:20px;font-size:2.05rem;line-height:1.5}.rb-sidebar button,.rb-sidebar input,.rb-sidebar select,.rb-sidebar label{font-size:1rem}}@media (min-width: 992px){.rb-overlay{display:none}.rb-sidebar{transform:none;position:sticky;top:0;height:100vh}}