:root{--font-family-system: -apple-system, BlinkMacSystemFont, "Segoe UI", system-ui, Helvetica, Arial, sans-serif;--font-family-heading: "Chess Sans", sans-serif;--color-bg-primary: #302e2b;--color-bg-panel: #262421;--color-bg-panel-header: #21201d;--color-bg-tertiary: #21201d;--color-text-primary: #c3c3c3;--color-text-highlight: #ffffff;--color-text-default: #c3c3c3;--color-text-subtle: #999;--accent-green: #81b64c;--color-green-400: #81b64c;--color-green-300: #81b64c;--border-color: #403d39;--bg-app: var(--color-bg-primary);--bg-panel: var(--color-bg-panel);--bg-panel-header: var(--color-bg-panel-header);--bg-move-active: #484643;--bg-move-hover: #3a3835;--text-primary: #c3c3c3;--text-highlight: #ffffff}html{box-sizing:border-box;font-size:62.5%}body{background-color:var(--bg-app);color:var(--text-primary);font-family:var(--font-family-system);font-size:1.4rem;line-height:1.43;margin:0;padding:0}*,:after,:before{box-sizing:inherit}.app-container{display:flex;flex-direction:row-reverse;height:100vh;width:100vw;background-color:var(--bg-app);font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Helvetica,Arial,sans-serif;color:var(--text-primary);overflow:hidden}@media (max-width: 900px){.app-container{flex-direction:column-reverse;height:100%;overflow-y:auto;overflow-x:hidden}}@keyframes pulse{0%{opacity:.6}50%{opacity:1}to{opacity:.6}}@keyframes fadeIn{0%{opacity:0}to{opacity:1}}.modal-overlay{position:fixed;top:0;left:0;width:100%;height:100%;background-color:#000000b3;display:flex;justify-content:center;align-items:center;z-index:1000}.modal-content{background-color:var(--bg-panel);width:300px;border-radius:8px;box-shadow:0 4px 20px #00000080;border:1px solid var(--border-color);overflow:hidden}.modal-header{padding:15px;background-color:var(--bg-panel-header);display:flex;justify-content:space-between;align-items:center;border-bottom:1px solid var(--border-color)}.modal-header h3{margin:0;font-size:1rem;color:#eee}.close-btn{background:none;border:none;color:#999;cursor:pointer}.close-btn:hover{color:#fff}.modal-body{padding:20px;display:flex;flex-direction:column;gap:15px}.form-group{display:flex;flex-direction:column;gap:5px}.form-group label{font-size:.85rem;color:#aaa}.form-group input{padding:8px;background-color:#302e2b;border:1px solid #403d39;color:#fff;border-radius:4px}.modal-footer{padding:15px;border-top:1px solid var(--border-color);display:flex;justify-content:flex-end}.save-btn{background-color:var(--accent-green);color:#fff;border:none;padding:8px 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var(--border-color)}.panel-tab{flex:1;display:flex;align-items:center;justify-content:center;padding:12px;cursor:pointer;font-weight:600;color:#999;border-bottom:3px solid transparent;transition:all .2s}.panel-tab:hover{color:#ccc;background-color:#ffffff05}.panel-tab.active{color:var(--text-highlight);border-bottom-color:var(--accent-green);background-color:#81b64c0d}.game-item{background:#262522;padding:10px;margin-bottom:8px;border-radius:6px;cursor:pointer;border:1px solid #333;transition:all .2s}.game-item:hover{border-color:#555;background:#2a2926}.panel-content{flex:1;display:flex;flex-direction:column;overflow:hidden}.eval-box{background-color:#262421;padding:0;border-bottom:1px solid var(--border-color)}.settings-bar{display:flex;justify-content:space-between;font-size:1.1rem;color:#888;padding:12px 15px;background-color:#21201d;border-bottom:1px solid #302e2b}.engine-lines{display:flex;flex-direction:column;max-height:none;overflow-y:auto;overflow-x:hidden;padding:5px 0}.engine-line{display:flex;align-items:center;background-color:#262421;padding:0 12px;font-size:1.2rem;border-bottom:1px solid #302e2b;min-height:20px;line-height:1.2;cursor:pointer;white-space:normal;overflow:hidden;min-width:0;width:100%;transition:background-color .2s}.engine-line:hover{background-color:#2f2d2a}.line-score{background-color:#fff;color:#333;padding:2px 5px;border-radius:3px;font-weight:700;min-width:40px;text-align:center;margin-right:8px;font-size:.9em}.line-score.plus{background-color:#fff;color:#333}.line-score.minus{background-color:#403d39;color:#fff}.line-moves{flex:1;color:#aaa;line-height:1.4;word-wrap:break-word;overflow-wrap:anywhere;min-width:0}.line-moves .highlight{color:#ddd;font-weight:700;cursor:help}.hover-move{color:#aaa;cursor:help;transition:color 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60px),calc(100vw - 600px)) + 120px);height:auto;max-width:100%;margin-left:80px;justify-content:center;transition:all .3s ease;padding:20px 0}.board-row{display:flex;flex-direction:row;gap:16px;align-items:stretch;height:100%}.eval-bar-wrapper{width:45px;margin:0;flex-shrink:0}.board-wrapper{flex:1;position:relative;aspect-ratio:1/1;font-family:-apple-system,BlinkMacSystemFont,Segoe UI,system-ui,Helvetica,Arial,sans-serif;font-weight:700}.game-over-modal{position:absolute;top:50%;left:50%;transform:translate(-50%,-50%);background:#000000d9;color:#fff;padding:24px 40px;border-radius:12px;z-index:200;font-size:2rem;font-weight:700;text-align:center;box-shadow:0 8px 32px #00000080;border:1px solid #444;pointer-events:none;animation:fadeIn .3s ease-out;width:max-content;max-width:90%}.board-overlay{position:absolute;top:0;left:0;width:100%;height:100%;z-index:100}@media (max-width: 900px){.board-container{margin-left:0;width:95vw;height:auto;gap:8px;padding:10px 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