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.25rem!important}.best-move-value{font-size:1.95rem!important;font-weight:700!important;color:#22c55e!important}}.best-move-value{font-size:1.2rem;font-weight:700;color:#22c55e}:root{--header-total-height: 180px}.app{min-height:100vh;background:var(--bg-primary);font-family:var(--font-family-primary);color:var(--text-primary);font-size:var(--font-size-base);line-height:1.6;transition:background .3s ease,color .3s ease}.app-header{text-align:left;padding:1.5rem 2rem;background:linear-gradient(135deg,#1a202c,#2d3748);color:#fff;margin-bottom:0;box-shadow:0 8px 32px #00000026;transition:all .3s ease;border-bottom:3px solid #4299e1;position:relative;overflow:visible}.header-content{display:flex;justify-content:space-between;align-items:flex-start;max-width:1200px;margin:0 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h3{margin:0;font-size:.9rem;font-weight:600;color:var(--text-primary);letter-spacing:-.02em}.add-board-button{display:flex;align-items:center;justify-content:center;width:22px;height:22px;background:var(--btn-secondary-bg);color:var(--text-secondary);border:1px solid var(--border-primary);border-radius:3px;cursor:pointer;transition:all .2s ease;box-shadow:0 1px 3px var(--shadow-primary);position:relative;overflow:hidden}.add-board-button:before{content:"";position:absolute;top:0;left:-100%;width:100%;height:100%;background:linear-gradient(90deg,transparent,rgba(255,255,255,.3),transparent);transition:left .5s}.add-board-button:hover:before{left:100%}.add-board-button:hover{background:var(--btn-primary-bg);color:var(--btn-primary-text);transform:translateY(-1px);box-shadow:0 2px 6px var(--shadow-primary)}.boards-list{max-height:600px;overflow-y:auto;overflow-x:hidden;scrollbar-width:thin;scrollbar-color:#c4b5fd #f3e8ff;padding:3px;display:flex;flex-direction:column;gap:1px}.boards-list::-webkit-scrollbar{width:6px}.boards-list::-webkit-scrollbar-track{background:var(--scrollbar-track-bg);border-radius:3px}.boards-list::-webkit-scrollbar-thumb{background:var(--scrollbar-thumb-bg);border-radius:3px;transition:all .2s ease}.boards-list::-webkit-scrollbar-thumb:hover{background:var(--scrollbar-thumb-hover-bg)}.board-item{display:flex;align-items:center;justify-content:space-between;padding:2px 4px;border:1px solid var(--border-secondary);border-radius:3px;transition:all .2s ease;cursor:pointer;position:relative;background:var(--bg-secondary);box-shadow:0 1px 3px var(--shadow-primary);min-height:30px}.board-item:before{content:"";position:absolute;inset:0;background:linear-gradient(135deg,transparent 0%,rgba(196,181,253,.05) 100%);opacity:0;transition:opacity .3s ease;pointer-events:none}.board-item:last-child{margin-bottom:0}.board-item:hover{transform:translateY(-1px);box-shadow:0 3px 12px var(--shadow-primary);border-color:var(--border-primary);background:var(--bg-tertiary)}.board-item:hover:before{opacity:1}.board-item.active{background:var(--active-bg);border:2px solid var(--active-border);box-shadow:0 2px 8px var(--active-shadow),inset 0 1px 0 var(--active-inset-shadow);transform:translateY(-1px)}.board-item.active:before{background:linear-gradient(135deg,#a78bfa1a,#c4b5fd26);opacity:1}.board-name-section{flex:1;display:flex;align-items:center;padding-right:.25rem}.board-name{font-weight:500;color:var(--text-primary);font-size:.85rem;text-shadow:0 1px 2px var(--text-shadow);transition:all .2s ease}.board-name.clickable{cursor:pointer;border-radius:2px;padding:1px 3px;margin:-1px -3px}.board-name.clickable:hover{background-color:var(--hover-bg);color:var(--link-color);transform:scale(1.02)}.board-item.active .board-name{color:var(--active-text);font-weight:600}.board-name-input{padding:.35rem .75rem;border:2px solid #a78bfa;border-radius:8px;font-size:.9rem;font-weight:500;background:linear-gradient(135deg,#fff,#faf5ff);outline:none;width:140px;box-shadow:0 2px 8px #a78bfa26;transition:all .2s ease}.board-name-input:focus{border-color:#8b5cf6;box-shadow:0 0 0 3px #8b5cf626,0 4px 12px #a78bfa33;background:#fff}.board-actions{display:flex;gap:.125rem;opacity:0;transition:all .3s ease;transform:translate(4px)}.board-item:hover .board-actions,.board-item.active .board-actions{opacity:1;transform:translate(0)}.action-button{display:flex;align-items:center;justify-content:center;width:20px;height:20px;border:none;border-radius:4px;cursor:pointer;transition:all .2s ease;background:transparent;padding:2px}.action-button.edit{color:var(--text-secondary)}.action-button.edit:hover{color:var(--link-color);background:var(--hover-bg);transform:scale(1.1)}.action-button.confirm{color:var(--success-color)}.action-button.confirm:hover{color:var(--success-hover-color);background:var(--success-hover-bg);transform:scale(1.1)}.action-button.remove{color:var(--text-secondary)}.action-button.remove:hover{color:var(--error-color);background:var(--error-hover-bg);transform:scale(1.1)}.boards-info{padding:4px 8px;background:var(--sidebar-header-bg);text-align:center;border-top:1px solid var(--sidebar-border);position:relative}.boards-info small{color:var(--text-secondary);font-size:.65rem;font-weight:500;text-shadow:0 1px 2px var(--text-shadow)}.fen-display-field{padding:.75rem;border:2px solid #e1e8ed;border-radius:8px;font-family:monospace;font-size:.85rem;background:#f8f9fa;color:#666;margin-top:.5rem}.current-fen{margin-top:.5rem}.chess-board-container{display:flex;flex-direction:column;align-items:center;gap:1rem}.board-name-display{display:flex;justify-content:start;align-items:start;padding:0;border-radius:0;transition:all .3s ease}.current-board-name{display:none;margin:0;font-size:1.1rem;font-weight:600;color:var(--text-primary);text-align:center;text-shadow:0 1px 2px var(--text-shadow);transition:all .3s ease}.board-with-pieces{display:flex;flex-direction:column;align-items:center;gap:4px;margin:8px 0;width:98%}.spare-pieces-top,.spare-pieces-bottom{width:80%;display:flex;justify-content:center;height:auto;touch-action:none;-webkit-touch-callout:none}.spare-pieces-container{background:var(--bg-secondary);opacity:50%;border-radius:6px;padding:6px;margin:0;transition:all .3s 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