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#0000003d;display:flex;flex-direction:column;align-items:center;flex:1;min-width:400px;max-width:500px}.left-column h2,.right-column h2{text-align:center;margin-top:0;margin-bottom:20px;color:#555}.image-display-area{width:100%;min-height:350px;display:flex;justify-content:center;align-items:center;margin-bottom:20px;background-color:#eee;border-radius:4px}.image-display-area img{max-width:100%;max-height:350px;display:block}.placeholder-text{color:#888;font-style:italic}.controls{display:flex;justify-content:center;gap:15px;margin-bottom:15px;width:100%}.btn{padding:10px 20px;border:none;border-radius:5px;color:#fff;font-size:1rem;cursor:pointer;transition:background-color .2s 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p{margin:5px 0}.error-message{color:#dc3545;font-weight:700}.board-display-area{margin-bottom:20px}.section{width:100%;margin-top:15px;padding:15px;border:1px solid #eee;border-radius:4px;background-color:#fdfdfd}.section h3{margin-top:0;margin-bottom:10px;color:#444;text-align:center}.fen-string{font-family:monospace;word-break:break-all;text-align:center}.best-move-display p{text-align:center}.spinner-overlay{position:fixed;top:0;left:0;width:100%;height:100%;background-color:#00000080;display:flex;justify-content:center;align-items:center;z-index:1000}footer{text-align:center;margin-top:30px;padding:15px;color:#666;background-color:#e9ecef;width:100%}.chessboard{position:relative;margin:20px}.chessboard .board-coordinates{font-size:16px;font-family:Arial,sans-serif;font-weight:700;color:#666;position:absolute}.chessboard .board-coordinates.files{bottom:-24px;top:auto;left:0;right:0;display:flex;justify-content:space-between;padding:0 5px}.chessboard 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