:root{--font-primary: "Poppins", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Oxygen, Ubuntu, Cantarell, sans-serif;--color-primary: #2c3e50;--color-secondary: #3498db;--color-accent: #e74c3c;--spacing-xs: .25rem;--spacing-sm: .5rem;--spacing-md: 1rem;--spacing-lg: 1.5rem;--spacing-xl: 2rem}*,*:before,*:after{box-sizing:border-box;margin:0;padding:0}html{font-size:16px;-webkit-text-size-adjust:100%}body{margin:0;padding:0;font-family:var(--font-primary);background:linear-gradient(135deg,var(--color-primary),var(--color-secondary));background-attachment:fixed;min-height:100vh;color:#fff;line-height:1.5;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale}.app{display:flex;flex-direction:column;align-items:center;padding:var(--spacing-xl);gap:var(--spacing-xl);min-height:100vh;position:relative}.game-controls{text-align:center;width:100%;max-width:1200px;background:#ffffff1a;backdrop-filter:blur(8px);-webkit-backdrop-filter:blur(8px);border-radius:16px;padding:var(--spacing-xl);box-shadow:0 8px 32px #0000001a;border:1px solid rgba(255,255,255,.2);margin:0 auto}.game-controls h1{color:#fff;margin-bottom:var(--spacing-md);font-size:clamp(1.75rem,4vw,2.5rem);font-weight:600;letter-spacing:-.02em;text-shadow:2px 2px 4px rgba(0,0,0,.3)}.status-bar{display:flex;align-items:center;justify-content:center;gap:var(--spacing-lg);margin-bottom:var(--spacing-lg);flex-wrap:wrap}.current-player{font-size:1.125rem;font-weight:500;background:#ffffff26;padding:var(--spacing-md) var(--spacing-lg);border-radius:8px;backdrop-filter:blur(4px);-webkit-backdrop-filter:blur(4px);box-shadow:0 4px 6px #0000001a;border:1px solid rgba(255,255,255,.1);letter-spacing:.01em}.current-player span{font-weight:600;text-transform:capitalize;margin-left:var(--spacing-xs)}.current-player span.white{color:#fff}.current-player span.black{color:#ddd}.reset-button{padding:var(--spacing-md) var(--spacing-lg);font-size:1rem;font-weight:500;font-family:var(--font-primary);color:#fff;background:linear-gradient(135deg,var(--color-accent),#c0392b);border:none;border-radius:8px;cursor:pointer;transition:all .3s ease;box-shadow:0 4px 6px #0003}.reset-button:hover{transform:translateY(-2px);box-shadow:0 6px 12px 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var(--spacing-md);min-width:80px;font-size:.9rem;background:#ffffff1a;color:#fff;border-radius:8px;cursor:pointer;transition:all .2s ease;font-weight:400;text-align:center;box-sizing:border-box}.difficulty-level:hover{background:#fff3;transform:translateY(-1px)}.difficulty-level.active{background:var(--color-accent);color:#fff;border-color:var(--color-accent);font-weight:600;box-shadow:0 2px 8px #0003}@media (min-width: 1921px){html{font-size:18px}}@media (max-width: 1400px){.captured-pieces{grid-template-columns:minmax(100px,150px) minmax(300px,1fr) minmax(100px,150px)}}@media (max-width: 1200px){:root{--spacing-xl: 1.5rem;--spacing-lg: 1.25rem}.captured-section{flex:0 0 150px}.captured-pieces{gap:var(--spacing-sm)}.game-container{margin:0 var(--spacing-sm)}}@media (max-width: 900px){.captured-section{flex:0 0 120px}}@media (max-width: 768px){:root{--spacing-xl: 1rem;--spacing-lg: 1rem}.app{padding:var(--spacing-md)}.captured-pieces{flex-direction:column}.captured-section{flex:none;width:100%;padding:var(--spacing-sm)}.game-container{padding:var(--spacing-sm);margin:0;border-radius:16px}.status-bar{flex-direction:column;gap:var(--spacing-md)}}@media (max-width: 480px){html{font-size:14px}.game-container,.captured-section,.white-captured,.black-captured{padding:var(--spacing-xs)}}.chess-board-container{position:relative;width:480px;height:480px;margin:30px auto;padding:20px 30px 30px;box-sizing:content-box}.chess-board{width:480px;height:480px;position:relative;display:flex;flex-direction:column;-webkit-user-select:none;user-select:none;box-shadow:0 5px 15px #00000080;border-radius:4px;overflow:hidden;z-index:1}@media (max-width: 576px){.chess-board{width:300px;height:300px}}.chess-board:focus{outline:2px solid var(--accent-color)}.board-content{display:flex;flex-direction:column;width:100%;height:100%}.row{display:flex;width:100%;height:12.5%}.square{width:12.5%;height:100%;position:relative;display:flex;align-items:center;justify-content:center;cursor:pointer;transition:background-color .15s ease}.square.valid-move:before{content:"";position:absolute;width:30%;height:30%;background-color:#0003;border-radius:50%;z-index:1}.square.valid-move.captured:before{width:90%;height:90%;border-radius:0;border:2px solid var(--highlight-border);background-color:transparent}.square.focused{outline:2px solid rgba(255,255,255,.4);z-index:2}.piece{width:90%;height:90%;display:flex;justify-content:center;align-items:center;position:relative;z-index:2;cursor:grab;transition:transform .1s}.piece:hover{transform:scale(1.05)}.piece.white i{color:#fff;text-shadow:0 0 2px #000,0 0 3px #000;font-size:2.5rem}.piece.black i{color:#000;text-shadow:0 0 2px #555,0 0 3px #555;font-size:2.5rem}@media (max-width: 576px){.piece.white i,.piece.black i{font-size:1.6rem}}.coordinates-x,.coordinates-y{position:absolute;display:flex;font-size:.8rem;color:var(--text-light);font-weight:500;opacity:.8}.coordinates-x{bottom:-1.5rem;left:0;right:0;justify-content:space-around}.coordinates-y{top:0;bottom:0;left:-1.5rem;flex-direction:column;justify-content:space-around;align-items:center}.coordinate{display:flex;justify-content:center;align-items:center;width:1.2rem;height:1.2rem}.game-over,.check-alert{position:absolute;top:50%;left:50%;transform:translate(-50%,-50%);background-color:#000c;color:#fff;padding:1rem 2rem;border-radius:4px;font-size:1.2rem;font-weight:600;z-index:10;box-shadow:0 0 10px #00000080;animation:fadeIn .3s ease-in}.check-alert{background-color:#dc3545cc;animation:pulse 1s infinite}.bot-thinking{position:absolute;bottom:0;left:0;background-color:#000000b3;color:#fff;padding:.5rem;border-top-right-radius:4px;font-size:.85rem;display:flex;align-items:center;gap:.5rem;animation:pulse 1.5s infinite}.game-over-message,.check-message{text-align:center;margin:.5rem 0;padding:.5rem;border-radius:4px;font-weight:500}.game-over-message{background-color:var(--primary-color);color:var(--accent-color)}.check-message{background-color:#dc354533;color:#dc3545}@keyframes fadeIn{0%{opacity:0}to{opacity:1}}@keyframes pulse{0%{opacity:.7}50%{opacity:1}to{opacity:.7}}:root{--primary-color: #312e2b;--secondary-color: #1e1e1e;--light-square: #f0d9b5;--dark-square: #b58863;--highlight-color: #f7e26b;--highlight-border: #ffd700;--text-light: #f0f0f0;--text-dark: #312e2b;--accent-color: #7fa650;--accent-hover: #6a8f44;--board-border: #594a38;--btn-active: #8fb85e;--btn-hover: #6a8e44}body{font-family:Poppins,sans-serif;background-color:var(--secondary-color);color:var(--text-light);margin:0;padding:0}.app-header{background-color:var(--primary-color);padding:1rem 2rem;box-shadow:0 2px 4px #0003;display:flex;justify-content:space-between;align-items:center}.logo{font-size:1.5rem;font-weight:700;color:var(--text-light)}.logo i{margin-right:.5rem;color:var(--accent-color)}.app-container{max-width:1200px;margin:0 auto;padding:2rem 1rem;display:flex;flex-direction:column;align-items:center}.chess-layout{display:grid;grid-template-columns:1fr minmax(320px,600px) 1fr;gap:1rem;width:100%}@media (max-width: 992px){.chess-layout{grid-template-columns:1fr}}.game-container{grid-column:2;display:flex;flex-direction:column;align-items:center}.side-panel{background-color:var(--primary-color);border-radius:8px;padding:1rem;height:fit-content}.chess-board{border:6px solid var(--board-border);border-radius:4px;box-shadow:0 4px 8px #0000004d}.game-info-panel{margin-top:1rem;width:100%;background-color:var(--primary-color);border-radius:8px;padding:1rem}.player-info{display:flex;align-items:center;padding:.5rem;background:#0003;border-radius:4px;margin-bottom:.5rem}.player-color{width:20px;height:20px;border-radius:50%;margin-right:.5rem}.player-white{background-color:#fff}.player-black{background-color:#000}.player-name{flex:1;font-weight:500}.timer{font-family:monospace;font-size:1.1rem}.moves-history{margin-top:1rem;max-height:200px;overflow-y:auto;font-family:monospace;padding:.5rem;background:#0000001a;border-radius:4px}.move-row{display:grid;grid-template-columns:2rem 1fr 1fr;line-height:1.5}.move-row:nth-child(odd){background-color:#ffffff0d}.move-number{text-align:center;color:var(--text-light);opacity:.5}.move{padding:0 .5rem}.move.current{background-color:var(--highlight-color);color:var(--text-dark);border-radius:2px}.square.light{background-color:var(--light-square)}.square.dark{background-color:var(--dark-square)}.square.selected{background-color:var(--highlight-color)}.square.valid-move:before{content:"";position:absolute;top:50%;left:50%;transform:translate(-50%,-50%);width:24px;height:24px;background-color:#0003;border-radius:50%;z-index:1}.square.valid-move.occupied:before{width:100%;height:100%;border-radius:0;border:2px solid var(--highlight-border);box-sizing:border-box}.controls{display:flex;gap:.5rem;margin-top:1rem;justify-content:center}.btn{padding:.5rem 1rem;background-color:var(--accent-color);color:var(--text-light);border:none;border-radius:4px;font-family:Poppins,sans-serif;font-weight:500;cursor:pointer;transition:background-color .2s}.btn:hover{background-color:var(--accent-hover)}.btn-secondary{background-color:transparent;border:1px solid var(--text-light)}.btn-secondary:hover{background-color:#ffffff1a}.player-color-selector{background-color:var(--primary-color);border-radius:8px;padding:1rem;margin-top:1rem}.player-color-selector h3{margin:0 0 .5rem;font-size:1rem;font-weight:500}.color-options{display:flex;gap:.5rem}.color-option{flex:1;padding:.5rem;display:flex;flex-direction:column;align-items:center;gap:.25rem;background-color:#0003;border-radius:4px;cursor:pointer;transition:background-color .2s}.color-option:hover{background-color:#0000004d}.color-option.active{background-color:var(--accent-color)}.color-icon{width:24px;height:24px;border-radius:50%}.color-icon.white{background-color:#fff;border:1px solid #000}.color-icon.black{background-color:#000;border:1px solid #333}.game-options{background-color:var(--primary-color);border-radius:8px;padding:1rem;margin-top:1rem}.game-options h3{margin:0 0 .5rem;font-size:1rem;font-weight:500}.options-container{display:flex;flex-direction:column;gap:.5rem}.options-container .btn{display:flex;align-items:center;gap:.5rem}.options-container .btn i{width:16px;text-align:center}.difficulty-selector{background-color:var(--primary-color);border-radius:8px;padding:1rem;margin-top:1rem}.difficulty-selector h3{margin:0 0 .5rem;font-size:1rem;font-weight:500}.difficulty-label{margin-bottom:.5rem;font-weight:500}.difficulty-options{display:flex;flex-wrap:wrap;gap:.5rem;justify-content:space-between}.difficulty-level{flex:1;min-width:60px;text-align:center;padding:.5rem;border-radius:4px;cursor:pointer;background-color:#0003;transition:background-color .2s}.difficulty-level:hover{background-color:#0000004d}.difficulty-level.active{background-color:var(--accent-color)}.chess-board-wrapper{position:relative}.timer-urgent{color:#dc3545;animation:pulse 1s infinite}.app-footer{margin-top:3rem;text-align:center;padding:1rem;font-size:.9rem;color:#ffffff80}.thinking-indicator-detailed{position:absolute;bottom:10px;right:10px;background-color:#000000d9;color:#fff;padding:12px;border-radius:6px;box-shadow:0 4px 12px #0000004d;font-size:14px;min-width:240px;max-width:320px;z-index:100;animation:fadeIn .3s ease-out;border-left:4px solid var(--accent-color)}.thinking-header{display:flex;align-items:center;gap:8px;margin-bottom:10px;padding-bottom:8px;border-bottom:1px solid rgba(255,255,255,.2);font-weight:700}.thinking-header i,.bot-color{color:var(--accent-color)}.thinking-stats{display:flex;flex-direction:column;gap:8px}.stat-row{display:flex;align-items:center;justify-content:space-between}.stat-label{font-size:12px;opacity:.8}.stat-value{font-weight:500}.depth-value{display:flex;align-items:center;gap:8px}.depth-bar{width:80px;height:6px;background-color:#fff3;border-radius:3px;overflow:hidden}.depth-progress{height:100%;background-color:var(--accent-color);transition:width .3s ease}.positive-score{color:#4caf50}.negative-score{color:#f44336}.thinking-moves{margin-top:8px;padding-top:8px;border-top:1px solid rgba(255,255,255,.2)}.moves-label{font-size:12px;opacity:.8;margin-bottom:4px}.moves-sequence{font-family:monospace;font-size:13px;background-color:#ffffff1a;padding:4px 8px;border-radius:4px;word-break:break-all}.coordinates-x,.coordinates-y{position:absolute;display:flex;font-size:.8rem;color:#fff;font-weight:600;pointer-events:none}.coordinates-x{bottom:-20px;left:0;right:0;justify-content:space-around}.coordinates-y{top:0;bottom:0;left:-20px;flex-direction:column;justify-content:space-around}.coordinate{display:flex;justify-content:center;align-items:center;width:20px;height:20px}@media (max-width: 768px){.chess-layout{grid-template-columns:1fr}.side-panel{order:2}.game-container{grid-column:1}.color-options,.difficulty-options{flex-direction:row}}