body{margin:0;font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Oxygen,Ubuntu,Cantarell,Fira Sans,Droid Sans,Helvetica Neue,sans-serif;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale}code{font-family:source-code-pro,Menlo,Monaco,Consolas,Courier New,monospace}*{margin:0;padding:0;box-sizing:border-box}:root{--background-color3: #6e6e6e;--background-color2: #a7a7a7;--background-color1: #cdcdcd;--background-color: #ffffff;--button-hover-color: #dddddd;--text-color: #000000;--font-size: 1rem;--global-light-square: #FFF8EA;--global-dark-square: #9E7676;--winner-king-background: rgb(22, 202, 76);--loser-king-background: rgb(190, 55, 55);--nav-bottum: #E0E0E0;--nav-shadow: rgba(0, 0, 0, .05);--settings-color: #c3d8f1;--settings-hover: #a3c7f3;--toggle-button-color: #68a4ed;--toggle-button-color-hover: #398bee;--shadow: rgba(0, 0, 0, .2);--dvh: 1vh;--evalbar-width: 30px;--sidebar-width: 250px;--players-height: 40px;--top-container-height: 6dvh;--max-board-size: calc(100vh - var(--top-container-height) - var(--players-height) * 2);--board-container-height: calc(var(--max-board-size) + 2 * var(--players-height));--chess-board-start-col: 1;--chess-board-end-col: -1;--board-gap: 5px;--square-size: calc(var(--max-board-size) / 8);--selected-border-color: rgb(35, 193, 53);--selected-shadow: rgb(151, 212, 177)}@media (max-width: 450px){:root{--max-board-size: 95dvw;--board-container-height: calc(var(--max-board-size) + 2 * var(--players-height));--square-size: calc(var(--max-board-size) / 8);--sidebar-width: 100vw;--evalbar-width: 0px;--chess-board-start-col: 1;--chess-board-end-col: -1}}.dark-theme{--background-color3: #bdbdbd;--background-color2: #999999;--background-color1: #6a6a6a;--background-color: #2b2b2b;--button-hover-color: #060606;--text-color: #ffffff;--font-size: 1rem;--global-light-square: #DCD7C9;--global-dark-square: #A27B5C;--winner-king-background: rgb(22, 202, 76);--loser-king-background: rgb(190, 55, 55);--nav-bottum: #4f4f4f;--nav-shadow: rgba(248, 248, 248, .05);--settings-color: #0b3c78;--settings-hover: #042247;--shadow: rgba(255, 255, 255, .287)}html,body{color:var(--text-color);background-color:var(--background-color);margin:0;padding:0;height:100vh;width:100vw;font-family:Inter,sans-serif;font-size:1rem;overscroll-behavior:none;touch-action:pan-x pan-y}.invalid-move{color:red;font-weight:700;margin-top:10px;animation:fadeOut 1s ease-in-out}@keyframes fadeOut{0%{opacity:1}to{opacity:0}}.game-over-overlay{position:fixed;top:0;left:0;width:100vw;height:100vh;background:#00000080;display:flex;align-items:center;justify-content:center;z-index:9999}.game-over-message{background:var(--background-color);color:var(--text-color);padding:20px 40px;font-size:28px;font-weight:700;border-radius:12px;box-shadow:0 4px 10px #ffffff4d;text-align:center}.restart-button{margin-top:20px;padding:10px 20px;font-size:20px;font-weight:700;color:#fff;background-color:#ff5722;border:none;border-radius:8px;cursor:pointer;transition:background .3s}.restart-button:hover{background-color:#e64a19}.routes{display:flex;flex-direction:column;width:13%;padding:10px;height:100vh;position:fixed;top:8%;gap:10px;text-align:center;z-index:10}.no-decoration{text-decoration:none}.player-name{border-radius:5px;padding:0;font-weight:700}.white-player-name{color:#fff;background-color:#aaa}.black-player-name{color:#000;background-color:#ddd}.player-names-wrapper{display:flex;justify-content:right;align-items:right;position:relative;height:var(--players-height);width:100%}.termination-msg{color:#0ac156;white-space:normal;word-wrap:break-word;overflow-wrap:break-word;margin-bottom:8px;max-width:90%;font-size:1.2rem;font-weight:700}.clickable{cursor:pointer}#settings-button{background-color:var(--settings-color);border:1px solid #a3c7f3}#settings-button:hover{background-color:var(--settings-hover)}.loading-screen{text-align:center;padding:50px;font-size:18px;color:#555}.main-container{display:flex;flex-direction:column;height:100vh;width:100%}.top-container{height:8%;display:flex;align-items:center;justify-content:center;font-size:1.5rem}.middle-container{height:calc(100dvh - var(--top-container-height));width:100dvw;display:flex;align-items:center;justify-content:center}.left-menu-bar{width:10%;display:flex;flex-direction:column;align-items:center;justify-content:left;font-size:1.2rem}.chess-container{background:var(--background-color);width:80%;height:calc(100dvh - var(--top-container-height));display:flex;position:relative}.left-panel{width:10%;display:flex;flex-direction:column;align-items:center;justify-content:center;position:relative}.centre-area{width:65%;display:flex;flex-direction:column;align-items:center;justify-content:center;aspect-ratio:1}.right-panel{width:25%;display:flex;flex-direction:column;align-items:center;justify-content:center;position:relative}.chess-board{width:95%;aspect-ratio:1 / 1;display:flex;align-items:center;justify-content:center;font-size:2rem;font-weight:700;color:var(--text-color);background-color:var(--background-color);border:3px solid var(--darkest)}@media (max-aspect-ratio: 1/1){.chess-board{height:80%;width:auto}}@media (min-aspect-ratio: 1/1){.chess-board{width:80%;height:auto}}.ad-banner{position:relative;width:10%;display:flex;flex-direction:column;align-items:center;justify-content:left;font-size:1.2rem}.bottom-container{height:3%;display:flex;align-items:center;justify-content:center;font-size:1.2rem}.analysis-container{width:80%;height:80vh;display:flex;flex-direction:column;align-items:center;justify-content:center;position:relative}.analysis-board{position:relative;height:80%;aspect-ratio:1 / 1;display:flex;align-items:center;justify-content:center;font-size:2rem;font-weight:700;color:var(--text-color);background-color:var(--background-color);border:3px solid var(--darkest)}.top-bar{margin-left:13%;margin-right:35%;width:95dvw;display:flex;align-items:center;justify-content:center;gap:10px}@media (max-width: 360px),(max-width: 450px){.top-bar{margin-left:0;margin-right:0;gap:5px}}.top-container{display:flex;justify-content:center;align-items:center;height:var(--top-container-height);width:100dvw;border-bottom:1px solid var(--nav-bottum);box-shadow:0 2px 5px var(--nav-shadow)}.action-button{background:var(--background-color);color:var(--text-color);border:1px solid var(--text-color);padding:8px 12px;border-radius:5px;font-size:.85rem;cursor:pointer;transition:all .3s ease}.action-button:hover{background:var(--button-hover-color)}.action-button:active{background:var(--button-hover-color);transform:scale(.98)}.theme-toggle-btn{background-color:var(--background-color);color:var(--text-color);border:1px solid var(--text-color);padding:.5rem 1rem;cursor:pointer;border-radius:5px;transition:background-color .3s ease}.theme-toggle-btn:hover{background-color:var(--button-hover-color)}body,html{margin:0;padding:0;overflow-x:hidden}.fen-chessboard-container{display:flex;flex-direction:column;justify-content:start;align-items:right;height:calc(100dvh - var(--top-container-height));width:80dvw;gap:0}.chessboard-container{display:grid;grid-template-columns:var(--max-board-size) calc(var(--square-size) * 2) 1fr;height:calc(100dvh - (var(--top-container-height)*2) - 10vh);width:80dvw;gap:10px}#chessboard{display:grid;grid-template-columns:repeat(8,var(--square-size));grid-template-rows:repeat(8,var(--square-size));width:calc(var(--max-board-size) + 4px);height:calc(var(--max-board-size) + 4px);border-radius:3px;aspect-ratio:1}.square{position:relative;width:var(--square-size);height:var(--square-size);display:flex;align-items:center;justify-content:center}.dark{background-color:var(--global-dark-square)}.light{background-color:var(--global-light-square)}img{width:calc(var(--max-board-size) / 8);height:calc(var(--max-board-size) / 8);cursor:grab}img:active{cursor:grabbing}.palette{display:flex;flex-direction:column;flex-flow:column wrap;min-width:var(--square-size);max-width:calc(var(--square-size) * 2);height:calc(var(--square-size)*7);background-color:var(--background-color1);border-radius:3px}.palette img{width:var(--square-size);height:var(--square-size);cursor:grab;z-index:100}.fen-popup{position:fixed;top:0;left:0;width:100%;height:100%;background:#00000080;display:flex;justify-content:center;align-items:center;z-index:999}.fen-popup-content{background:#fff;padding:20px;border-radius:8px}.fen-popup-buttons{margin-top:10px;display:flex;gap:10px}.palette-piece.selected,.pieceimg.selected{background-color:var(--selected-border-color);border-radius:4px;box-shadow:0 0 8px var(--selected-shadow)}.rank-label{position:absolute;top:2px;left:2px;font-size:10px;color:#555;font-weight:700}.file-label,.rank-label{position:absolute;font-weight:700;font-size:16px;color:#daa;pointer-events:none}.file-label{bottom:1px;right:1px}.rank-label{top:1px;left:1px}.square.light .file-label,.square.light .rank-label{color:var(--global-dark-square)}.square.dark .file-label,.square.dark .rank-label{color:var(--global-light-square)}.pieceimg{z-index:100}.castling{display:flex;flex-direction:column;justify-content:start;align-items:center;border-radius:4px;gap:3px}@media (max-width: 450px){.routes{display:none}.middle-container{flex-direction:column;align-items:center;justify-content:flex-start;width:100%}.fen-chessboard-container{width:100%;height:auto;align-items:center}.chessboard-container{grid-template-columns:1fr;grid-template-rows:var(--max-board-size) calc(var(--square-size) * 2) 1fr;width:100%;height:auto;justify-items:center}#chessboard{display:grid;grid-template-columns:repeat(8,var(--square-size));grid-template-rows:repeat(8,var(--square-size));width:calc(var(--max-board-size) + 4px);height:calc(var(--max-board-size) + 4px);border-radius:3px;aspect-ratio:1}.square{position:relative;width:var(--square-size);height:var(--square-size);display:flex;align-items:center;justify-content:center}.palette{flex-direction:row;flex-wrap:wrap;max-width:calc(var(--square-size) * 7);height:auto}.castling{flex-direction:row;flex-wrap:wrap;justify-content:center}}.board-editor-analysis-shell{position:fixed;left:0;top:calc(8% + 10.5rem);width:13%;max-width:13vw;max-height:min(32vh,280px);overflow-y:auto;overflow-x:hidden;z-index:5;padding:0 6px 8px 10px;box-sizing:border-box}.board-editor-page .middle-container{margin-left:13%;width:87%;max-width:calc(100vw - 13%);box-sizing:border-box}.board-editor-analysis-panel{display:flex;flex-direction:column;gap:.35rem;padding:.4rem .35rem;margin:0;max-width:100%;font-size:.8rem;border-left:3px solid var(--accent-color, #4a90d9);background:var(--background-color1, rgba(0, 0, 0, .04));border-radius:4px}.board-editor-analysis-row{display:grid;grid-template-columns:1fr;gap:.15rem;align-items:start}@media (min-width: 900px){.board-editor-analysis-row{grid-template-columns:minmax(0,5.5rem) 1fr}}.board-editor-analysis-pv .board-editor-analysis-value{font-family:ui-monospace,monospace;font-size:.7rem;word-break:break-word}.board-editor-analysis-label{color:var(--text-muted, #666);font-weight:500;font-size:.75rem}.board-editor-analysis-value{font-weight:600}.board-editor-analysis-error{color:#b00020;padding:.25rem .35rem;margin:0 0 .35rem;font-size:.75rem}.board-editor-evalbar-board-row{display:flex;flex-direction:row;align-items:flex-start;gap:var(--board-gap, 5px);width:100%}.board-editor-evalbar-wrap{flex-shrink:0;width:var(--eval-bar-width);height:var(--max-board-size)}.board-editor-evalbar-wrap .eval-container{height:100%}.fen-popup-overlay{position:fixed;top:0;left:0;width:100%;height:100%;background:#0006;display:flex;align-items:center;justify-content:center;z-index:1000}.fen-popup{position:relative;display:flex;flex-direction:column;justify-content:center;align-items:center;border-radius:8px;box-shadow:0 4px 10px #ffffff4d;width:var(--max-board-size);height:30dvh;background-color:var(--background-color)}.fen-close{position:absolute;top:8px;right:10px;background:none;border:none;font-size:1.5rem;color:var(--text-color);cursor:pointer}.fen-input-form{width:90%}.fen-input{width:100%;max-height:40px;padding:.5rem;margin:1rem 0;border:1px solid #ccc;border-radius:4px}.fen-actions{display:flex;justify-content:flex-end;gap:.5rem}.fen-submit{background-color:var(--toggle-button-color);color:#fff;border:none;padding:.4rem .8rem;border-radius:4px;cursor:pointer}.fen-submit:hover{background-color:var(--toggle-button-color-hover)}.fen-container{display:flex;align-items:center;gap:8px;margin:10px 0;min-width:var(--top-container-height)}.fen-label{font-weight:700;font-size:14px}.fen-display{padding:8px 12px;border-radius:5px;background-color:var(--background-color);font-family:monospace;min-width:300px;max-width:100%;overflow-x:auto}.copy-button{border:none;border-radius:5px;background-color:transparent;color:#fff;cursor:pointer;height:28px}.circle-tick{display:inline-flex;align-items:center;justify-content:center;width:24px;height:24px;border-radius:50%;background-color:#4caf50;color:#fff;font-size:16px;font-weight:700}.circle-cross{display:inline-flex;align-items:center;justify-content:center;width:24px;height:24px;border-radius:50%;background-color:red;color:#fff;font-size:16px;font-weight:700}@media (max-width: 450px){.fen-container{align-items:flex-start}.fen-display{width:calc(100dvw - 80px)}}.toast-wrapper{position:relative;display:inline-block}@media (min-width: 800px){.toast-button{border:none;background:none}.toast-message{display:none}}@media (max-width: 450px){.toast-button{font-size:1.5rem;cursor:pointer;transition:transform .2s ease-in-out;border:none;background:none}.toast-message{position:absolute;top:2.5rem;right:0;padding:.5rem 1rem;background-color:#fdd;color:#8b0000;border-radius:.25rem;box-shadow:0 2px 8px #0003;width:60dvw;word-wrap:break-word;white-space:normal;text-align:left;z-index:10001;border-color:#faa}}.switch{position:relative;display:inline-block;width:50px;height:28px}.switch input{opacity:0;width:0;height:0}.slider{position:absolute;cursor:pointer;background-color:#ccc;border-radius:34px;inset:0;transition:.4s}.slider:before{position:absolute;content:"";height:22px;width:22px;left:3px;bottom:3px;background-color:#fff;border-radius:50%;transition:.4s}input:checked+.slider{background-color:var(--toggle-button-color)}input:checked+.slider:before{transform:translate(22px)}.toggle-container{display:flex;justify-content:space-between;align-items:center;width:100%;border-radius:5px;border:1px solid var(--text-color);margin-left:20px;margin-right:20px;padding:10px}.toggle-label{font-size:16px;color:var(--text-color)}.move-toggle{display:flex;border:1px solid #333;border-radius:8px;overflow:hidden;width:200px}.move-option{flex:1;padding:10px;background-color:#f0f0f0;border:none;cursor:pointer;font-weight:700;transition:background-color .3s ease}.move-option.active{background-color:var(--toggle-button-color);color:#fff}.notice-board{display:flex;flex-direction:column;gap:3px;border:2px solid #ccc;padding:8px;border-radius:8px;width:100%}.notice-header{font-size:1.2em;font-weight:700;padding:8px;border-bottom:1px solid #eee}.notice-header.isIllegal{text-align:center;color:red;background-color:#ffe0e0;border-radius:8px}.notice-header.legal{text-align:center;color:green;background-color:#e0ffe0;border-radius:8px}.message{padding:8px;margin-bottom:8px;border:1px solid #ddd;border-radius:4px;color:var(--text-color);background-color:var(--background-color)}.message.error{color:#8b0000;background-color:#fdd;border-color:#faa}.message.warning{color:#b8860b;background-color:#fffacd;border-color:#eee8aa}.eval-wrapper{height:100%;width:var(--eval-bar-width);display:flex;flex-direction:column;align-items:center;justify-content:center;position:relative}.eval-container{height:100%;width:30px;border:2px solid black;border-radius:3px;background-color:#000;display:flex;flex-direction:column-reverse;overflow:hidden;transition:all .5s ease-in-out}.white-bar{background-color:#fff;width:100%;transition:height .5s ease-in-out}.eval-container.flipped{flex-direction:column}