@font-face{font-family:Space Grotesk;font-style:normal;font-display:swap;font-weight:500;src:url(/fly-chess/assets/space-grotesk-vietnamese-500-normal-BmEvtly_.woff2) format("woff2"),url(/fly-chess/assets/space-grotesk-vietnamese-500-normal-BTqKIpxg.woff) format("woff");unicode-range:U+0102-0103,U+0110-0111,U+0128-0129,U+0168-0169,U+01A0-01A1,U+01AF-01B0,U+0300-0301,U+0303-0304,U+0308-0309,U+0323,U+0329,U+1EA0-1EF9,U+20AB}@font-face{font-family:Space Grotesk;font-style:normal;font-display:swap;font-weight:500;src:url(/fly-chess/assets/space-grotesk-latin-ext-500-normal-DUe3BAxM.woff2) format("woff2"),url(/fly-chess/assets/space-grotesk-latin-ext-500-normal-3dgZTiw9.woff) format("woff");unicode-range:U+0100-02BA,U+02BD-02C5,U+02C7-02CC,U+02CE-02D7,U+02DD-02FF,U+0304,U+0308,U+0329,U+1D00-1DBF,U+1E00-1E9F,U+1EF2-1EFF,U+2020,U+20A0-20AB,U+20AD-20C0,U+2113,U+2C60-2C7F,U+A720-A7FF}@font-face{font-family:Space Grotesk;font-style:normal;font-display:swap;font-weight:500;src:url(/fly-chess/assets/space-grotesk-latin-500-normal-lFbtlQH6.woff2) format("woff2"),url(/fly-chess/assets/space-grotesk-latin-500-normal-CNSSEhBt.woff) format("woff");unicode-range:U+0000-00FF,U+0131,U+0152-0153,U+02BB-02BC,U+02C6,U+02DA,U+02DC,U+0304,U+0308,U+0329,U+2000-206F,U+20AC,U+2122,U+2191,U+2193,U+2212,U+2215,U+FEFF,U+FFFD}@font-face{font-family:Space Grotesk;font-style:normal;font-display:swap;font-weight:600;src:url(/fly-chess/assets/space-grotesk-vietnamese-600-normal-DUi7WF5p.woff2) format("woff2"),url(/fly-chess/assets/space-grotesk-vietnamese-600-normal-D6zpsUhD.woff) format("woff");unicode-range:U+0102-0103,U+0110-0111,U+0128-0129,U+0168-0169,U+01A0-01A1,U+01AF-01B0,U+0300-0301,U+0303-0304,U+0308-0309,U+0323,U+0329,U+1EA0-1EF9,U+20AB}@font-face{font-family:Space Grotesk;font-style:normal;font-display:swap;font-weight:600;src:url(/fly-chess/assets/space-grotesk-latin-ext-600-normal-DxxdqCpr.woff2) format("woff2"),url(/fly-chess/assets/space-grotesk-latin-ext-600-normal-VcznFIpX.woff) format("woff");unicode-range:U+0100-02BA,U+02BD-02C5,U+02C7-02CC,U+02CE-02D7,U+02DD-02FF,U+0304,U+0308,U+0329,U+1D00-1DBF,U+1E00-1E9F,U+1EF2-1EFF,U+2020,U+20A0-20AB,U+20AD-20C0,U+2113,U+2C60-2C7F,U+A720-A7FF}@font-face{font-family:Space Grotesk;font-style:normal;font-display:swap;font-weight:600;src:url(/fly-chess/assets/space-grotesk-latin-600-normal-DjKNqYRj.woff2) format("woff2"),url(/fly-chess/assets/space-grotesk-latin-600-normal-BflQw4A9.woff) format("woff");unicode-range:U+0000-00FF,U+0131,U+0152-0153,U+02BB-02BC,U+02C6,U+02DA,U+02DC,U+0304,U+0308,U+0329,U+2000-206F,U+20AC,U+2122,U+2191,U+2193,U+2212,U+2215,U+FEFF,U+FFFD}@font-face{font-family:IBM Plex Mono;font-style:normal;font-display:swap;font-weight:400;src:url(/fly-chess/assets/ibm-plex-mono-cyrillic-ext-400-normal-xuaO2J-f.woff2) format("woff2"),url(/fly-chess/assets/ibm-plex-mono-cyrillic-ext-400-normal-DMdlQ8Kv.woff) format("woff");unicode-range:U+0460-052F,U+1C80-1C8A,U+20B4,U+2DE0-2DFF,U+A640-A69F,U+FE2E-FE2F}@font-face{font-family:IBM Plex Mono;font-style:normal;font-display:swap;font-weight:400;src:url(/fly-chess/assets/ibm-plex-mono-cyrillic-400-normal-BSMlKf0J.woff2) format("woff2"),url(/fly-chess/assets/ibm-plex-mono-cyrillic-400-normal-CEL4l2ZJ.woff) format("woff");unicode-range:U+0301,U+0400-045F,U+0490-0491,U+04B0-04B1,U+2116}@font-face{font-family:IBM Plex Mono;font-style:normal;font-display:swap;font-weight:400;src:url(/fly-chess/assets/ibm-plex-mono-vietnamese-400-normal-BulugwFq.woff2) format("woff2"),url(/fly-chess/assets/ibm-plex-mono-vietnamese-400-normal-DDuiU_S-.woff) format("woff");unicode-range:U+0102-0103,U+0110-0111,U+0128-0129,U+0168-0169,U+01A0-01A1,U+01AF-01B0,U+0300-0301,U+0303-0304,U+0308-0309,U+0323,U+0329,U+1EA0-1EF9,U+20AB}@font-face{font-family:IBM Plex Mono;font-style:normal;font-display:swap;font-weight:400;src:url(/fly-chess/assets/ibm-plex-mono-latin-ext-400-normal-BmRBH3aV.woff2) format("woff2"),url(/fly-chess/assets/ibm-plex-mono-latin-ext-400-normal-D3D2R8hC.woff) format("woff");unicode-range:U+0100-02BA,U+02BD-02C5,U+02C7-02CC,U+02CE-02D7,U+02DD-02FF,U+0304,U+0308,U+0329,U+1D00-1DBF,U+1E00-1E9F,U+1EF2-1EFF,U+2020,U+20A0-20AB,U+20AD-20C0,U+2113,U+2C60-2C7F,U+A720-A7FF}@font-face{font-family:IBM Plex Mono;font-style:normal;font-display:swap;font-weight:400;src:url(/fly-chess/assets/ibm-plex-mono-latin-400-normal-DMJ8VG8y.woff2) format("woff2"),url(/fly-chess/assets/ibm-plex-mono-latin-400-normal-CvHOgSBP.woff) format("woff");unicode-range:U+0000-00FF,U+0131,U+0152-0153,U+02BB-02BC,U+02C6,U+02DA,U+02DC,U+0304,U+0308,U+0329,U+2000-206F,U+20AC,U+2122,U+2191,U+2193,U+2212,U+2215,U+FEFF,U+FFFD}:root{font-family:Avenir Next,PingFang SC,Microsoft YaHei,sans-serif;color:#30354f;background:#eef0f7;font-synthesis:none;--ink:#30354f;--muted:#747990;--purple:#6454b4;--line:#dce0ec;--paper:#fafbff;--mint:#3b897d}*{box-sizing:border-box}body{margin:0}button,input,select{font:inherit}button,a,input,select{-webkit-tap-highlight-color:transparent}button{cursor:pointer}button:disabled{cursor:default;opacity:.45}a{color:var(--purple);text-underline-offset:4px}button:focus-visible,a:focus-visible,select:focus-visible,input:focus-visible,summary:focus-visible{outline:3px solid #aa8fde;outline-offset:4px}svg{display:block}button{color:var(--ink)}.shell{max-width:1440px;padding:0 48px;margin:auto}.topbar{display:flex;align-items:center;justify-content:space-between;height:92px;border-bottom:1px solid var(--line)}.brand{display:flex;align-items:center;gap:12px;text-decoration:none;color:var(--ink)}.brand img{width:37px;height:37px}.brand strong{display:block;font:600 21px Space Grotesk,sans-serif;letter-spacing:-.8px}.brand small{display:block;font-size:10px;letter-spacing:3px;color:var(--muted);margin-top:3px}.topbar nav{display:flex;gap:30px;font-size:13px}.topbar nav a{color:var(--muted);text-decoration:none}.topbar nav a:first-child{color:var(--ink)}.release{font:11px IBM Plex Mono,monospace;color:var(--muted);display:flex;gap:8px;align-items:center}.release i{width:6px;height:6px;background:var(--mint);border-radius:50%}.intro{display:flex;justify-content:space-between;align-items:end;padding:40px 0 30px;gap:24px}.eyebrow{font:11px IBM Plex Mono,monospace;letter-spacing:2px;color:var(--purple);margin:0 0 12px}.intro h1{font-size:32px;font-weight:500;letter-spacing:-1.5px;margin:0;line-height:1.4}.intro h1 span{color:var(--purple)}.intro p:not(.eyebrow){color:var(--muted);font-size:13px;line-height:1.9;margin:10px 0 0}.intro-aside{display:flex;flex-direction:column;gap:9px;align-items:flex-end;flex-shrink:0}.tag{display:inline-flex;align-items:center;gap:7px;background:#e1e8e6;border:1px solid #cadbd5;color:#37786f;padding:6px 10px;border-radius:6px;font-size:11px;white-space:nowrap}.tag i{height:5px;width:5px;border-radius:50%;background:currentColor}.fine{font-size:11px;color:var(--muted)}.lab{display:grid;grid-template-columns:1fr 1.13fr;gap:24px;align-items:start}.panel{background:var(--paper);border:1px solid var(--line);border-radius:16px;overflow:hidden;box-shadow:0 4px 20px #34364c03}.panel-head{display:flex;justify-content:space-between;align-items:center;padding:19px 22px;border-bottom:1px solid var(--line);gap:12px}.panel-title{font-size:13px;font-weight:600;display:flex;gap:9px;align-items:center}.panel-title small{color:var(--muted);font-weight:400;font-size:11px}.panel-kicker{font:10px IBM Plex Mono,monospace;color:var(--muted)}.round-icon{display:grid;place-items:center;width:22px;height:22px;color:var(--purple)}.board-wrap{padding:23px 32px 19px;position:relative}.opponent{display:flex;align-items:center;gap:10px;margin-bottom:18px}.avatar{display:grid;place-items:center;width:32px;height:32px;border-radius:50%;background:#e9e6f5}.avatar img{width:25px;height:25px}.avatar.human{background:#e6e9f2;font-size:16px;color:#656f94}.person{display:flex;flex-direction:column;gap:3px}.person b{font-size:12px;font-weight:500}.person span{font-size:10px;color:var(--muted)}.player-bottom{margin:19px 0 0}.turn-badge{margin-left:auto;font-size:10px;color:var(--purple);background:#efebf8;border-radius:5px;padding:5px 8px}.board-frame{position:relative;padding:0 0 0 16px}.board{display:grid;grid-template-columns:repeat(8,1fr);aspect-ratio:1;overflow:hidden;border-radius:4px;box-shadow:0 7px 15px #36355112}.square{border:0;border-radius:0;display:grid;place-items:center;position:relative;padding:3px;background:#e9e8f1;aspect-ratio:1;min-width:0}.square.dark{background:#a3a4c0}.square.last{box-shadow:inset 0 0 0 100px #eecb6050}.square.selected{background:#a294ca;box-shadow:inset 0 0 0 3px #665297}.square.target:after{content:"";position:absolute;width:24%;height:24%;border-radius:50%;background:#40315b55;pointer-events:none}.square.capture:after{width:88%;height:88%;border:4px solid #40315b55;background:transparent}.square:hover{filter:brightness(1.045)}.piece{width:90%;height:90%;filter:drop-shadow(0 2px 1px #25243618);pointer-events:none}.square.selected .piece{transform:translateY(-2px)}.files{display:grid;grid-template-columns:repeat(8,1fr);margin:9px 0 0 16px;text-align:center;font:10px IBM Plex Mono,monospace;color:var(--muted)}.ranks{position:absolute;top:0;bottom:0;left:-3px;display:grid;grid-template-rows:repeat(8,1fr);align-items:center;font:10px IBM Plex Mono,monospace;color:var(--muted)}.board-actions{display:flex;justify-content:space-between;gap:10px;align-items:center;padding:16px 22px;border-top:1px solid var(--line);background:#f6f7fb}.actions-left{display:flex;gap:8px}.button{display:inline-flex;align-items:center;justify-content:center;gap:7px;background:#fafbff;border:1px solid #d8dce9;border-radius:7px;padding:8px 12px;font-size:12px;line-height:1.5;text-decoration:none;transition:background .15s}.button:hover:not(:disabled){background:#e9e6f5}.button.primary{background:var(--purple);color:#fff;border-color:var(--purple)}.button.primary:hover:not(:disabled){background:#5544a0}.icon-button{padding:8px 10px}.side-select{font-size:11px;border:0;background:transparent;color:var(--muted);max-width:100px}.status{min-height:52px;display:flex;align-items:center;gap:9px;padding:13px 22px;font-size:12px;line-height:1.7;border-top:1px solid var(--line)}.status-dot{height:6px;width:6px;flex:none;border-radius:50%;background:var(--mint)}.status.error{color:#ab4d57}.status.error .status-dot{background:currentColor}.move-strip{display:flex;gap:14px;align-items:start;padding:17px 5px;font-size:11px;color:var(--muted)}.move-strip b{font-weight:400;white-space:nowrap}.move-list{font-family:IBM Plex Mono,monospace;max-height:64px;overflow:auto;line-height:1.8;color:var(--ink)}.brain-stage{height:350px;position:relative;background:radial-gradient(ellipse at 50% 55%,#eeedf9 0,transparent 68%);overflow:hidden}.brain-canvas{position:absolute;inset:0}.brain-canvas canvas{display:block;touch-action:none}.brain-corner{position:absolute;left:22px;top:17px;font:10px IBM Plex Mono,monospace;color:#8a8ba5;pointer-events:none;line-height:1.8}.brain-phase{position:absolute;right:20px;top:18px;font-size:11px;color:var(--muted);max-width:58%;text-align:right}.brain-caption{position:absolute;bottom:16px;left:22px;right:22px;display:flex;justify-content:space-between;gap:10px;font-size:10px;color:var(--muted);pointer-events:none}.loading-overlay{position:absolute;inset:0;display:flex;flex-direction:column;align-items:center;justify-content:center;background:#fafbfff0;z-index:2;padding:35px;text-align:center}.loading-overlay[hidden]{display:none}.loading-orbit{position:relative;height:84px;width:84px;border:1px solid #d5cee9;border-radius:50%;display:grid;place-items:center;margin-bottom:20px}.loading-orbit:before{content:"";position:absolute;width:64px;height:64px;border:1px solid #b6acce;border-radius:50%;transform:rotateX(60deg) rotate(30deg)}.loading-orbit img{width:34px;height:34px}.loading-overlay b{font-size:13px;font-weight:500}.loading-overlay p{font-size:11px;color:var(--muted);line-height:1.8;max-width:320px}.load-track{height:3px;width:220px;background:#e4e1ee;margin:15px 0 8px;overflow:hidden;border-radius:2px}.load-track i{display:block;height:100%;background:var(--purple);width:0;transition:width .1s}.load-value{font:10px IBM Plex Mono,monospace;color:var(--muted)}.legend{display:flex;gap:18px;padding:0 22px 17px;flex-wrap:wrap;font-size:10px;color:var(--muted)}.legend span{display:flex;align-items:center;gap:5px}.legend i{width:6px;height:6px;border-radius:50%;background:var(--color)}.metrics{border-block:1px solid var(--line);display:grid;grid-template-columns:repeat(4,1fr);padding:17px 10px;background:#f5f6fb}.metric{padding:0 12px;border-right:1px solid var(--line)}.metric:last-child{border:0}.metric strong{font:500 23px Space Grotesk,sans-serif;letter-spacing:-.8px}.metric strong small{font-size:11px;margin-left:3px;color:var(--muted);letter-spacing:0}.metric span{display:block;font-size:10px;color:var(--muted);margin-top:6px}.neural-progress{height:2px;background:#eeebf5}.neural-progress i{display:block;height:100%;width:0;background:#8773c4;transition:width .1s}.readout{padding:19px 22px 16px}.readout-heading{display:flex;justify-content:space-between;align-items:center;gap:10px;margin-bottom:14px;font-size:12px}.readout-heading small{font-size:10px;color:var(--muted)}.candidates{min-height:112px}.empty-readout{font-size:12px;line-height:1.9;color:#84869d;padding:16px 0}.candidate{display:grid;grid-template-columns:55px 1fr 66px;gap:14px;align-items:center;margin-bottom:10px;font:11px IBM Plex Mono,monospace}.candidate .track{height:5px;background:#eeedf5;border-radius:3px;overflow:hidden}.candidate .track i{height:100%;display:block;background:#c1b8db;border-radius:3px}.candidate:first-child .track i{background:#7963ba}.candidate .score{color:var(--muted);text-align:right}.candidate:first-child{color:var(--purple)}.trace-line{display:flex;justify-content:space-between;align-items:center;font-size:10px;color:var(--muted);border-top:1px solid var(--line);padding-top:12px}.link-button{border:0;padding:0;background:transparent;color:var(--purple);font-size:11px;text-decoration:underline;text-underline-offset:4px}.canvas-fallback{padding:70px;font-size:13px;line-height:2;color:var(--muted)}.experiment{margin-top:26px;padding:22px 26px;display:flex;align-items:center;justify-content:space-between;gap:24px;background:#e4e6f1;border:1px solid #d6d9e8;border-radius:12px}.experiment-title{font-size:13px;font-weight:500;margin:0 0 7px}.experiment p{font-size:11px;color:#737990;line-height:1.8;margin:0}.experiment-controls{display:flex;align-items:end;gap:14px;flex-shrink:0}.field{display:flex;flex-direction:column;gap:6px;font-size:10px;color:var(--muted)}.field input,.field select{background:#f4f5fa;border:1px solid #d4d8e5;border-radius:5px;padding:7px 8px;font:11px IBM Plex Mono,monospace;color:var(--ink);width:91px;height:33px}.ablation-result{margin:13px 0 0;border:1px solid #cddfd8;border-radius:10px;padding:17px 22px;background:#eff8f4;font-size:12px;line-height:1.9;color:#39786b}.ablation-result[hidden]{display:none}.ablation-result strong{font-weight:600}.ablation-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:16px;margin-top:12px}.ablation-grid span{display:block;color:#728980;font-size:10px}.ablation-grid b{font:16px IBM Plex Mono,monospace}.about{display:grid;grid-template-columns:1fr 1fr;gap:48px;margin:48px 0 38px;scroll-margin-top:20px}.about h2{font-size:18px;font-weight:500;letter-spacing:-.4px;margin:0 0 17px}.about p{font-size:12px;line-height:2;color:var(--muted);margin:0 0 14px}.pipeline{display:flex;align-items:center;gap:10px;margin:23px 0;font-size:11px}.pipeline span{padding:9px 12px;background:#e5e7f1;border:1px solid #d9dcea;border-radius:6px}.pipeline span:nth-of-type(2){background:#e6e0f3;color:var(--purple);border-color:#d8cfee}.pipeline i{color:#a4a6b7;font-style:normal}.science-list{padding:0;list-style:none;margin:0}.science-list li{font-size:11px;line-height:1.9;color:var(--muted);padding:9px 0;border-top:1px solid var(--line)}.science-list b{color:var(--ink);font-weight:500}.source-row{display:flex;justify-content:space-between;align-items:baseline;border-bottom:1px solid var(--line);padding:12px 0;gap:12px}.source-row a{font:500 13px Space Grotesk,sans-serif;color:var(--ink);text-decoration:none}.source-row a:hover{color:var(--purple)}.source-row span{font-size:10px;color:var(--muted);text-align:right}.hash{font:10px IBM Plex Mono,monospace;color:var(--muted);word-break:break-all;line-height:1.9;margin-top:16px}.hash span{color:var(--purple)}details{margin-top:15px;font-size:11px;color:var(--muted);line-height:1.9}summary{cursor:pointer;color:var(--ink)}details p{margin-top:10px!important;font-size:11px!important}footer{display:flex;justify-content:space-between;gap:20px;padding:24px 0;border-top:1px solid var(--line);font-size:10px;color:var(--muted);line-height:1.8}footer b{font:500 12px Space Grotesk,sans-serif;color:var(--ink);margin-right:8px}.modal{border:1px solid var(--line);border-radius:14px;padding:25px;max-width:390px;background:var(--paper);color:var(--ink)}.modal::backdrop{background:#27284066;-webkit-backdrop-filter:blur(3px);backdrop-filter:blur(3px)}.modal h2{font-size:17px;font-weight:500;margin-top:0}.promotion-options{display:flex;gap:10px}.promotion-options button{border:1px solid var(--line);border-radius:8px;width:65px;padding:8px;background:#edeaf5;font-size:11px}.promotion-options svg{width:48px;height:48px;margin-bottom:5px}.modal .button{margin-top:15px}@media(min-width:1101px){.brain-stage{height:500px}.readout{padding-bottom:20px}}@media(max-width:1100px){.shell{padding:0 28px}.intro h1{font-size:28px}.lab{gap:18px;grid-template-columns:1fr 1fr}.board-wrap{padding:20px 20px 17px}.brain-stage{height:305px}.metric{padding:0 8px}.metric strong{font-size:20px}.legend{gap:12px}.experiment{align-items:start}.experiment-controls{gap:10px}.about{gap:30px}.release{display:none}}@media(max-width:800px){.shell{padding:0 20px}.topbar{height:78px}.topbar nav{gap:18px;font-size:11px}.intro{padding-top:28px;align-items:start;flex-direction:column;gap:15px}.intro h1{font-size:27px}.intro-aside{flex-direction:row;align-items:center;gap:12px}.lab{grid-template-columns:1fr;gap:12px;max-width:600px;margin:0 auto}.board-wrap{padding:22px 34px 18px}.brain-stage{height:350px}.experiment{flex-direction:column;margin-top:22px;gap:18px}.experiment-controls{width:100%;flex-wrap:wrap}.experiment-controls .button{margin-left:auto}.about{grid-template-columns:1fr;gap:32px;margin-top:36px}.metrics{padding:17px 12px}.metric strong{font-size:23px}.move-strip{padding:10px 4px 5px}.readout{padding-bottom:20px}.candidates{min-height:96px}}@media(max-width:420px){.shell{padding:0 13px}.brand strong{font-size:18px}.brand small{font-size:8px}.brand img{width:30px;height:30px}.topbar nav{gap:12px}.topbar nav a:nth-child(2){display:none}.intro h1{font-size:24px;letter-spacing:-1px}.intro p:not(.eyebrow){font-size:12px}.board-wrap{padding:20px 22px 17px}.panel-head{padding:16px 18px}.brain-stage{height:285px}.brain-caption{font-size:9px}.metric strong{font-size:21px}.metric span{font-size:9px}.metrics{padding:14px 5px}.legend{gap:11px;padding-left:18px}.board-actions{padding:13px 15px}.button{padding:8px 10px;font-size:11px}.experiment{padding:19px}.ablation-grid{grid-template-columns:1fr;gap:10px}.pipeline{gap:6px;font-size:10px}.pipeline span{padding:8px}.source-row{gap:8px}.source-row a{font-size:12px}footer{flex-direction:column;gap:5px}}@media(prefers-reduced-motion:reduce){*,*:before,*:after{transition:none!important;scroll-behavior:auto!important}}
