@font-face{font-family:DM Sans Variable;font-style:normal;font-display:swap;font-weight:100 1000;src:url(/assets/dm-sans-latin-ext-wght-normal-BOFOeGcA.woff2) format("woff2-variations");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:DM Sans Variable;font-style:normal;font-display:swap;font-weight:100 1000;src:url(/assets/dm-sans-latin-wght-normal-Xz1IZZA0.woff2) format("woff2-variations");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:Manrope Variable;font-style:normal;font-display:swap;font-weight:200 800;src:url(data:font/woff2;base64,d09GMgABAAAAAAn4ABMAAAAAEwQAAAmOAAEAAAAAAAAAAAAAAAAAAAAAAAAAAAAAGjQbgnQcLj9IVkFSgQEGYD9TVEFUgQIAgQovahEICok0h0ULIAAwhzoBNgIkAzwEIAWHJgeBDgwHG6QQUdRKTmoBFD8K42bniObKrG3LZFcMWZzFmrjTFhQ6TVTqPJcInrfrvzq3b2PGn1wwMiNYGTy9ViREYARlL1zAGcPdPqBt3gNWrfKthv4xnM+b9caw+wmjgEUVRjHXhS6jgCK6zf5HiWQacJpGdAgdrbV6g/Rf1BfxRqZVQnrxRVWSJb6RLFnyu0elilmjeoSQCKnxsmwLaddUMjnksriSYuuPl06EAl7KfAiWQjCUETz0zNZ3EII94CDQtzkMfZ/9IkkY8tZRZTDky5ZVwBAM+GYpdd4ZVAWYImnLkiTg48l79gGx3D+VBtLeyg8u7bJAd4uo0pFuQBFysE9C95l0W4Fkiao6GfrDbu77lVU7wk9cV3uqOsXmQiMkhVKl1ugjzUAJBSIkkVWHijkpkVSyUFsgVBuJMA0N+ZnXtyUv5yMigGdfQRmwL1AAjQ3YXG6iIFNSUdPQo8+AISPGAltBMDQRAtyf4ZspLlZkpyOVoMZPvFGWzvk8p5SUC/NWPMj6T2/Yas2EdlON5GkfdkeFwVGjta825H89NIenlLWAPAp5h1KDtRhCaAQWMsFKtEvOKpIhgLHlXPARokkgEGEOAkqxJRQpKYq4ezahIiLHP6hZpqMbV0pUF2vdvEimLEQ/iIUYLgYWs0VXGVlLTOPdaPmFfCC/XrtzqVo1ez7vz6+Kd2+7o11ZJ+4MreLbB5BKVGxobAq4jZYalZ5aX2CKJiwUuc9GNJyi4M8bGyKcdjSRrG4JohdF8buJfmQefbYYREnMFsOoiNliFDVxmRgL0XUmUMLqzW0A4gCQAhWGYCQpFNukwXhIkPMsbRI19ewtw8Cp2Wj/Ro5cM2OTAbJAvZ/L4opBXb9+UHscYuOKM/W8isgwN26Exexjizmfnlp9dE3hOSqdZ/F5QqbckIlPb+oKfXxd6hftJ7Sm/uyPYpONza84CRlMNk/uhOrLpyf53982++zRkXNu3g3VF8qFbx1+7fbHZ9DrB3VXWNSmhnT2vrwS1+1Z+kHGBaZIhnnvuLBTNDeA340D1DWu5/jEa9pVfl6+Jij+yo3EELNixXCLjr173Q5eDP7Y7/L4iQFHbjpaJLFoP4cCsYP6sAPL7gMHNg53yYjqxqTDrYqLDl5DzW/eTLjYxCvucprjI3yl2ykKowKUC2Ox2FJLFo6Fa1HBWLC2jMCIIBEmklkYhmkpmBhTm/LCvJAH5oGcMKcgFEP1xUdho8ANPa6RFD99/PN60fjj9eXy2Eex4B5MpmRapXidzFk1p4uLk3+hn6jAP9ovJcXPPwk8o/0ltizbdbnTprvx4PSxT0VZ3Xc772aN7RflgbXRYwc3hLNO+k878nxGwfuVM8m8Gs7WEoVGWLHwSpx4vNSHBCMNqJ4m15Kp/TfHHVkQd++eY7PGN4W5byTs+6Ft8Ozvb/D60btv37de8ER0mS3P/0sLW84qGjEVkwztPzz06eGUWwKLwPb0D/WFd3vltl2aP276KpM0JNz6AfnAnZ5ADlF2zVyZ2OkxHSMxWPMnSZLbbDR3F1UjPVqp4d68da13F1YZujdWw7271iecO2l9+/4p47Oztjck355/75wFOI+VdGDqbNGs+ISgxg3iB2jb2r+b0CWsNLHIM4sdv8SDSFBP/Oromz6FNCWw2iMTxV0R8QLyBTkpe0j5+pSSJOOTB5Mck/gh3IopuNQnhKj02t3FL80gGbEh89SZcwTxcYt5cZT/nMnB3uXfPy8BSpVMBuRx+ZhACGzDBmwHsJRAjhotOnzuj2wDz3ug2wOUAY2NgZln9/TK/enG/oE4rO1wxvGUFMAxsZ0qNjRC7hl9d17e7imbgDt6uJXhUobDg7v3RX/yRCKxgMhfyiKcZfbpk0wmCcdQlIAOHeakXLvCNt++WfKiozNqSZxxJotn+c0a7DdPsx7DPYgKIDxwwYUZDg9aJbxocTjcwovr9WAsVV32mQoiiIOCHc60Oltst9qCQYuCqN1yHo0Kj60OgI2OqmiuBUWrNA0NDhYCDcdpmMrs1fZZ0xdTzMr1HdPtIHstYhqaPDDA5YxUDx7J4fJiisBSDI/L6G/bn34GNy8Q2g044ZTulAdFLb0tI6NNxfj3DzLjWiNGxje1pz7aXOcNV68lDPEd2SXl6VfBuwmHzdf1gxFy1HvA7pD8I2BnnmyGw852Cg5XbgIdEEGE5UCzen5jTlG6JCU5iajlxVcsXvbcS0SAcg1dcesWJLVK8+hYHOYQ+Pjy+EyVGXP0aPTFagrV9E03hCQvYx+g47KGq+1GsLj8uBIyihNw33YUe8PNC4BOJ3Lm1AglLV3nCuvUdIP+v15tVGbWIwgxLVpPkfpthCGpTKG+oA/DQfsKKvxhScqaN6FuElAUtTKv2UYgOmQegsN/n7njHUju8wM4VTcm+Q8xfX9SFwjTzdVqu95UOWSIGOabH8OGBEba//8Yxl3GcPdP/dMBOoSX/0z5SZmBoLbaPs+9asaMpb36yknKaw6FqWZa6A5vDa02mhkOba1q6KtLV208xrkwmW5C4VD6n2fvRjADy2qDYYnNy+H10Fq0LMbNzS863gkO7iQ8eC48/Ny5m59tOcEso3u7Qg3yrqDL6eKXwJAuWnhylfbWrRObe66rzX59+XDtzusnL66dI/86ArmtLlzED860Ef3bFPV78OX/zFTA11fcBn2Vntb7qiGBSgLBHyuv/uEaqqoTgSpOyjlzh86me1Vriv7i9rLPLvtghWmSnblRbAsBJL/4dScSQTBxOivHMO5QvBBY0iheJvfwWLxLOGzYKZyM4zVc2Cll46zEpeUV4MqGEWZj22SdOxhGAjgs9AEnfT+RoiMfcDb0GS5NncKVxju4Nt/mRk13O9Gz3FLct5oCD6wkwUNrCfHIUg6SMf8LwQGyVaBUqpLPW5BaMpRshEpl8nS1qw5dgnzlik8QBXmdy5UrIH74heTKZKMSilQso4hsRiGraQZRzxpNGqlEJMsXuAU7GlcR8mWSykUpVkWGyIf0a8v4qEQp5CtGsMiZa+4ESYQy+WilCiguHzxMXO54ogShooTV2bj2z1zL6DYSoImoQ8lFUWxMLBNQQgLkV2tHYgUoIbkuREz+fJHKxxWBcnvu3KQppFCxLkguB1NyVSp/TknRvNwYlCdbblWu3ze6owHdWluhE5tgQ6ej2SV65CijijoaRfSiH4Nqz1OpfEW+WeI/oU0ly60zkV9YzOQSYtZVEGYmrysTZAJkY4qZtIBD9/LYTIK7Nww3vMiYBwA=) format("woff2-variations");unicode-range:U+0460-052F,U+1C80-1C8A,U+20B4,U+2DE0-2DFF,U+A640-A69F,U+FE2E-FE2F}@font-face{font-family:Manrope Variable;font-style:normal;font-display:swap;font-weight:200 800;src:url(/assets/manrope-cyrillic-wght-normal-Dvxsihut.woff2) format("woff2-variations");unicode-range:U+0301,U+0400-045F,U+0490-0491,U+04B0-04B1,U+2116}@font-face{font-family:Manrope Variable;font-style:normal;font-display:swap;font-weight:200 800;src:url(/assets/manrope-greek-wght-normal-DL7QRZyv.woff2) format("woff2-variations");unicode-range:U+0370-0377,U+037A-037F,U+0384-038A,U+038C,U+038E-03A1,U+03A3-03FF}@font-face{font-family:Manrope Variable;font-style:normal;font-display:swap;font-weight:200 800;src:url(/assets/manrope-vietnamese-wght-normal-usUDDRr7.woff2) format("woff2-variations");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:Manrope Variable;font-style:normal;font-display:swap;font-weight:200 800;src:url(/assets/manrope-latin-ext-wght-normal-Ch3YOpNY.woff2) format("woff2-variations");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:Manrope Variable;font-style:normal;font-display:swap;font-weight:200 800;src:url(/assets/manrope-latin-wght-normal-DHIcAJRg.woff2) format("woff2-variations");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,.appearance-preview-green{color-scheme:dark;--bg: #131914;--sidebar: #111612;--surface: #1b231d;--surface-recessed: #151d15;--surface-raised: #222c24;--surface-hover: #2b382c;--line: #364330;--line-strong: #6b8058;--text: #ecf0e7;--text-secondary: #c2ccb7;--muted: #a3b297;--subtle: #91a183;--accent: #b7dd8f;--accent-bright: #c9eba7;--accent-surface: #293923;--accent-shadow: #718e50;--on-accent: #203018;--control-thumb: #ffffff;--shadow: #081007;--scrim: #070e09bf;--danger-surface: #382821;--danger-border: #97674e;--danger-text: #f1c2a8;--warning-surface: #363222;--warning-text: #e9cd85;--success-surface: #273d29;--success-text: #bddaab}:root[data-theme=black],.appearance-preview-black{color-scheme:dark;--bg: #0f1115;--sidebar: #0b0d10;--surface: #191c22;--surface-recessed: #14171c;--surface-raised: #232730;--surface-hover: #2b303a;--line: #343c49;--line-strong: #6d7b91;--text: #eff3f9;--text-secondary: #c5cddb;--muted: #abb6c6;--subtle: #929fb2;--accent: #b8cee8;--accent-bright: #d3e1f1;--accent-surface: #263246;--accent-shadow: #5e738d;--on-accent: #182536;--shadow: #000000;--scrim: #080c14c4;--danger-surface: #342329;--danger-border: #a16672;--danger-text: #f4c0c7;--warning-surface: #343024;--warning-text: #efd193;--success-surface: #20362e;--success-text: #a4dbbd}:root[data-theme=white],.appearance-preview-white{color-scheme:light;--bg: #f5f6f8;--sidebar: #ffffff;--surface: #ffffff;--surface-recessed: #edf1f5;--surface-raised: #f0f3f6;--surface-hover: #e5ebf1;--line: #d1d9e2;--line-strong: #718195;--text: #202936;--text-secondary: #394555;--muted: #586878;--subtle: #5e6b7b;--accent: #3b6243;--accent-bright: #2e5136;--accent-surface: #e4eee6;--accent-shadow: #27462d;--on-accent: #ffffff;--shadow: #465268;--scrim: #1420318c;--danger-surface: #fff0ea;--danger-border: #b96747;--danger-text: #863719;--warning-surface: #fff2d2;--warning-text: #785100;--success-surface: #e4f3e9;--success-text: #28603c;--move-brilliant-text: #096760;--move-great-text: #67418f;--move-best-text: #326217;--move-excellent-text: #326217;--move-good-text: #486041;--move-book-text: #505c77;--move-inaccuracy-text: #88510c;--move-mistake-text: #983d1d;--move-blunder-text: #a1293f;--move-miss-text: #864a31;--move-forced-text: #59616c}:root{font-family:DM Sans Variable,sans-serif;color:var(--text);background:var(--bg);font-synthesis:none;text-rendering:optimizeLegibility;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;--sidebar-width: 204px}*{box-sizing:border-box}body{margin:0;min-width:360px}button,input,textarea,select{font:inherit}button,a,input,textarea,select{-webkit-tap-highlight-color:transparent}button{cursor:pointer;color:inherit}button:disabled{cursor:not-allowed}button,input,textarea,select{outline:none}button:focus-visible,a:focus-visible,input:focus-visible,textarea:focus-visible,select:focus-visible{outline:2px solid var(--accent);outline-offset:4px}button{transition:box-shadow .18s,transform .18s}button:not(:disabled):active{transform:translateY(1px)}button:disabled{opacity:.42}a{color:var(--accent);text-decoration:none}button svg,a svg{flex-shrink:0}h1,h2,h3,h4,p{margin:0}button{border:0}::selection{background:var(--accent);color:var(--on-accent)}::-webkit-scrollbar{width:5px;height:5px}::-webkit-scrollbar-track{background:transparent}::-webkit-scrollbar-thumb{background:var(--line-strong);border-radius:9px}.visually-hidden{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}.eyebrow{color:var(--muted);font-size:10px;font-weight:700;letter-spacing:.16em;line-height:1.5}.status-dot{width:6px;height:6px;border-radius:50%;background:var(--accent);box-shadow:0 0 9px color-mix(in srgb,var(--shadow) 14.1%,transparent);flex-shrink:0}.icon-button{display:inline-flex;align-items:center;justify-content:center;width:34px;height:34px;border-radius:8px;background:transparent;color:var(--muted);flex-shrink:0}.icon-button:hover:not(:disabled){color:var(--text);background:var(--surface-hover)}.icon-button.selected,.icon-button.is-saved{color:var(--accent)}.primary-button{display:inline-flex;gap:10px;align-items:center;justify-content:center;min-height:45px;border-radius:9px;padding:11px 20px;background:var(--accent);color:var(--on-accent);font-size:13px;font-weight:750;box-shadow:0 2px 0 var(--shadow),0 4px 14px color-mix(in srgb,var(--shadow) 13.3%,transparent)}.primary-button:hover:not(:disabled){background:var(--accent-bright);box-shadow:0 2px 0 var(--shadow),0 4px 22px color-mix(in srgb,var(--shadow) 12.5%,transparent)}.secondary-button{display:inline-flex;align-items:center;justify-content:center;gap:8px;padding:10px 15px;background:var(--surface-raised);border:1px solid var(--line);border-radius:8px;color:var(--text);font-size:12px;font-weight:650}.secondary-button:hover{border-color:var(--line-strong);background:var(--surface-hover)}.text-button{background:none;padding:6px;color:var(--muted);font-size:12px}.text-button:hover{color:var(--accent)}.spin{animation:spin 1.7s linear infinite}@keyframes spin{to{transform:rotate(360deg)}}@media(prefers-reduced-motion:reduce){*,*:before,*:after{animation-duration:.01ms!important;animation-iteration-count:1!important;transition-duration:.01ms!important;scroll-behavior:auto!important}}.studio-modal{color:var(--text);background:var(--surface);border:1px solid var(--line-strong);border-radius:16px;width:min(560px,calc(100vw - 32px));max-height:calc(100dvh - 55px);padding:16px 0;overflow:hidden;box-shadow:0 30px 100px color-mix(in srgb,var(--shadow) 60%,transparent)}.studio-modal[open]{display:flex;flex-direction:column}.modal-scroll{min-height:0;overflow-y:auto;padding:10px 26px}.studio-modal-wide{width:min(740px,calc(100vw - 32px))}.studio-modal::backdrop{background:var(--scrim);-webkit-backdrop-filter:blur(6px);backdrop-filter:blur(6px)}.modal-heading{display:flex;align-items:flex-start;justify-content:space-between;gap:16px;margin-bottom:23px}.modal-heading h2{font-family:Manrope Variable,sans-serif;font-size:22px;font-weight:700;letter-spacing:-.7px;line-height:1.4}.modal-heading p{color:var(--muted);font-size:11px;line-height:1.7;margin-top:7px}.modal-heading .icon-button{margin:-5px -8px 0 0}.import-dropzone{border:1px dashed var(--line-strong);background:color-mix(in srgb,var(--accent-surface) 50.2%,transparent);border-radius:10px;padding:22px 18px;display:flex;align-items:center;gap:13px;margin-bottom:24px}.import-dropzone.dragging{border-color:var(--line-strong);background:var(--accent-surface)}.dropzone-icon{display:grid;place-items:center;width:44px;height:44px;background:var(--accent-surface);border-radius:10px;color:var(--accent)}.import-dropzone>div{display:flex;flex-direction:column;gap:4px}.import-dropzone strong{font-size:13px;color:var(--text)}.import-dropzone>div>span{font-size:11px;color:var(--text-secondary)}.import-dropzone>div button{background:none;color:var(--accent);padding:0;text-decoration:underline;text-underline-offset:3px}.file-size{margin-left:auto;color:var(--muted);font-size:9px;white-space:nowrap}.field-label{display:block;font-size:9px;letter-spacing:.12em;font-weight:650;color:var(--muted);margin-bottom:10px}.pgn-input{width:100%;min-height:155px;resize:vertical;max-height:360px;background:var(--surface-recessed);border:1px solid var(--line-strong);border-radius:8px;padding:14px;color:var(--text);font-family:ui-monospace,SFMono-Regular,Menlo,monospace;font-size:11px;line-height:1.9}.pgn-input::placeholder{color:var(--subtle)}.import-submit{display:flex;align-items:center;justify-content:flex-end;gap:15px;margin-top:16px}.import-submit>span{display:flex;align-items:center;gap:5px;font-size:9px;color:var(--muted)}.import-submit .primary-button{font-size:11px;min-height:40px;padding:10px 16px}.inline-error{padding:11px 12px;background:color-mix(in srgb,var(--danger-surface) 31%,transparent);color:var(--danger-text);font-size:11px;line-height:1.7;margin-top:10px;border:1px solid var(--danger-border);border-radius:6px}.sample-divider{display:flex;align-items:center;gap:16px;color:var(--muted);font-size:8px;font-weight:650;letter-spacing:.1em;margin:24px 0 17px}.sample-divider:before,.sample-divider:after{content:"";flex:1;height:1px;background:var(--surface-raised)}.sample-game-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:10px}.sample-game{position:relative;display:flex;flex-direction:column;text-align:left;background:var(--surface-raised);border:1px solid var(--line-strong);border-radius:9px;padding:14px;min-width:0}.sample-game:hover{background:var(--surface-hover);border-color:var(--line-strong);transform:translateY(-2px)}.sample-game>svg{color:var(--text-secondary);margin-bottom:12px}.sample-tag{color:var(--muted);font-size:8px;margin-bottom:5px}.sample-game>strong{font-size:12px;line-height:1.5;font-weight:650}.sample-game>p{font-size:9px;line-height:1.8;color:var(--text-secondary);margin:8px 0 14px}.sample-link{display:flex;gap:5px;align-items:center;color:var(--accent);margin-top:auto;font-size:9px}.settings-section+.settings-section{margin-top:25px;padding-top:23px;border-top:1px solid var(--line)}.settings-section>h3{font-size:9px;letter-spacing:.12em;color:var(--text-secondary);font-weight:650;margin-bottom:13px}.theme-options{display:flex;gap:9px}.section-description{color:var(--muted);font-size:11px;line-height:1.7;margin:-3px 0 15px}.appearance-options{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:10px}.appearance-option{position:relative;display:flex;align-items:center;flex-direction:column;gap:8px;padding:10px 8px 12px;border:1px solid var(--line-strong);border-radius:10px;background:var(--surface-raised);color:var(--text);min-width:0}.appearance-option:hover{background:var(--surface-hover)}.appearance-option.chosen{border-color:var(--accent);background:var(--accent-surface);box-shadow:inset 0 0 0 1px var(--accent)}.appearance-option>strong{font-size:11px;font-weight:650;line-height:1.4}.appearance-option>span:last-of-type{color:var(--muted);font-size:9px;line-height:1.5}.appearance-option>svg{position:absolute;top:6px;right:6px;background:var(--accent);color:var(--on-accent);border-radius:50%;box-sizing:content-box;padding:3px}.appearance-preview{display:grid;grid-template-columns:14% 43% 1fr;align-items:stretch;gap:5px;width:100%;height:64px;padding:7px 5px;background:var(--bg);border:1px solid var(--line);border-radius:5px}.preview-sidebar{background:var(--sidebar);border-right:1px solid var(--line)}.preview-board{align-self:center;aspect-ratio:1;background:repeating-conic-gradient(#e4e9cf,#e4e9cf 25%,#78976b 0%,#78976b 50%) 50% / 12px 12px;border-radius:2px}.preview-panel{display:flex;flex-direction:column;justify-content:center;gap:5px;background:var(--surface);border:1px solid var(--line);padding:4px;border-radius:3px}.preview-panel i{height:3px;border-radius:2px;background:var(--accent)}.preview-panel i:nth-child(2){width:70%;background:var(--muted)}.preview-panel i:nth-child(3){height:7px}.theme-option{background:var(--surface-raised);border:1px solid var(--line-strong);border-radius:8px;padding:12px;display:flex;flex-direction:column;align-items:center;gap:9px;flex:1;position:relative;font-size:10px;color:var(--text-secondary)}.theme-option.chosen{border-color:var(--accent);background:var(--accent-surface);color:var(--accent)}.theme-option>svg{position:absolute;top:7px;right:7px;color:var(--accent)}.theme-preview{width:46px;height:46px;display:grid;grid-template-columns:1fr 1fr;border-radius:4px;overflow:hidden;border:1px solid var(--line-strong)}.theme-preview i:nth-child(1),.theme-preview i:nth-child(4){background:var(--square-light)}.theme-preview i:nth-child(2),.theme-preview i:nth-child(3){background:var(--square-dark)}.theme-preview.board-theme-walnut i{background-image:url(/textures/wood-grain.svg);background-size:180px 180px;background-blend-mode:multiply}.toggle-row{display:flex;align-items:center;justify-content:space-between;margin-top:20px;cursor:pointer;position:relative}.toggle-row strong{font-size:12px;font-weight:550}.toggle-row>span:first-child{display:flex;flex-direction:column;gap:4px}.toggle-row>span:first-child>span{font-size:10px;color:var(--muted)}.toggle-row input{-webkit-appearance:none;-moz-appearance:none;appearance:none;position:absolute;right:0;width:37px;height:23px;margin:0;border-radius:20px;cursor:pointer;z-index:2}.toggle-track{width:37px;height:23px;background:var(--line-strong);border-radius:20px;position:relative}.toggle-track:after{content:"";width:17px;height:17px;background:var(--control-thumb);border-radius:50%;position:absolute;top:3px;left:3px;transition:transform .2s}.toggle-row input:checked+.toggle-track{background:var(--accent)}.toggle-row input:checked+.toggle-track:after{background:var(--on-accent);transform:translate(14px)}.depth-options{display:flex;flex-direction:column;gap:8px}.depth-option{display:flex;align-items:center;gap:12px;background:var(--surface-raised);border:1px solid var(--line);border-radius:8px;padding:14px;text-align:left}.depth-option>svg{color:var(--accent)}.depth-option.chosen{background:var(--accent-surface);border-color:var(--accent)}.depth-option>span:nth-child(2){flex:1}.depth-option strong{font-size:12px;font-weight:650;color:var(--text)}.depth-option strong>span{color:var(--text-secondary);font-size:9px;font-weight:400;margin-left:9px}.depth-option p{color:var(--muted);font-size:10px;line-height:1.7;margin-top:4px}.radio-indicator{border:1px solid var(--line-strong);width:13px;height:13px;flex-shrink:0;border-radius:50%}.chosen .radio-indicator{border:4px solid var(--accent);background:var(--on-accent)}.settings-note{font-size:10px;margin-top:11px;color:var(--warning-text);line-height:1.6}.settings-engine{display:flex;align-items:center;gap:11px;background:var(--surface-recessed);border:1px solid var(--line-strong);border-radius:8px;margin-top:23px;padding:14px}.settings-engine>svg{color:var(--accent);flex-shrink:0}.settings-engine>svg:last-child{margin-left:auto;color:var(--accent)}.settings-engine strong{font-size:11px;color:var(--text);font-weight:650}.settings-engine p{font-size:9px;color:var(--muted);margin-top:5px}.library-view{min-height:70vh}.library-view .workspace-heading{margin-bottom:32px}.library-view h1{margin-top:7px}.library-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(290px,1fr));gap:20px}.library-card{background:linear-gradient(125deg,var(--surface-raised),var(--surface));border:1px solid var(--line-strong);border-radius:11px;padding:18px}.library-card-top{display:flex;align-items:center;justify-content:space-between;gap:8px}.library-opening{color:var(--accent);font-size:10px;border:1px solid var(--line-strong);background:var(--accent-surface);border-radius:5px;padding:5px 7px}.library-card-top .icon-button{width:25px;height:25px}.library-match{display:flex;align-items:center;gap:10px;margin:20px 0}.library-match>div:nth-child(2){display:flex;flex-direction:column;gap:5px;min-width:0}.library-match strong{font-size:13px}.library-match>div>span{font-size:11px;color:var(--muted)}.library-result{margin-left:auto;color:var(--accent);background:var(--accent-surface);border:1px solid var(--line-strong);border-radius:4px;font-size:11px;padding:4px 6px}.library-stats{display:flex;align-items:center;justify-content:space-between;color:var(--muted);font-size:10px}.library-stats>span{display:flex;align-items:center;gap:4px}.library-accuracy{display:flex;gap:24px;padding-top:17px;margin-top:17px;border-top:1px solid var(--line-strong)}.library-accuracy>span{color:var(--text-secondary);font-size:9px;display:flex;flex-direction:column;gap:3px}.library-accuracy strong{color:var(--text);font-size:25px;font-family:Manrope Variable,sans-serif;letter-spacing:-1px}.library-open{display:flex;align-items:center;justify-content:space-between;padding:13px 0 0;margin-top:17px;border-top:1px solid var(--line-strong);background:none;color:var(--accent);width:100%;font-size:11px}.library-open:hover{color:var(--accent)}.empty-library{display:flex;flex-direction:column;align-items:center;text-align:center;padding:75px 20px;background:radial-gradient(ellipse at top,color-mix(in srgb,var(--surface-hover) 14.5%,transparent),transparent 60%);border:1px dashed var(--line-strong);border-radius:15px}.empty-library>span{display:grid;place-items:center;width:77px;height:77px;border:1px solid var(--line-strong);color:var(--text);border-radius:19px;background:var(--surface-raised);margin-bottom:25px}.empty-library h2{font-family:Manrope Variable,sans-serif;font-size:24px;letter-spacing:-.6px}.empty-library p{font-size:12px;line-height:1.9;color:var(--text-secondary);margin:14px 0 25px}@media(min-width:1680px){.app-main .workspace{padding-top:35px}.app-main .workspace-heading{margin-bottom:32px}}@media(max-width:1250px){:root{--sidebar-width: 180px}.app-shell .sidebar{padding-inline:12px}.app-shell .brand{font-size:23px;padding-inline:0}.app-shell .nav-item{padding-inline:10px;gap:9px;font-size:11px}.app-main .workspace{padding:25px 25px 20px}.app-main .review-workspace{--board-rail-width: 34px;--board-rail-gap: 8px;grid-template-columns:minmax(0,1.6fr) var(--board-rail-width) minmax(310px,1fr)}.app-main .workspace-heading h1{font-size:29px}}@media(max-width:1100px)and (min-width:821px){:root{--sidebar-width: 76px}.app-shell .sidebar{align-items:center;padding:25px 10px 20px}.app-shell .brand{padding:0}.app-shell .brand>span{display:none}.app-shell .sidebar-new-review>span{display:none}.app-shell .sidebar-section-label{font-size:0;height:35px;margin:0}.app-shell .main-navigation{width:100%}.app-shell .nav-item{font-size:0;justify-content:center;padding:13px 10px;min-height:45px}.app-shell .nav-count{position:absolute;top:4px;right:3px;font-size:8px;padding:1px 4px}.app-shell .nav-active-dot,.app-shell .local-status>div{display:none}.app-shell .sidebar-bottom{width:100%}.app-shell .creator-credit{margin-inline:0;text-align:center;font-size:7px}.app-shell .local-status{padding:17px 0 0;justify-content:center;margin-inline:0}}@media(max-width:820px){:root{--sidebar-width: 0px;--mobile-nav-height: calc(80px + env(safe-area-inset-bottom, 0px)) }.app-shell .sidebar{position:fixed;inset:auto 0 0;width:100%;height:var(--mobile-nav-height);padding:5px 10px calc(19px + env(safe-area-inset-bottom,0px));flex-direction:row;align-items:center;background:color-mix(in srgb,var(--sidebar) 96.1%,transparent);-webkit-backdrop-filter:blur(14px);backdrop-filter:blur(14px);border-right:0;border-top:1px solid var(--line-strong)}.app-shell .brand,.app-shell .sidebar-section-label,.app-shell .local-status,.app-shell .nav-active-dot{display:none}.app-shell .main-navigation{flex-direction:row;justify-content:space-around;flex:1;gap:4px;height:100%}.app-shell .sidebar-bottom{display:flex;margin-top:0;width:40%;height:100%}.app-shell .sidebar-new-review{flex-direction:column;gap:4px;width:20%;height:100%;min-height:48px;margin:0;padding:5px;border:0;background:transparent;color:var(--muted);font-size:9px}.app-shell .sidebar-new-review svg{width:19px;height:19px}.app-shell .nav-item{flex-direction:column;gap:4px;justify-content:center;padding:5px;font-size:9px;min-height:48px;text-align:center;height:100%;width:100%}.app-shell .sidebar-bottom>.nav-item{flex:1;min-width:0;font-size:9px}.app-shell .nav-label-full{display:none}.app-shell .nav-label-short{display:inline}.app-shell .creator-credit{position:absolute;bottom:calc(4px + env(safe-area-inset-bottom,0px));left:10px;right:10px;margin:0;text-align:center;font-size:7px}.app-shell .nav-item svg{width:19px;height:19px}.app-shell .nav-count{position:absolute;top:2px;right:calc(50% - 27px);font-size:7px;padding:1px 4px}.app-main{padding-bottom:calc(var(--mobile-nav-height) + 2px)}.app-main .workspace{padding:23px 22px 18px;max-width:700px}.app-main .workspace-heading{margin-bottom:20px;gap:10px;align-items:flex-start}.app-main .workspace-heading h1{font-size:28px;max-width:390px}.app-main .workspace-heading p{font-size:11px;line-height:1.7}.app-main .review-workspace{display:flex;flex-direction:column;gap:24px}.app-main .board-gap-controls{display:none}.focus-mode .board-gap-controls{display:flex}.focus-mode .board-gap-button:first-child{display:none}.app-main .board-column,.app-main .review-panel{width:100%}.app-main .board-flip-button{left:auto;right:0;bottom:-45px}.app-main .player-strip-bottom{padding-right:44px}.focus-mode .app-main .board-column{width:100%}.app-main .review-actions{--review-control-height: 47px;padding:18px 22px}.app-main .review-button{min-height:47px;font-size:13px}.app-main .review-toolbar{margin-top:15px;padding-top:14px}.app-main .review-nav-button{min-height:44px}.app-main .review-utilities{display:flex}.app-main .review-utility-button{width:34px;height:34px}.app-main .review-utility-mobile-only{display:inline-flex}.app-main .move-list{max-height:290px}.app-main .move-cell{font-size:13px;min-height:36px}.app-main .move-list-heading{padding:16px 21px 10px}.app-main .panel-title{min-height:51px}.app-main .panel-title>span{font-size:13px}.app-main .review-summary{padding-inline:18px}.app-main .selected-move{margin-inline:18px;padding:10px 12px}.app-main .analysis-slot{height:170px;margin:14px 18px}.app-main .engine-option{min-height:42px;grid-template-columns:54px minmax(0,1fr) 17px}.app-main .engine-score,.app-main .engine-option-line{font-size:11px}.app-main .board-caption{font-size:8px}.app-shell .working-indicator{bottom:calc(var(--mobile-nav-height) + 8px);left:12px;font-size:8px;padding:6px 9px}.app-main .mobile-review-launch{display:flex;width:100%;margin-bottom:19px;min-height:40px;font-size:12px}.app-main .mobile-review-launch>span{margin-left:auto;font-size:9px;font-weight:500;color:var(--on-accent)}.focus-mode .app-main{padding-bottom:15px}}@media(max-width:480px){.app-main .workspace{padding:21px 13px 18px}.app-main .workspace-heading h1{font-size:25px;line-height:1.45;max-width:260px}.app-main .workspace-heading p{font-size:10px;max-width:260px}.app-main .workspace-heading{gap:2px}.app-main .board-and-evaluation{grid-template-columns:15px minmax(0,1fr);gap:6px}.app-main .player-strip,.app-main .board-caption{margin-left:21px}.app-main .review-toolbar{margin-top:12px;padding-top:11px}.app-main .review-navigation{gap:4px}.app-main .review-nav-button{min-height:40px}.app-main .review-utilities{gap:4px}.app-main .review-utility-button{width:30px;height:30px}.app-main .evaluation-value{left:1px;font-size:8px}.app-main .player-name{font-size:11px}.app-main .player-avatar{width:31px;height:31px;font-size:11px}.app-main .captured-pieces .chess-piece{width:12px;margin-right:-5px}.app-main .board-caption>span:last-child{font-size:7px;gap:3px}.app-main .board-caption>span:last-child>svg{width:10px}.app-main .board-move-badge .move-badge{width:17px;height:17px;font-size:12px;border-radius:4px}.app-main .board-move-badge .move-badge svg{width:12px}.app-main .coordinate-rank{top:3px;left:3px}.app-main .coordinate-file{bottom:3px;right:3px}.app-main .coordinate{font-size:8px}.studio-modal{padding:12px 0;width:calc(100vw - 20px);border-radius:12px}.studio-modal .modal-scroll{padding:8px 16px}.studio-modal .modal-heading h2{font-size:19px}.studio-modal .modal-heading p{font-size:10px}.studio-modal .import-dropzone{padding:15px 12px;gap:10px}.studio-modal .file-size{display:none}.studio-modal .import-submit{flex-direction:column-reverse;align-items:stretch;gap:12px}.studio-modal .import-submit>span{justify-content:center;font-size:8px}.studio-modal .sample-game-grid{grid-template-columns:1fr;gap:8px}.studio-modal .sample-game{padding:13px;display:grid;grid-template-columns:22px 1fr auto;column-gap:10px;align-items:center}.studio-modal .sample-game>svg{grid-column:1;grid-row:1 / span 2;margin:0}.studio-modal .sample-tag{grid-column:2;margin-bottom:3px}.studio-modal .sample-game>strong{grid-column:2;font-size:12px}.studio-modal .sample-game>p{grid-column:2 / span 2;margin:6px 0 0;font-size:9px}.studio-modal .sample-link{grid-column:3;grid-row:1 / span 2;font-size:0}.studio-modal .sample-link>svg{width:16px;height:16px}.studio-modal .depth-option{gap:10px;padding:12px}.studio-modal .depth-option strong>span{display:none}.studio-modal .theme-option{padding:10px 6px;font-size:9px}.app-main .empty-library{padding:50px 17px}.app-main .empty-library h2{font-size:22px}}.classification-name,.move-cell[data-classification]{color:var(--move-label)}.move-cell-selected[data-classification],.move-cell-selected[data-classification]:hover{color:var(--move-label);background:color-mix(in srgb,var(--move-color) 12%,var(--surface));border-color:color-mix(in srgb,var(--move-label) 65%,var(--line));box-shadow:inset 2px 0 0 var(--move-label)}.selected-move[data-classification]{background:color-mix(in srgb,var(--move-color) 7%,var(--surface));border-color:color-mix(in srgb,var(--move-label) 60%,var(--line));box-shadow:inset 3px 0 0 var(--move-label)}.move-color-legend{display:flex;justify-content:center;flex-wrap:wrap;gap:10px 14px;margin-top:16px}.move-color-legend>span{display:inline-flex;align-items:center;gap:5px;color:var(--move-label);font-size:10px}:root{--board-paper: #f2f2f2;--board-charcoal: #252525;--board-ink: #202020;--board-border: #696969;--board-last-light: #b3d2e3;--board-last-dark: #5688ae;--board-selected-light: #8fc8e6;--board-selected-dark: #3f91c9;--board-hint: #273c4b66;--board-capture-hint: #273c4b99;--board-promotion-tile: #acacac;--board-promotion-hover: #d2d2d2}.engine-panel{display:flex;flex-direction:column;height:100%;overflow:hidden;background:var(--surface-recessed);border:1px solid var(--line);border-radius:8px}.engine-panel-heading{display:flex;align-items:center;justify-content:space-between;gap:10px;min-height:35px;padding:7px 10px;border-bottom:1px solid var(--line)}.engine-panel-heading>span{display:flex;align-items:center;gap:6px;color:var(--text-secondary);font-size:10px;font-weight:650}.engine-panel-heading small{color:var(--muted);font-size:7px;font-weight:700;letter-spacing:.09em}.engine-panel-heading small.engine-live{color:var(--accent)}.engine-panel-heading small.engine-live:before{content:"";display:inline-block;width:5px;height:5px;margin-right:4px;border-radius:50%;background:currentColor;box-shadow:0 0 8px currentColor}.engine-panel-actions{display:flex;align-items:center;gap:8px}.engine-depth{color:var(--muted);font-size:8px;font-variant-numeric:tabular-nums}.engine-back{display:inline-flex;align-items:center;gap:3px;padding:4px 5px;background:transparent;color:var(--muted);font-size:8px}.engine-back:hover{color:var(--text)}.engine-options{display:flex;flex-direction:column;margin:0;padding:0;list-style:none}.engine-options>li+li{border-top:1px solid color-mix(in srgb,var(--line) 70%,transparent)}.engine-option{display:grid;grid-template-columns:49px minmax(0,1fr) 15px;align-items:center;width:100%;min-height:36px;gap:8px;padding:5px 10px;background:transparent;color:var(--text-secondary);text-align:left}.engine-option:hover{background:var(--surface-hover)}.engine-score{display:inline-flex;align-items:center;justify-content:center;min-height:23px;border:1px solid var(--line-strong);border-radius:4px;background:var(--surface);color:var(--text);font-size:10px;font-variant-numeric:tabular-nums}.engine-option-line{display:flex;min-width:0;gap:7px;overflow:hidden;color:var(--text-secondary);font-size:10px;font-weight:600;white-space:nowrap}.engine-option-line>span{flex:0 0 auto}.engine-option-line>span:last-child{overflow:hidden;text-overflow:ellipsis}.engine-first-move{color:var(--accent);font-weight:750}.engine-option>svg{color:var(--muted)}.engine-empty{display:flex;align-items:center;flex:1 1 auto;width:100%;min-height:40px;gap:7px;padding:9px 10px;background:transparent;color:var(--muted);font-size:9px;text-align:left}.engine-empty:hover:not(:disabled){background:var(--surface-hover);color:var(--text-secondary)}.engine-empty>span{flex:1}.engine-panel-error .engine-empty{color:var(--danger-text)}.engine-terminal{display:flex;align-items:center;justify-content:center;flex:1 1 auto;gap:10px;padding:12px;color:var(--text-secondary);text-align:left}.engine-terminal>svg{flex-shrink:0;color:var(--accent)}.engine-terminal>div{display:flex;flex-direction:column;gap:3px}.engine-terminal strong{color:var(--text);font-size:13px;font-weight:700}.engine-terminal span{color:var(--muted);font-size:10px}.app-shell{min-height:100vh;background:radial-gradient(ellipse at 35% 0,color-mix(in srgb,var(--surface-raised) 14.5%,transparent),transparent 54%),var(--bg)}.sidebar{width:var(--sidebar-width);background:var(--sidebar);border-right:1px solid var(--line);position:fixed;inset:0 auto 0 0;z-index:30;display:flex;flex-direction:column;padding:30px 17px 20px}.brand{display:flex;gap:6px;align-items:center;padding:0;color:var(--text);font-family:Manrope Variable,sans-serif;font-weight:800;font-size:25px;letter-spacing:-1.5px}.brand img{width:33px;height:37px;flex-shrink:0;border-radius:10px}.brand-period{color:var(--accent)}.sidebar-section-label{font-size:9px;letter-spacing:.16em;font-weight:650;color:var(--subtle);margin:28px 13px 13px}.main-navigation{display:flex;flex-direction:column;gap:5px}.nav-item{position:relative;display:flex;align-items:center;gap:11px;padding:13px 12px;min-height:44px;background:transparent;border-radius:8px;color:var(--muted);width:100%;font-size:12px;font-weight:600;text-align:left;white-space:nowrap}.nav-item:hover:not(:disabled){background:var(--surface-hover);color:var(--text)}.nav-item.active{background:var(--accent-surface);color:var(--accent)}.nav-item.active svg{color:var(--accent)}.nav-active-dot{display:none;margin-left:auto;width:5px;height:5px;border-radius:50%;background:var(--accent)}.active .nav-active-dot{display:block}.nav-count{margin-left:auto;padding:2px 5px;border-radius:4px;background:var(--surface-raised);font-size:9px;color:var(--muted)}.sidebar-bottom{margin-top:auto}.sidebar-bottom>.nav-item{font-size:11px}.support-link>svg{color:#e85d68}.nav-label-short{display:none}.creator-credit{display:block;margin:12px 10px 0;color:var(--muted);font-size:8px;line-height:1.5}.local-status{margin:16px 7px 0;padding:16px 3px 0;border-top:1px solid var(--line);display:flex;align-items:flex-start;gap:9px}.local-status>.status-dot{margin-top:5px}.local-status strong{display:block;font-size:11px;color:var(--text-secondary);font-weight:550}.local-status div>span{display:flex;gap:4px;align-items:center;margin-top:5px;font-size:9px;color:var(--subtle)}.app-main{margin-left:var(--sidebar-width)}.new-game-button{display:inline-flex;align-items:center;gap:7px;padding:9px 13px;border:1px solid var(--line);border-radius:7px;background:var(--accent-surface);font-size:11px;font-weight:650;color:var(--accent);white-space:nowrap}.new-game-button:hover:not(:disabled){background:var(--accent-surface);border-color:var(--line-strong)}.sidebar-new-review{justify-content:center;flex-shrink:0;width:100%;min-height:42px;margin-top:24px}.workspace{max-width:1450px;margin:0 auto;padding:28px 35px 20px}.workspace-heading{display:flex;align-items:center;justify-content:space-between;gap:20px;margin-bottom:25px}.workspace-heading h1{font-family:Manrope Variable,sans-serif;font-size:clamp(25px,2.4vw,35px);line-height:1.4;font-weight:700;letter-spacing:-1.3px}.heading-dot{color:var(--accent)}.workspace-heading p{margin-top:7px;color:var(--muted);font-size:12px}.empty-studio{width:100%;max-width:500px;margin:clamp(24px,7vh,70px) auto;padding:24px;border:1px solid var(--line);border-radius:12px;background:var(--surface)}.empty-studio h1{font-family:Manrope Variable,sans-serif;font-size:23px;font-weight:750;letter-spacing:-.5px}.empty-studio>p{margin-top:9px;color:var(--text-secondary);font-size:12px;line-height:1.7}.empty-studio>.primary-button{margin-top:19px;min-height:42px;font-size:12px}.upload-placeholder{max-width:none;margin:0;padding:8px 18px 16px;border:0;border-radius:0;background:transparent}.upload-placeholder>.primary-button{width:100%}.empty-player-strip{color:var(--muted);font-size:11px}.upload-prompt-links{display:flex;align-items:center;justify-content:space-between;gap:8px;margin-top:8px;color:var(--muted);font-size:9px}.upload-prompt-links>span{display:flex;align-items:center;gap:5px}.upload-instruction{color:var(--text-secondary);font-size:11px;line-height:1.6}.upload-placeholder>.upload-privacy{display:flex;align-items:center;justify-content:center;gap:5px;margin-top:10px;color:var(--muted);font-size:9px}.quick-guide-toggle{display:inline-flex;align-items:center;gap:4px;min-height:32px;padding:5px 0;background:transparent;color:var(--accent);font-size:10px;white-space:nowrap}.quick-guide-toggle[aria-expanded=true] svg{transform:rotate(180deg)}.upload-guide{margin-top:8px;padding-top:12px;border-top:1px solid var(--line)}.upload-guide-steps{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:7px;margin:0;padding:0;list-style:none}.upload-guide-steps>li{display:flex;align-items:center;gap:5px;color:var(--text-secondary);font-size:10px;font-weight:600}.upload-guide-steps>li>span{display:inline-grid;place-items:center;flex-shrink:0;width:18px;height:18px;border-radius:50%;background:var(--accent-surface);color:var(--accent);font-size:9px}.upload-guide-tip{margin-top:10px;color:var(--muted);font-size:10px;line-height:1.7}.startup-loading{display:flex;align-items:center;justify-content:center;gap:9px;padding:70px 20px;color:var(--muted);font-size:12px}.startup-error-actions{display:flex;flex-wrap:wrap;gap:10px;margin-top:18px}.startup-error-actions>button{font-size:12px}.review-workspace{--board-rail-width: 38px;--board-rail-gap: 12px;display:grid;grid-template-columns:minmax(0,1.75fr) var(--board-rail-width) minmax(330px,1fr);align-items:start;column-gap:var(--board-rail-gap)}.board-column{min-width:0}.board-gap-controls{display:flex;flex-direction:column;gap:8px;align-items:center;padding-top:12px}.board-gap-button{display:inline-flex;align-items:center;justify-content:center;width:34px;height:34px;border:1px solid var(--line);border-radius:8px;background:var(--surface);color:var(--muted)}.board-gap-button:hover,.board-gap-button.selected,.board-gap-button.is-saved{border-color:var(--line-strong);background:var(--surface-hover);color:var(--accent)}.board-flip-button{position:absolute;bottom:0;left:calc(100% + var(--board-rail-gap) + (var(--board-rail-width) - 34px) / 2)}.player-strip{min-height:51px;display:flex;align-items:center;gap:9px;margin-left:31px;padding:4px 1px 10px}.player-strip-bottom{padding-top:11px;padding-bottom:4px}.player-avatar{width:35px;height:35px;display:grid;place-items:center;flex-shrink:0;border-radius:7px;font-family:Manrope Variable,sans-serif;font-weight:800;font-size:12px;position:relative;letter-spacing:-.5px}.player-avatar-w{background:linear-gradient(145deg,#eee,#bcbcbc);color:var(--board-charcoal)}.player-avatar-b{background:linear-gradient(145deg,#656565,#343434);color:var(--board-paper)}.avatar-crown{position:absolute;top:-4px;right:-4px;width:14px;height:14px;display:grid;place-items:center;background:#dedede;color:#424242;border:2px solid var(--bg);border-radius:4px}.player-details{min-width:0}.player-name{display:flex;gap:8px;align-items:center;font-size:12px;color:var(--text);font-weight:650;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.player-rating{color:var(--muted);font-size:10px;font-weight:450}.player-subtitle{display:flex;align-items:center;gap:5px;min-height:17px;font-size:9px;color:var(--muted)}.player-color-dot{display:inline-block;width:7px;height:7px;border-radius:50%;flex-shrink:0;border:1px solid var(--line-strong)}.player-color-w{background:var(--board-paper)}.player-color-b{background:#333}.turn-pill{font-size:8px;font-weight:600;letter-spacing:.06em;color:var(--subtle);margin-left:auto;border:1px solid var(--line);border-radius:4px;padding:4px 6px;white-space:nowrap}.turn-pill.your-turn{color:var(--text);border-color:var(--line-strong);background:var(--surface-raised);letter-spacing:0}.captured-pieces{display:flex;padding-left:4px}.captured-pieces .chess-piece{width:14px;height:17px;margin-right:-4px;filter:grayscale(1)}.material-advantage{font-size:9px;color:var(--text);margin-left:3px}.board-and-evaluation{position:relative;display:grid;grid-template-columns:20px minmax(0,1fr);gap:11px}.evaluation-bar{position:relative;background:var(--board-charcoal);border:1px solid var(--board-border);border-radius:4px;overflow:hidden}.evaluation-white{position:absolute;bottom:0;left:0;right:0;background:var(--board-paper);transition:height .65s cubic-bezier(.2,.7,.1,1)}.evaluation-value{position:absolute;z-index:1;top:10px;left:3px;color:var(--board-paper);font-size:10px;font-weight:750;writing-mode:vertical-rl;transform:rotate(180deg);letter-spacing:.03em}.evaluation-value-on-white{top:auto;bottom:10px;color:var(--board-ink)}.evaluation-flipped .evaluation-white{bottom:auto;top:0}.evaluation-flipped .evaluation-value{top:auto;bottom:10px}.evaluation-flipped .evaluation-value-on-white{bottom:auto;top:10px}.board-theme-sage{--square-light: #e4e9cf;--square-dark: #78976b;--square-text-light: #628158;--square-text-dark: #e0e7ca;--board-last-light: #d5e1a2;--board-last-dark: #9cb569;--board-selected-light: #c5d67d;--board-selected-dark: #87a653;--board-hint: #355a3266;--board-capture-hint: #355a3299;--board-promotion-tile: #a8b98a;--board-promotion-hover: #c6d3ac}.board-theme-walnut{--square-light: #f8e4c6;--square-dark: #bb8050;--square-text-light: #85491f;--square-text-dark: #fff0d4;--board-last-light: #e7d596;--board-last-dark: #cd8d48;--board-selected-light: #f6d470;--board-selected-dark: #d98c34;--board-hint: #74441f66;--board-capture-hint: #74441f99;--board-promotion-tile: #c2a27c;--board-promotion-hover: #e0c39c}.board-theme-slate{--square-light: #dce3e7;--square-dark: #708b9c;--square-text-light: #617b8d;--square-text-dark: #d8e4ec;--board-last-light: #b3d2e3;--board-last-dark: #5688ae;--board-selected-light: #8fc8e6;--board-selected-dark: #3f91c9;--board-hint: #273c4b66;--board-capture-hint: #273c4b99;--board-promotion-tile: #9eafbd;--board-promotion-hover: #c3d0da}.chess-board{position:relative;display:grid;grid-template-columns:repeat(8,minmax(0,1fr));grid-template-rows:repeat(8,minmax(0,1fr));width:100%;aspect-ratio:1;border-radius:5px;overflow:hidden;isolation:isolate;box-shadow:0 8px 28px color-mix(in srgb,var(--shadow) 32.2%,transparent),0 0 0 1px color-mix(in srgb,var(--shadow) 13.3%,transparent)}.board-square{position:relative;min-width:0;min-height:0;aspect-ratio:1;padding:0;display:grid;place-items:center;border-radius:0;transition:box-shadow .13s}.board-square:active:not(:disabled){transform:none}.square-light{background:var(--square-light);color:var(--square-text-light)}.square-dark{background:var(--square-dark);color:var(--square-text-dark)}.square-light.square-last{background:var(--board-last-light)}.square-dark.square-last{background:var(--board-last-dark)}.square-check{background-image:radial-gradient(ellipse,#e85e57df 5%,#d85a56b5 32%,transparent 72%)}.board-square:hover{box-shadow:inset 0 0 0 3px #fff5;z-index:2}.chess-board[data-readonly=true] .board-square:disabled{opacity:1;cursor:default}.chess-board[data-readonly=true] .board-square:hover{box-shadow:none}.board-square:focus-visible{outline-offset:-4px;z-index:5;outline:3px solid var(--board-ink)}.square-light.square-selected,.square-light.square-selected:hover{background:var(--board-selected-light)}.square-dark.square-selected,.square-dark.square-selected:hover{background:var(--board-selected-dark)}.chess-piece{display:block;width:90%;height:90%;object-fit:contain;pointer-events:none;-webkit-user-select:none;user-select:none;filter:grayscale(1) drop-shadow(0 2px 1.2px #00000040);position:relative;z-index:1}.chess-piece[draggable=true]{cursor:grab;pointer-events:auto}.chess-piece[draggable=true]:active{cursor:grabbing}.board-theme-walnut .board-square:before{content:"";position:absolute;top:0;right:0;bottom:0;left:0;z-index:0;pointer-events:none;background:url(/textures/wood-grain.svg) var(--grain-x) var(--grain-y) / 800% 800%;mix-blend-mode:multiply;opacity:.9}.board-theme-walnut .square-last:before,.board-theme-walnut .square-selected:before{opacity:.32}.coordinate{position:absolute;font-size:clamp(8px,.78vw,11px);font-weight:750;z-index:2;line-height:1;pointer-events:none}.coordinate-rank{top:5px;left:4px}.coordinate-file{bottom:4px;right:5px}.legal-dot{position:absolute;width:26%;height:26%;background:var(--board-hint);border-radius:50%;z-index:3;pointer-events:none}.legal-capture{position:absolute;top:4%;right:4%;bottom:4%;left:4%;border:5px solid var(--board-capture-hint);border-radius:50%;z-index:3;pointer-events:none}.board-move-badge{position:absolute;z-index:5;right:2px;top:2px;pointer-events:none}.board-move-badge .move-badge{width:23px;height:23px;box-shadow:0 0 0 2px var(--board-ink),0 2px 6px #0005}.board-arrows{position:absolute;top:0;right:0;bottom:0;left:0;z-index:4;pointer-events:none;width:100%;height:100%;opacity:.9}.board-arrows line{stroke:#e29c39;stroke-linecap:round}.board-arrows marker{fill:#e29c39}.promotion-backdrop{position:absolute;top:0;right:0;bottom:0;left:0;z-index:8;display:grid;place-items:center;background:color-mix(in srgb,var(--surface) 65.1%,transparent);-webkit-backdrop-filter:blur(3px);backdrop-filter:blur(3px)}.promotion-picker{background:var(--surface);border:1px solid var(--line-strong);padding:20px;border-radius:12px;text-align:center;box-shadow:0 15px 40px color-mix(in srgb,var(--shadow) 33.3%,transparent)}.promotion-picker p{color:var(--text);font-size:15px;font-weight:700;margin-bottom:13px}.promotion-picker>div{display:flex;gap:7px}.promotion-picker>div>button{width:51px;height:57px;border-radius:7px;background:var(--board-promotion-tile)}.promotion-picker>div>button:hover{background:var(--board-promotion-hover)}.promotion-picker .text-button{margin-top:10px}.analysis-slot{height:146px;margin:12px 16px}.evaluation-chart{display:flex;flex-direction:column;height:100%;margin:0;padding:10px 12px 8px;background:var(--surface-recessed);border:1px solid var(--line);border-radius:8px}.chart-heading{display:flex;align-items:center;justify-content:space-between;font-size:10px;gap:7px}.chart-heading>span{display:flex;align-items:center;gap:7px;color:var(--text-secondary)}.chart-actions{display:flex;align-items:center;gap:6px}.chart-back{display:inline-flex;align-items:center;gap:5px;border-radius:5px;font-size:8px;font-weight:650;white-space:nowrap}.chart-back{padding:4px 3px;background:transparent;color:var(--muted)}.chart-back:hover{color:var(--text)}.chart-canvas{position:relative;min-height:0;flex:1 1 auto;margin-top:7px}.chart-canvas svg{width:100%;height:100%;display:block}.chart-zero{stroke:color-mix(in srgb,var(--line-strong) 40%,transparent);stroke-dasharray:3 6;stroke-width:.7}.chart-line{fill:none;stroke:var(--accent);stroke-width:1.8;vector-effect:non-scaling-stroke;stroke-linejoin:round}.chart-selection{stroke:color-mix(in srgb,var(--accent) 45.9%,transparent);stroke-width:1;vector-effect:non-scaling-stroke;stroke-dasharray:2 3}.chart-point{stroke:var(--surface);stroke-width:1.5}.chart-empty{position:absolute;top:0;right:0;bottom:0;left:0;display:flex;align-items:center;justify-content:center;color:var(--subtle);font-size:10px}.chart-hit{position:absolute;top:0;bottom:0;padding:0;background:transparent;z-index:2}.chart-hit:hover{background:color-mix(in srgb,var(--surface-hover) 5.5%,transparent)}.chart-labels{display:flex;justify-content:space-between;color:var(--subtle);font-size:7px;letter-spacing:.09em;font-weight:600;padding:0 0 1px}.chart-labels>span:nth-child(2){font-size:8px;letter-spacing:0;font-weight:450}.board-caption{display:flex;justify-content:space-between;align-items:center;margin:12px 0 0 31px;font-size:8px;color:var(--muted)}.board-caption>span{display:flex;gap:5px;align-items:center}.caption-separator{margin:0 5px;color:var(--subtle)}.review-panel{overflow:hidden;background:var(--surface);border:1px solid var(--line);border-radius:11px;box-shadow:0 8px 35px color-mix(in srgb,var(--shadow) 14.5%,transparent)}.panel-title{display:flex;align-items:center;justify-content:space-between;min-height:48px;padding:9px 18px;border-bottom:1px solid var(--line)}.panel-title>span{display:flex;align-items:center;gap:8px;font-size:12px;font-weight:650;color:var(--text)}.panel-title>span>svg{color:var(--accent);width:16px}.review-actions{--review-control-height: 44px;padding:15px 18px 16px;border-top:1px solid var(--line)}.review-control-row{display:flex;align-items:flex-end;gap:8px}.review-button{flex:1;min-width:0;min-height:44px;padding:11px 12px;font-size:12px;gap:8px;white-space:nowrap}.review-toolbar{margin-top:13px;padding-top:12px;border-top:1px solid var(--line)}.review-navigation{display:grid;grid-template-columns:repeat(5,minmax(0,1fr));gap:6px}.review-nav-button{display:inline-flex;align-items:center;justify-content:center;min-height:39px;border:1px solid var(--line);border-radius:7px;background:var(--surface-recessed);color:var(--text-secondary)}.review-nav-button:hover:not(:disabled){border-color:var(--line-strong);background:var(--surface-hover);color:var(--text)}.review-nav-button:disabled{opacity:.3}.review-play-button{background:var(--surface-raised);color:var(--text)}.review-play-button.playing{color:var(--accent)}.review-utilities{display:none;align-items:center;justify-content:flex-end;gap:5px;margin-top:9px;min-width:0}.self-analysis-button{display:inline-flex;align-items:center;justify-content:center;flex:0 0 auto;gap:6px;min-width:44px;height:var(--review-control-height);padding:0 10px;border:1px solid var(--line);border-radius:6px;background:var(--surface-recessed);color:var(--text-secondary);font-size:10px;font-weight:650;white-space:nowrap}.self-analysis-button:hover:not(:disabled),.self-analysis-button.is-active{border-color:var(--line-strong);background:var(--accent-surface);color:var(--accent)}.review-utility-button{display:inline-flex;align-items:center;justify-content:center;flex:0 0 auto;width:30px;height:30px;border:1px solid var(--line);border-radius:6px;background:var(--surface-recessed);color:var(--muted)}.review-utility-button:hover:not(:disabled),.review-utility-button.selected,.review-utility-button.is-saved{border-color:var(--line-strong);background:var(--surface-hover);color:var(--accent)}.review-utility-mobile-only{display:none}.review-position{display:block;margin-top:6px;color:var(--subtle);font-size:8px;font-variant-numeric:tabular-nums;text-align:right}.move-list-section{border-top:1px solid var(--line);margin-top:12px}.move-list-heading{display:flex;align-items:center;justify-content:space-between;padding:13px 18px 9px;gap:7px}.move-list-title{min-width:0}.move-list-heading h3{font-size:11px;font-weight:650;display:flex;align-items:center;gap:7px}.move-list-heading h3>span{background:var(--surface-raised);color:var(--muted);font-size:8px;font-weight:500;padding:2px 5px;border-radius:4px}.move-list-opening{display:flex;align-items:center;gap:5px;margin-top:5px;color:var(--muted);font-size:10px;line-height:1.4}.move-list-opening>svg{flex-shrink:0}.move-list-opening>span{min-width:0;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.filter-button{display:flex;flex-shrink:0;gap:5px;align-items:center;color:var(--muted);font-size:9px;background:transparent;padding:4px;border-radius:4px}.filter-button:hover:not(:disabled),.filter-button.selected{color:var(--text);background:var(--surface-hover)}.filter-button:disabled{opacity:.6}.move-list{max-height:225px;overflow:auto;padding:0 9px 8px 13px;scroll-behavior:smooth;scrollbar-gutter:stable}.move-row{display:grid;grid-template-columns:26px minmax(0,1fr) minmax(0,1fr);gap:5px;align-items:center;padding:2px 0;border-radius:5px}.move-row:nth-child(2n){background:color-mix(in srgb,var(--surface-raised) 30.2%,transparent)}.move-number{color:var(--muted);font-size:10px;text-align:center;font-variant-numeric:tabular-nums}.move-cell{display:flex;align-items:center;justify-content:space-between;gap:4px;padding:7px 11px;min-height:32px;border-radius:5px;background:transparent;text-align:left;color:var(--text);font-size:12px;font-weight:550;border:1px solid transparent}.move-cell:hover{background:var(--surface-hover)}.move-cell-selected{background:var(--surface-hover);border-color:var(--line-strong);color:var(--text)}.move-cell-selected:hover{background:var(--surface-hover)}.move-badge{--badge-color: #b7bdcf;display:inline-flex;align-items:center;justify-content:center;flex-shrink:0;width:31px;height:31px;background:var(--badge-color);color:#14202a;border:1px solid color-mix(in srgb,var(--badge-color) 50%,#14202a);border-radius:8px;font-size:18px;font-weight:850;line-height:1;font-family:Manrope Variable,sans-serif;letter-spacing:-1px}.move-badge--small{width:17px;height:17px;border-radius:4px;font-size:11px;letter-spacing:-.8px}.game-result{display:flex;justify-content:center;align-items:center;gap:9px;padding:10px;border-top:1px solid var(--line);color:var(--muted);font-size:9px}.game-result strong{border-radius:4px;padding:2px 6px;background:var(--surface-raised);color:var(--text-secondary);font-size:10px;font-weight:650}.empty-moves{padding:24px 10px;color:var(--muted);font-size:11px;text-align:center}.analysis-progress{padding:18px 17px 13px;background:radial-gradient(ellipse at top right,color-mix(in srgb,var(--accent) 18%,transparent),transparent 70%);border-bottom:1px solid var(--line)}.progress-title{display:flex;align-items:center;gap:9px}.engine-spinner{display:grid;place-items:center;width:34px;height:34px;border-radius:9px;border:1px solid var(--line-strong);background:var(--accent-surface);color:var(--accent);flex-shrink:0;box-shadow:0 0 20px color-mix(in srgb,var(--shadow) 12.5%,transparent)}.progress-title>div{flex:1;min-width:0}.progress-title strong{font-size:11px;display:block;font-weight:650;color:var(--text)}.progress-title>div>span{font-size:9px;color:var(--text-secondary);line-height:1.6;display:block;margin-top:4px;overflow-wrap:anywhere}.progress-percent{font-variant-numeric:tabular-nums;color:var(--accent);font-size:13px;font-weight:700}.progress-track{height:4px;border-radius:4px;background:var(--surface-raised);margin:15px 0 9px;overflow:hidden}.progress-track>span{display:block;border-radius:4px;height:100%;background:linear-gradient(90deg,var(--accent),var(--accent));transition:width .4s}.progress-indeterminate>span{width:35%!important;animation:slide-progress 1.7s ease-in-out infinite}@keyframes slide-progress{0%{transform:translate(-110%)}to{transform:translate(400%)}}.progress-caption{display:flex;justify-content:space-between;color:var(--muted);font-size:8px}.progress-caption button{display:flex;align-items:center;gap:4px;background:none;color:var(--text-secondary);padding:0 2px;font-size:9px}.review-summary{padding:5px 18px 8px}.summary-heading{display:flex;justify-content:space-between;align-items:center;gap:8px}.summary-heading h2{font-family:Manrope Variable,sans-serif;font-size:17px;font-weight:750;letter-spacing:-.4px}.highlights-table{width:100%;table-layout:fixed;border-collapse:collapse;margin-top:13px;text-align:center}.highlights-table th,.highlights-table td{padding:8px 5px}.highlights-table th:first-child{width:40%;text-align:left}.highlights-table thead th{font-size:10px;font-weight:550;color:var(--muted);vertical-align:bottom}.highlights-player>span{display:block;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;color:var(--text);font-size:12px;font-weight:700}.highlights-player>small{display:flex;align-items:center;justify-content:center;gap:4px;margin-top:4px;font-size:9px;font-weight:450}.highlights-table tbody th{font-size:11px;font-weight:550;color:var(--text-secondary)}.highlights-accuracy th,.highlights-accuracy td{padding-block:12px;border-bottom:1px solid var(--line-strong)}.accuracy-value{color:var(--text);font-family:Manrope Variable,sans-serif;font-size:28px;letter-spacing:-.8px;font-variant-numeric:tabular-nums}.accuracy-value>small{margin-left:1px;font-size:11px;letter-spacing:0;color:var(--muted)}.highlights-table tr[data-classification]>*{border-bottom:1px solid var(--line)}.highlights-classification{display:flex;align-items:center;gap:7px}.highlights-count{color:var(--move-label);font-size:16px;font-weight:750;font-variant-numeric:tabular-nums}.highlights-count-empty{color:var(--subtle);font-size:14px;font-variant-numeric:tabular-nums}.highlights-actions{padding:6px 18px 16px}.start-review-button{width:100%;min-height:46px;gap:9px;font-size:13px}.analyze-again-button{display:flex;align-items:center;justify-content:center;gap:6px;margin:9px auto 0;font-size:10px}.walkthrough-header{display:flex;align-items:center;justify-content:space-between;gap:8px;margin:12px 13px 0}.walkthrough-header .text-button{display:flex;align-items:center;gap:5px;font-size:10px}.walkthrough-header>span{font-size:9px;color:var(--muted)}.walkthrough-position{display:flex;align-items:center;justify-content:space-between;gap:8px;min-height:55px;margin:9px 13px 0;padding:12px;border:1px solid var(--line);border-radius:8px;background:var(--surface-recessed);font-size:11px}.walkthrough-position .text-button{display:flex;align-items:center;gap:4px;font-size:10px}.walkthrough-actions{border-top:0;padding-top:12px}.walkthrough-actions .review-position{font-size:10px}.walkthrough-actions .review-nav-button{min-height:44px}.walkthrough-actions .review-nav-button:nth-child(4):not(:disabled){background:var(--accent);color:var(--on-accent);border-color:var(--accent)}.walkthrough-tools{display:flex;align-items:center;gap:8px;margin-top:12px}.finish-review-button{flex:1;min-height:44px;padding-inline:10px;font-size:11px;gap:6px}.review-panel-walkthrough{display:flex;flex-direction:column}.review-panel-walkthrough>:not(.walkthrough-moves){flex-shrink:0}.walkthrough-moves{display:flex;flex:1;flex-direction:column;min-height:0;margin:0 13px 16px;border:1px solid var(--line);border-radius:8px;overflow:hidden}.walkthrough-move-body{display:flex;flex:1;min-height:0}.walkthrough-moves .move-list-section{margin-top:0;border-top:0}.walkthrough-move-body .move-list-section{display:flex;flex:1;flex-direction:column;min-width:0;min-height:0}.walkthrough-move-body .move-list-heading,.walkthrough-move-body .game-result{flex-shrink:0}@media(min-width:821px){.review-panel-walkthrough{align-self:stretch;contain:size;min-height:640px}.review-panel-walkthrough .walkthrough-moves .move-list{flex:1;min-height:0;max-height:none}}@media(max-width:820px){.review-panel-walkthrough:not(.has-self-analysis) .walkthrough-moves .move-list{max-height:clamp(290px,55dvh,480px)}}.review-panel-analyzing .analysis-progress{padding:22px 18px;border-bottom:0}.analysis-next-step{margin-top:22px;font-size:11px;line-height:1.7;color:var(--muted)}.analysis-paused{display:flex;flex-direction:column;gap:6px;padding:18px;font-size:12px}.analysis-paused>span{font-size:10px;line-height:1.7;color:var(--muted)}.selected-move{margin:9px 13px 0;border:1px solid var(--line-strong);border-radius:8px;background:var(--surface-raised);padding:10px 12px}.selected-move-heading{display:flex;align-items:center;justify-content:space-between;gap:8px}.selected-move-heading>div{display:flex;align-items:center;gap:8px}.selected-move-heading>div>span:last-child{display:flex;flex-direction:column;gap:2px}.selected-move-heading strong{font-family:Manrope Variable,sans-serif;font-weight:700;font-size:19px;letter-spacing:-.5px}.selected-move-heading>div>span>span{font-size:10px;font-weight:550}.evaluation-chip{font-size:10px;padding:5px 7px;border:1px solid var(--line-strong);border-radius:5px;background:color-mix(in srgb,var(--surface-recessed) 63.1%,transparent);color:var(--text);font-weight:650;white-space:nowrap}.focus-mode .sidebar{display:none}.focus-mode .app-main{margin-left:0}.focus-mode .review-workspace{display:block;position:relative}.focus-mode .board-column{max-width:750px;width:calc(100% - var(--board-rail-width) - var(--board-rail-gap));margin:0 auto}.focus-mode .review-panel{display:none}.focus-mode .board-gap-controls{position:fixed;top:16px;right:16px;z-index:40;padding-top:0}.focus-mode .workspace{max-width:1080px}.error-banner{display:flex;justify-content:space-between;gap:15px;align-items:center;border:1px solid var(--danger-border);background:color-mix(in srgb,var(--danger-surface) 60%,transparent);border-radius:8px;padding:15px 18px;margin-bottom:20px}.error-banner>div{display:flex;flex-direction:column;gap:5px}.error-banner strong{font-size:12px;color:var(--danger-text)}.error-banner span{font-size:11px;color:var(--danger-text);line-height:1.6}.working-indicator{position:fixed;left:calc(var(--sidebar-width) + 18px);bottom:12px;display:flex;align-items:center;gap:7px;color:var(--text);background:color-mix(in srgb,var(--surface-raised) 93.3%,transparent);border:1px solid var(--line-strong);box-shadow:0 4px 15px color-mix(in srgb,var(--shadow) 20%,transparent);border-radius:20px;padding:7px 11px;font-size:9px;z-index:50;-webkit-backdrop-filter:blur(8px);backdrop-filter:blur(8px)}.focus-mode .working-indicator{left:18px}.mobile-review-launch{display:none}