@layer theme{:root,:host{--font-sans:ui-sans-serif, system-ui, sans-serif, "Apple Color Emoji", "Segoe UI Emoji", "Segoe UI Symbol", "Noto Color Emoji";--font-mono:ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, "Liberation Mono", "Courier New", monospace;--spacing:.25rem;--default-font-family:var(--font-sans);--default-mono-font-family:var(--font-mono)}}@layer base{*,:after,:before,::backdrop{box-sizing:border-box;border:0 solid;margin:0;padding:0}::file-selector-button{box-sizing:border-box;border:0 solid;margin:0;padding:0}html,:host{-webkit-text-size-adjust:100%;tab-size:4;line-height:1.5;font-family:var(--default-font-family,ui-sans-serif, system-ui, sans-serif, "Apple Color Emoji", "Segoe UI Emoji", "Segoe UI Symbol", "Noto Color 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components;@layer utilities{.visible{visibility:visible}.absolute{position:absolute}.fixed{position:fixed}.static{position:static}.start{inset-inline-start:var(--spacing)}.block{display:block}.contents{display:contents}.hidden{display:none}.table{display:table}.resize{resize:both}}:root{--bg:#0b0e13;--panel:#131821;--line:#272f3c;--text:#f1f4f8;--muted:#8f9bad;--accent:#c9ff55;--red:#ff6b6b;--yellow:#ffc95b;--purple:#b18cff}*{box-sizing:border-box}html{background:var(--bg)}body{background:radial-gradient(circle at 55% -30%, #697f9f29, transparent 42%), var(--bg);color:var(--text);margin:0;font-family:Inter,ui-sans-serif,-apple-system,BlinkMacSystemFont,Segoe UI,sans-serif}button,textarea{font:inherit}button{color:inherit}.app-shell{min-height:100vh;padding-bottom:28px}.topbar{-webkit-backdrop-filter:blur(18px);backdrop-filter:blur(18px);z-index:20;background:#0b0e13db;border-bottom:1px solid #ffffff12;justify-content:space-between;align-items:center;height:68px;padding:0 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strong{margin-top:1px;font-size:11px}.board-verdict.mistake>span,.board-verdict.blunder>span{background:var(--red)}.board-verdict.blunder>span{font-size:25px;line-height:1}.board-verdict.brilliant>span{background:var(--purple)}.board-verdict.excellent>span,.board-verdict.best>span{background:var(--accent)}.board-suggestion{z-index:14;color:#edf4e4;-webkit-backdrop-filter:blur(12px);backdrop-filter:blur(12px);background:linear-gradient(135deg,#121b16f7,#0e131af7);border:1px solid #c9ff557a;border-radius:14px;width:min(390px,100% - 24px);padding:14px 50px 13px 15px;animation:.2s ease-out verdict-in;position:absolute;bottom:12px;left:12px;box-shadow:0 18px 46px #00000085}.board-suggestion small,.board-suggestion strong,.board-suggestion span{display:block}.board-suggestion small{color:var(--accent);letter-spacing:.11em;font-size:9px;font-weight:900}.board-suggestion strong{color:#f4f8ef;margin-top:5px;font-size:20px;line-height:1.1}.board-suggestion p{color:#c4cec0;margin:7px 0 0;font-size:12px;line-height:1.42}.board-suggestion>span{color:#899889;text-overflow:ellipsis;white-space:nowrap;margin-top:7px;font-size:9px;overflow:hidden}.board-suggestion-close{color:#dfe7ee;cursor:pointer;background:#202833;border:1px solid #ffffff2e;border-radius:10px;place-items:center;width:36px;height:36px;display:grid;position:absolute;top:9px;right:9px}.board-suggestion-close:hover{border-color:var(--accent);color:var(--accent)}.opening-note{background:linear-gradient(135deg,#1e172bf7,#0e131af7);border-color:#b18cff99}.opening-note small{color:#d9c8ff}.board-suggestion-next{color:#dcffa0;cursor:pointer;background:#c9ff5517;border:1px solid #c9ff5561;border-radius:8px;align-items:center;gap:5px;min-height:34px;margin-top:10px;padding:0 10px;font-size:9px;font-weight:850;display:inline-flex}.square-verdict{z-index:9;background:var(--yellow);color:#17100d;pointer-events:none;border:2px solid 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0;font-size:8px;font-weight:900;position:absolute;left:50%;transform:translate(-50%)}.eval-number.on-white{color:#111820;bottom:5px}.eval-number.on-black{color:#fff;top:5px}.training-banner{background:#c9ff5512;border:1px solid #c9ff5540;border-radius:12px;align-items:center;gap:10px;min-height:62px;margin-bottom:10px;padding:10px 12px;display:flex}.training-banner.correct{background:#68dc941a;border-color:#68dc9480}.training-banner.wrong{background:#ff6b6b14;border-color:#ff6b6b66}.training-icon{color:var(--accent)}.training-banner div:nth-child(2){flex:1}.training-banner strong,.training-banner span{display:block}.training-banner strong{font-size:12px}.training-banner span{color:var(--muted);margin-top:3px;font-size:10px}.training-banner button{cursor:pointer;background:0 0;border:1px solid #ffffff26;border-radius:7px;padding:6px 9px;font-size:10px}.navigation-bar{border:1px solid var(--line);background:#131821e0;border-radius:12px;grid-template-columns:44px 44px 1fr 44px 44px;align-items:stretch;min-height:52px;margin-top:10px;display:grid;position:relative;overflow:hidden}.navigation-bar>button{border:0;border-right:1px solid var(--line);color:#9ca8b8;cursor:pointer;background:0 0;place-items:center;display:grid}.navigation-bar>button:nth-last-child(-n+2){border-right:0;border-left:1px solid var(--line)}.navigation-bar>button:hover{color:#fff;background:#1b222d}.move-position{flex-direction:column;justify-content:center;align-items:center;min-width:0;display:flex}.move-position strong{font-size:12px}.move-position span{color:var(--muted);margin-top:2px;font-size:9px}.navigation-bar .reset-branch{border:1px solid var(--line);background:#1e2631;border-radius:8px;width:34px;height:34px;position:absolute;top:8px;right:94px}.analysis-panel{flex-direction:column;height:min(750px,100vh - 154px);min-height:610px;display:flex}.moves-header{border-bottom:1px solid var(--line);justify-content:space-between;align-items:center;min-height:49px;padding:0 15px;display:flex}.moves-header span,.moves-header small{display:block}.moves-header span{font-size:12px;font-weight:750}.moves-header small{color:var(--muted);margin-top:2px;font-size:9px}.engine-pill{color:#a4afbd;white-space:nowrap;border:1px solid var(--line);letter-spacing:.08em;border-radius:12px;flex:none;align-items:center;padding:6px 8px;line-height:1;display:inline-flex;font-size:8px!important}.engine-pill i{background:var(--accent);border-radius:50%;flex:0 0 6px;width:6px;height:6px;margin-right:5px;display:inline-block}.moves-list{border-bottom:1px solid var(--line);scrollbar-width:thin;scrollbar-color:#3b4655 transparent;min-height:205px;max-height:42%;padding:8px 10px;overflow-y:auto}.move-row{grid-template-columns:28px 1fr 1fr;align-items:center;gap:3px;min-height:31px;display:grid}.move-num{color:#596475;text-align:right;padding-right:5px;font-size:10px}.move-row button{text-align:left;cursor:pointer;background:0 0;border:0;border-radius:6px;justify-content:space-between;align-items:center;height:28px;padding:0 7px;font-size:11px;font-weight:650;display:flex}.move-row button:hover{background:#202733}.move-row button.selected{background:var(--accent);color:#11170a}.move-mark{color:#10140b;border-radius:4px;padding:2px 3px;font-size:8px;font-style:normal;font-weight:950}.move-mark.brilliant{background:var(--purple)}.move-mark.excellent{background:var(--accent)}.move-mark.inaccuracy{background:var(--yellow)}.move-mark.mistake,.move-mark.blunder{background:var(--red)}.branch-row{border-left:2px solid var(--accent);color:#cdd6e1;background:#c9ff550f;border-radius:0 6px 6px 0;margin:7px 2px;padding:8px 9px;font-size:10px}.branch-row span{color:var(--accent);text-transform:uppercase;letter-spacing:.1em;margin-right:7px;font-size:8px}.explanation-card{flex:1;padding:16px;overflow-y:auto}.explanation-top{align-items:flex-start;gap:11px;display:flex}.quality-badge{color:#10130d;border-radius:10px;flex:0 0 38px;place-items:center;width:38px;height:38px;font-weight:950;display:grid}.quality-badge.brilliant{background:var(--purple)}.quality-badge.excellent{background:var(--accent)}.quality-badge.inaccuracy{background:var(--yellow)}.quality-badge.mistake,.quality-badge.blunder{background:var(--red)}.explanation-top small{color:var(--muted);text-transform:uppercase;letter-spacing:.08em;font-size:9px}.explanation-top h2{letter-spacing:-.015em;margin:3px 0 0;font-size:15px;line-height:1.25}.explanation-card>p{color:#adb7c5;margin:14px 0;font-size:11px;line-height:1.65}.best-line{background:#c9ff550f;border:1px solid #c9ff5538;border-radius:10px;justify-content:space-between;align-items:center;gap:10px;padding:10px 11px;display:flex}.best-line span,.best-line strong{display:block}.best-line span{color:var(--muted);text-transform:uppercase;letter-spacing:.1em;font-size:8px}.best-line strong{color:var(--accent);margin-top:2px;font-size:16px}.best-line button{color:var(--accent);cursor:pointer;background:0 0;border:0;font-size:9px}.best-actions{flex-direction:column;align-items:flex-end;gap:6px;display:flex}.best-actions button:last-child{border:1px solid #c9ff553d;border-radius:6px;padding:4px 7px}.variation{border-bottom:1px solid #ffffff0f;padding:11px 2px}.variation span{color:var(--muted);text-transform:uppercase;letter-spacing:.1em;margin-bottom:5px;font-size:8px;display:block}.variation code{color:#d8dee7;white-space:normal;font-size:10px;line-height:1.6}.motif{color:#97a3b2;align-items:center;gap:6px;margin-top:11px;font-size:9px;display:flex}.empty-explanation{text-align:center;color:#647083;padding:28px 12px}.empty-explanation h2{color:#c6ced8;margin:10px 0 6px;font-size:14px}.empty-explanation p{margin:0;font-size:10px;line-height:1.55}.graph-panel{grid-template-columns:190px 1fr;align-items:center;width:min(1540px,100% - 32px);min-height:148px;margin:14px auto 0;padding:12px 18px;display:grid}.graph-heading 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