@font-face{font-family:Public Sans;font-style:normal;font-display:swap;font-weight:400;src:url(/chat/assets/public-sans-vietnamese-400-normal-TxZB8OSn.woff2)format("woff2"),url(/chat/assets/public-sans-vietnamese-400-normal-BO1meqcx.woff)format("woff");unicode-range:U+102-103,U+110-111,U+128-129,U+168-169,U+1A0-1A1,U+1AF-1B0,U+300-301,U+303-304,U+308-309,U+323,U+329,U+1EA0-1EF9,U+20AB}@font-face{font-family:Public Sans;font-style:normal;font-display:swap;font-weight:400;src:url(/chat/assets/public-sans-latin-ext-400-normal-mk90oQqJ.woff2)format("woff2"),url(/chat/assets/public-sans-latin-ext-400-normal-B02wwOdZ.woff)format("woff");unicode-range:U+100-2BA,U+2BD-2C5,U+2C7-2CC,U+2CE-2D7,U+2DD-2FF,U+304,U+308,U+329,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:Public Sans;font-style:normal;font-display:swap;font-weight:400;src:url(/chat/assets/public-sans-latin-400-normal-8Rpg0ruU.woff2)format("woff2"),url(/chat/assets/public-sans-latin-400-normal-SBbinRkI.woff)format("woff");unicode-range:U+??,U+131,U+152-153,U+2BB-2BC,U+2C6,U+2DA,U+2DC,U+304,U+308,U+329,U+2000-206F,U+20AC,U+2122,U+2191,U+2193,U+2212,U+2215,U+FEFF,U+FFFD}@font-face{font-family:Public Sans;font-style:normal;font-display:swap;font-weight:500;src:url(/chat/assets/public-sans-vietnamese-500-normal-DjztbcKe.woff2)format("woff2"),url(/chat/assets/public-sans-vietnamese-500-normal-CXYe29CY.woff)format("woff");unicode-range:U+102-103,U+110-111,U+128-129,U+168-169,U+1A0-1A1,U+1AF-1B0,U+300-301,U+303-304,U+308-309,U+323,U+329,U+1EA0-1EF9,U+20AB}@font-face{font-family:Public Sans;font-style:normal;font-display:swap;font-weight:500;src:url(/chat/assets/public-sans-latin-ext-500-normal-DC-z7ASZ.woff2)format("woff2"),url(/chat/assets/public-sans-latin-ext-500-normal-BHCCp-na.woff)format("woff");unicode-range:U+100-2BA,U+2BD-2C5,U+2C7-2CC,U+2CE-2D7,U+2DD-2FF,U+304,U+308,U+329,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:Public Sans;font-style:normal;font-display:swap;font-weight:500;src:url(/chat/assets/public-sans-latin-500-normal-NlrCPXnF.woff2)format("woff2"),url(/chat/assets/public-sans-latin-500-normal-vCxiVFAq.woff)format("woff");unicode-range:U+??,U+131,U+152-153,U+2BB-2BC,U+2C6,U+2DA,U+2DC,U+304,U+308,U+329,U+2000-206F,U+20AC,U+2122,U+2191,U+2193,U+2212,U+2215,U+FEFF,U+FFFD}@font-face{font-family:Public Sans;font-style:normal;font-display:swap;font-weight:600;src:url(/chat/assets/public-sans-vietnamese-600-normal-P4BtCUdw.woff2)format("woff2"),url(/chat/assets/public-sans-vietnamese-600-normal-CcnAzmUX.woff)format("woff");unicode-range:U+102-103,U+110-111,U+128-129,U+168-169,U+1A0-1A1,U+1AF-1B0,U+300-301,U+303-304,U+308-309,U+323,U+329,U+1EA0-1EF9,U+20AB}@font-face{font-family:Public Sans;font-style:normal;font-display:swap;font-weight:600;src:url(/chat/assets/public-sans-latin-ext-600-normal-DchWdWJ_.woff2)format("woff2"),url(/chat/assets/public-sans-latin-ext-600-normal-DfkbVac2.woff)format("woff");unicode-range:U+100-2BA,U+2BD-2C5,U+2C7-2CC,U+2CE-2D7,U+2DD-2FF,U+304,U+308,U+329,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:Public Sans;font-style:normal;font-display:swap;font-weight:600;src:url(/chat/assets/public-sans-latin-600-normal-Fru-LXNs.woff2)format("woff2"),url(/chat/assets/public-sans-latin-600-normal-BR59oU-I.woff)format("woff");unicode-range:U+??,U+131,U+152-153,U+2BB-2BC,U+2C6,U+2DA,U+2DC,U+304,U+308,U+329,U+2000-206F,U+20AC,U+2122,U+2191,U+2193,U+2212,U+2215,U+FEFF,U+FFFD}@font-face{font-family:Public Sans;font-style:normal;font-display:swap;font-weight:700;src:url(/chat/assets/public-sans-vietnamese-700-normal-D97ShjGS.woff2)format("woff2"),url(/chat/assets/public-sans-vietnamese-700-normal-Dq5VrXjD.woff)format("woff");unicode-range:U+102-103,U+110-111,U+128-129,U+168-169,U+1A0-1A1,U+1AF-1B0,U+300-301,U+303-304,U+308-309,U+323,U+329,U+1EA0-1EF9,U+20AB}@font-face{font-family:Public Sans;font-style:normal;font-display:swap;font-weight:700;src:url(/chat/assets/public-sans-latin-ext-700-normal-CgolUQuG.woff2)format("woff2"),url(/chat/assets/public-sans-latin-ext-700-normal-jWHjnMgZ.woff)format("woff");unicode-range:U+100-2BA,U+2BD-2C5,U+2C7-2CC,U+2CE-2D7,U+2DD-2FF,U+304,U+308,U+329,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:Public Sans;font-style:normal;font-display:swap;font-weight:700;src:url(/chat/assets/public-sans-latin-700-normal-BqJmxWdE.woff2)format("woff2"),url(/chat/assets/public-sans-latin-700-normal-Dm-oTPSL.woff)format("woff");unicode-range:U+??,U+131,U+152-153,U+2BB-2BC,U+2C6,U+2DA,U+2DC,U+304,U+308,U+329,U+2000-206F,U+20AC,U+2122,U+2191,U+2193,U+2212,U+2215,U+FEFF,U+FFFD}@font-face{font-family:Fraunces Variable;font-style:normal;font-display:swap;font-weight:100 900;src:url(/chat/assets/fraunces-vietnamese-full-normal-7BpKI3vF.woff2)format("woff2-variations");unicode-range:U+102-103,U+110-111,U+128-129,U+168-169,U+1A0-1A1,U+1AF-1B0,U+300-301,U+303-304,U+308-309,U+323,U+329,U+1EA0-1EF9,U+20AB}@font-face{font-family:Fraunces Variable;font-style:normal;font-display:swap;font-weight:100 900;src:url(/chat/assets/fraunces-latin-ext-full-normal-YHFkNujK.woff2)format("woff2-variations");unicode-range:U+100-2BA,U+2BD-2C5,U+2C7-2CC,U+2CE-2D7,U+2DD-2FF,U+304,U+308,U+329,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:Fraunces Variable;font-style:normal;font-display:swap;font-weight:100 900;src:url(/chat/assets/fraunces-latin-full-normal-CFFu7zhK.woff2)format("woff2-variations");unicode-range:U+??,U+131,U+152-153,U+2BB-2BC,U+2C6,U+2DA,U+2DC,U+304,U+308,U+329,U+2000-206F,U+20AC,U+2122,U+2191,U+2193,U+2212,U+2215,U+FEFF,U+FFFD}@font-face{font-family:Fraunces Variable;font-style:italic;font-display:swap;font-weight:100 900;src:url(/chat/assets/fraunces-vietnamese-full-italic-BHALq22K.woff2)format("woff2-variations");unicode-range:U+102-103,U+110-111,U+128-129,U+168-169,U+1A0-1A1,U+1AF-1B0,U+300-301,U+303-304,U+308-309,U+323,U+329,U+1EA0-1EF9,U+20AB}@font-face{font-family:Fraunces Variable;font-style:italic;font-display:swap;font-weight:100 900;src:url(/chat/assets/fraunces-latin-ext-full-italic-B8-t4Nou.woff2)format("woff2-variations");unicode-range:U+100-2BA,U+2BD-2C5,U+2C7-2CC,U+2CE-2D7,U+2DD-2FF,U+304,U+308,U+329,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:Fraunces Variable;font-style:italic;font-display:swap;font-weight:100 900;src:url(/chat/assets/fraunces-latin-full-italic-D2JnYqd-.woff2)format("woff2-variations");unicode-range:U+??,U+131,U+152-153,U+2BB-2BC,U+2C6,U+2DA,U+2DC,U+304,U+308,U+329,U+2000-206F,U+20AC,U+2122,U+2191,U+2193,U+2212,U+2215,U+FEFF,U+FFFD}:root{--color-bg:#f5efe3;--color-surface:#fffcf6;--color-surface-2:#ede2ca;--color-surface-3:#e1d3b3;--color-sidebar:#eee3cd;--color-border:#ddcca5;--color-border-2:#e6d9b9;--color-text:#241f16;--color-text-muted:#6d6250;--color-text-faint:#a2947a;--accent-l:#2f4d8c;--accent-l-hover:#263e70;--accent-l-active:#1e325a;--accent-l-contrast:#fdf9f0;--accent-l-tint:#2f4d8c1f;--accent-l-tint-strong:#2f4d8c38;--accent-d:#7c9de8;--accent-d-hover:#93b1ec;--accent-d-active:#648ae0;--accent-d-contrast:#10182a;--accent-d-tint:#7c9de82e;--accent-d-tint-strong:#7c9de84d;--color-accent:var(--accent-l);--color-accent-hover:var(--accent-l-hover);--color-accent-active:var(--accent-l-active);--color-accent-contrast:var(--accent-l-contrast);--color-accent-tint:var(--accent-l-tint);--color-accent-tint-strong:var(--accent-l-tint-strong);--color-success:#3d7d49;--color-success-tint:#3d7d4921;--color-warning:#9c7d1f;--color-warning-tint:#9c7d1f26;--color-danger:#b23b3b;--color-danger-tint:#b23b3b1c;--color-info:#2c6c85;--color-info-tint:#2c6c851f;--space-1:4px;--space-2:8px;--space-3:12px;--space-4:16px;--space-5:20px;--space-6:24px;--space-8:32px;--radius-sm:6px;--radius-md:9px;--radius-lg:14px;--radius-full:999px;--shadow-sm:0 1px 2px #241a0c14;--shadow-md:0 12px 32px #241a0c24;--shadow-lg:0 20px 48px #241a0c38;--focus-ring:0 0 0 3px var(--color-accent-tint-strong);--font-sans:"Public Sans", -apple-system, BlinkMacSystemFont, "Segoe UI", Avenir, Helvetica, Arial, sans-serif;--font-serif:"Fraunces Variable", Georgia, "Times New Roman", serif;--font-mono:"SFMono-Regular", Consolas, "Liberation Mono", Menlo, monospace;--font-size-2xs:10.5px;--font-size-xs:11px;--font-size-sm:12px;--font-size-base:13px;--font-size-md:14px;--font-size-lg:16px;--font-size-xl:20px;--font-size-2xl:28px;--font-weight-regular:400;--font-weight-medium:500;--font-weight-semibold:600;--font-weight-bold:700;--line-height-tight:1.25;--line-height-normal:1.5;--line-height-relaxed:1.65;font-family:var(--font-sans);font-size:var(--font-size-base);line-height:var(--line-height-normal);font-weight:var(--font-weight-regular);--lightningcss-light:initial;--lightningcss-dark: ;color-scheme:light;color:var(--color-text);background-color:var(--color-bg);font-synthesis:none;text-rendering:optimizelegibility;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;-webkit-text-size-adjust:100%}@media (prefers-color-scheme:dark){:root:not([data-theme=light]){--lightningcss-light: ;--lightningcss-dark:initial;color-scheme:dark;--color-bg:#1c1712;--color-surface:#251f18;--color-surface-2:#2d251c;--color-surface-3:#392f23;--color-sidebar:#150f0b;--color-border:#3c3021;--color-border-2:#2e2519;--color-text:#f1e7d6;--color-text-muted:#b3a488;--color-text-faint:#7c6f59;--color-accent:var(--accent-d);--color-accent-hover:var(--accent-d-hover);--color-accent-active:var(--accent-d-active);--color-accent-contrast:var(--accent-d-contrast);--color-accent-tint:var(--accent-d-tint);--color-accent-tint-strong:var(--accent-d-tint-strong);--color-success:#74bf80;--color-success-tint:#74bf8029;--color-warning:#d3b354;--color-warning-tint:#d3b35429;--color-danger:#e28080;--color-danger-tint:#e2808029;--color-info:#64b3d1;--color-info-tint:#64b3d129;--shadow-sm:0 1px 2px #0000004d;--shadow-md:0 12px 32px #00000073;--shadow-lg:0 20px 48px #0000008c}}:root[data-theme=dark]{--lightningcss-light: ;--lightningcss-dark:initial;color-scheme:dark;--color-bg:#1c1712;--color-surface:#251f18;--color-surface-2:#2d251c;--color-surface-3:#392f23;--color-sidebar:#150f0b;--color-border:#3c3021;--color-border-2:#2e2519;--color-text:#f1e7d6;--color-text-muted:#b3a488;--color-text-faint:#7c6f59;--color-accent:var(--accent-d);--color-accent-hover:var(--accent-d-hover);--color-accent-active:var(--accent-d-active);--color-accent-contrast:var(--accent-d-contrast);--color-accent-tint:var(--accent-d-tint);--color-accent-tint-strong:var(--accent-d-tint-strong);--color-success:#74bf80;--color-success-tint:#74bf8029;--color-warning:#d3b354;--color-warning-tint:#d3b35429;--color-danger:#e28080;--color-danger-tint:#e2808029;--color-info:#64b3d1;--color-info-tint:#64b3d129;--shadow-sm:0 1px 2px #0000004d;--shadow-md:0 12px 32px #00000073;--shadow-lg:0 20px 48px #0000008c}:root[data-accent=forest]{--accent-l:#2f6b46;--accent-l-hover:#265839;--accent-l-active:#1d452c;--accent-l-contrast:#fdf9f0;--accent-l-tint:#2f6b4621;--accent-l-tint-strong:#2f6b463d;--accent-d:#6fbd88;--accent-d-hover:#8cd0a1;--accent-d-active:#56ab72;--accent-d-contrast:#0f2318;--accent-d-tint:#6fbd882e;--accent-d-tint-strong:#6fbd884d}:root[data-accent=violet]{--accent-l:#5a4292;--accent-l-hover:#4a3579;--accent-l-active:#3b2a61;--accent-l-contrast:#fdf9f0;--accent-l-tint:#5a429221;--accent-l-tint-strong:#5a42923d;--accent-d:#ab92ee;--accent-d-hover:#bda9f2;--accent-d-active:#957ae6;--accent-d-contrast:#1a1230;--accent-d-tint:#ab92ee2e;--accent-d-tint-strong:#ab92ee4d}:root[data-accent=amber]{--accent-l:#9a6414;--accent-l-hover:#7f5210;--accent-l-active:#65410c;--accent-l-contrast:#fffaf0;--accent-l-tint:#9a641421;--accent-l-tint-strong:#9a64143d;--accent-d:#e0a94e;--accent-d-hover:#ebbb6c;--accent-d-active:#d1993a;--accent-d-contrast:#2a1c06;--accent-d-tint:#e0a94e2e;--accent-d-tint-strong:#e0a94e4d}:root[data-accent=teal]{--accent-l:#1f6b73;--accent-l-hover:#19565c;--accent-l-active:#134348;--accent-l-contrast:#f4fbfb;--accent-l-tint:#1f6b7321;--accent-l-tint-strong:#1f6b733d;--accent-d:#63bfc9;--accent-d-hover:#82cfd7;--accent-d-active:#4aaeb9;--accent-d-contrast:#06242a;--accent-d-tint:#63bfc92e;--accent-d-tint-strong:#63bfc94d}*{box-sizing:border-box}html,body,#root{height:100%}body{background-color:var(--color-bg);margin:0}button{cursor:pointer;font-family:inherit}*{scrollbar-width:thin;scrollbar-color:var(--color-border) transparent}::-webkit-scrollbar{width:10px;height:10px}::-webkit-scrollbar-track{background:0 0}::-webkit-scrollbar-thumb{background-color:var(--color-border);border-radius:var(--radius-full);background-clip:padding-box;border:2px solid #0000}::-webkit-scrollbar-thumb:hover{background-color:var(--color-text-faint)}::-webkit-scrollbar-corner{background:0 0}.font-display{font-family:var(--font-serif);font-variation-settings:"opsz" 32, "SOFT" 18;letter-spacing:-.01em}.font-voice{font-family:var(--font-serif);font-variation-settings:"opsz" 14, "SOFT" 55;font-style:italic}a:focus-visible,button:focus-visible,input:focus-visible,textarea:focus-visible,[tabindex]:focus-visible{box-shadow:var(--focus-ring);border-radius:var(--radius-sm);outline:none}@keyframes fade-up{0%{opacity:0;transform:translateY(4px)}to{opacity:1;transform:translateY(0)}}.fade-up{animation:.16s both fade-up}@keyframes live-blink{0%,to{opacity:1}50%{opacity:.35}}.btn{font-family:inherit;font-weight:var(--font-weight-medium);border-radius:var(--radius-sm);cursor:pointer;transition:background-color .15s,border-color .15s,color .15s,opacity .15s}.btn:disabled{cursor:default;opacity:.55}.btn-primary{justify-content:center;align-items:center;gap:var(--space-2);background-color:var(--color-accent);color:var(--color-accent-contrast);padding:var(--space-2) var(--space-4);font-size:var(--font-size-sm);font-weight:var(--font-weight-medium);border-radius:var(--radius-sm);cursor:pointer;border:none;transition:background-color .15s,opacity .15s;display:flex}.btn-primary:hover:not(:disabled){background-color:var(--color-accent-hover)}.btn-primary:active:not(:disabled){background-color:var(--color-accent-active)}.btn-primary:disabled{background-color:var(--color-surface-3);color:var(--color-text-faint);cursor:default;opacity:1}.btn-secondary{background-color:var(--color-surface);border:1px solid var(--color-border);color:var(--color-text);padding:var(--space-2) var(--space-4);font-size:var(--font-size-sm);font-weight:var(--font-weight-medium);border-radius:var(--radius-sm);cursor:pointer;transition:border-color .15s,color .15s}.btn-secondary:hover:not(:disabled){border-color:var(--color-accent);color:var(--color-accent)}.btn-secondary-sm{color:var(--color-text-muted);font-size:var(--font-size-xs);font-weight:var(--font-weight-medium);padding:var(--space-1) var(--space-2);border-radius:var(--radius-sm);cursor:pointer;background:0 0;border:none;transition:background-color .15s,color .15s}.btn-secondary-sm:hover:not(:disabled){color:var(--color-text);background-color:var(--color-surface-2)}.btn-secondary-sm--danger:hover:not(:disabled){color:var(--color-danger);background-color:var(--color-danger-tint)}.btn-danger{justify-content:center;align-items:center;gap:var(--space-2);color:var(--color-danger);border:1px solid var(--color-danger);padding:var(--space-2) var(--space-4);font-size:var(--font-size-sm);font-weight:var(--font-weight-medium);border-radius:var(--radius-sm);cursor:pointer;background-color:#0000;transition:background-color .15s,opacity .15s;display:inline-flex}.btn-danger:hover:not(:disabled){background-color:var(--color-danger-tint)}.btn-danger:disabled{opacity:.45;cursor:not-allowed}.banner{padding:var(--space-3) var(--space-4);border-radius:var(--radius-sm);font-size:var(--font-size-sm);line-height:var(--line-height-normal);margin-bottom:var(--space-3)}.banner--error{background-color:var(--color-danger-tint);color:var(--color-danger)}.banner--success{background-color:var(--color-success-tint);color:var(--color-success)}.banner--warning{background-color:var(--color-warning-tint);color:var(--color-warning)}.banner--info{background-color:var(--color-info-tint);color:var(--color-info)}.empty-state-text{color:var(--color-text-faint);font-size:var(--font-size-sm);padding:var(--space-3) var(--space-2);line-height:var(--line-height-relaxed)}.item-list{margin:var(--space-4) 0 0;gap:var(--space-2);flex-direction:column;padding:0;list-style:none;display:flex}.item-row{padding:var(--space-2) var(--space-3);border-radius:var(--radius-sm);background-color:var(--color-surface-2)}.item-row--stacked{align-items:stretch;gap:var(--space-2);flex-direction:column;display:flex}.item-row-main{justify-content:space-between;align-items:center;gap:var(--space-3);display:flex}.item-actions{gap:var(--space-1);flex-shrink:0;display:flex}.item-title{font-size:var(--font-size-sm);font-weight:var(--font-weight-medium);color:var(--color-text)}.item-meta{font-size:var(--font-size-xs);color:var(--color-text-faint)}.item-status{font-size:var(--font-size-xs);color:var(--color-text-muted)}.eyebrow{font-size:var(--font-size-2xs);font-weight:var(--font-weight-semibold);text-transform:uppercase;letter-spacing:.06em;color:var(--color-text-faint)}.app-root{flex-direction:column;width:100%;height:100vh;display:flex;overflow:hidden}.titlebar{background-color:var(--color-sidebar);border-bottom:1px solid var(--color-border);-webkit-user-select:none;user-select:none;flex-shrink:0;justify-content:space-between;align-items:center;height:38px;display:flex}.titlebar-brand{padding:0 var(--space-3);min-width:0;height:100%;color:var(--color-text-muted);align-items:center;gap:7px;display:flex}.titlebar-mark{color:var(--color-accent);flex-shrink:0;display:flex}.titlebar-title{font-size:var(--font-size-xs);font-weight:var(--font-weight-medium);text-overflow:ellipsis;white-space:nowrap;overflow:hidden}.titlebar-controls{flex-shrink:0;align-items:stretch;height:100%;display:flex}.titlebar-btn{width:44px;height:100%;color:var(--color-text-muted);background:0 0;border:none;justify-content:center;align-items:center;transition:background-color .1s,color .1s;display:flex}.titlebar-btn:hover{background-color:var(--color-surface-3);color:var(--color-text)}.titlebar-btn:active{background-color:var(--color-border)}.titlebar-btn--close:hover{color:#fff8ef;background-color:#c9432f}.titlebar-btn--close:active{background-color:#a8371f}.titlebar--mac{justify-content:flex-start}.titlebar-traffic-lights{flex-shrink:0;align-items:center;gap:8px;height:100%;padding:0 20px;display:flex}.traffic-light{border:none;border-radius:50%;justify-content:center;align-items:center;width:12px;height:12px;padding:0;line-height:0;display:flex}.traffic-light--close{background-color:#ff5f57}.traffic-light--minimize{background-color:#ffbd2e}.traffic-light--zoom{background-color:#28c840}.traffic-light-glyph{opacity:0}.titlebar-traffic-lights:hover .traffic-light-glyph{opacity:1}.titlebar-brand--center{padding:0 var(--space-2);flex:1;justify-content:center}.titlebar-spacer{flex-shrink:0;height:100%}.app-shell{flex:1;width:100%;min-height:0;display:flex;overflow:hidden}.sidebar{width:var(--sidebar-width,236px);background-color:var(--color-sidebar);border-right:1px solid var(--color-border);flex-direction:column;flex-shrink:0;min-width:188px;max-width:420px;display:flex;overflow:hidden}.sidebar-header{padding:var(--space-4) var(--space-4) var(--space-3);border-bottom:1px solid var(--color-border);justify-content:space-between;align-items:center;display:flex}.sidebar-brand{align-items:center;gap:var(--space-2);padding:var(--space-1);margin:calc(var(--space-1) * -1);border-radius:var(--radius-sm);cursor:pointer;background:0 0;border:none;transition:background-color .15s;display:flex}.sidebar-brand:hover,.sidebar-brand:focus-visible{background-color:var(--color-surface-2)}.sidebar-brand--active .sidebar-brand-mark{box-shadow:0 0 0 2px var(--color-accent-tint-strong)}.sidebar-brand-mark{background-color:var(--color-accent);width:24px;height:24px;color:var(--color-accent-contrast);border-radius:var(--radius-md);flex-shrink:0;justify-content:center;align-items:center;display:flex}.sidebar-brand-name{font-family:var(--font-serif);font-variation-settings:"opsz" 24, "SOFT" 15;font-weight:var(--font-weight-semibold);font-size:var(--font-size-md);letter-spacing:-.01em}.sidebar-help-btn{border:1px solid var(--color-border-2);width:20px;height:20px;color:var(--color-text-faint);font-size:var(--font-size-xs);font-weight:var(--font-weight-medium);cursor:pointer;background:0 0;border-radius:50%;flex-shrink:0;justify-content:center;align-items:center;line-height:1;transition:background-color .15s,color .15s,border-color .15s;display:flex}.sidebar-help-btn:hover,.sidebar-help-btn:focus-visible{background-color:var(--color-surface-2);color:var(--color-text);border-color:var(--color-border)}.sidebar-clock{padding:var(--space-4);border-bottom:1px solid var(--color-border)}.sidebar-clock-time{font-size:var(--font-size-2xl);letter-spacing:-.03em;color:var(--color-text);font-variant-numeric:tabular-nums;font-weight:300;line-height:1}.sidebar-clock-date{font-size:var(--font-size-xs);color:var(--color-text-muted);margin-top:var(--space-1)}.sidebar-nav{padding:var(--space-3) var(--space-3);gap:var(--space-3);flex-direction:column;flex:1;min-height:0;display:flex;overflow:hidden}.session-list{flex-direction:column;flex:1;gap:1px;min-height:0;margin:0 -2px;padding:0 2px;display:flex;overflow-y:auto}.session-item{border-radius:0 var(--radius-sm) var(--radius-sm) 0;border-left:2px solid #0000;align-items:stretch;width:100%;display:flex}.session-item:hover{background-color:var(--color-surface-2)}.session-item--active{background-color:var(--color-accent-tint);border-left-color:var(--color-accent)}.session-item-main{justify-content:space-between;align-items:baseline;gap:var(--space-2);text-align:left;min-width:0;padding:7px 2px 7px var(--space-2);color:var(--color-text);font-size:var(--font-size-sm);background:0 0;border:none;flex:1;display:flex}.session-item--active .session-item-main{font-weight:var(--font-weight-medium)}.session-item-title{text-overflow:ellipsis;white-space:nowrap;flex:1;overflow:hidden}.session-item-date{color:var(--color-text-faint);font-size:var(--font-size-xs);flex-shrink:0}.session-item-delete{border-radius:var(--radius-sm);width:22px;height:22px;color:var(--color-text-faint);opacity:0;background:0 0;border:none;flex-shrink:0;align-self:center;margin-right:5px;font-size:15px;line-height:1;transition:opacity .1s,background-color .1s,color .1s}.session-item:hover .session-item-delete,.session-item-delete:focus-visible{opacity:1}.session-item-delete:hover{background-color:var(--color-danger-tint);color:var(--color-danger)}.sidebar-footer{border-top:1px solid var(--color-border);padding:var(--space-2) var(--space-2) var(--space-3);flex-direction:column;flex-shrink:0;gap:2px;display:flex}.sidebar-nav-more{font-size:var(--font-size-sm);color:var(--color-text-faint);padding:6px var(--space-2);border-radius:var(--radius-sm);cursor:default;-webkit-user-select:none;user-select:none}.sidebar-nav-more--active{text-align:left;width:100%;color:var(--color-text-muted);cursor:pointer;background:0 0;border:none;font-family:inherit}.sidebar-nav-more--active:hover{color:var(--color-text);background-color:var(--color-surface-2)}.sidebar-user{padding:var(--space-2) var(--space-2) 2px;margin-top:var(--space-1);border-top:1px solid var(--color-border-2);justify-content:space-between;align-items:center;display:flex}.sidebar-user-name{font-size:var(--font-size-sm);font-weight:var(--font-weight-medium);text-overflow:ellipsis;white-space:nowrap;overflow:hidden}.sidebar-nav-more--current{color:var(--color-accent);font-weight:var(--font-weight-medium);background-color:var(--color-accent-tint)}.sidebar-header-actions{align-items:center;gap:var(--space-1);flex-shrink:0;display:flex}.sidebar-collapse-toggle{border:1px solid var(--color-border-2);width:20px;height:20px;color:var(--color-text-faint);cursor:pointer;background:0 0;border-radius:50%;flex-shrink:0;justify-content:center;align-items:center;font-size:11px;line-height:1;transition:background-color .15s,color .15s,border-color .15s;display:flex}.sidebar-collapse-toggle:hover,.sidebar-collapse-toggle:focus-visible{background-color:var(--color-surface-2);color:var(--color-text);border-color:var(--color-border)}.sidebar--collapsed{align-items:center;width:56px;min-width:56px}.sidebar-header--collapsed{justify-content:center;gap:var(--space-2);padding:var(--space-3) 0;flex-direction:column}.sidebar-rail-brand{border-radius:var(--radius-md);background-color:var(--color-accent);width:32px;height:32px;color:var(--color-accent-contrast);cursor:pointer;border:none;flex-shrink:0;justify-content:center;align-items:center;transition:background-color .15s,box-shadow .15s;display:flex}.sidebar-rail-brand:hover,.sidebar-rail-brand:focus-visible{background-color:var(--color-accent-hover)}.sidebar-rail-brand.sidebar-rail-btn--active{box-shadow:0 0 0 2px var(--color-accent-tint-strong)}.sidebar-rail{align-items:center;gap:var(--space-2);padding:var(--space-2) 0;flex-direction:column;flex:1;min-height:0;display:flex;overflow-y:auto}.sidebar-rail--footer{border-top:1px solid var(--color-border);padding:var(--space-3) 0;flex:none}.sidebar-rail-btn{border:1px solid var(--color-border-2);border-radius:var(--radius-md);width:32px;height:32px;color:var(--color-text-muted);font-size:var(--font-size-sm);font-weight:var(--font-weight-semibold);text-transform:uppercase;cursor:pointer;background:0 0;flex-shrink:0;justify-content:center;align-items:center;transition:background-color .15s,color .15s,border-color .15s;display:flex}.sidebar-rail-btn:hover,.sidebar-rail-btn:focus-visible{background-color:var(--color-surface-2);color:var(--color-text);border-color:var(--color-border)}.sidebar-rail-btn--active{background-color:var(--color-accent);color:var(--color-accent-contrast);border-color:var(--color-accent)}.panel-resize-handle{z-index:3;cursor:col-resize;background-color:#0000;flex:none;width:7px;margin:0 -3px;transition:background-color .12s;position:relative}.panel-resize-handle:hover,.panel-resize-handle:focus-visible,.panel-resize-handle--active{background-color:var(--color-accent-tint-strong)}.panel-resize-handle:focus-visible{box-shadow:var(--focus-ring);outline:none}body.is-resizing-panel{cursor:col-resize;-webkit-user-select:none;user-select:none}body.is-resizing-panel *{cursor:col-resize!important;-webkit-user-select:none!important;user-select:none!important}.live-dot{background-color:var(--color-text-faint);border-radius:50%;flex-shrink:0;width:5px;height:5px;display:inline-block}.live-dot--open{background-color:var(--color-success);animation:2.4s ease-in-out infinite live-blink}.live-dot--connecting,.live-dot--reconnecting{background-color:var(--color-info);animation:1s ease-in-out infinite live-blink}.live-dot--closed{background-color:var(--color-text-faint)}.right-panel{width:var(--context-panel-width,208px);border-left:1px solid var(--color-border);background-color:var(--color-sidebar);flex-direction:column;flex-shrink:0;min-width:168px;max-width:420px;display:flex;overflow-y:auto}.right-panel-header{justify-content:space-between;align-items:center;gap:var(--space-2);padding:var(--space-4) var(--space-3) var(--space-3);border-bottom:1px solid var(--color-border);font-size:var(--font-size-2xs);font-weight:var(--font-weight-semibold);text-transform:uppercase;letter-spacing:.06em;color:var(--color-text-faint);display:flex}.right-panel--collapsed{width:40px;min-width:40px;padding:var(--space-3) 0;align-items:center;gap:var(--space-3);flex-shrink:0}.right-panel-collapsed-streak{font-size:var(--font-size-xs);color:var(--color-text-muted);white-space:nowrap}.panel-section{padding:var(--space-3) var(--space-3);border-bottom:1px solid var(--color-border-2)}.right-panel .panel-section:last-child{border-bottom:none}.panel-section-title{font-size:var(--font-size-2xs);font-weight:var(--font-weight-semibold);text-transform:uppercase;letter-spacing:.06em;color:var(--color-text-faint);margin-bottom:var(--space-2)}.context-row{justify-content:space-between;align-items:center;gap:var(--space-2);padding:4px 0;display:flex}.context-row-label{font-size:var(--font-size-xs);color:var(--color-text-faint);flex-shrink:0}.context-row-value{font-size:var(--font-size-xs);color:var(--color-text-muted);text-align:right;align-items:center;gap:5px;display:flex}.tool-row{padding:var(--space-2) 0;border-bottom:1px solid var(--color-border-2)}.tool-row:last-child{border-bottom:none;padding-bottom:0}.tool-name{font-size:var(--font-size-sm);font-weight:var(--font-weight-medium);color:var(--color-text);margin-bottom:2px}.tool-desc{font-size:var(--font-size-xs);color:var(--color-text-muted);line-height:var(--line-height-relaxed)}.panel-loading,.panel-error{font-size:var(--font-size-xs);color:var(--color-text-faint)}.panel-error{color:var(--color-danger)}.modal-overlay{z-index:100;padding:var(--space-4);background-color:#0f0f1480;justify-content:center;align-items:center;display:flex;position:fixed;inset:0}.modal-panel{background-color:var(--color-surface);border:1px solid var(--color-border);border-radius:var(--radius-lg);box-shadow:var(--shadow-lg);padding:var(--space-5) var(--space-6);width:440px;max-width:90vw;max-height:80vh;overflow-y:auto}.modal-header{justify-content:space-between;align-items:center;display:flex}.modal-header h2{font-family:var(--font-serif);font-variation-settings:"opsz" 28, "SOFT" 15;font-size:var(--font-size-xl);font-weight:var(--font-weight-semibold);color:var(--color-text);margin:0}.modal-close{border-radius:var(--radius-sm);color:var(--color-text-muted);cursor:pointer;background:0 0;border:none;padding:3px 8px;font-size:1.3rem;line-height:1;transition:background-color .15s,color .15s}.modal-close:hover{background-color:var(--color-surface-2);color:var(--color-text)}.modal-subtitle{font-size:var(--font-size-sm);color:var(--color-text-muted);margin:var(--space-2) 0 var(--space-4);line-height:var(--line-height-relaxed)}.documents-page{min-height:0;padding:var(--space-4) var(--space-6) var(--space-5);flex-direction:column;flex:1;display:flex;overflow:hidden}.documents-page-toolbar{justify-content:space-between;align-items:flex-start;gap:var(--space-4);flex-shrink:0;display:flex}.documents-page-toolbar .modal-subtitle{max-width:640px;margin:0}.documents-page-toolbar-actions{align-items:center;gap:var(--space-3);flex-shrink:0;display:flex}.view-toggle{border:1px solid var(--color-border-2);border-radius:var(--radius-sm);display:flex;overflow:hidden}.view-toggle-btn{background-color:var(--color-surface);width:30px;height:30px;color:var(--color-text-muted);cursor:pointer;border:none;justify-content:center;align-items:center;font-size:14px;transition:background-color .15s,color .15s;display:flex}.view-toggle-btn+.view-toggle-btn{border-left:1px solid var(--color-border-2)}.view-toggle-btn:hover{background-color:var(--color-surface-2);color:var(--color-text)}.view-toggle-btn--active{background-color:var(--color-accent-tint);color:var(--color-accent)}.documents-drive{gap:var(--space-4);margin-top:var(--space-3);flex:1;min-height:0;display:flex}.documents-list-pane{border-right:1px solid var(--color-border);overflow-y:auto}.documents-list-pane--list{width:260px;padding-right:var(--space-3);flex-shrink:0}.documents-list-pane--grid{min-width:0;padding-right:var(--space-4);flex:2 1 0}.documents-grid{gap:var(--space-3);grid-template-columns:repeat(auto-fill,minmax(160px,1fr));align-content:start;display:grid}.documents-rows{flex-direction:column;gap:1px;display:flex}.documents-detail-pane{gap:var(--space-3);flex-direction:column;flex:1;min-width:0;display:flex;overflow-y:auto}.doc-entry{position:relative}.doc-entry--card,.doc-entry-renaming{height:100%}.doc-rename-input{border:1px solid var(--color-accent);border-radius:var(--radius-sm);width:100%;font:inherit;font-size:var(--font-size-sm);background-color:var(--color-surface);color:var(--color-text);padding:4px 6px}.doc-menu-wrap{z-index:2;position:absolute}.doc-entry--card .doc-menu-wrap{top:6px;right:6px}.doc-entry--row .doc-menu-wrap{top:50%;right:4px;transform:translateY(-50%)}.doc-menu-trigger{border-radius:var(--radius-sm);cursor:pointer;opacity:0;border:none;justify-content:center;align-items:center;width:22px;height:22px;font-size:14px;line-height:1;transition:opacity .12s,background-color .12s;display:flex}.doc-entry:hover .doc-menu-trigger,.doc-menu-trigger:focus-visible,.doc-menu-trigger[aria-expanded=true]{opacity:1}.doc-entry--card .doc-menu-trigger{color:#fff;background-color:#0006}.doc-entry--card .doc-menu-trigger:hover,.doc-entry--card .doc-menu-trigger[aria-expanded=true]{background-color:#0009}.doc-entry--row .doc-menu-trigger{color:var(--color-text-faint);background-color:#0000}.doc-entry--row .doc-menu-trigger:hover,.doc-entry--row .doc-menu-trigger[aria-expanded=true]{background-color:var(--color-surface-2);color:var(--color-text)}.doc-menu-popover{z-index:3;min-width:170px;padding:var(--space-1);border:1px solid var(--color-border);border-radius:var(--radius-md);background-color:var(--color-surface);box-shadow:var(--shadow-md);flex-direction:column;display:flex;position:absolute;top:calc(100% + 4px);right:0}.doc-menu-popover button{text-align:left;width:100%;padding:7px var(--space-2);border-radius:var(--radius-sm);font-size:var(--font-size-sm);color:var(--color-text);cursor:pointer;background:0 0;border:none;display:block}.doc-menu-popover button:hover{background-color:var(--color-surface-2)}.doc-menu-popover .doc-menu-item--danger{color:var(--color-danger)}.doc-menu-popover .doc-menu-item--danger:hover{background-color:var(--color-danger-tint)}.recent-item-card{align-items:center;gap:var(--space-2);padding:var(--space-2);border-radius:var(--radius-sm);cursor:pointer;text-align:left;background:0 0;border:none;width:100%;transition:background-color .15s,border-color .15s;display:flex}.recent-item-card:hover{background-color:var(--color-surface-2)}.recent-item-card--active{background-color:var(--color-accent-tint)}.recent-item-card-icon{border-radius:var(--radius-sm);background-color:var(--color-surface-3);width:28px;height:28px;color:var(--color-text-muted);font-size:9px;font-weight:var(--font-weight-semibold);letter-spacing:.02em;flex-shrink:0;justify-content:center;align-items:center;display:flex}.recent-item-card--active .recent-item-card-icon{background-color:var(--color-accent);color:var(--color-accent-contrast)}.recent-item-card-body{flex-direction:column;flex:1;min-width:0;display:flex}.recent-item-card-title{font-size:var(--font-size-sm);color:var(--color-text);text-overflow:ellipsis;white-space:nowrap;overflow:hidden}.recent-item-card-meta{align-items:center;gap:var(--space-2);min-width:0;display:flex}.recent-item-card-date{font-size:var(--font-size-2xs);color:var(--color-text-faint);flex-shrink:0}.recent-item-card--card{border:1px solid var(--color-border-2);border-radius:var(--radius-md);background-color:var(--color-surface);flex-direction:column;align-items:stretch;gap:0;height:100%;padding:0;overflow:hidden}.recent-item-card--card:hover{border-color:var(--color-border)}.recent-item-card--card .recent-item-card-body{padding:var(--space-2) var(--space-3) var(--space-3);gap:2px}.recent-item-card--card .recent-item-card-title{font-weight:var(--font-weight-medium);white-space:normal;overflow:visible}.recent-item-thumb{aspect-ratio:4/3;border-bottom:1px solid var(--color-border-2);background-color:#fdfbf5;flex-direction:column;gap:6px;padding:10px 12px;display:flex;overflow:hidden}.recent-item-thumb-badge{font-size:8.5px;font-weight:var(--font-weight-semibold);letter-spacing:.03em;color:#8a8368;background-color:#0000000f;border-radius:3px;flex-shrink:0;align-self:flex-start;padding:2px 6px}.recent-item-thumb-text{color:#4a4636;-webkit-line-clamp:8;-webkit-box-orient:vertical;flex:1;font-size:6.5px;line-height:1.55;display:-webkit-box;overflow:hidden}.recent-item-thumb-lines{flex-direction:column;flex:1;justify-content:center;gap:6px;display:flex}.recent-item-thumb-lines span{background-color:#00000014;border-radius:2px;height:4px;display:block}.recent-item-thumb-lines span:first-child{width:88%}.recent-item-thumb-lines span:nth-child(2){width:95%}.recent-item-thumb-lines span:nth-child(3){width:65%}.recent-item-card-tags{flex-wrap:wrap;gap:4px;min-width:0;display:flex}.recent-item-card-tag{font-size:var(--font-size-2xs);color:var(--color-text-muted);background-color:var(--color-surface-2);border-radius:var(--radius-sm);padding:1px 6px}.doc-detail-header{justify-content:space-between;align-items:flex-start;gap:var(--space-3);flex-wrap:wrap;display:flex}.doc-detail-title-input{font-family:var(--font-serif);font-size:var(--font-size-lg);font-weight:var(--font-weight-semibold);color:var(--color-text);border-radius:var(--radius-sm);padding:var(--space-1) var(--space-2);background:0 0;border:1px solid #0000;flex:1;width:100%;min-width:160px}.doc-detail-title-input:hover{border-color:var(--color-border)}.doc-detail-title-input:focus{border-color:var(--color-accent);box-shadow:var(--focus-ring);background-color:var(--color-surface);outline:none}.doc-detail-actions{gap:var(--space-2);flex-wrap:wrap;flex-shrink:0;display:flex}.doc-generation-note{margin:var(--space-2) 0 0;font-size:var(--font-size-2xs);color:var(--color-text-faint)}.doc-detail-body{border:1px solid var(--color-border);border-radius:var(--radius-md);background-color:var(--color-surface);min-height:260px;padding:var(--space-4);flex:1;overflow:auto}.doc-detail-body--pdf{background-color:var(--color-surface-3);padding:0}.doc-detail-pdf-frame{border:none;width:100%;height:100%;min-height:420px;display:block}.doc-detail-editor{resize:vertical;width:100%;height:100%;min-height:320px;color:var(--color-text);font-family:var(--font-mono);font-size:var(--font-size-sm);line-height:var(--line-height-relaxed);background:0 0;border:none;padding:0}.doc-detail-editor:focus{outline:none}.doc-detail-editor-actions{gap:var(--space-2);justify-content:flex-end;display:flex}@media (width<=760px){.documents-page-toolbar,.documents-drive{flex-direction:column}.documents-list-pane{border-right:none;border-bottom:1px solid var(--color-border);width:100%;max-height:200px;padding-right:0;padding-bottom:var(--space-2)}}.classroom-connect{justify-content:space-between;align-items:center;gap:var(--space-3);background-color:var(--color-surface-2);border:1px solid var(--color-border);border-radius:var(--radius-md);padding:var(--space-3);margin-bottom:var(--space-3);flex-wrap:wrap;display:flex}.classroom-connect-status{font-size:var(--font-size-sm);color:var(--color-text);align-items:center;gap:7px;display:flex}.classroom-connect-dot{background-color:var(--color-success);border-radius:50%;flex-shrink:0;width:7px;height:7px}.classroom-connect-actions{align-items:center;gap:var(--space-3);display:flex}.classroom-connect-disabled{flex-direction:column;align-items:flex-start;gap:6px;display:flex}.classroom-connect-note{font-size:var(--font-size-xs);color:var(--color-text-faint);margin:0}.settings-section{padding:var(--space-4) 0;border-bottom:1px solid var(--color-border-2)}.settings-section:first-of-type{padding-top:var(--space-2)}.settings-section--last{border-bottom:none;padding-bottom:0}.settings-section-title{margin:0 0 var(--space-3);font-family:inherit;font-size:var(--font-size-2xs);font-weight:var(--font-weight-semibold);text-transform:uppercase;letter-spacing:.06em;color:var(--color-text-faint)}.settings-account-name{font-size:var(--font-size-sm);color:var(--color-text)}.settings-appearance-row{justify-content:space-between;align-items:center;gap:var(--space-4);padding:var(--space-2) 0;display:flex}.settings-appearance-desc{margin:0 0 var(--space-2)}.settings-segmented{border:1px solid var(--color-border);border-radius:var(--radius-sm);flex-shrink:0;display:flex;overflow:hidden}.settings-segmented-option{color:var(--color-text-muted);font-size:var(--font-size-xs);font-weight:var(--font-weight-medium);padding:var(--space-1) var(--space-3);background-color:#0000;border:none;transition:background-color .15s,color .15s}.settings-segmented-option+.settings-segmented-option{border-left:1px solid var(--color-border)}.settings-segmented-option:hover{background-color:var(--color-surface-2);color:var(--color-text)}.settings-segmented-option--active{background-color:var(--color-accent);color:var(--color-accent-contrast)}.settings-segmented-option--active:hover{background-color:var(--color-accent-hover);color:var(--color-accent-contrast)}.settings-accents{gap:var(--space-2);flex-shrink:0;display:flex}.settings-accent-swatch{border-radius:var(--radius-full);width:22px;height:22px;box-shadow:0 0 0 1px var(--color-border);border:2px solid #0000;padding:0;transition:transform .12s,box-shadow .12s}.settings-accent-swatch:hover{transform:scale(1.12)}.settings-accent-swatch--active{border-color:var(--color-surface);box-shadow:0 0 0 2px var(--color-text)}.settings-section--danger .settings-section-title{color:var(--color-danger)}.settings-section--danger .settings-plan-line{margin-bottom:var(--space-3)}.modal-overlay--nested{z-index:110}.modal-panel--confirm{width:400px}.settings-delete-confirm{gap:var(--space-2);margin-bottom:var(--space-4);flex-direction:column;display:flex}.settings-delete-input{border:1px solid var(--color-border);border-radius:var(--radius-sm);width:100%;padding:var(--space-2);font:inherit;font-size:var(--font-size-sm);background-color:var(--color-surface);color:var(--color-text)}.settings-delete-actions{justify-content:flex-end;gap:var(--space-2);display:flex}.settings-plan{align-items:flex-start;gap:var(--space-2);flex-direction:column;display:flex}.settings-plan-line{font-size:var(--font-size-sm);color:var(--color-text-muted);margin:0}.settings-plan-status{font-size:var(--font-size-sm);font-weight:var(--font-weight-medium);color:var(--color-text);align-items:center;gap:7px;display:flex}.settings-waiting{font-size:var(--font-size-sm);color:var(--color-text-muted);margin:0;font-style:italic}.settings-plan .progress-bar-track{width:100%;margin-top:var(--space-1)}.settings-models{width:100%;margin-top:var(--space-2);padding-top:var(--space-3);border-top:1px solid var(--color-border-2)}.settings-models-title{font-size:var(--font-size-xs);font-weight:var(--font-weight-medium);color:var(--color-text);margin-bottom:var(--space-2)}.settings-model-list{gap:var(--space-1);flex-direction:column;display:flex}.settings-model-option{align-items:center;gap:var(--space-2);font-size:var(--font-size-sm);color:var(--color-text-muted);display:flex}.settings-note{margin:var(--space-2) 0 0;font-size:var(--font-size-2xs);color:var(--color-text-faint)}.settings-edu-form{align-items:center;gap:var(--space-2);margin-top:var(--space-2);flex-wrap:wrap;display:flex}.settings-edu-input{min-width:180px;padding:var(--space-2) var(--space-3);border:1px solid var(--color-border);border-radius:var(--radius-md);background-color:var(--color-surface);color:var(--color-text);font-family:inherit;font-size:var(--font-size-sm);flex:1}.settings-edu-input:focus-visible{box-shadow:var(--focus-ring);border-color:var(--color-accent);outline:none}.settings-edu-input--code{letter-spacing:.08em;flex:none;width:140px}.settings-edu-change-email{font-size:var(--font-size-2xs);color:var(--color-text-muted);cursor:pointer;background:0 0;border:none;padding:0;text-decoration:underline}.settings-edu-change-email:hover{color:var(--color-text)}.settings-topup{width:100%;margin-top:var(--space-2);padding-top:var(--space-3);border-top:1px solid var(--color-border-2)}.settings-topup-tiers{gap:var(--space-2);flex-wrap:wrap;display:flex}.settings-toggle{align-items:flex-start;gap:var(--space-2);cursor:pointer;display:flex}.settings-toggle input{margin-top:3px}.settings-toggle .toggle{margin-top:2px}.toggle{cursor:pointer;background:0 0;border:none;flex-shrink:0;align-items:center;padding:0;display:inline-flex}.toggle:disabled{cursor:default;opacity:.6}.toggle:focus-visible .toggle__track{box-shadow:var(--focus-ring)}.toggle__track{border-radius:var(--radius-full);background-color:var(--color-border-2);border:1px solid var(--color-border);transition:background-color .15s,border-color .15s,box-shadow .15s;display:inline-block;position:relative}.toggle__thumb{background-color:var(--color-surface);box-shadow:var(--shadow-sm);border-radius:50%;transition:transform .15s;position:absolute;top:1px;left:1px}.toggle--checked .toggle__track{background-color:var(--color-accent);border-color:var(--color-accent)}.toggle--sm .toggle__track{width:30px;height:17px}.toggle--sm .toggle__thumb{width:13px;height:13px}.toggle--sm.toggle--checked .toggle__thumb{transform:translate(13px)}.toggle--md .toggle__track{width:38px;height:21px}.toggle--md .toggle__thumb{width:17px;height:17px}.toggle--md.toggle--checked .toggle__thumb{transform:translate(17px)}.toggle--emphasized.toggle--checked .toggle__track{box-shadow:0 0 0 3px var(--color-accent-tint-strong)}.settings-toggle-label{font-size:var(--font-size-sm);color:var(--color-text);font-weight:var(--font-weight-medium);display:block}.settings-toggle-desc{font-size:var(--font-size-xs);color:var(--color-text-faint);margin-top:2px;display:block}.main-pane{background-color:var(--color-bg);flex-direction:column;flex:1;min-width:0;display:flex}.main-header{justify-content:space-between;align-items:center;gap:var(--space-3);padding:var(--space-3) var(--space-5);border-bottom:1px solid var(--color-border);flex-shrink:0;display:flex}.main-header-title{font-family:var(--font-serif);font-variation-settings:"opsz" 20, "SOFT" 12;font-size:var(--font-size-lg);font-weight:var(--font-weight-semibold);letter-spacing:-.005em;text-overflow:ellipsis;white-space:nowrap;margin:0;overflow:hidden}.main-header-status{align-items:center;gap:var(--space-1);font-size:var(--font-size-xs);color:var(--color-text-faint);flex-shrink:0;display:flex}.chat-pane{padding:var(--space-5) 0 var(--space-2);flex:1;overflow-y:auto}.chat-pane-banner{margin:0 auto var(--space-3);max-width:720px}.chat-empty-state{text-align:center;justify-content:center;align-items:center;gap:var(--space-2);height:100%;color:var(--color-text-muted);padding:0 var(--space-6);flex-direction:column;display:flex}.chat-empty-state-mark{border-radius:var(--radius-lg);background-color:var(--color-accent);width:48px;height:48px;color:var(--color-accent-contrast);margin-bottom:var(--space-2);box-shadow:var(--shadow-sm);justify-content:center;align-items:center;display:flex}.chat-empty-state h2{font-family:var(--font-serif);font-variation-settings:"opsz" 34, "SOFT" 22;font-size:1.7rem;font-weight:var(--font-weight-semibold);color:var(--color-text);margin:0}.chat-empty-state p{max-width:380px;font-size:var(--font-size-md);line-height:var(--line-height-relaxed);margin:0}.onboarding-welcome{text-align:center;justify-content:center;align-items:center;gap:var(--space-3);height:100%;padding:var(--space-6);flex-direction:column;display:flex;position:relative}.onboarding-welcome-dismiss{top:var(--space-2);right:var(--space-2);position:absolute}.onboarding-welcome h2{font-family:var(--font-serif);font-variation-settings:"opsz" 34, "SOFT" 22;font-size:1.7rem;font-weight:var(--font-weight-semibold);color:var(--color-text);margin:0}.onboarding-welcome-subtitle{max-width:480px;margin:0}.onboarding-welcome-prompts{gap:var(--space-2);width:100%;max-width:560px;margin-top:var(--space-2);grid-template-columns:repeat(2,minmax(0,1fr));display:grid}@media (width<=640px){.onboarding-welcome-prompts{grid-template-columns:1fr}}.onboarding-prompt{text-align:left;border:1px solid var(--color-border);border-radius:var(--radius-md);background-color:var(--color-surface);padding:var(--space-3);color:inherit;cursor:pointer;flex-direction:column;align-items:flex-start;gap:2px;font-family:inherit;transition:border-color .15s,background-color .15s;display:flex}.onboarding-prompt:hover{border-color:var(--color-accent);background-color:var(--color-accent-tint)}.onboarding-prompt-label{font-weight:var(--font-weight-medium);color:var(--color-text)}.onboarding-prompt-text{font-size:var(--font-size-sm);color:var(--color-text-muted)}.product-tour{z-index:60;pointer-events:none;position:fixed;inset:0}.product-tour-ring{border-radius:var(--radius-md);box-shadow:0 0 0 3px var(--color-accent-tint-strong), 0 0 0 999px #0f0f1414;transition:top .25s,left .25s,width .25s,height .25s;animation:2.2s ease-in-out infinite tour-ring-pulse;position:fixed}@keyframes tour-ring-pulse{0%,to{box-shadow:0 0 0 3px var(--color-accent-tint-strong), 0 0 0 999px #0f0f1414}50%{box-shadow:0 0 0 6px var(--color-accent-tint), 0 0 0 999px #0f0f1414}}@media (prefers-reduced-motion:reduce){.product-tour-ring{animation:none}}.product-tour-card{pointer-events:auto;background-color:var(--color-surface);border:1px solid var(--color-border);border-radius:var(--radius-lg);box-shadow:var(--shadow-md);padding:var(--space-4);animation:.22s cubic-bezier(.16,1,.3,1) both tour-card-in;position:fixed}@keyframes tour-card-in{0%{opacity:0;transform:translateY(6px)scale(.97)}to{opacity:1;transform:none}}@media (prefers-reduced-motion:reduce){.product-tour-card{animation:none}}.product-tour-card:before{content:"";background-color:var(--color-surface);border:1px solid var(--color-border);width:10px;height:10px;position:absolute;transform:rotate(45deg)}.product-tour-card--right:before{border-top:none;border-right:none;top:18px;left:-6px}.product-tour-card--left:before{border-bottom:none;border-left:none;top:18px;right:-6px}.product-tour-card--top:before{border-top:none;border-left:none;margin-left:-5px;bottom:-6px;left:50%}.product-tour-step{margin:0 0 var(--space-1);font-size:var(--font-size-2xs);font-weight:var(--font-weight-semibold);letter-spacing:.04em;text-transform:uppercase;color:var(--color-accent)}.product-tour-title{margin:0 0 var(--space-1);font-family:var(--font-serif);font-size:1.05rem;font-weight:var(--font-weight-semibold);color:var(--color-text)}.product-tour-body{margin:0 0 var(--space-3);font-size:var(--font-size-sm);color:var(--color-text-muted);line-height:1.5}.product-tour-actions{justify-content:flex-end;align-items:center;gap:var(--space-2);display:flex}.product-tour-skip{padding:var(--space-1) var(--space-2);font-size:var(--font-size-sm);color:var(--color-text-muted);cursor:pointer;background:0 0;border:none}.product-tour-skip:hover{color:var(--color-text)}.product-tour-next{background-color:var(--color-accent);color:var(--color-accent-contrast);border-radius:var(--radius-sm);padding:var(--space-1) var(--space-3);font-size:var(--font-size-sm);font-weight:var(--font-weight-medium);cursor:pointer;border:none;transition:background-color .15s}.product-tour-next:hover{background-color:var(--color-accent-hover)}.message-list{max-width:760px;padding:0 var(--space-6) var(--space-4);flex-direction:column;margin:0 auto;display:flex}.transcript-entry{column-gap:var(--space-3);padding:var(--space-5) 0;border-top:1px solid var(--color-border-2);grid-template-columns:28px minmax(0,1fr);display:grid}.transcript-entry:first-child{padding-top:var(--space-1);border-top:none}.transcript-gutter{flex-direction:column;align-items:flex-start;padding-top:3px;display:flex;overflow:visible}.transcript-mark{color:var(--color-accent);flex-shrink:0}.transcript-time{font-size:var(--font-size-2xs);color:var(--color-text-faint);white-space:nowrap;opacity:0;margin-top:2px;transition:opacity .15s}.transcript-entry:hover .transcript-time,.transcript-entry:focus-within .transcript-time{opacity:1}.transcript-body{min-width:0;line-height:var(--line-height-relaxed);border-left:2px solid var(--color-border-2);padding-left:var(--space-4);position:relative}.transcript-entry--user .transcript-body{background-color:var(--color-accent-tint);border-left-color:var(--color-accent);border-radius:0 var(--radius-sm) var(--radius-sm) 0;padding:var(--space-3) var(--space-4)}.transcript-entry--assistant .transcript-body{border-left-color:var(--color-border-2)}.transcript-body--error{border-left-color:var(--color-danger);background-color:var(--color-danger-tint);color:var(--color-danger)}.transcript-entry--editing .transcript-body{border-left-color:var(--color-accent);border-left-width:3px}.transcript-body--streaming:before{content:"";background-color:var(--color-accent);opacity:0;will-change:opacity;width:2px;animation:2.4s ease-in-out infinite transcript-streaming-pulse;position:absolute;top:0;bottom:0;left:-2px}@keyframes transcript-streaming-pulse{0%,to{opacity:0}50%{opacity:1}}.message-content{font-size:var(--font-size-base);line-height:var(--line-height-relaxed);word-wrap:break-word}.message-content>*{animation:.35s ease-out both message-block-reveal}@keyframes message-block-reveal{0%{opacity:0;transform:translateY(3px)}to{opacity:1;transform:none}}.message-content>:first-child{margin-top:0}.message-content>:last-child{margin-bottom:0}.message-content p{margin:.6em 0}.message-content ul,.message-content ol{margin:.4em 0;padding-left:1.4em}.message-content table{border-collapse:collapse;margin:.6em 0;font-size:.9em}.message-content th,.message-content td{border:1px solid var(--color-border);padding:4px 10px}.message-content a{color:inherit;text-decoration:underline}.message-content code:not(pre code){font-size:.88em;font-family:var(--font-mono);background-color:#7f7f7f2e;border-radius:4px;padding:.1em .35em}.thinking-indicator{align-items:center;gap:var(--space-2);margin-top:var(--space-1);contain:paint;display:inline-flex}.thinking-indicator-text{font-family:var(--font-serif);font-style:italic;font-size:var(--font-size-sm);background:linear-gradient(100deg, var(--color-text-muted) 40%, var(--color-accent) 50%, var(--color-text-muted) 60%);color:#0000;background-size:250% 100%;-webkit-background-clip:text;background-clip:text;animation:2.2s linear infinite thinking-text-shimmer;transform:translateZ(0)}.thinking-indicator-dots{align-items:center;gap:3px;height:8px;display:inline-flex}.thinking-indicator-dots span{background-color:var(--color-accent);opacity:.5;will-change:transform, opacity;border-radius:50%;width:4px;height:4px;animation:.9s ease-in-out infinite streaming-bounce}.thinking-indicator-dots span:nth-child(2){animation-delay:.12s}.thinking-indicator-dots span:nth-child(3){animation-delay:.24s}@keyframes thinking-text-shimmer{0%{background-position:200% 0}to{background-position:-50% 0}}@keyframes streaming-bounce{0%,80%,to{opacity:.35;transform:translateY(0)}40%{opacity:.9;transform:translateY(-3px)}}.tool-activity{align-items:flex-start;gap:var(--space-1);margin-bottom:var(--space-2);flex-direction:column;display:flex}.tool-activity-chip{align-items:center;gap:var(--space-2);padding:3px var(--space-2) 3px 3px;border-radius:var(--radius-full);background-color:var(--color-accent-tint,var(--color-surface-2));border:1px solid var(--color-border-2);color:var(--color-text-muted);font-size:var(--font-size-xs);font-family:var(--font-serif);opacity:0;font-style:italic;line-height:1.4;transition:opacity .25s,background-color .25s,border-color .25s;animation:.3s ease-out both tool-activity-chip-enter;display:inline-flex}@keyframes tool-activity-chip-enter{0%{opacity:0;transform:translateY(2px)scale(.97)}to{opacity:1;transform:none}}.tool-activity-chip--done{opacity:.7}.tool-activity-icon{border:2px solid var(--color-accent);will-change:transform;border-top-color:#0000;border-radius:50%;flex-shrink:0;width:14px;height:14px;transition:border-color .2s,background-color .2s;animation:.7s linear infinite tool-activity-spin}.tool-activity-chip--done .tool-activity-icon{background-color:var(--color-success,var(--color-accent));border:none;animation:.3s ease-out both tool-activity-check-pop;position:relative}.tool-activity-chip--done .tool-activity-icon:after{content:"";border-right:2px solid var(--color-accent-contrast,#fff);border-bottom:2px solid var(--color-accent-contrast,#fff);width:4px;height:7px;position:absolute;top:2px;left:4px;transform:rotate(45deg)}@keyframes tool-activity-spin{to{transform:rotate(360deg)}}@keyframes tool-activity-check-pop{0%{transform:scale(.4)}to{transform:scale(1)}}.tool-activity-chip--verified{border-color:var(--color-success);background-color:var(--color-success-tint)}.tool-activity-chip--verified.tool-activity-chip--done{opacity:.92}.tool-activity-chip--verified .tool-activity-icon{border-color:var(--color-success)}.tool-activity-chip--verified.tool-activity-chip--done .tool-activity-icon{background-color:var(--color-success)}.tool-activity-verified-badge{font-family:var(--font-sans,sans-serif);letter-spacing:.02em;text-transform:uppercase;color:var(--color-success);border:1px solid var(--color-success);border-radius:var(--radius-full);align-items:center;margin-left:2px;padding:1px 6px;font-size:10px;font-style:normal;font-weight:600;display:inline-flex}.plan-chip{border-color:var(--color-info,var(--color-border-2));color:var(--color-info,var(--color-text-muted))}.plan-chip .plan-chip-icon{border-color:var(--color-info,var(--color-accent));border-top-color:#0000}.plan-chip.tool-activity-chip--done .plan-chip-icon{background-color:var(--color-info,var(--color-accent))}.plan-chip--live .plan-chip-text{background:linear-gradient(100deg, var(--color-info,var(--color-text-muted)) 40%, var(--color-accent) 50%, var(--color-info,var(--color-text-muted)) 60%);color:#0000;background-size:250% 100%;-webkit-background-clip:text;background-clip:text;animation:2.2s linear infinite thinking-text-shimmer}.reasoning-block{padding:var(--space-2) var(--space-3);border-radius:var(--radius-md);border:1px solid var(--color-border-2);background-color:var(--color-surface-2);flex-direction:column;gap:2px;animation:.3s ease-out both tool-activity-chip-enter;display:flex}.reasoning-block-label{font-size:var(--font-size-xs);font-weight:var(--font-weight-medium)}.reasoning-block-text{color:var(--color-text-faint);font-family:var(--font-serif);font-style:italic;font-size:var(--font-size-sm);margin:0;line-height:1.5}.attached-images{gap:var(--space-2);margin-bottom:var(--space-2);flex-wrap:wrap;display:flex}.attached-image-thumb{border-radius:var(--radius-md);border:1px solid var(--color-border-2);max-width:220px;max-height:220px;box-shadow:var(--shadow-sm);object-fit:cover;display:block}.attached-image-chip{padding:var(--space-2) var(--space-3);border-radius:var(--radius-md);background-color:var(--color-surface-2);border:1px dashed var(--color-border-2);color:var(--color-text-faint);font-size:var(--font-size-xs);align-items:center;font-style:italic;display:inline-flex}.attached-documents{gap:var(--space-2);margin-top:var(--space-2);flex-wrap:wrap;display:flex}.attached-document-chip{align-items:center;gap:var(--space-3);width:260px;max-width:100%;padding:var(--space-2) var(--space-3);border-radius:var(--radius-lg);background-color:var(--color-surface);border:1px solid var(--color-border-2);box-shadow:var(--shadow-sm);color:var(--color-text);text-align:left;cursor:pointer;font-family:inherit;transition:background-color .15s,border-color .15s,box-shadow .15s;display:inline-flex}.attached-document-chip:hover{background-color:var(--color-surface-2);border-color:var(--color-accent)}.attached-document-chip--active{background-color:var(--color-accent-tint);border-color:var(--color-accent)}.attached-document-chip-badge{border-radius:var(--radius-md);background-color:var(--color-accent);width:40px;height:40px;color:var(--color-accent-contrast);font-size:var(--font-size-2xs);font-weight:var(--font-weight-semibold);letter-spacing:.02em;flex-shrink:0;justify-content:center;align-items:center;display:flex}.attached-document-chip-body{flex-direction:column;gap:1px;min-width:0;display:flex}.attached-document-chip-name{text-overflow:ellipsis;white-space:nowrap;font-size:var(--font-size-sm);font-weight:var(--font-weight-medium);overflow:hidden}.attached-document-chip-type{text-overflow:ellipsis;white-space:nowrap;font-size:var(--font-size-2xs);color:var(--color-text-faint);overflow:hidden}.message-stopped-note{margin-top:var(--space-2);font-size:var(--font-size-xs);color:var(--color-text-faint);font-style:italic}.message-actions{align-items:center;gap:var(--space-2);margin-top:var(--space-2);opacity:0;transition:opacity var(--transition-fast,.12s) ease;display:flex}.transcript-entry:hover .message-actions,.message-actions:focus-within{opacity:1}.message-actions:has(.message-listen--playing){opacity:1}.message-listen{border:1px solid var(--color-border);border-radius:var(--radius-full);color:var(--color-text-muted);font-family:inherit;font-size:var(--font-size-xs);padding:2px var(--space-3);cursor:pointer;background:0 0;align-items:center;gap:5px;display:flex}.message-listen:hover:not(:disabled){border-color:var(--color-accent);color:var(--color-accent)}.message-listen:disabled{opacity:.6;cursor:default}.message-listen--playing{border-color:var(--color-accent);color:var(--color-accent)}.message-listen--stop{color:var(--color-text-muted)}.message-listen-note{font-size:var(--font-size-xs);color:var(--color-text-faint)}.suggested-actions{gap:var(--space-2);margin-top:var(--space-3);flex-wrap:wrap;animation:.35s ease-out both message-block-reveal;display:flex}.suggested-action-btn{align-items:center;gap:var(--space-2);padding:var(--space-2) var(--space-3);border-radius:var(--radius-full);border:1px solid var(--color-accent);background-color:var(--color-accent-tint);color:var(--color-accent);font-size:var(--font-size-sm);font-weight:var(--font-weight-medium);cursor:pointer;transition:background-color .15s,color .15s,transform .15s;display:inline-flex}.suggested-action-btn:hover{background-color:var(--color-accent);color:var(--color-accent-contrast)}.suggested-action-btn:active{transform:scale(.97)}.suggested-action-arrow{transition:transform .15s}.suggested-action-btn:hover .suggested-action-arrow{transform:translate(2px)}.composer-stop{background-color:var(--color-danger);flex-shrink:0}.composer-stop:hover{background-color:var(--color-danger);filter:brightness(1.1)}.composer-stop-icon{background-color:currentColor;border-radius:2px;width:9px;height:9px}.code-block{border-radius:var(--radius-md);background-color:#0d0d0d;margin:.7em 0;font-size:.85em;overflow:hidden}.code-block__header{padding:6px var(--space-3);color:#9a9a9a;background-color:#161616;justify-content:space-between;align-items:center;font-size:.78em;display:flex}.code-block__lang{text-transform:uppercase;letter-spacing:.05em}.code-block__copy{color:#c2c2c2;border-radius:var(--radius-sm);background:0 0;border:none;padding:2px 8px;font-size:.85em}.code-block__copy:hover{color:#fff;background-color:#ffffff1a}.code-block pre{padding:var(--space-3) 14px;margin:0;overflow-x:auto}.code-block pre code{font-family:var(--font-mono);background:0 0}.plotly-figure{margin:var(--space-2) 0;border:1px solid var(--color-border);border-radius:var(--radius-md);background-color:var(--color-surface);min-width:420px;overflow:hidden}.plotly-figure--error{padding:var(--space-3) 14px;color:var(--color-danger);font-size:var(--font-size-sm)}.math-steps{margin:var(--space-2) 0;border:1px solid var(--color-border);border-radius:var(--radius-md);background-color:var(--color-surface);padding:var(--space-3) 14px;gap:var(--space-3);flex-direction:column;display:flex}.math-steps--error{color:var(--color-danger);font-size:var(--font-size-sm);padding:var(--space-2) var(--space-3)}.math-steps__step{padding-bottom:var(--space-2);border-bottom:1px solid var(--color-border-2)}.math-steps__step:last-child{border-bottom:none;padding-bottom:0}.math-steps__step-number{margin-bottom:var(--space-1)}.math-steps__reveal{align-self:flex-start}.options-picker{margin:var(--space-2) 0;border:1px solid var(--color-border);border-radius:var(--radius-md);background-color:var(--color-surface);padding:var(--space-3) 14px;gap:var(--space-3);flex-direction:column;display:flex}.options-picker--error{color:var(--color-danger);font-size:var(--font-size-sm);padding:var(--space-2) var(--space-3)}.options-picker__question{font-weight:var(--font-weight-semibold)}.options-picker__list{gap:var(--space-2);flex-direction:column;display:flex}.options-picker__option{text-align:left;border:1px solid var(--color-border);border-radius:var(--radius-md);background-color:var(--color-surface);width:100%;padding:var(--space-3);color:inherit;cursor:pointer;font-family:inherit;transition:border-color .15s,background-color .15s;display:block}.options-picker__option:hover:not([aria-disabled=true]){border-color:var(--color-accent);background-color:var(--color-accent-tint)}.options-picker__option[aria-disabled=true]{cursor:default}.options-picker__option--recommended{border-color:var(--color-accent)}.options-picker__option--picked{border-color:var(--color-accent);background-color:var(--color-accent-tint)}.options-picker__option-head{align-items:center;gap:var(--space-2);display:flex}.options-picker__option-label{font-weight:var(--font-weight-medium)}.options-picker__option-description{margin-top:var(--space-1);font-size:var(--font-size-sm);color:var(--color-text-muted)}.options-picker__badge{font-size:var(--font-size-2xs);font-weight:var(--font-weight-semibold);text-transform:uppercase;letter-spacing:.06em;color:var(--color-accent);background-color:var(--color-accent-tint);border-radius:var(--radius-full);padding:2px var(--space-2)}.options-picker__picked-mark{color:var(--color-accent);font-weight:var(--font-weight-bold);margin-left:auto}.options-picker__checkbox{border:1px solid var(--color-border);background-color:var(--color-surface);border-radius:3px;flex-shrink:0;width:14px;height:14px}.options-picker__checkbox--checked{background-color:var(--color-accent);border-color:var(--color-accent)}.options-picker__confirm{align-self:flex-start}.paper-plan-card{margin:var(--space-2) 0;border:1px solid var(--color-border);border-radius:var(--radius-md);background-color:var(--color-surface);padding:var(--space-4);gap:var(--space-3);flex-direction:column;display:flex}.paper-plan-card--error{color:var(--color-danger);font-size:var(--font-size-sm);padding:var(--space-2) var(--space-3)}.paper-plan-card__header{align-items:center;gap:var(--space-3);display:flex}.paper-plan-card__style-badge{font-size:var(--font-size-2xs);font-weight:var(--font-weight-semibold);letter-spacing:.06em;color:var(--color-accent-contrast);background-color:var(--color-accent);border-radius:var(--radius-full);padding:3px var(--space-3);flex-shrink:0}.paper-plan-card__title{font-family:var(--font-serif);font-size:var(--font-size-lg);margin:0}.paper-plan-card__abstract{color:var(--color-text-muted);line-height:var(--line-height-relaxed);margin:0}.paper-plan-card__sections{gap:var(--space-3);flex-direction:column;margin:0;padding-left:1.3em;display:flex}.paper-plan-card__section-heading{font-weight:var(--font-weight-semibold)}.paper-plan-card__section-summary{font-size:var(--font-size-sm);color:var(--color-text-muted);margin-top:2px}.paper-plan-card__sources ul{margin:var(--space-1) 0 0;font-size:var(--font-size-sm);color:var(--color-text-muted);padding-left:1.2em}.paper-plan-card__actions{gap:var(--space-2);margin-top:var(--space-1);flex-wrap:wrap;display:flex}.paper-plan-card__stale-note,.paper-plan-card__locked-note{font-size:var(--font-size-xs);color:var(--color-text-faint);font-style:italic}.step-check{margin:var(--space-2) 0;border:1px solid var(--color-accent);border-radius:var(--radius-md);background-color:var(--color-accent-tint);padding:var(--space-3) 14px;gap:var(--space-2);flex-direction:column;display:flex}.step-check--error{color:var(--color-danger);font-size:var(--font-size-sm);padding:var(--space-2) var(--space-3);border-color:var(--color-border);background-color:var(--color-surface)}.step-check__label{font-size:var(--font-size-2xs);font-weight:var(--font-weight-semibold);text-transform:uppercase;letter-spacing:.06em;color:var(--color-accent)}.step-check__prompt{font-weight:var(--font-weight-medium)}.step-check__form{align-items:flex-start;gap:var(--space-2);display:flex}.step-check__answer{font-size:var(--font-size-sm);color:var(--color-text-muted);background-color:var(--color-surface);border:1px solid var(--color-border);border-radius:var(--radius-md);padding:var(--space-2) var(--space-3)}.step-check__answer .message-content>:first-child{margin-top:0}.step-check__answer .message-content>:last-child{margin-bottom:0}.math-input{align-items:stretch;gap:var(--space-1);flex:1;min-width:0;display:flex}.math-input__field-wrap{flex:1;min-width:0;display:flex}.math-input__field{border:1px solid var(--color-border);border-radius:var(--radius-md);background-color:var(--color-surface);min-width:0;padding:6px var(--space-3);font-size:var(--font-size-sm);--caret-color:var(--color-accent);--primary-color:var(--color-accent);--selection-background-color:var(--color-accent-tint);--selection-color:inherit;--placeholder-color:var(--color-text-faint);flex:1}.math-input__field:focus,.math-input__field:focus-within{border-color:var(--color-accent);box-shadow:var(--focus-ring);outline:none}.math-input__field[disabled]{opacity:.6}.math-input__keyboard-toggle{border:1px solid var(--color-border);border-radius:var(--radius-md);background-color:var(--color-surface);color:var(--color-text-muted);font-size:var(--font-size-lg);padding:0 var(--space-2);cursor:pointer;flex-shrink:0;line-height:1}.math-input__keyboard-toggle:hover:not(:disabled){border-color:var(--color-accent);color:var(--color-accent)}.math-input__keyboard-toggle:disabled{opacity:.5;cursor:default}.checkpoint{margin:var(--space-2) 0;border:1px solid var(--color-info);border-radius:var(--radius-md);background-color:var(--color-info-tint);padding:var(--space-3) 14px;gap:var(--space-2);flex-direction:column;display:flex}.checkpoint--error{color:var(--color-danger);font-size:var(--font-size-sm);padding:var(--space-2) var(--space-3);border-color:var(--color-border);background-color:var(--color-surface)}.checkpoint__label{font-size:var(--font-size-2xs);font-weight:var(--font-weight-semibold);text-transform:uppercase;letter-spacing:.06em;color:var(--color-info)}.checkpoint__question{font-weight:var(--font-weight-medium)}.checkpoint__form{gap:var(--space-2);display:flex}.checkpoint__input{border:1px solid var(--color-border);border-radius:var(--radius-md);background-color:var(--color-surface);min-width:0;color:inherit;font-family:inherit;font-size:var(--font-size-sm);padding:var(--space-2) var(--space-3);flex:1}.checkpoint__input:focus{border-color:var(--color-info);box-shadow:var(--focus-ring);outline:none}.checkpoint__answer{font-size:var(--font-size-sm);color:var(--color-text-muted);background-color:var(--color-surface);border:1px solid var(--color-border);border-radius:var(--radius-md);padding:var(--space-2) var(--space-3)}.newton-note{margin:var(--space-2) 0;border:1px solid var(--color-success);border-radius:var(--radius-md);background-color:var(--color-success-tint);padding:var(--space-3) 14px;gap:var(--space-2);flex-direction:column;display:flex}.newton-note--error{color:var(--color-danger);font-size:var(--font-size-sm);padding:var(--space-2) var(--space-3);border-color:var(--color-border);background-color:var(--color-surface)}.newton-note__label{font-size:var(--font-size-2xs);font-weight:var(--font-weight-semibold);text-transform:uppercase;letter-spacing:.06em;color:var(--color-success)}.newton-note__text>:first-child{margin-top:0}.newton-note__text>:last-child{margin-bottom:0}.plotly-figure__sliders{margin-top:var(--space-2);padding:var(--space-2) 14px;gap:var(--space-2);border:1px solid var(--color-border);border-radius:var(--radius-md);background-color:var(--color-surface);flex-direction:column;display:flex}.plotly-figure__slider-row{align-items:center;gap:var(--space-3);display:flex}.plotly-figure__slider-label{font-size:var(--font-size-sm);font-weight:var(--font-weight-medium);white-space:nowrap}.plotly-figure__slider-row input[type=range]{flex:1}.plotly-figure__slider-value{font-size:var(--font-size-sm);color:var(--color-text-muted);font-variant-numeric:tabular-nums;text-align:right;min-width:3.5em}.math-keyboard-dock{flex-shrink:0;height:0;transition:height .2s;overflow:hidden}.math-keyboard-dock--visible{border-top:1px solid var(--color-border-2);height:min(320px,42vh);overflow:auto}.composer{width:100%;max-width:720px;padding:var(--space-2) var(--space-5) var(--space-4);flex-shrink:0;margin:0 auto}.composer-editing-banner{align-items:center;gap:var(--space-2);padding:var(--space-1) var(--space-2);margin-bottom:var(--space-2);border-radius:var(--radius-sm);background-color:var(--color-accent-tint);color:var(--color-accent);font-size:var(--font-size-xs);display:flex}.composer-editing-label{font-weight:600}.composer-editing-error{color:var(--color-danger);flex:1}.composer-editing-cancel{color:inherit;font-size:var(--font-size-xs);background:0 0;border:none;margin-left:auto;padding:0;font-weight:600;text-decoration:underline}.composer-editing-cancel:hover{opacity:.8}.composer-selection-spinner{border:2px solid;border-right-color:#0000;border-radius:50%;flex-shrink:0;width:10px;height:10px;animation:.8s linear infinite tool-activity-spin}.composer-row{align-items:flex-end;gap:var(--space-2);border:1px solid var(--color-border);border-radius:var(--radius-md);padding:var(--space-2) var(--space-2) var(--space-2) var(--space-3);background-color:var(--color-surface);transition:border-color .15s,box-shadow .15s;display:flex}.composer-row:focus-within{border-color:var(--color-accent);box-shadow:var(--focus-ring)}.composer-input{resize:none;color:var(--color-text);font-size:var(--font-size-base);font-family:inherit;line-height:var(--line-height-relaxed);background-color:#0000;border:none;flex:1;max-height:220px;padding:4px 0}.composer-input:focus{outline:none}.composer-input:focus-visible{box-shadow:none;outline:none}.composer-input:disabled{opacity:.6}.composer-input::placeholder{color:var(--color-text-faint)}.composer-send{flex-shrink:0}.composer-file-input{display:none}.composer-attach-wrap{flex-shrink:0;align-self:flex-end;position:relative}.composer-attach{width:32px;height:32px;color:var(--color-text-muted);border-radius:var(--radius-sm);background:0 0;border:none;flex-shrink:0;justify-content:center;align-items:center;padding:0;font-size:18px;line-height:1;display:flex}.composer-attach:hover:not(:disabled){background-color:var(--color-surface-2);color:var(--color-text)}.composer-attach:disabled{opacity:.5;cursor:default}.composer-attach-menu,.composer-document-picker{z-index:20;background-color:var(--color-surface);border:1px solid var(--color-border);border-radius:var(--radius-md);box-shadow:var(--shadow-md);position:absolute;bottom:calc(100% + 6px);left:0}.composer-attach-menu{min-width:230px;padding:var(--space-1);flex-direction:column;display:flex}.composer-attach-menu-item{align-items:center;gap:var(--space-2);text-align:left;color:var(--color-text);font-family:inherit;font-size:var(--font-size-sm);padding:var(--space-2) var(--space-3);border-radius:var(--radius-sm);cursor:pointer;background:0 0;border:none;display:flex}.composer-attach-menu-item:hover:not(:disabled){background-color:var(--color-surface-2)}.composer-attach-menu-item:disabled{opacity:.55;cursor:default}.composer-document-picker{width:260px;max-height:280px;padding:var(--space-2);overflow-y:auto}.composer-document-picker-header{font-size:var(--font-size-xs);font-weight:var(--font-weight-medium);color:var(--color-text-muted);padding:var(--space-1) var(--space-2) var(--space-2)}.composer-document-picker-item{text-align:left;border-radius:var(--radius-sm);width:100%;padding:var(--space-2);cursor:pointer;background:0 0;border:none;font-family:inherit;display:block}.composer-document-picker-item:hover,.composer-document-picker-item--attached{background-color:var(--color-surface-2)}.composer-document-picker-item--attached .composer-document-picker-date{color:var(--color-accent,var(--color-text-muted));font-weight:var(--font-weight-medium)}.composer-document-picker-name{font-size:var(--font-size-sm);color:var(--color-text);text-overflow:ellipsis;white-space:nowrap;display:block;overflow:hidden}.composer-document-picker-date{font-size:var(--font-size-2xs);color:var(--color-text-faint);margin-top:1px;display:block}.composer-attachments{gap:var(--space-1);margin-bottom:var(--space-2);flex-direction:column;display:flex}.composer-attachment{justify-content:space-between;align-items:center;gap:var(--space-2);background-color:var(--color-surface-2);border:1px solid var(--color-border);border-radius:var(--radius-sm);padding:5px var(--space-2);font-size:var(--font-size-sm);color:var(--color-text);display:flex}.composer-attachment-name{text-overflow:ellipsis;white-space:nowrap;overflow:hidden}.composer-attachment-remove{color:var(--color-text-faint);border-radius:var(--radius-sm);background:0 0;border:none;flex-shrink:0;padding:2px 5px;font-size:14px;line-height:1}.composer-attachment-remove:hover{background-color:var(--color-danger-tint);color:var(--color-danger)}.composer-attachment-error{color:var(--color-danger);font-size:var(--font-size-xs);margin-bottom:var(--space-2)}.composer-mic{min-width:32px;height:32px;color:var(--color-text-muted);font-family:inherit;font-size:var(--font-size-xs);border-radius:var(--radius-sm);background:0 0;border:none;flex-shrink:0;justify-content:center;align-self:flex-end;align-items:center;gap:5px;padding:0 8px;line-height:1;display:flex}.composer-mic-icon{font-size:17px}.composer-mic:hover:not(:disabled){background-color:var(--color-surface-2);color:var(--color-text)}.composer-mic:disabled{opacity:.5;cursor:default}.composer-mic--recording,.composer-mic--recording:hover:not(:disabled){background-color:var(--color-danger-tint);color:var(--color-danger)}.composer-mic-dot{border-radius:var(--radius-full);background-color:var(--color-danger);will-change:opacity;width:7px;height:7px;animation:1.4s ease-in-out infinite composer-mic-pulse}@keyframes composer-mic-pulse{0%,to{opacity:1}50%{opacity:.35}}.composer-voice-error{align-items:center;gap:var(--space-2);color:var(--color-text-muted);font-size:var(--font-size-xs);margin-bottom:var(--space-2);display:flex}.composer-voice-error-dismiss{color:inherit;font-size:var(--font-size-sm);cursor:pointer;background:0 0;border:none;padding:0 2px;line-height:1}.composer-hint{font-size:var(--font-size-xs);color:var(--color-text-faint);margin-top:var(--space-2)}.composer-controls{align-items:center;gap:var(--space-2);margin-bottom:var(--space-2);display:flex}.composer-learn-mode-toggle{align-items:center;gap:var(--space-1);font-size:var(--font-size-xs);color:var(--color-text-muted);display:inline-flex}.composer-learn-mode-toggle:has(.toggle--checked){color:var(--color-accent);font-weight:var(--font-weight-medium)}.composer-learn-mode-error{font-size:var(--font-size-xs);color:var(--color-danger)}.composer-conversation-practice-toggle{align-items:center;gap:var(--space-1);font-size:var(--font-size-xs);color:var(--color-text-muted);display:inline-flex}.composer-conversation-practice-toggle:has(.toggle--checked){color:var(--color-accent);font-weight:var(--font-weight-medium)}.composer-conversation-practice-language{margin-left:var(--space-1);font-size:var(--font-size-xs);color:inherit;background:var(--color-surface);border:1px solid var(--color-border);border-radius:var(--radius-sm);padding:1px var(--space-1)}.login-screen{background-color:var(--color-bg);width:100%;min-height:0;padding:var(--space-6);flex:1;justify-content:center;align-items:center;display:flex}.bootstrap-mark{color:var(--color-accent);will-change:opacity;animation:1.4s ease-in-out infinite bootstrap-pulse;display:flex}@keyframes bootstrap-pulse{0%,to{opacity:.45}50%{opacity:1}}.login-card{background-color:var(--color-surface);border:1px solid var(--color-border);border-radius:var(--radius-lg);width:100%;max-width:380px;box-shadow:var(--shadow-sm);padding:var(--space-8) var(--space-6)}.login-brand{align-items:center;gap:var(--space-3);margin-bottom:var(--space-2);display:flex}.login-brand-mark{border-radius:var(--radius-lg);background-color:var(--color-accent);width:40px;height:40px;color:var(--color-accent-contrast);box-shadow:var(--shadow-sm);justify-content:center;align-items:center;display:flex}.login-brand-name{font-family:var(--font-serif);font-variation-settings:"opsz" 34, "SOFT" 20;font-size:1.5rem;font-weight:var(--font-weight-semibold);letter-spacing:-.01em}.login-tagline{color:var(--color-text-muted);font-size:var(--font-size-md);line-height:var(--line-height-relaxed);margin:0 0 var(--space-6)}.login-hint{color:var(--color-text-muted);font-size:var(--font-size-sm);line-height:var(--line-height-relaxed);margin:var(--space-3) 0 0;text-align:center}.login-submit{width:100%;font-size:var(--font-size-base);margin-top:var(--space-1);padding:11px}.login-create-account{width:100%;margin-top:var(--space-5);padding-top:var(--space-4);border:none;border-top:1px solid var(--color-border);color:var(--color-accent);font-size:var(--font-size-sm);font-weight:var(--font-weight-medium);text-align:center;cursor:pointer;background:0 0;display:block}.login-create-account:hover{color:var(--color-accent-hover);text-decoration:underline}.login-create-account:disabled{color:var(--color-text-faint);cursor:default;text-decoration:none}.context-menu{z-index:1000;background-color:var(--color-surface);border:1px solid var(--color-border);border-radius:var(--radius-md);min-width:170px;box-shadow:var(--shadow-md), 0 1px 3px #00000014;padding:var(--space-1);flex-direction:column;gap:1px;display:flex;position:fixed}.context-menu-item{text-align:left;padding:7px var(--space-2);border-radius:var(--radius-sm);color:var(--color-text);font-size:var(--font-size-sm);background:0 0;border:none}.context-menu-item:hover:not(:disabled){background-color:var(--color-surface-2)}.context-menu-item:disabled{color:var(--color-text-faint);cursor:default}.context-menu-item--danger:not(:disabled){color:var(--color-danger)}.context-menu-item--danger:hover:not(:disabled){background-color:var(--color-danger-tint)}.flashcards-tabs{align-items:center;gap:var(--space-1);margin-bottom:var(--space-4);border-bottom:1px solid var(--color-border);display:flex}.flashcards-toolbar-btn{margin-bottom:var(--space-1)}.flashcards-toolbar-btn--first{margin-left:auto}.flashcards-tab{color:var(--color-text-muted);font-size:var(--font-size-sm);background:0 0;border:none;border-bottom:2px solid #0000;margin-bottom:-1px;padding:6px 4px 8px}.flashcards-tab:hover{color:var(--color-text)}.flashcards-tab--active{color:var(--color-accent);border-bottom-color:var(--color-accent);font-weight:var(--font-weight-medium)}.flashcard-review{gap:var(--space-4);flex-direction:column;display:flex}.flashcard-box{background-color:var(--color-surface-2);border:1px solid var(--color-border);border-radius:var(--radius-md);padding:var(--space-6) var(--space-4);text-align:center;justify-content:center;align-items:center;gap:var(--space-2);cursor:pointer;flex-direction:column;min-height:120px;transition:border-color .15s;display:flex}.flashcard-box:hover{border-color:var(--color-accent)}.flashcard-box-label{font-size:var(--font-size-2xs);text-transform:uppercase;letter-spacing:.05em;color:var(--color-text-faint)}.flashcard-box-text{font-size:var(--font-size-md);color:var(--color-text);line-height:var(--line-height-relaxed);white-space:pre-wrap}.flashcard-box-hint{font-size:var(--font-size-xs);color:var(--color-text-faint)}.flashcard-ratings{gap:var(--space-2);grid-template-columns:repeat(4,1fr);display:grid}.flashcard-rate{border:1px solid var(--color-border);background-color:var(--color-surface);color:var(--color-text);border-radius:var(--radius-sm);padding:var(--space-2) 4px;font-size:var(--font-size-sm);font-weight:var(--font-weight-medium);transition:background-color .15s,border-color .15s,color .15s}.flashcard-rate:disabled{opacity:.6;cursor:default}.flashcard-rate--again:hover:not(:disabled){background-color:var(--color-danger-tint);border-color:var(--color-danger);color:var(--color-danger)}.flashcard-rate--hard:hover:not(:disabled){background-color:var(--color-warning-tint);border-color:var(--color-warning);color:var(--color-warning)}.flashcard-rate--good:hover:not(:disabled){background-color:var(--color-accent-tint);border-color:var(--color-accent);color:var(--color-accent)}.flashcard-rate--easy:hover:not(:disabled){background-color:var(--color-success-tint);border-color:var(--color-success);color:var(--color-success)}.flashcard-box--production{cursor:default}.flashcard-box--production:hover{border-color:var(--color-border)}.flashcard-production-form{gap:var(--space-2);display:flex}.flashcard-production-input{background-color:var(--color-surface);border:1px solid var(--color-border);border-radius:var(--radius-sm);padding:var(--space-2) var(--space-3);color:var(--color-text);font-size:var(--font-size-md);flex:1}.flashcard-production-input:focus{border-color:var(--color-accent);outline:none}.flashcard-production-input:disabled{opacity:.8}.flashcard-grading{align-items:flex-start;gap:var(--space-2);border:1px solid var(--color-border);border-radius:var(--radius-sm);padding:var(--space-3);border-left-width:3px;flex-direction:column;display:flex}.flashcard-grading--correct{background-color:var(--color-success-tint);border-left-color:var(--color-success)}.flashcard-grading--close{background-color:var(--color-warning-tint);border-left-color:var(--color-warning)}.flashcard-grading--wrong{background-color:var(--color-danger-tint);border-left-color:var(--color-danger)}.flashcard-grading-verdict{font-weight:var(--font-weight-medium);color:var(--color-text)}.flashcard-grading-expected{font-size:var(--font-size-sm);color:var(--color-text-muted)}.progress-stats{justify-content:space-between;gap:var(--space-3);margin-bottom:var(--space-2);display:flex}.progress-stat{flex-direction:column;gap:2px;display:flex}.progress-stat-value{font-size:var(--font-size-md);font-weight:var(--font-weight-semibold);color:var(--color-text)}.progress-stat-label{font-size:var(--font-size-2xs);color:var(--color-text-faint)}.progress-bar-track{border-radius:var(--radius-full);background-color:var(--color-surface-3);height:5px;overflow:hidden}.progress-bar-fill{background-color:var(--color-accent);border-radius:var(--radius-full);height:100%;transition:width .2s}.progress-bar-caption{font-size:var(--font-size-2xs);color:var(--color-text-faint);margin-top:5px}.progress-detail-grid{gap:var(--space-3);margin-top:var(--space-3);padding-top:var(--space-3);border-top:1px solid var(--color-border-2);grid-template-columns:repeat(2,1fr);display:grid}.progress-detail-item{flex-direction:column;gap:2px;display:flex}.progress-detail-value{font-size:var(--font-size-md);font-weight:var(--font-weight-semibold);color:var(--color-text)}.progress-detail-label{font-size:var(--font-size-2xs);color:var(--color-text-faint)}.exam-list-title{text-align:left;min-width:0;color:inherit;border-radius:var(--radius-sm);background:0 0;border:none;flex:1;padding:0}.exam-taking{gap:var(--space-4);flex-direction:column;display:flex}.exam-score-banner{border-radius:var(--radius-md);padding:var(--space-3);font-size:var(--font-size-base);font-weight:var(--font-weight-semibold);text-align:center}.exam-score-banner--good{background-color:var(--color-success-tint);color:var(--color-success)}.exam-score-banner--needs-review{background-color:var(--color-warning-tint);color:var(--color-warning)}.exam-question{gap:var(--space-2);flex-direction:column;display:flex}.exam-question-text{font-size:var(--font-size-sm);font-weight:var(--font-weight-medium);color:var(--color-text);line-height:var(--line-height-relaxed)}.exam-choices{gap:var(--space-2);flex-direction:column;display:flex}.exam-choice{text-align:left;border:1px solid var(--color-border);background-color:var(--color-surface-2);color:var(--color-text);border-radius:var(--radius-sm);padding:var(--space-2) var(--space-3);font-size:var(--font-size-sm);line-height:var(--line-height-normal);transition:border-color .15s,background-color .15s}.exam-choice:hover:not(:disabled){border-color:var(--color-accent);background-color:var(--color-accent-tint)}.exam-choice:disabled{cursor:default}.exam-choice--selected{border-color:var(--color-accent);background-color:var(--color-accent-tint)}.exam-choice--correct{border-color:var(--color-success);background-color:var(--color-success-tint);color:var(--color-success)}.exam-choice--wrong{border-color:var(--color-danger);background-color:var(--color-danger-tint);color:var(--color-danger)}.exam-explanation{font-size:var(--font-size-xs);color:var(--color-text-muted);line-height:var(--line-height-relaxed);padding:var(--space-2) var(--space-3);background-color:var(--color-surface-2);border-radius:var(--radius-sm)}.screen-snip{background-color:var(--color-surface);border:1px solid var(--color-border);border-radius:var(--radius-lg);box-shadow:var(--shadow-lg);padding:var(--space-5) var(--space-6);gap:var(--space-3);flex-direction:column;width:min(860px,92vw);max-height:88vh;display:flex}.screen-snip__header h2{font-family:var(--font-serif);font-variation-settings:"opsz" 26, "SOFT" 15;font-size:var(--font-size-xl);font-weight:var(--font-weight-semibold);color:var(--color-text);margin:0 0 4px}.screen-snip__header p{font-size:var(--font-size-sm);color:var(--color-text-muted);margin:0}.screen-snip__stage{border:1px solid var(--color-border);border-radius:var(--radius-md);background-color:var(--color-surface-2);cursor:crosshair;-webkit-user-select:none;user-select:none;max-height:60vh;position:relative;overflow:auto}.screen-snip__image{max-width:100%;height:auto;display:block}.screen-snip__selection{border:2px solid var(--color-accent);background-color:var(--color-accent-tint);pointer-events:none;position:absolute}.screen-snip__actions{justify-content:flex-end;gap:var(--space-2);display:flex}.snip-error-toast{bottom:var(--space-5);right:var(--space-5);z-index:200;align-items:center;gap:var(--space-3);box-shadow:var(--shadow-md);max-width:360px;display:flex;position:fixed}.snip-error-toast button{color:inherit;cursor:pointer;background:0 0;border:none;flex-shrink:0;font-size:1.1rem;line-height:1}.notepad-window{background-color:var(--color-bg);flex-direction:column;flex:1;min-height:0;display:flex}.notepad-window__body{min-width:0;padding:var(--space-4);flex:1;overflow-y:auto}.notepad-window__empty{text-align:center;padding:var(--space-6);font-family:var(--font-serif);font-variation-settings:"opsz" 14, "SOFT" 50;font-style:italic;font-size:var(--font-size-md);color:var(--color-text-muted);line-height:var(--line-height-relaxed);flex:1;justify-content:center;align-items:center;display:flex}.notepad-window__auth-wait{gap:var(--space-4);flex-direction:column}.notepad-window__auth-wait button{font-family:var(--font-sans);font-style:normal}.notepad-window__error{color:var(--color-danger);font-size:var(--font-size-sm);padding:0 var(--space-4)}.notepad-window__picker{gap:var(--space-3);min-height:0;padding:var(--space-3);flex-direction:column;flex:1;display:flex;overflow-y:auto}.notepad-window__new{align-self:stretch}.notepad-window__note-list{gap:var(--space-2);flex-direction:column;margin:0;padding:0;list-style:none;display:flex}.notepad-window__note-row{align-items:flex-start;gap:var(--space-1);flex-wrap:wrap;display:flex;position:relative}.notepad-window__note-item{text-align:left;border:1px solid var(--color-border);border-radius:var(--radius-md);background-color:var(--color-surface);min-width:0;padding:var(--space-2) var(--space-3);color:inherit;cursor:pointer;flex-direction:column;flex:1;align-items:flex-start;gap:2px;font-family:inherit;transition:border-color .15s,background-color .15s;display:flex}.notepad-window__note-item:hover{border-color:var(--color-accent);background-color:var(--color-accent-tint)}.notepad-window__note-rename-input{border:1px solid var(--color-accent);border-radius:var(--radius-md);background-color:var(--color-surface);min-width:0;color:inherit;font-family:inherit;font-weight:var(--font-weight-medium);padding:var(--space-2) var(--space-3);flex:1}.notepad-window__note-rename-input:focus{box-shadow:var(--focus-ring);outline:none}.notepad-window__note-title{font-weight:var(--font-weight-medium)}.notepad-window__note-updated{font-size:var(--font-size-xs);color:var(--color-text-faint)}.notepad-window__tag-icon-btn{border-radius:var(--radius-sm);padding:var(--space-1);cursor:pointer;color:var(--color-text-muted);background:0 0;border:1px solid #0000;flex-shrink:0;align-self:flex-start;font-size:.95rem;line-height:1}.notepad-window__tag-icon-btn:hover{background-color:var(--color-surface-2);color:var(--color-text)}.notepad-window__tag-pills{flex-wrap:wrap;gap:4px;display:flex}.notepad-window__tag-pills--header{padding:var(--space-2) var(--space-3) 0;align-items:center}.notepad-window__tag-pill{background-color:var(--color-accent-tint);color:var(--color-accent);font-size:var(--font-size-2xs);font-weight:var(--font-weight-medium);border-radius:var(--radius-full);padding:1px var(--space-2);align-items:center;gap:3px;display:inline-flex}.notepad-window__tag-pill--readonly{color:var(--color-text-muted);background-color:var(--color-surface-2)}.notepad-window__tag-remove{color:inherit;cursor:pointer;background:0 0;border:none;padding:0;font-size:.9em;line-height:1}.notepad-window__tag-empty{font-size:var(--font-size-2xs);color:var(--color-text-faint)}.notepad-window__tag-popover{gap:var(--space-2);border:1px solid var(--color-border);border-radius:var(--radius-md);background-color:var(--color-surface);width:100%;padding:var(--space-2) var(--space-3);margin:var(--space-1) var(--space-3) var(--space-2);flex-direction:column;display:flex}.notepad-window__tag-add{gap:var(--space-2);display:flex}.notepad-window__tag-input{border:1px solid var(--color-border);border-radius:var(--radius-sm);background-color:var(--color-bg);min-width:0;color:inherit;font-family:inherit;font-size:var(--font-size-sm);padding:var(--space-1) var(--space-2);flex:1}.notepad-window__tag-input:focus{border-color:var(--color-accent);outline:none}.notepad-window__editor{flex-direction:column;flex:1;min-height:0;display:flex;position:relative}.notepad-window__editor-header{align-items:center;gap:var(--space-2);padding:var(--space-2) var(--space-3);border-bottom:1px solid var(--color-border);display:flex}.notepad-window__back{white-space:nowrap;flex-shrink:0}.notepad-window__title-input{min-width:0;color:inherit;font-family:inherit;font-weight:var(--font-weight-semibold);font-size:var(--font-size-md);padding:var(--space-1) var(--space-2);border-radius:var(--radius-sm);background:0 0;border:none;flex:1}.notepad-window__title-input:focus{background-color:var(--color-surface-2);outline:none}.notepad-window__toolbar{justify-content:space-between;align-items:center;gap:var(--space-2);padding:var(--space-2) var(--space-3);border-bottom:1px solid var(--color-border);display:flex}.notepad-window__toolbar-right{align-items:center;gap:var(--space-2);margin-left:auto;display:flex}.note-editor{cursor:text;min-height:100%}.note-editor__prose{white-space:pre-wrap;word-wrap:break-word;outline:none;min-width:0;min-height:160px}.note-editor__prose pre{max-width:100%;overflow-x:auto}.note-editor__prose:focus-visible{box-shadow:none;outline:none}.note-editor__prose p.is-empty:first-child:before,.note-editor__prose p.is-empty:before{content:attr(data-placeholder);float:left;height:0;color:var(--color-text-faint);pointer-events:none}.note-editor__prose .tiptap-mathematics-render{cursor:pointer}.note-editor__prose .inline-math-error{color:var(--color-danger)}.note-editor__card{position:relative}.note-editor__card-remove{border-radius:var(--radius-full);width:22px;height:22px;color:var(--color-text-faint);cursor:pointer;opacity:0;background:0 0;border:none;font-size:16px;line-height:1;position:absolute;top:6px;right:8px}.note-editor__card:hover .note-editor__card-remove,.note-editor__card-remove:focus-visible{opacity:1}.note-editor__card-remove:hover{background-color:var(--color-accent-tint);color:var(--color-accent)}.notepad-window__save-status{font-size:var(--font-size-2xs);color:var(--color-text-faint)}.notepad-window__record-btn{border:1px solid var(--color-border);border-radius:var(--radius-full);color:var(--color-text-muted);font-family:inherit;font-size:var(--font-size-xs);padding:3px var(--space-3);cursor:pointer;background:0 0;align-items:center;gap:4px;display:flex}.notepad-window__record-btn:hover{border-color:var(--color-accent);color:var(--color-accent)}.notepad-window__record-btn--active{border-color:var(--color-danger);background-color:var(--color-danger-tint);color:var(--color-danger)}.notepad-window__textarea{resize:none;width:100%;height:100%;min-height:200px;color:inherit;font-family:var(--font-mono);font-size:var(--font-size-sm);line-height:var(--line-height-relaxed);background:0 0;border:none}.notepad-window__textarea:focus{outline:none}.notepad-window__preview{min-height:100%}.notepad-window__selection-toolbar{background-color:var(--color-surface);border:1px solid var(--color-border);border-radius:var(--radius-md);box-shadow:var(--shadow-md);z-index:20;gap:2px;padding:2px;display:flex;position:fixed}.notepad-window__selection-toolbar button{color:var(--color-text);font-family:inherit;font-size:var(--font-size-xs);padding:var(--space-1) var(--space-2);border-radius:var(--radius-sm);cursor:pointer;background:0 0;border:none}.notepad-window__selection-toolbar button:hover:not(:disabled){background-color:var(--color-accent-tint);color:var(--color-accent)}.notepad-window__selection-toolbar button:disabled{opacity:.5;cursor:default}.doc-annotate-popover{z-index:20;border:1px solid var(--color-success);border-radius:var(--radius-md);background-color:var(--color-success-tint);width:min(360px,100vw - 32px);max-height:260px;box-shadow:var(--shadow-md);padding:var(--space-2) var(--space-3);position:fixed;overflow-y:auto}.doc-annotate-popover__header{justify-content:space-between;align-items:center;gap:var(--space-2);margin-bottom:var(--space-1);display:flex}.doc-annotate-popover__label{font-size:var(--font-size-xs);color:var(--color-success);font-weight:600}.doc-annotate-popover__close{color:var(--color-text-muted);cursor:pointer;font-size:var(--font-size-md);padding:0 var(--space-1);background:0 0;border:none;line-height:1}.doc-annotate-popover__text{font-size:var(--font-size-sm);line-height:var(--line-height-relaxed);white-space:pre-wrap}.chat-split{flex:1;min-height:0;display:flex}.chat-split__chat{flex-direction:column;flex:1;min-width:0;min-height:0;display:flex}.doc-viewer-panel{width:var(--doc-panel-width,560px);border-left:1px solid var(--color-border);background-color:var(--color-surface);flex-direction:column;flex-shrink:0;min-width:360px;max-width:960px;min-height:0;display:flex;position:relative}.doc-viewer-panel__header{justify-content:space-between;align-items:center;gap:var(--space-3);padding:var(--space-3) var(--space-4);border-bottom:1px solid var(--color-border);flex-shrink:0;display:flex}.doc-viewer-panel__filename{font-weight:var(--font-weight-medium);text-overflow:ellipsis;white-space:nowrap;min-width:0;overflow:hidden}.doc-viewer-panel__toolbar{align-items:center;gap:var(--space-2);flex-shrink:0;display:flex}.doc-viewer-panel__icon-btn{color:var(--color-text-muted);font-size:var(--font-size-md);padding:var(--space-1) var(--space-2);border-radius:var(--radius-sm);background:0 0;border:none;line-height:1}.doc-viewer-panel__icon-btn:hover:not(:disabled){background-color:var(--color-surface-2);color:var(--color-text)}.doc-viewer-panel__icon-btn:disabled{opacity:.4}.doc-viewer-panel__zoom-level{font-size:var(--font-size-2xs);color:var(--color-text-faint);text-align:center;min-width:3.2em}.doc-viewer-panel__status{margin:0 var(--space-4)}.doc-viewer-panel__body{padding:var(--space-4);flex:1;position:relative;overflow-y:auto}.doc-viewer-panel__text{max-width:none}.doc-viewer-panel__pdf-pages{align-items:center;gap:var(--space-4);flex-direction:column;display:flex}.doc-viewer-panel__page{box-shadow:var(--shadow-sm);position:relative}.doc-viewer-panel__page canvas{display:block}.textLayer{opacity:1;text-align:initial;transform-origin:0 0;line-height:1;position:absolute;inset:0;overflow:clip}.textLayer span,.textLayer br{color:#0000;white-space:pre;cursor:text;transform-origin:0 0;position:absolute}@media (width<=920px){.right-panel{display:none}}@media (width<=640px){.sidebar{width:200px;min-width:160px}.main-header{padding:var(--space-3) var(--space-4)}.composer,.message-list{padding-left:var(--space-3);padding-right:var(--space-3)}}@media (width<=480px){.sidebar{width:168px;min-width:140px}.sidebar-clock-time{font-size:var(--font-size-xl)}.modal-panel{padding:var(--space-4)}.transcript-entry{row-gap:var(--space-1);grid-template-columns:1fr}.transcript-gutter{align-items:baseline;gap:var(--space-2);flex-direction:row}}.home-view{min-height:0;padding:var(--space-5) var(--space-6) var(--space-8);flex-direction:column;flex:1;display:flex;overflow-y:auto}.home-view-toolbar{justify-content:space-between;align-items:flex-start;gap:var(--space-4);padding-bottom:var(--space-4);border-bottom:1px solid var(--color-border-2);flex-shrink:0;display:flex}.home-view-toolbar .modal-subtitle{margin:0}.home-view-customize{flex-shrink:0;position:relative}.home-customize-popover{z-index:5;gap:var(--space-2);min-width:300px;padding:var(--space-3);border:1px solid var(--color-border);border-radius:var(--radius-md);background-color:var(--color-surface);box-shadow:var(--shadow-md);flex-direction:column;display:flex;position:absolute;top:calc(100% + 6px);right:0}.home-customize-hint{margin:0 0 var(--space-1);font-size:var(--font-size-xs);color:var(--color-text-faint)}.home-customize-row{align-items:center;gap:var(--space-2);border-radius:var(--radius-sm);background-color:var(--color-surface);display:flex}.home-customize-row--dragging{background-color:var(--color-surface-2);box-shadow:var(--shadow-sm);z-index:1;position:relative}.home-customize-option{align-items:center;gap:var(--space-2);min-width:0;font-size:var(--font-size-sm);color:var(--color-text);cursor:pointer;flex:1;display:flex}.home-customize-drag{border-radius:var(--radius-sm);width:22px;height:22px;color:var(--color-text-faint);font-size:var(--font-size-md);cursor:grab;touch-action:none;background:0 0;border:none;flex-shrink:0;justify-content:center;align-items:center;line-height:1;display:flex}.home-customize-drag:hover,.home-customize-drag:focus-visible{background-color:var(--color-surface-2);color:var(--color-text)}.home-customize-drag:active{cursor:grabbing}.home-customize-size{padding:2px var(--space-2);border:1px solid var(--color-border);border-radius:var(--radius-full);color:var(--color-text-muted);font-size:var(--font-size-2xs);font-weight:var(--font-weight-medium);background-color:#0000;flex-shrink:0}.home-customize-size:hover{border-color:var(--color-accent);color:var(--color-accent)}.home-widgets{gap:var(--space-5);margin-top:var(--space-5);grid-template-columns:repeat(3,1fr);display:grid}.home-widget{gap:var(--space-3);background-color:var(--color-surface);border:1px solid var(--color-border-2);border-radius:var(--radius-lg);min-width:0;padding:var(--space-4) var(--space-4) var(--space-5);box-shadow:var(--shadow-sm);flex-direction:column;display:flex}.home-widget--wide{grid-column:1/-1}.home-widget--compact{grid-column:span 1}.home-widget-title{font-family:var(--font-serif);font-size:var(--font-size-md);font-weight:var(--font-weight-semibold);color:var(--color-text);padding-bottom:var(--space-3);border-bottom:1px solid var(--color-border-2);margin:0}.home-quick-actions{gap:var(--space-2);flex-wrap:wrap;display:flex}.home-recent-grid{gap:var(--space-3);grid-template-columns:repeat(auto-fill,minmax(200px,1fr));display:grid}.home-recent-grid .recent-item-card--card{background-color:var(--color-surface-2);border-color:#0000}.home-recent-grid .recent-item-card--card:hover{background-color:var(--color-surface-3)}.home-conversation-list,.home-due-list{flex-direction:column;gap:2px;display:flex}.home-conversation-item,.home-due-item{border-radius:var(--radius-sm);width:100%;padding:var(--space-2);text-align:left;cursor:pointer;background:0 0;border:none;transition:background-color .15s}.home-conversation-item{align-items:center;gap:var(--space-2);display:flex}.home-due-item{flex-direction:column;gap:4px;display:flex}.home-due-item-top{justify-content:space-between;align-items:center;gap:var(--space-2);display:flex}.home-conversation-item:hover,.home-due-item:hover{background-color:var(--color-surface-2)}.home-conversation-title{min-width:0;font-size:var(--font-size-sm);color:var(--color-text);text-overflow:ellipsis;white-space:nowrap;flex:1;overflow:hidden}.home-due-title{font-size:var(--font-size-sm);color:var(--color-text);-webkit-line-clamp:2;-webkit-box-orient:vertical;display:-webkit-box;overflow:hidden}.home-conversation-date,.home-due-date{font-size:var(--font-size-2xs);color:var(--color-text-faint);flex-shrink:0}.home-due-badge{font-size:var(--font-size-2xs);font-weight:var(--font-weight-medium);border-radius:var(--radius-sm);flex-shrink:0;padding:2px 7px}.home-due-badge--study{background-color:var(--color-info-tint);color:var(--color-info)}.home-due-badge--flashcard{background-color:var(--color-warning-tint);color:var(--color-warning)}.home-weak-area-list{gap:var(--space-3);grid-template-columns:repeat(auto-fit,minmax(230px,1fr));display:grid}.home-weak-area{gap:var(--space-2);padding:var(--space-3);border:1px solid var(--color-border);border-radius:var(--radius-md);background-color:var(--color-surface-2);flex-direction:column;display:flex}.home-weak-area-top{justify-content:space-between;align-items:baseline;gap:var(--space-2);display:flex}.home-weak-area-label{font-size:var(--font-size-sm);font-weight:var(--font-weight-medium);color:var(--color-text);text-overflow:ellipsis;white-space:nowrap;overflow:hidden}.home-weak-area-count{font-size:var(--font-size-2xs);color:var(--color-text-faint);flex-shrink:0}.home-weak-area-examples{gap:var(--space-2);flex-direction:column;display:flex}.home-weak-area-example{align-items:flex-start;gap:var(--space-2);display:flex}.home-weak-area-kind{font-size:var(--font-size-2xs);font-weight:var(--font-weight-medium);border-radius:var(--radius-sm);flex-shrink:0;padding:2px 7px}.home-weak-area-kind--card{background-color:var(--color-warning-tint);color:var(--color-warning)}.home-weak-area-kind--question{background-color:var(--color-danger-tint);color:var(--color-danger)}.home-weak-area-example-text{font-size:var(--font-size-xs);color:var(--color-text-muted);-webkit-line-clamp:2;-webkit-box-orient:vertical;display:-webkit-box;overflow:hidden}.home-weak-area-actions{gap:var(--space-2);flex-wrap:wrap;margin-top:auto;display:flex}@media (width<=1100px){.home-widgets{grid-template-columns:repeat(2,1fr)}}@media (width<=720px){.home-widgets{grid-template-columns:1fr}}.calendar-add-btn{margin-bottom:var(--space-4);align-self:flex-start}.calendar-form{gap:var(--space-3);padding:var(--space-4);margin-bottom:var(--space-4);border:1px solid var(--color-border-2);border-radius:var(--radius-sm);background-color:var(--color-surface);flex-direction:column;display:flex}.calendar-field{gap:var(--space-1);flex-direction:column;flex:1;min-width:0;display:flex}.calendar-field-row{gap:var(--space-3);flex-wrap:wrap;display:flex}.calendar-agenda{gap:var(--space-5);flex-direction:column;display:flex}.calendar-day-heading{margin:0 0 var(--space-2);font-family:inherit;font-size:var(--font-size-2xs);font-weight:var(--font-weight-semibold);text-transform:uppercase;letter-spacing:.06em;color:var(--color-text-faint)}.item-row-actions{align-items:center;gap:var(--space-2);flex-shrink:0;display:flex}.settings-calendar-actions{gap:var(--space-2);margin-top:var(--space-2);flex-wrap:wrap;display:flex}.artifact-plan-card{margin:var(--space-2) 0;border:1px solid var(--color-border);border-radius:var(--radius-md);background-color:var(--color-surface);padding:var(--space-4);gap:var(--space-3);flex-direction:column;display:flex}.artifact-plan-card--error{color:var(--color-danger);font-size:var(--font-size-sm);padding:var(--space-2) var(--space-3)}.artifact-plan-card__header{align-items:center;gap:var(--space-3);display:flex}.artifact-plan-card__kind-badge{font-size:var(--font-size-2xs);font-weight:var(--font-weight-semibold);letter-spacing:.06em;color:var(--color-accent-contrast);background-color:var(--color-accent);border-radius:var(--radius-full);padding:3px var(--space-3);flex-shrink:0}.artifact-plan-card__title{font-family:var(--font-serif);font-size:var(--font-size-lg);margin:0}.artifact-plan-card__summary{color:var(--color-text-muted);line-height:var(--line-height-relaxed);margin:0}.artifact-plan-card__cost-note{font-size:var(--font-size-2xs);color:var(--color-text-faint);line-height:var(--line-height-relaxed);margin:0}.artifact-plan-card__actions{gap:var(--space-2);margin-top:var(--space-1);flex-wrap:wrap;display:flex}.artifact-plan-card__locked-note{font-size:var(--font-size-xs);color:var(--color-text-faint);font-style:italic}.artifact-block{margin:var(--space-2) 0;border:1px solid var(--color-border);border-radius:var(--radius-md);background-color:var(--color-surface);padding:var(--space-3);gap:var(--space-2);flex-direction:column;display:flex}.artifact-block--error{color:var(--color-danger);font-size:var(--font-size-sm)}.artifact-block__header{align-items:center;gap:var(--space-2);flex-wrap:wrap;display:flex}.artifact-block__kind{font-size:var(--font-size-2xs);font-weight:var(--font-weight-semibold);letter-spacing:.06em;color:var(--color-accent-contrast);background-color:var(--color-accent);border-radius:var(--radius-full);padding:3px var(--space-3);flex-shrink:0}.artifact-block__title{font-weight:var(--font-weight-semibold)}.artifact-block__actions{gap:var(--space-2);margin-left:auto;display:flex}.artifact-block__loading{font-size:var(--font-size-sm);color:var(--color-text-muted);padding:var(--space-4) 0;text-align:center}.artifact-block__frame{border:1px solid var(--color-border);border-radius:var(--radius-sm);background-color:#fff;width:100%;height:420px;display:block}.artifact-block__expanded-placeholder{border:1px dashed var(--color-border);border-radius:var(--radius-sm);height:120px;color:var(--color-text-faint);font-size:var(--font-size-sm);justify-content:center;align-items:center;display:flex}.artifact-block__footnote{font-size:var(--font-size-2xs);color:var(--color-text-faint);margin:0}.artifact-viewer-overlay{z-index:100;padding:var(--space-4);background-color:#0f0f1499;justify-content:center;align-items:center;display:flex;position:fixed;inset:0}.artifact-viewer-panel{gap:var(--space-3);background-color:var(--color-surface);border:1px solid var(--color-border);border-radius:var(--radius-lg);width:96vw;height:94vh;box-shadow:var(--shadow-lg);padding:var(--space-4);flex-direction:column;display:flex}.artifact-viewer-panel__header{align-items:center;gap:var(--space-2);flex-shrink:0;display:flex}.artifact-viewer-panel__body{flex:1;min-height:0;display:flex}.artifact-viewer-panel__frame{border:1px solid var(--color-border);border-radius:var(--radius-sm);background-color:#fff;width:100%;height:100%;display:block}@media (width<=720px){.artifact-viewer-panel{border-radius:0;width:100vw;height:100vh}}@font-face{font-display:block;font-family:KaTeX_AMS;font-style:normal;font-weight:400;src:url(/chat/assets/KaTeX_AMS-Regular-BQhdFMY1.woff2)format("woff2"),url(/chat/assets/KaTeX_AMS-Regular-DMm9YOAa.woff)format("woff"),url(/chat/assets/KaTeX_AMS-Regular-DRggAlZN.ttf)format("truetype")}@font-face{font-display:block;font-family:KaTeX_Caligraphic;font-style:normal;font-weight:700;src:url(/chat/assets/KaTeX_Caligraphic-Bold-Dq_IR9rO.woff2)format("woff2"),url(/chat/assets/KaTeX_Caligraphic-Bold-BEiXGLvX.woff)format("woff"),url(/chat/assets/KaTeX_Caligraphic-Bold-ATXxdsX0.ttf)format("truetype")}@font-face{font-display:block;font-family:KaTeX_Caligraphic;font-style:normal;font-weight:400;src:url(/chat/assets/KaTeX_Caligraphic-Regular-Di6jR-x-.woff2)format("woff2"),url(/chat/assets/KaTeX_Caligraphic-Regular-CTRA-rTL.woff)format("woff"),url(/chat/assets/KaTeX_Caligraphic-Regular-wX97UBjC.ttf)format("truetype")}@font-face{font-display:block;font-family:KaTeX_Fraktur;font-style:normal;font-weight:700;src:url(/chat/assets/KaTeX_Fraktur-Bold-CL6g_b3V.woff2)format("woff2"),url(/chat/assets/KaTeX_Fraktur-Bold-BsDP51OF.woff)format("woff"),url(/chat/assets/KaTeX_Fraktur-Bold-BdnERNNW.ttf)format("truetype")}@font-face{font-display:block;font-family:KaTeX_Fraktur;font-style:normal;font-weight:400;src:url(/chat/assets/KaTeX_Fraktur-Regular-CTYiF6lA.woff2)format("woff2"),url(/chat/assets/KaTeX_Fraktur-Regular-Dxdc4cR9.woff)format("woff"),url(/chat/assets/KaTeX_Fraktur-Regular-CB_wures.ttf)format("truetype")}@font-face{font-display:block;font-family:KaTeX_Main;font-style:normal;font-weight:700;src:url(/chat/assets/KaTeX_Main-Bold-Cx986IdX.woff2)format("woff2"),url(/chat/assets/KaTeX_Main-Bold-Jm3AIy58.woff)format("woff"),url(/chat/assets/KaTeX_Main-Bold-waoOVXN0.ttf)format("truetype")}@font-face{font-display:block;font-family:KaTeX_Main;font-style:italic;font-weight:700;src:url(/chat/assets/KaTeX_Main-BoldItalic-DxDJ3AOS.woff2)format("woff2"),url(/chat/assets/KaTeX_Main-BoldItalic-SpSLRI95.woff)format("woff"),url(/chat/assets/KaTeX_Main-BoldItalic-DzxPMmG6.ttf)format("truetype")}@font-face{font-display:block;font-family:KaTeX_Main;font-style:italic;font-weight:400;src:url(/chat/assets/KaTeX_Main-Italic-NWA7e6Wa.woff2)format("woff2"),url(/chat/assets/KaTeX_Main-Italic-BMLOBm91.woff)format("woff"),url(/chat/assets/KaTeX_Main-Italic-3WenGoN9.ttf)format("truetype")}@font-face{font-display:block;font-family:KaTeX_Main;font-style:normal;font-weight:400;src:url(/chat/assets/KaTeX_Main-Regular-B22Nviop.woff2)format("woff2"),url(/chat/assets/KaTeX_Main-Regular-Dr94JaBh.woff)format("woff"),url(/chat/assets/KaTeX_Main-Regular-ypZvNtVU.ttf)format("truetype")}@font-face{font-display:block;font-family:KaTeX_Math;font-style:italic;font-weight:700;src:url(/chat/assets/KaTeX_Math-BoldItalic-CZnvNsCZ.woff2)format("woff2"),url(/chat/assets/KaTeX_Math-BoldItalic-iY-2wyZ7.woff)format("woff"),url(/chat/assets/KaTeX_Math-BoldItalic-B3XSjfu4.ttf)format("truetype")}@font-face{font-display:block;font-family:KaTeX_Math;font-style:italic;font-weight:400;src:url(/chat/assets/KaTeX_Math-Italic-t53AETM-.woff2)format("woff2"),url(/chat/assets/KaTeX_Math-Italic-DA0__PXp.woff)format("woff"),url(/chat/assets/KaTeX_Math-Italic-flOr_0UB.ttf)format("truetype")}@font-face{font-display:block;font-family:KaTeX_SansSerif;font-style:normal;font-weight:700;src:url(/chat/assets/KaTeX_SansSerif-Bold-D1sUS0GD.woff2)format("woff2"),url(/chat/assets/KaTeX_SansSerif-Bold-DbIhKOiC.woff)format("woff"),url(/chat/assets/KaTeX_SansSerif-Bold-CFMepnvq.ttf)format("truetype")}@font-face{font-display:block;font-family:KaTeX_SansSerif;font-style:italic;font-weight:400;src:url(/chat/assets/KaTeX_SansSerif-Italic-C3H0VqGB.woff2)format("woff2"),url(/chat/assets/KaTeX_SansSerif-Italic-DN2j7dab.woff)format("woff"),url(/chat/assets/KaTeX_SansSerif-Italic-YYjJ1zSn.ttf)format("truetype")}@font-face{font-display:block;font-family:KaTeX_SansSerif;font-style:normal;font-weight:400;src:url(/chat/assets/KaTeX_SansSerif-Regular-DDBCnlJ7.woff2)format("woff2"),url(/chat/assets/KaTeX_SansSerif-Regular-CS6fqUqJ.woff)format("woff"),url(/chat/assets/KaTeX_SansSerif-Regular-BNo7hRIc.ttf)format("truetype")}@font-face{font-display:block;font-family:KaTeX_Script;font-style:normal;font-weight:400;src:url(/chat/assets/KaTeX_Script-Regular-D3wIWfF6.woff2)format("woff2"),url(/chat/assets/KaTeX_Script-Regular-D5yQViql.woff)format("woff"),url(/chat/assets/KaTeX_Script-Regular-C5JkGWo-.ttf)format("truetype")}@font-face{font-display:block;font-family:KaTeX_Size1;font-style:normal;font-weight:400;src:url(/chat/assets/KaTeX_Size1-Regular-mCD8mA8B.woff2)format("woff2"),url(/chat/assets/KaTeX_Size1-Regular-C195tn64.woff)format("woff"),url(/chat/assets/KaTeX_Size1-Regular-Dbsnue_I.ttf)format("truetype")}@font-face{font-display:block;font-family:KaTeX_Size2;font-style:normal;font-weight:400;src:url(/chat/assets/KaTeX_Size2-Regular-Dy4dx90m.woff2)format("woff2"),url(/chat/assets/KaTeX_Size2-Regular-oD1tc_U0.woff)format("woff"),url(/chat/assets/KaTeX_Size2-Regular-B7gKUWhC.ttf)format("truetype")}@font-face{font-display:block;font-family:KaTeX_Size3;font-style:normal;font-weight:400;src:url(data:font/woff2;base64,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)format("woff2"),url(/chat/assets/KaTeX_Size3-Regular-CTq5MqoE.woff)format("woff"),url(/chat/assets/KaTeX_Size3-Regular-DgpXs0kz.ttf)format("truetype")}@font-face{font-display:block;font-family:KaTeX_Size4;font-style:normal;font-weight:400;src:url(/chat/assets/KaTeX_Size4-Regular-Dl5lxZxV.woff2)format("woff2"),url(/chat/assets/KaTeX_Size4-Regular-BF-4gkZK.woff)format("woff"),url(/chat/assets/KaTeX_Size4-Regular-DWFBv043.ttf)format("truetype")}@font-face{font-display:block;font-family:KaTeX_Typewriter;font-style:normal;font-weight:400;src:url(/chat/assets/KaTeX_Typewriter-Regular-CO6r4hn1.woff2)format("woff2"),url(/chat/assets/KaTeX_Typewriter-Regular-C0xS9mPB.woff)format("woff"),url(/chat/assets/KaTeX_Typewriter-Regular-D3Ib7_Hf.ttf)format("truetype")}.katex{text-indent:0;text-rendering:auto;font:1.21em/1.2 KaTeX_Main,Times New Roman,serif;position:relative}.katex *{border-color:currentColor;-ms-high-contrast-adjust:none!important}.katex .katex-version:after{content:"0.18.7"}.katex .katex-mathml{clip-path:inset(50%);border:0;width:1px;height:1px;padding:0;position:absolute;overflow:hidden}.katex .katex-html>.katex-newline{display:block}.katex .katex-base{white-space:nowrap;width:min-content;position:relative}.katex .katex-base,.katex .katex-strut{display:inline-block}.katex .textbf{font-weight:700}.katex .textit{font-style:italic}.katex .textrm{font-family:KaTeX_Main}.katex .textsf{font-family:KaTeX_SansSerif}.katex .texttt{font-family:KaTeX_Typewriter}.katex .mathnormal{font-family:KaTeX_Math;font-style:italic}.katex .mathit{font-family:KaTeX_Main;font-style:italic}.katex .mathrm{font-style:normal}.katex .mathbf{font-family:KaTeX_Main;font-weight:700}.katex .boldsymbol{font-family:KaTeX_Math;font-style:italic;font-weight:700}.katex .amsrm,.katex .mathbb,.katex .textbb{font-family:KaTeX_AMS}.katex .mathcal{font-family:KaTeX_Caligraphic}.katex .mathfrak,.katex .textfrak{font-family:KaTeX_Fraktur}.katex .mathboldfrak,.katex .textboldfrak{font-family:KaTeX_Fraktur;font-weight:700}.katex .mathtt{font-family:KaTeX_Typewriter}.katex .mathscr,.katex .textscr{font-family:KaTeX_Script}.katex .mathsf,.katex .textsf{font-family:KaTeX_SansSerif}.katex .mathboldsf,.katex .textboldsf{font-family:KaTeX_SansSerif;font-weight:700}.katex .mathitsf,.katex .mathsfit,.katex .textitsf{font-family:KaTeX_SansSerif;font-style:italic}.katex .mainrm{font-family:KaTeX_Main;font-style:normal}.katex .vlist-t{border-collapse:collapse;table-layout:fixed;display:inline-table}.katex .vlist-r{display:table-row}.katex .vlist{vertical-align:bottom;display:table-cell;position:relative}.katex .vlist>span{height:0;display:block;position:relative}.katex .vlist>span>span{display:inline-block}.katex .vlist>span>.pstrut{width:0;overflow:hidden}.katex .vlist-t2{margin-right:-2px}.katex .vlist-s{vertical-align:bottom;width:2px;min-width:2px;font-size:1px;display:table-cell}.katex .katex-vbox{flex-direction:column;align-items:baseline;display:inline-flex}.katex .katex-thinbox{flex-direction:row;width:0;max-width:0;display:inline-flex}.katex .msupsub{text-align:left}.katex .mfrac>span>span{text-align:center}.katex .mfrac .frac-line{border-bottom-style:solid;width:100%;display:inline-block}.katex .katex-hdashline,.katex .katex-hline,.katex .katex-overline .overline-line,.katex .katex-rule,.katex .katex-underline .underline-line,.katex .mfrac .frac-line{min-height:1px}.katex .mspace{display:inline-block}.katex .katex-smash{line-height:0;display:inline}.katex .clap,.katex .llap,.katex .rlap{width:0;position:relative}.katex .clap>.katex-inner,.katex .llap>.katex-inner,.katex .rlap>.katex-inner{position:absolute}.katex .clap>.katex-fix,.katex .llap>.katex-fix,.katex .rlap>.katex-fix{display:inline-block}.katex .llap>.katex-inner{right:0}.katex .clap>.katex-inner,.katex .rlap>.katex-inner{left:0}.katex .clap>.katex-inner>span{margin-left:-50%;margin-right:50%}.katex .katex-rule{border:0 solid;display:inline-block;position:relative}.katex .katex-hline,.katex .katex-overline .overline-line,.katex .katex-underline .underline-line{border-bottom-style:solid;width:100%;display:inline-block}.katex .katex-hdashline{border-bottom-style:dashed;width:100%;display:inline-block}.katex .sqrt>.katex-root{margin-left:.277778em;margin-right:-.555556em}.katex .fontsize-ensurer.reset-size1.size1,.katex .katex-sizing.reset-size1.size1{font-size:1em}.katex .fontsize-ensurer.reset-size1.size2,.katex .katex-sizing.reset-size1.size2{font-size:1.2em}.katex .fontsize-ensurer.reset-size1.size3,.katex .katex-sizing.reset-size1.size3{font-size:1.4em}.katex .fontsize-ensurer.reset-size1.size4,.katex .katex-sizing.reset-size1.size4{font-size:1.6em}.katex .fontsize-ensurer.reset-size1.size5,.katex .katex-sizing.reset-size1.size5{font-size:1.8em}.katex .fontsize-ensurer.reset-size1.size6,.katex .katex-sizing.reset-size1.size6{font-size:2em}.katex .fontsize-ensurer.reset-size1.size7,.katex .katex-sizing.reset-size1.size7{font-size:2.4em}.katex .fontsize-ensurer.reset-size1.size8,.katex .katex-sizing.reset-size1.size8{font-size:2.88em}.katex .fontsize-ensurer.reset-size1.size9,.katex .katex-sizing.reset-size1.size9{font-size:3.456em}.katex .fontsize-ensurer.reset-size1.size10,.katex .katex-sizing.reset-size1.size10{font-size:4.148em}.katex .fontsize-ensurer.reset-size1.size11,.katex .katex-sizing.reset-size1.size11{font-size:4.976em}.katex .fontsize-ensurer.reset-size2.size1,.katex .katex-sizing.reset-size2.size1{font-size:.833333em}.katex .fontsize-ensurer.reset-size2.size2,.katex .katex-sizing.reset-size2.size2{font-size:1em}.katex .fontsize-ensurer.reset-size2.size3,.katex .katex-sizing.reset-size2.size3{font-size:1.16667em}.katex .fontsize-ensurer.reset-size2.size4,.katex .katex-sizing.reset-size2.size4{font-size:1.33333em}.katex .fontsize-ensurer.reset-size2.size5,.katex .katex-sizing.reset-size2.size5{font-size:1.5em}.katex .fontsize-ensurer.reset-size2.size6,.katex .katex-sizing.reset-size2.size6{font-size:1.66667em}.katex .fontsize-ensurer.reset-size2.size7,.katex .katex-sizing.reset-size2.size7{font-size:2em}.katex .fontsize-ensurer.reset-size2.size8,.katex .katex-sizing.reset-size2.size8{font-size:2.4em}.katex .fontsize-ensurer.reset-size2.size9,.katex .katex-sizing.reset-size2.size9{font-size:2.88em}.katex .fontsize-ensurer.reset-size2.size10,.katex .katex-sizing.reset-size2.size10{font-size:3.45667em}.katex .fontsize-ensurer.reset-size2.size11,.katex .katex-sizing.reset-size2.size11{font-size:4.14667em}.katex .fontsize-ensurer.reset-size3.size1,.katex .katex-sizing.reset-size3.size1{font-size:.714286em}.katex .fontsize-ensurer.reset-size3.size2,.katex .katex-sizing.reset-size3.size2{font-size:.857143em}.katex .fontsize-ensurer.reset-size3.size3,.katex .katex-sizing.reset-size3.size3{font-size:1em}.katex .fontsize-ensurer.reset-size3.size4,.katex .katex-sizing.reset-size3.size4{font-size:1.14286em}.katex .fontsize-ensurer.reset-size3.size5,.katex .katex-sizing.reset-size3.size5{font-size:1.28571em}.katex .fontsize-ensurer.reset-size3.size6,.katex .katex-sizing.reset-size3.size6{font-size:1.42857em}.katex .fontsize-ensurer.reset-size3.size7,.katex .katex-sizing.reset-size3.size7{font-size:1.71429em}.katex .fontsize-ensurer.reset-size3.size8,.katex .katex-sizing.reset-size3.size8{font-size:2.05714em}.katex .fontsize-ensurer.reset-size3.size9,.katex .katex-sizing.reset-size3.size9{font-size:2.46857em}.katex .fontsize-ensurer.reset-size3.size10,.katex .katex-sizing.reset-size3.size10{font-size:2.96286em}.katex .fontsize-ensurer.reset-size3.size11,.katex .katex-sizing.reset-size3.size11{font-size:3.55429em}.katex .fontsize-ensurer.reset-size4.size1,.katex .katex-sizing.reset-size4.size1{font-size:.625em}.katex .fontsize-ensurer.reset-size4.size2,.katex .katex-sizing.reset-size4.size2{font-size:.75em}.katex .fontsize-ensurer.reset-size4.size3,.katex .katex-sizing.reset-size4.size3{font-size:.875em}.katex .fontsize-ensurer.reset-size4.size4,.katex .katex-sizing.reset-size4.size4{font-size:1em}.katex .fontsize-ensurer.reset-size4.size5,.katex .katex-sizing.reset-size4.size5{font-size:1.125em}.katex .fontsize-ensurer.reset-size4.size6,.katex .katex-sizing.reset-size4.size6{font-size:1.25em}.katex .fontsize-ensurer.reset-size4.size7,.katex .katex-sizing.reset-size4.size7{font-size:1.5em}.katex .fontsize-ensurer.reset-size4.size8,.katex .katex-sizing.reset-size4.size8{font-size:1.8em}.katex .fontsize-ensurer.reset-size4.size9,.katex .katex-sizing.reset-size4.size9{font-size:2.16em}.katex .fontsize-ensurer.reset-size4.size10,.katex .katex-sizing.reset-size4.size10{font-size:2.5925em}.katex .fontsize-ensurer.reset-size4.size11,.katex .katex-sizing.reset-size4.size11{font-size:3.11em}.katex .fontsize-ensurer.reset-size5.size1,.katex .katex-sizing.reset-size5.size1{font-size:.555556em}.katex .fontsize-ensurer.reset-size5.size2,.katex .katex-sizing.reset-size5.size2{font-size:.666667em}.katex .fontsize-ensurer.reset-size5.size3,.katex .katex-sizing.reset-size5.size3{font-size:.777778em}.katex .fontsize-ensurer.reset-size5.size4,.katex .katex-sizing.reset-size5.size4{font-size:.888889em}.katex .fontsize-ensurer.reset-size5.size5,.katex .katex-sizing.reset-size5.size5{font-size:1em}.katex .fontsize-ensurer.reset-size5.size6,.katex .katex-sizing.reset-size5.size6{font-size:1.11111em}.katex .fontsize-ensurer.reset-size5.size7,.katex .katex-sizing.reset-size5.size7{font-size:1.33333em}.katex .fontsize-ensurer.reset-size5.size8,.katex .katex-sizing.reset-size5.size8{font-size:1.6em}.katex .fontsize-ensurer.reset-size5.size9,.katex .katex-sizing.reset-size5.size9{font-size:1.92em}.katex .fontsize-ensurer.reset-size5.size10,.katex .katex-sizing.reset-size5.size10{font-size:2.30444em}.katex .fontsize-ensurer.reset-size5.size11,.katex .katex-sizing.reset-size5.size11{font-size:2.76444em}.katex .fontsize-ensurer.reset-size6.size1,.katex .katex-sizing.reset-size6.size1{font-size:.5em}.katex .fontsize-ensurer.reset-size6.size2,.katex .katex-sizing.reset-size6.size2{font-size:.6em}.katex .fontsize-ensurer.reset-size6.size3,.katex .katex-sizing.reset-size6.size3{font-size:.7em}.katex .fontsize-ensurer.reset-size6.size4,.katex .katex-sizing.reset-size6.size4{font-size:.8em}.katex .fontsize-ensurer.reset-size6.size5,.katex .katex-sizing.reset-size6.size5{font-size:.9em}.katex .fontsize-ensurer.reset-size6.size6,.katex .katex-sizing.reset-size6.size6{font-size:1em}.katex .fontsize-ensurer.reset-size6.size7,.katex .katex-sizing.reset-size6.size7{font-size:1.2em}.katex .fontsize-ensurer.reset-size6.size8,.katex .katex-sizing.reset-size6.size8{font-size:1.44em}.katex .fontsize-ensurer.reset-size6.size9,.katex .katex-sizing.reset-size6.size9{font-size:1.728em}.katex .fontsize-ensurer.reset-size6.size10,.katex .katex-sizing.reset-size6.size10{font-size:2.074em}.katex .fontsize-ensurer.reset-size6.size11,.katex .katex-sizing.reset-size6.size11{font-size:2.488em}.katex .fontsize-ensurer.reset-size7.size1,.katex .katex-sizing.reset-size7.size1{font-size:.416667em}.katex .fontsize-ensurer.reset-size7.size2,.katex .katex-sizing.reset-size7.size2{font-size:.5em}.katex .fontsize-ensurer.reset-size7.size3,.katex .katex-sizing.reset-size7.size3{font-size:.583333em}.katex .fontsize-ensurer.reset-size7.size4,.katex .katex-sizing.reset-size7.size4{font-size:.666667em}.katex .fontsize-ensurer.reset-size7.size5,.katex .katex-sizing.reset-size7.size5{font-size:.75em}.katex .fontsize-ensurer.reset-size7.size6,.katex .katex-sizing.reset-size7.size6{font-size:.833333em}.katex .fontsize-ensurer.reset-size7.size7,.katex .katex-sizing.reset-size7.size7{font-size:1em}.katex .fontsize-ensurer.reset-size7.size8,.katex .katex-sizing.reset-size7.size8{font-size:1.2em}.katex .fontsize-ensurer.reset-size7.size9,.katex .katex-sizing.reset-size7.size9{font-size:1.44em}.katex .fontsize-ensurer.reset-size7.size10,.katex .katex-sizing.reset-size7.size10{font-size:1.72833em}.katex .fontsize-ensurer.reset-size7.size11,.katex .katex-sizing.reset-size7.size11{font-size:2.07333em}.katex .fontsize-ensurer.reset-size8.size1,.katex .katex-sizing.reset-size8.size1{font-size:.347222em}.katex .fontsize-ensurer.reset-size8.size2,.katex .katex-sizing.reset-size8.size2{font-size:.416667em}.katex .fontsize-ensurer.reset-size8.size3,.katex .katex-sizing.reset-size8.size3{font-size:.486111em}.katex .fontsize-ensurer.reset-size8.size4,.katex .katex-sizing.reset-size8.size4{font-size:.555556em}.katex .fontsize-ensurer.reset-size8.size5,.katex .katex-sizing.reset-size8.size5{font-size:.625em}.katex .fontsize-ensurer.reset-size8.size6,.katex .katex-sizing.reset-size8.size6{font-size:.694444em}.katex .fontsize-ensurer.reset-size8.size7,.katex .katex-sizing.reset-size8.size7{font-size:.833333em}.katex .fontsize-ensurer.reset-size8.size8,.katex .katex-sizing.reset-size8.size8{font-size:1em}.katex .fontsize-ensurer.reset-size8.size9,.katex .katex-sizing.reset-size8.size9{font-size:1.2em}.katex .fontsize-ensurer.reset-size8.size10,.katex .katex-sizing.reset-size8.size10{font-size:1.44028em}.katex .fontsize-ensurer.reset-size8.size11,.katex .katex-sizing.reset-size8.size11{font-size:1.72778em}.katex .fontsize-ensurer.reset-size9.size1,.katex .katex-sizing.reset-size9.size1{font-size:.289352em}.katex .fontsize-ensurer.reset-size9.size2,.katex .katex-sizing.reset-size9.size2{font-size:.347222em}.katex .fontsize-ensurer.reset-size9.size3,.katex .katex-sizing.reset-size9.size3{font-size:.405093em}.katex .fontsize-ensurer.reset-size9.size4,.katex .katex-sizing.reset-size9.size4{font-size:.462963em}.katex .fontsize-ensurer.reset-size9.size5,.katex .katex-sizing.reset-size9.size5{font-size:.520833em}.katex .fontsize-ensurer.reset-size9.size6,.katex .katex-sizing.reset-size9.size6{font-size:.578704em}.katex .fontsize-ensurer.reset-size9.size7,.katex .katex-sizing.reset-size9.size7{font-size:.694444em}.katex .fontsize-ensurer.reset-size9.size8,.katex .katex-sizing.reset-size9.size8{font-size:.833333em}.katex .fontsize-ensurer.reset-size9.size9,.katex .katex-sizing.reset-size9.size9{font-size:1em}.katex .fontsize-ensurer.reset-size9.size10,.katex .katex-sizing.reset-size9.size10{font-size:1.20023em}.katex .fontsize-ensurer.reset-size9.size11,.katex .katex-sizing.reset-size9.size11{font-size:1.43981em}.katex .fontsize-ensurer.reset-size10.size1,.katex .katex-sizing.reset-size10.size1{font-size:.24108em}.katex .fontsize-ensurer.reset-size10.size2,.katex .katex-sizing.reset-size10.size2{font-size:.289296em}.katex .fontsize-ensurer.reset-size10.size3,.katex .katex-sizing.reset-size10.size3{font-size:.337512em}.katex .fontsize-ensurer.reset-size10.size4,.katex .katex-sizing.reset-size10.size4{font-size:.385728em}.katex .fontsize-ensurer.reset-size10.size5,.katex .katex-sizing.reset-size10.size5{font-size:.433944em}.katex .fontsize-ensurer.reset-size10.size6,.katex .katex-sizing.reset-size10.size6{font-size:.48216em}.katex .fontsize-ensurer.reset-size10.size7,.katex .katex-sizing.reset-size10.size7{font-size:.578592em}.katex .fontsize-ensurer.reset-size10.size8,.katex .katex-sizing.reset-size10.size8{font-size:.694311em}.katex .fontsize-ensurer.reset-size10.size9,.katex .katex-sizing.reset-size10.size9{font-size:.833173em}.katex .fontsize-ensurer.reset-size10.size10,.katex .katex-sizing.reset-size10.size10{font-size:1em}.katex .fontsize-ensurer.reset-size10.size11,.katex .katex-sizing.reset-size10.size11{font-size:1.19961em}.katex .fontsize-ensurer.reset-size11.size1,.katex .katex-sizing.reset-size11.size1{font-size:.200965em}.katex .fontsize-ensurer.reset-size11.size2,.katex .katex-sizing.reset-size11.size2{font-size:.241158em}.katex .fontsize-ensurer.reset-size11.size3,.katex .katex-sizing.reset-size11.size3{font-size:.281351em}.katex .fontsize-ensurer.reset-size11.size4,.katex .katex-sizing.reset-size11.size4{font-size:.321543em}.katex .fontsize-ensurer.reset-size11.size5,.katex .katex-sizing.reset-size11.size5{font-size:.361736em}.katex .fontsize-ensurer.reset-size11.size6,.katex .katex-sizing.reset-size11.size6{font-size:.401929em}.katex .fontsize-ensurer.reset-size11.size7,.katex .katex-sizing.reset-size11.size7{font-size:.482315em}.katex .fontsize-ensurer.reset-size11.size8,.katex .katex-sizing.reset-size11.size8{font-size:.578778em}.katex .fontsize-ensurer.reset-size11.size9,.katex .katex-sizing.reset-size11.size9{font-size:.694534em}.katex .fontsize-ensurer.reset-size11.size10,.katex .katex-sizing.reset-size11.size10{font-size:.833601em}.katex .fontsize-ensurer.reset-size11.size11,.katex .katex-sizing.reset-size11.size11{font-size:1em}.katex .delimsizing.size1{font-family:KaTeX_Size1}.katex .delimsizing.size2{font-family:KaTeX_Size2}.katex .delimsizing.size3{font-family:KaTeX_Size3}.katex .delimsizing.size4{font-family:KaTeX_Size4}.katex .delimsizing.mult .delim-size1>span{font-family:KaTeX_Size1}.katex .delimsizing.mult .delim-size4>span{font-family:KaTeX_Size4}.katex .nulldelimiter{width:.12em;display:inline-block}.katex .delimcenter,.katex .op-symbol{position:relative}.katex .op-symbol.small-op{font-family:KaTeX_Size1}.katex .op-symbol.large-op{font-family:KaTeX_Size2}.katex .katex-accent>.vlist-t,.katex .op-limits>.vlist-t{text-align:center}.katex .katex-accent .accent-body{position:relative}.katex .katex-accent .accent-body:not(.accent-full){width:0}.katex .katex-overlay{display:block}.katex .mtable .vertical-separator{min-width:1px;display:inline-block}.katex .mtable .arraycolsep{display:inline-block}.katex .mtable .col-align-c>.vlist-t{text-align:center}.katex .mtable .col-align-l>.vlist-t{text-align:left}.katex .mtable .col-align-r>.vlist-t{text-align:right}.katex .svg-align{text-align:left}.katex svg{fill:currentColor;stroke:currentColor;height:inherit;width:100%;display:block;position:absolute}.katex svg path{stroke:none}.katex svg{fill-rule:nonzero;fill-opacity:1;stroke-width:1px;stroke-linecap:butt;stroke-linejoin:miter;stroke-miterlimit:4;stroke-dasharray:none;stroke-dashoffset:0;stroke-opacity:1}.katex img{border-style:none;min-width:0;max-width:none;min-height:0;max-height:none}.katex .katex-stretchy{width:100%;display:block;position:relative;overflow:hidden}.katex .katex-stretchy:after,.katex .katex-stretchy:before{content:""}.katex .hide-tail{width:100%;position:relative;overflow:hidden}.katex .halfarrow-left{width:50.2%;position:absolute;left:0;overflow:hidden}.katex .halfarrow-right{width:50.2%;position:absolute;right:0;overflow:hidden}.katex .brace-left{width:25.1%;position:absolute;left:0;overflow:hidden}.katex .brace-center{width:50%;position:absolute;left:25%;overflow:hidden}.katex .brace-right{width:25.1%;position:absolute;right:0;overflow:hidden}.katex .x-arrow-pad{padding:0 .5em}.katex .cd-arrow-pad{padding:0 .55556em 0 .27778em}.katex .mover,.katex .munder,.katex .x-arrow{text-align:center}.katex .boxpad{padding:0 .3em}.katex .fbox,.katex .fcolorbox{box-sizing:border-box;border:.04em solid}.katex .cancel-pad{padding:0 .2em}.katex .cancel-lap{margin-left:-.2em;margin-right:-.2em}.katex .katex-sout{border-bottom-style:solid;border-bottom-width:.08em}.katex .angl{box-sizing:border-box;border-top:.049em solid;border-right:.049em solid;margin-right:.03889em}.katex .anglpad{padding:0 .03889em}.katex .reflectbox{display:inline-block;transform:scaleX(-1)}.katex .eqn-num:before{content:"(" counter(katexEqnNo) ")";counter-increment:katexEqnNo}.katex .mml-eqn-num:before{content:"(" counter(mmlEqnNo) ")";counter-increment:mmlEqnNo}.katex .mtr-glue{width:50%}.katex .cd-vert-arrow{display:inline-block;position:relative}.katex .cd-label-left{text-align:left;display:inline-block;position:absolute;right:calc(50% + .3em)}.katex .cd-label-right{text-align:right;display:inline-block;position:absolute;left:calc(50% + .3em)}.katex-display{text-align:center;margin:1em 0;display:block}.katex-display>.katex{text-align:center;white-space:nowrap;display:block}.katex-display>.katex>.katex-html{display:block;position:relative}.katex-display>.katex>.katex-html>.katex-tag{position:absolute;right:0}.katex-display.leqno>.katex>.katex-html>.katex-tag{left:0;right:auto}.katex-display.fleqn>.katex{text-align:left;padding-left:2em}body{counter-reset:katexEqnNo mmlEqnNo}pre code.hljs{padding:1em;display:block;overflow-x:auto}code.hljs{padding:3px 5px}.hljs{color:#c9d1d9;background:#0d1117}.hljs-doctag,.hljs-keyword,.hljs-meta .hljs-keyword,.hljs-template-tag,.hljs-template-variable,.hljs-type,.hljs-variable.language_{color:#ff7b72}.hljs-title,.hljs-title.class_,.hljs-title.class_.inherited__,.hljs-title.function_{color:#d2a8ff}.hljs-attr,.hljs-attribute,.hljs-literal,.hljs-meta,.hljs-number,.hljs-operator,.hljs-variable,.hljs-selector-attr,.hljs-selector-class,.hljs-selector-id{color:#79c0ff}.hljs-regexp,.hljs-string,.hljs-meta .hljs-string{color:#a5d6ff}.hljs-built_in,.hljs-symbol{color:#ffa657}.hljs-comment,.hljs-code,.hljs-formula{color:#8b949e}.hljs-name,.hljs-quote,.hljs-selector-tag,.hljs-selector-pseudo{color:#7ee787}.hljs-subst{color:#c9d1d9}.hljs-section{color:#1f6feb;font-weight:700}.hljs-bullet{color:#f2cc60}.hljs-emphasis{color:#c9d1d9;font-style:italic}.hljs-strong{color:#c9d1d9;font-weight:700}.hljs-addition{color:#aff5b4;background-color:#033a16}.hljs-deletion{color:#ffdcd7;background-color:#67060c}:root{--font-size-2xs:11.5px;--font-size-xs:12.5px;--font-size-sm:14px;--font-size-base:15px;--font-size-md:16px;--font-size-lg:18px;--font-size-xl:23px;--font-size-2xl:32px;--radius-sm:8px;--radius-md:12px;--radius-lg:18px;--color-border:#e8dcc0;--color-border-2:#efe5cd}@media (prefers-color-scheme:dark){:root{--color-border:#332a1e;--color-border-2:#281f16}}