:root{--indigo-7:#4263eb;--purple-7:#ae3ec9;--gray-12:#030507;--gray-7:#495057;--gray-0:#f8f9fa;--gray-2:#e9ecef;--gray-3:#dee2e6;--gray-4:#ced4da;--font-sans:system-ui,-apple-system,Segoe UI,Roboto,Ubuntu,Cantarell,Noto Sans,sans-serif;--font-lineheight-3:1.5;--red-6:#fa5252;--red-3:#ffa8a8;--gray-6:#868e96;--indigo-3:#91a7ff;--purple-3:#e599f7;--gray-1:#f1f3f5;--gray-9:#212529;--gray-8:#343a40;--ease-2:cubic-bezier(.25, 0, .4, 1);--font-weight-9:900;--font-lineheight-1:1.25;--font-size-8:3.5rem;--size-header-1:20ch;--font-size-6:2.5rem;--size-header-2:25ch;--font-size-5:2rem;--font-size-4:1.5rem;--font-size-3:1.25rem;--size-header-3:35ch;--font-size-2:1.1rem;--indigo-2:#bac8ff;--purple-2:#eebefa;--size-1:.25rem;--size-2:.5rem;--size-relative-4:1.25ch;--radius-2:5px;--size-3:1rem;--size-10:5rem;--font-mono:Dank Mono,Operator Mono,Inconsolata,Fira Mono,ui-monospace,SF Mono,Monaco,Droid Sans Mono,Source Code Pro,monospace;--border-size-1:1px;--size-8:3rem;--size-content-2:45ch;--size-content-3:60ch;--font-weight-7:700;--size-5:1.5rem;--font-size-0:.75rem;--size-content-1:20ch;--border-size-2:2px;--size-fluid-5:clamp(4rem, 5vw, 5rem);--font-size-1:1rem;--border-size-3:5px;--size-4:1.25rem;--red-9:#c92a2a;--red-2:#ffc9c9;--green-9:#2b8a3e;--green-1:#d3f9d8;--blue-5:#339af0;--radius-3:1rem;--shadow-6:
    0 -1px 2px 0 hsl(var(--shadow-color) / calc(var(--shadow-strength) + 2%)),
    0 3px 2px -2px hsl(var(--shadow-color) / calc(var(--shadow-strength) + 3%)),
    0 7px 5px -2px hsl(var(--shadow-color) / calc(var(--shadow-strength) + 3%)),
    0 12px 10px -2px hsl(var(--shadow-color) / calc(var(--shadow-strength) + 4%)),
    0 22px 18px -2px hsl(var(--shadow-color) / calc(var(--shadow-strength) + 5%)),
    0 41px 33px -2px hsl(var(--shadow-color) / calc(var(--shadow-strength) + 6%)),
    0 100px 80px -2px hsl(var(--shadow-color) / calc(var(--shadow-strength) + 7%));--gray-10:#16191d;--gray-5-hsl:210 11% 71%;--gray-12-hsl:210 40% 2%;--size-relative-7:2ch;--shadow-2:
    0 3px 5px -2px hsl(var(--shadow-color) / calc(var(--shadow-strength) + 3%)),
    0 7px 14px -5px hsl(var(--shadow-color) / calc(var(--shadow-strength) + 5%));--size-relative-6:1.75ch;--ease-3:cubic-bezier(.25, 0, .3, 1);--ease-4:cubic-bezier(.25, 0, .2, 1);--shadow-1:0 1px 2px -1px hsl(var(--shadow-color) / calc(var(--shadow-strength) + 9%));--gray-5:#adb5bd;--inner-shadow-4:inset 0 2px 14px 0 hsl(var(--shadow-color) / calc(var(--shadow-strength) + 9%)), var(--inner-shadow-highlight);--layer-1:1;--gray-3-hsl:210 14% 89%;--gray-10-hsl:214 14% 10%;--size-fluid-1:clamp(.5rem, 1vw, 1rem);--shadow-color:220 3% 15%;--shadow-strength:1%;--inner-shadow-highlight:inset 0 -.5px 0 0 #fff, inset 0 .5px 0 0 #0001}:where(html){--link:var(--indigo-7);--link-visited:var(--purple-7);--text-1:var(--gray-12);--text-2:var(--gray-7);--surface-1:var(--gray-0);--surface-2:var(--gray-2);--surface-3:var(--gray-3);--surface-4:var(--gray-4);--scrollthumb-color:var(--gray-7);-webkit-text-size-adjust:none;accent-color:var(--brand,var(--link));background-color:var(--surface-1);block-size:100%;caret-color:var(--brand,var(--link));color:var(--text-1);color-scheme:light;font-family:var(--font-sans);line-height:var(--font-lineheight-3);scrollbar-color:var(--scrollthumb-color) transparent}@media (dynamic-range:high) or (color-gamut:p3){@supports (color:color(display-p3 0 0 0)){:where(html){--link:color(display-p3 .1 .4 1);--link-visited:color(display-p3 .6 .2 1)}}}:where(html) :where(dialog){background-color:var(--surface-1)}:where(html) :where(button,.btn){--_highlight:var(--_highlight-light);--_bg:var(--_bg-light);--_ink-shadow:var(--_ink-shadow-light)}:where(html) :where(button,.btn) :where([type=reset]){--_text:var(--red-6);--_border:var(--red-3)}:where(html) :where(button,.btn,input:is([type=button],[type=submit],[type=reset]))[disabled]{--_text:var(--gray-6)}:where(html) :where(textarea,select,input:not([type=button],[type=submit],[type=reset])){background-color:var(--surface-2)}@media (prefers-color-scheme:dark){:where(html){--link:var(--indigo-3);--link-visited:var(--purple-3);--text-1:var(--gray-1);--text-2:var(--gray-4);--surface-1:var(--gray-9);--surface-2:var(--gray-8);--surface-3:var(--gray-7);--surface-4:var(--gray-6);--scrollthumb-color:var(--gray-6);--shadow-strength:10%;--shadow-color:220 40% 2%;color-scheme:dark}}:where(a[href]){color:var(--brand,var(--link))}:where(a[href]):where(:visited){color:var(--link-visited)}:focus-visible{outline-color:var(--brand,var(--link))}*,:after,:before{box-sizing:border-box}:where(:not(dialog)){margin:0}:where(:not(fieldset,progress,meter)){background-origin:border-box;background-repeat:no-repeat;border-style:solid;border-width:0}@media (prefers-reduced-motion:no-preference){:where(html){scroll-behavior:smooth}}@media (prefers-reduced-motion:no-preference){:where(:focus-visible){transition:outline-offset 145ms var(--ease-2)}:where(:not(:active):focus-visible){transition-duration:.25s}}:where(:not(:active):focus-visible){outline-offset:5px}:where(body){min-block-size:100%}:where(h1,h2,h3,h4,h5,h6){text-wrap:balance;font-weight:var(--font-weight-9);line-height:var(--font-lineheight-1)}:where(h1){font-size:var(--font-size-8);max-inline-size:var(--size-header-1)}:where(h2){font-size:var(--font-size-6);max-inline-size:var(--size-header-2)}:where(h3){font-size:var(--font-size-5)}:where(h4){font-size:var(--font-size-4)}:where(h5){font-size:var(--font-size-3)}:where(h3,h4,h5,h6,dt){max-inline-size:var(--size-header-3)}:where(p,ul,ol,dl,h6){font-size:var(--font-size-2)}:where(a,u,ins,abbr){text-underline-offset:1px}@supports (-moz-appearance:none){:where(a,u,ins,abbr){text-underline-offset:2px}}:where(a[href],area,button,input:not([type=text],[type=email],[type=number],[type=password],[type=""],[type=tel],[type=url]),label[for],select,summary,[tabindex]:not([tabindex*="-"])){cursor:pointer}:where(a[href],area,button,input,label[for],select,summary,textarea,[tabindex]:not([tabindex*="-"])){-webkit-tap-highlight-color:transparent;touch-action:manipulation}:where(a):where([href]){text-decoration-color:var(--indigo-2)}:where(a):where([href]):where(:visited){text-decoration-color:var(--purple-2)}:where(a):where(:not(:hover)){text-decoration:inherit}:where(img,svg,video,canvas,audio,iframe,embed,object){display:block}:where(img,svg,video){block-size:auto;max-inline-size:100%}:where(input,button,textarea,select),:where(input[type=file])::-webkit-file-upload-button{color:inherit;font:inherit;font-size:inherit;letter-spacing:inherit}::placeholder{color:var(--gray-7);opacity:.75}:where(input:not([type=range]),textarea){padding-block:var(--size-1);padding-inline:var(--size-2)}:where(select){padding-block:.75ch;padding-inline:var(--size-relative-4) 0}:where(textarea,select,input:not([type=button],[type=submit],[type=reset])){background-color:var(--surface-2);border-radius:var(--radius-2)}:where(textarea){resize:block}:where(input[type=checkbox],input[type=radio]){block-size:var(--size-3);inline-size:var(--size-3)}:where(svg:not([width])){inline-size:var(--size-10)}:where(code,kbd,samp,pre){font-family:var(--font-mono)}:where(:not(pre)>code,kbd){white-space:nowrap}:where(pre){direction:ltr;max-inline-size:max-content;min-inline-size:0;white-space:pre;writing-mode:lr}:where(:not(pre)>code){background:var(--surface-2);border-radius:var(--radius-2);padding:var(--size-1) var(--size-2);writing-mode:lr}:where(kbd,var){border-color:var(--surface-4);border-radius:var(--radius-2);border-width:var(--border-size-1);padding:var(--size-1) var(--size-2)}:where(mark){border-radius:var(--radius-2);padding-inline:var(--size-1)}:where(ol,ul){padding-inline-start:var(--size-8)}:where(li){padding-inline-start:var(--size-2)}:where(li,dd,figcaption){max-inline-size:var(--size-content-2)}:where(p){text-wrap:pretty;max-inline-size:var(--size-content-3)}:where(dt,summary){font-weight:var(--font-weight-7)}:where(dt:not(:first-of-type)){margin-block-start:var(--size-5)}:where(small){font-size:max(.5em,var(--font-size-0));max-inline-size:var(--size-content-1)}:where(hr){background-color:var(--surface-3);height:var(--border-size-2);margin-block:var(--size-fluid-5)}:where(figure){display:grid;gap:var(--size-2);place-items:center}:where(figure)>:where(figcaption){text-wrap:balance;font-size:var(--font-size-1)}:where(blockquote,:not(blockquote)>cite){border-inline-start-width:var(--border-size-3)}:where(blockquote){display:grid;gap:var(--size-3);max-inline-size:var(--size-content-2);padding-block:var(--size-3);padding-inline:var(--size-4)}:where(:not(blockquote)>cite){padding-inline-start:var(--size-2)}:where(summary){background:var(--surface-3);border-radius:var(--radius-2);margin:calc(var(--size-2)*-1) calc(var(--size-3)*-1);padding:var(--size-2) var(--size-3)}:where(details){background:var(--surface-2);border-radius:var(--radius-2);padding-block:var(--size-2);padding-inline:var(--size-3)}:where(details[open]>summary){border-end-end-radius:0;border-end-start-radius:0;margin-bottom:var(--size-2)}:where(fieldset){border:var(--border-size-1) solid var(--surface-4);border-radius:var(--radius-2)}:where(del){background:var(--red-9);color:var(--red-2)}:where(ins){background:var(--green-9);color:var(--green-1)}:where(abbr){text-decoration-color:var(--blue-5)}:where(dialog){background-color:var(--surface-1);border-radius:var(--radius-3);box-shadow:var(--shadow-6);color:inherit}:where(dialog)::backdrop{backdrop-filter:blur(25px)}:where(html[\:has\(dialog\[open\]\)]){overflow:hidden}:where(html:has(dialog[open])){overflow:hidden}:where(menu){display:flex;gap:var(--size-3);padding-inline-start:0}:where(sup){font-size:.5em}:where(table){--nice-inner-radius:calc(var(--radius-3) - 2px);background:var(--surface-2);border:1px solid var(--surface-2);border-radius:var(--radius-3);width:fit-content}:where(table[\:not-has\(tfoot\)] tr:last-child td:first-child){border-end-start-radius:var(--nice-inner-radius)}:where(table:not(:has(tfoot)) tr:last-child td:first-child){border-end-start-radius:var(--nice-inner-radius)}:where(table[\:not-has\(tfoot\)] tr:last-child td:last-child){border-end-end-radius:var(--nice-inner-radius)}:where(table:not(:has(tfoot)) tr:last-child td:last-child){border-end-end-radius:var(--nice-inner-radius)}:where(table thead tr:first-child th:first-child){border-start-start-radius:var(--nice-inner-radius)}:where(table thead tr:first-child th:last-child){border-start-end-radius:var(--nice-inner-radius)}:where(tfoot tr:last-child :is(th,td):first-of-type){border-end-start-radius:var(--nice-inner-radius)}:where(tfoot tr:last-child :is(th,td):last-of-type){border-end-end-radius:var(--nice-inner-radius)}:where(th){background-color:var(--surface-2);color:var(--text-1)}:where(table :is(a,button,[contenteditable]):is(:focus-visible)){outline-offset:-2px}:where(td){text-wrap:pretty;background:var(--surface-1);max-inline-size:var(--size-content-2)}:where(td,th){padding:var(--size-2);text-align:left}:where(:is(td,th):not([align])){text-align:center}:where(thead){border-collapse:collapse}:where(table tr:hover td),:where(tbody tr:nth-child(2n):hover td){background-color:var(--gray-10)}@media (prefers-color-scheme:light){:where(table tr:hover td),:where(tbody tr:nth-child(2n):hover td){background-color:#fff}}:where(table>caption){margin:var(--size-3)}:where(tfoot button){padding-block:var(--size-1);padding-inline:var(--size-3)}@media (prefers-color-scheme:dark){:where(textarea,select,input:not([type=button],[type=submit],[type=reset])){background-color:#171a1c}:where(dialog){background-color:var(--surface-2)}::placeholder{color:var(--gray-6)}}:where(html){--gray-0-hsl:210 17% 98%;--gray-1-hsl:210 17% 95%;--gray-2-hsl:210 16% 93%;--gray-3-hsl:210 14% 89%;--gray-4-hsl:210 14% 83%;--gray-5-hsl:210 11% 71%;--gray-6-hsl:210 7% 56%;--gray-7-hsl:210 9% 31%;--gray-8-hsl:210 10% 23%;--gray-9-hsl:210 11% 15%;--gray-10-hsl:214 14% 10%;--gray-11-hsl:216 16% 6%;--gray-12-hsl:210 40% 2%}:where(.btn,button,input:is([type=button],[type=submit],[type=reset])),:where(input[type=file])::-webkit-file-upload-button,:where(input[type=file])::file-selector-button{--_accent:initial;--_text:initial;--_size:initial;--_bg-light:#fff;--_bg-dark:var(--surface-3);--_bg:var(--_bg-light);--_border:var(--surface-3);--_highlight-size:0;--_highlight-light:hsl(var(--gray-5-hsl)/25%);--_highlight-dark:hsl(var(--gray-12-hsl)/25%);--_highlight:var(--_highlight-light);--_ink-shadow-light:0 1px 0 var(--gray-3);--_ink-shadow-dark:0 1px 0 var(--surface-1);--_ink-shadow:var(--_ink-shadow-light);--_icon-size:var(--size-relative-7);--_icon-color:var(--_accent,var(--link));-webkit-tap-highlight-color:transparent;-webkit-touch-callout:none;align-items:center;background:var(--_bg);border:var(--border-size-2) solid var(--_border);border-radius:var(--radius-2);box-shadow:var(--shadow-2),0 1px var(--surface-3),0 0 0 var(--_highlight-size) var(--_highlight);color:var(--_text);display:inline-flex;font-size:var(--_size);font-weight:var(--font-weight-7);gap:var(--size-2);justify-content:center;padding-block:.75ch;padding-inline:var(--size-relative-6);text-align:center;text-shadow:var(--_ink-shadow);transition:border-color .5s var(--ease-3);user-select:none}@media (prefers-color-scheme:dark){:where(.btn,button,input:is([type=button],[type=submit],[type=reset])),:where(input[type=file])::-webkit-file-upload-button,:where(input[type=file])::file-selector-button{--_highlight:var(--_highlight-dark);--_bg:var(--_bg-dark);--_ink-shadow:var(--_ink-shadow-dark)}}@media (prefers-reduced-motion:no-preference){:where(.btn,button,input:is([type=button],[type=submit],[type=reset])),:where(input[type=file])::-webkit-file-upload-button,:where(input[type=file])::file-selector-button{transition:border-color .5s var(--ease-3),box-shadow 145ms var(--ease-4),outline-offset 145ms var(--ease-4)}}:where(.btn,button,input:is([type=button],[type=submit],[type=reset]))[disabled]{--_bg:none;--_text:var(--gray-6);box-shadow:var(--shadow-1);cursor:not-allowed}@media (prefers-color-scheme:dark){:where(.btn,button,input:is([type=button],[type=submit],[type=reset]))[disabled]{--_text:var(--gray-5)}}:where(.btn,button,input:is([type=button],[type=submit],[type=reset])):where(:not(:active):hover){--_highlight-size:var(--size-2);transition-duration:.25s}:where(.btn,button,input:is([type=button],[type=submit],[type=reset]))>:where(svg){block-size:var(--_icon-size);filter:drop-shadow(var(--_ink-shadow));flex-shrink:0;inline-size:var(--_icon-size)}:where(.btn,button,input:is([type=button],[type=submit],[type=reset]))>:where(svg>*){stroke:var(--_icon-color);stroke-width:var(--border-size-2)}:where([type=submit],form button:not([type],[disabled])){--_text:var(--_accent,var(--link))}:where([type=reset]){--_text:var(--red-6);--_border:var(--red-3)}:where([type=reset]):focus-visible{outline-color:var(--red-6)}@media (prefers-color-scheme:dark){:where([type=reset]){--_text:var(--red-2);--_border:var(--surface-3)}}:where([type=submit],[type=reset],form button:not([type])):is(:hover,:focus-visible):not([disabled]){--_border:currentColor}:where(input[type=file]){align-self:flex-start;border:var(--border-size-1) solid var(--surface-2);border-radius:var(--radius-2);box-shadow:var(--inner-shadow-4);color:var(--text-2);cursor:auto;max-inline-size:100%;padding:0}:where(input[type=file])::-webkit-file-upload-button,:where(input[type=file])::file-selector-button{cursor:pointer;margin-inline-end:var(--size-relative-6)}@media (prefers-color-scheme:dark){:where([disabled]),:where([type=reset]),:where([type=submit]),:where(form button:not([type=button])){--_bg:var(--surface-1)}}/*
Deja Vu is released under a Free License. See the files in this directory
for details. This fonts is available on most Linux distributions.
*/@namespace url('http://www.w3.org/1999/xhtml');@namespace m url('http://www.w3.org/1998/Math/MathML');@font-face {
    font-family: DejaVu Math TeX Gyre;
    src: url("../fonts/DejaVu/DejaVuMathTeXGyre.woff2"), url("../fonts/DejaVu/DejaVuMathTeXGyre.woff");
}@font-face {
    font-family: DejaVu Serif;
    src: url("../fonts/DejaVu/DejaVuSerif.woff2"), url("../fonts/DejaVu/DejaVuSerif.woff");
}@font-face {
    font-family: DejaVu Serif;
    src: url("../fonts/DejaVu/DejaVuSerif-Bold.woff2"), url("../fonts/DejaVu/DejaVuSerif-Bold.woff");
    font-weight: bold;
}@font-face {
    font-family: DejaVu Serif;
    src: url("../fonts/DejaVu/DejaVuSerif-Italic.woff2"), url("../fonts/DejaVu/DejaVuSerif-Italic.woff");
    font-style: italic;
}@font-face {
    font-family: DejaVu Serif;
    src: url("../fonts/DejaVu/DejaVuSerif-BoldItalic.woff2"),
         url("../fonts/DejaVu/DejaVuSerif-BoldItalic.woff");
    font-weight: bold;
    font-style: italic;
}.htmlmathparagraph, m|mtext {
    font-family: DejaVu Serif;
}m|math {
    font-family: DejaVu Math TeX Gyre;
}.oldstylenumbers {
    font-variant-numeric: oldstyle-nums;   /* Recommended syntax */
    font-feature-settings: 'onum';         /* OpenType feature syntax */
    -moz-font-feature-settings: 'onum';    /* Gecko <= 33 syntax */
    -webkit-font-feature-settings: 'onum'; /* Blink syntax */
}/* Calligraphic letters do not seem to be available */m|*.calligraphic {
}math {
    display: block;
    padding: var(--size-5);
    font-size: var(--font-size-5);
}body, html {
    margin: 0;
}._chartistry {
    fill: var(--text-1);
}._chartistry ._chartistry_snippet > svg {
    display: inline;
}body {
    display:grid;
}body > .container {
    display: grid;
    place-content: safe center;
    overflow-x: auto;
    padding-block:var(--size-8) var(--size-8);
    margin-bottom: auto;
    flex-grow: 1;
}.nav {
    position:absolute;
    margin: 0;
    z-index:var(--layer-1);
    top: 0;
    right: 0;
    left: 0;
    overflow-x:auto;
    padding-block:var(--size-2) var(--size-5);
    padding-inline:var(--size-2) var(--size-4);
    
    @media (min-width: 768px) {
        padding-inline-start:var(--size-8); 
        padding-inline-end:var(--size-8); 
    }

    display:flex;
    align-items: center;
    white-space: nowrap;
    gap: var(--size-4);

    background-image:linear-gradient(to bottom,hsl(var(--gray-3-hsl) / 98%) 1ch,75%,hsl(var(--gray-3-hsl) / 0%));
    @media (prefers-color-scheme: dark) {
        background-image:linear-gradient(to bottom,hsl(var(--gray-10-hsl) / 98%) 1ch,75%,hsl(var(--gray-10-hsl) / 0%));
    }
}.nav a[href]:not(:hover,:focus-visible) {
    color: var(--text-1);
    text-decoration-color: var(--link);
}.nav a.in-view {
    text-decoration: underline double;
    text-underline-offset: 4px;
}[data-theme=light] .nav {
    padding-block-start: var(--size-3);
    background: var(--surface-1);
}.nav > li {
    display: inline-block;
}.nav > li#right {
    margin-left: auto;
}.footer {
    position:sticky;
    height: fit-content;
    margin: 0;
    margin-top: auto;
    z-index:var(--layer-1);
    bottom: 0;
    right: 0;
    left: 0;
    overflow-x:auto;
    padding-block:var(--size-3) var(--size-1);
    padding-inline:var(--size-2) var(--size-4);
    
    @media (min-width: 768px) {
        padding-inline-start:var(--size-8); 
        padding-inline-end:var(--size-8); 
    }

    display:flex;
    align-items: center;
    white-space: nowrap;
    gap: var(--size-4);

    background-image:linear-gradient(to top,hsl(var(--gray-3-hsl) / 98%) 1ch,75%,hsl(var(--gray-3-hsl) / 0%));
    @media (prefers-color-scheme: dark) {
        background-image:linear-gradient(to top,hsl(var(--gray-10-hsl) / 98%) 1ch,75%,hsl(var(--gray-10-hsl) / 0%));
    }
}.footer > li {
    display: inline-block;
}section {
    padding-block: var(--size-fluid-1);
}ul.error-list {
    color: var(--red-9);
    list-style-type: none;
    padding: var(--size-1);
}.error {
    color: var(--red-9);
}.block-wrap {
    display: flex;
    flex-wrap: wrap;
    flex-basis: var(--size-content-2);
    gap: var(--size-5) var(--size-8);
    align-items: flex-start;
}@media (prefers-color-scheme: dark){:root{--shadow-color:220 40% 2%;--shadow-strength:25%;--inner-shadow-highlight:inset 0 -.5px 0 0 #fff1, inset 0 .5px 0 0 #0007}}