/* The site wears the console's colours and typefaces (internal/frontend/web/assets/style.css),
   so a screenshot looks at home on the page that shows it. */
@font-face { font-family: "Newsreader"; src: url("newsreader.woff2") format("woff2"); font-weight: 400 600; font-display: swap; }
@font-face { font-family: "Instrument Sans"; src: url("instrument-sans.woff2") format("woff2"); font-weight: 400 600; font-display: swap; }
@font-face { font-family: "Nodwyn Console Mono"; src: url("plex-mono-400.woff2") format("woff2"); font-weight: 400; font-display: swap; }
@font-face { font-family: "Nodwyn Console Mono"; src: url("plex-mono-500.woff2") format("woff2"); font-weight: 500; font-display: swap; }

:root {
  --serif: "Newsreader", Georgia, serif;
  --sans: "Instrument Sans", system-ui, -apple-system, "Segoe UI", sans-serif;
  --mono: "Nodwyn Console Mono", ui-monospace, "SF Mono", Menlo, monospace;
  color-scheme: light dark;
  --bg: light-dark(#f5f2ea, #171613);
  --side: light-dark(#efebe2, #1d1b18);
  --surface: light-dark(#fcfbf8, #22201c);
  --line: light-dark(#ddd7ca, #34312b);
  --ink: light-dark(#1c1b18, #ece7dc);
  --ink-2: light-dark(#3a3731, #d6d0c3);
  --muted: light-dark(#57534a, #b5ae9f);
  --faint: light-dark(#6e695e, #958e80);
  --accent: light-dark(#2f4fc4, #4b68d9);
  --link: light-dark(#2f4fc4, #9db0f5);
  --code-bg: light-dark(#fffdf9, #1e1c19);
  --warn-bg: light-dark(#fff8ee, #2a1f15);
  --warn-line: light-dark(#e8c39b, #6b4420);
  --shadow: 0 1px 0 light-dark(rgba(28,27,24,.04), rgba(0,0,0,.2)), 0 18px 40px -24px light-dark(rgba(28,27,24,.35), rgba(0,0,0,.7));
}

* { box-sizing: border-box; }
html { scroll-padding-top: 4.5rem; }
body { margin: 0; background: var(--bg); color: var(--ink); font: 16px/1.65 var(--sans); -webkit-font-smoothing: antialiased; }
a { color: var(--link); text-underline-offset: 2px; }
a:hover { color: var(--ink); }
:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; }
code, kbd, pre { font-family: var(--mono); font-size: .88em; }

/* ---------- header ---------- */
.top { position: sticky; top: 0; z-index: 5; display: flex; align-items: center; justify-content: space-between; gap: 1rem; padding: .7rem 1.25rem; background: color-mix(in srgb, var(--bg) 92%, transparent); backdrop-filter: blur(8px); border-bottom: 1px solid var(--line); }
.brand { font: 600 1.55rem/1 var(--serif); color: var(--ink); text-decoration: none; letter-spacing: -.01em; }
.brand span { color: var(--accent); }
.top nav { display: flex; gap: 1.25rem; font-size: .95rem; }
.top nav a { color: var(--muted); text-decoration: none; }
.top nav a:hover { color: var(--ink); }

/* ---------- layout ---------- */
.layout { display: grid; grid-template-columns: 15.5rem minmax(0, 1fr) 14rem; gap: 2.5rem; max-width: 84rem; margin: 0 auto; padding: 0 1.25rem; }
.side { font-size: .93rem; }
.side.wide { position: sticky; top: 3.6rem; align-self: start; max-height: calc(100vh - 4rem); overflow: auto; padding: 1.5rem 0 2rem; }
.side h3 { margin: 1.4rem 0 .35rem; font: 600 .72rem/1.2 var(--sans); letter-spacing: .09em; text-transform: uppercase; color: var(--faint); }
.side h3:first-child { margin-top: 0; }
.side ul { list-style: none; margin: 0; padding: 0; }
.side li a { display: block; padding: .22rem .6rem; margin-left: -.6rem; border-radius: 6px; color: var(--ink-2); text-decoration: none; }
.side li a:hover { background: var(--side); }
.side li a[aria-current] { background: var(--side); color: var(--ink); font-weight: 600; }
.menu { display: none; }
.toc { position: sticky; top: 3.6rem; align-self: start; max-height: calc(100vh - 4rem); overflow: auto; padding: 2.2rem 0; font-size: .85rem; }
.toc h4 { margin: 0 0 .5rem; font: 600 .72rem/1.2 var(--sans); letter-spacing: .09em; text-transform: uppercase; color: var(--faint); }
.toc ul { list-style: none; margin: 0; padding: 0; }
.toc ul ul { padding-left: .8rem; }
.toc a { display: block; padding: .15rem 0; color: var(--muted); text-decoration: none; }
.toc a:hover { color: var(--ink); }
main { min-width: 0; padding: 2.2rem 0 4rem; }
article { max-width: 46rem; }
.reference article, .decision article { max-width: 52rem; }

/* ---------- prose ---------- */
h1, h2, h3, h4 { font-family: var(--serif); font-weight: 500; line-height: 1.2; letter-spacing: -.01em; }
h1 { font-size: 2.5rem; margin: 0 0 1rem; }
h2 { font-size: 1.75rem; margin: 2.6rem 0 .6rem; padding-top: .4rem; }
h3 { font-size: 1.3rem; margin: 2rem 0 .4rem; }
h4 { font-size: 1.1rem; margin: 1.6rem 0 .3rem; }
p, ul, ol, table, pre, blockquote { margin: 0 0 1.05rem; }
li { margin: .2rem 0; }
blockquote { padding: .1rem 1rem; border-left: 3px solid var(--line); color: var(--muted); }
hr { border: 0; border-top: 1px solid var(--line); margin: 2rem 0; }
:not(pre) > code { background: var(--side); border: 1px solid var(--line); border-radius: 5px; padding: .08em .35em; }
pre, .hl { background: var(--code-bg); border: 1px solid var(--line); border-radius: 10px; padding: .85rem 1rem; overflow-x: auto; line-height: 1.5; }
.hl pre { border: 0; padding: 0; margin: 0; background: transparent; }
.hl { margin: 0 0 1.05rem; }
table { border-collapse: collapse; display: block; overflow-x: auto; font-size: .93rem; }
th, td { text-align: left; vertical-align: top; padding: .45rem .8rem; border-bottom: 1px solid var(--line); }
th { font-weight: 600; color: var(--muted); }
kbd { background: var(--surface); border: 1px solid var(--line); border-bottom-width: 2px; border-radius: 5px; padding: .05em .4em; }

.shot { margin: 1.6rem 0 1.8rem; }
.shot img { display: block; width: 100%; height: auto; border: 1px solid var(--line); border-radius: 12px; box-shadow: var(--shadow); }
.shot figcaption { margin-top: .55rem; font-size: .85rem; color: var(--faint); }
.shot.phone img { max-width: 18rem; margin: 0 auto; }
.shot.phone figcaption { text-align: center; }
.pair { display: grid; grid-template-columns: repeat(auto-fit, minmax(14rem, 1fr)); gap: 1.4rem; align-items: start; }
.pair .shot img { max-width: 20rem; margin: 0 auto; }
.note { background: var(--warn-bg); border: 1px solid var(--warn-line); border-radius: 10px; padding: .7rem 1rem; margin: 0 0 1.05rem; }
.note p:last-child { margin-bottom: 0; }
footer { margin-top: 4rem; padding-top: 1rem; border-top: 1px solid var(--line); color: var(--faint); font-size: .85rem; }

/* ---------- landing ---------- */
body.home .layout { grid-template-columns: minmax(0, 1fr); max-width: 64rem; }
body.home .side, body.home .menu, body.home .toc { display: none; }
body.home article { max-width: none; }
body.home h1 { font-size: clamp(2.6rem, 6vw, 4.2rem); margin-top: 1.5rem; }
body.home .lede { font: 400 1.35rem/1.5 var(--serif); color: var(--ink-2); max-width: 40rem; }
body.home .ways { display: grid; grid-template-columns: repeat(auto-fit, minmax(15rem, 1fr)); gap: 1.2rem; margin: 2rem 0; }
body.home .ways div { background: var(--surface); border: 1px solid var(--line); border-radius: 12px; padding: 1rem 1.2rem; }
body.home .ways h3 { margin-top: 0; }

/* ---------- narrow screens ---------- */
@media (max-width: 1180px) { .layout { grid-template-columns: 15.5rem minmax(0, 1fr); } .toc { display: none; } }
@media (max-width: 820px) {
  .layout { grid-template-columns: minmax(0, 1fr); gap: 0; }
  .side.wide { display: none; }
  .menu { display: block; margin-top: .8rem; border: 1px solid var(--line); border-radius: 10px; background: var(--surface); }
  .menu summary { cursor: pointer; padding: .55rem .9rem; font-weight: 600; }
  .menu .side { padding: 0 .9rem 1rem 1.5rem; }
  h1 { font-size: 2rem; }
  .top nav { gap: .9rem; font-size: .88rem; }
}
@media (max-width: 480px) { .top nav a:nth-child(3) { display: none; } }

/* Code colours: pygments' default (light) and native (dark). */
pre { line-height: 125%; }
td.linenos .normal { color: inherit; background-color: transparent; padding-left: 5px; padding-right: 5px; }
span.linenos { color: inherit; background-color: transparent; padding-left: 5px; padding-right: 5px; }
td.linenos .special { color: #000000; background-color: #ffffc0; padding-left: 5px; padding-right: 5px; }
span.linenos.special { color: #000000; background-color: #ffffc0; padding-left: 5px; padding-right: 5px; }
.hl .hll { background-color: #ffffcc }
.hl { background: #f8f8f8; }
.hl .c { color: #3D7B7B; font-style: italic } /* Comment */
.hl .err { border: 1px solid #F00 } /* Error */
.hl .k { color: #008000; font-weight: bold } /* Keyword */
.hl .o { color: #666 } /* Operator */
.hl .ch { color: #3D7B7B; font-style: italic } /* Comment.Hashbang */
.hl .cm { color: #3D7B7B; font-style: italic } /* Comment.Multiline */
.hl .cp { color: #9C6500 } /* Comment.Preproc */
.hl .cpf { color: #3D7B7B; font-style: italic } /* Comment.PreprocFile */
.hl .c1 { color: #3D7B7B; font-style: italic } /* Comment.Single */
.hl .cs { color: #3D7B7B; font-style: italic } /* Comment.Special */
.hl .gd { color: #A00000 } /* Generic.Deleted */
.hl .ge { font-style: italic } /* Generic.Emph */
.hl .ges { font-weight: bold; font-style: italic } /* Generic.EmphStrong */
.hl .gr { color: #E40000 } /* Generic.Error */
.hl .gh { color: #000080; font-weight: bold } /* Generic.Heading */
.hl .gi { color: #008400 } /* Generic.Inserted */
.hl .go { color: #717171 } /* Generic.Output */
.hl .gp { color: #000080; font-weight: bold } /* Generic.Prompt */
.hl .gs { font-weight: bold } /* Generic.Strong */
.hl .gu { color: #800080; font-weight: bold } /* Generic.Subheading */
.hl .gt { color: #04D } /* Generic.Traceback */
.hl .kc { color: #008000; font-weight: bold } /* Keyword.Constant */
.hl .kd { color: #008000; font-weight: bold } /* Keyword.Declaration */
.hl .kn { color: #008000; font-weight: bold } /* Keyword.Namespace */
.hl .kp { color: #008000 } /* Keyword.Pseudo */
.hl .kr { color: #008000; font-weight: bold } /* Keyword.Reserved */
.hl .kt { color: #B00040 } /* Keyword.Type */
.hl .m { color: #666 } /* Literal.Number */
.hl .s { color: #BA2121 } /* Literal.String */
.hl .na { color: #687822 } /* Name.Attribute */
.hl .nb { color: #008000 } /* Name.Builtin */
.hl .nc { color: #00F; font-weight: bold } /* Name.Class */
.hl .no { color: #800 } /* Name.Constant */
.hl .nd { color: #A2F } /* Name.Decorator */
.hl .ni { color: #717171; font-weight: bold } /* Name.Entity */
.hl .ne { color: #CB3F38; font-weight: bold } /* Name.Exception */
.hl .nf { color: #00F } /* Name.Function */
.hl .nl { color: #767600 } /* Name.Label */
.hl .nn { color: #00F; font-weight: bold } /* Name.Namespace */
.hl .nt { color: #008000; font-weight: bold } /* Name.Tag */
.hl .nv { color: #19177C } /* Name.Variable */
.hl .ow { color: #A2F; font-weight: bold } /* Operator.Word */
.hl .w { color: #BBB } /* Text.Whitespace */
.hl .mb { color: #666 } /* Literal.Number.Bin */
.hl .mf { color: #666 } /* Literal.Number.Float */
.hl .mh { color: #666 } /* Literal.Number.Hex */
.hl .mi { color: #666 } /* Literal.Number.Integer */
.hl .mo { color: #666 } /* Literal.Number.Oct */
.hl .sa { color: #BA2121 } /* Literal.String.Affix */
.hl .sb { color: #BA2121 } /* Literal.String.Backtick */
.hl .sc { color: #BA2121 } /* Literal.String.Char */
.hl .dl { color: #BA2121 } /* Literal.String.Delimiter */
.hl .sd { color: #BA2121; font-style: italic } /* Literal.String.Doc */
.hl .s2 { color: #BA2121 } /* Literal.String.Double */
.hl .se { color: #AA5D1F; font-weight: bold } /* Literal.String.Escape */
.hl .sh { color: #BA2121 } /* Literal.String.Heredoc */
.hl .si { color: #A45A77; font-weight: bold } /* Literal.String.Interpol */
.hl .sx { color: #008000 } /* Literal.String.Other */
.hl .sr { color: #A45A77 } /* Literal.String.Regex */
.hl .s1 { color: #BA2121 } /* Literal.String.Single */
.hl .ss { color: #19177C } /* Literal.String.Symbol */
.hl .bp { color: #008000 } /* Name.Builtin.Pseudo */
.hl .fm { color: #00F } /* Name.Function.Magic */
.hl .vc { color: #19177C } /* Name.Variable.Class */
.hl .vg { color: #19177C } /* Name.Variable.Global */
.hl .vi { color: #19177C } /* Name.Variable.Instance */
.hl .vm { color: #19177C } /* Name.Variable.Magic */
.hl .il { color: #666 } /* Literal.Number.Integer.Long */
@media (prefers-color-scheme: dark) {
pre { line-height: 125%; }
td.linenos .normal { color: #aaaaaa; background-color: transparent; padding-left: 5px; padding-right: 5px; }
span.linenos { color: #aaaaaa; background-color: transparent; padding-left: 5px; padding-right: 5px; }
td.linenos .special { color: #000000; background-color: #ffffc0; padding-left: 5px; padding-right: 5px; }
span.linenos.special { color: #000000; background-color: #ffffc0; padding-left: 5px; padding-right: 5px; }
.hl .hll { background-color: #404040 }
.hl { background: #202020; color: #D0D0D0 }
.hl .c { color: #ABABAB; font-style: italic } /* Comment */
.hl .err { color: #A61717; background-color: #E3D2D2 } /* Error */
.hl .esc { color: #D0D0D0 } /* Escape */
.hl .g { color: #D0D0D0 } /* Generic */
.hl .k { color: #6EBF26; font-weight: bold } /* Keyword */
.hl .l { color: #D0D0D0 } /* Literal */
.hl .n { color: #D0D0D0 } /* Name */
.hl .o { color: #D0D0D0 } /* Operator */
.hl .x { color: #D0D0D0 } /* Other */
.hl .p { color: #D0D0D0 } /* Punctuation */
.hl .ch { color: #ABABAB; font-style: italic } /* Comment.Hashbang */
.hl .cm { color: #ABABAB; font-style: italic } /* Comment.Multiline */
.hl .cp { color: #FF3A3A; font-weight: bold } /* Comment.Preproc */
.hl .cpf { color: #ABABAB; font-style: italic } /* Comment.PreprocFile */
.hl .c1 { color: #ABABAB; font-style: italic } /* Comment.Single */
.hl .cs { color: #E50808; font-weight: bold; background-color: #520000 } /* Comment.Special */
.hl .gd { color: #FF3A3A } /* Generic.Deleted */
.hl .ge { color: #D0D0D0; font-style: italic } /* Generic.Emph */
.hl .ges { color: #D0D0D0; font-weight: bold; font-style: italic } /* Generic.EmphStrong */
.hl .gr { color: #FF3A3A } /* Generic.Error */
.hl .gh { color: #FFF; font-weight: bold } /* Generic.Heading */
.hl .gi { color: #589819 } /* Generic.Inserted */
.hl .go { color: #CCC } /* Generic.Output */
.hl .gp { color: #AAA } /* Generic.Prompt */
.hl .gs { color: #D0D0D0; font-weight: bold } /* Generic.Strong */
.hl .gu { color: #FFF; text-decoration: underline } /* Generic.Subheading */
.hl .gt { color: #FF3A3A } /* Generic.Traceback */
.hl .kc { color: #6EBF26; font-weight: bold } /* Keyword.Constant */
.hl .kd { color: #6EBF26; font-weight: bold } /* Keyword.Declaration */
.hl .kn { color: #6EBF26; font-weight: bold } /* Keyword.Namespace */
.hl .kp { color: #6EBF26 } /* Keyword.Pseudo */
.hl .kr { color: #6EBF26; font-weight: bold } /* Keyword.Reserved */
.hl .kt { color: #6EBF26; font-weight: bold } /* Keyword.Type */
.hl .ld { color: #D0D0D0 } /* Literal.Date */
.hl .m { color: #51B2FD } /* Literal.Number */
.hl .s { color: #ED9D13 } /* Literal.String */
.hl .na { color: #BBB } /* Name.Attribute */
.hl .nb { color: #2FBCCD } /* Name.Builtin */
.hl .nc { color: #71ADFF; text-decoration: underline } /* Name.Class */
.hl .no { color: #40FFFF } /* Name.Constant */
.hl .nd { color: #FFA500 } /* Name.Decorator */
.hl .ni { color: #D0D0D0 } /* Name.Entity */
.hl .ne { color: #BBB } /* Name.Exception */
.hl .nf { color: #71ADFF } /* Name.Function */
.hl .nl { color: #D0D0D0 } /* Name.Label */
.hl .nn { color: #71ADFF; text-decoration: underline } /* Name.Namespace */
.hl .nx { color: #D0D0D0 } /* Name.Other */
.hl .py { color: #D0D0D0 } /* Name.Property */
.hl .nt { color: #6EBF26; font-weight: bold } /* Name.Tag */
.hl .nv { color: #40FFFF } /* Name.Variable */
.hl .ow { color: #6EBF26; font-weight: bold } /* Operator.Word */
.hl .pm { color: #D0D0D0 } /* Punctuation.Marker */
.hl .w { color: #666 } /* Text.Whitespace */
.hl .mb { color: #51B2FD } /* Literal.Number.Bin */
.hl .mf { color: #51B2FD } /* Literal.Number.Float */
.hl .mh { color: #51B2FD } /* Literal.Number.Hex */
.hl .mi { color: #51B2FD } /* Literal.Number.Integer */
.hl .mo { color: #51B2FD } /* Literal.Number.Oct */
.hl .sa { color: #ED9D13 } /* Literal.String.Affix */
.hl .sb { color: #ED9D13 } /* Literal.String.Backtick */
.hl .sc { color: #ED9D13 } /* Literal.String.Char */
.hl .dl { color: #ED9D13 } /* Literal.String.Delimiter */
.hl .sd { color: #ED9D13 } /* Literal.String.Doc */
.hl .s2 { color: #ED9D13 } /* Literal.String.Double */
.hl .se { color: #ED9D13 } /* Literal.String.Escape */
.hl .sh { color: #ED9D13 } /* Literal.String.Heredoc */
.hl .si { color: #ED9D13 } /* Literal.String.Interpol */
.hl .sx { color: #FFA500 } /* Literal.String.Other */
.hl .sr { color: #ED9D13 } /* Literal.String.Regex */
.hl .s1 { color: #ED9D13 } /* Literal.String.Single */
.hl .ss { color: #ED9D13 } /* Literal.String.Symbol */
.hl .bp { color: #2FBCCD } /* Name.Builtin.Pseudo */
.hl .fm { color: #71ADFF } /* Name.Function.Magic */
.hl .vc { color: #40FFFF } /* Name.Variable.Class */
.hl .vg { color: #40FFFF } /* Name.Variable.Global */
.hl .vi { color: #40FFFF } /* Name.Variable.Instance */
.hl .vm { color: #40FFFF } /* Name.Variable.Magic */
.hl .il { color: #51B2FD } /* Literal.Number.Integer.Long */
}