/* e2 documentation — shared stylesheet.
   Light palette on :root, dark palette under prefers-color-scheme.
   Code blocks are always dark so one set of highlight tokens serves both themes. */

:root {
  --bg: #F4F5F3;
  --surface: #FFFFFF;
  --surface-2: #ECEEEA;
  --line: #D6DAD4;
  --line-strong: #B4BBB3;
  --ink: #1A1F24;
  --muted: #5B6570;
  --faint: #8791A0;
  --accent: #2544C9;
  --accent-ink: #1B34A6;
  --accent-soft: #E4E9FB;
  --pass: #1E7F55;
  --pass-soft: #DDF0E6;
  --fail: #B8332C;
  --fail-soft: #F8E1DF;
  --warn: #9A6A12;
  --warn-soft: #F6ECD3;
  --code-bg: #1B2027;
  --code-ink: #E4E8EE;
  --code-gutter: #6B7684;
  --kw: #8FA8FF;
  --str: #B9E29B;
  --typ: #7ED3D6;
  --com: #7C8794;
  --ys: #FFB35C;
  --num: #F5A3A3;
  --display: 'Bricolage Grotesque', 'Helvetica Neue', Arial, sans-serif;
  --body: 'Source Serif 4', Georgia, 'Times New Roman', serif;
  --mono: 'JetBrains Mono', ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  --radius: 6px;
  color-scheme: light;
}
@media (prefers-color-scheme: dark) {
  :root {
    --bg: #121519;
    --surface: #191D23;
    --surface-2: #20252C;
    --line: #2B323B;
    --line-strong: #3C4552;
    --ink: #E7EAEE;
    --muted: #9AA5B1;
    --faint: #6F7A87;
    --accent: #8CA2FF;
    --accent-ink: #B3C1FF;
    --accent-soft: #1F2A52;
    --pass: #5FCF96;
    --pass-soft: #12331F;
    --fail: #F07E76;
    --fail-soft: #3E1B19;
    --warn: #E0B15A;
    --warn-soft: #3A2D12;
    --code-bg: #0D1014;
    --code-gutter: #5C6672;
    color-scheme: dark;
  }
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
@media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } }
body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font-family: var(--body);
  font-size: 17px;
  line-height: 1.55;
  -webkit-font-smoothing: antialiased;
}
a { color: var(--accent-ink); text-decoration-thickness: 1px; text-underline-offset: 3px; }
a:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; border-radius: 2px; }
code, kbd, pre { font-family: var(--mono); }
p code, li code, td code, th code, dd code, h1 code, h2 code, h3 code, h4 code, .lede code, figcaption code, .callout code {
  font-size: .86em;
  background: var(--surface-2);
  border: 1px solid var(--line);
  border-radius: 4px;
  padding: 1px 5px;
  white-space: nowrap;
}
h1, h2, h3, h4 { font-family: var(--display); text-wrap: balance; margin: 0; }
h1 { font-size: clamp(32px, 4.5vw, 48px); font-weight: 700; line-height: 1.05; letter-spacing: -.02em; }
h2 { font-size: clamp(24px, 3vw, 30px); font-weight: 600; line-height: 1.15; letter-spacing: -.015em; }
h3 { font-size: 20px; font-weight: 600; line-height: 1.25; }
h4 { font-size: 17px; font-weight: 600; }
p { margin: 0; }
.y { color: var(--accent); font-weight: 600; font-family: var(--mono); font-style: normal; }

/* ---- shell: sidebar + main ------------------------------------------------ */
.shell { display: grid; grid-template-columns: 252px minmax(0, 1fr); min-height: 100vh; }
nav.side {
  position: sticky; top: 0; height: 100vh; overflow-y: auto;
  border-right: 1px solid var(--line);
  padding: 28px 22px;
  display: flex; flex-direction: column; gap: 22px;
  background: var(--bg);
}
.brand { display: flex; align-items: baseline; gap: 10px; text-decoration: none; color: var(--ink); }
.brand .mark { font-family: var(--display); font-weight: 700; font-size: 26px; letter-spacing: -.02em; }
.brand .tag { font-family: var(--mono); font-size: 11px; text-transform: uppercase; letter-spacing: .12em; color: var(--muted); }
nav.side ol { list-style: none; margin: 0; padding: 0; display: grid; gap: 2px; }
nav.side ol a {
  display: block; padding: 7px 10px; border-radius: 4px;
  color: var(--ink); text-decoration: none; font-family: var(--display); font-weight: 500; font-size: 15px;
}
nav.side ol a:hover { background: var(--surface-2); }
nav.side ol a[aria-current="page"] { background: var(--accent-soft); color: var(--accent-ink); }
nav.side .onpage { border-top: 1px solid var(--line); padding-top: 16px; }
nav.side .onpage .lbl { font-family: var(--mono); font-size: 11px; text-transform: uppercase; letter-spacing: .12em; color: var(--muted); margin-bottom: 8px; }
nav.side .onpage a { font-family: var(--body); font-weight: 400; font-size: 14px; color: var(--muted); padding: 4px 10px; }
nav.side .onpage a:hover { color: var(--ink); }
.side-foot { margin-top: auto; font-family: var(--mono); font-size: 11.5px; color: var(--muted); line-height: 1.7; }
main { padding: 44px 56px 120px; max-width: 1080px; width: 100%; }
@media (max-width: 920px) {
  .shell { grid-template-columns: 1fr; }
  nav.side { position: static; height: auto; border-right: 0; border-bottom: 1px solid var(--line); }
  nav.side .onpage { display: none; }
  main { padding: 28px 20px 80px; }
}

/* ---- page structure ------------------------------------------------------ */
.eyebrow { font-family: var(--mono); font-size: 12px; text-transform: uppercase; letter-spacing: .12em; color: var(--muted); }
header.page { display: grid; gap: 16px; padding-bottom: 28px; border-bottom: 1px solid var(--line); }
header.page .lede { font-size: 19.5px; line-height: 1.45; max-width: 66ch; }
section { padding-top: 48px; display: grid; gap: 20px; }
section + section { margin-top: 12px; border-top: 1px solid var(--line); }
.head { display: grid; gap: 8px; max-width: 72ch; }
.prose { max-width: 70ch; display: grid; gap: 14px; }
.prose ul, .prose ol { margin: 0; padding-left: 1.3em; display: grid; gap: 8px; }
.prose li::marker { color: var(--muted); }
.wide { max-width: none; }

/* ---- code ---------------------------------------------------------------- */
pre.code {
  margin: 0; background: var(--code-bg); color: var(--code-ink);
  border-radius: var(--radius); padding: 16px 18px; overflow-x: auto;
  font-size: 13.25px; line-height: 1.6; tab-size: 2;
}
/* Undo the inline-code chip (and its nowrap) for code inside a block, wherever the block sits. */
pre.code code { font-size: inherit; white-space: inherit; background: none; border: 0; padding: 0; border-radius: 0; color: inherit; }
pre.code .k { color: var(--kw); }
pre.code .s { color: var(--str); }
pre.code .t { color: var(--typ); }
pre.code .c { color: var(--com); font-style: italic; }
pre.code .n { color: var(--num); }
pre.code .y { color: var(--ys); font-weight: 600; }
pre.code .line { display: block; padding: 0 12px; margin: 0 -12px; }
pre.code .line.del { background: rgba(240, 126, 118, .16); }
pre.code .line.add { background: rgba(95, 207, 150, .14); }
pre.code .line::before { display: inline-block; width: 1.4em; color: var(--code-gutter); content: " "; }
pre.code .line.del::before { content: "−"; color: #F07E76; }
pre.code .line.add::before { content: "+"; color: #5FCF96; }
.figure { display: grid; gap: 10px; }
.caption { font-family: var(--mono); font-size: 12.5px; color: var(--muted); display: flex; gap: 10px; align-items: baseline; flex-wrap: wrap; }
.caption .lbl { text-transform: uppercase; letter-spacing: .1em; font-size: 11px; }
.caption code { background: none; border: 0; padding: 0; color: var(--ink); white-space: normal; font-size: 12.5px; }
.compare { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; align-items: start; }
@media (max-width: 860px) { .compare { grid-template-columns: 1fr; } }

/* ---- diagnostics ---------------------------------------------------------- */
.diagnostic { border: 1px solid var(--line); border-radius: var(--radius); overflow: hidden; background: var(--surface); }
.diagnostic header { display: flex; gap: 12px; align-items: center; padding: 10px 14px; border-bottom: 1px solid var(--line); background: var(--surface-2); font-size: 14.5px; }
.diagnostic header .code { font-family: var(--mono); font-size: 11.5px; padding: 2px 7px; border-radius: 4px; background: var(--fail-soft); color: var(--fail); font-weight: 600; letter-spacing: .04em; }
.diagnostic pre { margin: 0; padding: 14px 16px; font-size: 12.75px; line-height: 1.55; overflow-x: auto; color: var(--ink); background: var(--surface); white-space: pre-wrap; }
.diagnostic pre .hi { color: var(--fail); font-weight: 600; }
.diagnostic pre .dim { color: var(--faint); }

/* ---- tables ---------------------------------------------------------------- */
table { border-collapse: collapse; width: 100%; font-size: 15px; }
.tablewrap { overflow-x: auto; border: 1px solid var(--line); border-radius: var(--radius); background: var(--surface); }
th, td { text-align: left; padding: 10px 14px; vertical-align: top; border-bottom: 1px solid var(--line); }
th { font-family: var(--mono); font-size: 11.5px; text-transform: uppercase; letter-spacing: .1em; color: var(--muted); font-weight: 500; background: var(--surface-2); }
tr:last-child td { border-bottom: 0; }
td code { white-space: nowrap; }

/* ---- figures (svg) ---------------------------------------------------------- */
figure.svg { margin: 0; border: 1px solid var(--line); border-radius: var(--radius); background: var(--surface); padding: 16px 12px 8px; overflow-x: auto; }
figure.svg svg { display: block; width: 100%; height: auto; min-width: 640px; font-family: var(--mono); }
figure.svg .lbl { font-size: 12px; fill: var(--ink); }
figure.svg .sub { font-size: 11px; fill: var(--muted); }
figure.svg .big { font-size: 13px; font-weight: 600; fill: var(--ink); }
figure.svg .axis { stroke: var(--line-strong); stroke-width: 1; }
figure.svg .bar { fill: var(--surface-2); stroke: var(--line-strong); stroke-width: 1; }
figure.svg .bar.acc { fill: var(--accent-soft); stroke: var(--accent); }
figure.svg .bar.pass { fill: var(--pass-soft); stroke: var(--pass); }
figure.svg .bar.warn { fill: var(--warn-soft); stroke: var(--warn); }
figure.svg .bar.fail { fill: var(--fail-soft); stroke: var(--fail); }
figure.svg .edge { stroke: var(--ink); stroke-width: 1.25; fill: none; }
figure.svg .edge.acc { stroke: var(--accent); }
figure.svg .edge.fail { stroke: var(--fail); }
figure.svg .edge.faint { stroke: var(--line-strong); stroke-dasharray: 3 4; }
figure.svg .node { fill: var(--surface-2); stroke: var(--line-strong); stroke-width: 1; }
figure.svg .node.acc { fill: var(--accent-soft); stroke: var(--accent); }
figure.svg .node.pass { fill: var(--pass-soft); stroke: var(--pass); }
figure.svg .node.warn { fill: var(--warn-soft); stroke: var(--warn); }
figure.svg .node.ink { fill: var(--code-bg); stroke: var(--code-bg); }
figure.svg .onink { fill: var(--code-ink); }
figure.svg .nodelbl { font-size: 13px; font-weight: 600; fill: var(--ink); text-anchor: middle; }
figure.svg .edgelbl { font-size: 11px; fill: var(--muted); }
figure.svg .edgelbl.acc { fill: var(--accent-ink); }
figure.svg .edgelbl.fail { fill: var(--fail); }
figure.svg .arrowhead { fill: var(--ink); }
figure.svg .arrowhead.acc { fill: var(--accent); }
figure.svg .arrowhead.fail { fill: var(--fail); }
figcaption { font-size: 14px; color: var(--muted); padding: 10px 6px 4px; }

/* ---- callouts, cards, steps ------------------------------------------------ */
.callout { border-left: 3px solid var(--accent); padding: 4px 0 4px 16px; max-width: 70ch; }
.callout.warn { border-color: var(--warn); }
.callout.fail { border-color: var(--fail); }
.callout .t { font-family: var(--mono); font-size: 11.5px; text-transform: uppercase; letter-spacing: .1em; color: var(--muted); display: block; margin-bottom: 4px; }
.cards { display: grid; grid-template-columns: repeat(auto-fit, minmax(240px, 1fr)); gap: 14px; }
.card { border: 1px solid var(--line); border-radius: var(--radius); background: var(--surface); padding: 16px 18px; display: grid; gap: 8px; align-content: start; text-decoration: none; color: var(--ink); }
.card:hover { border-color: var(--line-strong); }
.card h3 { font-size: 18px; }
.card p { font-size: 15px; color: var(--muted); }
.card .go { font-family: var(--mono); font-size: 12px; color: var(--accent-ink); }
.steps { list-style: none; margin: 0; padding: 0; counter-reset: step; display: grid; gap: 0; max-width: 72ch; }
.steps > li { display: grid; grid-template-columns: 44px 1fr; gap: 12px; padding: 14px 0; border-bottom: 1px solid var(--line); counter-increment: step; }
.steps > li::before { content: counter(step, decimal-leading-zero); font-family: var(--mono); font-size: 13px; color: var(--accent); font-weight: 600; padding-top: 4px; }
.steps > li > div { display: grid; gap: 10px; }
.steps b { font-family: var(--display); font-weight: 600; }
.chips { display: flex; flex-wrap: wrap; gap: 8px; font-family: var(--mono); font-size: 12.5px; }
.chip { padding: 5px 10px; border: 1px solid var(--line); border-radius: 999px; background: var(--surface); color: var(--ink); }
.chip .k { color: var(--muted); }
.kv { display: grid; grid-template-columns: max-content 1fr; gap: 6px 18px; font-size: 15px; }
.kv dt { font-family: var(--mono); font-size: 13px; color: var(--ink); }
.kv dd { margin: 0; color: var(--muted); }
.gone { color: var(--muted); text-decoration: line-through; text-decoration-color: var(--fail); }
.honest { color: var(--muted); font-size: 15px; }
.pagenav { display: flex; justify-content: space-between; gap: 16px; margin-top: 64px; padding-top: 18px; border-top: 1px solid var(--line); font-family: var(--display); font-weight: 500; }
.pagenav a { text-decoration: none; }
.pagenav .lbl { display: block; font-family: var(--mono); font-size: 11px; text-transform: uppercase; letter-spacing: .1em; color: var(--muted); }

/* ---- playground -------------------------------------------------------------- */
main.playground { max-width: none; padding-bottom: 40px; display: grid; gap: 18px; align-content: start; }
main.playground header.page { padding-bottom: 18px; }
main.playground header.page .lede { font-size: 17px; }
nav.side ol.keys { gap: 6px; }
nav.side ol.keys li { font-size: 13px; color: var(--muted); padding: 0 10px; }
kbd { font-family: var(--mono); font-size: 11px; border: 1px solid var(--line-strong); border-bottom-width: 2px; border-radius: 4px; padding: 0 4px; background: var(--surface); color: var(--ink); }
.pg-toolbar { display: flex; flex-wrap: wrap; align-items: center; gap: 8px; }
.pg-toolbar button, .pg-panel-head button, .pg-select select {
  font: 500 14px/1 var(--display); color: var(--ink); background: var(--surface);
  border: 1px solid var(--line-strong); border-radius: var(--radius); padding: 8px 14px; cursor: pointer;
}
.pg-toolbar button:hover:not(:disabled), .pg-panel-head button:hover { border-color: var(--ink); }
.pg-toolbar button:disabled { opacity: .45; cursor: default; }
.pg-toolbar button.primary { background: var(--accent); border-color: var(--accent); color: #fff; }
.pg-toolbar button.primary:hover { background: var(--accent-ink); border-color: var(--accent-ink); }
@media (prefers-color-scheme: dark) { .pg-toolbar button.primary { color: #0D1014; } }
.pg-toolbar :focus-visible, .pg-panel button:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; }
.pg-select { display: flex; align-items: center; gap: 8px; font-family: var(--mono); font-size: 12px; text-transform: uppercase; letter-spacing: .1em; color: var(--muted); margin-right: 4px; }
.pg-select select { text-transform: none; letter-spacing: 0; padding-right: 28px; }
#pg-status { font-family: var(--mono); font-size: 12.5px; color: var(--muted); margin-left: auto; }
#pg-status[data-state="running"] { color: var(--warn); }
#pg-status[data-state="ok"] { color: var(--pass); }
#pg-status[data-state="failed"] { color: var(--fail); }

.pg-grid { display: grid; grid-template-columns: minmax(0, 1.35fr) minmax(0, 1fr); gap: 14px; height: max(560px, calc(100vh - 250px)); }
.pg-editor { border-radius: var(--radius); overflow: hidden; background: var(--code-bg); min-height: 0; }
.pg-side { display: grid; grid-template-rows: minmax(0, 1.6fr) minmax(0, 1fr); gap: 14px; min-height: 0; }
.pg-panel { display: grid; grid-template-rows: auto minmax(0, 1fr); border-radius: var(--radius); min-height: 0; overflow: hidden; }
.pg-panel-head { display: flex; align-items: center; justify-content: space-between; gap: 8px; padding: 8px 12px; font-family: var(--mono); font-size: 11.5px; text-transform: uppercase; letter-spacing: .1em; }
.pg-panel-head button { font-size: 12px; padding: 4px 10px; }
.pg-panel ol { list-style: none; margin: 0; padding: 8px 0; overflow: auto; font-family: var(--mono); font-size: 12.75px; line-height: 1.55; }

.pg-console { background: var(--code-bg); color: var(--code-ink); }
.pg-console .pg-panel-head { color: var(--code-gutter); border-bottom: 1px solid #2B323B; }
.pg-console .pg-panel-head button { background: transparent; color: var(--code-ink); border-color: #3C4552; }
.pg-console li { padding: 2px 14px; white-space: pre-wrap; overflow-wrap: anywhere; border-left: 2px solid transparent; }
.pg-console li.warn { color: #E0B15A; border-left-color: #E0B15A; background: rgba(224, 177, 90, .07); }
.pg-console li.error { color: #F07E76; border-left-color: #F07E76; background: rgba(240, 126, 118, .08); }
.pg-console li.debug, .pg-console li.system { color: var(--com); font-style: italic; }

.pg-problems { background: var(--surface); border: 1px solid var(--line); }
.pg-problems .pg-panel-head { color: var(--muted); background: var(--surface-2); border-bottom: 1px solid var(--line); }
.pg-problems .count { text-transform: none; letter-spacing: 0; }
.pg-problems li button { display: grid; grid-template-columns: 4.5em 1fr; gap: 8px; width: 100%; text-align: left; border: 0; background: none; padding: 5px 14px; font: inherit; color: var(--ink); cursor: pointer; }
.pg-problems li button:hover { background: var(--surface-2); }
.pg-problems .where { color: var(--muted); }
.pg-problems .err .where { color: var(--fail); }
.pg-problems .warn .where { color: var(--warn); }
.pg-problems .msg { white-space: pre-wrap; overflow-wrap: anywhere; }

@media (max-width: 1180px) {
  .pg-grid { grid-template-columns: 1fr; height: auto; }
  .pg-editor { height: 62vh; min-height: 420px; }
  .pg-side { grid-template-rows: auto auto; }
  .pg-console ol { min-height: 220px; max-height: 50vh; }
  .pg-problems ol { max-height: 40vh; }
}
.caption a { margin-left: auto; font-size: 12px; }

/* ---- guides ------------------------------------------------------------------ */
.guide-index { list-style: none; margin: 28px 0 0; padding: 0; display: grid; grid-template-columns: repeat(auto-fill, minmax(230px, 1fr)); gap: 10px; }
.guide-index a { display: grid; grid-template-columns: 30px 1fr; gap: 2px 10px; padding: 12px 14px; border: 1px solid var(--line); border-radius: var(--radius); background: var(--surface); color: var(--ink); text-decoration: none; height: 100%; }
.guide-index a:hover { border-color: var(--accent); }
.guide-index .n { grid-row: span 2; font-family: var(--mono); font-weight: 600; color: var(--accent); font-size: 15px; line-height: 1.6; }
.guide-index .t { font-family: var(--display); font-weight: 600; font-size: 16px; }
.guide-index .d { font-size: 14px; color: var(--muted); line-height: 1.4; }
.guide-head { display: flex; justify-content: space-between; align-items: end; gap: 16px; flex-wrap: wrap; }
.try { font-family: var(--display); font-weight: 600; font-size: 14px; text-decoration: none; color: #fff; background: var(--accent); border-radius: var(--radius); padding: 8px 14px; white-space: nowrap; }
.try:hover { background: var(--accent-ink); }
@media (prefers-color-scheme: dark) { .try { color: #0D1014; } }
.problem { font-size: 18px; line-height: 1.5; max-width: 70ch; color: var(--ink); }
section.guide .steps { max-width: 900px; }
section.guide .steps > li > div > p { max-width: 70ch; }
section.guide .callout { max-width: 76ch; }