/* Cookwala site v2. One stylesheet for pages, docs, whitepaper and essays. Logical properties so Arabic (dir=rtl) needs no mirror. See site/DESIGN.md. */
:root {
  --paper: #f6f7f8; --surface: #ffffff; --ink: #121417; --ink-2: #4a5059; --line: #dfe2e6; --band: #eef0f3;
  --ember: #c43f16; --ember-ink: #ffffff; --ember-soft: #fbe6de; --tag-ink: #ffffff;
  --ok: #1f7a4d; --warn: #9a5b00; --bad: #b42318;
  --sans: "Geist", "IBM Plex Sans Arabic", ui-sans-serif, system-ui, -apple-system, "Segoe UI", sans-serif;
  --mono: "Geist Mono", ui-monospace, SFMono-Regular, Menlo, monospace;
  --radius: 14px; --gutter: 20px;
}
@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) { --paper: #0f1113; --surface: #16191c; --ink: #eceef0; --ink-2: #a6adb6; --line: #2a2f35; --band: #14171a;
    --ember: #ff7a45; --ember-ink: #1a0b05; --ember-soft: #2c1810; --ok: #4cc38a; --warn: #e2a64d; --bad: #f2867d; --tag-ink: #0f1113; color-scheme: dark; }
}
:root[data-theme="dark"] { --paper: #0f1113; --surface: #16191c; --ink: #eceef0; --ink-2: #a6adb6; --line: #2a2f35; --band: #14171a;
  --ember: #ff7a45; --ember-ink: #1a0b05; --ember-soft: #2c1810; --ok: #4cc38a; --warn: #e2a64d; --bad: #f2867d; --tag-ink: #0f1113; color-scheme: dark; }
:root[data-theme="light"] { color-scheme: light; }
[dir="rtl"] { --sans: "IBM Plex Sans Arabic", "Geist", ui-sans-serif, system-ui, sans-serif; }

* { box-sizing: border-box; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
@media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } *, *::before, *::after { animation: none !important; transition: none !important; } }
body { margin: 0; background: var(--paper); color: var(--ink); font: 16px/1.6 var(--sans); }
.wrap { max-width: 1120px; margin-inline: auto; padding-inline: var(--gutter); min-width: 0; }
main, section, .band { min-width: 0; max-width: 100%; }
body { overflow-x: hidden; }
@media (max-width: 480px) { :root { --gutter: 16px; } }
a { color: var(--ember); text-underline-offset: 2px; }
a:focus-visible, button:focus-visible, select:focus-visible, input:focus-visible, summary:focus-visible, [tabindex]:focus-visible { outline: 2px solid var(--ember); outline-offset: 2px; }
code, pre, kbd { font-family: var(--mono); font-size: .9em; }
img, svg { max-width: 100%; }
.sr { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; }
.skip { position: absolute; inset-inline-start: -999px; } .skip:focus { inset-inline-start: 12px; top: 12px; background: var(--surface); padding: 8px 12px; z-index: 20; border-radius: 8px; }

/* ---- header */
.nav { position: sticky; top: 0; z-index: 10; background: color-mix(in srgb, var(--paper) 90%, transparent); backdrop-filter: blur(8px); border-bottom: 1px solid var(--line); }
.nav-in { display: flex; align-items: center; justify-content: space-between; gap: 16px; padding-block: 10px; flex-wrap: wrap; }
.brand { display: flex; align-items: center; gap: 9px; color: var(--ink); text-decoration: none; font-weight: 600; letter-spacing: -.01em; font-size: 18px; }
.wordmark { font-family: Fraunces, Georgia, 'Times New Roman', serif; font-weight: 600; font-size: 22px; letter-spacing: -.02em; line-height: 1; } [lang="ar"] .wordmark, [lang="ur"] .wordmark, [lang="fa"] .wordmark, [lang="ps"] .wordmark { font-family: inherit; font-size: 20px; }
.brand .mark { width: 28px; height: 28px; color: var(--ink); flex: none; }
.docs-tag { font: 500 12px/1 var(--mono); color: var(--ink-2); border: 1px solid var(--line); border-radius: 6px; padding: 3px 6px; }
.nav nav { display: flex; gap: 6px 18px; flex-wrap: wrap; align-items: center; }
.nav nav > a { color: var(--ink-2); text-decoration: none; font-size: 15px; padding: 4px 0; }
.nav nav > a:hover, .nav nav > a[aria-current="page"] { color: var(--ink); }
.nav nav > a[aria-current="page"] { border-bottom: 2px solid var(--ember); }
.nav .lang { font-weight: 500; border: 1px solid var(--line); border-radius: 999px; padding: 3px 10px !important; }
.menu-btn, .theme-btn { font: inherit; color: var(--ink); background: var(--surface); border: 1px solid var(--line); border-radius: 8px; padding: 6px 10px; cursor: pointer; }
.menu-btn { display: none; }
.more { position: relative; } .more summary { list-style: none; cursor: pointer; color: var(--ink-2); font-size: 15px; padding: 4px 0; } .more summary::-webkit-details-marker { display: none; } .more summary::after { content: " ▾"; font-size: 12px; }
.more-list { position: absolute; top: 100%; inset-inline-start: 0; background: var(--surface); border: 1px solid var(--line); border-radius: 12px; padding: 8px; display: grid; min-width: 240px; z-index: 11; box-shadow: 0 8px 24px rgba(0,0,0,.08); }
.more-list a { color: var(--ink-2); text-decoration: none; padding: 7px 10px; border-radius: 8px; font-size: 14px; } .more-list a:hover { background: var(--band); color: var(--ink); }
@media (max-width: 860px) {
  .menu-btn { display: inline-block; }
  .nav nav { display: none; width: 100%; flex-direction: column; align-items: stretch; gap: 2px; padding-block: 6px 10px; }
  .nav nav.open { display: flex; }
  .nav nav > a, .more summary { padding: 8px 4px; font-size: 16px; }
  .more-list { position: static; box-shadow: none; border: 0; padding-inline-start: 12px; }
  .nav .lang { align-self: flex-start; }
}

/* ---- type */
h1 { font-weight: 300; font-size: clamp(34px, 6vw, 72px); overflow-wrap: anywhere; line-height: 1.04; letter-spacing: -.03em; margin: 20px 0 24px; text-wrap: balance; }
[dir="rtl"] h1 { letter-spacing: 0; font-weight: 400; line-height: 1.25; }
h1 .soft { color: var(--ink-2); }
h2 { font-weight: 500; font-size: clamp(25px, 3vw, 34px); line-height: 1.15; letter-spacing: -.02em; margin: 0 0 14px; text-wrap: balance; }
[dir="rtl"] h2 { letter-spacing: 0; line-height: 1.35; }
h3 { font-weight: 600; font-size: 17px; margin: 0 0 6px; }
.lead { font-size: clamp(18px, 2vw, 22px); color: var(--ink-2); max-width: 62ch; margin: 0 0 20px; }
.sub, .note, .sec-head p { color: var(--ink-2); margin: 0; max-width: 70ch; }
.note { font-size: 13px; }
.small-h { font-size: 14px; font-weight: 600; text-transform: uppercase; letter-spacing: .06em; color: var(--ink-2); }
[dir="rtl"] .small-h { letter-spacing: 0; }
.crumb { font: 500 12px/1 var(--mono); color: var(--ink-2); margin: 0 0 8px; }
.crumb a { color: inherit; }

/* ---- chips and statuses */
.chip { display: inline-flex; gap: 8px; align-items: center; font: 500 12px/1 var(--mono); color: var(--ink-2); border: 1px solid var(--line); border-radius: 999px; padding: 6px 12px; margin: 0 0 6px; text-transform: uppercase; letter-spacing: .04em; }
.dot { width: 8px; height: 8px; border-radius: 50%; background: var(--ember); flex: none; }
.dot.draft, .dot.exp, .dot.planned, .dot.funded { background: var(--warn); } .dot.model { background: var(--ink-2); } .dot.core { background: var(--ok); }
.status { font: 500 10px/1 var(--mono); color: var(--warn); margin-inline-start: 6px; text-transform: uppercase; } .status.core { color: var(--ok); } .status.model { color: var(--ink-2); }
.kind { font: 500 11px/1 var(--mono); text-transform: uppercase; letter-spacing: .06em; color: var(--ink-2); }
.kind.measured { color: var(--ok); } .kind.modelled { color: var(--warn); } .kind.assumed { color: var(--ink-2); }

/* ---- sections */
section { padding-block: 56px; }
.hero { padding-block: 64px 48px; }
.hero-for { padding-block: 48px 8px; }
.band { background: var(--band); border-block: 1px solid var(--line); }
.sec-head { max-width: 760px; margin-bottom: 22px; }
.cta { display: flex; gap: 12px; flex-wrap: wrap; } .cta.col { flex-direction: column; align-items: stretch; }
.btn { display: inline-block; padding: 11px 18px; border-radius: 10px; border: 1px solid var(--line); color: var(--ink); background: var(--surface); text-decoration: none; font-weight: 500; font: inherit; cursor: pointer; text-align: center; }
.btn:hover { border-color: var(--ink-2); }
.btn.primary { background: var(--ember); border-color: var(--ember); color: var(--ember-ink); }
.two { display: grid; gap: 32px; grid-template-columns: repeat(auto-fit, minmax(300px, 1fr)); align-items: start; } .two > * { min-width: 0; } .two p { color: var(--ink-2); }
.three { display: grid; gap: 18px; grid-template-columns: repeat(auto-fit, minmax(260px, 1fr)); }
.cards { display: grid; gap: 14px; grid-template-columns: repeat(auto-fit, minmax(250px, 1fr)); }
.card { display: grid; gap: 6px; align-content: start; background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius); padding: 18px; text-decoration: none; color: var(--ink); min-width: 0; }
a.card:hover { border-color: var(--ink); }
.card p { margin: 0; color: var(--ink-2); font-size: 15px; } .card .go { margin-top: 8px; color: var(--ember); font-size: 14px; font-weight: 500; }
.triad { list-style: none; padding: 0; margin: 0 0 28px; display: grid; gap: 10px; grid-template-columns: repeat(auto-fit, minmax(240px, 1fr)); max-width: 980px; }
.triad li { border-top: 2px solid var(--ink); padding-top: 12px; color: var(--ink-2); } .triad b { color: var(--ink); display: block; font-weight: 600; }
.loop { list-style: none; padding: 0; margin: 0; display: grid; gap: 14px; grid-template-columns: repeat(auto-fit, minmax(230px, 1fr)); }
.loop li { background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius); padding: 16px; display: grid; gap: 4px; align-content: start; min-width: 0; }
.loop .n { font: 500 13px/1 var(--mono); color: var(--ember); } .loop p { margin: 0 0 8px; color: var(--ink-2); font-size: 15px; }
.loop code { font-size: 12.5px; background: var(--paper); border: 1px solid var(--line); border-radius: 6px; padding: 6px 8px; overflow-wrap: anywhere; display: block; }
.stats { display: grid; gap: 1px; grid-template-columns: repeat(auto-fit, minmax(190px, 1fr)); background: var(--line); border: 1px solid var(--line); border-radius: var(--radius); overflow: hidden; margin: 18px 0 10px; }
.stat { background: var(--surface); padding: 16px; display: grid; gap: 4px; align-content: start; }
.stat .v { font: 300 40px/1 var(--sans); letter-spacing: -.02em; font-variant-numeric: tabular-nums; } .stat .l { color: var(--ink-2); font-size: 14px; } .stat.planned .v { color: var(--ink-2); }
.road { display: grid; gap: 14px; grid-template-columns: repeat(auto-fit, minmax(260px, 1fr)); }
.road > div { border-top: 2px solid var(--ink); padding-top: 12px; } .road > div:nth-child(2) { border-color: var(--ember); } .road > div:nth-child(3) { border-color: var(--line); }
.road ul { margin: 0; padding-inline-start: 18px; color: var(--ink-2); display: grid; gap: 6px; }
ul.links { list-style: none; padding: 0; margin: 0; } ul.links li { display: flex; justify-content: space-between; gap: 12px; flex-wrap: wrap; padding: 10px 0; border-bottom: 1px solid var(--line); } ul.links span { color: var(--ink-2); font-size: 14px; }
.ticks { list-style: none; padding: 0; margin: 0 0 18px; display: grid; gap: 8px; color: var(--ink); } .ticks li { padding-inline-start: 22px; position: relative; } .ticks li::before { content: "✓"; position: absolute; inset-inline-start: 0; color: var(--ok); font-weight: 600; }
.steps { list-style: none; counter-reset: s; padding: 0; margin: 0; display: grid; gap: 14px; }
.steps li { counter-increment: s; position: relative; padding-inline-start: 44px; } .steps li::before { content: counter(s); position: absolute; inset-inline-start: 0; top: 0; width: 28px; height: 28px; border-radius: 50%; background: var(--ember); color: var(--ember-ink); font: 600 13px/28px var(--mono); text-align: center; }
.steps p { margin: 0 0 6px; }
.sheet { display: grid; grid-template-columns: max-content 1fr; gap: 8px 18px; margin: 0; font-size: 15px; } .sheet dt { color: var(--ink-2); } .sheet dd { margin: 0; font-family: var(--mono); font-size: 14px; }
.know { border: 1px solid var(--line); border-radius: var(--radius); padding: 16px 18px; background: var(--surface); } .know h3 { color: var(--ink-2); font-size: 13px; text-transform: uppercase; letter-spacing: .06em; } .know ul { margin: 0; padding-inline-start: 18px; color: var(--ink-2); }
[dir="rtl"] .know h3 { letter-spacing: 0; }
.quote { border-inline-start: 3px solid var(--ember); padding: 6px 16px; color: var(--ink-2); margin: 16px 0; font-size: 17px; }
.table-wrap { overflow-x: auto; max-width: 100%; }
table { border-collapse: collapse; width: 100%; font-size: 14px; }
th, td { text-align: start; padding: 8px 10px; border-bottom: 1px solid var(--line); vertical-align: top; }
th { font: 500 12px/1.2 var(--mono); color: var(--ink-2); text-transform: uppercase; letter-spacing: .04em; background: var(--band); }
.pill { font: 500 12px/1 var(--mono); padding: 4px 8px; border-radius: 999px; border: 1px solid var(--line); white-space: nowrap; }
.pill.device { border-color: var(--ink); } .pill.human { border-color: var(--warn); color: var(--warn); } .pill.no { border-color: var(--bad); color: var(--bad); } .pill.ok { border-color: var(--ok); color: var(--ok); }

/* ---- code */
pre.code, .codeblock pre { margin: 0; background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius); padding: 16px 18px; overflow-x: auto; line-height: 1.5; direction: ltr; text-align: left; }
.codeblock { position: relative; margin: 14px 0; } .codeblock .lang { position: absolute; top: 8px; inset-inline-end: 52px; font: 500 11px/1 var(--mono); color: var(--ink-2); text-transform: uppercase; }
button.copy { position: absolute; top: 8px; inset-inline-end: 8px; font: 500 12px/1 var(--mono); color: var(--ink-2); background: var(--paper); border: 1px solid var(--line); border-radius: 6px; padding: 5px 8px; cursor: pointer; }
pre.code { position: relative; }
.output { margin: -8px 0 14px; background: var(--band); border: 1px dashed var(--line); border-radius: 0 0 var(--radius) var(--radius); padding: 10px 18px; font-family: var(--mono); font-size: 13px; color: var(--ink-2); white-space: pre-wrap; direction: ltr; text-align: left; }
.output::before { content: "output"; display: block; font-size: 10px; text-transform: uppercase; letter-spacing: .08em; margin-bottom: 4px; }
:not(pre) > code { background: var(--band); border: 1px solid var(--line); border-radius: 5px; padding: 1px 5px; overflow-wrap: anywhere; direction: ltr; unicode-bidi: embed; }

/* ---- demo */
.demo { background: var(--surface); border: 1px solid var(--line); border-radius: 16px; padding: 18px; display: grid; gap: 14px; min-width: 0; }
.demo > *, .demo details > * { min-width: 0; max-width: 100%; }
.controls { display: flex; flex-wrap: wrap; gap: 12px 20px; align-items: center; }
.controls label { display: flex; gap: 8px; align-items: center; color: var(--ink-2); font-size: 14px; max-width: 100%; min-width: 0; flex: 1 1 240px; }
.controls label.check { flex-basis: auto; }
.controls select, .controls input[type="text"], .controls input[type="number"] { max-width: 100%; min-width: 0; flex: 1 1 8em; width: auto; font: inherit; color: var(--ink); background: var(--paper); border: 1px solid var(--line); border-radius: 8px; padding: 6px 8px; }
.controls .check input { accent-color: var(--ember); width: 16px; height: 16px; }
.verdict { border-radius: 10px; padding: 12px 14px; font-weight: 500; border: 1px solid var(--line); background: var(--paper); }
.verdict.ok { border-color: var(--ok); } .verdict.bad { border-color: var(--bad); }
.verdict .tag { font: 600 12px/1 var(--mono); padding: 4px 8px; border-radius: 6px; margin-inline-end: 8px; color: var(--tag-ink); vertical-align: 2px; }
.verdict.ok .tag { background: var(--ok); } .verdict.bad .tag { background: var(--bad); }
table.steps-t td.op, table.steps-t td.band { font-family: var(--mono); font-size: 13px; white-space: nowrap; direction: ltr; }
table.steps-t tr.refused td { background: color-mix(in srgb, var(--bad) 10%, transparent); } table.steps-t tr.pending td { color: var(--ink-2); opacity: .55; }
.builder { display: grid; gap: 10px; grid-template-columns: repeat(auto-fit, minmax(200px, 1fr)); } .builder fieldset { border: 1px solid var(--line); border-radius: 10px; padding: 10px 12px; margin: 0; min-width: 0; max-width: 100%; }
.builder { min-width: 0; } .builder label { min-width: 0; overflow-wrap: anywhere; } .builder legend { font: 500 12px/1 var(--mono); color: var(--ink-2); text-transform: uppercase; padding: 0 4px; }
.builder label { display: flex; gap: 8px; align-items: center; font-size: 14px; padding: 2px 0; } .builder input { accent-color: var(--ember); }
.share { display: flex; gap: 10px; align-items: center; flex-wrap: wrap; font-size: 14px; color: var(--ink-2); } .share input { flex: 1 1 200px; min-width: 0; font: 13px var(--mono); color: var(--ink); background: var(--paper); border: 1px solid var(--line); border-radius: 8px; padding: 6px 8px; direction: ltr; }
.envelope { display: grid; gap: 14px; grid-template-columns: minmax(0, 1.4fr) minmax(0, 1fr); min-width: 0; } .envelope > * { min-width: 0; } @media (max-width: 760px) { .envelope { grid-template-columns: 1fr; } }
.envelope svg { width: 100%; height: auto; background: var(--paper); border: 1px solid var(--line); border-radius: 12px; touch-action: none; }
.sms { display: grid; gap: 14px; grid-template-columns: minmax(0, 1fr) minmax(0, 1.2fr); } @media (max-width: 760px) { .sms { grid-template-columns: 1fr; } }
.sms .phone { background: var(--paper); border: 1px solid var(--line); border-radius: 18px; padding: 14px; display: grid; gap: 8px; min-height: 260px; align-content: start; }
.sms .msg { max-width: 85%; padding: 8px 12px; border-radius: 14px; font: 14px var(--mono); direction: ltr; text-align: left; } .sms .msg.out { background: var(--ember-soft); color: var(--ink); justify-self: end; } .sms .msg.in { background: var(--surface); border: 1px solid var(--line); }
.sms form { display: flex; gap: 8px; min-width: 0; } .sms > * { min-width: 0; } .sms input { flex: 1; min-width: 0; font: 14px var(--mono); color: var(--ink); background: var(--paper); border: 1px solid var(--line); border-radius: 8px; padding: 8px; direction: ltr; }
.sms .docs-out { display: grid; gap: 8px; } .sms pre { margin: 0; font-size: 12px; max-height: 320px; overflow: auto; }
.pathfinder { background: var(--surface); border: 1px solid var(--line); border-radius: 16px; padding: 18px; display: grid; gap: 12px; }
.pathfinder .row { display: flex; gap: 12px; flex-wrap: wrap; align-items: center; font-size: 16px; } .pathfinder .row label { display: flex; gap: 8px; align-items: center; flex: 1 1 280px; min-width: 0; } .pathfinder select { font: inherit; color: var(--ink); background: var(--paper); border: 1px solid var(--line); border-radius: 8px; padding: 8px 10px; max-width: 100%; min-width: 0; flex: 1 1 auto; width: 100%; }
.pathfinder .result { border-top: 1px solid var(--line); padding-top: 12px; color: var(--ink-2); } .pathfinder .result b { color: var(--ink); }
.pathfinder noscript ul { columns: 2; }

/* ---- for pages */
.for-grid { display: grid; gap: 40px; grid-template-columns: minmax(0, 2fr) minmax(260px, 1fr); padding-top: 8px; } @media (max-width: 860px) { .for-grid { grid-template-columns: 1fr; } }
.for-main h2, .for-side h2 { font-size: 20px; margin-top: 28px; } .for-main h2:first-child, .for-side h2:first-child { margin-top: 0; }
.prose-lite p { color: var(--ink); margin: 0 0 12px; max-width: 70ch; }
.options, .flow { padding-inline-start: 22px; display: grid; gap: 8px; color: var(--ink); max-width: 70ch; } .options li b { font-weight: 600; }
.first { background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius); padding: 14px 18px; } .first p { margin: 0 0 8px; }
.others { display: flex; gap: 8px; flex-wrap: wrap; } .others a { text-decoration: none; color: var(--ink); border: 1px solid var(--line); border-radius: 999px; padding: 6px 12px; font-size: 14px; background: var(--surface); } .others a:hover { border-color: var(--ink); }

/* ---- docs */
.docs { display: grid; grid-template-columns: 240px minmax(0, 1fr) 200px; gap: 36px; padding-block: 28px 64px; align-items: start; }
@media (max-width: 1100px) { .docs { grid-template-columns: 220px minmax(0, 1fr); } .onpage { display: none; } }
@media (max-width: 760px) { .docs { grid-template-columns: 1fr; } .side { position: static !important; max-height: none !important; order: 2; border-top: 1px solid var(--line); padding-top: 16px; } }
.side, .onpage, .paper-side { position: sticky; top: 72px; max-height: calc(100vh - 96px); overflow-y: auto; }
.search input { width: 100%; font: inherit; font-size: 14px; color: var(--ink); background: var(--surface); border: 1px solid var(--line); border-radius: 8px; padding: 8px 10px; margin-bottom: 14px; }
#toc h4 { font: 500 11px/1 var(--mono); text-transform: uppercase; letter-spacing: .06em; color: var(--ink-2); margin: 18px 0 8px; }
#toc a { display: block; padding: 5px 8px; border-radius: 6px; color: var(--ink-2); text-decoration: none; font-size: 14px; }
#toc a:hover { color: var(--ink); background: var(--band); } #toc a[aria-current="page"] { color: var(--ink); background: var(--ember-soft); font-weight: 500; }
.doc { min-width: 0; outline: none; }
.doc-bar { display: flex; justify-content: space-between; gap: 12px; flex-wrap: wrap; align-items: center; border-bottom: 1px solid var(--line); padding-bottom: 10px; margin-bottom: 8px; }
.doc-actions { display: flex; gap: 12px; align-items: center; font-size: 13px; } .doc-actions button { font: inherit; color: var(--ink); background: var(--surface); border: 1px solid var(--line); border-radius: 8px; padding: 5px 10px; cursor: pointer; }
.prose { max-width: 78ch; } .prose h1 { font-size: clamp(30px, 4vw, 44px); margin: 18px 0 16px; font-weight: 400; } .prose h2 { font-size: 26px; margin: 40px 0 12px; padding-top: 8px; } .prose h3 { font-size: 19px; margin: 28px 0 8px; } .prose h4 { margin: 20px 0 6px; }
.prose p, .prose li { color: var(--ink); } .prose li { margin: 4px 0; }
.prose blockquote { margin: 16px 0; padding: 10px 16px; border-inline-start: 3px solid var(--ember); background: var(--surface); border-radius: 0 8px 8px 0; color: var(--ink-2); } .prose blockquote p { margin: 6px 0; color: inherit; }
.prose table { font-size: 14px; } .prose th { text-transform: none; letter-spacing: 0; font: 600 14px/1.3 var(--sans); color: var(--ink); }
.prose hr { border: 0; border-top: 1px solid var(--line); margin: 32px 0; }
.prose a.anchor { opacity: 0; margin-inline-start: 6px; text-decoration: none; } .prose h2:hover a.anchor, .prose h3:hover a.anchor, .prose a.anchor:focus { opacity: 1; }
.op-h { font: 500 11px/1 var(--mono); text-transform: uppercase; letter-spacing: .06em; color: var(--ink-2); margin: 6px 0 10px; }
.onpage ul, .paper-side ul { list-style: none; padding: 0; margin: 0; display: grid; gap: 6px; } .onpage a, .paper-side a { color: var(--ink-2); text-decoration: none; font-size: 13px; } .onpage a:hover, .paper-side a:hover { color: var(--ink); }
.pager { display: flex; justify-content: space-between; gap: 12px; margin-top: 48px; padding-top: 16px; border-top: 1px solid var(--line); flex-wrap: wrap; }
.pager a { display: grid; gap: 2px; text-decoration: none; color: var(--ink); border: 1px solid var(--line); border-radius: 10px; padding: 10px 14px; min-width: 200px; } .pager a span { font: 500 11px/1 var(--mono); color: var(--ink-2); text-transform: uppercase; } .pager a.next { text-align: end; margin-inline-start: auto; }
.docs-landing { padding-block: 40px 64px; } .docs-landing section { padding-block: 10px; } .doclist { list-style: none; padding: 0; margin: 0 0 10px; display: grid; gap: 4px; grid-template-columns: repeat(auto-fit, minmax(260px, 1fr)); } .doclist a { text-decoration: none; color: var(--ink); } .doclist a:hover { color: var(--ember); }

/* ---- whitepaper and essays */
.paper { display: grid; grid-template-columns: 220px minmax(0, 1fr); gap: 40px; padding-block: 32px 64px; align-items: start; } @media (max-width: 860px) { .paper { grid-template-columns: 1fr; } .paper-side { position: static; max-height: none; } }
.paper-actions { display: grid; gap: 8px; margin-top: 18px; } .paper-body { max-width: 74ch; }
.essay { padding-block: 32px 64px; } .essay .prose { max-width: 68ch; font-size: 17px; } .essay .prose p { line-height: 1.75; }
.essay-more { margin-top: 48px; border-top: 1px solid var(--line); padding-top: 18px; max-width: 68ch; } .essay-more h2 { font-size: 18px; }

/* ---- footer */
.foot { border-top: 1px solid var(--line); padding-block: 28px calc(28px + env(safe-area-inset-bottom, 0px)); color: var(--ink-2); font-size: 14px; }
.foot-in { display: grid; gap: 8px; } .foot-tagline { color: var(--ink); font-weight: 500; } .foot-links { display: flex; gap: 6px 14px; flex-wrap: wrap; } .foot-links a { color: var(--ink-2); }

/* ---- deck */
.deck-page main { padding: 0; }
.deck { height: 100vh; display: grid; grid-template-rows: 1fr auto; }
.slide { display: none; padding: clamp(24px, 6vw, 72px); max-width: 1120px; margin-inline: auto; width: 100%; align-content: center; } .slide.active { display: grid; gap: 18px; }
.slide h1 { margin: 0; } .slide h2 { font-size: clamp(28px, 4vw, 48px); margin: 0; } .slide p, .slide li { font-size: clamp(17px, 1.6vw, 22px); color: var(--ink-2); } .slide ul { margin: 0; padding-inline-start: 22px; display: grid; gap: 8px; }
.slide .big { font-size: clamp(22px, 2.6vw, 34px); color: var(--ink); max-width: 30ch; }
.deck-bar { display: flex; justify-content: space-between; align-items: center; gap: 12px; padding: 10px var(--gutter); border-top: 1px solid var(--line); font-size: 14px; color: var(--ink-2); }
.deck-bar button { font: inherit; color: var(--ink); background: var(--surface); border: 1px solid var(--line); border-radius: 8px; padding: 6px 12px; cursor: pointer; }
.deck-bar .progress { height: 3px; background: var(--line); flex: 1; border-radius: 3px; overflow: hidden; } .deck-bar .progress i { display: block; height: 100%; background: var(--ember); width: 0; }

/* ---- print */
@media print {
  .nav, .foot, .paper-side, .skip, .theme-btn, button.copy { display: none !important; }
  body { background: #fff; color: #000; font-size: 11pt; } .paper { grid-template-columns: 1fr; padding: 0; } .prose { max-width: none; }
  a { color: #000; text-decoration: none; } .prose h2 { break-after: avoid; } pre, table, .codeblock { break-inside: avoid; }
}

/* languages, machine-translation notice, recipes and scenarios */
.lang-menu .more-list { grid-template-columns: repeat(2, minmax(120px, 1fr)); max-height: 70vh; overflow: auto; inset-inline-end: 0; inset-inline-start: auto; }
.lang-menu a[aria-current] { font-weight: 600; color: var(--ink); }
.mt-notice { margin: 0; padding: 8px 16px; font-size: 13px; color: var(--ink-2); background: var(--band); border-bottom: 1px solid var(--line); text-align: center; }
.rcard { display: grid; gap: 4px; } .rcard .meta { font-size: 13px; color: var(--ink-2); } .rcard .lvl { font-family: var(--mono, monospace); font-size: 12px; }
.recipe-head .meta { color: var(--ink-2); } .recipe-head .lic { font-size: 14px; }
.ingredients li { display: flex; gap: 12px; justify-content: space-between; border-bottom: 1px solid var(--line); padding: 6px 0; min-width: 0; } .ingredients li > span { min-width: 0; overflow-wrap: anywhere; } .ingredients .qty { color: var(--ink-2); text-align: end; flex: 0 1 45%; }
.recipe-head .meta, .recipe-head .lead { overflow-wrap: anywhere; } .pager-inline a { margin-inline-end: 16px; }
.tabs { display: flex; flex-wrap: wrap; gap: 6px; margin: 12px 0; } .tabs button { font: inherit; font-size: 14px; padding: 6px 10px; border: 1px solid var(--line); border-radius: 8px; background: var(--surface); color: var(--ink); cursor: pointer; } .tabs button[aria-selected="true"] { background: var(--ink); color: var(--paper); border-color: var(--ink); }
.sample pre { max-height: 70vh; overflow: auto; }
.scen-list li { margin-bottom: 10px; } .scen-list .meta { font-size: 13px; color: var(--ink-2); }
.sdk-card .st { font-size: 12px; font-family: var(--mono, monospace); color: var(--ink-2); }
/* goals page diagrams */
.legend .kind { margin-inline-end: 8px; }
.diagram { margin: 20px 0; } .diagram svg { width: 100%; height: auto; font: 15px/1.2 var(--sans, system-ui, sans-serif); color: var(--ink); }
.dg-boxes rect { fill: var(--surface); stroke: var(--line); stroke-width: 1.5; } .dg-boxes text { fill: var(--ink); } .dg-boxes .dg-h { font-weight: 600; font-size: 17px; }
.dg-steps { color: var(--ink); text-align: center; line-height: 1.4; overflow-wrap: anywhere; } .dg-boxes rect.dg-check { stroke: var(--ember, #c84a2a); stroke-width: 2; } .dg-warn { fill: var(--ember, #c84a2a) !important; font-weight: 600; }
.dg-arrows line, .dg-dashed { stroke: var(--ink-2); stroke-width: 2; } .dg-dashed { stroke-dasharray: 6 6; } .dg-labels text, text.dg-labels { fill: var(--ink-2); font-size: 14px; }
.four { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 16px; } .four h3 { margin-bottom: 6px; } @media (max-width: 900px) { .four { grid-template-columns: repeat(2, minmax(0, 1fr)); } } @media (max-width: 520px) { .four { grid-template-columns: 1fr; } }
[dir="rtl"] .diagram svg text { direction: rtl; unicode-bidi: plaintext; }
.deck .diagram { margin: 6px 0 10px; } .deck .diagram svg { max-height: 28vh; width: auto; max-width: 100%; display: block; margin: 0 auto; } .deck .slide { overflow-y: auto; } .deck .slide:has(.diagram) .big { font-size: 1.15em; line-height: 1.35; } .deck .slide:has(.diagram) ul { font-size: 15px; }

/* first-mention glosses (tools/build_site.py gloss): dotted term, tooltip on hover and keyboard focus, text for screen readers */
dfn.gloss { font-style: inherit; text-decoration: underline dotted var(--ink-2); text-underline-offset: 3px; cursor: help; position: relative; }
dfn.gloss:focus-visible { outline: 2px solid var(--ember); outline-offset: 2px; }
dfn.gloss:hover::after, dfn.gloss:focus-visible::after { content: attr(data-gloss); position: absolute; inset-inline-start: 0; top: 1.6em; z-index: 5; width: min(34ch, 80vw); background: var(--surface); color: var(--ink); border: 1px solid var(--line); border-radius: 8px; padding: 8px 10px; font-size: 14px; line-height: 1.45; font-weight: 400; box-shadow: 0 6px 24px rgba(0,0,0,.12); white-space: normal; }
.sr-only { position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px; overflow: hidden; clip: rect(0,0,0,0); white-space: nowrap; border: 0; }

.hero-cards { margin-top: 22px; grid-template-columns: repeat(auto-fit, minmax(220px, 1fr)); } .hero-cards .card h3 { margin: 0; font-size: 17px; }
.wrap.narrow { max-width: 760px; }

/* Samples: distribution tiles (site/assets/dist-icons.svg) */
.dist-group { margin: 28px 0 0; padding: 0; } .dist-group h3 { margin: 0 0 12px; }
.dist-grid { list-style: none; margin: 0; padding: 0; display: grid; gap: 12px; grid-template-columns: repeat(auto-fill, minmax(230px, 1fr)); }
.dist { display: grid; gap: 6px; align-content: start; background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius); padding: 16px; min-width: 0; }
.dist h4 { margin: 0; font-size: 16px; }
.dist-icons { display: flex; gap: 8px; color: var(--ink); }
.dist-ico { width: 28px; height: 28px; fill: currentColor; }
.dist-cmd { display: block; font: 12.5px/1.5 var(--mono); background: var(--band); border-radius: 6px; padding: 6px 8px; overflow-wrap: anywhere; direction: ltr; text-align: left; }
.dist-status { margin: 0; font: 500 11px/1.4 var(--mono); text-transform: uppercase; letter-spacing: .03em; color: var(--warn); }
.dist-status.repo, .dist-status.live, .dist-status.citested, .dist-status.oss-tested { color: var(--ok); } .dist-status.deploy { color: var(--ink-2); }
.dist-src { font-size: 14px; font-weight: 500; color: var(--ember); text-decoration: none; } .dist-src:hover { text-decoration: underline; }
.role-grid .card h3 { display: flex; gap: 8px; align-items: baseline; } .role-grid .card h3 span { font: 500 12px/1 var(--mono); color: var(--ink-2); }
.samples-highlight { padding-block: 8px 28px; }
.highlight { border: 1px solid var(--line); border-inline-start: 4px solid var(--ember); background: var(--ember-soft); border-radius: var(--radius); padding: 22px; display: grid; gap: 12px; }
.highlight h2, .highlight p { margin: 0; } .highlight .cta { margin: 0; }
.dist-strip { display: flex; flex-wrap: wrap; gap: 12px; color: var(--ink); }
.dist-strip .dist-ico { width: 24px; height: 24px; }
.steps li { min-width: 0; } .output { overflow-wrap: anywhere; }  /* long commands and outputs must not widen the page on phones */