/* Kodela — inner-page kit. The Board world (board/DESIGN.md) as reusable modules.
   Loaded on every page except the landing, which keeps board/style.css. */

@font-face { font-family: "Plex Cond"; src: url(/fonts/plex-cond-500.woff2) format("woff2"); font-weight: 500; font-display: swap; }
@font-face { font-family: "Plex Serif"; src: url(/fonts/plex-serif-400.woff2) format("woff2"); font-weight: 400; font-display: swap; }
@font-face { font-family: "DSEG7"; src: url(/fonts/dseg7-bold.woff2) format("woff2"); font-weight: 700; font-display: swap; }

:root {
  color-scheme: light;
  --ground: #f3f4f6; --ground-2: #e9ebef; --panel: #fff; --elevated: #f1f2f5; --bay: #e6e8ec;
  --line: #d9dce3; --line-strong: #c3c8d1;
  --ink: #14161a; --ink-dim: #4f5560; --ink-dimmer: #5d636e;
  --amber: #b86a00; --amber-text: #8f5200; --amber-led: #f08a00; --amber-soft: rgba(240,138,0,.16);
  --lcd: #1c1f24; --lcd-ink: #f0a340; --lcd-dim: #8b8f98; --lcd-line: #2d3139;
  --focus: #2458d6;
  --f-cond: "Plex Cond", "Arial Narrow", system-ui, sans-serif;
  --f-sans: "Plex Sans", "Plex Sans Fallback", system-ui, -apple-system, "Segoe UI", sans-serif;
  --f-mono: "Plex Mono", ui-monospace, SFMono-Regular, Menlo, monospace;
  --f-serif: "Plex Serif", Georgia, serif;
  --f-seg: "DSEG7", var(--f-mono);
  --shadow-mod: 0 1px 0 rgba(255,255,255,.9) inset, 0 2px 4px rgba(20,22,26,.06), 0 22px 44px -22px rgba(20,22,26,.28);
  --shadow-lift: 0 1px 0 rgba(255,255,255,.9) inset, 0 6px 14px rgba(20,22,26,.08), 0 34px 64px -26px rgba(20,22,26,.34);
  --well: inset 0 1px 3px rgba(20,22,26,.16), inset 0 0 0 1px rgba(20,22,26,.04);
  --ease: cubic-bezier(.16, 1, .3, 1);
  --gutter: clamp(16px, 4vw, 56px);
  --maxw: 1240px;
  --sec-y: clamp(64px, 9vw, 128px);
}

*, *::before, *::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; scrollbar-color: var(--line-strong) var(--ground); }
body.kd-body { margin: 0; background: var(--ground); color: var(--ink); font: 400 1rem/1.6 var(--f-sans); -webkit-font-smoothing: antialiased; overflow-x: hidden; }
::selection { background: var(--amber-soft); color: var(--ink); }
::-webkit-scrollbar { width: 12px; height: 12px; }
::-webkit-scrollbar-track { background: var(--ground); }
::-webkit-scrollbar-thumb { background: var(--line-strong); border: 3px solid var(--ground); border-radius: 8px; }
:where(.kd-body) img, :where(.kd-body) svg { display: block; max-width: 100%; }
:where(.kd-body) a { color: inherit; text-underline-offset: .22em; text-decoration-thickness: 1px; }  /* zero-weight, so every .kd-* control keeps its own colour */
.kd-body :focus-visible { outline: 2px solid var(--focus); outline-offset: 3px; border-radius: 6px; }
.kd-body h1, .kd-body h2, .kd-body h3 { margin: 0; text-wrap: balance; }
.kd-body p { margin: 0; text-wrap: pretty; }
/* :where() keeps this reset at zero specificity, so .kd-key and every other
   component class wins over it without !important. */
:where(.kd-body) button { font: inherit; color: inherit; }
.kd-body code { font: 500 .88em/1.4 var(--f-mono); background: var(--elevated); border: 1px solid var(--line); border-radius: 5px; padding: .05em .35em; }
.kd-skip { position: fixed; left: 12px; top: -60px; z-index: 100; background: var(--ink); color: #fff; padding: 10px 14px; border-radius: 8px; transition: top .2s; }
.kd-skip:focus { top: 12px; }

/* ---------- layout ---------- */
.kd-page { display: block; }
.kd-wrap { width: 100%; max-width: var(--maxw); margin: 0 auto; padding: 0 var(--gutter); }
.kd-sec { padding: var(--sec-y) 0; position: relative; }
.kd-sec--tight { padding: calc(var(--sec-y) * .6) 0; }
.kd-sec--rule { border-top: 1px solid var(--line); }
.kd-sec__head { max-width: 760px; margin: 0 0 clamp(28px, 4vw, 52px); display: flex; flex-direction: column; gap: 14px; }
.kd-sec__head--center { margin-left: auto; margin-right: auto; text-align: center; align-items: center; }

/* ---------- type ---------- */
.kd-h1 { font: 700 clamp(2.4rem, 5.6vw, 4.8rem)/.96 var(--f-cond); letter-spacing: -.015em; text-transform: uppercase; }
.kd-h2 { font: 700 clamp(1.9rem, 3.8vw, 3.2rem)/1 var(--f-cond); letter-spacing: -.012em; text-transform: uppercase; }
.kd-h3 { font: 700 clamp(1.25rem, 1.8vw, 1.55rem)/1.08 var(--f-cond); letter-spacing: -.005em; text-transform: uppercase; }
.kd-lede { font: 400 clamp(1.05rem, 1.35vw, 1.22rem)/1.55 var(--f-sans); color: var(--ink-dim); max-width: 46ch; }
.kd-text { font: 400 1rem/1.65 var(--f-sans); color: var(--ink-dim); max-width: 64ch; }
.kd-mono { font: 500 .8rem/1.35 var(--f-mono); letter-spacing: .04em; }
.kd-amber { color: var(--amber-text); }

/* ---------- controls ---------- */
.kd-actions { display: flex; flex-wrap: wrap; align-items: center; gap: 12px 18px; }
.kd-key { --kd-key-bg: var(--ink); display: inline-flex; align-items: center; justify-content: center; gap: 10px; min-height: 50px; padding: 0 22px; border-radius: 10px; background: var(--kd-key-bg); color: #fff; text-decoration: none; border: 1px solid #000; font: 600 .95rem/1 var(--f-sans); cursor: pointer; box-shadow: 0 1px 0 rgba(255,255,255,.14) inset, 0 3px 0 #000, 0 10px 22px -10px rgba(20,22,26,.65); transition: transform .12s var(--ease), box-shadow .12s var(--ease), background .2s; }
.kd-key:hover { background: #262a31; }
.kd-key:active { transform: translateY(3px); box-shadow: 0 1px 0 rgba(255,255,255,.1) inset, 0 0 0 #000, 0 2px 6px -4px rgba(20,22,26,.6); }
.kd-key__led { width: 8px; height: 8px; border-radius: 50%; background: var(--amber-led); box-shadow: 0 1px 2px rgba(0,0,0,.6); }
.kd-key--ghost { --kd-key-bg: var(--panel); color: var(--ink); border-color: var(--line-strong); box-shadow: 0 1px 0 #fff inset, 0 3px 0 var(--line-strong); }
.kd-key--ghost:hover { background: var(--elevated); }
.kd-link { display: inline-flex; align-items: center; gap: 8px; min-height: 44px; font: 600 .95rem/1 var(--f-sans); color: var(--ink); text-decoration: none; }
.kd-link .kd-g { width: 18px; height: 18px; transition: transform .3s var(--ease); }
.kd-link:hover { color: var(--amber-text); }
.kd-link:hover .kd-g { transform: translateX(4px); }
.kd-tag { display: inline-flex; align-items: center; gap: 6px; font: 500 .7rem/1 var(--f-mono); letter-spacing: .08em; text-transform: uppercase; color: var(--amber-text); border: 1px solid rgba(184,106,0,.45); border-radius: 5px; padding: 4px 6px; background: #fff; white-space: nowrap; }
.kd-tag--lcd { color: var(--lcd-ink); background: transparent; border-color: rgba(240,163,64,.35); }
.kd-chip { display: inline-flex; align-items: center; gap: 7px; min-height: 36px; padding: 0 12px; border-radius: 99px; border: 1px solid var(--line-strong); background: var(--panel); font: 500 .84rem/1 var(--f-sans); color: var(--ink-dim); cursor: pointer; transition: border-color .2s, color .2s, background .2s, transform .15s var(--ease); }
.kd-chip:hover { color: var(--ink); border-color: var(--ink-dimmer); }
.kd-chip:active { transform: translateY(1px); }
.kd-chip[aria-pressed="true"], .kd-chip.is-on { background: var(--ink); color: #fff; border-color: var(--ink); }
.kd-chip[aria-pressed="true"]::before, .kd-chip.is-on::before { content: ""; width: 6px; height: 6px; border-radius: 50%; background: var(--amber-led); }
.kd-chips { display: flex; flex-wrap: wrap; gap: 8px; }

/* ---------- the machined module ---------- */
.kd-module { position: relative; background: var(--panel); border: 1px solid var(--line); border-radius: 18px; box-shadow: var(--shadow-mod); padding: clamp(14px, 1.6vw, 20px); }
.kd-module--lift { box-shadow: var(--shadow-lift); }
.kd-screws > .kd-module__bar { padding-inline: 18px; }
.kd-module__bar { display: flex; align-items: center; gap: 10px; margin: -2px 0 14px; font: 600 .76rem/1 var(--f-cond); letter-spacing: .12em; text-transform: uppercase; color: var(--ink-dimmer); }
/* at the narrowest phones a long tag in a module bar shortens instead of widening the page */
@media (max-width: 340px) { .kd-module__bar .kd-tag { min-width: 0; overflow: hidden; text-overflow: ellipsis; } }
.kd-module__bar .kd-tag { margin-left: auto; }
.kd-led { width: 8px; height: 8px; border-radius: 50%; background: var(--line-strong); box-shadow: inset 0 1px 1px rgba(0,0,0,.2); transition: background .3s, box-shadow .3s; flex: none; }
.kd-led.is-on, .is-live > .kd-module__bar .kd-led { background: var(--amber-led); box-shadow: 0 1px 2px rgba(0,0,0,.35); }
.kd-screws::before, .kd-screws::after { content: ""; position: absolute; top: 10px; width: 9px; height: 9px; border-radius: 50%; background: var(--elevated); border: 1px solid var(--line-strong); box-shadow: inset 0 1px 1px rgba(20,22,26,.12); }
.kd-screws::before { left: 10px; } .kd-screws::after { right: 10px; }
.kd-well { background: var(--bay); border-radius: 12px; box-shadow: var(--well); padding: 12px; }
.kd-well--panel { background: var(--panel); }
.kd-lcd { background: var(--lcd); color: var(--lcd-ink); border-radius: 12px; padding: 14px 16px; box-shadow: inset 0 2px 8px rgba(0,0,0,.55); font: 500 .82rem/1.55 var(--f-mono); position: relative; overflow: hidden; }
.kd-lcd .kd-dim { color: var(--lcd-dim); }
.kd-lcd .kd-ok { color: #cfd3da; }
.kd-lcd .kd-strike { text-decoration: line-through; text-decoration-thickness: 1.5px; color: #cfd3da; }
.kd-seg { font: 700 1.6rem/1 var(--f-seg); color: var(--lcd-ink); position: relative; font-variant-numeric: tabular-nums; }
.kd-seg::before { content: attr(data-ghost); position: absolute; inset: 0; color: rgba(240,163,64,.1); }

/* ---------- hero (page header) ---------- */
.kd-hero { padding: clamp(40px, 6vw, 92px) 0 clamp(48px, 7vw, 104px); position: relative; overflow: hidden; }
.kd-hero::before { content: ""; position: absolute; inset: 0; background: url(/assets/art/board-lines.svg) center / cover no-repeat; opacity: .32; pointer-events: none; }
.kd-hero > .kd-wrap { position: relative; display: grid; grid-template-columns: minmax(0, .92fr) minmax(0, 1.08fr); gap: clamp(28px, 4.5vw, 72px); align-items: center; }
.kd-hero__copy { display: flex; flex-direction: column; gap: 22px; }
.kd-hero__demo { min-width: 0; }
.kd-hero--stub > .kd-wrap { grid-template-columns: 1fr 1fr; }
.kd-hero--center > .kd-wrap { grid-template-columns: 1fr; text-align: center; justify-items: center; }
.kd-hero--center .kd-hero__copy { align-items: center; }

/* ---------- split feature ---------- */
.kd-split { display: grid; grid-template-columns: minmax(0, 1.12fr) minmax(0, .88fr); gap: clamp(28px, 5vw, 80px); align-items: center; }
.kd-split + .kd-split { margin-top: clamp(72px, 10vw, 140px); }
.kd-split--flip .kd-split__demo { order: 2; }
.kd-split__demo { min-width: 0; }
.kd-split__copy { display: flex; flex-direction: column; gap: 18px; }
.kd-points { list-style: none; margin: 4px 0 0; padding: 0; display: flex; flex-direction: column; gap: 12px; }
.kd-points li { display: grid; grid-template-columns: 22px 1fr; gap: 10px; font: 400 1rem/1.5 var(--f-sans); color: var(--ink-dim); }
.kd-points li::before { content: ""; width: 9px; height: 9px; margin: 7px 0 0 4px; transform: rotate(45deg); border: 1.5px solid var(--amber); border-radius: 1px; }
.kd-points b { color: var(--ink); font-weight: 600; }
.kd-explore { align-self: flex-start; }

/* ---------- flow (device path along a trace) ---------- */
.kd-flow { position: relative; display: grid; grid-auto-flow: column; grid-auto-columns: minmax(0, 1fr); gap: 10px; align-items: start; padding: 8px 0; }
.kd-flow__trace { position: absolute; left: 8%; right: 8%; top: 58px; height: 2px; background: var(--line-strong); border-radius: 2px; }
.kd-flow__trace i { position: absolute; top: -4px; left: 0; width: 10px; height: 10px; border-radius: 50%; background: var(--amber-led); box-shadow: 0 1px 3px rgba(0,0,0,.4); opacity: 0; }
.kd-flow__fill { position: absolute; left: 0; top: 0; bottom: 0; width: 0; background: var(--amber); border-radius: 2px; }
.kd-flow__node { position: relative; display: flex; flex-direction: column; align-items: center; gap: 8px; text-align: center; background: none; border: 0; padding: 0; cursor: pointer; }
.kd-flow__node img { width: 116px; height: 97px; object-fit: contain; filter: drop-shadow(0 10px 12px rgba(20,22,26,.12)); transition: transform .4s var(--ease), filter .4s; }
.kd-flow__node b { font: 700 .95rem/1.05 var(--f-cond); letter-spacing: .04em; text-transform: uppercase; }
.kd-flow__node small { font: 400 .8rem/1.3 var(--f-sans); color: var(--ink-dim); max-width: 18ch; }
.kd-flow__node:hover img, .kd-flow__node.is-lit img { transform: translateY(-4px); }
.kd-flow__node.is-lit b { color: var(--amber-text); }
.kd-flow__node.is-stop b { text-decoration: none; }
.kd-flow__stamp { position: absolute; top: 2px; left: 50%; transform: translateX(-50%) rotate(-6deg) scale(.6); opacity: 0; font: 700 .72rem/1 var(--f-mono); letter-spacing: .12em; color: var(--lcd-ink); background: var(--lcd); padding: 5px 7px; border-radius: 5px; box-shadow: 0 4px 10px -4px rgba(0,0,0,.6); transition: opacity .25s, transform .35s var(--ease); pointer-events: none; }
.kd-flow__node.is-stop .kd-flow__stamp { opacity: 1; transform: translateX(-50%) rotate(-6deg) scale(1); }

/* ---------- without / with switch ---------- */
.kd-compare { display: grid; grid-template-columns: 1fr; gap: 18px; }
.kd-compare__switch { justify-self: center; display: inline-flex; align-items: center; gap: 14px; min-height: 52px; padding: 6px 8px 6px 18px; border-radius: 99px; background: var(--panel); border: 1px solid var(--line); box-shadow: var(--shadow-mod); cursor: pointer; font: 600 .92rem/1 var(--f-sans); }
.kd-compare__switch .kd-compare__lbl { color: var(--ink-dimmer); transition: color .2s; }
.kd-compare__switch .kd-compare__lbl.is-on { color: var(--ink); }
.kd-toggle { position: relative; width: 62px; height: 34px; border-radius: 99px; background: var(--bay); box-shadow: var(--well); flex: none; transition: background .3s; }
.kd-toggle::after { content: ""; position: absolute; top: 3px; left: 3px; width: 28px; height: 28px; border-radius: 50%; background: #fff; box-shadow: 0 2px 4px rgba(20,22,26,.25), 0 1px 0 #fff inset; transition: transform .35s var(--ease); }
[aria-pressed="true"] > .kd-toggle, .kd-toggle.is-on { background: var(--amber); }
[aria-pressed="true"] > .kd-toggle::after, .kd-toggle.is-on::after { transform: translateX(28px); }
.kd-compare__stage { position: relative; display: grid; }
/* both lanes share one grid cell, so the stage is as tall as the taller lane at every width */
.kd-compare__lane { grid-area: 1 / 1; display: grid; grid-auto-flow: column; grid-auto-columns: minmax(0, 1fr); gap: 8px; align-items: stretch; transition: opacity .45s var(--ease), transform .45s var(--ease), filter .45s; }
.kd-compare__lane[data-state="off"] { opacity: 0; transform: translateY(10px); filter: blur(2px); pointer-events: none; }
.kd-step { position: relative; display: flex; flex-direction: column; gap: 6px; padding: 14px 12px; border-radius: 12px; background: var(--panel); border: 1px solid var(--line); min-height: 104px; }
.kd-step::after { content: ""; position: absolute; top: 50%; right: -9px; width: 10px; height: 2px; background: var(--line-strong); }
.kd-step:last-child::after { display: none; }
.kd-step b { font: 700 .92rem/1.1 var(--f-cond); text-transform: uppercase; letter-spacing: .03em; }
.kd-step small { font: 400 .82rem/1.35 var(--f-sans); color: var(--ink-dim); }
.kd-step--risk { background: var(--ground-2); border-style: dashed; }
.kd-step--risk b { color: var(--ink-dim); }
.kd-step--ctl { border-color: rgba(184,106,0,.45); }
.kd-step--ctl::before { content: ""; position: absolute; top: 10px; right: 10px; width: 7px; height: 7px; border-radius: 50%; background: var(--amber-led); }

/* ---------- three things ---------- */
.kd-three { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 16px; }
.kd-three__mod { display: flex; flex-direction: column; gap: 14px; }
.kd-three__mod .kd-lcd { min-height: 86px; display: flex; flex-direction: column; justify-content: center; }
.kd-three__mod > p { color: var(--ink-dim); font-size: .96rem; line-height: 1.55; }

/* ---------- stats strip ---------- */
.kd-stats { display: grid; grid-template-columns: repeat(auto-fit, minmax(min(170px, 100%), 1fr)); gap: 12px; }
.kd-stat { display: flex; flex-direction: column; gap: 10px; }
.kd-stat .kd-lcd { display: flex; align-items: flex-end; justify-content: space-between; min-height: 72px; }
.kd-stat__unit { font: 500 .72rem/1 var(--f-mono); color: var(--lcd-dim); letter-spacing: .06em; }
.kd-stat__label { font: 600 .78rem/1.2 var(--f-cond); letter-spacing: .1em; text-transform: uppercase; color: var(--ink); }
.kd-stat__limit { font: 400 .8rem/1.35 var(--f-sans); color: var(--ink-dimmer); }

/* ---------- limits ---------- */
.kd-limits { list-style: none; margin: 0; padding: 0; display: grid; grid-template-columns: repeat(auto-fit, minmax(min(300px, 100%), 1fr)); gap: 10px 28px; }
.kd-limits li { display: grid; grid-template-columns: 20px 1fr; gap: 10px; padding: 12px 0; border-top: 1px dashed var(--line-strong); font: 400 .94rem/1.5 var(--f-sans); color: var(--ink-dim); }
.kd-limits li::before { content: ""; width: 8px; height: 8px; margin: 7px 0 0 3px; transform: rotate(45deg); background: var(--amber); border-radius: 1px; }
.kd-limits b { color: var(--ink); font-weight: 600; }
.kd-sheet-paper { background: #fbfbfa; border: 1px solid var(--line); border-radius: 14px; padding: clamp(18px, 3vw, 34px); box-shadow: var(--shadow-mod); }

/* ---------- CTA band ---------- */
.kd-cta { position: relative; overflow: hidden; display: grid; grid-template-columns: 1fr auto; gap: 24px; align-items: center; padding: clamp(28px, 4vw, 52px); border-radius: 22px; background: var(--panel); border: 1px solid var(--line); box-shadow: var(--shadow-lift); }
.kd-cta::before { content: ""; position: absolute; inset: 0; background: url(/assets/art/board-lines.svg) right center / 820px auto no-repeat; opacity: .35; pointer-events: none; }
.kd-cta > * { position: relative; }
.kd-cta__copy { display: flex; flex-direction: column; gap: 12px; }
.kd-cta .kd-actions { justify-content: flex-end; }

/* ---------- docs layout ---------- */
.kd-docs { display: grid; grid-template-columns: 230px minmax(0, 1fr) 200px; gap: clamp(24px, 3.5vw, 56px); align-items: start; padding: clamp(28px, 4vw, 56px) 0 var(--sec-y); }
.kd-docs__nav, .kd-docs__toc { position: sticky; top: 88px; max-height: calc(100vh - 110px); overflow-y: auto; overscroll-behavior: contain; scrollbar-width: thin; scrollbar-color: var(--line-strong) transparent; }
.kd-docs__nav p { margin: 18px 0 8px; font: 600 .72rem/1 var(--f-cond); letter-spacing: .12em; text-transform: uppercase; color: var(--ink-dimmer); }
.kd-docs__nav p:first-child { margin-top: 0; }
.kd-docs__nav a, .kd-docs__toc a { display: block; padding: 7px 10px; border-radius: 8px; font: 400 .9rem/1.35 var(--f-sans); color: var(--ink-dim); text-decoration: none; }
.kd-docs__nav a:hover, .kd-docs__toc a:hover { color: var(--ink); background: var(--elevated); }
.kd-docs__nav a[aria-current="page"] { color: var(--ink); font-weight: 600; background: var(--panel); box-shadow: var(--shadow-mod); }
.kd-docs__toc a.is-active { color: var(--amber-text); font-weight: 600; }
.kd-docs__toc p { font: 600 .72rem/1 var(--f-cond); letter-spacing: .12em; text-transform: uppercase; color: var(--ink-dimmer); margin: 0 0 8px 10px; }
.kd-docs__body { min-width: 0; display: flex; flex-direction: column; gap: 22px; }
.kd-docs__body h2 { font: 700 clamp(1.5rem, 2.4vw, 2rem)/1.05 var(--f-cond); text-transform: uppercase; margin-top: 26px; scroll-margin-top: 90px; }
.kd-docs__body h3 { font: 700 1.3rem/1.25 var(--f-cond); text-transform: uppercase; letter-spacing: .01em; scroll-margin-top: 90px; }
.kd-docs__body p, .kd-docs__body li { color: var(--ink-dim); max-width: 70ch; }
.kd-docs__body ul, .kd-docs__body ol { margin: 0; padding-left: 1.2em; display: flex; flex-direction: column; gap: 6px; }

/* ---------- code block ---------- */
.kd-code { position: relative; background: var(--lcd); border-radius: 14px; box-shadow: inset 0 2px 8px rgba(0,0,0,.5), 0 1px 0 #fff; overflow: hidden; }
.kd-code__bar { display: flex; align-items: center; gap: 8px; padding: 10px 12px 10px 16px; border-bottom: 1px solid var(--lcd-line); font: 500 .74rem/1 var(--f-mono); letter-spacing: .08em; color: var(--lcd-dim); text-transform: uppercase; }
.kd-code__bar .kd-copy { margin-left: auto; }
.kd-code pre { margin: 0; padding: 16px 18px 18px; overflow-x: auto; font: 500 .86rem/1.65 var(--f-mono); color: #e3e5ea; }
.kd-code pre code { background: none; border: 0; padding: 0; color: inherit; font: inherit; }
.kd-code .c { color: var(--lcd-dim); } .kd-code .p { color: var(--lcd-ink); }
.kd-copy { display: inline-flex; align-items: center; gap: 6px; min-height: 36px; padding: 0 10px; border-radius: 8px; background: #2a2e36; color: #e3e5ea; border: 1px solid #3a3f49; cursor: pointer; font: 500 .74rem/1 var(--f-mono); letter-spacing: .06em; text-transform: uppercase; position: relative; }
.kd-copy::after { content: ""; position: absolute; inset: -4px; }
.kd-copy .kd-g { width: 15px; height: 15px; }
.kd-copy:hover { background: #343944; }
.kd-copy.is-done { color: var(--lcd-ink); border-color: rgba(240,163,64,.5); }

/* ---------- placeholder ---------- */
.kd-placeholder { position: relative; display: flex; flex-direction: column; gap: 14px; padding: 26px; border-radius: 18px; background: var(--panel); border: 1px dashed var(--line-strong); box-shadow: var(--shadow-mod); }
.kd-placeholder__led { width: 10px; height: 10px; border-radius: 50%; background: var(--amber-led); animation: kd-blink2 1.8s steps(1) infinite; }
@keyframes kd-blink2 { 0%, 60% { opacity: 1; } 61%, 100% { opacity: .25; } }
.kd-placeholder__lcd { align-self: flex-start; background: var(--lcd); color: var(--lcd-ink); padding: 10px 14px; border-radius: 8px; font: 500 1rem/1 var(--f-mono); letter-spacing: .12em; text-transform: uppercase; box-shadow: inset 0 2px 6px rgba(0,0,0,.5); }
.kd-placeholder p:not(.kd-placeholder__lcd) { color: var(--ink-dim); }

/* ---------- reveal grammar: module power-on ---------- */
.kd-kit [data-kd-reveal]:not(.is-in) { opacity: 0; transform: translateY(18px); }
.kd-kit [data-kd-reveal].is-in { opacity: 1; transform: none; transition: opacity .7s var(--ease), transform .8s var(--ease); }
.js [data-kd-reveal] .kd-module__bar .kd-led { background: var(--line-strong); }
.js [data-kd-reveal].is-in .kd-module__bar .kd-led { background: var(--amber-led); box-shadow: 0 1px 2px rgba(0,0,0,.35); transition: background .2s .35s; }

/* ---------- responsive ---------- */
@media (max-width: 1100px) {
  .kd-docs { grid-template-columns: 210px minmax(0, 1fr); }
  .kd-docs__toc { display: none; }
}
@media (max-width: 960px) {
  .kd-hero > .kd-wrap, .kd-hero--stub > .kd-wrap { grid-template-columns: 1fr; }
  .kd-split, .kd-split--flip { grid-template-columns: 1fr; }
  .kd-split--flip .kd-split__demo { order: 0; }
  .kd-three { grid-template-columns: 1fr; }
  .kd-cta { grid-template-columns: 1fr; }
  .kd-cta .kd-actions { justify-content: flex-start; }
}
@media (max-width: 760px) {
  .kd-docs { grid-template-columns: minmax(0, 1fr); }
  .kd-docs > * { min-width: 0; }
  .kd-docs__nav { position: static; max-height: none; display: flex; gap: 6px; overflow-x: auto; padding-bottom: 6px; }
  .kd-docs__nav p { display: none; }
  .kd-docs__nav a { white-space: nowrap; border: 1px solid var(--line); background: var(--panel); }
  .kd-flow { grid-auto-flow: row; grid-auto-columns: auto; grid-template-columns: 1fr; gap: 18px; }
  .kd-flow__trace { left: 50%; right: auto; top: 30px; bottom: 30px; width: 2px; height: auto; }
  .kd-flow__node { display: grid; grid-template-columns: 92px 1fr; text-align: left; align-items: center; gap: 4px 14px; background: var(--ground); position: relative; z-index: 1; padding: 6px 0; }
  .kd-flow__node img { width: 92px; height: 77px; grid-row: span 2; }
  .kd-flow__node small { max-width: none; }
  .kd-flow__stamp { left: 46px; }
  .kd-compare__lane { grid-auto-flow: row; grid-auto-columns: auto; }
  .kd-step::after { top: auto; bottom: -9px; right: auto; left: 22px; width: 2px; height: 10px; }
}
@media (prefers-reduced-motion: reduce) {
  .js [data-kd-reveal] { opacity: 1; transform: none; }
  .kd-placeholder__led { animation: none; }
  *, *::before, *::after { transition-duration: .01ms !important; animation-duration: .01ms !important; }
}

/* ======================================================================
   Live GUI demos (driven by kit.js; data in each demo's .kd-scn JSON)
   ====================================================================== */

/* pipeline: a request crossing stations */
.kd-pipe__track { position: relative; display: grid; grid-template-columns: repeat(var(--kd-st, 6), minmax(0, 1fr)); gap: 4px; padding: 26px 4px 8px; border-radius: 14px; background: var(--ground) url(/assets/art/board-lines.svg) center / cover no-repeat; box-shadow: var(--well); }
.kd-pipe__track::before { content: ""; position: absolute; left: 7%; right: 7%; top: calc(26px + 30px); height: 2px; background: var(--line-strong); }
.kd-pipe__st { position: relative; margin: 0; display: flex; flex-direction: column; align-items: center; gap: 6px; text-align: center; min-width: 0; }
.kd-pipe__st img { width: 100%; max-width: 92px; aspect-ratio: 6 / 5; object-fit: contain; filter: drop-shadow(0 8px 10px rgba(20,22,26,.12)) grayscale(.2); opacity: .8; transition: opacity .3s, filter .3s, transform .45s var(--ease); }
.kd-pipe__st figcaption { font: 700 .74rem/1.05 var(--f-cond); letter-spacing: .06em; text-transform: uppercase; color: var(--ink-dim); }
.kd-pipe__st.is-lit img { opacity: 1; filter: drop-shadow(0 12px 14px rgba(20,22,26,.16)); transform: translateY(-3px); }
.kd-pipe__st.is-lit figcaption { color: var(--ink); }
.kd-pipe__stamp { position: absolute; top: -18px; left: 50%; transform: translateX(-50%) rotate(-4deg) scale(.7); opacity: 0; white-space: nowrap; font: 700 .64rem/1 var(--f-mono); letter-spacing: .1em; padding: 5px 6px; border-radius: 5px; background: var(--lcd); color: var(--lcd-ink); box-shadow: 0 6px 12px -6px rgba(0,0,0,.7); transition: opacity .2s, transform .35s var(--ease); z-index: 2; }
.kd-pipe__st.is-ok .kd-pipe__stamp, .kd-pipe__st.is-ask .kd-pipe__stamp, .kd-pipe__st.is-stop .kd-pipe__stamp { opacity: 1; transform: translateX(-50%) rotate(-4deg) scale(1); }
.kd-pipe__st.is-ok .kd-pipe__stamp { background: #fff; color: var(--ink); border: 1px solid var(--line-strong); }
.kd-pipe__st.is-stop .kd-pipe__stamp { background: var(--ink); color: #fff; }
.kd-pipe__packet { position: absolute; left: -6px; top: -6px; width: 12px; height: 12px; border-radius: 50%; background: var(--amber-led); box-shadow: 0 0 0 3px #fff, 0 2px 6px rgba(0,0,0,.35); opacity: 0; transition: transform .5s var(--ease), opacity .2s; z-index: 3; pointer-events: none; }
.kd-pipe__packet.is-on { opacity: 1; }
.kd-pipe__packet.is-stop { background: var(--ink); }
.kd-pipe__chips { margin: 14px 0 10px; }
.kd-pipe__log { min-height: 128px; display: flex; flex-direction: column; gap: 2px; }
.kd-pipe__log p { margin: 0; }
.kd-pipe__verdict { margin-top: 6px !important; padding-top: 6px; border-top: 1px dashed var(--lcd-line); color: var(--lcd-ink); }

/* chat turn */
.kd-chat { display: flex; flex-direction: column; gap: 10px; }
.kd-chat__head { display: flex; align-items: center; gap: 8px; font: 500 .78rem/1 var(--f-mono); color: var(--ink-dimmer); }
.kd-chat__mode { margin-left: auto; display: inline-flex; gap: 2px; padding: 3px; border-radius: 8px; background: var(--bay); box-shadow: var(--well); }
.kd-chat__mode span { padding: 5px 8px; border-radius: 6px; font: 600 .7rem/1 var(--f-cond); letter-spacing: .08em; text-transform: uppercase; color: var(--ink-dimmer); }
.kd-chat__mode span.is-on { background: #fff; color: var(--ink); box-shadow: 0 1px 2px rgba(20,22,26,.15); }
.kd-chat__body { display: flex; flex-direction: column; gap: 8px; min-height: 300px; }
.kd-chat__you { align-self: flex-end; max-width: 82%; padding: 10px 13px; border-radius: 12px 12px 3px 12px; background: var(--ink); color: #fff; font-size: .92rem; line-height: 1.45; }
.kd-chat__agent { max-width: 88%; padding: 10px 13px; border-radius: 12px 12px 12px 3px; background: var(--elevated); border: 1px solid var(--line); font-size: .92rem; line-height: 1.45; color: var(--ink); }
.kd-chat__tool { display: grid; grid-template-columns: auto 1fr auto; gap: 10px; align-items: center; padding: 8px 10px; border-radius: 9px; border: 1px solid var(--line); background: #fff; font: 500 .78rem/1.2 var(--f-mono); }
.kd-chat__tool code { background: none; border: 0; padding: 0; color: var(--ink-dim); overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.kd-chat__tname { color: var(--ink); }
.kd-chat__state { font: 600 .66rem/1 var(--f-mono); letter-spacing: .08em; text-transform: uppercase; padding: 4px 6px; border-radius: 4px; background: var(--elevated); color: var(--ink-dim); }
.kd-chat__tool--auto .kd-chat__state { background: #fff; border: 1px solid var(--line-strong); }
.kd-chat__tool--ask .kd-chat__state { background: var(--ink); color: #fff; }
.kd-chat__card { border: 1px solid rgba(184,106,0,.5); border-radius: 12px; background: #fff; padding: 12px; display: flex; flex-direction: column; gap: 8px; box-shadow: 0 10px 22px -16px rgba(20,22,26,.5); }
.kd-chat__card-h { display: flex; align-items: center; gap: 8px; font: 700 .82rem/1 var(--f-cond); letter-spacing: .08em; text-transform: uppercase; }
.kd-chat__card code { font: 500 .82rem/1.4 var(--f-mono); background: var(--lcd); color: var(--lcd-ink); border: 0; padding: 8px 10px; border-radius: 7px; }
.kd-chat__card-why { font-size: .84rem; color: var(--ink-dim); }
.kd-chat__card-k { display: flex; gap: 8px; }
.kd-chat__allow, .kd-chat__refuse { display: inline-flex; align-items: center; min-height: 34px; padding: 0 12px; border-radius: 8px; font: 600 .82rem/1 var(--f-sans); }
.kd-chat__allow { background: var(--ink); color: #fff; }
.kd-chat__refuse { border: 1px solid var(--line-strong); color: var(--ink-dim); }
.kd-chat__replay { align-self: flex-start; }

/* profile knob */
.kd-prof { display: grid; grid-template-columns: 200px 1fr; gap: 18px; align-items: center; }
.kd-prof__dial { display: flex; flex-direction: column; align-items: center; gap: 12px; }
.kd-prof__knob { --kd-rot: 0deg; position: relative; width: 132px; height: 132px; border-radius: 50%; border: 0; cursor: pointer; background: var(--bay); box-shadow: var(--well); padding: 14px; }
.kd-prof__knob::before { content: ""; position: absolute; inset: 14px; border-radius: 50%; background: #fff; box-shadow: 0 6px 12px -4px rgba(20,22,26,.35), 0 1px 0 #fff inset; transition: transform .45s var(--ease); transform: rotate(var(--kd-rot)); background-image: repeating-conic-gradient(from 0deg, transparent 0 7deg, rgba(20,22,26,.06) 7deg 8deg); }
.kd-prof__knob::after { content: ""; position: absolute; left: 50%; top: 20px; width: 4px; height: 34px; margin-left: -2px; border-radius: 3px; background: var(--amber); transform-origin: 50% 46px; transform: rotate(var(--kd-rot)); transition: transform .45s var(--ease); }
.kd-prof__knob:active::before { transform: rotate(var(--kd-rot)) scale(.97); }
.kd-prof__opts { display: flex; gap: 6px; }
.kd-prof__opt { min-height: 36px; padding: 0 10px; border-radius: 8px; border: 1px solid var(--line); background: #fff; font: 600 .74rem/1 var(--f-cond); letter-spacing: .08em; text-transform: uppercase; color: var(--ink-dimmer); cursor: pointer; }
.kd-prof__opt.is-on { color: var(--ink); border-color: var(--amber); box-shadow: inset 0 -2px 0 var(--amber); }
.kd-prof__rows { list-style: none; margin: 0; padding: 0; display: flex; flex-direction: column; gap: 6px; }
.kd-prof__row { display: flex; justify-content: space-between; align-items: center; gap: 12px; padding: 10px 12px; border-radius: 10px; background: #fff; border: 1px solid var(--line); font-size: .92rem; transition: background .3s, border-color .3s; }
.kd-prof__row b { font: 600 .7rem/1 var(--f-mono); letter-spacing: .08em; text-transform: uppercase; padding: 5px 7px; border-radius: 5px; white-space: nowrap; }
.kd-prof__row.is-auto b { background: var(--lcd); color: var(--lcd-ink); }
.kd-prof__row.is-ask b { background: #fff; border: 1px solid var(--ink); color: var(--ink); }
.kd-prof__row.is-propose b { background: var(--elevated); color: var(--ink-dim); }
.kd-prof__row.is-off { background: var(--ground-2); border-style: dashed; color: var(--ink-dimmer); }
.kd-prof__row.is-off b { color: var(--ink-dimmer); text-decoration: line-through; }
.kd-prof__note { grid-column: 1 / -1; font-size: .86rem; color: var(--ink-dimmer); }

/* egress host list */
.kd-egress__top { display: flex; align-items: center; gap: 12px; margin-bottom: 12px; flex-wrap: wrap; }
.kd-egress__switch { display: inline-flex; align-items: center; gap: 10px; min-height: 44px; padding: 5px 6px 5px 12px; border-radius: 99px; border: 1px solid var(--line); background: #fff; cursor: pointer; font: 600 .82rem/1 var(--f-sans); }
.kd-egress__lcd { margin-left: auto; display: flex; align-items: baseline; gap: 10px; padding: 8px 12px; }
.kd-egress__mode { font: 600 .95rem/1 var(--f-mono); letter-spacing: .14em; }
.kd-egress__rows { list-style: none; margin: 0; padding: 0; display: flex; flex-direction: column; gap: 5px; }
.kd-egress__row { display: grid; grid-template-columns: minmax(0, 1.1fr) minmax(0, 1fr) auto; gap: 10px; align-items: center; padding: 9px 12px; border-radius: 10px; background: #fff; border: 1px solid var(--line); }
.kd-egress__host { background: none !important; border: 0 !important; padding: 0 !important; font: 500 .84rem/1.2 var(--f-mono) !important; color: var(--ink); overflow-wrap: anywhere; }
.kd-egress__why { font-size: .82rem; color: var(--ink-dimmer); }
.kd-egress__row b { font: 600 .66rem/1 var(--f-mono); letter-spacing: .08em; text-transform: uppercase; padding: 5px 7px; border-radius: 5px; white-space: nowrap; }
.kd-egress__row.is-ok b { background: #fff; border: 1px solid var(--line-strong); color: var(--ink); }
.kd-egress__row.is-log b { background: var(--elevated); color: var(--amber-text); border: 1px solid rgba(184,106,0,.4); }
.kd-egress__row.is-stop { background: var(--ground-2); }
.kd-egress__row.is-stop .kd-egress__host { text-decoration: line-through; text-decoration-thickness: 1.5px; color: var(--ink-dim); }
.kd-egress__row.is-stop b { background: var(--ink); color: #fff; }
.kd-egress__note { margin-top: 10px; font-size: .84rem; color: var(--ink-dimmer); }

/* audit chain */
.kd-audit__rows { list-style: none; margin: 0; padding: 0; display: flex; flex-direction: column; gap: 3px; min-height: 196px; }
.kd-audit__rec { position: relative; display: grid; grid-template-columns: 64px 76px 86px minmax(0, 1fr) 18px; gap: 8px; align-items: center; padding: 6px 8px; border-radius: 6px; font: 500 .76rem/1.3 var(--f-mono); color: #cfd3da; }
.kd-audit__rec:not(:first-child)::before { content: ""; position: absolute; left: 30px; top: -5px; height: 7px; width: 1px; background: var(--lcd-line); }
.kd-audit__h { color: var(--lcd-ink); }
.kd-audit__s, .kd-audit__a { color: var(--lcd-dim); }
.kd-audit__t { overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.kd-audit__rec.is-checking { background: rgba(255,255,255,.04); }
.kd-audit__rec.is-good .kd-audit__v::before { content: "✓"; color: var(--lcd-ink); }
.kd-audit__rec.is-bad { background: rgba(240,163,64,.12); }
.kd-audit__rec.is-bad .kd-audit__v::before { content: "✕"; color: #fff; }
.kd-audit__rec.is-tampered .kd-audit__t { color: #fff; }
.kd-audit__foot { display: flex; flex-wrap: wrap; align-items: center; gap: 8px; margin-top: 12px; }
.kd-audit__status { margin-left: auto; font: 600 .72rem/1 var(--f-mono); letter-spacing: .08em; color: var(--ink-dim); }

/* deploy path */
.kd-dep__controls { display: flex; flex-wrap: wrap; gap: 8px; align-items: center; margin-bottom: 14px; }
.kd-dep__sw { display: inline-flex; align-items: center; gap: 8px; min-height: 40px; padding: 4px 5px 4px 10px; border-radius: 99px; border: 1px solid var(--line); background: #fff; cursor: pointer; font: 600 .8rem/1 var(--f-sans); }
.kd-dep__sw .kd-toggle { width: 46px; height: 26px; }
.kd-dep__sw .kd-toggle::after { width: 20px; height: 20px; }
.kd-dep__sw[aria-pressed="true"] .kd-toggle::after { transform: translateX(20px); }
.kd-dep__who { min-height: 40px; padding: 0 10px; border-radius: 9px; border: 1px solid var(--line); background: #fff; font: 500 .82rem/1 var(--f-mono); color: var(--ink); }
.kd-dep__steps { list-style: none; margin: 0; padding: 0; display: grid; grid-template-columns: repeat(5, minmax(0, 1fr)); gap: 6px; }
.kd-dep__step { position: relative; display: flex; flex-direction: column; gap: 6px; padding: 12px 10px; border-radius: 11px; background: #fff; border: 1px solid var(--line); min-height: 104px; transition: border-color .3s, background .3s; }
.kd-dep__step b { font: 700 .82rem/1.05 var(--f-cond); letter-spacing: .05em; text-transform: uppercase; }
.kd-dep__res { font: 500 .72rem/1.35 var(--f-mono); color: var(--ink-dimmer); }
.kd-dep__step.is-running { border-color: var(--amber-led); }
.kd-dep__step.is-ok { border-color: rgba(184,106,0,.45); }
.kd-dep__step.is-ok b::after { content: " ●"; color: var(--amber-led); font-size: .7em; }
.kd-dep__step.is-skip { background: var(--ground-2); border-style: dashed; }
.kd-dep__step.is-stop { background: var(--ink); border-color: var(--ink); }
.kd-dep__step.is-stop b, .kd-dep__step.is-stop .kd-dep__res { color: #fff; }
.kd-dep__out { margin-top: 12px; min-height: 44px; }

/* workspace window */
.kd-ws { padding: 0; overflow: hidden; }
.kd-ws__bar { display: flex; align-items: center; gap: 8px; padding: 10px 12px; border-bottom: 1px solid var(--line); background: var(--elevated); font: 500 .76rem/1 var(--f-mono); color: var(--ink-dimmer); }
.kd-ws__tabs { display: flex; gap: 2px; padding: 8px 10px 0; border-bottom: 1px solid var(--line); overflow-x: auto; }
.kd-ws__tabs [role="tab"] { min-height: 40px; padding: 0 12px; border: 0; background: none; border-radius: 8px 8px 0 0; cursor: pointer; font: 600 .76rem/1 var(--f-cond); letter-spacing: .08em; text-transform: uppercase; color: var(--ink-dimmer); border-bottom: 2px solid transparent; white-space: nowrap; }
.kd-ws__tabs [role="tab"][aria-selected="true"] { color: var(--ink); border-bottom-color: var(--amber); background: #fff; }
.kd-ws__panel { padding: 14px; min-height: 250px; }
.kd-ws__term { background: var(--lcd); color: #e3e5ea; border-radius: 10px; padding: 14px; min-height: 222px; font: 500 .8rem/1.6 var(--f-mono); box-shadow: inset 0 2px 8px rgba(0,0,0,.5); }
.kd-ws__term p { margin: 0; white-space: pre-wrap; overflow-wrap: anywhere; }
.kd-ws__term .kd-dim { color: var(--lcd-dim); }
.kd-ws__ide { display: grid; grid-template-columns: 130px 1fr; gap: 10px; min-height: 222px; }
.kd-ws__files { display: flex; flex-direction: column; gap: 3px; font: 500 .76rem/1.5 var(--f-mono); color: var(--ink-dim); padding: 8px; border-radius: 9px; background: var(--elevated); }
.kd-ws__files .is-on { color: var(--ink); background: #fff; border-radius: 5px; padding: 0 5px; }
.kd-ws__code { background: #fbfbfa; border: 1px solid var(--line); border-radius: 9px; padding: 10px 12px; font: 500 .76rem/1.7 var(--f-mono); color: var(--ink-dim); overflow: hidden; }
.kd-ws__code .a { color: var(--amber-text); } .kd-ws__code .k { color: var(--ink); font-weight: 600; }
.kd-ws__list { list-style: none; margin: 0; padding: 0; display: flex; flex-direction: column; gap: 6px; }
.kd-ws__list li { display: flex; justify-content: space-between; gap: 10px; padding: 10px 12px; border-radius: 9px; border: 1px solid var(--line); background: #fff; font-size: .88rem; }
.kd-ws__list li span:last-child { font: 500 .72rem/1.3 var(--f-mono); color: var(--ink-dimmer); text-align: right; }

@media (max-width: 760px) {
  .kd-pipe__track { --kd-st: 3 !important; row-gap: 30px; padding-top: 30px; }
  .kd-pipe__track::before { display: none; }
  .kd-prof { grid-template-columns: 1fr; }
  .kd-egress__row { grid-template-columns: minmax(0, 1fr) auto; }
  .kd-egress__why { grid-column: 1; grid-row: 2; }
  .kd-egress__row b { grid-row: 1 / span 2; grid-column: 2; }
  .kd-audit__rec { grid-template-columns: 58px minmax(0, 1fr) 16px; }
  .kd-audit__s, .kd-audit__a { display: none; }
  .kd-dep__steps { grid-template-columns: 1fr; }
  .kd-dep__step { min-height: 0; flex-direction: row; justify-content: space-between; align-items: center; }
  .kd-ws__ide { grid-template-columns: 1fr; }
  .kd-ws__files { flex-direction: row; flex-wrap: wrap; gap: 6px 10px; }
}

.kd-sr { position: absolute !important; width: 1px; height: 1px; padding: 0; margin: -1px; overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; border: 0; }

/* narrow phones: the demo chrome must never widen the page */
.kd-prof > *, .kd-chat, .kd-chat__head { min-width: 0; }
.kd-chat__head { flex-wrap: wrap; row-gap: 8px; }
.kd-prof__opts { flex-wrap: wrap; justify-content: center; }
@media (max-width: 480px) {
  .kd-chat__mode { margin-left: 0; width: 100%; justify-content: space-between; }
  .kd-chat__mode span { padding: 5px 6px; }
  .kd-prof__opt { flex: 1 1 0; min-width: 0; padding: 0 6px; font-size: .68rem; }
  .kd-prof__row { padding: 9px 10px; font-size: .86rem; }
}
.kd-pipe__track { overflow: hidden; }
.kd-pipe__track .kd-pipe__stamp { max-width: calc(100% + 16px); overflow: hidden; text-overflow: ellipsis; }
.kd-prof__rows, .kd-prof__row span { min-width: 0; }
.kd-prof__row span { overflow-wrap: anywhere; }
@media (max-width: 400px) { .kd-prof__row b { font-size: .6rem; padding: 4px 5px; } }
.kd-prof__knob { overflow: hidden; }
@media (max-width: 400px) { .kd-prof__opts { gap: 4px; width: 100%; } .kd-prof__opt { letter-spacing: .02em; padding: 0 4px; overflow: hidden; } }

/* docs: compact "On this page" jump wherever the TOC column is hidden */
.kd-docs__jump { display: none; }
@media (max-width: 1100px) {
  .kd-docs__jump { display: block; border: 1px solid var(--line); border-radius: 12px; background: var(--panel); box-shadow: var(--shadow-mod); }
  .kd-docs__jump summary { list-style: none; display: flex; align-items: center; justify-content: space-between; min-height: 48px; padding: 0 14px; cursor: pointer; font: 600 .78rem/1 var(--f-cond); letter-spacing: .12em; text-transform: uppercase; color: var(--ink); }
  .kd-docs__jump summary::-webkit-details-marker { display: none; }
  .kd-docs__jump summary::after { content: "+"; font: 400 1.2rem/1 var(--f-mono); color: var(--ink-dimmer); }
  .kd-docs__jump[open] summary::after { content: "–"; }
  .kd-docs__jump nav { display: flex; flex-direction: column; padding: 0 8px 10px; }
  .kd-docs__jump a { min-height: 42px; display: flex; align-items: center; padding: 0 8px; border-radius: 8px; font: 400 .92rem/1.3 var(--f-sans); color: var(--ink-dim); text-decoration: none; }
  .kd-docs__jump a:hover { background: var(--elevated); color: var(--ink); }
}

/* ---------- spine: a board trace between the modules of a section ---------- */
[data-kd-spine] { position: relative; }
[data-kd-spine] > .kd-wrap { position: relative; z-index: 1; }
.kd-spine { position: absolute; left: 0; top: 0; z-index: 0; pointer-events: none; overflow: visible; }
.kd-spine__base { fill: none; stroke: var(--line-strong); stroke-width: 2; stroke-dasharray: 3 6; }
.kd-spine__lit { fill: none; stroke: var(--amber); stroke-width: 2; stroke-linejoin: round; }
.kd-spine__dot { fill: var(--amber-led); stroke: #fff; stroke-width: 3; filter: drop-shadow(0 1px 2px rgba(0,0,0,.35)); }
.kd-split__demo > .kd-module { position: relative; z-index: 1; }

/* ---------- reroute: the without/with board ---------- */
.kd-route { display: flex; flex-direction: column; align-items: center; gap: 18px; }
.kd-route__board { position: relative; width: 100%; border-radius: 22px; background: var(--panel) url(/assets/art/board-lines.svg) center / cover no-repeat; border: 1px solid var(--line); box-shadow: var(--shadow-lift); padding: clamp(10px, 2vw, 22px); }
.kd-route__svg { display: block; width: 100%; height: auto; overflow: visible; }
.kd-route__svg .kd-route__with, .kd-route__svg .kd-route__without { fill: none; stroke: var(--line-strong); stroke-width: 3; stroke-linejoin: round; stroke-dasharray: 5 7; transition: stroke .35s, opacity .35s; opacity: .7; }
.kd-route__svg .is-live { stroke: var(--amber); stroke-dasharray: none; opacity: 1; stroke-width: 3.5; }
.kd-route__packet { fill: var(--amber-led); stroke: #fff; stroke-width: 3; }
[data-mode="without"] .kd-route__packet { fill: var(--ink); }
.kd-route__node image { transition: opacity .35s, filter .35s; }
.kd-route__node text { font: 700 15px/1 var(--f-cond); letter-spacing: .06em; text-transform: uppercase; fill: var(--ink); }
.kd-route__node .kd-route__sub { font: 400 12.5px/1 var(--f-sans); letter-spacing: 0; text-transform: none; fill: var(--ink-dim); }
.kd-route__tag { opacity: 0; transition: opacity .3s; }
.kd-route__tag rect { fill: var(--ink); }
.kd-route__tag text { font: 600 11px/1 var(--f-mono); letter-spacing: .1em; fill: #fff; }
[data-mode="without"] .kd-route__node[data-on="with"] image { opacity: .28; filter: grayscale(1); }
[data-mode="without"] .kd-route__node[data-on="with"] text { fill: var(--ink-dimmer); }
[data-mode="without"] .kd-route__node[data-on="with"] .kd-route__tag { opacity: 1; }
[data-mode="with"] .kd-route__node[data-on="without"] { opacity: .3; }
.kd-route__readout { font: 500 .8rem/1 var(--f-mono); letter-spacing: .08em; padding: 10px 14px; }
@media (max-width: 760px) { .kd-route__board { overflow-x: auto; } .kd-route__svg { min-width: 680px; } }

/* ---------- spec plate: an engraved nameplate for static facts ---------- */
.kd-plate { position: relative; border-radius: 16px; background: linear-gradient(180deg, #fff, #f6f7f9); border: 1px solid var(--line-strong); box-shadow: var(--shadow-mod); padding: clamp(18px, 2.4vw, 30px) clamp(18px, 2.6vw, 34px); }
.kd-plate__head { display: flex; align-items: baseline; justify-content: space-between; gap: 14px; flex-wrap: wrap; padding-bottom: 12px; margin-bottom: 4px; border-bottom: 1.5px solid var(--ink); }
.kd-plate__head b { font: 700 1.3rem/1 var(--f-cond); letter-spacing: .08em; text-transform: uppercase; }
.kd-plate__head span { font: 500 .74rem/1 var(--f-mono); letter-spacing: .1em; color: var(--ink-dimmer); text-transform: uppercase; }
.kd-plate dl { margin: 0; display: grid; grid-template-columns: repeat(auto-fit, minmax(min(260px, 100%), 1fr)); column-gap: 32px; }
.kd-plate dl > div { display: grid; grid-template-columns: 9.5em minmax(0, 1fr); gap: 12px; padding: 11px 0; border-bottom: 1px dashed var(--line-strong); }
.kd-plate dt { font: 600 .74rem/1.4 var(--f-cond); letter-spacing: .12em; text-transform: uppercase; color: var(--ink-dimmer); }
.kd-plate dd { margin: 0; font: 500 .86rem/1.45 var(--f-mono); color: var(--ink); overflow-wrap: anywhere; }

/* ---------- receipt (Plex Serif), printed by an instrument ---------- */
.kd-receipt { margin: 14px auto 0; max-width: 320px; background: #fbfbfa; border: 1px solid var(--line); border-top: 0; padding: 14px 16px 18px; box-shadow: 0 16px 26px -20px rgba(20,22,26,.5); clip-path: polygon(0 0, 100% 0, 100% calc(100% - 6px), 94% 100%, 88% calc(100% - 6px), 82% 100%, 76% calc(100% - 6px), 70% 100%, 64% calc(100% - 6px), 58% 100%, 52% calc(100% - 6px), 46% 100%, 40% calc(100% - 6px), 34% 100%, 28% calc(100% - 6px), 22% 100%, 16% calc(100% - 6px), 10% 100%, 4% calc(100% - 6px), 0 100%); transform-origin: top; }
.kd-receipt__meta { display: flex; justify-content: space-between; font: 500 .72rem/1 var(--f-mono); letter-spacing: .08em; color: var(--ink-dimmer); padding-bottom: 8px; border-bottom: 1px dashed var(--line-strong); }
.kd-receipt__title { margin: 10px 0 8px; font: 400 1.35rem/1.1 var(--f-serif); color: var(--ink); }
.kd-receipt__rows { display: flex; flex-direction: column; gap: 3px; font: 500 .76rem/1.5 var(--f-mono); color: var(--ink-dim); }
.kd-receipt__rows p { display: flex; justify-content: space-between; gap: 12px; }
.kd-receipt__rows b { color: var(--ink); font-weight: 500; }
.kd-receipt.is-printing { animation: kd-print .7s var(--ease) both; }
@keyframes kd-print { from { transform: scaleY(.1); opacity: .2; } to { transform: none; opacity: 1; } }

/* The hero's board lines sit a little behind the instrument: as the hero leaves the screen
   they fall back more slowly than the page. Scroll-driven, so it costs no script. */
@supports (animation-timeline: view()) {
  @media (prefers-reduced-motion: no-preference) {
    .kd-hero::before { animation: kd-hero-drift linear both; animation-timeline: view(); animation-range: exit 0% exit 100%; }
    @keyframes kd-hero-drift { to { transform: translateY(9%); } }
  }
}