/* qa — drafting-sheet design system. Tokens first, then components. */

@font-face { font-family: "Archivo"; src: url("fonts/archivo-vf.woff2") format("woff2-variations"); font-weight: 100 900; font-stretch: 62% 125%; font-display: swap; }
@font-face { font-family: "Martian Mono"; src: url("fonts/martian-mono-vf.woff2") format("woff2-variations"); font-weight: 100 800; font-stretch: 75% 112.5%; font-display: swap; }

:root {
  /* graphite inspection sheet */
  --ink-0: #121210;
  --ink-1: #191916;
  --ink-2: #21211d;
  --ink-3: #2b2b26;
  --fg: #eeece4;
  --fg-2: #c4c1b5;
  --fg-3: #93907f;
  --rule: rgb(238 236 228 / 0.09);
  --rule-2: rgb(238 236 228 / 0.18);
  --rule-3: rgb(238 236 228 / 0.34);
  /* signal amber: findings and the one primary action */
  --signal: #ffc21a;
  --signal-2: #ffd45a;
  --signal-ink: #1a1400;
  --signal-wash: rgb(255 194 26 / 0.1);
  /* measured-clean, used sparingly and never alone (always with its denominator) */
  --sage: #8fd0bd;
  /* reading paper: bone */
  --paper: #ecebe4;
  --paper-2: #e0ded4;
  --paper-ink: #161613;
  --paper-ink-2: #535146;
  --paper-rule: rgb(22 22 19 / 0.14);
  --paper-find: #9a5400;
  --paper-pass: #3d6b5a;

  --f-display: "Archivo", ui-sans-serif, system-ui, sans-serif;
  --f-body: "Archivo", ui-sans-serif, system-ui, sans-serif;
  --f-mono: "Martian Mono", ui-monospace, "SF Mono", Menlo, monospace;

  --s-1: 4px; --s-2: 8px; --s-3: 12px; --s-4: 16px; --s-5: 24px; --s-6: 32px;
  --s-7: 48px; --s-8: 64px; --s-9: 96px; --s-10: 144px;

  --r-1: 4px; --r-2: 8px; --r-3: 14px;
  --measure: 66ch;
  --page: 1240px;
  --gutter: clamp(20px, 4vw, 48px);
  --ease-out: cubic-bezier(0.16, 1, 0.3, 1);
  --hatch: repeating-linear-gradient(-45deg, var(--rule-2) 0 1px, transparent 1px 7px);
  --hatch-paper: repeating-linear-gradient(-45deg, var(--paper-rule) 0 1px, transparent 1px 7px);
  color-scheme: dark;
}

*, *::before, *::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; scrollbar-color: var(--ink-3) var(--ink-0); }
@media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } }
body {
  margin: 0; background: var(--ink-0); color: var(--fg);
  font: 400 17px/1.6 var(--f-body);
  -webkit-font-smoothing: antialiased; text-rendering: optimizeLegibility;
  font-variant-numeric: tabular-nums;
}
::selection { background: var(--signal); color: var(--signal-ink); }
img, svg { display: block; max-width: 100%; }
a { color: inherit; text-decoration-thickness: 1px; text-underline-offset: 0.22em; text-decoration-color: var(--rule-3); }
a:hover { text-decoration-color: var(--signal); }
:focus-visible { outline: 2px solid var(--signal); outline-offset: 3px; border-radius: 2px; }
code, kbd, pre, .mono { font-family: var(--f-mono); font-size: 0.8em; font-stretch: 87.5%; }
[class*="mono"], .term, .tb, .ver, .crumbs, .matrix, .rev, .kv, .install [role="tab"], .install-cmd pre, .meter-label, .who, .agg, .evid, .finding-top, .flist .m, .flist .cls, .sample-tag, .drawing-head, .zone-ref, .legend, .dim-line, .graph-svg text { font-stretch: 87.5%; }
h1, h2, h3 { font-family: var(--f-display); font-weight: 700; font-stretch: 125%; line-height: 1; letter-spacing: -0.035em; margin: 0; text-wrap: balance; }
h1 { font-size: clamp(2.4rem, 5.6vw, 4.9rem); font-weight: 800; }
h2 { font-size: clamp(1.9rem, 3.6vw, 3.1rem); }
h3 { font-size: clamp(1.35rem, 2vw, 1.6rem); letter-spacing: -0.01em; }
p { margin: 0; text-wrap: pretty; }
.skip { position: absolute; left: -9999px; top: 8px; }
.skip:focus { left: 8px; z-index: 99; background: var(--signal); color: var(--signal-ink); padding: 8px 12px; border-radius: var(--r-1); }

/* ── sheet: the page is one drafting sheet with a construction grid ── */
.sheet-bg {
  --wrapw: min(100vw - 2 * var(--gutter), var(--page));
  background-color: var(--ink-0);
  background-image:
    linear-gradient(var(--rule) 1px, transparent 1px),
    linear-gradient(90deg, var(--rule) 1px, transparent 1px);
  background-size: 100% 96px, calc(var(--wrapw) / 8) 100%;
  background-position: 0 -1px, calc((100vw - var(--wrapw)) / 2 - 1px) 0;
}
.wrap { width: min(100% - 2 * var(--gutter), var(--page)); margin-inline: auto; }
.zone { position: relative; padding-block: var(--s-10); border-top: 1px solid var(--rule-2); }
.zone-ref {
  position: absolute; top: var(--s-4); left: var(--gutter);
  font: 500 11px/1 var(--f-mono); letter-spacing: 0.08em; color: var(--fg-3);
}
.lede { font-size: clamp(1.1rem, 1.5vw, 1.3rem); color: var(--fg-2); max-width: 52ch; line-height: 1.55; }


/* ── nav ── */
.nav { position: sticky; top: 0; z-index: 20; background: rgb(18 18 16 / 0.84); backdrop-filter: blur(14px) saturate(1.2); border-bottom: 1px solid var(--rule-2); }
.nav .wrap { display: flex; align-items: center; gap: var(--s-6); height: 68px; }
.brand { display: flex; align-items: center; gap: 10px; text-decoration: none; font: 800 24px/1 var(--f-display); font-stretch: 125%; letter-spacing: -0.04em; }
.brand svg { width: 30px; height: 30px; color: var(--fg); }
.nav-links { display: flex; gap: var(--s-5); list-style: none; margin: 0; padding: 0; }
.nav-links a { text-decoration: none; color: var(--fg-2); font-size: 15px; font-weight: 500; padding: 6px 2px; background: linear-gradient(currentColor, currentColor) 0 100% / 0 1px no-repeat; transition: color 180ms var(--ease-out), background-size 220ms var(--ease-out); }
.nav-links a:hover, .nav-links a[aria-current="page"] { color: var(--fg); background-size: 100% 1px; }
.nav-end { margin-left: auto; display: flex; align-items: center; gap: var(--s-4); }
.ver { font: 500 12px/1 var(--f-mono); color: var(--fg-3); border: 1px solid var(--rule-2); padding: 6px 8px; border-radius: var(--r-1); }
.menu-btn { display: none; }

/* ── buttons ── */
.btn {
  --b-bg: transparent; --b-fg: var(--fg); --b-bd: var(--rule-3);
  display: inline-flex; align-items: center; gap: 10px; height: 46px; padding: 0 18px;
  background: var(--b-bg); color: var(--b-fg); border: 1px solid var(--b-bd); border-radius: var(--r-2);
  font: 500 15px/1 var(--f-body); text-decoration: none; cursor: pointer;
  transition: background 180ms var(--ease-out), border-color 180ms var(--ease-out), transform 180ms var(--ease-out), box-shadow 180ms var(--ease-out);
}
.btn svg { width: 17px; height: 17px; }
.btn:hover { border-color: var(--signal); }
.btn:active { transform: translateY(1px); }
.btn-primary { --b-bg: var(--signal); --b-fg: var(--signal-ink); --b-bd: var(--signal); }
.btn-primary:hover { --b-bg: var(--signal-2); box-shadow: 0 6px 16px -8px rgb(0 0 0 / 0.6); }
.btn-sm { height: 38px; padding: 0 14px; font-size: 14px; }
.btn[disabled] { opacity: 0.45; cursor: not-allowed; }

/* ── install switcher ── */
.install { border: 1px solid var(--rule-3); border-radius: var(--r-3); background: var(--ink-1); overflow: hidden; max-width: 560px; }
.install [role="tablist"] { display: flex; border-bottom: 1px solid var(--rule-2); overflow-x: auto; scrollbar-width: none; }
.install [role="tab"] {
  flex: none; background: none; border: 0; color: var(--fg-3); cursor: pointer;
  padding: 12px 16px; font: 500 13px/1 var(--f-mono); position: relative; transition: color 180ms var(--ease-out);
}
.install [role="tab"]:hover { color: var(--fg-2); }
.install [role="tab"][aria-selected="true"] { color: var(--fg); }
.install [role="tab"]::after { content: ""; position: absolute; left: 12px; right: 12px; bottom: -1px; height: 2px; background: var(--fg); transform: scaleX(0); transition: transform 220ms var(--ease-out); }
.install [role="tab"][aria-selected="true"]::after { transform: scaleX(1); }
.install[data-moved] .install-cmd:not([hidden]) { animation: tabin 200ms var(--ease-out); }
.install:target { animation: arrive 1400ms var(--ease-out); }
@keyframes arrive { from { border-color: var(--signal); } }
.install-cmd { display: flex; align-items: flex-start; gap: var(--s-3); padding: 18px 16px 18px 18px; }
.install-cmd pre { margin: 0; flex: 1; min-width: 0; white-space: pre-wrap; overflow-wrap: anywhere; word-break: normal; font: 400 14.5px/1.6 var(--f-mono); color: var(--fg); }
.install-cmd pre .p { color: var(--fg-3); -webkit-user-select: none; user-select: none; }
.copy-feedback:not(.sr-only) { position: fixed; bottom: 24px; left: 20px; right: 20px; width: fit-content; max-width: calc(100vw - 40px); margin-inline: auto; z-index: 20; padding: 12px 16px; color: var(--fg); background: var(--ink-1); border: 1px solid var(--rule-3); border-radius: var(--r-1); }
.install-cmd pre .c { color: var(--fg-3); }
.copy {
  flex: none; display: inline-grid; place-items: center; width: 36px; height: 36px; border-radius: var(--r-2);
  background: var(--signal); border: 1px solid var(--signal); color: var(--signal-ink); cursor: pointer;
  transition: color 160ms, border-color 160ms, background 160ms;
}
.copy:hover { background: var(--signal-2); }
.copy svg { width: 16px; height: 16px; }
.copy .ok { display: none; color: var(--signal-ink); }
.copy[data-copied] .ok { display: block; animation: tick 220ms var(--ease-out); }
.copy[data-failed] { background: var(--ink-3); border-color: var(--rule-3); color: var(--fg); }
@keyframes tick { from { opacity: 0; transform: scale(0.5); } }
.copy[data-copied] .cp { display: none; }
.install-note { padding: 12px 18px; border-top: 1px solid var(--rule); font-size: 13px; color: var(--fg-3); display: flex; gap: var(--s-4); flex-wrap: wrap; }
.install-note b { color: var(--fg-2); font-weight: 500; }

/* ── the drawing sheet frame (corner ticks + title block) ── */
.drawing {
  position: relative; background: var(--ink-1); border: 1px solid var(--rule-3); border-radius: 0;
}
.drawing::before, .drawing::after {
  content: ""; position: absolute; width: 14px; height: 14px; border: 1.5px solid var(--fg-2); pointer-events: none;
}
.drawing::before { top: -8px; left: -8px; border-right: 0; border-bottom: 0; }
.drawing::after { bottom: -8px; right: -8px; border-left: 0; border-top: 0; }
.drawing-head {
  display: flex; justify-content: space-between; gap: var(--s-4); padding: 10px 14px; border-bottom: 1px solid var(--rule-2);
  font: 500 11px/1.2 var(--f-mono); letter-spacing: 0.06em; color: var(--fg-3); text-transform: uppercase;
}
.drawing-head .dot { display: inline-block; width: 7px; height: 7px; border-radius: 50%; background: var(--fg-2); margin-right: 8px; vertical-align: 1px; }

/* terminal replay */
.term { padding: 18px 18px 8px; font: 400 13.5px/1.75 var(--f-mono); color: var(--fg-2); min-height: 248px; }
.term .ln { white-space: pre-wrap; word-break: break-word; }
.term .p { color: var(--fg-3); }
.term .cmd { color: var(--fg); }
.term .dim { color: var(--fg-3); }
.term .f { color: var(--signal-2); }
.term .ok { color: var(--sage); }
.term .caret { display: inline-block; width: 8px; height: 1.1em; background: var(--fg-2); vertical-align: -3px; animation: blink 1.1s steps(1) infinite; }
@keyframes blink { 50% { opacity: 0; } }
@media (prefers-reduced-motion: reduce) { .term .caret { animation: none; } }

/* title block */
.titleblock { display: grid; grid-template-columns: repeat(4, 1fr); border-top: 1px solid var(--rule-3); }
.tb { padding: 10px 12px 12px; border-right: 1px solid var(--rule-2); border-bottom: 1px solid var(--rule-2); min-width: 0; }
.tb:nth-child(4n) { border-right: 0; }
.tb:nth-last-child(-n+4) { border-bottom: 0; }
.tb dt { font: 500 11px/1.2 var(--f-mono); letter-spacing: 0.08em; text-transform: uppercase; color: var(--fg-3); }
.tb dd { margin: 6px 0 0; font: 500 19px/1.1 var(--f-mono); color: var(--fg); }
.tb dd small { font-size: 12px; color: var(--fg-3); font-weight: 400; }
.tb.is-find dd { color: var(--signal); }
.tb.is-hatch { background-image: var(--hatch); }
.tb.is-wide { grid-column: span 2; }
.sample-tag { font: 500 11px/1 var(--f-mono); letter-spacing: 0.08em; color: var(--fg-3); padding: 9px 14px; border-top: 1px solid var(--rule-2); text-transform: uppercase; display: flex; justify-content: space-between; }

/* ── denominator meter: never a bare check ── */
.meter { display: grid; gap: 6px; }
.meter-bar { height: 8px; border-radius: 1px; background: var(--hatch), var(--ink-2); border: 1px solid var(--rule-2); overflow: hidden; display: flex; }
.meter-bar i { display: block; height: 100%; background: var(--fg-2); }
.meter-bar i.find { background: var(--signal); }
.meter-label { display: flex; justify-content: space-between; font: 400 12px/1.3 var(--f-mono); color: var(--fg-3); }
.meter-label b { color: var(--fg); font-weight: 500; }

/* ── hero ── */
.hero { padding-block: clamp(56px, 9vw, 128px) var(--s-9); }
.hero { position: relative; }
.hero > .wrap:not(.colticks):not(.stages-wrap) { display: grid; grid-template-columns: repeat(8, minmax(0, 1fr)); column-gap: 0; align-items: center; }
.hero > .wrap:not(.colticks):not(.stages-wrap) > :first-child { grid-column: 1 / 5; padding-right: clamp(24px, 4vw, 64px); }
.hero > .wrap > .drawing { grid-column: 5 / 9; }
.hero h1 em { font-style: normal; color: var(--fg); position: relative; display: inline-block; }
.hero h1 em::after { content: attr(data-dim); position: absolute; left: 0; right: 0.3em; top: calc(100% + 6px); padding-top: 10px; border-top: 1px solid var(--rule-3); font: 400 11px/1 var(--f-mono); font-stretch: 87.5%; letter-spacing: 0.02em; color: var(--fg-3); text-align: center; background: linear-gradient(var(--rule-3), var(--rule-3)) left -1px / 1px 11px no-repeat, linear-gradient(var(--rule-3), var(--rule-3)) right -1px / 1px 11px no-repeat; }
.hero h1 { margin-bottom: 44px; }
.colticks { display: grid; grid-template-columns: repeat(8, 1fr); position: absolute; top: 10px; left: 0; right: 0; font: 500 11px/1 var(--f-mono); font-stretch: 87.5%; color: var(--fg-3); pointer-events: none; }
.colticks span { padding-left: 6px; border-left: 1px solid var(--rule-3); height: 10px; display: flex; align-items: flex-start; }
.hero .zone-ref { top: 30px; }
.hero .lede { margin-top: var(--s-5); }
.hero .install { margin-top: var(--s-6); }
.hero-actions { display: flex; gap: var(--s-3); margin-top: var(--s-5); flex-wrap: wrap; align-items: center; }
.hero-actions .meta { font-size: 14px; color: var(--fg-3); margin-left: var(--s-2); }

/* ── redline drawing (signature) ── */
.redline { display: grid; grid-template-columns: minmax(0, 1.35fr) minmax(0, 1fr); gap: clamp(32px, 5vw, 72px); align-items: start; margin-top: var(--s-8); }
.redline-fig { position: relative; aspect-ratio: 16 / 11; }
.redline-fig svg { width: 100%; height: 100%; overflow: visible; }
.redline-fig .ui { fill: none; stroke: var(--fg-3); stroke-width: 1.2; }
.redline-fig .ui-fill { fill: var(--ink-2); stroke: var(--rule-3); }
.redline-fig .ui-soft { fill: var(--ink-3); stroke: none; }
.redline-fig .hatch-fill { fill: url(#hatch); stroke: var(--rule-3); stroke-dasharray: 4 4; }
.redline-fig .mark { fill: none; stroke: var(--signal); stroke-width: 1.6; }
.redline-fig .lead { fill: none; stroke: var(--signal); stroke-width: 1.2; stroke-dasharray: 600; stroke-dashoffset: 0; }
.redline-fig .bubble { fill: var(--signal); }
.redline-fig .bubble-t { fill: var(--signal-ink); font: 500 12px var(--f-mono); text-anchor: middle; dominant-baseline: central; }
.redline-fig .lbl { fill: var(--fg-3); font: 400 11px var(--f-mono); letter-spacing: 0.04em; }
/* drawn once when .in is set; the figure is complete before and after */
.redline-fig.in .lead { animation: draw 1100ms var(--ease-out) backwards; }
.redline-fig.in .bubble, .redline-fig.in .bubble-t, .redline-fig.in .mark { animation: appear 400ms var(--ease-out) backwards; }
.redline-fig.in .d1 { animation-delay: 0ms; } .redline-fig.in .d2 { animation-delay: 220ms; }
.redline-fig.in .d3 { animation-delay: 440ms; } .redline-fig.in .d4 { animation-delay: 660ms; }
@keyframes draw { from { stroke-dashoffset: 600; } }
@keyframes appear { from { opacity: 0; } }

.notes { list-style: none; margin: 0; padding: 0; counter-reset: n; display: grid; }
.notes li { display: grid; grid-template-columns: 30px 1fr; gap: var(--s-4); padding: 18px 0; border-top: 1px solid var(--rule-2); }
.notes li:last-child { border-bottom: 1px solid var(--rule-2); }
.notes .n { width: 26px; height: 26px; border-radius: 50%; background: var(--signal); color: var(--signal-ink); display: grid; place-items: center; font: 500 12px/1 var(--f-mono); }
.notes h3 { font-family: var(--f-body); font-size: 17px; font-weight: 600; letter-spacing: 0; line-height: 1.35; }
.notes p { color: var(--fg-2); font-size: 15px; margin-top: 4px; }
.notes .agg { display: inline-block; margin-top: 8px; font: 400 12px/1.4 var(--f-mono); color: var(--fg-3); }

/* ── pipeline: one section drawing, not cards ── */
.pipeline { margin-top: var(--s-8); position: relative; }
.pipe-track { display: grid; grid-template-columns: repeat(5, minmax(0, 1fr)); position: relative; }
.pipe-track::before { content: ""; position: absolute; left: 0; right: 0; top: 23px; height: 1px; background: var(--rule-3); }
.station { position: relative; padding-right: var(--s-5); }
.station .node { width: 46px; height: 46px; border: 1px solid var(--rule-3); background: var(--ink-0); border-radius: 50%; display: grid; place-items: center; position: relative; z-index: 1; }
.station .node svg { width: 20px; height: 20px; color: var(--fg-2); }
.station.hot .node { border-color: var(--signal); background: var(--signal-wash); }
.station.hot .node svg { color: var(--signal); }
.station h3 { font-family: var(--f-body); font-size: 17px; font-weight: 600; letter-spacing: 0; margin-top: var(--s-5); }
.station p { color: var(--fg-2); font-size: 15px; margin-top: var(--s-2); max-width: 26ch; }
.station .who { display: block; margin-top: var(--s-3); font: 400 12px/1.3 var(--f-mono); color: var(--fg-3); }
.dim-line { display: flex; align-items: center; gap: var(--s-3); margin-top: var(--s-7); font: 400 12px/1 var(--f-mono); color: var(--fg-3); }
.dim-line::before, .dim-line::after { content: ""; flex: 1; height: 1px; background: var(--rule-3); }
.dim-line .tick { width: 1px; height: 12px; background: var(--rule-3); flex: none; }

/* ── exit-code contract ── */
.contract { margin-top: var(--s-8); border-top: 1px solid var(--rule-3); }
.contract-row { display: grid; grid-template-columns: 160px minmax(0, 1fr) minmax(0, 1.2fr); gap: var(--s-6); align-items: baseline; padding: var(--s-6) 0; border-bottom: 1px solid var(--rule-3); }
.contract-row .code { font: 800 clamp(56px, 7vw, 104px)/0.9 var(--f-display); font-stretch: 125%; color: var(--fg); }
.contract-row.c1 .code { color: var(--signal); }
.contract-row.c2 .code { -webkit-text-stroke: 1px var(--fg-2); color: transparent; }
.contract-row h3 { font-family: var(--f-body); font-size: 20px; font-weight: 600; letter-spacing: 0; }
.contract-row p { color: var(--fg-2); max-width: 48ch; }

/* ── paper section (Read) ── */
.paper { background: var(--paper); color: var(--paper-ink); color-scheme: light; }
.paper .zone { border-top-color: var(--paper-rule); }
.paper .zone-ref { color: var(--paper-ink-2); }
.paper .lede { color: var(--paper-ink-2); }
.paper ::selection { background: var(--paper-ink); color: var(--paper); }

/* coverage matrix */
.matrix-wrap { margin-top: var(--s-7); overflow-x: auto; border: 1px solid var(--paper-rule); background: #f6f5f0; border-radius: var(--r-1); }
.matrix { width: 100%; border-collapse: collapse; font: 400 13px/1.3 var(--f-mono); min-width: 640px; }
.matrix th, .matrix td { padding: 11px 14px; border-bottom: 1px solid var(--paper-rule); text-align: left; white-space: nowrap; }
.matrix thead th { font-weight: 500; font-size: 11px; letter-spacing: 0.08em; text-transform: uppercase; color: var(--paper-ink-2); background: var(--paper-2); }
.matrix tbody th { font-weight: 500; color: var(--paper-ink); }
.cell { display: inline-flex; align-items: center; gap: 8px; }
.cell i { width: 14px; height: 14px; border-radius: 2px; flex: none; border: 1px solid var(--paper-rule); }
.cell.pass i { background: var(--paper-pass); border-color: var(--paper-pass); }
.cell.find i { background: var(--paper-find); border-color: var(--paper-find); }
.cell.none i { background: var(--hatch-paper), #fff; }
.cell.none { color: var(--paper-ink-2); }
.legend { display: flex; gap: var(--s-5); flex-wrap: wrap; margin-top: var(--s-4); font: 400 12px/1.4 var(--f-mono); color: var(--paper-ink-2); }

/* finding card */
.findings { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: var(--s-4); margin-top: var(--s-6); }
.finding { background: #f6f5f0; border: 1px solid var(--paper-rule); border-radius: var(--r-2); padding: var(--s-5); display: grid; gap: var(--s-3); }
.finding-top { display: flex; align-items: center; gap: var(--s-3); font: 500 12px/1 var(--f-mono); color: var(--paper-ink-2); }
.sev { padding: 4px 7px; border-radius: 3px; background: var(--paper-find); color: #fff; letter-spacing: 0.04em; }
.sev.p2 { background: var(--paper-ink); }
.finding h3 { font-family: var(--f-body); font-size: 17px; font-weight: 600; letter-spacing: 0; line-height: 1.35; }
.finding p { color: var(--paper-ink-2); font-size: 15px; }
.finding code { background: var(--paper-2); padding: 2px 6px; border-radius: 3px; font-size: 12.5px; }
.finding .evid { display: flex; gap: var(--s-4); font: 400 12px/1.3 var(--f-mono); color: var(--paper-ink-2); border-top: 1px solid var(--paper-rule); padding-top: var(--s-3); }


/* ── agents ── */
.agents { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1.1fr); gap: clamp(32px, 5vw, 72px); align-items: start; margin-top: var(--s-7); }
.agent-list { list-style: none; padding: 0; margin: 0; }
.agent-list li { display: flex; justify-content: space-between; gap: var(--s-4); padding: 14px 0; border-bottom: 1px solid var(--rule-2); }
.agent-list li span:last-child { font: 400 13px/1.5 var(--f-mono); color: var(--fg-3); text-align: right; }
.prompt-box { border: 1px solid var(--rule-3); border-radius: var(--r-3); background: var(--ink-1); }
.prompt-box header { display: flex; justify-content: space-between; align-items: center; padding: 10px 12px 10px 16px; border-bottom: 1px solid var(--rule-2); font: 500 12px/1 var(--f-mono); color: var(--fg-3); }
.prompt-box p { padding: 18px 16px; font: 400 14px/1.7 var(--f-mono); color: var(--fg); }

/* ── final CTA ── */
.cta { text-align: left; }
.cta .wrap { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1fr); gap: var(--s-8); align-items: end; }
.cta h2 { font-size: clamp(2.6rem, 6vw, 5.5rem); }

/* ── footer + revision table ── */
.footer { border-top: 1px solid var(--rule-3); padding-block: var(--s-8) var(--s-7); font-size: 14px; color: var(--fg-3); }
.footer .wrap { display: grid; grid-template-columns: 1.2fr 1fr; gap: var(--s-8); }
.rev { width: 100%; border-collapse: collapse; font: 400 12.5px/1.4 var(--f-mono); }
.rev th, .rev td { text-align: left; padding: 9px 10px; border: 1px solid var(--rule-2); }
.rev th { font-weight: 500; font-size: 11px; letter-spacing: 0.08em; text-transform: uppercase; color: var(--fg-3); }
.rev td { color: var(--fg-2); }
.foot-links { display: grid; grid-template-columns: repeat(2, 1fr); gap: var(--s-2) var(--s-6); list-style: none; padding: 0; margin: var(--s-5) 0 0; }
.foot-links a { color: var(--fg-2); text-decoration: none; }
.foot-links a:hover { color: var(--fg); }
.legal { margin-top: var(--s-6); font-size: 13px; }

/* ── responsive ── */
@media (max-width: 980px) {
  .hero .wrap:not(.colticks), .redline, .agents, .cta .wrap, .footer .wrap { grid-template-columns: minmax(0, 1fr); }
  .pipe-track { grid-template-columns: minmax(0, 1fr); gap: var(--s-6); }
  .pipe-track::before { left: 23px; right: auto; top: 0; bottom: 0; width: 1px; height: auto; }
  .station { display: grid; grid-template-columns: 46px 1fr; column-gap: var(--s-5); }
  .station h3 { margin-top: 10px; }
  .station > :not(.node) { grid-column: 2; }
  .station .node { grid-row: span 3; }
  .contract-row { grid-template-columns: 96px minmax(0, 1fr); }
  .contract-row p { grid-column: 2; }
  .sheet-bg { background-size: 100% 96px, calc(var(--wrapw) / 4) 100%; }
}
@media (max-width: 760px) {
  body { font-size: 16px; }
  .nav-links, .ver { display: none; }
  .menu-btn { display: inline-grid; place-items: center; width: 42px; height: 42px; background: none; border: 1px solid var(--rule-3); border-radius: var(--r-2); color: var(--fg); cursor: pointer; }
  .menu-btn svg { width: 18px; height: 18px; }
  .nav.open .nav-links { display: grid; position: absolute; top: 68px; left: 0; right: 0; background: var(--ink-0); border-bottom: 1px solid var(--rule-3); padding: var(--s-4) var(--gutter) var(--s-6); gap: 0; }
  .nav.open .nav-links a { display: block; padding: 14px 0; font-size: 18px; border-bottom: 1px solid var(--rule); }
  .nav-end .btn { display: none; }
  .zone { padding-block: var(--s-9); }
  .titleblock { grid-template-columns: repeat(2, 1fr); }
  .tb:nth-child(4n) { border-right: 1px solid var(--rule-2); }
  .tb:nth-child(2n) { border-right: 0; }
  .tb:nth-last-child(-n+4) { border-bottom: 1px solid var(--rule-2); }
  .tb:nth-last-child(-n+2) { border-bottom: 0; }
  .tb.is-wide { grid-column: span 2; }
  .findings { grid-template-columns: minmax(0, 1fr); }
  .contract-row { grid-template-columns: 1fr; gap: var(--s-3); }
  .contract-row p { grid-column: auto; }
  .announce { font-size: 13px; }
  .announce span.long { display: none; }
  .foot-links { grid-template-columns: 1fr 1fr; }
}
.install-cmd[hidden] { display: none; }
.install-dl > div { min-width: 0; flex: 1; font-size: 14px; color: var(--fg-2); }
.install-dl p { margin: 0 0 10px; }
.install-dl pre + p { margin-top: 12px; }
.install-dl .dl { margin-top: 0; margin-bottom: 12px; font-size: 13px; }
.install-dl .dl td, .install-dl .dl th { padding: 8px 8px 8px 0; }
.install-dl .dl code, .install-dl .dl a { overflow-wrap: anywhere; word-break: break-all; }
.install-dl .dl a { color: var(--fg); }
.tb.is-hatch dd, .tb.is-hatch dt { background: var(--ink-1); width: fit-content; padding: 1px 4px; margin-left: -4px; }
.install-cmd pre { hyphens: none; }

/* ── report page (Operate) ── */
.rp-head { padding-block: var(--s-8) var(--s-6); border-bottom: 1px solid var(--rule-3); }
.rp-head .wrap:first-child { display: grid; grid-template-columns: minmax(0, 1fr) auto; gap: var(--s-6); align-items: end; }
.rp-head h1 { font-size: clamp(2.2rem, 4.4vw, 3.6rem); }
.rp-head p { color: var(--fg-2); margin-top: var(--s-3); }
.crumbs { font: 400 13px/1 var(--f-mono); color: var(--fg-3); margin-bottom: var(--s-4); display: flex; gap: 8px; }
.crumbs a { color: var(--fg-2); text-decoration: none; }
.rp-tb { margin-top: var(--s-6); border: 1px solid var(--rule-3); border-radius: var(--r-1); background: var(--ink-1); }
.rp-tb .titleblock { grid-template-columns: repeat(7, minmax(0, 1fr)); border-top: 0; }
.rp-tb .tb:nth-child(4n) { border-right: 1px solid var(--rule-2); }
.rp-tb .tb:last-child { border-right: 0; }
.rp-tb .tb { border-bottom: 0; }
.rp-tb .meter { padding: 14px 14px 16px; border-top: 1px solid var(--rule-2); }
.rp-tabs { display: flex; gap: var(--s-1); border-bottom: 1px solid var(--rule-2); margin-top: var(--s-6); overflow-x: auto; }
.rp-tabs [role="tab"] { background: none; border: 0; color: var(--fg-3); padding: 12px 14px; font: 500 14px/1 var(--f-body); cursor: pointer; position: relative; white-space: nowrap; }
.rp-tabs [role="tab"] .count { font: 400 12px var(--f-mono); color: var(--fg-3); margin-left: 6px; }
.rp-tabs [role="tab"][aria-selected="true"] { color: var(--fg); }
.rp-tabs [role="tab"][aria-selected="true"]::after { content: ""; position: absolute; inset: auto 10px -1px; height: 2px; background: var(--signal); }
.rp-body { padding-block: var(--s-6) var(--s-9); }
.split { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1.25fr); gap: var(--s-5); align-items: start; }
.flist { list-style: none; margin: 0; padding: 0; border: 1px solid var(--rule-2); border-radius: var(--r-2); overflow: hidden; }
.flist button { all: unset; box-sizing: border-box; display: grid; grid-template-columns: 34px 1fr auto; gap: var(--s-3); width: 100%; padding: 14px 16px; border-bottom: 1px solid var(--rule-2); cursor: pointer; align-items: start; }
.flist li:last-child button { border-bottom: 0; }
.flist button:hover { background: var(--ink-1); }
.flist button[aria-selected="true"] { background: var(--ink-2); box-shadow: inset 2px 0 0 var(--signal); }
.flist button:focus-visible { outline: 2px solid var(--signal); outline-offset: -2px; }
.flist .sevd { font: 500 11px/1 var(--f-mono); padding: 4px 0; text-align: center; border-radius: 3px; background: var(--signal); color: var(--signal-ink); }
.flist .sevd.p2 { background: var(--ink-3); color: var(--fg-2); box-shadow: inset 0 0 0 1px var(--rule-3); }
.flist .t { font-weight: 500; line-height: 1.35; }
.flist .m { display: block; font: 400 12px/1.4 var(--f-mono); color: var(--fg-3); margin-top: 4px; }
.flist .cls { font: 400 12px/1.4 var(--f-mono); color: var(--fg-3); }
.detail { border: 1px solid var(--rule-2); border-radius: var(--r-2); background: var(--ink-1); position: sticky; top: 88px; }
.detail header { padding: var(--s-5); border-bottom: 1px solid var(--rule-2); }
.detail h2 { font-size: 24px; letter-spacing: -0.02em; margin-top: var(--s-3); }
.detail section { padding: var(--s-5); border-bottom: 1px solid var(--rule-2); }
.detail section:last-child { border-bottom: 0; }
.detail h3 { font: 500 11px/1 var(--f-mono); letter-spacing: 0.08em; text-transform: uppercase; color: var(--fg-3); margin-bottom: var(--s-3); }
.detail ol { margin: 0; padding-left: 20px; color: var(--fg-2); display: grid; gap: 6px; }
.detail pre { margin: 0; font: 400 13px/1.6 var(--f-mono); color: var(--fg-2); white-space: pre-wrap; background: var(--ink-0); border: 1px solid var(--rule); padding: 12px; border-radius: var(--r-1); }
.shots { display: grid; grid-template-columns: 1fr 1fr; gap: var(--s-3); }
.shot { aspect-ratio: 16 / 10; border: 1px solid var(--rule-2); border-radius: var(--r-1); background: var(--ink-0); position: relative; overflow: hidden; }
.shot span { position: absolute; left: 8px; bottom: 8px; font: 400 11px/1 var(--f-mono); color: var(--fg-3); background: var(--ink-0); padding: 4px 6px; border-radius: 2px; }
.shot svg { width: 100%; height: 100%; }
.kv { display: grid; grid-template-columns: auto 1fr; gap: 6px var(--s-4); font: 400 13px/1.5 var(--f-mono); }
.kv dt { color: var(--fg-3); } .kv dd { margin: 0; color: var(--fg); word-break: break-all; }
.graph-panel { border: 1px solid var(--rule-2); border-radius: var(--r-2); background: var(--ink-1); overflow: hidden; }
.graph-panel header { display: flex; justify-content: space-between; align-items: center; padding: 12px 16px; border-bottom: 1px solid var(--rule-2); font: 400 12px/1 var(--f-mono); color: var(--fg-3); gap: var(--s-4); flex-wrap: wrap; }
.graph-legend { display: flex; gap: var(--s-4); flex-wrap: wrap; }
.graph-legend span { display: inline-flex; align-items: center; gap: 6px; }
.graph-legend i { width: 10px; height: 10px; border-radius: 50%; border: 1px solid var(--fg-3); }
.graph-svg { width: 100%; height: auto; display: block; }
.graph-svg .e { stroke: var(--rule-3); stroke-width: 1; fill: none; }
.graph-svg .e.hot { stroke: var(--signal); stroke-width: 1.4; }
.graph-svg .n circle { fill: var(--ink-0); stroke: var(--fg-3); stroke-width: 1.2; }
.graph-svg .n.route circle { stroke: var(--fg-2); }
.graph-svg .n.find circle { fill: var(--signal); stroke: var(--signal); }
.graph-svg .n.cause circle { fill: var(--signal-wash); stroke: var(--signal); stroke-dasharray: 3 2; }
.graph-svg .n.unm circle { fill: url(#ghatch); stroke: var(--rule-3); stroke-dasharray: 3 3; }
.graph-svg text { fill: var(--fg-2); font: 400 11px var(--f-mono); }
.graph-svg .col { fill: var(--fg-3); font: 500 11px var(--f-mono); letter-spacing: 0.08em; }
.graph-svg .n { cursor: pointer; }
.graph-svg .n:hover circle, .graph-svg .n:focus circle { stroke-width: 2.4; }
.graph-svg .n:focus { outline: none; }
.empty { border: 1px dashed var(--rule-3); border-radius: var(--r-2); padding: var(--s-7); text-align: center; color: var(--fg-2); }
.empty h3 { font-family: var(--f-body); font-size: 18px; font-weight: 600; letter-spacing: 0; color: var(--fg); }
.empty p { margin-top: 6px; }
.empty code { color: var(--signal-2); }
@media (max-width: 980px) {
  .split { grid-template-columns: minmax(0, 1fr); }
  .detail { position: static; }
  .rp-tb .titleblock { grid-template-columns: repeat(4, minmax(0, 1fr)); }
  .rp-head .wrap:first-child { grid-template-columns: minmax(0, 1fr); }
}
@media (max-width: 760px) {
  .rp-tb .titleblock { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .rp-tb .tb { border-bottom: 1px solid var(--rule-2); }
  .shots { grid-template-columns: 1fr; }
}
.rev td:nth-child(-n+2) { white-space: nowrap; }

.jev { grid-column: 1 / -1; border-top: 1px solid var(--rule-3); padding-top: var(--s-6); display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1.4fr); gap: var(--s-6); }
.jev h3 { font-size: clamp(1.3rem, 2vw, 1.7rem); }
.jev p { color: var(--fg-2); max-width: 64ch; }
@media (max-width: 760px) { .jev { grid-template-columns: 1fr; } }
.term { font-size: 12.5px; font-stretch: 75%; }
.term .ln { white-space: pre; overflow: hidden; text-overflow: ellipsis; }
@media (max-width: 760px) { .term .ln { white-space: pre-wrap; } }

/* ── docs (Read) ── */
.doc { display: grid; grid-template-columns: 220px minmax(0, 1fr); gap: clamp(32px, 5vw, 72px); padding-block: var(--s-8) var(--s-10); }
.toc { position: sticky; top: 96px; align-self: start; font-size: 14px; }
.toc p { font: 500 11px/1 var(--f-mono); font-stretch: 87.5%; letter-spacing: 0.08em; text-transform: uppercase; color: var(--fg-3); margin-bottom: var(--s-3); }
.toc ol { list-style: none; margin: 0; padding: 0; border-left: 1px solid var(--rule-2); }
.toc a { display: block; padding: 6px 0 6px 14px; margin-left: -1px; border-left: 1px solid transparent; color: var(--fg-2); text-decoration: none; }
.toc a:hover { color: var(--fg); }
.toc a[aria-current="true"] { color: var(--fg); border-left-color: var(--signal); }
.prose { max-width: 760px; }
.prose > section { padding-top: var(--s-7); margin-top: var(--s-7); border-top: 1px solid var(--rule-2); scroll-margin-top: 88px; }
.prose > section:first-child { border-top: 0; margin-top: 0; padding-top: 0; }
.prose h2 { font-size: clamp(1.6rem, 2.6vw, 2.2rem); margin-bottom: var(--s-4); }
.prose p, .prose li { color: var(--fg-2); max-width: var(--measure); }
.prose p + p { margin-top: var(--s-3); }
.prose ul, .prose ol { padding-left: 20px; display: grid; gap: 6px; margin: var(--s-3) 0 0; }
.prose code { background: var(--ink-2); border: 1px solid var(--rule); padding: 1px 6px; border-radius: 4px; color: var(--fg); }
.doc-h3 { font-family: var(--f-body); font-size: 13px; font-weight: 600; font-stretch: 100%; letter-spacing: 0.06em; text-transform: uppercase; color: var(--fg-3); margin: var(--s-6) 0 var(--s-3); }
.codeblock { position: relative; margin-top: var(--s-4); border: 1px solid var(--rule-2); border-radius: var(--r-2); background: var(--ink-1); }
.codeblock header { display: flex; justify-content: space-between; align-items: center; padding: 6px 8px 6px 14px; border-bottom: 1px solid var(--rule); font: 400 11px/1 var(--f-mono); font-stretch: 87.5%; color: var(--fg-3); }
.codeblock pre { margin: 0; padding: 14px; overflow-x: auto; font: 400 13px/1.7 var(--f-mono); font-stretch: 87.5%; color: var(--fg); }
.codeblock .copy { width: 30px; height: 30px; }
.codeblock .p { color: var(--fg-3); -webkit-user-select: none; user-select: none; }
.codeblock .c { color: var(--fg-3); }
.req { width: 100%; border-collapse: collapse; margin-top: var(--s-4); font-size: 15px; }
.req th, .req td { text-align: left; padding: 10px 12px; border-bottom: 1px solid var(--rule-2); vertical-align: top; }
.req th { font: 500 11px/1.2 var(--f-mono); font-stretch: 87.5%; letter-spacing: 0.08em; text-transform: uppercase; color: var(--fg-3); }
.req td { color: var(--fg-2); }
.req td:first-child { color: var(--fg); font-weight: 500; white-space: nowrap; }
.callout { margin-top: var(--s-4); padding: var(--s-4) var(--s-5); border: 1px solid var(--rule-2); border-radius: var(--r-2); background: var(--signal-wash); color: var(--fg); font-size: 15px; display: flex; gap: var(--s-3); }
.callout svg { flex: none; width: 18px; height: 18px; color: var(--signal); margin-top: 2px; }
.callout.hatch { background: var(--hatch), var(--ink-1); }
.steps { counter-reset: s; list-style: none; padding: 0 !important; }
.steps > li { counter-increment: s; position: relative; padding-left: 44px !important; }
.steps > li::before { content: counter(s); position: absolute; left: 0; top: 0; width: 28px; height: 28px; border: 1px solid var(--rule-3); border-radius: 50%; display: grid; place-items: center; font: 500 12px/1 var(--f-mono); color: var(--fg); }
.steps > li + li { margin-top: var(--s-5); }
.cmd { border: 1px solid var(--rule-2); border-radius: var(--r-2); margin-top: var(--s-3); background: var(--ink-1); }
.cmd summary { list-style: none; display: flex; gap: var(--s-4); align-items: baseline; padding: 14px 16px; cursor: pointer; }
.cmd summary::-webkit-details-marker { display: none; }
.cmd summary::after { content: "+"; margin-left: auto; font: 400 18px/1 var(--f-mono); color: var(--fg-3); }
.cmd[open] summary::after { content: "−"; }
.cmd summary code { background: none; border: 0; padding: 0; font-size: 14px; color: var(--signal); }
.cmd summary span { color: var(--fg-3); font: 400 12px/1.4 var(--f-mono); font-stretch: 87.5%; }
.cmd .usage { margin: 0; padding: 14px 16px; border-top: 1px solid var(--rule); background: var(--ink-0); font: 400 12.5px/1.7 var(--f-mono); font-stretch: 75%; color: var(--fg); overflow-x: auto; }
.cmd-body { padding: 4px 16px 16px; }
.cmd-body p { font-size: 14.5px; margin-top: var(--s-3); }

/* ── changelog ── */
.rel { display: grid; grid-template-columns: 200px minmax(0, 1fr); gap: var(--s-6); padding-block: var(--s-6); border-top: 1px solid var(--rule-2); }
.rel header { display: grid; gap: 6px; align-content: start; position: sticky; top: 96px; }
.rel-v { font: 800 30px/1 var(--f-display); font-stretch: 125%; letter-spacing: -0.03em; }
.rel time { font: 400 12px/1 var(--f-mono); font-stretch: 87.5%; color: var(--fg-3); }
.rel-t { font-size: 20px !important; font-stretch: 112%; letter-spacing: -0.015em; text-transform: none; }
.rel ul { margin: var(--s-3) 0 0; padding-left: 18px; display: grid; gap: 8px; color: var(--fg-2); font-size: 15px; }
.rel li::marker { color: var(--signal); }
.rel code { font-size: 12px; background: var(--ink-2); padding: 1px 5px; border-radius: 3px; color: var(--fg); }
.rel-more { margin-top: var(--s-3); font: 400 12px/1 var(--f-mono); font-stretch: 87.5%; color: var(--fg-3); }

/* ── 404 ── */
.lost { min-height: 70vh; display: grid; align-content: center; padding-block: var(--s-9); }
.lost .big { font: 800 clamp(96px, 18vw, 240px)/0.85 var(--f-display); font-stretch: 125%; letter-spacing: -0.05em; -webkit-text-stroke: 1.5px var(--fg-2); color: transparent; }
.lost h1 { margin-top: var(--s-5); font-size: clamp(1.8rem, 3.4vw, 2.8rem); }
.lost p { color: var(--fg-2); margin-top: var(--s-4); max-width: 52ch; }

/* ── component specimen ── */
.spec { padding-block: var(--s-8) var(--s-10); }
.spec-item { display: grid; grid-template-columns: 240px minmax(0, 1fr); gap: var(--s-6); padding-block: var(--s-6); border-top: 1px solid var(--rule-2); }
.spec-item > header h2 { font-size: 18px; font-stretch: 112%; letter-spacing: -0.01em; }
.spec-item > header p { color: var(--fg-3); font-size: 14px; margin-top: 6px; }
.spec-row { display: flex; flex-wrap: wrap; gap: var(--s-4); align-items: center; }
.swatch { width: 132px; border: 1px solid var(--rule-2); border-radius: var(--r-2); overflow: hidden; font: 400 11px/1.4 var(--f-mono); font-stretch: 87.5%; }
.swatch i { display: block; height: 64px; }
.swatch span { display: block; padding: 8px; color: var(--fg-2); }
.type-spec > * + * { margin-top: var(--s-4); }

@media (max-width: 900px) {
  .doc { grid-template-columns: minmax(0, 1fr); }
  .toc { position: static; }
  .toc ol { display: flex; flex-wrap: wrap; border-left: 0; gap: 4px 14px; }
  .toc a { padding: 4px 0; border-left: 0; }
  .rel, .spec-item { grid-template-columns: minmax(0, 1fr); gap: var(--s-3); }
  .rel header { position: static; display: flex; align-items: baseline; gap: var(--s-4); }
}
.prose li, .prose > section { min-width: 0; } .codeblock { max-width: 100%; }

/* review round 1 */
.drawing .tick { position: absolute; width: 14px; height: 14px; border: 1.5px solid var(--fg-2); pointer-events: none; }
.drawing .tick.tr { top: -8px; right: -8px; border-left: 0; border-bottom: 0; }
.drawing .tick.bl { bottom: -8px; left: -8px; border-right: 0; border-top: 0; }
.drawing .titleblock { margin-left: 25%; border-left: 1px solid var(--rule-3); }
.redline-fig .dimn path { stroke: var(--fg-3); stroke-width: 1; fill: none; }
.redline-fig .dimn text { fill: var(--fg-3); font: 400 11px var(--f-mono); font-stretch: 87.5%; }
.tb-compact { display: none; }
.placeholder { font: 400 12px var(--f-mono); color: var(--paper-find); border: 1px dashed currentColor; padding: 1px 6px; border-radius: 3px; }
.install [role="tablist"] { flex-wrap: wrap; }
/* long reading sits on the bone paper sheet: re-scope the tokens so every component adapts */
.paper-sheet { --ink-0: #fbfaf6; --ink-1: #f6f5f0; --ink-2: #e6e4da; --ink-3: #dad8cd; --fg: var(--paper-ink); --fg-2: var(--paper-ink-2); --fg-3: #6a675b;
  --rule: rgb(22 22 19 / 0.08); --rule-2: rgb(22 22 19 / 0.15); --rule-3: rgb(22 22 19 / 0.3); --signal-wash: rgb(154 84 0 / 0.08); color: var(--fg); background-color: var(--paper);
  background-image: linear-gradient(rgb(22 22 19 / 0.05) 1px, transparent 1px); background-size: 100% 96px; }
.paper-sheet .rel li::marker { color: var(--paper-find); }
.paper-sheet .cmd summary code { color: var(--paper-find); }
.paper-sheet .callout svg { color: var(--paper-find); }
@media (max-width: 980px) {
  .hero > .wrap:not(.colticks):not(.stages-wrap) > :first-child, .hero > .wrap > .drawing { grid-column: 1 / -1; padding-right: 0; }
  .hero > .wrap > .drawing { margin-top: 48px !important; }
  .colticks { grid-template-columns: repeat(4, 1fr); } .colticks span:nth-child(n+5) { display: none; }
  .drawing .titleblock { margin-left: 0; border-left: 0; }
}
@media (max-width: 760px) {
  .tb-compact { display: grid; grid-template-columns: repeat(3, 1fr); margin-top: 28px; border: 1px solid var(--rule-3); }
  .tb-compact > div { padding: 10px 12px; border-right: 1px solid var(--rule-2); }
  .tb-compact > div:last-child { border-right: 0; }
  .tb-compact dt { font: 500 11px/1 var(--f-mono); font-stretch: 87.5%; letter-spacing: 0.08em; text-transform: uppercase; color: var(--fg-3); }
  .tb-compact dd { margin: 6px 0 0; font: 500 18px/1 var(--f-mono); }
  .tb-compact dd small { font-size: 12px; color: var(--fg-3); }
  .tb-compact .is-hatch { background-image: var(--hatch); }
  .tb-compact .is-hatch dd, .tb-compact .is-hatch dt { background: var(--ink-0); width: fit-content; padding: 1px 4px; margin-left: -4px; }
  .hero h1 em::after { font-size: 10px; }
}

/* ── run stages strip ── */
.stages { list-style: none; margin: 56px 0 0; padding: 0; display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); border: 1px solid var(--rule-3); }
.stages li + li { border-left: 1px solid var(--rule-3); }
.stages a { display: grid; gap: 8px; padding: 18px 18px 16px; text-decoration: none; height: 100%; transition: background 160ms var(--ease-out); }
.stages a:hover { background: var(--ink-1); }
.st-k { font: 500 11px/1 var(--f-mono); font-stretch: 87.5%; letter-spacing: 0.08em; text-transform: uppercase; color: var(--fg-3); }
.st-v { font: 400 15px/1.35 var(--f-body); color: var(--fg-2); }
.st-v b { font: 800 26px/1 var(--f-display); font-stretch: 125%; letter-spacing: -0.03em; color: var(--fg); margin-right: 2px; }
.st-l { font: 400 11px/1 var(--f-mono); font-stretch: 87.5%; color: var(--fg-3); }
.term .stage-ln b { color: var(--fg); font-weight: 500; }
.term .stage-ln { color: var(--fg-2); }

/* ── not just pixels ── */
.deep-grid { display: grid; grid-template-columns: minmax(0, 1.25fr) minmax(0, 1fr); gap: clamp(32px, 5vw, 72px); margin-top: var(--s-8); align-items: start; }
.atlas { display: grid; gap: 2px; }
.at-row { display: grid; grid-template-columns: 44px minmax(0, 15em) minmax(0, 1fr) 32px; gap: 12px; align-items: center; padding: 7px 0; border-bottom: 1px solid var(--rule); }
.at-id { font: 500 12px/1 var(--f-mono); font-stretch: 87.5%; color: var(--fg-3); }
.at-name { font-size: 15px; color: var(--fg); white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.at-bar { height: 12px; display: block; }
.at-bar i { display: block; height: 100%; border-radius: 0 4px 4px 0; background: #3987e5; min-width: 2px; }
.at-row.screen .at-bar i { background: var(--fg-2); }
.at-row.screen .at-name::after { content: " · on screen"; color: var(--fg-3); font-size: 13px; }
.at-n { font: 500 14px/1 var(--f-mono); font-stretch: 87.5%; text-align: right; color: var(--fg); }
.atlas-fig { margin: 0; }
.atlas-fig figcaption { display: flex; flex-wrap: wrap; gap: 8px 20px; margin-top: 14px; font-size: 13px; color: var(--fg-3); }
.lg { display: inline-flex; align-items: center; gap: 8px; color: var(--fg-2); }
.lg i { width: 12px; height: 12px; border-radius: 2px; }
.lg i.below { background: #3987e5; } .lg i.screen { background: var(--fg-2); }
.edges { border: 1px solid var(--rule-3); padding: var(--s-6); background: var(--ink-1); }
.edges h3 { font-size: clamp(1.3rem, 2vw, 1.6rem); }
.edges p { color: var(--fg-2); margin-top: var(--s-3); }
.edge-list { list-style: none; padding: 0; margin: var(--s-4) 0 0; display: grid; }
.edge-list li { padding: 10px 0 10px 28px; border-top: 1px solid var(--rule-2); position: relative; color: var(--fg); font-size: 15px; }
.edge-list li::before { content: ""; position: absolute; left: 2px; top: 17px; width: 12px; height: 1px; background: var(--fg-2); box-shadow: 0 -4px 0 -0px transparent; }
.edge-list li::after { content: ""; position: absolute; left: 2px; top: 13px; width: 1px; height: 9px; background: var(--fg-2); }
.edge-more { margin-top: var(--s-5) !important; }
@media (max-width: 980px) { .deep-grid { grid-template-columns: minmax(0, 1fr); } .stages { grid-template-columns: repeat(2, minmax(0, 1fr)); } .stages li:nth-child(3) { border-left: 0; } .stages li:nth-child(n+3) { border-top: 1px solid var(--rule-3); } }
@media (max-width: 760px) { .at-row { grid-template-columns: 36px minmax(0, 1fr) 28px; } .at-bar { grid-column: 2 / 4; grid-row: 2; } .at-name { white-space: normal; } }

/* ── how.html: five layers ── */
.sr-only { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; }
.layers { border-top: 1px solid var(--rule-3); }
.layers-grid { display: grid; grid-template-columns: minmax(0, 0.9fr) minmax(0, 1.1fr); gap: clamp(24px, 4vw, 64px); }
.layer-step { min-height: 78vh; display: flex; flex-direction: column; justify-content: center; padding-block: var(--s-8); opacity: 0.38; transition: opacity 400ms var(--ease-out); }
.layer-step.on { opacity: 1; }
.layer-step .lk { font: 500 12px/1 var(--f-mono); font-stretch: 87.5%; letter-spacing: 0.08em; color: var(--fg-3); }
.layer-step h3 { font-size: clamp(1.8rem, 3.2vw, 2.8rem); margin-top: 12px; }
.layer-step p { color: var(--fg-2); margin-top: var(--s-4); max-width: 52ch; }
.layer-step .lw { font: 400 13px/1.5 var(--f-mono); font-stretch: 87.5%; color: var(--fg); border-left: 1px solid var(--rule-3); padding-left: 12px; }
.layer-step .ln { font-size: 15px; color: var(--fg-3); }
.layer-step code { font-size: 0.82em; background: var(--ink-2); padding: 1px 6px; border-radius: 3px; color: var(--fg); }
.layers-stage { position: sticky; top: 68px; height: calc(100vh - 68px); display: grid; grid-template-rows: 1fr auto auto; padding-block: var(--s-5); }
.layers-stage canvas { width: 100%; height: 100%; min-height: 360px; display: block; }
.layer-legend { list-style: none; margin: 0; padding: 0; display: flex; flex-wrap: wrap; gap: 6px; }
.layer-legend button { background: none; border: 1px solid var(--rule-2); color: var(--fg-3); font: 400 12px/1 var(--f-mono); font-stretch: 87.5%; padding: 8px 10px; border-radius: var(--r-1); cursor: pointer; }
.layer-legend li.on button { color: var(--fg); border-color: var(--fg-2); }
.stage-note { font-size: 13px; color: var(--fg-3); margin-top: 10px; }
.gl-fallback { display: none; }
.no-gl canvas { display: none; } .no-gl .gl-fallback { display: block; border: 1px dashed var(--rule-3); padding: var(--s-5); color: var(--fg-2); }

/* ── figures ── */
.viz { margin: var(--s-8) 0 0; border-top: 1px solid var(--rule-3); padding-top: var(--s-6); display: grid; grid-template-columns: minmax(0, 0.8fr) minmax(0, 1.6fr); gap: var(--s-6); }
.viz figcaption .fig-n { font: 500 12px/1 var(--f-mono); font-stretch: 87.5%; letter-spacing: 0.06em; color: var(--fg-3); }
.viz figcaption h3 { font-size: clamp(1.25rem, 1.9vw, 1.6rem); margin-top: 10px; line-height: 1.12; }
.viz figcaption p { color: var(--fg-2); font-size: 15px; margin-top: var(--s-3); }
.viz figcaption code { font-size: 0.8em; color: var(--fg); }
.viz-body { border: 1px solid var(--rule-2); background: var(--ink-1); padding: var(--s-5); min-width: 0; }
.viz-body.two { display: grid; grid-template-columns: minmax(0, 0.9fr) minmax(0, 1.1fr); gap: var(--s-6); }
.ctls { display: grid; gap: 10px; align-content: start; }
.ctl { display: grid; grid-template-columns: minmax(0, 1fr) auto; gap: 4px 12px; align-items: center; font-size: 14px; color: var(--fg-2); }
.ctl input[type=range] { grid-column: 1 / -1; width: 100%; accent-color: var(--fg-2); height: 22px; }
.ctl output { font: 500 13px/1 var(--f-mono); font-stretch: 87.5%; color: var(--fg); grid-column: 2; grid-row: 1; }
.ctl.chk { grid-template-columns: auto 1fr; cursor: pointer; }
.ctl.chk input { accent-color: var(--signal); width: 16px; height: 16px; }
.ctl input:disabled { opacity: 0.35; }
.derived { font-size: 13px; color: var(--fg-3); }
.derived output { font: 500 13px var(--f-mono); color: var(--fg); }
.derived small { font-family: var(--f-mono); font-stretch: 87.5%; }
.big-num { display: flex; align-items: baseline; gap: 12px; }
.big-num > output { font: 800 56px/1 var(--f-display); font-stretch: 125%; letter-spacing: -0.04em; }
.big-num span { color: var(--fg-3); font-size: 14px; }
.stack-row { display: grid; grid-template-columns: minmax(0, 10em) minmax(0, 1fr) auto; gap: 12px; align-items: center; margin-top: 16px; font-size: 13px; color: var(--fg-3); }
.stack-row[hidden] { display: none; }
.stack { display: flex; gap: 2px; height: 16px; background: var(--ink-0); border: 1px solid var(--rule); }
.stack i { display: block; height: 100%; }
.stack i:last-child { border-radius: 0 4px 4px 0; }
.stack-row output { font: 500 13px var(--f-mono); color: var(--fg-2); }
.legend-dk { list-style: none; padding: 0; margin: 14px 0 0; display: flex; flex-wrap: wrap; gap: 6px 16px; font-size: 13px; color: var(--fg-2); }
.legend-dk i { display: inline-block; width: 10px; height: 10px; border-radius: 2px; margin-right: 6px; vertical-align: -1px; }
.formula { margin-top: 16px; font: 400 13px/1.6 var(--f-mono); font-stretch: 87.5%; color: var(--fg-2); background: var(--ink-0); border: 1px solid var(--rule); padding: 10px 12px; }
.formula b { color: var(--fg); font-weight: 500; }
.fn-row { display: grid; grid-template-columns: 7.5em minmax(0, 1fr) 6.5em; gap: 12px; align-items: center; padding: 5px 0; font-size: 13px; }
.fn-k { font: 400 12px var(--f-mono); font-stretch: 87.5%; color: var(--fg-2); }
.fn-bar { height: 14px; background: var(--ink-0); border: 1px solid var(--rule); }
.fn-bar i { display: block; height: 100%; background: var(--fg-2); border-radius: 0 3px 3px 0; transition: width 240ms var(--ease-out); }
.fn-row.unm .fn-bar { background: var(--hatch), var(--ink-0); } .fn-row.unm .fn-bar i { background: transparent; }
.fn-row.unm .fn-v { color: var(--fg-3); }
.fn-row.gap .fn-bar i { background: var(--signal); }
.fn-v { font: 500 13px var(--f-mono); font-stretch: 87.5%; text-align: right; }
.kt-wrap { display: flex; gap: var(--s-5); flex-wrap: wrap; margin-top: var(--s-4); }
.kt { border-collapse: collapse; font: 500 15px/1 var(--f-mono); }
.kt th, .kt td { width: 64px; height: 52px; text-align: center; border: 1px solid var(--rule-2); }
.kt thead th, .kt tbody th { color: var(--fg-3); font-size: 12px; }
.kt td small { display: block; font-size: 10px; color: var(--signal-ink); margin-top: 4px; font-weight: 400; }
.kt .k-U { background: var(--hatch); }
.kt .diff { background: var(--signal); color: var(--signal-ink); }
.out-k, .out-pl, .out-j, .out-runs, .out-zone { margin-top: var(--s-4); color: var(--fg-2); font-size: 15px; }
.out-k b, .out-pl b, .out-j b, .out-runs b, .out-zone b { color: var(--fg); }
.req.mini { font-size: 13px; margin-top: 4px; } .req.mini td, .req.mini th { padding: 7px 8px; }
.pick { display: inline-block; font: 500 11px/1 var(--f-mono); padding: 4px 6px; border-radius: 3px; margin-right: 4px; }
.pick.g { border: 1px solid var(--fg-2); color: var(--fg); } .pick.x { background: var(--fg); color: var(--ink-0); }
.mx-grid { display: flex; flex-wrap: wrap; gap: var(--s-5); align-items: flex-start; } .mx-grid > div { max-width: 100%; overflow-x: auto; }
.mx { border-collapse: collapse; font: 400 12px/1.2 var(--f-mono); font-stretch: 87.5%; }
.mx th, .mx td { border: 1px solid var(--rule-2); padding: 0; text-align: center; }
.mx thead th { padding: 8px 6px; color: var(--fg-3); font-weight: 500; white-space: nowrap; }
.mx tbody th { padding: 0 8px; text-align: left; color: var(--fg-2); font-weight: 400; white-space: nowrap; }
.mx tbody th button { all: unset; cursor: pointer; padding: 8px 0; display: block; }
.mx tbody th button[aria-pressed="true"] { color: var(--fg); text-decoration: underline; text-underline-offset: 3px; }
.mx td { width: 40px; height: 34px; }
.mx .cell-t { all: unset; width: 100%; height: 34px; display: grid; place-items: center; cursor: pointer; color: var(--fg-3); }
.mx .cell-t[aria-pressed="true"] { color: var(--ink-0); background: var(--fg-2); }
.mx .cell-t:focus-visible, .mx tbody th button:focus-visible { outline: 2px solid var(--signal); outline-offset: -2px; }
.mx.j td { color: var(--fg-3); } .mx.j td.hit { background: var(--fg-2); color: var(--ink-0); }
.mx tr.sel td.hit { background: var(--signal); color: var(--signal-ink); }
.mx tr.sel th { color: var(--fg); }
.band-svg { width: 100%; height: auto; margin-top: var(--s-4); }
.band-svg rect.z-drop { fill: var(--ink-0); stroke: var(--rule-2); } .band-svg rect.z-read { stroke: var(--rule-3); } .band-svg rect.z-lead { fill: var(--ink-3); stroke: var(--rule-3); }
.band-svg text { fill: var(--fg-2); font: 400 12px var(--f-mono); font-stretch: 87.5%; }
.band-svg .axis text { fill: var(--fg-3); }
.band-svg .half { stroke: var(--fg-3); stroke-dasharray: 3 3; } .band-svg .tick-l { fill: var(--fg-3); }
.band-svg .run { fill: var(--fg-2); stroke: var(--ink-1); stroke-width: 2; } .band-svg .run.over { fill: var(--signal); }
.band-svg .cursor line { stroke: var(--fg); stroke-width: 1.5; } .band-svg .cursor circle { fill: var(--fg); }
.band-row { display: flex; align-items: center; justify-content: space-between; gap: var(--s-4); flex-wrap: wrap; }
.fine { font-size: 13px; color: var(--fg-3); margin-top: var(--s-3); }

/* ── session stepper ── */
.session { display: grid; grid-template-columns: minmax(0, 0.8fr) minmax(0, 1.6fr); gap: var(--s-5); margin-top: var(--s-7); }
.session [role=tablist] { display: grid; align-content: start; border-top: 1px solid var(--rule-3); }
.session [role=tab] { all: unset; display: flex; justify-content: space-between; gap: 12px; padding: 14px 4px; border-bottom: 1px solid var(--rule-2); cursor: pointer; color: var(--fg-2); font-size: 15px; }
.session [role=tab] span { font: 400 12px var(--f-mono); color: var(--fg-3); }
.session [role=tab][aria-selected=true] { color: var(--fg); box-shadow: inset 2px 0 0 var(--fg); padding-left: 14px; }
.session [role=tab]:focus-visible { outline: 2px solid var(--signal); outline-offset: 2px; }
.session-panels [role=tabpanel] p { color: var(--fg-2); margin-top: var(--s-4); }
.sess { margin: 0; background: var(--ink-1); border: 1px solid var(--rule-3); padding: 18px; font: 400 13px/1.75 var(--f-mono); font-stretch: 75%; color: var(--fg); overflow-x: auto; white-space: pre; }
.sess .p, .sess .dim { color: var(--fg-3); } .sess .f { color: var(--signal); }

@media (max-width: 980px) {
  .layers-grid { grid-template-columns: minmax(0, 1fr); }
  .layers-stage { position: sticky; top: 68px; height: 46vh; z-index: 1; background: var(--ink-0); border-bottom: 1px solid var(--rule-3); order: -1; padding-block: 8px; }
  .layer-step { min-height: 60vh; }
  .stage-note, .layer-legend { display: none; }
  .viz, .viz-body.two, .session { grid-template-columns: minmax(0, 1fr); }
}

.gl-wrap { position: relative; min-height: 0; }
.gl-wrap canvas { position: absolute; inset: 0; }
.gl-labels span { position: absolute; left: 0; top: 0; margin: -22px 0 0 -4px; font: 500 11px/1 var(--f-mono); font-stretch: 87.5%; letter-spacing: 0.06em; text-transform: uppercase; color: var(--fg-3); white-space: nowrap; pointer-events: none; transition: color 300ms; will-change: transform; }
.gl-labels span.on { color: var(--fg); }
.big-num span output { font: inherit; color: var(--fg-2); }

.more-link { margin-top: var(--s-7); }
.pipe-track::after { content: ""; position: absolute; top: 20px; left: 0; width: 7px; height: 7px; border-radius: 50%; background: var(--fg); box-shadow: 0 0 0 4px rgb(238 236 228 / 0.12); opacity: 0; }
/* one pass when the track scrolls in: the signal reaches station k at 0.2s + k * 0.6s (3s across five stations) */
.pipe-track.run::after { animation: pipe 3s linear 0.2s 1 both; }
@keyframes pipe { 0% { left: 0; opacity: 0; background: var(--fg); } 4% { opacity: 1; } 38% { background: var(--fg); } 40%, 60% { background: var(--signal); } 62% { background: var(--fg); } 96% { opacity: 1; } 100% { left: calc(100% - 7px); opacity: 0; } }
.pipe-track.run .station .node { animation: pass 700ms var(--ease-out) calc(0.2s + var(--k, 0) * 0.6s) 1 both; }
.pipe-track.run .station.hot .node { animation-name: pass-hot; }
.pipe-track .station:nth-child(2) { --k: 1; } .pipe-track .station:nth-child(3) { --k: 2; } .pipe-track .station:nth-child(4) { --k: 3; } .pipe-track .station:nth-child(5) { --k: 4; }
@keyframes pass { 35% { background: var(--ink-3); } }
@keyframes pass-hot { 35% { background: rgb(255 194 26 / 0.28); } }
@media (max-width: 980px) { .pipe-track::after { display: none; } }
.jev > h3 { grid-row: span 3; } .jev > p { grid-column: 2; margin: 0; } .jev > p + p { margin-top: var(--s-3); } @media (max-width: 760px) { .jev > p { grid-column: 1; } }

/* ── v2: stacks, copy-for-agent, skills, graph, reveal, smooth states ── */
.stack-line { margin-top: var(--s-4); color: var(--fg-3); font: 400 13px/1.6 var(--f-mono); font-stretch: 87.5%; max-width: 60ch; }
.stack-grid { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); margin-top: var(--s-8); border: 1px solid var(--rule-3); border-radius: var(--r-1); }
.stack-grid > div { padding: var(--s-6); border-left: 1px solid var(--rule-2); }
.stack-grid > div:first-child { border-left: 0; }
.stack-grid h3 { font-family: var(--f-body); font-size: 17px; font-weight: 600; letter-spacing: 0; }
.stack-grid p { color: var(--fg-2); font-size: 15px; margin-top: var(--s-2); }
.stack-grid .k { display: block; font: 500 11px/1 var(--f-mono); font-stretch: 87.5%; letter-spacing: 0.08em; text-transform: uppercase; color: var(--fg-3); margin-bottom: var(--s-3); }
.stack-note { margin-top: var(--s-4); color: var(--fg-3); font-size: 14px; }
@media (max-width: 980px) { .stack-grid { grid-template-columns: minmax(0, 1fr) minmax(0, 1fr); } .stack-grid > div:nth-child(3) { border-left: 0; } .stack-grid > div:nth-child(n+3) { border-top: 1px solid var(--rule-2); } }
@media (max-width: 620px) { .stack-grid { grid-template-columns: minmax(0, 1fr); } .stack-grid > div { border-left: 0; border-top: 1px solid var(--rule-2); } .stack-grid > div:first-child { border-top: 0; } }

/* copy for your agent: amber is the one action here */
.agent-wrap { display: grid; grid-template-columns: minmax(0, 0.8fr) minmax(0, 1.4fr); gap: clamp(28px, 5vw, 72px); margin-top: var(--s-7); align-items: start; }
.agent-wrap ol { margin: 0; padding: 0; list-style: none; display: grid; gap: var(--s-4); counter-reset: a; }
.agent-wrap li { counter-increment: a; padding-left: 36px; position: relative; color: var(--fg-2); font-size: 15px; }
.agent-wrap li::before { content: counter(a); position: absolute; left: 0; top: 1px; width: 22px; height: 22px; display: grid; place-items: center; border: 1px solid var(--rule-3); border-radius: 50%; font: 500 11px/1 var(--f-mono); color: var(--fg-2); }
.agent-prompt pre { margin: 0; padding: 18px 16px; white-space: pre-wrap; overflow-wrap: anywhere; font: 400 13px/1.7 var(--f-mono); font-stretch: 87.5%; color: var(--fg); max-height: 26rem; overflow: auto; }
.copy-amber { width: auto; min-width: 86px; padding: 0 12px; gap: 8px; display: inline-flex; align-items: center; justify-content: center; }
.copy-amber .copy-t { font: 600 12px/1 var(--f-mono); }
.copy-amber[data-copied] .copy-t { font-size: 0; }
.copy-amber[data-copied] .copy-t::after { content: "Copied"; font-size: 12px; }
@media (max-width: 980px) { .agent-wrap { grid-template-columns: minmax(0, 1fr); } }

/* skills page */
.sk-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: var(--s-4); margin-top: var(--s-7); }
.sk-card { border: 1px solid var(--rule-2); border-radius: var(--r-2); background: var(--ink-1); padding: var(--s-5) var(--s-6); transition: border-color 200ms var(--ease-out), transform 200ms var(--ease-out); scroll-margin-top: 90px; }
.sk-card:hover, .sk-card:target { border-color: var(--rule-3); }
.sk-card:target { outline: 1px solid var(--signal); outline-offset: 2px; }
.sk-card header { display: flex; justify-content: space-between; align-items: baseline; gap: var(--s-3); }
.sk-card h3 { font: 600 19px/1.3 var(--f-mono); font-stretch: 87.5%; letter-spacing: 0; overflow-wrap: anywhere; }
.sk-kind { font: 500 11px/1 var(--f-mono); letter-spacing: 0.08em; text-transform: uppercase; color: var(--fg-3); white-space: nowrap; }
.sk-card dl { margin: var(--s-4) 0 0; display: grid; grid-template-columns: 8.5rem minmax(0, 1fr); gap: 8px var(--s-4); font-size: 15px; }
.sk-card dt { color: var(--fg-3); font: 500 11px/1.9 var(--f-mono); letter-spacing: 0.08em; text-transform: uppercase; }
.sk-card dd { margin: 0; color: var(--fg-2); overflow-wrap: anywhere; }
.sk-jev { margin: var(--s-4) 0 0; padding-top: var(--s-3); border-top: 1px solid var(--rule); font-size: 14px; color: var(--fg-3); }
.sk-jev.yes { color: var(--fg-2); }
.sk-jev b { color: var(--fg); font-weight: 600; }
@media (max-width: 980px) { .sk-grid { grid-template-columns: minmax(0, 1fr); } }
@media (max-width: 560px) { .sk-card dl { grid-template-columns: minmax(0, 1fr); gap: 2px; } .sk-card dd { margin-bottom: 8px; } }

/* graph (landing): kind colours come from the validated chart palette on ink-1 */
.graph-fig { margin: var(--s-7) 0 0; }
.gr-panel { border: 1px solid var(--rule-2); border-radius: var(--r-2); background: #191916; overflow: hidden; }
.gr-panel header { display: flex; justify-content: space-between; align-items: center; gap: var(--s-4); flex-wrap: wrap; padding: 12px 16px; border-bottom: 1px solid var(--rule-2); font: 400 12px/1.3 var(--f-mono); color: var(--fg-3); }
.gr-legend { display: flex; gap: var(--s-4); flex-wrap: wrap; }
.gr-legend span { display: inline-flex; align-items: center; gap: 6px; }
.gr-legend i { width: 10px; height: 10px; border-radius: 2px; background: var(--c); }
.gr-body { display: grid; grid-template-columns: minmax(0, 1fr) 17rem; }
.gr-scroll { overflow-x: auto; min-width: 0; }
#graph-host { min-width: 760px; padding: 8px 4px; }
.gr-svg { width: 100%; height: auto; display: block; }
.gr-e { fill: none; stroke: var(--rule-3); stroke-width: 1.2; transition: stroke 200ms, opacity 200ms; }
.gr-e.hot { stroke: rgb(255 194 26 / 0.7); }
.gr-e.on { stroke: var(--fg); stroke-width: 1.8; }
.gr-n { cursor: pointer; --c: var(--fg-3); transition: opacity 220ms var(--ease-out); outline: none; }
.gr-n rect { fill: #191916; stroke: var(--c); stroke-width: 1.2; transition: fill 200ms, stroke-width 200ms; }
.gr-n text { fill: var(--fg); font: 400 10.5px var(--f-mono); font-stretch: 87.5%; pointer-events: none; }
.gr-n.nav { --c: #3987e5; } .gr-n.ui { --c: #9085e9; } .gr-n.data { --c: #199e70; } .gr-n.srv { --c: #d55181; } .gr-n.ev { --c: var(--fg-3); }
.gr-n.find { --c: var(--signal); } .gr-n.find rect { fill: var(--signal-wash); }
.gr-n:hover rect, .gr-n:focus rect, .gr-n.on rect, .gr-n.lit rect { stroke-width: 2.2; fill: rgb(238 236 228 / 0.08); }
.gr-n:focus-visible rect, .gr-n[aria-pressed="true"] rect { stroke: var(--fg); }
.gr-n[aria-pressed="true"] rect { stroke-width: 2.6; }
.gr-svg.has-hi .gr-n:not(.on) { opacity: 0.32; }
.gr-svg.has-hi .gr-e:not(.on) { opacity: 0.25; }
.gr-pulse { fill: var(--fg); opacity: 0; filter: drop-shadow(0 0 4px rgb(238 236 228 / 0.7)); }
.gr-card { border-left: 1px solid var(--rule-2); padding: var(--s-5); font-size: 14px; min-height: 100%; }
.gr-card > * { animation: fadein 160ms var(--ease-out); }
.gr-card h3 { font: 600 15px/1.35 var(--f-mono); font-stretch: 87.5%; letter-spacing: 0; overflow-wrap: anywhere; }
.gr-kind { display: block; font: 500 10.5px/1 var(--f-mono); letter-spacing: 0.08em; text-transform: uppercase; margin-bottom: 8px; color: var(--c, var(--fg-3)); }
.gr-kind.nav { --c: #3987e5; } .gr-kind.ui { --c: #9085e9; } .gr-kind.data { --c: #199e70; } .gr-kind.srv { --c: #d55181; } .gr-kind.find { --c: var(--signal); }
.gr-card dl { margin: var(--s-3) 0 0; display: grid; grid-template-columns: auto minmax(0, 1fr); gap: 4px 12px; }
.gr-card dt { color: var(--fg-3); font: 400 11px/1.7 var(--f-mono); } .gr-card dd { margin: 0; color: var(--fg-2); font: 400 12px/1.6 var(--f-mono); overflow-wrap: anywhere; }
.gr-card ul { list-style: none; padding: 0; margin: var(--s-3) 0 0; border-top: 1px solid var(--rule); }
.gr-card li { padding: 6px 0; border-bottom: 1px solid var(--rule); color: var(--fg-2); font-size: 13px; }
.gr-card .gr-rel { font: 500 10.5px var(--f-mono); color: var(--fg-3); letter-spacing: 0.04em; }
.graph-fig figcaption { margin-top: 12px; font-size: 13px; color: var(--fg-3); display: flex; gap: 8px 20px; flex-wrap: wrap; }
@media (max-width: 860px) { .gr-body { grid-template-columns: minmax(0, 1fr); } .gr-card { border-left: 0; border-top: 1px solid var(--rule-2); } }

/* smooth states */
.session [role="tab"], .stages a, .foot-links a, .toc a, .btn, .copy { transition: color 180ms var(--ease-out), background-color 180ms var(--ease-out), border-color 180ms var(--ease-out), transform 180ms var(--ease-out); }
.station .node { transition: transform 240ms var(--ease-out), border-color 240ms var(--ease-out); }
.station:hover .node { transform: translateY(-2px); }
.session-panels [role="tabpanel"]:not([hidden]) { animation: tabin 260ms var(--ease-out); }
@keyframes tabin { from { opacity: 0; transform: translateY(6px); } to { opacity: 1; transform: none; } }
@keyframes fadein { from { opacity: 0; } }
@media (max-width: 760px) { .nav.open .nav-links { animation: tabin 200ms var(--ease-out); } }
/* reduced motion: no travel, no draw, no sweep. State changes keep a short fade; copy and selection still confirm. */
@media (prefers-reduced-motion: reduce) {
  .session-panels [role="tabpanel"]:not([hidden]) { animation: none; }
  .install[data-moved] .install-cmd:not([hidden]), .nav.open .nav-links { animation: fadein 120ms linear; }
  .install [role="tab"]::after { transition: none; }
  .nav-links a { transition: color 180ms; }
  .install:target { animation: none; }
  .copy[data-copied] .ok { animation: none; }
  .gr-card > * { animation: none; }
  .station:hover .node { transform: none; }
  .redline-fig.in .lead, .redline-fig.in .bubble, .redline-fig.in .bubble-t, .redline-fig.in .mark { animation: none; }
  .pipe-track::after, .pipe-track.run .station .node { animation: none !important; }
}