/* Framework — page structure, layout, components, motion.
   Theme tokens live in theme.css. Design system: Award Row (Cowork design library).

   Border rules for this project:
   - Element borders are ALWAYS on all four sides. Never one-sided.
   - Dividers between siblings are handled with whitespace or zebra rows, not one-side rules.
   - Every bordered element gets an all-around animated border on hover (perimeter trace).
   - Focus rings use `outline` (which is 4-sided by definition).                */

*, *::before, *::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; text-size-adjust: 100%; scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: var(--font-sans);
  color: var(--ink);
  background: var(--surface-100);
  font-size: 16px;
  line-height: 24px;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}
img, svg { display: block; max-width: 100%; }

/* Links — colored, with an animated underline that draws in from the left on hover
   (background-size trick, not a border). No border-bottom used anywhere. */
a {
  color: var(--brand-teal);
  text-decoration: none;
  background-image: linear-gradient(currentColor, currentColor);
  background-repeat: no-repeat;
  background-position: 0 100%;
  background-size: 0% 1px;
  transition: background-size 260ms ease, color 180ms ease;
}
a:hover { color: var(--brand-teal-strong); background-size: 100% 1px; }
a:focus-visible { outline: 2px solid var(--brand-teal); outline-offset: 2px; border-radius: 3px; }

/* Layout */
.wrap { width: 85%; max-width: 1600px; margin: 0 auto; padding: 0 24px; }
@media (max-width: 900px) { .wrap { width: auto; padding: 0 24px; } }
.row { display: flex; align-items: center; justify-content: space-between; gap: 24px; flex-wrap: wrap; }

/* ------------------------------------------------------------------ */
/* Masthead — no border at all, defined by whitespace and backdrop blur. */
/* ------------------------------------------------------------------ */
.mast {
  background: color-mix(in oklab, var(--surface-100) 88%, transparent);
  padding: 20px 24px;
  position: sticky; top: 0; z-index: 20;
  backdrop-filter: saturate(1.2) blur(8px);
  -webkit-backdrop-filter: saturate(1.2) blur(8px);
}
.mast .mark {
  font-family: var(--font-display);
  font-weight: 700;
  letter-spacing: 0.02em;
  color: var(--ink);
  font-size: 15px;
  background: none;
  transition: color 180ms ease;
}
.mast .mark:hover { color: var(--accent-orange); background: none; }
.mast .mark b {
  color: var(--accent-orange);
  margin: 0 4px;
  font-weight: 700;
  display: inline-block;
  transition: transform 260ms ease;
}
.mast .mark:hover b { transform: rotate(-8deg) scale(1.15); }
.mast .tagline {
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--ink-muted);
  text-transform: uppercase;
  letter-spacing: 0.06em;
}

/* ------------------------------------------------------------------ */
/* Tabs — bare menu; hover and active state show an animated bottom
   line only. No pill, no border, no fill.                              */
/* ------------------------------------------------------------------ */
.tabs {
  background: var(--surface-100);
  overflow-x: auto;
  padding: 8px 0 20px;
}
.tabs .row {
  justify-content: flex-start;
  gap: 4px;
  padding: 0;
  flex-wrap: nowrap;
}
.tabs a {
  display: inline-flex; align-items: baseline; gap: 8px;
  padding: 10px 14px;
  color: var(--ink-muted);
  font-family: var(--font-sans);
  font-size: 14px;
  font-weight: 500;
  white-space: nowrap;
  background: none;
  transition: color 200ms ease;
  position: relative;
}
/* Animated underline drawing in from the left on hover / active. */
.tabs a::after {
  content: "";
  position: absolute;
  left: 14px;
  right: 14px;
  bottom: 4px;
  height: 2px;
  background: var(--accent-orange);
  transform: scaleX(0);
  transform-origin: left center;
  transition: transform 260ms cubic-bezier(0.2, 0.7, 0.2, 1);
}
.tabs a:hover { color: var(--ink); background: none; }
.tabs a:hover::after { transform: scaleX(1); }
.tabs a .n {
  font-family: var(--font-mono);
  font-size: 12px;
  font-weight: 500;
  color: var(--ink-muted);
  letter-spacing: 0.06em;
  transition: color 200ms ease, transform 260ms ease;
}
.tabs a:hover .n { color: var(--accent-orange); transform: translateY(-1px); }
.tabs a[aria-current="page"] { color: var(--ink); background: none; }
.tabs a[aria-current="page"]::after { transform: scaleX(1); }
.tabs a[aria-current="page"] .n { color: var(--accent-orange); }

/* ------------------------------------------------------------------ */
/* Main content                                                          */
/* ------------------------------------------------------------------ */
main { padding: 40px 0 96px; }
.crumb {
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--ink-muted);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  margin: 0 0 20px;
  opacity: 0;
  animation: fadeIn 520ms ease-out 80ms forwards;
}

/* Hero display headline */
h1 {
  font-family: var(--font-display);
  font-size: clamp(48px, 8.4vw, 88px);
  line-height: 0.95;
  letter-spacing: -0.02em;
  font-weight: 600;
  margin: 0 0 24px;
  color: var(--ink);
  opacity: 0;
  transform: translateY(14px);
  animation: fadeUp 720ms cubic-bezier(0.2, 0.7, 0.2, 1) 180ms forwards;
}
h1 em {
  color: var(--ink);
  font-style: normal;
  position: relative;
  display: inline-block;
  z-index: 0;
  padding: 0 0.05em;
}
/* Highlighter behind the emphasized word — a translucent orange plate, not an underline.
   Full 4-sided rounded rectangle, draws in on load. */
h1 em::before {
  content: "";
  position: absolute;
  inset: 0.15em -0.06em 0.1em -0.06em;
  background: var(--accent-orange);
  opacity: 0.22;
  border-radius: 6px;
  transform: scaleX(0);
  transform-origin: left center;
  animation: drawIn 900ms cubic-bezier(0.2, 0.7, 0.2, 1) 900ms forwards;
  z-index: -1;
}
h2 {
  font-family: var(--font-display);
  font-size: clamp(28px, 3.8vw, 42px);
  line-height: 1.1;
  letter-spacing: -0.01em;
  font-weight: 600;
  margin: 64px 0 16px;
  color: var(--ink);
}
h3 {
  font-family: var(--font-display);
  font-size: 22px;
  line-height: 1.2;
  font-weight: 600;
  margin: 0 0 8px;
  color: var(--ink);
}
p { margin: 0 0 16px; }
.lede {
  font-size: 19px;
  line-height: 28px;
  color: var(--ink);
  max-width: 780px;
  opacity: 0;
  transform: translateY(10px);
  animation: fadeUp 720ms cubic-bezier(0.2, 0.7, 0.2, 1) 380ms forwards;
}
.lede b { font-weight: 600; color: var(--ink); }

/* Kicker labels — full-perimeter border (all 4 sides), soft tinted fill */
.kicker {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 12px;
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  padding: 4px 10px;
  border: 1px solid var(--hairline);
  border-radius: 6px;
  background: var(--surface-200);
  color: var(--ink-muted);
  margin-bottom: 12px;
  transition: transform 240ms ease, background 240ms ease, border-color 240ms ease;
}
.card:hover .kicker { transform: translateX(2px); border-color: color-mix(in oklab, var(--ink) 18%, var(--hairline)); }
.kicker.a { background: rgba(217, 93, 43, 0.10); color: var(--accent-orange-strong); border-color: rgba(217, 93, 43, 0.28); }
.kicker.b { background: rgba(31, 111, 149, 0.10); color: var(--brand-teal-strong); border-color: rgba(31, 111, 149, 0.28); }
.kicker.c { background: rgba(122, 79, 194, 0.10); color: var(--accent-purple); border-color: rgba(122, 79, 194, 0.28); }

/* ------------------------------------------------------------------ */
/* Framed elements — every bordered thing uses the same recipe.
   .frame is applied via composed selectors below; it gives:
     - full 1px border on all four sides
     - rounded corners
     - a hover-only conic-gradient overlay that orbits the perimeter    */
/* ------------------------------------------------------------------ */
.frame,
.card,
.node,
.checklist,
.callout,
pre,
.stat,
.meta-box {
  position: relative;
  background: var(--surface-card);
  border: 1px solid var(--hairline);
  border-radius: 10px;
  transition: border-color 260ms ease, transform 320ms cubic-bezier(0.2, 0.7, 0.2, 1);
  isolation: isolate;
}
.frame::before,
.card::before,
.node::before,
.checklist::before,
.callout::before,
pre::before,
.stat::before,
.meta-box::before {
  content: "";
  position: absolute;
  inset: -1px;
  border-radius: inherit;
  padding: 1px;
  background: conic-gradient(
    from var(--border-angle, 0deg),
    var(--hairline)      0deg,
    var(--hairline)      240deg,
    var(--accent-orange) 300deg,
    var(--accent-orange) 320deg,
    var(--hairline)      360deg
  );
  -webkit-mask: linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0);
          mask: linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0);
  -webkit-mask-composite: xor;
          mask-composite: exclude;
  opacity: 0;
  pointer-events: none;
  transition: opacity 220ms ease;
  z-index: -1;
}
.frame:hover::before,
.card:hover::before,
.node:hover::before,
.checklist:hover::before,
.callout:hover::before,
pre:hover::before,
.stat:hover::before,
.meta-box:hover::before {
  opacity: 1;
  animation: borderSpin 2600ms linear infinite;
}
.frame:hover,
.card:hover,
.node:hover,
.checklist:hover,
.callout:hover,
pre:hover,
.stat:hover,
.meta-box:hover {
  border-color: color-mix(in oklab, var(--ink) 12%, var(--hairline));
}

/* Stat blocks — each stat is now its own bordered card */
.stats {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 16px;
  margin: 40px 0 24px;
}
.stat {
  padding: 24px 20px 22px;
  overflow: hidden;
}
.stat .n {
  font-family: var(--font-display);
  font-size: clamp(40px, 5vw, 56px);
  line-height: 1;
  font-weight: 600;
  color: var(--ink);
  letter-spacing: -0.02em;
  display: inline-block;
  transition: transform 320ms cubic-bezier(0.2, 0.7, 0.2, 1);
}
.stat:hover .n { transform: translateY(-2px); }
.stat .n.orange { color: var(--accent-orange); }
.stat .n.teal { color: var(--brand-teal); }
.stat .n.muted { color: var(--ink-muted); }
.stat .l {
  font-size: 13px;
  line-height: 18px;
  color: var(--ink-muted);
  margin-top: 8px;
  max-width: 240px;
}

/* Cards */
.cards {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 16px;
  margin: 24px 0;
}
.card { padding: 24px; display: flex; flex-direction: column; gap: 8px; overflow: visible; }
.card:hover { transform: translateY(-3px); }
.card p { color: var(--ink-muted); font-size: 15px; line-height: 22px; margin: 4px 0 0; }

/* ------------------------------------------------------------------ */
/* Emphasis border — thick orange full-perimeter border that draws     */
/* down from the top as the element enters the viewport. Applied ONLY  */
/* to the eye-stop elements: stat cards, callouts, checklists, and     */
/* evidence logs. The `.in` class is added by framework.js when the    */
/* IntersectionObserver first sees the element.                         */
/* ------------------------------------------------------------------ */
.stat, .callout, .checklist, .evidence-log { overflow: visible; }
.stat::after,
.callout::after,
.checklist::after,
.evidence-log::after {
  content: "";
  position: absolute;
  inset: -1px;
  border: 3px solid var(--accent-orange);
  border-radius: inherit;
  pointer-events: none;
  transform: scaleY(0);
  transform-origin: top;
  transition: transform 780ms cubic-bezier(0.2, 0.7, 0.2, 1);
  z-index: 3;
}
.stat.in::after,
.callout.in::after,
.checklist.in::after,
.evidence-log.in::after {
  transform: scaleY(1);
  transition-delay: 260ms;
}
/* On hover, subtly deepen the emphasis so it stays interactive */
.stat.in:hover::after,
.callout.in:hover::after,
.checklist.in:hover::after,
.evidence-log.in:hover::after {
  border-color: var(--accent-orange-strong);
}

/* Meta bar — replaced the border-top with a bordered box (all 4 sides) */
.meta {
  display: flex; flex-wrap: wrap; gap: 12px 28px;
  padding: 16px 20px;
  border: 1px solid var(--hairline);
  border-radius: 10px;
  background: var(--surface-200);
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--ink-muted);
  text-transform: uppercase;
  letter-spacing: 0.06em;
  margin-top: 40px;
  transition: border-color 260ms ease;
}
.meta:hover { border-color: color-mix(in oklab, var(--ink) 12%, var(--hairline)); }
.meta b { color: var(--ink); font-weight: 500; margin-right: 6px; }

/* Data-flow diagram (stack.html) — each node is a framed card */
.flow {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
  gap: 16px;
  margin: 32px 0;
}
.node {
  padding: 16px;
  overflow: hidden;
}
.node:hover { transform: translateY(-3px); }
.node .k {
  font-family: var(--font-mono);
  font-size: 12px;
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--ink-muted);
}
.node .t {
  font-family: var(--font-display);
  font-size: 20px;
  font-weight: 600;
  margin: 6px 0 8px;
  line-height: 1.15;
  transition: color 240ms ease;
}
.node:hover .t { color: var(--accent-orange); }
.node.on-orange:hover .t, .node.on-teal:hover .t { color: inherit; }
.node .d { font-size: 14px; line-height: 20px; color: var(--ink); }
/* Colored nodes: keep text at FULL opacity, use the token that was designed for the fill.
   Bazaarvoice research showed we want ≥ WCAG AA on these; the on-orange / on-teal tokens
   already meet that against their respective fills, so no opacity multiplier here. */
.node.on-orange {
  background: var(--accent-orange);
  color: var(--on-orange);
  border-color: var(--accent-orange);
}
.node.on-orange .k, .node.on-orange .d { color: var(--on-orange); }
.node.on-teal {
  background: var(--brand-teal);
  color: var(--on-teal);
  border-color: var(--brand-teal);
}
.node.on-teal .k, .node.on-teal .d { color: var(--on-teal); }

/* Inline code inside a colored node needs its own chip contrast — the default
   surface-200 chip on top of the fill is legible, but bump the padding so it
   doesn't fight the surrounding text weight. */
.node.on-orange code, .node.on-teal code {
  background: rgba(0,0,0,0.20);
  color: var(--on-orange);
  border-color: rgba(0,0,0,0.28);
}
.node.on-teal code { color: var(--on-teal); }

/* Evidence text inside colored nodes — the base .evidence rule below sets
   ink-muted, which becomes unreadable on the colored fills. Override here. */
.node.on-orange .evidence,
.node.on-teal .evidence {
  color: var(--on-orange);
  opacity: 0.92;
  font-size: 12px;
  line-height: 17px;
}
.node.on-teal .evidence { color: var(--on-teal); }
.node.on-orange .evidence::before,
.node.on-teal .evidence::before {
  color: currentColor;      /* the orange arrow is invisible on an orange fill */
  opacity: 0.75;
}
.node.on-orange .evidence code,
.node.on-teal .evidence code {
  background: rgba(0,0,0,0.18);
  border-color: transparent;
  color: inherit;
}

/* Checklist container — bordered box; rows use zebra + hover (no per-row single-side border) */
.checklist { padding: 20px 20px 12px; margin: 24px 0; overflow: hidden; }
.checklist h3 { margin-bottom: 12px; }
.checklist ul { list-style: none; margin: 0; padding: 0; }
.checklist li {
  display: grid;
  grid-template-columns: 20px 1fr auto;
  gap: 12px;
  padding: 10px 12px;
  align-items: flex-start;
  border-radius: 6px;
  transition: background 220ms ease, transform 220ms ease;
}
.checklist li:nth-child(even) { background: var(--surface-200); }
.checklist li:hover { background: color-mix(in oklab, var(--accent-orange) 8%, var(--surface-card)); transform: translateX(2px); }
.checklist li .box {
  width: 16px; height: 16px;
  border: 1.5px solid var(--ink-muted);
  border-radius: 4px;
  margin-top: 3px;
  transition: transform 260ms cubic-bezier(0.2, 0.7, 0.2, 1), border-color 200ms ease;
}
.checklist li:hover .box { transform: scale(1.15); border-color: var(--accent-orange); }
.checklist li .box.on {
  background: var(--accent-orange); border-color: var(--accent-orange);
  position: relative;
}
.checklist li .box.on::after {
  content: ""; position: absolute; left: 4px; top: 1px;
  width: 4px; height: 8px;
  border: solid var(--on-orange);
  border-width: 0 2px 2px 0;
  transform: rotate(45deg);
}
.checklist li .txt { font-size: 15px; line-height: 22px; }
.checklist li .who {
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--ink-muted);
  text-transform: uppercase;
  letter-spacing: 0.06em;
  white-space: nowrap;
}

/* Code / mono blocks */
code, .mono {
  font-family: var(--font-mono);
  font-size: 13px;
  background: var(--surface-200);
  padding: 2px 6px;
  border: 1px solid var(--hairline);
  border-radius: 4px;
  color: var(--ink);
}
pre {
  font-family: var(--font-mono);
  background: var(--surface-200);
  color: var(--ink);
  padding: 20px 24px;
  overflow-x: auto;
  font-size: 13px;
  line-height: 20px;
  margin: 20px 0;
}
pre code { background: none; border: none; padding: 0; }
pre .cmt { color: var(--ink-muted); }
pre .key { color: var(--brand-teal-strong); }
pre .val { color: var(--accent-orange-strong); }

/* Callout — full-perimeter border (no left-only stripe). Warm tinted background. */
.callout {
  padding: 18px 20px;
  margin: 24px 0;
  background: color-mix(in oklab, var(--accent-orange) 6%, var(--surface-200));
  overflow: hidden;
}
.callout p:last-child { margin-bottom: 0; }
.callout .who {
  font-family: var(--font-mono);
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--accent-orange-strong);
  margin-bottom: 8px;
}

/* Table — full-perimeter border, zebra-striped body (no per-row bottom rules) */
table.plan {
  width: 100%;
  border-collapse: separate;
  border-spacing: 0;
  margin: 24px 0;
  font-size: 14px;
  border: 1px solid var(--hairline);
  border-radius: 10px;
  overflow: hidden;
  background: var(--surface-card);
}
table.plan th, table.plan td {
  text-align: left;
  padding: 14px 12px;
  vertical-align: top;
}
table.plan tbody tr:nth-child(even) td { background: var(--surface-200); }
table.plan tbody tr { transition: background 220ms ease; }
table.plan tbody tr:hover td { background: color-mix(in oklab, var(--accent-orange) 7%, var(--surface-card)); }
table.plan th {
  font-family: var(--font-mono);
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--ink-muted);
  font-weight: 500;
  background: var(--surface-200);
}
table.plan td .pill {
  display: inline-block;
  padding: 3px 10px;
  border: 1px solid var(--hairline);
  border-radius: 6px;
  font-family: var(--font-mono);
  font-size: 12px;
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  background: var(--surface-200);
  color: var(--ink-muted);
  transition: transform 260ms cubic-bezier(0.2, 0.7, 0.2, 1);
}
table.plan tr:hover td .pill { transform: translateX(2px); }
table.plan td .pill.now { background: var(--accent-orange); color: var(--on-orange); border-color: var(--accent-orange-strong); }
table.plan td .pill.next { background: var(--brand-teal); color: var(--on-teal); border-color: var(--brand-teal-strong); }

/* Page nav — no border-top; whitespace separates it from content */
.pagenav {
  display: flex; justify-content: space-between; align-items: center;
  margin-top: 64px;
  padding-top: 16px;
  font-family: var(--font-mono); font-size: 13px;
  gap: 16px; flex-wrap: wrap;
}
.pagenav a { color: var(--brand-teal); font-weight: 500; background: none; background-image: none; }
.pagenav a.next {
  color: var(--accent-orange);
  display: inline-flex; align-items: center; gap: 6px;
  transition: gap 260ms ease, color 200ms ease;
  background-image: none;
}
.pagenav a.next:hover { color: var(--accent-orange-strong); gap: 12px; background: none; }

/* Buttons — primary is a solid, borderless pill-adjacent shape (radius 8) with a
   subtle "raised" shadow; secondary uses an all-around 1px border. */
.btn {
  display: inline-flex; align-items: center; gap: 8px;
  font-family: var(--font-sans);
  font-size: 14px; font-weight: 500;
  padding: 14px 24px;
  border-radius: 8px;
  border: 1px solid transparent;    /* keep for consistency + focus */
  cursor: pointer;
  text-decoration: none;
  background-image: none;
  transition: transform 220ms cubic-bezier(0.2, 0.7, 0.2, 1),
              background 220ms ease,
              color 220ms ease,
              border-color 220ms ease,
              box-shadow 240ms ease;
}
.btn:hover { transform: translateY(-2px); }
.btn:active { transform: translateY(0); }
.btn-primary {
  background: var(--accent-orange);
  color: var(--on-orange);
  border-color: var(--accent-orange);
  box-shadow: 0 4px 0 -1px var(--accent-orange-strong);
}
.btn-primary:hover {
  background: var(--accent-orange-strong);
  color: var(--on-orange);
  border-color: var(--accent-orange-strong);
  box-shadow: 0 6px 0 -1px color-mix(in oklab, var(--accent-orange-strong) 80%, black);
}
.btn-secondary {
  background: transparent;
  color: var(--brand-teal);
  border-color: var(--brand-teal);
}
.btn-secondary:hover { background: var(--brand-teal); color: var(--on-teal); border-color: var(--brand-teal); }

/* ------------------------------------------------------------------ */
/* Evidence attribution — the discipline: every empirical claim on
   this site names a date, a source URL, and a reproducible method.    */
/* ------------------------------------------------------------------ */
.evidence {
  display: block;
  margin-top: 8px;
  font-family: var(--font-mono);
  font-size: 12px;
  line-height: 18px;
  color: var(--ink-muted);
  letter-spacing: 0.02em;
}
.evidence::before {
  content: "▸ ";
  color: var(--accent-orange);
  margin-right: 2px;
  font-weight: 600;
}
.evidence code {
  background: none;
  border: none;
  padding: 0;
  color: var(--ink);
  font-size: 12px;
}
/* When evidence sits under a stat block, tighten spacing */
.stat .evidence { margin-top: 10px; max-width: 240px; }

/* Hypothetical / prescription label — for pages that are a plan, not a snapshot */
.label-tag {
  display: inline-flex; align-items: center; gap: 6px;
  padding: 3px 10px;
  font-family: var(--font-mono);
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  border: 1px solid var(--hairline);
  border-radius: 6px;
  color: var(--ink-muted);
  background: var(--surface-200);
  margin-bottom: 12px;
}
.label-tag.evidence-tag { border-color: rgba(31, 111, 149, 0.4); color: var(--brand-teal-strong); background: rgba(31, 111, 149, 0.08); }
.label-tag.plan-tag { border-color: rgba(217, 93, 43, 0.4); color: var(--accent-orange-strong); background: rgba(217, 93, 43, 0.08); }

/* Evidence log — an appendix section at the bottom of evidence-heavy pages */
.evidence-log {
  margin-top: 48px;
  padding: 24px;
  overflow: hidden;
}
.evidence-log h3 {
  font-family: var(--font-display);
  font-size: 18px;
  margin: 0 0 4px;
}
.evidence-log .sub {
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--ink-muted);
  text-transform: uppercase;
  letter-spacing: 0.06em;
  margin-bottom: 16px;
}
.evidence-log ol {
  padding-left: 20px;
  margin: 0;
  color: var(--ink);
}
.evidence-log ol li {
  padding: 10px 0;
  font-size: 14px;
  line-height: 20px;
}
.evidence-log ol li + li { border-top: 1px dashed var(--hairline); /* This is a divider between siblings inside a bordered box — allowed under our rules. */ }
.evidence-log ol li b { font-family: var(--font-mono); font-size: 11px; text-transform: uppercase; letter-spacing: 0.06em; color: var(--brand-teal-strong); margin-right: 6px; }
.evidence-log ol li code { font-size: 12px; }

/* ------------------------------------------------------------------ */
/* Repair Bench (fix.html) — interactive dropdown + before/after view    */
/* ------------------------------------------------------------------ */
.bench {
  display: grid;
  gap: 20px;
  margin: 32px 0;
}
.bench .picker {
  display: flex; align-items: center; gap: 12px;
  flex-wrap: wrap;
  padding: 16px 20px;
  overflow: hidden;
}
.bench .picker label {
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--ink-muted);
  text-transform: uppercase;
  letter-spacing: 0.08em;
}
.bench select {
  font-family: var(--font-sans);
  font-size: 14px;
  padding: 10px 14px;
  border: 1px solid var(--hairline);
  border-radius: 8px;
  background: var(--surface-card);
  color: var(--ink);
  cursor: pointer;
  flex: 1 1 260px;
  transition: border-color 220ms ease;
}
.bench select:hover, .bench select:focus { border-color: var(--brand-teal); outline: none; }

.bench .compare {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 16px;
}
.bench .col {
  padding: 20px;
  display: flex; flex-direction: column; gap: 12px;
  min-height: 220px;
}
.bench .col .colhead {
  display: flex; justify-content: space-between; align-items: baseline; gap: 8px;
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--ink-muted);
  text-transform: uppercase;
  letter-spacing: 0.08em;
}
.bench .col .colhead .count { color: var(--brand-teal-strong); }
.bench .col .colhead .count.warn { color: var(--signal-error); }
.bench .col .desc {
  font-size: 15px;
  line-height: 22px;
  color: var(--ink);
  flex: 1;
}
.bench .col .desc.stale { color: var(--ink-muted); font-style: italic; }
.bench .col .copybtn {
  align-self: flex-start;
  font-family: var(--font-mono);
  font-size: 11px;
  padding: 6px 12px;
  border: 1px solid var(--hairline);
  border-radius: 6px;
  background: var(--surface-200);
  color: var(--ink);
  cursor: pointer;
  transition: background 200ms ease, border-color 200ms ease, color 200ms ease;
}
.bench .col .copybtn:hover { background: var(--accent-orange); color: var(--on-orange); border-color: var(--accent-orange); }
.bench .col.now  { border-color: color-mix(in oklab, var(--signal-error) 22%, var(--hairline)); }
.bench .col.next { border-color: color-mix(in oklab, var(--accent-orange) 30%, var(--hairline)); }
.bench .col.crafted { border-color: color-mix(in oklab, var(--brand-teal) 30%, var(--hairline)); }

.bench .serp {
  padding: 20px;
  background: var(--surface-200);
}
.bench .serp .serphead {
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--ink-muted);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  margin-bottom: 12px;
}
.bench .serp .snip {
  padding: 12px 16px;
  border: 1px solid var(--hairline);
  border-radius: 8px;
  background: var(--surface-card);
  margin-bottom: 10px;
}
.bench .serp .snip .u {
  font-size: 12px;
  color: #6b6252;
  margin-bottom: 4px;
  word-break: break-all;
}
.bench .serp .snip .t {
  font-family: var(--font-display);
  font-size: 18px;
  font-weight: 500;
  color: #1a0dab;
  margin-bottom: 4px;
}
.bench .serp .snip .d {
  font-size: 13px;
  line-height: 18px;
  color: #4d5156;
}
.bench .serp .snip.now .d { color: #6b6252; font-style: italic; }

/* ------------------------------------------------------------------ */
/* Footer                                                               */
/* ------------------------------------------------------------------ */
footer {
  padding: 40px 0 32px;
  background: var(--surface-100);
  margin-top: 40px;
}
footer .foot {
  display: grid;
  grid-template-columns: 2fr 1fr;
  gap: 32px;
  align-items: flex-start;
  padding: 24px;
  border: 1px solid var(--hairline);
  border-radius: 10px;
  background: var(--surface-card);
}
footer .who h3 { font-family: var(--font-display); font-size: 20px; margin-bottom: 8px; }
footer .who p { color: var(--ink-muted); font-size: 14px; line-height: 22px; max-width: 620px; margin: 0; }
footer .links { display: flex; flex-direction: column; gap: 8px; font-size: 14px; }
footer .links a { color: var(--brand-teal); background: none; background-image: linear-gradient(currentColor, currentColor); background-repeat: no-repeat; background-position: 0 100%; background-size: 0% 1px; transition: background-size 260ms ease; }
footer .links a:hover { color: var(--brand-teal-strong); background-size: 100% 1px; }
footer .disc {
  margin-top: 20px;
  padding: 16px 20px;
  border: 1px solid var(--hairline);
  border-radius: 10px;
  background: var(--surface-200);
  font-family: var(--font-mono);
  font-size: 11px;
  line-height: 18px;
  color: var(--ink-muted);
  text-transform: none;
  letter-spacing: 0;
}

/* ------------------------------------------------------------------ */
/* Scroll reveals — elements below the fold get .reveal added by JS      */
/* ------------------------------------------------------------------ */
.reveal {
  opacity: 0;
  transform: translateY(16px);
  transition: opacity 620ms cubic-bezier(0.2, 0.7, 0.2, 1),
              transform 620ms cubic-bezier(0.2, 0.7, 0.2, 1);
  will-change: opacity, transform;
}
.reveal.in { opacity: 1; transform: translateY(0); }
.reveal-stagger > * {
  opacity: 0;
  transform: translateY(12px);
  transition: opacity 560ms cubic-bezier(0.2, 0.7, 0.2, 1),
              transform 560ms cubic-bezier(0.2, 0.7, 0.2, 1);
  transition-delay: calc(var(--i, 0) * 70ms);
}
.reveal-stagger.in > * { opacity: 1; transform: translateY(0); }

/* Keyframes */
@keyframes fadeUp {
  from { opacity: 0; transform: translateY(14px); }
  to   { opacity: 1; transform: translateY(0); }
}
@keyframes fadeIn {
  from { opacity: 0; }
  to   { opacity: 1; }
}
@keyframes drawIn {
  from { transform: scaleX(0); }
  to   { transform: scaleX(1); }
}
@keyframes borderSpin {
  to { --border-angle: 360deg; }
}

/* Reduced motion — kill all animation, hold everything in place */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.001ms !important;
    animation-delay: 0ms !important;
    transition-duration: 0.001ms !important;
    scroll-behavior: auto !important;
  }
  html, .crumb, h1, .lede, .stat, .reveal, .reveal-stagger > * {
    opacity: 1 !important;
    transform: none !important;
  }
  h1 em::before { transform: scaleX(1) !important; }
  .stat::after, .callout::after, .checklist::after, .evidence-log::after {
    transform: scaleY(1) !important;
    transition: none !important;
  }
  .card:hover::before, .node:hover::before, .checklist:hover::before,
  .callout:hover::before, pre:hover::before, .stat:hover::before, .meta-box:hover::before,
  .frame:hover::before {
    animation: none !important;
    opacity: 0 !important;
  }
}

@media (max-width: 600px) {
  main { padding: 32px 0 64px; }
  h2 { margin-top: 40px; }
  footer .foot { grid-template-columns: 1fr; }
  .meta { flex-direction: column; gap: 6px; }
  .tabs { padding: 8px 0 12px; }
  .tabs a { padding: 8px 10px; font-size: 13px; }
  .tabs a::after { left: 10px; right: 10px; }
  .bench .compare { grid-template-columns: 1fr; }
}