/*
  CONTEXTFOUND THEME
  Swap this block to recolor the entire site.
*/
:root {
  --paper: #f1ede4;
  --paper-raised: #f8f5ee;
  --paper-sunk: #e9e4d8;
  --ink: #17160f;
  --accent: #d4551b;
  --accent-ink: #a83f12;
  --accent-on-dark: #d86a32;
  --accent-tint: #f7e1d3;
  --steel: #1e5c68;
  --steel-tint: #dce7e8;
  --muted: #6a665c;
  --rule: #cbc5b8;
  --rule-strong: var(--ink);
  --dark: #1b1a15;
  --dark-text: #ebe6da;
  --dark-muted: #aaa497;
  --dark-rule: #3a382f;
  --focus: #1e5c68;
  --focus-on-dark: #f8f5ee;
  --sans: "Archivo", ui-sans-serif, system-ui, sans-serif;
  --serif: "Source Serif 4", Georgia, serif;
  --page: 112rem;
  --gutter: clamp(1rem, 4vw, 4rem);
  --content-page: 92rem;
  --content-gutter: clamp(1.25rem, 6vw, 5rem);
  --section-space: clamp(4.5rem, 9vw, 8.5rem);
  --header-height: 4.25rem;
  --ease: cubic-bezier(0.16, 1, 0.3, 1);
}

*,
*::before,
*::after {
  box-sizing: border-box;
}

html {
  color: var(--ink);
  background: var(--paper);
  scroll-behavior: smooth;
  scroll-padding-top: calc(var(--header-height) + 1rem);
  -webkit-text-size-adjust: 100%;
}

body {
  min-width: 20rem;
  min-height: 100%;
  margin: 0;
  overflow-x: clip;
  font-family: var(--sans);
  font-size: 1rem;
  line-height: 1.55;
  text-rendering: optimizeLegibility;
}

body,
button,
a {
  -webkit-font-smoothing: antialiased;
}

::selection {
  color: var(--paper-raised);
  background: var(--steel);
}

* {
  scrollbar-color: var(--steel) var(--paper);
  scrollbar-width: thin;
}

::-webkit-scrollbar {
  width: 0.75rem;
  height: 0.75rem;
}

::-webkit-scrollbar-track {
  background: var(--paper);
}

::-webkit-scrollbar-thumb {
  border: 0.2rem solid var(--paper);
  border-radius: 99rem;
  background: var(--steel);
}

img,
svg {
  display: block;
  max-width: 100%;
  height: auto;
}

a {
  color: inherit;
  text-underline-offset: 0.18em;
}

a:focus-visible,
button:focus-visible,
summary:focus-visible,
[tabindex]:focus-visible {
  outline: 0.2rem solid var(--focus);
  outline-offset: 0.25rem;
}

.site-header,
.band-dark,
.closing,
.offer-brief,
.nav-menu nav,
.cta-button,
.demo-chrome {
  --focus: var(--focus-on-dark);
}

#main:focus {
  outline: none;
}

h1,
h2,
h3,
p,
figure,
blockquote,
dl,
dd,
ol,
ul {
  margin: 0;
}

h1,
h2,
h3 {
  font-family: var(--serif);
  font-weight: 700;
  letter-spacing: -0.028em;
  text-wrap: balance;
}

h1 {
  font-size: clamp(2.3rem, 4.6vw, 3.9rem);
  line-height: 1.02;
}

h2 {
  font-size: clamp(2rem, 4.2vw, 3.4rem);
  line-height: 1.04;
}

h3 {
  font-size: clamp(1.25rem, 2vw, 1.6rem);
  line-height: 1.15;
  letter-spacing: -0.02em;
}

.visually-hidden {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip-path: inset(50%);
  white-space: nowrap;
  border: 0;
}

.skip-link {
  position: fixed;
  top: 0.75rem;
  left: 0.75rem;
  z-index: 100;
  padding: 0.75rem 1rem;
  color: var(--paper-raised);
  background: var(--ink);
  font-weight: 700;
  transform: translateY(-180%);
}

.skip-link:focus {
  transform: none;
}

/* ---------- header ---------- */

.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  min-height: var(--header-height);
  color: var(--dark-text);
  background: color-mix(in srgb, var(--dark) 96%, transparent);
  border-bottom: 1px solid var(--dark-rule);
  backdrop-filter: blur(0.7rem);
}

.site-header-bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: min(100%, var(--page));
  min-height: var(--header-height);
  margin-inline: auto;
  padding-inline: var(--gutter);
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 0.65rem;
  min-height: 2.75rem;
  text-decoration: none;
}

.brand-mark {
  width: 2rem;
  height: 2rem;
  flex: none;
}

.brand-mark .mark-outer {
  stroke: var(--steel);
}

.brand-mark .mark-inner {
  stroke: var(--accent);
}

.wordmark {
  color: var(--dark-text);
  font-size: 1.02rem;
  font-weight: 700;
  letter-spacing: -0.025em;
}

.wordmark span {
  color: var(--accent-on-dark);
  font-weight: 500;
}

.site-nav,
.site-header .header-cta {
  display: none;
}

.nav-menu {
  position: relative;
}

.nav-menu summary {
  min-width: 2.75rem;
  min-height: 2.75rem;
  padding-inline: 0.55rem;
  list-style: none;
  color: var(--dark-text);
  cursor: pointer;
  display: grid;
  place-items: center;
  font-size: 0.73rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.nav-menu summary::-webkit-details-marker {
  display: none;
}

.nav-menu nav {
  position: absolute;
  top: calc(100% + 0.65rem);
  right: 0;
  display: grid;
  width: min(19rem, calc(100vw - 2rem));
  padding: 0.5rem;
  background: var(--dark);
  border: 1px solid var(--dark-rule);
  box-shadow: 0 1rem 2.5rem rgb(0 0 0 / 28%);
}

.nav-menu nav a {
  min-height: 3rem;
  padding: 0.85rem;
  color: var(--dark-text);
  display: flex;
  align-items: center;
  font-size: 0.78rem;
  font-weight: 700;
  text-decoration: none;
}

.nav-menu nav a:last-child {
  color: var(--paper-raised);
  background: var(--accent-ink);
}

/* ---------- shared layout ---------- */

.site-main {
  overflow: clip;
}

.shell {
  width: min(100%, var(--content-page));
  margin-inline: auto;
  padding-inline: var(--content-gutter);
}

.band {
  border-top: 1px solid var(--rule);
}

.band-quiet {
  background: var(--paper-raised);
}

.band-dark {
  color: var(--dark-text);
  background: var(--dark);
  border-top-color: var(--dark);
}

.section {
  padding-block: var(--section-space);
}

.section-head {
  display: grid;
  gap: 1.15rem;
  max-width: 46rem;
  margin-bottom: clamp(2.25rem, 5vw, 3.75rem);
}

.section-label,
.eyebrow,
.aside-label,
.demo-flag,
.fine-print,
.chip-list li,
.reassurance li {
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.section-label {
  color: var(--accent-ink);
}

.band-dark .section-label {
  color: var(--accent-on-dark);
}

.section-lede {
  max-width: 42ch;
  color: var(--muted);
  font-size: clamp(1.05rem, 1.6vw, 1.28rem);
  line-height: 1.45;
}

.prose {
  display: grid;
  gap: 1.05rem;
  max-width: 42ch;
  font-size: clamp(1rem, 1.3vw, 1.1rem);
  color: var(--muted);
}

.prose-wide {
  max-width: 58ch;
}

.prose-lead {
  color: var(--ink);
  font-weight: 600;
}

.band-dark .prose {
  color: var(--dark-muted);
}

.band-dark .prose-lead {
  color: var(--dark-text);
}

.fine-print {
  color: var(--muted);
  letter-spacing: 0.08em;
}

/* ---------- cta ---------- */

.cta-button {
  display: inline-flex;
  align-items: center;
  justify-content: space-between;
  gap: 1.25rem;
  min-height: 3.25rem;
  padding: 0.9rem 1.15rem;
  color: var(--paper-raised);
  background: var(--accent-ink);
  border: 1px solid var(--accent-ink);
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.055em;
  line-height: 1.15;
  text-decoration: none;
  text-transform: uppercase;
  transition:
    color 0.2s ease,
    background 0.2s ease,
    border-color 0.2s ease,
    transform 0.2s var(--ease);
}

.cta-button:hover {
  color: var(--paper-raised);
  background: var(--steel);
  border-color: var(--steel);
  transform: translateY(-0.15rem);
}

.cta-button svg {
  width: 1rem;
  height: 1rem;
  flex: none;
}

.cta-large {
  min-height: 3.75rem;
  padding-inline: 1.75rem;
  font-size: 0.85rem;
}

/* ---------- hero ---------- */

.hero-scene {
  --scene-travel: 0px;
  --scene-pin-height: 0px;
  position: relative;
  min-height: calc(var(--scene-pin-height) + var(--scene-travel));
}

.hero-pin {
  position: sticky;
  top: var(--header-height);
}

.hero-scene[data-pin="off"] {
  min-height: 0;
}

.hero-scene[data-pin="off"] .hero-pin {
  position: static;
}

.hero {
  display: grid;
  gap: clamp(1.9rem, 5vw, 4rem);
  padding-block: clamp(1.9rem, 6vw, 5rem) clamp(3rem, 7vw, 6rem);
}

.hero-copy {
  display: grid;
  gap: 1.05rem;
  align-content: start;
}

.eyebrow {
  color: var(--muted);
}

.hero h1 {
  max-width: 24ch;
  font-size: clamp(2.05rem, 4.6vw, 3.9rem);
}

.hero-lede {
  max-width: 44ch;
  color: var(--muted);
  font-size: clamp(0.98rem, 1.4vw, 1.14rem);
  line-height: 1.5;
}

.hero-claim {
  max-width: 40ch;
  font-family: var(--serif);
  font-size: clamp(1.22rem, 2.1vw, 1.7rem);
  font-weight: 600;
  line-height: 1.24;
  letter-spacing: -0.02em;
}

.hero-claim strong {
  color: var(--accent-ink);
}

.hero-action {
  display: grid;
  gap: 0.8rem;
  justify-items: start;
  padding-top: 1.1rem;
  margin-top: 0.2rem;
  border-top: 1px solid var(--rule-strong);
}

.hero-action p {
  max-width: 42ch;
  color: var(--muted);
  font-size: 0.95rem;
}

.hero-action .fine-print {
  font-size: 0.7rem;
}

.hero-stage {
  align-self: center;
  min-width: 0;
}

/* spreadsheet becomes tool */

.transform {
  display: grid;
  gap: 0.85rem;
  min-width: 0;
}

.transform-frame {
  position: relative;
  aspect-ratio: 16 / 10;
  overflow: hidden;
  background: var(--steel-tint);
  border: 1px solid var(--ink);
  box-shadow:
    0 1rem 2rem rgb(23 22 15 / 10%),
    0 2.5rem 5rem rgb(23 22 15 / 12%);
}

.transform-layer {
  position: absolute;
  inset: 0;
}

.transform-layer picture {
  display: block;
  width: 100%;
  height: 100%;
}

.transform-layer img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: left top;
}

.transform-layer[data-layer="tool"] {
  opacity: 0;
  background: #fff;
  transform: translateY(4%) scale(1.015);
  transform-origin: 50% 100%;
  transition:
    opacity 0.75s var(--ease),
    transform 0.9s var(--ease);
}

.transform-layer[data-layer="tool"] img {
  object-fit: contain;
  object-position: center top;
}

.transform[data-state="tool"] .transform-layer[data-layer="tool"] {
  opacity: 1;
  transform: none;
}

.transform-caption {
  position: absolute;
  right: 0;
  bottom: 0;
  left: 0;
  z-index: 3;
  display: flex;
  align-items: center;
  min-height: 2.75rem;
  padding: 0.35rem 0.85rem;
  color: var(--paper-raised);
  background: color-mix(in srgb, var(--ink) 92%, transparent);
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

.transform-status {
  display: grid;
  flex: 1;
  min-width: 0;
}

.transform-word {
  grid-area: 1 / 1;
  align-self: center;
  opacity: 0;
  visibility: hidden;
  transform: translateY(0.5rem);
  transition:
    opacity 0.45s ease,
    transform 0.5s var(--ease),
    visibility 0.45s;
}

.transform-word[data-for="sheet"]::before,
.transform-word[data-for="tool"]::before {
  content: "01 / ";
  color: var(--accent-on-dark);
}

.transform-word[data-for="tool"]::before {
  content: "02 / ";
}

.transform[data-state="sheet"] .transform-word[data-for="sheet"],
.transform[data-state="tool"] .transform-word[data-for="tool"] {
  opacity: 1;
  visibility: visible;
  transform: none;
}

.transform figcaption {
  color: var(--muted);
  font-size: 0.78rem;
  font-weight: 600;
}

/* ---------- 01 the pattern ---------- */

.prose-columns {
  display: grid;
  gap: clamp(2rem, 4vw, 3.5rem);
}

.around-list {
  display: grid;
  align-content: start;
  gap: 0;
  padding: 0;
  list-style: none;
  border-top: 1px solid var(--rule-strong);
}

.around-list li {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: 0.85rem;
  padding-block: 0.95rem;
  border-bottom: 1px solid var(--rule);
  font-size: 0.98rem;
  font-weight: 600;
}

.around-list li::before {
  content: "";
  width: 0.4rem;
  height: 0.4rem;
  margin-top: 0.6em;
  background: var(--accent);
}

.pull-statement {
  max-width: 26ch;
  margin-top: clamp(2.5rem, 5vw, 4.5rem);
  margin-left: auto;
  padding-top: clamp(1.5rem, 3vw, 2.5rem);
  border-top: 0.2rem solid var(--rule-strong);
  font-family: var(--serif);
  font-size: clamp(1.7rem, 3.6vw, 2.9rem);
  font-weight: 600;
  line-height: 1.08;
  letter-spacing: -0.028em;
  text-wrap: balance;
}

/* ---------- 02 the answer ---------- */

.question-grid {
  display: grid;
  gap: 1px;
  padding: 0;
  margin-bottom: clamp(2.25rem, 4vw, 3.25rem);
  list-style: none;
  background: var(--rule);
  border: 1px solid var(--rule);
}

.question-grid li {
  display: grid;
  align-content: start;
  gap: 0.75rem;
  padding: clamp(1.4rem, 2.6vw, 2.1rem);
  background: var(--paper);
  font-family: var(--serif);
  font-size: clamp(1.2rem, 1.9vw, 1.5rem);
  font-weight: 600;
  line-height: 1.2;
  letter-spacing: -0.02em;
}

.question-grid li::before {
  content: "“";
  display: block;
  color: var(--accent);
  font-size: 1.9rem;
  line-height: 0.4;
}

/* ---------- 03 product example ---------- */

.figure-quote {
  max-width: 34ch;
  padding-left: clamp(1rem, 2.5vw, 1.75rem);
  margin-bottom: clamp(2rem, 4vw, 3rem);
  border-left: 0.2rem solid var(--accent);
}

.figure-quote blockquote {
  font-family: var(--serif);
  font-size: clamp(1.45rem, 3vw, 2.3rem);
  font-weight: 600;
  line-height: 1.12;
  letter-spacing: -0.025em;
}

.demo-scene {
  --scene-travel: 0px;
  --scene-pin-height: 0px;
  position: relative;
  min-height: calc(var(--scene-pin-height) + var(--scene-travel));
  margin-block: clamp(2.25rem, 4.5vw, 3.5rem);
}

.demo-pin {
  position: sticky;
  top: calc(var(--header-height) + 1.5rem);
}

.demo-scene[data-pin="off"] {
  min-height: 0;
}

.demo-scene[data-pin="off"] .demo-pin {
  position: static;
}

.demo {
  --demo-pad: clamp(0.7rem, 2vw, 1.4rem);
  background: var(--paper-raised);
  border: 1px solid var(--ink);
  box-shadow: 0 1.25rem 3.25rem rgb(23 22 15 / 10%);
}

.demo-chrome {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 0.85rem;
  padding: 0.85rem var(--demo-pad);
  color: var(--dark-text);
  background: var(--dark);
}

.demo-controls {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
}

.demo-title {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.7rem;
  font-size: 0.85rem;
  font-weight: 700;
  letter-spacing: -0.01em;
}

.demo-flag {
  padding: 0.25rem 0.45rem;
  color: var(--dark);
  background: var(--accent-on-dark);
  font-size: 0.62rem;
  letter-spacing: 0.1em;
}

.demo-switch {
  display: flex;
  gap: 0.35rem;
}

.demo-switch button {
  min-height: 2.75rem;
  padding: 0.4rem 0.75rem;
  color: var(--dark-muted);
  background: none;
  border: 1px solid var(--dark-rule);
  font-family: inherit;
  font-size: 0.68rem;
  font-weight: 700;
  letter-spacing: 0.09em;
  text-transform: uppercase;
  cursor: pointer;
  transition:
    color 0.2s ease,
    background 0.2s ease,
    border-color 0.2s ease;
}

.demo-switch button:hover {
  color: var(--dark-text);
  border-color: var(--dark-muted);
}

.demo-switch button[aria-checked="true"] {
  color: var(--dark);
  background: var(--dark-text);
  border-color: var(--dark-text);
}

.demo-summary {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(8.5rem, 1fr));
  gap: 1px;
  background: var(--rule);
  border-bottom: 1px solid var(--rule);
}

.demo-summary > div {
  display: grid;
  gap: 0.3rem;
  padding: 0.85rem var(--demo-pad);
  background: var(--paper-raised);
}

.demo-summary dt {
  color: var(--muted);
  font-size: 0.63rem;
  font-weight: 700;
  letter-spacing: 0.11em;
  text-transform: uppercase;
}

.demo-summary dd {
  font-size: 0.95rem;
  font-weight: 700;
  font-variant-numeric: tabular-nums;
}

.demo-projected {
  grid-column: 1 / -1;
}

.demo-projected dd {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 0.45rem;
}

.demo-projected b {
  color: var(--steel);
  font-size: 1.05rem;
  transition: color 0.35s ease;
}

.demo-projected span {
  color: var(--muted);
  font-size: 0.68rem;
  font-weight: 700;
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

.demo[data-state="delayed"] .demo-projected b,
.demo[data-state="delayed"] .demo-projected span {
  color: var(--accent-ink);
}

.demo-table-wrap {
  overflow-x: auto;
  padding-block: 0.5rem 0.35rem;
}

.demo-table {
  width: 100%;
  min-width: 21rem;
  border-collapse: collapse;
  table-layout: fixed;
}

.demo-table th,
.demo-table td {
  padding: 0.3rem var(--demo-pad);
  text-align: left;
  font-size: 0.78rem;
}

.demo-table thead th {
  padding-bottom: 0.7rem;
  color: var(--muted);
  font-size: 0.63rem;
  font-weight: 700;
  letter-spacing: 0.11em;
  text-transform: uppercase;
  vertical-align: bottom;
}

.demo-table thead th:first-child {
  width: 8.25rem;
}

.demo-table thead th:nth-child(2) {
  width: 2.8rem;
}

.demo-table thead th.demo-timeline {
  position: relative;
  padding-top: 3.1rem;
}

.demo-axis {
  position: relative;
  display: block;
  height: 1.1rem;
}

.demo-axis i {
  position: absolute;
  bottom: 0;
  font-style: normal;
  font-variant-numeric: tabular-nums;
}

.demo-axis i:nth-child(2),
.demo-axis i:nth-child(4) {
  display: none;
}

.demo-axis i:nth-child(1) {
  left: 0;
}

.demo-axis i:nth-child(2) {
  left: 27.7%;
}

.demo-axis i:nth-child(3) {
  left: 55.5%;
}

.demo-axis i:nth-child(4) {
  left: 83.3%;
}

.demo-marker {
  position: absolute;
  z-index: 3;
  padding: 0.2rem 0.35rem;
  font-size: 0.58rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  transform: translateX(-50%);
  transition: left 0.75s var(--ease);
  white-space: nowrap;
}

.demo-marker-promise {
  top: 0.25rem;
  left: 66.6%;
  color: var(--paper-raised);
  background: var(--ink);
}

.demo-marker-projected {
  top: 1.55rem;
  left: calc(var(--at, 10) / var(--days) * 100%);
  color: var(--paper-raised);
  background: var(--steel);
}

.demo[data-state="delayed"] .demo-marker-projected {
  background: var(--accent-ink);
  transform: translateX(-100%);
}

.demo-table tbody th {
  color: var(--ink);
  font-weight: 700;
  letter-spacing: -0.005em;
}

.op-seq {
  display: inline-block;
  min-width: 1.45rem;
  color: var(--muted);
  font-variant-numeric: tabular-nums;
  font-weight: 600;
}

.op-child {
  position: relative;
  display: block;
  padding-left: 1.45rem;
}

.op-child-head {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.15rem 0.4rem;
}

.op-child-label {
  font-style: italic;
  font-weight: 600;
}

.op-wo {
  display: inline-flex;
  align-items: center;
  gap: 0.2rem;
  min-height: 1.5rem;
  padding: 0.1rem 0.3rem;
  color: var(--steel);
  background: transparent;
  border: 1px solid transparent;
  font-family: inherit;
  font-size: 0.58rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  cursor: pointer;
}

.op-wo svg {
  width: 0.5rem;
  height: 0.5rem;
}

.op-wo:hover {
  color: var(--ink);
  border-color: var(--rule);
}

.demo[data-state="delayed"] tbody tr[data-kind="component"] .op-wo {
  color: var(--accent-ink);
}

.demo[data-state="delayed"] tbody tr[data-kind="component"] .op-wo:hover {
  color: var(--ink);
}

.op-req {
  position: absolute;
  top: 0.45em;
  left: 0.3rem;
  width: 0.48rem;
  height: 0.48rem;
  background: var(--steel);
  transform: rotate(45deg);
  transition: background 0.35s ease;
}

.op-detail {
  display: inline-flex;
  align-items: center;
  gap: 0.25rem;
  margin-top: 0.3rem;
  padding: 0.2rem 0.4rem;
  color: var(--steel);
  background: var(--paper-raised);
  border: 1px solid currentcolor;
  font-family: inherit;
  font-size: 0.6rem;
  font-weight: 700;
  letter-spacing: 0.09em;
  text-transform: uppercase;
  cursor: pointer;
}

.op-detail svg {
  width: 0.55rem;
  height: 0.55rem;
}

.op-detail[aria-expanded="true"] svg {
  transform: rotate(90deg);
}

.op-detail:hover {
  color: var(--ink);
}

.demo-table tbody tr[data-kind="component"] {
  background: var(--paper-sunk);
}

.demo[data-state="delayed"] tbody tr[data-kind="component"] .op-req,
.demo[data-state="delayed"] tbody tr[data-kind="component"] .op-detail {
  color: var(--accent-ink);
}

.demo[data-state="delayed"] tbody tr[data-kind="component"] .op-req {
  background: var(--accent);
}

.demo-detail-row td {
  padding: 0 var(--demo-pad) 0.9rem;
  background: var(--paper-sunk);
}

.demo[data-state="delayed"] .demo-detail-row td {
  background: var(--accent-tint);
}

.demo-detail {
  display: grid;
  gap: 0.7rem;
  padding: 0.85rem 1rem;
  margin-left: 1.45rem;
  background: var(--paper-raised);
  border: 1px solid var(--rule);
}

.demo-detail dl {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(7rem, 1fr));
  gap: 0.7rem 1.1rem;
}

.demo-detail dt {
  color: var(--muted);
  font-size: 0.6rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

.demo-detail dd {
  font-size: 0.8rem;
  font-weight: 700;
  font-variant-numeric: tabular-nums;
}

.demo[data-state="delayed"] .demo-detail [data-component-available],
.demo[data-state="delayed"] .demo-detail [data-component-status] {
  color: var(--accent-ink);
}

.demo-detail p {
  color: var(--muted);
  font-size: 0.78rem;
  font-weight: 600;
  line-height: 1.45;
}

.demo-table tbody td:nth-child(2) {
  color: var(--muted);
  font-weight: 600;
  font-variant-numeric: tabular-nums;
}

.demo-track {
  position: relative;
  height: 2.1rem;
}

.demo-track::before,
.demo-track::after {
  content: "";
  position: absolute;
  top: 0;
  bottom: 0;
  width: 1px;
}

.demo-track::before {
  left: 66.6%;
  background: repeating-linear-gradient(var(--ink) 0 3px, transparent 3px 6px);
}

.demo-track::after {
  left: calc(var(--at, 10) / var(--days) * 100%);
  background: var(--steel);
  transition:
    left 0.75s var(--ease),
    background 0.35s ease;
}

.demo[data-state="delayed"] .demo-track::after {
  background: var(--accent-ink);
}

.op-bar {
  --start: var(--on-start);
  --span: var(--on-span);
  position: absolute;
  top: 50%;
  left: calc(var(--start) / var(--days) * 100%);
  z-index: 2;
  width: max(0.35rem, calc(var(--span) / var(--days) * 100%));
  height: 0.85rem;
  background: var(--steel);
  transform: translateY(-50%);
  transition:
    left 0.75s var(--ease),
    width 0.75s var(--ease),
    background 0.35s ease;
}

.demo[data-state="delayed"] .op-bar {
  --start: var(--late-start);
  --span: var(--late-span);
}

.op-diamond {
  --start: var(--on-start);
  position: absolute;
  top: 50%;
  left: calc(var(--start) / var(--days) * 100%);
  z-index: 2;
  width: 0.72rem;
  height: 0.72rem;
  background: var(--steel);
  transform: translate(-50%, -50%) rotate(45deg);
  transition:
    left 0.75s var(--ease),
    background 0.35s ease,
    box-shadow 0.35s ease;
}

.demo[data-state="delayed"] .op-diamond {
  --start: var(--late-start);
  background: var(--accent);
  box-shadow: 0 0 0 0.2rem color-mix(in srgb, var(--accent) 28%, transparent);
}

.demo-table tbody tr[data-role="done"] .op-bar {
  background: color-mix(in srgb, var(--steel) 45%, var(--paper-sunk));
}

.demo-table tbody tr {
  transition: background 0.35s ease;
}

.demo[data-state="delayed"] tbody tr[data-role="cause"] {
  background: var(--accent-tint);
}

.demo[data-state="delayed"] tbody tr[data-role="cause"] .op-bar {
  background: var(--accent);
  box-shadow: 0 0 0 0.2rem color-mix(in srgb, var(--accent) 28%, transparent);
}

.demo[data-state="delayed"] tbody tr[data-role="shifts"] .op-bar {
  background: var(--accent-ink);
}

.demo-callout {
  display: grid;
  gap: 0.5rem;
  min-height: 4.5rem;
  align-content: center;
  padding: 1rem var(--demo-pad);
  background: var(--steel-tint);
  border-top: 1px solid var(--rule);
  font-size: 0.92rem;
  font-weight: 600;
  line-height: 1.45;
  transition: background 0.35s ease;
}

.demo-callout::before {
  content: "Responding to change";
  color: var(--steel);
  font-size: 0.63rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.demo[data-state="delayed"] .demo-callout {
  background: var(--accent-tint);
}

.demo[data-state="delayed"] .demo-callout::before {
  color: var(--accent-ink);
}

.aside-example {
  display: grid;
  gap: clamp(1.5rem, 3vw, 2.5rem);
  padding-top: clamp(2rem, 4vw, 3rem);
  border-top: 1px solid var(--rule-strong);
}

.aside-copy {
  display: grid;
  gap: 0.85rem;
  align-content: start;
  max-width: 44ch;
}

.aside-label {
  color: var(--accent-ink);
}

.aside-copy p:not(.aside-label) {
  color: var(--muted);
}

.aside-visual {
  padding: clamp(0.6rem, 1.4vw, 1.1rem);
  background: var(--steel-tint);
  border: 1px solid var(--ink);
}

.aside-visual img {
  width: 100%;
  background: #fff;
  box-shadow: 0 0.5rem 1.5rem rgb(30 92 104 / 14%);
}

/* ---------- 04 process ---------- */

.phase-list {
  display: grid;
  gap: 1px;
  padding: 0;
  list-style: none;
  background: var(--dark-rule);
  border: 1px solid var(--dark-rule);
}

.phase-list li {
  display: grid;
  gap: 0.7rem;
  align-content: start;
  padding: clamp(1.4rem, 2.8vw, 2.4rem);
  background: var(--dark);
}

.phase-number {
  color: var(--accent-on-dark);
  font-size: 0.72rem;
  font-weight: 700;
  font-variant-numeric: tabular-nums;
  letter-spacing: 0.12em;
}

.phase-list h3 {
  max-width: 22ch;
  color: var(--dark-text);
}

.phase-list li > p:last-child {
  max-width: 40ch;
  color: var(--dark-muted);
  font-size: 1rem;
}

/* ---------- 05 founder ---------- */

.founder {
  display: grid;
  gap: clamp(1.75rem, 4vw, 3.5rem);
  align-items: start;
}

.portrait {
  display: grid;
  gap: 0.9rem;
  width: min(100%, 19rem);
}

.portrait img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 4 / 5;
  object-fit: cover;
  object-position: 50% 18%;
  background: var(--paper-sunk);
  border: 1px solid var(--ink);
}

.portrait figcaption {
  display: grid;
  gap: 0.2rem;
  color: var(--muted);
  font-size: 0.82rem;
  font-weight: 600;
}

.portrait figcaption b {
  color: var(--ink);
  font-size: 1rem;
}

.credentials {
  display: grid;
  align-content: start;
  gap: 0;
  border-top: 1px solid var(--rule-strong);
}

.credentials > div {
  padding-block: 0.85rem;
  border-bottom: 1px solid var(--rule);
}

.credentials dt {
  margin-bottom: 0.2rem;
  color: var(--accent-ink);
  font-size: 0.62rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.credentials dd {
  font-size: 0.92rem;
  font-weight: 600;
}

/* ---------- 06 information ---------- */

.data-grid {
  display: grid;
  gap: clamp(1.75rem, 4vw, 3.5rem);
  align-items: start;
}

.chip-list {
  display: grid;
  gap: 0.5rem;
  align-content: start;
  justify-items: start;
  padding: 0;
  list-style: none;
}

.chip-list li {
  display: flex;
  align-items: center;
  gap: 0.7rem;
  padding: 0.75rem 0.9rem;
  color: var(--ink);
  background: var(--paper);
  border: 1px solid var(--rule);
  font-size: 0.7rem;
  letter-spacing: 0.09em;
}

.chip-list li::before {
  content: "";
  width: 0.4rem;
  height: 0.4rem;
  flex: none;
  background: var(--steel);
}

/* ---------- 07 offer ---------- */

.offer {
  display: grid;
  gap: clamp(1.75rem, 4vw, 3.5rem);
  align-items: start;
}

.offer-brief {
  display: grid;
  gap: 1.25rem;
  padding: clamp(1.4rem, 3vw, 2.4rem);
  color: var(--dark-text);
  background: var(--dark);
}

.offer-brief-label {
  max-width: 30ch;
  color: var(--dark-muted);
  font-size: 0.82rem;
  font-weight: 600;
  letter-spacing: 0.02em;
}

.offer-brief-label b {
  color: var(--dark-text);
}

.brief-list {
  display: grid;
  gap: 0;
  padding: 0;
  list-style: none;
  counter-reset: brief;
  border-top: 1px solid var(--dark-rule);
}

.brief-list li {
  display: grid;
  grid-template-columns: 2.1rem minmax(0, 1fr);
  gap: 0.9rem;
  align-items: baseline;
  padding-block: 0.9rem;
  border-bottom: 1px solid var(--dark-rule);
  counter-increment: brief;
  font-size: 1rem;
  font-weight: 600;
}

.brief-list li::before {
  content: counter(brief, decimal-leading-zero);
  color: var(--accent-on-dark);
  font-family: var(--sans);
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.1em;
}

/* ---------- closing ---------- */

.closing {
  color: var(--dark-text);
  background: var(--dark);
  border-top: 0.25rem solid var(--accent-ink);
}

.closing .shell {
  display: grid;
  justify-items: center;
  gap: 1.5rem;
  padding-block: clamp(4rem, 9vw, 8rem);
  text-align: center;
}

.closing h2 {
  max-width: 22ch;
  font-size: clamp(2.2rem, 5.5vw, 4.2rem);
}

.closing .fine-print {
  max-width: 40ch;
  color: var(--dark-muted);
  letter-spacing: 0.07em;
}

.reassurance {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 0.5rem;
  padding: 0;
  margin-top: 0.75rem;
  list-style: none;
}

.reassurance li {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  padding: 0.55rem 0.8rem;
  color: var(--dark-text);
  border: 1px solid var(--dark-rule);
  font-size: 0.68rem;
  letter-spacing: 0.1em;
}

.reassurance li::before {
  content: "";
  width: 0.4rem;
  height: 0.4rem;
  flex: none;
  background: var(--accent);
}

/* ---------- footer ---------- */

.site-footer {
  background: var(--paper);
}

.footer-inner {
  display: grid;
  gap: 2rem;
  padding-block: clamp(2.5rem, 5vw, 4rem);
}

.footer-inner .wordmark {
  color: var(--ink);
}

.footer-inner .wordmark span {
  color: var(--accent-ink);
}

.footer-details {
  display: grid;
  gap: 1.25rem;
}

.footer-details dt {
  margin-bottom: 0.3rem;
  color: var(--muted);
  font-size: 0.63rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.footer-details dd {
  font-size: 0.92rem;
  font-weight: 600;
}

.footer-details a {
  display: inline-flex;
  align-items: center;
  min-height: 2.75rem;
  max-width: 100%;
  overflow-wrap: anywhere;
  text-decoration-color: var(--rule);
}

.footer-details a:hover {
  color: var(--accent-ink);
}

/* ---------- responsive ---------- */

@media (min-width: 45rem) {
  .question-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .demo-table {
    min-width: 32rem;
  }

  .demo-table th,
  .demo-table td {
    font-size: 0.82rem;
  }

  .demo-axis i {
    display: block;
  }

  .demo[data-state="delayed"] .demo-marker-projected {
    transform: translateX(-50%);
  }

  .demo-table thead th:first-child {
    width: 17.5rem;
  }

  .demo-table thead th:nth-child(2) {
    width: 4rem;
  }

  .prose-columns {
    grid-template-columns: minmax(0, 1.2fr) minmax(15rem, 0.8fr);
  }

  .aside-example,
  .data-grid,
  .offer {
    grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
  }

  .aside-example {
    grid-template-columns: minmax(0, 0.9fr) minmax(0, 1.1fr);
    align-items: center;
  }

  .founder {
    grid-template-columns: minmax(0, 19rem) minmax(0, 1fr);
  }

  .phase-list {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .footer-inner {
    grid-template-columns: minmax(0, auto) minmax(0, 1fr);
    gap: clamp(2rem, 6vw, 6rem);
    align-items: start;
  }

  .footer-details {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 1.5rem;
  }
}

@media (min-width: 64rem) {
  .site-nav {
    display: flex;
    align-items: center;
    justify-content: flex-end;
    flex-wrap: nowrap;
    gap: clamp(0.9rem, 1.9vw, 1.9rem);
    margin-left: auto;
    padding-left: 1.25rem;
  }

  .site-nav a {
    min-height: 2.75rem;
    color: var(--dark-text);
    display: flex;
    align-items: center;
    font-size: 0.7rem;
    font-weight: 700;
    letter-spacing: 0.08em;
    text-decoration: none;
    text-transform: uppercase;
    white-space: nowrap;
  }

  .site-nav a:hover {
    color: var(--accent-on-dark);
  }

  .site-header .header-cta {
    display: inline-flex;
    min-height: 2.75rem;
    margin-left: 1.5rem;
    padding-block: 0.6rem;
  }

  .nav-menu {
    display: none;
  }

  .hero {
    grid-template-columns: minmax(0, 1fr) minmax(0, 1.08fr);
    align-items: center;
    gap: clamp(2.5rem, 5vw, 5rem);
  }

  .hero-copy {
    gap: 1.35rem;
  }

  .section-head {
    gap: 1.25rem;
  }

  .founder {
    grid-template-columns: minmax(0, 17rem) minmax(0, 1fr) minmax(0, 14rem);
  }

  .data-grid {
    grid-template-columns: minmax(0, 1.1fr) minmax(0, 0.9fr);
    gap: clamp(2.5rem, 6vw, 5rem);
  }

  .demo-summary {
    grid-template-columns: repeat(5, minmax(0, 1fr));
  }

  .demo-projected {
    grid-column: auto;
  }

  .offer {
    grid-template-columns: minmax(0, 1.15fr) minmax(0, 0.85fr);
    gap: clamp(2.5rem, 6vw, 5rem);
  }

  .offer .prose {
    padding-top: 0.5rem;
  }
}

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }

  .demo-scene,
  .hero-scene {
    min-height: 0;
  }

  .demo-pin,
  .hero-pin {
    position: static;
  }

  .transform-layer[data-layer="tool"],
  .transform-word,
  .op-bar,
  .op-diamond,
  .op-req,
  .demo-marker,
  .demo-track::after,
  .cta-button {
    transition: none;
  }
}