:root {
  color-scheme: light;
  --background: #f7f7f5;
  --surface-container-lowest: #ffffff;
  --surface-card: #fcfcfb;
  --surface-bright: #fdf8f8;
  --surface: #fdf8f8;
  --surface-container-low: #f7f3f2;
  --surface-panel: #f3f2ef;
  --surface-container: #f1edec;
  --surface-container-high: #ebe7e6;
  --surface-container-highest: #e5e2e1;
  --primary: #000000;
  --on-primary: #ffffff;
  --on-surface: #1c1b1b;
  --secondary: #6b6b6b;
  --on-surface-variant: #444748;
  --border-default: #e7e7e4;
  --outline: #747878;
  --outline-variant: #c4c7c7;
  --success: #10b981;
  --success-text: #047857;
  --error: #ba1a1a;
  --amber: #b7791f;
  --accent-rose: #f43f5e;
  --accent-orange: #fb923c;
  --accent-pink: #f9a8d4;
  --accent-purple: #a855f7;
  --accent-indigo: #6366f1;
  --accent-blue: #3b82f6;
  --accent-sky: #38bdf8;
  --accent-cyan: #67e8f9;
  --accent-teal: #2dd4bf;
  --accent-emerald: #10b981;
  --font: "Geist", ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont,
    "Segoe UI", sans-serif;
  --ease: cubic-bezier(0.16, 1, 0.3, 1);
  --page: min(100% - 64px, 1280px);
}

[data-theme="dark"] {
  color-scheme: dark;
  --background: #151716;
  --surface-container-lowest: #202321;
  --surface-card: #1b1e1c;
  --surface-bright: #202321;
  --surface: #202321;
  --surface-container-low: #242824;
  --surface-panel: #222622;
  --surface-container: #2a2f2a;
  --surface-container-high: #303630;
  --surface-container-highest: #343a34;
  --primary: #f4f0ef;
  --on-primary: #151716;
  --on-surface: #f4f0ef;
  --secondary: #a7aaa8;
  --on-surface-variant: #c8c6c5;
  --border-default: #303530;
  --outline: #747878;
  --outline-variant: #4b524d;
  --success-text: #6ee7d8;
  --error: #fca5a5;
}

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

html {
  scroll-behavior: smooth;
  scroll-padding-top: 104px;
  text-size-adjust: 100%;
}

body {
  margin: 0;
  background: var(--background);
  color: var(--on-surface);
  font-family: var(--font);
  font-size: 16px;
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

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

a {
  color: inherit;
  text-decoration-thickness: 0.08em;
  text-underline-offset: 0.18em;
}

button,
input {
  font: inherit;
}

code {
  padding: 0.1rem 0.25rem;
  border: 1px solid var(--border-default);
  border-radius: 8px;
  background: var(--surface-container-low);
  font-size: 0.88em;
}

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

::selection {
  background: rgba(16, 185, 129, 0.18);
  color: var(--primary);
}

.skip-link {
  position: fixed;
  top: 18px;
  left: 18px;
  z-index: 9999;
  transform: translateY(-150%);
  border-radius: 999px;
  background: var(--primary);
  color: var(--on-primary);
  padding: 10px 15px;
  font-weight: 650;
  text-decoration: none;
  transition: transform 160ms var(--ease);
}

.skip-link:focus {
  transform: translateY(0);
}

.read-progress {
  position: fixed;
  inset: var(--navbar-height, 72px) 0 auto;
  z-index: 900;
  height: 2px;
  background: transparent;
}

.read-progress span {
  display: block;
  width: 0;
  height: 100%;
  background: var(--primary);
}

.methodology-shell {
  padding: calc(var(--navbar-height, 72px) + 68px) 0
    clamp(96px, 9vw, 144px);
}

.methodology-hero {
  width: var(--page);
  margin: 0 auto clamp(72px, 9vw, 128px);
}

.breadcrumbs {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  align-items: center;
  margin-bottom: clamp(24px, 4vw, 48px);
  color: var(--secondary);
  font-size: 14px;
  font-weight: 500;
}

.breadcrumbs a {
  color: var(--on-surface);
  text-decoration: none;
}

.hero-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(280px, 390px);
  gap: clamp(32px, 7vw, 96px);
  align-items: end;
}

.hero-copy {
  max-width: 900px;
}

.eyebrow {
  width: fit-content;
  border-radius: 999px;
  background: var(--surface-container-highest);
  color: var(--primary);
  padding: 5px 12px;
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.1em;
  line-height: 1;
  text-transform: uppercase;
}

h1 {
  max-width: 13ch;
  margin-top: 16px;
  color: var(--primary);
  font-size: clamp(3rem, 7vw, 5.25rem);
  font-weight: 600;
  letter-spacing: -0.04em;
  line-height: 1.05;
  text-wrap: balance;
}

h2 {
  max-width: 16ch;
  color: var(--primary);
  font-size: clamp(2rem, 4vw, 3rem);
  font-weight: 600;
  letter-spacing: -0.03em;
  line-height: 1.1;
  text-wrap: balance;
}

h3 {
  color: var(--primary);
  font-size: 20px;
  font-weight: 600;
  letter-spacing: -0.02em;
  line-height: 1.2;
}

.mission,
.lede {
  max-width: 70ch;
  color: var(--secondary);
  font-size: 18px;
  line-height: 1.6;
  letter-spacing: -0.01em;
}

.mission {
  margin-top: 28px;
}

.hero-actions,
.handoff-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 30px;
}

.button {
  min-height: 44px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border: 1px solid var(--border-default);
  border-radius: 999px;
  padding: 0 18px;
  font-size: 14px;
  font-weight: 500;
  text-decoration: none;
  transition:
    background 160ms var(--ease),
    border-color 160ms var(--ease),
    color 160ms var(--ease);
}

.button.primary {
  border-color: var(--primary);
  background: var(--primary);
  color: var(--on-primary);
}

.button.secondary {
  border-color: var(--outline);
  background: transparent;
  color: var(--primary);
}

.button:hover {
  border-color: var(--primary);
}

.doc-card,
.summary-card,
.method-section {
  border: 1px solid var(--border-default);
  background: var(--surface-card);
}

.doc-card {
  position: relative;
  overflow: hidden;
  border-radius: 28px;
  padding: 24px;
  background:
    radial-gradient(circle at 76% 18%, rgba(56, 189, 248, 0.28), transparent 32%),
    radial-gradient(circle at 18% 70%, rgba(16, 185, 129, 0.2), transparent 34%),
    var(--surface-panel);
}

.doc-card::before {
  content: "";
  position: absolute;
  inset: 1px;
  border-radius: 27px;
  background: rgba(255, 255, 255, 0.36);
  backdrop-filter: blur(28px);
  pointer-events: none;
}

.doc-card > * {
  position: relative;
  z-index: 1;
}

.doc-card dl {
  display: grid;
  gap: 14px;
}

.doc-card div {
  padding-bottom: 14px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.38);
}

.doc-card div:last-child {
  border-bottom: 0;
  padding-bottom: 0;
}

.doc-card dt,
.review-row,
.note,
.record-label,
table caption {
  color: var(--secondary);
  font-size: 13px;
  font-weight: 600;
}

.doc-card dd {
  margin-top: 4px;
  color: var(--primary);
  font-weight: 650;
  line-height: 1.35;
}

.doc-card p {
  margin-top: 24px;
  color: var(--on-surface-variant);
  font-size: 0.95rem;
}

.summary-card {
  margin-top: clamp(40px, 7vw, 84px);
  border-radius: 28px;
  padding: clamp(22px, 4vw, 40px);
  background: var(--surface-panel);
}

.section-head {
  position: relative;
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto auto;
  gap: 10px;
  align-items: start;
  margin-bottom: 24px;
}

.section-head .eyebrow {
  grid-column: 1 / -1;
}

.section-head.compact h2 {
  max-width: 18ch;
}

.heading-anchor,
.copy-link {
  opacity: 0;
  transition: opacity 160ms var(--ease);
}

.method-section:hover .heading-anchor,
.method-section:focus-within .heading-anchor,
.method-section:hover .copy-link,
.method-section:focus-within .copy-link,
.summary-card:hover .heading-anchor,
.summary-card:hover .copy-link,
.summary-card:focus-within .heading-anchor,
.summary-card:focus-within .copy-link {
  opacity: 1;
}

.heading-anchor {
  width: 34px;
  height: 34px;
  display: inline-grid;
  place-items: center;
  border: 1px solid var(--border-default);
  border-radius: 999px;
  color: var(--secondary);
  text-decoration: none;
}

.copy-link {
  min-height: 34px;
  border: 1px solid var(--border-default);
  border-radius: 999px;
  background: var(--surface);
  color: var(--secondary);
  padding: 0 10px;
  font-size: 12px;
  font-weight: 700;
  cursor: pointer;
}

.copy-link.is-copied {
  border-color: var(--success);
  color: var(--success-text);
}

.summary-list,
.commitment-list {
  display: grid;
  gap: 16px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.summary-list {
  grid-template-columns: repeat(4, minmax(0, 1fr));
}

.summary-list li,
.commitment-list li {
  border-top: 1px solid var(--border-default);
  padding-top: 16px;
  color: var(--secondary);
  font-size: 0.98rem;
}

.summary-list strong,
.commitment-list strong {
  color: var(--primary);
}

.methodology-layout {
  width: var(--page);
  display: grid;
  grid-template-columns: 248px minmax(0, 1fr);
  gap: clamp(32px, 5vw, 72px);
  align-items: start;
  margin: 0 auto;
}

.method-toc {
  position: sticky;
  top: calc(var(--navbar-height, 72px) + 28px);
  min-width: 0;
  max-height: calc(100vh - var(--navbar-height, 72px) - 44px);
  overflow: auto;
  scrollbar-gutter: stable;
}

.toc-search {
  border: 1px solid var(--border-default);
  border-radius: 24px;
  background: var(--surface-card);
  padding: 12px;
}

.toc-search label {
  display: block;
  margin-bottom: 8px;
  color: var(--secondary);
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.toc-search input {
  width: 100%;
  min-height: 40px;
  border: 1px solid var(--border-default);
  border-radius: 999px;
  background: var(--background);
  color: var(--primary);
  padding: 0 12px;
  outline: none;
}

.toc-search input:focus {
  border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(0, 0, 0, 0.08);
}

.toc-search span {
  display: inline-flex;
  margin-top: 8px;
  color: var(--secondary);
  font-size: 12px;
  font-weight: 650;
}

.method-toc nav {
  display: grid;
  gap: 2px;
  margin-top: 18px;
}

.method-toc a {
  min-width: 0;
  border-radius: 999px;
  color: var(--secondary);
  padding: 7px 12px;
  font-size: 14px;
  font-weight: 620;
  text-decoration: none;
  overflow-wrap: anywhere;
}

.method-toc a:hover,
.method-toc a.is-active {
  background: var(--surface);
  color: var(--primary);
}

.method-article {
  display: grid;
  min-width: 0;
  gap: clamp(48px, 6vw, 72px);
}

.method-section {
  scroll-margin-top: 112px;
  border-radius: 28px;
  padding: clamp(24px, 4vw, 42px);
}

.method-section.is-filtered-out {
  display: none;
}

.stance-grid,
.persona-list,
.stage-grid,
.definition-grid,
.resource-grid,
.contact-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 12px;
  margin-top: 28px;
}

.persona-list {
  grid-template-columns: repeat(4, minmax(0, 1fr));
}

.stance-grid article,
.persona-list article,
.stage-grid article,
.definition-grid article,
.resource-grid article,
.timeline-list article,
.governance-panel > div {
  border: 1px solid var(--border-default);
  border-radius: 24px;
  background: var(--surface-card);
  padding: 18px;
}

.stance-grid p,
.persona-list p,
.stage-grid p,
.definition-grid p,
.resource-grid p,
.timeline-list p,
.governance-panel p {
  margin-top: 8px;
  color: var(--secondary);
  font-size: 0.96rem;
  line-height: 1.56;
}

blockquote {
  margin-top: 28px;
  border-top: 1px solid var(--border-default);
  border-bottom: 1px solid var(--border-default);
  color: var(--primary);
  padding: 18px 0;
  font-size: 1.04rem;
  font-weight: 650;
  letter-spacing: -0.015em;
}

.review-row {
  display: flex;
  flex-wrap: wrap;
  gap: 10px 18px;
  align-items: center;
  justify-content: space-between;
  margin-top: 28px;
  padding-top: 16px;
  border-top: 1px solid var(--border-default);
}

.review-row a {
  color: var(--primary);
  font-weight: 700;
}

.source-logos {
  display: grid;
  grid-template-columns: repeat(6, minmax(0, 1fr));
  gap: 8px;
  margin: 28px 0;
}

.source-logos span {
  min-height: 58px;
  display: grid;
  place-items: center;
  border: 1px solid var(--border-default);
  border-radius: 999px;
  background: var(--surface-container-low);
  color: var(--secondary);
  padding: 8px 12px;
  text-align: center;
  font-size: 12px;
  font-weight: 750;
  letter-spacing: 0.05em;
  text-transform: uppercase;
}

.table-wrap {
  overflow-x: auto;
  border: 1px solid var(--border-default);
  border-radius: 24px;
  background: var(--surface-card);
}

table {
  width: 100%;
  min-width: 860px;
  border-collapse: collapse;
  font-size: 0.9rem;
}

caption {
  caption-side: top;
  padding: 14px 16px;
  text-align: left;
}

th,
td {
  border-top: 1px solid var(--border-default);
  padding: 12px 14px;
  text-align: left;
  vertical-align: top;
}

thead th {
  background: var(--surface-panel);
  color: var(--secondary);
  font-size: 12px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

tbody th {
  color: var(--primary);
  font-weight: 700;
}

td {
  color: var(--on-surface-variant);
}

.quality {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  border: 1px solid var(--border-default);
  border-radius: 999px;
  padding: 5px 9px;
  font-size: 12px;
  font-weight: 760;
  line-height: 1;
  white-space: nowrap;
}

.quality::before {
  content: "";
  width: 8px;
  height: 8px;
  border-radius: 999px;
  background: currentColor;
}

.quality.verified {
  border-color: rgba(16, 185, 129, 0.25);
  background: rgba(16, 185, 129, 0.15);
  color: var(--success-text);
}

.quality.partial {
  border-color: rgba(183, 121, 31, 0.24);
  background: rgba(251, 146, 60, 0.12);
  color: #7c4a10;
}

.quality.unverified {
  border-color: rgba(186, 26, 26, 0.2);
  background: rgba(255, 218, 214, 0.64);
  color: var(--error);
}

details {
  margin-top: 20px;
  border: 1px solid var(--border-default);
  border-radius: 24px;
  background: var(--surface-card);
  padding: 0 18px;
}

summary {
  cursor: pointer;
  color: var(--primary);
  padding: 16px 0;
  font-weight: 720;
}

details p,
details ul {
  margin: 0 0 18px;
  color: var(--secondary);
}

.sub-block {
  margin-top: 24px;
  border-top: 1px solid var(--border-default);
  padding-top: 18px;
}

.sub-block p {
  max-width: 72ch;
  margin-top: 8px;
  color: var(--secondary);
}

.flow-diagram {
  display: grid;
  grid-template-columns: repeat(5, minmax(0, 1fr));
  gap: 10px;
  margin: 30px 0;
  padding: 0;
  list-style: none;
}

.flow-diagram li {
  position: relative;
}

.flow-diagram li:not(:last-child)::after {
  content: "";
  position: absolute;
  top: 50%;
  right: -10px;
  width: 10px;
  height: 1px;
  background: var(--outline-variant);
}

.flow-diagram a {
  min-height: 190px;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  border: 1px solid var(--border-default);
  border-radius: 22px;
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.72), transparent),
    var(--surface-panel);
  padding: 18px;
  text-decoration: none;
}

.flow-diagram span {
  color: var(--primary);
  font-size: 12px;
  font-weight: 800;
  letter-spacing: 0.12em;
}

.flow-diagram strong {
  display: block;
  color: var(--primary);
  font-size: 1.1rem;
  line-height: 1;
}

.flow-diagram em {
  color: var(--secondary);
  font-size: 0.9rem;
  font-style: normal;
  line-height: 1.4;
}

.quality-key {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 22px;
}

.record-walkthrough {
  display: grid;
  grid-template-columns: minmax(0, 0.92fr) minmax(280px, 0.68fr);
  gap: 18px;
  margin-top: 26px;
}

.record-shell {
  border: 1px solid var(--border-default);
  border-radius: 28px;
  background:
    radial-gradient(circle at 80% 18%, rgba(45, 212, 191, 0.28), transparent 38%),
    var(--surface-panel);
  padding: clamp(20px, 4vw, 34px);
}

.record-shell h3 {
  margin-top: 10px;
  font-size: clamp(1.35rem, 3vw, 2.25rem);
  letter-spacing: -0.045em;
}

.record-shell dl {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 12px;
  margin-top: 28px;
}

.record-shell div {
  border: 1px solid var(--border-default);
  border-radius: 16px;
  background: rgba(255, 255, 255, 0.42);
  padding: 14px;
}

.record-shell dt {
  color: var(--secondary);
  font-size: 12px;
  font-weight: 760;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.record-shell dd {
  margin-top: 6px;
  color: var(--primary);
  font-weight: 700;
}

.callout-list {
  display: grid;
  gap: 10px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.callout-list li {
  border: 1px solid var(--border-default);
  border-radius: 16px;
  background: var(--surface);
  color: var(--secondary);
  padding: 15px;
}

.callout-list strong {
  color: var(--primary);
}

.policy-box {
  border: 1px solid var(--border-default);
  border-radius: 24px;
  background:
    linear-gradient(135deg, rgba(16, 185, 129, 0.12), transparent 70%),
    var(--surface);
  padding: clamp(20px, 4vw, 32px);
}

.policy-box p {
  max-width: 68ch;
  margin-top: 8px;
  color: var(--secondary);
}

.governance-panel {
  display: grid;
  grid-template-columns: 1.2fr 1fr;
  gap: 12px;
  margin-top: 26px;
}

.governance-panel > div:first-child {
  grid-row: span 2;
}

.timeline-list {
  display: grid;
  gap: 12px;
  margin-top: 24px;
}

.timeline-list time {
  display: inline-flex;
  margin-bottom: 10px;
  color: var(--primary);
  font-size: 12px;
  font-weight: 800;
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

.faq-list {
  display: grid;
  gap: 10px;
}

.faq-list details {
  margin-top: 0;
}

.contact-grid a {
  min-height: 128px;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  border: 1px solid var(--border-default);
  border-radius: 22px;
  background: var(--surface);
  padding: 18px;
  color: var(--primary);
  font-weight: 700;
  text-decoration: none;
  overflow-wrap: anywhere;
}

.contact-grid span {
  color: var(--secondary);
  font-size: 12px;
  font-weight: 800;
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

.note {
  margin-top: 18px;
  line-height: 1.5;
}

.site-footer {
  width: var(--page);
  display: flex;
  justify-content: space-between;
  gap: 32px;
  margin: 0 auto;
  border-top: 1px solid var(--border-default);
  padding: 36px 0 48px;
}

.footer-brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  color: var(--primary);
  font-weight: 720;
  text-decoration: none;
}

.footer-brand img {
  filter: invert(1);
}

@media (prefers-color-scheme: dark) {
  .footer-brand img {
    filter: none;
  }
}

[data-theme="dark"] .footer-brand img {
  filter: none;
}

.site-footer p {
  max-width: 62ch;
  margin-top: 12px;
  color: var(--secondary);
  font-size: 14px;
}

.site-footer nav {
  display: flex;
  flex-wrap: wrap;
  gap: 12px 20px;
}

.site-footer nav a {
  color: var(--secondary);
  font-size: 14px;
  font-weight: 650;
  text-decoration: none;
}

.site-footer nav a:hover {
  color: var(--primary);
}

a:focus-visible,
button:focus-visible,
summary:focus-visible,
input:focus-visible,
.table-wrap:focus-visible {
  outline: 3px solid rgba(0, 0, 0, 0.28);
  outline-offset: 3px;
}

@media (max-width: 1050px) {
  .hero-grid,
  .methodology-layout,
  .record-walkthrough {
    grid-template-columns: 1fr;
  }

  .method-toc {
    position: static;
    max-height: none;
    overflow: visible;
  }

  .method-toc nav {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .summary-list,
  .persona-list,
  .source-logos,
  .flow-diagram {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .flow-diagram li::after {
    display: none;
  }
}

@media (max-width: 720px) {
  :root {
    --page: min(100% - 24px, 1240px);
  }

  body {
    font-size: 16px;
  }

  .methodology-shell {
    padding-top: calc(var(--navbar-height, 72px) + 34px);
  }

  h1 {
    max-width: 11ch;
  }

  .doc-card,
  .summary-card,
  .method-section {
    border-radius: 22px;
  }

  .section-head {
    grid-template-columns: minmax(0, 1fr);
  }

  .heading-anchor,
  .copy-link {
    opacity: 1;
  }

  .summary-list,
  .stance-grid,
  .persona-list,
  .stage-grid,
  .definition-grid,
  .resource-grid,
  .contact-grid,
  .source-logos,
  .flow-diagram,
  .governance-panel,
  .record-shell dl,
  .method-toc nav {
    grid-template-columns: 1fr;
  }

  .flow-diagram a {
    min-height: 150px;
  }

  .governance-panel > div:first-child {
    grid-row: auto;
  }

  .site-footer {
    flex-direction: column;
  }
}

@media print {
  :root {
    --background: white;
    --surface: white;
    --surface-card: white;
    --surface-panel: white;
    --primary: black;
    --on-surface: black;
    --secondary: #333;
    --border-default: #bbb;
  }

  body {
    background: white;
    color: black;
    font-size: 12pt;
  }

  .nav-band,
  .method-toc,
  .read-progress,
  .hero-actions,
  .copy-link,
  .heading-anchor,
  .site-footer nav,
  script {
    display: none !important;
  }

  .methodology-shell {
    padding: 0;
  }

  .methodology-hero,
  .methodology-layout,
  .site-footer {
    width: auto;
    margin: 0;
  }

  .hero-grid,
  .methodology-layout,
  .summary-list,
  .stance-grid,
  .stage-grid,
  .definition-grid,
  .resource-grid,
  .record-walkthrough,
  .flow-diagram {
    display: block;
  }

  .doc-card,
  .summary-card,
  .method-section,
  .flow-diagram a,
  .table-wrap {
    break-inside: avoid;
    box-shadow: none;
  }

  .method-section {
    margin-top: 24pt;
  }

  a[href]::after {
    content: " (" attr(href) ")";
    font-size: 9pt;
    color: #555;
  }
}