:root {
  --ink: #17253b;
  --ink-soft: #425066;
  --paper: #f3f0e8;
  --panel: #fffdf8;
  --white: #ffffff;
  --teal: #1f6f78;
  --teal-soft: #dcebea;
  --coral: #d86658;
  --coral-soft: #f5dfda;
  --gold: #b9872d;
  --gold-soft: #f3e8cb;
  --line: #d9d4c8;
  --shadow: 0 18px 48px rgba(23, 37, 59, 0.09);
  --radius: 18px;
  --page: 1180px;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

section[id],
details[id] {
  scroll-margin-top: 92px;
}

body {
  margin: 0;
  background:
    linear-gradient(90deg, rgba(31, 111, 120, 0.035) 1px, transparent 1px) 0 0 / 42px 42px,
    linear-gradient(rgba(31, 111, 120, 0.035) 1px, transparent 1px) 0 0 / 42px 42px,
    var(--paper);
  color: var(--ink);
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  font-size: 16px;
  line-height: 1.65;
}

a {
  color: var(--teal);
  text-underline-offset: 3px;
}

a:hover {
  color: #16555c;
}

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

button,
input {
  font: inherit;
}

.skip-link {
  position: absolute;
  left: 12px;
  top: -60px;
  z-index: 100;
  padding: 10px 14px;
  border-radius: 10px;
  background: var(--ink);
  color: white;
}

.skip-link:focus {
  top: 12px;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 20;
  border-bottom: 1px solid rgba(217, 212, 200, 0.9);
  background: rgba(255, 253, 248, 0.94);
  backdrop-filter: blur(14px);
}

.nav-wrap {
  width: min(calc(100% - 40px), var(--page));
  min-height: 72px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  color: var(--ink);
  font-weight: 780;
  letter-spacing: -0.02em;
  text-decoration: none;
}

.brand-mark {
  position: relative;
  width: 34px;
  height: 34px;
  border: 2px solid var(--ink);
  border-radius: 50%;
  background: var(--panel);
}

.brand-mark::before,
.brand-mark::after {
  content: "";
  position: absolute;
  background: var(--coral);
}

.brand-mark::before {
  width: 3px;
  height: 22px;
  left: 14px;
  top: 5px;
}

.brand-mark::after {
  width: 18px;
  height: 3px;
  left: 7px;
  top: 15px;
  box-shadow: 5px -7px 0 -1px var(--teal), 5px 7px 0 -1px var(--gold);
}

.site-nav {
  display: flex;
  align-items: center;
  gap: 4px;
}

.site-nav a {
  padding: 10px 12px;
  border-radius: 10px;
  color: var(--ink-soft);
  font-size: 0.92rem;
  font-weight: 700;
  text-decoration: none;
}

.site-nav a:hover,
.site-nav a[aria-current="page"] {
  background: var(--teal-soft);
  color: var(--ink);
}

.nav-toggle {
  display: none;
  width: 44px;
  height: 44px;
  border: 1px solid var(--line);
  border-radius: 11px;
  background: var(--panel);
  color: var(--ink);
  cursor: pointer;
}

.page {
  width: min(calc(100% - 40px), var(--page));
  margin: 0 auto;
  padding: 64px 0 88px;
}

.hero {
  display: grid;
  grid-template-columns: minmax(0, 1.18fr) minmax(320px, 0.82fr);
  gap: clamp(42px, 7vw, 96px);
  align-items: center;
  min-height: 600px;
  padding: 52px 0 76px;
}

.eyebrow {
  margin: 0 0 18px;
  color: var(--coral);
  font-size: 0.78rem;
  font-weight: 850;
  letter-spacing: 0.14em;
  text-transform: uppercase;
}

h1,
h2,
h3,
h4 {
  margin-top: 0;
  font-family: Georgia, "Times New Roman", serif;
  line-height: 1.13;
  letter-spacing: -0.025em;
}

h1 {
  max-width: 820px;
  margin-bottom: 24px;
  font-size: clamp(3rem, 6vw, 5.9rem);
  font-weight: 500;
}

.hero h1 {
  font-size: clamp(2.7rem, 4.8vw, 4.9rem);
}

.page-hero h1 {
  max-width: 940px;
  font-size: clamp(2.7rem, 5vw, 5rem);
}

h2 {
  margin-bottom: 18px;
  font-size: clamp(2rem, 3.5vw, 3.35rem);
  font-weight: 500;
}

h3 {
  margin-bottom: 10px;
  font-size: 1.35rem;
}

.lede {
  max-width: 760px;
  margin: 0;
  color: var(--ink-soft);
  font-size: clamp(1.08rem, 1.9vw, 1.35rem);
  line-height: 1.7;
}

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

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 48px;
  padding: 11px 18px;
  border: 1px solid var(--ink);
  border-radius: 12px;
  background: var(--ink);
  color: white;
  font-weight: 760;
  text-decoration: none;
  transition: transform 160ms ease, box-shadow 160ms ease;
}

.button:hover {
  color: white;
  transform: translateY(-2px);
  box-shadow: 0 10px 22px rgba(23, 37, 59, 0.18);
}

.button.secondary {
  background: transparent;
  color: var(--ink);
}

.evidence-map {
  position: relative;
  min-height: 430px;
  padding: 42px 0 30px 62px;
}

.evidence-map::before {
  content: "";
  position: absolute;
  left: 28px;
  top: 58px;
  bottom: 52px;
  width: 3px;
  background: var(--ink);
}

.evidence-map::after {
  content: "";
  position: absolute;
  left: 29px;
  top: 112px;
  width: 94px;
  height: 220px;
  border-top: 3px solid var(--ink);
  border-bottom: 3px solid var(--ink);
  border-right: 3px solid var(--ink);
  border-radius: 0 32px 32px 0;
}

.map-card {
  position: relative;
  z-index: 2;
  width: min(100%, 360px);
  margin-bottom: 18px;
  padding: 20px 22px;
  border: 1px solid var(--line);
  border-left: 6px solid var(--teal);
  border-radius: 14px;
  background: var(--panel);
  box-shadow: var(--shadow);
}

.map-card:nth-child(2) {
  margin-left: 44px;
  border-left-color: var(--coral);
}

.map-card:nth-child(3) {
  margin-left: 8px;
  border-left-color: var(--gold);
}

.map-card span {
  display: block;
  margin-bottom: 3px;
  color: var(--ink-soft);
  font-size: 0.77rem;
  font-weight: 800;
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

.map-card strong {
  display: block;
  font-family: Georgia, "Times New Roman", serif;
  font-size: 1.4rem;
  font-weight: 500;
}

.stats {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  overflow: hidden;
  background: var(--panel);
  box-shadow: var(--shadow);
}

.stat {
  padding: 24px 20px;
  border-right: 1px solid var(--line);
}

.stat:last-child {
  border-right: 0;
}

.stat strong {
  display: block;
  font-family: Georgia, "Times New Roman", serif;
  font-size: 2.35rem;
  font-weight: 500;
}

.stat span {
  color: var(--ink-soft);
  font-size: 0.84rem;
  font-weight: 700;
}

.section {
  padding: 92px 0 0;
}

.compact-section {
  padding-top: 76px;
}

.methodology-figure {
  margin: 0 0 28px;
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--white);
  box-shadow: var(--shadow);
}

.methodology-figure a {
  display: block;
}

.methodology-figure img {
  display: block;
  width: 100%;
  height: auto;
}

.methodology-figure figcaption {
  padding: 16px 20px;
  border-top: 1px solid var(--line);
  color: var(--ink-soft);
  font-size: 0.9rem;
}

.artifact-map-table td:first-child {
  width: 30%;
}

.artifact-map-table td:nth-child(2) {
  width: 31%;
}

.download-list {
  min-width: 290px;
}

.download-list a {
  display: block;
  margin-bottom: 8px;
  font-weight: 760;
}

.download-list a:last-child {
  margin-bottom: 0;
}

.section-heading {
  display: grid;
  grid-template-columns: minmax(0, 0.7fr) minmax(300px, 0.3fr);
  gap: 44px;
  align-items: end;
  margin-bottom: 34px;
}

.section-heading p {
  margin: 0 0 8px;
  color: var(--ink-soft);
}

.grid-3,
.grid-2,
.artifact-grid,
.people-grid {
  display: grid;
  gap: 18px;
}

.grid-3 {
  grid-template-columns: repeat(3, 1fr);
}

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

.artifact-grid {
  grid-template-columns: repeat(3, 1fr);
}

.people-grid {
  grid-template-columns: repeat(4, 1fr);
}

.card,
.artifact-card,
.person-card,
.note,
.step-card {
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--panel);
  box-shadow: 0 10px 26px rgba(23, 37, 59, 0.055);
}

.card,
.person-card,
.step-card {
  padding: 26px;
}

.rq-number,
.cycle-number {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 44px;
  height: 44px;
  margin-bottom: 30px;
  border-radius: 50%;
  background: var(--ink);
  color: white;
  font-size: 0.75rem;
  font-weight: 850;
  letter-spacing: 0.08em;
}

.card p,
.artifact-card p,
.person-card p,
.step-card p {
  margin: 0;
  color: var(--ink-soft);
}

.cycle-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 18px;
  counter-reset: cycle;
}

.cycle-card {
  position: relative;
  padding: 30px;
  border: 1px solid var(--line);
  border-top: 7px solid var(--teal);
  border-radius: var(--radius);
  background: var(--panel);
}

.cycle-card:nth-child(2) {
  border-top-color: var(--coral);
}

.cycle-card:nth-child(3) {
  border-top-color: var(--gold);
}

.cycle-card ul,
.check-list,
.plain-list {
  margin: 18px 0 0;
  padding-left: 20px;
}

.cycle-card li,
.check-list li,
.plain-list li {
  margin: 8px 0;
}

.artifact-card {
  display: flex;
  min-height: 250px;
  padding: 26px;
  flex-direction: column;
}

.artifact-card .status {
  align-self: flex-start;
}

.artifact-card h3 {
  margin-top: 20px;
}

.artifact-card .file-link {
  margin-top: auto;
  padding-top: 24px;
  font-weight: 800;
}

.artifact-card.compact {
  min-height: 235px;
}

.interview-summary-card {
  min-height: 0;
}

.validation-responses-card {
  margin-bottom: 24px;
}

.file-link-stack {
  display: flex;
  margin-top: auto;
  padding-top: 24px;
  flex-direction: column;
  gap: 8px;
}

.file-link-stack .file-link {
  margin-top: 0;
  padding-top: 0;
}

.forms-disclosure {
  margin-top: 24px;
  padding: 22px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: rgba(255, 253, 248, 0.82);
}

.forms-disclosure summary {
  cursor: pointer;
  color: var(--ink);
  font-family: Georgia, "Times New Roman", serif;
  font-size: 1.35rem;
  font-weight: 600;
}

.forms-disclosure > p {
  margin: 12px 0 22px;
  color: var(--ink-soft);
}

.status {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  padding: 5px 10px;
  border-radius: 999px;
  background: var(--teal-soft);
  color: #174f55;
  font-size: 0.76rem;
  font-weight: 850;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

.status.pending {
  background: var(--gold-soft);
  color: #76581f;
}

.status.partial {
  background: var(--coral-soft);
  color: #7f382f;
}

.status::before {
  content: "";
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: currentColor;
}

.page-hero {
  padding: 48px 0 70px;
  border-bottom: 1px solid var(--line);
}

.page-hero .lede {
  max-width: 850px;
}

.kicker-row {
  display: flex;
  flex-wrap: wrap;
  gap: 9px;
  margin-top: 25px;
}

.chip {
  display: inline-flex;
  padding: 6px 10px;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: rgba(255, 253, 248, 0.68);
  color: var(--ink-soft);
  font-size: 0.78rem;
  font-weight: 750;
}

.note {
  padding: 24px 26px;
  border-left: 7px solid var(--teal);
}

.note.warning {
  border-left-color: var(--gold);
}

.note.privacy {
  border-left-color: var(--coral);
}

.note h3 {
  margin-bottom: 8px;
}

.note p:last-child {
  margin-bottom: 0;
}

.code-block {
  margin: 20px 0 0;
  padding: 20px 22px;
  overflow-x: auto;
  border: 1px solid #2f415d;
  border-radius: 14px;
  background: var(--ink);
  color: #f5f0e6;
  font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  font-size: 0.9rem;
  line-height: 1.65;
  white-space: pre-wrap;
}

.steps {
  display: grid;
  gap: 14px;
}

.step-card {
  display: grid;
  grid-template-columns: 54px 1fr;
  gap: 18px;
  align-items: start;
}

.step-card .step-index {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 46px;
  height: 46px;
  border: 1px solid var(--ink);
  border-radius: 12px;
  font-weight: 850;
}

.step-card h3 {
  margin-bottom: 6px;
}

.table-wrap {
  overflow-x: auto;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--panel);
  box-shadow: 0 10px 28px rgba(23, 37, 59, 0.055);
}

table {
  width: 100%;
  border-collapse: collapse;
  text-align: left;
}

th,
td {
  padding: 15px 17px;
  border-bottom: 1px solid var(--line);
  vertical-align: top;
}

th {
  background: #e9e4d8;
  color: var(--ink);
  font-size: 0.75rem;
  font-weight: 850;
  letter-spacing: 0.07em;
  text-transform: uppercase;
}

tbody tr:last-child td {
  border-bottom: 0;
}

tbody tr:hover {
  background: rgba(220, 235, 234, 0.38);
}

.study-id {
  font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  font-weight: 850;
  white-space: nowrap;
}

#study-rows td:nth-child(3) {
  min-width: 360px;
}

.doi-pending {
  color: #806020;
  font-size: 0.84rem;
  font-weight: 750;
  white-space: nowrap;
}

.table-note {
  margin-top: 14px;
  color: var(--ink-soft);
  font-size: 0.9rem;
}

.definition-list {
  display: grid;
  grid-template-columns: minmax(180px, 0.28fr) 1fr;
  border-top: 1px solid var(--line);
}

.definition-list dt,
.definition-list dd {
  margin: 0;
  padding: 17px 0;
  border-bottom: 1px solid var(--line);
}

.definition-list dt {
  padding-right: 24px;
  font-weight: 850;
}

.definition-list dd {
  color: var(--ink-soft);
}

.person-card a {
  display: inline-block;
  margin-top: 12px;
  font-size: 0.88rem;
  font-weight: 800;
}

.site-footer {
  border-top: 1px solid var(--line);
  background: var(--ink);
  color: #e9e5dc;
}

.footer-wrap {
  width: min(calc(100% - 40px), var(--page));
  margin: 0 auto;
  padding: 40px 0;
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 34px;
  align-items: end;
}

.footer-wrap p {
  margin: 5px 0 0;
  color: #bfc5ce;
}

.footer-wrap a {
  color: #ecddd0;
}

.footer-links {
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
  justify-content: flex-end;
}

@media (max-width: 940px) {
  .hero,
  .section-heading {
    grid-template-columns: 1fr;
  }

  .hero {
    min-height: auto;
  }

  .evidence-map {
    max-width: 560px;
  }

  .stats {
    grid-template-columns: repeat(3, 1fr);
  }

  .stat:nth-child(3) {
    border-right: 0;
  }

  .stat:nth-child(n + 4) {
    border-top: 1px solid var(--line);
  }

  .grid-3,
  .cycle-grid,
  .artifact-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .people-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 760px) {
  .nav-wrap {
    width: min(calc(100% - 28px), var(--page));
  }

  .nav-toggle {
    display: inline-flex;
    align-items: center;
    justify-content: center;
  }

  .site-nav {
    position: absolute;
    left: 14px;
    right: 14px;
    top: 64px;
    display: none;
    padding: 10px;
    border: 1px solid var(--line);
    border-radius: 14px;
    background: var(--panel);
    box-shadow: var(--shadow);
    flex-direction: column;
    align-items: stretch;
  }

  .site-nav.open {
    display: flex;
  }

  .site-nav a {
    padding: 12px 14px;
  }

  .page {
    width: min(calc(100% - 28px), var(--page));
    padding-top: 38px;
  }

  .hero {
    padding-top: 28px;
  }

  h1 {
    font-size: clamp(2.75rem, 13vw, 4.2rem);
  }

  .evidence-map {
    min-height: 400px;
    padding-left: 46px;
  }

  .map-card:nth-child(2),
  .map-card:nth-child(3) {
    margin-left: 0;
  }

  .stats,
  .grid-3,
  .grid-2,
  .cycle-grid,
  .artifact-grid,
  .people-grid {
    grid-template-columns: 1fr;
  }

  .stat,
  .stat:nth-child(3) {
    border-right: 0;
    border-bottom: 1px solid var(--line);
  }

  .stat:nth-child(n + 4) {
    border-top: 0;
  }

  .stat:last-child {
    border-bottom: 0;
  }

  .definition-list {
    grid-template-columns: 1fr;
  }

  .definition-list dt {
    padding-bottom: 4px;
    border-bottom: 0;
  }

  .definition-list dd {
    padding-top: 0;
  }

  .step-card {
    grid-template-columns: 1fr;
  }

  .footer-wrap {
    grid-template-columns: 1fr;
  }

  .footer-links {
    justify-content: flex-start;
  }
}

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

  *,
  *::before,
  *::after {
    transition-duration: 0.01ms !important;
  }
}

@media print {
  .site-header,
  .site-footer,
  .hero-actions,
  .nav-toggle {
    display: none !important;
  }

  body {
    background: white;
  }

  .page {
    width: 100%;
    padding: 0;
  }

  .card,
  .artifact-card,
  .person-card,
  .note,
  .step-card,
  .table-wrap {
    box-shadow: none;
  }
}