:root {
  --ink: #111411;
  --ink-soft: #343932;
  --paper: #f2efe6;
  --paper-bright: #faf8f1;
  --line: #c9c5b9;
  --acid: #d9f43b;
  --orange: #ff5a1f;
  --blue: #70a9ff;
  --green: #4ec97b;
  --shadow: 0 18px 50px rgba(27, 31, 26, 0.12);
  --font-display: "Arial Narrow", "Roboto Condensed", "Helvetica Neue", sans-serif;
  --font-body: "Avenir Next", Avenir, "Segoe UI", Helvetica, Arial, sans-serif;
  --font-mono: "SFMono-Regular", Consolas, "Liberation Mono", monospace;
}

* {
  box-sizing: border-box;
}

[hidden] {
  display: none !important;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  background:
    linear-gradient(rgba(17, 20, 17, 0.035) 1px, transparent 1px),
    linear-gradient(90deg, rgba(17, 20, 17, 0.035) 1px, transparent 1px),
    var(--paper);
  background-size: 32px 32px;
  color: var(--ink);
  font-family: var(--font-body), sans-serif;
}

a {
  color: inherit;
  text-decoration: none;
}

.skip-link {
  background: var(--acid);
  color: var(--ink);
  font-weight: 800;
  left: 12px;
  padding: 12px 16px;
  position: fixed;
  top: 12px;
  transform: translateY(-180%);
  z-index: 100;
}

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

button,
input,
select {
  font: inherit;
}

.site-header,
.hero,
.tool-section,
.method-section,
.growth-section,
.pilot-section,
.boundary-section,
.builder-page,
.result-page,
footer {
  width: min(1180px, calc(100% - 40px));
  margin-inline: auto;
}

.builder-page,
.result-page {
  padding-block: 70px 120px;
}

.builder-page .section-heading,
.result-page > h1 {
  max-width: 900px;
}

.builder-page h1,
.result-page h1 {
  font-size: clamp(3.4rem, 8vw, 7rem);
}

.builder-page .section-heading > p:last-child {
  color: var(--ink-soft);
  font-size: 1.05rem;
  line-height: 1.7;
  max-width: 760px;
}

.plan-switch {
  display: grid;
  gap: 14px;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  margin: 48px 0 20px;
  max-width: 880px;
}

.plan-option {
  background: var(--paper-bright);
  border: 2px solid var(--line);
  color: var(--ink);
  cursor: pointer;
  display: grid;
  gap: 6px;
  padding: 22px;
  text-align: left;
}

.plan-option strong {
  font-family: var(--font-display), sans-serif;
  font-size: 1.55rem;
  text-transform: uppercase;
}

.plan-option span {
  color: var(--ink-soft);
  font-size: 0.78rem;
}

.plan-option.is-selected {
  background: var(--acid);
  border-color: var(--ink);
  box-shadow: 6px 6px 0 var(--ink);
}

.builder-form {
  background: var(--paper-bright);
  border: 1px solid var(--ink);
  box-shadow: var(--shadow);
  max-width: 880px;
  padding: clamp(24px, 5vw, 52px);
}

.builder-form fieldset {
  border: 0;
  border-top: 1px solid var(--line);
  margin: 0 0 42px;
  padding: 30px 0 0;
}

.builder-form fieldset:first-of-type {
  border-top: 0;
  padding-top: 0;
}

.builder-form legend,
.fieldset-heading legend {
  font-family: var(--font-display), sans-serif;
  font-size: 1.5rem;
  font-weight: 800;
  margin-bottom: 22px;
  text-transform: uppercase;
}

.fieldset-heading {
  align-items: start;
  display: flex;
  justify-content: space-between;
}

.form-grid {
  display: grid;
  gap: 18px;
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.builder-form label {
  display: grid;
  gap: 8px;
}

.builder-form label > span {
  font-family: var(--font-mono), monospace;
  font-size: 0.68rem;
  font-weight: 700;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

.builder-form input,
.builder-form select,
.builder-form textarea {
  background: #fff;
  border: 1px solid #9d9d96;
  border-radius: 0;
  color: var(--ink);
  min-height: 48px;
  padding: 11px 12px;
  width: 100%;
}

.builder-form textarea {
  resize: vertical;
}

.wide-field,
.email-field {
  grid-column: 1 / -1;
}

.email-field small {
  color: var(--ink-soft);
}

.part-row + .part-row {
  border-top: 1px dashed var(--line);
  margin-top: 30px;
  padding-top: 26px;
}

.part-row-heading {
  align-items: center;
  display: flex;
  justify-content: space-between;
  margin-bottom: 16px;
}

.text-button {
  background: transparent;
  border: 0;
  border-bottom: 1px solid currentColor;
  color: var(--ink);
  cursor: pointer;
  font-size: 0.75rem;
  font-weight: 800;
  padding: 3px 0;
}

.turnstile-slot {
  margin-top: 20px;
  min-height: 65px;
}

.submit-button {
  cursor: pointer;
  min-width: 310px;
}

.submit-button:disabled {
  cursor: wait;
  opacity: 0.55;
}

.form-status {
  font-weight: 700;
  margin-bottom: 14px;
}

.form-status.is-error,
.job-state.is-error {
  color: #a42411;
}

.form-fineprint {
  color: var(--ink-soft);
  font-size: 0.68rem;
  line-height: 1.55;
  margin-top: 14px;
  max-width: 680px;
}

.form-fineprint a {
  text-decoration: underline;
}

.job-state {
  align-items: center;
  background: var(--paper-bright);
  border-left: 5px solid var(--orange);
  display: flex;
  gap: 18px;
  max-width: 760px;
  padding: 22px;
}

.job-state p {
  color: var(--ink-soft);
  margin: 5px 0 0;
}

.research-spinner {
  animation: spin 900ms linear infinite;
  border: 4px solid var(--line);
  border-radius: 50%;
  border-top-color: var(--orange);
  flex: 0 0 auto;
  height: 38px;
  width: 38px;
}

@keyframes spin { to { transform: rotate(360deg); } }

.result-summary {
  background: var(--acid);
  border: 1px solid var(--ink);
  margin: 28px 0;
  max-width: 900px;
  padding: 24px;
}

.result-summary p {
  margin: 8px 0 0;
}

.research-result {
  background: var(--paper-bright);
  border: 1px solid var(--ink);
  margin-top: 24px;
  max-width: 900px;
  padding: clamp(22px, 4vw, 38px);
}

.confidence-block {
  background: #252925;
  color: #fff;
  margin: 24px 0;
  padding: 22px;
}

.confidence-score {
  color: var(--acid);
  font-family: var(--font-display), sans-serif;
  font-size: 3rem;
  font-weight: 800;
}

.confidence-block small,
.confidence-block p {
  color: #c9ccc5;
}

.confidence-meter {
  background: #555951;
  height: 8px;
  margin: 12px 0;
}

.confidence-meter span {
  background: var(--acid);
  display: block;
  height: 100%;
}

.confidence-block p {
  font-size: 0.78rem;
  margin: 0;
}

.research-details {
  display: grid;
  gap: 16px;
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.research-details dt {
  font-family: var(--font-mono), monospace;
  font-size: 0.62rem;
  margin-bottom: 5px;
  text-transform: uppercase;
}

.research-details dd {
  font-size: 0.8rem;
  line-height: 1.5;
  margin: 0;
}

.record-citations li small {
  display: block;
  margin-top: 4px;
}

.site-header {
  align-items: center;
  display: flex;
  justify-content: space-between;
  min-height: 86px;
}

.wordmark {
  align-items: center;
  display: inline-flex;
  font-family: var(--font-display), sans-serif;
  font-size: 1.4rem;
  font-weight: 800;
  gap: 11px;
  letter-spacing: 0.01em;
  text-transform: uppercase;
}

.wordmark-mark {
  align-items: center;
  background: var(--ink);
  color: var(--acid);
  display: inline-flex;
  font-family: var(--font-mono), monospace;
  font-size: 0.78rem;
  height: 36px;
  justify-content: center;
  letter-spacing: -0.05em;
  transform: skew(-7deg);
  width: 40px;
}

nav {
  align-items: center;
  display: flex;
  font-size: 0.84rem;
  font-weight: 700;
  gap: 28px;
}

nav a {
  border-bottom: 2px solid transparent;
  padding-block: 8px;
}

nav a:hover,
nav a:focus-visible {
  border-color: var(--ink);
}

nav .nav-cta {
  background: var(--ink);
  border: 0;
  color: var(--paper-bright);
  padding: 12px 18px;
}

.hero {
  align-items: center;
  display: grid;
  gap: clamp(40px, 7vw, 90px);
  grid-template-columns: minmax(0, 1.08fr) minmax(360px, 0.92fr);
  min-height: 660px;
  padding-block: 70px 100px;
}

.eyebrow {
  align-items: center;
  display: flex;
  font-family: var(--font-mono), monospace;
  font-size: 0.74rem;
  font-weight: 600;
  gap: 10px;
  letter-spacing: 0.09em;
  margin: 0 0 18px;
  text-transform: uppercase;
}

.eyebrow::before {
  background: var(--orange);
  content: "";
  display: inline-block;
  height: 3px;
  width: 34px;
}

h1,
h2,
h3,
p {
  margin-top: 0;
}

h1,
h2,
h3 {
  font-family: var(--font-display), sans-serif;
}

h1 {
  font-size: clamp(4.3rem, 9vw, 8.2rem);
  font-weight: 800;
  letter-spacing: -0.045em;
  line-height: 0.78;
  margin-bottom: 36px;
  text-transform: uppercase;
}

h1 span {
  color: var(--orange);
}

.hero-deck {
  color: var(--ink-soft);
  font-size: clamp(1.05rem, 2vw, 1.24rem);
  line-height: 1.7;
  max-width: 640px;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 34px;
}

.button {
  align-items: center;
  border: 2px solid var(--ink);
  display: inline-flex;
  font-size: 0.84rem;
  font-weight: 800;
  justify-content: center;
  min-height: 48px;
  padding: 0 21px;
  text-transform: uppercase;
  transition:
    background 150ms ease,
    color 150ms ease,
    transform 150ms ease;
}

.button:hover,
.button:focus-visible {
  transform: translateY(-2px);
}

.button-primary {
  background: var(--ink);
  color: var(--paper-bright);
}

.button-primary:hover,
.button-primary:focus-visible {
  background: var(--orange);
  border-color: var(--orange);
  color: var(--ink);
}

.button-secondary {
  background: transparent;
}

.button-secondary:hover,
.button-secondary:focus-visible {
  background: var(--acid);
}

.coverage-strip {
  align-items: center;
  display: flex;
  flex-wrap: wrap;
  font-family: var(--font-mono), monospace;
  font-size: 0.68rem;
  gap: 8px;
  margin-top: 48px;
  text-transform: uppercase;
}

.coverage-strip span {
  margin-right: 4px;
  opacity: 0.62;
}

.coverage-strip strong,
.coverage-strip a {
  border: 1px solid var(--line);
  padding: 7px 9px;
}

.coverage-strip a:hover,
.coverage-strip a:focus-visible {
  background: var(--acid);
}

.hero-panel {
  background: var(--paper-bright);
  border: 1px solid var(--ink);
  box-shadow: 13px 13px 0 var(--acid), var(--shadow);
  padding: 26px;
  position: relative;
  transform: rotate(1deg);
}

.hero-panel::before {
  background: repeating-linear-gradient(
    90deg,
    var(--ink) 0 6px,
    transparent 6px 12px
  );
  content: "";
  height: 5px;
  left: 0;
  position: absolute;
  right: 0;
  top: 0;
}

.panel-topline {
  align-items: center;
  display: flex;
  font-family: var(--font-mono), monospace;
  font-size: 0.64rem;
  letter-spacing: 0.06em;
  margin-bottom: 30px;
  text-transform: uppercase;
}

.signal-dot {
  background: var(--green);
  border-radius: 50%;
  height: 8px;
  margin-right: 8px;
  width: 8px;
}

.record-id {
  margin-left: auto;
  opacity: 0.55;
}

.part-pair {
  align-items: center;
  display: grid;
  gap: 14px;
  grid-template-columns: 1fr auto 1fr;
}

.part-pair small,
.verdict small,
.result-title p,
.price-card > p:first-child {
  display: block;
  font-family: var(--font-mono), monospace;
  font-size: 0.65rem;
  letter-spacing: 0.07em;
  margin-bottom: 8px;
  opacity: 0.62;
  text-transform: uppercase;
}

.part-pair strong {
  display: block;
  font-family: var(--font-display), sans-serif;
  font-size: 1.32rem;
  line-height: 1.05;
}

.pair-arrow {
  font-size: 1.5rem;
}

.verdict {
  align-items: center;
  display: flex;
  gap: 15px;
  margin-block: 30px;
  padding: 18px;
}

.verdict.status-good {
  background: #d7f4de;
  border-left: 5px solid #5ba76e;
}

.verdict.status-caution {
  background: #fff0cf;
  border-left: 5px solid var(--orange);
}

.verdict.status-stop {
  background: #ffd8d0;
  border-left: 5px solid #c44d32;
}

.verdict.status-unknown {
  background: #e5e4df;
  border-left: 5px solid #8e918b;
}

.verdict-icon {
  align-items: center;
  border: 2px solid;
  border-radius: 50%;
  display: flex;
  flex: 0 0 auto;
  font-family: var(--font-mono), monospace;
  font-weight: 700;
  height: 30px;
  justify-content: center;
  width: 30px;
}

.verdict strong {
  font-size: 0.9rem;
}

.result-facts {
  border-bottom: 1px solid var(--line);
  border-top: 1px solid var(--line);
  display: grid;
  grid-template-columns: 1fr 1fr;
  margin: 0;
}

.result-facts div {
  padding-block: 16px;
}

.result-facts div + div {
  border-left: 1px solid var(--line);
  padding-left: 18px;
}

.result-facts dt,
.result-details dt {
  font-family: var(--font-mono), monospace;
  font-size: 0.63rem;
  letter-spacing: 0.06em;
  margin-bottom: 5px;
  opacity: 0.6;
  text-transform: uppercase;
}

.result-facts dd,
.result-details dd {
  font-size: 0.78rem;
  font-weight: 700;
  margin: 0;
}

.hero-record-note {
  color: var(--ink-soft);
  font-size: 0.68rem;
  line-height: 1.5;
  margin: 16px 0 0;
}

.hero-record-link {
  display: block;
  font-weight: 700;
  margin-top: 8px;
  text-decoration: underline;
  text-underline-offset: 3px;
}

.tool-section {
  background: var(--ink);
  color: var(--paper-bright);
  padding: clamp(42px, 7vw, 80px);
  width: min(1320px, calc(100% - 24px));
}

.section-heading {
  max-width: 670px;
}

.section-heading h2,
.growth-section h2,
.boundary-section h2 {
  font-size: clamp(2.8rem, 6vw, 5.7rem);
  font-weight: 800;
  letter-spacing: -0.035em;
  line-height: 0.92;
  margin-bottom: 22px;
  text-transform: uppercase;
}

.section-heading > p:last-child {
  color: #bbbdb7;
  line-height: 1.7;
}

.fitment-app {
  margin-top: 48px;
}

.fitment-controls {
  display: grid;
  gap: 12px;
  grid-template-columns: 1fr 1fr 1.25fr;
}

.fitment-controls label {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.fitment-controls label > span {
  font-family: var(--font-mono), monospace;
  font-size: 0.65rem;
  letter-spacing: 0.07em;
  text-transform: uppercase;
}

.fitment-controls input,
.fitment-controls select {
  appearance: none;
  background: #262a25;
  border: 1px solid #575b55;
  border-radius: 0;
  color: var(--paper-bright);
  min-height: 56px;
  outline: none;
  padding: 0 16px;
}

.fitment-controls select {
  background-image:
    linear-gradient(45deg, transparent 50%, var(--acid) 50%),
    linear-gradient(135deg, var(--acid) 50%, transparent 50%);
  background-position:
    calc(100% - 19px) 24px,
    calc(100% - 13px) 24px;
  background-repeat: no-repeat;
  background-size: 6px 6px;
  padding-right: 38px;
}

.fitment-controls input:focus,
.fitment-controls select:focus {
  border-color: var(--acid);
  box-shadow: 0 0 0 2px rgba(217, 244, 59, 0.24);
}

.results-toolbar {
  align-items: center;
  border-bottom: 1px solid #494d47;
  display: flex;
  justify-content: space-between;
  margin-top: 38px;
  padding-bottom: 13px;
}

.results-toolbar p {
  font-size: 0.8rem;
  margin: 0;
}

.results-toolbar span {
  color: var(--acid);
  font-family: var(--font-mono), monospace;
  font-size: 0.62rem;
  letter-spacing: 0.07em;
  text-transform: uppercase;
}

.results-list {
  display: grid;
  gap: 12px;
  margin-top: 16px;
}

.result-card {
  background: var(--paper-bright);
  color: var(--ink);
}

.result-main {
  align-items: center;
  display: flex;
  gap: 20px;
  justify-content: space-between;
  padding: 22px 24px;
}

.result-title p {
  margin-bottom: 5px;
}

.result-title h3 {
  font-size: 1.65rem;
  line-height: 1;
  margin: 0;
}

.status-chip {
  border: 1px solid;
  flex: 0 0 auto;
  font-family: var(--font-mono), monospace;
  font-size: 0.64rem;
  font-weight: 600;
  padding: 8px 10px;
  text-transform: uppercase;
}

.status-good {
  background: #d7f4de;
  border-color: #5ba76e;
}

.status-caution {
  background: #fff0cf;
  border-color: #c48724;
}

.status-stop {
  background: #ffd8d0;
  border-color: #c44d32;
}

.status-unknown {
  background: #e5e4df;
  border-color: #8e918b;
}

.result-details {
  border-top: 1px solid var(--line);
  padding: 22px 24px;
}

.result-details dl {
  display: grid;
  gap: 18px;
  grid-template-columns: repeat(4, 1fr);
  margin: 0;
}

.caveat {
  background: #fff0cf;
  border-left: 4px solid var(--orange);
  font-size: 0.78rem;
  line-height: 1.55;
  margin: 20px 0 0;
  padding: 12px 14px;
}

.source-row {
  align-items: center;
  display: flex;
  font-family: var(--font-mono), monospace;
  font-size: 0.65rem;
  justify-content: space-between;
  margin-top: 18px;
}

.source-row > div {
  display: flex;
  flex-wrap: wrap;
  gap: 15px;
}

.source-row a {
  border-bottom: 1px solid;
}

.correction-link {
  opacity: 0.64;
}

.empty-state {
  align-items: center;
  background: #252925;
  border: 1px dashed #5f645c;
  display: grid;
  gap: 20px;
  grid-template-columns: auto 1fr auto;
  margin-top: 16px;
  padding: 24px;
}

.empty-state > span {
  align-items: center;
  border: 2px solid var(--acid);
  border-radius: 50%;
  color: var(--acid);
  display: flex;
  font-family: var(--font-mono), monospace;
  font-size: 1.2rem;
  height: 44px;
  justify-content: center;
  width: 44px;
}

.empty-state h3 {
  font-size: 1.5rem;
  margin-bottom: 3px;
}

.empty-state p {
  color: #bbbdb7;
  font-size: 0.78rem;
  line-height: 1.5;
  margin: 0;
}

.empty-state .button-secondary {
  border-color: #a7aaa3;
}

.method-section {
  padding-block: 130px;
}

.method-section .section-heading > p:last-child {
  color: var(--ink-soft);
}

.method-grid {
  border-bottom: 1px solid var(--line);
  border-top: 1px solid var(--line);
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  margin-top: 60px;
}

.method-grid article {
  min-height: 290px;
  padding: 28px 26px 34px 0;
}

.method-grid article + article {
  border-left: 1px solid var(--line);
  padding-left: 26px;
}

.method-number {
  color: var(--orange);
  font-family: var(--font-mono), monospace;
  font-size: 0.72rem;
}

.method-grid h3 {
  font-size: 1.7rem;
  line-height: 1;
  margin: 56px 0 16px;
  text-transform: uppercase;
}

.method-grid p {
  color: var(--ink-soft);
  font-size: 0.82rem;
  line-height: 1.7;
}

.evidence-key {
  display: grid;
  gap: 18px;
  grid-template-columns: repeat(4, 1fr);
  margin-top: 30px;
}

.evidence-key > div {
  display: grid;
  grid-template-columns: auto 1fr;
}

.key-swatch {
  grid-row: span 2;
  height: 100%;
  margin-right: 12px;
  min-height: 38px;
  width: 5px;
}

.key-demonstrated {
  background: var(--green);
}

.key-listed {
  background: var(--blue);
}

.key-corroborated {
  background: var(--acid);
}

.key-unknown {
  background: #8e918b;
}

.evidence-key strong {
  font-size: 0.76rem;
}

.evidence-key small {
  color: var(--ink-soft);
  font-size: 0.65rem;
  margin-top: 3px;
}

.record-index {
  padding-bottom: 130px;
  width: min(1180px, calc(100% - 40px));
  margin-inline: auto;
}

.record-index .section-heading > p:last-child {
  color: var(--ink-soft);
}

.record-index-list {
  border-top: 1px solid var(--line);
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  margin-top: 48px;
}

.record-index-item {
  border-bottom: 1px solid var(--line);
  display: grid;
  gap: 6px;
  padding: 20px 18px 20px 0;
}

.record-index-item:nth-child(even) {
  border-left: 1px solid var(--line);
  padding-left: 18px;
}

.record-index-item small {
  font-family: var(--font-mono), monospace;
  font-size: 0.62rem;
  letter-spacing: 0.05em;
  opacity: 0.65;
  text-transform: uppercase;
}

.record-index-item strong {
  font-family: var(--font-display), sans-serif;
  font-size: 1.3rem;
  line-height: 1.05;
  text-transform: uppercase;
}

.record-index-item span {
  color: var(--ink-soft);
  font-size: 0.72rem;
}

.growth-section {
  align-items: center;
  background: var(--acid);
  display: grid;
  gap: clamp(50px, 9vw, 130px);
  grid-template-columns: 1.1fr 0.9fr;
  padding: clamp(42px, 7vw, 80px);
  width: min(1320px, calc(100% - 24px));
}

.growth-section > div:first-child > p:not(.eyebrow) {
  line-height: 1.7;
  max-width: 650px;
}

.growth-section ul {
  display: grid;
  gap: 9px;
  list-style: square;
  padding-left: 20px;
}

.growth-card {
  background: var(--paper-bright);
  border: 1px solid var(--ink);
  box-shadow: 10px 10px 0 var(--ink);
  padding: 34px;
}

.growth-card > strong {
  display: block;
  font-family: var(--font-display), sans-serif;
  font-size: clamp(2.6rem, 5vw, 4.6rem);
  font-weight: 800;
  letter-spacing: -0.04em;
  line-height: 0.92;
  text-transform: uppercase;
}

.growth-card > p:not(.eyebrow) {
  color: var(--ink-soft);
  font-size: 0.82rem;
  line-height: 1.65;
  margin: 22px 0 26px;
}

.button-full {
  width: 100%;
}

.growth-card small {
  display: block;
  font-size: 0.62rem;
  line-height: 1.45;
  margin-top: 12px;
  opacity: 0.62;
  text-align: center;
}

.boundary-section {
  align-items: start;
  display: grid;
  gap: 60px;
  grid-template-columns: 0.55fr 1.45fr;
  padding-block: 120px;
}

.pilot-section {
  align-items: center;
  border-bottom: 1px solid var(--line);
  display: grid;
  gap: 50px;
  grid-template-columns: 1.2fr 0.8fr;
  padding-block: 80px;
}

.pilot-section h2 {
  font-size: clamp(2.2rem, 4vw, 4rem);
  font-weight: 800;
  letter-spacing: -0.03em;
  line-height: 0.96;
  margin: 0;
  text-transform: uppercase;
}

.pilot-actions p {
  color: var(--ink-soft);
  font-size: 0.82rem;
  line-height: 1.65;
}

.setup-chip {
  border: 1px dashed var(--ink);
  display: inline-block;
  font-family: var(--font-mono), monospace;
  font-size: 0.66rem;
  padding: 9px 11px;
  text-transform: uppercase;
}

.boundary-section p:last-child {
  color: var(--ink-soft);
  line-height: 1.75;
  max-width: 760px;
}

.record-page {
  min-height: 72vh;
  padding-block: 90px 120px;
  width: min(980px, calc(100% - 40px));
  margin-inline: auto;
}

.breadcrumbs {
  display: flex;
  gap: 0.55rem;
  align-items: center;
  margin-bottom: 2rem;
  color: var(--ink-soft);
  font-size: 0.9rem;
}

.breadcrumbs a,
.record-citations a,
.related-records a {
  color: var(--ink);
  text-decoration: underline;
  text-decoration-color: var(--orange);
  text-underline-offset: 0.2em;
}

.answer-first {
  max-width: 54rem;
  margin: 1.5rem 0 2rem;
  padding: 1.25rem 1.4rem;
  border-left: 4px solid var(--orange);
  background: var(--paper-bright);
}

.answer-first p {
  margin: 0;
}

.answer-first p + p {
  margin-top: 0.55rem;
  color: var(--ink-soft);
}

.record-citations,
.related-records {
  max-width: 54rem;
  margin-top: 2.5rem;
}

.record-citations h2,
.related-records h2 {
  font-size: clamp(1.3rem, 2vw, 1.75rem);
}

.related-records {
  display: block;
}

.record-citations ul,
.related-records ul {
  display: grid;
  gap: 0.7rem;
  padding-left: 1.2rem;
}

.coverage-summary {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  margin: 0 0 2.5rem;
  padding: 0;
  list-style: none;
}

.coverage-summary li {
  border: 1px solid var(--line);
  background: var(--paper-bright);
  padding: 0.7rem 0.85rem;
  font-family: var(--font-mono), monospace;
  font-size: 0.7rem;
  text-transform: uppercase;
}

.bike-results {
  display: grid;
  gap: 1rem;
}

.policy-page {
  margin-inline: auto;
  min-height: 72vh;
  padding-block: 90px 120px;
  width: min(820px, calc(100% - 40px));
}

.policy-page > h1 {
  font-size: clamp(3.2rem, 8vw, 6.4rem);
  line-height: 0.88;
  margin-bottom: 20px;
}

.policy-updated {
  color: var(--ink-soft);
  font-family: var(--font-mono), monospace;
  font-size: 0.7rem;
  letter-spacing: 0.06em;
  margin-bottom: 56px;
  text-transform: uppercase;
}

.policy-page section {
  border-top: 1px solid var(--line);
  padding-block: 28px;
}

.policy-page section h2 {
  font-size: 1.65rem;
  margin-bottom: 14px;
  text-transform: uppercase;
}

.policy-page section p {
  color: var(--ink-soft);
  line-height: 1.75;
}

.policy-page section p:last-child {
  margin-bottom: 0;
}

.policy-page section a {
  border-bottom: 1px solid;
  color: var(--ink);
}

.record-page > h1 {
  max-width: 64rem;
  font-size: clamp(2.8rem, 6vw, 5rem);
  line-height: 0.92;
  margin-bottom: 24px;
}

.bike-page > h1 {
  font-size: clamp(3.2rem, 8vw, 7rem);
}

.record-page-deck {
  color: var(--ink-soft);
  font-size: 1.05rem;
  line-height: 1.65;
  margin-bottom: 42px;
}

.record-boundary {
  border: 1px solid var(--line);
  margin-top: 24px;
  padding: 20px;
}

.record-boundary strong {
  font-family: var(--font-display), sans-serif;
  font-size: 1.2rem;
  text-transform: uppercase;
}

.record-boundary p {
  color: var(--ink-soft);
  font-size: 0.78rem;
  line-height: 1.6;
  margin: 8px 0 0;
}

.not-found {
  display: grid;
  min-height: 100vh;
  place-content: center;
  padding: 30px;
  text-align: center;
}

.not-found h1 {
  font-size: clamp(3rem, 9vw, 7rem);
  max-width: 900px;
}

footer {
  border-top: 2px solid var(--ink);
  display: grid;
  gap: 40px;
  grid-template-columns: 1fr auto;
  padding-block: 38px 50px;
}

.footer-mark {
  margin-bottom: 15px;
}

footer > div:first-child p {
  color: var(--ink-soft);
  font-size: 0.78rem;
}

.footer-links {
  display: flex;
  font-size: 0.75rem;
  font-weight: 700;
  gap: 24px;
}

.legal {
  color: var(--ink-soft);
  font-size: 0.62rem;
  grid-column: 1 / -1;
  line-height: 1.6;
  margin: 0;
  max-width: 920px;
}

@media (max-width: 900px) {
  .hero {
    grid-template-columns: 1fr;
  }

  .hero-panel {
    margin-inline: auto;
    max-width: 620px;
    transform: none;
  }

  .fitment-controls {
    grid-template-columns: 1fr 1fr;
  }

  .search-field {
    grid-column: 1 / -1;
  }

  .result-details dl,
  .method-grid,
  .evidence-key {
    grid-template-columns: 1fr 1fr;
  }

  .method-grid article:nth-child(3) {
    border-left: 0;
    border-top: 1px solid var(--line);
  }

  .method-grid article:nth-child(4) {
    border-top: 1px solid var(--line);
  }

  .growth-section {
    grid-template-columns: 1fr;
  }

  .pilot-section {
    grid-template-columns: 1fr;
  }

  .growth-card {
    max-width: 520px;
  }
}

@media (max-width: 640px) {
  .site-header,
  .hero,
  .method-section,
  .record-index,
  .pilot-section,
  .boundary-section,
  .record-page,
  .policy-page,
  .builder-page,
  .result-page,
  footer {
    width: min(100% - 26px, 1180px);
  }

  .site-header {
    min-height: 72px;
  }

  .site-header nav a:not(.nav-cta) {
    display: none;
  }

  nav .nav-cta {
    padding: 10px 12px;
  }

  .hero {
    min-height: auto;
    padding-block: 50px 80px;
  }

  h1 {
    font-size: clamp(4rem, 20vw, 6rem);
  }

  .hero-panel {
    box-shadow: 7px 7px 0 var(--acid);
    padding: 22px 18px;
  }

  .part-pair {
    align-items: start;
    grid-template-columns: 1fr;
  }

  .pair-arrow {
    transform: rotate(90deg);
  }

  .tool-section,
  .growth-section {
    padding: 42px 22px;
  }

  .fitment-controls,
  .result-details dl,
  .method-grid,
  .evidence-key,
  .plan-switch,
  .form-grid,
  .research-details {
    grid-template-columns: 1fr;
  }

  .submit-button {
    min-width: 0;
    width: 100%;
  }

  .search-field {
    grid-column: auto;
  }

  .result-main,
  .source-row,
  .results-toolbar {
    align-items: flex-start;
    flex-direction: column;
  }

  .source-row {
    gap: 18px;
  }

  .empty-state {
    grid-template-columns: 1fr;
  }

  .method-section {
    padding-block: 90px;
  }

  .record-index {
    padding-bottom: 90px;
  }

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

  .record-index-item:nth-child(even) {
    border-left: 0;
    padding-left: 0;
  }

  .method-grid article,
  .method-grid article + article {
    border-left: 0;
    border-top: 1px solid var(--line);
    min-height: auto;
    padding: 28px 0;
  }

  .method-grid article:first-child {
    border-top: 0;
  }

  .method-grid h3 {
    margin-top: 30px;
  }

  .boundary-section {
    gap: 20px;
    grid-template-columns: 1fr;
    padding-block: 90px;
  }

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

  .footer-links {
    flex-wrap: wrap;
  }
}

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

  .button {
    transition: none;
  }
}