:root {
  --paper: #f2f1ed;
  --paper-bright: #fbfaf7;
  --ink: #171716;
  --ink-soft: #2b2b29;
  --night: #121412;
  --night-raised: #1b1e1b;
  --orange: #f05a28;
  --orange-dark: #a63a12;
  --yellow: #f7bd2d;
  --mint: #9bd1c5;
  --muted: #666660;
  --line: #c9c8c1;
  --line-dark: #3a3d39;
  --danger: #a52c25;
  --success: #1e6d4f;
  --sans: "IBM Plex Sans", sans-serif;
  --mono: "JetBrains Mono", monospace;
  --shell: min(1180px, calc(100% - 48px));
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  background: var(--paper);
  scrollbar-color: var(--orange) var(--night);
  scrollbar-width: thin;
}

body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: var(--sans);
  font-size: 16px;
  line-height: 1.55;
  -webkit-font-smoothing: antialiased;
}

body::selection,
body *::selection {
  background: var(--orange);
  color: var(--ink);
}

a {
  color: inherit;
}

button,
input,
textarea {
  font: inherit;
}

button,
a {
  -webkit-tap-highlight-color: transparent;
}

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

.shell {
  width: var(--shell);
  margin-inline: auto;
}

.skip-link {
  position: fixed;
  top: 12px;
  left: 12px;
  z-index: 100;
  padding: 10px 14px;
  background: var(--orange);
  color: var(--ink);
  font-family: var(--mono);
  font-size: 12px;
  font-weight: 700;
  text-decoration: none;
  transform: translateY(-160%);
}

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

:focus-visible {
  outline: 3px solid var(--orange);
  outline-offset: 4px;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 40;
  background: rgba(242, 241, 237, 0.96);
  border-bottom: 1px solid var(--line);
  backdrop-filter: blur(12px);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 32px;
  min-height: 68px;
}

.wordmark {
  display: inline-flex;
  align-items: baseline;
  gap: 9px;
  color: var(--ink);
  font-family: var(--mono);
  text-decoration: none;
}

.wordmark-company {
  font-size: 13px;
  font-weight: 800;
  letter-spacing: -0.035em;
}

.wordmark-property {
  color: var(--orange-dark);
  font-size: 12px;
  font-weight: 700;
}

.primary-nav {
  display: flex;
  align-items: center;
  gap: 24px;
}

.primary-nav a {
  font-family: var(--mono);
  font-size: 12px;
  font-weight: 700;
  text-decoration: none;
}

.primary-nav a:last-child {
  padding: 10px 13px;
  background: var(--orange);
  color: var(--ink);
}

.primary-nav a:hover {
  color: var(--orange-dark);
}

.primary-nav a:last-child:hover {
  background: var(--orange-dark);
  color: #fff;
}

.hero {
  display: grid;
  grid-template-columns: minmax(0, 1.08fr) minmax(420px, 0.92fr);
  align-items: center;
  gap: clamp(48px, 8vw, 112px);
  min-height: 690px;
  padding-block: 80px;
}

.hero-copy h1,
.section-heading h2,
.network-section h2,
.contact-section h2,
.upstream h2 {
  margin: 0;
  font-family: var(--mono);
  font-weight: 800;
  letter-spacing: -0.04em;
  line-height: 0.93;
  text-wrap: balance;
}

.hero-copy h1 {
  max-width: 9.5ch;
  font-size: clamp(58px, 7.4vw, 104px);
}

.hero-copy h1 span {
  color: var(--orange-dark);
}

.hero-copy > p:first-of-type {
  max-width: 650px;
  margin: 30px 0 0;
  color: var(--ink-soft);
  font-size: clamp(18px, 2vw, 22px);
  line-height: 1.55;
}

.hero-actions,
.link-row {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 14px;
}

.hero-actions {
  margin-top: 32px;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 44px;
  padding: 11px 15px;
  border: 1px solid var(--ink);
  border-radius: 0;
  font-family: var(--mono);
  font-size: 12px;
  font-weight: 800;
  text-decoration: none;
  cursor: pointer;
}

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

.button-primary:hover {
  background: var(--orange-dark);
  border-color: var(--orange-dark);
  color: #fff;
}

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

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

.hero-note {
  margin: 20px 0 0;
  color: var(--muted);
  font-family: var(--mono);
  font-size: 12px;
}

.signal-board {
  position: relative;
  scroll-margin-top: 120px;
  overflow: hidden;
  background: var(--night);
  border: 1px solid var(--night);
  color: #f1f1eb;
}

.signal-board::after {
  position: absolute;
  top: 0;
  left: -35%;
  width: 32%;
  height: 2px;
  background: var(--orange);
  content: "";
  animation: signal-scan 2.8s cubic-bezier(0.16, 1, 0.3, 1) 350ms 1 both;
}

@keyframes signal-scan {
  from { transform: translateX(0); }
  to { transform: translateX(430%); }
}

.signal-heading {
  display: flex;
  justify-content: space-between;
  gap: 16px;
  padding: 16px 18px;
  border-bottom: 1px solid var(--line-dark);
  font-family: var(--mono);
  font-size: 11px;
  font-weight: 700;
}

.signal-live {
  color: #b9d9c5;
}

.signal-live i,
.trust-grid i {
  display: inline-block;
  width: 6px;
  height: 6px;
  margin-right: 6px;
  background: var(--orange);
  border-radius: 50%;
}

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

.signal-grid a {
  display: flex;
  flex-direction: column;
  min-height: 158px;
  padding: 22px 20px;
  border-right: 1px solid var(--line-dark);
  border-bottom: 1px solid var(--line-dark);
  text-decoration: none;
}

.signal-grid a:nth-child(even) {
  border-right: 0;
}

.signal-grid a:nth-child(n + 3) {
  border-bottom: 0;
}

.signal-grid a:hover {
  background: var(--night-raised);
}

.signal-grid strong {
  font-family: var(--mono);
  font-size: clamp(30px, 4vw, 48px);
  line-height: 1;
  font-variant-numeric: tabular-nums;
}

.signal-grid span {
  margin-top: 10px;
  color: #d1d2cc;
  font-size: 13px;
}

.signal-grid small {
  margin-top: auto;
  color: var(--orange);
  font-family: var(--mono);
  font-size: 11px;
}

.signal-source {
  display: flex;
  justify-content: space-between;
  gap: 20px;
  padding: 15px 18px;
  background: #232622;
  color: #c4c6bf;
  font-family: var(--mono);
  font-size: 11px;
}

.signal-source a {
  color: var(--yellow);
  text-underline-offset: 3px;
}

.trust-strip {
  border-block: 1px solid var(--line);
  background: var(--paper-bright);
}

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

.trust-grid p {
  margin: 0;
  padding: 18px 16px;
  border-right: 1px solid var(--line);
  font-family: var(--mono);
  font-size: 11px;
  font-weight: 700;
  text-align: center;
}

.trust-grid p:last-child {
  border-right: 0;
}

.feature {
  display: grid;
  grid-template-columns: minmax(0, 0.85fr) minmax(460px, 1.15fr);
  gap: clamp(48px, 8vw, 110px);
  padding-block: 110px;
}

.feature h2 {
  margin: 0;
  font-family: var(--mono);
  font-size: clamp(46px, 6vw, 76px);
  letter-spacing: -0.04em;
  line-height: 1;
}

.feature-lede {
  max-width: 60ch;
  margin: 24px 0 0;
  color: var(--ink-soft);
  font-size: 19px;
}

.metric-row {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  margin-top: 34px;
  border-block: 1px solid var(--line);
}

.metric-row div {
  padding: 18px 12px 18px 0;
  border-right: 1px solid var(--line);
}

.metric-row div:not(:first-child) {
  padding-left: 16px;
}

.metric-row div:last-child {
  border-right: 0;
}

.metric-row strong,
.metric-row span {
  display: block;
}

.metric-row strong {
  font-family: var(--mono);
  font-size: 24px;
  font-variant-numeric: tabular-nums;
}

.metric-row span {
  margin-top: 4px;
  color: var(--muted);
  font-size: 12px;
}

.feature .link-row {
  margin-top: 28px;
}

.text-link,
.panel-body a,
.sibling-body a,
.item-links a {
  color: var(--ink);
  font-family: var(--mono);
  font-size: 12px;
  font-weight: 800;
  text-underline-offset: 4px;
}

.text-link:hover,
.panel-body a:hover,
.sibling-body a:hover,
.item-links a:hover {
  color: var(--orange-dark);
}

.measurement-note {
  margin: 18px 0 0;
  color: var(--muted);
  font-family: var(--mono);
  font-size: 11px;
}

.feature-screen {
  position: relative;
  align-self: center;
  overflow: hidden;
  background: #0d0e0e;
  border: 1px solid var(--ink);
}

.feature-screen img {
  width: 100%;
  height: auto;
  aspect-ratio: auto;
  object-fit: contain;
  object-position: top;
  filter: saturate(0.9) contrast(1.03);
  transition: filter 250ms ease-out;
}

.feature-screen:hover img {
  filter: saturate(1) contrast(1.03);
}

.feature-screen span {
  position: absolute;
  right: 12px;
  bottom: 12px;
  padding: 8px 10px;
  background: var(--orange);
  color: var(--ink);
  font-family: var(--mono);
  font-size: 11px;
  font-weight: 800;
}

.method-pair,
.catalog-section,
.upstream {
  background: var(--night);
  color: #f1f1eb;
}

.method-pair {
  padding-block: 112px;
}

.section-heading {
  margin-bottom: 54px;
}

.split-heading {
  display: grid;
  grid-template-columns: minmax(0, 0.9fr) minmax(360px, 0.65fr);
  align-items: end;
  gap: clamp(40px, 8vw, 120px);
}

.section-heading h2 {
  font-size: clamp(42px, 5vw, 70px);
}

.split-heading > p,
.catalog-heading > p {
  max-width: 58ch;
  margin: 0;
  color: var(--muted);
  font-size: 16px;
}

.method-pair .split-heading > p,
.catalog-section .catalog-heading > p {
  color: #b9bbb5;
}

.paired-panels {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 24px;
}

.proof-panel {
  border: 1px solid var(--line-dark);
}

.proof-panel-light {
  background: var(--paper-bright);
  color: var(--ink);
}

.proof-panel-dark {
  background: #08212b;
  color: #f4f3ee;
}

.panel-screen {
  display: block;
  overflow: hidden;
  border-bottom: 1px solid currentColor;
}

.panel-screen img,
.sibling-screen img,
.product-grid img {
  width: 100%;
  height: auto;
  aspect-ratio: auto;
  object-fit: contain;
  object-position: top;
  transition: filter 250ms ease-out;
}

.panel-screen:hover img,
.sibling-screen:hover img,
.product-grid a:hover img {
  filter: saturate(1.04) contrast(1.02);
}

.feature-screen,
.panel-screen,
.sibling-screen,
.product-grid > a {
  touch-action: pan-y;
}

.panel-body {
  padding: 26px;
}

.panel-body h3,
.sibling-body h3,
.catalog-item h3,
.empty-state h3 {
  margin: 0;
  font-family: var(--mono);
  font-weight: 800;
  letter-spacing: -0.03em;
}

.panel-body h3 {
  font-size: 28px;
}

.panel-body p {
  max-width: 60ch;
  min-height: 50px;
  margin: 14px 0 22px;
}

.proof-panel-dark .panel-body p {
  color: #c5d3d5;
}

.proof-panel-dark .panel-body a {
  color: var(--yellow);
}

.panel-body .link-row {
  gap: 20px;
}

.sibling-work {
  padding-block: 112px;
}

.sibling-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 24px;
}

.sibling-grid > article {
  background: var(--paper-bright);
  border: 1px solid var(--line);
}

.sibling-screen {
  display: block;
  overflow: hidden;
  border-bottom: 1px solid var(--line);
}

.sibling-body {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 10px 24px;
  align-items: end;
  padding: 24px;
}

.sibling-body h3 {
  font-size: 23px;
}

.sibling-body p {
  grid-column: 1 / -1;
  margin: 0;
  color: var(--muted);
}

.catalog-section {
  padding-block: 112px;
}

.catalog-heading {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(320px, 0.6fr);
  align-items: end;
  gap: 60px;
}

.catalog-tools {
  display: flex;
  align-items: end;
  justify-content: space-between;
  gap: 24px;
  padding-bottom: 20px;
  border-bottom: 1px solid var(--line-dark);
}

.filter-group {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.filter-group button,
.empty-state button {
  min-height: 38px;
  padding: 8px 12px;
  background: transparent;
  border: 1px solid #565a55;
  border-radius: 0;
  color: #d5d7d1;
  font-family: var(--mono);
  font-size: 11px;
  font-weight: 800;
  text-transform: uppercase;
  cursor: pointer;
}

.filter-group button:hover,
.filter-group button[aria-pressed="true"],
.empty-state button:hover {
  background: var(--orange);
  border-color: var(--orange);
  color: var(--ink);
}

.search-control {
  display: flex;
  flex-direction: column;
  gap: 7px;
  width: min(340px, 100%);
  color: #b7b9b3;
  font-family: var(--mono);
  font-size: 11px;
  font-weight: 700;
  text-transform: uppercase;
}

.search-control input {
  width: 100%;
  min-height: 40px;
  padding: 9px 12px;
  background: #1a1c1a;
  border: 1px solid #565a55;
  border-radius: 0;
  color: #fff;
  font-family: var(--sans);
  font-size: 14px;
}

.search-control input::placeholder {
  color: #9fa19a;
  opacity: 1;
}

.filter-status {
  margin: 14px 0 0;
  color: #b7b9b3;
  font-family: var(--mono);
  font-size: 11px;
}

.selection-rubric {
  margin-top: 18px;
  padding-block: 14px;
  border-block: 1px solid var(--line-dark);
}

.selection-rubric summary {
  width: max-content;
  min-height: 44px;
  color: #f3f3ed;
  font-family: var(--mono);
  font-size: 12px;
  font-weight: 800;
  line-height: 44px;
  text-decoration: underline;
  text-decoration-color: var(--orange);
  text-underline-offset: 5px;
  cursor: pointer;
}

.selection-rubric summary::marker {
  color: var(--orange);
}

.selection-rubric p {
  max-width: 75ch;
  margin: 8px 0 4px;
  color: #b9bbb5;
}

.catalog-ledger {
  margin-top: 28px;
  border-top: 1px solid #565a55;
}

.catalog-item {
  display: grid;
  grid-template-columns: 170px minmax(0, 1fr) minmax(150px, 230px);
  gap: 30px;
  align-items: start;
  padding: 26px 0;
  border-bottom: 1px solid var(--line-dark);
}

.catalog-item[hidden] {
  display: none;
}

.item-type {
  color: var(--orange);
  font-family: var(--mono);
  font-size: 11px;
  font-weight: 800;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

.catalog-item h3 {
  color: #fff;
  font-size: 21px;
}

.catalog-item p {
  max-width: 68ch;
  margin: 9px 0 0;
  color: #b9bbb5;
  font-size: 14px;
}

.item-links {
  display: flex;
  flex-direction: column;
  align-items: flex-end;
  gap: 9px;
  text-align: right;
}

.item-links a {
  color: #f3f3ed;
}

.empty-state {
  margin-top: 28px;
  padding: 48px;
  border: 1px solid var(--line-dark);
  text-align: center;
}

.empty-state h3 {
  font-size: 24px;
}

.empty-state p {
  color: #b9bbb5;
}

.product-strip {
  padding-block: 112px;
  background: var(--paper-bright);
}

.product-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  border-top: 1px solid var(--line);
  border-left: 1px solid var(--line);
}

.product-grid > a {
  display: flex;
  flex-direction: column;
  overflow: hidden;
  border-right: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  color: var(--ink);
  text-decoration: none;
}

.product-grid > a > img {
  border-bottom: 1px solid var(--line);
}

.product-grid > a > span:last-child {
  display: flex;
  flex-direction: column;
  gap: 5px;
  padding: 18px;
}

.product-grid strong {
  font-family: var(--mono);
  font-size: 17px;
}

.product-grid small {
  color: var(--muted);
  font-size: 12px;
}

.upstream {
  padding-block: 112px;
}

#catalog,
#upstream,
#network,
#contact {
  scroll-margin-top: 120px;
}

.upstream-grid {
  display: grid;
  grid-template-columns: minmax(0, 0.72fr) minmax(480px, 1.28fr);
  gap: clamp(50px, 8vw, 120px);
}

.upstream h2 {
  max-width: 10ch;
  font-size: clamp(42px, 5vw, 70px);
}

.upstream h2 span {
  display: block;
  color: var(--orange);
  font-size: clamp(100px, 14vw, 190px);
  line-height: 0.8;
  font-variant-numeric: tabular-nums;
}

.upstream-intro p {
  max-width: 62ch;
  margin: 30px 0;
  color: #b9bbb5;
}

.upstream-ledger {
  border-top: 1px solid #565a55;
}

.upstream-ledger > * {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 110px;
  gap: 4px 20px;
  padding: 22px 0;
  border-bottom: 1px solid var(--line-dark);
  color: #f3f3ed;
  text-decoration: none;
}

.upstream-ledger a:hover span {
  color: var(--orange);
}

.upstream-ledger span,
.upstream-ledger strong {
  font-family: var(--mono);
  font-size: 13px;
}

.upstream-ledger strong {
  color: var(--orange);
  text-align: right;
  font-variant-numeric: tabular-nums;
}

.upstream-ledger small {
  grid-column: 1 / -1;
  color: #969992;
  font-size: 12px;
}

#open-source h3 { margin: 36px 0 12px; }
#open-source > p { max-width: 72ch; margin-bottom: 20px; }
#open-source .upstream-ledger > * { color: var(--ink); border-color: var(--line); }
#open-source .upstream-ledger strong { color: var(--orange-dark); }
#open-source .upstream-ledger small { color: var(--muted); }

.network-section {
  padding-block: 112px;
}

.network-grid {
  display: grid;
  grid-template-columns: minmax(0, 0.7fr) minmax(480px, 1.3fr);
  gap: clamp(50px, 8vw, 120px);
}

.network-section h2,
.contact-section h2 {
  font-size: clamp(42px, 5vw, 70px);
}

.network-section > .network-grid > div > p:last-child {
  max-width: 54ch;
  color: var(--muted);
}

.route-ledger {
  border-top: 1px solid var(--line);
}

.route-ledger a {
  display: grid;
  grid-template-columns: 150px 1fr;
  gap: 22px;
  padding: 20px 0;
  border-bottom: 1px solid var(--line);
  text-decoration: none;
}

.route-ledger strong {
  color: var(--orange-dark);
  font-family: var(--mono);
  font-size: 12px;
}

.route-ledger span {
  color: var(--ink-soft);
  font-size: 14px;
}

.route-ledger a:hover span {
  color: var(--orange-dark);
}

.contact-section {
  padding-block: 112px;
  background: var(--paper-bright);
  border-top: 1px solid var(--line);
}

.contact-grid {
  display: grid;
  grid-template-columns: minmax(0, 0.8fr) minmax(460px, 1.2fr);
  gap: clamp(50px, 8vw, 120px);
}

.contact-grid > div p {
  max-width: 55ch;
  color: var(--muted);
}

form,
form label {
  display: flex;
  flex-direction: column;
}

form {
  gap: 18px;
}

.field-row {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 16px;
}

form label {
  gap: 7px;
  color: var(--ink-soft);
  font-family: var(--mono);
  font-size: 11px;
  font-weight: 700;
  text-transform: uppercase;
}

form input,
form textarea {
  width: 100%;
  padding: 12px;
  background: var(--paper);
  border: 1px solid var(--line);
  border-radius: 0;
  color: var(--ink);
  font-family: var(--sans);
  font-size: 15px;
  resize: vertical;
}

form input {
  min-height: 46px;
}

form input::placeholder,
form textarea::placeholder {
  color: #77776f;
  opacity: 1;
}

form input:hover,
form textarea:hover {
  border-color: #7b7b73;
}

form .button {
  align-self: flex-start;
}

form .button:disabled {
  background: #9a9a94;
  border-color: #9a9a94;
  cursor: wait;
}

.honeypot {
  position: absolute;
  left: -10000px;
}

.form-status {
  min-height: 22px;
  margin: 0;
  color: var(--muted);
  font-size: 13px;
}

.form-status[data-state="error"] {
  color: var(--danger);
}

.form-status[data-state="success"] {
  color: var(--success);
}

footer {
  padding-block: 42px;
  background: var(--night);
  color: #d8dad4;
}

.footer-grid {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 34px;
}

.footer-wordmark {
  color: #fff;
  font-family: var(--mono);
  font-size: 14px;
  font-weight: 800;
  text-decoration: none;
}

.footer-grid > div p,
.footer-meta {
  color: #92958e;
  font-size: 12px;
}

.footer-grid nav {
  display: flex;
  flex-wrap: wrap;
  justify-content: flex-end;
  gap: 18px;
}

.footer-grid nav a {
  color: #c5c7c1;
  font-family: var(--mono);
  font-size: 11px;
  text-underline-offset: 3px;
}

.footer-meta {
  grid-column: 1 / -1;
  margin: 0;
  padding-top: 18px;
  border-top: 1px solid var(--line-dark);
  font-family: var(--mono);
}

@media (max-width: 1000px) {
  :root { --shell: min(100% - 40px, 900px); }

  .primary-nav a:not(:last-child) { display: none; }
  .hero { grid-template-columns: 1fr; min-height: 0; }
  .hero-copy h1 { max-width: 11ch; }
  .signal-board { width: min(680px, 100%); }
  .feature { grid-template-columns: 1fr; }
  .split-heading,
  .catalog-heading,
  .upstream-grid,
  .network-grid,
  .contact-grid { grid-template-columns: 1fr; }
  .catalog-heading { gap: 28px; }
  .upstream h2 { max-width: 13ch; }
  .product-grid { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 720px) {
  :root { --shell: calc(100% - 28px); }
  .site-header { position: relative; }
  .header-inner { min-height: 60px; }
  .primary-nav a:last-child { padding: 8px 10px; font-size: 11px; }
  .hero { gap: 46px; padding-block: 64px; }
  .hero-copy h1 { font-size: clamp(52px, 16vw, 76px); }
  .signal-grid a { min-height: 138px; padding: 18px 15px; }
  .signal-heading,
  .signal-source { flex-direction: column; }
  .signal-grid span { font-size: 12px; }
  .trust-grid { grid-template-columns: 1fr 1fr; }
  .trust-grid p:nth-child(2) { border-right: 0; }
  .trust-grid p:nth-child(-n + 2) { border-bottom: 1px solid var(--line); }
  .feature,
  .method-pair,
  .sibling-work,
  .catalog-section,
  .product-strip,
  .upstream,
  .network-section,
  .contact-section { padding-block: 76px; }
  .feature h2,
  .section-heading h2,
  .network-section h2,
  .contact-section h2,
  .upstream h2 { font-size: clamp(38px, 11vw, 54px); }
  .metric-row { grid-template-columns: 1fr; }
  .metric-row div,
  .metric-row div:not(:first-child) { padding: 14px 0; border-right: 0; border-bottom: 1px solid var(--line); }
  .metric-row div:last-child { border-bottom: 0; }
  .paired-panels,
  .sibling-grid,
  .product-grid { grid-template-columns: 1fr; }
  .panel-body p { min-height: 0; }
  .sibling-body { grid-template-columns: 1fr; }
  .sibling-body p { grid-column: auto; }
  .catalog-tools { align-items: stretch; flex-direction: column; }
  .search-control { width: 100%; }
  .catalog-item { grid-template-columns: 1fr; gap: 10px; padding: 24px 0; }
  .item-links { align-items: flex-start; flex-direction: row; flex-wrap: wrap; gap: 16px; text-align: left; }
  .upstream-grid { gap: 50px; }
  .upstream h2 span { font-size: 112px; }
  .route-ledger a { grid-template-columns: 1fr; gap: 6px; }
  .field-row { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr; }
  .footer-grid nav { justify-content: flex-start; }
  .footer-meta { grid-column: auto; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { animation-duration: 0.01ms !important; animation-iteration-count: 1 !important; transition-duration: 0.01ms !important; }
}