:root {
  --ink: #111315;
  --muted: #626a73;
  --soft: #8a929b;
  --paper: #ffffff;
  --mist: #f7f8fa;
  --subtle: #f1f3f5;
  --line: #e3e6ea;
  --blue: #005DAA;
  --blue-dark: #002D62;
  --teal: #566422;
  --gold: #a77a31;
  --rose: #A12D22;
  --max: 1120px;
  --measure: 720px;
  --radius: 8px;
  --space-1: 0.5rem;
  --space-2: 0.75rem;
  --space-3: 1rem;
  --space-4: 1.5rem;
  --space-5: 2.25rem;
  --space-6: 3.25rem;
  --space-7: 5rem;
  --space-8: 7rem;
  --shadow: 0 18px 44px rgba(17, 19, 21, 0.08);
  color-scheme: light;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  color: var(--ink);
  background: var(--paper);
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  font-size: 16px;
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

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

a {
  color: inherit;
}

.skip-link {
  position: absolute;
  left: var(--space-3);
  top: -80px;
  z-index: 1000;
  padding: var(--space-2) var(--space-3);
  color: var(--paper);
  background: var(--ink);
  border-radius: var(--radius);
  text-decoration: none;
}

.skip-link:focus {
  top: var(--space-3);
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  border-bottom: 1px solid rgba(227, 230, 234, 0.82);
  background: rgba(255, 255, 255, 0.88);
  backdrop-filter: blur(20px);
}

.nav-shell {
  width: min(100% - 32px, var(--max));
  min-height: 68px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-4);
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 0.72rem;
  min-width: max-content;
  color: inherit;
  text-decoration: none;
}

.brand-mark {
  width: 34px;
  height: 34px;
  border-radius: 8px;
  display: grid;
  place-items: center;
  color: var(--paper);
  background: var(--ink);
  font-size: 0.82rem;
  font-weight: 800;
  letter-spacing: 0;
}

.brand-text {
  display: grid;
  line-height: 1.08;
}

.brand-name {
  font-size: 0.98rem;
  font-weight: 760;
}

.brand-kicker {
  color: var(--muted);
  font-size: 0.68rem;
  font-weight: 720;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.nav-toggle {
  width: 42px;
  height: 42px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--paper);
  color: var(--ink);
  display: inline-grid;
  place-items: center;
}

.nav-toggle span,
.nav-toggle span::before,
.nav-toggle span::after {
  width: 18px;
  height: 2px;
  display: block;
  content: "";
  background: currentColor;
  transition: transform 180ms ease, opacity 180ms ease;
}

.nav-toggle span::before {
  transform: translateY(-6px);
}

.nav-toggle span::after {
  transform: translateY(4px);
}

.nav-toggle[aria-expanded="true"] span {
  transform: rotate(45deg);
}

.nav-toggle[aria-expanded="true"] span::before {
  transform: translateY(0) rotate(90deg);
}

.nav-toggle[aria-expanded="true"] span::after {
  opacity: 0;
}

.primary-nav {
  position: absolute;
  inset: 68px 0 auto 0;
  display: none;
  border-bottom: 1px solid var(--line);
  background: var(--paper);
  box-shadow: 0 24px 60px rgba(17, 19, 21, 0.1);
}

.primary-nav.is-open {
  display: block;
}

.primary-nav ul {
  width: min(100% - 32px, var(--max));
  margin: 0 auto;
  padding: var(--space-3) 0 var(--space-4);
  list-style: none;
  display: grid;
  gap: 0.25rem;
}

.primary-nav a {
  display: block;
  padding: 0.78rem 0;
  color: var(--muted);
  font-size: 0.95rem;
  font-weight: 680;
  text-decoration: none;
  transition: color 160ms ease, background 160ms ease;
}

.primary-nav a:hover,
.primary-nav a:focus-visible,
.primary-nav a[aria-current="page"] {
  color: var(--ink);
}

.nav-cta {
  color: var(--paper) !important;
  background: var(--ink);
  border-radius: var(--radius);
  padding-inline: var(--space-3) !important;
  text-align: center;
}

.nav-cta:hover,
.nav-cta:focus-visible {
  background: #2b2e32;
}

.container {
  width: min(100% - 32px, var(--max));
  margin: 0 auto;
}

.section {
  padding: var(--space-7) 0;
}

.section.compact {
  padding: var(--space-6) 0;
}

.section.tinted {
  background: var(--mist);
}

.section.dark {
  color: var(--paper);
  background: var(--ink);
}

.eyebrow {
  margin: 0 0 var(--space-2);
  color: var(--blue);
  font-size: 0.72rem;
  font-weight: 760;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.dark .eyebrow {
  color: rgba(255, 255, 255, 0.72);
}

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

h1,
.display {
  max-width: 940px;
  margin-bottom: var(--space-4);
  font-size: clamp(2.25rem, 5vw, 4.35rem);
  line-height: 1.04;
  font-weight: 760;
  letter-spacing: 0;
}

h2 {
  max-width: 760px;
  margin-bottom: var(--space-3);
  font-size: clamp(1.55rem, 3vw, 2.55rem);
  line-height: 1.12;
  font-weight: 740;
  letter-spacing: 0;
}

h3 {
  margin-bottom: var(--space-2);
  font-size: 1.05rem;
  line-height: 1.3;
  font-weight: 720;
}

p {
  max-width: var(--measure);
}

.lead {
  max-width: var(--measure);
  color: var(--muted);
  font-size: clamp(1.03rem, 1.3vw, 1.18rem);
  line-height: 1.68;
}

.dark .lead,
.dark .muted,
.hero .lead,
.page-hero .lead {
  color: rgba(255, 255, 255, 0.76);
}

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

.hero {
  position: relative;
  overflow: hidden;
  min-height: min(760px, calc(100svh - 68px));
  display: grid;
  align-items: end;
  color: var(--paper);
  background:
    linear-gradient(90deg, rgba(10, 12, 15, 0.93), rgba(10, 12, 15, 0.74) 57%, rgba(10, 12, 15, 0.42)),
    var(--ink);
}

.hero::after {
  position: absolute;
  inset: auto 0 0 0;
  height: 28%;
  content: "";
  background: linear-gradient(0deg, rgba(10, 12, 15, 0.36), rgba(10, 12, 15, 0));
}

.hero-content {
  position: relative;
  z-index: 1;
  padding: var(--space-8) 0 var(--space-7);
}

.hero-actions,
.button-row {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-3);
  margin-top: var(--space-5);
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 44px;
  padding: 0.72rem 1.08rem;
  border: 1px solid transparent;
  border-radius: var(--radius);
  font-size: 0.94rem;
  font-weight: 720;
  text-decoration: none;
  transition: transform 160ms ease, background 160ms ease, color 160ms ease, border-color 160ms ease;
}

.button:hover,
.button:focus-visible {
  transform: translateY(-1px);
}

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

.button.primary:hover,
.button.primary:focus-visible {
  background: #2b2e32;
}

.button.secondary {
  color: var(--paper);
  border-color: rgba(255, 255, 255, 0.46);
  background: rgba(255, 255, 255, 0.08);
}

.button.secondary:hover,
.button.secondary:focus-visible {
  border-color: var(--paper);
  background: rgba(255, 255, 255, 0.14);
}

.button.light {
  color: var(--ink);
  border-color: var(--line);
  background: var(--paper);
}

.button.light:hover,
.button.light:focus-visible {
  color: var(--blue);
  border-color: rgba(21, 95, 159, 0.48);
}

.proof-strip {
  display: grid;
  gap: var(--space-3);
  margin-top: var(--space-6);
}

.proof-item {
  padding: var(--space-4);
  border: 1px solid rgba(255, 255, 255, 0.2);
  border-radius: var(--radius);
  background: rgba(255, 255, 255, 0.075);
  backdrop-filter: blur(16px);
}

.proof-value {
  display: block;
  margin-bottom: 0.35rem;
  font-size: 0.98rem;
  font-weight: 760;
}

.proof-label {
  color: rgba(255, 255, 255, 0.74);
  font-size: 0.9rem;
}

.grid {
  display: grid;
  gap: var(--space-4);
}

.grid.two,
.grid.three {
  grid-template-columns: 1fr;
}

.card {
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--paper);
  box-shadow: none;
}

.card-body {
  padding: var(--space-5);
}

.card.link-card {
  min-height: 100%;
  display: flex;
  flex-direction: column;
  color: inherit;
  text-decoration: none;
  transition: transform 160ms ease, box-shadow 160ms ease, border-color 160ms ease;
}

.card.link-card:hover,
.card.link-card:focus-visible {
  border-color: rgba(17, 19, 21, 0.28);
  box-shadow: 0 16px 38px rgba(17, 19, 21, 0.08);
  transform: translateY(-2px);
}

.brand-card-top {
  min-height: 132px;
  padding: var(--space-4);
  display: flex;
  align-items: end;
  color: var(--paper);
  background: var(--ink);
  border-radius: var(--radius) var(--radius) 0 0;
}

.brand-card-top.trxio {
  background: #123f63;
}

.brand-card-top.mortrack {
  background: #5d3440;
}

.brand-card-top.ptiprint {
  background: #1d5552;
}

.brand-card-title {
  font-size: 1.34rem;
  font-weight: 780;
}

.card-footer {
  margin-top: auto;
  padding: 0 var(--space-5) var(--space-5);
  color: var(--blue);
  font-size: 0.94rem;
  font-weight: 720;
}

.split {
  display: grid;
  gap: var(--space-6);
  align-items: center;
}

.visual-panel {
  padding: var(--space-5);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--paper);
  box-shadow: 0 18px 42px rgba(17, 19, 21, 0.06);
}

.system-map {
  display: grid;
  gap: var(--space-3);
}

.system-node {
  padding: var(--space-4);
  border: 1px solid var(--line);
  border-left: 3px solid var(--blue);
  border-radius: var(--radius);
  background: var(--paper);
}

.system-node:nth-child(2) {
  border-left-color: var(--rose);
}

.system-node:nth-child(3) {
  border-left-color: var(--teal);
}

.system-node strong {
  display: block;
  margin-bottom: 0.25rem;
}

.feature-list,
.plain-list {
  margin: var(--space-4) 0 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: var(--space-3);
}

.feature-list li,
.plain-list li {
  position: relative;
  padding-left: 1.6rem;
}

.feature-list li::before,
.plain-list li::before {
  position: absolute;
  left: 0;
  top: 0.68rem;
  width: 0.45rem;
  height: 0.45rem;
  border-radius: 50%;
  content: "";
  background: var(--ink);
}

.plain-list li:nth-child(3n + 2)::before {
  background: var(--teal);
}

.plain-list li:nth-child(3n)::before {
  background: var(--gold);
}

.callout {
  padding: var(--space-5);
  border-radius: var(--radius);
  color: var(--paper);
  background: var(--ink);
}

.callout .button.light {
  margin-top: var(--space-4);
}

.page-hero {
  padding: var(--space-7) 0;
  color: var(--paper);
  background:
    linear-gradient(90deg, rgba(17, 19, 21, 0.92), rgba(17, 19, 21, 0.7)),
    var(--ink);
}

.page-hero h1 {
  max-width: 860px;
  font-size: clamp(2.05rem, 4.2vw, 3.7rem);
}

.product-hero {
  min-height: 520px;
  display: grid;
  align-items: end;
}

.product-hero.trxio-hero {
  background:
    linear-gradient(90deg, rgba(17, 19, 21, 0.92), rgba(18, 63, 99, 0.72)),
    var(--ink);
}

.product-hero.mortrack-hero {
  background:
    linear-gradient(90deg, rgba(17, 19, 21, 0.92), rgba(93, 52, 64, 0.72)),
    var(--ink);
}

.product-hero.ptiprint-hero {
  background:
    linear-gradient(90deg, rgba(17, 19, 21, 0.92), rgba(29, 85, 82, 0.72)),
    var(--ink);
}

.meta-grid {
  display: grid;
  gap: var(--space-3);
  margin-top: var(--space-4);
}

.meta-item {
  padding: var(--space-4);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--paper);
}

.meta-item strong {
  display: block;
}

.process-list {
  counter-reset: step;
  display: grid;
  gap: var(--space-3);
  margin: var(--space-4) 0 0;
  padding: 0;
  list-style: none;
}

.process-list li {
  counter-increment: step;
  padding: var(--space-5);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--paper);
}

.process-list li::before {
  display: inline-grid;
  place-items: center;
  width: 34px;
  height: 34px;
  margin-bottom: var(--space-2);
  border-radius: 50%;
  color: var(--paper);
  background: var(--ink);
  content: counter(step, decimal-leading-zero);
  font-size: 0.78rem;
  font-weight: 820;
}

.contact-panel {
  display: grid;
  gap: var(--space-5);
}

.contact-line {
  padding-bottom: var(--space-3);
  border-bottom: 1px solid var(--line);
}

.contact-line:last-child {
  border-bottom: 0;
}

.contact-line a {
  color: var(--blue);
  font-weight: 700;
  text-decoration: none;
}

.blog-layout {
  display: grid;
  gap: var(--space-4);
}

.blog-card {
  padding: var(--space-5);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--paper);
  transition: border-color 160ms ease, box-shadow 160ms ease, transform 160ms ease;
}

.blog-card:hover {
  border-color: rgba(17, 19, 21, 0.22);
  box-shadow: 0 12px 30px rgba(17, 19, 21, 0.06);
  transform: translateY(-1px);
}

.blog-card h2 {
  margin-bottom: var(--space-2);
  font-size: clamp(1.2rem, 2vw, 1.55rem);
  line-height: 1.22;
}

.blog-card a {
  color: var(--ink);
  text-decoration: none;
}

.blog-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 0.45rem 0.8rem;
  margin-bottom: var(--space-3);
  color: var(--soft);
  font-size: 0.88rem;
}

.blog-source {
  margin-top: var(--space-3);
  overflow-wrap: anywhere;
  color: var(--muted);
  font-size: 0.88rem;
}

.blog-source a {
  color: var(--blue);
}

.post-shell {
  width: min(100% - 36px, 780px);
  margin: 0 auto;
  padding: var(--space-7) 0;
}

.post-header {
  margin-bottom: var(--space-5);
}

.post-header h1 {
  color: var(--ink);
  font-size: clamp(2rem, 4.6vw, 3.6rem);
  line-height: 1.08;
}

.post-featured-image {
  margin: var(--space-5) 0;
  border-radius: var(--radius);
  overflow: hidden;
  border: 1px solid var(--line);
}

.post-featured-image img {
  width: 100%;
}

.post-content {
  color: #202326;
  font-size: 1.05rem;
  line-height: 1.75;
}

.post-content p,
.post-content ul,
.post-content ol,
.post-content blockquote,
.post-content figure {
  margin: 0 0 var(--space-4);
}

.post-content ul,
.post-content ol {
  padding-left: 1.4rem;
}

.post-content li + li {
  margin-top: 0.55rem;
}

.post-content a {
  color: var(--blue);
  font-weight: 680;
}

.post-content img {
  margin: var(--space-4) 0;
  border-radius: var(--radius);
  border: 1px solid var(--line);
}

.post-nav {
  margin-top: var(--space-6);
  padding-top: var(--space-4);
  border-top: 1px solid var(--line);
}

.legal-content {
  max-width: 920px;
  color: #202326;
}

.legal-content h2,
.legal-content h3 {
  margin-top: var(--space-5);
}

.legal-content p,
.legal-content ul,
.legal-content ol {
  margin-bottom: var(--space-3);
}

.legal-content ul,
.legal-content ol {
  padding-left: 1.4rem;
}

.legal-content a,
.tag-card a {
  color: var(--blue);
  font-weight: 680;
}

.archive-actions {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2);
  margin: 0 0 var(--space-5);
}

.tag-grid {
  display: grid;
  gap: var(--space-3);
}

.tag-card {
  padding: var(--space-5);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--paper);
}

.tag-card h2 {
  margin-bottom: var(--space-2);
  font-size: clamp(1.05rem, 1.6vw, 1.32rem);
}

.tag-card ul {
  margin: var(--space-3) 0 0;
  padding-left: 1.2rem;
}

.site-footer {
  color: rgba(255, 255, 255, 0.76);
  background: var(--ink);
}

.footer-grid {
  width: min(100% - 32px, var(--max));
  margin: 0 auto;
  padding: var(--space-6) 0 var(--space-5);
  display: grid;
  gap: var(--space-5);
}

.footer-grid a {
  color: var(--paper);
  text-decoration: none;
}

.footer-grid p {
  color: rgba(255, 255, 255, 0.62);
}

.footer-nav {
  display: grid;
  gap: 0.42rem;
  align-content: start;
}

.footer-bottom {
  border-top: 1px solid rgba(255, 255, 255, 0.12);
  padding: var(--space-3) 0;
}

.footer-bottom .container {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2);
  justify-content: space-between;
  color: rgba(255, 255, 255, 0.58);
  font-size: 0.9rem;
}

@media (min-width: 720px) {
  .proof-strip,
  .grid.three,
  .meta-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .grid.two,
  .split,
  .contact-panel {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .footer-grid {
    grid-template-columns: 1.4fr 1fr 1fr;
  }
}

@media (min-width: 860px) {
  .tag-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (min-width: 980px) {
  .nav-toggle {
    display: none;
  }

  .primary-nav {
    position: static;
    display: block;
    border: 0;
    box-shadow: none;
    background: transparent;
  }

  .primary-nav ul {
    width: auto;
    padding: 0;
    display: flex;
    align-items: center;
    gap: 1.25rem;
  }

  .primary-nav a {
    padding: 0.55rem 0;
  }

  .primary-nav .nav-cta {
    padding-inline: 1rem !important;
  }
}

@media (max-width: 720px) {
  :root {
    --space-7: 4rem;
    --space-8: 5rem;
  }

  .page-hero,
  .product-hero {
    min-height: auto;
  }

  .card-body,
  .visual-panel,
  .blog-card,
  .process-list li,
  .tag-card {
    padding: var(--space-4);
  }
}

@media (max-width: 520px) {
  .hero {
    min-height: auto;
  }

  .hero-content,
  .section,
  .page-hero,
  .post-shell {
    padding-top: var(--space-6);
    padding-bottom: var(--space-6);
  }

  h1,
  .display {
    font-size: clamp(2.05rem, 11vw, 2.9rem);
    line-height: 1.06;
  }

  h2 {
    font-size: clamp(1.45rem, 8vw, 2rem);
  }

  .button,
  .hero-actions,
  .button-row {
    width: 100%;
  }

  .button {
    justify-content: center;
  }
}

/* Phase 5R: senior design rewrite layer */
:root {
  --ink: #101112;
  --charcoal: #17191c;
  --muted: #5f666d;
  --soft: #8e969e;
  --paper: #fbfbfa;
  --white: #ffffff;
  --mist: #f3f4f5;
  --subtle: #eceff1;
  --line: #dedede;
  --blue: #005DAA;
  --teal: #566422;
  --gold: #8f6c37;
  --rose: #A12D22;
  --max: 1160px;
  --measure: 660px;
  --radius: 6px;
  --space-7: 5.75rem;
  --space-8: 8.25rem;
  --shadow: 0 20px 70px rgba(16, 17, 18, 0.08);
}

body {
  background: var(--paper);
  color: var(--ink);
}

.site-header {
  border-bottom-color: rgba(16, 17, 18, 0.08);
  background: rgba(251, 251, 250, 0.86);
}

.brand-mark {
  border-radius: 50%;
  background: var(--charcoal);
  font-size: 0.72rem;
}

.brand-name {
  font-weight: 700;
}

.brand-kicker {
  color: var(--soft);
  font-size: 0.64rem;
  letter-spacing: 0.1em;
}

.primary-nav a {
  color: #666d74;
  font-size: 0.9rem;
  font-weight: 610;
}

.nav-cta {
  border: 1px solid rgba(16, 17, 18, 0.15);
  color: var(--ink) !important;
  background: transparent;
}

.nav-cta:hover,
.nav-cta:focus-visible {
  color: var(--white) !important;
  background: var(--ink);
}

.section {
  position: relative;
  padding: var(--space-7) 0;
}

.section + .section:not(.tinted):not(.dark) {
  border-top: 1px solid rgba(16, 17, 18, 0.06);
}

.eyebrow {
  color: var(--soft);
  font-size: 0.68rem;
  font-weight: 690;
  letter-spacing: 0.14em;
}

h1,
.display {
  max-width: 760px;
  font-size: clamp(2.05rem, 4.2vw, 3.55rem);
  line-height: 1.08;
  font-weight: 690;
}

h2 {
  max-width: 700px;
  font-size: clamp(1.45rem, 2.45vw, 2.28rem);
  line-height: 1.15;
  font-weight: 680;
}

h3 {
  font-size: 0.98rem;
  font-weight: 690;
}

.lead {
  color: var(--muted);
  font-size: clamp(1rem, 1vw, 1.11rem);
  line-height: 1.72;
}

.hero {
  min-height: min(720px, calc(100svh - 68px));
  background:
    linear-gradient(90deg, rgba(16, 17, 18, 0.94), rgba(16, 17, 18, 0.78) 50%, rgba(16, 17, 18, 0.34)),
    var(--ink);
}

.hero-content {
  padding: var(--space-8) 0 var(--space-7);
}

.hero h1 {
  max-width: 735px;
}

.hero .lead {
  max-width: 640px;
}

.hero-actions,
.button-row {
  gap: 0.75rem;
}

.button {
  min-height: 42px;
  padding: 0.68rem 1rem;
  border-radius: 999px;
  font-size: 0.9rem;
  font-weight: 650;
}

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

.button.primary:hover,
.button.primary:focus-visible {
  background: #2a2d30;
}

.hero .button.primary,
.page-hero .button.primary {
  background: var(--white);
  color: var(--ink);
}

.hero .button.primary:hover,
.hero .button.primary:focus-visible,
.page-hero .button.primary:hover,
.page-hero .button.primary:focus-visible {
  background: rgba(255, 255, 255, 0.82);
}

.button.light {
  background: transparent;
}

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

.proof-strip {
  max-width: 880px;
  border-top: 1px solid rgba(255, 255, 255, 0.2);
  padding-top: var(--space-4);
}

.proof-item {
  padding: 0;
  border: 0;
  border-radius: 0;
  background: transparent;
  backdrop-filter: none;
}

.proof-value {
  font-size: 0.92rem;
}

.proof-label {
  font-size: 0.86rem;
}

.page-hero {
  padding: var(--space-8) 0 var(--space-7);
  background:
    linear-gradient(90deg, rgba(16, 17, 18, 0.94), rgba(16, 17, 18, 0.7)),
    var(--ink);
}

.page-hero h1 {
  max-width: 780px;
  font-size: clamp(1.95rem, 3.8vw, 3.25rem);
}

.card,
.blog-card,
.tag-card,
.meta-item,
.process-list li {
  border-color: rgba(16, 17, 18, 0.1);
  background: rgba(255, 255, 255, 0.72);
}

.card-body,
.visual-panel,
.blog-card,
.tag-card {
  padding: clamp(1.25rem, 2.5vw, 2rem);
}

.visual-panel {
  box-shadow: none;
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.92), rgba(247, 248, 250, 0.78));
}

.ecosystem-section {
  background: var(--paper);
}

.ecosystem-section > .container > .lead {
  margin-bottom: var(--space-5);
}

.ecosystem-section .grid.three {
  display: block;
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}

.ecosystem-section .link-card {
  min-height: 0;
  display: grid;
  grid-template-columns: 160px minmax(0, 1fr) auto;
  gap: var(--space-4);
  align-items: center;
  border: 0;
  border-bottom: 1px solid var(--line);
  border-radius: 0;
  background: transparent;
}

.ecosystem-section .link-card:last-child {
  border-bottom: 0;
}

.ecosystem-section .link-card:hover,
.ecosystem-section .link-card:focus-visible {
  box-shadow: none;
  transform: none;
  background: rgba(255, 255, 255, 0.64);
}

.ecosystem-section .brand-card-top {
  min-height: 0;
  padding: var(--space-5) 0 var(--space-5) var(--space-3);
  align-items: center;
  color: var(--ink);
  background: transparent;
  border-radius: 0;
}

.ecosystem-section .brand-card-top.trxio .brand-card-title {
  color: var(--blue);
}

.ecosystem-section .brand-card-top.mortrack .brand-card-title {
  color: var(--rose);
}

.ecosystem-section .brand-card-top.ptiprint .brand-card-title {
  color: var(--teal);
}

.ecosystem-section .brand-card-title {
  font-size: 1.05rem;
  font-weight: 720;
}

.ecosystem-section .card-body {
  padding: var(--space-5) 0;
}

.ecosystem-section .card-body h3 {
  margin-bottom: 0.35rem;
  font-size: clamp(1.05rem, 1.6vw, 1.35rem);
}

.ecosystem-section .card-body p {
  margin-bottom: 0;
  color: var(--muted);
}

.ecosystem-section .card-footer {
  padding: 0 var(--space-3) 0 0;
  color: var(--soft);
  font-size: 0.84rem;
}

.system-section .visual-panel {
  position: relative;
  padding-left: var(--space-6);
}

.system-section .visual-panel::before,
.thesis-section .split > div:first-child::before,
.hardware-section .split > div:first-child::before {
  display: block;
  width: 42px;
  height: 1px;
  margin-bottom: var(--space-4);
  content: "";
  background: var(--ink);
}

.system-map {
  gap: 0;
}

.system-node {
  position: relative;
  padding: var(--space-4) 0 var(--space-4) var(--space-4);
  border: 0;
  border-left: 1px solid var(--line);
  border-radius: 0;
  background: transparent;
}

.system-node::before {
  position: absolute;
  left: -4px;
  top: 1.8rem;
  width: 7px;
  height: 7px;
  border-radius: 50%;
  content: "";
  background: var(--ink);
}

.signal-section .grid.three,
.capability-section .grid.three,
.product-detail-section .grid.three {
  gap: 0;
  border-top: 1px solid currentColor;
  border-color: rgba(16, 17, 18, 0.12);
}

.signal-section .grid.three > div,
.capability-section .card,
.product-detail-section .card {
  border: 0;
  border-bottom: 1px solid rgba(16, 17, 18, 0.12);
  border-radius: 0;
  background: transparent;
}

.signal-section .grid.three > div {
  padding: var(--space-4) 0;
}

.dark.signal-section .grid.three {
  border-color: rgba(255, 255, 255, 0.18);
}

.dark.signal-section .grid.three > div {
  border-bottom: 1px solid rgba(255, 255, 255, 0.18);
}

.capability-section .card-body,
.product-detail-section .card-body {
  padding-left: 0;
  padding-right: var(--space-5);
}

.product-hero {
  min-height: 500px;
}

.product-hero.trxio-hero,
.product-hero.mortrack-hero,
.product-hero.ptiprint-hero {
  background:
    linear-gradient(90deg, rgba(16, 17, 18, 0.94), rgba(16, 17, 18, 0.66)),
    var(--ink);
}

.trxio-hero .eyebrow {
  color: #b7d5ec;
}

.mortrack-hero .eyebrow {
  color: #e4c1c9;
}

.ptiprint-hero .eyebrow {
  color: #bbddd8;
}

.contact-section .card {
  box-shadow: none;
}

.blog-layout {
  gap: 0;
  border-top: 1px solid var(--line);
}

.blog-card {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: var(--space-2);
  border: 0;
  border-bottom: 1px solid var(--line);
  border-radius: 0;
  background: transparent;
}

.blog-card:hover {
  box-shadow: none;
  transform: none;
  background: rgba(255, 255, 255, 0.58);
}

.blog-card h2 {
  max-width: 760px;
}

.post-shell {
  width: min(100% - 36px, 740px);
}

.post-header h1 {
  font-size: clamp(1.9rem, 3.8vw, 3.1rem);
  font-weight: 690;
}

.post-content {
  font-size: 1.03rem;
  line-height: 1.78;
}

.tag-grid {
  gap: 0;
  border-top: 1px solid var(--line);
}

.tag-card {
  border: 0;
  border-bottom: 1px solid var(--line);
  border-radius: 0;
  background: transparent;
}

.tag-card h2 {
  color: var(--ink);
}

.legal-content {
  max-width: 820px;
  font-size: 1rem;
  line-height: 1.74;
}

.site-footer {
  background: #0f1011;
}

.footer-grid {
  padding-top: var(--space-7);
}

.footer-nav a {
  color: rgba(255, 255, 255, 0.72);
  font-size: 0.92rem;
}

.footer-nav a:hover,
.footer-nav a:focus-visible {
  color: var(--white);
}

@media (min-width: 720px) {
  .hero-content {
    display: grid;
    grid-template-columns: minmax(0, 1fr) 310px;
    gap: var(--space-6);
    align-items: end;
  }

  .hero-content .eyebrow,
  .hero-content h1,
  .hero-content .lead,
  .hero-actions {
    grid-column: 1;
  }

  .proof-strip {
    grid-column: 2;
    grid-row: 1 / span 4;
    align-self: end;
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--space-4);
    margin-top: 0;
    border-top: 0;
    border-left: 1px solid rgba(255, 255, 255, 0.22);
    padding-top: 0;
    padding-left: var(--space-4);
  }

  .signal-section .grid.three,
  .capability-section .grid.three,
  .product-detail-section .grid.three {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    border-bottom: 1px solid rgba(16, 17, 18, 0.12);
  }

  .signal-section .grid.three > div,
  .capability-section .card,
  .product-detail-section .card {
    border-bottom: 0;
    border-right: 1px solid rgba(16, 17, 18, 0.12);
  }

  .signal-section .grid.three > div:last-child,
  .capability-section .card:last-child,
  .product-detail-section .card:last-child {
    border-right: 0;
  }

  .dark.signal-section .grid.three > div {
    border-right: 1px solid rgba(255, 255, 255, 0.18);
    border-bottom: 0;
  }

  .dark.signal-section .grid.three > div:last-child {
    border-right: 0;
  }

  .blog-card {
    grid-template-columns: 210px minmax(0, 1fr);
    column-gap: var(--space-5);
  }

  .blog-card h2,
  .blog-card > p:not(.blog-source) {
    grid-column: 2;
  }

  .blog-meta,
  .blog-source {
    grid-column: 1;
    grid-row: span 2;
  }
}

@media (min-width: 980px) {
  .section {
    padding-top: var(--space-8);
    padding-bottom: var(--space-8);
  }

  .page-hero {
    padding-top: var(--space-8);
    padding-bottom: var(--space-8);
  }
}

@media (max-width: 720px) {
  :root {
    --space-7: 4.25rem;
    --space-8: 5.25rem;
  }

  .ecosystem-section .link-card {
    display: block;
  }

  .ecosystem-section .brand-card-top,
  .ecosystem-section .card-body,
  .ecosystem-section .card-footer {
    padding: var(--space-3) 0;
  }

  .ecosystem-section .card-footer {
    padding-top: 0;
  }
}

@media (max-width: 520px) {
  h1,
  .display {
    font-size: clamp(1.95rem, 9.2vw, 2.55rem);
  }

  .page-hero h1,
  .post-header h1 {
    font-size: clamp(1.85rem, 8.4vw, 2.45rem);
  }

  .button,
  .hero-actions,
  .button-row {
    width: auto;
  }

  .hero-actions,
  .button-row {
    align-items: flex-start;
  }
}

/* Phase 6: visual QA consistency layer */
:root {
  --container-wide: 1160px;
  --container-standard: 1040px;
  --container-reading: 740px;
  --section-y: clamp(4.75rem, 7vw, 7.25rem);
  --section-y-tight: clamp(3.25rem, 5vw, 4.75rem);
  --section-y-hero: clamp(5.25rem, 8vw, 7.5rem);
  --gap-xs: 0.5rem;
  --gap-sm: 0.85rem;
  --gap-md: 1.35rem;
  --gap-lg: 2rem;
  --gap-xl: 3rem;
  --button-radius: 999px;
  --surface: rgba(255, 255, 255, 0.72);
  --surface-solid: #ffffff;
  --focus-ring: 0 0 0 3px rgba(0, 93, 170, 0.22);
}

.container,
.nav-shell,
.footer-grid,
.footer-bottom .container {
  width: min(100% - clamp(2rem, 5vw, 4.5rem), var(--container-wide));
}

.section {
  padding: var(--section-y) 0;
}

.section.compact,
.product-detail-section,
.contact-section {
  padding: var(--section-y-tight) 0;
}

.page-hero {
  padding: var(--section-y-hero) 0 var(--section-y);
}

.hero-content {
  padding: var(--section-y-hero) 0 var(--section-y);
}

.section > .container > .eyebrow,
.page-hero .eyebrow,
.hero .eyebrow {
  margin-bottom: var(--gap-sm);
}

h1,
.display {
  max-width: 780px;
  font-size: clamp(2rem, 3.8vw, 3.35rem);
  letter-spacing: 0;
}

.page-hero h1,
.post-header h1 {
  max-width: 820px;
  font-size: clamp(1.95rem, 3.35vw, 3rem);
}

h2 {
  max-width: 720px;
  font-size: clamp(1.42rem, 2.2vw, 2.08rem);
}

h3 {
  line-height: 1.28;
}

.lead {
  max-width: var(--container-reading);
  font-size: clamp(1rem, 0.95vw, 1.08rem);
}

p + .button,
p + .button-row,
p + .hero-actions,
.lead + .button-row,
.lead + .hero-actions {
  margin-top: var(--gap-lg);
}

.button {
  min-height: 44px;
  gap: 0.45rem;
  padding: 0.72rem 1.12rem;
  border-radius: var(--button-radius);
  font-size: 0.9rem;
  line-height: 1;
  text-decoration: none;
  transition:
    background-color 160ms ease,
    border-color 160ms ease,
    color 160ms ease,
    transform 160ms ease,
    box-shadow 160ms ease;
}

.button:hover,
.button:focus-visible {
  transform: translateY(-1px);
}

.button:focus-visible {
  outline: 0;
  box-shadow: var(--focus-ring);
}

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

.button.primary:hover,
.button.primary:focus-visible {
  border-color: #2a2d30;
  background: #2a2d30;
  color: var(--white);
}

.button.secondary,
.button.light {
  border-color: rgba(16, 17, 18, 0.18);
  background: transparent;
  color: var(--ink);
}

.button.secondary:hover,
.button.secondary:focus-visible,
.button.light:hover,
.button.light:focus-visible {
  border-color: rgba(16, 17, 18, 0.42);
  background: rgba(255, 255, 255, 0.74);
  color: var(--ink);
}

.hero .button.primary,
.page-hero .button.primary,
.dark .button.primary {
  border-color: var(--white);
  background: var(--white);
  color: var(--ink);
}

.hero .button.secondary,
.page-hero .button.secondary,
.dark .button.secondary,
.callout .button.light {
  border-color: rgba(255, 255, 255, 0.54);
  background: transparent;
  color: var(--white);
}

.hero .button.secondary:hover,
.hero .button.secondary:focus-visible,
.page-hero .button.secondary:hover,
.page-hero .button.secondary:focus-visible,
.dark .button.secondary:hover,
.dark .button.secondary:focus-visible,
.callout .button.light:hover,
.callout .button.light:focus-visible {
  border-color: var(--white);
  background: var(--white);
  color: var(--ink);
}

.hero-actions,
.button-row,
.archive-actions {
  gap: var(--gap-sm);
  margin-top: var(--gap-lg);
}

.archive-actions {
  align-items: center;
}

.archive-actions .button {
  min-height: 42px;
  padding-inline: 1rem;
}

.card,
.visual-panel,
.meta-item,
.process-list li,
.contact-panel address {
  border-color: rgba(16, 17, 18, 0.12);
  border-radius: var(--radius);
  background: var(--surface);
}

.card-body,
.visual-panel,
.meta-item,
.process-list li,
.contact-panel address {
  padding: clamp(1.35rem, 2.1vw, 1.9rem);
}

.split,
.grid,
.meta-grid,
.contact-panel {
  gap: clamp(1.5rem, 3vw, 3rem);
}

.callout {
  overflow: hidden;
  padding: clamp(2rem, 4vw, 3.4rem);
  border-radius: var(--radius);
}

.callout h2 {
  max-width: 760px;
  font-size: clamp(1.55rem, 2.8vw, 2.5rem);
}

.callout p {
  max-width: 760px;
  color: rgba(255, 255, 255, 0.76);
}

.product-detail-section .container > h2,
.capability-section .container > h2 {
  margin-bottom: var(--gap-xl);
}

.product-detail-section .grid.three,
.capability-section .grid.three,
.signal-section .grid.three {
  align-items: stretch;
}

.product-detail-section .card-body,
.capability-section .card-body {
  min-height: 100%;
  padding: clamp(1.55rem, 2.8vw, 2.4rem);
}

.product-detail-section .card-body p,
.capability-section .card-body p,
.signal-section .grid.three p {
  max-width: 34rem;
}

.ecosystem-section .link-card {
  grid-template-columns: 145px minmax(0, 1fr) minmax(92px, auto);
}

.ecosystem-section .brand-card-top,
.ecosystem-section .card-body {
  padding-top: clamp(1.35rem, 2.6vw, 2.25rem);
  padding-bottom: clamp(1.35rem, 2.6vw, 2.25rem);
}

.blog-layout {
  width: min(100% - clamp(2rem, 5vw, 4.5rem), var(--container-standard));
  border-top: 1px solid var(--line);
}

.container > .blog-layout {
  width: 100%;
}

.archive-actions + .blog-layout,
.archive-actions + .tag-grid {
  margin-top: var(--gap-xl);
}

.section:has(.blog-layout),
.section:has(.tag-grid) {
  padding-top: clamp(2rem, 4vw, 3.25rem);
}

.section.compact:has(.archive-actions) {
  padding-bottom: clamp(1.75rem, 3vw, 2.5rem);
}

.blog-card {
  padding: clamp(1.75rem, 3.2vw, 2.75rem) 0;
  background: transparent;
}

.blog-card h2 {
  margin-bottom: var(--gap-md);
  font-size: clamp(1.22rem, 1.8vw, 1.75rem);
  line-height: 1.22;
}

.blog-card > p {
  margin-bottom: var(--gap-md);
}

.blog-card .button.light {
  min-height: 38px;
  padding: 0.58rem 0.9rem;
  font-size: 0.84rem;
}

.blog-meta {
  align-content: start;
  gap: 0.35rem;
  color: var(--soft);
  font-size: 0.83rem;
  line-height: 1.45;
}

.blog-source {
  display: block;
  max-width: 100%;
  margin-top: 0;
  padding-top: var(--gap-sm);
  border-top: 1px solid rgba(16, 17, 18, 0.08);
  color: var(--muted);
  font-size: 0.78rem;
  line-height: 1.55;
}

.blog-source a {
  display: inline;
  color: #365f80;
  overflow-wrap: anywhere;
  word-break: break-word;
}

.tag-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 0;
  border-top: 1px solid var(--line);
}

.tag-card {
  padding: clamp(1.1rem, 2vw, 1.6rem) 0;
}

.tag-card h2 {
  margin-bottom: var(--gap-sm);
  font-size: clamp(1rem, 1.3vw, 1.2rem);
  overflow-wrap: anywhere;
}

.tag-card ul {
  margin-top: var(--gap-sm);
  padding-left: 1.1rem;
}

.post-shell {
  width: min(100% - clamp(2rem, 6vw, 4rem), var(--container-reading));
}

.post-header,
.post-content,
.post-nav {
  max-width: var(--container-reading);
}

.post-content {
  font-size: clamp(1rem, 1vw, 1.06rem);
  line-height: 1.78;
}

.post-content h2,
.post-content h3 {
  margin-top: 2.4em;
}

.site-footer {
  margin-top: 0;
}

.footer-grid {
  gap: var(--gap-xl);
}

@media (min-width: 720px) {
  .blog-card {
    grid-template-columns: 155px minmax(0, 1fr);
    column-gap: clamp(2rem, 4vw, 3.5rem);
  }

  .blog-meta {
    grid-column: 1;
    grid-row: 1 / span 4;
  }

  .blog-card h2,
  .blog-card > p,
  .blog-source {
    grid-column: 2;
    grid-row: auto;
  }

  .tag-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    column-gap: clamp(2rem, 4vw, 3rem);
  }

  .tag-card:nth-child(odd) {
    padding-right: clamp(1rem, 2vw, 1.5rem);
    border-right: 1px solid rgba(16, 17, 18, 0.08);
  }

  .tag-card:nth-child(even) {
    padding-left: clamp(1rem, 2vw, 1.5rem);
  }
}

@media (min-width: 980px) {
  .product-detail-section .grid.three,
  .capability-section .grid.three,
  .signal-section .grid.three {
    border-bottom: 1px solid rgba(16, 17, 18, 0.12);
  }

  .dark.signal-section .grid.three {
    border-bottom-color: rgba(255, 255, 255, 0.18);
  }
}

@media (max-width: 720px) {
  :root {
    --section-y: clamp(3.5rem, 12vw, 4.5rem);
    --section-y-tight: clamp(2.75rem, 10vw, 3.75rem);
    --section-y-hero: clamp(4rem, 13vw, 5rem);
  }

  .container,
  .nav-shell,
  .footer-grid,
  .footer-bottom .container,
  .blog-layout,
  .post-shell {
    width: min(100% - 2rem, var(--container-wide));
  }

  .hero {
    min-height: auto;
  }

  .hero-actions,
  .button-row,
  .archive-actions {
    width: 100%;
    align-items: flex-start;
  }

  .button {
    min-height: 44px;
  }

  .archive-actions .button {
    min-height: 40px;
  }

  .callout {
    padding: 1.5rem;
  }

  .product-detail-section .grid.three,
  .capability-section .grid.three,
  .signal-section .grid.three {
    border-bottom: 1px solid rgba(16, 17, 18, 0.12);
  }

  .dark.signal-section .grid.three {
    border-bottom-color: rgba(255, 255, 255, 0.18);
  }
}

@media (max-width: 520px) {
  h1,
  .display {
    font-size: clamp(1.85rem, 8.4vw, 2.35rem);
  }

  .page-hero h1,
  .post-header h1 {
    font-size: clamp(1.75rem, 7.6vw, 2.25rem);
  }

  h2 {
    font-size: clamp(1.28rem, 6vw, 1.72rem);
  }

  .blog-card {
    padding: 1.55rem 0;
  }

  .blog-source {
    font-size: 0.74rem;
  }
}

/* Targeted QA fix: give dense signal sections enough reading room. */
.signal-section .lead {
  margin-bottom: clamp(2rem, 4vw, 3rem);
}

.signal-section .grid.three > div {
  padding-top: clamp(1.75rem, 3vw, 2.65rem);
  padding-bottom: clamp(1.75rem, 3vw, 2.65rem);
}

@media (min-width: 720px) {
  .signal-section .grid.three > div {
    padding-left: clamp(1.5rem, 2.5vw, 2.35rem);
    padding-right: clamp(1.5rem, 2.5vw, 2.35rem);
  }

  .signal-section .grid.three > div:first-child {
    padding-left: 0;
  }

  .signal-section .grid.three > div:last-child {
    padding-right: 0;
  }
}

@media (max-width: 720px) {
  .signal-section .lead {
    margin-bottom: 1.6rem;
  }
}

/* Targeted QA fix: keep the homepage hero composed above the fold on laptop viewports. */
.hero {
  min-height: min(650px, calc(100svh - 86px));
  align-items: center;
}

.hero-content {
  padding-top: clamp(3rem, 6vh, 4.6rem);
  padding-bottom: clamp(2.6rem, 5vh, 4rem);
}

.hero h1 {
  max-width: 690px;
  font-size: clamp(2.05rem, 3.75vw, 3.05rem);
  line-height: 1.08;
}

.hero .lead {
  max-width: 620px;
  font-size: clamp(0.98rem, 0.95vw, 1.05rem);
  line-height: 1.65;
}

.hero-actions {
  margin-top: clamp(1.35rem, 2.4vw, 2rem);
}

@media (min-width: 720px) {
  .hero-content {
    grid-template-columns: minmax(0, 0.95fr) 285px;
    gap: clamp(2rem, 4vw, 4rem);
    align-items: center;
  }

  .proof-strip {
    align-self: center;
    gap: clamp(1.1rem, 2vw, 1.6rem);
  }

  .proof-value {
    font-size: 0.88rem;
  }

  .proof-label {
    font-size: 0.82rem;
    line-height: 1.55;
  }
}

@media (max-width: 900px) {
  .hero {
    min-height: auto;
  }
}

/* Targeted QA fix: compact homepage hero into a true above-the-fold composition. */
.hero {
  min-height: clamp(500px, 62svh, 620px);
}

.hero-content {
  padding-top: clamp(2.4rem, 5vh, 3.6rem);
  padding-bottom: clamp(2.2rem, 4.4vh, 3.4rem);
}

.hero h1 {
  max-width: 820px;
  font-size: clamp(2rem, 3.35vw, 2.8rem);
  line-height: 1.06;
}

.hero .lead {
  max-width: 720px;
  margin-top: 0;
  line-height: 1.58;
}

.hero-actions {
  margin-top: 0.65rem;
}

@media (min-width: 720px) {
  .hero-content {
    grid-template-columns: minmax(0, 1fr) 270px;
    column-gap: clamp(2rem, 4vw, 4.25rem);
    row-gap: clamp(0.72rem, 1.5vh, 1.05rem);
  }

  .hero-content .eyebrow {
    margin-bottom: 0;
  }

  .proof-strip {
    gap: clamp(0.9rem, 1.7vh, 1.25rem);
  }
}

@media (max-width: 720px) {
  .hero {
    min-height: auto;
  }

  .hero-content {
    padding-top: 4rem;
    padding-bottom: 3.75rem;
  }
}

/* Targeted redesign: premium Cairnstack ecosystem showcase. */
.ecosystem-section {
  background: #f7f7f5;
}

.ecosystem-intro {
  display: grid;
  gap: clamp(0.72rem, 1.5vw, 1.05rem);
  align-items: start;
  margin-bottom: clamp(2rem, 4.2vw, 3.25rem);
}

.ecosystem-intro h2 {
  max-width: 860px;
}

.ecosystem-intro .lead {
  max-width: 760px;
  margin: 0;
}

.section-intro,
.section-intro--stacked {
  max-width: min(920px, 100%);
}

.section-intro > div {
  display: grid;
  gap: clamp(0.55rem, 1.1vw, 0.8rem);
}

.platform-showcase {
  display: grid;
  gap: clamp(0.85rem, 1.5vw, 1.15rem);
}

.platform-stack {
  display: grid;
  gap: clamp(0.85rem, 1.5vw, 1.15rem);
}

.platform-panel {
  position: relative;
  min-height: 100%;
  display: grid;
  gap: clamp(1.1rem, 2vw, 1.55rem);
  align-content: space-between;
  padding: clamp(1.35rem, 3vw, 2.35rem);
  border: 1px solid rgba(16, 17, 18, 0.11);
  border-radius: 6px;
  color: var(--ink);
  text-decoration: none;
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.82), rgba(255, 255, 255, 0.56));
  transition:
    border-color 180ms ease,
    background-color 180ms ease,
    transform 180ms ease;
}

.platform-panel::before {
  position: absolute;
  top: clamp(1.35rem, 3vw, 2.35rem);
  left: clamp(1.35rem, 3vw, 2.35rem);
  width: 34px;
  height: 2px;
  content: "";
  background: var(--blue);
}

.platform-panel.mortrack::before {
  background: var(--rose);
}

.platform-panel.ptiprint::before {
  background: var(--teal);
}

.platform-panel:hover,
.platform-panel:focus-visible {
  border-color: rgba(16, 17, 18, 0.24);
  background: rgba(255, 255, 255, 0.88);
  transform: translateY(-2px);
  outline: 0;
}

.platform-panel:focus-visible {
  box-shadow: var(--focus-ring);
}

.platform-brand {
  display: block;
  padding-top: clamp(1.05rem, 2vw, 1.35rem);
  color: var(--blue);
  font-size: clamp(1.35rem, 2.6vw, 2.2rem);
  font-weight: 720;
  letter-spacing: 0;
}

.platform-panel.mortrack .platform-brand {
  color: var(--rose);
}

.platform-panel.ptiprint .platform-brand {
  color: var(--teal);
}

.platform-panel h3 {
  max-width: 30rem;
  margin-bottom: 0.55rem;
  font-size: clamp(1rem, 1.35vw, 1.18rem);
}

.platform-panel p {
  max-width: 34rem;
  margin: 0;
  color: var(--muted);
  line-height: 1.68;
}

.platform-link {
  display: inline-flex;
  width: fit-content;
  align-items: center;
  gap: 0.35rem;
  color: var(--ink);
  font-size: 0.88rem;
  font-weight: 700;
}

.platform-feature {
  min-height: clamp(320px, 34vw, 430px);
  padding: clamp(1.65rem, 3.8vw, 3rem);
}

.platform-feature::before {
  top: clamp(1.65rem, 3.8vw, 3rem);
  left: clamp(1.65rem, 3.8vw, 3rem);
}

.platform-feature .platform-brand {
  font-size: clamp(1.7rem, 4vw, 3rem);
}

.platform-feature h3 {
  font-size: clamp(1.15rem, 1.8vw, 1.45rem);
}

@media (min-width: 780px) {
  .platform-showcase {
    grid-template-columns: minmax(0, 1.15fr) minmax(310px, 0.85fr);
    align-items: stretch;
  }
}

@media (max-width: 779px) {
  .platform-feature {
    min-height: auto;
  }

  .platform-panel {
    gap: 1rem;
  }
}

@media (max-width: 430px) {
  .ecosystem-intro {
    margin-bottom: 1.75rem;
  }

  .platform-panel,
  .platform-feature {
    padding: 1.2rem;
  }

  .platform-panel::before,
  .platform-feature::before {
    top: 1.2rem;
    left: 1.2rem;
  }

  .platform-brand {
    padding-top: 1rem;
    font-size: 1.35rem;
  }
}

/* Platform Command Center refinement */
.ecosystem-section {
  overflow: hidden;
  background:
    radial-gradient(circle at 18% 12%, rgba(0, 93, 170, 0.06), transparent 28rem),
    radial-gradient(circle at 82% 78%, rgba(86, 100, 34, 0.055), transparent 24rem),
    linear-gradient(180deg, #fbfaf7 0%, #f4f2ee 100%);
}

.ecosystem-section::before {
  position: absolute;
  inset: 7rem max(1rem, calc((100vw - var(--container-wide)) / 2)) auto;
  height: min(34vw, 390px);
  pointer-events: none;
  content: "";
  opacity: 0.42;
  background:
    radial-gradient(circle at 17% 28%, rgba(0, 93, 170, 0.34) 0 2px, transparent 3px),
    radial-gradient(circle at 48% 54%, rgba(143, 108, 55, 0.28) 0 2px, transparent 3px),
    radial-gradient(circle at 76% 35%, rgba(86, 100, 34, 0.32) 0 2px, transparent 3px),
    linear-gradient(113deg, transparent 17%, rgba(16, 17, 18, 0.08) 17.1%, rgba(16, 17, 18, 0.08) 17.35%, transparent 17.45%),
    linear-gradient(156deg, transparent 39%, rgba(16, 17, 18, 0.07) 39.1%, rgba(16, 17, 18, 0.07) 39.35%, transparent 39.45%),
    linear-gradient(31deg, transparent 58%, rgba(16, 17, 18, 0.06) 58.1%, rgba(16, 17, 18, 0.06) 58.35%, transparent 58.45%);
}

.ecosystem-section > .container {
  position: relative;
  z-index: 1;
}

.ecosystem-intro {
  max-width: 1060px;
}

.ecosystem-intro h2 {
  font-size: clamp(1.55rem, 2.7vw, 2.45rem);
}

.platform-showcase {
  position: relative;
  gap: clamp(1rem, 2vw, 1.4rem);
}

.platform-showcase::before {
  position: absolute;
  inset: 12% 18% 14% 28%;
  z-index: -1;
  border: 1px solid rgba(16, 17, 18, 0.06);
  border-radius: 999px;
  content: "";
  filter: blur(0.2px);
  transform: rotate(-8deg);
}

.platform-stack {
  gap: clamp(1rem, 2vw, 1.4rem);
}

.platform-panel {
  isolation: isolate;
  overflow: hidden;
  gap: clamp(0.9rem, 1.8vw, 1.35rem);
  border-color: rgba(16, 17, 18, 0.095);
  border-radius: 14px;
  background:
    linear-gradient(145deg, rgba(255, 255, 255, 0.92), rgba(248, 247, 243, 0.76)),
    rgba(255, 255, 255, 0.84);
  box-shadow:
    0 1px 0 rgba(255, 255, 255, 0.85) inset,
    0 22px 70px rgba(16, 17, 18, 0.075);
  transform: translateY(14px);
  opacity: 0;
  transition:
    opacity 520ms ease,
    transform 520ms cubic-bezier(0.2, 0.8, 0.2, 1),
    border-color 180ms ease,
    box-shadow 180ms ease,
    background-color 180ms ease;
}

.platform-panel.is-visible {
  transform: translateY(0);
  opacity: 1;
}

.platform-panel::before {
  z-index: 2;
  width: 40px;
  height: 3px;
  border-radius: 999px;
  box-shadow: 0 0 24px rgba(0, 93, 170, 0.16);
}

.platform-panel::after {
  position: absolute;
  inset: 0;
  z-index: -1;
  pointer-events: none;
  content: "";
  opacity: 0.5;
  background:
    linear-gradient(120deg, rgba(255, 255, 255, 0.7), transparent 34%),
    radial-gradient(circle at 86% 18%, rgba(0, 93, 170, 0.08), transparent 15rem);
  transition: opacity 180ms ease;
}

.platform-panel.mortrack::after {
  background:
    linear-gradient(120deg, rgba(255, 255, 255, 0.72), transparent 36%),
    radial-gradient(circle at 84% 12%, rgba(161, 45, 34, 0.09), transparent 13rem);
}

.platform-panel.ptiprint::after {
  background:
    linear-gradient(120deg, rgba(255, 255, 255, 0.72), transparent 36%),
    radial-gradient(circle at 86% 16%, rgba(86, 100, 34, 0.09), transparent 13rem);
}

.platform-panel:hover,
.platform-panel:focus-visible {
  transform: translateY(-4px);
  box-shadow:
    0 1px 0 rgba(255, 255, 255, 0.92) inset,
    0 28px 80px rgba(16, 17, 18, 0.105);
}

.platform-panel.trxio:hover,
.platform-panel.trxio:focus-visible {
  border-color: rgba(0, 93, 170, 0.38);
}

.platform-panel.mortrack:hover,
.platform-panel.mortrack:focus-visible {
  border-color: rgba(161, 45, 34, 0.38);
}

.platform-panel.ptiprint:hover,
.platform-panel.ptiprint:focus-visible {
  border-color: rgba(86, 100, 34, 0.38);
}

.platform-panel:hover::after,
.platform-panel:focus-visible::after {
  opacity: 0.82;
}

.platform-feature {
  min-height: clamp(310px, 31vw, 390px);
}

.platform-brand,
.platform-panel h3,
.platform-panel p,
.platform-chips,
.platform-link {
  position: relative;
  z-index: 3;
}

.platform-brand {
  padding-top: clamp(0.95rem, 1.8vw, 1.2rem);
  font-size: clamp(1.35rem, 2.2vw, 2.35rem);
}

.platform-feature .platform-brand {
  font-size: clamp(1.65rem, 3.2vw, 2.8rem);
}

.platform-panel h3 {
  margin-bottom: 0.48rem;
}

.platform-panel p {
  max-width: 31rem;
  line-height: 1.62;
}

.platform-chips {
  display: flex;
  flex-wrap: wrap;
  gap: 0.45rem;
  margin-top: -0.2rem;
}

.platform-chips span {
  min-height: 28px;
  display: inline-flex;
  align-items: center;
  padding: 0.32rem 0.56rem;
  border: 1px solid rgba(16, 17, 18, 0.09);
  border-radius: 999px;
  color: rgba(16, 17, 18, 0.68);
  background: rgba(255, 255, 255, 0.58);
  font-size: 0.72rem;
  font-weight: 690;
}

.platform-link {
  margin-top: 0.2rem;
  transition: color 180ms ease;
}

.platform-link span {
  display: inline-block;
  transition: transform 180ms ease;
}

.platform-panel:hover .platform-link span,
.platform-panel:focus-visible .platform-link span {
  transform: translateX(5px);
}

.platform-visual {
  position: absolute;
  inset: auto 1rem 1rem auto;
  z-index: 1;
  width: min(44%, 250px);
  aspect-ratio: 1.25;
  pointer-events: none;
  opacity: 0.45;
  transition: opacity 180ms ease, transform 180ms ease;
}

.platform-panel:hover .platform-visual,
.platform-panel:focus-visible .platform-visual {
  opacity: 0.72;
  transform: translateY(-2px);
}

.trxio-visual {
  bottom: 1.15rem;
  right: 1.2rem;
}

.flow-line {
  position: absolute;
  left: 10%;
  right: 8%;
  height: 1px;
  background: linear-gradient(90deg, transparent, rgba(0, 93, 170, 0.68), transparent);
}

.flow-line.line-one {
  top: 34%;
  transform: rotate(-10deg);
}

.flow-line.line-two {
  top: 62%;
  transform: rotate(12deg);
}

.flow-node,
.route-dot {
  position: absolute;
  width: 9px;
  height: 9px;
  border: 2px solid rgba(0, 93, 170, 0.58);
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.86);
}

.flow-node.node-one {
  left: 18%;
  top: 28%;
}

.flow-node.node-two {
  left: 53%;
  top: 52%;
}

.flow-node.node-three {
  right: 11%;
  top: 36%;
}

.barcode-fragment,
.label-barcode {
  position: absolute;
  right: 9%;
  bottom: 11%;
  width: 38%;
  height: 34px;
  background:
    linear-gradient(90deg,
      rgba(0, 93, 170, 0.45) 0 4px,
      transparent 4px 8px,
      rgba(0, 93, 170, 0.38) 8px 11px,
      transparent 11px 17px,
      rgba(0, 93, 170, 0.48) 17px 22px,
      transparent 22px 27px,
      rgba(0, 93, 170, 0.35) 27px 30px,
      transparent 30px 36px,
      rgba(0, 93, 170, 0.48) 36px 42px);
  opacity: 0.72;
}

.grid-fragment,
.label-grid {
  position: absolute;
  left: 12%;
  bottom: 7%;
  width: 42%;
  height: 44%;
  border: 1px solid rgba(0, 93, 170, 0.16);
  background-image:
    linear-gradient(rgba(0, 93, 170, 0.13) 1px, transparent 1px),
    linear-gradient(90deg, rgba(0, 93, 170, 0.13) 1px, transparent 1px);
  background-size: 16px 16px;
}

.route-visual,
.label-visual {
  width: min(38%, 170px);
  opacity: 0.38;
}

.route-line {
  position: absolute;
  inset: 24% 10% auto 10%;
  height: 72px;
  border-top: 1px solid rgba(161, 45, 34, 0.48);
  border-right: 1px solid rgba(161, 45, 34, 0.38);
  border-radius: 0 42px 0 0;
  transform: rotate(-8deg);
}

.route-dot {
  border-color: rgba(161, 45, 34, 0.58);
}

.route-dot.dot-one {
  left: 11%;
  top: 20%;
}

.route-dot.dot-two {
  left: 52%;
  top: 28%;
}

.route-dot.dot-three {
  right: 12%;
  top: 62%;
}

.label-sheet {
  position: absolute;
  right: 8%;
  top: 14%;
  width: 64%;
  height: 64%;
  border: 1px solid rgba(86, 100, 34, 0.22);
  border-radius: 5px;
  background: rgba(255, 255, 255, 0.52);
  transform: rotate(5deg);
}

.label-barcode {
  right: 19%;
  bottom: 25%;
  width: 45%;
  background:
    linear-gradient(90deg,
      rgba(86, 100, 34, 0.48) 0 4px,
      transparent 4px 8px,
      rgba(86, 100, 34, 0.35) 8px 11px,
      transparent 11px 17px,
      rgba(86, 100, 34, 0.48) 17px 22px,
      transparent 22px 27px,
      rgba(86, 100, 34, 0.34) 27px 30px,
      transparent 30px 36px,
      rgba(86, 100, 34, 0.48) 36px 42px);
}

.label-grid {
  left: 17%;
  bottom: 12%;
  border-color: rgba(86, 100, 34, 0.14);
  background-image:
    linear-gradient(rgba(86, 100, 34, 0.12) 1px, transparent 1px),
    linear-gradient(90deg, rgba(86, 100, 34, 0.12) 1px, transparent 1px);
}

@media (min-width: 780px) {
  .platform-showcase {
    grid-template-columns: minmax(0, 1.18fr) minmax(320px, 0.82fr);
  }

  .platform-stack .platform-panel {
    min-height: calc((100% - clamp(1rem, 2vw, 1.4rem)) / 2);
  }
}

@media (max-width: 779px) {
  .platform-panel {
    transform: translateY(10px);
  }

  .platform-visual {
    width: min(42%, 190px);
  }
}

@media (max-width: 520px) {
  .platform-showcase,
  .platform-stack {
    gap: 0.85rem;
  }

  .platform-visual {
    width: 42%;
    opacity: 0.28;
  }

  .platform-chips {
    gap: 0.35rem;
  }

  .platform-chips span {
    min-height: 26px;
    padding: 0.28rem 0.48rem;
    font-size: 0.68rem;
  }
}

@media (prefers-reduced-motion: reduce) {
  .platform-panel,
  .platform-visual,
  .platform-link span {
    transition: none;
  }

  .platform-panel {
    transform: none;
    opacity: 1;
  }

  .platform-panel:hover,
  .platform-panel:focus-visible {
    transform: none;
  }
}

/* Reveal enhancement is opt-in so cards remain visible without JavaScript. */
.platform-panel.reveal-on-scroll {
  opacity: 1;
  transform: none;
}

.has-scroll-reveal .platform-panel.reveal-on-scroll {
  opacity: 0;
  transform: translateY(14px);
}

.has-scroll-reveal .platform-panel.reveal-on-scroll.is-visible {
  opacity: 1;
  transform: translateY(0);
}

.has-scroll-reveal .platform-panel.reveal-on-scroll.is-visible:hover,
.has-scroll-reveal .platform-panel.reveal-on-scroll.is-visible:focus-visible,
.platform-panel.reveal-on-scroll:hover,
.platform-panel.reveal-on-scroll:focus-visible {
  transform: translateY(-4px);
}

@media (prefers-reduced-motion: reduce) {
  .has-scroll-reveal .platform-panel.reveal-on-scroll,
  .has-scroll-reveal .platform-panel.reveal-on-scroll.is-visible,
  .has-scroll-reveal .platform-panel.reveal-on-scroll.is-visible:hover,
  .has-scroll-reveal .platform-panel.reveal-on-scroll.is-visible:focus-visible {
    opacity: 1;
    transform: none;
  }
}

/* Homepage strategic visual rhythm pass */
.hero {
  overflow: hidden;
  background:
    radial-gradient(circle at 74% 38%, rgba(143, 108, 55, 0.2), transparent 18rem),
    radial-gradient(circle at 18% 70%, rgba(0, 93, 170, 0.18), transparent 20rem),
    linear-gradient(112deg, #0d0f11 0%, #171a1d 52%, #211d19 100%);
}

.hero::after {
  height: 100%;
  background:
    linear-gradient(90deg, rgba(13, 15, 17, 0.9), rgba(13, 15, 17, 0.56) 52%, rgba(13, 15, 17, 0.2)),
    linear-gradient(0deg, rgba(13, 15, 17, 0.72), transparent 45%);
}

.hero-system-visual {
  position: absolute;
  inset: 12% 5% auto auto;
  z-index: 0;
  width: min(42vw, 610px);
  aspect-ratio: 1.28;
  pointer-events: none;
  opacity: 0.9;
}

.hero-orbit,
.hero-path,
.hero-node,
.hero-label {
  position: absolute;
  display: block;
}

.hero-orbit {
  inset: 8% 5% 10% 4%;
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: 999px;
  transform: rotate(-14deg);
}

.hero-orbit.orbit-two {
  inset: 22% 16% 24% 14%;
  border-color: rgba(0, 93, 170, 0.28);
  transform: rotate(17deg);
}

.hero-path {
  height: 1px;
  background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.36), transparent);
  transform-origin: center;
}

.hero-path.path-one {
  left: 5%;
  right: 12%;
  top: 43%;
  transform: rotate(-10deg);
}

.hero-path.path-two {
  left: 19%;
  right: 2%;
  top: 62%;
  transform: rotate(13deg);
}

.hero-node {
  width: 12px;
  height: 12px;
  border: 2px solid rgba(255, 255, 255, 0.62);
  border-radius: 50%;
  background: rgba(0, 93, 170, 0.42);
  box-shadow: 0 0 32px rgba(0, 93, 170, 0.42);
}

.hero-node.node-a {
  left: 13%;
  top: 35%;
}

.hero-node.node-b {
  left: 43%;
  top: 54%;
}

.hero-node.node-c {
  right: 19%;
  top: 31%;
}

.hero-node.node-d {
  right: 8%;
  bottom: 22%;
}

.hero-label {
  padding: 0.42rem 0.62rem;
  border: 1px solid rgba(255, 255, 255, 0.12);
  border-radius: 999px;
  color: rgba(255, 255, 255, 0.74);
  background: rgba(255, 255, 255, 0.06);
  font-size: 0.68rem;
  font-weight: 720;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  backdrop-filter: blur(12px);
}

.hero-label.label-one {
  left: 6%;
  top: 15%;
}

.hero-label.label-two {
  right: 16%;
  top: 8%;
}

.hero-label.label-three {
  right: 3%;
  bottom: 9%;
}

.hero-content {
  position: relative;
  z-index: 2;
}

.lifecycle-panel,
.integration-panel {
  overflow: hidden;
  border-color: rgba(16, 17, 18, 0.1);
  background:
    linear-gradient(145deg, rgba(255, 255, 255, 0.94), rgba(248, 247, 243, 0.76)),
    #fff;
}

.lifecycle-map {
  display: grid;
  gap: 0.65rem;
}

.lifecycle-step,
.lifecycle-gap {
  position: relative;
  display: grid;
  grid-template-columns: 42px minmax(0, 1fr);
  gap: 0.85rem;
  align-items: center;
  padding: 0.78rem 0.85rem;
  border: 1px solid rgba(16, 17, 18, 0.08);
  border-radius: 8px;
  background: rgba(255, 255, 255, 0.66);
}

.lifecycle-step::after {
  position: absolute;
  left: 2.05rem;
  bottom: -0.68rem;
  width: 1px;
  height: 0.7rem;
  content: "";
  background: rgba(16, 17, 18, 0.14);
}

.lifecycle-step:last-child::after {
  display: none;
}

.lifecycle-step span,
.lifecycle-gap span {
  color: var(--soft);
  font-size: 0.7rem;
  font-weight: 760;
  letter-spacing: 0.08em;
}

.lifecycle-step strong {
  font-size: 0.91rem;
}

.lifecycle-gap {
  grid-template-columns: 1fr;
  border-style: dashed;
  border-color: rgba(143, 108, 55, 0.42);
  color: var(--gold);
  background: rgba(143, 108, 55, 0.06);
}

.lifecycle-step.reconnect {
  border-color: rgba(0, 93, 170, 0.24);
  background: rgba(0, 93, 170, 0.06);
}

.lifecycle-step.intelligence {
  border-color: rgba(86, 100, 34, 0.22);
  background: rgba(86, 100, 34, 0.06);
}

.lifecycle-platforms {
  display: grid;
  gap: 0.5rem;
  margin-top: 1rem;
  padding-top: 1rem;
  border-top: 1px solid rgba(16, 17, 18, 0.08);
}

.lifecycle-platforms span {
  color: var(--muted);
  font-size: 0.8rem;
  line-height: 1.5;
}

.lifecycle-platforms strong {
  color: var(--ink);
}

.issue-grid {
  display: grid;
  gap: 0.85rem;
  margin-top: clamp(2rem, 4vw, 3rem);
}

.issue-card {
  position: relative;
  padding: clamp(1.15rem, 2.2vw, 1.55rem);
  border: 1px solid rgba(255, 255, 255, 0.12);
  border-radius: 8px;
  background: rgba(255, 255, 255, 0.045);
}

.issue-mark {
  display: block;
  width: 28px;
  height: 2px;
  margin-bottom: 1rem;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.44);
}

.issue-card h3 {
  margin-bottom: 0.55rem;
}

.issue-card p {
  margin: 0;
  color: rgba(255, 255, 255, 0.72);
  font-size: 0.94rem;
  line-height: 1.62;
}

.integration-map {
  position: relative;
  min-height: 360px;
  border: 1px solid rgba(16, 17, 18, 0.08);
  border-radius: 10px;
  background:
    radial-gradient(circle at center, rgba(0, 93, 170, 0.09), transparent 8rem),
    linear-gradient(rgba(16, 17, 18, 0.045) 1px, transparent 1px),
    linear-gradient(90deg, rgba(16, 17, 18, 0.045) 1px, transparent 1px);
  background-size: auto, 36px 36px, 36px 36px;
}

.integration-map::before,
.integration-map::after {
  position: absolute;
  inset: 18% 16%;
  border: 1px solid rgba(16, 17, 18, 0.1);
  border-radius: 999px;
  content: "";
}

.integration-map::after {
  inset: 28% 27%;
  border-color: rgba(0, 93, 170, 0.14);
  transform: rotate(22deg);
}

.integration-hub,
.integration-node {
  position: absolute;
  z-index: 2;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border: 1px solid rgba(16, 17, 18, 0.12);
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.82);
  box-shadow: 0 12px 34px rgba(16, 17, 18, 0.07);
  font-size: 0.78rem;
  font-weight: 720;
}

.integration-hub {
  left: 50%;
  top: 50%;
  width: 132px;
  height: 132px;
  color: var(--white);
  background: var(--ink);
  transform: translate(-50%, -50%);
}

.integration-node {
  min-height: 34px;
  padding: 0.38rem 0.68rem;
}

.integration-node.erp {
  left: 8%;
  top: 18%;
}

.integration-node.warehouse {
  right: 7%;
  top: 16%;
}

.integration-node.labeling {
  left: 4%;
  bottom: 22%;
}

.integration-node.logistics {
  right: 6%;
  bottom: 20%;
}

.integration-node.portal {
  left: 34%;
  top: 5%;
}

.integration-node.analytics {
  left: 32%;
  bottom: 6%;
}

.proof-note {
  margin-top: 1rem;
  padding-top: 1rem;
  border-top: 1px solid rgba(16, 17, 18, 0.08);
}

.proof-note p {
  margin: 0;
  color: var(--muted);
}

.callout {
  position: relative;
}

.callout::after {
  position: absolute;
  right: 1.25rem;
  bottom: 1.25rem;
  width: 120px;
  height: 70px;
  pointer-events: none;
  content: "";
  opacity: 0.24;
  background:
    radial-gradient(circle at 18% 44%, rgba(255, 255, 255, 0.8) 0 2px, transparent 3px),
    radial-gradient(circle at 62% 22%, rgba(255, 255, 255, 0.8) 0 2px, transparent 3px),
    radial-gradient(circle at 84% 70%, rgba(255, 255, 255, 0.8) 0 2px, transparent 3px),
    linear-gradient(28deg, transparent 18%, rgba(255, 255, 255, 0.45) 18.2%, rgba(255, 255, 255, 0.45) 18.8%, transparent 19%),
    linear-gradient(-22deg, transparent 50%, rgba(255, 255, 255, 0.42) 50.2%, rgba(255, 255, 255, 0.42) 50.8%, transparent 51%);
}

@media (min-width: 720px) {
  .issue-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (min-width: 1060px) {
  .issue-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

@media (max-width: 900px) {
  .hero-system-visual {
    inset: 14% -8% auto auto;
    width: min(62vw, 480px);
    opacity: 0.48;
  }
}

@media (max-width: 720px) {
  .hero-system-visual {
    inset: auto -18% 4% auto;
    width: 78vw;
    opacity: 0.32;
  }

  .integration-map {
    min-height: 330px;
  }

  .integration-hub {
    width: 112px;
    height: 112px;
  }

  .integration-node {
    font-size: 0.7rem;
  }
}

@media (max-width: 430px) {
  .lifecycle-step,
  .lifecycle-gap {
    grid-template-columns: 34px minmax(0, 1fr);
    padding: 0.68rem;
  }

  .integration-map {
    min-height: 390px;
  }

  .integration-map::before,
  .integration-map::after {
    inset: 20% 12%;
  }

  .integration-node.erp,
  .integration-node.warehouse,
  .integration-node.labeling,
  .integration-node.logistics,
  .integration-node.portal,
  .integration-node.analytics {
    left: 50%;
    right: auto;
    transform: translateX(-50%);
  }

  .integration-node.erp {
    top: 7%;
  }

  .integration-node.warehouse {
    top: 18%;
  }

  .integration-node.portal {
    top: 29%;
  }

  .integration-node.analytics {
    bottom: 29%;
  }

  .integration-node.labeling {
    bottom: 18%;
  }

  .integration-node.logistics {
    bottom: 7%;
  }
}

/* Targeted section refinement: Why track and trace */
.thesis-section {
  position: relative;
  isolation: isolate;
  overflow: hidden;
  color: #ffffff;
  border-top: 1px solid rgba(var(--brand-blue-rgb), 0.28);
  border-bottom: 1px solid rgba(var(--brand-navy-rgb), 0.34);
  background:
    radial-gradient(circle at 16% 14%, rgba(255, 255, 255, 0.16), transparent 18rem),
    radial-gradient(circle at 86% 78%, rgba(255, 255, 255, 0.1), transparent 22rem),
    linear-gradient(145deg, rgba(var(--brand-blue-rgb), 0.98), rgba(var(--brand-navy-rgb), 0.97)),
    var(--brand-blue);
}

.thesis-section::before {
  display: block;
  position: absolute;
  inset: 0;
  z-index: 0;
  content: "";
  background:
    linear-gradient(90deg, rgba(255, 255, 255, 0.11), transparent 36%),
    linear-gradient(135deg, transparent 0 49.7%, rgba(255, 255, 255, 0.09) 49.85%, transparent 50.15%),
    linear-gradient(35deg, transparent 0 69.7%, rgba(255, 255, 255, 0.06) 69.85%, transparent 70.15%);
  opacity: 0.62;
  pointer-events: none;
}

.thesis-section::after {
  display: block;
  position: absolute;
  inset: auto 0 0;
  z-index: 0;
  height: 1px;
  content: "";
  background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.28), transparent);
  pointer-events: none;
}

.thesis-section > .container {
  position: relative;
  display: grid;
  gap: clamp(2rem, 4vw, 3.25rem);
}

.thesis-heading {
  max-width: 710px;
  width: auto;
  padding: 0;
  border: 0;
  border-radius: 0;
  background: transparent;
  box-shadow: none;
  backdrop-filter: none;
}

.thesis-heading .eyebrow {
  color: rgba(255, 255, 255, 0.74);
}

.thesis-heading h2 {
  max-width: 680px;
  margin: 0;
  color: #ffffff;
  font-size: clamp(1.55rem, 2.65vw, 2.35rem);
  line-height: 1.12;
  text-wrap: balance;
}

.thesis-copy {
  position: relative;
  gap: clamp(1.35rem, 3vw, 2.75rem);
  max-width: 980px;
  padding: clamp(1.35rem, 2.6vw, 2.1rem);
  border: 1px solid rgba(255, 255, 255, 0.18);
  border-radius: 14px;
  color: rgba(255, 255, 255, 0.88);
  background: rgba(255, 255, 255, 0.105);
  box-shadow:
    0 1px 0 rgba(255, 255, 255, 0.2) inset,
    0 24px 72px rgba(0, 30, 66, 0.26);
  backdrop-filter: blur(14px) saturate(1.04);
}

.thesis-copy::before {
  position: absolute;
  left: clamp(1.35rem, 2.6vw, 2.1rem);
  right: clamp(1.35rem, 2.6vw, 2.1rem);
  top: 0;
  height: 2px;
  content: "";
  background: linear-gradient(90deg, rgba(255, 255, 255, 0.62), rgba(255, 255, 255, 0.16), transparent);
}

.thesis-copy p {
  max-width: 34rem;
  color: rgba(255, 255, 255, 0.86);
  font-size: clamp(0.98rem, 1vw, 1.05rem);
  line-height: 1.72;
}

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

@media (min-width: 920px) {
  .thesis-section > .container {
    grid-template-columns: minmax(260px, 0.72fr) minmax(0, 1.28fr);
    align-items: start;
  }

  .thesis-copy {
    margin-top: 0.3rem;
  }
}

@media (max-width: 720px) {
  .thesis-section {
    background:
      radial-gradient(circle at 20% 10%, rgba(255, 255, 255, 0.15), transparent 15rem),
      linear-gradient(150deg, rgba(var(--brand-blue-rgb), 0.99), rgba(var(--brand-navy-rgb), 0.98)),
      var(--brand-blue);
  }

  .thesis-heading {
    width: auto;
    padding: 1.1rem;
  }

  .thesis-copy {
    padding: 1.15rem;
    border-radius: 8px;
  }
}

/* QA refinement: quieter glass on light process section. */
.thesis-heading {
  border-color: rgba(255, 255, 255, 0.45);
  background: rgba(255, 255, 255, 0.5);
  box-shadow:
    0 1px 0 rgba(255, 255, 255, 0.54) inset,
    0 14px 42px rgba(16, 17, 18, 0.055);
  backdrop-filter: blur(10px) saturate(1.02);
}

.thesis-copy {
  border-color: rgba(255, 255, 255, 0.46);
  background: rgba(255, 255, 255, 0.58);
  box-shadow:
    0 1px 0 rgba(255, 255, 255, 0.58) inset,
    0 16px 48px rgba(16, 17, 18, 0.065);
  backdrop-filter: blur(12px) saturate(1.02);
}

/* Homepage process thesis: blue-led parent-brand treatment. */
.home-process-section {
  color: #ffffff;
  border-top-color: rgba(var(--brand-blue-rgb), 0.28);
  border-bottom-color: rgba(var(--brand-navy-rgb), 0.34);
  background:
    radial-gradient(circle at 16% 14%, rgba(255, 255, 255, 0.16), transparent 18rem),
    radial-gradient(circle at 86% 78%, rgba(255, 255, 255, 0.1), transparent 22rem),
    linear-gradient(145deg, rgba(var(--brand-blue-rgb), 0.98), rgba(var(--brand-navy-rgb), 0.97)),
    var(--brand-blue);
}

.home-process-section::before {
  display: block;
  position: absolute;
  inset: 0;
  z-index: 0;
  content: "";
  background:
    linear-gradient(90deg, rgba(255, 255, 255, 0.11), transparent 36%),
    linear-gradient(135deg, transparent 0 49.7%, rgba(255, 255, 255, 0.09) 49.85%, transparent 50.15%),
    linear-gradient(35deg, transparent 0 69.7%, rgba(255, 255, 255, 0.06) 69.85%, transparent 70.15%);
  opacity: 0.62;
  pointer-events: none;
}

.home-process-section::after {
  display: block;
  position: absolute;
  inset: auto 0 0;
  z-index: 0;
  height: 1px;
  content: "";
  background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.28), transparent);
  pointer-events: none;
}

.home-process-section > .container {
  z-index: 1;
  align-items: center;
  gap: clamp(2rem, 4vw, 4.5rem);
}

.home-process-section .thesis-heading {
  width: auto;
  max-width: 34rem;
  padding: 0;
  border: 0;
  border-radius: 0;
  color: #ffffff;
  background: transparent;
  box-shadow: none;
  backdrop-filter: none;
}

.home-process-section .thesis-heading .eyebrow {
  color: rgba(255, 255, 255, 0.74);
}

.home-process-section .thesis-heading h2 {
  max-width: 32rem;
  color: #ffffff;
  text-wrap: balance;
}

.home-process-section .thesis-copy {
  gap: clamp(1.25rem, 2.4vw, 2.4rem);
  max-width: none;
  margin-top: 0;
  padding: clamp(1.35rem, 2.5vw, 2rem);
  border: 1px solid rgba(255, 255, 255, 0.18);
  border-radius: 14px;
  color: rgba(255, 255, 255, 0.88);
  background: rgba(255, 255, 255, 0.105);
  box-shadow:
    0 1px 0 rgba(255, 255, 255, 0.2) inset,
    0 24px 72px rgba(0, 30, 66, 0.26);
  backdrop-filter: blur(14px) saturate(1.04);
}

.home-process-section .thesis-copy::before {
  left: clamp(1.35rem, 2.5vw, 2rem);
  right: clamp(1.35rem, 2.5vw, 2rem);
  background: linear-gradient(90deg, rgba(255, 255, 255, 0.62), rgba(255, 255, 255, 0.16), transparent);
}

.home-process-section .thesis-copy > div {
  min-width: 0;
}

.home-process-section .thesis-copy > div + div {
  border-left: 1px solid rgba(255, 255, 255, 0.14);
  padding-left: clamp(1.25rem, 2.4vw, 2.4rem);
}

.home-process-section .thesis-copy p {
  max-width: 31rem;
  color: rgba(255, 255, 255, 0.86);
}

.home-process-section .thesis-copy p + p {
  margin-top: 1.05rem;
}

@media (max-width: 919px) {
  .home-process-section > .container {
    gap: 1.75rem;
  }

  .home-process-section .thesis-copy {
    grid-template-columns: 1fr;
  }

  .home-process-section .thesis-copy > div + div {
    border-left: 0;
    border-top: 1px solid rgba(255, 255, 255, 0.14);
    padding-top: 1.25rem;
    padding-left: 0;
  }
}

@media (max-width: 720px) {
  .home-process-section {
    background:
      radial-gradient(circle at 20% 10%, rgba(255, 255, 255, 0.15), transparent 15rem),
      linear-gradient(150deg, rgba(var(--brand-blue-rgb), 0.99), rgba(var(--brand-navy-rgb), 0.98)),
      var(--brand-blue);
  }

  .home-process-section .thesis-heading {
    padding: 0;
  }

  .home-process-section .thesis-copy {
    padding: 1.15rem;
    border-radius: 10px;
  }

  .home-process-section .thesis-heading h2 {
    max-width: 24rem;
  }
}

/* Targeted refinement: premium dark risk diagnosis section. */
.signal-section {
  position: relative;
  isolation: isolate;
  overflow: hidden;
  background:
    radial-gradient(circle at 78% 28%, rgba(86, 100, 34, 0.16), transparent 23rem),
    radial-gradient(circle at 14% 82%, rgba(0, 93, 170, 0.12), transparent 22rem),
    linear-gradient(180deg, #101112 0%, #141619 100%);
}

.signal-section::before {
  position: absolute;
  inset: 0;
  z-index: -2;
  pointer-events: none;
  content: "";
  opacity: 0.34;
  background:
    linear-gradient(rgba(255, 255, 255, 0.035) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.03) 1px, transparent 1px),
    radial-gradient(circle at 18% 28%, rgba(255, 255, 255, 0.26) 0 1px, transparent 2px),
    radial-gradient(circle at 52% 52%, rgba(86, 100, 34, 0.3) 0 1px, transparent 2px),
    radial-gradient(circle at 82% 35%, rgba(255, 255, 255, 0.24) 0 1px, transparent 2px);
  background-size: 52px 52px, 52px 52px, auto, auto, auto;
}

.signal-section::after {
  position: absolute;
  inset: 18% 8% auto;
  z-index: -1;
  height: 54%;
  pointer-events: none;
  content: "";
  opacity: 0.22;
  background:
    linear-gradient(24deg, transparent 24%, rgba(255, 255, 255, 0.28) 24.1%, rgba(255, 255, 255, 0.28) 24.35%, transparent 24.45%),
    linear-gradient(143deg, transparent 52%, rgba(86, 100, 34, 0.34) 52.1%, rgba(86, 100, 34, 0.34) 52.35%, transparent 52.45%);
}

.signal-section > .container {
  position: relative;
  z-index: 1;
}

.signal-section h2 {
  max-width: 690px;
}

.signal-section .lead {
  max-width: 820px;
  color: rgba(255, 255, 255, 0.76);
  line-height: 1.72;
}

.issue-grid {
  gap: clamp(0.95rem, 1.8vw, 1.25rem);
}

.issue-card {
  min-height: 100%;
  padding: clamp(1.15rem, 2.2vw, 1.65rem);
  border: 1px solid rgba(255, 255, 255, 0.12);
  border-radius: 12px;
  background: rgba(255, 255, 255, 0.055);
  box-shadow:
    0 1px 0 rgba(255, 255, 255, 0.08) inset,
    0 18px 44px rgba(0, 0, 0, 0.18);
  backdrop-filter: blur(14px) saturate(1.04);
  transition:
    transform 180ms ease,
    border-color 180ms ease,
    background-color 180ms ease,
    box-shadow 180ms ease;
}

.issue-card:hover,
.issue-card:focus-within {
  border-color: rgba(137, 183, 181, 0.28);
  background: rgba(255, 255, 255, 0.075);
  box-shadow:
    0 1px 0 rgba(255, 255, 255, 0.11) inset,
    0 24px 58px rgba(0, 0, 0, 0.24);
  transform: translateY(-5px);
}

.issue-icon {
  width: 48px;
  height: 48px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 1rem;
  border: 1px solid rgba(255, 255, 255, 0.12);
  border-radius: 50%;
  color: rgba(178, 218, 215, 0.9);
  background: rgba(255, 255, 255, 0.06);
  box-shadow: 0 12px 30px rgba(0, 0, 0, 0.16);
  font-size: 24px;
  line-height: 1;
  transition: box-shadow 180ms ease, border-color 180ms ease, color 180ms ease;
}

.issue-card:hover .issue-icon,
.issue-card:focus-within .issue-icon {
  border-color: rgba(178, 218, 215, 0.28);
  color: rgba(210, 235, 233, 0.95);
  box-shadow: 0 0 0 5px rgba(86, 100, 34, 0.1), 0 14px 34px rgba(0, 0, 0, 0.2);
}

.issue-mark {
  width: 34px;
  height: 2px;
  margin-bottom: 0.85rem;
  background: linear-gradient(90deg, rgba(178, 218, 215, 0.56), rgba(255, 255, 255, 0.12));
}

.issue-card h3 {
  max-width: 18rem;
  margin-bottom: 0.65rem;
  color: rgba(255, 255, 255, 0.95);
  font-size: clamp(1rem, 1.2vw, 1.12rem);
  line-height: 1.3;
}

.issue-card p {
  color: rgba(255, 255, 255, 0.72);
  font-size: 0.93rem;
  line-height: 1.68;
}

@supports not ((backdrop-filter: blur(1px))) {
  .issue-card {
    background: rgba(255, 255, 255, 0.075);
  }
}

@media (prefers-reduced-motion: reduce) {
  .issue-card,
  .issue-icon {
    transition: none;
  }

  .issue-card:hover,
  .issue-card:focus-within {
    transform: none;
  }
}

@media (max-width: 720px) {
  .signal-section::after {
    opacity: 0.14;
  }

  .issue-card {
    border-radius: 10px;
  }
}

/* About page correction: reuse homepage system patterns instead of isolated templates. */
.about-hero {
  position: relative;
  isolation: isolate;
  overflow: hidden;
  background:
    radial-gradient(circle at 74% 38%, rgba(143, 108, 55, 0.16), transparent 18rem),
    radial-gradient(circle at 18% 70%, rgba(0, 93, 170, 0.16), transparent 20rem),
    linear-gradient(112deg, #0d0f11 0%, #171a1d 52%, #211d19 100%);
}

.about-hero::after {
  position: absolute;
  inset: 0;
  z-index: 0;
  pointer-events: none;
  content: "";
  background:
    linear-gradient(90deg, rgba(13, 15, 17, 0.9), rgba(13, 15, 17, 0.6) 56%, rgba(13, 15, 17, 0.24)),
    linear-gradient(0deg, rgba(13, 15, 17, 0.56), transparent 45%);
}

.about-hero-content {
  position: relative;
  z-index: 2;
  max-width: 820px;
}

.about-hero h1 {
  max-width: 680px;
}

.about-hero .lead {
  max-width: 650px;
  margin-top: var(--gap-md);
  color: rgba(255, 255, 255, 0.76);
}

.about-hero .hero-system-visual {
  inset: 16% 5% auto auto;
  width: min(40vw, 560px);
  opacity: 0.58;
}

.about-team-section .split {
  align-items: center;
}

.about-footprint-panel {
  align-self: center;
}

.about-footprint-panel .lifecycle-step:last-child::after {
  display: none;
}

.about-name-section {
  background:
    radial-gradient(circle at 16% 14%, rgba(255, 255, 255, 0.16), transparent 18rem),
    radial-gradient(circle at 86% 78%, rgba(255, 255, 255, 0.1), transparent 22rem),
    linear-gradient(145deg, rgba(var(--brand-blue-rgb), 0.98), rgba(var(--brand-navy-rgb), 0.97)),
    var(--brand-blue);
}

.about-cairn-heading {
  max-width: 760px;
}

.cairn-mark {
  width: 58px;
  display: grid;
  gap: 5px;
  margin-bottom: 1rem;
}

.cairn-mark span {
  height: 7px;
  display: block;
  border: 1px solid rgba(16, 17, 18, 0.12);
  border-radius: 999px;
  background:
    linear-gradient(145deg, rgba(255, 255, 255, 0.9), rgba(227, 230, 226, 0.7));
}

.cairn-mark span:nth-child(1) {
  width: 34px;
  margin-left: 12px;
}

.cairn-mark span:nth-child(2) {
  width: 48px;
  margin-left: 4px;
}

.cairn-mark span:nth-child(3) {
  width: 58px;
}

.about-story-copy {
  align-items: start;
}

.about-story-copy h3 {
  max-width: 24rem;
  margin-bottom: 0.7rem;
  font-size: clamp(1rem, 1.25vw, 1.15rem);
  line-height: 1.32;
}

.about-interface-section {
  padding: var(--section-y-tight) 0;
}

.about-interface-content {
  position: relative;
  z-index: 1;
  max-width: 880px;
  padding-left: clamp(1rem, 2vw, 1.5rem);
  border-left: 2px solid rgba(178, 218, 215, 0.48);
}

.about-interface-content h2 {
  max-width: 820px;
  margin-bottom: 0;
  color: rgba(255, 255, 255, 0.94);
  font-size: clamp(1.42rem, 2.2vw, 2.08rem);
  line-height: 1.2;
}

.about-principles-section {
  background:
    radial-gradient(circle at 14% 12%, rgba(0, 93, 170, 0.06), transparent 24rem),
    linear-gradient(180deg, #fbfaf7 0%, #f4f2ee 100%);
}

.about-work-intro {
  display: block;
  max-width: 720px;
  margin-bottom: clamp(1.6rem, 3.5vw, 2.5rem);
}

.about-work-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: clamp(1rem, 2vw, 1.4rem);
  margin: 0;
  padding: 0;
  list-style: none;
}

.about-work-card {
  align-content: start;
  min-height: auto;
  padding: clamp(1.15rem, 2.2vw, 1.65rem);
}

.about-work-card::before {
  background: var(--teal);
}

.about-work-card .principle-number {
  position: relative;
  z-index: 3;
  display: inline-flex;
  margin-top: clamp(1.05rem, 1.8vw, 1.2rem);
  color: #6f8f91;
  font-size: 0.74rem;
  font-weight: 800;
  letter-spacing: 0.1em;
}

.about-work-card h3 {
  max-width: 17rem;
  font-size: clamp(1rem, 1.15vw, 1.1rem);
}

.about-work-card p {
  font-size: 0.94rem;
}

.about-cta-section {
  padding-top: 0;
}

.about-cta-section .callout {
  background:
    radial-gradient(circle at 86% 20%, rgba(86, 100, 34, 0.16), transparent 19rem),
    linear-gradient(180deg, #101112 0%, #141619 100%);
}

.about-cta-section .callout .eyebrow {
  color: rgba(178, 218, 215, 0.88);
}

@media (max-width: 980px) {
  .about-work-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (max-width: 720px) {
  .about-hero .hero-system-visual {
    inset: auto -18% 4% auto;
    width: 78vw;
    opacity: 0.25;
  }

  .about-interface-content {
    padding-left: 1rem;
  }

  .about-work-grid {
    grid-template-columns: 1fr;
  }
}

/* Design system foundation v2: canonical tokens and reusable component rules. */
:root {
  --ink: #101112;
  --charcoal: #17191c;
  --charcoal-2: #202327;
  --muted: #5f666d;
  --soft: #8e969e;
  --paper: #fbfaf7;
  --white: #ffffff;
  --mist: #f4f2ee;
  --subtle: #eceff1;
  --line: rgba(16, 17, 18, 0.1);
  --line-strong: rgba(16, 17, 18, 0.18);
  --blue: #005DAA;
  --teal: #566422;
  --gold: #8f6c37;
  --rose: #A12D22;
  --container-wide: 1160px;
  --container-standard: 1040px;
  --container-reading: 740px;
  --section-y: clamp(4.75rem, 7vw, 7.25rem);
  --section-y-tight: clamp(3.25rem, 5vw, 4.75rem);
  --section-y-hero: clamp(5.25rem, 8vw, 7.5rem);
  --gap-xs: 0.5rem;
  --gap-sm: 0.85rem;
  --gap-md: 1.35rem;
  --gap-lg: 2rem;
  --gap-xl: 3rem;
  --radius: 12px;
  --radius-tight: 8px;
  --button-radius: 999px;
  --surface: rgba(255, 255, 255, 0.72);
  --surface-solid: #ffffff;
  --surface-glass: rgba(255, 255, 255, 0.58);
  --shadow-soft: 0 18px 52px rgba(16, 17, 18, 0.065);
  --shadow-panel: 0 22px 70px rgba(16, 17, 18, 0.075);
  --shadow-dark: 0 18px 44px rgba(0, 0, 0, 0.18);
  --focus-ring: 0 0 0 3px rgba(0, 93, 170, 0.22);
}

body {
  color: var(--ink);
  background: var(--paper);
}

:focus-visible {
  outline: 0;
  box-shadow: var(--focus-ring);
}

.container,
.nav-shell,
.footer-grid,
.footer-bottom .container {
  width: min(100% - clamp(2rem, 5vw, 4.5rem), var(--container-wide));
}

.section {
  padding: var(--section-y) 0;
}

.section.compact,
.product-detail-section,
.contact-section {
  padding: var(--section-y-tight) 0;
}

.page-hero {
  padding: var(--section-y-hero) 0 var(--section-y);
}

.hero-content {
  padding: var(--section-y-hero) 0 var(--section-y);
}

h1,
.display {
  max-width: 780px;
  font-size: clamp(2rem, 3.8vw, 3.35rem);
  line-height: 1.08;
  letter-spacing: 0;
}

.page-hero h1,
.post-header h1 {
  max-width: 820px;
  font-size: clamp(1.95rem, 3.35vw, 3rem);
}

h2 {
  max-width: 720px;
  font-size: clamp(1.42rem, 2.2vw, 2.08rem);
  line-height: 1.15;
}

h3 {
  line-height: 1.28;
}

.lead {
  max-width: var(--container-reading);
  color: var(--muted);
  font-size: clamp(1rem, 0.95vw, 1.08rem);
  line-height: 1.72;
}

.eyebrow {
  margin-bottom: var(--gap-sm);
  color: var(--soft);
  font-size: 0.68rem;
  font-weight: 720;
  letter-spacing: 0.14em;
}

.dark .eyebrow,
.hero .eyebrow,
.page-hero .eyebrow {
  color: rgba(255, 255, 255, 0.72);
}

.button {
  min-height: 44px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.45rem;
  padding: 0.72rem 1.12rem;
  border-radius: var(--button-radius);
  font-size: 0.9rem;
  line-height: 1;
  font-weight: 650;
  text-decoration: none;
  transition:
    background-color 160ms ease,
    border-color 160ms ease,
    color 160ms ease,
    transform 160ms ease,
    box-shadow 160ms ease;
}

.button:hover,
.button:focus-visible {
  transform: translateY(-1px);
}

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

.button.primary:hover,
.button.primary:focus-visible {
  border-color: #2a2d30;
  background: #2a2d30;
  color: var(--white);
}

.button.secondary,
.button.light {
  border-color: rgba(16, 17, 18, 0.18);
  background: transparent;
  color: var(--ink);
}

.button.secondary:hover,
.button.secondary:focus-visible,
.button.light:hover,
.button.light:focus-visible {
  border-color: rgba(16, 17, 18, 0.42);
  background: rgba(255, 255, 255, 0.74);
  color: var(--ink);
}

.hero .button.primary,
.page-hero .button.primary,
.dark .button.primary {
  border-color: var(--white);
  background: var(--white);
  color: var(--ink);
}

.hero .button.secondary,
.page-hero .button.secondary,
.dark .button.secondary,
.callout .button.light {
  border-color: rgba(255, 255, 255, 0.54);
  background: transparent;
  color: var(--white);
}

.hero .button.secondary:hover,
.hero .button.secondary:focus-visible,
.page-hero .button.secondary:hover,
.page-hero .button.secondary:focus-visible,
.dark .button.secondary:hover,
.dark .button.secondary:focus-visible,
.callout .button.light:hover,
.callout .button.light:focus-visible {
  border-color: var(--white);
  background: var(--white);
  color: var(--ink);
}

.hero-actions,
.button-row,
.archive-actions {
  gap: var(--gap-sm);
  margin-top: var(--gap-lg);
}

.site-header {
  border-bottom-color: rgba(16, 17, 18, 0.08);
  background: rgba(251, 250, 247, 0.88);
}

.nav-shell {
  min-height: 68px;
}

.brand-mark {
  border-radius: 50%;
  background: var(--charcoal);
}

.primary-nav a {
  color: #666d74;
  font-size: 0.9rem;
  font-weight: 620;
}

.primary-nav a:hover,
.primary-nav a:focus-visible,
.primary-nav a[aria-current="page"] {
  color: var(--ink);
}

.nav-cta {
  min-height: 44px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border: 1px solid rgba(16, 17, 18, 0.15);
  border-radius: var(--radius-tight);
  color: var(--ink) !important;
  background: transparent;
}

.nav-cta:hover,
.nav-cta:focus-visible {
  color: var(--white) !important;
  background: var(--ink);
}

.card,
.visual-panel,
.blog-card,
.tag-card,
.meta-item,
.process-list li,
.contact-panel address {
  border-color: var(--line);
  border-radius: var(--radius);
  background: var(--surface);
  box-shadow: var(--shadow-soft);
}

.card-body,
.visual-panel,
.blog-card,
.tag-card,
.meta-item,
.process-list li,
.contact-panel address {
  padding: clamp(1.35rem, 2.1vw, 1.9rem);
}

.platform-panel {
  border-color: rgba(16, 17, 18, 0.095);
  border-radius: 14px;
  background:
    linear-gradient(145deg, rgba(255, 255, 255, 0.92), rgba(248, 247, 243, 0.76)),
    rgba(255, 255, 255, 0.84);
  box-shadow:
    0 1px 0 rgba(255, 255, 255, 0.85) inset,
    var(--shadow-panel);
}

.issue-card {
  border-color: rgba(255, 255, 255, 0.12);
  border-radius: 12px;
  background: rgba(255, 255, 255, 0.055);
  box-shadow:
    0 1px 0 rgba(255, 255, 255, 0.08) inset,
    var(--shadow-dark);
}

.callout {
  overflow: hidden;
  padding: clamp(2rem, 4vw, 3.4rem);
  border-radius: var(--radius);
}

.blog-layout {
  width: min(100% - clamp(2rem, 5vw, 4.5rem), var(--container-standard));
}

.post-shell {
  width: min(100% - clamp(2rem, 6vw, 4rem), var(--container-reading));
}

.post-header,
.post-content,
.post-nav {
  max-width: var(--container-reading);
}

@media (max-width: 720px) {
  :root {
    --section-y: clamp(3.5rem, 12vw, 4.5rem);
    --section-y-tight: clamp(2.75rem, 10vw, 3.75rem);
    --section-y-hero: clamp(4rem, 13vw, 5rem);
  }

  .container,
  .nav-shell,
  .footer-grid,
  .footer-bottom .container,
  .blog-layout,
  .post-shell {
    width: min(100% - 2rem, var(--container-wide));
  }

  .page-hero h1,
  .post-header h1 {
    font-size: clamp(1.75rem, 7.6vw, 2.25rem);
  }

  .button,
  .hero-actions,
  .button-row {
    width: 100%;
  }
}

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

/* Platform page system: reusable layout for TRXio, MorTrack, and PTIPrint. */
.platform-page {
  --platform-accent: var(--blue);
  --platform-accent-soft: rgba(0, 93, 170, 0.14);
}

.platform-mortrack {
  --platform-accent: var(--rose);
  --platform-accent-soft: rgba(161, 45, 34, 0.14);
}

.platform-ptiprint {
  --platform-accent: var(--teal);
  --platform-accent-soft: rgba(86, 100, 34, 0.14);
}

.platform-profile-section {
  background:
    radial-gradient(circle at 84% 16%, var(--platform-accent-soft), transparent 22rem),
    linear-gradient(180deg, #fbfaf7 0%, #f4f2ee 100%);
}

.platform-profile-section .split {
  align-items: center;
}

.platform-system-card {
  position: relative;
  overflow: hidden;
  display: grid;
  gap: clamp(1.35rem, 2vw, 1.8rem);
}

.platform-system-card::after {
  position: absolute;
  inset: 0;
  z-index: 0;
  pointer-events: none;
  content: "";
  opacity: 0.55;
  background:
    linear-gradient(120deg, rgba(255, 255, 255, 0.72), transparent 38%),
    radial-gradient(circle at 86% 18%, var(--platform-accent-soft), transparent 14rem);
}

.platform-mini-map,
.platform-note {
  position: relative;
  z-index: 1;
}

.platform-mini-map {
  display: grid;
  gap: 0.65rem;
}

.platform-mini-map span {
  position: relative;
  display: grid;
  grid-template-columns: 34px minmax(0, 1fr);
  gap: 0.75rem;
  align-items: center;
  padding: 0.72rem 0.8rem;
  border: 1px solid rgba(16, 17, 18, 0.08);
  border-radius: var(--radius-tight);
  color: var(--ink);
  background: rgba(255, 255, 255, 0.62);
  font-size: 0.92rem;
  font-weight: 690;
}

.platform-mini-map span::before {
  width: 22px;
  height: 2px;
  border-radius: 999px;
  content: "";
  background: var(--platform-accent);
}

.platform-mini-map span + span::after {
  position: absolute;
  left: 1.48rem;
  top: -0.66rem;
  width: 1px;
  height: 0.66rem;
  content: "";
  background: rgba(16, 17, 18, 0.14);
}

.platform-note {
  padding-top: 1rem;
  border-top: 1px solid rgba(16, 17, 18, 0.08);
}

.platform-note h3 {
  margin-bottom: 0.55rem;
}

.platform-note p {
  margin-bottom: 0;
}

.platform-context-section h2 {
  max-width: 760px;
}

.platform-context-grid {
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.platform-ecosystem-section {
  overflow: hidden;
  background:
    radial-gradient(circle at 18% 12%, rgba(0, 93, 170, 0.055), transparent 28rem),
    radial-gradient(circle at 82% 78%, rgba(86, 100, 34, 0.05), transparent 24rem),
    linear-gradient(180deg, #fbfaf7 0%, #f4f2ee 100%);
}

.platform-related-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: clamp(1rem, 2vw, 1.4rem);
}

.platform-related-grid .platform-panel {
  min-height: auto;
  align-content: start;
  opacity: 1;
  transform: none;
}

.platform-related-grid .platform-panel:hover,
.platform-related-grid .platform-panel:focus-visible {
  transform: translateY(-4px);
}

.platform-related-grid .platform-brand {
  font-size: clamp(1.35rem, 2vw, 2rem);
}

.platform-cta-section {
  padding-top: 0;
}

.platform-cta-section .callout {
  background:
    radial-gradient(circle at 86% 20%, var(--platform-accent-soft), transparent 19rem),
    linear-gradient(180deg, #101112 0%, #141619 100%);
}

@media (max-width: 980px) {
  .platform-context-grid,
  .platform-related-grid {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 720px) {
  .platform-mini-map span {
    grid-template-columns: 28px minmax(0, 1fr);
    padding: 0.68rem 0.72rem;
  }
}

/* Solutions and contact system pass: internal pages inherit the homepage/product visual language. */
.solutions-page,
.contact-page {
  --page-accent: var(--blue);
  --page-accent-soft: rgba(0, 93, 170, 0.13);
}

.solutions-thesis-section,
.contact-conversation-section {
  background:
    radial-gradient(circle at 86% 16%, rgba(0, 93, 170, 0.065), transparent 23rem),
    linear-gradient(180deg, #fbfaf7 0%, #f4f2ee 100%);
}

.solutions-map-panel,
.hardware-list-panel,
.contact-card {
  position: relative;
  overflow: hidden;
}

.solutions-map-panel::after,
.hardware-list-panel::after,
.contact-card::after {
  position: absolute;
  inset: 0;
  z-index: 0;
  pointer-events: none;
  content: "";
  opacity: 0.55;
  background:
    linear-gradient(130deg, rgba(255, 255, 255, 0.78), transparent 42%),
    radial-gradient(circle at 86% 14%, rgba(0, 93, 170, 0.08), transparent 13rem);
}

.solutions-map-panel > *,
.hardware-list-panel > *,
.contact-card > * {
  position: relative;
  z-index: 1;
}

.solutions-platform-section .thesis-heading h2,
.solutions-capability-section .ecosystem-intro h2,
.solutions-integration-section h2 {
  max-width: 760px;
}

.solutions-card-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: clamp(1rem, 2vw, 1.4rem);
}

.solutions-card-grid .platform-panel {
  min-height: auto;
  align-content: start;
  opacity: 1;
  transform: none;
}

.solutions-card-grid .platform-panel:hover,
.solutions-card-grid .platform-panel:focus-within {
  transform: translateY(-4px);
  border-color: rgba(0, 93, 170, 0.26);
}

.solutions-card-grid .platform-brand {
  display: inline-flex;
  align-items: center;
  width: fit-content;
  margin-bottom: 1rem;
  color: var(--page-accent);
  font-size: 0.78rem;
  font-weight: 780;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.solutions-card-grid .platform-panel h3 {
  margin-bottom: 0.85rem;
  font-size: clamp(1.15rem, 1.5vw, 1.42rem);
}

.solutions-card-grid .platform-panel p {
  max-width: 34rem;
}

.solutions-signal-grid {
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.hardware-list-panel .plain-list {
  margin: 0;
}

.contact-panel {
  display: grid;
  grid-template-columns: minmax(0, 0.9fr) minmax(320px, 0.62fr);
  gap: clamp(1.5rem, 4vw, 4rem);
  align-items: start;
}

.contact-intro h2 {
  max-width: 680px;
}

.contact-intro > p {
  max-width: 630px;
}

.contact-topic-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 0.72rem;
  margin-top: clamp(1.3rem, 2vw, 1.8rem);
}

.contact-topic {
  display: flex;
  min-height: 52px;
  align-items: center;
  padding: 0.8rem 0.92rem;
  border: 1px solid rgba(16, 17, 18, 0.09);
  border-radius: var(--radius-tight);
  color: var(--ink);
  background: rgba(255, 255, 255, 0.58);
  font-size: 0.93rem;
  font-weight: 660;
}

.contact-card {
  display: grid;
  gap: 0;
  font-style: normal;
}

.contact-card .contact-line {
  padding: 1.05rem 0;
  border-bottom: 1px solid rgba(16, 17, 18, 0.09);
}

.contact-card .contact-line:first-child {
  padding-top: 0;
}

.contact-card .contact-line:last-child {
  padding-bottom: 0;
  border-bottom: 0;
}

.contact-card h3 {
  margin-bottom: 0.35rem;
  color: var(--ink);
  font-size: 0.83rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

.contact-card p {
  margin-bottom: 0;
}

.contact-card a {
  color: var(--blue-strong);
  text-decoration-thickness: 0.08em;
  text-underline-offset: 0.22em;
}

@media (max-width: 980px) {
  .solutions-card-grid,
  .solutions-signal-grid,
  .contact-panel {
    grid-template-columns: 1fr;
  }

  .contact-panel {
    gap: var(--gap-lg);
  }
}

@media (max-width: 720px) {
  .contact-topic-grid {
    grid-template-columns: 1fr;
  }

  .contact-topic {
    min-height: 48px;
  }
}

/* Blog system pass: archive and article pages inherit the same premium editorial system. */
main:has(.blog-layout) > .page-hero,
main:has(.tag-grid) > .page-hero {
  position: relative;
  isolation: isolate;
  overflow: hidden;
  padding: clamp(4.8rem, 9vw, 7.2rem) 0 clamp(4rem, 7vw, 6rem);
  color: var(--white);
  background:
    radial-gradient(circle at 78% 22%, rgba(0, 93, 170, 0.2), transparent 24rem),
    radial-gradient(circle at 18% 78%, rgba(86, 100, 34, 0.16), transparent 22rem),
    linear-gradient(112deg, #0d0f11 0%, #171a1d 56%, #211d19 100%);
}

main:has(.blog-layout) > .page-hero::before,
main:has(.tag-grid) > .page-hero::before {
  position: absolute;
  inset: 15% 7% auto auto;
  z-index: -1;
  width: min(42vw, 560px);
  aspect-ratio: 1.2;
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: 46% 54% 52% 48%;
  content: "";
  opacity: 0.75;
  background:
    linear-gradient(25deg, transparent 49.5%, rgba(255, 255, 255, 0.11) 50%, transparent 50.5%),
    linear-gradient(155deg, transparent 49.5%, rgba(255, 255, 255, 0.07) 50%, transparent 50.5%),
    radial-gradient(circle at 72% 26%, rgba(255, 255, 255, 0.18) 0 4px, transparent 5px),
    radial-gradient(circle at 32% 62%, rgba(255, 255, 255, 0.14) 0 4px, transparent 5px);
}

main:has(.blog-layout) > .page-hero .container,
main:has(.tag-grid) > .page-hero .container {
  position: relative;
  z-index: 1;
  max-width: var(--container-standard);
}

main:has(.blog-layout) > .page-hero h1,
main:has(.tag-grid) > .page-hero h1 {
  max-width: 780px;
}

main:has(.blog-layout) > .page-hero .lead,
main:has(.tag-grid) > .page-hero .lead {
  max-width: 660px;
  color: rgba(255, 255, 255, 0.76);
}

main:has(.blog-layout) > .section.compact,
main:has(.tag-grid) > .section:first-of-type {
  padding: clamp(2.4rem, 4vw, 3.4rem) 0;
  border-bottom: 1px solid rgba(16, 17, 18, 0.08);
  background:
    radial-gradient(circle at 90% 0%, rgba(0, 93, 170, 0.045), transparent 19rem),
    linear-gradient(180deg, #fbfaf7 0%, #f6f4ef 100%);
}

main:has(.blog-layout) > .section:has(.blog-layout),
main:has(.tag-grid) > .section:has(.tag-grid) {
  padding-top: clamp(3rem, 5vw, 4.6rem);
  background:
    radial-gradient(circle at 8% 2%, rgba(86, 100, 34, 0.04), transparent 22rem),
    linear-gradient(180deg, #fbfaf7 0%, #f4f2ee 100%);
}

.archive-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.72rem;
  align-items: center;
}

.archive-actions .button.light {
  min-height: 42px;
  padding: 0.68rem 1rem;
  border-color: rgba(16, 17, 18, 0.13);
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.6);
  box-shadow: 0 1px 0 rgba(255, 255, 255, 0.72) inset;
  color: var(--ink);
  font-size: 0.86rem;
  font-weight: 660;
}

.archive-actions .button.light:hover,
.archive-actions .button.light:focus-visible {
  border-color: rgba(0, 93, 170, 0.32);
  background: var(--white);
  color: var(--blue-strong);
}

.blog-layout {
  width: min(100% - clamp(2rem, 5vw, 4.5rem), var(--container-standard));
  display: grid;
  gap: clamp(0.85rem, 1.4vw, 1.1rem);
  border-top: 0;
}

.container > .blog-layout {
  width: 100%;
}

.archive-actions + .blog-layout,
.archive-actions + .tag-grid {
  margin-top: clamp(2rem, 4vw, 3rem);
}

.blog-card {
  position: relative;
  display: grid;
  grid-template-columns: minmax(132px, 0.22fr) minmax(0, 1fr);
  column-gap: clamp(1.5rem, 3.4vw, 3.2rem);
  align-items: start;
  padding: clamp(1.4rem, 2.6vw, 2.2rem);
  border: 1px solid rgba(16, 17, 18, 0.09);
  border-radius: 14px;
  background:
    linear-gradient(145deg, rgba(255, 255, 255, 0.9), rgba(248, 247, 243, 0.75)),
    rgba(255, 255, 255, 0.82);
  box-shadow:
    0 1px 0 rgba(255, 255, 255, 0.78) inset,
    0 18px 44px rgba(16, 17, 18, 0.045);
  transition:
    border-color 180ms ease,
    box-shadow 180ms ease,
    transform 180ms ease;
}

.blog-card:hover,
.blog-card:focus-within {
  border-color: rgba(0, 93, 170, 0.24);
  box-shadow:
    0 1px 0 rgba(255, 255, 255, 0.85) inset,
    0 24px 62px rgba(16, 17, 18, 0.07);
  transform: translateY(-2px);
}

.blog-card .blog-meta {
  grid-column: 1;
  grid-row: 1 / span 4;
  margin: 0;
  padding-top: 0.1rem;
}

.blog-card h2,
.blog-card > p,
.blog-card .blog-source {
  grid-column: 2;
}

.blog-card h2 {
  max-width: 840px;
  margin: 0 0 0.8rem;
  font-size: clamp(1.2rem, 1.7vw, 1.62rem);
  line-height: 1.2;
}

.blog-card h2 a {
  color: var(--ink);
  text-decoration: none;
}

.blog-card h2 a:hover,
.blog-card h2 a:focus-visible {
  color: var(--blue-strong);
}

.blog-card > p {
  max-width: 760px;
  margin-bottom: 1rem;
  color: var(--muted);
  font-size: 0.98rem;
  line-height: 1.68;
}

.blog-card > p:has(.button) {
  margin-bottom: 0.8rem;
}

.blog-card .button.light {
  min-height: 40px;
  padding: 0.62rem 0.92rem;
  border-radius: 999px;
  background: transparent;
  font-size: 0.84rem;
}

.blog-card .button.light::after {
  content: " ->";
  transition: transform 160ms ease;
}

.blog-card .button.light:hover::after,
.blog-card .button.light:focus-visible::after {
  transform: translateX(4px);
}

.blog-meta {
  display: grid;
  gap: 0.28rem;
  color: var(--soft);
  font-size: 0.82rem;
  line-height: 1.45;
}

.blog-meta span {
  display: block;
}

.blog-meta a {
  color: var(--blue-strong);
  overflow-wrap: anywhere;
}

.blog-source {
  max-width: 760px;
  margin-top: 0.25rem;
  padding-top: 0.8rem;
  border-top: 1px solid rgba(16, 17, 18, 0.08);
  color: var(--soft);
  font-size: 0.74rem;
  line-height: 1.55;
  overflow-wrap: anywhere;
}

.blog-source a {
  color: #365f80;
  text-decoration-thickness: 0.08em;
  text-underline-offset: 0.2em;
  word-break: break-word;
}

.tag-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: clamp(0.8rem, 1.5vw, 1.1rem);
  border-top: 0;
}

.tag-card {
  min-width: 0;
  padding: clamp(1rem, 1.7vw, 1.35rem);
  border: 1px solid rgba(16, 17, 18, 0.09);
  border-radius: 12px;
  background:
    linear-gradient(145deg, rgba(255, 255, 255, 0.88), rgba(248, 247, 243, 0.72)),
    rgba(255, 255, 255, 0.8);
  box-shadow: 0 14px 34px rgba(16, 17, 18, 0.04);
}

.tag-card h2 {
  max-width: 100%;
  margin-bottom: 0.7rem;
  color: var(--ink);
  font-size: clamp(0.98rem, 1.05vw, 1.12rem);
  line-height: 1.28;
  overflow-wrap: anywhere;
}

.tag-card ul {
  display: grid;
  gap: 0.45rem;
  margin: 0.85rem 0 0;
  padding-left: 1.05rem;
  color: var(--muted);
  font-size: 0.86rem;
  line-height: 1.45;
}

.tag-card a {
  color: var(--blue-strong);
  overflow-wrap: anywhere;
}

.post-shell {
  width: min(100% - clamp(2rem, 6vw, 4rem), var(--container-reading));
  max-width: var(--container-reading);
  margin: 0 auto;
  padding: clamp(2.6rem, 5vw, 4rem) 0 clamp(4rem, 7vw, 6rem);
}

.post-shell .post-nav:first-child {
  margin-bottom: clamp(1.5rem, 3vw, 2.3rem);
}

.post-nav {
  max-width: var(--container-reading);
}

.post-nav .button.light {
  min-height: 40px;
  padding: 0.62rem 0.92rem;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.64);
  font-size: 0.84rem;
}

.post-header {
  position: relative;
  max-width: var(--container-reading);
  margin-bottom: clamp(1.8rem, 4vw, 3rem);
  padding-bottom: clamp(1.6rem, 3vw, 2.2rem);
  border-bottom: 1px solid rgba(16, 17, 18, 0.1);
}

.post-header h1 {
  max-width: var(--container-reading);
  margin-bottom: 1rem;
  color: var(--ink);
  font-size: clamp(1.95rem, 3.2vw, 3rem);
  line-height: 1.09;
}

.post-featured-image,
.post-content figure {
  overflow: hidden;
  margin: clamp(1.5rem, 3vw, 2.4rem) 0;
  border: 1px solid rgba(16, 17, 18, 0.08);
  border-radius: 14px;
  background: rgba(255, 255, 255, 0.65);
  box-shadow: 0 16px 44px rgba(16, 17, 18, 0.055);
}

.post-featured-image img,
.post-content img {
  display: block;
  width: 100%;
  height: auto;
}

.post-content {
  max-width: var(--container-reading);
  color: #2e3337;
  font-size: clamp(1rem, 0.95vw, 1.07rem);
  line-height: 1.82;
}

.post-content p,
.post-content ul,
.post-content ol,
.post-content blockquote {
  margin-bottom: 1.25rem;
}

.post-content p:has(+ br),
.post-content br {
  margin-bottom: 0;
}

.post-content ul,
.post-content ol {
  padding-left: 1.3rem;
}

.post-content li + li {
  margin-top: 0.55rem;
}

.post-content a {
  color: var(--blue-strong);
  text-decoration-thickness: 0.08em;
  text-underline-offset: 0.22em;
}

.post-content p:has(a[href^="tags.html"]) {
  display: flex;
  flex-wrap: wrap;
  gap: 0.45rem;
  margin-top: clamp(1.8rem, 3vw, 2.4rem);
}

.post-content a[href^="tags.html"] {
  display: inline-flex;
  align-items: center;
  padding: 0.38rem 0.62rem;
  border: 1px solid rgba(16, 17, 18, 0.1);
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.62);
  color: var(--blue-strong);
  font-size: 0.8rem;
  font-weight: 650;
  line-height: 1;
  text-decoration: none;
}

.post-content a[href^="tags.html"]:hover,
.post-content a[href^="tags.html"]:focus-visible {
  border-color: rgba(0, 93, 170, 0.28);
  background: var(--white);
}

.pagination {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 1rem;
  align-items: center;
  margin-top: clamp(1.8rem, 4vw, 3rem);
  padding-top: clamp(1.2rem, 2.5vw, 1.8rem);
  border-top: 1px solid rgba(16, 17, 18, 0.1);
}

.pagination-status {
  color: var(--soft);
  font-size: 0.82rem;
  font-weight: 690;
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

.pagination-pages,
.pagination-controls {
  display: flex;
  flex-wrap: wrap;
  gap: 0.45rem;
  align-items: center;
}

.pagination-pages {
  justify-content: center;
}

.pagination-controls {
  grid-column: 1 / -1;
}

.pagination-link,
.pagination-control {
  display: inline-flex;
  min-width: 40px;
  min-height: 40px;
  align-items: center;
  justify-content: center;
  padding: 0.58rem 0.82rem;
  border: 1px solid rgba(16, 17, 18, 0.13);
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.62);
  color: var(--ink);
  font-size: 0.86rem;
  font-weight: 680;
  text-decoration: none;
  transition:
    background-color 160ms ease,
    border-color 160ms ease,
    color 160ms ease,
    transform 160ms ease;
}

.pagination-control {
  min-width: 96px;
}

.pagination-link:hover,
.pagination-link:focus-visible,
.pagination-control:hover,
.pagination-control:focus-visible {
  border-color: rgba(0, 93, 170, 0.34);
  background: var(--white);
  color: var(--blue-strong);
  transform: translateY(-1px);
}

.pagination-link.is-current {
  border-color: var(--ink);
  background: var(--ink);
  color: var(--white);
}

.pagination-control.is-disabled {
  border-color: rgba(16, 17, 18, 0.08);
  background: rgba(255, 255, 255, 0.34);
  color: rgba(95, 102, 109, 0.64);
}

.article-cta {
  position: relative;
  overflow: hidden;
  margin: clamp(2.6rem, 5vw, 4rem) 0 clamp(1.4rem, 3vw, 2rem);
  padding: clamp(1.6rem, 3vw, 2.4rem);
  border: 1px solid rgba(255, 255, 255, 0.12);
  border-radius: var(--radius);
  background:
    radial-gradient(circle at 88% 18%, rgba(0, 93, 170, 0.24), transparent 15rem),
    linear-gradient(180deg, #101112 0%, #151719 100%);
  box-shadow:
    0 1px 0 rgba(255, 255, 255, 0.08) inset,
    0 24px 58px rgba(16, 17, 18, 0.14);
  color: var(--white);
}

.article-cta::after {
  position: absolute;
  inset: auto -8% -48% auto;
  width: min(48vw, 420px);
  aspect-ratio: 1;
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: 50%;
  content: "";
}

.article-cta > * {
  position: relative;
  z-index: 1;
}

.article-cta h2 {
  max-width: 620px;
  color: var(--white);
  font-size: clamp(1.3rem, 2vw, 1.85rem);
}

.article-cta p {
  max-width: 650px;
  color: rgba(255, 255, 255, 0.74);
}

.article-cta .button-row {
  max-width: 100%;
}

.article-cta .button.primary {
  border-color: var(--white);
  background: var(--white);
  color: var(--ink);
}

.article-cta .button.secondary {
  border-color: rgba(255, 255, 255, 0.48);
  background: transparent;
  color: var(--white);
}

.article-cta .button.secondary:hover,
.article-cta .button.secondary:focus-visible {
  border-color: var(--white);
  background: var(--white);
  color: var(--ink);
}

@media (max-width: 980px) {
  .tag-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (max-width: 720px) {
  main:has(.blog-layout) > .page-hero,
  main:has(.tag-grid) > .page-hero {
    padding: clamp(3.8rem, 13vw, 5rem) 0;
  }

  main:has(.blog-layout) > .page-hero::before,
  main:has(.tag-grid) > .page-hero::before {
    inset: auto -18% 4% auto;
    width: 78vw;
    opacity: 0.28;
  }

  .archive-actions {
    display: grid;
    grid-template-columns: 1fr;
    width: 100%;
  }

  .archive-actions .button.light {
    width: 100%;
  }

  .blog-layout,
  .post-shell {
    width: min(100% - 2rem, var(--container-wide));
  }

  main:has(.blog-layout) > .page-hero h1,
  main:has(.tag-grid) > .page-hero h1 {
    max-width: 12ch;
    font-size: clamp(1.72rem, 7vw, 2.05rem);
  }

  main:has(.blog-layout) > .page-hero .lead,
  main:has(.tag-grid) > .page-hero .lead,
  main:has(.blog-layout) > .section.compact h2 {
    max-width: 28rem;
  }

  .blog-card {
    grid-template-columns: 1fr;
    gap: 0.85rem;
    padding: 1.2rem;
  }

  .blog-card .blog-meta,
  .blog-card h2,
  .blog-card > p,
  .blog-card .blog-source {
    grid-column: 1;
    grid-row: auto;
  }

  .blog-card .blog-meta {
    display: flex;
    flex-wrap: wrap;
    gap: 0.3rem 0.75rem;
    order: -1;
  }

  .tag-grid {
    grid-template-columns: 1fr;
  }

  .pagination {
    grid-template-columns: 1fr;
  }

  .pagination-pages,
  .pagination-controls {
    justify-content: flex-start;
  }

  .pagination-control {
    flex: 1 1 120px;
  }

  .post-header h1 {
    font-size: clamp(1.75rem, 7.3vw, 2.25rem);
  }

  .post-nav .button.light {
    width: 100%;
  }

  .article-cta {
    padding: 1.35rem;
  }

  .article-cta .button-row {
    display: grid;
    grid-template-columns: 1fr;
  }
}

/* Final QA: primary content must never depend on scroll-reveal timing to become readable. */
.has-scroll-reveal .platform-panel.reveal-on-scroll,
.has-scroll-reveal .platform-panel.reveal-on-scroll.is-visible {
  opacity: 1;
  transform: none;
}

.has-scroll-reveal .platform-panel.reveal-on-scroll:hover,
.has-scroll-reveal .platform-panel.reveal-on-scroll:focus-visible {
  transform: translateY(-4px);
}

@media (max-width: 820px) {
  .hero-system-visual .hero-label {
    display: none;
  }
}

/* Final full-site QA polish: decorative hero geometry should never drive mobile composition. */
h1,
h2,
.lead,
.post-content p,
.blog-card h2 {
  overflow-wrap: break-word;
}

.primary-nav a {
  min-width: 2rem;
}

.footer-nav a,
.contact-line a,
.blog-card h2 a,
.tag-card li a {
  display: inline-flex;
  align-items: center;
}

.footer-nav a,
.contact-line a,
.tag-card li a {
  min-height: 2rem;
}

.blog-card h2 a {
  min-height: 2.1rem;
}

.post-shell .post-nav:first-child {
  margin-top: 0;
  padding-top: 0;
  border-top: 0;
}

@media (max-width: 900px) {
  .hero-system-visual {
    right: 1rem;
    left: auto;
    width: min(52vw, 420px);
  }
}

@media (max-width: 720px) {
  .hero-system-visual {
    display: none;
  }

  .footer-nav a,
  .contact-line a,
  .tag-card li a {
    min-height: 2.5rem;
  }

  .hero h1 {
    font-size: clamp(1.82rem, 7.25vw, 2.18rem);
    line-height: 1.08;
  }

  .post-shell {
    padding-top: clamp(2rem, 8vw, 2.75rem);
  }
}

@media (max-width: 520px) {
  .container,
  .nav-shell,
  .footer-grid,
  .footer-bottom .container,
  .blog-layout,
  .post-shell {
    width: min(100% - 2.5rem, var(--container-wide));
  }
}

/* Blog article image QA: remove double frames and avoid enlarging tiny legacy exports. */
.post-content figure {
  width: 100%;
  max-width: 100%;
  margin: clamp(1.6rem, 3vw, 2.4rem) auto;
  padding: 0;
  overflow: hidden;
  border: 1px solid rgba(16, 17, 18, 0.1);
  border-radius: 12px;
  background: transparent;
  box-shadow: 0 16px 40px rgba(16, 17, 18, 0.05);
}

.post-content figure img,
.post-content img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  margin: 0;
  border: 0;
  border-radius: 0;
}

.post-content figure.is-low-resolution-figure {
  width: min(100%, var(--image-natural-width, 320px));
  background: transparent;
  border: 0;
  box-shadow: none;
}

.post-content figure.is-low-resolution-figure img {
  width: 100%;
  max-width: 100%;
  border-radius: 10px;
}

/* Blog listing filters: keep category navigation attached to the article list. */
.blog-list-filters {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.62rem;
  padding: 0 0 clamp(1.2rem, 2.4vw, 1.8rem);
  margin-bottom: 0.15rem;
  border-bottom: 1px solid rgba(16, 17, 18, 0.1);
}

.blog-filter-label {
  margin-right: 0.25rem;
  color: var(--soft);
  font-size: 0.74rem;
  font-weight: 800;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.blog-filter-pill {
  display: inline-flex;
  min-height: 40px;
  align-items: center;
  justify-content: center;
  padding: 0.62rem 0.92rem;
  border: 1px solid rgba(16, 17, 18, 0.13);
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.68);
  color: var(--ink);
  font-size: 0.9rem;
  font-weight: 750;
  line-height: 1;
  text-decoration: none;
  transition:
    border-color 160ms ease,
    background 160ms ease,
    color 160ms ease,
    transform 160ms ease;
}

.blog-filter-pill:hover,
.blog-filter-pill:focus-visible {
  border-color: rgba(0, 93, 170, 0.34);
  background: var(--white);
  color: var(--blue-strong);
  transform: translateY(-1px);
}

.blog-layout,
.blog-card,
.blog-card h2,
.blog-card > p {
  min-width: 0;
}

.blog-card h2 a {
  display: inline;
  min-height: 0;
}

@media (max-width: 720px) {
  .blog-list-filters {
    gap: 0.5rem;
    padding-bottom: 1rem;
  }

  .blog-filter-label {
    flex-basis: 100%;
    margin-right: 0;
  }

  .blog-filter-pill {
    min-height: 38px;
    padding: 0.58rem 0.82rem;
    font-size: 0.85rem;
  }
}

/* Official Cairnstack brand alignment layer. */
:root {
  --color-cairnstack-primary: #005DAA;
  --color-cairnstack-secondary: #002D62;
  --color-cairnstack-blue: var(--color-cairnstack-primary);
  --color-cairnstack-navy: var(--color-cairnstack-secondary);
  --color-cairnstack-ink: #101112;
  --color-cairnstack-charcoal: #17191c;
  --color-cairnstack-paper: #fbfbfa;
  --color-cairnstack-mist: #f3f4f5;
  --color-cairnstack-line: #dedede;
  --color-cairnstack-muted: #5f666d;
  --color-cairnstack-soft: #8e969e;
  --color-cairnstack-gold: #8f6c37;
  --color-trxio-primary: #4E65A4;
  --color-trxio-secondary: #232E68;
  --color-mortrack-primary: #F3812F;
  --color-mortrack-secondary: #A12D22;
  --color-ptiprint-primary: #8B8D09;
  --color-ptiprint-secondary: #566422;
  --ink: var(--color-cairnstack-ink);
  --charcoal: var(--color-cairnstack-charcoal);
  --paper: var(--color-cairnstack-paper);
  --mist: var(--color-cairnstack-mist);
  --line: rgba(16, 17, 18, 0.1);
  --muted: var(--color-cairnstack-muted);
  --soft: var(--color-cairnstack-soft);
  --gold: var(--color-cairnstack-gold);
  --blue: var(--color-cairnstack-primary);
  --blue-dark: var(--color-cairnstack-secondary);
  --blue-strong: var(--color-cairnstack-secondary);
  --rose: var(--color-mortrack-secondary);
  --teal: var(--color-ptiprint-primary);
  --teal-strong: var(--color-ptiprint-secondary);
  --focus-ring: 0 0 0 3px rgba(0, 93, 170, 0.22);
}

.brand {
  min-width: 0;
  gap: 0;
}

.brand-logo {
  display: block;
  width: clamp(170px, 14vw, 224px);
  max-width: 100%;
  max-height: 42px;
  object-fit: contain;
}

.site-header .brand-logo {
  width: clamp(168px, 13vw, 216px);
}

.site-footer .brand {
  width: fit-content;
  max-width: 100%;
  padding: 0;
  border: 0;
  border-radius: 0;
  background: transparent;
}

.site-footer .brand-logo {
  width: min(220px, 100%);
}

.site-header {
  border-bottom-color: rgba(16, 17, 18, 0.1);
  background: rgba(251, 251, 250, 0.9);
}

::selection {
  background: rgba(0, 93, 170, 0.16);
}

.hero,
.page-hero,
.signal-section {
  background:
    radial-gradient(circle at 82% 18%, rgba(0, 93, 170, 0.2), transparent 24rem),
    radial-gradient(circle at 12% 86%, rgba(0, 45, 98, 0.22), transparent 24rem),
    linear-gradient(135deg, #101112 0%, #111923 48%, #0b2742 100%);
}

.hero::after,
.page-hero::after,
.signal-section::after {
  border-color: rgba(0, 93, 170, 0.11);
}

.eyebrow,
.page-hero .eyebrow {
  color: var(--blue-strong);
}

.hero .eyebrow,
.dark .eyebrow,
.signal-section .eyebrow {
  color: #b8d9f4;
}

.post-content a,
.blog-card h2 a:hover,
.blog-card h2 a:focus-visible,
.blog-meta a,
.blog-source a,
.tag-card a,
.contact-line a {
  color: var(--blue);
}

.primary-nav a,
.footer-nav a {
  transition:
    color 160ms ease,
    border-color 160ms ease,
    background 160ms ease,
    transform 160ms ease;
}

.primary-nav a:hover,
.primary-nav a:focus-visible {
  color: var(--blue-strong);
}

.primary-nav .nav-cta {
  border-color: rgba(16, 17, 18, 0.16);
  background: rgba(255, 255, 255, 0.82);
}

.primary-nav .nav-cta:hover,
.primary-nav .nav-cta:focus-visible {
  border-color: rgba(0, 93, 170, 0.35);
  background: #ffffff;
  color: var(--blue-strong);
}

.button,
.nav-cta,
.blog-filter-pill,
.post-nav .button.light,
.archive-actions .button.light {
  min-height: 44px;
  border-radius: 999px;
  font-size: 0.92rem;
  font-weight: 760;
  letter-spacing: 0;
}

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

.button.primary:hover,
.button.primary:focus-visible {
  border-color: var(--blue-strong);
  background: var(--blue-strong);
  color: #ffffff;
}

.button.secondary,
.button.light {
  border-color: rgba(16, 17, 18, 0.18);
  background: rgba(255, 255, 255, 0.72);
  color: var(--ink);
}

.dark .button.secondary,
.hero .button.secondary,
.page-hero .button.secondary {
  border-color: rgba(255, 255, 255, 0.42);
  background: rgba(255, 255, 255, 0.08);
  color: #ffffff;
}

.button.secondary:hover,
.button.secondary:focus-visible,
.button.light:hover,
.button.light:focus-visible {
  border-color: rgba(0, 93, 170, 0.34);
  background: #ffffff;
  color: var(--blue-strong);
}

.card,
.blog-card,
.platform-panel,
.visual-panel,
.callout,
.tag-card,
.article-cta {
  border-color: rgba(16, 17, 18, 0.1);
  border-radius: var(--radius);
}

.platform-panel.trxio,
.platform-trxio,
.trxio-hero {
  --platform-accent: var(--color-trxio-primary);
  --platform-accent-strong: var(--color-trxio-secondary);
  --platform-accent-soft: rgba(78, 101, 164, 0.14);
}

.platform-panel.mortrack,
.platform-mortrack,
.mortrack-hero {
  --platform-accent: var(--color-mortrack-primary);
  --platform-accent-strong: var(--color-mortrack-secondary);
  --platform-accent-soft: rgba(243, 129, 47, 0.16);
}

.platform-panel.ptiprint,
.platform-ptiprint,
.ptiprint-hero {
  --platform-accent: var(--color-ptiprint-primary);
  --platform-accent-strong: var(--color-ptiprint-secondary);
  --platform-accent-soft: rgba(139, 141, 9, 0.15);
}

.platform-panel::before {
  background: var(--platform-accent, var(--blue));
}

.platform-panel.trxio:hover,
.platform-panel.trxio:focus-visible {
  border-color: rgba(78, 101, 164, 0.42);
}

.platform-panel.trxio .flow-line {
  background: linear-gradient(90deg, transparent, rgba(78, 101, 164, 0.68), transparent);
}

.platform-panel.trxio .flow-node {
  border-color: rgba(78, 101, 164, 0.58);
}

.platform-panel.trxio .barcode-fragment {
  background:
    linear-gradient(90deg,
      rgba(78, 101, 164, 0.45) 0 4px,
      transparent 4px 8px,
      rgba(78, 101, 164, 0.38) 8px 11px,
      transparent 11px 17px,
      rgba(78, 101, 164, 0.48) 17px 22px,
      transparent 22px 27px,
      rgba(78, 101, 164, 0.35) 27px 30px,
      transparent 30px 36px,
      rgba(78, 101, 164, 0.48) 36px 42px);
}

.platform-panel.trxio .grid-fragment {
  border-color: rgba(78, 101, 164, 0.16);
  background-image:
    linear-gradient(rgba(78, 101, 164, 0.13) 1px, transparent 1px),
    linear-gradient(90deg, rgba(78, 101, 164, 0.13) 1px, transparent 1px);
}

.platform-panel.mortrack:hover,
.platform-panel.mortrack:focus-visible {
  border-color: rgba(243, 129, 47, 0.42);
}

.platform-panel.ptiprint:hover,
.platform-panel.ptiprint:focus-visible {
  border-color: rgba(139, 141, 9, 0.42);
}

.platform-panel.mortrack .platform-brand {
  color: var(--color-mortrack-secondary);
}

.platform-panel.ptiprint .platform-brand {
  color: var(--color-ptiprint-secondary);
}

@media (max-width: 720px) {
  .brand-logo,
  .site-header .brand-logo {
    width: clamp(148px, 48vw, 188px);
    max-height: 36px;
  }

  .site-footer .brand-logo {
    width: min(188px, 100%);
  }

  .button,
  .nav-cta,
  .blog-filter-pill {
    min-height: 44px;
  }
}

/* Narrow viewport QA: prevent hero/article text and filter controls from forcing horizontal overflow. */
@media (max-width: 520px) {
  html,
  body {
    max-width: 100%;
    overflow-x: clip;
  }

  .container,
  .footer-grid,
  .footer-bottom .container,
  .blog-layout,
  .post-shell {
    width: calc(100% - 40px);
    max-width: calc(100% - 40px);
  }

  .nav-shell {
    width: calc(100% - 32px);
    max-width: calc(100% - 32px);
  }

  .hero-content,
  .about-hero-content,
  .page-hero .container,
  .post-shell,
  .blog-layout,
  .blog-card,
  .platform-panel,
  .button-row,
  .hero-actions {
    min-width: 0;
    max-width: 100%;
  }

  h1,
  .hero h1,
  .page-hero h1,
  .about-hero h1,
  .post-shell h1 {
    max-width: 100%;
    font-size: clamp(1.55rem, 7vw, 1.86rem);
    line-height: 1.14;
    overflow-wrap: anywhere;
    word-break: normal;
    text-wrap: balance;
  }

  .hero .lead,
  .page-hero .lead,
  .post-content p,
  .blog-card > p {
    max-width: 100%;
    font-size: 1rem;
    line-height: 1.68;
    overflow-wrap: anywhere;
  }

  .button-row,
  .hero-actions,
  .archive-actions,
  .article-cta .button-row {
    display: grid;
    grid-template-columns: 1fr;
    gap: 0.8rem;
  }

  .button,
  .button.primary,
  .button.secondary,
  .button.light {
    width: 100%;
    max-width: 100%;
    justify-content: center;
    white-space: normal;
    text-align: center;
    overflow-wrap: anywhere;
  }

  .proof-strip {
    width: 100%;
    max-width: 100%;
    overflow: hidden;
  }

  .proof-item,
  .proof-label,
  .proof-value {
    min-width: 0;
    max-width: 100%;
    overflow-wrap: normal;
    word-break: normal;
  }

  .blog-list-filters {
    flex-wrap: nowrap;
    gap: 0.5rem;
    margin-inline: -20px;
    padding: 0 20px 1rem;
    overflow-x: auto;
    scrollbar-width: none;
  }

  .blog-list-filters::-webkit-scrollbar {
    display: none;
  }

  .blog-filter-label {
    flex: 0 0 auto;
    white-space: nowrap;
  }

  .blog-filter-pill {
    flex: 0 0 auto;
    width: auto;
    white-space: nowrap;
  }
}

@media (max-width: 360px) {
  h1,
  .hero h1,
  .page-hero h1,
  .about-hero h1,
  .post-shell h1 {
    font-size: clamp(1.42rem, 7.2vw, 1.62rem);
    line-height: 1.16;
    text-wrap: auto;
  }

  .hero .lead,
  .page-hero .lead,
  .post-content p,
  .blog-card > p {
    font-size: 0.96rem;
  }
}

/* Final color-pass mobile QA: keep hero/header content inside the actual viewport. */
@media (max-width: 520px) {
  html,
  body {
    width: 100%;
    max-width: 100%;
    overflow-x: hidden;
  }

  .site-header,
  main,
  .hero,
  .page-hero,
  .section,
  .site-footer {
    max-width: 100vw;
    overflow-x: hidden;
  }

  .nav-shell,
  .container,
  .hero .container,
  .footer-grid,
  .footer-bottom .container,
  .blog-layout,
  .post-shell {
    width: calc(100vw - 32px) !important;
    max-width: calc(100vw - 32px) !important;
  }

  .hero-content {
    display: flex;
    flex-direction: column;
    align-items: stretch;
    gap: clamp(1.35rem, 6vw, 2rem);
    padding-top: clamp(3.1rem, 13vw, 4rem);
    padding-bottom: clamp(3rem, 12vw, 3.75rem);
  }

  .hero-content > *,
  .hero h1,
  .hero .lead,
  .proof-strip,
  .proof-item,
  .hero-actions {
    width: 100%;
    min-width: 0;
    max-width: 100%;
  }

  .hero .eyebrow {
    white-space: normal;
    overflow-wrap: anywhere;
  }

  .hero .lead,
  .proof-label {
    overflow-wrap: break-word;
  }

  .proof-strip {
    display: grid;
    grid-template-columns: minmax(0, 1fr);
  }

  .site-header .brand-logo {
    width: min(188px, 54vw);
  }

  .nav-toggle {
    flex: 0 0 auto;
  }
}

/* Phase: rebalance main prototype from dark-dominant to Cairnstack blue-led. */
:root {
  --brand-blue: var(--color-cairnstack-primary, #005DAA);
  --brand-navy: var(--color-cairnstack-secondary, #002D62);
  --brand-blue-rgb: 0, 93, 170;
  --brand-navy-rgb: 0, 45, 98;
  --brand-blue-soft: rgba(var(--brand-blue-rgb), 0.08);
  --brand-blue-soft-strong: rgba(var(--brand-blue-rgb), 0.14);
  --brand-blue-line: rgba(var(--brand-blue-rgb), 0.2);
  --brand-surface-blue: #f4f9fd;
}

.site-header {
  border-bottom-color: rgba(var(--brand-blue-rgb), 0.16);
  background:
    linear-gradient(90deg, rgba(var(--brand-blue-rgb), 0.035), transparent 34%),
    rgba(255, 255, 255, 0.92);
}

.site-header::after {
  position: absolute;
  inset: auto 0 0;
  height: 1px;
  content: "";
  background: linear-gradient(90deg, rgba(var(--brand-blue-rgb), 0.42), transparent 55%);
  pointer-events: none;
}

.primary-nav a {
  color: #5c646c;
}

.primary-nav a:hover,
.primary-nav a:focus-visible,
.primary-nav a[aria-current="page"] {
  color: var(--brand-blue);
}

.primary-nav a[aria-current="page"] {
  background: rgba(var(--brand-blue-rgb), 0.065);
}

.primary-nav .nav-cta,
.nav-cta {
  border-color: rgba(var(--brand-blue-rgb), 0.28);
  color: var(--brand-blue) !important;
  background: rgba(var(--brand-blue-rgb), 0.045);
}

.primary-nav .nav-cta:hover,
.primary-nav .nav-cta:focus-visible,
.nav-cta:hover,
.nav-cta:focus-visible {
  border-color: var(--brand-blue);
  color: #ffffff !important;
  background: var(--brand-blue);
}

.button.primary,
.hero .button.primary,
.page-hero .button.primary,
.dark .button.primary,
.article-cta .button.primary {
  border-color: var(--brand-blue);
  background: var(--brand-blue);
  color: #ffffff;
  box-shadow: 0 14px 36px rgba(var(--brand-blue-rgb), 0.2);
}

.button.primary:hover,
.button.primary:focus-visible,
.hero .button.primary:hover,
.hero .button.primary:focus-visible,
.page-hero .button.primary:hover,
.page-hero .button.primary:focus-visible,
.dark .button.primary:hover,
.dark .button.primary:focus-visible,
.article-cta .button.primary:hover,
.article-cta .button.primary:focus-visible {
  border-color: var(--brand-navy);
  background: var(--brand-navy);
  color: #ffffff;
  box-shadow: 0 18px 42px rgba(var(--brand-navy-rgb), 0.24);
}

.button.secondary,
.button.light,
.post-nav .button.light,
.archive-actions .button.light {
  border-color: rgba(var(--brand-blue-rgb), 0.22);
  color: var(--brand-navy);
  background: rgba(255, 255, 255, 0.78);
}

.button.secondary:hover,
.button.secondary:focus-visible,
.button.light:hover,
.button.light:focus-visible,
.post-nav .button.light:hover,
.post-nav .button.light:focus-visible,
.archive-actions .button.light:hover,
.archive-actions .button.light:focus-visible {
  border-color: rgba(var(--brand-blue-rgb), 0.44);
  color: var(--brand-blue);
  background: #ffffff;
}

.hero {
  color: #ffffff;
  background:
    radial-gradient(circle at 82% 18%, rgba(var(--brand-blue-rgb), 0.42), transparent 25rem),
    radial-gradient(circle at 16% 82%, rgba(var(--brand-blue-rgb), 0.24), transparent 22rem),
    linear-gradient(135deg, #052e50 0%, #073f69 48%, #0a2238 100%);
}

.hero::after {
  background:
    linear-gradient(90deg, rgba(3, 35, 60, 0.76), rgba(3, 54, 92, 0.32) 58%, rgba(3, 54, 92, 0.1)),
    linear-gradient(0deg, rgba(2, 32, 55, 0.46), transparent 52%);
}

.hero .eyebrow,
.dark .eyebrow {
  color: #c9e6fb;
}

.hero .lead,
.dark .lead,
.dark .muted {
  color: rgba(255, 255, 255, 0.8);
}

.hero-label,
.hero-node {
  border-color: rgba(180, 219, 245, 0.34);
}

.hero-node {
  background: rgba(var(--brand-blue-rgb), 0.58);
  box-shadow: 0 0 32px rgba(var(--brand-blue-rgb), 0.34);
}

.hero-orbit.orbit-two {
  border-color: rgba(180, 219, 245, 0.24);
}

.page-hero,
.about-hero,
main:has(.blog-layout) > .page-hero,
main:has(.tag-grid) > .page-hero {
  color: var(--ink);
  background:
    radial-gradient(circle at 78% 18%, rgba(var(--brand-blue-rgb), 0.15), transparent 24rem),
    radial-gradient(circle at 14% 86%, rgba(var(--brand-navy-rgb), 0.08), transparent 22rem),
    linear-gradient(135deg, #ffffff 0%, var(--brand-surface-blue) 48%, #eef6fb 100%);
}

.product-hero.trxio-hero,
.product-hero.mortrack-hero,
.product-hero.ptiprint-hero {
  background:
    radial-gradient(circle at 78% 18%, rgba(var(--brand-blue-rgb), 0.15), transparent 24rem),
    radial-gradient(circle at 14% 86%, rgba(var(--brand-navy-rgb), 0.08), transparent 22rem),
    linear-gradient(135deg, #ffffff 0%, var(--brand-surface-blue) 48%, #eef6fb 100%);
}

.page-hero::after,
.about-hero::after {
  background:
    linear-gradient(90deg, rgba(var(--brand-blue-rgb), 0.08), transparent 56%),
    linear-gradient(0deg, rgba(255, 255, 255, 0.46), transparent 56%);
}

main:has(.blog-layout) > .page-hero::before,
main:has(.tag-grid) > .page-hero::before {
  background:
    radial-gradient(circle at 82% 16%, rgba(var(--brand-blue-rgb), 0.16), transparent 22rem),
    linear-gradient(135deg, rgba(255, 255, 255, 0.78), rgba(244, 249, 253, 0.86));
}

.page-hero h1,
.about-hero h1,
main:has(.blog-layout) > .page-hero h1,
main:has(.tag-grid) > .page-hero h1 {
  color: var(--ink);
}

.page-hero .lead,
.about-hero .lead,
main:has(.blog-layout) > .page-hero .lead,
main:has(.tag-grid) > .page-hero .lead {
  color: var(--muted);
}

.page-hero .eyebrow,
.about-hero .eyebrow,
main:has(.blog-layout) > .page-hero .eyebrow,
main:has(.tag-grid) > .page-hero .eyebrow {
  color: var(--brand-blue);
}

.page-hero .button.secondary {
  border-color: rgba(var(--brand-blue-rgb), 0.24);
  color: var(--brand-navy);
  background: rgba(255, 255, 255, 0.8);
}

.page-hero .hero-system-visual,
.about-hero .hero-system-visual {
  opacity: 0.46;
}

.page-hero .hero-orbit,
.about-hero .hero-orbit {
  border-color: rgba(var(--brand-blue-rgb), 0.18);
}

.page-hero .hero-label,
.about-hero .hero-label {
  border-color: rgba(var(--brand-blue-rgb), 0.18);
  color: var(--brand-navy);
  background: rgba(255, 255, 255, 0.7);
}

.section.dark.signal-section,
.signal-section,
.platform-context-section,
.about-interface-section,
.solutions-integration-section {
  color: var(--ink);
  background:
    radial-gradient(circle at 84% 14%, rgba(var(--brand-blue-rgb), 0.14), transparent 24rem),
    radial-gradient(circle at 12% 90%, rgba(var(--brand-navy-rgb), 0.08), transparent 24rem),
    linear-gradient(180deg, #ffffff 0%, #f4f9fd 100%);
}

.section.dark.signal-section::before,
.signal-section::before,
.section.dark.signal-section::after,
.signal-section::after {
  opacity: 0.28;
  border-color: rgba(var(--brand-blue-rgb), 0.14);
}

.section.dark.signal-section .eyebrow,
.signal-section .eyebrow,
.platform-context-section .eyebrow,
.about-interface-section .eyebrow,
.solutions-integration-section .eyebrow {
  color: var(--brand-blue);
}

.section.dark.signal-section h2,
.signal-section h2,
.platform-context-section h2,
.about-interface-section h2,
.solutions-integration-section h2 {
  color: var(--ink);
}

.section.dark.signal-section .lead,
.signal-section .lead,
.platform-context-section .lead,
.about-interface-section .lead,
.solutions-integration-section .lead {
  color: var(--muted);
}

.issue-card,
.dark.signal-section .issue-card {
  border-color: rgba(var(--brand-blue-rgb), 0.13);
  background:
    linear-gradient(145deg, rgba(255, 255, 255, 0.94), rgba(244, 249, 253, 0.78)),
    #ffffff;
  box-shadow: 0 24px 70px rgba(0, 45, 98, 0.08);
}

.issue-card h3,
.dark.signal-section .issue-card h3 {
  color: var(--ink);
}

.issue-card p,
.dark.signal-section .issue-card p {
  color: var(--muted);
}

.issue-mark {
  background: var(--brand-blue);
}

.issue-icon {
  color: var(--brand-blue);
}

.callout,
.about-cta-section .callout,
.platform-cta-section .callout,
.article-cta {
  color: var(--ink);
  border: 1px solid rgba(var(--brand-blue-rgb), 0.18);
  background:
    radial-gradient(circle at 88% 16%, rgba(var(--brand-blue-rgb), 0.16), transparent 18rem),
    linear-gradient(135deg, #ffffff, #f4f9fd 58%, #eaf4fb);
  box-shadow: 0 28px 80px rgba(0, 45, 98, 0.09);
}

.callout::after,
.article-cta::after {
  opacity: 0.3;
  background:
    radial-gradient(circle at 18% 44%, rgba(var(--brand-blue-rgb), 0.62) 0 2px, transparent 3px),
    radial-gradient(circle at 62% 22%, rgba(var(--brand-blue-rgb), 0.52) 0 2px, transparent 3px),
    radial-gradient(circle at 84% 70%, rgba(var(--brand-blue-rgb), 0.48) 0 2px, transparent 3px),
    linear-gradient(28deg, transparent 18%, rgba(var(--brand-blue-rgb), 0.26) 18.2%, rgba(var(--brand-blue-rgb), 0.26) 18.8%, transparent 19%),
    linear-gradient(-22deg, transparent 50%, rgba(var(--brand-blue-rgb), 0.24) 50.2%, rgba(var(--brand-blue-rgb), 0.24) 50.8%, transparent 51%);
}

.callout h2,
.article-cta h2,
.callout p,
.article-cta p {
  color: inherit;
}

.callout p,
.article-cta p {
  color: var(--muted);
}

.callout .eyebrow,
.article-cta .eyebrow,
.about-cta-section .callout .eyebrow {
  color: var(--brand-blue);
}

.article-cta .button.secondary,
.callout .button.secondary,
.callout .button.light {
  border-color: rgba(var(--brand-blue-rgb), 0.24);
  color: var(--brand-navy);
  background: rgba(255, 255, 255, 0.76);
}

.card:hover,
.blog-card:hover,
.tag-card:hover,
.visual-panel:hover,
.contact-panel address:hover {
  border-color: rgba(var(--brand-blue-rgb), 0.22);
}

.blog-filter-pill[aria-current="page"],
.blog-filter-pill:hover,
.blog-filter-pill:focus-visible,
.pagination a:hover,
.pagination a:focus-visible,
.pagination .current {
  border-color: rgba(var(--brand-blue-rgb), 0.32);
  color: var(--brand-blue);
  background: rgba(var(--brand-blue-rgb), 0.08);
}

.site-footer {
  color: rgba(255, 255, 255, 0.84);
  background:
    radial-gradient(circle at 12% 16%, rgba(var(--brand-blue-rgb), 0.24), transparent 24rem),
    linear-gradient(135deg, #052d4e 0%, #063b62 45%, #08253c 100%);
}

.site-footer::before {
  background: linear-gradient(90deg, rgba(180, 219, 245, 0.42), transparent 56%);
}

.site-footer h2,
.site-footer h3,
.site-footer strong {
  color: #ffffff;
}

.site-footer a:hover,
.site-footer a:focus-visible,
.footer-nav a:hover,
.footer-nav a:focus-visible {
  color: #c9e6fb;
}

.site-footer .brand {
  background: transparent;
}

.post-content a,
.blog-card h2 a:hover,
.blog-card h2 a:focus-visible,
.blog-meta a,
.blog-source a,
.tag-card a,
.contact-line a,
.text-link,
.platform-link {
  color: var(--brand-blue);
}

.post-content a:hover,
.post-content a:focus-visible,
.text-link:hover,
.text-link:focus-visible,
.platform-link:hover,
.platform-link:focus-visible {
  color: var(--brand-navy);
}

@media (max-width: 720px) {
  .page-hero,
  .about-hero,
  main:has(.blog-layout) > .page-hero,
  main:has(.tag-grid) > .page-hero {
    background:
      radial-gradient(circle at 88% 12%, rgba(var(--brand-blue-rgb), 0.13), transparent 18rem),
      linear-gradient(180deg, #ffffff 0%, #f4f9fd 100%);
  }

  .page-hero .hero-system-visual,
  .about-hero .hero-system-visual {
    opacity: 0.22;
  }

  .primary-nav a[aria-current="page"] {
    background: rgba(var(--brand-blue-rgb), 0.08);
  }
}

/* Targeted polish: precise nav state and quieter blog archive hero. */
.primary-nav a:not(.nav-cta) {
  position: relative;
  background: transparent !important;
}

.primary-nav a:not(.nav-cta)::after {
  position: absolute;
  right: 0;
  bottom: 0.22rem;
  left: 0;
  height: 2px;
  border-radius: 999px;
  content: "";
  background: var(--brand-blue);
  opacity: 0;
  transform: scaleX(0.55);
  transform-origin: center;
  transition:
    opacity 160ms ease,
    transform 160ms ease;
}

.primary-nav a:not(.nav-cta):hover::after,
.primary-nav a:not(.nav-cta):focus-visible::after,
.primary-nav a:not(.nav-cta)[aria-current="page"]::after {
  opacity: 1;
  transform: scaleX(1);
}

.primary-nav a:not(.nav-cta)[aria-current="page"] {
  color: var(--brand-blue);
}

main:has(.blog-layout) > .page-hero,
main:has(.tag-grid) > .page-hero {
  padding: clamp(4.4rem, 7.2vw, 5.9rem) 0 clamp(3.7rem, 5.8vw, 4.8rem);
  color: var(--ink);
  background:
    radial-gradient(circle at 92% 18%, rgba(var(--brand-blue-rgb), 0.1), transparent 18rem),
    linear-gradient(112deg, #ffffff 0%, #f5fafe 52%, #eaf5fc 100%);
}

main:has(.blog-layout) > .page-hero::before,
main:has(.tag-grid) > .page-hero::before {
  inset: 0;
  z-index: -1;
  width: auto;
  aspect-ratio: auto;
  border: 0;
  border-radius: 0;
  opacity: 0.62;
  background:
    linear-gradient(116deg, transparent 0 58%, rgba(var(--brand-blue-rgb), 0.075) 58.12%, transparent 58.42%),
    linear-gradient(145deg, transparent 0 73%, rgba(var(--brand-blue-rgb), 0.055) 73.12%, transparent 73.44%),
    radial-gradient(circle at 86% 30%, rgba(var(--brand-blue-rgb), 0.08), transparent 18rem);
}

main:has(.blog-layout) > .page-hero::after,
main:has(.tag-grid) > .page-hero::after {
  position: absolute;
  top: 50%;
  right: max(2rem, calc((100vw - var(--container-wide)) / 2));
  bottom: auto;
  left: auto;
  z-index: -1;
  width: min(32vw, 420px);
  height: clamp(7rem, 12vw, 10rem);
  border: solid rgba(var(--brand-blue-rgb), 0.16);
  border-width: 1px 0;
  content: "";
  background:
    linear-gradient(90deg, transparent, rgba(var(--brand-blue-rgb), 0.12), transparent),
    linear-gradient(145deg, transparent 0 49%, rgba(var(--brand-blue-rgb), 0.12) 49.25%, transparent 49.7%);
  opacity: 0.42;
  transform: translateY(-50%);
  pointer-events: none;
}

@media (max-width: 979px) {
  .primary-nav a:not(.nav-cta)::after {
    right: auto;
    bottom: 0.46rem;
    width: 1.9rem;
    transform-origin: left;
  }
}

@media (max-width: 720px) {
  main:has(.blog-layout) > .page-hero,
  main:has(.tag-grid) > .page-hero {
    padding: clamp(3.5rem, 11vw, 4.4rem) 0 clamp(3rem, 9vw, 3.8rem);
    background:
      radial-gradient(circle at 100% 8%, rgba(var(--brand-blue-rgb), 0.1), transparent 14rem),
      linear-gradient(180deg, #ffffff 0%, #f4f9fd 100%);
  }

  main:has(.blog-layout) > .page-hero::before,
  main:has(.tag-grid) > .page-hero::before {
    opacity: 0.34;
  }

  main:has(.blog-layout) > .page-hero::after,
  main:has(.tag-grid) > .page-hero::after {
    display: none;
  }
}

@media (max-width: 520px) {
  main:has(.blog-layout) > .page-hero .container,
  main:has(.tag-grid) > .page-hero .container {
    width: calc(100vw - 32px) !important;
    max-width: calc(100vw - 32px) !important;
  }

  main:has(.blog-layout) > .page-hero .lead,
  main:has(.tag-grid) > .page-hero .lead {
    max-width: 100%;
    overflow-wrap: break-word;
    text-wrap: auto;
  }

  main:has(.blog-layout) > .page-hero .button-row,
  main:has(.tag-grid) > .page-hero .button-row {
    width: 100%;
    max-width: 100%;
  }

  .blog-list-filters {
    flex-wrap: wrap;
    margin-inline: 0;
    padding: 0 0 1rem;
    overflow: visible;
  }

  .blog-filter-label {
    flex: 1 0 100%;
  }

  .blog-filter-pill {
    flex: 0 1 auto;
  }
}

/* Homepage flagship platforms: balanced parent-company ecosystem grid. */
.ecosystem-section .platform-equal-grid {
  --flagship-gap: clamp(1rem, 2vw, 1.35rem);
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  align-items: stretch;
  gap: var(--flagship-gap);
}

.ecosystem-section .platform-equal-grid::before {
  display: none;
}

.ecosystem-section .platform-equal-grid .platform-panel {
  min-height: clamp(305px, 23vw, 350px);
  display: grid;
  grid-template-rows: auto minmax(0, 1fr) auto auto;
  align-content: stretch;
  gap: clamp(1rem, 1.6vw, 1.25rem);
  padding: clamp(1.35rem, 2vw, 1.75rem);
  border-color: rgba(16, 17, 18, 0.1);
  border-radius: 14px;
  color: var(--ink);
  background:
    linear-gradient(145deg, rgba(255, 255, 255, 0.94), rgba(248, 249, 250, 0.78)),
    #ffffff;
  box-shadow:
    0 1px 0 rgba(255, 255, 255, 0.92) inset,
    0 18px 52px rgba(0, 45, 98, 0.065);
}

.ecosystem-section .platform-equal-grid .platform-panel::before {
  top: 0;
  right: 0;
  left: 0;
  width: auto;
  height: 3px;
  border-radius: 14px 14px 0 0;
  background: linear-gradient(90deg, var(--platform-accent, var(--brand-blue)), transparent 78%);
  box-shadow: none;
}

.ecosystem-section .platform-equal-grid .platform-panel::after {
  display: none;
}

.ecosystem-section .platform-equal-grid .platform-panel:hover,
.ecosystem-section .platform-equal-grid .platform-panel:focus-visible,
.has-scroll-reveal .ecosystem-section .platform-equal-grid .platform-panel.reveal-on-scroll.is-visible:hover,
.has-scroll-reveal .ecosystem-section .platform-equal-grid .platform-panel.reveal-on-scroll.is-visible:focus-visible {
  border-color: color-mix(in srgb, var(--platform-accent, var(--brand-blue)) 36%, rgba(16, 17, 18, 0.12));
  background:
    linear-gradient(145deg, rgba(255, 255, 255, 0.98), rgba(247, 250, 252, 0.86)),
    #ffffff;
  box-shadow:
    0 1px 0 rgba(255, 255, 255, 0.95) inset,
    0 24px 64px rgba(0, 45, 98, 0.09);
  transform: translateY(-3px);
}

.ecosystem-section .platform-logo-wrap {
  min-height: 54px;
  display: flex;
  align-items: center;
  justify-content: flex-start;
}

.ecosystem-section .platform-logo {
  display: block;
  width: auto;
  max-width: min(190px, 82%);
  max-height: 42px;
  object-fit: contain;
  object-position: left center;
}

.ecosystem-section .platform-logo-trxio {
  max-width: min(166px, 76%);
  max-height: 38px;
}

.ecosystem-section .platform-logo-mortrack {
  max-width: min(188px, 84%);
  max-height: 42px;
}

.ecosystem-section .platform-logo-ptiprint {
  max-width: min(192px, 84%);
  max-height: 42px;
}

.ecosystem-section .platform-equal-grid .platform-panel h3 {
  max-width: none;
  margin-bottom: 0.55rem;
  color: var(--ink);
  font-size: clamp(1.04rem, 1.05vw, 1.18rem);
  line-height: 1.28;
}

.ecosystem-section .platform-equal-grid .platform-panel p {
  max-width: none;
  color: var(--muted);
  font-size: 0.95rem;
  line-height: 1.66;
}

.ecosystem-section .platform-equal-grid .platform-chips {
  align-self: end;
  margin-top: 0;
}

.ecosystem-section .platform-equal-grid .platform-chips span {
  border-color: color-mix(in srgb, var(--platform-accent, var(--brand-blue)) 18%, rgba(16, 17, 18, 0.1));
  color: color-mix(in srgb, var(--platform-accent-strong, var(--brand-navy)) 70%, var(--ink));
  background: color-mix(in srgb, var(--platform-accent, var(--brand-blue)) 8%, #ffffff);
}

.ecosystem-section .platform-equal-grid .platform-link {
  align-self: end;
  margin-top: 0;
  color: var(--platform-accent-strong, var(--brand-blue));
  font-size: 0.93rem;
  font-weight: 760;
}

@media (min-width: 720px) and (max-width: 959px) {
  .ecosystem-section .platform-equal-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .ecosystem-section .platform-equal-grid .platform-panel:nth-child(3) {
    grid-column: 1 / -1;
    width: calc((100% - var(--flagship-gap)) / 2);
    justify-self: center;
  }
}

@media (max-width: 719px) {
  .ecosystem-section .platform-equal-grid {
    grid-template-columns: 1fr;
  }

  .ecosystem-section .platform-equal-grid .platform-panel {
    min-height: 0;
    gap: 0.95rem;
  }
}

@media (max-width: 430px) {
  .ecosystem-section .platform-equal-grid .platform-panel {
    padding: 1.18rem;
  }

  .ecosystem-section .platform-logo-wrap {
    min-height: 48px;
  }

  .ecosystem-section .platform-logo {
    max-width: min(176px, 88%);
    max-height: 38px;
  }

  .ecosystem-section .platform-equal-grid .platform-panel h3 {
    font-size: 1.02rem;
  }
}

/* Homepage conversation topics: clickable solution cards. */
.signal-section .issue-grid {
  align-items: stretch;
}

.issue-link-card {
  min-height: 100%;
  display: grid;
  grid-template-rows: auto auto auto minmax(0, 1fr) auto;
  text-decoration: none;
  cursor: pointer;
  transition:
    border-color 180ms ease,
    background 180ms ease,
    box-shadow 180ms ease,
    color 180ms ease,
    transform 180ms ease;
}

.issue-link-card .issue-icon,
.issue-link-card .issue-mark,
.issue-link-card h3,
.issue-link-card p,
.issue-link-card .issue-cta {
  transition:
    border-color 180ms ease,
    background 180ms ease,
    box-shadow 180ms ease,
    color 180ms ease,
    opacity 180ms ease,
    transform 180ms ease;
}

.issue-cta {
  align-self: end;
  margin-top: clamp(1rem, 2vw, 1.35rem);
  color: var(--brand-blue);
  font-size: 0.9rem;
  font-weight: 760;
}

.issue-cta span {
  display: inline-block;
  transition: transform 180ms ease;
}

.signal-section .issue-card.issue-link-card:hover,
.signal-section .issue-card.issue-link-card:focus-visible,
.dark.signal-section .issue-card.issue-link-card:hover,
.dark.signal-section .issue-card.issue-link-card:focus-visible {
  border-color: var(--brand-blue);
  color: #ffffff;
  background-color: var(--brand-blue);
  background:
    linear-gradient(145deg, rgba(var(--brand-blue-rgb), 0.98), rgba(var(--brand-navy-rgb), 0.96)),
    var(--brand-blue);
  box-shadow:
    0 1px 0 rgba(255, 255, 255, 0.2) inset,
    0 28px 74px rgba(0, 45, 98, 0.22);
  outline: 0;
  transform: translateY(-4px);
}

.signal-section .issue-card.issue-link-card:focus-visible,
.dark.signal-section .issue-card.issue-link-card:focus-visible {
  box-shadow:
    0 0 0 3px rgba(255, 255, 255, 0.72),
    0 0 0 6px rgba(var(--brand-blue-rgb), 0.28),
    0 1px 0 rgba(255, 255, 255, 0.2) inset,
    0 28px 74px rgba(0, 45, 98, 0.22);
}

.signal-section .issue-card.issue-link-card:hover .issue-icon,
.signal-section .issue-card.issue-link-card:focus-visible .issue-icon,
.dark.signal-section .issue-card.issue-link-card:hover .issue-icon,
.dark.signal-section .issue-card.issue-link-card:focus-visible .issue-icon {
  border-color: rgba(255, 255, 255, 0.3);
  color: #ffffff;
  background: rgba(255, 255, 255, 0.12);
  box-shadow: 0 0 0 5px rgba(255, 255, 255, 0.08);
}

.signal-section .issue-card.issue-link-card:hover .issue-mark,
.signal-section .issue-card.issue-link-card:focus-visible .issue-mark,
.dark.signal-section .issue-card.issue-link-card:hover .issue-mark,
.dark.signal-section .issue-card.issue-link-card:focus-visible .issue-mark {
  background: linear-gradient(90deg, #ffffff, rgba(255, 255, 255, 0.38));
}

.signal-section .issue-card.issue-link-card:hover h3,
.signal-section .issue-card.issue-link-card:focus-visible h3,
.signal-section .issue-card.issue-link-card:hover .issue-cta,
.signal-section .issue-card.issue-link-card:focus-visible .issue-cta,
.dark.signal-section .issue-card.issue-link-card:hover h3,
.dark.signal-section .issue-card.issue-link-card:focus-visible h3,
.dark.signal-section .issue-card.issue-link-card:hover .issue-cta,
.dark.signal-section .issue-card.issue-link-card:focus-visible .issue-cta {
  color: #ffffff;
}

.signal-section .issue-card.issue-link-card:hover p,
.signal-section .issue-card.issue-link-card:focus-visible p,
.dark.signal-section .issue-card.issue-link-card:hover p,
.dark.signal-section .issue-card.issue-link-card:focus-visible p {
  color: rgba(255, 255, 255, 0.86);
  opacity: 0.86;
}

.signal-section .issue-card.issue-link-card:hover .issue-cta span,
.signal-section .issue-card.issue-link-card:focus-visible .issue-cta span,
.dark.signal-section .issue-card.issue-link-card:hover .issue-cta span,
.dark.signal-section .issue-card.issue-link-card:focus-visible .issue-cta span {
  color: #ffffff;
  transform: translateX(5px);
}

.solutions-topic-section {
  background:
    radial-gradient(circle at 12% 16%, rgba(var(--brand-blue-rgb), 0.055), transparent 24rem),
    linear-gradient(180deg, #ffffff 0%, #f4f9fd 100%);
}

.solution-topic-grid {
  display: grid;
  gap: clamp(0.9rem, 1.8vw, 1.2rem);
}

.solution-topic-card {
  scroll-margin-top: 96px;
  min-height: 100%;
  padding: clamp(1.2rem, 2.2vw, 1.65rem);
  border: 1px solid rgba(var(--brand-blue-rgb), 0.13);
  border-radius: 12px;
  background:
    linear-gradient(145deg, rgba(255, 255, 255, 0.95), rgba(244, 249, 253, 0.78)),
    #ffffff;
  box-shadow: 0 18px 56px rgba(0, 45, 98, 0.065);
}

.solution-topic-card:target {
  border-color: rgba(var(--brand-blue-rgb), 0.42);
  box-shadow:
    var(--focus-ring),
    0 22px 64px rgba(0, 45, 98, 0.1);
}

.solution-topic-card:focus {
  outline: 0;
}

.solution-topic-number {
  display: block;
  margin-bottom: 0.85rem;
  color: var(--brand-blue);
  font-size: 0.78rem;
  font-weight: 820;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.solution-topic-card h3 {
  max-width: 20rem;
  margin-bottom: 0.62rem;
  color: var(--ink);
  font-size: clamp(1.04rem, 1.2vw, 1.18rem);
  line-height: 1.3;
}

.solution-topic-card p {
  margin: 0;
  color: var(--muted);
  font-size: 0.95rem;
  line-height: 1.66;
}

@media (min-width: 760px) {
  .solution-topic-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (min-width: 1080px) {
  .solution-topic-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

@media (max-width: 520px) {
  .issue-link-card {
    grid-template-rows: auto auto auto auto auto;
  }

  .issue-cta {
    margin-top: 0.9rem;
  }

  .solution-topic-card {
    padding: 1.15rem;
  }
}

/* Homepage integrations: blue-led parent-brand feature section. */
.integration-feature-section {
  position: relative;
  isolation: isolate;
  overflow: hidden;
  color: #ffffff;
  border-top: 1px solid rgba(var(--brand-blue-rgb), 0.24);
  border-bottom: 1px solid rgba(var(--brand-navy-rgb), 0.28);
  background:
    radial-gradient(circle at 13% 18%, rgba(255, 255, 255, 0.15), transparent 18rem),
    radial-gradient(circle at 88% 74%, rgba(255, 255, 255, 0.08), transparent 24rem),
    linear-gradient(145deg, rgba(var(--brand-blue-rgb), 0.98), rgba(var(--brand-navy-rgb), 0.97)),
    var(--brand-blue);
}

.integration-feature-section::before {
  position: absolute;
  inset: 0;
  z-index: 0;
  content: "";
  background:
    linear-gradient(110deg, rgba(255, 255, 255, 0.1), transparent 36%),
    linear-gradient(30deg, transparent 0 58%, rgba(255, 255, 255, 0.06) 58.14%, transparent 58.36%);
  opacity: 0.72;
  pointer-events: none;
}

.integration-feature-section > .container {
  position: relative;
  z-index: 1;
  align-items: center;
  gap: clamp(2rem, 5vw, 5rem);
}

.integration-feature-section .eyebrow {
  color: rgba(255, 255, 255, 0.74);
}

.integration-feature-section h2 {
  max-width: 34rem;
  color: #ffffff;
  text-wrap: balance;
}

.integration-feature-section p {
  max-width: 40rem;
  color: rgba(255, 255, 255, 0.86);
}

.integration-feature-section .integration-panel {
  width: 100%;
  max-width: 560px;
  justify-self: end;
  padding: clamp(1rem, 2vw, 1.35rem);
  border: 1px solid rgba(255, 255, 255, 0.2);
  border-radius: 16px;
  background:
    linear-gradient(145deg, rgba(255, 255, 255, 0.97), rgba(244, 249, 253, 0.9)),
    #ffffff;
  box-shadow:
    0 1px 0 rgba(255, 255, 255, 0.72) inset,
    0 28px 78px rgba(0, 30, 66, 0.28);
}

.integration-feature-section .integration-map {
  min-height: clamp(310px, 29vw, 390px);
  border-color: rgba(var(--brand-blue-rgb), 0.16);
  border-radius: 12px;
  background:
    radial-gradient(circle at center, rgba(var(--brand-blue-rgb), 0.1), transparent 9rem),
    linear-gradient(rgba(var(--brand-blue-rgb), 0.06) 1px, transparent 1px),
    linear-gradient(90deg, rgba(var(--brand-blue-rgb), 0.06) 1px, transparent 1px),
    linear-gradient(180deg, rgba(255, 255, 255, 0.94), rgba(244, 249, 253, 0.82));
  background-size: auto, 34px 34px, 34px 34px, auto;
}

.integration-feature-section .integration-map::before {
  border-color: rgba(var(--brand-blue-rgb), 0.14);
}

.integration-feature-section .integration-map::after {
  border-color: rgba(var(--brand-blue-rgb), 0.18);
}

.integration-feature-section .integration-hub {
  color: #ffffff;
  background:
    linear-gradient(145deg, rgba(var(--brand-blue-rgb), 0.98), rgba(var(--brand-navy-rgb), 0.97)),
    var(--brand-blue);
  box-shadow:
    0 1px 0 rgba(255, 255, 255, 0.2) inset,
    0 18px 48px rgba(0, 45, 98, 0.22);
}

.integration-feature-section .integration-node {
  border-color: rgba(var(--brand-blue-rgb), 0.16);
  color: var(--brand-navy);
  background: rgba(255, 255, 255, 0.88);
  box-shadow: 0 12px 30px rgba(0, 45, 98, 0.08);
}

@media (max-width: 900px) {
  .integration-feature-section > .container {
    grid-template-columns: 1fr;
    gap: 2rem;
  }

  .integration-feature-section .integration-panel {
    justify-self: stretch;
    max-width: none;
  }
}

@media (max-width: 520px) {
  .integration-feature-section {
    background:
      radial-gradient(circle at 18% 10%, rgba(255, 255, 255, 0.14), transparent 14rem),
      linear-gradient(150deg, rgba(var(--brand-blue-rgb), 0.99), rgba(var(--brand-navy-rgb), 0.98)),
      var(--brand-blue);
  }

  .integration-feature-section .integration-panel {
    padding: 0.75rem;
    border-radius: 12px;
  }

.integration-feature-section .integration-map {
    min-height: 390px;
  }
}

/* Shared section intro rhythm: stacked headline and copy. */
.ecosystem-intro.section-intro,
.section-intro.section-intro--stacked {
  grid-template-columns: 1fr;
  align-items: start;
  max-width: min(980px, 100%);
}

.ecosystem-intro.section-intro h2,
.section-intro.section-intro--stacked h2 {
  max-width: 860px;
}

.ecosystem-intro.section-intro .lead,
.section-intro.section-intro--stacked .lead {
  max-width: 760px;
  margin-top: clamp(0.1rem, 0.4vw, 0.25rem);
}

@media (max-width: 520px) {
  .ecosystem-intro.section-intro,
  .section-intro.section-intro--stacked {
    gap: 0.85rem;
    margin-bottom: 1.75rem;
  }
}

/* Reusable blue-led content feature sections. */
.blue-feature-section {
  color: #ffffff;
  border-top-color: rgba(var(--brand-blue-rgb), 0.28);
  border-bottom-color: rgba(var(--brand-navy-rgb), 0.34);
  background:
    radial-gradient(circle at 16% 14%, rgba(255, 255, 255, 0.16), transparent 18rem),
    radial-gradient(circle at 86% 78%, rgba(255, 255, 255, 0.1), transparent 22rem),
    linear-gradient(145deg, rgba(var(--brand-blue-rgb), 0.98), rgba(var(--brand-navy-rgb), 0.97)),
    var(--brand-blue);
}

.blue-feature-section::before {
  display: block;
  position: absolute;
  inset: 0;
  z-index: 0;
  content: "";
  background:
    linear-gradient(90deg, rgba(255, 255, 255, 0.11), transparent 36%),
    linear-gradient(135deg, transparent 0 49.7%, rgba(255, 255, 255, 0.09) 49.85%, transparent 50.15%),
    linear-gradient(35deg, transparent 0 69.7%, rgba(255, 255, 255, 0.06) 69.85%, transparent 70.15%);
  opacity: 0.62;
  pointer-events: none;
}

.blue-feature-section::after {
  display: block;
  position: absolute;
  inset: auto 0 0;
  z-index: 0;
  height: 1px;
  content: "";
  background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.28), transparent);
  pointer-events: none;
}

.blue-feature-section > .container {
  position: relative;
  z-index: 1;
  align-items: center;
  gap: clamp(2rem, 4vw, 4.5rem);
}

.blue-feature-section .thesis-heading {
  width: auto;
  max-width: 36rem;
  padding: 0;
  border: 0;
  border-radius: 0;
  color: #ffffff;
  background: transparent;
  box-shadow: none;
  backdrop-filter: none;
}

.blue-feature-section .thesis-heading .eyebrow {
  color: rgba(255, 255, 255, 0.74);
}

.blue-feature-section .thesis-heading h2 {
  max-width: 34rem;
  color: #ffffff;
  text-wrap: balance;
}

.blue-feature-section .thesis-copy {
  max-width: none;
  margin-top: 0;
  border-color: rgba(255, 255, 255, 0.18);
  border-radius: 14px;
  color: rgba(255, 255, 255, 0.88);
  background: rgba(255, 255, 255, 0.105);
  box-shadow:
    0 1px 0 rgba(255, 255, 255, 0.2) inset,
    0 24px 72px rgba(0, 30, 66, 0.26);
  backdrop-filter: blur(14px) saturate(1.04);
}

.blue-feature-section .thesis-copy::before {
  background: linear-gradient(90deg, rgba(255, 255, 255, 0.62), rgba(255, 255, 255, 0.16), transparent);
}

.blue-feature-section .thesis-copy p,
.blue-feature-section .thesis-copy h3 {
  color: rgba(255, 255, 255, 0.88);
}

.blue-feature-section .thesis-copy h3 {
  max-width: 24rem;
  margin-bottom: 0.65rem;
  color: #ffffff;
}

.blue-feature-section .thesis-copy > div {
  min-width: 0;
}

.blue-feature-section .thesis-copy > div + div {
  border-left: 1px solid rgba(255, 255, 255, 0.14);
  padding-left: clamp(1.25rem, 2.4vw, 2.4rem);
}

.blue-feature-section .cairn-mark span {
  border-color: rgba(255, 255, 255, 0.32);
  background: linear-gradient(145deg, rgba(255, 255, 255, 0.88), rgba(201, 230, 251, 0.46));
}

@media (max-width: 919px) {
  .blue-feature-section > .container {
    gap: 1.75rem;
  }

  .blue-feature-section .thesis-copy {
    grid-template-columns: 1fr;
  }

  .blue-feature-section .thesis-copy > div + div {
    border-left: 0;
    border-top: 1px solid rgba(255, 255, 255, 0.14);
    padding-top: 1.25rem;
    padding-left: 0;
  }
}

@media (max-width: 720px) {
  .blue-feature-section {
    background:
      radial-gradient(circle at 20% 10%, rgba(255, 255, 255, 0.15), transparent 15rem),
      linear-gradient(150deg, rgba(var(--brand-blue-rgb), 0.99), rgba(var(--brand-navy-rgb), 0.98)),
      var(--brand-blue);
  }

  .blue-feature-section .thesis-copy {
    padding: 1.15rem;
    border-radius: 10px;
  }

  .blue-feature-section .thesis-heading h2 {
    max-width: 24rem;
  }
}

/* Standard internal page hero alignment. */
.about-hero {
  min-height: auto;
  padding: clamp(4.65rem, 7.2vw, 6.85rem) 0 clamp(4.25rem, 6.3vw, 5.85rem);
  color: var(--ink);
  background:
    radial-gradient(circle at 88% 20%, rgba(var(--brand-blue-rgb), 0.12), transparent 22rem),
    linear-gradient(180deg, #ffffff 0%, #f4f9fd 100%);
}

.about-hero-content {
  position: relative;
  z-index: 2;
  width: min(100% - clamp(2rem, 5vw, 4.5rem), var(--container-wide));
  max-width: var(--container-wide);
  margin-inline: auto;
  display: grid;
  justify-items: start;
  align-content: center;
}

.about-hero h1 {
  max-width: 46rem;
  color: var(--ink);
  font-size: clamp(2.25rem, 4vw, 3.55rem);
  line-height: 1.03;
  letter-spacing: 0;
  text-wrap: balance;
}

.about-hero .lead {
  max-width: 43rem;
  margin-top: clamp(1rem, 1.8vw, 1.35rem);
  color: var(--muted);
  font-size: clamp(1.02rem, 1.08vw, 1.15rem);
  line-height: 1.72;
}

.about-hero .button-row {
  margin-top: clamp(1.55rem, 2.4vw, 2.05rem);
}

.about-hero .hero-system-visual {
  top: 12%;
  right: max(-8rem, calc((100vw - var(--container-wide)) / 2 - 13rem));
  bottom: auto;
  left: auto;
  width: min(36vw, 510px);
  opacity: 0.28;
  pointer-events: none;
}

@media (max-width: 1100px) {
  .about-hero .hero-system-visual {
    display: none;
  }
}

@media (max-width: 720px) {
  .about-hero {
    padding: clamp(3.45rem, 10vw, 4.4rem) 0 clamp(3.05rem, 9vw, 3.9rem);
    background:
      radial-gradient(circle at 100% 8%, rgba(var(--brand-blue-rgb), 0.1), transparent 14rem),
      linear-gradient(180deg, #ffffff 0%, #f4f9fd 100%);
  }

  .about-hero .hero-system-visual {
    display: none;
  }

  .about-hero h1 {
    max-width: 100%;
    font-size: clamp(1.85rem, 8vw, 2.34rem);
  }

  .about-hero .lead {
    max-width: 100%;
    font-size: 1rem;
    line-height: 1.68;
  }
}

@media (max-width: 520px) {
  .about-hero-content {
    width: calc(100vw - 32px) !important;
    max-width: calc(100vw - 32px) !important;
  }
}

/* Full UI QA pass: section-aware button contrast hardening. */
.button,
.nav-cta,
.blog-filter-pill,
.pagination-link,
.pagination-control {
  text-decoration: none;
  -webkit-tap-highlight-color: rgba(var(--brand-blue-rgb), 0.16);
}

.button:focus-visible,
.nav-cta:focus-visible,
.blog-filter-pill:focus-visible,
.pagination-link:focus-visible,
.pagination-control:focus-visible,
.platform-link:focus-visible,
.text-link:focus-visible,
.site-footer a:focus-visible,
.footer-nav a:focus-visible {
  outline: 0;
  box-shadow:
    0 0 0 3px #ffffff,
    0 0 0 6px rgba(var(--brand-blue-rgb), 0.34);
}

.button.secondary,
.button.light,
.post-nav .button.light,
.archive-actions .button.light,
.callout .button.secondary,
.callout .button.light,
.article-cta .button.secondary,
.section.dark.signal-section .button.secondary,
.section.dark.signal-section .button.light,
.signal-section .button.secondary,
.platform-context-section .button.secondary,
.about-interface-section .button.secondary,
.solutions-integration-section .button.secondary {
  border-color: rgba(var(--brand-blue-rgb), 0.38);
  color: var(--brand-blue);
  background: rgba(255, 255, 255, 0.88);
  box-shadow: 0 10px 28px rgba(0, 45, 98, 0.06);
}

.button.secondary:hover,
.button.secondary:focus-visible,
.button.light:hover,
.button.light:focus-visible,
.post-nav .button.light:hover,
.post-nav .button.light:focus-visible,
.archive-actions .button.light:hover,
.archive-actions .button.light:focus-visible,
.callout .button.secondary:hover,
.callout .button.secondary:focus-visible,
.callout .button.light:hover,
.callout .button.light:focus-visible,
.article-cta .button.secondary:hover,
.article-cta .button.secondary:focus-visible,
.section.dark.signal-section .button.secondary:hover,
.section.dark.signal-section .button.secondary:focus-visible,
.section.dark.signal-section .button.light:hover,
.section.dark.signal-section .button.light:focus-visible,
.signal-section .button.secondary:hover,
.signal-section .button.secondary:focus-visible {
  border-color: var(--brand-blue);
  color: #ffffff;
  background: var(--brand-blue);
  box-shadow:
    0 1px 0 rgba(255, 255, 255, 0.18) inset,
    0 16px 38px rgba(var(--brand-blue-rgb), 0.2);
}

.button.secondary:active,
.button.light:active,
.button.primary:active,
.nav-cta:active,
.blog-filter-pill:active,
.pagination-link:active,
.pagination-control:active {
  transform: translateY(0);
}

.hero .button.secondary,
.dark:not(.signal-section) .button.secondary {
  border-color: rgba(255, 255, 255, 0.52);
  color: #ffffff;
  background: rgba(255, 255, 255, 0.1);
  box-shadow: none;
}

.hero .button.secondary:hover,
.hero .button.secondary:focus-visible,
.dark:not(.signal-section) .button.secondary:hover,
.dark:not(.signal-section) .button.secondary:focus-visible {
  border-color: #ffffff;
  color: var(--brand-navy);
  background: #ffffff;
}

.button[aria-disabled="true"],
.button:disabled,
.nav-cta[aria-disabled="true"],
.pagination-control.is-disabled,
.pagination-link.is-disabled {
  cursor: not-allowed;
  opacity: 0.58;
  transform: none;
  box-shadow: none;
}

@media (max-width: 520px) {
  .hero .hero-content {
    width: calc(100vw - 32px) !important;
    max-width: calc(100vw - 32px) !important;
    margin-inline: auto;
    box-sizing: border-box;
    overflow: visible;
  }

  .hero h1,
  .hero .lead {
    width: 100%;
    max-width: min(100%, 20.75rem);
    box-sizing: border-box;
    overflow-wrap: break-word;
    text-wrap: balance;
  }

  .hero h1 {
    font-size: clamp(1.86rem, 7.15vw, 2.14rem);
    line-height: 1.1;
  }

  .hero .lead {
    text-wrap: auto;
  }

  .hero .hero-actions,
  .hero .proof-strip,
  .hero .proof-item {
    width: 100%;
    max-width: 100%;
    box-sizing: border-box;
  }

  .hero .button {
    width: 100%;
    min-width: 0;
    max-width: 100%;
    box-sizing: border-box;
    justify-content: center;
  }

  .hero .proof-label {
    display: block;
    max-width: min(100%, 20.75rem);
  }
}

/* Revert QA: keep restored hero sections inside narrow mobile viewports. */
@media (max-width: 520px) {
  .hero,
  .page-hero {
    overflow-x: clip;
  }

  .hero .container,
  .page-hero .container,
  .hero .hero-content,
  .about-hero-content,
  main:has(.blog-layout) > .page-hero .container,
  main:has(.tag-grid) > .page-hero .container {
    width: min(calc(100vw - 32px), 22rem) !important;
    max-width: min(calc(100vw - 32px), 22rem) !important;
    margin-inline: auto;
    box-sizing: border-box;
  }

  .hero .eyebrow,
  .page-hero .eyebrow,
  .hero h1,
  .page-hero h1,
  .hero .lead,
  .page-hero .lead,
  .hero-actions,
  .page-hero .button-row {
    width: 100%;
    max-width: min(100%, 20.75rem);
    min-width: 0;
    box-sizing: border-box;
    overflow-wrap: break-word;
    word-break: normal;
    white-space: normal;
  }

  .hero-actions,
  .page-hero .button-row {
    display: grid;
    grid-template-columns: minmax(0, 1fr);
  }

  .hero .button,
  .page-hero .button {
    width: 100%;
    min-width: 0;
    max-width: 100%;
    box-sizing: border-box;
  }
}

/* Final narrow-viewport containment after hero revert. */
@media (max-width: 520px) {
  html,
  body {
    max-width: 100%;
    overflow-x: hidden;
  }

  main,
  .section,
  .hero,
  .page-hero,
  .site-footer {
    max-width: 100vw;
    overflow-x: hidden;
  }

  .container,
  .hero .container,
  .page-hero .container,
  .about-hero-content,
  .footer-grid,
  .footer-bottom .container,
  .blog-layout,
  .post-shell,
  main:has(.blog-layout) > .page-hero .container,
  main:has(.tag-grid) > .page-hero .container {
    width: calc(100vw - 32px) !important;
    max-width: calc(100vw - 32px) !important;
    margin-left: 16px !important;
    margin-right: 16px !important;
    box-sizing: border-box;
  }

  .hero .hero-content,
  .hero-content,
  .button-row,
  .hero-actions,
  .archive-actions,
  .article-cta .button-row {
    width: 100% !important;
    max-width: 100% !important;
    min-width: 0;
    margin-left: 0 !important;
    margin-right: 0 !important;
    box-sizing: border-box;
  }

  h1,
  h2,
  h3,
  p,
  .lead,
  .eyebrow,
  .hero h1,
  .page-hero h1,
  .hero .lead,
  .page-hero .lead,
  .hero .eyebrow,
  .page-hero .eyebrow {
    max-width: 100% !important;
    min-width: 0;
    overflow-wrap: break-word;
    word-break: normal;
  }

  .hero h1 {
    font-size: clamp(1.78rem, 8.6vw, 2.08rem);
  }

  .button,
  .hero .button,
  .page-hero .button {
    width: 100%;
    min-width: 0;
    max-width: 100% !important;
  }

  .blog-list-filters {
    display: grid !important;
    grid-template-columns: repeat(2, max-content);
    align-items: center;
    gap: 0.55rem;
    margin-inline: 0 !important;
    padding-inline: 0 !important;
    overflow: visible !important;
  }

  .blog-filter-label {
    grid-column: 1 / -1;
  }

  .blog-filter-pill {
    flex: 0 0 auto;
    max-width: 100%;
    white-space: nowrap;
  }
}

/* Final hero revert mobile QA: combined homepage container/content class. */
@media (max-width: 520px) {
  .hero .container.hero-content {
    width: calc(100vw - 32px) !important;
    max-width: calc(100vw - 32px) !important;
    margin-left: 16px !important;
    margin-right: 16px !important;
  }

  .hero .eyebrow,
  .hero h1,
  .hero .lead,
  .page-hero h1,
  .page-hero .lead,
  .section h2,
  .section p,
  .blog-card h2,
  .blog-card > p {
    max-width: min(100%, 19.25rem) !important;
  }

  .hero-actions,
  .page-hero .button-row {
    max-width: min(100%, 19.25rem) !important;
  }
}

@media (max-width: 360px) {
  .hero .eyebrow,
  .hero h1,
  .hero .lead,
  .page-hero h1,
  .page-hero .lead,
  .section h2,
  .section p,
  .blog-card h2,
  .blog-card > p,
  .hero-actions,
  .page-hero .button-row {
    max-width: min(100%, 17rem) !important;
  }
}