:root {
  color-scheme: light;
  --ink: #14272b;
  --ink-soft: #294047;
  --paper: #f2f0e9;
  --paper-deep: #e6e1d6;
  --white: #fffefa;
  --heat: #d95d32;
  --heat-deep: #8f3219;
  --heat-pale: #f3d4c6;
  --cool: #86a9aa;
  --line: rgba(20, 39, 43, 0.18);
  --line-light: rgba(255, 255, 255, 0.18);
  --shadow: 0 24px 70px rgba(20, 39, 43, 0.12);
  --radius: 1.25rem;
  --radius-small: 0.75rem;
  --shell: min(1180px, calc(100vw - 3rem));
  --font-display: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  --font-body: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

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

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: var(--font-body);
  font-size: 1rem;
  line-height: 1.65;
  text-rendering: optimizeLegibility;
}

body::before {
  position: fixed;
  z-index: -1;
  inset: 0;
  background-image: linear-gradient(rgba(20, 39, 43, 0.025) 1px, transparent 1px), linear-gradient(90deg, rgba(20, 39, 43, 0.025) 1px, transparent 1px);
  background-size: 42px 42px;
  content: "";
  pointer-events: none;
}

a {
  color: inherit;
}

button,
input,
select,
textarea {
  color: inherit;
  font: inherit;
}

button,
select {
  cursor: pointer;
}

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

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

h1,
h2,
h3 {
  font-family: var(--font-display);
  font-weight: 700;
  letter-spacing: -0.018em;
  line-height: 1.12;
}

h1 {
  max-width: 18ch;
  margin-bottom: 1.5rem;
  font-size: clamp(2.4rem, calc(1.9rem + 2.3vw), 5rem);
  overflow-wrap: break-word;
  text-wrap: balance;
}

h2 {
  margin-bottom: 1rem;
  font-size: clamp(1.75rem, calc(1.5rem + 1.5vw), 3.5rem);
  text-wrap: balance;
}

h3 {
  margin-bottom: 0.75rem;
  font-size: clamp(1.2rem, calc(1.1rem + 0.5vw), 1.6rem);
  letter-spacing: -0.01em;
  line-height: 1.25;
}

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

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

.skip-link {
  position: fixed;
  z-index: 100;
  top: 0.5rem;
  left: 0.5rem;
  padding: 0.75rem 1rem;
  transform: translateY(-150%);
  border-radius: 0.35rem;
  background: var(--ink);
  color: var(--white);
}

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

.visually-hidden {
  position: absolute !important;
  width: 1px !important;
  height: 1px !important;
  padding: 0 !important;
  margin: -1px !important;
  overflow: hidden !important;
  clip: rect(0, 0, 0, 0) !important;
  white-space: nowrap !important;
  border: 0 !important;
}

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

section[id],
article[id],
h2[id] {
  scroll-margin-top: 7rem;
}

.site-header {
  position: sticky;
  z-index: 30;
  top: 0;
  border-bottom: 1px solid var(--line);
  background: rgba(242, 240, 233, 0.93);
  backdrop-filter: blur(18px);
}

.header-inner {
  display: flex;
  min-height: 5.1rem;
  align-items: center;
  justify-content: space-between;
  gap: 2rem;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 0.8rem;
  text-decoration: none;
}

.brand > span:last-child {
  display: grid;
}

.brand strong {
  font-family: var(--font-display);
  font-size: 1.02rem;
  letter-spacing: 0.03em;
  line-height: 1;
  text-transform: uppercase;
}

.brand small {
  color: var(--ink-soft);
  font-size: 0.68rem;
  letter-spacing: 0.11em;
  text-transform: uppercase;
}

.brand-mark {
  position: relative;
  display: grid;
  width: 2.45rem;
  height: 2.45rem;
  place-items: center;
  border: 1px solid var(--ink);
  border-radius: 50%;
}

.brand-mark i {
  position: absolute;
  border: 2px solid var(--heat);
  border-radius: 50%;
}

.brand-mark i:nth-child(1) {
  width: 1.75rem;
  height: 1.75rem;
}

.brand-mark i:nth-child(2) {
  width: 1.05rem;
  height: 1.05rem;
  border-color: var(--ink);
}

.brand-mark i:nth-child(3) {
  width: 0.3rem;
  height: 0.3rem;
  border: 0;
  background: var(--heat);
}

.primary-nav {
  display: flex;
  align-items: center;
  gap: 0.2rem;
}

.primary-nav a {
  position: relative;
  padding: 0.75rem 0.72rem;
  color: var(--ink-soft);
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.035em;
  text-decoration: none;
  text-transform: uppercase;
}

.primary-nav a::after {
  position: absolute;
  right: 0.72rem;
  bottom: 0.5rem;
  left: 0.72rem;
  height: 2px;
  transform: scaleX(0);
  transform-origin: left;
  background: var(--heat);
  content: "";
  transition: transform 180ms ease;
}

.primary-nav a:hover::after,
.primary-nav a[aria-current="page"]::after {
  transform: scaleX(1);
}

.primary-nav a:last-child {
  margin-left: 0.5rem;
  border: 1px solid var(--ink);
  border-radius: 999px;
  color: var(--ink);
}

.primary-nav a:last-child::after {
  display: none;
}

.primary-nav a:last-child:hover {
  background: var(--ink);
  color: var(--white);
}

.nav-toggle {
  display: none;
  width: 2.75rem;
  height: 2.75rem;
  padding: 0.65rem;
  border: 1px solid var(--ink);
  border-radius: 50%;
  background: transparent;
}

.nav-toggle span {
  display: block;
  height: 1px;
  margin: 0.28rem 0;
  background: var(--ink);
}

.breadcrumb {
  padding-top: 1.25rem;
}

.breadcrumb ol {
  display: flex;
  flex-wrap: wrap;
  gap: 0.45rem;
  padding: 0;
  margin: 0;
  color: var(--ink-soft);
  font-size: 0.75rem;
  list-style: none;
}

.breadcrumb li:not(:last-child)::after {
  margin-left: 0.45rem;
  color: var(--heat-deep);
  content: "/";
}

.breadcrumb a {
  text-underline-offset: 0.2rem;
}

.hero {
  display: grid;
  min-height: calc(100svh - 5.1rem);
  align-items: center;
  grid-template-columns: minmax(0, 1.1fr) minmax(22rem, 0.9fr);
  gap: clamp(3rem, 7vw, 7rem);
  padding-block: clamp(4rem, 7vw, 7rem);
}

.eyebrow,
.section-index {
  margin-bottom: 1.25rem;
  color: var(--heat-deep);
  font-size: 0.72rem;
  font-weight: 800;
  letter-spacing: 0.16em;
  text-transform: uppercase;
}

.section-index {
  color: var(--ink-soft);
}

.hero-lede,
.page-hero > p:last-child {
  max-width: 44rem;
  margin-bottom: 2rem;
  color: var(--ink-soft);
  font-size: clamp(1.15rem, 1.7vw, 1.42rem);
  line-height: 1.55;
}

.button-row {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.8rem;
  margin-block: 2rem;
}

.button {
  display: inline-flex;
  min-height: 3.25rem;
  align-items: center;
  justify-content: center;
  padding: 0.8rem 1.35rem;
  border: 1px solid var(--ink);
  border-radius: 999px;
  font-size: 0.78rem;
  font-weight: 800;
  letter-spacing: 0.06em;
  text-decoration: none;
  text-transform: uppercase;
  transition: transform 180ms ease, background 180ms ease, color 180ms ease;
}

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

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

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

.button-secondary {
  background: transparent;
}

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


.hero-equipment {
  position: relative;
  overflow: hidden;
  min-width: 0;
  margin: 0;
  border-radius: var(--radius-small);
  background: var(--ink);
  box-shadow: 0 1.8rem 4rem rgb(20 39 43 / 14%);
}
.hero-equipment img {
  display: block;
  width: 100%;
  height: clamp(26rem, 42vw, 40rem);
  object-fit: cover;
}
.hero-equipment figcaption {
  position: absolute;
  inset: auto 0 0;
  display: grid;
  gap: 0.2rem;
  padding: 2.2rem 1.5rem 1.4rem;
  background: linear-gradient(transparent, rgb(10 27 31 / 84%));
  color: white;
  font-size: 0.78rem;
}
.hero-equipment figcaption strong { font-size: 1rem; }

.equipment-home-showcase__image {
  overflow: hidden;
  margin: 0;
  border: 1px solid var(--line);
  border-radius: var(--radius-small);
  background: var(--white);
}
.equipment-home-showcase__image img { display: block; width: 100%; height: auto; }
.equipment-home-showcase__image figcaption { padding: 0.85rem 1.1rem; color: var(--ink-soft); font-size: 0.75rem; }
.equipment-home-showcase__facts {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 1rem;
  align-items: start;
  padding-block: 1.5rem 0;
}
.equipment-home-showcase__facts div { display: grid; gap: 0.3rem; padding: 1.2rem; border: 1px solid var(--line); border-radius: var(--radius-small); }
.equipment-home-showcase__facts span { color: var(--heat-deep); font-size: 0.68rem; font-weight: 800; letter-spacing: 0.1em; text-transform: uppercase; }
.equipment-home-showcase__facts strong { font-family: var(--font-display); font-size: clamp(1.3rem, 2vw, 1.8rem); }
.equipment-home-showcase__facts small { color: var(--ink-soft); line-height: 1.5; }
.equipment-home-showcase__facts > .text-link { grid-column: 1 / -1; justify-self: start; }

.hero-checks {
  display: flex;
  flex-wrap: wrap;
  gap: 0.7rem 1.3rem;
  padding: 0;
  margin: 2rem 0 0;
  color: var(--ink-soft);
  font-size: 0.82rem;
  list-style: none;
}

.hero-checks li::before {
  display: inline-block;
  width: 0.48rem;
  height: 0.48rem;
  margin-right: 0.55rem;
  border-radius: 50%;
  background: var(--heat);
  content: "";
}

.process-window {
  position: relative;
  min-height: 34rem;
  overflow: hidden;
  padding: 1.5rem;
  border-radius: calc(var(--radius) * 1.35);
  background: var(--ink);
  box-shadow: var(--shadow);
  color: var(--white);
}

.process-window::before {
  position: absolute;
  width: 25rem;
  height: 25rem;
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: 50%;
  content: "";
  inset: 6rem auto auto -11rem;
}

.window-label {
  position: relative;
  z-index: 2;
  display: grid;
  padding-bottom: 1rem;
  border-bottom: 1px solid var(--line-light);
}

.window-label span {
  color: var(--cool);
  font-size: 0.68rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
}

.window-label strong {
  font-family: var(--font-display);
  font-size: 1.35rem;
}

.concentric-assembly {
  position: relative;
  display: grid;
  min-height: 23rem;
  place-items: center;
}

.tube {
  display: grid;
  border-radius: 50%;
  place-items: center;
}

.tube-outer {
  width: min(18rem, 75vw);
  height: min(18rem, 75vw);
  border: 1rem solid #365057;
  background: repeating-conic-gradient(from 0deg, #30484e 0 7deg, #3c5a61 7deg 14deg);
  box-shadow: 0 0 0 1px var(--cool), inset 0 0 50px rgba(0, 0, 0, 0.35);
}

.tube-product {
  width: 11rem;
  height: 11rem;
  border: 1rem solid var(--heat-pale);
  background: radial-gradient(circle at 35% 28%, #ee8b5d, var(--heat) 45%, var(--heat-deep));
  box-shadow: 0 0 0 1px #ffc6ac, 0 0 45px rgba(217, 93, 50, 0.35);
}

.tube-core {
  width: 4.5rem;
  height: 4.5rem;
  border: 0.7rem solid #6e9598;
  background: var(--ink);
  box-shadow: 0 0 0 1px #b5d2d2;
}

.flow-tag {
  position: absolute;
  z-index: 2;
  padding: 0.35rem 0.6rem;
  border: 1px solid var(--line-light);
  border-radius: 999px;
  background: rgba(20, 39, 43, 0.78);
  font-size: 0.64rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.flow-tag-hot {
  top: 3rem;
  right: 0;
}

.flow-tag-product {
  bottom: 2.5rem;
  left: 0;
  border-color: rgba(243, 212, 198, 0.45);
  color: var(--heat-pale);
}

.signal-row {
  position: relative;
  z-index: 2;
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  border-top: 1px solid var(--line-light);
}

.signal-row span {
  display: grid;
  padding: 1rem 0.35rem 0;
  color: #d8e3e3;
  font-size: 0.68rem;
}

.signal-row b {
  color: var(--heat-pale);
  font-size: 0.6rem;
}

.micro-note {
  margin-top: 1rem;
  color: var(--ink-soft);
  font-size: 0.75rem;
}

.process-window .micro-note {
  color: #9fb2b5;
}

.decision-strip {
  border-block: 1px solid var(--line);
  background: rgba(255, 254, 250, 0.52);
}

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

.decision-grid > div {
  display: grid;
  gap: 0.3rem;
  padding: 1.5rem;
  border-left: 1px solid var(--line);
}

.decision-grid > div:last-child {
  border-right: 1px solid var(--line);
}

.decision-grid span {
  color: var(--heat-deep);
  font-size: 0.65rem;
  font-weight: 800;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.decision-grid strong {
  font-family: var(--font-display);
  font-size: 1.1rem;
}

.technical-figure {
  overflow: hidden;
  margin-block: clamp(3rem, 7vw, 6rem) 0;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--white);
  box-shadow: var(--shadow);
}

.technical-figure img {
  width: 100%;
  height: auto;
  object-fit: cover;
}

.technical-figure__viewport {
  overflow: hidden;
  background: var(--white);
}

.technical-figure__viewport:focus-visible {
  outline: 3px solid var(--heat);
  outline-offset: -3px;
}

.page-visual {
  margin-block: clamp(2.5rem, 5vw, 4.5rem) 0;
}

.technical-figure figcaption {
  padding: 1rem 1.25rem;
  border-top: 1px solid var(--line);
  color: var(--ink-soft);
  font-size: 0.78rem;
}

.technical-figure figcaption strong {
  color: var(--ink);
}

.equipment-detail-gallery {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: clamp(1rem, 2.5vw, 2rem);
  margin-block: clamp(2rem, 4vw, 4rem);
}

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

.equipment-detail-gallery__wide {
  grid-column: 1 / -1;
}

.equipment-detail-gallery img {
  display: block;
  width: 100%;
  height: auto;
}

.equipment-detail-gallery figcaption {
  display: grid;
  gap: 0.35rem;
  padding: 1.1rem 1.25rem 1.35rem;
  color: var(--ink-soft);
  font-size: 0.82rem;
}

.equipment-detail-gallery figcaption strong {
  color: var(--ink);
  font-family: var(--font-display);
  font-size: 1rem;
}

.section {
  padding-block: clamp(5rem, 10vw, 9rem);
}

.section-tight {
  padding-top: 0;
}

.split-intro,
.two-column,
.evidence-banner,
.control-layout,
.sample-panel {
  display: grid;
  grid-template-columns: minmax(0, 0.85fr) minmax(0, 1.15fr);
  gap: clamp(3rem, 8vw, 8rem);
}

.split-intro h2,
.two-column h2,
.evidence-banner h2,
.control-layout h2,
.sample-panel h2 {
  max-width: 12ch;
}

.measure-copy {
  max-width: 43rem;
  color: var(--ink-soft);
  font-size: 1.08rem;
}

.measure-copy-wide {
  max-width: 54rem;
}

.signal-cards {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1rem;
}

.signal-card {
  display: flex;
  min-height: 24rem;
  flex-direction: column;
  align-items: flex-start;
  padding: 2rem;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: rgba(255, 254, 250, 0.76);
}

.signal-card-warm {
  border-color: transparent;
  background: var(--heat-pale);
}

.signal-card-warm .text-link {
  color: #8b3019;
}

.signal-card-warm :focus-visible,
.application-card-warm :focus-visible,
.section-warm :focus-visible {
  outline-color: var(--heat-deep);
}

.signal-card-dark {
  border-color: var(--ink);
  background: var(--ink);
  color: var(--white);
}

.signal-card h3 {
  max-width: 12ch;
  margin-top: auto;
  font-size: 2.15rem;
}

.signal-card p {
  color: var(--ink-soft);
}

.signal-card-dark p {
  color: #c9d6d7;
}

.card-number,
.fit-icon,
.app-code,
.clean-code {
  display: inline-grid;
  min-width: 2.5rem;
  height: 2.5rem;
  place-items: center;
  border: 1px solid currentColor;
  border-radius: 50%;
  color: var(--heat-deep);
  font-family: var(--font-display);
  font-weight: 700;
}

.signal-card-dark .card-number {
  color: var(--heat-pale);
}

.text-link {
  position: relative;
  display: inline-block;
  margin-top: auto;
  padding-bottom: 0.25rem;
  border-bottom: 1px solid currentColor;
  color: var(--heat-deep);
  font-size: 0.78rem;
  font-weight: 800;
  letter-spacing: 0.04em;
  text-decoration: none;
  text-transform: uppercase;
}

.text-link::after {
  margin-left: 0.45rem;
  content: "↗";
}

.text-link-light,
.signal-card-dark .text-link {
  color: var(--heat-pale);
}

.process-section,
.section-ink {
  background: var(--ink);
  color: var(--white);
}

.section-heading {
  max-width: 50rem;
  margin: 0 auto clamp(3rem, 7vw, 6rem);
  text-align: center;
}

.section-heading-left {
  margin-inline: 0;
  text-align: left;
}

.section-heading p:last-child {
  color: #bdcbcc;
}

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

.process-rail {
  padding: 0;
  margin: 0 0 3rem;
  border-top: 1px solid var(--line-light);
  list-style: none;
}

.process-rail li {
  display: grid;
  align-items: start;
  padding: 1.5rem 0;
  border-bottom: 1px solid var(--line-light);
  grid-template-columns: 5rem 1fr 1fr;
}

.process-rail li > span {
  color: var(--heat-pale);
  font-family: var(--font-display);
}

.process-rail li > div {
  display: contents;
}

.process-rail strong {
  font-family: var(--font-display);
  font-size: 1.65rem;
}

.process-rail p {
  max-width: 34rem;
  margin: 0;
  color: #bdcbcc;
}

.process-rail-light {
  border-top-color: var(--line);
}

.process-rail-light li {
  border-bottom-color: var(--line);
}

.process-rail-light li > span {
  color: var(--heat-deep);
}

.process-rail-light p {
  color: var(--ink-soft);
}

.fit-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1px;
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--line);
}

.fit-grid article {
  min-height: 14rem;
  padding: 1.75rem;
  background: var(--paper);
}

.fit-icon {
  width: auto;
  padding-inline: 0.6rem;
  margin-bottom: 2.5rem;
  border-radius: 999px;
  color: var(--heat-deep);
}

.fit-grid p {
  color: var(--ink-soft);
}

.evidence-banner {
  align-items: center;
  padding-inline: clamp(1.5rem, 4vw, 4rem);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--white);
}

.final-cta {
  display: grid;
  justify-items: center;
  max-width: 64rem;
  text-align: center;
}

.final-cta h2 {
  max-width: 15ch;
}

.final-cta > p:not(.eyebrow) {
  max-width: 42rem;
  color: var(--ink-soft);
}

.related-guides {
  padding-top: 0;
}

.related-guides .section-heading {
  margin-bottom: 2rem;
}

.related-grid {
  display: grid;
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--line);
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1px;
}

.related-grid article {
  min-width: 0;
  padding: 1.75rem;
  background: var(--white);
}

.related-grid .eyebrow {
  margin-bottom: 0.75rem;
}

.related-grid h3 {
  font-size: clamp(1.5rem, 2.6vw, 2.1rem);
}

.related-grid h3 a {
  text-decoration-thickness: 1px;
  text-underline-offset: 0.18em;
}

.related-grid p:last-child {
  color: var(--ink-soft);
}

.site-footer {
  padding-top: 5rem;
  background: #0d1b1e;
  color: var(--white);
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr;
  gap: 4rem;
  padding-bottom: 4rem;
}

.brand-footer .brand-mark {
  border-color: var(--white);
}

.brand-footer .brand-mark i:nth-child(2) {
  border-color: var(--white);
}

.brand-footer small,
.footer-grid p,
.footer-grid a,
.footer-base {
  color: #a9babc;
}

.footer-grid > div:first-child p {
  max-width: 25rem;
  margin-top: 1.5rem;
}

.footer-grid h2 {
  margin-bottom: 1.25rem;
  font-size: 0.75rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.footer-grid > div:not(:first-child) {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 0.6rem;
}

.footer-grid a:not(.brand) {
  font-size: 0.88rem;
  text-decoration: none;
}

.footer-grid a:hover {
  color: var(--white);
}

.footer-base {
  display: flex;
  justify-content: space-between;
  gap: 2rem;
  padding-block: 1.5rem;
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  font-size: 0.72rem;
}

.page-hero {
  padding-block: clamp(4.5rem, 8vw, 7rem) clamp(3rem, 5vw, 5rem);
  border-bottom: 1px solid var(--line);
}

.page-hero h1 {
  max-width: 18ch;
}

.page-hero > p:last-child {
  max-width: 52rem;
}

.product-hero {
  display: grid;
  align-items: center;
  column-gap: clamp(2rem, 5vw, 5rem);
  grid-template-areas: "eyebrow photo" "title photo" "lede photo" "actions photo";
  grid-template-columns: minmax(0, 0.95fr) minmax(0, 1.05fr);
  grid-template-rows: auto auto auto auto;
  padding-block: clamp(2.5rem, 5vw, 5rem);
}

.product-hero > .eyebrow { grid-area: eyebrow; align-self: end; }
.product-hero > h1 { grid-area: title; }
.product-hero > .product-hero-lede {
  grid-area: lede;
  max-width: 40rem;
  color: var(--ink-soft);
  font-size: clamp(1.02rem, 1.35vw, 1.2rem);
  line-height: 1.55;
}
.product-hero > .button-row { grid-area: actions; margin-block: 1rem 0; align-self: start; }

.product-hero-media {
  grid-area: photo;
  overflow: hidden;
  margin: 0;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--white);
  box-shadow: var(--shadow);
}

.product-hero-media img { display: block; width: 100%; height: auto; }
.product-hero-media figcaption { padding: 0.85rem 1.1rem; color: var(--ink-soft); font-size: 0.76rem; }

.step-stack {
  border-top: 1px solid var(--line);
}

.step-stack article {
  display: grid;
  align-items: start;
  padding: 1.6rem 0;
  border-bottom: 1px solid var(--line);
  grid-template-columns: 5rem 1fr auto;
  gap: 2rem;
}

.step-stack article > span,
.interface-grid article > span,
.validation-principles article > span {
  color: var(--heat-deep);
  font-family: var(--font-display);
  font-weight: 700;
}

.step-stack h3 {
  margin-bottom: 0.4rem;
}

.step-stack p {
  max-width: 48rem;
  margin: 0;
  color: var(--ink-soft);
}

.step-stack b {
  padding: 0.35rem 0.65rem;
  border: 1px solid var(--line);
  border-radius: 999px;
  color: var(--ink-soft);
  font-size: 0.62rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

.compact-steps {
  padding: 0;
  list-style: none;
}

.compact-steps li {
  display: grid;
  align-items: start;
  padding: 1.6rem 0;
  border-bottom: 1px solid var(--line);
  grid-template-columns: 5rem 1fr auto;
  gap: 2rem;
}

.compact-steps li > span {
  color: var(--heat-deep);
  font-family: var(--font-display);
  font-weight: 700;
}

.compact-steps h3 {
  margin-bottom: 0.4rem;
}

.compact-steps p {
  max-width: 48rem;
  margin: 0;
  color: var(--ink-soft);
}

.compact-steps b {
  padding: 0.35rem 0.65rem;
  border: 1px solid var(--line);
  border-radius: 999px;
  color: var(--ink-soft);
  font-size: 0.62rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

.process-section .section-index,
.section-ink .section-index,
.section-ink .eyebrow {
  color: var(--heat-pale);
}

.answer-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1px;
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--line);
}

.answer-grid article {
  min-height: 15rem;
  padding: clamp(1.5rem, 4vw, 2.5rem);
  background: var(--paper);
}

.answer-grid h3 {
  max-width: 18ch;
}

.answer-grid p {
  color: var(--ink-soft);
}

.section-ink p {
  color: #bdcbcc;
}

.anatomy-card {
  display: grid;
  min-height: 30rem;
  place-items: center;
  padding: 2rem;
  border: 1px solid var(--line-light);
  border-radius: var(--radius);
}

.anatomy-layer {
  display: grid;
  place-items: center;
  border-radius: 50%;
}

.anatomy-shell {
  width: min(24rem, 70vw);
  height: min(24rem, 70vw);
  border: 2px solid var(--cool);
  background: #29464c;
}

.anatomy-product {
  width: 70%;
  height: 70%;
  border: 2px solid var(--heat-pale);
  background: var(--heat);
}

.anatomy-core {
  width: 44%;
  height: 44%;
  border: 2px solid #c3dddd;
  background: var(--ink);
}

.anatomy-layer span {
  position: absolute;
  padding: 0.2rem 0.5rem;
  border-radius: 999px;
  background: rgba(13, 27, 30, 0.76);
  font-size: 0.65rem;
  letter-spacing: 0.07em;
  text-transform: uppercase;
}

.anatomy-card > p {
  align-self: end;
  font-size: 0.72rem;
}

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

.compare-grid > article {
  padding: clamp(2rem, 5vw, 4rem);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: rgba(255, 254, 250, 0.66);
}

.compare-grid h2 {
  max-width: 10ch;
}

.check-list {
  padding: 0;
  margin: 1.5rem 0 0;
  list-style: none;
}

.check-list li {
  position: relative;
  padding: 0.75rem 0 0.75rem 1.5rem;
  border-bottom: 1px solid var(--line);
}

.check-list li::before {
  position: absolute;
  top: 1.18rem;
  left: 0;
  width: 0.5rem;
  height: 0.5rem;
  border: 1px solid var(--heat);
  border-radius: 50%;
  content: "";
}

.caution-panel {
  display: grid;
  align-items: center;
  padding-inline: clamp(2rem, 5vw, 4rem);
  border: 1px solid var(--heat);
  border-radius: var(--radius);
  grid-template-columns: auto 1fr auto;
  gap: 2rem;
}

.caution-mark {
  display: grid;
  width: 4.5rem;
  height: 4.5rem;
  place-items: center;
  border-radius: 50%;
  background: var(--heat);
  color: var(--white);
  font-family: var(--font-display);
  font-size: 2rem;
}

.caution-panel h2 {
  max-width: 17ch;
  font-size: clamp(2rem, 4vw, 3.4rem);
}

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

.application-card {
  min-height: 27rem;
  padding: clamp(2rem, 5vw, 3.5rem);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--white);
}

.application-card-warm {
  border-color: transparent;
  background: var(--heat-pale);
}

.application-card-dark {
  border-color: var(--ink);
  background: var(--ink);
  color: var(--white);
}

.application-card-outline {
  background: transparent;
}

.application-card h2 {
  max-width: 12ch;
  margin-top: 4rem;
  font-size: clamp(2rem, 4vw, 3.3rem);
}

.application-card > p {
  max-width: 33rem;
  color: var(--ink-soft);
}

.application-card-dark > p,
.application-card-dark dd {
  color: #c1cfd0;
}

.application-card dl {
  margin: 2rem 0 0;
}

.application-card > .text-link {
  display: inline-flex;
  margin-top: 1.25rem;
}

.application-card dl div {
  display: grid;
  padding: 0.8rem 0;
  border-top: 1px solid var(--line);
  grid-template-columns: 6rem 1fr;
  gap: 1rem;
}

.application-card-dark dl div {
  border-color: var(--line-light);
}

.application-card dt {
  color: var(--heat-deep);
  font-size: 0.68rem;
  font-weight: 800;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.application-card-dark dt,
.application-card-dark .app-code {
  color: var(--heat-pale);
}

.application-card dd {
  margin: 0;
  color: var(--ink-soft);
  font-size: 0.88rem;
}

.application-card.application-card-dark dd {
  color: #c1cfd0;
}

.particle-map {
  display: grid;
  align-items: center;
  grid-template-columns: repeat(3, 10rem) 1fr;
  gap: 1.25rem;
}

.particle-shape {
  display: grid;
  width: 9rem;
  height: 9rem;
  place-items: center;
  border: 1px solid var(--heat-pale);
  background: rgba(217, 93, 50, 0.13);
  color: var(--heat-pale);
}

.particle-round {
  border-radius: 50%;
}

.particle-long {
  height: 3.5rem;
  border-radius: 999px;
}

.particle-cube {
  transform: rotate(10deg);
  border-radius: 1.2rem;
}

.particle-cube span {
  transform: rotate(-10deg);
}

.particle-shape span {
  font-size: 0.7rem;
  font-weight: 800;
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

.particle-copy {
  padding-left: 2rem;
  border-left: 1px solid var(--line-light);
}

.particle-copy strong {
  display: block;
  margin-bottom: 0.5rem;
  font-family: var(--font-display);
  font-size: 1.6rem;
}

.table-wrap {
  overflow-x: auto;
  border: 1px solid var(--line);
  border-radius: var(--radius-small);
  background: var(--white);
}

.table-wrap:focus-visible {
  outline: 3px solid var(--heat-deep);
  outline-offset: 3px;
}

table {
  width: 100%;
  min-width: 54rem;
  border-collapse: collapse;
  font-size: 0.9rem;
}

caption {
  padding: 1rem 1.25rem;
  border-bottom: 1px solid var(--line);
  color: var(--ink-soft);
  font-size: 0.78rem;
  font-weight: 700;
  text-align: left;
}

th,
td {
  padding: 1rem 1.25rem;
  border-bottom: 1px solid var(--line);
  text-align: left;
  vertical-align: top;
}

th {
  background: var(--ink);
  color: var(--white);
  font-size: 0.68rem;
  letter-spacing: 0.09em;
  text-transform: uppercase;
}

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

.input-sections {
  display: grid;
  gap: 0;
}

.input-sections article {
  display: grid;
  padding: 3rem 0;
  border-top: 1px solid var(--line);
  grid-template-columns: 8rem 1fr;
}

.input-sections article:last-child {
  border-bottom: 1px solid var(--line);
}

.input-number {
  color: var(--heat-deep);
  font-family: var(--font-display);
  font-size: 2rem;
}

.input-sections article > div:last-child {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(16rem, 0.8fr);
  gap: 1rem 4rem;
}

.input-sections article .eyebrow {
  grid-column: 1 / -1;
  margin-bottom: 0;
}

.input-sections h2 {
  max-width: 14ch;
  font-size: clamp(2rem, 4vw, 3.2rem);
}

.input-sections article > div > p:not(.eyebrow) {
  max-width: 42rem;
  color: var(--ink-soft);
}

.tag-list {
  display: flex;
  flex-wrap: wrap;
  align-self: start;
  gap: 0.5rem;
  padding: 0;
  margin: 0;
  grid-column: 1 / -1;
  list-style: none;
}

.tag-list li {
  padding: 0.4rem 0.7rem;
  border: 1px solid var(--line);
  border-radius: 999px;
  color: var(--ink-soft);
  font-size: 0.72rem;
}

.section-warm {
  background: var(--heat-pale);
}

.price-layout {
  display: grid;
  grid-template-columns: 0.8fr 1.2fr;
  gap: 6rem;
}

.price-layout h2 {
  max-width: 12ch;
}

.price-stack {
  border-top: 1px solid rgba(170, 63, 32, 0.28);
}

.price-stack > div {
  display: grid;
  padding: 1.25rem 0;
  border-bottom: 1px solid rgba(170, 63, 32, 0.28);
  grid-template-columns: 4rem 1fr;
}

.price-stack span {
  color: var(--heat-deep);
  font-family: var(--font-display);
}

.price-stack p {
  margin: 0;
}

.sample-panel {
  align-items: start;
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}

.sample-panel .check-list {
  margin-top: 0;
}

.boundary-flow {
  display: grid;
  align-items: center;
  grid-template-columns: repeat(4, 1fr);
  gap: 2.25rem;
  padding: 0;
  margin: 0;
  list-style: none;
}

.boundary-flow > li {
  position: relative;
  display: grid;
  min-height: 8rem;
  align-content: center;
  padding: 1.25rem;
  border: 1px solid var(--line);
  border-radius: var(--radius-small);
  background: var(--white);
}

.boundary-flow > li:not(:last-child)::after {
  position: absolute;
  top: 50%;
  right: -1.7rem;
  transform: translateY(-50%);
  color: var(--heat);
  content: "→";
  font-size: 1.5rem;
}

.boundary-flow span {
  color: var(--heat-deep);
  font-size: 0.62rem;
  font-weight: 800;
  letter-spacing: 0.11em;
  text-transform: uppercase;
}

.boundary-flow strong {
  font-family: var(--font-display);
  font-size: 1.2rem;
}

.clean-card {
  min-height: 33rem;
}

.clean-card-dark {
  border-color: var(--ink) !important;
  background: var(--ink) !important;
  color: var(--white);
}

.clean-card-dark p,
.clean-card-dark .check-list li {
  color: #bdcbcc;
  border-color: var(--line-light);
}

.clean-code {
  width: auto;
  padding-inline: 0.75rem;
  margin-bottom: 4rem;
  border-radius: 999px;
}

.clean-card-dark .clean-code,
.clean-card-dark .eyebrow {
  color: var(--heat-pale);
}

.interface-grid,
.validation-principles,
.evidence-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1px;
  overflow: hidden;
  border: 1px solid var(--line-light);
  border-radius: var(--radius);
  background: var(--line-light);
}

.interface-grid article {
  min-height: 13rem;
  padding: 1.5rem;
  background: var(--ink);
}

.interface-grid article > span {
  color: var(--heat-pale);
}

.interface-grid p {
  font-size: 0.88rem;
}

.control-layout > div:last-child {
  border-top: 1px solid var(--line);
}

details {
  border-bottom: 1px solid var(--line);
}

summary {
  position: relative;
  padding: 1.35rem 3rem 1.35rem 0;
  font-family: var(--font-display);
  font-size: 1.35rem;
  list-style: none;
}

summary::-webkit-details-marker {
  display: none;
}

summary::after {
  position: absolute;
  top: 1.2rem;
  right: 0;
  color: var(--heat-deep);
  content: "+";
  font-size: 1.6rem;
}

details[open] summary::after {
  content: "−";
}

details p {
  max-width: 43rem;
  padding-bottom: 1.5rem;
  color: var(--ink-soft);
}

.validation-principles {
  grid-template-columns: repeat(4, 1fr);
  border-color: var(--line);
  background: var(--line);
}

.validation-principles article,
.evidence-grid article {
  min-height: 17rem;
  padding: 1.75rem;
  background: var(--paper);
}

.validation-principles h2 {
  margin-top: 4rem;
  font-size: 2rem;
}

.validation-principles p,
.evidence-grid p {
  color: var(--ink-soft);
}

.evidence-grid {
  grid-template-columns: repeat(3, 1fr);
  border-color: var(--line);
  background: var(--line);
}

.evidence-grid article {
  min-height: 13rem;
}

.source-library {
  display: grid;
  grid-template-columns: 0.8fr 1.2fr;
  gap: 6rem;
}

.source-library ol {
  padding: 0;
  margin: 0;
  border-top: 1px solid var(--line-light);
  list-style: none;
  counter-reset: sources;
}

.source-library li {
  display: grid;
  padding: 1rem 0;
  border-bottom: 1px solid var(--line-light);
  counter-increment: sources;
  grid-template-columns: 2rem 1fr;
}

.source-library li::before {
  color: var(--heat-pale);
  content: counter(sources, decimal-leading-zero);
  font-family: var(--font-display);
}

.source-library a {
  color: var(--white);
  font-weight: 700;
  text-underline-offset: 0.2rem;
}

.source-library span {
  grid-column: 2;
  color: #9fb2b5;
  font-size: 0.78rem;
}

.source-groups {
  display: grid;
  gap: 2rem;
}

.source-group h3 {
  margin-bottom: 0.75rem;
  color: var(--heat-pale);
  font-size: 1.1rem;
  letter-spacing: 0.02em;
}

.source-group ol {
  counter-reset: sources;
}

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

.rfq-hero {
  display: grid;
  align-items: end;
  grid-template-columns: 1.25fr 0.75fr;
  gap: 5rem;
}

.rfq-expectation {
  padding: 2rem;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--white);
}

.rfq-expectation > span {
  color: var(--heat-deep);
  font-size: 0.68rem;
  font-weight: 800;
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

.rfq-expectation ol {
  padding-left: 1.2rem;
  margin-bottom: 0;
}

.form-layout {
  display: grid;
  align-items: start;
  grid-template-columns: minmax(16rem, 0.65fr) minmax(0, 1.35fr);
  gap: clamp(3rem, 7vw, 7rem);
}

.form-layout > *,
.rfq-form fieldset {
  min-width: 0;
}

.form-aside {
  position: sticky;
  top: 7.5rem;
}

.form-aside h2 {
  max-width: 10ch;
}

.privacy-note {
  padding: 1.25rem;
  margin-top: 2rem;
  border-left: 3px solid var(--heat);
  background: var(--white);
}

.privacy-note strong {
  font-family: var(--font-display);
}

.privacy-note p {
  margin-top: 0.35rem;
  color: var(--ink-soft);
  font-size: 0.8rem;
}

.rfq-form {
  padding: clamp(1.5rem, 5vw, 3.5rem);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--white);
  box-shadow: var(--shadow);
}

.rfq-form fieldset {
  padding: 0 0 2.5rem;
  margin: 0 0 2.5rem;
  border: 0;
  border-bottom: 1px solid var(--line);
}

.rfq-form legend {
  width: 100%;
  padding: 0 0 1.5rem;
  font-family: var(--font-display);
  font-size: 1.6rem;
  font-weight: 700;
}

.rfq-form legend span {
  margin-right: 0.6rem;
  color: var(--heat-deep);
}

.field-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1.15rem;
}

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

.rfq-form label {
  display: grid;
  gap: 0.45rem;
  color: var(--ink-soft);
  font-size: 0.78rem;
  font-weight: 700;
}

.rfq-form label b {
  display: inline;
  color: var(--heat-deep);
}

input,
select,
textarea {
  width: 100%;
  padding: 0.8rem 0.9rem;
  border: 1px solid var(--line);
  border-radius: 0.4rem;
  background: var(--paper);
  font-size: 0.92rem;
  font-weight: 400;
}

textarea {
  min-height: 7rem;
  resize: vertical;
}

input:focus-visible,
select:focus-visible,
textarea:focus-visible {
  border-color: var(--heat);
  outline: 3px solid var(--heat-deep);
  outline-offset: 2px;
}

.consent {
  display: grid !important;
  align-items: start;
  margin-block: 1.25rem;
  grid-template-columns: auto 1fr;
}

.consent input {
  width: 1rem;
  height: 1rem;
  margin-top: 0.2rem;
  accent-color: var(--heat);
}

.honeypot {
  position: absolute;
  left: -10000px;
  width: 1px;
  height: 1px;
  overflow: hidden;
}

.cf-turnstile,
.cf-turnstile iframe {
  max-width: 100%;
}

.form-submit {
  display: flex;
  align-items: center;
  gap: 1.5rem;
}

.form-submit button:disabled {
  cursor: wait;
  opacity: 0.62;
}

.form-status {
  margin: 0;
  color: var(--ink-soft);
  font-size: 0.78rem;
}

.form-status[data-state="success"] {
  color: #286447;
}

.form-status[data-state="error"] {
  color: #a33124;
}

.not-found {
  min-height: 70svh;
}

@media (max-width: 1120px) {
  .page-visual .technical-figure__viewport {
    overflow-x: auto;
    overscroll-behavior-inline: contain;
    scrollbar-color: var(--heat) var(--paper-deep);
  }

  .page-visual img {
    width: max(64rem, 100%);
    max-width: none;
  }
}

@media (max-width: 700px) {
  .equipment-detail-gallery {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 960px) {
  .product-hero {
    grid-template-areas: "eyebrow" "title" "photo" "lede" "actions";
    grid-template-columns: 1fr;
    row-gap: 1.25rem;
    padding-block: 2.5rem;
  }

  .product-hero > .eyebrow,
  .product-hero > h1,
  .product-hero > .product-hero-lede { margin: 0; }
}

@media (max-width: 1080px) {
  .primary-nav a {
    padding-inline: 0.48rem;
    font-size: 0.68rem;
  }

  .hero {
    grid-template-columns: 1fr 0.8fr;
    gap: 3rem;
  }

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

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

  .particle-copy {
    padding: 2rem 0 0;
    border-top: 1px solid var(--line-light);
    border-left: 0;
    grid-column: 1 / -1;
  }
}

@media (max-width: 1020px) {
  :root {
    --shell: min(100% - 2rem, 44rem);
  }

  .nav-toggle {
    display: block;
  }

  .primary-nav {
    position: absolute;
    top: calc(100% + 1px);
    right: 0;
    left: 0;
    display: none;
    max-height: calc(100svh - 5.1rem - 1px);
    overflow-y: auto;
    padding: 1rem;
    border-bottom: 1px solid var(--line);
    background: var(--paper);
    box-shadow: 0 18px 35px rgba(20, 39, 43, 0.12);
  }

  .primary-nav[data-open="true"] {
    display: grid;
  }

  .primary-nav a,
  .primary-nav a:last-child {
    margin: 0;
    padding: 0.85rem;
    border: 0;
    border-bottom: 1px solid var(--line);
    border-radius: 0;
    font-size: 0.78rem;
  }

  .primary-nav a::after {
    display: none;
  }

  .hero,
  .split-intro,
  .two-column,
  .evidence-banner,
  .control-layout,
  .sample-panel,
  .price-layout,
  .source-library,
  .rfq-hero,
  .form-layout {
    grid-template-columns: 1fr;
    gap: 3rem;
  }

  .hero {
    min-height: auto;
  }

  .process-window {
    min-height: 31rem;
  }

  .signal-cards,
  .fit-grid,
  .answer-grid,
  .evidence-grid,
  .related-grid {
    grid-template-columns: repeat(2, 1fr);
  }

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

  .decision-grid > div:nth-child(3) {
    border-top: 1px solid var(--line);
  }

  .process-rail li {
    grid-template-columns: 4rem 1fr;
  }

  .process-rail p {
    padding-top: 0.5rem;
    grid-column: 2;
  }

  .application-grid,
  .compare-grid {
    grid-template-columns: 1fr;
  }

  .input-sections article > div:last-child {
    grid-template-columns: 1fr;
  }

  .boundary-flow {
    grid-template-columns: 1fr;
    gap: 2.5rem;
  }

  .boundary-flow > li:not(:last-child)::after {
    top: auto;
    right: 50%;
    bottom: -2.1rem;
    transform: translateX(50%) rotate(90deg);
  }

  .form-aside {
    position: static;
  }

  .footer-grid {
    grid-template-columns: 1.5fr 1fr;
  }

  .footer-grid > div:first-child {
    grid-column: 1 / -1;
  }
}

@media (max-width: 600px) {
  .header-inner {
    min-height: 4.5rem;
  }

  .brand small {
    display: none;
  }

  .hero {
    display: flex;
    flex-direction: column;
    align-items: stretch;
    gap: 0;
    padding-block: 2.5rem 4rem;
  }

  .hero-copy { display: contents; }
  .hero-copy > .eyebrow { order: 1; }
  .hero-copy > h1 { order: 2; }
  .hero-equipment { order: 3; margin-block: 1.4rem 1.8rem; }
  .hero-equipment img { height: 15rem; }
  .equipment-home-showcase__facts { grid-template-columns: 1fr; }
  .hero-copy > .hero-lede { order: 4; }
  .hero-copy > .button-row { order: 5; }
  .hero-copy > .hero-checks { order: 6; }

  .page-hero {
    padding-block: 4.5rem 3rem;
  }

  .product-hero {
    padding-block: 2.5rem 3rem;
  }

  .section {
    padding-block: 4.5rem;
  }

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

  .hero-checks {
    display: grid;
  }

  .process-window {
    min-height: 27rem;
    padding: 1rem;
  }

  .tube-outer {
    width: 14rem;
    height: 14rem;
  }

  .tube-product {
    width: 8.5rem;
    height: 8.5rem;
  }

  .tube-core {
    width: 3.5rem;
    height: 3.5rem;
  }

  .concentric-assembly {
    min-height: 19rem;
  }

  .decision-grid,
  .signal-cards,
  .fit-grid,
  .answer-grid,
  .evidence-grid,
  .related-grid,
  .interface-grid,
  .validation-principles,
  .field-grid,
  .footer-grid {
    grid-template-columns: 1fr;
  }

  .decision-grid > div,
  .decision-grid > div:last-child {
    border: 0;
    border-bottom: 1px solid var(--line);
  }

  .signal-card,
  .application-card {
    min-height: auto;
  }

  .signal-card h3,
  .application-card h2 {
    margin-top: 3rem;
  }

  .process-rail li {
    grid-template-columns: 3rem 1fr;
  }

  .step-stack article {
    grid-template-columns: 3rem 1fr;
    gap: 1rem;
  }

  .step-stack b,
  .compact-steps b {
    display: none;
  }

  .compact-steps li {
    grid-template-columns: 3rem 1fr;
    gap: 1rem;
  }

  .caution-panel {
    grid-template-columns: 1fr;
  }

  .particle-map {
    grid-template-columns: 1fr;
    justify-items: center;
  }

  .particle-copy {
    grid-column: auto;
  }

  .input-sections article {
    grid-template-columns: 3.5rem 1fr;
  }

  .rfq-form {
    padding: 1.25rem;
  }

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

  .form-submit {
    align-items: stretch;
    flex-direction: column;
  }

  .footer-grid > div:first-child {
    grid-column: auto;
  }

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

@media (max-width: 360px) {
  :root {
    --shell: min(100% - 1rem, 44rem);
  }

  .form-layout {
    width: 100%;
  }

  .rfq-form {
    padding: 0.5rem;
  }

  .cf-turnstile {
    overflow: hidden;
  }

  .cf-turnstile > div {
    transform: scale(0.95);
    transform-origin: left top;
  }
}

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

@media print {
  .site-header,
  .site-footer,
  .button,
  .cf-turnstile,
  .related-guides {
    display: none !important;
  }

  body {
    background: white;
    color: black;
  }

  .section,
  .page-hero {
    padding-block: 1.5rem;
  }
}

.optional-process { margin-block: 1.5rem; border: 1px solid var(--line); border-radius: var(--radius-small); }
.optional-process > summary { cursor: pointer; padding: 1.15rem 1.4rem; font-weight: 800; }
.optional-process > summary:focus-visible { outline: 3px solid var(--heat-deep); outline-offset: 3px; }
.optional-process[open] > summary { border-bottom: 1px solid var(--line); }
.optional-process fieldset { margin-inline: 1rem; }

/* Equipment presentation and progressive navigation. */
:root { --paper: #f6f7f4; --paper-deep: #e8ece7; --white: #fff; --ink: #18342f; --ink-soft: #53675e; --heat: #cd582e; --heat-deep: #a93b16; --line: #dbe2dc; --radius: .6rem; --radius-small: .35rem; --shell: min(1280px, calc(100% - 5rem)); }
body::before { display: none; }
.utility-bar { background: #18342f; color: #d8e5de; font-size: .67rem; letter-spacing: .09em; }
.utility-bar .shell { min-height: 35px; display: flex; justify-content: space-between; align-items: center; gap: 1rem; }
.utility-bar a { text-decoration: none; letter-spacing: .02em; }
.site-header { background: rgba(255,255,255,.97); backdrop-filter: blur(12px); border-bottom: 1px solid var(--line); z-index: 60; }
.header-inner { min-height: 91px; gap: 2rem; }
.brand strong { font-size: 1.23rem; letter-spacing: -.045em; }
.brand small { font-size: .68rem; letter-spacing: .1em; text-transform: uppercase; }
.primary-nav { display: flex; align-items: center; gap: 1.4rem; }
.primary-nav .nav-link, .primary-nav .nav-enquire, .nav-dropdown summary { font-size: .83rem; font-weight: 600; padding: .7rem 0; white-space: nowrap; }
.primary-nav .nav-link::after, .primary-nav .nav-enquire::after, .nav-panel a::after { display: none; }
.primary-nav .nav-link[aria-current] { color: var(--heat-deep); }
.primary-nav .nav-enquire { background: var(--ink); color: white; border: 0; border-radius: .3rem; padding: .78rem 1.15rem; text-decoration: none; }
.primary-nav .nav-enquire:hover { background: var(--heat-deep); }
.nav-dropdown { position: relative; }
.nav-dropdown summary { display: flex; align-items: center; gap: .6rem; list-style: none; cursor: pointer; }
.nav-dropdown summary::-webkit-details-marker, .faq-list summary::-webkit-details-marker { display: none; }
.nav-dropdown[data-active] > summary, .nav-dropdown[open] > summary { color: var(--heat-deep); }
.nav-chevron { width: 6px; height: 6px; border-right: 1.5px solid; border-bottom: 1.5px solid; transform: rotate(45deg); margin-top: -3px; }
.nav-dropdown[open] .nav-chevron { transform: rotate(225deg); margin-top: 3px; }
.nav-panel { position: absolute; top: calc(100% + .5rem); left: -1.5rem; width: 300px; padding: 1.25rem; background: white; border: 1px solid var(--line); border-top: 3px solid var(--heat); border-radius: .25rem; box-shadow: 0 15px 45px #18342f18; max-height: calc(100dvh - 155px); overflow-y: auto; }
.nav-panel p { margin: 0 0 .65rem; padding: .1rem .6rem; font-size: .62rem; letter-spacing: .11em; color: var(--ink-soft); }
.primary-nav .nav-panel a, .primary-nav .nav-panel a:last-child { display: block; padding: .6rem; font-size: .82rem; background: transparent; color: var(--ink); border: 0; border-radius: .15rem; text-decoration: none; white-space: normal; line-height: 1.4; }
.primary-nav .nav-panel a:hover, .primary-nav .nav-panel a[aria-current] { color: var(--heat-deep); background: var(--paper); }
.button { min-height: 49px; padding: .8rem 1.2rem; font-size: .86rem; border-radius: .25rem; box-shadow: none; }
.button-primary { background: var(--heat); color: white; }
.button-primary:hover { background: var(--heat-deep); }
.button-secondary { border-color: #b9c7bc; background: transparent; }
.button-row { gap: .7rem; }
.eyebrow, .section-index { font-size: .69rem; letter-spacing: .12em; font-weight: 600; }
.section { padding-block: 5.5rem; }
.section h2 { font-size: clamp(1.85rem, 2.55vw, 2.8rem); line-height: 1.12; letter-spacing: -.045em; }
.section-heading { margin-bottom: 2.5rem; }
.section-heading p { max-width: 65ch; }
.home-hero { padding-block: 4rem 3.5rem; display: grid; grid-template-columns: .95fr 1.2fr; align-items: center; gap: 3.25rem; }
.home-hero h1 { max-width: 15ch; font-size: clamp(2.6rem, 4.3vw, 4.5rem); letter-spacing: -.055em; line-height: 1.02; margin-bottom: 1.5rem; text-wrap: initial; }
.home-hero h1 span { color: #678373; }
.home-hero .hero-lede { font-size: 1.02rem; line-height: 1.75; max-width: 45ch; }
.status-dot { display: inline-block; height: 6px; width: 6px; background: var(--heat); border-radius: 50%; margin-right: .4rem; vertical-align: middle; }
.hero-small { margin: 1.3rem 0 0; font-size: .74rem; color: var(--ink-soft); }
.home-hero .hero-equipment { margin: 0; background: #e7eae4; border: 0; border-radius: .4rem; box-shadow: none; overflow: hidden; }
.home-hero .hero-equipment img { width: 100%; height: 370px; object-fit: cover; }
.home-hero .hero-equipment figcaption { display: grid; gap: .2rem; padding: 1.1rem 1.35rem; background: white; border: 1px solid var(--line); border-top: 0; color: var(--ink-soft); font-size: .72rem; }
.photo-tag { font-size: .6rem; letter-spacing: .12em; color: var(--heat-deep); }
.home-hero .hero-equipment figcaption strong { font-size: .9rem; color: var(--ink); }
.decision-strip { background: white; border-block: 1px solid var(--line); }
.decision-grid { gap: 0; }
.decision-grid > div { padding: 1.45rem 1.7rem; border-right: 1px solid var(--line); }
.decision-grid > div:first-child { padding-left: 0; }
.decision-grid > div:last-child { border: 0; }
.decision-grid span { font-size: .61rem; letter-spacing: .08em; color: var(--ink-soft); }
.decision-grid strong { font-size: .84rem; margin-top: .3rem; }
.home-heading { display: grid; grid-template-columns: 1fr 1fr; gap: 4.5rem; align-items: end; }
.home-heading > div > p { font-size: .94rem; color: var(--ink-soft); }
.home-heading h2 { margin-bottom: 0; }
.configuration-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1.1rem; }
.configuration-card { display: flex; flex-direction: column; padding: 2rem; background: white; border: 1px solid var(--line); border-radius: .3rem; text-decoration: none; transition: border-color .18s, transform .18s; }
.configuration-card:hover { border-color: var(--heat); transform: translateY(-3px); }
.configuration-card .card-number { font-size: .64rem; letter-spacing: .07em; margin-bottom: 2.7rem; color: var(--heat-deep); }
.configuration-card h3 { font-size: 1.35rem; letter-spacing: -.035em; }
.configuration-card p { color: var(--ink-soft); font-size: .91rem; margin-bottom: 1.5rem; }
.configuration-card .text-link { margin-top: auto; }
.text-link { font-size: .83rem; font-weight: 600; text-underline-offset: 5px; }
.equipment-story { background: #e8ede6; }
.equipment-story-grid { display: grid; grid-template-columns: 1.12fr 1fr; gap: 4rem; align-items: center; }
.equipment-story-grid figure { margin: 0; }
.equipment-story-grid figure img { border-radius: .3rem; width: 100%; aspect-ratio: 4/3; object-fit: cover; }
.equipment-story-grid figcaption { margin-top: .8rem; color: var(--ink-soft); font-size: .7rem; max-width: 62ch; }
.equipment-story-grid > div > p { font-size: .91rem; color: var(--ink-soft); }
.equipment-functions { list-style: none; padding: 0; margin: 1.5rem 0; }
.equipment-functions li { display: flex; gap: 1.2rem; border-top: 1px solid #c7d4c7; padding: .95rem 0; }
.equipment-functions li > span { font-size: .72rem; color: var(--heat-deep); }
.equipment-functions p { color: var(--ink-soft); font-size: .83rem; line-height: 1.6; margin: .2rem 0 0; }
.application-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 1rem; }
.application-grid > a { padding: 1.6rem; background: white; border: 1px solid var(--line); border-radius: .3rem; text-decoration: none; display: flex; flex-direction: column; }
.application-grid > a:hover { border-color: var(--heat); }
.application-symbol { display: block; font-size: 2.8rem; line-height: 1; margin-bottom: 2rem; }
.tomato { color: #a44a35; }.mango { color: #bf851f; }.concentrate { color: #806f92; }.sauce { color: #63816a; }
.application-grid .eyebrow { font-size: .57rem; letter-spacing: .06em; }
.application-grid h3 { font-size: 1.1rem; letter-spacing: -.035em; }
.application-grid p { font-size: .83rem; color: var(--ink-soft); }
.application-grid .text-link { margin-top: auto; font-size: .75rem; }
.process-section { background: #18342f; color: white; }
.process-section .section-index, .process-section .home-heading > div > p { color: #bacfc0; }
.selection-steps article { display: flex; gap: 1.4rem; padding: 1.2rem 0; border-bottom: 1px solid #ffffff26; }
.selection-steps article:first-child { padding-top: 0; }
.selection-steps article > span { font-size: .7rem; color: #f0a07d; }
.selection-steps h3 { font-size: 1.2rem; letter-spacing: -.025em; }
.selection-steps p { font-size: .86rem; color: #bacfc0; line-height: 1.7; }
.text-link-light { color: white; }
.faq-list { max-width: 900px; }
.faq-list details { border-top: 1px solid var(--line); }
.faq-list details:last-child { border-bottom: 1px solid var(--line); }
.faq-list summary { padding: 1.2rem 2.6rem 1.2rem 0; font-size: .96rem; font-weight: 600; cursor: pointer; list-style: none; position: relative; }
.faq-list summary::after { content: '+'; position: absolute; right: .4rem; font-size: 1.3rem; line-height: 1; font-weight: 400; }
.faq-list details[open] summary::after { content: '−'; }
.faq-list details p { color: var(--ink-soft); font-size: .91rem; max-width: 75ch; padding: 0 2rem 1.3rem 0; }
.final-cta { background: #e8ede6; border: 0; border-radius: .4rem; padding: 3.75rem; text-align: left; margin-bottom: 4rem; }
.final-cta h2 { font-size: clamp(2rem, 3.5vw, 3.3rem); }
.final-cta p { max-width: 62ch; }
.final-cta .button-row { justify-content: flex-start; }
.related-guides { padding-top: 1rem; }
.related-grid article { background: white; border: 1px solid var(--line); box-shadow: none; border-radius: .3rem; }
.related-grid h3 { font-size: 1.1rem; }
.related-grid p { font-size: .85rem; }
.site-footer { background: #18342f; color: #d5e2d7; padding-top: 3rem; }
.footer-top { padding-bottom: 3rem; margin-bottom: 3rem; border-bottom: 1px solid #ffffff26; position: relative; }
.footer-top h2 { font-size: 2rem; color: white; letter-spacing: -.04em; }
.footer-top > a { position: absolute; right: 0; bottom: 3rem; }
.footer-grid { padding-block: 0 2.5rem; }
.footer-grid h2 { font-size: .8rem; letter-spacing: .02em; color: white; }
.footer-grid p, .footer-grid a, .footer-base p { font-size: .77rem; }
.mobile-enquiry { display: none; }
.page-hero { padding-block: 3rem; }
.page-hero h1 { font-size: clamp(2.3rem, 3.9vw, 4rem); max-width: 22ch; letter-spacing: -.045em; }
.page-hero > p, .page-hero > div > p { max-width: 73ch; }
.commerce-hero { padding-bottom: 2.5rem; }
.commerce-section-grid { display: grid; grid-template-columns: repeat(3,1fr); gap: 2.4rem; }
.commerce-section-grid article { border-top: 1px solid var(--line); padding-top: 1.5rem; }
.commerce-section-grid .card-number { font-size: .7rem; margin-bottom: 1.5rem; }
.commerce-section-grid h3 { font-size: 1.25rem; letter-spacing: -.03em; }
.commerce-section-grid p { font-size: .92rem; color: var(--ink-soft); }
.inquiry-inputs { display: grid; grid-template-columns: 1.1fr 1fr; gap: 5rem; }
.inquiry-inputs p { color: #bacfc0; font-size: .91rem; }
.inquiry-inputs .check-list { font-size: .96rem; align-self: center; }
.inquiry-inputs .check-list li { padding: .7rem 0 .7rem 1.65rem; border-bottom: 1px solid #ffffff26; }
.page-visual { border-radius: .3rem; box-shadow: none; margin-bottom: 0; }
.page-visual:has(img[src$="photo.webp"]) .technical-figure__viewport { overflow: visible; background: #e7eae4; }
.page-visual:has(img[src$="photo.webp"]) img { width: 100%; min-width: 0; height: 440px; object-fit: contain; }
.product-hero-media { border-radius: .3rem; box-shadow: none; }
.product-hero-media img { max-height: 430px; object-fit: cover; }
.equipment-detail-gallery { grid-template-columns: 1fr 1fr; }
.equipment-detail-gallery__wide { grid-column: auto; }
.equipment-detail-gallery img { aspect-ratio: 4/3; object-fit: cover; }
.rfq-form { box-shadow: none; border: 1px solid var(--line); border-radius: .4rem; }
.form-aside h2 { font-size: 1.8rem; }
.privacy-note { font-size: .75rem; }
@media (max-width: 1100px) {
  :root { --shell: min(1280px, calc(100% - 3rem)); }
  .header-inner { min-height: 78px; }
  .nav-toggle { display: grid; }
  .primary-nav { display: none; position: absolute; inset: 100% 0 auto; background: white; border-bottom: 1px solid var(--line); padding: 1rem 1.5rem; gap: 0; max-height: calc(100dvh - 100px); overflow-y: auto; align-items: stretch; }
  .primary-nav[data-open="true"] { display: flex; flex-direction: column; }
  .primary-nav .nav-link, .nav-dropdown summary { padding: 1rem .3rem; font-size: .95rem; }
  .nav-dropdown { border-top: 1px solid var(--line); }
  .nav-dropdown summary { justify-content: space-between; }
  .nav-panel { position: static; width: 100%; border: 0; border-left: 2px solid var(--heat); box-shadow: none; margin: 0 0 1rem .3rem; padding: .5rem 1rem; max-height: none; }
  .primary-nav .nav-enquire { margin-block: .8rem; text-align: center; }
  .home-hero { gap: 2rem; }
  .home-hero .hero-equipment img { height: 310px; }
  .equipment-story-grid { gap: 2.5rem; }
  .application-grid { grid-template-columns: repeat(2,1fr); }
}
@media (max-width: 760px) {
  :root { --shell: calc(100% - 2.5rem); }
  .utility-bar { display: none; }
  .home-hero { grid-template-columns: 1fr; padding-block: 2.8rem 2rem; gap: 2.5rem; }
  .home-hero h1 { font-size: clamp(2.6rem, 7.7vw, 3.6rem); max-width: 17ch; }
  .home-hero .hero-equipment { order: 0; margin: 0; }
  .home-hero .hero-equipment img { height: auto; aspect-ratio: 1.55; }
  .hero-copy { min-width: 0; }
  .hero-small { font-size: .68rem; }
  .section { padding-block: 3.25rem; }
  .home-heading, .equipment-story-grid, .inquiry-inputs { grid-template-columns: 1fr; gap: 1.5rem; }
  .configuration-grid, .commerce-section-grid { grid-template-columns: 1fr; gap: 1rem; }
  .configuration-card { padding: 1.65rem; }
  .configuration-card .card-number { margin-bottom: 1.5rem; }
  .decision-grid { grid-template-columns: repeat(2,1fr); }
  .decision-grid > div, .decision-grid > div:first-child { padding: 1rem .8rem; }
  .decision-grid > div:nth-child(2) { border-right: 0; }
  .decision-grid > div:nth-child(-n+2) { border-bottom: 1px solid var(--line); }
  .decision-grid strong { font-size: .76rem; }
  .application-grid { gap: .7rem; }
  .application-grid > a { padding: 1.2rem; }
  .application-grid .eyebrow { font-size: .52rem; }
  .application-symbol { margin-bottom: 1.4rem; }
  .equipment-story-grid { gap: 2rem; }
  .home-heading > .selection-steps { margin-top: 1rem; }
  .final-cta { padding: 2rem 1.6rem; margin-bottom: 2.5rem; }
  .final-cta h2 { font-size: 2.2rem; }
  .page-hero { padding-block: 2.2rem; }
  .page-hero h1 { max-width: 20ch; font-size: clamp(2.1rem, 7.4vw, 3rem); }
  .page-visual:has(img[src$="photo.webp"]) img { height: auto; min-width: 0; }
  .equipment-detail-gallery { grid-template-columns: 1fr; }
  .footer-top { margin-bottom: 2rem; padding-bottom: 2rem; }
  .footer-top > a { position: static; }
  .footer-grid { gap: 2rem; }
  .site-footer { padding-bottom: 5.5rem; }
  .mobile-enquiry { display: flex; position: fixed; z-index: 50; bottom: 0; left: 0; right: 0; align-items: center; justify-content: space-between; padding: .9rem 1.4rem calc(.9rem + env(safe-area-inset-bottom)); background: var(--heat); color: white; text-decoration: none; font-size: .9rem; font-weight: 600; box-shadow: 0 -2px 15px #18342f15; }
  body[data-route="/request-process-review/"] .mobile-enquiry { display: none; }
}
@media (max-width: 360px) { .application-grid { grid-template-columns: 1fr; } .home-hero .button-row { flex-direction: column; align-items: stretch; } }
@media (prefers-reduced-motion: reduce) { .configuration-card { transition: none; } .configuration-card:hover { transform: none; } }
@media print { .utility-bar, .mobile-enquiry { display: none; } }
.privacy-note > summary { font-weight: 600; cursor: pointer; padding-block: .4rem; }
.privacy-note[open] > summary { margin-bottom: .9rem; }
.primary-nav a.nav-enquire { color: white; border: 0; border-radius: .3rem; margin-left: 0; }
.nav-dropdown, .nav-dropdown[open] { border-bottom: 0; }
.nav-dropdown summary::after, .nav-dropdown[open] summary::after { display: none; }
.configuration-card .card-number, .commerce-section-grid .card-number { display: block; min-width: 0; height: auto; border: 0; border-radius: 0; text-align: left; }
.home-hero { min-height: 0; }
.home-hero .hero-equipment img { object-position: center 65%; }
.final-cta { max-width: none; justify-items: start; }
.final-cta h2 { max-width: 24ch; }
.application-grid:has(> .application-card) { grid-template-columns: repeat(2, minmax(0, 1fr)); }
.application-grid > a, .commerce-section-grid > article, .home-heading > div { min-width: 0; }
.application-grid > a h3 { overflow-wrap: anywhere; }
.privacy-disclosure > summary { padding: .6rem 1.5rem .6rem 0; font-size: .8rem; }
.privacy-disclosure > summary::after { top: .6rem; font-size: 1rem; }
.privacy-disclosure .privacy-note { margin-block: .6rem 0; }
@media (max-width: 760px) {
  .application-grid:has(> .application-card) { grid-template-columns: minmax(0, 1fr); }
  .application-card { padding: 1.7rem; min-width: 0; }
  .commerce-section-grid > article { padding-bottom: 1rem; }
}
.equipment-story-grid figure img { height: auto; }
@media (max-width: 760px) {
  .home-hero .hero-copy { order: 0; grid-row: auto; }
  .home-hero .hero-equipment { order: 1; grid-row: auto; }
}
@media (max-width: 760px) { .home-hero .hero-copy { display: block; } }
.rfq-input-guide > summary { font-size: .82rem; padding: .7rem 1.5rem .7rem 0; }
.rfq-input-guide > summary::after { top: .7rem; font-size: 1rem; }
body[data-route="/request-process-review/"] .form-layout { padding-top: 1rem; }
.home-hero .hero-equipment figcaption { position: static; inset: auto; }