:root {
  --ink: #11130f;
  --ink-soft: #161914;
  --panel: #1c201a;
  --panel-raised: #23271f;
  --line: #353a30;
  --line-light: #c9c4b6;
  --paper: #e8e3d6;
  --paper-soft: #d4cfc2;
  --muted: #969b90;
  --accent: #db9236;
  --accent-bright: #f1ad52;
  --accent-dark: #6d471e;
  --normal: #96b79b;
  --warning: #e2b655;
  --fault: #dd735f;
  --offline: #9ca1a6;
  --content: min(1200px, calc(100vw - 48px));
  --narrow: 720px;
  --font-sans: Inter, ui-sans-serif, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  --font-mono: "SFMono-Regular", Consolas, "Liberation Mono", monospace;
  --shadow-equipment: 0 32px 70px rgba(0, 0, 0, 0.34), 0 2px 0 rgba(255, 255, 255, 0.03) inset;
}

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

html {
  scroll-behavior: smooth;
  scroll-padding-top: 88px;
}

body {
  margin: 0;
  min-width: 320px;
  background: var(--ink);
  color: var(--paper);
  font-family: var(--font-sans);
  font-size: 16px;
  line-height: 1.65;
  text-rendering: optimizeLegibility;
}

body.nav-open {
  overflow: hidden;
}

a {
  color: inherit;
  text-decoration-thickness: 1px;
  text-underline-offset: 0.22em;
}

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

button {
  font: inherit;
}

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

h1,
h2,
h3,
p,
figure,
blockquote,
dl,
dd {
  margin-top: 0;
}

h1,
h2,
h3 {
  color: #f1ede2;
  font-weight: 650;
  letter-spacing: -0.035em;
  line-height: 1.08;
}

h1 {
  margin-bottom: 28px;
  font-size: clamp(3.1rem, 7vw, 6.65rem);
  max-width: 860px;
}

h2 {
  margin-bottom: 24px;
  font-size: clamp(2.15rem, 4.6vw, 4.3rem);
}

h3 {
  font-size: clamp(1.25rem, 2vw, 1.75rem);
}

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

.skip-link {
  position: fixed;
  z-index: 1000;
  top: 12px;
  left: 12px;
  padding: 10px 14px;
  background: var(--paper);
  color: var(--ink);
  transform: translateY(-180%);
}

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

.eyebrow {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 22px;
  color: var(--accent-bright);
  font-family: var(--font-mono);
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.15em;
  line-height: 1.4;
  text-transform: uppercase;
}

.status-dot {
  display: inline-block;
  width: 8px;
  height: 8px;
  border: 1px solid currentColor;
  border-radius: 50%;
}

.status-dot--heating {
  background: var(--accent);
  color: var(--accent);
  box-shadow: 0 0 0 3px rgba(219, 146, 54, 0.12);
}

.status-dot--offline {
  background: transparent;
  color: var(--offline);
}

.site-header {
  position: sticky;
  z-index: 100;
  top: 0;
  border-bottom: 1px solid rgba(201, 196, 182, 0.14);
  background: rgba(17, 19, 15, 0.94);
  backdrop-filter: blur(12px);
}

.header-inner {
  display: flex;
  width: var(--content);
  min-height: 72px;
  margin: 0 auto;
  align-items: center;
  justify-content: space-between;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  color: #f4f0e5;
  text-decoration: none;
}

.brand-mark {
  display: grid;
  width: 31px;
  height: 31px;
  border: 1px solid #666b5f;
  background: #20241d;
  place-items: center;
  position: relative;
}

.brand-mark::before,
.brand-mark::after {
  position: absolute;
  width: 3px;
  height: 3px;
  border: 1px solid #777d70;
  content: "";
}

.brand-mark::before {
  top: 2px;
  left: 2px;
}

.brand-mark::after {
  right: 2px;
  bottom: 2px;
}

.brand-mark span {
  color: var(--accent-bright);
  font-family: var(--font-mono);
  font-size: 0.62rem;
  font-weight: 800;
  letter-spacing: -0.04em;
}

.brand-name {
  font-size: 1.06rem;
  font-weight: 700;
  letter-spacing: -0.02em;
}

.site-nav {
  display: flex;
  align-items: center;
  gap: 30px;
}

.site-nav a {
  color: var(--muted);
  font-size: 0.84rem;
  font-weight: 600;
  text-decoration: none;
}

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

.site-nav .nav-cta {
  padding: 9px 13px;
  border: 1px solid #5c5140;
  color: var(--accent-bright);
  font-family: var(--font-mono);
  font-size: 0.7rem;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

.site-nav .nav-cta:hover {
  border-color: var(--accent);
  background: rgba(219, 146, 54, 0.08);
  color: #ffd094;
}

.nav-toggle {
  display: none;
  width: 42px;
  height: 42px;
  border: 1px solid var(--line);
  background: transparent;
  color: var(--paper);
}

.nav-toggle-lines,
.nav-toggle-lines::before,
.nav-toggle-lines::after {
  display: block;
  width: 18px;
  height: 1px;
  margin: auto;
  background: currentColor;
  content: "";
  transition: transform 180ms ease, opacity 180ms ease;
}

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

.nav-toggle-lines::after {
  transform: translateY(5px);
}

.nav-toggle[aria-expanded="true"] .nav-toggle-lines {
  background: transparent;
}

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

.nav-toggle[aria-expanded="true"] .nav-toggle-lines::after {
  transform: translateY(-1px) rotate(-45deg);
}

.hero {
  overflow: hidden;
  border-bottom: 1px solid var(--line);
}

.hero-grid {
  display: grid;
  width: var(--content);
  min-height: calc(100svh - 73px);
  margin: 0 auto;
  padding: 88px 0 96px;
  align-items: center;
  grid-template-columns: minmax(0, 1.03fr) minmax(420px, 0.97fr);
  gap: clamp(54px, 8vw, 118px);
}

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

.hero-tagline {
  margin-bottom: 22px;
  color: var(--accent-bright);
  font-size: clamp(1.15rem, 2.2vw, 1.55rem);
  font-weight: 600;
  letter-spacing: -0.02em;
}

.hero-summary {
  max-width: 630px;
  margin-bottom: 34px;
  color: var(--paper-soft);
  font-size: clamp(1rem, 1.5vw, 1.14rem);
  line-height: 1.75;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-bottom: 48px;
}

.button {
  display: inline-flex;
  min-height: 48px;
  padding: 10px 18px;
  align-items: center;
  justify-content: center;
  gap: 12px;
  border: 1px solid transparent;
  font-size: 0.87rem;
  font-weight: 700;
  text-decoration: none;
}

.button--primary {
  background: var(--accent);
  color: #171109;
}

.button--primary:hover {
  background: var(--accent-bright);
}

.button--quiet {
  border-color: var(--line);
  color: var(--paper);
}

.button--quiet:hover {
  border-color: #656b5e;
  background: #181b16;
}

.hero-specs {
  display: grid;
  max-width: 670px;
  margin-bottom: 0;
  border-top: 1px solid var(--line);
  grid-template-columns: repeat(3, 1fr);
}

.hero-specs div {
  padding: 17px 18px 0 0;
  border-right: 1px solid var(--line);
}

.hero-specs div + div {
  padding-left: 18px;
}

.hero-specs div:last-child {
  border-right: 0;
}

.hero-specs dt {
  margin-bottom: 4px;
  color: var(--muted);
  font-family: var(--font-mono);
  font-size: 0.66rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

.hero-specs dd {
  color: var(--paper);
  font-size: 0.84rem;
  font-weight: 650;
}

.unit-concept {
  position: relative;
  margin: 0;
  padding: 12px;
  border: 1px solid #40463a;
  background: #20241d;
  box-shadow: var(--shadow-equipment);
}

.unit-concept::before,
.unit-concept::after {
  position: absolute;
  z-index: -1;
  top: 18px;
  width: 18px;
  height: calc(100% - 36px);
  border: 1px solid #32372e;
  background: #171a15;
  content: "";
}

.unit-concept::before {
  right: 100%;
}

.unit-concept::after {
  left: 100%;
}

.unit-topline {
  display: flex;
  padding: 3px 2px 11px;
  justify-content: space-between;
  color: #8f9589;
  font-family: var(--font-mono);
  font-size: 0.58rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

.unit-face {
  display: grid;
  min-height: 430px;
  padding: clamp(16px, 3vw, 30px);
  border: 1px solid #0c0d0b;
  background: #131511;
  grid-template-columns: 1fr 74px;
  gap: 18px;
}

.unit-display {
  display: flex;
  overflow: hidden;
  border: 1px solid #3b463c;
  background: #0e1410;
  flex-direction: column;
  box-shadow: 0 0 0 3px #090b09, 0 0 28px rgba(126, 172, 119, 0.05) inset;
}

.display-head {
  display: flex;
  padding: 15px 16px 13px;
  border-bottom: 1px solid #29352d;
  align-items: flex-start;
  justify-content: space-between;
}

.display-head div {
  display: flex;
  flex-direction: column;
}

.display-kicker,
.display-time {
  color: #7e9b82;
  font-family: var(--font-mono);
  font-size: 0.52rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

.display-head strong {
  color: #d4e3d2;
  font-family: var(--font-mono);
  font-size: 0.82rem;
  font-weight: 500;
}

.display-time {
  padding: 3px 5px;
  border: 1px solid #334539;
}

.display-channels {
  margin: 0;
  padding: 0 13px;
  list-style: none;
}

.display-channels li {
  display: grid;
  min-height: 54px;
  padding: 9px 3px;
  border-bottom: 1px solid #223027;
  align-items: center;
  grid-template-columns: 48px 1fr 58px 94px;
  gap: 8px;
  font-family: var(--font-mono);
}

.channel-id {
  color: #7d9280;
  font-size: 0.58rem;
}

.display-channels strong {
  color: #e2eddf;
  font-size: 1.02rem;
  font-weight: 500;
}

.display-channels sup {
  color: #91a794;
  font-size: 0.5em;
}

.target {
  color: #77847a;
  font-size: 0.54rem;
}

.state {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 0.54rem;
  white-space: nowrap;
}

.state span {
  display: inline-grid;
  width: 9px;
  height: 9px;
  border: 1px solid currentColor;
  border-radius: 50%;
  place-items: center;
  font-size: 0.45rem;
}

.state--heating {
  color: #e3a451;
}

.state--heating span {
  background: #e3a451;
}

.state--holding {
  color: #91b397;
}

.state--holding span {
  background: #91b397;
}

.state--fault {
  color: #ed806d;
}

.display-footer {
  display: flex;
  margin-top: auto;
  padding: 12px 16px;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  color: #6f8473;
  font-family: var(--font-mono);
  font-size: 0.48rem;
  text-transform: uppercase;
}

.unit-controls {
  display: flex;
  min-width: 0;
  align-items: center;
  flex-direction: column;
}

.control-label {
  margin: 4px 0 14px;
  color: #777d70;
  font-family: var(--font-mono);
  font-size: 0.46rem;
  letter-spacing: 0.06em;
  text-align: center;
}

.encoder {
  display: grid;
  width: 51px;
  height: 51px;
  border: 1px solid #4b5047;
  border-radius: 50%;
  background: #282b25;
  box-shadow: 0 6px 10px #070806, 0 2px 2px rgba(255, 255, 255, 0.06) inset;
  place-items: center;
}

.encoder span {
  width: 1px;
  height: 11px;
  margin-bottom: 25px;
  background: var(--accent);
}

.vent {
  width: 46px;
  height: 55px;
  margin-top: auto;
  background: repeating-linear-gradient(to bottom, transparent 0 5px, #383d34 5px 6px);
}

.vent--b {
  height: 42px;
  margin-top: 8px;
}

.unit-ports {
  display: grid;
  padding: 14px 3px 3px;
  grid-template-columns: repeat(10, 1fr);
  gap: 5px;
}

.unit-ports span {
  display: grid;
  aspect-ratio: 1;
  border: 1px solid #4b5047;
  border-radius: 50%;
  color: #80867a;
  font-family: var(--font-mono);
  font-size: 0.45rem;
  place-items: center;
}

.unit-concept figcaption {
  max-width: 470px;
  margin: 16px 2px 3px;
  color: #8a8f84;
  font-size: 0.69rem;
  line-height: 1.5;
}

.problem-section,
.system-section,
.features-section,
.engineering-section,
.development-section {
  width: var(--content);
  margin: 0 auto;
}

.problem-section {
  padding: 140px 0 130px;
}

.section-heading {
  margin-bottom: 62px;
}

.section-heading--split {
  display: grid;
  grid-template-columns: minmax(0, 1.15fr) minmax(330px, 0.7fr);
  gap: clamp(50px, 10vw, 150px);
  align-items: end;
}

.section-heading--split h2 {
  max-width: 720px;
  margin-bottom: 0;
}

.reading-copy {
  color: var(--paper-soft);
  font-size: 1.02rem;
}

.reading-copy p:last-child,
.section-heading > p:last-child {
  margin-bottom: 0;
}

.control-comparison {
  display: grid;
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  grid-template-columns: 0.92fr 1.08fr;
}

.comparison-panel {
  min-width: 0;
  padding: 42px clamp(22px, 4vw, 54px) 38px;
}

.comparison-panel + .comparison-panel {
  border-left: 1px solid var(--line);
}

.comparison-panel--conventional {
  background: #141612;
}

.comparison-panel--rackstat {
  background: #1a1d18;
}

.comparison-panel > header {
  display: flex;
  margin-bottom: 34px;
  gap: 17px;
}

.panel-index {
  padding-top: 4px;
  color: var(--accent);
  font-family: var(--font-mono);
  font-size: 0.68rem;
}

.comparison-panel h3 {
  margin-bottom: 7px;
}

.comparison-panel header p {
  margin-bottom: 0;
  color: var(--muted);
  font-size: 0.85rem;
}

.rack-diagram {
  min-height: 465px;
  position: relative;
}

.rack-diagram ol {
  margin: 0;
  padding: 0;
  list-style: none;
}

.rack-diagram li {
  display: flex;
  min-height: 40px;
  margin-bottom: 5px;
  padding: 7px 11px;
  border: 1px solid #30352c;
  align-items: center;
  justify-content: space-between;
  color: #9ca197;
  font-family: var(--font-mono);
  font-size: 0.65rem;
}

.rack-diagram li strong {
  color: #e0dcd1;
  font-weight: 500;
}

.rack-diagram--shared {
  display: grid;
  padding-left: 126px;
  align-items: center;
}

.rack-diagram--shared ol {
  position: relative;
  z-index: 2;
}

.rack-diagram--shared li b {
  display: inline-block;
  min-width: 27px;
  color: #8f7657;
  font-weight: 500;
}

.rack-diagram--shared li strong {
  color: #a79b8b;
  font-size: 0.55rem;
  text-transform: uppercase;
}

.thermostat-stack {
  display: flex;
  position: absolute;
  z-index: 3;
  top: 61px;
  bottom: 62px;
  left: 0;
  width: 96px;
  justify-content: space-between;
  flex-direction: column;
}

.thermostat-stack .thermostat-node {
  display: flex;
  width: 96px;
  min-height: 78px;
  padding: 12px 9px;
  border: 1px solid #61574a;
  background: #1b1a16;
  align-items: center;
  justify-content: center;
  flex-direction: column;
  text-align: center;
  box-shadow: 0 7px 16px rgba(0, 0, 0, 0.3);
}

.thermostat-stack .thermostat-node span {
  color: var(--accent);
  font-family: var(--font-mono);
  font-size: 0.62rem;
  font-weight: 700;
}

.thermostat-stack .thermostat-node small {
  color: var(--muted);
  font-family: var(--font-mono);
  font-size: 0.43rem;
  text-transform: uppercase;
}

.thermostat-stack .thermostat-node i {
  width: 6px;
  height: 6px;
  margin-top: 8px;
  border-radius: 50%;
  background: var(--accent);
}

.cable-runs {
  position: absolute;
  z-index: 1;
  top: 0;
  bottom: 0;
  left: 80px;
  width: 68px;
  overflow: hidden;
  opacity: 0.78;
}

.cable-runs i {
  position: absolute;
  width: 78px;
  height: 34px;
  border: 1px solid #6b5336;
  border-right: 0;
  border-radius: 50% 0 0 50%;
  transform-origin: center;
}

.cable-runs i:nth-child(1) { top: 28px; left: 14px; transform: rotate(12deg); }
.cable-runs i:nth-child(2) { top: 66px; left: 2px; transform: rotate(-17deg); }
.cable-runs i:nth-child(3) { top: 103px; left: 19px; transform: rotate(21deg); }
.cable-runs i:nth-child(4) { top: 144px; left: 6px; transform: rotate(-8deg); }
.cable-runs i:nth-child(5) { top: 181px; left: 17px; transform: rotate(15deg); }
.cable-runs i:nth-child(6) { top: 249px; left: 4px; transform: rotate(-14deg); }
.cable-runs i:nth-child(7) { top: 288px; left: 18px; transform: rotate(18deg); }
.cable-runs i:nth-child(8) { top: 326px; left: 1px; transform: rotate(-20deg); }
.cable-runs i:nth-child(9) { top: 365px; left: 16px; transform: rotate(9deg); }
.cable-runs i:nth-child(10) { top: 402px; left: 3px; transform: rotate(-12deg); }

.probe-level {
  border-color: #685a45 !important;
  background: rgba(219, 146, 54, 0.05);
  position: relative;
}

.probe-level em {
  position: absolute;
  top: -1px;
  right: -1px;
  padding: 2px 5px;
  background: var(--accent-dark);
  color: #f6c98d;
  font-size: 0.45rem;
  font-style: normal;
  text-transform: uppercase;
}

.rack-diagram--independent li {
  display: grid;
  grid-template-columns: 1fr 80px 44px;
  gap: 12px;
}

.rack-diagram--independent li b {
  margin-right: 14px;
  color: var(--accent);
  font-weight: 500;
}

.rack-diagram--independent li i {
  color: #9daf9c;
  font-size: 0.55rem;
  font-style: normal;
  text-align: right;
}

.fault-text {
  color: var(--fault) !important;
}

.diagram-note {
  display: flex;
  margin-bottom: 0;
  padding-top: 20px;
  border-top: 1px solid #30352c;
  gap: 10px;
  color: #b8aa94;
  font-size: 0.78rem;
}

.diagram-note span {
  color: var(--warning);
}

.diagram-note--good {
  color: #acb8aa;
}

.diagram-note--good span {
  color: var(--normal);
}

.cable-burden {
  display: grid;
  margin-top: 74px;
  padding: 42px 0;
  border-top: 1px solid #655845;
  border-bottom: 1px solid #655845;
  grid-template-columns: 0.48fr minmax(0, 1.2fr) minmax(270px, 0.65fr);
  gap: clamp(35px, 6vw, 82px);
}

.cable-burden > .eyebrow {
  align-self: start;
  margin-bottom: 0;
}

.cable-burden h3 {
  max-width: 650px;
  margin-bottom: 20px;
  font-size: clamp(1.55rem, 2.7vw, 2.35rem);
}

.cable-burden > div p {
  max-width: 690px;
  color: var(--paper-soft);
  font-size: 0.91rem;
}

.cable-burden > div p:last-child {
  margin-bottom: 0;
}

.cable-burden > div strong {
  color: var(--paper);
}

.cable-burden dl {
  margin: 0;
  border-top: 1px solid var(--line);
}

.cable-burden dl div {
  padding: 13px 0;
  border-bottom: 1px solid var(--line);
}

.cable-burden dt {
  color: var(--accent-bright);
  font-family: var(--font-mono);
  font-size: 0.58rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

.cable-burden dd {
  color: var(--muted);
  font-size: 0.76rem;
}

.seasonal-control {
  display: grid;
  margin-top: 112px;
  padding: clamp(32px, 5vw, 62px);
  border: 1px solid #3d4338;
  background: #171a15;
  grid-template-columns: minmax(0, 0.86fr) minmax(390px, 1.14fr);
  gap: clamp(55px, 9vw, 120px);
  box-shadow: 0 26px 58px rgba(0, 0, 0, 0.2);
}

.seasonal-copy h3 {
  max-width: 580px;
  margin-bottom: 24px;
  font-size: clamp(1.85rem, 3.6vw, 3.2rem);
}

.seasonal-copy > p:not(.eyebrow, .concept-note) {
  max-width: 620px;
  color: var(--paper-soft);
  font-size: 0.92rem;
}

.concept-note {
  margin: 30px 0 0;
  padding-top: 15px;
  border-top: 1px solid var(--line);
  color: var(--muted);
  font-family: var(--font-mono);
  font-size: 0.58rem;
  line-height: 1.6;
  text-transform: uppercase;
}

.seasonal-workflow {
  align-self: center;
  border: 1px solid #3d493f;
  background: #0f130f;
  box-shadow: 0 0 0 3px #0b0d0b;
  font-family: var(--font-mono);
}

.workflow-toolbar,
.workflow-footer {
  display: flex;
  padding: 14px 16px;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
}

.workflow-toolbar {
  border-bottom: 1px solid #2c372f;
  color: #718078;
  font-size: 0.56rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.workflow-toolbar strong {
  color: var(--accent-bright);
  font-size: 0.62rem;
}

.seasonal-workflow ol {
  margin: 0;
  padding: 0 16px;
  list-style: none;
}

.seasonal-workflow li {
  display: grid;
  min-height: 82px;
  padding: 14px 0;
  border-bottom: 1px solid #263029;
  align-items: center;
  grid-template-columns: 34px 1fr auto;
  gap: 13px;
}

.seasonal-workflow li > span {
  color: var(--accent);
  font-size: 0.6rem;
}

.seasonal-workflow li div {
  display: flex;
  flex-direction: column;
}

.seasonal-workflow li strong {
  color: #d9e0d7;
  font-size: 0.75rem;
  font-weight: 500;
}

.seasonal-workflow li small {
  color: #738078;
  font-family: var(--font-sans);
  font-size: 0.66rem;
}

.seasonal-workflow li > b {
  min-width: 51px;
  padding: 4px 6px;
  border: 1px solid #415046;
  color: var(--normal);
  font-size: 0.5rem;
  font-weight: 500;
  text-align: center;
  text-transform: uppercase;
}

.workflow-footer {
  color: #647169;
  font-size: 0.5rem;
  text-transform: uppercase;
}

.mission-section {
  border-top: 1px solid var(--line-light);
  border-bottom: 1px solid var(--line-light);
  background: var(--paper);
  color: #30332d;
}

.mission-grid {
  display: grid;
  width: var(--content);
  margin: 0 auto;
  padding: 132px 0;
  grid-template-columns: minmax(0, 0.95fr) minmax(430px, 0.75fr);
  gap: clamp(70px, 12vw, 180px);
}

.mission-section .eyebrow {
  color: #88561e;
}

.mission-section h2,
.mission-section h3 {
  color: #151713;
}

.mission-copy blockquote {
  margin: 50px 0 38px;
  padding: 0 0 0 22px;
  border-left: 3px solid var(--accent);
}

.mission-copy blockquote p {
  margin-bottom: 0;
  color: #252821;
  font-size: clamp(1.12rem, 2vw, 1.4rem);
  font-weight: 520;
  line-height: 1.55;
}

.mission-copy > p:last-child {
  max-width: 670px;
  margin-bottom: 0;
}

.design-ledger {
  align-self: start;
  border-top: 2px solid #24271f;
}

.ledger-header {
  display: flex;
  padding: 12px 0 23px;
  justify-content: space-between;
  color: #5e6258;
  font-family: var(--font-mono);
  font-size: 0.63rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

.design-ledger dl {
  margin-bottom: 0;
}

.design-ledger dl > div {
  display: grid;
  padding: 19px 0;
  border-top: 1px solid #c7c1b3;
  grid-template-columns: 42px 1fr;
  gap: 12px;
}

.design-ledger dt {
  color: #8a5a26;
  font-family: var(--font-mono);
  font-size: 0.7rem;
}

.design-ledger dd {
  display: flex;
  flex-direction: column;
}

.design-ledger strong {
  color: #1e211b;
  font-size: 0.95rem;
}

.design-ledger span {
  color: #62665c;
  font-size: 0.8rem;
}

.system-section {
  padding: 140px 0 146px;
}

.section-heading--system {
  display: grid;
  grid-template-columns: 1fr minmax(300px, 0.55fr);
  gap: 80px;
  align-items: end;
}

.section-heading--system h2 {
  margin-bottom: 0;
}

.section-heading--system > p {
  color: var(--muted);
}

.channel-console {
  border: 1px solid #3c4237;
  background: #0f120f;
  box-shadow: var(--shadow-equipment);
}

.console-toolbar,
.console-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  font-family: var(--font-mono);
  text-transform: uppercase;
}

.console-toolbar {
  min-height: 70px;
  padding: 14px 22px;
  border-bottom: 1px solid #333a31;
}

.console-toolbar > div:first-child {
  display: flex;
  align-items: baseline;
  gap: 20px;
}

.console-brand {
  color: var(--accent-bright);
  font-size: 0.76rem;
  font-weight: 800;
  letter-spacing: 0.09em;
}

.console-view {
  color: #777f76;
  font-size: 0.55rem;
  letter-spacing: 0.08em;
}

.console-key {
  display: flex;
  gap: 17px;
  color: #889088;
  font-size: 0.54rem;
}

.console-key span {
  display: flex;
  align-items: center;
  gap: 6px;
}

.console-key i {
  width: 7px;
  height: 7px;
  border-radius: 50%;
}

.key-normal { background: var(--normal); }
.key-heating { background: var(--accent); }
.key-fault { background: var(--fault); }

.channel-table {
  font-family: var(--font-mono);
}

.channel-table-head,
.channel-table-row {
  display: grid;
  padding: 0 22px;
  align-items: center;
  grid-template-columns: 1.55fr 1fr 1fr 1.3fr 0.8fr 0.7fr;
  gap: 16px;
}

.channel-table-head {
  min-height: 42px;
  border-bottom: 1px solid #2c322a;
  color: #697069;
  font-size: 0.55rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.channel-table-row {
  min-height: 56px;
  border-bottom: 1px solid #262c25;
  color: #bbc3b9;
  font-size: 0.69rem;
}

.channel-table-row:last-child {
  border-bottom: 0;
}

.channel-table-row:hover {
  background: #151a15;
}

.channel-table-row > span:first-child {
  color: #d7ddd3;
}

.channel-table-row b {
  display: inline-block;
  min-width: 31px;
  color: #7f8a7f;
  font-weight: 500;
}

.channel-table-row > span:nth-child(4) {
  display: grid;
  grid-template-columns: minmax(45px, 100px) 1fr;
  align-items: center;
  gap: 10px;
}

.channel-table-row i {
  display: block;
  width: 100%;
  height: 3px;
  background: #30362f;
  position: relative;
}

.channel-table-row i::after {
  position: absolute;
  width: var(--output);
  height: 100%;
  background: #68756a;
  content: "";
}

.channel-table-row.is-heating i::after {
  background: var(--accent);
}

.channel-table-row.is-fault {
  background: rgba(221, 115, 95, 0.055);
  color: #cfa49c;
}

.channel-table-row.is-fault strong {
  color: var(--fault);
}

.console-footer {
  min-height: 47px;
  padding: 12px 22px;
  border-top: 1px solid #343a31;
  color: #6c746b;
  font-size: 0.5rem;
  letter-spacing: 0.06em;
}

.features-section {
  padding: 30px 0 136px;
}

.section-heading--narrow {
  max-width: 760px;
  margin-bottom: 76px;
}

.section-heading--narrow > p:last-child {
  max-width: 650px;
  color: var(--paper-soft);
  font-size: 1.05rem;
}

.feature-bands {
  border-top: 1px solid var(--line);
}

.feature-band {
  display: grid;
  padding: 54px 0;
  border-bottom: 1px solid var(--line);
  grid-template-columns: minmax(300px, 0.84fr) minmax(0, 1.16fr);
  gap: clamp(60px, 10vw, 150px);
}

.feature-band header > span {
  display: block;
  margin-bottom: 22px;
  color: var(--accent);
  font-family: var(--font-mono);
  font-size: 0.67rem;
  letter-spacing: 0.11em;
  text-transform: uppercase;
}

.feature-band h3 {
  max-width: 420px;
  margin-bottom: 0;
  font-size: clamp(1.55rem, 2.8vw, 2.45rem);
}

.feature-band-body > p {
  max-width: 670px;
  color: var(--paper-soft);
}

.technical-list {
  display: grid;
  margin: 31px 0 0;
  padding: 0;
  border-top: 1px solid var(--line);
  grid-template-columns: 1fr 1fr;
  list-style: none;
}

.technical-list li {
  padding: 12px 10px 12px 0;
  border-bottom: 1px solid var(--line);
  color: #b9beb4;
  font-family: var(--font-mono);
  font-size: 0.66rem;
}

.technical-list li:nth-child(odd) {
  border-right: 1px solid var(--line);
}

.technical-list li:nth-child(even) {
  padding-left: 16px;
}

.monitor-readout {
  display: grid;
  margin-top: 33px;
  border-top: 1px solid #4b4f42;
  border-bottom: 1px solid #4b4f42;
  grid-template-columns: repeat(4, 1fr);
}

.monitor-readout span {
  display: flex;
  padding: 17px 14px;
  border-right: 1px solid #4b4f42;
  flex-direction: column;
}

.monitor-readout span:last-child {
  border-right: 0;
}

.monitor-readout small {
  color: #737b72;
  font-family: var(--font-mono);
  font-size: 0.52rem;
  text-transform: uppercase;
}

.monitor-readout b {
  color: #e4e0d5;
  font-family: var(--font-mono);
  font-size: 0.9rem;
  font-weight: 500;
}

.technical-list--statuses {
  display: block;
}

.technical-list--statuses li {
  display: flex;
  padding-left: 0 !important;
  border-right: 0 !important;
  align-items: center;
  gap: 17px;
}

.status-code {
  display: inline-block;
  min-width: 38px;
  color: var(--fault);
}

.plain-note {
  margin-top: 31px;
  padding: 22px 24px;
  border-left: 3px solid var(--accent);
  background: #191c17;
}

.plain-note strong {
  color: var(--accent-bright);
}

.memory-section {
  display: grid;
  padding: 132px max(24px, calc((100vw - 1200px) / 2));
  border-top: 1px solid #d0cbbc;
  border-bottom: 1px solid #d0cbbc;
  background: #ded9cc;
  color: #33362f;
  grid-template-columns: minmax(0, 0.8fr) minmax(440px, 1.2fr);
  gap: clamp(70px, 12vw, 180px);
  align-items: center;
}

.memory-section .eyebrow {
  color: #82511c;
}

.memory-section h2 {
  color: #151713;
}

.memory-copy > p:not(.eyebrow) {
  max-width: 610px;
}

.accuracy-note {
  margin-top: 31px;
  padding: 17px 20px;
  border: 1px solid #b8b1a2;
  color: #55594f;
  font-size: 0.82rem;
}

.accuracy-note strong {
  color: #302a21;
}

.recovery-sequence {
  display: grid;
  align-items: center;
  grid-template-columns: 1fr 50px 1fr 50px 1fr;
}

.recovery-sequence div {
  display: flex;
  min-height: 170px;
  padding: 20px;
  border: 1px solid #aaa496;
  background: #e8e3d7;
  flex-direction: column;
}

.recovery-sequence div > span {
  margin-bottom: auto;
  color: #8d5a23;
  font-family: var(--font-mono);
  font-size: 0.68rem;
}

.recovery-sequence strong {
  margin-bottom: 4px;
  color: #20231e;
  font-size: 0.84rem;
}

.recovery-sequence small {
  color: #6e7169;
  font-size: 0.68rem;
}

.recovery-sequence > i {
  height: 1px;
  background: #aaa496;
  position: relative;
}

.recovery-sequence > i::after {
  position: absolute;
  top: -3px;
  right: -1px;
  width: 6px;
  height: 6px;
  border-top: 1px solid #777165;
  border-right: 1px solid #777165;
  content: "";
  transform: rotate(45deg);
}

.engineering-section {
  padding: 142px 0;
}

.engineering-grid {
  display: grid;
  grid-template-columns: minmax(390px, 0.9fr) minmax(0, 1.1fr);
  gap: clamp(70px, 10vw, 140px);
}

.airflow-panel {
  margin: 0;
  padding: 25px;
  border: 1px solid var(--line);
  background: #171a15;
}

.airflow-panel figcaption {
  display: flex;
  margin-bottom: 28px;
  flex-direction: column;
}

.airflow-panel figcaption span {
  margin-bottom: 4px;
  color: var(--accent);
  font-family: var(--font-mono);
  font-size: 0.6rem;
  letter-spacing: 0.09em;
  text-transform: uppercase;
}

.airflow-panel figcaption strong {
  font-size: 1.3rem;
}

.enclosure-cutaway {
  display: grid;
  min-height: 460px;
  padding: 25px;
  border: 1px solid #3c4238;
  background: #10120f;
  grid-template-rows: auto 1fr 1.3fr 1fr auto;
  position: relative;
}

.airflow-label {
  display: flex;
  align-items: center;
  justify-content: space-between;
  color: #8e958b;
  font-family: var(--font-mono);
  font-size: 0.57rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

.airflow-label b {
  color: var(--accent);
  font-size: 1.2rem;
}

.component-bank {
  display: flex;
  padding: 21px;
  border: 1px solid #343a31;
  align-items: end;
  gap: 8px;
  position: relative;
}

.component-bank span {
  position: absolute;
  top: 8px;
  left: 10px;
  color: #777e75;
  font-family: var(--font-mono);
  font-size: 0.5rem;
  text-transform: uppercase;
}

.component-bank i {
  flex: 1;
  border: 1px solid #484e43;
  background: #252920;
}

.component-bank--hot i {
  height: 42%;
  border-top-color: #815a31;
}

.component-bank--cool i:first-of-type { height: 58%; }
.component-bank--cool i:last-of-type { height: 38%; }

.air-path {
  display: flex;
  padding: 5px 0;
  align-items: center;
  justify-content: space-around;
}

.air-path i {
  width: 1px;
  height: 70%;
  background: #715332;
  position: relative;
}

.air-path i::before,
.air-path i::after {
  position: absolute;
  top: 0;
  left: -3px;
  width: 6px;
  height: 6px;
  border-top: 1px solid var(--accent);
  border-left: 1px solid var(--accent);
  content: "";
  transform: rotate(45deg);
}

.air-path i::after {
  top: 45%;
}

.airflow-panel > p {
  margin: 23px 0 0;
  color: var(--muted);
  font-size: 0.83rem;
}

.engineering-notes {
  border-top: 1px solid var(--line);
}

.engineering-notes article {
  display: grid;
  padding: 30px 0;
  border-bottom: 1px solid var(--line);
  grid-template-columns: 46px 1fr;
  gap: 15px;
}

.engineering-notes article > span {
  color: var(--accent);
  font-family: var(--font-mono);
  font-size: 0.66rem;
}

.engineering-notes h3 {
  margin-bottom: 11px;
  font-size: 1.35rem;
}

.engineering-notes p {
  max-width: 590px;
  margin-bottom: 0;
  color: var(--muted);
  font-size: 0.9rem;
}

.probe-section {
  display: grid;
  border-top: 1px solid #d0cbbc;
  border-bottom: 1px solid #d0cbbc;
  background: #e6e0d3;
  color: #393c35;
  grid-template-columns: 0.9fr 1.1fr;
}

.probe-visual {
  display: grid;
  min-height: 620px;
  overflow: hidden;
  padding: 70px max(40px, calc((100vw - 1200px) / 2));
  padding-right: 70px;
  border-right: 1px solid #bcb6a8;
  background: #d8d2c5;
  align-content: center;
  justify-items: center;
  position: relative;
}

.socket-bank {
  display: grid;
  width: min(410px, 100%);
  padding: 26px;
  border: 1px solid #7e7b71;
  background: #22251f;
  grid-template-columns: repeat(5, 1fr);
  gap: 25px 18px;
  box-shadow: 0 22px 45px rgba(44, 42, 36, 0.2);
}

.socket-bank span {
  display: grid;
  aspect-ratio: 1;
  border: 2px solid #6e7368;
  border-radius: 50%;
  background: #131512;
  color: #a2a79d;
  font-family: var(--font-mono);
  font-size: 0.6rem;
  place-items: center;
  position: relative;
}

.socket-bank span::before {
  position: absolute;
  top: 18%;
  width: 3px;
  height: 3px;
  border-radius: 50%;
  background: #80877b;
  box-shadow: -6px 10px #80877b, 6px 10px #80877b;
  content: "";
}

.connector {
  display: grid;
  width: 114px;
  height: 114px;
  margin-top: 62px;
  border: 8px solid #65685f;
  border-radius: 50%;
  background: #22251f;
  grid-template-columns: 1fr 1fr;
  place-items: center;
  position: relative;
}

.connector::before {
  position: absolute;
  top: -12px;
  width: 18px;
  height: 14px;
  border: 5px solid #65685f;
  border-bottom: 0;
  content: "";
}

.connector i {
  width: 9px;
  height: 9px;
  border-radius: 50%;
  background: #a99c77;
}

.connector i:nth-child(3) {
  grid-column: 1 / -1;
}

.cable {
  width: 5px;
  height: 100px;
  background: #393b36;
}

.probe-copy {
  max-width: 700px;
  padding: 130px max(40px, calc((100vw - 1200px) / 2)) 130px clamp(60px, 8vw, 120px);
}

.probe-copy .eyebrow {
  color: #84521c;
}

.probe-copy h2 {
  color: #161814;
}

.probe-copy > p:not(.eyebrow) {
  max-width: 620px;
}

.spec-list {
  margin: 42px 0 0;
  border-top: 1px solid #bdb7a9;
}

.spec-list div {
  display: grid;
  padding: 17px 0;
  border-bottom: 1px solid #bdb7a9;
  grid-template-columns: 150px 1fr;
  gap: 22px;
}

.spec-list dt {
  color: #795126;
  font-family: var(--font-mono);
  font-size: 0.66rem;
  text-transform: uppercase;
}

.spec-list dd {
  color: #4e5149;
  font-size: 0.84rem;
}

.development-section {
  padding: 144px 0;
}

.timeline {
  margin: 84px 0 0;
  padding: 0;
  list-style: none;
}

.timeline-item {
  display: grid;
  min-height: 215px;
  grid-template-columns: 90px 1fr;
  position: relative;
}

.timeline-item:not(:last-child)::before {
  position: absolute;
  top: 44px;
  bottom: -1px;
  left: 20px;
  width: 1px;
  background: #3d4338;
  content: "";
}

.timeline-marker span {
  display: grid;
  width: 42px;
  height: 42px;
  border: 1px solid #52584c;
  background: var(--ink);
  color: #747b71;
  font-family: var(--font-mono);
  font-size: 0.65rem;
  place-items: center;
  position: relative;
  z-index: 1;
}

.timeline-item.is-complete .timeline-marker span {
  border-color: #607463;
  color: var(--normal);
}

.timeline-item.is-active .timeline-marker span {
  border-color: var(--accent);
  background: var(--accent);
  color: #171109;
}

.timeline-content {
  display: grid;
  padding: 0 0 53px;
  border-bottom: 1px solid var(--line);
  grid-template-columns: minmax(260px, 0.6fr) minmax(0, 1fr);
  gap: 50px;
}

.timeline-item + .timeline-item .timeline-content {
  padding-top: 44px;
}

.timeline-content header p {
  margin-bottom: 8px;
  color: var(--paper);
  font-size: 1.35rem;
  font-weight: 650;
}

.timeline-content header span {
  color: var(--muted);
  font-family: var(--font-mono);
  font-size: 0.62rem;
  letter-spacing: 0.07em;
  text-transform: uppercase;
}

.timeline-item.is-active header span {
  color: var(--accent-bright);
}

.timeline-item.is-complete header span {
  color: var(--normal);
}

.timeline-content ul {
  display: grid;
  margin: 0;
  padding: 0;
  grid-template-columns: 1fr 1fr;
  gap: 8px 34px;
  list-style: none;
}

.timeline-content li {
  padding-left: 16px;
  color: #a8aea4;
  font-size: 0.82rem;
  position: relative;
}

.timeline-content li::before {
  position: absolute;
  top: 0.72em;
  left: 0;
  width: 5px;
  height: 1px;
  background: #747b70;
  content: "";
}

.testing-note {
  display: grid;
  margin-top: 96px;
  padding: 42px 0;
  border-top: 1px solid #625744;
  border-bottom: 1px solid #625744;
  grid-template-columns: 0.75fr 1.1fr auto;
  gap: 55px;
  align-items: center;
}

.testing-note .eyebrow {
  margin-bottom: 10px;
}

.testing-note h3 {
  margin-bottom: 0;
  font-size: 1.6rem;
}

.testing-note > p {
  margin-bottom: 0;
  color: var(--muted);
  font-size: 0.87rem;
}

.text-link {
  color: var(--accent-bright);
  font-size: 0.82rem;
  font-weight: 700;
  white-space: nowrap;
}

.contact-section {
  display: grid;
  padding: 120px max(24px, calc((100vw - 1200px) / 2));
  border-top: 1px solid #d0cbbc;
  background: var(--paper);
  color: #30332d;
  grid-template-columns: minmax(0, 1.1fr) minmax(380px, 0.65fr);
  gap: clamp(70px, 13vw, 190px);
}

.contact-section .eyebrow {
  color: #83521d;
}

.contact-section h2 {
  color: #151713;
}

.contact-copy > p:not(.eyebrow, .contact-status) {
  max-width: 650px;
}

.contact-status {
  display: flex;
  margin: 35px 0 0;
  padding-top: 17px;
  border-top: 1px solid #c5bfb1;
  align-items: center;
  gap: 10px;
  color: #666a60;
  font-family: var(--font-mono);
  font-size: 0.7rem;
}

.contact-status strong {
  color: #3f423b;
}

.contact-reasons {
  border-top: 2px solid #262920;
}

.contact-reasons > p:first-child {
  margin: 12px 0 23px;
  color: #65695f;
  font-family: var(--font-mono);
  font-size: 0.65rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.contact-reasons ul {
  margin: 0;
  padding: 0;
  list-style: none;
}

.contact-reasons li {
  padding: 11px 0;
  border-top: 1px solid #c6c0b3;
  color: #383b34;
  font-size: 0.85rem;
}

.handle-note {
  margin: 31px 0 0;
  color: #696d63;
  font-size: 0.78rem;
}

.handle-note strong {
  color: #7b4e20;
  font-family: var(--font-mono);
}

.site-footer {
  width: var(--content);
  margin: 0 auto;
  padding: 64px 0 30px;
}

.footer-main {
  display: grid;
  padding-bottom: 64px;
  grid-template-columns: 1fr 1fr;
  gap: 90px;
}

.brand--footer {
  margin-bottom: 22px;
}

.footer-main > div > p {
  max-width: 430px;
  margin-bottom: 0;
  color: var(--muted);
}

.footer-main dl {
  margin-bottom: 0;
  border-top: 1px solid var(--line);
}

.footer-main dl div {
  display: grid;
  padding: 13px 0;
  border-bottom: 1px solid var(--line);
  grid-template-columns: 100px 1fr;
}

.footer-main dt {
  color: #70776e;
  font-family: var(--font-mono);
  font-size: 0.6rem;
  letter-spacing: 0.07em;
  text-transform: uppercase;
}

.footer-main dd {
  color: #b5bab1;
  font-size: 0.75rem;
}

.footer-meta {
  display: flex;
  padding-top: 25px;
  border-top: 1px solid var(--line);
  align-items: center;
  justify-content: space-between;
}

.footer-meta p,
.footer-meta nav {
  margin: 0;
  color: #737a70;
  font-family: var(--font-mono);
  font-size: 0.62rem;
  text-transform: uppercase;
}

.footer-meta nav {
  display: flex;
  gap: 24px;
}

.footer-meta a:hover {
  color: var(--paper);
}

.legal-page {
  min-height: 100vh;
  background: var(--paper);
  color: #31342d;
}

.legal-page .site-header {
  position: static;
}

.legal-main {
  width: min(760px, calc(100vw - 48px));
  margin: 0 auto;
  padding: 100px 0 130px;
}

.legal-main h1,
.legal-main h2 {
  color: #181a16;
}

.legal-main h1 {
  font-size: clamp(2.6rem, 7vw, 5rem);
}

.legal-main h2 {
  margin-top: 55px;
  font-size: 1.45rem;
}

.legal-main p,
.legal-main li {
  color: #55594f;
}

.legal-status {
  margin-bottom: 50px;
  padding: 17px 20px;
  border-left: 3px solid var(--accent);
  background: #dcd6c8;
}

.legal-back {
  display: inline-block;
  margin-top: 50px;
  color: #77491a;
  font-weight: 700;
}

@media (max-width: 1040px) {
  :root {
    --content: min(calc(100% - 40px), 920px);
  }

  .site-nav {
    gap: 20px;
  }

  .hero-grid {
    min-height: auto;
    padding-top: 74px;
    grid-template-columns: 1fr;
  }

  .unit-concept {
    width: min(680px, 92%);
    margin: 0 auto;
  }

  .section-heading--split,
  .section-heading--system {
    gap: 55px;
  }

  .mission-grid {
    grid-template-columns: 1fr 0.8fr;
    gap: 75px;
  }

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

  .recovery-sequence {
    max-width: 760px;
  }

  .engineering-grid {
    gap: 65px;
  }

  .testing-note {
    grid-template-columns: 0.8fr 1.2fr;
  }

  .testing-note .text-link {
    grid-column: 2;
  }
}

@media (max-width: 820px) {
  :root {
    --content: calc(100% - 34px);
  }

  html {
    scroll-padding-top: 72px;
  }

  .site-header {
    background: #0b0d0a;
    backdrop-filter: none;
  }

  .header-inner {
    min-height: 64px;
  }

  .js .nav-toggle {
    display: block;
    border-color: #3c4337;
    background: #171a15;
  }

  .site-nav {
    display: flex;
    width: 100%;
    padding: 12px 0 20px;
    align-items: stretch;
    flex-direction: column;
    gap: 0;
  }

  .header-inner {
    flex-wrap: wrap;
  }

  .js .site-nav {
    display: none;
    position: fixed;
    z-index: 500;
    top: 65px;
    right: 0;
    bottom: 0;
    left: 0;
    width: auto;
    padding: 28px 24px 40px;
    border-top: 1px solid #343a30;
    background-color: #090b08;
    background-image: none;
    align-items: stretch;
    flex-direction: column;
    gap: 0;
    box-shadow: 0 30px 60px rgba(0, 0, 0, 0.82);
    backdrop-filter: none;
    isolation: isolate;
    opacity: 1;
    overflow-y: auto;
  }

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

  .site-nav a {
    margin-top: -1px;
    padding: 16px 18px;
    border: 1px solid #2d332a;
    background: #11140f;
    color: #c1c6ba;
    font-size: 1rem;
  }

  .site-nav a:hover,
  .site-nav a[aria-current="page"] {
    position: relative;
    z-index: 1;
    border-color: #5d513f;
    border-left-color: var(--accent);
    background: #181c16;
    color: #f0ebdf;
  }

  .site-nav .nav-cta {
    margin-top: 24px;
    padding: 14px;
    border-color: #6b573b;
    background: #1d1a13;
    text-align: center;
  }

  h1 {
    font-size: clamp(2.85rem, 12vw, 5.3rem);
  }

  .hero-grid {
    padding: 66px 0 86px;
    gap: 68px;
  }

  .unit-concept {
    width: 100%;
  }

  .section-heading--split,
  .section-heading--system,
  .mission-grid,
  .feature-band,
  .engineering-grid,
  .seasonal-control,
  .contact-section,
  .footer-main {
    grid-template-columns: 1fr;
  }

  .section-heading--split,
  .section-heading--system {
    gap: 28px;
    align-items: start;
  }

  .control-comparison {
    grid-template-columns: 1fr;
  }

  .comparison-panel + .comparison-panel {
    border-top: 1px solid var(--line);
    border-left: 0;
  }

  .cable-burden {
    grid-template-columns: 1fr;
  }

  .seasonal-control {
    gap: 54px;
  }

  .mission-grid {
    padding: 100px 0;
    gap: 70px;
  }

  .channel-table-head {
    display: none;
  }

  .channel-table-row {
    padding: 14px 18px;
    grid-template-columns: 1.25fr 1fr 1fr;
    gap: 11px 16px;
  }

  .channel-table-row > span {
    position: relative;
  }

  .channel-table-row > span:nth-child(4) {
    grid-template-columns: minmax(60px, 100px) 1fr;
  }

  .channel-table-row > span:nth-child(4)::before,
  .channel-table-row > span:nth-child(5)::before,
  .channel-table-row > span:nth-child(6)::before {
    display: block;
    margin-bottom: 2px;
    color: #656d64;
    font-size: 0.48rem;
    text-transform: uppercase;
  }

  .channel-table-row > span:nth-child(4)::before { content: "Output"; }
  .channel-table-row > span:nth-child(5)::before { content: "Power"; }
  .channel-table-row > span:nth-child(6)::before { content: "Probe"; }

  .feature-band {
    gap: 35px;
  }

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

  .probe-visual {
    min-height: 520px;
    padding: 70px 40px;
    border-right: 0;
    border-bottom: 1px solid #bcb6a8;
  }

  .probe-copy {
    max-width: none;
    padding: 100px max(17px, calc((100vw - 786px) / 2));
  }

  .timeline-content {
    grid-template-columns: 1fr;
    gap: 25px;
  }

  .testing-note {
    grid-template-columns: 1fr;
    gap: 28px;
  }

  .testing-note .text-link {
    grid-column: auto;
  }

  .contact-section {
    gap: 70px;
  }

  .footer-main {
    gap: 50px;
  }
}

@media (max-width: 580px) {
  :root {
    --content: calc(100% - 28px);
  }

  body {
    font-size: 15px;
  }

  h2 {
    font-size: clamp(2rem, 10vw, 3.2rem);
  }

  .hero-specs {
    grid-template-columns: 1fr;
  }

  .hero-specs div,
  .hero-specs div + div {
    display: grid;
    padding: 11px 0;
    border-right: 0;
    border-bottom: 1px solid var(--line);
    grid-template-columns: 95px 1fr;
  }

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

  .unit-concept::before,
  .unit-concept::after {
    display: none;
  }

  .unit-face {
    min-height: auto;
    padding: 11px;
    grid-template-columns: 1fr;
  }

  .unit-controls {
    display: none;
  }

  .display-channels li {
    grid-template-columns: 40px 0.8fr 49px 80px;
    gap: 5px;
  }

  .display-channels strong {
    font-size: 0.84rem;
  }

  .state {
    font-size: 0.47rem;
  }

  .display-footer span:nth-child(2) {
    display: none;
  }

  .unit-ports {
    grid-template-columns: repeat(5, 1fr);
  }

  .problem-section,
  .system-section,
  .engineering-section,
  .development-section {
    padding-top: 96px;
    padding-bottom: 96px;
  }

  .features-section {
    padding-bottom: 96px;
  }

  .section-heading {
    margin-bottom: 45px;
  }

  .comparison-panel {
    padding: 34px 18px;
  }

  .rack-diagram--shared {
    padding-left: 92px;
  }

  .thermostat-stack {
    width: 72px;
  }

  .thermostat-stack .thermostat-node {
    width: 72px;
    min-height: 67px;
    padding: 9px 6px;
  }

  .thermostat-stack .thermostat-node span {
    font-size: 0.52rem;
  }

  .cable-runs {
    left: 57px;
    width: 48px;
  }

  .rack-diagram li {
    padding: 7px;
    font-size: 0.58rem;
  }

  .rack-diagram--independent li {
    grid-template-columns: 1fr 60px 33px;
    gap: 6px;
  }

  .cable-burden {
    margin-top: 55px;
    padding: 34px 0;
    gap: 28px;
  }

  .seasonal-control {
    margin-top: 74px;
    padding: 25px 18px;
  }

  .workflow-toolbar,
  .workflow-footer {
    align-items: flex-start;
    flex-direction: column;
    gap: 5px;
  }

  .mission-grid {
    padding: 92px 0;
  }

  .mission-copy blockquote {
    margin-top: 38px;
  }

  .console-toolbar {
    align-items: flex-start;
    flex-direction: column;
  }

  .console-key {
    flex-wrap: wrap;
  }

  .channel-table-row {
    grid-template-columns: 1.2fr 1fr;
  }

  .channel-table-row > span:nth-child(4) {
    grid-template-columns: 70px 1fr;
  }

  .console-footer {
    align-items: flex-start;
    flex-direction: column;
    gap: 5px;
  }

  .technical-list,
  .monitor-readout {
    grid-template-columns: 1fr;
  }

  .technical-list li:nth-child(odd) {
    border-right: 0;
  }

  .technical-list li:nth-child(even) {
    padding-left: 0;
  }

  .monitor-readout span {
    border-right: 0;
    border-bottom: 1px solid #4b4f42;
  }

  .monitor-readout span:last-child {
    border-bottom: 0;
  }

  .memory-section {
    padding: 92px 14px;
  }

  .recovery-sequence {
    grid-template-columns: 1fr;
  }

  .recovery-sequence div {
    min-height: 130px;
  }

  .recovery-sequence > i {
    width: 1px;
    height: 34px;
    margin-left: 50%;
  }

  .recovery-sequence > i::after {
    top: auto;
    right: -3px;
    bottom: 0;
    transform: rotate(135deg);
  }

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

  .airflow-panel {
    padding: 15px;
  }

  .enclosure-cutaway {
    min-height: 400px;
  }

  .probe-visual {
    min-height: 440px;
    padding: 55px 25px;
  }

  .socket-bank {
    gap: 17px 11px;
  }

  .connector {
    width: 90px;
    height: 90px;
    margin-top: 45px;
  }

  .probe-copy {
    padding: 92px 14px;
  }

  .spec-list div {
    grid-template-columns: 1fr;
    gap: 6px;
  }

  .timeline-item {
    grid-template-columns: 56px 1fr;
  }

  .timeline-item:not(:last-child)::before {
    left: 20px;
  }

  .timeline-content ul {
    grid-template-columns: 1fr;
  }

  .contact-section {
    padding: 92px 14px;
  }

  .footer-meta {
    align-items: flex-start;
    flex-direction: column;
    gap: 18px;
  }

  .footer-main dl div {
    grid-template-columns: 80px 1fr;
  }
}

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

  *,
  *::before,
  *::after {
    scroll-behavior: auto !important;
    transition-duration: 0.01ms !important;
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
  }
}

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

  body,
  .mission-section,
  .memory-section,
  .probe-section,
  .contact-section {
    background: #fff;
    color: #111;
  }

  h1,
  h2,
  h3,
  .mission-section h2,
  .memory-section h2,
  .probe-section h2,
  .contact-section h2 {
    color: #111;
  }
}