:root {
  --ink: #10282a;
  --ink-soft: #486164;
  --paper: #f2f0e9;
  --paper-deep: #e5e3db;
  --line: rgba(16, 40, 42, .17);
  --signal: #df4a2f;
  --signal-dark: #b93622;
  --teal: #153f41;
  --teal-light: #2f7776;
  --white: #fbfaf6;
  --mono: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  --sans: 'Avenir Next', Avenir, -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: var(--sans);
  -webkit-font-smoothing: antialiased;
}
a { color: inherit; }
button, input { font: inherit; }

.site-header {
  width: min(1460px, calc(100% - 64px));
  height: 92px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  border-bottom: 1px solid var(--line);
}
.brand {
  display: inline-flex;
  align-items: center;
  gap: 13px;
  color: var(--ink);
  font: 700 15px/1 var(--sans);
  letter-spacing: .16em;
  text-decoration: none;
}
.brand-glyph {
  position: relative;
  width: 31px;
  height: 31px;
  display: inline-block;
  border: 2px solid var(--ink);
  transform: rotate(45deg);
}
.brand-glyph::before {
  content: '';
  position: absolute;
  inset: 5px;
  border: 1px solid var(--ink);
}
.brand-glyph i:first-child,
.brand-glyph i:last-child {
  position: absolute;
  width: 4px;
  height: 4px;
  border-radius: 50%;
  background: var(--signal);
}
.brand-glyph i:first-child { top: 2px; left: 2px; }
.brand-glyph i:last-child { bottom: 2px; right: 2px; }
.site-header nav { display: flex; align-items: center; gap: 35px; }
.site-header nav a {
  font-size: 13px;
  font-weight: 600;
  text-decoration: none;
}
.site-header nav a:not(.nav-cta):hover { color: var(--signal); }
.nav-cta {
  padding: 11px 16px;
  color: var(--white);
  background: var(--ink);
}
.nav-cta:hover { background: var(--signal); }

.hero {
  width: min(1460px, calc(100% - 64px));
  min-height: 700px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: 1.05fr .95fr;
  align-items: center;
  gap: 8vw;
  padding: 70px 0 85px;
}
.eyebrow {
  margin: 0 0 22px;
  color: var(--signal-dark);
  font: 500 11px/1.4 var(--mono);
  letter-spacing: .15em;
  text-transform: uppercase;
}
.hero h1 {
  max-width: 790px;
  margin: 0;
  color: var(--ink);
  font-size: clamp(54px, 6.1vw, 98px);
  line-height: .98;
  letter-spacing: -.065em;
}
.hero h1 em { color: var(--teal-light); font-style: normal; font-weight: 500; }
.hero-lede {
  max-width: 680px;
  margin: 34px 0 0;
  color: var(--ink-soft);
  font-size: 17px;
  line-height: 1.75;
}
.hero-actions { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 37px; }
.button {
  min-height: 50px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0 23px;
  border: 1px solid transparent;
  font-size: 13px;
  font-weight: 700;
  text-decoration: none;
  cursor: pointer;
  transition: transform .18s ease, background .18s ease, border-color .18s ease;
}
.button:hover { transform: translateY(-2px); }
.button-primary { color: var(--white); background: var(--signal); }
.button-primary:hover { background: var(--signal-dark); }
.button-secondary { border-color: var(--line); background: transparent; }
.button-secondary:hover { border-color: var(--ink); }
.button-light { color: var(--ink); background: var(--paper); }
.release-note {
  display: flex;
  align-items: center;
  gap: 8px;
  margin: 28px 0 0;
  color: var(--ink-soft);
  font: 400 11px/1.5 var(--mono);
}
.release-note span, .release-pill > span {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: #42a66f;
  box-shadow: 0 0 0 4px rgba(66, 166, 111, .13);
}
.release-note strong { color: var(--ink); }

.system-figure {
  position: relative;
  min-height: 520px;
  overflow: hidden;
  border: 1px solid var(--line);
  background: #eae8e0;
}
.figure-grid {
  position: absolute;
  inset: 0;
  opacity: .55;
  background-image: linear-gradient(var(--line) 1px, transparent 1px), linear-gradient(90deg, var(--line) 1px, transparent 1px);
  background-size: 42px 42px;
  mask-image: linear-gradient(to bottom, #000, transparent 95%);
}
.bus {
  position: absolute;
  color: var(--ink-soft);
  font: 500 9px/1 var(--mono);
  letter-spacing: .12em;
}
.bus::before { content: ''; position: absolute; background: var(--signal); }
.bus-n2k { top: 50%; left: 0; width: 100%; border-top: 2px solid var(--ink); }
.bus-n2k::before { top: -5px; left: 11%; width: 8px; height: 8px; border-radius: 50%; }
.bus-n2k span { position: absolute; top: 14px; left: 21px; }
.bus-nexus { top: 0; left: 51%; height: 100%; border-left: 2px solid var(--ink); }
.bus-nexus::before { left: -5px; bottom: 14%; width: 8px; height: 8px; border-radius: 50%; }
.bus-nexus span { position: absolute; top: 18px; left: 13px; writing-mode: vertical-rl; }
.diagram-device {
  position: absolute;
  z-index: 2;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  border: 1px solid var(--ink);
  background: var(--paper);
  box-shadow: 8px 8px 0 rgba(16, 40, 42, .09);
}
.diagram-device small { color: var(--ink-soft); font: 500 8px/1 var(--mono); letter-spacing: .1em; }
.diagram-device strong { font: 500 16px/1 var(--mono); }
.diagram-device-center {
  top: 50%;
  left: 51%;
  width: 178px;
  height: 178px;
  padding: 19px;
  transform: translate(-50%, -50%);
  color: var(--white);
  background: var(--teal);
  border: 0;
  box-shadow: 12px 12px 0 rgba(16, 40, 42, .14);
}
.diagram-device-center small, .diagram-device-center span { color: rgba(255,255,255,.62); font: 500 9px/1 var(--mono); }
.diagram-device-center strong { color: var(--white); font: 600 61px/1 var(--sans); letter-spacing: -.06em; }
.diagram-device-wind { top: 14%; left: 10%; width: 135px; height: 83px; padding: 14px; }
.diagram-device-engine { right: 8%; bottom: 13%; width: 142px; height: 84px; padding: 14px; }
.diagram-device-nav { left: 11%; bottom: 11%; width: 140px; height: 84px; padding: 14px; }
.figure-status {
  position: absolute;
  z-index: 2;
  top: 22px;
  right: 22px;
  display: flex;
  gap: 8px;
  align-items: center;
  font: 500 8px/1 var(--mono);
  letter-spacing: .08em;
}
.figure-status i { width: 6px; height: 6px; border-radius: 50%; background: #42a66f; }

.signal-strip {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}
.signal-strip div { padding: 29px 4vw; border-right: 1px solid var(--line); }
.signal-strip div:last-child { border-right: 0; }
.signal-strip strong { display: block; font-size: 17px; }
.signal-strip span { display: block; margin-top: 7px; color: var(--ink-soft); font: 400 9px/1 var(--mono); letter-spacing: .08em; text-transform: uppercase; }

.section { width: min(1280px, calc(100% - 64px)); margin: 0 auto; padding: 145px 0; }
.section-heading { display: grid; grid-template-columns: .55fr 1.45fr 1fr; gap: 60px; align-items: start; }
.section-heading h2 { margin: -7px 0 0; font-size: clamp(36px, 4vw, 58px); line-height: 1.08; letter-spacing: -.045em; }
.section-heading > p:last-child { margin: 0; color: var(--ink-soft); font-size: 15px; line-height: 1.75; }
.feature-grid { display: grid; grid-template-columns: repeat(3, 1fr); margin-top: 90px; border-top: 1px solid var(--line); }
.feature-grid article { min-height: 270px; padding: 28px 40px 0 0; border-right: 1px solid var(--line); }
.feature-grid article + article { padding-left: 40px; }
.feature-grid article:last-child { border-right: 0; }
.feature-index { color: var(--signal-dark); font: 500 10px/1 var(--mono); }
.feature-grid h3 { margin: 63px 0 14px; font-size: 20px; }
.feature-grid p { margin: 0; color: var(--ink-soft); font-size: 14px; line-height: 1.7; }

.hardware-section { padding-top: 70px; }
.section-heading.compact { grid-template-columns: .5fr 1.2fr 1.1fr; }
.hardware-list { margin-top: 75px; border-top: 1px solid var(--ink); }
.hardware-list article {
  min-height: 160px;
  display: grid;
  grid-template-columns: 55px 120px minmax(300px, 1fr) 140px;
  align-items: center;
  gap: 25px;
  border-bottom: 1px solid var(--line);
}
.hardware-id { display: flex; align-items: center; gap: 13px; color: var(--ink-soft); font: 500 10px/1 var(--mono); }
.hardware-id i { width: 8px; height: 8px; border: 2px solid var(--signal); transform: rotate(45deg); }
.hardware-photo { width: 118px; height: 118px; display: grid; place-items: center; margin: 0; padding: 8px; background: #fff; }
.hardware-photo img { display: block; width: 100%; height: 100%; object-fit: contain; }
.hardware-list p { margin: 0 0 7px; color: var(--ink-soft); font: 500 9px/1 var(--mono); letter-spacing: .09em; }
.hardware-list h3 { margin: 0; font-size: 18px; }
.hardware-list code { color: var(--ink-soft); font: 400 11px/1 var(--mono); }
.hardware-list a { justify-self: end; font-size: 13px; font-weight: 700; text-decoration: none; }
.hardware-list a:hover { color: var(--signal); }
.hardware-status { justify-self: end; color: var(--ink-soft); font: 500 9px/1.3 var(--mono); letter-spacing: .08em; text-align: right; }

.installer-callout {
  min-height: 375px;
  display: grid;
  grid-template-columns: 1.4fr 1fr auto;
  align-items: center;
  gap: 7vw;
  padding: 75px max(32px, calc((100vw - 1280px) / 2));
  color: var(--white);
  background: var(--teal);
}
.installer-callout .eyebrow { color: #d6826c; }
.installer-callout h2 { max-width: 650px; margin: 0; font-size: clamp(35px, 4vw, 56px); line-height: 1.1; letter-spacing: -.045em; }
.installer-callout > p { max-width: 390px; color: rgba(255,255,255,.65); font-size: 15px; line-height: 1.75; }

footer {
  min-height: 150px;
  display: grid;
  grid-template-columns: 1fr auto;
  align-items: center;
  gap: 30px;
  width: min(1460px, calc(100% - 64px));
  margin: 0 auto;
}
footer p { color: var(--ink-soft); font: 400 10px/1.4 var(--mono); }
footer > a:last-child { justify-self: end; font-size: 12px; font-weight: 700; }

/* Product site */
.product-hero {
  width: min(1460px, calc(100% - 64px));
  min-height: 760px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: .76fr 1.24fr;
  align-items: center;
  gap: clamp(45px, 6vw, 95px);
  padding: 75px 0 90px;
}
.product-hero h1 {
  margin: 0;
  color: var(--ink);
  font-size: clamp(58px, 6.4vw, 98px);
  line-height: .96;
  letter-spacing: -.068em;
}
.product-hero h1 em { color: var(--teal-light); font-style: normal; font-weight: 500; }
.local-note { display: flex; align-items: center; gap: 10px; margin: 27px 0 0; color: var(--ink-soft); font: 400 10px/1.5 var(--mono); }
.local-note span { width: 7px; height: 7px; border-radius: 50%; background: #42a66f; box-shadow: 0 0 0 4px rgba(66, 166, 111, .13); }
.hero-product-screen { position: relative; margin: 0; padding: 14px; border: 1px solid rgba(255,255,255,.09); background: #080d14; box-shadow: 18px 18px 0 rgba(16, 40, 42, .11); }
.hero-product-screen::before { content: ''; position: absolute; top: -1px; left: 13%; width: 22%; height: 3px; background: var(--signal); }
.hero-product-screen img { display: block; width: 100%; height: auto; aspect-ratio: 16 / 10; object-fit: cover; }
.hero-product-screen figcaption { display: flex; align-items: center; justify-content: space-between; gap: 30px; padding: 17px 7px 4px; color: #a2adbe; }
.hero-product-screen figcaption span { color: #f66058; font: 500 9px/1 var(--mono); letter-spacing: .12em; }
.hero-product-screen figcaption strong { font-size: 12px; font-weight: 500; text-align: right; }

.protocol-strip { display: grid; grid-template-columns: repeat(5, 1fr); border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); }
.protocol-strip article { min-height: 128px; display: flex; flex-direction: column; justify-content: center; padding: 24px 3vw; border-right: 1px solid var(--line); }
.protocol-strip article:last-child { border-right: 0; }
.protocol-strip strong { margin-top: 12px; font-size: 17px; }
.protocol-strip small { margin-top: 5px; color: var(--ink-soft); font: 400 9px/1 var(--mono); letter-spacing: .08em; text-transform: uppercase; }
.protocol-state { width: fit-content; padding: 4px 6px; border: 1px solid currentColor; font: 600 7px/1 var(--mono); letter-spacing: .12em; }
.protocol-state.current { color: var(--signal-dark); }
.protocol-state.available { color: var(--teal-light); }
.protocol-state.planned { color: #8b6d39; }

.wide-heading { grid-template-columns: .5fr 1.45fr 1.05fr; }
.capability-section { padding-bottom: 120px; }
.capability-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1px; margin-top: 80px; border: 1px solid var(--line); background: var(--line); }
.capability-grid article { min-height: 410px; padding: 32px; background: var(--paper); }
.capability-grid h3 { margin: 86px 0 17px; font-size: 24px; letter-spacing: -.025em; }
.capability-grid p { margin: 0; color: var(--ink-soft); font-size: 14px; line-height: 1.75; }
.capability-grid ul, .display-story ul { margin: 28px 0 0; padding: 0; list-style: none; }
.capability-grid li, .display-story li { position: relative; padding: 9px 0 9px 17px; border-top: 1px solid var(--line); color: var(--ink-soft); font: 500 10px/1.45 var(--mono); }
.capability-grid li::before, .display-story li::before { content: ''; position: absolute; top: 13px; left: 0; width: 6px; height: 6px; border: 1px solid var(--signal); transform: rotate(45deg); }

.display-section { color: #edf2f4; background: #080e16; }
.display-section-inner { width: min(1360px, calc(100% - 64px)); margin: 0 auto; padding: 135px 0 150px; }
.display-heading { display: grid; grid-template-columns: .55fr 1.45fr 1fr; gap: 60px; align-items: start; }
.display-heading .eyebrow { color: #f06c5d; }
.display-heading h2 { max-width: 600px; margin: -7px 0 0; color: #f3f5f5; font-size: clamp(40px, 4.5vw, 66px); line-height: 1.05; letter-spacing: -.05em; }
.display-heading > p:last-child { margin: 0; color: #8592a4; font-size: 15px; line-height: 1.75; }
.display-story { display: grid; grid-template-columns: minmax(0, 1.55fr) minmax(280px, .45fr); gap: clamp(45px, 6vw, 95px); align-items: center; margin-top: 100px; }
.display-story-engine { grid-template-columns: minmax(280px, .45fr) minmax(0, 1.55fr); margin-top: 135px; }
.display-story figure { position: relative; overflow: hidden; margin: 0; padding: 10px; border: 1px solid rgba(255,255,255,.16); background: #03070c; box-shadow: 16px 16px 0 rgba(53,122,125,.14); }
.display-story figure::after { content: ''; position: absolute; inset: 10px; border: 1px solid rgba(112, 207, 220, .08); pointer-events: none; }
.display-story img { display: block; width: 100%; height: auto; aspect-ratio: 16 / 10; object-fit: cover; }
.display-story > div > span { color: #f06c5d; font: 500 9px/1 var(--mono); letter-spacing: .12em; }
.display-story h3 { margin: 20px 0 17px; color: #f3f5f5; font-size: 29px; line-height: 1.2; letter-spacing: -.03em; }
.display-story p { margin: 0; color: #909cad; font-size: 14px; line-height: 1.75; }
.display-story li { border-color: rgba(255,255,255,.12); color: #a9b3c1; }

.sailing-tools-section { padding-bottom: 135px; }
.tool-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1px; margin-top: 80px; border: 1px solid var(--line); background: var(--line); }
.tool-card { min-height: 330px; padding: 31px; background: var(--paper); }
.tool-card-wide { grid-column: span 2; min-height: 390px; color: var(--white); background: var(--teal); }
.tool-card > span { color: var(--signal-dark); font: 600 9px/1 var(--mono); letter-spacing: .12em; }
.tool-card-wide > span { color: #e48672; }
.tool-card h3 { max-width: 520px; margin: 77px 0 16px; font-size: 24px; line-height: 1.25; letter-spacing: -.025em; }
.tool-card p { max-width: 650px; margin: 0; color: var(--ink-soft); font-size: 14px; line-height: 1.75; }
.tool-card-wide h3 { margin-top: 63px; color: var(--white); font-size: 34px; }
.tool-card-wide p { color: rgba(255,255,255,.66); }
.data-ribbon { display: grid; grid-template-columns: auto 1fr auto 1fr auto 1fr; align-items: baseline; gap: 9px 15px; margin-top: 35px; padding-top: 25px; border-top: 1px solid rgba(255,255,255,.16); }
.data-ribbon b { color: var(--white); font: 600 22px/1 var(--mono); }
.data-ribbon small { color: rgba(255,255,255,.45); font: 500 8px/1 var(--mono); letter-spacing: .1em; }

.equipment-section { padding: 135px 0 150px; background: var(--paper-deep); }
.equipment-inner { width: min(1280px, calc(100% - 64px)); margin: 0 auto; }
.sensor-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; margin-top: 80px; }
.sensor-grid article { min-height: 390px; display: flex; flex-direction: column; padding: 31px; border: 1px solid var(--line); background: var(--white); }
.equipment-type { color: var(--signal-dark); font: 600 9px/1 var(--mono); letter-spacing: .11em; }
.sensor-grid h3 { margin: 75px 0 16px; font-size: 25px; letter-spacing: -.025em; }
.sensor-grid p { margin: 0; color: var(--ink-soft); font-size: 14px; line-height: 1.75; }
.equipment-signals { display: flex; flex-wrap: wrap; gap: 6px; margin-top: auto; padding-top: 28px; }
.equipment-signals span { padding: 6px 8px; border: 1px solid var(--line); color: var(--ink-soft); font: 500 8px/1 var(--mono); letter-spacing: .08em; }
.integration-heading { display: grid; grid-template-columns: .5fr 2.5fr; gap: 60px; align-items: start; margin-top: 135px; }
.integration-heading h2 { max-width: 700px; margin: -7px 0 0; font-size: clamp(35px, 4vw, 54px); line-height: 1.08; letter-spacing: -.045em; }
.integration-list { margin-top: 65px; border-top: 1px solid var(--ink); }
.integration-list article { min-height: 115px; display: grid; grid-template-columns: 60px 1fr auto; align-items: center; gap: 22px; border-bottom: 1px solid var(--line); }
.integration-list article > span { color: var(--signal-dark); font: 500 10px/1 var(--mono); }
.integration-list p { margin: 0 0 7px; color: var(--ink-soft); font: 500 9px/1 var(--mono); letter-spacing: .1em; }
.integration-list h3 { margin: 0; font-size: 19px; }
.integration-list small { color: var(--ink-soft); font: 500 9px/1.4 var(--mono); letter-spacing: .08em; text-align: right; }

.diagnostic-section { min-height: 620px; display: grid; grid-template-columns: .8fr 1.2fr; gap: 8vw; padding: 115px max(32px, calc((100vw - 1280px) / 2)); color: var(--white); background: var(--teal); }
.diagnostic-copy .eyebrow { color: #e48672; }
.diagnostic-copy h2 { max-width: 560px; margin: 0; font-size: clamp(42px, 5vw, 68px); line-height: 1.03; letter-spacing: -.055em; }
.diagnostic-copy > p:last-child { max-width: 520px; margin: 30px 0 0; color: rgba(255,255,255,.62); font-size: 14px; line-height: 1.75; }
.diagnostic-list { border-top: 1px solid rgba(255,255,255,.6); }
.diagnostic-list article { min-height: 96px; display: grid; grid-template-columns: 45px 1fr; align-content: center; gap: 8px 18px; border-bottom: 1px solid rgba(255,255,255,.15); }
.diagnostic-list article > span { grid-row: span 2; color: #e48672; font: 500 9px/1 var(--mono); }
.diagnostic-list strong { font-size: 17px; }
.diagnostic-list small { color: rgba(255,255,255,.5); font: 500 8px/1.4 var(--mono); letter-spacing: .08em; }
.diagnostic-list .planned-row strong { color: rgba(255,255,255,.72); }

@media (max-width: 1100px) {
  .product-hero { grid-template-columns: 1fr; padding-top: 75px; }
  .product-hero-copy { max-width: 820px; }
  .protocol-strip { grid-template-columns: repeat(3, 1fr); }
  .protocol-strip article:nth-child(3) { border-right: 0; }
  .protocol-strip article:nth-child(-n+3) { border-bottom: 1px solid var(--line); }
  .display-story, .display-story-engine { grid-template-columns: 1fr; }
  .display-story-engine > div { order: 2; }
  .display-story-engine > figure { order: 1; }
  .sensor-grid { grid-template-columns: 1fr; }
  .sensor-grid article { min-height: 310px; }
  .sensor-grid h3 { margin-top: 52px; }
}

@media (max-width: 980px) {
  .wide-heading, .display-heading { grid-template-columns: 1fr; gap: 25px; }
  .capability-grid { grid-template-columns: 1fr; }
  .capability-grid article { min-height: 340px; }
  .capability-grid h3 { margin-top: 55px; }
  .display-section-inner, .equipment-inner { width: min(100% - 40px, 1360px); }
  .tool-grid { grid-template-columns: 1fr 1fr; }
  .diagnostic-section { grid-template-columns: 1fr; gap: 70px; }
}

@media (max-width: 680px) {
  .product-hero { width: min(100% - 40px, 1460px); min-height: 0; padding: 65px 0 75px; }
  .product-hero h1 { font-size: 51px; }
  .product-hero .hero-lede { font-size: 15px; }
  .hero-product-screen { padding: 7px; box-shadow: 9px 9px 0 rgba(16, 40, 42, .11); }
  .hero-product-screen figcaption { align-items: flex-start; flex-direction: column; gap: 7px; }
  .hero-product-screen figcaption strong { text-align: left; }
  .protocol-strip { grid-template-columns: 1fr 1fr; }
  .protocol-strip article { min-height: 110px; padding: 20px; border-bottom: 1px solid var(--line); }
  .protocol-strip article:nth-child(odd) { border-right: 1px solid var(--line); }
  .protocol-strip article:nth-child(even) { border-right: 0; }
  .protocol-strip article:last-child { grid-column: 1 / -1; border-bottom: 0; }
  .display-section-inner { padding: 95px 0 105px; }
  .display-story, .display-story-engine { gap: 38px; margin-top: 70px; }
  .display-story-engine { margin-top: 100px; }
  .tool-grid { grid-template-columns: 1fr; }
  .tool-card-wide { grid-column: auto; min-height: 430px; }
  .tool-card { min-height: 290px; }
  .data-ribbon { grid-template-columns: auto 1fr; }
  .equipment-section { padding: 95px 0 105px; }
  .integration-heading { grid-template-columns: 1fr; gap: 22px; margin-top: 95px; }
  .integration-list article { grid-template-columns: 38px 1fr; padding: 22px 0; }
  .integration-list small { grid-column: 2; text-align: left; }
  .diagnostic-section { padding-top: 90px; padding-bottom: 90px; }
}

/* Browser installer */
.installer-shell { width: min(1120px, calc(100% - 64px)); margin: 0 auto; }
.installer-intro { padding: 95px 0 65px; text-align: center; }
.installer-intro h1 { margin: 0; font-size: clamp(58px, 8vw, 104px); line-height: 1; letter-spacing: -.065em; }
.installer-intro > p:not(.eyebrow) { max-width: 660px; margin: 30px auto 0; color: var(--ink-soft); font-size: 16px; line-height: 1.75; }
.preview-pill {
  width: fit-content;
  display: flex;
  align-items: center;
  gap: 10px;
  margin: 30px auto 0;
  padding: 10px 14px;
  border: 1px solid var(--line);
  color: var(--teal);
  font: 600 10px/1 var(--mono);
  letter-spacing: .1em;
}
.preview-pill span {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: #d49b38;
  box-shadow: 0 0 0 4px rgba(212, 155, 56, .14);
}
.setup-flow { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1px; margin: 0 0 70px; border: 1px solid var(--line); background: var(--line); }
.setup-flow article { min-height: 190px; padding: 28px; background: var(--paper); }
.setup-flow article > span { color: var(--signal-dark); font: 500 10px/1 var(--mono); }
.setup-flow h2 { margin: 48px 0 12px; font-size: 19px; }
.setup-flow p { margin: 0; color: var(--ink-soft); font-size: 13px; line-height: 1.7; }
.release-pill {
  width: fit-content;
  display: flex;
  align-items: center;
  gap: 12px;
  margin: 30px auto 0;
  padding: 10px 14px;
  border: 1px solid var(--line);
  font: 500 10px/1 var(--mono);
}
.release-pill code { color: var(--ink-soft); }
.release-pill em { padding-left: 12px; border-left: 1px solid var(--line); color: var(--teal-light); font-style: normal; letter-spacing: .08em; }
.install-panel { margin-bottom: 105px; padding: 55px 64px 45px; border: 1px solid var(--line); background: var(--white); box-shadow: 14px 14px 0 rgba(16, 40, 42, .07); }
.panel-step { display: flex; align-items: flex-start; gap: 22px; }
.panel-step > span { color: var(--signal-dark); font: 500 10px/1 var(--mono); }
.panel-step p { margin: 0 0 10px; color: var(--ink-soft); font: 500 9px/1 var(--mono); letter-spacing: .11em; }
.panel-step h2 { margin: 0; font-size: 24px; letter-spacing: -.025em; }
.board-picker { display: grid; grid-template-columns: 1fr 1fr; gap: 15px; margin: 33px 0 0 32px; }
.board-picker-note { margin: 24px 0 0 32px; color: var(--ink-soft); font-size: 12px; line-height: 1.6; }
.board-card {
  position: relative;
  min-height: 375px;
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  padding: 25px;
  border: 1px solid var(--line);
  color: var(--ink);
  background: var(--paper);
  text-align: left;
  cursor: pointer;
}
.board-card:hover { border-color: var(--teal-light); }
.board-card.selected { border: 2px solid var(--teal); padding: 24px; background: #eef0e9; }
.board-radio { position: absolute; top: 22px; right: 22px; width: 17px; height: 17px; border: 1px solid var(--ink-soft); border-radius: 50%; }
.board-card.selected .board-radio { border: 5px solid var(--teal); }
.board-kind { color: var(--signal-dark); font: 500 9px/1 var(--mono); letter-spacing: .1em; }
.board-card-image { width: 100%; height: 160px; min-height: 0; flex: 0 0 160px; display: grid; place-items: center; overflow: hidden; margin-top: 20px; padding: 10px; background: #fff; }
.board-card-image img { display: block; width: 100%; height: 100%; min-width: 0; min-height: 0; object-fit: contain; }
.board-card strong { margin-top: 18px; font-size: 17px; line-height: 1.4; }
.board-card code { margin-top: 15px; color: var(--ink-soft); font: 400 10px/1 var(--mono); }
.board-card small { margin-top: auto; color: var(--ink-soft); font: 400 9px/1 var(--mono); }
.board-card-preview { cursor: default; background: #f5f3ec; }
.board-card-preview:hover { border-color: var(--line); }
.board-preview-label { position: absolute; top: 18px; right: 18px; padding: 6px 8px; color: var(--teal); border: 1px solid var(--teal-light); font: 600 8px/1 var(--mono); letter-spacing: .1em; }
.install-preview { min-height: 100px; display: flex; align-items: center; justify-content: space-between; gap: 24px; margin: 40px 0 0 32px; padding: 22px 24px; border: 1px solid var(--line); background: var(--paper); }
.install-preview > div { display: flex; flex-direction: column; gap: 7px; }
.install-preview p { margin: 0; color: var(--signal-dark); font: 500 9px/1 var(--mono); letter-spacing: .1em; }
.install-preview strong { font-size: 13px; }
.install-preview span { color: var(--ink-soft); font: 400 9px/1.5 var(--mono); }
.install-preview button:disabled { cursor: not-allowed; background: #839090; transform: none; }
.selection-warning { margin: 15px 0 0 32px; padding: 20px 22px; border-left: 3px solid var(--signal); background: #f4e8df; }
.selection-warning strong { font-size: 13px; }
.selection-warning p { margin: 6px 0 14px; color: var(--ink-soft); font-size: 12px; line-height: 1.6; }
.selection-warning label { display: flex; gap: 9px; align-items: flex-start; font-size: 12px; font-weight: 700; line-height: 1.5; cursor: pointer; }
.selection-warning input { margin-top: 2px; accent-color: var(--teal); }
.connect-step, .write-step { margin-top: 52px; padding-top: 46px; border-top: 1px solid var(--line); }
.connection-note { display: flex; align-items: center; gap: 20px; margin: 28px 0 0 32px; padding: 22px; background: var(--paper); }
.connection-note p { margin: 0; color: var(--ink-soft); font-size: 12px; line-height: 1.6; }
.usb-symbol { position: relative; flex: 0 0 38px; height: 38px; border: 1px solid var(--line); }
.usb-symbol::before, .usb-symbol::after, .usb-symbol i { content: ''; position: absolute; background: var(--ink); }
.usb-symbol::before { width: 2px; height: 18px; left: 18px; top: 10px; }
.usb-symbol::after { width: 8px; height: 2px; left: 14px; top: 17px; }
.usb-symbol i { width: 5px; height: 5px; left: 22px; top: 15px; transform: rotate(45deg); }
.install-action { min-height: 92px; display: flex; align-items: center; justify-content: space-between; gap: 25px; margin: 28px 0 0 32px; padding: 18px 20px 18px 24px; border: 1px solid var(--line); background: var(--paper); }
.install-action > div { display: flex; flex-direction: column; gap: 7px; }
.install-action strong { font-size: 13px; }
.install-action span { color: var(--ink-soft); font: 400 9px/1.4 var(--mono); }
.install-action[aria-disabled="true"] { opacity: .62; }
.install-button { border: 0; }
.install-button:disabled { cursor: not-allowed; background: #839090; transform: none; }
.browser-message { display: block; max-width: 300px; color: var(--signal-dark); font-size: 12px; line-height: 1.5; text-align: right; }
.destructive-note { margin: 24px 0 0 32px; color: var(--ink-soft); font-size: 11px; line-height: 1.65; }
.destructive-note strong { color: var(--signal-dark); }
.requirements-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1px; margin-bottom: 125px; background: var(--line); border: 1px solid var(--line); }
.requirements-grid article { min-height: 260px; padding: 30px; background: var(--paper); }
.requirements-grid article > span { color: var(--signal-dark); font: 500 10px/1 var(--mono); }
.requirements-grid h2 { margin: 67px 0 14px; font-size: 19px; }
.requirements-grid p { margin: 0; color: var(--ink-soft); font-size: 13px; line-height: 1.7; }
.requirements-grid code { font: 400 11px/1 var(--mono); }
.recovery-section { display: grid; grid-template-columns: 1fr 1fr; gap: 100px; padding: 80px 0 105px; border-top: 1px solid var(--line); }
.recovery-section h2 { margin: 0; font-size: 40px; line-height: 1.15; letter-spacing: -.04em; }
.recovery-section ol { margin: 0; padding: 0; list-style: none; counter-reset: step; }
.recovery-section li { position: relative; min-height: 56px; padding: 0 0 24px 46px; color: var(--ink-soft); font-size: 13px; line-height: 1.65; counter-increment: step; }
.recovery-section li::before { content: counter(step, decimal-leading-zero); position: absolute; left: 0; top: 4px; color: var(--signal-dark); font: 500 9px/1 var(--mono); }
.integrity-section { display: grid; grid-template-columns: 1fr 1fr auto; align-items: center; gap: 60px; margin-bottom: 110px; padding: 42px; color: var(--white); background: var(--teal); }
.integrity-section .eyebrow { color: #d6826c; }
.integrity-section h2 { margin: 0; font-size: 25px; }
.integrity-section > p { color: rgba(255,255,255,.65); font-size: 12px; line-height: 1.7; }
.integrity-section > a { font-size: 12px; font-weight: 700; white-space: nowrap; text-decoration: none; }

.not-found { min-height: 100vh; display: grid; place-items: center; }
.not-found main { width: min(760px, calc(100% - 48px)); }
.not-found .eyebrow { margin-top: 100px; }
.not-found h1 { margin: 0 0 40px; font-size: clamp(44px, 7vw, 82px); line-height: 1.05; letter-spacing: -.055em; }

@media (max-width: 980px) {
  .site-header { width: min(100% - 40px, 1460px); }
  .site-header nav a:not(.nav-cta) { display: none; }
  .hero { width: min(100% - 40px, 1460px); grid-template-columns: 1fr; padding-top: 65px; }
  .system-figure { min-height: 500px; }
  .signal-strip { grid-template-columns: 1fr 1fr; }
  .signal-strip div:nth-child(2) { border-right: 0; }
  .signal-strip div:nth-child(-n+2) { border-bottom: 1px solid var(--line); }
  .section { width: min(100% - 40px, 1280px); padding: 100px 0; }
  .section-heading, .section-heading.compact { grid-template-columns: 1fr; gap: 25px; }
  .feature-grid { margin-top: 60px; }
  .hardware-list article { grid-template-columns: 45px 105px 1fr auto; padding: 22px 0; }
  .hardware-photo { width: 100px; height: 100px; }
  .hardware-list article code { display: none; }
  .installer-callout { grid-template-columns: 1fr; gap: 28px; padding-top: 70px; padding-bottom: 70px; }
  .installer-callout > p { margin: 0; }
  .installer-shell { width: min(100% - 40px, 1120px); }
  .setup-flow { grid-template-columns: 1fr 1fr; }
  .integrity-section { grid-template-columns: 1fr; gap: 20px; }
}

@media (max-width: 680px) {
  .site-header { height: 78px; }
  .nav-cta { padding: 10px 12px; font-size: 11px !important; }
  .hero { min-height: 0; gap: 60px; padding: 60px 0; }
  .hero h1 { font-size: 50px; }
  .hero-lede { font-size: 15px; }
  .system-figure { min-height: 430px; }
  .diagram-device-center { width: 145px; height: 145px; }
  .diagram-device-wind { left: 5%; }
  .diagram-device-engine { right: 4%; }
  .diagram-device-nav { left: 5%; }
  .signal-strip div { padding: 22px 20px; }
  .signal-strip strong { font-size: 14px; }
  .feature-grid { grid-template-columns: 1fr; }
  .feature-grid article, .feature-grid article + article { min-height: 220px; padding: 28px 0; border-right: 0; border-bottom: 1px solid var(--line); }
  .feature-grid h3 { margin-top: 45px; }
  .hardware-list article { grid-template-columns: 38px 85px 1fr; gap: 14px; }
  .hardware-photo { width: 82px; height: 82px; }
  .hardware-list article > a { grid-column: 3; justify-self: start; }
  .hardware-list article > .hardware-status { grid-column: 3; justify-self: start; text-align: left; }
  .hardware-id { align-self: start; padding-top: 4px; }
  footer { width: min(100% - 40px, 1460px); grid-template-columns: 1fr; padding: 45px 0; }
  footer > a:last-child { justify-self: start; }
  .installer-intro { padding-top: 70px; }
  .setup-flow { grid-template-columns: 1fr; }
  .install-panel { padding: 35px 20px; box-shadow: 8px 8px 0 rgba(16, 40, 42, .07); }
  .board-picker { grid-template-columns: 1fr; margin-left: 0; }
  .board-picker-note { margin-left: 0; }
  .install-preview { margin-left: 0; align-items: flex-start; flex-direction: column; }
  .selection-warning, .connection-note, .install-action, .destructive-note { margin-left: 0; }
  .install-action { align-items: flex-start; flex-direction: column; }
  .requirements-grid { grid-template-columns: 1fr; }
  .requirements-grid article { min-height: 225px; }
  .recovery-section { grid-template-columns: 1fr; gap: 45px; }
  .release-pill { flex-wrap: wrap; justify-content: center; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { transition: none !important; }
}