:root {
  --paper: #f4f0e9;
  --paper-deep: #e8e1d7;
  --paper-light: #fbfaf6;
  --ink: #181a1a;
  --ink-soft: #282b2b;
  --muted: #716f69;
  --line: rgba(24, 26, 26, 0.15);
  --line-light: rgba(255, 255, 255, 0.15);
  --coral: #ff735f;
  --coral-deep: #e95343;
  --lime: #b9ef6a;
  --white: #ffffff;
  --radius: 26px;
  --wrap: min(1380px, calc(100vw - 64px));
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  scroll-padding-top: 82px;
}

body {
  margin: 0;
  color: var(--ink);
  background: var(--paper);
  font-family: Inter, "Helvetica Neue", Arial, sans-serif;
  font-size: 16px;
  line-height: 1.45;
  -webkit-font-smoothing: antialiased;
}

body.menu-open {
  overflow: hidden;
}

button,
input,
a {
  font: inherit;
}

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

a {
  color: inherit;
  text-decoration: none;
}

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

button {
  color: inherit;
}

::selection {
  color: var(--ink);
  background: var(--lime);
}

.skip-link {
  position: fixed;
  z-index: 999;
  top: 8px;
  left: 8px;
  padding: 10px 14px;
  border-radius: 8px;
  background: var(--white);
  transform: translateY(-140%);
}

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

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

.section {
  position: relative;
  padding: 132px 0;
}

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

.section-kicker,
.eyebrow {
  margin: 0;
  font-size: 11px;
  font-weight: 750;
  letter-spacing: 0.17em;
  line-height: 1.2;
  text-transform: uppercase;
}

.section-kicker {
  display: flex;
  align-items: center;
  gap: 14px;
  color: var(--muted);
}

.section-kicker::before {
  width: 28px;
  height: 1px;
  background: currentColor;
  content: "";
}

.section-kicker-light {
  color: rgba(255, 255, 255, 0.54);
}

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

h1,
h2,
h3,
h4,
p {
  margin-top: 0;
}

h1,
h2,
h3,
h4 {
  font-weight: 520;
  letter-spacing: -0.045em;
  line-height: 0.98;
}

h2 {
  margin-bottom: 0;
  font-size: clamp(49px, 6.5vw, 96px);
}

.site-header {
  position: fixed;
  z-index: 100;
  top: 16px;
  left: 50%;
  display: flex;
  width: min(1444px, calc(100vw - 32px));
  min-height: 62px;
  align-items: center;
  justify-content: space-between;
  padding: 0 18px 0 20px;
  border: 1px solid transparent;
  border-radius: 18px;
  transform: translateX(-50%);
  transition: background 220ms ease, border-color 220ms ease, box-shadow 220ms ease;
}

.site-header.is-scrolled {
  border-color: rgba(24, 26, 26, 0.09);
  background: rgba(250, 248, 243, 0.88);
  box-shadow: 0 12px 44px rgba(48, 42, 35, 0.09);
  backdrop-filter: blur(18px);
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 11px;
  font-size: 13px;
  font-weight: 820;
  letter-spacing: 0.12em;
}

.brand sup {
  position: relative;
  top: -5px;
  color: var(--coral-deep);
  font-size: 8px;
  letter-spacing: 0.05em;
}

.brand-grid {
  display: grid;
  width: 23px;
  grid-template-columns: repeat(3, 4px);
  gap: 3px;
}

.brand-grid i {
  width: 4px;
  height: 4px;
  border-radius: 50%;
  background: currentColor;
}

.brand-grid i:nth-child(5) {
  background: var(--coral);
}

.desktop-nav {
  display: flex;
  align-items: center;
  gap: 32px;
  color: #434441;
  font-size: 12px;
  font-weight: 650;
}

.desktop-nav a {
  position: relative;
}

.desktop-nav a::after {
  position: absolute;
  right: 0;
  bottom: -5px;
  left: 0;
  height: 1px;
  background: var(--ink);
  content: "";
  transform: scaleX(0);
  transform-origin: right;
  transition: transform 180ms ease;
}

.desktop-nav a:hover::after {
  transform: scaleX(1);
  transform-origin: left;
}

.menu-button,
.mobile-nav {
  display: none;
}

.hero {
  position: relative;
  min-height: 920px;
  overflow: hidden;
  background: #f7f4ee;
}

.hero::after {
  position: absolute;
  right: 0;
  bottom: 0;
  left: 0;
  z-index: 2;
  height: 124px;
  background: linear-gradient(0deg, var(--paper), transparent);
  content: "";
  pointer-events: none;
}

.hero-media {
  position: absolute;
  inset: 0;
}

.hero-media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center;
}

.hero-media-fade {
  position: absolute;
  inset: 0;
  background:
    linear-gradient(90deg, rgba(247, 244, 238, 0.99) 0%, rgba(247, 244, 238, 0.94) 25%, rgba(247, 244, 238, 0.13) 55%, rgba(247, 244, 238, 0) 78%),
    linear-gradient(180deg, rgba(247, 244, 238, 0.18), transparent 35%);
}

.hero-copy {
  position: relative;
  z-index: 4;
  padding-top: 176px;
}

.hero .eyebrow {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 32px;
}

.signal-dot {
  width: 7px;
  height: 7px;
  border: 2px solid var(--paper-light);
  border-radius: 50%;
  background: var(--coral);
  box-shadow: 0 0 0 1px var(--coral);
}

.hero h1 {
  max-width: 790px;
  margin-bottom: 31px;
  font-size: clamp(64px, 7.4vw, 112px);
}

.hero h1 em {
  color: var(--coral-deep);
  font-family: Georgia, "Times New Roman", serif;
  font-size: 0.91em;
  font-weight: 400;
  letter-spacing: -0.055em;
}

.hero-lead {
  max-width: 575px;
  margin-bottom: 34px;
  color: #555550;
  font-size: 19px;
  line-height: 1.55;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-bottom: 72px;
}

.button {
  display: inline-flex;
  min-height: 54px;
  align-items: center;
  justify-content: center;
  gap: 24px;
  padding: 0 24px;
  border: 1px solid var(--line);
  border-radius: 100px;
  font-size: 13px;
  font-weight: 720;
  transition: transform 160ms ease, background 160ms ease, color 160ms ease;
}

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

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

.button-primary span,
.button-dark span {
  font-size: 18px;
}

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

.button-ghost {
  background: rgba(255, 255, 255, 0.42);
  backdrop-filter: blur(10px);
}

.button-dark {
  flex: 0 0 auto;
  color: var(--white);
  background: var(--ink);
}

.hero-proof {
  display: grid;
  width: min(670px, 100%);
  grid-template-columns: repeat(3, 1fr);
  padding-top: 24px;
  border-top: 1px solid var(--line);
}

.hero-proof div {
  display: flex;
  flex-direction: column;
  gap: 5px;
}

.hero-proof div + div {
  padding-left: 24px;
  border-left: 1px solid var(--line);
}

.hero-proof strong {
  font-size: 22px;
  font-weight: 610;
  letter-spacing: -0.04em;
}

.hero-proof span {
  color: var(--muted);
  font-size: 11px;
}

.hero-callout {
  position: absolute;
  z-index: 5;
  display: flex;
  min-width: 175px;
  flex-direction: column;
  padding: 14px 18px;
  border: 1px solid rgba(255, 255, 255, 0.48);
  border-radius: 14px;
  background: rgba(248, 246, 241, 0.58);
  box-shadow: 0 15px 40px rgba(38, 31, 24, 0.08);
  backdrop-filter: blur(14px);
}

.hero-callout::before {
  position: absolute;
  width: 74px;
  height: 1px;
  background: rgba(24, 26, 26, 0.38);
  content: "";
}

.hero-callout::after {
  position: absolute;
  width: 7px;
  height: 7px;
  border: 2px solid rgba(255, 255, 255, 0.9);
  border-radius: 50%;
  background: var(--coral);
  box-shadow: 0 0 0 1px rgba(24, 26, 26, 0.35);
  content: "";
}

.hero-callout span {
  margin-bottom: 12px;
  color: var(--coral-deep);
  font-family: Georgia, serif;
  font-size: 12px;
  font-style: italic;
}

.hero-callout b {
  font-size: 12px;
}

.hero-callout small {
  margin-top: 3px;
  color: var(--muted);
  font-size: 10px;
}

.hero-callout-array {
  top: 390px;
  right: max(29vw, 360px);
}

.hero-callout-array::before {
  right: -72px;
  bottom: 22px;
  transform: rotate(12deg);
  transform-origin: left;
}

.hero-callout-array::after {
  right: -76px;
  bottom: 8px;
}

.hero-callout-controller {
  right: 39vw;
  bottom: 120px;
}

.hero-callout-controller::before {
  right: -58px;
  bottom: -18px;
  width: 65px;
  transform: rotate(38deg);
  transform-origin: left;
}

.hero-callout-controller::after {
  right: -62px;
  bottom: -45px;
}

.concept-note {
  position: absolute;
  right: 30px;
  bottom: 28px;
  z-index: 5;
  margin: 0;
  color: rgba(24, 26, 26, 0.55);
  font-size: 10px;
}

.principle-section {
  overflow: hidden;
}

.principle-section::before {
  position: absolute;
  top: 150px;
  right: -340px;
  width: 760px;
  height: 760px;
  border: 1px solid var(--line);
  border-radius: 50%;
  content: "";
}

.principle-head,
.architecture-intro,
.hardware-intro,
.bom-intro,
.roadmap-intro,
.modes-intro {
  display: grid;
  grid-template-columns: 1.5fr 0.7fr;
  gap: 80px;
  align-items: end;
  margin-top: 48px;
}

.principle-head p,
.architecture-intro p,
.hardware-intro p,
.bom-intro p,
.roadmap-intro p,
.modes-intro p {
  max-width: 480px;
  margin-bottom: 6px;
  color: var(--muted);
  font-size: 17px;
  line-height: 1.58;
}

.gesture-scale {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  margin-top: 94px;
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}

.gesture-card {
  min-height: 400px;
  padding: 30px 28px;
}

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

.gesture-card > span {
  display: block;
  margin-bottom: 13px;
  color: var(--coral-deep);
  font-family: Georgia, serif;
  font-size: 12px;
  font-style: italic;
}

.gesture-card h3 {
  margin-bottom: 12px;
  font-size: 25px;
}

.gesture-card p {
  max-width: 250px;
  margin: 0;
  color: var(--muted);
  font-size: 13px;
}

.gesture-visual {
  position: relative;
  display: grid;
  height: 190px;
  place-items: center;
  margin-bottom: 28px;
  overflow: hidden;
  border-radius: 18px;
  background:
    linear-gradient(rgba(24, 26, 26, 0.04) 1px, transparent 1px),
    linear-gradient(90deg, rgba(24, 26, 26, 0.04) 1px, transparent 1px),
    var(--paper-light);
  background-size: 18px 18px;
}

.gesture-visual i {
  width: 18px;
  height: 18px;
  border-radius: 50%;
  background: var(--coral);
  box-shadow: 0 7px 16px rgba(229, 83, 67, 0.32);
}

.gesture-finger .gesture-visual {
  grid-template-columns: repeat(3, 22px);
  align-content: center;
}

.gesture-finger .gesture-visual i:nth-child(1),
.gesture-finger .gesture-visual i:nth-child(3),
.gesture-finger .gesture-visual i:nth-child(4),
.gesture-finger .gesture-visual i:nth-child(6) {
  width: 12px;
  height: 12px;
  opacity: 0.55;
}

.gesture-palm .gesture-visual,
.gesture-wave .gesture-visual {
  display: grid;
  grid-template-columns: repeat(9, 8px);
  align-content: center;
  justify-content: center;
  gap: 7px;
}

.gesture-palm .gesture-visual i,
.gesture-wave .gesture-visual i {
  width: 8px;
  height: 8px;
  box-shadow: none;
}

.gesture-wave .gesture-visual i {
  background: var(--ink);
  animation: waveDot 1.7s ease-in-out infinite;
}

@keyframes waveDot {
  0%, 100% { opacity: 0.18; transform: scale(0.75); }
  45% { opacity: 1; transform: scale(1.25); background: var(--coral); }
}

.non-negotiables {
  display: grid;
  grid-template-columns: 0.48fr 1.2fr 1fr;
  gap: 50px;
  align-items: start;
  margin-top: 80px;
  padding: 55px;
  color: var(--white);
  border-radius: var(--radius);
  background: var(--ink);
}

.non-negotiables .eyebrow {
  color: rgba(255, 255, 255, 0.45);
}

.non-negotiables h3 {
  margin: 0;
  font-family: Georgia, serif;
  font-size: clamp(31px, 3vw, 48px);
  font-weight: 400;
  letter-spacing: -0.045em;
  line-height: 1.06;
}

.non-negotiables ul {
  display: grid;
  gap: 14px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.non-negotiables li {
  display: flex;
  align-items: center;
  gap: 13px;
  padding-bottom: 12px;
  border-bottom: 1px solid var(--line-light);
  font-size: 13px;
}

.non-negotiables li span {
  display: grid;
  width: 23px;
  height: 23px;
  place-items: center;
  border: 1px solid var(--line-light);
  border-radius: 50%;
  color: var(--coral);
  font-size: 11px;
}

.concepts-section {
  overflow: hidden;
  background: #e7e0d6;
}

.concepts-section::before {
  position: absolute;
  top: -280px;
  left: -190px;
  width: 720px;
  height: 720px;
  border: 1px solid rgba(24, 26, 26, 0.1);
  border-radius: 50%;
  content: "";
}

.concepts-topline {
  position: relative;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 30px;
}

.selection-status {
  display: flex;
  min-height: 34px;
  align-items: center;
  gap: 9px;
  padding: 0 13px;
  color: var(--muted);
  border: 1px solid var(--line);
  border-radius: 100px;
  background: rgba(255, 255, 255, 0.32);
  font-size: 9px;
  transition: color 180ms ease, border-color 180ms ease, background 180ms ease;
}

.selection-status i {
  width: 7px;
  height: 7px;
  border: 1px solid currentColor;
  border-radius: 50%;
}

.selection-status.has-selection {
  color: #3f5124;
  border-color: rgba(93, 120, 48, 0.28);
  background: rgba(185, 239, 106, 0.25);
}

.selection-status.has-selection i {
  border-color: var(--lime);
  background: #71993b;
  box-shadow: 0 0 0 4px rgba(113, 153, 59, 0.08);
}

.concepts-intro {
  position: relative;
  display: grid;
  grid-template-columns: 1.45fr 0.65fr;
  gap: 80px;
  align-items: end;
  margin-top: 48px;
}

.concepts-intro p {
  max-width: 480px;
  margin-bottom: 7px;
  color: var(--muted);
  font-size: 16px;
  line-height: 1.6;
}

.concept-stage {
  position: relative;
  display: grid;
  grid-template-columns: minmax(0, 1.42fr) minmax(340px, 0.58fr);
  min-height: 630px;
  margin-top: 70px;
  overflow: hidden;
  border-radius: 28px;
  background: var(--ink);
  box-shadow: 0 35px 100px rgba(45, 36, 28, 0.16);
}

.concept-stage-media {
  position: relative;
  min-width: 0;
  min-height: 630px;
  overflow: hidden;
  background: #d5d0ca;
}

.concept-stage-media > img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: opacity 180ms ease, transform 520ms cubic-bezier(.2,.7,.2,1);
}

.concept-stage-media.is-changing > img {
  opacity: 0.35;
  transform: scale(1.015);
}

.concept-stage-number {
  position: absolute;
  top: 22px;
  left: 22px;
  display: flex;
  align-items: baseline;
  gap: 5px;
  padding: 10px 13px;
  color: var(--white);
  border: 1px solid rgba(255,255,255,.24);
  border-radius: 10px;
  background: rgba(24,26,26,.6);
  backdrop-filter: blur(12px);
}

.concept-stage-number span {
  font-family: Georgia, serif;
  font-size: 20px;
  font-style: italic;
}

.concept-stage-number small {
  color: rgba(255,255,255,.48);
  font-size: 8px;
}

.concept-stage-actions {
  position: absolute;
  right: 22px;
  bottom: 22px;
  display: flex;
  gap: 6px;
}

.concept-stage-actions button {
  display: grid;
  width: 48px;
  height: 48px;
  place-items: center;
  color: var(--white);
  border: 1px solid rgba(255,255,255,.25);
  border-radius: 50%;
  background: rgba(24,26,26,.64);
  backdrop-filter: blur(12px);
  cursor: pointer;
  transition: color 160ms ease, background 160ms ease, transform 160ms ease;
}

.concept-stage-actions button:hover {
  color: var(--ink);
  background: var(--lime);
  transform: translateY(-2px);
}

.concept-render-note {
  position: absolute;
  bottom: 27px;
  left: 24px;
  max-width: calc(100% - 150px);
  padding: 8px 10px;
  color: rgba(255,255,255,.58);
  border-radius: 8px;
  background: rgba(24,26,26,.55);
  backdrop-filter: blur(10px);
  font-size: 8px;
}

.concept-stage-copy {
  display: flex;
  min-width: 0;
  flex-direction: column;
  padding: 48px 42px 38px;
  color: var(--white);
}

.concept-stage-copy .eyebrow {
  color: var(--lime);
}

.concept-stage-copy h3 {
  margin: 30px 0 8px;
  font-size: clamp(58px, 6vw, 86px);
  letter-spacing: -0.07em;
}

.concept-tagline {
  margin-bottom: 27px;
  color: var(--white);
  font-family: Georgia, "Times New Roman", serif;
  font-size: 20px;
  font-style: italic;
  line-height: 1.25;
}

.concept-description {
  margin-bottom: 27px;
  color: rgba(255,255,255,.49);
  font-size: 12px;
  line-height: 1.6;
}

.concept-facts {
  display: grid;
  margin: 0;
  border-top: 1px solid var(--line-light);
}

.concept-facts div {
  display: grid;
  grid-template-columns: 96px 1fr;
  gap: 10px;
  padding: 12px 0;
  border-bottom: 1px solid var(--line-light);
}

.concept-facts dt {
  color: rgba(255,255,255,.35);
  font-size: 8px;
  text-transform: uppercase;
  letter-spacing: .09em;
}

.concept-facts dd {
  margin: 0;
  font-size: 9px;
  text-align: right;
}

.concept-score {
  display: grid;
  gap: 10px;
  margin-top: 25px;
}

.concept-score > div {
  display: grid;
  grid-template-columns: 115px 1fr;
  gap: 12px;
  align-items: center;
}

.concept-score span {
  color: rgba(255,255,255,.42);
  font-size: 8px;
}

.concept-score i {
  height: 2px;
  overflow: hidden;
  background: rgba(255,255,255,.1);
}

.concept-score b {
  display: block;
  width: var(--score);
  height: 100%;
  background: var(--coral);
  transition: width 360ms ease;
}

.concept-select-button {
  display: flex;
  width: 100%;
  min-height: 56px;
  align-items: center;
  justify-content: space-between;
  margin-top: auto;
  padding: 0 20px;
  color: var(--ink);
  border: 0;
  border-radius: 13px;
  background: var(--lime);
  cursor: pointer;
  font-size: 11px;
  font-weight: 750;
  transition: transform 160ms ease, background 160ms ease;
}

.concept-select-button:hover {
  background: var(--white);
  transform: translateY(-2px);
}

.concept-select-button i {
  font-size: 20px;
  font-style: normal;
  font-weight: 400;
}

.concept-select-button.is-selected {
  color: var(--white);
  outline: 1px solid rgba(185,239,106,.45);
  outline-offset: -1px;
  background: rgba(185,239,106,.12);
}

.concept-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 12px;
  margin-top: 20px;
}

.concept-card {
  min-width: 0;
  padding: 0;
  overflow: hidden;
  color: var(--ink);
  border: 1px solid rgba(24,26,26,.13);
  border-radius: 17px;
  background: rgba(255,255,255,.27);
  cursor: pointer;
  text-align: left;
  transition: border-color 160ms ease, transform 160ms ease, background 160ms ease;
}

.concept-card:hover {
  border-color: rgba(24,26,26,.34);
  background: rgba(255,255,255,.45);
  transform: translateY(-3px);
}

.concept-card.is-active {
  border-color: var(--ink);
  background: rgba(255,255,255,.55);
}

.concept-card-image {
  position: relative;
  display: block;
  aspect-ratio: 3 / 2;
  overflow: hidden;
  background: #d5d0ca;
}

.concept-card-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 380ms ease;
}

.concept-card:hover img {
  transform: scale(1.035);
}

.concept-card-image i {
  position: absolute;
  top: 12px;
  right: 12px;
  display: none;
  width: 25px;
  height: 25px;
  border-radius: 50%;
  background: var(--lime);
}

.concept-card-image i::after {
  position: absolute;
  top: 6px;
  left: 9px;
  width: 6px;
  height: 9px;
  border-right: 1px solid var(--ink);
  border-bottom: 1px solid var(--ink);
  content: "";
  transform: rotate(42deg);
}

.concept-card.is-selected .concept-card-image i {
  display: block;
}

.concept-card-meta {
  display: flex;
  min-height: 112px;
  flex-direction: column;
  padding: 16px 17px;
}

.concept-card-meta small {
  color: var(--coral-deep);
  font-size: 7px;
  font-weight: 750;
  letter-spacing: .09em;
  text-transform: uppercase;
}

.concept-card-meta b {
  margin: 8px 0 3px;
  font-size: 22px;
  letter-spacing: -.04em;
}

.concept-card-meta em {
  color: var(--muted);
  font-size: 9px;
  font-style: normal;
}

.concept-criteria {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 20px;
  margin-top: 42px;
  padding-top: 25px;
  border-top: 1px solid var(--line);
}

.concept-criteria span {
  margin-right: auto;
  color: var(--muted);
  font-size: 8px;
  font-weight: 750;
  letter-spacing: .1em;
  text-transform: uppercase;
}

.concept-criteria p {
  margin: 0;
  font-size: 9px;
}

.concept-criteria i {
  width: 4px;
  height: 4px;
  border-radius: 50%;
  background: var(--coral);
}

.handheld-section {
  overflow: hidden;
  background: var(--paper-light);
}

.handheld-section::before {
  position: absolute;
  top: 70px;
  right: -190px;
  width: 620px;
  height: 620px;
  border: 1px solid rgba(24,26,26,.08);
  border-radius: 50%;
  content: "";
  pointer-events: none;
}

.handheld-intro {
  display: grid;
  grid-template-columns: 1.15fr .85fr;
  gap: 90px;
  align-items: end;
  margin-top: 70px;
}

.handheld-intro p {
  max-width: 530px;
  margin-bottom: 22px;
  color: var(--muted);
  font-size: 16px;
  line-height: 1.62;
}

.handheld-intro span {
  color: var(--coral-deep);
  font-size: 8px;
  font-weight: 750;
  letter-spacing: .11em;
  text-transform: uppercase;
}

.handheld-product {
  display: grid;
  grid-template-columns: minmax(0,1.52fr) minmax(360px,.48fr);
  min-height: 720px;
  margin-top: 72px;
  overflow: hidden;
  border-radius: 28px;
  background: #e9e1d8;
  box-shadow: 0 30px 80px rgba(51,43,34,.08);
}

.handheld-visual {
  position: relative;
  min-width: 0;
  min-height: 720px;
  margin: 0;
  overflow: hidden;
}

.handheld-visual::after {
  position: absolute;
  inset: 0;
  background: linear-gradient(90deg,rgba(255,250,244,.28),transparent 44%);
  content: "";
  pointer-events: none;
}

.handheld-visual > img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: 54% center;
}

.handheld-visual figcaption {
  position: absolute;
  z-index: 3;
  bottom: 22px;
  left: 22px;
  padding: 8px 10px;
  color: rgba(255,255,255,.7);
  border-radius: 8px;
  background: rgba(24,26,26,.64);
  backdrop-filter: blur(10px);
  font-size: 8px;
}

.handheld-callout {
  position: absolute;
  z-index: 3;
  left: 25px;
  display: grid;
  grid-template-columns: 28px auto;
  align-items: center;
  gap: 9px;
  min-width: 178px;
  padding: 7px 11px 7px 7px;
  border: 1px solid rgba(24,26,26,.12);
  border-radius: 100px;
  background: rgba(251,250,246,.82);
  box-shadow: 0 8px 24px rgba(48,42,35,.08);
  backdrop-filter: blur(11px);
  font-size: 9px;
}

.handheld-callout::after {
  position: absolute;
  top: 50%;
  left: 100%;
  width: 62px;
  height: 1px;
  background: rgba(24,26,26,.35);
  content: "";
}

.handheld-callout i {
  display: grid;
  width: 28px;
  height: 28px;
  place-items: center;
  color: var(--white);
  border-radius: 50%;
  background: var(--coral-deep);
  font-size: 8px;
  font-style: normal;
}

.handheld-callout b {
  font-size: 9px;
}

.callout-wheel { top: 21%; }
.callout-screen { top: 38%; }
.callout-squeeze { top: 55%; }

.handheld-console {
  display: flex;
  min-width: 0;
  flex-direction: column;
  padding: 36px 31px 30px;
  color: var(--white);
  background: var(--ink);
}

.handheld-console-top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-bottom: 25px;
  color: rgba(255,255,255,.42);
  border-bottom: 1px solid var(--line-light);
  font-size: 8px;
  font-weight: 750;
  letter-spacing: .1em;
}

.handheld-console-top i {
  display: flex;
  align-items: center;
  gap: 7px;
  color: var(--lime);
  font-style: normal;
}

.handheld-console-top i::before {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: currentColor;
  box-shadow: 0 0 0 3px rgba(185,239,106,.12);
  content: "";
}

.handheld-screen {
  display: grid;
  grid-template-columns: 1fr auto;
  margin-top: 27px;
  padding: 23px;
  border: 1px solid rgba(255,255,255,.12);
  border-radius: 18px;
  background: #242727;
  box-shadow: inset 0 0 30px rgba(0,0,0,.2);
}

.handheld-screen small {
  color: rgba(255,255,255,.35);
  font-size: 7px;
  letter-spacing: .1em;
}

.handheld-screen > div:first-child {
  display: flex;
  flex-direction: column;
  gap: 7px;
}

.handheld-screen strong {
  font-size: 15px;
}

.handheld-screen > output {
  color: var(--lime);
  font-size: 45px;
  font-weight: 520;
  letter-spacing: -.06em;
  line-height: .85;
}

.handheld-screen > output small {
  margin-left: 2px;
  color: inherit;
  font-size: 12px;
}

.handheld-level {
  grid-column: 1/-1;
  height: 4px;
  margin-top: 26px;
  overflow: hidden;
  border-radius: 10px;
  background: rgba(255,255,255,.09);
}

.handheld-level i {
  display: block;
  width: 62%;
  height: 100%;
  background: linear-gradient(90deg,var(--coral),var(--lime));
  transition: width 180ms ease;
}

.handheld-screen p {
  grid-column: 1/-1;
  margin: 17px 0 0;
  color: rgba(255,255,255,.39);
  font-size: 9px;
  line-height: 1.5;
}

.handheld-modes {
  display: grid;
  grid-template-columns: repeat(3,1fr);
  gap: 5px;
  margin-top: 20px;
  padding: 4px;
  border: 1px solid var(--line-light);
  border-radius: 12px;
}

.handheld-modes button {
  min-height: 39px;
  padding: 0 6px;
  color: rgba(255,255,255,.42);
  border: 0;
  border-radius: 8px;
  background: transparent;
  cursor: pointer;
  font-size: 8px;
}

.handheld-modes button.is-active {
  color: var(--ink);
  background: var(--white);
}

.handheld-intensity {
  display: grid;
  gap: 14px;
  margin-top: 27px;
}

.handheld-intensity > span {
  display: flex;
  justify-content: space-between;
  color: rgba(255,255,255,.48);
  font-size: 9px;
}

.handheld-intensity b {
  color: var(--white);
  font-weight: 650;
}

.handheld-intensity input {
  width: 100%;
  accent-color: var(--coral);
  cursor: ew-resize;
}

.handheld-squeeze {
  display: flex;
  min-height: 76px;
  align-items: center;
  gap: 14px;
  margin-top: auto;
  padding: 0 18px;
  color: var(--ink);
  border: 0;
  border-radius: 15px;
  background: var(--lime);
  cursor: pointer;
  text-align: left;
  transition: transform 120ms ease, background 120ms ease;
  touch-action: none;
}

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

.handheld-squeeze.is-squeezed {
  color: var(--white);
  background: var(--coral-deep);
  transform: scale(.985);
}

.handheld-squeeze > i {
  position: relative;
  width: 34px;
  height: 34px;
  flex: 0 0 auto;
  border: 1px solid rgba(24,26,26,.25);
  border-radius: 50%;
  background: rgba(255,255,255,.35);
}

.handheld-squeeze > i::after {
  position: absolute;
  inset: 10px;
  border: 2px solid currentColor;
  border-radius: 50%;
  content: "";
}

.handheld-squeeze span {
  display: flex;
  flex-direction: column;
}

.handheld-squeeze b {
  font-size: 10px;
}

.handheld-squeeze small {
  margin-top: 4px;
  opacity: .62;
  font-size: 8px;
}

.handheld-specs {
  display: grid;
  grid-template-columns: repeat(4,1fr);
  margin-top: 22px;
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}

.handheld-specs article {
  min-height: 220px;
  padding: 27px 28px 23px;
}

.handheld-specs article + article {
  border-left: 1px solid var(--line);
}

.handheld-specs span {
  color: var(--coral-deep);
  font-family: Georgia,"Times New Roman",serif;
  font-size: 12px;
  font-style: italic;
}

.handheld-specs b {
  display: block;
  margin: 50px 0 12px;
  font-size: 15px;
}

.handheld-specs p {
  margin: 0;
  color: var(--muted);
  font-size: 10px;
  line-height: 1.55;
}

.handheld-principles {
  display: grid;
  grid-template-columns: repeat(3,1fr);
  gap: 35px;
  margin-top: 55px;
}

.handheld-principles p {
  display: grid;
  grid-template-columns: 110px 1fr;
  gap: 15px;
  margin: 0;
  font-size: 9px;
}

.handheld-principles b {
  text-transform: uppercase;
  letter-spacing: .08em;
}

.handheld-principles span {
  color: var(--muted);
  line-height: 1.5;
}

.simulator-section {
  overflow: hidden;
}

.simulator-section::before {
  position: absolute;
  top: -300px;
  left: 50%;
  width: 1000px;
  height: 700px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(255, 115, 95, 0.13), transparent 68%);
  content: "";
  transform: translateX(-50%);
}

.simulator-heading {
  display: flex;
  align-items: end;
  justify-content: space-between;
  gap: 60px;
  margin-top: 48px;
}

.simulator-heading p {
  max-width: 630px;
  margin: 28px 0 0;
  color: rgba(255, 255, 255, 0.56);
  font-size: 17px;
  line-height: 1.58;
}

.latency-readout {
  display: flex;
  width: 230px;
  flex: 0 0 auto;
  flex-direction: column;
  padding: 20px 0 4px 26px;
  border-left: 1px solid var(--line-light);
}

.latency-readout span,
.latency-readout small {
  color: rgba(255, 255, 255, 0.43);
  font-size: 10px;
}

.latency-readout strong {
  margin: 4px 0;
  font-size: 35px;
  font-weight: 510;
  letter-spacing: -0.05em;
}

.latency-readout i {
  color: var(--lime);
  font-style: normal;
}

.simulator-shell {
  margin-top: 64px;
  overflow: hidden;
  border: 1px solid var(--line-light);
  border-radius: 28px;
  background: #202323;
  box-shadow: 0 40px 100px rgba(0, 0, 0, 0.28);
}

.simulator-toolbar {
  display: flex;
  min-height: 84px;
  align-items: center;
  gap: 42px;
  padding: 16px 22px;
  border-bottom: 1px solid var(--line-light);
}

.mode-switch {
  display: flex;
  gap: 5px;
  padding: 4px;
  border-radius: 12px;
  background: rgba(255, 255, 255, 0.055);
}

.mode-switch button {
  min-height: 38px;
  padding: 0 16px;
  color: rgba(255, 255, 255, 0.48);
  border: 0;
  border-radius: 9px;
  background: transparent;
  cursor: pointer;
  font-size: 11px;
}

.mode-switch button.is-active {
  color: var(--ink);
  background: var(--paper-light);
}

.intensity-control {
  display: flex;
  width: min(310px, 30vw);
  flex-direction: column;
  gap: 8px;
}

.intensity-control > span {
  display: flex;
  justify-content: space-between;
  color: rgba(255, 255, 255, 0.5);
  font-size: 10px;
}

.intensity-control output {
  color: var(--white);
}

.intensity-control input {
  width: 100%;
  height: 3px;
  appearance: none;
  border-radius: 2px;
  outline: none;
  background: linear-gradient(90deg, var(--coral) 0 62%, rgba(255,255,255,.13) 62% 100%);
}

.intensity-control input::-webkit-slider-thumb {
  width: 14px;
  height: 14px;
  appearance: none;
  border: 3px solid var(--ink-soft);
  border-radius: 50%;
  background: var(--coral);
  box-shadow: 0 0 0 1px rgba(255,255,255,.4);
  cursor: grab;
}

.sim-status {
  display: flex;
  align-items: center;
  gap: 9px;
  margin-left: auto;
  color: rgba(255, 255, 255, 0.6);
  font-size: 10px;
}

.sim-status i {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--lime);
  box-shadow: 0 0 0 4px rgba(185, 239, 106, 0.08);
  animation: statusPulse 1.8s ease-in-out infinite;
}

@keyframes statusPulse {
  50% { box-shadow: 0 0 0 8px rgba(185, 239, 106, 0.02); }
}

.simulator-stage {
  display: grid;
  grid-template-columns: minmax(260px, 0.82fr) 120px minmax(440px, 1.55fr);
  min-height: 520px;
}

.controller-panel,
.feet-panel {
  position: relative;
  min-width: 0;
  padding: 25px;
}

.controller-panel {
  border-right: 1px solid var(--line-light);
}

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

.panel-label {
  display: flex;
  align-items: center;
  justify-content: space-between;
  color: rgba(255, 255, 255, 0.38);
  font-size: 9px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.panel-label b {
  color: rgba(255, 255, 255, 0.76);
  font-family: ui-monospace, SFMono-Regular, Menlo, monospace;
  font-size: 10px;
}

.controller-canvas-wrap {
  position: relative;
  height: 395px;
  margin-top: 17px;
}

.controller-canvas-wrap canvas,
.feet-panel canvas {
  width: 100%;
  height: 100%;
  touch-action: none;
}

.controller-hint {
  position: absolute;
  top: 50%;
  left: 50%;
  padding: 9px 12px;
  color: rgba(255, 255, 255, 0.6);
  border: 1px solid var(--line-light);
  border-radius: 100px;
  background: rgba(24, 26, 26, 0.72);
  font-size: 9px;
  pointer-events: none;
  transform: translate(-50%, -50%);
  transition: opacity 180ms ease;
}

.controller-hint.is-hidden {
  opacity: 0;
}

.feet-panel canvas {
  height: 415px;
  margin-top: 10px;
}

.controller-meta,
.feet-meta {
  display: flex;
  align-items: center;
  justify-content: space-between;
  color: rgba(255, 255, 255, 0.4);
  font-size: 9px;
}

.feet-meta b {
  color: var(--white);
  font-weight: 580;
}

.meta-dot {
  display: inline-block;
  width: 6px;
  height: 6px;
  margin-right: 5px;
  border-radius: 50%;
}

.meta-dot-coral { background: var(--coral); }
.meta-dot-lime { background: var(--lime); }

.transform-column {
  display: flex;
  align-items: center;
  justify-content: center;
  flex-direction: column;
  gap: 17px;
  color: rgba(255, 255, 255, 0.35);
  font-size: 8px;
  letter-spacing: 0.1em;
  text-align: center;
  text-transform: uppercase;
}

.transform-column b {
  display: grid;
  width: 52px;
  height: 52px;
  place-items: center;
  color: var(--ink);
  border-radius: 50%;
  background: var(--lime);
  box-shadow: 0 0 40px rgba(185, 239, 106, 0.11);
}

.transform-column small {
  max-width: 80px;
  font-family: ui-monospace, SFMono-Regular, Menlo, monospace;
  font-size: 7px;
  line-height: 1.7;
}

.signal-line {
  position: relative;
  display: flex;
  width: 88px;
  justify-content: space-between;
}

.signal-line::before {
  position: absolute;
  top: 3px;
  right: 0;
  left: 0;
  height: 1px;
  background: rgba(255, 255, 255, 0.14);
  content: "";
}

.signal-line i {
  position: relative;
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--coral);
  animation: signalTravel 1.3s linear infinite;
}

.signal-line i:nth-child(2) { animation-delay: -0.26s; }
.signal-line i:nth-child(3) { animation-delay: -0.52s; }
.signal-line i:nth-child(4) { animation-delay: -0.78s; }
.signal-line i:nth-child(5) { animation-delay: -1.04s; }

@keyframes signalTravel {
  0%, 65%, 100% { opacity: 0.13; }
  32% { opacity: 1; box-shadow: 0 0 10px var(--coral); }
}

.record-deck {
  display: grid;
  grid-template-columns: 150px 1fr 130px 70px;
  gap: 18px;
  align-items: center;
  min-height: 72px;
  padding: 12px 22px;
  border-top: 1px solid var(--line-light);
}

.record-deck[hidden] { display: none; }

.record-button,
.play-button {
  min-height: 38px;
  color: var(--white);
  border: 1px solid var(--line-light);
  border-radius: 9px;
  background: rgba(255,255,255,.04);
  cursor: pointer;
  font-size: 10px;
}

.record-button {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
}

.record-button i {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--coral);
}

.record-button.is-recording i { animation: recordPulse 900ms ease-in-out infinite; }

@keyframes recordPulse { 50% { box-shadow: 0 0 0 6px rgba(255,115,95,.08); } }

.play-button:disabled { opacity: .3; cursor: not-allowed; }

.record-timeline {
  height: 3px;
  overflow: hidden;
  border-radius: 2px;
  background: rgba(255,255,255,.1);
}

.record-timeline i {
  display: block;
  width: 0;
  height: 100%;
  background: var(--coral);
}

.record-deck > span {
  color: rgba(255,255,255,.55);
  font-family: ui-monospace, SFMono-Regular, Menlo, monospace;
  font-size: 10px;
}

.simulator-rules {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  margin-top: 26px;
  border-top: 1px solid var(--line-light);
}

.simulator-rules div {
  position: relative;
  display: flex;
  min-height: 85px;
  flex-direction: column;
  justify-content: center;
  padding: 18px 18px 18px 48px;
}

.simulator-rules div + div { border-left: 1px solid var(--line-light); }
.simulator-rules b { position: absolute; top: 24px; left: 12px; color: var(--coral); font-family: Georgia, serif; font-size: 11px; font-style: italic; }
.simulator-rules span { color: rgba(255,255,255,.42); font-size: 9px; text-transform: uppercase; letter-spacing: .12em; }
.simulator-rules strong { margin-top: 5px; font-size: 14px; font-weight: 550; }
.safety-caption { margin: 10px 0 0; color: rgba(255,255,255,.32); font-size: 9px; }

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

.architecture-flow {
  display: grid;
  grid-template-columns: 1fr 160px 1fr 160px 1fr;
  align-items: center;
  margin-top: 88px;
}

.flow-node {
  position: relative;
  display: flex;
  min-height: 335px;
  align-items: center;
  flex-direction: column;
  padding: 34px;
  border: 1px solid var(--line);
  border-radius: 24px;
  background: var(--white);
}

.flow-node p { margin: 26px 0 7px; font-size: 18px; font-weight: 620; letter-spacing: -.03em; }
.flow-node strong { margin-bottom: 8px; font-size: 11px; letter-spacing: .04em; }
.flow-node small { max-width: 200px; color: var(--muted); font-size: 10px; text-align: center; }
.flow-index { align-self: flex-start; color: var(--coral-deep); font-family: Georgia, serif; font-size: 12px; font-style: italic; }

.flow-icon,
.kernel-rings,
.module-grid-icon {
  position: relative;
  display: grid;
  width: 124px;
  height: 124px;
  place-items: center;
  margin-top: 23px;
  border-radius: 50%;
  background: var(--paper);
}

.controller-icon {
  border-radius: 52% 52% 45% 45% / 39% 39% 61% 61%;
  transform: rotate(-12deg);
}

.controller-icon i {
  position: absolute;
  width: 17px;
  height: 17px;
  border-radius: 50%;
  background: var(--coral);
}

.controller-icon i:nth-child(1) { top: 27px; left: 44px; box-shadow: 28px 14px 0 rgba(255,115,95,.5); }
.controller-icon i:nth-child(2) { top: 57px; left: 30px; width: 26px; height: 26px; opacity: .7; }
.controller-icon i:nth-child(3) { right: 25px; bottom: 21px; width: 31px; height: 31px; opacity: .38; }

.flow-core { color: var(--white); border-color: var(--ink); background: var(--ink); }
.flow-core .flow-index { color: var(--lime); }
.flow-core small { color: rgba(255,255,255,.45); }
.flow-core .kernel-rings { background: rgba(255,255,255,.03); }
.kernel-rings i { position: absolute; border: 1px solid rgba(185,239,106,.7); border-radius: 50%; animation: kernelPulse 2.8s ease-in-out infinite; }
.kernel-rings i:nth-child(1) { width: 24px; height: 24px; background: var(--lime); }
.kernel-rings i:nth-child(2) { width: 60px; height: 60px; animation-delay: -.8s; }
.kernel-rings i:nth-child(3) { width: 100px; height: 100px; animation-delay: -1.6s; }
@keyframes kernelPulse { 50% { transform: scale(.9); opacity: .35; } }

.module-grid-icon {
  grid-template-columns: repeat(4, 12px);
  align-content: center;
  gap: 8px;
}
.module-grid-icon i { width: 12px; height: 12px; border-radius: 50%; background: var(--ink); }
.module-grid-icon i:nth-child(6), .module-grid-icon i:nth-child(7), .module-grid-icon i:nth-child(10), .module-grid-icon i:nth-child(11) { background: var(--coral); }

.flow-link {
  display: flex;
  flex-direction: column;
  gap: 12px;
  align-items: center;
  color: var(--muted);
  font-size: 8px;
  letter-spacing: .1em;
  text-transform: uppercase;
}

.flow-link i {
  position: relative;
  display: block;
  width: 100%;
  height: 1px;
  background: var(--line);
}

.flow-link i::before,
.flow-link i::after { position: absolute; top: -3px; width: 7px; height: 7px; border-radius: 50%; background: var(--coral); content: ""; }
.flow-link i::before { left: 0; }
.flow-link i::after { right: 0; background: var(--ink); }

.software-layers {
  display: grid;
  grid-template-columns: .8fr 1.2fr;
  gap: 100px;
  margin-top: 110px;
  padding-top: 64px;
  border-top: 1px solid var(--line);
}
.software-heading h3 { margin: 24px 0 0; font-family: Georgia, serif; font-size: clamp(34px, 4vw, 54px); font-weight: 400; line-height: 1.08; }
.layer-list { display: grid; }
.layer-list article { display: grid; grid-template-columns: 35px 1fr 80px; gap: 15px; align-items: center; min-height: 86px; border-bottom: 1px solid var(--line); }
.layer-list article > span { color: var(--coral-deep); font-family: Georgia, serif; font-size: 11px; font-style: italic; }
.layer-list div { display: flex; flex-direction: column; }
.layer-list b { font-size: 14px; }
.layer-list small { margin-top: 3px; color: var(--muted); font-size: 10px; }
.layer-list code { color: var(--muted); font-size: 9px; text-align: right; }
.diagram-download { display: flex; align-items: center; justify-content: space-between; margin-top: 70px; padding: 24px 0; border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); font-size: 13px; font-weight: 650; }
.diagram-download b { font-size: 22px; transition: transform 160ms ease; }
.diagram-download:hover b { transform: translate(4px,-4px); }

.hardware-section { background: var(--paper); }
.cartridge-board { display: grid; grid-template-columns: 1.3fr .7fr; margin-top: 82px; overflow: hidden; border: 1px solid var(--line); border-radius: 28px; background: var(--paper-light); }
.drawing-pane { position: relative; min-height: 650px; padding: 40px; border-right: 1px solid var(--line); background: #ece7de; }
.drawing-pane > img { width: 100%; height: 520px; object-fit: contain; }
.drawing-stamp { position: absolute; right: 25px; bottom: 20px; left: 25px; display: grid; grid-template-columns: .7fr 1fr 1fr; padding-top: 12px; border-top: 1px solid rgba(24,26,26,.35); font-family: ui-monospace, SFMono-Regular, Menlo, monospace; font-size: 8px; }
.drawing-stamp b { text-align: center; }
.drawing-stamp small { text-align: right; font-size: 8px; }
.cartridge-specs { padding: 58px 46px; }
.cartridge-specs h3 { margin: 20px 0 38px; font-size: 36px; line-height: 1.05; }
.cartridge-specs ol { margin: 0; padding: 0; list-style: none; }
.cartridge-specs li { display: grid; grid-template-columns: 34px 1fr; gap: 12px; padding: 16px 0; border-bottom: 1px solid var(--line); }
.cartridge-specs li > span { color: var(--coral-deep); font-family: Georgia, serif; font-size: 11px; font-style: italic; }
.cartridge-specs li div { display: flex; flex-direction: column; }
.cartridge-specs li b { font-size: 13px; }
.cartridge-specs li small { margin-top: 3px; color: var(--muted); font-size: 9px; }
.cartridge-specs > a { display: flex; justify-content: space-between; margin-top: 32px; padding: 15px 0; border-bottom: 1px solid var(--ink); font-size: 11px; font-weight: 700; }

.spec-ribbon { display: grid; grid-template-columns: repeat(5, 1fr); margin: 24px 0 100px; border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); }
.spec-ribbon div { display: flex; min-height: 110px; flex-direction: column; justify-content: center; padding: 20px 24px; }
.spec-ribbon div + div { border-left: 1px solid var(--line); }
.spec-ribbon span,.spec-ribbon small { color: var(--muted); font-size: 9px; text-transform: uppercase; letter-spacing: .12em; }
.spec-ribbon strong { margin: 4px 0 2px; font-size: 23px; font-weight: 550; letter-spacing: -.04em; }

.module-feature { display: grid; grid-template-columns: 1.16fr .84fr; gap: 75px; align-items: center; }
.module-photo { position: relative; margin: 0; overflow: hidden; border-radius: 24px; background: #ddd; }
.module-photo img { width: 100%; aspect-ratio: 1.5; object-fit: cover; }
.module-photo figcaption { position: absolute; right: 14px; bottom: 14px; display: flex; gap: 9px; padding: 9px 12px; border-radius: 8px; background: rgba(20,22,22,.78); color: rgba(255,255,255,.67); backdrop-filter: blur(10px); font-size: 8px; }
.module-photo figcaption span { color: var(--lime); font-weight: 700; text-transform: uppercase; }
.module-copy h3 { margin: 21px 0 28px; font-size: clamp(42px, 4.4vw, 64px); }
.module-copy > p:not(.eyebrow) { max-width: 500px; color: var(--muted); font-size: 15px; line-height: 1.6; }
.check-list { display: grid; grid-template-columns: repeat(2, 1fr); gap: 10px 22px; margin: 30px 0 36px; padding: 0; list-style: none; }
.check-list li { position: relative; padding-left: 16px; font-size: 10px; }
.check-list li::before { position: absolute; top: 5px; left: 0; width: 6px; height: 6px; border-radius: 50%; background: var(--coral); content: ""; }
.text-link { display: inline-flex; gap: 24px; padding-bottom: 7px; border-bottom: 1px solid var(--ink); font-size: 11px; font-weight: 700; }

.drive-decision { margin-top: 120px; overflow: hidden; border: 1px solid var(--line); border-radius: 28px; background: var(--paper-light); }
.decision-top { display: flex; align-items: end; justify-content: space-between; gap: 30px; padding: 50px 50px 36px; border-bottom: 1px solid var(--line); }
.decision-top h3 { margin: 19px 0 0; font-size: clamp(38px, 4.2vw, 59px); }
.drive-tabs { display: flex; gap: 6px; padding: 5px; border-radius: 12px; background: var(--paper-deep); }
.drive-tabs button { min-height: 41px; padding: 0 17px; border: 0; border-radius: 9px; background: transparent; color: var(--muted); cursor: pointer; font-size: 10px; }
.drive-tabs button[aria-selected="true"] { color: var(--white); background: var(--ink); }
.drive-content { display: grid; grid-template-columns: .8fr 1.2fr; min-height: 370px; }
.drive-illustration { position: relative; min-height: 350px; border-right: 1px solid var(--line); background: #eae4db; }
.drive-illustration .drive-cylinder { position: absolute; top: 50%; left: 50%; width: 92px; height: 210px; border: 2px solid var(--ink); border-radius: 42px 42px 20px 20px; transform: translate(-50%,-42%); }
.drive-illustration .drive-cylinder::before { position: absolute; top: -62px; left: 50%; width: 22px; height: 75px; border: 2px solid var(--ink); border-bottom: 0; background: var(--paper-light); content: ""; transform: translateX(-50%); }
.drive-illustration .drive-cylinder::after { position: absolute; top: -78px; left: 50%; width: 52px; height: 24px; border-radius: 50%; background: var(--coral); content: ""; transform: translateX(-50%); }
.drive-illustration .drive-spring { position: absolute; top: 62px; left: 50%; width: 47px; height: 82px; border: 2px dashed var(--coral-deep); transform: translateX(-50%); }
.drive-illustration .drive-valve { position: absolute; bottom: 35px; left: calc(50% + 70px); width: 75px; height: 55px; border: 2px solid var(--ink); border-radius: 8px; }
.drive-illustration .drive-line { position: absolute; right: 50%; bottom: 60px; width: 90px; height: 2px; background: var(--ink); transform: translateX(2px); }
.drive-illustration.is-electric .drive-cylinder {
  width: 92px;
  height: 150px;
  border-radius: 12px;
  background: repeating-linear-gradient(90deg, transparent 0 9px, rgba(24,26,26,.12) 9px 11px);
}
.drive-illustration.is-electric .drive-cylinder::before {
  top: -86px;
  width: 16px;
  height: 102px;
  border: 2px solid var(--ink);
  background: repeating-linear-gradient(0deg, var(--paper-light) 0 5px, var(--ink) 5px 6px);
}
.drive-illustration.is-electric .drive-cylinder::after {
  top: -99px;
  width: 47px;
  height: 22px;
}
.drive-illustration.is-electric .drive-spring { top: 20px; height: 47px; }
.drive-illustration.is-electric .drive-valve {
  right: calc(50% - 155px);
  bottom: 49px;
  left: auto;
  width: 96px;
  height: 66px;
  border-radius: 4px;
  background:
    radial-gradient(circle at 18px 18px, var(--coral) 0 4px, transparent 5px),
    repeating-linear-gradient(90deg, transparent 0 7px, rgba(24,26,26,.14) 7px 8px);
}
.drive-illustration.is-electric .drive-line { right: calc(50% - 5px); bottom: 81px; width: 106px; }
.drive-summary { display: flex; flex-direction: column; justify-content: center; padding: 55px 70px; }
.decision-badge { align-self: flex-start; padding: 7px 10px; color: #3d4f22; border-radius: 100px; background: var(--lime); font-size: 8px; font-weight: 800; letter-spacing: .08em; text-transform: uppercase; }
.drive-summary h4 { margin: 21px 0 17px; font-size: 36px; }
.drive-summary > p { max-width: 620px; margin-bottom: 28px; color: var(--muted); font-size: 14px; line-height: 1.6; }
.pros-cons { display: grid; grid-template-columns: repeat(2,1fr); gap: 28px; }
.pros-cons div { display: flex; flex-direction: column; padding-top: 14px; border-top: 1px solid var(--line); }
.pros-cons b { margin-bottom: 4px; font-size: 9px; text-transform: uppercase; letter-spacing: .1em; }
.pros-cons span { color: var(--muted); font-size: 10px; }
.comparison-scroll { overflow-x: auto; border-top: 1px solid var(--line); }
.comparison-table,.bom-table { width: 100%; border-collapse: collapse; }
.comparison-table th,.comparison-table td { padding: 17px 24px; border-bottom: 1px solid var(--line); text-align: left; font-size: 10px; white-space: nowrap; }
.comparison-table th { color: var(--muted); font-size: 8px; text-transform: uppercase; letter-spacing: .1em; }
.comparison-table tr:last-child td { border-bottom: 0; }
.score { padding: 5px 8px; border-radius: 100px; }
.score.good { color: #4a5a29; background: rgba(185,239,106,.35); }
.score.risk { color: #9c4136; background: rgba(255,115,95,.17); }

.modes-section { color: var(--white); background: #2b2e2d; }
.modes-intro p { color: rgba(255,255,255,.48); }
.mode-cards { display: grid; grid-template-columns: repeat(3, 1fr); margin-top: 75px; border-top: 1px solid var(--line-light); border-bottom: 1px solid var(--line-light); }
.mode-cards article { position: relative; min-height: 460px; padding: 30px; }
.mode-cards article + article { border-left: 1px solid var(--line-light); }
.mode-number { color: var(--coral); font-family: Georgia, serif; font-size: 12px; font-style: italic; }
.mode-cards h3 { margin: 28px 0 14px; font-size: 34px; }
.mode-cards p { max-width: 340px; color: rgba(255,255,255,.51); font-size: 13px; line-height: 1.55; }
.mode-cards small { position: absolute; right: 30px; bottom: 26px; left: 30px; padding-top: 13px; border-top: 1px solid var(--line-light); color: rgba(255,255,255,.34); font-family: ui-monospace, SFMono-Regular, Menlo, monospace; font-size: 8px; }
.mode-animation { display: grid; height: 200px; place-content: center; margin-top: 20px; border-radius: 18px; background: #242726; }
.mode-animation-wave,.mode-animation-live { grid-template-columns: repeat(10, 7px); gap: 8px; }
.mode-animation-wave i,.mode-animation-live i { width: 7px; height: 7px; border-radius: 50%; background: rgba(255,255,255,.17); }
.mode-animation-wave i { animation: modeWave 2.2s ease-in-out infinite; animation-delay: calc(var(--i) * -55ms); }
@keyframes modeWave { 45% { background: var(--coral); transform: scale(1.35); } }
.mode-animation-live i.is-hot { background: var(--coral); box-shadow: 0 0 13px rgba(255,115,95,.45); }
.mode-animation-record { display: flex; align-items: center; gap: 5px; padding: 0 35px; }
.mode-animation-record::before { position: absolute; width: calc(100% - 120px); height: 1px; background: rgba(255,255,255,.12); content: ""; }
.mode-animation-record i { position: relative; width: 8px; border-radius: 4px; background: var(--coral); animation: bars 1.3s ease-in-out infinite; }
.mode-animation-record i:nth-child(1) { height: 18px; }
.mode-animation-record i:nth-child(2) { height: 52px; animation-delay: -.2s; }
.mode-animation-record i:nth-child(3) { height: 85px; animation-delay: -.4s; }
.mode-animation-record i:nth-child(4) { height: 44px; animation-delay: -.6s; }
.mode-animation-record i:nth-child(5) { height: 72px; animation-delay: -.8s; }
.mode-animation-record i:nth-child(6) { height: 28px; animation-delay: -1s; }
@keyframes bars { 50% { transform: scaleY(.45); opacity: .4; } }

.bom-section { background: var(--paper-light); }
.bom-table-wrap { margin-top: 78px; overflow-x: auto; border-top: 1px solid var(--ink); }
.bom-table { min-width: 900px; }
.bom-table th,.bom-table td { padding: 21px 20px; border-bottom: 1px solid var(--line); text-align: left; vertical-align: middle; font-size: 11px; }
.bom-table th { color: var(--muted); font-size: 8px; text-transform: uppercase; letter-spacing: .1em; }
.bom-table td:first-child { font-weight: 650; }
.bom-table td:first-child > span { margin-right: 11px; color: var(--coral-deep); font-family: Georgia,serif; font-size: 10px; font-style: italic; }
.bom-table a { display: inline-block; border-bottom: 1px solid rgba(24,26,26,.4); font-weight: 700; }
.bom-table small { display: block; margin-top: 4px; color: var(--muted); font-size: 8px; }
.status { display: inline-block; width: 7px; height: 7px; margin-right: 7px; border-radius: 50%; }
.status.verified { background: #7ca943; }
.status.prototype { background: var(--coral); }
.status.research { border: 1px solid var(--ink); }
.status.custom { background: #ddb34e; }
.bom-footer { display: flex; align-items: center; justify-content: space-between; gap: 50px; margin-top: 30px; }
.bom-footer p { max-width: 730px; margin: 0; color: var(--muted); font-size: 10px; line-height: 1.55; }

.roadmap-section { overflow: hidden; }
.roadmap-intro p { color: rgba(255,255,255,.47); }
.roadmap-track { display: grid; grid-template-columns: repeat(6, minmax(230px,1fr)); gap: 12px; margin-top: 76px; padding-bottom: 22px; overflow-x: auto; scrollbar-color: var(--coral) rgba(255,255,255,.06); }
.roadmap-card { position: relative; min-height: 360px; padding: 24px; border: 1px solid var(--line-light); border-radius: 18px; background: rgba(255,255,255,.025); }
.roadmap-card::before { position: absolute; top: -1px; left: 20px; width: 0; height: 2px; background: var(--coral); content: ""; transition: width .4s ease; }
.roadmap-card:hover::before,.roadmap-card.is-current::before { width: 80px; }
.roadmap-card.is-current { color: var(--ink); border-color: var(--coral); background: var(--coral); }
.roadmap-top { display: flex; align-items: center; justify-content: space-between; }
.roadmap-top span { font-family: Georgia,serif; font-size: 12px; font-style: italic; }
.roadmap-top i { padding: 5px 7px; color: var(--lime); border: 1px solid rgba(185,239,106,.3); border-radius: 100px; font-size: 7px; font-style: normal; text-transform: uppercase; letter-spacing: .08em; }
.roadmap-card.is-current .roadmap-top i { color: var(--ink); border-color: rgba(24,26,26,.3); }
.roadmap-card h3 { margin: 55px 0 8px; font-size: 25px; }
.roadmap-card strong { font-size: 11px; letter-spacing: .08em; text-transform: uppercase; }
.roadmap-card p { margin-top: 22px; color: rgba(255,255,255,.47); font-size: 11px; line-height: 1.55; }
.roadmap-card.is-current p { color: rgba(24,26,26,.66); }
.roadmap-card small { position: absolute; right: 24px; bottom: 22px; left: 24px; padding-top: 11px; border-top: 1px solid var(--line-light); color: rgba(255,255,255,.35); font-size: 7px; letter-spacing: .08em; text-transform: uppercase; }
.roadmap-card.is-current small { color: rgba(24,26,26,.58); border-color: rgba(24,26,26,.18); }

.safety-section { background: var(--paper-deep); }
.safety-layout { display: grid; grid-template-columns: .9fr 1.1fr; gap: 100px; align-items: center; margin-top: 70px; }
.safety-copy h2 { margin: 25px 0 28px; }
.safety-copy > p:not(.eyebrow) { max-width: 540px; color: var(--muted); font-size: 16px; line-height: 1.6; }
.release-demo { display: flex; align-items: center; gap: 22px; margin-top: 38px; }
.release-demo button { display: flex; min-height: 60px; align-items: center; gap: 12px; padding: 0 19px; color: var(--white); border: 0; border-radius: 12px; background: var(--ink); cursor: pointer; font-size: 10px; font-weight: 750; }
.release-demo button i { width: 25px; height: 25px; border: 4px solid #9f2f26; border-radius: 50%; background: var(--coral); box-shadow: inset 0 -4px 0 rgba(0,0,0,.15); }
.release-demo button.is-triggered { color: var(--ink); background: var(--coral); }
.release-demo button.is-triggered i { border-color: #303333; background: var(--ink); box-shadow: none; }
.release-demo > div { display: flex; flex-direction: column; }
.release-demo > div span { font-size: 12px; font-weight: 650; }
.release-demo > div small { margin-top: 4px; color: var(--muted); font-size: 8px; }
.safety-stack { display: grid; }
.safety-stack article { display: grid; grid-template-columns: 42px 1fr 25px; gap: 15px; align-items: center; min-height: 105px; padding: 0 21px; border-top: 1px solid rgba(24,26,26,.22); }
.safety-stack article:last-child { border-bottom: 1px solid rgba(24,26,26,.22); }
.safety-stack article > span { color: var(--coral-deep); font-family: Georgia,serif; font-size: 12px; font-style: italic; }
.safety-stack article > div { display: flex; flex-direction: column; }
.safety-stack b { font-size: 15px; }
.safety-stack small { margin-top: 5px; color: var(--muted); font-size: 9px; }
.safety-stack article > i { position: relative; width: 23px; height: 23px; border: 1px solid #70963e; border-radius: 50%; }
.safety-stack article > i::after { position: absolute; top: 5px; left: 7px; width: 6px; height: 9px; border-right: 1px solid #70963e; border-bottom: 1px solid #70963e; content: ""; transform: rotate(42deg); }
.medical-note { display: grid; grid-template-columns: 44px 1fr; gap: 20px; align-items: center; margin-top: 72px; padding: 27px; border: 1px solid rgba(229,83,67,.35); border-radius: 17px; background: rgba(255,115,95,.07); }
.medical-note > span { display: grid; width: 36px; height: 36px; place-items: center; border-radius: 50%; background: var(--coral); font-family: Georgia,serif; font-style: italic; }
.medical-note p { margin: 0; color: #6f5d57; font-size: 10px; line-height: 1.55; }
.medical-note b { color: var(--ink); }

.deliverables-section { background: var(--paper-light); }
.deliverables-panel { display: grid; grid-template-columns: .85fr 1.15fr; gap: 100px; padding: 74px; color: var(--white); border-radius: 30px; background: var(--ink); }
.deliverables-copy .section-kicker { color: rgba(255,255,255,.45); }
.deliverables-copy h2 { margin: 42px 0 26px; font-size: clamp(48px,5.7vw,78px); }
.deliverables-copy > p:not(.section-kicker) { max-width: 470px; color: rgba(255,255,255,.48); font-size: 14px; line-height: 1.6; }
.download-list { display: grid; }
.download-list a { display: flex; min-height: 92px; align-items: center; justify-content: space-between; padding: 12px 0; border-top: 1px solid var(--line-light); }
.download-list a:last-child { border-bottom: 1px solid var(--line-light); }
.download-list a > span { display: grid; grid-template-columns: 48px 1fr; grid-template-rows: auto auto; align-items: center; }
.download-list i { display: grid; width: 34px; height: 34px; grid-row: 1/3; place-items: center; color: var(--lime); border: 1px solid rgba(185,239,106,.26); border-radius: 8px; font-size: 7px; font-style: normal; }
.download-list b { font-size: 12px; }
.download-list small { color: rgba(255,255,255,.38); font-size: 8px; }
.download-list strong { font-size: 21px; transition: transform 160ms ease; }
.download-list a:hover strong { transform: translateY(4px); }
.definition-done { display: grid; grid-template-columns: .42fr 1fr; gap: 80px; margin-top: 70px; padding-top: 42px; border-top: 1px solid var(--line); }
.dod-grid { display: grid; grid-template-columns: repeat(2,1fr); gap: 18px 25px; }
.dod-grid span { display: flex; gap: 10px; align-items: flex-start; color: var(--muted); font-size: 10px; }
.dod-grid i { flex: 0 0 auto; width: 8px; height: 8px; margin-top: 3px; border-radius: 50%; background: var(--coral); }

.site-footer { padding: 55px 0 30px; color: var(--white); background: #111313; }
.brand-light sup { color: var(--coral); }
.footer-top { display: grid; grid-template-columns: 1fr 1fr auto; align-items: center; padding-bottom: 40px; border-bottom: 1px solid var(--line-light); }
.footer-top p { margin: 0; color: rgba(255,255,255,.4); font-size: 10px; }
.footer-top > a:last-child { font-size: 10px; }
.footer-bottom { display: flex; justify-content: space-between; padding-top: 21px; color: rgba(255,255,255,.28); font-size: 8px; text-transform: uppercase; letter-spacing: .08em; }

@media (max-width: 1180px) {
  .hero-callout { display: none; }
  .desktop-nav { gap: 21px; }
  .principle-head,.architecture-intro,.hardware-intro,.bom-intro,.roadmap-intro,.modes-intro { grid-template-columns: 1.25fr .75fr; gap: 45px; }
  .concepts-intro { grid-template-columns: 1.25fr .75fr; gap: 45px; }
  .concept-stage { grid-template-columns: minmax(0,1.18fr) minmax(330px,.82fr); }
  .concept-stage-copy { padding: 40px 33px 34px; }
  .handheld-intro { grid-template-columns: 1.25fr .75fr; gap: 45px; }
  .handheld-product { grid-template-columns: minmax(0,1.25fr) minmax(340px,.75fr); }
  .gesture-scale { grid-template-columns: repeat(2,1fr); }
  .gesture-card:nth-child(3) { border-left: 0; border-top: 1px solid var(--line); }
  .gesture-card:nth-child(4) { border-top: 1px solid var(--line); }
  .architecture-flow { grid-template-columns: 1fr 70px 1fr 70px 1fr; }
  .simulator-stage { grid-template-columns: .8fr 80px 1.2fr; }
  .cartridge-board { grid-template-columns: 1fr 1fr; }
  .drawing-pane { min-height: 580px; }
  .drawing-pane > img { height: 460px; }
  .module-feature { gap: 45px; }
  .deliverables-panel { gap: 60px; padding: 55px; }
}

@media (max-width: 900px) {
  :root { --wrap: min(100% - 36px, 780px); }
  .section { padding: 92px 0; }
  .desktop-nav { display: none; }
  .menu-button { display: flex; min-width: 78px; align-items: center; justify-content: space-between; padding: 9px 12px; border: 1px solid var(--line); border-radius: 9px; background: rgba(255,255,255,.4); font-size: 9px; }
  .menu-button i { position: relative; width: 13px; height: 1px; background: var(--ink); }
  .menu-button i::after { position: absolute; top: 4px; right: 0; width: 9px; height: 1px; background: var(--ink); content: ""; }
  .mobile-nav { position: fixed; top: 89px; right: 16px; left: 16px; display: grid; padding: 18px; border: 1px solid var(--line); border-radius: 16px; background: rgba(250,248,243,.97); box-shadow: 0 20px 60px rgba(0,0,0,.14); backdrop-filter: blur(15px); }
  .mobile-nav[hidden] { display: none; }
  .mobile-nav a { padding: 15px 7px; border-bottom: 1px solid var(--line); font-size: 13px; }
  .mobile-nav a:last-child { border-bottom: 0; }
  .hero { min-height: 860px; }
  .hero-media { inset: 180px -30% 0 15%; opacity: .65; }
  .hero-media img { object-position: 58% center; }
  .hero-media-fade { background: linear-gradient(180deg,var(--paper-light) 0%,rgba(247,244,238,.52) 38%,rgba(247,244,238,.18)); }
  .hero-copy { padding-top: 150px; }
  .hero h1 { max-width: 680px; }
  .hero-lead { max-width: 530px; }
  .concept-note { display: none; }
  .principle-head,.architecture-intro,.hardware-intro,.bom-intro,.roadmap-intro,.modes-intro,.simulator-heading { display: grid; grid-template-columns: 1fr; gap: 28px; align-items: start; }
  .concepts-intro { grid-template-columns: 1fr; gap: 28px; align-items: start; }
  .principle-head p,.architecture-intro p,.hardware-intro p,.bom-intro p,.roadmap-intro p,.modes-intro p { max-width: 620px; }
  .concepts-intro p { max-width: 620px; }
  .concept-stage { grid-template-columns: 1fr; }
  .concept-stage-media { min-height: 520px; }
  .concept-stage-copy { min-height: 590px; }
  .concept-grid { grid-template-columns: repeat(2,1fr); }
  .concept-criteria { flex-wrap: wrap; justify-content: flex-start; }
  .concept-criteria span { width: 100%; margin-right: 0; }
  .handheld-intro { grid-template-columns: 1fr; gap: 28px; align-items: start; }
  .handheld-intro p { max-width: 620px; }
  .handheld-product { grid-template-columns: 1fr; }
  .handheld-visual { min-height: 650px; }
  .handheld-console { min-height: 620px; }
  .handheld-specs { grid-template-columns: repeat(2,1fr); }
  .handheld-specs article:nth-child(3) { border-top: 1px solid var(--line); border-left: 0; }
  .handheld-specs article:nth-child(4) { border-top: 1px solid var(--line); }
  .handheld-principles { grid-template-columns: 1fr; }
  .non-negotiables { grid-template-columns: 1fr 1fr; }
  .non-negotiables .eyebrow { grid-column: 1/-1; }
  .latency-readout { width: 100%; border-left: 0; border-top: 1px solid var(--line-light); padding: 17px 0 0; }
  .simulator-toolbar { flex-wrap: wrap; gap: 18px 28px; }
  .intensity-control { width: 270px; }
  .simulator-stage { grid-template-columns: 1fr; }
  .controller-panel,.feet-panel { border: 0; }
  .controller-panel { border-bottom: 1px solid var(--line-light); }
  .feet-panel { border-top: 1px solid var(--line-light); }
  .transform-column { min-height: 120px; flex-direction: row; }
  .transform-column small { max-width: 100px; }
  .simulator-rules { grid-template-columns: repeat(2,1fr); }
  .simulator-rules div:nth-child(3) { border-left: 0; border-top: 1px solid var(--line-light); }
  .simulator-rules div:nth-child(4) { border-top: 1px solid var(--line-light); }
  .architecture-flow { grid-template-columns: 1fr; gap: 25px; }
  .flow-node { min-height: 290px; }
  .flow-link { min-height: 70px; }
  .flow-link i { width: 1px; height: 50px; }
  .flow-link i::before { top: 0; left: -3px; }
  .flow-link i::after { top: auto; right: auto; bottom: 0; left: -3px; }
  .software-layers { grid-template-columns: 1fr; gap: 45px; }
  .cartridge-board { grid-template-columns: 1fr; }
  .drawing-pane { border-right: 0; border-bottom: 1px solid var(--line); }
  .spec-ribbon { grid-template-columns: repeat(3,1fr); }
  .spec-ribbon div:nth-child(4) { border-left: 0; border-top: 1px solid var(--line); }
  .spec-ribbon div:nth-child(5) { border-top: 1px solid var(--line); }
  .module-feature { grid-template-columns: 1fr; }
  .module-copy { max-width: 680px; }
  .decision-top { align-items: start; flex-direction: column; }
  .drive-content { grid-template-columns: 1fr; }
  .drive-illustration { border-right: 0; border-bottom: 1px solid var(--line); }
  .mode-cards { grid-template-columns: 1fr; }
  .mode-cards article + article { border-top: 1px solid var(--line-light); border-left: 0; }
  .bom-footer { align-items: start; flex-direction: column; }
  .safety-layout { grid-template-columns: 1fr; gap: 55px; }
  .deliverables-panel { grid-template-columns: 1fr; }
  .definition-done { grid-template-columns: 1fr; gap: 28px; }
}

@media (max-width: 600px) {
  :root { --wrap: calc(100vw - 28px); --radius: 20px; }
  .section { padding: 74px 0; }
  h2 { font-size: clamp(40px,11.5vw,52px); }
  .site-header { top: 9px; width: calc(100vw - 18px); min-height: 56px; }
  .hero { min-height: 900px; }
  .hero-copy { padding-top: 126px; }
  .hero h1 { font-size: clamp(45px,12vw,58px); }
  .hero-lead { font-size: 15px; }
  .hero-actions { align-items: stretch; flex-direction: column; max-width: 300px; }
  .hero-proof { grid-template-columns: 1fr; max-width: 270px; gap: 14px; }
  .hero-proof div + div { padding: 14px 0 0; border-top: 1px solid var(--line); border-left: 0; }
  .hero-media { inset: 420px -62% 0 -25%; }
  .hero-media-fade { background: linear-gradient(180deg,var(--paper-light) 0,rgba(247,244,238,.25) 40%,transparent 80%); }
  .gesture-scale { grid-template-columns: 1fr; }
  .gesture-card { min-height: 360px; border-top: 1px solid var(--line); border-left: 0 !important; }
  .gesture-card:first-child { border-top: 0; }
  .non-negotiables { grid-template-columns: 1fr; gap: 28px; padding: 34px 25px; }
  .non-negotiables .eyebrow { grid-column: auto; }
  .concepts-topline { align-items: flex-start; flex-direction: column; }
  .selection-status { align-self: stretch; justify-content: center; }
  .concepts-intro p { font-size: 14px; }
  .concept-stage { margin-top: 48px; border-radius: 20px; }
  .concept-stage-media { min-height: 330px; }
  .concept-stage-copy { min-height: 580px; padding: 35px 23px 24px; }
  .concept-stage-copy h3 { margin-top: 24px; font-size: 60px; }
  .concept-tagline { font-size: 18px; }
  .concept-stage-actions { right: 12px; bottom: 12px; }
  .concept-stage-actions button { width: 43px; height: 43px; }
  .concept-render-note { bottom: 16px; left: 12px; max-width: calc(100% - 115px); font-size: 7px; }
  .concept-grid { display: flex; margin-right: -14px; overflow-x: auto; scroll-snap-type: x mandatory; scrollbar-width: none; }
  .concept-grid::-webkit-scrollbar { display: none; }
  .concept-card { min-width: min(76vw, 285px); scroll-snap-align: start; }
  .concept-card-meta { min-height: 101px; }
  .concept-criteria { gap: 12px; }
  .concept-criteria p { font-size: 8px; }
  .handheld-intro { margin-top: 45px; }
  .handheld-intro p { font-size: 14px; }
  .handheld-product { min-height: 0; margin-top: 48px; border-radius: 20px; }
  .handheld-visual { min-height: 420px; }
  .handheld-visual > img { object-position: 61% center; }
  .handheld-visual figcaption { right: 12px; bottom: 12px; left: 12px; text-align: center; }
  .handheld-callout { left: 12px; min-width: 0; padding: 3px; border: 0; background: transparent; box-shadow: none; backdrop-filter: none; }
  .handheld-callout::after { width: 28px; }
  .handheld-callout b { display: none; }
  .handheld-console { min-height: 600px; padding: 28px 20px 22px; }
  .handheld-screen { padding: 20px 17px; }
  .handheld-screen > output { font-size: 40px; }
  .handheld-specs { grid-template-columns: 1fr; }
  .handheld-specs article { min-height: 180px; padding: 24px 8px; }
  .handheld-specs article + article { border-top: 1px solid var(--line); border-left: 0; }
  .handheld-specs b { margin-top: 35px; }
  .handheld-principles { gap: 25px; }
  .handheld-principles p { grid-template-columns: 95px 1fr; }
  .simulator-heading p { font-size: 14px; }
  .simulator-shell { margin-right: -7px; margin-left: -7px; border-radius: 20px; }
  .simulator-toolbar { align-items: stretch; flex-direction: column; padding: 14px; }
  .mode-switch { display: grid; grid-template-columns: repeat(3,1fr); }
  .mode-switch button { padding: 0 8px; font-size: 9px; }
  .intensity-control { width: 100%; }
  .sim-status { margin-left: 3px; }
  .controller-panel,.feet-panel { padding: 18px 12px; }
  .controller-canvas-wrap { height: 330px; }
  .feet-panel canvas { height: 370px; }
  .record-deck { grid-template-columns: 1fr 70px; }
  .record-timeline { grid-row: 2; grid-column: 1/-1; }
  .record-deck > span { grid-row: 1; grid-column: 2; }
  .play-button { grid-row: 3; grid-column: 1/-1; }
  .simulator-rules { grid-template-columns: 1fr; }
  .simulator-rules div + div { border-top: 1px solid var(--line-light); border-left: 0; }
  .software-layers { margin-top: 75px; }
  .layer-list article { grid-template-columns: 30px 1fr; }
  .layer-list code { display: none; }
  .drawing-pane { min-height: 470px; padding: 20px; }
  .drawing-pane > img { height: 380px; }
  .drawing-stamp { grid-template-columns: 1fr; gap: 3px; }
  .drawing-stamp b,.drawing-stamp small { display: none; }
  .cartridge-specs { padding: 38px 24px; }
  .spec-ribbon { grid-template-columns: repeat(2,1fr); }
  .spec-ribbon div:nth-child(3),.spec-ribbon div:nth-child(5) { border-left: 0; }
  .spec-ribbon div:nth-child(3) { border-top: 1px solid var(--line); }
  .module-photo img { aspect-ratio: 1.15; }
  .module-photo figcaption { right: 8px; bottom: 8px; left: 8px; justify-content: space-between; }
  .check-list { grid-template-columns: 1fr; }
  .drive-decision { margin-top: 80px; }
  .decision-top,.drive-summary { padding: 34px 23px; }
  .drive-tabs { width: 100%; }
  .drive-tabs button { flex: 1; padding: 0 7px; }
  .pros-cons { grid-template-columns: 1fr; }
  .mode-cards article { padding: 24px 20px; }
  .mode-animation { height: 170px; }
  .bom-table-wrap { margin-right: -14px; }
  .safety-copy h2 { font-size: 51px; }
  .release-demo { align-items: start; flex-direction: column; }
  .safety-stack article { padding: 0 5px; }
  .deliverables-panel { gap: 45px; padding: 36px 22px; }
  .download-list a > span { grid-template-columns: 42px 1fr; }
  .dod-grid { grid-template-columns: 1fr; }
  .footer-top { grid-template-columns: 1fr auto; gap: 25px; }
  .footer-top p { grid-column: 1/-1; grid-row: 2; }
  .footer-bottom { gap: 20px; flex-direction: column; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *,*::before,*::after { animation-duration: .01ms !important; animation-iteration-count: 1 !important; transition-duration: .01ms !important; }
}