@font-face {
  font-family: "Onest";
  src: url("../assets/fonts/onest-latin-wght-normal.woff2") format("woff2");
  font-weight: 100 900;
  font-style: normal;
  font-display: swap;
}

:root {
  --paper: #f4f3ef;
  --ink: #0a0a0a;
  --muted: #696963;
  --line: rgba(10, 10, 10, .28);
  --green: #00d973;
  --orange: #ff8a00;
  --blue: #1686ff;
  --red: #ff473d;
  --purple: #a855f7;
  --pad: clamp(22px, 3.2vw, 52px);
  --display: "Onest", "Helvetica Neue", sans-serif;
  --body: "Helvetica Neue", Helvetica, Arial, sans-serif;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  color: var(--ink);
  background: var(--paper);
  font-family: var(--body);
  -webkit-font-smoothing: antialiased;
}
button, a { font: inherit; }
a { color: inherit; }
img { display: block; max-width: 100%; height: auto; }
figure, p, h1, h2, h3, dl, dd { margin: 0; }

.skip-link {
  position: fixed;
  top: 8px;
  left: 8px;
  z-index: 100;
  padding: 10px 14px;
  background: var(--ink);
  color: white;
  transform: translateY(-150%);
}
.skip-link:focus { transform: translateY(0); }
.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 10;
  min-height: 78px;
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  align-items: center;
  gap: 24px;
  padding: 14px var(--pad);
  border: 1px solid var(--line);
  border-width: 1px 0;
  background: rgba(244, 243, 239, .94);
}
.brand {
  justify-self: start;
  display: flex;
  align-items: center;
  gap: 12px;
  text-decoration: none;
  font-family: var(--display);
  font-size: 26px;
  font-weight: 700;
  letter-spacing: -.04em;
}
.brand img { display: block; border-radius: 6px; }
.primary-nav { display: flex; gap: 24px; }
.primary-nav a, .text-link {
  position: relative;
  font-size: 11px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: .04em;
  text-decoration-thickness: 1px;
  text-underline-offset: 5px;
}
.primary-nav a { text-decoration: none; }
.primary-nav a::after {
  content: "";
  position: absolute;
  right: 0;
  bottom: -6px;
  left: 0;
  height: 1px;
  background: currentColor;
  transform: scaleX(0);
  transform-origin: right;
  transition: transform 180ms cubic-bezier(.16, 1, .3, 1);
}
.primary-nav a:hover::after, .primary-nav a:focus-visible::after { transform: scaleX(1); transform-origin: left; }
.text-link { display: flex; align-items: center; gap: 8px; }
.text-link .label-short { display: none; }
.arrow-icon { width: 18px; height: 18px; fill: none; stroke: currentColor; stroke-width: 1.7; stroke-linecap: square; stroke-linejoin: miter; flex: 0 0 auto; transition: transform 180ms cubic-bezier(.16, 1, .3, 1); }
.text-link:hover .arrow-icon, .primary-action:hover .arrow-icon, .beta-action:hover .arrow-icon { transform: translate(3px, -3px); }
.header-tools {
  justify-self: end;
  display: flex;
  align-items: center;
  gap: 20px;
}
.language-switch { display: flex; gap: 2px; }
.language-switch button {
  border: 0;
  background: transparent;
  min-width: 44px;
  min-height: 44px;
  padding: 6px;
  color: var(--muted);
  cursor: pointer;
  font-size: 11px;
  font-weight: 700;
}
.language-switch button[aria-pressed="true"] { color: var(--ink); text-decoration: underline; text-underline-offset: 4px; }

.product-proof {
  min-height: calc(100vh - 78px);
  display: grid;
  grid-template-columns: 43% 57%;
  grid-template-rows: 1fr auto;
  border-bottom: 1px solid var(--line);
  overflow: hidden;
}
.hero-copy {
  min-height: 610px;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  padding: clamp(56px, 7vw, 116px) var(--pad) 46px;
  border-right: 1px solid var(--line);
}
h1, h2 {
  font-family: var(--display);
  font-weight: 750;
  letter-spacing: -.04em;
  line-height: .88;
}
h1 { max-width: 720px; font-size: clamp(58px, 6.3vw, 96px); }
.hero-copy > p {
  max-width: 470px;
  margin-top: 38px;
  font-size: clamp(18px, 1.5vw, 24px);
  line-height: 1.35;
  letter-spacing: -.025em;
}
.hero-actions { margin-top: auto; padding-top: 48px; }
.primary-action {
  width: min(100%, 330px);
  min-height: 72px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 24px;
  background: var(--green);
  border: 1px solid var(--ink);
  text-decoration: none;
  font-weight: 700;
  transition: background-color 150ms ease-out;
}
.primary-action:hover { background: #00c969; }
.primary-action:focus-visible, .beta-action:focus-visible, button:focus-visible, a:focus-visible { outline: 3px solid var(--ink); outline-offset: 3px; }
.live-demo :focus-visible, .skip-link:focus-visible, .beta-action:focus-visible { outline-color: var(--paper); }
.compatibility { display: block; margin-top: 13px; color: var(--muted); font-size: 12px; }
.hero-beta-risk {
  display: block;
  max-width: 330px;
  margin-top: 6px;
  color: #4b4b47;
  font-size: 12px;
  line-height: 1.45;
}

.product-stage {
  position: relative;
  min-width: 0;
  min-height: 610px;
  overflow: hidden;
  background: #ecebe7;
}
.climbing-material {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: 58% center;
  opacity: .74;
  transform-origin: right center;
}
.device-cluster {
  position: absolute;
  z-index: 2;
  width: min(82%, 760px);
  left: 11%;
  bottom: -16%;
}
.device-cluster picture { display: block; }
.device-cluster img { width: 100%; filter: drop-shadow(0 20px 26px rgba(0,0,0,.13)); }

.motion-ready .climbing-material {
  clip-path: inset(0 0 0 16%);
  filter: saturate(.72) contrast(.94);
}
.motion-ready .device-cluster img {
  transform: translateY(22px) scale(.985);
  filter: drop-shadow(0 8px 12px rgba(0,0,0,.08));
}
.motion-ready.motion-active .climbing-material {
  clip-path: inset(0);
  filter: saturate(1) contrast(1);
  transition: clip-path 720ms cubic-bezier(.16, 1, .3, 1), filter 720ms cubic-bezier(.16, 1, .3, 1);
}
.motion-ready.motion-active .device-cluster img {
  transform: none;
  filter: drop-shadow(0 20px 26px rgba(0,0,0,.13));
  transition: transform 720ms cubic-bezier(.16, 1, .3, 1) 120ms, filter 720ms cubic-bezier(.16, 1, .3, 1) 120ms;
}
@supports (animation-timeline: view()) {
  .product-stage {
    animation: stage-resolve both;
    animation-timeline: view();
    animation-range: exit 0% exit 82%;
    animation-timing-function: cubic-bezier(.16, 1, .3, 1);
  }
  .device-cluster {
    animation: cluster-resolve both;
    animation-timeline: view();
    animation-range: exit 0% exit 82%;
    animation-timing-function: cubic-bezier(.16, 1, .3, 1);
  }
  .phase-rail {
    animation: rail-resolve both;
    animation-timeline: view();
    animation-range: exit 0% exit 82%;
    animation-timing-function: cubic-bezier(.16, 1, .3, 1);
  }
}
@keyframes stage-resolve { to { clip-path: inset(0 0 22% 0); filter: saturate(.72); } }
@keyframes cluster-resolve { to { transform: translateY(72px) scale(.94); } }
@keyframes rail-resolve { to { background: var(--green); transform: translateY(-12px); } }

.phase-rail {
  grid-column: 1 / -1;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  border-top: 1px solid var(--line);
}
.phase-rail span { min-height: 74px; display: flex; align-items: center; gap: 22px; padding: 0 var(--pad); border-right: 1px solid var(--line); }
.phase-rail span:last-child { border-right: 0; }
.phase-rail b { font-size: 22px; font-weight: 400; }
.phase-rail i { font-style: normal; font-size: 13px; font-weight: 700; text-transform: uppercase; }
.motion-active .phase-rail span { animation: phase-signal 420ms cubic-bezier(.16, 1, .3, 1) both; }
.motion-active .phase-rail span:nth-child(1) { animation-delay: 430ms; }
.motion-active .phase-rail span:nth-child(2) { animation-delay: 610ms; }
.motion-active .phase-rail span:nth-child(3) { animation-delay: 790ms; }
@keyframes phase-signal {
  0%, 100% { background-color: transparent; }
  45% { background-color: rgba(0, 217, 115, .24); }
}

/* Catalog section headers */
.catalog-intro {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 10%;
  padding: clamp(70px, 9vw, 150px) var(--pad);
  border-bottom: 1px solid var(--line);
}
.catalog-intro h2, .health-copy h2, .evidence h2, .beta h2, .section-header h2 { font-size: clamp(50px, 6.3vw, 96px); }
.catalog-intro p, .section-header p {
  max-width: 600px;
  align-self: end;
  font-size: clamp(20px, 2vw, 31px);
  line-height: 1.32;
  letter-spacing: -.035em;
}

.catalog-row {
  min-height: 460px;
  display: grid;
  grid-template-columns: 10% 28% 28% 34%;
  border-bottom: 1px solid var(--line);
}
.catalog-row > * { min-width: 0; padding: 36px; border-right: 1px solid var(--line); }
.catalog-row > *:last-child { border-right: 0; }
.sequence-number { font-size: clamp(38px, 4vw, 72px); font-weight: 300; line-height: 1; letter-spacing: -.04em; }
.sequence-copy h3 {
  font-family: var(--display);
  font-size: clamp(34px, 4vw, 68px);
  line-height: 1;
  letter-spacing: -.04em;
  text-transform: uppercase;
}
.sequence-copy p { max-width: 350px; margin-top: 24px; color: #343431; line-height: 1.55; }
.signal-notation { align-self: stretch; display: flex; flex-direction: column; justify-content: center; gap: 18px; }
.signal-notation svg { width: 100%; overflow: visible; }
.signal-notation path { fill: none; stroke: var(--ink); stroke-width: 1.5; vector-effect: non-scaling-stroke; }
.signal-notation span, .section-index, .section-indicator { font-size: 11px; font-weight: 700; line-height: 1.4; letter-spacing: .08em; overflow-wrap: anywhere; text-transform: uppercase; }
.catalog-screen { overflow: hidden; display: flex; align-items: center; justify-content: center; padding: 36px; background: #e8e7e2; }
.watch-crop picture { display: block; width: min(100%, 300px); }
.watch-crop img { width: 100%; border: 1px solid rgba(0,0,0,.15); border-radius: 42px; filter: drop-shadow(0 16px 18px rgba(0,0,0,.14)); }

.hang-row { grid-template-rows: auto 1fr; }
.hang-row .live-demo { grid-column: 3; grid-row: 1 / 3; border-right: 1px solid var(--line); }
.hang-row .signal-notation { grid-column: 1 / 3; grid-row: 2; border-top: 1px solid var(--line); }
.hang-row .catalog-screen { grid-column: 4; grid-row: 1 / 3; }
.live-demo {
  background: #090b0a;
  color: white;
  display: flex;
  flex-direction: column;
  padding: 34px;
}
.demo-status { display: grid; grid-template-columns: 1fr auto auto; align-items: end; }
.demo-status span { align-self: start; color: var(--green); font-size: 13px; font-weight: 700; }
.demo-status strong { font-size: clamp(72px, 8vw, 96px); font-weight: 300; line-height: .8; letter-spacing: -.04em; font-variant-numeric: tabular-nums; }
.demo-status small { margin: 0 0 4px 8px; }
.demo-label { margin-top: 24px; color: #b4b4b0; font-size: 11px; text-transform: uppercase; letter-spacing: .06em; }
.demo-meta { display: flex; justify-content: space-between; margin-top: 34px; color: #aaa; font-size: 11px; }
.demo-track { height: 4px; margin-top: 16px; background: #333; overflow: hidden; }
.demo-track i { display: block; width: 100%; height: 100%; background: var(--green); transform: scaleX(0); transform-origin: left; transition: transform .15s linear; }
.demo-controls { display: grid; grid-template-columns: 1fr auto; gap: 10px; margin-top: auto; padding-top: 40px; }
.demo-controls button { min-height: 48px; border: 1px solid #777; color: white; background: transparent; cursor: pointer; font-weight: 700; transition: color 140ms ease-out, background-color 140ms ease-out, border-color 140ms ease-out; }
.demo-controls button:first-child { background: var(--green); border-color: var(--green); color: var(--ink); }
.demo-controls button:hover { border-color: white; background: rgba(255,255,255,.1); }
.demo-controls button[disabled] { border-color: #4a4a4a; color: #8a8a86; cursor: default; }
.demo-controls button[disabled]:hover { border-color: #4a4a4a; background: transparent; }
.demo-controls button:first-child:hover { border-color: #00c969; background: #00c969; }
.next-grip-spec { display: flex; flex-direction: column; justify-content: space-between; background: var(--blue); color: white; }
.next-grip-spec span { color: var(--ink); font-size: 12px; font-weight: 700; text-transform: uppercase; }
.next-grip-spec strong { font-size: clamp(26px, 3vw, 50px); line-height: 1; letter-spacing: -.04em; }

.haptic-relationship {
  min-height: 520px;
  display: grid;
  grid-template-columns: 37% 38% 25%;
  border-bottom: 1px solid var(--line);
}
.haptic-relationship > * { min-width: 0; padding: var(--pad); border-right: 1px solid var(--line); }
.haptic-relationship > *:last-child { border-right: 0; }
.relationship-copy h3 { max-width: 520px; margin-top: 42px; font-family: var(--display); font-size: clamp(30px, 3.3vw, 54px); line-height: .98; letter-spacing: -.04em; }
.hand-diagram { width: 100%; align-self: center; }
.hand-diagram path, .hand-diagram circle { vector-effect: non-scaling-stroke; }
.diagram-outline, .diagram-line { fill: none; stroke: var(--ink); stroke-width: 1.4; }
.diagram-contact { fill: var(--green); stroke: var(--ink); stroke-width: 1.4; }
.diagram-pulse { fill: none; stroke: var(--green); stroke-width: 2; }
.diagram-dot { fill: var(--ink); }
.relationship-spec { align-self: end; }
.relationship-spec div { padding: 15px 0; border-bottom: 1px solid var(--line); }
.relationship-spec dd { margin-top: 6px; }

/* Grip ergonomics footer in technical catalog */
.grip-spec-footer {
  padding: var(--pad);
  border-bottom: 1px solid var(--line);
  background: #ecebe7;
}
.grip-spec-copy h3 {
  font-family: var(--display);
  font-size: clamp(24px, 2.5vw, 36px);
  letter-spacing: -.03em;
  margin-bottom: 12px;
}
.grip-spec-copy p {
  max-width: 720px;
  font-size: 16px;
  line-height: 1.5;
  color: #343431;
}
.grip-tag-row {
  margin-top: 16px;
  font-size: 13px;
  font-weight: 700;
  color: var(--muted);
  letter-spacing: .02em;
}

/* General catalog section styling */
.catalog-section {
  border-bottom: 1px solid var(--line);
}
.section-header {
  display: flex;
  flex-direction: column;
  padding: clamp(64px, 8vw, 120px) var(--pad) clamp(36px, 4vw, 60px);
  border-bottom: 1px solid var(--line);
}
.section-indicator {
  color: var(--muted);
  margin-bottom: 18px;
}

/* Technical grid layouts (3 columns, 2 columns) */
.technical-trio {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  min-height: 480px;
}
.technical-trio > * {
  padding: var(--pad);
  border-right: 1px solid var(--line);
}
.technical-trio > *:last-child {
  border-right: 0;
}

.technical-pair {
  display: grid;
  grid-template-columns: 1fr 1fr;
  min-height: 480px;
}
.technical-pair > * {
  padding: var(--pad);
  border-right: 1px solid var(--line);
}
.technical-pair > *:last-child {
  border-right: 0;
}

.technical-cell {
  display: flex;
  flex-direction: column;
}
.cell-label {
  font-size: 11px;
  font-weight: 700;
  letter-spacing: .08em;
  text-transform: uppercase;
  color: var(--muted);
  margin-bottom: 16px;
}
.technical-cell h3 {
  font-family: var(--display);
  font-size: clamp(26px, 2.5vw, 40px);
  line-height: 1.05;
  letter-spacing: -.035em;
  text-transform: uppercase;
}
.technical-cell p {
  max-width: 420px;
  margin-top: 18px;
  color: #343431;
  font-size: 15px;
  line-height: 1.55;
}
.cell-spec {
  margin-top: auto;
  padding-top: 24px;
  border-top: 1px solid var(--line);
}
.cell-spec div {
  display: grid;
  grid-template-columns: 36% 1fr;
  padding: 12px 0;
  border-bottom: 1px solid var(--line);
  font-size: 13px;
}
.cell-spec div:last-child {
  border-bottom: 0;
}
.cell-spec dt {
  color: var(--muted);
  font-size: 11px;
  text-transform: uppercase;
  overflow-wrap: anywhere;
}
.cell-spec dd {
  font-weight: 600;
}
.formula-block {
  margin-top: auto;
  padding: 20px;
  background: #ecebe7;
  border: 1px solid var(--line);
  font-family: var(--body);
  font-size: 14px;
  font-weight: 600;
  line-height: 1.6;
  color: var(--ink);
  overflow-x: auto;
}

/* Training plan schedule board */
.plan-schedule-board {
  display: flex;
  flex-direction: column;
}
.plan-row {
  display: grid;
  grid-template-columns: 80px 1fr auto;
  align-items: center;
  gap: 24px;
  padding: 24px var(--pad);
  border-bottom: 1px solid var(--line);
  font-size: 16px;
  transition: background-color 150ms ease-out;
}
.plan-row:last-child {
  border-bottom: 0;
}
.plan-row:hover {
  background: #ecebe7;
}
.plan-row b {
  font-size: 24px;
  font-weight: 300;
  letter-spacing: -.04em;
}
.plan-row span {
  font-weight: 500;
}
.plan-row em {
  font-style: normal;
  font-size: 11px;
  font-weight: 700;
  letter-spacing: .08em;
  text-transform: uppercase;
  padding: 6px 12px;
  border: 1px solid var(--line);
  background: var(--paper);
}

/* Health context section */
.health-context {
  display: grid;
  grid-template-columns: 12% 48% 40%;
  min-height: 800px;
  border-bottom: 1px solid var(--line);
}
.health-context > * { padding: var(--pad); border-right: 1px solid var(--line); }
.health-context > *:last-child { border-right: 0; }
.health-copy { display: flex; flex-direction: column; }
.health-copy > p, .evidence-copy p {
  max-width: 620px;
  margin-top: 38px;
  font-size: clamp(18px, 1.8vw, 28px);
  line-height: 1.4;
  letter-spacing: -.025em;
}
.decision-spec { margin-top: 36px; border-top: 1px solid var(--line); }
.decision-spec div, .evidence-specimen dl div {
  display: grid;
  grid-template-columns: 36% 1fr;
  padding: 15px 0;
  border-bottom: 1px solid var(--line);
}
dt { color: var(--muted); font-size: 11px; line-height: 1.35; text-transform: uppercase; overflow-wrap: anywhere; }
dd { font-size: 13px; }
.health-screen { display: flex; align-items: flex-end; justify-content: center; background: #e8e7e2; overflow: hidden; }
.health-screen img { width: min(72%, 420px); border: 1px solid rgba(0,0,0,.15); border-bottom: 0; border-radius: 28px 28px 0 0; filter: drop-shadow(0 22px 30px rgba(0,0,0,.15)); }

/* Interactive Tendon Readiness Simulator */
.tendon-simulator {
  margin-top: 42px;
  padding: 28px;
  border: 1px solid var(--line);
  background: #ecebe7;
}
.sim-header h3 {
  font-family: var(--display);
  font-size: clamp(18px, 1.6vw, 24px);
  letter-spacing: -.03em;
  line-height: 1.1;
  text-transform: uppercase;
}
.sim-controls {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 28px;
  margin-top: 24px;
  margin-bottom: 24px;
}
.sim-slider-group label {
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 13px;
  font-weight: 700;
  margin-bottom: 10px;
}
.sim-slider-group strong {
  font-size: 18px;
  font-variant-numeric: tabular-nums;
}
.sim-slider-group input[type="range"] {
  width: 100%;
  height: 6px;
  accent-color: var(--ink);
  cursor: pointer;
}
.sim-checkbox-group {
  display: flex;
  flex-direction: column;
  gap: 8px;
}
.checkbox-legend {
  font-size: 11px;
  font-weight: 700;
  letter-spacing: .06em;
  text-transform: uppercase;
  color: var(--muted);
  margin-bottom: 4px;
}
.custom-check {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 13px;
  font-weight: 600;
  cursor: pointer;
}
.custom-check input {
  width: 18px;
  height: 18px;
  accent-color: var(--red);
  cursor: pointer;
}
.sim-result {
  padding-top: 20px;
  border-top: 1px solid var(--line);
}
.sim-status-badge {
  display: inline-block;
  padding: 6px 14px;
  font-size: 12px;
  font-weight: 700;
  letter-spacing: .06em;
  text-transform: uppercase;
  margin-bottom: 12px;
  border: 1px solid transparent;
}
.status-ready {
  background: rgba(0, 217, 115, .2);
  color: #007a3d;
  border-color: rgba(0, 217, 115, .6);
}
.status-caution {
  background: rgba(255, 138, 0, .2);
  color: #995200;
  border-color: rgba(255, 138, 0, .6);
}
.status-lockout {
  background: rgba(255, 71, 61, .2);
  color: #b3140c;
  border-color: rgba(255, 71, 61, .6);
}
.sim-recommendation {
  font-size: 14px;
  line-height: 1.55;
  color: #1a1a18;
}

/* Evidence section */
.evidence {
  display: grid;
  grid-template-columns: 12% 50% 38%;
  min-height: 650px;
  border-bottom: 1px solid var(--line);
}
.evidence > * { padding: var(--pad); border-right: 1px solid var(--line); }
.evidence > *:last-child { border-right: 0; }
.evidence-specimen { align-self: end; }
.evidence-specimen h3 { font-family: var(--display); font-size: clamp(19px, 1.5vw, 23px); line-height: 1.15; letter-spacing: -.03em; }
.specimen-title { max-width: 460px; margin-top: 12px; font-size: 15px; line-height: 1.45; }
.specimen-journal { margin-top: 8px; color: #4b4b47; font-size: 12px; }
.evidence-specimen dl { margin-top: 30px; border-top: 1px solid var(--line); }
.evidence-specimen dd a { color: var(--ink); text-decoration-thickness: 1px; text-underline-offset: 4px; overflow-wrap: anywhere; }

/* Beta Invitation Section */
.beta {
  display: grid;
  grid-template-columns: 1fr;
  background: var(--green);
  border-bottom: 1px solid var(--ink);
}
.beta-copy { display: flex; flex-direction: column; padding: clamp(70px, 9vw, 140px) var(--pad) clamp(46px, 5vw, 72px); }
.beta-body-row { display: grid; grid-template-columns: 1fr auto; gap: 52px; align-items: flex-end; margin-top: auto; padding-top: 46px; }
.beta-text-stack { display: flex; flex-direction: column; }
.beta-text-stack > p { max-width: 440px; font-size: 20px; line-height: 1.4; }
.beta-spec { max-width: 520px; margin-top: 34px; border-top: 1px solid var(--ink); }
.beta-spec div { display: grid; grid-template-columns: 34% 1fr; gap: 16px; padding: 14px 0; border-bottom: 1px solid var(--ink); }
.beta-spec dt { color: var(--ink); }
.beta-spec dd { font-size: 13px; font-weight: 700; }
.beta-qr-specimen { display: flex; flex-direction: column; align-items: center; gap: 12px; flex-shrink: 0; }
.beta-qr-specimen img { display: block; width: 190px; height: 190px; border: 1px solid var(--ink); background: white; }
.beta-qr-specimen figcaption { font-size: 11px; font-weight: 700; letter-spacing: .08em; text-transform: uppercase; }
.beta-action {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 24px;
  min-height: 104px;
  padding: 22px var(--pad);
  background: var(--ink);
  color: var(--paper);
  border-top: 1px solid var(--ink);
  text-decoration: none;
  font-size: clamp(26px, 2.8vw, 46px);
  font-weight: 700;
  letter-spacing: -.04em;
  transition: background-color 150ms ease-out;
}
.beta-action:hover { background: #232320; }
.beta-action .arrow-icon { width: 30px; height: 30px; }
.beta-disclaimer { padding: 20px var(--pad); border-top: 1px solid var(--ink); font-size: 13px; line-height: 1.5; }
.beta-disclaimer b { font-weight: 700; }
.beta-notes { display: flex; gap: 26px; padding: 18px var(--pad); border-top: 1px solid var(--ink); font-size: 12px; }
.beta-notes span { margin-right: auto; }
.site-footer { display: flex; justify-content: space-between; gap: 30px; padding: 28px var(--pad); font-size: 12px; }

/* Responsive adjustments */
@media (max-width: 980px) {
  .site-header { grid-template-columns: 1fr auto; }
  .primary-nav { display: none; }
  .product-proof { grid-template-columns: 46% 54%; grid-template-rows: 1fr auto; }
  .hero-copy, .product-stage { min-height: 610px; }
  .device-cluster { width: 96%; left: 2%; bottom: -10%; }
  .phase-rail { grid-row: 3; }
  .catalog-row { grid-template-columns: 13% 37% 50%; }
  .catalog-row .sequence-number { grid-column: 1; }
  .catalog-row .sequence-copy { grid-column: 2; }
  .catalog-row .signal-notation { grid-column: 1 / 3; border-top: 1px solid var(--line); }
  .catalog-row .catalog-screen, .next-grip-spec { grid-column: 3; grid-row: 1 / 3; }
  .hang-row .live-demo { grid-column: 3; }
  .hang-row { grid-template-rows: auto auto auto; }
  .hang-row .catalog-screen { grid-column: 1 / -1; grid-row: 3; min-height: 420px; border-top: 1px solid var(--line); }
  .technical-trio { grid-template-columns: 1fr; }
  .technical-trio > * { border-right: 0; border-bottom: 1px solid var(--line); }
  .technical-pair { grid-template-columns: 1fr; }
  .technical-pair > * { border-right: 0; border-bottom: 1px solid var(--line); }
  .health-context, .evidence { grid-template-columns: 16% 84%; }
  .health-screen, .evidence-specimen { grid-column: 2; border-top: 1px solid var(--line); min-height: 560px; }
  .beta-body-row { grid-template-columns: 1fr; gap: 24px; }
  .haptic-relationship { grid-template-columns: 50% 50%; }
  .relationship-spec { grid-column: 1 / -1; border-top: 1px solid var(--line); }
}

@media (max-width: 680px) {
  .site-header { min-height: 64px; }
  .brand { font-size: 22px; }
  .brand img { width: 28px; height: 28px; }
  .text-link { gap: 6px; font-size: 11px; }
  .text-link .label-full { display: none; }
  .text-link .label-short { display: inline; }
  .text-link .arrow-icon { width: 15px; height: 15px; }
  .product-proof { display: grid; grid-template-columns: 1fr; grid-template-rows: minmax(570px, auto) 330px auto; min-height: 0; }
  .hero-copy { min-height: 0; padding-top: 56px; padding-bottom: 24px; border-right: 0; border-bottom: 1px solid var(--line); }
  h1 { font-size: clamp(54px, 16.4vw, 64px); }
  .hero-copy > p { margin-top: 24px; font-size: 16px; }
  .hero-actions { padding-top: 24px; }
  .primary-action { min-height: 62px; }
  .product-stage { min-height: 330px; grid-row: 2; }
  .climbing-material { object-position: 67% center; opacity: .58; }
  .device-cluster { width: 90%; left: 5%; bottom: -5%; transform-origin: bottom center; }
  .phase-rail span { min-height: 62px; padding: 0 13px; gap: 8px; }
  .phase-rail b { font-size: 15px; }
  .phase-rail i { font-size: 11px; }
  .catalog-intro { grid-template-columns: 1fr; gap: 40px; }
  .haptic-relationship { display: block; }
  .haptic-relationship > * { border-right: 0; border-bottom: 1px solid var(--line); }
  .hand-diagram { padding-top: 20px; padding-bottom: 20px; }
  .catalog-row, .hang-row { display: flex; flex-direction: column; }
  .catalog-row > *, .hang-row > * { border-right: 0; border-bottom: 1px solid var(--line); }
  .sequence-number { padding-bottom: 4px; order: 1; border-bottom: 0; }
  .sequence-copy { order: 2; padding-top: 10px; }
  .catalog-screen, .live-demo, .next-grip-spec { order: 3; min-height: auto; padding: 40px var(--pad); }
  .signal-notation { order: 4; min-height: auto; padding: 40px var(--pad); }
  .plan-row { grid-template-columns: 48px 1fr auto; font-size: 14px; gap: 12px; }
  .sim-controls { grid-template-columns: 1fr; gap: 20px; }
  .health-context, .evidence { display: block; min-height: 0; }
  .health-context > *, .evidence > * { border-right: 0; border-bottom: 1px solid var(--line); min-height: 0; }
  .health-copy { min-height: auto; padding-bottom: 40px; }
  .health-screen { min-height: auto; padding-bottom: 40px; }
  .beta-qr-specimen { display: none; }
  .beta-action { min-height: 84px; font-size: clamp(24px, 6.4vw, 34px); }
  .beta-action .arrow-icon { width: 24px; height: 24px; }
  .beta-notes { display: grid; grid-template-columns: 1fr 1fr; }
  .beta-notes span { grid-column: 1 / -1; }
  .site-footer { 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; }
  .product-stage, .device-cluster, .phase-rail { animation: none !important; }
  .motion-ready .climbing-material { clip-path: none; filter: none; }
  .motion-ready .device-cluster img { transform: none; filter: drop-shadow(0 20px 26px rgba(0,0,0,.13)); }
  .motion-active .phase-rail span { animation: none; }
}

/* Legal and support documents */
.legal-container {
  max-width: 760px;
  margin: 0 auto;
  padding: clamp(64px, 8vw, 110px) var(--pad) clamp(70px, 8vw, 120px);
}
.legal-header { margin-bottom: 56px; padding-bottom: 28px; border-bottom: 1px solid var(--line); }
.legal-title { font-family: var(--display); font-size: clamp(42px, 6vw, 68px); font-weight: 750; line-height: .92; letter-spacing: -.04em; }
.legal-meta { margin-top: 16px; font-size: 11px; font-weight: 700; letter-spacing: .08em; text-transform: uppercase; }
.legal-section { margin-bottom: 48px; }
.legal-section h2 { font-family: var(--display); font-size: clamp(26px, 3vw, 38px); font-weight: 750; line-height: 1; letter-spacing: -.04em; }
.legal-section h3 { margin-top: 34px; font-family: var(--display); font-size: 19px; letter-spacing: -.03em; }
.legal-section p, .legal-section li { max-width: 620px; margin-top: 18px; font-size: 16px; line-height: 1.6; }
.legal-section ul { padding-left: 20px; margin: 0; }
.legal-section li { margin-top: 12px; }
.legal-section a { color: var(--ink); text-decoration-thickness: 1px; text-underline-offset: 4px; overflow-wrap: anywhere; }
.contact-box { margin: 32px 0; padding: 24px; border: 1px solid var(--line); background: #ecebe7; }
.contact-box p { margin-top: 0; }
.contact-box a { font-weight: 700; }
.lang-section { display: none; }
.lang-section.active { display: block; }