/* ============================================================
   THE UNITS COMPANY — Neo-Brutalist + Monochrome Minimal
   Black-dominant. Cool accents sparingly. Product-first.
   ============================================================ */

:root {
  --black: #000000;
  --white: #ffffff;
  --zinc-100: #f4f4f5;
  --zinc-300: #d4d4d8;
  --zinc-400: #a1a1aa;
  --zinc-500: #71717a;
  --zinc-800: #27272a;
  --orange-soft: #ffe0bf;
  --orange-mid: #f6a15b;
  --orange-border: rgba(196, 94, 26, 0.55);
  --orange: #e8792f;
  --orange-deep: #c45e1a;
  --badge-grad: linear-gradient(135deg, #ffe0bf 0%, #f6a15b 55%, #e8792f 100%);
  --blue: #0071e3;
  --blue-hover: #0077ed;
  --blue-active: #006edb;

  --bg: var(--black);
  --fg: var(--white);
  --muted: var(--zinc-800);
  --muted-fg: var(--zinc-400);
  --border: rgba(255, 255, 255, 0.18);
  --border-strong: var(--white);
  --accent: var(--orange);

  --radius: 14px;
  --radius-md: 18px;
  --radius-badge: 980px;
  --radius-pill: 980px;
  --border-w: 1.5px;
  --shadow: 3px 3px 0 0 var(--white);
  --shadow-dark: 3px 3px 0 0 var(--black);

  --ease: cubic-bezier(0.22, 1, 0.36, 1);
  --mid: 280ms;
  --nav-h: 68px;
  --font: "Inter", system-ui, -apple-system, sans-serif;
  --font-head: "Unbounded", "Inter", system-ui, sans-serif;
  --max: 72rem;
  --pad-x: clamp(1.15rem, 4vw, 2rem);
  --section-y: clamp(2.75rem, 5vw, 5.5rem);
}

*,
*::before,
*::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  background: var(--black);
  overflow-x: hidden;
  scroll-behavior: auto;
  scrollbar-width: thin;
  scrollbar-color: #ffffff #000000;
}

/* Site-wide black & white scrollbars */
* {
  scrollbar-width: thin;
  scrollbar-color: #ffffff #000000;
}

*::-webkit-scrollbar {
  width: 10px;
  height: 10px;
}

*::-webkit-scrollbar-track {
  background: #000000;
}

*::-webkit-scrollbar-thumb {
  background: #ffffff;
  border: 2px solid #000000;
  border-radius: 999px;
}

*::-webkit-scrollbar-thumb:hover {
  background: #e8e8e8;
}

*::-webkit-scrollbar-corner {
  background: #000000;
}

html.lenis,
html.lenis body {
  height: auto;
}

.lenis.lenis-smooth {
  scroll-behavior: auto !important;
}

body {
  font-family: var(--font);
  font-weight: 500;
  color: var(--fg);
  background: var(--black);
  line-height: 1.5;
  overflow-x: hidden;
  cursor: none;
}

body.menu-open,
body.cart-open,
body.checkout-open {
  overflow: hidden;
}

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

button,
a {
  font-family: inherit;
  cursor: none;
}

button {
  background: none;
  border: 0;
  color: inherit;
}

ul,
ol {
  list-style: none;
}

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

h1,
h2,
h3,
.signature-word,
.quote-line,
.exam-fn,
.exam-index,
.exam-heading,
.product-story-title,
.why-title,
.price {
  font-family: var(--font-head);
  font-weight: 700;
  letter-spacing: -0.04em;
  line-height: 0.95;
}

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

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

.section-soft {
  background: var(--zinc-100);
  color: var(--black);
}

/* ---- Scale product asset ---- */
.scale-asset {
  width: min(90vw, 100%);
  max-width: 100%;
  height: auto;
  aspect-ratio: 170 / 42.5;
  object-fit: contain;
  object-position: center;
  display: block;
  transform-origin: center center;
}

/* ---- Type utilities ---- */
.eyebrow,
.kicker,
.menu-meta,
.feature-id,
.product-index,
.footer-col-title,
.nav-center a,
.nav-cart,
.nav-order,
.hero-scroll,
.exam-steps,
.drawer-sub {
  font-family: var(--font);
  font-weight: 600;
  font-size: 0.7rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.eyebrow,
.badge {
  display: inline-block;
  margin-bottom: clamp(0.65rem, 1.5vw, 0.95rem);
  padding: 0.4rem 0.95rem;
  border: 1px solid var(--orange-border);
  border-radius: var(--radius-badge);
  background: var(--badge-grad);
  color: #111111;
  font-family: var(--font);
  font-weight: 700;
  font-size: 0.7rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  line-height: 1.2;
  box-shadow: 0 4px 14px rgba(0, 0, 0, 0.18);
}

.badge--tilt {
  transform: rotate(-3deg);
  transform-origin: left center;
}

.soon-tag,
.soon-tag.badge {
  display: inline-block;
  margin: 0.55rem 0 1rem;
  padding: 0.4rem 0.95rem;
  border: 1px solid var(--white);
  border-radius: var(--radius-badge);
  background: var(--white);
  color: var(--black);
  font-family: var(--font);
  font-weight: 700;
  font-size: 0.7rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  line-height: 1.2;
  box-shadow: none;
}

.section-light .soon-tag,
.section-light .soon-tag.badge,
.section-soft .soon-tag,
.section-soft .soon-tag.badge {
  border-color: var(--black);
  background: var(--black);
  color: var(--white);
}

.kicker {
  margin-bottom: 0.75rem;
  color: var(--zinc-500);
}

.section-light .kicker {
  color: var(--zinc-500);
}

.lead {
  font-size: clamp(1rem, 1.6vw, 1.2rem);
  line-height: 1.5;
  max-width: 36ch;
  font-weight: 400;
  color: var(--zinc-400);
}

.section-light .lead {
  color: var(--zinc-500);
}

.section-title {
  font-size: clamp(1.8rem, 4vw, 3rem);
  margin-bottom: 1.5rem;
}

/* ---- Inverting cursor (difference blend) ---- */
.cursor {
  position: fixed;
  top: 0;
  left: 0;
  z-index: 10000;
  width: 17px;
  height: 20px;
  pointer-events: none;
  mix-blend-mode: difference;
  opacity: 0;
  will-change: transform;
}

.cursor.is-ready {
  opacity: 1;
}

.cursor img {
  width: 17px;
  height: 20px;
  display: block;
  image-rendering: -webkit-optimize-contrast;
  image-rendering: crisp-edges;
}

@media (pointer: coarse) {
  .cursor {
    display: none;
  }
  body,
  button,
  a,
  .btn,
  .nav-cart,
  .nav-order {
    cursor: auto;
  }
}

/* ---- Buttons ---- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  min-height: 44px;
  padding: 0.7rem 1.35rem;
  border: 0;
  border-radius: var(--radius-pill);
  font-weight: 600;
  letter-spacing: -0.01em;
  font-size: 0.95rem;
  text-transform: none;
  transition: transform var(--mid) var(--ease), background var(--mid) var(--ease),
    color var(--mid) var(--ease), opacity var(--mid) var(--ease), filter var(--mid) var(--ease);
}

.btn .arrow {
  display: inline-grid;
  place-items: center;
  width: auto;
  height: auto;
  border: 0;
  border-radius: 0;
  font-size: 1rem;
  color: inherit;
  transition: transform var(--mid) var(--ease);
}

.btn:hover .arrow {
  transform: translateX(3px);
}

.btn:active {
  transform: scale(0.97);
}

.btn-solid {
  background: var(--blue);
  color: var(--white);
  border-color: transparent;
}

.section-light .btn-solid {
  background: var(--blue);
  color: var(--white);
  border-color: transparent;
}

.btn-solid:hover {
  transform: translateY(-1px);
  background: var(--blue-hover);
  color: var(--white);
  border-color: transparent;
  filter: brightness(1.05);
}

.section-light .btn-solid:hover {
  background: var(--blue-hover);
  color: var(--white);
  border-color: transparent;
}

.btn-ghost {
  background: transparent;
  color: inherit;
  border: 1px solid rgba(255, 255, 255, 0.35);
}

.btn-ghost:hover {
  transform: translateY(-1px);
  border-color: rgba(255, 255, 255, 0.65);
  color: var(--white);
  background: rgba(255, 255, 255, 0.06);
}

.section-light .btn-ghost {
  border-color: rgba(0, 0, 0, 0.2);
}

.section-light .btn-ghost:hover {
  border-color: rgba(0, 0, 0, 0.45);
  color: var(--black);
  background: rgba(0, 0, 0, 0.04);
}

.btn-lg {
  min-height: 50px;
  padding: 0.85rem 1.6rem;
  font-size: 1rem;
}

.btn-block {
  width: 100%;
}

.btn:focus-visible,
.nav-order:focus-visible {
  outline: 2px solid var(--blue);
  outline-offset: 3px;
}

.nav-center a:focus-visible,
.nav-cart:focus-visible,
.nav-burger:focus-visible,
.nav-logo:focus-visible,
.footer a:focus-visible,
.footer button:focus-visible {
  outline: 2px solid rgba(255, 255, 255, 0.55);
  outline-offset: 3px;
}

.section-light .btn:focus-visible {
  outline-color: var(--blue);
}

/* Kill browser blue tap / focus rings */
button,
a,
input,
textarea,
select {
  -webkit-tap-highlight-color: transparent;
}

button:focus:not(:focus-visible),
a:focus:not(:focus-visible) {
  outline: none;
  box-shadow: none;
}

.cta-row {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  margin-top: 1.25rem;
}

/* ---- Loader ---- */
.loader {
  position: fixed;
  inset: 0;
  z-index: 9999;
  background: #000000;
  display: grid;
  place-items: center;
  overflow: hidden;
  padding: clamp(1rem, 4vw, 2.5rem);
  box-sizing: border-box;
}

.loader-stage {
  position: relative;
  width: min(82vw, 58rem);
  max-width: 100%;
  display: grid;
  place-items: center;
}

.loader-paper {
  width: 100%;
  height: auto;
  max-height: min(78vh, 42rem);
  object-fit: contain;
  display: block;
  pointer-events: none;
  user-select: none;
}

.loader-content {
  position: absolute;
  inset: 0;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: clamp(0.85rem, 2vw, 1.35rem);
  padding: 12% 14%;
  box-sizing: border-box;
  pointer-events: none;
}

.loader-logo {
  width: min(48%, 17.5rem);
  max-width: 100%;
  height: auto;
  display: block;
  object-fit: contain;
}

.loader-label {
  font-family: var(--font);
  font-size: clamp(0.62rem, 1.1vw, 0.78rem);
  font-weight: 600;
  letter-spacing: 0.42em;
  text-transform: uppercase;
  color: #111111;
  margin: 0;
  padding-left: 0.42em;
  line-height: 1;
}

@media (max-width: 767px) {
  .loader {
    padding: 1.25rem;
  }

  .loader-stage {
    width: min(92vw, 26rem);
  }

  .loader-paper {
    max-height: min(72vh, 28rem);
  }

  .loader-content {
    gap: 0.85rem;
    padding: 14% 12%;
  }

  .loader-logo {
    width: min(58%, 13rem);
  }

  .loader-label {
    font-size: 0.62rem;
    letter-spacing: 0.36em;
    padding-left: 0.36em;
  }
}

/* ---- Nav ---- */
.nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1250;
  height: var(--nav-h);
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  align-items: center;
  padding: 0 var(--pad-x);
  background: #000000;
  border-bottom: var(--border-w) solid rgba(255, 255, 255, 0.14);
  color: var(--white);
  transition: height var(--mid) var(--ease);
}

.nav.is-scrolled {
  height: 56px;
}

.nav-logo {
  justify-self: start;
  display: inline-flex;
  line-height: 0;
}

.nav-logo-img {
  height: clamp(1.5rem, 3vw, 1.85rem);
  width: auto;
  max-width: 8.5rem;
  object-fit: contain;
}

.nav.is-scrolled .nav-logo-img {
  height: 1.45rem;
}

.nav-center {
  display: flex;
  gap: 0.15rem;
}

.nav-center a {
  padding: 0.4rem 0.75rem;
  border-bottom: 2px solid transparent;
  transition: border-color var(--mid) var(--ease), color var(--mid) var(--ease);
}

.nav-center a:hover,
.nav-center a:focus-visible {
  color: var(--white);
  border-bottom-color: var(--white);
  outline: none;
}

.nav-right {
  justify-self: end;
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.nav-cart,
.nav-order {
  border: 1px solid rgba(255, 255, 255, 0.28);
  border-radius: var(--radius-pill);
  padding: 0.4rem 0.95rem;
  min-height: 36px;
  background: transparent;
  color: var(--white);
  font-size: 0.7rem;
  transition: background var(--mid) var(--ease), border-color var(--mid) var(--ease),
    opacity var(--mid) var(--ease), filter var(--mid) var(--ease);
}

.nav-order {
  background: var(--blue);
  color: var(--white);
  border-color: transparent;
}

.nav-cart:hover {
  border-color: rgba(255, 255, 255, 0.5);
  opacity: 0.9;
}

.nav-order:hover {
  background: var(--blue-hover);
  color: var(--white);
  border-color: transparent;
  filter: brightness(1.05);
}

.nav-cart span {
  margin-left: 0.35rem;
  display: inline-flex;
  min-width: 1.15rem;
  height: 1.15rem;
  align-items: center;
  justify-content: center;
  background: var(--blue);
  color: var(--white);
  border-radius: 50%;
  font-size: 0.65rem;
}

.nav-burger {
  display: none;
  width: 42px;
  height: 42px;
  position: relative;
  border: var(--border-w) solid rgba(255, 255, 255, 0.35);
  border-radius: var(--radius);
}

.nav-burger span {
  position: absolute;
  left: 10px;
  right: 10px;
  height: 1.5px;
  background: var(--white);
}

.nav-burger span:first-child {
  top: 15px;
}

.nav-burger span:last-child {
  bottom: 15px;
}

/* ---- Menu ---- */
.menu {
  position: fixed;
  inset: 0;
  z-index: 1200;
  background: var(--black);
  color: var(--white);
  clip-path: inset(0 0 100% 0);
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  padding: calc(var(--nav-h) + 1.5rem) var(--pad-x) 2rem;
}

.menu-inner {
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.menu-inner a,
.menu-inner button {
  font-size: clamp(1.8rem, 8vw, 3rem);
  font-weight: 800;
  letter-spacing: -0.04em;
  text-align: left;
  width: fit-content;
}

.menu-inner a:hover,
.menu-inner button:hover {
  color: var(--zinc-300);
}

.menu-foot {
  color: var(--zinc-400);
  font-size: 0.95rem;
}

/* ---- Hero ---- */
.hero {
  min-height: 100svh;
  min-height: 100dvh;
  box-sizing: border-box;
  padding:
    calc(var(--nav-h) + clamp(0.65rem, 2vh, 1.35rem))
    var(--pad-x)
    clamp(1.5rem, 3.5vh, 2.5rem);
  display: grid;
  grid-template-columns: minmax(0, 0.95fr) minmax(0, 1.2fr);
  gap: clamp(1rem, 3vw, 2.75rem);
  align-items: center;
  align-content: center;
  background: var(--black);
  color: var(--white);
  position: relative;
  overflow: hidden;
  isolation: isolate;
}

.hero-grid-wrap {
  position: absolute;
  inset: 0;
  z-index: 0;
  pointer-events: none;
  overflow: hidden;
  perspective: 900px;
  perspective-origin: 50% 40%;
}

.hero-grid {
  position: absolute;
  inset: -45%;
  z-index: 0;
  pointer-events: none;
  background-color: transparent;
  background-image:
    linear-gradient(rgba(255, 255, 255, 0.7) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.7) 1px, transparent 1px);
  background-size: 64px 64px;
  background-position: 0 0;
  opacity: 0.22;
  transform: rotateX(14deg) scale(1.2);
  transform-origin: 50% 20%;
  will-change: transform;
  backface-visibility: hidden;
}

.hero-glow {
  position: absolute;
  width: min(70vw, 520px);
  height: min(70vw, 520px);
  border-radius: 50%;
  z-index: 0;
  pointer-events: none;
  background: radial-gradient(circle, rgba(232, 121, 47, 0.07) 0%, transparent 70%);
  top: 12%;
  right: 4%;
  will-change: transform, opacity;
}

.hero-copy {
  position: relative;
  z-index: 2;
  max-width: min(40rem, 100%);
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 0;
}

.hero-title {
  font-size: clamp(3.5rem, 8vw, 8.5rem);
  margin: 0.15rem 0 0.85rem;
  line-height: 0.86;
  letter-spacing: -0.05em;
}

.hero-title .line {
  display: block;
  white-space: nowrap;
  will-change: transform, opacity;
}

.hero-support {
  font-size: clamp(0.88rem, 0.3vw + 0.8rem, 1.02rem);
  font-weight: 400;
  color: var(--zinc-400);
  margin: 0 0 1.1rem;
  max-width: none;
  line-height: 1.4;
  white-space: nowrap;
}

.hero-tagline {
  font-family: var(--font-head);
  font-size: clamp(1.35rem, 2.4vw, 2.15rem);
  font-weight: 700;
  letter-spacing: -0.03em;
  text-transform: none;
  color: var(--white);
  margin: 0 0 0.45rem;
}

.hero-copy .btn {
  position: relative;
  z-index: 3;
  flex-shrink: 0;
  width: auto;
  min-width: 11.5rem;
  opacity: 1;
}

.hero-visual,
.scale-stage {
  position: relative;
  z-index: 2;
  display: flex;
  align-items: center;
  justify-content: center;
  width: min(100%, 34rem);
  max-width: 100%;
  min-height: 0;
  max-height: min(42vh, 20rem);
  padding: clamp(0.85rem, 1.8vw, 1.35rem);
  border: 1px solid rgba(0, 0, 0, 0.08);
  border-radius: var(--radius-md);
  background: #ffffff;
  box-shadow: 0 20px 60px rgba(0, 0, 0, 0.35), 0 1px 0 rgba(255, 255, 255, 0.6) inset;
  perspective: 1200px;
  overflow: hidden;
  justify-self: center;
}

.scale-animation,
.hero-scale-anim {
  width: min(96%, 32rem);
  max-width: 100%;
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto;
  transform-style: preserve-3d;
  transform-origin: 50% 50%;
  will-change: transform, opacity;
}

.scale-image,
.hero-scale {
  width: 100%;
  max-width: 100%;
  height: auto;
  max-height: min(28vh, 12rem);
  aspect-ratio: auto;
  object-fit: contain;
  object-position: center;
  display: block;
  margin: 0 auto;
  filter: drop-shadow(0 6px 14px rgba(0, 0, 0, 0.12));
}

.hero-scroll {
  position: absolute;
  bottom: 1.15rem;
  right: var(--pad-x);
  display: flex;
  align-items: center;
  gap: 0.6rem;
  z-index: 3;
  color: var(--zinc-400);
}

.hero-scroll i {
  display: block;
  width: 1px;
  height: 22px;
  background: var(--zinc-400);
  transform-origin: top;
}

/* ---- Signature ---- */
.signature {
  padding: var(--section-y) var(--pad-x);
  overflow: hidden;
  border-top: var(--border-w) solid var(--black);
}

.signature-word {
  font-size: clamp(3.5rem, 14vw, 11rem);
  margin: 0.25rem 0 1rem;
  line-height: 0.85;
}

.signature-stage {
  margin-top: 2rem;
  border: var(--border-w) solid var(--black);
  border-radius: var(--radius-md);
  padding: clamp(1.25rem, 3vw, 2rem);
  display: grid;
  place-items: center;
  background: var(--zinc-100);
}

.signature-scale {
  width: min(100%, 52rem);
}

.signature-body {
  max-width: 48ch;
  margin-top: 0.85rem;
}

/* ---- Exam ---- */
.exam {
  border-top: 1px solid rgba(255, 255, 255, 0.1);
}

.exam-pin {
  min-height: 100svh;
  height: 100svh;
  max-height: 100svh;
  padding: calc(var(--nav-h) + clamp(0.65rem, 1.5vw, 1.15rem)) var(--pad-x)
    clamp(0.85rem, 2vw, 1.35rem);
  display: flex;
  flex-direction: column;
  justify-content: flex-start;
  gap: clamp(0.55rem, 1.4vw, 1rem);
  box-sizing: border-box;
  overflow: hidden;
}

.exam-heading {
  font-family: var(--font-head);
  font-size: clamp(2.2rem, 5.5vw, 4.75rem);
  font-weight: 700;
  letter-spacing: -0.055em;
  line-height: 0.92;
  color: var(--white);
  margin: 0;
  max-width: 12ch;
  flex-shrink: 0;
}

.exam-lead {
  font-family: var(--font-head);
  font-size: clamp(0.95rem, 1.6vw, 1.3rem);
  font-weight: 600;
  letter-spacing: -0.02em;
  color: var(--white);
  margin: 0;
  flex-shrink: 0;
}

.exam-intro {
  max-width: 52ch;
  font-size: clamp(0.88rem, 0.3vw + 0.8rem, 0.98rem);
  font-weight: 400;
  color: var(--zinc-400);
  line-height: 1.45;
  margin: 0;
  flex-shrink: 0;
}

.exam-intro strong {
  color: var(--white);
  font-weight: 600;
}

.exam-layout {
  flex: 1 1 auto;
  min-height: 0;
  display: grid;
  grid-template-columns: 1fr 1.25fr;
  gap: clamp(0.85rem, 2vw, 1.35rem);
  align-items: stretch;
}

.exam-copy {
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: var(--radius-md);
  padding: clamp(1.15rem, 2.2vw, 1.5rem);
  background: #0f0f10;
  box-shadow: 0 20px 60px rgba(0, 0, 0, 0.45);
  min-height: 0;
  height: 100%;
  align-self: stretch;
  display: flex;
  flex-direction: column;
  justify-content: center;
  overflow: auto;
}

.exam-copy > * {
  flex-shrink: 0;
}

.exam-index {
  font-size: clamp(1.85rem, 4vw, 3rem);
  font-weight: 800;
  letter-spacing: -0.05em;
  line-height: 1;
  background: var(--badge-grad);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
  margin: 0 0 0.45rem;
}

.exam-fn {
  font-size: clamp(1.35rem, 2.6vw, 2.1rem);
  margin: 0 0 0.45rem;
  color: var(--white);
}

.exam-text {
  color: var(--zinc-400);
  font-weight: 400;
  font-size: clamp(0.88rem, 0.25vw + 0.82rem, 0.98rem);
  line-height: 1.45;
  margin: 0;
}

.exam-extra {
  margin-top: 0.95rem;
  padding-top: 0.95rem;
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  color: var(--zinc-400);
  font-weight: 400;
}

.exam-visual {
  border: 1px solid rgba(255, 255, 255, 0.14);
  border-radius: var(--radius-md);
  padding: clamp(0.75rem, 1.8vw, 1.15rem);
  display: grid;
  place-items: center;
  background: #ffffff;
  box-shadow: 0 20px 60px rgba(0, 0, 0, 0.35);
  min-height: 0;
  height: 100%;
  align-self: stretch;
  overflow: hidden;
}

.exam-visual .exam-feature-img,
.exam-mobile-visual .exam-feature-img {
  grid-area: 1 / 1;
  width: 100%;
  max-width: 100%;
  max-height: 100%;
  height: auto;
  object-fit: contain;
  object-position: center;
  opacity: 1;
}

.exam-feature-img[hidden] {
  display: none !important;
}

.exam-detail-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 0.95rem;
  align-items: start;
}

.exam-detail-copy p {
  font-weight: 400;
  color: var(--zinc-400);
  font-size: 0.95rem;
  line-height: 1.55;
  margin: 0 0 0.75rem;
  max-width: 52ch;
}

.exam-detail-copy p:last-child {
  margin-bottom: 0;
}

.exam-detail-copy strong {
  color: var(--white);
  font-weight: 600;
}

.exam-detail-figure {
  margin: 0;
  border: 1px solid rgba(255, 255, 255, 0.12);
  border-radius: var(--radius-md);
  padding: 0.65rem;
  background: #ffffff;
  overflow: hidden;
}

.exam-detail-img {
  width: 100%;
  height: auto;
  max-height: 11rem;
  object-fit: contain;
  display: block;
}

@media (min-width: 900px) {
  .exam-desktop .exam-detail-grid {
    grid-template-columns: 1fr 0.95fr;
    gap: 1rem;
    align-items: center;
  }

  .exam-desktop .exam-detail-img {
    max-height: 9.5rem;
  }
}

.exam-steps {
  display: flex;
  flex-wrap: nowrap;
  align-items: center;
  justify-content: center;
  gap: clamp(1.25rem, 2vw, 1.75rem);
  padding-top: 0.15rem;
  margin: 0 auto;
  flex-shrink: 0;
  width: auto;
  max-width: 100%;
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
}

.exam-steps li {
  border: 1px solid rgba(255, 255, 255, 0.14);
  border-radius: var(--radius-pill);
  padding: 0.35rem 0.75rem;
  color: var(--zinc-400);
  background: transparent;
  font-size: 0.65rem;
  flex: 0 0 auto;
  white-space: nowrap;
}

.exam-steps li.is-active {
  background: var(--white);
  color: var(--black);
  border-color: var(--white);
}

@media (max-height: 820px) and (min-width: 768px) {
  .exam-pin {
    gap: 0.55rem;
    padding-top: calc(var(--nav-h) + 0.55rem);
    padding-bottom: 0.75rem;
  }

  .exam-heading {
    font-size: clamp(1.9rem, 4.5vw, 3.4rem);
  }

  .exam-lead {
    font-size: clamp(0.88rem, 1.3vw, 1.1rem);
  }

  .exam-intro {
    max-width: none;
  }

  .exam-index {
    font-size: clamp(1.6rem, 3.2vw, 2.4rem);
  }

  .exam-fn {
    font-size: clamp(1.15rem, 2.1vw, 1.7rem);
    margin: 0 0 0.35rem;
  }

  .exam-copy {
    padding: 0.95rem 1rem;
  }

  .exam-visual {
    padding: 0.65rem 0.85rem;
    height: 100%;
    align-self: stretch;
  }
}

/* Mobile THE SCALE story — hidden on desktop */
.exam-mobile {
  display: none;
}


.exam-spec {
  font-family: var(--font-head);
  font-size: clamp(0.95rem, 1.4vw, 1.15rem);
  font-weight: 600;
  letter-spacing: -0.01em;
  color: var(--white);
  margin: 0 0 0.45rem;
}

.exam-copy .product-feature-more {
  margin-top: 0.85rem;
}

.exam-detail.product-feature-detail,
.exam-mobile-feature .product-feature-detail {
  margin-top: 0.95rem;
  padding-top: 0.95rem;
  border-top: 1px solid rgba(255, 255, 255, 0.1);
}

.product-feature-more {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  padding: 0;
  border: none;
  background: transparent;
  color: var(--white);
  font-family: var(--font);
  font-size: 0.7rem;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  cursor: pointer;
  transition: opacity var(--mid) var(--ease);
}

.product-feature-more:hover {
  opacity: 0.72;
}

.product-feature-more .arrow {
  display: inline-block;
  transition: transform var(--mid) var(--ease);
}

.product-feature.is-open .product-feature-more .arrow {
  transform: rotate(90deg);
}

.product-feature-detail[hidden] {
  display: none;
}

.product-feature-detail p {
  font-weight: 400;
  color: var(--zinc-400);
  font-size: 0.95rem;
  line-height: 1.55;
  margin: 0 0 0.75rem;
  max-width: 52ch;
}

.product-feature-detail p:last-child {
  margin-bottom: 0;
}

.product-feature-detail strong {
  color: var(--white);
  font-weight: 600;
}

.product-story-img {
  width: min(100%, 52rem);
  height: auto;
  display: block;
  object-fit: contain;
  object-position: center;
}

.product-story-specs--after {
  padding: 0 var(--pad-x) var(--section-y);
  max-width: var(--max);
  margin: 0 auto;
  border-top: 1px solid rgba(255, 255, 255, 0.12);
  padding-top: 1.25rem;
}

.product-story-specs-line {
  font-family: var(--font-head);
  font-size: clamp(0.95rem, 1.8vw, 1.25rem);
  font-weight: 600;
  letter-spacing: -0.02em;
  color: var(--white);
  margin: 0 0 0.65rem;
}

.product-story-specs-note {
  max-width: 52ch;
  font-size: clamp(0.9rem, 0.35vw + 0.8rem, 1rem);
  font-weight: 400;
  color: var(--zinc-400);
  line-height: 1.55;
  margin: 0;
}

.product-story-specs-note strong {
  color: var(--white);
  font-weight: 600;
}

.exam-mobile-spec {
  font-family: var(--font-head);
  font-size: 0.95rem;
  font-weight: 600;
  color: var(--white);
  margin: 0 0 0.45rem;
}

/* ---- Technical ---- */
.technical {
  padding: var(--section-y) var(--pad-x);
  border-top: var(--border-w) solid var(--black);
}

.technical h2 {
  font-size: clamp(2rem, 5.5vw, 4.2rem);
  margin: 0.35rem 0 0.85rem;
  max-width: 14ch;
}

.blueprint-frame {
  margin-top: 1.75rem;
  border: var(--border-w) solid var(--black);
  border-radius: var(--radius-md);
  padding: clamp(1.25rem, 3vw, 2rem);
  display: grid;
  gap: 1.25rem;
  place-items: center;
  background: var(--zinc-100);
}

.blueprint-img {
  width: min(100%, 48rem);
}

.callout-list {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 0.5rem;
  width: 100%;
  list-style: none;
  margin: 0;
  padding: 0;
}

.callout-list li {
  font-family: var(--font-head);
  font-size: clamp(0.65rem, 0.2vw + 0.6rem, 0.75rem);
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  padding: 0.45rem 0.85rem;
  border: 1px solid rgba(0, 0, 0, 0.12);
  border-radius: var(--radius-pill);
  background: var(--white);
  color: var(--black);
}

/* ---- Launch ---- */
.launch {
  display: grid;
  grid-template-columns: 1fr 1fr;
  border-top: var(--border-w) solid rgba(255, 255, 255, 0.12);
  min-height: auto;
}

.launch-copy {
  padding: var(--section-y) var(--pad-x);
  display: flex;
  flex-direction: column;
  justify-content: center;
  border-right: var(--border-w) solid rgba(255, 255, 255, 0.12);
}

.launch-copy h2 {
  font-size: clamp(1.9rem, 4vw, 3.4rem);
  margin-bottom: 0.85rem;
}

.price {
  font-size: clamp(2rem, 4vw, 3rem);
  font-weight: 800;
  letter-spacing: -0.04em;
  margin-top: 1rem;
}

.price small {
  display: block;
  font-size: 0.7rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  font-weight: 600;
  margin-top: 0.3rem;
  color: var(--zinc-400);
}

.section-light .price small {
  color: var(--zinc-500);
}

.launch-visual {
  display: grid;
  place-items: center;
  padding: clamp(1.5rem, 4vw, 2.5rem);
  background: var(--zinc-800);
}

.launch-visual .scale-asset {
  width: min(100%, 28rem);
}

/* ---- Features ---- */
.features {
  padding: var(--section-y) var(--pad-x);
  border-top: var(--border-w) solid var(--black);
}

.features-lead {
  margin-top: 0.5rem;
}

.feature-row {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1rem;
  margin-top: 1.75rem;
}

.feature-row--five {
  grid-template-columns: repeat(5, 1fr);
}

.feature-block {
  border: 1px solid rgba(0, 0, 0, 0.06);
  border-radius: var(--radius-md);
  padding: 1.5rem 1.15rem 1.25rem;
  background: var(--white);
  position: relative;
  box-shadow: 0 20px 60px rgba(0, 0, 0, 0.08);
  transition: transform var(--mid) var(--ease), box-shadow var(--mid) var(--ease);
}

.feature-block:hover {
  transform: translateY(-3px);
  box-shadow: 0 24px 70px rgba(0, 0, 0, 0.12);
  border-color: rgba(0, 0, 0, 0.08);
}

.feature-id {
  margin-bottom: 0.75rem;
  letter-spacing: 0.08em;
  background: var(--badge-grad);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
  font-weight: 800;
}

.feature-block h3 {
  font-size: clamp(1.2rem, 2.2vw, 1.7rem);
  margin-bottom: 0.45rem;
}

.feature-block p {
  font-weight: 400;
  color: var(--zinc-500);
  font-size: 0.95rem;
}

/* ---- Specs ---- */
.specs {
  padding: var(--section-y) var(--pad-x);
  border-top: 1px solid rgba(255, 255, 255, 0.1);
}

.specs .section-title {
  margin-bottom: 1.75rem;
}

.specs-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 0;
  max-width: var(--max);
  margin: 0;
}

.specs-item {
  padding: 1.35rem 1.15rem;
  border-top: 1px solid rgba(255, 255, 255, 0.12);
  border-right: 1px solid rgba(255, 255, 255, 0.12);
}

.specs-item:nth-child(3n) {
  border-right: none;
}

.specs-item dt {
  font-family: var(--font-head);
  font-size: 0.7rem;
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--zinc-400);
  margin-bottom: 0.45rem;
}

.specs-item dd {
  font-family: var(--font-head);
  font-size: clamp(1.05rem, 1.8vw, 1.35rem);
  font-weight: 600;
  letter-spacing: -0.02em;
  color: var(--white);
  margin: 0;
}

/* ---- How to ---- */
.howto {
  border-top: var(--border-w) solid rgba(255, 255, 255, 0.12);
}

.howto-inner {
  padding: var(--section-y) var(--pad-x);
  max-width: var(--max);
  margin: 0 auto;
}

.howto-inner h2 {
  font-size: clamp(2.2rem, 6vw, 4.5rem);
  margin-bottom: 0.75rem;
}

.howto-lead {
  max-width: 52ch;
  font-size: clamp(0.95rem, 0.35vw + 0.85rem, 1.05rem);
  font-weight: 400;
  color: var(--zinc-400);
  line-height: 1.55;
  margin: 0 0 1.5rem;
}

.howto-video {
  width: 100%;
}

.howto-video-frame {
  position: relative;
  width: 100%;
  aspect-ratio: 16 / 9;
  border: var(--border-w) solid rgba(255, 255, 255, 0.2);
  border-radius: var(--radius-md);
  background: #0f0f10;
  display: grid;
  place-content: center;
  justify-items: center;
  gap: 0.45rem;
  overflow: hidden;
}

.howto-video-frame video {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
  background: #000;
}

.howto-video-label {
  font-family: var(--font-head);
  font-size: clamp(1rem, 2vw, 1.35rem);
  font-weight: 700;
  letter-spacing: -0.02em;
  color: var(--white);
  margin: 0;
}

.howto-video-hint {
  font-size: 0.9rem;
  font-weight: 400;
  color: var(--zinc-400);
  margin: 0;
}

/* ---- Why ---- */
.why {
  padding: var(--section-y) var(--pad-x);
  border-top: var(--border-w) solid var(--black);
  overflow: hidden;
}

.why-title {
  font-size: clamp(2.4rem, 8vw, 5.8rem);
}

.why-title span {
  display: block;
}

.why-copy {
  max-width: none;
  width: 100%;
  margin-top: 1.5rem;
  font-size: 1.05rem;
  font-weight: 400;
  color: var(--zinc-500);
  text-align: justify;
  text-align-last: left;
}

/* ---- Products ---- */
.products {
  padding: var(--section-y) var(--pad-x);
  border-top: var(--border-w) solid rgba(255, 255, 255, 0.12);
  overflow: hidden;
}

.products-head h2 {
  font-size: clamp(2.2rem, 6vw, 4.5rem);
  margin: 0.35rem 0 0.5rem;
}

.products-lead {
  margin-bottom: 1.5rem;
}

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

.product-card {
  background: var(--zinc-800);
  border: var(--border-w) solid rgba(255, 255, 255, 0.16);
  border-radius: var(--radius-md);
  padding: 1rem;
  display: flex;
  flex-direction: column;
  transition: transform var(--mid) var(--ease), border-color var(--mid) var(--ease);
}

.product-card:hover {
  transform: translateY(-4px);
  border-color: rgba(255, 255, 255, 0.45);
}

.product-card--featured {
  grid-column: span 2;
}

.product-visual {
  display: grid;
  place-items: center;
  min-height: 9rem;
  max-height: 12rem;
  background: var(--black);
  border: var(--border-w) solid rgba(255, 255, 255, 0.1);
  border-radius: var(--radius);
  margin-bottom: 0.9rem;
  padding: 0.85rem;
  overflow: hidden;
}

.product-img {
  width: 100%;
  height: 100%;
  max-height: 10rem;
  object-fit: contain;
  object-position: center;
  transition: transform var(--mid) var(--ease);
}

.product-card:hover .product-img {
  transform: scale(1.03);
}

.product-card:hover .product-img.scale-tilt {
  transform: scale(1.03) rotate(-3.5deg);
}

.product-card--featured .product-visual {
  min-height: 10rem;
  max-height: 13rem;
}

.product-visual--gallery {
  display: flex;
  flex-direction: column;
  align-items: stretch;
  justify-content: flex-start;
  gap: 0.55rem;
  min-height: 0;
  max-height: none;
  padding: 0.65rem;
  background: #f4f4f5;
  border-color: rgba(0, 0, 0, 0.08);
}

.product-gallery {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
  width: 100%;
  height: 100%;
}

.product-gallery-stage {
  position: relative;
  display: grid;
  place-items: center;
  width: 100%;
  min-height: 11rem;
  max-height: 14rem;
  padding: 0.5rem;
  border-radius: calc(var(--radius) - 2px);
  background: #ffffff;
  overflow: hidden;
  touch-action: pan-y;
  cursor: none;
  user-select: none;
}

.product-gallery-stage:active {
  cursor: none;
}

.product-visual--portrait.product-visual--gallery .product-gallery-stage {
  aspect-ratio: 3 / 4;
  min-height: 14rem;
  max-height: 18rem;
  height: auto;
}

.product-gallery-main {
  width: 100%;
  height: 100%;
  max-height: 13rem;
  object-fit: contain;
  object-position: center;
  pointer-events: none;
}

.product-visual--portrait.product-visual--gallery .product-gallery-main {
  max-height: none;
}

.product-card:hover .product-gallery-main {
  transform: none;
}

.product-gallery-nav {
  position: absolute;
  top: 50%;
  z-index: 3;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 2rem;
  height: 2rem;
  border: 1px solid rgba(0, 0, 0, 0.16);
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.96);
  color: #111111;
  font-size: 1.15rem;
  line-height: 1;
  cursor: none;
  pointer-events: auto;
  transform: translateY(-50%);
  box-shadow: 0 6px 18px rgba(0, 0, 0, 0.12);
  transition: background var(--mid) var(--ease), border-color var(--mid) var(--ease), color var(--mid) var(--ease);
}

.product-gallery-nav:hover {
  background: #111111;
  color: #ffffff;
  border-color: #111111;
}

.product-gallery-prev {
  left: 0.45rem;
}

.product-gallery-next {
  right: 0.45rem;
}

.product-gallery-count {
  position: absolute;
  left: 50%;
  bottom: 0.45rem;
  z-index: 2;
  min-width: 3.2rem;
  padding: 0.2rem 0.45rem;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.92);
  text-align: center;
  font-size: 0.68rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: #52525b;
  transform: translateX(-50%);
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.08);
}

.product-gallery--multi .product-gallery-stage::after {
  content: none;
}

@media (max-width: 767px) {
  .product-visual--gallery {
    padding: 0.5rem;
  }

  .product-gallery-stage {
    min-height: 12rem;
    max-height: 16rem;
  }

  .product-visual--portrait.product-visual--gallery .product-gallery-stage {
    min-height: 13rem;
    max-height: 17rem;
  }

  .product-gallery-thumb {
    width: 2.1rem;
    height: 2.1rem;
  }
}

.scale-tilt {
  transform: rotate(-3.5deg);
  transform-origin: center center;
}

.product-info h3 {
  font-size: clamp(1.35rem, 2.5vw, 2rem);
  margin: 0.2rem 0 0.35rem;
}

.product-sub {
  font-weight: 400;
  color: var(--zinc-400);
  font-size: 0.9rem;
}

.product-card .price {
  font-size: 1.6rem;
  margin: 0.55rem 0;
}

/* ---- Intellectual Property ---- */
.ip {
  position: relative;
  padding: clamp(4rem, 9vw, 7rem) var(--pad-x);
  border-top: var(--border-w) solid var(--black);
  overflow: hidden;
}

.ip-inner {
  max-width: var(--max);
  margin: 0 auto;
  display: grid;
  gap: clamp(2rem, 5vw, 3.5rem);
}

.ip-intro {
  max-width: 22ch;
}

.ip-title {
  font-size: clamp(2.6rem, 7vw, 5.8rem);
  line-height: 0.9;
  letter-spacing: -0.05em;
  margin: 0.35rem 0 1rem;
}

.ip-lead {
  font-size: clamp(1.05rem, 1.5vw, 1.25rem);
  font-weight: 400;
  font-style: italic;
  color: var(--zinc-500);
  max-width: 28ch;
  line-height: 1.45;
  margin: 0;
}

.ip-stage {
  display: grid;
  grid-template-columns: minmax(0, 1.05fr) minmax(0, 0.95fr);
  gap: clamp(1.25rem, 3vw, 2.5rem);
  align-items: stretch;
}

.ip-card {
  border: 1px solid rgba(0, 0, 0, 0.14);
  border-radius: var(--radius-md);
  background: var(--white);
  padding: clamp(1.5rem, 3.5vw, 2.35rem);
  display: flex;
  flex-direction: column;
  gap: 0;
  box-shadow: 0 18px 50px rgba(0, 0, 0, 0.05);
}

.ip-card-label {
  display: inline-flex;
  align-items: center;
  gap: 0.45rem;
  font-family: var(--font);
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--zinc-500);
  margin: 0 0 1.15rem;
}

.ip-mark {
  color: var(--black);
  font-size: 0.85rem;
  line-height: 1;
}

.ip-card-title {
  font-family: var(--font-head);
  font-size: clamp(1.45rem, 2.8vw, 2rem);
  font-weight: 700;
  letter-spacing: -0.03em;
  margin: 0 0 0.85rem;
}

.ip-card-copy {
  font-size: 0.98rem;
  font-weight: 400;
  color: var(--zinc-500);
  line-height: 1.55;
  margin: 0 0 1.5rem;
  max-width: 34ch;
}

.ip-meta {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1rem 1.5rem;
  margin: 0;
  padding: 1.25rem 0;
  border-top: 1px solid rgba(0, 0, 0, 0.1);
  border-bottom: 1px solid rgba(0, 0, 0, 0.1);
}

.ip-meta-item dt {
  font-family: var(--font);
  font-size: 0.68rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--zinc-500);
  margin-bottom: 0.45rem;
}

.ip-meta-item dd {
  font-family: var(--font-head);
  font-size: clamp(1.05rem, 1.8vw, 1.35rem);
  font-weight: 600;
  letter-spacing: -0.02em;
  color: var(--black);
  margin: 0;
}

.ip-status {
  margin-top: 1.35rem;
}

.ip-status-label {
  font-family: var(--font);
  font-size: 0.68rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--zinc-500);
  margin: 0 0 0.55rem;
}

.ip-status-value {
  display: inline-block;
  margin: 0;
  padding: 0.55rem 0.9rem;
  border: 1px solid rgba(0, 0, 0, 0.18);
  border-radius: var(--radius);
  background: var(--zinc-100);
  font-family: var(--font-head);
  font-size: clamp(0.85rem, 1.2vw, 0.95rem);
  font-weight: 600;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: var(--black);
}

.ip-visual {
  border: 1px solid rgba(0, 0, 0, 0.1);
  border-radius: var(--radius-md);
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.92), rgba(244, 244, 245, 0.95)),
    repeating-linear-gradient(
      90deg,
      transparent,
      transparent 23px,
      rgba(0, 0, 0, 0.035) 23px,
      rgba(0, 0, 0, 0.035) 24px
    );
  display: grid;
  place-items: center;
  padding: clamp(1.5rem, 4vw, 2.5rem);
  min-height: 100%;
  overflow: hidden;
}

.ip-scale {
  width: min(100%, 28rem);
  opacity: 1;
  filter: none;
}

/* ---- Quote ---- */
.quote {
  padding: clamp(3.25rem, 6vw, 5.5rem) var(--pad-x);
  display: flex;
  flex-direction: column;
  gap: clamp(1.5rem, 3vw, 2.5rem);
  border-top: var(--border-w) solid rgba(255, 255, 255, 0.12);
  overflow: hidden;
}

.quote-block {
  display: flex;
  flex-direction: column;
  gap: 0.15em;
}

.quote-line {
  display: block;
  font-size: clamp(1.75rem, 6.5vw, 4.8rem);
  font-weight: 800;
  letter-spacing: -0.04em;
  line-height: 1.05;
  max-width: 14ch;
  color: var(--white);
  opacity: 1;
}

.quote-b .quote-line {
  color: var(--zinc-400);
}

.quote-b .quote-line:last-child {
  color: var(--orange);
}

/* ---- Final CTA ---- */
.final-cta {
  min-height: auto;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: var(--section-y) var(--pad-x);
  border-top: var(--border-w) solid var(--black);
}

.final-cta h2 {
  font-size: clamp(2rem, 5.5vw, 4rem);
  margin-bottom: 0.85rem;
}

.final-cta p {
  margin-bottom: 1.35rem;
  font-weight: 400;
  color: var(--zinc-500);
}

.final-cta .btn {
  position: relative;
  z-index: 2;
  opacity: 1;
}

/* ---- Footer ---- */
.footer {
  background: var(--black);
  color: var(--white);
  padding: 3.5rem 0 0;
  border-top: var(--border-w) solid rgba(255, 255, 255, 0.14);
  overflow: hidden;
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.35fr 1fr 1fr 1fr;
  gap: 1.75rem;
  padding: 0 var(--pad-x) 2.5rem;
  max-width: var(--max);
  margin: 0 auto;
  width: 100%;
}

.footer-tag {
  margin: 0 0 1.15rem;
  font-weight: 400;
  color: var(--zinc-400);
}

.footer-brand .footer-col-title {
  margin-bottom: 0.55rem;
}

.footer-contact,
.footer ul {
  display: flex;
  flex-direction: column;
  gap: 0.45rem;
  font-weight: 400;
  color: var(--zinc-400);
}

.footer-col-title {
  margin-bottom: 0.75rem;
  color: var(--white);
}

.footer a,
.footer button {
  width: fit-content;
  text-align: left;
  font-size: inherit;
  transition: color var(--mid) var(--ease);
}

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

.footer-wordmark {
  width: 100%;
  max-width: 100%;
  margin: 0;
  padding: clamp(1.25rem, 3vw, 2rem) clamp(0.75rem, 2.5vw, 1.5rem) clamp(0.5rem, 1.5vw, 1rem);
  border-top: var(--border-w) solid rgba(255, 255, 255, 0.18);
  line-height: 0;
  overflow: hidden;
  display: flex;
  justify-content: center;
  align-items: center;
  box-sizing: border-box;
}

.footer-units-img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  margin: 0 auto;
  object-fit: contain;
  object-position: center;
  /* Full-bleed brand mark — large but never causes horizontal scroll */
  max-height: none;
}

.footer-end {
  display: flex;
  justify-content: center;
  padding: 1rem var(--pad-x) 1.25rem;
  border-top: var(--border-w) solid rgba(255, 255, 255, 0.18);
}

.footer-copyright {
  font-size: 0.72rem;
  letter-spacing: 0.04em;
  font-weight: 400;
  color: var(--zinc-500);
  text-align: center;
}

/* ---- Overlay / Cart / Checkout ---- */
.overlay {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.55);
  z-index: 1200;
  opacity: 0;
  pointer-events: none;
  transition: opacity var(--mid) var(--ease);
}

body.cart-open .overlay,
body.checkout-open .overlay {
  opacity: 1;
  pointer-events: auto;
}

.cart-drawer {
  position: fixed;
  top: 0;
  right: 0;
  width: min(400px, 100%);
  height: 100%;
  background: var(--black);
  color: var(--white);
  z-index: 1300;
  transform: translateX(104%);
  transition: transform var(--mid) var(--ease);
  display: flex;
  flex-direction: column;
  border-left: var(--border-w) solid rgba(255, 255, 255, 0.18);
}

body.cart-open .cart-drawer {
  transform: translateX(0);
}

.drawer-head,
.drawer-foot {
  padding: 1.1rem 1.2rem;
  border-bottom: var(--border-w) solid rgba(255, 255, 255, 0.14);
}

.drawer-foot {
  border-bottom: 0;
  border-top: var(--border-w) solid rgba(255, 255, 255, 0.14);
  margin-top: auto;
}

.drawer-head {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.drawer-head button,
.checkout-close {
  font-size: 1.5rem;
  line-height: 1;
  width: 2rem;
  height: 2rem;
}

.drawer-body {
  padding: 1rem 1.2rem;
  overflow-x: hidden;
  overflow-y: auto;
  flex: 1;
  -webkit-overflow-scrolling: touch;
  overscroll-behavior: contain;
}

.drawer-sub {
  display: flex;
  justify-content: space-between;
  margin-bottom: 0.75rem;
  font-size: 0.8rem;
}

.drawer-note {
  font-size: 0.8rem;
  color: var(--zinc-400);
  margin-bottom: 0.85rem;
  font-weight: 400;
}

.cart-line {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 0.5rem;
  padding: 0.85rem 0;
  border-bottom: var(--border-w) solid rgba(255, 255, 255, 0.1);
}

.cart-empty {
  color: var(--zinc-400);
  font-weight: 400;
}

.checkout {
  position: fixed;
  inset: 0;
  z-index: 1400;
  display: grid;
  place-items: center;
  padding: 1rem;
  opacity: 0;
  pointer-events: none;
  transition: opacity var(--mid) var(--ease);
}

body.checkout-open .checkout {
  opacity: 1;
  pointer-events: auto;
}

.checkout-panel {
  width: min(480px, 100%);
  background: var(--black);
  color: var(--white);
  border: var(--border-w) solid rgba(255, 255, 255, 0.2);
  border-radius: var(--radius-md);
  padding: 1.5rem;
  position: relative;
  max-height: min(90vh, 100%);
  overflow-x: hidden;
  overflow-y: auto;
  -webkit-overflow-scrolling: touch;
  overscroll-behavior: contain;
  touch-action: pan-y;
}

@media (max-width: 430px) {
  .checkout {
    padding: 0.5rem;
    align-items: stretch;
  }

  .checkout-panel {
    width: 100%;
    max-height: 100dvh;
    border-radius: var(--radius);
    padding: 1.15rem 1rem 1.35rem;
  }
}

.checkout-close {
  position: absolute;
  top: 0.75rem;
  right: 0.85rem;
}

.checkout label {
  display: flex;
  flex-direction: column;
  gap: 0.35rem;
  margin-bottom: 0.85rem;
  font-size: 0.8rem;
  font-weight: 600;
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

.checkout input,
.checkout textarea,
.checkout select {
  font-family: inherit;
  font-size: 1rem;
  font-weight: 500;
  padding: 0.7rem 0.8rem;
  border: var(--border-w) solid rgba(255, 255, 255, 0.25);
  background: var(--zinc-800);
  color: var(--white);
  border-radius: var(--radius);
  min-height: 2.9rem;
}

.checkout select {
  appearance: none;
  background-image: linear-gradient(45deg, transparent 50%, currentColor 50%),
    linear-gradient(135deg, currentColor 50%, transparent 50%);
  background-position: calc(100% - 1.1rem) calc(50% - 0.15rem), calc(100% - 0.75rem) calc(50% - 0.15rem);
  background-size: 0.35rem 0.35rem, 0.35rem 0.35rem;
  background-repeat: no-repeat;
  padding-right: 2rem;
}

.checkout input:focus,
.checkout textarea:focus,
.checkout select:focus {
  outline: none;
  border-color: rgba(255, 255, 255, 0.55);
}

.checkout input.is-invalid,
.checkout textarea.is-invalid,
.checkout select.is-invalid {
  border-color: #f87171;
}

.field-error {
  display: block;
  margin-top: 0.25rem;
  font-size: 0.72rem;
  font-weight: 500;
  letter-spacing: 0.02em;
  text-transform: none;
  color: #f87171;
}

.field-error[hidden] {
  display: none;
}

.delivery-mode {
  border: none;
  margin: 0 0 0.85rem;
  padding: 0;
}

.delivery-mode legend {
  margin-bottom: 0.55rem;
  font-size: 0.8rem;
  font-weight: 600;
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

.delivery-option {
  display: flex;
  flex-direction: row;
  align-items: center;
  gap: 0.65rem;
  margin-bottom: 0.55rem;
  font-size: 0.92rem;
  font-weight: 500;
  letter-spacing: 0;
  text-transform: none;
  cursor: pointer;
}

.delivery-option input[type="radio"] {
  width: 1.05rem;
  height: 1.05rem;
  min-height: 0;
  padding: 0;
  margin: 0;
  accent-color: #e8792f;
  flex-shrink: 0;
}

.checkout-fields {
  overflow: hidden;
  max-height: 0;
  opacity: 0;
  margin: 0;
  visibility: hidden;
  transition: max-height var(--mid) var(--ease), opacity var(--mid) var(--ease),
    margin var(--mid) var(--ease), visibility var(--mid) var(--ease);
}

.checkout-fields.is-visible {
  max-height: 28rem;
  opacity: 1;
  margin-bottom: 0.25rem;
  visibility: visible;
}

.delivery-note {
  margin: 0 0 0.85rem;
  font-size: 0.8rem;
  font-weight: 500;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: var(--zinc-400);
}

/* ---- Responsive ---- */
@media (max-width: 1024px) {
  :root {
    --nav-h: 60px;
    --section-y: clamp(2.75rem, 7vw, 4.5rem);
  }

  .hero,
  .exam-layout,
  .launch,
  .ip-stage,
  .footer-grid,
  .feature-row,
  .feature-row--five,
  .specs-grid,
  .product-grid {
    grid-template-columns: 1fr 1fr;
  }

  .specs-item:nth-child(3n) {
    border-right: 1px solid rgba(255, 255, 255, 0.12);
  }

  .specs-item:nth-child(2n) {
    border-right: none;
  }

  .product-card--featured {
    grid-column: span 2;
  }

  .nav-center {
    display: none;
  }

  .nav {
    grid-template-columns: 1fr auto;
  }

  .nav-burger {
    display: block;
  }

  .nav-order {
    display: none;
  }

  .hero {
    align-items: center;
    gap: 1.25rem;
  }

  .scale-animation,
  .hero-scale-anim {
    width: 86%;
  }

  .hero-title {
    font-size: clamp(3.2rem, 9vw, 6.5rem);
  }
}

@media (max-width: 767px) {
  :root {
    --section-y: 2.75rem;
    --pad-x: 1.15rem;
  }

  .hero,
  .feature-row,
  .feature-row--five,
  .specs-grid,
  .product-grid,
  .footer-grid,
  .exam-layout,
  .launch,
  .ip-stage {
    grid-template-columns: 1fr;
  }

  .specs-item {
    border-right: none;
  }

  .product-card--featured {
    grid-column: span 1;
  }

  .hero {
    min-height: 100svh;
    min-height: 100dvh;
    padding: calc(var(--nav-h) + 0.85rem) var(--pad-x) 2.75rem;
    gap: 1.15rem;
    align-content: center;
    align-items: stretch;
  }

  .hero-copy {
    max-width: none;
  }

  .hero-title {
    font-size: clamp(3rem, 13vw, 4.5rem);
    margin-bottom: 0.55rem;
  }

  .hero-title .line {
    white-space: normal;
  }

  .hero-tagline {
    margin-bottom: 0.4rem;
  }

  .hero-support {
    margin-bottom: 0.95rem;
    max-width: none;
    white-space: normal;
  }

  .hero-copy .btn {
    width: auto;
    min-width: 12rem;
  }

  .hero-visual,
  .scale-stage {
    width: min(100%, 22rem);
    max-height: min(34vh, 14rem);
    padding: 0.85rem 1rem;
    justify-self: center;
  }

  .hero-scale {
    max-height: min(20vh, 8.5rem);
  }

  .scale-animation,
  .hero-scale-anim {
    width: 90%;
  }

  .hero-scroll {
    left: 50%;
    right: auto;
    transform: translateX(-50%);
    bottom: 0.85rem;
  }

  .btn {
    width: 100%;
  }

  .hero-copy .btn {
    width: auto;
  }

  .cta-row {
    gap: 0.6rem;
  }

  .signature,
  .technical,
  .features,
  .why,
  .products,
  .ip,
  .final-cta,
  .howto-inner {
    padding-block: 2.75rem;
  }

  .signature-stage,
  .blueprint-frame,
  .howto-video-frame,
  .exam-visual,
  .ip-visual,
  .ip-card {
    padding: 1.15rem;
  }

  .ip-intro {
    max-width: none;
  }

  .ip-meta {
    grid-template-columns: 1fr;
    gap: 1rem;
  }

  .ip-visual {
    min-height: 10rem;
  }

  .launch-copy {
    border-right: 0;
    border-bottom: var(--border-w) solid rgba(255, 255, 255, 0.12);
    padding: 2.75rem var(--pad-x);
  }

  .launch-visual {
    padding: 1.5rem var(--pad-x);
  }

  .feature-row,
  .product-grid {
    gap: 0.85rem;
  }

  .product-visual {
    min-height: 8rem;
    max-height: 10rem;
  }

  .product-visual--gallery {
    min-height: 0;
    max-height: none;
  }

  .product-visual--portrait {
    min-height: 12rem;
    max-height: 16rem;
  }

  .product-visual--portrait.product-visual--gallery {
    min-height: 0;
    max-height: none;
  }

  .quote {
    padding-block: 3.25rem;
    gap: 1.5rem;
  }

  .quote-line {
    max-width: none;
  }

  .footer-grid {
    gap: 1.5rem;
    padding-bottom: 2rem;
  }

  .footer-wordmark {
    padding-inline: 0.85rem;
  }


  .exam-desktop {
    display: none !important;
  }

  .exam-mobile {
    display: block;
  }

  .exam-mobile-intro {
    padding: calc(var(--nav-h) + 1.25rem) var(--pad-x) 1.5rem;
    display: flex;
    flex-direction: column;
    gap: 0.85rem;
  }

  .exam-mobile-intro .exam-heading {
    font-size: clamp(2.6rem, 14vw, 3.6rem);
  }

  .exam-mobile-intro .exam-lead {
    font-size: clamp(1rem, 4.2vw, 1.25rem);
  }

  .exam-mobile-intro .exam-intro {
    max-width: none;
    font-size: 0.95rem;
  }

  .exam-mobile-track {
    position: relative;
  }

  .exam-mobile-pin {
    min-height: 100svh;
    min-height: 100dvh;
    padding: calc(var(--nav-h) + 0.75rem) var(--pad-x) 1.5rem;
    display: flex;
    flex-direction: column;
    justify-content: center;
    gap: 1.35rem;
    box-sizing: border-box;
  }

  .exam-mobile-visual {
    position: relative;
    border: 1px solid rgba(255, 255, 255, 0.14);
    border-radius: var(--radius-md);
    padding: 1.15rem 0.85rem;
    background: #ffffff;
    display: grid;
    place-items: center;
    overflow: hidden;
    box-shadow: 0 16px 40px rgba(0, 0, 0, 0.35);
  }

  .exam-mobile-scale,
  .exam-mobile-visual .exam-feature-img {
    width: 100%;
    max-width: 100%;
    height: auto;
    max-height: min(22vh, 9.5rem);
    display: block;
    will-change: transform;
  }

  .exam-mobile-feature {
    text-align: center;
    padding: 0.25rem 0.15rem 0;
  }

  .exam-mobile-dots {
    display: flex;
    justify-content: center;
    gap: 0.45rem;
    margin-bottom: 0.85rem;
  }

  .exam-mobile-dots span {
    width: 0.45rem;
    height: 0.45rem;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.25);
    transition: background 0.3s ease, transform 0.3s ease;
  }

  .exam-mobile-dots span.is-active {
    background: var(--orange);
    transform: scale(1.2);
  }

  .exam-mobile-count {
    font-family: var(--font);
    font-size: 0.72rem;
    font-weight: 700;
    letter-spacing: 0.14em;
    text-transform: uppercase;
    color: var(--zinc-400);
    margin: 0 0 0.45rem;
  }

  .exam-mobile-title {
    font-family: var(--font-head);
    font-size: clamp(1.6rem, 8vw, 2.2rem);
    font-weight: 700;
    letter-spacing: -0.03em;
    color: var(--white);
    margin: 0 0 0.55rem;
  }

  .exam-mobile-text {
    font-size: 1rem;
    font-weight: 500;
    color: var(--white);
    margin: 0 0 0.45rem;
  }

  .exam-mobile-extra {
    font-size: 0.92rem;
    font-weight: 400;
    color: var(--zinc-400);
    line-height: 1.5;
    margin: 0 auto;
    max-width: 30ch;
  }

  .exam-pin {
    min-height: auto;
    padding: calc(var(--nav-h) + 1rem) var(--pad-x) 2rem;
  }

}

@media (max-width: 480px) {
  :root {
    --section-y: 2.5rem;
    --pad-x: 1rem;
  }

  .hero-title {
    font-size: clamp(2.75rem, 12vw, 3.6rem);
  }

  .scale-animation,
  .hero-scale-anim {
    width: 92%;
  }

  .nav-cart {
    padding: 0.4rem 0.65rem;
  }
}

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

  .loader,
  .hero-scroll i,
  .hero-grid,
  .hero-glow {
    animation: none !important;
  }

  .hero-grid-wrap,
  .hero-grid,
  .hero-glow,
  .hero-scale-anim {
    will-change: auto !important;
    transform: none !important;
  }

  * {
    scroll-behavior: auto !important;
  }
}

/* Mild short-height trim — keep product + CTA visible; do not shrink the headline */
@media (max-height: 700px) and (min-width: 768px) {
  .hero {
    gap: 1rem;
    padding-bottom: 2rem;
  }

  .hero-visual,
  .scale-stage {
    max-height: min(32vh, 16rem);
    padding: 0.7rem 1rem;
  }

  .hero-scale {
    max-height: min(22vh, 10rem);
  }
}