:root {
  --lab-white: #ffffff;
  --lab-paper: #f7f6fb;
  --lab-violet: #eceaf8;
  --lab-violet-2: #ded9f5;
  --lab-indigo: #241b4d;
  --lab-indigo-soft: #3a2d73;
  --lab-gray: #6a6f80;
  --lab-gray-2: #9aa0b0;
  --lab-line: #e0e0ea;
  --lab-line-strong: #c8c7d8;
  --lab-ink: #16142b;
  --lab-code: #5b4bb8;
  --lab-accent: #5b4bb8;
  --lab-flush: rgba(255, 255, 255, 0.72);
  --r-sm: 3px;
  --r-md: 4px;
  --sh-hair: 0 0 0 1px var(--lab-line);
  --sh-frame: 0 1px 0 var(--lab-line), 0 18px 40px -30px rgba(36, 27, 77, 0.45);
  --wrap: 1220px;
  --gap: 24px;
  --pad-sec: clamp(56px, 8vw, 108px);
  --ff-display: "Space Grotesk", "Segoe UI", system-ui, sans-serif;
  --ff-mono: "IBM Plex Mono", ui-monospace, "Consolas", monospace;
  --ease: cubic-bezier(0.22, 0.61, 0.36, 1);
}

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

html {
  scroll-behavior: smooth;
  scroll-padding-top: 92px;
  -webkit-text-size-adjust: 100%;
}

body {
  margin: 0;
  background: var(--lab-white);
  color: var(--lab-ink);
  font-family: var(--ff-display);
  font-size: 16px;
  line-height: 1.65;
  font-weight: 400;
  letter-spacing: -0.005em;
  overflow-x: hidden;
}

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

h1,
h2,
h3 {
  margin: 0;
  font-weight: 500;
  line-height: 1.08;
  letter-spacing: -0.03em;
}

p {
  margin: 0 0 16px;
}

p:last-child {
  margin-bottom: 0;
}

ul,
ol,
dl,
dd {
  margin: 0;
  padding: 0;
}

li {
  list-style: none;
}

a {
  color: var(--lab-accent);
  text-decoration: none;
}

:focus-visible {
  outline: 2px solid var(--lab-accent);
  outline-offset: 3px;
}

.skip-link {
  position: absolute;
  left: 12px;
  top: -60px;
  z-index: 200;
  padding: 10px 16px;
  background: var(--lab-indigo);
  color: #fff;
  font-family: var(--ff-mono);
  font-size: 12px;
  transition: top 0.2s var(--ease);
}

.skip-link:focus {
  top: 12px;
}

.shell {
  width: 100%;
  max-width: var(--wrap);
  margin-inline: auto;
  padding-inline: clamp(18px, 4vw, 40px);
}

.mono-label,
.sec-index,
.panel-idx,
.cause-idx,
.brand-text em,
.comp-tag,
.box-tag,
.contact-card-label,
.footer-h,
.footer-mono,
.mono-note,
.nav-idx {
  font-family: var(--ff-mono);
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  min-height: 46px;
  padding: 12px 22px;
  border: 1px solid var(--lab-line-strong);
  border-radius: var(--r-md);
  background: var(--lab-white);
  color: var(--lab-indigo);
  font-family: var(--ff-mono);
  font-size: 12.5px;
  font-weight: 500;
  letter-spacing: 0.09em;
  text-transform: uppercase;
  cursor: pointer;
  transition: background-color 0.22s var(--ease), color 0.22s var(--ease), border-color 0.22s var(--ease), transform 0.22s var(--ease);
}

.btn:hover {
  border-color: var(--lab-indigo);
  transform: translateY(-1px);
}

.btn-solid {
  background: var(--lab-indigo);
  border-color: var(--lab-indigo);
  color: #fff;
}

.btn-solid:hover {
  background: var(--lab-indigo-soft);
  border-color: var(--lab-indigo-soft);
}

.btn-ghost:hover {
  background: var(--lab-violet);
}

.btn-block {
  width: 100%;
}

.link-arrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  margin-top: 8px;
  font-family: var(--ff-mono);
  font-size: 12.5px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  border-bottom: 1px solid currentColor;
  padding-bottom: 3px;
}

.link-arrow i {
  transition: transform 0.22s var(--ease);
}

.link-arrow:hover i {
  transform: translateX(4px);
}

.lab-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: var(--lab-flush);
  backdrop-filter: blur(10px) saturate(140%);
  -webkit-backdrop-filter: blur(10px) saturate(140%);
  border-bottom: 1px solid var(--lab-line);
}

.header-bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  min-height: 70px;
}

.brand {
  display: flex;
  align-items: center;
  gap: 10px;
  color: var(--lab-indigo);
  flex-shrink: 0;
}

.brand-mark {
  display: grid;
  place-items: center;
  width: 40px;
  height: 40px;
  border: 1px solid var(--lab-line-strong);
  border-radius: var(--r-md);
  color: var(--lab-accent);
  background: var(--lab-white);
}

.brand-text {
  display: flex;
  flex-direction: column;
  line-height: 1.15;
}

.brand-text strong {
  font-size: 17px;
  font-weight: 600;
  letter-spacing: -0.03em;
}

.brand-text em {
  font-style: normal;
  font-size: 10.5px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--lab-gray);
}

.nav-toggle {
  display: none;
  width: 44px;
  height: 44px;
  padding: 0;
  border: 1px solid var(--lab-line-strong);
  border-radius: var(--r-md);
  background: var(--lab-white);
  cursor: pointer;
}

.nav-toggle-bar {
  display: block;
  width: 18px;
  height: 1.5px;
  margin: 4px auto;
  background: var(--lab-indigo);
  transition: transform 0.25s var(--ease), opacity 0.2s var(--ease);
}

.nav-toggle[aria-expanded="true"] .nav-toggle-bar:nth-child(1) {
  transform: translateY(5.5px) rotate(45deg);
}

.nav-toggle[aria-expanded="true"] .nav-toggle-bar:nth-child(2) {
  opacity: 0;
}

.nav-toggle[aria-expanded="true"] .nav-toggle-bar:nth-child(3) {
  transform: translateY(-5.5px) rotate(-45deg);
}

.primary-nav {
  display: flex;
  align-items: center;
  gap: clamp(12px, 2vw, 28px);
}

.nav-list {
  display: flex;
  align-items: center;
  gap: 4px;
}

.nav-link {
  position: relative;
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 8px 10px;
  background: none;
  border: 0;
  border-radius: var(--r-sm);
  color: var(--lab-ink);
  font-family: var(--ff-display);
  font-size: 14.5px;
  cursor: pointer;
  transition: color 0.2s var(--ease), background-color 0.2s var(--ease);
}

.nav-link:hover {
  color: var(--lab-accent);
  background: var(--lab-violet);
}

.nav-idx {
  font-size: 9.5px;
  letter-spacing: 0.1em;
  color: var(--lab-gray-2);
}

.nav-link.is-current {
  color: var(--lab-accent);
}

.has-submenu {
  position: relative;
}

.submenu-caret {
  font-size: 11px;
  transition: transform 0.2s var(--ease);
}

.nav-submenu-btn[aria-expanded="true"] .submenu-caret {
  transform: rotate(180deg);
}

.submenu {
  position: absolute;
  top: calc(100% + 10px);
  left: 0;
  min-width: 232px;
  padding: 6px;
  background: var(--lab-white);
  border: 1px solid var(--lab-line);
  border-radius: var(--r-md);
  box-shadow: 0 20px 44px -30px rgba(36, 27, 77, 0.5);
}

.submenu a {
  display: block;
  padding: 9px 12px;
  border-radius: var(--r-sm);
  color: var(--lab-ink);
  font-size: 14px;
}

.submenu a:hover {
  background: var(--lab-violet);
  color: var(--lab-accent);
}

.nav-cta {
  min-height: 40px;
  padding: 9px 16px;
  font-size: 11.5px;
}

.band {
  padding-block: var(--pad-sec);
  border-bottom: 1px solid var(--lab-line);
}

.band-tint {
  background: var(--lab-paper);
}

.band-outline {
  background: var(--lab-white);
}

.band-contact {
  background: var(--lab-violet);
  border-bottom: 0;
}

.sec-head {
  max-width: 780px;
  margin-bottom: clamp(32px, 4vw, 56px);
}

.sec-index {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 14px;
  font-size: 11px;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--lab-gray);
}

.sec-index span {
  display: inline-grid;
  place-items: center;
  min-width: 30px;
  height: 22px;
  padding-inline: 6px;
  border: 1px solid var(--lab-line-strong);
  border-radius: var(--r-sm);
  color: var(--lab-accent);
  background: var(--lab-white);
}

.sec-title {
  font-size: clamp(28px, 4.2vw, 46px);
  color: var(--lab-indigo);
}

.sec-lede {
  margin-top: 18px;
  color: var(--lab-gray);
  font-size: clamp(15.5px, 1.2vw, 17.5px);
  max-width: 68ch;
}

.hero {
  padding-block: clamp(40px, 6vw, 80px) clamp(48px, 6vw, 88px);
  border-bottom: 1px solid var(--lab-line);
  background:
    linear-gradient(var(--lab-line) 1px, transparent 1px) 0 0 / 100% 64px,
    var(--lab-white);
}

.hero-shell {
  display: grid;
  grid-template-columns: minmax(0, 1.05fr) minmax(0, 0.95fr);
  gap: clamp(28px, 4vw, 64px);
  align-items: center;
}

.eyebrow {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 22px;
  font-family: var(--ff-mono);
  font-size: 11px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--lab-gray);
}

.rule {
  display: block;
  width: 34px;
  height: 1px;
  background: var(--lab-accent);
}

.hero-title {
  font-size: clamp(40px, 7.4vw, 92px);
  font-weight: 500;
  letter-spacing: -0.045em;
  color: var(--lab-indigo);
  text-transform: none;
}

.accent {
  color: var(--lab-accent);
}

.hero-lede {
  margin-top: 26px;
  max-width: 56ch;
  font-size: clamp(15.5px, 1.25vw, 17.5px);
  color: var(--lab-gray);
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 30px;
}

.hero-readout {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 1px;
  margin-top: 40px;
  background: var(--lab-line);
  border: 1px solid var(--lab-line);
  border-radius: var(--r-md);
  overflow: hidden;
}

.hero-readout > div {
  padding: 14px 16px;
  background: var(--lab-white);
}

.hero-readout dt {
  font-family: var(--ff-mono);
  font-size: 10px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--lab-gray-2);
  margin-bottom: 5px;
}

.hero-readout dd {
  margin: 0;
  font-size: 13.5px;
  color: var(--lab-indigo);
  line-height: 1.4;
}

.hero-frame {
  position: relative;
  margin: 0;
  padding: 14px;
  background: var(--lab-white);
  border: 1px solid var(--lab-line-strong);
  border-radius: var(--r-md);
  box-shadow: var(--sh-frame);
}

.corner {
  position: absolute;
  width: 14px;
  height: 14px;
  border: 1px solid var(--lab-accent);
}

.corner.tl {
  top: -5px;
  left: -5px;
  border-right: 0;
  border-bottom: 0;
}

.corner.tr {
  top: -5px;
  right: -5px;
  border-left: 0;
  border-bottom: 0;
}

.corner.bl {
  bottom: -5px;
  left: -5px;
  border-right: 0;
  border-top: 0;
}

.corner.br {
  bottom: -5px;
  right: -5px;
  border-left: 0;
  border-top: 0;
}

.hero-media {
  aspect-ratio: 4 / 4.4;
  overflow: hidden;
  border-radius: var(--r-sm);
  background: var(--lab-violet);
}

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

.hero-caption {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 12px;
  font-family: var(--ff-mono);
  font-size: 11px;
  line-height: 1.5;
  color: var(--lab-gray);
}

.hero-caption span {
  color: var(--lab-accent);
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.spec-tag {
  position: absolute;
  display: flex;
  align-items: center;
  gap: 8px;
  font-family: var(--ff-mono);
  font-size: 10px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--lab-indigo-soft);
  white-space: nowrap;
}

.spec-tag b {
  font-weight: 500;
  padding: 4px 8px;
  background: var(--lab-white);
  border: 1px solid var(--lab-line-strong);
  border-radius: var(--r-sm);
}

.spec-tag .hair {
  display: block;
  height: 1px;
  background: var(--lab-line-strong);
}

.spec-tag-a {
  top: 4%;
  left: -34px;
  transform: translateX(-100%);
  flex-direction: row-reverse;
}

.spec-tag-a .hair {
  width: 34px;
}

.spec-tag-b {
  top: 26%;
  right: -34px;
  transform: translateX(100%);
}

.spec-tag-b .hair {
  width: 34px;
}

.spec-tag-c {
  bottom: 26%;
  left: -34px;
  transform: translateX(-100%);
  flex-direction: row-reverse;
}

.spec-tag-c .hair {
  width: 34px;
}

.spec-tag-d {
  bottom: 6%;
  right: -34px;
  transform: translateX(100%);
}

.spec-tag-d .hair {
  width: 34px;
}

.diag-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1px;
  background: var(--lab-line);
  border: 1px solid var(--lab-line);
  border-radius: var(--r-md);
  overflow: hidden;
}

.panel {
  padding: clamp(22px, 2.6vw, 34px);
  background: var(--lab-white);
}

.panel-idx {
  display: inline-block;
  margin-bottom: 12px;
  padding: 3px 8px;
  border: 1px solid var(--lab-violet-2);
  border-radius: var(--r-sm);
  background: var(--lab-violet);
  color: var(--lab-accent);
  font-size: 10px;
  letter-spacing: 0.14em;
}

.panel h3 {
  font-size: clamp(19px, 1.8vw, 23px);
  color: var(--lab-indigo);
  margin-bottom: 12px;
}

.panel p {
  color: var(--lab-gray);
  font-size: 15px;
}

.mono-note {
  margin-top: 14px !important;
  padding-top: 12px;
  border-top: 1px dashed var(--lab-line-strong);
  font-size: 11.5px;
  letter-spacing: 0.06em;
  color: var(--lab-code) !important;
}

.tick-list {
  margin-top: 16px;
  border-top: 1px solid var(--lab-line);
}

.tick-list li {
  position: relative;
  padding: 9px 0 9px 26px;
  border-bottom: 1px solid var(--lab-line);
  font-size: 14px;
  color: var(--lab-ink);
}

.tick-list li::before {
  content: "";
  position: absolute;
  left: 4px;
  top: 17px;
  width: 8px;
  height: 4px;
  border-left: 1.5px solid var(--lab-accent);
  border-bottom: 1.5px solid var(--lab-accent);
  transform: rotate(-45deg);
}

.tick-list-lg li {
  padding-block: 11px;
  font-size: 15px;
}

.repair-shell {
  display: grid;
  grid-template-columns: minmax(0, 0.8fr) minmax(0, 1.2fr);
  gap: clamp(28px, 4vw, 60px);
  align-items: start;
}

.media-box {
  position: relative;
  margin: 0;
  overflow: hidden;
  border: 1px solid var(--lab-line-strong);
  border-radius: var(--r-md);
  background: var(--lab-violet);
}

.media-box img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.repair-figure {
  aspect-ratio: 1 / 1;
  position: sticky;
  top: 104px;
}

.box-tag {
  position: absolute;
  left: 10px;
  bottom: 10px;
  padding: 5px 9px;
  background: var(--lab-white);
  border: 1px solid var(--lab-line-strong);
  border-radius: var(--r-sm);
  font-size: 10px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--lab-indigo-soft);
}

.spec-block {
  padding: 22px 0;
  border-top: 1px solid var(--lab-line-strong);
}

.spec-block:first-of-type {
  margin-top: 26px;
}

.spec-h {
  font-size: clamp(18px, 1.7vw, 21px);
  color: var(--lab-indigo);
  margin-bottom: 10px;
}

.spec-block p {
  color: var(--lab-gray);
  font-size: 15px;
}

.install-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
  gap: clamp(26px, 3.5vw, 56px);
  align-items: start;
}

.media-tall {
  aspect-ratio: 16 / 12;
}

.step-list {
  border-top: 1px solid var(--lab-line-strong);
}

.step-list li {
  display: grid;
  grid-template-columns: 40px minmax(0, 1fr);
  gap: 18px;
  padding: 22px 0;
  border-bottom: 1px solid var(--lab-line-strong);
}

.step-num {
  display: grid;
  place-items: center;
  width: 34px;
  height: 34px;
  border: 1px solid var(--lab-line-strong);
  border-radius: var(--r-sm);
  font-family: var(--ff-mono);
  font-size: 12px;
  color: var(--lab-accent);
  background: var(--lab-violet);
}

.step-list h3 {
  font-size: 18px;
  color: var(--lab-indigo);
  margin-bottom: 8px;
}

.step-list p {
  color: var(--lab-gray);
  font-size: 15px;
}

.comp-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: var(--gap);
}

.comp-card {
  padding: 24px;
  border: 1px solid var(--lab-line-strong);
  border-radius: var(--r-md);
  background: var(--lab-white);
  transition: border-color 0.22s var(--ease), transform 0.22s var(--ease), box-shadow 0.22s var(--ease);
}

.comp-card:hover {
  border-color: var(--lab-accent);
  transform: translateY(-2px);
  box-shadow: 0 20px 40px -32px rgba(36, 27, 77, 0.55);
}

.comp-tag {
  display: inline-block;
  margin-bottom: 12px;
  font-size: 10px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--lab-accent);
}

.comp-card h3 {
  font-size: 18px;
  color: var(--lab-indigo);
  margin-bottom: 10px;
}

.comp-card p {
  font-size: 14.5px;
  color: var(--lab-gray);
}

.callout {
  margin-top: var(--gap);
  padding: 22px 24px;
  border: 1px solid var(--lab-violet-2);
  border-left: 3px solid var(--lab-accent);
  border-radius: var(--r-md);
  background: var(--lab-paper);
}

.callout-label {
  margin-bottom: 8px;
  font-family: var(--ff-mono);
  font-size: 10.5px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--lab-accent);
}

.callout p {
  color: var(--lab-ink);
  font-size: 15px;
}

.hp-shell {
  display: grid;
  grid-template-columns: minmax(0, 1.35fr) minmax(0, 0.65fr);
  gap: clamp(28px, 4vw, 60px);
  align-items: start;
}

.hp-facts {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1px;
  margin-top: 32px;
  background: var(--lab-line-strong);
  border: 1px solid var(--lab-line-strong);
  border-radius: var(--r-md);
  overflow: hidden;
}

.fact {
  padding: 22px;
  background: var(--lab-white);
}

.fact-num {
  margin-bottom: 10px;
  font-family: var(--ff-mono);
  font-size: 10.5px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--lab-accent);
}

.fact p {
  font-size: 14.5px;
  color: var(--lab-gray);
}

.hp-figure {
  aspect-ratio: 4 / 5;
  position: sticky;
  top: 104px;
}

.cause-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: var(--gap);
}

.cause-card {
  padding: 22px;
  border: 1px solid var(--lab-line-strong);
  border-radius: var(--r-md);
  background: var(--lab-white);
}

.cause-idx {
  display: inline-block;
  margin-bottom: 12px;
  font-size: 10px;
  letter-spacing: 0.16em;
  color: var(--lab-gray-2);
}

.cause-card h3 {
  font-size: 18px;
  color: var(--lab-indigo);
  margin-bottom: 10px;
}

.cause-card p {
  font-size: 14.5px;
  color: var(--lab-gray);
}

.maint-grid {
  display: grid;
  grid-template-columns: minmax(0, 0.9fr) minmax(0, 1.1fr);
  gap: clamp(26px, 3.5vw, 56px);
  align-items: center;
  margin-top: clamp(32px, 4vw, 52px);
}

.maint-media {
  aspect-ratio: 3 / 2;
}

.check-list {
  border-top: 1px solid var(--lab-line-strong);
}

.check-list li {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  justify-content: space-between;
  gap: 10px;
  padding: 12px 0;
  border-bottom: 1px solid var(--lab-line-strong);
  font-size: 15px;
}

.check-list li span:last-child {
  font-family: var(--ff-mono);
  font-size: 10px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--lab-accent);
}

.gallery-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: var(--gap);
}

.g-item {
  position: relative;
  margin: 0;
  border: 1px solid var(--lab-line-strong);
  border-radius: var(--r-md);
  overflow: hidden;
  background: var(--lab-violet);
}

.g-item img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  aspect-ratio: 1 / 1;
  transition: transform 0.5s var(--ease);
}

.g-span-2 {
  grid-column: span 2;
}

.g-span-2 img {
  aspect-ratio: 2 / 1;
}

.g-item:hover img {
  transform: scale(1.03);
}

.g-item figcaption {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  padding: 12px 14px;
  background: var(--lab-white);
  border-top: 1px solid var(--lab-line-strong);
  font-family: var(--ff-mono);
  font-size: 11px;
  line-height: 1.5;
  color: var(--lab-gray);
}

.g-item figcaption b {
  font-weight: 500;
  letter-spacing: 0.12em;
  color: var(--lab-accent);
}

.contact-shell {
  display: grid;
  grid-template-columns: minmax(0, 1.15fr) minmax(0, 0.85fr);
  gap: clamp(28px, 4vw, 60px);
  align-items: start;
}

.contact-card {
  padding: clamp(22px, 3vw, 32px);
  background: var(--lab-flush);
  backdrop-filter: blur(12px) saturate(140%);
  -webkit-backdrop-filter: blur(12px) saturate(140%);
  border: 1px solid var(--lab-violet-2);
  border-radius: var(--r-md);
}

.contact-card-label {
  margin-bottom: 18px;
  font-size: 10.5px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--lab-accent);
}

.field {
  margin-bottom: 16px;
}

.field label {
  display: block;
  margin-bottom: 6px;
  font-family: var(--ff-mono);
  font-size: 10.5px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--lab-indigo-soft);
}

.field input,
.field textarea {
  width: 100%;
  padding: 11px 13px;
  border: 1px solid var(--lab-line-strong);
  border-radius: var(--r-sm);
  background: var(--lab-white);
  color: var(--lab-ink);
  font-family: var(--ff-display);
  font-size: 15px;
  line-height: 1.5;
  resize: vertical;
}

.field input:focus-visible,
.field textarea:focus-visible {
  border-color: var(--lab-accent);
}

.field input[aria-invalid="true"],
.field textarea[aria-invalid="true"] {
  border-color: #a4326b;
}

.form-note {
  margin-top: 12px;
  font-family: var(--ff-mono);
  font-size: 11.5px;
  letter-spacing: 0.04em;
  color: var(--lab-accent);
  min-height: 18px;
}

.form-note.is-error {
  color: #a4326b;
}

.contact-alt {
  margin-top: 22px;
  font-family: var(--ff-mono);
  font-size: 12px;
  letter-spacing: 0.06em;
  color: var(--lab-indigo-soft);
}

.lab-footer {
  padding-top: clamp(40px, 5vw, 64px);
  background: var(--lab-indigo);
  color: #cdc9e6;
}

.footer-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.3fr) repeat(3, minmax(0, 1fr));
  gap: var(--gap);
  padding-bottom: 40px;
}

.footer-brand .brand-mark {
  color: #cfc9ff;
  border-color: rgba(255, 255, 255, 0.22);
  background: rgba(255, 255, 255, 0.06);
}

.footer-name {
  margin: 14px 0 6px;
  font-size: 19px;
  color: #fff;
}

.footer-sub {
  max-width: 34ch;
  font-size: 14px;
}

.footer-h {
  margin-bottom: 12px;
  font-size: 10px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: #8f88bd;
}

.footer-nav ul {
  display: grid;
  gap: 8px;
}

.footer-nav a {
  color: #cdc9e6;
  font-size: 14px;
  border-bottom: 1px solid transparent;
  transition: color 0.2s var(--ease), border-color 0.2s var(--ease);
}

.footer-nav a:hover {
  color: #fff;
  border-bottom-color: #6f66b5;
}

.footer-base {
  display: flex;
  flex-wrap: wrap;
  gap: 8px 24px;
  justify-content: space-between;
  padding-block: 18px;
  border-top: 1px solid rgba(255, 255, 255, 0.14);
  font-size: 12.5px;
}

.footer-mono {
  font-size: 10.5px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: #8f88bd;
}

.reveal {
  opacity: 0;
  transform: translateY(16px);
  transition: opacity 0.6s var(--ease), transform 0.6s var(--ease);
}

.reveal.is-in {
  opacity: 1;
  transform: none;
}

@media (max-width: 1080px) {
  .cause-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .comp-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .spec-tag {
    display: none;
  }
}

@media (max-width: 960px) {
  html {
    scroll-padding-top: 76px;
  }

  .nav-toggle {
    display: block;
  }

  .primary-nav {
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    flex-direction: column;
    align-items: stretch;
    gap: 14px;
    padding: 18px clamp(18px, 4vw, 40px) 24px;
    background: var(--lab-white);
    border-bottom: 1px solid var(--lab-line);
    box-shadow: 0 30px 44px -34px rgba(36, 27, 77, 0.5);
    display: none;
  }

  .primary-nav.is-open {
    display: flex;
  }

  .nav-list {
    flex-direction: column;
    align-items: stretch;
    gap: 2px;
  }

  .nav-link {
    justify-content: flex-start;
    width: 100%;
    padding: 12px 10px;
    border-bottom: 1px solid var(--lab-line);
    border-radius: 0;
    font-size: 16px;
  }

  .has-submenu {
    width: 100%;
  }

  .nav-submenu-btn {
    justify-content: flex-start;
    gap: 10px;
  }

  .submenu {
    position: static;
    min-width: 0;
    margin: 4px 0 6px;
    padding: 0 0 0 14px;
    border: 0;
    border-left: 1px solid var(--lab-line-strong);
    border-radius: 0;
    box-shadow: none;
    background: transparent;
  }

  .submenu a {
    padding: 10px 8px;
    border-bottom: 1px solid var(--lab-line);
    border-radius: 0;
  }

  .nav-cta {
    width: 100%;
    min-height: 46px;
  }

  .hero-shell,
  .repair-shell,
  .install-grid,
  .hp-shell,
  .maint-grid,
  .contact-shell {
    grid-template-columns: minmax(0, 1fr);
  }

  .repair-figure,
  .hp-figure {
    position: static;
    max-width: 460px;
  }

  .hero-readout {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .hp-facts {
    grid-template-columns: minmax(0, 1fr);
  }

  .gallery-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .footer-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (max-width: 720px) {
  .diag-grid {
    grid-template-columns: minmax(0, 1fr);
  }

  .hero-readout {
    grid-template-columns: minmax(0, 1fr);
  }

  .hero-title {
    letter-spacing: -0.035em;
  }

  .gallery-grid {
    grid-template-columns: minmax(0, 1fr);
  }

  .g-span-2 {
    grid-column: span 1;
  }

  .g-span-2 img {
    aspect-ratio: 1 / 1;
  }
}

@media (max-width: 560px) {
  .comp-grid,
  .cause-grid {
    grid-template-columns: minmax(0, 1fr);
  }

  .footer-grid {
    grid-template-columns: minmax(0, 1fr);
  }

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

  .step-list li {
    grid-template-columns: 32px minmax(0, 1fr);
    gap: 14px;
  }

  .step-num {
    width: 30px;
    height: 30px;
  }

  .footer-base {
    flex-direction: column;
  }
}

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

  *,
  *::before,
  *::after {
    animation-duration: 0.001ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.001ms !important;
  }

  .reveal {
    opacity: 1;
    transform: none;
  }
}