:root {
  --paper: #f4f2ed;
  --surface: #ffffff;
  --soft: #e8e6e0;
  --ink: #111417;
  --muted: #62686d;
  --line: rgba(17, 20, 23, 0.14);
  --red: #e22f2b;
  --red-dark: #bf201d;
  --blue: #213b52;
  --mono: "IBM Plex Mono", Consolas, monospace;
  --sans: "Manrope", Arial, sans-serif;
  --radius: 28px;
  --shadow: 0 32px 90px rgba(21, 27, 31, 0.14);
}

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

html {
  scroll-behavior: smooth;
  scroll-padding-top: 96px;
}

body {
  margin: 0;
  color: var(--ink);
  background: var(--paper);
  font-family: var(--sans);
  font-size: 16px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

body.menu-open {
  overflow: hidden;
}

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

a {
  color: inherit;
}

button,
input,
textarea,
select {
  font: inherit;
}

button {
  color: inherit;
}

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

.container {
  width: min(1240px, calc(100% - 48px));
  margin-inline: auto;
}

.section-pad {
  padding-block: 132px;
}

.skip-link {
  position: fixed;
  top: 8px;
  left: 8px;
  z-index: 1000;
  padding: 10px 14px;
  color: #fff;
  background: var(--ink);
  transform: translateY(-160%);
  transition: transform 180ms ease;
}

.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: fixed;
  inset: 0 0 auto;
  z-index: 100;
  border-bottom: 1px solid transparent;
  background: rgba(244, 242, 237, 0.88);
  backdrop-filter: blur(18px);
  transition: border-color 220ms ease, box-shadow 220ms ease, background 220ms ease;
}

.site-header.is-scrolled {
  border-color: var(--line);
  background: rgba(255, 255, 255, 0.94);
  box-shadow: 0 12px 40px rgba(17, 20, 23, 0.06);
}

.nav-wrap {
  min-height: 86px;
  display: grid;
  grid-template-columns: 210px 1fr auto;
  align-items: center;
  gap: 36px;
}

.brand {
  width: 172px;
  height: 46px;
  display: inline-flex;
  align-items: center;
  background: #fff;
  text-decoration: none;
}

.brand img {
  width: 172px;
  height: 46px;
  object-fit: contain;
}

.main-nav {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: clamp(22px, 3vw, 46px);
}

.main-nav a {
  position: relative;
  color: #303438;
  font-size: 14px;
  font-weight: 650;
  text-decoration: none;
}

.main-nav a::after {
  content: "";
  position: absolute;
  right: 0;
  bottom: -8px;
  left: 0;
  height: 2px;
  background: var(--red);
  transform: scaleX(0);
  transform-origin: right;
  transition: transform 180ms ease;
}

.main-nav a:hover::after,
.main-nav a:focus-visible::after {
  transform: scaleX(1);
  transform-origin: left;
}

.language-switcher {
  display: flex;
  flex: 0 0 auto;
  align-items: center;
  gap: 2px;
  padding: 3px;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.68);
}

.main-nav .language-switcher a {
  display: grid;
  width: 31px;
  height: 31px;
  place-items: center;
  padding: 0;
  border: 0;
  border-radius: 50%;
  color: var(--muted);
  font-family: var(--mono);
  font-size: 9px;
  font-weight: 600;
  letter-spacing: 0.08em;
  line-height: 1;
  transition: color 180ms ease, background 180ms ease;
}

.main-nav .language-switcher a::after {
  display: none;
}

.main-nav .language-switcher a:hover,
.main-nav .language-switcher a:focus-visible {
  color: var(--ink);
  background: var(--soft);
}

.main-nav .language-switcher a[aria-current="page"] {
  color: #fff;
  background: var(--ink);
}

.header-cta {
  display: inline-flex;
  min-height: 46px;
  align-items: center;
  justify-content: center;
  gap: 16px;
  padding: 0 18px 0 21px;
  border: 1px solid var(--ink);
  border-radius: 999px;
  font-size: 13px;
  font-weight: 750;
  text-decoration: none;
  transition: color 180ms ease, background 180ms ease, transform 180ms ease;
}

.header-cta:hover {
  color: #fff;
  background: var(--ink);
  transform: translateY(-2px);
}

.header-cta svg {
  width: 18px;
  fill: none;
  stroke: currentColor;
  stroke-linecap: round;
  stroke-linejoin: round;
  stroke-width: 1.6;
}

.menu-toggle {
  display: none;
  width: 44px;
  height: 44px;
  padding: 0;
  border: 0;
  background: transparent;
  cursor: pointer;
}

.menu-toggle > span:not(.sr-only) {
  display: block;
  width: 24px;
  height: 2px;
  margin: 6px auto;
  background: var(--ink);
  transition: transform 200ms ease;
}

.hero {
  min-height: 100svh;
  padding-top: 128px;
  overflow: hidden;
}

.hero-grid {
  display: grid;
  min-height: 660px;
  grid-template-columns: minmax(0, 0.86fr) minmax(520px, 1.14fr);
  align-items: center;
  gap: clamp(52px, 7vw, 112px);
}

.hero-copy {
  position: relative;
  z-index: 2;
  padding-block: 54px;
}

.eyebrow,
.section-label,
.product-kicker {
  display: flex;
  align-items: center;
  gap: 11px;
  margin-bottom: 28px;
  color: var(--muted);
  font-family: var(--mono);
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.14em;
  line-height: 1.3;
  text-transform: uppercase;
}

.signal-dot {
  position: relative;
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--red);
  box-shadow: 0 0 0 5px rgba(226, 47, 43, 0.12);
}

.signal-dot::after {
  content: "";
  position: absolute;
  inset: -6px;
  border: 1px solid rgba(226, 47, 43, 0.35);
  border-radius: 50%;
  animation: signal 2.4s ease-out infinite;
}

@keyframes signal {
  0% { transform: scale(0.45); opacity: 0; }
  25% { opacity: 1; }
  100% { transform: scale(1.8); opacity: 0; }
}

.hero h1 {
  max-width: 690px;
  margin-bottom: 30px;
  font-size: clamp(54px, 5.8vw, 88px);
  font-weight: 650;
  letter-spacing: -0.065em;
  line-height: 0.98;
}

.hero h1 em {
  position: relative;
  color: var(--red);
  font-style: normal;
  white-space: nowrap;
}

.hero h1 em::after {
  content: "";
  position: absolute;
  right: 0.02em;
  bottom: -0.03em;
  left: 0.02em;
  height: 0.06em;
  border-radius: 999px;
  background: currentColor;
  transform: rotate(-1.5deg);
}

.hero-lead {
  max-width: 610px;
  margin-bottom: 36px;
  color: #50565b;
  font-size: clamp(17px, 1.4vw, 20px);
  line-height: 1.7;
}

.hero-actions,
.product-actions,
.contact-actions {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 26px;
}

.button {
  display: inline-flex;
  min-height: 54px;
  align-items: center;
  justify-content: center;
  padding: 0 25px;
  border: 1px solid transparent;
  border-radius: 999px;
  font-size: 14px;
  font-weight: 750;
  text-align: center;
  text-decoration: none;
  transition: transform 180ms ease, box-shadow 180ms ease, color 180ms ease, background 180ms ease;
}

.button:hover {
  transform: translateY(-3px);
}

.button-primary {
  color: #fff;
  background: var(--red);
  box-shadow: 0 14px 34px rgba(226, 47, 43, 0.24);
}

.button-primary:hover {
  background: var(--red-dark);
  box-shadow: 0 18px 38px rgba(226, 47, 43, 0.31);
}

.button-dark {
  color: #fff;
  background: var(--ink);
}

.button-dark:hover {
  background: var(--red);
}

.button-white {
  color: var(--red);
  background: #fff;
}

.button-white:hover {
  box-shadow: 0 15px 34px rgba(84, 8, 5, 0.2);
}

.text-link {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding-block: 8px;
  border-bottom: 1px solid currentColor;
  font-size: 14px;
  font-weight: 720;
  line-height: 1.2;
  text-decoration: none;
  transition: color 160ms ease, gap 160ms ease;
}

.text-link:hover {
  gap: 12px;
  color: var(--red);
}

.hero-meta {
  display: grid;
  max-width: 560px;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 0;
  margin-top: 62px;
  padding-top: 23px;
  border-top: 1px solid var(--line);
}

.hero-meta div {
  display: grid;
  gap: 4px;
  padding-right: 24px;
}

.hero-meta div + div {
  padding-left: 28px;
  border-left: 1px solid var(--line);
}

.hero-meta strong {
  font-family: var(--mono);
  font-size: 15px;
  letter-spacing: -0.03em;
}

.hero-meta span {
  color: var(--muted);
  font-size: 12px;
}

.hero-visual {
  position: relative;
  min-height: 620px;
  overflow: hidden;
  border: 1px solid rgba(17, 20, 23, 0.08);
  border-radius: 44% 44% 34px 34px;
  background:
    linear-gradient(rgba(255,255,255,0.07) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,0.07) 1px, transparent 1px),
    #c5c7c7;
  background-size: 42px 42px;
  box-shadow: var(--shadow);
  isolation: isolate;
}

.hero-visual::after {
  content: "";
  position: absolute;
  inset: auto 0 0;
  height: 34%;
  z-index: -1;
  background: linear-gradient(to top, rgba(17, 20, 23, 0.24), transparent);
}

.gauge-rings {
  position: absolute;
  inset: 5% 5% auto;
  aspect-ratio: 1;
  border: 1px solid rgba(17, 20, 23, 0.15);
  border-radius: 50%;
}

.gauge-rings span {
  position: absolute;
  inset: 8%;
  border: 1px solid rgba(17, 20, 23, 0.1);
  border-radius: 50%;
}

.gauge-rings span:nth-child(2) { inset: 20%; }
.gauge-rings span:nth-child(3) {
  inset: 32%;
  border-color: rgba(226, 47, 43, 0.45);
}

.visual-index {
  position: absolute;
  top: 35px;
  left: 37px;
  z-index: 3;
  margin: 0;
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.12em;
}

.hero-product {
  position: absolute;
  top: 50%;
  left: 50%;
  width: min(82%, 580px);
  z-index: 1;
  border-radius: 50%;
  filter: drop-shadow(0 32px 32px rgba(17, 20, 23, 0.26));
  mix-blend-mode: multiply;
  transform: translate(-50%, -49%);
}

.readout {
  position: absolute;
  z-index: 4;
  min-width: 160px;
  padding: 15px 18px;
  color: #fff;
  border: 1px solid rgba(255, 255, 255, 0.2);
  border-radius: 12px;
  background: rgba(17, 20, 23, 0.88);
  box-shadow: 0 14px 30px rgba(17, 20, 23, 0.16);
  backdrop-filter: blur(8px);
}

.readout span {
  display: block;
  margin-bottom: 5px;
  color: rgba(255, 255, 255, 0.62);
  font-family: var(--mono);
  font-size: 9px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

.readout strong {
  font-family: var(--mono);
  font-size: 25px;
  font-weight: 500;
  line-height: 1;
}

.readout small {
  font-size: 12px;
  font-weight: 400;
}

.readout-top {
  top: 86px;
  right: 26px;
}

.readout-bottom {
  bottom: 82px;
  left: 26px;
}

.visual-caption {
  position: absolute;
  right: 30px;
  bottom: 30px;
  z-index: 4;
  display: flex;
  align-items: center;
  gap: 9px;
  margin: 0;
  color: rgba(17, 20, 23, 0.78);
  font-family: var(--mono);
  font-size: 9px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.visual-caption span {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--red);
}

.trust-line {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 30px;
  margin-top: 38px;
  padding-block: 28px;
  border-top: 1px solid var(--line);
  font-family: var(--mono);
  font-size: 10px;
  letter-spacing: 0.11em;
  text-transform: uppercase;
}

.trust-line > span {
  color: var(--muted);
}

.trust-line ul {
  display: flex;
  gap: 36px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.trust-line li {
  position: relative;
}

.trust-line li::before {
  content: "";
  position: absolute;
  top: 50%;
  left: -18px;
  width: 4px;
  height: 4px;
  border-radius: 50%;
  background: var(--red);
  transform: translateY(-50%);
}

.intro {
  background: #fff;
}

.intro-grid {
  display: grid;
  grid-template-columns: minmax(300px, 0.78fr) minmax(0, 1.22fr);
  gap: clamp(70px, 11vw, 170px);
}

.section-label::before {
  content: "";
  width: 28px;
  height: 1px;
  background: var(--red);
}

.intro h2,
.section-head h2,
.applications-head h2,
.faq h2,
.contact h2 {
  margin-bottom: 0;
  font-size: clamp(48px, 5.4vw, 78px);
  font-weight: 620;
  letter-spacing: -0.06em;
  line-height: 1.02;
}

.intro-lead {
  max-width: 760px;
  margin-bottom: 64px;
  font-size: clamp(21px, 2.1vw, 30px);
  font-weight: 500;
  letter-spacing: -0.03em;
  line-height: 1.48;
}

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

.benefit-list article {
  display: grid;
  grid-template-columns: 54px 1fr;
  gap: 22px;
  padding-block: 28px;
  border-bottom: 1px solid var(--line);
}

.benefit-list article > span,
.application-list article > span {
  color: var(--red);
  font-family: var(--mono);
  font-size: 11px;
}

.benefit-list h3,
.application-list h3 {
  margin-bottom: 7px;
  font-size: 18px;
  letter-spacing: -0.02em;
}

.benefit-list p,
.application-list p {
  max-width: 620px;
  margin-bottom: 0;
  color: var(--muted);
  font-size: 14px;
}

.products {
  overflow: hidden;
  background: var(--paper);
}

.section-head {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(280px, 0.48fr);
  align-items: end;
  gap: 64px;
  margin-bottom: 76px;
}

.section-head > p {
  max-width: 520px;
  margin: 0 0 8px;
  color: var(--muted);
  font-size: 16px;
}

.product-explorer {
  display: grid;
  grid-template-columns: 245px minmax(0, 1fr);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: #fff;
  box-shadow: 0 28px 80px rgba(17, 20, 23, 0.08);
  overflow: hidden;
}

.product-tabs {
  display: flex;
  flex-direction: column;
  padding: 14px;
  border-right: 1px solid var(--line);
  background: #f8f7f3;
}

.product-tabs button {
  position: relative;
  display: flex;
  min-height: 67px;
  align-items: center;
  gap: 15px;
  padding: 0 17px;
  overflow: hidden;
  border: 0;
  border-radius: 13px;
  background: transparent;
  font-size: 14px;
  font-weight: 720;
  text-align: left;
  cursor: pointer;
  transition: color 180ms ease, background 180ms ease, transform 180ms ease;
}

.product-tabs button + button {
  margin-top: 2px;
}

.product-tabs button span {
  width: 24px;
  color: #969a9d;
  font-family: var(--mono);
  font-size: 9px;
  transition: color 180ms ease;
}

.product-tabs button:hover {
  background: rgba(17, 20, 23, 0.05);
}

.product-tabs button[aria-selected="true"] {
  color: #fff;
  background: var(--ink);
  transform: translateX(3px);
}

.product-tabs button[aria-selected="true"] span {
  color: var(--red);
}

.product-panel {
  display: grid;
  min-height: 590px;
  grid-template-columns: minmax(360px, 1.06fr) minmax(320px, 0.94fr);
}

.product-image-wrap {
  position: relative;
  display: grid;
  min-height: 590px;
  place-items: center;
  overflow: hidden;
  background:
    radial-gradient(circle at center, rgba(255, 255, 255, 0.92) 0 28%, transparent 67%),
    linear-gradient(rgba(17,20,23,0.04) 1px, transparent 1px),
    linear-gradient(90deg, rgba(17,20,23,0.04) 1px, transparent 1px),
    #e3e4e1;
  background-size: auto, 40px 40px, 40px 40px, auto;
}

.product-image-wrap::before {
  content: "";
  position: absolute;
  width: 68%;
  aspect-ratio: 1;
  border: 1px solid rgba(17, 20, 23, 0.11);
  border-radius: 50%;
}

.product-image-wrap img {
  position: relative;
  width: 82%;
  max-height: 480px;
  z-index: 2;
  object-fit: contain;
  filter: drop-shadow(0 24px 25px rgba(17, 20, 23, 0.2));
  transition: opacity 180ms ease, transform 240ms ease;
}

.product-image-wrap.is-changing img {
  opacity: 0;
  transform: scale(0.96) translateY(8px);
}

.product-number {
  position: absolute;
  top: 25px;
  left: 27px;
  z-index: 3;
  font-family: var(--mono);
  font-size: 11px;
}

.product-info {
  display: flex;
  flex-direction: column;
  justify-content: center;
  padding: clamp(48px, 6vw, 84px);
}

.product-kicker {
  margin-bottom: 21px;
  color: var(--red);
}

.product-info h3 {
  margin-bottom: 23px;
  font-size: clamp(38px, 4vw, 58px);
  font-weight: 650;
  letter-spacing: -0.055em;
  line-height: 1.04;
}

.product-info > p:not(.product-kicker) {
  max-width: 520px;
  margin-bottom: 30px;
  color: var(--muted);
  font-size: 15px;
  line-height: 1.8;
}

.spec-list {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin: 0 0 42px;
  padding: 0;
  list-style: none;
}

.spec-list li {
  padding: 8px 11px;
  border: 1px solid var(--line);
  border-radius: 999px;
  font-family: var(--mono);
  font-size: 9px;
  letter-spacing: 0.07em;
  text-transform: uppercase;
}

.process {
  position: relative;
  color: #fff;
  background: #111417;
  overflow: hidden;
}

.process::before {
  content: "";
  position: absolute;
  top: -160px;
  left: -170px;
  width: 500px;
  height: 500px;
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: 50%;
  box-shadow: 0 0 0 70px rgba(255,255,255,0.025), 0 0 0 140px rgba(255,255,255,0.018);
}

.process-grid {
  position: relative;
  display: grid;
  grid-template-columns: minmax(310px, 0.76fr) minmax(500px, 1.24fr);
  gap: clamp(70px, 10vw, 150px);
}

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

.process-copy {
  position: sticky;
  top: 135px;
  align-self: start;
}

.process-copy h2 {
  margin-bottom: 28px;
  font-size: clamp(48px, 5.1vw, 72px);
  font-weight: 620;
  letter-spacing: -0.06em;
  line-height: 1.02;
}

.process-copy > p:not(.section-label) {
  max-width: 510px;
  margin-bottom: 34px;
  color: rgba(255, 255, 255, 0.6);
}

.light-link {
  color: #fff;
}

.light-link:hover {
  color: #fff;
}

.process-steps {
  margin: 0;
  padding: 0;
  list-style: none;
}

.process-steps li {
  display: grid;
  min-height: 220px;
  grid-template-columns: 42px 150px minmax(0, 1fr);
  align-items: center;
  gap: 30px;
  padding-block: 34px;
  border-top: 1px solid rgba(255, 255, 255, 0.15);
}

.process-steps li:last-child {
  border-bottom: 1px solid rgba(255, 255, 255, 0.15);
}

.step-no {
  align-self: start;
  padding-top: 8px;
  color: var(--red);
  font-family: var(--mono);
  font-size: 10px;
}

.step-image {
  display: grid;
  width: 150px;
  height: 125px;
  place-items: center;
  border-radius: 16px;
  background: #f2f2ef;
  overflow: hidden;
}

.step-image img {
  width: 90%;
  height: 90%;
  object-fit: contain;
}

.step-symbol,
.step-display {
  display: flex;
  width: 150px;
  height: 125px;
  align-items: center;
  justify-content: center;
  border: 1px solid rgba(255, 255, 255, 0.14);
  border-radius: 16px;
  background: rgba(255, 255, 255, 0.04);
}

.step-symbol span {
  width: 9px;
  height: 9px;
  margin: 5px;
  border-radius: 50%;
  background: var(--red);
  box-shadow: 0 0 22px rgba(226, 47, 43, 0.7);
}

.step-symbol span:nth-child(2) { opacity: 0.6; }
.step-symbol span:nth-child(3) { opacity: 0.3; }

.step-display {
  gap: 8px;
  font-family: var(--mono);
}

.step-display b {
  font-size: 30px;
  font-weight: 500;
}

.step-display small {
  align-self: flex-end;
  margin-bottom: 35px;
  color: rgba(255, 255, 255, 0.52);
}

.process-steps h3 {
  margin-bottom: 8px;
  font-size: 19px;
  letter-spacing: -0.025em;
}

.process-steps p {
  margin-bottom: 0;
  color: rgba(255, 255, 255, 0.54);
  font-size: 14px;
}

.applications {
  background: #fff;
}

.application-stage {
  position: relative;
  min-height: 480px;
  overflow: hidden;
  border-radius: var(--radius);
  background: #18232b;
}

.application-stage::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(90deg, rgba(10, 17, 21, 0.8), rgba(10, 17, 21, 0.12) 66%);
}

.application-stage img {
  width: 100%;
  height: 480px;
  object-fit: cover;
  transition: transform 700ms cubic-bezier(.2,.8,.2,1);
}

.application-stage:hover img {
  transform: scale(1.025);
}

.application-overlay {
  position: absolute;
  bottom: 0;
  left: 0;
  width: min(600px, 78%);
  z-index: 2;
  padding: 52px;
  color: #fff;
}

.application-overlay p {
  margin-bottom: 14px;
  color: rgba(255, 255, 255, 0.58);
  font-family: var(--mono);
  font-size: 9px;
  letter-spacing: 0.11em;
  text-transform: uppercase;
}

.application-overlay h3 {
  margin-bottom: 12px;
  font-size: clamp(34px, 4vw, 54px);
  font-weight: 600;
  letter-spacing: -0.05em;
  line-height: 1.03;
}

.application-overlay span {
  color: rgba(255, 255, 255, 0.68);
  font-size: 14px;
}

.application-list {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  margin-top: 30px;
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}

.application-list article {
  min-height: 210px;
  padding: 29px 24px;
}

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

.application-list article > span {
  display: block;
  margin-bottom: 42px;
}

.faq {
  background: var(--paper);
}

.faq-grid {
  display: grid;
  grid-template-columns: minmax(310px, 0.78fr) minmax(480px, 1.22fr);
  gap: clamp(70px, 11vw, 170px);
}

.faq-intro {
  max-width: 520px;
  margin-top: 30px;
  color: var(--muted);
}

.accordion {
  border-top: 1px solid var(--line);
}

.accordion details {
  border-bottom: 1px solid var(--line);
}

.accordion summary {
  position: relative;
  display: flex;
  min-height: 86px;
  align-items: center;
  justify-content: space-between;
  gap: 25px;
  padding: 22px 4px;
  font-size: 17px;
  font-weight: 700;
  letter-spacing: -0.02em;
  list-style: none;
  cursor: pointer;
}

.accordion summary::-webkit-details-marker {
  display: none;
}

.accordion summary span {
  position: relative;
  width: 22px;
  height: 22px;
  flex: 0 0 auto;
}

.accordion summary span::before,
.accordion summary span::after {
  content: "";
  position: absolute;
  top: 10px;
  left: 3px;
  width: 16px;
  height: 2px;
  background: var(--ink);
  transition: transform 180ms ease;
}

.accordion summary span::after {
  transform: rotate(90deg);
}

.accordion details[open] summary span::after {
  transform: rotate(0);
}

.accordion details[open] summary {
  color: var(--red);
}

.accordion details p {
  max-width: 680px;
  margin: -4px 42px 28px 4px;
  color: var(--muted);
  font-size: 14px;
  line-height: 1.8;
}

.contact {
  padding: 0 0 42px;
  background: var(--paper);
}

.contact-panel {
  position: relative;
  display: grid;
  min-height: 450px;
  grid-template-columns: minmax(0, 0.9fr) minmax(360px, 0.7fr);
  align-items: center;
  gap: clamp(60px, 10vw, 150px);
  padding: clamp(50px, 8vw, 96px);
  overflow: hidden;
  color: #fff;
  border-radius: var(--radius);
  background: var(--red);
}

.contact-panel::before,
.contact-panel::after {
  content: "";
  position: absolute;
  border: 1px solid rgba(255, 255, 255, 0.16);
  border-radius: 50%;
}

.contact-panel::before {
  top: -230px;
  right: -90px;
  width: 560px;
  height: 560px;
}

.contact-panel::after {
  top: -160px;
  right: -20px;
  width: 420px;
  height: 420px;
}

.contact-panel > div {
  position: relative;
  z-index: 2;
}

.contact .section-label::before {
  background: #fff;
}

.contact-copy p {
  max-width: 500px;
  margin-bottom: 35px;
  color: rgba(255, 255, 255, 0.75);
  font-size: 17px;
}

.site-footer {
  padding: 78px 0 26px;
  background: #fff;
}

.footer-grid {
  display: grid;
  grid-template-columns: minmax(300px, 1fr) 0.55fr 0.55fr;
  gap: 60px;
  padding-bottom: 62px;
}

.footer-grid img {
  width: 172px;
  height: 46px;
  margin-bottom: 22px;
  object-fit: contain;
}

.footer-grid p {
  max-width: 380px;
  margin: 0;
  color: var(--muted);
  font-size: 13px;
}

.footer-links,
.footer-contact {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 11px;
}

.footer-links a,
.footer-contact a {
  color: #40464a;
  font-size: 13px;
  font-weight: 650;
  text-decoration: none;
}

.footer-links a:hover,
.footer-contact a:hover {
  color: var(--red);
}

.footer-bottom {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-top: 24px;
  border-top: 1px solid var(--line);
  color: var(--muted);
  font-family: var(--mono);
  font-size: 9px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.footer-bottom a {
  text-decoration: none;
}

@media (max-width: 1120px) {
  .nav-wrap {
    grid-template-columns: 180px 1fr auto;
    gap: 14px;
  }

  .main-nav {
    gap: 14px;
  }

  .main-nav > a {
    font-size: 13px;
  }

  .header-cta {
    gap: 10px;
    padding-inline: 16px;
  }

  .hero-grid {
    grid-template-columns: minmax(0, 0.9fr) minmax(430px, 1.1fr);
    gap: 48px;
  }

  .hero-visual {
    min-height: 540px;
  }

  .product-explorer {
    grid-template-columns: 210px minmax(0, 1fr);
  }

  .product-panel {
    grid-template-columns: minmax(320px, 1fr) minmax(300px, 0.9fr);
  }

  .product-info {
    padding: 50px 42px;
  }

  .process-steps li {
    grid-template-columns: 34px 120px minmax(0, 1fr);
    gap: 24px;
  }

  .step-image,
  .step-symbol,
  .step-display {
    width: 120px;
    height: 110px;
  }
}

@media (max-width: 1024px) {
  .section-pad {
    padding-block: 100px;
  }

  .nav-wrap {
    grid-template-columns: 1fr auto;
    min-height: 76px;
  }

  .brand {
    width: 150px;
    height: 40px;
  }

  .brand img {
    width: 150px;
    height: 40px;
  }

  .menu-toggle {
    display: block;
    z-index: 3;
  }

  .menu-toggle[aria-expanded="true"] > span:not(.sr-only):nth-of-type(2) {
    transform: translateY(4px) rotate(45deg);
  }

  .menu-toggle[aria-expanded="true"] > span:not(.sr-only):nth-of-type(3) {
    transform: translateY(-4px) rotate(-45deg);
  }

  .main-nav {
    position: fixed;
    inset: 76px 0 auto;
    display: flex;
    max-height: 0;
    flex-direction: column;
    align-items: flex-start;
    gap: 0;
    overflow: hidden;
    border-bottom: 1px solid transparent;
    background: #fff;
    opacity: 0;
    transition: max-height 260ms ease, opacity 180ms ease, padding 260ms ease, border-color 180ms ease;
  }

  .main-nav.is-open {
    max-height: calc(100svh - 76px);
    padding: 24px;
    overflow-y: auto;
    border-color: var(--line);
    opacity: 1;
  }

  .main-nav a {
    width: 100%;
    padding: 18px 0;
    border-bottom: 1px solid var(--line);
    font-size: 20px;
  }

  .main-nav a::after {
    display: none;
  }

  .main-nav .language-switcher {
    width: auto;
    margin-top: 22px;
    padding: 4px;
  }

  .main-nav .language-switcher a {
    width: 44px;
    height: 44px;
    padding: 0;
    border: 0;
    font-size: 11px;
  }

  .header-cta {
    display: none;
  }

  .hero {
    padding-top: 110px;
  }

  .hero-grid {
    grid-template-columns: 1fr;
    gap: 25px;
  }

  .hero-copy {
    padding: 30px 0 10px;
  }

  .hero h1 {
    max-width: 760px;
  }

  .hero-visual {
    min-height: 620px;
    border-radius: 34px;
  }

  .intro-grid,
  .faq-grid {
    grid-template-columns: 1fr;
    gap: 64px;
  }

  .section-head {
    grid-template-columns: 1fr;
    gap: 30px;
    margin-bottom: 56px;
  }

  .product-explorer {
    grid-template-columns: 1fr;
  }

  .product-tabs {
    flex-direction: row;
    overflow-x: auto;
    border-right: 0;
    border-bottom: 1px solid var(--line);
    scrollbar-width: thin;
  }

  .product-tabs button {
    min-width: max-content;
    padding-inline: 20px;
  }

  .product-tabs button + button {
    margin: 0 0 0 2px;
  }

  .product-tabs button[aria-selected="true"] {
    transform: none;
  }

  .product-panel {
    grid-template-columns: 1fr;
  }

  .product-image-wrap {
    min-height: 510px;
  }

  .product-info {
    min-height: 480px;
  }

  .process-grid {
    grid-template-columns: 1fr;
    gap: 80px;
  }

  .process-copy {
    position: static;
  }

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

  .application-list article:nth-child(3) {
    border-left: 0;
    border-top: 1px solid var(--line);
  }

  .application-list article:nth-child(4) {
    border-top: 1px solid var(--line);
  }

  .contact-panel {
    grid-template-columns: 1fr;
    gap: 55px;
  }
}

@media (max-width: 680px) {
  .container {
    width: min(100% - 32px, 1240px);
  }

  .section-pad {
    padding-block: 78px;
  }

  .hero {
    padding-top: 96px;
  }

  .hero-grid {
    min-height: auto;
  }

  .hero h1 {
    font-size: clamp(47px, 14vw, 67px);
  }

  .hero h1 em {
    white-space: normal;
  }

  .hero-lead {
    font-size: 16px;
  }

  .hero-actions {
    align-items: flex-start;
    flex-direction: column;
    gap: 15px;
  }

  .hero-meta {
    margin-top: 46px;
  }

  .hero-meta div {
    padding-right: 14px;
  }

  .hero-meta div + div {
    padding-left: 14px;
  }

  .hero-meta strong {
    font-size: 12px;
  }

  .hero-meta span {
    font-size: 10px;
  }

  .hero-visual {
    min-height: 490px;
    margin-top: 18px;
  }

  .visual-index {
    top: 22px;
    left: 23px;
  }

  .readout {
    min-width: 133px;
    padding: 12px 14px;
  }

  .readout strong {
    font-size: 20px;
  }

  .readout-top {
    top: 64px;
    right: 15px;
  }

  .readout-bottom {
    bottom: 66px;
    left: 15px;
  }

  .visual-caption {
    right: 18px;
    bottom: 21px;
    font-size: 8px;
  }

  .trust-line {
    align-items: flex-start;
    flex-direction: column;
    margin-top: 24px;
  }

  .trust-line ul {
    width: 100%;
    flex-wrap: wrap;
    gap: 13px 30px;
    padding-left: 16px;
  }

  .intro h2,
  .section-head h2,
  .applications-head h2,
  .faq h2,
  .contact h2,
  .process-copy h2 {
    font-size: clamp(43px, 13vw, 62px);
  }

  .intro-lead {
    margin-bottom: 44px;
    font-size: 20px;
  }

  .benefit-list article {
    grid-template-columns: 36px 1fr;
    gap: 15px;
  }

  .product-tabs {
    padding: 9px;
  }

  .product-tabs button {
    min-height: 56px;
    padding-inline: 15px;
    font-size: 12px;
  }

  .product-panel {
    min-height: 0;
  }

  .product-image-wrap {
    min-height: 380px;
  }

  .product-image-wrap img {
    width: 88%;
    max-height: 330px;
  }

  .product-info {
    min-height: 0;
    padding: 44px 25px 48px;
  }

  .product-info h3 {
    font-size: 42px;
  }

  .product-actions {
    align-items: flex-start;
    flex-direction: column;
    gap: 15px;
  }

  .process-steps li {
    grid-template-columns: 30px 1fr;
    gap: 16px;
    padding-block: 34px;
  }

  .step-no {
    grid-row: 1 / 3;
  }

  .step-image,
  .step-symbol,
  .step-display {
    width: 100%;
    height: 150px;
  }

  .step-display small {
    margin-bottom: 47px;
  }

  .application-stage,
  .application-stage img {
    min-height: 480px;
    height: 480px;
  }

  .application-stage img {
    object-position: 58% center;
  }

  .application-overlay {
    width: 100%;
    padding: 28px;
  }

  .application-list {
    grid-template-columns: 1fr;
  }

  .application-list article {
    min-height: 170px;
    padding-inline: 7px;
  }

  .application-list article + article {
    border-top: 1px solid var(--line);
    border-left: 0;
  }

  .application-list article > span {
    margin-bottom: 24px;
  }

  .accordion summary {
    min-height: 76px;
    font-size: 15px;
  }

  .contact {
    padding-bottom: 20px;
  }

  .contact-panel {
    width: calc(100% - 16px);
    padding: 56px 24px;
    border-radius: 22px;
  }

  .contact-actions {
    align-items: flex-start;
    flex-direction: column;
    gap: 14px;
  }

  .footer-grid {
    grid-template-columns: 1fr;
    gap: 40px;
  }
}

body.dialog-open {
  position: fixed;
  inset-inline: 0;
  width: 100%;
  overflow: hidden;
}

.product-dialog {
  width: 100%;
  max-width: none;
  height: 100dvh;
  max-height: none;
  margin: 0;
  padding: clamp(12px, 3vw, 32px);
  border: 0;
  color: var(--ink);
  background: transparent;
  overflow: hidden;
}

.product-dialog:not([open]) {
  display: none;
}

.product-dialog::backdrop {
  background: rgba(11, 15, 18, 0.78);
  backdrop-filter: blur(9px);
}

.product-dialog__surface {
  display: grid;
  grid-template-rows: auto minmax(0, 1fr);
  width: min(1180px, 100%);
  height: min(860px, calc(100dvh - 64px));
  margin: auto;
  overflow: hidden;
  border: 1px solid rgba(255, 255, 255, 0.22);
  border-radius: 28px;
  background: var(--surface);
  box-shadow: 0 36px 100px rgba(0, 0, 0, 0.35);
}

.product-dialog__header {
  position: relative;
  z-index: 2;
  display: flex;
  min-height: 108px;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  padding: 22px 28px 20px 38px;
  border-bottom: 1px solid var(--line);
  background: var(--surface);
}

.product-dialog__kicker {
  margin: 0 0 6px;
  color: var(--red);
  font-family: var(--mono);
  font-size: 10px;
  font-weight: 700;
  letter-spacing: 0.16em;
  line-height: 1.3;
  text-transform: uppercase;
}

.product-dialog__header h2 {
  margin: 0;
  font-size: clamp(32px, 4vw, 56px);
  letter-spacing: -0.055em;
  line-height: 0.98;
}

.product-dialog__header h2:focus {
  outline: none;
}

.product-dialog__close {
  display: grid;
  width: 50px;
  height: 50px;
  flex: 0 0 auto;
  place-items: center;
  padding: 0;
  border: 1px solid var(--line);
  border-radius: 50%;
  color: var(--ink);
  background: var(--paper);
  cursor: pointer;
  transition: color 180ms ease, background 180ms ease, transform 180ms ease;
}

.product-dialog__close span {
  margin-top: -3px;
  font-size: 30px;
  font-weight: 300;
  line-height: 1;
}

.product-dialog__close:hover {
  color: #fff;
  background: var(--red);
  transform: rotate(5deg);
}

.product-dialog__close:focus-visible,
.product-dialog__back:focus-visible,
.product-dialog__shops a:focus-visible {
  outline: 3px solid rgba(226, 47, 43, 0.3);
  outline-offset: 3px;
}

.product-dialog__scroll {
  overflow-y: auto;
  overscroll-behavior: contain;
  scrollbar-gutter: stable;
}

.product-dialog__hero {
  display: grid;
  grid-template-columns: minmax(300px, 0.9fr) minmax(0, 1.1fr);
  min-height: 360px;
  border-bottom: 1px solid var(--line);
  background: var(--paper);
}

.product-dialog__visual {
  position: relative;
  display: grid;
  min-height: 360px;
  place-items: center;
  padding: 48px;
  overflow: hidden;
  border-right: 1px solid var(--line);
  background:
    linear-gradient(rgba(17, 20, 23, 0.055) 1px, transparent 1px),
    linear-gradient(90deg, rgba(17, 20, 23, 0.055) 1px, transparent 1px),
    #e9e7e1;
  background-size: 44px 44px;
}

.product-dialog__visual::after {
  position: absolute;
  width: 58%;
  aspect-ratio: 1;
  border: 1px solid rgba(226, 47, 43, 0.18);
  border-radius: 50%;
  content: "";
}

.product-dialog__visual > span {
  position: absolute;
  top: 22px;
  left: 26px;
  color: rgba(17, 20, 23, 0.25);
  font-family: var(--mono);
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 0.14em;
}

.product-dialog__visual img {
  position: relative;
  z-index: 1;
  width: min(88%, 400px);
  max-height: 290px;
  object-fit: contain;
  filter: drop-shadow(0 22px 23px rgba(17, 20, 23, 0.17));
}

.product-dialog__intro {
  display: flex;
  flex-direction: column;
  justify-content: center;
  padding: 48px clamp(34px, 5vw, 72px);
}

.product-dialog__intro > p {
  max-width: 620px;
  margin: 0;
  font-size: clamp(18px, 2vw, 23px);
  font-weight: 560;
  letter-spacing: -0.025em;
  line-height: 1.55;
}

.product-dialog__quick-specs {
  display: flex;
  flex-wrap: wrap;
  gap: 9px;
  margin-top: 30px;
}

.product-dialog__quick-specs span {
  padding: 9px 12px;
  border: 1px solid var(--line);
  border-radius: 999px;
  color: var(--muted);
  background: var(--surface);
  font-family: var(--mono);
  font-size: 10px;
  font-weight: 650;
  letter-spacing: 0.06em;
  line-height: 1.2;
  text-transform: uppercase;
}

.product-dialog__content {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 0 54px;
  padding: 12px clamp(34px, 5vw, 72px) 42px;
}

.product-dialog__section {
  padding: 34px 0;
  border-top: 1px solid var(--line);
}

.product-dialog__section h3 {
  margin: 0 0 20px;
  color: var(--red);
  font-family: var(--mono);
  font-size: 10px;
  font-weight: 700;
  letter-spacing: 0.15em;
  line-height: 1.4;
  text-transform: uppercase;
}

.product-dialog__section ul {
  display: grid;
  gap: 13px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.product-dialog__section li {
  position: relative;
  padding-left: 20px;
  color: var(--muted);
}

.product-dialog__section li::before {
  position: absolute;
  top: 0.72em;
  left: 0;
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--red);
  content: "";
}

.product-dialog__section dl {
  margin: 0;
}

.product-dialog__section dl > div {
  display: grid;
  grid-template-columns: minmax(120px, 0.8fr) minmax(0, 1.2fr);
  gap: 18px;
  padding: 12px 0;
  border-bottom: 1px solid var(--line);
}

.product-dialog__section dl > div:first-child {
  padding-top: 0;
}

.product-dialog__section dt {
  color: var(--muted);
  font-size: 13px;
}

.product-dialog__section dd {
  margin: 0;
  font-size: 13px;
  font-weight: 680;
  text-align: right;
}

.product-dialog__section--note {
  grid-column: 1 / -1;
  margin-top: 6px;
  padding: 28px 30px;
  border: 0;
  border-radius: 18px;
  background: rgba(226, 47, 43, 0.08);
}

.product-dialog__section--note h3 {
  margin-bottom: 10px;
}

.product-dialog__section--note p {
  margin: 0;
  color: #4f2927;
  font-size: 14px;
  line-height: 1.7;
}

.product-dialog__actions {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  padding: 28px clamp(34px, 5vw, 72px) 40px;
  border-top: 1px solid var(--line);
  background: var(--surface);
}

.product-dialog__shops {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.product-dialog__back {
  border-color: var(--line);
  color: var(--ink);
  background: transparent;
  cursor: pointer;
}

.product-dialog__back:hover {
  color: #fff;
  background: var(--ink);
}

@media (max-width: 820px) {
  .product-dialog {
    padding: 0;
  }

  .product-dialog__surface {
    width: 100%;
    height: 100dvh;
    border: 0;
    border-radius: 0;
  }

  .product-dialog__header {
    min-height: 88px;
    gap: 12px;
    padding: 15px 16px 14px 20px;
  }

  .product-dialog__header h2 {
    font-size: clamp(27px, 9vw, 39px);
  }

  .product-dialog__close {
    width: 46px;
    height: 46px;
  }

  .product-dialog__hero {
    grid-template-columns: 1fr;
  }

  .product-dialog__visual {
    min-height: 270px;
    padding: 40px 30px;
    border-right: 0;
    border-bottom: 1px solid var(--line);
  }

  .product-dialog__visual img {
    width: min(82%, 330px);
    max-height: 225px;
  }

  .product-dialog__intro {
    padding: 34px 22px 40px;
  }

  .product-dialog__intro > p {
    font-size: 18px;
  }

  .product-dialog__content {
    grid-template-columns: 1fr;
    gap: 0;
    padding: 0 22px 30px;
  }

  .product-dialog__section {
    padding: 28px 0;
  }

  .product-dialog__section--note {
    margin-top: 0;
    padding: 24px;
  }

  .product-dialog__actions {
    align-items: stretch;
    flex-direction: column;
    padding: 24px 22px 34px;
  }

  .product-dialog__shops {
    flex-direction: column;
  }

  .product-dialog__shops .button,
  .product-dialog__back {
    width: 100%;
  }

  .product-dialog__back {
    order: 2;
  }
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    scroll-behavior: auto !important;
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
}