:root {
  --ink: #07152d;
  --ink-soft: #465572;
  --blue: #135ef2;
  --blue-dark: #0d4ddd;
  --blue-pale: #e9f0ff;
  --line: #dfe7f3;
  --line-strong: #cbd8ec;
  --coral: #ff885c;
  --white: #ffffff;
  --shadow: 0 20px 60px rgba(15, 44, 92, 0.1);
  --container: 1500px;
  --gutter: clamp(22px, 3vw, 48px);
  --section-space: clamp(88px, 10vw, 148px);
  --radius: 4px;
  font-family:
    Inter, "SF Pro Display", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei",
    system-ui, -apple-system, sans-serif;
  color: var(--ink);
  background: var(--white);
  font-synthesis: none;
  text-rendering: optimizeLegibility;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  scroll-padding-top: 92px;
}

body {
  margin: 0;
  min-width: 320px;
  color: var(--ink);
  background: var(--white);
  -webkit-font-smoothing: antialiased;
}

body.nav-open {
  overflow: hidden;
}

img,
svg {
  display: block;
}

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

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

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

:focus-visible {
  outline: 3px solid rgba(19, 94, 242, 0.36);
  outline-offset: 4px;
}

.skip-link {
  position: fixed;
  z-index: 200;
  top: 12px;
  left: 12px;
  padding: 12px 18px;
  border-radius: var(--radius);
  color: var(--white);
  background: var(--ink);
  transform: translateY(-160%);
  transition: transform 180ms ease;
}

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

.site-header {
  position: sticky;
  z-index: 100;
  top: 0;
  height: 92px;
  border-bottom: 1px solid rgba(203, 216, 236, 0.72);
  background: rgba(255, 255, 255, 0.94);
  backdrop-filter: blur(18px);
  transition: box-shadow 220ms ease;
}

.site-header.is-scrolled {
  box-shadow: 0 12px 34px rgba(20, 45, 88, 0.08);
}

.nav-shell,
.section-shell,
.footer-shell {
  width: min(100%, var(--container));
  margin: 0 auto;
  padding-inline: var(--gutter);
}

.nav-shell {
  display: flex;
  height: 100%;
  align-items: center;
  justify-content: space-between;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  min-width: max-content;
}

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

.brand-copy {
  display: grid;
  gap: 2px;
}

.brand-copy strong {
  font-size: 22px;
  line-height: 1;
  letter-spacing: 0.02em;
}

.brand-copy span {
  color: var(--ink-soft);
  font-size: 10px;
  font-weight: 700;
  line-height: 1;
  letter-spacing: 0.2em;
}

.primary-nav {
  display: flex;
  align-items: center;
  gap: clamp(28px, 3vw, 54px);
  color: #162238;
  font-size: 15px;
  font-weight: 600;
}

.primary-nav > a:not(.nav-cta) {
  position: relative;
  padding-block: 10px;
}

.primary-nav > a:not(.nav-cta)::after {
  position: absolute;
  right: 0;
  bottom: 4px;
  left: 0;
  height: 2px;
  background: var(--blue);
  content: "";
  transform: scaleX(0);
  transform-origin: right;
  transition: transform 180ms ease;
}

.primary-nav > a:not(.nav-cta):hover::after {
  transform: scaleX(1);
  transform-origin: left;
}

.nav-cta {
  display: inline-flex;
  min-height: 48px;
  align-items: center;
  justify-content: center;
  padding: 0 24px;
  border-radius: var(--radius);
  color: var(--white);
  background: var(--blue);
  box-shadow: 0 10px 26px rgba(19, 94, 242, 0.18);
  transition:
    background 180ms ease,
    transform 180ms ease;
}

.nav-cta:hover,
.button-primary:hover {
  background: var(--blue-dark);
  transform: translateY(-2px);
}

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

.nav-toggle span {
  width: 24px;
  height: 2px;
  margin: 6px auto;
  background: var(--ink);
  transition: transform 180ms ease;
}

.hero {
  overflow: hidden;
  border-bottom: 1px solid var(--line);
}

.hero-shell {
  display: grid;
  width: min(100%, 1500px);
  min-height: min(720px, calc(100vh - 92px));
  margin: 0 auto;
  padding-left: max(var(--gutter), calc((100vw - var(--container)) / 2 + var(--gutter)));
  grid-template-columns: minmax(590px, 1fr) minmax(590px, 1fr);
  align-items: center;
}

.hero-copy {
  position: relative;
  z-index: 2;
  padding-block: clamp(80px, 9vw, 130px);
}

.hero h1 {
  max-width: 680px;
  margin: 0;
  font-size: clamp(48px, 4.5vw, 72px);
  font-weight: 760;
  line-height: 1.1;
  letter-spacing: -0.055em;
}

.hero h1 span {
  display: block;
  white-space: nowrap;
}

.hero-copy > p {
  max-width: 610px;
  margin: 32px 0 0;
  color: var(--ink-soft);
  font-size: clamp(18px, 1.6vw, 23px);
  line-height: 1.8;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
  margin-top: 42px;
}

.button {
  display: inline-flex;
  min-height: 56px;
  align-items: center;
  justify-content: center;
  padding: 0 28px;
  border: 1px solid transparent;
  border-radius: var(--radius);
  font-size: 16px;
  font-weight: 700;
  letter-spacing: 0.01em;
  transition:
    color 180ms ease,
    border-color 180ms ease,
    background 180ms ease,
    transform 180ms ease;
}

.button-primary {
  color: var(--white);
  background: var(--blue);
  box-shadow: 0 12px 30px rgba(19, 94, 242, 0.16);
}

.button-secondary {
  border-color: var(--blue);
  color: var(--blue);
  background: var(--white);
}

.button-secondary:hover {
  color: var(--white);
  background: var(--blue);
}

.hero-media {
  align-self: stretch;
  margin: 0;
}

.hero-media img {
  width: 100%;
  height: 100%;
  min-height: 650px;
  object-fit: cover;
  object-position: 56% center;
}

.signal-strip {
  position: relative;
  display: grid;
  width: 100%;
  min-height: 132px;
  border-top: 1px solid var(--line);
  grid-template-columns: repeat(4, minmax(0, 1fr));
  align-items: stretch;
  padding-inline: max(var(--gutter), calc((100vw - var(--container)) / 2 + var(--gutter)));
}

.signal-item {
  display: flex;
  min-width: 0;
  align-items: center;
  justify-content: center;
  gap: 18px;
  padding: 25px 22px;
  border-right: 1px solid var(--line);
}

.signal-item:nth-of-type(2) {
  border-left: 1px solid var(--line);
}

.signal-item svg,
.business-row svg {
  width: 34px;
  min-width: 34px;
  fill: none;
  stroke: var(--blue);
  stroke-linecap: round;
  stroke-linejoin: round;
  stroke-width: 1.8;
}

.signal-item div {
  display: grid;
  gap: 7px;
}

.signal-item strong {
  font-size: 16px;
  line-height: 1.3;
}

.signal-item span {
  overflow: hidden;
  color: #71809a;
  font-size: 12px;
  line-height: 1.3;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.signal-line {
  position: absolute;
  top: 36px;
  width: 92px;
  height: 56px;
  opacity: 0.6;
}

.signal-line::before,
.signal-line::after {
  position: absolute;
  right: 0;
  left: 0;
  height: 1px;
  background: var(--blue);
  content: "";
}

.signal-line::before {
  top: 12px;
}

.signal-line::after {
  top: 39px;
}

.signal-line-left {
  left: -18px;
  transform: skewX(34deg);
}

.signal-line-right {
  right: -18px;
  transform: skewX(-34deg);
}

.section {
  padding-block: var(--section-space);
}

.section-heading {
  max-width: 820px;
}

.section-heading h2 {
  margin: 0;
  font-size: clamp(38px, 4.3vw, 62px);
  font-weight: 750;
  line-height: 1.16;
  letter-spacing: -0.05em;
}

.section-heading p {
  margin: 22px 0 0;
  color: var(--ink-soft);
  font-size: clamp(17px, 1.5vw, 21px);
  line-height: 1.75;
}

.business-layout {
  display: grid;
  margin-top: 70px;
  grid-template-columns: minmax(0, 1.18fr) minmax(440px, 0.82fr);
  gap: clamp(48px, 6vw, 96px);
  align-items: center;
}

.exploded-media {
  margin: 0;
}

.exploded-media img {
  width: 100%;
  filter: drop-shadow(0 28px 34px rgba(21, 39, 67, 0.08));
}

.business-list {
  border-top: 1px solid var(--blue);
}

.business-row {
  display: grid;
  min-height: 142px;
  padding: 31px 0;
  border-bottom: 1px solid var(--blue);
  grid-template-columns: 58px 1fr;
  gap: 20px;
  align-items: start;
}

.business-row h3,
.process-list h3,
.product-directions h3 {
  margin: 0;
  font-size: clamp(20px, 1.9vw, 28px);
  line-height: 1.25;
  letter-spacing: -0.025em;
}

.business-row p,
.process-list p,
.product-directions p {
  margin: 11px 0 0;
  color: var(--ink-soft);
  font-size: 15px;
  line-height: 1.8;
}

.process {
  border-top: 1px solid var(--line);
  background:
    linear-gradient(var(--white), var(--white)) padding-box,
    linear-gradient(90deg, rgba(19, 94, 242, 0.035) 1px, transparent 1px) border-box;
  background-size: auto, 80px 80px;
}

.process-list {
  position: relative;
  display: grid;
  margin: 68px 0 0;
  padding: 0;
  list-style: none;
  grid-template-columns: repeat(4, minmax(0, 1fr));
}

.process-list::before {
  position: absolute;
  z-index: 0;
  top: 43px;
  right: 12%;
  left: 12%;
  height: 1px;
  background: var(--blue);
  content: "";
}

.process-list li {
  position: relative;
  z-index: 1;
  padding: 0 clamp(22px, 2.8vw, 40px);
  border-right: 1px solid var(--line);
  background: var(--white);
}

.process-list li:first-child {
  padding-left: 0;
}

.process-list li:last-child {
  padding-right: 0;
  border-right: 0;
}

.process-index,
.product-directions span {
  display: inline-block;
  margin-bottom: 30px;
  color: var(--blue);
  font-size: 18px;
  font-weight: 800;
  letter-spacing: 0.03em;
}

.process-index::after {
  display: block;
  width: 12px;
  height: 12px;
  margin-top: 14px;
  border: 3px solid var(--white);
  border-radius: 50%;
  background: var(--blue);
  box-shadow: 0 0 0 1px var(--blue);
  content: "";
}

.products {
  overflow: hidden;
  border-top: 1px solid var(--line);
}

.section-heading-large {
  max-width: 940px;
}

.product-media {
  margin: clamp(56px, 7vw, 92px) 0 0;
}

.product-media img {
  width: 100%;
  aspect-ratio: 16 / 7.3;
  object-fit: cover;
  object-position: center 50%;
}

.product-directions {
  display: grid;
  margin-top: 54px;
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.product-directions article {
  min-height: 210px;
  padding: 8px clamp(28px, 4vw, 64px) 0;
  border-right: 1px solid var(--line);
}

.product-directions article:first-child {
  padding-left: 0;
}

.product-directions article:last-child {
  padding-right: 0;
  border-right: 0;
}

.site-footer {
  padding-top: 66px;
  color: var(--ink);
  background: var(--white);
}

.footer-shell {
  display: flex;
  justify-content: space-between;
  gap: 48px;
  padding-bottom: 52px;
}

.footer-brand .brand img {
  width: 42px;
  height: 42px;
}

.footer-brand .brand-copy strong {
  font-size: 20px;
}

.footer-brand > p {
  margin: 25px 0 0;
  font-size: 16px;
  font-weight: 650;
}

.footer-brand address {
  margin-top: 11px;
  color: var(--ink-soft);
  font-size: 14px;
  font-style: normal;
  line-height: 1.7;
}

.footer-links {
  display: flex;
  align-items: flex-start;
  gap: 30px;
  color: var(--ink-soft);
  font-size: 14px;
}

.footer-links a:hover,
.footer-legal a:hover {
  color: var(--blue);
}

.footer-legal {
  display: flex;
  min-height: 76px;
  align-items: center;
  justify-content: center;
  gap: 24px;
  padding: 18px var(--gutter);
  border-top: 1px solid var(--line);
  color: #6c7890;
  font-size: 13px;
}

[data-reveal] {
  opacity: 0;
  transform: translateY(24px);
  transition:
    opacity 600ms cubic-bezier(0.22, 1, 0.36, 1),
    transform 600ms cubic-bezier(0.22, 1, 0.36, 1);
}

[data-reveal].is-visible {
  opacity: 1;
  transform: translateY(0);
}

@media (max-width: 1080px) {
  .hero-shell {
    min-height: auto;
    padding-inline: var(--gutter);
    grid-template-columns: minmax(450px, 1fr) minmax(470px, 1fr);
  }

  .hero-media img {
    min-height: 570px;
  }

  .signal-item {
    gap: 11px;
    padding-inline: 13px;
  }

  .signal-item svg {
    width: 28px;
    min-width: 28px;
  }

  .business-layout {
    grid-template-columns: 1fr 0.82fr;
  }
}

@media (max-width: 840px) {
  .site-header {
    height: 76px;
  }

  html {
    scroll-padding-top: 76px;
  }

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

  .brand-copy strong {
    font-size: 19px;
  }

  .nav-toggle {
    display: block;
  }

  .nav-toggle span {
    display: block;
  }

  .nav-toggle[aria-expanded="true"] span:first-child {
    transform: translateY(4px) rotate(45deg);
  }

  .nav-toggle[aria-expanded="true"] span:last-child {
    transform: translateY(-4px) rotate(-45deg);
  }

  .primary-nav {
    position: absolute;
    z-index: 2;
    top: 75px;
    right: 0;
    bottom: auto;
    left: 0;
    display: grid;
    width: 100%;
    height: calc(100vh - 76px);
    height: calc(100dvh - 76px);
    align-content: start;
    gap: 0;
    overflow-y: auto;
    padding: 32px var(--gutter);
    border-top: 1px solid var(--line);
    background: var(--white);
    opacity: 0;
    pointer-events: none;
    transform: translateY(-12px);
    transition:
      opacity 180ms ease,
      transform 180ms ease;
  }

  .primary-nav.is-open {
    opacity: 1;
    pointer-events: auto;
    transform: translateY(0);
  }

  .primary-nav a {
    padding: 19px 0;
    border-bottom: 1px solid var(--line);
    font-size: 19px;
  }

  .primary-nav .nav-cta {
    min-height: 54px;
    margin-top: 24px;
    padding: 0 24px;
    border-bottom: 0;
  }

  .hero-shell {
    display: flex;
    flex-direction: column;
    padding: 0;
  }

  .hero-copy {
    width: 100%;
    padding: 72px var(--gutter) 18px;
  }

  .hero h1 {
    max-width: 680px;
  }

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

  .hero-media {
    width: 100%;
    height: min(62vw, 530px);
  }

  .hero-media img {
    min-height: 0;
    object-position: 62% center;
  }

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

  .signal-item:nth-of-type(2) {
    border-left: 0;
  }

  .signal-item:nth-of-type(2),
  .signal-item:nth-of-type(3) {
    border-bottom: 1px solid var(--line);
  }

  .signal-line {
    display: none;
  }

  .business-layout {
    display: flex;
    flex-direction: column;
  }

  .exploded-media {
    max-width: 720px;
  }

  .business-list {
    width: 100%;
  }

  .process-list {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    row-gap: 54px;
  }

  .process-list::before {
    display: none;
  }

  .process-list li:nth-child(2) {
    border-right: 0;
  }

  .process-list li:nth-child(3) {
    padding-left: 0;
  }

  .product-media img {
    aspect-ratio: 16 / 8.5;
  }

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

@media (max-width: 600px) {
  :root {
    --gutter: 21px;
    --section-space: 84px;
  }

  .brand-copy strong {
    font-size: 18px;
  }

  .hero-copy {
    padding-top: 62px;
  }

  .hero h1 {
    font-size: clamp(42px, 13vw, 58px);
    letter-spacing: -0.06em;
  }

  .hero-copy > p {
    margin-top: 24px;
    font-size: 17px;
    line-height: 1.75;
  }

  .hero-actions {
    display: grid;
    margin-top: 32px;
    grid-template-columns: 1fr;
  }

  .button {
    width: 100%;
  }

  .hero-media {
    height: 76vw;
    min-height: 310px;
  }

  .hero-media img {
    width: 122%;
    max-width: none;
    margin-left: -22%;
    object-position: 68% center;
  }

  .signal-strip {
    display: block;
    padding-inline: var(--gutter);
  }

  .signal-item,
  .signal-item:nth-of-type(2),
  .signal-item:nth-of-type(3) {
    justify-content: flex-start;
    padding: 23px 0;
    border-right: 0;
    border-bottom: 1px solid var(--line);
  }

  .signal-item:last-of-type {
    border-bottom: 0;
  }

  .section-heading h2 {
    font-size: clamp(36px, 10vw, 48px);
  }

  .business-layout {
    margin-top: 46px;
    gap: 42px;
  }

  .exploded-media img {
    width: 112%;
    max-width: none;
    margin-left: -6%;
  }

  .business-row {
    min-height: 0;
    grid-template-columns: 44px 1fr;
  }

  .business-row svg {
    width: 29px;
    min-width: 29px;
  }

  .process-list {
    display: block;
    margin-top: 52px;
  }

  .process-list li,
  .process-list li:first-child,
  .process-list li:nth-child(3),
  .process-list li:last-child {
    padding: 0 0 34px 54px;
    border-right: 0;
    border-bottom: 1px solid var(--line);
  }

  .process-list li + li {
    padding-top: 34px;
  }

  .process-index {
    position: absolute;
    left: 0;
    margin: 0;
  }

  .process-index::after {
    display: none;
  }

  .product-media {
    width: calc(100% + var(--gutter) * 2);
    margin-left: calc(var(--gutter) * -1);
  }

  .product-media img {
    aspect-ratio: 4 / 3;
    object-position: 54% center;
  }

  .product-directions {
    display: block;
    margin-top: 42px;
  }

  .product-directions article,
  .product-directions article:first-child,
  .product-directions article:last-child {
    min-height: 0;
    padding: 30px 0;
    border-right: 0;
    border-bottom: 1px solid var(--line);
  }

  .product-directions article:last-child {
    border-bottom: 0;
  }

  .product-directions span {
    margin-bottom: 14px;
  }

  .footer-links {
    flex-wrap: wrap;
  }

  .footer-legal {
    flex-direction: column;
    gap: 8px;
  }
}

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

  *,
  *::before,
  *::after {
    scroll-behavior: auto !important;
    transition-duration: 0.01ms !important;
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
  }

  [data-reveal] {
    opacity: 1;
    transform: none;
  }
}