/* ================================================================
   CELTRONIX SHARED STYLES
   Edit the colour variables below to change the whole visual system.
   ================================================================ */

:root {
  --ink: #071015;
  --ink-soft: #101b20;
  --panel: #142229;
  --paper: #f3f2ed;
  --white: #ffffff;
  --cyan: #5be7ef;
  --cyan-dark: #087e8c;
  --lime: #c8ff58;
  --line: rgba(7, 16, 21, 0.16);
  --line-dark: rgba(255, 255, 255, 0.14);
  --muted: #607077;
  --muted-dark: #a8b7bb;
  --radius: 2px;
  --header-height: 82px;
  --content: 1240px;
  --ease: cubic-bezier(0.22, 1, 0.36, 1);
}

* {
  box-sizing: border-box;
}
html {
  scroll-behavior: smooth;
}
body {
  margin: 0;
  overflow-x: hidden;
  background: var(--paper);
  color: var(--ink);
  font-family: Inter, "Helvetica Neue", Arial, sans-serif;
  -webkit-font-smoothing: antialiased;
}
body.menu-open {
  overflow: hidden;
}
a {
  color: inherit;
  text-decoration: none;
}
button,
input,
textarea,
select {
  font: inherit;
}
button,
a {
  -webkit-tap-highlight-color: transparent;
}
img {
  max-width: 100%;
}
p {
  line-height: 1.65;
}
h1,
h2,
h3,
p {
  margin-top: 0;
}
em {
  color: var(--cyan-dark);
  font-family: Georgia, "Times New Roman", serif;
  font-weight: 400;
}

.site-header {
  position: fixed;
  z-index: 100;
  top: 0;
  left: 0;
  width: 100%;
  height: var(--header-height);
  padding: 0 max(28px, calc((100vw - var(--content)) / 2));
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  align-items: center;
  background: rgba(7, 16, 21, 0.88);
  color: white;
  border-bottom: 1px solid rgba(255, 255, 255, 0.1);
  backdrop-filter: blur(18px);
}
.brand {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  width: fit-content;
  color: white;
  font-size: 15px;
  font-weight: 800;
  letter-spacing: 0.16em;
}
.brand-symbol {
  position: relative;
  width: 34px;
  height: 34px;
  display: grid;
  place-items: center;
  border: 1px solid rgba(91, 231, 239, 0.65);
  border-radius: 50%;
}
.brand-symbol::after {
  content: "C";
  color: var(--cyan);
  font-size: 16px;
  font-weight: 700;
  letter-spacing: 0;
}
.brand-symbol i {
  position: absolute;
  width: 4px;
  height: 4px;
  background: var(--lime);
  border-radius: 50%;
  box-shadow: 0 0 10px var(--lime);
}
.brand-symbol i:nth-child(1) {
  top: -2px;
  left: 14px;
}
.brand-symbol i:nth-child(2) {
  right: -2px;
  bottom: 8px;
}
.brand-symbol i:nth-child(3) {
  left: 1px;
  bottom: 2px;
}
.main-nav {
  display: flex;
  align-items: center;
  gap: 34px;
}
.main-nav a {
  position: relative;
  padding: 30px 0;
  color: rgba(255, 255, 255, 0.68);
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  transition: color 0.25s;
}
.main-nav a:hover,
.main-nav a.active {
  color: white;
}
.main-nav a.active::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: 20px;
  height: 2px;
  background: var(--cyan);
}
.header-cta {
  justify-self: end;
}
.menu-toggle {
  display: none;
}

.button {
  min-height: 54px;
  padding: 0 22px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 28px;
  border: 1px solid var(--cyan);
  background: var(--cyan);
  color: var(--ink);
  font-size: 12px;
  font-weight: 800;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  cursor: pointer;
  transition:
    transform 0.25s var(--ease),
    background 0.25s,
    color 0.25s;
}
.button:hover {
  transform: translateY(-3px);
  background: var(--lime);
  border-color: var(--lime);
}
.button span {
  font-size: 18px;
  line-height: 1;
}
.button-small {
  min-height: 43px;
  padding: 0 16px;
  gap: 18px;
  font-size: 10px;
}
.button-ghost {
  background: transparent;
  color: white;
  border-color: rgba(255, 255, 255, 0.4);
}
.button-ghost:hover {
  color: var(--ink);
}
.button-outline {
  background: transparent;
  color: white;
  border-color: rgba(255, 255, 255, 0.35);
}
.button-dark {
  background: var(--ink);
  border-color: var(--ink);
  color: white;
}
.button-dark:hover {
  color: var(--ink);
}
.button-light {
  background: white;
  border-color: white;
}
.text-link {
  display: inline-flex;
  align-items: center;
  gap: 16px;
  padding-bottom: 5px;
  border-bottom: 1px solid currentColor;
  font-size: 12px;
  font-weight: 800;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}
.text-link span {
  font-size: 17px;
}
.eyebrow,
.section-label {
  margin-bottom: 24px;
  font-size: 11px;
  font-weight: 800;
  letter-spacing: 0.2em;
  text-transform: uppercase;
}
.eyebrow {
  display: flex;
  align-items: center;
  gap: 10px;
  color: var(--cyan);
}
.eyebrow span {
  width: 7px;
  height: 7px;
  background: var(--lime);
  border-radius: 50%;
  box-shadow: 0 0 12px var(--lime);
}
.section-label {
  color: var(--cyan-dark);
}
.section-label.light {
  color: var(--cyan);
}
.section-dark {
  background: var(--ink);
  color: white;
}
.section-heading {
  max-width: var(--content);
  margin: 0 auto 60px;
  display: flex;
  justify-content: space-between;
  align-items: flex-end;
  gap: 30px;
}
.section-heading h2 {
  margin: 0;
  font-size: clamp(42px, 5vw, 76px);
  line-height: 0.98;
  letter-spacing: -0.055em;
}
.section-heading > p {
  max-width: 410px;
  margin: 0;
  color: var(--muted);
}

/* Home hero */
.home-hero {
  min-height: 820px;
  padding: calc(var(--header-height) + 80px)
    max(28px, calc((100vw - var(--content)) / 2)) 72px;
  display: grid;
  grid-template-columns: 1.05fr 0.95fr;
  align-items: center;
  background: var(--ink);
  color: white;
  overflow: hidden;
}
.hero-copy {
  position: relative;
  z-index: 2;
  max-width: 710px;
}
.hero-copy h1 {
  margin: 0 0 32px;
  font-size: clamp(70px, 7vw, 112px);
  line-height: 0.82;
  letter-spacing: -0.075em;
}
.hero-copy h1 em {
  color: var(--cyan);
  font-size: 0.93em;
}
.hero-lead {
  max-width: 590px;
  color: var(--muted-dark);
  font-size: 18px;
}
.button-row {
  margin-top: 38px;
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}
.hero-meta {
  margin-top: 64px;
  display: flex;
  gap: 25px;
  color: rgba(255, 255, 255, 0.58);
  font-size: 10px;
  letter-spacing: 0.09em;
  text-transform: uppercase;
}
.hero-meta span {
  display: flex;
  align-items: center;
  gap: 8px;
}
.hero-meta b {
  color: var(--cyan);
}
.hero-visual {
  position: relative;
  min-height: 640px;
  margin-right: -80px;
}
.circuit-grid {
  position: absolute;
  inset: 2% 0 0 0;
  opacity: 0.28;
  background-image:
    linear-gradient(rgba(91, 231, 239, 0.12) 1px, transparent 1px),
    linear-gradient(90deg, rgba(91, 231, 239, 0.12) 1px, transparent 1px);
  background-size: 42px 42px;
  transform: perspective(700px) rotateY(-12deg) rotateZ(-5deg);
  mask-image: radial-gradient(circle, black, transparent 68%);
}
.orbit {
  position: absolute;
  border: 1px solid rgba(91, 231, 239, 0.22);
  border-radius: 50%;
  animation: rotate 18s linear infinite;
}
.orbit::after {
  content: "";
  position: absolute;
  width: 9px;
  height: 9px;
  top: 20%;
  left: 2%;
  border-radius: 50%;
  background: var(--lime);
  box-shadow: 0 0 16px var(--lime);
}
.orbit-one {
  width: 520px;
  height: 520px;
  top: 70px;
  left: 40px;
}
.orbit-two {
  width: 360px;
  height: 360px;
  top: 150px;
  left: 120px;
  animation-direction: reverse;
  animation-duration: 13s;
}
.device {
  position: absolute;
  z-index: 3;
  top: 60px;
  right: 90px;
  width: 248px;
  height: 500px;
  padding: 12px;
  border: 2px solid #54646a;
  border-radius: 38px;
  background: linear-gradient(145deg, #24353c, #0d171b);
  box-shadow:
    -35px 45px 90px rgba(0, 0, 0, 0.5),
    inset 0 0 0 1px rgba(255, 255, 255, 0.12);
  transform: rotate(8deg);
  animation: float 6s var(--ease) infinite;
}
.speaker {
  position: absolute;
  z-index: 2;
  top: 22px;
  left: 50%;
  width: 60px;
  height: 5px;
  background: #071015;
  border-radius: 4px;
  transform: translateX(-50%);
}
.device-screen {
  height: 100%;
  padding: 66px 20px 25px;
  display: flex;
  flex-direction: column;
  align-items: center;
  border-radius: 28px;
  background:
    radial-gradient(
      circle at 50% 32%,
      rgba(91, 231, 239, 0.2),
      transparent 33%
    ),
    linear-gradient(180deg, #0c242b, #081216);
}
.device-screen .signal-dot {
  width: 7px;
  height: 7px;
  margin-bottom: 135px;
  background: var(--lime);
  border-radius: 50%;
  box-shadow: 0 0 14px var(--lime);
}
.device-screen strong {
  color: var(--cyan);
  font-size: 13px;
  letter-spacing: 0.18em;
}
.device-screen small {
  margin-top: 8px;
  color: rgba(255, 255, 255, 0.45);
  font-size: 8px;
  letter-spacing: 0.1em;
}
.wave {
  height: 90px;
  margin-top: 34px;
  display: flex;
  align-items: center;
  gap: 9px;
  transform: rotate(90deg);
}
.wave i {
  display: block;
  border: 2px solid var(--cyan);
  border-left: 0;
  border-bottom: 0;
  border-radius: 0 100% 0 0;
  animation: pulse 1.8s infinite;
}
.wave i:nth-child(1) {
  width: 18px;
  height: 18px;
}
.wave i:nth-child(2) {
  width: 34px;
  height: 34px;
  animation-delay: 0.2s;
}
.wave i:nth-child(3) {
  width: 52px;
  height: 52px;
  animation-delay: 0.4s;
}
.nfc-card {
  position: absolute;
  z-index: 5;
  left: 10px;
  top: 295px;
  width: 300px;
  height: 184px;
  padding: 24px;
  display: flex;
  flex-direction: column;
  border: 1px solid rgba(255, 255, 255, 0.35);
  border-radius: 14px;
  background: linear-gradient(
    135deg,
    rgba(200, 255, 88, 0.95),
    rgba(91, 231, 239, 0.88)
  );
  color: var(--ink);
  box-shadow: 0 35px 60px rgba(0, 0, 0, 0.35);
  transform: rotate(-12deg);
  animation: cardFloat 6s var(--ease) infinite;
}
.nfc-card small {
  font-size: 9px;
  font-weight: 800;
  letter-spacing: 0.18em;
}
.nfc-card strong {
  margin-top: 40px;
  font-size: 30px;
  letter-spacing: -0.04em;
}
.nfc-card span {
  margin-top: auto;
  font-size: 8px;
  letter-spacing: 0.13em;
}
.data-chip {
  position: absolute;
  z-index: 6;
  min-width: 110px;
  padding: 12px 14px;
  display: flex;
  justify-content: space-between;
  border: 1px solid rgba(91, 231, 239, 0.3);
  background: rgba(7, 16, 21, 0.78);
  color: var(--cyan);
  font-size: 9px;
  letter-spacing: 0.1em;
  backdrop-filter: blur(10px);
}
.data-chip b {
  color: var(--lime);
  font-size: 8px;
}
.chip-a {
  top: 120px;
  left: 0;
}
.chip-b {
  right: 30px;
  bottom: 70px;
}
.capability-rail {
  min-height: 96px;
  padding: 20px max(28px, calc((100vw - var(--content)) / 2));
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 25px;
  overflow: hidden;
  background: var(--cyan);
  color: var(--ink);
  white-space: nowrap;
}
.capability-rail span {
  font-size: 12px;
  font-weight: 900;
  letter-spacing: 0.12em;
}
.capability-rail i {
  flex: 0 0 4px;
  width: 4px;
  height: 4px;
  background: var(--ink);
  border-radius: 50%;
}

.intro-section {
  max-width: var(--content);
  margin: 0 auto;
  padding: 130px 28px;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 10%;
}
.intro-section h2,
.story-intro h2 {
  margin: 0;
  font-size: clamp(44px, 5vw, 72px);
  line-height: 1;
  letter-spacing: -0.055em;
}
.intro-copy {
  padding-top: 44px;
}
.intro-copy p {
  color: var(--muted);
  font-size: 17px;
}
.intro-copy .text-link {
  margin-top: 20px;
}
.services-preview {
  padding: 120px max(28px, calc((100vw - var(--content)) / 2));
}
.service-grid {
  max-width: var(--content);
  margin: auto;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  border-top: 1px solid var(--line-dark);
  border-left: 1px solid var(--line-dark);
}
.service-grid article {
  position: relative;
  min-height: 440px;
  padding: 30px;
  display: flex;
  flex-direction: column;
  border-right: 1px solid var(--line-dark);
  border-bottom: 1px solid var(--line-dark);
  overflow: hidden;
  transition: background 0.3s;
}
.service-grid article:hover {
  background: var(--panel);
}
.service-grid article > span {
  color: var(--cyan);
  font-size: 10px;
}
.service-grid article h3 {
  margin-top: auto;
  margin-bottom: 14px;
  font-size: 30px;
  letter-spacing: -0.04em;
}
.service-grid article p {
  color: var(--muted-dark);
}
.service-grid article > a {
  position: absolute;
  top: 24px;
  right: 28px;
  color: var(--cyan);
  font-size: 22px;
}
.card-icon {
  position: relative;
  width: 130px;
  height: 130px;
  margin: 65px auto 25px;
  opacity: 0.85;
}
.nfc-icon {
  border: 1px solid rgba(91, 231, 239, 0.4);
  border-radius: 50%;
  box-shadow: inset 0 0 40px rgba(91, 231, 239, 0.08);
}
.nfc-icon::before,
.nfc-icon::after {
  content: "";
  position: absolute;
  border: 2px solid var(--cyan);
  border-left: 0;
  border-bottom: 0;
  border-radius: 0 100% 0 0;
  transform: rotate(45deg);
}
.nfc-icon::before {
  width: 34px;
  height: 34px;
  left: 40px;
  top: 42px;
}
.nfc-icon::after {
  width: 60px;
  height: 60px;
  left: 27px;
  top: 29px;
}
.chip-icon {
  border: 1px solid var(--cyan);
}
.chip-icon::before {
  content: "";
  position: absolute;
  inset: 22px;
  border: 1px solid var(--lime);
  background: rgba(200, 255, 88, 0.06);
}
.chip-icon::after {
  content: "";
  position: absolute;
  inset: -8px;
  background: repeating-linear-gradient(
    90deg,
    transparent 0 15px,
    var(--cyan) 15px 18px,
    transparent 18px 30px
  );
  mask:
    linear-gradient(#000 0 0) top/100% 8px no-repeat,
    linear-gradient(#000 0 0) bottom/100% 8px no-repeat;
}
.iot-icon {
  border: 1px solid rgba(91, 231, 239, 0.25);
  border-radius: 50%;
}
.iot-icon::before {
  content: "";
  position: absolute;
  inset: 42px;
  background: var(--lime);
  border-radius: 50%;
  box-shadow:
    0 0 25px var(--lime),
    44px -20px 0 -5px var(--cyan),
    -38px 34px 0 -5px var(--cyan),
    -32px -40px 0 -5px var(--cyan);
}
.iot-icon::after {
  content: "";
  position: absolute;
  inset: 20px;
  border: 1px dashed var(--cyan);
  border-radius: 50%;
}
.product-preview {
  padding: 130px max(28px, calc((100vw - var(--content)) / 2));
}
.product-grid {
  max-width: var(--content);
  margin: auto;
  display: grid;
  grid-template-columns: 1.2fr 1fr 1fr;
  gap: 18px;
}
.product-card {
  min-height: 520px;
  padding: 28px;
  display: flex;
  flex-direction: column;
  background: white;
  border: 1px solid var(--line);
}
.feature-product {
  background: var(--cyan);
}
.product-card small {
  font-size: 9px;
  font-weight: 800;
  letter-spacing: 0.16em;
}
.product-card h3 {
  margin: auto 0 10px;
  font-size: 46px;
  letter-spacing: -0.06em;
}
.product-card p {
  color: var(--muted);
}
.product-art {
  position: relative;
  height: 235px;
  margin-bottom: 24px;
  display: grid;
  place-items: center;
}
.tag-art span {
  width: 150px;
  height: 150px;
  border-radius: 50%;
  background: var(--ink);
  box-shadow: 0 25px 45px rgba(0, 0, 0, 0.25);
}
.tag-art span::after {
  content: "C";
  height: 100%;
  display: grid;
  place-items: center;
  color: var(--cyan);
  font-size: 60px;
  font-weight: 800;
}
.tag-art i {
  position: absolute;
  width: 190px;
  height: 190px;
  border: 1px solid rgba(7, 16, 21, 0.25);
  border-radius: 50%;
  animation: pulse 2s infinite;
}
.node-art span {
  width: 170px;
  height: 120px;
  background: var(--ink);
  border-radius: 8px;
  box-shadow: 0 25px 45px rgba(0, 0, 0, 0.25);
}
.node-art i,
.node-art b {
  position: absolute;
  border-radius: 50%;
}
.node-art i {
  width: 10px;
  height: 10px;
  background: var(--lime);
  box-shadow: 0 0 12px var(--lime);
  top: 85px;
  right: 31%;
}
.node-art b {
  width: 80px;
  height: 80px;
  border: 1px solid var(--cyan);
}
.reader-art span {
  width: 160px;
  height: 115px;
  border-radius: 14px;
  background: linear-gradient(145deg, #203039, #071015);
  box-shadow: 0 25px 45px rgba(0, 0, 0, 0.28);
}
.reader-art span::after {
  content: "";
  position: absolute;
  width: 34px;
  height: 34px;
  left: 50%;
  top: 50%;
  border: 2px solid var(--cyan);
  border-radius: 50%;
  transform: translate(-50%, -50%);
}
.reader-art i {
  position: absolute;
  width: 200px;
  height: 150px;
  border: 1px solid rgba(8, 126, 140, 0.2);
  border-radius: 50%;
}
.process-section {
  padding: 120px max(28px, calc((100vw - var(--content)) / 2));
}
.process-section > header {
  max-width: var(--content);
  margin: 0 auto 70px;
}
.process-section h2 {
  font-size: clamp(50px, 6vw, 86px);
  letter-spacing: -0.06em;
}
.process-line {
  max-width: var(--content);
  margin: auto;
  display: grid;
  grid-template-columns: repeat(4, 1fr);
}
.process-line article {
  position: relative;
  padding: 32px 28px;
  border-top: 1px solid var(--line-dark);
  border-right: 1px solid var(--line-dark);
}
.process-line article:first-child {
  border-left: 1px solid var(--line-dark);
}
.process-line span {
  display: grid;
  place-items: center;
  width: 38px;
  height: 38px;
  margin-top: -52px;
  background: var(--ink);
  border: 1px solid var(--cyan);
  border-radius: 50%;
  color: var(--cyan);
  font-size: 10px;
}
.process-line h3 {
  margin-top: 45px;
  font-size: 26px;
}
.process-line p {
  color: var(--muted-dark);
  font-size: 14px;
}
.closing-cta {
  min-height: 560px;
  padding: 100px 28px;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  background:
    radial-gradient(
      circle at 50% 100%,
      rgba(91, 231, 239, 0.22),
      transparent 40%
    ),
    var(--cyan-dark);
  color: white;
}
.closing-cta h2 {
  margin: 0 0 45px;
  font-size: clamp(50px, 6.5vw, 92px);
  line-height: 0.96;
  letter-spacing: -0.06em;
}
.closing-cta h2 em {
  color: var(--lime);
}

/* Shared inner-page sections */
.page-hero {
  min-height: 690px;
  padding: calc(var(--header-height) + 100px)
    max(28px, calc((100vw - var(--content)) / 2)) 90px;
  display: grid;
  grid-template-columns: 1.05fr 0.95fr;
  align-items: center;
  background: var(--ink);
  color: white;
  overflow: hidden;
}
.page-hero > div:first-child {
  position: relative;
  z-index: 2;
  max-width: 790px;
}
.page-hero h1,
.nfc-hero h1,
.contact-copy h1,
.start-section aside h1,
.not-found h1 {
  margin: 0 0 30px;
  font-size: clamp(70px, 8vw, 118px);
  line-height: 0.85;
  letter-spacing: -0.075em;
}
.page-hero h1 em,
.nfc-hero h1 em,
.contact-copy h1 em,
.start-section aside h1 em,
.not-found h1 em {
  color: var(--cyan);
}
.page-hero > div:first-child > p:last-child {
  max-width: 620px;
  color: var(--muted-dark);
  font-size: 18px;
}
.story-signal,
.service-radar {
  position: relative;
  width: 430px;
  height: 430px;
  margin: auto;
  border: 1px solid rgba(91, 231, 239, 0.18);
  border-radius: 50%;
}
.story-signal span {
  position: absolute;
  inset: 0;
  display: grid;
  place-items: center;
  color: var(--cyan);
  font-size: 190px;
  font-weight: 800;
}
.story-signal i,
.service-radar i {
  position: absolute;
  inset: 12%;
  border: 1px solid rgba(91, 231, 239, 0.2);
  border-radius: 50%;
  animation: pulse 3s infinite;
}
.story-signal i:nth-child(2),
.service-radar i:nth-child(2) {
  inset: 25%;
  animation-delay: 0.5s;
}
.story-signal i:nth-child(3),
.service-radar i:nth-child(3) {
  inset: 38%;
  animation-delay: 1s;
}
.story-intro {
  max-width: var(--content);
  margin: auto;
  padding: 130px 28px;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 10%;
}
.story-intro > div:last-child {
  padding-top: 45px;
  color: var(--muted);
  font-size: 17px;
}
.story-stats {
  padding: 0 max(28px, calc((100vw - var(--content)) / 2));
  display: grid;
  grid-template-columns: repeat(4, 1fr);
}
.story-stats div {
  min-height: 235px;
  padding: 35px;
  display: flex;
  flex-direction: column;
  justify-content: center;
  border-right: 1px solid var(--line-dark);
}
.story-stats div:first-child {
  border-left: 1px solid var(--line-dark);
}
.story-stats strong {
  color: var(--cyan);
  font-size: 64px;
  letter-spacing: -0.06em;
}
.story-stats span {
  max-width: 160px;
  margin-top: 15px;
  color: var(--muted-dark);
  font-size: 12px;
  line-height: 1.5;
  text-transform: uppercase;
  letter-spacing: 0.08em;
}
.principles {
  max-width: var(--content);
  margin: auto;
  padding: 130px 28px;
}
.principles header {
  max-width: 750px;
}
.principles h2 {
  font-size: clamp(44px, 5vw, 76px);
  line-height: 1;
  letter-spacing: -0.055em;
}
.principle-grid {
  margin-top: 70px;
  display: grid;
  grid-template-columns: 1fr 1fr;
  border-top: 1px solid var(--line);
  border-left: 1px solid var(--line);
}
.principle-grid article {
  min-height: 270px;
  padding: 38px;
  border-right: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}
.principle-grid span,
.service-number {
  color: var(--cyan-dark);
  font-size: 11px;
  font-weight: 800;
}
.principle-grid h3 {
  margin-top: 65px;
  font-size: 28px;
}
.principle-grid p {
  color: var(--muted);
}
.split-cta {
  padding: 110px max(28px, calc((100vw - var(--content)) / 2));
  display: grid;
  grid-template-columns: 1.3fr 0.7fr;
  gap: 10%;
}
.split-cta h2 {
  font-size: clamp(45px, 5vw, 74px);
  letter-spacing: -0.055em;
}
.split-cta > div:last-child {
  padding-top: 45px;
}
.split-cta p {
  color: var(--muted-dark);
}
.split-cta .button {
  margin-top: 25px;
}
.service-radar::after {
  content: "";
  position: absolute;
  left: 50%;
  top: 50%;
  width: 4px;
  height: 4px;
  background: var(--lime);
  border-radius: 50%;
  box-shadow:
    130px -60px 0 var(--cyan),
    -110px 90px 0 var(--cyan),
    80px 130px 0 var(--cyan);
}
.service-radar::before {
  content: "";
  position: absolute;
  left: 50%;
  top: 50%;
  width: 46%;
  height: 1px;
  background: linear-gradient(90deg, var(--cyan), transparent);
  transform-origin: left;
  animation: radar 4s linear infinite;
}
.service-list {
  max-width: var(--content);
  margin: auto;
  padding: 60px 28px 120px;
}
.service-list > article {
  padding: 90px 0;
  display: grid;
  grid-template-columns: 70px 1fr 360px;
  gap: 50px;
  border-bottom: 1px solid var(--line);
}
.service-list h2 {
  font-size: clamp(42px, 5vw, 68px);
  letter-spacing: -0.055em;
}
.service-list p {
  max-width: 650px;
  color: var(--muted);
}
.service-list ul,
.catalog-grid ul {
  padding: 0;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px 25px;
  list-style: none;
}
.service-list li,
.catalog-grid li {
  position: relative;
  padding-left: 16px;
  color: var(--muted);
  font-size: 13px;
}
.service-list li::before,
.catalog-grid li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 8px;
  width: 5px;
  height: 5px;
  background: var(--cyan-dark);
  border-radius: 50%;
}
.service-list .text-link {
  margin-top: 30px;
}
.service-graphic {
  position: relative;
  min-height: 300px;
  align-self: center;
  background: var(--ink);
}
.nfc-service i {
  position: absolute;
  border: 2px solid var(--cyan);
  border-left: 0;
  border-bottom: 0;
  border-radius: 0 100% 0 0;
  transform: rotate(45deg);
}
.nfc-service i:nth-child(1) {
  width: 45px;
  height: 45px;
  left: 135px;
  top: 125px;
}
.nfc-service i:nth-child(2) {
  width: 90px;
  height: 90px;
  left: 112px;
  top: 102px;
}
.nfc-service i:nth-child(3) {
  width: 145px;
  height: 145px;
  left: 85px;
  top: 75px;
}
.chip-service span {
  position: absolute;
  inset: 70px;
  background: var(--panel);
  border: 1px solid var(--cyan);
}
.chip-service span::after {
  content: "C";
  position: absolute;
  inset: 20px;
  display: grid;
  place-items: center;
  border: 1px solid rgba(91, 231, 239, 0.25);
  color: var(--lime);
  font-size: 48px;
  font-weight: 800;
}
.iot-service i {
  position: absolute;
  width: 12px;
  height: 12px;
  background: var(--cyan);
  border-radius: 50%;
  box-shadow: 0 0 14px var(--cyan);
}
.iot-service i:nth-child(1) {
  left: 50%;
  top: 50%;
  background: var(--lime);
}
.iot-service i:nth-child(2) {
  left: 20%;
  top: 25%;
}
.iot-service i:nth-child(3) {
  right: 18%;
  top: 30%;
}
.iot-service i:nth-child(4) {
  left: 30%;
  bottom: 15%;
}
.iot-service::after {
  content: "";
  position: absolute;
  inset: 45px;
  border: 1px dashed rgba(91, 231, 239, 0.4);
  border-radius: 50%;
}
.pcb-service span {
  position: absolute;
  inset: 55px;
  border: 1px solid var(--cyan);
  background:
    linear-gradient(
      90deg,
      transparent 48%,
      rgba(91, 231, 239, 0.18) 49% 51%,
      transparent 52%
    ),
    linear-gradient(
      transparent 48%,
      rgba(91, 231, 239, 0.18) 49% 51%,
      transparent 52%
    );
}
.pcb-service i,
.pcb-service b {
  position: absolute;
  width: 22px;
  height: 22px;
  border: 1px solid var(--lime);
}
.pcb-service i {
  top: 85px;
  left: 90px;
}
.pcb-service b {
  bottom: 80px;
  right: 85px;
}
.deploy-service i {
  position: absolute;
  width: 110px;
  height: 170px;
  top: 65px;
  border: 1px solid var(--cyan);
  border-radius: 10px;
}
.deploy-service i:first-child {
  left: 55px;
}
.deploy-service i:nth-child(2) {
  right: 55px;
}
.deploy-service span {
  position: absolute;
  left: 50%;
  top: 50%;
  width: 75px;
  height: 1px;
  background: var(--lime);
  box-shadow: 0 0 12px var(--lime);
  transform: translate(-50%, -50%);
}
.product-stack {
  position: relative;
  width: 430px;
  height: 420px;
  margin: auto;
}
.product-stack i {
  position: absolute;
  width: 270px;
  height: 170px;
  border-radius: 15px;
  background: linear-gradient(135deg, var(--cyan), var(--lime));
  box-shadow: 0 30px 55px rgba(0, 0, 0, 0.35);
}
.product-stack i:nth-child(1) {
  left: 10px;
  top: 150px;
  transform: rotate(-13deg);
}
.product-stack i:nth-child(2) {
  right: 0;
  top: 90px;
  background: linear-gradient(145deg, #34474e, #111e23);
  transform: rotate(8deg);
}
.product-stack i:nth-child(3) {
  left: 70px;
  top: 20px;
  width: 160px;
  height: 160px;
  border-radius: 50%;
  background: var(--panel);
  border: 1px solid var(--cyan);
}
.catalog-section {
  padding: 120px max(28px, calc((100vw - var(--content)) / 2));
}
.catalog-section > header {
  max-width: var(--content);
  margin: 0 auto 60px;
}
.catalog-section h2,
.use-cases h2,
.nfc-steps h2 {
  font-size: clamp(48px, 5vw, 76px);
  letter-spacing: -0.055em;
}
.catalog-grid {
  max-width: var(--content);
  margin: auto;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 18px;
}
.catalog-grid article {
  min-height: 650px;
  padding: 28px;
  display: flex;
  flex-direction: column;
  background: white;
  border: 1px solid var(--line);
}
.catalog-grid article > small {
  font-size: 9px;
  font-weight: 800;
  letter-spacing: 0.16em;
}
.catalog-grid h3 {
  margin: 22px 0 12px;
  font-size: 46px;
  letter-spacing: -0.055em;
}
.catalog-grid p {
  color: var(--muted);
}
.catalog-grid ul {
  grid-template-columns: 1fr;
  margin: 16px 0 32px;
}
.catalog-grid .button {
  margin-top: auto;
}
.catalog-art {
  position: relative;
  height: 250px;
  margin-bottom: 32px;
  display: grid;
  place-items: center;
}
.round-tag span {
  width: 160px;
  height: 160px;
  display: grid;
  place-items: center;
  border-radius: 50%;
  background: var(--ink);
  color: var(--cyan);
  font-size: 70px;
  font-weight: 800;
  box-shadow: 0 30px 50px rgba(0, 0, 0, 0.25);
}
.smart-card {
  width: 280px;
  height: 170px;
  margin: 40px auto 72px;
  padding: 22px;
  display: block;
  border-radius: 12px;
  background: linear-gradient(135deg, var(--cyan), var(--lime));
  box-shadow: 0 30px 50px rgba(0, 0, 0, 0.22);
  transform: rotate(-5deg);
}
.smart-card span {
  font-size: 9px;
  font-weight: 800;
  letter-spacing: 0.15em;
}
.smart-card i {
  position: absolute;
  right: 25px;
  bottom: 25px;
  width: 45px;
  height: 45px;
  border: 1px solid rgba(7, 16, 21, 0.4);
  border-radius: 50%;
}
.mini-reader span {
  width: 180px;
  height: 130px;
  border-radius: 15px;
  background: var(--ink);
  box-shadow: 0 30px 50px rgba(0, 0, 0, 0.25);
}
.mini-reader i {
  position: absolute;
  width: 55px;
  height: 55px;
  border: 2px solid var(--cyan);
  border-radius: 50%;
}
.mini-reader b {
  position: absolute;
  width: 8px;
  height: 8px;
  top: 72px;
  right: 30%;
  background: var(--lime);
  border-radius: 50%;
  box-shadow: 0 0 12px var(--lime);
}
.dark-cards article {
  background: var(--panel);
  border-color: var(--line-dark);
  color: white;
}
.dark-cards article p,
.dark-cards article li {
  color: var(--muted-dark);
}
.node-box span,
.controller-box span,
.gateway-box span {
  width: 180px;
  height: 130px;
  border: 1px solid var(--cyan);
  border-radius: 8px;
  background: var(--ink);
}
.node-box i {
  position: absolute;
  width: 70px;
  height: 70px;
  border: 1px solid var(--cyan);
  border-radius: 50%;
}
.node-box b {
  position: absolute;
  width: 8px;
  height: 8px;
  right: 32%;
  top: 77px;
  background: var(--lime);
  border-radius: 50%;
  box-shadow: 0 0 12px var(--lime);
}
.controller-box i {
  position: absolute;
  width: 30px;
  height: 30px;
  border: 1px solid var(--cyan);
  border-radius: 50%;
  z-index: 2;
}
.controller-box i:first-child {
  left: 35%;
  top: 42%;
}
.controller-box i:nth-child(2) {
  right: 35%;
  top: 42%;
}
.gateway-box i {
  position: absolute;
  width: 190px;
  height: 140px;
  border: 1px solid var(--cyan);
  border-radius: 8px;
}
.gateway-box b {
  position: absolute;
  width: 110px;
  height: 110px;
  border: 1px dashed var(--lime);
  border-radius: 50%;
  animation: rotate 10s linear infinite;
}
.product-note {
  max-width: var(--content);
  margin: auto;
  padding: 100px 28px;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 10%;
}
.product-note h2 {
  font-size: 50px;
  letter-spacing: -0.055em;
}
.product-note > p {
  padding-top: 30px;
  color: var(--muted);
}

/* NFC page */
.nfc-hero {
  min-height: 780px;
  padding: calc(var(--header-height) + 95px)
    max(28px, calc((100vw - var(--content)) / 2)) 80px;
  display: grid;
  grid-template-columns: 1fr 1fr;
  align-items: center;
  background: var(--ink);
  color: white;
  overflow: hidden;
}
.nfc-hero > div:first-child {
  position: relative;
  z-index: 3;
}
.nfc-hero > div:first-child > p:last-of-type {
  max-width: 600px;
  color: var(--muted-dark);
  font-size: 18px;
}
.nfc-demo {
  position: relative;
  height: 570px;
}
.demo-phone {
  position: absolute;
  z-index: 2;
  top: 25px;
  right: 80px;
  width: 270px;
  height: 520px;
  padding: 110px 25px 25px;
  text-align: center;
  border: 2px solid #516269;
  border-radius: 38px;
  background:
    radial-gradient(
      circle at 50% 30%,
      rgba(91, 231, 239, 0.2),
      transparent 35%
    ),
    #0b181d;
  transform: rotate(5deg);
  box-shadow: -40px 50px 70px rgba(0, 0, 0, 0.4);
}
.demo-phone > span {
  display: block;
  width: 12px;
  height: 12px;
  margin: 0 auto 120px;
  background: var(--lime);
  border-radius: 50%;
  box-shadow: 0 0 18px var(--lime);
}
.demo-phone p {
  color: var(--cyan);
  font-size: 10px;
  letter-spacing: 0.18em;
}
.demo-phone strong {
  display: block;
  font-size: 18px;
}
.demo-phone small {
  display: block;
  margin-top: 8px;
  color: var(--muted-dark);
}
.demo-tag {
  position: absolute;
  z-index: 4;
  left: 35px;
  top: 240px;
  width: 180px;
  height: 180px;
  display: grid;
  place-items: center;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--cyan), var(--lime));
  color: var(--ink);
  font-size: 75px;
  font-weight: 800;
  box-shadow: 0 35px 55px rgba(0, 0, 0, 0.35);
  animation: float 5s var(--ease) infinite;
}
.nfc-demo > i {
  position: absolute;
  left: 120px;
  top: 190px;
  border: 2px solid var(--cyan);
  border-left: 0;
  border-bottom: 0;
  border-radius: 0 100% 0 0;
  transform: rotate(25deg);
}
.nfc-demo > i:nth-of-type(1) {
  width: 90px;
  height: 90px;
}
.nfc-demo > i:nth-of-type(2) {
  width: 140px;
  height: 140px;
  left: 95px;
  top: 165px;
}
.nfc-demo > i:nth-of-type(3) {
  width: 200px;
  height: 200px;
  left: 65px;
  top: 135px;
}
.nfc-metrics {
  padding: 0 max(28px, calc((100vw - var(--content)) / 2));
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  background: var(--cyan);
}
.nfc-metrics div {
  min-height: 190px;
  padding: 30px;
  display: flex;
  flex-direction: column;
  justify-content: center;
  border-right: 1px solid rgba(7, 16, 21, 0.2);
}
.nfc-metrics strong {
  font-size: 50px;
  letter-spacing: -0.06em;
}
.nfc-metrics span {
  max-width: 150px;
  font-size: 11px;
  line-height: 1.4;
  text-transform: uppercase;
  letter-spacing: 0.08em;
}
.use-cases,
.nfc-steps {
  max-width: var(--content);
  margin: auto;
  padding: 120px 28px;
}
.use-cases header,
.nfc-steps header {
  max-width: 760px;
  margin-bottom: 65px;
}
.use-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  border-top: 1px solid var(--line);
  border-left: 1px solid var(--line);
}
.use-grid article {
  min-height: 260px;
  padding: 30px;
  border-right: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}
.use-grid span,
.nfc-steps article span {
  color: var(--cyan-dark);
  font-size: 11px;
  font-weight: 800;
}
.use-grid h3 {
  margin-top: 65px;
  font-size: 25px;
}
.use-grid p {
  color: var(--muted);
  font-size: 14px;
}
.nfc-system {
  padding: 110px max(28px, calc((100vw - var(--content)) / 2));
  display: grid;
  grid-template-columns: 0.8fr 1.2fr;
  gap: 8%;
  align-items: center;
}
.nfc-system h2 {
  font-size: 68px;
  letter-spacing: -0.06em;
}
.nfc-system p {
  color: var(--muted-dark);
}
.system-flow {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
}
.system-flow span {
  min-height: 90px;
  padding: 15px;
  display: grid;
  place-items: center;
  flex: 1;
  border: 1px solid var(--cyan);
  color: var(--cyan);
  font-size: 9px;
  font-weight: 800;
  text-align: center;
  letter-spacing: 0.1em;
}
.system-flow i {
  color: var(--lime);
  font-style: normal;
}
.nfc-steps > div {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
}
.nfc-steps article {
  padding: 30px;
  border-top: 1px solid var(--line);
  border-right: 1px solid var(--line);
}
.nfc-steps article:first-child {
  border-left: 1px solid var(--line);
}
.nfc-steps h3 {
  margin-top: 55px;
  font-size: 25px;
}
.nfc-steps p {
  color: var(--muted);
  font-size: 14px;
}

/* Forms */
.contact-section,
.start-section {
  min-height: 850px;
  padding: calc(var(--header-height) + 90px)
    max(28px, calc((100vw - var(--content)) / 2)) 90px;
  display: grid;
  grid-template-columns: 0.85fr 1.15fr;
  gap: 8%;
  background: var(--ink);
  color: white;
}
.contact-copy,
.start-section aside {
  padding-top: 40px;
}
.contact-copy h1,
.start-section aside h1 {
  font-size: clamp(65px, 7vw, 100px);
}
.contact-copy > p:nth-of-type(2),
.start-section aside > p:nth-of-type(2) {
  max-width: 510px;
  color: var(--muted-dark);
}
.contact-details {
  margin-top: 55px;
  display: grid;
  gap: 7px;
}
.contact-details small {
  margin-top: 20px;
  color: var(--cyan);
  font-size: 9px;
  font-weight: 800;
  letter-spacing: 0.16em;
}
.contact-details a,
.contact-details span {
  font-size: 16px;
}
.contact-form,
.project-form {
  padding: 42px;
  background: var(--paper);
  color: var(--ink);
  align-self: start;
}
.contact-form header {
  margin-bottom: 32px;
}
.contact-form h2 {
  font-size: 37px;
  letter-spacing: -0.045em;
}
.contact-form label,
.project-form label {
  display: grid;
  gap: 9px;
  margin-bottom: 20px;
  font-size: 10px;
  font-weight: 800;
  letter-spacing: 0.1em;
  text-transform: uppercase;
}
.contact-form input,
.contact-form select,
.contact-form textarea,
.project-form input,
.project-form select,
.project-form textarea {
  width: 100%;
  min-height: 52px;
  padding: 13px 0;
  border: 0;
  border-bottom: 1px solid rgba(7, 16, 21, 0.28);
  border-radius: 0;
  outline: 0;
  background: transparent;
  color: var(--ink);
  font-size: 15px;
  font-weight: 400;
  letter-spacing: 0;
  text-transform: none;
  transition: border-color 0.2s;
}
.contact-form textarea,
.project-form textarea {
  resize: vertical;
}
.contact-form input:focus,
.contact-form select:focus,
.contact-form textarea:focus,
.project-form input:focus,
.project-form select:focus,
.project-form textarea:focus {
  border-color: var(--cyan-dark);
}
.form-columns {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 22px;
}
.contact-form > small {
  display: block;
  margin-top: 18px;
  color: var(--muted);
  font-size: 10px;
}
.honeypot {
  position: absolute !important;
  left: -99999px !important;
  width: 1px !important;
  height: 1px !important;
  opacity: 0 !important;
}
.form-message {
  min-height: 20px;
  margin: 0 0 14px;
  color: #a4132c;
  font-size: 12px;
}
.form-message.success,
.form-message.error {
  padding: 12px 14px;
  border: 1px solid;
}
.form-message.success {
  border-color: #37a978;
  background: #eafff4;
  color: #11633f;
}
.form-message.error {
  border-color: #e87587;
  background: #fff1f3;
  color: #a4132c;
}
.start-points {
  margin-top: 45px;
  display: grid;
  gap: 12px;
  color: var(--cyan);
  font-size: 12px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}
.project-form > header {
  display: flex;
  justify-content: space-between;
  color: var(--muted);
  font-size: 10px;
  letter-spacing: 0.1em;
}
.project-form > header b {
  color: var(--ink);
}
.form-progress {
  height: 2px;
  margin: 16px 0 36px;
  background: rgba(7, 16, 21, 0.12);
}
.form-progress i {
  display: block;
  width: 25%;
  height: 100%;
  background: var(--cyan-dark);
  transition: width 0.4s var(--ease);
}
.form-step {
  display: none;
}
.form-step.active {
  display: block;
  animation: stepIn 0.45s var(--ease);
}
.form-step > small {
  color: var(--cyan-dark);
  font-size: 9px;
  font-weight: 800;
  letter-spacing: 0.16em;
}
.form-step h2 {
  margin: 18px 0 30px;
  font-size: 34px;
  letter-spacing: -0.045em;
}
.option-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 10px;
}
.option-grid label {
  margin: 0;
  display: block;
  cursor: pointer;
}
.option-grid input {
  position: absolute;
  opacity: 0;
  width: 1px;
  height: 1px;
}
.option-grid span {
  min-height: 67px;
  padding: 15px;
  display: flex;
  align-items: center;
  border: 1px solid rgba(7, 16, 21, 0.18);
  font-size: 11px;
  line-height: 1.35;
  letter-spacing: 0.02em;
  text-transform: none;
  transition: 0.2s;
}
.option-grid span:hover,
.option-grid input:checked + span {
  border-color: var(--cyan-dark);
  background: rgba(91, 231, 239, 0.2);
}
.check-label {
  display: flex !important;
  grid-template-columns: auto 1fr;
  align-items: center;
  gap: 12px !important;
  color: var(--muted);
  font-size: 10px !important;
  letter-spacing: 0.02em !important;
  text-transform: none !important;
}
.check-label input {
  width: 17px;
  height: 17px;
  min-height: 17px;
}
.form-actions {
  margin-top: 25px;
  display: flex;
  justify-content: space-between;
  gap: 12px;
}
.back-button {
  border: 0;
  background: transparent;
  color: var(--muted);
  cursor: pointer;
}
.project-success {
  padding: 65px 20px;
  text-align: center;
}
.project-success h2 {
  font-size: 50px;
  letter-spacing: -0.055em;
}
.project-success p {
  color: var(--muted);
}

/* Footer, chatbot and 404 */
.site-footer {
  padding: 80px max(28px, calc((100vw - var(--content)) / 2)) 28px;
  background: #050b0e;
  color: white;
}
.footer-main {
  max-width: var(--content);
  margin: auto;
  display: grid;
  grid-template-columns: 2fr repeat(3, 1fr);
  gap: 55px;
}
.footer-brand p {
  max-width: 320px;
  margin-top: 25px;
  color: var(--muted-dark);
  font-size: 14px;
}
.footer-links {
  display: flex;
  flex-direction: column;
  gap: 13px;
  color: var(--muted-dark);
  font-size: 12px;
}
.footer-links strong {
  margin-bottom: 10px;
  color: white;
  font-size: 10px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
}
.footer-links a:hover {
  color: var(--cyan);
}
.footer-bottom {
  max-width: var(--content);
  margin: 70px auto 0;
  padding-top: 22px;
  display: flex;
  justify-content: space-between;
  gap: 25px;
  border-top: 1px solid var(--line-dark);
  color: rgba(255, 255, 255, 0.45);
  font-size: 9px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}
.chat-launcher {
  position: fixed;
  z-index: 120;
  right: 22px;
  bottom: 22px;
  width: 58px;
  height: 58px;
  border: 1px solid rgba(255, 255, 255, 0.35);
  border-radius: 50%;
  background: var(--cyan);
  color: var(--ink);
  cursor: pointer;
  box-shadow: 0 16px 40px rgba(0, 0, 0, 0.25);
}
.chat-icon {
  position: relative;
  z-index: 2;
  font-weight: 900;
}
.chat-pulse {
  position: absolute;
  inset: -1px;
  border: 1px solid var(--cyan);
  border-radius: 50%;
  animation: chatPulse 2s infinite;
}
.chat-panel {
  position: fixed;
  z-index: 119;
  right: 22px;
  bottom: 92px;
  width: min(370px, calc(100vw - 28px));
  overflow: hidden;
  background: white;
  color: var(--ink);
  box-shadow: 0 25px 70px rgba(0, 0, 0, 0.32);
  border: 1px solid rgba(7, 16, 21, 0.15);
}
.chat-header {
  padding: 18px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  background: var(--ink);
  color: white;
}
.chat-header > div {
  display: grid;
  grid-template-columns: auto 1fr;
  column-gap: 10px;
}
.chat-header i {
  grid-row: 1/3;
  width: 11px;
  height: 11px;
  align-self: center;
  background: var(--lime);
  border-radius: 50%;
  box-shadow: 0 0 12px var(--lime);
}
.chat-header strong {
  font-size: 14px;
}
.chat-header small {
  color: var(--muted-dark);
  font-size: 9px;
}
.chat-header button {
  border: 0;
  background: none;
  color: white;
  font-size: 24px;
  cursor: pointer;
}
.chat-messages {
  height: 260px;
  padding: 18px;
  overflow-y: auto;
  background: #f6f7f4;
}
.chat-messages p {
  max-width: 88%;
  margin: 0 0 10px;
  padding: 11px 13px;
  font-size: 12px;
  line-height: 1.5;
}
.chat-messages .bot {
  background: white;
  border: 1px solid var(--line);
}
.chat-messages .user {
  margin-left: auto;
  background: var(--cyan);
}
.chat-prompts {
  padding: 10px 14px;
  display: flex;
  gap: 6px;
  overflow-x: auto;
  border-top: 1px solid var(--line);
}
.chat-prompts button {
  padding: 7px 9px;
  border: 1px solid var(--line);
  background: white;
  font-size: 9px;
  white-space: nowrap;
  cursor: pointer;
}
.chat-form {
  display: grid;
  grid-template-columns: 1fr 47px;
  border-top: 1px solid var(--line);
}
.chat-form input {
  min-width: 0;
  padding: 15px;
  border: 0;
  outline: 0;
}
.chat-form button {
  border: 0;
  background: var(--cyan);
  font-weight: 900;
  cursor: pointer;
}
.not-found {
  min-height: 760px;
  padding: calc(var(--header-height) + 80px)
    max(28px, calc((100vw - var(--content)) / 2)) 80px;
  display: grid;
  grid-template-columns: 1fr 1fr;
  align-items: center;
  background: var(--ink);
  color: white;
}
.not-found > div:first-child {
  position: relative;
  z-index: 2;
}
.not-found p {
  max-width: 500px;
  color: var(--muted-dark);
}
.error-signal {
  position: relative;
  min-height: 460px;
  display: grid;
  place-items: center;
}
.error-signal strong {
  color: var(--cyan);
  font-size: 170px;
  letter-spacing: -0.08em;
}
.error-signal i {
  position: absolute;
  border: 1px solid rgba(91, 231, 239, 0.25);
  border-radius: 50%;
  animation: pulse 2.5s infinite;
}
.error-signal i:nth-child(2) {
  width: 250px;
  height: 250px;
}
.error-signal i:nth-child(3) {
  width: 350px;
  height: 350px;
  animation-delay: 0.4s;
}
.error-signal i:nth-child(4) {
  width: 450px;
  height: 450px;
  animation-delay: 0.8s;
}

[data-reveal] {
  opacity: 0;
  transform: translateY(25px);
  transition:
    opacity 0.8s var(--ease),
    transform 0.8s var(--ease);
}
[data-reveal].visible {
  opacity: 1;
  transform: none;
}
@keyframes rotate {
  to {
    transform: rotate(360deg);
  }
}
@keyframes radar {
  to {
    transform: rotate(360deg);
  }
}
@keyframes float {
  0%,
  100% {
    transform: rotate(8deg) translateY(0);
  }
  50% {
    transform: rotate(6deg) translateY(-14px);
  }
}
@keyframes cardFloat {
  0%,
  100% {
    transform: rotate(-12deg) translateY(0);
  }
  50% {
    transform: rotate(-9deg) translateY(13px);
  }
}
@keyframes pulse {
  0%,
  100% {
    opacity: 0.32;
  }
  50% {
    opacity: 1;
  }
}
@keyframes chatPulse {
  0% {
    transform: scale(1);
    opacity: 0.8;
  }
  70%,
  100% {
    transform: scale(1.45);
    opacity: 0;
  }
}
@keyframes stepIn {
  from {
    opacity: 0;
    transform: translateX(15px);
  }
  to {
    opacity: 1;
    transform: none;
  }
}

@media (max-width: 1050px) {
  .site-header {
    grid-template-columns: 1fr auto;
  }
  .main-nav {
    position: fixed;
    inset: var(--header-height) 0 auto;
    padding: 28px;
    display: none;
    flex-direction: column;
    align-items: flex-start;
    gap: 0;
    background: var(--ink);
    border-top: 1px solid var(--line-dark);
  }
  .main-nav.open {
    display: flex;
  }
  .main-nav a {
    width: 100%;
    padding: 18px 0;
    border-bottom: 1px solid var(--line-dark);
  }
  .main-nav a.active::after {
    display: none;
  }
  .menu-toggle {
    position: relative;
    width: 44px;
    height: 44px;
    display: block;
    justify-self: end;
    border: 0;
    background: none;
  }
  .menu-toggle span {
    position: absolute;
    left: 9px;
    width: 25px;
    height: 1px;
    background: white;
    transition: 0.25s;
  }
  .menu-toggle span:first-child {
    top: 17px;
  }
  .menu-toggle span:last-child {
    top: 25px;
  }
  .menu-toggle.open span:first-child {
    top: 21px;
    transform: rotate(45deg);
  }
  .menu-toggle.open span:last-child {
    top: 21px;
    transform: rotate(-45deg);
  }
  .header-cta {
    display: none;
  }
  .home-hero {
    grid-template-columns: 1fr 1fr;
  }
  .hero-visual {
    margin-right: -220px;
  }
  .product-grid {
    grid-template-columns: 1fr 1fr;
  }
  .feature-product {
    grid-column: 1/-1;
  }
  .footer-main {
    grid-template-columns: 2fr 1fr 1fr;
  }
  .footer-links:last-child {
    grid-column: 1/-1;
  }
  .service-list > article {
    grid-template-columns: 50px 1fr 280px;
  }
  .catalog-grid {
    grid-template-columns: 1fr 1fr;
  }
  .catalog-grid article:last-child {
    grid-column: 1/-1;
  }
  .contact-section,
  .start-section {
    grid-template-columns: 1fr;
  }
  .contact-copy,
  .start-section aside {
    max-width: 720px;
  }
  .story-stats {
    grid-template-columns: 1fr 1fr;
  }
  .nfc-hero {
    grid-template-columns: 1fr 1fr;
  }
  .nfc-system {
    grid-template-columns: 1fr;
  }
  .system-flow {
    margin-top: 35px;
  }
}

@media (max-width: 760px) {
  :root {
    --header-height: 72px;
  }
  .site-header {
    padding: 0 20px;
  }
  .brand {
    font-size: 13px;
  }
  .brand-symbol {
    width: 30px;
    height: 30px;
  }
  .home-hero {
    min-height: auto;
    padding: 130px 20px 60px;
    display: flex;
    flex-direction: column;
  }
  .hero-copy h1 {
    font-size: 64px;
  }
  .hero-lead {
    font-size: 15px;
  }
  .hero-meta {
    margin-top: 42px;
    flex-direction: column;
    gap: 10px;
  }
  .hero-visual {
    width: 100%;
    min-height: 500px;
    margin: 15px -80px -30px 0;
  }
  .device {
    right: 12%;
    width: 190px;
    height: 390px;
  }
  .nfc-card {
    left: 2%;
    top: 260px;
    width: 230px;
    height: 140px;
  }
  .nfc-card strong {
    margin-top: 25px;
  }
  .orbit-one {
    width: 390px;
    height: 390px;
  }
  .orbit-two {
    width: 270px;
    height: 270px;
  }
  .data-chip {
    display: none;
  }
  .capability-rail {
    min-height: 80px;
    justify-content: flex-start;
    overflow-x: auto;
  }
  .intro-section,
  .story-intro {
    padding: 80px 20px;
    grid-template-columns: 1fr;
    gap: 40px;
  }
  .intro-section h2,
  .story-intro h2 {
    font-size: 44px;
  }
  .intro-copy,
  .story-intro > div:last-child {
    padding-top: 0;
  }
  .services-preview,
  .product-preview,
  .process-section,
  .catalog-section,
  .use-cases,
  .nfc-steps,
  .principles {
    padding: 80px 20px;
  }
  .section-heading {
    margin-bottom: 40px;
    flex-direction: column;
    align-items: flex-start;
  }
  .section-heading h2 {
    font-size: 45px;
  }
  .service-grid,
  .product-grid {
    grid-template-columns: 1fr;
  }
  .feature-product {
    grid-column: auto;
  }
  .service-grid article {
    min-height: 360px;
  }
  .process-line,
  .nfc-steps > div {
    grid-template-columns: 1fr;
  }
  .process-line article,
  .nfc-steps article {
    min-height: 180px;
    border-left: 1px solid var(--line-dark);
    border-bottom: 1px solid var(--line-dark);
  }
  .process-line span {
    margin-top: 0;
  }
  .process-line h3 {
    margin-top: 25px;
  }
  .closing-cta {
    min-height: 470px;
    padding: 80px 20px;
  }
  .closing-cta h2 {
    font-size: 48px;
  }
  .page-hero {
    min-height: 680px;
    padding: 140px 20px 70px;
    grid-template-columns: 1fr;
  }
  .page-hero h1 {
    font-size: 64px;
  }
  .story-signal,
  .service-radar {
    width: 280px;
    height: 280px;
    margin-top: 40px;
  }
  .story-signal span {
    font-size: 120px;
  }
  .story-stats,
  .principle-grid {
    grid-template-columns: 1fr;
  }
  .story-stats div {
    min-height: 170px;
    border-left: 1px solid var(--line-dark);
    border-bottom: 1px solid var(--line-dark);
  }
  .principle-grid {
    border-top: 1px solid var(--line);
  }
  .split-cta {
    padding: 80px 20px;
    grid-template-columns: 1fr;
  }
  .service-list {
    padding: 25px 20px 80px;
  }
  .service-list > article {
    padding: 65px 0;
    grid-template-columns: 35px 1fr;
    gap: 15px;
  }
  .service-list h2 {
    font-size: 42px;
  }
  .service-list ul {
    grid-template-columns: 1fr;
  }
  .service-graphic {
    grid-column: 1/-1;
    min-height: 260px;
    margin-top: 25px;
  }
  .catalog-grid {
    grid-template-columns: 1fr;
  }
  .catalog-grid article:last-child {
    grid-column: auto;
  }
  .catalog-grid article {
    min-height: 610px;
  }
  .product-note {
    padding: 75px 20px;
    grid-template-columns: 1fr;
  }
  .nfc-hero {
    min-height: auto;
    padding: 140px 20px 50px;
    grid-template-columns: 1fr;
  }
  .nfc-hero h1 {
    font-size: 70px;
  }
  .nfc-demo {
    height: 500px;
    margin-right: -60px;
  }
  .demo-phone {
    right: 10%;
    width: 220px;
    height: 430px;
  }
  .demo-tag {
    left: 0;
    top: 250px;
    width: 140px;
    height: 140px;
  }
  .nfc-metrics {
    grid-template-columns: 1fr 1fr;
  }
  .nfc-metrics div {
    min-height: 150px;
  }
  .nfc-metrics strong {
    font-size: 38px;
  }
  .use-grid {
    grid-template-columns: 1fr;
  }
  .nfc-system {
    padding: 80px 20px;
  }
  .nfc-system h2 {
    font-size: 50px;
  }
  .system-flow {
    display: grid;
    grid-template-columns: 1fr;
  }
  .system-flow i {
    transform: rotate(90deg);
    text-align: center;
  }
  .nfc-steps article {
    border-color: var(--line);
  }
  .contact-section,
  .start-section {
    padding: 125px 20px 70px;
  }
  .contact-copy h1,
  .start-section aside h1 {
    font-size: 58px;
  }
  .contact-form,
  .project-form {
    padding: 24px;
  }
  .contact-form h2 {
    font-size: 31px;
  }
  .form-columns,
  .option-grid {
    grid-template-columns: 1fr;
  }
  .footer-main {
    grid-template-columns: 1fr 1fr;
    gap: 45px 25px;
  }
  .footer-brand,
  .footer-links:last-child {
    grid-column: 1/-1;
  }
  .footer-bottom {
    flex-direction: column;
  }
  .not-found {
    padding: 130px 20px 60px;
    grid-template-columns: 1fr;
  }
  .not-found h1 {
    font-size: 70px;
  }
  .error-signal {
    min-height: 370px;
  }
  .error-signal strong {
    font-size: 120px;
  }
  .error-signal i:nth-child(4) {
    width: 340px;
    height: 340px;
  }
  .chat-launcher {
    right: 14px;
    bottom: 14px;
  }
  .chat-panel {
    right: 14px;
    bottom: 82px;
  }
}

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
  [data-reveal] {
    opacity: 1;
    transform: none;
  }
}