:root {
  --ink: #07111f;
  --navy: #091a33;
  --navy-2: #0d2748;
  --cyan: #15d8ff;
  --cyan-strong: #00aeda;
  --violet: #7765ff;
  --green: #38e6aa;
  --white: #ffffff;
  --soft: #f4f8fb;
  --line: rgba(9, 26, 51, 0.12);
  --muted: #526070;
  --muted-light: #b8c7d8;
  --shadow: 0 22px 60px rgba(5, 15, 32, 0.18);
  --radius: 8px;
  --header-height: 78px;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  color: var(--ink);
  background: var(--white);
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", Arial, sans-serif;
  line-height: 1.6;
  text-rendering: optimizeLegibility;
}

body.nav-open {
  overflow: hidden;
}

img,
svg {
  display: block;
}

a {
  color: inherit;
}

p,
h1,
h2,
h3 {
  overflow-wrap: anywhere;
}

button,
input,
textarea {
  font: inherit;
}

:focus-visible {
  outline: 3px solid rgba(21, 216, 255, 0.65);
  outline-offset: 3px;
}

.skip-link {
  position: fixed;
  left: 16px;
  top: 12px;
  z-index: 1000;
  transform: translateY(-140%);
  border-radius: var(--radius);
  background: var(--white);
  color: var(--navy);
  padding: 10px 14px;
  font-weight: 800;
  text-decoration: none;
  box-shadow: var(--shadow);
  transition: transform 180ms ease;
}

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

.container {
  width: min(1160px, calc(100% - 40px));
  margin-inline: auto;
}

.section {
  padding: 96px 0;
}

.section-anchor {
  scroll-margin-top: calc(var(--header-height) + 16px);
}

.section-muted {
  background:
    linear-gradient(135deg, rgba(21, 216, 255, 0.08), rgba(56, 230, 170, 0.05)),
    var(--soft);
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(255, 255, 255, 0.88);
  border-bottom: 1px solid rgba(9, 26, 51, 0.08);
  backdrop-filter: blur(18px);
}

.header-layout {
  min-height: var(--header-height);
  display: grid;
  grid-template-columns: auto auto 1fr auto;
  align-items: center;
  gap: 24px;
}

.header-controls {
  display: flex;
  align-items: center;
  gap: 10px;
}

.lang-switch {
  display: inline-flex;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  overflow: hidden;
  background: var(--white);
}

.lang-btn {
  min-height: 44px;
  border: 0;
  background: transparent;
  color: var(--muted);
  padding: 0 13px;
  font-size: 0.82rem;
  font-weight: 800;
  letter-spacing: 0.02em;
  cursor: pointer;
  transition: background 180ms ease, color 180ms ease;
}

.lang-btn + .lang-btn {
  border-left: 1px solid var(--line);
}

.lang-btn:hover {
  color: var(--navy);
}

.lang-btn[aria-pressed="true"] {
  color: var(--navy);
  background: rgba(21, 216, 255, 0.14);
}

.brand,
.footer-brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  color: var(--navy);
  font-size: 1.05rem;
  font-weight: 900;
  text-decoration: none;
  white-space: nowrap;
}

.brand-mark {
  width: 36px;
  height: 36px;
  display: grid;
  place-items: center;
  border-radius: var(--radius);
  color: var(--navy);
  background:
    linear-gradient(135deg, rgba(21, 216, 255, 0.95), rgba(56, 230, 170, 0.88)),
    var(--cyan);
  box-shadow: 0 10px 30px rgba(0, 174, 218, 0.26);
}

.primary-nav {
  justify-self: end;
}

.primary-nav ul {
  display: flex;
  align-items: center;
  gap: 4px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.primary-nav a {
  display: block;
  border-radius: var(--radius);
  color: #26364a;
  padding: 10px 11px;
  font-size: 0.94rem;
  font-weight: 700;
  text-decoration: none;
  transition: background 180ms ease, color 180ms ease;
}

.primary-nav a:hover,
.primary-nav a.active {
  color: var(--navy);
  background: rgba(21, 216, 255, 0.12);
}

.header-button,
.button {
  display: inline-flex;
  min-height: 44px;
  align-items: center;
  justify-content: center;
  border: 0;
  border-radius: var(--radius);
  padding: 12px 18px;
  color: var(--navy);
  cursor: pointer;
  font-weight: 900;
  text-align: center;
  text-decoration: none;
  transition: transform 180ms ease, box-shadow 180ms ease, background 180ms ease;
}

.header-button,
.button-primary {
  background: linear-gradient(135deg, var(--cyan), var(--green));
  box-shadow: 0 16px 34px rgba(0, 174, 218, 0.28);
}

.button-secondary {
  border: 1px solid rgba(255, 255, 255, 0.34);
  color: var(--white);
  background: rgba(255, 255, 255, 0.08);
}

.button-light {
  background: var(--white);
  color: var(--navy);
}

.header-button:hover,
.button:hover {
  transform: translateY(-2px);
}

.nav-toggle {
  display: none;
  width: 44px;
  height: 44px;
  place-items: center;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--white);
  color: var(--navy);
  cursor: pointer;
}

.nav-toggle span {
  width: 20px;
  height: 2px;
  display: block;
  margin: 3px 0;
  border-radius: 99px;
  background: currentColor;
  transition: transform 180ms ease, opacity 180ms ease;
}

.nav-toggle[aria-expanded="true"] span:nth-child(1) {
  transform: translateY(5px) rotate(45deg);
}

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

.nav-toggle[aria-expanded="true"] span:nth-child(3) {
  transform: translateY(-5px) rotate(-45deg);
}

.hero {
  position: relative;
  min-height: calc(100vh - var(--header-height));
  overflow: hidden;
  display: flex;
  align-items: center;
  color: var(--white);
  background:
    radial-gradient(circle at 18% 26%, rgba(21, 216, 255, 0.26), transparent 28%),
    radial-gradient(circle at 78% 22%, rgba(119, 101, 255, 0.26), transparent 29%),
    linear-gradient(135deg, #08152b 0%, #0a2f55 55%, #083b45 100%);
}

.hero::before,
.hero::after {
  content: "";
  position: absolute;
  pointer-events: none;
}

.hero::before {
  inset: 0;
  background-image:
    linear-gradient(rgba(255, 255, 255, 0.06) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.06) 1px, transparent 1px);
  background-size: 54px 54px;
  mask-image: linear-gradient(to bottom, rgba(0, 0, 0, 0.8), transparent);
}

.hero::after {
  right: -120px;
  bottom: -180px;
  width: 520px;
  height: 520px;
  border: 1px solid rgba(21, 216, 255, 0.28);
  border-radius: 42%;
  transform: rotate(21deg);
}

.hero-grid {
  position: absolute;
  inset: auto 7% 11% auto;
  width: 260px;
  height: 260px;
  border-radius: 34px;
  background:
    linear-gradient(90deg, rgba(21, 216, 255, 0.22) 1px, transparent 1px),
    linear-gradient(rgba(56, 230, 170, 0.18) 1px, transparent 1px);
  background-size: 24px 24px;
  opacity: 0.7;
  transform: rotate(-7deg);
}

.hero-layout {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: minmax(0, 1.06fr) minmax(330px, 0.74fr);
  gap: 54px;
  align-items: center;
  padding: 72px 0;
}

.eyebrow {
  margin: 0 0 12px;
  color: var(--cyan);
  font-size: 0.79rem;
  font-weight: 900;
  letter-spacing: 0;
  text-transform: uppercase;
}

.hero h1 {
  max-width: 820px;
  margin: 0;
  font-size: clamp(2.75rem, 7vw, 5.75rem);
  line-height: 0.98;
  letter-spacing: 0;
}

.hero-subtitle {
  max-width: 660px;
  margin: 26px 0 0;
  color: #d9e8f5;
  font-size: clamp(1.05rem, 2vw, 1.28rem);
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  margin-top: 34px;
}

.hero-panel {
  position: relative;
  min-height: 420px;
  border: 1px solid rgba(255, 255, 255, 0.14);
  border-radius: var(--radius);
  padding: 24px;
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.15), rgba(255, 255, 255, 0.06));
  box-shadow: 0 26px 90px rgba(0, 0, 0, 0.28);
  backdrop-filter: blur(20px);
}

.orbit {
  position: absolute;
  inset: 40px 36px auto auto;
  width: 184px;
  height: 184px;
  border: 1px solid rgba(21, 216, 255, 0.35);
  border-radius: 50%;
  animation: rotate 18s linear infinite;
}

.orbit::before,
.orbit::after {
  content: "";
  position: absolute;
  inset: 28px;
  border: 1px solid rgba(56, 230, 170, 0.28);
  border-radius: 50%;
}

.orbit::after {
  inset: 63px;
  background: rgba(21, 216, 255, 0.18);
}

.orbit span {
  position: absolute;
  width: 16px;
  height: 16px;
  border-radius: 50%;
  background: var(--cyan);
  box-shadow: 0 0 26px rgba(21, 216, 255, 0.85);
}

.orbit span:nth-child(1) {
  left: 18px;
  top: 24px;
}

.orbit span:nth-child(2) {
  right: 8px;
  top: 92px;
  background: var(--green);
}

.orbit span:nth-child(3) {
  bottom: 12px;
  left: 82px;
  background: var(--violet);
}

.signal-card {
  position: relative;
  border: 1px solid rgba(255, 255, 255, 0.14);
  border-radius: var(--radius);
  padding: 18px;
  background: rgba(8, 21, 43, 0.76);
}

.signal-card-large {
  width: min(100%, 260px);
  margin-top: 214px;
}

.metric {
  display: block;
  color: var(--green);
  font-size: 2.5rem;
  font-weight: 900;
  line-height: 1;
}

.signal-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 14px;
  margin-top: 14px;
}

.signal-card strong {
  display: block;
  color: var(--white);
  font-size: 1rem;
}

.signal-card p,
.signal-card span:not(.metric):not(.mini-icon) {
  margin: 4px 0 0;
  color: var(--muted-light);
  font-size: 0.9rem;
}

.mini-icon {
  display: inline-grid;
  min-width: 38px;
  min-height: 32px;
  place-items: center;
  margin-bottom: 10px;
  border-radius: var(--radius);
  color: var(--navy);
  background: var(--cyan);
  font-size: 0.75rem;
  font-weight: 900;
}

.section-heading {
  max-width: 760px;
  margin-bottom: 40px;
}

.section-heading h2,
.cta-layout h2,
.contact-copy h2 {
  margin: 0;
  color: var(--navy);
  font-size: clamp(2rem, 4vw, 3.1rem);
  line-height: 1.08;
  letter-spacing: 0;
}

.section-heading p:not(.eyebrow),
.cta-layout p,
.contact-copy p {
  margin: 18px 0 0;
  color: var(--muted);
  font-size: 1.04rem;
}

.service-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 18px;
}

.service-card,
.value-card,
.approach-card,
.process-step,
.case-card,
.contact-form,
.contact-card {
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--white);
  box-shadow: 0 10px 32px rgba(8, 23, 45, 0.08);
}

.service-card {
  position: relative;
  min-height: 240px;
  padding: 24px;
  overflow: hidden;
  transition: transform 220ms ease, box-shadow 220ms ease, border-color 220ms ease;
}

.service-card::after {
  content: "";
  position: absolute;
  inset: auto -40px -48px auto;
  width: 130px;
  height: 130px;
  border: 1px solid rgba(21, 216, 255, 0.22);
  border-radius: 30px;
  transform: rotate(24deg);
}

.service-card:hover {
  transform: translateY(-6px);
  border-color: rgba(21, 216, 255, 0.42);
  box-shadow: var(--shadow);
}

.service-icon {
  display: grid;
  width: 48px;
  height: 48px;
  place-items: center;
  border-radius: var(--radius);
  color: var(--navy);
  background: linear-gradient(135deg, rgba(21, 216, 255, 0.22), rgba(56, 230, 170, 0.16));
}

.service-icon svg {
  width: 25px;
  height: 25px;
  fill: currentColor;
}

.service-card h3,
.value-card h3,
.approach-card h3,
.process-step h3,
.case-card h3 {
  margin: 20px 0 10px;
  color: var(--navy);
  font-size: 1.12rem;
  line-height: 1.25;
}

.service-card p,
.value-card p,
.approach-card p,
.process-step p,
.case-card p {
  margin: 0;
  color: var(--muted);
}

.split-layout {
  display: grid;
  grid-template-columns: minmax(0, 0.85fr) minmax(360px, 1fr);
  gap: 54px;
  align-items: start;
}

.value-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 16px;
}

.value-card {
  min-height: 190px;
  padding: 22px;
}

.value-card span,
.process-step span,
.case-label {
  color: var(--cyan-strong);
  font-size: 0.78rem;
  font-weight: 900;
  text-transform: uppercase;
}

.cta-band {
  position: relative;
  overflow: hidden;
  padding: 68px 0;
  color: var(--white);
  background:
    linear-gradient(135deg, rgba(9, 26, 51, 0.94), rgba(10, 61, 73, 0.94)),
    radial-gradient(circle at 80% 20%, rgba(119, 101, 255, 0.28), transparent 30%);
}

.cta-band::before {
  content: "";
  position: absolute;
  inset: -80px -70px auto auto;
  width: 260px;
  height: 260px;
  border: 1px solid rgba(255, 255, 255, 0.2);
  border-radius: 34px;
  transform: rotate(21deg);
}

.cta-layout {
  position: relative;
  z-index: 1;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 28px;
}

.cta-layout h2,
.cta-layout p {
  color: var(--white);
}

.cta-layout p {
  max-width: 720px;
}

.approach-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 18px;
}

.approach-card {
  padding: 26px;
}

.approach-top {
  display: flex;
  align-items: center;
  gap: 14px;
}

.approach-icon {
  width: 42px;
  height: 42px;
  display: grid;
  place-items: center;
  border-radius: var(--radius);
  color: var(--navy);
  background: linear-gradient(135deg, var(--cyan), var(--green));
  font-weight: 900;
}

.approach-card h3 {
  margin: 0;
}

.approach-card p {
  margin-top: 18px;
}

.process-list {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 18px;
  margin: 0;
  padding: 0;
  list-style: none;
  counter-reset: process;
}

.process-step {
  min-height: 240px;
  padding: 24px;
}

.case-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 18px;
}

.case-card {
  position: relative;
  min-height: 250px;
  padding: 26px;
  overflow: hidden;
}

.case-card::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0;
  width: 100%;
  height: 5px;
  background: linear-gradient(90deg, var(--cyan), var(--green), var(--violet));
}

.case-label {
  margin: 0;
}

.faq-layout {
  display: grid;
  grid-template-columns: minmax(0, 0.75fr) minmax(420px, 1fr);
  gap: 48px;
  align-items: start;
}

.faq-list {
  display: grid;
  gap: 12px;
}

details {
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--white);
  box-shadow: 0 10px 28px rgba(8, 23, 45, 0.06);
}

summary {
  position: relative;
  cursor: pointer;
  padding: 20px 52px 20px 20px;
  color: var(--navy);
  font-weight: 900;
  list-style: none;
}

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

summary::after {
  content: "+";
  position: absolute;
  right: 18px;
  top: 50%;
  width: 26px;
  height: 26px;
  display: grid;
  place-items: center;
  border-radius: 50%;
  color: var(--navy);
  background: rgba(21, 216, 255, 0.18);
  transform: translateY(-50%);
}

details[open] summary::after {
  content: "-";
}

details p {
  margin: 0;
  padding: 0 20px 20px;
  color: var(--muted);
}

.contact-section {
  color: var(--white);
  background:
    linear-gradient(135deg, rgba(7, 17, 31, 0.96), rgba(9, 39, 72, 0.95)),
    radial-gradient(circle at 15% 20%, rgba(21, 216, 255, 0.2), transparent 34%);
}

.contact-layout {
  display: grid;
  grid-template-columns: minmax(0, 0.84fr) minmax(420px, 1fr);
  gap: 48px;
  align-items: start;
}

.contact-copy h2,
.contact-copy p {
  color: var(--white);
}

.contact-copy p {
  color: #d8e5f1;
}

.contact-card {
  margin-top: 30px;
  padding: 20px;
  border-color: rgba(255, 255, 255, 0.14);
  background: rgba(255, 255, 255, 0.08);
}

.contact-card span {
  display: block;
  color: var(--muted-light);
  font-size: 0.84rem;
  font-weight: 800;
  text-transform: uppercase;
}

.contact-card a {
  display: inline-block;
  margin-top: 4px;
  color: var(--white);
  font-size: 1.12rem;
  font-weight: 900;
}

.contact-form {
  padding: 26px;
  background: var(--white);
}

.field-group {
  display: grid;
  gap: 7px;
  margin-bottom: 16px;
}

label {
  color: var(--navy);
  font-weight: 800;
}

input,
textarea {
  width: 100%;
  border: 1px solid rgba(9, 26, 51, 0.18);
  border-radius: var(--radius);
  background: #f9fbfd;
  color: var(--ink);
  padding: 13px 14px;
  transition: border-color 180ms ease, box-shadow 180ms ease, background 180ms ease;
}

textarea {
  min-height: 150px;
  resize: vertical;
}

input:focus,
textarea:focus {
  border-color: var(--cyan-strong);
  background: var(--white);
  box-shadow: 0 0 0 4px rgba(21, 216, 255, 0.13);
  outline: 0;
}

.form-status {
  min-height: 24px;
  margin: 0 0 14px;
  color: var(--muted);
  font-size: 0.94rem;
}

.site-footer {
  color: #d7e4f0;
  background: #06101f;
  padding: 54px 0 20px;
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.1fr 1.3fr 0.9fr;
  gap: 42px;
}

.footer-brand {
  color: var(--white);
}

.site-footer h2 {
  margin: 0 0 14px;
  color: var(--white);
  font-size: 1rem;
}

.site-footer p {
  max-width: 420px;
  margin: 14px 0 0;
  color: #aab9c9;
}

.site-footer ul {
  columns: 2;
  gap: 24px;
  margin: 0;
  padding: 0;
  list-style: none;
  color: #aab9c9;
}

.site-footer li {
  break-inside: avoid;
  margin-bottom: 8px;
}

.site-footer a {
  color: var(--white);
  text-decoration-color: rgba(21, 216, 255, 0.45);
  text-underline-offset: 4px;
}

.footer-bottom {
  margin-top: 34px;
  padding-top: 20px;
  border-top: 1px solid rgba(255, 255, 255, 0.1);
}

.footer-bottom p {
  max-width: none;
  margin: 0;
  color: #91a2b4;
}

/* Solution pillars */
.section-heading-center {
  max-width: 720px;
  margin-inline: auto;
  text-align: center;
}

.pillar-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 24px;
}

.pillar-card {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--white);
  padding: 34px;
  box-shadow: 0 14px 40px rgba(8, 23, 45, 0.08);
  transition: transform 220ms ease, box-shadow 220ms ease, border-color 220ms ease;
}

.pillar-card:hover {
  transform: translateY(-6px);
  border-color: rgba(21, 216, 255, 0.42);
  box-shadow: var(--shadow);
}

.pillar-icon {
  display: grid;
  width: 60px;
  height: 60px;
  place-items: center;
  border-radius: 14px;
  color: var(--navy);
  background: linear-gradient(135deg, rgba(21, 216, 255, 0.22), rgba(56, 230, 170, 0.16));
}

.pillar-icon svg {
  width: 32px;
  height: 32px;
  fill: currentColor;
}

.pillar-card h3 {
  margin: 20px 0 10px;
  color: var(--navy);
  font-size: clamp(1.3rem, 2.5vw, 1.6rem);
  line-height: 1.2;
}

.pillar-card > p {
  margin: 0;
  color: var(--muted);
  font-size: 1.02rem;
}

.pillar-list {
  width: 100%;
  margin: 22px 0 26px;
  padding: 22px 0 0;
  border-top: 1px solid var(--line);
  list-style: none;
  display: grid;
  gap: 12px;
}

.pillar-list li {
  position: relative;
  padding-left: 28px;
  color: var(--navy);
  font-size: 0.98rem;
}

.pillar-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 3px;
  width: 18px;
  height: 18px;
  border-radius: 50%;
  background: linear-gradient(135deg, rgba(56, 230, 170, 0.28), rgba(21, 216, 255, 0.28));
}

.pillar-list li::after {
  content: "";
  position: absolute;
  left: 6px;
  top: 6px;
  width: 5px;
  height: 8px;
  border-right: 2px solid var(--cyan-strong);
  border-bottom: 2px solid var(--cyan-strong);
  transform: rotate(45deg);
}

.pillar-link {
  margin-top: auto;
  display: inline-flex;
  align-items: center;
  gap: 6px;
  color: var(--cyan-strong);
  font-weight: 900;
  font-size: 0.98rem;
  text-decoration: none;
}

.pillar-link::after {
  content: "\2192";
  transition: transform 180ms ease;
}

.pillar-card:hover .pillar-link::after {
  transform: translateX(4px);
}

/* IoT Monitoring */
.iot-subheading {
  margin: 0;
  color: var(--navy);
  font-size: clamp(1.4rem, 3vw, 1.9rem);
  line-height: 1.15;
}

.iot-subintro {
  margin: 10px 0 0;
  color: var(--muted);
  font-size: 1.02rem;
}

.iot-block {
  margin-top: 64px;
}

.iot-flow {
  display: grid;
  grid-template-columns: 1fr auto 1fr auto 1fr auto 1fr;
  align-items: stretch;
  gap: 10px;
  margin-top: 8px;
}

.flow-node {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--white);
  padding: 22px;
  box-shadow: 0 10px 32px rgba(8, 23, 45, 0.08);
}

.flow-icon {
  display: grid;
  width: 52px;
  height: 52px;
  place-items: center;
  border-radius: var(--radius);
  color: var(--navy);
  background: linear-gradient(135deg, rgba(21, 216, 255, 0.22), rgba(56, 230, 170, 0.16));
}

.flow-icon svg {
  width: 28px;
  height: 28px;
  fill: currentColor;
}

.flow-node h3 {
  margin: 16px 0 8px;
  color: var(--navy);
  font-size: 1.08rem;
  line-height: 1.25;
}

.flow-node p {
  margin: 0;
  color: var(--muted);
  font-size: 0.94rem;
}

.flow-link {
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
}

.flow-link::before {
  content: "";
  position: absolute;
  left: 8px;
  right: 8px;
  top: 50%;
  height: 2px;
  background: linear-gradient(90deg, var(--cyan), var(--green));
  transform: translateY(-50%);
}

.flow-link::after {
  content: "";
  position: absolute;
  right: 4px;
  top: 50%;
  width: 9px;
  height: 9px;
  border-top: 2px solid var(--green);
  border-right: 2px solid var(--green);
  transform: translateY(-50%) rotate(45deg);
}

.flow-link span {
  position: relative;
  z-index: 1;
  border: 1px solid var(--line);
  border-radius: 99px;
  background: var(--white);
  padding: 4px 10px;
  color: var(--cyan-strong);
  font-size: 0.72rem;
  font-weight: 800;
  text-align: center;
  white-space: nowrap;
}

.sensor-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 18px;
  margin-top: 26px;
}

.sensor-card {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--white);
  padding: 22px;
  box-shadow: 0 10px 32px rgba(8, 23, 45, 0.08);
  transition: transform 220ms ease, box-shadow 220ms ease, border-color 220ms ease;
}

.sensor-card:hover {
  transform: translateY(-6px);
  border-color: rgba(21, 216, 255, 0.42);
  box-shadow: var(--shadow);
}

.sensor-tag {
  border-radius: 99px;
  background: rgba(21, 216, 255, 0.14);
  padding: 4px 11px;
  color: var(--cyan-strong);
  font-size: 0.72rem;
  font-weight: 900;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

.sensor-card h4 {
  margin: 14px 0 8px;
  color: var(--navy);
  font-size: 1.1rem;
  line-height: 1.25;
}

.sensor-card p {
  margin: 0 0 16px;
  color: var(--muted);
  font-size: 0.95rem;
}

.sensor-link {
  margin-top: auto;
  color: var(--cyan-strong);
  font-weight: 800;
  font-size: 0.92rem;
  text-decoration: none;
  border-bottom: 2px solid rgba(21, 216, 255, 0.4);
  padding-bottom: 2px;
}

.sensor-link:hover {
  color: var(--navy);
}

.plan-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 18px;
  margin-top: 26px;
}

.plan-card {
  position: relative;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--white);
  padding: 28px;
  box-shadow: 0 10px 32px rgba(8, 23, 45, 0.08);
}

.plan-card-featured {
  border-color: rgba(21, 216, 255, 0.5);
  box-shadow: 0 20px 50px rgba(0, 174, 218, 0.16);
}

.plan-badge {
  position: absolute;
  top: 18px;
  right: 18px;
  border-radius: 99px;
  background: linear-gradient(135deg, var(--cyan), var(--green));
  padding: 5px 12px;
  color: var(--navy);
  font-size: 0.72rem;
  font-weight: 900;
  text-transform: uppercase;
}

.plan-name {
  margin: 0;
  color: var(--cyan-strong);
  font-size: 0.82rem;
  font-weight: 900;
  letter-spacing: 0.03em;
  text-transform: uppercase;
}

.plan-price {
  margin: 10px 0 0;
  display: flex;
  align-items: baseline;
  gap: 8px;
}

.plan-amount {
  color: var(--navy);
  font-size: 2rem;
  font-weight: 900;
  line-height: 1;
}

.plan-cycle {
  color: var(--muted);
  font-size: 0.95rem;
  font-weight: 700;
}

.plan-tagline {
  margin: 12px 0 20px;
  color: var(--muted);
  font-size: 0.96rem;
}

.plan-features {
  margin: 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 12px;
}

.plan-features li {
  position: relative;
  padding-left: 30px;
  color: var(--navy);
  font-size: 0.96rem;
}

.plan-features li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 2px;
  width: 20px;
  height: 20px;
  border-radius: 50%;
  background:
    linear-gradient(135deg, rgba(56, 230, 170, 0.25), rgba(21, 216, 255, 0.25));
}

.plan-features li::after {
  content: "";
  position: absolute;
  left: 7px;
  top: 6px;
  width: 5px;
  height: 9px;
  border-right: 2px solid var(--cyan-strong);
  border-bottom: 2px solid var(--cyan-strong);
  transform: rotate(45deg);
}

.plan-features li.plan-limit,
.plan-features li.plan-off {
  color: var(--muted);
}

.plan-features li.plan-off::before {
  background: rgba(9, 26, 51, 0.08);
}

.plan-features li.plan-off::after {
  left: 6px;
  top: 9px;
  width: 8px;
  height: 8px;
  border: 0;
  border-top: 2px solid var(--muted);
  transform: none;
}

.plan-cta {
  margin-top: 24px;
  width: 100%;
}

.iot-service {
  display: grid;
  grid-template-columns: minmax(0, 0.8fr) minmax(0, 1.2fr);
  gap: 40px;
  align-items: center;
  margin-top: 64px;
  border-radius: var(--radius);
  padding: 40px;
  color: var(--white);
  background:
    linear-gradient(135deg, rgba(9, 26, 51, 0.96), rgba(10, 61, 73, 0.96)),
    radial-gradient(circle at 82% 18%, rgba(119, 101, 255, 0.28), transparent 32%);
}

.iot-service-copy h3 {
  margin: 0;
  color: var(--white);
  font-size: clamp(1.5rem, 3vw, 2.1rem);
  line-height: 1.12;
}

.iot-service-copy p {
  margin: 14px 0 0;
  color: #d8e5f1;
}

.iot-service-list {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 16px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.iot-service-list li {
  border: 1px solid rgba(255, 255, 255, 0.14);
  border-radius: var(--radius);
  background: rgba(255, 255, 255, 0.06);
  padding: 18px;
}

.iot-service-list strong {
  display: block;
  color: var(--white);
  font-size: 1rem;
  margin-bottom: 4px;
}

.iot-service-list span {
  color: var(--muted-light);
  font-size: 0.92rem;
}

.reveal {
  opacity: 0;
  transform: translateY(18px);
  transition: opacity 550ms ease, transform 550ms ease;
}

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

@keyframes rotate {
  to {
    transform: rotate(360deg);
  }
}

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

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

@media (max-width: 1020px) {
  .header-layout {
    grid-template-columns: auto auto;
    justify-content: space-between;
  }

  .nav-toggle {
    display: grid;
  }

  .primary-nav {
    position: fixed;
    inset: var(--header-height) 0 auto;
    display: none;
    max-height: calc(100vh - var(--header-height));
    overflow-y: auto;
    border-bottom: 1px solid var(--line);
    background: rgba(255, 255, 255, 0.97);
    padding: 14px 20px 20px;
    box-shadow: 0 24px 44px rgba(8, 23, 45, 0.12);
  }

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

  .primary-nav ul {
    display: grid;
    gap: 4px;
    width: min(1160px, 100%);
    margin-inline: auto;
  }

  .primary-nav a {
    padding: 14px 12px;
  }

  .header-button {
    display: none;
  }

  .hero-layout,
  .split-layout,
  .faq-layout,
  .contact-layout {
    grid-template-columns: 1fr;
  }

  .hero-layout {
    gap: 32px;
  }

  .hero-panel {
    min-height: 360px;
  }

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

  .approach-grid,
  .case-grid,
  .footer-grid {
    grid-template-columns: 1fr;
  }

  .cta-layout {
    align-items: flex-start;
    flex-direction: column;
  }

  .iot-flow {
    grid-template-columns: 1fr;
    gap: 0;
  }

  .flow-link {
    min-height: 46px;
  }

  .flow-link::before {
    left: 50%;
    right: auto;
    top: 8px;
    bottom: 8px;
    width: 2px;
    height: auto;
    transform: translateX(-50%);
  }

  .flow-link::after {
    right: auto;
    left: 50%;
    top: auto;
    bottom: 6px;
    transform: translateX(-50%) rotate(135deg);
  }

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

  .iot-service {
    grid-template-columns: 1fr;
    padding: 32px;
  }
}

@media (max-width: 680px) {
  :root {
    --header-height: 70px;
  }

  .container {
    width: min(100% - 28px, 1160px);
  }

  .section {
    padding: 70px 0;
  }

  .brand {
    font-size: 1rem;
  }

  .brand-mark {
    width: 34px;
    height: 34px;
  }

  .hero {
    min-height: auto;
  }

  .hero-layout {
    padding: 60px 0 52px;
  }

  .hero h1 {
    font-size: clamp(2.55rem, 15vw, 3.8rem);
  }

  .hero-actions,
  .signal-row {
    grid-template-columns: 1fr;
  }

  .hero-actions,
  .signal-row,
  .value-grid {
    display: grid;
  }

  .button {
    width: 100%;
  }

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

  .orbit {
    position: relative;
    inset: auto;
    margin: 0 auto 22px;
    width: 160px;
    height: 160px;
  }

  .signal-card-large {
    width: 100%;
    margin-top: 0;
  }

  .service-grid,
  .value-grid,
  .process-list,
  .case-grid,
  .sensor-grid,
  .plan-grid,
  .pillar-grid,
  .iot-service-list {
    grid-template-columns: 1fr;
  }

  .service-card,
  .value-card,
  .process-step,
  .case-card {
    min-height: auto;
  }

  .section-heading {
    margin-bottom: 28px;
  }

  .section-heading h2,
  .cta-layout h2,
  .contact-copy h2 {
    font-size: clamp(1.9rem, 10vw, 2.5rem);
  }

  .contact-card a {
    font-size: 1rem;
  }

  .site-footer ul {
    columns: 1;
  }
}