:root {
  --ink: #071b3a;
  --muted: #51657f;
  --line: #d7e3f2;
  --blue: #075fbb;
  --blue-dark: #043c7a;
  --cyan: #28a7df;
  --green: #18a96b;
  --soft: #f3f8fd;
  --white: #fff;
  --shadow: 0 18px 42px rgba(13, 45, 83, 0.14);
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: Arial, Helvetica, sans-serif;
  color: var(--ink);
  background: #f7fbff;
  line-height: 1.5;
}

a {
  color: inherit;
}

.page {
  overflow: hidden;
}

.container {
  width: min(1240px, calc(100% - 32px));
  margin: 0 auto;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 20;
  background: rgba(255, 255, 255, 0.96);
  border-bottom: 1px solid var(--line);
  backdrop-filter: blur(10px);
}

.header-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: 72px;
  gap: 24px;
}

.brand {
  display: flex;
  align-items: center;
  gap: 12px;
  text-decoration: none;
  font-weight: 800;
  letter-spacing: 0.04em;
  color: #08295a;
}

.brand-mark {
  width: 38px;
  height: 38px;
  display: grid;
  place-items: center;
  background: var(--blue);
  color: #fff;
  font-weight: 900;
  transform: skew(-12deg);
}

.nav {
  display: flex;
  align-items: center;
  gap: 22px;
  font-size: 14px;
  font-weight: 700;
}

.nav a {
  text-decoration: none;
  color: #193a66;
}

.header-phone {
  font-weight: 800;
  text-decoration: none;
  color: #08295a;
  white-space: nowrap;
}

.hero {
  background: linear-gradient(180deg, #ffffff 0%, #eef7ff 100%);
  padding: 64px 0 42px;
  border-bottom: 1px solid var(--line);
}

.hero-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.04fr) minmax(360px, 0.96fr);
  gap: 44px;
  align-items: center;
}

.eyebrow {
  margin: 0 0 14px;
  font-size: 13px;
  font-weight: 800;
  color: var(--blue);
  text-transform: uppercase;
  letter-spacing: 0.08em;
}

h1,
h2,
h3 {
  margin: 0;
  line-height: 1.15;
}

h1 {
  font-size: clamp(34px, 4.2vw, 58px);
  max-width: 760px;
}

.lead {
  margin: 22px 0 0;
  max-width: 720px;
  font-size: 20px;
  color: #294763;
}

.hero-actions,
.section-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 28px;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 48px;
  padding: 0 22px;
  border: 0;
  border-radius: 8px;
  background: var(--blue);
  color: #fff;
  font-weight: 800;
  text-decoration: none;
  cursor: pointer;
  box-shadow: 0 10px 24px rgba(7, 95, 187, 0.22);
}

.btn:hover {
  background: var(--blue-dark);
}

.btn-secondary {
  background: #fff;
  color: var(--blue);
  border: 1px solid #b8d2ee;
  box-shadow: none;
}

.hero-panel {
  background: #fff;
  border: 1px solid var(--line);
  box-shadow: var(--shadow);
  border-radius: 12px;
  padding: 22px;
}

.device-stage {
  min-height: 350px;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
  align-items: center;
}

.device-card {
  background: #f5f9fd;
  border: 1px solid #dbe8f5;
  border-radius: 10px;
  padding: 16px;
  min-height: 245px;
  display: flex;
  flex-direction: column;
  justify-content: center;
}

.device-card img {
  width: 100%;
  height: 170px;
  object-fit: contain;
  display: block;
}

.device-card span {
  margin-top: 10px;
  font-weight: 800;
  color: #143a67;
  text-align: center;
}

.hero-stats {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 10px;
  margin-top: 18px;
}

.stat {
  padding: 14px;
  background: #eef6fe;
  border: 1px solid #d5e6f7;
  border-radius: 8px;
}

.stat strong {
  display: block;
  font-size: 24px;
  color: var(--blue);
}

.section {
  padding: 70px 0;
}

.section--white {
  background: #fff;
}

.section-head {
  max-width: 820px;
  margin-bottom: 28px;
}

.section-head h2 {
  font-size: clamp(28px, 3.1vw, 42px);
}

.section-head p {
  margin: 14px 0 0;
  font-size: 18px;
  color: var(--muted);
}

.grid-3,
.grid-4 {
  display: grid;
  gap: 18px;
}

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

.grid-4 {
  grid-template-columns: repeat(4, 1fr);
}

.info-card,
.step-card,
.product-tile,
.form-card {
  background: #fff;
  border: 1px solid var(--line);
  border-radius: 10px;
  box-shadow: 0 10px 28px rgba(13, 45, 83, 0.08);
}

.info-card,
.step-card {
  padding: 24px;
}

.info-card h3,
.step-card h3 {
  font-size: 20px;
  margin-bottom: 10px;
}

.info-card p,
.step-card p {
  margin: 0;
  color: var(--muted);
}

.chip-list {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 18px;
}

.chip {
  padding: 7px 10px;
  border: 1px solid #bed6ef;
  border-radius: 6px;
  background: #f2f8fe;
  color: #143a67;
  font-size: 13px;
  font-weight: 800;
}

.solution-band {
  background: #08254b;
  color: #fff;
}

.solution-band .section-head p {
  color: #c9d9ec;
}

.architecture {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 12px;
}

.architecture-item {
  border: 1px solid rgba(255, 255, 255, 0.16);
  border-radius: 10px;
  padding: 22px;
  background: rgba(255, 255, 255, 0.06);
}

.architecture-item strong {
  display: block;
  font-size: 18px;
  margin-bottom: 8px;
}

.architecture-item span {
  color: #c9d9ec;
}

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

.product-tile {
  overflow: hidden;
}

.product-tile__image {
  height: 180px;
  display: grid;
  place-items: center;
  background: #f4f9fe;
}

.product-tile__image img {
  width: 100%;
  height: 150px;
  object-fit: contain;
}

.product-tile__body {
  padding: 18px;
}

.product-tile__body h3 {
  font-size: 19px;
}

.product-tile__body p {
  color: var(--muted);
}

.product-tile__body a {
  color: var(--blue);
  font-weight: 800;
  text-decoration: none;
}

.steps {
  counter-reset: step;
}

.step-card {
  position: relative;
  padding-top: 58px;
}

.step-card::before {
  counter-increment: step;
  content: counter(step);
  position: absolute;
  top: 18px;
  left: 24px;
  width: 30px;
  height: 30px;
  display: grid;
  place-items: center;
  border-radius: 50%;
  background: var(--green);
  color: #fff;
  font-weight: 900;
}

.cta {
  background: linear-gradient(180deg, #eef7ff 0%, #ffffff 100%);
}

.cta-grid {
  display: grid;
  grid-template-columns: minmax(0, 0.95fr) minmax(360px, 1.05fr);
  gap: 28px;
  align-items: start;
}

.contact-list {
  display: grid;
  gap: 12px;
  margin-top: 20px;
}

.contact-item {
  padding: 16px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #fff;
}

.contact-item strong {
  display: block;
}

.contact-item a {
  color: var(--blue);
  font-weight: 800;
  text-decoration: none;
}

.form-card {
  padding: 26px;
}

.field-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 14px;
}

.field {
  display: grid;
  gap: 7px;
}

.field--full {
  grid-column: 1 / -1;
}

.field label {
  font-weight: 800;
  font-size: 14px;
}

.field input,
.field textarea {
  width: 100%;
  border: 1px solid #bfcfe1;
  border-radius: 8px;
  padding: 13px 14px;
  font: inherit;
  background: #fff;
}

.field textarea {
  min-height: 108px;
  resize: vertical;
}

.hp-field {
  position: absolute;
  left: -9999px;
  width: 1px;
  height: 1px;
  opacity: 0;
}

.form-note {
  margin: 14px 0 0;
  color: var(--muted);
  font-size: 13px;
}

.site-footer {
  background: #071b3a;
  color: #d9e7f6;
  padding: 34px 0;
}

.footer-row {
  display: flex;
  justify-content: space-between;
  gap: 20px;
}

.footer-row a {
  color: #fff;
  font-weight: 800;
}

@media (max-width: 1024px) {
  .hero-grid,
  .cta-grid {
    grid-template-columns: 1fr;
  }

  .grid-3,
  .product-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .grid-4,
  .architecture {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 720px) {
  .nav {
    display: none;
  }

  .header-row {
    min-height: 62px;
  }

  .hero {
    padding-top: 36px;
  }

  .device-stage,
  .hero-stats,
  .grid-3,
  .grid-4,
  .architecture,
  .product-grid,
  .field-grid {
    grid-template-columns: 1fr;
  }

  .section {
    padding: 48px 0;
  }

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