:root {
  --brand: #3557ff;
  --brand-deep: #1735c9;
  --brand-soft: #edf0ff;
  --ink: #101427;
  --muted: #5e6475;
  --line: #e5e8f2;
  --canvas: #f7f8fc;
  --white: #ffffff;
  --navy: #0f2747;
  --accent: #16a085;
  --shadow: 0 24px 70px rgba(16, 20, 39, 0.10);
  --radius: 24px;
  --container: 1180px;
  --font: Inter, "Segoe UI", Arial, sans-serif;
}

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

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: var(--font);
  color: var(--ink);
  background: var(--white);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

body.nav-lock {
  overflow: hidden;
}

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

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

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

.skip-link {
  position: absolute;
  left: 16px;
  top: -60px;
  z-index: 100;
  padding: 10px 14px;
  border-radius: 999px;
  background: var(--ink);
  color: var(--white);
}

.skip-link:focus {
  top: 12px;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  background: rgba(255, 255, 255, 0.92);
  border-bottom: 1px solid rgba(229, 232, 242, 0.9);
  backdrop-filter: blur(18px);
}

.header-inner {
  min-height: 82px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}

.brand-link,
.footer-brand {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  font-weight: 800;
  letter-spacing: -0.02em;
}

.brand-logo {
  width: 148px;
  height: auto;
}

.site-nav {
  display: flex;
  align-items: center;
  gap: 6px;
  font-size: 0.92rem;
  font-weight: 700;
}

.site-nav a {
  padding: 10px 11px;
  border-radius: 999px;
  color: var(--muted);
}

.site-nav a:hover,
.site-nav a[aria-current="page"] {
  color: var(--brand);
  background: var(--brand-soft);
}

.header-actions {
  display: flex;
  align-items: center;
  gap: 12px;
}

.menu-toggle {
  display: none;
  min-height: 44px;
  padding: 0 14px;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: var(--white);
  color: var(--ink);
  font-weight: 800;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  min-height: 48px;
  padding: 0 20px;
  border: 1px solid transparent;
  border-radius: 999px;
  font-weight: 800;
  line-height: 1;
  cursor: pointer;
}

.btn-primary {
  background: var(--brand);
  color: var(--white);
  box-shadow: 0 12px 28px rgba(53, 87, 255, 0.26);
}

.btn-primary:hover {
  background: var(--brand-deep);
}

.btn-secondary {
  color: var(--brand);
  background: var(--brand-soft);
  border-color: rgba(53, 87, 255, 0.16);
}

.btn-ghost {
  color: var(--ink);
  background: var(--white);
  border-color: var(--line);
}

.hero,
.page-hero {
  position: relative;
  overflow: hidden;
  background:
    radial-gradient(circle at 18% 18%, rgba(53, 87, 255, 0.16), transparent 32%),
    linear-gradient(135deg, #ffffff 0%, #f4f6ff 54%, #edf9f6 100%);
}

.hero-grid {
  min-height: 680px;
  display: grid;
  grid-template-columns: minmax(0, 1.05fr) minmax(320px, 0.95fr);
  gap: 56px;
  align-items: center;
  padding: 80px 0;
}

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  margin: 0 0 18px;
  color: var(--brand);
  font-size: 0.78rem;
  font-weight: 900;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.eyebrow::before {
  content: "";
  width: 34px;
  height: 3px;
  border-radius: 999px;
  background: var(--brand);
}

h1,
h2,
h3,
h4 {
  margin: 0;
  line-height: 1.05;
  letter-spacing: -0.045em;
  color: var(--ink);
}

h1 {
  font-size: clamp(2.7rem, 6.8vw, 6rem);
}

h2 {
  font-size: clamp(2rem, 4vw, 3.75rem);
}

h3 {
  font-size: clamp(1.35rem, 2.4vw, 2rem);
}

p {
  margin: 0;
}

.lead {
  margin-top: 22px;
  color: var(--muted);
  font-size: clamp(1.04rem, 1.6vw, 1.25rem);
  max-width: 720px;
}

.hero-actions,
.section-actions {
  display: flex;
  gap: 14px;
  flex-wrap: wrap;
  margin-top: 32px;
}

.hero-card {
  padding: 30px;
  border: 1px solid rgba(229, 232, 242, 0.8);
  border-radius: 34px;
  background: rgba(255, 255, 255, 0.72);
  box-shadow: var(--shadow);
  backdrop-filter: blur(18px);
}

.hero-device {
  border-radius: 28px;
  padding: 26px;
  background: var(--navy);
  color: var(--white);
  min-height: 430px;
  display: grid;
  align-content: space-between;
  position: relative;
  overflow: hidden;
}

.hero-device::after {
  content: "";
  position: absolute;
  width: 280px;
  height: 280px;
  right: -80px;
  top: -70px;
  border-radius: 50%;
  background: rgba(53, 87, 255, 0.42);
}

.device-top,
.device-bottom {
  position: relative;
  z-index: 1;
}

.device-chip {
  display: inline-flex;
  padding: 8px 12px;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.12);
  font-size: 0.78rem;
  font-weight: 800;
}

.device-title {
  margin-top: 56px;
  font-size: clamp(2rem, 4vw, 4rem);
  line-height: 0.98;
  color: var(--white);
}

.device-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 12px;
}

.device-stat {
  padding: 16px;
  border-radius: 18px;
  background: rgba(255, 255, 255, 0.11);
}

.device-stat strong {
  display: block;
  font-size: 1.55rem;
  color: var(--white);
}

.section {
  padding: 92px 0;
}

.section-muted {
  background: var(--canvas);
}

.section-head {
  display: flex;
  justify-content: space-between;
  align-items: end;
  gap: 28px;
  margin-bottom: 34px;
}

.section-head p {
  max-width: 580px;
  color: var(--muted);
}

.grid {
  display: grid;
  gap: 22px;
}

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

.grid-3 {
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.grid-4 {
  grid-template-columns: repeat(4, minmax(0, 1fr));
}

.card,
.service-card,
.feature-card,
.contact-card {
  padding: 28px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--white);
  box-shadow: 0 14px 38px rgba(16, 20, 39, 0.05);
}

.service-card {
  min-height: 100%;
  display: flex;
  flex-direction: column;
}

.card-number,
.icon-pill {
  width: 48px;
  height: 48px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: 16px;
  background: var(--brand-soft);
  color: var(--brand);
  font-weight: 900;
}

.service-card h3,
.feature-card h3,
.contact-card h3 {
  margin-top: 20px;
}

.service-card p,
.feature-card p,
.contact-card p,
.card p {
  margin-top: 14px;
  color: var(--muted);
}

.card-link {
  margin-top: auto;
  padding-top: 22px;
  color: var(--brand);
  font-weight: 900;
}

.list {
  display: grid;
  gap: 10px;
  margin: 20px 0 0;
  padding: 0;
  list-style: none;
}

.list li {
  position: relative;
  padding-left: 24px;
  color: var(--muted);
}

.list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.72em;
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--accent);
}

.split {
  display: grid;
  grid-template-columns: minmax(0, 0.9fr) minmax(320px, 1.1fr);
  gap: 48px;
  align-items: center;
}

.process {
  counter-reset: step;
}

.process-step {
  position: relative;
  padding: 24px;
  border: 1px solid var(--line);
  border-radius: 22px;
  background: var(--white);
}

.process-step::before {
  counter-increment: step;
  content: counter(step, decimal-leading-zero);
  display: block;
  margin-bottom: 16px;
  color: var(--brand);
  font-weight: 900;
  letter-spacing: 0.1em;
}

.page-hero {
  padding: 86px 0 72px;
}

.breadcrumb {
  margin-bottom: 22px;
  color: var(--muted);
  font-weight: 700;
  font-size: 0.9rem;
}

.breadcrumb a {
  color: var(--brand);
}

.cta-band {
  padding: 44px;
  border-radius: 32px;
  background: linear-gradient(135deg, var(--navy), var(--brand-deep));
  color: var(--white);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 28px;
}

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

.cta-band p {
  margin-top: 12px;
  opacity: 0.82;
}

.contact-form {
  display: grid;
  gap: 16px;
}

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

label {
  display: grid;
  gap: 8px;
  color: var(--ink);
  font-weight: 800;
}

input,
select,
textarea {
  width: 100%;
  min-height: 50px;
  border: 1px solid var(--line);
  border-radius: 14px;
  padding: 12px 14px;
  font: inherit;
  color: var(--ink);
  background: var(--white);
}

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

input:focus,
select:focus,
textarea:focus {
  outline: 3px solid rgba(53, 87, 255, 0.16);
  border-color: var(--brand);
}

.notice {
  padding: 14px 16px;
  border-radius: 16px;
  border: 1px solid var(--line);
  background: var(--brand-soft);
  color: var(--navy);
  font-weight: 700;
}

.notice-error {
  background: #fff1f1;
  color: #8f1c1c;
}

.site-footer {
  background: #070b1b;
  color: rgba(255, 255, 255, 0.76);
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.2fr 0.8fr 0.9fr 1fr;
  gap: 32px;
  padding: 62px 0;
}

.footer-logo {
  width: 150px;
  filter: brightness(0) invert(1);
}

.footer-title {
  color: var(--white);
  font-weight: 900;
  margin-bottom: 16px;
}

.footer-links {
  display: grid;
  gap: 10px;
}

.footer-links a:hover {
  color: var(--white);
}

.footer-bottom {
  border-top: 1px solid rgba(255, 255, 255, 0.10);
  padding: 20px 0;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  font-size: 0.92rem;
}

@media (max-width: 1100px) {
  .site-nav,
  .header-actions .btn-primary {
    display: none;
  }

  .menu-toggle {
    display: inline-flex;
    align-items: center;
    justify-content: center;
  }

  .site-header.is-open .site-nav {
    display: grid;
    position: fixed;
    inset: 82px 16px auto 16px;
    padding: 18px;
    border: 1px solid var(--line);
    border-radius: 24px;
    background: var(--white);
    box-shadow: var(--shadow);
  }

  .site-header.is-open .site-nav a {
    padding: 14px 16px;
  }

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

  .grid-4,
  .grid-3 {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

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

@media (max-width: 760px) {
  .container {
    width: min(100% - 28px, var(--container));
  }

  .header-inner {
    min-height: 72px;
  }

  .brand-logo {
    width: 132px;
  }

  .site-header.is-open .site-nav {
    inset-top: 72px;
  }

  .hero-grid {
    min-height: auto;
    padding: 54px 0;
    gap: 30px;
  }

  .hero-card,
  .hero-device,
  .card,
  .service-card,
  .feature-card,
  .contact-card,
  .cta-band {
    border-radius: 20px;
    padding: 22px;
  }

  .section {
    padding: 64px 0;
  }

  .page-hero {
    padding: 56px 0;
  }

  .section-head,
  .cta-band,
  .footer-bottom {
    align-items: flex-start;
    flex-direction: column;
  }

  .grid-4,
  .grid-3,
  .grid-2,
  .field-grid,
  .footer-grid,
  .device-grid {
    grid-template-columns: 1fr;
  }

  .btn,
  .hero-actions .btn,
  .section-actions .btn {
    width: 100%;
  }
}

@media (max-width: 430px) {
  h1 {
    font-size: clamp(2.25rem, 12vw, 3rem);
  }

  .hero-actions,
  .section-actions {
    display: grid;
  }

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