:root {
  --ink: #101828;
  --muted: #53627a;
  --line: #d9e2ef;
  --panel: #ffffff;
  --soft: #f4f8fc;
  --brand: #1769ff;
  --brand-dark: #0f4fc7;
  --green: #21b66f;
  --yellow: #f6bd26;
  --red: #ef4f5f;
  --shadow: 0 24px 70px rgba(16, 24, 40, 0.15);
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  color: var(--ink);
  background: #ffffff;
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

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

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

.site-header {
  position: sticky;
  top: 0;
  z-index: 20;
  border-bottom: 1px solid rgba(217, 226, 239, 0.8);
  background: rgba(255, 255, 255, 0.92);
  backdrop-filter: blur(16px);
}

.nav {
  width: min(1180px, calc(100% - 32px));
  height: 76px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 22px;
}

.brand {
  display: flex;
  align-items: center;
  gap: 12px;
  font-weight: 800;
  letter-spacing: 0.01em;
}

.brand-mark {
  width: 42px;
  height: 42px;
  border-radius: 8px;
  display: grid;
  place-items: center;
  color: #fff;
  background: #13223f;
  box-shadow: inset 0 0 0 1px rgba(255, 255, 255, 0.14);
  font-size: 13px;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 20px;
  color: var(--muted);
  font-size: 14px;
}

.language-switch {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 4px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #fff;
}

.language-switch a {
  padding: 7px 10px;
  border-radius: 6px;
  color: var(--muted);
  font-size: 13px;
  font-weight: 700;
}

.language-switch a.active {
  color: #fff;
  background: var(--brand);
}

.hero {
  position: relative;
  overflow: hidden;
  padding: 82px 0 58px;
  background:
    radial-gradient(circle at 12% 15%, rgba(33, 182, 111, 0.16), transparent 28%),
    radial-gradient(circle at 88% 5%, rgba(23, 105, 255, 0.16), transparent 30%),
    linear-gradient(180deg, #f6fbff 0%, #ffffff 82%);
}

.hero-inner {
  width: min(1180px, calc(100% - 32px));
  margin: 0 auto;
}

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  margin-bottom: 18px;
  padding: 8px 12px;
  border: 1px solid rgba(33, 182, 111, 0.28);
  border-radius: 999px;
  color: #176f46;
  background: rgba(33, 182, 111, 0.08);
  font-size: 14px;
  font-weight: 800;
}

.eyebrow::before {
  content: "";
  width: 9px;
  height: 9px;
  border-radius: 50%;
  background: var(--green);
}

.hero h1 {
  max-width: 860px;
  margin: 0;
  font-size: clamp(42px, 7vw, 82px);
  line-height: 0.96;
  letter-spacing: 0;
}

.hero-copy {
  max-width: 690px;
  margin: 22px 0 0;
  color: var(--muted);
  font-size: 20px;
  line-height: 1.6;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 12px;
  margin-top: 30px;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 48px;
  padding: 0 20px;
  border-radius: 8px;
  border: 1px solid transparent;
  font-weight: 800;
}

.button.primary {
  color: #fff;
  background: var(--brand);
  box-shadow: 0 14px 26px rgba(23, 105, 255, 0.22);
}

.button.primary:hover {
  background: var(--brand-dark);
}

.button.secondary {
  color: var(--ink);
  background: #fff;
  border-color: var(--line);
}

.product-shot {
  position: relative;
  margin-top: 44px;
  border: 1px solid rgba(217, 226, 239, 0.96);
  border-radius: 8px;
  overflow: hidden;
  background: #fff;
  box-shadow: var(--shadow);
}

.product-shot::before {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  box-shadow: inset 0 0 0 1px rgba(255, 255, 255, 0.75);
}

.metric-strip {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1px;
  margin-top: 1px;
  border: 1px solid var(--line);
  border-radius: 8px;
  overflow: hidden;
  background: var(--line);
}

.metric {
  padding: 18px;
  background: #fff;
}

.metric strong {
  display: block;
  font-size: 26px;
}

.metric span {
  color: var(--muted);
  font-size: 14px;
}

section {
  padding: 82px 0;
}

.section-inner {
  width: min(1180px, calc(100% - 32px));
  margin: 0 auto;
}

.section-head {
  max-width: 760px;
  margin-bottom: 34px;
}

.section-head h2 {
  margin: 0;
  font-size: clamp(30px, 4vw, 48px);
  line-height: 1.05;
  letter-spacing: 0;
}

.section-head p {
  margin: 16px 0 0;
  color: var(--muted);
  font-size: 18px;
  line-height: 1.6;
}

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

.card {
  min-height: 210px;
  padding: 24px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #fff;
}

.card h3 {
  margin: 18px 0 10px;
  font-size: 20px;
}

.card p {
  margin: 0;
  color: var(--muted);
  line-height: 1.6;
}

.icon {
  width: 46px;
  height: 46px;
  border-radius: 8px;
  display: grid;
  place-items: center;
  color: #fff;
  font-weight: 900;
}

.icon.blue {
  background: var(--brand);
}

.icon.green {
  background: var(--green);
}

.icon.yellow {
  background: var(--yellow);
  color: #3d2a00;
}

.icon.red {
  background: var(--red);
}

.soft-section {
  background: var(--soft);
}

.split {
  display: grid;
  grid-template-columns: 0.94fr 1.06fr;
  gap: 32px;
  align-items: start;
}

.io-panel,
.use-panel,
.form-panel {
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #fff;
}

.io-panel {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  overflow: hidden;
}

.io-item {
  padding: 22px;
  border-right: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}

.io-item:nth-child(2n) {
  border-right: 0;
}

.io-item:nth-last-child(-n + 2) {
  border-bottom: 0;
}

.io-item strong {
  display: block;
  font-size: 24px;
}

.io-item span {
  color: var(--muted);
}

.timeline {
  display: grid;
  gap: 14px;
}

.step {
  display: grid;
  grid-template-columns: 40px 1fr;
  gap: 14px;
  align-items: start;
  padding: 18px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #fff;
}

.step-number {
  width: 40px;
  height: 40px;
  display: grid;
  place-items: center;
  border-radius: 8px;
  color: #fff;
  background: #13223f;
  font-weight: 900;
}

.step h3 {
  margin: 0 0 6px;
}

.step p {
  margin: 0;
  color: var(--muted);
  line-height: 1.55;
}

.use-panel {
  padding: 10px;
}

.use-case {
  padding: 18px;
  border-bottom: 1px solid var(--line);
}

.use-case:last-child {
  border-bottom: 0;
}

.use-case strong {
  display: block;
  margin-bottom: 6px;
}

.use-case span {
  color: var(--muted);
}

.contact-grid {
  display: grid;
  grid-template-columns: 0.9fr 1.1fr;
  gap: 26px;
  align-items: start;
}

.contact-note {
  padding: 26px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #fff;
}

.contact-note p {
  color: var(--muted);
  line-height: 1.65;
}

.form-panel {
  padding: 24px;
}

.form-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 14px;
}

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

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

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

input,
select,
textarea {
  width: 100%;
  min-height: 46px;
  padding: 12px 13px;
  border: 1px solid var(--line);
  border-radius: 8px;
  color: var(--ink);
  background: #fff;
  font: inherit;
}

textarea {
  min-height: 130px;
  resize: vertical;
}

.checkbox {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  color: var(--muted);
  font-size: 14px;
  line-height: 1.5;
}

.checkbox input {
  width: 18px;
  min-height: 18px;
  margin-top: 2px;
}

.form-status {
  min-height: 24px;
  margin-top: 12px;
  color: #176f46;
  font-weight: 800;
}

.site-footer {
  padding: 34px 0;
  border-top: 1px solid var(--line);
  color: var(--muted);
  background: #fff;
}

.footer-inner {
  width: min(1180px, calc(100% - 32px));
  margin: 0 auto;
  display: flex;
  justify-content: space-between;
  gap: 20px;
  flex-wrap: wrap;
}

@media (max-width: 920px) {
  .nav {
    height: auto;
    padding: 14px 0;
    align-items: flex-start;
  }

  .nav-links {
    display: none;
  }

  .hero {
    padding-top: 52px;
  }

  .metric-strip,
  .grid-3,
  .split,
  .contact-grid {
    grid-template-columns: 1fr;
  }

  .io-panel {
    grid-template-columns: 1fr;
  }

  .io-item,
  .io-item:nth-child(2n),
  .io-item:nth-last-child(-n + 2) {
    border-right: 0;
    border-bottom: 1px solid var(--line);
  }

  .io-item:last-child {
    border-bottom: 0;
  }

  .form-grid {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 560px) {
  .hero-actions {
    align-items: stretch;
  }

  .button {
    width: 100%;
  }

  section {
    padding: 58px 0;
  }
}