:root {
  --bg: #f7f8fb;
  --surface: #ffffff;
  --surface-soft: #eef2f7;
  --text: #172033;
  --muted: #617089;
  --line: #dbe2ed;
  --accent: #0f766e;
  --accent-dark: #134e4a;
  --ink: #0f172a;
  --shadow: 0 18px 45px rgba(15, 23, 42, 0.12);
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: Arial, Helvetica, sans-serif;
  line-height: 1.6;
}

a {
  color: var(--accent-dark);
  text-decoration: none;
}

a:hover {
  text-decoration: underline;
}

.site-header {
  background: rgba(255, 255, 255, 0.94);
  border-bottom: 1px solid var(--line);
  position: sticky;
  top: 0;
  z-index: 10;
}

.nav {
  align-items: center;
  display: flex;
  justify-content: space-between;
  margin: 0 auto;
  max-width: 1160px;
  padding: 16px 24px;
}

.brand {
  align-items: center;
  color: var(--ink);
  display: inline-flex;
  font-weight: 700;
  gap: 10px;
}

.brand-mark {
  align-items: center;
  background: var(--accent);
  border-radius: 8px;
  color: #ffffff;
  display: inline-flex;
  font-size: 14px;
  height: 36px;
  justify-content: center;
  width: 36px;
}

.nav-links {
  display: flex;
  gap: 18px;
}

.nav-links a {
  color: var(--muted);
  font-size: 14px;
  font-weight: 700;
}

.hero {
  align-items: center;
  display: grid;
  gap: 48px;
  grid-template-columns: minmax(0, 1.08fr) minmax(320px, 0.92fr);
  margin: 0 auto;
  max-width: 1160px;
  min-height: calc(100vh - 76px);
  padding: 56px 24px;
}

.hero-content {
  max-width: 660px;
}

.eyebrow {
  color: var(--accent-dark);
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 0;
  margin: 0 0 10px;
  text-transform: uppercase;
}

h1,
h2,
h3 {
  color: var(--ink);
  line-height: 1.15;
  margin: 0;
}

h1 {
  font-size: 64px;
}

h2 {
  font-size: 34px;
}

h3 {
  font-size: 20px;
}

.hero-copy {
  color: var(--muted);
  font-size: 20px;
  margin: 22px 0 0;
  max-width: 620px;
}

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

.button {
  border-radius: 8px;
  display: inline-flex;
  font-weight: 700;
  padding: 12px 18px;
}

.button.primary {
  background: var(--accent);
  color: #ffffff;
}

.button.secondary {
  background: var(--surface);
  border: 1px solid var(--line);
  color: var(--ink);
}

.product-preview {
  background: var(--ink);
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: 8px;
  box-shadow: var(--shadow);
  color: #f8fafc;
  padding: 22px;
}

.preview-bar {
  display: flex;
  gap: 7px;
  margin-bottom: 22px;
}

.preview-bar span {
  background: #94a3b8;
  border-radius: 50%;
  display: block;
  height: 10px;
  width: 10px;
}

.preview-title {
  font-size: 22px;
  font-weight: 700;
  margin-bottom: 18px;
}

.metric-grid {
  display: grid;
  gap: 10px;
  grid-template-columns: repeat(3, 1fr);
}

.metric-grid div {
  background: rgba(255, 255, 255, 0.08);
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: 8px;
  padding: 14px;
}

.metric-grid strong {
  display: block;
  font-size: 28px;
  line-height: 1;
}

.metric-grid span {
  color: #cbd5e1;
  display: block;
  font-size: 12px;
  margin-top: 8px;
}

.activity-list {
  display: grid;
  gap: 10px;
  margin-top: 18px;
}

.activity-list p {
  align-items: center;
  background: rgba(255, 255, 255, 0.06);
  border-radius: 8px;
  display: flex;
  justify-content: space-between;
  margin: 0;
  padding: 12px 14px;
}

.activity-list em {
  color: #5eead4;
  font-size: 12px;
  font-style: normal;
}

.section {
  margin: 0 auto;
  max-width: 1160px;
  padding: 56px 24px;
}

.section-heading {
  margin-bottom: 24px;
  max-width: 760px;
}

.feature-grid {
  display: grid;
  gap: 16px;
  grid-template-columns: repeat(4, 1fr);
}

.card {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 22px;
}

.card p,
.split p,
.contact p,
.document p {
  color: var(--muted);
}

.split {
  align-items: start;
  background: var(--surface-soft);
  display: grid;
  gap: 32px;
  grid-template-columns: 0.8fr 1.2fr;
  max-width: none;
  padding-left: calc((100% - 1160px) / 2 + 24px);
  padding-right: calc((100% - 1160px) / 2 + 24px);
}

.contact {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: 8px;
  margin-bottom: 48px;
  padding: 30px;
}

.document {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: 8px;
  margin: 42px auto;
  max-width: 900px;
  padding: 42px;
}

.document h1 {
  font-size: 44px;
}

.document section {
  border-top: 1px solid var(--line);
  margin-top: 26px;
  padding-top: 24px;
}

.document h2 {
  font-size: 23px;
}

.updated {
  margin-top: 12px;
}

.site-footer {
  align-items: center;
  border-top: 1px solid var(--line);
  color: var(--muted);
  display: flex;
  gap: 18px;
  justify-content: space-between;
  margin: 0 auto;
  max-width: 1160px;
  padding: 24px;
}

.site-footer div {
  display: flex;
  gap: 16px;
}

@media (max-width: 900px) {
  .hero,
  .split {
    grid-template-columns: 1fr;
  }

  .hero {
    min-height: auto;
  }

  h1 {
    font-size: 46px;
  }

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

  .site-footer {
    align-items: flex-start;
    flex-direction: column;
  }
}

@media (max-width: 620px) {
  .nav {
    align-items: flex-start;
    flex-direction: column;
    gap: 14px;
  }

  .nav-links {
    flex-wrap: wrap;
  }

  .hero,
  .section {
    padding-left: 18px;
    padding-right: 18px;
  }

  h1 {
    font-size: 38px;
  }

  h2 {
    font-size: 28px;
  }

  .feature-grid,
  .metric-grid {
    grid-template-columns: 1fr;
  }

  .document {
    border-left: 0;
    border-radius: 0;
    border-right: 0;
    margin: 0;
    padding: 28px 18px;
  }
}