:root {
  font-family:
    Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI",
    sans-serif;
  color: #172026;
  background: #ffffff;
  --surface: #f5f8fb;
  --line: #dbe3ea;
  --muted: #66727d;
  --teal: #007f78;
  --cobalt: #2354d1;
  --green: #147a3d;
  --amber: #9b5b00;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  min-width: 320px;
}

a {
  color: inherit;
}

.container {
  width: min(1120px, calc(100% - 36px));
  margin: 0 auto;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 5;
  border-bottom: 1px solid var(--line);
  background: rgba(255, 255, 255, 0.94);
  backdrop-filter: blur(14px);
}

.nav {
  display: flex;
  justify-content: space-between;
  align-items: center;
  min-height: 72px;
  gap: 20px;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  color: #172026;
  text-decoration: none;
  font-weight: 800;
}

.logo-mark {
  display: grid;
  place-items: center;
  width: 34px;
  height: 34px;
  border-radius: 8px;
  background: #172026;
  color: #fff;
}

.nav-menu,
.nav-links,
.nav-actions {
  display: flex;
  align-items: center;
  gap: 20px;
}

.nav-links a,
.site-footer a {
  color: #40505c;
  text-decoration: none;
  font-size: 14px;
  font-weight: 600;
}

.button {
  display: inline-flex;
  justify-content: center;
  align-items: center;
  min-height: 42px;
  padding: 0 18px;
  border: 1px solid #172026;
  border-radius: 8px;
  background: #172026;
  color: #fff;
  text-decoration: none;
  font-size: 14px;
  font-weight: 750;
}

.button.secondary {
  border-color: var(--line);
  background: #fff;
  color: #172026;
}

.hero {
  padding: 88px 0 48px;
}

.hero-grid,
.split {
  display: grid;
  grid-template-columns: minmax(0, 0.95fr) minmax(380px, 1.05fr);
  gap: 56px;
  align-items: center;
}

.hero h1,
.section h1,
.section h2 {
  margin: 0;
  max-width: 780px;
  font-size: clamp(42px, 6vw, 72px);
  line-height: 0.98;
  letter-spacing: 0;
}

.section h2 {
  font-size: clamp(34px, 4vw, 54px);
}

.lead,
.section-copy {
  margin: 22px 0 0;
  max-width: 660px;
  color: var(--muted);
  font-size: 18px;
  line-height: 1.6;
}

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

.product-preview {
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #ffffff;
  box-shadow: 0 24px 70px rgba(20, 36, 50, 0.12);
  overflow: hidden;
}

.preview-topbar {
  display: flex;
  justify-content: space-between;
  padding: 14px 16px;
  border-bottom: 1px solid var(--line);
  background: var(--surface);
  color: #52616d;
  font-size: 13px;
  font-weight: 700;
}

.preview-body {
  display: grid;
  gap: 10px;
  padding: 16px;
}

.preview-row,
.preview-stat {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 16px;
  align-items: center;
  padding: 12px;
  border: 1px solid var(--line);
  border-radius: 8px;
}

.preview-row strong,
.preview-row span,
.preview-stat strong,
.preview-stat span {
  display: block;
}

.preview-row span,
.preview-stat span {
  color: var(--muted);
  font-size: 13px;
}

.section {
  padding: 72px 0;
}

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

.feature-grid,
.cards {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 16px;
  margin-top: 32px;
}

.feature,
.card,
.price-card {
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #fff;
  padding: 22px;
}

.feature strong,
.card h3,
.price-card h2 {
  display: block;
  margin: 0 0 10px;
  font-size: 20px;
}

.feature p,
.card p,
.price-card p {
  margin: 0;
  color: var(--muted);
  line-height: 1.55;
}

.workflow {
  display: grid;
  gap: 12px;
}

.workflow-step {
  display: grid;
  grid-template-columns: 48px 1fr;
  gap: 14px;
  align-items: start;
  padding: 16px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #fff;
}

.workflow-step span {
  display: grid;
  place-items: center;
  width: 44px;
  height: 44px;
  border-radius: 8px;
  background: #e8efff;
  color: var(--cobalt);
  font-weight: 800;
}

.price-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 16px;
  margin-top: 32px;
}

.price-card.featured {
  border-color: #172026;
  box-shadow: 0 20px 60px rgba(20, 36, 50, 0.12);
}

.price {
  margin: 20px 0;
  font-size: 38px;
  font-weight: 850;
}

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

.footer-grid {
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  gap: 20px;
  align-items: center;
}

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

.site-footer p {
  margin: 0;
  color: var(--muted);
  font-size: 13px;
  line-height: 1.5;
}

.nav-toggle,
.nav-toggle-button {
  display: none;
}

@media (max-width: 860px) {
  .hero-grid,
  .split,
  .feature-grid,
  .cards,
  .price-grid,
  .footer-grid {
    grid-template-columns: 1fr;
  }

  .nav-toggle-button {
    display: grid;
    gap: 4px;
  }

  .nav-toggle-button span {
    display: block;
    width: 26px;
    height: 2px;
    background: #172026;
  }

  .nav-menu {
    display: none;
    position: absolute;
    top: 72px;
    left: 0;
    right: 0;
    flex-direction: column;
    align-items: flex-start;
    padding: 20px;
    border-bottom: 1px solid var(--line);
    background: white;
  }

  .nav-toggle:checked ~ .nav-menu {
    display: flex;
  }

  .nav-links,
  .nav-actions {
    flex-direction: column;
    align-items: flex-start;
  }

  .hero {
    padding-top: 58px;
  }
}