:root {
  color-scheme: light;
  --bg: #f8fafc;
  --paper: #ffffff;
  --ink: #101820;
  --muted: #526172;
  --soft: #e4ebf2;
  --line: #d7e0e9;
  --blue: #2167f3;
  --blue-dark: #184bb2;
  --green: #23b26d;
  --dark: #111820;
  --shadow: 0 24px 70px rgba(16, 24, 32, 0.13);
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  line-height: 1.6;
  letter-spacing: 0;
}

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

a:hover {
  color: var(--blue-dark);
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 20;
  background: rgba(248, 250, 252, 0.92);
  border-bottom: 1px solid rgba(215, 224, 233, 0.8);
  backdrop-filter: blur(18px);
}

.nav {
  width: min(1120px, calc(100% - 32px));
  min-height: 68px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  color: var(--ink);
  font-weight: 760;
  font-size: 18px;
}

.brand-mark {
  width: 32px;
  height: 32px;
  border-radius: 9px;
  display: inline-grid;
  place-items: center;
  background: linear-gradient(135deg, #1d6bff 0%, #21b36f 100%);
  color: #fff;
  font-weight: 850;
  line-height: 1;
  box-shadow: 0 12px 28px rgba(33, 103, 243, 0.2);
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 22px;
  font-size: 14px;
  font-weight: 650;
}

.nav-links a {
  color: #2d3b49;
}

.nav-links a:hover {
  color: var(--blue);
}

.hero {
  width: min(1120px, calc(100% - 32px));
  min-height: calc(100vh - 68px);
  margin: 0 auto;
  display: grid;
  grid-template-columns: minmax(0, 0.82fr) minmax(420px, 1.18fr);
  align-items: center;
  gap: 56px;
  padding: 72px 0 52px;
}

.hero h1 {
  margin: 0;
  font-size: clamp(52px, 7vw, 92px);
  line-height: 0.95;
  letter-spacing: 0;
}

.hero-copy {
  margin: 24px 0 0;
  max-width: 590px;
  color: var(--muted);
  font-size: 20px;
  line-height: 1.55;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 34px;
}

.button {
  min-height: 46px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  border-radius: 8px;
  border: 1px solid transparent;
  padding: 0 18px;
  font-size: 15px;
  font-weight: 720;
}

.button.primary {
  background: var(--ink);
  color: #fff;
}

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

.hero-media {
  margin: 0;
}

.hero-panel {
  display: grid;
  gap: 14px;
}

.metric-card {
  background: var(--paper);
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 22px;
  box-shadow: 0 18px 48px rgba(16, 24, 32, 0.08);
}

.metric-label {
  display: block;
  margin-bottom: 6px;
  color: var(--muted);
  font-size: 13px;
  font-weight: 720;
  text-transform: uppercase;
}

.metric-card strong {
  display: block;
  font-size: 22px;
  line-height: 1.2;
}

.product-preview {
  width: 100%;
  height: auto;
  display: block;
  border-radius: 8px;
  box-shadow: var(--shadow);
}

.section {
  border-top: 1px solid var(--line);
  background: var(--paper);
}

.section.alt {
  background: #f1f6fb;
}

.section-inner {
  width: min(1120px, calc(100% - 32px));
  margin: 0 auto;
  padding: 78px 0;
}

.section h2 {
  margin: 0;
  font-size: clamp(32px, 4vw, 50px);
  line-height: 1.05;
  letter-spacing: 0;
}

.lead {
  max-width: 760px;
  margin: 18px 0 0;
  color: var(--muted);
  font-size: 18px;
}

.feature-grid {
  margin-top: 36px;
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 16px;
}

.feature-card,
.contact-card,
.legal-card {
  background: var(--paper);
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 22px;
}

.feature-card h3,
.contact-card h3,
.legal-card h3 {
  margin: 0 0 10px;
  font-size: 18px;
  line-height: 1.25;
}

.feature-card p,
.contact-card p,
.legal-card p {
  margin: 0;
  color: var(--muted);
}

.legal-layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(260px, 0.42fr);
  gap: 28px;
  align-items: start;
}

.legal-body {
  max-width: 820px;
}

.legal-body h1 {
  margin: 0 0 12px;
  font-size: clamp(38px, 5vw, 64px);
  line-height: 1;
}

.legal-body h2 {
  margin: 38px 0 10px;
  font-size: 25px;
  line-height: 1.2;
}

.legal-body p,
.legal-body li {
  color: #394858;
}

.legal-body ul {
  padding-left: 22px;
}

.meta {
  color: var(--muted);
  font-size: 15px;
}

.contact-grid {
  margin-top: 32px;
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 16px;
}

.site-footer {
  background: var(--dark);
  color: #e9eef5;
}

.footer-inner {
  width: min(1120px, calc(100% - 32px));
  margin: 0 auto;
  padding: 36px 0;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  font-size: 14px;
}

.footer-links {
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
}

.footer-links a {
  color: #d7e4f2;
}

.notice {
  border-left: 3px solid var(--blue);
  background: #eef5ff;
  padding: 16px 18px;
  border-radius: 8px;
  color: #263646;
}

@media (max-width: 900px) {
  .nav {
    min-height: auto;
    padding: 18px 0;
    align-items: flex-start;
    flex-direction: column;
  }

  .nav-links {
    width: 100%;
    overflow-x: auto;
    padding-bottom: 4px;
  }

  .hero {
    min-height: auto;
    grid-template-columns: 1fr;
    gap: 34px;
    padding: 54px 0 44px;
  }

  .hero h1 {
    font-size: clamp(48px, 14vw, 72px);
  }

  .hero-copy {
    font-size: 18px;
  }

  .feature-grid,
  .contact-grid,
  .legal-layout {
    grid-template-columns: 1fr;
  }

  .section-inner {
    padding: 56px 0;
  }

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

@media (max-width: 520px) {
  .nav,
  .hero,
  .section-inner,
  .footer-inner {
    width: min(100% - 24px, 1120px);
  }

  .nav-links {
    gap: 16px;
    font-size: 13px;
  }

  .button {
    width: 100%;
  }
}