:root {
  --bg: #f6f7f3;
  --surface: #ffffff;
  --ink: #13161a;
  --muted: #59616c;
  --line: #d9ddd6;
  --accent: #183d63;
  --accent-strong: #102b46;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

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

a {
  color: inherit;
}

.site-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  max-width: 1200px;
  margin: 0 auto;
  padding: 24px;
}

.brand {
  font-size: 1.15rem;
  font-weight: 700;
  text-decoration: none;
}

nav {
  display: flex;
  gap: 20px;
}

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

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 44px;
  padding: 0 18px;
  border: 1px solid transparent;
  text-decoration: none;
}

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

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

main {
  display: grid;
  gap: 72px;
  padding-bottom: 72px;
}

.hero,
.split-band,
.workflow,
.demo-band,
.legal-band {
  max-width: 1200px;
  width: calc(100% - 48px);
  margin: 0 auto;
}

.hero {
  display: grid;
  grid-template-columns: minmax(320px, 0.9fr) minmax(420px, 1.1fr);
  gap: 36px;
  align-items: stretch;
  min-height: 520px;
}

.hero-copy {
  display: flex;
  flex-direction: column;
  justify-content: center;
}

.hero h1 {
  max-width: 560px;
  margin: 0 0 18px;
  font-size: clamp(2.3rem, 4vw, 4rem);
  line-height: 0.98;
  letter-spacing: 0;
}

.hero p,
.section-head p,
.split-band p,
.legal-band p {
  max-width: 560px;
  color: var(--muted);
  font-size: 1.05rem;
  line-height: 1.6;
}

.hero-actions {
  display: flex;
  gap: 12px;
  margin-top: 22px;
}

.hero-media {
  min-height: 520px;
  background: var(--surface);
  border: 1px solid var(--line);
  overflow: hidden;
}

.hero-media iframe {
  width: 100%;
  height: 100%;
  border: 0;
}

.split-band,
.legal-band {
  display: grid;
  grid-template-columns: minmax(280px, 0.8fr) minmax(360px, 1.2fr);
  gap: 36px;
  align-items: start;
}

h2 {
  margin: 0 0 14px;
  font-size: 1.8rem;
  letter-spacing: 0;
}

.fact-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  margin: 0;
  border-top: 1px solid var(--line);
  border-left: 1px solid var(--line);
}

.fact-grid div {
  min-height: 120px;
  padding: 20px;
  border-right: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  background: var(--surface);
}

.fact-grid dt {
  color: var(--muted);
  font-size: 0.85rem;
}

.fact-grid dd {
  margin: 10px 0 0;
  font-size: 1.3rem;
}

.workflow ol {
  display: grid;
  gap: 12px;
  margin: 20px 0 0;
  padding-left: 22px;
  color: var(--muted);
  line-height: 1.6;
}

.section-head {
  display: flex;
  justify-content: space-between;
  gap: 28px;
  align-items: end;
  margin-bottom: 22px;
}

.demo-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 14px;
}

.demo-grid a {
  display: grid;
  gap: 8px;
  min-height: 132px;
  padding: 18px;
  background: var(--surface);
  border: 1px solid var(--line);
  text-decoration: none;
}

.demo-grid span {
  color: var(--muted);
}

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

.legal-links a {
  padding: 16px 18px;
  background: var(--surface);
  border: 1px solid var(--line);
  text-decoration: none;
}

.legal-page {
  max-width: 760px;
  width: calc(100% - 48px);
  margin: 72px auto;
}

.legal-page h1 {
  margin: 0 0 18px;
  font-size: 2.3rem;
}

.legal-page p {
  color: var(--muted);
  font-size: 1.05rem;
  line-height: 1.7;
}

footer {
  display: flex;
  flex-wrap: wrap;
  gap: 14px 24px;
  max-width: 1200px;
  width: calc(100% - 48px);
  margin: 0 auto 32px;
  padding-top: 24px;
  border-top: 1px solid var(--line);
  color: var(--muted);
}

@media (max-width: 900px) {
  .site-header {
    flex-wrap: wrap;
  }

  nav {
    order: 3;
    width: 100%;
    justify-content: space-between;
  }

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

  .hero-media {
    min-height: 420px;
  }

  .section-head {
    display: block;
  }

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

@media (max-width: 640px) {
  .hero,
  .split-band,
  .workflow,
  .demo-band,
  .legal-band {
    width: calc(100% - 32px);
  }

  .site-header {
    padding: 18px 16px;
  }

  .hero {
    min-height: 0;
  }

  .hero h1 {
    font-size: 2.25rem;
  }

  .hero-actions {
    flex-direction: column;
  }

  .fact-grid,
  .demo-grid {
    grid-template-columns: 1fr;
  }
}