:root {
  color-scheme: light;
  --bg: #f7f7f2;
  --surface: #ffffff;
  --text: #161616;
  --muted: #5f6258;
  --line: #d8dacd;
  --accent: #0f766e;
  --accent-strong: #134e4a;
  --soft: #e8f3ef;
}

* {
  box-sizing: border-box;
}

html {
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  background: var(--bg);
  color: var(--text);
}

body {
  margin: 0;
  min-height: 100vh;
}

a {
  color: var(--accent-strong);
}

.site-header {
  border-bottom: 1px solid var(--line);
  background: rgba(255, 255, 255, 0.86);
}

.nav {
  align-items: center;
  display: flex;
  gap: 20px;
  justify-content: space-between;
  margin: 0 auto;
  max-width: 1120px;
  padding: 18px 20px;
}

.brand {
  color: var(--text);
  font-size: 18px;
  font-weight: 800;
  text-decoration: none;
}

.nav-links {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
}

.nav-links a {
  color: var(--muted);
  font-size: 14px;
  font-weight: 600;
  text-decoration: none;
}

.hero {
  margin: 0 auto;
  max-width: 1120px;
  padding: 56px 20px 34px;
}

.eyebrow {
  color: var(--accent-strong);
  font-size: 13px;
  font-weight: 800;
  margin: 0 0 12px;
  text-transform: uppercase;
}

h1 {
  font-size: clamp(38px, 8vw, 86px);
  line-height: 0.95;
  margin: 0;
  max-width: 900px;
}

.lead {
  color: var(--muted);
  font-size: 19px;
  line-height: 1.55;
  margin: 24px 0 0;
  max-width: 720px;
}

.content {
  margin: 0 auto;
  max-width: 1120px;
  padding: 22px 20px 64px;
}

.section-title {
  border-top: 1px solid var(--line);
  font-size: 22px;
  margin: 0;
  padding-top: 28px;
}

.app-grid {
  display: grid;
  gap: 16px;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  margin-top: 18px;
}

.app-card {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 18px;
}

.app-card h2 {
  font-size: 20px;
  margin: 0 0 8px;
}

.app-card p {
  color: var(--muted);
  line-height: 1.5;
  margin: 0 0 14px;
}

.button-row {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.button {
  align-items: center;
  background: var(--accent);
  border-radius: 6px;
  color: white;
  display: inline-flex;
  font-size: 14px;
  font-weight: 800;
  min-height: 38px;
  padding: 9px 12px;
  text-decoration: none;
}

.button.secondary {
  background: var(--soft);
  color: var(--accent-strong);
}

.doc {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: 8px;
  line-height: 1.65;
  padding: 24px;
}

.doc h1 {
  font-size: 36px;
  line-height: 1.05;
}

.doc h2 {
  border-top: 1px solid var(--line);
  margin-top: 28px;
  padding-top: 20px;
}

.site-footer {
  border-top: 1px solid var(--line);
  color: var(--muted);
  font-size: 14px;
  padding: 24px 20px 44px;
}

.footer-inner {
  margin: 0 auto;
  max-width: 1120px;
}

@media (max-width: 640px) {
  .nav {
    align-items: flex-start;
    flex-direction: column;
  }

  .hero {
    padding-top: 38px;
  }

  .doc {
    padding: 18px;
  }
}