:root {
  color-scheme: light;
  --ink: #17212b;
  --muted: #5d6978;
  --line: #d9e1ea;
  --paper: #f7f9fb;
  --panel: #ffffff;
  --accent: #0f766e;
  --accent-dark: #115e59;
  --blue: #2563eb;
  --gold: #b45309;
}

* {
  box-sizing: border-box;
}

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

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

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

.site-header {
  position: sticky;
  top: 0;
  z-index: 10;
  border-bottom: 1px solid var(--line);
  background: rgba(247, 249, 251, 0.94);
  backdrop-filter: blur(14px);
}

.nav {
  width: min(1120px, calc(100% - 32px));
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: 72px;
  gap: 20px;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  color: var(--ink);
  font-weight: 760;
  text-decoration: none;
}

.brand img {
  width: 36px;
  height: 36px;
  border-radius: 8px;
}

.nav-links {
  display: flex;
  gap: 18px;
  flex-wrap: wrap;
  justify-content: flex-end;
}

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

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

.hero {
  width: min(1120px, calc(100% - 32px));
  min-height: calc(100vh - 72px);
  margin: 0 auto;
  display: grid;
  grid-template-columns: minmax(0, 0.92fr) minmax(320px, 1.08fr);
  align-items: center;
  gap: 42px;
  padding: 44px 0 64px;
}

.eyebrow {
  color: var(--accent-dark);
  font-size: 14px;
  font-weight: 760;
  letter-spacing: 0;
  margin: 0 0 14px;
}

h1 {
  margin: 0;
  font-size: clamp(44px, 8vw, 84px);
  line-height: 0.95;
  letter-spacing: 0;
}

.lede {
  max-width: 680px;
  margin: 24px 0 0;
  color: var(--muted);
  font-size: 20px;
  line-height: 1.55;
}

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

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 44px;
  padding: 0 18px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--panel);
  color: var(--ink);
  font-weight: 700;
  text-decoration: none;
}

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

.hero-visual {
  border: 1px solid var(--line);
  border-radius: 8px;
  overflow: hidden;
  background: var(--panel);
  box-shadow: 0 24px 72px rgba(23, 33, 43, 0.14);
}

.hero-visual img {
  display: block;
  width: 100%;
  height: auto;
}

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

.section.alt {
  background: var(--paper);
}

.inner {
  width: min(1120px, calc(100% - 32px));
  margin: 0 auto;
  padding: 68px 0;
}

h2 {
  margin: 0 0 18px;
  font-size: 34px;
  line-height: 1.12;
  letter-spacing: 0;
}

h3 {
  margin: 0 0 8px;
  font-size: 18px;
}

p {
  color: var(--muted);
  line-height: 1.7;
}

.grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 18px;
  margin-top: 28px;
}

.card {
  min-height: 172px;
  padding: 22px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--panel);
}

.card p {
  margin: 0;
}

.doc-layout {
  width: min(900px, calc(100% - 32px));
  margin: 0 auto;
  padding: 58px 0 78px;
}

.doc-layout h1 {
  font-size: 48px;
  line-height: 1;
}

.doc-layout h2 {
  margin-top: 40px;
  font-size: 26px;
}

.doc-layout li {
  color: var(--muted);
  line-height: 1.7;
  margin: 8px 0;
}

.callout {
  border-left: 4px solid var(--gold);
  background: #fff7ed;
  padding: 16px 18px;
  border-radius: 0 8px 8px 0;
}

.footer {
  border-top: 1px solid var(--line);
  background: #111827;
  color: #d1d5db;
}

.footer .inner {
  padding: 30px 0;
  display: flex;
  justify-content: space-between;
  gap: 20px;
  flex-wrap: wrap;
}

.footer a {
  color: #ccfbf1;
}

@media (max-width: 860px) {
  .nav {
    align-items: flex-start;
    flex-direction: column;
    padding: 14px 0;
  }

  .hero {
    grid-template-columns: 1fr;
    min-height: auto;
  }

  .grid {
    grid-template-columns: 1fr;
  }
}