:root {
  color-scheme: light;
  --bg: #f7f8f5;
  --ink: #18211f;
  --muted: #5d6862;
  --line: #d9ded6;
  --panel: #ffffff;
  --accent: #0d6b5f;
  --accent-dark: #0a4c45;
  --warm: #d88c45;
  --soft: #e9f1ed;
  --max: 1120px;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

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

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

a:hover {
  text-decoration: underline;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 20;
  border-bottom: 1px solid var(--line);
  background: rgba(247, 248, 245, 0.94);
  backdrop-filter: blur(14px);
}

.nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  width: min(var(--max), calc(100% - 40px));
  margin: 0 auto;
  padding: 16px 0;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  color: var(--ink);
  font-weight: 760;
  letter-spacing: 0;
}

.brand-mark {
  display: grid;
  place-items: center;
  width: 34px;
  height: 34px;
  border-radius: 8px;
  color: #ffffff;
  background: var(--accent);
  font-size: 14px;
}

.nav-links {
  display: flex;
  align-items: center;
  justify-content: flex-end;
  gap: 18px;
  flex-wrap: wrap;
  font-size: 14px;
}

.nav-links a {
  color: var(--muted);
  font-weight: 650;
}

.nav-links a[aria-current="page"] {
  color: var(--ink);
}

.hero {
  position: relative;
  overflow: hidden;
  border-bottom: 1px solid var(--line);
  background:
    linear-gradient(135deg, rgba(13, 107, 95, 0.1), rgba(216, 140, 69, 0.1)),
    radial-gradient(circle at 82% 18%, rgba(13, 107, 95, 0.14), transparent 30%),
    var(--bg);
}

.hero-inner,
.section-inner {
  width: min(var(--max), calc(100% - 40px));
  margin: 0 auto;
}

.hero-inner {
  display: grid;
  grid-template-columns: minmax(0, 1.1fr) minmax(280px, 0.9fr);
  gap: 48px;
  align-items: center;
  min-height: calc(100vh - 68px);
  padding: 78px 0 64px;
}

.eyebrow {
  margin: 0 0 14px;
  color: var(--accent-dark);
  font-size: 13px;
  font-weight: 760;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

h1,
h2,
h3 {
  margin: 0;
  line-height: 1.08;
  letter-spacing: 0;
}

h1 {
  max-width: 780px;
  font-size: clamp(42px, 6vw, 76px);
}

h2 {
  font-size: clamp(30px, 4vw, 46px);
}

h3 {
  font-size: 20px;
}

p {
  margin: 0;
}

.lead {
  max-width: 720px;
  margin-top: 24px;
  color: var(--muted);
  font-size: clamp(18px, 2vw, 21px);
}

.hero-actions {
  display: flex;
  gap: 14px;
  flex-wrap: wrap;
  margin-top: 34px;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 46px;
  padding: 12px 18px;
  border: 1px solid var(--accent);
  border-radius: 8px;
  color: #ffffff;
  background: var(--accent);
  font-weight: 720;
}

.button.secondary {
  color: var(--accent-dark);
  background: transparent;
}

.button:hover {
  text-decoration: none;
  background: var(--accent-dark);
  border-color: var(--accent-dark);
}

.button.secondary:hover {
  color: #ffffff;
}

.hero-panel {
  padding: 28px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: rgba(255, 255, 255, 0.82);
  box-shadow: 0 24px 70px rgba(24, 33, 31, 0.08);
}

.signal-list {
  display: grid;
  gap: 16px;
  margin: 24px 0 0;
  padding: 0;
  list-style: none;
}

.signal-list li {
  display: grid;
  grid-template-columns: 12px 1fr;
  gap: 12px;
  align-items: start;
  color: var(--muted);
}

.signal-list li::before {
  content: "";
  width: 9px;
  height: 9px;
  margin-top: 8px;
  border-radius: 3px;
  background: var(--warm);
}

.section {
  padding: 76px 0;
}

.section.alt {
  background: #ffffff;
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}

.section-heading {
  display: grid;
  gap: 14px;
  max-width: 760px;
  margin-bottom: 34px;
}

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

.two-col {
  display: grid;
  grid-template-columns: minmax(0, 0.9fr) minmax(0, 1.1fr);
  gap: 44px;
  align-items: start;
}

.card,
.callout {
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--panel);
}

.card {
  padding: 24px;
}

.card p,
.callout p,
.section-heading p,
.content p,
.content li {
  color: var(--muted);
}

.card h3 {
  margin-bottom: 10px;
}

.callout {
  padding: 28px;
  background: var(--soft);
}

.content {
  display: grid;
  gap: 20px;
}

.content ul {
  display: grid;
  gap: 10px;
  margin: 0;
  padding-left: 22px;
}

.page-hero {
  border-bottom: 1px solid var(--line);
  background: #ffffff;
}

.page-hero .section-inner {
  padding: 74px 0 56px;
}

.page-hero h1 {
  font-size: clamp(38px, 5vw, 62px);
}

.api-summary {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 18px;
}

.fact {
  padding: 20px;
  border-left: 4px solid var(--accent);
  background: #ffffff;
}

.fact strong {
  display: block;
  margin-bottom: 6px;
}

.footer {
  border-top: 1px solid var(--line);
  background: var(--ink);
  color: #f7f8f5;
}

.footer-inner {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 32px;
  width: min(var(--max), calc(100% - 40px));
  margin: 0 auto;
  padding: 36px 0;
}

.footer a {
  color: #f7f8f5;
}

.footer-links {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
  justify-content: flex-end;
  font-size: 14px;
}

.small {
  color: #bcc7c1;
  font-size: 14px;
}

@media (max-width: 840px) {
  .nav {
    align-items: flex-start;
    flex-direction: column;
  }

  .nav-links {
    justify-content: flex-start;
  }

  .hero-inner,
  .two-col,
  .api-summary {
    grid-template-columns: 1fr;
  }

  .hero-inner {
    min-height: auto;
    padding: 58px 0;
  }

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

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

  .footer-links {
    justify-content: flex-start;
  }
}