:root {
  color-scheme: light dark;
  --bg: #f7f4eb;
  --surface: #fffdf7;
  --ink: #18201d;
  --muted: #66706b;
  --line: #d7ddd8;
  --accent: #157f63;
  --accent-ink: #ffffff;
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #101513;
    --surface: #171e1b;
    --ink: #eef4f0;
    --muted: #a8b4ae;
    --line: #34403a;
    --accent: #50c49d;
    --accent-ink: #07120e;
  }
}

* { box-sizing: border-box; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font: 16px/1.65 system-ui, sans-serif;
}
a { color: inherit; }
.topbar {
  position: sticky;
  top: 0;
  z-index: 10;
  display: flex;
  min-height: 64px;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  padding: 0 5vw;
  border-bottom: 1px solid var(--line);
  background: color-mix(in srgb, var(--bg) 92%, transparent);
  backdrop-filter: blur(12px);
}
.brand { display: inline-flex; align-items: center; gap: 10px; font-weight: 750; text-decoration: none; }
.brand-mark { display: grid; width: 32px; height: 32px; place-items: center; background: var(--accent); color: var(--accent-ink); }
nav { display: flex; gap: 22px; }
nav a { text-decoration: none; color: var(--muted); }
main { width: min(1180px, 90vw); margin: 0 auto; }
.intro { min-height: 62vh; display: grid; align-content: center; max-width: 820px; padding: 72px 0; }
h1 { margin: 0; max-width: 760px; font-size: clamp(2.6rem, 8vw, 5.6rem); line-height: 1.02; font-weight: 800; letter-spacing: 0; }
h2 { margin: 0 0 16px; font-size: clamp(1.6rem, 4vw, 2.5rem); letter-spacing: 0; }
.intro > p:not(.eyebrow) { max-width: 670px; color: var(--muted); font-size: 1.1rem; }
.eyebrow { color: var(--accent); font-weight: 800; text-transform: uppercase; font-size: .78rem; }
.actions { display: flex; gap: 10px; flex-wrap: wrap; margin-top: 20px; }
.button { min-height: 44px; display: inline-flex; align-items: center; padding: 0 17px; border: 1px solid var(--line); text-decoration: none; }
.button.primary { background: var(--accent); color: var(--accent-ink); border-color: var(--accent); }
.band { margin: 24px 0 72px; padding: 32px; border: 1px solid var(--line); background: var(--surface); }
.band.compact { max-width: 850px; }
.api-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 1px; background: var(--line); border: 1px solid var(--line); }
.api-grid a { min-height: 126px; display: grid; align-content: center; gap: 5px; padding: 18px; background: var(--surface); text-decoration: none; }
.api-grid span, .content-grid p, .content-grid li { color: var(--muted); }
.content-grid { display: grid; grid-template-columns: minmax(220px, .75fr) 1.25fr; gap: 56px; padding: 64px 0; border-top: 1px solid var(--line); }
footer { margin-top: 72px; padding: 28px 5vw; border-top: 1px solid var(--line); color: var(--muted); }
@media (max-width: 720px) {
  .topbar { align-items: flex-start; padding-block: 14px; }
  nav { display: none; }
  .intro { min-height: auto; padding: 72px 0; }
  .api-grid { grid-template-columns: 1fr; }
  .content-grid { grid-template-columns: 1fr; gap: 12px; }
  .band { padding: 20px; }
}