:root {
  color-scheme: light;
  --surface-0: #f4f4f2;
  --surface-1: #fcfcfb;
  --surface-2: #ecebe7;
  --text-primary: #0b0b0b;
  --text-secondary: #52514e;
  --text-muted: #7a7974;
  --hairline: #dcdbd6;
  --accent: #2a78d6;
  --sans: -apple-system, BlinkMacSystemFont, "Segoe UI", "Helvetica Neue", Arial, sans-serif;
  --mono: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
}
@media (prefers-color-scheme: dark) {
  :root {
    color-scheme: dark;
    --surface-0: #121211;
    --surface-1: #1a1a19;
    --surface-2: #262624;
    --text-primary: #f0efec;
    --text-secondary: #c3c2b7;
    --text-muted: #8d8c85;
    --hairline: #383835;
    --accent: #5a9cec;
  }
}
* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body { margin: 0; background: var(--surface-0); color: var(--text-primary); font: 16px/1.6 var(--sans); }
a { color: var(--accent); text-underline-offset: 2px; }
img { max-width: 100%; height: auto; }

.top { display: flex; align-items: center; justify-content: space-between; gap: 12px 24px; flex-wrap: wrap;
  padding: 14px 20px; background: var(--surface-1); border-bottom: 1px solid var(--hairline); }
.top .brand { font-weight: 650; font-size: 17px; color: var(--text-primary); text-decoration: none; }
.top nav { display: flex; gap: 6px 18px; flex-wrap: wrap; font-size: 14px; }
.top nav a { color: var(--text-secondary); text-decoration: none; }
.top nav a:hover { color: var(--text-primary); }

.doc { max-width: 760px; margin: 0 auto; padding: 32px 16px 48px; }
.doc h1 { font-size: 32px; line-height: 1.2; margin: 0 0 16px; }
.doc h2 { font-size: 23px; margin: 44px 0 10px; padding-top: 12px; border-top: 1px solid var(--hairline); }
.doc h3 { font-size: 18px; margin: 28px 0 6px; }
.doc p, .doc li { color: var(--text-primary); }
.doc img { display: block; margin: 16px 0 20px; border: 1px solid var(--hairline); border-radius: 10px; }
.doc code { font: 0.88em var(--mono); background: var(--surface-2); padding: 1px 5px; border-radius: 4px; }
.doc pre { background: var(--surface-1); border: 1px solid var(--hairline); border-radius: 8px; padding: 12px 14px; overflow-x: auto; }
.doc pre code { background: none; padding: 0; font-size: 13.5px; line-height: 1.5; }
.doc table { width: 100%; border-collapse: collapse; margin: 12px 0 20px; font-size: 14.5px; display: block; overflow-x: auto; }
.doc th, .doc td { text-align: left; vertical-align: top; padding: 7px 10px; border-bottom: 1px solid var(--hairline); }
.doc th { font-size: 13px; color: var(--text-secondary); }
.doc td:first-child { white-space: nowrap; font-weight: 600; }

.foot { max-width: 760px; margin: 0 auto; padding: 20px 16px 40px; font-size: 13px; color: var(--text-muted);
  border-top: 1px solid var(--hairline); }
.foot a { color: var(--text-secondary); }

/* the product page */
.hero { max-width: 1080px; margin: 0 auto; padding: 56px 16px 24px; text-align: center; }
.hero h1 { font-size: clamp(30px, 5vw, 48px); line-height: 1.12; margin: 0 auto 16px; max-width: 820px; letter-spacing: -0.01em; }
.hero p.lede { font-size: 19px; color: var(--text-secondary); max-width: 680px; margin: 0 auto 26px; }
.buttons { display: flex; gap: 10px; justify-content: center; flex-wrap: wrap; }
.button { display: inline-block; padding: 10px 18px; border-radius: 8px; border: 1px solid var(--hairline);
  background: var(--surface-1); color: var(--text-primary); text-decoration: none; font-weight: 550; }
.button.primary { background: var(--accent); border-color: var(--accent); color: #fff; }
.small { font-size: 13px; color: var(--text-muted); margin-top: 12px; }
.shot { max-width: 1080px; margin: 12px auto 0; padding: 0 16px; }
.shot img { display: block; border: 1px solid var(--hairline); border-radius: 12px; box-shadow: 0 12px 40px rgba(0,0,0,.12); }
.shot figcaption { font-size: 13px; color: var(--text-muted); text-align: center; margin-top: 10px; }
.features { max-width: 1080px; margin: 0 auto; padding: 56px 16px 8px; display: grid; gap: 28px;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr)); }
.features h2 { font-size: 19px; margin: 0 0 6px; }
.features p { margin: 0; color: var(--text-secondary); }
.band { max-width: 1080px; margin: 0 auto; padding: 48px 16px 8px; display: grid; gap: 32px; align-items: center;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr)); }
.band h2 { font-size: 24px; margin: 0 0 10px; }
.band p { color: var(--text-secondary); margin: 0 0 12px; }
.band img { border: 1px solid var(--hairline); border-radius: 10px; }
.band pre { background: var(--surface-1); border: 1px solid var(--hairline); border-radius: 8px; padding: 12px 14px; overflow-x: auto; font: 13.5px/1.5 var(--mono); margin: 0 0 12px; }