:root { --series-1: #00897b; --series-2: #eb6834; --bg: #ffffff; --bg-soft: #f5f7fa; --text: #17202b; --muted: #5a6573; --line: #e2e7ee; --accent: #0b6e69;
  --accent-soft: #e6f4f2; --on-accent: #ffffff; --code-bg: #0f1720; --code-text: #e6edf3; --shadow: 0 10px 30px rgba(15, 23, 32, .12); }
@media (prefers-color-scheme: dark) { :root { --series-1: #26a69a; --series-2: #d95926; --bg: #0f141a; --bg-soft: #161d25; --text: #e6edf3; --muted: #9aa6b2;
  --line: #26303b; --accent: #4fc3b8; --accent-soft: #12302e; --on-accent: #06201e; --code-bg: #0a0e13; --shadow: 0 10px 30px rgba(0,0,0,.4); } }
* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body { margin: 0; background: var(--bg); color: var(--text); line-height: 1.6;
  font: 17px/1.6 Inter, -apple-system, BlinkMacSystemFont, "Segoe UI", Helvetica, Arial, sans-serif; }
a { color: var(--accent); text-decoration: none; } a:hover { text-decoration: underline; }
.wrap { max-width: 1080px; margin: 0 auto; padding: 0 24px; }
header.top { position: sticky; top: 0; z-index: 10; background: color-mix(in srgb, var(--bg) 88%, transparent);
  backdrop-filter: blur(8px); border-bottom: 1px solid var(--line); }
header.top .wrap { display: flex; align-items: center; gap: 26px; height: 60px; }
.brand { font-weight: 800; font-size: 20px; letter-spacing: -.02em; color: var(--text); margin-right: auto; }
.brand span { color: var(--accent); }
header.top nav a { color: var(--muted); font-size: 15px; font-weight: 500; } header.top nav a:hover { color: var(--text); }
header.top nav { display: flex; gap: 22px; }
.hero { padding: 84px 0 56px; background: radial-gradient(1200px 400px at 20% -10%, var(--accent-soft), transparent); }
.hero h1 { font-size: clamp(36px, 6vw, 58px); line-height: 1.08; letter-spacing: -.035em; margin: 0 0 20px; max-width: 820px; }
.hero p.lead { font-size: clamp(18px, 2.2vw, 21px); color: var(--muted); max-width: 720px; margin: 0 0 32px; }
.buttons { display: flex; flex-wrap: wrap; gap: 12px; }
.btn { display: inline-block; padding: 12px 22px; border-radius: 10px; font-weight: 600; font-size: 16px; }
.btn.primary { background: var(--accent); color: var(--on-accent); } .btn.primary:hover { text-decoration: none; filter: brightness(1.08); }
.btn.ghost { border: 1px solid var(--line); color: var(--text); background: var(--bg); } .btn.ghost:hover { text-decoration: none; border-color: var(--muted); }
pre.install { margin: 36px 0 0; max-width: 720px; }
pre { background: var(--code-bg); color: var(--code-text); padding: 16px 18px; border-radius: 10px; overflow-x: auto;
  font: 14.5px/1.55 ui-monospace, SFMono-Regular, Menlo, Consolas, monospace; }
code { font: .9em ui-monospace, SFMono-Regular, Menlo, Consolas, monospace; background: var(--bg-soft); padding: .1em .35em;
  border-radius: 5px; } pre code { background: none; padding: 0; font-size: inherit; }
section { padding: 64px 0; } section.soft { background: var(--bg-soft); border-block: 1px solid var(--line); }
h2.sec { font-size: clamp(26px, 3.4vw, 34px); letter-spacing: -.025em; margin: 0 0 10px; }
p.sub { color: var(--muted); margin: 0 0 34px; max-width: 720px; }
.stats { display: grid; grid-template-columns: repeat(auto-fit, minmax(220px, 1fr)); gap: 16px; }
.stat { background: var(--bg); border: 1px solid var(--line); border-radius: 14px; padding: 22px; }
.stat .n { font-size: 34px; font-weight: 800; letter-spacing: -.03em; color: var(--accent); line-height: 1.1; }
.stat .l { color: var(--muted); font-size: 15px; margin-top: 8px; }
.cards { display: grid; grid-template-columns: repeat(auto-fit, minmax(240px, 1fr)); gap: 18px; }
.card { border: 1px solid var(--line); border-radius: 14px; padding: 22px; background: var(--bg); }
.card h3 { margin: 0 0 8px; font-size: 18px; } .card p { margin: 0; color: var(--muted); font-size: 15.5px; }
.demo img { width: 100%; height: auto; border-radius: 12px; box-shadow: var(--shadow); display: block; }
.demo .cap { color: var(--muted); font-size: 15px; margin-top: 14px; }
.pills { display: flex; flex-wrap: wrap; gap: 10px; } .pill { border: 1px solid var(--line); border-radius: 999px;
  padding: 6px 14px; font-size: 15px; background: var(--bg); }
.row2 { display: grid; grid-template-columns: repeat(auto-fit, minmax(300px, 1fr)); gap: 34px; }
.row2 h3 { margin: 0 0 12px; font-size: 17px; color: var(--muted); font-weight: 600; text-transform: uppercase;
  letter-spacing: .06em; font-size: 13px; }
footer.bottom { border-top: 1px solid var(--line); color: var(--muted); font-size: 15px; padding: 28px 0 40px; }
footer.bottom .wrap { display: flex; flex-wrap: wrap; gap: 8px 22px; }
/* the post */
article.post { max-width: 780px; margin: 0 auto; padding: 56px 24px 24px; }
article.post h1 { font-size: clamp(32px, 5vw, 46px); line-height: 1.12; letter-spacing: -.03em; margin: 0 0 14px; }
article.post h1 + p em { display: block; font-style: normal; color: var(--muted); font-size: 19px; }
article.post h2 { font-size: 27px; letter-spacing: -.02em; margin: 52px 0 12px; padding-top: 6px; }
article.post h3 { font-size: 20px; margin: 36px 0 10px; }
article.post p, article.post li { font-size: 17px; }
.tldr { background: var(--accent-soft); border: 1px solid color-mix(in srgb, var(--accent) 30%, transparent);
  border-radius: 14px; padding: 6px 26px 10px; margin: 30px 0; }
.tldr h2 { margin-top: 16px !important; font-size: 15px !important; text-transform: uppercase; letter-spacing: .08em; color: var(--accent); }
.table { overflow-x: auto; margin: 18px 0 24px; border: 1px solid var(--line); border-radius: 12px; }
table { border-collapse: collapse; width: 100%; font-size: 15.5px; }
th, td { padding: 10px 14px; text-align: left; vertical-align: top; border-bottom: 1px solid var(--line); }
th { background: var(--bg-soft); font-weight: 600; } tr:last-child td { border-bottom: 0; }
td:first-child { min-width: 10em; }
figure.chart { margin: 22px 0 10px; } figure.chart svg { width: 100%; height: auto; display: block; }
figure.chart figcaption { color: var(--muted); font-size: 14.5px; margin-top: 6px; }
.legend { display: flex; gap: 18px; font-size: 14.5px; color: var(--muted); margin: 0 0 6px; }
.legend i { display: inline-block; width: 12px; height: 12px; border-radius: 3px; margin-right: 7px; vertical-align: -1px; }
svg text { font-family: Inter, -apple-system, "Segoe UI", sans-serif; }
svg .val { fill: var(--text); font-size: 13px; font-weight: 600; } svg .cat { fill: var(--muted); font-size: 13.5px; }
svg .note { fill: var(--accent); font-size: 13px; font-weight: 700; } svg .grid { stroke: var(--line); }
svg rect.bar:hover { filter: brightness(1.12); }
@media (max-width: 640px) { header.top nav a.hide-sm { display: none; } .hero { padding: 56px 0 40px; } section { padding: 48px 0; } }