:root {
  --bg: #fbfaf7; --fg: #1d1f1c; --muted: #5d625a; --line: #e2dfd6; --card: #ffffff;
  --accent: #1f6f50; --accent-fg: #ffffff; --warn: #9a4b00; --bad: #a3262a; --code: #f1efe8;
  --radius: 10px; --mono: ui-monospace, "SF Mono", Menlo, Consolas, monospace;
}
@media (prefers-color-scheme: dark) {
  :root { --bg: #141613; --fg: #e9eae4; --muted: #a2a79c; --line: #2d312b; --card: #1b1e1a;
          --accent: #5cc496; --accent-fg: #0d140f; --warn: #f0a24e; --bad: #f07a7d; --code: #22261f; }
}
* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body { margin: 0; background: var(--bg); color: var(--fg); font: 16px/1.55 system-ui, -apple-system, "Segoe UI", sans-serif; }
a { color: var(--accent); }
.wrap { max-width: 60rem; margin: 0 auto; padding: 0 16px; }
header.site { border-bottom: 1px solid var(--line); }
header.site .wrap { display: flex; align-items: center; justify-content: space-between; gap: 1rem; min-height: 56px; flex-wrap: wrap; }
.brand { font-weight: 700; text-decoration: none; color: var(--fg); letter-spacing: -.01em; }
.brand span { color: var(--accent); }
nav a { margin-left: 1rem; color: var(--muted); text-decoration: none; }
nav a:hover { color: var(--fg); }
main { padding: 2rem 0 4rem; }
h1 { font-size: clamp(1.8rem, 5vw, 2.6rem); line-height: 1.15; letter-spacing: -.02em; margin: .5rem 0 .75rem; }
h2 { font-size: 1.35rem; margin: 2.5rem 0 .75rem; }
h3 { font-size: 1.05rem; margin: 1.5rem 0 .5rem; }
.lede { color: var(--muted); font-size: 1.15rem; max-width: 40rem; }
code, pre { font-family: var(--mono); font-size: .92em; background: var(--code); border-radius: 6px; }
code { padding: .1em .35em; }
pre { padding: .85rem 1rem; overflow-x: auto; line-height: 1.45; }
pre code { padding: 0; background: none; }
.card { background: var(--card); border: 1px solid var(--line); border-radius: var(--radius); padding: 1rem 1.1rem; }
.grid { display: grid; gap: 1rem; grid-template-columns: repeat(auto-fit, minmax(15rem, 1fr)); }
.btn, button { display: inline-block; font: inherit; font-weight: 600; padding: .55rem 1rem; border-radius: 8px; border: 1px solid var(--accent);
  background: var(--accent); color: var(--accent-fg); text-decoration: none; cursor: pointer; }
.btn.secondary, button.secondary { background: transparent; color: var(--accent); }
button.danger { background: transparent; color: var(--bad); border-color: var(--bad); }
button:disabled { opacity: .6; cursor: default; }
input, select, textarea { font: inherit; padding: .5rem .65rem; border: 1px solid var(--line); border-radius: 8px; background: var(--card); color: var(--fg); width: 100%; }
label { display: block; font-weight: 600; margin: .75rem 0 .3rem; }
.row { display: flex; gap: .5rem; flex-wrap: wrap; align-items: center; }
.muted { color: var(--muted); }
.small { font-size: .88rem; }
.err { color: var(--bad); }
.ok { color: var(--accent); }
table { width: 100%; border-collapse: collapse; }
th, td { text-align: left; padding: .5rem .4rem; border-bottom: 1px solid var(--line); vertical-align: top; }
th { font-size: .85rem; color: var(--muted); font-weight: 600; }
.table-wrap { overflow-x: auto; }
.pill { display: inline-block; font-size: .78rem; padding: .05rem .5rem; border-radius: 99px; border: 1px solid var(--line); color: var(--muted); }
.pill.on { color: var(--accent); border-color: var(--accent); }
.pill.bad { color: var(--bad); border-color: var(--bad); }
.meter { height: 8px; background: var(--line); border-radius: 99px; overflow: hidden; }
.meter > div { height: 100%; background: var(--accent); }
footer.site { border-top: 1px solid var(--line); padding: 1.5rem 0 2rem; color: var(--muted); font-size: .9rem; }
footer.site a { color: var(--muted); }
.hero-term { margin-top: 1.5rem; }
.price { font-size: 1.6rem; font-weight: 700; }
.secret { word-break: break-all; }
@media (max-width: 30rem) { nav a { margin-left: .6rem; } }