:root {
  --bg: #fbfbfd; --fg: #1d1d1f; --muted: #6e6e73; --line: #e4e4e7;
  --card: #ffffff; --accent: #2563eb; --code-bg: #f3f4f6; --code-fg: #1d1d1f;
}
@media (prefers-color-scheme: dark) {
  :root {
    --bg: #0f1115; --fg: #e6e6e9; --muted: #9a9aa3; --line: #25272e;
    --card: #15171d; --accent: #6ea8fe; --code-bg: #1c1f27; --code-fg: #e6e6e9;
  }
}
* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body {
  margin: 0; background: var(--bg); color: var(--fg);
  font: 16px/1.6 -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
}
.wrap { width: 100%; max-width: 920px; margin: 0 auto; padding: 3rem clamp(1.25rem, 5vw, 4rem) 5rem; }
a { color: var(--accent); text-decoration: none; }
a:hover { text-decoration: underline; }
.topnav { margin-bottom: 2.5rem; font-size: .9rem; }
.topnav a { color: var(--muted); }
header.hero { margin-bottom: 3rem; }
h1 { font-size: 2.3rem; line-height: 1.1; margin: 0 0 .6rem; letter-spacing: -0.02em; word-break: break-word; }
h1 .full { font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace; font-size: 1rem; color: var(--muted); font-weight: 400; }
.badge { display: inline-block; font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace; font-size: .8rem; color: var(--accent); border: 1px solid var(--line); border-radius: 999px; padding: .1rem .6rem; vertical-align: middle; margin-left: .5rem; }
.tagline { font-size: 1.15rem; color: var(--muted); margin: 0; max-width: 42rem; }
section { margin-top: 2.75rem; }
h2 { font-size: 1.3rem; margin: 0 0 .9rem; letter-spacing: -0.01em; }
p { max-width: 46rem; }
ul.features { list-style: none; padding: 0; margin: 0; display: grid; gap: .6rem; }
ul.features li { padding-left: 1.4rem; position: relative; color: var(--fg); max-width: 46rem; }
ul.features li::before { content: "▸"; position: absolute; left: 0; color: var(--accent); }
dl.usage { margin: 0; display: grid; gap: .75rem; }
dl.usage dt { font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace; font-size: .9rem; font-weight: 600; overflow-wrap: anywhere; }
dl.usage dd { margin: .15rem 0 0; color: var(--muted); }
.usage-note { color: var(--muted); font-size: .92rem; margin-top: 1rem; }
.example { margin-bottom: 1.5rem; }
.example h3 { font-size: 1rem; margin: 0 0 .5rem; font-weight: 600; }
.example .note { color: var(--muted); font-size: .9rem; margin: .5rem 0 0; }
pre { background: var(--code-bg); color: var(--code-fg); border: 1px solid var(--line); border-radius: 10px; padding: .9rem 1.1rem; overflow-x: auto; margin: 0; }
pre code { font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace; font-size: .85rem; line-height: 1.5; }
code { font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace; }
p code, li code, dd code { background: var(--code-bg); padding: .1rem .35rem; border-radius: 5px; font-size: .85em; }
.download { background: var(--card); border: 1px solid var(--line); border-radius: 12px; padding: 1.25rem 1.4rem; }
.download .row { display: flex; flex-wrap: wrap; align-items: center; gap: 1rem; }
.btn { display: inline-block; background: var(--accent); color: #fff; padding: .55rem 1.1rem; border-radius: 9px; font-weight: 600; font-size: .95rem; }
.btn:hover { text-decoration: none; opacity: .92; }
.dl-meta { color: var(--muted); font-size: .88rem; }
.dl-meta code { font-size: .8rem; word-break: break-all; }
.dl-sub { margin-top: 1rem; color: var(--muted); font-size: .92rem; }
.status { color: var(--muted); font-size: .92rem; }
footer { margin-top: 4rem; padding-top: 1.5rem; border-top: 1px solid var(--line); color: var(--muted); font-size: .85rem; }
/* index */
.grid { display: grid; gap: 1rem; grid-template-columns: repeat(auto-fit, minmax(260px, 1fr)); }
.card { display: block; padding: 1.1rem 1.2rem; background: var(--card); border: 1px solid var(--line); border-radius: 12px; color: inherit; transition: border-color .15s ease, transform .15s ease; }
.card:hover { border-color: var(--accent); transform: translateY(-2px); text-decoration: none; }
.card .name { display: flex; flex-wrap: wrap; align-items: baseline; gap: .25rem .5rem; margin-bottom: .3rem; }
.card .short { font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace; font-weight: 700; font-size: 1.05rem; min-width: 0; overflow-wrap: anywhere; }
.card .full { font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace; font-size: .78rem; color: var(--muted); min-width: 0; overflow-wrap: anywhere; }
.card .desc { margin: 0; color: var(--muted); font-size: .95rem; }
.group-intro { color: var(--muted); margin: 0 0 1.4rem; }

/* rendered user-guide markdown */
.doc { max-width: 46rem; }
.doc h2 { margin: 2.5rem 0 .8rem; }
.doc h3 { font-size: 1.05rem; margin: 1.8rem 0 .5rem; }
.doc h4 { font-size: .95rem; margin: 1.4rem 0 .4rem; }
.doc p { margin: .9rem 0; }
.doc ul, .doc ol { padding-left: 1.4rem; margin: .9rem 0; }
.doc li { margin: .3rem 0; }
.doc blockquote { margin: 1.1rem 0; padding: .1rem 1rem; border-left: 3px solid var(--line); color: var(--muted); }
.doc pre { margin: 1rem 0; }
.doc table { border-collapse: collapse; margin: 1.1rem 0; font-size: .92rem; width: 100%; }
.doc th, .doc td { border: 1px solid var(--line); padding: .45rem .7rem; text-align: left; vertical-align: top; }
.doc th { background: var(--code-bg); font-weight: 600; }
.doc hr { border: 0; border-top: 1px solid var(--line); margin: 2rem 0; }