/* bb provider plugin docs — mobile-first, no build step */
:root {
  --bg: #ffffff;
  --fg: #1b1d21;
  --muted: #5d616a;
  --accent: #0b5fff;
  --accent-2: #6f3ff5;
  --code-bg: #f3f4f6;
  --code-fg: #1f2328;
  --border: #e2e4e8;
  --nav-bg: rgba(255, 255, 255, 0.94);
  --callout: #eef4ff;
  --callout-border: #c7d7ff;
  --warn: #fff7e6;
  --warn-border: #f5d89a;
  --ok: #eefbf2;
  --ok-border: #b7e4c5;
  --node: #f7f8fa;
  --max: 46rem;
}
@media (prefers-color-scheme: dark) {
  :root {
    --bg: #0e1014;
    --fg: #e7e9ee;
    --muted: #a2a7b1;
    --accent: #86a8ff;
    --accent-2: #b8a1ff;
    --code-bg: #171a20;
    --code-fg: #e3e6ec;
    --border: #262a33;
    --nav-bg: rgba(14, 16, 20, 0.94);
    --callout: #141c2f;
    --callout-border: #27406f;
    --warn: #2a2210;
    --warn-border: #6a5320;
    --ok: #10241a;
    --ok-border: #245a3a;
    --node: #151821;
  }
}

html { font-size: 17px; -webkit-text-size-adjust: 100%; scroll-padding-top: 4.5rem; }
body {
  margin: 0;
  font-family: system-ui, -apple-system, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  line-height: 1.65;
  color: var(--fg);
  background: var(--bg);
}
a { color: var(--accent); text-decoration-thickness: 1px; text-underline-offset: 2px; }
a:hover { color: var(--accent-2); }
.skip { position: absolute; left: -999px; top: 0; }
.skip:focus { left: 0.5rem; top: 0.5rem; background: var(--bg); padding: 0.5rem; z-index: 100; }

/* sticky top nav */
.top {
  position: sticky; top: 0; z-index: 50;
  display: flex; flex-wrap: wrap; align-items: center; gap: 0.5rem 1rem;
  padding: 0.6rem 1rem;
  background: var(--nav-bg);
  backdrop-filter: blur(8px); -webkit-backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--border);
}
.brand { font-weight: 700; text-decoration: none; color: var(--fg); margin-right: auto; }
.brand span { color: var(--muted); font-weight: 500; }
.menu-btn {
  font: inherit; font-size: 0.95rem; padding: 0.35rem 0.7rem;
  border: 1px solid var(--border); border-radius: 0.5rem;
  background: transparent; color: var(--fg); cursor: pointer;
}
.site-nav { display: none; flex-basis: 100%; flex-direction: column; gap: 0.1rem; padding-top: 0.4rem; }
.site-nav.open { display: flex; }
.site-nav a { padding: 0.45rem 0.25rem; text-decoration: none; color: var(--fg); border-radius: 0.4rem; }
.site-nav a[aria-current="page"] { color: var(--accent); font-weight: 600; }
.site-nav a:hover { background: var(--code-bg); }
@media (min-width: 760px) {
  .menu-btn { display: none; }
  .site-nav { display: flex; flex-basis: auto; flex-direction: row; gap: 0.15rem; padding-top: 0; overflow-x: auto; }
  .site-nav a { padding: 0.3rem 0.6rem; white-space: nowrap; }
}

/* page */
.page { max-width: var(--max); margin: 0 auto; padding: 1.25rem 1rem 3rem; }
h1 { font-size: 1.9rem; line-height: 1.2; margin: 0.6rem 0 0.6rem; letter-spacing: -0.01em; }
h2 { font-size: 1.4rem; line-height: 1.3; margin: 2.4rem 0 0.7rem; padding-top: 0.2rem; border-top: 1px solid var(--border); }
h3 { font-size: 1.12rem; margin: 1.7rem 0 0.5rem; }
h4 { font-size: 1rem; margin: 1.3rem 0 0.4rem; }
h2, h3, h4 { scroll-margin-top: 4.5rem; position: relative; }
.anchor { margin-left: 0.4rem; color: var(--muted); text-decoration: none; font-weight: 400; opacity: 0.55; }
.anchor:hover { opacity: 1; color: var(--accent); }
.lead { font-size: 1.1rem; color: var(--muted); margin-top: 0; }
p, ul, ol, dl { margin: 0 0 1rem; }
li { margin: 0.25rem 0; }
ul ul, ol ul { margin-bottom: 0.25rem; }
dl dt { font-weight: 600; margin-top: 0.8rem; }
dl dd { margin: 0.15rem 0 0 0; padding-left: 0.9rem; border-left: 2px solid var(--border); }
hr { border: 0; border-top: 1px solid var(--border); margin: 2rem 0; }
small, .muted { color: var(--muted); }

/* on this page */
.toc { background: var(--code-bg); border: 1px solid var(--border); border-radius: 0.6rem; padding: 0.8rem 1rem; margin: 1.2rem 0 1.6rem; }
.toc h2 { font-size: 0.85rem; text-transform: uppercase; letter-spacing: 0.06em; color: var(--muted); margin: 0 0 0.4rem; border: 0; padding: 0; }
.toc ol { margin: 0; padding-left: 1.2rem; columns: 1; }
.toc li { margin: 0.15rem 0; }
@media (min-width: 600px) { .toc ol { columns: 2; column-gap: 2rem; } }

/* code */
code, pre, kbd { font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, "Liberation Mono", monospace; }
code { font-size: 0.9em; background: var(--code-bg); color: var(--code-fg); padding: 0.1em 0.35em; border-radius: 0.3em; overflow-wrap: anywhere; }
pre {
  background: var(--code-bg); color: var(--code-fg);
  border: 1px solid var(--border); border-radius: 0.6rem;
  padding: 0.85rem 1rem; margin: 0.8rem 0 1.2rem;
  overflow-x: auto; -webkit-overflow-scrolling: touch;
  font-size: 0.86rem; line-height: 1.5;
  tab-size: 2;
}
pre code { background: transparent; padding: 0; font-size: inherit; white-space: pre; overflow-wrap: normal; }
pre.wrap code { white-space: pre-wrap; overflow-wrap: anywhere; }
.filename { display: block; font-size: 0.78rem; color: var(--muted); margin: 0.6rem 0 -0.5rem; font-family: ui-monospace, Menlo, monospace; }

/* tables */
.table-wrap { overflow-x: auto; -webkit-overflow-scrolling: touch; margin: 0.8rem 0 1.4rem; border: 1px solid var(--border); border-radius: 0.6rem; }
table { border-collapse: collapse; width: 100%; min-width: 34rem; font-size: 0.92rem; }
.table-wrap.narrow table { min-width: 0; }
th, td { text-align: left; vertical-align: top; padding: 0.5rem 0.65rem; border-bottom: 1px solid var(--border); }
th { background: var(--code-bg); font-weight: 600; white-space: nowrap; }
tr:last-child td { border-bottom: 0; }
td code { white-space: nowrap; }
td code.wrapcode, td.wrap code { white-space: normal; }

/* callouts */
.callout { border: 1px solid var(--callout-border); background: var(--callout); border-radius: 0.6rem; padding: 0.75rem 1rem; margin: 1rem 0 1.2rem; }
.callout.warn { border-color: var(--warn-border); background: var(--warn); }
.callout.ok { border-color: var(--ok-border); background: var(--ok); }
.callout p:last-child, .callout ul:last-child { margin-bottom: 0; }
.callout strong:first-child { display: inline-block; margin-bottom: 0.15rem; }
.tag { display: inline-block; font-size: 0.72rem; font-weight: 600; letter-spacing: 0.04em; text-transform: uppercase; padding: 0.08rem 0.4rem; border-radius: 0.35rem; border: 1px solid var(--border); color: var(--muted); vertical-align: middle; }
.tag.exp { color: var(--accent-2); border-color: var(--accent-2); }

/* topology diagram */
.topology { display: flex; flex-direction: column; align-items: stretch; gap: 0.35rem; margin: 1rem 0 1.4rem; }
.topology .node { border: 1px solid var(--border); background: var(--node); border-radius: 0.7rem; padding: 0.7rem 0.9rem; flex: 1 1 0; }
.topology .node h3 { margin: 0 0 0.3rem; font-size: 1rem; }
.topology .node p { margin: 0; font-size: 0.88rem; color: var(--muted); }
.topology .node ul { margin: 0.3rem 0 0; padding-left: 1.1rem; font-size: 0.86rem; }
.topology .node li { margin: 0.1rem 0; }
.topology .node.plugin { border-color: var(--accent-2); }
.topology .link { text-align: center; font-size: 0.8rem; color: var(--muted); padding: 0.1rem 0; }
.topology .link::before { content: "\2195"; display: block; font-size: 1.2rem; line-height: 1; color: var(--accent); }
@media (min-width: 720px) {
  .topology { flex-direction: row; align-items: stretch; }
  .topology .link { display: flex; flex-direction: column; justify-content: center; min-width: 6.5rem; }
  .topology .link::before { content: "\2194"; }
}
.flow { display: flex; flex-wrap: wrap; gap: 0.4rem; align-items: center; margin: 0.8rem 0 1.2rem; }
.flow span { border: 1px solid var(--border); background: var(--node); border-radius: 0.5rem; padding: 0.25rem 0.6rem; font-size: 0.88rem; }
.flow span.plugin { border-color: var(--accent-2); }
.flow i { color: var(--muted); font-style: normal; }

/* pager + footer */
.pager { display: flex; justify-content: space-between; gap: 1rem; margin-top: 3rem; padding-top: 1rem; border-top: 1px solid var(--border); }
.pager a { text-decoration: none; max-width: 48%; }
.pager a small { display: block; color: var(--muted); }
.pager .next { text-align: right; margin-left: auto; }
.site-footer { max-width: var(--max); margin: 0 auto; padding: 0 1rem 2.5rem; font-size: 0.82rem; color: var(--muted); }
.site-footer a { color: inherit; }