/* Carbon Zero documentation — shared styles (brand-green) */
:root {
  --bg: #ffffff;
  --bg-soft: #f6f9f7;
  --bg-code: #0c1c14;
  --text: #1f2933;
  --text-soft: #52606d;
  --muted: #7b8794;
  --border: #e3e9e5;
  --primary: #16a34a;
  --primary-soft: #e7f6ec;
  --accent: #14532d;
  --green: #15803d; --green-bg:#e7f6ec;
  --amber: #b45309; --amber-bg:#fdf3e3;
  --red: #b91c1c; --red-bg:#fdecec;
  --radius: 10px;
  --maxw: 880px;
  --font: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  --mono: ui-monospace, SFMono-Regular, "SF Mono", Menlo, Consolas, monospace;
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: 72px; }
body {
  margin: 0; font-family: var(--font); color: var(--text);
  background: var(--bg); line-height: 1.65; font-size: 16px;
  -webkit-font-smoothing: antialiased;
}

/* Top bar */
.topbar {
  position: sticky; top: 0; z-index: 50; height: 56px;
  display: flex; align-items: center; gap: 18px;
  padding: 0 22px; background: rgba(255,255,255,.9); backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--border);
}
.topbar .brand { display:flex; align-items:center; gap:10px; font-weight:700; color:var(--accent); text-decoration:none; }
.topbar .logo { width:28px; height:28px; border-radius:7px; background:var(--accent); color:#fff;
  display:flex; align-items:center; justify-content:center; font-size:12px; font-weight:800; }
.topbar nav { margin-left:auto; display:flex; gap:6px; }
.topbar nav a { color:var(--text-soft); text-decoration:none; font-size:14px; font-weight:500;
  padding:6px 12px; border-radius:7px; }
.topbar nav a:hover { background:var(--bg-soft); color:var(--text); }
.topbar nav a.active { background:var(--primary-soft); color:var(--primary); }

/* Layout */
.layout { display:grid; grid-template-columns: 256px minmax(0,1fr); max-width:1280px; margin:0 auto; }
.toc {
  position: sticky; top: 56px; align-self:start; height: calc(100vh - 56px);
  overflow-y:auto; padding: 26px 14px 40px 22px; border-right:1px solid var(--border);
  font-size:13.5px;
}
.toc h4 { font-size:11px; text-transform:uppercase; letter-spacing:.07em; color:var(--muted);
  margin:18px 0 7px; font-weight:700; }
.toc a { display:block; color:var(--text-soft); text-decoration:none; padding:4px 10px; border-radius:6px; }
.toc a:hover { background:var(--bg-soft); color:var(--text); }
.toc a.sub { padding-left:22px; font-size:13px; color:var(--muted); }

/* Collapsible TOC injected for small screens (hidden on desktop; see @media). */
.toc-mobile { display:none; }
main { padding: 40px 48px 100px; min-width:0; }
.content { max-width: var(--maxw); }

/* Typography */
h1 { font-size:34px; line-height:1.2; margin:0 0 6px; letter-spacing:-.02em; }
h2 { font-size:24px; margin:54px 0 14px; padding-top:8px; letter-spacing:-.01em;
  border-top:1px solid var(--border); padding-top:30px; }
h2:first-of-type { border-top:none; padding-top:0; }
h3 { font-size:18.5px; margin:32px 0 10px; }
h4 { font-size:15px; margin:22px 0 8px; color:var(--accent); }
p, li { color:var(--text); }
.lead { font-size:18px; color:var(--text-soft); margin:8px 0 26px; }
a { color:var(--primary); }
hr { border:none; border-top:1px solid var(--border); margin:40px 0; }
code { font-family:var(--mono); font-size:.86em; background:var(--bg-soft);
  border:1px solid var(--border); border-radius:5px; padding:1.5px 5px; color:#0f5132; }
pre { background:var(--bg-code); color:#e2e8f0; border-radius:var(--radius); padding:18px 20px;
  overflow-x:auto; font-size:13.5px; line-height:1.6; margin:16px 0; }
pre code { background:none; border:none; padding:0; color:inherit; font-size:13.5px; }
.tok-k{color:#7dd3fc} .tok-s{color:#86efac} .tok-c{color:#64748b} .tok-n{color:#fca5a5} .tok-m{color:#fcd34d}

/* Tables */
table { border-collapse:collapse; width:100%; margin:18px 0; font-size:14.5px; }
th,td { text-align:left; padding:9px 13px; border-bottom:1px solid var(--border); vertical-align:top; }
th { background:var(--bg-soft); font-weight:600; color:var(--accent); font-size:13px;
  text-transform:uppercase; letter-spacing:.03em; }
tbody tr:hover { background:#fbfcfe; }
td code { font-size:.82em; }

/* Figures / screenshots */
figure { margin:24px 0; }
figure img { width:100%; border:1px solid var(--border); border-radius:var(--radius);
  box-shadow:0 1px 3px rgba(16,24,40,.06), 0 8px 24px rgba(16,24,40,.06); display:block; }
figcaption { font-size:13px; color:var(--muted); margin-top:9px; text-align:center; }

/* Callouts */
.note, .warn, .tip { border-radius:var(--radius); padding:14px 16px 14px 16px; margin:18px 0;
  font-size:14.5px; border:1px solid; }
.note { background:var(--primary-soft); border-color:#bfe6cb; }
.warn { background:var(--amber-bg); border-color:#f3dcae; }
.tip  { background:var(--green-bg); border-color:#bfe6cb; }
.note strong, .warn strong, .tip strong { display:block; margin-bottom:3px; }

/* Pills / method badges */
.pill { display:inline-block; font-family:var(--mono); font-size:11px; font-weight:700;
  padding:2px 7px; border-radius:5px; letter-spacing:.02em; }
.m-get{background:#e7f0ff;color:#1d4ed8} .m-post{background:#e7f6ec;color:#15803d}
.m-patch{background:#fdf3e3;color:#b45309} .m-put{background:#fdf3e3;color:#b45309}
.m-delete{background:#fdecec;color:#b91c1c}
.badge { display:inline-block; font-size:12px; font-weight:600; padding:2px 9px; border-radius:20px; }
.b-green{background:var(--green-bg);color:var(--green)} .b-amber{background:var(--amber-bg);color:var(--amber)}

/* Endpoint table tweaks */
.api td:first-child { white-space:nowrap; }
.api code { color:var(--accent); }

/* Mermaid */
.mermaid { margin:22px 0; text-align:center; background:var(--bg-soft);
  border:1px solid var(--border); border-radius:var(--radius); padding:18px; }

/* Cards (landing) */
.cards { display:grid; grid-template-columns:1fr 1fr; gap:20px; margin:32px 0; }
.card { border:1px solid var(--border); border-radius:14px; padding:26px; text-decoration:none;
  color:inherit; transition:.15s; display:block; background:var(--bg); }
.card:hover { border-color:var(--primary); box-shadow:0 8px 30px rgba(22,163,74,.12); transform:translateY(-2px); }
.card h3 { margin:0 0 6px; color:var(--accent); }
.card p { margin:0; color:var(--text-soft); font-size:15px; }
.card .ic { font-size:26px; }

footer { border-top:1px solid var(--border); margin-top:60px; padding-top:22px;
  color:var(--muted); font-size:13px; }

/* Floating "back to contents" pill — always-accessible jump to the TOC, mirroring
   the per-page Contents footer link in the PDF. Revealed after scrolling (JS adds
   .show); links to #top. */
.backtotoc { position:fixed; right:20px; bottom:20px; z-index:60; display:inline-flex;
  align-items:center; gap:6px; padding:9px 15px; border-radius:999px; background:var(--primary);
  color:#fff; font-size:13px; font-weight:600; text-decoration:none;
  box-shadow:0 6px 20px rgba(22,163,74,.35); opacity:0; transform:translateY(8px);
  pointer-events:none; transition:opacity .2s ease, transform .2s ease; }
.backtotoc.show { opacity:1; transform:none; pointer-events:auto; }
.backtotoc:hover { filter:brightness(1.08); color:#fff; }

@media (max-width: 980px) {
  .layout { grid-template-columns:1fr; }
  .toc { display:none; }
  main { padding:28px 20px 80px; }
  .cards { grid-template-columns:1fr; }
  /* Wide tables/diagrams must scroll within their own box, not stretch the page. */
  table { display:block; overflow-x:auto; -webkit-overflow-scrolling:touch; max-width:100%; }
  .mermaid { overflow-x:auto; }
  .mermaid svg { max-width:none; }
  /* On-this-page collapsible TOC (cloned from the sidebar by a small script). */
  .toc-mobile { display:block; margin:0 0 26px; border:1px solid var(--border);
    border-radius:var(--radius); background:var(--bg-soft); }
  .toc-mobile > summary { cursor:pointer; padding:13px 16px; font-size:12px; font-weight:700;
    text-transform:uppercase; letter-spacing:.06em; color:var(--muted); list-style:none;
    display:flex; align-items:center; justify-content:space-between; }
  .toc-mobile > summary::-webkit-details-marker { display:none; }
  .toc-mobile > summary::after { content:'\25BE'; font-size:13px; }
  .toc-mobile[open] > summary::after { content:'\25B4'; }
  .toc-mobile nav { padding:4px 8px 10px; display:flex; flex-direction:column; }
  .toc-mobile nav a { display:block; color:var(--text-soft); text-decoration:none;
    padding:8px 12px; border-radius:6px; font-size:14.5px; }
  .toc-mobile nav a:hover, .toc-mobile nav a:active { background:var(--primary-soft); color:var(--primary); }
  .toc-mobile nav a.sub { padding-left:24px; font-size:13.5px; color:var(--muted); }
}