:root {
  color-scheme: light;
  --bg: #f8fafc;
  --panel: #ffffff;
  --ink: #0f172a;
  --muted: #475569;
  --line: #dbe3ef;
  --brand: #2563eb;
  --code: #0b1220;
  --warn: #b45309;
  --warn-bg: #fef3c7;
  --ok: #15803d;
  --ok-bg: #dcfce7;
  --err: #b91c1c;
  --err-bg: #fee2e2;
}
* { box-sizing: border-box; }
body { margin: 0; font-family: ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif; background: var(--bg); color: var(--ink); line-height: 1.6; }
header.doc-header { background: #0b1220; color: #e2e8f0; padding: 22px 32px; border-bottom: 1px solid #1e293b; }
header.doc-header h1 { margin: 0 0 4px; font-size: 22px; }
header.doc-header p { margin: 0; color: #94a3b8; font-size: 14px; }
header.doc-header nav { margin-top: 10px; display: flex; flex-wrap: wrap; gap: 14px; }
header.doc-header nav a { color: #93c5fd; text-decoration: none; font-size: 13px; }
header.doc-header nav a:hover { text-decoration: underline; }
main { max-width: 960px; margin: 0 auto; padding: 34px 24px 56px; }
section { background: var(--panel); border: 1px solid var(--line); border-radius: 8px; padding: 24px; margin: 18px 0; }
h2 { margin: 0 0 12px; font-size: 20px; }
h3 { margin: 22px 0 8px; font-size: 16px; }
p, li { color: var(--muted); }
a { color: var(--brand); }
code { background: #eaf0f8; color: #0f172a; border-radius: 4px; padding: 2px 5px; font-size: 0.92em; font-family: ui-monospace, SFMono-Regular, Menlo, monospace; }
pre { overflow-x: auto; background: var(--code); color: #dbeafe; padding: 16px; border-radius: 8px; font-size: 13px; line-height: 1.5; }
pre code { background: transparent; color: inherit; padding: 0; }
.lead { font-size: 17px; color: #334155; }
.callout { border-left: 4px solid var(--brand); padding: 12px 14px; background: #eff6ff; color: #1e3a8a; border-radius: 6px; margin: 12px 0; }
.callout.warn { border-color: var(--warn); background: var(--warn-bg); color: #78350f; }
.callout.ok { border-color: var(--ok); background: var(--ok-bg); color: #14532d; }
.callout.err { border-color: var(--err); background: var(--err-bg); color: #7f1d1d; }
table { width: 100%; border-collapse: collapse; margin: 12px 0; font-size: 14px; }
th, td { text-align: left; padding: 10px 12px; border-bottom: 1px solid var(--line); vertical-align: top; }
th { background: #f1f5f9; color: #0f172a; font-weight: 600; }
td code { white-space: nowrap; }
.badge { display: inline-block; padding: 2px 8px; border-radius: 999px; font-size: 12px; font-weight: 600; }
.badge.stable { background: var(--ok-bg); color: var(--ok); }
.badge.beta { background: var(--warn-bg); color: var(--warn); }
.badge.deprecated { background: var(--err-bg); color: var(--err); }
@media (max-width: 640px) {
  header.doc-header { padding: 18px 20px; }
  main { padding: 20px 16px 40px; }
  section { padding: 18px; }
  table { display: block; overflow-x: auto; }
}

/* --- Iteration B: accessibility + shared UI --- */
.skip-link {
  position: absolute; left: -9999px; top: 8px; background: #0b1220; color: #fff;
  padding: 8px 12px; border-radius: 6px; z-index: 1000; font-weight: 600;
}
.skip-link:focus { left: 12px; outline: 2px solid #93c5fd; outline-offset: 2px; }
a:focus-visible, button:focus-visible, [role="tab"]:focus-visible, .search-fab:focus-visible {
  outline: 2px solid #2563eb; outline-offset: 2px; border-radius: 4px;
}
header.doc-header nav a[aria-current="page"] { color: #fbbf24; text-decoration: underline; }
.search-fab {
  position: fixed; right: 20px; bottom: 20px; z-index: 900;
  background: #0b1220; color: #e2e8f0; border: 1px solid #334155;
  border-radius: 999px; padding: 10px 16px; font-size: 13px; font-weight: 600;
  cursor: pointer; box-shadow: 0 6px 20px rgba(15,23,42,.25);
  display: inline-flex; align-items: center; gap: 8px; text-decoration: none;
}
.search-fab kbd {
  background: #1e293b; color: #94a3b8; padding: 1px 6px; border-radius: 4px;
  font-size: 11px; font-family: ui-monospace, monospace;
}
.search-fab:hover { background: #1e293b; }

/* Tabs (code examples, try-it) */
.tabs { display: flex; flex-wrap: wrap; gap: 4px; margin: 12px 0 0; border-bottom: 1px solid var(--line); }
[role="tab"] {
  background: transparent; border: 0; padding: 8px 14px; font-size: 13px;
  color: var(--muted); cursor: pointer; border-bottom: 2px solid transparent;
  font-weight: 500;
}
[role="tab"][aria-selected="true"] { color: var(--brand); border-bottom-color: var(--brand); }
[role="tabpanel"] { padding-top: 12px; }
[role="tabpanel"][hidden] { display: none; }

/* Status page */
.status-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(240px, 1fr)); gap: 12px; }
.status-card { border: 1px solid var(--line); border-radius: 8px; padding: 16px; background: #fff; }
.status-card .name { font-weight: 600; font-size: 14px; }
.status-card .meta { font-size: 12px; color: var(--muted); margin-top: 4px; }
.status-dot { display: inline-block; width: 10px; height: 10px; border-radius: 50%; margin-right: 8px; vertical-align: middle; }
.status-dot.ok { background: #16a34a; }
.status-dot.degraded { background: #f59e0b; }
.status-dot.down { background: #dc2626; }
.status-dot.pending { background: #94a3b8; }

/* Search page */
.search-input {
  width: 100%; padding: 12px 14px; font-size: 15px; border: 1px solid var(--line);
  border-radius: 8px; background: #fff; color: var(--ink);
}
.search-hit { padding: 12px 0; border-bottom: 1px solid var(--line); }
.search-hit a { font-weight: 600; text-decoration: none; }
.search-hit .path { font-size: 12px; color: var(--muted); font-family: ui-monospace, monospace; }
.search-hit .excerpt { color: #334155; font-size: 14px; margin-top: 4px; }
mark { background: #fde68a; color: inherit; padding: 0 2px; border-radius: 2px; }

/* Ensure tap targets meet 44px on mobile for nav links */
@media (max-width: 640px) {
  header.doc-header nav a { padding: 6px 0; min-height: 32px; display: inline-flex; align-items: center; }
  .search-fab { right: 12px; bottom: 12px; padding: 12px 14px; min-height: 44px; }
}