:root {
  --ink: #1f2328;
  --muted: #6a737d;
  --line: #d8dde3;
  --paper: #fbfbfa;
  --panel: #ffffff;
  --link: #0b5fa5;
  --bad: #b42318;
  --warn: #9a6700;
  --ok: #1a7f37;
  --mono: ui-monospace, "SF Mono", Menlo, Consolas, monospace;
  --sans: system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
}
@media (prefers-color-scheme: dark) {
  :root { --ink: #e6e6e3; --muted: #9aa0a6; --line: #3a3f45; --paper: #1b1d20; --panel: #23262a; --link: #6cb6ff; --bad: #ff7b72; --warn: #e3b341; --ok: #56d364; }
}
* { box-sizing: border-box; }
body { margin: 0; font: 14px/1.45 var(--sans); color: var(--ink); background: var(--paper); }
header { display: flex; align-items: center; gap: 1.5rem; padding: 0.6rem 1.2rem; border-bottom: 1px solid var(--line); background: var(--panel); }
.brand { font-weight: 700; text-decoration: none; color: var(--ink); letter-spacing: 0.02em; }
nav { display: flex; gap: 1rem; flex: 1; flex-wrap: wrap; }
nav a { color: var(--muted); text-decoration: none; }
nav a.active, nav a:hover { color: var(--ink); }
.demo { color: var(--warn); font-size: 0.85rem; }
#token { font: inherit; color: var(--muted); background: none; border: 1px solid var(--line); border-radius: 4px; padding: 0.15rem 0.6rem; cursor: pointer; }
main { padding: 1rem 1.2rem 3rem; max-width: 1600px; }
h1 { font-size: 1.3rem; margin: 0.2rem 0 0.6rem; }
h2 { font-size: 1.05rem; margin: 1.6rem 0 0.5rem; color: var(--muted); font-weight: 600; text-transform: uppercase; letter-spacing: 0.04em; }
a { color: var(--link); }
p.note { color: var(--muted); margin: 0.2rem 0 0.8rem; }
p.error { color: var(--bad); }
.kv { display: grid; grid-template-columns: max-content 1fr; gap: 0.15rem 1rem; margin: 0.5rem 0 1rem; }
.kv dt { color: var(--muted); }
.kv dd { margin: 0; }
.toolbar { display: flex; gap: 1rem; align-items: center; margin: 0.4rem 0 0.6rem; flex-wrap: wrap; color: var(--muted); }
.toolbar label { display: inline-flex; gap: 0.3rem; align-items: center; }
.toolbar select, .toolbar input { font: inherit; }
details.columns summary { cursor: pointer; }
details.columns .picks { display: flex; flex-wrap: wrap; gap: 0.2rem 1rem; padding: 0.4rem 0; }
.tablewrap { overflow-x: auto; border: 1px solid var(--line); border-radius: 6px; background: var(--panel); }
table { border-collapse: collapse; width: 100%; font-variant-numeric: tabular-nums; }
th, td { text-align: left; padding: 0.3rem 0.6rem; border-bottom: 1px solid var(--line); white-space: nowrap; vertical-align: top; }
th { position: sticky; top: 0; background: var(--panel); cursor: pointer; user-select: none; color: var(--muted); font-weight: 600; font-size: 0.85rem; }
th.sorted { color: var(--ink); }
th .arrow { display: inline-block; width: 1em; }
tr:last-child td { border-bottom: 0; }
th.num, td.num { text-align: right; }
td.mono, .mono { font-family: var(--mono); font-size: 0.92em; }
.bad { color: var(--bad); font-weight: 600; }
.warn { color: var(--warn); font-weight: 600; }
.ok { color: var(--ok); }
.muted { color: var(--muted); }
.grid { display: grid; gap: 0.35rem; margin: 0.6rem 0 1rem; }
.grid .cell { border: 1px solid var(--line); border-radius: 4px; padding: 0.3rem 0.45rem; background: var(--panel); min-width: 7rem; font-size: 0.85rem; }
.grid .cell .bay { color: var(--muted); font-size: 0.75rem; }
.grid .cell.empty { opacity: 0.55; }
.count { color: var(--muted); font-size: 0.9rem; margin-left: 0.5rem; }
.tiles { display: grid; grid-template-columns: repeat(auto-fill, minmax(11rem, 1fr)); gap: 0.6rem; margin: 0.6rem 0 1.2rem; }
.tile { border: 1px solid var(--line); border-radius: 6px; background: var(--panel); padding: 0.6rem 0.8rem; }
.tile .label { color: var(--muted); font-size: 0.8rem; text-transform: uppercase; letter-spacing: 0.04em; }
.tile .value { font-size: 1.6rem; font-weight: 600; margin-top: 0.1rem; font-variant-numeric: tabular-nums; }
.tile .value a { color: inherit; text-decoration: none; }
.tile .value a:hover { text-decoration: underline; }
.tile .sub { color: var(--muted); font-size: 0.85rem; margin-top: 0.15rem; }
.tile.bad .value { color: var(--bad); }
.tile.warn .value { color: var(--warn); }
.tokenform { margin: 2rem 0; }
.tokenform input, .tokenform button { font: inherit; padding: 0.3rem 0.5rem; }
pre { font-family: var(--mono); font-size: 0.85rem; background: var(--panel); border: 1px solid var(--line); border-radius: 6px; padding: 0.6rem; overflow-x: auto; }

/* SAS topology diagram */
.diagram { overflow-x: auto; margin: 0.6rem 0 1rem; }
.diagram pre.mermaid { margin: 0; font: inherit; }
.diagram svg { max-width: none !important; }
.diagram g.clickable { cursor: pointer; }

/* footer */
footer { max-width: 1600px; padding: 0 1.2rem 2rem; color: var(--muted); font-size: 0.85rem; }
footer hr { border: 0; border-top: 1px solid var(--line); margin: 0 0 0.6rem; }
footer p { margin: 0; }