:root {
  color-scheme: light;
  --page: #f9f9f7; --surface: #fcfcfb;
  --ink: #0b0b0b; --ink2: #52514e; --muted: #898781;
  --grid: #e1e0d9; --axis: #c3c2b7; --border: rgba(11,11,11,0.10);
  --series-1: #2a78d6; --series-2: #eb6834; --series-3: #1baf7a;
  --good: #006300; --bad: #d03b3b; --warn: #8a5a00;
  --accent: #184f95; --accent-ink: #ffffff; --accent-wash: #cde2fb;
  --ok-bg: #e7f4e7; --err-bg: #fbe9e9; --warn-bg: #fdf3dc;
}
@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    color-scheme: dark;
    --page: #0d0d0d; --surface: #1a1a19;
    --ink: #ffffff; --ink2: #c3c2b7; --muted: #898781;
    --grid: #2c2c2a; --axis: #383835; --border: rgba(255,255,255,0.10);
    --series-1: #3987e5; --series-2: #d95926; --series-3: #199e70;
    --good: #0ca30c; --bad: #e66767; --warn: #fab219;
    --accent: #6da7ec; --accent-ink: #0b0b0b; --accent-wash: #0d366b;
    --ok-bg: #12301a; --err-bg: #3a1717; --warn-bg: #3a2e0e;
  }
}

* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body { margin: 0; background: var(--page); color: var(--ink); font-family: 'Inter', system-ui, -apple-system, 'Segoe UI', sans-serif; font-size: 15px; line-height: 1.5; }
h1, h2, h3 { font-family: 'Playfair Display', Georgia, serif; font-weight: 600; letter-spacing: -0.01em; margin: 0; }
h1 { font-size: 30px; line-height: 1.15; }
h2 { font-size: 21px; }
h3 { font-size: 17px; }
a { color: var(--accent); text-decoration: none; }
a:hover { text-decoration: underline; }
.muted { color: var(--muted); }
.sr { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); }
.wrap { max-width: 1180px; margin: 0 auto; padding: 0 20px; }

/* header */
.top { background: var(--surface); border-bottom: 1px solid var(--border); position: sticky; top: 0; z-index: 20; }
.top .wrap { display: flex; align-items: center; gap: 22px; height: 58px; }
.brand { font-family: 'Playfair Display', Georgia, serif; font-weight: 700; font-size: 20px; color: var(--ink); }
.brand:hover { text-decoration: none; }
.nav { display: flex; gap: 4px; flex: 1; overflow-x: auto; }
.nav a { color: var(--ink2); padding: 7px 12px; border-radius: 11px; font-weight: 500; white-space: nowrap; }
.nav a:hover { background: var(--page); text-decoration: none; }
.nav a.on { color: var(--ink); background: var(--page); }
.who { color: var(--muted); font-size: 13px; white-space: nowrap; }

main { padding: 28px 0 70px; }
.pagehead { display: flex; align-items: flex-end; justify-content: space-between; gap: 16px; flex-wrap: wrap; margin-bottom: 22px; }
.pagehead .sub { color: var(--ink2); margin-top: 4px; }

/* buttons: 11px radius */
.btn { display: inline-flex; align-items: center; gap: 8px; font: inherit; font-weight: 500; font-size: 14px; padding: 9px 16px; border-radius: 11px; border: 1px solid var(--border); background: var(--surface); color: var(--ink); cursor: pointer; }
.btn:hover { background: var(--page); text-decoration: none; }
.btn.primary { background: var(--accent); color: var(--accent-ink); border-color: transparent; }
.btn.primary:hover { filter: brightness(1.08); }
.btn.danger { color: var(--bad); }
.btn.small { padding: 5px 11px; font-size: 13px; }
.btn[disabled] { opacity: .55; cursor: wait; }

/* cards */
.card { background: var(--surface); border: 1px solid var(--border); border-radius: 14px; padding: 20px; }
.card + .card { margin-top: 16px; }
.card h2 { margin-bottom: 4px; }
.card .sub { color: var(--ink2); font-size: 14px; margin-bottom: 14px; }
.grid2 { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 16px; }
.grid3 { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 16px; }
.grid4 { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 14px; }
.grid2 > .card, .grid3 > .card { margin-top: 0; }
@media (max-width: 900px) { .grid4 { grid-template-columns: repeat(2, minmax(0, 1fr)); } .grid3 { grid-template-columns: 1fr; } }
@media (max-width: 700px) { .grid2 { grid-template-columns: 1fr; } .grid4 { grid-template-columns: 1fr 1fr; } h1 { font-size: 25px; } }

/* stat tiles */
.tile { background: var(--surface); border: 1px solid var(--border); border-radius: 14px; padding: 16px 18px; }
.tile .tl { color: var(--ink2); font-size: 13px; }
.tile .tv { font-size: 30px; font-weight: 600; margin: 2px 0; }
.tile .td { font-size: 13px; }
.tile .ts { margin-top: 8px; }
.hero { background: var(--surface); border: 1px solid var(--border); border-radius: 14px; padding: 22px 24px; }
.hero .tl { color: var(--ink2); font-size: 14px; }
.hero .hv { font-size: 52px; font-weight: 600; line-height: 1.1; margin: 4px 0; }
.delta { font-weight: 500; white-space: nowrap; }
.delta.good { color: var(--good); }
.delta.bad { color: var(--bad); }
.delta.flat { color: var(--muted); }

/* charts */
.chartbox { position: relative; }
svg.chart { width: 100%; height: auto; display: block; overflow: visible; }
svg.chart .grid { stroke: var(--grid); stroke-width: 1; }
svg.chart .grid.base { stroke: var(--axis); }
svg.chart .axis { fill: var(--muted); font-size: 11px; font-family: inherit; }
svg.chart .xh { stroke: var(--axis); stroke-width: 1; }
svg.spark { width: 96px; height: 28px; display: block; }
.tip { position: absolute; pointer-events: none; background: var(--surface); border: 1px solid var(--border); box-shadow: 0 6px 20px rgba(0,0,0,.12); border-radius: 10px; padding: 7px 10px; font-size: 13px; white-space: nowrap; display: none; z-index: 5; transform: translate(-50%, -110%); }
.tip b { font-weight: 600; }
.legend { display: flex; gap: 14px; font-size: 13px; color: var(--ink2); margin-bottom: 8px; }
.legend i { display: inline-block; width: 14px; height: 3px; border-radius: 2px; margin-right: 6px; vertical-align: middle; }

ul.bars { list-style: none; margin: 0; padding: 0; }
ul.bars li { display: grid; grid-template-columns: minmax(80px, 38%) 1fr 56px; gap: 10px; align-items: center; padding: 5px 0; font-size: 14px; }
ul.bars .bl { overflow: hidden; text-overflow: ellipsis; white-space: nowrap; color: var(--ink2); }
ul.bars .bt { height: 10px; background: var(--page); border-radius: 5px; overflow: hidden; }
ul.bars .bt i { display: block; height: 100%; border-radius: 0 4px 4px 0; }
ul.bars .bv { text-align: right; font-variant-numeric: tabular-nums; }

/* tables */
.tscroll { overflow-x: auto; position: relative; } /* position: keeps the screen-reader-only text inside the scroller */
table.data { width: 100%; border-collapse: collapse; font-size: 14px; }
table.data th { text-align: left; font-weight: 500; color: var(--muted); font-size: 12.5px; padding: 8px 10px; border-bottom: 1px solid var(--grid); white-space: nowrap; }
table.data td { padding: 10px; border-bottom: 1px solid var(--grid); vertical-align: middle; }
table.data tr:last-child td { border-bottom: 0; }
table.data td.num, table.data th.num { text-align: right; font-variant-numeric: tabular-nums; }
table.data td .cellsub { display: block; font-size: 12px; }
details.tableview { margin-top: 12px; font-size: 13px; color: var(--ink2); }
details.tableview summary { cursor: pointer; }

/* status */
.dot { display: inline-block; width: 9px; height: 9px; border-radius: 50%; margin-right: 6px; }
.dot.ok { background: #0ca30c; } .dot.warn { background: #fab219; } .dot.bad { background: #d03b3b; } .dot.off { background: var(--axis); }
.pill { display: inline-block; font-size: 12px; padding: 2px 9px; border-radius: 99px; background: var(--page); border: 1px solid var(--border); color: var(--ink2); }

/* forms */
label { display: block; font-weight: 500; font-size: 14px; margin: 14px 0 5px; }
label .hint { font-weight: 400; color: var(--muted); }
input[type=text], input[type=email], input[type=password], input[type=url], select, textarea {
  width: 100%; font: inherit; padding: 10px 12px; border-radius: 11px; border: 1px solid var(--border); background: var(--page); color: var(--ink);
}
input:focus, select:focus, textarea:focus { outline: 2px solid var(--accent); outline-offset: 1px; }
.help { font-size: 13px; color: var(--muted); margin-top: 5px; }
.formrow { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; }
@media (max-width: 700px) { .formrow { grid-template-columns: 1fr; } }
.actions { display: flex; gap: 10px; margin-top: 22px; flex-wrap: wrap; }

.flash { padding: 11px 14px; border-radius: 11px; margin-bottom: 18px; border: 1px solid var(--border); }
.flash.ok { background: var(--ok-bg); } .flash.err { background: var(--err-bg); } .flash.warn { background: var(--warn-bg); }
.demo-banner { background: var(--warn-bg); border: 1px solid var(--border); border-radius: 11px; padding: 9px 14px; margin-bottom: 16px; font-size: 14px; }
.attn { list-style: none; padding: 0; margin: 0; }
.attn li { display: flex; gap: 10px; padding: 8px 0; border-bottom: 1px solid var(--grid); font-size: 14px; }
.attn li:last-child { border-bottom: 0; }
.attn li .dot { flex: none; margin: 7px 0 0; }
.errbox { background: var(--err-bg); border-radius: 11px; padding: 10px 13px; font-size: 14px; }
.empty { text-align: center; padding: 44px 20px; }
.empty h2 { margin-bottom: 8px; }
code, .mono { font-family: ui-monospace, SFMono-Regular, Menlo, monospace; font-size: 13px; background: var(--page); padding: 2px 6px; border-radius: 6px; border: 1px solid var(--border); word-break: break-all; }
.authbox { max-width: 420px; margin: 70px auto; }
.authbox h1 { margin-bottom: 6px; }
ol.steps { padding-left: 20px; } ol.steps li { margin: 8px 0; }
.sk { display: inline-block; width: 52px; height: 12px; border-radius: 6px; background: var(--grid); animation: pulse 1.2s ease-in-out infinite; }
@keyframes pulse { 50% { opacity: .45; } }
@media (max-width: 700px) {
  .top .wrap { flex-wrap: wrap; height: auto; padding-top: 10px; padding-bottom: 8px; gap: 6px 12px; }
  .brand { flex: 1; }
  .who { display: none; }
  .nav { order: 3; flex-basis: 100%; margin: 0 -8px; }
  .wrap { padding: 0 16px; }
  .hero .hv { font-size: 42px; }
  .hero { grid-column: span 2; }
}
@media print { .top, .actions, .btn { display: none !important; } body { background: #fff; } }

pre.snippet { background: var(--page); border: 1px solid var(--border); border-radius: 11px; padding: 11px 13px; font-size: 13px; margin: 0; overflow-x: auto; white-space: pre; font-family: ui-monospace, Menlo, Consolas, monospace; color: var(--ink); }