:root {
  color-scheme: light;
  --page: #f6f6f3;
  --surface: #fcfcfb;
  --surface-2: #f0efec;
  --ink: #0b0b0b;
  --ink-2: #52514e;
  --muted: #898781;
  --grid: #e1e0d9;
  --axis: #c3c2b7;
  --border: rgba(11, 11, 11, 0.1);
  --accent: #2a78d6;
  --accent-ink: #1c5cab;
  --accent-wash: #e6f0fc;
  --s1: #2a78d6; --s2: #eb6834; --s3: #1baf7a; --s4: #eda100; --s5: #e87ba4; --s6: #008300; --s7: #6250d6; --s8: #e34948;
  --good: #0ca30c; --good-ink: #006300;
  --warning: #fab219; --serious: #ec835a; --critical: #d03b3b;
  --flag-wash: rgba(208, 59, 59, 0.11);
  --shadow: 0 1px 2px rgba(0, 0, 0, 0.04), 0 2px 8px rgba(0, 0, 0, 0.04);
  --radius: 10px;
  --font: system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
}
@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    color-scheme: dark;
    --page: #0d0d0d; --surface: #1a1a19; --surface-2: #232321;
    --ink: #f0efec; --ink-2: #c3c2b7; --muted: #898781; --grid: #2c2c2a; --axis: #383835;
    --border: rgba(255, 255, 255, 0.1);
    --accent: #3987e5; --accent-ink: #86b6ef; --accent-wash: rgba(57, 135, 229, 0.14);
    --s1: #3987e5; --s2: #d95926; --s3: #199e70; --s4: #c98500; --s5: #d55181; --s6: #008300; --s7: #9085e9; --s8: #e66767;
    --good-ink: #0ca30c; --flag-wash: rgba(230, 103, 103, 0.16);
    --shadow: none;
  }
}
:root[data-theme="dark"] {
  color-scheme: dark;
  --page: #0d0d0d; --surface: #1a1a19; --surface-2: #232321;
  --ink: #f0efec; --ink-2: #c3c2b7; --muted: #898781; --grid: #2c2c2a; --axis: #383835;
  --border: rgba(255, 255, 255, 0.1);
  --accent: #3987e5; --accent-ink: #86b6ef; --accent-wash: rgba(57, 135, 229, 0.14);
  --s1: #3987e5; --s2: #d95926; --s3: #199e70; --s4: #c98500; --s5: #d55181; --s6: #008300; --s7: #9085e9; --s8: #e66767;
  --good-ink: #0ca30c; --flag-wash: rgba(230, 103, 103, 0.16);
  --shadow: none;
}

* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body { margin: 0; background: var(--page); color: var(--ink); font: 15px/1.5 var(--font); }
a { color: var(--accent-ink); text-decoration: none; }
a:hover { text-decoration: underline; }
h1, h2, h3, h4 { line-height: 1.25; margin: 0; }
h1 { font-size: 26px; font-weight: 650; letter-spacing: -0.01em; }
h2 { font-size: 18px; font-weight: 620; }
h3 { font-size: 15px; font-weight: 620; }
p { margin: 0; }
button, select, input { font: inherit; color: inherit; }
.num { font-variant-numeric: tabular-nums; }
.muted { color: var(--muted); }
.secondary { color: var(--ink-2); }
.small { font-size: 13px; }
[hidden] { display: none !important; }

/* ---------- top bar ---------- */
.topbar { position: sticky; top: var(--demo-bar-h, 0px); z-index: 20; background: var(--surface); border-bottom: 1px solid var(--border); }
.topbar-inner { max-width: 1240px; margin: 0 auto; padding: 10px 20px; display: flex; align-items: center; gap: 24px; }
.brand { display: flex; align-items: center; gap: 10px; color: var(--ink); text-decoration: none !important; }
.brand svg { width: 30px; height: 30px; flex: none; }
.brand svg rect { fill: var(--accent); }
.brand svg path { stroke: #fff; stroke-width: 3; fill: none; stroke-linecap: round; }
.brand span { display: flex; flex-direction: column; line-height: 1.15; }
.brand strong { font-size: 15px; }
.brand small { font-size: 12px; color: var(--muted); }
.nav { display: flex; gap: 4px; flex: 1; flex-wrap: wrap; }
.nav a { padding: 6px 10px; border-radius: 7px; color: var(--ink-2); font-size: 14px; text-decoration: none; }
.nav a:hover { background: var(--surface-2); color: var(--ink); }
.nav a.active { background: var(--accent-wash); color: var(--accent-ink); font-weight: 560; }
.topbar-tools { display: flex; align-items: center; gap: 10px; }
.profile-select { display: flex; align-items: center; gap: 8px; font-size: 13px; color: var(--muted); }
select, input[type="text"], input[type="number"] {
  background: var(--surface); border: 1px solid var(--border); border-radius: 7px; padding: 6px 8px; min-height: 34px;
}
select:focus-visible, input:focus-visible, button:focus-visible, a:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; }
.icon-btn { width: 34px; height: 34px; border-radius: 8px; border: 1px solid var(--border); background: var(--surface); cursor: pointer; display: grid; place-items: center; }
.icon-btn svg { width: 18px; height: 18px; fill: var(--ink-2); }

.banner { max-width: 1240px; margin: 12px auto 0; padding: 10px 14px; border-radius: 8px; background: var(--accent-wash); color: var(--ink); font-size: 14px; }

.page { max-width: 1240px; margin: 0 auto; padding: 24px 20px 48px; outline: none; }
.footer { max-width: 1240px; margin: 0 auto; padding: 0 20px 32px; color: var(--muted); font-size: 12px; }

/* ---------- layout primitives ---------- */
.stack > * + * { margin-top: 16px; }
.row { display: flex; gap: 16px; align-items: center; flex-wrap: wrap; }
.spread { display: flex; justify-content: space-between; align-items: flex-end; gap: 16px; flex-wrap: wrap; }
.grid { display: grid; gap: 16px; }
.grid > *, .eq-layout > * { min-width: 0; }
.grid-4 { grid-template-columns: repeat(4, minmax(0, 1fr)); }
.grid-3 { grid-template-columns: repeat(3, minmax(0, 1fr)); }
.grid-2 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
.card { background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius); box-shadow: var(--shadow); }
.card-pad { padding: 18px 20px; }
.card-head { padding: 14px 20px; border-bottom: 1px solid var(--border); display: flex; justify-content: space-between; align-items: center; gap: 12px; flex-wrap: wrap; }
.section-title { margin: 32px 0 12px; display: flex; justify-content: space-between; align-items: baseline; gap: 12px; flex-wrap: wrap; }
.eyebrow { font-size: 12px; text-transform: uppercase; letter-spacing: 0.06em; color: var(--muted); font-weight: 600; }
.page-head { display: flex; justify-content: space-between; align-items: flex-end; gap: 20px; flex-wrap: wrap; margin-bottom: 20px; }
.page-head p { color: var(--ink-2); margin-top: 6px; max-width: 760px; }
.crumbs { font-size: 13px; color: var(--muted); margin-bottom: 6px; }

/* ---------- stat tiles ---------- */
.stat { padding: 16px 18px; }
.stat .label { font-size: 13px; color: var(--ink-2); }
.stat .value { font-size: 30px; font-weight: 650; letter-spacing: -0.02em; margin-top: 4px; line-height: 1.1; }
.stat .sub { font-size: 12px; color: var(--muted); margin-top: 4px; }

/* ---------- severity / status ---------- */
.pill { display: inline-flex; align-items: center; gap: 6px; padding: 2px 9px 2px 7px; border-radius: 999px; font-size: 12px; font-weight: 600; border: 1px solid var(--border); background: var(--surface); color: var(--ink); white-space: nowrap; }
.pill .dot { width: 8px; height: 8px; border-radius: 50%; flex: none; }
.pill svg { width: 12px; height: 12px; flex: none; }
.sev-High .dot { background: var(--critical); }
.sev-Medium .dot { background: var(--serious); }
.sev-Low .dot { background: var(--warning); }
.sev-ok .dot { background: var(--good); }
.chip { display: inline-block; padding: 1px 8px; border-radius: 6px; background: var(--surface-2); font-size: 12px; color: var(--ink-2); white-space: nowrap; }

/* ---------- tables ---------- */
.table-wrap { overflow-x: auto; }
table { width: 100%; border-collapse: collapse; font-size: 14px; }
th { text-align: left; font-weight: 600; font-size: 12px; color: var(--muted); text-transform: uppercase; letter-spacing: 0.04em; padding: 10px 14px; border-bottom: 1px solid var(--border); white-space: nowrap; }
td { padding: 11px 14px; border-bottom: 1px solid var(--border); vertical-align: top; }
tr:last-child td { border-bottom: none; }
td.r, th.r { text-align: right; }
tbody tr.link { cursor: pointer; }
tbody tr.link:hover { background: var(--surface-2); }

/* ---------- equipment page ---------- */
.eq-layout { display: grid; grid-template-columns: 340px minmax(0, 1fr); gap: 16px; align-items: start; }
.finding-list { display: flex; flex-direction: column; gap: 8px; }
.finding-item { text-align: left; width: 100%; padding: 12px 14px; border-radius: var(--radius); border: 1px solid var(--border); background: var(--surface); cursor: pointer; display: grid; gap: 6px; }
.finding-item:hover { border-color: var(--axis); }
.finding-item.active { border-color: var(--accent); box-shadow: 0 0 0 1px var(--accent); }
.finding-item .t { font-weight: 600; font-size: 14px; }
.finding-item .m { display: flex; gap: 8px; flex-wrap: wrap; align-items: center; font-size: 12px; color: var(--ink-2); }
.kv { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 12px 20px; }
.kv .k { font-size: 12px; color: var(--muted); }
.kv .v { font-size: 18px; font-weight: 620; }
.cause { display: grid; grid-template-columns: minmax(0, 1fr) 120px 40px; gap: 10px; align-items: center; font-size: 14px; padding: 4px 0; }
.bar-track { height: 8px; border-radius: 4px; background: var(--surface-2); overflow: hidden; }
.bar-fill { height: 100%; background: var(--accent); border-radius: 4px; }
.note { padding: 12px 14px; border-radius: 8px; background: var(--surface-2); font-size: 14px; color: var(--ink-2); }
.note strong { color: var(--ink); }
.callout { border-left: 3px solid var(--accent); padding: 10px 14px; background: var(--accent-wash); border-radius: 0 8px 8px 0; font-size: 14px; }
details.reveal summary { cursor: pointer; color: var(--accent-ink); font-size: 14px; }
details.reveal[open] summary { margin-bottom: 8px; }
.healthy { display: flex; gap: 14px; align-items: flex-start; }
.healthy svg { width: 28px; height: 28px; flex: none; }

/* ---------- segmented buttons ---------- */
.seg { display: inline-flex; border: 1px solid var(--border); border-radius: 8px; overflow: hidden; background: var(--surface); }
.seg button { border: 0; background: none; padding: 5px 11px; font-size: 13px; cursor: pointer; color: var(--ink-2); border-right: 1px solid var(--border); }
.seg button:last-child { border-right: 0; }
.seg button[aria-pressed="true"] { background: var(--accent-wash); color: var(--accent-ink); font-weight: 600; }

.btn { display: inline-flex; align-items: center; gap: 8px; padding: 8px 14px; border-radius: 8px; border: 1px solid var(--border); background: var(--surface); cursor: pointer; font-size: 14px; font-weight: 560; color: var(--ink); text-decoration: none !important; }
.btn:hover { background: var(--surface-2); }
.btn.primary { background: var(--accent); border-color: var(--accent); color: #fff; }
.btn.primary:hover { filter: brightness(1.06); }
.btn:disabled { opacity: 0.5; cursor: default; }

/* ---------- charts ---------- */
.chart { position: relative; user-select: none; }
.chart svg { display: block; width: 100%; overflow: visible; }
.chart .grid line { stroke: var(--grid); stroke-width: 1; }
.chart .axis text, .chart .ylab { fill: var(--muted); font-size: 11px; font-variant-numeric: tabular-nums; }
.chart .baseline { stroke: var(--axis); }
.chart .band { fill: var(--flag-wash); }
.chart .band-strip { fill: var(--critical); }
.chart .xhair { stroke: var(--ink-2); stroke-width: 1; }
.chart .series { fill: none; stroke-width: 2; stroke-linejoin: round; stroke-linecap: round; }
.chart .series.ref { stroke-dasharray: 5 4; stroke-width: 1.5; }
.chart .endlabel { font-size: 11px; fill: var(--ink-2); }
.chart.loading { opacity: 0.5; transition: opacity 0.15s; }
.legend { display: flex; flex-wrap: wrap; gap: 4px 14px; font-size: 12px; color: var(--ink-2); margin: 0 0 6px; }
.legend span { display: inline-flex; align-items: center; gap: 6px; }
.legend i { width: 16px; height: 0; border-top: 2px solid; display: inline-block; }
.legend i.ref { border-top-style: dashed; }
.legend i.flag { height: 10px; border: 0; background: var(--flag-wash); box-shadow: inset 0 2px 0 var(--critical); }
.panel-title { font-size: 12px; color: var(--muted); font-weight: 600; margin: 10px 0 2px; }
.tooltip { position: fixed; z-index: 50; pointer-events: none; background: var(--surface); border: 1px solid var(--border); border-radius: 8px; box-shadow: 0 6px 24px rgba(0, 0, 0, 0.14); padding: 8px 10px; font-size: 12px; min-width: 170px; }
.tooltip .tt-time { color: var(--muted); margin-bottom: 4px; }
.tooltip .tt-row { display: grid; grid-template-columns: 14px minmax(0, 1fr) auto; gap: 6px; align-items: center; }
.tooltip .tt-row i { border-top: 2px solid; width: 12px; }
.tooltip .tt-row b { font-variant-numeric: tabular-nums; }
.tooltip .tt-flag { margin-top: 4px; color: var(--critical); font-weight: 600; }

.hbar { display: grid; grid-template-columns: 80px minmax(0, 1fr) 76px; align-items: center; gap: 10px; font-size: 13px; padding: 5px 0; }
.hbar .track { height: 16px; position: relative; }
.hbar .fill { position: absolute; left: 0; top: 0; bottom: 0; border-radius: 0 4px 4px 0; background: var(--s1); min-width: 2px; }

/* ---------- upload ---------- */
.drop { border: 2px dashed var(--axis); border-radius: var(--radius); padding: 36px; text-align: center; background: var(--surface); cursor: pointer; }
.drop.over { border-color: var(--accent); background: var(--accent-wash); }
.form-grid { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 12px 16px; }
.field { display: flex; flex-direction: column; gap: 4px; font-size: 13px; color: var(--ink-2); }
.conf { font-size: 12px; font-weight: 600; font-variant-numeric: tabular-nums; }
.conf.hi { color: var(--good-ink); } .conf.md { color: var(--ink-2); } .conf.lo { color: var(--critical); }
.error { color: var(--critical); font-size: 14px; }

/* ---------- report ---------- */
.report { background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius); padding: 44px 52px; max-width: 980px; margin: 0 auto; }
.report h1 { font-size: 30px; }
.report h2 { margin: 36px 0 12px; padding-bottom: 6px; border-bottom: 1px solid var(--border); }
.report .rf { padding: 16px 0; border-bottom: 1px solid var(--border); break-inside: avoid; }
.report .watermark { display: inline-block; padding: 3px 10px; border: 1px solid var(--critical); color: var(--critical); border-radius: 6px; font-size: 12px; font-weight: 700; letter-spacing: 0.05em; }
.signoff { display: grid; grid-template-columns: 1fr 1fr; gap: 32px; margin-top: 28px; }
.signoff div { border-top: 1px solid var(--ink-2); padding-top: 6px; font-size: 13px; color: var(--ink-2); }

.rule-card h3 { margin-bottom: 4px; }
.rule-card dl { display: grid; grid-template-columns: 130px minmax(0, 1fr); gap: 6px 12px; font-size: 14px; margin: 12px 0 0; }
.rule-card dt { color: var(--muted); }
.rule-card dd { margin: 0; }

.check { color: var(--good-ink); font-weight: 700; }
.cross { color: var(--critical); font-weight: 700; }

@media (max-width: 980px) {
  .eq-layout { grid-template-columns: minmax(0, 1fr); }
  .grid-4 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .grid-3, .grid-2, #ov-grid { grid-template-columns: minmax(0, 1fr) !important; }
  .form-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .kv { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}
@media (max-width: 720px) {
  .topbar-inner { flex-wrap: wrap; gap: 10px; padding: 10px 16px; }
  .nav { order: 3; width: 100%; overflow-x: auto; flex-wrap: nowrap; }
  .nav a { white-space: nowrap; }
  .topbar-tools { margin-left: auto; }
  .grid-4 { grid-template-columns: minmax(0, 1fr); }
  .stat .value { font-size: 26px; }
  .page { padding: 18px 16px 40px; }
  .footer { padding: 0 16px 28px; }
  .report { padding: 24px 18px; }
  .profile-select span { display: none; }
  .cause { grid-template-columns: minmax(0, 1fr) 70px 36px; }
  h1 { font-size: 22px; }
}

@media print {
  .topbar, .footer, .banner, .no-print { display: none !important; }
  body { background: #fff; }
  .page { padding: 0; max-width: none; }
  .report { border: 0; padding: 0; max-width: none; }
}