* { box-sizing: border-box; }
html, body { margin: 0; background: var(--bg); color: var(--ink); font-family: var(--font); font-size: var(--fs-md); line-height: 1.55; -webkit-font-smoothing: antialiased; }
a { color: inherit; text-decoration: none; }
button, input, select { font: inherit; color: inherit; }
:focus-visible { outline: 2px solid var(--brand); outline-offset: 2px; border-radius: 6px; }
.sr-only { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; }
.num { font-variant-numeric: tabular-nums; }

/* demo banner — persistent, calm, not a big burgundy block */
.demo-banner { display: flex; gap: var(--space-2); align-items: center; justify-content: center; padding: 6px var(--space-4);
  background: var(--warning-soft); color: var(--warning); border-bottom: 1px solid rgba(154, 74, 92, .25); font-size: var(--fs-sm); font-weight: 500; }
.demo-banner .dot { width: 8px; height: 8px; border-radius: 50%; background: var(--warning); }
.demo-banner.prod .dot { background: var(--positive); }

/* top navigation */
.topbar { position: sticky; top: 0; z-index: 20; height: var(--nav-h); background: var(--nav-bg); color: var(--nav-fg);
  border-bottom: 1px solid rgba(0, 0, 0, .2); }
.topbar .inner { max-width: 1320px; margin: 0 auto; height: 100%; display: flex; align-items: center; gap: var(--space-5); padding: 0 var(--space-5); }
.brand { display: flex; align-items: center; gap: 10px; font-weight: 600; font-size: 17px; letter-spacing: -.01em; white-space: nowrap; }
.brand .logo { width: 26px; height: 28px; border-radius: 7px; background: var(--surface); object-fit: contain; padding: 1px; }
.nav { display: flex; gap: 2px; flex: 1; overflow-x: auto; scrollbar-width: none; }
.nav a { padding: 7px 12px; border-radius: var(--radius-sm); color: var(--nav-muted); font-weight: 500; white-space: nowrap; font-size: var(--fs-md); }
.nav a:hover { background: var(--nav-active); color: var(--nav-fg); }
.nav a[aria-current="page"] { color: var(--nav-fg); background: var(--nav-active); box-shadow: inset 0 -2px 0 var(--brand); }
.top-actions { display: flex; align-items: center; gap: var(--space-3); }
.icon-btn { position: relative; width: 36px; height: 36px; display: grid; place-items: center; border-radius: 50%; border: 1px solid rgba(255, 255, 255, .18); background: transparent; color: var(--nav-fg); cursor: pointer; }
.icon-btn .badge { position: absolute; top: -3px; inset-inline-start: -3px; min-width: 18px; height: 18px; padding: 0 4px; border-radius: 9px; background: var(--brand); color: #fff; font: 600 11px/18px 'Inter'; }
.user-chip { display: flex; align-items: center; gap: 8px; padding: 4px 6px 4px 12px; border: 1px solid rgba(255, 255, 255, .18); border-radius: var(--radius-pill); font-size: var(--fs-sm); color: var(--nav-fg); }
.user-chip .avatar { width: 26px; height: 26px; border-radius: 50%; background: var(--nav-active); display: grid; place-items: center; font-weight: 600; color: var(--nav-fg); }
.user-chip button { border: 0; background: none; color: var(--nav-muted); cursor: pointer; font-size: var(--fs-xs); }

main { max-width: 1320px; margin: 0 auto; padding: var(--space-5) var(--space-5) var(--space-7); }

/* page header */
.page-head { display: flex; justify-content: space-between; align-items: flex-end; gap: var(--space-4); flex-wrap: wrap; margin-bottom: var(--space-5); }
.page-head h1 { margin: 0; font-size: var(--fs-2xl); font-weight: 700; letter-spacing: -.01em; }
.page-head h1::before { content: ''; display: inline-block; width: 3px; height: 22px; background: var(--brand); border-radius: 2px; margin-inline-end: 10px; vertical-align: -3px; }
.page-head p { margin: 4px 0 0; color: var(--ink-2); }
.controls { display: flex; gap: var(--space-2); align-items: center; flex-wrap: wrap; }
.control { display: flex; align-items: center; gap: 6px; height: 36px; padding: 0 12px; border: 1px solid var(--hairline); border-radius: var(--radius-md); background: var(--surface); font-size: var(--fs-sm); color: var(--ink-2); }
.control select { border: 0; background: transparent; color: var(--ink); font-weight: 500; cursor: pointer; }
.fresh { display: inline-flex; align-items: center; gap: 6px; font-size: var(--fs-sm); color: var(--ink-2); }
.fresh .d { width: 8px; height: 8px; border-radius: 50%; background: var(--ink-3); }
.fresh.ok .d { background: var(--positive); } .fresh.stale .d { background: var(--warning); }

/* grid + cards */
.grid { display: grid; gap: var(--space-4); }
/* grid items may shrink below their content width (long rows wrap instead of widening the page — Sprint 6 RC sweep) */
.grid > * { min-width: 0; }
.g-5 { grid-template-columns: repeat(5, minmax(0, 1fr)); }
.g-4 { grid-template-columns: repeat(4, minmax(0, 1fr)); }
.g-3 { grid-template-columns: repeat(3, minmax(0, 1fr)); }
.g-2 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
.g-side { grid-template-columns: 380px minmax(0, 1fr); }
.nowrap { white-space: nowrap; }
.section { margin-top: var(--space-5); }
.card { background: var(--surface); border: 1px solid var(--hairline); border-radius: var(--radius-card); padding: var(--space-4) var(--space-5); box-shadow: var(--shadow-card); min-width: 0; }
.card h2, .card h3 { margin: 0; font-size: var(--fs-lg); font-weight: 600; }
.card-head { display: flex; justify-content: space-between; align-items: center; gap: var(--space-2); margin-bottom: var(--space-3); }
.card-sub { color: var(--ink-2); font-size: var(--fs-xs); }
.muted { color: var(--ink-2); }
.caption { margin-top: var(--space-2); font-size: var(--fs-xs); color: var(--ink-3); }

/* KPI tile */
.kpi { cursor: pointer; text-align: start; width: 100%; font: inherit; background: var(--surface); border: 1px solid var(--hairline); border-radius: var(--radius-card); padding: var(--space-4); transition: border-color .15s; }
.kpi { box-shadow: var(--shadow-card); }
.kpi:hover { border-color: var(--hairline-strong); }
.kpi .label { display: flex; justify-content: space-between; align-items: center; gap: 6px; color: var(--ink-2); font-size: var(--fs-sm); font-weight: 500; }
.kpi .value { margin-top: 6px; font-size: 24px; font-weight: 650; letter-spacing: -.01em; }
.kpi .value.na { font-size: 18px; color: var(--ink-3); font-weight: 500; }
.kpi .foot { margin-top: 6px; display: flex; gap: 8px; align-items: center; flex-wrap: wrap; font-size: var(--fs-xs); color: var(--ink-3); }
.delta { font-weight: 600; font-size: var(--fs-sm); }
.delta.pos { color: var(--positive); } .delta.neg { color: var(--critical); } .delta.flat { color: var(--ink-2); }

/* chips */
.chip { display: inline-flex; align-items: center; gap: 4px; height: 20px; padding: 0 8px; border-radius: var(--radius-pill); font-size: 11px; font-weight: 500; border: 1px solid var(--hairline); color: var(--ink-2); background: var(--surface); white-space: nowrap; }
.chip.demo { color: var(--warning); border-color: rgba(154, 74, 92, .3); background: var(--warning-soft); }
.chip.t-verified, .chip.t-reconciled { color: var(--ink-2); }
.chip.t-unavailable { color: var(--ink-3); border-style: dashed; }
.chip.t-stale { color: var(--warning); border-color: rgba(154, 74, 92, .3); }
.chip.t-disputed { color: var(--critical); border-color: rgba(128, 0, 32, .25); }
.chip.t-estimated, .chip.t-hypothetical { color: var(--brand); border-color: rgba(128, 0, 32, .22); }
.chip.ok { color: var(--positive); border-color: rgba(22, 128, 60, .25); background: var(--positive-soft); }
.chip.off { color: var(--ink-3); border-style: dashed; }
.sev { display: inline-block; width: 8px; height: 8px; border-radius: 50%; margin-inline-end: 6px; }
.sev.critical { background: var(--critical); } .sev.high { background: var(--warning); } .sev.medium { background: var(--hairline-strong); } .sev.low { background: var(--surface-3); } .sev.info { background: var(--surface); border: 1px solid var(--hairline-strong); }

/* lists */
.list { list-style: none; margin: 0; padding: 0; }
.list li { display: flex; flex-wrap: wrap; justify-content: space-between; align-items: center; gap: var(--space-3); overflow-wrap: anywhere; padding: 10px 0; border-top: 1px solid var(--hairline); font-size: var(--fs-sm); }
.list li:first-child { border-top: 0; }
.list .meta { color: var(--ink-3); font-size: var(--fs-xs); }
.pill-val { font-weight: 600; font-size: var(--fs-xs); padding: 2px 8px; border-radius: var(--radius-pill); background: var(--surface-2); white-space: nowrap; }

/* tables */
.table-wrap { overflow-x: auto; }
table { width: 100%; border-collapse: collapse; font-size: var(--fs-sm); }
th { text-align: start; font-weight: 500; color: var(--ink-2); font-size: var(--fs-xs); padding: 8px 10px; border-bottom: 1px solid var(--hairline); white-space: nowrap; }
td { padding: 9px 10px; border-bottom: 1px solid var(--hairline); vertical-align: middle; }
tr:last-child td { border-bottom: 0; }
tr.sel td { background: var(--brand-soft); }
tbody tr.click { cursor: pointer; } tbody tr.click:hover td { background: var(--surface-2); }

/* empty / unavailable state */
.empty { border: 1px dashed var(--hairline-strong); border-radius: var(--radius-card); padding: var(--space-5); color: var(--ink-2); background: var(--surface-2); }
.empty strong { display: block; color: var(--ink); margin-bottom: 4px; }

/* executive explanation */
.explain { display: flex; gap: var(--space-4); align-items: flex-start; }
.explain .tag { flex: none; font: 600 11px 'Inter'; color: var(--brand); border: 1px solid rgba(128, 0, 32, .22); border-radius: var(--radius-sm); padding: 2px 6px; margin-top: 2px; }
.explain ul { margin: 0; padding-inline-start: 18px; }
.explain li { margin: 2px 0; }
.linkish { color: var(--brand); cursor: pointer; border: 0; background: none; padding: 0; font: inherit; font-size: var(--fs-xs); text-decoration: underline; text-underline-offset: 3px; }

/* buttons */
.btn { height: 36px; padding: 0 16px; border-radius: var(--radius-md); border: 1px solid var(--hairline); background: var(--surface); cursor: pointer; font-weight: 500; font-size: var(--fs-sm); }
.btn:hover { background: var(--surface-2); }
.btn.primary { background: var(--brand); border-color: var(--brand); color: #fff; }
.btn.primary:hover { background: var(--brand-hover); }
.btn.sm { height: 28px; padding: 0 10px; font-size: var(--fs-xs); }
.btn:disabled { opacity: .5; cursor: not-allowed; }
.seg { display: inline-flex; border: 1px solid var(--hairline); border-radius: var(--radius-md); padding: 2px; background: var(--surface-2); }
.seg button { border: 0; background: transparent; padding: 5px 14px; border-radius: 8px; cursor: pointer; font-size: var(--fs-sm); color: var(--ink-2); }
.seg button[aria-pressed="true"] { background: var(--surface); color: var(--ink); box-shadow: 0 1px 2px rgba(0,0,0,.06); font-weight: 600; }
.filters { display: flex; gap: 6px; flex-wrap: wrap; }
.filters button { border: 1px solid var(--hairline); background: var(--surface); border-radius: var(--radius-pill); padding: 4px 12px; cursor: pointer; font-size: var(--fs-sm); color: var(--ink-2); }
.filters button[aria-pressed="true"] { border-color: var(--brand); color: var(--brand); background: var(--brand-soft); }
input[type="text"], input[type="password"], input[type="search"] { height: 38px; border: 1px solid var(--hairline); border-radius: var(--radius-md); padding: 0 12px; background: var(--surface); width: 100%; }

/* sliders */
.slider { margin-bottom: var(--space-4); }
.slider .row { display: flex; justify-content: space-between; align-items: center; font-size: var(--fs-sm); margin-bottom: 4px; }
.slider .val { font-weight: 600; color: var(--brand); border: 1px solid rgba(128, 0, 32, .22); border-radius: var(--radius-sm); padding: 1px 8px; font-size: var(--fs-sm); }
input[type="range"] { width: 100%; accent-color: var(--brand); direction: ltr; }
.slider .ends { direction: ltr; }
.slider .ends { display: flex; justify-content: space-between; font-size: 11px; color: var(--ink-3); }

/* drawer */
.scrim { position: fixed; inset: 0; background: rgba(23,23,25,.18); z-index: 40; }
.drawer { position: fixed; top: 0; bottom: 0; inset-inline-start: 0; width: min(460px, 100vw); background: var(--surface); z-index: 41; border-inline-end: 1px solid var(--hairline);
  box-shadow: 0 0 24px rgba(0,0,0,.08); padding: var(--space-5); overflow-y: auto; }
.drawer h2 { margin: 0 0 4px; font-size: var(--fs-xl); }
.drawer dl { display: grid; grid-template-columns: 110px 1fr; gap: 8px 12px; font-size: var(--fs-sm); margin: var(--space-4) 0; }
.drawer dt { color: var(--ink-2); } .drawer dd { margin: 0; }
.chain { list-style: none; padding: 0; margin: 0; counter-reset: c; font-size: var(--fs-sm); }
.chain li { padding: 6px 0 6px 0; border-inline-start: 2px solid var(--hairline); padding-inline-start: 12px; }
.close { position: absolute; top: 16px; inset-inline-end: 16px; }

/* charts */
.chart { width: 100%; height: auto; display: block; direction: ltr; }
.chart text { font-family: var(--font); fill: var(--ink-2); font-size: 11px; }
.legend { display: flex; gap: var(--space-4); font-size: var(--fs-xs); color: var(--ink-2); }
.legend i { display: inline-block; width: 10px; height: 10px; border-radius: 3px; margin-inline-end: 6px; vertical-align: -1px; }

/* login */
.login-wrap { min-height: calc(100vh - 34px); display: grid; place-items: center; background: var(--bg); padding: var(--space-5); }
.login-card { width: min(400px, 100%); background: var(--surface); border: 1px solid var(--hairline); border-radius: var(--radius-card); box-shadow: var(--shadow-card); padding: var(--space-6); }
.login-card h1 { margin: var(--space-4) 0 4px; font-size: var(--fs-xl); }
.login-card label { display: block; margin: var(--space-4) 0 6px; font-size: var(--fs-sm); color: var(--ink-2); }
.login-card .btn { width: 100%; margin-top: var(--space-5); height: 42px; }
.err { color: var(--critical); font-size: var(--fs-sm); margin-top: var(--space-3); min-height: 20px; }

.bottom-nav { display: none; }

@media (max-width: 1100px) { .g-5 { grid-template-columns: repeat(3, minmax(0,1fr)); } .g-side { grid-template-columns: 1fr; } }
@media (max-width: 760px) {
  .topbar .nav { display: none; }
  .topbar .inner { padding: 0 var(--space-4); gap: var(--space-3); }
  .user-chip .name { display: none; }
  main { padding: var(--space-4) var(--space-4) 90px; }
  .g-5, .g-4, .g-3, .g-2 { grid-template-columns: 1fr; }
  .g-5.kpis, .g-4.kpis { grid-template-columns: repeat(2, minmax(0,1fr)); }
  .page-head h1 { font-size: 22px; }
  .bottom-nav { display: flex; position: fixed; bottom: 0; left: 0; right: 0; z-index: 30; background: var(--nav-bg); border-top: 1px solid rgba(0, 0, 0, .2);
    justify-content: space-around; padding: 6px 4px calc(6px + env(safe-area-inset-bottom)); }
  .bottom-nav a { flex: 1; text-align: center; font-size: 11px; color: var(--nav-muted); padding: 4px 2px; border-radius: var(--radius-sm); min-height: 44px; display: flex; align-items: center; justify-content: center; }
  .bottom-nav a[aria-current="page"] { color: var(--nav-fg); background: var(--nav-active); font-weight: 600; }
  .kpi .value { font-size: 18px; }
  .kpi { padding: var(--space-3); }
  .demo-banner { font-size: 12px; }
}
.chart text.t-strong { fill: var(--ink); font-weight: 600; }
.chart text.t-ink { fill: var(--ink); font-size: 12px; }
.kpi-like { font-size: 24px; font-weight: 650; margin-top: 4px; }
.legend i.lg-brand { background: var(--brand); } .legend i.lg-grey { background: var(--chart-compare); } .legend i.lg-band { background: rgba(128,0,32,.12); }
.alert-meta { font-size: var(--fs-sm); }
details summary { cursor: pointer; color: var(--ink-2); font-size: var(--fs-sm); }
.controls input[type="text"] { width: auto; flex: 1; }

/* ---- Data Trust pipeline */
.stale-banner { border: 1px solid rgba(154, 74, 92, .3); background: var(--warning-soft); color: var(--warning); border-radius: var(--radius-card); padding: var(--space-2) var(--space-3); margin: var(--space-3) 0; font-size: var(--fs-sm); }
.btn-row { display: flex; flex-wrap: wrap; gap: var(--space-2); margin-bottom: var(--space-3); }
.trace { margin-top: var(--space-3); }
.trace-node { border-inline-start: 2px solid var(--hairline); padding-inline-start: var(--space-3); margin-top: var(--space-2); }
.trace-node[data-depth="0"] { border-inline-start-color: var(--brand); }
#run-out:not(:empty) { border-top: 1px solid var(--hairline); padding-top: var(--space-3); margin-top: var(--space-3); }
.kpi-like.hash { font-size: 15px; overflow-wrap: anywhere; word-break: break-all; }
/* ---- Sprint 4: Insights workspaces */
.g-side-r { grid-template-columns: minmax(0, 1fr) 380px; }
.table-tools { display: flex; gap: var(--space-2); align-items: center; justify-content: space-between; margin-bottom: var(--space-2); }
.table-tools input[type=search] { flex: 1; max-width: 320px; }
.seg { display: inline-flex; gap: 4px; }
.btn.on { background: var(--brand-soft); border-color: rgba(128, 0, 32, .3); color: var(--brand); }
.legend i.lg-line { background: var(--ink-2); height: 2px; }
.kpi.static { cursor: default; }
.src-badges { flex-wrap: wrap; gap: 6px; }
.list.tree li.lvl-2 { padding-inline-start: 18px; } .list.tree li.lvl-3 { padding-inline-start: 36px; } .list.tree li.lvl-4 { padding-inline-start: 54px; }
.list.tree li.sel, .list.tree li.sel a { color: var(--brand); font-weight: 600; }
table.heat td.h1 { background: rgba(128,0,32,.08); } table.heat td.h2 { background: rgba(128,0,32,.16); } table.heat td.h3 { background: rgba(128,0,32,.26); } table.heat td.h4 { background: rgba(128,0,32,.38); } table.heat td.h5 { background: rgba(128,0,32,.5); color: #fff; }
.list.exceptions li > span:first-child { display: block; }
@media (max-width: 1100px) { .g-side-r { grid-template-columns: 1fr; } .g-4 { grid-template-columns: repeat(2, minmax(0, 1fr)); } }
@media (max-width: 760px) {
  .bottom-nav { overflow-x: auto; justify-content: flex-start; scrollbar-width: none; }
  .bottom-nav a { flex: 0 0 auto; min-width: 64px; }
  .table-tools { flex-wrap: wrap; } .table-tools input[type=search] { max-width: none; }
}
.table-wrap.tall { max-height: 560px; overflow-y: auto; }
.table-wrap.tall thead th { position: sticky; top: 0; background: var(--surface); z-index: 1; }
@media (max-width: 1500px) { .user-chip .name { display: none; } }

/* ---- Sprint 5: intelligence workspaces */
.subnav { display: flex; gap: 4px; flex-wrap: wrap; margin: 4px 0 14px; border-bottom: 1px solid var(--hairline); padding-bottom: 6px; }
.subnav a { padding: 5px 12px; border-radius: var(--radius-pill); color: var(--ink-2); font-size: var(--fs-sm); }
.subnav a[aria-current="page"] { color: var(--brand); background: var(--brand-soft); font-weight: 600; }
.chain.flow li { margin-bottom: 4px; }
.chain.flow strong { color: var(--ink); margin-inline-end: 6px; }
.ask-answer .answer { font-size: var(--fs-md); line-height: 1.8; margin: 6px 0 10px; }
.ask-answer.refused { border-inline-start: 3px solid var(--brand); }
#ask-q { flex: 1; min-width: 240px; }
input.invalid { border-color: var(--brand); }
.close-note { min-width: 160px; }
.outcome-form input[type="number"] { width: 90px; }
.investigation .inv-body { padding-top: 6px; }
@media print {
  .topbar, .bottom-nav, .subnav, .btn, .stale-banner, .controls button { display: none !important; }
  body { background: #fff; } .card { box-shadow: none; break-inside: avoid; }
}