:root {
  color-scheme: light;
  --page: #f9f9f7;
  --surface-1: #fcfcfb;
  --surface-2: #f3f2ee;
  --text-primary: #0b0b0b;
  --text-secondary: #52514e;
  --text-muted: #6b6a65;
  --axis-muted: #898781;
  --grid: #e1e0d9;
  --baseline: #c3c2b7;
  --border: rgba(11, 11, 11, 0.10);
  --series-1: #2a78d6;
  --series-2: #eb6834;
  --series-muted: #b9b7ad;
  --good: #0ca30c;
  --good-text: #006300;
  --critical: #d03b3b;
  --critical-text: #b42323;
  --accent: #2a78d6;
  --focus: #2a78d6;
  --badge-sourced-bg: #dcefdc; --badge-sourced-fg: #1f5c1f;
  --badge-derived-bg: #dde8f7; --badge-derived-fg: #1c4f8a;
  --badge-estimate-bg: #f6ead0; --badge-estimate-fg: #7a5200;
  --radius: 10px;
  --font: system-ui, -apple-system, "Segoe UI", sans-serif;
}
@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    color-scheme: dark;
    --page: #0d0d0d;
    --surface-1: #1a1a19;
    --surface-2: #232321;
    --text-primary: #f0efec;
    --text-secondary: #c3c2b7;
    --text-muted: #a3a29a;
    --axis-muted: #898781;
    --grid: #2c2c2a;
    --baseline: #383835;
    --border: rgba(255, 255, 255, 0.10);
    --series-1: #3987e5;
    --series-2: #d95926;
    --series-muted: #5d5c57;
    --good-text: #0ca30c;
    --critical-text: #e66767;
    --accent: #3987e5;
    --focus: #3987e5;
    --badge-sourced-bg: #17331a; --badge-sourced-fg: #8fd68f;
    --badge-derived-bg: #172a43; --badge-derived-fg: #9ec5f4;
    --badge-estimate-bg: #3a2c0d; --badge-estimate-fg: #f0c766;
  }
}
:root[data-theme="dark"] {
  color-scheme: dark;
  --page: #0d0d0d; --surface-1: #1a1a19; --surface-2: #232321;
  --text-primary: #f0efec; --text-secondary: #c3c2b7; --text-muted: #a3a29a;
  --grid: #2c2c2a; --baseline: #383835; --border: rgba(255,255,255,0.10);
  --series-1: #3987e5; --series-2: #d95926; --series-muted: #5d5c57;
  --good-text: #0ca30c; --critical-text: #e66767; --accent: #3987e5; --focus: #3987e5;
  --badge-sourced-bg: #17331a; --badge-sourced-fg: #8fd68f;
  --badge-derived-bg: #172a43; --badge-derived-fg: #9ec5f4;
  --badge-estimate-bg: #3a2c0d; --badge-estimate-fg: #f0c766;
}

* { box-sizing: border-box; }
[hidden] { display: none !important; }
html, body { margin: 0; }
body { background: var(--page); color: var(--text-primary); font: 15px/1.45 var(--font); }
.page { max-width: 1320px; margin: 0 auto; padding: 24px 16px 48px; }
h1 { font-size: 28px; line-height: 1.15; margin: 4px 0 8px; letter-spacing: -0.01em; }
h2 { font-size: 15px; margin: 0; font-weight: 650; }
.eyebrow { margin: 0; color: var(--text-secondary); font-size: 13px; }
.lede { margin: 0; color: var(--text-secondary); max-width: 760px; }
.hint { color: var(--text-muted); font-size: 13px; margin: 4px 0 0; }
a { color: var(--accent); }

button, select, input { font: inherit; color: var(--text-primary); }
button {
  background: var(--accent); color: #fff; border: 0; border-radius: 8px;
  padding: 7px 12px; cursor: pointer; font-size: 14px; white-space: nowrap;
}
button.ghost { background: transparent; color: var(--text-primary); box-shadow: inset 0 0 0 1px var(--border); }
button:disabled { opacity: .45; cursor: default; }
select, input[type="number"] {
  background: var(--surface-1); border: 1px solid var(--border); border-radius: 8px;
  padding: 6px 8px; font-size: 14px; min-width: 0;
}
input[type="number"] { font-variant-numeric: tabular-nums; text-align: right; }
:focus-visible { outline: 2px solid var(--focus); outline-offset: 2px; }
input[type="range"] { width: 100%; accent-color: var(--accent); margin: 0; }

.masthead { margin-bottom: 16px; }
.toolbar {
  display: flex; flex-wrap: wrap; gap: 10px 16px; align-items: flex-end;
  padding: 12px 0 16px; border-bottom: 1px solid var(--border); margin-bottom: 16px;
}
.toolbar .field { display: flex; flex-direction: column; gap: 4px; font-size: 13px; color: var(--text-secondary); }
.toolbar .field select { min-width: 280px; max-width: 100%; }
.toolbar-actions { display: flex; flex-wrap: wrap; gap: 8px; }
.toolbar .hint { flex-basis: 100%; margin: 0; }

.stats { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 12px; margin-bottom: 16px; }
.stat {
  background: var(--surface-1); border: 1px solid var(--border); border-radius: var(--radius);
  padding: 14px 16px; min-width: 0;
}
.stat .label { font-size: 13px; color: var(--text-secondary); }
.stat .value { font-size: 30px; font-weight: 650; line-height: 1.15; margin-top: 4px; letter-spacing: -0.01em; }
.stat .sub { font-size: 13px; color: var(--text-muted); margin-top: 2px; }
.stat.status-good .value { color: var(--good-text); }
.stat.status-bad .value { color: var(--critical-text); }
.status-pill { display: inline-flex; align-items: center; gap: 6px; font-size: 13px; font-weight: 600; margin-top: 6px; }
.status-pill .dot { width: 18px; height: 18px; border-radius: 50%; display: inline-grid; place-items: center; color: #fff; font-size: 12px; }
.status-good .dot { background: var(--good); }
.status-bad .dot { background: var(--critical); }
.meter { height: 8px; background: var(--surface-2); border-radius: 4px; margin-top: 8px; overflow: hidden; }
.meter > span { display: block; height: 100%; background: var(--series-1); border-radius: 4px; transition: width .2s; }

.layout { display: grid; grid-template-columns: minmax(0, 1.25fr) minmax(0, 1fr); gap: 16px; align-items: start; }
.col-main, .col-side { display: flex; flex-direction: column; gap: 16px; min-width: 0; }
.col-side { position: sticky; top: 12px; }
.card { background: var(--surface-1); border: 1px solid var(--border); border-radius: var(--radius); padding: 16px; min-width: 0; }
.card-head { margin-bottom: 12px; }

.rows { display: flex; flex-direction: column; }
.row {
  display: grid; grid-template-columns: minmax(0, 1.4fr) minmax(0, 1.5fr) 120px minmax(110px, .8fr);
  gap: 8px 14px; align-items: center; padding: 10px 0; border-top: 1px solid var(--border);
}
.row:first-child { border-top: 0; }
.row .name { display: flex; flex-direction: column; gap: 2px; min-width: 0; }
.row .name button.link {
  background: none; color: var(--text-primary); padding: 0; text-align: left; font-weight: 600;
  white-space: normal; border-radius: 4px;
}
.row .name .meta { font-size: 12px; color: var(--text-muted); display: flex; gap: 6px; align-items: center; flex-wrap: wrap; }
.rate { display: grid; grid-template-columns: minmax(0, 1fr) 92px; gap: 8px; align-items: center; }
.rate .unitlbl, .units .unitlbl { font-size: 12px; color: var(--text-muted); grid-column: 1 / -1; margin-top: -4px; }
.units { display: flex; flex-direction: column; gap: 4px; }
.units input { width: 100%; }
.amount { text-align: right; font-variant-numeric: tabular-nums; }
.amount .now { font-weight: 650; }
.amount .delta { font-size: 12px; }
.delta.up { color: var(--good-text); }
.delta.down { color: var(--critical-text); }
.delta.flat { color: var(--text-muted); }
.row .note { grid-column: 1 / -1; font-size: 13px; color: var(--text-secondary); background: var(--surface-2); border-radius: 8px; padding: 8px 10px; }
.row .note a { font-size: 12px; }
.row .changed-dot { width: 6px; height: 6px; border-radius: 50%; background: var(--series-1); display: inline-block; }

.exp-row { grid-template-columns: minmax(0, 1.6fr) 150px minmax(110px, .8fr); }
.exp-row .note { grid-column: 1 / -1; }
.total-row { font-weight: 650; border-top: 2px solid var(--baseline) !important; }

.badge { display: inline-block; font-size: 11px; font-weight: 600; padding: 1px 6px; border-radius: 999px; line-height: 1.5; }
.badge.sourced { background: var(--badge-sourced-bg); color: var(--badge-sourced-fg); }
.badge.derived { background: var(--badge-derived-bg); color: var(--badge-derived-fg); }
.badge.estimate { background: var(--badge-estimate-bg); color: var(--badge-estimate-fg); }

.assume-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 14px 20px; }
.assume { display: flex; flex-direction: column; gap: 4px; font-size: 14px; }
.assume .top { display: flex; justify-content: space-between; gap: 8px; }
.assume .top output { font-variant-numeric: tabular-nums; font-weight: 600; }
.assume .desc { font-size: 12px; color: var(--text-muted); }
.assume.check { flex-direction: row; align-items: flex-start; gap: 8px; }
.assume.check input[type="number"] { width: 64px; }

.solver { display: flex; flex-wrap: wrap; gap: 8px; align-items: center; }
.solve-out { font-size: 14px; color: var(--text-secondary); }

.legend { display: flex; flex-wrap: wrap; gap: 14px; margin-top: 6px; font-size: 13px; color: var(--text-secondary); }
.legend .key { display: inline-flex; align-items: center; gap: 6px; }
.legend .sw { width: 12px; height: 12px; border-radius: 3px; display: inline-block; }
.legend .sw.line { height: 3px; border-radius: 2px; width: 16px; }
.chart { width: 100%; position: relative; }
.chart svg { display: block; width: 100%; height: auto; overflow: visible; }
.chart text { font-family: var(--font); }
.tableview summary { cursor: pointer; font-size: 13px; color: var(--text-secondary); margin-top: 8px; }
table { width: 100%; border-collapse: collapse; font-size: 13px; font-variant-numeric: tabular-nums; margin-top: 8px; }
th, td { padding: 6px 8px; text-align: right; border-bottom: 1px solid var(--border); }
th:first-child, td:first-child { text-align: left; }
th { font-weight: 600; color: var(--text-secondary); }

.tooltip {
  position: fixed; z-index: 20; pointer-events: none; background: var(--surface-1); color: var(--text-primary);
  border: 1px solid var(--border); border-radius: 8px; padding: 8px 10px; font-size: 13px;
  box-shadow: 0 6px 20px rgba(0,0,0,.14); max-width: 260px;
}
.tooltip .tt-title { font-weight: 650; margin-bottom: 4px; }
.tooltip .tt-row { display: flex; gap: 10px; justify-content: space-between; align-items: center; font-variant-numeric: tabular-nums; }
.tooltip .tt-row .sw { width: 10px; height: 10px; border-radius: 2px; display: inline-block; margin-right: 6px; }
.toast {
  position: fixed; bottom: 20px; left: 50%; transform: translateX(-50%); z-index: 30;
  background: var(--text-primary); color: var(--page); padding: 10px 14px; border-radius: 8px; font-size: 14px;
}
.sources { margin-top: 16px; }
.sources ul { padding-left: 18px; margin: 8px 0; font-size: 14px; }
.sources li { margin: 4px 0; }

@media (max-width: 1060px) {
  .layout { grid-template-columns: minmax(0, 1fr); }
  .col-side { position: static; }
}
@media (max-width: 760px) {
  .stats { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .stat .value { font-size: 24px; }
  .row { grid-template-columns: minmax(0, 1fr) minmax(0, 1fr); }
  .row .name { grid-column: 1 / -1; }
  .row .amount { grid-column: 1 / -1; text-align: left; display: flex; gap: 10px; align-items: baseline; }
  .exp-row { grid-template-columns: minmax(0, 1fr) 130px; }
  .exp-row .amount { grid-column: auto; text-align: right; display: block; }
  .assume-grid { grid-template-columns: minmax(0, 1fr); }
  .toolbar .field select { min-width: 0; width: 100%; }
  .toolbar .field { flex: 1 1 100%; }
}

/* ---------- navigation & shared ---------- */
.tabs { display: flex; gap: 4px; margin-bottom: 14px; border-bottom: 1px solid var(--border); }
.tabs a { padding: 8px 12px; color: var(--text-secondary); text-decoration: none; border-bottom: 2px solid transparent; margin-bottom: -1px; font-size: 14px; }
.tabs a[aria-current="page"] { color: var(--text-primary); border-bottom-color: var(--accent); font-weight: 600; }
.button, label.button { display: inline-flex; align-items: center; background: var(--accent); color: #fff; border-radius: 8px; padding: 7px 12px; font-size: 14px; text-decoration: none; cursor: pointer; white-space: nowrap; }
label.button.ghost { background: transparent; color: var(--text-primary); box-shadow: inset 0 0 0 1px var(--border); }
button.icon { padding: 2px 9px; font-size: 16px; line-height: 1.2; }
.banner { border-radius: var(--radius); padding: 12px 14px; margin-bottom: 14px; font-size: 14px; }
.banner.warn { background: var(--badge-estimate-bg); color: var(--badge-estimate-fg); }
:root { --badge-hyp-bg: #f8dddd; --badge-hyp-fg: #8f1f1f; }
@media (prefers-color-scheme: dark) { :root:not([data-theme="light"]) { --badge-hyp-bg: #3d1a1a; --badge-hyp-fg: #f2a3a3; } }
:root[data-theme="dark"] { --badge-hyp-bg: #3d1a1a; --badge-hyp-fg: #f2a3a3; }
.badge.documented { background: var(--badge-sourced-bg); color: var(--badge-sourced-fg); }
.badge.assumed { background: var(--badge-derived-bg); color: var(--badge-derived-fg); }
.badge.hypothetical { background: var(--badge-hyp-bg); color: var(--badge-hyp-fg); }
.muted { color: var(--text-muted); }
.ok-text { color: var(--good-text); }
.warn-text { color: var(--critical-text); font-size: 12px; display: block; }
.neg { color: var(--critical-text); font-weight: 650; }
.pos { color: var(--good-text); font-weight: 650; }
.policy-tag { display: inline-block; font-size: 11px; font-weight: 600; padding: 1px 6px; border-radius: 999px; background: var(--badge-hyp-bg); color: var(--badge-hyp-fg); margin-left: 6px; vertical-align: middle; }

/* ---------- fee derivation ---------- */
.table-wrap { overflow-x: auto; }
.num { text-align: right; font-variant-numeric: tabular-nums; white-space: nowrap; }
table.ledger, table.fn-table { min-width: 860px; }
table.ledger td, table.fn-table td { vertical-align: top; }
table.ledger input[type="text"], table.fn-table input[type="text"] { width: 100%; min-width: 140px; background: var(--surface-1); border: 1px solid var(--border); border-radius: 8px; padding: 6px 8px; font: inherit; font-size: 13px; color: var(--text-primary); }
table.ledger select, table.fn-table select { max-width: 230px; font-size: 13px; }
table.fn-table input[type="number"] { width: 90px; }
.group-row th { text-align: left; background: var(--surface-2); color: var(--text-secondary); font-size: 12px; text-transform: uppercase; letter-spacing: .03em; }
tfoot th { border-top: 2px solid var(--baseline); }
.contract-summary { display: flex; flex-wrap: wrap; gap: 12px 28px; margin-bottom: 12px; }
.contract-summary .label { display: block; font-size: 12px; color: var(--text-muted); }
.pools { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 16px; }
.pool { border: 1px solid var(--border); border-radius: var(--radius); padding: 12px; min-width: 0; }
.pool h3, .deriv h3 { margin: 0 0 8px; font-size: 15px; }
.pool input[type="text"] { width: 100%; }
.pool-table input[type="number"] { width: 90px; }
.pool-ev { display: flex; gap: 10px; margin-top: 8px; }
.stack { display: flex; flex-direction: column; gap: 3px; font-size: 13px; color: var(--text-secondary); min-width: 0; }
.stack input, .stack select { color: var(--text-primary); }
.stack input[type="text"] { background: var(--surface-1); border: 1px solid var(--border); border-radius: 8px; padding: 6px 8px; font: inherit; font-size: 13px; }
.stack.grow { flex: 1; }
.derivations { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 16px; }
.deriv { border: 1px solid var(--border); border-radius: var(--radius); padding: 14px; min-width: 0; }
.deriv header { display: flex; justify-content: space-between; gap: 8px; align-items: baseline; flex-wrap: wrap; }
.deriv-inputs { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 10px; margin: 6px 0 12px; padding-bottom: 12px; border-bottom: 1px solid var(--border); }
.deriv-inputs .wide { grid-column: 1 / -1; }
.deriv-inputs input[type="number"] { width: 100%; }
.pill { font-size: 12px; font-weight: 600; padding: 2px 8px; border-radius: 999px; }
.pill.partial { background: var(--badge-hyp-bg); color: var(--badge-hyp-fg); }
.pill.ok { background: var(--badge-sourced-bg); color: var(--badge-sourced-fg); }
table.kv th { text-align: left; font-weight: 500; color: var(--text-secondary); width: 48%; vertical-align: top; }
table.kv tr.em th, table.kv tr.em td { font-weight: 650; color: var(--text-primary); }
table.kv .sub { font-size: 12px; color: var(--text-muted); text-align: right; white-space: normal; font-weight: 400; }
.sub-inline { font-size: 12px; color: var(--text-muted); font-weight: 400; }
.limits { font-size: 13px; margin-top: 10px; background: var(--surface-2); border-radius: 8px; padding: 8px 10px; }
.limits ul { margin: 4px 0 0; padding-left: 18px; color: var(--text-secondary); }
.trace-d summary { cursor: pointer; font-size: 13px; color: var(--accent); margin-top: 10px; }
table.trace td { text-align: left; vertical-align: top; font-size: 12px; }
table.trace td.num { text-align: right; }
.recon-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 20px; }
.gap-note { margin: 14px 0 0; font-size: 14px; max-width: 900px; }
.handoff { display: flex; flex-wrap: wrap; gap: 10px; align-items: center; margin-top: 14px; }
@media (max-width: 900px) {
  .pools, .derivations, .recon-grid { grid-template-columns: minmax(0, 1fr); }
  .deriv-inputs { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}
@media (max-width: 480px) { .deriv-inputs { grid-template-columns: minmax(0, 1fr); } }
table.ledger th, table.fn-table th, table.pool-table th, table.trace th { text-align: left; }
table.ledger th.num, table.fn-table th.num, table.pool-table th.num, table.trace th.num { text-align: right; }