/* IFRS 9 ECL Copilot — App v3 "The Modern Risk Platform" (FINAL_SPEC.md,
   binding judge decision: fintech + 5 grafts). Two token layers: the
   validated dataviz chart/data layer (categorical/status/diverging hues,
   fixed slot order — see palette.js) and the UI chrome layer below, which
   replaces the previous styles.css tokens outright. Light is the OS
   default; dark mirrors via prefers-color-scheme, with [data-theme]
   overrides reserved for a future manual toggle. */

:root {
  /* categorical (fixed order — identity, never rank; FINAL_SPEC §1.2) */
  --cat-1: #2a78d6; /* blue */
  --cat-2: #008300; /* green */
  --cat-3: #e87ba4; /* magenta */
  --cat-4: #eda100; /* yellow */
  --cat-5: #1baf7a; /* aqua */
  --cat-6: #eb6834; /* orange */
  --cat-7: #4a3aa7; /* violet */
  --cat-8: #e34948; /* red */

  /* status (reserved — never reused for series identity) */
  --status-good: #0ca30c;
  --status-warning: #fab219;
  --status-serious: #ec835a;
  --status-critical: #d03b3b;

  /* chrome (FINAL_SPEC §1.1) */
  --page: #f9f9f7;
  --panel: #fcfcfb;
  --panel-2: #ffffff;
  --border: rgba(11, 11, 11, 0.10);
  --border-strong: rgba(11, 11, 11, 0.16);
  --ink: #0b0b0b;
  --ink-2: #52514e;
  --ink-3: #898781;
  --grid: #e1e0d9;
  --baseline: #c3c2b7;
  --accent: #2a78d6;
  --accent-solid: #1c5cab;
  --accent-on-solid: #ffffff;
  --accent-text: #1c5cab;
  --accent-wash: rgba(42, 120, 214, 0.08);
  --increase: var(--accent);
  --decrease: #e34948;
  --level-fill: #52514e;
  --good: #0ca30c;
  --good-text: #006300;
  --critical: #d03b3b;
  --critical-text: #d03b3b;
  --warning: #fab219;
  --serious: #ec835a;
  --good-wash: rgba(0, 99, 0, 0.10);
  --critical-wash: rgba(208, 59, 59, 0.10);
  --shadow-e1: 0 1px 2px rgba(11, 11, 11, .06);
  --shadow-e2: 0 8px 24px rgba(11, 11, 11, .12);

  /* back-compat aliases still referenced by a few components */
  --surface: var(--panel);
  --line: var(--border);
  --ink-muted: var(--ink-2);
  --axis-muted: var(--ink-3);
  --warn: var(--decrease);

  --sans: -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial, system-ui, sans-serif;
  --mono: ui-monospace, "SFMono-Regular", "Cascadia Code", Consolas, "Liberation Mono", Menlo, monospace;

  --sp-1: 4px;  --sp-2: 8px;  --sp-3: 12px; --sp-4: 16px; --sp-5: 20px;
  --sp-6: 24px; --sp-8: 32px; --sp-10: 40px; --sp-12: 48px; --sp-16: 64px;
  --radius-sm: 6px;
  --radius-md: 10px;
  --radius-pill: 999px;
}

@media (prefers-color-scheme: dark) {
  :root {
    --cat-1: #3987e5;
    --cat-2: #008300;
    --cat-3: #d55181;
    --cat-4: #c98500;
    --cat-5: #199e70;
    --cat-6: #d95926;
    --cat-7: #9085e9;
    --cat-8: #e66767;

    --page: #0d0d0d;
    --panel: #1a1a19;
    --panel-2: #232322;
    --border: rgba(255, 255, 255, 0.10);
    --border-strong: rgba(255, 255, 255, 0.16);
    --ink: #ffffff;
    --ink-2: #c3c2b7;
    --ink-3: #898781;
    --grid: #2c2c2a;
    --baseline: #383835;
    --accent: #3987e5;
    --accent-solid: #3987e5;
    --accent-on-solid: #0b0b0b;
    --accent-text: #3987e5;
    --accent-wash: rgba(57, 135, 229, 0.10);
    --increase: var(--accent);
    --decrease: #e66767;
    --level-fill: #c3c2b7;
    --good: #0ca30c;
    --good-text: #0ca30c;
    --critical: #d03b3b;
    --critical-text: #e66767;
    --good-wash: rgba(12, 163, 12, 0.14);
    --critical-wash: rgba(230, 103, 103, 0.14);
    --shadow-e1: 0 1px 2px rgba(0, 0, 0, .36);
    --shadow-e2: 0 8px 24px rgba(0, 0, 0, .5);
  }
}

/* explicit manual-toggle overrides (win over the media query either way) */
:root[data-theme='dark'] {
  color-scheme: dark;
}
:root[data-theme='light'] {
  color-scheme: light;
}

* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

body {
  font-family: var(--sans);
  font-size: 14px;
  line-height: 1.5;
  color: var(--ink);
  background: var(--page);
  -webkit-font-smoothing: antialiased;
}

button, input, select {
  font-family: inherit;
  color: inherit;
}

.num {
  font-variant-numeric: tabular-nums;
  color: var(--ink);
}

:focus-visible {
  outline: none;
  box-shadow: 0 0 0 2px var(--page), 0 0 0 4px var(--accent);
  border-radius: var(--radius-sm);
}

/* -------------------------------------------------------------- app shell */

.app-shell {
  max-width: 1180px;
  margin: 0 auto;
  min-height: 100vh;
}

.app-header {
  position: sticky;
  top: 0;
  z-index: 20;
  display: flex;
  align-items: center;
  gap: var(--sp-6);
  flex-wrap: wrap;
  padding: 14px var(--sp-6);
  background: var(--page);
  border-bottom: 1px solid var(--border);
}

.brand {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-shrink: 0;
}

.brand-mark {
  width: 26px;
  height: 26px;
  border-radius: 7px;
  background: var(--accent);
  color: var(--accent-on-solid);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 11px;
  font-weight: 700;
  flex-shrink: 0;
}

.brand-name {
  font-size: 16px;
  font-weight: 600;
  color: var(--ink);
  white-space: nowrap;
}

/* Header brand-row link to the static Model Development Document, opened
   in a new tab (app/ui/src/app.jsx) -- a small pill next to the wordmark,
   never competing with the primary tab nav for attention. */
.mdd-link {
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.04em;
  color: var(--ink-3);
  border: 1px solid var(--border);
  border-radius: var(--radius-pill);
  padding: 3px 9px;
  text-decoration: none;
  white-space: nowrap;
}
.mdd-link:hover { color: var(--accent-text); border-color: var(--accent); }

.grounded-badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 11px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  color: var(--ink-3);
  border: 1px solid var(--border);
  border-radius: var(--radius-pill);
  padding: 4px 10px;
  white-space: nowrap;
}

.grounded-badge .status-dot { background: var(--good); width: 6px; height: 6px; }

.header-meta {
  margin-left: auto;
  font-size: 12px;
  color: var(--ink-3);
  font-variant-numeric: tabular-nums;
  white-space: nowrap;
}

.tab-nav {
  display: flex;
  gap: var(--sp-6);
  flex-wrap: wrap;
  border-bottom: 1px solid var(--border);
  padding: 0 var(--sp-6);
  background: var(--page);
}

.tab-btn {
  border: none;
  background: transparent;
  color: var(--ink-2);
  font-size: 14px;
  font-weight: 500;
  padding: 12px 0;
  margin-bottom: -1px;
  border-bottom: 2px solid transparent;
  cursor: pointer;
  transition: color 0.12s ease, border-color 0.12s ease;
}

.tab-btn:hover {
  color: var(--ink);
}

.tab-btn.active {
  color: var(--ink);
  font-weight: 600;
  border-bottom-color: var(--accent);
}

.app-main {
  padding: var(--sp-6) var(--sp-6) 160px;
}

.tab-body {
  display: flex;
  flex-direction: column;
  gap: 20px;
  max-width: 1080px;
  margin: 0 auto;
}

.tab-intro h1 {
  font-size: 24px;
  font-weight: 700;
  line-height: 1.2;
  color: var(--ink);
  margin-bottom: 4px;
  letter-spacing: -0.01em;
}

.tab-intro p {
  color: var(--ink-2);
  font-size: 14px;
  max-width: 760px;
}

/* ----------------------------------------------------------------- tiles */

.tiles {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 16px;
}

@media (max-width: 900px) { .tiles { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 620px) { .tiles { grid-template-columns: 1fr; } }

.tile {
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: 18px 18px 16px;
  box-shadow: var(--shadow-e1);
  display: flex;
  flex-direction: column;
}

.tile-head {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 8px;
}

.tile-label {
  font-size: 11px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  color: var(--ink-3);
}

.tile-value {
  font-size: 32px;
  font-weight: 600;
  line-height: 1.1;
  letter-spacing: -0.01em;
  color: var(--ink);
  font-variant-numeric: normal;
  margin-top: 6px;
}

.tile-hint {
  font-size: 13px;
  color: var(--ink-2);
  margin-top: 4px;
}

.tile-delta {
  font-size: 12px;
  font-weight: 600;
  margin-top: 6px;
  font-variant-numeric: tabular-nums;
  border-radius: var(--radius-pill);
  padding: 2px 8px;
  display: inline-flex;
  width: fit-content;
  gap: 4px;
}

.tile-delta-good { color: var(--good-text); background: var(--good-wash); }
.tile-delta-bad { color: var(--critical-text); background: var(--critical-wash); }

/* ----------------------------------------------------------------- panel */

.panel {
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: 20px;
  box-shadow: var(--shadow-e1);
}

.panel h2 {
  font-size: 16px;
  font-weight: 600;
  line-height: 1.35;
  color: var(--ink);
}

.panel h3 {
  font-size: 13px;
  font-weight: 700;
  color: var(--ink);
  margin: 14px 0 6px;
}

.panel-kicker-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  min-height: 28px;
  margin-bottom: 2px;
}

.exhibit-kicker {
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--accent-text);
}

.panel-actions {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  margin-left: auto;
}

.panel-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  flex-wrap: wrap;
}

.panel-sub {
  color: var(--ink-2);
  font-size: 13px;
  margin: 3px 0 12px;
  line-height: 1.5;
}

.panel-source {
  font-size: 11px;
  color: var(--ink-3);
  font-family: var(--mono);
  margin-top: 10px;
}
.panel-source code { font-family: var(--mono); }

.panel-hr {
  border-top: 1px solid var(--border);
  margin: 12px 0;
}

.chart-caveat {
  font-size: 12px !important;
  margin: 10px 0 0 !important;
}

.chart-legend-row {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
  font-size: 12px;
  color: var(--ink-2);
  margin-top: 10px;
}

.preamble {
  white-space: pre-line;
}

.chart {
  width: 100%;
  height: 300px;
}

.chart-tall {
  height: 340px;
}

.empty-note {
  color: var(--ink-2);
  font-size: 13px;
  padding: 10px 0;
  list-style: none;
}

.chip-row {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.chip {
  font: inherit;
  font-size: 13px;
  color: var(--ink-2);
  background: transparent;
  border: 1px solid var(--border);
  border-radius: var(--radius-pill);
  padding: 6px 12px;
  cursor: pointer;
  text-align: left;
}

.chip:hover {
  color: var(--ink);
  border-color: var(--accent);
}

/* -------------------------------------------------------------- controls */

.segmented {
  display: flex;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  overflow: hidden;
}

.segmented button {
  border: none;
  background: var(--panel);
  color: var(--ink-2);
  font-size: 12.5px;
  font-weight: 500;
  padding: 6px 12px;
  cursor: pointer;
}

.segmented button + button {
  border-left: 1px solid var(--border);
}

.segmented button.active {
  background: var(--accent-solid);
  color: var(--accent-on-solid);
}

.control-row {
  display: flex;
  gap: 10px;
  margin-bottom: 8px;
  flex-wrap: wrap;
  align-items: center;
}

.control-row label {
  display: flex;
  align-items: center;
  gap: 6px;
  font-size: 12.5px;
  color: var(--ink-2);
}

.control-row input[type='number'] {
  width: 64px;
  padding: 4px 6px;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  background: var(--panel-2);
  color: var(--ink);
}

select {
  padding: 6px 8px;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  background: var(--panel-2);
  color: var(--ink);
  font-size: 13px;
}

.slider-row {
  display: grid;
  grid-template-columns: 88px 1fr 46px;
  align-items: center;
  gap: 8px;
  margin-bottom: 6px;
}

.slider-label {
  font-size: 13px;
}

.slider-value {
  font-variant-numeric: tabular-nums;
  font-size: 13px;
  text-align: right;
  color: var(--ink-2);
}

input[type='range'] {
  width: 100%;
  accent-color: var(--accent);
}

/* ---------------------------------------------------------------- buttons */

.btn {
  font-family: var(--sans);
  font-size: 14px;
  font-weight: 600;
  color: var(--accent-on-solid);
  background: var(--accent-solid);
  border: none;
  border-radius: var(--radius-sm);
  height: 36px;
  padding: 0 16px;
  cursor: pointer;
  margin-top: 6px;
}

.btn:hover:not(:disabled) {
  filter: brightness(1.08);
}

.btn:disabled {
  opacity: 0.45;
  cursor: not-allowed;
}

.btn-secondary {
  color: var(--ink);
  background: transparent;
  border: 1px solid var(--border);
  font-weight: 500;
}

.status {
  font-size: 13px;
  margin-top: 8px;
}

.status-ok { color: var(--good-text); }
.status-err { color: var(--critical-text); }
.muted { color: var(--ink-2); }

/* ------------------------------------------------------------ status dots */

.status-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  display: inline-block;
  flex-shrink: 0;
}
.status-dot-good { background: var(--good); }
.status-dot-warn { background: var(--warning); }
.status-dot-crit { background: var(--critical); }
.status-dot-muted { background: var(--ink-3); }
/* REASONED: a cited interpretation, never a fresh engine number — its own
   hue (accent blue), distinct from good/warn/crit/muted so it never reads
   as either "grounded success" or "trouble". */
.status-dot-accent { background: var(--accent); }

@media (prefers-reduced-motion: no-preference) {
  .status-dot-warn.pulse { animation: dot-pulse 1.1s ease-in-out infinite; }
}
@keyframes dot-pulse {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.35; }
}

/* ----------------------------------------------------- AI-explain affordance */

.explain-btn {
  width: 28px;
  height: 28px;
  border-radius: var(--radius-pill);
  border: none;
  background: transparent;
  color: var(--ink-3);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: color 0.12s ease, background 0.12s ease;
  flex-shrink: 0;
}

.explain-btn:hover {
  color: var(--accent);
  background: var(--panel-2);
}

.explain-btn[aria-expanded='true'] {
  color: var(--accent);
  background: var(--accent-wash);
}

/* Loading: 2px accent ring; pulse only without prefers-reduced-motion (§7.2) */
.explain-btn.loading {
  box-shadow: 0 0 0 2px var(--accent);
}
@media (prefers-reduced-motion: no-preference) {
  .explain-btn.loading { animation: dot-pulse 1.1s ease-in-out infinite; }
}

/* Hover/focus tooltip for icon-buttons carrying data-tip (§7.2) — an E2
   mini-panel, --text-xs, rendered from the attribute so API strings never
   reach innerHTML. */
[data-tip] { position: relative; }
[data-tip]:hover::after,
[data-tip]:focus-visible::after {
  content: attr(data-tip);
  position: absolute;
  top: calc(100% + 6px);
  right: 0;
  z-index: 40;
  background: var(--panel-2);
  color: var(--ink);
  border: 1px solid var(--border-strong);
  border-radius: var(--radius-sm);
  box-shadow: var(--shadow-e2);
  font-size: 12px;
  font-weight: 500;
  line-height: 1.4;
  padding: 4px 8px;
  white-space: nowrap;
  pointer-events: none;
}

.icon-btn {
  width: 28px;
  height: 28px;
  border-radius: var(--radius-sm);
  border: none;
  background: transparent;
  color: var(--ink-2);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  font-size: 14px;
  transition: color 0.12s ease, background 0.12s ease;
}
.icon-btn:hover { color: var(--accent); background: var(--panel-2); }
.icon-btn[aria-pressed='true'] { color: var(--accent); background: var(--accent-wash); }

.tile-head .explain-btn { margin-top: -2px; }

.explain-strip {
  margin-top: 12px;
  padding-top: 12px;
  border-top: 1px solid var(--border);
  display: flex;
  gap: 10px;
  align-items: flex-start;
}

.explain-avatar {
  width: 22px;
  height: 22px;
  border-radius: var(--radius-pill);
  background: var(--accent-wash);
  color: var(--accent);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.explain-body {
  flex: 1;
  min-width: 0;
}

.explain-status {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 11px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  color: var(--ink-3);
  margin-bottom: 4px;
}

.explain-text {
  font-size: 13px;
  color: var(--ink-2);
  line-height: 1.55;
}

/* ---------------------------------------------------------- selection-explain */

.selection-explain {
  position: fixed;
  z-index: 50;
  transform: translateX(-50%);
  max-width: min(360px, 80vw);
}

.selection-chip {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 12px;
  font-weight: 600;
  color: var(--accent-on-solid);
  background: var(--accent-solid);
  border: none;
  border-radius: var(--radius-pill);
  padding: 7px 12px;
  cursor: pointer;
  box-shadow: var(--shadow-e2);
  white-space: nowrap;
}
.selection-chip:hover { filter: brightness(1.08); }

.explain-strip-floating {
  background: var(--panel-2);
  border: 1px solid var(--border-strong);
  border-radius: var(--radius-sm);
  box-shadow: var(--shadow-e2);
  padding: 14px;
  margin-top: 0;
}

/* --------------------------------------------------------------- tables */

.searchable-table { display: flex; flex-direction: column; gap: 4px; }

.table-toolbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  margin-bottom: 6px;
}

.table-search {
  flex: 1;
  max-width: 320px;
  padding: 6px 10px;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  background: var(--panel-2);
  color: var(--ink);
  font-size: 13px;
}

.table-count {
  font-size: 11.5px;
  color: var(--ink-3);
  white-space: nowrap;
}

.table-scroll {
  overflow-x: auto;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
}

.data-table {
  border-collapse: collapse;
  width: 100%;
  font-size: 13px;
}

.data-table th, .data-table td {
  padding: 0 10px;
  height: 44px;
  text-align: left;
  border-top: 1px solid var(--border);
  white-space: nowrap;
}

.data-table thead tr th { border-top: none; }

.data-table th {
  background: var(--panel);
  color: var(--ink-3);
  font-size: 11px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  border-bottom: 1px solid var(--border-strong);
  position: sticky;
  top: 0;
}

.data-table td {
  color: var(--ink-2);
}

.data-table .num-cell,
.data-table td.num,
.data-table th.num {
  text-align: right;
  font-variant-numeric: tabular-nums;
  color: var(--ink);
}

.data-table tbody tr:hover td { background: var(--panel-2); }

.data-table .cap { text-transform: capitalize; }

.data-table .family-row td {
  background: var(--panel);
  font-weight: 700;
  color: var(--accent-text);
  text-transform: uppercase;
  font-size: 10.5px;
  letter-spacing: 0.05em;
  white-space: normal;
  height: auto;
  padding: 10px;
}

.data-table .story-row td {
  white-space: normal;
  color: var(--ink-3);
  font-style: italic;
  font-size: 12px;
  border-bottom: 2px solid var(--border);
  height: auto;
  padding: 6px 10px 12px;
}

.data-table .hr-up { color: var(--critical-text); font-variant-numeric: tabular-nums; }
.data-table .hr-down { color: var(--good-text); font-variant-numeric: tabular-nums; }

.data-table .row-adopted td {
  background: var(--accent-wash);
  border-left: 2px solid var(--accent);
  font-weight: 600;
}
.data-table .row-adopted td:first-child { padding-left: 8px; }

/* Scenario-row leading status dot (§5.3): 9px, name stays the label. */
.scenario-dot {
  width: 9px;
  height: 9px;
  border-radius: 50%;
  display: inline-block;
  margin-right: 8px;
  vertical-align: baseline;
}
.scenario-dot-good { background: var(--good); }
.scenario-dot-muted { background: var(--ink-3); }
.scenario-dot-crit { background: var(--critical); }

/* Δ-vs-base/adopted pill (§5.3): wash background, readable status text,
   ▲/▼ inside the same text run — one coherent string for screen readers. */
.delta-pill {
  display: inline-flex;
  align-items: center;
  border-radius: var(--radius-pill);
  padding: 2px 8px;
  font-size: 12px;
  font-weight: 600;
  font-variant-numeric: tabular-nums;
}
.delta-pill-good { color: var(--good-text); background: var(--good-wash); }
.delta-pill-bad { color: var(--critical-text); background: var(--critical-wash); }

.adopted-tag {
  font-size: 10px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--accent-text);
  margin-left: 8px;
}

/* The backtest honesty panel's headline callout (Real Data tab, Exhibit 3):
   a big number + one sentence, critical-tinted -- the 9.42x GFC miss ratio
   needs to read before the table does. */
.callout {
  display: flex;
  align-items: baseline;
  gap: 14px;
  margin-bottom: 14px;
  padding: 14px 16px;
  border-radius: var(--radius-md);
  border: 1px solid var(--border);
}
.callout-crit {
  background: var(--critical-wash);
  border-color: var(--critical);
}
.callout-figure {
  font-size: 32px;
  font-weight: 700;
  font-variant-numeric: tabular-nums;
  color: var(--critical-text);
  white-space: nowrap;
}
.callout-text {
  font-size: 14px;
  color: var(--ink-2);
  line-height: 1.5;
}

/* Real Data tab's backtest panel is the centerpiece exhibit -- a slightly
   heavier accent border marks it out from the surrounding panels. */
.freddie-centerpiece {
  border-color: var(--accent);
}

.caveat-block {
  margin-top: 12px;
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.caveat {
  font-size: 13px;
  color: var(--ink-2);
  background: var(--page);
  border-left: 3px solid var(--accent);
  padding: 8px 12px;
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
  line-height: 1.5;
}

.two-col {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
  margin-top: 8px;
}

/* ---------------------------------------------------------- Requirement 12
   macro/FRED interpretation: expandable coefficient rows, FRED badges, the
   "How to read" intro panel, and the macro-glossary collapsible panel. */

.row-expand-btn {
  font: inherit;
  background: transparent;
  border: none;
  color: var(--ink-3);
  cursor: pointer;
  width: 22px;
  height: 22px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius-sm);
}
.row-expand-btn:hover { color: var(--accent-text); background: var(--accent-wash); }
.row-expand-caret { font-size: 11px; }

.data-table tbody tr.row-open td { background: var(--accent-wash); }
.data-table.coef-table tbody tr.coef-row { cursor: pointer; }

.interp-row td {
  white-space: normal;
  height: auto;
  padding: 0;
  border-bottom: 2px solid var(--border);
}

.interp-body {
  padding: 12px 14px 14px 40px;
  background: var(--page);
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.interp-tags {
  display: flex;
  gap: 6px;
  margin-bottom: 2px;
}

.interp-line {
  font-size: 13px;
  color: var(--ink-2);
  line-height: 1.5;
  margin: 0;
}
.interp-line b { color: var(--ink); }

.interp-worked {
  font-weight: 500;
  color: var(--ink);
  background: var(--accent-wash);
  border-left: 3px solid var(--accent);
  padding: 6px 10px;
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
}

.fred-badge {
  display: inline-flex;
  align-items: center;
  font-size: 10.5px;
  font-weight: 700;
  letter-spacing: 0.03em;
  text-transform: uppercase;
  color: var(--accent-text);
  background: var(--accent-wash);
  border: 1px solid var(--accent);
  border-radius: var(--radius-pill);
  padding: 2px 8px;
  white-space: nowrap;
}

.fred-badge-inline {
  margin-left: 8px;
  font-size: 9.5px;
  padding: 1px 6px;
  vertical-align: middle;
}

.lag-badge {
  display: inline-flex;
  align-items: center;
  font-size: 10.5px;
  color: var(--ink-3);
  background: var(--panel-2);
  border: 1px solid var(--border);
  border-radius: var(--radius-pill);
  padding: 2px 8px;
  white-space: nowrap;
}

.macro-glossary { margin-top: 0; }
.macro-glossary summary { font-weight: 600; }

.coherent-shock-note {
  margin-bottom: 10px;
}

@media (max-width: 780px) {
  .two-col { grid-template-columns: 1fr; }
}

/* ------------------------------------------------------------- exhibits */

.exhibit-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 16px;
  margin-top: 8px;
}

.exhibit {
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 10px;
  background: var(--page);
}

.exhibit img {
  width: 100%;
  height: auto;
  border-radius: 4px;
  display: block;
  background: #fff;
}

.exhibit-title {
  font-size: 12.5px;
  font-weight: 700;
  color: var(--ink);
  margin-bottom: 6px;
}

.exhibit-caption {
  font-size: 11.5px;
  color: var(--ink-3);
  margin-top: 6px;
  line-height: 1.4;
}

.exhibit-missing {
  font-size: 12px;
  color: var(--critical-text);
  padding: 20px 0;
  text-align: center;
}

/* --------------------------------------------------------------- stages */

.stage-mix { display: flex; flex-direction: column; gap: 10px; }

.stage-mix-bar {
  display: flex;
  width: 100%;
  height: 28px;
  border-radius: var(--radius-sm);
  overflow: hidden;
  border: 1px solid var(--border);
}

.stage-seg {
  display: flex;
  align-items: center;
  justify-content: center;
  color: #fff;
  font-size: 11px;
  font-weight: 700;
  font-variant-numeric: tabular-nums;
  min-width: 2px;
  border-right: 2px solid var(--panel);
}
.stage-seg:last-child { border-right: none; }

.stage-good, .legend-dot.stage-good { background: var(--status-good); }
.stage-warn, .legend-dot.stage-warn { background: var(--status-warning); }
.stage-crit, .legend-dot.stage-crit { background: var(--status-critical); }

.stage-mix-legend {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
  font-size: 12px;
  color: var(--ink-2);
}

.legend-item {
  display: inline-flex;
  align-items: center;
  gap: 6px;
}

.legend-dot {
  width: 10px;
  height: 10px;
  border-radius: 3px;
  display: inline-block;
}

/* --------------------------------------------------------------- policy */

.decision-header {
  display: flex;
  align-items: baseline;
  gap: 8px;
  flex-wrap: wrap;
  background: var(--accent-wash);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 8px 12px;
  margin: 6px 0 14px;
}

.decision-tag {
  font-size: 10.5px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--accent-text);
  white-space: nowrap;
}

.decision-text {
  font-size: 12.5px;
  color: var(--ink);
}

.overlay-note {
  font-size: 13px;
  color: var(--ink);
  line-height: 1.6;
  margin-bottom: 10px;
}

/* stage-horizon explainer */
.stage-guide {
  margin-top: 10px;
  font-size: 12.5px;
  color: var(--ink-2);
  border-top: 1px solid var(--border);
  padding-top: 8px;
}
.stage-guide summary {
  cursor: pointer;
  font-weight: 600;
  color: var(--ink);
}
.stage-guide ul {
  margin: 8px 0 6px 18px;
  padding: 0;
}
.stage-guide li {
  margin-bottom: 6px;
  line-height: 1.45;
}
.stage-guide p {
  margin: 4px 0 2px;
  line-height: 1.45;
}

/* ----------------------------------------------------------- scenario lab */

.scenario-grid {
  display: grid;
  grid-template-columns: 340px 1fr;
  gap: 16px;
  align-items: start;
}

.scenario-controls-col, .scenario-result-col {
  display: flex;
  flex-direction: column;
  gap: 14px;
}

@media (max-width: 900px) {
  .scenario-grid { grid-template-columns: 1fr; }
}

.result-card {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.result-card-head {
  display: flex;
  align-items: center;
  gap: 8px;
  flex-wrap: wrap;
}

.result-tool {
  font-family: var(--mono);
  font-size: 11px;
  background: var(--page);
  border: 1px solid var(--border);
  border-radius: 4px;
  padding: 2px 6px;
  color: var(--accent-text);
}

.result-label {
  font-size: 12.5px;
  color: var(--ink-2);
}

.result-headline {
  font-size: 13.5px;
  color: var(--ink);
  line-height: 1.5;
}

.result-metrics {
  display: flex;
  gap: 14px;
  flex-wrap: wrap;
  font-size: 12.5px;
  color: var(--ink-2);
}

.result-metrics b {
  color: var(--ink);
  font-variant-numeric: tabular-nums;
}

/* ------------------------------------------------------------ narrative */

.narrative-panel .narrative-text {
  font-size: 14px;
  line-height: 1.7;
  color: var(--ink);
  max-width: 860px;
}

/* -------------------------------------------------------- interpretation */

.interpretation {
  background: var(--page);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 10px 12px;
}

.interpretation-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 6px;
}

.interpretation-label {
  font-size: 10.5px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--ink-3);
}

.badge-ground {
  font-size: 10px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  border-radius: 3px;
  padding: 2px 7px;
}

.badge-ai { background: var(--accent-wash); color: var(--accent-text); }
.badge-engine { background: var(--panel-2); color: var(--ink-3); border: 1px solid var(--border); }

.interpretation-text {
  font-size: 13px;
  color: var(--ink);
  line-height: 1.55;
}

.interpretation-loading {
  font-size: 12.5px;
  color: var(--ink-2);
  display: flex;
  align-items: center;
  gap: 8px;
}

.spinner {
  width: 12px;
  height: 12px;
  border-radius: 50%;
  border: 2px solid var(--border);
  border-top-color: var(--accent);
  animation: spin 0.7s linear infinite;
  display: inline-block;
}

@media (prefers-reduced-motion: reduce) {
  .spinner { animation: none; }
}

@keyframes spin {
  to { transform: rotate(360deg); }
}

/* ----------------------------------------------------------- agent trace */

.conn {
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  color: var(--ink-3);
  display: inline-flex;
  align-items: center;
  gap: 5px;
}

.conn-live .status-dot { background: var(--good); }
.conn-connecting .status-dot { background: var(--warning); }
.conn-reconnecting .status-dot { background: var(--critical); }

.trace-list {
  list-style: none;
  overflow-y: auto;
  max-height: 320px;
  font-size: 12.5px;
  border-top: 1px solid var(--border);
}

.trace-row {
  display: flex;
  gap: 8px;
  align-items: baseline;
  padding: 6px 0;
  border-bottom: 1px solid var(--border);
}

.trace-time {
  font-family: var(--mono);
  font-size: 11px;
  color: var(--ink-3);
  flex-shrink: 0;
}

.badge {
  font-size: 10px;
  font-weight: 700;
  letter-spacing: 0.04em;
  border-radius: 3px;
  padding: 1px 6px;
  color: #fff;
  flex-shrink: 0;
}

.badge-router { background: var(--cat-1); }
.badge-tool { background: var(--accent-solid); }
.badge-result { background: var(--status-good); }
.badge-narration { background: var(--cat-7); }
.badge-error { background: var(--status-critical); }
.badge-other { background: var(--ink-3); }
/* REASONED (Stretch 3): a cited interpretation, not a fresh engine
   number — its own hue, distinct from badge-tool/badge-error. */
.badge-reasoned { background: var(--cat-5); }

.trace-body {
  min-width: 0;
  overflow-wrap: anywhere;
}

.trace-tool {
  font-family: var(--mono);
  font-size: 12px;
  color: var(--accent-text);
  margin-right: 6px;
}

.trace-args {
  font-family: var(--mono);
  font-size: 11.5px;
  color: var(--ink-2);
  margin-right: 6px;
}

/* -------------------------------------------------------------- copilot */

.copilot-grid {
  display: grid;
  grid-template-columns: 1.4fr 1fr;
  gap: 16px;
  align-items: start;
}

@media (max-width: 900px) {
  .copilot-grid { grid-template-columns: 1fr; }
}

.copilot-chat-col .chat-panel-full {
  min-height: 520px;
}

.copilot-side-col {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.audit-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  max-height: 320px;
  overflow-y: auto;
}

.audit-row {
  border-bottom: 1px solid var(--border);
}

.audit-row-head {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 7px 2px;
  cursor: pointer;
  font-size: 12px;
}

.audit-time {
  font-family: var(--mono);
  font-size: 11px;
  color: var(--ink-3);
  flex-shrink: 0;
}

.audit-question {
  flex: 1;
  min-width: 0;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  color: var(--ink);
}

.audit-toggle {
  color: var(--ink-3);
  flex-shrink: 0;
}

.audit-row-body {
  padding: 4px 2px 10px 22px;
}

.audit-answer {
  font-size: 12.5px;
  color: var(--ink-2);
  margin-bottom: 6px;
}

.audit-trace {
  font-family: var(--mono);
  font-size: 11px;
  background: var(--page);
  border: 1px solid var(--border);
  border-radius: 4px;
  padding: 8px;
  overflow-x: auto;
  max-height: 200px;
  overflow-y: auto;
  color: var(--ink-2);
}

/* ------------------------------------------------------------------ chat */

.chat-panel {
  display: flex;
  flex-direction: column;
}

.chat-log {
  flex: 1;
  overflow-y: auto;
  max-height: 340px;
  display: flex;
  flex-direction: column;
  gap: 8px;
  padding: 4px 0 10px;
}

.chat-panel-dock .chat-log {
  max-height: 260px;
}

.msg {
  border-radius: var(--radius-sm);
  padding: 8px 12px;
  max-width: 92%;
  font-size: 13.5px;
  line-height: 1.5;
}

.msg-user {
  align-self: flex-end;
  background: var(--accent-wash);
  color: var(--ink);
}

.msg-agent {
  align-self: flex-start;
  background: var(--panel-2);
  border: 1px solid var(--border);
  color: var(--ink);
}

.msg-error {
  align-self: flex-start;
  background: var(--panel-2);
  border: 1px solid var(--border);
  color: var(--ink);
}

.msg-refusal {
  align-self: flex-start;
  background: var(--panel-2);
  border: 1px solid var(--border);
  color: var(--ink-2);
}

.refusal-tag {
  display: inline-block;
  font-size: 10px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--ink-3);
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 3px;
  padding: 1px 6px;
  margin-bottom: 4px;
}

/* REASONED answer bubble: same shape as a grounded bubble, but its own
   accent-colored tag so it never reads as a fresh engine number. */
.msg-reasoned {
  border-color: var(--accent);
}

.reasoned-tag {
  display: inline-block;
  font-size: 10px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--accent-text);
  background: var(--accent-wash);
  border: 1px solid var(--accent);
  border-radius: 3px;
  padding: 1px 6px;
  margin-bottom: 4px;
}

.citations {
  margin-top: 6px;
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  align-items: baseline;
}

.citations-label {
  font-size: 11px;
  color: var(--ink-3);
}

.citation {
  font-family: var(--mono);
  font-size: 10.5px;
  background: var(--panel-2);
  border: 1px solid var(--border);
  border-radius: 3px;
  padding: 1px 6px;
  color: var(--accent-text);
  overflow-wrap: anywhere;
  display: inline-block;
  margin-top: 4px;
}

.chat-form {
  display: flex;
  gap: 8px;
  border-top: 1px solid var(--border);
  padding-top: 10px;
}

.chat-form input {
  flex: 1;
  font-size: 13.5px;
  padding: 7px 10px;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  background: var(--panel-2);
  color: var(--ink);
}

.chat-form input:focus {
  outline: 2px solid var(--accent);
  outline-offset: -1px;
}

.chat-form .btn {
  margin-top: 0;
  height: auto;
  padding: 7px 14px;
}

/* ------------------------------------------------------------- mini dock */

.mini-dock {
  position: fixed;
  right: 24px;
  bottom: 20px;
  z-index: 30;
  width: min(420px, 100vw - 48px);
}

.mini-dock-bar {
  display: flex;
  align-items: center;
  gap: 8px;
  background: var(--panel-2);
  border: 1px solid var(--border-strong);
  border-radius: var(--radius-pill);
  box-shadow: var(--shadow-e2);
  padding: 6px 6px 6px 14px;
  cursor: text;
}

.mini-dock-status {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 10px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  color: var(--ink-3);
  flex-shrink: 0;
}

.mini-dock-bar input {
  flex: 1;
  border: none;
  background: transparent;
  font-size: 13.5px;
  color: var(--ink);
  min-width: 0;
}
.mini-dock-bar input::placeholder { color: var(--ink-3); }

.mini-dock-send {
  width: 34px;
  height: 34px;
  border-radius: var(--radius-pill);
  border: none;
  background: var(--accent-solid);
  color: var(--accent-on-solid);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  flex-shrink: 0;
}
.mini-dock-send:disabled { opacity: 0.45; cursor: not-allowed; }

.mini-dock-panel {
  width: 100%;
  max-height: 60vh;
  display: flex;
  flex-direction: column;
  background: var(--panel-2);
  border: 1px solid var(--border-strong);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-e2);
  overflow: hidden;
  margin-bottom: 10px;
}

.mini-dock-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 10px 14px;
  background: var(--panel);
  border-bottom: 1px solid var(--border);
  font-size: 13px;
  font-weight: 600;
}

.mini-dock-close {
  border: none;
  background: transparent;
  color: var(--ink-3);
  font-size: 18px;
  line-height: 1;
  cursor: pointer;
  padding: 0 4px;
}

.mini-dock-panel .chat-panel {
  border: none;
  border-radius: 0;
  box-shadow: none;
  padding: 12px 14px;
  overflow-y: auto;
}

/* Narrow viewports: the dock collapses to a plain icon pill (FINAL_SPEC
   graft 5) so it never eats the input row on a phone-width screen. */
@media (max-width: 620px) {
  .mini-dock { right: 14px; bottom: 14px; width: auto; }
  .mini-dock-bar.collapsed-narrow input,
  .mini-dock-bar.collapsed-narrow .mini-dock-status { display: none; }
  .mini-dock-panel { width: min(360px, calc(100vw - 28px)); }
}

/* ----------------------------------------------------------- responsive */

@media (max-width: 640px) {
  .app-header { padding: 10px 14px; }
  .tab-nav { padding: 0 14px; gap: 16px; }
  .app-main { padding: 14px 14px 160px; }
}

/* ------------------------------------------- model-at-a-glance / method
   (dossier-v2 propagation: the ECL-formula index panel, the EAD & EIR
   method panel, and the Copilot "How grounding works" panel) */

.glance-formula {
  font-family: var(--mono, ui-monospace, monospace);
  font-size: 17px;
  color: var(--ink);
  text-align: center;
  padding: 10px 0 14px;
  letter-spacing: 0.02em;
}

.glance-terms {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.glance-term-head {
  display: flex;
  align-items: baseline;
  gap: 10px;
}

.glance-chip {
  font-family: var(--mono, ui-monospace, monospace);
  white-space: nowrap;
  flex: 0 0 auto;
  min-width: 92px;
  text-align: center;
}

.glance-term-text {
  font-size: 13px;
  color: var(--ink-2);
  line-height: 1.55;
}

.glance-term-text b { color: var(--ink); }

.glance-jump {
  color: var(--accent-text);
  text-decoration: none;
  white-space: nowrap;
  font-size: 12px;
}

.glance-jump:hover { text-decoration: underline; }

.glance-term-actions { margin-left: auto; flex: 0 0 auto; }

.method-p {
  font-size: 13px;
  color: var(--ink-2);
  line-height: 1.55;
  margin: 0 0 10px;
}

.method-p b { color: var(--ink); }

.method-formula { font-size: 14px; padding: 4px 0 10px; }

.frac {
  display: inline-flex;
  flex-direction: column;
  vertical-align: middle;
  text-align: center;
  margin: 0 4px;
}

.frac-top { padding: 0 6px 2px; border-bottom: 1px solid var(--ink-2); }
.frac-bot { padding: 2px 6px 0; }

.ground-steps {
  margin: 0 0 12px;
  padding-left: 20px;
  display: flex;
  flex-direction: column;
  gap: 8px;
  font-size: 13px;
  color: var(--ink-2);
  line-height: 1.55;
}

.ground-steps b { color: var(--ink); }

.ground-legend {
  border-top: 1px solid var(--border);
  padding-top: 10px;
  margin-bottom: 10px;
}

.ground-legend-row {
  font-size: 12.5px;
  color: var(--ink-2);
  margin: 0 0 6px;
}

.ground-legend-row b { color: var(--ink); letter-spacing: 0.04em; }

@media (max-width: 640px) {
  .glance-term-head { flex-wrap: wrap; }
}