/* =============================================================================
   app.css — Construction Takeoff Trust Engine
   Shared component library. Import AFTER tokens.css.

   Components: app-shell · top-bar · left-nav · band chip (4 bands) ·
   layer-legend strip · data table · status chips (Workflows vocab) · buttons ·
   drawer/panel · meter/progress · dual-overlay legend · co-registration badge ·
   HITL review card · LLM call-site block · forms · tabs · tooltip.

   Every component is colorblind-safe where it carries trust meaning:
   shape + label, never color alone.
   ============================================================================= */

/* Global: the HTML `hidden` attribute must always win over any author `display:`
   rule (prevents occluding overlays/skeletons/banners that set their own display). */
[hidden] { display: none !important; }

/* =============================================================================
   APP SHELL — grid: [topbar spanning] / [nav | main]
   shell.js injects .topbar and .nav; screen pages put content in <main class="main">.
   ============================================================================= */
.app {
  display: grid;
  grid-template-columns: var(--nav-w) 1fr;
  grid-template-rows: var(--topbar-h) 1fr;
  grid-template-areas:
    "topbar topbar"
    "nav    main";
  height: 100vh;
  width: 100%;
}
.app[data-nav="collapsed"] { grid-template-columns: var(--nav-w-collapsed) 1fr; }

.main {
  grid-area: main;
  overflow: auto;
  padding: var(--sp-6) var(--sp-7);
  min-width: 0;
}
.main--flush { padding: 0; } /* full-bleed workspaces (sheet viewer / graph) */

/* Screen header block (every screen opens with this) */
.screen-head {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: var(--sp-6);
  padding-bottom: var(--sp-5);
  margin-bottom: var(--sp-6);
  border-bottom: 1px solid var(--line-soft);
}
.screen-head__title {
  font-family: var(--font-display);
  font-size: var(--fs-2xl);
  font-weight: var(--fw-bold);
  letter-spacing: var(--ls-tight);
  line-height: var(--lh-tight);
  margin: 0;
}
.screen-head__kicker {
  font-family: var(--font-mono);
  font-size: var(--fs-xs);
  letter-spacing: var(--ls-label);
  text-transform: uppercase;
  color: var(--cyan);
  display: block;
  margin-bottom: var(--sp-3);
}
.screen-head__sub { color: var(--paper-mute); font-size: var(--fs-sm); margin: var(--sp-2) 0 0; }
.screen-head__actions { display: flex; gap: var(--sp-4); align-items: center; flex-shrink: 0; }

/* =============================================================================
   TOP BAR — brand · Project ▾ · Revision ▾ (4 keys) · Revision-diff · actor
   ============================================================================= */
.topbar {
  grid-area: topbar;
  display: flex;
  align-items: stretch;
  gap: 0;
  height: var(--topbar-h);
  background: linear-gradient(var(--ink-800), var(--ink-850));
  border-bottom: 1px solid var(--line);
  box-shadow: var(--sh-1);
  z-index: var(--z-topbar);
}
.topbar__brand {
  display: flex;
  align-items: center;
  gap: var(--sp-4);
  padding: 0 var(--sp-6);
  width: var(--nav-w);
  border-right: 1px solid var(--line-soft);
  flex-shrink: 0;
}
.topbar__mark {
  width: 24px; height: 24px; flex-shrink: 0;
  border: 1px solid var(--cyan-line);
  border-radius: var(--r-2);
  display: grid; place-items: center;
  color: var(--cyan);
  background: var(--cyan-ghost);
}
.topbar__name {
  font-family: var(--font-display);
  font-weight: var(--fw-bold);
  font-size: var(--fs-md);
  letter-spacing: var(--ls-tight);
  line-height: 1;
}
.topbar__name small {
  display: block;
  font-family: var(--font-mono);
  font-weight: var(--fw-reg);
  font-size: 9px;
  letter-spacing: var(--ls-label);
  text-transform: uppercase;
  color: var(--paper-mute);
  margin-top: 2px;
}
.topbar__scope {
  display: flex;
  align-items: center;
  gap: var(--sp-3);
  padding: 0 var(--sp-5);
  flex: 1;
  min-width: 0;
  overflow-x: auto;
}
.topbar__actor {
  display: flex;
  align-items: center;
  gap: var(--sp-3);
  padding: 0 var(--sp-5) 0 var(--sp-5);
  border-left: 1px solid var(--line-soft);
  flex-shrink: 0;
}

/* selector control (Project / Revision / actor dropdowns) */
.selector {
  display: inline-flex;
  align-items: center;
  gap: var(--sp-3);
  height: var(--ctrl-h);
  padding: 0 var(--sp-4);
  background: var(--ink-750);
  border: 1px solid var(--line);
  border-radius: var(--r-3);
  color: var(--paper-dim);
  font-size: var(--fs-sm);
  cursor: pointer;
  white-space: nowrap;
  transition: border-color var(--dur-1) var(--ease), background var(--dur-1) var(--ease);
}
.selector:hover { border-color: var(--line-strong); background: var(--ink-700); }
.selector__label {
  font-family: var(--font-display);
  font-size: 9px;
  letter-spacing: var(--ls-label);
  text-transform: uppercase;
  color: var(--paper-mute);
}
.selector__value { font-family: var(--font-mono); color: var(--paper); font-size: var(--fs-sm); }
.selector__caret { color: var(--paper-mute); font-size: 9px; }

/* Revision selector packs the 4 isolation keys */
.rev-keys {
  display: inline-flex;
  align-items: center;
  gap: var(--sp-4);
  height: var(--ctrl-h);
  padding: 0 var(--sp-5);
  background: var(--ink-750);
  border: 1px solid var(--cyan-line);
  border-radius: var(--r-3);
  cursor: pointer;
}
.rev-keys:hover { background: var(--ink-700); }
.rev-key { display: flex; flex-direction: column; line-height: 1.1; }
.rev-key b {
  font-family: var(--font-display);
  font-size: 8px;
  letter-spacing: var(--ls-label);
  text-transform: uppercase;
  color: var(--paper-mute);
  font-weight: var(--fw-semi);
}
.rev-key span { font-family: var(--font-mono); font-size: var(--fs-xs); color: var(--paper); }
.rev-key + .rev-key { padding-left: var(--sp-4); border-left: 1px solid var(--line-faint); }

.actor-dot {
  width: 20px; height: 20px; border-radius: var(--r-pill);
  background: var(--cyan-ghost);
  border: 1px solid var(--cyan-line);
  display: grid; place-items: center;
  font-family: var(--font-mono); font-size: 9px; color: var(--cyan-bright);
}

/* =============================================================================
   LEFT NAV — IA map from G.1, with the Review sub-section
   ============================================================================= */
.nav {
  grid-area: nav;
  background: var(--ink-800);
  border-right: 1px solid var(--line);
  overflow-y: auto;
  padding: var(--sp-5) var(--sp-4) var(--sp-7);
  display: flex;
  flex-direction: column;
  gap: var(--sp-2);
}
.nav__group-label {
  font-family: var(--font-display);
  font-size: 9px;
  letter-spacing: var(--ls-wide);
  text-transform: uppercase;
  color: var(--paper-faint);
  padding: var(--sp-5) var(--sp-4) var(--sp-3);
}
.nav__item {
  display: flex;
  align-items: center;
  gap: var(--sp-4);
  height: var(--row-h-loose);
  padding: 0 var(--sp-4);
  border-radius: var(--r-3);
  color: var(--paper-dim);
  font-size: var(--fs-sm);
  font-weight: var(--fw-med);
  cursor: pointer;
  border-left: 2px solid transparent;
  transition: background var(--dur-1) var(--ease), color var(--dur-1) var(--ease);
  position: relative;
}
.nav__item:hover { background: var(--ink-700); color: var(--paper); }
.nav__num {
  font-family: var(--font-mono);
  font-size: 10px;
  color: var(--paper-faint);
  min-width: 16px;
  text-align: right;
}
.nav__item.is-active {
  background: var(--cyan-ghost);
  color: var(--paper);
  border-left-color: var(--cyan);
}
.nav__item.is-active .nav__num { color: var(--cyan); }
.nav__item--child {
  height: var(--row-h);
  margin-left: var(--sp-6);
  font-size: var(--fs-sm);
  font-weight: var(--fw-reg);
  color: var(--paper-mute);
}
.nav__item--child::before {
  content: "";
  position: absolute;
  left: calc(-1 * var(--sp-4) - 2px);
  top: 0; bottom: 50%;
  width: 1px;
  background: var(--line-soft);
}
.nav__sub {
  display: flex;
  flex-direction: column;
  gap: var(--sp-1);
  position: relative;
  margin-left: var(--sp-2);
}
.nav__route {
  margin-left: auto;
  font-family: var(--font-mono);
  font-size: 9px;
  color: var(--paper-faint);
  opacity: 0;
  transition: opacity var(--dur-1) var(--ease);
}
.nav__item:hover .nav__route { opacity: 1; }
.nav__spacer { flex: 1; }
.nav__foot {
  font-family: var(--font-mono);
  font-size: 9px;
  color: var(--paper-faint);
  padding: var(--sp-4);
  border-top: 1px solid var(--line-faint);
  line-height: 1.5;
}

/* =============================================================================
   TRUST BAND CHIPS — colorblind-safe (color + shape glyph + text label)
   .band .band--green|amber|red|grey  ; shape via ::before glyph
   Use .band--dot for compact (table cells), .band for full chip with label.
   ============================================================================= */
.band {
  display: inline-flex;
  align-items: center;
  gap: var(--sp-3);
  height: var(--ctrl-h-sm);
  padding: 0 var(--sp-4) 0 var(--sp-3);
  border-radius: var(--r-2);
  font-family: var(--font-display);
  font-size: var(--fs-xs);
  font-weight: var(--fw-semi);
  letter-spacing: 0.02em;
  white-space: nowrap;
  border: 1px solid transparent;
}
/* the shape glyph — the colorblind-safe channel (mandatory everywhere) */
.band__glyph {
  font-size: 11px;
  line-height: 1;
  display: inline-grid;
  place-items: center;
  width: 14px;
  font-family: var(--font-mono);
}
.band__label { line-height: 1; }

.band--green { background: var(--band-green-soft); color: var(--band-green); border-color: var(--band-green-line); }
.band--amber { background: var(--band-amber-soft); color: var(--band-amber); border-color: var(--band-amber-line); }
.band--red   { background: var(--band-red-soft);   color: var(--band-red);   border-color: var(--band-red-line); }
.band--grey  { background: var(--band-grey-soft);  color: var(--band-grey);  border-color: var(--band-grey-line);
               border-style: dashed; } /* GREY hollow/dashed = "could not check", distinct from RED */

/* default glyphs per band (set in markup, fallback here via data-band) */
.band--green .band__glyph::before { content: "\25B2"; }  /* ▲ */
.band--amber .band__glyph::before { content: "\25C6"; }  /* ◆ */
.band--red   .band__glyph::before { content: "\2715"; }  /* ✕ in a square chip */
.band--grey  .band__glyph::before { content: "?"; }      /* ? */

/* compact dot form for dense table cells: shape + tiny label */
.band-dot {
  display: inline-flex;
  align-items: center;
  gap: var(--sp-2);
  font-family: var(--font-mono);
  font-size: var(--fs-xs);
}
.band-dot__mark {
  width: 13px; height: 13px;
  display: inline-grid; place-items: center;
  font-size: 10px; line-height: 1;
  flex-shrink: 0;
}
.band-dot--green { color: var(--band-green); }
.band-dot--amber { color: var(--band-amber); }
.band-dot--red   { color: var(--band-red); }
.band-dot--grey  { color: var(--band-grey); }
.band-dot--green .band-dot__mark::before { content: "\25B2"; }
.band-dot--amber .band-dot__mark::before { content: "\25C6"; }
.band-dot--red   .band-dot__mark::before { content: "\25A0"; } /* ■ filled square = checked-wrong */
.band-dot--grey  .band-dot__mark::before { content: "\25CC"; } /* ◌ dotted circle = could-not-check */

/* legend for the bands (used in panels/headers) */
.band-legend { display: flex; flex-wrap: wrap; gap: var(--sp-4); align-items: center; }

/* =============================================================================
   LAYER LEGEND STRIP — 4 chips: Drawing · Kamai-RAW · Derived · Final
   (the four-layer Decision G model, never collapsed)
   ============================================================================= */
.layer-legend {
  display: inline-flex;
  align-items: stretch;
  border: 1px solid var(--line-soft);
  border-radius: var(--r-3);
  overflow: hidden;
  background: var(--ink-750);
}
.layer-chip {
  display: flex;
  flex-direction: column;
  justify-content: center;
  gap: 1px;
  padding: var(--sp-3) var(--sp-5);
  border-left: 1px solid var(--line-faint);
  min-width: 0;
}
.layer-chip:first-child { border-left: none; }
.layer-chip__k {
  display: flex; align-items: center; gap: var(--sp-3);
  font-family: var(--font-display);
  font-size: 9px;
  letter-spacing: var(--ls-label);
  text-transform: uppercase;
  font-weight: var(--fw-semi);
  color: var(--paper-mute);
}
.layer-chip__swatch {
  width: 10px; height: 10px; border-radius: var(--r-1);
  flex-shrink: 0;
}
.layer-chip__v { font-family: var(--font-mono); font-size: var(--fs-xs); color: var(--paper); }
.layer-chip--drawing .layer-chip__swatch { background: var(--layer-drawing); }
.layer-chip--raw     .layer-chip__swatch { background: var(--layer-raw); border: 1px solid var(--ink-850); }
.layer-chip--derived .layer-chip__swatch { background: repeating-linear-gradient(45deg, var(--layer-derived) 0 2px, transparent 2px 4px); border: 1px dashed var(--cyan-line); }
.layer-chip--final   .layer-chip__swatch { background: var(--layer-final); }
.layer-chip--raw .layer-chip__k { color: var(--layer-raw); }
.layer-chip--raw .layer-chip__v::after { content: " · immutable"; color: var(--paper-faint); }

/* =============================================================================
   PANELS / CARDS
   ============================================================================= */
.panel {
  background: var(--ink-800);
  border: 1px solid var(--line-soft);
  border-radius: var(--r-4);
  box-shadow: var(--sh-1);
}
.panel__head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--sp-4);
  padding: var(--sp-4) var(--sp-5);
  border-bottom: 1px solid var(--line-soft);
}
.panel__title {
  font-family: var(--font-display);
  font-size: var(--fs-xs);
  font-weight: var(--fw-bold);
  letter-spacing: var(--ls-label);
  text-transform: uppercase;
  color: var(--paper-dim);
  margin: 0;
}
.panel__body { padding: var(--sp-5); }
.panel__body--flush { padding: 0; }

/* =============================================================================
   DATA TABLE — dense, right-aligned mono numerals, band cell, red-sorts-top
   ============================================================================= */
.table-wrap { overflow: auto; border: 1px solid var(--line-soft); border-radius: var(--r-4); }
table.dt {
  width: 100%;
  border-collapse: collapse;
  font-size: var(--fs-sm);
}
table.dt thead th {
  position: sticky;
  top: 0;
  z-index: 1;
  background: var(--ink-700);
  color: var(--paper-mute);
  font-family: var(--font-display);
  font-size: var(--fs-xs);
  font-weight: var(--fw-semi);
  letter-spacing: var(--ls-label);
  text-transform: uppercase;
  text-align: left;
  padding: var(--sp-3) var(--sp-5);
  border-bottom: 1px solid var(--line);
  white-space: nowrap;
  cursor: pointer;
  user-select: none;
}
table.dt thead th.num, table.dt td.num { text-align: right; font-family: var(--font-mono); }
table.dt thead th .sort-caret { color: var(--cyan); font-size: 8px; margin-left: var(--sp-2); }
table.dt tbody td {
  padding: 0 var(--sp-5);
  height: var(--row-h);
  border-bottom: 1px solid var(--line-faint);
  color: var(--paper-dim);
  white-space: nowrap;
}
table.dt tbody td.num { color: var(--paper); font-variant-numeric: tabular-nums; }
table.dt tbody tr { transition: background var(--dur-1) var(--ease); cursor: pointer; }
table.dt tbody tr:hover { background: var(--ink-700); }
table.dt tbody tr.is-selected { background: var(--cyan-ghost); box-shadow: inset 2px 0 0 var(--cyan); }
table.dt tbody tr.is-selected td { color: var(--paper); }

/* red rows sort to top + carry a left alarm rule */
table.dt tbody tr.row-red    { box-shadow: inset 2px 0 0 var(--band-red); background: var(--band-red-soft); }
table.dt tbody tr.row-red:hover { background: rgba(229,82,77,0.24); }
table.dt tbody tr.row-grey td { color: var(--paper-mute); }

/* density modifier */
table.dt.dt--xdense tbody td { height: 26px; }
table.dt.dt--xdense tbody td, table.dt.dt--xdense thead th { padding-top: var(--sp-2); padding-bottom: var(--sp-2); }

/* delta cell (detected vs accepted) */
.delta { font-family: var(--font-mono); }
.delta--pos { color: var(--band-green); }
.delta--neg { color: var(--band-red); }
.delta--zero { color: var(--paper-faint); }

/* =============================================================================
   STATUS CHIPS — Cloudflare Workflows vocab (Run View, mapped 1:1 to U8)
   queued · running · paused · waiting · errored · complete · terminated
   ============================================================================= */
.status {
  display: inline-flex;
  align-items: center;
  gap: var(--sp-3);
  height: var(--ctrl-h-sm);
  padding: 0 var(--sp-4) 0 var(--sp-3);
  border-radius: var(--r-2);
  font-family: var(--font-mono);
  font-size: var(--fs-xs);
  letter-spacing: 0.02em;
  text-transform: lowercase;
  border: 1px solid var(--line-soft);
  background: var(--ink-700);
  color: var(--paper-dim);
  white-space: nowrap;
}
.status__led {
  width: 7px; height: 7px; border-radius: var(--r-pill);
  flex-shrink: 0;
  background: currentColor;
}
.status--queued    { color: var(--st-queued); }
.status--running   { color: var(--st-running);   border-color: var(--cyan-line); background: var(--cyan-ghost); }
.status--paused    { color: var(--st-paused);    border-color: var(--band-amber-line); }
.status--waiting   { color: var(--st-waiting);   border-color: rgba(176,127,214,0.4); background: rgba(176,127,214,0.12); }
.status--errored   { color: var(--st-errored);   border-color: var(--band-red-line); background: var(--band-red-soft); }
.status--complete  { color: var(--st-complete);  border-color: var(--band-green-line); }
.status--terminated{ color: var(--st-terminated); }
/* running LED pulses to read as "live" (always-on progress, G.8) */
.status--running .status__led { animation: pulse 1.3s var(--ease) infinite; }
@keyframes pulse { 0%,100% { opacity: 1; } 50% { opacity: 0.3; } }

/* =============================================================================
   BUTTONS — primary / ghost / danger
   ============================================================================= */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--sp-3);
  height: var(--ctrl-h);
  padding: 0 var(--sp-5);
  border-radius: var(--r-3);
  font-family: var(--font-display);
  font-size: var(--fs-sm);
  font-weight: var(--fw-semi);
  letter-spacing: 0.01em;
  cursor: pointer;
  border: 1px solid transparent;
  background: transparent;
  color: var(--paper);
  transition: background var(--dur-1) var(--ease), border-color var(--dur-1) var(--ease), color var(--dur-1) var(--ease);
  white-space: nowrap;
}
.btn:disabled, .btn[aria-disabled="true"] { opacity: 0.4; cursor: not-allowed; }
.btn--sm { height: var(--ctrl-h-sm); padding: 0 var(--sp-4); font-size: var(--fs-xs); }
.btn--primary { background: var(--cyan); color: var(--ink-900); border-color: var(--cyan); font-weight: var(--fw-bold); }
.btn--primary:hover:not(:disabled) { background: var(--cyan-bright); }
.btn--ghost { background: var(--ink-750); border-color: var(--line); color: var(--paper-dim); }
.btn--ghost:hover:not(:disabled) { border-color: var(--line-strong); background: var(--ink-700); color: var(--paper); }
.btn--danger { background: var(--band-red-soft); border-color: var(--band-red-line); color: var(--band-red); }
.btn--danger:hover:not(:disabled) { background: rgba(229,82,77,0.28); }
.btn--approve { background: var(--band-green-soft); border-color: var(--band-green-line); color: var(--band-green); }
.btn--approve:hover:not(:disabled) { background: rgba(70,192,138,0.28); }

/* icon button */
.icon-btn {
  width: var(--ctrl-h); height: var(--ctrl-h);
  display: grid; place-items: center;
  border-radius: var(--r-3);
  border: 1px solid var(--line);
  background: var(--ink-750);
  color: var(--paper-dim);
  cursor: pointer;
}
.icon-btn:hover { border-color: var(--line-strong); color: var(--paper); }

/* =============================================================================
   FORMS / INPUTS
   ============================================================================= */
.field { display: flex; flex-direction: column; gap: var(--sp-3); }
.field__label {
  font-family: var(--font-display);
  font-size: var(--fs-xs);
  letter-spacing: var(--ls-label);
  text-transform: uppercase;
  color: var(--paper-mute);
  font-weight: var(--fw-semi);
}
.input, .select {
  height: var(--ctrl-h);
  padding: 0 var(--sp-4);
  background: var(--ink-850);
  border: 1px solid var(--line);
  border-radius: var(--r-3);
  color: var(--paper);
  font-family: var(--font-mono);
  font-size: var(--fs-sm);
}
.input::placeholder { color: var(--paper-faint); }
.input:focus, .select:focus { border-color: var(--cyan); }

/* =============================================================================
   METER / PROGRESS — coverage / completeness + determinate step-state (G.8)
   ============================================================================= */
.meter {
  height: 8px;
  background: var(--ink-650);
  border: 1px solid var(--line-faint);
  border-radius: var(--r-pill);
  overflow: hidden;
  position: relative;
}
.meter__fill {
  height: 100%;
  background: linear-gradient(90deg, var(--cyan-dim), var(--cyan));
  border-radius: var(--r-pill);
  transition: width var(--dur-3) var(--ease);
}
.meter--green .meter__fill { background: linear-gradient(90deg, #2c8161, var(--band-green)); }
.meter--amber .meter__fill { background: linear-gradient(90deg, #9c6f1e, var(--band-amber)); }
.meter__track-mark { position: absolute; top: -2px; bottom: -2px; width: 1px; background: var(--paper-faint); }

.meter-row {
  display: grid;
  grid-template-columns: auto 1fr auto;
  align-items: center;
  gap: var(--sp-4);
  font-size: var(--fs-xs);
}
.meter-row__label { font-family: var(--font-display); letter-spacing: var(--ls-label); text-transform: uppercase; color: var(--paper-mute); }
.meter-row__val { font-family: var(--font-mono); color: var(--paper); }

/* indeterminate-but-anchored step progress (never a bare spinner) */
.progress-steps { display: flex; align-items: center; gap: var(--sp-3); font-family: var(--font-mono); font-size: var(--fs-xs); color: var(--paper-mute); }
.progress-steps b { color: var(--cyan); }

/* =============================================================================
   DUAL-OVERLAY LEGEND — RAW solid/no-fill/square vs DERIVED dashed/hatch/round
   (always visible on the sheet canvas — Screen 3 / 7)
   ============================================================================= */
.overlay-legend {
  display: inline-flex;
  flex-direction: column;
  gap: var(--sp-3);
  padding: var(--sp-4) var(--sp-5);
  background: rgba(7,9,13,0.82);
  backdrop-filter: blur(4px);
  border: 1px solid var(--line);
  border-radius: var(--r-4);
  font-size: var(--fs-xs);
}
.overlay-legend__row { display: flex; align-items: center; gap: var(--sp-4); }
.overlay-legend__swatch { width: 30px; height: 14px; flex-shrink: 0; display: inline-block; position: relative; }
/* RAW: solid stroke box, no fill, square vertex */
.overlay-legend__swatch--raw {
  border: 1.5px solid var(--raw-stroke);
}
.overlay-legend__swatch--raw::after {
  content: ""; position: absolute; left: -3px; top: -3px;
  width: 5px; height: 5px; background: var(--raw-vertex); border: 1px solid var(--ink-900);
}
/* DERIVED: dashed stroke, diagonal hatch fill, round vertex */
.overlay-legend__swatch--derived {
  border: 1.5px dashed var(--derived-stroke);
  background: repeating-linear-gradient(45deg, var(--derived-hatch) 0 1.5px, transparent 1.5px 5px);
}
.overlay-legend__swatch--derived::after {
  content: ""; position: absolute; left: -4px; top: -4px;
  width: 7px; height: 7px; border-radius: var(--r-pill);
  background: var(--derived-vertex); border: 1px solid var(--ink-900);
}
.overlay-legend__label { color: var(--paper-dim); }
.overlay-legend__label b { color: var(--paper); font-weight: var(--fw-semi); }
.overlay-legend__label small { display:block; color: var(--paper-faint); font-family: var(--font-mono); font-size: 9px; }

/* overlay state glyphs (confirmed ✓ / proposed · / rejected ✕) */
.ovl-state { font-family: var(--font-mono); font-size: var(--fs-xs); }
.ovl-state--confirmed { color: var(--band-green); }
.ovl-state--proposed  { color: var(--cyan); }
.ovl-state--rejected  { color: var(--paper-faint); text-decoration: line-through; }

/* =============================================================================
   CO-REGISTRATION WARNING BADGE — "⚠ geo-alignment degraded (not co-registered)"
   ============================================================================= */
.coreg-warn {
  display: inline-flex;
  align-items: center;
  gap: var(--sp-3);
  padding: var(--sp-3) var(--sp-4);
  background: var(--band-amber-soft);
  border: 1px solid var(--band-amber-line);
  border-radius: var(--r-3);
  color: var(--band-amber);
  font-family: var(--font-mono);
  font-size: var(--fs-xs);
  font-weight: var(--fw-med);
}
.coreg-warn__icon { font-size: 12px; }
/* degraded-positional halo applied to a derived overlay shape */
.ovl-degraded { filter: drop-shadow(0 0 4px var(--warn-halo)); }

/* =============================================================================
   DRAWER / SIDE PANEL — Item Trust Detail (Screen 5), review cards
   shell.js toggles [data-open]
   ============================================================================= */
.drawer-scrim {
  position: fixed; inset: 0;
  background: rgba(3,5,8,0.55);
  z-index: var(--z-overlay);
  opacity: 0; visibility: hidden;
  transition: opacity var(--dur-2) var(--ease), visibility var(--dur-2);
}
.drawer-scrim[data-open="true"] { opacity: 1; visibility: visible; }
.drawer {
  position: fixed; top: 0; right: 0; bottom: 0;
  width: 440px; max-width: 92vw;
  background: var(--ink-800);
  border-left: 1px solid var(--line);
  box-shadow: var(--sh-drawer);
  z-index: var(--z-drawer);
  transform: translateX(100%);
  transition: transform var(--dur-3) var(--ease);
  display: flex; flex-direction: column;
}
.drawer[data-open="true"] { transform: translateX(0); }
.drawer__head {
  display: flex; align-items: center; justify-content: space-between;
  gap: var(--sp-4);
  padding: var(--sp-5) var(--sp-6);
  border-bottom: 1px solid var(--line);
}
.drawer__title { font-family: var(--font-display); font-weight: var(--fw-bold); font-size: var(--fs-lg); margin: 0; }
.drawer__body { padding: var(--sp-6); overflow-y: auto; flex: 1; }
.drawer__foot { padding: var(--sp-5) var(--sp-6); border-top: 1px solid var(--line); display: flex; gap: var(--sp-4); justify-content: flex-end; }

/* =============================================================================
   HITL REVIEW CARD — durable-interrupt; Approve / Reject / Edit + actor+timestamp
   ============================================================================= */
.review-card {
  border: 1px solid var(--st-waiting);
  border-left-width: 3px;
  border-radius: var(--r-4);
  background: linear-gradient(var(--ink-750), var(--ink-800));
  padding: var(--sp-5);
}
.review-card__head { display: flex; align-items: center; gap: var(--sp-4); margin-bottom: var(--sp-4); }
.review-card__actions { display: flex; gap: var(--sp-3); margin-top: var(--sp-5); }
.review-card__meta { font-family: var(--font-mono); font-size: 9px; color: var(--paper-faint); margin-top: var(--sp-4); }

/* =============================================================================
   LLM CALL-SITE BLOCK — "LLM proposes → gate decides → human decides" (G.2)
   one block, three lanes, always labeled. + the biased-suggestion chip.
   ============================================================================= */
.llm-chain {
  display: grid;
  grid-template-columns: 1fr auto 1fr auto 1fr;
  align-items: stretch;
  gap: var(--sp-3);
  border: 1px solid var(--line-soft);
  border-radius: var(--r-4);
  background: var(--ink-750);
  padding: var(--sp-4);
}
.llm-lane { padding: var(--sp-4); border-radius: var(--r-3); background: var(--ink-800); border: 1px solid var(--line-faint); }
.llm-lane__k { font-family: var(--font-display); font-size: 9px; letter-spacing: var(--ls-label); text-transform: uppercase; font-weight: var(--fw-semi); margin-bottom: var(--sp-3); display:flex; align-items:center; gap: var(--sp-3); }
.llm-lane--propose .llm-lane__k { color: var(--st-waiting); }
.llm-lane--gate    .llm-lane__k { color: var(--cyan); }
.llm-lane--human   .llm-lane__k { color: var(--band-green); }
.llm-arrow { align-self: center; color: var(--paper-faint); font-family: var(--font-mono); }
.llm-badge {
  display: inline-flex; align-items: center; gap: var(--sp-2);
  padding: var(--sp-1) var(--sp-3);
  border-radius: var(--r-2);
  font-family: var(--font-mono); font-size: 9px;
  background: rgba(176,127,214,0.14); color: var(--st-waiting);
  border: 1px solid rgba(176,127,214,0.4);
}
.llm-badge--biased { background: var(--band-amber-soft); color: var(--band-amber); border-color: var(--band-amber-line); }
.llm-badge--schema { background: var(--cyan-ghost); color: var(--cyan); border-color: var(--cyan-line); }

/* =============================================================================
   TABS — Review sub-section tabs / drawer tabs
   ============================================================================= */
.tabs { display: flex; gap: var(--sp-1); border-bottom: 1px solid var(--line-soft); }
.tab {
  padding: var(--sp-4) var(--sp-5);
  font-family: var(--font-display);
  font-size: var(--fs-sm);
  font-weight: var(--fw-semi);
  color: var(--paper-mute);
  cursor: pointer;
  border-bottom: 2px solid transparent;
  margin-bottom: -1px;
  white-space: nowrap;
}
.tab:hover { color: var(--paper); }
.tab.is-active { color: var(--paper); border-bottom-color: var(--cyan); }
.tab__count { font-family: var(--font-mono); font-size: 9px; color: var(--paper-faint); margin-left: var(--sp-2); }
.tabpanel { display: none; }
.tabpanel.is-active { display: block; }

/* =============================================================================
   TOOLTIP — hover (wired by shell.js via [data-tip])
   ============================================================================= */
.tip {
  position: fixed;
  z-index: var(--z-tooltip);
  background: var(--ink-700);
  border: 1px solid var(--line-strong);
  border-radius: var(--r-3);
  padding: var(--sp-3) var(--sp-4);
  font-family: var(--font-mono);
  font-size: var(--fs-xs);
  color: var(--paper);
  box-shadow: var(--sh-2);
  pointer-events: none;
  max-width: 280px;
  opacity: 0;
  transform: translateY(2px);
  transition: opacity var(--dur-1) var(--ease), transform var(--dur-1) var(--ease);
}
.tip[data-show="true"] { opacity: 1; transform: translateY(0); }

/* =============================================================================
   WIRE ANNOTATION — every interactive element carries data-wire="VERB /route (U#)".
   In a dev/annotated mode (<body data-wire-show="true">) we surface them as a
   faint mono tag so reviewers can see the backing route without inspecting DOM.
   ============================================================================= */
[data-wire] { position: relative; }
body[data-wire-show="true"] [data-wire]::after {
  content: attr(data-wire);
  position: absolute;
  bottom: 100%;
  left: 0;
  font-family: var(--font-mono);
  font-size: 8px;
  letter-spacing: 0.02em;
  color: var(--cyan-dim);
  background: var(--ink-900);
  border: 1px solid var(--cyan-line);
  border-radius: var(--r-1);
  padding: 0 3px;
  white-space: nowrap;
  pointer-events: none;
  opacity: 0.85;
  z-index: var(--z-tooltip);
}

/* =============================================================================
   UTILITIES
   ============================================================================= */
.row { display: flex; align-items: center; gap: var(--sp-4); }
.row--between { justify-content: space-between; }
.col { display: flex; flex-direction: column; gap: var(--sp-4); }
.grow { flex: 1; min-width: 0; }
.divider { height: 1px; background: var(--line-soft); border: 0; margin: var(--sp-5) 0; }
.divider--v { width: 1px; align-self: stretch; background: var(--line-soft); }
.muted { color: var(--paper-mute); }
.faint { color: var(--paper-faint); }
.kbd {
  font-family: var(--font-mono); font-size: 9px;
  padding: 1px 4px; border-radius: var(--r-1);
  border: 1px solid var(--line); background: var(--ink-700); color: var(--paper-dim);
}
.tag {
  display: inline-flex; align-items: center; gap: var(--sp-2);
  font-family: var(--font-mono); font-size: 9px;
  padding: 1px var(--sp-3); border-radius: var(--r-2);
  border: 1px solid var(--line-soft); color: var(--paper-mute);
  text-transform: uppercase; letter-spacing: 0.04em;
}
.tag--immutable { color: var(--layer-raw); border-color: var(--line); }
.tag--immutable::before { content: "\25A3"; font-size: 9px; line-height: 1; margin-right: 3px; } /* ▣ write-once mark — geometric, not emoji */