/* KNB framework demo - light theme, KNB palette */

:root {
  /* KNB brand */
  --knb-dark:    #551D3E;   /* main */
  --knb-mid:     #A13775;   /* lighter variant */
  --knb-light:   #DFA0C4;   /* light variant */
  --knb-lightest:#F2D9E8;   /* lightest variant */
  --knb-lightest-tx: rgba(242,217,232,0.75);

  /* greys */
  --grey-3: #999999;
  --grey-2: #CCCCCC;
  --grey-1: #E6E6E6;

  /* surface */
  --bg:   #ffffff;
  --bg-1: #fafafa;
  --bg-2: #f5f5f5;
  --bg-3: #eeeeee;
  --bg-4: #e6e6e6;
  --line: #E6E6E6;
  --line-2: #CCCCCC;

  /* text */
  --fg:   #000000;
  --fg-2: #444444;
  --fg-3: #999999;
  --fg-4: #bfbfbf;

  /* accents */
  --accent:    var(--knb-dark);
  --accent-2:  var(--knb-mid);

  /* layer colors - all wine variants */
  --layer-reg:        #444444;          /* layer 1 - grey, "raw" */
  --layer-reg-bg:     #fafafa;
  --layer-logic:      var(--knb-mid);   /* layer 2 - mid wine */
  --layer-logic-bg:   #fbf3f7;
  --layer-inst:       var(--knb-dark);  /* layer 3 - deepest, accountability */
  --layer-inst-bg:    #f7ecf1;

  /* org */
  --org-notary:   #555555;
  --org-knb:      var(--knb-dark);
  --org-external: var(--knb-mid);

  /* severity - encoded by depth, palette-aligned */
  --sev-2: #000000;            /* critical - pure black */
  --sev-3: var(--knb-dark);    /* error */
  --sev-4: var(--knb-mid);     /* warning */
  --sev-5: var(--grey-3);      /* notice */
  --sev-6: var(--grey-2);      /* info */

  --ok:   var(--knb-dark);
  --bad:  #000000;
  --warn: var(--knb-mid);

  --mono: "JetBrains Mono", "IBM Plex Mono", "SF Mono", Menlo, Consolas, monospace;
  --sans: "Inter", system-ui, -apple-system, "Helvetica Neue", sans-serif;
}

* { box-sizing: border-box; }
html, body, #root {
  margin: 0; padding: 0; height: 100%;
  background: var(--bg);
  color: var(--fg);
  font-family: var(--mono);
  font-size: 12px;
  line-height: 1.45;
  -webkit-font-smoothing: antialiased;
}
button { font-family: var(--mono); }
::selection { background: var(--knb-lightest); color: var(--knb-dark); }

.app { display: grid; grid-template-rows: auto 1fr auto; height: 100vh; min-height: 760px; }
.app-footer { text-align: center; padding: 8px 24px; font-family: var(--mono); font-size: 0.8rem; color: #999999; border-top: 1px solid var(--line); }
.grid {
  display: grid;
  grid-template-columns: 280px 1fr 320px;
  gap: 0;
  background: var(--bg);
  overflow: hidden;
}
/* Pin each panel to a fixed column so the center keeps a constant width and
   never shifts when a single sidebar is toggled - a hidden sidebar just leaves
   an empty gutter. */
.grid > .left-rail  { grid-column: 1; border-right: 1px solid var(--line); }
.grid > .center     { grid-column: 2; }
.grid > .right-rail { grid-column: 3; border-left: 1px solid var(--line); }
/* "Expand center view": let the center grow into whatever sidebar gutters are
   currently empty (left and/or right). */
.grid.expand-mid.no-left           > .center { grid-column: 1 / 3; }
.grid.expand-mid.no-right          > .center { grid-column: 2 / 4; }
.grid.expand-mid.no-left.no-right  > .center { grid-column: 1 / 4; }
.grid > * { background: var(--bg); overflow: auto; }

/* Control bar */
.control-bar {
  display: grid;
  grid-template-columns: auto 1fr auto;
  gap: 18px;
  align-items: stretch;
  padding: 10px 14px;
  background: #ffffff;
  border-bottom: 1px solid var(--line-2);
}
.cb-left { display: flex; flex-direction: column; gap: 6px; justify-content: center; }
.cb-brand { display: flex; align-items: center; gap: 8px; }
.cb-title { font-weight: 700; letter-spacing: 0.08em; font-size: 11px; color: var(--knb-dark); text-transform: uppercase; }

.cb-scenario { display: flex; align-items: center; gap: 6px; }
.cb-scenario .lbl { color: var(--fg-3); text-transform: lowercase; font-size: 10px; }
.cb-scenario select {
  background: #ffffff; color: var(--fg); border: 1px solid var(--line-2);
  font-family: var(--mono); font-size: 11px; padding: 3px 6px; border-radius: 2px;
}

.cb-narration {
  background: var(--knb-lightest-tx);
  border: 1px solid var(--knb-light);
  border-radius: 2px;
  padding: 6px 10px;
  display: flex; flex-direction: column; gap: 2px;
  min-width: 0;
  /* Don't stretch to the control-bar row height; size to content so the box
     collapses to one line when the narration is hidden (expanded-text off). */
  align-self: center;
}
.cb-step { display: flex; align-items: center; gap: 8px; font-size: 10.5px; }
.cb-stepnum { color: var(--knb-dark); font-weight: 700; letter-spacing: 0.05em; }
.cb-stepsep { color: var(--knb-light); }
.cb-steptitle { color: var(--fg); font-weight: 600; }
.cb-text {
  font-family: var(--sans);
  font-size: 11.5px;
  color: var(--fg-2);
  line-height: 1.4;
  /* Always reserve exactly two lines so the bar height never shifts between
     short and long step narrations. */
  display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden;
  height: 2.8em; min-height: 2.8em;
}

.cb-right { display: flex; gap: 6px; align-items: center; }
.btn-stack { display: flex; flex-direction: column; gap: 4px; }
.btn-stack .btn { width: 100%; text-align: center; }
.btn {
  background: #ffffff; color: var(--fg);
  border: 1px solid var(--line-2);
  padding: 6px 10px; border-radius: 2px;
  font-size: 11px; cursor: pointer;
  font-family: var(--mono);
  white-space: nowrap;
}
.btn:hover { border-color: var(--knb-dark); color: var(--knb-dark); }
.btn:disabled { opacity: 0.35; cursor: not-allowed; }
.btn.on { background: var(--knb-dark); color: #ffffff; border-color: var(--knb-dark); }
.btn-primary { background: var(--knb-dark); color: #ffffff; border-color: var(--knb-dark); font-weight: 600; }
.btn-primary:hover { background: var(--knb-mid); border-color: var(--knb-mid); color: #ffffff; }


/* LEFT RAIL */
.left-rail { padding: 10px; display: flex; flex-direction: column; gap: 10px; }

.org-panel { border: 1px solid var(--line-2); background: #ffffff; border-radius: 2px; }
.org-panel header {
  display: flex; align-items: center; gap: 8px; padding: 8px 10px;
  border-bottom: 1px solid transparent;
}
.org-panel.open header { border-bottom-color: var(--line); }
.org-bar { width: 3px; align-self: stretch; border-radius: 2px; }
.org-notary .org-bar  { background: var(--org-notary); }
.org-knb .org-bar     { background: var(--org-knb); }
.org-external .org-bar { background: var(--org-external); }
.org-title { flex: 1; }
.org-title .t { font-weight: 600; font-size: 12px; }
.org-title .s { font-size: 10px; color: var(--fg-3); }

.org-body { padding: 8px 10px 10px; display: flex; flex-direction: column; gap: 10px; }

.actor-row { display: flex; align-items: center; gap: 5px; flex-wrap: wrap; padding-bottom: 6px; border-bottom: 1px dashed var(--line); }
.actor-row .lbl { color: var(--fg-3); font-size: 10px; }
.chip-actor {
  font-size: 10px; padding: 2px 6px; border: 1px solid var(--line-2);
  border-radius: 10px; color: var(--fg-3); background: #ffffff;
}
.chip-actor.on { background: var(--knb-dark); color: #ffffff; border-color: var(--knb-dark); font-weight: 600; }

.subsys { border: 1px solid var(--line); border-radius: 2px; padding: 7px 8px; background: var(--bg-1); }
.subsys.inline { padding: 6px 8px; }
.subsys-head { display: flex; align-items: center; gap: 6px; }
.subsys-name { font-weight: 600; font-size: 11.5px; }
.subsys-sub { font-size: 10px; color: var(--fg-3); margin-top: 2px; line-height: 1.35; }
.subsys-actions { margin-top: 6px; display: flex; flex-wrap: wrap; gap: 4px; }
.action-chip { font-size: 10px; padding: 2px 5px; background: #ffffff; border: 1px solid var(--line-2); color: var(--fg-2); border-radius: 2px; white-space: nowrap; }

.knb-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 6px; }

/* CENTER */
.error-boundary { margin: 16px; padding: 14px 16px; border: 1px solid #000; border-left: 3px solid #000; background: #fff; border-radius: 2px; }
.eb-title { font-weight: 700; font-size: 12px; color: #000; margin-bottom: 6px; }
.eb-msg { font-family: var(--mono); font-size: 11.5px; color: #000; background: var(--knb-lightest); padding: 6px 8px; border-radius: 2px; }
.eb-stack { font-family: var(--mono); font-size: 10px; color: var(--fg-2); white-space: pre-wrap; max-height: 220px; overflow: auto; margin: 8px 0 0; }
.eb-hint { font-family: var(--sans); font-size: 11px; color: var(--fg-3); margin-top: 8px; }

.center { padding: 12px; display: flex; flex-direction: column; gap: 12px; }
.center-title {
  font-weight: 700; letter-spacing: 0.1em; text-transform: uppercase;
  font-size: 11px; color: var(--knb-dark); margin: 4px 0 -4px 2px;
}

.three-layer { display: flex; flex-direction: column; gap: 0; }
.band { border: 1px solid var(--line-2); background: #ffffff; border-radius: 2px; }
.band-reg   { background: var(--layer-reg-bg);   border-color: var(--line-2); }
.band-logic { background: var(--layer-logic-bg); border-color: var(--knb-light); }
.band-inst  { background: var(--layer-inst-bg);  border-color: var(--knb-light); }

.band-head {
  display: flex; align-items: center; gap: 10px;
  padding: 7px 12px;
  border-bottom: 1px solid var(--line);
  background: #ffffff;
  cursor: pointer; user-select: none;
}
.band.collapsed .band-head { border-bottom-color: transparent; }
.band-caret { font-size: 15px; line-height: 1; color: var(--knb-dark); width: 16px; text-align: center; transition: color 0.1s; }
.band-head:hover .band-caret { color: var(--knb-mid); }
.band-label { font-weight: 700; letter-spacing: 0.1em; font-size: 10.5px; }
.band-reg .band-label   { color: var(--layer-reg); }
.band-logic .band-label { color: var(--layer-logic); }
.band-inst .band-label  { color: var(--layer-inst); }
.band-sub { font-size: 10px; color: var(--fg-3); flex: 1; }
.band-count { font-size: 10px; color: var(--fg-3); margin-left: auto; }

.band-body { padding: 8px 10px; min-height: 38px; }

.empty { color: var(--fg-3); font-size: 10.5px; text-align: center; padding: 6px 0; letter-spacing: 0.05em; }

/* gate between bands */
.gate {
  display: flex; align-items: center; gap: 10px;
  padding: 6px 14px;
  background: #ffffff;
  border-left: 1px solid var(--line-2);
  border-right: 1px solid var(--line-2);
}
.gate-label {
  font-size: 10.5px; font-weight: 700; letter-spacing: 0.12em;
  color: var(--fg-2);
}
.gate-pass .gate-label { color: var(--knb-dark); }
.gate-fail .gate-label { color: #000000; }
.gate-conds { display: flex; gap: 8px; font-size: 10px; flex-wrap: wrap; flex: 1; }
.cond.ok { color: var(--knb-dark); }
.cond.bad { color: #000000; font-weight: 700; }
.gate-status {
  font-size: 10px; padding: 2px 6px; border-radius: 2px;
  background: var(--knb-lightest); color: var(--knb-dark);
  letter-spacing: 0.08em; font-weight: 700;
}
.gate-fail .gate-status { background: #000000; color: #ffffff; }
.gate-dir { color: var(--fg-2); font-size: 10.5px; font-family: var(--sans); }
.gate-summary { color: var(--knb-dark); font-weight: 700; font-size: 10.5px; }
.gate-count { color: var(--fg-3); font-size: 10.5px; margin-left: auto; }
.gate-fail .gate-conds { flex: 0 0 auto; }
.gate-note { color: #000000; font-size: 10.5px; font-style: italic; }

/* Attribute block in entry expanders (Logic / Institutional) */
.attr-block {
  display: grid; grid-template-columns: max-content 1fr;
  gap: 3px 12px; padding: 6px 10px; margin: 4px 0 6px 18px;
  background: #fafafa; border-left: 2px solid var(--knb-mid);
  font-family: var(--sans); font-size: 10px;
}
.attr-k { color: var(--fg-3); text-transform: uppercase; letter-spacing: 0.06em; font-size: 9.5px; align-self: center; }
.attr-v { color: var(--fg); font-family: var(--mono); font-size: 10.5px; }

/* Shared layer tables. The caret/id/name spine (20px · 56px · 200px) is the
   same in all three layers so the left columns line up vertically; the rest of
   each layer's columns are its own. */
.ltable { display: flex; flex-direction: column; gap: 2px; }
.lhead, .lrow { display: grid; align-items: center; gap: 8px; font-size: 10.5px; }
.lhead {
  color: var(--fg-3); font-size: 9.5px; text-transform: uppercase; letter-spacing: 0.08em;
  border-bottom: 1px dashed var(--line-2); padding: 2px 8px 5px;
}
.lentry { display: flex; flex-direction: column; }
.lrow { padding: 5px 8px; border-radius: 2px; cursor: pointer; }
.lrow:hover { background: var(--knb-lightest-tx); }
.lrow.sel { background: var(--knb-lightest); outline: 1px solid var(--knb-light); }

.lhead-inst,  .lrow-inst  { grid-template-columns: 20px 56px 200px 1fr 1.4fr; }
.lhead-logic, .lrow-logic { grid-template-columns: 20px 56px 200px 1.2fr 90px 1.4fr; }
.lhead-reg,   .lrow-reg   { grid-template-columns: 20px 56px 200px 66px 132px 110px 1.4fr 1.2fr; }

.expander { color: var(--knb-dark); cursor: pointer; user-select: none; font-size: 11px; justify-self: center; }
.action-name, .fact-name, .ev-type { font-weight: 600; color: var(--fg); overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.lrow-logic .action-name { color: var(--layer-logic); }
.lrow-inst .fact-name { color: var(--layer-inst); }
.entry-id { font-size: 10.5px; padding: 1px 5px; border: 1px solid var(--line); border-radius: 2px; background: var(--bg-1); justify-self: start; }
.meta { color: var(--fg-3); font-size: 10.5px; }
.actor-pill { color: var(--fg); background: var(--bg-3); padding: 1px 5px; border-radius: 2px; justify-self: start; }
.spec-ref { color: var(--knb-dark); font-size: 10px; cursor: pointer; text-decoration: underline dotted; text-underline-offset: 2px; }

/* registration rows are bordered event cards */
.lrow-reg { background: #ffffff; border: 1px solid var(--line); }
.lrow-reg:hover { background: var(--knb-lightest-tx); border-color: var(--knb-light); }
.lrow-reg.sel { background: #ffffff; outline: 1px solid var(--knb-dark); border-color: var(--knb-dark); }
.lrow-reg.tampered { background: #fff5f5; border-color: #000000; }
.lrow-reg.pulse { animation: pulseNew 1.2s ease-out; }
@keyframes pulseNew {
  0%   { background: var(--knb-light); transform: translateX(-6px); }
  60%  { background: var(--knb-lightest); transform: translateX(0); }
  100% { background: #ffffff; }
}

/* expanded children render like the layer directly below, indented */
.row-children { padding: 2px 0 4px 28px; display: flex; flex-direction: column; gap: 2px; }
.child-lrow { display: flex; align-items: center; gap: 8px; font-size: 10px; color: var(--fg-2); cursor: pointer; padding: 2px 6px; border-left: 2px solid var(--line); }
.child-lrow:hover { background: var(--knb-lightest-tx); }
.child-lrow .entry-id { font-size: 9.5px; }
.child-lrow .cdim { color: var(--fg-4); }

.mono { font-family: var(--mono); }
.dim { color: var(--fg-3); }
.cdim { color: var(--fg-4); font-size: 9.5px; }
.ev-type { color: var(--fg); font-weight: 600; }
.corr { font-size: 10.5px; color: var(--fg-2); }
.missing { color: #000000; font-weight: 700; }

.src-tag {
  display: inline-block; padding: 1px 5px; font-size: 9.5px;
  border-radius: 2px; font-weight: 700; letter-spacing: 0.04em;
  text-transform: uppercase;
  background: var(--bg-3); color: var(--fg-2);
}
/* Source tags are uniformly grey - no per-org colour cue. */

.sev-badge {
  display: inline-block; padding: 1px 5px; border-radius: 2px;
  font-size: 9.5px; font-weight: 700;
}
.sev-6 { background: var(--grey-1); color: var(--fg-2); }
.sev-5 { background: var(--grey-1); color: var(--grey-3); }
.sev-4 { background: var(--knb-lightest); color: var(--knb-mid); }
.sev-3 { background: var(--knb-lightest); color: var(--knb-dark); }
.sev-2 { background: #000000; color: #ffffff; }

.crosslinks {
  grid-column: 1 / -1;
  display: flex; flex-wrap: wrap; gap: 6px;
  padding: 3px 0 1px 64px; font-size: 9.5px;
}
.xlink { color: var(--knb-dark); background: var(--knb-lightest); padding: 1px 5px; border-radius: 2px; }

/* gate verdict panel */
.gate-verdict {
  border: 1px solid var(--line-2);
  border-radius: 2px;
  background: #ffffff;
  padding: 10px 12px;
}
.gate-verdict.pass { border-left: 3px solid var(--knb-dark); }
.gate-verdict.fail { border-left: 3px solid #000000; }
.gate-verdict.idle { border-left: 3px solid var(--line-2); }
.gv-head { display: flex; align-items: baseline; gap: 10px; flex-wrap: wrap; margin-bottom: 8px; }
.gv-head .t { font-weight: 700; letter-spacing: 0.06em; font-size: 11px; }
.gv-head .s { color: var(--fg-2); font-size: 11px; }
.gv-head .s2 { color: var(--fg-3); font-size: 10.5px; margin-left: auto; }
.gv-empty { color: var(--fg-3); font-family: var(--sans); font-size: 11.5px; }
.pill { font-size: 10px; padding: 2px 8px; border-radius: 10px; }
.pill-pass { background: var(--knb-lightest); color: var(--knb-dark); }
.pill-fail { background: #000000; color: #ffffff; }
.gv-conds {
  display: grid; grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 4px 12px; padding: 6px 0;
  border-top: 1px dashed var(--line-2);
}
.gv-cond { display: flex; align-items: center; gap: 8px; font-size: 11px; padding: 3px 0; }
.gv-cond .ck { font-weight: 700; width: 14px; }
.gv-cond.ok .ck { color: var(--knb-dark); }
.gv-cond.bad .ck { color: #000000; }
.gv-cond .cname { color: var(--fg); width: 28px; }
.gv-cond .cdesc { color: var(--fg-3); }
.gv-cond.bad .cdesc { color: #000000; font-weight: 600; }
.gv-note {
  margin-top: 6px; padding: 6px 8px;
  background: var(--grey-1);
  border-left: 2px solid #000000;
  font-size: 11px; color: var(--fg);
}
.gv-foot { margin-top: 8px; display: flex; align-items: center; gap: 6px; flex-wrap: wrap; }

.prin-tag {
  display: inline-block; font-size: 9.5px; padding: 1px 5px;
  background: var(--knb-lightest); color: var(--knb-dark);
  border-radius: 2px; letter-spacing: 0.05em; font-weight: 700;
}

/* graph view */
.graph-view { border: 1px solid var(--line-2); border-radius: 2px; background: #ffffff; }
.gv-tabs { display: flex; align-items: center; gap: 6px; padding: 6px 10px; border-bottom: 1px solid var(--line); }
.gvt-label { font-size: 10px; color: var(--fg-3); text-transform: uppercase; letter-spacing: 0.1em; margin-right: 6px; }
.tab {
  background: transparent; border: 1px solid transparent; color: var(--fg-3);
  padding: 3px 8px; font-size: 10.5px; border-radius: 2px;
  cursor: pointer; font-family: var(--mono);
}
.tab:hover { color: var(--knb-dark); }
.tab.on { background: var(--knb-lightest); color: var(--knb-dark); border-color: var(--knb-light); }
.gv-body { padding: 8px; overflow-x: auto; }
.graph-svg { display: block; background: var(--bg); margin: 0 auto; max-width: 100%; height: auto; }
.g-band { stroke: var(--line); stroke-width: 1; }
.g-band-inst  { fill: var(--layer-inst-bg); }
.g-band-logic { fill: var(--layer-logic-bg); }
.g-band-reg   { fill: var(--bg-1); }
.g-band-lbl   { fill: var(--knb-dark); font-size: 10px; font-family: var(--mono); text-transform: uppercase; letter-spacing: 0.1em; font-weight: 700; }
.g-node-lbl   { fill: #ffffff; font-size: 10px; font-family: var(--mono); text-anchor: middle; pointer-events: none; font-weight: 600; dominant-baseline: middle; }
.g-node       { stroke-width: 1; }
.g-reg        { fill: var(--grey-3);    stroke: var(--fg-2); }
.g-logic      { fill: var(--knb-mid);   stroke: var(--knb-mid); }
.g-inst       { fill: var(--knb-dark);  stroke: var(--knb-dark); }
.g-tamper     { fill: #000000;          stroke: #000000; }
.g-edge       { stroke: var(--knb-mid); stroke-width: 1; opacity: 0.55; }

.graph-placeholder { padding: 16px; color: var(--fg-3); font-family: var(--sans); font-size: 11.5px; line-height: 1.55; }
.ph-label { color: var(--knb-dark); font-weight: 700; margin-bottom: 6px; font-family: var(--mono); letter-spacing: 0.06em; font-size: 11px; }

.trail-head { display: flex; align-items: baseline; gap: 12px; padding: 6px 12px; border-bottom: 1px solid var(--line); background: var(--bg-1); }
.trail-lbl { color: var(--knb-dark); font-weight: 700; font-size: 10px; letter-spacing: 0.08em; text-transform: uppercase; }
.trail-target { font-family: var(--mono); color: var(--fg); font-weight: 600; font-size: 11px; }
.trail-meta { color: var(--fg-3); font-size: 10px; margin-left: auto; }

/* ---- Object-centric view ---- */
.objcentric-wrap { display: flex; flex-direction: column; }
.objcentric-legend {
  display: flex; gap: 28px;
  padding: 8px 12px; border-bottom: 1px solid var(--line);
  background: var(--bg-1); font-family: var(--mono); font-size: 10px;
}
.legend-group { display: flex; flex-direction: column; gap: 3px; }
.legend-head {
  font-weight: 700; letter-spacing: 0.1em; font-size: 8.5px;
  color: var(--fg-3); text-transform: uppercase; margin-bottom: 3px;
}
.legend-item { display: inline-flex; align-items: center; gap: 7px; color: var(--fg); white-space: nowrap; }
.sw { width: 13px; height: 13px; display: inline-block; flex: none; }
.objcentric-canvas { width: 100%; background: var(--bg); }
.objcentric-empty {
  position: absolute; inset: 0;
  display: flex; align-items: center; justify-content: center;
  color: var(--fg-3); font-family: var(--mono); font-size: 11px;
  pointer-events: none;
}

/* audit unit */
.audit-unit {
  border: 1px solid var(--knb-dark);
  border-radius: 2px;
  background: #ffffff;
  box-shadow: 0 0 0 2px var(--knb-lightest);
}
.audit-unit header {
  display: flex; align-items: center; gap: 10px;
  padding: 8px 12px; border-bottom: 1px solid var(--knb-light);
  background: var(--knb-lightest-tx);
}
.au-title { font-weight: 700; letter-spacing: 0.06em; font-size: 11.5px; color: var(--knb-dark); }
.au-grid {
  display: grid; grid-template-columns: 1fr 40px 1fr;
  gap: 8px; padding: 10px 12px;
  align-items: stretch;
}
.au-store { background: var(--bg-1); border: 1px solid var(--line-2); border-radius: 2px; padding: 8px; }
.au-store.immutable { border-color: var(--knb-dark); }
.au-store-head { display: flex; align-items: baseline; gap: 8px; padding-bottom: 6px; border-bottom: 1px dashed var(--line-2); margin-bottom: 6px; }
.au-store-name { font-weight: 700; font-size: 11px; }
.au-store.immutable .au-store-name { color: var(--knb-dark); }
.au-store-sub { color: var(--fg-3); font-size: 10px; }
.au-list { display: flex; flex-direction: column; gap: 2px; max-height: 180px; overflow: auto; }
.au-row { display: flex; align-items: center; gap: 8px; padding: 3px 4px; font-size: 10.5px; border-radius: 2px; background: #ffffff; border: 1px solid var(--line); flex-wrap: wrap; }
.au-row.changed { background: var(--knb-lightest); border-color: var(--knb-light); border-left: 2px solid var(--knb-dark); }
.au-id { color: var(--fg-3); }
.au-v { color: var(--knb-dark); font-weight: 700; }
.au-lbl { color: var(--fg-2); flex: 1; }
.au-tag { font-size: 9px; padding: 1px 5px; background: var(--knb-dark); color: #ffffff; border-radius: 2px; font-weight: 700; }
.au-hashes { flex-basis: 100%; padding-left: 12px; font-size: 10px; color: var(--fg-3); display: flex; gap: 6px; flex-wrap: wrap; }
.au-h { color: var(--fg-2); font-family: var(--mono); }
.au-h-arrow { color: var(--fg-4); }
.au-by { margin-left: auto; color: var(--fg-3); font-style: italic; }
.au-empty { color: var(--fg-3); font-size: 10.5px; padding: 8px; font-style: italic; }
.au-arrow { display: flex; align-items: center; justify-content: center; color: var(--knb-dark); font-weight: 700; font-size: 11px; }
.au-foot { padding: 6px 12px; border-top: 1px solid var(--line); font-size: 10.5px; color: var(--fg-3); font-family: var(--sans); }
.au-foot .prin-tag { margin: 0 4px 0 6px; }

/* RIGHT RAIL */
.right-rail { padding: 0; display: flex; flex-direction: column; }
.rr-tabs { display: flex; border-bottom: 1px solid var(--line-2); background: #ffffff; position: sticky; top: 0; z-index: 1; }
.rr-tab {
  flex: 1; background: transparent; border: none;
  color: var(--fg-3); padding: 8px 6px;
  font-size: 10.5px; cursor: pointer; font-family: var(--mono);
  letter-spacing: 0.04em;
  border-bottom: 2px solid transparent;
}
.rr-tab:hover { color: var(--knb-dark); }
.rr-tab.on { color: var(--knb-dark); border-bottom-color: var(--knb-dark); }
.rr-body { padding: 10px; overflow-y: auto; flex: 1; }
.rr-hint { color: var(--fg-3); font-size: 10px; text-transform: uppercase; letter-spacing: 0.08em; margin-bottom: 8px; }

/* specs */
.spec-card { border: 1px solid var(--line-2); border-radius: 2px; padding: 8px; margin-bottom: 8px; background: #ffffff; }
.spec-card.hl { border-color: var(--knb-dark); box-shadow: 0 0 0 1px var(--knb-light); }
.sc-head { display: flex; align-items: baseline; gap: 8px; margin-bottom: 6px; }
.sc-id { font-weight: 700; font-size: 11px; color: var(--knb-dark); }
.sc-type { font-size: 9.5px; color: var(--fg-3); }
.sc-grid { display: grid; grid-template-columns: auto 1fr; gap: 2px 8px; font-size: 10.5px; padding: 4px 0; border-bottom: 1px dashed var(--line-2); margin-bottom: 6px; }
.sc-grid .k { color: var(--fg-3); }
.sc-grid .v { color: var(--fg); }
.sc-scope { margin-top: 6px; }
.sc-label { font-size: 9.5px; color: var(--fg-3); text-transform: uppercase; letter-spacing: 0.06em; margin-bottom: 3px; }
.sc-chips { display: flex; flex-wrap: wrap; gap: 3px; }
.chip-s { font-size: 9.5px; padding: 1px 5px; background: var(--bg-2); border: 1px solid var(--line); color: var(--fg-2); border-radius: 2px; }
.sc-prose { margin-top: 8px; padding-top: 6px; border-top: 1px dashed var(--line-2); font-family: var(--sans); font-size: 11px; color: var(--fg-2); line-height: 1.5; }

/* schemas */
.tree details { background: #ffffff; border: 1px solid var(--line-2); border-radius: 2px; padding: 4px 8px; margin-bottom: 4px; }
.tree summary { cursor: pointer; font-size: 11px; color: var(--fg); padding: 2px 0; }
.tree summary::marker { color: var(--fg-3); }
.schema-fields { display: flex; flex-direction: column; gap: 2px; padding: 6px 0 2px; }
.field-row { display: grid; grid-template-columns: 1fr 1.2fr auto; gap: 6px; font-size: 10px; }
.fn { color: var(--fg); }
.ft { color: var(--fg-3); }
.freq { font-size: 8.5px; padding: 0 4px; background: var(--knb-lightest); color: var(--knb-dark); border-radius: 2px; font-weight: 700; }

/* registries */
.reg-block { margin-bottom: 12px; }
.rb-head { font-size: 10.5px; font-weight: 700; letter-spacing: 0.05em; color: var(--knb-dark); margin-bottom: 4px; }
.reg-mini-tbl { border: 1px solid var(--line-2); border-radius: 2px; background: #ffffff; }
.rmt-head, .rmt-row {
  display: grid; grid-template-columns: 0.7fr 1fr;
  gap: 6px; padding: 4px 6px; font-size: 10px; align-items: center;
}
.rmt-head { background: var(--bg-2); color: var(--fg-3); text-transform: uppercase; letter-spacing: 0.06em; font-size: 9px; }
.rmt-row + .rmt-row { border-top: 1px dashed var(--line); }
.trace-row { border: 1px solid var(--line-2); background: #ffffff; border-radius: 2px; padding: 6px; margin-bottom: 4px; font-size: 10px; }
.t-line { padding: 1px 0; }

/* principles */
.prin-card { border: 1px solid var(--line-2); background: #ffffff; border-radius: 2px; padding: 8px; margin-bottom: 6px; }
.prin-head { display: flex; align-items: center; gap: 8px; }
.prin-name { font-weight: 600; font-size: 11px; }
.prin-text { font-family: var(--sans); font-size: 11px; color: var(--fg-2); margin-top: 4px; line-height: 1.5; }

/* scrollbars */
::-webkit-scrollbar { width: 8px; height: 8px; }
::-webkit-scrollbar-track { background: var(--bg-1); }
::-webkit-scrollbar-thumb { background: var(--grey-2); border-radius: 4px; }
::-webkit-scrollbar-thumb:hover { background: var(--grey-3); }

/* screen-size guard + initial loading placeholder (kept out of inline HTML so
   the page runs under a strict CSP: style-src 'self', no 'unsafe-inline') */
#screen-cover {
  display: none;
  position: fixed; top: 0; left: 0; width: 100%; height: 100%;
  background: #fff; z-index: 99999; padding: 40px; box-sizing: border-box;
  font-family: "JetBrains Mono", monospace; color: var(--knb-dark);
}
#screen-cover p { margin: 0 0 16px; }
#screen-cover-ignore {
  background: var(--knb-dark); color: #fff; border: none;
  padding: 8px 20px; font-family: "JetBrains Mono", monospace;
  font-size: 0.875rem; cursor: pointer;
}
.app-loading {
  padding: 40px; font-family: "JetBrains Mono", monospace; color: var(--knb-dark);
}