/* ===============================================================
   ERD Viewer — global theme + layout
   Pure vanilla CSS. No framework. Web Components use Light DOM,
   so all selectors below apply project-wide.
   =============================================================== */

:root {
  --bg:     #0d1117;
  --bg-2:   #161b22;
  --bg-3:   #1f242c;
  --panel:  #11161d;
  --line:   #30363d;
  --line-2: #444c56;
  --text:   #e6edf3;
  --muted:  #8b949e;
  --accent: #58a6ff;
  --warn:   #f7b955;
  --bad:    #f85149;
  --good:   #3fb950;
  --pk:     #d2a8ff;
  --fk:     #58a6ff;

  /* Group palette tokens. Producers may use any of these names
     in `groups[].color`, or supply a raw CSS color. */
  --c-patient: #4f8cff;
  --c-device:  #ff8a4f;
  --c-presc:   #6cdc7a;
  --c-treat:   #c084fc;
  --c-lookup:  #f7d37a;
  --c-dash:    #ff7ab6;
  --c-sapph:   #ff5c5c;
  --c-audit:   #9aa4b1;
  --c-default: #7d8590;

  --mono: ui-monospace, SFMono-Regular, Menlo, monospace;

  /* Theme-dependent chrome (toolbar, zoom, minimap, overlays) */
  --canvas-dot: #1a2230;
  --chrome-bg: rgba(13,17,23,.85);
  --chrome-solid: rgba(13,17,23,.96);
  --chrome-border: rgba(48,54,61,.5);
  --drop-overlay-bg: rgba(13,17,23,.78);
  --palette-scrim: rgba(0,0,0,.45);
  --palette-panel-shadow: rgba(0,0,0,.6);
  --node-shadow: rgba(0,0,0,.4);
  --node-shadow-hover: rgba(88,166,255,.18);
  --node-shadow-selected: rgba(88,166,255,.4);
  --col-divider: rgba(255,255,255,.04);

  /* Canvas area behind the dot grid (inherits --bg unless overridden) */
  --canvas-bg: var(--bg);
  /* Floating controls (toolbar strip, zoom, minimap) — dark: blur only */
  --chrome-shadow: none;
}

/* Light palette — layered surfaces, calm neutrals, readable contrast */
:root[data-theme="light"] {
  color-scheme: light;
  --bg:       #ffffff;
  --bg-2:     #f6f8fa;
  --bg-3:     #eaeef2;
  --panel:    #fafbfc;
  --line:     #d0d7de;
  --line-2:   #656d76;
  --text:     #1f2328;
  --muted:    #59606e;
  --accent:   #0969da;
  --warn:     #9a6700;
  --bad:      #cf222e;
  --good:     #1a7f37;
  --pk:       #8250df;
  --fk:       #0550ae;

  --canvas-bg:     #eef2f7;
  --canvas-dot:    #cad5e2;
  --chrome-bg:     rgba(255, 255, 255, 0.92);
  --chrome-solid:  #ffffff;
  --chrome-border: rgba(208, 215, 222, 0.95);
  --chrome-shadow:
    0 1px 0 rgba(31, 35, 40, 0.04),
    0 4px 24px rgba(31, 35, 40, 0.07);
  --drop-overlay-bg: rgba(246, 248, 250, 0.94);
  --palette-scrim: rgba(31, 35, 40, 0.22);
  --palette-panel-shadow: rgba(31, 35, 40, 0.14);
  --node-shadow: rgba(31, 35, 40, 0.09);
  --node-shadow-hover: rgba(9, 105, 218, 0.15);
  --node-shadow-selected: rgba(9, 105, 218, 0.28);
  --col-divider: rgba(31, 35, 40, 0.09);
}

* { box-sizing: border-box; }
html, body {
  margin: 0; height: 100%;
  background: var(--bg); color: var(--text);
  font: 13px/1.4 -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  overflow: hidden;
}

/* App grid: canvas | resizer | side panel */
erd-app {
  --side-w: 420px;
  /* Right-edge offset for floating overlays (minimap w/ zoom bar) so they sit above
     the canvas, not over the side panel. Resizer (8px) + 12px gutter. */
  --right-offset: calc(var(--side-w) + 20px);
  position: fixed; inset: 0;
  display: grid;
  grid-template-columns: minmax(0, 1fr) 8px var(--side-w);
}

/* Focus mode: hide chrome, give the canvas the full window. */
erd-app.focus-mode {
  grid-template-columns: minmax(0, 1fr) 0 0;
  --right-offset: 12px;
}
erd-app.focus-mode > erd-resizer,
erd-app.focus-mode > erd-side-panel,
erd-app.focus-mode > erd-toolbar,
erd-app.focus-mode > .helpHint {
  display: none !important;
}
erd-app .focus-exit {
  position: fixed; left: 50%; top: 16px;
  transform: translateX(-50%);
  z-index: 110;
  background: var(--chrome-solid);
  border: 1px solid var(--line);
  color: var(--text);
  font: 11px/1 var(--mono);
  padding: 6px 12px;
  border-radius: 999px;
  cursor: pointer;
}
erd-app .focus-exit:hover { border-color: var(--accent); color: var(--accent); }

/* ====== Drop overlay ====== */
.drop-overlay {
  position: fixed; inset: 0; z-index: 200;
  background: var(--drop-overlay-bg);
  display: flex; align-items: center; justify-content: center;
  pointer-events: none;
  opacity: 0; transition: opacity .15s ease;
}
.drop-overlay.active { opacity: 1; }
/* Highlight the drop-cta while a file is dragged over the window */
body.dragging-file .drop-cta {
  border-color: var(--accent);
  background: color-mix(in srgb, var(--accent) 10%, var(--chrome-bg));
  color: var(--text);
  transform: scale(1.015);
}
.drop-overlay .panel {
  border: 2px dashed var(--accent);
  border-radius: 14px; padding: 32px 56px;
  font-size: 16px; color: var(--text);
  background: var(--chrome-solid);
}

/* ====== Banner / toasts ====== */
.banner {
  position: fixed; left: 50%; top: 16px;
  transform: translateX(-50%);
  z-index: 220;
  background: var(--bg-2);
  border: 1px solid var(--line);
  border-left: 4px solid var(--accent);
  border-radius: 8px;
  padding: 10px 14px;
  color: var(--text);
  max-width: 80vw;
  display: flex; align-items: center; gap: 10px;
}
.banner.warn { border-left-color: var(--warn); }
.banner.bad  { border-left-color: var(--bad); }
.banner button {
  background: transparent; border: 1px solid var(--line);
  color: var(--muted); padding: 2px 8px; border-radius: 4px; cursor: pointer;
  font: 11px var(--mono);
}
.banner button:hover { color: var(--text); border-color: var(--line-2); }

/* ====== Canvas wrapper ====== */
erd-canvas {
  position: relative; overflow: hidden; background:
    radial-gradient(circle at 25px 25px, var(--canvas-dot) 1px, transparent 1px) 0 0/50px 50px,
    var(--canvas-bg);
  cursor: grab;
  display: block;
}
erd-canvas.dragging { cursor: grabbing; }

erd-canvas .diagram-camera {
  position: absolute;
  inset: 0;
  transform-origin: 0 0;
  will-change: transform;
}
erd-canvas .relational-layer {
  position: absolute;
  inset: 0;
  pointer-events: auto;
}
erd-canvas .shape-svg {
  position: absolute;
  left: 0;
  top: 0;
  width: 100%;
  height: 100%;
  overflow: visible;
  pointer-events: auto;
}
erd-canvas.shape-mode { cursor: grab; }
erd-canvas.shape-mode.dragging { cursor: grabbing; }

/* Chen-style shape ERD (SVG) */
erd-canvas .shape-edge {
  stroke: #4f8cff;
  stroke-width: 1.6;
  fill: none;
  opacity: 0.85;
}
:root[data-theme="light"] erd-canvas .shape-edge {
  stroke: #1d4ed8;
  opacity: 0.92;
}
erd-canvas .shape-card {
  font-family: var(--mono);
  font-size: 12px;
  font-weight: 400;
  fill: var(--text);
  text-anchor: middle;
  paint-order: stroke;
  stroke: var(--canvas-bg, var(--bg));
  stroke-width: 3px;
  stroke-linejoin: round;
}
erd-canvas .shape-diamond {
  fill: #6b7280;
  stroke: #1f2937;
  stroke-width: 1;
}
:root[data-theme="light"] erd-canvas .shape-diamond {
  fill: #cbd5e1;
  stroke: #475569;
}
erd-canvas .shape-diamond-label {
  font-family: var(--mono);
  font-size: 11px;
  font-weight: 400;
  fill: var(--text);
  text-anchor: middle;
  paint-order: stroke;
  stroke: var(--canvas-bg, var(--bg));
  stroke-width: 3px;
  stroke-linejoin: round;
}

/* Entity ↔ attribute connectors — lighter than relationship edges */
erd-canvas .shape-attr-link {
  stroke: var(--line-2);
  stroke-width: 1;
  fill: none;
  opacity: 0.45;
}
:root[data-theme="light"] erd-canvas .shape-attr-link {
  stroke: #94a3b8;
  opacity: 0.55;
}

erd-canvas .shape-entity rect {
  fill: #f5c842;
  stroke: #1f2937;
  stroke-width: 1.4;
  cursor: pointer;
}
erd-canvas .shape-entity-label { cursor: pointer; }
erd-canvas .shape-entity.shape-selected rect {
  stroke: var(--accent);
  stroke-width: 3;
}
erd-canvas .shape-entity-label {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  font-size: 13px;
  font-weight: 600;
  fill: #111827;
  text-anchor: middle;
}
erd-canvas .shape-attr-ellipse {
  fill: rgba(180, 188, 200, 0.18);
  stroke: var(--line-2);
  stroke-width: 1;
}
:root[data-theme="light"] erd-canvas .shape-attr-ellipse {
  fill: #fff7ed;
  stroke: #d6d3d1;
  opacity: 1;
}
erd-canvas .shape-attr-label {
  font-family: var(--mono);
  font-size: 12px;
  font-weight: 400;
  fill: var(--muted);
  text-anchor: middle;
  paint-order: stroke;
  stroke: var(--canvas-bg, var(--bg));
  stroke-width: 2.5px;
  stroke-linejoin: round;
}
erd-canvas .shape-attr-label.shape-pk {
  text-decoration: underline;
  fill: var(--text);
}
erd-canvas .shape-attr-overflow {
  font-family: var(--mono);
  font-size: 11px;
  font-style: italic;
  fill: var(--muted);
  text-anchor: middle;
}

erd-canvas .world {
  position: absolute; left: 0; top: 0;
  transform-origin: 0 0;
  will-change: transform;
  --gz: 1;
}
erd-canvas .edges {
  position: absolute; left: 0; top: 0;
  width: 100%; height: 100%;
  pointer-events: none; overflow: visible;
  transform-origin: 0 0;
  will-change: transform;
}
.edge { fill: none; stroke: var(--line-2); stroke-width: 1.4; opacity: .55; }
.edge.cascade { stroke-dasharray: 4 3; }
.edge.highlight { stroke: var(--accent); stroke-width: 2.2; opacity: 1; }
.edge.dim { opacity: .08; }
.edge-arrow { fill: var(--line-2); }
.edge.highlight .edge-arrow { fill: var(--accent); }

/* ====== Table node ====== */
erd-table-node {
  position: absolute;
  background: var(--bg-2);
  border: 1px solid var(--line);
  border-left: 4px solid var(--c-default);
  border-radius: 8px;
  width: 288px;
  box-shadow: 0 6px 18px var(--node-shadow);
  user-select: none;
  cursor: grab;
  display: block;
  transition: box-shadow .12s ease, transform .12s ease;
}
erd-table-node:hover { box-shadow: 0 8px 24px var(--node-shadow-hover); }
erd-table-node.dragging { cursor: grabbing; z-index: 1000; }
erd-table-node.selected {
  border-color: var(--accent);
  box-shadow: 0 0 0 2px var(--accent), 0 8px 24px var(--node-shadow-selected);
}
erd-table-node.dim { opacity: .25; }
erd-table-node.search-hit { outline: 2px solid rgba(88,166,255,.55); outline-offset: 1px; }

/* Severity outlines (issue-based glow). --gz keeps glow visible at any zoom. */
erd-table-node.sev-good     { box-shadow:
     0 0 0 calc(1px * var(--gz)) rgba(63,185,80,.55),
     0 0 calc(14px * var(--gz)) calc(2px * var(--gz)) rgba(63,185,80,.32),
     0 6px 18px var(--node-shadow); }
erd-table-node.sev-warn     { box-shadow:
     0 0 0 calc(1px * var(--gz)) rgba(247,185,85,.7),
     0 0 calc(18px * var(--gz)) calc(3px * var(--gz)) rgba(247,185,85,.42),
     0 6px 18px var(--node-shadow); }
erd-table-node.sev-critical { box-shadow:
     0 0 0 calc(1px * var(--gz)) rgba(248,81,73,.8),
     0 0 calc(22px * var(--gz)) calc(4px * var(--gz)) rgba(248,81,73,.55),
     0 6px 18px var(--node-shadow); }
erd-table-node.sev-good.selected     { box-shadow:
     0 0 0 calc(2px * var(--gz)) var(--good),
     0 0 calc(20px * var(--gz)) calc(3px * var(--gz)) rgba(63,185,80,.7); }
erd-table-node.sev-warn.selected     { box-shadow:
     0 0 0 calc(2px * var(--gz)) var(--warn),
     0 0 calc(24px * var(--gz)) calc(4px * var(--gz)) rgba(247,185,85,.7); }
erd-table-node.sev-critical.selected { box-shadow:
     0 0 0 calc(2px * var(--gz)) var(--bad),
     0 0 calc(26px * var(--gz)) calc(5px * var(--gz)) rgba(248,81,73,.8); }

erd-table-node .node-head {
  display: flex; align-items: center; gap: 8px;
  padding: 9px 11px; font-weight: 600; font-size: 14px;
  border-bottom: 1px solid var(--line);
  background: linear-gradient(180deg, var(--bg-3), var(--bg-2));
  border-radius: 4px 4px 0 0;
}
erd-table-node .node-sevbadge {
  width: 8px; height: 8px; border-radius: 50%;
  box-shadow: 0 0 6px currentColor;
  flex-shrink: 0;
}
erd-table-node .node-sevbadge.sev-good     { background: var(--good); color: var(--good); }
erd-table-node .node-sevbadge.sev-warn     { background: var(--warn); color: var(--warn); }
erd-table-node .node-sevbadge.sev-critical { background: var(--bad);  color: var(--bad); }
erd-table-node .soft-fk-badge {
  font: 9px/1 var(--mono);
  padding: 2px 5px;
  border-radius: 4px;
  margin-left: 4px;
  color: #ffd58a;
  background: rgba(247,217,85,.12);
  border: 1px solid rgba(247,217,85,.35);
  cursor: help;
  flex-shrink: 0;
}
erd-table-node .badge {
  font: 10px/1 var(--mono);
  text-transform: uppercase;
  padding: 2px 6px; border-radius: 4px;
  background: rgba(255,255,255,.06); color: var(--muted);
  margin-left: auto;
}
erd-table-node .node-cols { padding: 4px 0; max-height: 320px; overflow: hidden; }
erd-table-node.expanded .node-cols { max-height: none; }
erd-table-node .col {
  display: flex; gap: 6px; align-items: center;
  padding: 4px 11px;
  font: 13px/1.35 var(--mono);
}
erd-table-node .col + .col { border-top: 1px dashed var(--col-divider); }
erd-table-node .col .key { width: 18px; flex: 0 0 18px; text-align: center; color: var(--muted); }
erd-table-node .col .key.pk { color: var(--pk); }
erd-table-node .col .key.fk { color: var(--fk); }
erd-table-node .col .name {
  flex: 1; color: var(--text);
  white-space: nowrap; overflow: hidden; text-overflow: ellipsis;
}
erd-table-node .col .type { color: var(--muted); font-size: 11px; }
erd-table-node .col.issue { background: rgba(248,81,73,.07); }
erd-table-node .col.match {
  background: rgba(247,217,85,.18);
  box-shadow: inset 2px 0 0 var(--warn);
}
erd-table-node .col.match .name { color: #ffe9a8; }

/* ----- Light mode: cards & Relational diagram legibility ----- */
:root[data-theme="light"] erd-toolbar .tb-group,
:root[data-theme="light"] erd-toolbar .tb-legend-box,
:root[data-theme="light"] erd-minimap,
:root[data-theme="light"] .helpHint,
:root[data-theme="light"] .help-pill {
  box-shadow: var(--chrome-shadow);
}

:root[data-theme="light"] erd-table-node {
  border-color: color-mix(in srgb, var(--line) 92%, var(--text));
  box-shadow:
    0 1px 3px rgba(31, 35, 40, 0.06),
    0 6px 18px var(--node-shadow);
}
:root[data-theme="light"] erd-table-node .node-head {
  background: linear-gradient(180deg, #f8fafc 0%, #f1f5f9 100%);
}
:root[data-theme="light"] erd-table-node .badge {
  background: rgba(31, 35, 40, 0.06);
  color: var(--muted);
}
:root[data-theme="light"] erd-table-node .soft-fk-badge {
  color: #6c4c08;
  background: rgba(154, 103, 0, 0.09);
  border-color: rgba(154, 103, 0, 0.28);
}
:root[data-theme="light"] erd-table-node .col.issue {
  background: rgba(207, 34, 46, 0.06);
}
:root[data-theme="light"] erd-table-node .col.match {
  background: rgba(154, 103, 0, 0.11);
  box-shadow: inset 3px 0 0 color-mix(in srgb, var(--warn) 85%, var(--text));
}
:root[data-theme="light"] erd-table-node .col.match .name {
  color: #3d2914;
}
:root[data-theme="light"] erd-table-node.search-hit {
  outline: 2px solid color-mix(in srgb, var(--accent) 50%, transparent);
  outline-offset: 1px;
}

:root[data-theme="light"] .edge:not(.highlight):not(.dim) {
  opacity: 0.62;
}
:root[data-theme="light"] erd-minimap .vp {
  background: color-mix(in srgb, var(--accent) 14%, transparent);
  border-color: color-mix(in srgb, var(--accent) 65%, var(--line));
}

:root[data-theme="light"] erd-canvas .shape-entity rect {
  fill: #fde047;
  stroke: #422006;
}
:root[data-theme="light"] erd-canvas .shape-entity-label {
  fill: #1c1917;
}
:root[data-theme="light"] erd-canvas .shape-attr-label {
  fill: #57534e;
}

/* ====== Toolbar ====== */
erd-toolbar {
  position: absolute; left: 12px; top: 12px; z-index: 50;
  display: flex; flex-direction: column; gap: 6px;
  max-width: calc(100vw - var(--right-offset) - 24px);
  /* Unified height for load / search / view controls inside .tb-row */
  --tb-control-h: 28px;
}
.tb-group {
  background: var(--chrome-bg);
  backdrop-filter: blur(8px);
  border: 1px solid var(--line);
  border-radius: 6px;
  padding: 4px;
  display: flex; gap: 2px; align-items: center;
}
.tb-group.col { flex-direction: column; }
.tb-sep {
  width: 1px; height: 18px; background: var(--line);
  margin: 0 4px; flex-shrink: 0;
}
.tb-btn {
  background: transparent; color: var(--text); border: 1px solid transparent;
  padding: 4px 8px; border-radius: 4px; cursor: pointer; font: 11px/1 inherit;
}
.tb-btn:hover { background: var(--bg-3); border-color: var(--line); }
.tb-btn.active { background: var(--bg-3); border-color: var(--accent); color: var(--accent); }
.tb-btn.tb-icon-only {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 4px 6px;
}
.tb-icon-svg {
  width: 14px;
  height: 14px;
  display: block;
}
.tb-input {
  background: var(--bg); border: 1px solid var(--line);
  color: var(--text); padding: 5px 10px; border-radius: 4px;
  width: 280px; max-width: 100%;
  font: 11px/1 inherit;
}
.tb-input:focus { outline: none; border-color: var(--accent); }

/* Toolbar row: load | search | view on one line; legend wraps below (same .tb-row). */
erd-toolbar .tb-row {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  align-items: stretch;
}
erd-toolbar .tb-group-load,
erd-toolbar .tb-group-search,
erd-toolbar .tb-group-view {
  flex: 0 0 auto;
  display: flex;
  align-items: center;
  align-self: stretch;
}
/* Narrower search field; same inner height as sibling chips */
erd-toolbar .tb-group-search .tb-input {
  width: 160px;
  height: var(--tb-control-h);
  min-height: var(--tb-control-h);
  box-sizing: border-box;
  padding: 0 10px;
  line-height: 1.2;
}
erd-toolbar .tb-group-load .tb-btn.tb-icon-only,
erd-toolbar .tb-group-search .tb-kpi,
erd-toolbar .tb-group-search .tb-btn.tb-icon-only,
erd-toolbar .tb-group-view > .tb-btn {
  height: var(--tb-control-h);
  min-height: var(--tb-control-h);
  box-sizing: border-box;
}
erd-toolbar .tb-group-search .tb-kpi {
  padding: 0 6px;
  line-height: var(--tb-control-h);
}
erd-toolbar .tb-group-view .tb-toggle {
  height: var(--tb-control-h);
  min-height: var(--tb-control-h);
  box-sizing: border-box;
  align-items: center;
  flex-shrink: 0;
}
erd-toolbar .tb-group-view .tb-toggle-opt {
  box-sizing: border-box;
  height: 100%;
  padding: 0 12px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
}

/* Primary action — accent-tinted, used for Load. */
.tb-btn-primary {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  border: 1px solid var(--line);
  background: color-mix(in srgb, var(--accent) 14%, transparent);
  color: var(--text);
  font-weight: 500;
}
.tb-btn-primary:hover {
  background: color-mix(in srgb, var(--accent) 22%, transparent);
  border-color: var(--accent);
  color: var(--accent);
}
.tb-btn-primary .tb-icon-svg { width: 14px; height: 14px; }
.tb-btn-label { line-height: 1; }
:root[data-theme="light"] .tb-btn-primary {
  background: color-mix(in srgb, var(--accent) 11%, var(--bg));
  border-color: color-mix(in srgb, var(--accent) 28%, var(--line));
}
:root[data-theme="light"] .tb-btn-primary:hover {
  background: color-mix(in srgb, var(--accent) 18%, var(--bg));
  border-color: var(--accent);
}
:root[data-theme="light"] .tb-btn:focus-visible,
:root[data-theme="light"] .zoom-btn:focus-visible,
:root[data-theme="light"] button.leg-chip:focus-visible {
  outline: 2px solid color-mix(in srgb, var(--accent) 50%, transparent);
  outline-offset: 2px;
}
.tb-select {
  background: var(--bg); border: 1px solid var(--line);
  color: var(--text); padding: 4px 6px; border-radius: 4px;
  font: 11px/1 inherit;
}
.tb-select:focus { outline: none; border-color: var(--accent); }
.tb-label {
  display: inline-flex; align-items: center; gap: 4px;
  color: var(--muted); font-size: 10px;
}
.tb-kpi {
  display: inline-flex; align-items: center; justify-content: center;
  min-width: 32px; padding: 0 6px;
  border: 1px solid var(--line); border-radius: 4px;
  color: var(--muted); background: var(--bg);
  font: 10px/1 var(--mono);
}

/* Search results dropdown */
.search-results {
  position: absolute;
  left: 6px; right: 6px; top: calc(100% + 4px);
  max-height: 320px; overflow: auto;
  background: var(--chrome-solid);
  border: 1px solid var(--line); border-radius: 8px;
  box-shadow: 0 12px 28px var(--palette-panel-shadow);
  z-index: 60;
  scrollbar-width: thin;
  scrollbar-color: rgba(139,148,158,.58) transparent;
}
.search-results::-webkit-scrollbar { width: 8px; }
.search-results::-webkit-scrollbar-thumb {
  background: rgba(139,148,158,.52); border-radius: 999px;
  border: 2px solid transparent; background-clip: padding-box;
}
:root[data-theme="light"] .search-results {
  scrollbar-color: rgba(88, 96, 106, 0.42) transparent;
}
:root[data-theme="light"] .search-results::-webkit-scrollbar-thumb {
  background: rgba(88, 96, 106, 0.38);
}
.sr-row {
  display: flex; gap: 8px; align-items: baseline;
  padding: 6px 10px; cursor: pointer; border-bottom: 1px solid var(--chrome-border);
}
.sr-row:last-child { border-bottom: none; }
.sr-row:hover, .sr-row.active { background: var(--bg-3); }
.sr-row .sr-name { color: var(--text); font-weight: 500; flex-shrink: 0; }
.sr-row .sr-cols { color: var(--muted); font-family: var(--mono); font-size: 11px; flex: 1; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.sr-row .sr-score { color: var(--muted); font: 10px var(--mono); opacity: .55; }
.sr-row .sr-num {
  display: inline-block; min-width: 14px; text-align: center;
  font: 9px/1.4 var(--mono); color: var(--muted);
  padding: 1px 4px; border-radius: 3px;
  background: var(--bg-3);
  flex-shrink: 0;
}
.sr-row.active .sr-num { color: var(--accent); border: 1px solid var(--accent); padding: 0 3px; }
.sr-bucket {
  padding: 4px 10px;
  font: 10px var(--mono);
  text-transform: uppercase;
  letter-spacing: .04em;
  color: var(--muted);
  background: color-mix(in srgb, var(--line) 35%, transparent);
  border-bottom: 1px solid var(--chrome-border);
}
.sr-bucket span { opacity: .65; }
.sr-empty, .sr-more { padding: 8px 10px; color: var(--muted); font-size: 11px; }

/* Custom tooltip — replaces native `title` (slow + OS-styled). */
.erd-tip {
  background: var(--chrome-solid, #1a1d23);
  color: var(--text);
  border: 1px solid var(--line);
  border-radius: 6px;
  padding: 6px 9px;
  max-width: 280px;
  font: 11px/1.35 var(--mono);
  letter-spacing: .01em;
  box-shadow: 0 8px 24px rgba(0, 0, 0, .35);
  white-space: pre-wrap;
  word-break: break-word;
}
:root[data-theme="light"] .erd-tip {
  background: var(--chrome-solid);
  color: var(--text);
  border-color: var(--line);
  box-shadow:
    var(--chrome-shadow),
    0 12px 32px var(--palette-panel-shadow);
}

/* Combined legend box (Category + Priority sections, vertically stacked). */
.tb-legend-box {
  flex-direction: column;
  align-items: stretch;
  gap: 8px;
  max-width: 280px;
  padding: 6px 8px;
}
.tb-legend-box .legend-section {
  display: flex;
  flex-direction: column;
  gap: 4px;
}
.tb-legend-box .legend-title {
  margin: 0;
  font: 9px/1 var(--mono);
  text-transform: uppercase;
  letter-spacing: .08em;
  color: var(--muted);
  padding: 0 2px;
}
.tb-legend-box .legend-chips {
  display: flex;
  flex-wrap: wrap;
  gap: 4px;
}
.tb-legend-box .legend-divider {
  height: 1px;
  background: var(--line);
  opacity: .6;
  margin: 0 -4px;
}

.legend { display: flex; flex-wrap: wrap; gap: 4px; max-width: 280px; }
.leg-chip {
  display: inline-flex; align-items: center; gap: 5px;
  font: 10px/1 inherit; color: var(--muted);
  padding: 3px 8px; background: var(--bg-3);
  border: 1px solid transparent; border-radius: 10px;
  cursor: pointer;
  transition: opacity .12s ease, border-color .12s ease, color .12s ease;
}
button.leg-chip { font-family: inherit; }
.leg-chip:hover { color: var(--text); border-color: var(--line); }
.leg-chip:focus-visible { outline: none; border-color: var(--accent); }
.leg-chip .dot { width: 8px; height: 8px; border-radius: 50%; flex-shrink: 0; }
.leg-chip.off { opacity: .35; }
.leg-chip.off .dot { box-shadow: none !important; filter: grayscale(0.6); }

/* Sliding diagram toggle (DSD ⇄ ERD) */
.tb-toggle {
  position: relative;
  display: inline-flex;
  background: var(--bg);
  border: 1px solid var(--line);
  border-radius: 999px;
  padding: 2px;
  gap: 0;
  user-select: none;
}
.tb-toggle-pill {
  position: absolute;
  top: 2px;
  bottom: 2px;
  left: 2px;
  width: calc(50% - 2px);
  background: var(--accent);
  border-radius: 999px;
  transition: transform .18s cubic-bezier(.4, 0, .2, 1);
  pointer-events: none;
  opacity: .85;
}
.tb-toggle[data-view="shape"] .tb-toggle-pill { transform: translateX(100%); }
.tb-toggle-opt {
  position: relative;
  z-index: 1;
  background: transparent;
  border: 0;
  color: var(--muted);
  padding: 4px 12px;
  font: 11px/1 inherit;
  border-radius: 999px;
  cursor: pointer;
  min-width: 36px;
  transition: color .18s ease;
}
.tb-toggle-opt:hover { color: var(--text); }
.tb-toggle-opt[aria-selected="true"] {
  color: #fff;
  font-weight: 600;
}
:root[data-theme="light"] .tb-toggle-opt[aria-selected="true"] {
  color: #fff;
}

/* Zoom controls live on erd-minimap .mm-bar; shared button/input styles: */
.zoom-btn {
  background: transparent; color: var(--text); border: 1px solid transparent;
  width: 22px; height: 22px; border-radius: 4px; cursor: pointer;
  font: 13px/1 var(--mono);
}
.zoom-btn:hover { background: var(--bg-3); border-color: var(--line); }
.zoom-input {
  width: 44px; text-align: center;
  background: var(--bg); border: 1px solid var(--line);
  color: var(--text); border-radius: 4px; padding: 3px 4px;
  font: 11px/1 var(--mono);
}
.zoom-input:focus { outline: none; border-color: var(--accent); }
.zoom-suffix {
  margin-right: 2px;
  font: 10px/1 var(--mono); color: var(--muted);
}

/* ====== Minimap ====== */
erd-minimap {
  position: absolute; right: var(--right-offset); bottom: 12px;
  /* width/height are set inline by erd-minimap.js based on ui.minimapSize. */
  background: var(--chrome-bg);
  border: 1px solid var(--line); border-radius: 8px;
  overflow: hidden; backdrop-filter: blur(6px); z-index: 40;
  display: flex;
  flex-direction: column;
}
erd-minimap.hidden { display: none; }
erd-minimap.dragging .mm-body { cursor: grabbing; }
erd-minimap .mm-body {
  position: relative;
  flex: 1;
  min-height: 0;
  overflow: hidden;
  cursor: crosshair;
}
erd-minimap canvas { display: block; }
erd-minimap .vp {
  position: absolute;
  left: 0; top: 0;
  border: 1.5px solid var(--accent);
  background: rgba(88,166,255,.12);
  pointer-events: none;
}

/* Minimap header strip — MAP, zoom, size pills, close. */
erd-minimap .mm-bar {
  flex-shrink: 0;
  display: flex; align-items: center; flex-wrap: nowrap;
  gap: 3px 4px;
  padding: 4px 5px;
  background: linear-gradient(to bottom,
    color-mix(in srgb, var(--bg-2) 92%, transparent),
    color-mix(in srgb, var(--bg-2) 75%, transparent));
  border-bottom: 1px solid var(--line);
  font: 9px/1 var(--mono);
  letter-spacing: .08em;
  z-index: 1;
  cursor: default;
  overflow-x: auto;
  scrollbar-width: thin;
}
erd-minimap .mm-bar .zoom-icon {
  width: 12px;
  height: 12px;
  display: block;
}
erd-minimap .mm-bar .zoom-side {
  display: inline-flex;
  align-items: center;
  justify-content: center;
}
erd-minimap .mm-bar .zoom-sep {
  width: 1px; align-self: stretch; min-height: 16px;
  background: var(--line);
  margin: 0 1px;
  flex-shrink: 0;
}
erd-minimap .mm-bar .zoom-btn {
  width: 20px; height: 20px;
  font: 12px/1 var(--mono);
}
erd-minimap .mm-bar .zoom-input {
  width: 40px;
  padding: 2px 3px;
  font: 10px/1 var(--mono);
}
erd-minimap .mm-bar .zoom-suffix {
  font: 9px/1 var(--mono);
  margin-right: 0;
}
erd-minimap .mm-title {
  color: var(--muted);
  text-transform: uppercase;
  padding: 0 4px;
  flex-shrink: 0;
}
erd-minimap .mm-spacer { flex: 1; min-width: 4px; }
erd-minimap .mm-group {
  display: inline-flex;
  align-items: center;
  flex-shrink: 0;
  gap: 3px;
  padding: 2px 5px;
  border-radius: 5px;
  border: 1px solid color-mix(in srgb, var(--line) 85%, transparent);
  background: color-mix(in srgb, var(--bg) 55%, transparent);
}
erd-minimap .mm-group-size {
  gap: 2px;
  padding: 2px 4px;
}
erd-minimap .mm-size {
  background: transparent;
  border: 1px solid transparent;
  color: var(--muted);
  width: 18px; height: 18px;
  border-radius: 3px;
  padding: 0;
  font: 9px/1 var(--mono);
  cursor: pointer;
}
erd-minimap .mm-size:hover { color: var(--text); border-color: var(--line); }
erd-minimap .mm-size.active {
  color: var(--accent);
  border-color: var(--accent);
  background: color-mix(in srgb, var(--accent) 14%, transparent);
}
erd-minimap .mm-close {
  background: transparent; border: none; color: var(--muted);
  width: 18px; height: 18px; padding: 0;
  font: 14px/1 var(--mono);
  cursor: pointer;
  border-radius: 3px;
}
erd-minimap .mm-close:hover { color: var(--text); background: var(--bg-3); }

/* Floating "show map" pill (mirrors .help-pill but bottom-right). */
.map-pill {
  position: absolute; right: 12px; bottom: 12px; z-index: 40;
  width: 28px; height: 28px; border-radius: 6px;
  background: var(--chrome-bg); border: 1px solid var(--line);
  color: var(--muted); cursor: pointer;
  font: 14px/1 var(--mono);
  display: inline-flex; align-items: center; justify-content: center;
}
.map-pill:hover { color: var(--accent); border-color: var(--accent); }
.map-pill[hidden] { display: none !important; }
:root[data-theme="light"] .map-pill { box-shadow: var(--chrome-shadow); }
erd-app.focus-mode > .map-pill { display: none !important; }

/* ====== Help hint ====== */
.helpHint {
  position: absolute; left: 12px; bottom: 12px; z-index: 40;
  background: var(--chrome-bg); border: 1px solid var(--line); border-radius: 6px;
  padding: 5px 8px 5px 10px; font-size: 10.5px; color: var(--muted);
  max-width: 380px;
  display: flex; align-items: center; gap: 6px;
}
.helpHint[hidden], .help-pill[hidden] { display: none !important; }
.helpHint .help-body {
  display: inline; line-height: 1.7;
}
.helpHint kbd {
  background: var(--bg-3); padding: 1px 5px;
  border: 1px solid var(--line); border-radius: 3px;
  font-family: var(--mono); font-size: 10px; color: var(--text);
}
.helpHint .help-close {
  background: transparent; border: none; color: var(--muted);
  cursor: pointer; padding: 0 4px; font: 14px/1 var(--mono);
  flex-shrink: 0; order: 2; margin-left: auto;
}
.helpHint .help-close:hover { color: var(--text); }
.help-pill {
  position: absolute; left: 12px; bottom: 12px; z-index: 40;
  width: 24px; height: 24px; border-radius: 50%;
  background: var(--chrome-bg); border: 1px solid var(--line);
  color: var(--muted); cursor: pointer;
  font: 12px/1 var(--mono);
  display: inline-flex; align-items: center; justify-content: center;
}
.help-pill:hover { color: var(--text); border-color: var(--accent); }
erd-app.focus-mode > .help-pill { display: none !important; }

/* ====== Side panel (host only) ====== */
/* All internals (.tabs, .tab, .tab-body, .card, .sev, .pill, .fix-*, .review-*,
   .silence-*, .toolbar-row) are scoped inside the component's Shadow DOM —
   see components/erd-side-panel.js. Host-level placement and visual frame
   stay here so the grid track in erd-app keeps working. */
erd-side-panel {
  background: var(--panel); border-left: 1px solid var(--line);
  display: flex; flex-direction: column; height: 100vh;
  overflow: hidden;
}

/* ====== Resizer ====== */
erd-resizer {
  background: transparent;
  border-left: 1px solid var(--line);
  border-right: 1px solid var(--line);
  cursor: col-resize;
  position: relative;
  z-index: 70;
  display: block;
}
erd-resizer::after {
  content: '';
  position: absolute; left: 50%; top: 50%;
  width: 3px; height: 46px; transform: translate(-50%, -50%);
  border-radius: 2px; background: var(--line);
}
erd-resizer:hover::after { background: var(--accent); }
body.resizing-ew { cursor: col-resize; user-select: none; }

/* ====== Empty / loading state ====== */
.empty-state {
  /* Sits inside erd-app (position:fixed grid) — cover only the canvas column */
  position: fixed;
  top: 0; left: 0;
  right: var(--right-offset);
  bottom: 0;
  z-index: 45;
  display: flex; align-items: center; justify-content: center;
  flex-direction: column; gap: 14px;
  pointer-events: none;
}
.empty-state[hidden] { display: none; }

/* Large drop-zone button */
.drop-cta {
  pointer-events: auto;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 14px;
  width: 340px;
  padding: 48px 40px;
  border-radius: 20px;
  border: 2px dashed var(--line-2);
  background: color-mix(in srgb, var(--chrome-bg) 80%, transparent);
  color: var(--muted);
  cursor: pointer;
  font: inherit;
  transition:
    border-color .15s ease,
    background   .15s ease,
    color        .15s ease,
    transform    .12s ease;
}
.drop-cta:hover, .drop-cta:focus-visible {
  border-color: var(--accent);
  background: color-mix(in srgb, var(--accent) 8%, var(--chrome-bg));
  color: var(--text);
  transform: scale(1.015);
  outline: none;
}
.drop-cta-icon {
  width: 52px; height: 52px;
  color: inherit;
  opacity: .55;
  transition: opacity .15s ease;
}
.drop-cta:hover .drop-cta-icon,
.drop-cta:focus-visible .drop-cta-icon { opacity: .9; }
.drop-cta-title {
  font-size: 17px;
  font-weight: 600;
  color: var(--text);
  letter-spacing: -0.01em;
  line-height: 1.2;
}
.drop-cta-sub {
  font-size: 13px;
  color: var(--muted);
  line-height: 1.3;
}

/* Small secondary link below the drop zone */
.drop-sample {
  pointer-events: auto;
  background: transparent;
  border: none;
  color: var(--muted);
  font: 12px/1 inherit;
  cursor: pointer;
  padding: 4px 8px;
  border-radius: 4px;
  text-decoration: underline;
  text-underline-offset: 3px;
}
.drop-sample:hover { color: var(--accent); }

.empty-state code { background: var(--bg-3); padding: 1px 6px; border-radius: 4px; font: 12px var(--mono); color: var(--pk); }