:root {
  color-scheme: dark;
  --head2-top: 32px;
  /* Base font sizing scales the entire UI to mimic 90% browser zoom */
  --base-font-size: 90%;
  /* Normalized font sizes in rem units for consistent scaling */
  --font-size-11: 0.6875rem;
  --font-size-12: 0.75rem;
  --font-size-13: 0.8125rem;
  --font-size-14: 0.875rem;
  --font-size-16: 1rem;
  --font-size-18: 1.125rem;

}

/*
  Theme tokens
  -----------
  The variables below provide a single source of truth for the UI color
  palette. Additional theme packs can override any of the `--color-*`
  tokens by applying a `data-theme` attribute to the `<html>` element and
  defining a new rule block, e.g. `:root[data-theme="sunrise"] { ... }`.
*/
:root,
:root[data-theme="midnight"] {
  /* Core surfaces */
  --color-surface-canvas: #0f172a;
  --color-surface-panel: #131f35;
  --color-surface-panel-elevated: #16273f;
  --color-surface-panel-hover: #1e3456;
  --color-surface-panel-soft: #182840;
  --color-surface-panel-muted: #151f33;
  --color-surface-table: #14203a;
  --color-surface-table-label: #1b2d4a;
  --color-surface-table-label-hover: #243b63;
  --color-surface-chip: #1e3254;

  /* Rule surfaces */
  --color-surface-rule-group: var(--color-surface-panel-elevated);
  --color-surface-rule-card: #1f3254;
  --color-surface-rule-card-hover: #27426d;

  /* Rule presentation tokens */
  --rule-group-surface: linear-gradient(160deg, rgba(76, 132, 248, 0.18), rgba(15, 23, 42, 0.08)), var(--color-surface-rule-group);
  --rule-group-shadow: 0 20px 40px rgba(8, 15, 35, 0.37);
  --rule-card-surface: linear-gradient(155deg, rgba(76, 132, 248, 0.22), rgba(15, 23, 42, 0.05)), var(--color-surface-rule-card);
  --rule-card-hover-surface: linear-gradient(155deg, rgba(96, 165, 250, 0.28), rgba(15, 23, 42, 0.1)), var(--color-surface-rule-card-hover);
  --rule-card-shadow: 0 18px 36px rgba(8, 15, 35, 0.45);

  /* Borders */
  --color-border-subtle: #1b2a43;
  --color-border: #2c4065;
  --color-border-strong: #31466c;
  --color-border-focus: rgba(59, 130, 246, 0.45);

  /* Text */
  --color-text-primary: #f5f7ff;
  --color-text-secondary: #aebbd4;
  --color-text-muted: #8492af;
  --color-text-inverse: #0b1220;
  --color-text-on-strong: #ffffff;

  /* Accents */
  --color-accent: #3b82f6;
  --color-accent-strong: #2563eb;
  --color-accent-soft: rgba(59, 130, 246, 0.18);
  --color-success: #34d399;
  --color-success-strong: #22c55e;
  --color-danger: #f87171;
  --color-danger-strong: #ef4444;
  --color-warning: #fbbf24;

  /* Utility tokens */
  --color-navbar: #121d33;
  --color-selection-strong: #4c84f8;
  --color-selection-soft: rgba(76, 132, 248, 0.28);
  --color-selection-flash: rgba(96, 165, 250, 0.45);
  --shadow-elevated: 0 16px 40px rgba(8, 15, 35, 0.5);

  /* Component aliases */
  --bg: var(--color-surface-canvas);
  --panel: var(--color-surface-panel);
  --panel-alt: var(--color-surface-panel-elevated);
  --panel-hover: var(--color-surface-panel-hover);
  --toggle-bg: var(--color-surface-panel-soft);
  --ink: var(--color-text-primary);
  --muted: var(--color-text-secondary);
  --muted-strong: var(--color-text-muted);
  --ink-inverse: var(--color-text-inverse);
  --ink-contrast: var(--color-text-on-strong);

  --accent: var(--color-accent);
  --accent-hi: var(--color-accent-strong);
  --accent-soft: var(--color-accent-soft);
  --danger: var(--color-danger);
  --danger-hi: var(--color-danger-strong);
  --success: var(--color-success);
  --success-hi: var(--color-success-strong);

  --navbar-bg: var(--color-navbar);
  --navbar-divider: linear-gradient(
    to bottom,
    rgba(230, 232, 238, 0) 0%,
    rgba(230, 232, 238, 0.43) 50%,
    rgba(230, 232, 238, 0) 100%
  );

  --grid-border: var(--color-border);
  --grid-border-strong: var(--color-border-strong);
  --grid-border-subtle: var(--color-border-subtle);

  --header-fill: var(--panel-alt);
  --header-fill-2: var(--panel);
  --header-row-bg: var(--panel-hover);

  --spacer: var(--color-surface-panel-muted);
  --table-cell-bg: var(--color-surface-table);
  --table-label-bg: var(--color-surface-table-label);
  --table-label-hover: var(--color-surface-table-label-hover);
  --table-text-shadow: 0 1px 1px rgba(8, 15, 35, 0.7);
  --entity-divider: #4f6286;

  --selection-color: var(--color-selection-strong);
  --selection-overlay: var(--color-selection-soft);
  --selection-flash: var(--color-selection-flash);
  --loading-overlay: rgba(15, 23, 42, 0.45);

  --btn-bg: #1a2c4a;
  --btn-hover-bg: #21395b;
  --btn-border: var(--grid-border);
  --btn-close-filter: brightness(0) invert(1);

  --panel-card-bg: var(--panel-alt);
  --popover-border: var(--grid-border-strong);
  --swatch-border: var(--grid-border);

  --chip-bg: var(--color-surface-chip);
  --chip-color: #d7e4ff;

  /* Form controls */
  --form-control-bg: var(--panel-card-bg);
  --form-control-border: var(--grid-border);
  --form-control-focus-border: var(--accent);
  --form-control-placeholder: var(--muted-strong);
  --form-control-disabled-bg: var(--spacer);
  --form-control-disabled-color: var(--muted);

  /* Dropdowns and menus */
  --dropdown-bg: var(--panel-card-bg);
  --dropdown-color: var(--ink);
  --dropdown-border: var(--grid-border);
  --dropdown-hover-bg: var(--panel-hover);
  --dropdown-hover-color: var(--ink);
  --dropdown-active-bg: var(--accent);
  --dropdown-active-color: var(--ink-contrast);
  --dropdown-disabled-color: var(--muted-strong);
  --dropdown-header-color: var(--muted);
  --dropdown-divider: rgba(148, 163, 184, 0.22);
  --dropdown-shadow: 0 24px 55px rgba(8, 15, 35, 0.55);

  /* List group tokens */
  --list-bg: var(--panel);
  --list-color: var(--ink);
  --list-border: var(--grid-border);
  --list-hover-bg: var(--panel-hover);
  --list-hover-color: var(--ink);
  --list-active-bg: var(--accent);
  --list-active-color: var(--ink-contrast);
  --list-active-border: var(--accent);
  --list-disabled-bg: var(--spacer);
  --list-disabled-color: var(--muted);
  --list-muted-color: var(--muted);

  /* Overlays */
  --tooltip-bg: rgba(15, 23, 42, 0.94);
  --tooltip-color: var(--ink-contrast);
  --tooltip-border: rgba(59, 76, 110, 0.6);
  --tooltip-shadow: 0 18px 45px rgba(8, 15, 35, 0.55);

  --switch-track: #24354f;
  --switch-track-border: #2d4464;
  --switch-track-active: var(--success-hi);
  --switch-thumb: #ffffff;

  --rule-row-bg: #233a5d;
  --rule-row-hover-bg: #2c4d79;

  --rule-group-bg: var(--color-surface-rule-group);
  --rule-group-border: var(--grid-border);

  --rule-card-bg: var(--color-surface-rule-card);
  --rule-card-border: var(--grid-border);
  --rule-card-hover: var(--color-surface-rule-card-hover);
  --rule-card-disabled-bg: #111a2c;
  --rule-card-disabled-border: var(--grid-border-subtle);

  --border-translucent: rgba(36, 52, 82, 0.65);

  /* Bootstrap variable bridge */
  --bs-body-bg: var(--bg);
  --bs-body-color: var(--ink);
  --bs-heading-color: var(--ink);
  --bs-emphasis-color: var(--ink);
  --bs-secondary-color: var(--muted);
  --bs-tertiary-color: var(--muted-strong);
  --bs-secondary-bg: var(--panel);
  --bs-tertiary-bg: var(--panel-alt);
  --bs-border-color: var(--grid-border);
  --bs-border-color-translucent: var(--border-translucent);
  --bs-link-color: var(--accent);
  --bs-link-hover-color: var(--accent-hi);

  --bs-form-control-bg: var(--form-control-bg);
  --bs-form-control-color: var(--ink);
  --bs-form-control-border-color: var(--form-control-border);
  --bs-form-control-focus-bg: var(--form-control-bg);
  --bs-form-control-focus-color: var(--ink);
  --bs-form-control-focus-border-color: var(--form-control-focus-border);
  --bs-form-control-focus-box-shadow: 0 0 0 2px var(--color-border-focus);
  --bs-form-control-disabled-bg: var(--form-control-disabled-bg);
  --bs-form-control-disabled-color: var(--form-control-disabled-color);
  --bs-form-control-placeholder-color: var(--form-control-placeholder);

  --bs-form-select-bg: var(--form-control-bg);
  --bs-form-select-color: var(--ink);
  --bs-form-select-border-color: var(--form-control-border);
  --bs-form-select-focus-border-color: var(--form-control-focus-border);
  --bs-form-select-focus-box-shadow: 0 0 0 2px var(--color-border-focus);

  --bs-form-check-bg: var(--form-control-bg);
  --bs-form-check-border-color: var(--form-control-border);
  --bs-form-check-checked-bg: var(--accent);
  --bs-form-check-checked-border-color: var(--accent);
  --bs-form-check-focus-border-color: var(--form-control-focus-border);
  --bs-form-check-focus-box-shadow: 0 0 0 2px var(--color-border-focus);

  --bs-dropdown-bg: var(--dropdown-bg);
  --bs-dropdown-color: var(--dropdown-color);
  --bs-dropdown-border-color: var(--dropdown-border);
  --bs-dropdown-box-shadow: var(--dropdown-shadow);
  --bs-dropdown-link-color: var(--dropdown-color);
  --bs-dropdown-link-hover-color: var(--dropdown-hover-color);
  --bs-dropdown-link-hover-bg: var(--dropdown-hover-bg);
  --bs-dropdown-link-active-bg: var(--dropdown-active-bg);
  --bs-dropdown-link-active-color: var(--dropdown-active-color);
  --bs-dropdown-link-disabled-color: var(--dropdown-disabled-color);
  --bs-dropdown-divider-bg: var(--dropdown-divider);
  --bs-dropdown-header-color: var(--dropdown-header-color);

  --bs-list-group-bg: var(--list-bg);
  --bs-list-group-color: var(--list-color);
  --bs-list-group-border-color: var(--list-border);
  --bs-list-group-action-color: var(--list-muted-color);
  --bs-list-group-action-hover-color: var(--list-hover-color);
  --bs-list-group-action-hover-bg: var(--list-hover-bg);
  --bs-list-group-action-active-color: var(--list-hover-color);
  --bs-list-group-action-active-bg: var(--list-hover-bg);
  --bs-list-group-disabled-bg: var(--list-disabled-bg);
  --bs-list-group-disabled-color: var(--list-disabled-color);
  --bs-list-group-active-bg: var(--list-active-bg);
  --bs-list-group-active-color: var(--list-active-color);
  --bs-list-group-active-border-color: var(--list-active-border);

  --bs-tooltip-bg: var(--tooltip-bg);
  --bs-tooltip-color: var(--tooltip-color);

  --bs-popover-bg: var(--panel-card-bg);
  --bs-popover-border-color: var(--popover-border);
  --bs-popover-header-bg: var(--header-fill);
  --bs-popover-header-color: var(--ink);
  --bs-popover-body-color: var(--ink);
  --bs-popover-arrow-color: var(--panel-card-bg);
  --bs-popover-arrow-border: var(--popover-border);

  --bs-btn-close-color: var(--ink);
  --bs-btn-close-opacity: 0.8;
  --bs-offcanvas-bg: var(--panel-card-bg);
  --bs-offcanvas-color: var(--ink);
  --bs-offcanvas-border-color: var(--grid-border-strong);
  --bs-modal-bg: var(--panel-card-bg);
  --bs-modal-color: var(--ink);
  --bs-modal-border-color: var(--grid-border);
  --bs-modal-header-border-color: var(--grid-border);
  --bs-modal-footer-border-color: var(--grid-border);
  --bs-modal-footer-bg: var(--panel);
}

/*
  Vanilla light theme
  -------------------
  A clean, high-contrast palette tuned for daylight viewing. The palette keeps
  the token structure identical to the dark theme so the application can switch
  themes by simply toggling the `data-theme` attribute on `<html>`.
*/
:root[data-theme="vanilla-light"] {
  color-scheme: light;

  /* Core surfaces */
  --color-surface-canvas: #f5f7fb;
  --color-surface-panel: #ffffff;
  --color-surface-panel-elevated: #f1f5ff;
  --color-surface-panel-hover: #e8f0ff;
  --color-surface-panel-soft: #f7f9ff;
  --color-surface-panel-muted: #edf2fb;
  --color-surface-table: #ffffff;
  --color-surface-table-label: #eef4ff;
  --color-surface-table-label-hover: #dae7ff;
  --color-surface-chip: #dbeafe;

  /* Rule surfaces */
  --color-surface-rule-group: var(--color-surface-panel-elevated);
  --color-surface-rule-card: var(--color-surface-panel);
  --color-surface-rule-card-hover: #f8fbff;

  /* Rule presentation tokens */
  --rule-group-surface: linear-gradient(160deg, rgba(37, 99, 235, 0.08), rgba(148, 163, 184, 0.04)), var(--color-surface-rule-group);
  --rule-group-shadow: 0 18px 38px rgba(15, 23, 42, 0.12);
  --rule-card-surface: linear-gradient(155deg, rgba(37, 99, 235, 0.1), rgba(148, 163, 184, 0.04)), var(--color-surface-rule-card);
  --rule-card-hover-surface: linear-gradient(155deg, rgba(59, 130, 246, 0.16), rgba(148, 163, 184, 0.08)), var(--color-surface-rule-card-hover);
  --rule-card-shadow: 0 14px 30px rgba(15, 23, 42, 0.14);

  /* Borders */
  --color-border-subtle: #e2e8f0;
  --color-border: #cbd5e1;
  --color-border-strong: #94a3b8;
  --color-border-focus: rgba(37, 99, 235, 0.35);

  /* Text */
  --color-text-primary: #0f172a;
  --color-text-secondary: #475569;
  --color-text-muted: #64748b;
  --color-text-inverse: #ffffff;
  --color-text-on-strong: #ffffff;

  /* Accents */
  --color-accent: #2563eb;
  --color-accent-strong: #1d4ed8;
  --color-accent-soft: rgba(37, 99, 235, 0.14);
  --color-success: #16a34a;
  --color-success-strong: #15803d;
  --color-danger: #dc2626;
  --color-danger-strong: #b91c1c;
  --color-warning: #f59e0b;

  /* Utility tokens */
  --color-navbar: #ffffff;
  --color-selection-strong: #2563eb;
  --color-selection-soft: rgba(37, 99, 235, 0.18);
  --color-selection-flash: rgba(191, 219, 254, 0.75);
  --shadow-elevated: 0 12px 30px rgba(15, 23, 42, 0.12);

  /* Component aliases */
  --bg: var(--color-surface-canvas);
  --panel: var(--color-surface-panel);
  --panel-alt: var(--color-surface-panel-elevated);
  --panel-hover: var(--color-surface-panel-hover);
  --toggle-bg: var(--color-surface-panel-soft);
  --ink: var(--color-text-primary);
  --muted: var(--color-text-secondary);
  --muted-strong: var(--color-text-muted);
  --ink-inverse: var(--color-text-inverse);
  --ink-contrast: var(--color-text-on-strong);

  --accent: var(--color-accent);
  --accent-hi: var(--color-accent-strong);
  --accent-soft: var(--color-accent-soft);
  --danger: var(--color-danger);
  --danger-hi: var(--color-danger-strong);
  --success: var(--color-success);
  --success-hi: var(--color-success-strong);

  --navbar-bg: var(--color-navbar);
  --navbar-divider: linear-gradient(
    to bottom,
    rgba(148, 163, 184, 0) 0%,
    rgba(81, 89, 101, 0.68) 50%,
    rgba(148, 163, 184, 0) 100%
  );

  --grid-border: var(--color-border);
  --grid-border-strong: var(--color-border-strong);
  --grid-border-subtle: var(--color-border-subtle);

  --header-fill: #f0f4ff;
  --header-fill-2: #e7ecf6;
  --header-row-bg: #e5ecf8;

  --spacer: var(--color-surface-panel-muted);
  --table-cell-bg: var(--color-surface-panel);
  --table-label-bg: var(--color-surface-table-label);
  --table-label-hover: var(--color-surface-table-label-hover);
  --table-text-shadow: none;
  --entity-divider: #cbd5f5;

  --selection-color: var(--color-selection-strong);
  --selection-overlay: var(--color-selection-soft);
  --selection-flash: var(--color-selection-flash);
  --loading-overlay: rgba(148, 163, 184, 0.25);

  --btn-bg: #e2e8f0;
  --btn-hover-bg: #cbd5f5;
  --btn-border: var(--grid-border);
  --btn-close-filter: none;

  --panel-card-bg: var(--panel);
  --popover-border: var(--grid-border);
  --swatch-border: #cbd5e1;

  --chip-bg: var(--color-surface-chip);
  --chip-color: #1d4ed8;

  /* Form controls */
  --form-control-bg: var(--panel);
  --form-control-border: var(--grid-border);
  --form-control-focus-border: var(--accent);
  --form-control-placeholder: var(--muted-strong);
  --form-control-disabled-bg: var(--spacer);
  --form-control-disabled-color: var(--muted);

  /* Dropdowns and menus */
  --dropdown-bg: var(--panel);
  --dropdown-color: var(--ink);
  --dropdown-border: var(--grid-border);
  --dropdown-hover-bg: var(--panel-hover);
  --dropdown-hover-color: var(--ink);
  --dropdown-active-bg: var(--accent);
  --dropdown-active-color: var(--ink-contrast);
  --dropdown-disabled-color: var(--muted-strong);
  --dropdown-header-color: var(--muted);
  --dropdown-divider: var(--grid-border-subtle);
  --dropdown-shadow: 0 16px 40px rgba(15, 23, 42, 0.18);

  /* List group tokens */
  --list-bg: var(--panel);
  --list-color: var(--ink);
  --list-border: var(--grid-border);
  --list-hover-bg: var(--panel-hover);
  --list-hover-color: var(--ink);
  --list-active-bg: var(--accent);
  --list-active-color: var(--ink-contrast);
  --list-active-border: var(--accent);
  --list-disabled-bg: var(--spacer);
  --list-disabled-color: var(--muted);
  --list-muted-color: var(--muted);

  /* Overlays */
  --tooltip-bg: rgba(15, 23, 42, 0.92);
  --tooltip-color: #f8fafc;
  --tooltip-border: rgba(15, 23, 42, 0.2);
  --tooltip-shadow: 0 18px 40px rgba(15, 23, 42, 0.18);

  --switch-track: #dbeafe;
  --switch-track-border: #bfdbfe;
  --switch-track-active: var(--success-hi);
  --switch-thumb: #ffffff;

  --rule-row-bg: #f1f5f9;
  --rule-row-hover-bg: #e2e8f0;

  --rule-group-bg: var(--color-surface-rule-group);
  --rule-group-border: var(--grid-border);

  --rule-card-bg: var(--color-surface-rule-card);
  --rule-card-border: var(--grid-border-subtle);
  --rule-card-hover: var(--color-surface-rule-card-hover);
  --rule-card-disabled-bg: #f1f5f9;
  --rule-card-disabled-border: var(--grid-border-subtle);
  --border-translucent: rgba(148, 163, 184, 0.35);
}

html {
  font-size: var(--base-font-size);
}

html, body {
  height: 100%;
  margin: 0;
  padding: 0 !important;
  background: var(--bg);
  color: var(--ink);
  font-family: ui-sans-serif, system-ui, -apple-system, Segoe UI, Roboto, Helvetica, Arial, sans-serif;
  overflow: hidden;
}

.app {
  height: calc(100vh - var(--navbar-height, 0px));
  margin-top: var(--navbar-height, 0px);
  box-sizing: border-box;
  overflow: hidden;
}

/* Form controls */
.form-control,
.form-select {
  background-color: var(--form-control-bg);
  color: var(--ink);
  border-color: var(--form-control-border);
}

.form-control:focus,
.form-select:focus {
  color: var(--ink);
  background-color: var(--form-control-bg);
  border-color: var(--form-control-focus-border);
  box-shadow: 0 0 0 2px var(--color-border-focus);
}

.form-control::placeholder {
  color: var(--form-control-placeholder);
  opacity: 1;
}

.form-control:disabled,
.form-control[readonly],
.form-select:disabled {
  background-color: var(--form-control-disabled-bg);
  color: var(--form-control-disabled-color);
}

.form-control-plaintext {
  color: var(--ink);
}

.form-check-input {
  background-color: var(--form-control-bg);
  border-color: var(--form-control-border);
}

.form-check-input:checked {
  background-color: var(--accent);
  border-color: var(--accent);
}

.form-check-input:focus {
  border-color: var(--form-control-focus-border);
  box-shadow: 0 0 0 2px var(--color-border-focus);
}

.form-check-input:disabled {
  background-color: var(--form-control-disabled-bg);
  border-color: var(--form-control-border);
}

.form-control[type="file"] {
  color: var(--ink);
}

.form-control[type="file"]::file-selector-button,
.form-control[type="file"]::-webkit-file-upload-button {
  background: var(--btn-bg);
  border: 1px solid var(--btn-border);
  border-radius: 6px;
  color: var(--ink);
  padding: 0.375rem 0.75rem;
  margin-right: 12px;
  transition: background-color .15s ease, border-color .15s ease, color .15s ease;
}

.form-control[type="file"]::file-selector-button:hover,
.form-control[type="file"]::file-selector-button:focus,
.form-control[type="file"]::-webkit-file-upload-button:hover,
.form-control[type="file"]::-webkit-file-upload-button:focus {
  background: var(--btn-hover-bg);
  border-color: var(--grid-border-strong);
  color: var(--ink);
}

.form-control[type="file"]::file-selector-button:active,
.form-control[type="file"]::-webkit-file-upload-button:active {
  background: var(--accent);
  border-color: var(--accent);
  color: var(--ink-contrast);
}

/* Dropdowns */
.dropdown-menu {
  background-color: var(--dropdown-bg);
  border: 1px solid var(--dropdown-border);
  box-shadow: var(--dropdown-shadow);
  color: var(--dropdown-color);
  padding: 0.5rem 0;
}

.dropdown-item {
  color: var(--dropdown-color);
  transition: background-color .12s ease, color .12s ease;
}

.dropdown-item:hover,
.dropdown-item:focus {
  color: var(--dropdown-hover-color);
  background-color: var(--dropdown-hover-bg);
}

.dropdown-item.active,
.dropdown-item:active {
  color: var(--dropdown-active-color);
  background-color: var(--dropdown-active-bg);
}

.dropdown-item.disabled,
.dropdown-item:disabled {
  color: var(--dropdown-disabled-color);
}

.dropdown-divider {
  border-color: var(--dropdown-divider);
  opacity: 1;
}

.dropdown-header {
  color: var(--dropdown-header-color);
}

/* List groups */
.list-group {
  --bs-list-group-bg: var(--list-bg);
  --bs-list-group-color: var(--list-color);
  --bs-list-group-border-color: var(--list-border);
  --bs-list-group-action-color: var(--list-muted-color);
  --bs-list-group-action-hover-color: var(--list-hover-color);
  --bs-list-group-action-hover-bg: var(--list-hover-bg);
  --bs-list-group-action-active-color: var(--list-hover-color);
  --bs-list-group-action-active-bg: var(--list-hover-bg);
  --bs-list-group-disabled-bg: var(--list-disabled-bg);
  --bs-list-group-disabled-color: var(--list-disabled-color);
  --bs-list-group-active-bg: var(--list-active-bg);
  --bs-list-group-active-color: var(--list-active-color);
  --bs-list-group-active-border-color: var(--list-active-border);
}

.list-group-item {
  background-color: var(--list-bg);
  border-color: var(--list-border);
  color: var(--list-color);
  transition: background-color .12s ease, color .12s ease, border-color .12s ease;
}

.list-group-item:hover,
.list-group-item:focus {
  background-color: var(--list-hover-bg);
  color: var(--list-hover-color);
}

.list-group-item.active {
  background-color: var(--list-active-bg);
  border-color: var(--list-active-border);
  color: var(--list-active-color);
}

.list-group-item.disabled,
.list-group-item:disabled {
  background-color: var(--list-disabled-bg);
  color: var(--list-disabled-color);
}

/* Tooltips and popovers */
.tooltip .tooltip-inner {
  background: var(--tooltip-bg);
  color: var(--tooltip-color);
  border-radius: 6px;
  border: 1px solid var(--tooltip-border);
  box-shadow: var(--tooltip-shadow);
}

.tooltip .tooltip-arrow::before {
  border-top-color: var(--tooltip-bg) !important;
  border-right-color: var(--tooltip-bg) !important;
  border-bottom-color: var(--tooltip-bg) !important;
  border-left-color: var(--tooltip-bg) !important;
}

.popover {
  background: var(--bs-popover-bg);
  border: 1px solid var(--bs-popover-border-color);
  box-shadow: var(--shadow-elevated);
  color: var(--bs-popover-body-color);
}

.popover-header {
  background: var(--bs-popover-header-bg);
  color: var(--bs-popover-header-color);
  border-bottom: 1px solid var(--bs-popover-border-color);
}

.popover-body {
  color: var(--bs-popover-body-color);
}

.title { font-weight: 800; letter-spacing: .2px; }
.subtitle { color: var(--muted); font-size: var(--font-size-12); }
.navbar .subtitle { font-size: var(--font-size-18); padding-top: 0; }
#title { padding-bottom: 0; }

.navbar-logo {
  padding-bottom: 0.5rem;
  padding-top: 0.5rem;
  height: 50px;
  width: auto;
}
.navbar-branding { gap: 0.75rem; }
.navbar-divider {
  align-self: stretch;
  width: 1px;
  background: var(--navbar-divider);
}

.theme-toggle,
.navbar-action-toggle {
  align-items: center;
  background: var(--toggle-bg);
  border: 1px solid var(--grid-border);
  border-radius: 999px;
  color: var(--ink);
  cursor: pointer;
  display: inline-flex;
  height: 34px;
  justify-content: center;
  padding: 0;
  transition: background-color .12s ease, border-color .12s ease, color .12s ease, box-shadow .12s ease;
  width: 34px;
}

.theme-toggle:hover,
.theme-toggle:focus,
.navbar-action-toggle:hover,
.navbar-action-toggle:focus {
  background: var(--panel-hover);
  border-color: var(--grid-border-strong);
  color: var(--ink);
}

.theme-toggle:focus-visible,
.navbar-action-toggle:focus-visible {
  outline: none;
  box-shadow: 0 0 0 2px var(--color-border-focus);
}

.theme-toggle .bi,
.navbar-action-toggle .bi {
  font-size: 1rem;
  line-height: 1;
}

.user-menu {
  position: relative;
}

.user-menu-toggle {
  align-items: center;
  background: var(--toggle-bg);
  border: 1px solid var(--grid-border);
  border-radius: 999px;
  color: var(--ink);
  cursor: pointer;
  display: inline-flex;
  height: 36px;
  justify-content: center;
  padding: 0;
  transition: background-color .12s ease, border-color .12s ease, color .12s ease, box-shadow .12s ease;
  width: 36px;
}

.user-menu-toggle:hover,
.user-menu-toggle:focus {
  background: var(--panel-hover);
  border-color: var(--grid-border-strong);
  color: var(--ink);
}

.user-menu-toggle:focus-visible {
  outline: none;
  box-shadow: 0 0 0 2px var(--color-border-focus);
}

.user-menu-toggle::after {
  display: none;
}

.user-menu-avatar {
  display: inline-block;
  width: 20px;
  height: 20px;
  background: url('images/person.svg') no-repeat center / contain;
}

/* Tint the avatar with the surrounding text color when mask support is available. */
@supports ((mask: url()) or (-webkit-mask: url())) {
  .user-menu-avatar {
    background-color: currentColor;
    background-image: none;
    mask: url('images/person.svg') no-repeat center / contain;
    -webkit-mask: url('images/person.svg') no-repeat center / contain;
  }
}

/* Gear icon shared by aggregation controls and rule cards. */
.icon-gear {
  display: inline-block;
  width: 1rem;
  height: 1rem;
  background: url('images/gear.svg') no-repeat center / contain;
  vertical-align: middle;
}

@supports ((mask: url()) or (-webkit-mask: url())) {
  .icon-gear {
    background-color: currentColor;
    background-image: none;
    mask: url('images/gear.svg') no-repeat center / contain;
    -webkit-mask: url('images/gear.svg') no-repeat center / contain;
  }
}

/* Ensure the dropdown provides enough space for the profile summary. */
.user-menu .dropdown-menu {
  min-width: 16rem;
}

/* Profile summary shown at the top of the user menu. */
.user-menu-profile {
  max-width: 18rem;
}

.user-menu-org,
.user-menu-email {
  display: block;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.user-menu-org {
  color: var(--dropdown-color);
  font-size: var(--font-size-18);
  font-weight: 600;
  line-height: 1.2;
}

.user-menu-email {
  color: var(--muted);
  font-size: var(--font-size-16);
  line-height: 1.2;
  margin-top: 0.125rem;
  min-height: 1rem;
}

/* Set custom background color for the fixed top navbar */
.navbar.fixed-top {
  background-color: var(--navbar-bg) !important;
  border-bottom: 1px solid var(--grid-border-subtle);
  --bs-navbar-padding-y: 0rem;
}

.navbar .navbar-brand,
.navbar .navbar-text {
  color: var(--ink);
}

.navbar .navbar-brand:focus,
.navbar .navbar-brand:hover,
.navbar .navbar-text:focus,
.navbar .navbar-text:hover {
  color: var(--ink);
}

.view-switch {
  display: flex;
  gap: 6px;
  background: var(--toggle-bg);
  padding: 4px;
  border: 1px solid var(--grid-border);
  border-radius: 10px;
  box-shadow: inset 0 0 0 1px rgba(255, 255, 255, 0.03);
}
.aggregate-toggle {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 4px 8px;
  border: 1px solid var(--grid-border);
  border-radius: 10px;
  font-size: var(--font-size-12);
  cursor: default;
  background: var(--toggle-bg);
}
#aggregateToggle {
  background: var(--toggle-bg);
}
.aggregate-toggle.active {
  border-color: var(--success-hi);
  box-shadow: 0 0 0 1px rgba(34, 197, 94, 0.35);
}
.aggregate-toggle.disabled {
  opacity: 0.55;
}

/* Tooltip styling for disabled Report Manager button */
.report-tooltip .tooltip-inner {
  max-width: 240px;
  white-space: normal;
}

/* Ensure toggle uses success/danger colors and retains hover styles */
.aggregate-toggle .btn-success {
  background: var(--success);
  border-color: var(--success);
  color: var(--ink-contrast);
}
.aggregate-toggle .btn-success:hover {
  background: var(--success-hi);
  border-color: var(--success-hi);
}
.aggregate-toggle .btn-danger {
  background: var(--danger);
  border-color: var(--danger);
  color: var(--ink-contrast);
}
.aggregate-toggle .btn-danger:hover {
  background: var(--danger-hi);
  border-color: var(--danger-hi);
}
.aggregate-toggle .toggle-handle.btn-default {
  background: var(--switch-thumb);
  border-color: var(--switch-track-border);
  border-radius: 4px;
}
.btn.toggle {
  background: transparent;
  border: none;
  padding: 6px 10px;
  border-radius: 8px;
  font-size: var(--font-size-12);
  font-weight: 700;
  color: var(--muted);
  cursor: pointer;
  transition: background-color .15s ease, color .15s ease;
}
.btn.toggle:hover { background: var(--accent-soft); color: var(--ink); }
.btn.toggle:focus-visible {
  outline: none;
  box-shadow: 0 0 0 2px var(--color-border-focus);
}
.btn.toggle.active { background: var(--accent); color: var(--ink-contrast); }

/* Shared dark card styling for grid and rule panels */
.panel-card {
  --bs-card-bg: var(--panel-card-bg);
  background-color: var(--panel-card-bg);
  border: 1px solid var(--grid-border);
  border-radius: 0;
  box-shadow: var(--shadow-elevated);
}

.table-actions-toggle {
  opacity: 0;
  pointer-events: none;
  transition: opacity .2s;
  z-index: 5;
}

.grid-card:hover .table-actions-toggle {
  opacity: 1;
  pointer-events: auto;
}

.grid-card .table-actions {
  width: 250px;
  position: absolute;
  top: 0;
  right: 0;
  bottom: 0;
  background: var(--panel-card-bg);
  color: var(--ink);
  border-left: 1px solid var(--grid-border);
}

table.grid { border-collapse: separate; border-spacing: 0; width: max-content; min-width: 100%; }

.grid th, .grid td {
  border-right: 1px solid var(--grid-border);
  border-bottom: 1px solid var(--grid-border);
  padding: 6px 10px;
  white-space: nowrap;
  user-select: none;
  cursor: default;
}

.grid th {
  position: sticky;
  top: 0;
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.04), rgba(15, 23, 42, 0.22)), var(--header-fill);
  color: var(--ink);
  font-weight: 700;
  z-index: 3;
  font-size: var(--font-size-13);
  border-bottom: 1px solid var(--grid-border-strong);
  box-shadow: inset 0 -1px 0 0 var(--grid-border-strong), 0 2px 10px rgba(8, 15, 35, 0.25);
}

.grid tr.header-entities th { text-align: center; border-top: 1px solid var(--grid-border); }
.grid tr.header-metrics th {
  font-weight: 600; text-align: center;
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.05), rgba(15, 23, 42, 0.26)), var(--header-fill-2);
  top: var(--head2-top); z-index: 4; border-bottom: 2px solid var(--grid-border-strong);
}

.grid tr.header-entities th.label-col,
.grid tr.header-metrics th.row-spacer {
  position: static;
  top: auto;
  z-index: auto;
}

.grid th.row-spacer {
  background: var(--header-fill-2);
  color: var(--muted);
  font-weight: 700;
  border-right: 1px solid var(--grid-border-strong);
}

.grid th.label-col {
  background: var(--table-label-bg);
  color: var(--ink);
  font-weight: 600;
  border-right: 2px solid var(--grid-border-strong);
  box-shadow: 2px 0 8px rgba(8, 15, 35, 0.28);
}

.grid tr.header-entities th { font-size: var(--font-size-18); font-weight: 700; letter-spacing: .3px; }
.grid tr.header-metrics th { font-size: var(--font-size-14); }

.grid tbody td.label-col.body {
  position: sticky;
  left: 0;
  z-index: 2;
  background: var(--table-label-bg);
  color: var(--ink);
  font-weight: 700;
  border-right: 2px solid var(--grid-border-strong);
  border-bottom: 2px solid var(--grid-border-strong);
  box-shadow: inset -1px 0 0 var(--grid-border-strong), inset 0 -1px 0 rgba(255, 255, 255, 0.03);
}
.grid tbody tr:first-child td.label-col.body { border-top: 2px solid var(--grid-border-strong); }
.grid tbody tr:last-child td.label-col.body { border-bottom: 2px solid var(--grid-border-strong); }


.grid tbody td.header-cell {
  background: var(--header-row-bg);
  color: var(--ink);
  font-weight: 800;
  font-size: var(--font-size-16);
  user-select: none;
  cursor: default;
  pointer-events: none;
  border-bottom: 2px solid var(--grid-border-strong);
  position: sticky;
  left: 0;
  z-index: 1;
}

.grid tbody td.has-path {
  padding-left: calc(8px + var(--level) * 16px);
  position: relative;
}

.grid tbody td.has-path::before {
  content: '';
  position: absolute;
  left: calc(4px + (var(--level) - 1) * 16px);
  top: 0;
  bottom: 0;
  border-left: 2px solid var(--grid-border-strong);
}

.grid tbody td.label-col.body.has-path,
.grid tbody td.header-cell.has-path {
  border-bottom: none;
}

.grid tbody td.label-col.body.has-path {
  box-shadow: inset -1px 0 0 var(--grid-border-strong);
}

.grid tbody td.label-col.body.has-path::after,
.grid tbody td.header-cell.has-path::after {
  content: '';
  position: absolute;
  left: calc(4px + (var(--level) - 1) * 16px);
  right: 0;
  bottom: 0;
  border-bottom: 2px solid var(--grid-border-strong);
}


.grid tbody td {
  background: var(--table-cell-bg);
  font-variant-numeric: tabular-nums;
  position: relative;
  z-index: 0;
  color: var(--ink);
  text-shadow: var(--table-text-shadow);
  transition: background-color .12s ease;
}
.right { text-align: right; }
.entity-start { border-left: 3px solid var(--entity-divider) !important; }

.cell-selected {
  box-shadow: inset 0 0 0 9999px var(--selection-overlay), inset 0 0 0 2px var(--selection-color) !important;
}

.btn {
  background: var(--btn-bg);
  color: var(--ink);
  border: 1px solid var(--btn-border);
  padding: 6px 10px;
  border-radius: 8px;
  cursor: pointer;
  font-size: var(--font-size-12);
  font-weight: 600;
  transition: background-color .15s ease, border-color .15s ease, box-shadow .15s ease;
}
.btn:hover {
  background: var(--btn-hover-bg);
  border-color: var(--grid-border-strong);
}
.btn:focus-visible {
  outline: none;
  box-shadow: 0 0 0 2px var(--color-border-focus);
}
.btn-ghost { background: transparent; }
.btn.primary { border-color: var(--accent); background: var(--accent); color: var(--ink-contrast); }
.btn.primary:hover { background: var(--accent-hi); border-color: var(--accent-hi); }
.btn:disabled { opacity: 0.6; cursor: not-allowed; }

.btn-close {
  filter: var(--btn-close-filter, none);
}


/* SweetAlert2 prompt dialog */
.prompt-popup {
  background: var(--panel);
  color: var(--ink);
  border: 1px solid var(--grid-border);
  border-radius: 10px;
}

.prompt-popup .swal2-title,
.prompt-popup .swal2-html-container {
  color: var(--ink);
}

.prompt-popup .prompt-actions {
  display: flex;
  gap: 8px;
  justify-content: center;
}




/* Popover */
.rule-popover {
  position: fixed;
  z-index: 1080;
  display: none;
  max-width: 340px;
  --bs-popover-bg: var(--panel);
  --bs-popover-border-color: var(--popover-border);
  --bs-popover-color: var(--ink);
  --bs-popover-header-bg: var(--header-fill);
  --bs-popover-header-color: var(--ink);
  --bs-popover-arrow-color: var(--header-fill);
  --bs-popover-arrow-border: var(--bs-popover-border-color);
}
.rule-popover .popover-body { padding: 0.75rem; }
.rule-popover .popover-arrow { position: absolute; }

.hidden { display: none; }

/* Utility class ensuring helper popovers overlay the rule editor */
.field-popover {
  z-index: 1100;
}

/* Show blocked cursor for read-only or disabled controls */
.cursor-blocked {
  cursor: not-allowed;
}

/* Prevent users from selecting text in read-only controls */
.no-select {
  user-select: none;
}

/* Global loading overlay */
.loading-overlay {
  position: fixed;
  inset: 0;
  background: var(--loading-overlay);
  backdrop-filter: blur(4px);
  /* Use a z-index higher than Bootstrap modals so uploads blur the report manager */
  z-index: 2000;
  display: none;
  cursor: wait;
}
.loading-overlay.visible {
  display: block;
}

/* Reusable square element for color display */
.color-swatch {
  width: 16px;
  height: 16px;
  border-radius: 4px;
  border: 1px solid var(--swatch-border);
  cursor: pointer;
}

/* Larger variant used in popovers */
.color-swatch-lg {
  width: 32px;
  height: 32px;
}

/*
  Example theme override
  ----------------------
  Uncomment or copy this block into a separate stylesheet to spin up a new
  theme pack. Applying `data-theme="aurora"` on the `<html>` element switches
  the palette at runtime.
*/
:root[data-theme="aurora"] {
  --color-surface-canvas: #111320;
  --color-surface-panel: #172136;
  --color-surface-panel-elevated: #1c2a45;
  --color-surface-panel-hover: #243659;
  --color-accent: #22d3ee;
  --color-accent-strong: #0ea5e9;
  --color-accent-soft: rgba(14, 165, 233, 0.22);
  --color-selection-strong: #38bdf8;
  --color-selection-soft: rgba(56, 189, 248, 0.28);
}


/* Share modal recipients field */
.share-email-field {
  min-height: calc(2.5rem + var(--bs-border-width, 1px) * 2);
  background-color: var(--form-control-bg);
  border-color: var(--form-control-border);
  color: var(--ink);
}

.share-email-field:focus-within {
  border-color: var(--form-control-focus-border);
  box-shadow: 0 0 0 2px var(--color-border-focus);
}

.share-email-field.is-invalid,
.share-email-field.is-invalid:focus-within {
  border-color: var(--danger);
  box-shadow: 0 0 0 2px rgba(248, 113, 113, 0.35);
}

.share-email-field .share-email-input {
  min-width: 12rem;
  flex: 1 0 10rem;
  background: transparent;
  color: inherit;
}

.share-email-field .share-email-input:focus {
  outline: none;
  box-shadow: none;
}

.share-email-field .share-email-input::placeholder {
  color: var(--form-control-placeholder);
}

.share-email-chip {
  padding: 0.25rem 0.5rem;
  background-color: var(--accent);
  color: var(--ink-contrast);
}

.share-email-chip .btn-close {
  width: 0.65rem;
  height: 0.65rem;
  font-size: 0.55rem;
  margin-left: 0.25rem;
}
