Private/Get-DhCssAzureDark.ps1

function Get-DhCssAzureDark {
    <#
    .SYNOPSIS Returns the :root variable block for the AzureDark theme.
               Called by Get-DhThemeCss which appends the shared structural CSS.
    #>

    return @'
:root {
  /* AzureDark — Microsoft Fluent Design System / Azure Portal (dark)
     Primary: #479EF5 (lightened for dark bg) Backgrounds: Office dark slate */

  --bg-page: #1B1A19;
  --bg-header: #1B1A19;
  --bg-surface: #252423;
  --bg-table: #201F1E;
  --bg-row-alt: #2D2C2B;
  --bg-row-hover: #3B3A39;
  --bg-row-sel: #004578;
  --bg-thead: #2D2C2B;

  --accent-primary: #479EF5;
  --accent-secondary: #2886DE;
  --accent-danger: #FC5F5F;
  --accent-warn: #FCE100;
  --accent-ok: #6CCB5F;

  --export-csv-bg: #0F2D12; --export-csv-fg: #6CCB5F; --export-csv-bdr: #1A4A1A;
  --export-xlsx-bg: #0F2D12; --export-xlsx-fg: #6CCB5F; --export-xlsx-bdr: #1A4A1A;
  --export-pdf-bg: #2D0F0F; --export-pdf-fg: #FC5F5F; --export-pdf-bdr: #4A1A1A;

  --text-primary: #F3F2F1;
  --text-secondary: #C8C6C4;
  --text-muted: #8A8886;
  --text-accent: #479EF5;
  --text-invert: #1B1A19;

  --border-subtle: #3B3A39;
  --border-medium: #484644;
  --border-strong: #479EF555;

  --font-ui: 'Segoe UI', 'Segoe UI Variable', system-ui, -apple-system, sans-serif;
  --font-mono: 'Cascadia Code', 'Cascadia Mono', 'Consolas', monospace;
  --font-display: 'Segoe UI', 'Segoe UI Variable', system-ui, -apple-system, sans-serif;

  --size-xs: 0.75rem;
  --size-sm: 0.85rem;
  --size-base: 0.9375rem;
  --size-md: 1.05rem;
  --size-lg: 1.30rem;
  --size-xl: 1.65rem;

  --weight-normal: 400;
  --weight-medium: 500;
  --weight-bold: 700;

  --space-xs: 4px;
  --space-sm: 8px;
  --space-md: 16px;
  --space-lg: 24px;
  --space-xl: 36px;

  --radius-sm: 4px;
  --radius-md: 8px;
  --radius-lg: 12px;

  --trans-fast: 150ms ease;
  --trans-normal: 250ms ease;

  --row-height: 40px;
  --header-height: 76px;
  --nav-height: 44px;

  --shadow-md: 0 4px 16px rgba(0,0,0,0.60);
  --shadow-glow: 0 0 16px rgba(71,158,245,0.18);

  --cell-ok-fg: #6CCB5F; --cell-ok-bg: rgba(108,203,95,0.10);
  --cell-warn-fg: #FCE100; --cell-warn-bg: rgba(252,225,0,0.09);
  --cell-danger-fg: #FC5F5F; --cell-danger-bg: rgba(252,95,95,0.10);

  --progress-track-bg: rgba(255,255,255,0.08);

  --nav-bg: #1B1A19;
  --nav-border: #3B3A39;
  --nav-title-fg: #605E5C;
  --nav-link-fg: #C8C6C4;
  --nav-link-hover-bg: rgba(71,158,245,0.08);
  --nav-link-hover-fg: #479EF5;
  --nav-active-bg: rgba(71,158,245,0.12);
  --nav-active-fg: #479EF5;
  --nav-active-border: rgba(71,158,245,0.40);

  --chart-container-bg: #201F1E;
  --chart-1: #479EF5; --chart-2: #6CCB5F; --chart-3: #FCE100; --chart-4: #FC5F5F;
  --chart-5: #C7A3F7; --chart-6: #F4A460; --chart-7: #40C4C4; --chart-8: #A3CF60;

  /* Header text — ensures legibility on both light and dark header backgrounds */
  --header-fg: #F3F2F1;
  --header-fg-muted: #C8C6C4;
}
'@

}