/* ============================================================================
   WORKFORCE DEMOCRACY PROJECT - CSS VARIABLES (Design Tokens)
   ============================================================================ */

:root {
  /* Primary palette */
  --primary-dark: #1e2a3a;
  --primary: #2c3e50;
  --primary-light: #3a5670;

  /* Accent colors */
  --accent-orange: #e67e22;
  --accent-purple: #9b59b6;
  --accent-blue: #3498db;

  /* Neutrals */
  --bg-light: #f8f9fa;
  --bg-white: #ffffff;
  --text-dark: #2c3e50;
  --text-muted: #6c757d;
  --border-color: #e9ecef;

  /* Extended neutrals (legacy sheets / dark-mode tab overrides) */
  --neutral-50: #f9fafb;
  --neutral-100: #f3f4f6;
  --neutral-200: #e5e7eb;
  --neutral-300: #d1d5db;
  --neutral-400: #9ca3af;
  --neutral-500: #6b7280;
  --neutral-600: #4b5563;
  --neutral-700: #374151;
  --neutral-800: #1f2937;
  --neutral-900: #111827;
  --slate-700: #334155;
  --slate-750: #475569;
  --slate-800: #1e293b;
  --slate-850: #0f172a;
  --slate-900: #0b1220;

  /* Chat panel (dark UI) */
  --chat-bg-deep: var(--slate-900);
  --chat-bg: var(--slate-850);
  --chat-panel: var(--slate-800);
  --chat-border: var(--slate-700);
  --chat-border-soft: var(--slate-750);
  --chat-text-soft: #e2e8f0;
  --chat-link: #90d0ff;

  /* Shadows */
  --shadow-sm: 0 2px 4px rgba(0, 0, 0, 0.05);
  --shadow-md: 0 4px 8px rgba(0, 0, 0, 0.1);
  --shadow-lg: 0 8px 16px rgba(0, 0, 0, 0.1);
  --shadow-xl: 0 12px 24px rgba(0, 0, 0, 0.12);

  /* Aliases for existing token names */
  --secondary: var(--accent-orange);
  --background: var(--bg-light);
  --card-bg: var(--bg-white);
  --text: var(--text-dark);
  --text-secondary: #495057;
  --text-light: var(--text-muted);
  --text-inverse: var(--bg-white);
  --surface: var(--bg-white);
  --surface-alt: #f1f3f5;
  --background-alt: #e9ecef;
  --bg-lightest: var(--bg-light);
  --bg-medium: #dee2e6;
  --border-light: var(--border-color);
  --border: #dee2e6;
  --primary-gradient: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
  --section-hero: linear-gradient(135deg, var(--bg-light) 0%, var(--background-alt) 100%);
  --section-civic: linear-gradient(135deg, var(--bg-light) 0%, var(--background-alt) 100%);
  --section-jobs: linear-gradient(135deg, var(--surface-alt) 0%, var(--bg-medium) 100%);
  --section-business: linear-gradient(135deg, var(--bg-light) 0%, var(--background-alt) 100%);
  --success: #27ae60;
  --warning: #f39c12;
  --error: #e74c3c;
  --info: var(--accent-blue);

  --space-xs: 0.25rem;
  --space-sm: 0.5rem;
  --space-md: 1rem;
  --space-lg: 1.5rem;
  --space-xl: 2rem;
  --space-2xl: 3rem;
  --space-3xl: 4rem;

  --font-family: Helvetica, -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  --font-size-xs: 0.75rem;
  --font-size-sm: 0.875rem;
  --font-size-base: 1rem;
  --font-size-lg: 1.125rem;
  --font-size-xl: 1.25rem;
  --font-size-2xl: 1.5rem;
  --font-size-3xl: 2rem;
  --font-size-4xl: 2.5rem;
  --font-weight-light: 300;
  --font-weight-normal: 400;
  --font-weight-medium: 500;
  --font-weight-semibold: 600;
  --font-weight-bold: 700;
  --font-weight-extrabold: 800;
  --line-height-tight: 1.2;
  --line-height-normal: 1.5;
  --line-height-relaxed: 1.75;

  --radius-sm: 0.25rem;
  --radius-md: 0.5rem;
  --radius-lg: 1rem;
  --radius-full: 9999px;

  --transition-fast: 150ms ease;
  --transition-base: 300ms ease;
  --transition-slow: 500ms ease;

  --z-dropdown: 1000;
  --z-sticky: 1020;
  --z-fixed: 1030;
  --z-modal-backdrop: 1040;
  --z-modal: 1050;
  --z-popover: 1060;
  --z-tooltip: 1070;

  /* Representative finder / disclosure tints (single source for former inline hex) */
  --finder-disclosure-gradient: linear-gradient(135deg, #e8f4ff 0%, #d4edff 100%);
  --finder-disclosure-heading: #1e40af;
  --finder-disclosure-strong: #1e3a8a;
  --finder-info-surface: #eff6ff;
  --finder-info-gradient: linear-gradient(135deg, #f0f9ff 0%, #e0f2fe 100%);
  --finder-info-border: #bae6fd;
  --finder-info-text: #0c4a6e;
  --finder-info-text-mid: #0369a1;
  --finder-info-button-bg: #dbeafe;
  --finder-error-surface: #fef2f2;
  --finder-error-text: #991b1b;
  --finder-success: #10b981;
  --finder-success-bg: #d1fae5;
  --finder-warning: #f59e0b;
  --finder-warning-bg: #fef3c7;
  --finder-violet: #8b5cf6;
  --finder-violet-border: #c4b5fd;
  --finder-violet-bg: #ede9fe;
  --text-primary: var(--text-dark);
  --text-placeholder: var(--neutral-400);
}

/* Dark theme: toggled via `dark-mode` on <html> (see js/modules/dark-mode.mjs). */
html.dark-mode {
  --primary-dark: #0f172a;
  --primary: #1e293b;
  --primary-light: #334155;

  --bg-light: #0f172a;
  --bg-white: #1e293b;
  --text-dark: #e9ecef;
  --text-muted: #94a3b8;
  --border-color: #334155;

  --neutral-50: #0f172a;
  --neutral-100: #1e293b;
  --neutral-200: #334155;
  --neutral-300: #475569;
  --neutral-400: #64748b;
  --neutral-500: #94a3b8;
  --neutral-600: #cbd5e1;
  --neutral-700: #e2e8f0;
  --neutral-800: #f1f5f9;
  --neutral-900: #f8fafc;

  --background: #0f172a;
  --card-bg: #1e293b;
  --text: #e9ecef;
  --text-secondary: #cbd5e1;
  --text-light: #94a3b8;
  /* Light text on brand / header surfaces (tabs, primary buttons) */
  --text-inverse: #f8fafc;
  --surface: #1e293b;
  --surface-alt: #162032;
  --background-alt: #162032;
  --bg-lightest: #0f172a;
  --bg-medium: #334155;
  --border-light: #334155;
  --border: #334155;
  --section-hero: linear-gradient(135deg, #0f172a 0%, #1e293b 100%);
  --section-civic: linear-gradient(135deg, #0f172a 0%, #1e293b 100%);
  --section-jobs: linear-gradient(135deg, #162032 0%, #1e293b 100%);
  --section-business: linear-gradient(135deg, #0f172a 0%, #162032 100%);

  --finder-disclosure-gradient: linear-gradient(135deg, #1e3a5f 0%, #172554 100%);
  --finder-disclosure-heading: #93c5fd;
  --finder-disclosure-strong: #bfdbfe;
  --finder-info-surface: #172554;
  --finder-info-gradient: linear-gradient(135deg, #172554 0%, #1e3a5f 100%);
  --finder-info-border: #334155;
  --finder-info-text: #e2e8f0;
  --finder-info-text-mid: #93c5fd;
  --finder-info-button-bg: #1e3a5f;
  --finder-error-surface: #450a0a;
  --finder-error-text: #fecaca;
  --finder-success-bg: #14532d;
  --finder-warning-bg: #713f12;

  --shadow-sm: 0 2px 4px rgba(0, 0, 0, 0.35);
  --shadow-md: 0 4px 12px rgba(0, 0, 0, 0.45);
  --shadow-lg: 0 8px 20px rgba(0, 0, 0, 0.5);
  --shadow-xl: 0 12px 28px rgba(0, 0, 0, 0.55);

  --text-primary: #e9ecef;
  --text-placeholder: #64748b;
}