/* =====================================================================
   UniMate Design System — Design Tokens v1.0
   Single source of truth for colors, typography, spacing, radii,
   shadows, transitions, gradients, and animation easings.
   ===================================================================== */

@import url('https://fonts.googleapis.com/css2?family=Plus+Jakarta+Sans:ital,wght@0,200..800;1,200..800&family=DM+Sans:ital,opsz,wght@0,9..40,100..1000;1,9..40,100..1000&display=swap');

:root {
  /* ─── Brand Colors — Pure Monochrome (zinc base, blue accent) ──────── */
  --um-brand-50:  #fafafa;
  --um-brand-100: #f4f4f5;
  --um-brand-200: #e4e4e7;
  --um-brand-300: #93c5fd;
  --um-brand-400: #60a5fa;
  --um-brand-500: #2563eb;
  --um-brand-600: #1e40af;
  --um-brand-700: #1e3a8a;
  --um-brand-800: #172554;
  --um-brand-900: #0c1a4a;

  /* ─── Primary (maps to brand) ─────────────────────────────────────── */
  --um-primary:          var(--um-brand-500);
  --um-primary-hover:    var(--um-brand-600);
  --um-primary-active:   var(--um-brand-700);
  --um-primary-subtle:   var(--um-brand-50);
  --um-primary-contrast: #ffffff;

  /* ─── Accent (CTA / action-oriented) ──────────────────────────────── */
  --um-accent-50:  #fff1f0;
  --um-accent-100: #ffe4e2;
  --um-accent-200: #ffcdc9;
  --um-accent-300: #ffa8a1;
  --um-accent-400: #ff7b72;
  --um-accent-500: #F97066;
  --um-accent-600: #e6554b;
  --um-accent-700: #c23d34;
  --um-accent-800: #9f332c;
  --um-accent-900: #832d28;

  /* ─── Secondary (violet) ──────────────────────────────────────────── */
  --um-secondary-50:  #f5f3ff;
  --um-secondary-100: #ede9fe;
  --um-secondary-200: #ddd6fe;
  --um-secondary-300: #93c5fd;
  --um-secondary-400: #93c5fd;
  --um-secondary-500: #3b82f6;
  --um-secondary-600: #7c3aed;
  --um-secondary-700: #6d28d9;
  --um-secondary-800: #5b21b6;
  --um-secondary-900: #4c1d95;

  /* ─── Semantic Colors ─────────────────────────────────────────────── */
  --um-success:       #2563eb;
  --um-success-light: #e4e4e7;
  --um-success-dark:  #1e40af;

  --um-warning:       #F59E0B;
  --um-warning-light: #fef3c7;
  --um-warning-dark:  #d97706;

  --um-danger:        #EF4444;
  --um-danger-light:  #fee2e2;
  --um-danger-dark:   #dc2626;

  --um-info:          #06B6D4;
  --um-info-light:    #cffafe;
  --um-info-dark:     #0891b2;

  /* ─── Neutral Palette ─────────────────────────────────────────────── */
  --um-neutral-0:   #ffffff;
  --um-neutral-25:  #fcfcfd;
  --um-neutral-50:  #f8fafc;
  --um-neutral-100: #f1f5f9;
  --um-neutral-200: #e2e8f0;
  --um-neutral-300: #cbd5e1;
  --um-neutral-400: #94a3b8;
  --um-neutral-500: #64748b;
  --um-neutral-600: #475569;
  --um-neutral-700: #334155;
  --um-neutral-800: #1e293b;
  --um-neutral-900: #0f172a;
  --um-neutral-950: #020617;

  /* ─── Surface Colors (Light) ──────────────────────────────────────── */
  --um-bg:               var(--um-neutral-50);
  --um-surface:          var(--um-neutral-0);
  --um-surface-elevated: var(--um-neutral-0);
  --um-surface-sunken:   var(--um-neutral-100);
  --um-text:             var(--um-neutral-900);
  --um-text-secondary:   var(--um-neutral-500);
  --um-text-muted:       var(--um-neutral-400);
  --um-border:           var(--um-neutral-200);
  --um-border-strong:    var(--um-neutral-300);
  --um-divider:          var(--um-neutral-100);

  /* ─── Typography ──────────────────────────────────────────────────── */
  --um-font-display: 'Plus Jakarta Sans', -apple-system, BlinkMacSystemFont, 'Segoe UI', system-ui, sans-serif;
  --um-font-body:    'DM Sans', -apple-system, BlinkMacSystemFont, 'Segoe UI', system-ui, sans-serif;
  --um-font-mono:    'JetBrains Mono', 'SF Mono', 'Fira Code', 'Cascadia Code', monospace;

  /* Font Sizes — modular scale (1.2 ratio) */
  --um-text-2xs: 0.625rem;   /* 10px */
  --um-text-xs:  0.75rem;    /* 12px */
  --um-text-sm:  0.8125rem;  /* 13px */
  --um-text-base: 0.875rem;  /* 14px */
  --um-text-md:  1rem;       /* 16px */
  --um-text-lg:  1.125rem;   /* 18px */
  --um-text-xl:  1.25rem;    /* 20px */
  --um-text-2xl: 1.5rem;     /* 24px */
  --um-text-3xl: 1.875rem;   /* 30px */
  --um-text-4xl: 2.25rem;    /* 36px */
  --um-text-5xl: 3rem;       /* 48px */

  /* Font Weights */
  --um-weight-regular:  400;
  --um-weight-medium:   500;
  --um-weight-semibold: 600;
  --um-weight-bold:     700;
  --um-weight-extrabold: 800;

  /* Line Heights */
  --um-leading-none:    1;
  --um-leading-tight:   1.25;
  --um-leading-snug:    1.35;
  --um-leading-normal:  1.5;
  --um-leading-relaxed: 1.625;
  --um-leading-loose:   1.75;

  /* Letter Spacing */
  --um-tracking-tighter: -0.03em;
  --um-tracking-tight:   -0.015em;
  --um-tracking-normal:  0;
  --um-tracking-wide:    0.025em;
  --um-tracking-wider:   0.05em;
  --um-tracking-caps:    0.08em;

  /* ─── Spacing (4px grid) ──────────────────────────────────────────── */
  --um-space-0:  0;
  --um-space-px: 1px;
  --um-space-0-5: 0.125rem;  /* 2px */
  --um-space-1:  0.25rem;    /* 4px */
  --um-space-1-5: 0.375rem;  /* 6px */
  --um-space-2:  0.5rem;     /* 8px */
  --um-space-2-5: 0.625rem;  /* 10px */
  --um-space-3:  0.75rem;    /* 12px */
  --um-space-3-5: 0.875rem;  /* 14px */
  --um-space-4:  1rem;       /* 16px */
  --um-space-5:  1.25rem;    /* 20px */
  --um-space-6:  1.5rem;     /* 24px */
  --um-space-7:  1.75rem;    /* 28px */
  --um-space-8:  2rem;       /* 32px */
  --um-space-10: 2.5rem;     /* 40px */
  --um-space-12: 3rem;       /* 48px */
  --um-space-16: 4rem;       /* 64px */
  --um-space-20: 5rem;       /* 80px */
  --um-space-24: 6rem;       /* 96px */

  /* ─── Border Radius ───────────────────────────────────────────────── */
  --um-radius-none: 0;
  --um-radius-xs:   4px;
  --um-radius-sm:   6px;
  --um-radius-md:   8px;
  --um-radius-lg:   12px;
  --um-radius-xl:   16px;
  --um-radius-2xl:  20px;
  --um-radius-3xl:  24px;
  --um-radius-full: 9999px;

  /* ─── Shadows (3 levels: sm, md, lg) + extras ─────────────────────── */
  --um-shadow-xs:  0 1px 2px rgba(2, 6, 23, 0.03);
  --um-shadow-sm:  0 1px 3px rgba(2, 6, 23, 0.04), 0 2px 8px rgba(2, 6, 23, 0.02);
  --um-shadow-md:  0 4px 16px rgba(2, 6, 23, 0.06), 0 1px 3px rgba(2, 6, 23, 0.03);
  --um-shadow-lg:  0 8px 32px rgba(2, 6, 23, 0.08), 0 2px 8px rgba(2, 6, 23, 0.03);
  --um-shadow-xl:  0 20px 48px rgba(2, 6, 23, 0.12), 0 4px 12px rgba(2, 6, 23, 0.04);
  --um-shadow-2xl: 0 32px 64px rgba(2, 6, 23, 0.16), 0 8px 20px rgba(2, 6, 23, 0.06);

  --um-shadow-glow:    0 0 24px rgba(37, 99, 235, 0.15);
  --um-shadow-primary: 0 4px 14px rgba(37, 99, 235, 0.25);
  --um-shadow-accent:  0 4px 14px rgba(249, 112, 102, 0.25);

  /* ─── Transitions & Easings ───────────────────────────────────────── */
  --um-ease-default:  cubic-bezier(0.4, 0, 0.2, 1);
  --um-ease-in:       cubic-bezier(0.4, 0, 1, 1);
  --um-ease-out:      cubic-bezier(0, 0, 0.2, 1);
  --um-ease-in-out:   cubic-bezier(0.4, 0, 0.2, 1);
  --um-ease-spring:   cubic-bezier(0.34, 1.56, 0.64, 1);
  --um-ease-bounce:   cubic-bezier(0.175, 0.885, 0.32, 1.275);
  --um-ease-smooth:   cubic-bezier(0.22, 1, 0.36, 1);
  --um-ease-snappy:   cubic-bezier(0.16, 1, 0.3, 1);

  --um-duration-fast:    100ms;
  --um-duration-normal:  200ms;
  --um-duration-slow:    300ms;
  --um-duration-slower:  400ms;
  --um-duration-slowest: 500ms;

  /* ─── Gradients ───────────────────────────────────────────────────── */
  --um-gradient-brand:   linear-gradient(135deg, #2563eb 0%, #60a5fa 50%, #86efac 100%);
  --um-gradient-premium: linear-gradient(135deg, #3b82f6 0%, #93c5fd 50%, #6366f1 100%);
  --um-gradient-accent:  linear-gradient(135deg, #F97066 0%, #ff7b72 50%, #ffa8a1 100%);
  --um-gradient-success: linear-gradient(135deg, #2563eb 0%, #3b82f6 100%);
  --um-gradient-warning: linear-gradient(135deg, #F59E0B 0%, #fbbf24 100%);
  --um-gradient-danger:  linear-gradient(135deg, #EF4444 0%, #f87171 100%);
  --um-gradient-glass:   linear-gradient(135deg, rgba(255,255,255,0.9), rgba(255,255,255,0.7));
  --um-gradient-surface: linear-gradient(180deg, var(--um-neutral-0) 0%, var(--um-neutral-50) 100%);
  --um-gradient-hero:    linear-gradient(135deg, #2563eb 0%, #3b82f6 50%, #c084fc 100%);

  /* ─── Z-Index Scale ───────────────────────────────────────────────── */
  --um-z-base:       1;
  --um-z-dropdown:   100;
  --um-z-sticky:     200;
  --um-z-fixed:      300;
  --um-z-overlay:    400;
  --um-z-modal:      500;
  --um-z-popover:    600;
  --um-z-tooltip:    700;
  --um-z-toast:      800;
  --um-z-spotlight:  900;

  /* ─── Layout ──────────────────────────────────────────────────────── */
  --um-content-max:  1200px;
  --um-sidebar-w:    220px;
  --um-sidebar-collapsed: 56px;
  --um-header-h:     56px;
  --um-mobile-nav-h: 62px;

  /* ─── Glass / Backdrop ────────────────────────────────────────────── */
  --um-glass-bg:     rgba(255, 255, 255, 0.82);
  --um-glass-heavy:  rgba(255, 255, 255, 0.94);
  --um-glass-border: rgba(255, 255, 255, 0.6);
  --um-glass-blur:   blur(28px) saturate(200%);
}

/* ─── Dark Theme Token Overrides ────────────────────────────────────── */
.theme-dark {
  --um-primary:          #60a5fa;
  --um-primary-hover:    #86efac;
  --um-primary-active:   #2563eb;
  --um-primary-subtle:   rgba(37, 99, 235, 0.12);
  --um-primary-contrast: #ffffff;

  --um-accent-500:   #ff7b72;
  --um-accent-600:   #F97066;

  --um-secondary-500: #93c5fd;
  --um-secondary-600: #3b82f6;

  --um-success:       #3b82f6;
  --um-success-light: rgba(37, 99, 235, 0.15);
  --um-success-dark:  #2563eb;

  --um-warning:       #fbbf24;
  --um-warning-light: rgba(245, 158, 11, 0.15);
  --um-warning-dark:  #F59E0B;

  --um-danger:        #f87171;
  --um-danger-light:  rgba(239, 68, 68, 0.15);
  --um-danger-dark:   #EF4444;

  --um-info:          #22d3ee;
  --um-info-light:    rgba(6, 182, 212, 0.15);
  --um-info-dark:     #06B6D4;

  --um-bg:               #0a0e1a;
  --um-surface:          #111827;
  --um-surface-elevated: #1a2332;
  --um-surface-sunken:   #070b14;
  --um-text:             #f1f5f9;
  --um-text-secondary:   #94a3b8;
  --um-text-muted:       #64748b;
  --um-border:           rgba(148, 163, 184, 0.12);
  --um-border-strong:    rgba(148, 163, 184, 0.22);
  --um-divider:          rgba(148, 163, 184, 0.08);

  --um-shadow-xs:  0 1px 2px rgba(0, 0, 0, 0.15);
  --um-shadow-sm:  0 1px 3px rgba(0, 0, 0, 0.2), 0 2px 8px rgba(0, 0, 0, 0.1);
  --um-shadow-md:  0 4px 16px rgba(0, 0, 0, 0.25), 0 1px 3px rgba(0, 0, 0, 0.15);
  --um-shadow-lg:  0 8px 32px rgba(0, 0, 0, 0.35), 0 2px 8px rgba(0, 0, 0, 0.2);
  --um-shadow-xl:  0 20px 48px rgba(0, 0, 0, 0.4), 0 4px 12px rgba(0, 0, 0, 0.2);
  --um-shadow-2xl: 0 32px 64px rgba(0, 0, 0, 0.5), 0 8px 20px rgba(0, 0, 0, 0.3);

  --um-shadow-glow:    0 0 24px rgba(116, 143, 252, 0.2);
  --um-shadow-primary: 0 4px 14px rgba(116, 143, 252, 0.3);
  --um-shadow-accent:  0 4px 14px rgba(255, 123, 114, 0.3);

  --um-gradient-brand:   linear-gradient(135deg, #2563eb 0%, #60a5fa 50%, #3b5bdb 100%);
  --um-gradient-premium: linear-gradient(135deg, #3b82f6 0%, #93c5fd 50%, #7c3aed 100%);
  --um-gradient-glass:   linear-gradient(135deg, rgba(17,24,39,0.9), rgba(17,24,39,0.7));
  --um-gradient-surface: linear-gradient(180deg, #111827 0%, #0a0e1a 100%);

  --um-glass-bg:     rgba(17, 24, 39, 0.82);
  --um-glass-heavy:  rgba(17, 24, 39, 0.94);
  --um-glass-border: rgba(148, 163, 184, 0.12);
}