/* ============================================================
 * MZ Cards Design Tokens
 * Source of truth for all design decisions: color, spacing,
 * typography, radius, shadow, transition, z-index.
 * Phase 1 of UI Modernization.
 * ============================================================ */

:root {
  /* === Semantic Colors (light) === */
  --bg: #f7f8fa;
  --surface: #ffffff;
  --surface-2: #f9fafb;
  --surface-3: #f3f4f6;
  --surface-hover: #f3f4f6;

  --border: #e6e8eb;
  --border-strong: #d1d5db;

  --text: #1f2937;
  --text-muted: #6b7280;
  --text-subtle: #9ca3af;

  --accent: #00b5ef;
  --accent-hover: #009fd4;
  --accent-soft: color-mix(in srgb, var(--accent) 10%, var(--surface));
  --accent-border: color-mix(in srgb, var(--accent) 38%, var(--surface));
  --accent-contrast: #ffffff;

  /* === Status Colors === */
  --success: #059669;
  --success-soft: #d1fae5;
  --success-text: #065f46;

  --warning: #d97706;
  --warning-soft: #fef3c7;
  --warning-text: #92400e;

  --danger: #dc2626;
  --danger-soft: #fee2e2;
  --danger-text: #991b1b;

  --info: #2563eb;
  --info-soft: #dbeafe;
  --info-text: #1e40af;

  --neutral: #6b7280;
  --neutral-soft: #f3f4f6;
  --neutral-text: #4b5563;

  /* === Spacing === */
  --space-0: 0;
  --space-1: 0.25rem;
  --space-2: 0.5rem;
  --space-3: 0.75rem;
  --space-4: 1rem;
  --space-5: 1.5rem;
  --space-6: 2rem;
  --space-8: 3rem;
  --space-10: 4rem;

  /* === Typography === */
  --text-xs: 0.75rem;
  --text-sm: 0.875rem;
  --text-base: 1rem;
  --text-lg: 1.125rem;
  --text-xl: 1.25rem;
  --text-2xl: 1.5rem;
  --text-3xl: 1.875rem;

  --font-sans: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto,
              "Helvetica Neue", Arial, sans-serif;
  --font-mono: "SF Mono", "Fira Code", "Fira Mono", "Roboto Mono", monospace;

  --font-normal: 400;
  --font-medium: 500;
  --font-semibold: 600;
  --font-bold: 700;

  --leading-tight: 1.25;
  --leading-normal: 1.5;
  --leading-relaxed: 1.75;

  /* === Radius === */
  --radius-sm: 4px;
  --radius-md: 6px;
  --radius-lg: 10px;
  --radius-xl: 16px;
  --radius-full: 9999px;

  /* === Shadow === */
  --shadow-sm: 0 1px 2px rgba(15, 23, 42, 0.05);
  --shadow-md: 0 1px 3px rgba(15, 23, 42, 0.07), 0 1px 2px rgba(15, 23, 42, 0.04);
  --shadow-lg: 0 10px 24px rgba(15, 23, 42, 0.10), 0 2px 6px rgba(15, 23, 42, 0.06);

  /* === Transition === */
  --transition-fast: 0.1s ease;
  --transition-base: 0.15s ease;
  --transition-slow: 0.3s ease;

  /* === Z-index === */
  --z-base: 0;
  --z-dropdown: 100;
  --z-sticky: 200;
  --z-overlay: 500;
  --z-modal: 700;
  --z-toast: 900;


  color-scheme: light;
}