/**
 * Design Tokens
 * Core design system variables for the Mosaic Pattern Editor
 */

:root {
  /* ========== Primary Colors ========== */
  --color-primary: rebeccapurple;
  --color-primary-hover: #552288;
  --color-primary-active: #442277;
  --color-primary-light: #9966cc;
  --color-primary-lighter: #d4c4e0;
  --color-primary-dark: #4d2673;

  /* ========== Accent Colors ========== */
  --color-accent: #06B6D4;
  --color-accent-hover: #0891B2;
  --color-accent-light: #67E8F9;

  /* ========== Neutrals ========== */
  --color-bg-canvas: #F9FAFB;
  --color-bg-panel: #FFFFFF;
  --color-bg-sidebar: #F3F4F6;
  --color-bg-hover: #F3F4F6;
  --color-bg-active: #E5E7EB;
  --color-bg-overlay: rgba(0, 0, 0, 0.5);

  --color-border: #E5E7EB;
  --color-border-strong: #D1D5DB;
  --color-border-light: #F3F4F6;
  --color-border-focus: #7C3AED;

  /* ========== Text Colors ========== */
  --color-text-primary: #111827;
  --color-text-secondary: #6B7280;
  --color-text-tertiary: #9CA3AF;
  --color-text-inverse: #FFFFFF;
  --color-text-disabled: #D1D5DB;

  /* ========== Semantic Colors ========== */
  --color-success: #10B981;
  --color-success-light: #D1FAE5;
  --color-error: #EF4444;
  --color-error-light: #FEE2E2;
  --color-warning: #F59E0B;
  --color-warning-light: #FEF3C7;
  --color-info: #3B82F6;
  --color-info-light: #DBEAFE;

  /* ========== Shadows ========== */
  --shadow-xs: 0 1px 2px 0 rgb(0 0 0 / 0.05);
  --shadow-sm: 0 1px 3px 0 rgb(0 0 0 / 0.1), 0 1px 2px -1px rgb(0 0 0 / 0.1);
  --shadow-md: 0 4px 6px -1px rgb(0 0 0 / 0.1), 0 2px 4px -2px rgb(0 0 0 / 0.1);
  --shadow-lg: 0 10px 15px -3px rgb(0 0 0 / 0.1), 0 4px 6px -4px rgb(0 0 0 / 0.1);
  --shadow-xl: 0 20px 25px -5px rgb(0 0 0 / 0.1), 0 8px 10px -6px rgb(0 0 0 / 0.1);
  --shadow-2xl: 0 25px 50px -12px rgb(0 0 0 / 0.25);
  --shadow-focus: 0 0 0 3px rgba(124, 58, 237, 0.2);

  /* ========== Spacing Scale ========== */
  --space-xs: 4px;
  --space-sm: 8px;
  --space-md: 16px;
  --space-lg: 24px;
  --space-xl: 32px;
  --space-2xl: 48px;
  --space-3xl: 64px;

  /* ========== Typography ========== */
  --font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Inter', 'Roboto', 'Helvetica Neue', sans-serif;
  --font-family-mono: 'SF Mono', Monaco, 'Cascadia Code', 'Consolas', monospace;

  --font-size-xs: 0.75rem;    /* 12px */
  --font-size-sm: 0.875rem;   /* 14px */
  --font-size-base: 1rem;     /* 16px */
  --font-size-lg: 1.125rem;   /* 18px */
  --font-size-xl: 1.25rem;    /* 20px */
  --font-size-2xl: 1.5rem;    /* 24px */
  --font-size-3xl: 1.875rem;  /* 30px */

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

  --line-height-tight: 1.25;
  --line-height-normal: 1.5;
  --line-height-relaxed: 1.75;

  /* ========== Border Radius ========== */
  --radius-sm: 4px;
  --radius-md: 6px;
  --radius-lg: 8px;
  --radius-xl: 12px;
  --radius-2xl: 16px;
  --radius-full: 9999px;

  /* ========== Transitions ========== */
  --transition-fast: 100ms ease;
  --transition-base: 150ms ease;
  --transition-slow: 200ms ease;
  --transition-slower: 300ms ease;

  /* ========== Layout Dimensions ========== */
  --header-height: 60px;
  --left-toolbar-width: 72px;
  --right-panel-width: 280px;
  --top-toolbar-height: 56px;
  --status-bar-height: 40px;

  /* ========== Z-Index Scale ========== */
  --z-base: 1;
  --z-dropdown: 100;
  --z-sticky: 200;
  --z-overlay: 300;
  --z-modal: 400;
  --z-popover: 500;
  --z-tooltip: 600;

  /* ========== Premium Badge ========== */
  --color-premium: #F59E0B;
  --color-premium-bg: #FEF3C7;
}

/* Dark mode support (future enhancement) */
@media (prefers-color-scheme: dark) {
  :root {
    /* Dark mode tokens will go here in future */
  }
}

/* ========== Dark Theme ========== */
:root[data-theme="dark"] {
  --color-primary-lighter: #3a2a55;
  --color-primary-light: #7a55a8;

  --color-bg-canvas: #1b1b1f;
  --color-bg-panel: #232327;
  --color-bg-sidebar: #1e1e22;
  --color-bg-hover: #2e2e33;
  --color-bg-active: #3a3a40;
  --color-bg-overlay: rgba(0, 0, 0, 0.65);

  --color-border: #3a3a40;
  --color-border-strong: #4a4a52;
  --color-border-light: #2e2e33;

  --color-text-primary: #f3f4f6;
  --color-text-secondary: #a3a8b3;
  --color-text-tertiary: #7c8290;
  --color-text-disabled: #4b5563;

  --color-success-light: #123f30;
  --color-error-light: #47201f;
  --color-warning-light: #453413;
  --color-info-light: #1c3050;
}