/**
 * Norvana Design System - Design Tokens
 * Light Glassmorphism Theme
 * Version: 2.0.0
 * Last Updated: October 2025
 */

:root {
  /* ===== COLOR PALETTE ===== */

  /* Primary - Purple Blue */
  --color-primary-50: #f0f4ff;
  --color-primary-100: #e0e7ff;
  --color-primary-200: #c7d2fe;
  --color-primary-300: #a5b4fc;
  --color-primary-400: #818cf8;
  --color-primary-500: #667eea;
  --color-primary-600: #5a67d8;
  --color-primary-700: #4c51bf;
  --color-primary-800: #434190;
  --color-primary-900: #3c366b;

  /* Secondary - Purple */
  --color-secondary-500: #764ba2;
  --color-secondary-600: #6b4394;
  --color-secondary-700: #5d3a7f;

  /* Semantic Colors */
  --color-success-50: #ecfdf5;
  --color-success-500: #10b981;
  --color-success-600: #059669;
  --color-success-700: #047857;

  --color-warning-50: #fffbeb;
  --color-warning-500: #f59e0b;
  --color-warning-600: #d97706;
  --color-warning-700: #b45309;

  --color-danger-50: #fef2f2;
  --color-danger-500: #ef4444;
  --color-danger-600: #dc2626;
  --color-danger-700: #b91c1c;

  --color-info-50: #eff6ff;
  --color-info-500: #3b82f6;
  --color-info-600: #2563eb;
  --color-info-700: #1d4ed8;

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

  /* Text Colors */
  --color-text-primary: #1a202c;
  --color-text-secondary: #64748b;
  --color-text-tertiary: #94a3b8;
  --color-text-inverse: #ffffff;

  /* Background Colors */
  --color-bg-primary: #ffffff;
  --color-bg-secondary: #f8fafc;
  --color-bg-tertiary: #f1f5f9;
  --color-bg-gradient: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
  --color-bg-gradient-light: linear-gradient(135deg, #f0f4ff 0%, #e0e7ff 100%);

  /* Glassmorphism */
  --glass-bg: rgba(255, 255, 255, 0.95);
  --glass-bg-light: rgba(255, 255, 255, 0.8);
  --glass-bg-heavy: rgba(255, 255, 255, 0.98);
  --glass-border: rgba(255, 255, 255, 0.2);
  --glass-blur: blur(20px);
  --glass-blur-light: blur(10px);
  --glass-blur-heavy: blur(30px);

  /* ===== TYPOGRAPHY ===== */

  /* Font Families */
  --font-family-base: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Roboto', 'Oxygen', 'Ubuntu', 'Cantarell', 'Fira Sans', 'Droid Sans', 'Helvetica Neue', sans-serif;
  --font-family-mono: 'SF Mono', 'Monaco', 'Inconsolata', 'Fira Code', 'Fira Mono', 'Roboto Mono', monospace;

  /* Font Sizes */
  --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-size-4xl: 2.25rem;     /* 36px */
  --font-size-5xl: 3rem;        /* 48px */

  /* Font Weights */
  --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 Heights */
  --line-height-tight: 1.25;
  --line-height-normal: 1.5;
  --line-height-relaxed: 1.75;
  --line-height-loose: 2;

  /* ===== SPACING ===== */

  --spacing-0: 0;
  --spacing-1: 0.25rem;   /* 4px */
  --spacing-2: 0.5rem;    /* 8px */
  --spacing-3: 0.75rem;   /* 12px */
  --spacing-4: 1rem;      /* 16px */
  --spacing-5: 1.25rem;   /* 20px */
  --spacing-6: 1.5rem;    /* 24px */
  --spacing-7: 1.75rem;   /* 28px */
  --spacing-8: 2rem;      /* 32px */
  --spacing-10: 2.5rem;   /* 40px */
  --spacing-12: 3rem;     /* 48px */
  --spacing-16: 4rem;     /* 64px */
  --spacing-20: 5rem;     /* 80px */
  --spacing-24: 6rem;     /* 96px */

  /* ===== BORDER RADIUS ===== */

  --radius-none: 0;
  --radius-sm: 0.375rem;   /* 6px */
  --radius-md: 0.5rem;     /* 8px */
  --radius-lg: 0.75rem;    /* 12px */
  --radius-xl: 1rem;       /* 16px */
  --radius-2xl: 1.5rem;    /* 24px */
  --radius-3xl: 2rem;      /* 32px */
  --radius-full: 9999px;

  /* ===== SHADOWS ===== */

  --shadow-xs: 0 1px 2px rgba(0, 0, 0, 0.05);
  --shadow-sm: 0 2px 4px rgba(0, 0, 0, 0.06);
  --shadow-md: 0 4px 6px rgba(0, 0, 0, 0.07);
  --shadow-lg: 0 8px 15px rgba(0, 0, 0, 0.1);
  --shadow-xl: 0 12px 25px rgba(0, 0, 0, 0.12);
  --shadow-2xl: 0 20px 40px rgba(0, 0, 0, 0.15);
  --shadow-inner: inset 0 2px 4px rgba(0, 0, 0, 0.06);

  /* Glassmorphism Shadows */
  --shadow-glass: 0 8px 32px rgba(0, 0, 0, 0.08);
  --shadow-glass-lg: 0 12px 40px rgba(0, 0, 0, 0.12);

  /* Primary Color Shadow (for buttons) */
  --shadow-primary: 0 4px 12px rgba(102, 126, 234, 0.3);
  --shadow-primary-lg: 0 8px 20px rgba(102, 126, 234, 0.4);

  /* ===== TRANSITIONS ===== */

  --transition-fast: 150ms ease-in-out;
  --transition-base: 250ms ease-in-out;
  --transition-slow: 350ms ease-in-out;
  --transition-slower: 500ms ease-in-out;

  /* ===== Z-INDEX ===== */

  --z-index-dropdown: 1000;
  --z-index-sticky: 1020;
  --z-index-fixed: 1030;
  --z-index-modal-backdrop: 1040;
  --z-index-modal: 1050;
  --z-index-popover: 1060;
  --z-index-tooltip: 1070;
  --z-index-toast: 1080;

  /* ===== BREAKPOINTS (for reference) ===== */

  --breakpoint-sm: 640px;
  --breakpoint-md: 768px;
  --breakpoint-lg: 1024px;
  --breakpoint-xl: 1280px;
  --breakpoint-2xl: 1536px;
}

/* ===== DARK MODE THEME (Optional) ===== */

@media (prefers-color-scheme: dark) {
  :root.dark-mode-enabled {
    /* Dark theme overrides */
    --color-bg-primary: #0f172a;
    --color-bg-secondary: #1e293b;
    --color-bg-tertiary: #334155;

    --color-text-primary: #f8fafc;
    --color-text-secondary: #cbd5e1;
    --color-text-tertiary: #94a3b8;

    --glass-bg: rgba(30, 41, 59, 0.95);
    --glass-bg-light: rgba(30, 41, 59, 0.8);
    --glass-bg-heavy: rgba(30, 41, 59, 0.98);

    --shadow-glass: 0 8px 32px rgba(0, 0, 0, 0.3);
  }
}

/* ===== UTILITY CLASSES ===== */

/* Apply to body for smooth transitions */
.design-system-v2 {
  font-family: var(--font-family-base);
  font-size: var(--font-size-base);
  line-height: var(--line-height-normal);
  color: var(--color-text-primary);
  background: var(--color-bg-secondary);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

/* Glassmorphism Effect */
.glass {
  background: var(--glass-bg);
  backdrop-filter: var(--glass-blur);
  -webkit-backdrop-filter: var(--glass-blur);
  border: 1px solid var(--glass-border);
}

.glass-light {
  background: var(--glass-bg-light);
  backdrop-filter: var(--glass-blur-light);
  -webkit-backdrop-filter: var(--glass-blur-light);
}

.glass-heavy {
  background: var(--glass-bg-heavy);
  backdrop-filter: var(--glass-blur-heavy);
  -webkit-backdrop-filter: var(--glass-blur-heavy);
}

/* Gradient Backgrounds */
.bg-gradient {
  background: var(--color-bg-gradient);
}

.bg-gradient-light {
  background: var(--color-bg-gradient-light);
}