/**
 * CSS Variables - Design System
 * ResApp - Çıtır Lezzet Restaurant Panel
 * Version: 1.0.0
 */

:root {
    /* ============================================
       BRAND COLORS
    ============================================ */
    --color-primary: #f97316;
    --color-primary-light: #fb923c;
    --color-primary-dark: #ea580c;
    --color-primary-50: #fff7ed;
    --color-primary-100: #ffedd5;
    --color-primary-200: #fed7aa;

    /* Brand Gradients */
    --gradient-primary: linear-gradient(135deg, #f97316 0%, #ea580c 100%);
    --gradient-primary-dark: linear-gradient(135deg, #ea580c 0%, #c2410c 100%);

    /* ============================================
       NEUTRAL COLORS
    ============================================ */
    --color-white: #ffffff;
    --color-black: #1a1a1a;

    --color-gray-50: #f9fafb;
    --color-gray-100: #f3f4f6;
    --color-gray-200: #e5e7eb;
    --color-gray-300: #d1d5db;
    --color-gray-400: #9ca3af;
    --color-gray-500: #6b7280;
    --color-gray-600: #4b5563;
    --color-gray-700: #374151;
    --color-gray-800: #1f2937;
    --color-gray-900: #111827;

    /* Text Colors */
    --color-text-primary: #1f2937;
    --color-text-secondary: #6b7280;
    --color-text-muted: #9ca3af;
    --color-text-light: #d1d5db;

    /* ============================================
       SEMANTIC COLORS
    ============================================ */
    --color-success: #10b981;
    --color-success-light: #d1fae5;
    --color-success-dark: #059669;

    --color-error: #ef4444;
    --color-error-light: #fee2e2;
    --color-error-dark: #dc2626;

    --color-warning: #f59e0b;
    --color-warning-light: #fef3c7;
    --color-warning-dark: #d97706;

    --color-info: #3b82f6;
    --color-info-light: #dbeafe;
    --color-info-dark: #2563eb;

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

    /* Font Weights */
    --font-weight-normal: 400;
    --font-weight-medium: 500;
    --font-weight-semibold: 600;
    --font-weight-bold: 700;

    /* 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 */

    /* Line Heights */
    --line-height-tight: 1.25;
    --line-height-snug: 1.375;
    --line-height-normal: 1.5;
    --line-height-relaxed: 1.625;

    /* ============================================
       SPACING (8px Grid)
    ============================================ */
    --space-0: 0;
    --space-1: 0.25rem;  /* 4px */
    --space-2: 0.5rem;   /* 8px */
    --space-3: 0.75rem;  /* 12px */
    --space-4: 1rem;     /* 16px */
    --space-5: 1.25rem;  /* 20px */
    --space-6: 1.5rem;   /* 24px */
    --space-8: 2rem;     /* 32px */
    --space-10: 2.5rem;  /* 40px */
    --space-12: 3rem;    /* 48px */
    --space-16: 4rem;    /* 64px */
    --space-20: 5rem;    /* 80px */

    /* ============================================
       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: 1.25rem;  /* 20px */
    --radius-full: 9999px;

    /* ============================================
       SHADOWS
    ============================================ */
    --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
    --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04);
    --shadow-input-focus: 0 0 0 3px rgba(249, 115, 22, 0.15);
    --shadow-primary: 0 4px 14px rgba(249, 115, 22, 0.35);

    /* ============================================
       TRANSITIONS
    ============================================ */
    --transition-fast: 150ms ease;
    --transition-base: 200ms ease;
    --transition-slow: 300ms ease;
    --transition-spring: 500ms cubic-bezier(0.175, 0.885, 0.32, 1.275);

    /* ============================================
       Z-INDEX LAYERS
    ============================================ */
    --z-base: 0;
    --z-dropdown: 1000;
    --z-sticky: 1020;
    --z-fixed: 1030;
    --z-modal-backdrop: 1040;
    --z-modal: 1050;
    --z-popover: 1060;
    --z-tooltip: 1070;
    --z-toast: 1080;
}