/**
 * VARIABLES.CSS - Enhanced CSS Custom Properties
 * Design tokens and theme variables for the modular system
 * 
 * @package StileSalentino
 * @version 2.1.0
 */

:root {
    /* =============================================================
       ENHANCED COLOR SYSTEM
       ============================================================= */
    
    /* Primary Brand Colors */
    --color-primary: #2563eb;
    --color-primary-light: #3b82f6;
    --color-primary-dark: #1d4ed8;
    --color-primary-50: #eff6ff;
    --color-primary-100: #dbeafe;
    --color-primary-900: #1e3a8a;
    
    /* Secondary Colors */
    --color-secondary: #64748b;
    --color-secondary-light: #94a3b8;
    --color-secondary-dark: #475569;
    
    /* Semantic Colors */
    --color-success: #16a34a;
    --color-success-light: #22c55e;
    --color-success-dark: #15803d;
    
    --color-warning: #f59e0b;
    --color-warning-light: #fbbf24;
    --color-warning-dark: #d97706;
    
    --color-danger: #dc2626;
    --color-danger-light: #ef4444;
    --color-danger-dark: #b91c1c;
    
    --color-info: #0ea5e9;
    --color-info-light: #38bdf8;
    --color-info-dark: #0284c7;
    
    /* Neutral Colors */
    --color-white: #ffffff;
    --color-black: #000000;
    --color-transparent: transparent;
    
    --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;
    
    /* Background Colors */
    --color-background: #ffffff;
    --color-background-light: #f9fafb;
    --color-background-dark: #f3f4f6;
    
    /* Border Colors */
    --color-border: #e5e7eb;
    --color-border-light: #f3f4f6;
    --color-border-dark: #d1d5db;
    
    /* Text Colors */
    --text-primary: #111827;
    --text-secondary: #6b7280;
    --text-muted: #9ca3af;
    --text-inverse: #ffffff;
    
    /* Text on Colored Backgrounds */
    --text-on-primary: #ffffff;
    --text-on-secondary: #ffffff;
    --text-on-success: #ffffff;
    --text-on-warning: #ffffff;
    --text-on-danger: #ffffff;
    --text-on-info: #ffffff;
    --text-on-dark: #ffffff;
    
    /* Link Colors */
    --link-color: var(--color-primary);
    --link-hover: var(--color-primary-dark);
    --link-visited: #7c3aed;
    
    /* Focus Colors */
    --focus-color: var(--color-primary);
    --focus-ring: 0 0 0 3px rgba(37, 99, 235, 0.1);
    
    /* =============================================================
       ENHANCED TYPOGRAPHY SYSTEM
       ============================================================= */
    
    /* Font Families */
    --font-primary: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Roboto', 'Oxygen', 'Ubuntu', 'Cantarell', 'Fira Sans', 'Droid Sans', 'Helvetica Neue', sans-serif;
    --font-secondary: 'Inter', system-ui, -apple-system, sans-serif;
    --font-display: 'Inter', system-ui, -apple-system, sans-serif;
    --font-body: 'Inter', system-ui, -apple-system, sans-serif;
    --font-mono: 'Fira Code', 'Monaco', 'Cascadia Code', 'Segoe UI Mono', 'Roboto Mono', 'Oxygen Mono', 'Ubuntu Monospace', 'Source Code Pro', 'Fira Mono', 'Droid Sans Mono', 'Courier New', monospace;
    
    /* Font Sizes (Type Scale) */
    --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-size-6xl: 3.75rem;     /* 60px */
    --font-size-7xl: 4.5rem;      /* 72px */
    
    /* Line Heights */
    --line-height-tight: 1.25;
    --line-height-snug: 1.375;
    --line-height-normal: 1.5;
    --line-height-relaxed: 1.625;
    --line-height-loose: 2;
    
    /* Font Weights */
    --font-weight-thin: 100;
    --font-weight-light: 300;
    --font-weight-normal: 400;
    --font-weight-medium: 500;
    --font-weight-semibold: 600;
    --font-weight-bold: 700;
    --font-weight-extrabold: 800;
    --font-weight-black: 900;
    
    /* =============================================================
       ENHANCED SPACING SYSTEM
       ============================================================= */
    
    --space-px: 1px;
    --space-0: 0;
    --space-0-5: 0.125rem;  /* 2px */
    --space-1: 0.25rem;     /* 4px */
    --space-1-5: 0.375rem;  /* 6px */
    --space-2: 0.5rem;      /* 8px */
    --space-2-5: 0.625rem;  /* 10px */
    --space-3: 0.75rem;     /* 12px */
    --space-3-5: 0.875rem;  /* 14px */
    --space-4: 1rem;        /* 16px */
    --space-5: 1.25rem;     /* 20px */
    --space-6: 1.5rem;      /* 24px */
    --space-7: 1.75rem;     /* 28px */
    --space-8: 2rem;        /* 32px */
    --space-9: 2.25rem;     /* 36px */
    --space-10: 2.5rem;     /* 40px */
    --space-11: 2.75rem;    /* 44px */
    --space-12: 3rem;       /* 48px */
    --space-14: 3.5rem;     /* 56px */
    --space-16: 4rem;       /* 64px */
    --space-18: 4.5rem;     /* 72px */
    --space-20: 5rem;       /* 80px */
    --space-24: 6rem;       /* 96px */
    --space-28: 7rem;       /* 112px */
    --space-32: 8rem;       /* 128px */
    --space-36: 9rem;       /* 144px */
    --space-40: 10rem;      /* 160px */
    --space-44: 11rem;      /* 176px */
    --space-48: 12rem;      /* 192px */
    --space-52: 13rem;      /* 208px */
    --space-56: 14rem;      /* 224px */
    --space-60: 15rem;      /* 240px */
    --space-64: 16rem;      /* 256px */
    --space-72: 18rem;      /* 288px */
    --space-80: 20rem;      /* 320px */
    --space-96: 24rem;      /* 384px */
    
    /* Semantic Spacing (Design Token Names) */
    --space-xs: var(--space-2);   /* 8px */
    --space-sm: var(--space-3);   /* 12px */
    --space-md: var(--space-4);   /* 16px */
    --space-lg: var(--space-6);   /* 24px */
    --space-xl: var(--space-8);   /* 32px */
    --space-2xl: var(--space-12); /* 48px */
    --space-3xl: var(--space-16); /* 64px */
    --space-4xl: var(--space-20); /* 80px */
    --space-5xl: var(--space-24); /* 96px */
    
    /* =============================================================
       BORDER RADIUS SYSTEM
       ============================================================= */
    
    --radius-none: 0;
    --radius-xs: 0.125rem;   /* 2px */
    --radius-sm: 0.25rem;    /* 4px */
    --radius-md: 0.375rem;   /* 6px */
    --radius-lg: 0.5rem;     /* 8px */
    --radius-xl: 0.75rem;    /* 12px */
    --radius-2xl: 1rem;      /* 16px */
    --radius-3xl: 1.5rem;    /* 24px */
    --radius-full: 9999px;
    --radius-pill: 9999px;
    
    /* =============================================================
       SHADOW SYSTEM
       ============================================================= */
    
    --shadow-xs: 0 1px 2px rgba(0, 0, 0, 0.05);
    --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.1), 0 1px 2px rgba(0, 0, 0, 0.06);
    --shadow-md: 0 4px 6px rgba(0, 0, 0, 0.1), 0 2px 4px rgba(0, 0, 0, 0.06);
    --shadow-lg: 0 10px 15px rgba(0, 0, 0, 0.1), 0 4px 6px rgba(0, 0, 0, 0.05);
    --shadow-xl: 0 20px 25px rgba(0, 0, 0, 0.1), 0 8px 10px rgba(0, 0, 0, 0.04);
    --shadow-2xl: 0 25px 50px rgba(0, 0, 0, 0.15);
    --shadow-inner: inset 0 2px 4px rgba(0, 0, 0, 0.06);
    --shadow-none: none;
    
    /* =============================================================
       LAYOUT & COMPONENT VARIABLES
       ============================================================= */
    
    /* Container Sizes */
    --container-max-width: 1200px;
    --container-narrow: 800px;
    --container-wide: 1400px;
    --container-padding: 20px;
    --container-padding-mobile: 16px;
    
    /* Grid System */
    --grid-gap: 20px;
    --grid-gap-sm: 12px;
    --grid-gap-lg: 32px;
    --grid-min-width: 300px;
    
    /* Section Spacing */
    --section-padding-y: 40px;
    --section-padding-small: 20px;
    --section-padding-large: 80px;
    --section-padding-mobile: 30px;
    --section-padding-large-mobile: 50px;
    
    /* =============================================================
       COMPONENT-SPECIFIC VARIABLES
       ============================================================= */
    
    /* Button Variables */
    --btn-padding-y: 12px;
    --btn-padding-x: 20px;
    --btn-font-size: 0.875rem;
    --btn-font-weight: 500;
    --btn-border-radius: 6px;
    --btn-border-width: 1px;
    --btn-gap: 8px;
    --btn-transition: all 0.15s ease-in-out;
    
    /* Card Variables */
    --card-bg: var(--color-white);
    --card-border-color: var(--color-border);
    --card-border-width: 1px;
    --card-border-radius: 12px;
    --card-shadow: var(--shadow-sm);
    --card-padding: 20px;
    --card-hover-shadow: var(--shadow-lg);
    
    /* Badge Variables */
    --badge-padding-y: 4px;
    --badge-padding-x: 8px;
    --badge-font-size: 0.75rem;
    --badge-font-weight: 500;
    --badge-border-radius: 4px;
    --badge-gap: 4px;
    
    /* Form Variables */
    --form-input-padding-y: 10px;
    --form-input-padding-x: 12px;
    --form-input-font-size: 0.875rem;
    --form-input-border-radius: 6px;
    --form-input-border-width: 1px;
    --form-input-border-color: var(--color-gray-300);
    --form-input-bg: var(--color-white);
    --form-input-color: var(--text-primary);
    --form-label-margin: 6px;
    --form-label-size: 0.875rem;
    --form-group-margin: 20px;
    --form-help-margin: 4px;
    --form-help-size: 0.75rem;
    --form-error-margin: 4px;
    --form-error-size: 0.75rem;
    --form-disabled-bg: var(--color-gray-50);
    
    /* =============================================================
       STORE-SPECIFIC VARIABLES
       ============================================================= */
    
    /* Store Card Variables */
    --store-card-bg: var(--color-white);
    --store-card-border-color: var(--color-border);
    --store-card-border-width: 1px;
    --store-card-border-radius: 12px;
    --store-card-shadow: var(--shadow-sm);
    --store-card-hover-shadow: var(--shadow-lg);
    --store-card-padding: 20px;
    --store-card-title-size: 1.125rem;
    --store-card-title-color: var(--text-primary);
    --store-card-meta-color: var(--text-secondary);
    
    /* Store Image Variables */
    --store-image-object-fit: cover;
    --store-image-border-radius: var(--radius-lg);
    --store-image-aspect-ratio: 16/9;
    
    /* Store Rating Variables */
    --store-rating-star-color: var(--color-warning);
    --store-rating-star-empty: var(--color-gray-300);
    --store-rating-value-color: var(--text-secondary);
    
    /* =============================================================
       FILTER & SEARCH VARIABLES
       ============================================================= */
    
    /* Store Filters */
    --store-filters-bg: var(--color-gray-50);
    --store-filters-border-color: var(--color-border);
    --store-filters-border-width: 1px;
    --store-filters-border-radius: 12px;
    --store-filters-padding: 24px;
    --store-filters-shadow: var(--shadow-sm);
    
    /* Filter Inputs */
    --filter-input-padding-y: 10px;
    --filter-input-padding-x: 12px;
    --filter-input-font-size: 0.875rem;
    --filter-input-border-radius: 6px;
    --filter-input-border-width: 1px;
    --filter-input-border-color: var(--color-gray-300);
    --filter-input-bg: var(--color-white);
    --filter-input-color: var(--text-primary);
    --filter-label-color: var(--text-primary);
    --filter-label-size: 0.875rem;
    --filter-placeholder-color: var(--text-muted);
    
    /* Quick Filter Variables */
    --quick-filter-bg: var(--color-white);
    --quick-filter-color: var(--text-secondary);
    --quick-filter-border-color: var(--color-gray-300);
    --quick-filter-border-radius: 6px;
    --quick-filter-hover-bg: var(--color-primary);
    --quick-filter-hover-color: var(--color-white);
    
    /* Filter Chip Variables */
    --filter-chip-bg: var(--color-white);
    --filter-chip-color: var(--text-secondary);
    --filter-chip-border-color: var(--color-gray-300);
    
    /* =============================================================
       MAP VARIABLES
       ============================================================= */
    
    --map-bg: var(--color-gray-100);
    --map-border-radius: 12px;
    --map-border-width: 1px;
    --map-border-color: var(--color-border);
    --map-shadow: var(--shadow-md);
    --map-container-bg: var(--color-gray-50);
    --map-info-bg: var(--color-white);
    --single-map-height: 400px;
    --full-map-height: 500px;
    --compact-map-height: 200px;
    --stores-map-height: 500px;
    --stores-map-mobile-height: 300px;
    --map-sidebar-width: 350px;
    
    /* =============================================================
       FEATURED CONTENT VARIABLES
       ============================================================= */
    
    /* Bento Grid */
    --bento-gap: 16px;
    --bento-height: 450px;
    --bento-item-bg: var(--color-gray-100);
    --bento-item-radius: 12px;
    
    /* Hero Section */
    --hero-min-height: 500px;
    --hero-min-height-mobile: 400px;
    --hero-bg: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    --hero-border-radius: 16px;
    --hero-title-size: 3.5rem;
    --hero-title-size-mobile: 2.5rem;
    --hero-subtitle-size: 1.25rem;
    --hero-subtitle-size-mobile: 1.125rem;
    
    /* Stats Showcase */
    --stats-bg: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    
    /* Promo Banner */
    --promo-bg: var(--color-primary);
    
    /* Store Callout */
    --store-callout-bg: linear-gradient(135deg, #f093fb 0%, #f5576c 100%);
    
    /* Category Card */
    --category-card-bg: var(--color-gray-100);
    
    /* =============================================================
       RESPONSIVE BREAKPOINTS
       ============================================================= */
    
    --breakpoint-xs: 475px;
    --breakpoint-sm: 640px;
    --breakpoint-md: 768px;
    --breakpoint-lg: 1024px;
    --breakpoint-xl: 1280px;
    --breakpoint-2xl: 1536px;
    
    /* =============================================================
       ANIMATION & TRANSITIONS
       ============================================================= */
    
    --transition-fast: 75ms;
    --transition-normal: 150ms;
    --transition-slow: 300ms;
    --transition-slower: 500ms;
    
    --ease-linear: linear;
    --ease-in: cubic-bezier(0.4, 0, 1, 1);
    --ease-out: cubic-bezier(0, 0, 0.2, 1);
    --ease-in-out: cubic-bezier(0.4, 0, 0.2, 1);
    --ease-bounce: cubic-bezier(0.68, -0.55, 0.265, 1.55);
    
    /* =============================================================
       Z-INDEX SYSTEM
       ============================================================= */
    
    --z-dropdown: 10;
    --z-sticky: 20;
    --z-fixed: 30;
    --z-modal-backdrop: 40;
    --z-modal: 50;
    --z-popover: 60;
    --z-tooltip: 70;
    --z-toast: 80;
    --z-max: 9999;
    
    /* =============================================================
       COMPONENT SIZE SCALES
       ============================================================= */
    
    /* Icon Sizes */
    --icon-size-xs: 12px;
    --icon-size-sm: 16px;
    --icon-size-md: 20px;
    --icon-size-lg: 24px;
    --icon-size-xl: 32px;
    --icon-size-2xl: 48px;
    
    /* Avatar Sizes */
    --avatar-size-xs: 24px;
    --avatar-size-sm: 32px;
    --avatar-size-md: 40px;
    --avatar-size-lg: 48px;
    --avatar-size-xl: 64px;
    --avatar-size-2xl: 80px;
    
    /* =============================================================
       DARK MODE VARIABLES (Optional)
       ============================================================= */
    
    --color-dark-bg: #111827;
    --color-dark-surface: #1f2937;
    --color-dark-border: #374151;
    --text-dark-primary: #f9fafb;
    --text-dark-secondary: #d1d5db;
    --text-dark-muted: #9ca3af;
}

/* =============================================================
   RESPONSIVE VARIABLE ADJUSTMENTS
   ============================================================= */

@media (max-width: 768px) {
    :root {
        /* Adjust spacing for mobile */
        --container-padding: var(--container-padding-mobile);
        --section-padding-y: var(--section-padding-mobile);
        --section-padding-large: var(--section-padding-large-mobile);
        
        /* Adjust font sizes for mobile */
        --font-size-4xl: 2rem;    /* 32px */
        --font-size-3xl: 1.75rem; /* 28px */
        --font-size-2xl: 1.375rem; /* 22px */
        
        /* Adjust component sizes for mobile */
        --card-padding: 16px;
        --btn-padding-x: 16px;
        --grid-gap: 16px;
        --hero-title-size: var(--hero-title-size-mobile);
        --hero-subtitle-size: var(--hero-subtitle-size-mobile);
        --stores-map-height: var(--stores-map-mobile-height);
    }
}

/* =============================================================
   PRINT MODE ADJUSTMENTS
   ============================================================= */

@media print {
    :root {
        --color-primary: #000000;
        --color-secondary: #666666;
        --text-primary: #000000;
        --text-secondary: #333333;
        --color-background: #ffffff;
        --card-bg: #ffffff;
        --card-border-color: #cccccc;
        --shadow-sm: none;
        --shadow-md: none;
        --shadow-lg: none;
    }
}

/* =============================================================
   HIGH CONTRAST MODE SUPPORT
   ============================================================= */

@media (prefers-contrast: high) {
    :root {
        --color-border: #000000;
        --card-border-width: 2px;
        --form-input-border-width: 2px;
        --text-secondary: #333333;
        --text-muted: #666666;
        --focus-ring: 0 0 0 4px rgba(37, 99, 235, 0.5);
    }
}