/* eFullSport.com - Design System Variables */

:root {
    /* ========================================
       COLOR SYSTEM
       ======================================== */
    
    /* Primary Colors */
    --color-primary: #0066FF;
    --color-primary-dark: #0052CC;
    --color-primary-light: #3385FF;
    
    /* Brand Colors */
    --color-neon-yellow: #D4FF00;
    --color-neon-yellow-dark: #CCFF00;
    
    /* Neutral Colors - Dark */
    --color-navy: #0A1628;
    --color-navy-light: #1A2332;
    --color-dark: #1F2937;
    --color-dark-gray: #374151;
    
    /* Neutral Colors - Light */
    --color-white: #FFFFFF;
    --color-light-gray: #F5F5F5;
    --color-light-gray-2: #F8F9FA;
    --color-medium-gray: #6B7280;
    --color-border-gray: #E5E7EB;
    
    /* Semantic Colors */
    --color-success: #10B981;
    --color-warning: #F59E0B;
    --color-error: #EF4444;
    --color-info: #3B82F6;
    
    /* ========================================
       TYPOGRAPHY
       ======================================== */
    
    /* Font Families */
    --font-primary: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    --font-mono: 'SF Mono', Monaco, 'Cascadia Code', 'Roboto Mono', Consolas, 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-size-6xl: 3.75rem;     /* 60px */
    --font-size-7xl: 4.5rem;      /* 72px */
    
    /* Font Weights */
    --font-weight-normal: 400;
    --font-weight-medium: 500;
    --font-weight-semibold: 600;
    --font-weight-bold: 700;
    --font-weight-extrabold: 800;
    --font-weight-black: 900;
    
    /* Line Heights */
    --line-height-tight: 1.1;
    --line-height-snug: 1.2;
    --line-height-normal: 1.5;
    --line-height-relaxed: 1.6;
    --line-height-loose: 1.8;
    
    /* Letter Spacing */
    --letter-spacing-tight: -0.02em;
    --letter-spacing-normal: 0;
    --letter-spacing-wide: 0.05em;
    --letter-spacing-wider: 0.1em;
    
    /* ========================================
       SPACING SYSTEM (8px base)
       ======================================== */
    
    --space-xs: 0.5rem;    /* 8px */
    --space-sm: 1rem;      /* 16px */
    --space-md: 1.5rem;    /* 24px */
    --space-lg: 2rem;      /* 32px */
    --space-xl: 3rem;      /* 48px */
    --space-2xl: 4rem;     /* 64px */
    --space-3xl: 6rem;     /* 96px */
    --space-4xl: 8rem;     /* 128px */
    
    /* ========================================
       LAYOUT
       ======================================== */
    
    /* Container */
    --container-max-width: 1280px;
    --container-padding: var(--space-md);
    
    /* Grid */
    --grid-columns: 12;
    --grid-gutter: var(--space-md);
    
    /* Breakpoints */
    --breakpoint-sm: 640px;
    --breakpoint-md: 768px;
    --breakpoint-lg: 1024px;
    --breakpoint-xl: 1280px;
    --breakpoint-2xl: 1536px;
    
    /* ========================================
       BORDER RADIUS
       ======================================== */
    
    --radius-sm: 0.25rem;   /* 4px */
    --radius-md: 0.5rem;    /* 8px */
    --radius-lg: 1rem;      /* 16px */
    --radius-xl: 1.5rem;    /* 24px */
    --radius-full: 9999px;
    
    /* ========================================
       SHADOWS
       ======================================== */
    
    --shadow-xs: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
    --shadow-sm: 0 2px 4px 0 rgba(0, 0, 0, 0.08);
    --shadow-md: 0 4px 8px 0 rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 8px 16px 0 rgba(0, 0, 0, 0.12);
    --shadow-xl: 0 12px 24px 0 rgba(0, 0, 0, 0.15);
    --shadow-2xl: 0 24px 48px 0 rgba(0, 0, 0, 0.2);
    
    /* Button Shadows */
    --shadow-button-primary: 0 4px 12px rgba(0, 102, 255, 0.3);
    --shadow-button-hover: 0 6px 16px rgba(0, 102, 255, 0.4);
    
    /* Card Shadows */
    --shadow-card: var(--shadow-md);
    --shadow-card-hover: var(--shadow-xl);
    
    /* ========================================
       TRANSITIONS
       ======================================== */
    
    --transition-fast: 150ms ease-in-out;
    --transition-base: 300ms ease-in-out;
    --transition-slow: 500ms ease-in-out;
    
    /* Transition Properties */
    --transition-all: all var(--transition-base);
    --transition-colors: color var(--transition-base), background-color var(--transition-base), border-color var(--transition-base);
    --transition-transform: transform var(--transition-base);
    --transition-shadow: box-shadow var(--transition-base);
    
    /* ========================================
       Z-INDEX SCALE
       ======================================== */
    
    --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;
    
    /* ========================================
       COMPONENT SPECIFIC
       ======================================== */
    
    /* Navbar */
    --navbar-height: 70px;
    --navbar-bg: var(--color-navy);
    --navbar-bg-blur: rgba(10, 22, 40, 0.95);
    
    /* Hero */
    --hero-min-height: 600px;
    --hero-padding-y: var(--space-3xl);
    
    /* Buttons */
    --button-padding-x: 2rem;
    --button-padding-y: 1rem;
    --button-font-size: var(--font-size-base);
    --button-font-weight: var(--font-weight-bold);
    --button-border-radius: var(--radius-sm);
    
    /* Cards */
    --card-padding: var(--space-lg);
    --card-border-radius: var(--radius-md);
    --card-bg: var(--color-white);
    
    /* Icons */
    --icon-size-sm: 1.5rem;   /* 24px */
    --icon-size-md: 2.5rem;   /* 40px */
    --icon-size-lg: 4rem;     /* 64px */
    
    /* ========================================
       GRADIENTS
       ======================================== */
    
    --gradient-primary: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-dark) 100%);
    --gradient-hero: linear-gradient(135deg, #0A1628 0%, #1A2332 100%);
    --gradient-blue-dark: linear-gradient(180deg, var(--color-primary) 0%, #003D99 100%);
    --gradient-overlay: linear-gradient(180deg, rgba(0,0,0,0.3) 0%, rgba(0,0,0,0.1) 100%);
    
    /* ========================================
       BACKDROP FILTERS
       ======================================== */
    
    --backdrop-blur-sm: blur(8px);
    --backdrop-blur-md: blur(12px);
    --backdrop-blur-lg: blur(16px);
}

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

/* Dark mode variables can be added here when needed */

/* ========================================
   RESPONSIVE FONT SIZES
   ======================================== */

@media (max-width: 768px) {
    :root {
        --font-size-6xl: 2.5rem;   /* 40px */
        --font-size-7xl: 3rem;     /* 48px */
        --container-padding: var(--space-sm);
    }
}

@media (max-width: 640px) {
    :root {
        --font-size-5xl: 2rem;     /* 32px */
        --font-size-6xl: 2.25rem;  /* 36px */
        --font-size-7xl: 2.5rem;   /* 40px */
    }
}