/* CSS Custom Properties for consistent theming */
:root {
    /* Colors */
    --primary-color: #0056b3;
    --primary-light: #007bff;
    --primary-dark: #003f8a;
    --secondary-color: #6c757d;
    --accent-color: #116dff;

    /* Neutral Colors */
    --white: #ffffff;
    --gray-50: #f8f9fa;
    --gray-100: #e9ecef;
    --gray-200: #dee2e6;
    --gray-300: #ced4da;
    --gray-400: #adb5bd;
    --gray-500: #6c757d;
    --gray-600: #495057;
    --gray-700: #343a40;
    --gray-800: #212529;
    --gray-900: #000000;

    /* Typography */
    --font-family-primary: 'Manrope', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    --font-family-mono: 'Fira Code', 'Consolas', 'Monaco', monospace;

    /* Font Sizes */
    --font-size-xs: 0.75rem;
    --font-size-sm: 0.875rem;
    --font-size-base: 1rem;
    --font-size-lg: 1.125rem;
    --font-size-xl: 1.25rem;
    --font-size-2xl: 1.5rem;
    --font-size-3xl: 1.875rem;
    --font-size-4xl: 2.25rem;
    --font-size-5xl: 3rem;

    /* Font Weights */
    --font-weight-light: 300;
    --font-weight-normal: 400;
    --font-weight-medium: 500;
    --font-weight-semibold: 600;
    --font-weight-bold: 700;

    /* Spacing */
    --spacing-xs: 0.25rem;
    --spacing-sm: 0.5rem;
    --spacing-md: 1rem;
    --spacing-lg: 1.5rem;
    --spacing-xl: 2rem;
    --spacing-2xl: 3rem;
    --spacing-3xl: 4rem;

    /* Border Radius */
    --border-radius-sm: 0.25rem;
    --border-radius-md: 0.375rem;
    --border-radius-lg: 0.5rem;
    --border-radius-xl: 0.75rem;
    --border-radius-2xl: 1rem;
    --border-radius-full: 9999px;

    /* Shadows */
    --shadow-sm: 0 1px 2px 0 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);

    /* Transitions */
    --transition-fast: 150ms ease-in-out;
    --transition-normal: 250ms ease-in-out;
    --transition-slow: 350ms ease-in-out;

    /* Layout */
    --max-width-sm: 640px;
    --max-width-md: 768px;
    --max-width-lg: 1024px;
    --max-width-xl: 1280px;
    --max-width-2xl: 1536px;
    --max-width-content: 1200px;

    /* Z-index */
    --z-dropdown: 1000;
    --z-sticky: 1020;
    --z-fixed: 1100;
    --z-modal-backdrop: 1040;
    --z-modal: 1050;
    --z-popover: 1060;
    --z-tooltip: 1070;

    /* Header Component Variables */
    --header-margin-mobile: 8px 16px 0 16px;
    --header-margin-desktop: 16px 40px 0 40px;
    --header-width-mobile: calc(100% - 32px);
    --header-width-desktop: calc(100% - 80px);
    --header-border-radius: 16px;
    --header-backdrop-blur: 20px;
    --header-background: rgba(255, 255, 255, 0.95);
    --header-border: 1px solid rgba(255, 255, 255, 0.2);
    --header-shadow: 0 2px 8px rgba(0, 0, 0, 0.04), 0 1px 3px rgba(0, 0, 0, 0.06);
    --header-gradient: linear-gradient(135deg, rgba(255,255,255,0.9) 0%, rgba(255,255,255,0.8) 100%);
    
    --header-container-padding-mobile: 0 24px;
    --header-container-padding-desktop: 0 48px;
    --header-toolbar-height-mobile: 64px;
    --header-toolbar-height-desktop: 72px;
    
    --header-logo-gap: 0.5rem;
    --header-logo-transition: opacity 150ms ease-in-out;
    
    --header-nav-gap: 3rem;
    --header-nav-link-padding: 1rem 3rem;
    --header-nav-link-border-radius: 12px;
    --header-nav-link-transition: all 0.2s ease;
    --header-nav-link-hover-bg: rgba(0, 0, 0, 0.06);
    --header-nav-dot-size: 6px;
    
    --header-actions-gap: 4rem;
    
    --header-language-selector-gap: 1.5rem;
    --header-language-selector-padding: 1rem;
    --header-language-selector-bg: rgba(0, 0, 0, 0.06);
    --header-language-selector-border: 1px solid rgba(255, 255, 255, 0.2);
    --header-language-button-padding: 1rem;
    --header-language-button-border-radius: 6px;
    
    --header-contact-button-padding: 1rem 3rem;
    --header-contact-button-border-radius: 12px;
    --header-contact-button-shadow: 0 4px 16px rgba(0, 86, 179, 0.3);
    --header-contact-button-shadow-hover: 0 6px 24px rgba(0, 86, 179, 0.4);
    --header-contact-button-gradient: linear-gradient(135deg, #0056b3 0%, #003f8a 100%);
    --header-contact-button-gradient-hover: linear-gradient(135deg, #003f8a 0%, #0056b3 100%);
    
    --header-mobile-menu-z-index: 1300;
    --header-mobile-menu-overlay-bg: rgba(0, 0, 0, 0.5);
    --header-mobile-menu-max-width: 400px;
    --header-mobile-menu-animation: slideInRight 0.3s ease-out;
}