/* 
 * Skyways Transport - Theme Variables
 * Centralized theme variables for consistent styling across the application
 * Use CSS custom properties for easy theme management
 */

:root {
    /* Primary Brand Colors - Skyways Orange */
    --primary-color: #FF7A00;
    --primary-dark: #e66a00;
    --primary-light: #ff9500;
    --primary-lighter: #ffaa33;
    --primary-lightest: #ffe6cc;
    
    /* Secondary Colors - Skyways Dark Blue */
    --secondary-color: #000066;
    --secondary-dark: #000033;
    --secondary-light: #1a1a2e;
    --secondary-lighter: #16213e;
    --secondary-lightest: #0f3460;
    
    /* Sidebar Gradient Colors */
    --sidebar-gradient-start: #1a1a2e;
    --sidebar-gradient-mid: #16213e;
    --sidebar-gradient-end: #0f3460;
    --sidebar-gradient: linear-gradient(180deg, var(--sidebar-gradient-start) 0%, var(--sidebar-gradient-mid) 50%, var(--sidebar-gradient-end) 100%);
    
    /* Accent Colors */
    --accent-color: #FF7A00;
    --accent-dark: #e66a00;
    --accent-light: #ff9500;
    --accent-lighter: #ffaa33;
    --accent-lightest: #ffe6cc;
    
    /* Status Colors */
    --success-color: #10b981;
    --success-dark: #059669;
    --success-light: #34d399;
    --success-lightest: #d1fae5;
    
    --warning-color: #ffc107;
    --warning-dark: #ffb300;
    --warning-light: #ffca2c;
    --warning-lightest: #fff3cd;
    --warning-gradient: linear-gradient(135deg, #ffc107, #ffca2c);
    
    --error-color: #ef4444;
    --error-dark: #dc2626;
    --error-light: #f87171;
    --error-lightest: #fee2e2;
    
    --info-color: #3b82f6;
    --info-dark: #2563eb;
    --info-light: #60a5fa;
    --info-lightest: #dbeafe;
    
    /* Neutral Colors */
    --gray-50: #f9fafb;
    --gray-100: #f3f4f6;
    --gray-200: #e5e7eb;
    --gray-300: #d1d5db;
    --gray-400: #9ca3af;
    --gray-500: #6b7280;
    --gray-600: #4b5563;
    --gray-700: #374151;
    --gray-800: #1f2937;
    --gray-900: #111827;
    
    /* Background Colors */
    --bg-primary: #ffffff;
    --bg-secondary: #f9fafb;
    --bg-tertiary: #f3f4f6;
    --bg-dark: #1f2937;
    --bg-darker: #111827;
    
    /* Text Colors */
    --text-primary: #111827;
    --text-secondary: #4b5563;
    --text-tertiary: #6b7280;
    --text-light: #9ca3af;
    --text-white: #ffffff;
    --text-inverse: #ffffff;
    
    /* Border Colors */
    --border-color: #e5e7eb;
    --border-color-light: #f3f4f6;
    --border-color-dark: #d1d5db;
    --border-focus: #3b82f6;
    
    /* Shadow */
    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
    --shadow: 0 1px 3px 0 rgba(0, 0, 0, 0.1), 0 1px 2px 0 rgba(0, 0, 0, 0.06);
    --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);
    
    /* Sidebar Specific Shadows */
    --sidebar-shadow: 4px 0 20px rgba(0, 0, 0, 0.3);
    --sidebar-toggle-shadow: 0 4px 15px rgba(255, 122, 0, 0.4);
    --sidebar-toggle-shadow-hover: 0 6px 20px rgba(255, 122, 0, 0.6);
    --nav-link-shadow: 0 4px 15px rgba(255, 122, 0, 0.3);
    --nav-link-shadow-active: 0 4px 15px rgba(255, 122, 0, 0.4);
    
    /* Spacing */
    --spacing-xs: 0.25rem;   /* 4px */
    --spacing-sm: 0.5rem;     /* 8px */
    --spacing-md: 1rem;       /* 16px */
    --spacing-lg: 1.5rem;     /* 24px */
    --spacing-xl: 2rem;       /* 32px */
    --spacing-2xl: 3rem;      /* 48px */
    --spacing-3xl: 4rem;      /* 64px */
    
    /* Border Radius */
    --radius-sm: 0.25rem;     /* 4px */
    --radius: 0.375rem;       /* 6px */
    --radius-md: 0.5rem;      /* 8px */
    --radius-lg: 0.75rem;     /* 12px */
    --radius-xl: 1rem;        /* 16px */
    --radius-full: 9999px;
    
    /* Typography */
    --font-family-base: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    --font-family-heading: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    --font-family-mono: 'Courier New', Courier, monospace;
    
    --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-weight-light: 300;
    --font-weight-normal: 400;
    --font-weight-medium: 500;
    --font-weight-semibold: 600;
    --font-weight-bold: 700;
    
    --line-height-tight: 1.25;
    --line-height-normal: 1.5;
    --line-height-relaxed: 1.75;
    
    /* Transitions */
    --transition-fast: 150ms ease-in-out;
    --transition-base: 200ms ease-in-out;
    --transition-slow: 300ms ease-in-out;
    
    /* Z-Index Layers */
    --z-dropdown: 1000;
    --z-sticky: 1020;
    --z-fixed: 1030;
    --z-modal-backdrop: 1040;
    --z-modal: 1050;
    --z-popover: 1060;
    --z-tooltip: 1070;
    
    /* Layout */
    --header-height: 64px;
    --sidebar-width: 280px;
    --sidebar-collapsed-width: 80px;
    --footer-height: 60px;
    
    /* Sidebar Specific */
    --sidebar-border-width: 3px;
    --sidebar-border-color: var(--primary-color);
    --sidebar-header-bg: rgba(255, 122, 0, 0.1);
    --sidebar-section-divider: rgba(255, 255, 255, 0.1);
    --sidebar-text-primary: #ffffff;
    --sidebar-text-secondary: rgba(255, 255, 255, 0.7);
    --sidebar-text-tertiary: rgba(255, 255, 255, 0.5);
    
    /* Navbar Specific */
    --navbar-bg: #ffffff;
    --navbar-border-color: var(--primary-color);
    --navbar-border-width: 2px;
    --navbar-text-color: var(--secondary-color);
    
    /* Transitions */
    --transition-sidebar: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    --transition-nav-link: all 0.3s ease;
    --transition-button: opacity 0.2s ease-in-out;
    
    /* Breakpoints (for reference, use in media queries) */
    --breakpoint-sm: 640px;
    --breakpoint-md: 768px;
    --breakpoint-lg: 1024px;
    --breakpoint-xl: 1280px;
    --breakpoint-2xl: 1536px;
}

/* Staff Interface Specific Variables */
/* Note: Staff and Customer interfaces use the same theme colors */
/* Differences are in layout (desktop vs mobile optimized) */
.staff-theme {
    /* Staff interface uses default theme variables */
    /* Desktop-optimized sidebar and navbar layout */
    /* Interface-specific overrides can be added here */
    color: inherit; /* Placeholder to avoid empty ruleset */
}

/* Customer Interface Specific Variables */
.customer-theme {
    /* Customer interface uses default theme variables */
    /* Mobile-optimized sidebar and navbar layout */
    /* Interface-specific overrides can be added here */
    color: inherit; /* Placeholder to avoid empty ruleset */
}