/**
 * Study Ranger - CSS Variables
 * 
 * This file contains all CSS custom properties (variables) used throughout
 * the application. Modify these values to customize the color scheme.
 */

:root {
    /* Primary Colors - Deep Blue */
    --primary-color: #1F5092;
    --primary-hover: #174073;
    --primary-light: #2a6bb5;
    --primary-dark: #0f2d54;

    /* Secondary Colors - Golden Yellow */
    --secondary-color: #eec646;
    --secondary-hover: #d4af2e;
    --secondary-light: #f3d56e;
    --secondary-dark: #c99b1f;

    /* Accent Colors - Bright Blue */
    --accent-color: #35B7FB;
    --accent-hover: #1a9de8;
    --accent-light: #5dc7fc;
    --accent-dark: #0f8cd9;

    /* Success Colors */
    --success-color: #10b981;
    --success-light: #d1fae5;
    --success-dark: #047857;

    /* Warning Colors */
    --warning-color: #f59e0b;
    --warning-light: #fef3c7;
    --warning-dark: #d97706;

    /* Error Colors */
    --error-color: #ef4444;
    --error-light: #fee2e2;
    --error-dark: #dc2626;

    /* Info Colors */
    --info-color: #3b82f6;
    --info-light: #dbeafe;
    --info-dark: #2563eb;

    /* Neutral Colors */
    --white: #ffffff;
    --black: #000000;
    --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;

    /* Text Colors */
    --text-primary: #111827;
    --text-secondary: #6b7280;
    --text-muted: #9ca3af;
    --text-white: #ffffff;

    /* Background Colors */
    --bg-primary: #ffffff;
    --bg-secondary: #f9fafb;
    --bg-tertiary: #f3f4f6;
    --bg-dark: #111827;

    /* Border Colors */
    --border-color: #e5e7eb;
    --border-light: #f3f4f6;
    --border-dark: #d1d5db;

    /* Shadow */
    --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);

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

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

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

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

    /* Transitions */
    --transition-fast: 150ms ease-in-out;
    --transition-base: 200ms ease-in-out;
    --transition-slow: 300ms ease-in-out;

    /* Z-Index */
    --z-dropdown: 1000;
    --z-sticky: 1020;
    --z-fixed: 1030;
    --z-modal-backdrop: 1040;
    --z-modal: 1050;
    --z-popover: 1060;
    --z-tooltip: 1070;
}