/**
 * CSS Variables - Design System
 * Based on IPPGI Figma design specifications
 *
 * @package IPPGI
 */

:root {
    /* Primary Colors - Header Gradient */
    --color-primary: #00B4D8;
    --color-primary-dark: #0077B6;
    --color-primary-gradient: linear-gradient(135deg, #00B4D8 0%, #0077B6 100%);

    /* Background Colors */
    --color-bg-dark: #1a2332;
    --color-bg-light: #ffffff;
    --color-bg-gray: #f5f5f5;
    --color-table-header: #E8F4F8;

    /* Text Colors */
    --color-text-primary: #333333;
    --color-text-secondary: #666666;
    --color-text-muted: #999999;
    --color-text-white: #ffffff;
    --color-link: #0077B6;
    --color-link-hover: #005a8c;

    /* Status Colors */
    --color-success: #28a745;
    --color-danger: #dc3545;
    --color-warning: #ffc107;
    --color-info: #17a2b8;

    /* Border Colors */
    --color-border: #e0e0e0;
    --color-border-light: #f0f0f0;

    /* Typography */
    --font-family-base: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
    --font-family-mono: "SF Mono", Monaco, Consolas, "Liberation Mono", "Courier New", monospace;

    /* Font Sizes */
    --font-size-xs: 0.75rem;    /* 12px */
    --font-size-sm: 0.875rem;   /* 14px */
    --font-size-base: 1rem;     /* 16px */
    --font-size-md: 1.125rem;   /* 18px */
    --font-size-lg: 1.25rem;    /* 20px */
    --font-size-xl: 1.5rem;     /* 24px */
    --font-size-2xl: 2rem;      /* 32px */
    --font-size-3xl: 2.5rem;    /* 40px */

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

    /* Line Heights */
    --line-height-tight: 1.25;
    --line-height-base: 1.5;
    --line-height-relaxed: 1.75;

    /* 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: 4px;
    --radius-md: 8px;
    --radius-lg: 12px;
    --radius-xl: 16px;
    --radius-full: 9999px;

    /* Shadows */
    --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 6px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 10px 15px rgba(0, 0, 0, 0.1);
    --shadow-xl: 0 20px 25px rgba(0, 0, 0, 0.15);

    /* Container */
    --container-max-width: 1200px;
    --container-padding: var(--spacing-md);

    /* Header */
    --header-height-mobile: 44px;
    --header-height-desktop: 56px;

    /* Transitions */
    --transition-fast: 150ms ease;
    --transition-base: 300ms ease;
    --transition-slow: 500ms ease;

    /* Z-index layers */
    --z-dropdown: 100;
    --z-sticky: 200;
    --z-fixed: 300;
    --z-modal-backdrop: 400;
    --z-modal: 500;
    --z-toast: 550;
    --z-tooltip: 600;

    /* Additional shorthand variables */
    --color-bg: var(--color-bg-light);
    --color-text: var(--color-text-primary);
    --border-radius-sm: var(--radius-sm);
    --border-radius-md: var(--radius-md);
    --border-radius-lg: var(--radius-lg);
}

/* Dark mode variables (for future use) */
@media (prefers-color-scheme: dark) {
    :root {
        /* Dark mode overrides can be added here */
    }
}