/* CSS Variables for Light and Dark Theme */

:root[data-theme="light"] {
    /* Colors */
    --color-primary: #2563eb;
    --color-primary-dark: #1e40af;
    --color-primary-light: #3b82f6;
    --color-secondary: #7c3aed;
    --color-secondary-dark: #6d28d9;
    --color-secondary-light: #8b5cf6;

    /* Text Colors */
    --color-text-primary: #1f2937;
    --color-text-secondary: #4b5563;
    --color-text-muted: #6b7280;

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

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

    /* Status Colors */
    --color-success: #10b981;
    --color-error: #ef4444;
    --color-warning: #f59e0b;
    --color-info: #3b82f6;

    /* 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);
}

:root[data-theme="dark"] {
    /* Colors */
    --color-primary: #3b82f6;
    --color-primary-dark: #2563eb;
    --color-primary-light: #60a5fa;
    --color-secondary: #8b5cf6;
    --color-secondary-dark: #7c3aed;
    --color-secondary-light: #a78bfa;

    /* Text Colors */
    --color-text-primary: #f9fafb;
    --color-text-secondary: #e5e7eb;
    --color-text-muted: #9ca3af;

    /* Background Colors */
    --color-bg-primary: #111827;
    --color-bg-secondary: #1f2937;
    --color-bg-tertiary: #374151;

    /* Border Colors */
    --color-border: #374151;
    --color-border-dark: #4b5563;

    /* Status Colors */
    --color-success: #10b981;
    --color-error: #f87171;
    --color-warning: #fbbf24;
    --color-info: #60a5fa;

    /* Shadows */
    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.3);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.4), 0 2px 4px -1px rgba(0, 0, 0, 0.3);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.4), 0 4px 6px -2px rgba(0, 0, 0, 0.3);
    --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.4), 0 10px 10px -5px rgba(0, 0, 0, 0.3);
}

/* Typography */
:root {
    --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-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-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;
}

/* Spacing */
:root {
    --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 */
    --spacing-4xl: 6rem;
    /* 96px */
}

/* Border Radius */
:root {
    --radius-sm: 0.25rem;
    /* 4px */
    --radius-md: 0.375rem;
    /* 6px */
    --radius-lg: 0.5rem;
    /* 8px */
    --radius-xl: 0.75rem;
    /* 12px */
    --radius-2xl: 1rem;
    /* 16px */
    --radius-full: 9999px;
}

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

/* Container */
:root {
    --container-max-width: 1280px;
    --container-padding: var(--spacing-md);
}

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