/* Design Tokens */
@import url('https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600;700&display=swap');

:root {
    /* Colors - Light Theme */
    --bg-primary: #f4f6f9;
    --bg-secondary: #ffffff;
    --bg-tertiary: #edf0f5;
    --bg-hover: #e5e9f0;

    --text-primary: #1a2035;
    --text-secondary: #5a6478;
    --text-tertiary: #9aa3b4;

    --border-color: #dce1eb;
    --border-color-hover: #b0bace;

    /* Priority Colors */
    --priority-high: #e53e3e;
    --priority-medium: #d69e2e;
    --priority-low: #38a169;

    /* Status Colors */
    --status-pending: #718096;
    --status-in-progress: #3182ce;
    --status-completed: #38a169;

    /* Notification Colors */
    --notif-info: #3182ce;
    --notif-success: #38a169;
    --notif-warning: #d69e2e;
    --notif-error: #e53e3e;

    /* Accent Colors */
    --accent-primary: #4361ee;
    --accent-primary-hover: #3451d1;
    --accent-secondary: #7209b7;

    /* Semantic Aliases (used by dashboard) */
    --color-primary: #4361ee;
    --color-success: #38a169;
    --color-warning: #d69e2e;
    --color-danger: #e53e3e;
    --color-gray: #718096;

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

    /* Border Radius */
    --radius-sm: 0.25rem;
    --radius-md: 0.5rem;
    --radius-lg: 0.75rem;
    --radius-xl: 1rem;

    /* Shadows */
    --shadow-xs: 0 1px 2px rgba(0, 0, 0, 0.04);
    --shadow-sm: 0 1px 4px rgba(0, 0, 0, 0.07);
    --shadow-md: 0 4px 12px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 12px 24px rgba(0, 0, 0, 0.12);

    /* Transitions */
    --transition-fast: 150ms ease;
    --transition-normal: 250ms ease;
    --transition-slow: 400ms ease;

    /* Z-index */
    --z-dropdown: 1000;
    --z-modal: 2000;
    --z-notification: 3000;

    /* Typography */
    --font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    --font-size-xs: 0.75rem;
    --font-size-sm: 0.875rem;
    --font-size-md: 1rem;
    --font-size-lg: 1.125rem;
    --font-size-xl: 1.25rem;
    --font-size-2xl: 1.5rem;
}

/* Dark Theme */
[data-theme="dark"] {
    --bg-primary: #0f1117;
    --bg-secondary: #1a1d26;
    --bg-tertiary: #22273a;
    --bg-hover: #2a2f45;

    --text-primary: #e8eaf0;
    --text-secondary: #9aa3b4;
    --text-tertiary: #5a6478;

    --border-color: #2e3347;
    --border-color-hover: #3e4561;

    --shadow-xs: 0 1px 2px rgba(0, 0, 0, 0.3);
    --shadow-sm: 0 1px 4px rgba(0, 0, 0, 0.4);
    --shadow-md: 0 4px 12px rgba(0, 0, 0, 0.4);
    --shadow-lg: 0 12px 24px rgba(0, 0, 0, 0.5);
}