:root {
	/* Colors */
	--color-bg-primary: #ffffff;
	--color-bg-secondary: #f8fafc;
	--color-bg-dark: #0f172a;
	--color-bg-darker: #020617;
	
	--color-text-primary: #1e293b;
	--color-text-secondary: #475569;
	--color-text-light: #f8fafc;
	--color-text-muted: #94a3b8;
	
	--color-accent-primary: #2563eb;
	--color-accent-hover: #1d4ed8;
	--color-accent-secondary: #0ea5e9;
	--color-accent-tertiary: #6366f1;
	
	--color-status-completed: #10b981;
	--color-status-building: #f59e0b;
	--color-status-planned: #64748b;
	--color-status-archived: #cbd5e1;

	--color-border: #e2e8f0;
	--color-border-dark: #334155;

	/* Typography */
	--font-primary: 'Inter', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
	--font-secondary: 'Inter', sans-serif;
	
	--text-xs: 0.75rem;
	--text-sm: 0.875rem;
	--text-base: 1rem;
	--text-lg: 1.125rem;
	--text-xl: 1.25rem;
	--text-2xl: 1.5rem;
	--text-3xl: 1.875rem;
	--text-4xl: 2.25rem;
	--text-5xl: 3rem;

	/* Spacing */
	--spacing-1: 0.25rem;
	--spacing-2: 0.5rem;
	--spacing-3: 0.75rem;
	--spacing-4: 1rem;
	--spacing-6: 1.5rem;
	--spacing-8: 2rem;
	--spacing-12: 3rem;
	--spacing-16: 4rem;
	--spacing-24: 6rem;
	--spacing-32: 8rem;

	/* Layout */
	--container-width: 1200px;
	--container-padding: var(--spacing-4);
	
	/* Borders & Shadows */
	--radius-sm: 4px;
	--radius-md: 8px;
	--radius-lg: 12px;
	--radius-full: 9999px;
	
	--shadow-sm: 0 1px 2px 0 rgb(0 0 0 / 0.05);
	--shadow-md: 0 4px 6px -1px rgb(0 0 0 / 0.1), 0 2px 4px -2px rgb(0 0 0 / 0.1);
	--shadow-lg: 0 10px 15px -3px rgb(0 0 0 / 0.1), 0 4px 6px -4px rgb(0 0 0 / 0.1);
	
	/* Transitions */
	--transition-fast: 150ms ease;
	--transition-normal: 300ms ease;
	
	/* Z-Index */
	--z-header: 40;
	--z-overlay: 50;
	--z-modal: 60;
}