:root{--color-primary: #3b82f6;--color-primary-hover: #2563eb;--color-bg: #f4f6f9;--color-surface: #ffffff;--color-border: #dee2e6;--color-text: #212529;--color-muted: #6c757d;--spacing-sm: .5rem;--spacing-md: 1rem;--spacing-lg: 1.5rem;--border-radius: .5rem}html,body{height:100%}body{margin:0;background-color:var(--color-bg);color:var(--color-text)}