:root{--font-sans: "Sen", system-ui, -apple-system, sans-serif;--color-bg: #0a0a0a;--color-surface: #1a1a1a;--color-primary: #3b82f6;--color-primary-glow: rgba(59, 130, 246, .5);--color-text: #ffffff;--color-text-dim: #a1a1aa;--spacing-sm: .5rem;--spacing-md: 1rem;--spacing-lg: 2rem;--spacing-xl: 4rem;--radius-md: 8px;--radius-lg: 16px}*{box-sizing:border-box;margin:0;padding:0}body{font-family:Sen,system-ui,-apple-system,sans-serif;background-color:var(--color-bg);color:var(--color-text);line-height:1.6;-webkit-font-smoothing:antialiased;min-height:100vh}input,button,textarea,select{font-family:Sen,system-ui,-apple-system,sans-serif}a{color:var(--color-primary);text-decoration:none;transition:color .2s}a:hover{text-decoration:underline}button{cursor:pointer}