:root{--color-bg: #ffffff;--color-surface: #f4f4f5;--color-surface-hover: #e9e9ec;--color-border: #d4d4d8;--color-text: #18181b;--color-text-muted: #71717a;--color-accent: #4f46e5;--color-accent-text: #ffffff;--radius: .5rem;--shadow: 0 1px 3px rgba(0, 0, 0, .1);color-scheme:light}:root[data-theme=dark]{--color-bg: #18181b;--color-surface: #27272a;--color-surface-hover: #3f3f46;--color-border: #3f3f46;--color-text: #f4f4f5;--color-text-muted: #a1a1aa;--color-accent: #818cf8;--color-accent-text: #18181b;color-scheme:dark}*{box-sizing:border-box}html,body{margin:0;padding:0}body{background:var(--color-bg);color:var(--color-text);font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Helvetica,Arial,sans-serif;line-height:1.5;transition:background-color .2s ease,color .2s ease}a{color:var(--color-accent)}