:root{--hf-bg:#1a1a1a;--hf-primary:#fff;--hf-secondary:#9ca3af;--hf-muted:#6b7280;--hf-hairline:hsla(0,0%,100%,.1);--hf-input-border:#1f2937;--hf-input-focus:hsla(0,0%,100%,.45);--hf-gutter:16px;--hf-sans:-apple-system,BlinkMacSystemFont,"SF Pro Text","Segoe UI",Helvetica,Arial,sans-serif;--hf-mono:ui-monospace,"SF Mono",SFMono-Regular,Menlo,Consolas,monospace;color-scheme:dark}body,html{margin:0;background:var(--hf-bg);color:var(--hf-primary);font-family:var(--hf-sans);-webkit-font-smoothing:antialiased}*,:after,:before{box-sizing:border-box}.hf-page{width:100%;max-width:680px;margin:0 auto;padding:24px var(--hf-gutter) 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