*{margin:0;padding:0;box-sizing:border-box}:root{--bg-color:#fafafa;--text-color:#2c2c2c;--text-color-secondary:#4d4d4d;--text-color-muted:#6a6a6a;--border-subtle:#e0e0e0;--space-1:0.25rem;--space-2:0.5rem;--space-3:0.75rem;--space-4:1rem;--space-6:1.5rem;--space-8:2rem;--space-12:3rem;--space-16:4rem;--space-20:5rem;--space-24:6rem}body{font-family:Inter,-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Helvetica Neue,sans-serif;font-size:17px;line-height:1.75;color:var(--text-color);background-color:var(--bg-color);-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;text-rendering:optimizeLegibility;-webkit-text-size-adjust:100%;font-weight:400;letter-spacing:-.008em;display:flex;flex-direction:column;min-height:100vh}main{max-width:680px;margin:0 auto;padding:0;flex:1 1}.site-header{border-bottom:1px solid var(--border-subtle);background-color:var(--bg-color)}.site-nav{max-width:680px;margin:0 auto;padding:var(--space-6) 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