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64px;--space-4xl: 96px}html{scroll-behavior:smooth}body{font-family:var(--font-sans);background:var(--color-bg);color:var(--color-text);line-height:1.7;-webkit-font-smoothing:antialiased;min-height:100dvh;display:flex;flex-direction:column}h1,h2,h3,h4,h5,h6{line-height:1.25;font-weight:700}h1{font-size:clamp(2rem,5vw,3rem)}h2{font-size:clamp(1.6rem,4vw,2.2rem)}h3{font-size:clamp(1.2rem,3vw,1.5rem)}h4{font-size:1.1rem}p{color:var(--color-text-muted);line-height:1.8}strong{color:var(--color-text)}a{color:var(--color-primary-light);text-decoration:none;transition:color .15s}a:hover{text-decoration:underline}code{font-family:var(--font-mono);background:var(--color-surface);padding:2px 6px;border-radius:var(--radius-xs);font-size:.9em;border:1px solid var(--color-border)}pre{font-family:var(--font-mono);background:var(--color-surface);border:1px solid var(--color-border);border-radius:var(--radius-sm);padding:var(--space-lg);overflow-x:auto;font-size:.88rem;line-height:1.7}pre 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