:root{color-scheme: light;font-family: ui-sans-serif,system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;color: #1f2937;background: #f8fafc}*{box-sizing: border-box}body{margin: 0;line-height: 1.7}main{width: min(720px,calc(100% - 2rem));margin: 0 auto;padding: clamp(3rem,8vw,6rem) 0}h1{margin: 0 0 0.75rem;font-size: clamp(2.2rem,6vw,3.5rem);line-height: 1.1}.last-updated{margin: 0 0 2rem;color: #64748b}h2{margin-top: 2.5rem;font-size: 1.25rem}a{color: #1d4ed8;text-underline-offset: 0.2em}a:focus-visible{border-radius: 3px;outline: 3px solid #f59e0b;outline-offset: 4px}.back-link{display: inline-block;margin-top: 2.5rem;font-weight: 700}