:root { --font: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", "Roboto", "Oxygen", "Ubuntu", "Cantarell", "Fira Sans", "Droid Sans", sans-serif; --font-italic: "Georgia", serif; --font-code: ui-monospace, SFMono-Regular, SF Mono, Menlo, Consolas, Liberation Mono, monospace; --font-size: 1.2rem; --font-weight-semibold: 700; --font-weight-bold: 900; --leading: 1.45; --gutter: clamp(1ch, 2.5vmax, 3ch); --stack: clamp(1.25ex, 1ex + 2.5vmax, 1.75ex); --line-length-small: 30ch; --line-length: 75ch; --line-length-large: 115ch; --page-padding-inline: calc((100vw - min(var(--line-length), 80vw)) / 2); --border-width: 1px; --border-radius: 4px; }