/* ============================================================================ XARQ — reset, elements, typography primitives ========================================================================== */ *, *::before, *::after { box-sizing: border-box; } * { margin: 0; } html { -webkit-text-size-adjust: 100%; /* Paired with the same rule on body. A decorative element that reaches past the viewport (the aurora blobs, the oversized footer wordmark) must never be able to produce a horizontal scrollbar; `clip` does that without making either element a scroll container, which `hidden` would. */ overflow-x: clip; /* Lenis drives scrolling. Native smooth-scroll on top of it produces two competing interpolators and a visible stutter on anchor jumps. */ scroll-behavior: auto; } /* Lenis sets .lenis-smooth on ; the two rules below are the library's required host styles, inlined so there is no extra stylesheet request. */ html.lenis, html.lenis body { height: auto; } .lenis.lenis-smooth { scroll-behavior: auto !important; } .lenis.lenis-smooth [data-lenis-prevent] { overscroll-behavior: contain; } .lenis.lenis-stopped { overflow: hidden; } body { background: var(--bg); color: var(--text); font-family: var(--font-body); font-size: var(--t-base); line-height: var(--lh-body); font-synthesis-weight: none; -webkit-font-smoothing: antialiased; -moz-osx-font-smoothing: grayscale; text-rendering: optimizeLegibility; overflow-x: clip; /* The theme swap is a genuine material change, so it is worth animating — but only the page ground, never every element (that would cost a repaint of the whole tree on each toggle). */ transition: background-color var(--dur) var(--ease-out), color var(--dur) var(--ease-out); } img, picture, svg, canvas, video { display: block; max-width: 100%; } img { height: auto; } input, button, textarea, select { font: inherit; color: inherit; } button { background: none; border: 0; cursor: pointer; } a { color: inherit; text-decoration: none; } ul, ol { list-style: none; padding: 0; } :where(h1, h2, h3, h4, h5) { font-family: var(--font-display); font-weight: 600; line-height: var(--lh-snug); letter-spacing: var(--ls-tight); text-wrap: balance; } p { text-wrap: pretty; } /* ------------------------------------------------------------------ focus Focus is only ever drawn for keyboard users, but when it is drawn it is unmissable — a 2px accent ring with an offset so it clears rounded corners. */ :focus { outline: none; } :focus-visible { outline: 2px solid var(--accent); outline-offset: 3px; border-radius: var(--r-sm); } ::selection { background: color-mix(in oklab, var(--accent) 34%, transparent); color: var(--text); } /* ---------------------------------------------------------------- scrollbar */ @supports (scrollbar-width: thin) { html { scrollbar-width: thin; scrollbar-color: var(--line-strong) transparent; } } /* ------------------------------------------------------------------- utils */ .u-container { width: 100%; max-width: var(--maxw); margin-inline: auto; padding-inline: var(--gutter); } .u-prose { max-width: var(--maxw-prose); color: var(--text-2); font-size: var(--t-lg); } /* Gradient ink. -webkit-background-clip is still the only cross-browser spelling that Safari honours, so both are declared. */ .u-grad { background: var(--grad-brand); background-clip: text; -webkit-background-clip: text; color: transparent; -webkit-text-fill-color: transparent; } .serif { font-family: var(--font-serif); font-style: italic; font-weight: 400; /* Instrument Serif sits on a smaller x-height than Clash Display; without the bump an accent word reads a size smaller than the words beside it. */ font-size: 1.08em; letter-spacing: -0.01em; /* Italic overhang. With background-clip:text the gradient is clipped to the element's box, and the last glyph's tail sits outside it. */ padding-right: 0.08em; } .u-mono { font-family: var(--font-mono); font-size: var(--t-xs); letter-spacing: var(--ls-wide); text-transform: uppercase; color: var(--muted); font-weight: 500; } .u-sr { position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px; overflow: hidden; clip-path: inset(50%); white-space: nowrap; border: 0; } /* Skip link — visible only once focused, then pinned top-left. */ .u-skip { position: fixed; top: var(--sp-4); left: var(--sp-4); z-index: 200; padding: 0.7rem 1.1rem; border-radius: var(--r-pill); background: var(--accent); color: #fff; font-weight: 600; transform: translateY(-200%); transition: transform var(--dur) var(--ease-spring); } .u-skip:focus-visible { transform: translateY(0); } /* ------------------------------------------------------------ reduced motion Not a blanket kill: the page must still be usable and still communicate hierarchy. Transforms and long transitions are removed; opacity fades stay, and every scroll-revealed element is forced visible by reveal.js. */ @media (prefers-reduced-motion: reduce) { *, *::before, *::after { animation-duration: 0.01ms !important; animation-iteration-count: 1 !important; transition-duration: 0.01ms !important; scroll-behavior: auto !important; } }