/* Full screen buttons: js/fullscreen.js unhides them only where full screen is allowed. */
.fs-btn { display: inline-flex; align-items: center; gap: 0.5em; }
.fs-btn[hidden] { display: none; }
.fs-btn svg { width: 1.15em; height: 1.15em; flex: none; fill: none; stroke: currentColor; stroke-width: 2.2; stroke-linecap: round; stroke-linejoin: round; }
.fs-btn .fs-on, body.is-fullscreen .fs-btn .fs-off { display: none; }
body.is-fullscreen .fs-btn .fs-on { display: inline; }