@layer base {
	/* Element reset (Meyer, trimmed to what a LuCI view can emit). */

	/* scroll-margin-top: an anchor jump must clear the sticky bar or it lands underneath it
	 * (WCAG 2.2 SC 2.4.11). The token, never a literal — the bar is 46px. */
	*, *::before, *::after {
		scroll-margin-top: var(--fs-bar-h);
		margin: 0;
		padding: 0;
		border: 0;
		box-sizing: border-box;
	}

	abbr[title], acronym[title] {
		border-bottom: 1px dotted;
		font-weight: inherit;
		cursor: help;
	}

	table {
		border-collapse: collapse;
		border-spacing: 0;
	}

	/* `hidden` is how a VIEW says an element is not there, and the only way available to code that
	 * ships no stylesheet. The UA gives it `display: none` at the weakest possible strength, so any
	 * `display` a theme sets on a class beats it and the element paints anyway: measured here on
	 * `.tr` (table-row), `.td` (table-cell), `ul.nav > li` (block), `.cbi-page-actions` (flex) and
	 * `.ifacebox` (inline-flex).
	 *
	 * The flag is the point, not a workaround for a layer mistake: this must outrank every display
	 * in tokens/base/theme/page at once, including the id-specific ones in the page layer, and it
	 * has to keep doing so for rules not written yet. `until-found` is excluded
	 * because there `display: none` would break the find-in-page reveal the value exists for. */
	[hidden]:not([hidden="until-found"]) { display: none !important; }

	html {
		font-size: 100%;
		height: 100%;
	}

	/* :focus-visible, not :focus — the ring is for the keyboard, and the UA heuristic keeps it off a
	 * mouse click. A 1px dotted outline is near-invisible on a dark panel, and it was the only focus
	 * indicator generic links had. */
	a:focus-visible {
		outline: 2px solid var(--fs-accent);
		outline-offset: 2px;
	}

	sub, sup {
		font-size: 75%;
		line-height: 0;
		position: relative;
		vertical-align: baseline;
	}

	sup {
		top: -.5em;
	}

	sub {
		bottom: -.25em;
	}

	/* font-size: theme/60-inputs.css (the control-typography rule + `option`) — absorbed */
	button,
	input,
	select,
	option,
	textarea {
		margin: 0;
		box-sizing: border-box;
		vertical-align: baseline;
	}

	button,
	input[type="button"],
	input[type="reset"],
	input[type="submit"] {
		cursor: pointer;
		appearance: button;
		word-break: break-all;
	}

	/* disabled-opacity fade: 30-forms.css, same elements + pointer-events/cursor */

	input[type="search"] {
		appearance: textfield;
		/* no box-sizing: content-box — it contradicts the universal border-box above, and the
		 * theme sizes fields by padding, so a search box comes out ~22px too wide */
	}

	input[type="search"]::-webkit-search-decoration {
		appearance: none;
	}

	textarea {
		overflow: auto;
		vertical-align: top;
		font-family: var(--fs-font-mono);
	}

	/* LuCI's .control-group is bootstrap's JOINED input-group: the trailing button pulled back over
	 * the input so their borders coincided, with its left corners squared to match. This theme does
	 * not join controls — every button takes the full token radius from a later layer, so the
	 * squared corners never apply while the pull-back still does and the button's rounded corner
	 * sits on the input's (issue #7). Separate controls with a real gap instead.
	 *
	 * The password reveal is the one group that IS joined, and theme/60-inputs.css builds that seam
	 * itself (one border around the group, `gap: 0`). */
	.control-group {
		display: inline-flex;
		gap: var(--fs-space-2);
	}
}