/**
 * Base element styles + reset. Loaded after tokens.
 */

*,
*::before,
*::after {
	box-sizing: border-box;
}

html {
	-webkit-text-size-adjust: 100%;
	scroll-behavior: smooth;
}

@media (prefers-reduced-motion: reduce) {
	html {
		scroll-behavior: auto;
	}
	*,
	*::before,
	*::after {
		animation-duration: 1ms !important;
		animation-iteration-count: 1 !important;
		transition-duration: 1ms !important;
		scroll-behavior: auto !important;
	}
}

body {
	margin: 0;
	background: var(--color-canvas);
	color: var(--color-ink);
	font-family: var(--font-body);
	font-size: var(--text-body-md);
	line-height: var(--leading-normal);
	-webkit-font-smoothing: antialiased;
	overflow-x: hidden;
}

img,
video,
svg {
	max-width: 100%;
	display: block;
}

img {
	height: auto;
}

h1,
h2,
h3,
h4 {
	font-family: var(--font-display);
	font-weight: var(--weight-semibold);
	line-height: var(--leading-tight);
	letter-spacing: var(--tracking-tight);
	margin: 0 0 var(--space-sm);
	color: var(--color-ink);
}

h1 {
	font-size: var(--text-display-xl);
}

h2 {
	font-size: var(--text-display-lg);
}

h3 {
	font-size: var(--text-display-md);
}

h4 {
	font-size: var(--text-display-sm);
}

p {
	margin: 0 0 var(--space-sm);
	max-width: var(--measure-content);
}

a {
	color: inherit;
	text-decoration: none;
}

ul,
ol {
	margin: 0;
	padding: 0;
	list-style: none;
}

button {
	font: inherit;
	color: inherit;
	background: none;
	border: 0;
	cursor: pointer;
}

input,
textarea,
select {
	font: inherit;
	color: inherit;
}

:focus-visible {
	outline: 3px solid var(--color-focus-ring);
	outline-offset: 3px;
}

/* Screen-reader only utility */
.sr-only {
	position: absolute;
	width: 1px;
	height: 1px;
	padding: 0;
	margin: -1px;
	overflow: hidden;
	clip: rect(0, 0, 0, 0);
	white-space: nowrap;
	border: 0;
}

.skip-link {
	position: fixed;
	top: -100px;
	left: var(--space-sm);
	z-index: var(--z-skip-link);
	background: var(--color-primary);
	color: var(--color-primary-ink);
	padding: var(--space-xs) var(--space-md);
	border-radius: var(--radius-sm);
	transition: top var(--motion-fast) var(--ease-standard);
}

.skip-link:focus {
	top: var(--space-sm);
}

/* Dark section baseline — used by .section--dark and emergency/imaging modes */
.section--dark,
[data-theme-mode="ambulance"] body,
[data-theme-mode="emergency"] body,
[data-theme-mode="radiology"] body {
	background: var(--color-dark-canvas);
	color: var(--color-dark-ink);
}