/**
 * SMH Theme — base styles: reset, typography, links, focus, a11y basics.
 */

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

html {
	min-height: 100%;
	background-color: var(--color-bg);
	-webkit-text-size-adjust: 100%;
}

body {
	margin: 0;
	min-height: 100%;
	background-color: var(--color-bg);
	color: var(--color-text);
	font-family: var(--font-family);
	font-size: var(--fs-base);
	line-height: var(--line-height-base);
	transition: background-color var(--transition-base), color var(--transition-base);
}

[dir='rtl'] body {
	font-family: var(--font-family-rtl);
}

img,
picture,
video,
svg {
	max-width: 100%;
	height: auto;
}

h1,
h2,
h3,
h4,
h5,
h6 {
	margin: 0 0 var(--space-3);
	color: var(--color-text);
	line-height: var(--line-height-tight);
	font-weight: 700;
	text-wrap: balance;
}

h1 { font-size: var(--fs-2xl); }
h2 { font-size: var(--fs-xl); }
h3 { font-size: var(--fs-lg); }
h4 { font-size: var(--fs-md); }

p {
	margin: 0 0 var(--space-4);
}

ul,
ol {
	margin: 0 0 var(--space-4);
	padding-inline-start: var(--space-5);
}

a {
	color: var(--color-primary);
	text-decoration: none;
	transition: color var(--transition-fast);
}

a:hover,
a:focus {
	color: var(--color-primary-hover);
}

button {
	font-family: inherit;
	font-size: inherit;
	line-height: inherit;
	color: inherit;
	background: none;
	border: 0;
	padding: 0;
	cursor: pointer;
	-webkit-tap-highlight-color: transparent;
}

input,
select,
textarea {
	font-family: inherit;
	font-size: var(--fs-base);
	color: var(--color-text);
}

::selection {
	background: rgba(var(--color-primary-rgb), 0.25);
}

/* Visible focus everywhere (SPEC §21). */
:focus-visible {
	outline: none;
	box-shadow: 0 0 0 0.25rem var(--color-focus-ring);
	border-radius: var(--radius-sm);
}

/* The `hidden` attribute must always win over display rules. */
[hidden] {
	display: none !important;
}

/* Skip link */
.smh-skip-link {
	position: absolute;
	inset-block-start: var(--space-2);
	inset-inline-start: var(--space-2);
	z-index: 2000;
	padding: var(--space-2) var(--space-4);
	background: var(--color-surface);
	color: var(--color-text);
	border: 1px solid var(--color-border-strong);
	border-radius: var(--radius-md);
	transform: translateY(-300%);
	transition: transform var(--transition-fast);
}

.smh-skip-link:focus {
	transform: translateY(0);
}

/* Theme toggle icons — show only the icon matching the current mode. */
.smh-theme-icon--sun { display: none; }
.smh-theme-icon--moon { display: inline-block; }

[data-theme='dark'] .smh-theme-icon--sun { display: inline-block; }
[data-theme='dark'] .smh-theme-icon--moon { display: none; }

/* Scrollbars */
* {
	scrollbar-width: thin;
	scrollbar-color: var(--color-border-strong) transparent;
}

/* Reduced motion */
@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;
	}
}