/**
 * Scroll presentation layout and viewport animations.
 *
 * @package Meuv_Theme
 */

/* Screen reader text utility */
.screen-reader-text {
	border: 0;
	clip: rect(1px, 1px, 1px, 1px);
	clip-path: inset(50%);
	height: 1px;
	margin: -1px;
	overflow: hidden;
	padding: 0;
	position: absolute;
	width: 1px;
	word-wrap: normal !important;
}

.screen-reader-text:focus {
	background-color: var(--wp--preset--color--surface, #fff);
	clip: auto !important;
	clip-path: none;
	color: var(--wp--preset--color--text, #1a1a1a);
	display: block;
	font-size: 0.875rem;
	height: auto;
	left: 0.5rem;
	line-height: normal;
	padding: 0.75rem 1rem;
	top: 0.5rem;
	width: auto;
	z-index: 100000;
}

.skip-link:focus,
.presentation__skip-link:focus {
	outline: 2px solid var(--wp--preset--color--secondary, #c45c26);
	outline-offset: 2px;
}

/* Site shell (classic templates) */
.site-header {
	background: var(--wp--preset--color--surface, #fff);
	border-bottom: 1px solid var(--wp--preset--color--background-alt, #f0f4f3);
	padding: 0.75rem 1rem;
	position: sticky;
	top: 0;
	z-index: 20;
}

.site-header__inner {
	align-items: center;
	display: flex;
	flex-wrap: wrap;
	gap: 1rem;
	justify-content: space-between;
	margin-inline: auto;
	max-width: var(--wp--style--global--wide-size, 72rem);
}

.site-title {
	font-size: 1rem;
	font-weight: 700;
	margin: 0;
}

.site-title a {
	color: inherit;
	text-decoration: none;
}

.site-navigation__menu {
	display: flex;
	flex-wrap: wrap;
	gap: 0.75rem 1.25rem;
	list-style: none;
	margin: 0;
	padding: 0;
}

.site-footer {
	background: var(--wp--preset--color--background-alt, #f0f4f3);
	padding: 1.5rem 1rem;
}

.site-footer__inner {
	margin-inline: auto;
	max-width: var(--wp--style--global--wide-size, 72rem);
}

.site-footer__credit {
	font-size: 0.875rem;
	margin: 0;
}

/* Presentation container */
.presentation {
	position: relative;
}

.presentation__skip-link {
	left: 0.5rem;
	position: absolute;
	top: 0.5rem;
	z-index: 30;
}

.presentation__nav {
	inset-block-start: 50%;
	inset-inline-end: 0.75rem;
	position: fixed;
	transform: translateY(-50%);
	z-index: 15;
}

.presentation__nav-list {
	display: flex;
	flex-direction: column;
	gap: 0.5rem;
	list-style: none;
	margin: 0;
	padding: 0;
}

.presentation__nav-link {
	align-items: center;
	display: flex;
	justify-content: center;
	min-height: 2.75rem;
	min-width: 2.75rem;
	text-decoration: none;
}

.presentation__nav-dot {
	background: var(--wp--preset--color--text-muted, #3d4548);
	border-radius: 50%;
	display: block;
	height: 0.625rem;
	opacity: 0.45;
	transition: opacity 0.2s ease, transform 0.2s ease;
	width: 0.625rem;
}

.presentation__nav-link:hover .presentation__nav-dot,
.presentation__nav-link:focus-visible .presentation__nav-dot {
	opacity: 1;
	outline: none;
	transform: scale(1.2);
}

.presentation__nav-link:focus-visible {
	outline: 2px solid var(--wp--preset--color--secondary, #c45c26);
	outline-offset: 4px;
}

/* Full-viewport slides */
.presentation-slide {
	align-items: center;
	display: flex;
	justify-content: center;
	min-height: 100vh;
	min-height: 100dvh;
	overflow: hidden;
	padding: clamp(2rem, 6vw, 4rem) clamp(1rem, 5vw, 3rem);
	position: relative;
	scroll-margin-top: 4rem;
}

.presentation-slide:nth-child(odd) {
	background: var(--wp--preset--color--background, #fafaf8);
}

.presentation-slide:nth-child(even) {
	background: var(--wp--preset--color--background-alt, #f0f4f3);
}

.presentation-slide--dark {
	background: var(--wp--preset--color--primary, #0b3d4a);
	color: var(--wp--preset--color--surface, #fff);
}

.presentation-slide--accent {
	background: var(--wp--preset--color--secondary, #c45c26);
	color: var(--wp--preset--color--surface, #fff);
}

.presentation-slide__media {
	inset: 0;
	position: absolute;
	z-index: 0;
}

.presentation-slide__media::after {
	background: linear-gradient(
		to bottom,
		rgb(0 0 0 / 35%),
		rgb(0 0 0 / 55%)
	);
	content: "";
	inset: 0;
	position: absolute;
}

.presentation-slide__image {
	height: 100%;
	object-fit: cover;
	width: 100%;
}

.presentation-slide__inner {
	margin-inline: auto;
	max-width: var(--wp--style--global--content-size, 38rem);
	position: relative;
	text-align: center;
	width: 100%;
	z-index: 1;
}

.presentation-slide--has-media .presentation-slide__inner {
	color: var(--wp--preset--color--surface, #fff);
}

.presentation-slide__title {
	font-size: clamp(1.75rem, 5vw, 2.75rem);
	line-height: 1.15;
	margin: 0 0 1rem;
}

.presentation-slide__content {
	font-size: clamp(1rem, 2.5vw, 1.25rem);
	line-height: 1.6;
}

.presentation-slide__content > :last-child {
	margin-bottom: 0;
}

/* Animated children — hidden until slide enters view */
.presentation-slide__animate {
	opacity: 0;
	transition:
		opacity 0.6s ease var(--presentation-stagger, 0ms),
		transform 0.6s ease var(--presentation-stagger, 0ms);
}

.presentation-slide[data-animation-type="fade"] .presentation-slide__animate {
	transform: none;
}

.presentation-slide[data-animation-type="slide-up"] .presentation-slide__animate {
	transform: translateY(1.5rem);
}

.presentation-slide[data-animation-type="slide-left"] .presentation-slide__animate {
	transform: translateX(-1.5rem);
}

.presentation-slide[data-animation-type="slide-right"] .presentation-slide__animate {
	transform: translateX(1.5rem);
}

.presentation-slide[data-animation-type="zoom"] .presentation-slide__animate {
	transform: scale(0.96);
}

.presentation-slide[data-animation-type="none"] .presentation-slide__animate {
	opacity: 1;
	transform: none;
	transition: none;
}

.presentation-slide.is-in-view .presentation-slide__animate,
.presentation-slide[data-animation-type="none"] .presentation-slide__animate {
	opacity: 1;
	transform: none;
}

.presentation--empty {
	padding: 4rem 1rem;
	text-align: center;
}

.presentation__end {
	height: 0;
}

/* Smooth scroll only when motion is allowed */
@media (prefers-reduced-motion: no-preference) {
	html:has([data-presentation]) {
		scroll-behavior: smooth;
	}
}

/* WCAG: respect reduced motion — show content immediately, no transforms */
@media (prefers-reduced-motion: reduce) {
	.presentation-slide__animate {
		opacity: 1 !important;
		transform: none !important;
		transition: none !important;
	}

	.presentation__nav-dot {
		transition: none;
	}

	html:has([data-presentation]) {
		scroll-behavior: auto;
	}
}