/*
 * Homepage hero — "Startup Neon - Hero (Parallax)"
 * tmpl-startup-neon--hero--parallax--42
 *
 * Full-bleed, max-w-5xl container, 1 column, min-height 90vh.
 * Mobile: scroll-snap carousel · Tablet: 2-col · Desktop: centered single column.
 * All colour/spacing/typography values come from assets/css/design-tokens.css.
 */

/* ---------- base typography for the homepage (tokens only) ---------- */
body {
	margin: 0;
	background: var(--color-bg);
	color: var(--color-text);
	font-family: var(--font-body);
	font-size: var(--text-base);
	line-height: var(--leading-normal);
}

#masthead {
	display: flex;
	flex-wrap: wrap;
	align-items: center;
	justify-content: space-between;
	gap: var(--space-4);
	max-width: var(--container-max);
	margin: 0 auto;
	padding: var(--space-4) var(--container-padding);
}

#masthead h1 {
	margin: 0;
	font-family: var(--font-heading);
	font-size: var(--text-lg);
	letter-spacing: var(--letter-tight);
}

#masthead h1 a {
	color: var(--color-primary-700);
	text-decoration: none;
}

#masthead nav ul {
	display: flex;
	flex-wrap: wrap;
	gap: var(--space-6);
	margin: 0;
	padding: 0;
	list-style: none;
}

#masthead nav a {
	color: var(--color-text-muted);
	font-size: var(--text-sm);
	text-decoration: none;
	transition: color var(--duration-fast) var(--ease-default);
}

#masthead nav a:hover,
#masthead nav a:focus-visible {
	color: var(--color-primary-600);
}

/* ---------- hero shell: full-bleed band ---------- */
.amber-hero-sn42 {
	position: relative;
	display: flex;
	align-items: center;
	width: 100%;
	min-height: 90vh;
	padding: var(--space-section) 0;
	overflow: hidden;
	background-color: var(--color-bg-dark);
	border-radius: var(--radius-lg);
	box-shadow: var(--shadow-md);
	isolation: isolate;
}

/* Parallax background photo (slot: background_image) + noise texture. */
.amber-hero-sn42__media {
	position: absolute;
	inset: 0;
	z-index: -3;
	background-color: var(--color-primary-900);
	background-image: var(--amber-hero-sn42-image, none);
	background-position: center;
	background-size: cover;
	background-repeat: no-repeat;
	background-attachment: fixed; /* parallax */
}

/* dark-gradient overlay keeps the headline legible over the photo */
.amber-hero-sn42__overlay {
	position: absolute;
	inset: 0;
	z-index: -2;
	background-image:
		linear-gradient(
			180deg,
			rgba(26, 31, 38, 0.82) 0%,
			rgba(33, 42, 56, 0.72) 45%,
			rgba(33, 42, 56, 0.9) 100%
		),
		/* noise-texture */
		url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='160' height='160'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.85' numOctaves='3' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='160' height='160' filter='url(%23n)' opacity='0.5'/%3E%3C/svg%3E");
	background-size: cover, 160px 160px;
	background-blend-mode: normal, soft-light;
}

/* decorative: blob-bottom-left */
.amber-hero-sn42__blob {
	position: absolute;
	bottom: -14vw;
	left: -12vw;
	z-index: -1;
	width: 42vw;
	height: 42vw;
	max-width: 620px;
	max-height: 620px;
	background: radial-gradient(
		circle at 35% 35%,
		rgba(16, 185, 129, 0.38) 0%,
		rgba(71, 87, 113, 0.18) 55%,
		rgba(33, 42, 56, 0) 72%
	);
	border-radius: var(--radius-full);
	pointer-events: none;
}

/* ---------- container: max-w-5xl, 1 column, centered ---------- */
.amber-hero-sn42__container {
	width: 100%;
	max-width: 1024px; /* max-w-5xl */
	margin: 0 auto;
	padding: 0 var(--container-padding);
}

.amber-hero-sn42__track {
	display: grid;
	grid-template-columns: 1fr;
	gap: var(--space-10);
}

.amber-hero-sn42__copy {
	text-align: center;
}

/* ---------- content: eyebrow → heading → subheading → cta_group ---------- */
.amber-hero-sn42__eyebrow {
	margin: 0 0 var(--space-5);
	color: var(--color-accent-300);
	font-family: var(--font-body);
	font-size: var(--text-sm);
	font-weight: 500;
	letter-spacing: var(--letter-wide);
	text-transform: uppercase;
}

.amber-hero-sn42__heading {
	margin: 0 0 var(--space-5);
	color: var(--color-text-on-dark);
	font-family: var(--font-heading);
	font-size: clamp(2.6rem, 6.5vw, 3.8rem); /* 5xl */
	font-weight: 400;
	letter-spacing: 0.02em;
	line-height: var(--leading-tight);
}

.amber-hero-sn42__subheading {
	max-width: var(--measure);
	margin: 0 auto var(--space-8);
	color: var(--color-text-muted-on-dark);
	font-family: var(--font-body);
	font-size: var(--text-xl);
	font-weight: 400;
	line-height: 1.45;
}

.amber-hero-sn42__cta-group {
	display: flex;
	flex-wrap: wrap;
	gap: var(--space-4);
	justify-content: center;
}

.amber-hero-sn42__btn {
	display: inline-flex;
	align-items: center;
	justify-content: center;
	min-height: 44px;
	padding: 0 var(--space-6);
	border: 1px solid transparent;
	border-radius: var(--radius-md);
	font-family: var(--font-body);
	font-size: var(--text-base);
	font-weight: 500;
	text-decoration: none;
	/* CTA hover: none (no transform / no lift) — colour only, for accessibility */
	transition: background-color var(--duration-fast) var(--ease-default),
		color var(--duration-fast) var(--ease-default),
		border-color var(--duration-fast) var(--ease-default);
}

.amber-hero-sn42__btn--primary {
	background-color: var(--color-accent-500);
	color: var(--color-neutral-900);
}

.amber-hero-sn42__btn--primary:hover,
.amber-hero-sn42__btn--primary:focus-visible {
	background-color: var(--color-accent-400);
}

.amber-hero-sn42__btn--secondary {
	background-color: transparent;
	border-color: var(--color-primary-200);
	color: var(--color-text-on-dark);
}

.amber-hero-sn42__btn--secondary:hover,
.amber-hero-sn42__btn--secondary:focus-visible {
	border-color: var(--color-text-on-dark);
	color: var(--color-accent-300);
}

.amber-hero-sn42__btn:focus-visible {
	outline: 2px solid var(--color-accent-500);
	outline-offset: 2px;
}

/* ---------- photo card (tablet/mobile panel) ---------- */
.amber-hero-sn42__card {
	display: none;
	overflow: hidden;
	background-color: var(--color-surface-dark);
	border: 1px solid rgba(247, 248, 250, 0.14);
	border-radius: var(--radius-lg);
	box-shadow: var(--shadow-md);
	/* card hover: color-shift */
	transition: background-color var(--duration-normal) var(--ease-default),
		border-color var(--duration-normal) var(--ease-default);
}

.amber-hero-sn42__card:hover,
.amber-hero-sn42__card:focus-within {
	background-color: var(--color-primary-700);
	border-color: var(--color-accent-500);
}

.amber-hero-sn42__photo {
	display: block;
	width: 100%;
	height: auto;
	aspect-ratio: 4 / 3;
	object-fit: cover;
}

.amber-hero-sn42__card-caption {
	margin: 0;
	padding: var(--space-4) var(--space-5);
	color: var(--color-text-muted-on-dark);
	font-size: var(--text-sm);
	text-align: center;
}

/* ---------- Tablet: 2-col ---------- */
@media (min-width: 768px) {
	.amber-hero-sn42__track {
		grid-template-columns: 1fr 1fr;
		align-items: center;
	}

	.amber-hero-sn42__copy {
		text-align: center;
	}

	.amber-hero-sn42__card {
		display: block;
	}
}

/* ---------- Desktop: single centered column, photo stays as background ---------- */
@media (min-width: 1024px) {
	.amber-hero-sn42__track {
		grid-template-columns: 1fr;
	}

	.amber-hero-sn42__card {
		display: none;
	}
}

/* ---------- Mobile: CSS scroll-snap carousel (copy + photo panels) ---------- */
@media (max-width: 767px) {
	.amber-hero-sn42 {
		border-radius: var(--radius-none);
	}

	.amber-hero-sn42__track {
		display: flex;
		gap: var(--space-5);
		margin: 0 calc(var(--container-padding) * -1);
		padding: 0 var(--container-padding) var(--space-4);
		overflow-x: auto;
		scroll-snap-type: x mandatory;
		-webkit-overflow-scrolling: touch;
		scrollbar-width: none;
	}

	.amber-hero-sn42__track::-webkit-scrollbar {
		display: none;
	}

	.amber-hero-sn42__panel {
		flex: 0 0 100%;
		scroll-snap-align: center;
	}

	.amber-hero-sn42__card {
		display: block;
	}

	.amber-hero-sn42__media {
		background-attachment: scroll; /* iOS does not support fixed backgrounds */
	}
}

/* ---------- Motion / entrance: none, and nothing animates under reduce ---------- */
@media (prefers-reduced-motion: reduce) {
	.amber-hero-sn42__media {
		background-attachment: scroll;
	}

	.amber-hero-sn42 *,
	.amber-hero-sn42 *::before,
	.amber-hero-sn42 *::after {
		transition-duration: 0ms !important;
	}
}