/* ============================================================
 * Chapter 0 — Opening hero. Full-viewport intro with particle
 * field, eyebrow label, title and scroll invite.
 * ============================================================ */

.chapter-0 {
	height: 100vh;
	display: flex;
	align-items: center;
	justify-content: center;
	position: relative;
	overflow: hidden;
	background: var(--ink);
}

.opening-text {
	text-align: center;
	position: relative;
	z-index: 2;
	padding: 0 2rem;
}

.opening-eyebrow {
	font-size: 0.75rem;
	letter-spacing: 0.25em;
	text-transform: uppercase;
	color: var(--ember);
	opacity: 0;
	animation: fadeIn 1s 0.5s ease forwards;
	margin-bottom: 2rem;
}

.opening-title {
	font-family: 'Cormorant Garamond', Georgia, serif;
	font-size: clamp(4rem, 10vw, 9rem);
	font-weight: 300;
	line-height: 0.95;
	letter-spacing: -0.02em;
	opacity: 0;
	animation: fadeIn 1.2s 0.9s ease forwards;
}
.opening-title strong {
	font-weight: 600;
	font-style: italic;
	color: var(--ember);
	display: block;
}

.opening-subtitle {
	margin-top: 2.5rem;
	font-size: 1.05rem;
	font-weight: 300;
	color: rgba(250, 244, 236, 0.6);
	letter-spacing: 0.03em;
	line-height: 1.8;
	max-width: 480px;
	margin-left: auto;
	margin-right: auto;
	opacity: 0;
	animation: fadeIn 1s 1.5s ease forwards;
}

.scroll-invite {
	position: absolute;
	bottom: 3rem;
	left: 50%;
	transform: translateX(-50%);
	display: flex;
	flex-direction: column;
	align-items: center;
	gap: 0.8rem;
	opacity: 0;
	animation: fadeIn 1s 2.2s ease forwards;
}
.scroll-invite span {
	font-size: 0.7rem;
	letter-spacing: 0.2em;
	text-transform: uppercase;
	color: var(--ash);
}
.scroll-line-v {
	width: 1px;
	height: 60px;
	background: linear-gradient(to bottom, var(--ember), transparent);
	animation: pulse 2s ease-in-out infinite;
}