:root {
	--bg: #0b0c10;
	--text: #e6e6eb;
	--muted: #b7b7c2;
	--accent: #8ab4ff;
	--border: #26283a;
}
@media (prefers-color-scheme: light) {
	:root {
		--bg: #f6f7fb;
		--text: #13141a;
		--muted: #4a4e69;
		--accent: #336dff;
		--border: #e8eaf3;
	}
}
:root[data-theme="light"] {
	--bg: #f6f7fb;
	--text: #13141a;
	--muted: #4a4e69;
	--accent: #336dff;
	--border: #e8eaf3;
}
:root[data-theme="dark"] {
	--bg: #0b0c10;
	--text: #e6e6eb;
	--muted: #b7b7c2;
	--accent: #8ab4ff;
	--border: #26283a;
}

* {
	box-sizing: border-box;
}
html,
body {
	height: 100%;
}
body {
	margin: 0;
	font-family: ui-sans-serif, system-ui, -apple-system, Segoe UI, Roboto, Ubuntu,
		Cantarell, Noto Sans, Helvetica Neue, Arial, "Apple Color Emoji",
		"Segoe UI Emoji";
	color: var(--text);
	line-height: 1.6;
}

.container {
	width: min(900px, 92%);
	margin-inline: auto;
}
.page {
	padding: 0;
}

/* One fixed background layer to prevent seams */
.bg-layer {
	position: fixed;
	inset: 0;
	z-index: 0;
	pointer-events: none;
	background: radial-gradient(
			1200px 800px at 10% -10%,
			rgba(131, 97, 255, 0.18),
			transparent 40%
		),
		radial-gradient(
			800px 600px at 110% 10%,
			rgba(51, 109, 255, 0.15),
			transparent 40%
		),
		var(--bg);
}
/* Lift main content above the background */
main {
	position: relative;
	z-index: 1;
}

/* Sticky overlapping steps; animate children (not container) to avoid seams */
.step {
	min-height: 100svh;
	position: sticky;
	top: 0;
	display: grid;
	place-content: center;
	padding-block: clamp(16px, 6vh, 60px);
	--p: 0; /* 0..1, set by JS */
	z-index: var(--z, 0);
}
/* Apply the fade/slide to content only */
.step {
	background: transparent;
}
.step > * {
	opacity: var(--p);
	transform: translate3d(0, calc((1 - var(--p)) * 16px), 0);
	will-change: opacity, transform;
	backface-visibility: hidden;
}
/* Disable interaction when fully hidden */
.step[style*="--p: 0"] > * {
	pointer-events: none;
}

.hero {
	font-size: clamp(2rem, 6vw, 4rem);
	line-height: 1.1;
	margin: 0.3em 0 0.2em;
}
.lead {
	font-size: clamp(1.1rem, 2.6vw, 1.4rem);
	color: var(--muted);
}
.section-title {
	margin-top: 1.6em;
	font-size: clamp(1.3rem, 3.2vw, 2rem);
}
.big-list {
	font-size: clamp(1.05rem, 2.2vw, 1.25rem);
	padding-left: 1.1em;
}
.big-list li {
	margin: 10px 0;
}
.disclaimer {
	margin: 10px 0 18px;
	padding: 10px 12px;
	border: 1px dashed var(--border);
	border-radius: 12px;
	background: color-mix(in oklab, var(--bg) 92%, var(--accent) 8%);
}
.fineprint {
	color: var(--muted);
	margin-top: 2rem;
	font-size: 0.95rem;
}

/* Legacy reveal styles kept for fallback cases */
.reveal {
	opacity: 0;
	transform: translateY(16px) scale(0.995);
	filter: blur(2px);
	transition: opacity 520ms ease, transform 520ms ease, filter 520ms ease;
}
.reveal.in-view {
	opacity: 1;
	transform: translateY(0) scale(1);
	filter: none;
}
@media (prefers-reduced-motion: reduce) {
	.reveal {
		opacity: 1;
		transform: none;
		filter: none;
		transition: none;
	}
}