:root {
	--theme-transition: 420ms;
	--theme-ease: cubic-bezier(0.22, 1, 0.36, 1);
	--asset-fade-duration: 180ms;
	--nav-height: 5.5rem;

	/* Dark mode palette from COLORING.md */
	--brand-primary: #78d6ff;
	--brand-primary-rgb: 120, 214, 255;
	--brand-primary-variant: #35c4ff;
	--brand-primary-variant-rgb: 53, 196, 255;
	--brand-primary-dark: #0b2540;
	--brand-primary-dark-rgb: 11, 37, 64;
	--accent-primary: #ffa642;
	--accent-primary-rgb: 255, 166, 66;
	--accent-analytic: #ff82b3;
	--accent-analytic-rgb: 255, 130, 179;
	--accent-performance: #8b82ff;
	--accent-performance-rgb: 139, 130, 255;
	--semantic-success: #5ce09a;
	--semantic-success-rgb: 92, 224, 154;
	--semantic-error: #ff517c;
	--semantic-error-rgb: 255, 81, 124;
	--background-base: #050e1a;
	--background-base-rgb: 5, 14, 26;
	--light-white: #fbfbfc;
	--darker-white: #c0d6e4;

	/* Usage-safe surfaces and text. */
	--bg-deep: #1a3b5a;
	--text: #ffffff;
	--muted: #5ea9d4;
	--hero-gradient-end: #16314c;
	--text-primary: #ffffff;
	--text-secondary: #c0d6e4;
	--panel: rgba(var(--background-base-rgb), 0.82);
	--line: rgba(var(--brand-primary-variant-rgb), 0.24);
	--shadow: 0 18px 44px rgba(var(--brand-primary-dark-rgb), 0.18);
}

body.theme-dark {
	/* Colors already defined in :root for dark mode */
}

* {
	box-sizing: border-box;
}

html,
body {
	margin: 0;
	padding: 0;
}

body {
	font-family: "Space Grotesk", "Avenir Next", sans-serif;
	color: var(--text);
	background: var(--background-base);
	min-height: 100vh;
	transition: background var(--theme-transition) var(--theme-ease), color var(--theme-transition) var(--theme-ease);
	overflow-x: hidden;
}

body::before,
body::after {
	content: "";
	position: fixed;
	inset: 0;
	pointer-events: none;
	z-index: -3;
}

body::before {
	background:
		radial-gradient(circle at 80% 8%, rgba(120, 214, 255, 0.35), transparent 38%),
		radial-gradient(circle at 12% 92%, rgba(255, 166, 66, 0.22), transparent 42%),
		linear-gradient(180deg, #050e1a, var(--hero-gradient-end));
}

body::after {
	background:
		radial-gradient(circle at 80% 8%, rgba(120, 214, 255, 0.35), transparent 38%),
		radial-gradient(circle at 12% 92%, rgba(255, 166, 66, 0.22), transparent 42%),
		linear-gradient(180deg, #050e1a, var(--hero-gradient-end));
	opacity: 0;
}

@supports (color: color-mix(in srgb, #000 50%, #fff)) {
	:root {
		--bg-deep: color-mix(in srgb, var(--background-base) 82%, var(--brand-primary) 18%);
		--muted: color-mix(in srgb, var(--brand-primary-variant) 74%, var(--brand-primary-dark) 26%);
		--hero-gradient-end: color-mix(in srgb, #050e1a 78%, #78d6ff 22%);
	}
}

body.theme-dark::before {
	opacity: 0;
}

body.theme-dark::after {
	opacity: 1;
}

.aurora,
.grid-overlay,
.hero-kicker,
.hero-subtitle,
.btn-primary,
.btn,
.brand-wordmark {
	transition:
		color var(--theme-transition) var(--theme-ease),
		background-color var(--theme-transition) var(--theme-ease),
		border-color var(--theme-transition) var(--theme-ease),
		box-shadow var(--theme-transition) var(--theme-ease),
		opacity 620ms var(--theme-ease),
		filter var(--theme-transition) var(--theme-ease);
}

.aurora,
.grid-overlay {
	position: fixed;
	inset: 0;
	pointer-events: none;
	z-index: -1;
}

.aurora {
	background: conic-gradient(
		from 120deg at 50% 50%,
		rgba(var(--brand-primary-variant-rgb), 0.2),
		rgba(var(--accent-analytic-rgb), 0.16),
		rgba(var(--accent-primary-rgb), 0.14),
		rgba(var(--brand-primary-rgb), 0.2)
	);
	filter: blur(90px);
	animation: drift 16s linear infinite;
}

.grid-overlay {
	background-image: linear-gradient(var(--line) 1px, transparent 1px), linear-gradient(90deg, var(--line) 1px, transparent 1px);
	background-size: 34px 34px;
	background-position: center top;
	opacity: 0.35;
}

main {
	width: min(900px, calc(100% - 2rem));
	margin: 0 auto;
	padding-bottom: 2rem;
}

.placeholder-page {
	min-height: 100vh;
	display: flex;
	flex-direction: column;
	align-items: center;
	justify-content: center;
	text-align: center;
	padding: 7.5rem 1rem 3rem;
	gap: 0.75rem;
}

.placeholder-page h1 {
	margin: 0;
	font-family: "Bebas Neue", "Impact", sans-serif;
	font-size: clamp(2.8rem, 8vw, 5rem);
	letter-spacing: 0.04em;
	color: var(--text-primary);
}

.placeholder-page p {
	margin: 0;
	color: var(--text-secondary);
	font-size: clamp(1rem, 2vw, 1.15rem);
}

.content-page {
	min-height: 100vh;
	padding: 7.5rem 0 3rem;
	display: grid;
	gap: 1.5rem;
}

.content-intro {
	max-width: 760px;
	margin: 0 auto;
	text-align: center;
	display: grid;
	gap: 0.85rem;
}

.intro-copy {
	display: grid;
	gap: 0.85rem;
}

.content-eyebrow,
.content-label {
	margin: 0;
	font-family: "Bebas Neue", "Impact", sans-serif;
	font-size: 1.55rem;
	letter-spacing: 0.12em;
	text-transform: uppercase;
	color: var(--brand-primary-variant);
}

.content-intro h1 {
	margin: 0;
	font-family: "Bebas Neue", "Impact", sans-serif;
	font-size: clamp(2.4rem, 6vw, 4.75rem);
	line-height: 0.98;
	letter-spacing: 0.04em;
	color: var(--text-primary);
}

.content-lead {
	margin: 0;
	font-size: clamp(1.05rem, 2vw, 1.25rem);
	line-height: 1.7;
	color: var(--text-secondary);
}

.content-section {
	max-width: 760px;
	margin: 0 auto;
	padding-top: 0.5rem;
	display: grid;
	gap: 0.95rem;
	line-height: 1.72;
	border-top: 1px solid var(--line);
	padding-top: 1.25rem;
}

.waitlist-section {
	padding: 2.5rem;
	background: rgba(var(--brand-primary-dark-rgb), 0.3);
	border-radius: 20px;
	border: 1px solid var(--brand-primary-variant);
	margin-bottom: 2rem;
}

.waitlist-section h2 {
	font-size: clamp(2.2rem, 5vw, 3.2rem);
}

#waitlistForm {
	display: flex;
	gap: 0.75rem;
	margin-top: 1rem;
}

.waitlist-input {
	flex: 1;
	background: rgba(var(--background-base-rgb), 0.6);
	border: 1px solid var(--line);
	color: var(--text-primary);
	padding: 0.75rem 1.25rem;
	border-radius: 999px;
	font-size: 1rem;
	outline: none;
	transition: border-color var(--theme-transition) var(--theme-ease);
}

.waitlist-input:focus {
	border-color: var(--brand-primary-variant);
}

@media (max-width: 640px) {
	#waitlistForm {
		flex-direction: column;
	}
}


.content-section h2 {
	margin: 0;
	font-family: "Bebas Neue", "Impact", sans-serif;
	font-size: clamp(1.9rem, 4vw, 2.7rem);
	letter-spacing: 0.04em;
	color: var(--text-primary);
}

.content-section p {
	margin: 0;
	color: var(--text-secondary);
	font-size: 1rem;
}

.content-link {
	color: var(--brand-primary-variant);
	font-weight: 700;
	text-decoration: none;
}

.content-link:hover {
	color: var(--brand-primary);
}

.back-link {
	color: var(--brand-primary-variant);
	text-decoration: none;
	font-weight: 600;
	transition: color 180ms ease;
}

.back-link:hover {
	color: var(--brand-primary);
}

.site-footer {
	width: min(900px, calc(100% - 2rem));
	margin: 0 auto;
	padding: 0.5rem 0 2.5rem;
	border-top: 1px solid var(--line);
}

.site-footer p {
	margin: 0;
	text-align: center;
	color: var(--text-secondary);
	line-height: 1.7;
}

.site-footer .footer-privacy-link {
	margin-top: 0.25rem;
}

.content-section ul {
	margin: 0;
	padding-left: 1.35rem;
	color: var(--text-secondary);
}

.content-section li + li {
	margin-top: 0.55rem;
}

.content-meta {
	margin: 0;
	color: var(--text-secondary);
	font-size: 0.95rem;
}

/* ─── Top navigation bar ───────────────────────────────────────────────────── */

.site-nav {
	position: fixed;
	top: 0;
	left: 0;
	right: 0;
	height: var(--nav-height);
	z-index: 20;
	display: flex;
	align-items: center;
	gap: 0.75rem;
	padding: 0 2rem;
	background: var(--brand-primary-dark);
	border-bottom: 1px solid rgba(var(--brand-primary-rgb), 0.18);
}

.nav-logo {
	display: flex;
	align-items: center;
	flex-shrink: 0;
	text-decoration: none;
}

.nav-logo img {
	display: block;
	height: 48px;
	width: auto;
	border-radius: 8px;
}

.nav-links {
	display: flex;
	list-style: none;
	margin: 0;
	padding: 0;
	gap: 0.4rem;
}

.nav-link {
	display: inline-block;
	padding: 0.55rem 1.2rem;
	border-radius: 999px;
	font-weight: 600;
	font-size: 1rem;
	text-decoration: none;
	color: var(--brand-primary);
	transition:
		background-color 180ms ease,
		color 180ms ease;
}

.nav-link:hover,
.nav-link[aria-current="page"] {
	background: rgba(var(--brand-primary-rgb), 0.18);
	color: var(--light-white);
}

/* ─── Mobile menu button ────────────────────────────────────────────────────── */

.nav-menu-btn {
	display: none;
	align-items: center;
	justify-content: center;
	width: 44px;
	height: 44px;
	padding: 0;
	background: none;
	border: none;
	border-radius: 8px;
	cursor: pointer;
	color: var(--brand-primary);
	flex-shrink: 0;
	margin-left: auto;
	transition: background-color 180ms ease;
}

.nav-menu-btn:hover {
	background: rgba(var(--brand-primary-rgb), 0.12);
}

.nav-menu-icon,
.nav-menu-icon::before,
.nav-menu-icon::after {
	display: block;
	width: 22px;
	height: 2px;
	background: currentColor;
	border-radius: 2px;
	transition: transform 240ms ease, opacity 180ms ease;
}

.nav-menu-icon {
	position: relative;
}

.nav-menu-icon::before,
.nav-menu-icon::after {
	content: "";
	position: absolute;
	left: 0;
}

.nav-menu-icon::before { top: -7px; }
.nav-menu-icon::after  { top: 7px; }

.site-nav.nav-open .nav-menu-icon {
	background: transparent;
}

.site-nav.nav-open .nav-menu-icon::before {
	transform: translateY(7px) rotate(45deg);
}

.site-nav.nav-open .nav-menu-icon::after {
	transform: translateY(-7px) rotate(-45deg);
}

.hero-center {
	display: flex;
	flex-direction: column;
	align-items: center;
	justify-content: flex-start;
	text-align: center;
	margin-top: var(--nav-height);
	height: calc(100svh - var(--nav-height));
	min-height: calc(100dvh - var(--nav-height));
	padding: 0;
	gap: 0.9rem;
}

.hero-center::before,
.hero-center::after {
	content: "";
	display: block;
	width: 100%;
	flex-basis: 0;
	flex-shrink: 1;
	min-height: 0;
}

.hero-center::before {
	flex-grow: 45;
}

.hero-center::after {
	flex-grow: 55;
}

.logo-core {
	width: clamp(170px, 24vw, 280px);
	height: clamp(170px, 24vw, 280px);
	border-radius: 26%;
	display: grid;
	place-items: center;
	background: transparent;
	box-shadow: none;
	animation: pulse 2.4s ease-in-out infinite;
}

.logo-core img {
	width: 76%;
	height: 76%;
	object-fit: contain;
}

.brand-wordmark {
	width: min(540px, 84vw);
	height: auto;
	object-fit: contain;
	filter: drop-shadow(0 10px 22px rgba(var(--brand-primary-dark-rgb), 0.2));
}

.hero-kicker {
	margin: 0;
	font-family: "Bebas Neue", "Impact", sans-serif;
	font-size: 1.5rem;
	letter-spacing: 0.2em;
	text-transform: uppercase;
	color: var(--text-secondary);
	font-weight: 700;
}

.hero-subtitle {
	max-width: 64ch;
	margin: 0;
	color: var(--text-secondary);
	font-size: clamp(1rem, 2vw, 1.2rem);
}

.badge-shields {
	display: flex;
	gap: 0.6rem;
	justify-content: center;
	align-items: center;
	flex-wrap: wrap;
	margin-top: 1.2rem;
	margin-bottom: 1.2rem;
}

.badge-shields img {
	display: block;
	height: auto;
	max-height: 24px;
	transition: transform var(--theme-transition) var(--theme-ease);
}

.badge-shields img:hover {
	transform: scale(1.1);
}



.status-badges {
	display: flex;
	gap: 0.75rem;
	justify-content: center;
	align-items: center;
	flex-wrap: wrap;
	margin: 0.5rem 0;
}

@media (max-width: 820px) {
	.site-nav {
		flex-wrap: nowrap;
		justify-content: space-between;
		padding: 0 1.25rem;
		gap: 0;
	}

	.nav-menu-btn {
		display: flex;
	}

	.nav-links {
		display: flex;
		flex-direction: column;
		position: absolute;
		top: 100%;
		left: 0;
		right: 0;
		background: var(--brand-primary-dark);
		border-bottom: 1px solid rgba(var(--brand-primary-rgb), 0.18);
		padding: 0 1.25rem;
		gap: 0.25rem;
		max-height: 0;
		overflow: hidden;
		transition: max-height 300ms ease, padding 300ms ease;
		/* Reset desktop ordering */
		order: initial;
		width: auto;
		justify-content: initial;
	}

	.site-nav.nav-open .nav-links {
		/* Large enough for the current 2 links with comfortable padding; update if more links are added */
		max-height: 600px;
		padding: 0.6rem 1.25rem 1rem;
	}

	.nav-links li {
		width: 100%;
	}

	.nav-link {
		display: block;
		padding: 0.85rem 1rem;
		border-radius: 12px;
		font-size: 1rem;
	}

	.content-page {
		padding-top: calc(var(--nav-height) + 3rem);
	}

	.content-intro h1 {
		font-size: clamp(2.4rem, 10vw, 4rem);
	}

	.content-card {
		padding: 1.2rem;
		border-radius: 22px;
	}
}

.status-badges a {
	display: inline-flex;
	align-items: center;
	text-decoration: none;
	border-radius: 4px;
	overflow: hidden;
}

.status-badges img {
	display: block;
	height: auto;
	max-height: 28px;
	transition: transform var(--theme-transition) var(--theme-ease);
}

.status-badges a:hover img {
	transform: scale(1.05);
}

.btn {
	display: inline-flex;
	align-items: center;
	justify-content: center;
	padding: 0.75rem 1.1rem;
	border-radius: 999px;
	text-decoration: none;
	font-weight: 700;
	border: 1px solid transparent;
}

.btn-primary {
	background: linear-gradient(130deg, var(--brand-primary), var(--brand-primary-variant));
	color: var(--brand-primary-dark);
}



.is-fading {
	opacity: 0;
}

@media (prefers-reduced-motion: reduce) {
	:root {
		--theme-transition: 0ms;
		--asset-fade-duration: 0ms;
	}

	.aurora {
		animation: none;
	}
}

.stripe {
	display: grid;
	grid-template-columns: repeat(4, minmax(0, 1fr));
	gap: 0.65rem;
	margin: 0 0 2rem;
	padding: 0.65rem;
	border-radius: 16px;
	background: var(--panel);
	border: 1px solid var(--line);
	box-shadow: var(--shadow);
	backdrop-filter: blur(8px);
}

.stripe p {
	margin: 0;
	font-size: 0.85rem;
	font-weight: 700;
	text-align: center;
	padding: 0.45rem;
	border-radius: 10px;
	background: rgba(var(--background-base-rgb), 0.34);
}

body.theme-dark .stripe p {
	background: rgba(var(--brand-primary-dark-rgb), 0.45);
}

/* Semantic usage helpers aligned with pseudocode guardrails. */
.status-success {
	color: var(--semantic-success);
}

.status-error {
	background: var(--semantic-error);
	color: #ffffff;
}

.chip-analytic {
	background: rgba(var(--accent-analytic-rgb), 0.18);
	color: var(--accent-analytic);
	border: 1px solid rgba(var(--accent-analytic-rgb), 0.35);
}

@media (max-width: 900px) {
	.stripe {
		grid-template-columns: repeat(2, minmax(0, 1fr));
	}
}

@media (max-width: 640px) {
	.placeholder-page {
		padding-top: calc(var(--nav-height) + 1rem);
	}

	.placeholder-page h1 {
		font-size: clamp(2.4rem, 14vw, 4rem);
	}

	.content-page {
		padding-top: calc(var(--nav-height) + 2.25rem);
	}

	.content-intro {
		gap: 0.7rem;
	}

	.content-lead {
		font-size: 1rem;
	}

	.content-card p {
		font-size: 0.97rem;
	}

	.stripe {
		grid-template-columns: 1fr;
	}
}

@keyframes pulse {
	0%,
	100% {
		transform: translateY(0px);
	}
	50% {
		transform: translateY(-5px);
	}
}

@keyframes drift {
	from {
		transform: rotate(0deg) scale(1.05);
	}
	to {
		transform: rotate(360deg) scale(1.05);
	}
}

/* ─── Walkthrough / Carousel section ──────────────────────────────────────── */

.walkthrough {
	padding: 2rem 0 4rem;
}

.walkthrough-title {
	margin: 0 0 0.35rem;
	font-family: "Bebas Neue", "Impact", sans-serif;
	font-size: clamp(2.2rem, 5vw, 3.2rem);
	letter-spacing: 0.04em;
	text-align: center;
	color: var(--text-primary);
}

.walkthrough-intro {
	margin: 0 auto 2rem;
	max-width: 46ch;
	text-align: center;
	color: var(--text-secondary);
	font-size: clamp(0.95rem, 1.8vw, 1.1rem);
}

.carousel {
	position: relative;
	max-width: 780px;
	margin: 0 auto;
	padding: 1.2rem 1.2rem 0;
	min-height: min(92vh, 940px);
	border-radius: 42px;
	border: 1px solid rgba(var(--brand-primary-rgb), 0.16);
	background:
		linear-gradient(180deg, rgba(var(--background-base-rgb), 0.52), rgba(var(--background-base-rgb), 0.18)),
		radial-gradient(circle at top, rgba(var(--brand-primary-rgb), 0.22), transparent 48%);
	box-shadow:
		0 28px 80px rgba(var(--brand-primary-dark-rgb), 0.22),
		inset 0 1px 0 rgba(255, 255, 255, 0.3);
	backdrop-filter: blur(18px);
	overflow: hidden;
}

body.theme-dark .carousel {
	background:
		linear-gradient(180deg, rgba(var(--brand-primary-dark-rgb), 0.82), rgba(var(--background-base-rgb), 0.52)),
		radial-gradient(circle at top, rgba(var(--brand-primary-rgb), 0.14), transparent 48%);
	box-shadow:
		0 28px 80px rgba(0, 0, 0, 0.45),
		inset 0 1px 0 rgba(255, 255, 255, 0.08);
}

.carousel::before {
	content: "";
	position: absolute;
	top: 0;
	left: 50%;
	transform: translateX(-50%);
	width: min(180px, 34%);
	height: 36px;
	border-radius: 0 0 22px 22px;
	background: rgba(var(--background-base-rgb), 0.7);
	backdrop-filter: blur(10px);
	z-index: 3;
}

body.theme-dark .carousel::before {
	background: rgba(0, 0, 0, 0.72);
}

.carousel-back {
	position: absolute;
	top: 0.95rem;
	left: 1rem;
	z-index: 4;
	width: 42px;
	height: 42px;
	border: 1px solid rgba(var(--brand-primary-rgb), 0.2);
	border-radius: 999px;
	background: rgba(var(--background-base-rgb), 0.48);
	color: var(--text);
	box-shadow: 0 10px 30px rgba(var(--brand-primary-dark-rgb), 0.14);
	backdrop-filter: blur(16px);
	font-size: 1.25rem;
	cursor: pointer;
	transition:
		opacity 180ms ease,
		transform 180ms ease,
		background-color var(--theme-transition) var(--theme-ease),
		border-color var(--theme-transition) var(--theme-ease);
}

.carousel-back:hover:not(:disabled) {
	transform: translateX(-1px);
	border-color: rgba(var(--brand-primary-rgb), 0.38);
}

.carousel-back:disabled {
	opacity: 0;
	pointer-events: none;
}

body.theme-dark .carousel-back {
	background: rgba(0, 0, 0, 0.38);
}

.carousel-track-wrap {
	width: 100%;
	max-width: 100%;
	flex: 1;
	padding: 3.7rem 0 13.5rem;
	overflow-x: hidden;
	overflow-y: visible;
}

.carousel-track {
	display: flex;
	list-style: none;
	margin: 0;
	padding: 0;
	gap: 0;
	transition: transform 480ms cubic-bezier(0.22, 1, 0.36, 1);
	will-change: transform;
}

.carousel-slide {
	flex: 0 0 100%;
	min-width: 0;
	display: flex;
	align-items: center;
	justify-content: center;
	padding: 0 2rem;
}

.slide-phone {
	--phone-bezel: 9px;
	position: relative;
	width: min(100%, 360px);
	flex-shrink: 0;
	aspect-ratio: 1290 / 2796;
	border-radius: 12% / 5.5%;
	overflow: hidden;
	background: #000;
	border: 6px solid #ffffff;
	box-shadow:
		inset 0 0 0 3px #111111,
		0 0 0 0.5px rgba(255, 255, 255, 0.5),
		0 36px 90px rgba(var(--brand-primary-dark-rgb), 0.32),
		0 8px 28px rgba(var(--brand-primary-rgb), 0.12);
	transform-origin: var(--phone-anchor-x, 50%) var(--phone-anchor-y, 50%);
	transform: translateY(var(--phone-offset-y, 0px)) scale(var(--phone-scale, 1));
	transition:
		border-color var(--theme-transition) var(--theme-ease),
		box-shadow var(--theme-transition) var(--theme-ease),
		transform 480ms cubic-bezier(0.22, 1, 0.36, 1);
}

body.theme-dark .slide-phone {
	border-color: #0d0d0d;
	box-shadow:
		inset 0 0 0 3px rgba(255, 255, 255, 0.88),
		0 0 0 0.5px rgba(0, 0, 0, 0.3),
		0 36px 90px rgba(0, 0, 0, 0.5),
		0 0 1px rgba(255, 255, 255, 0.1);
}

.slide-phone-viewport {
	position: absolute;
	inset: var(--phone-bezel);
	border-radius: calc(12% - 6px) / calc(5.5% - 3px);
	overflow: hidden;
	background: #000;
	box-shadow: inset 0 0 0 0.5px rgba(255, 255, 255, 0.05);
}

.slide-screenshot {
	display: block;
	width: 100%;
	height: 100%;
	object-fit: cover;
	object-position: center;
	transition: opacity var(--asset-fade-duration) var(--theme-ease);
}

.walkthrough-panel {
	position: absolute;
	left: 0;
	right: 0;
	bottom: 0;
	z-index: 2;
	padding: 1.1rem 1rem calc(1rem + env(safe-area-inset-bottom));
	background:
		linear-gradient(180deg, rgba(var(--background-base-rgb), 0), rgba(var(--background-base-rgb), 0.55) 18%, rgba(var(--background-base-rgb), 0.92));
}

body.theme-dark .walkthrough-panel {
	background:
		linear-gradient(180deg, rgba(var(--background-base-rgb), 0), rgba(0, 0, 0, 0.34) 18%, rgba(0, 0, 0, 0.72));
}

.walkthrough-panel::before {
	content: "";
	position: absolute;
	left: -18px;
	right: -18px;
	bottom: -18px;
	top: 10px;
	background: rgba(var(--background-base-rgb), 0.6);
	backdrop-filter: blur(20px);
	-webkit-mask-image: linear-gradient(180deg, transparent 0%, rgba(0, 0, 0, 0.6) 18%, #000 34%);
	mask-image: linear-gradient(180deg, transparent 0%, rgba(0, 0, 0, 0.6) 18%, #000 34%);
	pointer-events: none;
}

body.theme-dark .walkthrough-panel::before {
	background: rgba(0, 0, 0, 0.42);
}

.walkthrough-copy,
.walkthrough-footer {
	position: relative;
	z-index: 1;
}

@supports not ((backdrop-filter: blur(1px)) or (-webkit-backdrop-filter: blur(1px))) {
	.stripe {
		background: rgba(var(--background-base-rgb), 0.95);
	}

	.carousel {
		background:
			linear-gradient(180deg, rgba(var(--background-base-rgb), 0.92), rgba(var(--background-base-rgb), 0.84)),
			radial-gradient(circle at top, rgba(var(--brand-primary-rgb), 0.18), transparent 48%);
	}

	body.theme-dark .carousel {
		background:
			linear-gradient(180deg, rgba(var(--brand-primary-dark-rgb), 0.95), rgba(var(--background-base-rgb), 0.88)),
			radial-gradient(circle at top, rgba(var(--brand-primary-rgb), 0.1), transparent 48%);
	}

	.carousel::before,
	.carousel-back,
	.walkthrough-panel::before {
		backdrop-filter: none;
	}

	.walkthrough-panel::before {
		background: rgba(var(--background-base-rgb), 0.9);
		-webkit-mask-image: none;
		mask-image: none;
	}
}

.walkthrough-copy {
	display: flex;
	flex-direction: column;
	align-items: center;
	text-align: center;
	gap: 0.45rem;
	padding: 0 1rem 0.9rem;
}

.slide-index {
	font-size: 0.7rem;
	font-weight: 700;
	letter-spacing: 0.15em;
	text-transform: uppercase;
	color: var(--text-secondary);
}

.slide-title {
	margin: 0;
	font-size: clamp(1.35rem, 3vw, 1.7rem);
	font-weight: 600;
	color: var(--text-primary);
	line-height: 1.1;
}

.slide-subtitle {
	margin: 0;
	color: var(--text-secondary);
	font-size: clamp(0.98rem, 1.8vw, 1.08rem);
	line-height: 1.55;
	max-width: 34ch;
}

.walkthrough-footer {
	display: flex;
	flex-direction: column;
	align-items: center;
	gap: 0.9rem;
	padding: 0 0.4rem;
}

.carousel-controls {
	display: flex;
	align-items: center;
	justify-content: space-between;
	gap: 1rem;
	width: 100%;
	max-width: 420px;
}

.carousel-next {
	min-width: 190px;
	border: none;
	border-radius: 999px;
	padding: 0.95rem 1.35rem;
	background: linear-gradient(135deg, var(--brand-primary), var(--brand-primary-variant));
	color: var(--brand-primary-dark);
	font-family: inherit;
	font-size: 0.98rem;
	font-weight: 700;
	letter-spacing: 0.01em;
	cursor: pointer;
	box-shadow:
		0 14px 28px rgba(var(--brand-primary-rgb), 0.28),
		inset 0 1px 0 rgba(255, 255, 255, 0.4);
	transition:
		transform 160ms ease,
		box-shadow var(--theme-transition) var(--theme-ease),
		filter var(--theme-transition) var(--theme-ease);
}

.carousel-next:hover {
	transform: translateY(-1px);
	box-shadow:
		0 18px 30px rgba(var(--brand-primary-rgb), 0.34),
		inset 0 1px 0 rgba(255, 255, 255, 0.45);
}

.carousel-next:active {
	transform: translateY(0);
}

.carousel-dots {
	display: flex;
	gap: 6px;
	align-items: center;
	justify-content: center;
	flex-wrap: wrap;
}

.carousel-dot {
	width: 6px;
	height: 6px;
	border-radius: 999px;
	background: rgba(var(--brand-primary-dark-rgb), 0.24);
	border: none;
	padding: 0;
	cursor: pointer;
	transition:
		width 280ms cubic-bezier(0.22, 1, 0.36, 1),
		background-color var(--theme-transition) var(--theme-ease),
		opacity 160ms ease,
		transform 160ms ease;
	opacity: 0.85;
}

.carousel-dot[aria-selected="true"] {
	width: 25px;
	background: var(--text);
	opacity: 1;
}

body.theme-dark .carousel-dot {
	background: rgba(255, 255, 255, 0.3);
}

body.theme-dark .carousel-dot[aria-selected="true"] {
	background: rgba(255, 255, 255, 0.92);
}

@media (prefers-reduced-motion: reduce) {
	.carousel-track {
		transition: none;
	}
}

@media (min-width: 900px) {
	.carousel {
		max-width: 1180px;
		min-height: 760px;
		padding: 1.35rem;
		display: grid;
		grid-template-columns: minmax(340px, 0.95fr) minmax(320px, 0.85fr);
		column-gap: 1.5rem;
		align-items: stretch;
	}

	.carousel::before {
		left: 22%;
		width: 180px;
	}

	.carousel-track-wrap {
		padding: 3.9rem 0 1.25rem;
		height: 100%;
	}

	.carousel-slide {
		min-height: 100%;
		padding: 0 1.5rem 0 1rem;
	}

	.slide-phone {
		width: min(100%, 390px);
	}

	.walkthrough-panel {
		position: relative;
		left: auto;
		right: auto;
		bottom: auto;
		align-self: stretch;
		display: flex;
		flex-direction: column;
		justify-content: center;
		padding: 2rem 1.6rem;
		margin: 3.9rem 0 1.25rem;
		border-radius: 34px;
		border: 1px solid rgba(var(--brand-primary-rgb), 0.14);
		background:
			linear-gradient(180deg, rgba(var(--background-base-rgb), 0.78), rgba(var(--background-base-rgb), 0.58)),
			radial-gradient(circle at top left, rgba(var(--brand-primary-rgb), 0.14), transparent 42%);
		box-shadow:
			inset 0 1px 0 rgba(255, 255, 255, 0.22),
			0 24px 50px rgba(var(--brand-primary-dark-rgb), 0.16);
		backdrop-filter: blur(16px);
	}

	body.theme-dark .walkthrough-panel {
		background:
			linear-gradient(180deg, rgba(var(--brand-primary-dark-rgb), 0.88), rgba(var(--background-base-rgb), 0.72)),
			radial-gradient(circle at top left, rgba(var(--brand-primary-rgb), 0.08), transparent 42%);
		box-shadow:
			inset 0 1px 0 rgba(255, 255, 255, 0.08),
			0 24px 50px rgba(0, 0, 0, 0.28);
	}

	.walkthrough-panel::before {
		display: none;
	}

	.walkthrough-copy {
		align-items: flex-start;
		text-align: left;
		padding: 0;
		gap: 0.75rem;
	}

	.slide-title {
		font-size: clamp(1.7rem, 2.5vw, 2.35rem);
	}

	.slide-subtitle {
		max-width: 26ch;
		font-size: 1.04rem;
	}

	.walkthrough-footer {
		align-items: flex-start;
		margin-top: 1.4rem;
		padding: 0;
	}

	.carousel-controls {
		flex-direction: column;
		align-items: flex-start;
		max-width: none;
	}

	.carousel-next {
		width: auto;
		min-width: 220px;
	}

	.carousel-dots {
		justify-content: flex-start;
	}
}

@media (max-width: 768px) {
	.walkthrough {
		padding-top: 1.2rem;
	}

	.carousel-slide {
		padding: 0 1rem;
	}

	.slide-phone {
		width: min(100%, 300px);
	}

	.carousel {
		min-height: 760px;
		border-radius: 34px;
	}

	.carousel-track-wrap {
		padding-top: 4.5rem;
		padding-bottom: 14.75rem;
	}

	.carousel-controls {
		flex-direction: column;
	}

	.carousel-next {
		width: min(100%, 340px);
	}
}

@media (max-width: 480px) {
	.carousel {
		min-height: 680px;
		padding: 0.85rem 0.75rem 0;
		border-radius: 30px;
	}

	.slide-phone {
		width: min(100%, 250px);
	}

	.carousel-track-wrap {
		padding-top: 4.2rem;
		padding-bottom: 15.2rem;
	}

	.carousel-back {
		top: 0.7rem;
		left: 0.75rem;
	}

	.walkthrough-copy {
		padding-inline: 0.35rem;
	}

	.slide-title {
		font-size: 1.25rem;
	}

	.slide-subtitle {
		font-size: 0.95rem;
	}
}

/* GitHub button */
.github-button {
	display: inline-flex;
	align-items: center;
	padding: 0.75rem;
	border: 2px solid var(--brand-primary);
	border-radius: 0.5rem;
	text-decoration: none;
	transition: all var(--theme-transition) var(--theme-ease);
}

.github-button:hover {
	border-color: var(--accent-primary);
	background-color: rgba(var(--accent-primary-rgb), 0.08);
}

.github-button:active {
	border-color: var(--brand-primary-dark);
	background-color: rgba(var(--brand-primary-dark-rgb), 0.12);
}

/* GitHub logo */
.github-light {
	display: none;
	height: 1.5rem;
}

.github-dark {
	display: block;
	height: 1.5rem;
}