/* Voidfall — dark dunes / glass / neon marketing theme */

:root {
	--vf-bg: #070809;
	--vf-bg-elevated: #101214;
	--vf-bg-muted: #0c0e11;
	--vf-sand: #8a8680;
	--vf-fog: #c8c4bc;
	--vf-text: #f2f0ea;
	--vf-muted: #9a968e;
	--vf-line: rgba(242, 240, 234, 0.12);
	--vf-neon: #b6ff3d;
	--vf-neon-dim: rgba(182, 255, 61, 0.16);
	--vf-glass: rgba(16, 18, 20, 0.55);
	--vf-radius: 1.25rem;
	--vf-radius-pill: 999px;
	--vf-font-display: "Syne", sans-serif;
	--vf-font-body: "Sora", sans-serif;
	--vf-wrap: min(1120px, calc(100% - 2.5rem));
	--vf-header: 4.25rem;
	--vf-ease: cubic-bezier(0.22, 1, 0.36, 1);
}

*,
*::before,
*::after {
	box-sizing: border-box;
}

html {
	scroll-behavior: smooth;
}

body {
	margin: 0;
	font-family: var(--vf-font-body);
	font-size: 1.05rem;
	line-height: 1.6;
	color: var(--vf-text);
	background:
		radial-gradient(1200px 700px at 80% -10%, rgba(182, 255, 61, 0.08), transparent 55%),
		radial-gradient(900px 600px at 10% 20%, rgba(140, 130, 110, 0.12), transparent 50%),
		linear-gradient(180deg, #0a0b0d 0%, var(--vf-bg) 40%, #050607 100%);
	background-attachment: fixed;
	min-height: 100vh;
	-webkit-font-smoothing: antialiased;
}

img {
	max-width: 100%;
	height: auto;
	display: block;
}

a {
	color: var(--vf-neon);
	text-decoration-thickness: 1px;
	text-underline-offset: 0.2em;
}

a:hover {
	color: #d6ff7a;
}

.screen-reader-text,
.vf-skip {
	position: absolute;
	left: -9999px;
}

.vf-skip:focus {
	left: 1rem;
	top: 1rem;
	z-index: 100;
	background: var(--vf-neon);
	color: #0a0b0d;
	padding: 0.75rem 1rem;
	border-radius: 0.5rem;
}

.vf-wrap {
	width: var(--vf-wrap);
	margin-inline: auto;
}

.vf-wrap--narrow {
	width: min(720px, calc(100% - 2.5rem));
}

/* Header */
.vf-header {
	position: sticky;
	top: 0;
	z-index: 50;
	backdrop-filter: blur(18px);
	background: rgba(7, 8, 9, 0.72);
	border-bottom: 1px solid var(--vf-line);
}

.vf-header__inner {
	width: var(--vf-wrap);
	margin-inline: auto;
	min-height: var(--vf-header);
	display: flex;
	align-items: center;
	justify-content: space-between;
	gap: 1rem;
}

.vf-brand {
	display: inline-flex;
	align-items: center;
	gap: 0.65rem;
	color: var(--vf-text);
	text-decoration: none;
}

.vf-brand__mark {
	width: 0.7rem;
	height: 0.7rem;
	border-radius: 50%;
	background: var(--vf-neon);
	box-shadow: 0 0 18px rgba(182, 255, 61, 0.65);
}

.vf-brand__name {
	font-family: var(--vf-font-display);
	font-weight: 800;
	letter-spacing: -0.03em;
	font-size: 1.25rem;
}

.vf-nav {
	display: flex;
	align-items: center;
	gap: 1.25rem;
}

.vf-nav__list {
	display: flex;
	gap: 1.1rem;
	list-style: none;
	margin: 0;
	padding: 0;
}

.vf-nav__list a {
	color: var(--vf-fog);
	text-decoration: none;
	font-size: 0.92rem;
	font-weight: 500;
}

.vf-nav__list a:hover,
.vf-nav__list .current-menu-item > a {
	color: var(--vf-text);
}

.vf-nav-toggle {
	display: none;
	width: 2.75rem;
	height: 2.75rem;
	border: 1px solid var(--vf-line);
	border-radius: 0.85rem;
	background: transparent;
	cursor: pointer;
}

.vf-nav-toggle__bars,
.vf-nav-toggle__bars::before,
.vf-nav-toggle__bars::after {
	display: block;
	width: 1.1rem;
	height: 2px;
	margin: 0 auto;
	background: var(--vf-text);
	position: relative;
}

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

.vf-nav-toggle__bars::before { top: -6px; }
.vf-nav-toggle__bars::after { top: 6px; }

/* Buttons */
.vf-btn {
	display: inline-flex;
	align-items: center;
	justify-content: center;
	gap: 0.4rem;
	min-height: 3rem;
	padding: 0.75rem 1.35rem;
	border-radius: var(--vf-radius-pill);
	font-family: var(--vf-font-body);
	font-weight: 600;
	font-size: 0.95rem;
	text-decoration: none;
	border: 1px solid transparent;
	transition: transform 0.35s var(--vf-ease), background 0.25s ease, border-color 0.25s ease, color 0.25s ease;
}

.vf-btn:hover {
	transform: translateY(-2px);
	text-decoration: none;
}

.vf-btn--primary {
	background: var(--vf-neon);
	color: #0a0b0d;
}

.vf-btn--primary:hover {
	background: #d0ff6a;
	color: #0a0b0d;
}

.vf-btn--ghost {
	background: transparent;
	color: var(--vf-text);
	border-color: var(--vf-line);
}

.vf-btn--ghost:hover {
	border-color: rgba(182, 255, 61, 0.45);
	color: var(--vf-neon);
}

.vf-btn--compact {
	min-height: 2.4rem;
	padding-inline: 1rem;
	font-size: 0.85rem;
}

.vf-ctas {
	display: flex;
	flex-wrap: wrap;
	gap: 0.75rem;
}

.vf-link {
	font-weight: 600;
	color: var(--vf-text);
	text-decoration: none;
	border-bottom: 1px solid var(--vf-neon);
}

.vf-link:hover {
	color: var(--vf-neon);
}

/* Hero */
.vf-hero {
	position: relative;
	overflow: clip;
	min-height: calc(100svh - var(--vf-header));
	display: grid;
	align-items: center;
	padding: 2.5rem 0 3.5rem;
}

.vf-hero__atmosphere {
	position: absolute;
	inset: 0;
	background:
		url("../img/hero/lockscreen.jpg") center / cover no-repeat;
	opacity: 0.18;
	filter: grayscale(1) contrast(1.15) brightness(0.55);
	transform: scale(1.05);
	pointer-events: none;
}

.vf-hero__atmosphere::after {
	content: "";
	position: absolute;
	inset: 0;
	background:
		linear-gradient(90deg, rgba(7, 8, 9, 0.95) 0%, rgba(7, 8, 9, 0.72) 42%, rgba(7, 8, 9, 0.35) 100%),
		linear-gradient(180deg, rgba(7, 8, 9, 0.2), rgba(7, 8, 9, 0.95));
}

.vf-hero__grid {
	position: relative;
	width: var(--vf-wrap);
	margin-inline: auto;
	display: grid;
	grid-template-columns: minmax(0, 1.05fr) minmax(0, 0.95fr);
	gap: 2.5rem;
	align-items: center;
}

.vf-eyebrow {
	margin: 0 0 0.75rem;
	font-size: 0.78rem;
	letter-spacing: 0.16em;
	text-transform: uppercase;
	color: var(--vf-neon);
	font-weight: 600;
}

.vf-hero__brand {
	margin: 0;
	font-family: var(--vf-font-display);
	font-weight: 800;
	font-size: clamp(4.2rem, 12vw, 7.5rem);
	line-height: 0.9;
	letter-spacing: -0.06em;
	color: var(--vf-text);
	text-shadow: 0 0 40px rgba(182, 255, 61, 0.12);
}

.vf-hero__lede,
.vf-lede {
	margin: 1.1rem 0 1.5rem;
	max-width: 34rem;
	color: var(--vf-fog);
	font-size: 1.08rem;
}

.vf-hero__meta {
	margin: 1rem 0 0;
	color: var(--vf-muted);
	font-size: 0.88rem;
}

.vf-hero__stage {
	display: flex;
	justify-content: center;
}

/* Phone frame */
.vf-phone {
	margin: 0;
	width: min(100%, 280px);
	border-radius: 2rem;
	padding: 0.55rem;
	background: linear-gradient(160deg, rgba(255, 255, 255, 0.18), rgba(255, 255, 255, 0.04));
	box-shadow:
		0 30px 80px rgba(0, 0, 0, 0.55),
		inset 0 0 0 1px rgba(255, 255, 255, 0.08);
}

.vf-phone img {
	width: 100%;
	border-radius: 1.55rem;
	aspect-ratio: 9 / 19.5;
	object-fit: cover;
	background: #000;
}

.vf-phone--hero {
	width: min(100%, 320px);
	animation: vf-float 7s var(--vf-ease) infinite;
}

@keyframes vf-float {
	0%, 100% { transform: translateY(0); }
	50% { transform: translateY(-12px); }
}

/* Sections */
.vf-section {
	padding: 5rem 0;
}

.vf-section--muted {
	background: rgba(255, 255, 255, 0.02);
	border-block: 1px solid var(--vf-line);
}

.vf-section--strip {
	padding-block: 3.5rem;
}

.vf-section__head {
	max-width: 40rem;
	margin-bottom: 2.5rem;
}

.vf-section__head h2,
.vf-split__copy h2,
.vf-page-title,
.vf-feature__copy h2,
.vf-dl-card h2,
.vf-guide h2,
.vf-strip h2 {
	font-family: var(--vf-font-display);
	font-weight: 700;
	letter-spacing: -0.04em;
	line-height: 1.05;
	margin: 0 0 0.75rem;
}

.vf-page-title {
	font-size: clamp(2.4rem, 6vw, 4rem);
}

.vf-section__head h2,
.vf-split__copy h2,
.vf-strip h2 {
	font-size: clamp(2rem, 4vw, 3rem);
}

.vf-section__head p,
.vf-split__copy > p,
.vf-feature__copy > p,
.vf-dl-card > p,
.vf-guide p {
	color: var(--vf-muted);
	margin: 0;
}

.vf-section__cta-row {
	display: flex;
	flex-wrap: wrap;
	gap: 0.85rem;
	margin-top: 2rem;
}

/* Proof cards — interaction containers, not decorative chrome cards */
.vf-proof {
	display: grid;
	grid-template-columns: repeat(3, minmax(0, 1fr));
	gap: 1.25rem;
}

.vf-proof__card {
	margin: 0;
	padding: 0;
	background: transparent;
}

.vf-proof__card img {
	width: 100%;
	border-radius: 1.25rem;
	aspect-ratio: 9 / 16;
	object-fit: cover;
	border: 1px solid var(--vf-line);
	margin-bottom: 1rem;
}

.vf-proof__card h3 {
	margin: 0 0 0.35rem;
	font-family: var(--vf-font-display);
	font-size: 1.35rem;
	letter-spacing: -0.03em;
}

.vf-proof__card p {
	margin: 0;
	color: var(--vf-muted);
	font-size: 0.95rem;
}

/* Split */
.vf-split {
	display: grid;
	grid-template-columns: 0.85fr 1.15fr;
	gap: 3rem;
	align-items: center;
}

.vf-checklist,
.vf-meta-list {
	margin: 1.25rem 0 1.75rem;
	padding: 0;
	list-style: none;
}

.vf-checklist li,
.vf-meta-list li {
	position: relative;
	padding: 0.55rem 0 0.55rem 1.4rem;
	border-bottom: 1px solid var(--vf-line);
	color: var(--vf-fog);
}

.vf-checklist li::before {
	content: "";
	position: absolute;
	left: 0;
	top: 1rem;
	width: 0.55rem;
	height: 0.55rem;
	border-radius: 50%;
	background: var(--vf-neon);
}

/* Steps */
.vf-steps {
	margin: 0;
	padding: 0;
	list-style: none;
	display: grid;
	grid-template-columns: repeat(3, minmax(0, 1fr));
	gap: 1.25rem;
	counter-reset: vfstep;
}

.vf-steps li {
	padding: 1.5rem 0 0;
	border-top: 1px solid var(--vf-line);
	counter-increment: vfstep;
}

.vf-steps li::before {
	content: counter(vfstep, decimal-leading-zero);
	display: block;
	margin-bottom: 0.85rem;
	font-family: var(--vf-font-display);
	font-size: 0.9rem;
	letter-spacing: 0.12em;
	color: var(--vf-neon);
}

.vf-steps strong {
	display: block;
	font-family: var(--vf-font-display);
	font-size: 1.35rem;
	letter-spacing: -0.03em;
	margin-bottom: 0.4rem;
}

.vf-steps span {
	color: var(--vf-muted);
	font-size: 0.95rem;
}

.vf-strip {
	display: flex;
	align-items: center;
	justify-content: space-between;
	gap: 1.5rem;
	padding: 1.75rem 0;
	border-block: 1px solid var(--vf-line);
}

/* Page hero */
.vf-page-hero {
	padding: 3.5rem 0 1rem;
}

/* Download */
.vf-download-grid {
	display: grid;
	grid-template-columns: 1.15fr 0.85fr;
	gap: 1.5rem;
}

.vf-dl-card {
	padding: 1.75rem;
	border: 1px solid var(--vf-line);
	border-radius: var(--vf-radius);
	background: rgba(255, 255, 255, 0.02);
}

.vf-dl-card--primary {
	background:
		linear-gradient(160deg, var(--vf-neon-dim), transparent 40%),
		rgba(255, 255, 255, 0.02);
}

.vf-dl-card .vf-btn {
	margin: 1.1rem 0 1.5rem;
}

.vf-notice {
	margin: 1rem 0 1.25rem;
	padding: 0.9rem 1rem;
	border-radius: 0.85rem;
	background: rgba(182, 255, 61, 0.08);
	border: 1px dashed rgba(182, 255, 61, 0.35);
	color: var(--vf-fog);
	font-size: 0.92rem;
}

.vf-shot {
	margin: 0;
}

.vf-shot img {
	width: 100%;
	border-radius: 1rem;
	border: 1px solid var(--vf-line);
	aspect-ratio: 9 / 16;
	object-fit: cover;
}

/* Features */
.vf-feature-list {
	display: grid;
	gap: 4rem;
}

.vf-feature {
	display: grid;
	grid-template-columns: 1fr 0.85fr;
	gap: 2.5rem;
	align-items: center;
}

.vf-feature--flip {
	grid-template-columns: 0.85fr 1fr;
}

.vf-feature--flip .vf-feature__copy {
	order: 2;
}

.vf-feature--flip .vf-phone {
	order: 1;
	justify-self: start;
}

.vf-feature .vf-phone {
	justify-self: end;
}

.vf-gallery {
	display: grid;
	grid-template-columns: repeat(4, minmax(0, 1fr));
	gap: 1rem;
}

.vf-gallery figure {
	margin: 0;
}

.vf-gallery img {
	width: 100%;
	aspect-ratio: 9 / 16;
	object-fit: cover;
	border-radius: 1rem;
	border: 1px solid var(--vf-line);
}

.vf-gallery figcaption {
	margin-top: 0.55rem;
	font-size: 0.85rem;
	color: var(--vf-muted);
}

/* Apply guide */
.vf-path-switch {
	display: inline-flex;
	gap: 0.35rem;
	padding: 0.3rem;
	margin-top: 1.5rem;
	border: 1px solid var(--vf-line);
	border-radius: var(--vf-radius-pill);
	background: rgba(255, 255, 255, 0.03);
}

.vf-path-switch button {
	appearance: none;
	border: 0;
	background: transparent;
	color: var(--vf-muted);
	font: inherit;
	font-weight: 600;
	font-size: 0.9rem;
	padding: 0.65rem 1.1rem;
	border-radius: var(--vf-radius-pill);
	cursor: pointer;
}

.vf-path-switch button.is-active {
	background: var(--vf-neon);
	color: #0a0b0d;
}

.vf-guide {
	margin: 0;
	padding: 0;
	list-style: none;
	display: grid;
	gap: 3rem;
	counter-reset: vfguide;
}

.vf-guide > li {
	display: grid;
	grid-template-columns: 1.1fr 0.7fr;
	gap: 2rem;
	align-items: center;
	counter-increment: vfguide;
}

.vf-guide > li::before {
	content: counter(vfguide, decimal-leading-zero);
	grid-column: 1 / -1;
	font-family: var(--vf-font-display);
	color: var(--vf-neon);
	letter-spacing: 0.14em;
	font-size: 0.85rem;
}

.vf-path-panel[hidden] {
	display: none;
}

/* Footer */
.vf-footer {
	padding: 3.5rem 0 2.5rem;
	border-top: 1px solid var(--vf-line);
	background: #050607;
}

.vf-footer__inner {
	width: var(--vf-wrap);
	margin-inline: auto;
	display: grid;
	gap: 1.5rem;
}

.vf-footer__brand p,
.vf-footer__note {
	color: var(--vf-muted);
	font-size: 0.9rem;
	max-width: 36rem;
}

.vf-footer__nav {
	display: flex;
	flex-wrap: wrap;
	gap: 1rem 1.35rem;
}

.vf-footer__nav a {
	color: var(--vf-fog);
	text-decoration: none;
}

.vf-footer__nav a:hover {
	color: var(--vf-neon);
}

.vf-prose {
	color: var(--vf-fog);
}

.vf-prose :where(h1, h2, h3) {
	font-family: var(--vf-font-display);
	color: var(--vf-text);
}

/* Motion */
[data-reveal] {
	opacity: 0;
	transform: translateY(18px);
	transition: opacity 0.8s var(--vf-ease), transform 0.8s var(--vf-ease);
}

[data-reveal].is-inview {
	opacity: 1;
	transform: none;
}

@media (prefers-reduced-motion: reduce) {
	html { scroll-behavior: auto; }
	.vf-phone--hero { animation: none; }
	[data-reveal] {
		opacity: 1;
		transform: none;
		transition: none;
	}
}

/* Responsive */
@media (max-width: 960px) {
	.vf-hero__grid,
	.vf-split,
	.vf-feature,
	.vf-feature--flip,
	.vf-download-grid,
	.vf-guide > li {
		grid-template-columns: 1fr;
	}

	.vf-feature--flip .vf-feature__copy,
	.vf-feature--flip .vf-phone {
		order: initial;
	}

	.vf-proof,
	.vf-steps,
	.vf-gallery {
		grid-template-columns: 1fr;
	}

	.vf-hero {
		min-height: auto;
		padding-top: 2rem;
	}

	.vf-hero__brand {
		font-size: clamp(3.4rem, 18vw, 5rem);
	}

	.vf-phone,
	.vf-phone--hero {
		width: min(100%, 260px);
		margin-inline: auto;
	}

	.vf-strip {
		flex-direction: column;
		align-items: flex-start;
	}
}

@media (max-width: 780px) {
	.vf-nav-toggle {
		display: inline-flex;
		align-items: center;
		justify-content: center;
	}

	.vf-nav {
		position: fixed;
		inset: var(--vf-header) 0 auto 0;
		display: none;
		flex-direction: column;
		align-items: stretch;
		gap: 1rem;
		padding: 1.25rem 1.25rem 1.5rem;
		background: rgba(7, 8, 9, 0.96);
		border-bottom: 1px solid var(--vf-line);
	}

	.vf-nav.is-open {
		display: flex;
	}

	.vf-nav__list {
		flex-direction: column;
		gap: 0.85rem;
	}

	.vf-nav__cta {
		width: 100%;
	}

	.vf-gallery {
		grid-template-columns: repeat(2, minmax(0, 1fr));
	}
}