:root {
	--vi-black: #010207;
	--vi-deep: #050b16;
	--vi-blue: #5ab8ff;
	--vi-blue-soft: #b9e2ff;
	--vi-white: #f4f8ff;
	--vi-muted: #8c99ab;
	--vi-border: rgba(151, 207, 255, 0.22);
	--vi-display: Georgia, "Times New Roman", serif;
	--vi-sans: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

* {
	box-sizing: border-box;
}

html {
	background: var(--vi-black);
	color-scheme: dark;
}

body {
	margin: 0;
	background: var(--vi-black);
	color: var(--vi-white);
	font-family: var(--vi-sans);
	font-size: 16px;
	line-height: 1.6;
	-webkit-font-smoothing: antialiased;
	text-rendering: optimizeLegibility;
}

body.home.vi-sequence-running {
	overflow: hidden;
}

button,
a {
	color: inherit;
}

.vi-skip-link {
	position: fixed;
	top: 1rem;
	left: 1rem;
	z-index: 100;
	padding: 0.7rem 1rem;
	background: var(--vi-white);
	color: var(--vi-black);
	font-weight: 700;
	text-decoration: none;
	transform: translateY(-180%);
	transition: transform 160ms ease;
}

.vi-skip-link:focus {
	transform: translateY(0);
}

.vi-shell {
	position: relative;
	isolation: isolate;
	display: grid;
	min-height: 100vh;
	min-height: 100svh;
	overflow: hidden;
	place-items: center;
	padding: clamp(2rem, 5vw, 5rem) 1.25rem;
	background: #000;
	transition: background 2.4s ease;
}

.vi-sequence-atmosphere .vi-shell,
.vi-sequence-complete .vi-shell {
	background:
		radial-gradient(circle at 50% 44%, rgba(41, 126, 197, 0.12), transparent 22rem),
		radial-gradient(circle at 50% 100%, rgba(15, 43, 78, 0.25), transparent 45%),
		linear-gradient(180deg, #000105 0%, #030712 58%, #010207 100%);
}

.vi-stars,
.vi-noise {
	position: absolute;
	inset: 0;
	pointer-events: none;
	transition: opacity 2.8s ease;
}

.vi-stars {
	z-index: -3;
	opacity: 0;
	background-image:
		radial-gradient(circle, rgba(255,255,255,0.8) 0 0.6px, transparent 0.8px),
		radial-gradient(circle, rgba(114,190,255,0.7) 0 0.7px, transparent 0.9px),
		radial-gradient(circle, rgba(255,255,255,0.45) 0 0.45px, transparent 0.7px);
	background-position: 0 0, 43px 87px, 121px 34px;
	background-size: 181px 181px, 263px 263px, 127px 127px;
	mask-image: linear-gradient(to bottom, black 0%, rgba(0,0,0,0.7) 68%, transparent 100%);
}

.vi-noise {
	z-index: 4;
	opacity: 0;
	background-image: repeating-linear-gradient(0deg, transparent 0 3px, rgba(255,255,255,0.025) 4px);
	mix-blend-mode: soft-light;
}

.vi-sequence-atmosphere .vi-stars,
.vi-sequence-complete .vi-stars {
	opacity: 0.5;
}

.vi-sequence-atmosphere .vi-noise,
.vi-sequence-complete .vi-noise {
	opacity: 0.12;
}

.vi-void-stage {
	position: absolute;
	inset: 50% auto auto 50%;
	z-index: -1;
	width: 1px;
	height: 1px;
	pointer-events: none;
	transform: translate(-50%, -50%);
	transition: opacity 2.2s ease, filter 2.2s ease;
}

.vi-void-stage span {
	position: absolute;
	inset: 50% auto auto 50%;
	display: block;
	border-radius: 50%;
	transform: translate(-50%, -50%);
}

.vi-void-stage__field {
	width: 78vmax;
	aspect-ratio: 1;
	opacity: 0;
	background: radial-gradient(circle, rgba(53, 161, 242, 0.15) 0%, rgba(29, 94, 159, 0.08) 22%, rgba(5, 20, 41, 0.025) 52%, transparent 72%);
	filter: blur(1.5rem);
	transform: translate(-50%, -50%) scale(0.008);
}

.vi-void-stage__bloom {
	width: 62vmax;
	aspect-ratio: 1;
	opacity: 0;
	background: radial-gradient(circle, rgba(222, 245, 255, 0.94) 0%, rgba(101, 193, 255, 0.63) 0.55%, rgba(56, 150, 226, 0.25) 3%, rgba(18, 70, 127, 0.09) 18%, transparent 60%);
	filter: blur(0.25rem);
	transform: translate(-50%, -50%) scale(0.006);
}

.vi-void-stage__core {
	width: clamp(3px, 0.44vw, 7px);
	aspect-ratio: 1;
	opacity: 0;
	background: #edf9ff;
	box-shadow:
		0 0 0.65rem rgba(213, 242, 255, 1),
		0 0 2rem rgba(83, 183, 255, 0.95),
		0 0 5rem rgba(28, 117, 197, 0.7);
	transform: translate(-50%, -50%) scale(0.25);
}

.vi-void-stage__ring {
	width: 10rem;
	aspect-ratio: 1;
	opacity: 0;
	border: 1px solid rgba(121, 207, 255, 0.32);
	box-shadow: inset 0 0 2.5rem rgba(68, 166, 237, 0.08), 0 0 2.5rem rgba(68, 166, 237, 0.08);
	transform: translate(-50%, -50%) scale(0.03);
}

.vi-sequence-started .vi-void-stage__core {
	animation: vi-core-arrival 8.4s cubic-bezier(0.16, 0.72, 0.2, 1) forwards;
}

.vi-sequence-started .vi-void-stage__bloom {
	animation: vi-bloom-expansion 8.8s cubic-bezier(0.14, 0.72, 0.18, 1) forwards;
}

.vi-sequence-started .vi-void-stage__field {
	animation: vi-field-expansion 9.2s cubic-bezier(0.14, 0.72, 0.18, 1) forwards;
}

.vi-sequence-started .vi-void-stage__ring--one {
	animation: vi-ring-expansion 6.6s 1.3s cubic-bezier(0.12, 0.7, 0.18, 1) forwards;
}

.vi-sequence-started .vi-void-stage__ring--two {
	animation: vi-ring-expansion 7.4s 2.25s cubic-bezier(0.12, 0.7, 0.18, 1) forwards;
}

.vi-sequence-reveal .vi-void-stage,
.vi-sequence-complete .vi-void-stage {
	opacity: 0.72;
	filter: blur(0.45px);
}

.vi-intro {
	position: relative;
	z-index: 2;
	width: min(100%, 68rem);
	text-align: center;
	pointer-events: none;
}

.vi-js .vi-intro > * {
	opacity: 0;
	transform: translateY(0.8rem);
	transition: opacity 1.25s ease, transform 1.25s cubic-bezier(0.18, 0.72, 0.24, 1);
}

.vi-ready .vi-intro {
	pointer-events: auto;
}

.vi-ready .vi-eyebrow {
	opacity: 1;
	transform: translateY(0);
	transition-delay: 0s;
}

.vi-ready .vi-mark {
	opacity: 1;
	transform: translateY(0) scale(1);
	transition-delay: 0.2s;
}

.vi-ready .vi-intro h1 {
	opacity: 1;
	transform: translateY(0);
	transition-delay: 0.45s;
}

.vi-ready .vi-line {
	opacity: 1;
	transform: translateY(0);
	transition-delay: 0.8s;
}

.vi-ready .vi-book {
	opacity: 1;
	transform: translateY(0);
	transition-delay: 1.15s;
}

.vi-eyebrow {
	margin: 0 0 2.5rem;
	color: var(--vi-muted);
	font-size: 0.69rem;
	font-weight: 650;
	letter-spacing: 0.34em;
	text-transform: uppercase;
}

.vi-mark {
	position: relative;
	width: clamp(4.5rem, 9vw, 6.5rem);
	aspect-ratio: 1;
	margin: 0 auto 2.2rem;
	transform: translateY(0.8rem) scale(0.9);
}

.vi-mark__core,
.vi-mark__halo {
	position: absolute;
	inset: 50% auto auto 50%;
	border-radius: 50%;
	transform: translate(-50%, -50%);
}

.vi-mark__core {
	width: 18%;
	aspect-ratio: 1;
	background: #dff3ff;
	box-shadow:
		0 0 0.8rem rgba(183, 227, 255, 0.95),
		0 0 2.5rem rgba(59, 164, 245, 0.85),
		0 0 5rem rgba(31, 115, 191, 0.55);
}

.vi-mark__halo {
	width: 100%;
	aspect-ratio: 1;
	border: 1px solid rgba(116, 196, 255, 0.22);
	box-shadow: inset 0 0 2rem rgba(73, 167, 238, 0.08), 0 0 3rem rgba(42, 137, 211, 0.08);
	animation: vi-breathe 6s ease-in-out infinite;
}

.vi-intro h1 {
	margin: 0;
	font-family: var(--vi-display);
	font-size: clamp(2.75rem, 8vw, 7.25rem);
	font-weight: 400;
	letter-spacing: 0.12em;
	line-height: 0.94;
	text-transform: uppercase;
	text-shadow: 0 0 3rem rgba(80, 169, 236, 0.15);
}

.vi-line {
	margin: clamp(1.5rem, 3vw, 2.35rem) auto 0;
	color: var(--vi-blue-soft);
	font-family: var(--vi-display);
	font-size: clamp(1.05rem, 2.2vw, 1.5rem);
	font-style: italic;
	letter-spacing: 0.04em;
}

.vi-book {
	display: inline-grid;
	gap: 0.15rem;
	min-width: min(100%, 21rem);
	margin-top: clamp(3rem, 7vh, 5.5rem);
	padding: 1.05rem 1.5rem 1.15rem;
	border-top: 1px solid var(--vi-border);
	border-bottom: 1px solid var(--vi-border);
	background: linear-gradient(90deg, transparent, rgba(71, 151, 213, 0.045), transparent);
}

.vi-book span,
.vi-book small {
	color: var(--vi-muted);
	font-size: 0.67rem;
	font-weight: 650;
	letter-spacing: 0.24em;
	text-transform: uppercase;
}

.vi-book strong {
	font-family: var(--vi-display);
	font-size: clamp(1.55rem, 3vw, 2.25rem);
	font-weight: 400;
	letter-spacing: 0.11em;
	text-transform: uppercase;
}

.vi-sequence-skip {
	position: absolute;
	top: 1.15rem;
	right: 1.15rem;
	z-index: 8;
	padding: 0.55rem 0.72rem;
	border: 0;
	background: transparent;
	color: rgba(203, 224, 244, 0.52);
	font: inherit;
	font-size: 0.61rem;
	font-weight: 650;
	letter-spacing: 0.17em;
	text-transform: uppercase;
	cursor: pointer;
	opacity: 0;
	transition: color 180ms ease, opacity 700ms ease;
}

.vi-sequence-started .vi-sequence-skip {
	opacity: 1;
	transition-delay: 1.35s;
}

.vi-sequence-skip:hover,
.vi-sequence-skip:focus-visible {
	color: var(--vi-white);
}

.vi-sequence-skip:focus-visible {
	outline: 1px solid rgba(143, 207, 255, 0.7);
	outline-offset: 0.2rem;
}

.vi-sequence-complete .vi-sequence-skip {
	display: none;
}

.vi-footnote {
	position: absolute;
	right: 1.25rem;
	bottom: 1rem;
	left: 1.25rem;
	z-index: 2;
	margin: 0;
	color: rgba(185, 205, 229, 0.52);
	font-size: 0.66rem;
	letter-spacing: 0.18em;
	text-align: center;
	text-transform: uppercase;
	opacity: 0;
	transform: translateY(0.5rem);
	transition: opacity 1.2s ease 1.5s, transform 1.2s ease 1.5s;
}

.vi-ready .vi-footnote {
	opacity: 1;
	transform: translateY(0);
}

.vi-content-shell {
	width: min(100% - 2rem, 72rem);
	min-height: 100vh;
	margin-inline: auto;
	padding: clamp(5rem, 10vw, 9rem) 0;
}

.vi-entry__header h1 {
	font-family: var(--vi-display);
	font-size: clamp(2.5rem, 7vw, 5.5rem);
	font-weight: 400;
	letter-spacing: 0.06em;
	line-height: 1;
	text-transform: uppercase;
}

.vi-entry__content {
	max-width: 48rem;
	color: #c8d1df;
}

@keyframes vi-core-arrival {
	0% { opacity: 0; transform: translate(-50%, -50%) scale(0.25); }
	8% { opacity: 1; }
	44% { opacity: 1; transform: translate(-50%, -50%) scale(1); }
	72% { opacity: 0.96; transform: translate(-50%, -50%) scale(1.85); }
	100% { opacity: 0.8; transform: translate(-50%, -50%) scale(2.35); }
}

@keyframes vi-bloom-expansion {
	0% { opacity: 0; transform: translate(-50%, -50%) scale(0.006); }
	9% { opacity: 0.9; }
	62% { opacity: 0.72; }
	100% { opacity: 0.42; transform: translate(-50%, -50%) scale(1.08); }
}

@keyframes vi-field-expansion {
	0% { opacity: 0; transform: translate(-50%, -50%) scale(0.008); }
	14% { opacity: 0.42; }
	100% { opacity: 1; transform: translate(-50%, -50%) scale(1.05); }
}

@keyframes vi-ring-expansion {
	0% { opacity: 0; transform: translate(-50%, -50%) scale(0.03); }
	14% { opacity: 0.8; }
	100% { opacity: 0; transform: translate(-50%, -50%) scale(8.8); }
}

@keyframes vi-breathe {
	0%, 100% { opacity: 0.45; transform: translate(-50%, -50%) scale(0.9); }
	50% { opacity: 1; transform: translate(-50%, -50%) scale(1.08); }
}

@media (max-width: 640px) {
	.vi-shell {
		padding-top: 4.5rem;
		padding-bottom: 4.5rem;
	}

	.vi-intro h1 {
		letter-spacing: 0.075em;
	}

	.vi-book {
		width: min(100%, 19rem);
	}

	.vi-sequence-skip {
		top: 0.65rem;
		right: 0.55rem;
	}
}

@media (prefers-reduced-motion: reduce) {
	*,
	*::before,
	*::after {
		animation-duration: 0.01ms !important;
		animation-iteration-count: 1 !important;
		scroll-behavior: auto !important;
		transition-duration: 0.01ms !important;
	}

	.vi-sequence-skip {
		display: none;
	}
}