/*
 * The Chungus scene. A full-screen 3D canvas sits behind a grid that flanks
 * him with the cards. Phases accumulate as classes on `.chungus` (is-old,
 * is-walk, is-speak, is-raise, is-charge, is-snap, is-dust, is-new), so each
 * rule below reads "from this phase onwards".
 */

body.chungus-open {
	overflow: hidden;
}

/* The top-bar button borrows the theme toggle's size; only the icon is its own. */
.topbar__chungus svg {
	width: 1.25rem;
	height: 1.25rem;
}

/* ---- Stage --------------------------------------------------------- */

.chungus {
	--card: clamp(84px, 8.5vw, 118px);
	--app-card: clamp(124px, 11vw, 150px);
	position: fixed;
	inset: 0;
	z-index: 100;
	overflow: hidden;
	color: var(--ink);
	background: radial-gradient(90% 70% at 50% 85%, var(--desk-lit), var(--desk) 75%);
	animation: chungus-fade 300ms ease both;
}

.chungus__world,
.chungus__world canvas {
	position: absolute;
	inset: 0;
	display: block;
	width: 100%;
	height: 100%;
}

.chungus__stage {
	position: absolute;
	inset: 0;
	z-index: 1;
	display: grid;
	grid-template:
		'head head head' auto
		'left . right' 1fr
		'foot foot foot' auto / 1fr minmax(300px, 40vw) 1fr;
	padding: clamp(1.5rem, 5vh, 3.5rem) clamp(16px, 4vw, 4rem) clamp(1rem, 3vh, 2rem);
	pointer-events: none;
}

.chungus.is-thud .chungus__stage {
	animation: chungus-thud 200ms ease-out;
}

.chungus__head {
	grid-area: head;
	display: grid;
	justify-items: center;
	text-align: center;
}

.chungus__eyebrow,
.chungus__title {
	margin: 0;
	transition:
		opacity 500ms ease,
		transform 500ms ease;
}

.chungus__eyebrow {
	grid-area: 1 / 1;
	font-size: 0.8rem;
	font-weight: 700;
	letter-spacing: 0.14em;
	text-transform: uppercase;
	color: var(--ink-soft);
}

.chungus__title {
	grid-area: 2 / 1;
	margin-top: 0.4rem;
	font-size: clamp(1.8rem, 4.5vw, 3.2rem);
	font-weight: 900;
	letter-spacing: -0.02em;
}

.chungus [data-new],
.chungus.is-dust [data-old] {
	opacity: 0;
	transform: translateY(0.5rem);
}

.chungus.is-new [data-new] {
	opacity: 1;
	transform: none;
	transition-delay: 300ms;
}

.chungus__side {
	display: grid;
	align-content: center;
	transition: opacity 400ms ease;
}

.chungus__head {
	transition: opacity 400ms ease;
}

.chungus__side--left {
	grid-area: left;
	justify-items: end;
}

.chungus__side--right {
	grid-area: right;
	justify-items: start;
}

.chungus__list {
	grid-area: 1 / 1;
	display: flex;
	flex-direction: column;
	align-items: center;
	gap: clamp(0.8rem, 2.5vh, 1.5rem);
	margin: 0;
	padding: 0;
	list-style: none;
}

/* ---- The suite being snapped ---------------------------------------- */

.chungus__card {
	container-type: inline-size;
	position: relative;
	width: var(--card);
	aspect-ratio: 1;
	border-radius: 22%;
	color: #fff;
	background: var(--c);
	box-shadow: 0 12px 26px -12px rgba(0, 0, 0, 0.55);
	opacity: 0;
	transform: translateY(1rem) scale(0.9);
}

.chungus.is-old .chungus__card {
	animation: chungus-pop 450ms cubic-bezier(0.3, 1.4, 0.5, 1) calc(var(--i) * 90ms) forwards;
}

.chungus__letter,
.chungus__name {
	position: absolute;
	left: 50%;
	transform: translate(-50%, -50%);
	white-space: nowrap;
}

.chungus__letter {
	top: 44%;
	font-size: 42cqw;
	font-weight: 800;
	line-height: 1;
}

.chungus__name {
	top: 80%;
	font-size: 12cqw;
	font-weight: 600;
}

.chungus__lock {
	position: absolute;
	top: -8px;
	right: -8px;
	display: grid;
	place-items: center;
	width: 26px;
	height: 26px;
	border-radius: 50%;
	color: #2a1a00;
	background: #ffd23f;
	box-shadow: 0 2px 6px rgba(0, 0, 0, 0.35);
}

.chungus__lock svg {
	width: 14px;
}

.chungus__card.is-dust {
	visibility: hidden;
}

/* ---- The open-source suite: every card the same size ---------------- */

.chungus__list--new {
	visibility: hidden;
}

.chungus.is-new .chungus__list--new {
	visibility: visible;
}

.chungus__app {
	box-sizing: border-box;
	display: flex;
	flex-direction: column;
	align-items: center;
	justify-content: center;
	gap: 0.45rem;
	width: var(--app-card);
	height: var(--app-card);
	border-radius: 20px;
	color: var(--ink);
	text-decoration: none;
	background: var(--surface);
	box-shadow:
		inset 0 0 0 1.5px var(--line),
		0 14px 30px -16px rgba(0, 0, 0, 0.5);
	opacity: 0;
	transform: translateY(1.5rem) scale(0.85);
	pointer-events: auto;
}

.chungus.is-new .chungus__app {
	animation: chungus-rise 650ms cubic-bezier(0.3, 1.5, 0.5, 1) calc(400ms + var(--i) * 140ms)
		forwards;
}

a.chungus__app:hover {
	box-shadow:
		inset 0 0 0 1.5px var(--app),
		0 0 1.5rem -0.3rem var(--app);
}

.chungus__app .app-icon {
	width: 50px;
	height: 50px;
}

.chungus__app-name {
	font-weight: 700;
}

.chungus__app--off {
	color: var(--ink-soft);
}

/* ---- Caption, actions, close ---------------------------------------- */

.chungus__foot {
	grid-area: foot;
	display: grid;
	justify-items: center;
	gap: 0.9rem;
	text-align: center;
}

.chungus__caption {
	min-height: 1.6em;
	margin: 0;
	padding: 0.25rem 0.8rem;
	border-radius: 999px;
	font-size: 1.15rem;
	font-style: italic;
	color: var(--ink);
	background: color-mix(in srgb, var(--desk) 70%, transparent);
}

.chungus__caption:empty {
	visibility: hidden;
}

.chungus__actions {
	display: flex;
	flex-wrap: wrap;
	justify-content: center;
	gap: 0.75rem;
	visibility: hidden;
	opacity: 0;
	transition:
		opacity 400ms ease 1.2s,
		visibility 0s linear 1.2s;
}

.chungus.is-new .chungus__actions {
	visibility: visible;
	opacity: 1;
	pointer-events: auto;
}

.chungus__actions .button--page {
	border: 0;
	font: inherit;
	font-weight: 700;
	background: var(--surface);
	cursor: pointer;
}

.chungus__close {
	position: absolute;
	top: 12px;
	right: 12px;
	z-index: 4;
	width: 40px;
	height: 40px;
	border: 0;
	border-radius: 50%;
	font: inherit;
	font-size: 1.5rem;
	line-height: 1;
	color: var(--ink);
	background: var(--line);
	cursor: pointer;
}

/* ---- Speech, snap, flash, dust -------------------------------------- */

.chungus__bubble {
	position: absolute;
	z-index: 2;
	margin: 0;
	padding: 0.7rem 1rem;
	border-radius: 16px;
	font-weight: 800;
	white-space: nowrap;
	color: var(--paper-ink);
	background: var(--paper);
	box-shadow: 0 8px 20px -8px rgba(0, 0, 0, 0.5);
	opacity: 0;
	transform: translate(calc(-100% - 16px), -50%) scale(0.7);
	transform-origin: 100% 50%;
	transition:
		opacity 200ms ease,
		transform 300ms cubic-bezier(0.3, 1.6, 0.5, 1);
}

.chungus__bubble::after {
	content: '';
	position: absolute;
	top: 50%;
	right: -16px;
	margin-top: -9px;
	border: 9px solid transparent;
	border-left-color: var(--paper);
}

.chungus.is-speak:not(.is-raise) .chungus__bubble {
	opacity: 1;
	transform: translate(calc(-100% - 16px), -50%);
}

.chungus__snap {
	position: absolute;
	z-index: 2;
	font-size: clamp(2.6rem, 8vw, 6rem);
	font-weight: 900;
	font-style: italic;
	color: #ffd23f;
	text-shadow:
		0 4px 0 #9c6a10,
		0 0 30px rgba(255, 196, 64, 0.85);
	opacity: 0;
	pointer-events: none;
}

.chungus.is-snap .chungus__snap {
	animation: chungus-snap 1100ms cubic-bezier(0.2, 1.6, 0.4, 1) forwards;
}

.chungus__flash {
	position: absolute;
	inset: 0;
	z-index: 3;
	background: radial-gradient(circle at 50% 45%, #fff, #fff6d6 40%, rgba(255, 220, 140, 0.6));
	opacity: 0;
	pointer-events: none;
}

.chungus.is-snap .chungus__flash {
	animation: chungus-flash 1100ms ease-out;
}

.chungus__dust {
	position: absolute;
	inset: 0;
	z-index: 2;
	width: 100%;
	height: 100%;
	pointer-events: none;
}

/* ---- Small screens: cards in rows above Chungus ---------------------- */

@media (max-width: 760px) {
	.chungus {
		--card: min(17vw, 76px);
		--app-card: min(22vw, 108px);
	}
	.chungus__stage {
		grid-template:
			'head' auto
			'left' auto
			'right' auto
			'.' 1fr
			'foot' auto / minmax(0, 1fr);
		row-gap: 0.6rem;
		padding-top: 3.5rem;
	}
	.chungus__side--left,
	.chungus__side--right {
		justify-items: center;
	}
	.chungus__title {
		font-size: 1.6rem;
	}
	.chungus__bubble {
		transform: translate(-50%, calc(-100% - 16px)) scale(0.7);
		transform-origin: 50% 100%;
	}
	.chungus.is-speak:not(.is-raise) .chungus__bubble {
		transform: translate(-50%, calc(-100% - 16px));
	}
	.chungus__bubble::after {
		top: auto;
		right: auto;
		bottom: -16px;
		left: 50%;
		margin: 0 0 0 -9px;
		border-left-color: transparent;
		border-top-color: var(--paper);
	}
	.chungus__list {
		flex-direction: row;
		gap: 0.5rem;
	}
	.chungus__side {
		padding: 0 0.25rem;
	}
	.chungus__app .app-icon {
		width: 36px;
		height: 36px;
	}
	.chungus__app {
		gap: 0.25rem;
		font-size: 0.85rem;
	}
}

/* ---- Keyframes ------------------------------------------------------ */

@keyframes chungus-fade {
	from {
		opacity: 0;
	}
}
@keyframes chungus-pop {
	to {
		opacity: 1;
		transform: none;
	}
}
@keyframes chungus-rise {
	to {
		opacity: 1;
		transform: none;
	}
}

@keyframes chungus-thud {
	30% {
		translate: 0 5px;
	}
	60% {
		translate: 0 -2px;
	}
}

@keyframes chungus-flash {
	0% {
		opacity: 0;
	}
	20% {
		opacity: 0.5;
	}
	100% {
		opacity: 0;
	}
}

@keyframes chungus-snap {
	0% {
		opacity: 0;
		transform: translate(25%, -60%) scale(0.3) rotate(-12deg);
	}
	30% {
		opacity: 1;
		transform: translate(25%, -60%) scale(1.15) rotate(-6deg);
	}
	75% {
		opacity: 1;
	}
	100% {
		opacity: 0;
		transform: translate(25%, calc(-60% - 30px)) scale(1) rotate(-6deg);
	}
}

@media (prefers-reduced-motion: reduce) {
	.chungus,
	.chungus * {
		animation-duration: 1ms !important;
		transition-duration: 1ms !important;
	}
}