:root {
	--bg-top: #f4a259;
	--bg-mid: #e97840;
	--bg-bottom: #9c3f2f;
	--text: #0f0f10;
	--white: #ffffff;
	--card: rgba(255, 255, 255, 0.9);
	--muted: rgba(255, 255, 255, 0.8);
	--shadow: rgba(0, 0, 0, 0.25);
	--primary: #ff4d6d;
}

* {
	box-sizing: border-box;
}

html, body {
	height: 100%;
}

body {
	margin: 0;
	font-family: "Poppins", system-ui, -apple-system, Segoe UI, Roboto, Helvetica, Arial, "Apple Color Emoji", "Segoe UI Emoji";
	color: var(--white);
	background:
		linear-gradient(135deg,
			#ff3b3b 0%,
			#ff8c00 16%,
			#ffd300 32%,
			#00c853 48%,
			#00bcd4 64%,
			#3d5afe 80%,
			#a000c8 100%);
	background-attachment: fixed;
}

/* Topbar */
.topbar {
	position: sticky;
	top: 0;
	padding: 16px 20px;
	z-index: 20;
}
.topbar__inner {
	max-width: 1200px;
	margin: 0 auto;
	background: var(--card);
	border-radius: 999px;
	padding: 10px 14px;
	display: flex;
	align-items: center;
	justify-content: space-between;
	box-shadow: 0 6px 24px var(--shadow);
}
.brand {
	display: flex;
	align-items: center;
	gap: 10px;
}
.brand__logo {
	width: 36px;
	height: 36px;
	border-radius: 50%;
	background: #ffe7ef;
	display: grid;
	place-items: center;
	font-size: 18px;
	box-shadow: inset 0 0 0 2px #ffb3c1;
}
.brand__logo picture,
.brand__logo img {
	width: 100%;
	height: 100%;
	display: block;
	border-radius: 50%;
	object-fit: cover;
}
.brand__name {
	font-weight: 800;
	letter-spacing: 1px;
	color: #222;
}
.brand__badge {
	display: inline-flex;
	align-items: center;
	justify-content: center;
	padding: 4px 8px;
	border-radius: 999px;
	font-size: 14px;
	box-shadow: 0 2px 8px var(--shadow);
	background: linear-gradient(135deg,#ff3b3b,#ff8c00,#ffd300,#00c853,#00bcd4,#3d5afe,#a000c8);
	color: #fff;
}
.nav {
	display: flex;
	align-items: center;
	gap: 10px;
}
.nav__link {
	text-decoration: none;
	color: #333;
	font-weight: 700;
	padding: 10px 14px;
	border-radius: 999px;
}
.btn {
	border: 0;
	border-radius: 999px;
	padding: 10px 16px;
	font-weight: 800;
	cursor: pointer;
}
.btn--primary {
	background: linear-gradient(90deg,#ff3b3b,#ff8c00,#ffd300,#00c853,#00bcd4,#3d5afe,#a000c8);
	background-size: 200% 100%;
	color: #fff;
	box-shadow: 0 6px 16px rgba(0, 0, 0, 0.25);
	text-decoration: none;
}
.btn--primary:hover {
	animation: rainbowShift 6s linear infinite;
}
.icon-btn {
	border: 0;
	background: #fff;
	width: 36px;
	height: 36px;
	border-radius: 50%;
	display: grid;
	place-items: center;
	cursor: pointer;
	box-shadow: 0 2px 8px var(--shadow);
	color: #333;
	text-decoration: none;
}
.icon-btn picture,
.icon-btn img {
	width: 18px;
	height: 18px;
	display: block;
	object-fit: contain;
}

/* Hero */
.hero {
	max-width: 1200px;
	margin: 40px auto;
	padding: 0 20px;
	display: grid;
	grid-template-columns: 1.1fr 0.9fr;
	gap: 24px;
	align-items: center;
}
.hero__title {
	font-family: "Luckiest Guy", system-ui;
	font-size: clamp(44px, 8vw, 80px);
	line-height: 0.95;
	margin: 0 0 14px 0;
	color: #fff;
	-webkit-text-stroke: 2px rgba(0,0,0,0.85);
	text-shadow:
		0 2px 0 rgba(0,0,0,0.3),
		0 4px 0 rgba(0,0,0,0.3),
		0 6px 8px rgba(0,0,0,0.25);
}
.hero__line {
	margin: 8px 0;
	font-weight: 600;
}
.hero__line--muted {
	color: var(--muted);
}

/* Contract address */
.ca {
	margin-top: 26px;
	background: var(--card);
	border-radius: 999px;
	display: grid;
	grid-template-columns: auto 1fr auto;
	align-items: center;
	gap: 12px;
	padding: 10px 12px;
	box-shadow: 0 10px 30px var(--shadow);
	max-width: 720px;
}
.ca__badge {
	background: #ffe9a8;
	color: #5a3d00;
	font-weight: 900;
	border-radius: 999px;
	padding: 8px 14px;
	letter-spacing: 1px;
	box-shadow: inset 0 0 0 2px #ffcf66;
}
.ca__input {
	border: 0;
	outline: 0;
	background: transparent;
	font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, "Liberation Mono", "Courier New", monospace;
	font-size: 14px;
	color: #333;
}
.ca__copy {
	border: 0;
	background: #fff;
	width: 42px;
	height: 42px;
	border-radius: 50%;
	display: grid;
	place-items: center;
	cursor: pointer;
	color: #333;
	box-shadow: 0 2px 8px var(--shadow);
}

/* Art circle (right) */
.hero__art {
	display: grid;
	place-items: center;
}
.art-circle {
	position: relative;
	width: min(460px, 75vw);
	aspect-ratio: 1 / 1;
	border-radius: 50%;
	background: radial-gradient(circle at 30% 30%, rgba(255,255,255,0.9), rgba(255,255,255,0.75) 40%, rgba(255,255,255,0.6) 100%);
	box-shadow:
		inset 0 0 0 10px rgba(255,255,255,0.85),
		0 10px 40px rgba(0,0,0,0.35);
	display: grid;
	place-items: center;
	overflow: hidden; /* clip children to outer circle */
}
.art-circle::before {
	content: "";
	position: absolute;
	inset: -12px;
	border-radius: 50%;
	background: conic-gradient(#ff3b3b, #ff8c00, #ffd300, #00c853, #00bcd4, #3d5afe, #a000c8, #ff3b3b);
	filter: blur(6px);
	z-index: 0;
	animation: spin 18s linear infinite;
}
.art-circle__inner {
	position: static; /* allow absolutely positioned overlay to anchor to parent */
	width: 84%;
	height: 84%;
	border-radius: 50%;
	background: conic-gradient(from 0deg, #ffe3ec, #e6fff2, #fff8cc, #e9e9ff, #ffe3ec);
	display: grid;
	place-items: center;
	overflow: visible; /* let overlay exceed inner circle */
	box-shadow: inset 0 0 0 6px rgba(0,0,0,0.05);
}
.art-video {
	width: 100%;
	height: 100%;
	object-fit: cover;
	display: block;
	pointer-events: none;
}
.art-circle__img {
	position: absolute;
	inset: 0;
	width: 100%;
	height: 100%;
	object-fit: cover;
	display: block;
	pointer-events: none;
	z-index: 2;
}
.art-center__img {
	position: absolute;
	top: 50%;
	left: 50%;
	transform: translate(-50%, -50%);
	width: 42%;
	height: auto;
	object-fit: contain;
	pointer-events: none;
	z-index: 3;
}
.mute-toggle {
	position: absolute;
	right: 12px;
	bottom: 12px;
	border: 0;
	background: #ffffff;
	width: 42px;
	height: 42px;
	border-radius: 50%;
	display: grid;
	place-items: center;
	cursor: pointer;
	color: #333;
	box-shadow: 0 2px 8px var(--shadow);
	z-index: 4; /* above overlay image */
}
.sticker {
	position: absolute;
	font-size: clamp(28px, 6vw, 48px);
	user-select: none;
}
.sticker:nth-child(1) { top: 12%; left: 18%; transform: rotate(-12deg); }
.sticker:nth-child(2) { top: 24%; right: 16%; transform: rotate(8deg); }
.sticker:nth-child(3) { bottom: 18%; left: 22%; transform: rotate(6deg); }
.sticker:nth-child(4) { bottom: 24%; right: 18%; transform: rotate(-10deg); }
.sticker:nth-child(5) { top: 42%; left: 46%; transform: translate(-50%, -50%) rotate(0deg); font-size: clamp(34px, 7vw, 56px); }

/* Footer */
.footer {
	margin: 60px 0 30px;
}
.footer__inner {
	max-width: 1200px;
	margin: 0 auto;
	padding: 0 20px;
	color: rgba(255,255,255,0.9);
}
.footer a {
	color: #fff;
	font-weight: 600;
	text-decoration: underline;
	text-underline-offset: 3px;
}

/* Responsive */
@media (max-width: 980px) {
	.hero {
		grid-template-columns: 1fr;
		gap: 36px;
	}
	.hero__art {
		order: -1;
	}
}

/* Carousel */
.carousel {
	max-width: 1200px;
	margin: 10px auto 0;
	padding: 0 20px 10px;
}
.carousel__inner {
	position: relative;
}
.carousel__viewport {
	overflow-x: auto;
	scroll-snap-type: x mandatory;
	-webkit-overflow-scrolling: touch;
	-ms-overflow-style: none;
	scrollbar-width: none;
}
.carousel__viewport::-webkit-scrollbar {
	display: none;
}
.carousel__track {
	display: flex;
	gap: 24px;
	padding: 12px 8px 6px;
}
.carousel__item {
	flex: 0 0 auto;
	width: min(320px, 80vw);
	aspect-ratio: 1 / 1;
	border-radius: 22px;
	overflow: hidden;
	box-shadow: 0 10px 26px rgba(0,0,0,0.35);
	background:
		linear-gradient(#ffffff,#ffffff) padding-box,
		conic-gradient(#ff3b3b, #ff8c00, #ffd300, #00c853, #00bcd4, #3d5afe, #a000c8, #ff3b3b) border-box;
	border: 4px solid transparent;
	scroll-snap-align: center;
}
.carousel__item img {
	width: 100%;
	height: 100%;
	object-fit: cover;
	display: block;
}
.carousel__btn {
	position: absolute;
	top: 50%;
	transform: translateY(-50%);
	border: 0;
	background: #fff;
	width: 42px;
	height: 42px;
	border-radius: 50%;
	display: grid;
	place-items: center;
	cursor: pointer;
	color: #333;
	box-shadow: 0 2px 8px var(--shadow);
	z-index: 5;
}
.carousel__btn--prev { left: -4px; }
.carousel__btn--next { right: -4px; }

@keyframes spin {
	to { transform: rotate(360deg); }
}
@keyframes rainbowShift {
	0% { background-position: 0% 50%; }
	100% { background-position: 200% 50%; }
}