style.css

* { 
	margin: 0; 
	padding: 0; 
	box-sizing: border-box; 
} 

body { 
	font-family: "Arial", sans-serif; 
	background: linear-gradient( 
		135deg, 
		#f4fb8f, 
		#ff6b6b
	); 
	display: flex; 
	justify-content: center; 
	align-items: center; 
	height: 100vh; 
	margin: 0; 
} 

.coin-container { 
	background-color: rgba( 
		255, 
		255, 
		255, 
		0.9
	); 
	border-radius: 20px; 
	box-shadow: 0 10px 20px
		rgba(0, 0, 0, 0.3); 
	padding: 2rem; 
	text-align: center; 
	animation: fadeIn 1s ease; 
	width: 80%; 
	max-width: 500px; 
	perspective: 1000px; 
} 

h1 { 
	color: black; 
	font-size: 2.5rem; 
	margin: 0 0 1rem; 
	text-shadow: 2px 2px 4px
		rgba(0, 0, 0, 0.2); 
} 

.coin { 
	width: 150px; 
	height: 150px; 
	border-radius: 50%; 
	overflow: hidden; 
	box-shadow: 0 8px 20px
		rgba(0, 0, 0, 0.2); 
	transition: transform 0.5s 
		ease-in-out; 
	margin: 0 auto; 
	backface-visibility: hidden; 
} 

button { 
	background-color: #4e6bff; 
	color: #fff; 
	border: none; 
	padding: 10px 20px; 
	border-radius: 10px; 
	font-size: 1rem; 
	cursor: pointer; 
	transition: background-color 0.3s 
			ease-in-out, 
		transform 0.2s ease-in-out; 
	width: 100%; 
	margin-top: 20px; 
} 

button:hover { 
	background-image: linear-gradient( 
		45deg, 
		#4e6bff, 
		#ff6b6b
	); 
	transform: scale(1.05); 
} 

.result { 
	margin-top: 20px; 
	font-size: 24px; 
	color: #333; 
	transition: opacity 0.5s ease-in-out; 
	opacity: 0; 
	text-transform: uppercase; 
	font-weight: bold; 
	text-shadow: 1px 1px 2px
		rgba(0, 0, 0, 0.4); 
	letter-spacing: 2px; 
} 

.coin:hover { 
	transform: scale(1.1); 
	transition: transform 0.3s 
		ease-in-out; 
} 

@keyframes spin { 
	0% { 
		transform: rotateY(0deg); 
	} 
	100% { 
		transform: rotateY(360deg); 
	} 
} 

.coin.flip { 
	animation: spin 1s 
		cubic-bezier(0.4, 2.5, 0.6, 0.5); 
} 

.coin img { 
	width: 100%; 
	height: 100%; 
	object-fit: cover; 
	object-position: center; 
	transform: rotateY(0deg); 
} 

.coin-container { 
	background-color: #fff; 
	padding: 20px; 
	border-radius: 10px; 
	box-shadow: 0 4px 10px
		rgba(0, 0, 0, 0.2); 
	transition: transform 0.5s 
		ease-in-out; 
} 

.coin-container:hover { 
	transform: scale(1.02); 
} 

h2 { 
	color: #333; 
	font-size: 24px; 
	margin: 10px 0; 
}