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

* {
	padding: 0;
	margin: 0;
	box-sizing: border-box;
	outline: 0;
	transition: all 0.5s ease;
}

body,
.display {
	display: flex;
}

body {
	height: 100vh;
	width: 100vw;
	justify-content: center;
	align-items: center;
	font-family: sans-serif;
	background-image: url('img/tropical-plant-leaves-dark-background-picjumbo-com.jpg');
	background-repeat: no-repeat;
	background-size: cover;
}

.calculator {
	padding: 45px 30px 30px;
	border-radius: 10px;
	background: linear-gradient(220deg, #1722209e 30%, #252b286b 70%);
	backdrop-filter: blur(7px);
	box-shadow: 0 0 30px #000;
}

.display {
	text-align: end;
	padding: 8px 5px;
	width: fit-content;
	max-width: 300px;
	font-size: 30px;
	margin-bottom: 30px;
	background-color: #2a373482;
	color: #f8fafd;
	border-radius: 7px;
}

.buttons {
	display: grid;
	grid-template-columns: repeat(4, 1fr);
	align-items: center;
	gap: 15px;
}

.btn {
	justify-self: center;
	height: 60px;
	width: 60px;
	border-radius: 30px;
	font-size: 20px;
	cursor: pointer;
	transition: all 200ms ease;
	box-shadow: -1px 2px 4px #070d0a9d;
	border: 1px solid #5c787118;
}

.btn:hover {
	transform: scale(1.1);
}

.btn:active {
	box-shadow: 0 0 10px #f89090c9;
}

.btn-equal {
	height: 130px;
	grid-row: 4/6;
	grid-column: 4;
	background-color: #2a3f2cc1;
	color: #f8fafb
}

.clean {
	background-color: #512e37da;
	color: #fb3f4b;
}

.btn-number,
.dot {
	background: linear-gradient(245deg, #f0faf81f 10%, #2e4f5eb5 70%);
	color: #f8fafb;
}

.btn-operator,
.negative {
	background-color: #432d5391;
	color: #c397c1;
}