@import url('https://fonts.googleapis.com/css2?family=Open+Sans:ital,wght@0,300..800;1,300..800&display=swap');

body {
	background-color: #F0F0F0;
	font-family: "Open Sans", sans-serif;
	text-align: center;
}

*::selection {
	background-color: #00BCD4;
	color: white;
}

h1 {
	background-image: linear-gradient(to right, #4CAF50, #4CAF50 40%, #00BCD4 60%);
	background-clip: text;
	color: transparent;
	font-size: 3rem;
	margin-top: 3rem;
	margin-bottom: 1rem;
}

h3 {
	color: #757575;
	font-size: 4rem;
	font-weight: 400;
	margin: 0;
}

p {
	color: #9E9E9E;
	font-size: 0.8rem;
}

section {
	transition: opacity ease-in 400ms;
}

#file-input {
	display: none;
}

#file-drop-area {
	max-width: 355px;
	height: 200px;
	border: 3px dotted #BDBDBD;
	margin: 3rem auto;
	border-radius: 1rem;
	display: flex;
	justify-content: center;
	align-items: center;
	transition: background-color ease-in 200ms;
	cursor: pointer;
}

#file-drop-area span {
	color: #9E9E9E;
}

#file-drop-area:hover, #file-drop-area:focus {
	background-color: #E0E0E0;
	outline: none;
}

button {
	background-image: linear-gradient(to right, #4CAF50, #00BCD4);
	border: none;
	color: white;
	padding: 0.5rem 1rem;
	border-radius: 0.5rem;
	box-shadow: 0 3px 3px rgba(0, 0, 0, 0.1);
	font-weight: bold;
	transition: all ease-in 100ms;
	cursor: pointer;
}

button:hover {
	filter: brightness(1.1);
}

button:active {
	filter: brightness(0.8);
}

button:focus {
	box-shadow: 0 4px 4px rgba(0, 0, 0, 0.2);
	outline: 2px solid black;
}

input, select {
	background-color: white;
	padding: 0.5rem 1rem;
	border-radius: 0.5rem;
	border: 1px solid #BDBDBD;
	box-shadow: 0 3px 3px rgba(0, 0, 0, 0.1);
	transition: all ease-in 100ms;
}

input:focus, select:focus {
	outline: none;
	border: 1px solid #00BCD4;
	box-shadow: 0 4px 4px rgba(0, 0, 0, 0.2);
}

#filesize {
	border-top-right-radius: 0;
	border-bottom-right-radius: 0;
}

#filesize-unit {
	border-top-left-radius: 0;
	border-bottom-left-radius: 0;
	border-left: 1px solid white;
}

#filesize-unit:focus {
	border-left: 1px solid #00BCD4;
}

#compress {
	margin-left: 1rem;
}