styles.scss

@import url("https://fonts.googleapis.com/css2?family=Poppins:wght@400;700&display=swap");
* {
	padding: 0;
	margin: 0;
	box-sizing: border-box;
	font-family: "Poppins", sans-serif;
}
@mixin flex($justify, $align) {
	display: flex;
	justify-content: $justify;
	align-items: $align;
}
$background: #f5f5f5;
$background2: #1e1e1e;
// Mobile first approach
body {
	width: 100%;
	height: 100vh;
	background-color: $background;
	padding-top: 80px;
}
header {
	width: 100%;
	height: 80px;
	@include flex(space-between, center);
	border-bottom: 2px solid rgba(255, 0, 0, 0.699);
	padding: 0 20px;
	position: fixed;
	background-color: $background;
	top: 0;
	left: 0;
	right: 0;
	margin: 0 auto;
	z-index: 3;
	.header__left,
	.header__right {
		width: 40px;
		height: 40px;
		@include flex(center, center);
		font-weight: bold;
		color: grey;
	}
	.header__right {
		margin-inline: auto;
		width: 35%;
	}
	.header__left {
		i {
			font-size: 20px;
		}
	}
	.theme__toggle {
		width: 50px;
		height: 20px;
		background-color: black;
		border-radius: 10px;
		position: relative;
		.switch {
			width: 14px;
			height: 14px;
			background-color: white;
			position: absolute;
			border-radius: 50%;
			left: 0;
			top: 0;
			bottom: 0;
			margin: auto 5px;
		}
	}
}
main {
	width: 100%;
	min-height: 80vh;
	height: auto;
	padding: 10px 0;

	#new {
		height: auto;
		width: 100%;
		margin-top: 20px;
		padding-bottom: 20px;
		display: none;
		form {
			width: 100%;
			height: 100%;
			@include flex(space-between, center);
			padding: 0 20px;

			input,
			button {
				width: auto;
				height: 50px;
				border: none;
				display: block;
				border-radius: 5px;
				box-shadow: 2px 2px 9px grey;
			}
			input {
				background: linear-gradient(145deg, #dddddd, #ffffff);
				width: 70%;
				padding: 0 10px;
				&:focus {
					outline: none;
				}
			}
			button {
				width: 25%;
				background: linear-gradient(145deg, #73dddd, #89ffff);
			}
		}
	}

	#todos {
		width: 100%;
		height: auto;
		margin-top: 20px;
		.todo {
			width: 100%;
			height: 50px;
			margin-bottom: 10px;
			@include flex(space-between, center);
			padding: 0 10px;
			.content {
				width: 83%;
				height: 100%;
				background-color: pink;
				@include flex(flex-start, center);
				p {
					color: black;
					opacity: 0.7;
					margin-left: 10px;
					font-size: 14px;
					font-weight: normal;
				}
			}
			.actions {
				width: 15%;
				height: 100%;
				@include flex(space-between, center);
				padding: 0 3px;
				div {
					width: 25px;
					height: 25px;
					@include flex(center, center);
					border-radius: 50%;
					&:hover {
						background-color: rgba(128, 128, 128, 0.747);
						cursor: pointer;
						i {
							opacity: 1;
						}
					}
					i {
						opacity: 0.5;
						font-size: 13px;
					}
					i.fa-trash {
						color: red;
					}
				}
			}
		}
		.noTasks {
			width: 280px;
			height: 280px;
			background-color: pink;
			border-radius: 50%;
			margin: 100px auto;
			@include flex(center, center);
			flex-direction: column;
			color: grey;
			i {
				font-size: 96px;
			}
			p {
				margin-top: 20px;
				text-align: center;
			}
		}
	}

	.plus {
		width: 60px;
		height: 60px;
		border-radius: 50%;
		@include flex(center, center);
		color: grey;
		background-color: pink;
		font-size: 30px;
		font-weight: bold;
		position: fixed;
		bottom: 30px;
		left: 0;
		right: 0;
		margin: 0 auto;
		box-shadow: 2px 2px 5px grey, -2px -2px 5px grey;
	}
}

main,
header {
	max-width: 500px;
	margin: 0 auto;
}

.dark {
	background-color: $background2;
	header {
		background-color: $background2;
		opacity: 1;
		.header__left,
		.header__right {
			color: white;
		}
		.theme__toggle {
			background-color: white;
			.switch {
				background-color: black;
				right: 1px;
				left: auto;
			}
		}
	}
	main {
		#todos {
			.noTasks {
				background-color: white;
				color: black;
			}
			.todo {
				.content {
					background-color: white;
					color: black;
				}
				.actions {
					div {
						&:hover {
							background-color: white;
						}
					}
				}
			}
		}
		.plus {
			background-color: white;
			color: black;
		}
	}
}