:root {
	--accent-color: #3399ff;
	--accent-color-darker: #2465a6;
	--text-color: #3f3f3f;

	--btn-danger-bg: #d34b4b;
	--btn-danger-bg-darker: #b03d3d;
}

html:has(dialog[open]) {
	overflow: hidden;
}

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

*:focus-visible {
	outline: 0.2rem dashed var(--accent-color);
	outline-offset: 0.2rem;

	transition: outline-offset 150ms ease-in-out;
}

body {
	font-family: 'Nunito', sans-serif;
}

button {
	cursor: pointer;
	user-select: none;
	border: none;
}

.app-container {
	display: flex;
	position: relative;
	flex-direction: column;
	padding: 4rem 6rem;
	min-height: 100vh;
}

.btn {
	display: flex;
	align-items: center;
	justify-content: center;
	font-size: 1rem;
	padding: 0.5rem 1.3rem;
	font-weight: 700;
	border-radius: 0.4rem;

	transition: background-color 100ms ease-in-out;
}

.btn-danger {
	color: #ffffff;
	background-color: var(--btn-danger-bg);

	&:hover {
		background-color: var(--btn-danger-bg-darker);
	}
}

.btn-light-danger {
	color: #db6e6e;
	background-color: #edecec; 
}

.title {
	font-size: 4rem;
	color: var(--accent-color);
	font-family: 'Poppins', sans-serif;
}

.books {
	display: flex;
	justify-content: center;
	gap: 2rem;
	padding-top: 3rem;
	flex-wrap: wrap;
}

.book {
	display: flex;
	flex-direction: column;
	padding: 2rem;
	width: 30rem;
	min-height: 15rem;
	border-radius: 1.5rem;
	-webkit-box-shadow: 0.625rem 0.625rem 4.44rem 0.06rem rgba(173,170,173,0.3);
	-moz-box-shadow: 0.625rem 0.625rem 4.44rem 0.06rem rgba(173,170,173,0.3);
	box-shadow: 0.625rem 0.625rem 4.44rem 0.06rem rgba(173,170,173,0.3);
}

.book__title {
	width: 100%;
	display: -webkit-box;
	-webkit-box-orient: vertical;
	-webkit-line-clamp: 1;
	line-clamp: 1;
	overflow: hidden;
}

.book__actions {
	display: flex;
	justify-content: space-between;
	align-items: center;
	width: 100%;
	flex-wrap: wrap;
	gap: 1rem;
}

.book__info {
	display: flex;
	flex-direction: column;
	justify-content: flex-start;
	align-items: flex-start;
	width: 100%;
	flex-grow: 1;
	font-size: 1.2rem;
}

.book-dialog {
	border: none;
	margin: auto;
	padding: 0;
	border-radius: 1rem;

	&::backdrop {
		backdrop-filter: blur(1rem);
	}
}

.book-form {
	display: flex;
	flex-direction: column;
	width: 30rem;
	background-color: #fff;
}

.book-dialog__header {
	display: flex;
	justify-content: space-between;
	align-items: center;
	border-bottom: 1px solid var(--accent-color);
	padding: 1rem;
	color: #ffffff;
	background-color: var(--accent-color);
}

.book-dialog__heading {
	display: flex;
	justify-content: flex-start;
	align-items: center;
	font-size: 1.5rem;
	gap: 0.5rem;
}

.book-dialog__actions {
	display: flex;
	justify-content: flex-end;
	gap: 1rem;
}

.book-dialog__cancel {
	display: flex;
	justify-content: center;
	align-items: center;
	border: none;
	width: 2rem;
	height: 2rem;
	border-radius: 2rem;
	background-color: #ffffff;
	transform: rotate(45deg);

	&:focus-visible {
		outline-color: #ffffff;
	}
}

.book-form__fields {
	display: flex;
	flex-direction: column;
	align-items: flex-start;
	gap: 1rem;
	padding: 2rem 2rem 1rem 2rem;
}

.book-form__field {
	width: 100%;
	padding: 0.625rem;
	font-size: 1rem;
	border: 1px solid rgb(175, 174, 174);
	border-radius: 0.5rem;
	color: var(--text-color);

	&::placeholder {
		color: rgb(184, 183, 183)
	}
}

.label {
	display: flex;
	flex-direction: column;
	align-items: flex-start;
	gap: 0.5rem;
	font-size: 1.1rem;
	width: 100%;
}

.book-form__status {
	display: flex;
	gap: 0.5rem;
	flex-direction: row;
	justify-content: flex-start;
	align-items: stretch;
	transition: outline-offset 150ms ease-in-out;
	user-select: none;

	&:has(.status__native-checkbox:focus-visible) {
		outline: 0.2rem dashed var(--accent-color);
		outline-offset: 0.2rem;
	}
}

.status__native-checkbox {
	appearance: none;

	&:focus-visible {
		outline: none;
	}
}

.status__custom-checkbox {
	position: relative;
	display: block;
	width: 3.2rem;
	height: 1.6rem;
	background-color: rgb(238, 237, 237);
	border-radius: 3.1rem;
	cursor: pointer;
	transition: background-color 200ms ease-in-out;
}

.status__custom-checkbox::before {
	position: absolute;
	content: '';
	width: 1.3rem;
	height: 1.3rem;
	transform: translate(0.15rem, 0.15rem);
	border-radius: 50%;
	background-color: #ffffff;
	transition: background-color 100ms ease-in-out, transform 200ms ease-in-out;
}

.status__native-checkbox:checked ~ .status__custom-checkbox {
	background-color: var(--accent-color);
	&:before {
		background-color: #ffffff;
		transform: translate(1.75rem, 0.15rem);
	}
}

.book-dialog__actions {
	padding: 2rem;
}

.open-dialog-btn {
	position: fixed;
	display: flex;
	justify-content: center;
	align-items: center;
	width: 4.125rem;
	height: 4.125rem;
	right: 3rem;
	bottom: 3rem;
	border-radius: 50%;
	border: none;
	background-color: var(--accent-color);
}

.btn-primary {
	background-color: var(--accent-color);
	color: #ffffff;
}

.fragment {
	margin-bottom: 0.5rem;
}

@media screen and (width <= 43rem) {

	.title {
		font-size: 3rem;
	}

	.book-form {
		width: 80vw;
	}

	.app-container {
		padding: 2rem;
	}
}

@media screen and (width <= 28rem) {

	.title {
		font-size: 2rem;
		text-align: center;
	}

	.app-container {
		padding: 1rem;
	}

	.book__actions {
		justify-content: center;
	}
}

@media (hover:none) {
	.btn-touch {
		outline: none;
	}
}

@media (hover:hover) {
	.open-dialog-btn {
		&:hover {
			background-color: var(--accent-color-darker);
		}
	}

	.btn-primary {
		&:hover {
			background-color: var(--accent-color-darker);
		}
	}
}