:root {
	--bg: #ffffff;
	--surface: #ffffff;
	--text: #000000;
	--muted: #666666;
	--border: #000000;
	--shadow: #000000;
	--track: #e5e5e5;
}

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

::selection {
	background: var(--text);
	color: var(--bg);
}

body {
	background-color: var(--bg);
	color: var(--text);
	display: flex;
	flex-direction: column;
	align-items: center;
	min-height: 100svh;
	padding: 2rem;
	font-family: "JetBrains Mono", monospace;
}

h1,
h2,
h3,
h4,
h5,
h6 {
	font-family: "Inter", sans-serif;
	overflow-wrap: break-word;
}

::-webkit-scrollbar {
	width: 8px;
	height: 8px;
}

::-webkit-scrollbar-track {
	background: var(--bg);
	border-left: 2px solid var(--track);
}

::-webkit-scrollbar-thumb {
	background: var(--text);
}

header,
main,
footer {
	width: 100%;
	max-width: 1200px;
}

main {
	display: grid;
	grid-template-columns: repeat(3, minmax(0, 1fr));
	gap: 2rem;
	margin-bottom: 2rem;
}

.navbar {
	border: 2px solid var(--border);
	padding: 1.5rem;
	display: flex;
	justify-content: space-between;
	align-items: center;
	margin-bottom: 2rem;
}

h1 {
	font-size: clamp(1.6rem, 3vw, 2.5rem);
	text-transform: uppercase;
	font-weight: 900;
}

.nav-right {
	display: flex;
	align-items: center;
	gap: 1rem;
}

.book-card {
	border: 2px solid var(--border);
	padding: 2rem;
	box-shadow: 6px 6px 0 var(--shadow);
	display: flex;
	flex-direction: column;
	position: relative;
	background: var(--surface);
}

.book-card h2 {
	font-size: 1.75rem;
	text-transform: uppercase;
	margin-bottom: 0.5rem;
	margin-right: 2rem;
}

.book-info {
	display: flex;
	align-items: center;
	gap: 0.5rem;
	color: var(--muted);
	margin-bottom: 0.25rem;
}

.book-info .material-symbols-outlined {
	font-size: 1.2rem;
}

.btn {
	margin-top: 1rem;
	padding: 0.6rem 1rem;
	border: 2px solid var(--border);
	font-weight: 700;
	cursor: pointer;
	text-transform: uppercase;
	font-family: inherit;
	transition:
		background-color 0.15s ease,
		color 0.15s ease;
}

.btn-primary {
	background: var(--text);
	color: var(--bg);
}

.btn-primary:hover {
	background: var(--bg);
	color: var(--text);
}

.btn-secondary {
	background: transparent;
	color: var(--text);
}

.btn-secondary:hover {
	background: var(--text);
	color: var(--bg);
}

#add-book-btn {
	margin-top: 0;
	padding: 0.8rem 1.5rem;
	border: 2px solid var(--border);
	background: var(--text);
	color: var(--bg);
	font-weight: 700;
	cursor: pointer;
	text-transform: uppercase;
	font-family: inherit;
}

#add-book-btn:hover {
	background: var(--bg);
	color: var(--text);
}

.status-btn {
	margin-top: 1rem;
	margin-right: 1rem;
	padding: 0.5rem 1rem;
	border: 1px solid var(--border);
	background: transparent;
	font-weight: 700;
	cursor: pointer;
	text-transform: uppercase;
	font-family: "JetBrains Mono", monospace;
}

.status-btn:hover {
	background: var(--text);
	color: var(--bg);
}

.delete-btn {
	position: absolute;
	top: 1rem;
	right: 1rem;
	padding: 0.5rem;
	margin: 0;
	background: transparent;
	border: none;
	color: var(--text);
	cursor: pointer;
	display: flex;
	align-items: center;
	justify-content: center;
}

.delete-btn:hover {
	background: var(--text);
	color: var(--bg);
}

footer {
	margin-top: auto;
	text-align: center;
	padding: 1.5rem 0 0;
	border-top: 2px solid var(--border);
}

footer a {
	color: var(--text);
	font-weight: 700;
	text-decoration: none;
}

footer a:hover {
	text-decoration: underline;
}

.modal {
	border: none;
	background: transparent;
	margin: auto;
	width: 100%;
	max-width: 450px;
	overflow: visible;
}

.modal::backdrop {
	background: rgb(255 255 255 / 0.4);
	backdrop-filter: blur(8px);
}

.modal-content {
	width: 100%;
}

.modal-card {
	border: 2px solid var(--border);
	padding: 2rem;
	box-shadow: 10px 10px 0 var(--shadow);
	position: relative;
	background: var(--surface);
}

.modal-card h2 {
	font-size: 1.75rem;
	text-transform: uppercase;
	margin-bottom: 1rem;
}

.form-group {
	display: flex;
	flex-direction: column;
	margin-bottom: 1rem;
}

.form-group label {
	font-weight: 700;
	margin-bottom: 0.5rem;
	display: flex;
	align-items: center;
	gap: 0.5rem;
}

.form-group label .material-symbols-outlined,
.form-checkbox label .material-symbols-outlined {
	font-size: 1.2rem;
	color: var(--text);
}

.form-group input {
	padding: 0.5rem;
	border: 2px solid var(--border);
	font-family: inherit;
	font-size: 1rem;
}

.form-checkbox {
	display: flex;
	align-items: center;
	gap: 0.5rem;
	margin-bottom: 1.5rem;
	font-weight: 700;
}

.form-checkbox label {
	display: flex;
	align-items: center;
	gap: 0.5rem;
}

.form-checkbox input {
	width: 1.2rem;
	height: 1.2rem;
	accent-color: var(--text);
}

#submit-book-btn {
	width: 100%;
	border: 2px solid var(--border);
	background: var(--text);
	color: var(--bg);
	padding: 0.8rem;
	font-weight: 700;
	cursor: pointer;
	text-transform: uppercase;
	font-family: inherit;
}

#submit-book-btn:hover {
	background: var(--bg);
	color: var(--text);
}

button:focus-visible,
input:focus-visible {
	outline: 3px solid var(--text);
	outline-offset: 2px;
}

@media (max-width: 980px) {
	main {
		grid-template-columns: repeat(2, minmax(0, 1fr));
	}
}

@media (max-width: 700px) {
	body {
		padding: 1rem;
	}

	.navbar {
		flex-direction: column;
		align-items: flex-start;
		gap: 1rem;
	}

	main {
		grid-template-columns: 1fr;
		gap: 1rem;
	}

	.book-card,
	.modal-card {
		padding: 1.25rem;
	}
}