* {
	box-sizing: border-box;
}

body {
	padding: 1rem;
	margin: 0;
}

#mode-selection {
	margin-top: 0.5rem;
	display: flex;
	flex-direction: column;
	align-items: start;
}

#mode-selection div {
	display: flex;
	flex-direction: row;
	align-items: start;
	justify-content: center;
}

#app {
	width: 100%;
	max-width: 600px;
	display: flex;
	flex-direction: column;
	align-items: center;
	gap: 2rem;
}

#han-wrapper {
	position: relative;
	width: 100%;
	display: flex;
	flex-direction: column;
	gap: 0.5rem;
}

#han-container {
	width: 100%;
	padding: 1rem 1rem 0.5rem 1rem;
	display: grid;
	grid-template-columns: repeat(3, 1fr);
	justify-items: center;
	align-items: center;
	gap: 1rem;
}

.copy-container {
	display: flex;
	justify-content: flex-start;
}

.btn-subtle {
	display: flex;
	align-items: center;
	gap: 0.5rem;
	background: none;
	border: none;
	color: #999;
	cursor: pointer;
	padding: 0.5rem;
	border-radius: 4px;
	transition:
		background-color 0.2s,
		color 0.2s;
	font-size: 0.8rem;
}

.btn-subtle:hover {
	background-color: #f0f0f0;
	color: #333;
}

.han-char {
	display: flex;
	flex-direction: column;
	gap: 1em;
	width: 100%;
	max-width: 100px;
	align-items: center;
}

.han-display {
	font-size: 4rem;
}

.pinyin-input-group {
	display: flex;
	flex-direction: column;
	align-items: center;
	gap: 0.5rem;
}

input[type="text"] {
	width: 100%;
	max-width: 100px;
	font-size: 1.5rem;
	border: 1px solid black;
	border-radius: 1rem;
	padding: 0.5rem 1rem;
}

input.incorrect {
	border-color: red;
}

button {
	cursor: pointer;
}

button.primary {
	font-size: 1rem;
	background-color: black;
	color: white;
	border: 1px solid black;
	border-radius: 2rem;
	padding: 0.5rem 1rem;
	box-shadow: 0 4px 0 #333;
	transition: all 0.1s;
	position: relative;
	top: 0;
}

button.primary:active {
	top: 2px;
	box-shadow: 0 2px 0 #333;
}

button.secondary {
	font-size: 1rem;
	background-color: white;
	color: black;
	border: 1px solid black;
	border-radius: 2rem;
	padding: 0.5rem 1rem;
	box-shadow: 0 4px 0 #ccc;
	transition: all 0.1s;
	position: relative;
	top: 0;
}

button.secondary:active {
	top: 2px;
	box-shadow: 0 2px 0 #ccc;
}

button.btn-link {
	background: none;
	border: none;
	color: #0000ee;
	text-decoration: none;
	padding: 0.5rem 0.75rem;
	font-size: 1rem;
}

button.btn-link:hover {
	text-decoration: underline;
}

button.ok {
	/* TODO: better green color */
	background-color: rgb(0, 124, 80);
	border: 1px solid rgb(0, 124, 80);
}

.actions {
	display: flex;
	flex-direction: column;
	gap: 0.5rem;
}

.btn-group-horiz {
	display: flex;
	flex-direction: row;
	align-items: center;
	gap: 0.5rem;
}

.tones {
	display: flex;
	flex-direction: row;
}

.tones-button {
	font-size: 1.5rem;
	width: 30px;
	color: gray;
	padding: 0.5rem;
	background: white;
	border: 1px solid gray;
	box-shadow: 0 4px 0 #ccc;
	transition: all 0.1s;
	position: relative;
	top: 0;
	margin-bottom: 4px; /* Space for the shadow */
}

.tones-button:active {
	top: 2px;
	box-shadow: 0 2px 0 #ccc;
}

.tones-button + .tones-button {
	/* Remove left border between buttons */
	border-left: none;
}

.tones-button:hover {
	color: black;
}

.tones .tones-button:first-child {
	border-top-left-radius: 0.5rem;
	border-bottom-left-radius: 0.5rem;
}

.tones .tones-button:last-child {
	border-top-right-radius: 0.5rem;
	border-bottom-right-radius: 0.5rem;
}

@media (min-width: 768px) {
	#app {
		align-items: start;
		max-width: 1000px;
	}

	#han-container {
		grid-template-columns: auto auto auto auto auto;
		padding: 0.75rem;
		justify-items: start;
	}

	.actions {
		flex-direction: row;
		flex-wrap: wrap;
		align-items: center;
		gap: 1rem;
		width: 100%;
	}
}

.hidden {
	display: none;
}