.pm-derivative {
	box-sizing: border-box;
	max-width: 100%;
	margin: 1.8rem 0 2.1rem;
	border: 1px solid #d6e1dc;
	border-radius: 8px;
	background: #ffffff;
	color: #17202a;
	box-shadow: 0 14px 34px rgba(15, 23, 42, .07);
	overflow: hidden;
}

.pm-derivative *,
.pm-derivative *::before,
.pm-derivative *::after {
	box-sizing: border-box;
}

.pm-derivative__header {
	display: grid;
	grid-template-columns: minmax(0, 1fr) auto;
	gap: 16px;
	align-items: start;
	padding: 18px 20px 16px;
	border-bottom: 1px solid #e2e8f0;
	background: linear-gradient(180deg, #f8fbfa 0%, #ffffff 100%);
}

.pm-derivative__eyebrow {
	margin: 0 0 5px;
	color: #176b45;
	font-size: .78rem;
	font-weight: 800;
	letter-spacing: 0;
	line-height: 1.2;
	text-transform: uppercase;
}

.pm-derivative__header h2 {
	margin: 0;
	color: #102a43;
	font-size: 1.35rem;
	line-height: 1.25;
	letter-spacing: 0;
}

.pm-derivative__intro {
	margin: 7px 0 0;
	color: #52616f;
	font-size: .96rem;
	line-height: 1.55;
}

.pm-derivative__badge {
	display: inline-flex;
	align-items: center;
	justify-content: center;
	min-height: 30px;
	border: 1px solid #bad8c8;
	border-radius: 999px;
	background: #eff8f3;
	color: #12583a;
	padding: 5px 10px;
	font-size: .78rem;
	font-weight: 800;
	line-height: 1.2;
	white-space: nowrap;
}

.pm-derivative__controls {
	display: grid;
	grid-template-columns: minmax(260px, 1fr) minmax(88px, 120px) minmax(120px, 150px) auto;
	gap: 12px;
	align-items: end;
	padding: 18px 20px 14px;
	background: #ffffff;
}

.pm-derivative__field {
	min-width: 0;
}

.pm-derivative__field label {
	display: block;
	margin-bottom: 6px;
	color: #263b53;
	font-size: .86rem;
	font-weight: 800;
	line-height: 1.25;
}

.pm-derivative__field input {
	display: block;
	width: 100%;
	min-height: 46px;
	border: 1px solid #cbd7e3;
	border-radius: 7px;
	background: #ffffff;
	color: #17202a;
	padding: 10px 12px;
	font: inherit;
	font-size: 16px;
	line-height: 1.35;
	transition: border-color .15s ease, box-shadow .15s ease;
}

.pm-derivative__field--expression input {
	font-family: ui-monospace, "SFMono-Regular", Consolas, "Liberation Mono", monospace;
}

.pm-derivative__field input:focus {
	border-color: #1f7a4f;
	box-shadow: 0 0 0 3px rgba(31, 122, 79, .15);
	outline: 0;
}

.pm-derivative__submit {
	display: inline-flex;
	align-items: center;
	justify-content: center;
	min-width: 118px;
	min-height: 46px;
	border: 1px solid #176b45;
	border-radius: 7px;
	background: #176b45;
	color: #ffffff;
	padding: 10px 16px;
	font: inherit;
	font-weight: 850;
	line-height: 1.25;
	cursor: pointer;
	transition: background-color .15s ease, border-color .15s ease, transform .15s ease;
}

.pm-derivative__submit:hover,
.pm-derivative__submit:focus {
	background: #12583a;
	border-color: #12583a;
	outline: 0;
}

.pm-derivative__submit:active {
	transform: translateY(1px);
}

.pm-derivative__examples {
	display: flex;
	flex-wrap: wrap;
	gap: 8px;
	align-items: center;
	padding: 0 20px 18px;
	background: #ffffff;
}

.pm-derivative__examples > span {
	color: #667085;
	font-size: .82rem;
	font-weight: 800;
	line-height: 1.25;
}

.pm-derivative__examples button {
	min-height: 34px;
	border: 1px solid #d5dee8;
	border-radius: 999px;
	background: #fbfcfd;
	color: #263b53;
	padding: 6px 10px;
	font-family: ui-monospace, "SFMono-Regular", Consolas, "Liberation Mono", monospace;
	font-size: .86rem;
	line-height: 1.25;
	cursor: pointer;
	transition: border-color .15s ease, color .15s ease, background-color .15s ease;
}

.pm-derivative__examples button:hover,
.pm-derivative__examples button:focus {
	border-color: #176b45;
	background: #f0f8f4;
	color: #12583a;
	outline: 0;
}

.pm-derivative__result {
	border-top: 1px solid #e2e8f0;
	background: #fbfcfd;
	padding: 18px 20px 20px;
}

.pm-derivative__result[hidden] {
	display: none;
}

.pm-derivative__result-title {
	margin: 0 0 10px;
	color: #102a43;
	font-size: 1.05rem;
	line-height: 1.3;
	letter-spacing: 0;
}

.pm-derivative__formula {
	margin: 10px 0;
	padding: 12px 14px;
	border: 1px solid #d8e2dc;
	border-radius: 7px;
	background: #ffffff;
	overflow-x: auto;
	overflow-y: hidden;
	-webkit-overflow-scrolling: touch;
}

.pm-derivative__formula .katex-display {
	margin: .2rem 0;
}

.pm-derivative__steps {
	margin: 13px 0 0;
	padding-left: 1.25rem;
	color: #34495e;
	line-height: 1.65;
}

.pm-derivative__steps li + li {
	margin-top: 4px;
}

.pm-derivative__meta {
	display: flex;
	flex-wrap: wrap;
	gap: 8px;
	align-items: center;
	justify-content: space-between;
	margin-top: 14px;
}

.pm-derivative__copy {
	display: inline-flex;
	align-items: center;
	justify-content: center;
	min-height: 36px;
	border: 1px solid #cbd7e3;
	border-radius: 7px;
	background: #ffffff;
	color: #17202a;
	padding: 7px 11px;
	font: inherit;
	font-size: .9rem;
	font-weight: 800;
	line-height: 1.25;
	cursor: pointer;
}

.pm-derivative__copy:hover,
.pm-derivative__copy:focus {
	border-color: #176b45;
	color: #12583a;
	outline: 0;
}

.pm-derivative__note {
	margin: 0;
	color: #667085;
	font-size: .86rem;
	line-height: 1.45;
}

.pm-derivative__loading {
	margin: 0;
	border-left: 4px solid #176b45;
	background: #f0f8f4;
	color: #12583a;
	padding: 10px 12px;
	line-height: 1.5;
}

.pm-derivative__error {
	margin: 0;
	border-left: 4px solid #b42318;
	background: #fff4f2;
	color: #7a271a;
	padding: 10px 12px;
	line-height: 1.5;
}

@media (max-width: 820px) {
	.pm-derivative__header,
	.pm-derivative__controls {
		grid-template-columns: 1fr;
	}

	.pm-derivative__badge {
		justify-self: start;
	}

	.pm-derivative__field--expression,
	.pm-derivative__submit {
		grid-column: 1 / -1;
	}

	.pm-derivative__submit {
		width: 100%;
	}
}

@media (max-width: 520px) {
	.pm-derivative {
		margin: 1.4rem 0 1.8rem;
	}

	.pm-derivative__header,
	.pm-derivative__controls,
	.pm-derivative__examples,
	.pm-derivative__result {
		padding-left: 14px;
		padding-right: 14px;
	}

	.pm-derivative__examples {
		flex-wrap: nowrap;
		overflow-x: auto;
		-webkit-overflow-scrolling: touch;
		scrollbar-width: thin;
	}

	.pm-derivative__examples > span,
	.pm-derivative__examples button {
		flex: 0 0 auto;
	}

	.pm-derivative__examples button {
		max-width: 240px;
		white-space: nowrap;
	}
}

@media (prefers-color-scheme: dark) {
	.pm-derivative,
	.pm-derivative__header,
	.pm-derivative__controls,
	.pm-derivative__examples,
	.pm-derivative__result {
		background: #101b2a;
		border-color: rgba(148, 163, 184, 0.28);
		color: #e2ebf6;
		box-shadow: none;
	}

	.pm-derivative__header h2,
	.pm-derivative__result-title {
		color: #f3f7fb;
	}

	.pm-derivative__intro,
	.pm-derivative__field label,
	.pm-derivative__examples > span,
	.pm-derivative__steps,
	.pm-derivative__note {
		color: #b8c6d8;
	}

	.pm-derivative__badge {
		background: rgba(34, 197, 94, 0.12);
		border-color: rgba(34, 197, 94, 0.32);
		color: #9af0b8;
	}

	.pm-derivative__field input,
	.pm-derivative__formula,
	.pm-derivative__copy,
	.pm-derivative__examples button {
		background: #0d1420;
		border-color: rgba(148, 163, 184, 0.28);
		color: #edf5ff;
	}

	.pm-derivative__field input:focus {
		border-color: rgba(125, 180, 255, 0.72);
		box-shadow: 0 0 0 3px rgba(125, 180, 255, 0.16);
	}

	.pm-derivative__examples button:hover,
	.pm-derivative__examples button:focus,
	.pm-derivative__copy:hover,
	.pm-derivative__copy:focus {
		background: rgba(125, 180, 255, 0.12);
		border-color: rgba(125, 180, 255, 0.52);
		color: #cfe4ff;
	}

	.pm-derivative__submit {
		background: #187046;
		border-color: #187046;
		color: #ffffff;
	}

	.pm-derivative__loading {
		background: rgba(125, 180, 255, 0.10);
		border-color: rgba(125, 180, 255, 0.28);
		color: #cfe4ff;
	}

	.pm-derivative__error {
		background: rgba(239, 68, 68, 0.12);
		border-color: rgba(239, 68, 68, 0.32);
		color: #ffcaca;
	}
}