.gpa-calc {
	background: var(--wp--preset--color--base, #ffffff);
	border: 1px solid var(--wp--preset--color--border, #e2e8f0);
	border-radius: 12px;
	padding: clamp(1rem, 3vw, 2rem);
	margin: 1.5rem 0;
}

.gpa-calc__intro {
	margin-block-start: 0;
	color: var(--wp--preset--color--muted, #4b5563);
}

.gpa-calc__scales {
	display: grid;
	grid-template-columns: 1fr;
	gap: 0.75rem;
	margin-block-end: 1rem;
}

.gpa-field label,
.gpa-label {
	display: block;
	font-size: 0.8125rem;
	font-weight: 600;
	color: var(--wp--preset--color--contrast, #111827);
	margin-block-end: 0.25rem;
}

.gpa-calc select,
.gpa-calc input[type='text'],
.gpa-calc input[type='number'] {
	width: 100%;
	box-sizing: border-box;
	border: 1px solid var(--wp--preset--color--border, #e2e8f0);
	border-radius: 8px;
	padding: 0.6rem 0.75rem;
	font-size: 1rem;
	line-height: 1.4;
	background: #fff;
	color: var(--wp--preset--color--contrast, #111827);
	min-height: 44px;
}

.gpa-scale-note {
	font-size: 0.8125rem;
	color: var(--wp--preset--color--muted, #4b5563);
	background: var(--wp--preset--color--surface, #f1f5f9);
	border-left: 3px solid var(--wp--preset--color--primary, #2563eb);
	padding: 0.6rem 0.75rem;
	border-radius: 0 8px 8px 0;
	margin-block-end: 1rem;
}

.gpa-courses {
	display: grid;
	gap: 0.75rem;
	margin-block-end: 1rem;
}

.gpa-row {
	display: grid;
	grid-template-columns: 1fr;
	gap: 0.5rem;
	padding: 0.75rem;
	border: 1px solid var(--wp--preset--color--border, #e2e8f0);
	border-radius: 10px;
	background: #fcfcfd;
}

.gpa-remove {
	border: 1px solid var(--wp--preset--color--danger, #dc2626);
	background: transparent;
	color: var(--wp--preset--color--danger, #dc2626);
	border-radius: 8px;
	padding: 0.5rem 0.85rem;
	font-size: 0.875rem;
	cursor: pointer;
	min-height: 40px;
}

.gpa-remove:disabled {
	opacity: 0.4;
	cursor: not-allowed;
}

.gpa-courses-hint {
	font-size: 0.8125rem;
	color: var(--wp--preset--color--muted, #4b5563);
	min-height: 1.25em;
	margin-block: 0 0.5rem;
}

.gpa-actions {
	display: flex;
	flex-wrap: wrap;
	gap: 0.6rem;
	margin-block-end: 1rem;
}

.gpa-btn {
	border: 0;
	border-radius: 8px;
	padding: 0.65rem 1.1rem;
	font-size: 1rem;
	font-weight: 600;
	cursor: pointer;
	min-height: 44px;
}

.gpa-btn--primary {
	background: var(--wp--preset--color--primary, #2563eb);
	color: #ffffff;
}

.gpa-btn--primary:hover {
	background: var(--wp--preset--color--primary-dark, #1e40af);
}

.gpa-btn--secondary {
	background: var(--wp--preset--color--surface, #f1f5f9);
	color: var(--wp--preset--color--contrast, #111827);
}

.gpa-btn--secondary:hover {
	background: #e2e8f0;
}

.gpa-btn--ghost {
	background: transparent;
	color: var(--wp--preset--color--muted, #4b5563);
	text-decoration: underline;
	text-underline-offset: 2px;
}

.gpa-btn:disabled {
	opacity: 0.5;
	cursor: not-allowed;
}

.gpa-result {
	margin-block-start: 0.25rem;
}

.gpa-errors {
	color: var(--wp--preset--color--danger, #dc2626);
	background: #fef2f2;
	border: 1px solid #fecaca;
	border-radius: 8px;
	padding: 0.75rem 1rem 0.75rem 2rem;
}

.gpa-errors li {
	margin-block-end: 0.25rem;
}

.gpa-result__box {
	background: var(--wp--preset--color--surface, #f1f5f9);
	border-radius: 10px;
	padding: 1rem 1.25rem;
}

.gpa-result__gpa {
	font-size: clamp(1.4rem, 4vw, 2rem);
	font-weight: 700;
	color: var(--wp--preset--color--primary, #2563eb);
}

.gpa-result__summary,
.gpa-result__formula,
.gpa-result__note {
	margin-block: 0.5rem;
}

.gpa-result__formula {
	font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
	font-size: 0.85rem;
}

.gpa-result__note {
	font-size: 0.8125rem;
	color: var(--wp--preset--color--muted, #4b5563);
}

.gpa-breakdown {
	width: 100%;
	border-collapse: collapse;
	margin-block-start: 1rem;
	font-size: 0.9rem;
}

.gpa-breakdown th,
.gpa-breakdown td {
	text-align: left;
	border-bottom: 1px solid var(--wp--preset--color--border, #e2e8f0);
	padding: 0.5rem 0.4rem;
}

.gpa-breakdown th {
	font-weight: 600;
}

.gpa-noscript {
	color: var(--wp--preset--color--danger, #dc2626);
}

.gpa-cum__grid {
	display: grid;
	grid-template-columns: 1fr;
	gap: 0.75rem;
	margin-block-end: 0.5rem;
}

.gpa-cum__hint {
	font-size: 0.875rem;
	color: var(--wp--preset--color--muted, #4b5563);
	margin-block: 0.5rem 1rem;
}

@media (min-width: 640px) {
	.gpa-cum__grid {
		grid-template-columns: 1fr 1fr;
	}
}

@media (min-width: 640px) {
	.gpa-calc__scales {
		grid-template-columns: 1fr 1fr;
	}

	.gpa-row {
		grid-template-columns: 1.4fr 1fr 0.8fr auto;
		align-items: end;
		gap: 0.75rem;
	}
}