/**
 * NHS Calculator — general calculator styles.
 * Desktop: input + keypad left, result panel right.
 * Mobile: single column, result directly below, large tap targets.
 */

.nhsc-calc {
	display: grid;
	grid-template-columns: 1fr 280px;
	gap: 16px;
	background: #fff;
	border: 1px solid var(--nhsc-line);
	border-radius: 14px;
	box-shadow: var(--nhsc-shadow);
	padding: 18px;
	max-width: 860px;
	margin: 8px 0 18px;
}

.nhsc-calc-input { display: flex; flex-direction: column; gap: 10px; min-width: 0; }

.nhsc-calc-screen {
	font-size: 1.3rem;
	text-align: right;
	letter-spacing: .02em;
}

.nhsc-calc-keys {
	display: grid;
	grid-template-columns: repeat(4, 1fr);
	gap: 8px;
}

.nhsc-key {
	min-height: 46px;
	font-size: 1.12rem;
	font-weight: 700;
	font-variant-numeric: tabular-nums;
	border: 1px solid var(--nhsc-line);
	background: #fff;
	color: var(--nhsc-ink);
	border-radius: 10px;
	cursor: pointer;
	transition: background .12s ease, border-color .12s ease, transform .05s ease;
	-webkit-tap-highlight-color: transparent;
	touch-action: manipulation;
	user-select: none;
}

.nhsc-key:hover { background: var(--nhsc-blue-bg); }
.nhsc-key:active { transform: translateY(1px); }

.nhsc-key:focus-visible {
	outline: 2px solid var(--nhsc-teal);
	outline-offset: 2px;
	border-color: var(--nhsc-teal);
}

.nhsc-key[data-key="cls"] { background: #FDE9E7; color: var(--nhsc-danger); border-color: #F3C9C4; }
.nhsc-key[data-key="del"] { background: var(--nhsc-blue-bg); color: var(--nhsc-blue-d); font-size: 1.3rem; }
.nhsc-key[data-key="="] {
	grid-column: span 2;
	background: var(--nhsc-blue);
	color: #fff;
	border-color: var(--nhsc-blue);
}

.nhsc-key[data-key="="]:hover { background: var(--nhsc-blue-d); }
.nhsc-key[data-key="="]:focus-visible { outline-color: var(--nhsc-teal); }

.nhsc-calc-error {
	min-height: 1.4em;
	margin: 0;
	color: var(--nhsc-danger);
	font-weight: 600;
	font-size: .92rem;
}

.nhsc-calc-result {
	background: var(--nhsc-blue-bg);
	border: 1px solid var(--nhsc-line);
	border-radius: 12px;
	display: flex;
	flex-direction: column;
	justify-content: center;
	align-items: center;
	text-align: center;
	padding: 18px 14px;
	min-height: 150px;
}

.nhsc-calc-result-label {
	margin: 0 0 6px;
	font-size: .82rem;
	font-weight: 700;
	letter-spacing: .08em;
	text-transform: uppercase;
	color: var(--nhsc-mut);
}

.nhsc-calc-result-value {
	margin: 0;
	font-size: clamp(1.9rem, 4vw, 2.6rem);
	font-weight: 800;
	color: var(--nhsc-blue);
	font-variant-numeric: tabular-nums;
	word-break: break-word;
	max-width: 100%;
}

@media (max-width: 760px) {
	.nhsc-calc {
		grid-template-columns: 1fr;
		padding: 14px;
	}

	.nhsc-key { min-height: 52px; font-size: 1.2rem; }

	.nhsc-calc-result {
		min-height: 96px;
		order: 2;
		margin-top: 2px;
	}
}