.hc-calculator {
	--hc-accent: #c2410c;
	--hc-border: #d6d3d1;
	--hc-muted: #78716c;
	--hc-bg: #ffffff;
	--hc-soft: #fafaf9;
	--hc-warn-bg: #fff7ed;
	--hc-warn-border: #fdba74;
	max-width: 1100px;
	margin: 0 auto;
	font-size: 15px;
	line-height: 1.45;
	color: inherit;
	box-sizing: border-box;
}
.hc-calculator *, .hc-calculator *::before, .hc-calculator *::after { box-sizing: inherit; }
.hc-header { display: flex; justify-content: space-between; align-items: center; gap: 12px; margin-bottom: 12px; }
.hc-title { margin: 0; }
.hc-card { background: var(--hc-bg); border: 1px solid var(--hc-border); border-radius: 8px; padding: 16px 18px; margin-bottom: 16px; }
.hc-card h3 { margin: 0 0 12px; font-size: 1.15em; }
.hc-card h4 { margin: 18px 0 8px; font-size: 1em; }
.hc-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(230px, 1fr)); gap: 12px 16px; }
.hc-field { display: flex; flex-direction: column; gap: 4px; margin: 0; }
.hc-label { font-size: 0.85em; font-weight: 600; }
.hc-input-wrap { display: flex; align-items: center; gap: 6px; }
.hc-calculator input[type="number"], .hc-calculator input[type="text"], .hc-calculator select {
	width: 100%; min-width: 0; padding: 6px 8px; border: 1px solid var(--hc-border); border-radius: 5px; font: inherit; background: #fff; color: #1c1917;
}
.hc-unit { font-size: 0.85em; color: var(--hc-muted); white-space: nowrap; }
.hc-table-wrap { overflow-x: auto; -webkit-overflow-scrolling: touch; }
.hc-table { width: 100%; border-collapse: collapse; margin: 0 0 8px; font-size: 0.92em; }
.hc-table th, .hc-table td { border-bottom: 1px solid var(--hc-border); padding: 6px 8px; text-align: left; vertical-align: middle; }
.hc-table th { background: var(--hc-soft); font-weight: 600; white-space: nowrap; }
.hc-inputs td { padding: 4px; }
.hc-inputs input[type="number"] { max-width: 120px; }
.hc-num { text-align: right !important; font-variant-numeric: tabular-nums; white-space: nowrap; }
.hc-compact td, .hc-compact th { padding: 4px 8px; }
.hc-total td { font-weight: 700; border-top: 2px solid var(--hc-accent); }
.hc-btn { display: inline-block; padding: 6px 12px; border: 1px solid var(--hc-accent); border-radius: 5px; background: #fff; color: var(--hc-accent); font: inherit; cursor: pointer; }
.hc-btn:hover { background: var(--hc-accent); color: #fff; }
.hc-remove { padding: 2px 9px; font-size: 1.1em; line-height: 1.2; }
.hc-help, .hc-muted { color: var(--hc-muted); font-size: 0.88em; }
.hc-fluid-info { margin-top: 14px; overflow-x: auto; }
.hc-results-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(300px, 1fr)); gap: 16px 24px; }
.hc-results-grid h4 { margin-top: 0; }
.hc-warnings { background: var(--hc-warn-bg); border: 1px solid var(--hc-warn-border); border-radius: 6px; padding: 8px 12px; margin-bottom: 12px; }
.hc-warnings ul { margin: 0; padding-left: 18px; }
.hc-warn-row td { background: var(--hc-warn-bg); }
.hc-notes ul { margin: 0; padding-left: 20px; font-size: 0.9em; }
.hc-notes li { margin-bottom: 4px; }
@media print {
	.hc-btn { display: none !important; }
	.hc-card { break-inside: avoid; border-color: #999; }
}
.hc-table.hc-center th, .hc-table.hc-center td, .hc-table.hc-center td.hc-num { text-align: center !important; }
.hc-circuit-totals { margin-top: 14px; max-width: 520px; }