/*!
 * Gear Ratio Calculator — module CSS (e2z-grc- prefix).
 * Color scheme (spec): Primary #475569 (steel gray), Secondary #1E293B,
 * Accent #EAB308 (safety yellow), BG #F8FAFC.
 * Scope: .e2z-tool-gear-ratio-calculator (framework shortcode wrapper).
 */

.e2z-tool-gear-ratio-calculator,
.e2z-tool-gear-ratio-calculator *,
.e2z-tool-gear-ratio-calculator *::before,
.e2z-tool-gear-ratio-calculator *::after {
	box-sizing: border-box;
}

.e2z-tool-gear-ratio-calculator .e2z-grc-container {
	font-family: 'Inter', 'Segoe UI', system-ui, -apple-system, sans-serif;
	line-height: 1.5;
	color: #1E293B;
	width: 100%;
	margin: 0 auto;
	background: #F8FAFC;
	border-radius: 12px;
	box-shadow: 0 4px 20px rgba(30, 41, 59, 0.10);
	overflow: hidden;
}

/* Header */
.e2z-tool-gear-ratio-calculator .e2z-grc-header {
	padding: 24px 16px;
	background: linear-gradient(135deg, #475569, #1E293B);
	color: #fff;
	text-align: center;
	border-bottom: 4px solid #EAB308;
}
.e2z-tool-gear-ratio-calculator .e2z-grc-title {
	font-size: 1.8rem;
	font-weight: 700;
	margin: 0 0 4px;
	color: #fff;
}
.e2z-tool-gear-ratio-calculator .e2z-grc-subtitle {
	font-size: 0.9rem;
	opacity: 0.85;
	margin: 0;
}

/* Layout */
.e2z-tool-gear-ratio-calculator .e2z-grc-main-grid {
	display: flex;
	flex-direction: column;
	gap: 20px;
	padding: 16px;
}
@media (min-width: 1024px) {
	.e2z-tool-gear-ratio-calculator .e2z-grc-main-grid {
		flex-direction: row;
		align-items: flex-start;
	}
	.e2z-tool-gear-ratio-calculator .e2z-grc-inputs-panel { flex: 3; }
	.e2z-tool-gear-ratio-calculator .e2z-grc-results-panel {
		flex: 3;
		min-width: 360px;
		position: sticky;
		top: 20px;
	}
}

.e2z-tool-gear-ratio-calculator .e2z-grc-inputs-panel,
.e2z-tool-gear-ratio-calculator .e2z-grc-results-panel {
	background: #FFFFFF;
	border-radius: 12px;
	padding: 20px;
	border: 1px solid #E2E8F0;
	box-shadow: 0 2px 8px rgba(30, 41, 59, 0.05);
}
.e2z-tool-gear-ratio-calculator .e2z-grc-section-title {
	font-size: 1.2rem;
	font-weight: 600;
	color: #475569;
	margin: 0 0 12px;
	padding-bottom: 8px;
	border-bottom: 2px solid #FEF3C7;
}
.e2z-tool-gear-ratio-calculator .e2z-grc-section-title + .e2z-grc-section-title { margin-top: 18px; }

/* Fields */
.e2z-tool-gear-ratio-calculator .e2z-grc-row {
	display: flex;
	flex-wrap: wrap;
	gap: 12px;
	margin-bottom: 12px;
}
.e2z-tool-gear-ratio-calculator .e2z-grc-field {
	flex: 1;
	min-width: 120px;
	display: flex;
	flex-direction: column;
}
.e2z-tool-gear-ratio-calculator .e2z-grc-label {
	font-size: 0.85rem;
	font-weight: 500;
	color: #475569;
	margin-bottom: 4px;
}
.e2z-tool-gear-ratio-calculator .e2z-grc-hint {
	font-size: 0.73rem;
	color: #94A3B8;
	margin-top: 4px;
}
.e2z-tool-gear-ratio-calculator .e2z-grc-stage-hint { margin: 0 0 10px; }
.e2z-tool-gear-ratio-calculator .e2z-grc-input {
	width: 100%;
	min-height: 44px;
	padding: 9px 11px;
	border: 1px solid #CBD5E1;
	border-radius: 6px;
	font-size: 0.92rem;
	font-family: inherit;
	background: #fff;
	color: #1E293B;
}
.e2z-tool-gear-ratio-calculator .e2z-grc-input:focus {
	outline: none;
	border-color: #EAB308;
	box-shadow: 0 0 0 3px rgba(234, 179, 8, 0.18);
}

/* Stage cards */
.e2z-tool-gear-ratio-calculator .e2z-grc-stage {
	border: 1px solid #E2E8F0;
	border-left: 4px solid #475569;
	border-radius: 10px;
	padding: 12px;
	margin-bottom: 12px;
	background: #F8FAFC;
}
.e2z-tool-gear-ratio-calculator .e2z-grc-stage-idler { border-left-color: #EAB308; background: #FFFBEB; }
.e2z-tool-gear-ratio-calculator .e2z-grc-stage-head {
	display: flex;
	justify-content: space-between;
	align-items: center;
	margin-bottom: 10px;
	gap: 8px;
	flex-wrap: wrap;
}
.e2z-tool-gear-ratio-calculator .e2z-grc-stage-name {
	font-size: 0.9rem;
	font-weight: 700;
	color: #1E293B;
}
.e2z-tool-gear-ratio-calculator .e2z-grc-stage-tools {
	display: flex;
	align-items: center;
	gap: 10px;
}
.e2z-tool-gear-ratio-calculator .e2z-grc-idler-label {
	display: inline-flex;
	align-items: center;
	gap: 6px;
	font-size: 0.8rem;
	font-weight: 600;
	color: #92400E;
	cursor: pointer;
	min-height: 32px;
}
.e2z-tool-gear-ratio-calculator .e2z-grc-idler-check { width: 18px; height: 18px; accent-color: #EAB308; cursor: pointer; }
.e2z-tool-gear-ratio-calculator .e2z-grc-remove-btn {
	min-height: 32px;
	min-width: 32px;
	border: 1px solid #FCA5A5;
	border-radius: 6px;
	background: #FEF2F2;
	color: #DC2626;
	font-size: 0.85rem;
	font-weight: 700;
	cursor: pointer;
}
.e2z-tool-gear-ratio-calculator .e2z-grc-remove-btn:hover { background: #DC2626; color: #fff; }
.e2z-tool-gear-ratio-calculator .e2z-grc-stage .e2z-grc-row { margin-bottom: 0; }

/* Buttons */
.e2z-tool-gear-ratio-calculator .e2z-grc-add-btn {
	min-height: 44px;
	padding: 10px 18px;
	border: 1px dashed #475569;
	border-radius: 8px;
	background: #fff;
	color: #475569;
	font-family: inherit;
	font-size: 0.9rem;
	font-weight: 600;
	cursor: pointer;
	display: inline-flex;
	align-items: center;
	gap: 6px;
}
.e2z-tool-gear-ratio-calculator .e2z-grc-add-btn:hover { background: #F1F5F9; }
.e2z-tool-gear-ratio-calculator .e2z-grc-stage-actions { margin-bottom: 14px; }
.e2z-tool-gear-ratio-calculator .e2z-grc-calc-btn,
.e2z-tool-gear-ratio-calculator .e2z-grc-suggest-btn {
	width: 100%;
	min-height: 48px;
	padding: 13px;
	border: none;
	border-radius: 8px;
	background: #475569;
	color: #fff;
	font-family: inherit;
	font-size: 1rem;
	font-weight: 600;
	cursor: pointer;
	display: flex;
	align-items: center;
	justify-content: center;
	gap: 8px;
	transition: filter 0.15s ease;
}
.e2z-tool-gear-ratio-calculator .e2z-grc-suggest-btn { background: #B45309; min-height: 44px; font-size: 0.92rem; }
.e2z-tool-gear-ratio-calculator .e2z-grc-calc-btn:hover,
.e2z-tool-gear-ratio-calculator .e2z-grc-suggest-btn:hover { filter: brightness(1.15); }
.e2z-tool-gear-ratio-calculator .e2z-grc-calc-btn:focus-visible {
	outline: none;
	box-shadow: 0 0 0 3px rgba(234, 179, 8, 0.4);
}

/* Suggest details */
.e2z-tool-gear-ratio-calculator .e2z-grc-suggest {
	margin-top: 16px;
	border: 1px dashed #FDE68A;
	border-radius: 10px;
	padding: 12px;
	background: #FFFBEB;
}
.e2z-tool-gear-ratio-calculator .e2z-grc-suggest-summary {
	cursor: pointer;
	font-size: 0.9rem;
	font-weight: 600;
	color: #92400E;
	min-height: 32px;
	display: flex;
	align-items: center;
}
.e2z-tool-gear-ratio-calculator .e2z-grc-suggest[open] .e2z-grc-suggest-summary { margin-bottom: 12px; }
.e2z-tool-gear-ratio-calculator .e2z-grc-suggest-result:empty { display: none; }
.e2z-tool-gear-ratio-calculator .e2z-grc-suggest-result { margin-top: 12px; }

/* Results */
.e2z-tool-gear-ratio-calculator .e2z-grc-empty-state {
	padding: 24px;
	text-align: center;
	color: #64748B;
	background: #F8FAFC;
	border-radius: 8px;
}
.e2z-tool-gear-ratio-calculator .e2z-grc-hero {
	border-radius: 10px;
	padding: 16px;
	text-align: center;
	margin-bottom: 14px;
	border: 1px solid #FDE68A;
	background: #FFFBEB;
}
.e2z-tool-gear-ratio-calculator .e2z-grc-hero-value {
	font-size: 2rem;
	font-weight: 800;
	margin: 4px 0;
	line-height: 1.1;
	color: #475569;
}
.e2z-tool-gear-ratio-calculator .e2z-grc-hero-label {
	font-size: 0.85rem;
	font-weight: 600;
	color: #64748B;
	margin: 0;
}
.e2z-tool-gear-ratio-calculator .e2z-grc-result-block {
	background: #F8FAFC;
	border: 1px solid #E2E8F0;
	border-radius: 10px;
	padding: 14px;
	margin-bottom: 12px;
}
.e2z-tool-gear-ratio-calculator .e2z-grc-result-block h3 {
	font-size: 1rem;
	color: #1E293B;
	margin: 0 0 10px;
}
.e2z-tool-gear-ratio-calculator .e2z-grc-stat-grid {
	display: grid;
	grid-template-columns: repeat(auto-fit, minmax(120px, 1fr));
	gap: 10px;
}
.e2z-tool-gear-ratio-calculator .e2z-grc-stat {
	background: #fff;
	border: 1px solid #E2E8F0;
	border-radius: 8px;
	padding: 10px;
	text-align: center;
}
.e2z-tool-gear-ratio-calculator .e2z-grc-stat-label {
	font-size: 0.73rem;
	font-weight: 600;
	color: #64748B;
	margin: 0 0 3px;
}
.e2z-tool-gear-ratio-calculator .e2z-grc-stat-value {
	font-size: 1.02rem;
	font-weight: 700;
	color: #475569;
	margin: 0;
}
.e2z-tool-gear-ratio-calculator .e2z-grc-stat-yellow .e2z-grc-stat-value { color: #B45309; }
.e2z-tool-gear-ratio-calculator .e2z-grc-stat-dark .e2z-grc-stat-value { color: #1E293B; }

/* Per-stage table */
.e2z-tool-gear-ratio-calculator .e2z-grc-table-wrap { width: 100%; overflow-x: auto; }
.e2z-tool-gear-ratio-calculator .e2z-grc-table {
	width: 100%;
	border-collapse: collapse;
	font-size: 0.83rem;
	background: #fff;
}
.e2z-tool-gear-ratio-calculator .e2z-grc-table th {
	background: #1E293B;
	color: #fff;
	padding: 8px;
	text-align: center;
	font-weight: 600;
	white-space: nowrap;
}
.e2z-tool-gear-ratio-calculator .e2z-grc-table td {
	padding: 7px 8px;
	text-align: center;
	border-bottom: 1px solid #F1F5F9;
	white-space: nowrap;
}
.e2z-tool-gear-ratio-calculator .e2z-grc-dir-cw { color: #16A34A; font-weight: 700; }
.e2z-tool-gear-ratio-calculator .e2z-grc-dir-ccw { color: #B45309; font-weight: 700; }
.e2z-tool-gear-ratio-calculator .e2z-grc-idler-badge {
	display: inline-block;
	background: #EAB308;
	color: #1E293B;
	font-size: 0.68rem;
	font-weight: 800;
	padding: 1px 7px;
	border-radius: 999px;
}

.e2z-tool-gear-ratio-calculator .e2z-grc-note {
	font-size: 0.84rem;
	margin: 8px 0 0;
	padding: 9px 11px;
	border-radius: 6px;
}
.e2z-tool-gear-ratio-calculator .e2z-grc-note-info { background: #FFFBEB; color: #92400E; border-left: 3px solid #EAB308; }
.e2z-tool-gear-ratio-calculator .e2z-grc-note-error { background: #FEF2F2; color: #991B1B; border-left: 3px solid #DC2626; }

/* Diagram */
.e2z-tool-gear-ratio-calculator .e2z-grc-diagram-wrap:empty { display: none; }
.e2z-tool-gear-ratio-calculator .e2z-grc-diagram-wrap { margin-bottom: 12px; }
.e2z-tool-gear-ratio-calculator .e2z-grc-diagram-wrap svg {
	width: 100%;
	height: auto;
	background: #fff;
	border: 1px solid #E2E8F0;
	border-radius: 10px;
}

/* Export */
.e2z-tool-gear-ratio-calculator .e2z-grc-export-row {
	display: flex;
	gap: 10px;
	flex-wrap: wrap;
	margin-top: 12px;
}
.e2z-tool-gear-ratio-calculator .e2z-grc-print-btn,
.e2z-tool-gear-ratio-calculator .e2z-grc-copy-btn {
	flex: 1;
	min-height: 44px;
	padding: 11px;
	border: none;
	border-radius: 8px;
	color: #fff;
	font-family: inherit;
	font-size: 0.9rem;
	font-weight: 600;
	cursor: pointer;
	display: flex;
	align-items: center;
	justify-content: center;
	gap: 6px;
}
.e2z-tool-gear-ratio-calculator .e2z-grc-print-btn { background: #475569; }
.e2z-tool-gear-ratio-calculator .e2z-grc-copy-btn { background: #1E293B; }
.e2z-tool-gear-ratio-calculator .e2z-grc-print-btn:hover,
.e2z-tool-gear-ratio-calculator .e2z-grc-copy-btn:hover { filter: brightness(1.25); }

.e2z-tool-gear-ratio-calculator .e2z-grc-disclaimer {
	font-size: 0.75rem;
	color: #94A3B8;
	margin: 12px 0 0;
	line-height: 1.45;
}

.e2z-tool-gear-ratio-calculator .e2z-grc-hidden { display: none !important; }

/* Responsive */
@media (max-width: 480px) {
	.e2z-tool-gear-ratio-calculator .e2z-grc-title { font-size: 1.4rem; }
	.e2z-tool-gear-ratio-calculator .e2z-grc-field { min-width: 110px; }
	.e2z-tool-gear-ratio-calculator .e2z-grc-inputs-panel,
	.e2z-tool-gear-ratio-calculator .e2z-grc-results-panel { padding: 14px; }
}
@media (max-width: 360px) {
	.e2z-tool-gear-ratio-calculator .e2z-grc-header { padding: 16px 10px; }
	.e2z-tool-gear-ratio-calculator .e2z-grc-title { font-size: 1.25rem; }
	.e2z-tool-gear-ratio-calculator .e2z-grc-field { min-width: 100%; }
}