/*!
 * Spring Design Calculator — module CSS (e2z-spc- prefix).
 * Color scheme (spec): Primary #4D7C0F (olive green), Secondary #292524 (graphite),
 * Accent #B45309, BG #FAFAF9.
 * Scope: .e2z-tool-spring-design-calculator (framework shortcode wrapper).
 */

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

.e2z-tool-spring-design-calculator .e2z-spc-container {
	font-family: 'Inter', 'Segoe UI', system-ui, -apple-system, sans-serif;
	line-height: 1.5;
	color: #292524;
	width: 100%;
	margin: 0 auto;
	background: #FAFAF9;
	border-radius: 12px;
	box-shadow: 0 4px 20px rgba(41, 37, 36, 0.10);
	overflow: hidden;
}

/* Header */
.e2z-tool-spring-design-calculator .e2z-spc-header {
	padding: 24px 16px;
	background: linear-gradient(135deg, #4D7C0F, #292524);
	color: #fff;
	text-align: center;
}
.e2z-tool-spring-design-calculator .e2z-spc-title {
	font-size: 1.8rem;
	font-weight: 700;
	margin: 0 0 4px;
	color: #fff;
}
.e2z-tool-spring-design-calculator .e2z-spc-subtitle {
	font-size: 0.9rem;
	opacity: 0.85;
	margin: 0 0 14px;
}
.e2z-tool-spring-design-calculator .e2z-spc-mode-tabs {
	display: inline-flex;
	background: rgba(255,255,255,0.12);
	border-radius: 8px;
	padding: 4px;
	gap: 4px;
	flex-wrap: wrap;
	justify-content: center;
}
.e2z-tool-spring-design-calculator .e2z-spc-mode-tab {
	min-height: 40px;
	padding: 8px 18px;
	border: none;
	border-radius: 6px;
	background: transparent;
	color: rgba(255,255,255,0.75);
	font-family: inherit;
	font-size: 0.88rem;
	font-weight: 600;
	cursor: pointer;
}
.e2z-tool-spring-design-calculator .e2z-spc-mode-tab-active {
	background: #FAFAF9;
	color: #4D7C0F;
}
.e2z-tool-spring-design-calculator .e2z-spc-mode-tab:focus-visible {
	outline: 2px solid #fff;
	outline-offset: 2px;
}

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

.e2z-tool-spring-design-calculator .e2z-spc-inputs-panel,
.e2z-tool-spring-design-calculator .e2z-spc-results-panel {
	background: #FFFFFF;
	border-radius: 12px;
	padding: 20px;
	border: 1px solid #E7E5E4;
	box-shadow: 0 2px 8px rgba(41, 37, 36, 0.05);
}
.e2z-tool-spring-design-calculator .e2z-spc-section-title {
	font-size: 1.2rem;
	font-weight: 600;
	color: #4D7C0F;
	margin: 0 0 12px;
	padding-bottom: 8px;
	border-bottom: 2px solid #ECFCCB;
}

/* Fields */
.e2z-tool-spring-design-calculator .e2z-spc-row {
	display: flex;
	flex-wrap: wrap;
	gap: 12px;
	margin-bottom: 12px;
}
.e2z-tool-spring-design-calculator .e2z-spc-field {
	flex: 1;
	min-width: 130px;
	display: flex;
	flex-direction: column;
}
.e2z-tool-spring-design-calculator .e2z-spc-label {
	font-size: 0.85rem;
	font-weight: 500;
	color: #57534E;
	margin-bottom: 4px;
}
.e2z-tool-spring-design-calculator .e2z-spc-hint {
	font-size: 0.73rem;
	color: #A8A29E;
	margin-top: 4px;
}
.e2z-tool-spring-design-calculator .e2z-spc-input {
	width: 100%;
	min-height: 44px;
	padding: 9px 11px;
	border: 1px solid #D6D3D1;
	border-radius: 6px;
	font-size: 0.92rem;
	font-family: inherit;
	background: #fff;
	color: #292524;
}
.e2z-tool-spring-design-calculator .e2z-spc-input:focus {
	outline: none;
	border-color: #4D7C0F;
	box-shadow: 0 0 0 3px rgba(77, 124, 15, 0.14);
}

/* Buttons */
.e2z-tool-spring-design-calculator .e2z-spc-calc-btn,
.e2z-tool-spring-design-calculator .e2z-spc-reverse-btn {
	width: 100%;
	min-height: 48px;
	padding: 13px;
	border: none;
	border-radius: 8px;
	background: #4D7C0F;
	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;
	margin-top: 4px;
}
.e2z-tool-spring-design-calculator .e2z-spc-reverse-btn { background: #B45309; min-height: 44px; font-size: 0.92rem; }
.e2z-tool-spring-design-calculator .e2z-spc-calc-btn:hover,
.e2z-tool-spring-design-calculator .e2z-spc-reverse-btn:hover { filter: brightness(1.15); }
.e2z-tool-spring-design-calculator .e2z-spc-calc-btn:focus-visible {
	outline: none;
	box-shadow: 0 0 0 3px rgba(77, 124, 15, 0.35);
}

/* Reverse details */
.e2z-tool-spring-design-calculator .e2z-spc-reverse {
	margin-top: 16px;
	border: 1px dashed #FED7AA;
	border-radius: 10px;
	padding: 12px;
	background: #FFF7ED;
}
.e2z-tool-spring-design-calculator .e2z-spc-reverse-summary {
	cursor: pointer;
	font-size: 0.9rem;
	font-weight: 600;
	color: #B45309;
	min-height: 32px;
	display: flex;
	align-items: center;
}
.e2z-tool-spring-design-calculator .e2z-spc-reverse[open] .e2z-spc-reverse-summary { margin-bottom: 12px; }
.e2z-tool-spring-design-calculator .e2z-spc-reverse-result:empty { display: none; }
.e2z-tool-spring-design-calculator .e2z-spc-reverse-result { margin-top: 12px; }

/* Results */
.e2z-tool-spring-design-calculator .e2z-spc-empty-state {
	padding: 24px;
	text-align: center;
	color: #78716C;
	background: #FAFAF9;
	border-radius: 8px;
}
.e2z-tool-spring-design-calculator .e2z-spc-hero {
	border-radius: 10px;
	padding: 16px;
	text-align: center;
	margin-bottom: 14px;
	border: 1px solid #D9F99D;
	background: #F7FEE7;
}
.e2z-tool-spring-design-calculator .e2z-spc-hero-value {
	font-size: 2rem;
	font-weight: 800;
	margin: 4px 0;
	line-height: 1.1;
	color: #4D7C0F;
}
.e2z-tool-spring-design-calculator .e2z-spc-hero-label {
	font-size: 0.85rem;
	font-weight: 600;
	color: #57534E;
	margin: 0;
}

/* Badge */
.e2z-tool-spring-design-calculator .e2z-spc-badge {
	display: inline-block;
	padding: 5px 16px;
	border-radius: 999px;
	font-size: 0.9rem;
	font-weight: 700;
	margin-top: 8px;
}
.e2z-tool-spring-design-calculator .e2z-spc-badge-safe { background: #DCFCE7; color: #166534; }
.e2z-tool-spring-design-calculator .e2z-spc-badge-over { background: #FEE2E2; color: #991B1B; }

.e2z-tool-spring-design-calculator .e2z-spc-result-block {
	background: #FAFAF9;
	border: 1px solid #E7E5E4;
	border-radius: 10px;
	padding: 14px;
	margin-bottom: 12px;
}
.e2z-tool-spring-design-calculator .e2z-spc-result-block h3 {
	font-size: 1rem;
	color: #292524;
	margin: 0 0 10px;
}
.e2z-tool-spring-design-calculator .e2z-spc-stat-grid {
	display: grid;
	grid-template-columns: repeat(auto-fit, minmax(125px, 1fr));
	gap: 10px;
}
.e2z-tool-spring-design-calculator .e2z-spc-stat {
	background: #fff;
	border: 1px solid #E7E5E4;
	border-radius: 8px;
	padding: 10px;
	text-align: center;
}
.e2z-tool-spring-design-calculator .e2z-spc-stat-label {
	font-size: 0.73rem;
	font-weight: 600;
	color: #78716C;
	margin: 0 0 3px;
}
.e2z-tool-spring-design-calculator .e2z-spc-stat-value {
	font-size: 1.02rem;
	font-weight: 700;
	color: #4D7C0F;
	margin: 0;
}
.e2z-tool-spring-design-calculator .e2z-spc-stat-amber .e2z-spc-stat-value { color: #B45309; }
.e2z-tool-spring-design-calculator .e2z-spc-stat-dark .e2z-spc-stat-value { color: #292524; }
.e2z-tool-spring-design-calculator .e2z-spc-stat-red .e2z-spc-stat-value { color: #DC2626; }

.e2z-tool-spring-design-calculator .e2z-spc-note {
	font-size: 0.84rem;
	margin: 8px 0 0;
	padding: 9px 11px;
	border-radius: 6px;
}
.e2z-tool-spring-design-calculator .e2z-spc-note-info { background: #F7FEE7; color: #3F6212; border-left: 3px solid #4D7C0F; }
.e2z-tool-spring-design-calculator .e2z-spc-note-warn { background: #FFFBEB; color: #92400E; border-left: 3px solid #F59E0B; }
.e2z-tool-spring-design-calculator .e2z-spc-note-error { background: #FEF2F2; color: #991B1B; border-left: 3px solid #DC2626; }

/* Export */
.e2z-tool-spring-design-calculator .e2z-spc-export-row {
	display: flex;
	gap: 10px;
	flex-wrap: wrap;
	margin-top: 12px;
}
.e2z-tool-spring-design-calculator .e2z-spc-print-btn,
.e2z-tool-spring-design-calculator .e2z-spc-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-spring-design-calculator .e2z-spc-print-btn { background: #4D7C0F; }
.e2z-tool-spring-design-calculator .e2z-spc-copy-btn { background: #292524; }
.e2z-tool-spring-design-calculator .e2z-spc-print-btn:hover,
.e2z-tool-spring-design-calculator .e2z-spc-copy-btn:hover { filter: brightness(1.25); }

.e2z-tool-spring-design-calculator .e2z-spc-disclaimer {
	font-size: 0.75rem;
	color: #A8A29E;
	margin: 12px 0 0;
	line-height: 1.45;
}

.e2z-tool-spring-design-calculator .e2z-spc-hidden { display: none !important; }

/* Responsive */
@media (max-width: 480px) {
	.e2z-tool-spring-design-calculator .e2z-spc-title { font-size: 1.4rem; }
	.e2z-tool-spring-design-calculator .e2z-spc-field { min-width: 110px; }
	.e2z-tool-spring-design-calculator .e2z-spc-inputs-panel,
	.e2z-tool-spring-design-calculator .e2z-spc-results-panel { padding: 14px; }
	.e2z-tool-spring-design-calculator .e2z-spc-mode-tab { padding: 8px 12px; font-size: 0.82rem; }
}
@media (max-width: 360px) {
	.e2z-tool-spring-design-calculator .e2z-spc-header { padding: 16px 10px; }
	.e2z-tool-spring-design-calculator .e2z-spc-title { font-size: 1.25rem; }
	.e2z-tool-spring-design-calculator .e2z-spc-field { min-width: 100%; }
}