/*!
 * Reynolds Number Calculator — module CSS (e2z-ren- prefix).
 * Color scheme (spec): Primary #0D9488 (fluid teal), Secondary #0F172A (navy),
 * Accent #F97316 (orange), BG #F0FDFA.
 * Scope: .e2z-tool-reynolds-number-calculator (framework shortcode wrapper).
 */

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

.e2z-tool-reynolds-number-calculator .e2z-ren-container {
	font-family: 'Inter', 'Segoe UI', system-ui, -apple-system, sans-serif;
	line-height: 1.5;
	color: #0F172A;
	width: 100%;
	margin: 0 auto;
	background: #F0FDFA;
	border-radius: 12px;
	box-shadow: 0 4px 20px rgba(13, 148, 136, 0.14);
	overflow: hidden;
}

/* Monospace technical fields */
.e2z-tool-reynolds-number-calculator .e2z-ren-mono,
.e2z-tool-reynolds-number-calculator .e2z-ren-stat-value,
.e2z-tool-reynolds-number-calculator .e2z-ren-formula {
	font-family: 'SF Mono', 'Courier New', ui-monospace, Menlo, Consolas, monospace;
}

/* Header */
.e2z-tool-reynolds-number-calculator .e2z-ren-header {
	padding: 24px 16px;
	background: linear-gradient(135deg, #0F172A, #0D9488);
	color: #fff;
	text-align: center;
	border-bottom: 3px solid #F97316;
}
.e2z-tool-reynolds-number-calculator .e2z-ren-title {
	font-size: 1.75rem;
	font-weight: 700;
	margin: 0 0 4px;
	color: #fff;
}
.e2z-tool-reynolds-number-calculator .e2z-ren-subtitle {
	font-size: 0.88rem;
	opacity: 0.85;
	margin: 0;
}

/* Layout */
.e2z-tool-reynolds-number-calculator .e2z-ren-main-grid {
	display: flex;
	flex-direction: column;
	gap: 20px;
	padding: 16px;
}
@media (min-width: 1024px) {
	.e2z-tool-reynolds-number-calculator .e2z-ren-main-grid {
		flex-direction: row;
		align-items: flex-start;
	}
	.e2z-tool-reynolds-number-calculator .e2z-ren-inputs-panel { flex: 2; }
	.e2z-tool-reynolds-number-calculator .e2z-ren-results-panel { flex: 3; min-width: 370px; }
}

.e2z-tool-reynolds-number-calculator .e2z-ren-inputs-panel,
.e2z-tool-reynolds-number-calculator .e2z-ren-results-panel {
	background: #FFFFFF;
	border-radius: 12px;
	padding: 20px;
	border: 1px solid #CCFBF1;
	box-shadow: 0 2px 8px rgba(13, 148, 136, 0.05);
}
.e2z-tool-reynolds-number-calculator .e2z-ren-section-title {
	font-size: 1.2rem;
	font-weight: 600;
	color: #0D9488;
	margin: 0 0 12px;
	padding-bottom: 8px;
	border-bottom: 2px solid #FFEDD5;
}

/* Tabs */
.e2z-tool-reynolds-number-calculator .e2z-ren-tabs {
	display: flex;
	gap: 4px;
	margin-bottom: 16px;
	background: #F0FDFA;
	padding: 4px;
	border-radius: 8px;
	flex-wrap: wrap;
}
.e2z-tool-reynolds-number-calculator .e2z-ren-tab {
	flex: 1;
	min-width: 100px;
	min-height: 44px;
	padding: 10px 6px;
	border: none;
	border-radius: 6px;
	background: transparent;
	color: #475569;
	font-family: inherit;
	font-size: 0.84rem;
	font-weight: 600;
	cursor: pointer;
}
.e2z-tool-reynolds-number-calculator .e2z-ren-tab-active {
	background: #0D9488;
	color: #fff;
}

/* Fields */
.e2z-tool-reynolds-number-calculator .e2z-ren-row {
	display: flex;
	flex-wrap: wrap;
	gap: 12px;
	margin-bottom: 12px;
}
.e2z-tool-reynolds-number-calculator .e2z-ren-field {
	flex: 1;
	min-width: 140px;
	display: flex;
	flex-direction: column;
	margin-bottom: 12px;
}
.e2z-tool-reynolds-number-calculator .e2z-ren-row .e2z-ren-field { margin-bottom: 0; }
.e2z-tool-reynolds-number-calculator .e2z-ren-label {
	font-size: 0.85rem;
	font-weight: 500;
	color: #334155;
	margin-bottom: 4px;
}
.e2z-tool-reynolds-number-calculator .e2z-ren-hint {
	font-size: 0.73rem;
	color: #94A3B8;
	margin-top: 5px;
	line-height: 1.4;
}
.e2z-tool-reynolds-number-calculator .e2z-ren-input {
	width: 100%;
	min-height: 44px;
	padding: 10px 12px;
	border: 1px solid #CBD5E1;
	border-radius: 6px;
	font-size: 0.95rem;
	background: #fff;
	color: #0F172A;
}
.e2z-tool-reynolds-number-calculator .e2z-ren-input:focus {
	outline: none;
	border-color: #0D9488;
	box-shadow: 0 0 0 3px rgba(13, 148, 136, 0.2);
}

/* Button */
.e2z-tool-reynolds-number-calculator .e2z-ren-calc-btn {
	width: 100%;
	min-height: 48px;
	padding: 13px;
	border: none;
	border-radius: 8px;
	background: #0D9488;
	color: #fff;
	font-family: inherit;
	font-size: 1rem;
	font-weight: 700;
	cursor: pointer;
	display: flex;
	align-items: center;
	justify-content: center;
	gap: 8px;
	transition: filter 0.15s ease;
}
.e2z-tool-reynolds-number-calculator .e2z-ren-calc-btn:hover { filter: brightness(1.12); }
.e2z-tool-reynolds-number-calculator .e2z-ren-calc-btn:focus-visible {
	outline: none;
	box-shadow: 0 0 0 3px rgba(249, 115, 22, 0.55);
}

/* Results */
.e2z-tool-reynolds-number-calculator .e2z-ren-empty-state {
	padding: 24px;
	text-align: center;
	color: #64748B;
	background: #F8FAFC;
	border-radius: 8px;
}
.e2z-tool-reynolds-number-calculator .e2z-ren-hero {
	border-radius: 10px;
	padding: 16px;
	text-align: center;
	margin-bottom: 14px;
	background: #0F172A;
}
.e2z-tool-reynolds-number-calculator .e2z-ren-hero-value {
	font-size: 2rem;
	font-weight: 800;
	margin: 4px 0;
	line-height: 1.12;
	font-family: 'SF Mono', 'Courier New', ui-monospace, monospace;
	word-break: break-word;
}
.e2z-tool-reynolds-number-calculator .e2z-ren-hero-label {
	font-size: 0.83rem;
	font-weight: 600;
	color: #94A3B8;
	margin: 0;
}
.e2z-tool-reynolds-number-calculator .e2z-ren-regime-laminar { color: #2DD4BF; }
.e2z-tool-reynolds-number-calculator .e2z-ren-regime-transitional { color: #FBBF24; }
.e2z-tool-reynolds-number-calculator .e2z-ren-regime-turbulent { color: #FB923C; }

.e2z-tool-reynolds-number-calculator .e2z-ren-badge {
	display: inline-block;
	padding: 4px 14px;
	border-radius: 999px;
	font-size: 0.85rem;
	font-weight: 800;
	margin-top: 6px;
}
.e2z-tool-reynolds-number-calculator .e2z-ren-badge-laminar { background: #CCFBF1; color: #0F766E; }
.e2z-tool-reynolds-number-calculator .e2z-ren-badge-transitional { background: #FEF3C7; color: #92400E; }
.e2z-tool-reynolds-number-calculator .e2z-ren-badge-turbulent { background: #FFEDD5; color: #C2410C; }

.e2z-tool-reynolds-number-calculator .e2z-ren-result-block {
	background: #F8FAFC;
	border: 1px solid #E2E8F0;
	border-radius: 10px;
	padding: 14px;
	margin-bottom: 12px;
}
.e2z-tool-reynolds-number-calculator .e2z-ren-result-block h3 {
	font-size: 1rem;
	color: #0F172A;
	margin: 0 0 10px;
}
.e2z-tool-reynolds-number-calculator .e2z-ren-stat-grid {
	display: grid;
	grid-template-columns: repeat(auto-fit, minmax(130px, 1fr));
	gap: 10px;
}
.e2z-tool-reynolds-number-calculator .e2z-ren-stat {
	background: #fff;
	border: 1px solid #E2E8F0;
	border-radius: 8px;
	padding: 10px;
	text-align: center;
}
.e2z-tool-reynolds-number-calculator .e2z-ren-stat-label {
	font-size: 0.72rem;
	font-weight: 600;
	color: #64748B;
	margin: 0 0 3px;
	font-family: 'Inter', system-ui, sans-serif;
}
.e2z-tool-reynolds-number-calculator .e2z-ren-stat-value {
	font-size: 1rem;
	font-weight: 700;
	color: #0F172A;
	margin: 0;
	word-break: break-word;
}
.e2z-tool-reynolds-number-calculator .e2z-ren-stat-teal .e2z-ren-stat-value { color: #0D9488; }

/* Regime scale bar */
.e2z-tool-reynolds-number-calculator .e2z-ren-scale {
	display: flex;
	height: 26px;
	border-radius: 999px;
	overflow: hidden;
	border: 1px solid #E2E8F0;
	position: relative;
	margin-top: 8px;
}
.e2z-tool-reynolds-number-calculator .e2z-ren-scale-seg {
	display: flex;
	align-items: center;
	justify-content: center;
	font-size: 0.66rem;
	font-weight: 700;
	color: #fff;
}
.e2z-tool-reynolds-number-calculator .e2z-ren-scale-lam { background: #14B8A6; }
.e2z-tool-reynolds-number-calculator .e2z-ren-scale-tra { background: #F59E0B; }
.e2z-tool-reynolds-number-calculator .e2z-ren-scale-tur { background: #F97316; }
.e2z-tool-reynolds-number-calculator .e2z-ren-scale-marker {
	position: absolute;
	top: -4px;
	width: 3px;
	height: 34px;
	background: #0F172A;
	border-radius: 2px;
}

/* Flow illustration */
.e2z-tool-reynolds-number-calculator .e2z-ren-flow-wrap svg {
	width: 100%;
	height: auto;
	background: #fff;
	border: 1px solid #E2E8F0;
	border-radius: 8px;
}

.e2z-tool-reynolds-number-calculator .e2z-ren-formula {
	display: block;
	background: #0F172A;
	color: #5EEAD4;
	border-radius: 6px;
	padding: 9px 11px;
	font-size: 0.85rem;
	margin: 8px 0 0;
	overflow-x: auto;
	white-space: pre;
}
.e2z-tool-reynolds-number-calculator .e2z-ren-steps {
	list-style: none;
	margin: 0;
	padding: 0;
}
.e2z-tool-reynolds-number-calculator .e2z-ren-steps li {
	padding: 7px 10px 7px 12px;
	border-left: 3px solid #0D9488;
	margin-bottom: 7px;
	background: #fff;
	border-radius: 0 6px 6px 0;
	font-size: 0.86rem;
	border-top: 1px solid #F1F5F9;
	border-right: 1px solid #F1F5F9;
	border-bottom: 1px solid #F1F5F9;
}

.e2z-tool-reynolds-number-calculator .e2z-ren-note {
	font-size: 0.84rem;
	margin: 8px 0 0;
	padding: 9px 11px;
	border-radius: 6px;
}
.e2z-tool-reynolds-number-calculator .e2z-ren-note-info { background: #F0FDFA; color: #0F766E; border-left: 3px solid #0D9488; }
.e2z-tool-reynolds-number-calculator .e2z-ren-note-warn { background: #FFF7ED; color: #9A3412; border-left: 3px solid #F97316; }
.e2z-tool-reynolds-number-calculator .e2z-ren-note-error { background: #FEF2F2; color: #991B1B; border-left: 3px solid #DC2626; }

/* Export */
.e2z-tool-reynolds-number-calculator .e2z-ren-export-row {
	display: flex;
	gap: 10px;
	flex-wrap: wrap;
	margin-top: 12px;
}
.e2z-tool-reynolds-number-calculator .e2z-ren-print-btn,
.e2z-tool-reynolds-number-calculator .e2z-ren-copy-btn {
	flex: 1;
	min-height: 44px;
	padding: 11px;
	border: none;
	border-radius: 8px;
	color: #fff;
	font-family: inherit;
	font-size: 0.88rem;
	font-weight: 600;
	cursor: pointer;
	display: flex;
	align-items: center;
	justify-content: center;
	gap: 6px;
}
.e2z-tool-reynolds-number-calculator .e2z-ren-print-btn { background: #0F172A; }
.e2z-tool-reynolds-number-calculator .e2z-ren-copy-btn { background: #0D9488; }
.e2z-tool-reynolds-number-calculator .e2z-ren-print-btn:hover,
.e2z-tool-reynolds-number-calculator .e2z-ren-copy-btn:hover { filter: brightness(1.25); }

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

.e2z-tool-reynolds-number-calculator .e2z-ren-hidden { display: none !important; }

/* Responsive */
@media (max-width: 480px) {
	.e2z-tool-reynolds-number-calculator .e2z-ren-title { font-size: 1.32rem; }
	.e2z-tool-reynolds-number-calculator .e2z-ren-inputs-panel,
	.e2z-tool-reynolds-number-calculator .e2z-ren-results-panel { padding: 14px; }
	.e2z-tool-reynolds-number-calculator .e2z-ren-hero-value { font-size: 1.5rem; }
	.e2z-tool-reynolds-number-calculator .e2z-ren-tab { min-width: 100%; }
}
@media (max-width: 360px) {
	.e2z-tool-reynolds-number-calculator .e2z-ren-header { padding: 16px 10px; }
	.e2z-tool-reynolds-number-calculator .e2z-ren-title { font-size: 1.14rem; }
	.e2z-tool-reynolds-number-calculator .e2z-ren-field { min-width: 100%; }
}