/*!
 * Op-Amp Gain/Filter Designer — module CSS (e2z-ogf- prefix).
 * Color scheme (spec): Primary #2563EB (electric blue), Secondary #334155 (slate),
 * Accent #7C3AED (violet), BG #F8FAFC.
 * Scope: .e2z-tool-opamp-gain-filter-designer (framework shortcode wrapper).
 */

.e2z-tool-opamp-gain-filter-designer,
.e2z-tool-opamp-gain-filter-designer *,
.e2z-tool-opamp-gain-filter-designer *::before,
.e2z-tool-opamp-gain-filter-designer *::after {
	box-sizing: border-box;
}

.e2z-tool-opamp-gain-filter-designer .e2z-ogf-container {
	font-family: 'Inter', 'Segoe UI', system-ui, -apple-system, sans-serif;
	line-height: 1.5;
	color: #334155;
	width: 100%;
	margin: 0 auto;
	background: #F8FAFC;
	border-radius: 12px;
	box-shadow: 0 4px 20px rgba(51, 65, 85, 0.10);
	overflow: hidden;
}

/* Header */
.e2z-tool-opamp-gain-filter-designer .e2z-ogf-header {
	padding: 24px 16px;
	background: linear-gradient(135deg, #2563EB, #334155);
	color: #fff;
	text-align: center;
}
.e2z-tool-opamp-gain-filter-designer .e2z-ogf-title {
	font-size: 1.8rem;
	font-weight: 700;
	margin: 0 0 4px;
	color: #fff;
}
.e2z-tool-opamp-gain-filter-designer .e2z-ogf-subtitle {
	font-size: 0.9rem;
	opacity: 0.85;
	margin: 0 0 14px;
}
.e2z-tool-opamp-gain-filter-designer .e2z-ogf-mode-tabs {
	display: inline-flex;
	background: rgba(255,255,255,0.12);
	border-radius: 8px;
	padding: 4px;
	gap: 4px;
}
.e2z-tool-opamp-gain-filter-designer .e2z-ogf-mode-tab {
	min-height: 40px;
	padding: 8px 22px;
	border: none;
	border-radius: 6px;
	background: transparent;
	color: rgba(255,255,255,0.75);
	font-family: inherit;
	font-size: 0.9rem;
	font-weight: 600;
	cursor: pointer;
}
.e2z-tool-opamp-gain-filter-designer .e2z-ogf-mode-tab-active {
	background: #F8FAFC;
	color: #2563EB;
}
.e2z-tool-opamp-gain-filter-designer .e2z-ogf-mode-tab:focus-visible {
	outline: 2px solid #fff;
	outline-offset: 2px;
}

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

.e2z-tool-opamp-gain-filter-designer .e2z-ogf-inputs-panel,
.e2z-tool-opamp-gain-filter-designer .e2z-ogf-results-panel {
	background: #FFFFFF;
	border-radius: 12px;
	padding: 20px;
	border: 1px solid #E2E8F0;
	box-shadow: 0 2px 8px rgba(51, 65, 85, 0.05);
}
.e2z-tool-opamp-gain-filter-designer .e2z-ogf-section-title {
	font-size: 1.25rem;
	font-weight: 600;
	color: #2563EB;
	margin: 0 0 14px;
	padding-bottom: 8px;
	border-bottom: 2px solid #DBEAFE;
}

/* Fields */
.e2z-tool-opamp-gain-filter-designer .e2z-ogf-row {
	display: flex;
	flex-wrap: wrap;
	gap: 12px;
	margin-bottom: 12px;
}
.e2z-tool-opamp-gain-filter-designer .e2z-ogf-field {
	flex: 1;
	min-width: 120px;
	display: flex;
	flex-direction: column;
}
.e2z-tool-opamp-gain-filter-designer .e2z-ogf-label {
	font-size: 0.85rem;
	font-weight: 500;
	color: #475569;
	margin-bottom: 4px;
}
.e2z-tool-opamp-gain-filter-designer .e2z-ogf-hint {
	font-size: 0.75rem;
	color: #94A3B8;
	margin: 2px 0 8px;
}
.e2z-tool-opamp-gain-filter-designer .e2z-ogf-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: #334155;
}
.e2z-tool-opamp-gain-filter-designer .e2z-ogf-input:focus {
	outline: none;
	border-color: #2563EB;
	box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.12);
}

/* Buttons */
.e2z-tool-opamp-gain-filter-designer .e2z-ogf-btn {
	width: 100%;
	min-height: 48px;
	padding: 13px;
	border: none;
	border-radius: 8px;
	background: #2563EB;
	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-opamp-gain-filter-designer .e2z-ogf-check-btn { background: #7C3AED; }
.e2z-tool-opamp-gain-filter-designer .e2z-ogf-btn:hover { filter: brightness(1.12); }
.e2z-tool-opamp-gain-filter-designer .e2z-ogf-btn:focus-visible {
	outline: none;
	box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.35);
}

/* Checks details */
.e2z-tool-opamp-gain-filter-designer .e2z-ogf-checks {
	margin-top: 16px;
	border: 1px dashed #C4B5FD;
	border-radius: 10px;
	padding: 12px;
	background: #FaF5FF;
}
.e2z-tool-opamp-gain-filter-designer .e2z-ogf-checks-summary {
	cursor: pointer;
	font-size: 0.9rem;
	font-weight: 600;
	color: #7C3AED;
	min-height: 32px;
	display: flex;
	align-items: center;
}
.e2z-tool-opamp-gain-filter-designer .e2z-ogf-checks[open] .e2z-ogf-checks-summary { margin-bottom: 12px; }

/* Results */
.e2z-tool-opamp-gain-filter-designer .e2z-ogf-empty-state {
	padding: 24px;
	text-align: center;
	color: #64748B;
	background: #F8FAFC;
	border-radius: 8px;
}
.e2z-tool-opamp-gain-filter-designer .e2z-ogf-hero {
	border-radius: 10px;
	padding: 16px;
	text-align: center;
	margin-bottom: 14px;
	border: 1px solid #BFDBFE;
	background: #EFF6FF;
}
.e2z-tool-opamp-gain-filter-designer .e2z-ogf-hero-value {
	font-size: 2rem;
	font-weight: 800;
	margin: 4px 0;
	line-height: 1.1;
	color: #2563EB;
}
.e2z-tool-opamp-gain-filter-designer .e2z-ogf-hero-label {
	font-size: 0.85rem;
	font-weight: 600;
	color: #475569;
	margin: 0;
}
.e2z-tool-opamp-gain-filter-designer .e2z-ogf-result-block {
	background: #F8FAFC;
	border: 1px solid #E2E8F0;
	border-radius: 10px;
	padding: 14px;
	margin-bottom: 12px;
}
.e2z-tool-opamp-gain-filter-designer .e2z-ogf-result-block h3 {
	font-size: 1rem;
	color: #334155;
	margin: 0 0 10px;
}
.e2z-tool-opamp-gain-filter-designer .e2z-ogf-stat-grid {
	display: grid;
	grid-template-columns: repeat(auto-fit, minmax(120px, 1fr));
	gap: 10px;
}
.e2z-tool-opamp-gain-filter-designer .e2z-ogf-stat {
	background: #fff;
	border: 1px solid #E2E8F0;
	border-radius: 8px;
	padding: 10px;
	text-align: center;
}
.e2z-tool-opamp-gain-filter-designer .e2z-ogf-stat-label {
	font-size: 0.73rem;
	font-weight: 600;
	color: #64748B;
	margin: 0 0 3px;
}
.e2z-tool-opamp-gain-filter-designer .e2z-ogf-stat-value {
	font-size: 1.02rem;
	font-weight: 700;
	color: #2563EB;
	margin: 0;
}
.e2z-tool-opamp-gain-filter-designer .e2z-ogf-stat-violet .e2z-ogf-stat-value { color: #7C3AED; }
.e2z-tool-opamp-gain-filter-designer .e2z-ogf-stat-slate .e2z-ogf-stat-value { color: #334155; }

.e2z-tool-opamp-gain-filter-designer .e2z-ogf-note {
	font-size: 0.84rem;
	margin: 8px 0 0;
	padding: 9px 11px;
	border-radius: 6px;
}
.e2z-tool-opamp-gain-filter-designer .e2z-ogf-note-info { background: #F5F3FF; color: #5B21B6; border-left: 3px solid #7C3AED; }
.e2z-tool-opamp-gain-filter-designer .e2z-ogf-note-ok { background: #ECFDF5; color: #065F46; border-left: 3px solid #059669; }
.e2z-tool-opamp-gain-filter-designer .e2z-ogf-note-warn { background: #FFFBEB; color: #92400E; border-left: 3px solid #F59E0B; }
.e2z-tool-opamp-gain-filter-designer .e2z-ogf-note-error { background: #FEF2F2; color: #991B1B; border-left: 3px solid #DC2626; }

/* Plot */
.e2z-tool-opamp-gain-filter-designer .e2z-ogf-plot-wrap:empty { display: none; }
.e2z-tool-opamp-gain-filter-designer .e2z-ogf-plot-wrap { margin-bottom: 12px; }
.e2z-tool-opamp-gain-filter-designer .e2z-ogf-plot-wrap svg {
	width: 100%;
	height: auto;
	background: #fff;
	border: 1px solid #E2E8F0;
	border-radius: 10px;
}
.e2z-tool-opamp-gain-filter-designer .e2z-ogf-checks-results:empty { display: none; }

/* Export */
.e2z-tool-opamp-gain-filter-designer .e2z-ogf-export-row {
	display: flex;
	gap: 10px;
	flex-wrap: wrap;
	margin-top: 12px;
}
.e2z-tool-opamp-gain-filter-designer .e2z-ogf-print-btn,
.e2z-tool-opamp-gain-filter-designer .e2z-ogf-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-opamp-gain-filter-designer .e2z-ogf-print-btn { background: #2563EB; }
.e2z-tool-opamp-gain-filter-designer .e2z-ogf-copy-btn { background: #334155; }
.e2z-tool-opamp-gain-filter-designer .e2z-ogf-print-btn:hover,
.e2z-tool-opamp-gain-filter-designer .e2z-ogf-copy-btn:hover { filter: brightness(1.2); }

.e2z-tool-opamp-gain-filter-designer .e2z-ogf-disclaimer {
	font-size: 0.75rem;
	color: #94A3B8;
	margin: 12px 0 0;
	line-height: 1.45;
}

.e2z-tool-opamp-gain-filter-designer .e2z-ogf-hidden { display: none !important; }

/* Responsive */
@media (max-width: 480px) {
	.e2z-tool-opamp-gain-filter-designer .e2z-ogf-title { font-size: 1.4rem; }
	.e2z-tool-opamp-gain-filter-designer .e2z-ogf-field { min-width: 110px; }
	.e2z-tool-opamp-gain-filter-designer .e2z-ogf-inputs-panel,
	.e2z-tool-opamp-gain-filter-designer .e2z-ogf-results-panel { padding: 14px; }
	.e2z-tool-opamp-gain-filter-designer .e2z-ogf-mode-tab { padding: 8px 16px; }
}
@media (max-width: 360px) {
	.e2z-tool-opamp-gain-filter-designer .e2z-ogf-header { padding: 16px 10px; }
	.e2z-tool-opamp-gain-filter-designer .e2z-ogf-title { font-size: 1.25rem; }
	.e2z-tool-opamp-gain-filter-designer .e2z-ogf-field { min-width: 100%; }
}