/* =========================================================================
   IDF Subsidy Calculator - Frontend Styles
   Mobile-first, responsive, no external frameworks
   ========================================================================= */

:root {
	--idf-sc-primary: #6c5ce7;
	--idf-sc-accent: #a29bfe;
	--idf-sc-border: #e0e0e0;
	--idf-sc-bg: #f9f9f9;
	--idf-sc-success: #27ae60;
	--idf-sc-warning: #f39c12;
	--idf-sc-color-qs: #f39c12;
}

/* ─── Wrapper & Layout ─────────────────────────────────────────────── */

.idf-sc-wrapper {
	width: 100%;
	margin: 0 auto;
	padding: 20px;
	box-sizing: border-box;
	line-height: 1.6;
}

.idf-sc-wrapper.idf-sc-module {
	padding: 0;
}

.idf-sc-container {
	background: #fff;
	border: 1px solid var(--idf-sc-border);
	border-radius: 8px;
	padding: 30px;
	box-shadow: 0 1px 3px rgba(0, 0, 0, 0.05);
}

/* ─── Step Indicator ───────────────────────────────────────────────── */

.idf-sc-steps {
	display: flex;
	justify-content: space-between;
	margin-bottom: 40px;
	gap: 10px;
}

.idf-sc-step {
	flex: 1;
	text-align: center;
	position: relative;
}

.idf-sc-step::after {
	content: '';
	position: absolute;
	top: 24px;
	left: 50%;
	width: 100%;
	height: 2px;
	background: var(--idf-sc-border);
	z-index: 0;
}

.idf-sc-step:last-child::after {
	display: none;
}

.idf-sc-step-circle {
	width: 48px;
	height: 48px;
	border-radius: 50%;
	background: var(--idf-sc-bg);
	border: 2px solid var(--idf-sc-border);
	display: flex;
	align-items: center;
	justify-content: center;
	margin: 0 auto 8px;
	font-weight: 600;
	font-size: 16px;
	color: #999;
	position: relative;
	z-index: 1;
}

.idf-sc-step.active .idf-sc-step-circle {
	background: var(--idf-sc-primary);
	border-color: var(--idf-sc-primary);
	color: #fff;
}

.idf-sc-step.completed .idf-sc-step-circle {
	background: var(--idf-sc-success);
	border-color: var(--idf-sc-success);
	color: #fff;
}

.idf-sc-step-label {
	font-size: 0.85em;
	color: #999;
	font-weight: 500;
	word-break: break-word;
}

/* ─── Form Elements ────────────────────────────────────────────────── */

.idf-sc-form-group {
	margin-bottom: 20px;
}

.idf-sc-form-group label {
	display: block;
	margin-bottom: 8px;
	font-weight: 500;
}

.idf-sc-form-group input,
.idf-sc-form-group select,
.idf-sc-form-group textarea {
	width: 100%;
	padding: 10px 12px;
	font-size: inherit;
	border: 1px solid var(--idf-sc-border);
	border-radius: 4px;
	box-sizing: border-box;
	font-family: inherit;
	color: inherit;
}

.idf-sc-form-group input:focus,
.idf-sc-form-group select:focus,
.idf-sc-form-group textarea:focus {
	outline: none;
	border-color: var(--idf-sc-primary);
	box-shadow: 0 0 0 3px rgba(108, 92, 231, 0.1);
}

.idf-sc-form-group input[type="number"] {
	-moz-appearance: textfield;
}

.idf-sc-form-group input[type="number"]::-webkit-outer-spin-button,
.idf-sc-form-group input[type="number"]::-webkit-inner-spin-button {
	-webkit-appearance: none;
	margin: 0;
}

.idf-sc-form-description {
	font-size: 0.85em;
	opacity: 0.65;
	margin-top: 4px;
}

/* ─── Slider ───────────────────────────────────────────────────────── */

.idf-sc-slider-container {
	display: flex;
	gap: 10px;
	align-items: flex-end;
	margin-bottom: 20px;
}

.idf-sc-slider-container > div:first-child {
	flex: 1;
}

.idf-sc-slider-container input[type="range"] {
	width: 100%;
	height: 6px;
	border-radius: 3px;
	background: var(--idf-sc-border);
	outline: none;
	-webkit-appearance: none;
	appearance: none;
}

.idf-sc-slider-container input[type="range"]::-webkit-slider-thumb {
	-webkit-appearance: none;
	appearance: none;
	width: 20px;
	height: 20px;
	border-radius: 50%;
	background: var(--idf-sc-primary);
	cursor: pointer;
	box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
	transition: all 0.2s;
}

.idf-sc-slider-container input[type="range"]::-webkit-slider-thumb:hover {
	box-shadow: 0 2px 8px rgba(108, 92, 231, 0.3);
}

.idf-sc-slider-container input[type="range"]::-moz-range-thumb {
	width: 20px;
	height: 20px;
	border-radius: 50%;
	background: var(--idf-sc-primary);
	cursor: pointer;
	border: none;
	box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
	transition: all 0.2s;
}

.idf-sc-slider-container input[type="range"]::-moz-range-thumb:hover {
	box-shadow: 0 2px 8px rgba(108, 92, 231, 0.3);
}

.idf-sc-slider-value {
	text-align: right;
	font-weight: 600;
	color: var(--idf-sc-primary);
	min-width: 60px;
}

/* ─── Donut Chart ──────────────────────────────────────────────────── */

.idf-sc-chart {
	width: 200px;
	height: 200px;
	margin: 20px auto;
	position: relative;
}

.idf-sc-donut {
	width: 100%;
	height: 100%;
	border-radius: 50%;
	background: conic-gradient(
		var(--idf-sc-color-zuschuss, var(--idf-sc-primary)) 0deg,
		var(--idf-sc-color-zuschuss, var(--idf-sc-primary)) var(--donut-angle-zuschuss, 0deg),
		var(--idf-sc-color-qs, #f39c12) var(--donut-angle-zuschuss, 0deg),
		var(--idf-sc-color-qs, #f39c12) var(--donut-angle-qs, 0deg),
		var(--idf-sc-color-eigen, #dddddd) var(--donut-angle-qs, 0deg),
		var(--idf-sc-color-eigen, #dddddd) 360deg
	);
	display: flex;
	align-items: center;
	justify-content: center;
	position: relative;
}

.idf-sc-chart-center {
	position: absolute;
	width: 70%;
	height: 70%;
	background: #fff;
	border-radius: 50%;
	display: flex;
	align-items: center;
	justify-content: center;
	flex-direction: column;
	text-align: center;
}

.idf-sc-chart-percentage {
	font-size: 24px;
	font-weight: bold;
	color: var(--idf-sc-primary);
}

.idf-sc-chart-label {
	font-size: 0.7em;
	opacity: 0.65;
	text-transform: uppercase;
	margin-top: 4px;
	letter-spacing: 0.5px;
}

.idf-sc-chart-legend {
	display: flex;
	justify-content: center;
	gap: 16px;
	flex-wrap: wrap;
	margin-top: 12px;
	font-size: 0.85em;
}

.idf-sc-chart-legend-item {
	display: flex;
	align-items: center;
	gap: 6px;
}

.idf-sc-chart-legend-dot {
	width: 12px;
	height: 12px;
	border-radius: 50%;
	display: inline-block;
	flex-shrink: 0;
}

.idf-sc-legend-zuschuss {
	background: var(--idf-sc-primary);
}

.idf-sc-legend-qs {
	background: var(--idf-sc-color-qs, #f39c12);
}

.idf-sc-legend-eigen {
	background: var(--idf-sc-color-eigen, #ddd);
}

/* ─── Result Summary Table (3 columns: Position, Berechnung, Summe) ── */

.idf-sc-result-table {
	width: 100%;
	border-collapse: collapse;
	margin: 20px 0;
	background: var(--idf-sc-bg);
	border-radius: 4px;
	overflow: hidden;
	table-layout: fixed;
}

.idf-sc-result-table thead th {
	background: var(--idf-sc-table-label, #f0f0f0);
	color: #fff;
	font-weight: 600;
	text-transform: uppercase;
	font-size: 0.8em;
	letter-spacing: 0.5px;
	padding: 10px 15px;
	text-align: left;
	border-bottom: 2px solid var(--idf-sc-border);
}

.idf-sc-result-table thead th:last-child {
	text-align: right;
}

.idf-sc-result-table td {
	padding: 12px 15px;
	text-align: left;
	border-bottom: 1px solid var(--idf-sc-border);
	color: var(--idf-sc-table-content, inherit);
}

.idf-sc-result-table td.position {
	font-weight: 600;
	color: var(--idf-sc-table-label, inherit);
}

.idf-sc-result-table td.calculation {
	opacity: 0.65;
	font-size: 0.9em;
}

.idf-sc-result-table td.amount {
	text-align: right;
	font-weight: 600;
}

.idf-sc-result-table tbody tr:last-child td {
	border-bottom: none;
}

.idf-sc-result-table .highlight td {
	font-weight: 600;
	color: var(--idf-sc-table-highlight, var(--idf-sc-primary));
}

.idf-sc-result-table .highlight td.calculation {
	font-weight: 400;
}

/* ─── Result Page (saved result via UUID link) ────────────────────── */

.idf-sc-result-page-heading {
	margin: 0 0 5px 0;
}

.idf-sc-result-page-meta {
	opacity: 0.65;
	margin: 0 0 20px 0;
	font-size: 0.9em;
}

/* ─── Accordion (for hints) ────────────────────────────────────────── */

.idf-sc-accordion {
	margin: 20px 0;
	border: 1px solid var(--idf-sc-border);
	border-radius: 4px;
	overflow: hidden;
}

.idf-sc-accordion-item {
	border-bottom: 1px solid var(--idf-sc-border);
}

.idf-sc-accordion-item:last-child {
	border-bottom: none;
}

.idf-sc-accordion-header {
	padding: 15px;
	background: var(--idf-sc-bg);
	cursor: pointer;
	user-select: none;
	display: flex;
	justify-content: space-between;
	align-items: center;
	font-weight: 500;
	transition: background 0.2s;
}

.idf-sc-accordion-header:hover {
	background: #f0f0f0;
}

.idf-sc-accordion-header::after {
	content: '▼';
	display: inline-block;
	transition: transform 0.3s;
	font-size: 0.75em;
	opacity: 0.5;
}

.idf-sc-accordion-item.expanded .idf-sc-accordion-header::after {
	transform: rotate(-180deg);
}

.idf-sc-accordion-body {
	display: none;
	padding: 15px;
	background: #fff;
	text-align: left;
	color: inherit;
}

.idf-sc-accordion-item.expanded .idf-sc-accordion-body {
	display: block;
}

.idf-sc-accordion-body p {
	margin: 0;
	line-height: 1.6;
}

/* ─── Buttons ──────────────────────────────────────────────────────── */

.idf-sc-button {
	padding: 12px 24px;
	font-size: inherit;
	font-weight: 600;
	border: none;
	border-radius: 4px;
	cursor: pointer;
	transition: all 0.2s;
	text-decoration: none;
	display: inline-block;
	text-align: center;
	font-family: inherit;
}

.idf-sc-button-primary {
	background: var(--idf-sc-primary);
	color: #fff;
}

.idf-sc-button-primary:hover {
	background: var(--idf-sc-primary-hover, #5844c4);
	box-shadow: 0 4px 12px rgba(108, 92, 231, 0.3);
}

.idf-sc-button-primary:active {
	transform: translateY(1px);
}

.idf-sc-button-secondary {
	background: var(--idf-sc-bg);
	color: inherit;
	border: 1px solid var(--idf-sc-border);
}

.idf-sc-button-secondary:hover {
	background: #f0f0f0;
	border-color: #999;
}

.idf-sc-button-group {
	display: flex;
	gap: 10px;
	margin-top: 30px;
	justify-content: center;
	flex-wrap: wrap;
}

.idf-sc-button-group .idf-sc-button {
	flex: 1;
	min-width: 140px;
}

/* ─── Email Form ───────────────────────────────────────────────────── */

.idf-sc-email-section {
	/* No separator - layout handled by parent container */
}

.idf-sc-email-section h4 {
	margin: 0 0 15px 0;
	font-weight: 600;
}

.idf-sc-save-intro {
	margin: 0 0 20px 0;
}

.idf-sc-input {
	width: 100%;
	padding: 10px 14px;
	font-size: inherit;
	border: 1px solid var(--idf-sc-border);
	border-radius: 4px;
	color: inherit;
	background: #fff;
	box-sizing: border-box;
	transition: border-color 0.2s;
}

.idf-sc-input:focus {
	border-color: var(--idf-sc-primary);
	outline: none;
}

.idf-sc-privacy-field {
	margin: 15px 0;
}

.idf-sc-checkbox-label {
	display: flex;
	align-items: flex-start;
	gap: 8px;
	margin: 10px 0;
	font-size: 0.85em;
	cursor: pointer;
}

.idf-sc-checkbox-label input[type="checkbox"] {
	width: auto;
	margin-top: 3px;
	cursor: pointer;
}

.idf-sc-checkbox-label a {
	color: var(--idf-sc-primary);
	text-decoration: underline;
}

.idf-sc-save-error {
	color: #c0392b;
	font-size: 0.85em;
	margin: 10px 0;
}

/* ─── Messages ─────────────────────────────────────────────────────── */

.idf-sc-message {
	padding: 15px;
	border-radius: 4px;
	margin: 20px 0;
	line-height: 1.5;
}

.idf-sc-message-success {
	background: #d4edda;
	border: 1px solid #c3e6cb;
	color: #155724;
}

.idf-sc-message-error {
	background: #f8d7da;
	border: 1px solid #f5c6cb;
	color: #721c24;
}

.idf-sc-message-warning {
	background: #fff3cd;
	border: 1px solid #ffeaa7;
	color: #856404;
}

/* ─── Loading State ────────────────────────────────────────────────── */

.idf-sc-loading {
	text-align: center;
	padding: 40px 20px;
	opacity: 0.5;
}

.idf-sc-spinner {
	display: inline-block;
	width: 20px;
	height: 20px;
	border: 3px solid var(--idf-sc-border);
	border-top-color: var(--idf-sc-primary);
	border-radius: 50%;
	animation: spin 0.8s linear infinite;
	margin-right: 8px;
	vertical-align: middle;
}

@keyframes spin {
	to { transform: rotate(360deg); }
}

/* ─── Combined Mode Layout ────────────────────────────────────────── */

.idf-sc-combined .idf-sc-combined-form,
.idf-sc-combined .idf-sc-combined-output,
.idf-sc-combined .idf-sc-combined-donut,
.idf-sc-combined .idf-sc-combined-result,
.idf-sc-combined .idf-sc-combined-save {
	/* Sub-containers inside combined mode - no extra spacing needed */
}

.idf-sc-combined .idf-sc-combined-output {
	margin-top: 20px;
}

/* ─── Utility Classes (replacing inline styles) ──────────────────── */

.idf-sc-text-center {
	text-align: center;
}

.idf-sc-result-heading {
	margin-top: 0;
	margin-bottom: 10px;
}

.idf-sc-result-meta {
	opacity: 0.65;
	margin-bottom: 20px;
}

.idf-sc-placeholder-hint {
	opacity: 0.5;
	margin-top: 10px;
	font-size: 0.85em;
}

.idf-sc-zuschuss-amount {
	color: var(--idf-sc-table-highlight, var(--idf-sc-success));
}

.idf-sc-hidden {
	display: none;
}

/* ─── Description Module ─────────────────────────────────────────── */

.idf-sc-description {
	padding: 15px 0;
	text-align: left;
}

.idf-sc-description p {
	margin: 0 0 12px 0;
}

.idf-sc-description p:last-child {
	margin-bottom: 0;
}

/* ─── Standalone Module Placeholders ──────────────────────────────── */

.idf-sc-donut-placeholder,
.idf-sc-result-placeholder,
.idf-sc-save-placeholder {
	text-align: center;
	padding: 20px;
	opacity: 0.5;
}

/* ─── Responsive ───────────────────────────────────────────────────── */

@media (max-width: 600px) {
	.idf-sc-wrapper {
		padding: 15px;
	}

	.idf-sc-container {
		padding: 20px;
	}

	.idf-sc-steps {
		gap: 5px;
	}

	.idf-sc-step-label {
		font-size: 11px;
	}

	.idf-sc-step-circle {
		width: 40px;
		height: 40px;
		font-size: 14px;
	}

	.idf-sc-step::after {
		top: 20px;
	}

	.idf-sc-chart {
		width: 150px;
		height: 150px;
	}

	.idf-sc-chart-percentage {
		font-size: 20px;
	}

	.idf-sc-button-group {
		flex-direction: column;
	}

	.idf-sc-button-group .idf-sc-button {
		width: 100%;
	}

	.idf-sc-result-table td {
		padding: 10px 8px;
	}

	.idf-sc-result-table thead th {
		padding: 8px;
		font-size: 0.7em;
	}

	.idf-sc-result-table td.calculation {
		font-size: 0.75em;
	}
}

@media (prefers-reduced-motion: reduce) {
	* {
		animation-duration: 0.01ms !important;
		animation-iteration-count: 1 !important;
		transition-duration: 0.01ms !important;
	}
}