.src-calc-wrap {
	--src-green: #0f9d58;
	--src-green-dark: #0b7a43;
	max-width: 720px;
	margin: 0 auto;
	font-family: 'Poppins', -apple-system, BlinkMacSystemFont, "Segoe UI", Arial, sans-serif;
	color: #222;
}

.src-calc-header {
	text-align: center;
	margin-bottom: 24px;
}

.src-calc-title {
	font-size: 26px;
	font-weight: 700;
	margin: 0 0 6px;
}

.src-calc-subtitle {
	color: #666;
	font-size: 15px;
	margin: 0;
}

.src-calc-form {
	background: #fff;
	border: 1px solid #e2e2e2;
	border-radius: 10px;
	padding: 24px;
	box-shadow: 0 2px 10px rgba(0,0,0,0.04);
}

.src-row {
	display: flex;
	gap: 16px;
	margin-bottom: 16px;
}

.src-field {
	flex: 1;
	min-width: 0;
}

.src-field-empty {
	visibility: hidden;
}

.src-field label {
	display: block;
	font-weight: 500;
	font-size: 13.5px;
	margin-bottom: 6px;
}

.src-field .req {
	color: #c0392b;
}

.src-field input,
.src-field select {
	width: 100%;
	padding: 10px 12px;
	border: 1px solid #d5d5d5;
	border-radius: 6px;
	font-family: inherit;
	font-size: 14.5px;
	box-sizing: border-box;
}

.src-field input:focus,
.src-field select:focus {
	outline: none;
	border-color: var(--src-green);
	box-shadow: 0 0 0 3px rgba(15,157,88,0.14);
}

.src-hp {
	position: absolute;
	left: -9999px;
	top: -9999px;
	height: 0;
	width: 0;
	overflow: hidden;
}

.src-actions {
	text-align: center;
	margin-top: 8px;
}

.src-submit-btn {
	background: var(--src-green);
	color: #fff !important;
	border: none;
	padding: 13px 32px;
	border-radius: 6px;
	font-family: inherit;
	font-size: 15.5px;
	font-weight: 600;
	cursor: pointer;
	display: inline-flex;
	align-items: center;
	gap: 10px;
	transition: background 0.15s ease;
}

.src-submit-btn:hover,
.src-submit-btn:focus,
.src-submit-btn:active {
	background: var(--src-green-dark);
	color: #fff !important;
}

.src-submit-btn:disabled {
	opacity: 0.7;
	cursor: not-allowed;
}

.src-btn-spinner {
	width: 14px;
	height: 14px;
	border: 2px solid rgba(255,255,255,0.5);
	border-top-color: #fff;
	border-radius: 50%;
	display: inline-block;
	animation: src-spin 0.7s linear infinite;
}

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

.src-error {
	margin-top: 14px;
	background: #fdecea;
	border: 1px solid #f3b8b1;
	color: #c0392b;
	padding: 10px 14px;
	border-radius: 6px;
	font-size: 13px;
}

/* Result panel — shown after a successful submission. No calculated
   figures are displayed here on purpose; the PDF (auto-downloaded and
   emailed) carries the numbers instead. */
.src-result {
	margin-top: 28px;
	background: #fff;
	border: 1px solid #e2e2e2;
	border-radius: 10px;
	padding: 32px 24px;
	text-align: center;
}

.src-success-icon {
	width: 52px;
	height: 52px;
	line-height: 52px;
	margin: 0 auto 14px;
	border-radius: 50%;
	background: #e6f4ea;
	color: var(--src-green);
	font-size: 26px;
	font-weight: 700;
}

.src-result h3 {
	margin: 0 0 8px;
	font-size: 19px;
	font-weight: 600;
}

.src-result p {
	margin: 0 0 6px;
	font-size: 14.5px;
	color: #444;
}

.src-download-btn {
	display: inline-block;
	margin-top: 18px;
	background: var(--src-green);
	color: #fff !important;
	text-decoration: none;
	padding: 12px 26px;
	border-radius: 6px;
	font-weight: 600;
	font-size: 14.5px;
}

.src-download-btn:hover {
	background: var(--src-green-dark);
}

.src-email-note {
	margin-top: 10px;
	font-size: 12.5px;
	color: #777;
}

@media (max-width: 600px) {
	.src-row {
		flex-direction: column;
		gap: 12px;
	}
}