.epe-volume-calculator {
	background: #f8f8f8;
	border: 1px solid #e5e5e5;
	border-radius: 5px;
	padding: 25px;
	margin: 20px 0;
}

.epe-volume-calculator h3 {
	color: #487AA2;
	margin: 0 0 10px 0;
	font-size: 1.5em;
}

.calculator-inputs {
	display: grid;
	grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
	gap: 20px;
	margin: 20px 0;
}

.input-group {
	display: flex;
	flex-direction: column;
}

.input-group label {
	font-weight: bold;
	margin-bottom: 5px;
	color: #333;
}

.input-group input {
	padding: 8px 12px;
	border: 1px solid #ddd;
	border-radius: 3px;
	font-size: 16px;
}

.input-group small {
	color: #666;
	font-size: 0.9em;
	margin-top: 5px;
}

#calculate-volume {
	background-color: #487AA2;
	color: white;
	padding: 12px 25px;
	border: none;
	border-radius: 3px;
	font-size: 16px;
	font-weight: bold;
	cursor: pointer;
	margin: 10px 0;
	transition: background-color 0.3s ease;
}

#calculate-volume:hover {
	background-color: #3d6a91;
}

.calculator-results {
	margin-top: 20px;
	padding: 20px;
	background: white;
	border-radius: 5px;
	border: 1px solid #e5e5e5;
}

.result-summary h4 {
	color: #487AA2;
	margin: 0 0 10px 0;
}

.volume-result {
	font-size: 1.2em;
	font-weight: bold;
	color: #333;
	margin-bottom: 20px;
}

.product-recommendations {
	display: grid;
	gap: 15px;
}

.recommendation-item {
	padding: 15px;
	border: 2px solid #e5e5e5;
	border-radius: 5px;
	background: #f9f9f9;
	transition: all 0.3s ease;
}

.recommendation-item.recommended {
	border-color: #487AA2;
	background: #f0f8ff;
	box-shadow: 0 2px 8px rgba(72, 122, 162, 0.15);
}

.recommendation-item strong {
	color: #487AA2;
	font-size: 1.1em;
}

.quantity-needed, 
.product-description,
.contact-info {
	margin: 5px 0;
}

.product-description {
	color: #666;
	font-size: 0.95em;
	line-height: 1.4;
}

.contact-info {
	color: #487AA2;
	font-size: 0.9em;
}

.contact-info a {
	color: #487AA2;
	text-decoration: none;
}

.contact-info a:hover {
	text-decoration: underline;
}

.calculator-note {
	margin-top: 15px;
	padding: 10px;
	background: #fff3cd;
	border: 1px solid #ffeaa7;
	border-radius: 3px;
	font-size: 0.9em;
}

.calculator-note p {
	margin: 0;
}

/* Responsive Design */
@media (max-width: 768px) {
	.calculator-inputs {
		grid-template-columns: 1fr;
	}
	
	.epe-volume-calculator {
		padding: 20px;
		margin: 15px 0;
	}
	
	.input-group input {
		font-size: 16px; /* Prevents zoom on iOS */
	}
}

@media (max-width: 480px) {
	.epe-volume-calculator h3 {
		font-size: 1.3em;
	}
	
	#calculate-volume {
		width: 100%;
		padding: 15px;
	}
	
	.calculator-results {
		padding: 15px;
	}
}

/* Focus states for accessibility */
.input-group input:focus {
	outline: none;
	border-color: #487AA2;
	box-shadow: 0 0 0 2px rgba(72, 122, 162, 0.2);
}

#calculate-volume:focus {
	outline: none;
	box-shadow: 0 0 0 3px rgba(72, 122, 162, 0.3);
}

/* Loading state (optional enhancement) */
.calculator-loading {
	opacity: 0.7;
	pointer-events: none;
}

.calculator-loading #calculate-volume::after {
	content: " ...";
}