:root {
	--red: #e5493a;
	--blue: #1c71e8;
}

.calculator-section {
	overflow: unset;
}

.calculator-container {
	display: grid;
	grid-template-columns: 1fr 1fr;
	gap: 30px;
}

.calculator-card {
	background: white;
	border-radius: 15px;
	padding: 30px;
	box-shadow: 0 15px 35px rgba(0, 0, 0, 0.1);
	backdrop-filter: blur(10px);
}

.calculator-card-sticky {
	position: sticky;
	top: 170px;
}

.card-title {
	font-size: 1.5rem;
	font-weight: 600;
	color: #333;
	margin-bottom: 25px;
	padding-bottom: 10px;
	border-bottom: 3px solid var(--red);
}

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

.form-group label {
	display: block;
	font-weight: 600;
	color: #555;
	margin-bottom: 8px;
	font-size: 0.95rem;
}

.form-group select,
.form-group input {
	width: 100%;
	padding: 12px 15px;
	border: 2px solid #e1e5e9;
	border-radius: 8px;
	font-size: 1rem;
	transition: border-color 0.3s ease;
	background-color: #fff;
}

.form-group select:focus,
.form-group input:focus {
	outline: none;
	border-color: var(--red);
	box-shadow: 0 0 0 3px rgba(0, 123, 255, 0.1);
}

.slab-section {
	background: #f8f9fa;
	border-radius: 0 10px 10px 0;
	padding: 20px;
	margin-bottom: 20px;
	border-left: 4px solid var(--red);
}

.slab-title {
	font-weight: 600;
	color: #333;
	margin-bottom: 15px;
	font-size: 1.1rem;
}

.dimension-inputs {
	display: grid;
	grid-template-columns: 1fr 1fr;
	gap: 15px;
}

.btn {
	padding: 12px 25px;
	border: none;
	border-radius: 8px;
	font-size: 1rem;
	font-weight: 600;
	cursor: pointer;
	transition: all 0.3s ease;
	text-transform: uppercase;
	letter-spacing: 0.5px;
}

.btn-success {
	background: var(--blue);
	color: white;
	margin-bottom: 10px;
	width: 100%;
}

.btn-success:hover {
	transform: translateY(-2px);
	box-shadow: 0 5px 15px rgba(255, 255, 255, 0.3);
}

.btn-primary {
	background: var(--red);
	color: white;
	width: 100%;
	padding: 15px;
	font-size: 1.1rem;
}

.btn-primary:hover {
	transform: translateY(-2px);
	box-shadow: 0 5px 15px rgba(255, 255, 255, 0.3);
}

.btn-danger {
	background: #891d28;
	color: white;
	width: 100%;
	padding: 12px;
	margin-top: 10px;
}

.btn-danger:hover {
	transform: translateY(-2px);
	box-shadow: 0 5px 15px rgba(255, 255, 255, 0.3);
}

.cost-item {
	display: flex;
	justify-content: space-between;
	align-items: center;
	padding: 12px 0;
	border-bottom: 1px solid #e9ecef;
	font-size: 0.95rem;
}

.cost-item:last-child {
	border-bottom: none;
}

.cost-item.total {
	font-size: 1.3rem;
	font-weight: 700;
	padding: 20px 0;
	border-top: 2px solid var(--red);
	margin-top: 15px;
	color: var(--red);
}

.cost-value {
	font-weight: 600;
	color: #333;
}

.total .cost-value {
	color: var(--red);
}

@media (max-width: 768px) {
	.calculator-section {
		overflow: hidden;
	}
	.calculator-container {
		grid-template-columns: 1fr;
		gap: 20px;
	}

	.calculator-card {
		padding: 20px;
	}

	.dimension-inputs {
		grid-template-columns: 1fr;
	}
}

@media (max-width: 576px) {
	.cost-item {
		flex-direction: column;
		align-items: baseline;
	}
}