.calculator-area { background: #f9f9f9; }
.calculator-intro { max-width: 820px; margin: 0 auto 30px; text-align: center; color: #666; font-size: 16px; line-height: 1.7; }
.calculator-alert { padding: 14px 18px; border-radius: 6px; margin-bottom: 20px; }
.calculator-alert-error { background: #fdecea; color: #c0392b; border: 1px solid #f5c6cb; }
.calculator-alert-success { background: #eafaf1; color: #1e8449; border: 1px solid #c3e6cb; }

.price-calculator {
	background: #fff;
	border-radius: 10px;
	box-shadow: 0 8px 30px rgba(0,0,0,0.08);
	padding: 30px;
	max-width: 980px;
	margin: 0 auto;
}

.calc-steps {
	display: flex;
	flex-wrap: wrap;
	gap: 8px;
	margin-bottom: 30px;
	border-bottom: 1px solid #eee;
	padding-bottom: 20px;
}
.calc-step-indicator {
	flex: 1;
	min-width: 110px;
	text-align: center;
	color: #999;
	font-size: 13px;
	padding: 8px 4px;
	position: relative;
}
.calc-step-indicator span {
	display: inline-block;
	width: 28px;
	height: 28px;
	line-height: 28px;
	border-radius: 50%;
	background: #eee;
	color: #666;
	margin-bottom: 6px;
	font-weight: 700;
}
.calc-step-indicator.active { color: #333; font-weight: 600; }
.calc-step-indicator.active span { background: #c9a227; color: #fff; }

.calc-step { display: none; }
.calc-step.active { display: block; animation: calcFadeIn .3s ease; }
@keyframes calcFadeIn { from { opacity: 0; transform: translateY(8px); } to { opacity: 1; transform: none; } }

.calc-panel h3 { margin: 0 0 20px; font-size: 22px; color: #222; }
.calc-hint { color: #888; font-size: 14px; margin-top: 10px; }

.calc-category-grid, .calc-floor-grid, .calc-options-grid {
	display: grid;
	grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
	gap: 16px;
}
.calc-card, .calc-floor-card, .calc-option-card {
	display: block;
	cursor: pointer;
	margin: 0;
}
.calc-card input, .calc-floor-card input, .calc-option-card input {
	position: absolute;
	opacity: 0;
	pointer-events: none;
}
.calc-card-body, .calc-floor-body, .calc-option-body {
	border: 2px solid #e8e8e8;
	border-radius: 8px;
	padding: 18px;
	height: 100%;
	transition: border-color .2s, box-shadow .2s;
	background: #fff;
}
.calc-card:hover .calc-card-body,
.calc-floor-card:hover .calc-floor-body,
.calc-option-card:hover .calc-option-body {
	border-color: #c9a227;
}
.calc-card input:checked + .calc-card-body,
.calc-floor-card input:checked + .calc-floor-body,
.calc-option-card input:checked + .calc-option-body {
	border-color: #c9a227;
	box-shadow: 0 0 0 1px #c9a227;
	background: #fffdf5;
}
.calc-card-body strong, .calc-floor-body strong, .calc-option-body strong {
	display: block;
	margin-bottom: 8px;
	color: #222;
	font-size: 16px;
}
.calc-card-body p, .calc-floor-body p, .calc-option-body p {
	margin: 0;
	color: #666;
	font-size: 14px;
	line-height: 1.5;
}
.calc-floor-top {
	display: flex;
	justify-content: space-between;
	align-items: flex-start;
	gap: 10px;
	margin-bottom: 8px;
}
.calc-price-tag {
	background: #1a1a1a;
	color: #c9a227;
	font-size: 12px;
	padding: 4px 10px;
	border-radius: 20px;
	white-space: nowrap;
}
.calc-option-price {
	display: inline-block;
	margin-top: 10px;
	font-size: 13px;
	color: #c9a227;
	font-weight: 600;
}

.calc-nav { margin-top: 28px; display: flex; gap: 10px; flex-wrap: wrap; }
.calc-nav .btn { min-width: 120px; }

.calc-result-box {
	border: 1px solid #eee;
	border-radius: 8px;
	overflow: hidden;
	margin-bottom: 16px;
}
.calc-result-table { width: 100%; border-collapse: collapse; }
.calc-result-table td {
	padding: 12px 16px;
	border-bottom: 1px solid #f0f0f0;
	font-size: 15px;
}
.calc-result-table td:last-child { text-align: right; font-weight: 600; color: #333; }
.calc-result-table tfoot .calc-total-row td {
	background: #1a1a1a;
	color: #fff;
	font-size: 16px;
	border: none;
}
.calc-result-table tfoot .calc-total-row td:last-child { color: #c9a227; font-size: 20px; }
.calc-disclaimer { font-size: 12px; color: #888; line-height: 1.6; }

.calc-contact-box {
	background: #f8f8f8;
	border-radius: 8px;
	padding: 24px;
	border: 1px solid #eee;
}
.calc-contact-box h4 { margin: 0 0 18px; font-size: 18px; }
.calc-btn-email, .calc-btn-contact { margin-top: 10px; }
.calc-form-note { font-size: 12px; color: #888; margin-top: 12px; line-height: 1.5; }

@media (max-width: 767px) {
	.price-calculator { padding: 18px; }
	.calc-step-indicator { min-width: 80px; font-size: 11px; }
}