.calculator-section {
    padding: 2rem 0 5rem;
    flex: 1;
}
.calculator-container {
    display: grid;
    grid-template-columns: 1fr 400px;
    gap: 2.5rem;
    align-items: start;
}
@media (max-width: 968px) {
    .calculator-container {
        grid-template-columns: 1fr;
    }
}
.calculator-card {
    background: var(--card-bg);
    border-radius: var(--border-radius);
    box-shadow: var(--shadow-lg);
    overflow: hidden;
    border: 1px solid var(--border-color);
}
.calculator-header {
    background: var(--gradient-dark);
    padding: 2rem;
    text-align: center;
    position: relative;
    overflow: hidden;
}
.calculator-header::before {
    content: '';
    position: absolute;
    top: -50%;
    right: -50%;
    width: 100%;
    height: 200%;
    background: radial-gradient(circle, rgba(18,151,249,0.1) 0%, transparent 70%);
}
.calculator-title {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--text-primary);
}
.calculator-subtitle {
    opacity: 0.8;
    color: var(--text-secondary);
}
.calculator-body {
    padding: 2.5rem;
}
.config-step {
    margin-bottom: 2.5rem;
    padding-bottom: 2rem;
    border-bottom: 1px solid var(--border-color);
}
.config-step:last-child {
    border-bottom: none;
    margin-bottom: 0;
    padding-bottom: 0;
}
.step-title {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    font-size: 1.2rem;
    font-weight: 600;
    margin-bottom: 1.5rem;
    color: var(--text-primary);
}
.step-icon {
    width: 32px;
    height: 32px;
    background: var(--gradient);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--dark);
    font-size: 0.9rem;
}
.option-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
    gap: 1rem;
    margin-bottom: 1.5rem;
}
.option-card {
    background: var(--surface);
    border: 2px solid var(--border-color);
    border-radius: var(--border-radius-sm);
    padding: 1.5rem 1rem;
    text-align: center;
    cursor: pointer;
    transition: var(--transition);
    color: var(--text-secondary);
}
.option-card:hover {
    border-color: var(--primary);
    transform: translateY(-2px);
}
.option-card.selected {
    border-color: var(--primary);
    background: var(--dark-bg);
    box-shadow: 0 0 0 2px rgba(18,151,249,0.3);
}
.option-icon {
    font-size: 1.75rem;
    color: var(--primary);
    margin-bottom: 0.75rem;
}
.option-name {
    font-weight: 600;
    margin-bottom: 0.25rem;
    color: var(--text-primary);
}
.option-desc {
    font-size: 0.85rem;
    color: var(--text-secondary);
}
.slider-container {
    margin-bottom: 1.5rem;
}
.slider-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 1rem;
}
.slider-label {
    font-weight: 600;
    color: var(--text-secondary);
}
.slider-value {
    font-weight: 700;
    color: var(--primary);
    background: var(--surface);
    padding: 0.25rem 0.75rem;
    border-radius: 20px;
    font-size: 0.9rem;
}
.slider {
    width: 100%;
    height: 6px;
    -webkit-appearance: none;
    background: var(--border-color);
    border-radius: 3px;
    outline: none;
}
.slider::-webkit-slider-thumb {
    -webkit-appearance: none;
    width: 20px;
    height: 20px;
    background: var(--gradient);
    border-radius: 50%;
    cursor: pointer;
    transition: var(--transition);
    box-shadow: 0 0 10px rgba(18,151,249,0.3);
}
.slider::-webkit-slider-thumb:hover {
    transform: scale(1.15);
}
.slider-controls {
    display: flex;
    justify-content: space-between;
    margin-top: 0.5rem;
    color: var(--text-secondary);
    font-size: 0.85rem;
}

.summary-panel {
    position: sticky;
    top: 2rem;
}
.summary-card {
    background: var(--card-bg);
    border-radius: var(--border-radius);
    box-shadow: var(--shadow-lg);
    border: 1px solid var(--border-color);
    overflow: hidden;
}
.summary-header {
    background: var(--gradient-dark);
    padding: 1.5rem;
    text-align: center;
}
.summary-title {
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--text-primary);
}
.summary-body {
    padding: 2rem;
}
.price-display {
    text-align: center;
    margin-bottom: 2rem;
    padding-bottom: 2rem;
    border-bottom: 1px solid var(--border-color);
}
.price-amount {
    font-size: 3rem;
    font-weight: 800;
    color: var(--primary);
    line-height: 1;
    margin-bottom: 0.5rem;
}
.price-period {
    color: var(--text-secondary);
    font-size: 1rem;
}
.price-hourly {
    color: var(--text-secondary);
    font-size: 0.9rem;
    margin-top: 0.5rem;
}
.config-summary {
    margin-bottom: 2rem;
}
.summary-item {
    display: flex;
    justify-content: space-between;
    padding: 0.75rem 0;
    border-bottom: 1px solid var(--border-color);
}
.summary-item:last-child {
    border-bottom: none;
}
.summary-label {
    color: var(--text-secondary);
}
.summary-value {
    font-weight: 600;
    color: var(--text-primary);
}
.feature-badge {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    background: rgba(18,151,249,0.15);
    color: var(--primary);
    padding: 0.5rem 1rem;
    border-radius: 20px;
    font-size: 0.85rem;
    font-weight: 600;
    margin-top: 1rem;
}
.loading {
    display: inline-block;
    width: 20px;
    height: 20px;
    border: 3px solid rgba(255,255,255,.3);
    border-radius: 50%;
    border-top-color: var(--primary);
    animation: spin 1s ease-in-out infinite;
}
@keyframes spin {
    to { transform: rotate(360deg); }
}

@media (max-width: 768px) {
    .calculator-body {
        padding: 1.5rem;
    }
    .option-grid {
        grid-template-columns: repeat(auto-fit, minmax(120px, 1fr));
    }
    .price-amount {
        font-size: 2.5rem;
    }
}
@media (max-width: 480px) {
    .calculator-body {
        padding: 1rem;
    }
    .option-grid {
        grid-template-columns: 1fr 1fr;
    }
}