.calculator-section {
    background: var(--bg-white);
    position: relative;
    padding: 6rem 0;
}

.calculator-wrapper {
    display: grid;
    grid-template-columns: 2fr 1fr;
    gap: 3rem;
    max-width: 1200px;
    margin: 0 auto;
}

.calculator-form {
    display: flex;
    flex-direction: column;
    gap: 2.5rem;
}

.calculator-step {
    background: var(--bg-light);
    padding: 2rem;
    border-radius: 20px;
    border: 2px solid var(--border-color);
    transition: all 0.3s ease;
}

.calculator-step-title {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--text-dark);
    margin-bottom: 1.5rem;
    letter-spacing: -0.01em;
}

.calculator-options {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
    gap: 1rem;
}

.calculator-option {
    position: relative;
    cursor: pointer;
}

.calculator-option.disabled {
    cursor: not-allowed;
    opacity: 0.6;
}

.calculator-option input[type="radio"] {
    position: absolute;
    opacity: 0;
    pointer-events: none;
}

.option-content {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.75rem;
    padding: 1.5rem 1rem;
    background: var(--bg-white);
    border: 2px solid var(--border-color);
    border-radius: 16px;
    transition: all 0.3s ease;
    text-align: center;
}

.calculator-option:hover .option-content {
    border-color: var(--primary-light);
    box-shadow: var(--shadow-md);
    transform: translateY(-3px);
}

.calculator-option.disabled:hover .option-content {
    border-color: var(--border-color);
    box-shadow: none;
    transform: none;
    cursor: not-allowed;
}

.calculator-option input[type="radio"]:checked + .option-content {
    border-color: var(--primary-color);
    background: linear-gradient(135deg, rgba(30, 64, 175, 0.1) 0%, rgba(59, 130, 246, 0.1) 100%);
    box-shadow: var(--shadow-lg);
}

.calculator-option input[type="radio"]:disabled + .option-content {
    opacity: 0.6;
    cursor: not-allowed;
}

.option-icon {
    font-size: 2.5rem;
}

.option-title {
    font-size: 1.1rem;
    font-weight: 600;
    color: var(--text-dark);
}

.option-price {
    font-size: 0.95rem;
    color: var(--primary-color);
    font-weight: 600;
}

.option-desc {
    font-size: 0.85rem;
    color: var(--text-light);
}

.calculator-extras {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.calculator-extra {
    display: flex;
    align-items: center;
    padding: 1.25rem;
    background: var(--bg-white);
    border: 2px solid var(--border-color);
    border-radius: 12px;
    cursor: pointer;
    transition: all 0.3s ease;
}

.calculator-extra:hover {
    border-color: var(--primary-light);
    box-shadow: var(--shadow-sm);
}

.calculator-extra input[type="checkbox"] {
    width: 24px;
    height: 24px;
    margin-right: 1rem;
    cursor: pointer;
    accent-color: var(--primary-color);
}

.extra-content {
    flex: 1;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.extra-title {
    font-size: 1rem;
    font-weight: 600;
    color: var(--text-dark);
}

.extra-price {
    font-size: 0.95rem;
    color: var(--primary-color);
    font-weight: 600;
}

.extra-quantity {
    margin-top: 1rem;
    padding: 1rem;
    background: var(--bg-white);
    border-radius: 12px;
    border: 1px solid var(--border-color);
}

.extra-quantity label {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 1rem;
    font-size: 0.95rem;
    color: var(--text-dark);
    font-weight: 500;
}

.extra-quantity input {
    width: 80px;
    padding: 0.5rem;
    border: 2px solid var(--border-color);
    border-radius: 8px;
    font-size: 1rem;
    text-align: center;
}

.extra-quantity input:focus {
    outline: none;
    border-color: var(--primary-color);
}

.calculator-result {
    position: sticky;
    top: 100px;
    align-self: start;
}

.result-card {
    background: linear-gradient(135deg, #1E40AF 0%, #3B82F6 100%);
    padding: 2.5rem;
    border-radius: 24px;
    box-shadow: var(--shadow-xl);
    color: var(--text-white);
    position: relative;
    overflow: hidden;
}

.result-card::before {
    content: '';
    position: absolute;
    top: -50%;
    right: -50%;
    width: 200%;
    height: 200%;
    background: radial-gradient(circle, rgba(255, 255, 255, 0.1) 0%, transparent 70%);
    pointer-events: none;
}

.result-title {
    font-size: 1.5rem;
    font-weight: 700;
    margin-bottom: 1.5rem;
    position: relative;
    z-index: 1;
}

.result-breakdown {
    margin-bottom: 2rem;
    min-height: 100px;
    position: relative;
    z-index: 1;
}

.result-empty {
    color: rgba(255, 255, 255, 0.7);
    font-size: 0.95rem;
    text-align: center;
    padding: 2rem 0;
}

.result-item {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 0.75rem 0;
    border-bottom: 1px solid rgba(255, 255, 255, 0.2);
    font-size: 0.95rem;
}

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

.result-item-name {
    color: rgba(255, 255, 255, 0.9);
}

.result-item-price {
    font-weight: 600;
    color: var(--text-white);
}

.result-total {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1.5rem 0;
    border-top: 2px solid rgba(255, 255, 255, 0.3);
    margin-top: 1rem;
    position: relative;
    z-index: 1;
}

.result-total-label {
    font-size: 1.3rem;
    font-weight: 600;
    color: var(--text-white);
}

.result-total-price {
    font-size: 2rem;
    font-weight: 900;
    color: var(--text-white);
}

.result-card .btn-primary {
    width: 100%;
    margin-top: 1.5rem;
    background: var(--text-white);
    color: var(--primary-color);
    font-weight: 700;
    position: relative;
    z-index: 1;
}

.result-card .btn-primary:hover {
    background: rgba(255, 255, 255, 0.9);
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.2);
}

@media (max-width: 968px) {
    .calculator-wrapper {
        grid-template-columns: 1fr;
        gap: 2rem;
    }
    
    .calculator-result {
        position: static;
    }
    
    .calculator-options {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 768px) {
    .calculator-section {
        padding: 4rem 0;
    }
    
    .calculator-step {
        padding: 1.5rem;
    }
    
    .calculator-step-title {
        font-size: 1.3rem;
    }
    
    .result-card {
        padding: 2rem 1.5rem;
    }
    
    .result-total-price {
        font-size: 1.5rem;
    }
}