.kp-calc-container {
    background: #ffffff;
    border-radius: 20px;
    box-shadow: 0 20px 50px rgba(0,0,0,0.05);
    padding: 40px;
    max-width: 600px;
    margin: 40px auto;
    font-family: 'Inter', sans-serif;
}

.kp-calc-tabs {
    display: flex;
    gap: 10px;
    margin-bottom: 30px;
    border-bottom: 1px solid #eee;
    padding-bottom: 15px;
    overflow-x: auto;
}

.kp-tab-btn {
    background: none;
    border: none;
    padding: 10px 20px;
    font-weight: 600;
    color: #888;
    cursor: pointer;
    white-space: nowrap;
    transition: all 0.3s;
    border-radius: 8px;
}

.kp-tab-btn.active {
    background: #007bff;
    color: #fff;
}

.kp-calc-form {
    display: none;
}

.kp-calc-form.active {
    display: block;
    animation: fadeIn 0.5s ease;
}

@keyframes fadeIn {
    from { opacity: 0; transform: translateY(10px); }
    to { opacity: 1; transform: translateY(0); }
}

.kp-row {
    display: flex;
    gap: 20px;
    margin-bottom: 20px;
}

.kp-col {
    flex: 1;
}

.kp-col label {
    display: block;
    font-size: 14px;
    font-weight: 600;
    color: #444;
    margin-bottom: 8px;
}

.kp-col select, .kp-col input {
    width: 100%;
    padding: 12px 15px;
    border: 1px solid #e0e0e0;
    border-radius: 10px;
    outline: none;
    background: #fdfdfd;
    transition: border-color 0.3s;
}

.kp-col select:focus, .kp-col input:focus {
    border-color: #D32F2F;
}

.kp-calc-summary {
    background: linear-gradient(135deg, #fff5f5 0%, #ffebeb 100%);
    padding: 25px;
    border-radius: 15px;
    text-align: center;
    margin: 30px 0;
    border: 1px solid #ffcccc;
}

.kp-price-label {
    font-size: 14px;
    color: #666;
}

.kp-total-price {
    font-size: 32px;
    font-weight: 800;
    color: #D32F2F;
    margin-top: 5px;
}

.kp-actions {
    display: flex;
    gap: 15px;
}

.kp-btn-wa, .kp-btn-cart {
    flex: 1;
    padding: 15px;
    border-radius: 12px;
    font-weight: 700;
    cursor: pointer;
    border: none;
    transition: all 0.3s;
}

.kp-btn-wa {
    background: #25d366;
    color: white;
}

.kp-btn-wa:hover {
    background: #1ebd5b;
}

.kp-btn-cart {
    background: #000;
    color: white;
}

.kp-btn-cart:hover {
    background: #333;
}

@media (max-width: 600px) {
    .kp-row {
        flex-direction: column;
        gap: 15px;
    }
    .kp-actions {
        flex-direction: column;
    }
}