/* Oil Change Calculator Pro Styles */
.oil-calculator-pro-container {
    background: white;
    border: 2px solid #3498db;
    border-radius: 15px;
    padding: 2rem;
    margin: 2rem 0;
    box-shadow: 0 6px 12px rgba(0,0,0,0.15);
    max-width: 800px;
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
}

.calculator-title {
    text-align: center;
    color: #2c3e50;
    margin-bottom: 1rem;
    font-size: 1.8rem;
    font-weight: 700;
}

.calculator-description {
    text-align: center;
    margin-bottom: 2rem;
    color: #666;
    font-size: 1rem;
    line-height: 1.5;
}

.calculator-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 1.5rem;
    margin-bottom: 2rem;
}

.form-group {
    margin-bottom: 1.5rem;
}

.form-group label {
    display: block;
    margin-bottom: 0.5rem;
    font-weight: bold;
    color: #2c3e50;
    font-size: 0.95rem;
}

.form-group select,
.form-group input {
    width: 100%;
    padding: 0.8rem;
    border: 2px solid #e9ecef;
    border-radius: 5px;
    font-size: 1rem;
    transition: border-color 0.3s ease;
    background-color: #fff;
}

.form-group select:focus,
.form-group input:focus {
    outline: none;
    border-color: #3498db;
    box-shadow: 0 0 0 3px rgba(52, 152, 219, 0.1);
}

.calculate-btn {
    background: #1565c0;
    color: white;
    padding: 1rem 2rem;
    border: none;
    border-radius: 5px;
    font-size: 1.1rem;
    font-weight: bold;
    cursor: pointer;
    transition: all 0.3s ease;
    width: 100%;
}

.calculate-btn:hover {
    background: #0d47a1;
    transform: translateY(-1px);
}

.calculate-btn:disabled {
    background: #bdc3c7;
    cursor: not-allowed;
    transform: none;
}

.result-display {
    background: #e3f2fd;
    border-left: 4px solid #2196f3;
    padding: 1.5rem;
    margin-top: 1rem;
    border-radius: 5px;
    animation: slideDown 0.3s ease;
}

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

.result-display h4 {
    color: #0d47a1;
    margin-bottom: 1rem;
    font-size: 1.3rem;
}

.result-display p {
    margin-bottom: 0.5rem;
    font-size: 1rem;
}

.result-display p strong {
    color: #2c3e50;
}

.action-buttons {
    display: flex;
    flex-wrap: wrap;
    gap: 1rem;
    margin: 2rem 0;
    justify-content: center;
}

.appointment-button-wrapper,
.phone-button-wrapper {
    flex: 1;
    min-width: 200px;
    text-align: center;
}

.appointment-button {
    display: inline-block;
    background: #1565c0;
    color: white;
    padding: 1rem 2rem;
    text-decoration: none;
    border-radius: 8px;
    font-weight: bold;
    transition: all 0.3s ease;
    font-size: 1.1rem;
    letter-spacing: 0.5px;
    box-shadow: 0 4px 15px rgba(21, 101, 192, 0.3);
    text-transform: uppercase;
    border: 2px solid #1565c0;
    min-width: 280px;
    text-align: center;
}

.appointment-button:hover {
    background: #0d47a1;
    color: white;
    text-decoration: none;
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(21, 101, 192, 0.4);
    border-color: #0d47a1;
}

.phone-button {
    display: inline-block;
    background: #4caf50;
    color: white;
    padding: 1rem 2rem;
    text-decoration: none;
    border-radius: 8px;
    font-weight: bold;
    transition: all 0.3s ease;
    font-size: 1rem;
    border: 2px solid #4caf50;
    min-width: 200px;
    text-align: center;
}

.phone-button:hover {
    background: #388e3c;
    color: white;
    text-decoration: none;
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(76, 175, 80, 0.4);
    border-color: #388e3c;
}

.recommendations-list {
    background: #fff3cd;
    border-left: 3px solid #ffc107;
    padding: 1rem;
    margin: 1rem 0;
    border-radius: 5px;
}

.recommendations-list h5 {
    color: #856404;
    margin-bottom: 0.5rem;
}

.recommendations-list ul {
    margin: 0;
    padding-left: 1.5rem;
    color: #856404;
}

.calculator-disclaimer {
    margin-top: 2rem;
    padding: 1rem;
    background: #f8f9fa;
    border-radius: 5px;
    font-size: 0.9rem;
    color: #666;
    border-left: 3px solid #ffc107;
}

.calculator-disclaimer p {
    margin: 0;
    line-height: 1.4;
}

.coupon-section {
    text-align: center;
    margin: 2rem 0;
}

.coupon-image {
    max-width: 100%;
    height: auto;
    border-radius: 10px;
    box-shadow: 0 4px 8px rgba(0,0,0,0.1);
}

.error-message {
    background: #f8d7da;
    color: #721c24;
    border: 1px solid #f5c6cb;
    border-radius: 5px;
    padding: 1rem;
    margin-top: 1rem;
    display: none;
}

@media (max-width: 768px) {
    .calculator-grid {
        grid-template-columns: 1fr;
    }
    
    .oil-calculator-pro-container {
        padding: 1rem;
        margin: 1rem 0;
    }
    
    .calculator-title {
        font-size: 1.5rem;
    }
    
    .action-buttons {
        flex-direction: column;
    }
    
    .appointment-button,
    .phone-button {
        min-width: 100%;
        margin-bottom: 1rem;
    }
}