/* General Reset */
.dpc-calculator * {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
}

/* Container Styling */
.dpc-calculator {
    max-width: 500px;
    margin: 40px auto;
    padding: 30px;
    border-radius: 15px;
    background-color: #f5f5f5;
    border: 1px solid #e0e0e0;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
}

.dpc-calculator h2 {
    text-align: center;
    margin-bottom: 25px;
    font-size: 28px;
    color: #333;
    font-weight: 600;
    letter-spacing: -0.5px;
}

/* Form Group Styling */
.form-group {
    margin-bottom: 20px;
}

.form-group label {
    display: block;
    margin-bottom: 8px;
    font-size: 14px;
    color: #555;
    font-weight: 500;
}

.form-group label.required::after {
    content: ' *';
    color: #ff4d4d;
}

/* Input Fields Styling */
.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;
    padding: 12px;
    border: 1px solid #ddd;
    border-radius: 8px;
    font-size: 14px;
    color: #333;
    background-color: #fff;
    transition: border-color 0.3s ease, box-shadow 0.3s ease;
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    border-color: #4CAF50;
    box-shadow: 0 0 8px rgba(76, 175, 80, 0.2);
    outline: none;
}

.form-group input::placeholder,
.form-group textarea::placeholder {
    color: #999;
}

/* Textarea Styling */
.form-group textarea {
    height: 120px;
    resize: vertical;
}

/* Dropdown Styling */
.form-group select {
    appearance: none;
    background-image: url("data:image/svg+xml;charset=UTF-8,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='currentColor' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3e%3cpolyline points='6 9 12 15 18 9'%3e%3c/polyline%3e%3c/svg%3e");
    background-repeat: no-repeat;
    background-position: right 12px center;
    background-size: 16px;
}

.form-group select:hover,
.form-group select:focus {
    box-shadow: 0 0 8px rgba(76, 175, 80, 0.2);
}

/* Button Styling */
#calculate-button {
    display: block;
    width: 100%;
    padding: 14px;
    background: linear-gradient(135deg, #4CAF50, #45a049);
    color: white;
    border: none;
    border-radius: 8px;
    font-size: 16px;
    font-weight: 600;
    cursor: pointer;
    transition: background 0.3s ease, transform 0.2s ease;
}

#calculate-button:hover {
    background: linear-gradient(135deg, #45a049, #3d8b40);
    transform: translateY(-2px);
}

#calculate-button:active {
    transform: translateY(0);
}

/* Price Breakdown Styling */
.dpc-results {
    margin-top: 25px;
    padding: 20px;
    background: #fff;
    border-radius: 10px;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
    border: 1px solid rgba(255, 255, 255, 0.3);
}

.dpc-results h3 {
    margin-bottom: 15px;
    font-size: 20px;
    color: #333;
    font-weight: 600;
}

.dpc-results p {
    margin-bottom: 10px;
    font-size: 14px;
    color: #555;
}

.dpc-results p strong {
    color: #333;
    font-weight: 600;
}

/* Error & Success Messages */
.error-message {
    color: #ff4d4d;
    font-size: 12px;
    margin-top: 5px;
    display: flex;
    align-items: center;
}

.error-message::before {
    content: '⚠️';
    margin-right: 5px;
}

.success-message {
    color: #4CAF50;
    font-size: 12px;
    margin-top: 5px;
    display: flex;
    align-items: center;
}

.success-message::before {
    content: '✅';
    margin-right: 5px;
}

/* Responsive Design */
@media (max-width: 768px) {
    .dpc-calculator {
        padding: 20px;
    }

    .dpc-calculator h2 {
        font-size: 24px;
    }

    .form-group input,
    .form-group select,
    .form-group textarea {
        padding: 10px;
    }

    #calculate-button {
        padding: 12px;
        font-size: 14px;
    }

    .dpc-results {
        padding: 15px;
    }

    .dpc-results h3 {
        font-size: 18px;
    }

    .dpc-results p {
        font-size: 13px;
    }
}