/* Pay Per Word Calculator Styles */
.ppw-calculator {
    max-width: 600px; /* Default max-width for smaller screens */
    margin: 20px auto;
    padding: 30px;
    background: #ffffff;
    border: 2px solid #e0e0e0;
    border-radius: 15px;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
}

.ppw-calculator h3 {
    text-align: center;
    margin-bottom: 25px;
    font-size: 28px;
    color: #333;
    font-weight: 600;
}

.ppw-radio-group {
    display: flex;
    justify-content: center;
    gap: 30px;
    margin-bottom: 25px;
    flex-wrap: wrap;
}

.ppw-radio-option {
    display: flex;
    align-items: center;
    gap: 8px;
}

.ppw-radio-option input[type="radio"] {
    width: 18px;
    height: 18px;
    accent-color: #1e88e5;
}

.ppw-radio-option label {
    font-size: 16px;
    color: #555;
    cursor: pointer;
    font-weight: 500;
}

.ppw-field {
    margin-bottom: 20px;
}

.ppw-field label {
    display: block;
    margin-bottom: 8px;
    font-size: 16px;
    color: #333;
    font-weight: 500;
}

.ppw-field input[type="number"] {
    width: 100%;
    padding: 15px;
    border: 2px solid #ddd;
    border-radius: 8px;
    font-size: 16px;
    box-sizing: border-box;
    transition: border-color 0.3s ease;
}

.ppw-field input[type="number"]:focus {
    outline: none;
    border-color: #1e88e5;
    box-shadow: 0 0 0 3px rgba(30, 136, 229, 0.1);
}

.ppw-calculate-btn {
    width: 100%;
    padding: 18px;
    background: #1e88e5;
    color: white;
    border: none;
    border-radius: 8px;
    font-size: 18px;
    font-weight: 600;
    cursor: pointer;
    transition: background-color 0.3s ease;
    margin-bottom: 20px;
}

.ppw-calculate-btn:hover {
    background: #1565c0;
}

.ppw-calculate-btn:active {
    transform: translateY(1px);
}

.ppw-result {
    margin-top: 20px;
    text-align: center;
}

.ppw-success {
    padding: 15px;
    background: #e8f5e8;
    color: #2e7d32;
    border: 2px solid #4caf50;
    border-radius: 8px;
    font-size: 18px;
    font-weight: 600;
}

.ppw-error {
    padding: 15px;
    background: #ffebee;
    color: #c62828;
    border: 2px solid #f44336;
    border-radius: 8px;
    font-size: 16px;
    font-weight: 600;
    animation: blink 1.5s infinite;
}

@keyframes blink {
    0%, 50% { opacity: 1; }
    51%, 100% { opacity: 0.3; }
}

.ppw-field[style*="display: none"] {
    display: none !important;
}

/* Responsive Design */
@media (max-width: 768px) {
    .ppw-calculator {
        margin: 10px;
        padding: 20px;
    }
    
    .ppw-calculator h3 {
        font-size: 24px;
        margin-bottom: 20px;
    }
    
    .ppw-radio-group {
        flex-direction: column;
        align-items: center;
        gap: 15px;
    }
    
    .ppw-field input[type="number"] {
        padding: 12px;
        font-size: 16px;
    }
    
    .ppw-calculate-btn {
        padding: 15px;
        font-size: 16px;
    }
    
    .ppw-success, .ppw-error {
        font-size: 16px;
        padding: 12px;
    }
}

@media (max-width: 480px) {
    .ppw-calculator {
        margin: 5px;
        padding: 15px;
    }
    
    .ppw-calculator h3 {
        font-size: 20px;
    }
    
    .ppw-radio-option label {
        font-size: 14px;
    }
    
    .ppw-field label {
        font-size: 14px;
    }
    
    .ppw-field input[type="number"] {
        padding: 10px;
        font-size: 14px;
    }
    
    .ppw-calculate-btn {
        padding: 12px;
        font-size: 14px;
    }
    
    .ppw-success, .ppw-error {
        font-size: 14px;
        padding: 10px;
    }
}

/* High DPI displays */
@media (-webkit-min-device-pixel-ratio: 2), (min-resolution: 192dpi) {
    .ppw-calculator {
        border-width: 1px;
    }
    
    .ppw-field input[type="number"] {
        border-width: 1px;
    }
    
    .ppw-success, .ppw-error {
        border-width: 1px;
    }
}