.curp-calculator-container {
    max-width: 600px;
    margin: 0 auto;
    padding: 20px;
    background-color: #f9f9f9;
    border-radius: 8px;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
    font-family: Arial, sans-serif;
}

.curp-calculator-container h2 {
    color: #2c3e50;
    text-align: center;
    margin-bottom: 15px;
}

.curp-description {
    color: #7f8c8d;
    text-align: center;
    margin-bottom: 25px;
}

.form-group {
    margin-bottom: 15px;
}

.form-group label {
    display: block;
    margin-bottom: 5px;
    font-weight: bold;
    color: #34495e;
}

.form-group input[type="text"],
.form-group select {
    width: 100%;
    padding: 10px;
    border: 1px solid #ddd;
    border-radius: 4px;
    font-size: 16px;
}

.curp-calculate-btn {
    background-color: #3498db;
    color: white;
    border: none;
    padding: 12px 20px;
    border-radius: 4px;
    cursor: pointer;
    font-size: 16px;
    width: 100%;
    transition: background-color 0.3s;
}

.curp-calculate-btn:hover {
    background-color: #2980b9;
}

.curp-result {
    margin-top: 25px;
    padding: 15px;
    background-color: #e8f4fc;
    border-radius: 4px;
    border-left: 4px solid #3498db;
}

.curp-result h3 {
    margin-top: 0;
    color: #2c3e50;
}

.curp-code {
    font-size: 24px;
    font-weight: bold;
    letter-spacing: 2px;
    color: #e74c3c;
    margin: 15px 0;
    padding: 10px;
    background-color: white;
    border-radius: 4px;
    text-align: center;
}

.curp-disclaimer {
    font-size: 14px;
    color: #7f8c8d;
}

.curp-error {
    margin-top: 25px;
    padding: 15px;
    background-color: #fdecea;
    border-radius: 4px;
    border-left: 4px solid #e74c3c;
    color: #c0392b;
}

/* Responsive */
@media (max-width: 480px) {
    .curp-calculator-container {
        padding: 15px;
    }
    
    .curp-code {
        font-size: 18px;
    }
}