.fgts-calculator-card {
    max-width: 400px;
    margin: 20px auto;
    padding: 20px;
    background: #ffffff;
    border-radius: 12px;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    color: #333333;
}

.fgts-calculator-card h2 {
    margin-bottom: 16px;
    font-size: 1.5rem;
    text-align: center;
}

.fgts-calculator-card p {
    font-size: 0.9rem;
    margin-bottom: 12px;
    line-height: 1.4;
}

.fgts-input-group {
    display: flex;
    flex-direction: column;
    margin-bottom: 16px;
}

.fgts-input-group label {
    margin-bottom: 6px;
    font-weight: 600;
}

.fgts-input-group input {
    padding: 10px;
    border: 1px solid #cccccc;
    border-radius: 8px;
    font-size: 1rem;
    transition: border-color 0.3s;
}

.fgts-input-group input:focus {
    outline: none;
    border-color: #0073aa;
    box-shadow: 0 0 0 3px rgba(0, 115, 170, 0.1);
}

#fgts-calc-button {
    width: 100%;
    padding: 12px;
    background-color: #0073aa;
    color: #ffffff;
    border: none;
    border-radius: 8px;
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: background-color 0.3s, transform 0.2s;
}

#fgts-calc-button:hover {
    background-color: #005f8d;
    transform: translateY(-2px);
}

.fgts-result {
    margin-top: 20px;
    padding: 15px;
    background: #f0f8ff;
    border-radius: 8px;
    font-size: 1rem;
    text-align: center;
    box-shadow: inset 0 1px 3px rgba(0, 0, 0, 0.05);
}

@media (max-width: 480px) {
    .fgts-calculator-card {
        padding: 16px;
    }
    .fgts-calculator-card h2 {
        font-size: 1.3rem;
    }
    #fgts-calc-button {
        font-size: 0.9rem;
        padding: 10px;
    }
}