.dac-calculator-card {
    background: #fff;
    padding: 25px;
    border-radius: 10px;
    max-width: 400px;
    margin: 20px auto;
    box-shadow: 0 5px 15px rgba(0,0,0,0.1);
    text-align: center;
    font-family: 'Poppins', sans-serif;
}

.dac-calculator-card input,
.dac-calculator-card button {
    width: 100%;
    padding: 10px;
    margin-bottom: 15px;
    border-radius: 6px;
    font-size: 1rem;
}

.dac-calculator-card button {
    background: #007bff;
    color: #fff;
    border: none;
    cursor: pointer;
}

.dac-calculator-card button:hover {
    background: #0056b3;
}

.dac-result-box {
    background: #e9f7ff;
    padding: 15px;
    border-radius: 6px;
    margin-top: 15px;
    font-size: 1.1rem;
}

@media (max-width: 480px) {
    .dac-calculator-card {
        padding: 20px 15px;
    }
    .dac-calculator-card h1 {
        font-size: 1.5rem;
    }
}