.calc-marketing {
    max-width: 500px;
    margin: 30px auto;
    padding: 25px;
    background: #fff;
    border-radius: 12px;
    box-shadow: 0 3px 10px rgba(0, 0, 0, 0.1);
    font-family: 'Arial', sans-serif;
}

.calc-marketing h2 {
    text-align: center;
    color: #1E88E5;
}

.calc-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 10px;
    margin-top: 10px;
}

.calc-grid label {
    grid-column: span 2;
    font-weight: bold;
    margin-top: 5px;
}

.calc-grid input {
    grid-column: span 2;
    padding: 8px;
    border: 1px solid #ccc;
    border-radius: 6px;
}

.calc-results {
    background: #f9f9f9;
    margin-top: 15px;
    padding: 10px;
    border-radius: 8px;
}

.calc-actions {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    margin-top: 15px;
}

.calc-actions button {
    flex: 1;
    padding: 10px;
    background: #1E88E5;
    color: #fff;
    border: none;
    border-radius: 6px;
    cursor: pointer;
    font-weight: bold;
}

.calc-actions button:hover {
    background: #1565C0;
}