.mahnoor-fba-calculator {
    max-width: 600px;
    margin: 40px auto;
    padding: 24px;
    background-color: #fff;
    border: 1px solid #e7e7e7;
    border-radius: 8px;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.05);
    font-family: 'Roboto', Arial, sans-serif;
}

.mahnoor-fba-calculator h2 {
    text-align: center;
    color: #232F3E;
    font-size: 24px;
    font-weight: 700;
    margin-bottom: 24px;
}

.mahnoor-fba-calculator form {
    display: grid;
    gap: 16px;
}

.input-group {
    position: relative;
    display: flex;
    flex-direction: column;
}

.mahnoor-fba-calculator label {
    font-size: 14px;
    font-weight: 600;
    color: #232F3E;
    margin-bottom: 8px;
}

.mahnoor-fba-calculator input {
    padding: 10px;
    font-size: 16px;
    border: 1px solid #D5D9D9;
    border-radius: 4px;
    transition: border-color 0.2s, box-shadow 0.2s;
}

.mahnoor-fba-calculator input:focus {
    outline: none;
    border-color: #FF9900;
    box-shadow: 0 0 0 3px rgba(255, 153, 0, 0.2);
}

.mahnoor-fba-calculator button {
    padding: 12px;
    background-color: #FF9900;
    color: #fff;
    border: none;
    border-radius: 4px;
    font-size: 16px;
    font-weight: 600;
    cursor: pointer;
    transition: background-color 0.2s;
}

.mahnoor-fba-calculator button:hover {
    background-color: #e68a00;
}

#result {
    margin-top: 24px;
    padding: 16px;
    background-color: #F7FAFA;
    border: 1px solid #E7E7E7;
    border-radius: 4px;
    text-align: left;
    display: none;
}

#result strong {
    display: block;
    font-size: 16px;
    font-weight: 700;
    color: #232F3E;
    margin-bottom: 12px;
}

#result p {
    margin: 8px 0;
    font-size: 14px;
    color: #111;
}

.tooltip {
    visibility: hidden;
    position: absolute;
    background-color: #232F3E;
    color: #fff;
    padding: 8px 12px;
    border-radius: 4px;
    font-size: 12px;
    line-height: 1.4;
    width: 220px;
    top: -10px;
    left: 105%;
    z-index: 10;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.2);
}

.input-group:hover .tooltip {
    visibility: visible;
}

@media (max-width: 600px) {
    .mahnoor-fba-calculator {
        margin: 20px;
        padding: 16px;
    }
    .mahnoor-fba-calculator h2 {
        font-size: 20px;
    }
    .tooltip {
        left: 0;
        top: 100%;
        width: 100%;
        margin-top: 8px;
    }
}