body {
    background-color: #007bff;
    font-family: 'Poppins', sans-serif;
    color: #fff;
    margin: 0;
    padding: 0;
}

.container {
    margin: 50px auto;
    padding: 30px;
    background-color: #ffffff;
    box-shadow: 0 0 20px rgba(0, 0, 0, 0.1);
    border-radius: 10px;
    color: #333;
    max-width: 1600px;
    width: 95%;
}

.item-title {
    font-size: 1.3rem;
    color: #007bff;
    margin-bottom: 15px;
    font-weight: bold;
    text-align: center;
}

.form-control {
    border-radius: 30px;
    padding: 10px 15px;
    margin-bottom: 10px;
    border: 1px solid #ced4da;
}

.input-group-text {
    border-radius: 0 30px 30px 0;
    background-color: #e9ecef;
}

.result {
    margin-top: 10px;
    font-size: 1.2rem;
    color: #007bff;
    font-weight: bold;
    background-color: #e9f7ef;
    padding: 10px;
    border-radius: 5px;
    border: 2px solid #007bff;
    display: block;
    text-align: center;
}

.result::before {
    content: "Resultado: ";
    color: #007bff;
}

.row {
    margin-bottom: 20px;
    display: flex;
    flex-wrap: wrap;
}

.col-sm-6, .col-md-4, .col-lg-3, .col-xl-2-4 {
    padding: 15px;
    box-sizing: border-box;
}

/* Responsividade */
@media (min-width: 576px) {
    .col-sm-6 {
        flex: 0 0 50%;
        max-width: 50%;
    }
}

@media (min-width: 768px) {
    .col-md-4 {
        flex: 0 0 33.333333%;
        max-width: 33.333333%;
    }
}

@media (min-width: 992px) {
    .col-lg-3 {
        flex: 0 0 25%;
        max-width: 25%;
    }
}

@media (min-width: 1400px) {
    .col-xl-2-4 {
        flex: 0 0 20%;
        max-width: 20%;
    }
    
    .item-title {
        font-size: 1.5rem;
    }
    
    .result {
        font-size: 1.3rem;
    }
}

/* Ajustes para telas pequenas */
@media (max-width: 575px) {
    .container {
        padding: 15px;
    }
    
    .col-sm-6 {
        flex: 0 0 100%;
        max-width: 100%;
    }
    
    .item-title {
        font-size: 1.2rem;
    }
}