body {
    font-family: 'Montserrat', sans-serif;
    background-color: #f5f5f5;
    margin: 0;
    padding: 0;
}

header {

    padding: 15px 0;
    text-align: center;
    opacity: .9;
}


.navbar-brand {
    font-size: 36px;
    font-weight: bold;
    text-transform: uppercase;
    letter-spacing: 2px;
}


.container {
    max-width: 800px;
    margin: 20px auto;
    padding: 30px;
    background-color: #ffffff;
    border-radius: 10px;
    box-shadow: 0 0 20px rgba(0, 0, 0, 0.2);
    opacity: 0.9;
}

.btn-primary {
    border: none;
    border-radius: 5px;
    cursor: pointer;
    transition: background-color 0.3s ease;
}

.btn-primary:hover {
    background-color: #000000;
}

.btn-block {
    width: 100%;
}

.text-center {
    text-align: center;
}

#fitnessCalculator {
    margin-bottom: 20px;
}

#results {
    margin-top: 30px;
    background-color: #f5f5f5;
    padding: 20px;
    border-radius: 10px;
    box-shadow: 0 0 10px rgba(0, 0, 0, 0.2);
}

.result-item {
    margin-bottom: 20px;
    padding: 10px;
    background-color: #fff;
    border-radius: 5px;
    box-shadow: 0 0 5px rgba(0, 0, 0, 0.1);
}

.result-item h3 {
    color: #333;
    font-size: 24px;
    margin-bottom: 10px;
}

.result-item p {
    color: #555;
    font-size: 16px;
    line-height: 1.5;
}

.form-group {
    margin-bottom: 20px;
}

.form-control {
    border-radius: 5px;
    border: 1px solid #ccc;
    padding: 12px;
    transition: border-color 0.3s ease;
}

.form-control:focus {
    border-color: #530563;
}



label {
    font-weight: bold;
    color: #000000;
}

h1 {
    font-size: 36px;
    color: #333;
    text-align: center;
    margin-bottom: 20px;
}


p {
    color: #555;
    font-size: 18px;
    line-height: 1.5;
}


button {
    font-weight: bold;
    font-size: 20px;
}

body {
    background-image: url('academia.jpg');
    background-size: cover;
    background-attachment: fixed;
    background-repeat: no-repeat;
    background-position: center;
}



@media (max-width: 768px) {
    .navbar-brand {
        font-size: 24px;
    }
    
    .container {
        padding: 20px;
    }
    
    .form-control {
        font-size: 16px;
    }
    
    #results {
        padding: 10px;
    }
    
    .result-item h3 {
        font-size: 20px;
    }
    
    .result-item p {
        font-size: 14px;
    }
}