body {
    font-family:Arial, Helvetica, sans-serif;
    padding: 20px;
}

.container {
    max-width: 400px;
    margin: 0 auto;
    padding: 20px;
    border-radius: 10px;
    background-color: #fff;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.2);
}

h1 {
    text-align: center;
    color: #333;
}

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

label {
    display: block;
    margin-bottom: 5px;
    font-weight: bold;
    color: #333;
}

.input-group {
    display: flex;
    align-items: center;
}

.input-group input[type="number"] {
    flex: 1;
    padding: 10px;
    border: 1px solid #ccc;
    border-radius: 4px;
    transition: border-color 0.3s ease;
}

.input-group input[type="number"]:focus {
    outline: none;
    border-color: #4CAF50;
}

.button-group {
    text-align: center;
    margin-bottom: 20px;
}

.button-group button {
    padding: 10px 20px;
    background-color: #4CAF50;
    color: #fff;
    border: none;
    border-radius: 4px;
    cursor: pointer;
    transition: background-color 0.3s ease;
}

.button-group button:hover {
    background-color: #45a049;
}

#result {
    font-weight: bold;
    text-align: center;
    color: #333;
}

.result-normal {
    color: #4CAF50;
}

.result-abnormal {
    color: #FF0000;
}