* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: Arial, sans-serif;
}

body {
    background-color: #f2f7f5;
    color: #1f2933;
    height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
}

.container {
    width: 350px;
    background-color: #ffffff;
    border-radius: 20px;
    padding: 20px;
    text-align: center;
    box-shadow: 0 10px 25px rgba(0, 0, 0, 0.1);
}

h1 {
    margin-bottom: 20px;
    color: #0f766e;
}

input {
    background-color: #f9fafb;
    color: #111827;
    padding: 10px;
    margin: 6px 0;
    height: 40px;
    border-radius: 8px;
    border: 1px solid #d1d5db;
    width: 100%;
    outline: none;
}

input:focus {
    border-color: #14b8a6;
}

button {
    background-color: #14b8a6;
    color: white;
    padding: 12px;
    margin-top: 12px;
    font-size: 16px;
    border: none;
    border-radius: 10px;
    cursor: pointer;
    width: 100%;
}

button:hover {
    background-color: #0f766e;
}

p {
    font-weight: bold;
    margin-top: 10px;
}

#bmi {
    color: #2563eb;
}

#category {
    color: #16a34a;
}