body {
    font-family: 'Noto Sans KR', sans-serif;
    line-height: 1.6;
    margin: 0;
    padding: 0;
    background: #f4f4f4;
    display: flex;
    flex-direction: column;
    align-items: center;
    min-height: 100vh;
}
header, nav, main, footer {
    max-width: 960px;
    width: 100%;
    margin: 20px auto;
    padding: 20px;
    background: #fff;
    border-radius: 8px;
    box-shadow: 0 0 10px rgba(0, 0, 0, 0.1);
    text-align: center;
}
.header-content {
    display: flex;
    align-items: center;
    justify-content: center;
}
.profile-image {
    width: 96px; /* Assuming 32 pixels/inch */
    height: 96px;
    margin-right: 20px;
    border-radius: 50%; /* Makes the image round */
}
h1, h2 {
    color: #333;
}
nav ul {
    list-style: none;
    padding: 0;
    display: flex;
    justify-content: center;
}
nav ul li {
    margin: 0 10px;
}
input[type="number"], select {
    padding: 8px;
    margin-top: 5px;
    width: 100%;
    box-sizing: border-box;
}
input[type="submit"] {
    background: #5cb85c;
    color: white;
    border: none;
    padding: 10px 20px;
    border-radius: 5px;
    cursor: pointer;
    margin-top: 10px;
}
input[type="submit"]:hover {
    background: #4cae4c;
}