body {
    font-family: 'Malgun Gothic', sans-serif;
    margin: 0;
    padding: 0;
}

a {
    text-decoration: none;
    color: #333;
}

header {
    background-color: #303eaf; 
    color: white;
    padding: 30px;
    display: flex;
    justify-content: space-between; 
    align-items: center;
}

header h1 {
    margin: 0;
    display: flex;
    align-items: center;
    font-size: 24px;
}

header h1 img {
    margin-right: 10px;
    vertical-align: middle;
}

#user_menu input {
    padding: 5px;
}

#user_menu a {
    color: white;
    margin-left: 10px;
    font-size: 14px;
}

nav {
    background-color: #333;
}

nav ul {
    list-style-type: none; 
    margin: 0;
    padding: 0;
    overflow: hidden;
    display: flex; 
    justify-content: center; 
}
nav li a {
    display: block;
    color: white;
    text-align: center;
    padding: 14px 20px;
}

nav li a:hover {
    background-color: #111; /* 마우스 올렸을 때 색상 변경 */
}


#container {
    display: flex;
    max-width: 1200px;
    margin: 20px auto; 
    gap: 20px; 
}

#left {
    width: 20%;
    background-color: #f9f9f9;
    padding: 15px;
    border: 1px solid #ddd;
}

section {
    width: 60%;
    padding: 15px;
    border: 1px solid #ddd;
}

#right {
    width: 20%;
    background-color: #f9f9f9;
    padding: 15px;
    border: 1px solid #ddd;
}

audio, video, img {
    max-width: 100%;
}

footer {
    background-color: #333;
    color: white;
    text-align: center;
    padding: 20px;
    margin-top: 20px;
    clear: both;
}