body {
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: 100vh;
    margin: 0;
    padding: 70px;
    background-color: #ffffff;
}

.main-title {
    position: fixed;
    top: 0;
    width: 100%;
    background-color: #396088;
    padding: 0px 0 0 0;
    z-index: 10;
    box-shadow: 0 2px 4px 0 rgba(0,0,0,.1);
}

.main-title h1 {
    font-size: 43px;
    color: #000000;
}

.main-nav {
    display: flex;
    justify-content: center;
    position: fixed;
    width: 100%;
    height: 60px;
    top: 90px;
    left: 0;
    right: 0;
    align-items: center;
    word-break: keep-all;
    background-color: #396088;
    border-bottom: hidden 1px #e7e7e7;
    box-shadow: 0 4px 4px 0 rgba(0,0,0,.2);
    z-index: 10;
}

.main-nav a.active {
    color: rgb(255, 255, 255);
}

.nav-box {
    display: flex;
    justify-content: center;
}
.nav-box a {
    letter-spacing: -1px;
    color: #000000;
    text-decoration: none;
    font-size: 19px;
    font-family: 'Arial', sans-serif;
}
.nav-box a:hover {
    color: #f52334;
    transition-duration: 0.5s;
} 
.nav-box a:active {
    color: #f52334;
}
.nav-box ul {
    display: flex;
    list-style: none;
}
.nav-box li {
    margin: 0 50px;
}

/* 튜토리얼 버튼 스타일 추가_여기부터*/
.tutorial-flag {
    position: absolute;
    top: 240px;
    left: 14px;
    background: linear-gradient(to left, #395588 20%, #ffffffe8 10%);
    padding: 15px 16px;
    font-weight: bold;
    font-family: Calibri, sans-serif;
    font-size: 20px;
    color: black;
    text-decoration: none;
    writing-mode: vertical-lr;
    transform: rotate(180deg);
    box-shadow: 3px 2px 5px rgba(0,0,0,0.2);
    border-radius: 0 2px 2px 0;
    
}

.tutorial-flag_Influ {
    position: absolute;
    top: 260px;
    left: 14px;
    background: linear-gradient(to left, #393F88 20%, #ffffffe8 10%);
    padding: 15px 16px;
    font-weight: bold;
    font-family: Calibri, sans-serif;
    font-size: 20px;
    color: black;
    text-decoration: none;
    writing-mode: vertical-lr;
    transform: rotate(180deg);
    box-shadow: 3px 2px 5px rgba(0,0,0,0.2);
    border-radius: 0 2px 2px 0;
    
}
/*튜토리얼 버튼 스타일 추가_여기까지 */


/*튜토리얼 페이지 스타일 추가_여기부터*/
.tutorial-page {
    background-color: #f7f7f7;
    font-family: 'Roboto' sans-serif;
    color: #333;
}


/* 수정된 부분 시작 */
.tutorial-page .main-title {
    position: fixed;
    top: 0;
    width: 100%;
    background-color: #396088;
    padding: 0px 0 0 0;
    z-index: 10;
    box-shadow: 0 2px 4px 0 rgba(0,0,0,.1);
}

.tutorial-page .main-title h1 {
    font-size: 43px;
    color: #000000;
}

.tutorial-page a {
    color: #000000;
}
/* 수정된 부분 끝 */

.tutorial-page .content {
    margin: 20px;
    padding:80px;
    padding-top: 100px;
    background-color: white;
    box-shadow: 0 2px 5px rgba(0, 0, 0, 0.1);
    border-radius: 5px;
}

.tutorial-page .content h2 {
    font-size: 30px;
}

.tutorial-page .content h3 {
    font-size: 25px;
}

.tutorial-page .example pre {
    background-color: #f8f8f8;
    padding: 0px;
    margin-top: 0px;
    font-family: 'Courier New', Courier, monospace;
    color: #333;
    white-space: pre-wrap;
}

.tutorial-page .Input-example img{
    width: 100%;
    max-width: 400px;
    display: block;
    border: 1px solid #ececec;
    box-shadow: 0 2px 5px rgba(0, 0, 0, 0.1);
}

/*튜토리얼 페이지 스타일 추가_여기까지*/


.container {
    width: 100%;
    padding: 10px;
    background-color: #fff;
    box-shadow: 0 0 10px rgba(0, 0, 0, 0.1);
    box-sizing: border-box;
}
.content {
    padding: 60px;
    box-sizing: border-box;
}

header {
    color: #333;
    padding: 20px;
    text-align: left;
}
header h1 {
    margin-bottom: 10px;
    font-size: 2.5em;
    color: #fff;
    font-weight: bold;
    text-align: left;
    -webkit-text-stroke: 1px black;
    text-shadow: 1px 1px 2px #4D4D4D, 1px 2px 2px #4D4D4D, 2px 1px 2px #4D4D4D, 2px 2px 2px #4D4D4D,
                 3px 3px 4px #4D4D4D, 3px 4px 4px #4D4D4D, 4px 3px 4px #4D4D4D, 4px 4px 4px #4D4D4D,
                 5px 5px 6px #4D4D4D, 5px 6px 6px #4D4D4D, 6px 5px 6px #4D4D4D, 6px 6px 6px #4D4D4D;
}
header h3 {
    margin-bottom: 20px;
    font-weight: bold;
    font-size: 1.5em;
    text-align: left;
    font-family: Calibri, sans-serif;
}
header p {
    text-align: left;
}

.image-container {
    float: right;
    margin-right: 20px;
}
.image-container img {
    max-width: 150px;
    height: auto;
}

fieldset {
    border: 1px solid #ccc;
    margin-bottom: 20px;
    padding: 20px;
    background-color: #fff;
    box-shadow: 2px 2px 10px rgba(0,0,0,0.1);
}
section {
    margin-bottom: 20px;
}

.virus fieldset {
    border: 1px solid #ccc;
    margin-bottom: 20px;
    padding: 20px;
    background-color: #fff;
    box-shadow: 2px 2px 10px rgba(0,0,0,0.1);
}
.virus textarea {
    width: calc(100% - 30px);
    box-sizing: border-box;
    word-wrap: break-word;
    height: 150px;
    padding: 10px;
    border: 1px solid #ccc;
    font-family: Arial, sans-serif;
    resize: none;
}

.peptide textarea {
    width: calc(100% - 30px);
    height: 150px;
    padding: 10px;
    border: 1px solid #ccc;
    font-family: Arial, sans-serif;
    resize: none;
    box-sizing: border-box;
}
.hla textarea {
    width: calc(100% - 30px);
    height: 100px;
    padding: 10px;
    border: 1px solid #ccc;
    font-family: Arial, sans-serif;
    resize: none;
    box-sizing: border-box;
}
.hla-type-selector button {
    margin: 5px;
    padding: 10px 20px;
    border: 1px solid #ccc;
    background-color: #f0f0f0;
    cursor: pointer;
    border-radius: 5px;
}
.hla-type-selector button:hover {
    background-color: #ddd;
}

.hla-list {
    display: flex;
    flex-direction: column;
    gap: 5px;
    max-height: 200px;
    width: 150px;
    overflow-y: scroll;
    margin-bottom: 20px;
    padding: 10px;
    border: 1.5px solid #dadada;
    border-radius: 5px;
    background-color: #fff;
}

.hla-list button {
    padding: 2px 5px;
    border: none;
    background-color: transparent;
    cursor: pointer;
    text-align: bottom;
}

.hla-list button:hover {
    background-color: #ddd;
}

.hla-list::-webkit-scrollbar {
    width: 7px;
}
.hla-list::-webkit-scrollbar-thumb {
    background-color: #888;
    border-radius: 4px;
}
.hla-list::-webkit-scrollbar-thumb:hover {
    background-color: #555;
}

label {
    color: #333;
    font-family: Cambria, serif;
}

.horizontal-container {
    display: flex;
    justify-content: space-between;
}
.horizontal-container fieldset {
    width: 48%;
}

.horizontal-container2 {
    width: 100%;
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.highlighted {
    font-weight: bold;
    color: black;
}

.checkbox-container {
    margin-top: 20px;
}

.button-container {
    display: flex;
    justify-content: flex-end;
}

input[type="text"] {
    width: 95%;
    height: 100px;
    padding: 10px;
    margin-bottom: 20px;
    border: 1px solid #ccc;
}
input[type="checkbox"] {
    margin-right: 10px;
}
input[type="submit"]{
    background-color: #333;
    color: #fff;
    border: none;
    padding: 10px 20px;
    cursor: pointer;
    margin-right: 10px;
    border-radius: 8px;
}
input[type="submit"]:hover{
    background-color: #555;
}