@import url('https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600;700&display=swap');
@import url("https://spoqa.github.io/spoqa-han-sans/css/SpoqaHanSans-kr.css");
@import url("https://fonts.cdnfonts.com/css/fira-mono");

:root {
    /* --main-theme-color: #3693be; */
    --main-theme-color: #20639B;
    --main-gray-color: #F8F8F8;
    --content-width: 880px;
}

.my-body{
    /* background: linear-gradient(160deg, #ebf2ff, white); */
    /* background-attachment: fixed; */
    background-color: #FCFDFD;
    font-family: 'Inter', 'Spoqa Han Sans', sans-serif;
}

.navbar{
    background-color: #FFFFFF !important;
}

.footer{
    margin-top: 50px;
    background-color: var(--main-gray-color);
    height: auto;
    display: flex;
    flex-direction: column;
    padding: 20px 5px;
}

.footer *{
    margin: 5px auto;
    font-size: small;
    color: gray;
}

/* .container-narrower{
    width: 100%;
    max-width: var(--content-width);
    margin-left: auto;
    margin-right: auto;
    padding-left: 12px;
    padding-right: 12px;
} */

.custom-container{  
    /*
    화면 너비가 880px(--content-width)가 될 때까지는 100%, 이후는 880px로 고정
    */
    width: 100%;
    max-width: var(--content-width);
    margin-left: auto;
    margin-right: auto;
    padding-left: 12px;
    padding-right: 12px;
}


.sidebar{
    margin-top: 20px;
    background-color: var(--main-gray-color);
    padding: 10px;
}


@media(min-width: 1080px){ 
    /* 
     min-width: var(--content-width) + 200px로 설정 (sidebar의 최소 너비가 100px)
    */
    .sidebar{
        position: absolute;
        z-index: 1;
        top: 130px;
        width: 200px;
        right: calc(50vw - var(--content-width) / 2 - 200px);
        min-width: 100px;
    }
}

/* 제목 강조 효과 */
h1#title {
    text-align: center;
    color: var(--main-theme-color);
    margin: 20px 0 40px 0;
}

/* Post 제목의 h1은 h2와 같은 크기로 설정 */
.post-detail-header h1{
    font-size: calc(1.325rem + 0.9vw);
    font-weight: 600;
}

.post-detail-content blockquote{
    border-left: 5px solid var(--main-theme-color);
    padding-left: 10px;
}

.post-detail-content a{
    color: var(--main-theme-color);
}

/* Table Of Contents */

.post-detail-content .toc:before{
    content: "Table of Contents";
    margin-left: 20px;
    font-size: large;
    font-weight: 600;
}

.post-detail-content .toc{
    border-left: 2px solid gray;
    
}

.post-detail-content .toc li{
    list-style: none;
    margin-left: -10px;
}

.post-detail-content .toc li a{
    text-decoration: none;
    color: var(--main-theme-color)
}

.post-detail-content .katex{
    overflow-x: auto;
    overflow-y: hidden;
}

.logout-button{
    background-color: inherit;
    color: gray;
    font-weight: normal;
    border: none;
}

/* post 썸네일 */

.post-card {
    width: 100%;
}

.post-card .post-title {
    margin: 5px 0 0 0;
    font-weight: 600;
}

.post-card .post-date {
    font-size: small;
    color: #AAA;
    margin-bottom: 5px;
}

.post-card-image {
    /* Define the width of the container */
    width: 100%; /* Adjust the width as necessary */
    height: 0;
    padding-top: 60%; /* 100% / (5/3) = 60% */

    /* Style to center the container if necessary */
    display: flex;
    justify-content: center;
    align-items: center;

    /* Overflow hidden to crop the image */
    overflow: hidden;

    /* Ensuring the container has a relative position */
    position: relative;
}

.post-card-image img {
    /* Make the image cover the space of the container */
    position: absolute;
    top: 50%;
    left: 50%;
    width: 100%;
    height: 100%;
    object-fit: cover; /* This will crop the image to fill the area */
    transform: translate(-50%, -50%); /* Center the image exactly */
}

.tag {
    font-size: smaller;
    color: #555;
    text-decoration: none;
    padding: 2px 4px;
    border-radius: 4px;
    background-color: var(--main-gray-color);
    margin-right: 5px;
    white-space: nowrap;
}

.tag:hover {
    background-color: #EEE;
}

/* 상단 프로필 배너 */
#main-profile {
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
    gap: 0.75rem;
    margin: 30px;
}

.main-profile-text {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.5rem;
}

.main-profile-avatar {
    width: 104px;
    height: 104px;
    border-radius: 50%;
    overflow: hidden;
}

.main-profile-avatar img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

#main-profile .main-profile-name {
    margin: 0;
    font-size: 2rem;
    font-weight: 600;
    color: rgb(24 24 27);
}

#main-profile #main-short-desc {
    margin: 0;
    color: rgb(82 82 91);
    font-size: 1rem;
    line-height: 1.5rem;
    font-weight: 400;
}

#main-profile #main-social-icons {
    display: flex;
    flex-direction: row;
    gap: 8px;
}

#main-profile #main-social-icons .social-icon {
    width: 32px;
    height: 32px;
    padding: 6px;
    background-color: var(--main-gray-color);
    border: none;
    border-radius: 50%;
    overflow: hidden;
}

#main-profile #main-social-icons .social-icon:hover {
    background-color: #EEE;
    cursor: pointer;
}

#main-profile #main-social-icons .social-icon img {
    display: block;
    top: 0;
    width: 20px;
    height: 20px;
    border-radius: 0;
}

/* 소개글 */

#main-intro{
    font-weight: 400;
    font-size: 1.1rem;
    line-height: 25px;
    color: #373737;
    letter-spacing: -0.005em;
}

#main-intro a {
    text-decoration: none;
    color: var(--main-theme-color);
    font-weight: 500;
    border-bottom: 1px solid rgba(32, 99, 155, 0.25);
    transition: color 0.2s ease, border-color 0.2s ease;
}

#main-intro a:hover {
    color: #174b78;
    border-bottom-color: currentColor;
}

/* 최근 작성글 */
@media(min-width: 768px){
    #main-recent-posts {
        display: grid;
        grid-template-columns: 50% 50%;
        grid-column-gap: 20px;
    }
}

#main-recent-posts .post-card{
    margin-bottom: 20px;
}

#more-posts-link{
    color: var(--main-theme-color);
    text-decoration: none;
    display: block;
    text-align: right;
}

#main-news {
    margin-top: 12px;
}

#main-news.news-collapsible {
    position: relative;
}

#main-news.collapsed .news-entry.extra-news {
    display: none;
}

#main-news.expanded .news-entry.extra-news {
    animation: fadeIn 0.3s ease;
}

#main-news .news-date {
    color: var(--main-theme-color);
}

#main-news .news-entry p {
    margin-block-end: 4pt;
}

.news-toggle-btn {
    border: none;
    background: none;
    color: var(--main-theme-color);
    padding: 0;
    margin: 10px 0 0 0;
    display: inline-flex;
    align-items: center;
    gap: 6px;
    font-size: 0.95rem;
    cursor: pointer;
}

.news-toggle-btn:hover,
.news-toggle-btn:focus {
    color: #1a4770;
    text-decoration: underline;
}

.news-toggle-btn:focus {
    outline: none;
}

@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(4px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}


/* about 페이지 */

.about-content h2{
    font-size: 33px;
    text-align: center;
    margin: 30px 0;
    font-weight: 500;
    color: rgb(24 24 27);
}

.about-content hr{
    margin: 20px 0;
}

.about-content h3{
    font-size: larger;
    margin: 10px 0 0 0;
}

.about-content h4{
    font-size: large;
    margin: 5px 0 0 0;
}

.about-content a{
    text-decoration: none;
    color: inherit;
}

.about-content a:hover{
    text-decoration: underline;
}

.about-content ul{
    padding: 0;
    list-style: none;
    list-style-position:initial;
    color: #555;
}

.about-content ul.item-list{
    display: flex;
    flex-direction: row;
    flex-wrap: wrap;
    margin-top: 8px;
    gap: 8px 4px;
}

.about-content ul.item-list li{
    padding: 0px 12px;
    height: 28px;
    line-height: 28px;
    color: #555;
    background-color: var(--main-gray-color);
    border-radius: 16px;
}

.about-content li {
    list-style: none;
    list-style-position:initial;
}
.about-content ul p{
    margin: 0;
    font-size: medium;
}

.about-content ul strong{
    color: rgb(24 24 27);
}

.about-content p.time{  /* e.g. Mar. 2021 - Present */
    margin: 0;
    font-size: small;
    font-weight: 100;
    /*color: #AAA;*/
}

.about-content hr{
    border: 1px dashed gray;
}

/* posts 페이지 */

#posts{
    margin-top: 30px;
    min-height: 50vh;
}

.post-title {
    color: rgb(24 24 27);
    font-size: larger;
    margin-top: 5px;
    text-decoration: none;
}

.post-title:hover {
    text-decoration: underline;
}

/* main page publications */
#main-publications {
    margin-bottom: 2em;
}

#main-publications .publication-text {
    color: #222;
}

#main-publications .publication-title {
    color: rgb(24 24 27);
    font-size: large;
    font-weight: 600;
    line-height: 1.2;
    text-decoration: none;
    display: inline-block;
    margin-bottom: 0.5em;
}

#main-publications .publication-title:hover {
    text-decoration: underline;
}

#main-publications .publication-authors {
    line-height: 1.2;
    margin-bottom: 0.5em;
}

#main-publications .publication-journal {
    line-height: 1.2;
}

#main-publications .publication-text p {
    margin: 0 0 4px;
}

#main-publications .publication-text p:last-child {
    margin-bottom: 0;
}

#posts hr {
    margin: 20px 0;
}

.tags{
    list-style-type: none;
    padding-left: 0;
    font-size: 11pt;
    line-height: 22px;
    height: 360px;
    overflow-y: auto;
}

.tags .sidebar-tag{
    text-indent: none;
    text-decoration: none;
    color: rgb(24 24 27);
}

.tags .sidebar-tag-count{
    text-decoration: none;
    color: #888;
    font-size: smaller;
}

.sidebar #search-form{
    margin: 10px 0;
    max-height: 24px;
    display: grid;
    grid-template-columns: calc(100% - 32px) 32px;
}

.sidebar #search-form input{
    padding: 4px 5px;
    border-radius: 0;
    border: none;
}

.sidebar #search-form button{
   padding: 0;
   color: white;
   background-color: var(--main-theme-color); 
   border: none;
   border-radius: 0;
}

.sidebar #search-form button img{
    width: 16px;
    height: 16px;
    margin: auto;
    -webkit-filter: invert(100%);
    filter: invert(100%);
}

#match-count{   /* 검색시 일치하는 결과 개수 */
    font-size: large;
    color: gray;
}

/* 개별 post 페이지 */
.post-detail-header {
    margin-bottom: 20px;
}

.post-time {
    font-size: small;
    color: #AAA;
    margin-top: 0px;
    margin-bottom: 5px;
}

.post-detail-header .tag {
    margin-top: 0;
}

/* 사진의 폭 통일 */

@media (max-width: 768px){
    .post-detail-content img{
        width: 100%;
    }
}
@media (min-width: 768px){
    .post-detail-content img{
        display: block;
        max-width: 90%;
        max-height: 400px;  /* maximum height of image in a post */
        margin: 0 auto;
    }
}

.post-detail-content pre {
    line-height: 125%;
    background-color: var(--main-gray-color);
    padding: 10px;
}

.post-detail-content code {
    padding: 0px;
    border-radius: 2px;
    background-color: var(--main-gray-color);
    font-family: 'Fira Mono', 'Courier New', monospace;
    color: rgb(24 24 27);
}

.post-detail-content p{
    line-height: 170%;
}

.post-detail blockquote{
    border-left: 5px var(--main-theme-color) solid;
}


.paginator {
    list-style-type: none;
    display: flex;
    flex-direction: row;
    margin: 10px 0 20px;
}

.paginator .paginator-item{
    width: 32px;
    height: 32px;
    border-radius: 16px;
    line-height: 32px;
    text-align: center;
    color: var(--main-theme-color);
    border-width: 0;
}

.paginator .paginator-item.hidden{
    visibility: hidden;
}

.paginator .paginator-item.active{
    background-color: var(--main-theme-color);
    color: white;
}

/* Search Modal Styles */
.search-modal {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.6);
    backdrop-filter: blur(8px);
    -webkit-backdrop-filter: blur(8px);
    z-index: 9999;
    justify-content: center;
    align-items: flex-start;
    padding-top: 8vh;
}

.search-modal-content {
    background: white;
    border-radius: 12px;
    width: 90%;
    max-width: 600px;
    max-height: 70vh;
    overflow: hidden;
    box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.25);
    animation: searchModalFadeIn 0.2s ease-out;
}

@keyframes searchModalFadeIn {
    from {
        opacity: 0;
        transform: translateY(-20px) scale(0.95);
    }
    to {
        opacity: 1;
        transform: translateY(0) scale(1);
    }
}

.search-input-container {
    position: relative;
    padding: 20px;
    border-bottom: 1px solid #e5e7eb;
}

.search-input-container input {
    width: 100%;
    border: none;
    outline: none;
    font-size: 18px;
    padding: 12px 0;
    font-family: 'Inter', 'Spoqa Han Sans', sans-serif;
}

.search-input-container input::placeholder {
    color: #9ca3af;
}

.search-shortcut {
    position: absolute;
    right: 20px;
    top: 50%;
    transform: translateY(-50%);
    background: #f3f4f6;
    color: #6b7280;
    padding: 4px 8px;
    border-radius: 6px;
    font-size: 12px;
    font-weight: 500;
}

.search-results {
    max-height: calc(70vh - 80px);
    overflow-y: auto;
}

.search-placeholder,
.search-loading,
.search-no-results {
    padding: 40px 20px;
    text-align: center;
    color: #6b7280;
    font-size: 14px;
}

.search-result-item {
    padding: 16px 20px;
    border-bottom: 1px solid #f3f4f6;
    cursor: pointer;
    transition: background-color 0.1s ease;
}

.search-result-item:hover,
.search-result-item.selected {
    background-color: #f9fafb;
}

.search-result-item.selected {
    background-color: #eff6ff;
    box-shadow: inset 3px 0 0 var(--main-theme-color);
}

.search-result-item:last-child {
    border-bottom: none;
}

.search-result-title {
    font-size: 16px;
    font-weight: 600;
    color: #111827;
    margin-bottom: 4px;
    line-height: 1.4;
}

.search-result-excerpt {
    font-size: 14px;
    color: #6b7280;
    line-height: 1.5;
    margin-bottom: 8px;
}

.search-result-meta {
    display: flex;
    align-items: center;
    gap: 8px;
    flex-wrap: wrap;
}

.search-result-date {
    font-size: 12px;
    color: #9ca3af;
}

.search-result-tag {
    font-size: 11px;
    background: #f3f4f6;
    color: #6b7280;
    padding: 2px 6px;
    border-radius: 4px;
}

.search-show-all {
    padding: 16px 20px;
    border-top: 1px solid #e5e7eb;
    background: #f9fafb;
}

.search-show-all a {
    color: var(--main-theme-color);
    text-decoration: none;
    font-size: 14px;
    font-weight: 500;
}

.search-show-all a:hover {
    text-decoration: underline;
}

/* Highlight search terms */
mark {
    background: #fef3c7;
    color: #92400e;
    padding: 0 2px;
    border-radius: 2px;
}

/* Search trigger in navigation */
.search-trigger {
    display: flex;
    align-items: center;
    color: rgba(0,0,0,.55) !important;
    transition: color 0.15s ease-in-out;
    border-radius: 4px;
    border: 1px solid #dee2e6;
    padding: 2px 8px !important;
}

.search-trigger:hover {
    color: rgba(0,0,0,.7) !important;
}

.search-shortcut-nav {
    font-size: 12px;
    background: #f8f9fa;
    color: #6c757d;
    padding: 0px 4px;
    margin: 0 4px;
    border-radius: 9px;
    /* border: 1px solid #dee2e6; */
    font-weight: 500;
}

/* Mobile responsiveness */
@media (max-width: 640px) {
    .search-modal {
        padding-top: 5vh;
    }
    
    .search-modal-content {
        width: 95%;
        max-height: 80vh;
    }
    
    .search-input-container {
        padding: 16px;
    }
    
    .search-input-container input {
        font-size: 16px; /* Prevent zoom on iOS */
    }
    
    .search-result-item {
        padding: 12px 16px;
    }
    
    /* Hide Ctrl+K text and desktop text on mobile to save space */
    .search-shortcut-nav,
    .search-text-desktop {
        display: none;
    }
    
    /* Show mobile search text */
    .search-text-mobile {
        display: inline;
    }
    
    /* Make search bar span full width on mobile */
    .search-trigger {
        width: 100%;
        justify-content: flex-start;
        margin: 0 !important;
    }
}

/* Hide mobile text on desktop */
@media (min-width: 641px) {
    .search-text-mobile {
        display: none;
    }
}

/* Language toggle on post detail pages. */
.language-toggle-container {
    display: flex;
    align-items: center;
}

.language-toggle {
    display: flex;
    background: #f1f3f4;
    border-radius: 20px;
    padding: 2px;
    width: 80px;
    min-width: 80px;
}

.language-btn {
    background: transparent;
    border: none;
    padding: 6px 12px;
    margin: 0;
    border-radius: 18px;
    font-size: 12px;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.2s ease;
    color: #5f6368;
    flex: 1;
    width: 36px;
    min-width: 36px;
}

.language-btn:hover {
    background: rgba(255,255,255,0.5);
}

.language-btn.active {
    background: white;
    color: #20639B;
}

/* Author-only controls. They sit inside metadata lines such as [.post-time] rather than
   standing out as buttons, since only the blog's author ever sees them. */

.author-action{
    background-color: inherit;
    color: inherit;
    font-size: inherit;
    font-weight: normal;
    padding: 0;
    border: none;
    text-decoration: none;
}

.author-action:hover{
    text-decoration: underline;
}

/* Post editor. It always covers the viewport and locks the page behind it: the inputs
   fill the left half and the rendering the right, and only the markdown input and the
   rendering scroll. */

.editor {
    position: fixed;
    inset: 0;
    z-index: 1040;
    display: grid;
    grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
    grid-template-rows: minmax(0, 1fr);
    gap: 24px;
    padding: 16px 24px;
    background-color: #FCFDFD;
}

.editor-compose {
    display: flex;
    flex-direction: column;
    gap: 10px;
    min-height: 0;
}

body:has(.editor) {
    overflow: hidden;
}

.editor-title {
    width: 100%;
    padding: 4px 0;
    border: none;
    border-bottom: 1px solid #DEE2E6;
    background: transparent;
    font-size: 2rem;
    font-weight: 600;
    outline: none;
}

.editor-title:focus {
    border-bottom-color: var(--main-theme-color);
}

.editor-meta {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 8px 20px;
    font-size: 15px;
    color: #6C757D;
}

.editor-slug input {
    margin-left: 2px;
    padding: 2px 8px;
    border: 1px solid #DEE2E6;
    border-radius: 6px;
    color: #212529;
    font-size: 15px;
}

.editor-check {
    display: flex;
    align-items: center;
    gap: 6px;
    cursor: pointer;
}

.editor-actions {
    display: flex;
    align-items: center;
    gap: 10px;
    margin-left: auto;
}

.editor-actions .language-btn {
    padding: 3px 0;
    line-height: 1.4;
}

.editor-footer {
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.editor-back {
    padding: 5px 0;
    border: none;
    background: transparent;
    color: #6C757D;
    font-size: 15px;
}

.editor-back:hover {
    color: #212529;
}

.editor-save {
    padding: 5px 18px;
    border: none;
    border-radius: 20px;
    background-color: var(--main-theme-color);
    color: white;
    font-size: 14px;
    font-weight: 500;
}

.editor-save:hover {
    filter: brightness(1.1);
}

.editor-save:disabled {
    opacity: 0.6;
    cursor: default;
}

.editor-error {
    margin: 0;
    font-size: small;
    color: #B02A37;
}

.editor-input,
.editor-preview {
    min-height: 0;
    overflow-y: auto;
    padding: 12px 16px;
}

.editor-input {
    flex: 1;
    border: 1px solid #DEE2E6;
    border-radius: 8px;
    background-color: transparent;
    resize: none;
    font-family: 'Fira Mono', monospace;
    font-size: 14px;
    line-height: 1.6;
    outline: none;
}

.editor-input:focus {
    border-color: var(--main-theme-color);
}

@media (max-width: 768px) {
    .editor {
        padding: 12px;
        grid-template-columns: minmax(0, 1fr);
        grid-template-rows: minmax(0, 1fr) minmax(0, 1fr);
        gap: 12px;
    }

    .editor-actions {
        margin-left: 0;
    }
}

/* The author's [New post] button under the post list. */

.author-actions {
    display: flex;
    justify-content: flex-end;
    margin-top: 16px;
}

.new-post-button {
    padding: 5px 18px;
    border-radius: 20px;
    background-color: var(--main-theme-color);
    color: white;
    font-size: 14px;
    font-weight: 500;
    text-decoration: none;
}

.new-post-button:hover {
    color: white;
    filter: brightness(1.1);
}

/* The editor's [Insert image] button: an icon labelling a hidden file input. */

.editor-image-button {
    display: flex;
    align-items: center;
    cursor: pointer;
    opacity: 0.8;
    transition: opacity 0.2s ease;
}

.editor-image-button:hover {
    opacity: 1;
}

.editor-image-button.uploading {
    cursor: progress;
    opacity: 0.4;
}

.editor-image-button img {
    width: 20px;
    height: 20px;
}

.editor-image-button input {
    display: none;
}

/* The editor's tags: the post cards' [.tag], each with a button to remove it, followed by
   the input for the next one. */

.editor-tags {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    row-gap: 6px;
    font-size: 14px;
}

.editor-tags .tag button {
    padding: 0 0 0 4px;
    border: none;
    background: transparent;
    color: inherit;
    line-height: 1;
}

.editor-tags input {
    flex: 1;
    min-width: 120px;
    border: none;
    background: transparent;
    outline: none;
    color: #212529;
}