/* ================= Global Variables ================= */
:root {
    --theme-color: #1e9ba3;
    --theme-color-light: #53c6c6;
    --theme-gradient: linear-gradient(90deg, var(--theme-color) 0%, var(--theme-color-light) 100%);
    --border-color: #555;
    --text-color: #6d6d6d;
    --text-dark: #555;
    --bg-white: #fff;
    --border-mid: #d5d5d5;
    --project-tags-height: 325px;
    --project-files-height: 325px;
}

/* ================= Layout & Structure ================= */
.content-area, .site-main, .hentry { margin-bottom: 0; }

@media (min-width: 768px) {
    .col-full { max-width: 80em; }
}

/* ================= Header & Nav & Footer ================= */
.site-header { background: var(--theme-gradient) !important; border-bottom: none !important; margin-bottom: 1.618em; }
.site-header-cart { display: none; }
.pagination,.woocommerce-pagination { border-width: 0px 0; }
.site-footer { background-color: var(--bg-white); color: var(--text-color); text-align: center; padding-bottom: 5.903em; }
.footerLine { height: 3px; width: 100%; background: var(--theme-gradient); margin-bottom: 1.618em; }

@media (min-width: 768px) {
    .site-header .site-branding { width: 100% !important; float: none !important; text-align: center !important; margin-bottom: 20px !important; }
    .site-header .custom-logo-link img { margin: 0 auto !important; }
    .main-navigation ul.menu > li > a, .main-navigation ul.nav-menu > li > a { padding: 0.75em; position: relative !important; }
    .main-navigation ul.menu > li > a::after, .main-navigation ul.nav-menu > li > a::after { content: ""; display: block; width: 0; height: 3px; background-color: var(--theme-color); position: absolute; bottom: -10px; left: 50%; transform: translateX(-50%); transition: width 0.3s ease; z-index: 10; }
    .main-navigation ul.menu > li:hover > a::after, .main-navigation ul.menu > li.current-menu-item > a::after, .main-navigation ul.menu > li.current-menu-parent > a::after, .main-navigation ul.menu > li.current-menu-ancestor > a::after, .main-navigation ul.menu > li.current_page_ancestor > a::after { width: 80%; }
    .site-header-cart { display: flex; flex-direction: row-reverse; }
    .site-header-cart > li > a { display: flex; align-items: center; margin: 0.5em 0.75em; }
    .site-footer { padding-bottom: 1.618em !important; }
}

/* ================= Paper ================= */
.papers-slider { margin-bottom: 40px; }
.papers-slider-card { display: flex; flex-direction: column; height: 100%; background: #fff; }
.papers-slider-card-subtitle { padding: 0 10px; min-height: 78px; flex: 1; font-style: italic; margin-bottom: 5px; display: -webkit-box; -webkit-line-clamp: 3; -webkit-box-orient: vertical; overflow: hidden; text-overflow: ellipsis; }
.papers-slider-card-subtitle a { color: var(--text-color); }
.papers-slider-card-footer { display: flex; justify-content: space-between; align-items: center; padding-top: 12px; border-top: 1px solid var(--light-border); margin-top: auto; }
.papers-slider1-card-img img { width: 100%; border-radius: 0 0 15% 0; aspect-ratio: 1 / 1; object-fit: cover; margin-bottom: 15px; }
.papers-slider1-card-title { padding: 0 10px; min-height: 52px; flex: 1; margin-bottom: 5px; display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; text-overflow: ellipsis; }
.papers-slider1-card-title a { color: var(--text-color); font-weight:bold; }
.papers-slider2-card-img img { width: 100%; aspect-ratio: 16 / 10; object-fit: cover; margin-bottom: 15px; }
.papers-slider2-card-title { padding: 0 10px; min-height: 78px; flex: 1; margin-bottom: 5px; display: -webkit-box; -webkit-line-clamp: 3; -webkit-box-orient: vertical; overflow: hidden; text-overflow: ellipsis; }
.papers-slider2-card-title a { color: var(--theme-color); font-weight:bold; }
.paper-list-grid { display: grid; grid-template-columns: 1fr; gap: 25px; }
.paper-list-card { padding-bottom: 10px; display: flex; flex-direction: column; background: var(--bg-white); border: 1px solid var(--border-mid); transition: box-shadow 0.3s ease; }
.paper-list-detail{ padding: 0 10px; }
.paper-list-title { height: 97.64px; padding: 10px; background-color: var(--border-mid); }
.paper-list-title a { font-weight: bold; margin: 0 0 10px 0 !important; display: -webkit-box; -webkit-line-clamp: 3; -webkit-box-orient: vertical; overflow: hidden; text-overflow: ellipsis; }
.paper-list-subtitle { min-height: 78px; flex: 1; font-style: italic; margin-bottom: 5px; display: -webkit-box; -webkit-line-clamp: 3; -webkit-box-orient: vertical; overflow: hidden; text-overflow: ellipsis; }
.paper-subtitle{ font-style: italic; }
.paper-download{ margin-top: 20px; }
.paper-download-title { display: flex; flex-direction: column; justify-content: space-between; height: 50px; }
.paper-download-filename { border: 1px solid var(--text-color); padding: 2px 8px; font-size: 12px; text-decoration: none; transition: 0.2s; width: fit-content; }
.paper-download-filename a {color: var(--text-color); text-decoration: none;}
.paper-download-view { border: 2px solid var(--border-color); }
.paper-download-view iframe { border: none; width: 100%; height: 100%; }

@media (min-width: 768px) {
    .paper-list-grid { grid-template-columns: repeat(2, 1fr); }
}

/* ================= Project ================= */
.projects-hero-section { display: flex; flex-direction: column; align-items: stretch; gap: 20px; margin-bottom: 20px; width: 100%; }
.projects-hero-image { flex: 1; position: relative; overflow: hidden; min-height: 400px; }
.projects-hero-image img { position: absolute; top: 0; left: 0; width: 100%; height: 100%; object-fit: cover; object-position: top; display: block; }
.projects-hero-content { flex: 1; padding: 20px 0; display: flex; flex-direction: column; justify-content: center; }
.projects-hero-content h3 { margin-top: 0; }
.projects-hero-content p { line-height: 1.6; color: var(--text-color); margin-bottom: 15px; text-align: justify; }
.projects-list-header { width: 100%; position: relative; display: inline-block; margin-bottom: 20px; padding-right: 10px; }
.projects-list-title { font-size: 50px; color: var(--text-color); font-weight: 700; position: relative; z-index: 2; margin: 0; line-height: 1; }
.projects-list-header::after { content: ''; position: absolute; left: 0; bottom: 5px; width: 80%; height: 18px; background: var(--theme-gradient); z-index: 1; opacity: 0.8; }
.projects-list-container { border: 2px solid var(--border-color); padding: 20px; }
.project-list-card { display: flex; flex-direction: column; align-items: stretch; background: var(--bg-white); border: 1px solid var(--border-mid); margin-bottom: 25px; padding: 15px; transition: box-shadow 0.3s ease; }
.project-card-left { flex: 0 0 auto; margin: 0 0 15px 0; display: flex; align-items: center; justify-content: center; }
.project-card-left img { max-width: 100%; height: auto; display: block; }
.no-image-placeholder { width: 100%; height: 120px; background: var(--bg-white); color: var(--text-color); display: flex; align-items: center; justify-content: center; }
.project-card-middle { flex: 1; display: flex; flex-direction: column; }
.project-subtitle { font-style: italic; margin-bottom: 5px; display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; text-overflow: ellipsis; }
.project-main-title { font-weight: bold; margin: 0 0 10px 0 !important; }
.project-card-middle a, .project-contributor a, .project-orcid-link, .project-card-right a, .project-meta a, .project-rights-link a, .project-tag-item, .project-file-list li a { text-decoration: none; }
.project-card-middle a { color: var(--text-color); }
.project-excerpt { color: var(--text-dark); font-style: italic; margin-bottom: 12px; line-height: 1.5; }
.project-contributor, .project-contributor a, .project-orcid-link, .project-meta, .project-meta a { color: var(--theme-color); }
.project-contributor { display: flex; align-items: center; }
.project-contributor-label { margin-right: 6px; }
.project-orcid-icon { margin-right: 4px; vertical-align: middle; }
.project-orcid-logo { margin-right: 6px; height: 1em; width: auto; }
.project-card-right { flex: auto; margin: 15px 0 0 0; padding-top: 15px; display: flex; flex-direction: column; justify-content: flex-start; }
.project-card-right a { color: var(--text-color); word-break: break-all; }
.project-content { display: grid; grid-template-columns: 1fr; gap: 30px; margin-top: 30px; }
.project-meta { display: flex; flex-direction: column; gap: 8px; margin-top: 10px; }
.project-orcid-wrapper { display: inline-flex; align-items: center; gap: 6px; }
.project-content-area { display: flex; flex-direction: column; }
.project-tabs { display: flex; margin-bottom: -2px; position: relative; z-index: 10; }
.project-tab { padding: 8px 30px; font-weight: bold; color: var(--text-dark); border: 2px solid var(--border-color); background: #f5f5f5; margin-right: -2px; cursor: pointer; position: relative; transition: all 0.2s; }
.project-tab:hover { background: #eaeaea; }
.project-tab.active { color: var(--text-dark); background: var(--bg-white); border-bottom-color: var(--bg-white); z-index: 2; }
.project-content-box { border: 2px solid var(--border-color); padding: 30px; position: relative; z-index: 1; background: var(--bg-white); overflow-y: auto; }
.project-tab-pane { display: none; animation: fadeIn 0.3s ease; }
.project-tab-pane.active { display: block; }
@keyframes fadeIn { from { opacity: 0; transform: translateY(5px); } to { opacity: 1; transform: translateY(0); } }
.project-sidebar { margin-top: 0; display: flex; flex-direction: column; gap: 20px; align-self: start; }
.project-sidebar-widget { border: 2px solid var(--border-color); padding: 20px; }
.project-widget-title { font-weight: bold; margin: 0; }
.project-tags-container { display: flex; flex-wrap: wrap; gap: 8px; max-height: var(--project-tags-height); overflow-y: auto; align-content: flex-start; padding-right: 5px; }
.project-tag-item { border: 1px solid var(--theme-color); color: var(--theme-color); padding: 2px 8px; font-size: 12px; text-decoration: none; transition: 0.2s; }
.project-tag-item:hover { background: var(--theme-color); color: var(--bg-white); }
.project-rights-text { color: var(--theme-color); }
.project-rights-text, .project-rights-link { margin-bottom: 0; }
.project-rights-link a { color: var(--text-color); }
.project-download-header { display: flex; align-items: center; gap: 15px; margin-bottom: 15px; color: var(--theme-color); }
.project-download-header svg { width: 50px; height: 50px; fill: var(--theme-color); }
.project-download-header h3 { margin: 0; font-size: 20px; line-height: 1.1; }
.project-file-list { list-style: none; padding: 0; margin: 0; max-height: var(--project-files-height); overflow-y: auto; border: 1px solid var(--border-mid); }
.project-file-list li { border-bottom: 1px solid var(--border-mid); }
.project-file-list li a { display: flex; align-items: center; padding: 10px; color: var(--text-dark); transition: 0.2s; }
.project-file-list li a:hover { color: var(--theme-color); }
.project-file-list li a::before { content: "📄"; margin-right: 8px; }
.project-content-box::-webkit-scrollbar, .project-file-list::-webkit-scrollbar, .project-tags-container::-webkit-scrollbar { width: 8px; }
.project-content-box::-webkit-scrollbar-track, .project-file-list::-webkit-scrollbar-track, .project-tags-container::-webkit-scrollbar-track { background: #f1f1f1; }
.project-content-box::-webkit-scrollbar-thumb, .project-file-list::-webkit-scrollbar-thumb, .project-tags-container::-webkit-scrollbar-thumb { background: #ccc; }

@media (min-width: 768px) {
    .projects-hero-section { flex-direction: row; align-items: stretch; gap: 50px; margin-bottom: 50px;}
    .project-list-card { flex-direction: row; padding: 20px; }
    .project-card-left { flex: 0 0 160px; margin-right: 25px; margin-bottom: 0; }
    .project-card-right { flex: 0 0 180px; margin-left: 20px; padding-top: 5px; margin-top: 0; }
    .project-content { grid-template-columns: 2fr 1fr; }
    .project-sidebar { margin-top: 43.09px; }
}

/* ================= Project ================= */
.research-journal-article { max-width: 900px; margin: 0 auto;}
.research-journal-subtitle { font-size: 20px; font-weight: 600; color: var(--text-dark); }
.research-journal-divider { border-top: 1px solid var(--border-mid); width: 100%; margin: 16px auto; }
.research-journal-content { color: black; }
.research-journal-content p { margin-bottom: 1em;}
.research-journal-content p a { color: var(--theme-color); text-decoration: none; }
.research-journal-content h1, .research-journal-content h2, .research-journal-content h3, .research-journal-content h4 { font-weight: 600; margin-top: 1em; margin-bottom: 0.5em; }
.research-journal-content figure { margin: 2em auto 2em auto; text-align: center; font-size: 14px; color: var(--text-color); }
.research-journal-content img { max-width: 728px; width: 100%; height: auto; border-radius: 4px; display: block; margin: 0 auto; }
.research-journal-content figcaption, .research-journal-content .image-caption { margin-top: 10px; font-style: italic; text-align: center; }