:root{--bg: #fff;--bg-alt: #f0f4f8;--card-bg: #fff;--text: #1e293b;--text-muted: #64748b;--border: #e2e8f0;--primary: #1a365d;--secondary: #2563eb;--accent: #0891b2}html[data-theme="dark"]{--bg: #0f172a;--bg-alt: #1e293b;--card-bg: #1e293b;--text: #e2e8f0;--text-muted: #94a3b8;--border: #334155}*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}html{scroll-behavior:smooth;-webkit-font-smoothing:antialiased}body{font-family:'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;background:var(--bg);color:var(--text);line-height:1.6;transition:background 0.3s ease, color 0.3s ease}a{color:var(--secondary);text-decoration:none;transition:color 0.2s}a:hover{color:var(--accent)}img{max-width:100%;height:auto}.site-header{position:sticky;top:0;z-index:100;background:var(--bg);border-bottom:1px solid var(--border);backdrop-filter:blur(12px);background:rgba(var(--bg), 0.92)}html[data-theme="dark"] .site-header{background:rgba(15,23,42,0.92)}html:not([data-theme="dark"]) 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1fr);gap:1.5rem}@media (max-width: 768px){.research-grid{grid-template-columns:1fr}}.research-grid--home{grid-template-columns:repeat(4, 1fr)}@media (max-width: 1024px){.research-grid--home{grid-template-columns:repeat(2, 1fr)}}@media (max-width: 768px){.research-grid--home{grid-template-columns:1fr}}.research-card{background:var(--card-bg);border:1px solid var(--border);border-radius:14px;padding:2rem 1.5rem;text-align:center;transition:all 0.25s ease}.research-card:hover{transform:translateY(-4px);box-shadow:0 12px 32px rgba(0,0,0,0.08)}.research-card .research-icon{width:56px;height:56px;border-radius:12px;background:linear-gradient(135deg, rgba(37,99,235,0.1), rgba(8,145,178,0.1));display:flex;align-items:center;justify-content:center;margin:0 auto 1.2rem;font-size:1.4rem;color:var(--secondary)}.research-card h3{font-size:1.15rem;font-weight:700;margin-bottom:0.75rem}.research-card p{font-size:0.9rem;line-height:1.7;color:var(--text-muted)}html[data-theme="dark"] .research-card .research-icon{background:linear-gradient(135deg, rgba(37,99,235,0.15), rgba(8,145,178,0.15))}.tag-list{margin-top:0.75rem}.tag{display:inline-block;font-size:0.75rem;padding:0.2rem 0.65rem;border-radius:99px;background:rgba(37,99,235,0.08);color:var(--secondary);margin:0.3rem 0.15rem 0;font-weight:500}.tag-sm{display:inline-block;font-size:0.7rem;padding:0.15rem 0.5rem;border-radius:99px;background:rgba(8,145,178,0.08);color:#0891b2;font-weight:500}html[data-theme="dark"] .tag{background:rgba(37,99,235,0.15)}html[data-theme="dark"] .tag-sm{background:rgba(8,145,178,0.15)}.team-grid{display:grid;grid-template-columns:repeat(auto-fill, minmax(140px, 1fr));gap:1.5rem;margin-top:2rem}.team-card{text-align:center}.team-card .team-avatar{width:80px;height:80px;border-radius:50%;background:linear-gradient(135deg, rgba(37,99,235,0.15), rgba(8,145,178,0.15));display:flex;align-items:center;justify-content:center;margin:0 auto 0.75rem;overflow:hidden;border:3px solid var(--border)}.team-card 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640px){.professor-card{flex-direction:column;align-items:center;text-align:center;gap:1.5rem}}.professor-photo{flex-shrink:0}.professor-photo img{width:180px;height:220px;object-fit:cover;border-radius:12px}.professor-info{flex:1}.professor-info h2{font-size:1.5rem;font-weight:700;margin-bottom:0.25rem}.professor-info .name-local{font-weight:400;font-size:1rem;color:var(--text-muted)}.professor-info .professor-title{color:var(--text-muted);font-size:0.95rem;margin-bottom:0.75rem}.professor-info .professor-bio{font-size:0.92rem;line-height:1.7;margin-bottom:1rem}.professor-tags{display:flex;flex-wrap:wrap;gap:0.4rem;margin-bottom:1rem}.professor-links{display:flex;gap:0.75rem;flex-wrap:wrap}.professor-links a{display:inline-flex;align-items:center;gap:0.4rem;font-size:0.85rem;color:var(--secondary);padding:0.35rem 0.85rem;border-radius:6px;border:1px solid rgba(37,99,235,0.2);transition:all 0.2s}.professor-links a:hover{background:rgba(37,99,235,0.08)}.category-title{font-size:1.3rem;font-weight:700;margin-bottom:1.5rem;padding-bottom:0.5rem;border-bottom:2px solid var(--border);max-width:1200px;margin-left:auto;margin-right:auto}.category-title .count{font-weight:400;font-size:0.9rem;color:var(--text-muted);margin-left:0.5rem}.students-grid{display:grid;grid-template-columns:repeat(auto-fill, minmax(280px, 1fr));gap:1.2rem;margin-bottom:3rem;max-width:1200px;margin-left:auto;margin-right:auto}.student-card{display:flex;gap:1rem;padding:1.25rem;background:var(--card-bg);border:1px solid var(--border);border-radius:10px;transition:all 0.2s}.student-card:hover{box-shadow:0 4px 16px rgba(0,0,0,0.06)}.student-avatar{width:50px;height:50px;border-radius:50%;background:linear-gradient(135deg, rgba(37,99,235,0.12), rgba(8,145,178,0.12));display:flex;align-items:center;justify-content:center;flex-shrink:0}.student-avatar 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.alumni-name{font-weight:600;font-size:0.95rem}.alumni-info .alumni-degree{font-size:0.85rem;color:var(--text-muted)}.alumni-info .alumni-thesis{font-size:0.85rem;color:var(--text-muted);margin-top:0.2rem}.alumni-info .alumni-thesis a{color:var(--secondary)}.site-footer{border-top:1px solid var(--border);background:var(--bg-alt);padding:3rem 1.5rem 0}.footer-inner{max-width:1200px;margin:0 auto;display:grid;grid-template-columns:1.5fr 2fr;gap:3rem;padding-bottom:2rem}@media (max-width: 640px){.footer-inner{grid-template-columns:1fr;gap:2rem}}.footer-brand{font-size:1.2rem;margin-bottom:0.5rem}.footer-brand .logo-mark{font-weight:800;color:var(--secondary)}.footer-brand .logo-text{font-weight:500}.footer-info p{font-size:0.9rem;color:var(--text-muted);margin-bottom:0.5rem}.footer-info .footer-affil{font-size:0.85rem}.footer-info .footer-affil a{color:var(--text-muted)}.footer-info .footer-affil a:hover{color:var(--secondary)}.footer-links{display:grid;grid-template-columns:repeat(3, 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.topic-header>i{background:linear-gradient(135deg, rgba(37,99,235,0.15), rgba(8,145,178,0.15))}.papers-list{display:flex;flex-direction:column;gap:1rem}.paper-item{background:var(--card-bg);border:1px solid var(--border);border-radius:12px;padding:1.5rem;transition:all 0.2s ease}.paper-item:hover{box-shadow:0 4px 16px rgba(0,0,0,0.06)}.paper-status-badge{display:inline-block;font-size:0.72rem;font-weight:600;padding:0.2rem 0.7rem;border-radius:99px;margin-bottom:0.75rem;text-transform:uppercase;letter-spacing:0.03em}.paper-status-badge.published{background:rgba(16,185,129,0.12);color:#059669}.paper-status-badge.under-review{background:rgba(37,99,235,0.1);color:#2563eb}.paper-status-badge.revise--resubmit,.paper-status-badge.revise-resubmit{background:rgba(245,158,11,0.12);color:#d97706}.paper-status-badge.revision-invited{background:rgba(245,158,11,0.12);color:#d97706}.paper-status-badge.working-paper{background:rgba(8,145,178,0.1);color:#0891b2}.paper-status-badge.work-in-progress{background:rgba(139,92,246,0.1);color:#7c3aed}.paper-status-badge.thesis{background:rgba(107,114,128,0.1);color:#6b7280}html[data-theme="dark"] .paper-status-badge.published{background:rgba(16,185,129,0.2);color:#34d399}html[data-theme="dark"] .paper-status-badge.under-review{background:rgba(37,99,235,0.2);color:#6b95f1}html[data-theme="dark"] .paper-status-badge.revise--resubmit,html[data-theme="dark"] .paper-status-badge.revise-resubmit,html[data-theme="dark"] .paper-status-badge.revision-invited{background:rgba(245,158,11,0.2);color:#fbbf24}html[data-theme="dark"] .paper-status-badge.working-paper{background:rgba(8,145,178,0.2);color:#12c8f4}html[data-theme="dark"] .paper-status-badge.work-in-progress{background:rgba(139,92,246,0.2);color:#a78bfa}html[data-theme="dark"] .paper-status-badge.thesis{background:rgba(156,163,175,0.2);color:#9ca3af}.paper-title{font-size:1.05rem;font-weight:600;line-height:1.5;margin-bottom:0.5rem}.paper-authors{font-size:0.88rem;color:var(--text-muted);line-height:1.6;margin-bottom:0.5rem}.paper-authors strong{color:var(--text);font-weight:600}.paper-venue{font-size:0.85rem;color:var(--text-muted);margin-bottom:0.35rem}.paper-venue i{margin-right:0.35rem;color:var(--secondary);font-size:0.8rem}.paper-venue .venue-note{font-size:0.78rem;color:var(--accent);font-weight:500}.paper-award{font-size:0.85rem;color:#d97706;font-weight:600;margin-bottom:0.35rem}.paper-award i{margin-right:0.35rem}html[data-theme="dark"] .paper-award{color:#fbbf24}.paper-links{display:flex;flex-wrap:wrap;gap:0.5rem;margin-top:0.75rem}.paper-links a{display:inline-flex;align-items:center;gap:0.35rem;font-size:0.8rem;font-weight:500;padding:0.3rem 0.75rem;border-radius:6px;border:1px solid rgba(37,99,235,0.2);color:var(--secondary);transition:all 0.2s}.paper-links a:hover{background:rgba(37,99,235,0.08);border-color:var(--secondary)}.paper-links a i{font-size:0.75rem}.courses-grid{display:flex;flex-direction:column;gap:2rem}.course-card{background:var(--card-bg);border:1px solid var(--border);border-radius:14px;padding:2rem;transition:all 0.25s ease}.course-card:hover{box-shadow:0 8px 24px rgba(0,0,0,0.06)}.course-icon{width:48px;height:48px;border-radius:12px;background:linear-gradient(135deg, rgba(37,99,235,0.1), rgba(8,145,178,0.1));display:flex;align-items:center;justify-content:center;margin-bottom:1.25rem;font-size:1.3rem;color:var(--secondary)}html[data-theme="dark"] .course-icon{background:linear-gradient(135deg, rgba(37,99,235,0.15), rgba(8,145,178,0.15))}.course-header{display:flex;align-items:center;gap:0.75rem;margin-bottom:0.5rem}.course-code{font-size:0.82rem;font-weight:600;color:var(--text-muted);font-family:'Inter', monospace}.course-series{font-size:0.7rem;font-weight:600;padding:0.15rem 0.6rem;border-radius:99px;text-transform:uppercase;letter-spacing:0.04em}.course-series.graduate{background:rgba(37,99,235,0.1);color:#2563eb}.course-series.ug\/grad{background:rgba(8,145,178,0.1);color:#0891b2}html[data-theme="dark"] .course-series.graduate{background:rgba(37,99,235,0.2)}html[data-theme="dark"] .course-series.ug\/grad{background:rgba(8,145,178,0.2)}.course-title{font-size:1.35rem;font-weight:700;margin-bottom:0.75rem;letter-spacing:-0.01em}.course-meta{display:flex;flex-wrap:wrap;gap:1rem;margin-bottom:1rem}.course-meta span{font-size:0.85rem;color:var(--text-muted);display:inline-flex;align-items:center;gap:0.4rem}.course-meta span i{font-size:0.78rem;color:var(--secondary)}.course-desc{font-size:0.92rem;line-height:1.7;color:var(--text-muted);margin-bottom:1.25rem}.course-topics{margin-bottom:1.25rem}.course-topics h4{font-size:0.82rem;font-weight:600;text-transform:uppercase;letter-spacing:0.04em;color:var(--text-muted);margin-bottom:0.6rem}.topic-tags{display:flex;flex-wrap:wrap;gap:0.4rem}.topic-tag{display:inline-block;font-size:0.75rem;padding:0.2rem 0.65rem;border-radius:99px;background:rgba(37,99,235,0.08);color:var(--secondary);font-weight:500}html[data-theme="dark"] .topic-tag{background:rgba(37,99,235,0.15)}.btn-sm{padding:0.5rem 1.1rem;font-size:0.85rem;border-radius:6px}.professor-card--page .professor-bio{display:none}.people-list{display:flex;flex-direction:column;gap:1.25rem;margin-bottom:3rem}.people-profile-card{display:flex;gap:1.25rem;padding:1.5rem;background:var(--card-bg);border:1px solid var(--border);border-radius:12px;transition:all 0.2s ease}.people-profile-card:hover{box-shadow:0 6px 20px rgba(0,0,0,0.06);border-color:rgba(37,99,235,0.2)}html[data-theme="dark"] .people-profile-card:hover{box-shadow:0 6px 20px rgba(0,0,0,0.25)}.people-profile-card--wide{padding:1.75rem}.people-profile-card--alumni{padding:1.25rem 1.5rem}.profile-photo{width:80px;height:80px;border-radius:50%;flex-shrink:0;overflow:hidden;background:linear-gradient(135deg, rgba(37,99,235,0.12), rgba(8,145,178,0.12));display:flex;align-items:center;justify-content:center;border:3px solid var(--border)}.profile-photo img{width:100%;height:100%;object-fit:cover}.profile-photo--lg{width:100px;height:100px;border-width:3px}.profile-photo--sm{width:60px;height:60px}html[data-theme="dark"] .profile-photo{background:linear-gradient(135deg, rgba(37,99,235,0.18), rgba(8,145,178,0.18))}.photo-clickable{cursor:pointer;transition:transform 0.2s ease, filter 0.2s ease}.photo-clickable:hover{transform:scale(1.05);filter:brightness(1.1)}.profile-initials{font-size:1.3rem;font-weight:700;color:var(--secondary);letter-spacing:-0.02em}.profile-initials--lg{font-size:1.7rem}.profile-photo--sm .profile-initials{font-size:1rem}.profile-body{flex:1;min-width:0}.profile-name{font-size:1.05rem;font-weight:700;margin-bottom:0.35rem;display:flex;align-items:center;gap:0.5rem;flex-wrap:wrap}.people-profile-card--wide .profile-name{font-size:1.15rem}.profile-meta{display:flex;flex-wrap:wrap;gap:0.75rem;margin-bottom:0.5rem}.profile-meta span{font-size:0.82rem;color:var(--text-muted);display:inline-flex;align-items:center;gap:0.35rem}.profile-meta span i{font-size:0.72rem;color:var(--secondary);opacity:0.7}.profile-tags{display:flex;flex-wrap:wrap;gap:0.3rem;margin-bottom:0.5rem}.profile-bio{font-size:0.88rem;line-height:1.6;color:var(--text-muted);margin-top:0.5rem}.profile-thesis{font-size:0.84rem;line-height:1.55;color:var(--text-muted);margin-top:0.4rem;display:flex;gap:0.5rem}.profile-thesis>i{flex-shrink:0;margin-top:0.2rem;font-size:0.78rem;color:var(--secondary);opacity:0.6}.profile-thesis a{color:var(--secondary)}.profile-thesis a:hover{text-decoration:underline}.profile-position{font-size:0.84rem;color:var(--text-muted);margin-top:0.3rem}.profile-position i{font-size:0.75rem;color:var(--secondary);opacity:0.6;margin-right:0.35rem}.profile-note{font-size:0.8rem;color:var(--text-muted);font-style:italic;margin-top:0.35rem}.profile-links{display:flex;gap:0.75rem;margin-top:0.6rem}.profile-links a{font-size:1rem;color:var(--text-muted);transition:color 0.2s, transform 0.2s;display:inline-flex;align-items:center;justify-content:center;width:28px;height:28px;border-radius:6px;background:rgba(37,99,235,0.06);border:1px solid transparent}.profile-links a:hover{color:var(--secondary);background:rgba(37,99,235,0.12);border-color:rgba(37,99,235,0.2);transform:translateY(-1px)}html[data-theme="dark"] .profile-links a{background:rgba(37,99,235,0.1)}html[data-theme="dark"] .profile-links a:hover{background:rgba(37,99,235,0.18);border-color:rgba(37,99,235,0.3)}.lightbox{position:fixed;inset:0;z-index:9999;display:flex;align-items:center;justify-content:center;background:rgba(0,0,0,0.85);opacity:0;visibility:hidden;transition:opacity 0.3s ease, visibility 0.3s ease;backdrop-filter:blur(8px)}.lightbox.active{opacity:1;visibility:visible}.lightbox-close{position:absolute;top:1.5rem;right:1.5rem;background:none;border:none;color:#fff;font-size:2rem;cursor:pointer;width:44px;height:44px;display:flex;align-items:center;justify-content:center;border-radius:50%;transition:background 0.2s}.lightbox-close:hover{background:rgba(255,255,255,0.15)}.lightbox-img{max-width:85vw;max-height:85vh;border-radius:12px;box-shadow:0 20px 60px rgba(0,0,0,0.5);transform:scale(0.9);transition:transform 0.3s ease}.lightbox.active .lightbox-img{transform:scale(1)}@media (max-width: 480px){.people-profile-card{flex-direction:column;align-items:center;text-align:center;gap:0.75rem;padding:1.25rem}.profile-meta{justify-content:center}.profile-tags{justify-content:center}.profile-name{justify-content:center}.profile-links{justify-content:center}.profile-thesis{flex-direction:column;align-items:center;text-align:center}.profile-photo--lg{width:90px;height:90px}}.alumni-timeline{max-width:1200px;margin:0 auto 3rem;position:relative;padding-left:2rem}.alumni-timeline::before{content:"";position:absolute;left:5px;top:0.5rem;bottom:0.5rem;width:2px;background:linear-gradient(to bottom, var(--secondary), var(--accent));opacity:0.3;border-radius:2px}.timeline-group{position:relative;margin-bottom:2.5rem}.timeline-group:last-child{margin-bottom:0}.timeline-marker{display:flex;align-items:center;gap:0.75rem;margin-bottom:1rem;position:relative}.timeline-dot{position:absolute;left:-2rem;width:12px;height:12px;border-radius:50%;background:var(--secondary);border:2px solid var(--bg);box-shadow:0 0 0 3px rgba(37,99,235,0.2);transform:translateX(-0.5px)}html[data-theme="dark"] .timeline-dot{box-shadow:0 0 0 3px rgba(37,99,235,0.3)}.timeline-year-label{font-size:1.1rem;font-weight:700;color:var(--secondary);letter-spacing:-0.01em}.timeline-cards{display:flex;flex-direction:column;gap:1rem}@media (max-width: 480px){.alumni-timeline{padding-left:1.5rem}.alumni-timeline::before{left:3px}.timeline-dot{left:-1.5rem;width:10px;height:10px}}.gallery-placeholder{text-align:center;padding:5rem 2rem;background:var(--bg-alt);border-radius:16px;border:2px dashed var(--border)}.gallery-placeholder>i{font-size:3rem;color:var(--text-muted);opacity:0.5;margin-bottom:1.25rem;display:block}.gallery-placeholder h3{font-size:1.2rem;font-weight:600;margin-bottom:0.5rem}.gallery-placeholder p{font-size:0.92rem;color:var(--text-muted)}.gallery-grid{display:grid;grid-template-columns:repeat(auto-fill, minmax(280px, 1fr));gap:1.25rem}.gallery-item{border-radius:12px;overflow:hidden;background:var(--card-bg);border:1px solid var(--border);transition:all 0.25s ease}.gallery-item:hover{transform:translateY(-3px);box-shadow:0 8px 24px rgba(0,0,0,0.08)}.gallery-item img{width:100%;height:220px;object-fit:cover;display:block}.gallery-item figcaption{padding:0.75rem 1rem;font-size:0.85rem;color:var(--text-muted)}