/* HAI Lab — site styles (ARK Lab–inspired) */ :root { /* Theme entry point: - Default blue is active now. - To test the red theme, add class="theme-red" to the tag. - To make a custom theme, adjust the RGB triples below. */ /* default theme */ /* --theme-primary-rgb: 26, 54, 93; --theme-primary-light-rgb: 44, 82, 130; --theme-accent-rgb: 197, 48, 48; --color-primary: #1a365d; --color-primary-light: #2c5282; --color-accent: #c53030; */ /* red theme */ --theme-primary-rgb: 130, 0, 16; --theme-primary-light-rgb: 166, 32, 48; --theme-accent-rgb: 130, 0, 16; --color-primary: rgb(var(--theme-primary-rgb)); --color-primary-light: rgb(var(--theme-primary-light-rgb)); --color-accent: rgb(var(--theme-accent-rgb)); --color-text: #1a202c; --color-text-muted: #4a5568; --color-bg: #f7fafc; --color-card: #ffffff; --color-border: #e2e8f0; --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.08); --shadow-md: 0 4px 14px rgba(0, 0, 0, 0.08); --shadow-lg: 0 10px 40px rgba(0, 0, 0, 0.1); --radius: 12px; --max-width: 1180px; --font-sans: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif; } /* red theme */ body.theme-red { --theme-primary-rgb: 130, 0, 16; --theme-primary-light-rgb: 166, 32, 48; --theme-accent-rgb: 130, 0, 16; --color-primary: rgb(var(--theme-primary-rgb)); --color-primary-light: rgb(var(--theme-primary-light-rgb)); --color-accent: rgb(var(--theme-accent-rgb)); } *, *::before, *::after { box-sizing: border-box; } html { scroll-behavior: smooth; } body { margin: 0; font-family: var(--font-sans); font-size: 0.94rem; line-height: 1.65; color: var(--color-text); background: var(--color-bg); } a { color: var(--color-primary-light); text-decoration: none; transition: color 0.15s ease; } a:hover { color: var(--color-accent); text-decoration: underline; } img { max-width: 100%; height: auto; } /* —— Header / Nav —— */ .site-header { position: sticky; top: 0; z-index: 1000; background: var(--color-card); box-shadow: var(--shadow-md); } .site-header__inner { max-width: var(--max-width); margin: 0 auto; padding: 0 1.5rem; display: flex; align-items: center; justify-content: space-between; min-height: 64px; } .site-logo { font-weight: 700; font-size: 1.22rem; color: var(--color-primary); text-decoration: none; } .site-logo:hover { text-decoration: none; color: var(--color-accent); } .site-nav { display: flex; gap: 0.25rem; list-style: none; margin: 0; padding: 0; } .site-nav a { display: block; padding: 0.5rem 1rem; font-weight: 500; font-size: 0.9rem; color: var(--color-text); border-radius: 8px; text-decoration: none; } .site-nav a:hover { background: var(--color-bg); color: var(--color-primary); text-decoration: none; } .site-nav a.active { background: #edf2f7; color: var(--color-primary); font-weight: 700; } .nav-toggle { display: none; background: none; border: none; font-size: 1.5rem; cursor: pointer; color: var(--color-primary); padding: 0.25rem; } /* —— Layout —— */ .container { max-width: var(--max-width); margin: 0 auto; padding: 0 1.5rem; } .section { padding: 4rem 0; } .section--alt { background: var(--color-card); } .section-label { display: block; font-size: 0.8rem; font-weight: 600; letter-spacing: 0.12em; text-transform: uppercase; color: var(--color-accent); margin-bottom: 0.5rem; } .section-title { font-size: clamp(1.75rem, 4vw, 2.25rem); font-weight: 700; color: var(--color-primary); margin: 0 0 1.5rem; line-height: 1.25; } .section-intro { font-size: 1.1rem; color: var(--color-text-muted); max-width: 820px; margin-bottom: 2rem; } /* —— Hero —— */ .hero { padding: 5rem 0 4rem; background: linear-gradient(165deg, #edf2f7 0%, #f7fafc 50%, #fff 100%); } .hero__grid { display: grid; grid-template-columns: 1fr 1fr; gap: 3rem; align-items: center; } .hero h1 { font-size: clamp(2rem, 5vw, 2.75rem); font-weight: 800; color: var(--color-primary); margin: 0 0 0.75rem; line-height: 1.15; } .hero__subtitle { font-size: 1.15rem; color: var(--color-text-muted); margin-bottom: 1.5rem; } .hero__affiliation { font-size: 0.95rem; color: var(--color-text-muted); margin-bottom: 1.5rem; } .hero__actions { display: flex; flex-wrap: wrap; gap: 0.75rem; } .btn { display: inline-block; padding: 0.65rem 1.35rem; font-weight: 600; font-size: 0.95rem; border-radius: 8px; text-decoration: none; transition: transform 0.15s ease, box-shadow 0.15s ease; } .btn:hover { text-decoration: none; transform: translateY(-1px); } .btn--primary { background: var(--color-primary); color: #fff; box-shadow: var(--shadow-sm); } .btn--primary:hover { background: var(--color-primary-light); color: #fff; } .btn--outline { background: var(--color-card); color: var(--color-primary); border: 2px solid var(--color-border); } .btn--outline:hover { border-color: var(--color-primary); color: var(--color-primary); } .hero__visual { border-radius: var(--radius); overflow: hidden; box-shadow: var(--shadow-lg); background: var(--color-border); aspect-ratio: 16 / 10; display: flex; align-items: center; justify-content: center; } .hero__visual img { width: 100%; height: 100%; object-fit: cover; } .hero__placeholder { color: var(--color-text-muted); font-size: 0.9rem; text-align: center; padding: 2rem; } /* —— Home landing hero —— */ .hero--cover { position: relative; min-height: calc(100vh - 64px); padding: 0; display: flex; align-items: center; overflow: hidden; background: #0b1220; } .hero__background { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; object-position: center; transform: scale(1.01); } .hero__overlay { position: absolute; inset: 0; background: linear-gradient(90deg, rgba(5, 10, 20, 0.88) 0%, rgba(5, 10, 20, 0.66) 42%, rgba(5, 10, 20, 0.22) 100%), linear-gradient(0deg, rgba(5, 10, 20, 0.35), rgba(5, 10, 20, 0.04)); } .hero__content { position: relative; z-index: 1; max-width: var(--max-width); padding-top: 5rem; padding-bottom: 5rem; margin-left: 15vw; margin-right: auto; margin-top: auto; margin-bottom: 12vw; } .hero--cover h1 { max-width: 800px; margin: 0 0 1.2rem; color: #fff; font-size: clamp(2.05rem, 4.8vw, 3.75rem); line-height: 1.05; letter-spacing: -0.055em; text-wrap: balance; } .hero--cover .hero__subtitle { max-width: 620px; color: rgba(255, 255, 255, 0.88); font-size: clamp(0.92rem, 1.25vw, 1.05rem); line-height: 1.65; } .hero--cover .hero__affiliation { color: rgba(255, 255, 255, 0.74); } .hero__kicker { display: inline-flex; margin-bottom: 1.15rem; padding: 0.45rem 0.85rem; border: 1px solid rgba(255, 255, 255, 0.28); border-radius: 999px; color: rgba(255, 255, 255, 0.92); background: rgba(255, 255, 255, 0.1); backdrop-filter: blur(8px); font-size: 0.86rem; font-weight: 700; letter-spacing: 0.06em; text-transform: uppercase; } .btn--glass { color: #fff; border: 1px solid rgba(255, 255, 255, 0.42); background: rgba(255, 255, 255, 0.14); backdrop-filter: blur(10px); } .btn--glass:hover { color: #fff; background: rgba(255, 255, 255, 0.22); border-color: rgba(255, 255, 255, 0.72); } .research-overview { background: radial-gradient(circle at 12% 10%, rgba(var(--theme-primary-light-rgb), 0.11), transparent 28rem), linear-gradient(180deg, #f8fafc 0%, #ffffff 100%); } .research-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 1.05rem; } .research-card { position: relative; min-height: 215px; padding: 1.25rem; border-radius: 15px; background: rgba(255, 255, 255, 0.92); border: 1px solid rgba(226, 232, 240, 0.88); box-shadow: 0 18px 45px rgba(var(--theme-primary-rgb), 0.09); transition: transform 0.2s ease, box-shadow 0.2s ease, border-color 0.2s ease; } .research-card:hover { transform: translateY(-4px); border-color: rgba(var(--theme-primary-light-rgb), 0.28); box-shadow: 0 26px 56px rgba(var(--theme-primary-rgb), 0.14); } .research-card__index { display: inline-flex; width: 2.25rem; height: 2.25rem; align-items: center; justify-content: center; margin-bottom: 1rem; border-radius: 50%; color: #fff; background: var(--color-primary); font-size: 0.78rem; font-weight: 800; } .research-card h3 { margin: 0 0 0.65rem; color: var(--color-primary); font-size: 1.08rem; line-height: 1.25; letter-spacing: -0.02em; } .research-card p { margin: 0; color: var(--color-text-muted); font-size: 0.9rem; } /* Scroll reveal: JS adds .reveal-enabled, so content stays visible if JS fails. */ .reveal-enabled .reveal { opacity: 0; transform: translate3d(0, 34px, 0); transition: opacity 760ms cubic-bezier(0.22, 1, 0.36, 1), transform 760ms cubic-bezier(0.22, 1, 0.36, 1); transition-delay: var(--reveal-delay, 0ms); will-change: opacity, transform; } .reveal-enabled .reveal.is-visible { opacity: 1; transform: translate3d(0, 0, 0); } .reveal-enabled .research-card.reveal.is-visible:hover { transform: translateY(-4px); } .reveal-enabled .project-card.reveal.is-visible:hover { transform: translateY(-3px); } @media (prefers-reduced-motion: reduce) { .reveal-enabled .reveal, .reveal-enabled .reveal.is-visible, .reveal-enabled .research-card.reveal.is-visible:hover, .reveal-enabled .project-card.reveal.is-visible:hover { opacity: 1; transform: none; transition: none; } } /* —— Standalone content pages —— */ .page-hero { padding: 5rem 0 3.5rem; background: linear-gradient(135deg, rgba(var(--theme-primary-rgb), 0.94), rgba(var(--theme-primary-light-rgb), 0.82)), url("../../figs/home/home1.png") center / cover; color: #fff; } .page-hero h1 { max-width: 760px; margin: 0 0 1rem; color: #fff; font-size: clamp(1.8rem, 4.3vw, 2.85rem); line-height: 1.02; letter-spacing: -0.04em; } .page-hero p { max-width: 720px; margin: 0; color: rgba(255, 255, 255, 0.86); font-size: 1rem; } .page-hero .section-label { color: #fed7d7; } .team-section h2 { color: var(--color-primary); margin: 0 0 1.6rem; } .member-grid { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 1.3rem; } .member-card { display: block; color: var(--color-text); text-decoration: none; transition: transform 0.2s ease, opacity 0.2s ease; } .member-card:hover { transform: translateY(-2px); color: var(--color-text); text-decoration: none; opacity: 0.92; } .member-card__photo { display: block; width: 100%; margin: 0 0 0.95rem; aspect-ratio: 1 / 1; border-radius: 0; object-fit: cover; object-position: center 30%; box-shadow: 0 10px 28px rgba(var(--theme-primary-rgb), 0.08); } .member-card__body { width: 100%; text-align: left; } .member-card h3 { margin: 0; color: #0f172a; font-size: 1.08rem; line-height: 1.25; } .member-card__role { margin: 0 0 0.35rem; color: #475569; font-size: 0.72rem; font-weight: 700; letter-spacing: 0.12em; text-transform: uppercase; } .member-card__bio { margin: 0; color: var(--color-text-muted); font-size: 0.92rem; line-height: 1.65; } /* —— Member profile pages —— */ .member-profile-page { background: #fff; } .member-profile-hero { padding: 3.6rem 0; background: linear-gradient(135deg, rgba(var(--theme-primary-rgb), 0.96), rgba(15, 23, 42, 0.92)), url("../../figs/home/home1.png") center / cover; color: #fff; } .member-profile-panel { display: grid; grid-template-columns: minmax(220px, 280px) minmax(0, 1fr); gap: 1.9rem; align-items: center; max-width: 980px; margin: 0 auto; } .member-profile-photo { width: 100%; aspect-ratio: 1 / 1; object-fit: cover; object-position: center 30%; box-shadow: 0 22px 55px rgba(0, 0, 0, 0.28); } .member-profile-role { display: inline-block; margin: 0 0 0.5rem; color: rgba(255, 255, 255, 0.72); font-size: 0.68rem; font-weight: 800; letter-spacing: 0.14em; text-transform: uppercase; } .member-profile-panel h1 { margin: 0 0 0.8rem; color: #fff; font-size: clamp(1.8rem, 3.3vw, 2.45rem); line-height: 1.08; letter-spacing: -0.04em; } .member-profile-bio { max-width: 700px; margin: 0 0 0.8rem; color: rgba(255, 255, 255, 0.88); font-size: 0.9rem; line-height: 1.68; } .member-profile-meta { display: grid; gap: 0.28rem; margin-top: 1rem; color: rgba(255, 255, 255, 0.84); font-size: 0.86rem; } .member-profile-meta a { color: #fff; font-weight: 700; text-decoration: underline; text-underline-offset: 3px; } .member-profile-meta a:hover { color: #fed7d7; } /* —— Cards —— */ .card-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(240px, 1fr)); gap: 1.5rem; } .card-grid--topics { grid-template-columns: repeat(auto-fill, minmax(260px, 1fr)); } .topic-card { background: var(--color-card); border-radius: var(--radius); padding: 1.5rem; box-shadow: var(--shadow-md); border: 1px solid var(--color-border); transition: box-shadow 0.2s ease, transform 0.2s ease; } .topic-card:hover { box-shadow: var(--shadow-lg); transform: translateY(-2px); } .topic-card h3 { font-size: 1.1rem; color: var(--color-primary); margin: 0 0 0.75rem; } .topic-card p { margin: 0; font-size: 0.95rem; color: var(--color-text-muted); } /* —— Project cards —— */ .project-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(300px, 1fr)); gap: 1.25rem; } .project-card { background: var(--color-card); border-radius: var(--radius); overflow: hidden; box-shadow: var(--shadow-md); border: 1px solid var(--color-border); transition: box-shadow 0.2s ease, transform 0.2s ease; text-decoration: none; color: inherit; display: flex; flex-direction: column; } .project-card:hover { box-shadow: var(--shadow-lg); transform: translateY(-3px); text-decoration: none; color: inherit; } .project-card__image { aspect-ratio: 16 / 9; background: #edf2f7; overflow: hidden; } .project-card__image img { width: 100%; height: 100%; object-fit: cover; } .project-card__body { padding: 1rem 1.15rem 1.1rem; flex: 1; display: flex; flex-direction: column; } .project-card__title { font-size: 0.98rem; font-weight: 700; color: var(--color-primary); margin: 0 0 0.5rem; line-height: 1.35; } .project-card__venue { font-size: 0.85rem; color: var(--color-accent); font-weight: 600; margin: 0 0 0.5rem; } .project-card__authors { font-size: 0.94rem; color: var(--color-text); font-weight: 600; line-height: 1.45; margin: 0 0 0.45rem; } .project-card__publication { font-size: 0.9rem; color: var(--color-text-muted); line-height: 1.45; margin: 0; } /* Projects page: use a readable one-project-per-row layout. */ .projects-page .project-grid { max-width: 1060px; margin: 0 auto; grid-template-columns: 1fr; gap: 1.1rem; } .projects-page .project-card { display: grid; grid-template-columns: minmax(220px, 32%) minmax(0, 1fr); height: 220px; } .projects-page .project-card__image { aspect-ratio: auto; height: 100%; } .projects-page .project-card__body { justify-content: center; padding: 1.05rem 1.35rem; } .projects-page .project-card__title { font-size: clamp(0.92rem, 1.35vw, 1.05rem); color: #0f172a; } .projects-page .project-card__authors { max-width: 820px; } .projects-page .project-card__publication { max-width: 820px; } /* —— Teaching —— */ .teaching-layout { display: grid; gap: 1.35rem; max-width: 1040px; margin: 0 auto; } .teaching-block { background: var(--color-card); border: 1px solid var(--color-border); border-radius: var(--radius); box-shadow: var(--shadow-md); padding: 1.55rem; } .teaching-block__header { margin-bottom: 1rem; } .teaching-block__header h2 { margin: 0; color: var(--color-primary); font-size: clamp(1.2rem, 2.2vw, 1.65rem); line-height: 1.2; } .course-card { position: relative; padding: 1.2rem; border-radius: 14px; background: linear-gradient(135deg, rgba(var(--theme-primary-rgb), 0.055), rgba(var(--theme-primary-light-rgb), 0.035)), #fff; border: 1px solid rgba(var(--theme-primary-rgb), 0.14); } .course-card__meta { display: flex; flex-wrap: wrap; gap: 0.55rem; margin-bottom: 0.8rem; } .course-card__tag, .course-card__code { display: inline-flex; align-items: center; min-height: 1.8rem; padding: 0.25rem 0.65rem; border-radius: 999px; font-size: 0.74rem; font-weight: 800; letter-spacing: 0.08em; text-transform: uppercase; } .course-card__tag { color: #fff; background: var(--color-primary); } .course-card__code { color: var(--color-primary); background: rgba(var(--theme-primary-rgb), 0.09); } .course-card h3 { margin: 0 0 0.75rem; color: #0f172a; font-size: clamp(1.03rem, 1.85vw, 1.32rem); line-height: 1.25; } .course-card p { max-width: 780px; margin: 0; color: var(--color-text-muted); } .course-card__footer { margin-top: 1.15rem; color: var(--color-text-muted); font-size: 0.9rem; } .empty-teaching-card { padding: 1.1rem 1.2rem; border: 1px dashed rgba(var(--theme-primary-rgb), 0.3); border-radius: 16px; color: var(--color-text-muted); background: #f8fafc; } /* —— People —— */ .people-grid { display: grid; gap: 2rem; } .person-card { display: grid; grid-template-columns: 170px 1fr; gap: 1.45rem; align-items: center; background: var(--color-card); border-radius: var(--radius); padding: 1.55rem; box-shadow: var(--shadow-md); border: 1px solid var(--color-border); } .person-card__photo { width: 170px; height: 170px; display: block; justify-self: center; align-self: center; border-radius: 50%; object-fit: cover; object-position: center center; box-shadow: var(--shadow-sm); } .person-card__photo--placeholder { width: 200px; height: 200px; border-radius: 50%; background: linear-gradient(135deg, #e2e8f0, #cbd5e0); display: flex; align-items: center; justify-content: center; font-size: 0.8rem; color: var(--color-text-muted); text-align: center; padding: 1rem; } .person-card h2, .person-card h3 { margin: 0 0 0.25rem; font-size: 1.28rem; color: var(--color-primary); line-height: 1.2; } .person-card__role { font-weight: 600; color: var(--color-accent); margin: 0 0 0.75rem; font-size: 0.88rem; } .person-card__bio { margin: 0 0 1rem; color: var(--color-text-muted); font-size: 0.9rem; } .person-card__links { display: flex; flex-wrap: wrap; gap: 0.5rem 1rem; font-size: 0.9rem; } .member-placeholder { background: var(--color-card); border: 2px dashed var(--color-border); border-radius: var(--radius); padding: 2rem; text-align: center; color: var(--color-text-muted); font-size: 0.95rem; } /* —— Prospective students —— */ .prose-block { background: var(--color-card); border-radius: var(--radius); padding: 1.55rem 1.75rem; box-shadow: var(--shadow-md); border: 1px solid var(--color-border); margin-bottom: 1.5rem; } .prose-block h3 { color: var(--color-primary); margin: 1.5rem 0 0.75rem; font-size: 1.15rem; } .prose-block h3:first-child { margin-top: 0; } .prose-block p, .prose-block ul { color: var(--color-text-muted); margin: 0 0 1rem; } .prose-block ul { padding-left: 1.25rem; } .prose-block li { margin-bottom: 0.35rem; } .highlight-box { background: #fff5f5; border-left: 4px solid var(--color-accent); padding: 0.85rem 1rem; margin: 1.15rem 0; border-radius: 0 8px 8px 0; } .benefits-grid { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 1rem; margin: 1rem 0 0; } .benefits-block { margin-top: 1.5rem; } .benefit-card { background: #f8fafc; padding: 1rem; border-radius: var(--radius); box-shadow: none; border: 1px solid var(--color-border); } .benefit-card h3, .benefit-card h4 { margin: 0 0 0.5rem; font-size: 1rem; color: var(--color-primary); } .benefit-card p { margin: 0; font-size: 0.9rem; color: var(--color-text-muted); } /* —— Footer —— */ .site-footer { background: var(--color-primary); color: #e2e8f0; padding: 3rem 0 2rem; margin-top: 2rem; } .site-footer a { color: #bee3f8; } .site-footer a:hover { color: #fff; } .footer-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(200px, 1fr)); gap: 2rem; margin-bottom: 2rem; } .site-footer h4 { color: #fff; margin: 0 0 0.75rem; font-size: 0.95rem; text-transform: uppercase; letter-spacing: 0.06em; } .site-footer p, .site-footer ul { margin: 0; font-size: 0.9rem; line-height: 1.6; } .site-footer ul { list-style: none; padding: 0; } .site-footer li { margin-bottom: 0.35rem; } .footer-bottom { border-top: 1px solid rgba(255, 255, 255, 0.15); padding-top: 1.5rem; font-size: 0.85rem; color: #a0aec0; text-align: center; } /* —— Responsive —— */ @media (max-width: 900px) { .hero__grid { grid-template-columns: 1fr; } .projects-page .project-card { grid-template-columns: minmax(210px, 40%) minmax(0, 1fr); height: 210px; } .research-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); } .person-card { grid-template-columns: 1fr; text-align: center; } .person-card__photo, .person-card__photo--placeholder { margin: 0 auto; } .person-card__links { justify-content: center; } .member-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); } .member-profile-panel { grid-template-columns: 220px minmax(0, 1fr); } } @media (max-width: 768px) { .nav-toggle { display: block; } .site-nav { display: none; position: absolute; top: 64px; left: 0; right: 0; flex-direction: column; background: var(--color-card); box-shadow: var(--shadow-md); padding: 0.5rem 1rem 1rem; } .site-nav.is-open { display: flex; } .site-header__inner { position: relative; flex-wrap: wrap; } .section { padding: 3rem 0; } .hero--cover { min-height: 760px; } .hero__overlay { background: linear-gradient(90deg, rgba(5, 10, 20, 0.9) 0%, rgba(5, 10, 20, 0.68) 100%); } .research-grid { grid-template-columns: 1fr; } .research-card { min-height: auto; } .member-grid { grid-template-columns: 1fr; max-width: 420px; margin: 0 auto; } .member-profile-hero { padding: 2.6rem 0; } .member-profile-panel { grid-template-columns: 1fr; gap: 1.25rem; } .member-profile-photo { max-width: 220px; } .benefits-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); } .projects-page .project-grid { max-width: 680px; } .projects-page .project-card { grid-template-columns: 1fr; height: auto; min-height: auto; } .projects-page .project-card__image { aspect-ratio: 16 / 9; height: auto; } .projects-page .project-card__body { padding: 1rem 1.15rem 1.15rem; } } @media (max-width: 520px) { .site-logo { font-size: 1rem; } .hero--cover { min-height: 720px; } .hero__content { padding-top: 4rem; padding-bottom: 4rem; } .hero--cover h1 { font-size: clamp(1.9rem, 11.5vw, 3rem); } .hero__kicker { font-size: 0.72rem; letter-spacing: 0.04em; } .hero__actions { flex-direction: column; align-items: flex-start; } .btn { width: 100%; max-width: 260px; text-align: center; } .benefits-grid { grid-template-columns: 1fr; } }