/* ========================================================================== KISP Lab — v2 (modern) stylesheet Design tokens first, then base, layout, components. Light + dark via prefers-color-scheme. No build step required. ========================================================================== */ :root { --bg: #ffffff; --surface: #f6f7fb; --surface-2: #eef0f7; --text: #16162a; --muted: #5b5b73; --accent: #ea580c; /* orange-600 */ --accent-ink: #ffffff; --accent-soft: #fff3ea; --border: #e6e7f0; --ring: rgba(234, 88, 12, .35); --radius: 16px; --radius-sm: 10px; --max: 1080px; --gap: clamp(1rem, 2vw, 1.75rem); --shadow: 0 1px 2px rgba(16, 16, 40, .04), 0 10px 30px rgba(16, 16, 40, .07); --shadow-lg: 0 2px 6px rgba(16, 16, 40, .06), 0 20px 50px rgba(16, 16, 40, .12); --font: "Helvetica Neue", Helvetica, Arial, system-ui, -apple-system, "Segoe UI", Roboto, sans-serif; } /* Dark theme is applied via [data-theme="dark"] on (default), so it can be toggled manually and persisted, independent of the OS setting. */ :root[data-theme="dark"] { --bg: #0c0c14; --surface: #14141f; --surface-2: #1b1b2a; --text: #e9e9f2; --muted: #a2a2b8; --accent: #fb923c; /* orange-400 */ --accent-ink: #0c0c14; --accent-soft: #2a1a0e; --border: #262639; --ring: rgba(251, 146, 60, .4); --shadow: 0 1px 2px rgba(0, 0, 0, .4), 0 10px 30px rgba(0, 0, 0, .45); --shadow-lg: 0 2px 6px rgba(0, 0, 0, .5), 0 24px 60px rgba(0, 0, 0, .6); } /* ----- reset / base ----- */ *, *::before, *::after { box-sizing: border-box; } /* Larger base size (~19px) for readability, close to the advisor's 15pt body; all rem-based sizes scale up from here. */ html { font-size: 118.75%; scroll-behavior: smooth; scroll-padding-top: 5rem; -webkit-text-size-adjust: 100%; } body { margin: 0; font-family: var(--font); color: var(--text); background: var(--bg); line-height: 1.65; -webkit-font-smoothing: antialiased; text-rendering: optimizeLegibility; } img { max-width: 100%; display: block; } a { color: var(--accent); text-decoration: none; } a:hover { text-decoration: underline; } h1, h2, h3 { line-height: 1.15; letter-spacing: -0.02em; margin: 0; } .container { width: 100%; max-width: var(--max); margin-inline: auto; padding-inline: clamp(1.1rem, 4vw, 2rem); } /* ----- header ----- */ .site-header { position: sticky; top: 0; z-index: 100; background: color-mix(in srgb, var(--bg) 78%, transparent); backdrop-filter: saturate(180%) blur(12px); -webkit-backdrop-filter: saturate(180%) blur(12px); border-bottom: 1px solid var(--border); } .header-inner { display: flex; align-items: center; height: 4rem; gap: 1rem; } .brand { display: inline-flex; align-items: baseline; gap: .4rem; font-weight: 800; letter-spacing: -0.03em; } .brand:hover { text-decoration: none; } .brand-mark { font-size: 1.4rem; color: var(--text); } .brand-sub { font-size: .7rem; font-weight: 700; color: var(--accent); border: 1px solid var(--border); border-radius: 999px; padding: .1rem .45rem; } .nav { display: flex; align-items: center; gap: clamp(.5rem, 2vw, 1.4rem); margin-left: auto; } .nav a { color: var(--muted); font-weight: 500; font-size: .95rem; } .nav a:hover { color: var(--text); text-decoration: none; } /* theme toggle */ .theme-toggle { display: inline-flex; align-items: center; justify-content: center; width: 38px; height: 38px; border-radius: 999px; flex: none; background: transparent; color: var(--muted); cursor: pointer; border: 1px solid var(--border); transition: color .15s ease, border-color .15s ease, background .15s ease; } .theme-toggle:hover { color: var(--text); border-color: var(--accent); background: var(--surface); } .theme-toggle svg { width: 18px; height: 18px; } .theme-toggle .icon-moon { fill: currentColor; } .theme-toggle .icon-sun { fill: none; stroke: currentColor; stroke-width: 2; stroke-linecap: round; stroke-linejoin: round; } .theme-toggle .icon-sun { display: none; } :root[data-theme="dark"] .theme-toggle .icon-sun { display: block; } :root[data-theme="dark"] .theme-toggle .icon-moon { display: none; } /* Narrow screens: keep brand + toggle on the top row, drop the nav to its own row as a horizontally scrollable strip (scrollbar hidden). */ @media (max-width: 640px) { .header-inner { flex-wrap: wrap; height: auto; row-gap: .5rem; padding-block: .55rem; } .brand { order: 1; } .theme-toggle { order: 2; margin-left: auto; } .nav { order: 3; flex-basis: 100%; margin-left: 0; flex-wrap: nowrap; overflow-x: auto; -webkit-overflow-scrolling: touch; scrollbar-width: none; /* Firefox */ } .nav::-webkit-scrollbar { display: none; } /* Chrome / Safari */ .nav a { white-space: nowrap; } } /* ----- hero ----- */ .hero { position: relative; overflow: hidden; padding: clamp(3.5rem, 9vw, 7rem) 0 clamp(2.5rem, 6vw, 4.5rem); background: radial-gradient(1200px 500px at 15% -10%, var(--accent-soft), transparent 60%), radial-gradient(900px 500px at 100% 0%, color-mix(in srgb, var(--accent) 12%, transparent), transparent 55%); } .hero-inner { max-width: 46rem; } .eyebrow { text-transform: uppercase; letter-spacing: .14em; font-size: .78rem; font-weight: 700; color: var(--accent); margin: 0 0 .8rem; } .hero-title { font-size: clamp(2.6rem, 8vw, 4.8rem); font-weight: 800; margin: 0 0 .5rem; } .hero-slogan { font-size: clamp(1.15rem, 3vw, 1.6rem); font-weight: 600; color: var(--text); margin: 0 0 .4rem; } .hero-lead { font-size: 1.05rem; color: var(--muted); margin: 0 0 1.8rem; } .hero-cta { display: flex; gap: .75rem; flex-wrap: wrap; } /* ----- buttons ----- */ .btn { display: inline-flex; align-items: center; gap: .4rem; padding: .65rem 1.15rem; border-radius: 999px; font-weight: 600; font-size: .95rem; border: 1px solid transparent; transition: transform .15s ease, box-shadow .15s ease, background .15s ease; } .btn:hover { text-decoration: none; transform: translateY(-1px); } .btn-primary { background: var(--accent); color: var(--accent-ink); box-shadow: var(--shadow); } .btn-ghost { background: transparent; color: var(--text); border-color: var(--border); } .btn-ghost:hover { background: var(--surface); } /* ----- sections ----- */ .section { padding: clamp(2.5rem, 6vw, 4.5rem) 0; } .section-alt { background: var(--surface); } .section-title { font-size: clamp(1.5rem, 4vw, 2.1rem); font-weight: 700; margin-bottom: 1.8rem; } .section-title::after { content: ""; display: block; width: 2.5rem; height: 3px; margin-top: .6rem; border-radius: 3px; background: var(--accent); } .group-title { font-size: .8rem; text-transform: uppercase; letter-spacing: .12em; color: var(--muted); font-weight: 700; margin: 2rem 0 1rem; } /* ----- about ----- */ .about-grid { display: grid; grid-template-columns: 1.1fr .9fr; gap: clamp(1.5rem, 4vw, 3rem); align-items: center; } .about-text { color: var(--muted); font-size: 1.05rem; } .about-text strong { color: var(--text); } .about-figure { margin: 0; } .about-figure img { border-radius: var(--radius); box-shadow: var(--shadow); width: 100%; } @media (max-width: 720px) { .about-grid { grid-template-columns: 1fr; } } /* ----- card grid (projects) ----- */ .card-grid { display: grid; gap: var(--gap); } .projects-grid { grid-template-columns: repeat(auto-fit, minmax(220px, 1fr)); } .card { display: block; padding: 1.5rem; background: var(--bg); border: 1px solid var(--border); border-radius: var(--radius); box-shadow: var(--shadow); transition: transform .18s ease, box-shadow .18s ease, border-color .18s ease; text-align: center; } .card:hover { text-decoration: none; transform: translateY(-4px); box-shadow: var(--shadow-lg); border-color: color-mix(in srgb, var(--accent) 40%, var(--border)); } .project-img { width: 84px; height: 84px; object-fit: contain; margin: 0 auto 1rem; } .card-title { font-size: 1.15rem; font-weight: 700; color: var(--text); margin-bottom: .3rem; } .card-sub { font-size: .9rem; color: var(--accent); font-weight: 600; margin: 0 0 .6rem; } .card-desc { font-size: .92rem; color: var(--muted); margin: 0; } /* ----- people ----- */ .people-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(170px, 1fr)); gap: clamp(1.25rem, 3vw, 2.25rem); } .person { text-align: center; } .person-photo-link { display: block; } .person-photo { width: 150px; height: 150px; object-fit: cover; border-radius: 50%; margin: 0 auto .85rem; border: 3px solid var(--bg); box-shadow: var(--shadow); transition: transform .18s ease, box-shadow .18s ease; } .person-photo-link:hover .person-photo { transform: translateY(-3px) scale(1.03); box-shadow: var(--shadow-lg); } .person-name { font-weight: 600; font-size: 1.05rem; color: var(--text); } .person-links { display: flex; justify-content: center; gap: .5rem; margin-top: .5rem; } .person-links a { color: var(--muted); display: inline-flex; } .person-links a:hover { color: var(--accent); } .person-links svg { width: 18px; height: 18px; fill: currentColor; } /* ----- news ----- */ .news-list { list-style: none; margin: 0; padding: 0; display: grid; gap: .25rem; } .news-item { display: grid; grid-template-columns: 5.5rem 1fr; gap: 1rem; padding: .85rem 0; border-bottom: 1px solid var(--border); align-items: baseline; } .news-item:last-child { border-bottom: 0; } .news-date { font-variant-numeric: tabular-nums; font-weight: 700; font-size: .85rem; color: var(--accent); white-space: nowrap; } .news-content { color: var(--text); } @media (max-width: 560px) { .news-item { grid-template-columns: 1fr; gap: .15rem; } } /* ----- publications ----- */ .pub-list { list-style: none; margin: 0; padding: 0; display: grid; gap: 1rem; } .pub-item { padding: 1.25rem 1.4rem; background: var(--bg); border: 1px solid var(--border); border-radius: var(--radius); box-shadow: var(--shadow); } .pub-title { font-size: 1.08rem; font-weight: 700; color: var(--text); margin-bottom: .35rem; } .pub-authors { font-size: .95rem; color: var(--text); margin: 0 0 .25rem; } .pub-meta { font-size: .88rem; color: var(--muted); margin: 0 0 .6rem; } .pub-venue { font-weight: 600; color: var(--accent); } .pub-links { display: flex; flex-wrap: wrap; gap: .45rem; } .chip { font-size: .8rem; font-weight: 600; padding: .28rem .7rem; border-radius: 999px; background: var(--accent-soft); color: var(--accent); border: 1px solid transparent; } .chip:hover { text-decoration: none; border-color: var(--accent); } /* ----- footer ----- */ .site-footer { border-top: 1px solid var(--border); background: var(--surface); padding: 3rem 0; margin-top: 2rem; } .footer-inner { display: flex; justify-content: space-between; align-items: center; gap: 2rem; flex-wrap: wrap; } .footer-brand { font-size: 1.5rem; font-weight: 800; letter-spacing: -0.03em; } .footer-tag { color: var(--muted); margin: .2rem 0 .6rem; } .footer-nus-card { display: inline-flex; align-items: center; justify-content: center; background: #fff; padding: 1.1rem 1.6rem; border-radius: var(--radius); box-shadow: var(--shadow); } .footer-nus-card:hover { text-decoration: none; } .footer-nus-card img { width: 210px; border-radius: 0; } /* ----- misc ----- */ :focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; border-radius: 4px; } @media (prefers-reduced-motion: reduce) { * { transition: none !important; scroll-behavior: auto; } }