/* Homepage layout; shared colors, navigation, and project cards live in style.css. */
html { scroll-behavior: smooth; scroll-padding-top: 110px; }
.pill-nav { grid-template-columns: 1fr auto; }
.pn-mid { padding: 0; }
.orbit-icon { width: 26px; height: 26px; flex-shrink: 0; }
.orbit-r1, .orbit-r2, .orbit-r3 { transform-origin: 16px 16px; animation: orbitSpin 4s linear infinite; }
.orbit-r2 { animation-duration: 2.6s; animation-direction: reverse; }
.orbit-r3 { animation-duration: 1.8s; }
@keyframes orbitSpin { to { transform: rotate(360deg); } }
.skip-link { position: fixed; top: -80px; left: 24px; z-index: 1100; padding: 12px; background: var(--bg); color: var(--text); }
.skip-link:focus { top: 12px; }
a:focus-visible { outline: 2px solid var(--accent); outline-offset: 5px; }
.intro { display: grid; grid-template-columns: 120px minmax(0, 1fr); gap: 48px; max-width: 900px; margin: 0 auto; padding: 120px 48px 24px; }
.intro-photo { width: 120px; height: auto; margin-top: 28px; border-radius: 12px; box-shadow: 0 0 40px rgba(255,255,255,.15), 0 0 80px rgba(255,255,255,.06); }
.intro-text { position: relative; padding: 24px; }
.intro-text::before, .intro-text::after { content: ''; position: absolute; width: 28px; height: 28px; }
.intro-text::before { top: 0; left: 0; border-top: 1.5px solid rgba(255,255,255,.45); border-left: 1.5px solid rgba(255,255,255,.45); }
.intro-text::after { bottom: 0; right: 0; border-bottom: 1.5px solid rgba(255,255,255,.45); border-right: 1.5px solid rgba(255,255,255,.45); }
.intro h1 { margin: 0 0 4px; font-family: 'Space Grotesk', sans-serif; font-size: clamp(32px, 5vw, 44px); font-weight: 400; letter-spacing: -.03em; }
.intro p { font-family: 'Poppins', sans-serif; font-size: 14px; font-weight: 300; line-height: 1.85; margin: 0 0 14px; }
.intro p:last-child { margin-bottom: 0; }
.intro .intro-role { color: var(--text); font-family: 'Space Grotesk', sans-serif; font-size: 22px; margin-bottom: 12px; }
.intro .intro-focus { font-size: 12px; font-weight: 400; color: var(--accent); margin-bottom: 24px; }
.bio-link { color: inherit; text-decoration: none; }
.bio-link:hover { color: var(--text); text-decoration: underline; text-underline-offset: 3px; }
main { max-width: 900px; }
.site-section { padding-bottom: 16px; }
.section-label { display: flex; align-items: center; gap: 20px; margin: 0; padding: 56px 48px 24px; font-family: 'Space Grotesk', sans-serif; font-size: 24px; font-weight: 400; letter-spacing: .12em; text-transform: uppercase; color: var(--muted); }
.section-label::after { content: ''; flex: 1; height: 1px; background: rgba(255,255,255,.12); }
#research .section-label { font-size: 32px; color: var(--text); }
.research-list { display: grid; gap: 24px; padding: 0 48px; }
.research-card { border: 1px solid rgba(255,255,255,.12); border-radius: 0; background: #111; overflow: hidden; }
.research-info { padding: 32px; }
.research-card h3 { margin: 0 0 10px; font-family: 'Space Grotesk', sans-serif; font-size: 30px; font-weight: 400; }
.research-subtitle { margin: 0 0 16px; font-family: 'Space Grotesk', sans-serif; font-size: 18px; line-height: 1.5; color: var(--text); }
.research-description { max-width: 65ch; margin: 0 0 20px; color: var(--muted); font-family: 'Poppins', sans-serif; font-size: 14px; font-weight: 300; line-height: 1.85; }
.research-meta { margin: 0; color: var(--muted); font-size: 11px; }
.research-link { display: inline-block; margin-top: 20px; color: var(--text); font-size: 12px; text-decoration: underline; text-underline-offset: 5px; }
.research-link:hover { color: var(--accent); }
.proj-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 3px; padding: 0 48px 48px; }
/* Tight, square image tiles inspired by the reference gallery. */
.proj-grid .proj-card { border-radius: 0; isolation: isolate; }
.proj-grid .proj-card:hover { transform: none; }
.proj-grid .proj-card > img { transition: transform 300ms ease; }
.proj-grid .proj-card:hover > img { transform: scale(1.04); }
.proj-grid .card-grad { background: linear-gradient(to top, rgba(0,0,0,.82), rgba(0,0,0,.15) 45%, transparent 75%); }
.proj-grid .card-info { padding: 18px; }
.proj-grid .card-title { font-size: 21px; font-weight: 400; margin: 0; }
.proj-grid .card-tag, .proj-grid .card-small { display: none; }
footer { max-width: 804px; margin: 32px auto 0; border-top: 1px solid rgba(255,255,255,.12); padding: 40px 0 80px; color: var(--muted); }
footer h2 { margin: 0 0 16px; font-family: 'Space Grotesk', sans-serif; font-size: 24px; font-weight: 400; color: var(--text); }
.contact-email { color: var(--muted); font-size: 14px; text-decoration: none; overflow-wrap: anywhere; }
.contact-email:hover { color: var(--text); }
.footer-social { display: flex; gap: 12px; margin-top: 20px; }
.footer-social svg { width: 18px; height: 18px; fill: var(--muted); }
@media (max-width: 860px) {
  .intro { padding-inline: 24px; gap: 28px; }
  .section-label { padding: 48px 24px 20px; }
  .research-list { padding-inline: 24px; }
  .proj-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); padding: 0 24px 32px; }
  footer { margin-inline: 24px; }
}
@media (max-width: 600px) {
  html { scroll-padding-top: 120px; }
  .pill-nav { top: 12px; width: calc(100% - 24px); padding: 12px 18px; border-radius: 24px; grid-template-columns: 1fr; gap: 12px; }
  .pn-left { justify-content: center; }
  .pn-subtitle { display: none; }
  .pn-mid { justify-content: center; }
  .pn-mid a { padding: 6px 14px; }
  .intro { grid-template-columns: 1fr; padding-top: 136px; gap: 24px; }
  .intro-photo { width: 96px; margin: 0; }
  .intro-text { padding: 20px; }
  .research-info { padding: 24px; }
  .research-card h3 { font-size: 26px; }
  .research-subtitle { font-size: 17px; }
  .proj-grid { grid-template-columns: 1fr; }
}
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .orbit-r1, .orbit-r2, .orbit-r3 { animation: none; }
  .proj-card { transition: none; }
  .proj-card:hover { transform: none; }
  .proj-grid .proj-card > img { transition: none; }
  .proj-grid .proj-card:hover > img { transform: none; }
}