:root {
  color-scheme: light;
  --bg: #fbfbfa;
  --surface: #ffffff;
  --fg: #18181b;
  --muted: #5f6066;
  --faint: #8b8c92;
  --line: #e7e6e3;
  --tag-bg: #f1f0ed;
  --accent: #1d4ed8;
  --shadow: 0 1px 2px rgb(0 0 0 / 0.04), 0 8px 24px rgb(0 0 0 / 0.06);
  --sans: "Inter", system-ui, -apple-system, "Segoe UI", sans-serif;
  --serif: "Newsreader", Georgia, serif;
}
:root[data-theme="dark"] {
  color-scheme: dark;
  --bg: #111113;
  --surface: #18181b;
  --fg: #ececee;
  --muted: #a1a1aa;
  --faint: #71717a;
  --line: #27272a;
  --tag-bg: #232326;
  --accent: #8ab4ff;
  --shadow: 0 1px 2px rgb(0 0 0 / 0.3), 0 8px 24px rgb(0 0 0 / 0.35);
}

* {
  box-sizing: border-box;
}
body {
  margin: 0;
  overflow-x: clip; /* the full-width hero glow uses 100vw, which includes the scrollbar */
  background: var(--bg);
  color: var(--fg);
  font: 16px/1.6 var(--sans);
  -webkit-font-smoothing: antialiased;
}
h1,
h2,
h3,
p,
ol,
ul {
  margin: 0;
}
ol,
ul {
  padding: 0;
  list-style: none;
}
a {
  color: inherit;
  text-decoration-color: var(--line);
  text-decoration-thickness: 1px;
  text-underline-offset: 3px;
}
a:hover {
  text-decoration-color: currentColor;
}
:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 3px;
  border-radius: 3px;
}

.page {
  width: min(880px, calc(100% - 48px));
  margin: 0 auto;
}

/* header */
header {
  padding: 56px 0 40px;
}
.top-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
}
.location {
  color: var(--faint);
  font-size: 14px;
}
.theme-toggle {
  font: inherit;
  font-size: 13px;
  color: var(--muted);
  background: var(--bg); /* stays readable over the hero glow */
  border: 1px solid var(--line);
  border-radius: 999px;
  padding: 4px 12px;
  cursor: pointer;
}
.theme-toggle:hover {
  color: var(--fg);
}
.visually-hidden {
  position: absolute;
  width: 1px;
  height: 1px;
  overflow: hidden;
  clip: rect(0 0 0 0);
  white-space: nowrap;
}
h1 {
  margin-top: 20px;
  font-family: var(--serif);
  font-weight: 500;
  font-size: clamp(40px, 6vw, 56px);
  line-height: 1.05;
  letter-spacing: -0.01em;
}
.intro {
  margin-top: 18px;
  max-width: 620px;
  font-size: 18px;
  color: var(--muted);
}
.contact {
  display: flex;
  gap: 20px;
  margin-top: 24px;
  font-weight: 500;
}
.contact a {
  text-decoration: underline;
  text-decoration-color: var(--line);
}
.contact a:hover {
  text-decoration-color: currentColor;
}

/* sections */
main > section {
  padding: 40px 0;
  border-top: 1px solid var(--line);
}
.section-heading {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  gap: 16px;
  margin-bottom: 24px;
}
h2 {
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--faint);
}
.section-note {
  font-size: 14px;
  color: var(--muted);
}
h3 {
  font-size: 17px;
  font-weight: 600;
  line-height: 1.4;
  letter-spacing: -0.005em;
}
h3 a {
  text-decoration: none;
}
h3 a:hover {
  text-decoration: underline;
}

/* research */
.papers {
  display: grid;
  gap: 28px;
}
.paper {
  display: grid;
  grid-template-columns: 110px 1fr;
  gap: 20px;
}
.venue {
  display: flex;
  flex-direction: column;
  gap: 4px;
  padding-top: 2px;
}
.venue-tag {
  align-self: flex-start;
  font-size: 12px;
  font-weight: 600;
  padding: 2px 8px;
  border-radius: 6px;
  background: var(--tag-bg);
}
.year {
  font-size: 13px;
  color: var(--faint);
  padding-left: 2px;
}
.paper-meta {
  margin-top: 4px;
  font-size: 15px;
  color: var(--muted);
}
.paper-links {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 6px 18px;
  margin-top: 8px;
  font-size: 15px;
  font-weight: 500;
}
.paper-links a {
  color: var(--accent);
  text-decoration: none;
}
.paper-links a:hover {
  text-decoration: underline;
}
.doi {
  font-size: 13px;
  font-weight: 400;
  color: var(--faint);
}
.review-note {
  margin-top: 28px;
  font-size: 14px;
  color: var(--muted);
}

/* projects: equal cards, each with a framed window onto the project rising from the bottom edge */
.project-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 14px;
}
.project {
  position: relative;
  isolation: isolate;
  overflow: hidden;
  display: flex;
  flex-direction: column;
  padding: 18px 18px 138px;
  border: 1px solid var(--line);
  border-radius: 12px;
  background: var(--surface);
  transition: border-color 0.25s, box-shadow 0.3s var(--ease-out);
}
.project-art {
  position: absolute;
  inset: 0;
  z-index: -2;
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: 50% 50%;
}
img.project-art {
  /* a framed window onto the project, rising from the bottom edge of the card */
  top: auto;
  bottom: 0;
  left: 18px;
  width: calc(100% - 36px);
  height: 118px;
  object-position: 50% 0;
  border: 1px solid var(--line);
  border-bottom: 0;
  border-radius: 8px 8px 0 0;
  box-shadow: 0 10px 30px -12px rgba(20, 16, 40, 0.28);
  transform: translateY(8px);
  transition: transform 0.6s var(--ease-out), box-shadow 0.6s var(--ease-out);
}
.project:hover img.project-art {
  transform: translateY(0);
  box-shadow: 0 16px 36px -12px rgba(20, 16, 40, 0.38);
}
.project:hover {
  border-color: color-mix(in srgb, var(--line), var(--fg) 14%);
  box-shadow: var(--shadow);
}
img.project-art.center {
  object-position: 50% 50%;
}
img.project-art.soft {
  filter: saturate(0.5);
  opacity: 0.7;
}
.project-body {
  display: flex;
  flex-direction: column;
  gap: 6px;
  flex: 1;
}
.project h3 a::after {
  content: "";
  position: absolute;
  inset: 0;
}
.project p {
  font-size: 15px;
  color: var(--muted);
}
.project .status {
  white-space: nowrap;
  font-size: 13px;
  color: var(--faint);
}
.project .metric {
  font-size: 14px;
  font-weight: 500;
  color: var(--fg);
}
.tags {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin-top: auto;
  padding-top: 8px;
}
.tags li {
  font-size: 12px;
  color: var(--muted);
  background: var(--tag-bg);
  padding: 2px 8px;
  border-radius: 6px;
}

/* experience */
.jobs {
  display: grid;
  gap: 22px;
}
.job {
  display: grid;
  grid-template-columns: 170px 1fr;
  gap: 20px;
}
.dates {
  font-size: 14px;
  color: var(--faint);
  padding-top: 2px;
}
.job h3 span {
  font-weight: 400;
  color: var(--muted);
}
.job p:not(.dates) {
  margin-top: 4px;
  color: var(--muted);
}

footer {
  display: flex;
  justify-content: space-between;
  gap: 16px;
  flex-wrap: wrap;
  border-top: 1px solid var(--line);
  padding: 24px 0 40px;
  font-size: 14px;
  color: var(--faint);
}

.skip-link {
  position: fixed;
  top: 8px;
  left: 8px;
  padding: 8px 16px;
  background: var(--fg);
  color: var(--bg);
  transform: translateY(-160%);
  z-index: 10;
}
.skip-link:focus {
  transform: none;
}

@media (max-width: 760px) {
  header {
    padding-top: 32px;
  }
  .intro {
    font-size: 16px;
    margin-top: 14px;
  }
  .project-grid {
    grid-template-columns: 1fr;
  }
  .paper,
  .job {
    grid-template-columns: 1fr;
    gap: 6px;
  }
  .venue {
    flex-direction: row;
    align-items: baseline;
    gap: 8px;
  }
}

/* ---- motion: a calm load-in and scroll reveals (all disabled for reduced motion) ---- */
:root {
  --ease-out: cubic-bezier(0.22, 1, 0.36, 1);
}
.name .word {
  display: inline-block;
  overflow: hidden;
  vertical-align: bottom;
  padding-bottom: 0.08em; /* room for descenders inside the clipping box */
  margin-bottom: -0.08em;
}
.name .word > span {
  display: inline-block;
  animation: rise 0.9s var(--ease-out) both;
  animation-delay: calc(80ms + var(--i) * 110ms);
}
.intro-in {
  animation: fade-up 0.8s var(--ease-out) both;
  animation-delay: var(--d, 0ms);
}
@keyframes rise {
  from { transform: translateY(105%); }
  to { transform: none; }
}
@keyframes fade-up {
  from { opacity: 0; transform: translateY(12px); }
  to { opacity: 1; transform: none; }
}
/* scroll reveals: only once site.js has marked the page, so content never stays hidden without JS */
.js .reveal {
  opacity: 0;
  transform: translateY(16px);
  transition: opacity 0.7s var(--ease-out), transform 0.7s var(--ease-out);
  transition-delay: var(--stagger, 0ms);
}
.js .reveal.in {
  opacity: 1;
  transform: none;
}
/* small hover details */
a {
  transition: text-decoration-color 0.2s, color 0.2s;
}
body {
  transition: background-color 0.3s, color 0.3s;
}
@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation: none !important;
    transition: none !important;
  }
  .js .reveal {
    opacity: 1;
    transform: none;
  }
}

/* ---- hero: the gradient glow lives behind the whole header, bleeding to the screen edges ---- */
header {
  position: relative;
  isolation: isolate;
}
.hero-text {
  max-width: 560px;
}
.hero-art {
  position: absolute;
  z-index: -1;
  top: 0;
  left: 50%;
  width: 100vw;
  height: 100%;
  transform: translateX(-50%);
  pointer-events: none;
  /* fade out before the header ends, so no section text ever sits on colour */
  -webkit-mask-image: linear-gradient(to bottom, #000 60%, transparent 96%);
  mask-image: linear-gradient(to bottom, #000 60%, transparent 96%);
}
.hero-art.fallback {
  /* only when WebGL is unavailable */
  background: radial-gradient(40% 70% at 74% 45%, #fdf3ff 0%, #f1d2ff 35%, #c9a2ff 52%, transparent 72%);
}
.shader {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  display: block;
}