*, *::before, *::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; scroll-padding-top: 5rem; }
@media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } }
body {
  margin: 0; background: var(--paper); color: var(--ink);
  font-family: "Hanken Grotesk", system-ui, sans-serif; font-size: 1.0625rem; line-height: 1.6;
}
img { display: block; max-width: 100%; height: auto; }
a { color: var(--link); text-decoration-thickness: 1px; text-underline-offset: 0.18em; }
a:hover { text-decoration-thickness: 2px; }
:focus-visible { outline: 2px solid currentColor; outline-offset: 3px; border-radius: 2px; }
h1, h2, h3 { color: var(--heading); line-height: 1.15; }
.skip { position: absolute; left: -999rem; top: 0; }
.skip:focus { left: 1rem; top: 1rem; z-index: 10; padding: 0.5rem 1rem; background: var(--paper); color: var(--heading); }

/* Masthead */
.masthead {
  position: relative; z-index: 5;
  display: flex; flex-wrap: wrap; align-items: baseline; justify-content: space-between; gap: 0.25rem 1.5rem;
  padding: 0.85rem clamp(1rem, 4vw, 3rem);
  background: color-mix(in srgb, var(--paper) 94%, transparent); backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--line);
}
.masthead-name { color: var(--heading); font-weight: 650; text-decoration: none; letter-spacing: -0.01em; }
.nav { display: flex; flex-wrap: wrap; gap: 0.2rem 1.1rem; font-size: 0.9375rem; }
@media (min-width: 48rem) { .masthead { position: sticky; top: 0; } }
.nav a { color: var(--ink); text-decoration: none; }
.nav a:hover { color: var(--link); text-decoration: underline; }

/* Hero: photo on its own backdrop grey, text in the empty space on the left */
.hero { display: grid; background: var(--hero); color: var(--hero-ink); }
.hero h1, .hero a { color: var(--hero-ink); }
.hero-photo img { width: 100%; aspect-ratio: 4 / 5; max-height: 72vh; object-fit: cover; object-position: 50% 15%; }
.hero-text { padding: 1.75rem clamp(1rem, 4vw, 3rem) 2.5rem; }
.hero h1 { margin: 0 0 1rem; font-size: clamp(2.25rem, 4.4vw, 3.9rem); font-weight: 720; letter-spacing: -0.025em; line-height: 1.02; }
.hero-title { display: block; margin-bottom: 0.45em; font-size: 0.4em; font-weight: 500; letter-spacing: 0; }
.hero-positions { margin: 0 0 1.25rem; padding: 0; list-style: none; font-weight: 500; }
.hero-positions li + li { margin-top: 0.35rem; }
.hero-positions a { text-decoration: none; }
.hero-positions a:hover { text-decoration: underline; }
.hero-statement { max-width: 30ch; margin: 0 0 1.5rem; font-size: 1.25rem; line-height: 1.4; }
.hero-actions { display: flex; flex-wrap: wrap; gap: 0.6rem; margin: 0 0 1.5rem; }
.button {
  display: inline-block; padding: 0.6rem 1.1rem; border-radius: 2px;
  background: #000; color: #fff !important; font-weight: 600; text-decoration: none;
}
.button:hover { background: #333; }
.button:focus-visible { outline-color: #000; }
.hero-links { display: flex; flex-wrap: wrap; gap: 0.3rem 1.1rem; margin: 0; padding: 0; list-style: none; font-size: 0.9375rem; }

@media (min-width: 48rem) {
  .hero { grid-template-columns: minmax(21rem, 36%) 1fr; align-items: center; min-height: min(78vh, 46rem); }
  .hero-photo { grid-column: 2; grid-row: 1; align-self: stretch; display: block; }
  .hero-photo img {
    aspect-ratio: auto; height: 100%; max-height: none; width: 100%; object-fit: cover; object-position: 35% 20%;
    -webkit-mask-image: linear-gradient(to right, transparent, #000 14%); mask-image: linear-gradient(to right, transparent, #000 14%);
  }
  .hero-text { grid-column: 1; grid-row: 1; padding: 3rem 0 3rem clamp(1.5rem, 5vw, 4.5rem); }
}

/* Main column */
main { max-width: 42rem; margin: 0 auto; padding: 0 clamp(1rem, 4vw, 1.5rem); }
main > section { padding-block: clamp(3rem, 7vw, 5.5rem) 0; }
h2 { margin: 0 0 1.25rem; font-size: 1.75rem; font-weight: 720; letter-spacing: -0.015em; }
h3 { margin: 2rem 0 0.5rem; font-size: 1.125rem; font-weight: 650; }
section > h2 + h3 { margin-top: 0; }
p { margin: 0 0 1rem; }
.lead { font-size: 1.25rem; line-height: 1.55; color: var(--heading); }
.note, .meta, .ref, .pub-authors, .year, .contact-note { color: var(--muted); }
.meta, .ref, .note { font-size: 0.9375rem; }

.research-item { margin-bottom: 1.75rem; }
.research-item h3 { margin: 0 0 0.35rem; }
.research-item p { margin-bottom: 0.35rem; }

.projects, .pubs, .dated { margin: 0 0 1.25rem; padding: 0; list-style: none; }
.project { margin-bottom: 1.5rem; }
.project h3 { margin: 0; }
.project-title { margin: 0.15rem 0; }
.project .meta { margin: 0; }
.pubs li { margin-bottom: 1rem; }
.pub-title { color: var(--heading); }

.dated li { display: grid; grid-template-columns: 7.25rem 1fr; gap: 1rem; padding: 0.3rem 0; }
.year { font-variant-numeric: tabular-nums; white-space: nowrap; }

.link-row { display: flex; flex-wrap: wrap; gap: 0.4rem 1.25rem; }

.service-grid { display: grid; gap: 0 2.5rem; }
.service-grid h3 { margin-top: 1.5rem; }
.service-grid ul { margin: 0; padding-left: 1.1rem; }
.service-grid li { margin-bottom: 0.35rem; }
@media (min-width: 40rem) { .service-grid { grid-template-columns: 1fr 1fr; } }

.contact-email { font-size: 1.25rem; }

/* Footer */
.footer { margin-top: clamp(4rem, 9vw, 7rem); border-top: 1px solid var(--line); color: var(--muted); font-size: 0.875rem; }
.legal { max-width: 64rem; margin: 0 auto; padding: 2.5rem clamp(1rem, 4vw, 3rem) 3rem; }
.legal h2 { font-size: 1rem; }
.legal h3 { margin: 1rem 0 0.35rem; font-size: 0.9375rem; color: var(--ink); }
.legal-cols { display: grid; gap: 0 3rem; }
@media (min-width: 48rem) { .legal-cols { grid-template-columns: 1fr 2fr; } }
.legal-meta { margin-top: 1.5rem; }

@media print {
  .masthead, .hero-actions { display: none; }
  .hero { background: none; }
}