:root {
  --bg: #fcf8fb;
  --bg-strong: #f7f0f5;
  --surface: rgba(255, 255, 255, 0.84);
  --surface-strong: rgba(255, 255, 255, 0.92);
  --text: #271c29;
  --muted: #6e6270;
  --line: rgba(39, 28, 41, 0.1);
  --accent: #a44f79;
  --accent-soft: #f6e9f0;
  --gold: #9f6882;
  --shadow: 0 12px 30px rgba(111, 74, 93, 0.08);
  --max-width: 1200px;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  background:
    radial-gradient(circle at top left, rgba(236, 192, 214, 0.26), transparent 30%),
    radial-gradient(circle at 84% 10%, rgba(226, 176, 201, 0.18), transparent 22%),
    linear-gradient(180deg, #fefbfd 0%, var(--bg) 100%);
  color: var(--text);
  font-family: "Inter", sans-serif;
}

.grain {
  position: fixed;
  inset: 0;
  z-index: -1;
  pointer-events: none;
  opacity: 0.025;
  background-image:
    linear-gradient(rgba(42, 23, 48, 0.12) 1px, transparent 1px),
    linear-gradient(90deg, rgba(42, 23, 48, 0.12) 1px, transparent 1px);
  background-size: 34px 34px;
}

a {
  color: inherit;
  text-decoration: none;
}

.site-header,
main,
.site-footer {
  width: min(calc(100% - 32px), var(--max-width));
  margin: 0 auto;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 20;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 24px 0 18px;
  background: rgba(252, 248, 251, 0.84);
  border-bottom: 1px solid var(--line);
  backdrop-filter: blur(16px);
}

.brand {
  font-size: 1rem;
  font-weight: 800;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.site-nav {
  display: flex;
  gap: 18px;
  flex-wrap: wrap;
}

.site-nav a,
.button,
.contact-grid a,
.project-card,
.publication-item a {
  transition:
    transform 180ms ease,
    opacity 180ms ease,
    border-color 180ms ease,
    background-color 180ms ease;
}

.site-nav a {
  color: var(--muted);
  font-size: 0.94rem;
}

.section {
  padding: 40px 0 48px;
}

.hero {
  min-height: calc(100svh - 96px);
  display: grid;
  grid-template-columns: minmax(0, 1.28fr) minmax(260px, 0.72fr);
  gap: 34px;
  align-items: center;
}

.eyebrow {
  margin: 0 0 18px;
  color: var(--accent);
  font-size: 0.82rem;
  font-weight: 800;
  letter-spacing: 0.18em;
  text-transform: uppercase;
}

.hero h1,
.section-heading h2,
.highlight-panel h2,
.students-panel h2 {
  margin: 0;
  line-height: 1;
}

.hero h1 {
  max-width: 11ch;
  font-family: "Instrument Serif", serif;
  font-size: clamp(3.1rem, 6.8vw, 5.4rem);
  font-weight: 400;
  letter-spacing: -0.04em;
}

.hero-text,
.intro-body p,
.research-card p,
.publication-item p,
.students-panel p,
.timeline-item p,
.info-card p,
.project-card p {
  color: var(--muted);
  line-height: 1.8;
}

.hero-text {
  max-width: 42rem;
  margin: 22px 0 0;
  font-size: 1.06rem;
}

.hero-note {
  margin: 18px 0 0;
  color: var(--muted);
  font-size: 0.96rem;
  line-height: 1.7;
}

.hero-actions {
  display: flex;
  gap: 14px;
  flex-wrap: wrap;
  margin-top: 28px;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 50px;
  padding: 0 24px;
  border: 1px solid var(--line);
  border-radius: 999px;
  font-weight: 700;
}

.button-primary {
  background: var(--accent);
  border-color: var(--accent);
  color: #fff;
  box-shadow: 0 8px 22px rgba(164, 79, 121, 0.14);
}

.button-secondary {
  background: rgba(255, 255, 255, 0.62);
}

.students-list {
  padding: 0;
  margin: 0;
  list-style: none;
}

.hero-visual {
  position: relative;
  min-height: 520px;
}

.portrait-frame {
  position: absolute;
  inset: 18px 22px 88px 22px;
  overflow: hidden;
  border-radius: 14px;
  border: 1px solid rgba(42, 23, 48, 0.08);
  box-shadow: var(--shadow);
  background: var(--bg-strong);
}

.portrait-frame img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.floating-card {
  position: absolute;
  right: 18px;
  bottom: 18px;
  width: min(76%, 300px);
  padding: 14px;
  border: 1px solid rgba(42, 23, 48, 0.08);
  border-radius: 12px;
  background: var(--surface-strong);
  backdrop-filter: blur(18px);
  box-shadow: var(--shadow);
}

.card-label,
.pub-year,
.research-card span,
.project-card span {
  margin: 0 0 8px;
  color: var(--gold);
  font-size: 0.8rem;
  font-weight: 800;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.floating-card h2 {
  margin: 0;
  font-size: clamp(1.05rem, 1.8vw, 1.25rem);
  line-height: 1.35;
}

.section-heading {
  display: grid;
  gap: 10px;
  margin-bottom: 26px;
}

.section-heading h2,
.highlight-panel h2,
.students-panel h2 {
  font-size: clamp(1.95rem, 4.5vw, 3.4rem);
}

.intro-grid,
.two-column-grid,
.contact-grid {
  display: grid;
  gap: 22px;
}

.intro-grid {
  grid-template-columns: minmax(0, 0.95fr) minmax(0, 1.05fr);
  gap: 30px;
}

.lead {
  margin: 0;
  font-family: "Instrument Serif", serif;
  font-size: clamp(1.65rem, 3.4vw, 2.5rem);
  line-height: 1.2;
}

.intro-body {
  display: grid;
  gap: 14px;
}

.intro-body p,
.students-panel p {
  margin: 0;
}

.research-grid,
.project-grid {
  display: grid;
  gap: 18px;
}

.research-grid {
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.project-grid {
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.research-card,
.highlight-panel,
.students-panel,
.contact-grid a,
.info-card,
.project-card {
  border: 1px solid var(--line);
  background: var(--surface);
  box-shadow: var(--shadow);
  backdrop-filter: blur(10px);
}

.research-card,
.info-card {
  min-height: 0;
  padding: 18px;
  border-radius: 14px;
}

.research-card h3,
.info-card h3 {
  margin: 0 0 10px;
  font-size: 1.42rem;
}

.highlight-panel,
.students-panel {
  padding: 22px;
  border-radius: 14px;
}

.timeline {
  border-top: 1px solid var(--line);
}

.timeline-item,
.publication-item {
  display: grid;
  gap: 20px;
  align-items: start;
  padding: 18px 0;
  border-bottom: 1px solid var(--line);
}

.timeline-item {
  grid-template-columns: 110px 1fr;
}

.timeline-item h3 {
  margin: 0 0 10px;
  font-size: 1.32rem;
}

.timeline-item p {
  margin: 0;
}

.publication-item {
  grid-template-columns: minmax(0, 1fr) auto;
}

.publication-item h4 {
  margin: 0 0 10px;
  font-size: 1.18rem;
  line-height: 1.25;
}

.publication-item p {
  margin: 0;
  max-width: 54rem;
}

.pub-links {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
  justify-content: flex-end;
}

.pub-toolbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  margin-bottom: 18px;
  padding-bottom: 16px;
  border-bottom: 1px solid var(--line);
}

.pub-filter-group {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
}

.pub-filter {
  min-height: 38px;
  padding: 0 14px;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.82);
  color: var(--muted);
  font: inherit;
  font-weight: 600;
  cursor: pointer;
}

.pub-filter.is-active {
  border-color: var(--accent);
  background: var(--accent-soft);
  color: var(--accent);
}

.pub-toolbar-link {
  color: var(--accent);
  font-weight: 600;
}

.publication-groups {
  display: grid;
  gap: 22px;
}

.publication-year-group {
  padding-top: 6px;
}

.year-heading {
  margin: 0 0 10px;
  font-size: 1.45rem;
  font-weight: 700;
}

.publication-item a,
.students-list a,
.project-card strong,
.contact-grid strong,
.info-card a {
  color: var(--accent);
}

.publication-item a {
  font-weight: 700;
}

.two-column-grid {
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.students-list {
  display: grid;
  gap: 10px;
  margin-top: 18px;
}

.students-list li {
  padding-top: 12px;
  border-top: 1px solid var(--line);
  color: var(--muted);
  line-height: 1.75;
}

.project-card {
  display: grid;
  gap: 10px;
  min-height: 0;
  padding: 16px;
  border-radius: 14px;
}

.project-card strong {
  font-size: 1.2rem;
}

.project-card p {
  margin: 0;
}

.contact-grid {
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 18px;
}

.contact-grid a {
  display: grid;
  gap: 8px;
  padding: 16px;
  border-radius: 14px;
}

.contact-grid span {
  color: var(--muted);
  font-size: 0.9rem;
}

.contact-grid strong {
  font-size: 1.1rem;
  line-height: 1.35;
}

.site-footer {
  padding: 0 0 32px;
  color: var(--muted);
  font-size: 0.92rem;
}

.reveal {
  opacity: 0;
  transform: translateY(16px);
  transition:
    opacity 520ms ease,
    transform 520ms ease;
}

.reveal.is-visible {
  opacity: 1;
  transform: translateY(0);
}

.site-nav a:hover,
.button:hover,
.contact-grid a:hover,
.project-card:hover,
.publication-item a:hover {
  transform: translateY(-2px);
}

@media (max-width: 980px) {
  .hero,
  .intro-grid,
  .research-grid,
  .project-grid,
  .two-column-grid,
  .contact-grid,
  .publication-item,
  .timeline-item {
    grid-template-columns: 1fr;
  }

  .hero {
    min-height: auto;
    padding-top: 8px;
  }

  .hero-visual {
    min-height: 460px;
  }

  .pub-links {
    justify-content: flex-start;
  }

  .pub-toolbar {
    align-items: flex-start;
    flex-direction: column;
  }
}

@media (max-width: 640px) {
  .site-header,
  main,
  .site-footer {
    width: min(calc(100% - 22px), var(--max-width));
  }

  .site-header {
    align-items: flex-start;
    flex-direction: column;
    gap: 12px;
  }

  .hero h1 {
    font-size: clamp(3rem, 17vw, 4.8rem);
  }

  .hero-visual {
    min-height: auto;
  }

  .portrait-frame {
    position: static;
    aspect-ratio: 4 / 5;
  }

  .floating-card {
    position: static;
    width: 100%;
    margin-top: 14px;
  }

  .button {
    width: 100%;
  }
}