:root {
  --bg: #f6f1e8;
  --surface: rgba(255, 251, 245, 0.88);
  --surface-strong: #fffdf8;
  --ink: #172126;
  --muted: #5d6872;
  --line: rgba(23, 33, 38, 0.12);
  --line-strong: rgba(23, 33, 38, 0.22);
  --accent: #124e47;
  --accent-soft: rgba(18, 78, 71, 0.12);
  --warm: #9f5a34;
  --shadow: 0 18px 50px rgba(20, 29, 34, 0.1);
  --radius-xl: 30px;
  --radius-lg: 22px;
  --radius-md: 18px;
  --radius-sm: 999px;
  --max-width: 1100px;
}

*,
*::before,
*::after {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  min-height: 100vh;
  font-family: "Manrope", "Segoe UI", sans-serif;
  color: var(--ink);
  background:
    radial-gradient(circle at 10% 10%, rgba(159, 90, 52, 0.14), transparent 26%),
    radial-gradient(circle at 90% 12%, rgba(18, 78, 71, 0.14), transparent 22%),
    linear-gradient(180deg, #f9f4eb 0%, #f1e9dc 100%);
}

body::before {
  content: "";
  position: fixed;
  inset: 0;
  pointer-events: none;
  background-image:
    linear-gradient(rgba(23, 33, 38, 0.03) 1px, transparent 1px),
    linear-gradient(90deg, rgba(23, 33, 38, 0.03) 1px, transparent 1px);
  background-size: 30px 30px;
  mask-image: linear-gradient(180deg, rgba(0, 0, 0, 0.35), transparent 85%);
}

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

img {
  display: block;
  max-width: 100%;
}

h1,
h2,
h3,
p,
dl,
dd,
dt,
figure {
  margin: 0;
}

ul {
  margin: 0;
  padding: 0;
}

.page-shell {
  width: min(calc(100% - 32px), var(--max-width));
  margin: 0 auto;
  padding: 24px 0 48px;
}

.site-header {
  position: sticky;
  top: 18px;
  z-index: 20;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 14px 20px;
  margin-bottom: 28px;
  border: 1px solid transparent;
  border-radius: var(--radius-sm);
  backdrop-filter: blur(14px);
  transition:
    background-color 200ms ease,
    border-color 200ms ease,
    box-shadow 200ms ease;
}

.site-header.is-scrolled {
  background: rgba(255, 251, 245, 0.78);
  border-color: rgba(23, 33, 38, 0.08);
  box-shadow: 0 10px 28px rgba(20, 29, 34, 0.08);
}

.brand {
  font-size: 1rem;
  font-weight: 800;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

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

.site-nav a,
.paper-links a,
.contact-links a {
  transition:
    color 180ms ease,
    border-color 180ms ease,
    transform 180ms ease,
    background-color 180ms ease;
}

.site-nav a {
  font-size: 0.95rem;
  color: var(--muted);
}

.site-nav a:hover,
.site-nav a:focus-visible,
.paper-links a:hover,
.paper-links a:focus-visible,
.contact-links a:hover,
.contact-links a:focus-visible {
  color: var(--accent);
}

.section {
  padding: 36px 0;
}

.hero,
.research-grid,
.cv-grid {
  display: grid;
  gap: 20px;
}

.hero {
  grid-template-columns: minmax(0, 1.2fr) minmax(280px, 360px);
  align-items: center;
  padding-top: 42px;
}

.hero-copy,
.hero-photo,
.paper-card,
.cv-card,
.contact-panel {
  position: relative;
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: var(--radius-xl);
  background: var(--surface);
  box-shadow: var(--shadow);
}

.hero-copy,
.contact-panel {
  padding: clamp(28px, 4vw, 42px);
}

.hero-photo,
.paper-card,
.cv-card {
  padding: 22px;
}

.hero-copy::after,
.hero-photo::after,
.paper-card::after,
.cv-card::after,
.contact-panel::after {
  content: "";
  position: absolute;
  inset: 0;
  border-radius: inherit;
  pointer-events: none;
  background:
    linear-gradient(135deg, rgba(255, 255, 255, 0.28), transparent 34%),
    linear-gradient(320deg, rgba(18, 78, 71, 0.04), transparent 24%);
}

.eyebrow {
  margin-bottom: 10px;
  font-size: 0.8rem;
  font-weight: 800;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--accent);
}

h1,
h2 {
  font-family: "Instrument Serif", Georgia, serif;
  font-weight: 400;
  letter-spacing: -0.03em;
  line-height: 0.98;
}

h1 {
  font-size: clamp(3.2rem, 7vw, 5.5rem);
}

h2 {
  font-size: clamp(2.2rem, 4.5vw, 3.7rem);
}

h3 {
  font-size: 1.24rem;
  line-height: 1.3;
}

p,
li,
dd,
.section-note {
  line-height: 1.7;
}

.hero-role {
  margin-top: 14px;
  max-width: 34rem;
  font-size: 1.08rem;
  font-weight: 700;
}

.hero-text,
.section-note,
.paper-card p,
.cv-item p,
.site-nav a,
.paper-links span,
.contact-links a,
.site-footer {
  color: var(--muted);
}

.hero-text {
  max-width: 40rem;
  margin-top: 18px;
}

.hero-points {
  display: grid;
  gap: 10px;
  margin-top: 22px;
  list-style: none;
}

.hero-points li {
  position: relative;
  padding-left: 22px;
}

.hero-points li::before {
  content: "";
  position: absolute;
  top: 11px;
  left: 0;
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--warm);
}

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

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 48px;
  padding: 0 20px;
  border-radius: var(--radius-sm);
  font-size: 0.95rem;
  font-weight: 700;
  transition:
    transform 180ms ease,
    background-color 180ms ease,
    border-color 180ms ease,
    color 180ms ease;
}

.button:hover,
.button:focus-visible {
  transform: translateY(-2px);
}

.button-primary {
  color: #fffdf8;
  background: var(--ink);
}

.button-primary:hover,
.button-primary:focus-visible {
  background: var(--accent);
}

.button-secondary {
  border: 1px solid var(--line-strong);
  background: rgba(255, 251, 245, 0.72);
}

.button-secondary:hover,
.button-secondary:focus-visible {
  border-color: var(--accent);
}

.hero-meta {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 16px;
  margin-top: 30px;
  padding-top: 22px;
  border-top: 1px solid var(--line);
}

.hero-meta dt {
  margin-bottom: 6px;
  font-size: 0.78rem;
  font-weight: 800;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--warm);
}

.hero-photo {
  align-self: stretch;
  display: flex;
  align-items: center;
  justify-content: center;
  background:
    radial-gradient(circle at 20% 16%, rgba(159, 90, 52, 0.14), transparent 26%),
    linear-gradient(180deg, rgba(255, 251, 245, 0.95), rgba(244, 236, 224, 0.82));
}

.hero-photo img {
  width: 100%;
  max-width: 300px;
  aspect-ratio: 3 / 4;
  object-fit: cover;
  border-radius: 24px;
  box-shadow: 0 18px 40px rgba(20, 29, 34, 0.14);
}

.section-heading {
  display: grid;
  gap: 10px;
  margin-bottom: 24px;
}

.research-grid {
  grid-template-columns: repeat(12, minmax(0, 1fr));
}

.paper-card {
  display: grid;
  gap: 16px;
}

.paper-card-featured {
  grid-column: span 6;
  background:
    linear-gradient(135deg, rgba(18, 78, 71, 0.08), transparent 36%),
    var(--surface);
}

.research-grid .paper-card:nth-child(2),
.research-grid .paper-card:nth-child(3) {
  grid-column: span 3;
}

.paper-meta {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
}

.paper-tag,
.paper-date {
  font-size: 0.78rem;
  font-weight: 800;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.paper-tag {
  color: var(--accent);
}

.paper-date {
  color: var(--warm);
}

.paper-links {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: auto;
}

.paper-links a,
.paper-links span,
.contact-links a {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 42px;
  padding: 0 14px;
  border: 1px solid var(--line);
  border-radius: var(--radius-sm);
  background: rgba(255, 251, 245, 0.74);
}

.paper-links a:hover,
.paper-links a:focus-visible,
.contact-links a:hover,
.contact-links a:focus-visible {
  transform: translateY(-1px);
  border-color: rgba(18, 78, 71, 0.28);
}

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

.cv-card {
  display: grid;
  gap: 18px;
}

.cv-card-large {
  grid-row: span 2;
}

.cv-item {
  display: grid;
  grid-template-columns: 100px 1fr;
  gap: 14px;
  padding-top: 16px;
  border-top: 1px solid var(--line);
}

.cv-date {
  font-size: 0.8rem;
  font-weight: 800;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--warm);
}

.cv-item strong {
  display: block;
  margin-bottom: 4px;
  line-height: 1.4;
}

.contact-links {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

.contact-panel {
  display: grid;
  gap: 18px;
  background:
    radial-gradient(circle at 90% 20%, rgba(159, 90, 52, 0.15), transparent 28%),
    linear-gradient(135deg, rgba(18, 78, 71, 0.06), transparent 34%),
    var(--surface);
}

.contact-panel h2 {
  max-width: 22ch;
  font-family: "Manrope", "Segoe UI", sans-serif;
  font-size: clamp(1.55rem, 2.8vw, 2.2rem);
  font-weight: 700;
  letter-spacing: -0.02em;
  line-height: 1.18;
}

.site-footer {
  padding-top: 16px;
  text-align: center;
}

[data-reveal] {
  opacity: 0;
  transform: translateY(18px);
  transition:
    opacity 700ms ease,
    transform 700ms ease;
}

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

@media (max-width: 1024px) {
  .hero,
  .cv-grid {
    grid-template-columns: 1fr;
  }

  .research-grid {
    grid-template-columns: 1fr;
  }

  .paper-card-featured,
  .research-grid .paper-card:nth-child(2),
  .research-grid .paper-card:nth-child(3) {
    grid-column: auto;
  }

  .cv-card-large {
    grid-row: auto;
  }
}

@media (max-width: 720px) {
  .page-shell {
    width: min(calc(100% - 20px), var(--max-width));
    padding-top: 14px;
  }

  .site-header {
    position: static;
    padding: 12px 16px;
    border-radius: 22px;
    background: rgba(255, 251, 245, 0.8);
    border-color: rgba(23, 33, 38, 0.08);
  }

  .site-nav {
    gap: 14px;
  }

  .hero {
    padding-top: 18px;
  }

  .hero-copy,
  .hero-photo,
  .paper-card,
  .cv-card,
  .contact-panel {
    border-radius: 24px;
  }

  .hero-meta,
  .cv-item {
    grid-template-columns: 1fr;
  }

  .hero-photo img {
    max-width: 260px;
  }
}

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }

  *,
  *::before,
  *::after {
    animation: none !important;
    transition: none !important;
  }

  [data-reveal] {
    opacity: 1;
    transform: none;
  }
}