@import url('https://fonts.googleapis.com/css2?family=Fraunces:opsz,wght@9..144,500;9..144,700&family=Space+Grotesk:wght@300;400;500;600&display=swap');

:root {
  --bg: #eef4ff;
  --bg-2: #f6efe7;
  --ink: #141414;
  --muted: #3e3e3e;
  --accent: #1c3f8a;
  --accent-2: #d36a5f;
  --card: #f7f6f3;
  --line: rgba(0, 0, 0, 0.1);
  --shadow: 0 24px 60px rgba(10, 10, 10, 0.14);
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: "Space Grotesk", "Helvetica Neue", Arial, sans-serif;
  color: var(--ink);
  background:
    radial-gradient(60% 40% at 12% 18%, rgba(28, 63, 138, 0.2), transparent 60%),
    radial-gradient(50% 40% at 90% 12%, rgba(211, 106, 95, 0.22), transparent 60%),
    radial-gradient(40% 30% at 70% 85%, rgba(28, 63, 138, 0.12), transparent 60%),
    repeating-linear-gradient(135deg, rgba(20, 20, 20, 0.04), rgba(20, 20, 20, 0.04) 2px, transparent 2px, transparent 14px),
    linear-gradient(180deg, var(--bg), var(--bg-2));
  min-height: 100vh;
}

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

a:hover {
  color: var(--accent);
}

a:link,
a:visited {
  color: var(--accent);
}

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

.skip-link {
  position: absolute;
  top: -40px;
  left: 16px;
  background: var(--accent);
  color: white;
  padding: 8px 12px;
  border-radius: 999px;
  z-index: 1000;
}

.skip-link:focus {
  top: 16px;
}

.wrap {
  width: min(1120px, 92vw);
  margin: 0 auto;
}

.site-header {
  position: sticky;
  top: 0;
  backdrop-filter: blur(14px);
  background: rgba(238, 244, 255, 0.92);
  border-bottom: 1px solid var(--line);
  z-index: 10;
}

.site-header .wrap {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 18px 0;
  gap: 24px;
}


.brand {
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.brand a {
  font-family: "Fraunces", Georgia, serif;
  font-size: 1.3rem;
  letter-spacing: 0.02em;
}

.brand span {
  font-size: 0.85rem;
  color: var(--muted);
}

.site-nav {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
  font-size: 0.95rem;
}

.site-nav a {
  padding: 6px 10px;
  border-radius: 999px;
  border: 1px solid transparent;
}

.site-nav a:hover,
.site-nav a[aria-current="page"] {
  border-color: var(--accent);
  color: var(--accent);
}

.hero {
  padding: 64px 0 48px;
}

.hero-grid {
  display: grid;
  grid-template-columns: minmax(0, 4fr) minmax(0, 1fr);
  gap: 36px;
  align-items: start;
}

.hero-card {
  background: var(--card);
  border-radius: 24px;
  padding: 32px;
  box-shadow: var(--shadow);
  border: 1px solid var(--line);
  text-align: left;
}

.hero-card h1 {
  font-family: "Fraunces", Georgia, serif;
  font-size: clamp(2.2rem, 4vw, 3.3rem);
  margin: 0 0 12px;
}

.hero-card p {
  margin: 8px 0;
  color: var(--muted);
  line-height: 1.6;
}

.hero-actions {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
  margin-top: 18px;
  justify-content: flex-start;
}

.icon-link {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 42px;
  height: 42px;
  border-radius: 50%;
  border: 1px solid var(--line);
  background: var(--card);
  box-shadow: 0 8px 18px rgba(10, 10, 10, 0.08);
}

.icon-link img {
  width: 22px;
  height: 22px;
  object-fit: contain;
}

.button {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 10px 18px;
  border-radius: 999px;
  border: 1px solid var(--accent);
  color: var(--accent);
  font-weight: 500;
}

.button.primary {
  background: var(--accent);
  color: white;
}

.hero-portrait {
  width: min(220px, 70vw);
  aspect-ratio: 1 / 1;
  border-radius: 50%;
  overflow: hidden;
  border: 2px solid var(--line);
  background: #f2efe8;
  box-shadow: var(--shadow);
  justify-self: end;
}

.hero-portrait img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  filter: grayscale(100%);
}

.section {
  padding: 40px 0;
}

.section h2 {
  font-family: "Fraunces", Georgia, serif;
  font-size: 1.8rem;
  margin: 0 0 18px;
}

.grid {
  display: grid;
  gap: 20px;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
}

.card {
  background: var(--card);
  border-radius: 18px;
  padding: 20px;
  border: 1px solid var(--line);
  box-shadow: 0 16px 40px rgba(15, 15, 15, 0.06);
}

.card h3 {
  margin: 0 0 8px;
  font-size: 1.1rem;
}

.card p {
  margin: 0;
  color: var(--muted);
  line-height: 1.5;
}

.list {
  display: grid;
  gap: 16px;
  padding-left: 20px;
  margin: 0;
  list-style: disc;
}

.timeline {
  display: grid;
  gap: 18px;
}

.timeline-item {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: 16px;
  padding: 16px 18px;
  box-shadow: 0 16px 40px rgba(15, 15, 15, 0.06);
}

.timeline-item h4 {
  margin: 0 0 6px;
  font-size: 1rem;
}

.timeline-item p {
  margin: 0;
  color: var(--muted);
  line-height: 1.5;
}

.tag {
  display: inline-flex;
  align-items: center;
  padding: 4px 10px;
  border-radius: 999px;
  border: 1px solid var(--line);
  background: rgba(28, 63, 138, 0.12);
  color: var(--accent);
  font-size: 0.85rem;
}

.pub-year {
  font-weight: 600;
  color: var(--accent);
  margin-top: 24px;
  padding-top: 8px;
  list-style: none;
}

.pub-item {
  padding: 16px 18px;
  border-radius: 16px;
  border: 1px solid var(--line);
  background: var(--card);
  box-shadow: 0 12px 26px rgba(12, 12, 12, 0.08);
}

.pub-item h4 {
  margin: 0 0 6px;
  font-size: 1rem;
}

.pub-item p {
  margin: 0;
  color: var(--muted);
  line-height: 1.5;
  font-size: 0.95rem;
}

.note {
  color: var(--muted);
  font-size: 0.95rem;
}

.split {
  display: grid;
  gap: 20px;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
}

.site-footer {
  padding: 40px 0 60px;
  border-top: 1px solid var(--line);
  margin-top: 40px;
  background: rgba(238, 244, 255, 0.92);
}

.footer-grid {
  display: flex;
  flex-wrap: wrap;
  gap: 24px;
  justify-content: space-between;
  align-items: center;
}

.footer-grid p {
  margin: 0;
  color: var(--muted);
}

.pdf-frame {
  width: 100%;
  aspect-ratio: 4 / 5;
  border: 1px solid var(--line);
  border-radius: 18px;
  overflow: hidden;
  background: white;
}

.pdf-frame iframe {
  width: 100%;
  height: 100%;
  border: 0;
}

@media (max-width: 720px) {
  .site-header .wrap {
    flex-direction: column;
    align-items: flex-start;
  }

  .hero {
    padding-top: 40px;
  }

  .hero-grid {
    grid-template-columns: 1fr;
    justify-items: center;
  }

  .hero-card {
    text-align: center;
  }

  .hero-actions {
    justify-content: center;
  }
}

.research-list {
  padding-left: 20px;
  margin: 0;
}

.research-list li {
  margin-bottom: 16px;
}

.research-list h3 {
  margin: 0 0 4px;
  font-size: 1.1rem;
}

.research-list p {
  margin: 0;
  color: var(--muted);
}