:root {
  --bg: #ffffff;
  --paper: #ffffff;
  --stone: #f0f0f0;
  --text: #191919;
  --muted: #6b6b6b;
  --accent: #d97757;
  --accent-dark: #a35238;
  --leaf: #8da399;
  --border: rgba(25, 25, 25, 0.08);
}

* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

body {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  color: var(--text);
  background: var(--bg);
  line-height: 1.7;
  min-height: 100vh;
}

a {
  color: #1772d0;
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: color 0.2s ease, border-color 0.2s ease;
}

a:hover {
  color: #f09228;
  border-bottom-color: #f09228;
}

.nav-links a,
.pill,
.contact-link {
  border-bottom: none;
}

body::before {
  display: none;
}

.grain-overlay {
  display: none;
}

.site-hero,
main,
.site-footer {
  position: relative;
  z-index: 1;
}

.site-hero {
  padding: 3rem 6vw 4rem;
  max-width: 1100px;
  margin: 0 auto;
}

.site-nav {
  display: flex;
  justify-content: space-between;
  align-items: center;
  border-bottom: 1px solid var(--border);
  padding-bottom: 1rem;
  margin-bottom: 3rem;
}

.site-nav__logo {
  font-family: 'Crimson Pro', serif;
  font-size: 1.1rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
}

.nav-links {
  display: flex;
  gap: 1rem;
  font-size: 0.85rem;
  text-transform: uppercase;
  letter-spacing: 0.2em;
}

.nav-link {
  color: var(--text);
  text-decoration: none;
  padding: 0.3rem 0.6rem;
  border-radius: 999px;
  transition: color 0.2s ease, background 0.2s ease;
}

.nav-link.active {
  color: var(--accent-dark);
  border-bottom: 1px solid var(--accent-dark);
}

.nav-link.disabled {
  opacity: 0.4;
  cursor: not-allowed;
}

.hero-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 3rem;
  align-items: center;
}

.hero-text h1 {
  font-family: 'Crimson Pro', serif;
  font-size: clamp(2rem, 4vw, 3rem);
  margin-bottom: 1.5rem;
}

.name-cn {
  font-family: 'Inter', sans-serif;
  font-size: clamp(1rem, 3vw, 1.2rem);
  letter-spacing: 0.2em;
  text-transform: uppercase;
  margin-top: -1rem;
  margin-bottom: 1.5rem;
  color: var(--muted);
}

.eyebrow {
  text-transform: uppercase;
  letter-spacing: 0.2em;
  font-size: 0.78rem;
  color: var(--muted);
  margin-bottom: 0.9rem;
}

.lede {
  font-size: 1.1rem;
  color: var(--muted);
  max-width: 48ch;
}

.hero-actions {
  margin-top: 1.5rem;
  display: flex;
  gap: 1rem;
  flex-wrap: wrap;
}

.hero-card {
  background: transparent;
  border: none;
  border-radius: 20px;
  padding: 0;
  box-shadow: none;
  display: flex;
  justify-content: center;
  flex-direction: column;
  align-items: center;
}

.hero-card__photo {
  width: min(320px, 80vw);
  height: min(320px, 80vw);
  border-radius: 16px;
  object-fit: cover;
  border: none;
}

.hero-identity {
  text-align: center;
  margin-bottom: 1.5rem;
}

.hero-identity h2 {
  font-family: 'Crimson Pro', serif;
  font-size: 1.8rem;
  margin-bottom: 0.4rem;
}

.hero-identity p {
  color: var(--muted);
  font-size: 0.95rem;
}

.hero-card__tag {
  text-transform: uppercase;
  letter-spacing: 0.14em;
  font-size: 0.75rem;
  color: var(--accent-dark);
  margin-bottom: 1rem;
}

.hero-card__note {
  text-align: center;
  font-style: italic;
  color: var(--muted);
  font-size: 0.95rem;
}

.contact-links {
  margin-top: 1.5rem;
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
  font-size: 0.95rem;
}

.contact-link {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  color: var(--text);
  text-decoration: none;
  padding: 0.35rem;
  border-radius: 16px;
  background: transparent;
}

.contact-icon {
  width: 32px;
  height: 32px;
  border-radius: 999px;
  background: var(--stone);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.contact-icon svg {
  width: 18px;
  height: 18px;
  stroke: var(--text);
  fill: none;
  stroke-width: 1.6;
  stroke-linecap: round;
  stroke-linejoin: round;
}

.contact-link--github .contact-icon svg {
  stroke: none;
  fill: var(--text);
}

.contact-link--linkedin .contact-icon {
  background: #f0f0f0;
}
.contact-link--linkedin .contact-icon svg {
  stroke: var(--text);
}

.contact-link:hover {
  color: var(--accent-dark);
}
.contact-link.disabled {
  cursor: default;
  opacity: 0.6;
}

.contact-link.disabled:hover {
  color: var(--text);
}

main {
  max-width: 1100px;
  margin: 0 auto;
  padding: 0 6vw 4rem;
}

.section {
  padding: 3.5rem 0;
  border-bottom: 1px solid var(--border);
}

.section:last-of-type {
  border-bottom: none;
}

.section--highlight {
  background: var(--paper);
  padding: 4rem;
  border-radius: 30px;
  border: 1px solid var(--border);
  margin-bottom: 3rem;
}

.section-heading {
  max-width: 720px;
  margin-bottom: 2.5rem;
}

.section-heading h2 {
  font-family: 'Crimson Pro', serif;
  font-size: clamp(1.9rem, 4vw, 2.8rem);
  margin-bottom: 0.8rem;
}

.section-heading p {
  color: var(--muted);
}

.section--placeholder {
  text-align: center;
  color: var(--muted);
}

.placeholder-label {
  font-family: 'Crimson Pro', serif;
  font-size: 1.4rem;
  margin-bottom: 0.5rem;
  color: var(--text);
}

.placeholder-text {
  font-size: 0.95rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
}

.grid {
  display: grid;
  gap: 1.5rem;
}

.focus-grid {
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
}

.card {
  background: #fff;
  border-radius: 20px;
  border: 1px solid var(--border);
  padding: 1.5rem;
  min-height: 220px;
}

.card-eyebrow {
  color: var(--leaf);
  font-size: 0.85rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

.card h3 {
  font-family: 'Crimson Pro', serif;
  margin: 0.5rem 0 0.7rem;
}

.card p {
  color: var(--muted);
}

.news-heading {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  border-bottom: 1px solid var(--border);
  padding-bottom: 1rem;
  margin-bottom: 1.5rem;
}

.news-heading__label {
  font-size: 0.75rem;
  letter-spacing: 0.3em;
  text-transform: uppercase;
  color: var(--muted);
}

.news-list {
  max-height: 260px;
  overflow-y: auto;
  padding-right: 1rem;
}

.news-list__inner {
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
}

.news-item {
  display: flex;
  gap: 1.5rem;
  align-items: flex-start;
}

.news-item__date {
  font-family: "SFMono-Regular", "Roboto Mono", Menlo, monospace;
  font-size: 0.9rem;
  color: var(--muted);
  white-space: nowrap;
  flex-shrink: 0;
}

.news-item p {
  margin: 0;
  color: var(--muted);
  line-height: 1.6;
  transition: color 0.2s ease;
}

.news-item:hover p {
  color: var(--text);
}

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

.research-card {
  background: #fff;
  border: 1px solid var(--border);
  border-radius: 18px;
  padding: 1.75rem;
  display: flex;
  flex-direction: column;
  gap: 0.8rem;
  min-height: 280px;
}

.research-card__meta {
  display: flex;
  justify-content: space-between;
  font-size: 0.9rem;
  color: var(--muted);
}

.research-card__tag {
  text-transform: uppercase;
  letter-spacing: 0.1em;
  font-size: 0.75rem;
  color: var(--accent);
}

.research-card h3 {
  font-family: 'Crimson Pro', serif;
  font-size: 1.4rem;
}

.research-card p {
  color: var(--muted);
}

.research-card__links a {
  font-size: 0.85rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  margin-right: 1rem;
  color: var(--text);
  text-decoration: none;
  border-bottom: 1px solid var(--accent);
}

.travel {
  margin-top: 3rem;
}

.travel-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 1.5rem;
}

.travel-grid article {
  background: #fff;
  border-radius: 18px;
  border: 1px solid var(--border);
  padding: 1.5rem;
}

.travel-grid h3 {
  font-family: 'Crimson Pro', serif;
}

.travel-grid p {
  color: var(--muted);
  margin: 0.5rem 0 1rem;
}

.travel-grid span {
  font-size: 0.85rem;
  text-transform: uppercase;
  letter-spacing: 0.15em;
  color: var(--leaf);
}

.blog-grid {
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
}

.blog-card {
  background: #fff;
  border-radius: 18px;
  border: 1px solid var(--border);
  padding: 1.5rem;
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
  min-height: 230px;
}

.blog-card__date {
  font-size: 0.85rem;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--muted);
}

.blog-card h3 {
  font-family: 'Crimson Pro', serif;
  font-size: 1.25rem;
}

.blog-card a {
  text-transform: uppercase;
  font-size: 0.8rem;
  letter-spacing: 0.12em;
  color: var(--accent-dark);
  text-decoration: none;
  border-bottom: 1px solid var(--accent-dark);
  width: fit-content;
}

.site-footer {
  margin-bottom: 2rem;
  min-height: 1px;
}

@media (max-width: 900px) {
  .section--highlight {
    padding: 3rem 1.5rem;
  }

  .site-nav {
    flex-direction: column;
    gap: 1rem;
    text-align: center;
  }

  .site-footer {
    flex-direction: column;
    align-items: flex-start;
  }
}

@media (max-width: 600px) {
  .hero-actions {
    flex-direction: column;
    align-items: flex-start;
  }

  .section {
    padding: 2.5rem 0;
  }
}
.hero-card__caption {
  margin-top: 0.8rem;
  font-size: 0.95rem;
  color: var(--muted);
  text-align: center;
}