:root {
  --bg: #050608;
  --bg-elevated: #0b0d10;
  --panel: rgba(15, 18, 22, 0.96);
  --panel-strong: rgba(20, 24, 29, 0.99);
  --text: #f5f7fa;
  --muted: #c8cfd7;
  --line: rgba(255, 255, 255, 0.1);
  --line-strong: rgba(255, 255, 255, 0.16);
  --accent: #f2f4f7;
  --accent-soft: rgba(255, 255, 255, 0.05);
  --shadow: 0 22px 56px rgba(0, 0, 0, 0.38);
  --radius-xl: 28px;
  --radius-lg: 20px;
  --radius-md: 14px;
  --max: 1180px;
  --nav-height: 74px;
  --font-sans: "Avenir Next", "Segoe UI", "Helvetica Neue", Helvetica, Arial, sans-serif;
  --font-serif: "Iowan Old Style", "Palatino Linotype", "Book Antiqua", Georgia, serif;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  color-scheme: dark;
}

body {
  margin: 0;
  font-family: var(--font-sans);
  color: var(--text);
  background:
    radial-gradient(circle at 12% 12%, rgba(255, 255, 255, 0.03), transparent 24%),
    radial-gradient(circle at 82% 10%, rgba(255, 255, 255, 0.02), transparent 20%),
    linear-gradient(180deg, rgba(255, 255, 255, 0.015), transparent 32%),
    var(--bg);
  min-height: 100vh;
}

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

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

button,
input,
textarea,
select {
  font: inherit;
  appearance: none;
  -webkit-appearance: none;
  background: transparent;
  color: inherit;
}

.site-shell {
  width: min(calc(100% - 32px), var(--max));
  margin: 0 auto;
  padding-bottom: 64px;
}

.site-nav {
  position: sticky;
  top: 14px;
  z-index: 20;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  margin: 14px auto 22px;
  min-height: var(--nav-height);
  padding: 14px 18px;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: color-mix(in srgb, var(--panel-strong) 92%, transparent);
  backdrop-filter: blur(18px);
  box-shadow: var(--shadow);
}

.brand-lockup {
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.brand-title {
  font-family: var(--font-serif);
  font-size: 1.05rem;
  font-weight: 700;
  letter-spacing: 0.01em;
}

.brand-subtitle {
  font-size: 0.82rem;
  color: var(--muted);
}

.nav-links {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 10px;
}

.nav-link,
.lang-button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 42px;
  padding: 0 14px;
  border: 1px solid var(--line);
  border-radius: 999px;
  color: var(--muted);
  background: rgba(255, 255, 255, 0.02);
  transition: 180ms ease;
}

.nav-link.active,
.nav-link:hover,
.lang-button:hover {
  border-color: var(--line-strong);
  background: rgba(255, 255, 255, 0.06);
  color: var(--text);
}

.nav-tools {
  display: flex;
  align-items: center;
  gap: 10px;
}

.hero {
  display: grid;
  grid-template-columns: minmax(260px, 320px) minmax(0, 1fr);
  gap: 28px;
  align-items: stretch;
}

.panel {
  border: 1px solid var(--line);
  border-radius: var(--radius-xl);
  background: var(--panel);
  backdrop-filter: blur(10px);
  box-shadow: var(--shadow);
}

.panel-strong {
  background: var(--panel-strong);
}

.hero-photo-card,
.hero-copy,
.project-card,
.stat-card,
.detail-card,
.publication-card,
.travel-map-shell,
.travel-card,
.interest-card,
.life-preview-card {
  padding: 22px;
}

.hero-photo {
  aspect-ratio: 4 / 5;
  border-radius: calc(var(--radius-xl) - 8px);
  overflow: hidden;
  background: #111418;
}

.hero-photo img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.hero-badges,
.metric-row,
.hero-actions,
.link-row {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.hero-badges {
  margin-top: 14px;
}

.badge {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 10px 14px;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid rgba(255, 255, 255, 0.08);
  color: var(--text);
  font-size: 0.88rem;
  font-weight: 700;
}

.hero-copy {
  padding: 34px;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  text-align: center;
}

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 8px 12px;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.05);
  color: var(--text);
  font-size: 0.82rem;
  font-weight: 700;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

.hero-title {
  margin: 18px 0 12px;
  font-family: var(--font-serif);
  font-size: clamp(2.5rem, 5vw, 4.2rem);
  line-height: 0.96;
  letter-spacing: -0.03em;
}

.stat-value {
  font-size: 2.25rem;
  margin-top: 14px;
}

.hero-kicker,
.section-description,
.card-text,
.card-list,
.timeline-text,
.publication-meta,
.travel-card-meta,
.map-intro,
.travel-note {
  color: var(--muted);
  line-height: 1.72;
}

.hero-kicker {
  font-size: 1.08rem;
  max-width: 62ch;
  margin-left: auto;
  margin-right: auto;
}

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

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  min-height: 48px;
  padding: 0 18px;
  border-radius: 999px;
  border: 1px solid var(--line);
  background: rgba(255, 255, 255, 0.03);
  color: var(--text);
  font-weight: 700;
  transition: 180ms ease;
}

.button.primary {
  background: rgba(255, 255, 255, 0.08);
  border-color: var(--line-strong);
}

.button:hover,
.nav-link:hover,
.lang-button:hover {
  transform: translateY(-1px);
  box-shadow: var(--shadow);
}

.section {
  margin-top: 26px;
}

.section-header {
  display: flex;
  justify-content: space-between;
  align-items: end;
  gap: 16px;
  margin-bottom: 16px;
}

.section-title {
  margin: 0;
  font-family: var(--font-serif);
  font-size: clamp(1.7rem, 4vw, 2.4rem);
  letter-spacing: -0.02em;
}

.section-description {
  margin: 6px 0 0;
  max-width: 72ch;
}

.grid-3 {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 18px;
}

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

.project-card,
.home-project-card,
.life-preview-card {
  overflow: hidden;
}

.project-card img,
.home-project-card img,
.publication-card img {
  width: 100%;
  border-radius: 16px;
  margin-bottom: 16px;
  background: rgba(255, 255, 255, 0.04);
  object-fit: cover;
}

.project-card img {
  aspect-ratio: 16 / 10;
}

.home-project-card img {
  aspect-ratio: 16 / 11;
}

.home-project-copy {
  display: grid;
  gap: 10px;
}

.home-project-title {
  margin: 0;
  font-size: 1.05rem;
  line-height: 1.4;
}

.publication-card img {
  aspect-ratio: 16 / 11;
}

.card-tag {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 6px 10px;
  border-radius: 999px;
  border: 1px solid rgba(255, 255, 255, 0.08);
  background: var(--accent-soft);
  color: var(--accent);
  font-size: 0.78rem;
  font-weight: 800;
}

.card-title {
  margin: 14px 0 10px;
  font-size: 1.18rem;
  line-height: 1.3;
  color: var(--text);
}

.publication-title {
  margin-top: 12px;
  line-height: 1.16;
}

.project-title {
  color: var(--text);
}

.card-list {
  padding-left: 18px;
  margin: 0;
}

.metric-row {
  margin-top: 14px;
}

.metric-pill {
  padding: 8px 10px;
  border-radius: 12px;
  background: rgba(255, 255, 255, 0.05);
  font-size: 0.82rem;
  font-weight: 700;
  color: var(--text);
}

.timeline {
  display: grid;
  gap: 14px;
}

.timeline-item {
  display: grid;
  grid-template-columns: 138px minmax(0, 1fr);
  gap: 18px;
  padding: 18px 20px;
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  background: var(--panel);
}

.timeline-date {
  font-weight: 800;
  color: var(--text);
}

.publication-card {
  display: grid;
  gap: 20px;
  align-items: start;
}

.sidebar-publication-card {
  grid-template-columns: 1fr;
}

.publication-list-card {
  grid-template-columns: 240px minmax(0, 1fr);
}

.link-row {
  margin-top: 14px;
}

.text-link {
  color: #dfe4ea;
  font-weight: 700;
}

table {
  width: 100%;
  border-collapse: collapse;
}

th,
td {
  padding: 14px 16px;
  text-align: left;
  border-bottom: 1px solid var(--line);
  vertical-align: top;
}

th {
  font-size: 0.84rem;
  color: var(--muted);
  text-transform: uppercase;
  letter-spacing: 0.04em;
}

.split-layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(420px, 520px);
  gap: 24px;
  align-items: start;
}

.about-page {
  max-width: 860px;
  margin-left: auto;
  margin-right: auto;
}

.about-header {
  justify-content: center;
}

.about-header > div {
  text-align: center;
}

.about-stack {
  display: grid;
  gap: 24px;
  justify-items: center;
}

.about-card {
  width: min(100%, 760px);
}

.sticky-side {
  position: sticky;
  top: calc(var(--nav-height) + 34px);
  align-self: start;
  min-width: 0;
}

.life-preview-grid,
.interest-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 18px;
}

.travel-layout {
  display: grid;
  grid-template-columns: minmax(0, 1.2fr) minmax(300px, 0.8fr);
  gap: 24px;
  align-items: start;
}

.travel-map-shell {
  padding: 18px;
}

.map-copy {
  margin-bottom: 14px;
}

#travel-map {
  width: 100%;
  height: 520px;
  border-radius: 20px;
  overflow: hidden;
  border: 1px solid var(--line);
}

.travel-cards {
  display: grid;
  gap: 16px;
}

.travel-card-head {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  margin-bottom: 12px;
}

.travel-dot {
  width: 10px;
  height: 10px;
  border-radius: 999px;
  background: #d7dde5;
  margin-top: 8px;
  flex: 0 0 auto;
}

.travel-card-title,
.interest-card-title,
.interest-title {
  margin-top: 0;
}

.travel-card-meta {
  margin: 4px 0 0;
  font-size: 0.9rem;
}

.travel-note {
  margin-top: 14px;
  padding: 12px 14px;
  border: 1px dashed rgba(255, 255, 255, 0.14);
  border-radius: 14px;
  background: rgba(255, 255, 255, 0.02);
}

.travel-photo-frame {
  margin-top: 14px;
}

.travel-photo-frame img {
  width: 100%;
  aspect-ratio: 4 / 3;
  object-fit: cover;
  border-radius: 16px;
  margin: 0;
}

.interest-section {
  margin-top: 26px;
}

.interest-card {
  min-height: 100%;
}

.footer {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 16px;
  margin-top: 38px;
  padding: 18px 6px 8px;
  color: var(--muted);
  font-size: 0.92rem;
}

@media (max-width: 980px) {
  .hero,
  .grid-3,
  .grid-2,
  .split-layout,
  .publication-list-card,
  .travel-layout,
  .life-preview-grid,
  .interest-grid {
    grid-template-columns: 1fr;
  }

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

  .sticky-side {
    position: static;
  }
}

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

  .site-nav {
    position: static;
    border-radius: 28px;
    padding: 16px;
    align-items: flex-start;
  }

  .hero-photo-card,
  .hero-copy,
  .project-card,
  .stat-card,
  .detail-card,
  .publication-card,
  .travel-map-shell,
  .travel-card,
  .interest-card,
  .life-preview-card {
    padding: 18px;
  }

  .hero-title {
    font-size: 2.3rem;
  }

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