:root {
  --bg: #f6f5f2;
  --surface: #fff;
  --text: #1c1c1c;
  --text-muted: #5a5a5a;
  --accent: #2563a8;
  --accent-hover: #1d4d82;
  --border: #e2e0dc;
  --shadow: rgba(0,0,0,.06);
  --shadow-sm: rgba(0,0,0,.04);
  --radius: 6px;
  --transition: color .15s ease, background-color .15s ease, border-color .15s ease, opacity .15s ease;
  --hover-bg: rgba(0,0,0,.03);
  --text-shadow: 0 1px 2px rgba(0,0,0,.06);
  --text-shadow-strong: 0 2px 4px rgba(0,0,0,.08);
}
[data-theme="dark"] {
  --bg: #16171a;
  --surface: #1e1f23;
  --text: #eae8e4;
  --text-muted: #9a9a9a;
  --accent: #6ba3d4;
  --accent-hover: #8bb8e0;
  --border: #36373c;
  --shadow: rgba(0,0,0,.35);
  --shadow-sm: rgba(0,0,0,.2);
  --hover-bg: rgba(255,255,255,.04);
  --text-shadow: 0 1px 3px rgba(0,0,0,.3);
  --text-shadow-strong: 0 2px 6px rgba(0,0,0,.4);
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: 'Source Sans 3', 'Segoe UI', system-ui, -apple-system, sans-serif;
  font-size: 1rem;
  font-weight: 400;
  line-height: 1.65;
  letter-spacing: 0.01em;
  color: var(--text);
  background: var(--bg);
  min-height: 100vh;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  font-feature-settings: "kern" 1, "liga" 1;
  transition: var(--transition);
}
@media (max-width: 768px) {
  body { overflow-x: hidden; }
}
.container {
  max-width: 960px;
  margin: 0 auto;
  padding: clamp(1.5rem, 5vw, 3rem);
}
/* Header / Hero */
.hero {
  display: flex;
  flex-direction: row;
  flex-wrap: nowrap;
  align-items: center;
  gap: clamp(1.5rem, 4vw, 2.5rem);
  padding-bottom: 2.25rem;
  margin-bottom: 0.25rem;
  border-bottom: 1px solid var(--border);
}
.avatar {
  flex-shrink: 0;
  width: clamp(120px, 25vw, 160px);
  height: clamp(120px, 25vw, 160px);
  border-radius: 50%;
  object-fit: cover;
  border: 3px solid var(--border);
  box-shadow: var(--shadow-sm);
}
.hero-text {
  flex: 1;
  min-width: 0;
}
.hero-text h1 {
  font-family: 'Source Serif 4', Georgia, 'Times New Roman', serif;
  font-size: clamp(1.75rem, 4vw, 2.25rem);
  font-weight: 700;
  letter-spacing: -0.03em;
  margin: 0 0 .35em;
  color: var(--text);
  line-height: 1.2;
  text-shadow: var(--text-shadow-strong);
}
.affiliation {
  font-size: 0.95rem;
  color: var(--text-muted);
  margin-bottom: .75em;
  letter-spacing: .01em;
}
.intro {
  color: var(--text-muted);
  font-size: 0.95rem;
  font-weight: 400;
  line-height: 1.65;
  letter-spacing: 0.02em;
}
.intro a {
  color: var(--accent);
  text-decoration: none;
  transition: var(--transition);
}
.intro a:hover {
  color: var(--accent-hover);
  text-decoration: underline;
  text-underline-offset: 2px;
}
.links {
  margin-top: 1.1rem;
  display: flex;
  flex-wrap: wrap;
  gap: 1.25rem;
}
.links a {
  color: var(--accent);
  text-decoration: none;
  font-weight: 500;
  transition: var(--transition);
}
.links a:hover {
  color: var(--accent-hover);
  text-decoration: underline;
  text-underline-offset: 2px;
}
/* Theme toggle */
.theme-toggle {
  position: fixed;
  top: 1rem;
  right: 1rem;
  width: 2.5rem;
  height: 2.5rem;
  border-radius: 50%;
  border: 1px solid var(--border);
  background: var(--surface);
  color: var(--text);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 2px 12px var(--shadow);
  z-index: 10;
  transition: var(--transition);
}
.theme-toggle:hover {
  opacity: .92;
  box-shadow: 0 4px 16px var(--shadow);
}
.theme-toggle:active { opacity: .85; }
.theme-toggle svg { width: 1.25rem; height: 1.25rem; }
/* Sections */
section {
  padding-top: 1.5rem;
  padding-bottom: 0;
}
section h2 {
  font-family: 'Source Serif 4', Georgia, 'Times New Roman', serif;
  font-size: 1.35rem;
  font-weight: 600;
  letter-spacing: -0.02em;
  margin: 0 0 1.35rem;
  text-shadow: var(--text-shadow);
  color: var(--text);
  padding-bottom: .5rem;
  border-bottom: 1px solid var(--border);
}
.pub-intro {
  color: var(--text-muted);
  font-size: 0.95rem;
  margin-bottom: 1rem;
}
.pub-intro a {
  color: var(--accent);
  text-decoration: none;
  transition: var(--transition);
}
.pub-intro a:hover { text-decoration: underline; text-underline-offset: 2px; }
.pub-item {
  display: flex;
  align-items: center;
  gap: 1rem;
  margin-bottom: .25rem;
  line-height: 1.5;
  padding: .08rem 0;
  border-radius: var(--radius);
  transition: var(--transition);
}
.pub-venue-col {
  flex-shrink: 0;
  width: 7.2rem;
  min-width: 7.2rem;
  display: flex;
  align-items: center;
  justify-content: flex-end;
}
/* Publication Button */
.pub-btn {
  display: flex;
  align-items: stretch;
  width: 7.2rem;
  height: 2.65rem;
  min-height: 2.65rem;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
  transition: border-color .2s ease, box-shadow .2s ease;
}
.pub-btn:hover {
  border-color: var(--accent);
  box-shadow: 0 2px 8px var(--shadow);
}
.pub-btn-pdf,
.pub-btn-doi {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: .12rem;
  padding: .22rem .2rem;
  text-decoration: none;
  color: inherit;
  transition: background-color .25s ease, color .25s ease, transform .25s cubic-bezier(0.34, 1.56, 0.64, 1), box-shadow .25s ease;
}
.pub-btn-pdf {
  width: 1.9rem;
  flex-shrink: 0;
  background: rgba(192, 57, 43, 0.08);
  color: #c0392b;
  box-shadow: 0 0 0 transparent;
}
.pub-btn-pdf:hover {
  background: rgba(192, 57, 43, 0.28);
  color: #c0392b;
  transform: translateY(-3px) scale(1.06);
  box-shadow: 0 6px 16px rgba(192, 57, 43, 0.4), 0 0 20px rgba(192, 57, 43, 0.15);
}
.pub-btn-doi {
  width: 1.9rem;
  flex-shrink: 0;
  background: rgba(0, 0, 0, 0.03);
  color: var(--text-muted);
  border-left: 1px solid var(--border);
  box-shadow: 0 0 0 transparent;
}
[data-theme="dark"] .pub-btn-doi {
  background: rgba(255, 255, 255, 0.04);
}
.pub-btn-doi:hover {
  background: rgba(37, 99, 168, 0.18);
  color: var(--accent-hover);
  transform: translateY(-3px) scale(1.06);
  box-shadow: 0 6px 16px rgba(37, 99, 168, 0.35), 0 0 20px rgba(37, 99, 168, 0.12);
}
[data-theme="dark"] .pub-btn-doi:hover {
  background: rgba(107, 163, 212, 0.2);
  box-shadow: 0 6px 16px rgba(107, 163, 212, 0.4), 0 0 20px rgba(107, 163, 212, 0.15);
}
.pub-btn-pdf:active,
.pub-btn-doi:active {
  transform: translateY(0) scale(0.97);
  box-shadow: 0 2px 6px var(--shadow-sm);
}
.pub-btn-pdf--empty,
.pub-btn-doi--empty {
  cursor: default;
  pointer-events: none;
  opacity: 0.45;
  background: var(--hover-bg) !important;
  color: var(--text-muted) !important;
  box-shadow: none !important;
}
.pub-btn-pdf--empty .pub-btn-icon-svg,
.pub-btn-pdf--empty .pub-btn-label,
.pub-btn-doi--empty .pub-btn-icon-svg,
.pub-btn-doi--empty .pub-btn-label {
  color: var(--text-muted) !important;
}
.pub-btn-pdf--empty:hover,
.pub-btn-doi--empty:hover {
  transform: none;
  box-shadow: none;
}
.pub-btn-icon-svg {
  width: 0.95rem;
  height: 0.95rem;
}
.pub-btn-label {
  font-size: 0.48rem;
  font-weight: 700;
  letter-spacing: .02em;
  line-height: 1;
}
.pub-btn-info {
  flex: 1;
  min-width: 0;
  max-width: 3.2rem;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  padding: .22rem .28rem;
  gap: 0;
  text-align: center;
  border-left: 1px solid var(--border);
}
.pub-btn-info--no-track {
  flex-direction: row;
  flex-wrap: wrap;
  justify-content: center;
  align-items: center;
  text-align: center;
  gap: 0.2rem 0.35rem;
}
.pub-btn-venue {
  font-size: 0.68rem;
  font-weight: 600;
  color: var(--text);
  letter-spacing: .02em;
  line-height: 1.25;
}
.pub-btn-year {
  font-size: 0.68rem;
  font-weight: 600;
  color: var(--text-muted);
  letter-spacing: .02em;
  line-height: 1.25;
}
.pub-btn-track {
  font-size: 0.52rem;
  font-weight: 500;
  color: var(--text-muted);
  letter-spacing: .02em;
  line-height: 1.25;
  min-height: 1.25em;
  opacity: .9;
}
.pub-body {
  flex: 1;
  min-width: 0;
  text-align: left;
  display: flex;
  flex-direction: column;
  gap: 0.12em;
  overflow: hidden;
}
.pub-item .title {
  font-weight: 600;
  font-size: 0.95rem;
  letter-spacing: 0.01em;
  color: var(--text);
  line-height: 1.4;
  text-shadow: var(--text-shadow);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
.pub-item .authors {
  font-size: 0.82rem;
  font-weight: 400;
  letter-spacing: 0.02em;
  color: var(--text-muted);
  line-height: 1.45;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
.pub-item .authors .author-self {
  font-weight: 700;
  color: var(--text);
}
.pub-item .venue-link {
  font-size: 0.8rem;
  margin-top: .15em;
}
.pub-item a {
  color: var(--accent);
  text-decoration: none;
  transition: var(--transition);
}
.pub-item .pub-btn-pdf,
.pub-item .pub-btn-pdf .pub-btn-icon-svg,
.pub-item .pub-btn-pdf .pub-btn-label {
  color: #c0392b;
}
.pub-item .pub-btn-pdf:hover,
.pub-item .pub-btn-pdf:hover .pub-btn-icon-svg,
.pub-item .pub-btn-pdf:hover .pub-btn-label {
  color: #a93226;
}
.pub-item a:hover { text-decoration: underline; text-underline-offset: 2px; }
.pub-item .pub-btn-pdf:hover { text-decoration: none; }
/* Professional service */
.service-columns {
  display: grid;
  grid-template-columns: 2fr 3fr;
  gap: 2rem;
  align-items: start;
}
.service-col-title {
  font-family: 'Source Serif 4', Georgia, 'Times New Roman', serif;
  font-size: 1.1rem;
  font-weight: 600;
  color: var(--text);
  margin: 0 0 0.6rem;
  letter-spacing: -0.01em;
}
.service-items {
  list-style: disc;
  padding-left: 1.35rem;
  margin: 0;
}
.service-items li {
  color: var(--text-muted);
  font-size: 0.95rem;
  line-height: 1.6;
  letter-spacing: 0.02em;
  margin-bottom: 0.15rem;
}
.service-items li:last-child {
  margin-bottom: 0;
}
.service-list {
  list-style: none;
  padding: 0;
  margin: 0;
}
.service-list li {
  padding: .7rem 0;
  border-bottom: 1px solid var(--border);
  display: flex;
  flex-wrap: wrap;
  gap: .5rem 1rem;
  align-items: baseline;
  transition: var(--transition);
  border-radius: var(--radius);
}
.service-list li:hover {
  background: var(--hover-bg);
  margin: 0 -0.5rem;
  padding-left: .5rem;
  padding-right: .5rem;
}
.service-list li:last-child { border-bottom: none; }
.service-role { font-weight: 600; color: var(--text); }
.service-venue { color: var(--text-muted); font-size: 0.95rem; }
.service-year { color: var(--accent); font-size: 0.9rem; font-weight: 500; }
.service-note {
  color: var(--text-muted);
  font-size: 0.9rem;
  margin-top: 1rem;
}
.service-description {
  color: var(--text-muted);
  font-size: 0.95rem;
  line-height: 1.65;
  letter-spacing: 0.02em;
  margin: 0 0 1rem;
}
.service-description:last-child {
  margin-bottom: 0;
}
footer {
  padding: 0;
  font-size: 0.85rem;
  font-weight: 400;
  letter-spacing: 0.02em;
  color: var(--text-muted);
  text-shadow: var(--text-shadow);
  text-align: center;
  border-top: 1px solid var(--border);
  margin-top: 0.5rem;
}
footer a {
  color: var(--accent);
  text-decoration: none;
  transition: var(--transition);
}
footer a:hover {
  color: var(--accent-hover);
  text-decoration: underline;
  text-underline-offset: 2px;
}

/* Mobile layout */
@media (max-width: 768px) {
  .container {
    padding: 1.25rem max(1rem, env(safe-area-inset-right)) 2rem max(1rem, env(safe-area-inset-left));
  }
  .hero {
    flex-direction: column;
    align-items: center;
    gap: 1.25rem;
    padding-bottom: 1.5rem;
    margin-bottom: 0;
  }
  .avatar {
    width: 88px;
    height: 88px;
  }
  .hero-text {
    text-align: center;
    width: 100%;
  }
  .hero-text h1 {
    font-size: 1.5rem;
    letter-spacing: -0.02em;
  }
  .intro {
    font-size: 0.9rem;
    line-height: 1.6;
  }
  .links {
    justify-content: center;
    gap: 1rem;
    margin-top: 1rem;
  }
  .links a {
    min-height: 44px;
    padding: 0.4rem 0.6rem;
    display: inline-flex;
    align-items: center;
    justify-content: center;
  }
  .theme-toggle {
    top: max(0.75rem, env(safe-area-inset-top));
    right: max(0.75rem, env(safe-area-inset-right));
    width: 2.5rem;
    height: 2.5rem;
    min-width: 44px;
    min-height: 44px;
  }
  .theme-toggle svg {
    width: 1.15rem;
    height: 1.15rem;
  }
  section {
    padding-top: 1.5rem;
    padding-bottom: 0;
  }
  section h2 {
    font-size: 1.2rem;
    margin-bottom: 1rem;
    padding-bottom: 0.5rem;
  }
  .service-columns {
    grid-template-columns: 1fr;
    gap: 1.75rem;
  }
  .service-col-title {
    font-size: 1.05rem;
    margin-bottom: 0.5rem;
  }
  .service-items li {
    font-size: 0.9rem;
    margin-bottom: 0.2rem;
  }
  .pub-item {
    flex-direction: row;
    align-items: center;
    gap: 0.65rem;
    margin-bottom: 0.6rem;
    padding-bottom: 0.6rem;
    border-bottom: 1px solid var(--border);
  }
  .pub-item:last-child {
    border-bottom: none;
  }
  .pub-venue-col {
    flex-shrink: 0;
    width: 6.8rem;
    min-width: 6.8rem;
    justify-content: flex-end;
  }
  .pub-btn {
    width: 6.8rem;
    height: 2.8rem;
    min-height: 2.8rem;
  }
  .pub-body {
    flex: 1;
    min-width: 0;
    padding-left: 0;
    overflow: visible;
  }
  .pub-item .title {
    font-size: 0.9rem;
    line-height: 1.4;
    white-space: normal;
    overflow: visible;
    text-overflow: clip;
    word-break: break-word;
  }
  .pub-item .authors {
    font-size: 0.8rem;
    line-height: 1.45;
    white-space: normal;
    overflow: visible;
    text-overflow: clip;
  }
  .service-list li {
    flex-direction: column;
    align-items: flex-start;
    gap: 0.25rem;
    padding: 0.75rem 0;
  }
  footer {
    padding: 0;
    font-size: 0.85rem;
    text-align: center;
  }
}

@media (max-width: 380px) {
  .container {
    padding-left: 0.75rem;
    padding-right: 0.75rem;
  }
  .hero-text h1 {
    font-size: 1.35rem;
  }
  .avatar {
    width: 80px;
    height: 80px;
  }
  .pub-venue-col {
    width: 6.2rem;
    min-width: 6.2rem;
  }
  .pub-btn {
    width: 6.2rem;
    height: 2.75rem;
    min-height: 2.75rem;
  }
  .pub-item .title {
    font-size: 0.85rem;
  }
  .pub-item .authors {
    font-size: 0.78rem;
  }
  .pub-btn-venue {
    font-size: 0.6rem;
  }
  .pub-btn-year {
    font-size: 0.56rem;
  }
  .pub-btn-track {
    font-size: 0.48rem;
  }
  .service-col-title {
    font-size: 1rem;
  }
  .service-items li {
    font-size: 0.85rem;
  }
}