:root {
  --bg: #ffffff;
  --fg: #1a1a1a;
  --muted: #6b6b6b;
  --accent: #2454ff;
  --border: #e6e6e6;
  --card: #f7f7f8;
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #14161a;
    --fg: #eaeaea;
    --muted: #9a9a9a;
    --accent: #7fa2ff;
    --border: #2a2d33;
    --card: #1c1f24;
  }
}

* { box-sizing: border-box; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--fg);
  font-family: -apple-system, "Segoe UI", "Apple SD Gothic Neo", "Malgun Gothic", Roboto, Helvetica, Arial, sans-serif;
  line-height: 1.6;
}

.wrap {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
}

a { color: var(--accent); text-decoration: none; }
a:hover { text-decoration: underline; }

.site-header {
  border-bottom: 1px solid var(--border);
}
.site-header .wrap {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-top: 18px;
  padding-bottom: 18px;
}
.site-header .brand {
  font-weight: 700;
  font-size: 1.1rem;
  color: var(--fg);
}
.site-header nav a {
  margin-left: 20px;
  color: var(--fg);
  font-size: 0.95rem;
}

main.wrap { padding-top: 40px; padding-bottom: 60px; min-height: 60vh; }
main.wrap li, main.wrap p { text-wrap: pretty; }

h1 { font-size: 1.9rem; margin-bottom: 0.3em; }
h2 { font-size: 1.3rem; margin-top: 2.2em; border-bottom: 1px solid var(--border); padding-bottom: 0.3em; }

.profile {
  display: flex;
  gap: 28px;
  align-items: center;
  margin-bottom: 20px;
}
.profile img {
  width: 140px;
  height: 140px;
  border-radius: 50%;
  object-fit: cover;
  border: 1px solid var(--border);
}
.tagline { color: var(--muted); }

.jump-nav {
  display: flex;
  gap: 10px;
  margin: -0.6em 0 1.6em;
}
.jump-nav a {
  display: inline-block;
  padding: 6px 16px;
  border: 1px solid var(--border);
  border-radius: 999px;
  background: var(--card);
  color: var(--fg);
  font-size: 0.9rem;
  font-weight: 600;
}
.jump-nav a:hover {
  border-color: var(--accent);
  color: var(--accent);
  text-decoration: none;
}

.year-group { margin-top: 1.6em; }
.year-group h3 { color: var(--muted); font-weight: 600; font-size: 1rem; margin-bottom: 0.6em; }

.pub-card, .award-card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 14px 18px;
  margin-bottom: 12px;
}
.pub-card.has-image {
  display: flex;
  gap: 20px;
  align-items: flex-start;
}
.pub-card .pub-figure {
  width: 200px;
  height: 130px;
  object-fit: contain;
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: 6px;
  padding: 6px;
  flex: none;
}

@media (max-width: 640px) {
  .pub-card.has-image { flex-direction: column; }
  .pub-card .pub-figure { width: 100%; height: auto; max-height: 180px; }
}
.pub-card .pub-body { min-width: 0; }
.pub-card .pub-title { font-weight: 600; }
.pub-card .pub-meta { color: var(--muted); font-size: 0.9rem; margin-top: 4px; }
.pub-card .pub-links { margin-top: 6px; font-size: 0.9rem; }

.site-footer {
  border-top: 1px solid var(--border);
  color: var(--muted);
  font-size: 0.85rem;
}
.site-footer .wrap {
  display: flex;
  justify-content: space-between;
  padding: 18px 24px;
}
.site-footer .links a { margin-left: 14px; }