:root {
  --primary: #0b2d4a;   /* navy */
  --secondary: #b00020; /* red accent */
  --bg: #f6f8fb;
  --text: #111827;
  --muted: #6b7280;
  --card: #ffffff;
  --border: #e5e7eb;
  --shadow: 0 10px 30px rgba(17, 24, 39, 0.08);
  --radius: 14px;
  --maxw: 1100px;
}

* { box-sizing: border-box; }
html, body { height: 100%; }

body {
  margin: 0;
  font-family: ui-sans-serif, system-ui, -apple-system, "Segoe UI", Roboto, Helvetica, Arial,
               "Apple Color Emoji", "Segoe UI Emoji";
  color: var(--text);
  background: var(--bg);
  line-height: 1.6;
}

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

a:focus-visible,
button:focus-visible,
summary:focus-visible {
  outline: 3px solid rgba(11, 45, 74, 0.25);
  outline-offset: 3px;
}

header {
  background: #ffffff;
  border-bottom: 1px solid var(--border);
}

.topbar {
  max-width: var(--maxw);
  margin: 0 auto;
  padding: 0.9rem 1.5rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
}

.brand {
  display: flex;
  flex-direction: column;
  gap: 0.1rem;
}

.brand-title {
  font-weight: 800;
  color: var(--primary);
  letter-spacing: -0.02em;
  margin: 0;
  font-size: 1.05rem;
}

.brand-subtitle {
  margin: 0;
  color: var(--muted);
  font-size: 0.92rem;
}

.nav {
  display: flex;
  gap: 0.9rem;
  align-items: center;
  flex-wrap: wrap;
  justify-content: flex-end;
}

.nav a {
  font-weight: 700;
  color: var(--primary);
  padding: 0.35rem 0.6rem;
  border-radius: 999px;
  border: 1px solid transparent;
}

.nav a[aria-current="page"] {
  border-color: rgba(11, 45, 74, 0.18);
  background: rgba(11, 45, 74, 0.04);
}

main {
  max-width: var(--maxw);
  margin: 0 auto;
}

.hero {
  padding: 3rem 1.5rem 2rem 1.5rem;
  display: grid;
  grid-template-columns: 1.2fr 0.8fr;
  gap: 2rem;
  align-items: start;
}

.hero h1 {
  font-size: clamp(2.0rem, 3.2vw, 2.6rem);
  line-height: 1.15;
  margin: 0 0 1.1rem 0;
  color: var(--primary);
  letter-spacing: -0.02em;
}

.hero-lead {
  margin: 0 0 1.2rem 0;
  font-size: 1.05rem;
  color: var(--muted);
  max-width: 70ch;
}

.card,
.hero-card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
}

.hero-card {
  padding: 1.25rem;
}

.hero-card ul {
  list-style: none;
  padding: 0;
  margin: 0;
}

.hero-card li {
  padding: 0.35rem 0;
  border-bottom: 1px dashed rgba(229, 231, 235, 0.9);
}

.hero-card li:last-child { border-bottom: none; }

.hero-card strong { color: var(--primary); }

.profile {
  display: grid;
  grid-template-columns: 170px 1fr;
  gap: 1.15rem;
  align-items: start;
}

.profile img {
  width: 170px;
  height: 170px;
  object-fit: cover;
  border-radius: 12px;
  border: 1px solid rgba(229, 231, 235, 0.9);
  background: #ffffff;
}

.profile p {
  margin: 0;
  color: #374151;
  max-width: 80ch;
}

.profile p a {
  color: var(--primary);
  font-weight: inherit;
  text-decoration: underline;
  text-decoration-thickness: 2px;
  text-underline-offset: 3px;
}

.profile p a:hover {
  text-decoration: underline;
  filter: brightness(0.95);
}

section {
  padding: 2.2rem 1.5rem;
}

section h2 {
  font-size: 1.65rem;
  margin: 0 0 0.85rem 0;
  color: var(--primary);
  letter-spacing: -0.01em;
}

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

.pub-year {
  margin: 1.5rem 0 0.8rem 0;
  color: var(--primary);
  font-size: 1.25rem;
  letter-spacing: -0.01em;
}

.pub-list {
  display: grid;
  gap: 1rem;
}

.pub-card {
  padding: 1.1rem 1.15rem;
}

.pub-title {
  margin: 0 0 0.5rem 0;
  color: var(--primary);
  font-weight: 900;
  letter-spacing: -0.01em;
  line-height: 1.25;
  font-size: 1.08rem;
}

.pub-top {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 1rem;
  flex-wrap: wrap;
  margin-bottom: 0.55rem;
}

.pub-where {
  color: var(--secondary);
  font-weight: 800;
  font-size: 0.98rem;
}

.badges {
  display: inline-flex;
  gap: 0.5rem;
  flex-wrap: wrap;
  justify-content: flex-end;
}

.badge {
  display: inline-flex;
  align-items: center;
  padding: 0.12rem 0.55rem;
  border-radius: 999px;
  border: 1px solid rgba(229, 231, 235, 0.95);
  background: rgba(11, 45, 74, 0.03);
  color: var(--primary);
  font-size: 0.85rem;
  font-weight: 800;
  white-space: nowrap;
}

.badge-muted {
  background: rgba(107, 114, 128, 0.06);
  color: #374151;
}

.pub-cite {
  margin: 0;
  color: #374151;
}

.pub-doi {
  margin: 0.25rem 0 0;
  color: var(--muted);
  font-size: 0.92rem;
}

.pub-links {
  margin-top: 0.65rem;
  display: flex;
  gap: 0.9rem;
  flex-wrap: wrap;
  font-size: 0.92rem;
}

.pub-links a {
  color: var(--primary);
  font-weight: 700;
}

.proj-list {
  display: grid;
  gap: 1rem;
}

.proj-card {
  padding: 1.1rem 1.15rem;
}

.proj-top {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 1rem;
  flex-wrap: wrap;
  margin-bottom: 0.55rem;
}

.proj-title {
  color: var(--secondary);
  font-weight: 800;
  font-size: 1.02rem;
  letter-spacing: -0.01em;
}

.proj-meta {
  margin: 0.25rem 0 0;
  color: #374151;
}

.proj-links {
  margin-top: 0.65rem;
  display: flex;
  gap: 0.9rem;
  flex-wrap: wrap;
  font-size: 0.92rem;
}

.proj-links a {
  color: var(--primary);
  font-weight: 700;
}

footer {
  background: #ffffff;
  border-top: 1px solid var(--border);
  margin-top: 2.5rem;
}

.footer-inner {
  max-width: var(--maxw);
  margin: 0 auto;
  padding: 1.75rem 1.5rem;
  font-size: 0.92rem;
  color: var(--muted);
}

.footer-inner p { margin: 0.35rem 0; }

@media (max-width: 900px) {
  .hero { grid-template-columns: 1fr; }
  .profile { grid-template-columns: 1fr; }
  .profile img { width: 150px; height: 150px; }
  .topbar { align-items: flex-start; }
}