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

:root {
  --sand: #F5F1EA;
  --sand-dark: #EBE5D9;
  --charcoal: #2C2925;
  --charcoal-mid: #5C5650;
  --charcoal-light: #8C877F;
  --terra: #B86B3E;
  --terra-light: #F0E0D0;
  --white: #FDFCFA;
}

html { scroll-behavior: smooth; }

body {
  font-family: 'Inter', sans-serif;
  background: var(--sand);
  color: var(--charcoal);
  font-size: 16px;
  line-height: 1.7;
  min-height: 100vh;
}

/* ── Layout ── */
.site-wrapper {
  display: grid;
  grid-template-columns: 220px 1fr;
  min-height: 100vh;
  max-width: 960px;
  margin: 0 auto;
}

/* ── Sidebar ── */
aside {
  position: sticky;
  top: 0;
  height: 100vh;
  padding: 3rem 2rem 3rem 0;
  display: flex;
  flex-direction: column;
  border-right: 1px solid var(--sand-dark);
}

.name-block { margin-bottom: 2.5rem; }

.name-block .first {
  font-family: 'Lora', serif;
  font-size: 1.25rem;
  font-weight: 400;
  color: var(--charcoal);
  display: block;
}

.name-block .last {
  font-family: 'Lora', serif;
  font-size: 1.5rem;
  font-weight: 600;
  color: var(--charcoal);
  display: block;
  line-height: 1.2;
}

.name-block .role {
  margin-top: 0.5rem;
  font-size: 0.78rem;
  color: var(--charcoal-light);
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

nav ul { list-style: none; }
nav ul li { margin-bottom: 0.1rem; }

nav ul li a {
  text-decoration: none;
  font-size: 0.9rem;
  font-weight: 400;
  color: var(--charcoal-mid);
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 0.5rem 0.75rem;
  border-radius: 6px;
  transition: background 0.15s, color 0.15s;
}

nav ul li a:hover,
nav ul li a.active {
  background: var(--terra-light);
  color: var(--terra);
}

.nav-dot {
  width: 5px;
  height: 5px;
  border-radius: 50%;
  background: var(--terra);
  opacity: 0;
  transition: opacity 0.15s;
  flex-shrink: 0;
}

nav ul li a.active .nav-dot,
nav ul li a:hover .nav-dot { opacity: 1; }

.sidebar-links {
  margin-top: auto;
  font-size: 0.8rem;
  color: var(--charcoal-light);
  line-height: 2;
}

.sidebar-links a {
  color: var(--terra);
  text-decoration: none;
  display: block;
}

.sidebar-links a:hover { text-decoration: underline; }

.sidebar-links .affil {
  color: var(--charcoal-light);
  margin-bottom: 0.75rem;
  line-height: 1.6;
}

/* ── Main ── */
main { padding: 3rem 0 4rem 3rem; }

/* ── Hero ── */
.hero {
  padding-bottom: 3.5rem;
  margin-bottom: 3.5rem;
  border-bottom: 1px solid var(--sand-dark);
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 2rem;
  align-items: start;
}

.accent-rule {
  width: 40px;
  height: 3px;
  background: var(--terra);
  border-radius: 2px;
  margin-bottom: 1.25rem;
}

.hero-text h1 {
  font-family: 'Lora', serif;
  font-size: 2.5rem;
  font-weight: 600;
  line-height: 1.15;
  color: var(--charcoal);
  margin-bottom: 0.5rem;
}

.hero-text .subtitle {
  font-size: 1rem;
  color: var(--charcoal-mid);
  margin-bottom: 1.5rem;
}

.hero-text p {
  font-size: 1rem;
  color: var(--charcoal-mid);
  max-width: 480px;
  line-height: 1.75;
  margin-bottom: 0.75rem;
}

.photo-wrap {
  width: 200px;
  height: 260px;
  border-radius: 8px;
  overflow: hidden;
  border: 1px solid var(--sand-dark);
  flex-shrink: 0;
  background: var(--sand-dark);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--charcoal-light);
  font-size: 0.75rem;
  text-align: center;
  flex-direction: column;
  gap: 8px;
}

.photo-wrap img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: top;
  display: block;
}

/* ── Sections ── */
section {
  margin-bottom: 3.5rem;
  scroll-margin-top: 2rem;
}

.section-label {
  font-size: 0.72rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--terra);
  font-weight: 500;
  margin-bottom: 1rem;
}

section h2 {
  font-family: 'Lora', serif;
  font-size: 1.5rem;
  font-weight: 600;
  color: var(--charcoal);
  margin-bottom: 1rem;
}

section > p {
  color: var(--charcoal-mid);
  margin-bottom: 1.25rem;
  max-width: 560px;
}

section > p a { color: var(--terra); text-decoration: none; }
section > p a:hover { text-decoration: underline; }

.divider {
  border: none;
  border-top: 1px solid var(--sand-dark);
  margin: 0 0 3.5rem;
}

/* ── Papers ── */
.paper-list { display: flex; flex-direction: column; gap: 1rem; }

.paper {
  background: var(--white);
  border: 1px solid var(--sand-dark);
  border-radius: 8px;
  padding: 1.1rem 1.25rem;
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 1rem;
  align-items: start;
  transition: border-color 0.15s;
}

.paper:hover { border-color: var(--terra); }

.paper h3 {
  font-family: 'Lora', serif;
  font-size: 0.95rem;
  font-weight: 600;
  color: var(--charcoal);
  margin-bottom: 0.3rem;
  line-height: 1.45;
}

.paper .authors {
  font-size: 0.82rem;
  color: var(--charcoal-light);
  margin-bottom: 0.2rem;
}

.paper .authors strong {
  color: var(--charcoal-mid);
  font-weight: 500;
}

.paper .venue {
  font-size: 0.82rem;
  color: var(--charcoal-light);
  font-style: italic;
}

.paper .paper-links {
  margin-top: 0.5rem;
  display: flex;
  gap: 0.75rem;
}

.paper .paper-links a {
  font-size: 0.78rem;
  color: var(--terra);
  text-decoration: none;
  font-weight: 500;
}

.paper .paper-links a:hover { text-decoration: underline; }

.year-badge {
  font-size: 0.75rem;
  font-weight: 500;
  color: var(--terra);
  background: var(--terra-light);
  padding: 3px 9px;
  border-radius: 20px;
  white-space: nowrap;
  flex-shrink: 0;
}

/* ── Teaching ── */
.course-list { display: flex; flex-direction: column; }

.course {
  display: flex;
  align-items: baseline;
  gap: 1rem;
  padding: 0.8rem 0;
  border-bottom: 1px solid var(--sand-dark);
}

.course:last-child { border-bottom: none; }

.course-code {
  font-size: 0.8rem;
  font-weight: 500;
  letter-spacing: 0.04em;
  color: var(--terra);
  min-width: 80px;
  flex-shrink: 0;
}

.course-name { font-size: 0.95rem; color: var(--charcoal); }

.course-term {
  margin-left: auto;
  font-size: 0.8rem;
  color: var(--charcoal-light);
  flex-shrink: 0;
}

.course-desc {
  font-size: 0.82rem;
  color: var(--charcoal-light);
  display: block;
  margin-top: 0.15rem;
}

/* ── Contact ── */
.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1rem;
  max-width: 480px;
  margin-bottom: 1.5rem;
}

.contact-item {
  background: var(--white);
  border: 1px solid var(--sand-dark);
  border-radius: 8px;
  padding: 1rem 1.1rem;
}

.contact-item .label {
  font-size: 0.72rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--charcoal-light);
  margin-bottom: 0.3rem;
}

.contact-item .value { font-size: 0.9rem; color: var(--charcoal); }

.contact-item .value a {
  color: var(--terra);
  text-decoration: none;
}

.contact-item .value a:hover { text-decoration: underline; }

/* ── Buttons ── */
.btn {
  display: inline-block;
  margin-top: 1rem;
  font-size: 0.85rem;
  font-weight: 500;
  color: var(--terra);
  border: 1px solid var(--terra);
  padding: 0.5rem 1.1rem;
  border-radius: 6px;
  text-decoration: none;
  transition: background 0.15s, color 0.15s;
}

.btn:hover { background: var(--terra); color: white; }

/* ── Responsive ── */
@media (max-width: 700px) {
  .site-wrapper { grid-template-columns: 1fr; }

  aside {
    position: static;
    height: auto;
    padding: 1.75rem 1.5rem 1.25rem;
    border-right: none;
    border-bottom: 1px solid var(--sand-dark);
    flex-direction: row;
    flex-wrap: wrap;
    align-items: center;
    gap: 1rem;
  }

  .name-block { margin-bottom: 0; }
  .name-block .role { display: none; }

  nav ul { display: flex; gap: 0.25rem; flex-wrap: wrap; }
  .sidebar-links { display: none; }

  main { padding: 2rem 1.5rem 3rem; }

  .hero {
    grid-template-columns: 1fr;
    padding-bottom: 2.5rem;
    margin-bottom: 2.5rem;
  }

  .photo-wrap { display: none; }

  .hero-text h1 { font-size: 2rem; }

  .contact-grid { grid-template-columns: 1fr; max-width: 100%; }
}