:root {
  --ink: #1B2432;
  --paper: #F7F5F1;
  --brass: #9A7B4F;
  --slate: #5C6470;
  --white: #FFFFFF;
  --hairline: #DEDAD1;
  --serif: 'Source Serif 4', Georgia, serif;
  --sans: 'Inter', -apple-system, sans-serif;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }

body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: var(--sans);
  line-height: 1.6;
  font-size: 17px;
}

a { color: var(--brass); text-decoration: none; border-bottom: 1px solid transparent; }
a:hover, a:focus-visible { border-bottom-color: var(--brass); }
a:focus-visible { outline: 2px solid var(--brass); outline-offset: 2px; }

.layout {
  display: grid;
  grid-template-columns: 260px minmax(0, 680px);
  gap: 0 64px;
  max-width: 1040px;
  margin: 0 auto;
  padding: 72px 24px 120px;
}

/* Sidebar */
.sidebar { position: sticky; top: 72px; align-self: start; }

.name {
  font-family: var(--serif);
  font-size: 1.7rem;
  font-weight: 600;
  line-height: 1.25;
  margin: 0 0 4px;
}

.title { color: var(--slate); font-size: 0.95rem; margin: 0 0 28px; }

.portrait {
  width: 148px;
  height: 148px;
  border-radius: 4px;
  background: linear-gradient(135deg, #C9BBA0, #9A7B4F);
  margin-bottom: 24px;
}

nav ul { list-style: none; padding: 0; margin: 0 0 32px; border-top: 1px solid var(--hairline); }
nav li { border-bottom: 1px solid var(--hairline); }

nav a {
  display: block;
  padding: 11px 0;
  color: var(--ink);
  font-size: 0.95rem;
  border-bottom: none;
}
nav a:hover { color: var(--brass); }
nav a[aria-current="page"] { color: var(--brass); font-weight: 500; }

.sidebar-meta { font-size: 0.88rem; color: var(--slate); }
.sidebar-meta p { margin: 0 0 6px; }

/* Main content */
main section { margin-bottom: 64px; scroll-margin-top: 32px; }
main section:first-child { margin-top: 0; }

h2 {
  font-family: var(--serif);
  font-size: 1.5rem;
  font-weight: 600;
  margin: 0 0 20px;
  padding-bottom: 12px;
  border-bottom: 1px solid var(--hairline);
}

.bio p { margin: 0 0 16px; }
.bio p:last-child { margin-bottom: 0; }

.entry {
  display: grid;
  grid-template-columns: 88px 1fr;
  gap: 4px 20px;
  padding: 18px 0;
  border-bottom: 1px solid var(--hairline);
}
.entry:first-of-type { padding-top: 0; }
.entry:last-of-type { border-bottom: none; }

.entry-year { color: var(--slate); font-size: 0.9rem; font-variant-numeric: tabular-nums; padding-top: 2px; }
.entry-title { font-weight: 500; margin: 0 0 4px; }
.entry-detail { color: var(--slate); font-size: 0.92rem; margin: 0; }
.entry-detail a { font-size: 0.92rem; }

.teaching-item { padding: 16px 0; border-bottom: 1px solid var(--hairline); }
.teaching-item:last-child { border-bottom: none; }
.teaching-item h3 { font-family: var(--sans); font-size: 1.02rem; font-weight: 600; margin: 0 0 4px; }
.teaching-item p { color: var(--slate); font-size: 0.92rem; margin: 0; }

.contact-list { list-style: none; padding: 0; margin: 0; }
.contact-list li { padding: 10px 0; border-bottom: 1px solid var(--hairline); font-size: 0.95rem; }
.contact-list li:last-child { border-bottom: none; }
.contact-label { display: inline-block; width: 92px; color: var(--slate); }

footer {
  max-width: 1040px;
  margin: 0 auto;
  padding: 0 24px 48px;
  color: var(--slate);
  font-size: 0.85rem;
}

@media (max-width: 760px) {
  .layout { grid-template-columns: 1fr; padding: 40px 20px 80px; }
  .sidebar { position: static; margin-bottom: 40px; }
  .portrait { width: 96px; height: 96px; }
  nav ul { columns: 2; border-top: none; }
  nav li { border-bottom: none; }
  nav a { padding: 6px 0; }
  .entry { grid-template-columns: 64px 1fr; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
}