:root {
  --bg: #ffffff;
  --text: #1f1f1f;
  --muted: #707070;
  --link: #1552b5;
  --rule: #e6e6e6;
  --active: #111111;
}
@media (prefers-color-scheme: dark) {
  :root {
    --bg: #141414;
    --text: #e4e4e4;
    --muted: #9a9a9a;
    --link: #7ea6ff;
    --rule: #2a2a2a;
    --active: #ffffff;
  }
}

* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: Georgia, Charter, "Times New Roman", serif;
  font-size: 15px;
  line-height: 1.5;
}

.layout {
  display: flex;
  align-items: flex-start;
  max-width: 60rem;
  margin: 0 auto;
}

/* Sidebar */
.sidebar {
  position: sticky;
  top: 0;
  align-self: flex-start;
  width: 15rem;
  flex: none;
  padding: 2.5rem 1.25rem 2rem;
  height: 100vh;
  overflow-y: auto;
}
.sidebar .name {
  font-size: 1.15rem;
  font-weight: 700;
  letter-spacing: -0.01em;
  margin: 0 0 0.15rem;
}
.sidebar .name a { color: var(--text); text-decoration: none; }
.sidebar .role {
  color: var(--muted);
  font-size: 0.8rem;
  margin: 0 0 1.4rem;
  line-height: 1.35;
}
.nav { list-style: none; margin: 0; padding: 0; }
.nav li { margin: 0 0 0.15rem; }
.nav .section-label {
  color: var(--muted);
  font-size: 0.7rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  margin: 1.1rem 0 0.4rem;
}
.nav a {
  color: var(--muted);
  text-decoration: none;
  font-size: 0.86rem;
  display: block;
  padding: 0.12rem 0;
}
.nav a:hover { color: var(--text); }
.nav a.active { color: var(--active); font-weight: 700; }
.sidebar .pdf-link {
  margin-top: 1.4rem;
  font-size: 0.8rem;
}
.sidebar .pdf-link a { color: var(--link); }

/* Content */
.content {
  flex: 1;
  min-width: 0;
  max-width: 34rem;
  padding: 2.5rem 1.5rem 4rem;
}
.content h1 {
  font-size: 1.4rem;
  font-weight: 700;
  letter-spacing: -0.01em;
  margin: 0 0 0.2rem;
}
.content .meta {
  color: var(--muted);
  font-style: italic;
  font-size: 0.85rem;
  margin: 0 0 1.3rem;
}
.content p { margin: 0 0 1rem; }
.content a { color: var(--link); }
.back {
  display: inline-block;
  font-size: 0.8rem;
  color: var(--muted);
  text-decoration: none;
  margin-bottom: 1.5rem;
}
.back:hover { color: var(--text); }

/* Gallery */
.gallery {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(140px, 1fr));
  gap: 0.5rem;
  margin: 1.5rem 0 0;
}
.gallery a {
  display: block;
  border: 1px solid var(--rule);
  border-radius: 4px;
  overflow: hidden;
  background: #fff;
  line-height: 0;
}
.gallery img {
  width: 100%;
  height: 130px;
  object-fit: contain;
  background: #fff;
  transition: transform 0.15s ease;
}
.gallery a:hover img { transform: scale(1.03); }

/* Mobile */
@media (max-width: 760px) {
  .layout { flex-direction: column; }
  .sidebar {
    position: static;
    width: 100%;
    height: auto;
    padding: 1.75rem 1.5rem 1rem;
    border-bottom: 1px solid var(--rule);
  }
  .nav { display: flex; flex-wrap: wrap; gap: 0.1rem 1rem; }
  .nav .section-label { width: 100%; margin: 0.6rem 0 0.2rem; }
  .content { padding: 1.75rem 1.5rem 3rem; max-width: 100%; }
}