/* ===========================================================
   Amreeta Chatterjee — personal academic site
   =========================================================== */

:root {
  --text: #1f2328;
  --text-soft: #57606a;
  --muted: #8b949e;
  --accent: #8a3324;       /* warm academic maroon */
  --accent-soft: #b35a4a;
  --bg: #ffffff;
  --bg-soft: #fafafa;
  --rule: #e5e7eb;
  --max-width: 1080px;
  --sidebar-width: 260px;
  --font-sans: -apple-system, BlinkMacSystemFont, "Segoe UI", "Helvetica Neue",
               Helvetica, Arial, "Liberation Sans", sans-serif;
  --font-serif: "Source Serif Pro", "Charter", "Iowan Old Style", "Georgia", serif;
}

* { box-sizing: border-box; }

html { -webkit-text-size-adjust: 100%; }

body {
  margin: 0;
  color: var(--text);
  background: var(--bg);
  font-family: var(--font-sans);
  font-size: 16px;
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

a {
  color: var(--accent);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: border-color 0.15s ease, color 0.15s ease;
}
a:hover { border-bottom-color: var(--accent); }

h1, h2, h3, h4 {
  font-family: var(--font-serif);
  font-weight: 600;
  color: var(--text);
  line-height: 1.25;
  margin: 0 0 0.6em;
}

h1 { font-size: 1.9rem; }
h2 { font-size: 1.35rem; margin-top: 2em; }
h3 { font-size: 1.1rem; }

p { margin: 0 0 1em; }

hr {
  border: none;
  border-top: 1px solid var(--rule);
  margin: 2.5em 0;
}

/* ---------- Layout ---------- */

.page {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 3rem 1.5rem 4rem;
  display: grid;
  grid-template-columns: var(--sidebar-width) 1fr;
  gap: 3rem;
}

@media (max-width: 800px) {
  .page {
    grid-template-columns: 1fr;
    gap: 2rem;
    padding: 2rem 1.25rem 3rem;
  }
}

/* ---------- Sidebar ---------- */

.sidebar {
  position: sticky;
  top: 3rem;
  align-self: start;
}

@media (max-width: 800px) {
  .sidebar { position: static; }
}

.profile-photo {
  width: 180px;
  height: 180px;
  border-radius: 50%;
  object-fit: cover;
  background: var(--bg-soft);
  border: 1px solid var(--rule);
  display: block;
  margin-bottom: 1rem;
}

.sidebar .name {
  font-family: var(--font-serif);
  font-size: 1.35rem;
  font-weight: 600;
  margin: 0 0 0.1em;
  line-height: 1.25;
}

.sidebar .pronouns {
  font-size: 0.82rem;
  color: var(--muted);
  margin: 0 0 0.5em;
  font-style: italic;
}

.sidebar .role {
  font-size: 0.95rem;
  color: var(--text-soft);
  margin: 0 0 0.2em;
}

.sidebar .affiliation {
  font-size: 0.9rem;
  color: var(--muted);
  margin: 0 0 1.2em;
}

.sidebar .contact {
  font-size: 0.88rem;
  color: var(--text-soft);
  margin: 0 0 1.2em;
  word-break: break-word;
}

.sidebar nav {
  border-top: 1px solid var(--rule);
  padding-top: 1rem;
  margin-top: 0.5rem;
}

.sidebar nav a {
  display: block;
  color: var(--text);
  font-size: 0.95rem;
  padding: 0.25rem 0;
  border-bottom: none;
}
.sidebar nav a:hover { color: var(--accent); }
.sidebar nav a.active { color: var(--accent); font-weight: 600; }

.social {
  margin-top: 1.5rem;
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
}

.social a {
  color: var(--text-soft);
  font-size: 0.88rem;
  border: none;
}
.social a:hover { color: var(--accent); }

/* ---------- Main content ---------- */

.content {
  min-width: 0;
}

.content h1 + .subtitle {
  color: var(--text-soft);
  font-size: 1.05rem;
  margin-top: -0.4em;
  margin-bottom: 1.5em;
}

.content p { font-size: 1rem; }

.content strong { color: var(--text); }

/* Lead paragraph on home */
.lead {
  font-size: 1.08rem;
  line-height: 1.7;
  color: var(--text);
}

/* News list */
.news-list {
  list-style: none;
  padding: 0;
  margin: 0;
  border-top: 1px solid var(--rule);
}

.news-list li {
  display: grid;
  grid-template-columns: 110px 1fr;
  gap: 1rem;
  padding: 0.85rem 0;
  border-bottom: 1px solid var(--rule);
  font-size: 0.95rem;
}

.news-list .date {
  color: var(--muted);
  font-variant-numeric: tabular-nums;
  font-size: 0.88rem;
  padding-top: 0.05rem;
}

@media (max-width: 520px) {
  .news-list li { grid-template-columns: 1fr; gap: 0.15rem; }
}

/* Publication entries */
.pubs {
  list-style: none;
  padding: 0;
  margin: 0;
}

.pub {
  display: grid;
  grid-template-columns: 110px 1fr;
  gap: 1.25rem;
  padding: 1.1rem 0;
  border-bottom: 1px solid var(--rule);
}

.pub .venue-tag {
  font-size: 0.8rem;
  font-weight: 600;
  letter-spacing: 0.03em;
  color: var(--accent);
  text-transform: uppercase;
  padding-top: 0.3rem;
  font-variant-numeric: tabular-nums;
}

.pub .title {
  font-family: var(--font-serif);
  font-size: 1.05rem;
  font-weight: 600;
  line-height: 1.35;
  margin: 0 0 0.35em;
  color: var(--text);
}
.pub .title a { color: var(--text); border-bottom: none; }
.pub .title a:hover { color: var(--accent); }

.pub .authors {
  font-size: 0.93rem;
  color: var(--text-soft);
  margin: 0 0 0.3em;
}
.pub .authors .me { color: var(--text); font-weight: 600; }

.pub .venue {
  font-size: 0.9rem;
  color: var(--muted);
  font-style: italic;
  margin: 0 0 0.5em;
}

.pub .links {
  font-size: 0.85rem;
  color: var(--text-soft);
  display: flex;
  gap: 1rem;
  flex-wrap: wrap;
}

.pub .links a { border-bottom: 1px dotted var(--accent); }
.pub .links a:hover { border-bottom-style: solid; }

.pub-award {
  display: inline-block;
  margin-left: 0.5rem;
  padding: 0.1rem 0.45rem;
  font-size: 0.72rem;
  font-weight: 600;
  letter-spacing: 0.05em;
  color: #7a5b00;
  background: #fff4d1;
  border-radius: 3px;
  text-transform: uppercase;
  vertical-align: 0.15em;
}

@media (max-width: 600px) {
  .pub { grid-template-columns: 1fr; gap: 0.4rem; }
  .pub .venue-tag { padding-top: 0; }
}

/* Year headings in publications */
.year-heading {
  font-family: var(--font-serif);
  font-size: 1.55rem;
  font-weight: 600;
  color: var(--text);
  margin: 2.4rem 0 0.6rem;
  padding-bottom: 0.25rem;
  border-bottom: 2px solid var(--text);
}
.year-heading:first-of-type { margin-top: 1rem; }

/* Teaching cards */
.teach {
  border: 1px solid var(--rule);
  border-radius: 6px;
  padding: 1.2rem 1.4rem;
  margin-bottom: 1.25rem;
}

.teach h3 {
  margin: 0 0 0.15em;
  font-size: 1.1rem;
}

.teach .meta {
  font-size: 0.88rem;
  color: var(--muted);
  margin: 0 0 0.8em;
}

.teach p { font-size: 0.95rem; margin: 0 0 0.6em; }

/* Section intro */
.section-intro {
  color: var(--text-soft);
  font-size: 0.98rem;
  margin-bottom: 1.5rem;
}

/* Footer */
.footer {
  grid-column: 1 / -1;
  margin-top: 4rem;
  padding-top: 1.25rem;
  border-top: 1px solid var(--rule);
  font-size: 0.82rem;
  color: var(--muted);
  text-align: center;
}
.footer a { color: var(--muted); border: none; }
.footer a:hover { color: var(--accent); }

/* Subtle text for placeholder content */
.placeholder-note {
  font-size: 0.85rem;
  color: var(--muted);
  font-style: italic;
  padding: 0.6rem 0.9rem;
  background: var(--bg-soft);
  border-left: 3px solid var(--rule);
  margin: 1rem 0;
}