/* ---------------------------------------------------------
   Personal academic site — sidebar layout
   --------------------------------------------------------- */

:root {
  --paper:  #ffffff;
  --ink:    #212529;
  --muted:  #6a6a66;
  --rule:   #ebeae6;                      
  --link:   #1f4e79;
  --link-h: #0f3457;

  --serif: Charter, "Bitstream Charter", "Sitka Text", Cambria, Georgia, serif;
  --sans:  -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
}

*, *::before, *::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }

body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: var(--serif);
  font-size: 1.0625rem;
  line-height: 1.65;
}

/* ---------- Two-column shell ---------- */

.layout {
  display: grid;
  grid-template-columns: 15rem 1fr;
  gap: 0 4rem;
  max-width: 62rem;
  margin: 0 auto;
  padding: 4rem 2rem 6rem;
  align-items: start;
}

.page-header { grid-column: 1 / -1; margin-bottom: 1.75rem; }

.sidebar { padding-top: 0.4rem; }

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

.portrait {
  display: block;
  width: 100%;
  margin-bottom: 0.6rem;  
}


.site-name {
  margin: 0;
  font-size: 2.75rem;         
  font-weight: 600;
  line-height: 1.1;
  letter-spacing: -0.02em;
}

.role {
  margin: 0 0 0.9rem;     
  color: var(--muted);
  font-family: var(--sans);
  font-size: 0.95rem;
}


.sidebar-links {
  margin: 0;
  padding: 0;
  list-style: none;
  font-family: var(--sans);
  font-size: 0.95rem;
}

.sidebar-links li { margin-bottom: 0.1rem; overflow-wrap: anywhere; }
.sidebar-links a { text-decoration: none; }
.sidebar-links a:hover { text-decoration: underline; }

/* ---------- Links ---------- */

a { color: var(--link); text-decoration-thickness: 1px; text-underline-offset: 2px; }
a:hover { color: var(--link-h); }
a:focus-visible { outline: 2px solid var(--link); outline-offset: 3px; border-radius: 2px; }

/* ---------- Content column ---------- */

main { max-width: 36rem; }
main > *:first-child { margin-top: 0; }

h2 {
  margin: 2.75rem 0 1rem;
  padding-bottom: 0.4rem;
  border-bottom: 1px solid var(--rule);
  font-size: 0.82rem;
  font-weight: 600;
  font-family: var(--sans);
  text-transform: uppercase;
  letter-spacing: 0.09em;
  color: var(--muted);
}

/* ---------- Papers ---------- */

.paper {
  margin-bottom: 1.6rem;
  color: var(--muted);                    
}

.paper-title {                           
  font-weight: 600;
  color: var(--ink);
  text-decoration: none;
}

a.paper-title:hover {                     
  color: var(--link);
  text-decoration: underline;
}

details { margin-top: 0.35rem; }

details > summary {
  cursor: pointer;
  width: fit-content;
  color: var(--link);
  font-family: var(--sans);
  font-size: 0.78rem;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

details > summary:hover { color: var(--link-h); }
details[open] > summary { margin-bottom: 0.5rem; }

details > p {
  margin: 0;
  padding-left: 0.9rem;
  border-left: 2px solid var(--rule);
  color: var(--ink);        
  font-size: 0.97rem;
}

.status {
  display: block;
  font-style: italic;
  font-size: 0.95rem;
}

/* ---------- Small screens ---------- */
@media (max-width: 46rem) {

  .layout {
    grid-template-columns: 1fr;
    gap: 0;
    padding: 2.5rem 1.25rem 4rem;
  }
  .site-name { font-size: 2rem; }
  .page-header { margin-bottom: 1.5rem; }
  .sidebar {
    padding-top: 0;
    margin-bottom: 2.25rem;
  }
  .portrait { width: 60%; margin-bottom: 0.7rem; }
  body { font-size: 1rem; line-height: 1.55; }
  main { max-width: none; }
  .paper { margin-bottom: 1.8rem; }
  details > p { padding-left: 0.7rem; }
}