/* ===========================================================
   Arvind Krishnamurthy — modeled on the "minimal" theme
   Single-page academic layout: fixed-feel left rail + content
   =========================================================== */

:root {
  --link:       #267cb9;
  --link-hover: #069;
  --text:       #333;
  --head:       #222;
  --muted:      #777;
  --rule:       #e6e6e6;
  --rule-soft:  #f0f0f0;
  --tag-bg:     #eef4f9;
  --bg:         #ffffff;
  --sans: "Open Sans", "Helvetica Neue", Helvetica, Arial, sans-serif;
}

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

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: var(--sans);
  font-size: 16px;
  line-height: 1.55;
  -webkit-font-smoothing: antialiased;
}

a { color: var(--link); text-decoration: none; }
a:hover { color: var(--link-hover); text-decoration: underline; }

.wrap {
  max-width: 60rem;
  margin: 0 auto;
  padding: 3.5rem 2rem 4rem;
  display: grid;
  grid-template-columns: 16rem 1fr;
  gap: 3.25rem;
  align-items: start;
}

/* ---------- Left rail ---------- */
.side { position: sticky; top: 2.25rem; align-self: start; }

.name {
  font-size: 1.9rem;
  font-weight: 700;
  line-height: 1.12;
  color: var(--head);
  margin: 0 0 1.1rem;
  letter-spacing: -0.01em;
}

.headshot {
  width: 100%;
  max-width: 13rem;
  height: auto;
  border-radius: 3px;
  display: block;
  margin-bottom: 1.1rem;
}

.affil {
  font-size: 0.9rem;
  line-height: 1.45;
  color: #555;
  margin: 0 0 1rem;
}
.affil a { color: var(--link); }

.side-links {
  display: flex;
  flex-direction: column;
  gap: 0.3rem;
  font-size: 0.9rem;
  padding-top: 1rem;
  border-top: 1px solid var(--rule);
}

.jump {
  margin-top: 1.25rem;
  padding-top: 1rem;
  border-top: 1px solid var(--rule);
  display: flex;
  flex-direction: column;
  gap: 0.25rem;
  font-size: 0.85rem;
}
.jump a { color: var(--muted); }
.jump a:hover { color: var(--link); }

/* ---------- Main content ---------- */
.content { min-width: 0; max-width: 40rem; }

.content > p { margin: 0 0 1.05rem; }

.intro { font-size: 1.02rem; }

h2.sec {
  font-size: 1.22rem;
  font-weight: 700;
  color: var(--head);
  margin: 2.6rem 0 1.1rem;
  padding-bottom: 0.4rem;
  border-bottom: 1px solid var(--rule);
}

/* lists */
ol.pubs, ul.papers { margin: 0; padding-left: 1.4rem; }
ol.pubs > li { margin-bottom: 1.25rem; padding-left: 0.3rem; }
ul.papers { list-style: square; }
ul.papers > li { margin-bottom: 1rem; padding-left: 0.3rem; }
ul.papers li::marker { color: var(--link); }

.ptitle { font-weight: 700; }
.venue  { font-style: italic; font-weight: 700; }
.year   { color: var(--text); }
.with   { color: #555; }

.tag {
  display: inline-block;
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.02em;
  text-transform: uppercase;
  color: var(--link-hover);
  background: var(--tag-bg);
  padding: 0.08rem 0.45rem;
  border-radius: 3px;
  margin-left: 0.3rem;
  white-space: nowrap;
}
.award { display: block; margin-top: 0.3rem; font-size: 0.85rem; color: var(--muted); }
.linkset { font-size: 0.85rem; color: #999; }

/* collapsible abstracts */
details.abs { margin-top: 0.35rem; }
details.abs > summary {
  cursor: pointer;
  font-size: 0.82rem;
  font-weight: 700;
  color: var(--link);
  list-style: none;
  display: inline-block;
}
details.abs > summary::-webkit-details-marker { display: none; }
details.abs > summary::before { content: "▸ "; font-size: 0.7rem; }
details.abs[open] > summary::before { content: "▾ "; }
details.abs > summary:hover { text-decoration: underline; }
details.abs p {
  margin: 0.5rem 0 0;
  font-size: 0.88rem;
  line-height: 1.5;
  color: #555;
  padding-left: 0.2rem;
}

/* book */
.book-desc p { margin: 0 0 1rem; }

/* footer */
.foot {
  grid-column: 1 / -1;
  margin-top: 2rem;
  padding-top: 1.4rem;
  border-top: 1px solid var(--rule);
  font-size: 0.8rem;
  color: #999;
}

.skip { position: absolute; left: -9999px; }
.skip:focus { left: 0; top: 0; background: #222; color: #fff; padding: 0.5rem 0.9rem; z-index: 5; }
:focus-visible { outline: 2px solid var(--link); outline-offset: 2px; }

/* ---------- Mobile ---------- */
@media (max-width: 820px) {
  .wrap { grid-template-columns: 1fr; gap: 1.75rem; padding: 2rem 1.4rem 3rem; }
  .side { position: static; }
  .headshot { max-width: 11rem; }
  .name { font-size: 1.7rem; }
  .side-links { flex-flow: row wrap; gap: 0.3rem 1.1rem; }
  .jump { display: none; }
  .content { max-width: none; }
}