/* ==========================================================================
   vardhandongre.com — shared stylesheet
   Bright white page, bordered content cards, Garamond serif for display
   headings, Inter for body/UI text, muted green accent.
   ========================================================================== */

:root, html[data-theme="light"]{
  --bg:#ffffff;                 /* page */
  --card:#ffffff;               /* content surfaces */
  --card-2:#f6f6f4;             /* slightly tinted surface */
  --ink:rgba(20,18,15,.9);
  --ink-soft:rgba(20,18,15,.72);
  --muted:rgba(20,18,15,.52);
  --faint:rgba(20,18,15,.34);
  --rule:rgba(20,18,15,.12);
  --rule-strong:rgba(20,18,15,.22);
  --accent:#5f9b65;             /* LessWrong green */
  --accent-ink:#3f7a46;
  --accent-soft:rgba(95,155,101,.12);
  --gold:#c9a86a;
  --shadow:none;
  --shadow-hover:0 2px 8px rgba(0,0,0,.06);
  --serif:'EB Garamond', 'Warnock Pro', Palatino, 'Palatino Linotype', 'Book Antiqua', Georgia, serif;
  --sans:'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
  --mono:'JetBrains Mono', ui-monospace, SFMono-Regular, Menlo, monospace;
  --sidebar-w:220px;
  --content-w:840px;
}
html[data-theme="dark"]{
  --bg:#141414;
  --card:#141414;
  --card-2:#1e1e1e;
  --ink:rgba(240,234,222,.92);
  --ink-soft:rgba(240,234,222,.76);
  --muted:rgba(240,234,222,.56);
  --faint:rgba(240,234,222,.36);
  --rule:rgba(240,234,222,.10);
  --rule-strong:rgba(240,234,222,.18);
  --accent:#8fbf93;
  --accent-ink:#a6cfa9;
  --accent-soft:rgba(143,191,147,.14);
  --gold:#d5b77a;
  --shadow:none;
  --shadow-hover:0 2px 8px rgba(0,0,0,.4);
}

/* --- Base ---------------------------------------------------------------- */
html{transition:background-color .25s, color .25s}
html[data-theme="dark"]{color-scheme:dark}
*{box-sizing:border-box}
html,body{margin:0;padding:0;background:var(--bg);color:var(--ink);font-family:var(--sans);font-size:17px;line-height:1.6;-webkit-font-smoothing:antialiased;text-rendering:optimizeLegibility}
::selection{background:var(--accent-soft);color:var(--ink)}
a{color:var(--accent-ink);text-decoration:none;border-bottom:1px solid transparent;transition:border-color .15s, color .15s}
a:hover{border-bottom-color:currentColor}
img{max-width:100%}
h1,h2,h3,h4{font-family:var(--serif);font-weight:500;line-height:1.15;margin:0;color:var(--ink);letter-spacing:-.005em}
p{margin:0 0 1em}
button{font-family:inherit}
:focus-visible{outline:2px solid var(--accent);outline-offset:2px;border-radius:2px}

/* --- Shell: sidebar + content ------------------------------------------- */
.shell{position:relative;z-index:1;display:flex;min-height:100vh}

.sidebar{width:var(--sidebar-w);flex-shrink:0;position:sticky;top:0;height:100vh;padding:28px 18px 28px 26px;display:flex;flex-direction:column;gap:6px}
.sidebar .brand{font-family:var(--serif);font-size:17.5px;color:var(--ink);border:0;margin:0 0 22px 10px;display:block;text-transform:uppercase;letter-spacing:.08em;white-space:nowrap}
.sidebar .brand:hover{color:var(--accent-ink)}
.sidebar nav a{display:flex;align-items:center;gap:12px;padding:8px 10px;border-radius:6px;color:var(--ink-soft);font-size:16px;font-weight:500;border:0;transition:background .15s,color .15s}
.sidebar nav a svg{width:18px;height:18px;flex-shrink:0;opacity:.6;stroke:currentColor;fill:none;stroke-width:1.7;stroke-linecap:round;stroke-linejoin:round}
.sidebar nav a:hover{background:var(--card-2);color:var(--ink)}
.sidebar nav a.is-current{color:var(--ink);background:var(--card-2)}
.sidebar nav a.is-current svg{opacity:1;color:var(--accent)}
.sidebar .sub{margin:2px 0 8px 40px;display:flex;flex-direction:column;gap:2px}
.sidebar .sub a{padding:3px 0;font-size:14px;color:var(--muted);border:0;display:block}
.sidebar .sub a:hover{color:var(--ink);background:none}
.sidebar .bottom{margin-top:auto;margin-left:10px;display:flex;align-items:center;gap:10px}

.theme-toggle{appearance:none;border:1px solid var(--rule-strong);background:transparent;color:var(--muted);width:32px;height:32px;border-radius:999px;cursor:pointer;display:inline-flex;align-items:center;justify-content:center;padding:0;transition:color .15s,border-color .15s,background .15s}
.theme-toggle:hover{color:var(--accent-ink);border-color:var(--accent);background:var(--accent-soft)}
.theme-toggle svg{width:15px;height:15px;display:block}
.theme-toggle .moon{display:none}
html[data-theme="dark"] .theme-toggle .moon{display:block}
html[data-theme="dark"] .theme-toggle .sun{display:none}
.sidebar .bottom span{font-family:var(--mono);font-size:10.5px;color:var(--faint);letter-spacing:.04em}

.content{flex:1;min-width:0;padding:44px 40px 96px 40px;display:flex;justify-content:center}
.content-inner{width:100%;max-width:var(--content-w)}
.content-inner.wide{max-width:1080px}

/* Mobile: top bar + slide-in sidebar */
.topbar{display:none}
@media(max-width:850px){
  .shell{display:block}
  .topbar{display:flex;position:sticky;top:0;z-index:50;align-items:center;justify-content:space-between;padding:12px 16px;background:var(--bg);border-bottom:1px solid var(--rule)}
  .topbar .brand{font-family:var(--serif);font-variant:small-caps;letter-spacing:.06em;font-size:19px;color:var(--ink);border:0}
  .topbar button{appearance:none;background:none;border:1px solid var(--rule-strong);color:var(--ink);border-radius:6px;padding:6px 10px;font-size:18px;line-height:1;cursor:pointer}
  .sidebar{position:fixed;top:0;left:0;height:100vh;width:260px;background:var(--bg);border-right:1px solid var(--rule);box-shadow:2px 0 24px rgba(0,0,0,.12);transform:translateX(-102%);transition:transform .25s ease;z-index:60;overflow-y:auto}
  .sidebar.open{transform:translateX(0)}
  .scrim{position:fixed;inset:0;background:rgba(0,0,0,.25);z-index:55;opacity:0;pointer-events:none;transition:opacity .25s}
  .scrim.show{opacity:1;pointer-events:auto}
  .content{padding:24px 16px 72px;display:block}
}

/* --- Cards & sections ---------------------------------------------------- */
.card{background:var(--card);border:1px solid var(--rule);border-radius:8px;padding:26px 30px}
@media(max-width:600px){.card{padding:20px 18px}}
.section{margin-top:34px}
.section-head{display:flex;align-items:baseline;justify-content:space-between;gap:16px;margin:0 0 14px 4px}
.section-head h2{font-size:28px;font-weight:500}
.section-head a.more{font-size:15px;color:var(--muted);border:0}
.section-head a.more:hover{color:var(--accent-ink)}

.eyebrow{font-family:var(--mono);font-size:12px;letter-spacing:.14em;text-transform:uppercase;color:var(--muted)}

/* --- Home hero ----------------------------------------------------------- */
.hero{display:block}
.hero h1{font-size:42px;font-weight:500;line-height:1.05;margin-bottom:14px}
.hero .bio{font-size:17px;line-height:1.65;color:var(--ink-soft);margin:0 0 14px;text-wrap:pretty}
.hero .bio a{color:var(--ink);border-bottom:1px solid var(--rule-strong)}
.hero .bio a:hover{color:var(--accent-ink);border-bottom-color:var(--accent)}
.links-row{display:flex;flex-wrap:wrap;gap:6px 18px;font-size:15px}
.links-row a{color:var(--muted);border:0;display:inline-flex;align-items:center;gap:6px}
.links-row a svg{width:14px;height:14px;stroke:currentColor;fill:none;stroke-width:1.8;stroke-linecap:round;stroke-linejoin:round}
.links-row a:hover{color:var(--accent-ink)}

/* --- Prose (research blurb, mentoring) ----------------------------------- */
.prose{font-family:var(--sans);font-size:17px;line-height:1.7;color:var(--ink-soft)}
.prose p{margin:0 0 .8em}
.prose p:last-child{margin-bottom:0}
.prose em{color:var(--ink)}
.prose a{color:var(--accent-ink)}
.prose strong{color:var(--ink);font-weight:600}

/* Interests: pills */
.pills{display:flex;flex-wrap:wrap;gap:8px;margin-top:16px}
.pills span{font-size:14px;padding:5px 11px;border-radius:999px;border:1px solid var(--rule-strong);color:var(--ink-soft);background:var(--card-2)}

/* --- News rows ----------------------------------------------------------- */
.rows{display:grid;grid-template-columns:80px 1fr;gap:12px 20px}
.rows .when{font-family:var(--mono);font-size:11.5px;color:var(--muted);padding-top:4px;letter-spacing:.03em;white-space:nowrap}
.rows .what{font-size:15.5px;color:var(--ink-soft);text-wrap:pretty}
.rows .what strong{color:var(--ink);font-weight:600}
@media(max-width:480px){.rows{grid-template-columns:1fr;gap:2px 0}.rows .what{margin-bottom:10px}}

/* --- Publications -------------------------------------------------------- */
.pub-list{display:flex;flex-direction:column}
.pub{display:grid;grid-template-columns:220px 1fr;gap:22px;padding:20px 0;border-top:1px solid var(--rule);align-items:start}
.pub:first-child{border-top:0;padding-top:4px}
.pub-list.compact .pub{grid-template-columns:1fr;padding:16px 0}
@media(max-width:600px){.pub{grid-template-columns:1fr;gap:12px}}
.pub .thumb{width:220px;max-width:100%;border-radius:4px;overflow:hidden;border:1px solid var(--rule);background:#fff;display:flex;align-items:center;justify-content:center}
.pub .thumb img{width:100%;height:auto;display:block}
.pub .thumb .mono{padding:40px 10px;font-family:var(--sans);font-weight:600;font-size:13px;color:var(--faint);letter-spacing:.12em;text-transform:uppercase;text-align:center;padding:0 10px;line-height:1.3}
.pub .title{font-family:var(--sans);font-size:17px;line-height:1.4;color:var(--ink);font-weight:600;margin:0 0 6px}
.pub .title a{color:inherit;border:0}
.pub .title a:hover{color:var(--accent-ink)}
.pub .authors{font-size:15px;color:var(--ink-soft);margin:0 0 4px;line-height:1.55}
.pub .authors .me{font-weight:600;color:var(--ink)}
.pub .authors .eq{font-size:.75em;line-height:0;color:var(--muted)}
.pub .authors .eqnote{font-size:13px;color:var(--muted);white-space:nowrap}
.pub .venue{font-size:15px;color:var(--muted);margin:0 0 8px}
.pub .venue em{font-style:italic;color:var(--ink-soft)}
.pub .venue .badge{display:inline-block;margin-left:8px;font-family:var(--mono);font-size:11px;letter-spacing:.08em;text-transform:uppercase;padding:2px 7px;border-radius:3px;background:var(--accent-soft);color:var(--accent-ink);vertical-align:1px}
.pub .links{display:flex;flex-wrap:wrap;gap:6px}
.pub .links a{font-size:13.5px;font-weight:500;padding:3px 10px;border:1px solid var(--rule-strong);border-radius:4px;color:var(--ink-soft);background:var(--card-2)}
.pub .links a:hover{border-color:var(--accent);color:var(--accent-ink);background:var(--accent-soft)}
.pub .abstract{font-size:14.5px;color:var(--muted);margin:8px 0 0;line-height:1.5;text-wrap:pretty}

/* Filter chips (publications page, notes) */
.filters{display:flex;flex-wrap:wrap;gap:6px;align-items:center;margin:0 0 18px}
.filters .label{font-family:var(--mono);font-size:11.5px;letter-spacing:.1em;text-transform:uppercase;color:var(--muted);margin-right:6px}
.chip{appearance:none;border:1px solid var(--rule-strong);background:var(--card);color:var(--ink-soft);font:500 14px/1 var(--sans);padding:7px 12px;border-radius:999px;cursor:pointer;transition:background .15s,color .15s,border-color .15s}
.chip:hover{border-color:var(--accent)}
.chip[aria-pressed="true"]{background:var(--accent);border-color:var(--accent);color:#fff}
.chip .n{opacity:.6;margin-left:4px;font-family:var(--mono);font-size:10.5px}

.year-head{font-family:var(--sans);font-weight:600;font-size:13px;letter-spacing:.14em;text-transform:uppercase;color:var(--muted);margin:26px 0 4px;padding-bottom:8px;border-bottom:1px solid var(--rule-strong)}
.year-head:first-of-type{margin-top:0}
.pub-list .pub[hidden], .year-group[hidden]{display:none}
.empty{font-family:var(--serif);font-style:italic;color:var(--muted);padding:28px 0;text-align:center}
.empty[hidden]{display:none}

/* --- Notes list ---------------------------------------------------------- */
.post-list{display:flex;flex-direction:column}
.post-row{display:grid;grid-template-columns:1fr auto;gap:6px 20px;padding:16px 0;border-top:1px solid var(--rule);align-items:baseline}
.post-row:first-child{border-top:0;padding-top:4px}
.post-row .t{font-family:var(--sans);font-weight:600;font-size:18px;line-height:1.4;color:var(--ink)}
.post-row .t a{color:inherit;border:0}
.post-row .t a:hover{color:var(--accent-ink)}
.post-row .d{font-family:var(--mono);font-size:12px;letter-spacing:.04em;color:var(--muted);white-space:nowrap;text-transform:uppercase}
.post-row .s{grid-column:1 / -1;font-size:15.5px;color:var(--muted);text-wrap:pretty}
.post-row .tags{grid-column:1 / -1;display:flex;gap:6px;flex-wrap:wrap}
.post-row .tags span{font-size:12.5px;color:var(--muted);border:1px solid var(--rule);border-radius:3px;padding:1px 7px}
.post-row[hidden]{display:none}
@media(max-width:480px){.post-row{grid-template-columns:1fr}.post-row .d{order:-1}}

/* --- Article (post page) ------------------------------------------------- */
.article-head{margin:0 0 28px}
.article-head .kicker{font-family:var(--mono);font-size:12px;letter-spacing:.12em;text-transform:uppercase;color:var(--muted);display:flex;flex-wrap:wrap;gap:10px;margin-bottom:14px}
.article-head .kicker .dot{opacity:.5}
.article-head h1{font-size:42px;line-height:1.1;margin:0 0 14px;text-wrap:balance}
@media(max-width:600px){.article-head h1{font-size:32px}}
.article-head .byline{font-family:var(--sans);font-size:16px;color:var(--muted);margin:0}
.article-head .byline b{font-style:normal;font-weight:500;color:var(--ink-soft)}

.lede{font-family:var(--sans);font-size:20px;line-height:1.6;color:var(--ink-soft);margin:0 0 26px;text-wrap:pretty}
.body{font-family:var(--sans);font-size:17.5px;line-height:1.75;color:var(--ink);text-wrap:pretty}
.body p{margin:0 0 22px}
.body h2{font-size:28px;margin:44px 0 14px}
.body h3{font-family:var(--sans);font-weight:600;font-size:19px;margin:32px 0 10px;color:var(--ink)}
.body a{color:var(--accent-ink);border-bottom:1px solid var(--accent-soft)}
.body a:hover{border-bottom-color:var(--accent)}
.body strong{font-weight:600}
.body blockquote{margin:26px 0;padding:4px 0 4px 22px;border-left:2px solid var(--accent);font-style:italic;color:var(--ink-soft)}
.body ul,.body ol{margin:0 0 22px;padding-left:26px}
.body li{margin:0 0 8px}
.body code{font-family:var(--mono);font-size:.88em;background:color-mix(in srgb, var(--ink) 6%, transparent);padding:1.5px 6px;border-radius:4px}
.body pre{font-family:var(--mono);font-size:14px;line-height:1.55;background:var(--card-2);border:1px solid var(--rule);border-radius:6px;padding:14px 16px;overflow-x:auto;margin:0 0 22px}
.body pre code{background:none;padding:0;font-size:inherit}
.body hr{border:0;border-top:1px solid var(--rule-strong);margin:44px auto;width:40%}
.body img{display:block;border-radius:4px}

figure{margin:32px 0}
figure img{width:100%;display:block;border:1px solid var(--rule);border-radius:4px}
figure .placeholder{width:100%;aspect-ratio:16/9;border:1px solid var(--rule);border-radius:4px;background:repeating-linear-gradient(45deg, color-mix(in srgb, var(--ink) 4%, transparent) 0 8px, transparent 8px 16px), var(--card-2);display:flex;align-items:center;justify-content:center;color:var(--muted);font-family:var(--mono);font-size:11px;letter-spacing:.06em;text-transform:uppercase}
figure.plot .placeholder{aspect-ratio:5/3;background:var(--card-2);position:relative;overflow:hidden}
figure.plot .placeholder svg{width:100%;height:100%;display:block}
figcaption{font-family:var(--sans);font-size:14.5px;line-height:1.5;color:var(--muted);margin-top:10px;text-wrap:pretty}
figcaption b{font-weight:600;color:var(--ink-soft);margin-right:6px}

/* Theme-aware plot SVGs (override hardcoded colors in dark mode) */
html[data-theme="dark"] figure.plot svg [stroke="#7a756c"]{stroke:var(--muted)}
html[data-theme="dark"] figure.plot svg [stroke="#e6e1d8"]{stroke:var(--rule-strong)}
html[data-theme="dark"] figure.plot svg [stroke="#3d3a34"]{stroke:var(--ink-soft)}
html[data-theme="dark"] figure.plot svg [fill="#7a756c"]{fill:var(--muted)}
html[data-theme="dark"] figure.plot svg [fill="#1a1814"]{fill:var(--ink)}
html[data-theme="dark"] figure.plot svg [fill="#3d3a34"]{fill:var(--ink-soft)}
figure.plot svg [fill="#5f9b65"]{fill:var(--accent)}

.refs{margin-top:56px;padding-top:22px;border-top:1px solid var(--rule-strong)}
.refs h2{font-size:13px;letter-spacing:.16em;text-transform:uppercase;color:var(--muted);margin:0 0 14px;font-family:var(--sans);font-weight:600}
.refs ol{font-family:var(--sans);font-size:15px;color:var(--ink-soft);padding-left:22px;margin:0}
.refs li{margin:0 0 8px;line-height:1.5}
.refs li::marker{color:var(--muted);font-variant-numeric:tabular-nums}

.post-nav{margin-top:40px;padding-top:20px;border-top:1px solid var(--rule);display:flex;justify-content:space-between;gap:16px;font-size:15.5px}
.post-nav a{color:var(--muted);border:0}
.post-nav a:hover{color:var(--accent-ink)}

/* --- Misc ---------------------------------------------------------------- */
.callout{border-left:2px solid var(--accent);padding:2px 0 2px 18px;color:var(--ink-soft);font-size:17px;line-height:1.65}
.callout em{font-style:normal;color:var(--ink);font-weight:500}
.contact{display:grid;grid-template-columns:90px 1fr;gap:10px 20px;font-size:16px;margin:0}
.contact dt{font-family:var(--mono);font-size:12px;color:var(--muted);padding-top:4px;text-transform:uppercase;letter-spacing:.06em}
.contact dd{margin:0;color:var(--ink-soft)}
.service p{margin:0;font-size:16px;color:var(--ink-soft)}
.service b{color:var(--ink);font-weight:600}

footer.site{margin-top:56px;padding-top:18px;border-top:1px solid var(--rule);font-family:var(--mono);font-size:12px;color:var(--faint);display:flex;justify-content:space-between;flex-wrap:wrap;gap:8px;letter-spacing:.03em}
footer.site a{color:inherit;border:0}
footer.site a:hover{color:var(--accent-ink)}

/* --- Home: main column + info column (Ranjay Krishna-style) ------------- */
.home-grid{display:grid;grid-template-columns:1fr 250px;gap:36px;align-items:start}
.home-grid .main-col{min-width:0}
.info{position:sticky;top:44px;font-size:14.5px;line-height:1.55;color:var(--ink-soft);order:2}
.info .portrait{width:100%;max-width:220px;aspect-ratio:1;border-radius:8px;object-fit:cover;display:block;margin-bottom:16px}
.info h4{font-family:var(--sans);font-weight:600;font-size:11.5px;letter-spacing:.12em;text-transform:uppercase;color:var(--muted);margin:0 0 8px}
.info .info-block{margin:0 0 12px}
.info .info-block b{display:block;color:var(--ink);font-weight:600}
.info .info-block .muted{color:var(--muted);font-size:13.5px}
.info .info-block a{color:var(--accent-ink)}
.info .links{display:flex;flex-direction:column;gap:6px}
.info .links a{display:inline-flex;align-items:center;gap:8px;color:var(--ink-soft)}
.info .links a:hover{color:var(--accent-ink)}
.info .links svg{width:16px;height:16px;flex-shrink:0;color:var(--muted)}
.info hr{border:0;border-top:1px solid var(--rule);margin:16px 0}
.info .org{display:flex;gap:10px;align-items:flex-start}
.info .org-logo{width:34px;height:34px;object-fit:contain;flex-shrink:0;border:1px solid var(--rule);border-radius:6px;background:#fff;padding:5px;margin-top:2px}
.info .org-logo[src$="brunswick.jpg"]{padding:0;object-fit:cover}
.hero .bio b{color:var(--ink);font-weight:600}
@media(max-width:1000px){
  .home-grid{grid-template-columns:1fr}
  .info{position:static;order:-1;display:grid;grid-template-columns:140px 1fr;gap:4px 24px;align-items:start;margin-bottom:8px}
  .info .portrait{grid-row:1 / span 6;width:140px;margin:0}
  .info hr{display:none}
}
@media(max-width:600px){.info{grid-template-columns:1fr}.info .portrait{grid-row:auto;margin-bottom:12px}}

/* Service lists */
.service h3.sub{font-family:var(--sans);font-weight:600;font-size:11.5px;letter-spacing:.12em;text-transform:uppercase;color:var(--muted);margin:0 0 8px}
.service h3.sub + p{margin-bottom:0}
.service-list{list-style:none;margin:0 0 20px;padding:0}
.service-list li{padding:6px 0;border-top:1px solid var(--rule);font-size:15.5px;color:var(--ink-soft);line-height:1.5}
.service-list li:first-child{border-top:0;padding-top:0}
.service-list li b{color:var(--ink);font-weight:600}