/* ============================================================
   Yin Minn Pa Pa — academic site
   Design: minimal, warm, professional, calm — with more presence.
   Source Serif 4 (headings) / IBM Plex Sans (body) / IBM Plex Mono (dates, used sparingly)
   ============================================================ */

:root{
  --bg:#FAF7F2;
  --panel:#FFFFFF;
  --panel-dim:#F3EEE6;
  --ink:#2B2620;
  --ink-soft:#6E655C;
  --line:#E8E1D5;
  --sage:#5C7266;
  --sage-deep:#42544A;
  --sage-tint:#EEF1EC;
  --clay:#AD8760;
  --clay-soft:#F1E7D9;
  --radius:12px;
  --maxw:900px;
  --shadow-sm:0 1px 3px rgba(43,38,32,0.05), 0 1px 2px rgba(43,38,32,0.04);
  --shadow-md:0 6px 20px rgba(43,38,32,0.07);
}
*{box-sizing:border-box;}
html{scroll-behavior:smooth;font-size:21px;}
body{
  margin:0;
  background:var(--bg);
  color:var(--ink);
  font-family:'IBM Plex Sans',sans-serif;
  line-height:1.7;
  -webkit-font-smoothing:antialiased;
}
h1,h2,h3{
  font-family:'Source Serif 4',serif;
  font-weight:600;
  margin:0;
  color:var(--ink);
  letter-spacing:-0.01em;
}
a{color:var(--sage-deep);text-decoration:none;}
a:hover{text-decoration:underline;}
.mono{font-family:'IBM Plex Mono',monospace;}
.wrap{max-width:var(--maxw);margin:0 auto;padding:0 28px;}
.eyebrow{
  font-family:'IBM Plex Sans',sans-serif;
  font-size:0.8rem;letter-spacing:0.08em;text-transform:uppercase;
  color:var(--ink-soft);
  font-weight:500;
}

/* ---------- top bar ---------- */
.topbar{
  position:sticky;top:0;z-index:50;
  background:rgba(250,247,242,0.92);
  backdrop-filter:blur(8px);
  border-bottom:1px solid var(--line);
}
.topbar-inner{
  max-width:var(--maxw);margin:0 auto;padding:20px 28px;
  display:flex;align-items:center;justify-content:space-between;flex-wrap:wrap;gap:10px;
}
.brand{font-family:'Source Serif 4',serif;font-weight:600;font-size:1.15rem;color:var(--ink);}
.nav-links{display:flex;gap:28px;flex-wrap:wrap;}
.nav-links a{
  color:var(--ink-soft);font-size:0.92rem;font-family:'IBM Plex Sans',sans-serif;letter-spacing:0.01em;
}
.nav-links a:hover{color:var(--sage-deep);text-decoration:none;}
.nav-links a.active{color:var(--sage-deep);border-bottom:1.5px solid var(--sage);padding-bottom:3px;}

/* ---------- hero ---------- */
header.hero{
  padding:68px 0 60px;
  background:linear-gradient(180deg, var(--sage-tint) 0%, var(--bg) 78%);
}
.hero-inner{display:flex;gap:40px;align-items:center;flex-wrap:wrap;}
.hero-photo{
  width:132px;height:132px;border-radius:50%;
  object-fit:cover;object-position:center 15%;flex-shrink:0;
  border:3px solid var(--panel);
  box-shadow:var(--shadow-md);
}
.hero-text{flex:1;min-width:280px;}
.hero-text h1{font-size:2.5rem;line-height:1.12;}
.hero-role{font-size:1.05rem;color:var(--sage-deep);margin-top:9px;font-weight:500;font-family:'IBM Plex Sans',sans-serif;}
.hero-institution{color:var(--ink-soft);font-size:0.94rem;margin-top:3px;}
.hero-blurb{margin-top:18px;max-width:58ch;font-size:1.04rem;color:var(--ink);line-height:1.75;}
.hero-links{display:flex;gap:11px;flex-wrap:wrap;margin-top:24px;}

/* ---------- page header (for sub-pages) ---------- */
.page-header{padding:60px 0 10px;position:relative;}
.page-header::before{content:'';display:block;width:36px;height:3px;background:var(--sage);border-radius:2px;margin-bottom:16px;}
.page-header h1{font-size:2.15rem;margin-top:10px;}
.page-lede{color:var(--ink-soft);margin-top:14px;max-width:60ch;font-size:1rem;line-height:1.7;}

/* ---------- pills ---------- */
.pill{
  display:inline-flex;align-items:center;gap:6px;
  padding:9px 18px;border-radius:999px;
  border:1px solid var(--line);background:var(--panel);
  font-family:'IBM Plex Sans',sans-serif;font-size:0.88rem;color:var(--ink);
  transition:all .15s ease;
  box-shadow:var(--shadow-sm);
}
.pill:hover{border-color:var(--sage);color:var(--sage-deep);text-decoration:none;background:var(--sage-tint);transform:translateY(-1px);}
.pill.solid{background:var(--sage-deep);color:#fff;border-color:var(--sage-deep);}
.pill.solid:hover{background:var(--sage);}

/* ---------- sections ---------- */
section{padding:56px 0;border-bottom:1px solid var(--line);}
section:last-of-type{border-bottom:none;}
.sec-head{margin-bottom:28px;position:relative;}
.sec-head::before{content:'';display:block;width:32px;height:3px;background:var(--sage);border-radius:2px;margin-bottom:14px;}
.sec-head h2{font-size:1.55rem;margin-top:8px;}
.sec-lede{color:var(--ink-soft);margin-top:11px;max-width:60ch;font-size:0.98rem;line-height:1.7;}

/* ---------- research / info cards ---------- */
.grid-cards{display:grid;grid-template-columns:repeat(2,1fr);gap:16px;}
.card{
  background:var(--panel);border:1px solid var(--line);border-radius:var(--radius);padding:24px 26px;
  box-shadow:var(--shadow-sm);transition:box-shadow .15s ease, transform .15s ease;
  position:relative;
}
.card:hover{box-shadow:var(--shadow-md);transform:translateY(-2px);}
.card-num{
  display:inline-flex;align-items:center;justify-content:center;
  width:26px;height:26px;border-radius:50%;
  background:var(--sage-tint);color:var(--sage-deep);
  font-family:'IBM Plex Sans',sans-serif;font-size:0.8rem;font-weight:600;
  margin-bottom:12px;
}
.card h3{font-size:1.08rem;font-weight:600;margin-bottom:9px;font-family:'Source Serif 4',serif;}
.card-question{
  font-family:'Source Serif 4',serif;font-style:italic;
  color:var(--sage-deep);font-size:0.98rem;margin:0 0 10px;
}
.card p{margin:0;color:var(--ink-soft);font-size:0.93rem;line-height:1.65;}

/* ---------- awards ---------- */
.awards{display:flex;flex-direction:column;gap:0;border-top:1px solid var(--line);}
.award{
  display:flex;align-items:baseline;gap:16px;padding:16px 2px;border-bottom:1px solid var(--line);
}
.award .mono{font-size:0.8rem;color:var(--clay);flex-shrink:0;width:200px;}
.award strong{font-size:0.93rem;font-weight:500;color:var(--ink);}

/* ---------- publications / talks list ---------- */
.pub-controls{display:flex;gap:10px;flex-wrap:wrap;align-items:center;margin-bottom:24px;}
#pubSearch{
  flex:1;min-width:200px;padding:12px 18px;border-radius:9px;border:1px solid var(--line);
  background:var(--panel);font-family:'IBM Plex Sans',sans-serif;font-size:0.94rem;color:var(--ink);
  box-shadow:var(--shadow-sm);
}
#pubSearch:focus{outline:2px solid var(--sage);outline-offset:1px;}
#yearFilter{
  padding:12px 16px;border-radius:9px;border:1px solid var(--line);
  background:var(--panel);font-family:'IBM Plex Sans',sans-serif;font-size:0.9rem;color:var(--ink);
  box-shadow:var(--shadow-sm);
}
.pub-count{font-family:'IBM Plex Sans',sans-serif;font-size:0.85rem;color:var(--ink-soft);margin-bottom:16px;}
.year-heading{
  font-family:'Source Serif 4',serif;font-size:1.08rem;font-weight:600;color:var(--ink);
  margin:30px 0 12px;padding-bottom:9px;border-bottom:1px solid var(--line);
}
.year-heading:first-child{margin-top:0;}
.pub{display:flex;gap:15px;padding:16px 0;border-bottom:1px solid var(--line);}
.pub:last-child{border-bottom:none;}
.pub-marker{flex-shrink:0;width:6px;height:6px;border-radius:50%;background:var(--sage);margin-top:10px;}
.pub-body{flex:1;}
.pub-title{font-size:1rem;font-weight:500;color:var(--ink);line-height:1.5;}
.pub-meta{font-size:0.89rem;color:var(--ink-soft);margin-top:5px;line-height:1.6;}
.pub-meta .me{color:var(--ink);font-weight:600;}
.pub-tags{margin-top:8px;display:flex;gap:8px;flex-wrap:wrap;}
.tag{font-family:'IBM Plex Sans',sans-serif;font-size:0.75rem;padding:3px 11px;border-radius:999px;background:var(--clay-soft);color:var(--clay);}
.tag.award{background:var(--sage-tint);color:var(--sage-deep);}
.pub-links{margin-top:8px;}
.pub-links a{font-family:'IBM Plex Sans',sans-serif;font-size:0.86rem;margin-right:16px;color:var(--sage-deep);}
.no-results{color:var(--ink-soft);font-size:0.94rem;padding:22px 0;}

/* ---------- teaching ---------- */
.teach-grid{display:grid;grid-template-columns:1.3fr 1fr 1fr;gap:16px;}
.teach-card{
  border:1px solid var(--line);border-radius:var(--radius);padding:24px 26px;background:var(--panel);
  box-shadow:var(--shadow-sm);
}
.teach-status{
  font-family:'IBM Plex Sans',sans-serif;font-size:0.76rem;letter-spacing:0.04em;
  display:inline-block;padding:4px 12px;border-radius:999px;margin-bottom:13px;
}
.teach-status.ongoing{background:var(--sage-tint);color:var(--sage-deep);}
.teach-status.planned{background:var(--clay-soft);color:var(--clay);}
.teach-card h3{font-size:1.1rem;margin-bottom:8px;font-family:'Source Serif 4',serif;}
.teach-card p{margin:0;color:var(--ink-soft);font-size:0.92rem;line-height:1.65;}
.teach-meta{font-family:'IBM Plex Sans',sans-serif;font-size:0.82rem;color:var(--ink-soft);margin-top:13px;}

/* ---------- timeline ---------- */
.tl{border-left:1px solid var(--line);margin-left:4px;padding-left:26px;}
.tl-item{position:relative;padding-bottom:26px;}
.tl-item:last-child{padding-bottom:0;}
.tl-item::before{
  content:'';position:absolute;left:-31px;top:6px;
  width:8px;height:8px;border-radius:50%;background:var(--sage);border:2px solid var(--bg);
}
.tl-date{font-family:'IBM Plex Sans',sans-serif;font-size:0.82rem;color:var(--clay);font-weight:500;}
.tl-role{font-weight:600;margin-top:4px;font-family:'Source Serif 4',serif;font-size:1.08rem;}
.tl-org{color:var(--ink-soft);font-size:0.92rem;margin-top:2px;}

/* ---------- misc ---------- */
.two-col{display:grid;grid-template-columns:1fr 1fr;gap:52px;}
ul.plain{list-style:none;padding:0;margin:0;}
ul.plain li{padding:10px 0;border-bottom:1px solid var(--line);font-size:0.94rem;color:var(--ink-soft);line-height:1.6;}
ul.plain li:last-child{border-bottom:none;}
ul.plain li strong{color:var(--ink);font-weight:500;}
.view-all{margin-top:22px;display:inline-block;}

footer{padding:52px 0 68px;text-align:center;}
footer .mono{color:var(--ink-soft);font-size:0.86rem;font-family:'IBM Plex Sans',sans-serif;}
footer .email{font-family:'Source Serif 4',serif;font-size:1.25rem;color:var(--sage-deep);display:inline-block;margin:18px 0;}

@media (max-width:720px){
  html{font-size:19px;}
  .grid-cards{grid-template-columns:1fr;}
  .teach-grid{grid-template-columns:1fr;}
  .two-col{grid-template-columns:1fr;gap:8px;}
  .hero-text h1{font-size:1.9rem;}
  .award{flex-direction:column;gap:4px;}
  .award .mono{width:auto;}
}