:root{
  --bg: #F5F4F2;
  --ink: #232220;
  --ink-soft: #62605c;
  --line: #E3E0D8;
  --accent: #2F5F92;      /* soft cornflower blue, darkened for contrast */
  --accent-soft: #EAF1F8;
}
*{box-sizing:border-box;}
body{
  margin:0;
  background:var(--bg);
  color:var(--ink);
  font-family:'Noto Sans KR',sans-serif;
  -webkit-font-smoothing:antialiased;
  line-height:1.65;
}
.wrap{
  max-width:660px;
  margin:0 auto;
  padding:88px 24px 120px;
}

/* header */
header{
  display:flex;
  flex-direction:column;
  align-items:flex-start;
  gap:20px;
  margin-bottom:76px;
}
.photo-wrap{
  position:relative;
  flex-shrink:0;
}
.photo{
  width:76px;
  height:76px;
  border-radius:50%;
  object-fit:cover;
  flex-shrink:0;
  cursor:pointer;
}
.bubble{
  display:none;
  position:absolute;
  left:calc(100% + 14px);
  bottom:calc(50% + 6px);
  background:#fff;
  color:#222;
  padding:8px 14px;
  border-radius:12px;
  border:1px solid #e0e0e0;
  box-shadow:0 2px 8px rgba(0,0,0,0.08);
  white-space:nowrap;
  font-size:14px;
  z-index:2;
}
.bubble::after{
  content:"";
  position:absolute;
  right:100%;
  bottom:10px;
  border:7px solid transparent;
  border-right-color:#fff;
  filter:drop-shadow(-1px 0 0 #e0e0e0);
}
.photo-wrap.show-bubble .bubble{
  display:block;
}
h1{
  font-family:'Nanum Myeongjo', serif;
  font-weight:800;
  font-size:32px;
  margin:0 0 6px;
  letter-spacing:-0.01em;
}
.intro{
  font-size:15.5px;
  color:var(--ink-soft);
  max-width:52ch;
  margin-bottom:0;
}
.intro a{color:var(--accent); text-decoration:none; border-bottom:1px solid rgba(59,114,174,0.3);}
.intro a:hover{border-bottom-color:var(--accent);}
.meta{
  display:flex;
  flex-direction:column;
  gap:0;
  margin-top:-5px;
  font-size:13.5px;
  color:var(--ink-soft);
}
.meta .links{
  display:flex;
  flex-wrap:wrap;
  gap:6px 10px;
}
.meta a{
  display:inline-flex;
  align-items:center;
  gap:5px;
  color:var(--ink-soft);
  text-decoration:none;
  padding-bottom:1px;
  border-bottom:1px solid transparent;
}
.meta a:hover{ color:var(--accent); border-bottom-color:var(--accent); }
.meta .links a{
  position:relative;
}
.meta .links a::after{
  content:"";
  position:absolute;
  inset:-8px -5px;
}
.meta .sep{ color:var(--line); }
.meta .icon{
  width:12px;
  height:12px;
  flex-shrink:0;
  fill:currentColor;
}
.meta .mail-link .icon{
  transform:translateY(1px);
}
.mail{
  display:flex;
  align-items:center;
  flex-wrap:wrap;
  gap:8px;
  margin-top:23px;
}
.mail-pill{
  position:relative;
  display:flex;
  align-items:stretch;
  border:1px solid var(--accent);
  border-radius:20px;
}
.meta .mail-link{
  border-radius:20px 0 0 20px;
  padding:5px 8px 5px 10px;
  color:var(--accent);
  font-weight:500;
  border-bottom:none;
}
.meta .mail-link:hover{
  background:var(--accent-soft);
}
.meta .mail-link .mail-label{
  color:var(--ink-soft);
  font-weight:400;
}
.meta .mail-link:hover .mail-label{
  color:var(--accent);
}
.copy-btn{
  display:flex;
  align-items:center;
  justify-content:center;
  width:34px;
  align-self:stretch;
  border:none;
  border-left:1px solid var(--line);
  border-radius:0 19px 19px 0;
  margin:0;
  padding:0;
  background:none;
  color:var(--ink-soft);
  cursor:pointer;
}
.copy-btn:hover{ color:var(--accent); background:var(--accent-soft); }
.copy-btn .icon{
  width:13px;
  height:13px;
  fill:none;
  stroke:currentColor;
  stroke-width:2;
  stroke-linecap:round;
  stroke-linejoin:round;
}
.copy-btn .check-icon{ display:none; }
.copy-btn.copied .copy-icon{ display:none; }
.copy-btn.copied .check-icon{ display:block; }
.copy-btn.copied .icon{ color:#2f9e52; }
.copy-toast{
  position:absolute;
  top:-30px;
  right:0;
  background:var(--ink);
  color:#fff;
  font-size:11px;
  padding:4px 8px;
  border-radius:6px;
  opacity:0;
  transform:translateY(4px);
  transition:opacity .15s, transform .15s;
  pointer-events:none;
  white-space:nowrap;
}
.copy-toast.show{
  opacity:1;
  transform:translateY(0);
}
@media (pointer:coarse){
  .meta .mail-link{
    padding:10px 8px 10px 10px;
  }
  .copy-btn{
    width:40px;
  }
}

/* section */
section{ margin-bottom:64px; }
section:last-child{ margin-bottom:0; }
.eyebrow{
  display:flex;
  align-items:center;
  gap:10px;
  margin-bottom:22px;
}
.eyebrow .tab{
  width:6px;
  height:18px;
  background:var(--accent);
  border-radius:1px;
}
.eyebrow h2{
  font-family:'Nanum Myeongjo', serif;
  font-weight:800;
  font-size:20px;
  margin:0;
  letter-spacing:0.01em;
}
.eyebrow .count{
  font-size:12.5px;
  color:var(--ink-soft);
  margin-left:2px;
}

/* books — card style, only section with images */
.books{
  display:flex;
  flex-direction:column;
  gap:22px;
}
.book{
  display:flex;
  gap:16px;
  align-items:flex-start;
  padding-bottom:22px;
  border-bottom:1px solid var(--line);
}
.book:last-child{ border-bottom:none; padding-bottom:0; }
.book .cover{
  width:52px;
  height:74px;
  border-radius:3px;
  object-fit:cover;
  border:1px solid var(--line);
  flex-shrink:0;
}
.book .title{ font-size:15.5px; font-weight:500; margin-bottom:4px; }
.book .title a{ color:var(--ink); text-decoration:none; }
.book .title a:hover{ color:var(--accent); }
.book .sub{ font-size:13.5px; color:var(--ink-soft); }
.book .cover-link{ display:block; flex-shrink:0; }
.book .cover.forthcoming{ opacity:0.25; }

/* list rows — papers / articles */
ul.list{
  list-style:none;
  margin:0;
  padding:0;
}
ul.list li{
  display:flex;
  flex-direction:column;
  gap:4px;
  padding:12px 0;
  border-bottom:1px solid var(--line);
}
ul.list li:last-child{ border-bottom:none; }
ul.list a{
  color:var(--ink);
  text-decoration:none;
  font-size:14.5px;
  line-height:1.5;
  display:block;
  white-space:nowrap;
  overflow:hidden;
  text-overflow:ellipsis;
}
ul.list a:hover{ color:var(--accent); }
ul.list .date{
  font-size:12.5px;
  color:var(--ink-soft);
  font-variant-numeric: tabular-nums;
}
.more{
  margin-top:16px;
  font-size:13px;
  color:var(--ink-soft);
  background:none;
  border:none;
  cursor:pointer;
  padding:0;
  font-family:inherit;
  display:flex;
  align-items:center;
  gap:4px;
}
.more:hover{ color:var(--accent); }
.more[hidden]{ display:none; }
.more .arrow{
  display:inline-block;
  font-size:11px;
}

.sr-only{
  position:absolute;
  width:1px;
  height:1px;
  padding:0;
  margin:-1px;
  overflow:hidden;
  clip:rect(0,0,0,0);
  white-space:nowrap;
  border:0;
}

.loading-state{
  color:var(--ink-soft);
  font-size:14px;
}
.books .loading-state{ font-size:14.5px; }
ul.list li.loading-state{
  border-bottom:none;
  padding:12px 0;
}

.error-state{
  margin-top:24px;
  padding:20px;
  border:1px solid var(--line);
  border-radius:8px;
  background:#fff;
  color:var(--ink-soft);
  font-size:14px;
}
.error-state p{ margin:0 0 12px; }
.error-state button{
  font-family:inherit;
  font-size:13px;
  color:var(--accent);
  background:var(--accent-soft);
  border:1px solid var(--accent);
  border-radius:20px;
  padding:6px 16px;
  cursor:pointer;
}
.error-state button:hover{ background:var(--accent); color:#fff; }

footer{
  margin-top:96px;
  padding-top:24px;
  border-top:1px solid var(--line);
  font-size:12.5px;
  color:var(--ink-soft);
}

@media (max-width:480px){
  .wrap{ padding:56px 20px 80px; }
  h1{ font-size:27px; }
  .mail-link .mail-label{ display:none; }
}