/* ============ Minimal academic theme ============ */
:root {
  --bg: #ffffff;
  --text: #1c1c1c;
  --muted: #6b6b6b;
  --accent: #1e5e3f;        /* 포인트 컬러 — 취향대로 교체 (딥그린) */
  --accent-soft: #e8f1ec;
  --border: #e4e6e4;
  --card: #f8faf8;
  --serif: "Noto Sans KR", "Inter", -apple-system, system-ui, sans-serif; /* 제목용 (고딕) */
  --sans: "Inter", "Noto Sans KR", -apple-system, system-ui, sans-serif;
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #15141a;
    --text: #e8e6e3;
    --muted: #9a97a0;
    --accent: #8fcaa8;
    --accent-soft: #1e2a23;
    --border: #2b2f2c;
    --card: #1b1f1c;
  }
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: var(--sans);
  font-size: 16px;
  line-height: 1.65;
}

.container {
  max-width: 720px;
  margin: 0 auto;
  padding: 48px 20px 32px;
}

h1, h2, h3 { font-family: var(--serif); font-weight: 700; line-height: 1.25; }
h1 { font-size: 2rem; margin: 0 0 4px; }
h2 {
  font-size: 1.3rem;
  margin: 48px 0 16px;
  padding-bottom: 6px;
  border-bottom: 1px solid var(--border);
}

p { text-wrap: pretty; }

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

/* ============ Hero ============ */
.hero {
  display: flex;
  gap: 28px;
  align-items: flex-start;
}
.portrait {
  width: 140px;
  height: 140px;
  object-fit: cover;
  border-radius: 10px;
  flex-shrink: 0;
  border: 1px solid var(--border);
  cursor: default;
}
.name-ko { font-size: 1.1rem; color: var(--muted); font-weight: 400; margin-left: 6px; }
.tagline { margin: 2px 0 10px; color: var(--muted); }
.bio-short { margin: 0 0 14px; }
.links { display: flex; flex-wrap: wrap; gap: 8px 18px; font-size: 0.95rem; font-weight: 500; }

@media (max-width: 540px) {
  .hero { flex-direction: column; align-items: center; text-align: center; }
  .links { justify-content: center; }
}

/* ============ News ============ */
.news-list { list-style: none; padding: 0; margin: 0; }
.news-list li { margin-bottom: 8px; }
.news-list time {
  font-variant-numeric: tabular-nums;
  color: var(--muted);
  font-size: 0.88rem;
  margin-right: 12px;
  white-space: nowrap;
}

/* ============ Publications ============ */
.pub-year {
  font-family: var(--serif);
  font-size: 1.05rem;
  color: var(--muted);
  margin: 26px 0 10px;
}
.pub-card {
  padding: 0;
  margin-bottom: 22px;
}
.pub-title { font-family: var(--serif); font-size: 1.05rem; font-weight: 600; margin: 0 0 4px; }
.pub-authors { margin: 0 0 2px; font-size: 0.92rem; }
.pub-authors .me { font-weight: 600; }
.pub-venue { margin: 0 0 8px; font-size: 0.88rem; color: var(--muted); font-style: italic; }
.pub-desc { margin: 6px 0 10px; font-size: 0.92rem; color: var(--text); }
.pub-links { display: flex; gap: 8px; flex-wrap: wrap; }
.pub-links a {
  font-size: 0.8rem;
  font-weight: 600;
  padding: 2px 10px;
  border: 1px solid var(--accent);
  border-radius: 999px;
}
.pub-links a:hover { background: var(--accent); color: var(--bg); text-decoration: none; }

/* ============ Work Experience ============ */
.exp-list { list-style: none; padding: 0; margin: 0; }
.exp-list li {
  display: flex;
  gap: 20px;
  margin-bottom: 20px;
}
.exp-period {
  flex-shrink: 0;
  width: 120px;
  color: var(--muted);
  font-size: 0.88rem;
  font-variant-numeric: tabular-nums;
  padding-top: 2px;
}
.exp-body h3 { margin: 0 0 2px; font-size: 1rem; }
.exp-org { margin: 0 0 4px; font-size: 0.92rem; color: var(--accent); font-weight: 500; }
.exp-desc { margin: 0; font-size: 0.9rem; color: var(--muted); }
@media (max-width: 540px) {
  .exp-list li { flex-direction: column; gap: 2px; }
  .exp-period { width: auto; }
}

/* ============ Footer ============ */
footer {
  margin-top: 64px;
  padding-top: 20px;
  border-top: 1px solid var(--border);
  display: flex;
  justify-content: space-between;
  align-items: center;
  color: var(--muted);
  font-size: 0.85rem;
}
.paw {
  opacity: 0.3;
  font-size: 1.35rem;
  transition: opacity 0.3s, transform 0.3s;
  text-decoration: none;
}
.paw:hover { opacity: 1; transform: rotate(-20deg) scale(1.3); text-decoration: none; }

/* ============ Lab page ============ */
.lab-header { text-align: center; margin-bottom: 40px; }
.lab-header h1 { font-size: 1.8rem; }
.lab-header p { color: var(--muted); }
.member-grid {
  display: grid;
  grid-template-columns: 1fr; /* 항상 1열 — 화면이 넓어도 멤버는 한 명씩 */
  gap: 20px;
  max-width: 440px;
  margin: 0 auto;
}
.member {
  padding: 10px 0;
  text-align: center;
}
.member img {
  width: 150px;
  height: 150px;
  object-fit: cover;
  border-radius: 50%;
  border: 3px solid var(--accent-soft);
  margin-bottom: 12px;
}
.member h3 { margin: 0 0 2px; font-size: 1.1rem; }
.member .role { color: var(--accent); font-size: 0.88rem; font-weight: 600; margin: 0 0 8px; }
.member .desc { font-size: 0.88rem; color: var(--muted); margin: 0; }
.member .desc + .desc { margin-top: 6px; }
.governance {
  margin: 44px auto 0;
  max-width: 480px;
  padding-top: 18px;
  border-top: 1px solid var(--border);
  font-size: 0.85rem;
  color: var(--muted);
  text-align: center;
}
.back-home { display: inline-block; margin-top: 36px; }

/* 이모지 커서 트레일 (lab 페이지) */
.emoji-trail {
  position: fixed;
  pointer-events: none;
  z-index: 9999;
  font-size: 1.2rem;
  transform: translate(-50%, -50%);
  animation: emoji-float 1s ease-out forwards;
}
@keyframes emoji-float {
  from { opacity: 1; transform: translate(-50%, -50%) rotate(0deg); }
  to   { opacity: 0; transform: translate(calc(-50% + var(--dx, 0px)), -130%) rotate(var(--rot, 0deg)); }
}