:root {
  /* 배경색: 눈부신 흰색 대신 벚꽃/라벤더 베이스의 아주 따뜻하고 밝은 톤 */
  --bg: #fdfcfd;
  --bg-2: #f6f3f8;
  
  /* 카드 및 표면: 뒤의 파스텔 색감이 은은하게 비치도록 투명도(Glassmorphism) 상향 */
  --surface: rgba(255, 255, 255, 0.65);
  --surface-solid: #ffffff;
  --surface-strong: rgba(255, 255, 255, 0.9);
  
  /* 텍스트 색상: 차가운 검정색 대신 깊은 보라빛이 도는 묵직한 색상으로 세련미 강조 */
  --text: #4a4453;
  --text-strong: #1c1525;
  --muted: #7d748c;
  
  /* 테두리 라인: 은은한 파스텔 보라색을 섞은 라인 */
  --line: rgba(168, 85, 247, 0.08);
  --line-strong: rgba(168, 85, 247, 0.16);
  
  /* 포인트 컬러: 트렌디한 파스텔 퍼플 & 핑크 조합 */
  --accent: #a855f7;   /* 화사한 퍼플 */
  --accent-2: #f472b6; /* 생기있는 파스텔 핑크 */
  --accent-3: #c084fc; /* 부드러운 라벤더 */
  
  /* 그림자: 핑크/퍼플 톤이 살짝 섞인 부드럽고 넓은 그림자 */
  --shadow: 0 16px 40px rgba(168, 85, 247, 0.06);

  --note-yellow: #fff0b6;
  --note-yellow-soft: #fff8dd;
  --note-lilac: #f2e4ff;
  --note-lilac-soft: #faf4ff;
  --note-pink: #ffe2ef;
  --note-pink-soft: #fff3f8;
  --note-shadow: 0 18px 30px rgba(128, 82, 171, 0.14);
  
  --radius-xl: 28px;
  --radius-lg: 22px;
  --radius-md: 18px;
  --radius-sm: 14px;
  --container: min(1160px, calc(100vw - 2rem));
  --container-narrow: min(980px, calc(100vw - 2rem));
  --font: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: var(--font);
  color: var(--text);
  /* 🌟 핵심: 핑크와 보라색이 오묘하게 섞이는 메쉬 그라데이션 배경 */
  background:
    radial-gradient(circle at 85% 0%, rgba(216, 180, 254, 0.3), transparent 40%), /* 우측 상단 퍼플 */
    radial-gradient(circle at 15% 30%, rgba(244, 114, 182, 0.2), transparent 45%), /* 좌측 상단 핑크 */
    radial-gradient(circle at 50% 100%, rgba(253, 164, 175, 0.15), transparent 50%), /* 하단 웜톤 피치 */
    linear-gradient(180deg, var(--bg) 0%, var(--bg-2) 100%);
  line-height: 1.72;
  letter-spacing: -0.01em;
}

/* 배경 모눈종이 패턴 (연한 보라색 라인으로 변경) */
body::before {
  content: "";
  position: fixed;
  inset: 0;
  pointer-events: none;
  background-image:
    linear-gradient(rgba(168, 85, 247, 0.035) 1px, transparent 1px),
    linear-gradient(90deg, rgba(168, 85, 247, 0.035) 1px, transparent 1px);
  background-size: 72px 72px;
  mask-image: linear-gradient(180deg, rgba(0, 0, 0, 0.2), transparent 85%);
}

body.menu-open {
  overflow: hidden;
}

a {
  color: inherit;
  text-decoration: none;
}

button, input {
  font: inherit;
}

.skip-link, .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;
}

.skip-link:focus {
  width: auto; height: auto; clip: auto; margin: 1rem; padding: 0.8rem 1rem;
  background: var(--text-strong); color: var(--bg); border-radius: 12px; z-index: 1000;
}

.container { width: var(--container); margin: 0 auto; }
.narrow-container { width: var(--container-narrow); margin: 0 auto; }

/* 상단 네비게이션 바 (Glassmorphism 적용) */
.site-header {
  position: relative; top: 0; z-index: 60; padding: 1rem 0;
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  background: linear-gradient(180deg, rgba(253, 252, 253, 0.85), rgba(253, 252, 253, 0.4));
  border-bottom: 1px solid var(--line);
}

.nav-shell { display: flex; align-items: center; justify-content: space-between; gap: 1.5rem; }

.brand { display: inline-flex; align-items: center; gap: 0.9rem; min-width: 0; }

.brand-mark {
  width: 2.8rem; height: 2.8rem; display: grid; place-items: center;
  border-radius: 1rem; font-weight: 800; color: #ffffff;
  background: linear-gradient(135deg, var(--accent), var(--accent-2));
  box-shadow: 0 8px 20px rgba(244, 114, 182, 0.35);
}

.brand-copy { display: flex; flex-direction: column; min-width: 0; }
.brand-copy strong { font-size: 1rem; color: var(--text-strong); }
.brand-copy small { color: var(--muted); }

.site-nav { display: flex; flex-wrap: wrap; gap: 1.1rem; align-items: center; color: var(--muted); font-weight: 600;}
.site-nav a { position: relative; padding: 0.35rem 0; transition: color 0.2s ease; }
.site-nav a::after {
  content: ""; position: absolute; left: 0; right: 0; bottom: -0.12rem; height: 2px;
  background: linear-gradient(90deg, var(--accent), var(--accent-2));
  transform: scaleX(0); transform-origin: left; transition: transform 0.22s ease;
}
.site-nav a:hover, .site-nav a:focus-visible, .site-nav a[aria-current="page"] { color: var(--text-strong); }
.site-nav a:hover::after, .site-nav a:focus-visible::after, .site-nav a[aria-current="page"]::after { transform: scaleX(1); }

.nav-toggle {
  display: none; width: 3rem; height: 3rem; border: 1px solid var(--line); border-radius: 1rem;
  background: var(--surface-solid); color: var(--text-strong);
  align-items: center; justify-content: center; flex-direction: column; gap: 0.28rem; cursor: pointer;
}
.nav-toggle span:not(.sr-only) { display: block; width: 1.15rem; height: 2px; background: currentColor; border-radius: 999px; }

.hero, .page-hero { position: relative; overflow: clip; }
.hero { padding: 6rem 0 4.5rem; min-height: min(860px, calc(100vh - 5rem)); }
.page-hero { padding: 5.2rem 0 2.4rem; }

/* 🌟 파스텔 톤에 어울리는 부드러운 웨이브 그래픽 */
.hero-wave {
  position: absolute; border-radius: 999px; pointer-events: none; opacity: 0.5;
  filter: saturate(140%);
  background:
    linear-gradient(135deg, rgba(168, 85, 247, 0.25), rgba(244, 114, 182, 0.2)),
    repeating-linear-gradient(90deg, rgba(255,255,255,0) 0 10px, rgba(168, 85, 247, 0.1) 10px 12px, rgba(244, 114, 182, 0.1) 12px 14px);
  mix-blend-mode: multiply;
}
.hero-wave-a { width: min(980px, 95vw); height: 340px; right: -260px; top: 60px; transform: rotate(-12deg); border: 1px solid rgba(168,85,247,0.08); }
.hero-wave-b { width: min(760px, 80vw); height: 250px; left: -220px; bottom: 30px; transform: rotate(10deg); opacity: 0.3; }

.hero-grid { position: relative; z-index: 1; display: grid; grid-template-columns: 0.95fr 1.05fr; gap: 3rem; align-items: center; }

/* 포인트 텍스트 색상 */
.eyebrow, .section-kicker, .profile-kicker, .label, .side-note-title {
  margin: 0 0 1rem; color: var(--accent); text-transform: uppercase;
  letter-spacing: 0.14em; font-size: 0.78rem; font-weight: 800;
}
.profile-kicker, .label, .side-note-title { margin-bottom: 0.35rem; display: block; }

.hero h1, .page-hero h1 {
  margin: 0; 
  max-width: 16ch; /* 글씨가 작아지면 한 줄에 들어가는 글자 수를 늘려줍니다 */
  font-size: clamp(1.8rem, 4vw, 3rem); /* ⬅️ 이 숫자들을 줄였습니다 */
  line-height: 1.1; /* 글씨가 작아지면 줄간격을 살짝 여유롭게 하는 것이 예쁩니다 */
  letter-spacing: -0.04em; 
  color: var(--text-strong);
}
.page-hero h1 { max-width: 13ch; }

.hero-text, .lead-text, .muted, .card p, .card li, .footer-shell p, .result-count, .search-field input::placeholder { color: var(--muted); }
.hero-text { margin: 1.35rem 0 0; max-width: 60ch; font-size: 1.08rem; }
.narrow-text { max-width: 58ch; }

.hero-actions, .inline-links, .tag-list, .action-row, .filter-row, .contact-actions, .chip-list, .stats-grid, .compact-links {
  display: flex; flex-wrap: wrap; gap: 0.75rem;
}

.hero-panel {
  display: grid;
  gap: 1.25rem;
}

/* Featured recent highlights */

.side-note-head {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 1rem;
  margin-bottom: 1rem;
}

.side-note-kicker {
  margin: 0 0 0.2rem;
  font-size: 0.75rem;
  font-weight: 800;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: #8b5cf6;
}

.side-note-heading {
  margin: 0;
  font-size: 1.35rem;
  line-height: 1.1;
  letter-spacing: -0.03em;
  color: #1f1730;
}

.side-note-pill {
  flex: 0 0 auto;
  padding: 0.42rem 0.78rem;
  border-radius: 999px;
  background: rgba(139, 92, 246, 0.10);
  border: 1px solid rgba(139, 92, 246, 0.18);
  color: #7c3aed;
  font-size: 0.82rem;
  font-weight: 700;
}

@media (max-width: 720px) {
  .side-note-head {
    flex-direction: column;
  }

  .highlight-item {
    grid-template-columns: 1fr;
  }
}

/* 버튼 디자인 */
.button, .filter-btn {
  display: inline-flex; align-items: center; justify-content: center; min-height: 3rem; padding: 0.8rem 1.15rem;
  border-radius: 999px; font-weight: 700; transition: all 0.2s ease;
}
.button:hover, .button:focus-visible, .filter-btn:hover, .filter-btn:focus-visible { 
  transform: translateY(-2px); 
  box-shadow: 0 6px 16px rgba(168, 85, 247, 0.12);
}

.button-primary { background: linear-gradient(135deg, var(--accent), var(--accent-2)); color: #ffffff; border: none; box-shadow: 0 8px 24px rgba(244, 114, 182, 0.3); }
.button-secondary, .filter-btn { background: var(--surface-solid); border: 1px solid var(--line-strong); color: var(--text-strong); }
.button-ghost { background: transparent; color: var(--text-strong); border: 1px solid transparent; }
.button-ghost:hover { background: rgba(168, 85, 247, 0.06); }
.button-small { min-height: 2.7rem; padding: 0.65rem 0.95rem; }

/* 칩 / 태그 스타일 */
.chip-list { list-style: none; margin: 1.2rem 0 0; padding: 0; }
.chip-list li, .tag-list span, .chip {
  background: var(--surface-solid); border: 1px solid var(--line); color: var(--text-strong);
  border-radius: 999px; padding: 0.56rem 0.86rem; font-size: 0.85rem; font-weight: 600;
}
/* 파스텔 톤 뱃지 포인트 */
.chip-accent { background: rgba(244, 114, 182, 0.08); border-color: rgba(244, 114, 182, 0.25); color: #db2777; }
.chip-soft { background: rgba(168, 85, 247, 0.08); border-color: rgba(168, 85, 247, 0.25); color: #7e22ce; }

.stats-grid { margin-top: 1.6rem; }
.stat-card {
  min-width: 11rem; padding: 1rem 1.1rem; border-radius: var(--radius-md);
  background: var(--surface-solid); border: 1px solid var(--line); box-shadow: var(--shadow);
}
.stat-card strong { display: block; font-size: 1.65rem; line-height: 1; color: var(--accent); }
.stat-card span { display: block; margin-top: 0.45rem; color: var(--muted); font-weight: 600;}

/* 카드 공통 스타일 (Glassmorphism 강화) */
.card {
  padding: 1.5rem; border-radius: var(--radius-lg);
  background: var(--surface); border: 1px solid rgba(255, 255, 255, 0.9);
  box-shadow: var(--shadow); 
  backdrop-filter: blur(24px);
  -webkit-backdrop-filter: blur(24px);
}
/* 하이라이트 글로우 카드 */
.glow-card { 
  box-shadow: var(--shadow), 0 0 0 1px rgba(244, 114, 182, 0.15), 0 16px 48px rgba(168, 85, 247, 0.12); 
}

.section { padding: 2.2rem 0 4.6rem; }
.section-alt { background: linear-gradient(180deg, rgba(168, 85, 247, 0.02), transparent); }
.no-top-gap { padding-top: 0.8rem; }

.section-head { display: grid; gap: 1rem; margin-bottom: 1.6rem; }
.split-head { grid-template-columns: 1.0fr 1.0fr; align-items: end; }
.compact-head { margin-bottom: 1rem; }

.section-head h2, .contact-card h2, .year-header h2, .empty-state h2 {
  margin: 0; font-size: clamp(2rem, 4vw, 3rem); line-height: 1.05; letter-spacing: -0.04em; color: var(--text-strong);
}
.section-head p, .lead-text { margin: 0; }

.about-grid, .two-column-layout { display: grid; grid-template-columns: 1fr 1fr; gap: 1.5rem; }
.mini-grid, .three-column-grid, .feature-grid, .project-grid { display: grid; gap: 1.2rem; }
.mini-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
.three-column-grid, .feature-grid { grid-template-columns: repeat(3, minmax(0, 1fr)); }
.project-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }

.about-card { min-height: 100%; }
.card h3 { margin: 0 0 0.8rem; font-size: 1.25rem; line-height: 1.3; color: var(--text-strong); font-weight: 800;}
.card p { margin: 0; }
.card p + p { margin-top: 0.9rem; }
.card ul { margin: 1rem 0 0; padding-left: 1.2rem; }
.card li + li { margin-top: 0.45rem; }

.card-index { display: inline-block; margin-bottom: 0.9rem; font-weight: 800; color: var(--accent-2); }

/* 텍스트 링크 포인트 색상 */
.compact-links a, .inline-links a, .text-link { color: var(--accent); font-weight: 700; transition: color 0.2s; }
.compact-links a:hover, .inline-links a:hover, .text-link:hover { color: var(--accent-2); }

.side-note ul { margin: 0.8rem 0 0; padding-left: 1.1rem; }
.compact-list li + li { margin-top: 0.55rem; }

.paper-top, .paper-card-top, .timeline-top, .project-top, .footer-shell, .contact-card {
  display: flex; justify-content: space-between; gap: 0.8rem; align-items: flex-start;
}
.paper-feature, .project-preview, .recognition-card, .timeline-card, .project-card, .paper-card { min-height: 100%; }

.authors { margin: 0.8rem 0 0; color: var(--text); }
.authors strong { color: var(--text-strong); }
.tag-list { margin-top: 1rem; }
.text-link { display: inline-flex; margin-top: 1rem; }
.stack-list, .paper-stack { display: grid; gap: 1rem; }

/* 검색 및 필터 */
.toolbar-card { position: relative; margin-bottom: 2rem; }
.search-field input {
  width: 100%; min-height: 3.25rem; padding: 0.95rem 1.2rem; border-radius: 1rem;
  border: 1px solid var(--line-strong); background: var(--surface-solid); color: var(--text-strong); outline: none; transition: all 0.2s;
}
.search-field input:focus { border-color: var(--accent); box-shadow: 0 0 0 4px rgba(168, 85, 247, 0.15); }
.filter-row { margin-top: 1rem; }
.filter-btn.is-active { background: rgba(168, 85, 247, 0.08); border-color: var(--accent); color: var(--accent); }

.result-count { margin: 1rem 0 0; font-weight: 600; color: var(--muted);}
.empty-state { text-align: center; margin-bottom: 1.2rem; }
.year-group { margin-top: 2rem; }
.year-group.is-hidden, .paper-card.is-hidden { display: none; }
.year-header { display: flex; justify-content: space-between; gap: 1rem; align-items: baseline; margin-bottom: 1rem; }
.year-header h2 { font-size: 2rem; color: var(--text-strong); }
.year-header span { color: var(--muted); font-weight: 700;}

.paper-body { position: relative; display: flex; justify-content: space-between; gap: 1rem; }

.contact-section { padding-top: 1rem; }
.contact-card { gap: 2rem; }
.site-footer { padding: 1.4rem 0 2rem; border-top: 1px solid var(--line); margin-top: 2rem;}
.footer-shell { align-items: center; }
.footer-shell p { margin: 0; }

/* =========================================================================
   우측 프로필 패널(aside)
   ========================================================================= */
.hero-panel { display: flex; flex-direction: column; gap: 1.5rem; }
.hero-panel .card { padding: 2.2rem; }

/* =========================================================================
   Recent Highlights as sticky notes
   Put this block near the end of the stylesheet
   ========================================================================= */

.hero-panel .card.side-note-featured {
  position: relative;
  overflow: visible;
  padding: 1.6rem;
  background: linear-gradient(
    180deg,
    rgba(255, 255, 255, 0.58) 0%,
    rgba(255, 255, 255, 0.82) 100%
  );
  border: 1px solid rgba(168, 85, 247, 0.14);
  box-shadow:
    0 20px 48px rgba(168, 85, 247, 0.10),
    0 0 0 1px rgba(255, 255, 255, 0.55) inset;
}

.hero-panel .card.side-note-featured::before {
  content: "";
  position: absolute;
  inset: 12px;
  border: 1px dashed rgba(168, 85, 247, 0.14);
  border-radius: calc(var(--radius-lg) - 10px);
  pointer-events: none;
}

.hero-panel .card.side-note-featured::after {
  content: "";
  position: absolute;
  inset: 0 0 auto 0;
  height: 6px;
  border-radius: var(--radius-lg) var(--radius-lg) 0 0;
  background: linear-gradient(90deg, var(--accent), var(--accent-3), var(--accent-2));
}

.hero-panel .card.side-note-featured .side-note-head {
  position: relative;
  z-index: 1;
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 1rem;
  margin-bottom: 1.2rem;
}

.hero-panel .card.side-note-featured .side-note-kicker {
  margin: 0 0 0.22rem;
  font-size: 0.78rem;
  font-weight: 800;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--accent);
}

.hero-panel .card.side-note-featured .side-note-heading {
  margin: 0;
  font-size: 1.55rem;
  line-height: 1.05;
  letter-spacing: -0.03em;
  color: var(--text-strong);
}

.hero-panel .card.side-note-featured .side-note-pill {
  flex: 0 0 auto;
  padding: 0.45rem 0.78rem;
  border-radius: 999px;
  background: linear-gradient(
    135deg,
    rgba(168, 85, 247, 0.14),
    rgba(244, 114, 182, 0.12)
  );
  border: 1px solid rgba(168, 85, 247, 0.18);
  color: #7c3aed;
  font-size: 0.82rem;
  font-weight: 800;
}

.hero-panel .card.side-note-featured .sticky-notes {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: 1.08fr 0.92fr;
  grid-template-areas:
    "note-a note-b"
    "note-a note-c";
  gap: 1rem;
  align-items: start;
}

.hero-panel .card.side-note-featured .sticky-note {
  position: relative;
  min-height: 170px;
  padding: 1.15rem 1rem 1rem;
  border-radius: 14px;
  border: 1px solid rgba(73, 49, 99, 0.08);
  box-shadow: var(--note-shadow);
  transition: transform 0.18s ease, box-shadow 0.18s ease;
}

.hero-panel .card.side-note-featured .sticky-note::before {
  content: "";
  position: absolute;
  top: -10px;
  left: 50%;
  transform: translateX(-50%) rotate(-4deg);
  width: 74px;
  height: 20px;
  border-radius: 4px;
  background: rgba(255, 255, 255, 0.62);
  border: 1px solid rgba(255, 255, 255, 0.75);
  box-shadow: 0 2px 6px rgba(0, 0, 0, 0.04);
  backdrop-filter: blur(4px);
  -webkit-backdrop-filter: blur(4px);
}

.hero-panel .card.side-note-featured .sticky-note::after {
  content: "";
  position: absolute;
  top: 0;
  right: 0;
  width: 26px;
  height: 26px;
  background: linear-gradient(
    135deg,
    rgba(255, 255, 255, 0) 50%,
    rgba(255, 255, 255, 0.55) 50%
  );
  clip-path: polygon(100% 0, 0 0, 100% 100%);
}

.hero-panel .card.side-note-featured .sticky-note:hover {
  box-shadow: 0 22px 36px rgba(168, 85, 247, 0.16);
}

.hero-panel .card.side-note-featured .sticky-note:nth-child(1) {
  grid-area: note-a;
  min-height: 230px;
  background: linear-gradient(
    180deg,
    var(--note-yellow) 0%,
    var(--note-yellow-soft) 100%
  );
  transform: rotate(-2.2deg);
}

.hero-panel .card.side-note-featured .sticky-note:nth-child(1):hover {
  transform: translateY(-4px) rotate(-1.2deg);
}

.hero-panel .card.side-note-featured .sticky-note:nth-child(2) {
  grid-area: note-b;
  background: linear-gradient(
    180deg,
    var(--note-lilac) 0%,
    var(--note-lilac-soft) 100%
  );
  transform: rotate(1.5deg);
}

.hero-panel .card.side-note-featured .sticky-note:nth-child(2):hover {
  transform: translateY(-4px) rotate(2.2deg);
}

.hero-panel .card.side-note-featured .sticky-note:nth-child(3) {
  grid-area: note-c;
  background: linear-gradient(
    180deg,
    var(--note-pink) 0%,
    var(--note-pink-soft) 100%
  );
  transform: rotate(-1.2deg);
}

.hero-panel .card.side-note-featured .sticky-note:nth-child(3):hover {
  transform: translateY(-4px) rotate(-0.4deg);
}

.hero-panel .card.side-note-featured .sticky-tag {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.4rem 0.68rem;
  border-radius: 999px;
  font-size: 0.74rem;
  font-weight: 800;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  background: rgba(28, 21, 37, 0.08);
  color: var(--text-strong);
}

.hero-panel .card.side-note-featured .sticky-tag-review {
  background: rgba(124, 58, 237, 0.12);
  color: #7c3aed;
}

.hero-panel .card.side-note-featured .sticky-tag-iclr {
  background: rgba(168, 85, 247, 0.12);
  color: #9333ea;
}

.hero-panel .card.side-note-featured .sticky-tag-cvpr {
  background: rgba(244, 114, 182, 0.12);
  color: #db2777;
}

.hero-panel .card.side-note-featured .sticky-note h4 {
  margin: 0.8rem 0 0.55rem;
  font-size: 1.12rem;
  line-height: 1.24;
  letter-spacing: -0.02em;
  color: var(--text-strong);
}

.hero-panel .card.side-note-featured .sticky-note p {
  margin: 0;
  color: #5f566f;
  line-height: 1.56;
}

@media (max-width: 720px) {
  .hero-panel .card.side-note-featured .side-note-head {
    flex-direction: column;
    align-items: flex-start;
  }

  .hero-panel .card.side-note-featured .sticky-notes {
    grid-template-columns: 1fr;
    grid-template-areas:
      "note-a"
      "note-b"
      "note-c";
  }

  .hero-panel .card.side-note-featured .sticky-note,
  .hero-panel .card.side-note-featured .sticky-note:nth-child(1),
  .hero-panel .card.side-note-featured .sticky-note:nth-child(2),
  .hero-panel .card.side-note-featured .sticky-note:nth-child(3) {
    min-height: auto;
    transform: none;
  }

  .hero-panel .card.side-note-featured .sticky-note:hover,
  .hero-panel .card.side-note-featured .sticky-note:nth-child(1):hover,
  .hero-panel .card.side-note-featured .sticky-note:nth-child(2):hover,
  .hero-panel .card.side-note-featured .sticky-note:nth-child(3):hover {
    transform: translateY(-3px);
  }
}

.profile-card { display: grid; gap: 1.2rem; }
.profile-top { display: flex; align-items: center; gap: 1.5rem; } 

.profile-avatar-img {
  flex: 0 0 auto; width: 10rem; height: 10rem; border-radius: 50%;
  object-fit: cover; box-shadow: 0 12px 32px rgba(168, 85, 247, 0.15);
  border: 4px solid #ffffff;
}

.profile-card h2 {
  font-size: 3.5rem !important; line-height: 1.1; margin-bottom: 0.3rem;
  letter-spacing: -0.04em; color: var(--text-strong);
}
.profile-card .muted { font-size: 1.15rem; line-height: 1.6; }
.profile-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 1.5rem; font-size: 1.15rem; }
.profile-grid strong, .profile-grid a { color: var(--text-strong); }
.profile-kicker, .label, .side-note-title { font-size: 1.0rem !important; }

/* =========================================================================
   논문 목록(publications.html) 가로 2단 레이아웃 및 썸네일
   ========================================================================= */
.paper-card.list-layout { display: flex; flex-direction: row; gap: 1.8rem; align-items: flex-start; }
.paper-info { flex: 1; display: flex; flex-direction: column; min-width: 0; }
.paper-info .paper-meta { margin-bottom: 0.8rem; }
.paper-image-col { display: flex; flex-direction: column; align-items: center; flex-shrink: 0; }

.paper-thumb {
  width: 22rem; height: 12.5rem; border-radius: 0.8rem; object-fit: cover;
  border: 1px solid var(--line); box-shadow: 0 4px 16px rgba(0, 0, 0, 0.06);
  background-color: var(--surface-strong);
}

.year-mark {
  font-size: 3.5rem; line-height: 1; font-weight: 800; letter-spacing: -0.05em; 
  color: rgba(168, 85, 247, 0.08); /* 연도 색상도 파스텔 퍼플 톤으로 변경 */
  user-select: none; margin-top: 0.8rem; 
}

.paper-image-wrapper {
  margin: -1.5rem -1.5rem 1.2rem -1.5rem; border-radius: var(--radius-lg) var(--radius-lg) 0 0;
  overflow: hidden; height: 160px; border-bottom: 1px solid var(--line);
}
.paper-image { width: 100%; height: 100%; object-fit: cover; display: block; transition: transform 0.4s ease; }
.paper-feature:hover .paper-image { transform: scale(1.03); }

/* =========================================================================
   반응형 처리 (Media Queries)
   ========================================================================= */
@media (max-width: 1080px) {
  .hero-grid, .about-grid, .two-column-layout, .split-head, .contact-card { grid-template-columns: 1fr; }
  .three-column-grid, .feature-grid, .project-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .contact-card { align-items: flex-start; }
}

@media (max-width: 860px) {
  .nav-toggle { display: inline-flex; }
  .site-nav {
    position: fixed; inset: 5.7rem 1rem auto; display: grid; gap: 0.5rem; padding: 1rem;
    border-radius: 1.2rem; background: rgba(255, 255, 255, 0.98);
    border: 1px solid var(--line); box-shadow: var(--shadow);
    transform: translateY(-1rem); opacity: 0; pointer-events: none;
    transition: opacity 0.2s ease, transform 0.2s ease;
  }
  .site-nav.is-open { transform: translateY(0); opacity: 1; pointer-events: auto; }
  .site-nav a { padding: 0.7rem 0.45rem; color: var(--text-strong);}
  .hero { padding-top: 4.8rem; }
  .toolbar-card { top: 5.2rem; }
}

@media (max-width: 720px) {
  :root { --container: min(100vw - 1.2rem, 100%); --container-narrow: min(100vw - 1.2rem, 100%); }
  .hero h1, .page-hero h1 { max-width: none; }
  .profile-top, .paper-top, .paper-card-top, .paper-body, .timeline-top, .project-top, .contact-card, .footer-shell, .year-header {
    flex-direction: column; align-items: flex-start;
  }
  .profile-grid, .mini-grid, .three-column-grid, .feature-grid, .project-grid { grid-template-columns: 1fr; }
  .button, .button-small { width: 100%; } 
  
  .toolbar-card { position: relative; top: 0; margin-bottom: 2rem; }
  .filter-row { flex-wrap: nowrap; overflow-x: auto; -webkit-overflow-scrolling: touch; padding-bottom: 0.5rem; gap: 0.5rem; }
  .filter-row::-webkit-scrollbar { display: none; }
  .filter-btn { width: auto; flex-shrink: 0; font-size: 0.85rem; padding: 0.5rem 0.9rem; min-height: 2.5rem; }

  .hero-wave-a { width: 140vw; right: -45vw; top: 90px; }
  .hero-wave-b { width: 120vw; left: -45vw; }
  
  .paper-card.list-layout { flex-direction: column; gap: 1.2rem; }
  .paper-image-col { width: 100%; align-items: flex-start; }
  .paper-thumb { width: 100%; height: auto; aspect-ratio: 16 / 9; margin-bottom: 0; }
  .year-mark { font-size: 3rem; margin-top: 0.5rem; margin-bottom: -1rem; }
  .hero-panel .card { padding: 1.5rem; }
}