@import url('https://fonts.googleapis.com/css2?family=Plus+Jakarta+Sans:ital,wght@0,400;0,500;0,600;0,700;0,800;1,400;1,600;1,700&display=swap');
@import url('https://cdnjs.cloudflare.com/ajax/libs/font-awesome/6.5.1/css/all.min.css');
@import url('https://cdn.jsdelivr.net/gh/jpswalsh/academicons@1/css/academicons.min.css');

:root,
html.dark-mode {
  --bg-color: #0f0f0f;
  --bg-masthead-gradient: linear-gradient(180deg, rgba(20, 20, 20, 0.88) 0%, rgba(28, 28, 28, 0.88) 100%);
  --bg-dropdown: linear-gradient(180deg, rgba(15, 15, 15, 0.97) 0%, rgba(10, 10, 10, 0.97) 100%);
  --bg-card: #161616;
  --bg-card-hover: #1e1e1e;
  --bg-glass: rgba(12, 12, 12, 0.92);
  --bg-subtle: rgba(223, 216, 204, 0.06);
  --bg-subtle-hover: rgba(223, 216, 204, 0.10);

  --border-subtle: #242424;
  --border-rule: #2e2e2e;
  --border-strong: #d6d0c4;

  --text-primary: #ffffff;
  --text-secondary: #e8e5dc;
  --text-meta: #d6d0c4;
  --link-color: #ffffff;
  --link-hover: #e0dcc7;

  --badge-bg: #1c1c1c;
  --badge-border: #2e2e2e;
  --badge-color: #ffffff;

  --accent-red: #e0dcc7;
  --accent-red-bg: rgba(224, 220, 199, 0.12);
  --accent-red-border: rgba(224, 220, 199, 0.30);

  --accent-blue: #ffffff;
  --accent-blue-bg: #1c1c1c;
  --accent-blue-border: #2e2e2e;

  --accent-gold: #e0dcc7;
  --accent-gold-bg: rgba(224, 220, 199, 0.12);
  --accent-gold-border: rgba(224, 220, 199, 0.30);

  --nav-line: #ffffff;
  --silver-gradient: linear-gradient(90deg, rgba(214, 208, 196, 0.35) 0%, rgba(214, 208, 196, 0.05) 100%);
  --timeline-line: rgba(214, 208, 196, 0.22);
  --selection-bg: #e0dcc7;
  --selection-color: #0f0f0f;

  --footer-bg: linear-gradient(180deg, #181818 0%, #101010 100%);
  --footer-border: 1.5px solid rgba(255, 255, 255, 0.12);
  --footer-border-width: 1.5px;
  --footer-border-color: rgba(255, 255, 255, 0.12);
  --masthead-border-width: 1.5px;
  --masthead-border-color: rgba(214, 208, 196, 0.22);
  --dropdown-line-width: 2px;
  --dropdown-line-color: rgba(214, 208, 196, 0.18);
  --dropdown-line-hover: rgba(255, 255, 255, 0.90);
  --masthead-shadow: 0 4px 24px rgba(0, 0, 0, 0.40), inset 0 1px 0 rgba(255, 255, 255, 0.15);
  --footer-shadow: 0 -2px 14px rgba(0, 0, 0, 0.35);
  --dropdown-shadow: 0 20px 48px rgba(0, 0, 0, 0.55), inset 0 1px 0 rgba(255, 255, 255, 0.12);
  --dropdown-line-shadow: none;
  --masthead-text: #ffffff;
  --masthead-brand-text: #ffffff;
  --dropdown-text: #ffffff;
  --dropdown-arrow: #d6d0c4;

  --input-bg: #161616;
  --input-border: #2e2e2e;
  --input-focus-border: #e0dcc7;

  --floating-bg: rgba(16, 16, 16, 0.88);
  --floating-border: rgba(224, 220, 199, 0.28);
  --floating-border-hover: rgba(224, 220, 199, 0.55);
  --floating-shadow: 0 4px 16px rgba(0, 0, 0, 0.40), inset 0 1px 0 rgba(255, 255, 255, 0.12);
  --floating-shadow-hover: 0 6px 22px rgba(0, 0, 0, 0.50), inset 0 1px 0 rgba(255, 255, 255, 0.18);
  --sun-icon-color: #e0dcc7;
  --moon-icon-color: #e0dcc7;
  --floating-text: #e0dcc7;

  --masthead-height: 66px;
  --max-width: 1320px;
  --sidebar-width: 250px;
}

html.light-mode {
  --bg-color: #ffffff;
  --bg-masthead-gradient: linear-gradient(180deg, rgba(240, 233, 218, 0.76) 0%, rgba(253, 251, 247, 0.76) 100%);
  --bg-dropdown: linear-gradient(180deg, rgba(255, 255, 255, 0.95) 0%, rgba(248, 246, 241, 0.95) 100%);
  --bg-card: #fcfbf9;
  --bg-card-hover: #f5f3ef;
  --bg-glass: rgba(255, 255, 255, 0.92);
  --bg-subtle: rgba(40, 36, 30, 0.04);
  --bg-subtle-hover: rgba(40, 36, 30, 0.08);

  --border-subtle: #eae5dc;
  --border-rule: #dcd4c6;
  --border-strong: #4a443b;

  --text-primary: #121110;
  --text-secondary: #22201d;
  --text-meta: #3c3935;
  --link-color: #121110;
  --link-hover: #84611f;

  --badge-bg: #f5f3ef;
  --badge-border: #dcd4c6;
  --badge-color: #121110;

  --accent-red: #84611f;
  --accent-red-bg: rgba(132, 97, 31, 0.08);
  --accent-red-border: rgba(132, 97, 31, 0.28);

  --accent-blue: #121110;
  --accent-blue-bg: #f5f3ef;
  --accent-blue-border: #dcd4c6;

  --accent-gold: #84611f;
  --accent-gold-bg: rgba(132, 97, 31, 0.08);
  --accent-gold-border: rgba(132, 97, 31, 0.28);

  --nav-line: #121110;
  --silver-gradient: linear-gradient(90deg, rgba(70, 60, 48, 0.28) 0%, rgba(70, 60, 48, 0.05) 100%);
  --timeline-line: rgba(70, 60, 48, 0.20);
  --selection-bg: #84611f;
  --selection-color: #ffffff;

  --footer-bg: linear-gradient(180deg, #d4c7ad 0%, #e3d7c0 100%);
  --footer-border: 1.5px solid rgba(110, 80, 25, 0.25);
  --footer-border-width: 1.5px;
  --footer-border-color: rgba(110, 80, 25, 0.25);
  --masthead-border-width: 1.5px;
  --masthead-border-color: rgba(132, 97, 31, 0.22);
  --dropdown-line-width: 2px;
  --dropdown-line-color: rgba(60, 50, 38, 0.14);
  --dropdown-line-hover: #6d533b;
  --masthead-shadow: 0 4px 20px rgba(40, 32, 20, 0.06), inset 0 1px 0 rgba(255, 255, 255, 0.65);
  --footer-shadow: 0 -2px 14px rgba(40, 32, 20, 0.06);
  --dropdown-shadow: 0 20px 44px rgba(40, 32, 20, 0.10), inset 0 1px 0 rgba(255, 255, 255, 0.95);
  --dropdown-line-shadow: none;
  --masthead-text: #121110;
  --masthead-brand-text: #121110;
  --dropdown-text: #121110;
  --dropdown-arrow: #3c3935;

  --input-bg: #ffffff;
  --input-border: #dcd4c6;
  --input-focus-border: #84611f;

  --floating-bg: rgba(255, 255, 255, 0.82);
  --floating-border: rgba(60, 50, 38, 0.20);
  --floating-border-hover: rgba(132, 97, 31, 0.60);
  --floating-shadow: 0 4px 14px rgba(0, 0, 0, 0.08), inset 0 1px 0 rgba(255, 255, 255, 0.95);
  --floating-shadow-hover: 0 6px 18px rgba(0, 0, 0, 0.14), inset 0 1px 0 rgba(255, 255, 255, 1);
  --sun-icon-color: #121110;
  --moon-icon-color: #121110;
  --floating-text: #121110;
}

::-moz-selection {
  color: var(--selection-color);
  background: var(--selection-bg);
}

::selection {
  color: var(--selection-color);
  background: var(--selection-bg);
}

*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

body, button, input, select, textarea {
  font-family: 'Plus Jakarta Sans', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
}

html {
  font-size: 16px;
  background-color: var(--bg-color);
  color: var(--text-primary);
  scroll-behavior: smooth;
}

body {
  background-color: var(--bg-color);
  color: var(--text-primary);
  font-weight: 500;
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  width: 100%;
  min-height: 100vh;
  overflow-x: hidden;
}

*, *::before, *::after {
  overflow-wrap: break-word;
  word-wrap: break-word;
}

img, .author__avatar img, .exp-logo-box img, .exp-role-icon img {
  max-width: 100%;
}

a {
  color: var(--link-color);
  text-decoration: underline;
  text-underline-offset: 3px;
  text-decoration-color: var(--border-rule);
  transition: all 0.18s ease;
  overflow-wrap: anywhere;
}

a:hover {
  color: var(--link-hover);
  text-decoration-color: var(--link-hover);
}

h1, h2, h3, h4, h5, h6 {
  color: var(--text-primary);
  font-weight: 700;
  line-height: 1.3;
  margin-top: 1.5em;
  margin-bottom: 0.5em;
}

h1 {
  font-size: 2.15rem;
  font-weight: 800;
  letter-spacing: -0.015em;
}

h2 {
  font-size: 1.55rem;
  font-weight: 700;
  padding-bottom: 0.4em;
  margin-top: 2.4rem;
  margin-bottom: 1.15rem;
}

h3 {
  font-size: 1.25rem;
  font-weight: 700;
  margin-top: 1.5rem;
}

h4 {
  font-size: 1.10rem;
  font-weight: 700;
  margin-top: 1.2rem;
}

p {
  margin-bottom: 1.25rem;
  font-size: 1.05rem;
  color: var(--text-primary);
}

strong {
  color: var(--text-primary);
  font-weight: 700;
}

em {
  font-style: italic;
  color: var(--text-secondary);
}

ul, ol {
  margin-bottom: 1.25rem;
  padding-left: 1.4rem;
}

li {
  margin-bottom: 0.45rem;
  font-size: 1.02rem;
  color: var(--text-primary);
}

hr.silver-line {
  border: none;
  height: 2px;
  background: var(--silver-gradient);
  margin: 2.25rem 0 1.75rem 0;
}

.masthead {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: var(--masthead-height);
  background: var(--bg-masthead-gradient);
  backdrop-filter: blur(18px) saturate(150%);
  -webkit-backdrop-filter: blur(18px) saturate(150%);
  border-bottom: var(--masthead-border-width, 1.5px) solid var(--masthead-border-color);
  box-shadow: var(--masthead-shadow);
  z-index: 2001;
  transition: all 0.25s ease;
}

.masthead__inner-wrap {
  max-width: var(--max-width);
  height: 100%;
  margin: 0 auto;
  padding: 0 1.5rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.masthead__brand {
  position: relative;
  display: flex;
  align-items: baseline;
  gap: 8px;
  text-decoration: none;
  color: var(--masthead-brand-text, var(--text-primary));
  padding: 6px 10px;
  flex-shrink: 0;
  transition: opacity 0.25s ease;
}

.masthead__brand::before {
  content: "";
  position: absolute;
  left: 0;
  bottom: 0;
  height: 3.5px;
  background: var(--masthead-brand-text, var(--nav-line));
  width: 100%;
  -webkit-transition: transform 0.25s ease;
  transition: transform 0.25s ease;
  -webkit-transform: scaleX(0);
  -ms-transform: scaleX(0);
  transform: scaleX(0);
}

.masthead__brand:hover::before {
  -webkit-transform: scaleX(1);
  -ms-transform: scaleX(1);
  transform: scaleX(1);
}

.masthead__brand:hover {
  opacity: 0.95;
}

.masthead__brand-name {
  font-size: 1.18rem;
  font-weight: 800;
  letter-spacing: -0.015em;
  color: var(--masthead-brand-text, var(--text-primary));
  line-height: 1.15;
  white-space: nowrap;
}

.masthead__brand-kr {
  display: inline-block;
  font-size: 0.95rem;
  font-weight: 600;
  color: var(--text-meta, var(--text-secondary));
  white-space: nowrap;
}

.masthead__nav {
  display: flex;
  align-items: center;
  justify-content: flex-end;
  flex: 1;
}

.masthead__links {
  display: flex;
  flex-wrap: nowrap;
  justify-content: flex-end;
  align-items: center;
  list-style: none;
  padding: 0;
  margin: 0;
  column-gap: 2px;
  max-width: 960px;
}

.masthead__item {
  position: relative;
  margin: 0;
  flex-shrink: 0;
}

.masthead__item a {
  display: block;
  padding: 7px 12px;
  font-size: 1rem;
  font-weight: 600;
  color: var(--masthead-text, var(--text-primary));
  text-decoration: none;
  letter-spacing: -0.005em;
  white-space: nowrap;
  transition: color 0.2s ease;
  position: relative;
}

.masthead__item a::before {
  content: "";
  position: absolute;
  left: 0;
  bottom: 0;
  height: 3.5px;
  background: var(--masthead-text, var(--nav-line));
  width: 100%;
  -webkit-transition: transform 0.25s ease;
  transition: transform 0.25s ease;
  -webkit-transform: scaleX(0);
  -ms-transform: scaleX(0);
  transform: scaleX(0);
}

.masthead__item a:hover::before {
  -webkit-transform: scaleX(1);
  -ms-transform: scaleX(1);
  transform: scaleX(1);
}

.masthead__item a:hover {
  color: var(--masthead-brand-text, var(--text-primary));
}

.masthead__item.active a {
  color: var(--masthead-brand-text, var(--text-primary));
  font-weight: 700;
}

.masthead__item.active a::before {
  -webkit-transform: scaleX(1);
  -ms-transform: scaleX(1);
  transform: scaleX(1);
}

.masthead__toggle-btn {
  display: none;
  background: transparent;
  border: none;
  border-radius: 0;
  padding: 8px 6px;
  cursor: pointer;
  color: var(--masthead-brand-text, var(--text-primary));
  transition: opacity 0.18s ease;
  line-height: 0;
}

.masthead__toggle-btn:hover {
  background: transparent;
  opacity: 0.8;
}

.masthead__toggle-icon {
  display: flex;
  flex-direction: column;
  gap: 5.5px;
  width: 26px;
}

.masthead__toggle-icon span {
  display: block;
  height: 2.5px;
  width: 100%;
  background-color: var(--masthead-brand-text, var(--text-primary));
  border-radius: 2px;
  transition: transform 0.28s cubic-bezier(0.16, 1, 0.3, 1), opacity 0.2s ease;
}

.masthead__toggle-btn.is-open .masthead__toggle-icon span:nth-child(1) {
  transform: translateY(8px) rotate(45deg);
}
.masthead__toggle-btn.is-open .masthead__toggle-icon span:nth-child(2) {
  opacity: 0;
  transform: scaleX(0);
}
.masthead__toggle-btn.is-open .masthead__toggle-icon span:nth-child(3) {
  transform: translateY(-8px) rotate(-45deg);
}

.mobile-nav-overlay {
  position: fixed;
  top: var(--masthead-height);
  left: 0;
  right: 0;
  bottom: 0;
  height: calc(100vh - var(--masthead-height));
  height: calc(100dvh - var(--masthead-height));
  background: var(--bg-dropdown);
  backdrop-filter: blur(24px) saturate(140%);
  -webkit-backdrop-filter: blur(24px) saturate(140%);
  border-bottom: var(--masthead-border-width, 2.5px) solid var(--masthead-border-color);
  box-shadow: var(--dropdown-shadow, 0 16px 36px rgba(0, 0, 0, 0.45));
  z-index: 2000;
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
  overflow: hidden;
  transition: opacity 0.22s ease, visibility 0s linear 0.22s;
}

.mobile-nav-overlay.is-active {
  opacity: 1;
  visibility: visible;
  pointer-events: auto;
  transition: opacity 0.22s ease, visibility 0s linear 0s;
}

.mobile-nav-body {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  width: 100%;
  height: 100%;
  background: transparent;
  padding: 1.25rem 1.5rem 1.5rem 1.5rem;
  box-sizing: border-box;
  display: flex;
  flex-direction: column;
  transform: translateY(-8px);
  transition: transform 0.22s cubic-bezier(0.16, 1, 0.3, 1);
}

.mobile-nav-overlay.is-active .mobile-nav-body {
  transform: translateY(0);
}

.mobile-nav-list {
  list-style: none;
  padding: 0;
  margin: 0;
  width: 100%;
  height: 100%;
  display: flex;
  flex-direction: column;
}

.mobile-nav-item {
  flex: 1;
  display: flex;
  align-items: stretch;
  min-height: 0;
}

.mobile-nav-item a {
  width: 100%;
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 4px;
  font-size: clamp(1.02rem, 2.5vh, 1.25rem);
  font-weight: 700;
  letter-spacing: -0.015em;
  white-space: nowrap;
  color: var(--dropdown-text, var(--text-primary));
  text-decoration: none;
  background: transparent;
  border: none;
  border-bottom: var(--dropdown-line-width, 2px) solid var(--dropdown-line-color);
  box-shadow: var(--dropdown-line-shadow, none);
  border-radius: 0;
  transition: color 0.18s ease, padding-left 0.18s ease, border-bottom-color 0.18s ease;
}

.mobile-nav-item:last-child a {
  border-bottom: none;
  box-shadow: none;
}

.mobile-nav-item a::after {
  content: "→";
  font-size: 1.05rem;
  font-weight: 400;
  color: var(--dropdown-arrow, var(--text-meta));
  transition: transform 0.2s ease, color 0.2s ease;
  margin-left: 8px;
  flex-shrink: 0;
}

.mobile-nav-item a:hover,
.mobile-nav-item.active a {
  color: var(--masthead-brand-text, var(--text-primary));
  background: transparent;
  border-bottom-color: var(--dropdown-line-hover);
  padding-left: 8px;
}

.mobile-nav-item a:hover::after,
.mobile-nav-item.active a::after {
  color: var(--masthead-brand-text, var(--text-primary));
  transform: translateX(5px);
}

@media screen and (max-height: 520px) {
  .mobile-nav-body {
    padding: 0.6rem 1.75rem 0.8rem 1.75rem;
  }

  .mobile-nav-list {
    display: grid;
    grid-template-columns: 1fr 1fr;
    column-gap: 2.5rem;
    height: 100%;
  }

  .mobile-nav-item {
    display: flex;
    align-items: stretch;
    min-height: 0;
  }

  .mobile-nav-item a {
    font-size: 1.05rem;
    padding: 0 4px;
    border-bottom: var(--dropdown-line-width, 2px) solid var(--dropdown-line-color);
  }

  .mobile-nav-item:nth-last-child(-n+2) a {
    border-bottom: none;
  }

  .mobile-nav-item a::after {
    font-size: 1rem;
  }
}

#main {
  max-width: var(--max-width);
  margin: 0 auto;
  padding-top: calc(var(--masthead-height) + 2.5rem);
  padding-bottom: 4rem;
  padding-left: 2rem;
  padding-right: 2rem;
  display: flex;
  gap: 3rem;
  align-items: flex-start;
  min-height: calc(100vh - 180px);
}

.sidebar {
  width: var(--sidebar-width);
  flex-shrink: 0;
}

.sidebar.sticky {
  position: -webkit-sticky;
  position: sticky;
  top: calc(var(--masthead-height) + 2.5rem);
  max-height: calc(100vh - var(--masthead-height) - 4rem);
  overflow-y: auto;
  scrollbar-width: none;
}

.sidebar.sticky::-webkit-scrollbar {
  display: none;
}

.author__avatar {
  margin-bottom: 0.85rem;
}

.author__avatar img {
  width: 175px;
  height: auto;
  aspect-ratio: 1 / 1;
  object-fit: cover;
  border-radius: 25%;
  border: 2px solid var(--border-rule);
  display: block;
}

.author__content {
  margin-bottom: 0.75rem;
}

.author__name {
  font-size: 1.32rem;
  font-weight: 800;
  color: var(--text-primary);
  margin-top: 0;
  margin-bottom: 0.2rem;
  letter-spacing: -0.01em;
}

.author__korean {
  font-size: 0.92rem;
  font-weight: 600;
  color: var(--text-secondary);
  margin-bottom: 0;
}

.author__connect-btn {
  display: none;
}

.author__urls-wrapper {
  border-top: 1px solid var(--border-subtle);
  padding-top: 0.75rem;
  margin-top: 0.25rem;
}

.author__urls {
  list-style: none;
  padding: 0;
  margin: 0;
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.author__urls li,
.author__urls li a {
  font-size: 0.88rem;
  color: var(--text-primary);
  margin: 0;
  padding: 0;
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-weight: 500;
  line-height: 1.4;
}

.author__urls li i,
.author__urls li a i {
  width: 18px;
  text-align: center;
  color: var(--text-primary);
  font-size: 0.95rem;
  flex-shrink: 0;
}

.author__urls li a {
  color: var(--text-primary);
  text-decoration: underline;
  text-decoration-color: var(--border-rule);
  transition: all 0.15s ease;
  width: 100%;
}

.author__urls li a:hover {
  color: var(--link-hover);
  text-decoration-color: var(--link-hover);
}

.sidebar .author__desktop {
  display: none !important;
}

@media screen and (min-width: 925px) {
  .sidebar .author__desktop {
    display: flex !important;
  }
}

.page {
  flex: 1;
  min-width: 0;
}

.page__inner-wrap {
  width: 100%;
}

.page__title,
.page__content > h1:first-child,
.page__content > *:first-child {
  margin-top: 0 !important;
}

.page__title,
.page__content > h1:first-child {
  font-size: 2.15rem;
  font-weight: 800;
  color: var(--text-primary);
  line-height: 1.2;
  margin-bottom: 1.25rem;
  letter-spacing: -0.015em;
}

.page__content {
  font-size: 1.06rem;
  line-height: 1.75;
}

.page-view {
  display: none;
}

.page-view.active-view {
  display: block;
  animation: pageFadeIn 0.22s ease both;
}

@keyframes pageFadeIn {
  from { opacity: 0; transform: translateY(4px); }
  to { opacity: 1; transform: translateY(0); }
}

.structured-list {
  list-style: none;
  padding: 0;
  margin: 1rem 0 2rem 0;
  display: flex;
  flex-direction: column;
}

.structured-list li {
  position: relative;
  padding: 0.85rem 0 0.85rem 1.6rem;
  font-size: 0.95rem;
  color: var(--text-secondary);
  line-height: 1.6;
  border-bottom: 1.5px solid var(--border-subtle);
}

.structured-list li:first-child {
  padding-top: 0.4rem;
}

.structured-list li:last-child {
  border-bottom: none;
}

.structured-list li::before {
  content: "•";
  position: absolute;
  left: 0.25rem;
  top: 0.85rem;
  color: var(--text-primary);
  font-size: 1.1rem;
  line-height: 1;
}

.structured-list li strong {
  color: var(--text-primary);
}

.structured-list li i {
  color: var(--text-primary);
  margin-right: 6px;
}

.photo-strip {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
  gap: 1.5rem;
  margin: 2rem 0;
}

.photo-card {
  display: flex;
  flex-direction: column;
}

.photo-img-wrap {
  aspect-ratio: 16 / 10;
  overflow: hidden;
  border-radius: 8px;
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
}

.photo-img-wrap img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
  transition: transform 0.25s ease;
}

.photo-card:hover .photo-img-wrap img {
  transform: scale(1.02);
}

.photo-caption {
  padding: 0.75rem 0 0 0;
  line-height: 1.45;
}

.photo-title {
  font-size: 1.03rem;
  font-weight: 700;
  color: var(--text-primary);
  line-height: 1.35;
  margin-bottom: 0.35rem;
}

.photo-desc {
  font-size: 0.97rem;
  font-weight: 500;
  color: var(--text-secondary);
  line-height: 1.45;
}

.exp-section {
  margin-top: 1.5rem;
}

.labs-container {
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
  margin: 1.5rem 0 2.5rem 0;
}

.lab-card {
  position: relative;
  background: var(--bg-card);
  border: 1.5px solid var(--border-rule);
  border-radius: 12px;
  padding: 1.6rem;
  transition: border-color 0.2s ease, background 0.2s ease, transform 0.2s ease;
}

.lab-card:hover {
  background: var(--bg-card-hover);
}

.lab-card-header {
  display: grid;
  grid-template-columns: 56px minmax(0, 1fr);
  gap: 16px;
  align-items: center;
  margin-bottom: 1rem;
}

.lab-logo-box {
  width: 56px;
  height: 56px;
  border-radius: 10px;
  border: 2px solid var(--border-rule);
  background: var(--bg-subtle);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.lab-logo-box i {
  font-size: 1.5rem;
  color: var(--text-primary);
}

.lab-header-copy {
  min-width: 0;
}

.lab-name {
  margin: 0;
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--text-primary);
  line-height: 1.3;
}

.lab-directors {
  margin-top: 4px;
  font-size: 0.9rem;
  font-style: italic;
  color: var(--text-meta);
  line-height: 1.45;
}

.lab-body {
  margin-top: 0.25rem;
}

.lab-desc {
  font-size: 0.95rem;
  color: var(--text-secondary);
  line-height: 1.65;
  margin-bottom: 1.15rem;
}

.lab-contact-box {
  background: var(--bg-card);
  border: 1.5px solid var(--border-rule);
  border-radius: 12px;
  padding: 1.5rem;
  margin-top: 1.25rem;
  transition: border-color 0.2s ease, background 0.2s ease;
}

.exp-org {
  position: relative;
  margin-bottom: 2.25rem;
}

.exp-org::before {
  content: "";
  position: absolute;
  left: 29px;
  top: 62px;
  bottom: 20px;
  width: 2px;
  background: var(--timeline-line);
}

.exp-org-header {
  display: grid;
  grid-template-columns: 60px minmax(0, 1fr);
  gap: 18px;
  align-items: start;
}

.exp-logo-box {
  width: 60px;
  height: 60px;
  overflow: hidden;
  background: var(--bg-card);
  box-sizing: border-box;
  border-radius: 10px;
  border: 2px solid var(--border-rule);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.exp-logo-box img {
  width: 100%;
  height: 100%;
  object-fit: contain;
  background: transparent;
  display: block;
}

.light-logo {
  display: none !important;
}
.dark-logo {
  display: block !important;
}
html.light-mode .dark-logo {
  display: none !important;
}
html.light-mode .light-logo {
  display: block !important;
}
html.dark-mode .light-logo {
  display: none !important;
}
html.dark-mode .dark-logo {
  display: block !important;
}

.exp-logo-box img[src*="corporate"],
.exp-role-icon img[src*="corporate"],
.exp-logo-box img[src*="startup"],
.exp-role-icon img[src*="startup"],
.exp-logo-box img[src*="tech_startups"],
.exp-role-icon img[src*="tech_startups"] {
  background: transparent !important;
  border-radius: 8px;
}

.exp-logo-box img[src*="stanford" i],
.exp-role-icon img[src*="stanford" i],
.exp-logo-box img[src*="hyundai" i],
.exp-role-icon img[src*="hyundai" i],
.exp-logo-box img[src*="kia" i],
.exp-role-icon img[src*="kia" i],
.exp-logo-box img[src*="cj" i],
.exp-role-icon img[src*="cj" i] {
  padding: 4px;
  box-sizing: border-box;
}

html.dark-mode .exp-logo-box:has(img[src*="stanford" i]),
html.dark-mode .exp-role-icon:has(img[src*="stanford" i]),
html.dark-mode .exp-logo-box:has(img[src*="hyundai" i]),
html.dark-mode .exp-role-icon:has(img[src*="hyundai" i]),
html.dark-mode .exp-logo-box:has(img[src*="kia" i]),
html.dark-mode .exp-role-icon:has(img[src*="kia" i]),
html.dark-mode .exp-logo-box:has(img[src*="cj" i]),
html.dark-mode .exp-role-icon:has(img[src*="cj" i]) {
  background: #ffffff !important;
}

html.dark-mode .exp-logo-box img[src*="stanford" i],
html.dark-mode .exp-role-icon img[src*="stanford" i],
html.dark-mode .exp-logo-box img[src*="hyundai" i],
html.dark-mode .exp-role-icon img[src*="hyundai" i],
html.dark-mode .exp-logo-box img[src*="kia" i],
html.dark-mode .exp-role-icon img[src*="kia" i],
html.dark-mode .exp-logo-box img[src*="cj" i],
html.dark-mode .exp-role-icon img[src*="cj" i] {
  background: #ffffff !important;
  border-radius: 6px;
}

.exp-logo-box i {
  font-size: 1.6rem;
  color: var(--text-primary);
}

.exp-org-copy {
  padding-top: 2px;
  min-width: 0;
}

.exp-org-name {
  margin: 0;
  font-size: 1.2rem;
  line-height: 1.3;
  font-weight: 700;
  color: var(--text-primary);
}

.exp-org-range {
  margin: 4px 0 0 0;
  font-size: 0.9em;
  font-style: italic;
  color: var(--text-meta);
  line-height: 1.45;
}

.exp-role-list {
  margin-top: 12px;
}

.exp-role-row {
  display: grid;
  grid-template-columns: 60px minmax(0, 1fr);
  gap: 18px;
  align-items: start;
  padding: 14px 0;
}

.exp-role-row + .exp-role-row {
  border-top: 1.5px solid var(--border-subtle);
}

.exp-role-marker {
  display: flex;
  justify-content: center;
  padding-top: 18px;
  position: relative;
  z-index: 1;
}

.exp-role-dot {
  width: 11px;
  height: 11px;
  border-radius: 50%;
  background: var(--text-primary);
  border: 2px solid var(--bg-color);
  box-shadow: 0 0 0 2px var(--border-rule);
}

.exp-role-main {
  display: grid;
  grid-template-columns: 49px minmax(0, 1fr);
  gap: 14px;
  align-items: start;
  min-width: 0;
}

.exp-role-icon {
  width: 49px;
  height: 49px;
  flex-shrink: 0;
  overflow: hidden;
  background: var(--bg-card);
  box-sizing: border-box;
  border-radius: 10px;
  border: 1.5px solid var(--border-rule);
  display: flex;
  align-items: center;
  justify-content: center;
}

.exp-role-icon img {
  width: 100%;
  height: 100%;
  object-fit: contain;
  background: transparent;
  display: block;
}

.exp-role-icon img[src*="corporate"] {
  background: transparent;
}

.exp-role-icon i {
  font-size: 1.25rem;
  color: var(--text-primary);
}

.exp-role-copy {
  min-width: 0;
}

.exp-role-title {
  margin: 0;
  font-size: 1.05em;
  line-height: 1.3;
  font-weight: 700;
  color: var(--text-primary);
}

.exp-role-sub {
  margin: 3px 0 0 0;
  font-size: 0.92em;
  line-height: 1.35;
  color: var(--text-secondary);
}

.exp-role-date {
  margin: 3px 0 0 0;
  font-size: 0.85em;
  font-style: italic;
  color: var(--text-meta);
  line-height: 1.45;
}

.exp-desc {
  margin-top: 8px;
}

.exp-desc p {
  font-size: 0.94rem;
  color: var(--text-primary);
  line-height: 1.6;
  margin-bottom: 0.4rem;
}

.exp-bullets {
  list-style: disc;
  padding-left: 1.25rem;
  margin-top: 0.5rem;
}

.exp-bullets li {
  font-size: 0.92rem;
  color: var(--text-secondary);
  margin-bottom: 0.35rem;
}

.structured-entries {
  margin: 1.25rem 0 2rem 0;
  display: flex;
  flex-direction: column;
}

.structured-entry {
  padding: 1.15rem 0;
  border-bottom: 1.5px solid var(--border-subtle);
}

.structured-entry:first-child {
  padding-top: 0.4rem;
}

.structured-entry:last-child {
  border-bottom: none;
}

.structured-entry-title {
  font-size: 1.08rem;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 0.45rem;
  display: flex;
  align-items: center;
  gap: 10px;
}

.structured-entry-title i {
  color: var(--text-primary);
  font-size: 1rem;
}

.structured-entry-meta {
  font-size: 0.88rem;
  color: var(--text-meta);
  font-style: italic;
  margin-bottom: 0.45rem;
}

.structured-entry p {
  font-size: 0.94rem;
  color: var(--text-secondary);
  line-height: 1.6;
  margin: 0;
}

.structured-framework {
  margin: 1rem 0 2rem 0;
}

.pub-search-wrapper {
  position: relative;
  width: 100%;
  margin: 1.5rem 0;
}

.pub-search-input {
  width: 100%;
  background: var(--input-bg);
  border: 1px solid var(--input-border);
  box-shadow: 0 2px 10px rgba(0, 0, 0, 0.04);
  color: var(--text-primary);
  padding: 13px 44px 13px 44px;
  border-radius: 10px;
  font-size: 0.95rem;
  outline: none;
  transition: all 0.2s ease;
}

.pub-search-input::placeholder {
  color: var(--text-meta);
}

.pub-search-input:focus {
  border-color: var(--input-focus-border);
  box-shadow: 0 0 0 3px var(--border-subtle);
  background: var(--bg-card);
}

.pub-search-icon {
  position: absolute;
  left: 16px;
  top: 50%;
  transform: translateY(-50%);
  color: var(--text-meta);
  pointer-events: none;
  z-index: 2;
  display: flex;
  align-items: center;
  justify-content: center;
  line-height: 1;
}

.pub-search-icon svg {
  width: 16px;
  height: 16px;
  display: block;
}

.pub-search-clear {
  position: absolute;
  right: 14px;
  top: 50%;
  transform: translateY(-50%);
  background: transparent;
  border: none;
  color: var(--text-meta);
  font-size: 1rem;
  cursor: pointer;
  padding: 4px;
  line-height: 1;
  z-index: 2;
  display: none;
}

.pub-search-meta {
  font-size: 0.88rem;
  color: var(--text-meta);
  margin-top: 0.5rem;
  font-style: italic;
}

.crosslink-note {
  margin: 0.65rem 0 1.5rem 0;
}

.crosslink-note a {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 0.94rem;
  font-weight: 600;
  color: var(--text-primary);
  text-decoration: none;
  transition: opacity 0.2s ease;
}

.crosslink-note a:hover {
  opacity: 0.85;
}

.crosslink-note a i {
  color: var(--text-primary);
  font-size: 0.9rem;
  text-decoration: none;
  display: inline-block;
  flex-shrink: 0;
}

.crosslink-note a span {
  text-decoration: underline;
  text-underline-offset: 4px;
  text-decoration-color: var(--border-rule);
  transition: text-decoration-color 0.2s ease;
}

.crosslink-note a:hover span {
  text-decoration-color: var(--text-primary);
}

.pub-entry {
  position: relative;
  padding: 0.45rem 0 0.45rem 1.5rem;
  border: none;
}

.pub-entry::before {
  content: "•";
  position: absolute;
  left: 0.2rem;
  top: 0.45rem;
  color: var(--text-primary);
  font-size: 1.1rem;
  line-height: 1;
}

.pub-entry:first-child {
  padding-top: 0.45rem;
}

.pub-entry-title {
  font-size: 1.08rem;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 0.35rem;
  line-height: 1.35;
}

.pub-entry-authors {
  font-size: 0.92rem;
  color: var(--text-primary);
  margin-bottom: 0.25rem;
  line-height: 1.5;
}

.pub-entry-venue {
  font-size: 0.88rem;
  color: var(--text-primary);
  margin-bottom: 0.5rem;
  line-height: 1.45;
}

.pub-entry-desc {
  font-size: 0.9rem;
  color: var(--text-primary);
  line-height: 1.6;
  margin: 0.5rem 0 0.75rem 0;
}

.pub-entry-badges {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  align-items: center;
  margin-top: 0.5rem;
}

.pub-entry-links {
  margin-top: 0.5rem;
  font-size: 0.92rem;
  color: var(--text-meta);
  line-height: 1.5;
}

.pub-entry-links a {
  color: var(--text-primary);
  text-decoration: underline;
  text-underline-offset: 3px;
  font-weight: 500;
  transition: color 0.15s ease;
}

.pub-entry-links a:hover {
  color: var(--link-color, #C8102E);
}

.pub-cite-note {
  font-size: 0.88rem;
  color: var(--text-meta);
}

.pub-badge-type {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  font-size: 0.78rem;
  font-weight: 600;
  color: var(--accent-blue);
  background: var(--accent-blue-bg);
  border: 1px solid var(--accent-blue-border);
  padding: 2px 8px;
  border-radius: 4px;
}

.pub-badge-cite {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  font-size: 0.78rem;
  font-weight: 600;
  color: var(--accent-gold);
  background: var(--accent-gold-bg);
  border: 1px solid var(--accent-gold-border);
  padding: 2px 9px;
  border-radius: 4px;
}

.pub-badge-cite i {
  color: var(--accent-gold);
}

.pub-badge-link {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  font-size: 0.78rem;
  font-weight: 600;
  color: var(--text-primary);
  text-decoration: none;
  background: var(--bg-card);
  border: 1px solid var(--border-rule);
  padding: 3px 10px;
  border-radius: 6px;
  transition: all 0.18s ease;
}

.pub-badge-link:hover {
  background: var(--text-primary);
  border-color: var(--text-primary);
  color: var(--bg-color);
}

.pub-badge-doi {
  color: var(--text-primary);
  background: var(--bg-card);
  border: 1px solid var(--border-rule);
}

.pub-badge-doi:hover {
  background: var(--accent-gold);
  border-color: var(--accent-gold);
  color: var(--bg-color);
}

.media-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 8px;
}

.pub-entry:hover,
.exp-org:hover,
.lab-card:hover,
.lab-logo-box:hover,
.lab-contact-box:hover,
.exp-logo-box:hover,
.exp-role-icon:hover,
.recognition-entry:hover,
.structured-entry:hover,
.award-entry:hover,
.patent-entry:hover,
.media-entry:hover,
.keynote-entry:hover {
  border-color: var(--border-strong) !important;
}

.patents-list {
  margin: 1.25rem 0 2.25rem 0;
  display: flex;
  flex-direction: column;
}

.patent-entry {
  padding: 1.15rem 0;
  border-bottom: 1.5px solid var(--border-subtle);
}

.patent-entry:first-child {
  padding-top: 0.4rem;
}

.patent-entry:last-child {
  border-bottom: none;
}

.patent-entry-header {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 0.4rem;
  flex-wrap: wrap;
}

.patent-number-badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 0.8rem;
  font-weight: 700;
  color: var(--accent-red);
  background: var(--accent-red-bg);
  border: 1px solid var(--accent-red-border);
  padding: 2px 9px;
  border-radius: 4px;
}

.patent-number-badge i {
  color: var(--accent-red);
  font-size: 0.8rem;
}

.patent-date {
  font-size: 0.85rem;
  color: var(--text-meta);
  font-style: italic;
}

.patent-entry-title {
  font-size: 1.05rem;
  font-weight: 700;
  color: var(--text-primary);
  line-height: 1.35;
  margin: 0.25rem 0 0.5rem 0;
}

.patent-link {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 0.82rem;
  font-weight: 600;
  color: var(--accent-red);
  text-decoration: none;
  padding: 3px 10px;
  border-radius: 4px;
  background: var(--accent-red-bg);
  border: 1px solid var(--accent-red-border);
  transition: all 0.18s ease;
}

.patent-link:hover {
  background: var(--accent-red);
  border-color: var(--accent-red);
  color: #ffffff;
}

.recognition-list {
  margin: 1.25rem 0 2rem 0;
  display: flex;
  flex-direction: column;
  list-style: none;
  padding: 0;
}

.recognition-entry {
  position: relative;
  padding: 0.45rem 0 0.45rem 1.5rem;
  border: none;
}

.recognition-entry::before {
  content: "•";
  position: absolute;
  left: 0.2rem;
  top: 0.45rem;
  color: var(--text-primary);
  font-size: 1.1rem;
  line-height: 1;
}

.recognition-entry:first-child {
  padding-top: 0.45rem;
}

.recognition-entry:last-child {
  border-bottom: none;
}

.recognition-entry-header {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 0.45rem;
  flex-wrap: wrap;
}

.recognition-badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 0.78rem;
  font-weight: 700;
  color: var(--badge-color);
  background: var(--badge-bg);
  border: 1px solid var(--badge-border);
  padding: 2px 9px;
  border-radius: 4px;
}

.recognition-badge i {
  color: var(--accent-gold);
  font-size: 0.8rem;
}

.recognition-title {
  font-size: 1.05rem;
  font-weight: 700;
  color: var(--text-primary);
  line-height: 1.35;
}

.recognition-desc {
  font-size: 0.95rem;
  color: var(--text-primary);
  line-height: 1.6;
  margin-bottom: 0;
}

.talks-timeline {
  position: relative;
  margin: 1.75rem 0 2.5rem 0;
  padding-left: 32px;
}

.talks-timeline::before {
  content: "";
  position: absolute;
  left: 11px;
  top: 10px;
  bottom: 10px;
  width: 2px;
  background: var(--timeline-line);
}

.talk-item {
  position: relative;
  margin-bottom: 1.35rem;
}

.talk-marker {
  position: absolute;
  left: -32px;
  top: 12px;
  width: 24px;
  height: 24px;
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 2;
}

.talk-dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: var(--text-primary);
  border: 2px solid var(--bg-color);
  box-shadow: 0 0 0 2px var(--border-rule);
}

.talk-card {
  background: transparent;
  border: none;
  border-bottom: 1.5px solid var(--border-subtle);
  border-radius: 0;
  padding: 0 0 1.25rem 0;
  box-shadow: none;
  backdrop-filter: none;
  -webkit-backdrop-filter: none;
}

.talk-item:last-child .talk-card {
  border-bottom: none;
}

.talk-header {
  display: flex;
  align-items: center;
  justify-content: flex-start;
  gap: 12px;
  margin-bottom: 0.35rem;
  flex-wrap: wrap;
}

.talk-date-badge {
  font-size: 0.8rem;
  font-weight: 700;
  color: var(--accent-blue);
  background: var(--accent-blue-bg);
  border: 1px solid var(--accent-blue-border);
  padding: 2px 9px;
  border-radius: 4px;
  letter-spacing: 0.02em;
}

.talk-type-badge {
  font-size: 0.75rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--text-meta);
}

.talk-title {
  font-size: 1.05rem;
  font-weight: 700;
  color: var(--text-primary);
  line-height: 1.35;
  margin-bottom: 0.35rem;
}

.talk-venue {
  font-size: 0.9rem;
  color: var(--text-secondary);
  line-height: 1.5;
  display: flex;
  align-items: baseline;
  gap: 8px;
}

.talk-venue i {
  font-size: 0.85rem;
  color: var(--text-meta);
  flex-shrink: 0;
}

.people-list {
  margin: 1.25rem 0 2rem 0;
  display: flex;
  flex-direction: column;
}

.people-entry {
  padding: 1.15rem 0;
  border-bottom: 1.5px solid var(--border-subtle);
}

.people-entry:first-child {
  padding-top: 0.4rem;
}

.people-entry:last-child {
  border-bottom: none;
}

.people-entry-header {
  display: flex;
  align-items: center;
  gap: 14px;
  margin-bottom: 0.5rem;
}

.people-entry-avatar {
  width: 38px;
  height: 38px;
  border-radius: 50%;
  background: var(--bg-subtle);
  border: 1px solid var(--border-rule);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1rem;
  color: var(--text-primary);
  flex-shrink: 0;
}

.people-entry-name {
  font-size: 1.05rem;
  font-weight: 700;
  color: var(--text-primary);
  line-height: 1.3;
}

.people-entry-role {
  font-size: 0.84rem;
  color: var(--text-meta);
  font-style: italic;
}

.people-entry-bio {
  font-size: 0.92rem;
  color: var(--text-secondary);
  line-height: 1.6;
  margin: 0;
  padding-left: 52px;
}

.media-list {
  display: flex;
  flex-direction: column;
  margin: 1.25rem 0 2rem 0;
}

.media-entry {
  background: transparent;
  border: none;
  border-bottom: 1.5px solid var(--border-subtle);
  border-radius: 0;
  padding: 1.15rem 0;
  box-shadow: none;
  backdrop-filter: none;
  -webkit-backdrop-filter: none;
  transition: none;
}

.media-entry:first-child {
  padding-top: 0.4rem;
}

.media-entry:last-child {
  border-bottom: none;
}

.media-header {
  display: flex;
  align-items: center;
  justify-content: flex-start;
  gap: 10px;
  margin-bottom: 0.35rem;
  flex-wrap: wrap;
}

.media-source {
  font-size: 0.8rem;
  font-weight: 700;
  color: var(--accent-red);
  background: var(--accent-red-bg);
  border: 1px solid var(--accent-red-border);
  padding: 2px 9px;
  border-radius: 4px;
}

.media-title {
  font-size: 1.05rem;
  font-weight: 700;
  color: var(--text-primary);
  line-height: 1.35;
  margin-bottom: 0.35rem;
}

.media-desc {
  font-size: 0.92rem;
  color: var(--text-secondary);
  line-height: 1.6;
  margin-bottom: 0;
}

.page__footer {
  width: 100%;
  margin-top: 3rem;
  background: var(--footer-bg);
  backdrop-filter: blur(12px) saturate(130%);
  -webkit-backdrop-filter: blur(12px) saturate(130%);
  border-top: var(--footer-border-width, 1.5px) solid var(--footer-border-color);
  box-shadow: var(--footer-shadow);
  padding: 1.5rem 0;
  color: #FFFFFF !important;
}

.page__footer footer {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 2rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 0.88rem;
  color: #FFFFFF !important;
}

.page__footer .footer__left {
  color: #E8E5DC !important;
}

.page__footer .footer__left strong {
  color: #FFFFFF !important;
}

.page__footer .footer__right {
  font-size: 0.84rem;
  color: #FFFFFF !important;
}

html.light-mode .page__footer {
  color: #1e1b17 !important;
}

html.light-mode .page__footer footer {
  color: #1e1b17 !important;
}

html.light-mode .page__footer .footer__left {
  color: #2e2820 !important;
}

html.light-mode .page__footer .footer__left strong {
  color: #12100d !important;
}

html.light-mode .page__footer .footer__right {
  color: #3a3227 !important;
  font-weight: 600;
}

@media screen and (max-width: 1220px) {
  .masthead__item a {
    padding: 6px 9px;
    font-size: 0.94rem;
  }
}

@media screen and (max-width: 1080px) {
  .masthead__item a {
    padding: 6px 6px;
    font-size: 0.86rem;
  }
}

@media screen and (max-width: 980px) {
  .masthead__links {
    display: none;
  }

  .masthead__toggle-btn {
    display: flex;
    align-items: center;
    justify-content: center;
  }

  #main {
    flex-direction: column;
    padding-top: calc(var(--masthead-height) + 1.2rem);
    padding-left: 1rem;
    padding-right: 1rem;
    gap: 1.5rem;
  }

  .sidebar,
  .sidebar.sticky {
    width: 100% !important;
    position: static !important;
    top: auto !important;
    border-bottom: 1px solid var(--border-subtle);
    padding-bottom: 1.2rem;
    margin-bottom: 0.5rem;
  }

  .sidebar-profile-box {
    display: flex;
    align-items: center;
    justify-content: space-between;
    width: 100%;
    gap: 12px;
  }

  .author__avatar {
    width: 52px;
    height: 52px;
    margin-bottom: 0;
    flex-shrink: 0;
  }

  .author__avatar img {
    width: 52px;
    height: 52px;
    border-radius: 25%;
    border-width: 1.5px;
  }

  .author__content {
    margin-bottom: 0;
    flex: 1;
    min-width: 0;
  }

  .author__name {
    font-size: 1.15rem;
    margin: 0;
    line-height: 1.2;
  }

  .author__korean {
    font-size: 0.85rem;
    margin: 0;
  }

  .author__connect-btn {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    background: var(--floating-bg);
    border: 1.5px solid var(--floating-border);
    color: var(--floating-text, var(--text-primary));
    font-size: 0.88rem;
    font-weight: 700;
    padding: 0.5rem 1rem;
    border-radius: 14px;
    cursor: pointer;
    white-space: nowrap;
    box-shadow: var(--floating-shadow);
    backdrop-filter: blur(20px) saturate(140%);
    -webkit-backdrop-filter: blur(20px) saturate(140%);
    transition: all 0.2s cubic-bezier(0.16, 1, 0.3, 1);
  }

  .author__connect-btn:hover {
    border-color: var(--floating-border-hover);
    box-shadow: var(--floating-shadow-hover);
    transform: translateY(-2px);
  }

  .author__urls-wrapper {
    display: block;
    max-height: 0;
    overflow: hidden;
    margin-top: 0;
    padding-top: 0;
    padding-bottom: 0;
    padding-left: 1rem;
    padding-right: 1rem;
    opacity: 0;
    border: 1px solid transparent;
    border-radius: 8px;
    background: var(--bg-glass);
    backdrop-filter: blur(24px);
    -webkit-backdrop-filter: blur(24px);
    transform: translateY(-8px);
    transition: max-height 0.65s cubic-bezier(0.4, 0, 0.2, 1),
                opacity 0.45s ease,
                transform 0.5s cubic-bezier(0.4, 0, 0.2, 1),
                margin 0.4s ease,
                padding 0.4s ease,
                border-color 0.4s ease;
  }

  .author__urls-wrapper.is-expanded {
    max-height: 550px;
    opacity: 1;
    transform: translateY(0);
    margin-top: 1rem;
    padding-top: 1rem;
    padding-bottom: 1rem;
    border-color: var(--border-rule);
  }

  .exp-org::before {
    left: 23px;
    top: 50px;
    bottom: 18px;
  }

  .exp-org-header,
  .exp-role-row {
    grid-template-columns: 48px minmax(0, 1fr);
    gap: 14px;
  }

  .exp-logo-box {
    width: 48px;
    height: 48px;
  }

  .exp-role-marker {
    padding-top: 19px;
  }

  .exp-role-main {
    grid-template-columns: 40px minmax(0, 1fr);
    gap: 12px;
  }

  .exp-role-icon {
    width: 40px;
    height: 40px;
  }

  .dti-cols {
    grid-template-columns: 1fr;
  }

  .page__title {
    font-size: 1.85rem;
  }

  .page__footer footer {
    flex-direction: column;
    align-items: flex-start;
    gap: 0.5rem;
  }
}

.jump-to-top {
  position: fixed;
  bottom: 96px;
  right: 22px;
  z-index: 999;
  background: none !important;
  border: none !important;
  cursor: pointer;
  padding: 0;
  width: 58px;
  height: 58px;
  opacity: 0 !important;
  visibility: hidden;
  pointer-events: none !important;
  transform: translateY(8px);
  transition: opacity 0.3s ease, transform 0.3s cubic-bezier(0.16, 1, 0.3, 1), visibility 0.3s ease;
}

.jump-to-top.visible {
  opacity: 1 !important;
  visibility: visible;
  pointer-events: auto !important;
  transform: translateY(0);
}

.jump-to-top .jtt-container {
  width: 100%;
  height: 100%;
  border-radius: 17px;
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: transform 0.2s cubic-bezier(0.16, 1, 0.3, 1), box-shadow 0.2s ease, border-color 0.2s ease;
  background: var(--floating-bg);
  backdrop-filter: blur(20px) saturate(140%);
  -webkit-backdrop-filter: blur(20px) saturate(140%);
  box-shadow: var(--floating-shadow);
  border: 1.5px solid var(--floating-border);
  will-change: transform;
}

.jump-to-top .jtt-container:hover {
  transform: translateY(-2px);
  border-color: var(--floating-border-hover);
  box-shadow: var(--floating-shadow-hover);
}

.jump-to-top .jtt-arrow {
  width: 24px;
  height: 24px;
  stroke: var(--sun-icon-color);
  stroke-width: 2.5;
  fill: none;
  stroke-linecap: round;
  stroke-linejoin: round;
  transition: stroke 0.2s ease;
}

.theme-toggle {
  position: fixed;
  bottom: 26px;
  right: 22px;
  z-index: 999;
  background: none;
  border: none;
  cursor: pointer;
  padding: 0;
  width: 58px;
  height: 58px;
}

.theme-toggle .sun-moon-container {
  width: 100%;
  height: 100%;
  border-radius: 17px;
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--floating-bg);
  backdrop-filter: blur(20px) saturate(140%);
  -webkit-backdrop-filter: blur(20px) saturate(140%);
  box-shadow: var(--floating-shadow);
  border: 1.5px solid var(--floating-border);
  will-change: transform;
  transition: transform 0.2s cubic-bezier(0.16, 1, 0.3, 1), box-shadow 0.2s ease, border-color 0.2s ease;
}

.theme-toggle .sun-moon-container:hover {
  transform: translateY(-2px);
  border-color: var(--floating-border-hover);
  box-shadow: var(--floating-shadow-hover);
}

.theme-toggle .icon {
  position: absolute;
  fill: none;
  stroke: currentColor;
  stroke-width: 2;
  width: 30px;
  height: 30px;
  transition: opacity 0.3s ease, transform 0.3s cubic-bezier(0.34, 1.56, 0.64, 1);
  opacity: 0;
  transform: scale(0.7) rotate(-30deg);
}

.theme-toggle .icon.visible {
  opacity: 1;
  transform: scale(1) rotate(0deg);
}

.theme-toggle .icon.sun {
  stroke: var(--sun-icon-color);
}

.theme-toggle .icon.moon {
  stroke: var(--moon-icon-color);
}

@media screen and (max-width: 768px) {
  .jump-to-top {
    bottom: 82px;
    right: 16px;
    width: 50px;
    height: 50px;
  }
  .theme-toggle {
    bottom: 20px;
    right: 16px;
    width: 50px;
    height: 50px;
  }
  .jump-to-top .jtt-container,
  .theme-toggle .sun-moon-container {
    border-radius: 15px;
  }
  .jump-to-top .jtt-arrow {
    width: 22px;
    height: 22px;
  }
  .theme-toggle .icon {
    width: 26px;
    height: 26px;
  }
}

/* --------------------------------------------------------------------------
   LinkedIn Feed Section (Responsive Masonry Grid)
   -------------------------------------------------------------------------- */
.linkedin-feed-section {
  margin-top: 3.5rem;
  padding-top: 2rem;
  border-top: 1.5px solid var(--border-rule);
  width: 100%;
  box-sizing: border-box;
}

.linkedin-feed-header {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 1.25rem;
  margin-bottom: 2rem;
  flex-wrap: wrap;
}

.linkedin-feed-title-wrap {
  flex: 1 1 300px;
}

.linkedin-feed-title {
  font-size: 1.45rem;
  font-weight: 700;
  margin: 0 0 0.35rem 0;
  border-bottom: none;
  padding-bottom: 0;
}

.linkedin-feed-subtitle {
  margin: 0;
  font-size: 0.92rem;
  color: var(--text-meta);
}

/* --------------------------------------------------------------------------
   Feed View Toggle Pill (LinkedIn vs Image)
   -------------------------------------------------------------------------- */
.feed-view-toggle-wrap {
  display: inline-flex;
  align-items: center;
  flex-shrink: 0;
}

.feed-view-toggle-pill {
  display: inline-flex;
  align-items: center;
  background: var(--floating-bg);
  backdrop-filter: blur(20px) saturate(140%);
  -webkit-backdrop-filter: blur(20px) saturate(140%);
  box-shadow: var(--floating-shadow);
  border: 1.5px solid var(--floating-border);
  border-radius: 9999px;
  padding: 3px;
  gap: 3px;
  user-select: none;
  transition: border-color 0.2s ease, box-shadow 0.2s ease, transform 0.2s cubic-bezier(0.16, 1, 0.3, 1);
}

.feed-view-toggle-pill:hover {
  border-color: var(--floating-border-hover);
  box-shadow: var(--floating-shadow-hover);
}

.feed-toggle-btn {
  background: transparent;
  border: none;
  outline: none;
  cursor: pointer;
  padding: 6px 14px;
  border-radius: 9999px;
  font-family: inherit;
  font-size: 0.82rem;
  font-weight: 700;
  letter-spacing: 0.04em;
  color: var(--text-meta);
  transition: all 0.2s cubic-bezier(0.16, 1, 0.3, 1);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  line-height: 1;
}

.feed-toggle-btn:hover {
  color: var(--text-primary);
}

.feed-toggle-btn.active {
  background: var(--bg-card-hover);
  color: var(--text-primary);
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.22), inset 0 1px 0 rgba(255, 255, 255, 0.12);
}

html.light-mode .feed-toggle-btn.active {
  background: #FFFFFF;
  color: #121110;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.08), inset 0 1px 0 rgba(255, 255, 255, 0.95);
}

/* Mode-based View Toggle */
#linkedin-updates[data-feed-view="images"] .linkedin-feed-header {
  justify-content: flex-end;
  margin-bottom: 1.5rem;
}

#linkedin-updates[data-feed-view="images"] .linkedin-feed-title-wrap,
#linkedin-updates[data-feed-view="images"] #linkedinContainer,
#linkedin-updates[data-feed-view="images"] .linkedin-feed-actions {
  display: none !important;
}

#linkedin-updates[data-feed-view="images"] #imagesGalleryContainer {
  display: grid !important;
}

#linkedin-updates:not([data-feed-view="images"]) #imagesGalleryContainer {
  display: none !important;
}

/* --------------------------------------------------------------------------
   Biography Images Gallery
   -------------------------------------------------------------------------- */
.biography-images-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.5rem;
  width: 100%;
  box-sizing: border-box;
  margin-bottom: 2rem;
}

.bio-image-card {
  width: 100%;
  overflow: hidden;
  border-radius: 10px;
  border: 1px solid var(--border-rule);
  background: var(--bg-card);
  box-shadow: 0 4px 14px rgba(0, 0, 0, 0.08);
  transition: transform 0.25s ease, box-shadow 0.25s ease;
}

.bio-image-card:hover {
  transform: translateY(-3px);
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.14);
}

.bio-image-card img {
  display: block;
  width: 100%;
  height: 100%;
  aspect-ratio: 16 / 10;
  object-fit: cover;
  object-position: center;
  transition: transform 0.3s ease;
}

.bio-image-card:hover img {
  transform: scale(1.02);
}

@media screen and (max-width: 924px) and (min-width: 601px) {
  .biography-images-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 1.25rem;
  }
}

@media screen and (max-width: 600px) {
  .linkedin-feed-header {
    flex-direction: column;
    align-items: flex-start;
    gap: 1rem;
  }
  #linkedin-updates[data-feed-view="images"] .linkedin-feed-header {
    align-items: flex-end;
  }
  .biography-images-grid {
    grid-template-columns: 1fr;
    gap: 1.25rem;
  }
}

/* LinkedIn Embed Item & Responsive Sizing */
.linkedin-embed-item {
  width: 100%;
  max-width: 504px;
  margin: 0 auto 1.5rem auto;
  break-inside: avoid;
  box-sizing: border-box;
}

.linkedin-embed-item.is-initially-hidden {
  display: none;
}

.linkedin-embed-item iframe {
  width: 100% !important;
  max-width: 100% !important;
  border: none !important;
  background: transparent !important;
  display: block;
  box-sizing: border-box;
}

/* Desktop: 2-column Masonry (seamlessly handles varying iframe heights) */
.linkedin-feed--grid {
  column-count: 2;
  column-gap: 1.5rem;
  width: 100%;
  box-sizing: border-box;
}

/* Mobile & Small Screens: Single-column vertical flow, re-forms on resize */
@media screen and (max-width: 860px) {
  .linkedin-feed--grid {
    column-count: 1 !important;
    display: block !important;
    width: 100% !important;
  }

  .linkedin-embed-item {
    width: 100% !important;
    max-width: 100% !important;
    margin: 0 0 1.5rem 0 !important;
  }

  .linkedin-embed-item iframe {
    width: 100% !important;
    max-width: 100% !important;
  }
}

/* ==========================================================================
   Research Labs Link Heading Styling
   ========================================================================== */
.lab-title-link {
  color: inherit;
  text-decoration: none;
  display: inline-block;
  transition: color 0.2s ease;
}

.lab-title-link:hover,
.lab-title-link:focus-visible {
  color: var(--link-hover);
  text-decoration: none;
}

/* ==========================================================================
   Floating Version Switcher Pill (Bottom Left)
   ========================================================================== */
.version-toggle-pill {
  display: none !important;
}

.version-toggle-pill:hover {
  border-color: var(--floating-border-hover);
  box-shadow: var(--floating-shadow-hover);
}

.version-btn {
  background: transparent;
  border: none;
  outline: none;
  cursor: pointer;
  padding: 7px 15px;
  border-radius: 9999px;
  font-family: inherit;
  font-size: 0.82rem;
  font-weight: 700;
  letter-spacing: 0.04em;
  color: var(--text-meta);
  transition: all 0.2s cubic-bezier(0.16, 1, 0.3, 1);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  line-height: 1;
}

.version-btn:hover {
  color: var(--text-primary);
}

.version-btn.active {
  background: var(--bg-card-hover);
  color: var(--text-primary);
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.22), inset 0 1px 0 rgba(255, 255, 255, 0.12);
}

html.light-mode .version-btn.active {
  background: #FFFFFF;
  color: #121110;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.08), inset 0 1px 0 rgba(255, 255, 255, 0.95);
}

/* ==========================================================================
   Version 1 Layout (Default: No Sidebar, Stretched Content, 3-Column LinkedIn Feed)
   ========================================================================== */
html:not([data-version="v2"]) .sidebar,
[data-version="v1"] .sidebar {
  display: none !important;
}

html:not([data-version="v2"]) #main,
[data-version="v1"] #main {
  display: block !important;
  max-width: var(--max-width);
  padding-left: 2rem;
  padding-right: 2rem;
}

html:not([data-version="v2"]) .page,
[data-version="v1"] .page {
  width: 100% !important;
  max-width: 100% !important;
}

html:not([data-version="v2"]) .page__inner-wrap,
[data-version="v1"] .page__inner-wrap {
  width: 100% !important;
  max-width: 100% !important;
}

@media screen and (min-width: 1100px) {
  html:not([data-version="v2"]) .linkedin-feed--grid,
  [data-version="v1"] .linkedin-feed--grid {
    column-count: 3 !important;
    column-gap: 1.5rem;
  }
}

@media screen and (max-width: 1099px) and (min-width: 861px) {
  html:not([data-version="v2"]) .linkedin-feed--grid,
  [data-version="v1"] .linkedin-feed--grid {
    column-count: 2 !important;
    column-gap: 1.5rem;
  }
}

@media screen and (max-width: 860px) {
  html:not([data-version="v2"]) #main,
  [data-version="v1"] #main {
    padding-left: 1rem;
    padding-right: 1rem;
  }
  html:not([data-version="v2"]) .linkedin-feed--grid,
  [data-version="v1"] .linkedin-feed--grid {
    column-count: 1 !important;
  }
}

/* ==========================================================================
   Version 2 Layout (Classic Layout: With Profile Sidebar)
   ========================================================================== */
[data-version="v2"] .sidebar {
  display: block !important;
}

@media screen and (min-width: 981px) {
  [data-version="v2"] #main {
    display: flex !important;
    gap: 3rem;
    align-items: flex-start;
  }
}