:root {
  color-scheme: light;
  --bg: #f7f8f7;
  --bg-elevated: rgba(255,255,255,.84);
  --surface: #ffffff;
  --surface-2: #eef4f2;
  --ink: #10232b;
  --ink-2: #40545b;
  --muted: #687a80;
  --line: rgba(16,35,43,.13);
  --line-strong: rgba(16,35,43,.22);
  --brand: #0d655f;
  --brand-strong: #084b55;
  --accent: #d77743;
  --accent-soft: #f6e3d7;
  --teal-soft: #d8f2ec;
  --shadow-sm: 0 10px 30px rgba(16,35,43,.07);
  --shadow-lg: 0 30px 80px rgba(16,35,43,.14);
  --radius-sm: 14px;
  --radius: 24px;
  --radius-lg: 36px;
  --shell: min(1180px, calc(100vw - 40px));
  --header-height: 76px;
  --ease: cubic-bezier(.2,.8,.2,1);
}
html[data-theme="dark"] {
  color-scheme: dark;
  --bg: #071116;
  --bg-elevated: rgba(9,24,30,.82);
  --surface: #0d1d24;
  --surface-2: #10292d;
  --ink: #e9f2f1;
  --ink-2: #b7c8c9;
  --muted: #83999c;
  --line: rgba(219,241,238,.12);
  --line-strong: rgba(219,241,238,.23);
  --brand: #69d7c7;
  --brand-strong: #9ae9dc;
  --accent: #efa36f;
  --accent-soft: #3c2a22;
  --teal-soft: #123b38;
  --shadow-sm: 0 12px 32px rgba(0,0,0,.22);
  --shadow-lg: 0 36px 90px rgba(0,0,0,.35);
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: calc(var(--header-height) + 24px); }
body { margin: 0; min-width: 320px; background: var(--bg); color: var(--ink); font-family: Inter, Pretendard, "Noto Sans KR", ui-sans-serif, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif; font-size: 16px; line-height: 1.65; text-rendering: optimizeLegibility; -webkit-font-smoothing: antialiased; transition: background .25s ease, color .25s ease; }
body::before { content: ""; position: fixed; inset: 0; z-index: -2; pointer-events: none; background: radial-gradient(circle at 12% 8%, rgba(91,204,185,.12), transparent 28rem), radial-gradient(circle at 88% 20%, rgba(215,119,67,.09), transparent 30rem); }
a { color: inherit; text-decoration-color: color-mix(in srgb, var(--brand) 50%, transparent); text-underline-offset: .18em; }
a:hover { color: var(--brand); }
img { display: block; max-width: 100%; }
button, input { font: inherit; }
button { color: inherit; }
svg { width: 1.15em; height: 1.15em; fill: none; stroke: currentColor; stroke-width: 1.8; stroke-linecap: round; stroke-linejoin: round; }
.sr-only { position: absolute !important; width: 1px !important; height: 1px !important; padding: 0 !important; margin: -1px !important; overflow: hidden !important; clip: rect(0,0,0,0) !important; white-space: nowrap !important; border: 0 !important; }
.skip-link { position: fixed; z-index: 999; left: 18px; top: -60px; padding: 10px 14px; background: var(--ink); color: var(--bg); border-radius: 10px; transition: top .2s; }
.skip-link:focus { top: 12px; }
.shell { width: var(--shell); margin-inline: auto; }
.section-pad { padding: 112px 0; }
.section-tint { background: color-mix(in srgb, var(--surface-2) 62%, transparent); border-block: 1px solid var(--line); }
.eyebrow { margin: 0 0 14px; color: var(--brand); font-size: .76rem; font-weight: 800; letter-spacing: .16em; text-transform: uppercase; }
.text-gradient { color: transparent; background: linear-gradient(115deg, var(--brand-strong), var(--brand) 52%, var(--accent)); -webkit-background-clip: text; background-clip: text; }
h1, h2, h3, p { margin-top: 0; }
h1, h2, h3 { line-height: 1.12; letter-spacing: -.035em; }
h1 { font-size: clamp(3.1rem, 6vw, 5.3rem); }
h2 { font-size: clamp(2.2rem, 4.2vw, 4rem); }
h3 { font-size: 1.35rem; }

.site-header { position: sticky; top: 0; z-index: 100; height: var(--header-height); border-bottom: 1px solid transparent; background: var(--bg-elevated); backdrop-filter: blur(18px) saturate(140%); -webkit-backdrop-filter: blur(18px) saturate(140%); transition: border-color .2s, box-shadow .2s; }
.site-header.is-scrolled { border-color: var(--line); box-shadow: 0 8px 35px rgba(10,36,43,.06); }
.header-inner { height: 100%; display: flex; align-items: center; gap: 28px; }
.brand { display: inline-flex; align-items: center; gap: 11px; text-decoration: none; color: var(--ink); white-space: nowrap; }
.brand:hover { color: var(--ink); }
.brand-mark { display: grid; place-items: center; width: 39px; height: 39px; border-radius: 13px; background: linear-gradient(135deg, #0a3d4a, #19a395); color: #fff; font-weight: 850; font-size: .78rem; letter-spacing: -.03em; box-shadow: 0 8px 18px rgba(13,101,95,.2); }
.brand-text { font-size: 1.02rem; letter-spacing: -.015em; }
.desktop-nav { margin-left: auto; display: flex; align-items: center; gap: 30px; }
.desktop-nav a { position: relative; color: var(--ink-2); font-size: .91rem; font-weight: 650; text-decoration: none; }
.desktop-nav a::after { content: ""; position: absolute; left: 0; right: 100%; bottom: -8px; height: 2px; background: var(--brand); transition: right .25s var(--ease); }
.desktop-nav a:hover, .desktop-nav a[aria-current="page"] { color: var(--ink); }
.desktop-nav a:hover::after, .desktop-nav a[aria-current="page"]::after { right: 0; }
.header-actions { display: flex; align-items: center; gap: 8px; }
.icon-button { display: grid; place-items: center; width: 42px; height: 42px; border: 1px solid var(--line); border-radius: 13px; background: color-mix(in srgb, var(--surface) 68%, transparent); cursor: pointer; transition: transform .2s var(--ease), border-color .2s, background .2s; }
.icon-button:hover { transform: translateY(-2px); border-color: var(--line-strong); background: var(--surface); }
.theme-icon { display: grid; place-items: center; }
.theme-icon-sun, html[data-theme="dark"] .theme-icon-moon { display: none; }
html[data-theme="dark"] .theme-icon-sun { display: grid; }
.menu-toggle { display: none; }
.menu-close { display: none; }
.menu-toggle[aria-expanded="true"] .menu-open { display: none; }
.menu-toggle[aria-expanded="true"] .menu-close { display: grid; }
.mobile-nav { display: none; }

.hero {
  min-height: calc(100svh - var(--header-height));
  display: grid;
  align-items: center;
  overflow: hidden;
  padding-top: clamp(64px, 7vw, 92px);
  padding-bottom: clamp(72px, 7vw, 96px);
}
.hero-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.12fr) minmax(390px, .72fr);
  align-items: center;
  gap: clamp(54px, 7vw, 94px);
}
.hero-copy { position: relative; z-index: 2; }
.hero-identity {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  width: min(100%, 670px);
  margin-bottom: 22px;
}
.hero-identity .eyebrow { margin: 0; }
.hero-identity > span {
  color: var(--muted);
  font-size: .75rem;
  font-weight: 720;
  letter-spacing: .03em;
  white-space: nowrap;
}
.hero-copy h1 {
  max-width: 760px;
  margin: 0 0 22px;
  font-size: clamp(4.25rem, 6.4vw, 5.8rem);
  font-weight: 790;
  line-height: .94;
  letter-spacing: -.075em;
}
.hero-copy h1 em {
  color: var(--brand);
  font-style: normal;
  font-weight: inherit;
}
.hero-statement {
  max-width: 700px;
  margin-bottom: 22px;
  color: var(--ink);
  font-size: clamp(1.35rem, 2.1vw, 1.72rem);
  line-height: 1.34;
  letter-spacing: -.035em;
}
.hero-statement strong { color: var(--brand); font-weight: 760; }
.hero-lede {
  max-width: 700px;
  margin-bottom: 28px;
  color: var(--ink-2);
  font-size: clamp(1rem, 1.35vw, 1.12rem);
  line-height: 1.75;
}
.status-dot { display: inline-block; width: 8px; height: 8px; margin-right: 8px; border-radius: 50%; background: #23a990; box-shadow: 0 0 0 6px rgba(35,169,144,.12); }
.hero-actions { display: flex; flex-wrap: wrap; gap: 12px; margin: 28px 0 20px; }
.button { display: inline-flex; align-items: center; justify-content: center; gap: 9px; min-height: 48px; padding: 11px 18px; border: 1px solid transparent; border-radius: 14px; font-weight: 760; font-size: .92rem; text-decoration: none; cursor: pointer; transition: transform .2s var(--ease), box-shadow .2s, background .2s, border-color .2s, color .2s; }
.button svg { width: 17px; height: 17px; }
.button:hover { transform: translateY(-2px); }
.button-primary { color: #fff; background: linear-gradient(135deg, #0b4651, #0f8278); box-shadow: 0 12px 26px rgba(13,101,95,.2); }
.button-primary:hover { color: #fff; box-shadow: 0 16px 34px rgba(13,101,95,.27); }
.button-ghost { color: var(--ink); border-color: var(--line); background: color-mix(in srgb, var(--surface) 68%, transparent); }
.button-ghost:hover { color: var(--ink); background: var(--surface); border-color: var(--line-strong); }
.button-light { background: #fff; color: #0b3540; box-shadow: 0 16px 38px rgba(0,0,0,.17); }
.button-light:hover { color: #0b3540; }
.social-row { display: flex; flex-wrap: wrap; gap: 7px; }
.social-link { display: inline-flex; align-items: center; gap: 7px; min-height: 36px; padding: 7px 9px; border-radius: 10px; color: var(--muted); font-size: .79rem; font-weight: 700; text-decoration: none; transition: background .2s, color .2s, transform .2s; }
.social-link svg { width: 17px; height: 17px; }
.social-link:hover { color: var(--brand); background: var(--teal-soft); transform: translateY(-1px); }

.research-panel {
  position: relative;
  width: min(100%, 448px);
  justify-self: end;
  overflow: hidden;
  border: 1px solid rgba(255,255,255,.14);
  border-radius: 32px;
  color: #edf9f7;
  background:
    radial-gradient(circle at 79% 18%, rgba(122,226,205,.22), transparent 26%),
    radial-gradient(circle at 8% 87%, rgba(230,157,103,.15), transparent 30%),
    linear-gradient(145deg, #082c35 0%, #0b4144 52%, #173f3c 100%);
  box-shadow: 0 34px 84px rgba(10,42,48,.25);
  isolation: isolate;
}
.research-panel::before {
  content: "";
  position: absolute;
  inset: 0;
  z-index: -1;
  opacity: .2;
  background-image:
    linear-gradient(rgba(255,255,255,.13) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,.13) 1px, transparent 1px);
  background-size: 42px 42px;
  mask-image: linear-gradient(to bottom, #000 10%, transparent 90%);
}
.research-panel-head {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 20px;
  padding: 24px 25px 15px;
}
.research-panel-head > div { display: grid; gap: 1px; }
.research-panel-head span {
  font-size: .74rem;
  font-weight: 850;
  letter-spacing: .14em;
  text-transform: uppercase;
}
.research-panel-head small { color: rgba(232,249,246,.58); font-size: .72rem; }
.research-panel-head strong {
  color: rgba(237,249,247,.52);
  font-size: .72rem;
  font-weight: 760;
  letter-spacing: .1em;
}
.research-visual { position: relative; height: 304px; margin: 0 18px; }
.research-ring {
  position: absolute;
  border: 1px solid rgba(221,250,245,.17);
  border-radius: 50%;
}
.ring-a { width: 210px; height: 210px; right: -54px; top: 5px; }
.ring-b { width: 130px; height: 130px; right: -14px; top: 45px; }
.research-path {
  position: absolute;
  inset: 4px -3px 0;
  width: calc(100% + 6px);
  height: 100%;
  overflow: visible;
}
.research-path path {
  fill: none;
  stroke: rgba(181,246,234,.78);
  stroke-width: 2;
  stroke-dasharray: 7 9;
}
.research-path circle {
  fill: #8be6d5;
  stroke: rgba(7,43,51,.82);
  stroke-width: 4;
  filter: drop-shadow(0 0 9px rgba(139,230,213,.45));
}
.research-topic {
  position: absolute;
  display: inline-flex;
  align-items: center;
  min-height: 29px;
  padding: 5px 10px;
  border: 1px solid rgba(255,255,255,.15);
  border-radius: 999px;
  color: rgba(240,252,250,.85);
  background: rgba(4,30,36,.42);
  backdrop-filter: blur(10px);
  font-size: .67rem;
  font-weight: 820;
  letter-spacing: .08em;
  text-transform: uppercase;
}
.topic-motion { left: 3px; top: 198px; }
.topic-detail { left: 137px; top: 75px; }
.topic-human { right: 0; top: 128px; }
.topic-efficient { right: 38px; bottom: 10px; }
.portrait-chip {
  position: absolute;
  left: 9px;
  top: 8px;
  display: grid;
  grid-template-columns: 108px 1fr;
  align-items: end;
  gap: 14px;
  width: 252px;
  padding: 9px 12px 9px 9px;
  border: 1px solid rgba(255,255,255,.18);
  border-radius: 21px;
  background: rgba(245,252,251,.1);
  backdrop-filter: blur(14px);
  box-shadow: 0 18px 40px rgba(0,0,0,.18);
}
.portrait-chip img {
  width: 108px;
  height: 132px;
  object-fit: cover;
  object-position: 50% 32%;
  border-radius: 15px;
  background: #d9edf0;
}
.portrait-chip div { display: grid; gap: 2px; padding-bottom: 5px; }
.portrait-chip strong { font-size: .94rem; line-height: 1.22; }
.portrait-chip span { color: rgba(237,249,247,.6); font-size: .68rem; line-height: 1.35; }
.research-panel-foot {
  display: grid;
  gap: 18px;
  padding: 21px 25px 24px;
  border-top: 1px solid rgba(255,255,255,.11);
  background: rgba(4,28,33,.18);
}
.research-now { display: grid; gap: 5px; }
.research-now span {
  color: #91e6d5;
  font-size: .67rem;
  font-weight: 850;
  letter-spacing: .14em;
  text-transform: uppercase;
}
.research-now p {
  max-width: 360px;
  margin: 0;
  color: rgba(238,250,248,.82);
  font-size: .92rem;
  line-height: 1.55;
}
.research-panel-foot > a {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  width: fit-content;
  color: #fff;
  font-size: .78rem;
  font-weight: 780;
  text-decoration: none;
}
.research-panel-foot > a svg { width: 15px; transition: transform .2s var(--ease); }
.research-panel-foot > a:hover { color: #a8eee3; }
.research-panel-foot > a:hover svg { transform: translateX(4px); }

.quick-facts { padding: 0 0 24px; }
.fact-grid { display: grid; grid-template-columns: repeat(3,1fr); overflow: hidden; border: 1px solid var(--line); border-radius: var(--radius); background: var(--surface); box-shadow: var(--shadow-sm); }
.fact-grid article { position: relative; display: grid; padding: 28px 30px; }
.fact-grid article + article::before { content: ""; position: absolute; left: 0; top: 24px; bottom: 24px; width: 1px; background: var(--line); }
.fact-grid strong { font-size: 2rem; letter-spacing: -.05em; }
.fact-grid span { margin-top: 4px; font-weight: 750; }
.fact-grid small { margin-top: 2px; color: var(--muted); }
.section-heading { display: flex; align-items: flex-end; justify-content: space-between; gap: 34px; margin-bottom: 46px; }
.section-heading h2 { margin-bottom: 0; }
.section-heading > p { max-width: 570px; margin-bottom: 4px; color: var(--ink-2); }
.section-heading.compact { margin-bottom: 24px; }
.text-link { display: inline-flex; align-items: center; gap: 8px; color: var(--brand); font-weight: 800; text-decoration: none; white-space: nowrap; }
.text-link svg { width: 18px; transition: transform .2s; }
.text-link:hover svg { transform: translateX(4px); }
.research-grid { display: grid; grid-template-columns: repeat(2,1fr); gap: 18px; }
.research-card { position: relative; min-height: 280px; overflow: hidden; padding: 30px; border: 1px solid var(--line); border-radius: var(--radius); background: var(--surface); box-shadow: var(--shadow-sm); transition: transform .28s var(--ease), border-color .28s, box-shadow .28s; }
.research-card:hover { transform: translateY(-5px); border-color: var(--line-strong); box-shadow: 0 24px 55px rgba(16,35,43,.11); }
.card-index { display: block; margin-bottom: 48px; color: var(--brand); font-size: .72rem; font-weight: 850; letter-spacing: .13em; }
.research-card h3 { margin-bottom: 12px; font-size: 1.65rem; }
.research-card p { max-width: 65%; margin-bottom: 0; color: var(--ink-2); }
.mini-graphic { position: absolute; right: 28px; bottom: 28px; width: 118px; height: 100px; opacity: .75; }
.motion-graphic i { position: absolute; width: 15px; height: 15px; border: 3px solid var(--brand); border-radius: 50%; }
.motion-graphic i:nth-child(1) { left: 3px; bottom: 13px; }
.motion-graphic i:nth-child(2) { left: 48px; top: 17px; }
.motion-graphic i:nth-child(3) { right: 3px; bottom: 30px; }
.motion-graphic::before, .motion-graphic::after { content: ""; position: absolute; height: 3px; background: var(--brand); transform-origin: left; border-radius: 3px; }
.motion-graphic::before { width: 58px; left: 15px; bottom: 26px; transform: rotate(-42deg); }
.motion-graphic::after { width: 55px; left: 59px; top: 32px; transform: rotate(28deg); }
.pixel-graphic { display: grid; grid-template-columns: repeat(3,1fr); gap: 7px; }
.pixel-graphic i { border-radius: 5px; background: var(--teal-soft); }
.pixel-graphic i:nth-child(2), .pixel-graphic i:nth-child(5), .pixel-graphic i:nth-child(9) { background: var(--brand); }
.pose-graphic i { position: absolute; border-radius: 50%; background: var(--brand); }
.pose-graphic i:nth-child(1) { width: 20px; height: 20px; top: 0; left: 49px; }
.pose-graphic i:nth-child(2) { width: 8px; height: 48px; top: 25px; left: 55px; border-radius: 8px; }
.pose-graphic i:nth-child(3), .pose-graphic i:nth-child(4) { width: 8px; height: 54px; top: 31px; left: 33px; transform: rotate(40deg); border-radius: 8px; }
.pose-graphic i:nth-child(4) { left: 78px; transform: rotate(-40deg); }
.pose-graphic i:nth-child(5) { width: 64px; height: 8px; left: 28px; top: 50px; border-radius: 8px; }
.efficient-graphic i { position: absolute; left: 0; height: 14px; border-radius: 7px; background: var(--teal-soft); }
.efficient-graphic i:nth-child(1) { top: 10px; width: 110px; }
.efficient-graphic i:nth-child(2) { top: 43px; width: 76px; background: var(--brand); }
.efficient-graphic i:nth-child(3) { top: 76px; width: 43px; background: var(--accent); }
.news-layout { display: grid; grid-template-columns: .7fr 1.3fr; gap: clamp(50px,8vw,110px); }
.timeline { list-style: none; margin: 0; padding: 0; }
.timeline-item { position: relative; display: grid; grid-template-columns: 115px 1fr; gap: 24px; padding: 0 0 32px; }
.timeline-item::before { content: ""; position: absolute; left: 105px; top: 5px; bottom: 0; width: 1px; background: var(--line); }
.timeline-item::after { content: ""; position: absolute; left: 100px; top: 5px; width: 11px; height: 11px; border: 3px solid var(--bg); border-radius: 50%; background: var(--muted); box-shadow: 0 0 0 1px var(--line-strong); }
.timeline-item.featured::after { background: var(--brand); box-shadow: 0 0 0 5px color-mix(in srgb, var(--brand) 15%, transparent); }
.timeline-item time { display: grid; align-content: start; color: var(--muted); font-size: .72rem; font-weight: 750; text-transform: uppercase; }
.timeline-item time span { color: var(--ink); font-size: 1rem; }
.timeline-item h3 { margin: 9px 0 7px; font-size: 1.2rem; }
.timeline-item p { margin: 0; color: var(--ink-2); font-size: .92rem; }
.tag { display: inline-flex; align-items: center; width: fit-content; min-height: 25px; padding: 3px 9px; border-radius: 999px; background: var(--teal-soft); color: var(--brand-strong); font-size: .67rem; font-weight: 850; letter-spacing: .06em; text-transform: uppercase; }

.publication-list { display: grid; gap: 18px; }
.pub-card { display: grid; grid-template-columns: minmax(230px,31%) 1fr; overflow: hidden; border: 1px solid var(--line); border-radius: var(--radius); background: var(--surface); box-shadow: var(--shadow-sm); transition: transform .25s var(--ease), border-color .25s, box-shadow .25s; }
.pub-card:hover { transform: translateY(-4px); border-color: var(--line-strong); box-shadow: 0 25px 60px rgba(16,35,43,.12); }
.pub-media { position: relative; min-height: 250px; overflow: hidden; background: #f4f6f6; }
.pub-media img { width: 100%; height: 100%; object-fit: contain; transition: transform .45s var(--ease); }
.pub-card:hover .pub-media img { transform: scale(1.025); }
.pub-year { position: absolute; left: 14px; top: 14px; z-index: 2; padding: 5px 10px; border: 1px solid rgba(255,255,255,.65); border-radius: 999px; background: rgba(5,33,41,.78); color: #fff; backdrop-filter: blur(10px); font-size: .69rem; font-weight: 850; letter-spacing: .08em; }
.pub-body { display: flex; flex-direction: column; padding: 28px 30px 25px; }
.pub-meta { display: flex; flex-wrap: wrap; align-items: center; gap: 8px; margin-bottom: 13px; }
.pub-type { color: var(--muted); font-size: .72rem; font-weight: 750; }
.pub-title { margin-bottom: 11px; font-size: clamp(1.25rem,2.1vw,1.7rem); }
.pub-authors { margin-bottom: 7px; color: var(--ink-2); font-size: .9rem; }
.pub-authors strong { color: var(--ink); text-decoration: underline; text-decoration-color: color-mix(in srgb, var(--brand) 35%, transparent); text-decoration-thickness: 3px; text-underline-offset: 3px; }
.pub-venue { margin-bottom: 16px; color: var(--brand); font-weight: 800; font-size: .86rem; }
.pub-actions { display: flex; flex-wrap: wrap; gap: 8px; margin-top: auto; }
.pub-link { display: inline-flex; align-items: center; min-height: 34px; padding: 6px 11px; border: 1px solid var(--line); border-radius: 10px; color: var(--ink); background: color-mix(in srgb, var(--surface-2) 58%, transparent); font-size: .76rem; font-weight: 800; text-decoration: none; }
.pub-link:hover { color: var(--brand); border-color: var(--brand); }
.pub-link.primary { color: #fff; border-color: transparent; background: var(--brand); }
.pub-link.primary:hover { color: #fff; background: var(--brand-strong); }
.pub-abstract { margin-top: 17px; border-top: 1px solid var(--line); padding-top: 14px; }
.pub-abstract summary { width: fit-content; color: var(--muted); font-size: .77rem; font-weight: 800; cursor: pointer; }
.pub-abstract summary:hover { color: var(--brand); }
.pub-abstract p { margin: 12px 0 0; color: var(--ink-2); font-size: .88rem; }
.education-grid { display: grid; gap: 14px; }
.education-card { display: grid; grid-template-columns: 220px 1fr; gap: 32px; padding: 28px 30px; border: 1px solid var(--line); border-radius: var(--radius); background: var(--surface); }
.edu-date { color: var(--muted); font-size: .8rem; font-weight: 800; letter-spacing: .04em; text-transform: uppercase; }
.education-card h3 { margin: 10px 0 5px; font-size: 1.45rem; }
.education-card p { margin-bottom: 0; color: var(--ink-2); }
.education-card .degree { color: var(--ink); font-weight: 750; }
.contact-band { padding: 90px 0; color: #eefaf8; background: radial-gradient(circle at 85% 0%, rgba(129,234,216,.25), transparent 26rem), linear-gradient(130deg,#082c39,#0d625d 70%,#137e70); }
.contact-inner { display: flex; align-items: center; justify-content: space-between; gap: 36px; }
.contact-inner h2 { max-width: 750px; margin-bottom: 14px; font-size: clamp(2.15rem,4vw,3.8rem); }
.contact-inner p:not(.eyebrow) { max-width: 650px; margin: 0; color: rgba(238,250,248,.78); }
.contact-inner .eyebrow { color: #a8eee3; }
.site-footer { padding: 54px 0 24px; border-top: 1px solid var(--line); background: var(--surface); }
.footer-grid { display: flex; align-items: flex-start; justify-content: space-between; gap: 40px; }
.footer-brand { margin-bottom: 13px; }
.footer-grid p { margin-bottom: 0; color: var(--muted); font-size: .85rem; }
.footer-socials { display: flex; flex-wrap: wrap; justify-content: flex-end; gap: 3px; }
.footer-bottom { display: flex; justify-content: space-between; gap: 20px; margin-top: 34px; padding-top: 20px; border-top: 1px solid var(--line); color: var(--muted); font-size: .74rem; }

.page-hero { padding: 110px 0 75px; overflow: hidden; border-bottom: 1px solid var(--line); background: linear-gradient(145deg, color-mix(in srgb, var(--surface-2) 75%, transparent), transparent); }
.page-hero-grid { display: flex; align-items: flex-end; justify-content: space-between; gap: 40px; }
.page-hero h1 { margin-bottom: 15px; font-size: clamp(3.5rem,7vw,6rem); }
.page-hero p:not(.eyebrow) { max-width: 680px; margin-bottom: 0; color: var(--ink-2); font-size: 1.08rem; }
.page-hero-stat { display: flex; align-items: center; gap: 17px; min-width: 220px; padding: 20px; border: 1px solid var(--line); border-radius: 18px; background: var(--surface); box-shadow: var(--shadow-sm); }
.page-hero-stat strong { font-size: 2.5rem; letter-spacing: -.07em; }
.page-hero-stat span { color: var(--muted); font-size: .78rem; line-height: 1.35; }
.publications-page { padding-top: 56px; }
.publication-toolbar { position: sticky; top: calc(var(--header-height) + 14px); z-index: 20; display: flex; align-items: center; justify-content: space-between; gap: 18px; margin-bottom: 24px; padding: 13px; border: 1px solid var(--line); border-radius: 18px; background: var(--bg-elevated); backdrop-filter: blur(18px); box-shadow: var(--shadow-sm); }
.year-filters { display: flex; flex-wrap: wrap; gap: 5px; }
.filter-button { min-height: 38px; padding: 7px 13px; border: 0; border-radius: 11px; color: var(--muted); background: transparent; font-size: .8rem; font-weight: 800; cursor: pointer; }
.filter-button:hover { color: var(--ink); background: var(--surface-2); }
.filter-button.is-active { color: #fff; background: var(--brand); }
.search-field { display: flex; align-items: center; gap: 9px; width: min(360px,100%); min-height: 42px; padding: 0 13px; border: 1px solid var(--line); border-radius: 12px; background: var(--surface); }
.search-field svg { flex: 0 0 auto; width: 17px; color: var(--muted); }
.search-field input { width: 100%; border: 0; outline: 0; color: var(--ink); background: transparent; font-size: .84rem; }
.search-field input::placeholder { color: var(--muted); }
.results-summary { min-height: 28px; margin-bottom: 10px; color: var(--muted); font-size: .79rem; font-weight: 700; }
.empty-state { padding: 90px 20px; border: 1px dashed var(--line-strong); border-radius: var(--radius); text-align: center; }
.empty-state h2 { margin-bottom: 9px; font-size: 2rem; }
.empty-state p { color: var(--muted); }
.not-found { min-height: calc(100vh - var(--header-height) - 260px); display: grid; place-items: center; padding: 100px 0; text-align: center; }
.not-found h1 { margin-bottom: 18px; }
.not-found p { max-width: 600px; margin-inline: auto; color: var(--ink-2); font-size: 1.05rem; }
.not-found .hero-actions { justify-content: center; }

.reveal { opacity: 1; transform: none; }
.js .reveal { opacity: 0; transform: translateY(20px); transition: opacity .65s var(--ease), transform .65s var(--ease); }
.js .reveal.is-visible { opacity: 1; transform: none; }

@media (max-width: 980px) {
  :root { --shell: min(100% - 32px, 920px); }
  .desktop-nav { display: none; }
  .menu-toggle { display: grid; }
  .mobile-nav { position: absolute; left: 16px; right: 16px; top: calc(100% + 8px); display: grid; gap: 4px; max-height: 0; overflow: hidden; padding: 0 12px; border: 0 solid var(--line); border-radius: 18px; background: var(--surface); box-shadow: var(--shadow-lg); opacity: 0; transform: translateY(-8px); transition: max-height .28s, padding .28s, opacity .2s, transform .28s; }
  .mobile-nav.is-open { max-height: 320px; padding: 12px; border-width: 1px; opacity: 1; transform: none; }
  .mobile-nav a { padding: 11px 12px; border-radius: 10px; color: var(--ink-2); font-weight: 750; text-decoration: none; }
  .mobile-nav a:hover, .mobile-nav a[aria-current="page"] { color: var(--ink); background: var(--surface-2); }
  .header-actions { margin-left: auto; }
  .hero { min-height: auto; }
  .hero-grid { grid-template-columns: 1fr; }
  .research-panel { width: min(100%, 620px); justify-self: center; }
  .news-layout { grid-template-columns: 1fr; gap: 24px; }
  .pub-card { grid-template-columns: 290px 1fr; }
  .contact-inner { align-items: flex-start; flex-direction: column; }
}
@media (max-width: 760px) {
  :root { --header-height: 68px; --shell: calc(100% - 28px); }
  .section-pad { padding: 82px 0; }
  .hero { padding-top: 62px; padding-bottom: 76px; }
  .hero-identity { align-items: flex-start; flex-direction: column; gap: 7px; }
  .hero-copy h1 { font-size: clamp(3.7rem, 15vw, 5.2rem); }
  .hero-statement { font-size: clamp(1.22rem, 5.4vw, 1.55rem); }
  .hero-lede { font-size: 1rem; }
  .social-link span { display: none; }
  .social-link { width: 38px; justify-content: center; }
  .fact-grid { grid-template-columns: 1fr; }
  .fact-grid article + article::before { left: 24px; right: 24px; top: 0; bottom: auto; width: auto; height: 1px; }
  .section-heading { align-items: flex-start; flex-direction: column; gap: 16px; margin-bottom: 32px; }
  .research-grid { grid-template-columns: 1fr; }
  .research-card p { max-width: 72%; }
  .timeline-item { grid-template-columns: 90px 1fr; gap: 20px; }
  .timeline-item::before { left: 80px; }
  .timeline-item::after { left: 75px; }
  .pub-card { grid-template-columns: 1fr; }
  .pub-media { min-height: 0; aspect-ratio: 16/9; }
  .education-card { grid-template-columns: 1fr; gap: 13px; padding: 24px; }
  .footer-grid, .footer-bottom { align-items: flex-start; flex-direction: column; }
  .footer-socials { justify-content: flex-start; }
  .page-hero { padding: 80px 0 54px; }
  .page-hero-grid { align-items: flex-start; flex-direction: column; }
  .publication-toolbar { position: relative; top: auto; align-items: stretch; flex-direction: column; }
  .search-field { width: 100%; }
}
@media (max-width: 480px) {
  .brand-text { display: none; }
  .hero-actions .button { width: 100%; }
  .research-panel { border-radius: 25px; }
  .research-visual { height: 290px; margin-inline: 10px; }
  .portrait-chip { grid-template-columns: 88px 1fr; width: 218px; }
  .portrait-chip img { width: 88px; height: 112px; }
  .topic-detail { left: 110px; }
  .topic-efficient { right: 8px; }
  .research-card { min-height: 300px; padding: 25px; }
  .research-card p { max-width: 100%; }
  .mini-graphic { opacity: .28; }
  .timeline-item { grid-template-columns: 1fr; padding-left: 25px; }
  .timeline-item::before { left: 5px; }
  .timeline-item::after { left: 0; }
  .pub-body { padding: 23px 21px; }
  .contact-band { padding: 72px 0; }
  .button-light { width: 100%; }
}
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { animation-duration: .01ms !important; animation-iteration-count: 1 !important; transition-duration: .01ms !important; }
  .reveal { opacity: 1; transform: none; }
}
@media print {
  .site-header, .site-footer, .publication-toolbar, .contact-band, .hero-actions, .social-row { display: none !important; }
  body { background: #fff; color: #000; }
  .section-pad { padding: 30px 0; }
  .pub-card { break-inside: avoid; box-shadow: none; }
}

/* --------------------------------------------------------------------------
   Home redesign v4 — image → video → human → language
   -------------------------------------------------------------------------- */
body::before { display: none; }

.hero-v4 {
  position: relative;
  min-height: calc(100svh - var(--header-height));
  padding-top: clamp(62px, 7vw, 92px);
  padding-bottom: clamp(70px, 7vw, 94px);
  background: linear-gradient(180deg, color-mix(in srgb, var(--surface) 32%, transparent), transparent 72%);
}
.hero-v4 .hero-grid {
  grid-template-columns: minmax(0, 1.18fr) minmax(390px, .72fr);
  gap: clamp(52px, 7vw, 96px);
}
.hero-v4 .hero-identity { margin-bottom: 24px; }
.hero-v4 .hero-copy h1 {
  margin-bottom: 22px;
  font-size: clamp(4.2rem, 6.45vw, 5.9rem);
}
.hero-v4 .hero-statement {
  max-width: 720px;
  margin-bottom: 22px;
  font-size: clamp(1.55rem, 2.35vw, 2rem);
  line-height: 1.27;
  letter-spacing: -.045em;
}
.hero-v4 .hero-statement strong {
  color: var(--brand);
  font-weight: 780;
}
.hero-v4 .hero-lede {
  max-width: 720px;
  margin-bottom: 26px;
  font-size: clamp(1rem, 1.22vw, 1.08rem);
  line-height: 1.78;
}
.hero-v4 .hero-actions { margin-top: 26px; }

.continuum-card {
  position: relative;
  width: min(100%, 438px);
  justify-self: end;
  overflow: hidden;
  padding: 22px;
  border: 1px solid var(--line);
  border-radius: 30px;
  background: var(--surface);
  box-shadow: 0 28px 72px rgba(16,35,43,.12);
}
.continuum-card::before {
  content: "";
  position: absolute;
  left: 22px;
  right: 22px;
  top: 0;
  height: 3px;
  border-radius: 0 0 999px 999px;
  background: linear-gradient(90deg, var(--brand), color-mix(in srgb, var(--brand) 42%, var(--accent)));
}
.profile-compact {
  display: grid;
  grid-template-columns: 112px minmax(0, 1fr);
  align-items: center;
  gap: 18px;
  padding: 7px 0 22px;
  border-bottom: 1px solid var(--line);
}
.profile-compact-image {
  overflow: hidden;
  width: 112px;
  aspect-ratio: 4 / 4.75;
  border: 1px solid var(--line);
  border-radius: 18px;
  background: var(--surface-2);
}
.profile-compact-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: 50% 28%;
}
.profile-compact-copy { min-width: 0; }
.profile-overline {
  display: block;
  margin-bottom: 8px;
  color: var(--brand);
  font-size: .65rem;
  font-weight: 850;
  letter-spacing: .14em;
  text-transform: uppercase;
}
.profile-compact-copy > strong {
  display: block;
  margin-bottom: 4px;
  font-size: 1.23rem;
  letter-spacing: -.035em;
}
.profile-compact-copy p {
  margin: 0 0 4px;
  color: var(--ink-2);
  font-size: .83rem;
  line-height: 1.45;
}
.profile-compact-copy small {
  display: block;
  color: var(--muted);
  font-size: .72rem;
  line-height: 1.45;
}
.continuum-heading {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 18px;
  padding: 21px 1px 10px;
}
.continuum-heading > div { display: grid; gap: 2px; }
.continuum-heading > div > span {
  font-size: .72rem;
  font-weight: 850;
  letter-spacing: .13em;
  text-transform: uppercase;
}
.continuum-heading small {
  color: var(--muted);
  font-size: .72rem;
}
.continuum-mark {
  color: var(--muted);
  font-size: .67rem;
  font-weight: 780;
  letter-spacing: .1em;
  white-space: nowrap;
}
.continuum-list {
  position: relative;
  list-style: none;
  margin: 0;
  padding: 0;
}
.continuum-list li {
  display: grid;
  grid-template-columns: 39px minmax(0, 1fr) auto;
  align-items: center;
  gap: 12px;
  min-height: 61px;
  border-top: 1px solid var(--line);
}
.step-number {
  display: grid;
  place-items: center;
  width: 31px;
  height: 31px;
  border-radius: 10px;
  color: var(--brand-strong);
  background: var(--teal-soft);
  font-size: .66rem;
  font-weight: 850;
  letter-spacing: .04em;
}
.continuum-list li > div { display: grid; gap: 1px; }
.continuum-list li strong {
  font-size: .94rem;
  letter-spacing: -.018em;
}
.continuum-list li small {
  color: var(--muted);
  font-size: .72rem;
  line-height: 1.35;
}
.step-domain {
  padding: 4px 8px;
  border: 1px solid var(--line);
  border-radius: 999px;
  color: var(--muted);
  background: color-mix(in srgb, var(--surface-2) 58%, transparent);
  font-size: .61rem;
  font-weight: 800;
  letter-spacing: .08em;
  text-transform: uppercase;
}
.continuum-summary {
  margin: 17px 0 0;
  padding: 14px 15px;
  border-radius: 15px;
  color: var(--ink-2);
  background: var(--surface-2);
  font-size: .78rem;
  line-height: 1.55;
}
.continuum-summary strong {
  display: block;
  margin-bottom: 2px;
  color: var(--ink);
  font-size: .8rem;
}

.fact-grid-v4 { grid-template-columns: 1.55fr .72fr .72fr; }
.fact-grid-v4 .fact-arc { align-content: center; }
.fact-grid-v4 .fact-kicker {
  margin: 0 0 6px;
  color: var(--brand);
  font-size: .65rem;
  font-weight: 850;
  letter-spacing: .13em;
  text-transform: uppercase;
}
.fact-grid-v4 .fact-arc strong {
  font-size: clamp(1.08rem, 1.55vw, 1.36rem);
  line-height: 1.28;
  letter-spacing: -.025em;
}

.multimodal-graphic {
  width: 142px;
  height: 112px;
}
.multimodal-graphic i {
  position: absolute;
  z-index: 2;
  width: 34px;
  height: 34px;
  border: 1px solid var(--line-strong);
  border-radius: 11px;
  background: var(--surface-2);
  box-shadow: 0 8px 18px rgba(16,35,43,.06);
}
.multimodal-graphic i:nth-child(1) { left: 0; top: 10px; background: var(--teal-soft); }
.multimodal-graphic i:nth-child(2) { right: 0; top: 10px; }
.multimodal-graphic i:nth-child(3) { left: 0; bottom: 7px; }
.multimodal-graphic i:nth-child(4) { right: 0; bottom: 7px; background: var(--accent-soft); }
.multimodal-graphic b {
  position: absolute;
  z-index: 1;
  height: 1px;
  background: var(--line-strong);
  transform-origin: left center;
}
.multimodal-graphic b:nth-of-type(1) { left: 33px; top: 27px; width: 77px; }
.multimodal-graphic b:nth-of-type(2) { left: 27px; top: 40px; width: 74px; transform: rotate(43deg); }
.multimodal-graphic b:nth-of-type(3) { left: 27px; bottom: 24px; width: 78px; }

html[data-theme="dark"] .continuum-card {
  background: color-mix(in srgb, var(--surface) 92%, #08141a);
  box-shadow: 0 30px 80px rgba(0,0,0,.32);
}
html[data-theme="dark"] .profile-compact-image { background: #cbeaf2; }

@media (max-width: 980px) {
  .hero-v4 .hero-grid { grid-template-columns: 1fr; gap: 48px; }
  .continuum-card { width: min(100%, 620px); justify-self: center; }
}

@media (max-width: 760px) {
  .hero-v4 { padding-top: 58px; padding-bottom: 70px; }
  .hero-v4 .hero-copy h1 { font-size: clamp(3.55rem, 15vw, 5rem); }
  .hero-v4 .hero-statement { font-size: clamp(1.34rem, 6vw, 1.72rem); }
  .hero-v4 .hero-statement br { display: none; }
  .continuum-card { padding: 18px; border-radius: 24px; }
  .continuum-card::before { left: 18px; right: 18px; }
  .profile-compact { grid-template-columns: 98px minmax(0, 1fr); gap: 15px; }
  .profile-compact-image { width: 98px; border-radius: 15px; }
  .continuum-list li { grid-template-columns: 36px minmax(0, 1fr) auto; gap: 10px; }
  .fact-grid-v4 { grid-template-columns: 1fr; }
}

@media (max-width: 480px) {
  .hero-v4 .hero-copy h1 { font-size: clamp(3.05rem, 16vw, 4.35rem); }
  .hero-v4 .hero-statement { font-size: 1.32rem; }
  .continuum-card { padding: 16px; }
  .continuum-card::before { left: 16px; right: 16px; }
  .profile-compact { grid-template-columns: 86px minmax(0, 1fr); gap: 13px; padding-bottom: 18px; }
  .profile-compact-image { width: 86px; }
  .profile-compact-copy > strong { font-size: 1.05rem; }
  .profile-compact-copy p { font-size: .75rem; }
  .profile-compact-copy small { font-size: .66rem; }
  .continuum-heading { padding-top: 18px; }
  .continuum-mark, .step-domain { display: none; }
  .continuum-list li { grid-template-columns: 34px minmax(0, 1fr); min-height: 59px; }
  .continuum-summary { padding: 13px; }
}

/* v4 copy-flow refinements */
.hero-v4 .hero-statement > span { display: block; }
.continuum-heading { justify-content: flex-start; }
@media (max-width: 760px) {
  .hero-v4 .hero-statement > span { display: inline; }
  .hero-v4 .hero-statement > span + span::before { content: " "; }
}