:root {
  --bg: #06111f;
  --bg-2: #091929;
  --panel: rgba(12, 31, 51, 0.74);
  --panel-strong: rgba(13, 38, 64, 0.92);
  --line: rgba(153, 211, 255, 0.16);
  --line-strong: rgba(144, 221, 255, 0.34);
  --text: #e6f4ff;
  --muted: #9fb4c8;
  --soft: #c9d8e7;
  --cyan: #63d7ff;
  --blue: #7aa7ff;
  --ice: #d7f7ff;
  --shadow: 0 22px 70px rgba(0, 0, 0, 0.32);
  --radius: 8px;
  color-scheme: dark;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  min-height: 100vh;
  font-family: Inter, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", Helvetica, Arial, sans-serif;
  background:
    linear-gradient(180deg, rgba(6, 17, 31, 0.96), rgba(4, 12, 22, 1)),
    radial-gradient(circle at 80% 10%, rgba(64, 158, 255, 0.22), transparent 32%),
    radial-gradient(circle at 8% 0%, rgba(111, 234, 255, 0.12), transparent 28%);
  color: var(--text);
  letter-spacing: 0;
}

body.lightbox-active {
  overflow: hidden;
}

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

img {
  display: block;
  max-width: 100%;
}

button {
  font: inherit;
}

.container {
  width: min(1160px, calc(100% - 40px));
  margin: 0 auto;
}

.narrow {
  width: min(880px, calc(100% - 40px));
}

.site-atmosphere {
  position: fixed;
  inset: 0;
  pointer-events: none;
  background:
    linear-gradient(rgba(130, 217, 255, 0.035) 1px, transparent 1px),
    linear-gradient(90deg, rgba(130, 217, 255, 0.025) 1px, transparent 1px);
  background-size: 72px 72px;
  mask-image: linear-gradient(to bottom, #000, transparent 68%);
  z-index: -1;
}

.skip-link {
  position: absolute;
  left: 16px;
  top: -100px;
  padding: 10px 14px;
  background: var(--cyan);
  color: #03111f;
  border-radius: var(--radius);
  z-index: 20;
}

.skip-link:focus {
  top: 12px;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 10;
  background: rgba(4, 12, 22, 0.74);
  border-bottom: 1px solid var(--line);
  backdrop-filter: blur(18px);
}

.nav {
  min-height: 74px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 12px;
}

.brand-mark {
  width: 38px;
  height: 38px;
  border: 1px solid var(--line-strong);
  border-radius: 50%;
  background:
    linear-gradient(135deg, rgba(99, 215, 255, 0.86), rgba(122, 167, 255, 0.16)),
    radial-gradient(circle at 35% 30%, #fff, transparent 18%);
  box-shadow: 0 0 34px rgba(99, 215, 255, 0.28);
}

.brand strong,
.brand small {
  display: block;
}

.brand strong {
  font-size: 0.98rem;
  line-height: 1.1;
}

.brand small {
  margin-top: 2px;
  color: var(--muted);
  font-size: 0.72rem;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 8px;
}

.nav-links a {
  padding: 10px 13px;
  color: var(--soft);
  border: 1px solid transparent;
  border-radius: 999px;
  font-size: 0.9rem;
  transition: color 180ms ease, border-color 180ms ease, background 180ms ease;
}

.nav-links a:hover,
.nav-links a[aria-current="page"] {
  color: var(--ice);
  border-color: var(--line-strong);
  background: rgba(99, 215, 255, 0.08);
}

.nav-toggle {
  display: none;
  width: 42px;
  height: 42px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: rgba(255, 255, 255, 0.03);
  color: var(--text);
}

.nav-toggle span {
  display: block;
  width: 18px;
  height: 2px;
  margin: 4px auto;
  background: currentColor;
}

.hero,
.page-hero,
.gallery-hero {
  padding: 86px 0 54px;
}

.hero-grid,
.gallery-hero-grid,
.research-visual,
.split,
.detail-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.15fr) minmax(280px, 0.85fr);
  gap: 44px;
  align-items: center;
}

.eyebrow,
.section-kicker {
  margin: 0 0 12px;
  color: var(--cyan);
  font-size: 0.76rem;
  font-weight: 800;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

h1,
h2,
h3,
p {
  margin-top: 0;
}

h1 {
  max-width: 950px;
  margin-bottom: 22px;
  font-size: clamp(2.65rem, 7vw, 5.75rem);
  line-height: 0.96;
  font-weight: 800;
}

.home-title {
  font-size: clamp(2.8rem, 6vw, 4.8rem);
  line-height: 1;
}

.home-title span {
  display: block;
  margin-top: 8px;
  color: var(--cyan);
  font-size: clamp(1.25rem, 2.6vw, 2rem);
  font-weight: 700;
}

h2 {
  margin-bottom: 18px;
  font-size: clamp(1.8rem, 3.6vw, 3.2rem);
  line-height: 1.04;
}

h3 {
  font-size: 1rem;
  line-height: 1.35;
}

.compact-heading {
  font-size: clamp(1.25rem, 2.4vw, 1.85rem);
  line-height: 1.16;
}

p {
  color: var(--soft);
  line-height: 1.75;
}

.hero-lede,
.page-hero p,
.gallery-hero p {
  max-width: 760px;
  color: #d2e4f4;
  font-size: 1.08rem;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 30px;
}

.profile-links {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 16px;
}

.profile-links a {
  padding: 8px 11px;
  border: 1px solid var(--line);
  border-radius: 999px;
  color: var(--ice);
  background: rgba(255, 255, 255, 0.035);
  font-size: 0.86rem;
  font-weight: 700;
  transition: color 180ms ease, border-color 180ms ease, background 180ms ease;
}

.profile-links a:hover {
  color: #03111f;
  border-color: transparent;
  background: var(--cyan);
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 44px;
  padding: 0 18px;
  border-radius: 999px;
  border: 1px solid var(--line-strong);
  font-weight: 700;
  transition: transform 180ms ease, border-color 180ms ease, background 180ms ease;
}

.button:hover {
  transform: translateY(-2px);
}

.button.primary {
  background: linear-gradient(135deg, rgba(99, 215, 255, 0.96), rgba(122, 167, 255, 0.8));
  color: #03111f;
  border-color: transparent;
}

.button.secondary {
  color: var(--ice);
  background: rgba(255, 255, 255, 0.035);
}

.signal-panel,
.gallery-quote,
.interest-grid article,
.detail-grid article,
.tri-grid article,
.publication-card,
.timeline-item,
.research-visual figure,
.text-panel {
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: linear-gradient(180deg, rgba(13, 35, 58, 0.82), rgba(6, 19, 35, 0.66));
  box-shadow: var(--shadow);
}

.signal-panel {
  padding: 18px;
}

.profile-orbit {
  position: relative;
  aspect-ratio: 1 / 1;
  overflow: hidden;
  border-radius: var(--radius);
  border: 1px solid var(--line-strong);
}

.profile-orbit img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  filter: saturate(0.75) contrast(1.08) brightness(0.88);
}

.metric-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 10px;
  margin-top: 14px;
}

.metric-grid div {
  padding: 13px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: rgba(255, 255, 255, 0.035);
}

.metric-grid span {
  display: block;
  color: var(--muted);
  font-size: 0.72rem;
}

.metric-grid strong {
  display: block;
  margin-top: 5px;
  color: var(--ice);
  font-size: 0.95rem;
  overflow-wrap: anywhere;
}

.section {
  padding: 72px 0;
}

.section.compact {
  padding-top: 44px;
}

.section-heading {
  max-width: 780px;
  margin-bottom: 28px;
}

.prose p:last-child {
  margin-bottom: 0;
}

.interest-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 16px;
}

.interest-grid article {
  padding: 22px;
}

.interest-grid span {
  color: var(--cyan);
  font-size: 0.78rem;
  font-weight: 800;
}

.interest-grid p {
  margin-bottom: 0;
  color: var(--muted);
  font-size: 0.92rem;
}

.text-panel {
  padding: 26px;
}

.text-panel p:last-child {
  margin-bottom: 0;
}

.gallery-statement p {
  font-size: 1rem;
}

.research-visual figure {
  margin: 0;
  padding: 14px;
}

.research-visual img {
  border-radius: calc(var(--radius) - 2px);
  background: #fff;
}

.clean-list {
  display: grid;
  gap: 14px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.clean-list li {
  padding-left: 18px;
  border-left: 2px solid var(--cyan);
  color: var(--soft);
  line-height: 1.7;
}

.publication-list {
  display: grid;
  gap: 16px;
}

.publication-card {
  display: grid;
  grid-template-columns: 230px minmax(0, 1fr);
  overflow: hidden;
}

.publication-media {
  position: relative;
  min-height: 150px;
  background: rgba(255, 255, 255, 0.04);
}

.publication-media img {
  width: 100%;
  height: 100%;
  min-height: 150px;
  object-fit: cover;
  filter: saturate(0.88) contrast(1.04);
}

.pub-badge {
  position: absolute;
  left: 10px;
  top: 10px;
  z-index: 1;
  max-width: calc(100% - 20px);
  padding: 6px 8px;
  border-radius: 999px;
  background: rgba(4, 12, 22, 0.76);
  border: 1px solid var(--line-strong);
  color: var(--ice);
  font-size: 0.7rem;
  font-weight: 700;
}

.publication-body {
  padding: 22px;
}

.publication-body h3 {
  margin-bottom: 10px;
  color: var(--ice);
  font-size: 1.12rem;
}

.publication-body h3 a:hover,
.software-list a:hover,
.footer-links a:hover {
  color: var(--cyan);
}

.pub-authors,
.pub-note,
.pub-keywords {
  margin-bottom: 0;
  color: var(--muted);
  font-size: 0.9rem;
}

.pub-note {
  margin-top: 10px;
  color: var(--cyan);
  font-weight: 800;
}

.pub-keywords {
  margin-top: 12px;
  color: #a9d6ea;
}

.publication-simple-list {
  display: grid;
  gap: 14px;
  margin: 20px 0 0;
  padding: 22px 22px 22px 46px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: rgba(9, 25, 41, 0.58);
  color: var(--soft);
}

.publication-simple-list li {
  line-height: 1.7;
}

.publication-simple-list em {
  color: var(--ice);
}

.subsection-heading {
  margin-top: 34px;
  margin-bottom: 14px;
}

.detail-grid {
  align-items: stretch;
}

.detail-grid article,
.tri-grid article {
  padding: 26px;
}

.tri-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
  align-items: stretch;
}

.timeline-mini {
  display: grid;
  gap: 13px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.timeline-mini li {
  color: var(--soft);
  line-height: 1.65;
}

.timeline-mini span {
  display: block;
  color: var(--cyan);
  font-size: 0.82rem;
  font-weight: 800;
}

.journal-list {
  display: grid;
  gap: 10px;
  margin: 0;
  padding-left: 18px;
  color: var(--soft);
}

.journal-list li {
  line-height: 1.55;
}

.software-list {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.software-list a {
  padding: 9px 12px;
  border: 1px solid var(--line);
  border-radius: 999px;
  color: var(--soft);
  background: rgba(255, 255, 255, 0.035);
}

.highlight-line {
  padding-left: 16px;
  border-left: 2px solid var(--cyan);
}

.muted {
  color: var(--muted);
}

.timeline {
  position: relative;
  display: grid;
  gap: 18px;
}

.timeline::before {
  content: "";
  position: absolute;
  left: 112px;
  top: 8px;
  bottom: 8px;
  width: 1px;
  background: linear-gradient(var(--cyan), rgba(99, 215, 255, 0.05));
}

.timeline-item {
  position: relative;
  display: grid;
  grid-template-columns: 120px minmax(0, 1fr);
  gap: 26px;
  padding: 24px;
}

.timeline-item::before {
  content: "";
  position: absolute;
  left: 107px;
  top: 30px;
  width: 11px;
  height: 11px;
  border-radius: 50%;
  background: var(--cyan);
  box-shadow: 0 0 24px rgba(99, 215, 255, 0.8);
}

.timeline-item time {
  color: var(--cyan);
  font-weight: 800;
  font-size: 0.88rem;
}

.timeline-item h2 {
  margin: 7px 0 8px;
  font-size: 1.25rem;
}

.timeline-item p {
  margin-bottom: 0;
}

.tag {
  display: inline-flex;
  padding: 5px 9px;
  border-radius: 999px;
  font-size: 0.7rem;
  font-weight: 800;
  text-transform: uppercase;
  color: #04121f;
  background: var(--cyan);
}

.tag.paper {
  background: #9ddcff;
}

.tag.method {
  background: #8db4ff;
}

.tag.idea {
  background: #bfefff;
}

.tag.travel {
  background: #a7e6d8;
}

.tag.life {
  background: #d9edff;
}

.gallery-hero {
  background:
    linear-gradient(90deg, rgba(6, 17, 31, 0.94), rgba(6, 17, 31, 0.58)),
    url("../../images/meili.jpg") center 42% / cover no-repeat;
  border-bottom: 1px solid var(--line);
}

.gallery-quote {
  padding: 24px;
  backdrop-filter: blur(10px);
}

.gallery-quote p {
  margin-bottom: 0;
  color: var(--ice);
  font-size: 1.15rem;
}

.filter-tabs {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-bottom: 26px;
}

.filter-tabs button {
  min-height: 40px;
  padding: 0 14px;
  cursor: pointer;
  border: 1px solid var(--line);
  border-radius: 999px;
  color: var(--soft);
  background: rgba(255, 255, 255, 0.035);
  transition: background 180ms ease, color 180ms ease, border-color 180ms ease;
}

.filter-tabs button:hover,
.filter-tabs button.active {
  color: #03111f;
  border-color: transparent;
  background: var(--cyan);
}

.gallery-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 16px;
}

.gallery-category {
  margin-top: 34px;
}

.gallery-category:first-of-type {
  margin-top: 0;
}

.gallery-category-heading {
  margin-bottom: 16px;
}

.gallery-category-heading h2 {
  margin-bottom: 0;
  font-size: clamp(1.35rem, 2.5vw, 2rem);
}

.gallery-card {
  margin: 0;
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: rgba(9, 25, 41, 0.82);
}

.gallery-card[hidden] {
  display: none;
}

.gallery-open {
  width: 100%;
  padding: 0;
  overflow: hidden;
  cursor: zoom-in;
  border: 0;
  background: transparent;
}

.gallery-open img {
  width: 100%;
  aspect-ratio: 4 / 3;
  object-fit: cover;
  filter: saturate(0.78) contrast(1.08) brightness(0.9);
  transition: transform 360ms ease, filter 360ms ease;
}

.gallery-card:hover img {
  transform: scale(1.06);
  filter: saturate(0.95) contrast(1.1) brightness(1);
}

.gallery-card figcaption {
  padding: 13px 14px 15px;
}

.gallery-card strong,
.gallery-card span {
  display: block;
}

.gallery-card strong {
  color: var(--ice);
  font-size: 0.94rem;
}

.gallery-card span {
  margin-top: 4px;
  color: var(--muted);
  font-size: 0.8rem;
}

.lightbox {
  position: fixed;
  inset: 0;
  display: none;
  place-items: center;
  z-index: 50;
  padding: 58px 24px 34px;
  background: rgba(2, 7, 13, 0.92);
  backdrop-filter: blur(12px);
}

.lightbox[aria-hidden="false"] {
  display: grid;
}

.lightbox img {
  max-width: min(1100px, 94vw);
  max-height: 78vh;
  border-radius: var(--radius);
  border: 1px solid var(--line-strong);
  object-fit: contain;
  box-shadow: var(--shadow);
}

.lightbox-close {
  position: fixed;
  right: 24px;
  top: 20px;
  min-height: 40px;
  padding: 0 14px;
  cursor: pointer;
  border: 1px solid var(--line-strong);
  border-radius: 999px;
  color: var(--ice);
  background: rgba(255, 255, 255, 0.06);
}

.lightbox-caption {
  margin-top: 14px;
  text-align: center;
}

.lightbox-caption strong,
.lightbox-caption span {
  display: block;
}

.lightbox-caption span {
  margin-top: 4px;
  color: var(--muted);
}

.site-footer {
  padding: 34px 0 46px;
  border-top: 1px solid var(--line);
  background: rgba(4, 12, 22, 0.48);
}

.visitor-map {
  display: flex;
  justify-content: center;
}

.footer-grid {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
}

.site-footer p {
  margin-bottom: 0;
  color: var(--muted);
}

.footer-links {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
}

.footer-links a {
  color: var(--soft);
  font-size: 0.9rem;
}

@media (max-width: 980px) {
  .hero-grid,
  .gallery-hero-grid,
  .research-visual,
  .split,
  .detail-grid,
  .tri-grid {
    grid-template-columns: 1fr;
  }

  .interest-grid,
  .gallery-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .publication-card {
    grid-template-columns: 190px minmax(0, 1fr);
  }
}

@media (max-width: 720px) {
  .container,
  .narrow {
    width: min(100% - 28px, 1160px);
  }

  .nav {
    min-height: 66px;
  }

  .nav-toggle {
    display: block;
  }

  .nav-links {
    position: absolute;
    left: 14px;
    right: 14px;
    top: 66px;
    display: none;
    flex-direction: column;
    align-items: stretch;
    padding: 12px;
    border: 1px solid var(--line);
    border-radius: var(--radius);
    background: rgba(4, 12, 22, 0.96);
  }

  .nav-links.open {
    display: flex;
  }

  .nav-links a {
    border-radius: var(--radius);
  }

  .hero,
  .page-hero,
  .gallery-hero {
    padding: 54px 0 38px;
  }

  .section {
    padding: 48px 0;
  }

  .interest-grid,
  .gallery-grid,
  .publication-card {
    grid-template-columns: 1fr;
  }

  .publication-media img {
    max-height: 230px;
  }

  .timeline::before,
  .timeline-item::before {
    display: none;
  }

  .timeline-item {
    grid-template-columns: 1fr;
    gap: 10px;
    padding: 20px;
  }

  .footer-grid {
    align-items: flex-start;
    flex-direction: column;
  }
}