* {
  box-sizing: border-box;
}

:root {
  --text: #222;
  --muted: #555;
  --light-muted: #777;
  --border: #e5e5e5;
  --link: #9A4D5D;
  --background: #ffffff;
  --accent: #9A4D5D;
  --accent-dark: #743746;
}

body {
  margin: 0;
  font-family: "Inter", "Helvetica Neue", Arial, sans-serif;
  color: var(--text);
  background: var(--background);
  line-height: 1.75;
}

a {
  color: var(--link);
  text-decoration: none;
}

a:hover {
  text-decoration: underline;
}

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

/* Navigation */

.navbar {
  max-width: 1320px;
  margin: 0 auto;
  padding: 28px 32px 12px;
  display: flex;
  justify-content: center;
  align-items: center;
  flex-wrap: wrap;
  gap: 16px;
  position: relative;
}

.navbar a {
  color: #333;
  font-size: 19px;
  font-weight: 500;
  padding: 11px 17px;
  border-radius: 999px;
}

.navbar a:hover {
  background: #F3E4E8;
  color: var(--accent);
  text-decoration: none;
}

.navbar a.active {
  background: var(--accent);
  color: white;
}

/* Page */

.page {
  max-width: 1320px;
  margin: 0 auto;
  padding: 12px 32px 76px;
}

/* Intro section */

.intro-section {
  padding: 10px 0 58px;
}

.intro-section h1,
.page-title {
  text-align: center;
  font-size: 52px;
  font-weight: 500;
  margin: 0 0 54px;
  letter-spacing: -0.025em;
  line-height: 1.15;
}

.intro-content {
  display: grid;
  grid-template-columns: minmax(0, 1.08fr) minmax(300px, 0.92fr);
  gap: 46px;
  align-items: center;
}

.intro-text {
  padding-top: 0;
}

.intro-text p {
  font-size: 19px;
  color: #222;
  margin: 0 0 20px;
  text-align: left;
  line-height: 1.65;
}

.intro-image {
  display: flex;
  justify-content: center;
  align-items: center;
}

.intro-image img {
  width: 100%;
  max-width: 560px;
  height: auto;
  object-fit: contain;
}

/* Contact / collaboration block */

.connect-section {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 56px;
  align-items: center;
  margin: 22px 0 82px;
}

.connect-photo {
  display: flex;
  align-items: center;
  justify-content: center;
}

.connect-photo img {
  width: 310px;
  height: 310px;
  object-fit: cover;
  border-radius: 50%;
  box-shadow: 0 14px 30px rgba(0, 0, 0, 0.24);
}

.connect-box {
  background: transparent;
  padding: 0;
  border: none;
  display: flex;
  flex-direction: column;
  justify-content: center;
}

.connect-kicker {
  margin: 0 0 12px;
  font-size: 18px;
  letter-spacing: 0.07em;
  text-transform: uppercase;
  color: #6b7280;
  font-weight: 700;
}

.connect-box h2 {
  margin: 0 0 30px;
  font-size: 42px;
  font-weight: 500;
  letter-spacing: -0.035em;
  line-height: 1.16;
  color: #111;
  max-width: 620px;
}

.connect-icons {
  display: flex;
  align-items: center;
  gap: 24px;
}

.connect-icons a {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 60px;
  height: 60px;
  color: var(--accent);
  background: transparent;
  border: none;
  text-decoration: none;
  transition: transform 0.18s ease, color 0.18s ease, filter 0.18s ease;
}

.connect-icons a:hover {
  color: var(--accent-dark);
  transform: translateY(-2px);
  text-decoration: none;
}

.connect-icons i {
  font-size: 50px;
  width: auto;
  text-align: center;
}

/* Google Scholar image icon */

.scholar-icon {
  width: 65px;
  height: 65px;
  object-fit: contain;
  display: block;
  filter: brightness(0) saturate(100%) invert(36%) sepia(27%) saturate(876%) hue-rotate(297deg) brightness(91%) contrast(86%);
}

.connect-icons a:hover .scholar-icon {
  filter: brightness(0) saturate(100%) invert(36%) sepia(27%) saturate(876%) hue-rotate(297deg) brightness(91%) contrast(86%);
}

/* CV link below contact icons */

.cv-line {
  margin: 22px 0 0;
  font-size: 26px;
  color: #333;
}

.cv-line a {
  color: var(--accent);
  font-weight: 700;
  border-bottom: 2px solid var(--accent);
}

.cv-line a:hover {
  color: var(--accent-dark);
  border-bottom-color: var(--accent-dark);
  text-decoration: none;
}

/* Sections */

.section {
  margin-top: 74px;
}

.section-header {
  display: flex;
  justify-content: space-between;
  align-items: flex-end;
  gap: 24px;
  margin-bottom: 26px;
  border-bottom: 1px solid var(--border);
  padding-bottom: 14px;
}

.section-header h2 {
  margin: 0;
  font-size: 35px;
  font-weight: 500;
  letter-spacing: -0.025em;
}

.section-header a {
  font-size: 17px;
}

/* Research Preview */

.research-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.research-card {
  display: block;
  color: var(--text);
}

.research-card:hover {
  text-decoration: none;
}

.research-card video {
  width: 100%;
  height: 260px;
  object-fit: cover;
  background: #111;
  display: block;
  margin-bottom: 14px;
}

.research-card h3 {
  margin: 0;
  font-size: 25px;
  font-weight: 500;
  color: #9A4D5D;
  line-height: 1.35;
  text-align: center;
}

.research-card:hover video {
  opacity: 0.92;
}

/* Featured Publication */

.publication-box {
  padding: 24px 0;
}

.publication-box p {
  margin: 0 0 18px;
  font-size: 22px;
  color: #333;
  line-height: 1.7;
}

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

/* News */

.news-preview {
  padding: 24px 0;
}

.news-date {
  margin: 0 0 6px;
  font-size: 19px;
  font-weight: 600;
  color: #222;
}

.news-preview p {
  margin: 0;
  font-size: 21px;
  color: #444;
}

/* Footer */

footer {
  border-top: 1px solid var(--border);
  text-align: center;
  padding: 30px 20px;
  font-size: 15px;
  color: #777;
}

/* Mobile */

@media (max-width: 900px) {
  .navbar {
    gap: 10px;
  }

  .navbar a {
    font-size: 16px;
    padding: 8px 12px;
  }

  .intro-section h1,
  .page-title {
    font-size: 40px;
    margin-bottom: 36px;
  }
  
  .intro-content {
    display: flex;
    flex-direction: column;
    gap: 30px;
  }

  .intro-image {
    order: 1;
  }

  .intro-text {
    order: 2;
    padding-top: 0;
  }

  .intro-image img {
    width: 100%;
    max-width: 520px;
    height: auto;
    margin: 0 auto;
  }

  .intro-text p {
    font-size: 16px;
    text-align: left;
  }

  .connect-section {
    grid-template-columns: 1fr;
    gap: 32px;
    margin: 22px 0 62px;
  }

  .connect-photo {
    justify-content: center;
  }

  .connect-photo img {
    width: 230px;
    height: 230px;
  }

  .connect-box {
    text-align: center;
    align-items: center;
  }

  .connect-kicker {
    font-size: 15px;
  }

  .connect-box h2 {
    font-size: 30px;
    max-width: none;
  }

  .connect-icons {
    justify-content: center;
    gap: 20px;
  }

  .connect-icons a {
    width: 38px;
    height: 38px;
  }

  .connect-icons i {
    font-size: 31px;
  }

  .scholar-icon {
    width: 31px;
    height: 31px;
  }

  .cv-line {
    font-size: 18px;
  }

  .research-grid {
    grid-template-columns: 1fr;
  }

  .research-card video {
    height: 250px;
  }

  .research-card h3 {
    font-size: 20px;
  }

  .section-header {
    flex-direction: column;
    align-items: flex-start;
    gap: 8px;
  }

  .section-header h2 {
    font-size: 28px;
  }

  .references-grid {
    grid-template-columns: 1fr;
    column-gap: 0;
  }

  .reference-card h3 {
    font-size: 20px;
  }

  .reference-card h3 span {
    display: block;
    margin-left: 0;
    margin-top: 3px;
    font-size: 16px;
  }

  .reference-card p {
    font-size: 16px;
  }
}

/* Research Page */

.research-hero {
  padding: 10px 0 18px;
}

.research-page {
  max-width: 1320px;
  margin: 0 auto;
}

.research-item {
  margin-bottom: 64px;
}

.research-item-title {
  width: 100%;
  margin: 0 0 26px;
  padding: 0;
  text-align: left;
  font-size: 34px;
  font-weight: 500;
  line-height: 1.25;
  letter-spacing: -0.025em;
  color: #743746;
  background: transparent;
  border-radius: 0;
}

/* Desktop layout */

.research-item-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 36px;
  align-items: center;
}

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

/* First item uses one-column image/text layout on desktop */

.research-item-grid.stacked {
  grid-template-columns: 1fr;
  gap: 22px;
}

.research-image {
  width: 100%;
  min-width: 0;
}

.research-image img {
  width: 100%;
  height: auto;
  max-height: none;
  object-fit: contain;
  display: block;
  border-radius: 4px;
}

.research-item-grid.stacked .research-image img {
  width: 100%;
  max-height: 520px;
  object-fit: contain;
}

.research-text {
  width: 100%;
  min-width: 0;
  padding: 0;
  border: none;
  border-radius: 0;
  background: transparent;
  display: block;
}

.research-text p {
  margin: 0;
  font-size: 22px;
  line-height: 1.7;
  color: #333;
  text-align: left;
}

.research-text p + p {
  margin-top: 22px;
}

/* First research item: keep same font size as others, only allow multiple paragraphs */

.research-transport .research-text {
  display: block;
  width: 100%;
}

.research-transport .research-text p {
  font-size: 22px;
  line-height: 1.7;
  text-align: left;
}

/* Research Page - Mobile */

@media (max-width: 900px) {
  .research-hero {
    padding: 10px 0 10px;
  }

  .research-item {
    margin-bottom: 56px;
  }

  .research-item-title {
    font-size: 28px;
    line-height: 1.25;
    margin: 0 0 18px;
    padding: 0;
    text-align: left;
  }

  .research-item-grid,
  .research-item-grid.reverse,
  .research-item-grid.stacked {
    display: flex;
    flex-direction: column;
    gap: 18px;
  }

  /* Mobile: always image first, text second */

  .research-item-grid .research-image,
  .research-item-grid.reverse .research-image,
  .research-item-grid.stacked .research-image {
    order: 1;
  }

  .research-item-grid .research-text,
  .research-item-grid.reverse .research-text,
  .research-item-grid.stacked .research-text {
    order: 2;
  }

  .research-image,
  .research-image img,
  .research-item-grid.stacked .research-image img {
    width: 100%;
  }

  .research-image img,
  .research-item-grid.stacked .research-image img {
    height: auto;
    max-height: none;
    object-fit: contain;
    display: block;
  }

  .research-text,
  .research-item-grid.stacked .research-text,
  .research-transport .research-text {
    width: 100%;
    max-width: none;
    padding: 0;
    display: block;
  }

  .research-page .research-text p,
  .research-page .research-item-grid.stacked .research-text p,
  .research-page .research-transport .research-text p {
    margin: 0;
    font-size: 16px;
    line-height: 1.7;
    text-align: left;
  }

  .research-page .research-text p + p,
  .research-page .research-transport .research-text p + p {
    margin-top: 18px;
  }
}

.author-highlight {
  color: var(--accent);
  font-weight: 700;
}

/* Publications Page */

.publication-page {
  max-width: 1320px;
}

.publication-search {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 320px;
  gap: 34px;
  align-items: center;
  margin: 10px 0 44px;
}

.publication-search input {
  width: 100%;
  height: 60px;
  padding: 0 18px;
  border: 1px solid var(--border);
  border-radius: 4px;
  font-family: inherit;
  font-size: 17px;
  color: var(--text);
  outline: none;
}

.publication-search input:focus {
  border-color: var(--accent);
  box-shadow: 0 0 0 3px rgba(154, 77, 93, 0.12);
}

.publication-search input::placeholder {
  color: #a0a7b0;
}

.publication-search button {
  height: 56px;
  border: 1px solid #444;
  border-radius: 4px;
  background: #fff;
  color: #222;
  font-family: inherit;
  font-size: 16px;
  letter-spacing: 0.02em;
  cursor: pointer;
  transition: background 0.18s ease, color 0.18s ease, border-color 0.18s ease;
}

.publication-search button:hover {
  background: var(--accent);
  border-color: var(--accent);
  color: white;
}

.publication-no-results {
  margin: 34px 0;
  font-size: 20px;
  color: var(--muted);
}

.publication-section {
  margin: 58px 0 76px;
}

.publication-section-title,
.publication-year {
  margin: 0 0 34px;
  font-size: 35px;
  font-weight: 500;
  letter-spacing: -0.025em;
  line-height: 1.2;
  color: #222;
}

.publication-entry {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 118px;
  gap: 34px;
  align-items: start;
  padding: 0 0 30px;
  margin: 0 0 34px;
  border-bottom: 1px solid #f0f0f0;
}

.publication-entry.no-thumb {
  grid-template-columns: minmax(0, 1fr);
  max-width: 1040px;
}

.publication-main h3 {
  margin: 0 0 8px;
  font-size: 22px;
  font-weight: 500;
  line-height: 1.45;
  color: #111;
}

.publication-authors,
.publication-venue,
.publication-note {
  margin: 0 0 7px;
  font-size: 19px;
  line-height: 1.55;
}

.publication-authors {
  color: #777;
}

.publication-venue {
  color: #555;
}

.publication-note {
  color: #777;
  font-size: 17px;
}

.publication-buttons {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 12px;
}

.publication-buttons a {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 72px;
  height: 42px;
  padding: 0 18px;
  border: 1px solid #444;
  border-radius: 4px;
  color: #222;
  background: #fff;
  font-size: 13px;
  font-weight: 500;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

.publication-buttons a:hover {
  background: var(--accent);
  border-color: var(--accent);
  color: #fff;
  text-decoration: none;
}

.publication-thumb {
  justify-self: end;
  width: 150px;
  height: 150px;
  border: 1px solid var(--border);
  border-radius: 6px;
  overflow: hidden;
  background: #f7f7f7;
}

.publication-thumb img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.conference-section {
  margin-top: 88px;
}

.conference-year {
  margin: 38px 0 18px;
  font-size: 28px;
  font-weight: 500;
  letter-spacing: -0.02em;
  color: #333;
}

.conference-entry {
  padding-bottom: 20px;
  margin-bottom: 22px;
}

.conference-entry .publication-main h3 {
  font-size: 19px;
}

[hidden] {
  display: none !important;
}

@media (max-width: 900px) {
  .publication-search {
    grid-template-columns: 1fr;
    gap: 14px;
  }

  .publication-search button {
    width: 100%;
  }

  .publication-section-title,
  .publication-year {
    font-size: 30px;
  }

  .publication-entry {
    grid-template-columns: minmax(0, 1fr) 86px;
    gap: 18px;
  }

  .publication-thumb {
    width: 82px;
    height: 82px;
  }

  .publication-main h3 {
    font-size: 20px;
  }

  .publication-authors,
  .publication-venue,
  .publication-note {
    font-size: 17px;
  }
}

@media (max-width: 560px) {
  .publication-entry {
    grid-template-columns: 1fr;
  }

  .publication-thumb {
    justify-self: start;
  }
}

/* Experimental Skills Page */

.skill-page {
  max-width: 1320px;
  margin: 0 auto;
}

.skill-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 54px 42px;
}

.skill-card {
  min-width: 0;
}

.skill-card img {
  width: 100%;
  height: 540px;
  object-fit: cover;
  display: block;
  border-radius: 4px;
  margin-bottom: 18px;
  background: #fff;
}

.skill-card h2 {
  margin: 0 0 8px;
  font-size: 28px;
  font-weight: 500;
  line-height: 1.3;
  letter-spacing: -0.025em;
  color: #743746;
}

.skill-card p {
  margin: 0;
  font-size: 18px;
  line-height: 1.65;
  color: #333;
  text-align: left;
}

@media (max-width: 900px) {
  .skill-grid {
    grid-template-columns: 1fr;
    gap: 42px;
  }

  .skill-card img {
    height: 260px;
  }

  .skill-card h2 {
    font-size: 24px;
  }

  .skill-card p {
    font-size: 16px;
  }
}

/* Photos Page */

.photos-page {
  max-width: 1320px;
  margin: 0 auto;
}

.photo-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 26px;
}

.photo-card {
  position: relative;
  width: 100%;
  aspect-ratio: 1 / 1;
  padding: 0;
  border: none;
  border-radius: 4px;
  overflow: hidden;
  cursor: pointer;
  background: #f7f7f7;
  display: block;
}

.photo-card img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
  transition: opacity 0.22s ease, transform 0.22s ease;
}

.photo-card-title {
  position: absolute;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 22px;
  text-align: center;
  color: #fff;
  font-size: 26px;
  font-weight: 700;
  line-height: 1.25;
  letter-spacing: -0.02em;
  opacity: 0;
  background: rgba(0, 0, 0, 0.28);
  transition: opacity 0.22s ease;
}

.photo-card:hover img,
.photo-card:focus-visible img,
.photo-card.is-active img {
  opacity: 0.52;
  transform: scale(1.02);
}

.photo-card:hover .photo-card-title,
.photo-card:focus-visible .photo-card-title,
.photo-card.is-active .photo-card-title {
  opacity: 1;
}

.photo-card:focus-visible {
  outline: 3px solid rgba(154, 77, 93, 0.45);
  outline-offset: 4px;
}

@media (max-width: 900px) {
  .photo-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 18px;
  }

  .photo-card-title {
    font-size: 22px;
  }
}

@media (max-width: 560px) {
  .photo-grid {
    grid-template-columns: 1fr;
  }

  .photo-card-title {
    font-size: 21px;
  }
}

/* News Page */

.news-page {
  max-width: 1320px;
  margin: 0 auto;
}

.news-list {
  display: flex;
  flex-direction: column;
  gap: 34px;
}

.news-item {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 28px;
  align-items: center;
  padding: 0 0 28px;
  border-bottom: 1px solid var(--border);
}

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

.news-content h2 {
  margin: 0 0 8px;
  font-size: 24px;
  font-weight: 700;
  line-height: 1.35;
  color: #444;
  letter-spacing: -0.015em;
}

.news-content p {
  margin: 0;
  font-size: 23px;
  line-height: 1.55;
  color: #444;
}

.news-image {
  width: 150px;
  height: 110px;
  object-fit: cover;
  border-radius: 4px;
  background: #f7f7f7;
}

@media (max-width: 768px) {
  .news-item,
  .news-item.has-image {
    grid-template-columns: 1fr;
    gap: 16px;
  }

  .news-content h2 {
    font-size: 21px;
  }

  .news-content p {
    font-size: 18px;
  }

  .news-image {
    width: 100%;
    height: auto;
    max-height: 240px;
  }
}

/* ---------- Navbar site symbol ---------- */

.site-logo {
  position: absolute;
  left: 100px;
  top: 65%;
  transform: translateY(-50%);

  display: flex;
  align-items: center;
  justify-content: center;

  padding: 0;
  pointer-events: none;
  z-index: 1;
}

.site-logo img {
  width: 90px;
  height: 90px;
  object-fit: contain;
  display: block;
}

/* ---------- Mobile navbar symbol control ---------- */

@media (max-width: 900px) {
  .site-logo {
    display: none;
  }

  body.home-page .site-logo {
    position: static;
    transform: none;
    flex-basis: 100%;
    display: flex;
    justify-content: center;
    margin-bottom: 4px;
    pointer-events: none;
  }

  body.home-page .site-logo img {
    width: 72px;
    height: 72px;
  }
}