:root {
  --bg: #f6f8fb;
  --surface: #ffffff;
  --text: #142033;
  --muted: #5c667a;
  --line: #dde5f1;
  --accent: #2354d6;
  --accent-2: #0f766e;
  --accent-soft: #eaf0ff;
  --shadow: 0 18px 50px rgba(20, 32, 51, 0.10);
  --radius: 24px;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  color: var(--text);
  background:
    radial-gradient(circle at top left, rgba(35, 84, 214, 0.13), transparent 28rem),
    radial-gradient(circle at 80% 10%, rgba(15, 118, 110, 0.10), transparent 28rem),
    linear-gradient(180deg, #ffffff 0%, var(--bg) 42%);
  line-height: 1.65;
}

a { color: inherit; }
img { max-width: 100%; }

.site-header {
  position: sticky;
  top: 0;
  z-index: 20;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 2rem;
  padding: 1rem clamp(1rem, 4vw, 4rem);
  background: rgba(255, 255, 255, 0.88);
  backdrop-filter: blur(18px);
  border-bottom: 1px solid rgba(221, 229, 241, 0.85);
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 0.75rem;
  font-weight: 850;
  text-decoration: none;
  letter-spacing: -0.02em;
  white-space: nowrap;
}

.brand-mark {
  display: inline-grid;
  place-items: center;
  width: 2.6rem;
  height: 2.6rem;
  border-radius: 0.95rem;
  background: var(--accent);
  color: #ffffff;
  font-size: 0.9rem;
}

.nav {
  display: flex;
  flex-wrap: wrap;
  justify-content: flex-end;
  gap: 1rem;
  color: var(--muted);
  font-size: 0.95rem;
}
.nav a { text-decoration: none; }
.nav a:hover { color: var(--accent); }

main { width: min(1150px, calc(100% - 2rem)); margin: 0 auto; }

.hero {
  display: grid;
  grid-template-columns: minmax(0, 1.08fr) minmax(310px, 0.92fr);
  align-items: center;
  gap: clamp(2rem, 6vw, 5rem);
  min-height: 74vh;
  padding: 5rem 0 4rem;
}

.eyebrow {
  margin: 0 0 0.9rem;
  color: var(--accent);
  text-transform: uppercase;
  letter-spacing: 0.14em;
  font-size: 0.72rem;
  font-weight: 850;
}

h1, h2, h3 { margin: 0; line-height: 1.12; letter-spacing: -0.04em; }
h1 { font-size: clamp(2.55rem, 6vw, 5.1rem); }
h2 { font-size: clamp(2rem, 4vw, 3.1rem); }
h3 { font-size: 1.28rem; }

.hero-text {
  margin: 1.4rem 0 0;
  max-width: 45rem;
  color: var(--muted);
  font-size: 1.14rem;
}

.hero-actions { display: flex; flex-wrap: wrap; gap: 0.85rem; margin-top: 2rem; }
.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 3rem;
  padding: 0 1.15rem;
  border-radius: 999px;
  text-decoration: none;
  font-weight: 850;
  border: 1px solid transparent;
}
.button.primary { background: var(--accent); color: #fff; box-shadow: 0 14px 32px rgba(35, 84, 214, 0.25); }
.button.primary:hover { background: #173fa5; }
.button.secondary { background: #fff; border-color: var(--line); }

.hero-card, .content-card, .project-card, .skill-card, .figure-card {
  background: rgba(255, 255, 255, 0.90);
  border: 1px solid rgba(221, 229, 241, 0.95);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
}

.hero-card { padding: 1.25rem; }
.hero-card img { display: block; width: 100%; border-radius: calc(var(--radius) - 0.5rem); background: var(--accent-soft); }

.stat-grid { display: grid; gap: 0.75rem; margin-top: 1rem; }
.stat-grid div { padding: 1rem; border: 1px solid var(--line); border-radius: 1rem; background: #fff; }
.stat-grid strong, .stat-grid span { display: block; }
.stat-grid strong { color: var(--accent); }
.stat-grid span { color: var(--muted); font-size: 0.95rem; }

.section { padding: 4rem 0; }
.section-heading { display: grid; grid-template-columns: minmax(0, 0.75fr) minmax(0, 1.25fr); gap: 2rem; align-items: end; margin-bottom: 1.5rem; }
.section-heading p:last-child { margin: 0; color: var(--muted); }
.content-card { padding: clamp(1.25rem, 3vw, 2rem); }
.content-card p { margin: 0 0 1rem; color: var(--muted); }
.content-card p:last-child { margin-bottom: 0; }

.project-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 1rem; }
.project-card { padding: 1.35rem; display: flex; flex-direction: column; gap: 0.95rem; }
.project-card p { margin: 0; color: var(--muted); }
.tag-row { display: flex; flex-wrap: wrap; gap: 0.45rem; }
.tag-row span { padding: 0.32rem 0.62rem; border-radius: 999px; background: var(--accent-soft); color: var(--accent); font-size: 0.78rem; font-weight: 800; }
.text-link { margin-top: auto; color: var(--accent); font-weight: 850; text-decoration: none; }
.text-link:hover { text-decoration: underline; }

.publication-list { display: grid; gap: 1rem; }
.publication h3 { margin-bottom: 0.5rem; }
.authors { font-size: 0.96rem; }
.publication-meta { color: var(--muted); }

.skills-grid { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 1rem; }
.skill-card { padding: 1.2rem; }
.skill-card p { margin: 0.75rem 0 0; color: var(--muted); font-size: 0.98rem; }

.contact-links { display: flex; flex-wrap: wrap; gap: 0.75rem; margin-top: 1.25rem; }
.contact-links a { padding: 0.7rem 1rem; border-radius: 999px; background: var(--accent-soft); color: var(--accent); font-weight: 850; text-decoration: none; }


.profile-card {
  width: min(100%, 360px);
  justify-self: center;
  overflow: hidden;
  padding: 1.1rem;
}
.profile-photo {
  width: min(100%, 320px);
  max-height: 330px;
  margin: 0 auto;
  object-fit: contain;
  display: block;
  border-radius: calc(var(--radius) - 0.5rem);
  background: #fff;
  border: 1px solid var(--line);
}
.resume-grid, .media-grid, .news-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1rem;
}
.resume-card, .media-card, .news-card {
  padding: 1.25rem;
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}
.resume-card p, .media-card p, .news-card p { margin: 0; color: var(--muted); }
.resume-card .button, .media-card .button { margin-top: auto; }
.publication-list .content-card { padding: 1.25rem 1.4rem; }
.publication-links { display: flex; flex-wrap: wrap; gap: 0.6rem; margin-top: 0.75rem; }
.publication-links a { color: var(--accent); font-weight: 800; text-decoration: none; }
.publication-links a:hover { text-decoration: underline; }

.news-card h3 { margin: 0.2rem 0 0.65rem; }
.news-date { color: var(--accent) !important; font-size: 0.8rem; font-weight: 800; letter-spacing: 0.08em; text-transform: uppercase; }


.logo-list {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 1rem;
}
.experience-list {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1rem;
}
.logo-card, .experience-card {
  display: grid;
  grid-template-columns: 86px 1fr;
  gap: 1rem;
  align-items: center;
  padding: 1.25rem;
}
.logo-card img, .experience-card img {
  width: 74px;
  height: 74px;
  object-fit: contain;
  border-radius: 1rem;
  border: 1px solid var(--line);
  background: #fff;
  padding: 0.35rem;
}
.logo-card h3, .experience-card h3 { margin: 0 0 0.25rem; }
.logo-card p, .experience-card p { margin: 0.15rem 0; color: var(--muted); }
.publication-category { margin-top: 1.4rem; }
.publication-category:first-child { margin-top: 0; }
.publication-category h3 {
  margin: 0 0 0.75rem;
  color: var(--accent);
  font-size: 1.05rem;
  letter-spacing: 0.02em;
  text-transform: uppercase;
}
@media (max-width: 850px) {
  .logo-list { grid-template-columns: 1fr; }
  .logo-card, .experience-card { grid-template-columns: 70px 1fr; }
  .logo-card img, .experience-card img { width: 60px; height: 60px; }
}

.site-footer { padding: 2.5rem 1rem 3.5rem; text-align: center; color: var(--muted); }

.project-page { padding: 3rem 0 5rem; }
.back-link { display: inline-block; margin-bottom: 1.5rem; color: var(--accent); text-decoration: none; font-weight: 850; }
.project-hero { padding: 2rem; border-radius: var(--radius); background: linear-gradient(135deg, #ffffff 0%, #eef4ff 100%); border: 1px solid var(--line); box-shadow: var(--shadow); }
.project-hero h1 { font-size: clamp(2.2rem, 5vw, 4.2rem); max-width: 58rem; }
.project-hero p:not(.eyebrow) { max-width: 60rem; color: var(--muted); font-size: 1.08rem; }
.project-body { display: grid; gap: 1.25rem; margin-top: 1.25rem; }
.project-body h2 { font-size: clamp(1.55rem, 3vw, 2.3rem); margin-bottom: 1rem; }
.project-body h3 { margin-top: 1.2rem; }
.project-body ul { margin: 0.75rem 0 0; padding-left: 1.2rem; color: var(--muted); }
.project-body li + li { margin-top: 0.45rem; }
.project-body p { color: var(--muted); }
.two-column { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 1rem; }
.figure-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 1rem; }
.figure-card { padding: 1.1rem; }
.figure-placeholder { min-height: 190px; border-radius: 1rem; background: linear-gradient(135deg, #eef4ff, #f7fbff); border: 1px dashed #aebde0; display: grid; place-items: center; color: var(--accent); font-weight: 850; text-align: center; padding: 1rem; }
.caption { margin: 0.75rem 0 0; color: var(--muted); font-size: 0.92rem; }
.callout { border-left: 5px solid var(--accent); background: #f8fbff; }
.note { font-size: 0.92rem; color: var(--muted); }

@media (max-width: 850px) {
  .site-header { align-items: flex-start; flex-direction: column; gap: 0.8rem; }
  .nav { justify-content: flex-start; }
  .hero, .section-heading, .two-column { grid-template-columns: 1fr; }
  .hero { min-height: auto; padding-top: 3rem; }
  .project-grid, .skills-grid, .figure-grid, .resume-grid, .media-grid, .news-grid { grid-template-columns: 1fr; }
}

.figure-card img {
  width: 100%;
  max-height: 380px;
  object-fit: contain;
  display: block;
  border-radius: 1rem;
  border: 1px solid var(--line);
  background: #fff;
}
.project-thumb {
  width: 100%;
  height: 175px;
  object-fit: contain;
  border-radius: 1rem;
  border: 1px solid var(--line);
  background: #fff;
  padding: 0.35rem;
  margin-bottom: 0.2rem;
}

.project-page .figure-card img {
  max-height: 520px;
}

@media (min-width: 851px) {
  .figure-grid .wide-figure { grid-column: auto; }
  .figure-grid .wide-figure img { max-height: 520px; }
}


.project-affiliation {
  margin: 0.35rem 0 0.65rem;
  color: var(--text-muted);
  font-size: 0.92rem;
  line-height: 1.5;
}

.project-affiliation strong {
  color: var(--text-main);
}

.project-page-affiliation {
  display: inline-block;
  padding: 0.5rem 0.75rem;
  border: 1px solid var(--border);
  border-radius: 999px;
  background: var(--surface-soft);
}


.publication-accordion-list {
  display: grid;
  gap: 1rem;
}

.publication-accordion {
  border: 1px solid var(--line);
  border-radius: 1.25rem;
  background: var(--card);
  box-shadow: var(--shadow);
  overflow: hidden;
}

.publication-accordion summary {
  cursor: pointer;
  list-style: none;
  padding: 1.1rem 1.25rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  font-weight: 800;
  color: var(--text);
}

.publication-accordion summary::-webkit-details-marker {
  display: none;
}

.publication-accordion summary::after {
  content: "+";
  width: 2rem;
  height: 2rem;
  border-radius: 999px;
  border: 1px solid var(--line);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  color: var(--accent);
  font-size: 1.25rem;
  flex: 0 0 auto;
}

.publication-accordion[open] summary::after {
  content: "−";
}

.publication-accordion .publication-list {
  padding: 0 1.25rem 1.25rem;
}

.accordion-count {
  margin-left: auto;
  color: var(--muted);
  font-weight: 700;
  font-size: 0.92rem;
}

.scholar-card {
  margin-top: 1rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
}

.scholar-card h3,
.scholar-card p {
  margin: 0;
}

@media (max-width: 700px) {
  .publication-accordion summary {
    align-items: flex-start;
  }

  .scholar-card {
    align-items: flex-start;
    flex-direction: column;
  }
}

/* Training / Certifications */
.certification-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1rem;
}

.certification-card {
  display: flex;
  flex-direction: column;
  gap: 0.85rem;
  align-self: start;
}

.certification-card p {
  margin: 0;
  color: var(--muted);
}

.certification-skills {
  padding: 0.95rem 1rem;
  border: 1px solid var(--line);
  border-radius: 1rem;
  background: #fff;
}

.certification-skills h4 {
  margin: 0 0 0.55rem;
  color: var(--accent);
  font-size: 0.92rem;
  line-height: 1.2;
  letter-spacing: 0.02em;
}

.certification-skills ul {
  margin: 0;
  padding-left: 1.15rem;
  color: var(--muted);
}

.certification-skills li + li {
  margin-top: 0.25rem;
}

.certification-link {
  display: block;
  position: relative;
  width: min(100%, 360px);
  margin: 0.25rem auto 0;
  border: 1px solid var(--line);
  border-radius: 1rem;
  overflow: hidden;
  background: #fff;
  text-decoration: none;
}

.certification-link::after {
  content: "View full screen";
  position: absolute;
  right: 0.55rem;
  bottom: 0.55rem;
  padding: 0.28rem 0.55rem;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.92);
  border: 1px solid var(--line);
  color: var(--accent);
  font-size: 0.72rem;
  font-weight: 850;
  box-shadow: 0 8px 20px rgba(20, 32, 51, 0.10);
}

.certification-link:hover {
  border-color: var(--accent);
  box-shadow: 0 16px 32px rgba(20, 32, 51, 0.12);
}

.certification-image {
  display: block;
  width: 100%;
  height: auto;
  object-fit: contain;
  background: #fff;
}

@media (max-width: 850px) {
  .certification-grid {
    grid-template-columns: 1fr;
  }

  .certification-link {
    width: min(100%, 330px);
  }

  .certification-image {
    height: auto;
    max-height: none;
  }
}


body.certificate-modal-open {
  overflow: hidden;
}

.certificate-modal {
  position: fixed;
  inset: 0;
  z-index: 1000;
  display: none;
  align-items: center;
  justify-content: center;
  padding: clamp(0.75rem, 2vw, 1.5rem);
  background: rgba(246, 248, 251, 0.98);
}

.certificate-modal.is-open {
  display: flex;
}

.certificate-modal-panel {
  width: min(1220px, 96vw);
  max-height: 96vh;
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
  padding: 1rem;
  background: #fff;
  border: 1px solid var(--line);
  border-radius: 1.2rem;
  box-shadow: 0 24px 70px rgba(20, 32, 51, 0.20);
}

.certificate-modal-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
}

.certificate-modal-header h2 {
  font-size: clamp(1rem, 2.4vw, 1.35rem);
  letter-spacing: -0.02em;
}

.certificate-modal-close {
  width: 2.65rem;
  height: 2.65rem;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: #fff;
  color: var(--text);
  font-size: 1.55rem;
  line-height: 1;
  cursor: pointer;
}

.certificate-modal-close:hover {
  border-color: var(--accent);
  color: var(--accent);
}

.certificate-modal-image {
  display: block;
  width: auto;
  height: auto;
  max-width: 100%;
  max-height: calc(96vh - 5.5rem);
  margin: 0 auto;
  object-fit: contain;
  border: 1px solid var(--line);
  border-radius: 0.9rem;
  background: #fff;
}

@media (max-width: 700px) {
  .certificate-modal-panel {
    padding: 0.75rem;
  }

  .certificate-modal-image {
    max-height: calc(96vh - 5rem);
  }
}

/* Certificate thumbnail links - fixed to remove black gaps and make the image itself clickable */
.certification-link {
  display: block;
  width: min(100%, 260px);
  max-width: 260px;
  margin: 0.25rem auto 0;
  line-height: 0;
  padding: 0;
  border: 0;
  border-radius: 1rem;
  overflow: visible;
  background: transparent;
  text-decoration: none;
  cursor: pointer;
}

.certification-link::after {
  content: none !important;
  display: none !important;
}

.certification-link:focus-visible {
  outline: 3px solid var(--accent);
  outline-offset: 4px;
}

.certification-image {
  display: block;
  width: 100%;
  height: auto;
  max-height: none;
  object-fit: contain;
  background: #fff;
  border: 1px solid var(--line);
  border-radius: 1rem;
  box-shadow: 0 10px 24px rgba(20, 32, 51, 0.10);
}

.certification-link:hover .certification-image {
  border-color: var(--accent);
  box-shadow: 0 16px 32px rgba(20, 32, 51, 0.16);
}

/* Compact certificate links on the portfolio; full certificates remain available on their own pages. */
.certification-card .certification-link {
  display: inline;
  width: auto;
  max-width: none;
  padding: 0;
  border: 0;
  border-radius: 0;
  background: transparent;
  box-shadow: none;
}

.certification-card .certification-link:hover {
  border: 0;
  box-shadow: none;
}

@media (max-width: 850px) {
  .certification-link {
    width: min(100%, 240px);
    max-width: 240px;
  }
}

/* Full-screen certificate pages */
.certificate-full-page {
  width: min(1280px, calc(100% - 2rem));
  min-height: 100vh;
  margin: 0 auto;
  padding: 2rem 0 3rem;
}

.certificate-full-card {
  background: #fff;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: clamp(1rem, 2vw, 1.5rem);
}

.certificate-full-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  margin-bottom: 1rem;
}

.certificate-full-header h1 {
  font-size: clamp(1.25rem, 3vw, 2.25rem);
  letter-spacing: -0.03em;
}

.certificate-full-image {
  display: block;
  width: auto;
  height: auto;
  max-width: 100%;
  max-height: calc(100vh - 8.5rem);
  margin: 0 auto;
  object-fit: contain;
  background: #fff;
  border: 1px solid var(--line);
  border-radius: 1rem;
}

@media (max-width: 700px) {
  .certificate-full-header {
    align-items: flex-start;
    flex-direction: column;
  }

  .certificate-full-image {
    max-height: none;
  }
}