/* ---------- Reset & base ---------- */
* { margin: 0; padding: 0; box-sizing: border-box; }

:root {
  --baby-blue: #aee1f9;
  --baby-blue-soft: #d9f0fc;
  --baby-blue-deep: #6fb8e0;
  --navy-accent: #1f3a5f;
  --ink: #2b3a4a;
  --ink-soft: #5c7180;
  --paper: #fbfeff;
  --paper-alt: #eef8fd;
  --radius-lg: 24px;
  --radius-md: 16px;
  --shadow-soft: 0 12px 30px rgba(111, 184, 224, 0.25);
  --shadow-card: 0 6px 20px rgba(111, 184, 224, 0.18);
  --max-width: 1080px;
}

html {
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
  text-size-adjust: 100%;
}

body {
  font-family: 'Poppins', -apple-system, BlinkMacSystemFont, sans-serif;
  color: var(--ink);
  background: var(--paper);
  overflow-x: hidden;
  line-height: 1.6;
}

h1, h2, h3 {
  font-family: 'Fraunces', Georgia, serif;
  font-weight: 600;
}

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

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

section {
  scroll-margin-top: 90px;
}

/* ---------- Background blobs ---------- */
.bg-blobs {
  position: fixed;
  inset: 0;
  z-index: -1;
  overflow: hidden;
  pointer-events: none;
}
.blob {
  position: absolute;
  border-radius: 50%;
  filter: blur(60px);
  opacity: 0.5;
}
.blob-1 {
  width: 420px; height: 420px;
  background: var(--baby-blue);
  top: -120px; left: -100px;
}
.blob-2 {
  width: 500px; height: 500px;
  background: var(--navy-accent);
  top: 30%; right: -180px;
  opacity: 0.12;
}
.blob-3 {
  width: 380px; height: 380px;
  background: var(--baby-blue-soft);
  bottom: -140px; left: 20%;
}

/* ---------- Nav ---------- */
.nav-wrap {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(251, 254, 255, 0.75);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border-bottom: 1px solid rgba(111, 184, 224, 0.25);
}

.nav {
  max-width: var(--max-width);
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 16px 28px;
}

.nav-logo {
  font-family: 'Fraunces', serif;
  font-weight: 600;
  font-size: 1.3rem;
  color: var(--navy-accent);
  letter-spacing: 0.03em;
}

.nav-links {
  list-style: none;
  display: flex;
  gap: 30px;
}

.nav-links a {
  font-size: 0.92rem;
  font-weight: 500;
  color: var(--ink-soft);
  position: relative;
  padding-bottom: 4px;
  transition: color 0.25s ease;
}

.nav-links a::after {
  content: '';
  position: absolute;
  left: 0; bottom: 0;
  width: 0%;
  height: 2px;
  background: var(--navy-accent);
  transition: width 0.25s ease;
}

.nav-links a:hover {
  color: var(--navy-accent);
}
.nav-links a:hover::after {
  width: 100%;
}

.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 6px;
}
.nav-toggle span {
  width: 24px;
  height: 2.5px;
  background: var(--navy-accent);
  border-radius: 2px;
  transition: transform 0.25s ease, opacity 0.25s ease;
}

/* ---------- Hero ---------- */
.hero {
  max-width: 720px;
  margin: 0 auto;
  padding: 90px 24px 100px;
  text-align: center;
  display: flex;
  flex-direction: column;
  align-items: center;
}

.hero-photo-wrap {
  width: 180px;
  height: 180px;
  border-radius: 50%;
  padding: 6px;
  background: linear-gradient(135deg, var(--baby-blue), var(--navy-accent));
  box-shadow: var(--shadow-soft);
  margin-bottom: 28px;
}

.hero-photo {
  width: 100%;
  height: 100%;
  object-fit: cover;
  border-radius: 50%;
  border: 4px solid var(--paper);
}

.photo-placeholder {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 8px;
  background: linear-gradient(135deg, var(--baby-blue-soft), var(--baby-blue));
  color: var(--navy-accent);
}
.photo-placeholder svg {
  width: 44px;
  height: 44px;
}
.photo-placeholder span {
  font-size: 0.8rem;
  font-weight: 500;
}

.hero-name {
  font-size: 2.6rem;
  color: var(--ink);
  margin-bottom: 18px;
}

.wave {
  display: inline-block;
  animation: wave 2.4s ease-in-out infinite;
  transform-origin: 70% 70%;
}
@keyframes wave {
  0%, 60%, 100% { transform: rotate(0deg); }
  10% { transform: rotate(14deg); }
  20% { transform: rotate(-8deg); }
  30% { transform: rotate(14deg); }
  40% { transform: rotate(-4deg); }
}

.hero-bio {
  color: var(--ink-soft);
  font-size: 1.05rem;
  max-width: 540px;
  margin-bottom: 30px;
}

/* ---------- Sections ---------- */
.section {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 80px 28px;
}

.section-alt {
  background: var(--paper-alt);
  max-width: 100%;
  border-radius: var(--radius-lg);
  margin: 0 auto 20px;
}
.section-alt > * {
  max-width: calc(var(--max-width) - 56px);
  margin-left: auto;
  margin-right: auto;
}

.section-title {
  font-size: 2rem;
  color: var(--ink);
  margin-bottom: 8px;
}

.section-subtitle {
  color: var(--ink-soft);
  font-size: 1rem;
  margin-bottom: 42px;
}

/* ---------- Timeline (Work Experience) ---------- */
.timeline {
  position: relative;
  padding-left: 30px;
  border-left: 2px solid var(--baby-blue);
  display: flex;
  flex-direction: column;
  gap: 36px;
}

.timeline-item {
  position: relative;
}

.timeline-dot {
  position: absolute;
  left: -38px;
  top: 6px;
  width: 14px;
  height: 14px;
  border-radius: 50%;
  background: var(--baby-blue-deep);
  border: 3px solid var(--paper);
  box-shadow: 0 0 0 2px var(--baby-blue);
}

.timeline-card {
  background: var(--paper);
  border-radius: var(--radius-md);
  padding: 22px 26px;
  box-shadow: var(--shadow-card);
}

.card-date {
  display: inline-block;
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--navy-accent);
  background: var(--baby-blue-soft);
  padding: 4px 12px;
  border-radius: 999px;
  margin-bottom: 10px;
}

.card-title {
  font-size: 1.2rem;
  margin-bottom: 4px;
}

.card-org {
  color: var(--ink-soft);
  font-size: 0.9rem;
  margin-bottom: 10px;
}

.card-desc {
  color: var(--ink-soft);
  font-size: 0.95rem;
}

/* ---------- Grids (Competitions) ---------- */
.grid {
  display: grid;
  gap: 26px;
}

.grid-competitions {
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
}

/* ---------- Carousel (Initiatives) ---------- */
.carousel {
  display: flex;
  align-items: center;
  gap: 14px;
}

.carousel-track {
  display: flex;
  gap: 26px;
  overflow-x: auto;
  scroll-snap-type: x mandatory;
  scroll-behavior: smooth;
  padding: 4px 4px 16px;
  scrollbar-width: none;
  -ms-overflow-style: none;
}

.carousel-track::-webkit-scrollbar {
  display: none;
}

.carousel-track .card {
  flex: 0 0 320px;
  height: auto;
  align-self: stretch;
  scroll-snap-align: start;
}

.carousel-arrow {
  flex-shrink: 0;
  width: 40px;
  height: 48px;
  border: none;
  background: none;
  cursor: pointer;
  color: var(--navy-accent);
  display: flex;
  align-items: center;
  justify-content: center;
  transition: transform 0.2s ease, opacity 0.2s ease;
}
.carousel-arrow:hover {
  transform: scale(1.12);
}
.carousel-arrow:disabled {
  opacity: 0.25;
  cursor: default;
  transform: none;
}
.carousel-arrow svg {
  width: 34px;
  height: 34px;
}

.card-title-row {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 4px;
}
.card-title-row .card-title {
  margin-bottom: 0;
}

.card-logo {
  flex-shrink: 0;
  width: 40px;
  height: 40px;
  border-radius: 50%;
  object-fit: cover;
  background: var(--paper);
  box-shadow: 0 0 0 2px var(--baby-blue-soft);
}

.card {
  background: var(--paper);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-card);
  transition: transform 0.25s ease, box-shadow 0.25s ease;
  display: flex;
  flex-direction: column;
  height: 100%;
}
.card:hover {
  transform: translateY(-6px);
  box-shadow: 0 16px 32px rgba(111, 184, 224, 0.28);
}

.card-thumb {
  min-height: 90px;
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: 16px 20px;
  background: linear-gradient(135deg, var(--baby-blue-soft), var(--baby-blue));
  color: var(--navy-accent);
  font-weight: 600;
  font-size: 0.85rem;
  line-height: 1.4;
  border-radius: var(--radius-md) var(--radius-md) 0 0;
}

.card-body {
  padding: 20px 22px 24px;
  display: flex;
  flex-direction: column;
  flex: 1;
}

.card-bullets {
  margin: 10px 0 0;
  padding-left: 18px;
  display: flex;
  flex-direction: column;
  gap: 6px;
  color: var(--ink-soft);
  font-size: 0.92rem;
  line-height: 1.5;
}

.card-bullets strong {
  color: var(--navy-accent);
  font-weight: 600;
}

/* Sub-sections inside a timeline card (e.g. research projects) */
.project-list {
  display: flex;
  flex-direction: column;
  gap: 20px;
  margin-top: 16px;
}

.project {
  border-left: 3px solid var(--baby-blue);
  padding-left: 14px;
}

.project-title {
  font-size: 0.98rem;
  font-weight: 600;
  line-height: 1.35;
  color: var(--navy-accent);
}

.project-num {
  display: block;
  margin-bottom: 2px;
  font-size: 0.7rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--ink-soft);
}

.project .card-bullets {
  margin-top: 8px;
}

/* Collapsible "Read details" toggle */
.project-details summary {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  margin-top: 6px;
  padding: 4px 0;
  list-style: none;
  cursor: pointer;
  font-size: 0.88rem;
  font-weight: 400;
  color: var(--navy-accent);
}

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

.project-details summary:focus-visible {
  outline: 2px solid var(--navy-accent);
  outline-offset: 3px;
  border-radius: 4px;
}

.project-details .label-open,
.project-details[open] .label-closed {
  display: none;
}

.project-details[open] .label-open {
  display: inline;
}

.details-arrow {
  display: inline-block;
  transition: transform 0.25s ease;
}

.project-details summary:hover .details-arrow {
  transform: translateX(4px);
}

.project-details[open] .details-arrow,
.project-details[open] summary:hover .details-arrow {
  transform: rotate(90deg);
}

.card-links {
  display: flex;
  flex-wrap: wrap;
  gap: 6px 16px;
  margin-top: auto;
  padding-top: 14px;
}
.card-links .card-link {
  margin-top: 0;
  padding-top: 0;
}

.card-link {
  display: inline-block;
  margin-top: auto;
  padding-top: 14px;
  font-size: 0.88rem;
  font-weight: 600;
  color: var(--navy-accent);
}

/* ---------- View More Projects ---------- */
.view-more-toggle {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  margin: 30px auto 0;
  padding: 10px 4px;
  background: none;
  border: none;
  cursor: pointer;
  font-family: 'Poppins', sans-serif;
  font-size: 0.95rem;
  font-weight: 600;
  color: var(--navy-accent);
}
.view-more-arrow {
  transition: transform 0.25s ease;
}
.view-more-toggle[aria-expanded="true"] .view-more-arrow {
  transform: rotate(90deg);
}
.view-more-toggle:hover .view-more-arrow {
  transform: translateX(4px);
}
.view-more-toggle[aria-expanded="true"]:hover .view-more-arrow {
  transform: rotate(90deg) translateX(4px);
}

.more-projects {
  max-width: calc(var(--max-width) - 56px);
  margin: 0 auto;
  overflow: hidden;
  max-height: 0;
  opacity: 0;
  transition: max-height 0.4s ease, opacity 0.4s ease, margin-top 0.4s ease;
}
.more-projects.open {
  max-height: 1200px;
  opacity: 1;
  margin-top: 28px;
}

.mini-project-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 22px;
}

.mini-card {
  background: var(--paper);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-card);
  padding: 22px;
  display: flex;
  flex-direction: column;
}

.mini-card-title {
  font-size: 1.05rem;
  margin: 6px 0 8px;
}

.mini-card-desc {
  color: var(--ink-soft);
  font-size: 0.9rem;
  line-height: 1.5;
  margin-bottom: 4px;
}

.small-card {
  padding: 24px;
}

.badge {
  display: inline-block;
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--navy-accent);
  margin-bottom: 12px;
}

/* ---------- Press ---------- */
.press-list {
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.press-item {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 14px;
  padding: 18px 22px;
  border-radius: var(--radius-md);
  transition: background 0.25s ease;
}
.press-item:hover {
  background: var(--paper-alt);
}

.press-outlet {
  font-weight: 700;
  color: var(--navy-accent);
  min-width: 160px;
  font-size: 0.9rem;
}

.press-headline {
  flex: 1;
  color: var(--ink);
  font-style: italic;
  min-width: 200px;
}

.press-date {
  color: var(--ink-soft);
  font-size: 0.85rem;
}

/* ---------- Gallery ---------- */
.gallery-grid {
  columns: 3 220px;
  column-gap: 18px;
}

.gallery-item {
  break-inside: avoid;
  margin-bottom: 18px;
  border-radius: var(--radius-md);
  overflow: hidden;
  box-shadow: var(--shadow-card);
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: 16px;
  color: var(--navy-accent);
  font-weight: 500;
  font-size: 0.85rem;
  line-height: 1.4;
  background: linear-gradient(160deg, var(--baby-blue-soft), var(--baby-blue));
  transition: transform 0.3s ease;
}
.gallery-item:hover {
  transform: scale(1.03);
}

.gallery-item:has(img) {
  padding: 0;
}

.gallery-item img {
  width: 100%;
  display: block;
}

.gallery-item.ph-1 { height: 220px; }
.gallery-item.ph-2 { height: 300px; background: linear-gradient(160deg, var(--baby-blue), var(--baby-blue-soft)); }
.gallery-item.ph-3 { height: 200px; background: linear-gradient(160deg, var(--baby-blue-deep), var(--baby-blue-soft)); color: var(--paper); }
.gallery-item.ph-4 { height: 260px; }
.gallery-item.ph-5 { height: 210px; background: linear-gradient(160deg, var(--navy-accent), var(--baby-blue)); color: var(--paper); }

/* ---------- Social icons (hero) ---------- */
.social-icons {
  display: flex;
  justify-content: center;
  gap: 22px;
  margin-top: 8px;
}

.social-icon {
  width: 52px;
  height: 52px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
  background: var(--paper);
  color: var(--navy-accent);
  box-shadow: var(--shadow-card);
  transition: transform 0.25s ease, background 0.25s ease, color 0.25s ease;
}

.social-icon svg {
  width: 24px;
  height: 24px;
}

.social-icon:hover {
  background: var(--navy-accent);
  color: #fff;
  transform: translateY(-4px);
}

.site-footer {
  text-align: center;
  padding: 32px 24px;
}

.footer-note {
  color: var(--ink-soft);
  font-size: 0.85rem;
}

/* ---------- Scroll fade-in ---------- */
.fade-init {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 0.7s ease, transform 0.7s ease;
}
.fade-init.in-view {
  opacity: 1;
  transform: translateY(0);
}

/* ---------- Responsive ---------- */
@media (max-width: 720px) {
  .nav-toggle {
    display: flex;
  }

  .nav-links {
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background: var(--paper);
    flex-direction: column;
    align-items: center;
    gap: 0;
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.3s ease;
    box-shadow: var(--shadow-card);
  }

  .nav-links.open {
    max-height: 400px;
  }

  .nav-links li {
    width: 100%;
    text-align: center;
  }

  .nav-links a {
    display: block;
    padding: 16px;
  }

  .hero-name {
    font-size: 2.1rem;
  }

  .gallery-grid {
    columns: 2 160px;
  }

  .carousel-track .card {
    flex-basis: 100%;
  }

  .carousel {
    gap: 4px;
  }

  .section {
    padding: 80px 16px;
  }
}

@media (max-width: 420px) {
  .gallery-grid {
    columns: 1;
  }
}