* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

:root {
  --black: #000000;
  --white: #ffffff;
  --gray: #888888;
  --gray-dark: #1a1a1a;
  --gray-light: #cccccc;
  --accent: #5E6AD2;
  --accent-glow: rgba(94, 106, 210, 0.22);
  --bg-deep: #000000;
  --content-width: 1100px;
}

html {
  scroll-behavior: smooth;
}

body {
  font-family: 'Space Grotesk', sans-serif;
  background: var(--bg-deep);
  color: var(--white);
  overflow-x: hidden;
}

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

/* Hide the native cursor ONLY when the JS custom cursor is actually running
   (main.js adds .custom-cursor on non-touch devices). On touch / touchscreen
   machines, or if the script fails to load, the normal cursor stays visible. */
html.custom-cursor,
html.custom-cursor a,
html.custom-cursor button,
html.custom-cursor .lightbox-close { cursor: none; }

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

/* Custom Cursor */
.cursor {
  width: 8px;
  height: 8px;
  background: var(--white);
  border-radius: 50%;
  position: fixed;
  pointer-events: none;
  z-index: 9999;
  transform: translate(-50%, -50%);
  transition: transform 0.1s ease, width 0.2s ease, height 0.2s ease, background 0.2s ease;
}

.cursor-follower {
  width: 40px;
  height: 40px;
  border: 1px solid rgba(255, 255, 255, 0.3);
  border-radius: 50%;
  position: fixed;
  pointer-events: none;
  z-index: 9998;
  transform: translate(-50%, -50%);
  transition: transform 0.15s ease-out, width 0.3s ease, height 0.3s ease, border-color 0.2s ease;
}

.cursor.hover {
  width: 16px;
  height: 16px;
  background: transparent;
  border: 2px solid var(--white);
}

.cursor-follower.hover {
  width: 60px;
  height: 60px;
  border-color: var(--white);
}

/* Navigation */
.nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 1.25rem 3rem;
  z-index: 100;
  /* Solid translucent — no backdrop-filter blur (it repaints every scroll frame). */
  background: rgba(0, 0, 0, 0.88);
  border-bottom: 1px solid rgba(255, 255, 255, 0.06);
}

#about, #research, #journey, #publications, #outreach { scroll-margin-top: 80px; }

.nav-logo {
  font-size: 1.2rem;
  font-weight: 700;
  letter-spacing: 0.18em;
}

.nav-links {
  position: absolute;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.nav-link {
  font-size: 0.8rem;
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--white);
  transition: opacity 0.2s ease;
}

.nav-link:hover {
  opacity: 0.5;
}

.nav-link-sep {
  color: var(--gray);
}

.nav-right {
  display: flex;
  align-items: center;
  gap: 1.5rem;
}

.nav-menu-btn {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 0;
}

.nav-menu-btn span {
  display: block;
  width: 22px;
  height: 2px;
  background: var(--white);
  transition: transform 0.3s ease, opacity 0.3s ease;
}

.nav-menu-btn.active span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.nav-menu-btn.active span:nth-child(2) { opacity: 0; }
.nav-menu-btn.active span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* Mobile menu */
.mobile-menu {
  display: none;
  position: fixed;
  inset: 0;
  background: var(--black);
  z-index: 99;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  gap: 2.5rem;
}

.mobile-menu.open { display: flex; }

.mobile-menu-link {
  font-size: clamp(1.8rem, 8vw, 3rem);
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--white);
  transition: opacity 0.2s ease;
}

.mobile-menu-link:hover { opacity: 0.5; }

/* Hero — distinct editorial layout (eyebrow + name + lead + meta + framed portrait) */
.hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  position: relative;
  overflow: hidden;
  padding: 7rem 3rem 6rem;
}

.hero-fx {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  z-index: 0;
  pointer-events: none;
}

.hero-inner {
  position: relative;
  z-index: 1;
  width: 100%;
  max-width: var(--content-width);
  margin: 0 auto;
  display: grid;
  grid-template-columns: 1.25fr 0.75fr;
  gap: clamp(2.5rem, 5vw, 5rem);
  align-items: center;
}

.hero-eyebrow {
  display: inline-block;
  font-size: 0.78rem;
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 0.22em;
  color: var(--accent);
  margin-bottom: 1.6rem;
}

.hero-name {
  font-size: clamp(3rem, 7vw, 6.2rem);
  font-weight: 600;
  line-height: 0.96;
  letter-spacing: -0.025em;
  color: var(--white);
  margin-bottom: 1.8rem;
}

.hero-lead {
  font-size: clamp(1.05rem, 1.5vw, 1.3rem);
  line-height: 1.6;
  color: var(--gray-light);
  max-width: 32em;
  margin-bottom: 2rem;
}

.hero-lead em {
  font-style: normal;
  color: var(--white);
  box-shadow: inset 0 -1px 0 var(--accent);
}

.hero-meta {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 0.9rem;
  font-family: ui-monospace, 'SF Mono', SFMono-Regular, Menlo, Consolas, monospace;
  font-size: 0.78rem;
  letter-spacing: 0.04em;
  color: var(--gray);
}

.hero-meta .dot {
  width: 4px;
  height: 4px;
  border-radius: 50%;
  background: var(--accent);
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.8rem;
  margin-top: 1.7rem;
}

.hero-cv {
  display: inline-flex;
  align-items: center;
  gap: 0.55em;
  padding: 0.72em 1.25em;
  border: 1px solid var(--accent);
  border-radius: 999px;
  font-family: ui-monospace, 'SF Mono', SFMono-Regular, Menlo, Consolas, monospace;
  font-size: 0.76rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--white);
  background: var(--accent);
  transition: background 0.25s ease, color 0.25s ease, opacity 0.25s ease;
}

.hero-cv svg { width: 0.95em; height: 0.95em; fill: currentColor; }

.hero-cv:hover { opacity: 0.85; }

.hero-cv.ghost {
  background: transparent;
  color: var(--gray-light);
  border-color: var(--gray-dark);
}

.hero-cv.ghost:hover {
  color: var(--white);
  border-color: var(--accent);
  opacity: 1;
}

.hero-portrait { position: relative; margin: 0; }

.hero-portrait img {
  width: 100%;
  height: auto;
  border-radius: 6px;
  border: 1px solid var(--gray-dark);
  filter: grayscale(32%) contrast(1.03);
}

.hero-portrait figcaption {
  margin-top: 0.8rem;
  font-family: ui-monospace, 'SF Mono', SFMono-Regular, Menlo, Consolas, monospace;
  font-size: 0.72rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--gray);
}

[data-hero] { opacity: 1; }

.hero-scroll {
  position: absolute;
  bottom: 2.5rem;
  left: 50%;
  transform: translateX(-50%);
  z-index: 2;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.7rem;
}

.hero-scroll span {
  font-size: 0.7rem;
  text-transform: uppercase;
  letter-spacing: 0.2em;
  color: var(--gray);
}

.scroll-line {
  width: 1px;
  height: 54px;
  background: linear-gradient(to bottom, var(--white), transparent);
  animation: scrollPulse 2s ease-in-out infinite;
}

/* Shared section label */
.section-kicker,
.about-heading,
.research-title,
.roadmap-title {
  font-size: 1rem;
  text-transform: uppercase;
  letter-spacing: 0.15em;
  color: var(--accent);
  opacity: 0;
  transform: translateY(20px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}

.section-kicker.visible,
.about-heading.visible,
.research-title.visible,
.roadmap-title.visible {
  opacity: 1;
  transform: translateY(0);
}

/* About */
.about {
  padding: 8rem 3rem;
  border-bottom: 1px solid var(--gray-dark);
}

.about-container { max-width: var(--content-width); margin: 0 auto; }

.about-intro {
  margin-bottom: 4rem;
  opacity: 0;
  transform: translateY(40px);
  transition: opacity 0.8s ease, transform 0.8s ease;
}

.about-intro.visible { opacity: 1; transform: translateY(0); }

.about-heading { margin-bottom: 2rem; }

.about-lead {
  font-size: clamp(1.05rem, 1.4vw, 1.35rem);
  font-weight: 400;
  line-height: 1.6;
  color: var(--gray-light);
}

.about-content { display: grid; gap: 3rem; }

.about-block {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}

.about-block.visible { opacity: 1; transform: translateY(0); }

.about-block-title {
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.15em;
  color: var(--gray);
  margin-bottom: 1.5rem;
  padding-bottom: 0.5rem;
  border-bottom: 1px solid var(--gray-dark);
}

.about-link {
  color: var(--white);
  text-decoration: underline;
  text-underline-offset: 3px;
  transition: color 0.2s ease;
}

.about-link:hover { color: var(--gray-light); }

.about-skills {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 2rem;
}

.about-skill { display: flex; gap: 1rem; align-items: flex-start; }

.about-skill strong {
  display: block;
  color: var(--white);
  font-size: 1rem;
  margin-bottom: 0.3rem;
}

.about-skill p {
  font-size: 0.9rem;
  color: var(--gray);
  line-height: 1.5;
  margin: 0;
}

.about-location { padding-top: 1rem; opacity: 0; transform: translateY(20px); transition: opacity 0.6s ease, transform 0.6s ease; }
.about-location.visible { opacity: 1; transform: translateY(0); }
.about-location span { font-size: 0.9rem; color: var(--gray); }

/* Research */
.research {
  padding: 8rem 3rem;
  border-bottom: 1px solid var(--gray-dark);
}

.research-container { max-width: var(--content-width); margin: 0 auto; }

.research-title { margin-bottom: 1.5rem; }

.research-lead {
  font-size: clamp(1.05rem, 1.4vw, 1.35rem);
  line-height: 1.6;
  color: var(--gray-light);
  max-width: 760px;
  margin-bottom: 3.5rem;
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.8s ease, transform 0.8s ease;
}
.research-lead.visible { opacity: 1; transform: translateY(0); }

.research-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.5rem;
  perspective: 1200px;
}

.research-card {
  border: 1px solid var(--gray-dark);
  border-radius: 8px;
  padding: 2rem 1.75rem;
  background: rgba(255, 255, 255, 0.012);
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.6s ease, transform 0.6s ease, border-color 0.3s ease, background 0.3s ease;
  transform-style: preserve-3d;
  will-change: transform;
}

.research-card.visible { opacity: 1; transform: translateY(0); }

.research-card:hover {
  border-color: var(--gray);
  background: rgba(94, 106, 210, 0.04);
}

.research-card-num {
  display: block;
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.15em;
  color: var(--accent);
  margin-bottom: 1.25rem;
}

.research-card-title {
  font-size: 1.2rem;
  font-weight: 600;
  letter-spacing: -0.01em;
  margin-bottom: 0.85rem;
}

.research-card-desc {
  font-size: 0.92rem;
  line-height: 1.6;
  color: var(--gray);
}

/* Roadmap */
.roadmap {
  padding: 8rem 3rem;
  max-width: var(--content-width);
  margin: 0 auto;
}

.roadmap-title { margin-bottom: 4rem; }

.roadmap-timeline { position: relative; padding-left: 3rem; }

.roadmap-timeline::before {
  content: '';
  position: absolute;
  left: 7px;
  top: 8px;
  bottom: 8px;
  width: 1px;
  background: linear-gradient(to bottom, var(--gray-dark), var(--gray), var(--gray-dark));
}

.roadmap-item {
  position: relative;
  padding-bottom: 3rem;
  opacity: 0;
  transform: translateX(-20px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}

.roadmap-item:last-child { padding-bottom: 0; }
.roadmap-item.visible { opacity: 1; transform: translateX(0); }

.roadmap-dot {
  position: absolute;
  left: -3rem;
  top: 6px;
  width: 15px;
  height: 15px;
  background: var(--black);
  border: 2px solid var(--gray);
  border-radius: 50%;
  transition: border-color 0.3s ease, background 0.3s ease, transform 0.3s ease, box-shadow 0.3s ease;
}

.roadmap-item:hover .roadmap-dot {
  border-color: var(--accent);
  background: var(--accent);
  transform: scale(1.2);
  box-shadow: 0 0 16px var(--accent-glow);
}

.roadmap-content { padding-left: 1rem; }

.roadmap-year {
  display: inline-block;
  font-size: 0.75rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--white);
  background: var(--gray-dark);
  padding: 0.3rem 0.8rem;
  border-radius: 2px;
  margin-bottom: 0.75rem;
}

.roadmap-text {
  font-size: clamp(1rem, 2vw, 1.2rem);
  color: var(--gray-light);
  line-height: 1.5;
}

.roadmap-text em { color: var(--white); font-style: italic; }

.roadmap-link {
  color: var(--white);
  text-decoration: underline;
  text-underline-offset: 3px;
  transition: color 0.2s ease;
}

.roadmap-link:hover { color: var(--accent); }

/* Publications (project list) */
.project {
  padding: 7rem 3rem;
  max-width: var(--content-width);
  margin: 0 auto;
}

.project .section-kicker { margin-bottom: 2.5rem; }

.project-card {
  display: flex;
  align-items: center;
  gap: 1.5rem;
  position: relative;
  padding: 1.6rem 0;
  border-bottom: 1px solid var(--gray-dark);
  transition: border-color 0.3s ease;
  opacity: 0;
  transform: translateY(20px);
}

.project-card:first-of-type { border-top: 1px solid var(--gray-dark); }

.project-content { flex: 1; min-width: 0; }

.project-card.visible {
  opacity: 1;
  transform: translateY(0);
  transition: opacity 0.6s ease, transform 0.6s ease, border-color 0.3s ease;
}

.project-card:hover { border-color: var(--gray); }

.project-label {
  display: block;
  font-size: 0.65rem;
  text-transform: uppercase;
  letter-spacing: 0.15em;
  color: var(--accent);
  margin-bottom: 0.4rem;
}

.project-title {
  font-size: 1.2rem;
  font-weight: 600;
  line-height: 1.25;
  letter-spacing: -0.01em;
  transition: color 0.3s ease;
}

.project-desc {
  font-size: 0.9rem;
  color: var(--gray);
  line-height: 1.55;
  margin-top: 0.4rem;
  max-width: 720px;
}

.project-arrow {
  flex: 0 0 auto;
  color: var(--gray);
  opacity: 0.5;
  transition: color 0.3s ease, opacity 0.3s ease, transform 0.3s ease;
}

.project-card:hover .project-title { color: var(--gray-light); }
.project-card:hover .project-arrow { color: var(--accent); opacity: 1; transform: translate(3px, -3px); }

.project-card-all .project-title { color: var(--gray-light); }

/* Publications list */
.pubs { padding: 7rem 3rem; max-width: var(--content-width); margin: 0 auto; }
.pubs .section-kicker { margin-bottom: 1.25rem; }
.pubs-intro {
  color: var(--gray-light);
  max-width: 62ch;
  font-size: 1rem;
  line-height: 1.6;
  opacity: 0;
  transform: translateY(20px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}
.pubs-intro.visible { opacity: 1; transform: none; }
.pubs-subhead {
  font-size: 0.82rem;
  text-transform: uppercase;
  letter-spacing: 0.15em;
  color: var(--accent);
  margin: 2.75rem 0 0.25rem;
  padding-bottom: 0.6rem;
  border-bottom: 1px solid var(--gray-dark);
  opacity: 0;
  transform: translateY(20px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}
.pubs-subhead.visible { opacity: 1; transform: none; }
.pub-list { list-style: none; }
.pub-row { border-bottom: 1px solid var(--gray-dark); }
.pub-link {
  display: grid;
  grid-template-columns: 3.4rem 1fr auto;
  gap: 1.25rem;
  align-items: baseline;
  padding: 1.05rem 0;
}
.pub-year {
  font-family: ui-monospace, 'SF Mono', SFMono-Regular, Menlo, Consolas, monospace;
  font-size: 0.78rem;
  color: var(--accent);
}
.pub-main { min-width: 0; }
.pub-title {
  display: block;
  font-size: 1.02rem;
  font-weight: 500;
  color: var(--white);
  line-height: 1.35;
  transition: color 0.2s ease;
}
.pub-meta {
  display: block;
  font-size: 0.8rem;
  color: var(--gray);
  margin-top: 0.3rem;
  line-height: 1.45;
}
.pub-pdf {
  font-family: ui-monospace, 'SF Mono', SFMono-Regular, Menlo, Consolas, monospace;
  font-size: 0.72rem;
  letter-spacing: 0.06em;
  color: var(--gray);
  white-space: nowrap;
  align-self: center;
  transition: color 0.2s ease;
}
.pub-link:hover .pub-title { color: var(--gray-light); }
.pub-link:hover .pub-pdf { color: var(--accent); }
.pubs-all {
  display: inline-block;
  margin-top: 2.5rem;
  font-family: ui-monospace, 'SF Mono', SFMono-Regular, Menlo, Consolas, monospace;
  font-size: 0.82rem;
  letter-spacing: 0.04em;
  color: var(--gray-light);
  border-bottom: 1px solid var(--gray-dark);
  padding-bottom: 2px;
  opacity: 0;
  transform: translateY(20px);
  transition: opacity 0.6s ease, transform 0.6s ease, border-color 0.2s ease;
}
.pubs-all.visible { opacity: 1; transform: none; }
.pubs-all:hover { color: var(--accent); border-color: var(--accent); }

@media (max-width: 768px) {
  .pubs { padding: 4rem 1.5rem; }
  .pub-link { grid-template-columns: 1fr; gap: 0.35rem; padding: 1rem 0; }
  .pub-pdf { display: none; }
  .pub-title { font-size: 0.98rem; }
}
@media (max-width: 480px) { .pubs { padding: 3rem 1rem; } }

/* Outreach */
.outreach { padding: 7rem 3rem; border-top: 1px solid var(--gray-dark); }
.outreach-container { max-width: var(--content-width); margin: 0 auto; }
.outreach .section-kicker { margin-bottom: 1.5rem; }

.outreach-lead {
  font-size: clamp(1.05rem, 1.4vw, 1.3rem);
  line-height: 1.65;
  color: var(--gray-light);
  max-width: 760px;
  margin-bottom: 3rem;
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.8s ease, transform 0.8s ease;
}
.outreach-lead.visible { opacity: 1; transform: translateY(0); }
.outreach-lead strong { color: var(--white); font-weight: 600; }

.video-frame {
  position: relative;
  width: 100%;
  aspect-ratio: 16 / 9;
  border-radius: 8px;
  overflow: hidden;
  border: 1px solid var(--gray-dark);
  background: #050506;
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.8s ease, transform 0.8s ease;
}
.video-frame.visible { opacity: 1; transform: translateY(0); }

/* Keep the YouTube iframe interactive even when Lenis smooth-scroll is active */
.video-frame iframe {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  border: 0;
  pointer-events: auto !important;
}

.outreach-figure {
  margin-top: 3rem;
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.8s ease, transform 0.8s ease;
}
.outreach-figure.visible { opacity: 1; transform: translateY(0); }

.outreach-figure img {
  width: 100%;
  border-radius: 8px;
  border: 1px solid var(--gray-dark);
  filter: grayscale(100%);
  transition: filter 0.5s ease;
}
.outreach-figure:hover img { filter: grayscale(0%); }

.outreach-figure figcaption {
  margin-top: 1rem;
  font-size: 0.82rem;
  color: var(--gray);
  line-height: 1.5;
}
.outreach-figure figcaption em { color: var(--gray-light); }

/* CTA */
.cta { padding: 10rem 3rem; display: flex; justify-content: center; }

.cta-link {
  position: relative;
  overflow: hidden;
  display: inline-flex;
  align-items: center;
  gap: 0.5em;
  padding: 0.2em 0.4em;
  font-family: ui-monospace, 'SF Mono', SFMono-Regular, Menlo, Consolas, 'Liberation Mono', monospace;
  opacity: 0;
  transform: translateY(40px);
  transition: opacity 0.8s ease, transform 0.8s ease;
}

.cta-link::after {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 45%;
  height: 100%;
  background: linear-gradient(100deg, transparent 0%, rgba(150, 160, 255, 0.28) 50%, transparent 100%);
  transform: translateX(-160%) skewX(-18deg);
  pointer-events: none;
}

.cta-link:hover::after { animation: cta-sweep 0.85s ease-out; }

@keyframes cta-sweep {
  0%   { transform: translateX(-160%) skewX(-18deg); }
  100% { transform: translateX(320%) skewX(-18deg); }
}

.cta-link.visible { opacity: 1; transform: translateY(0); }

.cta-prompt {
  font-size: clamp(1.4rem, 3.2vw, 2.5rem);
  font-weight: 700;
  color: var(--accent);
  transition: color 0.3s ease;
}

.cta-line { display: inline-flex; align-items: center; }

.cta-text {
  font-size: clamp(1.4rem, 3.2vw, 2.5rem);
  font-weight: 500;
  letter-spacing: -0.01em;
  white-space: pre-wrap;
  color: var(--white);
  transition: text-shadow 0.35s ease;
}

.cta-caret {
  display: inline-block;
  width: 0.5em;
  height: 1.05em;
  margin-left: 0.12em;
  background: var(--white);
  animation: cta-blink 1.05s steps(1) infinite;
}

@keyframes cta-blink {
  0%, 50% { opacity: 1; }
  50.01%, 100% { opacity: 0; }
}

.cta-link:hover .cta-prompt { color: var(--white); }
.cta-link:hover .cta-text { text-shadow: 0 0 16px rgba(94, 106, 210, 0.55); }

/* Footer */
.footer {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 2rem 3rem;
  border-top: 1px solid var(--gray-dark);
  font-size: 0.8rem;
  color: var(--gray);
}

.footer-links { display: flex; gap: 2rem; }
.footer-links a { transition: color 0.2s ease; }
.footer-links a:hover { color: var(--white); }

/* Lightbox */
.lightbox {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.95);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 3rem;
  z-index: 1000;
  opacity: 0;
  visibility: hidden;
  transition: opacity 0.4s ease, visibility 0.4s ease;
}

.lightbox.show { opacity: 1; visibility: visible; }
.lightbox img { max-width: 90%; max-height: 90vh; object-fit: contain; }

.lightbox-close {
  position: absolute;
  top: 2rem;
  right: 2rem;
  background: none;
  border: none;
  color: var(--white);
  font-size: 2.5rem;
  cursor: pointer;
  opacity: 0.7;
  transition: opacity 0.2s ease;
}
.lightbox-close:hover { opacity: 1; }

/* Animations */
@keyframes revealUp { to { opacity: 1; transform: translateY(0); } }
@keyframes fadeScale { to { opacity: 1; transform: scale(1); } }
@keyframes scrollPulse {
  0%, 100% { opacity: 0.3; transform: scaleY(1); }
  50% { opacity: 1; transform: scaleY(1.2); }
}

/* Responsive */
@media (max-width: 1024px) {
  .hero { padding: 8rem 2rem 5rem; }
  .hero-inner { grid-template-columns: 1fr; gap: 2.5rem; }
  .hero-portrait { order: -1; justify-self: center; max-width: 320px; }
  .about { padding: 6rem 2rem; }
  .research { padding: 6rem 2rem; }
  .research-grid { grid-template-columns: 1fr; }
  .roadmap { padding: 6rem 2rem; }
  .roadmap-item { padding-bottom: 2.5rem; }
  .outreach { padding: 5rem 2rem; }
}

@media (max-width: 768px) {
  .cursor, .cursor-follower { display: none; }
  html.custom-cursor,
  html.custom-cursor a,
  html.custom-cursor button,
  html.custom-cursor .lightbox-close,
  html, body, a { cursor: auto; }

  .nav { padding: 1rem 1.5rem; }
  .nav-links { display: none; }
  .nav-menu-btn { display: flex; }
  .nav-logo { font-size: 1rem; }

  .hero { padding: 6rem 1.5rem 3rem; min-height: auto; }
  .hero-scroll { display: none; }
  .hero-name { font-size: clamp(2.6rem, 13vw, 4rem); }
  .hero-portrait { max-width: 280px; }
  .hero-meta { font-size: 0.72rem; }

  .about { padding: 4rem 1.5rem; }
  .about-lead { font-size: 1.05rem; }
  .about-intro { margin-bottom: 2.5rem; }
  .about-content { gap: 2rem; }
  .about-skill { flex-direction: column; gap: 0.5rem; }

  .research { padding: 4rem 1.5rem; }
  .research-lead { font-size: 1.05rem; margin-bottom: 2.5rem; }
  .research-card { padding: 1.75rem 1.5rem; }

  .roadmap { padding: 4rem 1.5rem; }
  .roadmap-timeline { padding-left: 2rem; }
  .roadmap-dot { left: -2rem; width: 10px; height: 10px; }
  .roadmap-timeline::before { left: 4px; }
  .roadmap-text { font-size: 0.95rem; }
  .roadmap-item { padding-bottom: 2rem; }

  .project { padding: 4rem 1.5rem; }
  .project-card { gap: 1.25rem; padding: 1.35rem 0; }
  .project-title { font-size: 1.05rem; }

  .outreach { padding: 4rem 1.5rem; }
  .outreach-lead { font-size: 1rem; margin-bottom: 2rem; }

  .cta { padding: 5rem 1.5rem; }
  .cta-text, .cta-prompt { font-size: clamp(1.2rem, 6vw, 2rem); }

  .footer { flex-direction: column; gap: 1rem; text-align: center; padding: 2rem 1.5rem; }
  .footer-links { gap: 1.5rem; }
}

@media (max-width: 480px) {
  .nav { padding: 1rem; }
  .hero { padding: 5rem 1rem 3rem; }
  .hero-name { font-size: clamp(2.2rem, 14vw, 3.2rem); }
  .about, .research, .roadmap, .project, .outreach { padding: 3rem 1rem; }
  .roadmap-timeline { padding-left: 1.5rem; }
  .roadmap-dot { left: -1.5rem; width: 8px; height: 8px; }
  .roadmap-timeline::before { left: 3px; }
  .cta { padding: 4rem 1rem; }
  .footer { padding: 1.5rem 1rem; }
}

/* Reduced motion */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
  [data-hero],
  [data-scroll] {
    opacity: 1 !important;
    transform: none !important;
  }
}

/* ===== Motion (JS) integration ===== */
/* When Motion is active (html.motion-ready) it drives the hero entrance and the
   reveal-on-scroll. We turn off the equivalent CSS animations/transitions so they
   don't run twice. Without .motion-ready (reduced-motion or failure), CSS shows all. */
html.motion-ready [data-scroll] { transition: none; }
html.motion-ready [data-hero] { opacity: 0; transform: translateY(22px); }

/* Scroll progress bar (filled by Motion / Lenis) */
.scroll-progress {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  height: 2px;
  background: linear-gradient(90deg, var(--white), var(--accent));
  transform: scaleX(0);
  transform-origin: 0 50%;
  z-index: 200;
  pointer-events: none;
}

/* ===== Cinematic atmosphere ===== */
.bg-atmosphere {
  position: fixed;
  inset: 0;
  z-index: -1;
  pointer-events: none;
  /* Static gradient for depth — no animated blur layers (kept cheap for 60fps). */
  background:
    radial-gradient(1100px 720px at 80% -10%, rgba(94, 106, 210, 0.06), transparent 60%),
    #000000;
}
/* Animated blurred blobs removed — blur(90px) on huge layers tanks scroll FPS. */
.blob { display: none; }
.blob-1 {
  width: 46vw; height: 46vw; left: -8vw; top: -6vw;
  background: radial-gradient(circle, rgba(94, 106, 210, 0.10), transparent 70%);
  animation: blobFloat1 26s ease-in-out infinite;
}
.blob-2 {
  width: 38vw; height: 38vw; right: -6vw; top: 30%;
  background: radial-gradient(circle, rgba(94, 106, 210, 0.07), transparent 70%);
  animation: blobFloat2 34s ease-in-out infinite;
}
.blob-3 {
  width: 30vw; height: 30vw; left: 22%; bottom: -10vw;
  background: radial-gradient(circle, rgba(255, 255, 255, 0.022), transparent 70%);
  animation: blobFloat1 40s ease-in-out infinite reverse;
}
@keyframes blobFloat1 {
  0%, 100% { transform: translate(0, 0) scale(1); }
  50% { transform: translate(6vw, 4vw) scale(1.12); }
}
@keyframes blobFloat2 {
  0%, 100% { transform: translate(0, 0) scale(1); }
  50% { transform: translate(-5vw, -3vw) scale(1.08); }
}

/* Smooth scroll (Lenis) */
html.lenis, html.lenis body { height: auto; }
.lenis.lenis-smooth { scroll-behavior: auto !important; }
.lenis.lenis-smooth [data-lenis-prevent] { overscroll-behavior: contain; }
.lenis.lenis-stopped { overflow: hidden; }

/* Cinematic film grain — STATIC (no per-frame animation, so it never repaints). */
body::after {
  content: '';
  position: fixed;
  inset: 0;
  z-index: 90;
  pointer-events: none;
  opacity: 0.035;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='120' height='120'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='2' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='120' height='120' filter='url(%23n)'/%3E%3C/svg%3E");
}

/* ===================== Talks & Seminars ===================== */
.talks { padding: 7rem 3rem; max-width: var(--content-width); margin: 0 auto; border-top: 1px solid var(--gray-dark); }
.talks .section-kicker { margin-bottom: 1.25rem; }
.talks-intro {
  color: var(--gray-light); max-width: 64ch; font-size: 1rem; line-height: 1.6; margin-bottom: 2.5rem;
  opacity: 0; transform: translateY(20px); transition: opacity 0.6s ease, transform 0.6s ease;
}
.talks-intro.visible { opacity: 1; transform: none; }
.talks-intro strong { color: var(--white); font-weight: 600; }
.talks-list { list-style: none; }
.talk-row {
  display: grid; grid-template-columns: 5rem 1fr; gap: 1.5rem; align-items: baseline;
  padding: 1.05rem 0; border-bottom: 1px solid var(--gray-dark);
}
.talk-year {
  font-family: ui-monospace, 'SF Mono', SFMono-Regular, Menlo, Consolas, monospace;
  font-size: 0.8rem; color: var(--accent); letter-spacing: 0.02em;
}
.talk-items { color: var(--gray); font-size: 0.92rem; line-height: 1.55; }
.talk-items strong { color: var(--gray-light); font-weight: 600; }
.talks .pubs-all { margin-top: 2.5rem; }

/* ===================== Mentorship & Teaching ===================== */
.mentoring { padding: 7rem 3rem; max-width: var(--content-width); margin: 0 auto; border-top: 1px solid var(--gray-dark); }
.mentoring .section-kicker { margin-bottom: 2.5rem; }
.mentoring-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 3.5rem; }
.mentoring-col { opacity: 0; transform: translateY(24px); transition: opacity 0.7s ease, transform 0.7s ease; }
.mentoring-col.visible { opacity: 1; transform: none; }
.mentoring-subhead {
  font-size: 0.7rem; text-transform: uppercase; letter-spacing: 0.15em; color: var(--gray);
  margin: 0 0 1.1rem; padding-bottom: 0.6rem; border-bottom: 1px solid var(--gray-dark);
}
.mentoring-list + .mentoring-subhead { margin-top: 2.2rem; }
.mentoring-list { list-style: none; }
.mentoring-list li { margin-bottom: 1.25rem; }
.mentoring-list strong { display: block; color: var(--white); font-weight: 600; font-size: 1rem; }
.mentoring-list .m-role { display: block; color: var(--gray-light); font-size: 0.85rem; margin-top: 0.15rem; }
.mentoring-list .m-focus { display: block; color: var(--gray); font-size: 0.82rem; margin-top: 0.2rem; line-height: 1.45; }
.m-also { color: var(--gray); font-size: 0.88rem; line-height: 1.6; }
.m-also em { color: var(--gray-light); font-style: italic; }

/* ===================== Contact ===================== */
.contact { padding: 7rem 3rem 8rem; border-top: 1px solid var(--gray-dark); text-align: center; }
.contact-inner { max-width: 640px; margin: 0 auto; }
.contact .section-kicker { margin-bottom: 1.5rem; }
.contact-lead {
  color: var(--gray-light); font-size: clamp(1.05rem, 1.4vw, 1.25rem); line-height: 1.6; margin-bottom: 2rem;
  opacity: 0; transform: translateY(20px); transition: opacity 0.6s ease, transform 0.6s ease;
}
.contact-lead.visible { opacity: 1; transform: none; }
.contact-email {
  display: inline-block; font-size: clamp(1.4rem, 3.5vw, 2.2rem); font-weight: 600; color: var(--white);
  letter-spacing: -0.01em; border-bottom: 1px solid var(--gray-dark); padding-bottom: 4px;
  opacity: 0; transform: translateY(20px);
  transition: opacity 0.6s ease, transform 0.6s ease, color 0.25s ease, border-color 0.25s ease;
}
.contact-email.visible { opacity: 1; transform: none; }
.contact-email:hover { color: var(--accent); border-color: var(--accent); }
.contact-links {
  display: flex; flex-wrap: wrap; justify-content: center; gap: 1.5rem; margin-top: 2.2rem;
  opacity: 0; transform: translateY(20px); transition: opacity 0.6s ease 0.1s, transform 0.6s ease 0.1s;
}
.contact-links.visible { opacity: 1; transform: none; }
.contact-links a {
  font-family: ui-monospace, 'SF Mono', SFMono-Regular, Menlo, Consolas, monospace;
  font-size: 0.8rem; letter-spacing: 0.05em; text-transform: uppercase; color: var(--gray);
  transition: color 0.2s ease;
}
.contact-links a:hover { color: var(--accent); }
.contact-loc {
  margin-top: 2.5rem;
  font-family: ui-monospace, 'SF Mono', SFMono-Regular, Menlo, Consolas, monospace;
  font-size: 0.76rem; letter-spacing: 0.04em; color: var(--gray);
  opacity: 0; transition: opacity 0.6s ease 0.2s;
}
.contact-loc.visible { opacity: 1; }

/* nav collapses to the hamburger sooner now that there are more links */
@media (max-width: 900px) {
  .nav-links { display: none; }
  .nav-menu-btn { display: flex; }
}
@media (max-width: 768px) {
  .talks { padding: 4rem 1.5rem; }
  .talk-row { grid-template-columns: 1fr; gap: 0.35rem; padding: 1rem 0; }
  .mentoring { padding: 4rem 1.5rem; }
  .mentoring-grid { grid-template-columns: 1fr; gap: 2.5rem; }
  .contact { padding: 4rem 1.5rem 5rem; }
  .contact-links { gap: 1rem 1.25rem; }
}
@media (max-width: 480px) {
  .talks, .mentoring { padding: 3rem 1rem; }
  .contact { padding: 3rem 1rem 4rem; }
}