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

:root {
  --bg: #F6F4EF;
  --bg-overlay: #FAFAF7;
  --text: #1A1918;
  --text-muted: #8E4585;
  --border: #D8D4CB;
  --accent: #C2A882;
  --font-display: 'Roboto Mono', 'Courier New', monospace;
  --font-mono: 'Roboto Condensed', sans-serif;
  --font-body: 'Roboto', system-ui, sans-serif;
  --nav-h: 60px;
  --ease: cubic-bezier(0.4, 0, 0.2, 1);
}

html { scroll-behavior: smooth; }
body { background: var(--bg); color: var(--text); font-family: var(--font-body); font-weight: 300; overflow-x: hidden; }

/* ─── LOADER ───────────────────────────────────────── */
.loader {
  position: fixed;
  inset: 0;
  z-index: 999;
  background: var(--bg);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 36px;
  transition: opacity 0.7s var(--ease);
}
.loader.out {
  opacity: 0;
  pointer-events: none;
}
.loader-logo {
  font-family: 'Roboto Mono', monospace;
  font-size: 15svh;
  font-weight: 500;
  letter-spacing: -0.03em;
  line-height: 1;
  user-select: none;
}
.loader-prenom { color: #8E4585; }
.loader-nom { color: #8E4585; }
.loader-tickets {
  width: 50%;
  overflow: hidden;
  height: 5svh;
}
.tickets-track {
  display: flex;
  gap: 16px;
  align-items: center;
  height: 100%;
  animation: ticketsScroll 18s linear infinite;
  width: max-content;
}
.tickets-track img {
  height: 10svh;
  width: auto;
  display: block;
  object-fit: contain;
  flex-shrink: 0;
}
@keyframes ticketsScroll {
  0% { transform: translateX(0); }
  100% { transform: translateX(-50%); }
}
.loader-tagline {
  font-family: var(--font-mono);
  font-size: clamp(0.7rem, 1.5vw, 0.9rem);
  letter-spacing: 0.4em;
  text-transform: uppercase;
  color: var(--text-muted);
}

/* ─── HERO ─────────────────────────────────────────── */
.hero {
  height: 100svh;
  min-height: 600px;
  display: grid;
  grid-template-columns: 1fr 1fr;
  position: relative;
  overflow: hidden;
}
.hero-left {
  position: relative;
  overflow: hidden;
  background: var(--bg);
  padding: 0 36px;
  order: 2;
}
.hero-carousel {
  position: relative;
  width: 100%;
  height: 100%;
}
.hero-slide {
  position: absolute;
  inset: 0;
  opacity: 0;
  transition: opacity 0.7s var(--ease);
  cursor: pointer;
  overflow: hidden;
  pointer-events: none;
}
.hero-slide.active { opacity: 1; pointer-events: auto; }
.hero-slide-front {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: contain;
  transition: opacity 0.5s var(--ease);
}
.hero-slide-back {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: contain;
  opacity: 0;
  transition: opacity 0.5s var(--ease);
}
.hero-slide:hover .hero-slide-front { opacity: 0; }
.hero-slide:hover .hero-slide-back { opacity: 0.6; }
.slide-info {
  position: absolute;
  bottom: 0;
  left: 0;
  padding: clamp(16px, 2.5vw, 28px);
  color: var(--text);
  opacity: 0;
  transition: opacity 0.35s var(--ease);
  pointer-events: none;
}
.hero-slide:hover .slide-info { opacity: 1; }
.slide-info-title {
  font-family: 'Roboto Mono', monospace;
  font-size: clamp(0.85rem, 1.6vw, 1.1rem);
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin-bottom: 5px;
}
.slide-info-tags {
  font-family: 'Roboto Condensed', sans-serif;
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  opacity: 0.8;
}
.hero-dots {
  position: absolute;
  bottom: 20px;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  gap: 8px;
  z-index: 10;
}
.hero-dot {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: rgba(26,25,24,0.2);
  border: none;
  cursor: pointer;
  transition: background 0.2s;
  padding: 0;
}
.hero-dot.active { background: var(--text); }
.hero-arrow {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  background: none;
  border: none;
  cursor: pointer;
  color: var(--text);
  font-size: 1.4rem;
  z-index: 10;
  opacity: 0.28;
  transition: opacity 0.2s;
  padding: 8px 6px;
  line-height: 1;
}
.hero-arrow:hover { opacity: 0.8; }
.hero-arrow-prev { left: 10px; }
.hero-arrow-next { right: 10px; }
.hero-right {
  display: flex;
  flex-direction: column;
  justify-content: center;
  padding: clamp(40px, 6vw, 80px) clamp(32px, 5vw, 60px);
  position: relative;
  order: 1;
}
.hero-greeting {
  font-family: 'Roboto Condensed', sans-serif;
  font-size: clamp(2.5rem, 5vw, 5rem);
  font-weight: 300;
  color: var(--text);
  height: 1.2em;
  overflow: hidden;
  margin-bottom: 20px;
}
.hero-greeting span {
  display: block;
  transition: transform 0.6s var(--ease), opacity 0.6s var(--ease);
}
.hero-greeting span.out { transform: translateY(-100%); opacity: 0; }
.hero-greeting span.next { transform: translateY(100%); opacity: 0; }
.hero-tagline {
  font-family: 'Roboto Mono', monospace;
  font-size: clamp(1.3rem, 2.8vw, 2.6rem);
  font-weight: 400;
  line-height: 1.2;
  color: var(--text);
  margin-bottom: 24px;
}
.hero-sub {
  font-family: 'Roboto Condensed', sans-serif;
  font-size: clamp(0.85rem, 1.5vw, 1rem);
  font-weight: 300;
  color: var(--text-muted);
  line-height: 1.7;
}
.hero-scroll {
  position: absolute;
  bottom: 28px;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
  font-family: 'Roboto Condensed', sans-serif;
  font-size: 0.7rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--text-muted);
  cursor: pointer;
  z-index: 5;
}
.hero-scroll::after {
  content: '';
  width: 1px;
  height: 40px;
  background: var(--border);
  display: block;
  animation: scrollLine 1.8s ease-in-out infinite;
}
@keyframes scrollLine {
  0%, 100% { opacity: 0.3; transform: scaleY(1); }
  50% { opacity: 1; transform: scaleY(1.3); }
}

/* ─── NAV ───────────────────────────────────────────── */
nav {
  position: sticky;
  top: 0;
  z-index: 100;
  height: var(--nav-h);
  background: var(--bg);
  border-bottom: 1px solid var(--border);
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  align-items: center;
  padding: 0 clamp(24px, 4vw, 60px);
  transition: background 0.3s;
}
nav.scrolled { background: rgba(246,244,239,0.92); backdrop-filter: blur(12px); }

.nav-logo {
  font-family: 'Roboto Mono', monospace;
  font-size: 0.85rem;
  font-weight: 500;
  letter-spacing: -0.02em;
  text-decoration: none;
  color: var(--text);
  display: flex;
  align-items: center;
  gap: 8px;
}
.nav-logo-img {
  height: 22px;
  width: auto;
}

.nav-links {
  display: flex;
  gap: 32px;
}
.nav-links a {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  font-weight: 500;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  text-decoration: none;
  color: var(--text-muted);
  transition: color 0.2s;
}
.nav-links a:hover { color: var(--text); }

.lang-picker {
  display: flex;
  gap: 12px;
  justify-content: flex-end;
  align-items: center;
}
.lang-picker button {
  font-family: var(--font-mono);
  font-size: 0.65rem;
  letter-spacing: 0.15em;
  background: none;
  border: none;
  cursor: pointer;
  color: var(--text-muted);
  padding: 2px 0;
  transition: color 0.2s;
  text-transform: uppercase;
}
.lang-picker button:hover, .lang-picker button.active { color: var(--text); }
.lang-picker button.active { border-bottom: 1px solid var(--text); }

/* ─── SECTION LAYOUT ─────────────────────────────────── */
section { padding: clamp(60px, 8vw, 120px) clamp(24px, 4vw, 60px); }

.section-head {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  margin-bottom: clamp(32px, 4vw, 60px);
  flex-wrap: wrap;
  gap: 16px;
}
.section-title {
  font-family: 'Roboto Mono', monospace;
  font-size: clamp(1.6rem, 4.2vw, 2.8rem);
  font-weight: 400;
  text-transform: uppercase;
  letter-spacing: 0.02em;
}

/* ─── FILTERS ────────────────────────────────────────── */
.filters {
  display: flex;
  gap: 0;
  flex-wrap: wrap;
}
.filter-btn {
  font-family: var(--font-mono);
  font-size: 0.65rem;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  background: none;
  border: 1px solid var(--border);
  border-left: none;
  padding: 8px 16px;
  cursor: pointer;
  color: var(--text-muted);
  transition: all 0.2s;
}
.filter-btn:first-child { border-left: 1px solid var(--border); border-radius: 2px 0 0 2px; }
.filter-btn:last-child { border-radius: 0 2px 2px 0; }
.filter-btn:hover { color: var(--text); background: rgba(0,0,0,0.03); }
.filter-btn.active { color: var(--text); background: var(--text); color: var(--bg); border-color: var(--text); }

/* ─── PROJECTS GRID ──────────────────────────────────── */
.projects-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: clamp(12px, 2vw, 24px);
}

.project-card {
  cursor: pointer;
  position: relative;
  overflow: hidden;
  background: #fff;
  transition: opacity 0.3s, transform 0.4s var(--ease), box-shadow 0.4s var(--ease);
}
.project-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 20px 60px rgba(0,0,0,0.08);
}
.project-card img {
  width: 100%;
  height: auto;
  display: block;
  transition: transform 0.6s var(--ease);
}
.card-front {
  width: 100%;
  height: auto;
  display: block;
  transition: transform 0.6s var(--ease), opacity 0.5s var(--ease);
}
.card-back {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: 0;
  transition: opacity 0.5s var(--ease);
}
.project-card:hover .card-front { opacity: 0; }
.project-card:hover .card-back { opacity: 0.6; }

.card-hover {
  position: absolute;
  inset: 0;
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  padding: clamp(16px, 2vw, 28px);
  pointer-events: none;
  background: linear-gradient(to top, rgba(20,18,16,0.45) 0%, transparent 55%);
  opacity: 0;
  transition: opacity 0.35s var(--ease);
}
.project-card:hover .card-hover { opacity: 1; }

.card-info { transform: translateY(8px); transition: transform 0.35s var(--ease); }
.project-card:hover .card-info { transform: translateY(0); }

.card-title {
  font-family: 'Roboto Mono', monospace;
  font-size: clamp(0.9rem, 2vw, 1.3rem);
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  line-height: 1.1;
  margin-bottom: 8px;
  color: #fff;
}
.card-tags {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
}
.tag {
  font-family: var(--font-mono);
  font-size: 0.6rem;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: rgba(255,255,255,0.72);
}

.project-card.card-hidden {
  opacity: 0;
  pointer-events: none;
  transform: scale(0.95);
}

/* ─── PROJECT OVERLAY ────────────────────────────────── */
.overlay {
  position: fixed;
  inset: 0;
  z-index: 200;
  background: var(--bg-overlay);
  overflow-y: auto;
  transform: translateY(100%);
  transition: transform 0.6s var(--ease);
  will-change: transform;
}
.overlay.open { transform: translateY(0); }

.overlay-nav {
  position: sticky;
  top: 0;
  z-index: 10;
  background: rgba(250,250,247,0.9);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border);
  height: var(--nav-h);
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 clamp(24px, 4vw, 60px);
}
.back-btn {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  background: none;
  border: none;
  cursor: pointer;
  color: var(--text-muted);
  transition: color 0.2s;
  padding: 0;
}
.back-btn:hover { color: var(--text); }
.overlay-nav-title {
  font-family: var(--font-display);
  font-size: 1.35rem;
  font-weight: 500;
}

.project-inner { max-width: 1200px; margin: 0 auto; padding: clamp(40px, 6vw, 80px) clamp(24px, 4vw, 60px); }

/* Tickets superposés */
.ticket-stack {
  position: relative;
  max-width: 680px;
  margin: 0 auto clamp(40px, 6vw, 80px);
  padding-bottom: 13%;
}
.ticket-cover {
  width: 86%;
  height: auto;
  display: block;
  position: relative;
  z-index: 2;
  transform: rotate(-3deg);
  box-shadow: 0 16px 56px rgba(0,0,0,0.14), 0 4px 12px rgba(0,0,0,0.08);
  transition: transform 0.4s var(--ease);
}
.ticket-stack:hover .ticket-cover { transform: rotate(-3deg) translateY(-5px); }
.ticket-back {
  width: 86%;
  height: auto;
  display: block;
  position: absolute;
  bottom: 0;
  right: -13%;
  z-index: 1;
  transform: rotate(4.5deg);
  box-shadow: 0 8px 30px rgba(0,0,0,0.09);
  transition: transform 0.4s var(--ease);
}
.ticket-stack:hover .ticket-back { transform: rotate(4.5deg) translateY(4px); }

/* Project info strip */
.project-meta {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
  gap: 1px;
  background: var(--border);
  border: 1px solid var(--border);
  margin-bottom: clamp(40px, 5vw, 60px);
}
.meta-field {
  background: var(--bg-overlay);
  padding: 20px 24px;
}
.meta-label {
  font-family: var(--font-mono);
  font-size: 0.6rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--text-muted);
  display: block;
  margin-bottom: 6px;
}
.meta-value {
  font-family: var(--font-display);
  font-size: 1.35rem;
  font-weight: 500;
}

/* Project text */
.project-text {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: clamp(20px, 3vw, 48px);
  margin-bottom: clamp(40px, 6vw, 80px);
  padding-bottom: clamp(40px, 6vw, 80px);
  border-bottom: 1px solid var(--border);
}
.text-block-label {
  font-family: var(--font-mono);
  font-size: 0.62rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--text-muted);
  display: block;
  margin-bottom: 14px;
}
.text-block p {
  font-size: clamp(0.85rem, 1.2vw, 0.95rem);
  line-height: 1.75;
  font-weight: 300;
}

/* Gallery */
.gallery {
  display: flex;
  gap: clamp(10px, 1.5vw, 18px);
  margin-bottom: clamp(40px, 6vw, 80px);
}
.gallery-col {
  flex: 1;
  min-width: 0;
  display: flex;
  flex-direction: column;
  gap: clamp(10px, 1.5vw, 18px);
}
.gallery-item {
  overflow: hidden;
}
.gallery-item img,
.gallery-item video {
  width: 100%;
  height: auto;
  display: block;
  transition: transform 0.5s var(--ease);
}
.gallery-item:hover img,
.gallery-item:hover video { transform: scale(1.02); }

/* Project nav */
.project-nav {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding-top: clamp(24px, 4vw, 48px);
  border-top: 1px solid var(--border);
}
.proj-nav-btn {
  background: none;
  border: none;
  cursor: pointer;
  font-family: var(--font-display);
  font-size: clamp(1rem, 2vw, 1.4rem);
  font-weight: 300;
  color: var(--text-muted);
  transition: color 0.2s;
  display: flex;
  flex-direction: column;
  gap: 4px;
}
.proj-nav-btn:hover { color: var(--text); }
.proj-nav-label {
  font-family: var(--font-mono);
  font-size: 0.6rem;
  letter-spacing: 0.15em;
  text-transform: uppercase;
}
.proj-nav-inner {
  display: flex;
  align-items: center;
  gap: 12px;
}
.proj-nav-btn:not([style*="right"]) {
  align-items: flex-start;
}
.proj-nav-btn[style*="right"] .proj-nav-inner {
  flex-direction: row-reverse;
}
.proj-nav-preview {
  width: 56px;
  height: 40px;
  object-fit: cover;
  display: block;
  opacity: 0.7;
  transition: opacity 0.2s;
  border: 1px solid var(--border);
}
.proj-nav-btn:hover .proj-nav-preview { opacity: 1; }

/* ─── PDF VIEWER ─────────────────────────────────────── */
.pdf-viewer {
  margin-bottom: clamp(40px, 6vw, 80px);
  border: 1px solid var(--border);
  background: #fff;
}
.pdf-viewer canvas {
  display: block;
  width: 100%;
  height: auto;
}
.pdf-controls {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 24px;
  padding: 16px;
  border-top: 1px solid var(--border);
}
.pdf-btn {
  background: none;
  border: 1px solid var(--border);
  cursor: pointer;
  font-family: var(--font-mono);
  font-size: 1rem;
  color: var(--text-muted);
  width: 36px;
  height: 36px;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: color 0.2s, border-color 0.2s;
}
.pdf-btn:hover { color: var(--text); border-color: var(--text); }
.pdf-btn:disabled { opacity: 0.3; cursor: default; }
.pdf-page-info {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  letter-spacing: 0.15em;
  color: var(--text-muted);
}
.pdf-loading {
  padding: 40px;
  text-align: center;
  font-family: var(--font-mono);
  font-size: 0.7rem;
  letter-spacing: 0.15em;
  color: var(--text-muted);
}

/* ─── LAB ────────────────────────────────────────────── */
#lab { background: #EFEDE8; }
.lab-grid {
  columns: 6;
  column-gap: clamp(8px, 1.2vw, 14px);
}
.lab-item {
  break-inside: avoid;
  margin-bottom: clamp(8px, 1.2vw, 14px);
  overflow: hidden;
  cursor: pointer;
}
.lab-item img,
.lab-item video {
  width: 100%;
  height: auto;
  display: block;
  transition: transform 0.5s var(--ease), opacity 0.3s;
}
.lab-item:hover img { transform: scale(1.03); opacity: 0.9; }

/* ─── ABOUT ──────────────────────────────────────────── */
.about-inner {
  display: grid;
  grid-template-columns: 340px 1fr;
  gap: clamp(40px, 6vw, 80px);
  align-items: start;
  max-width: none;
}
.about-photo {
  position: sticky;
  top: calc(var(--nav-h) + 40px);
}
.about-photo img {
  width: 100%;
  height: auto;
  display: block;
}
.about-role {
  font-family: 'Roboto Condensed', sans-serif;
  font-size: clamp(0.9rem, 1.8vw, 1.1rem);
  font-weight: 300;
  color: var(--text-muted);
  display: block;
  margin-bottom: 16px;
}
.about-name-row {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  margin-bottom: 72px;
}
.about-prenom {
  font-family: 'Roboto Mono', monospace;
  font-size: clamp(4rem, 9vw, 9rem);
  font-weight: 500;
  letter-spacing: -0.03em;
  line-height: 0.88;
  display: block;
  color: var(--text);
}
.about-stamp {
  width: clamp(70px, 8vw, 120px);
  height: auto;
  opacity: 0.88;
}
.about-divider {
  border: none;
  border-top: 1px solid var(--border);
  margin: 0 0 64px;
}
.about-bio-cols {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: clamp(20px, 3vw, 40px);
  margin-bottom: 56px;
}
.about-bio-cols p {
  font-family: 'Roboto', system-ui, sans-serif;
  font-size: clamp(0.82rem, 1.2vw, 0.92rem);
  line-height: 1.85;
  font-weight: 300;
  color: var(--text);
}
.about-meta {
  display: grid;
  grid-template-columns: 1fr 1fr;
  border-top: 1px solid var(--border);
  padding-top: 36px;
  gap: 20px;
}
.about-meta-label {
  font-family: 'Roboto Mono', monospace;
  font-size: 0.68rem;
  font-weight: 500;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--text);
  display: block;
  margin-bottom: 8px;
}
.about-meta-value {
  font-family: 'Roboto', sans-serif;
  font-size: clamp(0.82rem, 1.2vw, 0.92rem);
  color: var(--text-muted);
  font-weight: 300;
}

/* ─── LAB SUB ────────────────────────────────────────── */
.lab-sub {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--text-muted);
  margin-top: 6px;
}

/* ─── FOOTER ─────────────────────────────────────────── */
footer {
  border-top: 1px solid var(--border);
  padding: 28px clamp(24px, 4vw, 60px);
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 12px;
}
footer p {
  font-family: var(--font-mono);
  font-size: 0.62rem;
  letter-spacing: 0.1em;
  color: var(--text-muted);
}

/* ─── SCROLL REVEAL ──────────────────────────────────── */
.reveal {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 0.7s var(--ease), transform 0.7s var(--ease);
}
.reveal.visible { opacity: 1; transform: translateY(0); }
.reveal-delay-1 { transition-delay: 0.1s; }
.reveal-delay-2 { transition-delay: 0.2s; }
.reveal-delay-3 { transition-delay: 0.3s; }

/* ─── LIGHTBOX ───────────────────────────────────────── */
.lightbox {
  position: fixed;
  inset: 0;
  z-index: 500;
  background: rgba(26,25,24,0.95);
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.3s;
}
.lightbox.open { opacity: 1; pointer-events: auto; }
.lightbox img, .lightbox video {
  max-width: 90vw;
  max-height: 90vh;
  object-fit: contain;
}
.lightbox-close {
  position: absolute;
  top: 24px;
  right: 24px;
  background: none;
  border: none;
  color: rgba(255,255,255,0.6);
  font-size: 1.5rem;
  cursor: pointer;
  transition: color 0.2s;
  line-height: 1;
}
.lightbox-close:hover { color: #fff; }

/* ─── RESPONSIVE ─────────────────────────────────────── */
@media (max-width: 900px) {
  .hero { grid-template-columns: 1fr; grid-template-rows: 55svh 1fr; height: 100svh; }
  .hero-left { order: 1; min-height: 0; padding: 0 12px; }
  .hero-right { order: 2; padding: 28px 24px 48px; justify-content: flex-start; }
  .hero-scroll { left: 50%; transform: translateX(-50%); bottom: 16px; }
  .about-inner { grid-template-columns: 1fr; }
  .about-photo { position: static; max-width: 320px; }
  .about-bio-cols { grid-template-columns: 1fr; }
  .projects-grid { grid-template-columns: 1fr; }
  .project-text { grid-template-columns: 1fr; }
  .lab-grid { columns: 2; }
  .nav-links { display: none; }
  .lang-picker { gap: 6px; flex-wrap: wrap; justify-content: flex-end; max-width: 200px; }
  .lang-picker button { font-size: 0.58rem; letter-spacing: 0.08em; }
  .ticket-stack { max-width: 100%; }
}
@media (max-width: 600px) {
  .lab-grid { columns: 2; }
  .filters { gap: 4px; }
  .filter-btn { padding: 6px 10px; font-size: 0.6rem; }
}
@media (max-width: 400px) {
  .lab-grid { columns: 1; }
}

/* Mobile nav menu */
.mobile-menu-btn {
  display: none;
  background: none;
  border: none;
  cursor: pointer;
  font-size: 1.2rem;
  color: var(--text-muted);
}
@media (max-width: 900px) {
  .mobile-menu-btn { display: flex; }
  nav { grid-template-columns: 1fr auto auto; gap: 16px; }
}