:root {
  --bg: #faf8f4;
  --surface: #ffffff;
  --ink: #1b1f24;
  --muted: #5b6470;
  --line: #e6e1d8;
  --accent: #1d3f72;
  --accent-soft: #e8eef7;
  --radius: 18px;
  --serif: "EB Garamond", Garamond, Georgia, serif;
  --sans: "Inter", system-ui, -apple-system, "Segoe UI", sans-serif;
  color-scheme: light;
}

* { box-sizing: border-box; }
html { scroll-padding-top: 80px; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font: 16px/1.6 var(--sans);
  -webkit-font-smoothing: antialiased;
}
img { max-width: 100%; display: block; }
a { color: var(--accent); }
.wrap { width: min(1160px, 100% - 32px); margin-inline: auto; }

/* ---------- floating nav ---------- */
.topbar {
  position: sticky; top: 0; z-index: 50;
  background: color-mix(in srgb, var(--bg) 82%, transparent);
  backdrop-filter: saturate(1.4) blur(14px);
  -webkit-backdrop-filter: saturate(1.4) blur(14px);
  border-bottom: 1px solid var(--line);
}
.nav {
  width: min(1160px, 100% - 32px); margin-inline: auto;
  display: flex; align-items: center; gap: 24px; height: 64px;
}
.brand {
  font: 600 1.35rem/1 var(--serif); color: var(--ink); text-decoration: none;
  white-space: nowrap; letter-spacing: .01em;
}
.nav-links {
  display: flex; gap: 4px; margin-left: auto; min-width: 0;
  overflow-x: auto; scrollbar-width: none;
}
.nav-links::-webkit-scrollbar { display: none; }
.nav-links a {
  padding: 8px 12px; border-radius: 999px; white-space: nowrap;
  color: var(--muted); text-decoration: none; font-size: .9rem; font-weight: 500;
  transition: background .2s, color .2s;
}
.nav-links a:hover { color: var(--ink); background: var(--accent-soft); }
.nav-links a[aria-current="page"] { color: #fff; background: var(--accent); }

/* ---------- page transitions ---------- */
[data-page] { animation: fade .45s ease both; }
@keyframes fade { from { opacity: 0; transform: translateY(8px); } }

/* ---------- home hero ---------- */
.hero { padding: 72px 0 40px; text-align: center; }
.eyebrow {
  margin: 0 0 10px; color: var(--accent);
  font-size: .78rem; font-weight: 600; letter-spacing: .14em; text-transform: uppercase;
}
.hero h1, .page-hero h1 {
  margin: 0; font: 500 clamp(2.6rem, 7vw, 4.6rem)/1.05 var(--serif); letter-spacing: -.01em;
}
.roles { margin: 14px 0 0; color: var(--muted); font-size: 1.02rem; }
.whoami {
  max-width: 720px; margin: 24px auto 0;
  font: italic 400 clamp(1.15rem, 2.2vw, 1.4rem)/1.5 var(--serif);
}
.contact {
  display: inline-block; margin-top: 22px; padding: 9px 18px; border-radius: 999px;
  border: 1px solid var(--line); background: var(--surface);
  text-decoration: none; font-size: .92rem; font-weight: 500;
}
.contact:hover { border-color: var(--accent); }

/* ---------- tiles ---------- */
.tiles {
  display: grid; gap: 16px; margin-bottom: 72px;
  grid-template-columns: repeat(3, 1fr);
  grid-auto-rows: clamp(220px, 23vw, 290px);
  grid-template-areas:
    "emt emt research"
    "emt emt tech"
    "vb arts arts";
}
.t-emt { grid-area: emt; } .t-research { grid-area: research; } .t-tech { grid-area: tech; }
.t-vb { grid-area: vb; } .t-arts { grid-area: arts; }

.tile {
  position: relative; overflow: hidden; isolation: isolate;
  border-radius: var(--radius); color: #fff; text-decoration: none;
  box-shadow: 0 1px 2px rgba(0,0,0,.06), 0 8px 24px rgba(20,30,50,.08);
  animation: rise .7s cubic-bezier(.2,.7,.2,1) both;
  animation-delay: calc(var(--i) * 90ms);
  transition: transform .4s cubic-bezier(.2,.7,.2,1), box-shadow .4s;
}
@keyframes rise { from { opacity: 0; transform: translateY(24px) scale(.98); } }
.tile img {
  position: absolute; inset: 0; z-index: -2;
  width: 100%; height: 100%; object-fit: cover;
  transition: transform 1.1s cubic-bezier(.2,.7,.2,1);
}
.tile::after {
  content: ""; position: absolute; inset: 0; z-index: -1;
  background: linear-gradient(to top, rgba(8,16,30,.88) 0%, rgba(8,16,30,.35) 45%, rgba(8,16,30,0) 75%);
  transition: background .4s;
}
.tile .cap { position: absolute; left: 24px; right: 24px; bottom: 22px; }
.tile .tag { font-size: .75rem; font-weight: 600; letter-spacing: .14em; opacity: .75; }
.tile h2 { margin: 4px 0 0; font: 500 clamp(1.45rem, 2.4vw, 2.1rem)/1.15 var(--serif); }
.t-emt h2 { font-size: clamp(1.8rem, 3.4vw, 2.8rem); }
.tile .teaser {
  margin: 0; max-height: 0; opacity: 0; overflow: hidden;
  font-size: .92rem; line-height: 1.45; color: rgba(255,255,255,.88);
  transition: max-height .45s ease, opacity .35s ease, margin .45s ease;
}
.tile .go {
  display: inline-block; margin-top: 10px; font-size: .82rem; font-weight: 600;
  letter-spacing: .04em; transform: translateX(-4px); opacity: .8;
  transition: transform .3s, opacity .3s;
}
.tile:hover, .tile:focus-visible { transform: translateY(-4px); box-shadow: 0 2px 4px rgba(0,0,0,.08), 0 18px 40px rgba(20,30,50,.18); }
.tile:hover img, .tile:focus-visible img { transform: scale(1.07); }
.tile:hover::after, .tile:focus-visible::after {
  background: linear-gradient(to top, rgba(8,16,30,.92) 0%, rgba(8,16,30,.5) 55%, rgba(8,16,30,.1) 100%);
}
.tile:hover .teaser, .tile:focus-visible .teaser { max-height: 5em; opacity: 1; margin-top: 8px; }
.tile:hover .go, .tile:focus-visible .go { transform: none; opacity: 1; }
.tile:focus-visible { outline: 3px solid var(--accent); outline-offset: 3px; }
@media (hover: none) {
  .tile .teaser { max-height: 5em; opacity: 1; margin-top: 8px; }
}

/* ---------- latest updates ---------- */
.updates { margin-bottom: 40px; }
.updates .section-title { margin-top: 0; }
.update-list { list-style: none; margin: 0; padding: 0; border-top: 1px solid var(--line); }
.update-list li {
  display: grid; grid-template-columns: 110px 1fr; gap: 20px; align-items: baseline;
  padding: 16px 4px; border-bottom: 1px solid var(--line);
}
.update-list time {
  color: var(--accent); font-size: .78rem; font-weight: 600; letter-spacing: .12em; text-transform: uppercase;
}
.update-list p { margin: 0; font: 1.12rem/1.5 var(--serif); }

/* ---------- resume-style about ---------- */
.resume {
  max-width: 860px; margin-bottom: 80px; padding: 44px clamp(20px, 5vw, 56px);
  background: var(--surface); border: 1px solid var(--line); border-radius: 6px;
  font: 1.08rem/1.55 var(--serif);
}
.resume h3 {
  margin: 30px 0 10px; padding-bottom: 3px; border-bottom: 1.5px solid var(--ink);
  font: 600 1.02rem/1.3 var(--serif); text-transform: uppercase; letter-spacing: .02em;
}
.resume h3:first-child { margin-top: 0; }
.resume .row { display: flex; justify-content: space-between; gap: 16px; flex-wrap: wrap; }
.resume ul { margin: 6px 0 0; padding-left: 1.4em; }
.resume li { margin: 3px 0; }
.resume p { margin: 6px 0 0; }
.resume .gallery { margin-top: 18px; font-family: var(--sans); }

/* ---------- sub pages ---------- */
.page-hero { padding: 64px 0 32px; }
.page-hero h1 { font-size: clamp(2.3rem, 6vw, 4rem); }
.lede { max-width: 720px; margin: 16px 0 0; color: var(--muted); font-size: 1.12rem; }

.cards {
  display: grid; gap: 16px; margin-bottom: 16px;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
}
.card {
  background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius);
  padding: 28px; color: inherit;
}
.card-wide { grid-column: 1 / -1; }
.kicker {
  margin: 0 0 6px; color: var(--accent);
  font-size: .76rem; font-weight: 600; letter-spacing: .12em; text-transform: uppercase;
}
.card h2 { margin: 0 0 12px; font: 500 1.6rem/1.2 var(--serif); }
.card ul { margin: 0; padding-left: 1.2em; }
.card li { margin: 6px 0; }
.card p { margin: 0 0 10px; }
.card-link { text-decoration: none; transition: border-color .2s, transform .3s; }
.card-link:hover { border-color: var(--accent); transform: translateY(-2px); }
.card-link:hover .btn { background: #142e55; }
.gh { width: 1.1em; height: 1.1em; vertical-align: -.12em; margin-right: 4px; }

.links { display: flex; align-items: center; gap: 10px; margin-top: 18px; flex-wrap: wrap; }
.btn {
  display: inline-flex; align-items: center; gap: 6px; padding: 9px 16px; border-radius: 999px;
  background: var(--accent); color: #fff; text-decoration: none; font-size: .9rem; font-weight: 500;
}
.btn:hover { background: #142e55; }
.social {
  display: inline-grid; place-items: center; width: 40px; height: 40px; border-radius: 50%; color: #fff;
}
.social svg { width: 20px; height: 20px; }
.social.fb { background: #1877f2; }
.social.fb svg { fill: currentColor; }
.social.ig { background: radial-gradient(circle at 30% 107%, #fdf497 0%, #fd5949 45%, #d6249f 60%, #285aeb 90%); }
.social:hover { filter: brightness(1.08); }

.cert-id {
  display: inline-flex; gap: 10px; align-items: baseline; padding: 10px 16px;
  border-radius: 10px; background: var(--accent-soft);
  font: 600 1.25rem/1 var(--sans); letter-spacing: .04em; font-variant-numeric: tabular-nums;
}
.cert-id span { font-size: .72rem; letter-spacing: .14em; color: var(--accent); }

.section-title { margin: 48px 0 16px; font: 500 1.8rem/1.2 var(--serif); }

/* ---------- galleries ---------- */
.gallery { columns: 3 260px; column-gap: 14px; margin-bottom: 24px; }
.gallery figure { margin: 0 0 14px; break-inside: avoid; }
.gallery img {
  width: 100%; border-radius: 12px; cursor: zoom-in;
  transition: transform .4s cubic-bezier(.2,.7,.2,1), box-shadow .4s;
}
.gallery img:hover { transform: scale(1.015); box-shadow: 0 10px 28px rgba(20,30,50,.16); }
.gallery figcaption { margin-top: 6px; color: var(--muted); font-size: .85rem; }
.gallery-2 { columns: 2 220px; }
.gallery-certs { columns: 4 180px; }

/* ---------- slides ---------- */
.slides {
  background: #0f1b2e; border-radius: var(--radius); padding: 16px; color: #fff;
}
.slide-stage {
  position: relative; aspect-ratio: 16 / 9; display: grid; place-items: center;
  background: #0b1424; border-radius: 10px; overflow: hidden;
}
#slide-canvas { width: 100%; height: 100%; object-fit: contain; }
.slide-status { position: absolute; margin: 0; color: rgba(255,255,255,.7); font-size: .9rem; }
.slide-controls { display: flex; align-items: center; justify-content: center; gap: 14px; padding-top: 14px; }
.slide-controls button {
  width: 44px; height: 44px; border-radius: 50%; border: 1px solid rgba(255,255,255,.25);
  background: transparent; color: #fff; font-size: 1.1rem; cursor: pointer;
}
.slide-controls button:hover:not(:disabled) { background: rgba(255,255,255,.12); }
.slide-controls button:disabled { opacity: .35; cursor: default; }
#slide-count { min-width: 70px; text-align: center; font-variant-numeric: tabular-nums; }
.slide-dl { margin-left: 8px; color: #b9cdf0; font-size: .88rem; }

.story p { max-width: 820px; }
.story blockquote {
  margin: 18px 0; padding: 4px 0 4px 20px; border-left: 3px solid var(--accent);
  font: italic 400 1.35rem/1.45 var(--serif); max-width: 760px;
}

/* ---------- knowledge-base charts ---------- */
.kb {
  margin: 16px 0; padding: clamp(20px, 4vw, 36px); border-radius: var(--radius);
  background: #0b0f15; color: #e8edf5;
}
.kb .kicker { color: #9fb7e0; }
.kb-head h2 { margin: 0 0 10px; font: 500 1.8rem/1.2 var(--serif); }
.kb-head p { margin: 0; max-width: 760px; color: #b7c2d3; }
.kb figure { margin: 0; }
.kb img { width: 100%; border-radius: 10px; cursor: zoom-in; }
.kb figcaption { margin-top: 8px; color: #8d99ab; font-size: .85rem; }
.kb-main { margin-top: 24px !important; }
.kb-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; margin-top: 20px; }
.kb-wide { grid-column: 1 / -1; }
.kb-wide img { max-width: 760px; margin-inline: auto; }
.kb-wide figcaption { text-align: center; }

/* ---------- technology ---------- */
.tech-grid { display: grid; grid-template-columns: 2fr 3fr; gap: 16px; align-items: stretch; }
.app-card {
  position: relative; display: block; overflow: hidden; border-radius: var(--radius);
  background: #0f2a5c;
}
.app-card img { width: 100%; height: 100%; object-fit: cover; transition: transform .8s cubic-bezier(.2,.7,.2,1); }
.app-card:hover img { transform: scale(1.04); }
.app-cta {
  position: absolute; left: 50%; bottom: 18px; transform: translateX(-50%);
  padding: 10px 20px; border-radius: 999px; white-space: nowrap;
  background: #fff; color: var(--accent); font-weight: 600; font-size: .92rem; text-decoration: none;
  box-shadow: 0 6px 20px rgba(0,0,0,.25);
}
.video-block { align-self: center; }
.block-title { margin: 0 0 12px; font: 500 1.5rem/1.2 var(--serif); text-align: center; }
.video {
  position: relative; aspect-ratio: 16 / 9; width: 100%;
  border-radius: var(--radius); overflow: hidden; background: #000;
}
.video iframe { position: absolute; inset: 0; width: 100%; height: 100%; border: 0; }
.stats {
  display: grid; grid-template-columns: repeat(4, 1fr); gap: 16px; margin: 16px 0;
}
.stats div {
  background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius); padding: 20px 22px;
}
.stats b { display: block; font: 500 2.4rem/1 var(--serif); color: var(--accent); }
.stats span { display: block; margin-top: 6px; color: var(--muted); font-size: .88rem; line-height: 1.4; }

/* ---------- arts ---------- */
.violin { display: grid; grid-template-columns: minmax(220px, 1fr) 2fr; gap: 16px; margin-bottom: 16px; align-items: start; }
.violin-photo { margin: 0; }
.violin-photo img { border-radius: var(--radius); cursor: zoom-in; }

/* ---------- footer ---------- */
.footer {
  display: flex; justify-content: space-between; gap: 12px; flex-wrap: wrap;
  padding: 28px 0 40px; margin-top: 56px; border-top: 1px solid var(--line);
  color: var(--muted); font-size: .9rem;
}

/* ---------- lightbox ---------- */
.lightbox {
  width: 100vw; height: 100vh; max-width: none; max-height: none; margin: 0; padding: 0;
  border: 0; background: rgba(6,10,18,.94);
}
.lightbox[open] { display: grid; place-items: center; }
.lightbox::backdrop { background: rgba(6,10,18,.6); }
#lb-img { max-width: calc(100vw - 32px); max-height: calc(100vh - 96px); border-radius: 8px; }
.lightbox button {
  position: absolute; width: 48px; height: 48px; border-radius: 50%; border: 0;
  background: rgba(255,255,255,.12); color: #fff; font-size: 1.8rem; line-height: 1; cursor: pointer;
}
.lightbox button:hover { background: rgba(255,255,255,.24); }
.lb-close { top: 16px; right: 16px; }
.lb-prev { left: 16px; top: 50%; transform: translateY(-50%); }
.lb-next { right: 16px; top: 50%; transform: translateY(-50%); }

/* ---------- responsive ---------- */
@media (max-width: 860px) {
  .brand { font-size: 1.15rem; }
  .nav { gap: 12px; }
  .tiles {
    grid-template-columns: 1fr 1fr;
    grid-auto-rows: 240px;
    grid-template-areas: "emt emt" "research tech" "vb arts";
  }
  .tech-grid, .violin { grid-template-columns: 1fr; }
  .kb-grid { grid-template-columns: 1fr 1fr; }
  .stats { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 560px) {
  .tiles { grid-template-columns: 1fr; grid-template-areas: "emt" "research" "tech" "vb" "arts"; }
  .hero { padding-top: 48px; }
  .card { padding: 22px; }
  .update-list li { grid-template-columns: 1fr; gap: 4px; }
  .kb-grid { grid-template-columns: 1fr; }
  .lb-prev, .lb-next { top: auto; bottom: 16px; transform: none; }
}
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation: none !important; transition: none !important; }
}