:root {
  --deep: #020617;
  --mid: #0f172a;
  --card: #111a2e;
  --card-hover: #16213a;
  --line: #1e293b;
  --text: #f1f5f9;
  --muted: #b6c2d4;
  --dim: #9aa8bd;
  --col: 760px;
  --radius: 22px;
  --font: 'Google Sans Flex', 'Google Sans', system-ui, -apple-system, 'Segoe UI', sans-serif;
}

* { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; scroll-padding-top: 72px; }
body {
  background: var(--deep);
  color: var(--text);
  font-family: var(--font);
  font-size: 17px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}
img { display: block; max-width: 100%; }
a { color: inherit; text-decoration: none; }
b { color: var(--text); font-weight: 500; }

.col { width: 100%; max-width: calc(var(--col) + 48px); margin: 0 auto; padding: 0 24px; }
.band { padding: 120px 0; }
.band-deep { background: var(--deep); }
.band-mid { background: var(--mid); }
.band-light { background: #1e293b; }

/* Nav */
.nav {
  position: sticky; top: 0; z-index: 10;
  background: rgba(2, 6, 23, 0.8);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--line);
}
.nav-inner { display: flex; align-items: center; justify-content: space-between; height: 60px; }
.brand { display: flex; align-items: center; gap: 12px; font-weight: 500; font-size: 15px; }
.brand img { width: 28px; height: 28px; border-radius: 50%; object-fit: cover; }
.nav-links { display: flex; gap: 24px; font-size: 14px; font-weight: 500; }
.nav-links a { color: var(--text); opacity: .85; transition: opacity .2s; }
.nav-links a:hover { opacity: 1; }

/* Hero */
.hero { padding-top: 96px; }
.hero-grid { display: grid; grid-template-columns: 300px 1fr; gap: 56px; align-items: start; }
/* optical nudge so the photo edge lines up with the headline cap height */
.hero-grid .portrait { margin-top: 10px; }
.portrait { border-radius: var(--radius); overflow: hidden; aspect-ratio: 4 / 5; background: var(--card); }
.portrait img { width: 100%; height: 100%; object-fit: cover; object-position: 50% 12%; }
h1 { font-size: 42px; line-height: 1.14; font-weight: 500; letter-spacing: -0.02em; }
.lede { margin-top: 24px; font-size: 19px; line-height: 1.55; color: var(--muted); }
.actions { display: flex; flex-wrap: wrap; gap: 14px; margin-top: 32px; }
.pill {
  display: inline-flex; align-items: center; gap: 10px;
  padding: 8px 16px; border-radius: 999px;
  font-size: 15px; font-weight: 500;
  transition: transform .2s, background .2s;
}
.pill svg { width: 16px; height: 16px; fill: none; stroke: currentColor; stroke-width: 2; stroke-linecap: round; stroke-linejoin: round; }
.pill-solid { background: #e2e8f0; color: var(--deep); }
.pill-solid:hover { background: #fff; transform: translateY(-1px); }
.pill-outline { border: 1px solid #cbd5e1; color: var(--text); }
.pill-outline:hover { background: rgba(255,255,255,.08); transform: translateY(-1px); }

.stats { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; margin-top: 48px; }
.stat { background: var(--card); border-radius: var(--radius); padding: 30px 32px; }
.stat strong { display: block; font-size: 30px; font-weight: 500; letter-spacing: -0.01em; }
.stat strong span { color: var(--dim); }
.stat strong .to { font-size: .8em; }
.stat p { margin-top: 10px; font-size: 15px; line-height: 1.5; color: var(--muted); }

/* Narrative */
.statement { font-size: 38px; line-height: 1.2; font-weight: 500; letter-spacing: -0.015em; }
.prose { margin-top: 40px; color: var(--muted); font-size: 16px; line-height: 1.75; max-width: 70ch; }
.prose p + p { margin-top: 18px; }

/* Work */
.section-title { font-size: 36px; font-weight: 500; letter-spacing: -0.015em; margin-bottom: 40px; }
.section-sub { margin: -24px 0 40px; color: var(--muted); }
.work { display: block; }
.work + .work { margin-top: 72px; }
.work-media { border-radius: var(--radius); overflow: hidden; aspect-ratio: 16 / 9; background: #e7e5df; }
.work-media img { width: 100%; height: 100%; object-fit: cover; object-position: top center; transition: transform .6s cubic-bezier(.2,.7,.2,1); }
.work:hover .work-media img { transform: scale(1.03); }
.work-meta { display: flex; align-items: center; gap: 10px; margin-top: 20px; font-size: 14px; font-weight: 500; }
.work-meta i { width: 3px; height: 3px; border-radius: 50%; background: var(--dim); }
.work-meta { color: var(--text); }
.badge {
  display: inline-grid; place-items: center; width: 22px; height: 22px; border-radius: 50%;
  background: var(--c); color: #fff; font-size: 11px; font-weight: 600;
}
.work h3 { margin-top: 8px; font-size: 30px; line-height: 1.25; font-weight: 500; letter-spacing: -0.01em; transition: color .2s; }
.work:hover h3 { color: #cbd5e1; }

/* AI Lab */
.lab { display: grid; gap: 16px; }
.lab-card { display: block; background: var(--card); border-radius: var(--radius); padding: 32px; transition: background .2s; }
.lab-card:hover { background: var(--card-hover); }
.lab-card h3 { margin-top: 14px; font-size: 22px; font-weight: 500; }
.lab-card p { margin-top: 8px; color: var(--muted); font-size: 15px; }
.status { display: inline-flex; align-items: center; gap: 8px; font-size: 13px; font-weight: 500; color: var(--muted); }
.status::before { content: ''; width: 7px; height: 7px; border-radius: 50%; background: var(--dim); }
.status.live::before { background: #4ade80; }
.more { display: inline-flex; align-items: center; gap: 8px; margin-top: 20px; font-size: 14px; font-weight: 500; }
.more svg { width: 15px; height: 15px; fill: none; stroke: currentColor; stroke-width: 2; stroke-linecap: round; stroke-linejoin: round; transition: transform .2s; }
.lab-card:hover .more svg { transform: translateX(4px); }

/* Contact & footer */
.contact h2 { font-size: 38px; line-height: 1.2; font-weight: 500; letter-spacing: -0.015em; }
.contact p { margin-top: 16px; color: var(--muted); }
.footer { padding: 40px 0; border-top: 1px solid var(--line); }
.footer-inner { display: flex; justify-content: space-between; flex-wrap: wrap; gap: 16px; font-size: 14px; color: var(--dim); }
.footer-inner nav { display: flex; gap: 20px; }
.footer-inner a:hover { color: var(--text); }

/* Reveal */
.reveal { opacity: 0; transform: translateY(16px); transition: opacity .7s ease, transform .7s ease; }
.reveal.in { opacity: 1; transform: none; }
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .reveal { opacity: 1; transform: none; transition: none; }
  .work-media img { transition: none; }
}

/* Responsive */
@media (max-width: 720px) {
  body { font-size: 16px; }
  .band { padding: 80px 0; }
  .hero { padding-top: 56px; }
  .col { padding: 0 16px; }
  .hero-grid { grid-template-columns: 1fr; gap: 28px; }
  .portrait { width: 190px; aspect-ratio: 4 / 5; }
  h1 { font-size: 36px; }
  .lede { font-size: 18px; }
  .stats { grid-template-columns: 1fr; }
  .statement, .contact h2 { font-size: 28px; }
  .section-title { font-size: 30px; }
  .work + .work { margin-top: 64px; }
  .work h3 { font-size: 23px; }
  .nav-links { gap: 16px; }
  .brand span { display: none; }
}

/* ---------- Multi-page additions ---------- */
.nav-links a[aria-current="page"] { opacity: 1; text-decoration: underline; text-underline-offset: 6px; text-decoration-thickness: 1px; }
.portrait video, .portrait img { width: 100%; height: 100%; object-fit: cover; object-position: 50% 12%; display: block; }
.eyebrow { font-size: 13px; font-weight: 500; letter-spacing: .08em; text-transform: uppercase; color: var(--muted); margin-bottom: 16px; }
.page-hero { padding: 96px 0 72px; }
.page-hero h1 { max-width: 680px; }
.page-hero .lede { max-width: 680px; }
.page-hero.card-hero .col > div { background: var(--mid); border-radius: 0 0 32px 32px; padding: 72px 48px; margin: -96px -48px 0; }
.link-row { margin-top: 56px; }
.text-link { display: inline-flex; align-items: center; gap: 8px; font-size: 15px; font-weight: 500; }
.text-link svg { width: 15px; height: 15px; fill: none; stroke: currentColor; stroke-width: 2; stroke-linecap: round; stroke-linejoin: round; transition: transform .2s; }
.text-link:hover svg { transform: translateX(4px); }

/* About */
.col-wide { max-width: calc(960px + 48px); }
.about-grid { display: grid; grid-template-columns: 1fr 300px; gap: 56px; align-items: start; }
.about-grid h1 { font-size: 42px; }
.about-grid .prose { margin-top: 32px; }
.about-side { position: sticky; top: 96px; }
.about-side .portrait { aspect-ratio: 4 / 5; }
.side-title { margin: 32px 0 16px; font-size: 12px; font-weight: 500; letter-spacing: .08em; text-transform: uppercase; color: var(--muted); }
.timeline { list-style: none; display: grid; gap: 18px; }
.timeline li { display: grid; grid-template-columns: 32px 1fr; gap: 12px; align-items: start; }
.timeline .badge { width: 32px; height: 32px; font-size: 13px; }
.timeline strong { display: block; font-size: 14px; font-weight: 500; }
.timeline div span { display: block; font-size: 13px; color: var(--muted); line-height: 1.4; }
.timeline em { font-style: normal; font-size: 13px; color: var(--dim); }
.side-links { display: flex; gap: 24px; margin-top: 28px; padding-top: 24px; border-top: 1px solid var(--line); }
.skills { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; margin-top: 8px; }
.skill { background: var(--card); border-radius: var(--radius); padding: 28px; }
.skill h3 { font-size: 18px; font-weight: 500; line-height: 1.3; }
.skill p { margin-top: 10px; font-size: 14px; color: var(--muted); }

/* AI Lab entries */
.entry + .entry { border-top: 1px solid var(--line); margin-top: 96px; padding-top: 96px; }
.entry h2 { font-size: 34px; line-height: 1.2; font-weight: 500; letter-spacing: -0.015em; }
.entry .byline { margin-top: 12px; color: var(--dim); font-size: 15px; }
.entry .byline b { color: var(--muted); }
.entry-points { display: grid; grid-template-columns: repeat(2, 1fr); gap: 16px; margin-top: 36px; }
.entry-points div { background: var(--card); border-radius: 18px; padding: 22px 24px; }
.entry-points strong { display: block; font-size: 15px; font-weight: 500; }
.entry-points span { display: block; margin-top: 4px; font-size: 14px; color: var(--muted); }
.entry .prose { margin-top: 36px; }
.entry .prose b { font-weight: 600; }

/* Contact form */
.form { display: grid; grid-template-columns: 1fr 1fr; gap: 20px; margin-top: 48px; }
.field { display: grid; gap: 8px; }
.field.full { grid-column: 1 / -1; }
.field label { font-size: 13px; color: var(--muted); }
.field input, .field textarea {
  width: 100%; font: inherit; font-size: 15px; color: var(--text);
  background: var(--card); border: 1px solid transparent; border-radius: 10px; padding: 12px 14px;
  transition: border-color .2s;
}
.field textarea { min-height: 160px; resize: vertical; }
.field input::placeholder, .field textarea::placeholder { color: #61708a; opacity: 1; }
.field input, .field textarea { border-color: #1e293b; }
.field input:focus, .field textarea:focus { outline: none; border-color: #64748b; }
.hp { position: absolute; left: -9999px; width: 1px; height: 1px; overflow: hidden; }
.form-foot { grid-column: 1 / -1; display: flex; align-items: center; gap: 20px; flex-wrap: wrap; }
.form button { border: 0; cursor: pointer; font: inherit; padding: 10px 28px; }
.form button[disabled] { opacity: .6; cursor: wait; }
.form-status { font-size: 14px; color: var(--muted); }
.form-status.ok { color: #4ade80; }
.form-status.err { color: #fca5a5; }
.contact-alt { margin-top: 64px; padding-top: 32px; border-top: 1px solid var(--line); color: var(--muted); font-size: 15px; }
.contact-alt a { color: var(--text); text-decoration: underline; text-underline-offset: 4px; }
.min-page { min-height: calc(100vh - 60px - 97px); }

@media (max-width: 860px) {
  .about-grid { grid-template-columns: 1fr; }
  .about-side { position: static; max-width: 420px; }
  .skills { grid-template-columns: 1fr; }
}
@media (max-width: 720px) {
  .page-hero { padding: 56px 0 48px; }
  .page-hero.card-hero .col > div { padding: 56px 16px 40px; margin: -56px -16px 0; border-radius: 0 0 24px 24px; }
  .about-grid h1 { font-size: 32px; }
  .entry h2 { font-size: 26px; }
  .entry + .entry { margin-top: 64px; padding-top: 64px; }
  .entry-points, .form { grid-template-columns: 1fr; }
}

/* ---------- v3 additions ---------- */
.skip-link {
  position: absolute; left: -9999px; top: 0; z-index: 20;
  background: #e2e8f0; color: var(--deep); padding: 10px 16px; border-radius: 0 0 10px 0; font-weight: 500;
}
.skip-link:focus { left: 0; }
:focus-visible { outline: 2px solid #cbd5e1; outline-offset: 3px; border-radius: 4px; }

.hero .eyebrow { margin-bottom: 18px; letter-spacing: .05em; }
.hero-link { margin-top: 20px; }
.stats-3 { grid-template-columns: repeat(3, 1fr); }

/* Evidence labelling */
.ev-tag {
  display: inline-block; margin-bottom: 14px;
  font-size: 12px; font-weight: 500; letter-spacing: .04em; text-transform: uppercase;
  color: #cbd5e1; background: rgba(226, 232, 240, .12);
  padding: 4px 10px; border-radius: 999px;
}
.ev-label {
  display: inline-block; min-width: 74px; margin-right: 10px;
  font-size: 12px; font-weight: 500; letter-spacing: .04em; text-transform: uppercase; color: var(--dim);
}
.measure { margin-top: 32px; border-top: 1px solid var(--line); padding-top: 20px; }
.measure summary { cursor: pointer; font-size: 15px; font-weight: 500; color: var(--text); }
.measure summary::marker { color: var(--dim); }
.measure p { margin-top: 14px; font-size: 14px; line-height: 1.7; color: var(--muted); max-width: 75ch; }

/* Work cards with facts */
.work { display: block; border-radius: var(--radius); }
.work-problem { margin-top: 12px; color: var(--muted); font-size: 16px; line-height: 1.6; max-width: 68ch; }
.work-facts {
  display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 16px;
  margin-top: 20px; padding: 18px 0; border-top: 1px solid var(--line); border-bottom: 1px solid var(--line);
}
.work-facts dt { font-size: 12px; letter-spacing: .06em; text-transform: uppercase; color: var(--dim); }
.work-facts dd { margin-top: 5px; font-size: 14px; line-height: 1.45; color: var(--text); }
.work-evidence, .work-result { margin-top: 12px; font-size: 14px; line-height: 1.6; color: var(--muted); }
.work-result { color: var(--text); }
.work-result em { font-style: normal; color: var(--dim); }
.work .more { color: var(--accent, #cbd5e1); }
.work:hover .more svg { transform: translateX(4px); }
.work-media { border-top: 3px solid var(--accent, transparent); }

.work-grid { display: grid; grid-template-columns: 1fr; gap: 72px; }
.work-sm h3 { font-size: 21px; margin-top: 10px; }
.work-sm .work-media { aspect-ratio: 16 / 10; }
.work-sm + .work-sm { margin-top: 0; }
.work-grid .work + .work { margin-top: 0; }

/* Leadership principles */
.principles { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; }
.principle { background: var(--card); border-radius: var(--radius); padding: 28px; }
.principle span { font-size: 13px; font-weight: 600; color: var(--dim); }
.principle h3 { margin-top: 10px; font-size: 19px; font-weight: 500; }
.principle p { margin-top: 10px; font-size: 15px; line-height: 1.6; color: var(--muted); }

/* AI Lab stages and limits */
.status.pilot::before { background: #fbbf24; }
.status-key { background: var(--card); border-radius: var(--radius); padding: 26px 28px; margin-bottom: 64px; }
.status-key ul { margin: 0; padding-left: 18px; display: grid; gap: 8px; }
.status-key li { font-size: 14px; line-height: 1.6; color: var(--muted); }
.limits { margin-top: 28px; padding: 22px 24px; border-radius: 18px; border: 1px solid var(--line); background: rgba(148, 163, 184, .06); }
.limits ul { margin: 12px 0 0; padding-left: 18px; display: grid; gap: 10px; }
.limits li { font-size: 14px; line-height: 1.65; color: var(--muted); }
.limits b { color: var(--text); }

/* Case-study artefacts */
.artefact { margin: 32px 0 0; }
.artefact img { width: 100%; border-radius: 18px; background: #e7e5df; }
.artefact figcaption { margin-top: 12px; font-size: 14px; line-height: 1.6; color: var(--muted); }
.ba-pair { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; margin-top: 24px; }
.ba-pair figure { margin: 0; background: var(--card); border-radius: 18px; padding: 16px; }
.ba-pair img { width: 100%; border-radius: 12px; }
.ba-pair .ev-tag { margin-bottom: 12px; }
.ba-pair figcaption { margin-top: 12px; font-size: 13px; line-height: 1.55; color: var(--muted); }

@media (max-width: 860px) {
  .stats-3, .principles { grid-template-columns: 1fr; }
  .work-grid { grid-template-columns: 1fr; gap: 48px; }
}
@media (max-width: 720px) {
  .work-facts { grid-template-columns: 1fr; gap: 12px; }
  .ba-pair { grid-template-columns: 1fr; }
}

/* ---------- Cover motion (matches the reference's looping cover videos) ---------- */
@keyframes cover-drift {
  0%   { transform: scale(1.02) translate3d(0, 0, 0); }
  50%  { transform: scale(1.05) translate3d(-0.5%, -0.6%, 0); }
  100% { transform: scale(1.02) translate3d(0, 0, 0); }
}
.work-media { overflow: hidden; }
.work-media img,
.project-cover img {
  animation: cover-drift 18s ease-in-out infinite;
  will-change: transform;
}
.work:hover .work-media img { animation-play-state: paused; transform: scale(1.045); }
@media (prefers-reduced-motion: reduce) {
  .work-media img, .project-cover img { animation: none; }
}

/* ---------- Tool stack marquee ---------- */
.tool-marquee {
  position: relative; overflow: hidden; margin-top: 8px; padding: 8px 0;
  -webkit-mask-image: linear-gradient(90deg, transparent, #000 8%, #000 92%, transparent);
          mask-image: linear-gradient(90deg, transparent, #000 8%, #000 92%, transparent);
}
.tool-track {
  display: flex; align-items: flex-start; gap: 36px; width: max-content;
  margin: 0; padding: 0; list-style: none;
  animation: tool-scroll 38s linear infinite;
}
.tool-marquee:hover .tool-track { animation-play-state: paused; }
.tool-track li {
  display: grid; justify-items: center; gap: 14px; width: 108px;
  transition: transform .3s ease;
}
.tool-track li:hover { transform: translateY(-5px); }
.tool-track li:hover .tool-name { color: var(--text); }
.tool-mark {
  display: grid; place-items: center;
  width: 72px; height: 72px; border-radius: 20px;
  background: var(--bg);
  box-shadow: 0 6px 18px rgba(0, 0, 0, .35), inset 0 0 0 1px rgba(255, 255, 255, .06);
}
.tool-logo { width: 34px; height: 34px; display: block; }
.tool-letters { font-size: 20px; font-weight: 600; letter-spacing: .02em; }
.tool-name { font-size: 14px; color: var(--muted); text-align: center; line-height: 1.3; transition: color .3s ease; }
@keyframes tool-scroll {
  from { transform: translate3d(0, 0, 0); }
  to   { transform: translate3d(-50%, 0, 0); }
}
@media (prefers-reduced-motion: reduce) {
  .tool-track { animation: none; flex-wrap: wrap; width: auto; gap: 28px 36px; }
  .tool-track li { opacity: 1; filter: none; }
  .tool-track li[aria-hidden="true"] { display: none; }
  .tool-marquee { -webkit-mask-image: none; mask-image: none; }
}

/* ---------- Footer ---------- */
.site-footer { background: #f8fafc; color: #0f172a; padding: 40px 0; }
.site-footer .footer-inner {
  display: flex; align-items: center; justify-content: space-between; gap: 20px; flex-wrap: wrap;
}
.footer-social { display: flex; align-items: center; gap: 22px; }
.footer-social a {
  display: grid; place-items: center; width: 44px; height: 44px; margin: -9px;
  border-radius: 12px; color: #334155;
  transition: color .2s ease, background .2s ease, transform .2s ease;
}
.footer-social a:hover,
.footer-social a:focus-visible { color: #020617; background: rgba(15, 23, 42, .08); transform: translateY(-1px); }
.footer-social svg { width: 26px; height: 26px; }
.site-footer span { font-size: 15px; color: #64748b; }
@media (max-width: 560px) {
  .site-footer .footer-inner { flex-direction: column; align-items: flex-start; gap: 16px; }
}