:root{
  --paper:#F3F5F8; --surface:#FFFFFF; --ink:#1A1E2B; --muted:#5A6275; --rule:#D5DAE2;
  --tunnel:#52576E; --cold:#2B5FD9; --hot:#C8341F;
  --scale:linear-gradient(180deg,#9E1B12 0%,#D9582B 18%,#EDC46A 36%,#F4F4EE 50%,#7FD3D8 64%,#3A83D6 82%,#1B2A86 100%);
  --scale-h:linear-gradient(90deg,#1B2A86 0%,#3A83D6 18%,#7FD3D8 36%,#F4F4EE 50%,#EDC46A 64%,#D9582B 82%,#9E1B12 100%);
  --ff:"Archivo",system-ui,-apple-system,"Segoe UI",Roboto,"Helvetica Neue",Arial,sans-serif;
  box-sizing:border-box;
  padding-top:env(safe-area-inset-top,0px);
  padding-bottom:env(safe-area-inset-bottom,0px);
}
@media (prefers-color-scheme:dark){
  :root:not([data-theme="light"]){
    --paper:#141722; --surface:#1C2030; --ink:#E8EBF2; --muted:#9AA3B8; --rule:#2E3447;
    --cold:#6E9BFF; --hot:#FF7A5C;
  }
}
:root[data-theme="dark"]{
  --paper:#141722; --surface:#1C2030; --ink:#E8EBF2; --muted:#9AA3B8; --rule:#2E3447;
  --cold:#6E9BFF; --hot:#FF7A5C;
}
html{scroll-padding-top:calc(env(safe-area-inset-top,0px) + 72px);scroll-behavior:smooth}
@media (prefers-reduced-motion:reduce){html{scroll-behavior:auto}}
body{background:var(--paper);color:var(--ink);font-family:var(--ff);font-size:1.0625rem;line-height:1.6;font-variation-settings:"wdth" 100}
a{color:var(--cold)}
h1,h2,h3,h4,h5,h6,.h1,.h2,.h3,.h4{color:inherit;font-family:var(--ff)}
a:hover{color:var(--hot)}
:focus-visible{outline:3px solid var(--cold);outline-offset:3px;border-radius:2px}
img{max-width:100%;height:auto}

/* Nav */
.site-nav{position:sticky;top:env(safe-area-inset-top,0px);z-index:1030;background:color-mix(in srgb,var(--paper) 88%,transparent);backdrop-filter:saturate(1.4) blur(10px);-webkit-backdrop-filter:saturate(1.4) blur(10px);border-bottom:1px solid var(--rule)}
.site-nav .navbar{padding:.7rem 0;background:none!important;box-shadow:none}
.brand{font-weight:750;font-variation-settings:"wdth" 118;letter-spacing:-.01em;color:var(--ink)!important;text-decoration:none;font-size:1.15rem}
.brand span{color:var(--muted);font-weight:400}
.site-nav .nav-link{color:var(--ink)!important;font-weight:500;padding:.4rem .9rem!important;text-shadow:none}
.site-nav .nav-link:hover{color:var(--cold)!important}
.navbar-toggler{border:1px solid var(--rule);color:var(--ink);padding:.35rem .6rem}
.navbar-toggler-icon{background-image:none;width:1.4rem;height:1rem;position:relative;display:inline-block}
.navbar-toggler-icon::before,.navbar-toggler-icon::after{content:"";position:absolute;left:0;right:0;height:2px;background:var(--ink)}
.navbar-toggler-icon::before{top:2px}.navbar-toggler-icon::after{bottom:2px}

/* Hero */
.hero{background:#52576E;color:#fff;position:relative;overflow:hidden}
.hero-grid{display:grid;grid-template-columns:minmax(0,1fr);min-height:min(88vh,860px)}
.hero-img{grid-area:1/1;width:100%;height:100%;object-fit:cover;object-position:62% 50%}
.hero-copy{grid-area:1/1;align-self:end;padding:2rem 0 3.5rem;position:relative;z-index:2}
.hero-copy::before{content:"";position:absolute;inset:-40% -10vw 0 -10vw;background:linear-gradient(180deg,rgba(82,87,110,0) 0%,rgba(52,56,74,.78) 55%,rgba(40,43,58,.92) 100%);z-index:-1}
.hero h1{color:#fff;font-size:clamp(3.2rem,11vw,8.5rem);line-height:.9;font-weight:800;font-variation-settings:"wdth" 125;letter-spacing:-.03em;margin:0 0 1.1rem}
.hero .lede{font-size:clamp(1.1rem,2.1vw,1.4rem);max-width:36ch;line-height:1.45;color:#EEF0F6;margin-bottom:1.6rem}
.creds{display:flex;flex-wrap:wrap;gap:.5rem;margin:0;padding:0;list-style:none}
.creds li{border:1px solid rgba(255,255,255,.45);padding:.35rem .8rem;font-size:.92rem;border-radius:2px;background:rgba(20,22,32,.25)}

/* Signature: colour-bar contents legend */
.legend{position:absolute;right:clamp(1.2rem,4vw,3.5rem);top:50%;transform:translateY(-50%);z-index:3;display:none;align-items:stretch;gap:.9rem}
.legend .bar{width:14px;border-radius:1px;background:var(--scale);box-shadow:0 0 0 1px rgba(255,255,255,.35)}
.legend ol{list-style:none;margin:0;padding:0;display:flex;flex-direction:column;justify-content:space-between;min-height:320px}
.legend li{position:relative}
.legend li::before{content:"";position:absolute;left:-.9rem;top:50%;width:.55rem;height:1px;background:#fff}
.legend a{color:#fff;text-decoration:none;font-size:.95rem;font-weight:500}
.legend a:hover{text-decoration:underline;color:#fff}
.legend .axis{writing-mode:vertical-rl;transform:rotate(180deg);font-size:.8rem;color:rgba(255,255,255,.75);align-self:center}
@media (min-width:992px){.legend{display:flex}}
@media (max-width:767.98px){
  .hero-grid{min-height:0}
  .hero-img{grid-area:auto;height:auto;aspect-ratio:16/10;object-position:60% 50%}
  .hero-copy{grid-area:auto;padding:1.8rem 0 2.4rem}
  .hero-copy::before{display:none}
}

/* Sections */
section{padding:clamp(3.5rem,8vw,6.5rem) 0}
.sec-title{font-size:clamp(2rem,4.5vw,3.1rem);font-weight:780;font-variation-settings:"wdth" 118;letter-spacing:-.02em;line-height:1.02;margin-bottom:1.2rem}
.prose p{max-width:66ch}
.prose{color:var(--ink)}
.muted{color:var(--muted)}

.about-facts{border-top:1px solid var(--rule);margin-top:.4rem}
.about-facts div{display:grid;grid-template-columns:9.5rem 1fr;gap:1rem;padding:.9rem 0;border-bottom:1px solid var(--rule)}
.about-facts dt{font-weight:600;color:var(--muted);font-size:.95rem}
.about-facts dd{margin:0}

/* Projects */
.project{padding:clamp(3rem,7vw,5.5rem) 0;border-top:1px solid var(--rule)}
.project:first-of-type{border-top:0}
.project h3{font-size:clamp(1.8rem,3.6vw,2.6rem);font-weight:760;font-variation-settings:"wdth" 115;letter-spacing:-.015em;line-height:1.05;margin-bottom:.9rem}
.project .kicker{color:var(--muted);font-size:1rem;margin-bottom:.4rem}
.spec{list-style:none;padding:0;margin:1.4rem 0 0;border-top:1px solid var(--rule)}
.spec li{display:flex;justify-content:space-between;gap:1rem;padding:.55rem 0;border-bottom:1px solid var(--rule);font-size:.95rem}
.spec li span:first-child{color:var(--muted)}
.spec li span:last-child{text-align:right}
.lead-fig{margin:2.2rem 0 0}
.lead-fig img{width:100%;display:block;border-radius:3px;background:#5E5A58}
figcaption{font-size:.9rem;color:var(--muted);margin-top:.6rem;max-width:70ch}
.findings{margin-top:2rem}
.findings h4{font-size:1.05rem;font-weight:650;margin-bottom:.3rem}
.findings p{font-size:.98rem;color:var(--muted);margin-bottom:1.2rem}
.gallery{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:.75rem;margin-top:1.6rem}
@media (min-width:768px){.gallery{grid-template-columns:repeat(3,minmax(0,1fr))}}
.gallery button{padding:0;border:0;background:#6A6E80;border-radius:3px;overflow:hidden;aspect-ratio:16/10;display:block;width:100%;cursor:zoom-in}
.gallery button.light{background:#fff;border:1px solid var(--rule)}
.gallery img{width:100%;height:100%;object-fit:cover;display:block}
.lead-fig button{padding:0;border:0;background:none;display:block;width:100%;cursor:zoom-in}
.pending{border:1px dashed var(--rule);padding:1rem 1.2rem;border-radius:3px;color:var(--muted);font-size:.95rem;margin-top:1.4rem}


/* Interactive viewers */
.viewer{margin-top:2.4rem;border:1px solid var(--rule);border-radius:4px;background:var(--surface);overflow:hidden}
.viewer-head{padding:1.2rem 1.3rem 1rem;display:flex;flex-wrap:wrap;gap:1rem 2rem;justify-content:space-between;align-items:flex-end;border-bottom:1px solid var(--rule)}
.viewer-head h4{font-size:1.15rem;font-weight:680;margin-bottom:.25rem}
.viewer-head p{margin:0;font-size:.95rem;max-width:52ch}
.viewer-controls{display:flex;flex-direction:column;gap:.5rem;align-items:flex-start}
.seg{display:inline-flex;flex-wrap:wrap;border:1px solid var(--rule);border-radius:3px;overflow:hidden}
.seg button{border:0;border-right:1px solid var(--rule);background:transparent;color:var(--ink);padding:.4rem .8rem;font:500 .9rem var(--ff)}
.seg button:last-child{border-right:0}
.seg button[aria-pressed="true"]{background:var(--ink);color:var(--paper)}
.seg button:hover:not([aria-pressed="true"]){color:var(--cold)}
.viewer-frame{background:#fff}
.viewer-frame img{display:block;width:100%;height:auto;max-height:72vh;object-fit:contain}
.viewer-note{padding:.9rem 1.3rem;margin:0;color:var(--muted);font-size:.95rem;border-top:1px solid var(--rule)}
.gallery.single{grid-template-columns:1fr}
.gallery.single button{aspect-ratio:auto}
.gallery.single img{height:auto;object-fit:contain}


/* Hotspots */
.explore{display:grid;grid-template-columns:minmax(0,1fr);gap:1.4rem;margin-top:2.2rem}
@media (min-width:992px){.explore{grid-template-columns:minmax(0,1.75fr) minmax(0,1fr);align-items:start}}
.hotspot-stage{position:relative;border-radius:3px;overflow:hidden;background:#5E5A58}
.hotspot-stage img{display:block;width:100%}
.spot{position:absolute;transform:translate(-50%,-50%);width:2.1rem;height:2.1rem;border-radius:50%;border:2px solid #fff;background:rgba(20,22,32,.72);color:#fff;font:700 .95rem var(--ff);display:grid;place-items:center;padding:0;transition:transform .15s,background .15s}
.spot::after{content:"";position:absolute;inset:-7px;border-radius:50%;border:2px solid rgba(255,255,255,.6);animation:pulse 2.4s ease-out infinite}
.spot:hover,.spot.on{background:#fff;color:#1A1E2B;transform:translate(-50%,-50%) scale(1.12)}
.spot.on::after{animation:none;border-color:transparent}
@keyframes pulse{0%{transform:scale(.8);opacity:1}100%{transform:scale(1.5);opacity:0}}
.spot-list{list-style:none;margin:0;padding:0;border-top:1px solid var(--rule)}
.spot-list li{border-bottom:1px solid var(--rule)}
.spot-list button{display:flex;gap:.9rem;width:100%;text-align:left;background:none;border:0;padding:.8rem .2rem;color:var(--ink);font:inherit}
.spot-list .n{flex:0 0 1.7rem;height:1.7rem;border-radius:50%;border:1px solid var(--rule);display:grid;place-items:center;font-weight:700;font-size:.85rem}
.spot-list strong{display:block;font-weight:650}
.spot-list .d{display:none;color:var(--muted);font-size:.95rem;margin-top:.2rem}
.spot-list button.on .d{display:block}
.spot-list button.on .n{background:var(--ink);color:var(--paper);border-color:var(--ink)}
.spot-list button:hover strong{color:var(--cold)}
.hint{font-size:.9rem;color:var(--muted);margin-top:.7rem}

/* Full car explorer */
.carx{margin-top:2.2rem}
.carx-stage{position:relative;background:#fff;border:1px solid var(--rule);border-radius:3px;overflow:hidden}
.carx-main{display:block;width:100%;border:0;padding:0;background:#fff;cursor:zoom-in}
.carx-main img{display:block;width:100%;aspect-ratio:16/8;object-fit:contain;transition:opacity .25s}
.carx-main img.fade{opacity:0}
.carx-nav{position:absolute;top:50%;transform:translateY(-50%);width:2.6rem;height:2.6rem;border-radius:50%;border:1px solid #C9CED8;background:rgba(255,255,255,.92);color:#1A1E2B;font-size:1.6rem;line-height:1;display:grid;place-items:center;padding:0 0 .2rem}
.carx-nav.prev{left:.8rem}.carx-nav.next{right:.8rem}
.carx-nav:hover{border-color:#1A1E2B}
.carx-cap{font-size:.95rem;color:var(--muted);margin:.7rem 0 .9rem;min-height:1.5em}
.carx-thumbs{display:flex;gap:.6rem;overflow-x:auto;padding-bottom:.4rem;scrollbar-width:thin}
.carx-thumbs button{flex:0 0 7.6rem;border:2px solid transparent;border-radius:3px;background:#fff;padding:0;overflow:hidden;text-align:left}
.carx-thumbs img{display:block;width:100%;aspect-ratio:16/10;object-fit:cover}
.carx-thumbs span{display:block;font-size:.8rem;font-weight:600;padding:.3rem .45rem;color:#1A1E2B;border-top:1px solid #E3E6EC}
.carx-thumbs button[aria-selected="true"]{border-color:var(--cold)}

/* Compare slider */
.compare{position:relative;background:#fff;--pos:50%;user-select:none;touch-action:pan-y}
.compare img{display:block;width:100%;height:auto;max-height:72vh;object-fit:contain;pointer-events:none}
.compare img.top{position:absolute;inset:0;width:100%;height:100%;clip-path:inset(0 0 0 var(--pos))}
.compare .divider{position:absolute;top:0;bottom:0;left:var(--pos);width:2px;background:#1A1E2B;transform:translateX(-1px);pointer-events:none}
.compare .divider span{position:absolute;top:50%;left:50%;width:2.4rem;height:2.4rem;border-radius:50%;background:#1A1E2B;transform:translate(-50%,-50%);box-shadow:0 0 0 3px #fff}
.compare .divider span::before{content:"\2039\00a0\203A";color:#fff;position:absolute;inset:0;display:grid;place-items:center;font-size:1.1rem;font-weight:700}
.compare input{position:absolute;inset:0;width:100%;height:100%;opacity:0;cursor:ew-resize;margin:0}
.compare input:focus-visible + *,.compare:focus-within .divider span{box-shadow:0 0 0 3px #fff,0 0 0 6px var(--cold)}
.compare .tag{position:absolute;top:.8rem;background:rgba(26,30,43,.85);color:#fff;font-size:.82rem;font-weight:600;padding:.25rem .6rem;border-radius:2px;pointer-events:none}
.compare .tag.l{left:.8rem}.compare .tag.r{right:.8rem}

/* Scrubber */
.scrub{padding:1rem 1.3rem .4rem;border-top:1px solid var(--rule)}
.scrub input{width:100%;accent-color:var(--cold)}
.ticks{display:flex;justify-content:space-between;font-size:.82rem;color:var(--muted);margin-top:.2rem}
.ticks span{flex:1;text-align:center}.ticks span:first-child{text-align:left}.ticks span:last-child{text-align:right}
.play{border:1px solid var(--ink);background:transparent;color:var(--ink);padding:.4rem .9rem;border-radius:2px;font:600 .9rem var(--ff)}
.play[aria-pressed="true"]{background:var(--ink);color:var(--paper)}
#pt-img{transition:opacity .2s}

/* Lightbox nav */
.lb-nav{position:absolute;top:50%;transform:translateY(-50%);z-index:4;width:2.8rem;height:2.8rem;border-radius:50%;border:0;background:rgba(255,255,255,.9);color:#1A1E2B;font-size:1.7rem;line-height:1;padding:0 0 .2rem}
.lb-nav.prev{left:.7rem}.lb-nav.next{right:.7rem}
.lb-count{color:#8F96A8;font-size:.85rem;padding:0 1.2rem .9rem;margin:-.4rem 0 0}

/* Reveal */
.reveal{opacity:0;transform:translateY(14px);transition:opacity .6s ease,transform .6s ease}
.reveal.in{opacity:1;transform:none}
@media (prefers-reduced-motion:reduce){.reveal{opacity:1;transform:none;transition:none}.spot::after{animation:none}}

.credit{font-size:.85rem;color:var(--muted);margin:2rem 0 0;padding-top:1rem;border-top:1px dashed var(--rule);max-width:80ch}

/* Progress + theme */
.progress-scale{position:absolute;left:0;right:0;bottom:-1px;height:3px;pointer-events:none}
.progress-scale span{display:block;height:100%;width:100%;background:var(--scale-h);clip-path:inset(0 100% 0 0)}
.site-nav{position:sticky}
.theme-btn{margin-left:.6rem;width:2.2rem;height:2.2rem;border-radius:50%;border:1px solid var(--rule);background:transparent;color:var(--ink);display:inline-grid;place-items:center;padding:0;font-size:1rem}
.theme-btn:hover{border-color:var(--cold);color:var(--cold)}
.theme-btn .moon{display:none}
.is-dark .theme-btn .sun{display:none}.is-dark .theme-btn .moon{display:inline}
.site-nav .nav-link{position:relative}
.site-nav .nav-link.active::after{content:"";position:absolute;left:.9rem;right:.9rem;bottom:.1rem;height:2px;background:var(--cold)}
.legend a.active{font-weight:750}
.legend li.on::before{width:.9rem;left:-1.1rem;height:2px}

/* Hero: flow pulses travelling along the simulated streamlines.
   The canvas is positioned by script to match the image's crop, so it lines up in every browser. */
.hero{position:relative}
.hero-flow{position:absolute;left:0;top:0;z-index:1;pointer-events:none;mix-blend-mode:screen;opacity:0;transition:opacity 1.2s}
.hero-flow.on{opacity:1}
@media (max-width:767.98px){.hero-grid .hero-img{grid-area:1/1}.hero-grid .hero-copy{grid-area:2/1}}

/* Project cards */
.pcards{display:grid;grid-template-columns:1fr;gap:1rem;margin:1.8rem 0 1rem}
@media (min-width:768px){.pcards{grid-template-columns:repeat(3,minmax(0,1fr))}}
.pcard{display:block;text-decoration:none;color:var(--ink);background:var(--surface);border:1px solid var(--rule);border-radius:4px;overflow:hidden;transition:transform .25s,box-shadow .25s,border-color .25s}
.pcard:hover{color:var(--ink);transform:translateY(-4px);box-shadow:0 14px 30px -18px rgba(20,24,40,.45);border-color:var(--cold)}
.pcard-img{position:relative;aspect-ratio:16/10;background:#5E5A58;overflow:hidden}
.pcard-img.light{background:#fff}
.pcard-img img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;transition:opacity .45s,transform .6s}
.pcard-img.light img{object-fit:contain}
.pcard-img img.alt{opacity:0}
.pcard:hover .pcard-img img.alt,.pcard:focus-visible .pcard-img img.alt{opacity:1}
.pcard:hover .pcard-img img{transform:scale(1.03)}
.pcard-body{padding:1rem 1.1rem 1.1rem}
.pcard-n{font-weight:800;font-variation-settings:"wdth" 125;color:var(--cold);font-size:.9rem}
.pcard h3{font-size:1.2rem;font-weight:700;font-variation-settings:"wdth" 110;margin:.2rem 0 .25rem}
.pcard p{margin:0;color:var(--muted);font-size:.92rem}

/* Lightbox zoom */
.lb-zoom{overflow:hidden;position:relative;cursor:zoom-in;touch-action:none;background:#20232E}
.lb-zoom.zoomed{cursor:grab}.lb-zoom.dragging{cursor:grabbing}
.lb-zoom img{transform-origin:0 0;will-change:transform;user-select:none}
.lb-tools{position:absolute;left:.8rem;top:.8rem;z-index:5;display:flex;border-radius:3px;overflow:hidden;background:rgba(255,255,255,.92)}
.lb-tools button{border:0;background:none;color:#1A1E2B;font:600 .95rem var(--ff);padding:.35rem .7rem;min-width:2.4rem}
.lb-tools button+button{border-left:1px solid #D5DAE2}
.lb-tools button:hover{background:#E8ECF3}

/* Back to top */
.to-top{position:fixed;right:1.2rem;bottom:calc(1.2rem + env(safe-area-inset-bottom,0px));z-index:1020;width:2.8rem;height:2.8rem;border-radius:50%;background:var(--ink);color:var(--paper);display:grid;place-items:center;text-decoration:none;font-size:1.2rem;opacity:0;transform:translateY(10px);pointer-events:none;transition:opacity .25s,transform .25s}
.to-top.show{opacity:1;transform:none;pointer-events:auto}
.to-top:hover{background:var(--cold);color:#fff}


/* Writing */
#writing{background:var(--surface);border-top:1px solid var(--rule);border-bottom:1px solid var(--rule)}
.coming-soon{margin:0;padding:1.6rem 0;font-size:1.4rem;font-weight:600;color:var(--ink)}
.post{display:block;width:100%;text-align:left;background:none;border:0;border-top:1px solid var(--rule);padding:1.5rem 0;color:var(--ink)}
.post:last-child{border-bottom:1px solid var(--rule)}
.post h3{font-size:clamp(1.25rem,2.4vw,1.6rem);font-weight:680;font-variation-settings:"wdth" 108;margin-bottom:.35rem;letter-spacing:-.01em}
.post p{color:var(--muted);margin:0;max-width:64ch}
.post .read{color:var(--cold);font-weight:600;font-size:.95rem;margin-top:.6rem;display:inline-block}
.post:hover h3{color:var(--cold)}
.modal-content{background:var(--surface);color:var(--ink);border:1px solid var(--rule);border-radius:4px}
.modal-header,.modal-footer{border-color:var(--rule)}
.modal-title{font-weight:720;font-variation-settings:"wdth" 110}
.article p{max-width:64ch}
.article h4{font-size:1.1rem;font-weight:650;margin-top:1.4rem}
.btn-close{filter:var(--closefilter,none)}
:root[data-theme="dark"]{--closefilter:invert(1)}
@media (prefers-color-scheme:dark){:root:not([data-theme="light"]){--closefilter:invert(1)}}
#lightbox .modal-content{background:#20232E;border:0}
#lightbox .modal-body{padding:0}
#lightbox img{width:100%;display:block}
#lightbox .cap{color:#C9CEDB;padding:.9rem 1.2rem;font-size:.95rem;margin:0}
#lightbox .btn-close{position:absolute;right:.7rem;top:.7rem;z-index:5;background-color:#fff;opacity:.9;padding:.6rem;border-radius:50%}

/* Contact */
.contact-links{display:flex;flex-wrap:wrap;gap:.8rem;margin-top:1.4rem}
.contact-links a{border:1px solid var(--ink);color:var(--ink);text-decoration:none;padding:.7rem 1.2rem;border-radius:2px;font-weight:600}
.contact-links a.primary{background:var(--ink);color:var(--paper)}
.contact-links a:hover{border-color:var(--cold);color:var(--cold)}
.contact-links a.primary:hover{background:var(--cold);color:#fff}
footer{padding:0 0 2.5rem;color:var(--muted);font-size:.9rem}
footer .scale{height:4px;background:var(--scale-h);margin-bottom:1.6rem}