:root{
  --bg:#ffffff;
  --fg:#333333;
  --muted:#666666;
  --line:#ececec;
  --accent:#b4472c;
}
*{box-sizing:border-box;margin:0;padding:0}
html{-webkit-text-size-adjust:100%}
body{
  background:var(--bg);color:var(--fg);
  font:400 16px/1.6 Inter,-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,sans-serif;
  -webkit-font-smoothing:antialiased;
}
a{color:var(--accent);font-weight:500;text-decoration:underline;text-underline-offset:3px;text-decoration-thickness:1px}
a:hover{text-decoration-thickness:2px}

.page{min-height:100vh;min-height:100svh;display:flex;flex-direction:column;padding:41px 41px 20px;max-width:1400px;margin:0 auto}

/* landing */
.split{flex:1;display:grid;grid-template-columns:minmax(0,390px) 1fr;gap:72px;align-items:center;max-width:1200px;width:100%}
.text p{margin-bottom:8px}
.text ul{list-style:none;margin:0 0 22px}
.text .before{margin-top:22px}
.text li{padding-left:16px;position:relative;margin-bottom:2px}
.text li::before{content:"·";position:absolute;left:3px;color:var(--muted)}

.graphic{display:flex;flex-direction:column;align-items:center;gap:10px;text-decoration:none;justify-self:center;width:100%;max-width:640px}
#leds{width:100%;aspect-ratio:4/3;display:block;cursor:pointer}
.caption{font-size:13px;font-weight:400;color:var(--muted);opacity:0;transition:opacity .3s}
.graphic:hover .caption,.graphic:focus-visible .caption{opacity:1}

/* footer */
footer{display:flex;justify-content:space-between;align-items:flex-end;gap:16px;font-size:14px;color:var(--muted);padding-top:32px}
footer nav{display:flex;gap:20px;align-items:center}
footer a,.dd summary{color:var(--muted);text-decoration:none;font-weight:400}
footer a:hover,.dd summary:hover,.dd[open] summary{color:var(--fg)}
.dd{position:relative}
.dd summary{cursor:pointer;list-style:none}
.dd summary::-webkit-details-marker{display:none}
.dd summary::after{content:" ▴";font-size:10px}
.menu{position:absolute;bottom:calc(100% + 10px);left:-12px;background:var(--bg);border:1px solid var(--line);border-radius:8px;padding:6px;min-width:130px;box-shadow:0 6px 20px rgba(0,0,0,.06);display:flex;flex-direction:column}
.menu a,.menu .soon{padding:6px 10px;border-radius:6px}
.menu a{color:var(--fg)}
.menu a:hover{background:#f6f6f6}
.menu .soon{opacity:.6}

/* project pages */
.project{max-width:680px;width:100%;flex:1}
.back{font-size:14px;font-weight:400;color:var(--muted);text-decoration:none}
.back:hover{color:var(--fg)}
.project h1{font-size:16px;font-weight:500;margin:48px 0 12px}
.project > p{margin-bottom:10px}
.project h2{font-size:14px;font-weight:500;color:var(--muted);margin:48px 0 12px}
.grid{display:grid;gap:10px}
.grid.three{grid-template-columns:repeat(3,1fr)}
.grid.two{grid-template-columns:repeat(2,1fr)}
.grid.four{grid-template-columns:repeat(4,1fr)}
.project h2.vids-h{margin-top:28px}
/* videos: demo 1 is the main one, sized to fit the first screen; demo 2 below it */
.project{--media-w:min(960px, calc(100vw - 82px), calc((100svh - 290px) * 16 / 9))}
.videos{display:flex;flex-direction:column;gap:10px;width:var(--media-w)}
.project .grid{width:var(--media-w)}
.vid{position:relative;aspect-ratio:9/16;border-radius:6px;overflow:hidden;background:#111}
.vid.wide{aspect-ratio:16/9}
.vid iframe{position:absolute;inset:0;width:100%;height:100%;border:0}
figure{margin:0}
.ph{display:block;aspect-ratio:4/5;border-radius:6px;overflow:hidden;background:#f3f3f3}
.ph img{width:100%;height:100%;object-fit:cover;display:block}
figcaption{font-size:12px;color:var(--muted);margin-top:6px}
/* build row: breadboard shown as a full landscape, pcb as a narrower portrait, same height, no cropping */
.grid.two.build{grid-template-columns:4fr 2.25fr}
.build figure:first-child .ph{aspect-ratio:4/3}
.build figure:last-child .ph{aspect-ratio:3/4}

@media (max-width:760px){
  .page{padding:24px 16px}
  .split{grid-template-columns:1fr;gap:32px;align-items:start;padding-top:24px}
  .graphic{max-width:100%;order:-1;justify-self:stretch}
  .caption{opacity:1}
  .grid.three{grid-template-columns:1fr;max-width:320px}
  .videos,.project .grid{width:100%}
  .grid.four{grid-template-columns:repeat(2,1fr)}
  footer{flex-wrap:wrap}
}

/* native videos */
.vid video{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;display:block;cursor:pointer}
.sound{position:absolute;right:10px;bottom:10px;z-index:2;border:0;border-radius:999px;padding:4px 10px;font:400 12px/1.4 Inter,sans-serif;color:#fff;background:rgba(0,0,0,.45);-webkit-backdrop-filter:blur(6px);backdrop-filter:blur(6px);cursor:pointer;transition:background .2s}
.sound:hover{background:rgba(0,0,0,.65)}
.sound.on{background:rgba(180,71,44,.85)}
.ctrls{position:absolute;right:10px;bottom:10px;z-index:2;display:flex;gap:6px}
.ctrls .sound,.ctrls .pp{position:static}
.pp{border:0;border-radius:999px;padding:4px 10px;min-width:34px;font:400 12px/1.4 Inter,sans-serif;color:#fff;background:rgba(0,0,0,.45);-webkit-backdrop-filter:blur(6px);backdrop-filter:blur(6px);cursor:pointer;transition:background .2s}
.pp:hover{background:rgba(0,0,0,.65)}

/* photo viewer */
.ph{cursor:zoom-in}
.ph img{transition:transform .4s ease}
.ph:hover img{transform:scale(1.03)}
.lightbox{position:fixed;inset:0;z-index:50;background:rgba(255,255,255,.97);display:flex;align-items:center;justify-content:center;opacity:0;transition:opacity .2s ease}
.lightbox.open{opacity:1}
.lightbox[hidden]{display:none}
.lightbox figure{margin:0;display:flex;flex-direction:column;align-items:center;gap:10px;max-width:calc(100vw - 140px)}
.lightbox img{max-width:100%;max-height:calc(100svh - 110px);border-radius:6px;display:block}
.lightbox figcaption{color:var(--muted);font-size:13px}
.lightbox button{position:absolute;background:none;border:0;color:var(--muted);font:300 40px/1 Inter,sans-serif;cursor:pointer;padding:12px 16px;transition:color .2s}
.lightbox button:hover{color:var(--fg)}
.lb-close{top:16px;right:18px;font-size:34px}
.lb-prev{left:12px;top:50%;transform:translateY(-50%)}
.lb-next{right:12px;top:50%;transform:translateY(-50%)}
@media (max-width:760px){
  .lightbox figure{max-width:100vw}
  .lb-prev,.lb-next{top:auto;bottom:18px;transform:none}
}