/* Datasheet design system. Hero rules are ported verbatim from hero-reference.html; site rules follow. */
/* Layout: hero text + focus switch; a layer chain (Perceive → Command → Move); then one system board: Edge AI panel | arm panel on top, firmware panel full width below. */
:root{
  --bg:#f4f5f2; --panel:#fbfcfa; --fg:#1a1e1c; --muted:#5c6560; --line:#d8ddd8; --grid:#e7eae6;
  --accent:#2c6a62; --accent-soft:#e2edea; --warm:#a87622; --warm-soft:#f3ead9; --slate:#6b7a86;
  --danger:#b0443a; --danger-soft:#f6e3df;
  /* scope screens are instruments: dark in both themes by choice */
  --scr:#0f1312; --scr-grid:#1f2624; --scr-axis:#33403c; --scr-text:#8e9a95; --ch1:#e0b45a; --cnt:#7fc2b6; --uev:#9aa7c4;
  --f-sans:"IBM Plex Sans",system-ui,-apple-system,"Segoe UI",sans-serif;
  --f-mono:"IBM Plex Mono",ui-monospace,SFMono-Regular,Menlo,monospace;
}
@media (prefers-color-scheme:dark){:root:not([data-theme="light"]){
  --bg:#111413; --panel:#161a18; --fg:#e1e5e2; --muted:#939d97; --line:#29302c; --grid:#1c211f;
  --accent:#84c0b5; --accent-soft:#1c2a27; --warm:#d6a650; --warm-soft:#2a2418; --slate:#9aaab6;
  --danger:#e3806f; --danger-soft:#2e1c19; --scr:#0b0e0d; color-scheme:dark}}
:root[data-theme="dark"]{
  --bg:#111413; --panel:#161a18; --fg:#e1e5e2; --muted:#939d97; --line:#29302c; --grid:#1c211f;
  --accent:#84c0b5; --accent-soft:#1c2a27; --warm:#d6a650; --warm-soft:#2a2418; --slate:#9aaab6;
  --danger:#e3806f; --danger-soft:#2e1c19; --scr:#0b0e0d; color-scheme:dark}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{background:var(--bg);color:var(--fg);font-family:var(--f-sans);font-size:16px;line-height:1.6;-webkit-font-smoothing:antialiased}
.wrap{max-width:1160px;margin:0 auto;padding-inline:20px;padding-block:18px 56px}
.btn{font:500 12px var(--f-mono);background:none;border:1px solid var(--line);color:var(--fg);border-radius:6px;padding:5px 10px;cursor:pointer;text-decoration:none;display:inline-block}
.btn:hover{border-color:var(--fg)}
.btn.primary{background:var(--fg);color:var(--bg);border-color:var(--fg)}
:focus-visible{outline:2px solid var(--accent);outline-offset:3px}
.label{font-family:var(--f-mono);font-size:12px;letter-spacing:.08em;text-transform:uppercase;color:var(--muted)}

/* hero text */
.intro{display:grid;grid-template-columns:minmax(0,1.3fr) minmax(0,1fr);gap:20px 48px;align-items:end;padding-block:40px 22px}
@media (max-width:900px){.intro{grid-template-columns:1fr;padding-block:28px 16px}}
h1{font-size:clamp(30px,4vw,46px);line-height:1.08;letter-spacing:-.02em;margin:10px 0 12px;font-weight:600;text-wrap:balance}
.sum{color:var(--muted);max-width:56ch;margin:0}
.side{display:grid;gap:14px}
.ctas{display:flex;flex-wrap:wrap;gap:8px}
.ctas{gap:10px}
.ctas .btn{font:500 15px var(--f-sans);padding:11px 16px;border-radius:8px}
.ctas #resume{background:var(--accent);border-color:var(--accent);color:var(--bg);font-weight:600}
.ctas #resume:hover{filter:brightness(1.08)}
.ctas .cta-contact{border-color:var(--accent);color:var(--accent);font-weight:600}
.ctas .cta-contact:hover{background:var(--accent-soft)}
@media (max-width:420px){.ctas .btn{font-size:14.5px;padding:11px 16px}}
/* sub-text: the live line plus invisible copies of every focus's line share one cell, so its height never changes */
.subwrap{display:grid}
.subwrap>.sum{grid-area:1/1}
.subwrap>.ghost{visibility:hidden}
/* the Resume slot keeps its width when its PDF is missing, so switching focus never moves the buttons */
.ctas #resume{text-align:center}
.ctas #resume[hidden]{display:inline-block!important;visibility:hidden}
.fsw{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));border:1px solid var(--line);border-radius:8px;padding:3px;gap:3px;background:var(--panel);max-width:100%}
.fsw button{font:500 13.5px var(--f-sans);border:0;background:none;color:var(--muted);padding:7px 12px;border-radius:6px;cursor:pointer;white-space:nowrap}
.fsw button[aria-pressed="true"]{background:var(--fg);color:var(--bg)}
.fsw button:not([aria-pressed="true"]):hover{color:var(--fg)}
@media (max-width:440px){.fsw{grid-template-columns:repeat(2,1fr)}}

/* layer chain */
.chain{display:flex;align-items:center;gap:8px;margin-bottom:12px;overflow-x:auto;padding-block:2px}
.layer{font:500 12.5px var(--f-mono);display:inline-flex;align-items:center;gap:6px;padding:5px 12px;border-radius:999px;border:1px solid var(--line);color:var(--muted);background:var(--panel);cursor:pointer;transition:background .35s,color .35s,border-color .35s;white-space:nowrap}
.layer small{font-size:11px;opacity:.75}
.layer::before{content:"";width:7px;height:7px;border-radius:50%;background:var(--line);transition:background .15s,box-shadow .15s}
.layer.on{background:var(--accent);border-color:var(--accent);color:var(--bg)}
.layer.on::before{background:var(--bg);box-shadow:0 0 0 2px color-mix(in srgb,var(--bg) 35%,transparent)}
.layer.flash{animation:cmdflash .45s linear}
.layer.flash.err{animation-name:cmderr}
@keyframes cmdflash{0%,30%,62%{background:var(--warm);border-color:var(--warm);color:var(--bg)}15%,46%,100%{background:var(--panel);border-color:var(--warm);color:var(--warm)}}
@keyframes cmderr{0%,30%,62%{background:var(--danger);border-color:var(--danger);color:var(--bg)}15%,46%,100%{background:var(--panel);border-color:var(--danger);color:var(--danger)}}
.layer.focus:not(.on){border-color:var(--accent);color:var(--accent)}
.layer:hover{border-color:var(--fg)}
.arrow{flex:1;min-width:16px;height:1px;background:var(--line);position:relative}
.arrow::after{content:"";position:absolute;right:0;top:-3px;border:3.5px solid transparent;border-left:6px solid var(--line);border-right:0}
@media (max-width:520px){.layer small{display:none}}

/* board */
/* one-line visitor hint under the layer chain (fixed text, so focus switches never move it) */
.hint-line{margin:0 0 14px;font-size:14px;line-height:1.55;color:var(--muted);max-width:110ch}
.board{display:grid;grid-template-columns:minmax(0,360px) minmax(0,1fr);grid-template-areas:"edge arm" "fw fw";gap:18px}
@media (max-width:900px){.board{grid-template-columns:1fr;grid-template-areas:"arm" "edge" "fw"}}
.panel{background:var(--panel);border:1px solid var(--line);border-radius:10px;overflow:hidden;min-width:0;transition:border-color .3s,box-shadow .3s}
.panel.focused{border-color:var(--accent);box-shadow:0 0 0 3px var(--accent-soft)}
.phd{min-height:42px;display:flex;justify-content:space-between;align-items:center;gap:10px;padding:0 12px;border-bottom:1px solid var(--line);font-family:var(--f-mono);font-size:12px;color:var(--muted);white-space:nowrap;overflow:hidden}
.phd b{color:var(--fg);font-weight:500}
.phd .tag{color:var(--accent)}
.disp{position:relative}
.strip{border-top:1px solid var(--line);padding:9px 12px 10px;font-family:var(--f-mono);font-size:12px}
#p-edge{grid-area:edge} #p-arm{grid-area:arm} #p-fw{grid-area:fw}
#p-edge .disp{height:380px}
#p-arm .disp{height:452px}
@media (max-width:900px){#p-arm .disp{height:340px}#p-edge .disp{height:340px}}

/* focus gating: panels outside the chosen focus are view only */
.panel.locked .disp,.panel.locked .ctl,.panel.locked .strip{cursor:not-allowed}
.panel.locked .pad,.panel.locked .net,.panel.locked .dual,.panel.locked .samples,.panel.locked .erow button,.panel.locked input,.panel.locked .seg{pointer-events:none}
.panel.locked .ctl,.panel.locked .strip .erow:first-child button,.panel.locked .samples,.panel.locked .seg{opacity:.55}
/* arm */
.hdr-r{display:flex;align-items:center;gap:10px}
.retry{font-size:11.5px;padding:3px 9px}
.retry.attn{border-color:var(--danger);color:var(--danger);animation:attn 1.2s ease-in-out infinite}
@keyframes attn{50%{box-shadow:0 0 0 3px var(--danger-soft)}}
@media (max-width:520px){.hdr-r #hint{display:none}}
#stage{cursor:crosshair;touch-action:pan-y}
#stage.over-block,#stage.over-cam{cursor:pointer}
#stage canvas{display:block;width:100%;height:100%}
.warn{position:absolute;left:50%;top:44%;transform:translate(-50%,-50%) scale(.96);display:grid;gap:2px;justify-items:center;text-align:center;background:var(--danger-soft);border:1px solid var(--danger);color:var(--danger);border-radius:6px;padding:7px 12px;font-family:var(--f-mono);font-size:11.5px;pointer-events:none;opacity:0;transition:opacity .15s,transform .15s;max-width:calc(100% - 24px)}
.warn.on{opacity:1;transform:translate(-50%,-50%) scale(1)}
.warn b{font-weight:500;letter-spacing:.06em;display:flex;align-items:center;gap:7px}
.warn b::before{content:"";width:7px;height:7px;border-radius:50%;background:var(--danger);animation:blink .7s steps(2) infinite}
.warn span{color:var(--fg);opacity:.85}
@keyframes blink{50%{opacity:0}}
@media (max-width:480px){.warn{font-size:10.5px;padding:6px 9px}}

/* edge ai */
.seg{display:inline-flex;border:1px solid var(--line);border-radius:6px;overflow:hidden;flex:none}
.seg button{font:500 11.5px var(--f-mono);border:0;background:none;color:var(--muted);padding:4px 9px;cursor:pointer}
.seg button[aria-pressed="true"]{background:var(--accent);color:var(--bg)}
.edge{display:grid;grid-template-rows:auto minmax(0,1fr);gap:10px;padding:12px;height:100%}
.etop{display:grid;grid-template-columns:150px minmax(0,1fr);gap:12px;align-items:start}
@media (max-width:420px){.etop{grid-template-columns:120px minmax(0,1fr)}}
.pad{position:relative;width:100%;aspect-ratio:1;border:1px solid var(--line);border-radius:8px;background:var(--bg);touch-action:none;cursor:crosshair;overflow:hidden}
.pad canvas{display:block;width:100%;height:100%}
.pad .ph{position:absolute;inset:0;display:grid;place-items:center;font-family:var(--f-mono);font-size:11.5px;color:var(--muted);pointer-events:none;transition:opacity .2s;text-align:center}
.digit{font-size:54px;line-height:1;font-weight:600;color:var(--accent);font-variant-numeric:tabular-nums}
.digit.wait{color:var(--line)}
.conf{font-family:var(--f-mono);font-size:11.5px;color:var(--muted)}
.cmdout{font-family:var(--f-mono);font-size:12px;color:var(--warm);margin-top:6px;min-height:1.4em}
.net{position:relative;min-height:0;min-width:0}
.net canvas{display:block;width:100%}
.tip{position:absolute;pointer-events:none;background:var(--fg);color:var(--bg);font-family:var(--f-mono);font-size:11px;line-height:1.5;padding:8px 9px;border-radius:6px;transform:translate(-50%,calc(-100% - 12px));opacity:0;transition:opacity .12s;white-space:nowrap;z-index:2;display:grid;gap:6px;justify-items:start}
.tip.on{opacity:1}
.tip canvas{width:72px;height:72px;image-rendering:pixelated;border-radius:3px}
.erow{display:flex;flex-wrap:wrap;gap:6px 12px;align-items:center}
.erow+.erow{margin-top:8px}
.counters{display:flex;flex-wrap:wrap;gap:4px 12px;color:var(--muted);font-variant-numeric:tabular-nums}
.counters b,.erow b{color:var(--fg);font-weight:500}
.samples{display:flex;flex-wrap:wrap;gap:4px}
.samples button{font:500 11.5px var(--f-mono);width:24px;height:24px;border:1px solid var(--line);background:var(--bg);color:var(--muted);border-radius:5px;cursor:pointer;padding:0}
.samples button.on{border-color:var(--accent);color:var(--accent);font-weight:600}
.samples button:hover{border-color:var(--fg);color:var(--fg)}
.muted{color:var(--muted)}

/* firmware */
.fwgrid{display:grid;grid-template-columns:minmax(0,1.35fr) minmax(0,1fr);gap:18px;padding:12px}
@media (max-width:760px){.fwgrid{grid-template-columns:1fr}}
.tx{display:flex;flex-wrap:wrap;gap:4px 10px;align-items:baseline;padding-bottom:7px;margin-bottom:8px;border-bottom:1px dashed var(--line);font-family:var(--f-mono);font-size:12px}
.tx .k{color:var(--muted)}
.tx b{font-weight:500;color:var(--warm);background:var(--warm-soft);padding:0 6px;border-radius:3px}
.tx b.err{color:var(--danger);background:var(--danger-soft)}
.tx .note{color:var(--muted);margin-left:auto;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;max-width:62%}
@media (max-width:480px){.tx .note{max-width:100%;margin-left:0}}
.fscope{height:156px;border-radius:8px;overflow:hidden;background:var(--scr)}
.fscope canvas{display:block;width:100%;height:100%}
.ctl{display:grid;gap:12px;align-content:start;font-family:var(--f-mono);font-size:12px}
.ctl .h{display:flex;justify-content:space-between;gap:8px;margin-bottom:4px}
.ctl .h span{color:var(--muted)}
.ctl .h b{font-weight:500;font-variant-numeric:tabular-nums}
input[type=range]{width:100%;accent-color:var(--accent);margin:0}
.dual{position:relative;height:22px;touch-action:none;cursor:pointer}
.dual .trk{position:absolute;left:0;right:0;top:9px;height:4px;border-radius:2px;background:var(--grid)}
.dual .sel{position:absolute;top:9px;height:4px;border-radius:2px;background:var(--accent)}
.dual .th{position:absolute;top:4px;width:14px;height:14px;margin-left:-7px;border-radius:50%;background:var(--accent);border:2px solid var(--panel);box-shadow:0 0 0 1px var(--accent);padding:0;cursor:grab}
.code{background:var(--bg);border:1px solid var(--line);border-radius:6px;padding:8px 10px;font-size:11.5px;line-height:1.7;overflow-x:auto;white-space:pre}
.code .c{color:var(--muted)}
.code .n{color:var(--warm);font-weight:500}

/* ================= site (beyond the hero) ================= */
[hidden]{display:none!important}
html{scrollbar-gutter:stable;scroll-padding-top:64px}
body{margin:0;overflow-x:hidden}
img,video{max-width:100%;display:block}
a{color:inherit}
h1,h2,h3{font-weight:600}
.skip{position:absolute;left:-9999px;top:8px;z-index:60;background:var(--fg);color:var(--bg);padding:6px 10px;border-radius:6px;font:500 13px var(--f-sans)}
.skip:focus{left:12px}

/* top bar */
.top{position:sticky;top:0;z-index:30;background:var(--bg);border-bottom:1px solid var(--line)}
.top-in{max-width:1160px;margin:0 auto;padding-inline:20px;height:52px;display:flex;align-items:center;gap:20px}
.mark{font:600 13px var(--f-mono);letter-spacing:.06em;color:var(--fg);text-decoration:none;border:1px solid var(--fg);border-radius:4px;padding:2px 6px;line-height:1.3}
.mark:hover{color:var(--accent);border-color:var(--accent)}
.nav{display:flex;gap:18px;margin-left:auto;font-family:var(--f-mono);font-size:12px;letter-spacing:.04em}
.nav a{color:var(--muted);text-decoration:none;padding-block:4px}
.nav a:hover{color:var(--fg)}
.tbtn{width:30px;height:30px;padding:0;display:inline-grid;place-items:center;flex:none}
.tbtn svg{width:14px;height:14px}
@media (max-width:480px){.top-in{gap:12px}.nav{gap:11px;font-size:11.5px;letter-spacing:0}}
@media (max-width:350px){.nav{gap:8px;font-size:11px}}

/* section scaffolding */
.sec{margin-top:64px;padding-top:22px;border-top:1px solid var(--line)}
.shd{display:flex;flex-wrap:wrap;justify-content:space-between;align-items:baseline;gap:6px 18px;margin-bottom:22px}
.shd h2{font-size:clamp(22px,2.6vw,28px);line-height:1.15;letter-spacing:-.01em;margin:0}
.shd .label{white-space:nowrap}
h3.sub{font-family:var(--f-mono);font-size:12px;font-weight:500;letter-spacing:.08em;text-transform:uppercase;color:var(--muted);margin:0 0 12px}

/* rise-in: elements below the first screen start visible, slightly lowered and dimmed */
.js .rise{opacity:.35;transform:translateY(14px);transition:opacity .6s ease,transform .6s ease}
.js .rise.in{opacity:1;transform:none}

/* project cards */
.cards{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:18px}
@media (max-width:1023px){.cards{grid-template-columns:repeat(2,minmax(0,1fr))}}
@media (max-width:640px){.cards{grid-template-columns:minmax(0,1fr)}}
.card{position:relative;background:var(--panel);border:1px solid var(--line);border-radius:10px;overflow:hidden;display:flex;flex-direction:column;min-width:0}
.js .card.rise.in,.card{transition:opacity .6s ease,transform .25s ease,border-color .25s,box-shadow .25s}
.card:hover{border-color:var(--muted);transform:translateY(-3px);box-shadow:0 6px 18px -12px color-mix(in srgb,var(--fg) 40%,transparent)}
.card:focus-within{border-color:var(--accent)}
.media{aspect-ratio:16/9;background:var(--grid);border-bottom:1px solid var(--line);overflow:hidden;position:relative}
.media img{width:100%;height:100%;object-fit:cover}
.cbody{padding:14px 14px 16px;display:flex;flex-direction:column;gap:8px;flex:1}
.cbody h3{font-size:17px;line-height:1.3;margin:0;font-weight:600;letter-spacing:-.005em}
.cbtn{all:unset;cursor:pointer}
.cbtn::after{content:"";position:absolute;inset:0;z-index:1}
.cbtn:focus-visible{outline:none}
.card:has(.cbtn:focus-visible){outline:2px solid var(--accent);outline-offset:3px}
.blurb{margin:0;color:var(--muted);font-size:14.5px;line-height:1.55}
.more-hint{margin-top:auto;padding-top:4px;font:500 11.5px var(--f-mono);color:var(--accent)}

/* datasheet characteristics table */
.spec{width:100%;border-collapse:collapse;font-size:12.5px;margin-top:4px}
.spec caption{text-align:left;font:500 10.5px var(--f-mono);letter-spacing:.08em;text-transform:uppercase;color:var(--muted);padding-bottom:5px}
.spec th{font:500 10.5px var(--f-mono);letter-spacing:.06em;text-transform:uppercase;color:var(--muted);text-align:left;padding:4px 6px;border-bottom:1px solid var(--fg);background:var(--bg)}
.spec td{padding:5px 6px;border-bottom:1px solid var(--line);vertical-align:top}
.spec td:nth-child(2){font-family:var(--f-mono);font-weight:500;font-variant-numeric:tabular-nums;color:var(--fg)}
.spec td:nth-child(3){font-family:var(--f-mono);color:var(--muted);font-size:11.5px}
.spec th:nth-child(1){width:44%}
.spec th:nth-child(3){width:22%}

/* graph-paper placeholder for images that are still to come */
.ph-img{position:absolute;inset:0;display:grid;place-items:center;background:var(--panel)}
.ph-img svg{position:absolute;inset:0;width:100%;height:100%}
.ph-img .gm{stroke:var(--grid);stroke-width:1}
.ph-img .gM{stroke:var(--line);stroke-width:1}
.ph-img span{position:relative;font:500 13px var(--f-mono);color:var(--muted);background:var(--panel);border:1px solid var(--line);border-radius:4px;padding:6px 10px;max-width:80%;text-align:center;line-height:1.45}

/* all projects: filters + datasheet index */
.chips{display:flex;flex-wrap:wrap;gap:6px;margin-bottom:16px}
.chip{font:500 12px var(--f-mono);border:1px solid var(--line);background:var(--panel);color:var(--muted);border-radius:999px;padding:4px 12px;cursor:pointer}
.chip:hover{color:var(--fg);border-color:var(--fg)}
.chip[aria-pressed="true"]{background:var(--fg);border-color:var(--fg);color:var(--bg)}
.idx{border-top:1px solid var(--fg)}
.row{position:relative;display:grid;grid-template-columns:132px minmax(0,1fr) minmax(0,.9fr) 18px;gap:16px;align-items:center;padding:12px 4px;border-bottom:1px solid var(--line);transition:background .2s}
.row:hover{background:var(--panel)}
.row .thumb{aspect-ratio:16/9;border:1px solid var(--line);border-radius:5px;overflow:hidden;position:relative;background:var(--grid)}
.row .thumb img{width:100%;height:100%;object-fit:cover}
.row .thumb .ph-img span{font-size:10px;padding:2px 5px;border:0;background:none}
.row h3{font-size:15.5px;margin:2px 0 3px;line-height:1.3}
.row .tags{display:flex;flex-wrap:wrap;gap:4px 10px;font:500 11px var(--f-mono);color:var(--muted);text-transform:uppercase;letter-spacing:.06em}
.row .key{font-family:var(--f-mono);font-size:12px;color:var(--muted)}
.row .key b{color:var(--fg);font-weight:500}
.row .go{font-family:var(--f-mono);color:var(--muted)}
.row:hover .go{color:var(--accent)}
.row:has(.cbtn:focus-visible){outline:2px solid var(--accent);outline-offset:-2px}
@media (max-width:760px){.row{grid-template-columns:96px minmax(0,1fr);gap:4px 14px;align-items:start}.row .key{grid-column:2}.row .go{display:none}}
.empty{color:var(--muted);font-size:14px;padding:14px 4px}

.lower{display:grid;grid-template-columns:minmax(0,1.2fr) minmax(0,1fr);gap:18px;margin-top:28px}
@media (max-width:860px){.lower{grid-template-columns:minmax(0,1fr)}}
.box{background:var(--panel);border:1px solid var(--line);border-radius:10px;padding:14px}
.nowb{display:grid;grid-template-columns:150px minmax(0,1fr);gap:14px}
@media (max-width:480px){.nowb{grid-template-columns:minmax(0,1fr)}}
.nowb .thumb{aspect-ratio:16/9;border:1px solid var(--line);border-radius:5px;overflow:hidden}
.nowb .thumb img{width:100%;height:100%;object-fit:cover}
.nowb h4,.arch h4{margin:0 0 4px;font-size:15.5px;line-height:1.3}
.nowb p,.arch p{margin:0 0 8px;color:var(--muted);font-size:14px;line-height:1.55}
.status{display:inline-flex;align-items:center;gap:6px;font:500 11px var(--f-mono);letter-spacing:.06em;text-transform:uppercase;color:var(--warm);border:1px dashed var(--warm);border-radius:999px;padding:1px 8px;margin-bottom:6px}
.status::before{content:"";width:6px;height:6px;border-radius:50%;background:var(--warm);animation:blink 1.4s steps(2) infinite}
.arch{display:grid;grid-template-columns:96px minmax(0,1fr);gap:12px;align-items:start}
.arch .thumb{aspect-ratio:16/9;border:1px solid var(--line);border-radius:5px;overflow:hidden}
.arch .thumb img{width:100%;height:100%;object-fit:cover}
.stack{display:flex;flex-wrap:wrap;gap:5px;margin:0;padding:0;list-style:none}
.stack li{font:500 11px var(--f-mono);border:1px solid var(--line);border-radius:4px;padding:1px 7px;color:var(--fg);background:var(--bg)}
.lnk{font:500 12px var(--f-mono);color:var(--accent);text-decoration:none;display:inline-block;margin-top:8px}
.lnk:hover{text-decoration:underline;text-underline-offset:3px}

/* project tile: centred over a dimmed, blurred page */
.dr-back{position:fixed;inset:0;z-index:40;background:color-mix(in srgb,#000 55%,transparent);-webkit-backdrop-filter:blur(3px);backdrop-filter:blur(3px);opacity:0;transition:opacity .22s}
.dr-back.open{opacity:1}
.drawer{position:fixed;z-index:41;left:50%;top:50%;width:min(760px,calc(100vw - 32px));max-height:min(88vh,920px);background:var(--panel);border:1px solid var(--line);border-radius:14px;display:flex;flex-direction:column;overflow:hidden;outline:none;
  box-shadow:0 30px 80px -30px rgba(0,0,0,.55);transform:translate(-50%,-47%) scale(.97);opacity:0;transition:transform .26s cubic-bezier(.2,.7,.2,1),opacity .2s}
.drawer.open{transform:translate(-50%,-50%);opacity:1}
.dr-hd{display:flex;justify-content:space-between;align-items:center;gap:10px;min-height:48px;padding:0 14px;border-bottom:1px solid var(--line);flex:none}
.dr-x{font-size:16px;line-height:1;padding:5px 10px}
.dr-body{flex:1 1 auto;min-height:0;overflow-y:auto;overscroll-behavior:contain;padding:16px 18px 32px;display:grid;grid-auto-rows:max-content;gap:18px;align-content:start}
.dr-body .media{border:1px solid var(--line);border-radius:8px}
.dr-body .media video,.dr-body .media img{width:100%;height:100%;object-fit:cover}
.dr-body h2{font-size:clamp(20px,2.4vw,24px);line-height:1.2;margin:4px 0 0;letter-spacing:-.01em}
.dr-body ul.bul{margin:0;padding-left:18px;display:grid;gap:8px;font-size:14.5px;line-height:1.55}
.dr-body ul.bul li::marker{color:var(--accent)}
.demo{display:block;font-size:14px;color:var(--accent);background:var(--accent-soft);border:1px solid color-mix(in srgb,var(--accent) 35%,transparent);border-radius:6px;padding:9px 12px;text-decoration:none}
.demo:hover{border-color:var(--accent)}
.demo b{font-family:var(--f-mono);font-size:11.5px;font-weight:500;letter-spacing:.06em;text-transform:uppercase;margin-right:6px}
.bars{display:grid;gap:7px}
.brow{display:grid;grid-template-columns:minmax(0,120px) minmax(0,1fr) 72px;gap:10px;align-items:center;font-size:12.5px}
.brow .bl{color:var(--muted)}
.brow .bt{height:12px;background:var(--grid);border-radius:2px;overflow:hidden}
.brow .bt i{display:block;height:100%;width:0;background:var(--muted);border-radius:2px;transition:width .8s cubic-bezier(.2,.7,.2,1)}
.brow.best .bt i{background:var(--accent)}
.brow b{font:500 12px var(--f-mono);text-align:right;font-variant-numeric:tabular-nums}
.brow.best b{color:var(--accent)}
.drawer.bars-on .brow .bt i{width:var(--w)}
.ghb{justify-self:start;font:500 13px var(--f-sans);padding:8px 14px}
@media (max-width:640px){
  .drawer{width:calc(100vw - 20px);max-height:90vh}
  .brow{grid-template-columns:minmax(0,96px) minmax(0,1fr) 64px}
}
}

/* experience timeline */
.tl{list-style:none;margin:0;padding:0;position:relative}
.tl::before{content:"";position:absolute;left:5px;top:6px;bottom:6px;width:1px;background:var(--line)}
.tl>li{position:relative;padding:0 0 26px 30px}
.tl>li::before{content:"";position:absolute;left:0;top:7px;width:11px;height:11px;border-radius:50%;background:var(--bg);border:2px solid var(--accent)}
.tl-h{display:flex;flex-wrap:wrap;justify-content:space-between;gap:2px 14px;align-items:baseline}
.tl-h h3{font-size:16.5px;margin:0;line-height:1.35}
.tl-h h3 span{color:var(--muted);font-weight:500}
.tl .when{font:500 12px var(--f-mono);color:var(--muted);white-space:nowrap}
.tl .where{font-size:13.5px;color:var(--muted);margin:1px 0 6px}
.tl ul{margin:0;padding-left:18px;display:grid;gap:6px;font-size:14.5px;line-height:1.55;max-width:80ch}
.tl ul li::marker{color:var(--accent)}
.tl .rest-b[hidden]{display:none}
.morebtn{margin-top:8px;font-size:11.5px;padding:3px 9px}
.lead-label{margin:6px 0 16px 30px}

/* about */
.about{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1fr);gap:28px 40px}
@media (max-width:860px){.about{grid-template-columns:minmax(0,1fr)}}
.about-text{font-size:17px;line-height:1.6;margin:0 0 26px;max-width:60ch}
.edu{display:grid;gap:14px}
.edu .box h4{margin:0;font-size:15.5px;line-height:1.35}
.edu .meta{display:flex;flex-wrap:wrap;gap:2px 14px;font:500 12px var(--f-mono);color:var(--muted);margin:4px 0 10px}
.awards{margin:0 0 26px;padding-left:18px;display:grid;gap:8px;font-size:14.5px;line-height:1.5}
.awards li::marker{color:var(--accent)}
.skills{width:100%;border-collapse:collapse;font-size:13.5px}
.skills th{text-align:left;vertical-align:top;font:500 11px var(--f-mono);letter-spacing:.06em;text-transform:uppercase;color:var(--muted);padding:8px 12px 8px 0;width:34%;border-bottom:1px solid var(--line)}
.skills td{padding:7px 0;border-bottom:1px solid var(--line);line-height:1.55}
.skills tr:first-child th,.skills tr:first-child td{border-top:1px solid var(--fg)}
@media (max-width:480px){.skills th{width:40%}}

/* contact + footer */
.ct{display:grid;grid-template-columns:minmax(0,1fr) 190px;gap:40px;align-items:end}
@media (max-width:860px){.ct{grid-template-columns:minmax(0,1fr)}.ct-art{display:none}}
.ct-h{font-size:clamp(30px,4vw,42px);line-height:1.1;letter-spacing:-.02em;margin:0 0 12px;font-weight:600}
.ct-intro{color:var(--muted);font-size:clamp(16px,1.8vw,19px);line-height:1.6;max-width:60ch;margin:0 0 24px}
.ct-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:14px}
@media (max-width:620px){.ct-grid{grid-template-columns:minmax(0,1fr)}}
.ct-card{position:relative;display:flex;align-items:center;gap:16px;padding:18px 20px;border:1px solid var(--line);border-radius:12px;background:var(--panel);color:var(--fg);text-decoration:none;min-width:0;transition:border-color .2s,transform .2s,box-shadow .2s}
a.ct-card:hover,.ct-card.ct-click:hover,.ct-card:focus-within{border-color:var(--accent);transform:translateY(-2px);box-shadow:0 8px 22px -16px var(--accent)}
.ct-card.ct-click{cursor:pointer}
.ct-card .ic{flex:none;width:28px;height:28px;color:var(--accent)}
.ct-card>span{min-width:0}
.ct-card b{display:block;font-weight:600;font-size:16px;line-height:1.3}
.ct-card b a{color:inherit;text-decoration:none}
.ct-card b a:hover{color:var(--accent)}
.ct-card small{display:block;color:var(--muted);font-size:14px;margin-top:3px;overflow-wrap:anywhere}
.ct-copy{margin-left:auto;flex:none;font:500 11.5px var(--f-mono);border:1px solid var(--line);background:none;color:var(--fg);border-radius:6px;padding:4px 9px;cursor:pointer}
.ct-copy:hover{border-color:var(--accent);color:var(--accent)}
.copied{position:absolute;right:20px;bottom:5px;font:500 11px var(--f-mono);color:var(--accent)}
.ct-res a{color:var(--muted);text-decoration:none;border-bottom:1px dotted var(--line)}
.ct-res a:hover{color:var(--fg)}
.ct-res a.cur{color:var(--accent);font-weight:600;border-bottom-color:var(--accent)}
.ct-art{width:100%;height:auto;color:var(--accent);margin-bottom:6px}
.foot{margin-top:64px;padding-block:22px 32px;border-top:1px solid var(--line);display:grid;gap:10px;color:var(--muted)}
.foot span:first-child{font-size:15px;color:var(--fg)}
.foot span:last-child{font:12px var(--f-mono)}
.foot a{color:var(--accent);text-decoration:underline;text-underline-offset:3px}
@media (prefers-reduced-motion:reduce){a.ct-card:hover,.ct-card.ct-click:hover,.ct-card:focus-within{transform:none}}
@media (max-width:420px){.ct-card{gap:12px;padding:15px 14px}.ct-card .ic{width:24px;height:24px}.ct-card small{font-size:13px;overflow-wrap:normal}.ct-copy{padding:4px 7px}}

/* 404 */
.nf{min-height:60vh;display:grid;align-content:center;gap:12px;padding-block:60px}
.nf h1{margin:0}
.nf p{color:var(--muted);margin:0 0 8px;max-width:50ch}

@media (prefers-reduced-motion:reduce){.js .rise{opacity:1;transform:none}.card:hover{transform:none}.brow .bt i{transition:none}.status::before{animation:none}}
/* panel headers wrap instead of clipping Retry or the Serial/64-lane switch (narrow screens, "view only" tag) */
.phd{flex-wrap:wrap;row-gap:6px;padding-block:6px}
@media (max-width:520px){.phd{padding-block:8px;white-space:normal}.phd>span:first-child{white-space:nowrap}}
@media (prefers-reduced-motion:reduce){*{transition:none!important;animation:none!important}html{scroll-behavior:auto}}

/* sub-pages: Projects, CV, About */
.vh{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap}
.lk{text-decoration:none;color:var(--accent)}
.lk:hover{text-decoration:underline;text-underline-offset:3px}
.nav a[aria-current="page"]{color:var(--fg);border-bottom:1px solid var(--accent)}
.page .pg-hd{padding-block:44px 6px;display:grid;gap:8px}
.page .pg-hd h1{margin:0}
.ptools{display:flex;flex-wrap:wrap;gap:10px 16px;align-items:center;justify-content:space-between;margin:26px 0 8px}
.ptools .chips{margin:0}
.search input{font:14px var(--f-sans);color:var(--fg);background:var(--panel);border:1px solid var(--line);border-radius:8px;padding:8px 12px;width:min(320px,100%)}
.search input:focus{outline:2px solid var(--accent);outline-offset:1px;border-color:var(--accent)}
@media (max-width:640px){.search,.search input{width:100%}}
.meta-line{margin:6px 0 16px}
#ongoing .nowb+.nowb,#nowB .nowb+.nowb{margin-top:16px}
#arch .arch+.arch{margin-top:14px}
.cv-pdf{display:flex;flex-wrap:wrap;gap:10px;margin-top:10px}
.pdfbtn{font:600 14px var(--f-sans);padding:10px 16px;border-radius:8px;border-color:var(--accent);color:var(--accent)}
.pdfbtn:hover{background:var(--accent-soft)}
.cvproj{list-style:none;margin:0;padding:0;border-top:1px solid var(--fg)}
.cvproj li{display:grid;grid-template-columns:minmax(0,1fr) auto;gap:2px 16px;padding:12px 2px;border-bottom:1px solid var(--line)}
.cvproj .cvp{font:600 15.5px var(--f-sans);text-align:left;color:var(--fg);background:none;border:0;padding:0;cursor:pointer}
.cvproj .cvp:hover{color:var(--accent)}
.cvproj .cvp-meta{font:12px var(--f-mono);color:var(--muted);white-space:nowrap}
.cvproj p{grid-column:1/-1;margin:2px 0 0;color:var(--muted);font-size:14px;line-height:1.55}
.edu-2{grid-template-columns:repeat(2,minmax(0,1fr))}
@media (max-width:760px){.edu-2{grid-template-columns:minmax(0,1fr)}}
.me{display:grid;grid-template-columns:260px minmax(0,1fr);gap:36px;align-items:start;margin-top:26px}
@media (max-width:760px){.me{grid-template-columns:minmax(0,1fr);gap:22px}.me-photo{max-width:220px}}
.me-photo{aspect-ratio:4/5;border:1px solid var(--line);border-radius:12px;overflow:hidden;display:grid;place-items:center;
  background-color:var(--panel);background-image:linear-gradient(var(--grid) 1px,transparent 1px),linear-gradient(90deg,var(--grid) 1px,transparent 1px);background-size:14px 14px}
.me-photo .mono{font:600 56px var(--f-mono);color:var(--accent);letter-spacing:.02em}
.me-photo.has{background:none}
.me-photo img{width:100%;height:100%;object-fit:cover;display:block}
.me-text .about-text{margin-bottom:14px}
.me-open{color:var(--muted);margin:0 0 18px;max-width:62ch;line-height:1.6}
.facts{display:grid;gap:8px;margin:0 0 20px}
.facts div{display:grid;grid-template-columns:130px minmax(0,1fr);gap:12px;padding-bottom:8px;border-bottom:1px dotted var(--line)}
.facts dt{font:500 11.5px var(--f-mono);letter-spacing:.06em;text-transform:uppercase;color:var(--muted);padding-top:2px}
.facts dd{margin:0}
.me-links{display:flex;flex-wrap:wrap;gap:8px}
.me-links .btn{font:500 14px var(--f-sans);padding:9px 14px;border-radius:8px}
.wip-about{margin:0;line-height:1.6;max-width:65ch}