/* Folio — a drawing sheet: warm paper, ink, one signal red, every work measured */
:root{
  --paper:#f4f0e8;--paper-2:#ebe5d9;--matte:#fbf9f4;
  --ink:#16130e;--ink-2:#3a352c;--muted:#6e685d;
  --line:rgba(22,19,14,.16);--grid:rgba(22,19,14,.045);
  --red:#c4301f;
  --display:"Anton",Impact,"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Noto Sans CJK SC",sans-serif;
  --sans:"Archivo",system-ui,-apple-system,"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Noto Sans CJK SC",sans-serif;
  --mono:"JetBrains Mono",ui-monospace,SFMono-Regular,Menlo,monospace;
}
@media (prefers-color-scheme:dark){:root:not([data-theme="light"]){
  --paper:#14120f;--paper-2:#1c1915;--matte:#201d18;
  --ink:#eee8dc;--ink-2:#cfc8ba;--muted:#958e80;
  --line:rgba(238,232,220,.16);--grid:rgba(238,232,220,.04);
  --red:#ff5a4b;
}}
:root[data-theme="dark"]{
  --paper:#14120f;--paper-2:#1c1915;--matte:#201d18;
  --ink:#eee8dc;--ink-2:#cfc8ba;--muted:#958e80;
  --line:rgba(238,232,220,.16);--grid:rgba(238,232,220,.04);
  --red:#ff5a4b;
}

*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;color:var(--ink);font-family:var(--sans);font-size:16px;line-height:1.6;
  background:
    repeating-linear-gradient(0deg,var(--grid) 0 1px,transparent 1px 56px),
    repeating-linear-gradient(90deg,var(--grid) 0 1px,transparent 1px 56px),
    var(--paper);
  -webkit-font-smoothing:antialiased;overflow-x:hidden;
}
a{color:inherit}
img{max-width:100%;display:block}
.wrap{max-width:1240px;margin:0 auto;padding:0 clamp(16px,4vw,48px)}
.mono{font-family:var(--mono);font-size:.78rem;letter-spacing:.04em}
.red{color:var(--red)}
.kicker{font-size:11px;letter-spacing:.3em;text-transform:uppercase;color:var(--muted)}

/* bilingual: both languages live in the markup, html[data-lang] picks one */
html[data-lang="en"] [lang="zh"],html[data-lang="zh"] [lang="en"]{display:none!important}

/* ---------- intro — once per visit ---------- */
.intro{
  position:fixed;inset:0;z-index:100;display:grid;place-items:center;cursor:pointer;
  background:
    repeating-linear-gradient(0deg,var(--grid) 0 1px,transparent 1px 56px),
    repeating-linear-gradient(90deg,var(--grid) 0 1px,transparent 1px 56px),
    var(--paper);
  transition:opacity .6s ease,visibility .6s;
}
.intro.gone{opacity:0;visibility:hidden}
.no-intro .intro{display:none}
.intro .in-stage{contain:layout;text-align:center;display:flex;flex-direction:column;gap:22px;align-items:center;padding:16px}
.intro .in-name{font-family:var(--display);text-transform:uppercase;font-size:clamp(34px,6vw,72px);letter-spacing:.14em;line-height:1;height:1em;white-space:nowrap}
.intro .in-term{font-family:var(--mono);font-size:clamp(12px,1.4vw,14px);color:var(--ink-2);height:1.6em;line-height:1.6em;width:min(66ch,92vw);text-align:left;white-space:nowrap;overflow:hidden;text-overflow:clip}
.intro .in-term::after{content:"▍";color:var(--red);animation:blink 1s steps(1) infinite;margin-left:2px}
.intro .in-hint{font-size:11px;letter-spacing:.34em;text-transform:uppercase;display:flex;align-items:center;gap:12px;animation:pulse 2.2s ease-in-out infinite}
.intro .in-hint::before{content:"";width:8px;height:8px;border-radius:50%;background:var(--red);box-shadow:0 0 12px var(--red)}
@keyframes blink{50%{opacity:0}}
@keyframes pulse{50%{opacity:.4}}

/* ---------- nav ---------- */
.nav{position:fixed;top:0;left:0;right:0;z-index:50;transition:background .3s,border-color .3s;border-bottom:1px solid transparent}
.nav.scrolled{background:color-mix(in srgb,var(--paper) 88%,transparent);backdrop-filter:blur(14px);border-color:var(--line)}
.nav .wrap{display:flex;align-items:center;justify-content:space-between;height:64px;gap:16px}
.brand{display:flex;align-items:center;gap:12px;text-decoration:none;font-size:13px;letter-spacing:.18em;text-transform:uppercase}
.stamp{width:34px;height:34px;border:1.5px solid var(--ink);display:grid;place-items:center;font-family:var(--display);font-size:15px;letter-spacing:.04em}
.nav-r{display:flex;gap:10px;align-items:center}
.pill{font:inherit;font-size:12px;letter-spacing:.16em;text-transform:uppercase;background:none;color:var(--ink);border:1px solid var(--line);border-radius:999px;padding:7px 14px;cursor:pointer;text-decoration:none;line-height:1.2}
.pill:hover{border-color:var(--ink)}
.pill:focus-visible,.btn:focus-visible,.work a:focus-visible,.menu a:focus-visible{outline:2px solid var(--red);outline-offset:3px}

/* ---------- menu overlay ---------- */
.menu{position:fixed;inset:0;z-index:60;background:var(--paper);overflow-y:auto;opacity:0;visibility:hidden;transition:opacity .35s,visibility .35s}
.menu.open{opacity:1;visibility:visible}
.menu .wrap{padding-top:96px;padding-bottom:48px}
.menu ol{list-style:none;margin:0;padding:0}
.menu a{display:grid;grid-template-columns:56px 1fr auto;gap:16px;align-items:baseline;padding:14px 0;border-bottom:1px solid var(--line);text-decoration:none}
.menu .m-num{font-family:var(--mono);font-size:13px;color:var(--muted)}
.menu .m-title{font-family:var(--display);text-transform:uppercase;font-size:clamp(26px,4vw,42px);letter-spacing:.04em;line-height:1.1}
.menu .m-tag{font-size:12px;color:var(--muted);letter-spacing:.1em;text-transform:uppercase}
.menu a:hover .m-title{color:var(--red)}
.menu .m-foot{display:flex;flex-wrap:wrap;gap:8px 24px;margin-top:32px;font-size:14px;color:var(--muted)}
.menu-close{position:fixed;top:14px;right:clamp(16px,4vw,48px)}

/* ---------- hero ---------- */
.hero{padding-top:128px;padding-bottom:40px}
.hero-top{display:flex;justify-content:space-between;flex-wrap:wrap;gap:8px 24px;border-bottom:1px solid var(--line);padding-bottom:12px}
.hero h1{font-family:var(--display);font-weight:400;text-transform:uppercase;font-size:clamp(56px,12.5vw,176px);line-height:.9;letter-spacing:.01em;margin:28px 0 0}
.hero h1 .red{display:inline-block}
.hero-row{display:grid;grid-template-columns:1.2fr 1fr;gap:24px 48px;margin-top:28px;align-items:end}
.hero .role-line{font-size:clamp(18px,2vw,22px);font-weight:500;margin:0}
.hero .dek{color:var(--ink-2);margin:10px 0 0;max-width:56ch}
.cta{display:flex;flex-wrap:wrap;gap:10px;justify-content:flex-end}
.btn{display:inline-flex;align-items:center;gap:8px;font-size:13px;letter-spacing:.12em;text-transform:uppercase;text-decoration:none;padding:12px 18px;border:1px solid var(--ink);color:var(--ink);background:none}
.btn.solid{background:var(--ink);color:var(--paper)}
.btn:hover{border-color:var(--red);color:var(--red)}
.btn.solid:hover{background:var(--red);color:#fff}

/* ---------- the wall ---------- */
.wall{padding-top:48px;padding-bottom:24px}
.wall-head{display:flex;justify-content:space-between;align-items:baseline;flex-wrap:wrap;gap:8px 24px;margin-bottom:32px}
.wall-head h2{font-family:var(--display);font-weight:400;text-transform:uppercase;font-size:clamp(28px,3.4vw,40px);letter-spacing:.04em;margin:0;line-height:1}
.works{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:56px clamp(24px,3vw,44px)}
.work a{display:block;text-decoration:none}
.work .w-label{display:flex;justify-content:space-between;color:var(--muted);margin-bottom:10px}
.frame{position:relative;background:var(--matte);padding:14px;box-shadow:0 1px 0 var(--line),0 18px 40px -24px rgba(22,19,14,.35);transition:transform .35s ease,box-shadow .35s ease}
.frame img{aspect-ratio:5/4;height:auto;object-fit:cover;object-position:top;width:100%;filter:grayscale(1) contrast(1.05);transition:filter .45s ease}
.work a:hover .frame,.work a:focus-visible .frame{transform:translateY(-4px);box-shadow:0 1px 0 var(--line),0 28px 50px -24px rgba(22,19,14,.45)}
.work a:hover .frame img,.work a:focus-visible .frame img{filter:none}
/* dimension lines: bottom (horizontal) and right (vertical), drawn like a drawing */
.dim{position:relative;margin-top:14px;height:16px;color:var(--muted)}
.dim .d-line{position:absolute;left:0;right:0;top:7px;height:1px;background:currentColor;transform:scaleX(.35);transition:transform .45s ease,color .3s}
.dim .d-line::before,.dim .d-line::after{content:"";position:absolute;top:-5px;width:1px;height:11px;background:currentColor}
.dim .d-line::before{left:0}.dim .d-line::after{right:0}
.dim .d-txt{position:absolute;left:50%;top:-1px;transform:translateX(-50%);background:var(--paper);padding:0 8px;white-space:nowrap;opacity:0;transition:opacity .3s}
.frame .v-dim{position:absolute;top:14px;bottom:14px;right:-16px;width:1px;background:var(--muted);transform:scaleY(.3);transition:transform .45s ease,background .3s}
.work a:hover .d-line,.work a:focus-visible .d-line{transform:none;color:var(--red)}
.work a:hover .d-txt,.work a:focus-visible .d-txt{opacity:1;color:var(--red)}
.work a:hover .v-dim,.work a:focus-visible .v-dim{transform:none;background:var(--red)}
.w-cap{display:grid;grid-template-columns:auto 1fr;gap:0 14px;margin-top:10px;align-items:baseline}
.w-cap .num{font-family:var(--display);font-size:28px;line-height:1;color:var(--muted)}
.w-cap h3{font-family:var(--display);font-weight:400;text-transform:uppercase;font-size:24px;letter-spacing:.03em;margin:0;line-height:1.1}
.w-cap .type{grid-column:2;font-size:13px;color:var(--muted)}
.w-cap p{grid-column:2;margin:6px 0 0;font-size:14.5px;color:var(--ink-2)}
.work a:hover h3{color:var(--red)}
.wall-foot{display:flex;justify-content:space-between;flex-wrap:wrap;gap:8px 24px;border-top:1px solid var(--line);margin-top:56px;padding-top:12px;color:var(--muted)}

/* ---------- marquee ---------- */
.mq{border-top:1px solid var(--line);border-bottom:1px solid var(--line);overflow:hidden;margin:48px 0 0;background:var(--paper-2)}
.mq-track{display:flex;width:max-content;animation:mq 38s linear infinite}
.mq-item{font-family:var(--display);text-transform:uppercase;font-size:clamp(20px,2.4vw,28px);letter-spacing:.06em;padding:14px 0;white-space:nowrap}
.mq-item::after{content:"✦";color:var(--red);margin:0 28px;font-family:var(--sans);font-size:.7em;vertical-align:middle}
@keyframes mq{to{transform:translateX(-50%)}}

/* ---------- sections ---------- */
.sec{padding-top:96px;padding-bottom:24px}
.sec-head{display:flex;align-items:baseline;gap:18px;border-bottom:1px solid var(--line);padding-bottom:12px;margin-bottom:40px}
.sec-head .n{font-family:var(--display);font-size:clamp(28px,3vw,40px);line-height:1}
.sec-head h2{font-family:var(--display);font-weight:400;text-transform:uppercase;font-size:clamp(28px,3vw,40px);letter-spacing:.04em;margin:0;line-height:1}

.study{display:grid;grid-template-columns:minmax(0,5fr) minmax(0,7fr);gap:32px clamp(32px,5vw,72px)}
.fig{margin:0;position:sticky;top:96px;align-self:start}
.fig .plate{background:var(--matte);padding:18px;box-shadow:0 1px 0 var(--line),0 18px 40px -24px rgba(22,19,14,.35)}
.fig .plate svg{width:100%;height:auto;display:block}
.study h3+.quote{margin-top:0}
.fig .plate img{width:100%;aspect-ratio:4/5;object-fit:cover;filter:grayscale(1) contrast(1.05) sepia(.12)}
.fig figcaption{display:flex;justify-content:space-between;gap:12px;margin-top:10px;color:var(--muted)}
.study h3{font-family:var(--display);font-weight:400;text-transform:uppercase;font-size:clamp(34px,4.4vw,58px);line-height:1;letter-spacing:.02em;margin:10px 0 24px}
.quote{font-size:clamp(18px,1.8vw,21px);line-height:1.5;border-left:2px solid var(--red);padding-left:18px;margin:0 0 24px}
.study p{color:var(--ink-2);max-width:62ch}
.study b{color:var(--ink)}
.stats{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));border-top:1px solid var(--line);border-bottom:1px solid var(--line);margin:36px 0}
.stat{padding:18px 12px 16px 0}
.stat+.stat{border-left:1px solid var(--line);padding-left:16px}
.st-num{font-family:var(--display);font-size:clamp(28px,3.2vw,40px);line-height:1}
.st-lab{font-size:12.5px;color:var(--muted);margin-top:6px;line-height:1.35}

.roles{list-style:none;margin:0;padding:0}
.roles>li{display:grid;grid-template-columns:150px 1fr;gap:4px 24px;padding:18px 0;border-top:1px solid var(--line)}
.roles .when{color:var(--muted)}
.roles b{display:block;font-weight:600}
.roles .at{font-size:14px;color:var(--muted)}
.roles ul{margin:8px 0 0;padding-left:18px;font-size:15px;color:var(--ink-2)}
.roles ul li{margin-bottom:6px}
.roles a{text-underline-offset:3px}
dl.skills{display:grid;grid-template-columns:150px 1fr;gap:10px 24px;margin:32px 0 0;font-size:15px}
dl.skills dt{color:var(--muted)}
dl.skills dd{margin:0;color:var(--ink-2)}

/* ---------- invitation ---------- */
.invite{text-align:center;padding:48px 0 32px}
.invite .big{font-family:var(--display);font-weight:400;text-transform:uppercase;font-size:clamp(48px,9vw,128px);line-height:.95;margin:16px 0 28px}
.invite .mail{font-size:clamp(18px,2.4vw,26px);text-underline-offset:6px;text-decoration-thickness:1px}
.invite .mail:hover{color:var(--red)}
.invite .cta{justify-content:center;margin-top:32px}
.invite p{color:var(--ink-2);max-width:52ch;margin:24px auto 0}

/* ---------- footer ---------- */
.foot{border-top:1px solid var(--line);margin-top:96px;padding-top:40px;padding-bottom:48px;font-size:14px}
.foot .cols{display:grid;grid-template-columns:2fr 1fr 1fr 1fr;gap:24px}
.foot .foot-h{font-size:11px;letter-spacing:.3em;text-transform:uppercase;color:var(--muted);font-weight:500;margin:0 0 12px}
.foot ul{list-style:none;margin:0;padding:0}
.foot li{margin-bottom:6px}
.foot a{text-decoration:none}
.foot a:hover{color:var(--red)}
.foot .sign{font-family:var(--display);font-size:28px;text-transform:uppercase;letter-spacing:.06em;line-height:1}
.foot .motto{color:var(--muted);margin-top:10px}
.foot .base{display:flex;justify-content:space-between;flex-wrap:wrap;gap:8px;border-top:1px solid var(--line);margin-top:32px;padding-top:14px;color:var(--muted)}

/* ---------- small utilities ---------- */
.skip{position:absolute;left:-9999px;top:8px;z-index:200;background:var(--ink);color:var(--paper);padding:8px 14px}
.skip:focus{left:16px}
.muted{color:var(--muted)}
.avail{display:flex;align-items:center;gap:10px;color:var(--ink-2);margin:16px 0 0}
.avail .dot{width:8px;height:8px;border-radius:50%;background:#2fa36b;box-shadow:0 0 0 4px rgba(47,163,107,.18);flex:none}
.sec-note{margin-left:auto;color:var(--muted)}
.earlier{color:var(--muted);margin-top:28px;border-top:1px solid var(--line);padding-top:14px}
.cta.left{justify-content:flex-start;margin-top:24px}

/* ---------- flow (drawn pipeline) ---------- */
.flow{list-style:none;margin:0;padding:0;display:flex;flex-wrap:wrap;align-items:stretch;gap:0;counter-reset:f}
.flow .step{position:relative;flex:1 1 0;min-width:0;display:flex;align-items:center;padding-right:22px}
.flow .step>span{display:block;width:100%;border:1px solid var(--ink);padding:10px 10px;font-size:12.5px;line-height:1.3;text-align:center;background:var(--matte)}
.flow .step:not(:last-child)::after{content:"";position:absolute;right:4px;top:50%;width:14px;height:1px;background:var(--ink)}
.flow .step:not(:last-child)::before{content:"";position:absolute;right:3px;top:calc(50% - 4px);border:4px solid transparent;border-left:6px solid var(--ink);border-right:0}
.flow .step.gate>span{border-color:var(--red);color:var(--red);font-weight:600;border-width:1.5px;border-style:dashed}
.flow.big .step>span{padding:18px 12px;font-size:14px}
.flow.big .step.gate>span{font-size:15px}
@media (max-width:680px){
  .flow{flex-direction:column}
  .flow .step{padding:0 0 18px}
  .flow .step:not(:last-child)::after{right:auto;left:50%;top:auto;bottom:3px;width:1px;height:12px}
  .flow .step:not(:last-child)::before{right:auto;left:calc(50% - 4px);top:auto;bottom:0;border:4px solid transparent;border-top:6px solid var(--ink);border-bottom:0}
}

/* ---------- behind the wall ---------- */
.deeps{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:24px}
.deeps>.deep:last-child:nth-child(odd){grid-column:1/-1}
.deep a{display:flex;flex-direction:column;gap:8px;height:100%;text-decoration:none;border:1px solid var(--line);background:var(--matte);padding:20px 20px 18px;transition:border-color .3s,transform .3s}
.deep a:hover,.deep a:focus-visible{border-color:var(--ink);transform:translateY(-3px)}
.deep .w-label{color:var(--muted);display:flex;justify-content:space-between;gap:8px;margin:0}
.deep h3{font-family:var(--display);font-weight:400;text-transform:uppercase;font-size:26px;letter-spacing:.03em;line-height:1.05;margin:6px 0 0}
.deep a:hover h3{color:var(--red)}
.deep .type{font-size:13px;color:var(--muted)}
.deep p{margin:4px 0 12px;font-size:14.5px;color:var(--ink-2)}
.deep .flow{margin-top:auto}
.deep .flow .step{padding-right:16px}
.deep .flow .step>span{font-size:10.5px;padding:7px 4px}
.deep .go{margin-top:14px;color:var(--ink)}
.deep a:hover .go{color:var(--red)}

/* ---------- case pages ---------- */
.case-head{padding-top:112px}
.case-head h1{font-family:var(--display);font-weight:400;text-transform:uppercase;font-size:clamp(48px,9vw,132px);line-height:.92;margin:24px 0 0}
.case-pitch{font-size:clamp(18px,2vw,23px);max-width:46ch;margin:18px 0 0;color:var(--ink-2)}
.case-hero{margin:48px 0 0}
.case-hero .frame img{aspect-ratio:16/10;filter:none}
.dim.on .d-line{transform:none;color:var(--red)}
.dim.on .d-txt{opacity:1;color:var(--red)}
.case-hero .frame .v-dim{transform:none;background:var(--red)}
.plate-flow .sheet{background:
    repeating-linear-gradient(0deg,var(--line) 0 1px,transparent 1px 28px),
    repeating-linear-gradient(90deg,var(--line) 0 1px,transparent 1px 28px),var(--matte);
  padding:clamp(28px,6vw,72px) clamp(16px,4vw,56px) 20px;box-shadow:0 1px 0 var(--line),0 18px 40px -24px rgba(22,19,14,.35)}
.sheet-foot{display:flex;justify-content:space-between;gap:12px;flex-wrap:wrap;color:var(--muted);margin-top:clamp(28px,5vw,56px);border-top:1px solid var(--line);padding-top:10px}
.case-body{display:grid;grid-template-columns:minmax(0,4fr) minmax(0,8fr);gap:40px clamp(32px,5vw,72px);margin-top:64px}
.titleblock{position:sticky;top:88px;align-self:start;border:1.5px solid var(--ink)}
.titleblock dl{margin:0;display:grid;grid-template-columns:minmax(0,1fr)}
.titleblock dt{font-family:var(--mono);font-size:10.5px;letter-spacing:.14em;text-transform:uppercase;color:var(--muted);padding:10px 14px 0;border-top:1px solid var(--line)}
.titleblock dt:first-child{border-top:0}
.titleblock dd{margin:0;padding:2px 14px 12px;font-size:14px;color:var(--ink-2)}
.case-sec{margin-bottom:56px}
.case-h{display:flex;gap:14px;align-items:baseline;font-family:var(--display);font-weight:400;text-transform:uppercase;font-size:clamp(24px,2.6vw,32px);letter-spacing:.04em;margin:0 0 18px;border-bottom:1px solid var(--line);padding-bottom:10px}
.case-h .mono{color:var(--red);font-size:13px}
.lead{font-size:clamp(17px,1.7vw,19px);line-height:1.6;margin:0;max-width:62ch}
.approach,.limits{margin:0;padding-left:20px;max-width:66ch}
.approach li,.limits li{margin-bottom:12px;color:var(--ink-2)}
.limits li::marker{color:var(--red)}
code{font-family:var(--mono);font-size:.86em;background:var(--paper-2);padding:1px 5px;border-radius:3px}
.metrics{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));border-top:1px solid var(--line)}
.metric{padding:18px 16px 16px 0;border-bottom:1px solid var(--line)}
.metric:nth-child(even){border-left:1px solid var(--line);padding-left:18px}
.mv{font-family:var(--display);font-size:clamp(30px,3.4vw,44px);line-height:1}
.ml{font-size:14px;color:var(--ink-2);margin-top:8px}
.ms{color:var(--muted);margin-top:8px;font-size:11px;word-break:break-word}
.ms a{color:var(--muted)}
.ms a:hover{color:var(--red)}
.pager{display:flex;justify-content:space-between;gap:12px;flex-wrap:wrap;border-top:1px solid var(--line);border-bottom:1px solid var(--line);padding-top:16px;padding-bottom:16px;margin-top:24px}
.pager a{text-decoration:none}
.pager a:hover{color:var(--red)}

.case-video{margin:0}
.case-video video{width:100%;display:block;background:#000;border:1px solid var(--line)}
.case-video audio{width:100%;display:block}
.case-video figcaption{color:var(--muted);margin-top:8px}
.series{display:grid;gap:48px;margin-top:24px}
.ep-meta{color:var(--muted);margin:12px 0 2px;font-size:12px;letter-spacing:.08em}
.ep-title{margin:0 0 6px;font-size:22px}
.ep-key{margin:0 0 12px;color:var(--ink-2)}
.chapters{display:flex;flex-wrap:wrap;gap:6px}
.chapters .ch{font-size:12px;padding:5px 10px;border:1px solid var(--line);background:transparent;color:var(--ink);border-radius:999px;cursor:pointer}
.chapters .ch:hover,.chapters .ch:focus-visible{border-color:var(--ink)}
.iters .mono{display:inline-block;min-width:48px;color:var(--muted)}

/* ---------- résumé ---------- */
.resume{padding-top:104px;max-width:900px}
.r-actions{display:flex;justify-content:flex-end}
.r-head h1{font-family:var(--display);font-weight:400;text-transform:uppercase;font-size:clamp(44px,7vw,80px);line-height:.95;margin:16px 0 8px}
.r-head p{margin:4px 0;color:var(--ink-2)}
.resume h2{font-family:var(--display);font-weight:400;text-transform:uppercase;letter-spacing:.06em;font-size:22px;border-bottom:1.5px solid var(--ink);padding-bottom:4px;margin:36px 0 12px}
.r-role{margin-bottom:14px}
.r-top{display:flex;justify-content:space-between;gap:12px;flex-wrap:wrap}
.r-top a{text-underline-offset:3px}
.r-at{color:var(--muted);font-size:14px}
.r-role ul{margin:6px 0 0;padding-left:18px;font-size:15px;color:var(--ink-2)}
.r-role li{margin-bottom:4px}
@media print{
  body{background:#fff;color:#000;font-size:11pt}
  .nav,.menu,.foot,.no-print,.skip,.intro{display:none!important}
  .resume{padding-top:0;max-width:none}
  a{color:#000;text-decoration:none}
  .r-head h1{font-size:34pt}
}

/* ---------- learning archive: drawing register ---------- */
.arch-intro{max-width:66ch;color:var(--ink-2);margin:0 0 28px}
.register{list-style:none;margin:0;padding:0;border-top:1.5px solid var(--ink);border-bottom:1.5px solid var(--ink)}
.register li>a,.reg-head{display:grid;grid-template-columns:52px 74px minmax(0,1.1fr) minmax(0,1.5fr) 220px;gap:16px;align-items:baseline;padding:16px 0}
.reg-head{font-size:10.5px;letter-spacing:.14em;text-transform:uppercase;color:var(--muted);padding:10px 0;border-bottom:1px solid var(--line)}
.register li>a{text-decoration:none;border-bottom:1px solid var(--line);position:relative;transition:background .25s,padding .25s}
.register li:last-child>a{border-bottom:0}
.register li>a::before{content:"";position:absolute;left:0;top:-1px;height:1.5px;width:0;background:var(--red);transition:width .45s ease}
.register li>a:hover,.register li>a:focus-visible{background:var(--paper-2);padding-left:10px}
.register li>a:hover::before,.register li>a:focus-visible::before{width:100%}
.r-no{color:var(--red)}
.r-yr{color:var(--muted)}
.r-ti b{display:block;font-family:var(--display);font-weight:400;text-transform:uppercase;font-size:21px;letter-spacing:.03em;line-height:1.1}
.r-ti em{font-style:normal;font-size:12.5px;color:var(--muted)}
.r-rule{font-size:15px;color:var(--ink-2)}
.r-now{color:var(--muted);text-align:right;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.register li>a:hover .r-now,.register li>a:hover b{color:var(--red)}

.timeline{list-style:none;margin:56px 0 8px;padding:0;display:grid;grid-template-columns:repeat(4,minmax(0,1fr));position:relative}
.timeline::before{content:"";position:absolute;left:0;right:0;top:9px;height:1.5px;background:var(--ink)}
.timeline li{position:relative;padding-top:30px;padding-right:12px}
.timeline li::before{content:"";position:absolute;left:0;top:3px;width:13px;height:13px;border-radius:50%;background:var(--paper);border:1.5px solid var(--ink)}
.timeline li.now::before{background:var(--red);border-color:var(--red);box-shadow:0 0 0 5px color-mix(in srgb,var(--red) 22%,transparent)}
.t-yr{display:block;font-family:var(--display);font-size:30px;line-height:1}
.t-lb{display:block;font-size:13.5px;color:var(--ink-2);margin-top:6px}
.timeline li.now .t-yr{color:var(--red)}

.sheets{margin-top:48px}
.sheet-a{display:grid;grid-template-columns:150px minmax(0,1fr);gap:24px clamp(24px,4vw,56px);border-top:1.5px solid var(--ink);padding:32px 0 40px;scroll-margin-top:84px}
.sa-side{display:flex;flex-direction:column;gap:6px;color:var(--muted)}
.sa-no{font-family:var(--display);font-size:44px;line-height:1;color:var(--red);letter-spacing:.02em}
.sa-main h2{font-family:var(--display);font-weight:400;text-transform:uppercase;font-size:clamp(30px,3.6vw,46px);line-height:1;letter-spacing:.02em;margin:0}
.sa-stack{color:var(--muted);margin:10px 0 18px}
.sa-dl{display:grid;grid-template-columns:150px minmax(0,1fr);gap:14px 24px;margin:0;max-width:880px}
.sa-dl dt{font-family:var(--mono);font-size:11px;letter-spacing:.14em;text-transform:uppercase;color:var(--muted);padding-top:4px}
.sa-dl dt.red{color:var(--red)}
.sa-dl dd{margin:0;color:var(--ink-2)}
.sa-dl dd.sa-rule{font-size:clamp(17px,1.7vw,20px);color:var(--ink);border-left:2px solid var(--red);padding-left:14px}
.sa-foot{display:flex;justify-content:space-between;flex-wrap:wrap;gap:8px 24px;margin-top:24px;padding-top:12px;border-top:1px solid var(--line);color:var(--muted)}
.sa-foot a{color:var(--ink);text-decoration:none}
.sa-foot a:hover{color:var(--red)}
@media (max-width:980px){
  .register li>a,.reg-head{grid-template-columns:44px 64px minmax(0,1fr) minmax(0,1.3fr)}
  .r-now{display:none}
  .reg-head span:last-child{display:none}
}
@media (max-width:680px){
  .reg-head{display:none}
  .register li>a{grid-template-columns:40px minmax(0,1fr);gap:4px 12px}
  .r-yr{grid-column:2;grid-row:1}
  .r-no{grid-row:1/4}
  .r-ti,.r-rule{grid-column:2}
  .timeline{grid-template-columns:minmax(0,1fr);gap:18px}
  .timeline::before{left:6px;right:auto;top:0;bottom:0;width:1.5px;height:auto}
  .timeline li{padding:0 0 0 30px}
  .timeline li::before{top:6px}
  .sheet-a,.sa-dl{grid-template-columns:minmax(0,1fr)}
  .sa-side{flex-direction:row;flex-wrap:wrap;align-items:baseline;gap:12px}
}

/* ---------- refinements ---------- */
/* anchors land below the fixed nav */
[id]{scroll-margin-top:84px}
/* touch screens cannot hover: show the measurements and colour by default */
@media (hover:none){
  .dim .d-line{transform:none;color:var(--red)}
  .dim .d-txt{opacity:1;color:var(--red)}
  .frame .v-dim{transform:none;background:var(--red)}
  .frame img{filter:none}
}
/* moving content pauses while the reader points at or focuses it (WCAG 2.2.2) */
.mq:hover .mq-track,.mq:focus-within .mq-track{animation-play-state:paused}
/* current page in the menu */
.menu a[aria-current="page"] .m-title{color:var(--red)}
.menu a[aria-current="page"] .m-num::after{content:" ●";color:var(--red)}

/* ---------- architecture diagrams ---------- */
.dg-fig{margin:0 0 36px}
.dg-scroll{overflow-x:auto;-webkit-overflow-scrolling:touch;border:1px solid var(--line);
  background:repeating-linear-gradient(0deg,var(--grid) 0 1px,transparent 1px 28px),repeating-linear-gradient(90deg,var(--grid) 0 1px,transparent 1px 28px),var(--matte)}
.dg{display:block;max-width:100%;height:auto;min-width:640px;font-family:var(--sans)}
.dg-b{fill:var(--matte);stroke:var(--ink);stroke-width:1.2}
.dg-gate{stroke:var(--red);stroke-width:1.6;stroke-dasharray:5 4}
.dg-end{fill:var(--paper-2)}
.dg-store{fill:var(--paper-2)}
.dg-line{stroke:var(--ink);stroke-width:1;fill:none}
.dg-t{font-size:12.5px;fill:var(--ink)}
.dg-tg{fill:var(--red);font-weight:600}
.dg-e{fill:none;stroke:var(--ink-2);stroke-width:1.1}
.dg-dash{stroke-dasharray:4 4}
.dg-ah{fill:var(--ink-2)}
.dg-l{font-family:var(--mono);font-size:10px;fill:var(--muted);paint-order:stroke;stroke:var(--matte);stroke-width:4px;stroke-linejoin:round}
.dg-fig figcaption{display:flex;justify-content:space-between;gap:12px;flex-wrap:wrap;color:var(--muted);margin-top:8px}

/* ---------- recognition ---------- */
.awards{list-style:none;margin:0;padding:0;border-top:1px solid var(--line)}
.awards li{display:flex;gap:14px;align-items:baseline;padding:14px 0;border-bottom:1px solid var(--line);font-size:clamp(17px,1.7vw,20px)}
.awards li::before{content:"✦";color:var(--red);font-size:.8em}

/* ---------- YouTube facade: the player loads only after a click ---------- */
.yt{position:relative;display:block;aspect-ratio:16/9;background:#000;border:1px solid var(--line);overflow:hidden;text-decoration:none}
.yt img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;opacity:.85;transition:opacity .3s}
.yt:hover img,.yt:focus-visible img{opacity:1}
.yt-play{position:absolute;left:50%;top:50%;width:72px;height:72px;margin:-36px 0 0 -36px;border-radius:50%;background:var(--red);box-shadow:0 8px 30px rgba(0,0,0,.35)}
.yt-play::after{content:"";position:absolute;left:29px;top:22px;border-style:solid;border-width:14px 0 14px 22px;border-color:transparent transparent transparent #fff}
.yt-label{position:absolute;left:12px;bottom:10px;color:#fff;background:rgba(0,0,0,.55);padding:3px 8px}
.yt iframe{position:absolute;inset:0;width:100%;height:100%;border:0}

/* ---------- reveal ---------- */
.reveal{opacity:0;transform:translateY(18px);transition:opacity .8s ease,transform .8s ease}
.reveal.in{opacity:1;transform:none}

/* ---------- responsive ---------- */
@media (max-width:980px){
  .deeps{grid-template-columns:minmax(0,1fr)}
  .case-body{grid-template-columns:minmax(0,1fr)}
  .titleblock{position:static}
  .works{grid-template-columns:repeat(2,minmax(0,1fr))}
  .study{grid-template-columns:minmax(0,1fr)}
  .fig{position:static;max-width:420px}
  .foot .cols{grid-template-columns:1fr 1fr}
}
@media (max-width:680px){
  .works{grid-template-columns:minmax(0,1fr);gap:44px}
  .hero-row{grid-template-columns:minmax(0,1fr)}
  .cta{justify-content:flex-start}
  .stats{grid-template-columns:repeat(2,minmax(0,1fr))}
  .stat:nth-child(3){border-left:0;padding-left:0}
  .stat:nth-child(n+3){border-top:1px solid var(--line)}
  .roles>li,dl.skills{grid-template-columns:minmax(0,1fr)}
  .brand .b-txt,.hide-sm{display:none}
  .metrics{grid-template-columns:minmax(0,1fr)}
  .metric:nth-child(even){border-left:0;padding-left:0}
  .sec-head{flex-wrap:wrap}
  .sec-note{margin-left:0;width:100%}
  .frame .v-dim{display:none}
  .menu a{grid-template-columns:40px 1fr}
  .menu .m-tag{display:none}
}
@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{animation:none!important;transition:none!important}
  html{scroll-behavior:auto}
  .reveal{opacity:1;transform:none}
}
/* How I decide */
.decs{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px;margin-top:8px}
.dec{display:flex;flex-direction:column;gap:8px;border:1px solid var(--line);background:var(--matte);padding:20px 20px 18px;scroll-margin-top:84px}
.dec .w-label{color:var(--muted);display:flex;flex-direction:column;gap:2px;margin:0;font-size:11px}
.dec h3{font-family:var(--display);font-weight:400;text-transform:uppercase;font-size:24px;letter-spacing:.03em;line-height:1.08;margin:6px 0 4px}
.dec dl{margin:0;display:grid;gap:4px}
.dec dt{font-family:var(--mono);font-size:11px;letter-spacing:.14em;text-transform:uppercase;color:var(--muted);margin-top:8px}
.dec dt.red{color:var(--red)}
.dec dd{margin:0;font-size:14.5px;color:var(--ink-2)}
.dec .dec-rule{font-size:16px;color:var(--ink);font-weight:600}
.dec .go{margin-top:auto;padding-top:12px;color:var(--ink);text-decoration:none}
.dec .go:hover{color:var(--red)}
@media (max-width:1000px){.decs{grid-template-columns:minmax(0,1fr)}}

/* paper pages */
.paper{max-width:780px;padding-top:120px;padding-bottom:40px;color:var(--ink-2);font-size:17px;line-height:1.65}
.paper .p-back{font-size:13px;margin:0 0 28px}.paper .p-back a{color:var(--muted)}
.paper h1{font-family:var(--sans);font-weight:700;font-size:clamp(26px,3.4vw,38px);line-height:1.2;color:var(--ink);margin:8px 0 14px;text-transform:none;letter-spacing:0}
.paper .p-kicker,.paper .p-meta{font-size:12px;color:var(--muted);letter-spacing:.06em}.paper .p-by{font-size:18px;color:var(--ink);margin:0 0 4px}
.paper .p-head{border-bottom:1px solid var(--line);padding-bottom:22px;margin-bottom:28px}
.paper section{margin:0 0 40px}
.paper h2{display:flex;gap:12px;align-items:baseline;font-family:var(--sans);font-weight:700;font-size:22px;color:var(--ink);margin:0 0 14px;text-transform:none;letter-spacing:0}
.paper h2 .mono{color:var(--red);font-size:14px}.paper h3{font-size:18px;color:var(--ink);margin:30px 0 10px}
.paper p,.paper li{max-width:70ch}.paper ol,.paper ul{padding-left:22px}.paper li{margin-bottom:8px}
.paper a{color:var(--ink);text-decoration:underline;text-underline-offset:3px}
.paper .p-abs{background:var(--matte);border:1px solid var(--line);padding:20px 24px}.paper .p-abs h2{font-size:15px;letter-spacing:.12em;text-transform:uppercase}
.paper .p-abs p{margin:0;font-size:16px}
.paper figure{margin:26px 0}.paper figcaption{font-size:14px;color:var(--muted);margin:8px 0}
.paper .p-zoom{text-decoration:none}.paper .p-fig img{display:block;cursor:zoom-in;width:100%;height:auto;background:#fff;border:1px solid var(--line);padding:8px}
.paper .p-scroll{overflow-x:auto;-webkit-overflow-scrolling:touch}
.paper table{border-collapse:collapse;width:100%;font-size:14px;font-variant-numeric:tabular-nums;white-space:nowrap}
.paper th{text-align:left;font-weight:600;color:var(--ink);border-bottom:1.5px solid var(--ink);padding:6px 10px}
.paper td{border-bottom:1px solid var(--line);padding:6px 10px}.paper tr.ref td{color:var(--muted);font-style:italic}
.paper tbody tr:last-child td{border-bottom:1.5px solid var(--ink)}
.paper pre{overflow-x:auto;background:var(--matte);border:1px solid var(--line);padding:14px 16px;font-size:13px;line-height:1.6;margin:0}
.paper code{font-family:var(--mono);font-size:.9em}.paper pre .ln{display:inline-block;width:2em;color:var(--muted);user-select:none}.paper pre .ln.bad{color:var(--red);font-weight:700}
.paper .p-issues li{margin-bottom:12px}.paper .p-refs li{font-size:15px}
@media (max-width:680px){.paper{padding-top:96px;font-size:16px}.paper .p-abs{padding:16px}}
.paper .p-refl{border-left:3px solid var(--red);padding-left:22px}.paper .p-check li{margin-bottom:10px}
@media (max-width:680px){.paper .p-refl{padding-left:14px}}
/* read-aloud bar on paper pages */
.reader{position:fixed;left:50%;bottom:16px;transform:translateX(-50%);z-index:40;display:flex;align-items:center;gap:12px;width:min(720px,calc(100% - 32px));
  background:var(--matte);border:1px solid var(--line);border-radius:999px;padding:8px 16px 8px 8px;font-size:12px;color:var(--ink-2);box-shadow:0 6px 24px rgba(0,0,0,.12)}
.reader[hidden]{display:none}
.reader .r-play{flex:none;width:36px;height:36px;border-radius:50%;border:0;background:var(--ink);color:var(--paper);font-size:13px;cursor:pointer}
.reader .r-label{flex:none;white-space:nowrap}.reader .r-bar{flex:1;min-width:60px;accent-color:var(--red)}.reader .r-time{flex:none;font-variant-numeric:tabular-nums}
.reader .r-note{position:absolute;left:20px;bottom:calc(100% + 6px);font-size:12px;color:var(--muted)}
.paper .s{transition:background-color .2s;border-radius:3px}
body.reading .paper .s{cursor:pointer}
.paper .s.on{background:color-mix(in srgb,var(--red) 16%,transparent);box-shadow:0 0 0 2px color-mix(in srgb,var(--red) 16%,transparent)}
.paper{padding-bottom:120px}
@media (max-width:680px){.reader .r-label{display:none}.reader{bottom:10px}}
@media (prefers-reduced-motion:reduce){.paper .s{transition:none}}