/* ===== Tokens: paper, ink, one restrained accent ===== */
:root{
  --bg:#faf8f4; --panel:#f2efe8; --ink:#16181c; --text:#16181c; --body:#3a3d44; --muted:#6d717a; --faint:#8f939b;
  --line:rgba(22,24,28,.14); --line-2:rgba(22,24,28,.26);
  --accent:#9b3d22; --accent-2:#3d5a80; --accent-3:#7a4a86; --warn:#8a6d1f;
  --serif:"Source Serif 4",Charter,Georgia,"Times New Roman",serif;
  --font:var(--serif);
  --mono:"IBM Plex Mono",ui-monospace,SFMono-Regular,Menlo,monospace;
  --ease:cubic-bezier(.2,.7,.2,1); --wrap:1000px; --measure:36em; --gutter:132px;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth;background:var(--bg);scroll-padding-top:76px}
body{margin:0;background:var(--bg);color:var(--text);font-family:var(--serif);font-weight:400;font-size:17px;line-height:1.65;
  -webkit-font-smoothing:antialiased;text-rendering:optimizeLegibility;overflow-x:hidden}
a{color:inherit;text-decoration:none}
h1,h2,h3{margin:0;font-weight:400}
::selection{background:rgba(155,61,34,.18)}


/* ===== Nav ===== */
.nav{position:fixed;top:0;left:0;right:0;z-index:20;display:grid;grid-template-columns:1fr auto 1fr;align-items:center;padding:18px 32px;
  font-family:var(--mono);font-size:11px;letter-spacing:.1em;text-transform:uppercase;border-bottom:1px solid transparent;
  transition:background .3s,border-color .3s,padding .3s}
.nav.scrolled{background:rgba(250,248,244,.92);backdrop-filter:blur(8px);-webkit-backdrop-filter:blur(8px);border-bottom-color:var(--line);padding:12px 32px}
.brand{color:var(--ink);font-weight:500;justify-self:start;letter-spacing:.06em}
.brand span{color:var(--accent)}
.nav nav{display:flex;gap:26px}
.nav nav a{color:var(--muted);padding-bottom:2px;border-bottom:1px solid transparent;transition:color .2s,border-color .2s}
.nav nav a:hover,.nav nav a.active{color:var(--ink);border-bottom-color:var(--accent)}
.nav-contact{justify-self:end;display:flex;flex-direction:column;align-items:flex-end;gap:2px;text-transform:none;letter-spacing:0;font-size:12px;line-height:1.4;white-space:nowrap}
.nav-contact a{color:var(--muted);transition:color .2s}
.nav-contact>a{color:var(--ink)}
.nav-contact a:hover{color:var(--accent)}
.nav-contact i{font-style:normal;opacity:.45;margin:0 7px}

/* ===== Layout ===== */
main{position:relative;z-index:1}
.wrap{max-width:var(--wrap);margin:0 auto;padding:0 32px;position:relative}
.label{font-family:var(--mono);font-size:11px;letter-spacing:.12em;text-transform:uppercase;color:var(--muted);margin:0 0 18px}
.block > .wrap{display:grid;grid-template-columns:var(--gutter) minmax(0,1fr);column-gap:40px;align-items:start}
.block > .wrap > *{grid-column:2;min-width:0}
.block > .wrap > .label{grid-column:1;grid-row:1;margin:0;padding-top:.45em;text-align:right}
.block > .wrap > .title{grid-row:1}
/* dense grids and the job list run the full width of the page */
.block > .wrap > .jobs,.block > .wrap > .cards,.block > .wrap > .flow,.block > .wrap > .flow-foot,.block > .wrap > .papers{grid-column:1/-1}

/* ===== Hero ===== */
.hero{position:relative;padding:148px 0 92px}
.hero-cols{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,322px);column-gap:56px;align-items:start}
.hero-copy{min-width:0}
.connect{margin:0;padding-top:76px}
.connect-k{display:block;padding-bottom:10px;border-bottom:1px solid var(--line-2);font-family:var(--mono);font-size:10.5px;letter-spacing:.14em;text-transform:uppercase;color:var(--ink)}
.connect-cta{display:inline-flex;align-items:center;gap:7px;margin-top:18px;font-family:var(--mono);font-size:11.5px;letter-spacing:.06em;text-transform:uppercase;color:var(--accent);border-bottom:1px solid rgba(155,61,34,.4);padding-bottom:2px;transition:border-color .2s,color .2s}
.connect-cta:hover{border-bottom-color:var(--accent);color:var(--ink)}

.hero-title{font-family:var(--serif);font-weight:600;font-size:clamp(40px,6.2vw,68px);line-height:1.08;letter-spacing:-.015em;color:var(--ink)}
.hero-title em,.title em{font-style:italic;font-weight:400;color:var(--accent)}
.lede{max-width:var(--measure);margin:22px 0 0;color:var(--body);font-size:17.5px;line-height:1.7}
main .cta{display:flex;gap:10px;flex-wrap:wrap;margin-top:28px}
.pill{display:inline-flex;align-items:center;gap:8px;padding:9px 15px;border-radius:2px;border:1px solid var(--line-2);
  font-family:var(--mono);font-size:11.5px;letter-spacing:.08em;text-transform:uppercase;line-height:1;color:var(--ink);
  transition:background .2s,border-color .2s,color .2s}
.pill span{display:inline-block}
.pill.solid{background:var(--ink);border-color:var(--ink);color:var(--bg)}
.pill.solid:hover{background:var(--accent);border-color:var(--accent)}
.pill.ghost:hover{border-color:var(--accent);color:var(--accent)}
.reach{margin:20px 0 0;font-family:var(--mono);font-size:11.5px;letter-spacing:.02em;color:var(--muted)}
.reach a{border-bottom:1px solid var(--line);transition:border-color .2s,color .2s}
.reach a:hover{color:var(--accent);border-bottom-color:var(--accent)}

/* entrances: a short fade, nothing more */
.hero-title .w{display:inline-block;opacity:0;transform:translateY(.12em);
  transition:opacity .7s var(--ease),transform .7s var(--ease);transition-delay:calc(var(--i) * 70ms + 120ms)}
body.loaded .hero-title .w{opacity:1;transform:none}
.hero-in{opacity:0;transform:translateY(8px);transition:opacity .7s var(--ease),transform .7s var(--ease);transition-delay:calc(var(--d) * 70ms + 200ms)}
body.loaded .hero-in{opacity:1;transform:none}

/* ===== Sections ===== */
.block{position:relative;padding:92px 0 68px;border-top:1px solid var(--line)}
.title{font-family:var(--serif);font-weight:600;font-size:clamp(26px,3.2vw,36px);line-height:1.2;letter-spacing:-.01em;color:var(--ink);margin:0 0 36px;max-width:22ch}
.title.big{font-size:clamp(30px,4vw,44px);max-width:18ch}
.title .w{display:inline-block;opacity:0;transform:translateY(.12em);
  transition:opacity .6s var(--ease),transform .6s var(--ease);transition-delay:calc(var(--i) * 45ms)}
.title.in .w{opacity:1;transform:none}
.reveal{opacity:0;transform:translateY(10px);transition:opacity .7s var(--ease),transform .7s var(--ease)}
.reveal.in{opacity:1;transform:none}

.card{background:transparent;border:0}
.chips{display:flex;flex-wrap:wrap;gap:6px 14px;margin:18px 0 0;padding:0}
.chips span{font-family:var(--mono);font-size:10.5px;letter-spacing:.06em;color:var(--muted)}
.chips span::before{content:"· ";opacity:.5}
.chips span:first-child::before{content:""}

/* about */
.about-grid{display:block}
.about-copy p{margin:0 0 16px;color:var(--body);font-size:17px;line-height:1.75;max-width:var(--measure)}
.stats{list-style:none;padding:0;margin:30px 0 0;display:grid;grid-template-columns:repeat(4,1fr);gap:18px 28px}

.stats li{border-top:1px solid var(--line);padding-top:12px;display:flex;flex-direction:column;gap:3px}
.stats strong{font-family:var(--serif);font-weight:600;font-size:28px;line-height:1.1;color:var(--ink);font-variant-numeric:tabular-nums}
.stats span{font-family:var(--mono);font-size:10.5px;letter-spacing:.06em;color:var(--faint);line-height:1.45}


/* experience */
.jobs{list-style:none;padding:0;margin:0}
.job{display:grid;grid-template-columns:minmax(0,1fr) auto;column-gap:36px;padding:26px 0;border-top:1px solid var(--line)}
.job-body{grid-column:1;grid-row:1;min-width:0}
.jobs > .job:first-child{border-top:0;padding-top:0}
.job-meta{grid-column:2;grid-row:1;display:flex;flex-direction:column;align-items:flex-end;text-align:right;gap:5px;font-family:var(--mono);font-size:10.5px;letter-spacing:.08em;text-transform:uppercase;color:var(--faint);padding-top:6px}
.job-meta .num{color:var(--accent);margin-bottom:4px}
.job h3{font-family:var(--serif);font-weight:600;font-size:21px;line-height:1.25;color:var(--ink)}
.job h3 i{font-style:italic;font-weight:400;color:var(--muted)}
.role{font-family:var(--mono);font-size:10.5px;letter-spacing:.08em;text-transform:uppercase;color:var(--muted);margin:6px 0 0}
.job ul{list-style:none;padding:0;margin:16px 0 0;display:grid;gap:11px;color:var(--body);font-size:16px;line-height:1.7;max-width:40em}
.job ul li{position:relative;padding-left:18px}
.job ul li::before{content:"—";position:absolute;left:0;top:0;color:var(--accent);opacity:.6;font-size:13px}
.job b{color:var(--ink);font-weight:600}

/* advisory */
.cards{display:grid;grid-template-columns:repeat(3,1fr);gap:0}
.advisory-intro{max-width:var(--measure);margin:0 0 34px}
.advisory-intro p{margin:0 0 14px;color:var(--body);font-size:17px;line-height:1.75}
.advisory-intro .chips{margin:0}
.ext{color:var(--accent);white-space:nowrap;border-bottom:1px solid rgba(155,61,34,.35);transition:border-color .2s}
.ext:hover{border-bottom-color:var(--accent)}
.proj{padding:22px 28px 22px 0;display:flex;flex-direction:column;border-top:1px solid var(--line);min-height:0}
.proj-head{display:flex;justify-content:space-between;align-items:flex-start;font-family:var(--mono);font-size:10.5px;letter-spacing:.08em;color:var(--faint)}
.proj-head svg{width:22px;height:22px;color:var(--muted);opacity:.7}
.org{margin:18px 0 0;font-family:var(--mono);font-size:10.5px;letter-spacing:.08em;text-transform:uppercase;color:var(--accent)}
.proj h3{font-family:var(--serif);font-weight:600;font-size:19px;line-height:1.25;color:var(--ink);margin:6px 0 8px}
.proj > p:not(.chips):not(.org){margin:0;color:var(--body);font-size:15.5px;line-height:1.7}
.proj .chips{margin-top:auto;padding-top:16px}

/* toolchain pipeline */
.flow{list-style:none;margin:0;padding:0;display:grid;grid-template-columns:repeat(5,minmax(0,1fr));position:relative}
.flow::before{content:"";position:absolute;left:0;right:0;top:4px;height:1px;background:var(--line-2);transform:scaleX(0);transform-origin:left;transition:transform 1.2s var(--ease) .1s}
.flow.in::before{transform:scaleX(1)}
.stage{position:relative;padding:26px 24px 0 0}
.stage::before{content:"";position:absolute;left:0;top:0;width:9px;height:9px;border-radius:50%;background:var(--bg);border:1px solid var(--line-2);box-shadow:0 0 0 4px var(--bg);transition:background .4s,border-color .4s}
.flow.in .stage::before{background:var(--accent);border-color:var(--accent)}
.flow.in .stage:nth-child(1)::before{transition-delay:.2s}.flow.in .stage:nth-child(2)::before{transition-delay:.4s}
.flow.in .stage:nth-child(3)::before{transition-delay:.6s}.flow.in .stage:nth-child(4)::before{transition-delay:.8s}
.flow.in .stage:nth-child(5)::before{transition-delay:1s}
.stage-n{font-family:var(--mono);font-size:10.5px;letter-spacing:.1em;color:var(--accent)}
.stage h3{font-family:var(--serif);font-weight:600;font-size:18px;line-height:1.25;color:var(--ink);margin:8px 0 10px}
.stage-tools{list-style:none;margin:0;padding:0;border-top:1px solid var(--line)}
.stage-tools li{padding:7px 0;border-bottom:1px solid var(--line);font-family:var(--mono);font-size:12px;line-height:1.5;color:var(--body)}
.flow-foot{margin-top:40px;padding-top:18px;border-top:1px solid var(--line);display:flex;flex-wrap:wrap;gap:10px 48px}
.flow-foot p{margin:0;font-family:var(--mono);font-size:12px;line-height:1.7;color:var(--body)}
.ff-k{color:var(--accent);font-size:10.5px;letter-spacing:.1em;text-transform:uppercase;margin-right:12px}

/* papers and education */
.papers{display:grid;grid-template-columns:1.6fr 1fr;gap:56px;align-items:start}
.pubs,.edu{list-style:none;margin:0;padding:0}
.pubs li,.edu li{padding:16px 0;border-top:1px solid var(--line);display:flex;flex-direction:column;gap:5px}
.pubs li:first-child,.edu li:first-child{border-top:0;padding-top:0}
.kind{font-family:var(--mono);font-size:10.5px;letter-spacing:.08em;text-transform:uppercase;color:var(--accent)}
.pubs em,.edu em{font-family:var(--serif);font-style:italic;font-size:17px;line-height:1.35;color:var(--ink)}
.by{color:var(--muted);font-size:14.5px}

/* contact */
.contact{padding-bottom:96px}
.contact-copy{max-width:var(--measure);color:var(--body);font-size:17.5px;line-height:1.7;margin:0}

.foot{position:relative;z-index:1}
.foot-row{display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;border-top:1px solid var(--line);padding-top:20px;padding-bottom:72px;
  font-family:var(--mono);font-size:10.5px;letter-spacing:.08em;text-transform:uppercase;color:var(--faint)}
.visits{display:inline-flex;align-items:center;gap:10px;font-variant-numeric:tabular-nums}
.visits[hidden]{display:none}
.visits b{font-weight:500;color:var(--ink)}
.visits svg{display:block;overflow:visible}
.visits rect{fill:rgba(22,24,28,.2)}
.visits rect.today{fill:var(--accent)}
.visits .vt{opacity:.8}

/* ===== Responsive ===== */
@media (max-width:1180px){.nav{grid-template-columns:1fr auto}.nav nav{display:none}}
@media (max-width:1080px){
  .block > .wrap{grid-template-columns:minmax(0,1fr)}
  .block > .wrap > *{grid-column:1}
  .block > .wrap > .label{grid-column:1;grid-row:auto;text-align:left;padding-top:0;margin:0 0 16px}
  .block > .wrap > .title{grid-row:auto}
  .hero-cols{grid-template-columns:minmax(0,1fr) minmax(0,280px);column-gap:40px}
  .connect{padding-top:64px}
  .cards{grid-template-columns:1fr 1fr}
  .stats{grid-template-columns:repeat(2,1fr)}
  .flow{grid-template-columns:1fr;padding-left:26px}
  .flow::before{left:4px;right:auto;top:0;bottom:0;width:1px;height:auto;transform:scaleY(0);transform-origin:top}
  .flow.in::before{transform:scaleY(1)}
  .stage{padding:0 0 28px}
  .stage::before{left:-26px;top:2px}
  .stage-tools{display:flex;flex-wrap:wrap;gap:4px 14px;border-top:0}
  .stage-tools li{border:0;padding:2px 0;font-size:12px}
  .stage-tools li::before{content:"· ";opacity:.5}
  .stage-tools li:first-child::before{content:""}
  .papers{grid-template-columns:1fr;gap:34px}
}
@media (max-width:860px){
  .hero-cols{grid-template-columns:minmax(0,1fr)}
  .connect{padding-top:32px;max-width:420px}
  .nav{grid-template-columns:1fr auto;padding:14px 20px}
  .nav.scrolled{padding:11px 20px}
  .nav nav{display:none}
  .wrap{padding:0 20px}
  .job{grid-template-columns:1fr;gap:10px}
  .job-body,.job-meta{grid-column:1;grid-row:auto}
  .job-meta{grid-row:auto;flex-direction:row;flex-wrap:wrap;align-items:flex-start;text-align:left;gap:5px 14px;padding-top:0;order:-1}
  .job-meta .num{margin-bottom:0}
  .block{padding:72px 0 56px}
}
@media (max-width:640px){
  .cards{grid-template-columns:1fr}
  .hero{padding:112px 0 72px}
  .lede{font-size:16.5px}
  .title{margin-bottom:28px}
  .nav-contact{font-size:11px}
  .nav-contact span i,.nav-contact span a:last-child{display:none}
  .stats{gap:18px 16px}
}
@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}
  .reveal,.title .w,.hero-title .w,.hero-in{opacity:1!important;transform:none!important;transition:none!important}
}

/* ===== Human / Machine switch (matches parallel.ai) ===== */
.mode-switch{position:fixed;left:50%;bottom:24px;transform:translateX(-50%);z-index:40;display:flex;align-items:center;gap:8px;
  font-family:var(--mono);font-size:12px;line-height:16px;color:var(--ink);animation:ms-in .6s cubic-bezier(.2,.7,.2,1) both}
@keyframes ms-in{from{opacity:0;transform:translate(-50%,12px)}to{opacity:1;transform:translate(-50%,0)}}
.ms-chip{display:flex;align-items:center;gap:14px;padding:6px 10px;border-radius:3px;background:rgba(250,248,244,.94);
  backdrop-filter:blur(8px);-webkit-backdrop-filter:blur(8px);border:1px solid var(--line-2);color:var(--ink);font:inherit}
.ms-chip button{appearance:none;background:none;border:0;padding:0;color:inherit;font:inherit;cursor:pointer;display:inline-flex;align-items:center;gap:8px;text-transform:uppercase}
.ms-chip button i{width:6px;height:6px;margin:0 0 1px 2px;border-radius:50%;outline:1px solid currentColor;outline-offset:1px;background:transparent;transition:background .15s}
.ms-chip button[aria-checked="true"] i{background:currentColor}
.ms-chip button:focus-visible,.ms-keys:focus-visible{outline:1px solid var(--ink);outline-offset:3px}
.ms-keys{gap:6px;cursor:pointer;transition:opacity .15s}
.ms-keys:hover{opacity:.8}
.ms-keys kbd{font:inherit}
.ms-keys .sep{color:var(--faint)}
@media (max-width:720px){.ms-keys{display:none}.mode-switch{bottom:16px}}

/* ===== Machine view (matches parallel.ai /ai) ===== */
body.is-machine{background:#101010;color:#f6f6f6}
body.is-machine > :not(.machine):not(.mode-switch):not(script){display:none!important}
.machine{--m-fg:#f6f6f6;--m-rule:#434343;--m-bg:#101010;background:var(--m-bg);color:var(--m-fg);min-height:100vh;padding:16px 48px 120px;
  font-family:var(--mono);font-size:13px;line-height:16px;font-weight:400;letter-spacing:0;animation:m-in .25s ease both}
@keyframes m-in{from{opacity:0}to{opacity:1}}
.m-col{max-width:640px;margin:0 auto;display:grid;gap:8px}
.m-sec{border-left:1px solid var(--m-rule);border-right:1px solid var(--m-rule);padding:8px 24px 40px;min-width:0}
.m-line{display:block;white-space:pre-wrap;overflow-wrap:anywhere}
.m-line.in{padding-left:8px}
.m-line.dim{opacity:.5}
.m-h{font:inherit;font-weight:400;margin:0;color:var(--m-fg)}
h2.m-h,h1.m-h{text-transform:none}
.m-p{margin:16px 0 0;white-space:pre-wrap}
.m-sec > .m-h + *{margin-top:0}
.m-group{margin-top:16px}
.m-item{margin-top:16px}
.m-group > .m-item{margin-top:16px}
.m-group > .m-line.dim:last-child{margin-top:16px}
.m-link{color:var(--m-fg);text-decoration:none}
.m-link .u{opacity:.5;transition:opacity .15s}
.m-link:hover{text-decoration:underline;text-decoration-color:#ff5a1f;text-underline-offset:2px}
.m-link:hover .u{opacity:.8}
.m-ctas{display:flex;flex-direction:column;align-items:flex-start;gap:8px;margin-top:16px}
.m-link.cta{background:#e6e6e6;color:#101010;padding:0 2px;max-width:100%;overflow-wrap:anywhere}
.m-link.cta .u{opacity:.55}
.m-table{border-collapse:collapse;margin-top:16px;width:100%;font:inherit}
.m-table th{font-weight:600;text-align:left;padding:0 16px 0 0;white-space:nowrap}
.m-table td{padding:0 16px 0 0;vertical-align:top}
.m-table .r{text-align:right}
.m-table th:last-child,.m-table td:last-child{padding-right:0}
.m-copy{position:fixed;top:24px;right:40px;z-index:41;width:28px;height:28px;display:grid;place-items:center;border:0;border-radius:4px;
  background:transparent;color:#a8a8a8;cursor:pointer;transition:color .15s,background .15s}
.m-copy:hover{color:#fff;background:rgba(80,80,80,.3)}
.m-copy .i-done{display:none}
.m-copy.done .i-copy{display:none}.m-copy.done .i-done{display:block;color:#fff}
.machine ::selection{background:#f6f6f6;color:#101010}
@media (max-width:720px){.machine{padding:12px 16px 100px}.m-sec{padding:4px 12px}.m-copy{top:10px;right:10px}.m-table th,.m-table td{padding-right:10px}}
@media (prefers-reduced-motion:reduce){.mode-switch,.machine{animation:none}}