/* ==========================================================================
   Alfonso Martin Burrows: one accent, hairline rules, a 12-column grid.
   ========================================================================== */

:root{
  --bg:#f5f4f0;
  --surface:#efeee9;
  --ink:#121211;
  --ink-2:#3b3a37;
  --muted:#6f6d67;
  --faint:#a19f98;
  --line:rgba(18,18,17,.13);
  --line-soft:rgba(18,18,17,.07);
  --accent:#d6461d;
  --accent-wash:rgba(214,70,29,.08);
  --sel:rgba(214,70,29,.18);

  --serif:"Newsreader",ui-serif,Georgia,serif;
  --sans:"Inter",ui-sans-serif,system-ui,-apple-system,"Segoe UI",sans-serif;
  --mono:"IBM Plex Mono",ui-monospace,"SF Mono",Menlo,monospace;

  --ease:cubic-bezier(.16,1,.3,1);
  --gutter:clamp(20px,4vw,48px);
  --col-gap:clamp(16px,2vw,24px);
  --section:clamp(88px,12vw,168px);
  color-scheme:light;
}
@media (prefers-color-scheme:dark){
  :root{
    --bg:#0f0f0e;
    --surface:#171715;
    --ink:#ecebe6;
    --ink-2:#c9c7c0;
    --muted:#8f8d86;
    --faint:#5f5d58;
    --line:rgba(236,235,230,.13);
    --line-soft:rgba(236,235,230,.06);
    --accent:#f0683f;
    --accent-wash:rgba(240,104,63,.1);
    --sel:rgba(240,104,63,.28);
    color-scheme:dark;
  }
}

/* ---------- base ---------- */
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth;scroll-padding-top:96px;-webkit-text-size-adjust:100%;text-size-adjust:100%}
body{
  margin:0;background:var(--bg);color:var(--ink);
  font:400 16px/1.6 var(--sans);
  font-optical-sizing:auto;
  font-feature-settings:"cv11","ss01","ss03";
  -webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;
  text-rendering:optimizeLegibility;
}
::selection{background:var(--sel);color:var(--ink)}
a{color:inherit;text-decoration:none}
h1,h2,h3,p,ol,ul,dl,dd,figure{margin:0}
ol,ul{padding:0;list-style:none}
button{font:inherit;color:inherit;background:none;border:0;padding:0;cursor:pointer}
svg{display:block}
:focus-visible{outline:1.5px solid var(--accent);outline-offset:4px;border-radius:2px}
.sr-only{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap}
.skip{position:absolute;left:-999px;top:12px;z-index:60;background:var(--ink);color:var(--bg);padding:10px 16px;font-size:14px}
.skip:focus{left:12px}

.wrap{
  max-width:1320px;margin:0 auto;
  padding-left:max(var(--gutter),env(safe-area-inset-left));
  padding-right:max(var(--gutter),env(safe-area-inset-right));
}

/* small caps label used throughout */
.eyebrow,.kicker,.num,.section-label p,.facts dt,.spec dt,.when,.caps dt,figcaption,.i-year,.i-meta,.index-h{
  font:400 12px/1.5 var(--mono);letter-spacing:.02em;
}

/* underline links: hairline that thickens toward the accent on hover */
.ul{
  background:linear-gradient(currentColor,currentColor) 0 100%/100% 1px no-repeat;
  padding-bottom:1px;
  transition:color .3s var(--ease),background-size .3s var(--ease);
}
.ul:hover{color:var(--accent);background-image:linear-gradient(var(--accent),var(--accent))}
.link-quiet{color:var(--muted);transition:color .25s var(--ease)}
.link-quiet:hover{color:var(--ink)}

/* ---------- header ---------- */
.topbar{
  position:sticky;top:0;z-index:30;
  background:color-mix(in srgb,var(--bg) 82%,transparent);
  backdrop-filter:saturate(1.4) blur(16px);-webkit-backdrop-filter:saturate(1.4) blur(16px);
  border-bottom:1px solid transparent;
  transition:border-color .4s var(--ease);
}
.topbar.scrolled{border-bottom-color:var(--line)}
.bar{display:grid;grid-template-columns:1fr auto 1fr;align-items:center;height:68px;gap:24px}
.wordmark{font:500 15px/1 var(--sans);letter-spacing:-.01em;white-space:nowrap}
nav{display:flex;gap:clamp(20px,3vw,40px);font-size:14px}
nav a{color:var(--muted);transition:color .25s var(--ease);display:flex;gap:6px;align-items:baseline}
nav a span{font:400 10.5px var(--mono);color:var(--faint);transition:color .25s var(--ease)}
nav a:hover,nav a[aria-current="true"]{color:var(--ink)}
nav a[aria-current="true"] span{color:var(--accent)}
.bar-actions{display:flex;align-items:center;justify-content:flex-end;gap:24px;font-size:14px}

.btn{
  display:inline-flex;align-items:center;height:36px;padding:0 16px;
  background:var(--ink);color:var(--bg);
  font:500 13.5px/1 var(--sans);letter-spacing:-.005em;border-radius:999px;
  transition:background-color .3s var(--ease),transform .3s var(--ease);
}
.btn:hover{background:var(--accent)}
.btn:active{transform:scale(.97)}

/* ---------- hero ---------- */
.hero{padding-top:clamp(72px,11vw,148px);padding-bottom:clamp(72px,9vw,120px)}
.kicker{display:flex;align-items:center;gap:10px;color:var(--muted)}
.status{position:relative;width:7px;height:7px;border-radius:50%;background:var(--accent)}
.status::after{content:"";position:absolute;inset:-4px;border-radius:50%;border:1px solid var(--accent);opacity:0;animation:halo 2.8s var(--ease) infinite}
@keyframes halo{0%{transform:scale(.4);opacity:.9}70%,100%{transform:scale(1.6);opacity:0}}

h1{
  margin:clamp(28px,4vw,44px) 0 0;
  font:300 clamp(56px,11.2vw,168px)/.9 var(--serif);
  letter-spacing:-.045em;
  font-variation-settings:"opsz" 72;
  margin-left:-.05em; /* optical alignment of the A's left side bearing */
}
h1 em{font-style:italic;font-weight:300;letter-spacing:-.035em;color:var(--ink-2)}

.hero-foot{
  display:grid;grid-template-columns:repeat(12,minmax(0,1fr));gap:var(--col-gap);
  margin-top:clamp(48px,7vw,96px);padding-top:24px;border-top:1px solid var(--line);
}
.statement{
  grid-column:1 / span 5;
  font:400 clamp(20px,1.9vw,25px)/1.38 var(--serif);letter-spacing:-.012em;
  color:var(--ink);text-wrap:pretty;
}
.facts{grid-column:7 / -1;display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:var(--col-gap)}
.facts dt{color:var(--faint);margin-bottom:8px}
.facts dd{font-size:14.5px;line-height:1.55;color:var(--ink-2)}
.clock{font-feature-settings:"tnum";color:var(--muted)}

/* ---------- sections ---------- */
.section{
  display:grid;grid-template-columns:repeat(12,minmax(0,1fr));gap:var(--col-gap);
  padding-top:28px;padding-bottom:var(--section);
  position:relative;
}
/* rules sit inside the gutters, aligned to the grid rather than the viewport */
.section::before{content:"";position:absolute;top:0;left:max(var(--gutter),env(safe-area-inset-left));right:max(var(--gutter),env(safe-area-inset-right));height:1px;background:var(--line)}
.section-label{grid-column:1 / span 3;align-self:start;position:sticky;top:100px}
.num{display:block;color:var(--accent);margin-bottom:10px}
h2{font:400 clamp(26px,2.4vw,32px)/1.1 var(--serif);letter-spacing:-.02em}
.section-label p{margin-top:14px;color:var(--muted);max-width:22ch}
.section-body{grid-column:4 / -1}

/* ---------- projects ---------- */
.project{
  display:grid;grid-template-columns:repeat(9,minmax(0,1fr));gap:var(--col-gap);
  padding-bottom:clamp(56px,7vw,96px);
}
.project + .project{padding-top:clamp(56px,7vw,96px);border-top:1px solid var(--line-soft)}
.plate{grid-column:1 / span 5}
.plate svg{
  width:100%;height:auto;aspect-ratio:8/5;
  background:var(--surface);
  border-radius:3px;
  transition:background-color .5s var(--ease);
}
.project:hover .plate svg{background:color-mix(in srgb,var(--surface) 70%,var(--accent-wash))}
figcaption{display:flex;gap:12px;margin-top:12px;color:var(--muted)}
figcaption span{color:var(--faint)}

.project-copy{grid-column:6 / -1;display:flex;flex-direction:column;padding-top:2px}
.eyebrow{display:flex;align-items:center;gap:12px;color:var(--muted)}
.live{display:inline-flex;align-items:center;gap:6px;color:var(--accent)}
.live::before{content:"";width:5px;height:5px;border-radius:50%;background:currentColor}
.project h3{margin:18px 0 16px;font:400 clamp(32px,3.4vw,46px)/1 var(--serif);letter-spacing:-.03em}
.project h3 a{transition:color .3s var(--ease)}
.project h3 a::after{
  content:"↗";display:inline-block;margin-left:.18em;font:300 .5em/1 var(--sans);vertical-align:.7em;color:var(--faint);
  transition:transform .4s var(--ease),color .3s var(--ease);
}
.project h3 a:hover{color:var(--accent)}
.project h3 a:hover::after{transform:translate(2px,-2px);color:var(--accent)}
.project-copy > p:not(.eyebrow){color:var(--ink-2);font-size:16px;line-height:1.62;max-width:46ch;text-wrap:pretty}

.spec{margin-top:auto;padding-top:32px}
.spec div{display:grid;grid-template-columns:72px 1fr;gap:16px;padding:11px 0;border-top:1px solid var(--line-soft);font-size:14px}
.spec div:last-child{border-bottom:1px solid var(--line-soft)}
.spec dt{color:var(--faint);line-height:1.6}
.spec dd{color:var(--ink-2)}

/* plates (diagrams) */
.plate .ax path{fill:none;stroke:var(--line);stroke-width:1}
.plate .ax .grid{stroke:var(--line-soft);stroke-dasharray:2 4}
.plate .trace{fill:none;stroke:var(--ink);stroke-width:1.75;stroke-linejoin:round;stroke-linecap:round}
.plate .trace-2{fill:none;stroke:var(--faint);stroke-width:1.25;stroke-linejoin:round;stroke-linecap:round}
.plate .area{fill:var(--line-soft)}
.plate .cp{fill:none;stroke:var(--accent);stroke-width:1;stroke-dasharray:4 4}
.plate .flag{fill:var(--accent-wash);stroke:var(--accent);stroke-width:1;stroke-dasharray:3 3}
.plate .pt circle{fill:var(--bg);stroke:var(--ink);stroke-width:1.5}
.plate .pt path{stroke:var(--line);stroke-dasharray:2 3}
.plate .pt.sig circle{fill:var(--accent);stroke:none}
.plate .pt.sig path{stroke:var(--accent);opacity:.5}
.plate text{font:400 11px var(--mono);letter-spacing:.02em}
.plate .tk text{fill:var(--faint)}
.plate .lbl text{fill:var(--muted)}
.plate .lbl text.it{font:italic 400 22px var(--serif);fill:var(--ink-2)}
.plate text.sig{fill:var(--accent)}

/* path drawing: paths carry pathLength="1" */
.js .reveal .draw{stroke-dasharray:1;stroke-dashoffset:1}
.js .reveal.in .draw{stroke-dashoffset:0;transition:stroke-dashoffset 2.2s var(--ease) .25s}
.js .reveal.in .trace-2.draw{transition-delay:.1s}

/* secondary index */
.index{padding-top:clamp(56px,7vw,96px);border-top:1px solid var(--line-soft)}
.index-h{font-weight:400;color:var(--faint);margin-bottom:20px}
.index li{
  display:grid;grid-template-columns:minmax(0,2.2fr) minmax(0,4fr) minmax(0,2fr) 48px;gap:var(--col-gap);
  align-items:baseline;padding:20px 0;border-top:1px solid var(--line);
}
.index li:last-child{border-bottom:1px solid var(--line)}
.i-name{font:400 21px/1.25 var(--serif);letter-spacing:-.015em}
.i-desc{font-size:14.5px;line-height:1.55;color:var(--muted);text-wrap:pretty}
.i-meta{color:var(--muted)}
.i-year{color:var(--faint);text-align:right;font-feature-settings:"tnum"}

/* ---------- experience ---------- */
.roles li{
  display:grid;grid-template-columns:minmax(0,2fr) minmax(0,2.4fr) minmax(0,4.6fr);gap:var(--col-gap);
  padding:24px 0 28px;border-top:1px solid var(--line);
}
.roles li:first-child{border-top:0;padding-top:4px}
.when{color:var(--muted);font-feature-settings:"tnum";padding-top:5px;white-space:nowrap}
.roles h3{font:400 21px/1.25 var(--serif);letter-spacing:-.015em}
.org{margin-top:4px;font-size:14px;color:var(--muted)}
.what{font-size:15px;line-height:1.62;color:var(--ink-2);max-width:56ch;text-wrap:pretty}

/* ---------- capabilities ---------- */
.caps{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:var(--col-gap)}
.caps div{padding-top:4px}
.caps dt{color:var(--faint);margin-bottom:14px}
.caps dd{font:400 19px/1.55 var(--serif);letter-spacing:-.01em;color:var(--ink)}

/* ---------- contact ---------- */
.contact{padding-bottom:clamp(96px,12vw,160px)}
.contact-lead{font:400 clamp(20px,1.9vw,25px)/1.38 var(--serif);letter-spacing:-.012em;max-width:30ch;color:var(--ink-2);text-wrap:pretty}
.mail{display:flex;align-items:baseline;flex-wrap:wrap;gap:12px 24px;margin-top:clamp(36px,5vw,56px)}
.mail-link{
  font:300 clamp(30px,5.4vw,76px)/1.05 var(--serif);letter-spacing:-.04em;
  background:linear-gradient(var(--accent),var(--accent)) 0 100%/0 1.5px no-repeat;
  padding-bottom:.06em;overflow-wrap:anywhere;
  transition:background-size .7s var(--ease),color .4s var(--ease);
}
.mail-link:hover{background-size:100% 1.5px;color:var(--accent)}
.copy{
  font:400 12px var(--mono);color:var(--muted);
  border:1px solid var(--line);border-radius:999px;height:30px;padding:0 14px;
  transition:color .25s var(--ease),border-color .25s var(--ease);
}
.copy:hover{color:var(--ink);border-color:var(--ink)}
.copy.done{color:var(--accent);border-color:var(--accent)}
.contact-links{display:flex;flex-wrap:wrap;gap:12px 36px;margin-top:40px;font-size:15px}
.contact-links small{font:400 10.5px var(--mono);color:var(--faint);margin-left:4px;vertical-align:1px}

/* ---------- footer ---------- */
.foot{
  display:grid;grid-template-columns:repeat(12,minmax(0,1fr));gap:var(--col-gap);align-items:baseline;
  padding-top:24px;padding-bottom:max(32px,env(safe-area-inset-bottom));
  font-size:13px;color:var(--muted);position:relative;
}
.foot::before{content:"";position:absolute;top:0;left:max(var(--gutter),env(safe-area-inset-left));right:max(var(--gutter),env(safe-area-inset-right));height:1px;background:var(--line)}
.foot p:first-child{grid-column:1 / span 3}
.foot .link-quiet{grid-column:10 / -1;justify-self:end}

/* ---------- motion ---------- */
.js .rise{opacity:0;transform:translateY(14px);animation:rise 1.1s var(--ease) forwards;animation-delay:calc(var(--d) * 90ms + 80ms)}
@keyframes rise{to{opacity:1;transform:none}}
.js .reveal{opacity:0;transform:translateY(16px);transition:opacity 1s var(--ease),transform 1s var(--ease)}
.js .reveal.in{opacity:1;transform:none}

/* ---------- responsive ---------- */
@media (max-width:1080px){
  .bar{grid-template-columns:auto 1fr auto}
  nav{justify-content:center}
  .statement{grid-column:1 / span 6}
  .facts{grid-column:7 / -1;grid-template-columns:repeat(2,minmax(0,1fr))}
  .facts div:last-child{display:none}
  .section-label{grid-column:1 / -1;position:static;display:flex;align-items:baseline;gap:14px;margin-bottom:clamp(32px,5vw,48px)}
  .num{margin:0}
  .section-label p{margin:0 0 0 auto;text-align:right}
  .section-body{grid-column:1 / -1}
  .project{grid-template-columns:repeat(12,minmax(0,1fr))}
  .plate{grid-column:1 / span 7}
  .project-copy{grid-column:8 / -1}
}
@media (max-width:820px){
  nav{display:none}
  .bar{grid-template-columns:1fr auto}
  .hero-foot{grid-template-columns:1fr;gap:40px}
  .statement,.facts{grid-column:1 / -1}
  .facts{grid-template-columns:repeat(3,minmax(0,1fr))}
  .facts div:last-child{display:block}
  .project{grid-template-columns:1fr;gap:28px}
  .plate,.project-copy{grid-column:1 / -1}
  .spec{padding-top:28px}
  .index li{grid-template-columns:1fr auto;gap:6px 16px}
  .i-name{grid-column:1}
  .i-year{grid-column:2;grid-row:1}
  .i-desc,.i-meta{grid-column:1 / -1}
  .roles li{grid-template-columns:1fr;gap:6px}
  .when{padding:0;order:-1}
  .what{margin-top:8px}
  .caps{grid-template-columns:repeat(2,minmax(0,1fr));row-gap:36px}
  .foot{grid-template-columns:1fr auto;row-gap:8px}
  .foot p:first-child{grid-column:1}
  .foot .link-quiet{grid-column:2;grid-row:1}

}
@media (max-width:560px){
  .wordmark{font-size:14px}
  .bar-actions{gap:16px}
  .bar-actions .link-quiet{display:none}
  .facts{grid-template-columns:1fr 1fr;row-gap:24px}
  .section-label p{display:none}
  .caps dd{font-size:17px}
  .plate text{font-size:16px}
  .plate .tk text:nth-child(even){display:none}
  .contact-links{gap:12px 28px}
}

@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}
  *,*::before,*::after{animation:none!important;transition:none!important}
  .js .rise,.js .reveal{opacity:1;transform:none}
  .js .reveal .draw{stroke-dashoffset:0}
}

@media print{
  .topbar,.copy,.skip{display:none}
  .js .rise,.js .reveal{opacity:1;transform:none}
  .js .reveal .draw{stroke-dashoffset:0}
  .section{break-inside:avoid-page;padding-bottom:48px}
}