/* ============ tokens ============ */
:root{
  --paper:#F7F6F1;
  --ink:#131D18;
  --mask:#0B6E4F;      /* soldermask green */
  --copper:#B4633A;    /* copper accent, used sparingly */
  --grid:#DFE3DC;
  --dim:#5A6660;
  --maxw:1080px;
}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
@media (prefers-reduced-motion:reduce){html{scroll-behavior:auto} *{transition:none!important;animation:none!important}}
body{
  background:var(--paper);color:var(--ink);
  font:400 17px/1.65 "IBM Plex Sans",system-ui,sans-serif;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
img{max-width:100%;display:block;background:var(--grid)}
a{color:inherit}
.wrap{max-width:var(--maxw);margin:0 auto;padding:0 24px}

/* ============ type ============ */
h1,h2,h3{font-family:"Archivo",sans-serif;line-height:1.05;letter-spacing:-.01em;overflow-wrap:break-word}
h1{font-weight:800;font-size:clamp(2.4rem,6vw,4.6rem);text-transform:uppercase}
h2{font-weight:800;font-size:clamp(1.5rem,3vw,2.1rem)}
h3{font-weight:700;font-size:1.1rem}
.mono{font-family:"IBM Plex Mono",monospace;font-size:.78rem;letter-spacing:.08em;text-transform:uppercase}
.eyebrow{color:var(--mask)}
.dim{color:var(--dim)}

/* ============ nav / footer ============ */
nav{border-bottom:1px solid var(--grid)}
nav .wrap{display:flex;justify-content:space-between;align-items:center;height:64px}
nav a{text-decoration:none}
nav .links a{margin-left:24px;font-family:"IBM Plex Mono",monospace;font-size:.8rem;letter-spacing:.06em;text-transform:uppercase;border-bottom:2px solid transparent;padding-bottom:2px}
nav .links a:hover,nav .links a[aria-current]{border-color:var(--mask)}
footer{border-top:1px solid var(--grid);margin-top:96px;padding:40px 0}
footer .wrap{display:flex;flex-wrap:wrap;gap:16px;justify-content:space-between;align-items:center}

/* signature: pcb trace divider */
.trace{display:block;width:100%;max-width:var(--maxw);height:28px;margin:8px auto;padding:0 24px;box-sizing:border-box}
.trace polyline{fill:none;stroke:var(--mask);stroke-width:2}
.trace circle{fill:var(--copper)}

/* ============ cover ============ */
.hero{padding:88px 0 40px}
.hero p.lede{max-width:56ch;margin-top:20px;font-size:1.15rem}
.contact-row{display:flex;flex-wrap:wrap;gap:20px;margin-top:28px}
.contact-row a{font-family:"IBM Plex Mono",monospace;font-size:.85rem;text-decoration:none;border-bottom:1px solid var(--ink)}
.contact-row a:hover{color:var(--mask);border-color:var(--mask)}

/* ============ featured cards ============ */
.section-head{display:flex;justify-content:space-between;align-items:baseline;margin:64px 0 24px}
.card{display:grid;grid-template-columns:7fr 5fr;gap:0;border:1px solid var(--ink);margin-bottom:32px;text-decoration:none;background:#fff}
.card:nth-of-type(even){grid-template-columns:5fr 7fr}
.card:nth-of-type(even) .card-img{order:2}
.card-img{aspect-ratio:3/2;overflow:hidden}
.card-img img{width:100%;height:100%;object-fit:cover;transition:transform .4s ease}
.card:hover .card-img img{transform:scale(1.03)}
.card-body{padding:28px;display:flex;flex-direction:column;gap:12px;justify-content:center}
.card-body .outcome{font-size:.95rem}
.tags{display:flex;flex-wrap:wrap;gap:8px}
.tag{font-family:"IBM Plex Mono",monospace;font-size:.7rem;letter-spacing:.06em;text-transform:uppercase;border:1px solid var(--grid);padding:3px 8px;border-radius:2px;background:var(--paper)}
.card .more{color:var(--copper);font-family:"IBM Plex Mono",monospace;font-size:.8rem}

/* ============ archive ============ */
.filters{display:flex;flex-wrap:wrap;gap:10px;margin:24px 0 36px}
.filters button{font-family:"IBM Plex Mono",monospace;font-size:.75rem;letter-spacing:.06em;text-transform:uppercase;padding:8px 14px;border:1px solid var(--ink);background:#fff;cursor:pointer;border-radius:2px}
.filters button[aria-pressed="true"]{background:var(--mask);border-color:var(--mask);color:#fff}
.filters button:focus-visible{outline:2px solid var(--copper);outline-offset:2px}
.grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(300px,1fr));gap:28px}
.tile{border:1px solid var(--ink);background:#fff;text-decoration:none;display:flex;flex-direction:column}
.tile .card-img{aspect-ratio:16/10}
.tile .card-body{padding:20px;gap:10px}
.tile.hidden{display:none}

/* ============ project pages ============ */
.proj-head{padding:64px 0 16px}
.proj-head .outcome{font-size:1.2rem;max-width:60ch;margin-top:18px}
figure{margin:0 0 12px}
figure img{width:100%;aspect-ratio:16/9;object-fit:cover;border:1px solid var(--ink)}
figcaption{font-family:"IBM Plex Mono",monospace;font-size:.75rem;color:var(--dim);padding-top:8px}
.proj-layout{display:grid;grid-template-columns:2fr 1fr;gap:48px;margin-top:40px}
.spec{border:1px solid var(--ink);background:#fff;padding:22px;align-self:start;position:sticky;top:24px}
.spec dt{font-family:"IBM Plex Mono",monospace;font-size:.7rem;letter-spacing:.08em;text-transform:uppercase;color:var(--mask);margin-top:14px}
.spec dt:first-child{margin-top:0}
.spec dd{font-size:.92rem}
.prose h2{margin:40px 0 14px}
.prose h2:first-child{margin-top:0}
.prose p{margin-bottom:14px;max-width:66ch}
.prose ul{margin:0 0 14px 20px}
.prose li{margin-bottom:6px}
.prose li strong{color:var(--mask)}
.fig-grid{display:grid;grid-template-columns:1fr 1fr;gap:20px;margin:24px 0}
details{border:1px solid var(--grid);background:#fff;margin-top:32px}
details summary{cursor:pointer;padding:16px 22px;font-family:"IBM Plex Mono",monospace;font-size:.85rem;letter-spacing:.06em;text-transform:uppercase}
details[open] summary{border-bottom:1px solid var(--grid)}
details .inner{padding:22px}
.pager{display:flex;justify-content:space-between;margin-top:64px;gap:16px}
.amp{font-family:"Archivo",sans-serif;font-style:italic;font-weight:800}
.pager a{font-family:"IBM Plex Mono",monospace;font-size:.85rem;text-decoration:none;border-bottom:1px solid var(--ink)}
.pager a:hover{color:var(--mask);border-color:var(--mask)}

@media (max-width:820px){
  .card,.card:nth-of-type(even){grid-template-columns:1fr}
  .card:nth-of-type(even) .card-img{order:0}
  .proj-layout{grid-template-columns:1fr}
  .spec{position:static}
  .fig-grid{grid-template-columns:1fr}
}