/* cadgent.css — the single design system for the preview site.
   Light Teenage-Engineering: warm paper, flat accents as functional status
   coding, mono for hard data. Linked by every page (index / design / family /
   notes); nothing here is duplicated inline. See DESIGN.md. */

:root {
  --paper:#f4f0e6; --surface:#fbf8f0; --ink:#1c1a16; --ink-soft:#6f6857;
  --line:#e0d9c8; --well:#e7e1d2;
  --orange:#f0531c; --yellow:#e8a200; --green:#1f9e5a; --red:#e23b2e; --blue:#2f6df0;
  --font-display:"Space Grotesk", -apple-system, system-ui, sans-serif;
  --font-mono: ui-monospace, "SF Mono", Menlo, monospace;
  --ease-out: cubic-bezier(0.22, 1, 0.36, 1);
}
* { box-sizing: border-box; }
html, body { margin:0; padding:0; background:var(--paper); color:var(--ink);
  font:15px/1.55 -apple-system, BlinkMacSystemFont, "Segoe UI", system-ui, sans-serif;
  -webkit-font-smoothing:antialiased; }
body { padding: max(22px, env(safe-area-inset-top)) 22px max(28px, env(safe-area-inset-bottom));
  border-top:4px solid var(--orange); }
a { color:inherit; }

/* ---- layout ---- */
.wide { width:100%; max-width:1180px; margin:0 auto; }
.measure { max-width:68ch; }

/* ---- masthead (index / notes) ---- */
.wordmark { font:700 30px/1 var(--font-display); letter-spacing:-0.02em; margin:0 0 9px;
  display:flex; align-items:baseline; color:var(--ink); text-decoration:none; }
.wordmark .dot { color:var(--orange); padding:0 .26em; }
.wordmark .sub { color:var(--ink-soft); font-weight:500; }
a.wordmark:hover .sub { color:var(--orange); }
.topbar { display:flex; align-items:baseline; justify-content:space-between; gap:16px;
  flex-wrap:wrap; margin-bottom:9px; }
.topbar .wordmark { margin-bottom:0; }
.notes-link { font:600 11px/1 var(--font-display); text-transform:uppercase; letter-spacing:0.1em;
  color:var(--ink-soft); text-decoration:none; white-space:nowrap; }
.notes-link:hover { color:var(--orange); }
.lede { color:var(--ink-soft); font-size:14.5px; max-width:58ch; }
header.wide { margin-bottom:34px; }

/* ---- breadcrumb header (design / family) ---- */
.crumb { font:500 12px/1 var(--font-mono); color:var(--orange); text-decoration:none;
  display:inline-block; margin-bottom:12px; }
.crumb:hover { text-decoration:underline; }
.crumb-sep { color:var(--ink-soft); padding:0 5px; }
h1 { font:700 26px/1.2 var(--font-display); margin:0 0 6px; letter-spacing:-0.01em;
  overflow-wrap:anywhere; }
.sub { color:var(--ink-soft); font-size:14px; max-width:64ch; }
.design-meta { margin:12px 0 0; display:flex; flex-wrap:wrap; gap:7px; align-items:center; }
.design-meta .status-note { width:100%; color:var(--ink-soft); font-size:13px; line-height:1.45;
  margin-top:3px; max-width:64ch; }
/* data-driven Field Note backlink on a design/family page */
.notenote { margin:14px 0 0; }
.notenote a { display:inline-flex; align-items:center; gap:8px; text-decoration:none;
  font:600 12px/1 var(--font-display); color:var(--paper); background:var(--ink);
  border-radius:8px; padding:9px 13px; transition:background .15s var(--ease-out); }
.notenote a:hover { background:var(--orange); }
.notenote a .k { font:500 10px/1 var(--font-mono); text-transform:uppercase; letter-spacing:0.08em;
  opacity:.7; }

/* ---- sections ---- */
.section { margin-bottom:34px; }
.section-title { font:600 11px/1 var(--font-display); text-transform:uppercase; letter-spacing:0.12em;
  color:var(--ink-soft); margin:0 0 15px; display:flex; align-items:center; gap:9px; }
.section-title::before { content:""; width:18px; height:3px; border-radius:1px; background:var(--orange);
  flex:0 0 auto; }

/* ---- grid + cards (index / family) ---- */
.grid { display:grid; gap:18px; grid-template-columns:repeat(auto-fill, minmax(260px,1fr)); }
@media (min-width:700px){ .grid { grid-template-columns:repeat(auto-fit, minmax(300px,360px));
  justify-content:center; } }
.card { background:var(--surface); border:1px solid var(--line); border-radius:12px; overflow:hidden;
  text-decoration:none; color:var(--ink); display:flex; flex-direction:column;
  transition:border-color .16s var(--ease-out), transform .16s var(--ease-out); }
.card:hover { border-color:var(--orange); transform:translateY(-2px); }
.card:hover h2 { color:var(--orange); }
.card:focus-visible { outline:2px solid var(--orange); outline-offset:3px; }
.card .thumb-wrap { position:relative; display:block; }
.card .thumb { width:100%; aspect-ratio:4/3; object-fit:contain; padding:14px; background:var(--well);
  border-bottom:1px solid var(--line); display:block; }
.card .thumb.empty { padding:0;
  background:repeating-linear-gradient(45deg, #ece6d8, #ece6d8 8px, #e3dcca 8px, #e3dcca 16px); }
.card .card3d { position:absolute; left:10px; bottom:11px; display:inline-flex; align-items:center; gap:5px;
  font:600 10px/1 var(--font-mono); letter-spacing:0.06em; color:var(--paper);
  background:rgba(28,26,22,0.78); border-radius:6px; padding:4px 7px; pointer-events:none;
  transition:background .16s var(--ease-out); }
.card:hover .card3d { background:var(--orange); }
.card .body { padding:15px 16px; display:flex; flex-direction:column; gap:8px; }
.card h2 { font:700 16px/1.25 var(--font-display); margin:0; padding:0; border:0; letter-spacing:-0.01em;
  overflow-wrap:anywhere; }            /* titles WRAP, never truncate */
.card .tagline { color:var(--ink-soft); font-size:13px; line-height:1.45; }   /* no clamp: never cropped */
.card .meta { color:var(--ink-soft); font:12px/1 var(--font-mono); font-variant-numeric:tabular-nums; }
.card .chips { display:flex; flex-wrap:wrap; gap:6px; margin-top:2px; }
.card .status-note { color:var(--ink-soft); font-size:12px; line-height:1.4; }  /* no clamp */

/* ---- chips: status = function ---- */
.chip { display:inline-flex; align-items:center; border-radius:6px; padding:3px 8px;
  font:700 10.5px/1 var(--font-display); text-transform:uppercase; letter-spacing:0.05em; white-space:nowrap; }
.chip.ver { font-family:var(--font-mono); font-weight:500; text-transform:none; letter-spacing:0;
  background:var(--blue); border:1.5px solid var(--blue); color:var(--paper); padding:2px 7px;
  font-variant-numeric:tabular-nums; }
.chip.ok,  .chip.status.ok   { background:var(--green);  color:var(--paper); }
.chip.warn,.chip.status.warn { background:var(--yellow); color:var(--ink); }
.chip.dim, .chip.status.dim  { background:var(--red);    color:var(--paper); }
.chip.muted { background:var(--surface); color:var(--ink-soft); border:1px solid var(--line); }

/* ---- panels ---- */
.panel { background:var(--surface); border:1px solid var(--line); border-radius:12px; margin:18px 0;
  overflow:hidden; }
.panel h2 { font:700 15px/1 var(--font-display); margin:0; padding:14px 16px;
  border-bottom:1px solid var(--line); letter-spacing:-0.01em; display:flex; align-items:center; }
.panel h2::before { content:""; width:9px; height:9px; border-radius:2px; background:var(--orange);
  flex:0 0 auto; margin-right:10px; }
.panel h2 .size { color:var(--ink-soft); font:400 12px var(--font-mono); margin-left:9px;
  font-variant-numeric:tabular-nums; }

/* ---- 3D viewer (the hero) ---- */
.viewer-wrap { position:relative; }
.viewer { width:100%; aspect-ratio:4/3; background:var(--well); touch-action:none; display:block; }
@media (min-width:900px){ .viewer { aspect-ratio:auto; height:min(66vh, 600px); } }
.viewer-status { position:absolute; inset:0; display:flex; flex-direction:column; gap:12px;
  align-items:center; justify-content:center; background:var(--well); color:var(--ink-soft);
  font:500 12px var(--font-mono); transition:opacity .3s var(--ease-out); }
.viewer-status.hidden { opacity:0; pointer-events:none; }
.viewer-status .status-row { display:flex; gap:10px; align-items:center; }
.bar { display:none; width:min(60%, 220px); height:4px; border-radius:3px; background:#d8d0bd; overflow:hidden; }
.bar.on { display:block; }
.bar i { display:block; height:100%; width:0%; background:var(--orange); transition:width .12s linear; }
.viewer-status.error .bar { display:none; }
.viewer-status.error { color:var(--red); }
.spinner { width:16px; height:16px; border:2px solid #cfc7b4; border-top-color:var(--orange);
  border-radius:50%; animation:spin .8s linear infinite; }
.viewer-status.error .spinner { display:none; }
@keyframes spin { to { transform:rotate(360deg); } }
.viewer-load { position:absolute; inset:0; margin:0; width:100%; height:100%; display:flex;
  align-items:center; justify-content:center; gap:9px;
  background:var(--well) center/contain no-repeat; border:0; cursor:pointer; color:var(--ink-soft);
  font:600 13px var(--font-display); letter-spacing:0.01em;
  transition:color .15s var(--ease-out), background .15s var(--ease-out); }
.viewer-load.has-poster { align-items:flex-end; padding-bottom:16px; }
.viewer-load.has-poster .lbl, .viewer-load.has-poster > span { background:rgba(251,248,240,0.93);
  border:1px solid var(--line); border-radius:999px; padding:8px 15px;
  box-shadow:0 2px 10px rgba(0,0,0,0.10); color:var(--ink); }
.viewer-load .play { display:inline-flex; align-items:center; justify-content:center; width:30px; height:30px;
  border-radius:50%; background:var(--orange); color:var(--paper); font-size:12px; padding-left:2px; }
.viewer-load:hover, .viewer-load:focus-visible { color:var(--ink); background:#efe9da; outline:none; }
.viewer-exit { position:absolute; top:14px; right:14px; z-index:2; display:none; background:var(--surface);
  color:var(--ink); border:1px solid var(--ink); border-radius:8px; padding:8px 13px;
  font:600 11px var(--font-display); text-transform:uppercase; letter-spacing:0.06em; cursor:pointer;
  transition:border-color .15s var(--ease-out), color .15s var(--ease-out); }
.viewer-exit:hover, .viewer-exit:focus-visible { border-color:var(--orange); color:var(--orange); outline:none; }
.viewer-wrap.maximized { position:fixed; inset:0; z-index:100; margin:0; background:var(--well); }
.viewer-wrap.maximized .viewer { height:100%; width:100%; aspect-ratio:auto; }
.viewer-wrap.maximized .viewer-exit { display:inline-flex; }
body.has-maximized { overflow:hidden; }

/* ---- viewer controls ---- */
.controls { padding:11px 16px; border-top:1px solid var(--line); display:flex; gap:8px; flex-wrap:wrap;
  align-items:center; }
.controls button, .controls .ar { background:var(--surface); color:var(--ink); border:1px solid var(--line);
  border-radius:8px; padding:7px 11px; font:500 12px var(--font-display); letter-spacing:0.01em;
  cursor:pointer; text-decoration:none; display:inline-block; transition:border-color .15s var(--ease-out); }
.controls button:hover, .controls .ar:hover { border-color:var(--ink); }
.controls button.on { background:var(--orange); color:var(--paper); border-color:var(--orange); }
.controls .ar { background:var(--orange); color:var(--paper); border-color:var(--orange); }
.controls .hint { margin-left:auto; color:var(--ink-soft); font:500 11px var(--font-mono); }
.manifest { padding:10px 16px 14px; color:var(--ink-soft); font:12px/1.5 var(--font-mono);
  border-top:1px solid var(--line); }

/* ---- specs / BOM ---- */
.specs-body { padding:14px 16px; }
.specs-dl { display:flex; gap:10px; margin:0 0 12px; align-items:baseline; }
.specs-dl dt { font:700 12px var(--font-display); color:var(--ink-soft); text-transform:uppercase;
  letter-spacing:0.05em; }
.specs-dl dd { margin:0; font:500 13px var(--font-mono); }
table.bom { width:100%; border-collapse:collapse; font:13px/1.5 var(--font-mono); margin:0 0 14px; }
table.bom th { text-align:left; font:700 11px var(--font-display); text-transform:uppercase;
  letter-spacing:0.04em; color:var(--ink-soft); border-bottom:1px solid var(--line); padding:6px 10px 6px 0; }
table.bom td { padding:6px 10px 6px 0; border-bottom:1px solid var(--line); vertical-align:top; }
.dl-3mf { display:inline-block; background:var(--orange); color:var(--paper); border-radius:8px;
  padding:9px 15px; font:600 13px var(--font-display); text-decoration:none; }
.dl-3mf:hover { filter:brightness(1.05); }

/* ---- gallery: clickable, full-res, never cropped ---- */
.gallery { display:grid; gap:10px; padding:14px; grid-template-columns:repeat(auto-fill, minmax(180px,1fr)); }
.gallery a { display:block; border-radius:8px; overflow:hidden; border:1px solid var(--line);
  background:var(--well); position:relative; transition:border-color .15s var(--ease-out); }
.gallery a:hover { border-color:var(--orange); }
.gallery a:focus-visible { outline:2px solid var(--orange); outline-offset:2px; }
.gallery img { width:100%; height:auto; display:block; object-fit:contain; background:var(--well); }
.gallery a::after { content:"⤢"; position:absolute; top:7px; right:8px; width:22px; height:22px;
  display:flex; align-items:center; justify-content:center; border-radius:6px;
  background:rgba(28,26,22,0.82); color:var(--paper); font-size:12px; opacity:0;
  transition:opacity .15s var(--ease-out); }
.gallery a:hover::after, .gallery a:focus-visible::after { opacity:1; }

/* ---- footer ---- */
footer { color:var(--ink-soft); font:12px/1.7 var(--font-mono); max-width:1180px; margin:46px auto 0;
  text-align:center; font-variant-numeric:tabular-nums; }
footer.flush { text-align:left; max-width:1100px; padding-top:22px; border-top:1px solid var(--line);
  margin-top:54px; display:flex; flex-wrap:wrap; gap:8px 18px; align-items:center; }
footer.flush .spacer { margin-left:auto; }
.tag { display:inline-block; border:1px solid var(--line); background:var(--surface); border-radius:6px;
  padding:3px 9px; margin:0 4px; }
footer a { color:var(--ink-soft); text-decoration:underline; text-underline-offset:2px; }

/* ---- text utilities ---- */
.link { color:var(--blue); text-decoration:underline; text-underline-offset:2px; }
.link:hover { color:var(--orange); }
.muted { color:var(--ink-soft); }

/* ---- a11y / motion ---- */
.crumb:focus-visible, .controls button:focus-visible, .controls .ar:focus-visible {
  outline:2px solid var(--orange); outline-offset:2px; }
@media (pointer: coarse){ .controls button, .controls .ar { min-height:44px; display:inline-flex;
  align-items:center; } }
@media (prefers-reduced-motion: reduce){
  .card, .controls button, .controls .ar, .viewer-status, .notes-list .entry { transition:none; }
  .card:hover { transform:none; }
  .spinner { animation:none; border-top-color:var(--line); }
}