/* ============================================================
   Materials — "Wood & Stone" field guide
   Standalone content page. Reuses the Tellurian paper/ink palette
   and mono/display type so it sits with the homepage + guide, but
   presents as a sharp specimen board: hairline grid, no rounded
   corners, no drop-shadows. Tiles collapse to image + name; the
   full profile opens in a lightbox.
   HTML is generated by tools/build-materials.mjs.
   ============================================================ */

:root{
  --paper:#FCF3E3;
  --paper2:#fff7ea;
  --ink:#0b0b0b;
  --inkMuted:rgba(11,11,11,.66);
  --inkFaint:rgba(11,11,11,.45);
  --inkHair:rgba(11,11,11,.16);
  --inkHair2:rgba(11,11,11,.28);
  --inkSoft:rgba(11,11,11,.05);
  --accent:#3F2B1E;
  --accmuted:#7a6151;
  --wood:#7a5230;
  --stone:#5b6066;
  --mono:"Geist Mono",ui-monospace,SFMono-Regular,Menlo,Consolas,"Liberation Mono","Courier New",monospace;
  --sans:ui-sans-serif,system-ui,-apple-system,"Segoe UI",Roboto,Helvetica,Arial;
  --display:"MuseoModerno","Museo Moderno",var(--sans);
}

*{box-sizing:border-box;}
html{scroll-behavior:smooth;}
body{
  margin:0;
  background:var(--paper);
  color:var(--ink);
  font-family:var(--sans);
  font-size:16px;
  line-height:1.55;
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
}
img{max-width:100%;display:block;}
a{color:inherit;}

.mwrap{max-width:1240px;margin:0 auto;padding:0 22px 96px;}

/* ---- top bar ---- */
.mtopbar{
  display:flex;align-items:center;justify-content:space-between;
  padding:20px 0 10px;
}
.mlogo{
  font-family:var(--display);font-weight:600;font-size:20px;
  letter-spacing:.02em;text-decoration:none;color:var(--ink);
}
.mtopbar__nav{display:flex;gap:20px;}
.mtopbar__nav a{
  font-family:var(--mono);font-size:11px;letter-spacing:.14em;
  text-transform:uppercase;text-decoration:none;color:var(--inkMuted);
  padding-bottom:2px;border-bottom:1px solid transparent;transition:color .18s,border-color .18s;
}
.mtopbar__nav a:hover{color:var(--ink);border-color:var(--ink);}

/* ---- hero ---- */
.mhero{padding:46px 0 30px;border-bottom:1px solid var(--ink);}
.mhero__eyebrow{
  font-family:var(--mono);font-size:11px;letter-spacing:.22em;text-transform:uppercase;
  color:var(--accmuted);margin:0 0 16px;
}
.mhero__title{
  font-family:var(--display);font-weight:600;
  font-size:clamp(36px,6.6vw,68px);line-height:1.0;letter-spacing:-.015em;margin:0;
}
.mhero__title em{font-style:normal;color:var(--accent);}
.mhero__lead{
  max-width:64ch;margin:20px 0 0;font-size:clamp(16px,2.1vw,19px);
  line-height:1.6;color:var(--inkMuted);
}
.mhero__meta{
  display:flex;flex-wrap:wrap;gap:0;margin:22px 0 0;padding:0;
  font-family:var(--mono);font-size:10.5px;letter-spacing:.12em;text-transform:uppercase;
  color:var(--inkFaint);
}
.mhero__meta span{padding:0 14px;border-left:1px solid var(--inkHair);}
.mhero__meta span:first-child{padding-left:0;border-left:0;}

/* ---- toolbar (sticky filter bar) ---- */
.mtoolbar{
  position:sticky;top:0;z-index:30;
  background:color-mix(in srgb,var(--paper) 94%,transparent);
  backdrop-filter:saturate(140%) blur(8px);
  -webkit-backdrop-filter:saturate(140%) blur(8px);
  border-bottom:1px solid var(--ink);
  margin:22px -22px 0;padding:11px 22px;
  display:flex;flex-wrap:wrap;align-items:center;gap:12px;
}
.mchips{display:flex;flex-wrap:wrap;gap:0;flex:1 1 auto;}
.mchip{
  font-family:var(--mono);font-size:10.5px;letter-spacing:.1em;text-transform:uppercase;
  color:var(--inkMuted);background:transparent;
  border:1px solid var(--inkHair);border-left:0;
  padding:7px 12px;cursor:pointer;transition:background .15s,color .15s,border-color .15s;white-space:nowrap;
}
.mchip:first-child{border-left:1px solid var(--inkHair);}
.mchip:hover{color:var(--ink);background:var(--inkSoft);}
.mchip.is-on{background:var(--ink);color:var(--paper);border-color:var(--ink);}
.mchip.is-on + .mchip{border-left:0;}
.mtoolbar__right{display:flex;align-items:center;gap:12px;margin-left:auto;}
.msearch{
  font-family:var(--mono);font-size:13px;color:var(--ink);
  background:#fff;border:1px solid var(--inkHair2);
  padding:8px 13px;width:210px;max-width:46vw;
}
.msearch::placeholder{color:var(--inkFaint);}
.msearch:focus{outline:none;border-color:var(--accent);}
.mcount{
  font-family:var(--mono);font-size:10.5px;letter-spacing:.1em;text-transform:uppercase;
  color:var(--inkFaint);white-space:nowrap;
}

/* ---- section ---- */
.msection{margin-top:52px;}
.msection__head{display:flex;align-items:baseline;gap:14px;margin-bottom:6px;}
.msection__ix{
  font-family:var(--mono);font-size:12px;letter-spacing:.08em;color:var(--accmuted);
}
.msection__title{
  font-family:var(--display);font-weight:600;font-size:clamp(23px,3.6vw,32px);margin:0;letter-spacing:-.01em;
}
.msection__note{font-family:var(--mono);font-size:10.5px;letter-spacing:.06em;text-transform:uppercase;color:var(--inkFaint);margin-left:auto;}
.msection__intro{max-width:74ch;margin:10px 0 26px;color:var(--inkMuted);font-size:15px;}
.msection[hidden]{display:none;}

/* ---- specimen board grid ----
   Hairlines are drawn with per-cell right/bottom borders (plus a top/left
   frame on the container) rather than a container background, so trailing
   empty cells in a short last row stay invisible instead of showing a block. */
.mgrid{
  display:grid;
  grid-template-columns:repeat(auto-fill,minmax(196px,1fr));
  gap:0;
  border-top:1px solid var(--ink);
  border-left:1px solid var(--ink);
}
.mat{
  background:var(--paper);display:flex;flex-direction:column;min-width:0;
  border-right:1px solid var(--inkHair);
  border-bottom:1px solid var(--inkHair);
}
.mat[hidden]{display:none;}

/* the collapsed tile — image + name */
.mat__tile{
  display:flex;flex-direction:column;width:100%;height:100%;
  margin:0;padding:0;border:0;background:transparent;text-align:left;
  font:inherit;color:inherit;cursor:pointer;position:relative;
}
.mat__thumb{
  position:relative;display:block;aspect-ratio:4/3;overflow:hidden;
  background:linear-gradient(135deg,var(--sw,#cbb389),var(--sw2,#a98a5a));
  border-bottom:1px solid var(--inkHair);
}
.mat__thumb img{
  position:absolute;inset:0;width:100%;height:100%;object-fit:cover;
  transition:transform .45s cubic-bezier(.2,.7,.2,1),filter .3s;
}
.mat__thumb--swatch::after{
  /* subtle tonal band so a photo-less chip still reads as a designed sample */
  content:"";position:absolute;inset:0;
  background:linear-gradient(180deg,transparent 55%,rgba(11,11,11,.16));
  mix-blend-mode:multiply;
}
.mat__cap{
  display:flex;flex-direction:column;gap:1px;
  padding:10px 12px 13px;flex:1;min-width:0;overflow-wrap:break-word;
}
.mat__name{
  font-family:var(--display);font-weight:600;font-size:16px;line-height:1.12;letter-spacing:-.005em;
}
.mat__latin{font-family:var(--mono);font-style:italic;font-size:10.5px;color:var(--inkFaint);line-height:1.3;}
.mat__open{
  position:absolute;top:0;right:0;
  font-family:var(--mono);font-size:9px;letter-spacing:.14em;text-transform:uppercase;
  color:var(--paper);background:var(--ink);padding:4px 8px;
  opacity:0;transform:translateY(-2px);transition:opacity .16s,transform .16s;
}
.mat__tile:hover .mat__thumb img{transform:scale(1.05);}
.mat__tile:hover .mat__name{text-decoration:underline;text-underline-offset:3px;text-decoration-thickness:1px;}
.mat__tile:hover .mat__open,
.mat__tile:focus-visible .mat__open{opacity:1;transform:translateY(0);}
.mat__tile:focus-visible{outline:2px solid var(--accent);outline-offset:-2px;}

/* ---- detail (shown in the lightbox; and inline if JS is off) ---- */
.js .mat__detail{display:none;}
.mat__detail{padding:18px 2px 6px;border-top:1px solid var(--inkHair);}

.mat__media{display:grid;grid-template-columns:repeat(3,1fr);gap:1px;background:var(--inkHair);border:1px solid var(--inkHair);}
.mfig{position:relative;margin:0;aspect-ratio:4/3;background:var(--inkSoft);overflow:hidden;}
.mfig img{width:100%;height:100%;object-fit:cover;}
.mfig::after{
  content:attr(data-label);
  position:absolute;left:0;bottom:0;z-index:2;
  font-family:var(--mono);font-size:8.5px;letter-spacing:.1em;text-transform:uppercase;
  color:var(--paper);background:rgba(11,11,11,.62);padding:3px 7px;
  pointer-events:none;
}
.mfig--empty img{display:none;}
.mfig--empty{
  display:flex;align-items:center;justify-content:center;
  background:repeating-linear-gradient(135deg,var(--inkSoft) 0 10px,transparent 10px 20px),#f3e8d2;
}
.mfig--empty::before{content:"";width:24px;height:24px;border:1.5px solid var(--inkFaint);opacity:.5;}

/* colour reference hero for materials awaiting photography */
.mat__swatchhero{
  aspect-ratio:16/6;min-height:150px;display:flex;flex-direction:column;justify-content:flex-end;gap:4px;
  padding:18px 20px;border:1px solid var(--inkHair);
  background:linear-gradient(135deg,var(--sw,#cbb389),var(--sw2,#a98a5a));
  position:relative;overflow:hidden;
}
.mat__swatchhero::after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,transparent 45%,rgba(11,11,11,.22));}
.mat__swatchhero-name{position:relative;z-index:1;font-family:var(--display);font-weight:600;font-size:22px;color:var(--paper);text-shadow:0 1px 2px rgba(0,0,0,.35);}
.mat__swatchhero-note{position:relative;z-index:1;font-family:var(--mono);font-size:9.5px;letter-spacing:.12em;text-transform:uppercase;color:rgba(252,243,227,.9);}

.mat__info{padding-top:2px;}
.mat__dhead{display:flex;flex-wrap:wrap;align-items:baseline;gap:8px;margin-top:14px;}
.mat__dname{font-family:var(--display);font-weight:600;font-size:24px;margin:0;line-height:1.05;}
.mat__dlatin{font-family:var(--mono);font-style:italic;font-size:13px;color:var(--inkFaint);}
.mat__tags{display:flex;flex-wrap:wrap;gap:5px;width:100%;margin-top:4px;}
.tag{
  font-family:var(--mono);font-size:9.5px;letter-spacing:.08em;text-transform:uppercase;
  color:var(--inkMuted);border:1px solid var(--inkHair2);padding:3px 7px;
}
.tag--wood{color:var(--wood);border-color:color-mix(in srgb,var(--wood) 40%,transparent);}
.tag--stone{color:var(--stone);border-color:color-mix(in srgb,var(--stone) 46%,transparent);}

.mat__plain{margin:14px 0 0;font-size:15px;line-height:1.6;color:var(--ink);max-width:70ch;}

.mat__specs{margin:16px 0 0;border-top:1px solid var(--ink);}
.mat__specs div{
  display:grid;grid-template-columns:9em 1fr;gap:12px;
  padding:8px 0;border-bottom:1px solid var(--inkHair);
}
.mat__specs dt{
  font-family:var(--mono);font-size:10px;letter-spacing:.07em;text-transform:uppercase;
  color:var(--inkFaint);margin:0;align-self:center;
}
.mat__specs dd{margin:0;font-size:14px;color:var(--ink);}
.mat__specs dd b{font-weight:600;}

.mat__notes{margin-top:18px;padding-top:14px;border-top:1px solid var(--inkHair);}
.mat__notes-h{font-family:var(--mono);font-size:10.5px;letter-spacing:.12em;text-transform:uppercase;color:var(--accmuted);margin:0 0 8px;}
.mat__expert{margin:0;font-size:14px;line-height:1.6;color:var(--inkMuted);max-width:74ch;}
.mat__src{margin:12px 0 0;font-family:var(--mono);font-size:10px;line-height:1.5;letter-spacing:.02em;color:var(--inkFaint);}

/* ---- no results ---- */
.mempty{
  display:none;text-align:center;padding:60px 0;
  font-family:var(--mono);font-size:13px;letter-spacing:.06em;color:var(--inkFaint);
}
.mempty.is-on{display:block;}

/* ---- FAQ ---- */
.mfaq{border-top:1px solid var(--ink);border-left:1px solid var(--ink);}
.mfaq__item{padding:20px 22px;border-bottom:1px solid var(--inkHair);border-right:1px solid var(--ink);}
.mfaq__q{font-family:var(--display);font-weight:600;font-size:17px;margin:0 0 6px;}
.mfaq__a{margin:0;font-size:14.5px;line-height:1.6;color:var(--inkMuted);max-width:80ch;}
@media (min-width:720px){
  .mfaq{display:grid;grid-template-columns:1fr 1fr;}
}

/* ---- footer ---- */
.mfoot{margin-top:80px;padding-top:30px;border-top:1px solid var(--ink);}
.mfoot__note{max-width:76ch;font-size:13px;line-height:1.6;color:var(--inkMuted);margin:0 0 22px;}
.mfoot__note strong{color:var(--ink);}
.mcross{display:flex;flex-wrap:wrap;gap:0;}
.mcross a{
  font-family:var(--mono);font-size:11px;letter-spacing:.12em;text-transform:uppercase;
  text-decoration:none;color:var(--inkMuted);
  border:1px solid var(--inkHair2);border-left:0;padding:9px 15px;transition:background .15s,color .15s;
}
.mcross a:first-child{border-left:1px solid var(--inkHair2);}
.mcross a:hover{background:var(--ink);color:var(--paper);border-color:var(--ink);}
.mfoot__tiny{margin-top:26px;font-family:var(--mono);font-size:10px;letter-spacing:.08em;color:var(--inkFaint);}

/* ============================================================
   Lightbox
   ============================================================ */
.mdlg[hidden]{display:none;}
.mdlg{position:fixed;inset:0;z-index:100;display:flex;align-items:flex-start;justify-content:center;padding:4vh 20px;overflow-y:auto;}
.mdlg__backdrop{position:fixed;inset:0;background:rgba(11,11,11,.72);backdrop-filter:blur(3px);-webkit-backdrop-filter:blur(3px);}
.mdlg__panel{
  position:relative;z-index:1;width:100%;max-width:920px;margin:auto;
  background:var(--paper);border:1px solid var(--ink);
  padding:16px 26px 30px;
  animation:mdlgIn .22s cubic-bezier(.2,.7,.2,1);
}
@keyframes mdlgIn{from{opacity:0;transform:translateY(10px);}to{opacity:1;transform:none;}}
.mdlg__bar{
  position:sticky;top:0;z-index:2;display:flex;align-items:center;justify-content:space-between;gap:10px;
  margin:0 -26px 4px;padding:10px 26px;background:var(--paper);border-bottom:1px solid var(--inkHair);
}
.mdlg__count{font-family:var(--mono);font-size:10.5px;letter-spacing:.12em;text-transform:uppercase;color:var(--inkFaint);}
.mdlg__steps{display:flex;gap:0;}
.mdlg__step,.mdlg__close{
  font-family:var(--mono);font-size:10.5px;letter-spacing:.1em;text-transform:uppercase;
  color:var(--inkMuted);background:transparent;border:1px solid var(--inkHair2);border-left:0;
  padding:8px 12px;cursor:pointer;transition:background .15s,color .15s;
}
.mdlg__step:first-child{border-left:1px solid var(--inkHair2);}
.mdlg__step:hover,.mdlg__close:hover{background:var(--ink);color:var(--paper);border-color:var(--ink);}
.mdlg__step:disabled{opacity:.35;cursor:default;}
.mdlg__step:disabled:hover{background:transparent;color:var(--inkMuted);border-color:var(--inkHair2);}
.mdlg__close{color:var(--ink);}
.mdlg__title{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0);}
.mdlg__body .mat__detail{display:block;padding:0;border:0;}
.mdlg__body .mat__dhead{margin-top:16px;}

@media (max-width:640px){
  .mwrap{padding:0 16px 72px;}
  .mtoolbar{margin:18px -16px 0;padding:11px 16px;}
  .mtoolbar__right{width:100%;margin-left:0;justify-content:space-between;}
  .msearch{flex:1;max-width:none;}
  .mgrid{grid-template-columns:repeat(auto-fill,minmax(150px,1fr));}
  .mat__media{grid-template-columns:1fr 1fr;}
  .mfig:last-child{grid-column:1 / -1;aspect-ratio:16/7;}
  .mat__specs div{grid-template-columns:7.5em 1fr;gap:10px;}
  .mdlg__panel{padding:12px 18px 24px;}
  .mdlg__bar{margin:0 -18px 4px;padding:10px 18px;}
}

@media (prefers-reduced-motion:reduce){
  .mat__thumb img{transition:none;}
  .mdlg__panel{animation:none;}
}