/* ===========================================================================
   THE MATERIALS ATLAS — "Deep Strata"
   Dark by default because the subject is underground and because the
   photography (real mine, mineral and plant images) reads better on basalt
   than on paper. Light theme is a full re-declaration, not a filter.

   Design rules held to throughout:
     * Hairline RULES, not boxes. The only filled blocks are photographs and
       the heat map, where the fill IS the chart.
     * Headlines sit ON the photograph, never in a band underneath it.
     * Numbers are monospaced and never carry a colour that means nothing.
     * Every layout is checked at 360px before it is checked at 1440px.
   =========================================================================== */
@import url('https://fonts.googleapis.com/css2?family=Source+Serif+4:ital,opsz,wght@0,8..60,300..700;1,8..60,400&family=Inter:wght@400;500;600;700&family=IBM+Plex+Mono:wght@400;500;600&display=swap');

:root{
  /* dark is the default: no [data-theme] attribute means dark */
  --bg:#0d0f10;            /* basalt */
  --bg2:#131617;           /* slightly lifted panel ground */
  --fg:#eae7df;            /* bone */
  --fg-dim:#9aa09d;
  --muted:#7d8481;
  --line:#242a29;
  --line-soft:#1a1f1e;
  --accent:#c9743d;        /* oxide copper */
  --accent-soft:#e0a274;
  --patina:#5f9e83;        /* malachite */
  --gold:#c9a227;
  --danger:#c25a4e;
  --ink-on-accent:#120c07;
  --shadow:0 18px 50px rgba(0,0,0,.55);
  --serif:"Source Serif 4",Iowan Old Style,Palatino,"Palatino Linotype",Georgia,serif;
  --sans:Inter,-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,Helvetica,Arial,sans-serif;
  --mono:"IBM Plex Mono",ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;
  --maxw:1220px;
}
[data-theme="light"]{
  --bg:#f6f4ef;            /* bone paper */
  --bg2:#fffdf9;
  --fg:#16191a;
  --fg-dim:#4b524f;
  --muted:#6d7370;
  --line:#ded8cc;
  --line-soft:#eae5da;
  --accent:#a8541f;
  --accent-soft:#8a4519;
  --patina:#2f6d55;
  --gold:#8a6f14;
  --danger:#9c332a;
  --ink-on-accent:#fff8f2;
  --shadow:0 14px 40px rgba(20,16,10,.13);
}

*{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{margin:0;background:var(--bg);color:var(--fg);font:400 16px/1.62 var(--sans);
  font-feature-settings:"tnum" 0;overflow-x:hidden}
a{color:inherit;text-decoration:none}
main a:not(.btn):not(.chip):not(.card):not(.tile):not(.crumb){
  text-decoration:underline;text-decoration-color:color-mix(in srgb,var(--accent) 55%,transparent);
  text-underline-offset:3px;text-decoration-thickness:1px}
main a:not(.btn):hover{color:var(--accent-soft);text-decoration-color:var(--accent)}
img{max-width:100%;display:block}
hr{border:0;border-top:1px solid var(--line);margin:34px 0}
::selection{background:var(--accent);color:var(--ink-on-accent)}

/* ------------------------------------------------------------- typography */
h1,h2,h3,h4{font-family:var(--serif);font-weight:600;letter-spacing:-.012em;line-height:1.14;margin:0}
h1{font-size:clamp(30px,4.6vw,54px);font-weight:600}
h2{font-size:clamp(22px,2.6vw,31px);margin:36px 0 10px}
h3{font-size:clamp(18px,1.9vw,21px);margin:26px 0 8px}
p{margin:0 0 15px}
.eyebrow{font:600 11px/1.3 var(--sans);letter-spacing:.19em;text-transform:uppercase;
  color:var(--accent-soft);margin:0 0 12px}
.eyebrow.plain{color:var(--muted)}
.lede{font-family:var(--serif);font-size:clamp(18px,2.1vw,22px);line-height:1.52;color:var(--fg-dim);
  max-width:60ch;margin:0 0 22px}
.prose{max-width:66ch}
.prose p{font-size:16.5px;line-height:1.72}
.prose h3{font-family:var(--sans);font-size:15px;font-weight:700;letter-spacing:.02em;
  text-transform:uppercase;color:var(--fg-dim);margin:30px 0 8px}
.prose ul,.prose ol{padding-left:20px;margin:0 0 15px}
.prose li{margin:0 0 7px}
.num{font-family:var(--mono);font-variant-numeric:tabular-nums;font-size:.94em;letter-spacing:-.01em}
.small{font-size:13.5px}
.dim{color:var(--muted)}
.serif{font-family:var(--serif)}

/* ------------------------------------------------------------------ chrome */
.topbar{position:sticky;top:0;z-index:60;display:flex;align-items:center;gap:18px;
  padding:0 20px;height:62px;background:color-mix(in srgb,var(--bg) 92%,transparent);
  backdrop-filter:saturate(1.4) blur(14px);border-bottom:1px solid var(--line)}
.burger{display:none;background:none;border:0;color:var(--fg);font-size:19px;cursor:pointer;padding:6px}
.logo-wrap{display:flex;flex-direction:column;justify-content:center;gap:1px;flex:0 0 auto;min-width:auto}
.logo{font-family:var(--serif);font-size:19px;font-weight:600;letter-spacing:-.02em;white-space:nowrap;
  display:flex;align-items:center;gap:9px}
.logo .mark{width:19px;height:19px;flex:0 0 auto}
.logo em{font-style:normal;color:var(--accent)}
.tagline{font-size:10px;letter-spacing:.1em;text-transform:uppercase;color:var(--muted);
  white-space:nowrap;padding-left:28px}
.mainnav{display:flex;align-items:center;gap:1px;margin-left:auto;margin-right:auto;flex-wrap:nowrap}
.mainnav>a,.mainnav .ddbtn{color:var(--fg-dim);font-size:13.5px;font-weight:500;padding:9px 11px;
  white-space:nowrap;border-radius:3px}
.mainnav>a:hover,.ddbtn:hover{color:var(--fg);background:var(--line-soft)}
.mainnav>a.cur{color:var(--accent-soft)}
.dd{position:relative;display:flex;align-items:center}
.ddmenu{display:none;position:absolute;top:calc(100% + 6px);left:0;min-width:250px;z-index:80;
  background:var(--bg2);border:1px solid var(--line);box-shadow:var(--shadow);padding:8px 0}
.ddmenu.open{display:block}
.ddmenu a{display:block;padding:8px 16px;font-size:13.5px;color:var(--fg-dim)}
.ddmenu a:hover{background:var(--line-soft);color:var(--fg)}
.ddmenu .ddhead{font:600 10px/1 var(--sans);letter-spacing:.16em;text-transform:uppercase;
  color:var(--muted);padding:12px 16px 6px}
.ddmenu .ddsep{border-top:1px solid var(--line);margin:7px 0}
.searchwrap{position:relative;flex:0 1 240px}
.searchwrap input{width:100%;background:transparent;border:0;border-bottom:1px solid var(--line);
  color:var(--fg);font:400 13.5px var(--sans);padding:8px 2px;outline:none}
.searchwrap input:focus{border-bottom-color:var(--accent)}
.searchwrap input::placeholder{color:var(--muted)}
.searchresults{display:none;position:absolute;right:0;top:calc(100% + 8px);width:330px;z-index:90;
  background:var(--bg2);border:1px solid var(--line);box-shadow:var(--shadow);max-height:70vh;overflow:auto}
.searchresults.open{display:block}
.searchresults a{display:flex;justify-content:space-between;gap:14px;padding:9px 14px;font-size:13.5px}
.searchresults a:hover{background:var(--line-soft)}
.searchresults .k{color:var(--muted);font-size:10.5px;letter-spacing:.12em;text-transform:uppercase;
  align-self:center;flex:0 0 auto}
.iconbtn{background:none;border:1px solid var(--line);color:var(--fg-dim);width:32px;height:32px;
  border-radius:50%;cursor:pointer;font-size:14px;line-height:1;padding:0;flex:0 0 auto;
  display:inline-flex;align-items:center;justify-content:center}
.iconbtn:hover{border-color:var(--accent);color:var(--accent)}
.savebtn{position:relative;color:var(--gold);font-size:16px;flex:0 0 auto;padding:4px 2px}
.favbadge{position:absolute;top:-3px;right:-10px;background:var(--accent);color:var(--ink-on-accent);
  font:700 9.5px/1 var(--sans);border-radius:999px;min-width:16px;height:16px;padding:0 4px;
  display:inline-flex;align-items:center;justify-content:center}

/* offcanvas */
.offcanvas{position:fixed;top:0;bottom:0;width:320px;max-width:88vw;background:var(--bg2);z-index:100;
  transition:transform .24s ease;overflow-y:auto;padding:18px;border-right:1px solid var(--line)}
.offcanvas.left{left:0;transform:translateX(-101%)}
.offcanvas.right{right:0;left:auto;transform:translateX(101%);border-left:1px solid var(--line);border-right:0}
.offcanvas.open{transform:none}
.oc-backdrop{display:none;position:fixed;inset:0;background:rgba(0,0,0,.6);z-index:95}
.oc-backdrop.open{display:block}
.oc-head{display:flex;justify-content:space-between;align-items:center;margin-bottom:14px;
  padding-bottom:12px;border-bottom:1px solid var(--line)}
.oc-head b{font-family:var(--serif);font-size:17px;font-weight:600}
.oc-close{background:none;border:0;font-size:24px;cursor:pointer;color:var(--muted);line-height:1}
.oc-link{display:block;padding:11px 2px;border-bottom:1px solid var(--line-soft);font-weight:500;font-size:15px}
.offcanvas details{border-bottom:1px solid var(--line-soft)}
.offcanvas summary{padding:11px 2px;font-weight:500;cursor:pointer;font-size:15px;list-style:none}
.offcanvas summary::-webkit-details-marker{display:none}
.offcanvas summary::after{content:"+";float:right;color:var(--muted)}
.offcanvas details[open] summary::after{content:"–"}
.offcanvas details a{display:block;padding:7px 14px;color:var(--fg-dim);font-size:14px}
.oc-row{display:flex;justify-content:space-between;align-items:center;gap:12px;padding:13px 2px;
  border-bottom:1px solid var(--line-soft)}
.oc-note{font-size:13px;color:var(--muted);line-height:1.5;padding:12px 0}
.oc-note b{color:var(--fg);display:block;margin-bottom:3px;font-size:13.5px}

/* ------------------------------------------------------------------ layout */
.page{max-width:var(--maxw);margin:0 auto;padding:26px 20px 10px}
.page.wide{max-width:1420px}
.crumbs{display:flex;flex-wrap:wrap;gap:8px;align-items:center;font-size:12px;letter-spacing:.06em;
  text-transform:uppercase;color:var(--muted);margin-bottom:16px}
.crumbs a{color:var(--muted)}
.crumbs a:hover{color:var(--accent)}
.crumbs span{opacity:.45}
.split{display:grid;grid-template-columns:minmax(0,1fr) 320px;gap:56px;align-items:start}
.rail{position:sticky;top:86px}
.cols2{display:grid;grid-template-columns:repeat(auto-fit,minmax(300px,1fr));gap:40px}
.cols3{display:grid;grid-template-columns:repeat(auto-fit,minmax(240px,1fr));gap:32px}
.stack>*+*{margin-top:14px}

/* ------------------------------------------------------------------- hero */
.hero{position:relative;min-height:min(66vh,520px);display:flex;align-items:flex-end;
  overflow:hidden;background:#0a0c0c}
.hero.tall{min-height:min(72vh,580px)}
.hero.short{min-height:min(46vh,360px)}
.hero>img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;
  filter:saturate(.86) contrast(1.04);opacity:.72}
.hero::after{content:"";position:absolute;inset:0;pointer-events:none;
  background:linear-gradient(180deg,rgba(8,10,10,.72) 0%,rgba(8,10,10,.30) 34%,rgba(8,10,10,.80) 82%,var(--bg) 100%)}
.hero-inner{position:relative;z-index:2;max-width:var(--maxw);margin:0 auto;width:100%;
  padding:0 20px 42px;color:#f4f1ea}
.hero-inner h1{color:#fff;max-width:20ch;text-shadow:0 2px 26px rgba(0,0,0,.55)}
.hero-inner .lede{color:rgba(244,241,234,.86);max-width:56ch;text-shadow:0 1px 16px rgba(0,0,0,.5)}
.hero-inner .eyebrow{color:var(--accent-soft)}
/* the depth rail: a geological scale down the left edge of the hero */
.depthrail{position:absolute;left:22px;top:0;bottom:0;z-index:2;display:flex;flex-direction:column;
  justify-content:center;gap:0;pointer-events:none}
.depthrail i{display:block;width:1px;background:rgba(255,255,255,.22);height:26px;margin:0 0 0 14px}
.depthrail b{font:500 9px/1 var(--mono);letter-spacing:.1em;color:rgba(255,255,255,.42);
  display:flex;align-items:center;gap:7px}
.depthrail b::before{content:"";width:12px;height:1px;background:rgba(255,255,255,.42)}
.hero-credit{position:absolute;right:14px;bottom:10px;z-index:3;font:400 10px/1.4 var(--sans);
  color:rgba(255,255,255,.55);max-width:52%;text-align:right}
.hero-credit a{color:rgba(255,255,255,.72);text-decoration:underline}
.hero-search{position:relative;z-index:2;margin:22px 0 8px;max-width:620px}
.hero-search form{display:flex;gap:0;border-bottom:2px solid rgba(255,255,255,.5)}
.hero-search input{flex:1;background:transparent;border:0;color:#fff;font:400 19px var(--sans);
  padding:12px 2px;outline:none}
.hero-search input::placeholder{color:rgba(255,255,255,.5)}
.hero-search button{background:none;border:0;color:#fff;cursor:pointer;font-size:19px;padding:0 12px}
.hero-egs{display:flex;flex-wrap:wrap;gap:8px;margin-top:14px;font-size:13px}
.hero-egs a{color:rgba(244,241,234,.72);border:1px solid rgba(255,255,255,.24);
  padding:5px 12px;border-radius:999px}
.hero-egs a:hover{border-color:#fff;color:#fff}

/* full-bleed section image used mid-page */
.bleed{position:relative;margin:52px calc(50% - 50vw);width:100vw;height:min(46vh,380px);overflow:hidden}
.bleed img{width:100%;height:100%;object-fit:cover;opacity:.8}
.bleed::after{content:"";position:absolute;inset:0;
  background:linear-gradient(180deg,var(--bg),transparent 22%,transparent 74%,var(--bg))}
.bleed figcaption{position:absolute;left:0;right:0;bottom:16px;z-index:2;max-width:var(--maxw);
  margin:0 auto;padding:0 20px;color:rgba(244,241,234,.8);font-size:12.5px}

/* ------------------------------------------------------------------ pieces */
.trust{display:flex;flex-wrap:wrap;gap:0 30px;padding:16px 0;border-top:1px solid var(--line);
  border-bottom:1px solid var(--line);font-size:13px;color:var(--muted);margin:0 0 6px}
.trust b{color:var(--fg);font-family:var(--mono);font-weight:600}
.trust span{padding:3px 0}
.btn{display:inline-flex;align-items:center;gap:8px;border:1px solid var(--line);
  padding:9px 17px;font-size:13.5px;font-weight:500;color:var(--fg);background:transparent;
  cursor:pointer;font-family:var(--sans)}
.btn:hover{border-color:var(--accent);color:var(--accent)}
.btn.solid{background:var(--accent);border-color:var(--accent);color:var(--ink-on-accent)}
.btn.solid:hover{background:var(--accent-soft);border-color:var(--accent-soft);color:var(--ink-on-accent)}
.chip{display:inline-flex;align-items:center;gap:6px;border:1px solid var(--line);padding:4px 11px;
  font-size:12px;color:var(--fg-dim);border-radius:999px;white-space:nowrap}
.chip:hover{border-color:var(--accent);color:var(--accent)}
.chip.on{border-color:var(--accent);color:var(--accent)}
.chip.crit{border-color:color-mix(in srgb,var(--accent) 60%,transparent);color:var(--accent-soft)}
.chiprow{display:flex;flex-wrap:wrap;gap:7px;margin:12px 0 20px}
.chiprow.scroll{flex-wrap:nowrap;overflow-x:auto;scrollbar-width:none;padding-bottom:4px}
.chiprow.scroll::-webkit-scrollbar{display:none}
.chiprow.scroll>*{flex:0 0 auto}
.kv{display:grid;grid-template-columns:minmax(120px,auto) 1fr;gap:2px 22px;font-size:14px;margin:0 0 18px}
.kv dt{color:var(--muted);padding:7px 0;border-top:1px solid var(--line-soft)}
.kv dd{margin:0;padding:7px 0;border-top:1px solid var(--line-soft)}
.note{border-left:2px solid var(--accent);padding:2px 0 2px 16px;margin:20px 0;color:var(--fg-dim);
  font-size:14.5px;line-height:1.6}
.note b{color:var(--fg)}
.note.quiet{border-left-color:var(--line)}
.srcline{font-size:12px;color:var(--muted);margin:6px 0 22px;line-height:1.5}
.srcline a{color:var(--muted);text-decoration:underline}
.figlabel{display:inline-block;font:600 10px/1 var(--sans);letter-spacing:.13em;text-transform:uppercase;
  color:var(--muted);border:1px solid var(--line);padding:5px 9px;margin:0 6px 6px 0}
.sectionhead{display:flex;align-items:baseline;justify-content:space-between;gap:20px;
  border-bottom:1px solid var(--line);padding-bottom:9px;margin:38px 0 16px}
.sectionhead h2{margin:0}
.sectionhead a{font-size:13px;color:var(--muted);white-space:nowrap}
.sectionhead a:hover{color:var(--accent)}

/* --------------------------------------------------------------- editorial cards */
.tiles{display:grid;grid-template-columns:repeat(auto-fill,minmax(258px,1fr));gap:1px;
  background:var(--line);border:1px solid var(--line);margin:20px 0 8px}
.tile{background:var(--bg);padding:0;display:flex;flex-direction:column;min-height:100%}
.tile:hover{background:var(--bg2)}
.tile figure{margin:0;height:152px;overflow:hidden;background:var(--line-soft)}
.tile figure img{width:100%;height:100%;object-fit:cover;transition:transform .5s ease}
.tile:hover figure img{transform:scale(1.045)}
.tile .tbody{padding:15px 17px 18px;display:flex;flex-direction:column;gap:6px;flex:1}
.tile h3{font-size:18px;margin:0}
.tile p{font-size:13.5px;color:var(--muted);line-height:1.55;margin:0}
.tile .tmeta{margin-top:auto;padding-top:10px;font:500 11px/1 var(--sans);letter-spacing:.11em;
  text-transform:uppercase;color:var(--accent-soft);display:flex;justify-content:space-between;gap:10px}
.tile .sym{font-family:var(--mono);font-size:12px;color:var(--muted);letter-spacing:0}

/* ranked "→" cards, hairlines only */
.ranks{display:grid;grid-template-columns:repeat(auto-fit,minmax(255px,1fr));gap:0;
  border-top:1px solid var(--line);margin:0 0 8px}
.rank{display:block;padding:18px 22px 18px 0;border-bottom:1px solid var(--line)}
.rank .rl{font:600 10px/1 var(--sans);letter-spacing:.15em;text-transform:uppercase;color:var(--muted)}
.rank .rn{font-family:var(--serif);font-size:22px;margin:9px 0 3px;display:flex;gap:10px;align-items:baseline}
.rank .rn::after{content:"→";color:var(--accent);font-size:16px;font-family:var(--sans)}
.rank .rv{font-family:var(--mono);font-size:13.5px;color:var(--accent-soft)}
.rank .rnote{font-size:11.5px;color:var(--muted);margin-top:5px}
.rank:hover .rn{color:var(--accent)}

/* ------------------------------------------------------------------ tables */
.tblwrap{position:relative;overflow-x:auto;margin:14px 0 6px;-webkit-overflow-scrolling:touch}
table.data{width:100%;border-collapse:collapse;font-size:14px}
table.data th{font:600 10.5px/1.3 var(--sans);letter-spacing:.12em;text-transform:uppercase;
  color:var(--muted);text-align:right;padding:0 12px 9px;border-bottom:1px solid var(--line);
  white-space:nowrap;vertical-align:bottom}
table.data td{padding:10px 12px;border-bottom:1px solid var(--line-soft);text-align:right;
  white-space:nowrap;font-family:var(--mono);font-variant-numeric:tabular-nums;font-size:13.5px}
table.data th.namecol,table.data td.namecol{text-align:left;white-space:normal;
  font-family:var(--sans);font-size:14.5px;min-width:180px}
table.data th.wide,table.data td.wide{text-align:left;white-space:normal;font-family:var(--sans);font-size:14px}
table.data tbody tr:hover td{background:var(--line-soft)}
table.data td.namecol a{font-weight:500}
table.data .sub{display:block;font:400 12px/1.4 var(--sans);color:var(--muted);margin-top:2px}
table.data tfoot td{border-top:1px solid var(--line);border-bottom:0;font-weight:600;color:var(--fg)}
table.data.sortable th{cursor:pointer}
table.data.sortable th:hover{color:var(--fg)}
.wd{color:var(--muted);font-family:var(--sans);font-size:12.5px;font-style:italic}
.favstar{background:none;border:0;cursor:pointer;color:var(--line);font-size:14px;padding:0 6px 0 0;
  font-family:var(--sans)}
.favstar:hover{color:var(--gold)}
.favstar.on{color:var(--gold)}
/* pinned first column with scroll shadows on narrow screens */
@media (max-width:760px){
  .tblwrap.pin table.data td.namecol,.tblwrap.pin table.data th.namecol{
    position:sticky;left:0;background:var(--bg);z-index:2;min-width:140px;
    box-shadow:1px 0 0 var(--line)}
  .tblwrap.pin tbody tr:hover td.namecol{background:var(--line-soft)}
  .tblwrap.pin::before,.tblwrap.pin::after{content:"";position:sticky;top:0;display:block;width:14px;height:0}
}
.scrollhint{font-size:11.5px;color:var(--muted);margin:-2px 0 12px;display:none}
@media (max-width:760px){.scrollhint{display:block}}

/* share bars inside a table cell — a rule, not a filled box */
.bar{display:block;height:2px;background:var(--accent);margin-top:5px;min-width:1px;opacity:.85}
.bar.alt{background:var(--patina)}

/* ------------------------------------------------------------- depth switch */
.depthbar{display:flex;flex-wrap:wrap;align-items:center;gap:0;border-top:1px solid var(--line);
  border-bottom:1px solid var(--line);margin:26px 0 22px}
.depthbar .dlabel{font:600 10px/1 var(--sans);letter-spacing:.15em;text-transform:uppercase;
  color:var(--muted);padding:14px 18px 14px 0;flex:0 0 auto}
.depthbar a{padding:13px 16px;font-size:13px;color:var(--muted);border-left:1px solid var(--line-soft);
  display:flex;flex-direction:column;gap:2px;flex:1;min-width:120px}
.depthbar a b{font-size:13.5px;font-weight:600;color:var(--fg-dim)}
.depthbar a small{font-size:11px;line-height:1.35;color:var(--muted)}
.depthbar a.cur{background:var(--line-soft)}
.depthbar a.cur b{color:var(--accent)}
.depthbar a:hover b{color:var(--fg)}
.leveltag{font:600 10px/1 var(--sans);letter-spacing:.13em;text-transform:uppercase;color:var(--muted);
  border:1px solid var(--line);padding:4px 8px;margin-right:8px;vertical-align:2px}

/* ------------------------------------------------------------- chain flow */
.flow{display:grid;gap:1px;background:var(--line);border:1px solid var(--line);margin:26px 0}
.flow.h{grid-template-columns:repeat(auto-fit,minmax(146px,1fr))}
.flowstep{background:var(--bg);padding:16px 15px;display:flex;flex-direction:column;gap:6px;min-height:112px}
.flowstep:hover{background:var(--bg2)}
.flowstep .fs{font:600 9.5px/1 var(--sans);letter-spacing:.15em;text-transform:uppercase;color:var(--accent-soft)}
.flowstep .ft{font-family:var(--serif);font-size:16px;line-height:1.25}
.flowstep .fd{font-size:12px;color:var(--muted);line-height:1.45}
.flowstep .fn{margin-top:auto;padding-top:8px;font-size:11.5px;color:var(--muted)}
.flowstep .fn::after{content:" →";color:var(--accent)}
/* the long-form chain: numbered stages down the page with an image each */
.chainstep{display:grid;grid-template-columns:74px minmax(0,1fr) 260px;gap:26px;align-items:start;
  padding:30px 0;border-top:1px solid var(--line)}
.chainstep .cno{font-family:var(--mono);font-size:12px;color:var(--muted);padding-top:5px}
.chainstep .cno b{display:block;font:600 10px/1.3 var(--sans);letter-spacing:.13em;text-transform:uppercase;
  color:var(--accent-soft);margin-top:6px;white-space:nowrap}
.chainstep h3{margin:0 0 8px;font-size:21px}
.chainstep p{font-size:15px;color:var(--fg-dim);margin:0 0 10px;max-width:58ch}
.chainstep figure{margin:0}
.chainstep figure img{width:100%;height:160px;object-fit:cover}
.chainstep figcaption{font-size:11px;color:var(--muted);margin-top:6px;line-height:1.4}

/* ------------------------------------------------------------------- maps */
.mapwrap{position:relative;border:1px solid var(--line);background:var(--bg2);overflow:hidden;margin:16px 0}
.mapwrap svg{display:block;width:100%;height:auto}
.mapdot{fill:var(--accent);fill-opacity:.42;stroke:var(--accent);stroke-width:.7}
.mapdot.mine{fill:var(--patina);fill-opacity:.9;stroke:none}
.mapdot.fac{fill:var(--gold);fill-opacity:.9;stroke:none}
.maplbl{font:500 8.5px var(--sans);fill:var(--fg-dim)}
.maplegend{display:flex;flex-wrap:wrap;gap:18px;font-size:12px;color:var(--muted);padding:10px 14px;
  border-top:1px solid var(--line)}
.maplegend i{display:inline-block;width:9px;height:9px;border-radius:50%;margin-right:6px;vertical-align:0}

/* heat map — the ONE place a filled block is the chart */
.heat{display:grid;grid-template-columns:repeat(auto-fill,minmax(112px,1fr));gap:2px;margin:16px 0}
.heatcell{padding:11px 10px;min-height:76px;display:flex;flex-direction:column;justify-content:space-between;
  color:#0d0f10;font-size:12px}
.heatcell b{font-family:var(--sans);font-weight:600;font-size:12.5px;line-height:1.25}
.heatcell span{font-family:var(--mono);font-size:11.5px}

/* --------------------------------------------------------------- calculator */
.calcbar{display:flex;flex-wrap:wrap;gap:22px;align-items:flex-end;padding:20px 0;
  border-top:1px solid var(--line);border-bottom:1px solid var(--line);margin:20px 0 8px}
.field{display:flex;flex-direction:column;gap:6px;min-width:180px}
.field label{font:600 10px/1 var(--sans);letter-spacing:.14em;text-transform:uppercase;color:var(--muted)}
.field input,.field select{background:transparent;border:0;border-bottom:1px solid var(--line);
  color:var(--fg);font:400 16px var(--sans);padding:7px 2px;outline:none;min-width:180px}
.field input:focus,.field select:focus{border-bottom-color:var(--accent)}
.field select option{background:var(--bg2);color:var(--fg)}
.bigfig{font-family:var(--mono);font-size:clamp(26px,4vw,42px);font-weight:500;letter-spacing:-.02em;
  line-height:1.05}
.bigfig small{display:block;font:400 12px/1.4 var(--sans);color:var(--muted);letter-spacing:.06em;
  text-transform:uppercase;margin-top:8px}

/* ------------------------------------------------------------------ charts */
.spark{width:100%;height:120px;display:block}
.spark path{fill:none;stroke:var(--accent);stroke-width:1.6}
.spark .area{fill:color-mix(in srgb,var(--accent) 14%,transparent);stroke:none}
.spark .axis{stroke:var(--line);stroke-width:1}
.chartmeta{display:flex;justify-content:space-between;font:400 11px var(--mono);color:var(--muted);
  margin-top:4px}

/* -------------------------------------------------------------------- news */
.newsrow{display:grid;grid-template-columns:minmax(0,1fr) 130px;gap:22px;padding:20px 0;
  border-bottom:1px solid var(--line-soft);align-items:start}
.newsrow.noimg{grid-template-columns:minmax(0,1fr)}
.newsrow h3{font-size:19px;margin:0 0 7px;line-height:1.3}
.newsrow p{font-size:13.5px;color:var(--muted);margin:0 0 8px;line-height:1.55}
.newsrow .meta{font:500 11px/1 var(--sans);letter-spacing:.1em;text-transform:uppercase;color:var(--muted);
  display:flex;flex-wrap:wrap;gap:12px}
.newsrow .meta b{color:var(--accent-soft);font-weight:600}
.newsrow img{width:130px;height:88px;object-fit:cover}
.newsrow:hover h3{color:var(--accent)}

/* --------------------------------------------------------------- ask + forms */
.askbox{border-top:1px solid var(--line);border-bottom:1px solid var(--line);padding:24px 0;margin:22px 0}
#askForm{display:flex;gap:14px;align-items:flex-end}
#askInput{flex:1;background:transparent;border:0;border-bottom:1px solid var(--line);color:var(--fg);
  font:400 18px var(--sans);padding:10px 2px;outline:none}
#askInput:focus{border-bottom-color:var(--accent)}
.ask-out{margin-top:20px;padding-top:18px;border-top:1px solid var(--line-soft)}
.ask-out p{font-family:var(--serif);font-size:17.5px;line-height:1.62}
.ask-links{display:flex;flex-wrap:wrap;gap:7px;margin-top:12px}
.formstack{display:flex;flex-direction:column;gap:16px;max-width:540px;margin:20px 0}
.formstack textarea{background:transparent;border:1px solid var(--line);color:var(--fg);
  font:400 15px var(--sans);padding:11px;min-height:140px;outline:none}
.formstack textarea:focus{border-color:var(--accent)}
.hp{position:absolute;left:-9999px;height:0;width:0;opacity:0}
.prompt-text{white-space:pre-wrap;font:400 12.5px/1.6 var(--mono);color:var(--fg-dim);
  border-left:2px solid var(--line);padding:0 0 0 15px;margin:0 0 14px}

/* guided-mode helper text (hidden in expert mode) */
.guide-help{display:none;border-left:2px solid var(--patina);padding:2px 0 2px 16px;margin:14px 0;
  font-size:14px;line-height:1.6;color:var(--fg-dim);max-width:66ch}
body.guided .guide-help{display:block}
body.guided .expert-only{display:none}

/* ------------------------------------------------------------------ footer */
.megafoot{border-top:1px solid var(--line);margin-top:70px;background:var(--bg2)}
.megafoot .inner{max-width:var(--maxw);margin:0 auto;padding:44px 20px 30px;
  display:grid;grid-template-columns:repeat(auto-fit,minmax(178px,1fr));gap:34px}
.megafoot h4{font:600 10px/1 var(--sans);letter-spacing:.16em;text-transform:uppercase;
  color:var(--muted);margin:0 0 14px}
.megafoot a{display:block;padding:4px 0;font-size:13.5px;color:var(--fg-dim)}
.megafoot a:hover{color:var(--accent)}
.footer{background:var(--bg2);border-top:1px solid var(--line)}
.footer .inner{max-width:var(--maxw);margin:0 auto;padding:26px 20px 46px}
.f-sub{display:flex;flex-wrap:wrap;gap:12px;align-items:center;padding:20px 0;
  border-bottom:1px solid var(--line)}
.f-sub input{background:transparent;border:0;border-bottom:1px solid var(--line);color:var(--fg);
  font:400 14px var(--sans);padding:8px 2px;min-width:240px;outline:none}
.f-family{padding:20px 0;border-bottom:1px solid var(--line);font-size:13px;color:var(--muted);
  display:flex;flex-wrap:wrap;gap:10px 18px;align-items:center}
.f-family a{color:var(--fg-dim);font-weight:500}
.f-family a:hover{color:var(--accent)}
.f-legal{padding-top:22px;font-size:11.5px;line-height:1.68;color:var(--muted);max-width:96ch}
.f-legal p{margin:0 0 10px}
.f-legal a{text-decoration:underline}

/* ---------------------------------------------------------------- misc pages */
.legalpage{max-width:72ch}
.legalpage h2{font-size:20px;margin:34px 0 10px}
.legalpage p,.legalpage li{font-size:15px;line-height:1.72;color:var(--fg-dim)}
.dirgrid{display:grid;grid-template-columns:repeat(auto-fill,minmax(190px,1fr));gap:2px 26px;margin:14px 0 28px}
.dirgrid a{padding:6px 0;font-size:14px;border-bottom:1px solid var(--line-soft);
  display:flex;justify-content:space-between;gap:10px;align-items:baseline}
.dirgrid a span{font-family:var(--mono);font-size:11.5px;color:var(--muted)}
.gterm{padding:20px 0;border-bottom:1px solid var(--line-soft)}
.gterm h3{margin:0 0 6px;font-size:20px}
.gterm .plain{font-size:15.5px;color:var(--fg);margin:0 0 8px;max-width:70ch}
.gterm .tech{font-size:14px;color:var(--muted);max-width:74ch;margin:0}
.emptynote{padding:26px 0;color:var(--muted);font-size:14.5px;border-top:1px solid var(--line)}

/* -------------------------------------------------------- responsive pass */
@media (max-width:1180px){
  .mainnav>a,.mainnav .ddbtn{padding:9px 7px;font-size:12.5px}
  .topbar{gap:12px;padding:0 14px}
  .searchwrap{flex-basis:170px}
  .tagline{display:none}
}
@media (max-width:1000px){
  .mainnav{display:none}
  .burger{display:block}
  .split{grid-template-columns:1fr;gap:34px}
  .rail{position:static}
  .chainstep{grid-template-columns:52px minmax(0,1fr);gap:18px}
  .chainstep figure{grid-column:2}
}
@media (max-width:760px){
  .page{padding:22px 16px 6px}
  .hero{min-height:min(72vh,520px)}
  .hero.short{min-height:340px}
  .hero-inner{padding:0 16px 34px}
  .depthrail{display:none}
  .hero-credit{max-width:70%;font-size:9px}
  .hero-search input{font-size:16px}
  .tiles{grid-template-columns:repeat(auto-fill,minmax(228px,1fr))}
  .tile figure{height:132px}
  .newsrow{grid-template-columns:minmax(0,1fr) 92px;gap:14px}
  .newsrow img{width:92px;height:66px}
  .depthbar .dlabel{width:100%;padding:12px 0 4px}
  .depthbar a{border-left:0;border-top:1px solid var(--line-soft);min-width:50%}
  .depthbar a small{display:none}
  .bleed{height:230px;margin:34px calc(50% - 50vw)}
  table.data{font-size:13px}
  table.data td{padding:9px 9px;font-size:12.5px}
  table.data th{padding:0 9px 8px}
  .kv{grid-template-columns:1fr;gap:0}
  .kv dt{padding-bottom:0;border-top:1px solid var(--line-soft)}
  .kv dd{padding-top:2px;border-top:0}
  #askForm{flex-direction:column;align-items:stretch;gap:16px}
  .megafoot .inner{grid-template-columns:repeat(2,1fr);gap:24px}
  .calcbar{gap:16px}
  .field,.field input,.field select{min-width:100%}
}
@media (max-width:420px){
  .tiles{grid-template-columns:1fr}
  .logo{font-size:17px}
  .searchwrap{flex-basis:110px}
}
@media (prefers-reduced-motion:reduce){
  *{transition:none!important;animation:none!important}
  .tile:hover figure img{transform:none}
}
@media print{
  .topbar,.offcanvas,.oc-backdrop,.megafoot,.hero-search,.depthbar{display:none}
  body{background:#fff;color:#000}
}

/* ------------------------------------------------- periodic table view */
.ptwrap{overflow-x:auto;margin:20px 0 8px;-webkit-overflow-scrolling:touch}
.ptable{display:grid;grid-template-columns:repeat(18,minmax(52px,1fr));gap:3px;min-width:1000px}
.ptable.inner{margin-top:12px;grid-template-rows:repeat(2,auto)}
.pt{display:flex;flex-direction:column;justify-content:center;gap:2px;padding:6px 5px;min-height:54px;
  border:1px solid var(--line);text-align:left}
.pt b{font-family:var(--mono);font-size:14px;font-weight:600;line-height:1}
.pt span{font-size:8.5px;line-height:1.15;color:var(--muted);overflow:hidden;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical}
.pt.off{opacity:.34}
.pt.off b{color:var(--muted)}
.pt.on{border-color:var(--patina)}
.pt.on b{color:var(--fg)}
.pt.on:hover{border-color:var(--accent);background:var(--line-soft)}
.pt.on.crit{border-color:var(--accent)}
.pt.on.crit b{color:var(--accent)}
.pt.lbl{border-style:dashed;border-color:var(--line);opacity:.6}
.pt.lbl b{font-size:10px;color:var(--muted)}
@media (max-width:760px){
  .ptable{grid-template-columns:repeat(18,44px);min-width:830px;gap:2px}
  .pt{min-height:44px;padding:4px 3px}
  .pt b{font-size:12px}
  .pt span{display:none}
}

/* a full-bleed band used inside the two-column material layout: it has to escape
   both the grid column and the page gutter, and the caption stays readable */
.split .bleed{margin-left:calc(50% - 50vw);margin-right:calc(50% - 50vw);width:100vw}
.bleed figcaption b{color:#fff}
.bleed figcaption a{color:rgba(244,241,234,.9);text-decoration:underline}
@media (max-width:1000px){.split .bleed{margin-left:-16px;margin-right:-16px;width:auto}}

/* A hero with no photograph should not be a tall empty band: collapse it to a
   headline block with the section's own colour, and drop the depth rail. */
.hero.noimg{min-height:0;padding-top:44px;background:linear-gradient(180deg,#121516,var(--bg))}
.hero.noimg::after{display:none}
.hero.noimg .depthrail,.hero.noimg .hero-credit{display:none}
.hero.noimg .hero-inner{padding-bottom:34px}
.hero.noimg .hero-inner h1{color:var(--fg);text-shadow:none}
.hero.noimg .hero-inner .lede{color:var(--fg-dim);text-shadow:none}
[data-theme="light"] .hero.noimg{background:linear-gradient(180deg,#efece3,var(--bg))}

/* ------------------------------------------ original geological diagrams */
.diagram{margin:26px 0 22px}
.dia-head{font:600 10px/1 var(--sans);letter-spacing:.15em;text-transform:uppercase;
  color:var(--muted);margin:0 0 8px}
.dia-head b{color:var(--fg-dim);font-weight:600}
.dia-svg{width:100%;height:auto;display:block;border:1px solid var(--line);background:var(--bg2)}
.dia-air{fill:var(--bg)}
.dia-rock{fill:color-mix(in srgb,var(--fg) 7%,transparent)}
.dia-zone1{fill:color-mix(in srgb,var(--patina) 20%,transparent)}
.dia-zone2{fill:color-mix(in srgb,var(--accent) 14%,transparent)}
.dia-body{fill:color-mix(in srgb,var(--accent) 30%,transparent)}
.dia-cap{fill:color-mix(in srgb,var(--fg) 13%,transparent)}
.dia-pit{fill:var(--bg)}
.dia-vein{stroke:var(--accent);stroke-width:1;fill:none;opacity:.5}
.dia-line{stroke:var(--fg-dim);stroke-width:1}
.dia-arrow{stroke:var(--accent);stroke-width:1.4;fill:none}
.dia-l{font:500 11px var(--sans);fill:var(--fg)}
.dia-d{font:500 9.5px var(--mono);fill:var(--muted)}
@media (max-width:600px){.dia-l{font-size:9.5px}.dia-d{font-size:8px}}

/* the crystal-lattice motif at the right edge of a hero */
.lattice{position:absolute;right:26px;top:0;bottom:0;height:100%;width:132px;z-index:2;
  pointer-events:none;opacity:.5}
.lattice path{fill:none;stroke:var(--accent-soft);stroke-width:1.1;stroke-linejoin:round}
.lattice circle{fill:var(--accent-soft);opacity:.85}
.lattice .lat-strata{stroke:var(--patina);stroke-width:1.6;opacity:.9}
.hero.short .lattice{opacity:.34}
@media (max-width:1100px){.lattice{display:none}}

/* the "United States, recent years" extract in the rail: the measure string is
   what distinguishes two otherwise identical price rows (flake vs lump graphite),
   so it must be allowed to wrap rather than be truncated into ambiguity */
.rail table.data td.namecol{white-space:normal;min-width:0;line-height:1.35}
.rail table.data td,.rail table.data th{padding:7px 6px}

/* ==================================================== custody journeys === */
/* the country route strip: the whole trip in one line */
.routestrip{display:flex;align-items:stretch;gap:0;overflow-x:auto;margin:18px 0 6px;
  border-top:1px solid var(--line);border-bottom:1px solid var(--line);
  scrollbar-width:none;-webkit-overflow-scrolling:touch}
.routestrip::-webkit-scrollbar{display:none}
.rs-node{display:flex;flex-direction:column;gap:3px;padding:14px 20px 14px 0;flex:0 0 auto}
.rs-n{font:600 10px/1 var(--mono);color:var(--accent-soft);letter-spacing:.08em}
.rs-c{font-family:var(--serif);font-size:18px;line-height:1.1;white-space:nowrap}
.rs-s{font:500 10px/1 var(--sans);letter-spacing:.13em;text-transform:uppercase;color:var(--muted)}
.rs-node:hover .rs-c{color:var(--accent)}
.rs-arrow{align-self:center;color:var(--line);font-size:16px;padding:0 20px 0 0;flex:0 0 auto}

/* the mass balance: what you started with, what you ended up with */
.massbal{display:grid;grid-template-columns:auto 1fr auto;gap:18px;align-items:center;
  padding:22px 0;border-bottom:1px solid var(--line);margin-bottom:8px}
.mb-end{display:flex;flex-direction:column;gap:4px;max-width:280px}
.mb-end.right{text-align:right;align-items:flex-end}
.mb-q{font-family:var(--mono);font-size:clamp(20px,3vw,30px);font-weight:500;line-height:1;
  letter-spacing:-.02em}
.mb-q em{font-style:normal;font-size:.5em;color:var(--muted);margin-left:5px;letter-spacing:.04em}
.mb-l{font-size:12.5px;color:var(--muted);line-height:1.4}
.mb-mid{position:relative;display:flex;flex-direction:column;align-items:center;gap:8px}
.mb-track{display:block;width:100%;height:0;border-top:1px solid var(--line);position:relative}
.mb-track::after{content:"→";position:absolute;right:-2px;top:-11px;color:var(--accent);font-size:15px}
.mb-cap{font:500 10.5px/1 var(--sans);letter-spacing:.12em;text-transform:uppercase;color:var(--muted);
  text-align:center}

/* the route map */
.jmap svg{background:var(--bg2)}
.jarc{fill:none;stroke:var(--accent);stroke-width:1.6;opacity:.75;stroke-linecap:round}
.jnode circle{fill:var(--bg2);stroke:var(--accent);stroke-width:1.8}
.jnode:hover circle{fill:var(--accent)}
.jnum{font:600 9px var(--mono);fill:var(--fg)}
.jnode:hover .jnum{fill:var(--ink-on-accent)}
.jlbl{font:600 9.5px var(--sans);fill:var(--fg-dim);paint-order:stroke;
  stroke:var(--bg2);stroke-width:3px}

/* a step */
.jstep{display:grid;grid-template-columns:96px minmax(0,1fr) 240px;gap:26px;align-items:start;
  padding:30px 0;border-top:1px solid var(--line)}
.js-rail{display:flex;flex-direction:column;gap:6px;padding-top:3px;position:sticky;top:80px}
.js-no{font-family:var(--mono);font-size:19px;color:var(--muted);line-height:1}
.js-stage{font:600 9.5px/1.3 var(--sans);letter-spacing:.14em;text-transform:uppercase;
  color:var(--accent-soft)}
.js-qty{font-family:var(--mono);font-size:13px;color:var(--fg);margin-top:6px;line-height:1.2}
.js-qty em{font-style:normal;display:block;font-size:10px;color:var(--muted)}
.js-where{font-size:13.5px;margin:0 0 4px;display:flex;flex-wrap:wrap;gap:0 8px;align-items:baseline}
.js-where b{font-family:var(--serif);font-size:17px;font-weight:600}
.js-cust{color:var(--muted);font-size:12.5px}
.js-body h3{margin:0 0 8px;font-size:21px}
.js-action{font-size:15.5px;line-height:1.66;color:var(--fg-dim);margin:0 0 12px;max-width:60ch}
.js-bal{display:flex;flex-wrap:wrap;align-items:center;gap:14px;padding:12px 0;margin:0 0 10px;
  border-top:1px solid var(--line-soft);border-bottom:1px solid var(--line-soft)}
.jb{display:flex;flex-direction:column;gap:2px}
.jb b{font-family:var(--mono);font-size:15px;font-weight:500;letter-spacing:-.01em}
.jb em{font-style:normal;font-size:11.5px;color:var(--muted);max-width:34ch;line-height:1.35}
.jb.out b{color:var(--accent)}
.jb-arrow{color:var(--line);font-size:17px}
.js-loss,.js-why{font-size:13.5px;line-height:1.6;color:var(--muted);margin:0 0 7px;max-width:62ch}
.js-loss b,.js-why b{color:var(--fg-dim);font-weight:600}
.js-alt{margin-top:14px;padding-left:15px;border-left:2px solid var(--patina);font-size:13px;
  line-height:1.55;max-width:62ch}
.js-alt-l{display:block;font:600 9.5px/1 var(--sans);letter-spacing:.14em;text-transform:uppercase;
  color:var(--patina);margin-bottom:5px}
.js-img{margin:0}
.js-img img{width:100%;height:150px;object-fit:cover}
.js-img figcaption{font-size:10.5px;color:var(--muted);margin-top:6px;line-height:1.4}

/* a journey card in the directory */
.jcard{display:grid;grid-template-columns:230px minmax(0,1fr);gap:26px;align-items:stretch;
  padding:24px 0;border-top:1px solid var(--line)}
.jcard:last-of-type{border-bottom:1px solid var(--line)}
.jcard figure{margin:0;height:100%;min-height:150px;overflow:hidden;background:var(--line-soft)}
.jcard figure img{width:100%;height:100%;object-fit:cover;transition:transform .5s ease}
.jcard:hover figure img{transform:scale(1.04)}
.jc-meta{font:500 10.5px/1 var(--sans);letter-spacing:.12em;text-transform:uppercase;
  color:var(--accent-soft);margin:0 0 8px}
.jcard h3{margin:0 0 7px;font-size:23px}
.jcard:hover h3{color:var(--accent)}
.jc-head{font-size:15px;color:var(--fg-dim);margin:0 0 10px;max-width:66ch;line-height:1.55}
.jc-route{font-family:var(--mono);font-size:12.5px;color:var(--fg);margin:0 0 8px;
  letter-spacing:-.01em}
.jc-nums{display:flex;flex-wrap:wrap;gap:0 18px;font-size:11.5px;color:var(--muted);margin:0}

@media (max-width:1000px){
  .jstep{grid-template-columns:70px minmax(0,1fr);gap:16px}
  .js-img{grid-column:2}
  .js-rail{position:static}
}
@media (max-width:760px){
  .massbal{grid-template-columns:1fr;gap:12px;text-align:left}
  .mb-end.right{text-align:left;align-items:flex-start}
  .mb-mid{align-items:flex-start}
  .mb-track::after{right:auto;left:0;top:-11px;content:"↓"}
  .jcard{grid-template-columns:1fr;gap:14px}
  .jcard figure{min-height:170px;max-height:190px}
  .jc-route{font-size:11.5px}
  .jstep{grid-template-columns:56px minmax(0,1fr);gap:12px}
  .js-bal{flex-direction:column;align-items:flex-start;gap:8px}
  .jb-arrow{transform:rotate(90deg)}
}

/* a journey listed on a material, country, mine or plant page */
.jrow{display:grid;grid-template-columns:minmax(0,1fr);gap:3px;padding:16px 0;
  border-bottom:1px solid var(--line-soft)}
.jr-name{font-family:var(--serif);font-size:19px;line-height:1.25}
.jrow:hover .jr-name{color:var(--accent)}
.jr-head{font-size:13.5px;color:var(--muted);line-height:1.5}
.jr-meta{font:500 11px/1 var(--sans);letter-spacing:.1em;text-transform:uppercase;
  color:var(--accent-soft);margin-top:3px}

/* map ↔ step linking */
.jnode circle{transition:fill .18s ease,r .18s ease}
.jnode.cur circle{fill:var(--accent);r:11}
.jnode.cur .jnum{fill:var(--ink-on-accent)}
.jnode{cursor:pointer}
.jarc{transition:opacity .18s ease,stroke-width .18s ease;opacity:.28}
.jarc.cur{opacity:.9;stroke-width:2.1}
.jstep.flash{background:color-mix(in srgb,var(--accent) 7%,transparent)}
.jstep{transition:background .4s ease}
@media (prefers-reduced-motion:reduce){
  .jnode circle,.jarc,.jstep{transition:none}
}

/* ===================================================== homepage substance ===
   The complaint this answers: the page looked handsome and said very little.
   These blocks put real, sourced figures above the fold-and-a-bit, so the first
   thing a visitor does is learn something rather than choose a menu item. */
.sectionhead.tight{margin-top:26px}

/* the facts band — a big number, a claim, its source */
.facts{display:grid;grid-template-columns:repeat(auto-fill,minmax(258px,1fr));gap:1px;
  background:var(--line);border-top:1px solid var(--line);border-bottom:1px solid var(--line);
  margin:0 0 4px}
.fact{background:var(--bg);padding:18px 20px 20px;display:flex;flex-direction:column;gap:7px}
.fact:hover{background:var(--bg2)}
.fact-fig{font-family:var(--mono);font-size:clamp(24px,2.9vw,33px);font-weight:500;line-height:1;
  letter-spacing:-.025em;color:var(--accent)}
.fact-claim{font-family:var(--serif);font-size:16.5px;line-height:1.4;color:var(--fg)}
.fact-src{margin-top:auto;padding-top:8px;font:500 10px/1.3 var(--sans);letter-spacing:.1em;
  text-transform:uppercase;color:var(--muted)}
.fact:hover .fact-claim{color:var(--accent-soft)}

/* the nine stages, again but with real places in them */
.worked{display:flex;align-items:stretch;gap:0;overflow-x:auto;padding-bottom:6px;
  scrollbar-width:none;-webkit-overflow-scrolling:touch;margin:0 0 6px}
.worked::-webkit-scrollbar{display:none}
.wk{flex:0 0 168px;display:flex;flex-direction:column;gap:5px;padding-right:16px}
.wk figure{margin:0;height:96px;overflow:hidden;background:var(--line-soft)}
.wk figure.blank{background:repeating-linear-gradient(135deg,var(--line-soft),var(--line-soft) 6px,var(--bg2) 6px,var(--bg2) 12px)}
.wk figure img{width:100%;height:100%;object-fit:cover}
.wk-s{font:600 9px/1 var(--sans);letter-spacing:.15em;text-transform:uppercase;color:var(--accent-soft);
  margin-top:4px}
.wk-t{font-family:var(--serif);font-size:14.5px;line-height:1.25}
.wk-c{font:500 10.5px/1 var(--sans);letter-spacing:.08em;text-transform:uppercase;color:var(--muted)}
.wk:hover .wk-t{color:var(--accent)}
.wk-arrow{align-self:center;color:var(--line);font-size:15px;padding:0 14px 0 0;flex:0 0 auto}

/* three concrete ways in, each showing a result rather than a label */
.tryit{gap:1px;background:var(--line);border-top:1px solid var(--line);
  border-bottom:1px solid var(--line);margin:16px 0 8px}
.try{background:var(--bg);padding:20px 22px 22px;display:flex;flex-direction:column;gap:9px}
.try:hover{background:var(--bg2)}
.try-l{font:600 10px/1 var(--sans);letter-spacing:.15em;text-transform:uppercase;color:var(--muted)}
.try b{font-family:var(--serif);font-size:19px;font-weight:600;line-height:1.32}
.try-d{font-size:13.5px;color:var(--muted);line-height:1.55}
.try-go{margin-top:auto;padding-top:8px;font-size:13px;color:var(--accent);font-weight:500}

/* a compact index instead of twelve near-identical cards */
.dirstrip{display:grid;grid-template-columns:repeat(auto-fill,minmax(178px,1fr));gap:0 26px;
  margin:26px 0 8px;border-top:1px solid var(--line)}
.dirstrip a{display:flex;justify-content:space-between;align-items:baseline;gap:10px;
  padding:10px 0;border-bottom:1px solid var(--line-soft);font-size:14.5px}
.dirstrip a b{font-weight:500}
.dirstrip a span{font-family:var(--mono);font-size:11.5px;color:var(--muted)}
.dirstrip a:hover b{color:var(--accent)}

@media (max-width:760px){
  .facts{grid-template-columns:1fr 1fr}
  .fact{padding:14px 15px 16px}
  .fact-claim{font-size:14px}
  .wk{flex-basis:140px}
  .wk figure{height:80px}
  .dirstrip{grid-template-columns:1fr 1fr;gap:0 18px}
}
@media (max-width:440px){.facts{grid-template-columns:1fr}}


/* a plain strip of links where a grid of photo cards would only repeat what the
   section above it already said with more depth */
.chipstrip{display:flex;flex-wrap:wrap;gap:7px;margin:0 0 10px}