/* ── tokens: DESIGN.md "Apurv Duhan — Delivery Record" + Data visualization ── */
:root{
  --neutral:#06080D; --surface:#0C111B; --surface-raised:#121927;
  --on-surface:#ECF1FA; --on-surface-muted:#93A3BA;
  --primary:#E9B04A; --on-primary:#14100A;
  --rule:#1B2432; --rule-hover:#2A3648;
  --positive:#4FD1A0; --negative:#E8716A;
  --steel-100:#3D4D6B; --steel-200:#55698B; --steel-300:#7189A9; --steel-400:#95A9C4;
  --r-sm:3px; --r-md:8px; --r-full:999px;
  --serif:'Newsreader',Georgia,serif;
  --sans:'Inter',system-ui,-apple-system,sans-serif;
  --ease-out:cubic-bezier(.22,1,.36,1); --ease-io:cubic-bezier(.4,0,.2,1);
  --section:clamp(120px,18vh,200px);
}
*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}}
body{font-family:var(--sans);font-weight:300;font-size:1.0625rem;line-height:1.75;
  background:var(--neutral);color:var(--on-surface);overflow-x:hidden;
  -webkit-font-smoothing:antialiased}
::selection{background:var(--primary);color:var(--on-primary)}
img{display:block;max-width:100%}
a{color:inherit;text-decoration:none}
button{font:inherit;color:inherit;background:none;border:0;cursor:pointer;touch-action:manipulation}
:focus-visible{outline:2px solid var(--primary);outline-offset:3px;border-radius:var(--r-sm)}
body::before{content:"";position:fixed;inset:0;z-index:-1;pointer-events:none;
  background:radial-gradient(900px 620px at 84% -8%,rgba(233,176,74,.045),transparent 62%)}

.wrap{max-width:1120px;margin:0 auto;padding:0 28px}
@media(min-width:900px){.wrap{padding:0 40px}}
.skip{position:absolute;left:-999px;top:12px;background:var(--primary);color:var(--on-primary);
  padding:8px 14px;border-radius:var(--r-sm);z-index:200}
.skip:focus{left:12px}

/* ── type ─────────────────────────────────────────────────────────────── */
.display{font-family:var(--serif);font-weight:400;font-size:clamp(2.4rem,5.2vw,3.6rem);
  line-height:1.08;letter-spacing:-.01em}
h2.head{font-family:var(--serif);font-weight:400;font-size:clamp(1.75rem,3vw,2.25rem);
  line-height:1.1;letter-spacing:-.01em;margin:12px 0 20px}
.head-sm{font-family:var(--serif);font-weight:400;font-size:1.5rem;line-height:1.2;letter-spacing:-.01em}
.label{font-family:var(--sans);font-size:.6875rem;font-weight:500;letter-spacing:.2em;
  text-transform:uppercase;line-height:1.2}
.eyebrow{color:var(--primary)}
.lede{color:var(--on-surface-muted);max-width:62ch;font-size:1.0625rem}
p{max-width:62ch}
.muted{color:var(--on-surface-muted)}
.data{font-size:.75rem;font-weight:400;letter-spacing:.01em;line-height:1.4;font-variant-numeric:tabular-nums}
.num{font-variant-numeric:tabular-nums}

/* ── quiet link ───────────────────────────────────────────────────────── */
.qlink{display:inline-flex;align-items:center;gap:8px;color:var(--on-surface-muted);
  font-size:.9375rem;font-weight:300;line-height:1.4;
  border-bottom:1px solid var(--rule);padding:0 0 4px;cursor:pointer;
  transition:color .3s var(--ease-io),border-color .3s var(--ease-io)}
.qlink:hover{color:var(--on-surface);border-color:var(--primary)}
.qlink svg{width:13px;height:13px;fill:currentColor;flex-shrink:0}
.btn{display:inline-flex;align-items:center;gap:10px;background:var(--primary);
  color:var(--on-primary);font-size:.9375rem;font-weight:500;
  padding:15px 30px;border-radius:var(--r-sm);transition:background .3s var(--ease-io)}
.btn:hover{background:#F2BE60}
.btn svg{width:13px;height:13px;fill:currentColor}

/* ── nav ──────────────────────────────────────────────────────────────── */
nav.top{position:fixed;top:0;left:0;right:0;z-index:90;background:rgba(6,8,13,.72);
  backdrop-filter:blur(16px);-webkit-backdrop-filter:blur(16px);
  border-bottom:1px solid transparent;transition:border-color .3s,background .3s}
nav.top.scrolled{background:rgba(6,8,13,.92);border-bottom-color:var(--rule)}
nav.top .wrap{display:flex;align-items:center;justify-content:space-between;height:68px;gap:20px}
.brand{font-family:var(--serif);font-size:1.15rem;letter-spacing:.01em;white-space:nowrap}
.brand small{font-family:var(--sans);font-size:.6875rem;font-weight:500;letter-spacing:.2em;
  text-transform:uppercase;color:var(--on-surface-muted);margin-left:14px}
.navlinks{display:flex;gap:26px}
.navlinks a{font-size:.8125rem;color:var(--on-surface-muted);transition:color .3s;padding:10px 0}
.navlinks a:hover,.navlinks a[aria-current]{color:var(--on-surface)}
.navlinks a[aria-current]{border-bottom:1px solid var(--primary)}
@media(max-width:640px){.brand small{display:none}.navlinks{gap:16px}.navlinks a{font-size:.75rem;white-space:nowrap}}
@media(max-width:480px){.navlinks a.back{display:none}.kick .pill:not(.syn){border:0;padding:0}}

/* ── header ───────────────────────────────────────────────────────────── */
header.xhead{padding:140px 0 56px}
header.xhead .display{margin:26px 0 22px;max-width:14ch}
.xlinks{display:flex;gap:32px;flex-wrap:wrap;margin-top:30px;align-items:center}
.kick{display:flex;flex-wrap:wrap;gap:12px 14px;align-items:center;color:var(--on-surface-muted)}
.kick .pill{border:1px solid var(--rule);border-radius:var(--r-full);padding:5px 13px}
.kick .pill.syn{color:var(--on-surface)}

/* ── filters ──────────────────────────────────────────────────────────── */
.filters{position:sticky;top:68px;z-index:40;background:rgba(6,8,13,.9);
  backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);
  border-top:1px solid var(--rule);border-bottom:1px solid var(--rule);padding:10px 0}
.filters .wrap{display:flex;align-items:center;gap:8px 30px;flex-wrap:wrap}
.fgroup{display:flex;align-items:center;gap:8px;flex-wrap:wrap}
.fgroup .label{color:var(--on-surface-muted);margin-right:6px}
.chip{display:inline-flex;align-items:center;min-height:40px;padding:0 14px;border-radius:var(--r-full);
  border:1px solid transparent;color:var(--on-surface-muted);font-size:.8125rem;font-weight:400;
  transition:color .3s var(--ease-io),background .3s var(--ease-io),border-color .3s var(--ease-io)}
.chip:hover{color:var(--on-surface)}
.chip[aria-pressed="true"]{background:var(--surface-raised);color:var(--on-surface);border-color:var(--rule-hover)}
.fsel{position:relative;display:inline-flex;align-items:center}
.fsel select{appearance:none;-webkit-appearance:none;min-height:40px;padding:0 34px 0 14px;
  border-radius:var(--r-full);border:1px solid var(--rule);background:var(--neutral);
  color:var(--on-surface);font:inherit;font-size:.8125rem;font-weight:400;max-width:260px;cursor:pointer}
.fsel svg{position:absolute;right:13px;width:11px;height:11px;fill:var(--on-surface-muted);pointer-events:none}
.freset{margin-left:auto;font-size:.8125rem;min-height:40px}
.fsummary{width:100%;color:var(--on-surface-muted);font-size:.8125rem;font-weight:400;
  font-variant-numeric:tabular-nums;margin-top:-6px}
@media(max-width:900px){.filters{position:static}}
@media(max-width:640px){.freset{margin-left:0}}

/* ── sections ─────────────────────────────────────────────────────────── */
main section{padding:0 0 var(--section);scroll-margin-top:180px}
main section.first{padding-top:56px}
.shead{display:grid;grid-template-columns:minmax(0,1.1fr) minmax(0,.9fr);align-items:end;gap:24px 48px;margin-bottom:28px}
@media(max-width:860px){.shead{grid-template-columns:1fr}}
.shead h2.head{margin:8px 0 0}
.shead p{color:var(--on-surface-muted);font-size:.9375rem;max-width:58ch}

/* ── KPI ledger ───────────────────────────────────────────────────────── */
.kpis{display:grid;grid-template-columns:repeat(5,1fr);border-top:1px solid var(--rule);border-bottom:1px solid var(--rule)}
.kpi{padding:28px 22px 26px 0;border-left:1px solid var(--rule);padding-left:22px;min-width:0}
.kpi:first-child{border-left:0;padding-left:0}
.kpi .label{color:var(--on-surface-muted);display:block;white-space:nowrap}
.kpi .fig{font-family:var(--serif);font-weight:400;font-size:clamp(2.3rem,3.6vw,3.1rem);line-height:1;
  letter-spacing:-.01em;color:var(--primary);margin:16px 0 10px;white-space:nowrap}
.kpi .fig small{font-size:.5em;letter-spacing:0;color:var(--primary);opacity:.85;margin-left:2px}
.kpi .delta{display:flex;align-items:center;gap:6px;font-size:.8125rem;font-weight:400;color:var(--on-surface-muted);
  font-variant-numeric:tabular-nums;min-height:20px}
.kpi .delta svg{width:9px;height:9px;flex-shrink:0}
.kpi .delta.good{color:var(--positive)}.kpi .delta.bad{color:var(--negative)}
.kpi .sub{font-size:.75rem;color:var(--on-surface-muted);margin-top:4px;font-variant-numeric:tabular-nums;min-height:34px;line-height:1.4}
.kpi .spark{display:block;width:100%;height:30px;margin-top:14px}
@media(max-width:1000px){.kpis{grid-template-columns:repeat(3,1fr)}
  .kpi:nth-child(4){border-left:0;padding-left:0}
  .kpi:nth-child(n+4){border-top:1px solid var(--rule)}}
@media(max-width:640px){.kpis{grid-template-columns:1fr 1fr}
  .kpi{padding:22px 0 22px 18px}
  .kpi:nth-child(odd){border-left:0;padding-left:0}.kpi:nth-child(even){border-left:1px solid var(--rule)}
  .kpi:nth-child(4){border-left:1px solid var(--rule);padding-left:18px}
  .kpi:nth-child(n+3){border-top:1px solid var(--rule)}
  .kpi:nth-child(5){grid-column:1/-1;border-left:0;padding-left:0}
  .kpi .fig{font-size:2.2rem}}

/* ── status ───────────────────────────────────────────────────────────── */
.st{display:inline-flex;align-items:center;gap:8px;white-space:nowrap;font-size:.6875rem;font-weight:500;
  letter-spacing:.2em;text-transform:uppercase;color:var(--on-surface-muted)}
.st i{width:7px;height:7px;border-radius:50%;flex-shrink:0;border:1.5px solid var(--on-surface-muted);background:transparent}
.st.good{color:var(--positive)}.st.good i{background:var(--positive);border-color:var(--positive)}
.st.bad{color:var(--negative)}.st.bad i{background:var(--negative);border-color:var(--negative)}

/* ── chart cards ──────────────────────────────────────────────────────── */
.grid2{display:grid;grid-template-columns:1fr 1fr;gap:24px}
@media(max-width:860px){.grid2{grid-template-columns:1fr}}
.chart{border:1px solid var(--rule);border-radius:var(--r-sm);background:var(--surface);padding:24px 24px 20px;
  transition:border-color .3s var(--ease-io);min-width:0}
.chart:hover{border-color:var(--rule-hover)}
.chead{display:flex;align-items:flex-start;justify-content:space-between;gap:16px;margin-bottom:18px}
.chead h3{font-family:var(--serif);font-weight:400;font-size:1.5rem;line-height:1.2;letter-spacing:-.01em}
.chead p{color:var(--on-surface-muted);font-size:.8125rem;font-weight:400;margin-top:6px;max-width:60ch}
.ctools{display:flex;gap:4px;flex-shrink:0}
.tbtn{font-size:.6875rem;font-weight:500;letter-spacing:.2em;text-transform:uppercase;color:var(--on-surface-muted);
  padding:8px 10px;border-radius:var(--r-sm);min-height:40px;transition:color .3s var(--ease-io),background .3s var(--ease-io)}
.tbtn:hover{color:var(--on-surface)}
.tbtn[aria-pressed="true"]{color:var(--on-surface);background:var(--surface-raised)}
.cnote{font-size:.75rem;color:var(--on-surface-muted);margin-top:12px;font-weight:400}
.cbody{position:relative;transition:opacity .25s var(--ease-io)}
body.is-updating .cbody,body.is-updating .kpis{opacity:.35}
.cbody svg.viz{display:block;width:100%;overflow:visible}
.cbody[tabindex]{outline-offset:6px;border-radius:var(--r-sm)}
.chart.table-on .cbody svg.viz,.chart.table-on .legend{display:none}
.chart .ctable{display:none}
.chart.table-on .ctable{display:block}
.legend{display:flex;flex-wrap:wrap;gap:8px 20px;margin:14px 0 0;color:var(--on-surface-muted);font-size:.75rem;font-weight:400}
.legend span{display:inline-flex;align-items:center;gap:8px}
.legend i{display:inline-block;width:12px;height:12px;border-radius:2px;flex-shrink:0}
.legend i.line{width:16px;height:2px;border-radius:1px}
.legend i.dot{width:9px;height:9px;border-radius:50%}
.legend i.ann{width:2px;height:12px;background:var(--primary)}

/* SVG text & marks */
svg .ax{font-family:var(--sans);font-size:11px;font-weight:400;fill:var(--on-surface-muted);font-variant-numeric:tabular-nums}
svg .lbl{font-family:var(--sans);font-size:12px;font-weight:400;fill:var(--on-surface);font-variant-numeric:tabular-nums}
svg .ttl{font-family:var(--sans);font-size:11px;font-weight:500;letter-spacing:.2em;fill:var(--on-surface-muted)}
svg .ann{font-family:var(--sans);font-size:10.5px;font-weight:500;letter-spacing:.2em;fill:var(--primary)}
svg .big{font-family:var(--serif);font-size:22px;fill:var(--on-surface);letter-spacing:-.01em}
svg .grid{stroke:var(--rule);stroke-width:1}
svg .base{stroke:var(--rule-hover);stroke-width:1}
svg .target{stroke:var(--steel-200);stroke-width:1}
svg .ink{fill:none;stroke:var(--on-surface);stroke-width:2;stroke-linejoin:round;stroke-linecap:round}
svg .ghost{fill:none;stroke:var(--on-surface-muted);stroke-width:1.5;stroke-linejoin:round;stroke-linecap:round;opacity:.6}
svg .wash{fill:var(--on-surface);opacity:.07}
svg .dot{fill:var(--on-surface);stroke:var(--surface);stroke-width:2}
svg .dot.hot{fill:var(--primary)}
svg .cross{stroke:var(--on-surface-muted);stroke-width:1;opacity:0}
svg .cross.on{opacity:.9}
svg .int{stroke:var(--primary);stroke-width:1.5}
svg .seg{stroke:var(--surface);stroke-width:2;transition:opacity .2s var(--ease-io)}
svg .col.dim .seg{opacity:.55}
svg .hit{fill:transparent;cursor:crosshair}
svg .empty{font-family:var(--sans);font-size:12px;fill:var(--on-surface-muted)}
svg .db-line{stroke:var(--steel-200);stroke-width:2;stroke-linecap:round}
svg .db-before{fill:var(--steel-300);stroke:var(--surface);stroke-width:2}
svg .db-after{fill:var(--on-surface);stroke:var(--surface);stroke-width:2}

/* small multiples */
.sm{display:grid;grid-template-columns:1fr 1fr;gap:6px 28px}
.sm.single{grid-template-columns:1fr}
@media(max-width:700px){.sm{grid-template-columns:1fr}}
.sm .panel{min-width:0}

/* tooltip */
#tip{position:fixed;z-index:120;pointer-events:none;opacity:0;transform:translateY(4px);
  transition:opacity .18s var(--ease-io),transform .18s var(--ease-io);
  background:var(--surface-raised);border:1px solid var(--rule-hover);border-radius:var(--r-sm);
  padding:10px 12px;min-width:150px;max-width:280px;font-size:.75rem;font-weight:400;line-height:1.5}
#tip.on{opacity:1;transform:none}
#tip .th{color:var(--on-surface-muted);font-size:.6875rem;letter-spacing:.2em;text-transform:uppercase;font-weight:500;margin-bottom:6px}
#tip .tr{display:flex;justify-content:space-between;gap:16px;align-items:center;font-variant-numeric:tabular-nums}
#tip .tr b{font-weight:500;color:var(--on-surface);order:2}
#tip .tr span{color:var(--on-surface-muted);display:inline-flex;align-items:center;gap:7px}
#tip .tr i{display:inline-block;width:12px;height:2px;background:var(--on-surface);flex-shrink:0}
#tip .tr i.sq{width:9px;height:9px;border-radius:2px}
#tip .tr.hi b{color:var(--primary)}

/* ── tables ───────────────────────────────────────────────────────────── */
.tscroll{overflow-x:auto;-webkit-overflow-scrolling:touch;margin:0 -24px;padding:0 24px}
table.dt{width:100%;border-collapse:collapse;font-size:.8125rem;font-weight:400;font-variant-numeric:tabular-nums}
table.dt th{font-family:var(--sans);font-size:.6875rem;font-weight:500;letter-spacing:.2em;text-transform:uppercase;
  color:var(--on-surface-muted);text-align:left;padding:0 10px 12px 0;border-bottom:1px solid var(--rule);white-space:nowrap;vertical-align:bottom}
table.dt th.r,table.dt td.r{text-align:right}
table.dt th button{font:inherit;color:inherit;letter-spacing:inherit;text-transform:inherit;display:inline-flex;align-items:center;gap:6px;min-height:40px;padding:0}
table.dt th button svg{width:9px;height:9px;fill:currentColor;opacity:0;transition:opacity .2s}
table.dt th[aria-sort] button{color:var(--on-surface)}
table.dt th[aria-sort] button svg{opacity:1}
table.dt th[aria-sort="ascending"] button svg{transform:rotate(180deg)}
table.dt th button:hover{color:var(--on-surface)}
table.dt td{padding:11px 10px 11px 0;border-bottom:1px solid var(--rule);vertical-align:middle;white-space:nowrap}
table.dt tr:last-child td{border-bottom:0}
table.dt tbody tr{transition:background .2s var(--ease-io)}
table.dt tbody tr.pick{cursor:pointer}
table.dt tbody tr.pick:hover{background:var(--surface-raised)}
table.dt tbody tr.sel td:first-child{box-shadow:inset 2px 0 0 var(--primary);padding-left:12px}
table.dt td .vn{color:var(--on-surface);font-weight:400}
.vpick{display:block;text-align:left;padding:0;font:inherit;line-height:inherit;border-radius:var(--r-sm)}
.vpick .vt{white-space:normal}
table.dt td .vt{color:var(--on-surface-muted);font-size:.75rem;display:block}
table.dt td.dim{color:var(--on-surface-muted)}
table.dt td svg.spark{width:64px;height:22px;display:block}
@media(max-width:1100px){table.dt .hide-md{display:none}}
table.dt.compact{min-width:0}
table.dt.compact th,table.dt.compact td{padding-right:10px}
.ctable table.dt{min-width:0;margin-top:4px}
@media(max-width:600px){table.dt .hide-sm{display:none}table.dt{min-width:0}
  table.dt td:first-child{white-space:normal;min-width:120px;max-width:150px;line-height:1.35}
  table.dt td:first-child .vt{margin-top:3px}}

/* meter (work streams) */
.meter{display:block;width:96px;height:6px;background:var(--steel-100);overflow:hidden}
.meter i{display:block;height:100%;background:var(--on-surface)}
.var{font-variant-numeric:tabular-nums}
.var.over{color:var(--negative)}.var.under{color:var(--positive)}

/* ── footer / about ───────────────────────────────────────────────────── */
footer.about{border-top:1px solid var(--rule);padding:64px 0 80px}
footer.about .cols{display:grid;grid-template-columns:1.2fr .8fr;gap:48px}
footer.about h2.head{margin-top:12px}
.note-fig{font-size:.9375rem;margin-top:28px}
@media(max-width:800px){footer.about .cols{grid-template-columns:1fr}}
footer.about p{color:var(--on-surface-muted);font-size:.9375rem}
footer.about p+p{margin-top:16px}
footer.about ul{list-style:none;display:flex;flex-direction:column;gap:14px;margin-top:6px}
.fine{font-size:.8125rem;color:var(--on-surface-muted);margin-top:36px}

/* ── case study (editorial) ───────────────────────────────────────────── */
.cs header.xhead{padding-bottom:0}
.cs .display{max-width:20ch}
.facts{display:grid;grid-template-columns:repeat(4,1fr);gap:0;border-top:1px solid var(--rule);border-bottom:1px solid var(--rule);margin:56px 0 0}
.facts>div{padding:22px 22px 22px 0;border-left:1px solid var(--rule);padding-left:22px}
.facts>div:first-child{border-left:0;padding-left:0}
.facts .label{color:var(--on-surface-muted);display:block;margin-bottom:10px}
.facts .v{font-size:.9375rem;color:var(--on-surface);line-height:1.5}
@media(max-width:760px){.facts{grid-template-columns:1fr 1fr}
  .facts>div:nth-child(3){border-left:0;padding-left:0}
  .facts>div:nth-child(n+3){border-top:1px solid var(--rule)}}
.prose{display:grid;grid-template-columns:150px 1fr;gap:40px;padding:56px 0;border-top:1px solid var(--rule)}
.prose:first-of-type{border-top:0}
@media(max-width:760px){.prose{grid-template-columns:1fr;gap:16px;padding:44px 0}}
.prose .rail .label{color:var(--primary);display:block}
.prose .rail .n{font-family:var(--serif);font-size:1.5rem;color:var(--on-surface-muted);margin-top:8px;letter-spacing:-.01em}
.prose h2{font-family:var(--serif);font-weight:400;font-size:clamp(1.8rem,3.4vw,2.5rem);line-height:1.1;letter-spacing:-.01em;margin-bottom:22px;max-width:22ch}
.prose p{margin-bottom:20px;max-width:62ch}
.prose p:last-child{margin-bottom:0}
.prose ul{max-width:62ch;margin:0 0 20px 0;padding-left:0;list-style:none}
.prose li{padding:14px 0;border-top:1px solid var(--rule);display:grid;grid-template-columns:150px 1fr;gap:20px}
.prose li:last-child{border-bottom:1px solid var(--rule)}
.prose li b{font-weight:400;color:var(--on-surface)}
.prose li span{color:var(--on-surface-muted);font-size:.9375rem}
@media(max-width:560px){.prose li{grid-template-columns:1fr;gap:6px}}
.pull{display:grid;grid-template-columns:repeat(3,1fr);gap:32px;margin:40px 0 8px;max-width:none}
@media(max-width:640px){.pull{grid-template-columns:1fr;gap:26px}}
.pull .fig{font-family:var(--serif);font-weight:400;font-size:clamp(2.4rem,4.2vw,3.3rem);line-height:1;letter-spacing:-.01em;color:var(--primary)}
.pull .cap{color:var(--on-surface-muted);font-size:.875rem;line-height:1.55;margin-top:12px;max-width:24ch}
.callout{border:1px solid var(--rule);border-radius:var(--r-sm);background:var(--surface);padding:28px 28px 26px;margin:8px 0 0;max-width:62ch}
.callout .label{color:var(--on-surface-muted);display:block;margin-bottom:10px}
.callout p{color:var(--on-surface-muted);font-size:.9375rem;margin-bottom:18px}
.aside-note{font-family:var(--serif);font-style:italic;font-size:1.25rem;line-height:1.6;color:var(--on-surface-muted);max-width:56ch;margin-top:8px}
.exhibit-link{display:grid;grid-template-columns:1fr auto;gap:24px;align-items:center;border:1px solid var(--rule);
  border-radius:var(--r-sm);background:var(--surface);padding:26px 28px;margin-top:8px;transition:border-color .3s var(--ease-io)}
.exhibit-link:hover{border-color:var(--rule-hover)}
.exhibit-link .t{display:block;font-family:var(--serif);font-size:1.35rem;line-height:1.2}
.exhibit-link .s{display:block;color:var(--on-surface-muted);font-size:.875rem;margin-top:6px}
.exhibit-link svg{width:18px;height:18px;fill:var(--on-surface-muted)}
@media(max-width:520px){.exhibit-link{grid-template-columns:1fr}}
.cs footer.about{margin-top:var(--section)}

/* ── reveal (CSS-only; DESIGN.md Data visualization § Motion) ─────────── */
.rv{opacity:0;transform:translateY(28px);transition:opacity .9s var(--ease-out),transform .9s var(--ease-out)}
.rv.in{opacity:1;transform:none}
@media(prefers-reduced-motion:reduce){
  .rv{opacity:1;transform:none;transition:none}
  #tip,.cbody,.chip,.tbtn,.qlink,.chart{transition:none}
}