/* Shrinkflation Sleuth: supermarket shelf tags and thermal receipts.
   Palette: bench (shelf-metal grey-blue), white shelf tags, shelf-edge blue,
   cool thermal-paper white, alert red for the price-per-unit rise.
   Type: Archivo for text and headings, IBM Plex Mono only for prices,
   receipt lines and data. */

:root{
  --bench:#DDE4E7;
  --card:#FFFFFF;
  --paper:#F3F6F7;
  --ink:#101C26;
  --shelf:#1F4E79;
  --alert:#B42318;
  --good:#2B6B47;
  --dim:#3E4C56;
  --hair:#C5D0D6;
  --wrap:1000px;
}

*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{
  background:var(--bench);
  color:var(--ink);
  font-family:'Archivo',system-ui,-apple-system,'Segoe UI',sans-serif;
  font-size:1rem;
  line-height:1.55;
  -webkit-font-smoothing:antialiased;
  font-variant-numeric:tabular-nums;
}
img,svg{max-width:100%}
a{color:inherit}
:focus-visible{outline:3px solid var(--ink);outline-offset:3px}
.site :focus-visible,.btn.primary:focus-visible,.tabs button[aria-selected=true]:focus-visible{outline-color:#fff}

.wrap{max-width:var(--wrap);margin:0 auto;padding:0 24px}
.sr{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap}

/* Header: a plain shelf-edge bar */
.site{background:var(--shelf);color:#fff}
.site .wrap{display:flex;justify-content:space-between;align-items:center;gap:16px;padding-top:16px;padding-bottom:16px}
.logo{font-weight:800;font-size:1.05rem;letter-spacing:-.01em}
.site nav{display:flex;gap:22px;align-items:center}
.site nav a{color:#fff;text-decoration:none;font-size:.95rem;padding:4px 0;border-bottom:2px solid transparent}
.site nav a:hover,.site nav a:focus-visible{border-bottom-color:#fff}

/* Hero: headline, then the shelf */
.hero{padding-top:56px;padding-bottom:48px}
.hero-top{display:grid;grid-template-columns:minmax(0,.9fr) minmax(0,1.1fr);gap:40px;align-items:center}
h1{font-weight:800;font-size:clamp(2.5rem,5vw,3.6rem);line-height:1.02;letter-spacing:-.025em;max-width:14ch}
.lede{margin-top:20px;font-size:1.15rem;color:var(--dim);max-width:34em}
.cta-row{margin-top:28px;display:flex;gap:12px;flex-wrap:wrap}
.btn{display:inline-block;text-decoration:none;font:700 .98rem 'Archivo',system-ui,sans-serif;
     padding:13px 22px;border:2px solid var(--ink);color:var(--ink);background:transparent;cursor:pointer}
.btn.primary{background:var(--ink);color:#fff}
.btn:hover,.btn:focus-visible{background:var(--ink);color:#fff;outline-color:var(--ink)}
.btn.primary:hover,.btn.primary:focus-visible{background:var(--shelf);border-color:var(--shelf)}

/* The shelf: two tags on a shelf edge */
.shelf{margin:0}
.tags{display:grid;grid-template-columns:1fr auto 1fr;align-items:stretch;gap:14px}
.tag{
  position:relative;background:var(--card);color:var(--ink);border-radius:8px 8px 4px 4px;
  padding:0 0 18px;overflow:hidden;
}
.tag::before{ /* the hanging hole in the top of a shelf tag */
  content:"";position:absolute;top:10px;left:50%;width:10px;height:10px;margin-left:-5px;
  border-radius:50%;background:var(--bench);z-index:1;
}
.tag-head{display:block;background:var(--shelf);color:#fff;font-weight:700;font-size:1rem;padding:32px 18px 11px;line-height:1.25}
.tag.after .tag-head{background:var(--alert)}
.tag-body{padding:16px 18px 0}
.tag-state{font-size:.9rem;color:var(--dim);font-weight:600}
.tag-size{margin-top:4px;font-size:1.05rem}
.tag-ppu{margin-top:12px;display:flex;align-items:baseline;flex-wrap:wrap;gap:4px 8px}
.tag-ppu .big{font:700 3.3rem/1 'IBM Plex Mono',ui-monospace,monospace;letter-spacing:-.02em}
.tag-ppu .unit{font-size:1rem;color:var(--dim)}
.tag.after .big{color:var(--alert)}
.tag-note{margin-top:10px;font-size:1.05rem;color:var(--alert);font-weight:700}
.same{align-self:center;text-align:center;font-weight:800;font-size:1rem;line-height:1.25;max-width:96px}
.same b{display:block;font:700 1.1rem 'IBM Plex Mono',ui-monospace,monospace;margin-bottom:2px}
.rail{height:14px;background:var(--shelf);border-radius:2px;margin-top:-1px}
.shelf figcaption{margin-top:14px;font-size:.95rem;color:var(--dim);max-width:52ch}

/* Receipt and how to read it */
.lower{margin-top:56px;display:grid;grid-template-columns:minmax(0,auto) minmax(0,1fr);gap:48px;align-items:start}
.slip{
  background:var(--paper);color:var(--ink);font:14px/1.6 'IBM Plex Mono',ui-monospace,monospace;
  padding:20px 22px 24px;width:min(100%,360px);
}
.slip h2{font-size:.95rem;text-align:center;font-weight:700;margin-bottom:2px}
.slip .sub{text-align:center;color:var(--dim);font-size:.82rem;margin-bottom:12px}
.rline{display:flex;justify-content:space-between;gap:12px;padding:4px 0}
.rline .old{text-decoration:line-through;color:var(--dim)}
.rline.total{margin-top:10px;font-weight:700;border-top:2px solid var(--ink);padding-top:8px}
.rline.total .alert{color:var(--alert)}
.status{margin-top:12px;text-align:center;font-weight:700;color:var(--alert)}
.how p + p,.how-to p + p{margin-top:14px}
.how-to p{max-width:58ch}
.how h3{font-size:1.25rem;font-weight:800;margin-bottom:10px}
.how p{max-width:58ch;color:var(--ink)}
.how .fine{color:var(--dim);font-size:.9rem}

/* Sections */
section{padding:72px 0}
.read{padding:8px 0 56px}
#explorer{padding-top:48px;padding-bottom:32px}
section.field{background:var(--card)}
h2{font-size:clamp(1.7rem,3vw,2.2rem);font-weight:800;line-height:1.1;letter-spacing:-.02em;margin-bottom:14px}
h3{font-size:1.35rem;font-weight:800;margin-bottom:10px}
p.note-lead{color:var(--dim);max-width:62ch}

/* Figures: three big numbers, no boxes */
.figures{list-style:none;display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:36px;margin-top:8px}
.figures b{display:block;font:700 clamp(3.4rem,6.4vw,5rem)/.95 'IBM Plex Mono',ui-monospace,monospace;letter-spacing:-.04em}
.figures li:nth-child(n+2) b{color:var(--alert)}
.figures span{display:block;margin-top:14px;font-size:1.05rem;color:var(--ink);max-width:30ch}

/* Explorer */
#stat-line{font-size:.95rem;color:var(--dim);margin:0 0 18px}
#explorer-status{color:var(--alert)}
.note{margin-top:16px;font-size:.95rem;color:var(--dim);max-width:70ch}
.note a,footer a{color:inherit;text-underline-offset:3px}
.tabs{display:flex;gap:6px;margin:20px 0 12px;overflow-x:auto;scrollbar-width:thin;padding-bottom:4px}
.tabs button{flex:0 0 auto;white-space:nowrap;font:600 1rem 'Archivo',system-ui,sans-serif;padding:12px 20px;min-height:48px;background:transparent;
  border:2px solid var(--ink);cursor:pointer;color:var(--ink)}
.tabs button[aria-selected=true]{background:var(--ink);color:#fff}
.tabs button:focus-visible{outline:3px solid var(--ink);outline-offset:2px}
.panel{background:var(--card);padding:24px;min-height:320px}
.panel form{display:flex;gap:10px;flex-wrap:wrap;margin-bottom:12px}
.panel input,.panel select,.panel textarea{font:500 .98rem 'IBM Plex Mono',ui-monospace,monospace;padding:10px 12px;
  border:2px solid var(--ink);background:#fff;color:var(--ink);flex:1 1 240px;min-width:0}
.panel textarea{min-height:72px;resize:vertical}
.panel input:focus,.panel select:focus,.panel textarea:focus{outline:3px solid var(--shelf);outline-offset:1px}
.panel .btn{padding:10px 18px}
.chips{display:flex;gap:8px;flex-wrap:wrap;margin-bottom:18px}
.chip{font:.95rem 'Archivo',system-ui,sans-serif;padding:9px 14px;border:none;background:var(--paper);cursor:pointer;color:var(--ink)}
.chip:hover{background:var(--hair)}
.chip:focus-visible{outline:3px solid var(--ink);outline-offset:2px}

.report header{display:flex;flex-wrap:wrap;align-items:baseline;gap:4px 14px;margin-bottom:12px}
.report h4{font-size:1.3rem;font-weight:800}
.meta,.dim,.fine{color:var(--dim);font-size:.95rem}
.verdict{display:inline-block;font-weight:700;font-size:.95rem;padding:5px 12px;color:#fff;margin-bottom:14px;background:var(--alert)}
.verdict.good{background:var(--good)}
.facts{display:grid;grid-template-columns:max-content 1fr;gap:8px 18px;font-size:.98rem}
.facts dt{font-weight:600}
.facts dd.big{font:700 1.6rem/1.2 'IBM Plex Mono',ui-monospace,monospace;color:var(--alert)}
.tip{margin-top:14px;font-size:.95rem;background:var(--paper);padding:10px 14px;max-width:70ch}
.badge{font:.85rem 'IBM Plex Mono',ui-monospace,monospace;padding:2px 8px;white-space:nowrap;background:var(--paper)}
.badge.ok{color:var(--good);background:#E2F0E7}
.badge.warn{color:#6E4300;background:#F8ECCB}
.sev-low{color:var(--good);font-weight:600} .sev-medium{color:#6E4300;font-weight:600} .sev-high{color:var(--alert);font-weight:700}
.chart{width:100%;height:auto;margin-top:16px}
.chart .line{fill:none;stroke:var(--ink);stroke-width:2.2}
.chart .pt{fill:var(--card);stroke:var(--ink);stroke-width:2}
.chart .cut{fill:var(--alert);stroke:#fff;stroke-width:2}
.chart .base{stroke:var(--hair)}
.chart text{font:13px 'IBM Plex Mono',ui-monospace,monospace;fill:var(--dim);text-anchor:middle}
.chart text.yl{text-anchor:end}
.chart .cutlbl{fill:var(--alert);font-weight:700}
.next,.also{margin-top:10px;font-size:.95rem}
button.link{background:none;border:none;padding:0;font:inherit;color:var(--shelf);text-decoration:underline;text-underline-offset:3px;cursor:pointer;text-align:left}
button.link:focus-visible{outline:3px solid var(--ink);outline-offset:2px}
.empty{color:var(--dim);padding:20px 0}
.scroll{overflow-x:auto;margin:6px 0}
table{border-collapse:collapse;width:100%;font-size:.95rem}
th,td{text-align:left;padding:9px 10px;vertical-align:top}
th{font-weight:700;font-size:.9rem;color:var(--dim);border-bottom:2px solid var(--ink)}
td.num,th.num{text-align:right;font-family:'IBM Plex Mono',ui-monospace,monospace;white-space:nowrap}
tbody tr:nth-child(even){background:var(--paper)}
tfoot td{border-top:2px solid var(--ink);font-weight:700;padding-top:12px}
tr.sel{background:#DCE8F3}
.bar{display:inline-block;height:10px;width:calc(var(--w) * .6);background:var(--alert);vertical-align:middle;margin-right:8px}
.kpis{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:4px;margin-bottom:18px}
.kpis div{padding:14px 16px;background:var(--paper)}
.kpis b{display:block;font:700 1.5rem 'IBM Plex Mono',ui-monospace,monospace}
.kpis span{font-size:.88rem;color:var(--dim)}
h5{font-size:1rem;font-weight:800;margin:22px 0 10px}
.offenders{padding-left:20px;font-size:.98rem} .offenders li{margin:6px 0}
.years{display:flex;gap:10px;align-items:flex-end;height:180px;border-bottom:2px solid var(--ink);padding-top:8px}
.yr{flex:1;display:flex;flex-direction:column;align-items:center;justify-content:flex-end;height:100%;font-size:.85rem}
.yr .col{width:70%;max-width:56px;height:calc(var(--h) * .7);background:var(--shelf);position:relative;min-height:4px}
.yr .col em{position:absolute;top:-20px;left:0;right:0;text-align:center;font:700 .9rem 'IBM Plex Mono',ui-monospace,monospace;font-style:normal}
.yr b{font-family:'IBM Plex Mono',ui-monospace,monospace;margin-top:6px} .yr small{color:var(--dim);font-size:.85rem}
details.agent{margin-top:18px;background:var(--paper);padding:10px 14px;font-size:.92rem}
details.agent summary{cursor:pointer;color:var(--ink);font-weight:600}
details.agent summary:focus-visible{outline:3px solid var(--ink);outline-offset:2px}
details.agent pre{margin-top:10px;overflow-x:auto;font:.85rem/1.5 'IBM Plex Mono',ui-monospace,monospace;white-space:pre}

/* Ask list: plain rows */
.asks{list-style:none;display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:28px 48px;margin-top:24px}
.asks .ask{font-weight:800;font-size:1.15rem;line-height:1.3}
.asks p.a{margin-top:6px;color:var(--dim);font-size:.98rem}

/* How it works: the pipeline as a code block */
.flow{font:14px/1.6 'IBM Plex Mono',ui-monospace,monospace;background:var(--ink);color:#EEF3F5;
      padding:22px 24px;overflow-x:auto;margin-top:24px;white-space:pre;max-width:100%}

footer{padding:28px 0 36px;font-size:.9rem;color:var(--dim)}
footer .wrap{display:flex;justify-content:space-between;flex-wrap:wrap;gap:10px 24px}

/* One orchestrated moment: the after tag settles onto the shelf */
@media (prefers-reduced-motion: no-preference){
  .tag.after{animation:settle .7s cubic-bezier(.2,.8,.2,1) .3s both}
}
@keyframes settle{from{transform:translateY(-16px);opacity:0}to{transform:none;opacity:1}}
@media (prefers-reduced-motion: reduce){
  html{scroll-behavior:auto}
  *,*::before,*::after{animation:none!important;transition:none!important}
}

@media (max-width:900px){
  .hero-top{grid-template-columns:1fr;gap:36px}
  .lower{grid-template-columns:1fr;gap:36px}
  .figures{grid-template-columns:1fr;gap:28px}
  .flow{font-size:12px}
  .asks{grid-template-columns:1fr}
  .kpis{grid-template-columns:1fr 1fr}
}

@media (max-width:760px){
  .wrap{padding:0 16px}
  section{padding:64px 0}
  .hero{padding-top:40px}
  .site nav a.hide-sm{display:none}
  .site nav{gap:16px}
  .tags{grid-template-columns:1fr}
  .flow{font-size:12px;padding:18px 16px}
  .same{justify-self:center;max-width:none;font-size:1rem}
  .same b{display:inline;margin-right:6px}
  .tag-ppu .big{font-size:2.1rem}
  .panel{padding:16px}
  .panel input,.panel select,.panel textarea{flex-basis:100%}
  .facts{grid-template-columns:1fr}
  .facts dt{margin-top:6px}
  .kpis{grid-template-columns:1fr 1fr}
  .slip{width:100%}
  .figures b{font-size:2.6rem}
}

/* Controls and result: a shelf-label frame */
#panel-lookup{background:transparent;padding:0;min-height:0}
#panel-lookup .controls{background:var(--card);padding:18px 20px 4px}
#panel-lookup #out-lookup{margin-top:20px}
.report{background:var(--card);border-radius:8px 8px 4px 4px;overflow:hidden;box-shadow:0 3px 0 rgba(16,28,38,.18)}
.rbar{background:var(--ink);color:#fff;display:flex;justify-content:space-between;align-items:baseline;flex-wrap:wrap;gap:4px 18px;padding:14px 22px;border-bottom:6px solid var(--shelf)}
.rbar .t{font:700 .85rem 'IBM Plex Mono',ui-monospace,monospace;letter-spacing:.18em}
.rbar .n{font-weight:700;font-size:1.15rem}
.rbar .n small{font-weight:400;font-size:.95rem;color:#C5D0D6;margin-left:8px}
.rbody{padding:10px 22px 24px}
.rl{display:flex;justify-content:space-between;align-items:baseline;gap:6px 18px;padding:10px 0;border-bottom:1px solid var(--hair)}
.rl>span:first-child{color:var(--dim);font-weight:600;flex:none}
.rl>span:last-child{text-align:right;font-family:'IBM Plex Mono',ui-monospace,monospace;font-size:.98rem}
.rl s{color:var(--dim)}
.rtotal{margin-top:18px;padding:18px 20px;background:var(--paper);display:flex;justify-content:space-between;align-items:center;gap:12px 24px;flex-wrap:wrap;border-left:8px solid var(--alert)}
.rtotal .lab{font-weight:800;font-size:1.1rem}
.rtotal .lab small{display:block;font-weight:400;color:var(--dim);font-size:.95rem}
.rtotal .num{font:700 clamp(3.6rem,11vw,5.8rem)/1 'IBM Plex Mono',ui-monospace,monospace;letter-spacing:-.04em;color:var(--alert)}
.rtotal.ok{border-left-color:var(--good)}
.rtotal.ok .num{color:var(--good);font-size:clamp(1.8rem,6vw,2.6rem);letter-spacing:-.02em}
.verdict{display:inline-block;margin:10px 0 0;font-size:.95rem}
.tip{margin-top:18px}
.chartwrap{margin-top:22px;border-top:1px solid var(--hair);padding-top:14px}
.chartwrap h5{margin:0 0 4px}
.chart{display:block;width:100%;height:auto;margin-top:0}
.chart .grid{stroke:var(--hair)}
.chart .gap{fill:var(--alert);fill-opacity:.15}
.chart .ref{stroke:var(--alert);stroke-width:2;stroke-dasharray:5 4}
.chart text{font:500 13px 'IBM Plex Mono',ui-monospace,monospace}
.chart text.l{fill:var(--ink);font-weight:700}
.chart text.gaplbl{fill:var(--alert);font-weight:700;font-size:14px;paint-order:stroke;stroke:#fff;stroke-width:4px;stroke-linejoin:round}
.chart text.s{text-anchor:start}.chart text.e{text-anchor:end}
.pair{margin-top:14px;display:grid;gap:12px;font-family:'IBM Plex Mono',ui-monospace,monospace}
.pair .lbl{font-size:.9rem;font-weight:600;margin-bottom:4px}
.pair .track{height:26px;display:flex;background:var(--hair)}
.pair .b1{background:var(--shelf);width:var(--w1)}
.pair .b2{background:var(--alert);width:var(--w2)}

/* Investigation cards */
.cards{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:16px;margin-top:28px}
.card{display:flex;flex-direction:column;gap:6px;text-decoration:none;color:var(--ink);background:var(--card);border-radius:8px 8px 4px 4px;
  padding:22px;border-top:8px solid var(--shelf);transition:transform .15s,box-shadow .15s}
.card.wide{grid-column:span 2}
.card:hover,.card:focus-visible{transform:translateY(-3px);box-shadow:0 6px 0 rgba(16,28,38,.2)}
.card .no{font:700 .9rem 'IBM Plex Mono',ui-monospace,monospace;color:var(--shelf)}
.card h3{font-size:1.35rem;margin:0;line-height:1.15}
.card .ask{font:500 .98rem 'IBM Plex Mono',ui-monospace,monospace}
.card p{color:var(--dim);margin:0;font-size:1rem}
.card .go{margin-top:auto;padding-top:10px;font:700 .95rem 'IBM Plex Mono',ui-monospace,monospace;color:var(--shelf)}
.card.feat{background:var(--shelf);color:#fff;border-top-color:var(--ink)}
.card.feat .no,.card.feat .go{color:#fff}.card.feat p,.card.feat .ask{color:#E4ECF2}
.card.alert{border-top-color:var(--alert)} .card.alert .no,.card.alert .go{color:var(--alert)}
.card.ghost{background:transparent;border:2px dashed var(--shelf);border-top-width:2px}

@media (prefers-reduced-motion:no-preference){
  .printing .rl,.printing .rtotal .lab,.printing .rtotal .verdict{opacity:0;animation:feed .34s ease-out both;animation-delay:calc(var(--i,0) * .26s)}
  .printing .rtotal .num{opacity:0;animation:slam .5s cubic-bezier(.2,1.5,.4,1) both;animation-delay:calc(var(--i,0) * .26s)}
  .printing .after{opacity:0;animation:fade .5s ease-out both;animation-delay:calc(var(--i,0) * .26s)}
}
@keyframes feed{from{opacity:1;clip-path:inset(0 0 100% 0);transform:translateY(-6px)}to{opacity:1;clip-path:inset(0);transform:none}}
@keyframes slam{from{opacity:0;transform:scale(1.5)}to{opacity:1;transform:none}}
@keyframes fade{from{opacity:0}to{opacity:1}}

@media (max-width:900px){
  .cards{grid-template-columns:1fr 1fr}
  .card.wide{grid-column:auto}.card.feat{grid-column:span 2}
}
@media (max-width:760px){
  .hero{padding-top:44px}
  .tags{grid-template-columns:1fr}
  #panel-lookup .controls{padding:14px 14px 4px}
  .panel form .btn{flex:1 1 100%;text-align:center}
  .panel input{font-size:.95rem}
  .chips{flex-wrap:nowrap;overflow-x:auto;padding-bottom:10px}
  .chip{white-space:nowrap}
  .rbar,.rbody{padding-left:16px;padding-right:16px}
  .rl{flex-wrap:wrap}
  .tag-ppu .big{font-size:2.8rem}
  .cards{grid-template-columns:1fr}.card.feat{grid-column:auto}
  section{padding:52px 0}
  .read{padding-bottom:32px}
}