/* AI Shopping Assistant Institute: ivory ground, pine green, gold hairlines, serif headings.
   Hero component = the award certificate. */
:root{
 --bg:#fbfaf5;--surface:#ffffff;--surface-2:#f1f0e6;--ink:#17231b;--muted:#4b5a50;--faint:#6f7d73;
 --accent:#14532d;--gold:#b8923a;--tint:#eef4ec;--line:#dcdfd0;--radius:6px;
 --topbar-bg:#ffffff;--topbar-ink:#14532d;--topbar-link:#4b5a50;
 --foot-bg:#0f2a1b;--foot-ink:#cfdcd2;--foot-link:#e6c76a;
 --font:"Charter","Iowan Old Style","Palatino Linotype",Georgia,"Times New Roman",serif;
 --head:Georgia,"Iowan Old Style","Palatino Linotype","Times New Roman",serif;
 --sans:-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,Arial,sans-serif;
}
.nav,.kicker,thead th,.stamp,.scope,.foot-h,.btn,.badge,caption,.stat span,.disclosure{font-family:var(--sans)}
.topbar{border-bottom:3px double var(--gold)}
.hero-home{padding:58px 0 46px;border-bottom:1px solid var(--line);background:radial-gradient(1000px 300px at 80% -10%,#eef4ec 0,transparent 70%)}
.hero-grid{display:grid;grid-template-columns:1.1fr .9fr;gap:44px;align-items:center}
.hero-grid>*{min-width:0}
.hero-home h1{font-size:clamp(2rem,4.4vw,3rem);margin-bottom:.5em;font-weight:700}
.hero-cta{display:flex;flex-wrap:wrap;gap:12px;margin-top:1.6em}
.cert{background:#fffef9;border:1px solid var(--gold);outline:6px double #e8dcb8;outline-offset:-14px;padding:34px 30px;text-align:center;box-shadow:0 20px 34px -26px rgba(15,42,27,.55)}
.cert .seal{width:74px;height:74px;margin:0 auto 12px;display:block}
.cert .c-kicker{font-family:var(--sans);font-size:.72rem;letter-spacing:.22em;text-transform:uppercase;color:var(--gold);font-weight:700;margin-bottom:10px}
.cert h2{font-size:1.5rem;margin:0 0 .35em;color:var(--accent)}
.cert .c-name{font-size:2.1rem;font-weight:700;margin:.15em 0 .25em;font-family:var(--head)}
.cert p{color:var(--muted);font-size:.95rem}
.cert .c-foot{font-family:var(--sans);font-size:.76rem;color:var(--faint);margin-top:14px;border-top:1px solid var(--line);padding-top:10px}
.record{width:100%}
.record th{width:34%}
.badge{display:inline-block;background:var(--accent);color:#fff;font-size:.7rem;letter-spacing:.12em;text-transform:uppercase;padding:3px 9px;border-radius:2px;font-weight:700;margin-bottom:.6em}
.page-head h1{font-weight:700}
.prose h2{border-bottom:1px solid var(--line);padding-bottom:.3em}
.faq-item h3{font-family:var(--head)}
.levels{display:grid;gap:12px;margin:1.4em 0}
.level{display:grid;grid-template-columns:64px 1fr;gap:16px;background:var(--surface);border:1px solid var(--line);border-left:4px solid var(--gold);padding:16px 18px}
.level>*{min-width:0}
.level b.lv{font-family:var(--sans);font-size:1.5rem;color:var(--accent);line-height:1.1}
.level h3{margin:0 0 .25em;font-size:1.08rem}
.level p{margin:0;color:var(--muted);font-size:.97rem}
.calc{background:var(--surface);border:1px solid var(--line);border-top:4px solid var(--accent);padding:22px;margin:1.6em 0;font-family:var(--sans)}
.calc-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(200px,1fr));gap:14px}
.calc-grid>*{min-width:0}
.calc label{display:block;font-size:.84rem;font-weight:600;color:var(--muted);margin-bottom:5px}
.calc input{width:100%;padding:9px 11px;border:1px solid #b9c2b3;border-radius:4px;font-size:1rem;font-family:var(--sans);background:#fff}
.calc-out{margin-top:20px;border-top:1px solid var(--line);padding-top:16px}
.calc-line{display:flex;justify-content:space-between;gap:12px;padding:5px 0;font-variant-numeric:tabular-nums}
.calc-line.total{border-top:2px solid var(--ink);margin-top:6px;padding-top:10px;font-weight:700;font-size:1.1rem;color:var(--accent)}
dl.terms dt{font-weight:700;margin-top:1.3em;font-family:var(--head);font-size:1.08rem}
dl.terms dd{margin:.3em 0 0;color:var(--muted)}
@media(max-width:768px){
 .hero-grid{grid-template-columns:1fr;gap:28px}
 .hero-home{padding:36px 0 30px}
 .level{grid-template-columns:48px 1fr;gap:10px}
}
.lvl{display:inline-block;font:700 .72rem var(--sans);letter-spacing:.04em;padding:2px 8px;border-radius:2px;white-space:nowrap}
.lvl-2{background:#e3efe3;color:#14532d}
.lvl-1{background:#f6efdc;color:#7a5c15}
.lvl-0{background:#f1e9e6;color:#7d3b2a}
td .none{color:var(--faint);font-style:italic}

*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{font-family:var(--font);background:var(--bg);color:var(--ink);line-height:1.68;font-size:17px;-webkit-font-smoothing:antialiased}
a{color:var(--accent);text-decoration:none}
a:hover{text-decoration:underline;text-underline-offset:3px}
a:focus-visible,.btn:focus-visible,input:focus-visible,select:focus-visible{outline:2px solid var(--accent);outline-offset:2px;border-radius:4px}
img{max-width:100%;height:auto}
.container{max-width:1040px;margin:0 auto;padding:0 24px}
.skip{position:absolute;left:-999px;top:0;background:var(--ink);color:#fff;padding:8px 14px;z-index:99}
.skip:focus{left:8px;top:8px}
h1,h2,h3,h4{line-height:1.22;letter-spacing:-.012em;font-family:var(--head)}
p{margin:0 0 1.05em}p:last-child{margin-bottom:0}
ul,ol{margin:0 0 1.1em 1.3em}li{margin-bottom:.45em}
strong{font-weight:650;color:var(--ink)}
.topbar{background:var(--topbar-bg);border-bottom:1px solid var(--line)}
.topbar-in{display:flex;align-items:center;justify-content:space-between;gap:20px;min-height:62px;flex-wrap:wrap;padding-top:8px;padding-bottom:8px}
.brand{display:flex;align-items:center;gap:10px;font-weight:700;color:var(--topbar-ink);font-family:var(--head);font-size:1.02rem;min-width:0}
.brand:hover{text-decoration:none}
.nav{display:flex;flex-wrap:wrap;gap:4px 18px;font-size:.93rem}
.nav a{color:var(--topbar-link);padding:4px 0}
.nav a:hover{color:var(--topbar-ink);text-decoration:none;box-shadow:0 2px 0 var(--accent)}
.page-head{padding:56px 0 30px;border-bottom:1px solid var(--line)}
.page-head h1{font-size:clamp(1.9rem,4.4vw,2.9rem);max-width:22ch}
.kicker{font-size:.8rem;letter-spacing:.12em;text-transform:uppercase;color:var(--accent);font-weight:700;margin-bottom:.9em}
.lede{font-size:1.18rem;color:var(--muted);max-width:62ch;margin-top:1em}
.scope{font-size:.84rem;color:var(--faint);padding:14px 0 0;max-width:80ch}
.prose{padding-top:26px;padding-bottom:70px;max-width:820px}
.prose.wide{max-width:1040px}
.prose h2{font-size:1.55rem;margin:2.1em 0 .7em}
.prose h3{font-size:1.18rem;margin:1.6em 0 .5em}
.prose>*:first-child{margin-top:0}
.table-scroll{overflow-x:auto;margin:1.4em 0;border:1px solid var(--line);border-radius:var(--radius);background:var(--surface)}
table{border-collapse:collapse;width:100%;min-width:560px;font-size:.95rem}
caption{caption-side:bottom;text-align:left;font-size:.82rem;color:var(--faint);padding:10px 14px}
th,td{padding:11px 14px;text-align:left;border-bottom:1px solid var(--line);vertical-align:top}
thead th{background:var(--surface-2);font-size:.8rem;letter-spacing:.05em;text-transform:uppercase;color:var(--muted)}
tbody tr:last-child th,tbody tr:last-child td{border-bottom:0}
tbody th{font-weight:600}
.score-table td,.score-table thead th:not(:first-child){text-align:right;font-variant-numeric:tabular-nums}
.callout{background:var(--tint);border-left:4px solid var(--accent);padding:16px 20px;border-radius:0 var(--radius) var(--radius) 0;margin:1.5em 0}
.callout p{margin-bottom:.6em}
.callout.answer{background:var(--surface);border:1px solid var(--line);border-left:4px solid var(--accent)}
.faq{margin-top:3em}
.faq-item{padding:16px 0;border-top:1px solid var(--line)}
.faq-item h3{font-size:1.08rem;margin:0 0 .4em}
.faq-item p{color:var(--muted)}
.stamp{margin-top:3em;font-size:.82rem;color:var(--faint);border-top:1px dashed var(--line);padding-top:14px}
.btn{display:inline-block;background:var(--accent);color:#fff;padding:11px 22px;border-radius:var(--radius);font-weight:650;font-size:.97rem}
.btn:hover{text-decoration:none;filter:brightness(1.08)}
.btn.ghost{background:transparent;color:var(--accent);border:1.5px solid var(--accent)}
.grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(250px,1fr));gap:18px;margin:1.4em 0}
.grid>*{min-width:0}
.card{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);padding:20px 22px}
.card h3{margin-top:0;font-size:1.08rem}
.card p{color:var(--muted);font-size:.96rem}
.stats{display:grid;grid-template-columns:repeat(auto-fit,minmax(170px,1fr));gap:14px;margin:1.6em 0}
.stat{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);padding:16px 18px}
.stat b{display:block;font-size:1.7rem;font-family:var(--head);color:var(--accent);line-height:1.1;font-variant-numeric:tabular-nums}
.stat span{font-size:.86rem;color:var(--muted)}
.site-footer{background:var(--foot-bg);color:var(--foot-ink);padding:44px 0 36px;margin-top:20px;font-size:.92rem}
.site-footer a{color:var(--foot-link)}
.foot-grid{display:grid;grid-template-columns:2fr 1fr;gap:30px}
.foot-grid>*{min-width:0}
.foot-brand{font-family:var(--head);font-size:1.15rem;font-weight:700;color:#fff;margin-bottom:.3em}
.foot-line{margin-bottom:.4em;opacity:.9}
.foot-h{font-weight:700;color:#fff;margin-bottom:.5em}
.site-footer ul{list-style:none;margin:0}
.site-footer li{margin-bottom:.3em}
.disclosure{margin-top:28px;padding-top:18px;border-top:1px solid rgba(255,255,255,.18);font-size:.86rem;opacity:.92;max-width:90ch}
.breadcrumb{font-size:.85rem}
@media(max-width:768px){
 .foot-grid{grid-template-columns:1fr}
 .page-head{padding:38px 0 24px}
 body{font-size:16.5px}
 .nav{gap:2px 14px}
}
.disc-banner{margin-top:10px;font-size:.88rem;background:var(--tint);border-left:3px solid var(--accent);padding:9px 14px;border-radius:0 var(--radius) var(--radius) 0;max-width:80ch}
.chart{margin:1.4em 0;background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);padding:14px 16px;color:var(--ink)}
.chart svg{width:100%;height:auto;display:block;font-family:var(--font)}
.chart figcaption{font-size:.82rem;color:var(--faint);margin-top:6px}
.refs{margin-top:2.6em}
.refs li{color:var(--muted)}
.privacy-note{font-size:.9rem;color:var(--muted)}