/* ZipCodeSalesTax - ledger theme (finance archetype), v20260702r */
:root{
  --p-ink:#1b2033;--p-ink2:#2a3050;--p-muted:#5c6272;--p-line:rgba(27,32,51,.14);
  --p-line2:rgba(27,32,51,.26);--p-bg:#f4f5f9;--p-card:#ffffff;--p-accent:#353d79;
  --p-accent2:#5560ab;--p-accent-dk:#242a54;--p-good:#2d7654;--p-paper:#eef0f6;
  --p-radius:6px;--p-maxw:1160px;
  --p-head:'IBM Plex Sans',system-ui,sans-serif;--p-body:'Inter Tight',system-ui,sans-serif;
  --p-mono:'IBM Plex Mono',ui-monospace,SFMono-Regular,Menlo,monospace;
}
*{box-sizing:border-box}html{scroll-behavior:smooth}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}*{animation-duration:.001ms!important;animation-iteration-count:1!important;transition-duration:.001ms!important}}
body{margin:0;font-family:var(--p-body);color:var(--p-ink);background:var(--p-bg);
  line-height:1.6;-webkit-font-smoothing:antialiased;min-height:100dvh}
img{max-width:100%;display:block}a{color:var(--p-accent);text-decoration:none}
a:hover{text-decoration:underline}
a:focus-visible,button:focus-visible,input:focus-visible,select:focus-visible,summary:focus-visible{
  outline:2.5px solid var(--p-accent2);outline-offset:2px;border-radius:3px}
.wrap{max-width:var(--p-maxw);margin:0 auto;padding:0 22px}
h1,h2,h3,h4{font-family:var(--p-head);line-height:1.12;margin:0 0 .5em;color:var(--p-ink);letter-spacing:-.2px}
h1{font-size:clamp(2rem,4.2vw,3rem);font-weight:600}
h2{font-size:clamp(1.4rem,2.6vw,1.9rem);font-weight:600}
h3{font-size:1.1rem;font-weight:600}p{margin:0 0 1rem}
.mono,.tabular{font-family:var(--p-mono);font-variant-numeric:tabular-nums}

/* header - light */
.site-header{position:sticky;top:0;z-index:50;background:var(--p-card);
  border-bottom:1px solid var(--p-line2);box-shadow:0 1px 0 rgba(27,32,51,.03)}
.site-header .wrap{display:flex;align-items:center;justify-content:space-between;height:64px}
.brand{display:flex;align-items:center;gap:11px}.brand:hover{text-decoration:none}
.brand .name{font-family:var(--p-head);font-weight:600;font-size:1.2rem;color:var(--p-ink);line-height:1}
.brand .name .accent{color:var(--p-accent)}
.brand .tag{display:block;font-size:.58rem;letter-spacing:1.6px;text-transform:uppercase;
  color:var(--p-muted);margin-top:3px;font-weight:600;font-family:var(--p-mono)}
.nav{display:flex;align-items:center;gap:2px}
.nav a{color:var(--p-ink2);font-weight:600;font-size:.84rem;padding:9px 13px;border-radius:5px}
.nav a:hover{color:var(--p-accent);background:var(--p-paper);text-decoration:none}
.nav a.cta{background:var(--p-accent);color:#fff}.nav a.cta:hover{background:var(--p-accent-dk);color:#fff}
.menu-btn{display:none;background:none;border:1px solid var(--p-line2);border-radius:5px;
  width:42px;height:38px;color:var(--p-ink);font-size:1.2rem;cursor:pointer}
@media(max-width:760px){.menu-btn{display:block}
  .nav{position:absolute;top:64px;left:0;right:0;background:var(--p-card);flex-direction:column;
    align-items:stretch;gap:0;padding:8px 14px 16px;display:none;border-bottom:1px solid var(--p-line2)}
  .nav.open{display:flex}.nav a{padding:13px 12px;border-bottom:1px solid var(--p-line)}
  .nav a.cta{margin-top:8px;text-align:center}}

/* hero - split-screen with ledger divider (signature layout) */
.hero{position:relative;background:var(--p-paper);overflow:hidden;border-bottom:1px solid var(--p-line2)}
.hero .wrap{position:relative;padding:52px 22px 46px}
.hero-grid{display:grid;grid-template-columns:.92fr 1.08fr;gap:0;align-items:stretch}
.hero-grid>.hero-copy{padding-right:38px;position:relative;display:flex;flex-direction:column;justify-content:center}
.hero-grid>.hero-copy::after{content:"";position:absolute;top:6px;bottom:6px;right:0;width:1px;
  background:repeating-linear-gradient(180deg,var(--p-line2) 0,var(--p-line2) 6px,transparent 6px,transparent 12px)}
.hero-grid>.hero-tool{padding-left:38px}
@media(max-width:900px){.hero-grid{grid-template-columns:1fr;gap:30px}
  .hero-grid>.hero-copy{padding-right:0}.hero-grid>.hero-copy::after{display:none}
  .hero-grid>.hero-tool{padding-left:0}}
.eyebrow{display:inline-flex;align-items:center;gap:8px;font-weight:700;text-transform:uppercase;
  letter-spacing:1.8px;font-size:.72rem;color:var(--p-accent);margin-bottom:14px;font-family:var(--p-mono)}
.eyebrow::before{content:"";width:22px;height:2px;background:var(--p-accent);display:inline-block}
.hero h1{color:var(--p-ink);max-width:14ch}.hero h1 em{color:var(--p-accent);font-style:normal}
.hero p.sub{font-size:1.08rem;color:var(--p-ink2);max-width:48ch;margin:6px 0 24px}
.hero .actions{display:flex;flex-wrap:wrap;gap:12px}
.hero-mascot{width:180px;height:auto;margin-top:22px}
@media(max-width:900px){.hero-mascot{width:140px;margin:18px auto 0}}

.btn{display:inline-flex;align-items:center;gap:9px;font-family:var(--p-head);font-weight:600;
  font-size:.93rem;padding:12px 22px;border-radius:var(--p-radius);border:0;cursor:pointer;
  transition:transform .12s,background .12s;text-decoration:none}
.btn:active{transform:scale(.98)}
.btn-primary{background:var(--p-accent);color:#fff}
.btn-primary:hover{background:var(--p-accent-dk);color:#fff;text-decoration:none}
.btn-ghost{background:transparent;color:var(--p-ink);border:1.5px solid var(--p-line2)}
.btn-ghost:hover{border-color:var(--p-accent);color:var(--p-accent);text-decoration:none}
.btn-block{width:100%;justify-content:center}

.trust{background:var(--p-ink);color:rgba(255,255,255,.85)}
.trust .wrap{display:flex;flex-wrap:wrap;justify-content:center;gap:10px 30px;padding:13px 22px;
  font-size:.8rem;font-weight:600;font-family:var(--p-mono)}.trust span{display:inline-flex;align-items:center;gap:8px}
.trust .dot{color:var(--p-accent2)}

section{padding:56px 0}.section-head{text-align:center;max-width:60ch;margin:0 auto 34px}
.section-head .kicker{font-family:var(--p-mono);text-transform:uppercase;letter-spacing:1.8px;
  color:var(--p-accent);font-size:.76rem;font-weight:700;margin-bottom:8px}
.section-head p{color:var(--p-muted)}

.grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(260px,1fr));gap:18px}
.card{background:var(--p-card);border:1px solid var(--p-line2);border-radius:var(--p-radius);padding:22px;
  transition:border-color .15s,transform .15s;display:flex;flex-direction:column}
.card:hover{border-color:var(--p-accent);transform:translateY(-2px);text-decoration:none}
.card .ico{width:42px;height:42px;border-radius:5px;background:var(--p-paper);display:flex;
  align-items:center;justify-content:center;margin-bottom:14px;border:1px solid var(--p-line2)}
.card .ico svg{width:24px;height:24px}
.card h3{margin-bottom:7px}.card p{color:var(--p-muted);font-size:.92rem;margin:0 0 16px;flex:1}
.card .go{font-family:var(--p-mono);font-weight:600;font-size:.8rem;color:var(--p-accent)}

.tool-hero{background:var(--p-ink);color:#fff}
.tool-hero .wrap{padding:38px 22px 34px;position:relative}
.tool-hero .crumbs{font-size:.78rem;color:rgba(255,255,255,.55);margin-bottom:12px;font-weight:600;font-family:var(--p-mono)}
.tool-hero .crumbs a{color:rgba(255,255,255,.8)}.tool-hero h1{color:#fff}
.tool-hero p{color:rgba(255,255,255,.78);max-width:62ch;margin:0}
body:not(:has(.calc-layout)) .tool-hero .wrap{max-width:760px}

.calc-layout{display:grid;grid-template-columns:1fr 1fr;gap:24px;margin-top:-34px;position:relative;z-index:5}
@media(max-width:860px){.calc-layout{grid-template-columns:1fr;margin-top:-24px}}
.panel{background:var(--p-card);border:1px solid var(--p-line2);border-radius:var(--p-radius);
  padding:24px}.panel h2{font-size:1.1rem;margin-bottom:16px;font-family:var(--p-head)}
.field{margin-bottom:14px}.field label{display:block;font-weight:600;font-size:.8rem;
  color:var(--p-ink2);margin-bottom:6px}
.field input,.field select{width:100%;padding:11px 12px;border:1.5px solid var(--p-line2);border-radius:5px;
  font-size:1rem;font-family:var(--p-mono);background:#fff;color:var(--p-ink)}
.field input:focus,.field select:focus{outline:none;border-color:var(--p-accent);
  box-shadow:0 0 0 3px rgba(53,61,121,.16)}
.results .panel{background:var(--p-ink);border:0;color:#fff;height:100%}.results h2{color:#fff}
.result-row{display:flex;justify-content:space-between;align-items:baseline;gap:12px;padding:13px 0;
  border-bottom:1px solid rgba(255,255,255,.12)}.result-row:last-child{border-bottom:0}
.result-row .lbl{color:rgba(255,255,255,.68);font-weight:600;font-size:.88rem}
.result-row .val{font-family:var(--p-mono);font-weight:600;font-size:1.4rem;color:#fff;font-variant-numeric:tabular-nums}
.result-row.hero-result{padding-bottom:16px;border-bottom:2px solid var(--p-accent2)}
.result-row.hero-result .val{font-size:2rem;color:#fff}
.note{font-size:.8rem;color:var(--p-muted);margin-top:14px}.results .note{color:rgba(255,255,255,.55)}

/* signature element: statement-total readout */
.statement-total{margin:6px 0 4px}
.statement-total .amt{font-family:var(--p-mono);font-weight:600;font-size:clamp(1.8rem,4vw,2.6rem);
  color:var(--p-ink);font-variant-numeric:tabular-nums;display:block;border-bottom:3px double var(--p-ink2);
  padding-bottom:6px}
.statement-total .cap{font-size:.72rem;text-transform:uppercase;letter-spacing:1.4px;color:var(--p-muted);
  font-family:var(--p-mono);margin-top:6px;display:block}

.authority-strip{display:flex;flex-wrap:wrap;gap:8px 22px;padding:13px 16px;margin-top:14px;
  background:var(--p-paper);border:1px solid var(--p-line2);border-radius:5px;font-size:.78rem;
  color:var(--p-ink2);font-family:var(--p-mono)}
.authority-strip span{display:inline-flex;align-items:center;gap:6px}

.prose{max-width:760px;margin:0 auto}.prose p{color:var(--p-ink2)}.lead{font-size:1.08rem;color:var(--p-ink2)}
.prose table{width:100%;border-collapse:collapse;margin:20px 0;font-size:.92rem}
.prose th{text-align:left;font-size:.7rem;letter-spacing:.08em;text-transform:uppercase;color:var(--p-muted);
  border-bottom:2px solid var(--p-ink);padding:9px 10px;font-family:var(--p-mono)}
.prose td{padding:9px 10px;border-bottom:1px solid var(--p-line);vertical-align:top}
.prose td.num,.prose td:nth-child(2),.prose td:nth-child(3){font-family:var(--p-mono);font-variant-numeric:tabular-nums;white-space:nowrap}
.prose tr:hover td{background:var(--p-paper)}

.callout{background:var(--p-paper);border-left:3px solid var(--p-accent);border-radius:0 5px 5px 0;
  padding:16px 18px;margin:22px 0}
.def-block{background:var(--p-card);border:1px solid var(--p-line2);border-left:3px solid var(--p-accent2);
  border-radius:0 5px 5px 0;padding:16px 18px;margin:22px 0}
.def-block .dt{font-family:var(--p-mono);font-weight:700;font-size:.72rem;text-transform:uppercase;
  letter-spacing:1px;color:var(--p-accent);margin-bottom:6px}

.faq{max-width:760px;margin:0 auto}.faq details{background:var(--p-card);border:1px solid var(--p-line2);
  border-radius:5px;padding:2px 20px;margin-bottom:10px}
.faq summary{font-family:var(--p-head);font-weight:600;font-size:1.02rem;cursor:pointer;padding:15px 0;
  list-style:none;display:flex;justify-content:space-between;align-items:center;gap:14px}
.faq summary::-webkit-details-marker{display:none}
.faq summary::after{content:"+";font-size:1.4rem;color:var(--p-accent);font-weight:300}
.faq details[open] summary::after{content:"-"}.faq details p{color:var(--p-ink2);margin:0 0 16px}
.alt{background:var(--p-paper)}
.supplier{background:var(--p-ink);border-radius:var(--p-radius);padding:28px;text-align:center;color:#fff;margin:34px 0}
.supplier h3{color:#fff;font-size:1.25rem;margin-bottom:8px}
.supplier p{color:rgba(255,255,255,.78);max-width:52ch;margin:0 auto 18px}
.supplier .actions{display:flex;flex-wrap:wrap;gap:12px;justify-content:center}

.form-card{max-width:560px;margin:0 auto;background:var(--p-card);border:1px solid var(--p-line2);
  border-radius:var(--p-radius);padding:28px}
textarea{width:100%;padding:11px 12px;border:1.5px solid var(--p-line2);border-radius:5px;font-size:1rem;
  font-family:var(--p-body);min-height:130px;resize:vertical}
textarea:focus{outline:none;border-color:var(--p-accent);box-shadow:0 0 0 3px rgba(53,61,121,.16)}

/* voice band */
.voice-band{background:var(--p-accent);color:#fff;padding:40px 0}
.voice-band .wrap{max-width:800px}
.voice-band p{font-family:var(--p-head);font-size:clamp(1.2rem,2.6vw,1.7rem);font-weight:600;
  line-height:1.3;margin:0;color:#fff;letter-spacing:-.2px}

/* utility bar (per-tool) */
.util-bar{display:flex;gap:10px;flex-wrap:wrap;margin-top:14px}
.util-bar button{font-family:var(--p-mono);font-size:.78rem;font-weight:600;background:var(--p-card);
  border:1px solid var(--p-line2);border-radius:5px;padding:8px 13px;color:var(--p-ink2);cursor:pointer}
.util-bar button:hover{border-color:var(--p-accent);color:var(--p-accent)}
.util-bar button:active{transform:scale(.98)}

/* author box */
.author-box{display:flex;gap:18px;align-items:flex-start;background:var(--p-paper);
  border:1px solid var(--p-line2);border-radius:var(--p-radius);padding:22px 24px;margin:34px auto 8px;max-width:840px}
.author-box img{border-radius:50%;object-fit:cover;flex:none}
.author-box .kicker{font-size:.7rem;letter-spacing:.05em;text-transform:uppercase;color:var(--p-muted);
  font-weight:700;margin-bottom:3px;font-family:var(--p-mono)}
.author-box .name{font-weight:700;font-size:1.02rem;line-height:1.2;font-family:var(--p-head)}
.author-box .role{font-size:.83rem;color:var(--p-muted);margin:1px 0 9px}
.author-box p{margin:0;font-size:.9rem;line-height:1.58;color:var(--p-ink2)}
.byline-mini{display:flex;align-items:center;gap:10px;margin:16px 0;font-size:.88rem;color:var(--p-muted)}
.byline-mini img{border-radius:50%;object-fit:cover}

/* footer - grid, never flex */
.site-footer{background:var(--p-ink);color:rgba(255,255,255,.65);margin-top:20px}
.site-footer .wrap{padding:44px 22px 24px}
.foot-grid{display:grid;grid-template-columns:1.8fr 1fr 1fr;gap:32px;margin-bottom:28px}
.foot-grid a{display:block;margin:0 0 9px}
@media(max-width:760px){.foot-grid{grid-template-columns:1fr 1fr}}
.foot-grid .blurb{max-width:34ch;font-size:.9rem;margin-top:12px}
.foot-col h4{font-family:var(--p-head);font-size:.82rem;color:#fff;margin-bottom:13px;text-transform:uppercase;letter-spacing:.5px}
.foot-col a{display:block;color:rgba(255,255,255,.65);font-size:.9rem;padding:5px 0}
.foot-col a:hover{color:var(--p-accent2);text-decoration:none}
.site-footer .brand svg rect{fill:#fff}
.site-footer .brand .name{color:#fff}
.site-footer .brand .name .accent{color:var(--p-accent2)}
.foot-bottom{border-top:1px solid rgba(255,255,255,.12);padding-top:20px;display:flex;flex-wrap:wrap;
  justify-content:space-between;gap:12px;font-size:.8rem;color:rgba(255,255,255,.45)}
.disclosure{background:rgba(0,0,0,.28);color:rgba(255,255,255,.5);font-size:.76rem;text-align:center;padding:14px 22px}
.center{text-align:center}

/* dataset page: cite + download */
.dataset-meta{display:flex;flex-wrap:wrap;gap:8px 20px;font-size:.82rem;color:var(--p-muted);
  font-family:var(--p-mono);margin:10px 0 22px;padding:12px 16px;background:var(--p-paper);
  border:1px solid var(--p-line2);border-radius:5px}
.cite-box{background:var(--p-card);border:1px solid var(--p-line2);border-left:3px solid var(--p-ink2);
  border-radius:0 5px 5px 0;padding:14px 18px;margin:22px 0;font-size:.86rem;color:var(--p-ink2)}
.cite-box .k{font-family:var(--p-mono);font-weight:700;font-size:.7rem;text-transform:uppercase;
  letter-spacing:1px;color:var(--p-muted);display:block;margin-bottom:5px}
.cite-box code{font-family:var(--p-mono);font-size:.82rem;background:var(--p-paper);padding:2px 5px;border-radius:3px}