/* Shared components and responsive Follow the burn identity.
   Semantic colours live in design-tokens.css. Page-specific showcase rules follow
   the base components so methods, utility pages and stored issues share the shell. */
*, *::before, *::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body { margin: 0; background: var(--bg); color: var(--text); font-family: var(--font-body);
  font-size: 17px; line-height: 1.6; -webkit-font-smoothing: antialiased;
  font-variant-numeric: tabular-nums; }
a { color: var(--text); text-decoration: none; }
a:hover { color: var(--accent); }
p a, li a, .sub a, .fine a, .note a { text-decoration: underline; text-underline-offset: 3px; text-decoration-color: var(--border-2); }
p a:hover, li a:hover { text-decoration-color: var(--accent); }
:focus-visible { outline: 2px solid var(--focus); outline-offset: 3px; }
p { margin: 0; text-wrap: pretty; }
ul { margin: 0; padding: 0; list-style: none; }
figure { margin: 0; }
.sr { position: absolute; left: -10000px; width: 1px; height: 1px; overflow: hidden; }
.hp { position: absolute; left: -10000px; top: auto; width: 1px; height: 1px; overflow: hidden; }
.mono { font-family: var(--font-mono); }

/* ---------- shell ---------- */
.wrap { max-width: 1120px; margin: 0 auto; padding: 0 24px; }
.mast { display: flex; align-items: center; justify-content: space-between; gap: 24px; height: 72px;
  border-bottom: 1px solid var(--border); }
/* The wordmark: Source Serif 4 700 for the Latin letters; the tau is the original GFS Didot
   glyph (the favicon's design), sized 1.04x and given a synthetic 600 so its stem meets the
   700 letters — size, weight and baseline only, never the glyph. */
.wm { font-family: var(--font-wordmark); font-weight: 700; font-size: 26px; letter-spacing: .10em;
  line-height: 1; white-space: nowrap; color: var(--text); }
.wm:hover { color: var(--text); }
.wm-sp { display: inline-block; width: .5em; }
.tau { font-family: var(--font-tau); font-weight: 600; font-size: 1.04em; color: var(--accent); }
.nav { display: flex; gap: 28px; font-size: 15px; font-weight: 500; }
.nav a { color: var(--text-2); padding: 10px 0; }
.nav a:hover, .nav a[aria-current] { color: var(--text); }
.mast-r { display: flex; align-items: center; gap: 20px; }
/* The theme toggle: system -> light -> dark. The icon follows the html stamp, so the
   right one shows before the script runs. */
.theme { display: inline-flex; align-items: center; justify-content: center; width: 36px; height: 36px;
  padding: 0; border: 1px solid var(--border-2); border-radius: 999px; background: transparent;
  color: var(--text-2); cursor: pointer; }
.theme:hover { color: var(--text); border-color: var(--text); }
.theme:focus-visible { outline: 2px solid var(--focus); outline-offset: 2px; }
.theme svg { width: 18px; height: 18px; display: none; }
:root:not([data-theme]) .theme .i-auto { display: block; }
:root[data-theme="light"] .theme .i-sun { display: block; }
:root[data-theme="dark"] .theme .i-moon { display: block; }
main { display: block; }
.sec { padding-top: 72px; }
.sec.last { padding-bottom: 72px; }
.foot { margin-top: 72px; padding: 22px 0 40px; border-top: 1px solid var(--border); display: flex;
  flex-wrap: wrap; gap: 8px 24px; font-size: 14px; color: var(--text-3); }
.foot a { color: var(--text-3); } .foot a:hover { color: var(--accent); }
.foot .sp { flex-grow: 1; }

/* ---------- type ---------- */
h1 { font-size: 52px; line-height: 1.08; letter-spacing: -.02em; margin: 0 0 20px; font-weight: 600; text-wrap: balance; }
h2 { font-size: 28px; line-height: 1.2; letter-spacing: -.012em; margin: 0 0 8px; font-weight: 600; text-wrap: balance; }
h3 { font-size: 18px; line-height: 1.35; margin: 0; font-weight: 600; }
.eyebrow { display: block; font-size: 13px; line-height: 18px; font-weight: 600; letter-spacing: .06em;
  text-transform: uppercase; color: var(--text-3); margin-bottom: 14px; }
.lede { font-size: 19px; line-height: 1.5; color: var(--text-2); max-width: 52ch; margin-bottom: 28px; }
.sub { font-size: 17px; color: var(--text-2); max-width: 64ch; margin-bottom: 28px; }
.small { font-size: 15px; line-height: 1.5; color: var(--text-3); }
.fine { font-size: 14px; line-height: 1.5; color: var(--text-3); max-width: 74ch; }

/* ---------- controls ---------- */
.btn { display: inline-flex; align-items: center; justify-content: center; height: 46px; padding: 0 20px;
  background: var(--btn); color: var(--btn-text); font: inherit; font-weight: 600; font-size: 15px; line-height: 1;
  border: 0; border-radius: var(--radius); cursor: pointer; white-space: nowrap; text-decoration: none; }
.btn:hover { color: var(--btn-text); opacity: .9; }
.btn--secondary { background: transparent; color: var(--text); border: 1px solid var(--border-2); }
.btn--secondary:hover { opacity: 1; color: var(--text); border-color: var(--text); }
.btn--lg { height: 52px; padding: 0 24px; font-size: 16px; }
.field, select.field { height: 46px; width: 100%; padding: 0 14px; background: var(--bg-2);
  border: 1px solid var(--border-2); border-radius: var(--radius); color: var(--text); font: inherit;
  font-size: 16px; outline: none; -webkit-appearance: none; appearance: none; }
.field::placeholder { color: var(--text-3); }
.field:focus { border-color: var(--focus); box-shadow: 0 0 0 2px var(--focus); }
label.lab { display: block; font-size: 14px; font-weight: 500; color: var(--text-2); margin-bottom: 6px; }
.check { display: flex; flex-direction: column; gap: 10px; max-width: 560px; }
.check-in { display: flex; gap: 10px; }
.check-in .field { flex: 1 1 auto; min-width: 0; }
.msg { display: none; font-size: 15px; line-height: 1.5; padding: 10px 14px; border-radius: var(--radius);
  background: var(--bg-3); color: var(--text); margin-top: 14px; max-width: 560px; }
.msg.show { display: block; }

/* ---------- hero ---------- */
.hero { display: grid; grid-template-columns: minmax(0, 1.05fr) minmax(0, .95fr); gap: 64px; align-items: start; }
.acts-row { display: flex; flex-wrap: wrap; gap: 12px; }

/* ---------- result card ---------- */
.card { background: var(--bg-2); border: 1px solid var(--border); border-radius: var(--radius-lg); padding: 24px; }
.card-head { display: flex; align-items: center; flex-wrap: wrap; gap: 6px 10px; margin-bottom: 14px; }
.badge { display: inline-flex; align-items: center; height: 24px; padding: 0 10px; border-radius: 999px;
  background: var(--bg-3); color: var(--text-2); font-size: 13px; font-weight: 600; letter-spacing: .02em; }
.cap { font-family: var(--font-mono); font-size: 13px; color: var(--text-3); }
.card dl { margin: 0; }
.kv { display: flex; justify-content: space-between; align-items: baseline; gap: 24px; padding: 12px 0;
  border-top: 1px solid var(--border); }
.kv dt { font-size: 15px; line-height: 1.4; color: var(--text-2); }
.kv dt b { display: block; color: var(--text); font-weight: 500; font-size: 16px; }
.kv dd { margin: 0; font-weight: 500; font-size: 17px; white-space: nowrap; }
.kv.key { border-top: 2px solid var(--border-2); margin-top: 4px; }
.kv.key dd { color: var(--accent); font-size: 30px; font-weight: 600; line-height: 1.1; }
.note { font-size: 14px; line-height: 1.5; color: var(--text-3); padding-top: 12px; }
.card form { margin-top: 14px; }
.card .check-in { margin-top: 6px; }

/* ---------- packs (three cards) + the order form ---------- */
.packs { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 20px; margin-top: 8px; }
.pack { display: flex; flex-direction: column; gap: 12px; padding: 24px; background: var(--bg-2);
  border: 1px solid var(--border); border-radius: var(--radius-lg); }
.pack.hi { border-color: var(--border-2); }
.pack .price { font-size: 32px; line-height: 1.1; font-weight: 600; letter-spacing: -.01em; }
.pack .price small { display: block; font-size: 14px; font-weight: 400; color: var(--text-3); letter-spacing: 0; margin-top: 4px; }
.pack .price s { color: var(--text-3); font-weight: 400; font-size: 20px; margin-left: 8px; }
.pack p { font-size: 15px; line-height: 1.5; color: var(--text-2); flex-grow: 1; }
.pack .btn { width: 100%; }
.tag { display: inline-flex; align-self: flex-start; height: 24px; align-items: center; padding: 0 10px;
  border-radius: 999px; font-size: 13px; font-weight: 600; color: var(--accent); background: var(--bg-3); }
.tfoot { display: flex; flex-wrap: wrap; gap: 8px 28px; margin-top: 20px; font-size: 15px; color: var(--text-2); }
.order { display: none; margin-top: 24px; max-width: 560px; }
.order:target, .order.show { display: grid; gap: 14px; }
.order h3 { margin-bottom: 2px; }
.order .fine { margin-top: 2px; }

/* ---------- proof, stats, products ---------- */
.proof { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 20px; }
.proof li { padding: 18px 0 0; border-top: 1px solid var(--border-2); font-size: 16px; line-height: 1.5; }
.proof li span { display: block; font-size: 13px; font-weight: 600; color: var(--text-3); margin-bottom: 8px; }
.stats { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 20px; }
.stat { padding: 20px 0 0; border-top: 1px solid var(--border-2); }
.stat .l { font-size: 13px; font-weight: 600; letter-spacing: .06em; text-transform: uppercase; color: var(--text-3); }
.stat .n { font-size: 40px; line-height: 1.1; font-weight: 600; letter-spacing: -.02em; margin: 6px 0 8px; }
.stat p { font-size: 15px; line-height: 1.5; color: var(--text-2); max-width: 30ch; }
.prods { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 20px; }
.prod { display: flex; flex-direction: column; gap: 12px; padding: 24px; background: var(--bg-2);
  border: 1px solid var(--border); border-radius: var(--radius-lg); }
.prod .price { font-size: 26px; font-weight: 600; line-height: 1.1; }
.prod .price small { font-size: 14px; font-weight: 400; color: var(--text-3); margin-left: 4px; }
.prod p { font-size: 15px; line-height: 1.5; color: var(--text-2); flex-grow: 1; }
.prod .acts { display: flex; flex-direction: column; gap: 10px; }
.prod .acts .btn { width: 100%; }
.prod .more { font-size: 15px; font-weight: 500; color: var(--text-2); text-align: center; }
.prod .more:hover { color: var(--accent); }
.reveal { display: none; }
.reveal:target, .reveal.show { display: grid; gap: 10px; }
.reveal .btn { width: 100%; }
.cta { display: flex; flex-wrap: wrap; align-items: center; gap: 16px 24px; }

/* ---------- charts (home): thin marks, hairline grid, text in text tokens ---------- */
.vizgrid { display: grid; grid-template-columns: minmax(0, 7fr) minmax(0, 5fr); gap: 20px; }
.viz { margin: 0; padding: 20px 20px 14px; background: var(--bg-2); border: 1px solid var(--border); border-radius: var(--radius-lg); min-width: 0; }
.viz--full { grid-column: 1 / -1; }
.viz figcaption h3 { font-size: 17px; line-height: 1.35; margin-bottom: 4px; text-wrap: balance; }
.viz figcaption .small { margin-bottom: 12px; max-width: 70ch; }
.viz-plot { width: 100%; }
.viz-plot svg { display: block; width: 100%; height: auto; overflow: visible; }
.viz-ax { font-size: 11px; fill: var(--text-3); }
.viz-cat, .viz-val, .viz-lab { font-size: 12px; fill: var(--text-2); }
.viz-val { font-variant-numeric: tabular-nums; }
.viz-halo { paint-order: stroke; stroke: var(--bg-2); stroke-width: 4px; stroke-linejoin: round; }
.viz-grid { stroke: var(--border); stroke-width: 1; }
.viz-base { stroke: var(--border-2); stroke-width: 1; }
.viz-area { fill: var(--viz-1); fill-opacity: .12; }
.viz-bar1 { fill: var(--viz-1); }
.viz-hit:hover .viz-bar1, .viz-hit:focus .viz-bar1 { fill-opacity: .8; }
.viz-hit:focus { outline: none; } .viz-hit:focus-visible .viz-bar1 { stroke: var(--focus); stroke-width: 2; }
.viz-line1 { fill: none; stroke: var(--viz-1); stroke-width: 2; stroke-linejoin: round; stroke-linecap: round; }
.viz-line2 { fill: none; stroke: var(--viz-2); stroke-width: 2; stroke-linejoin: round; stroke-linecap: round; }
.viz-dot1 { fill: var(--viz-1); stroke: var(--bg-2); stroke-width: 2; }
.viz-dot2 { fill: var(--viz-2); stroke: var(--bg-2); stroke-width: 2; }
.viz-cross { stroke: var(--text-3); stroke-width: 1; }
.viz-tip { display: none; position: fixed; z-index: 5; pointer-events: none; background: var(--bg-2); color: var(--text);
  border: 1px solid var(--border-2); border-radius: var(--radius); padding: 8px 10px; font-size: 13px; line-height: 1.4;
  box-shadow: 0 6px 20px rgba(0, 0, 0, .18); max-width: 280px; }
.viz-tip-row { display: flex; align-items: baseline; gap: 8px; white-space: nowrap; }
.viz-tip-row i { display: inline-block; width: 12px; height: 2px; border-radius: 1px; align-self: center; }
.viz-tip-row b { font-weight: 600; font-variant-numeric: tabular-nums; }
.viz-tip-row span { color: var(--text-3); }
.viz-legend { display: flex; flex-wrap: wrap; gap: 4px 18px; font-size: 12px; color: var(--text-2); margin: -4px 0 8px; }
.viz-legend span { display: inline-flex; align-items: center; gap: 6px; }
.viz-legend i { display: inline-block; width: 10px; height: 10px; border-radius: 2px; }
.viz-legend i.line { height: 2px; width: 14px; border-radius: 1px; }
.viz-legend .k1 { background: var(--viz-1); } .viz-legend .k2 { background: var(--viz-2); }
.viz-table { margin-top: 10px; }
.viz-table summary { cursor: pointer; font-size: 13px; color: var(--text-3); }
.viz-table table { width: 100%; border-collapse: collapse; font-size: 13px; margin-top: 8px; font-variant-numeric: tabular-nums; }
.viz-table th, .viz-table td { text-align: left; padding: 5px 12px 5px 0; border-bottom: 1px solid var(--border); }
.viz-table th { font-size: 12px; font-weight: 600; color: var(--text-3); }
.why { font-size: 17px; line-height: 1.55; color: var(--text-2); max-width: 78ch; margin: -4px 0 22px; }
.league .scroll { overflow-x: auto; }
.league-t { width: 100%; border-collapse: collapse; font-size: 14px; font-variant-numeric: tabular-nums; }
.league-t th, .league-t td { text-align: left; padding: 8px 12px 8px 0; border-bottom: 1px solid var(--border); vertical-align: middle; }
.league-t th { font-size: 12px; font-weight: 600; letter-spacing: .02em; color: var(--text-3); white-space: nowrap; }
.league-t th button { all: unset; cursor: pointer; color: inherit; font: inherit; }
.league-t th button::after { content: " \2195"; color: var(--border-2); }
.league-t th[aria-sort="descending"] button::after { content: " \2193"; color: var(--text-2); }
.league-t th[aria-sort="ascending"] button::after { content: " \2191"; color: var(--text-2); }
.league-t th button:focus-visible { outline: 2px solid var(--focus); outline-offset: 2px; }
.league-t .num { text-align: right; }
.league-t td.n { font-weight: 500; white-space: nowrap; }
.league-t .sn { font-family: var(--font-mono); font-size: 12px; color: var(--text-3); margin-right: 2px; }
.league-t td.claimed { color: var(--text-3); font-size: 13px; max-width: 30ch; }
.league-t td.gap { font-size: 13px; color: var(--text-2); }
.league-t .g-s { display: none; }
.league-t td.gap-no { color: var(--accent); }
.league-t td.gap-none { color: var(--text-3); }
.league-t td.spk { width: 80px; padding-right: 0; }
.league-t .lspark { display: block; }
.league-t tr.sep td { padding-top: 16px; font-size: 12px; font-weight: 600; letter-spacing: .04em; text-transform: uppercase; color: var(--text-3); border-bottom: 1px solid var(--border-2); }
.league-more { margin-top: 12px; height: 40px; font-size: 14px; }
.pitch { display: flex; flex-wrap: wrap; align-items: center; justify-content: space-between; gap: 14px 24px; margin-top: 24px; padding: 18px 20px; border: 1px solid var(--border); border-radius: var(--radius-lg); background: var(--bg-2); }
.pitch p { font-size: 16px; line-height: 1.5; color: var(--text-2); max-width: 70ch; }
.pitch b { color: var(--text); font-weight: 600; }
.spark { display: grid; gap: 6px; margin-top: 2px; }
.spark .small { font-size: 13px; }
.viz-area-muted { fill: var(--text-3); fill-opacity: .12; }
.viz-line-muted { fill: none; stroke: var(--text-3); stroke-width: 1.5; }
.viz-line-accent { fill: none; stroke: var(--accent); stroke-width: 2; stroke-linecap: round; }
.viz-dot-accent { fill: var(--accent); stroke: var(--bg-2); stroke-width: 2; }

/* ---------- prose (method, terms, short pages) ---------- */
.prose { max-width: 68ch; }
.prose h1 { font-size: 40px; line-height: 1.12; margin-bottom: 24px; }
.prose h2 { font-size: 26px; margin-top: 56px; margin-bottom: 12px; }
.prose h3 { font-size: 19px; margin-top: 32px; margin-bottom: 8px; }
.prose p, .prose ul, .prose blockquote, .prose pre { margin-top: 18px; }
.prose h2 + p, .prose h3 + p { margin-top: 0; }
.prose > p:first-child { margin-top: 0; }
.prose blockquote { border-left: 3px solid var(--accent); padding-left: 16px; color: var(--text-2); margin-left: 0; margin-right: 0; }
.prose pre { border: 1px solid var(--border); background: var(--bg-2); border-radius: var(--radius); padding: 14px 18px;
  font-family: var(--font-mono); font-size: 14px; line-height: 1.6; overflow-x: auto; }
.prose code { font-family: var(--font-mono); font-size: .92em; }
.prose ul li { position: relative; padding-left: 20px; margin-top: 6px; }
.prose ul li::before { content: ""; position: absolute; left: 4px; top: .75em; width: 6px; height: 6px; border-radius: 50%; background: var(--accent); }
.prose strong { font-weight: 600; }
.prose .scroll { overflow-x: auto; max-width: 100%; margin-top: 18px; }
.prose table { width: 100%; border-collapse: collapse; font-size: 15px; }
.prose th, .prose td { text-align: left; padding: 10px 16px 10px 0; border-bottom: 1px solid var(--border); vertical-align: top; }
.prose th { font-size: 13px; font-weight: 600; letter-spacing: .04em; text-transform: uppercase; color: var(--text-3); }
.prose .eyebrow { margin-top: 56px; }
.prose .btn { margin-top: 18px; }

/* ---------- phone / narrow ---------- */
@media (max-width: 899px) {
  .hero { grid-template-columns: minmax(0, 1fr); gap: 32px; }
  .packs, .proof, .stats, .prods, .vizgrid { grid-template-columns: minmax(0, 1fr); }
  h1 { font-size: 40px; }
}
@media (max-width: 700px) {
  .wrap { padding: 0 20px; }
  .mast { height: auto; flex-wrap: wrap; padding: 16px 0 12px; gap: 10px 20px; }
  .wm { font-size: 22px; }
  .mast-r { width: 100%; justify-content: space-between; }
  .nav { gap: 0 18px; flex-wrap: wrap; }
  .nav a { padding: 8px 0; }
  .theme { width: 44px; height: 44px; }
  .sec { padding-top: 48px; } .sec.last { padding-bottom: 48px; }
  h1 { font-size: 36px; margin-bottom: 14px; } h2 { font-size: 24px; }
  .lede { font-size: 17px; margin-bottom: 20px; }
  .check-in { flex-direction: column; }
  .btn { height: 48px; } .field, select.field { height: 48px; }
  .check .btn, .cta .btn, .acts-row .btn { width: 100%; }
  .stat .n { font-size: 34px; } .kv.key dd { font-size: 26px; }
  .viz { padding: 16px 14px 12px; }
  .league-t .hide-p, .league-t .g-l { display: none; }
  .league-t .g-s { display: inline; white-space: nowrap; }
  .league-t { font-size: 13px; }
  .league-t td.n { white-space: normal; }
  .pitch .btn { width: 100%; }
  .foot { margin-top: 48px; }
  .prose h1 { font-size: 32px; }
}
@media (prefers-reduced-motion: reduce) { *, *::before, *::after { transition: none !important; } }

/* Follow the burn — shared identity, homepage and tax experience. */
html { scroll-padding-top: 24px; }
[hidden] { display: none !important; }
.wrap { max-width: 1280px; padding: 0 56px; }
.mast { height: 98px; }
.wm { font-weight: 500; font-size: 25px; letter-spacing: -.035em; text-transform: lowercase; }
.wm-sp { width: .28em; }
.nav { gap: 24px; font-size: 13px; font-weight: 400; align-items: center; }
.nav a[href="/tax/method"], .nav a[href="/about"] { display: none; }
.nav a:last-child { border: 1px solid var(--border-2); padding: 11px 16px; border-radius: var(--radius); color: var(--text); }
.nav a[aria-current] { text-decoration: underline; text-decoration-color: var(--accent); text-underline-offset: 7px; }
.mast-r { gap: 14px; }
.theme { width: 38px; height: 38px; }
.skip-link { position: absolute; left: 16px; top: -100px; z-index: 10; background: var(--btn); color: var(--btn-text); padding: 12px 20px; }
.skip-link:focus { top: 12px; }
h1, h2 { font-weight: 450; }
h1 em { font-style: normal; color: var(--accent); }
h2 { font-size: 36px; letter-spacing: -.035em; line-height: 1.2; }
.eyebrow { font: 11px/1.6 var(--font-mono); letter-spacing: .12em; margin-bottom: 14px; }
.signal-dot { display: inline-block; width: 6px; height: 6px; border-radius: 50%; background: var(--accent); margin-right: 10px; vertical-align: middle; }
.btn { font-size: 13px; }
.btn--lg { font-size: 13px; height: 52px; padding: 0 22px; }
.more { font-size: 13px; color: var(--text-2); }
.more:hover { color: var(--accent); }
.hero-actions { display: flex; align-items: center; flex-wrap: wrap; gap: 24px; }
.hero-actions .btn { gap: 30px; }
.section-heading { display: flex; justify-content: space-between; align-items: center; gap: 25px; margin-bottom: 32px; }
.section-heading h2 { margin-bottom: 0; }
.product-index { font: 11px/1.6 var(--font-mono); letter-spacing: .025em; color: var(--accent); }
.home-intro { display: grid; grid-template-columns: minmax(0, 1.25fr) minmax(0, 1fr); align-items: end; gap: 70px; padding: 62px 0 42px; }
.home-intro h1, .tax-intro h1 { font-size: clamp(60px, 6.1vw, 86px); line-height: 1.02; letter-spacing: -.058em; margin: 22px 0 0; text-wrap: initial; }
.home-intro .lede { max-width: 360px; font-size: 18px; line-height: 1.55; margin-bottom: 25px; }
.burn-frame { border: 1px solid var(--border); border-radius: var(--radius-lg); background: radial-gradient(ellipse at 53% 120%, var(--warm-wash), transparent 65%), var(--bg-2); overflow: hidden; }
.burn-heading { display: flex; align-items: start; justify-content: space-between; gap: 20px; padding: 29px 32px 0; }
.burn-heading .eyebrow { margin-bottom: 10px; }
.burn-total { font-size: 45px; line-height: 1.2; letter-spacing: -.045em; margin-bottom: 6px; }
.burn-unit { font-size: 21px; letter-spacing: -.02em; color: var(--accent); white-space: nowrap; }
.burn-heading .small { font-size: 12px; }
.burn-range { display: flex; gap: 5px; padding: 4px; border: 1px solid var(--border-2); border-radius: 6px; }
.burn-range button { font: 11px var(--font-mono); padding: 10px 13px; color: var(--text-3); border: 0; border-radius: 3px; background: transparent; cursor: pointer; min-height: 36px; }
.burn-range button[aria-pressed="true"] { background: var(--bg-3); color: var(--text); }
.burn-foot { display: flex; justify-content: space-between; flex-wrap: wrap; gap: 12px 20px; border-top: 1px solid var(--border); padding: 17px 32px; font: 11px/1.5 var(--font-mono); color: var(--text-2); }
.burn-source { font-size: 11px; line-height: 1.6; color: var(--text-3); margin: 12px 0; }
.burn-mark.is-selected { stroke: var(--text); stroke-width: 1.5; }
.burn-hit:focus-visible { outline: none; stroke: var(--focus); stroke-width: 1; }
.burn-showcase .viz-ax { font: 10px var(--font-mono); }
.burn-showcase .viz-table summary { font-size: 12px; padding: 5px 0; }
.burn-showcase .viz-table .scroll { max-height: 300px; overflow: auto; }
.burn-showcase .viz-table th { position: sticky; top: 0; background: var(--bg); }
.burn-noscript { padding: 35px 32px; }
.burn-unavailable { padding: 36px; border: 1px solid var(--border); border-radius: var(--radius-lg); }
.home-stats { display: grid; grid-template-columns: repeat(3,minmax(0,1fr)); gap: 25px; padding: 34px 0 38px; border-bottom: 1px solid var(--border); }
.home-stats strong { display: block; font-size: 23px; font-weight: 450; letter-spacing: -.02em; margin-bottom: 4px; }
.home-stats span { display: block; font-size: 12px; color: var(--text-3); }
.home-products { padding-top: 64px; padding-bottom: 24px; }
.prods { gap: 36px; }
.prod { padding: 22px 0 0; background: transparent; border: 0; border-top: 1px solid var(--border); border-radius: 0; gap: 0; }
.prod h3 { font-size: 21px; font-weight: 500; margin: 17px 0 8px; }
.prod p { font-size: 14px; line-height: 1.6; max-width: 310px; color: var(--text-3); margin-bottom: 20px; }
.product-price { font-size: 15px; margin: 0 0 24px; }
.product-price small { font-size: 12px; color: var(--text-3); }
.prod .acts { margin-top: auto; }
.prod .more { text-align: left; font-weight: 400; font-size: 13px; }
.prod .more span { color: var(--accent); margin-left: 10px; }
.signup-panel { border: 1px solid var(--border); border-radius: var(--radius-lg); background: var(--bg-2); padding: 28px; margin-top: 32px; }
.signup-panel:target, .signup-panel.show { grid-template-columns: minmax(0,1fr) minmax(0,1fr); align-items: center; gap: 30px; }
.signup-panel .check-in .btn { width: auto; }
.signup-panel h3 { margin-bottom: 6px; }
.signup-panel .small { font-size: 12px; }
.tax-intro { padding-top: 64px; }
.tax-intro .hero { grid-template-columns: minmax(0,1.05fr) minmax(0,.95fr); gap: 64px; align-items: center; }
.tax-intro h1 { margin-bottom: 26px; font-size: clamp(52px,5.05vw,72px); }
.tax-intro .lede { font-size: 18px; max-width: 390px; margin-bottom: 29px; }
.tax-intro .check { gap: 8px; }
.tax-intro .check .lab { font-size: 12px; margin: 0; }
.tax-intro .check .small { font-size: 11px; }
.tax-intro .field { font-size: 14px; }
.tax-see-packs { display: inline-block; padding-top: 24px; }
.tax-statement { background: radial-gradient(ellipse at 100% 0%, var(--warm-wash), transparent 65%),var(--bg-2); border: 1px solid var(--border); border-radius: var(--radius-lg); padding: 28px; }
.statement-title { display: flex; align-items: center; justify-content: space-between; padding-bottom: 24px; }
.statement-title .eyebrow { margin: 0; }
.statement-icon { font-family: var(--font-tau); font-size: 38px; color: var(--accent); line-height: 1; }
.tax-statement .card { border: none; border-radius: 0; padding: 0; background: transparent; }
.tax-statement .card-head { justify-content: space-between; gap: 12px; margin-bottom: 24px; }
.tax-statement .badge { font-size: 11px; font-weight: 400; padding: 0 9px; border: 1px solid var(--border); }
.tax-statement .cap { font-size: 11px; }
.tax-statement .kv { gap: 20px; padding: 14px 0; }
.tax-statement .kv dt { font-size: 12px; }
.tax-statement .kv dt b { font-size: 13px; }
.tax-statement .kv dd { font: 14px var(--font-mono); }
.tax-statement .kv.key { flex-direction: column; gap: 12px; padding: 23px 0 14px; border-top-width: 1px; }
.tax-statement .kv.key dd { font: 450 48px/1.1 var(--font-body); letter-spacing: -.04em; color: var(--accent); }
.tax-statement .note { font-size: 11px; line-height: 1.6; }
.tax-steps { display: grid; grid-template-columns: repeat(3,minmax(0,1fr)); gap: 40px; padding: 48px 0 40px; margin-top: 35px; border-bottom: 1px solid var(--border); }
.tax-steps h3 { font-size: 18px; font-weight: 450; margin: 12px 0 5px; }
.tax-steps p { font-size: 13px; color: var(--text-3); }
.tax-page .packs { gap: 22px; }
.pack { padding: 27px; gap: 16px; }
.pack h3 { font-size: 22px; font-weight: 500; }
.pack .price { font-size: 39px; font-weight: 450; letter-spacing: -.04em; margin: 3px 0 6px; }
.pack .price small { font-size: 12px; margin-top: 8px; }
.pack .price s { font-size: 19px; }
.pack p { font-size: 14px; flex-grow: 0; }
.pack.hi { border-color: var(--accent); background: linear-gradient(160deg,var(--warm-wash),transparent 55%),var(--bg-2); }
.pack-features { font-size: 12px; line-height: 1.6; color: var(--text-2); margin: 3px 0 14px; flex-grow: 1; }
.pack-features li { padding: 8px 0; border-bottom: 1px solid var(--border); }
.pack-us { font-size: 12px; text-align: center; padding: 4px; }
.tfoot { font-size: 12px; justify-content: center; gap: 12px 30px; }
.order { padding: 32px; max-width: 620px; margin: 32px auto 0; }
.order h3 { font-size: 25px; font-weight: 450; }
.order .eyebrow { margin: 0; }
select.field { appearance: auto; padding-right: 12px; }
.tax-method { display: grid; grid-template-columns: minmax(0,1fr) minmax(0,1fr); gap: 64px; align-items: center; border-bottom: 1px solid var(--border); padding-bottom: 60px; }
.tax-method h2 { margin-bottom: 24px; }
.tax-method .sub { font-size: 19px; margin-bottom: 16px; }
.tax-method .small { font-size: 14px; line-height: 1.7; }
.tax-faq { max-width: 830px; }
.tax-faq h2 { margin-bottom: 30px; }
.tax-faq details { border-top: 1px solid var(--border); }
.tax-faq details:last-child { border-bottom: 1px solid var(--border); }
.tax-faq summary { cursor: pointer; font-size: 16px; padding: 20px 0; }
.tax-faq details p { font-size: 14px; color: var(--text-2); padding: 0 0 24px; max-width: 70ch; }
.tax-closing { display: flex; justify-content: space-between; align-items: center; gap: 25px; padding: 30px 0; border-top: 1px solid var(--border); }
.tax-page .sec.last { padding-bottom: 12px; }
.tax-page .fine { font-size: 12px; }
.foot { font-size: 12px; padding: 26px 0 32px; gap: 12px 24px; }
.prose { padding-bottom: 12px; overflow-wrap: anywhere; }
.prose h1 { font-weight: 450; font-size: 52px; letter-spacing: -.035em; }
.prose h2 { font-size: 30px; font-weight: 450; }
@media (max-width: 1100px) {
  .wrap { padding: 0 32px; }
  .nav { gap: 18px; }
  .home-intro { gap: 40px; }
  .tax-intro .hero { gap: 32px; }
  .tax-intro .check-in { flex-direction: column; }
  .pack { padding: 22px; }
  .pack .btn { font-size: 12px; padding: 0 10px; white-space: normal; text-align: center; line-height: 1.4; }
}
@media (min-width: 701px) and (max-width: 899px) {
  .prods { grid-template-columns: repeat(3,minmax(0,1fr)); gap: 24px; }
  .tax-page .packs { grid-template-columns: 1fr; }
  .tax-intro .hero { grid-template-columns: 1fr 1fr; }
  .tax-intro h1 { font-size: 55px; }
  .tax-statement { padding: 22px; }
}
@media (max-width: 700px) {
  .wrap { padding: 0 22px; }
  .mast { height: auto; min-height: 78px; gap: 14px; padding: 20px 0 12px; }
  .wm { font-size: 24px; }
  .mast-r { width: auto; flex: 1 0 100%; gap: 12px; }
  .nav { flex: 1; justify-content: space-between; gap: 12px; font-size: 12px; }
  .nav a:last-child { padding: 8px 10px; font-size: 11px; }
  .theme { width: 40px; height: 40px; flex-shrink: 0; }
  .home-intro { grid-template-columns: 1fr; gap: 25px; padding: 38px 0 30px; }
  .home-intro h1 { font-size: 66px; letter-spacing: -.06em; margin-top: 18px; }
  .home-intro .lede { font-size: 16px; max-width: 340px; margin-bottom: 21px; }
  .hero-actions { gap: 20px; }
  .hero-actions .btn { gap: 20px; padding: 0 17px; height: 48px; }
  .hero-actions .more { font-size: 12px; }
  .eyebrow { font-size: 10px; letter-spacing: .1em; }
  h2 { font-size: 31px; }
  .burn-heading { padding: 23px 18px 0; flex-wrap: wrap; }
  .burn-total { font-size: 39px; }
  .burn-unit { font-size: 19px; }
  .burn-foot { padding: 15px 18px; font-size: 10px; flex-direction: column; gap: 9px; }
  .burn-range button { min-height: 40px; }
  .home-stats { padding: 25px 0; gap: 17px; }
  .home-stats strong { font-size: 20px; }
  .home-stats span { font-size: 11px; line-height: 1.5; }
  .home-products { padding-top: 40px; }
  .section-heading { margin-bottom: 26px; }
  .section-heading > .more { display: none; }
  .prods { gap: 28px; }
  .prod p { max-width: none; margin-bottom: 16px; }
  .product-price { margin-bottom: 16px; }
  .signup-panel { padding: 22px; }
  .signup-panel:target, .signup-panel.show { grid-template-columns: 1fr; gap: 20px; }
  .tax-intro { padding-top: 38px; }
  .tax-intro .hero { grid-template-columns: 1fr; gap: 34px; }
  .tax-intro h1 { font-size: clamp(46px,13.4vw,60px); margin-top: 18px; margin-bottom: 23px; }
  .tax-intro .lede { font-size: 16px; max-width: 350px; }
  .tax-statement { padding: 24px; }
  .tax-statement .kv.key dd { font-size: 44px; }
  .tax-steps { grid-template-columns: 1fr; gap: 26px; padding: 28px 0 32px; margin-top: 16px; }
  .tax-steps h3 { margin-top: 6px; }
  .tax-page .packs { grid-template-columns: 1fr; gap: 20px; }
  .pack { padding: 26px; }
  .pack .btn { font-size: 13px; }
  .tfoot { justify-content: start; gap: 8px 22px; }
  .tax-method { grid-template-columns: 1fr; gap: 25px; padding-bottom: 40px; }
  .tax-method h2 { margin-bottom: 18px; }
  .tax-closing { align-items: start; flex-direction: column; gap: 20px; }
  .order { padding: 24px; }
  .prose h1 { font-size: 36px; }
  .foot { margin-top: 48px; font-size: 11px; gap: 12px 18px; }
}
@media (max-width: 370px) {
  .wrap { padding: 0 16px; }
  .nav { gap: 9px; font-size: 11px; }
  .nav a:last-child { font-size: 10px; padding: 8px; }
  .home-intro h1 { font-size: 60px; }
  .burn-total { font-size: 34px; }
  .tax-statement { padding: 18px; }
}

/* Fire stays inside the data height; only its sway, core and glow move. */
.burn-tongue { animation: burn-sway var(--burn-duration) ease-in-out var(--burn-delay) infinite; }
.burn-core { opacity: .3; animation: burn-core calc(var(--burn-duration) * .73) ease-in-out var(--burn-delay) infinite; pointer-events: none; }
.burn-haze { opacity: .2; animation: burn-glow 4.7s ease-in-out infinite; pointer-events: none; }
@keyframes burn-sway {
  0%, 100% { transform: skewX(0deg); }
  22% { transform: skewX(var(--sway)); }
  48% { transform: skewX(calc(var(--sway) * -.65)); }
  73% { transform: skewX(calc(var(--sway) * .4)); }
}
@keyframes burn-core {
  0%, 100% { transform: scale(.34, .72); opacity: .22; }
  32% { transform: scale(.43, .82); opacity: .48; }
  61% { transform: scale(.3, .66); opacity: .28; }
  83% { transform: scale(.39, .77); opacity: .4; }
}
@keyframes burn-glow { 0%, 100% { opacity: .13; } 45% { opacity: .26; } 72% { opacity: .18; } }
.burn-paused .burn-tongue, .burn-paused .burn-core, .burn-paused .burn-haze { animation-play-state: paused; }
@media (prefers-reduced-motion: reduce) {
  .burn-tongue, .burn-core, .burn-haze { animation: none !important; }
  .burn-core { transform: scale(.34, .72); opacity: .22; }
}

/* Offers as product windows, followed by an actual archived report. */
.home-products .prods { gap: 20px; align-items: stretch; }
.home-products .prod { padding: 25px; border: 1px solid var(--border); border-radius: var(--radius-lg); background: var(--bg-2); overflow: hidden; transition: border-color .2s, transform .2s; }
.home-products .prod:hover { border-color: var(--border-2); transform: translateY(-3px); }
.home-products .prod-weekly { background: linear-gradient(145deg,var(--warm-wash),transparent 65%),var(--bg-2); border-color: var(--border-2); }
.home-products .prod h3 { margin: 24px 0 12px; font-size: 23px; letter-spacing: -.025em; }
.home-products .prod p { flex-grow: 1; max-width: none; margin-bottom: 24px; }
.home-products .product-price { font-size: 25px; letter-spacing: -.035em; margin-bottom: 25px; }
.home-products .product-price small { letter-spacing: 0; }
.home-products .prod .acts { gap: 13px; }
.home-products .prod .btn { justify-content: space-between; padding: 0 15px; }
.home-products .prod .more, .product-detail { text-align: center; font-size: 11px; line-height: 20px; color: var(--text-3); }
.product-preview { margin-top: 25px; height: 185px; border: 1px solid var(--border); border-radius: 6px; background: var(--bg); overflow: hidden; }
.weekly-preview { padding: 17px 20px 0; background: radial-gradient(ellipse at bottom,var(--warm-wash),transparent),var(--bg); }
.mini-paper { border: 1px solid var(--border-2); background: var(--bg-2); padding: 16px; border-radius: 3px 3px 0 0; transform: rotate(-4deg) translateY(4px); }
.mini-mast { display: flex; justify-content: space-between; gap: 12px; font: 9px/1.5 var(--font-mono); color: var(--text-3); }
.mini-mast i { font-style: normal; color: var(--accent); white-space: nowrap; }
.mini-paper strong { display: block; font-size: 27px; letter-spacing: -.04em; font-weight: 450; line-height: 1.05; padding: 13px 0; }
.mini-topics { display: grid; gap: 5px; font-size: 10px; color: var(--text-3); }
.feed-preview { padding: 18px; }
.feed-mini-row { margin-top: 12px; }
.feed-mini-row > div:first-child { display: flex; justify-content: space-between; gap: 10px; font-size: 10px; }
.feed-mini-row span { overflow: hidden; white-space: nowrap; text-overflow: ellipsis; }
.feed-mini-row b { font: 10px var(--font-mono); white-space: nowrap; font-weight: 400; }
.feed-mini-track { height: 4px; margin-top: 5px; background: var(--bg-3); border-radius: 3px; }
.feed-mini-track i { display: block; height: 100%; background: var(--accent); border-radius: 3px; }
.feed-mini-note { display: block; margin-top: 12px; color: var(--text-3); font-size: 9px; }
.feed-empty { display: grid; gap: 20px; }
.feed-empty strong { font-size: 23px; font-weight: 450; line-height: 1.2; }
.feed-empty > span:last-child { font-size: 10px; color: var(--text-3); }
.tax-preview { padding: 20px 16px; }
.mini-ledger > div { display: flex; justify-content: space-between; padding: 13px 0; border-bottom: 1px solid var(--border); font-size: 11px; }
.mini-ledger .mini-mast { margin-bottom: 6px; }
.mini-ledger b { color: var(--accent); font: 10px var(--font-mono); }
.report-showcase { margin-top: 64px; padding: 48px; display: grid; grid-template-columns: minmax(0,.9fr) minmax(0,1.1fr); align-items: center; gap: 64px; border: 1px solid var(--border); border-radius: var(--radius-lg); background: radial-gradient(ellipse at 90% 90%,var(--warm-wash),transparent 70%),var(--bg-2); }
.report-copy h2 { font-size: 48px; line-height: 1.06; letter-spacing: -.045em; margin: 20px 0; }
.report-copy h2 em { font-style: normal; color: var(--accent); }
.report-copy p { font-size: 15px; line-height: 1.7; color: var(--text-2); max-width: 35ch; }
.report-facts { display: flex; flex-wrap: wrap; gap: 10px 20px; font: 10px/1.5 var(--font-mono); margin: 24px 0; color: var(--text-3); }
.report-copy .btn { gap: 30px; }
.report-free { display: block; font-size: 11px; color: var(--text-3); margin-top: 14px; }
.report-paper { display: block; background: var(--report-paper); color: var(--report-ink); border-radius: 4px; padding: 27px; transform: rotate(2deg); box-shadow: 0 18px 40px rgba(0,0,0,.16); transition: transform .2s; }
.report-paper:hover { color: var(--report-ink); transform: rotate(0deg); }
.report-mast { display: flex; align-items: center; justify-content: space-between; gap: 12px; padding-bottom: 15px; border-bottom: 1px solid var(--report-muted); }
.report-mast > span:first-child { font: 17px var(--font-wordmark); letter-spacing: -.03em; }
.report-mast > span:last-child, .report-kicker { font: 8px var(--font-mono); color: var(--report-muted); }
.report-kicker { display: block; margin-top: 24px; letter-spacing: .12em; }
.report-paper h3 { font: 500 44px/1.02 var(--font-wordmark); letter-spacing: -.045em; margin: 12px 0; }
.report-paper p { font-size: 12px; line-height: 1.5; max-width: 29ch; color: var(--report-muted); }
.report-paper svg { display: block; width: 100%; height: auto; margin: 26px 0 12px; }
.report-paper svg text { font: 10px var(--font-mono); fill: var(--report-muted); }
.report-grid { fill: none; stroke: var(--report-muted); stroke-opacity: .25; stroke-width: 1; }
.report-area { fill: var(--report-accent); fill-opacity: .08; }
.report-line { fill: none; stroke: var(--report-accent); stroke-width: 2.5; stroke-linejoin: round; }
.report-dot { fill: var(--report-accent); }
.report-bottom { display: flex; justify-content: space-between; gap: 10px; border-top: 1px solid var(--report-muted); padding-top: 13px; font: 8px var(--font-mono); }
@media (max-width: 1100px) { .home-products .prod { padding: 20px; } .report-showcase { gap: 36px; padding: 34px; } .report-copy h2 { font-size: 40px; } .report-mast { flex-wrap: wrap; } }
@media (min-width: 701px) and (max-width: 899px) { .home-products .prods { grid-template-columns: 1fr; } .product-preview { height: 190px; } .weekly-preview { padding: 16px 70px 0; } }
@media (max-width: 700px) {
  .home-products .prod { padding: 25px; }
  .home-products .prod:hover { transform: none; }
  .product-preview { height: 185px; }
  .report-showcase { grid-template-columns: 1fr; margin-top: 36px; padding: 25px; gap: 34px; }
  .report-copy h2 { font-size: 38px; }
  .report-paper { padding: 20px; transform: rotate(1deg); }
  .report-paper h3 { font-size: 36px; }
  .report-mast > span:first-child { font-size: 16px; }
  .report-paper p { font-size: 11px; }
  .report-facts { font-size: 9px; }
}

/* Developer feature alongside the publication and tax offers. */
.home-api { display: grid; grid-template-columns: minmax(0,1fr) minmax(0,1.1fr); gap: 48px; margin-top: 24px; padding: 36px; border: 1px solid var(--border-2); border-radius: var(--radius-lg); background: linear-gradient(125deg,var(--warm-wash),transparent 55%),var(--bg-2); }
.home-api h2 { font-size: clamp(34px,3.5vw,46px); line-height: 1.08; letter-spacing: -.04em; margin: 18px 0; }
.home-api-copy p { max-width: 390px; font-size: 15px; color: var(--text-2); margin-bottom: 26px; }
.home-api .hero-actions { gap: 18px; }
.home-api-panel { min-width: 0; align-self: center; }
.home-api-sample { padding: 22px; border: 1px solid var(--border); border-radius: var(--radius); background: var(--bg); }
.home-api-sample .eyebrow { display: block; margin-bottom: 18px; color: var(--text-3); }
.home-api-sample pre { margin: 0 0 18px; white-space: pre-wrap; overflow-wrap: anywhere; padding-bottom: 4px; font: 12px/1.8 var(--font-mono); color: var(--text); }
.home-api-plan { display: grid; grid-template-columns: repeat(3,minmax(0,1fr)); gap: 16px; margin: 24px 0 16px; }
.home-api-plan dt { font: 10px/1.6 var(--font-mono); color: var(--text-3); }
.home-api-plan dd { margin: 6px 0 0; font: 24px/1.2 var(--font-body); letter-spacing: -.025em; }
.home-api-plan dd small { font-size: 12px; color: var(--text-3); }
.home-api .home-api-note { margin: 0; font-size: 11px; color: var(--text-3); }
@media (max-width: 899px) { .home-api { grid-template-columns: minmax(0,1fr); gap: 30px; padding: 28px; } .home-api-copy p { max-width: 540px; } }
@media (max-width: 480px) { .home-api { padding: 22px; } .home-api-sample { padding: 18px; } .home-api-plan { gap: 10px; } .home-api-plan dd { font-size: 21px; } }

/* Quiet evidence cards bridge the flame showcase and the product offers. */
.home-stats { gap: 20px; padding: 26px 0 0; border-bottom: none; }
.home-stats .metric-card { position: relative; padding: 23px 25px; border: 1px solid var(--border); border-radius: var(--radius-lg); background: var(--bg-2); overflow: hidden; }
.metric-label { display: flex; align-items: center; justify-content: space-between; gap: 12px; margin-bottom: 19px; }
.home-stats .metric-label span { font: 10px var(--font-mono); letter-spacing: .06em; text-transform: uppercase; color: var(--text-3); }
.metric-label svg { width: 20px; height: 20px; stroke: var(--accent); fill: none; stroke-width: 1.4; stroke-linecap: round; stroke-linejoin: round; }
.home-stats strong { font-size: 36px; letter-spacing: -.04em; line-height: 1.1; margin-bottom: 12px; }
.home-stats .metric-check { display: inline; color: var(--accent); margin-left: 12px; font-size: 25px; }
.home-stats .metric-card > span { font-size: 12px; }
.metric-rule { width: 34px; height: 2px; background: var(--accent); opacity: .7; margin-top: 20px; }
.metric-source { display: inline-block; font-size: 11px; color: var(--accent); margin-top: 13px; }
@media (max-width: 899px) { .home-stats .metric-card { padding: 19px; } .home-stats strong { font-size: 29px; } }
@media (max-width: 700px) {
  .home-stats { grid-template-columns: repeat(2,minmax(0,1fr)); gap: 12px; padding-top: 22px; }
  .home-stats .metric-card { padding: 18px; }
  .home-stats .metric-card:last-child { grid-column: 1 / -1; }
  .home-stats .metric-card > span { font-size: 11px; }
  .home-stats .metric-label span { font-size: 9px; letter-spacing: 0; }
  .metric-label { gap: 8px; }
  .metric-label svg { width: 18px; height: 18px; flex-shrink: 0; }
  .home-stats strong { font-size: 30px; }
  .home-stats .metric-card:last-child .metric-label { margin-bottom: 12px; }
}

/* checkout: the agreement that makes the tax pack terms part of the contract */
.agree { display: flex; gap: 10px; align-items: flex-start; font-size: 13px; line-height: 1.45; color: var(--text-2); margin: 4px 0 2px; }
.agree input { margin-top: 3px; flex: none; accent-color: var(--accent); }
.agree a { color: var(--text); }