/* CuentaNeta: base "herramienta precisa" (propuesta C) con el tono de la propuesta B.
   Sin recursos externos: fuentes del sistema. Contrastes calculados en scripts/contrast.mjs. */
:root {
  --bg: #f4f4f1; --panel: #ffffff; --ink: #121417; --muted: #555b63; --line: #d6d6d0; --grid: #e9e9e4; --tick: #c9c9c2;
  --acc: #00704a; --acc-ink: #ffffff; --acc-soft: #e3f2eb;
  --neg: #a3341f; --link: #0b55a8; --focus: #0057d9;
  --seg-net: #00704a; --seg-quota: #b0431b; --seg-irpf: #7a3b52; --seg-exp: #6b7280;
  --warn: #6b4200; --warn-bg: #fff4dc; --warn-line: #b7791f;
  --say-bg: #f3efe6;
  --sans: system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  --mono: ui-monospace, "SF Mono", SFMono-Regular, "Cascadia Mono", "Segoe UI Mono", Menlo, Consolas, monospace;
  color-scheme: light dark;
}
@media (prefers-color-scheme: dark) {
  :root {
    --bg: #0d0e10; --panel: #16181b; --ink: #ececea; --muted: #a2a7ae; --line: #2b2e33; --grid: #23262b; --tick: #3a3e45;
    --acc: #3ddc97; --acc-ink: #04140d; --acc-soft: #10261c;
    --neg: #ff8a73; --link: #8ec5ff; --focus: #6aa8ff;
    --seg-net: #3ddc97; --seg-quota: #f08a5d; --seg-irpf: #d892ad; --seg-exp: #9ca3af;
    --warn: #f2c879; --warn-bg: #2b2414; --warn-line: #a67c2e;
    --say-bg: #211d16;
  }
}
* { box-sizing: border-box; }
[hidden] { display: none !important; }
html { -webkit-text-size-adjust: 100%; }
body { margin: 0; background: var(--bg); color: var(--ink); font: 1.0625rem/1.6 var(--sans); }
a { color: var(--link); text-underline-offset: 3px; text-decoration-thickness: 1px; }
a:hover { text-decoration-thickness: 2px; }
:focus-visible { outline: 3px solid var(--focus); outline-offset: 2px; }
.skip { position: absolute; left: -999px; top: .5rem; background: var(--panel); color: var(--ink); padding: .7rem 1rem; z-index: 10; border: 2px solid var(--focus); }
.skip:focus { left: .5rem; }
.num, .mono, code { font-family: var(--mono); font-variant-numeric: tabular-nums slashed-zero; }
.wrap { max-width: 72rem; margin: 0 auto; padding: 0 1rem; }
.prose { max-width: 46rem; }

/* ---------- Cabecera ---------- */
header.site { background: var(--panel); border-bottom: 1px solid var(--line); }
header.site .wrap { display: flex; flex-wrap: wrap; align-items: center; gap: 0 1rem; min-height: 56px; }
.brand { display: inline-flex; align-items: center; gap: .55rem; min-height: 48px; color: var(--ink); text-decoration: none; font-weight: 700; font-size: 1.15rem; letter-spacing: -.02em; }
.brand svg { flex: none; }
.brand .logo-a { fill: var(--panel); } .brand .logo-b { fill: var(--acc); }
.ver { font-family: var(--mono); font-size: .75rem; color: var(--muted); border: 1px solid var(--line); border-radius: 4px; padding: .1rem .4rem; display: none; }
@media (min-width: 52rem) { .ver { display: inline-block; } }
header.site nav { width: calc(100% + 2rem); margin: 0 -1rem; padding: 0 .5rem; border-top: 1px solid var(--line); }
header.site nav ul { list-style: none; margin: 0; padding: 0; display: flex; flex-wrap: wrap; }
header.site nav a { display: inline-flex; align-items: center; min-height: 44px; padding: 0 .55rem; white-space: nowrap; color: var(--muted); text-decoration: none; font-size: .95rem; }
header.site nav a:hover { color: var(--ink); }
header.site nav a[aria-current="page"] { color: var(--ink); font-weight: 600; box-shadow: inset 0 -3px 0 var(--acc); }
@media (min-width: 52rem) {
  header.site nav { width: auto; margin: 0 0 0 auto; padding: 0; border-top: 0; overflow: visible; }
}

/* ---------- Tipografía y contenido ---------- */
main { padding: 1.25rem 0 3rem; }
.crumb { font-family: var(--mono); font-size: .8rem; color: var(--muted); margin: 0 0 .35rem; }
h1 { font-size: clamp(1.6rem, 5.5vw, 2.3rem); line-height: 1.15; letter-spacing: -.025em; margin: .2rem 0 .6rem; }
h2 { font-size: 1.35rem; line-height: 1.3; letter-spacing: -.01em; margin: 2.25rem 0 .6rem; }
h3 { font-size: 1.1rem; line-height: 1.35; margin: 1.4rem 0 .3rem; }
p, ul, ol { margin: .7rem 0; }
li { margin: .3rem 0; }
.prose p, .prose li { max-width: 68ch; }
.lead { color: var(--muted); font-size: 1.1rem; max-width: 62ch; }
.meta { color: var(--muted); font-size: .9rem; }
.notice { background: var(--warn-bg); color: var(--warn); border-left: 4px solid var(--warn-line); border-radius: 0 6px 6px 0; padding: .7rem 1rem; font-size: .95rem; margin: 1rem 0; }
.notice a { color: inherit; }
.say { background: var(--say-bg); border-radius: 8px; padding: .8rem 1rem; margin: 1rem 0 0; font-size: .97rem; }
.source { font-size: .92rem; color: var(--muted); background: var(--panel); border: 1px solid var(--line); border-left: 4px solid var(--ink); border-radius: 6px; margin-top: 2rem; padding: .3rem 1rem .5rem; }
.source strong:first-child { color: var(--ink); }
.source a { color: var(--link); }
.source ul { padding-left: 1.1rem; }
.related { font-size: .97rem; }
.related ul { padding-left: 1.1rem; }
.related li { margin: .15rem 0; }
.related a { display: inline-block; padding: .35rem 0; }
pre { background: var(--panel); border: 1px solid var(--line); border-radius: 6px; padding: .8rem 1rem; overflow-x: auto; font-size: .85rem; line-height: 1.5; }
code { font-size: .9em; }

/* ---------- Paneles ---------- */
.panel, .card { background: var(--panel); border: 1px solid var(--line); border-radius: 6px; }
.card { padding: 1rem; margin: 1rem 0; }
.ph { display: flex; justify-content: space-between; align-items: center; gap: .5rem; padding: .6rem 1rem; border-bottom: 1px solid var(--line); font-size: .78rem; text-transform: uppercase; letter-spacing: .08em; color: var(--muted); font-weight: 600; margin: 0; }
.pb { padding: 1rem; }
.app { display: grid; gap: 1rem; margin-top: 1rem; }
@media (min-width: 60rem) { .app { grid-template-columns: 23rem 1fr; align-items: start; } }

/* ---------- Formulario ---------- */
.tabs { display: grid; grid-template-columns: 1fr 1fr; border: 1px solid var(--line); border-radius: 6px; overflow: hidden; margin-bottom: 1rem; }
.tabs a { display: flex; align-items: center; justify-content: center; min-height: 44px; text-decoration: none; color: var(--muted); font-size: .95rem; font-weight: 600; }
.tabs a[aria-current="page"] { background: var(--ink); color: var(--panel); }
.f { margin-bottom: .9rem; }
.f > label, .lbl { display: block; font-size: .95rem; font-weight: 600; margin-bottom: .3rem; }
.hint { display: block; font-weight: 400; color: var(--muted); font-size: .86rem; line-height: 1.45; }
.box { display: flex; border: 1px solid var(--muted); border-radius: 6px; background: var(--bg); }
.box:focus-within { outline: 3px solid var(--focus); outline-offset: 1px; }
.box input, .box select { flex: 1; min-width: 0; border: 0; background: transparent; color: var(--ink); font-family: var(--mono); font-size: 1.1rem; padding: .6rem .75rem; min-height: 48px; text-align: right; font-variant-numeric: tabular-nums; }
.box select { text-align: left; font-family: var(--sans); font-size: 1rem; }
.box option { background: var(--panel); color: var(--ink); }
.box input:focus, .box select:focus { outline: none; }
.box .u { display: flex; align-items: center; padding: 0 .75rem; font-family: var(--mono); color: var(--muted); border-left: 1px solid var(--line); }
.row2 { display: grid; grid-template-columns: 1fr; gap: 0 .75rem; align-items: end; }
@media (min-width: 26rem) { .row2 { grid-template-columns: 1fr 1fr; } }
@media (min-width: 60rem) { .app .row2 { grid-template-columns: 1fr; } } /* el formulario es una columna estrecha */
.check { display: flex; gap: .6rem; align-items: flex-start; margin: .5rem 0 .9rem; font-size: .95rem; }
.check input { flex: none; width: 1.4rem; height: 1.4rem; margin: .15rem 0 0; accent-color: var(--acc); }
.check label { font-weight: 400; }
details { border: 1px solid var(--line); border-radius: 6px; background: var(--panel); margin: .6rem 0 1rem; }
details > summary { cursor: pointer; font-weight: 600; min-height: 44px; display: flex; align-items: center; padding: .4rem .9rem; }
details > .dbody { padding: 0 .9rem .6rem; }
button, .btn { font: inherit; cursor: pointer; min-height: 48px; padding: .6rem 1.2rem; border-radius: 6px; border: 2px solid var(--acc); background: var(--acc); color: var(--acc-ink); font-weight: 700; text-decoration: none; display: inline-flex; align-items: center; justify-content: center; }
button:hover, .btn:hover { filter: brightness(1.08); }
button.wide { width: 100%; }
button.secondary, .btn.secondary { background: transparent; color: var(--ink); border-color: var(--muted); font-weight: 600; }
.small { font-size: .86rem; color: var(--muted); margin: .7rem 0 0; }
.actions { display: flex; flex-wrap: wrap; gap: .6rem; padding: 0 1rem 1rem; }

/* ---------- Resultado ---------- */
.result { min-height: 12rem; }
.result:focus { outline: none; }
.result:focus-visible { outline: 3px solid var(--focus); }
.empty { padding: 1.25rem 1rem; color: var(--muted); }
.hero { padding: 1.1rem 1rem 1rem; border-bottom: 1px solid var(--line); }
.hero .k { font-size: .95rem; color: var(--muted); margin: 0; }
.hero .v { font-family: var(--mono); font-variant-numeric: tabular-nums; font-size: clamp(2.4rem, 11vw, 4rem); font-weight: 700; letter-spacing: -.04em; line-height: 1.05; margin: .25rem 0 .5rem; color: var(--acc); }
.hero .v .unit { font-size: .42em; color: var(--muted); letter-spacing: 0; font-weight: 500; }
.eq { display: flex; flex-wrap: wrap; align-items: flex-end; gap: .35rem .6rem; margin: 0; padding: 0; list-style: none; font-family: var(--mono); font-variant-numeric: tabular-nums; }
.eq li { display: flex; flex-direction: column; margin: 0; }
.eq .t { font-size: 1rem; font-weight: 600; color: var(--ink); white-space: nowrap; }
.eq .t.m { color: var(--neg); }
.eq .t.r { color: var(--acc); }
.eq .l { font-family: var(--sans); font-size: .75rem; color: var(--muted); }
.eq .op { font-size: 1rem; color: var(--muted); padding-bottom: 1.15rem; }
.eq-note { font-size: .8rem; color: var(--muted); margin: .4rem 0 0; }
.share { padding: 1rem; border-bottom: 1px solid var(--line); }
.share-txt { margin: 0; font-size: 1.1rem; }
.share-txt strong { font-family: var(--mono); font-variant-numeric: tabular-nums; color: var(--acc); }
.bar { display: flex; height: 22px; border-radius: 4px; overflow: hidden; margin: .8rem 0 .7rem; background: var(--grid); gap: 2px; }
.bar i { display: block; height: 100%; min-width: 2px; transition: width .35s ease; }
.legend { list-style: none; margin: 0; padding: 0; display: grid; gap: .25rem; font-size: .93rem; }
.legend li { display: grid; grid-template-columns: auto 1fr auto auto; gap: .6rem; align-items: center; margin: 0; }
.legend .dot { width: .85rem; height: .85rem; border-radius: 2px; }
.legend .a, .legend .p { font-family: var(--mono); font-variant-numeric: tabular-nums; text-align: right; white-space: nowrap; }
.legend .p { color: var(--muted); font-size: .85rem; min-width: 5.5ch; }
.s-net { background: var(--seg-net); } .s-quota { background: var(--seg-quota); } .s-irpf { background: var(--seg-irpf); } .s-exp { background: var(--seg-exp); }
.kpis { display: grid; grid-template-columns: 1fr 1fr; border-bottom: 1px solid var(--line); }
@media (min-width: 40rem) { .kpis { grid-template-columns: repeat(4, 1fr); } }
.kpi { padding: .85rem 1rem; border-right: 1px solid var(--line); border-top: 1px solid var(--line); margin-top: -1px; }
.kpi:nth-child(2n) { border-right: 0; }
@media (min-width: 40rem) { .kpi:nth-child(2n) { border-right: 1px solid var(--line); } .kpi:last-child { border-right: 0; } }
.kpi .k { font-size: .78rem; text-transform: uppercase; letter-spacing: .05em; color: var(--muted); margin: 0; }
.kpi .v { font-family: var(--mono); font-variant-numeric: tabular-nums; font-size: 1.25rem; font-weight: 600; margin: .15rem 0 0; }
.kpi .s { font-size: .8rem; color: var(--muted); margin: 0; }
.scale { padding: 1rem; border-bottom: 1px solid var(--line); }
.scale .k { font-size: .88rem; color: var(--muted); margin: 0 0 .5rem; display: flex; justify-content: space-between; gap: .25rem .75rem; flex-wrap: wrap; }
.ticks, .tl { display: grid; grid-template-columns: repeat(15, 1fr); gap: 3px; }
.ticks i { display: block; height: 26px; background: var(--grid); border-radius: 2px; border: 1px solid var(--tick); }
.ticks i.r { background: var(--tick); }
.ticks i.on { background: var(--acc); border-color: var(--acc); }
.tl { font-family: var(--mono); font-size: .66rem; color: var(--muted); margin-top: .25rem; text-align: center; }
.tl .on { color: var(--ink); font-weight: 700; }
.block { padding: 0 1rem; }
.block h3 { font-size: .78rem; text-transform: uppercase; letter-spacing: .08em; color: var(--muted); margin: 1.1rem 0 .3rem; }
.result details { margin: 1rem; }
.result .notice, .result .say, .result .err, .result > p.para { margin-left: 1rem; margin-right: 1rem; }
.result .err { padding-top: 1rem; }
.foot { display: flex; flex-wrap: wrap; gap: .25rem 1rem; justify-content: space-between; align-items: center; padding: .4rem 1rem; border-top: 1px solid var(--line); font-size: .85rem; color: var(--muted); margin-top: 1rem; }
.foot a { display: inline-flex; min-height: 44px; align-items: center; }

/* ---------- Tablas y listas clave-valor ---------- */
table { width: 100%; border-collapse: collapse; font-size: .93rem; margin: .8rem 0; font-variant-numeric: tabular-nums; }
th, td { padding: .55rem .7rem; border-bottom: 1px solid var(--line); text-align: right; vertical-align: top; }
th:first-child, td:first-child { text-align: left; }
thead th { font-size: .74rem; text-transform: uppercase; letter-spacing: .05em; color: var(--muted); font-weight: 600; border-bottom: 2px solid var(--line); }
tbody th { font-weight: 400; }
td { font-family: var(--mono); font-size: .9rem; }
td.txt { font-family: var(--sans); }
tr.total th, tr.total td { font-weight: 700; border-top: 2px solid var(--line); }
caption { text-align: left; font-size: .78rem; text-transform: uppercase; letter-spacing: .08em; color: var(--muted); font-weight: 600; padding: .4rem 0; }
.tablewrap { overflow-x: auto; background: var(--panel); border: 1px solid var(--line); border-radius: 6px; margin: .8rem 0; }
.tablewrap table { margin: 0; }
dl.kv { display: grid; grid-template-columns: 1fr auto; gap: 0 1rem; margin: .4rem 0; }
dl.kv dt, dl.kv dd { padding: .4rem 0; border-bottom: 1px solid var(--grid); }
dl.kv dt { color: var(--muted); font-size: .93rem; }
dl.kv dd { margin: 0; text-align: right; font-family: var(--mono); font-variant-numeric: tabular-nums; white-space: nowrap; }
.err { color: #b42318; font-weight: 600; }
@media (prefers-color-scheme: dark) { .err { color: #ff9b8f; } }

/* ---------- Paneles laterales (verificación / productos) ---------- */
.side { display: grid; gap: 1rem; margin-top: 1rem; }
@media (min-width: 48rem) { .side { grid-template-columns: 1fr 1fr; } }
.trust { list-style: none; margin: 0; padding: 0; }
.trust li { display: grid; grid-template-columns: 4.2rem 1fr; gap: .6rem; padding: .7rem 1rem; border-top: 1px solid var(--line); font-size: .93rem; margin: 0; }
.trust li:first-child { border-top: 0; }
.ok { font-family: var(--mono); font-weight: 700; color: var(--acc); }
.link { display: flex; justify-content: space-between; align-items: center; gap: .75rem; min-height: 56px; padding: .75rem 1rem; border-top: 1px solid var(--line); text-decoration: none; color: var(--ink); }
.link:first-of-type { border-top: 0; }
.link:hover { background: var(--bg); }
.link small { display: block; color: var(--muted); font-size: .85rem; }
.link .ar { font-family: var(--mono); color: var(--muted); }

/* ---------- Pie ---------- */
footer.site { margin-top: 2rem; border-top: 1px solid var(--line); background: var(--panel); padding: 1.5rem 0 2rem; font-size: .9rem; color: var(--muted); }
footer.site .cols { display: grid; gap: 1rem 2rem; }
@media (min-width: 48rem) { footer.site .cols { grid-template-columns: repeat(3, 1fr); } }
footer.site h2 { font-size: .78rem; text-transform: uppercase; letter-spacing: .08em; margin: 0 0 .2rem; color: var(--ink); }
footer.site ul { list-style: none; margin: 0; padding: 0; }
footer.site li { margin: 0; }
footer.site a { color: var(--muted); display: inline-flex; align-items: center; min-height: 44px; }
footer.site a:hover { color: var(--ink); }
footer.site .fine { border-top: 1px solid var(--line); margin-top: 1rem; padding-top: .8rem; }
footer.site .fine a { min-height: 0; display: inline; color: var(--link); }

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { transition: none !important; animation: none !important; scroll-behavior: auto !important; }
}

@media print {
  header.site, footer.site, .actions, .related, .skip, form, .side, .no-print, .tabs { display: none !important; }
  body { background: #fff; color: #000; font-size: 11pt; }
  .panel, .card, .tablewrap, .source { border: 1px solid #999; background: #fff; }
  .hero .v, .share-txt strong, .eq .t, .eq .t.m, .eq .t.r { color: #000; }
  a { color: #000; }
  .bar i { print-color-adjust: exact; -webkit-print-color-adjust: exact; }
  .print-only { display: block !important; }
}
.print-only { display: none; }
/* Páginas de contenido: columna de lectura alineada con la cabecera */
.page > * { max-width: 46rem; }
.page > .tablewrap, .page > pre { max-width: 64rem; }