/* HerraLab · estilos */
@font-face {
  font-family: "Public Sans";
  src: url("fonts/public-sans.woff2") format("woff2");
  font-weight: 100 900;
  font-style: normal;
  font-display: swap;
}

:root {
  --paper: #f3f5f7;
  --surface: #ffffff;
  --ink: #142029;
  --ink-2: #2e3c47;
  --muted: #5a6875;
  --line: #d8dee4;
  --line-soft: #e8ecf0;
  --accent: #0a6b4e;
  --accent-strong: #075a41;
  --accent-soft: #e2f1ea;
  --warn: #8a5300;
  --warn-soft: #fbf1df;
  --radius-lg: 14px;
  --radius: 10px;
  --radius-sm: 6px;
  --wrap: 1120px;
  --measure: 68ch;
  --shadow: 0 1px 2px rgba(20, 32, 41, .06), 0 8px 24px -12px rgba(20, 32, 41, .18);
  --focus: 0 0 0 3px #ffffff, 0 0 0 5px #0a6b4e;
}

*, *::before, *::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; }
@media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } }
body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font: 400 1.0625rem/1.65 "Public Sans", system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  font-feature-settings: "tnum" 0;
}
img, svg { display: block; max-width: 100%; }
a { color: var(--accent); text-underline-offset: .18em; text-decoration-thickness: 1px; }
a:hover { color: var(--accent-strong); text-decoration-thickness: 2px; }
:focus-visible { outline: none; box-shadow: var(--focus); border-radius: 4px; }
.num, .ledger, .stat strong, table { font-variant-numeric: tabular-nums; }

.wrap { width: min(100% - 32px, var(--wrap)); margin-inline: auto; }
.skip { position: absolute; left: -9999px; }
.skip:focus { left: 16px; top: 12px; z-index: 10; background: var(--surface); padding: 8px 12px; }

/* ---------- Cabecera ---------- */
.site-header { background: var(--surface); border-bottom: 1px solid var(--line); }
.site-header .wrap { display: flex; align-items: center; justify-content: space-between; gap: 16px; min-height: 64px; }
.brand { display: inline-flex; align-items: center; gap: 10px; color: var(--ink); text-decoration: none; font-weight: 750; font-size: 1.2rem; letter-spacing: -.02em; }
.brand:hover { color: var(--ink); }
.brand svg { width: 28px; height: 28px; }
.nav { display: flex; gap: 4px; }
.nav a { color: var(--ink-2); text-decoration: none; font-weight: 550; font-size: .95rem; padding: 8px 12px; border-radius: var(--radius-sm); }
.nav a:hover, .nav a[aria-current="page"] { background: var(--paper); color: var(--ink); }
.menu { display: none; position: relative; }
.menu summary { list-style: none; cursor: pointer; font-weight: 600; font-size: .95rem; padding: 8px 12px; border: 1px solid var(--line); border-radius: var(--radius-sm); }
.menu summary::-webkit-details-marker { display: none; }
.menu[open] .menu-panel { display: grid; }
.menu-panel { display: none; position: absolute; right: 0; top: calc(100% + 8px); z-index: 20; min-width: 240px; background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius); box-shadow: var(--shadow); padding: 6px; }
.menu-panel a { color: var(--ink); text-decoration: none; padding: 10px 12px; border-radius: var(--radius-sm); }
.menu-panel a:hover { background: var(--paper); }
@media (max-width: 860px) { .nav { display: none; } .menu { display: block; } }

/* ---------- Cabecera de página ---------- */
.page-head { padding: 28px 0 8px; }
.crumbs { font-size: .875rem; color: var(--muted); margin: 0 0 10px; }
.crumbs a { color: var(--muted); }
.crumbs span[aria-hidden] { margin: 0 6px; }
h1, h2, h3 { line-height: 1.2; letter-spacing: -.015em; color: var(--ink); }
h1 { font-size: clamp(1.75rem, 1.2rem + 2.2vw, 2.6rem); font-weight: 800; margin: 0 0 10px; letter-spacing: -.025em; max-width: 24ch; }
.lead { font-size: 1.125rem; color: var(--ink-2); margin: 0 0 12px; max-width: 60ch; }
.updated { font-size: .875rem; color: var(--muted); margin: 0; display: flex; flex-wrap: wrap; gap: 4px 14px; }
.updated b { color: var(--ink-2); font-weight: 600; }

/* ---------- Herramienta ---------- */
.tool { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1fr); gap: 20px; margin: 20px 0 8px; align-items: start; }
@media (max-width: 900px) { .tool { grid-template-columns: 1fr; } }
.card { background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius-lg); }
.form-card { padding: 22px; }
.form-card h2 { font-size: 1.05rem; margin: 0 0 14px; }
.field { margin-bottom: 16px; }
.field:last-child { margin-bottom: 0; }
.field > label, .field > .label { display: block; font-weight: 600; font-size: .95rem; margin-bottom: 6px; color: var(--ink); }
.hint { display: block; font-size: .85rem; color: var(--muted); margin-top: 5px; line-height: 1.45; }
.row2 { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; margin-bottom: 16px; }
.row2 > .field { margin-bottom: 0; }
@media (max-width: 420px) { .row2 { grid-template-columns: 1fr; } }
input[type="number"], input[type="date"], input[type="text"], input[type="email"], select, textarea {
  width: 100%; font: inherit; font-size: 1rem; color: var(--ink); background: var(--surface);
  border: 1px solid #c4ccd4; border-radius: var(--radius-sm); padding: 10px 12px; min-height: 46px;
}
input:focus, select:focus, textarea:focus { outline: none; border-color: var(--accent); box-shadow: 0 0 0 3px var(--accent-soft); }
.money { position: relative; }
.money input { padding-right: 34px; font-variant-numeric: tabular-nums; }
.money::after { content: "€"; position: absolute; right: 12px; top: 50%; transform: translateY(-50%); color: var(--muted); pointer-events: none; }
.seg { display: flex; flex-wrap: wrap; gap: 6px; }
.seg label { position: relative; }
.seg input { position: absolute; opacity: 0; inset: 0; margin: 0; cursor: pointer; }
.seg span { display: inline-block; padding: 9px 14px; border: 1px solid #c4ccd4; border-radius: 999px; font-size: .95rem; font-weight: 550; color: var(--ink-2); cursor: pointer; user-select: none; }
.seg input:checked + span { background: var(--ink); border-color: var(--ink); color: #fff; }
.seg input:focus-visible + span { box-shadow: var(--focus); }
.check, .field > label.check { display: flex; font-weight: 400; margin: 0; gap: 10px; align-items: flex-start; font-size: .95rem; cursor: pointer; }
.check input { width: 18px; height: 18px; margin: 3px 0 0; accent-color: var(--accent); flex: none; }
details.more { border-top: 1px solid var(--line-soft); margin-top: 18px; padding-top: 12px; }
details.more > summary { cursor: pointer; font-weight: 600; color: var(--accent); font-size: .95rem; }
details.more[open] > summary { margin-bottom: 14px; }
.btn { display: inline-flex; align-items: center; justify-content: center; gap: 8px; font: inherit; font-weight: 650; font-size: 1rem; border-radius: var(--radius-sm); padding: 12px 18px; min-height: 46px; cursor: pointer; border: 1px solid transparent; text-decoration: none; }
.btn-primary { background: var(--accent); color: #fff; width: 100%; margin-top: 18px; }
.btn-primary:hover { background: var(--accent-strong); color: #fff; }
.btn-ghost { background: transparent; border-color: var(--line); color: var(--ink-2); font-size: .9rem; padding: 8px 12px; min-height: 38px; }
.btn-ghost:hover { border-color: var(--ink-2); color: var(--ink); }
@media (min-width: 901px) { .btn-primary.mobile-only { display: none; } }

/* ---------- Resultado: estilo nómina ---------- */
.result { position: sticky; top: 16px; overflow: hidden; }
@media (max-width: 900px) { .result { position: static; } }
.result-head { display: flex; justify-content: space-between; align-items: baseline; gap: 12px; padding: 16px 22px; border-bottom: 1px dashed var(--line); background: #fafbfc; }
.result-head h2 { font-size: 1rem; margin: 0; }
.result-head small { color: var(--muted); font-size: .82rem; }
.big { padding: 20px 22px 6px; }
.big .label { font-size: .9rem; color: var(--muted); font-weight: 550; }
.big .value { font-size: clamp(2.2rem, 1.6rem + 2.4vw, 3rem); font-weight: 800; letter-spacing: -.03em; line-height: 1.1; color: var(--ink); font-variant-numeric: tabular-nums; }
.big .value small { font-size: .45em; font-weight: 650; color: var(--muted); letter-spacing: 0; margin-left: 4px; }
.big .sub { font-size: .95rem; color: var(--ink-2); margin-top: 4px; }
.ledger { list-style: none; margin: 0; padding: 10px 22px 6px; }
.ledger li { display: flex; align-items: baseline; gap: 8px; padding: 7px 0; font-size: .97rem; }
.ledger li::after { content: none; }
.ledger .k { color: var(--ink-2); }
.ledger .dots { flex: 1; border-bottom: 1px dotted #b9c2ca; transform: translateY(-4px); min-width: 16px; }
.ledger .v { font-weight: 650; white-space: nowrap; }
.ledger .neg .v { color: #9b2c2c; }
.ledger .sec { padding-top: 12px; font-size: .78rem; font-weight: 700; color: var(--muted); letter-spacing: .02em; }
.ledger .sec::after { content: none; }
.ledger .total { border-top: 2px solid var(--ink); margin-top: 6px; padding-top: 10px; font-weight: 800; }
.ledger .total .k { color: var(--ink); }
.bar { display: flex; height: 10px; border-radius: 999px; overflow: hidden; margin: 6px 22px 4px; background: var(--line-soft); }
.bar i { display: block; height: 100%; }
.bar .b-neto { background: var(--accent); }
.bar .b-irpf { background: #c27c0e; }
.bar .b-ss { background: #5a6875; }
.legend { display: flex; flex-wrap: wrap; gap: 4px 14px; padding: 4px 22px 0; font-size: .82rem; color: var(--muted); list-style: none; margin: 0; }
.legend li::before { content: ""; display: inline-block; width: 9px; height: 9px; border-radius: 2px; margin-right: 6px; background: var(--c); }
.result-foot { display: flex; flex-wrap: wrap; gap: 8px; align-items: center; justify-content: space-between; padding: 14px 22px 18px; border-top: 1px solid var(--line-soft); margin-top: 12px; }
.result-foot p { margin: 0; font-size: .82rem; color: var(--muted); flex: 1 1 220px; line-height: 1.45; }
.actions { display: flex; gap: 8px; }
.note { margin: 10px 22px 0; padding: 10px 12px; border-radius: var(--radius-sm); font-size: .9rem; line-height: 1.5; background: var(--warn-soft); color: #5f3a00; }
.note.ok { background: var(--accent-soft); color: #0b4a37; }
.note:empty { display: none; }

/* Barra fija con el resultado en móvil */
.mini { display: none; }
@media (max-width: 900px) {
  .mini { position: fixed; left: 0; right: 0; bottom: 0; z-index: 30; display: flex; align-items: center; justify-content: space-between; gap: 12px;
    padding: 10px 16px calc(10px + env(safe-area-inset-bottom)); background: var(--ink); color: #fff; text-decoration: none; transition: transform .2s ease; }
  .mini[hidden] { display: flex; transform: translateY(110%); }
  .mini span { font-size: .85rem; color: #c9d3db; flex: 1; min-width: 0; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
  .mini strong { font-size: 1.2rem; font-variant-numeric: tabular-nums; white-space: nowrap; }
  .mini em { font-style: normal; font-size: .85rem; font-weight: 650; color: #9fe0c4; white-space: nowrap; }
  .mini:hover { color: #fff; }
}
@media (prefers-reduced-motion: reduce) { .mini { transition: none; } }

/* ---------- Contenido ---------- */
.content { display: grid; grid-template-columns: minmax(0, var(--measure)) minmax(0, 1fr); gap: 48px; padding: 36px 0 24px; }
@media (max-width: 1000px) { .content { grid-template-columns: 1fr; gap: 24px; } }
.prose { max-width: var(--measure); }
.prose h2 { font-size: clamp(1.35rem, 1.1rem + .8vw, 1.65rem); margin: 2.2em 0 .5em; }
.prose h2:first-child { margin-top: 0; }
.prose h3 { font-size: 1.15rem; margin: 1.6em 0 .4em; }
.prose p, .prose ul, .prose ol { margin: 0 0 1em; }
.prose li { margin-bottom: .35em; }
.prose .answer { font-size: 1.1rem; color: var(--ink); border-left: 3px solid var(--accent); padding: 2px 0 2px 16px; }
.formula { background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius); padding: 14px 16px; font-weight: 600; margin: 0 0 1em; }
.table-wrap { overflow-x: auto; margin: 0 0 1.2em; border: 1px solid var(--line); border-radius: var(--radius); background: var(--surface); }
table { width: 100%; border-collapse: collapse; font-size: .95rem; }
th, td { text-align: left; padding: 10px 14px; border-bottom: 1px solid var(--line-soft); vertical-align: top; }
th { background: #f7f9fa; font-weight: 650; color: var(--ink-2); font-size: .88rem; }
tr:last-child td { border-bottom: 0; }
td.r, th.r { text-align: right; white-space: nowrap; }
.faq details { border-bottom: 1px solid var(--line); padding: 4px 0; }
.faq summary { cursor: pointer; font-weight: 650; padding: 12px 28px 12px 0; position: relative; list-style: none; }
.faq summary::-webkit-details-marker { display: none; }
.faq summary::after { content: "+"; position: absolute; right: 4px; top: 10px; font-size: 1.3rem; color: var(--muted); font-weight: 400; }
.faq details[open] summary::after { content: "–"; }
.faq details p { margin: 0 0 14px; color: var(--ink-2); }
.sources { font-size: .92rem; color: var(--ink-2); }
.disclaimer { font-size: .9rem; color: var(--muted); border-top: 1px solid var(--line); padding-top: 14px; }
.author { display: flex; gap: 14px; align-items: flex-start; background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius); padding: 16px; margin-top: 28px; font-size: .92rem; color: var(--ink-2); }
.author svg { width: 36px; height: 36px; flex: none; }
.author p { margin: 0; }

/* Barra lateral */
.aside { align-self: start; position: sticky; top: 16px; }
@media (max-width: 1000px) { .aside { position: static; } }
.aside h2 { font-size: .95rem; margin: 0 0 8px; color: var(--ink-2); }
.toc { list-style: none; margin: 0 0 24px; padding: 0; border-left: 2px solid var(--line); }
.toc a { display: block; padding: 5px 0 5px 14px; color: var(--ink-2); text-decoration: none; font-size: .93rem; }
.toc a:hover { color: var(--accent); }
@media (max-width: 1000px) { .toc-box { display: none; } }
.ad { margin: 1.6em 0; }
.ad:empty { display: none; }

/* Listado de calculadoras */
.calc-list { list-style: none; margin: 0; padding: 0; display: grid; gap: 0; background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius-lg); overflow: hidden; }
.calc-list li { border-bottom: 1px solid var(--line-soft); }
.calc-list li:last-child { border-bottom: 0; }
.calc-list a { display: grid; grid-template-columns: 40px 1fr auto; gap: 4px 16px; align-items: center; padding: 18px 20px; color: var(--ink); text-decoration: none; }
.calc-list a:hover { background: #f8faf9; }
.calc-list a:hover .go { color: var(--accent); transform: translateX(2px); }
.calc-list .ico { grid-row: 1 / span 2; width: 40px; height: 40px; border-radius: 10px; background: var(--accent-soft); color: var(--accent); display: grid; place-items: center; }
.calc-list .ico svg { width: 22px; height: 22px; }
.calc-list .t { font-weight: 700; font-size: 1.05rem; }
.calc-list .d { color: var(--muted); font-size: .93rem; grid-column: 2; }
.calc-list .fig { grid-row: 1 / span 2; grid-column: 3; text-align: right; font-size: .82rem; color: var(--muted); line-height: 1.3; }
.calc-list .fig strong { display: block; color: var(--ink); font-size: 1.05rem; font-variant-numeric: tabular-nums; }
@media (max-width: 600px) { .calc-list a { grid-template-columns: 40px 1fr; } .calc-list .fig { grid-column: 2; grid-row: auto; text-align: left; } .calc-list .fig strong { display: inline; margin-left: 6px; } }
.related { list-style: none; padding: 0; margin: 0; display: grid; grid-template-columns: repeat(auto-fill, minmax(230px, 1fr)); gap: 12px; }
.related a { display: block; background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius); padding: 14px 16px; color: var(--ink); text-decoration: none; font-weight: 650; height: 100%; }
.related a span { display: block; font-weight: 400; color: var(--muted); font-size: .9rem; margin-top: 2px; }
.related a:hover { border-color: var(--accent); }

/* Portada */
.hero { padding: 44px 0 28px; }
.hero h1 { font-size: clamp(2rem, 1.3rem + 3vw, 3.25rem); max-width: 18ch; }
.facts { display: grid; grid-template-columns: repeat(4, 1fr); gap: 12px; margin: 28px 0 0; padding: 0; list-style: none; }
@media (max-width: 760px) { .facts { grid-template-columns: repeat(2, 1fr); } }
.stat { background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius); padding: 14px 16px; }
.stat strong { display: block; font-size: 1.35rem; font-weight: 800; letter-spacing: -.02em; }
.stat span { font-size: .85rem; color: var(--muted); }
.section { padding: 28px 0; }
.section > h2 { font-size: 1.4rem; margin: 0 0 14px; }
.trust { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; list-style: none; padding: 0; margin: 0; }
@media (max-width: 760px) { .trust { grid-template-columns: 1fr; } }
.trust h3 { font-size: 1.05rem; margin: 0 0 4px; }
.trust p { margin: 0; color: var(--ink-2); font-size: .97rem; }

/* Páginas de texto */
.doc { max-width: var(--measure); padding: 8px 0 40px; }
.doc h2 { font-size: 1.35rem; margin: 1.8em 0 .5em; }
.doc p, .doc ul { margin: 0 0 1em; }
.todo { background: #fff4c2; padding: 0 4px; border-radius: 3px; }

/* Pie */
.site-footer { background: var(--ink); color: #c9d3db; margin-top: 48px; padding: 36px 0 28px; font-size: .93rem; }
.site-footer a { color: #e7edf2; text-decoration: none; }
.site-footer a:hover { color: #fff; text-decoration: underline; }
.foot-grid { display: grid; grid-template-columns: 1.4fr 1fr 1fr; gap: 28px; }
@media (max-width: 760px) { .foot-grid { grid-template-columns: 1fr; } }
.site-footer h2 { font-size: .9rem; color: #fff; margin: 0 0 10px; }
.site-footer ul { list-style: none; margin: 0; padding: 0; display: grid; gap: 6px; }
.site-footer .brand { color: #fff; margin-bottom: 8px; }
.site-footer .legal { border-top: 1px solid #2c3a45; margin-top: 28px; padding-top: 16px; display: flex; flex-wrap: wrap; justify-content: space-between; gap: 10px; color: #9fb0bd; font-size: .85rem; }

@media print {
  .site-header, .site-footer, .aside, .actions, .btn, .ad { display: none !important; }
  body { background: #fff; }
}