@font-face {
  font-family: "Atkinson Hyperlegible";
  src: url("fonts/atkinson-hyperlegible-latin-400-normal.woff2") format("woff2");
  font-weight: 400; font-style: normal; font-display: swap;
}
@font-face {
  font-family: "Atkinson Hyperlegible";
  src: url("fonts/atkinson-hyperlegible-latin-700-normal.woff2") format("woff2");
  font-weight: 700; font-style: normal; font-display: swap;
}
@font-face {
  font-family: "Bricolage Grotesque";
  src: url("fonts/bricolage-grotesque-latin-700-normal.woff2") format("woff2");
  font-weight: 700; font-style: normal; font-display: swap;
}
@font-face {
  font-family: "Bricolage Grotesque";
  src: url("fonts/bricolage-grotesque-latin-800-normal.woff2") format("woff2");
  font-weight: 800; font-style: normal; font-display: swap;
}

:root {
  --paper: #eef2ec;      /* papel de nómina */
  --sheet: #ffffff;
  --ink: #1c2b39;        /* tinta azul marino */
  --ink-soft: #4d5d6a;
  --rule: #c5d0c8;
  --stamp: #1e6b52;      /* verde sello */
  --stamp-ink: #ffffff;
  --marker: #f6d94a;     /* rotulador fluorescente */
  --warn: #9a3b1b;
  --focus: #2457c5;

  --font-body: "Atkinson Hyperlegible", "Segoe UI", system-ui, -apple-system, sans-serif;
  --font-display: "Bricolage Grotesque", "Atkinson Hyperlegible", "Segoe UI", system-ui, sans-serif;

  --step--1: 0.875rem;
  --step-0: 1.0625rem;
  --step-1: 1.3rem;
  --step-2: 1.65rem;
  --step-3: clamp(2rem, 1.4rem + 2.6vw, 3.1rem);
  --step-4: clamp(2.4rem, 1.5rem + 4vw, 4.2rem);

  --space: 1.5rem;
  --radius: 6px;
  color-scheme: light;
}

@media (prefers-color-scheme: dark) {
  :root {
    --paper: #121a20;
    --sheet: #1b252d;
    --ink: #e5ebe7;
    --ink-soft: #a9b6b0;
    --rule: #33434d;
    --stamp: #4fb48c;
    --stamp-ink: #0d1a14;
    --marker: rgba(246, 217, 74, 0.35);
    --warn: #f0a07f;
    --focus: #8fb0ff;
    color-scheme: dark;
  }
}

*, *::before, *::after { box-sizing: border-box; }

html { -webkit-text-size-adjust: 100%; }

body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: var(--font-body);
  font-size: var(--step-0);
  line-height: 1.55;
}

img, svg { max-width: 100%; }

a { color: var(--ink); text-decoration-thickness: 1px; text-underline-offset: 0.2em; }
a:hover { text-decoration-thickness: 2px; }

:focus-visible { outline: 3px solid var(--focus); outline-offset: 2px; }

h1, h2, h3 {
  font-family: var(--font-display);
  line-height: 1.1;
  letter-spacing: -0.015em;
  margin: 0 0 0.5em;
}
h1 { font-size: var(--step-4); font-weight: 800; letter-spacing: -0.03em; }
h2 { font-size: var(--step-2); font-weight: 700; margin-top: 2.2em; }
h3 { font-size: var(--step-1); font-weight: 700; margin-top: 1.6em; }

p { margin: 0 0 1em; }

.wrap { width: min(1120px, 100% - 2.5rem); margin-inline: auto; }

.skip {
  position: absolute; left: -9999px;
}
.skip:focus { left: 1rem; top: 1rem; background: var(--sheet); padding: 0.5rem 1rem; z-index: 10; }

/* Cabecera */
.site-header { border-bottom: 1px solid var(--rule); }
.site-header .wrap {
  display: flex; align-items: center; justify-content: space-between;
  gap: 1rem; padding-block: 1rem;
}
.brand {
  font-family: var(--font-display); font-weight: 800; font-size: 1.3rem;
  text-decoration: none; letter-spacing: -0.02em;
  display: inline-flex; align-items: center; gap: 0.55rem;
}
.brand svg { flex: none; }
.brand .tick { stroke: var(--stamp); }
.site-nav a { text-decoration: none; font-weight: 700; }
.site-nav a:hover { text-decoration: underline; }

/* Pie */
.site-footer {
  margin-top: 5rem; border-top: 1px solid var(--rule);
  padding-block: 2rem 3rem; color: var(--ink-soft); font-size: var(--step--1);
}
.site-footer p { max-width: 70ch; }
.legal-links { display: flex; flex-wrap: wrap; gap: 0.5rem 1.5rem; }
.legal-links a { color: var(--ink-soft); }

/* Botones */
.btn {
  display: inline-block; background: var(--stamp); color: var(--stamp-ink);
  font-weight: 700; text-decoration: none; padding: 0.85rem 1.4rem;
  border-radius: var(--radius); border: 0; font-size: var(--step-0); font-family: inherit;
  cursor: pointer;
}
.btn:hover { filter: brightness(1.08); }

/* ---------- Portada ---------- */
.hero { padding-block: clamp(2.5rem, 6vw, 5rem) 3rem; }
.hero .wrap {
  display: grid; gap: 3rem; align-items: center;
  grid-template-columns: minmax(0, 1.15fr) minmax(0, 0.85fr);
}
.hero h1 { max-width: 13ch; }
.hero .lede { font-size: var(--step-1); color: var(--ink-soft); max-width: 36ch; margin-bottom: 1.8rem; }

.tool-list { list-style: none; margin: 0; padding: 0; border-top: 2px solid var(--ink); }
.tool-list li { border-bottom: 1px solid var(--rule); }
.tool-list a, .tool-list .soon {
  display: grid; grid-template-columns: 1fr auto; gap: 0.25rem 1.5rem;
  padding: 1.25rem 0; text-decoration: none; align-items: baseline;
}
.tool-list strong { font-family: var(--font-display); font-size: var(--step-1); }
.tool-list span.desc { grid-column: 1; color: var(--ink-soft); }
.tool-list .state { grid-column: 2; grid-row: 1; font-weight: 700; font-size: var(--step--1); }
.tool-list a .state { color: var(--stamp); }
.tool-list .soon { color: var(--ink-soft); }
.tool-list a:hover strong { text-decoration: underline; text-underline-offset: 0.2em; }
.tool-list .tool-main {
  display: grid; grid-template-columns: 1fr auto; gap: 0.25rem 1.5rem;
  padding: 1.25rem 0 0.75rem; align-items: baseline;
}
.tool-list .tool-main .tool-title { display: inline; padding: 0; text-decoration: none; }
.tool-list .tool-main .state { color: var(--stamp); }
.subtools { list-style: none; margin: 0 0 1.25rem; padding: 0 0 0 1rem; border-left: 2px solid var(--rule); }
.subtools li { border: 0; }
.tool-list .subtools a { display: inline-block; padding: 0.3rem 0; text-decoration: underline; text-decoration-thickness: 1px; text-underline-offset: 0.2em; color: var(--ink); }
.tool-list .subtools a:hover { text-decoration-thickness: 2px; }

.principles { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 2rem; margin-top: 1rem; }
.principles h3 { margin-top: 0; }
.principles p { color: var(--ink-soft); }

/* ---------- Hoja de liquidación ---------- */
.sheet {
  background: var(--sheet);
  border: 1px solid var(--rule);
  border-radius: 2px;
  padding: 1.75rem 1.75rem 1.5rem;
  position: relative;
  box-shadow: 0 1px 0 var(--rule), 0 18px 40px -28px rgba(28, 43, 57, 0.45);
}
.sheet::before {
  /* borde perforado superior */
  content: ""; position: absolute; left: 0; right: 0; top: -1px; height: 6px;
  background: radial-gradient(circle at 5px -1px, var(--paper) 3.5px, transparent 4px) repeat-x;
  background-size: 14px 6px;
}
.sheet h2, .sheet .sheet-title {
  font-family: var(--font-display); font-size: var(--step-1); margin: 0 0 0.2rem; font-weight: 700;
}
.sheet .sheet-sub { color: var(--ink-soft); font-size: var(--step--1); margin-bottom: 1.2rem; }

.lines { list-style: none; margin: 0; padding: 0; }
.line { padding: 0.55rem 0; border-bottom: 1px dashed var(--rule); }
.line .row { display: flex; align-items: baseline; gap: 0.5rem; }
.line .label { flex: 0 1 auto; }
.line .dots { flex: 1 1 1.5rem; border-bottom: 2px dotted var(--rule); transform: translateY(-0.3em); min-width: 1rem; }
.line .amount { flex: none; font-variant-numeric: tabular-nums; font-weight: 700; }
.line .how { display: block; font-size: var(--step--1); color: var(--ink-soft); margin-top: 0.15rem; }
.line.neg .amount { color: var(--warn); }
.line.best { border-left: 3px solid var(--stamp); padding-left: 0.7rem; margin-left: -0.85rem; }
.line.best .label { font-weight: 700; }
.sheet-section { font-weight: 700; margin: 1.4rem 0 0.2rem; }

.subtotal { display: flex; justify-content: space-between; gap: 1rem; padding: 0.8rem 0 0.2rem; font-weight: 700; }
.subtotal span:last-child { font-variant-numeric: tabular-nums; }

.total {
  margin-top: 1rem; padding-top: 1rem; border-top: 2px solid var(--ink);
  display: flex; justify-content: space-between; align-items: baseline; gap: 1rem; flex-wrap: wrap;
}
.total .t-label { font-weight: 700; }
.total .t-amount {
  font-family: var(--font-display); font-weight: 800; font-size: var(--step-3);
  font-variant-numeric: tabular-nums; letter-spacing: -0.02em;
  background: linear-gradient(transparent 58%, var(--marker) 58%, var(--marker) 92%, transparent 92%);
  padding: 0 0.15em;
}

.stamp {
  position: absolute; right: 1.1rem; top: 1rem;
  border: 2px solid var(--stamp); color: var(--stamp);
  border-radius: 999px; padding: 0.25rem 0.75rem;
  font-weight: 700; font-size: 0.8rem; transform: rotate(-6deg);
  opacity: 0.85;
}

.sheet-notes { margin-top: 1.2rem; font-size: var(--step--1); color: var(--ink-soft); }
.sheet-notes p { margin-bottom: 0.5em; }

.sheet-empty { color: var(--ink-soft); padding: 1.5rem 0 0.5rem; }
.disclaimer {
  margin: 1.2rem 0 0; padding-top: 0.9rem; border-top: 1px dashed var(--rule);
  font-size: var(--step--1); color: var(--ink-soft);
}
.disclaimer a { color: var(--ink-soft); }
.sheet-errors { color: var(--warn); padding-left: 1.1rem; }

/* ---------- Calculadora ---------- */
.calc-head { padding-block: clamp(2rem, 5vw, 3.5rem) 1.5rem; }
.calc-head h1 { font-size: var(--step-3); max-width: 20ch; }
.calc-head .lede { font-size: var(--step-1); color: var(--ink-soft); max-width: 55ch; }
.crumbs { font-size: var(--step--1); color: var(--ink-soft); margin-bottom: 1rem; }
.crumbs a { color: var(--ink-soft); }

.calc {
  display: grid; grid-template-columns: minmax(0, 7fr) minmax(0, 5fr);
  gap: 2.5rem; align-items: start;
}
.calc .result { position: sticky; top: 1.5rem; }

form fieldset {
  border: 0; border-top: 2px solid var(--ink); margin: 0 0 2rem; padding: 1rem 0 0;
}
form legend {
  font-family: var(--font-display); font-weight: 700; font-size: var(--step-1);
  padding: 0; margin-bottom: 0.8rem; display: flex; gap: 0.6rem; align-items: baseline;
}
form legend .n {
  display: inline-grid; place-items: center; width: 1.7rem; height: 1.7rem;
  border-radius: 999px; background: var(--ink); color: var(--paper);
  font-size: 0.95rem; transform: translateY(-0.1em);
}

.field { margin-bottom: 1.1rem; }
.field > label, .field > .label { display: block; font-weight: 700; margin-bottom: 0.35rem; }
.field .hint { display: block; font-size: var(--step--1); color: var(--ink-soft); margin-top: 0.3rem; }

.grid-2 { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 0 1.25rem; }

input[type="date"], input[type="number"], select {
  width: 100%; font: inherit; color: var(--ink);
  background: var(--sheet); border: 1.5px solid var(--rule); border-radius: var(--radius);
  padding: 0.7rem 0.8rem; min-height: 3rem;
}
input:hover, select:hover { border-color: var(--ink-soft); }

.money { position: relative; }
.money input { padding-right: 2.2rem; }
.money::after { content: "€"; position: absolute; right: 0.9rem; top: 50%; transform: translateY(-50%); color: var(--ink-soft); }

/* Selector de motivo: opciones grandes */
.choices { display: grid; gap: 0.5rem; }
.choice {
  display: grid; grid-template-columns: auto 1fr; gap: 0.2rem 0.75rem; align-items: start;
  padding: 0.8rem 0.9rem; border: 1.5px solid var(--rule); border-radius: var(--radius);
  background: var(--sheet); cursor: pointer;
}
.choice input { margin: 0.3rem 0 0; width: 1.15rem; height: 1.15rem; accent-color: var(--stamp); }
.choice strong { font-weight: 700; }
.choice small { grid-column: 2; color: var(--ink-soft); font-size: var(--step--1); }
.choice:has(input:checked) { border-color: var(--stamp); box-shadow: inset 0 0 0 1px var(--stamp); }

.seg { display: inline-flex; border: 1.5px solid var(--rule); border-radius: var(--radius); overflow: hidden; background: var(--sheet); }
.seg label { padding: 0.55rem 0.9rem; cursor: pointer; font-weight: 700; }
.seg input { position: absolute; opacity: 0; pointer-events: none; }
.seg label:has(input:checked) { background: var(--ink); color: var(--paper); }
.seg label:has(input:focus-visible) { outline: 3px solid var(--focus); outline-offset: -3px; }

.check { display: flex; gap: 0.6rem; align-items: flex-start; }
.check input { width: 1.15rem; height: 1.15rem; margin-top: 0.2rem; accent-color: var(--stamp); flex: none; }

[hidden] { display: none !important; }

/* ---------- Texto explicativo ---------- */
.prose { max-width: 68ch; }
.prose ul, .prose ol { padding-left: 1.2rem; }
.prose li { margin-bottom: 0.4em; }
.prose table { border-collapse: collapse; width: 100%; margin: 1rem 0 1.5rem; font-size: var(--step--1); }
.prose th, .prose td { text-align: left; padding: 0.55rem 0.6rem; border-bottom: 1px solid var(--rule); vertical-align: top; }
.prose th { border-bottom: 2px solid var(--ink); }
.prose td.num { text-align: right; font-variant-numeric: tabular-nums; white-space: nowrap; }
.table-scroll { overflow-x: auto; }

.faq details { border-bottom: 1px solid var(--rule); padding: 0.9rem 0; }
.faq summary { cursor: pointer; font-weight: 700; font-size: var(--step-0); }
.faq details p { margin: 0.7rem 0 0.2rem; }

.note {
  border-left: 4px solid var(--stamp); background: var(--sheet);
  padding: 1rem 1.2rem; margin: 1.5rem 0; max-width: 68ch;
}

.meta { font-size: var(--step--1); color: var(--ink-soft); }

/* ---------- Responsive ---------- */
@media (max-width: 900px) {
  .hero .wrap, .calc { grid-template-columns: 1fr; }
  .calc .result { position: static; }
  .principles { grid-template-columns: 1fr; gap: 0.5rem; }
}
@media (max-width: 520px) {
  .grid-2 { grid-template-columns: 1fr; }
  .sheet { padding: 1.4rem 1.1rem 1.2rem; }
  .stamp { display: none; }
}

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

@media print {
  .site-header, .site-footer, form, .prose, .crumbs { display: none; }
  body { background: #fff; }
  .calc { display: block; }
}