/* =============================================================================
   Calculadoras Laborales — hoja de estilos única.
   1 Tokens · 2 Reset · 3 Utilidades · 4 Tipografía · 5 Cabecera · 6 Hero
   7 Herramienta · 8 Resultado · 9 Tarjetas · 10 Contenido · 11 Producto
   12 Pie · 13 Anuncios · 14 Responsive · 15 Modo oscuro · 16 Impresión
   17 Reduced-motion
   ========================================================================== */

/* =============================================================
   1. Tokens
   ============================================================= */
:root {
  color-scheme: light;
  --ink:        #0a1628;
  --ink-soft:   #46586e;
  --ink-faint:  #74869b;
  --line:       #e4eaf1;
  --line-soft:  #eff3f8;
  --bg:         #ffffff;
  --bg-soft:    #f7f9fc;
  --bg-tint:    #f1f8f5;
  --bg-hero-a:  #eef7f3;
  --bg-hero-b:  #ffffff;

  --accent:     #0a7f5f;
  --accent-dk:  #06624a;
  --accent-lt:  #d9f0e7;
  --accent-glow: rgba(10, 127, 95, .16);
  --warn:       #8a5000;
  --warn-bg:    #fff6e6;
  --warn-line:  #f4d9a8;
  --danger:     #b3123f;

  --radius:     16px;
  --radius-lg:  22px;
  --radius-sm:  10px;
  --gutter:     1.15rem;
  --maxw:       1140px;
  --colw:       680px;

  --sans: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  --mono: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;

  --ease-out: cubic-bezier(0.16, 1, 0.3, 1);
  --sombra-xs: 0 1px 2px rgba(10, 22, 40, .05);
  --sombra:    0 1px 2px rgba(10, 22, 40, .04), 0 10px 26px -14px rgba(10, 22, 40, .22);
  --sombra-md: 0 2px 4px rgba(10, 22, 40, .05), 0 18px 40px -20px rgba(10, 22, 40, .3);
  --sombra-lg: 0 4px 8px rgba(10, 22, 40, .07), 0 34px 70px -28px rgba(10, 22, 40, .38);
}

/* =============================================================
   2. Reset & base
   ============================================================= */
*, *::before, *::after { box-sizing: border-box; margin: 0; }
html { -webkit-text-size-adjust: 100%; tab-size: 2; scroll-behavior: smooth; }
body {
  font-family: var(--sans);
  font-size: 16px;
  line-height: 1.62;
  color: var(--ink);
  background: var(--bg);
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  overflow-x: clip;
}
img, svg, video { display: block; max-width: 100%; }
/* `hidden` debe ganar a cualquier display de clase (.boton es inline-flex). */
[hidden] { display: none !important; }
img { height: auto; }
button { font: inherit; color: inherit; cursor: pointer; border: 0; background: none; }
a { color: var(--accent-dk); text-decoration: none; }
a:hover { text-decoration: underline; }
p { text-wrap: pretty; }
h1, h2, h3, h4 { text-wrap: balance; line-height: 1.14; letter-spacing: -0.022em; font-weight: 700; }
::selection { background: var(--accent-lt); color: var(--ink); }
:focus-visible { outline: 2px solid var(--accent); outline-offset: 3px; border-radius: 6px; }

/* =============================================================
   3. Utilidades
   ============================================================= */
.contenedor { width: 100%; max-width: var(--maxw); margin-inline: auto; padding-inline: var(--gutter); }
.columna { max-width: var(--colw); }
.sr-only {
  position: absolute; width: 1px; height: 1px; padding: 0; overflow: hidden;
  clip: rect(0 0 0 0); white-space: nowrap; border: 0;
}
.salto {
  position: fixed; top: -100px; left: 1rem; z-index: 999;
  padding: .6rem 1rem; background: var(--ink); color: #fff; border-radius: 8px;
}
.salto:focus { top: 1rem; }

/* =============================================================
   4. Tipografía
   ============================================================= */
h1 { font-size: clamp(1.72rem, 1.25rem + 2.1vw, 2.7rem); letter-spacing: -0.032em; }
h2 { font-size: clamp(1.3rem, 1.08rem + 1vw, 1.72rem); margin-block: 2.4rem .7rem; }
h3 { font-size: 1.1rem; margin-block: 1.5rem .4rem; }
.sub { color: var(--ink-soft); font-size: 1.02rem; margin-top: .5rem; max-width: 64ch; }
/* Respuesta directa: se lee como un dato, no como un eslogan. */
.sub.respuesta { border-left: 3px solid var(--accent); padding-left: .9rem; }
.menudo { font-size: .85rem; color: var(--ink-faint); }

/* =============================================================
   5. Cabecera
   ============================================================= */
.cabecera {
  position: sticky; top: 0; z-index: 50;
  background: rgba(255, 255, 255, .86);
  backdrop-filter: saturate(170%) blur(12px);
  border-bottom: 1px solid var(--line);
}
.cabecera-fila { display: flex; align-items: center; gap: 1rem; min-height: 60px; }
.marca { display: flex; align-items: center; gap: .55rem; font-weight: 700; letter-spacing: -.025em; color: var(--ink); }
.marca:hover { text-decoration: none; }
.marca svg { flex: none; }
.marca span { font-size: .95rem; white-space: nowrap; }
@media (max-width: 420px) { .marca span { font-size: 0; }
  .marca span::after { content: "Calculadoras"; font-size: .95rem; } }
.nav-paises { margin-left: auto; display: flex; gap: .15rem; overflow-x: auto; scrollbar-width: none; }
.nav-paises::-webkit-scrollbar { display: none; }
.nav-paises a {
  padding: .4rem .68rem; border-radius: 99px; font-size: .88rem; color: var(--ink-soft);
  white-space: nowrap; transition: background .18s var(--ease-out), color .18s var(--ease-out);
}
.nav-paises a:hover { background: var(--bg-soft); color: var(--ink); text-decoration: none; }
.nav-paises a[aria-current="true"] { background: var(--accent-lt); color: var(--accent-dk); font-weight: 600; }

/* =============================================================
   6. Hero
   ============================================================= */
.hero {
  background:
    radial-gradient(900px 340px at 18% -10%, var(--accent-glow), transparent 70%),
    linear-gradient(180deg, var(--bg-hero-a) 0%, var(--bg-hero-b) 100%);
  border-bottom: 1px solid var(--line-soft);
  padding: clamp(1.7rem, 1rem + 3.2vw, 3.4rem) 0 clamp(1.5rem, 1rem + 2.4vw, 2.6rem);
}
.hero-sello {
  display: inline-flex; align-items: center; gap: .45rem;
  padding: .32rem .75rem; border-radius: 99px;
  background: var(--bg); border: 1px solid var(--line);
  font-size: .78rem; font-weight: 600; color: var(--accent-dk);
  box-shadow: var(--sombra-xs);
}
.hero-sello::before { content: ""; width: 7px; height: 7px; border-radius: 50%; background: var(--accent); }
.hero h1 { margin-top: .9rem; max-width: 19ch; }
.hero-sub { margin-top: .85rem; font-size: clamp(1rem, .96rem + .3vw, 1.12rem); color: var(--ink-soft); max-width: 56ch; }

.chips { display: flex; flex-wrap: wrap; gap: .5rem; margin-top: 1.5rem; }
.chip {
  display: inline-flex; align-items: center; gap: .5rem;
  padding: .55rem .95rem .55rem .62rem; border-radius: 99px;
  background: var(--bg); border: 1px solid var(--line); color: var(--ink);
  font-size: .92rem; font-weight: 600; box-shadow: var(--sombra-xs);
  transition: transform .18s var(--ease-out), box-shadow .18s var(--ease-out), border-color .18s var(--ease-out);
}
.chip:hover { text-decoration: none; transform: translateY(-2px); border-color: var(--accent); box-shadow: var(--sombra); }
.bandera { flex: none; width: 22px; height: 16px; border-radius: 3px; box-shadow: inset 0 0 0 1px rgba(10, 22, 40, .14); }

.garantias {
  list-style: none; padding: 0; margin: 1.5rem 0 0;
  display: flex; flex-wrap: wrap; gap: .5rem 1.4rem;
  font-size: .87rem; color: var(--ink-soft);
}
.garantias li { display: flex; align-items: center; gap: .45rem; }
.garantias svg { flex: none; color: var(--accent); }

/* =============================================================
   7. Herramienta
   ============================================================= */
.migas { font-size: .82rem; color: var(--ink-faint); padding-top: .7rem; }
.migas a { color: var(--ink-faint); }
.migas a:hover { color: var(--accent-dk); }
.migas span { margin-inline: .35rem; }

.herramienta {
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  background: var(--bg);
  box-shadow: var(--sombra-md);
  overflow: hidden;
  margin-top: .9rem;
}
.herramienta-cuerpo { padding: 1.15rem; }
.campos { display: grid; gap: .8rem; }
.campo { display: grid; gap: .32rem; }
.campo > label, .grupo > legend { font-size: .88rem; font-weight: 650; color: var(--ink); }
.campo .pista { font-size: .78rem; color: var(--ink-faint); line-height: 1.45; }
.campo input, .campo select {
  width: 100%; padding: .78rem .85rem; font: inherit; color: var(--ink);
  background: var(--bg); border: 1.5px solid #cdd8e4; border-radius: var(--radius-sm);
  transition: border-color .16s var(--ease-out), box-shadow .16s var(--ease-out);
}
.campo input:hover, .campo select:hover { border-color: #b4c4d5; }
.campo input:focus, .campo select:focus {
  outline: none; border-color: var(--accent); box-shadow: 0 0 0 4px var(--accent-glow);
}
.campo input[aria-invalid="true"] { border-color: var(--danger); }
/* El símbolo va como prefijo dentro del marco, no superpuesto: así nunca
   choca con la cifra, mida lo que mida ("Q", "B/.", "RD$"). */
.campo-moneda {
  display: flex; align-items: stretch; overflow: hidden;
  background: var(--bg); border: 1.5px solid #cdd8e4; border-radius: var(--radius-sm);
  transition: border-color .16s var(--ease-out), box-shadow .16s var(--ease-out);
}
.campo-moneda:hover { border-color: #b4c4d5; }
.campo-moneda:focus-within { border-color: var(--accent); box-shadow: 0 0 0 4px var(--accent-glow); }
.campo-moneda .simbolo {
  display: flex; align-items: center; padding-inline: .85rem; white-space: nowrap;
  background: var(--bg-soft); border-right: 1px solid var(--line);
  color: var(--ink-soft); font-size: .92rem; font-weight: 650;
}
.campo-moneda input,
.campo-moneda input:hover,
.campo-moneda input:focus {
  flex: 1; min-width: 0; border: 0; border-radius: 0; box-shadow: none; background: transparent;
}
.dos { display: grid; gap: .8rem; }
.grupo { border: 0; padding: 0; margin: 0; display: grid; gap: .45rem; }
.grupo legend { padding: 0; margin-bottom: .1rem; }

.alterna {
  display: inline-flex; align-items: center; gap: .4rem; align-self: start;
  font-size: .85rem; font-weight: 600; color: var(--accent-dk); background: none; padding: .1rem 0;
}
.alterna:hover { text-decoration: underline; }
.variables { display: none; gap: .5rem; grid-template-columns: repeat(2, 1fr); }
.variables.visible { display: grid; }
.variables label { font-size: .75rem; color: var(--ink-faint); }

.boton {
  display: inline-flex; align-items: center; justify-content: center; gap: .5rem;
  padding: .92rem 1.25rem; border-radius: var(--radius-sm);
  background: var(--accent); color: #fff; font-weight: 650; font-size: 1.02rem;
  width: 100%; box-shadow: 0 1px 2px rgba(10, 22, 40, .08), 0 8px 18px -10px var(--accent);
  transition: background .18s var(--ease-out), transform .12s var(--ease-out), box-shadow .18s var(--ease-out);
}
.boton:hover { background: var(--accent-dk); text-decoration: none; transform: translateY(-1px); }
.boton:active { transform: translateY(0); }
.boton-sec {
  background: var(--bg-soft); color: var(--ink); border: 1px solid var(--line);
  font-size: .88rem; font-weight: 600; padding: .62rem .85rem; width: auto; box-shadow: none;
}
.boton-sec:hover { background: #e9eff6; transform: none; }

/* =============================================================
   8. Resultado
   ============================================================= */
.resultado { display: none; border-top: 1px solid var(--line); background: var(--bg-tint); }
.resultado.visible { display: block; }
.resultado-cabeza { padding: 1.4rem 1.15rem 1.1rem; text-align: center; }
.resultado-etiqueta {
  font-size: .76rem; text-transform: uppercase; letter-spacing: .09em;
  color: var(--accent-dk); font-weight: 700;
}
.resultado-cifra {
  font-size: clamp(2.2rem, 1.4rem + 3.8vw, 3.2rem); font-weight: 800;
  letter-spacing: -.04em; line-height: 1.02; margin-top: .3rem; color: var(--ink);
  font-variant-numeric: tabular-nums;
}
.resultado-nota { font-size: .88rem; color: var(--ink-soft); margin-top: .45rem; }

.partes { list-style: none; padding: 0 1.15rem 1rem; display: grid; gap: .4rem; }
.partes li {
  display: flex; justify-content: space-between; gap: 1rem; align-items: baseline;
  padding: .6rem .8rem; background: rgba(255, 255, 255, .8); border-radius: var(--radius-sm);
  font-size: .93rem; border: 1px solid rgba(10, 22, 40, .05);
}
.partes li b { font-variant-numeric: tabular-nums; white-space: nowrap; }

.desglose { border-top: 1px solid rgba(10, 22, 40, .08); }
.desglose > summary {
  padding: .9rem 1.15rem; font-weight: 650; font-size: .92rem; cursor: pointer;
  color: var(--accent-dk); list-style: none; display: flex; align-items: center; gap: .45rem;
}
.desglose > summary::-webkit-details-marker { display: none; }
.desglose > summary::before { content: "▸"; transition: transform .2s var(--ease-out); }
.desglose[open] > summary::before { transform: rotate(90deg); }
.desglose-cuerpo { padding: 0 1.15rem 1.15rem; }

.pasos { list-style: none; padding: 0; display: grid; gap: .1rem; }
.pasos li {
  display: grid; grid-template-columns: 1fr auto; gap: .2rem 1rem;
  padding: .62rem 0; border-bottom: 1px dashed rgba(10, 22, 40, .13);
}
.pasos li:last-child { border-bottom: 0; }
.pasos .et { font-size: .9rem; font-weight: 600; }
.pasos .fo { grid-column: 1; font-size: .78rem; color: var(--ink-faint); font-family: var(--mono); line-height: 1.5; }
.pasos .va { grid-row: 1; grid-column: 2; font-variant-numeric: tabular-nums; font-weight: 650; white-space: nowrap; }
.pasos li.descuento .va { color: var(--danger); }
.pasos li.destacado {
  background: rgba(10, 127, 95, .1); margin-inline: -.55rem; padding-inline: .55rem;
  border-radius: 10px; border-bottom: 0;
}

.bloque-sub { margin-top: 1.15rem; }
.bloque-sub > h4 { font-size: .92rem; margin-bottom: .2rem; }

.leyes { list-style: none; padding: 0; margin-top: .6rem; display: grid; gap: .5rem; }
.leyes li {
  font-size: .84rem; color: var(--ink-soft); padding-left: .85rem;
  border-left: 3px solid var(--accent-lt); line-height: 1.5;
}
.leyes cite { display: block; font-style: normal; font-weight: 650; color: var(--accent-dk); font-size: .79rem; margin-top: .15rem; }

.acciones { display: flex; flex-wrap: wrap; gap: .55rem; padding: 0 1.15rem 1.25rem; }
.acciones .boton-sec { flex: 1 1 auto; min-width: 128px; justify-content: center; }
/* Compartir va primero y a todo el ancho: es el canal que más tráfico trae. */
.acciones .boton-wa {
  flex: 1 1 100%; background: #25d366; color: #06331b; gap: .5rem;
  box-shadow: 0 1px 2px rgba(10, 22, 40, .08), 0 8px 18px -10px #25d366;
}
.acciones .boton-wa:hover { background: #1fc25d; }
.acciones .boton-wa svg { flex: none; }

.aviso-calc {
  display: flex; gap: .6rem; align-items: flex-start;
  margin: .95rem 0 0; padding: .75rem .85rem; border-radius: var(--radius-sm);
  background: var(--warn-bg); border: 1px solid var(--warn-line);
  color: var(--warn); font-size: .82rem; line-height: 1.5;
}
.aviso-calc svg { flex: none; margin-top: .15rem; }

.privacidad {
  display: flex; gap: .45rem; align-items: center; justify-content: center;
  margin-top: .85rem; font-size: .82rem; color: var(--ink-faint);
}

.contador {
  display: flex; flex-wrap: wrap; align-items: center; gap: .5rem .9rem;
  margin-top: 1rem; padding: .85rem 1rem;
  background: var(--bg-soft); border: 1px solid var(--line); border-radius: var(--radius-sm);
}
.contador .dias {
  font-size: 1.6rem; font-weight: 800; color: var(--accent-dk); letter-spacing: -.035em;
  font-variant-numeric: tabular-nums;
}
.contador .txt { font-size: .87rem; color: var(--ink-soft); line-height: 1.4; }

/* =============================================================
   9. Tarjetas
   ============================================================= */
.pais-cab { display: flex; align-items: center; gap: .65rem; margin-block: 2.6rem .55rem; }
.pais-cab .bandera { width: 30px; height: 21px; border-radius: 4px; }
.pais-cab h2 { margin: 0; }

.rejilla { display: grid; gap: .75rem; margin-top: 1.1rem; }
.tarjeta {
  position: relative; display: block; padding: 1.05rem 2.2rem 1.05rem 1.05rem;
  border: 1px solid var(--line); border-radius: var(--radius); background: var(--bg); color: var(--ink);
  box-shadow: var(--sombra-xs);
  transition: border-color .18s var(--ease-out), box-shadow .18s var(--ease-out), transform .18s var(--ease-out);
}
.tarjeta::after {
  content: "→"; position: absolute; right: 1rem; top: 1.02rem;
  color: var(--ink-faint); font-size: .95rem;
  transition: transform .18s var(--ease-out), color .18s var(--ease-out);
}
.tarjeta:hover {
  text-decoration: none; border-color: var(--accent);
  box-shadow: var(--sombra); transform: translateY(-2px);
}
.tarjeta:hover::after { transform: translateX(3px); color: var(--accent); }
.tarjeta b { display: block; font-size: 1rem; letter-spacing: -.015em; }
.tarjeta span { display: block; font-size: .86rem; color: var(--ink-soft); margin-top: .22rem; }

/* =============================================================
   10. Contenido
   ============================================================= */
.contenido { margin-top: 2rem; }
.contenido p, .contenido li { color: var(--ink-soft); }
.contenido p { margin-top: .75rem; max-width: 70ch; }
.contenido ul, .contenido ol { margin: .75rem 0 0 1.15rem; display: grid; gap: .38rem; max-width: 70ch; }
.pasos3 { list-style: none; counter-reset: p3; display: grid; gap: .65rem; margin: 1.1rem 0 0; padding: 0; }
.pasos3 li {
  counter-increment: p3; position: relative; padding: .95rem 1rem .95rem 3.1rem;
  background: var(--bg-soft); border: 1px solid var(--line-soft);
  border-radius: var(--radius); font-size: .93rem; color: var(--ink-soft);
}
.pasos3 li::before {
  content: counter(p3); position: absolute; left: 1rem; top: .92rem;
  width: 1.55rem; height: 1.55rem; border-radius: 50%; background: var(--accent); color: #fff;
  font-size: .8rem; font-weight: 700; display: grid; place-items: center;
}
.pasos3 b { color: var(--ink); }

.ejemplo {
  margin-top: 1.1rem; padding: 1.1rem; border: 1px solid var(--line);
  border-left: 4px solid var(--accent); border-radius: var(--radius); background: var(--bg-soft);
}
.ejemplo h3 { margin-top: 0; }
.ejemplo table { width: 100%; border-collapse: collapse; margin-top: .7rem; font-size: .9rem; }
.ejemplo td { padding: .4rem 0; border-bottom: 1px dashed var(--line); }
.ejemplo td:last-child { text-align: right; font-variant-numeric: tabular-nums; font-weight: 650; white-space: nowrap; }
.ejemplo tr:last-child td { border-bottom: 0; border-top: 2px solid var(--accent); font-weight: 700; padding-top: .55rem; }

.faq { margin-top: 1.1rem; display: grid; gap: .5rem; }
.faq details {
  border: 1px solid var(--line); border-radius: var(--radius); background: var(--bg);
  transition: border-color .18s var(--ease-out);
}
.faq details[open] { border-color: var(--accent-lt); }
.faq summary { padding: .9rem 1rem; font-weight: 650; cursor: pointer; font-size: .95rem; }
.faq summary::marker { color: var(--accent); }
.faq div { padding: 0 1rem 1rem; color: var(--ink-soft); font-size: .93rem; }

.datos { width: 100%; border-collapse: collapse; margin-top: 1rem; font-size: .9rem; }
.datos th, .datos td { padding: .6rem .65rem; text-align: left; border-bottom: 1px solid var(--line); }
.datos th { font-size: .78rem; text-transform: uppercase; letter-spacing: .05em; color: var(--ink-faint); }
.datos td:last-child { text-align: right; font-variant-numeric: tabular-nums; }

/* =============================================================
   11. Producto
   ============================================================= */
.producto {
  margin-top: 2.4rem; padding: 1.4rem; border-radius: var(--radius-lg);
  border: 1px solid var(--line);
  background: linear-gradient(145deg, var(--bg-tint), var(--bg) 60%);
  display: grid; gap: .75rem; box-shadow: var(--sombra-xs);
}
.producto .precio { font-size: 1.5rem; font-weight: 800; letter-spacing: -.03em; }
.producto .precio s { font-size: .95rem; font-weight: 500; color: var(--ink-faint); margin-left: .4rem; }
.producto ul { margin: 0; padding-left: 1.15rem; font-size: .9rem; color: var(--ink-soft); display: grid; gap: .28rem; }
.producto .boton { max-width: 340px; }

/* =============================================================
   12. Pie
   ============================================================= */
.pie { margin-top: 3.4rem; border-top: 1px solid var(--line); background: var(--bg-soft); padding: 2rem 0 2.6rem; }
.pie-rejilla { display: grid; gap: 1.5rem; }
.pie h4 { font-size: .76rem; text-transform: uppercase; letter-spacing: .08em; color: var(--ink-faint); margin: 0 0 .55rem; }
.pie ul { list-style: none; padding: 0; display: grid; gap: .32rem; }
.pie a { font-size: .88rem; color: var(--ink-soft); }
.pie a:hover { color: var(--accent-dk); }
.pie-legal { margin-top: 1.8rem; padding-top: 1.15rem; border-top: 1px solid var(--line); font-size: .8rem; color: var(--ink-faint); max-width: 78ch; }

/* =============================================================
   13. Anuncios (marcadores vacíos — el dueño pega su código después)
   ============================================================= */
.anuncio {
  display: grid; place-items: center; margin: 1.6rem 0;
  border: 1px dashed #c9d5e2; border-radius: var(--radius);
  background: var(--bg-soft);
  color: #a3b2c3; font-size: .7rem; letter-spacing: .16em; text-transform: uppercase; font-weight: 600;
}
.anuncio-horizontal { min-height: 100px; }
.anuncio-contenido { min-height: 250px; }
.anuncio-lateral { min-height: 600px; margin: 0; }
.lateral { display: none; }

.aviso-esquina {
  position: fixed; right: 12px; bottom: 12px; z-index: 60; width: min(300px, calc(100vw - 24px));
  background: var(--bg); border: 1px solid var(--line); border-radius: var(--radius);
  box-shadow: var(--sombra-lg); padding: .75rem; display: none; grid-template-columns: 1fr auto; gap: .5rem;
}
.aviso-esquina.visible { display: grid; }
.aviso-esquina .anuncio { margin: 0; min-height: 84px; width: 100%; }
.aviso-esquina .cerrar { align-self: start; color: var(--ink-faint); font-size: 1.1rem; line-height: 1; padding: .15rem .3rem; }

dialog.modal {
  border: 0; border-radius: var(--radius-lg); padding: 0; max-width: min(420px, calc(100vw - 32px));
  box-shadow: var(--sombra-lg); color: var(--ink); background: var(--bg);
}
dialog.modal::backdrop { background: rgba(10, 22, 40, .55); backdrop-filter: blur(2px); }
.modal-cuerpo { padding: 1.15rem; display: grid; gap: .85rem; }
.modal-cabeza { display: flex; align-items: flex-start; gap: 1rem; }
.modal-cabeza h3 { margin: 0; font-size: 1.05rem; }
.modal-cabeza .cerrar { margin-left: auto; font-size: 1.4rem; line-height: 1; color: var(--ink-faint); padding: 0 .2rem; }
.cuenta-atras { font-size: .92rem; color: var(--ink-soft); text-align: center; margin: 0; }
.cuenta-atras b { color: var(--accent-dk); font-size: 1.1rem; font-variant-numeric: tabular-nums; }

/* =============================================================
   14. Responsive
   ============================================================= */
/* En el móvil el titular y la respuesta deben dejar sitio a la calculadora:
   el botón de calcular tiene que verse sin desplazar la pantalla. */
@media (max-width: 539px) {
  h1 { font-size: 1.54rem; line-height: 1.12; }
  .sub { font-size: .95rem; }
  .sub.respuesta { font-size: .9rem; line-height: 1.48; }
  .campo input, .campo select { padding-block: .72rem; padding-inline: .8rem; }
  .boton { padding: .85rem 1.1rem; }
  .campos { gap: .72rem; }
  .herramienta-cuerpo { padding: 1rem; }
  .migas { padding-top: .5rem; }
  .campo .pista { line-height: 1.4; }
}

@media (min-width: 540px) {
  :root { --gutter: 1.4rem; }
  .dos { grid-template-columns: 1fr 1fr; }
  .herramienta-cuerpo, .resultado-cabeza, .partes, .acciones,
  .desglose > summary, .desglose-cuerpo { padding-inline: 1.5rem; }
  .rejilla { grid-template-columns: repeat(2, 1fr); }
}
@media (min-width: 960px) {
  .pie-rejilla { grid-template-columns: repeat(4, 1fr); }
  .rejilla { grid-template-columns: repeat(3, 1fr); }
}
@media (min-width: 1100px) {
  .con-lateral { display: grid; grid-template-columns: minmax(0, 1fr) 300px; gap: 2.4rem; align-items: start; }
  .lateral { display: block; position: sticky; top: 78px; }
}

/* =============================================================
   15. Modo oscuro
   ============================================================= */
@media (prefers-color-scheme: dark) {
  :root {
    color-scheme: dark;
    --ink:        #e8eef6;
    --ink-soft:   #a9bacd;
    --ink-faint:  #7f91a6;
    --line:       #22324a;
    --line-soft:  #1a2739;
    --bg:         #0c1522;
    --bg-soft:    #111c2c;
    --bg-tint:    #0f2320;
    --bg-hero-a:  #0f2320;
    --bg-hero-b:  #0c1522;

    --accent:     #22a37c;
    --accent-dk:  #4ac79c;
    --accent-lt:  #16382e;
    --accent-glow: rgba(34, 163, 124, .2);
    --warn:       #f0c173;
    --warn-bg:    #2a2113;
    --warn-line:  #4a3a1c;
    --danger:     #f4789c;

    --sombra-xs: 0 1px 2px rgba(0, 0, 0, .3);
    --sombra:    0 1px 2px rgba(0, 0, 0, .3), 0 10px 26px -14px rgba(0, 0, 0, .7);
    --sombra-md: 0 2px 4px rgba(0, 0, 0, .35), 0 18px 40px -20px rgba(0, 0, 0, .8);
    --sombra-lg: 0 4px 8px rgba(0, 0, 0, .4), 0 34px 70px -28px rgba(0, 0, 0, .9);
  }
  .cabecera { background: rgba(12, 21, 34, .82); }
  .campo input, .campo select { background: var(--bg-soft); border-color: #2c3e58; }
  .campo-moneda { background: var(--bg-soft); border-color: #2c3e58; }
  .campo-moneda:hover { border-color: #3a506f; }
  .campo-moneda .simbolo { background: rgba(255, 255, 255, .05); border-right-color: #2c3e58; }
  .campo input:hover, .campo select:hover { border-color: #3a506f; }
  .boton { color: #04150f; }
  .boton-sec { color: var(--ink); }
  .boton-sec:hover { background: #1a2739; }
  .partes li { background: rgba(255, 255, 255, .045); border-color: rgba(255, 255, 255, .07); }
  .pasos li.destacado { background: rgba(34, 163, 124, .15); }
  .anuncio { border-color: #2a3b55; color: #5e7490; }
  .bandera { box-shadow: inset 0 0 0 1px rgba(255, 255, 255, .2); }
  .tarjeta:hover, .chip:hover { border-color: var(--accent-dk); }
}

/* =============================================================
   16. Impresión
   ============================================================= */
@media print {
  .cabecera, .anuncio, .lateral, .aviso-esquina, .acciones, .producto,
  .pie, .migas, .contador, .hero-sello, .chips, .garantias { display: none !important; }
  .herramienta { border: 0; box-shadow: none; }
  .hero { background: none; padding: 0; border: 0; }
  .desglose-cuerpo { display: block !important; }
  body { font-size: 12pt; }
}

/* =============================================================
   17. Reduced-motion (sólo lo intrusivo)
   ============================================================= */
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .tarjeta:hover, .chip:hover, .boton:hover { transform: none; }
}