/* =============================================================================
   Calculá tu Sueldo — hoja de estilos única.
   Tema oscuro permanente. Carbón cálido + verde dinero + relieve neón medido.
   La información sigue siendo la protagonista: el neón acentúa, no decora.

   1. Tokens            5. Componentes        9.  Gráficos
   2. Reset y base      6. Formularios        10. Publicidad
   3. Utilidades        7. Resultados         11. Responsive
   4. Layout            8. Contenido y SEO    12. Impresión / reduced-motion
   ============================================================================= */

/* =============================================================================
   1. TOKENS

   Un solo tema, oscuro. No hay variante clara ni conmutador: la marca es
   oscura y así se ve igual en todos los dispositivos. La única excepción es
   la impresión (sección 12), que invierte los tokens para no gastar tinta.
   ============================================================================= */
:root {
  color-scheme: dark;

  /* Neutros — carbón cálido, no azulado */
  --bg:          #1a1a18;
  --surface:     #262624;
  --surface-2:   #2e2e2b;
  --surface-3:   #383835;
  --border:      #3c3c38;
  --border-soft: #2f2f2c;
  --ink:         #f3f2ee;
  --ink-2:       #d6d3cb;
  --ink-3:       #b3afa5;
  --ink-4:       #a19d93;

  /* Acento único: verde dinero */
  --accent:      #2fd98a;
  --accent-ink:  #7cf0b6;
  --accent-soft: #13301f;
  --accent-line: #2f6b4a;
  --accent-rgb:  47, 217, 138;
  /* Texto que va ENCIMA del verde (botones sólidos) */
  --on-accent:   #0b1a12;

  /* Semánticos */
  --pos:         #4fdc99;
  --pos-soft:    #14301f;
  --neg:         #ff8a80;
  --neg-soft:    #331a17;
  --warn:        #f0bb5f;
  --warn-soft:   #322612;

  /* Series de gráficos — distinguibles entre sí sobre carbón */
  --c1: #2fd98a;
  --c2: #ff8a80;
  --c3: #7fb2ff;
  --c4: #f0bb5f;
  --c5: #c9a2f5;
  --c6: #56cddc;

  /* Tipografía */
  --sans: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  --mono: "IBM Plex Mono", ui-monospace, SFMono-Regular, "SF Mono", Menlo, Consolas, monospace;

  /* Métrica */
  --gutter: 1.15rem;
  --maxw: 1180px;
  --maxw-narrow: 760px;
  --radius: 12px;
  --radius-sm: 8px;
  --radius-lg: 18px;

  --shadow-sm: 0 1px 2px rgba(0, 0, 0, .32);
  --shadow:    0 2px 10px rgba(0, 0, 0, .38);
  --shadow-lg: 0 10px 32px rgba(0, 0, 0, .5);

  /* Relieve neón — se compone en tres capas para que se vea encendido
     sin convertirse en una mancha: aro nítido, halo cercano, halo lejano. */
  --neon-edge:   0 0 0 1px rgba(var(--accent-rgb), .55);
  --neon-near:   0 0 14px rgba(var(--accent-rgb), .28);
  --neon-far:    0 0 34px rgba(var(--accent-rgb), .14);
  --neon-lip:    inset 0 1px 0 rgba(255, 255, 255, .16);
  --neon:        var(--neon-lip), var(--neon-edge), var(--neon-near);
  --neon-strong: var(--neon-lip), var(--neon-edge), 0 0 20px rgba(var(--accent-rgb), .42), var(--neon-far);

  --ease-out: cubic-bezier(0.16, 1, 0.3, 1);
  --header-h: 60px;
}

/* =============================================================================
   2. RESET Y BASE
   ============================================================================= */
*, *::before, *::after { box-sizing: border-box; margin: 0; }

html {
  -webkit-text-size-adjust: 100%;
  tab-size: 2;
  scroll-behavior: smooth;
  scroll-padding-top: calc(var(--header-h) + 12px);
}

body {
  font-family: var(--sans);
  font-size: 16px;
  line-height: 1.6;
  color: var(--ink);
  background: var(--bg);
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  overflow-x: clip;
  font-variant-numeric: tabular-nums;
}

img, svg, video { display: block; max-width: 100%; }
img { height: auto; }
button { font: inherit; color: inherit; cursor: pointer; border: 0; background: none; }
a { color: var(--accent); text-decoration: none; }
a:hover { text-decoration: underline; }
p { text-wrap: pretty; }

h1, h2, h3, h4 {
  text-wrap: balance;
  line-height: 1.15;
  letter-spacing: -0.02em;
  font-weight: 650;
  color: var(--ink);
}
h1 { font-size: clamp(1.65rem, 1.1rem + 2.4vw, 2.5rem); letter-spacing: -0.03em; }
h2 { font-size: clamp(1.3rem, 1rem + 1.2vw, 1.75rem); margin-block: 0 .6rem; }
h3 { font-size: 1.12rem; }
h4 { font-size: 1rem; }

::selection { background: var(--accent); color: var(--on-accent); }

:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
  border-radius: 4px;
}

hr { border: 0; border-top: 1px solid var(--border); margin: 2rem 0; }

/* =============================================================================
   3. UTILIDADES
   ============================================================================= */
.sr-only {
  position: absolute !important; width: 1px; height: 1px;
  padding: 0; margin: -1px; overflow: hidden;
  clip: rect(0, 0, 0, 0); white-space: nowrap; border: 0;
}

.skip-link {
  position: fixed; top: -100px; left: 1rem; z-index: 999;
  padding: .6rem 1rem; background: var(--accent); color: var(--on-accent);
  border-radius: var(--radius-sm); font-weight: 600;
  box-shadow: var(--neon-strong);
}
.skip-link:focus { top: .75rem; }

.container { width: 100%; max-width: var(--maxw); margin-inline: auto; padding-inline: var(--gutter); }
.container--narrow { max-width: var(--maxw-narrow); }

.muted { color: var(--ink-3); }
.small { font-size: .875rem; }
.tiny  { font-size: .8rem; }
.mono  { font-family: var(--mono); font-variant-numeric: tabular-nums; }
.center { text-align: center; }
.nowrap { white-space: nowrap; }
.pos { color: var(--pos); }
.neg { color: var(--neg); }

.stack > * + * { margin-top: 1rem; }
.stack-lg > * + * { margin-top: 2rem; }

section { scroll-margin-top: calc(var(--header-h) + 16px); }

/* =============================================================================
   4. LAYOUT: header, footer, breadcrumbs
   ============================================================================= */
.site-header {
  position: sticky; top: 0; z-index: 60;
  background: color-mix(in srgb, var(--surface) 88%, transparent);
  backdrop-filter: saturate(1.4) blur(10px);
  border-bottom: 1px solid var(--border);
}
.site-header__inner {
  display: flex; align-items: center; gap: .75rem;
  min-height: var(--header-h);
}

.brand {
  display: inline-flex; align-items: baseline; gap: .28rem;
  font-weight: 720; font-size: 1.06rem; letter-spacing: -0.035em;
  color: var(--ink); text-decoration: none; flex: 0 0 auto;
}
.brand:hover { text-decoration: none; }
.brand b { color: var(--accent); font-weight: 720; text-shadow: 0 0 10px rgba(var(--accent-rgb), .3); }

.site-nav { margin-left: auto; }
.site-nav ul { display: flex; gap: .1rem; list-style: none; padding: 0; margin: 0; }
.site-nav a {
  display: block; padding: .45rem .62rem; border-radius: var(--radius-sm);
  color: var(--ink-2); font-size: .9rem; font-weight: 520; text-decoration: none;
  transition: background .18s var(--ease-out), color .18s var(--ease-out);
}
.site-nav a:hover { background: var(--surface-2); color: var(--ink); text-decoration: none; }
.site-nav a.is-active {
  color: var(--accent-ink); background: var(--accent-soft);
  box-shadow: inset 0 0 0 1px rgba(var(--accent-rgb), .35);
}

.nav-toggle {
  display: none; margin-left: auto;
  width: 40px; height: 40px; border-radius: var(--radius-sm);
  align-items: center; justify-content: center; border: 1px solid var(--border);
  background: var(--surface);
}
.nav-toggle span { display: block; width: 17px; height: 1.6px; background: var(--ink); position: relative; }
.nav-toggle span::before, .nav-toggle span::after {
  content: ""; position: absolute; left: 0; width: 17px; height: 1.6px; background: var(--ink);
  transition: transform .22s var(--ease-out);
}
.nav-toggle span::before { top: -5.5px; }
.nav-toggle span::after  { top:  5.5px; }
.site-header.is-open .nav-toggle span { background: transparent; }
.site-header.is-open .nav-toggle span::before { transform: translateY(5.5px) rotate(45deg); }
.site-header.is-open .nav-toggle span::after  { transform: translateY(-5.5px) rotate(-45deg); }

/* Breadcrumbs */
.breadcrumb { padding-block: .9rem .2rem; }
.breadcrumb ol { display: flex; flex-wrap: wrap; gap: .3rem; list-style: none; padding: 0; margin: 0; font-size: .82rem; }
.breadcrumb li + li::before { content: "›"; color: var(--ink-4); margin-right: .3rem; }
.breadcrumb a { color: var(--ink-3); }
.breadcrumb [aria-current] { color: var(--ink-2); font-weight: 550; }

/* Footer */
.site-footer {
  margin-top: 3.5rem; padding-block: 2.5rem 1.5rem;
  background: var(--surface); border-top: 1px solid var(--border);
}
.footer-grid {
  display: grid; gap: 1.75rem;
  grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
}
.footer-col h3 {
  font-size: .78rem; text-transform: uppercase; letter-spacing: .08em;
  color: var(--ink-4); font-weight: 620; margin-bottom: .6rem;
}
.footer-col ul { list-style: none; padding: 0; margin: 0; display: grid; gap: .32rem; }
.footer-col a { color: var(--ink-2); font-size: .875rem; }
.footer-col a:hover { color: var(--accent); }

.footer-bottom {
  margin-top: 2rem; padding-top: 1.25rem; border-top: 1px solid var(--border-soft);
  display: flex; flex-wrap: wrap; gap: .75rem 1.5rem; align-items: baseline;
  font-size: .82rem; color: var(--ink-3);
}

.disclaimer-block {
  margin-top: 1.25rem; padding: .9rem 1rem;
  background: var(--surface-2); border: 1px solid var(--border-soft);
  border-radius: var(--radius-sm);
  font-size: .8rem; line-height: 1.55; color: var(--ink-3);
}

/* =============================================================================
   5. COMPONENTES
   ============================================================================= */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: .45rem;
  padding: .72rem 1.15rem; border-radius: var(--radius-sm);
  font-weight: 600; font-size: .95rem; text-decoration: none;
  border: 1px solid transparent; cursor: pointer;
  transition: background .18s var(--ease-out), border-color .18s var(--ease-out),
              transform .18s var(--ease-out), color .18s var(--ease-out);
}
.btn:hover { text-decoration: none; }
.btn:active { transform: translateY(1px); }

/* Botón principal: verde sólido con relieve neón. El degradado es de 6% de
   luminancia — suficiente para que la pieza tenga volumen, no un adorno. */
.btn--primary {
  background: linear-gradient(180deg, #3ce398 0%, var(--accent) 55%, #22c179 100%);
  color: var(--on-accent);
  border-color: rgba(var(--accent-rgb), .6);
  box-shadow: var(--neon);
  transition: background .18s var(--ease-out), box-shadow .22s var(--ease-out),
              transform .18s var(--ease-out);
}
.btn--primary:hover { background: linear-gradient(180deg, #56ecaa 0%, #35e194 55%, #27cd83 100%); box-shadow: var(--neon-strong); }
.btn--primary:active { box-shadow: var(--neon-edge), inset 0 2px 6px rgba(0, 0, 0, .28); }

/* Contorno neón sin relleno: para acciones secundarias que igual quieren peso. */
.btn--neon {
  background: rgba(var(--accent-rgb), .06); color: var(--accent-ink);
  border-color: rgba(var(--accent-rgb), .45);
  box-shadow: 0 0 0 1px rgba(var(--accent-rgb), .16), inset 0 0 18px rgba(var(--accent-rgb), .07);
}
.btn--neon:hover {
  background: rgba(var(--accent-rgb), .12); border-color: rgba(var(--accent-rgb), .75);
  box-shadow: var(--neon-edge), var(--neon-near), inset 0 0 20px rgba(var(--accent-rgb), .1);
}

.btn--ghost { background: var(--surface); color: var(--ink); border-color: var(--border); }
.btn--ghost:hover {
  background: var(--surface-2); border-color: rgba(var(--accent-rgb), .5);
  box-shadow: 0 0 12px rgba(var(--accent-rgb), .12);
}

.btn--quiet { background: transparent; color: var(--ink-2); border-color: var(--border); font-weight: 550; }
.btn--quiet:hover { background: var(--surface-2); border-color: var(--accent-line); color: var(--ink); }

.btn--sm { padding: .45rem .78rem; font-size: .85rem; }
.btn--block { width: 100%; }

.btn-icon {
  display: inline-flex; align-items: center; justify-content: center;
  width: 38px; height: 38px; border-radius: var(--radius-sm);
  border: 1px solid var(--border); background: var(--surface); color: var(--ink-3);
  flex: 0 0 auto;
}
.btn-icon:hover { color: var(--neg); border-color: var(--neg); background: var(--neg-soft); }

.ico { width: 1.05em; height: 1.05em; flex: 0 0 auto; }

.card {
  background: var(--surface); border: 1px solid var(--border);
  border-radius: var(--radius); padding: 1.25rem;
}
.card--pad-lg { padding: 1.5rem; }

.pill {
  display: inline-flex; align-items: center; gap: .3rem;
  padding: .18rem .55rem; border-radius: 100px;
  font-size: .74rem; font-weight: 600; letter-spacing: .01em;
  background: var(--surface-2); color: var(--ink-3); border: 1px solid var(--border-soft);
}
.pill--accent { background: var(--accent-soft); color: var(--accent-ink); border-color: var(--accent-line); }
.pill--pos { background: var(--pos-soft); color: var(--pos); border-color: transparent; }
.pill--neg { background: var(--neg-soft); color: var(--neg); border-color: transparent; }
.pill--warn { background: var(--warn-soft); color: var(--warn); border-color: transparent; }

/* Badge de fuente de datos */
.src-badge {
  display: inline-flex; align-items: flex-start; gap: .4rem;
  font-size: .77rem; line-height: 1.45; color: var(--ink-3);
  padding: .35rem .6rem; border-radius: var(--radius-sm);
  background: var(--surface-2); border: 1px solid var(--border-soft);
}
.src-badge .ico { width: .95em; height: .95em; margin-top: .18em; }
.src-badge a { color: var(--ink-2); text-decoration: underline; text-underline-offset: 2px; }
.src-badge--static, .src-badge--live, .src-badge--cache { color: var(--ink-3); }
.src-badge--stale, .src-badge--pending, .src-badge--unavailable {
  background: var(--warn-soft); border-color: transparent; color: var(--warn);
}
.src-badge--stale a, .src-badge--pending a { color: var(--warn); }

/* Notas / advertencias */
.notes { list-style: none; padding: 0; margin: 0; display: grid; gap: .5rem; }
.notes__item {
  display: flex; gap: .5rem; align-items: flex-start;
  font-size: .85rem; line-height: 1.55; color: var(--ink-2);
  padding: .6rem .75rem; background: var(--surface-2);
  border-radius: var(--radius-sm); border: 1px solid var(--border-soft);
}
.notes__item .ico { color: var(--ink-4); margin-top: .2em; }

.callout {
  padding: .9rem 1rem; border-radius: var(--radius-sm);
  border: 1px solid var(--border); background: var(--surface-2);
  font-size: .9rem; line-height: 1.6;
}
.callout--warn { background: var(--warn-soft); border-color: transparent; color: var(--warn); }
.callout--accent { background: var(--accent-soft); border-color: var(--accent-line); }
.callout strong { color: inherit; }

/* Toast */
.toast {
  position: fixed; left: 50%; bottom: 1.25rem; transform: translate(-50%, 16px);
  background: var(--ink); color: var(--bg);
  padding: .6rem 1rem; border-radius: 100px; font-size: .875rem; font-weight: 550;
  opacity: 0; pointer-events: none; z-index: 200;
  transition: opacity .22s var(--ease-out), transform .22s var(--ease-out);
  box-shadow: var(--shadow-lg);
}
.toast.is-visible { opacity: 1; transform: translate(-50%, 0); }

/* Buscador */
.search { position: relative; }
.search__field {
  display: flex; align-items: center; gap: .5rem;
  background: var(--surface); border: 1px solid var(--border);
  border-radius: var(--radius-sm); padding: 0 .7rem;
  transition: border-color .18s var(--ease-out), box-shadow .18s var(--ease-out);
}
.search:focus-within .search__field { border-color: var(--accent); box-shadow: 0 0 0 3px var(--accent-soft); }
.search__field .ico { color: var(--ink-4); }
.search input {
  flex: 1; border: 0; background: none; padding: .7rem 0;
  font: inherit; font-size: .95rem; color: var(--ink); outline: none;
}
.search-results {
  position: absolute; top: calc(100% + .35rem); left: 0; right: 0; z-index: 70;
  list-style: none; margin: 0; padding: .3rem;
  background: var(--surface); border: 1px solid var(--border);
  border-radius: var(--radius); box-shadow: var(--shadow-lg);
  max-height: 60vh; overflow-y: auto;
}
.search-results a {
  display: grid; gap: .1rem; padding: .55rem .65rem;
  border-radius: var(--radius-sm); text-decoration: none;
}
.search-results a:hover, .search-results a:focus-visible { background: var(--surface-2); text-decoration: none; }
.search-results strong { color: var(--ink); font-size: .92rem; font-weight: 600; }
.search-results span { color: var(--ink-3); font-size: .82rem; }
.search-empty { padding: .7rem .65rem; color: var(--ink-3); font-size: .87rem; }

/* Tarjetas de herramienta */
.tool-grid { display: grid; gap: .75rem; grid-template-columns: 1fr; }
.tool-card {
  display: grid; gap: .18rem; position: relative;
  padding: 1rem 2.4rem 1rem 1rem;
  background: var(--surface); border: 1px solid var(--border);
  border-radius: var(--radius); text-decoration: none;
  transition: border-color .18s var(--ease-out), background .18s var(--ease-out), transform .18s var(--ease-out);
}
.tool-card:hover {
  border-color: var(--accent-line); background: var(--surface);
  text-decoration: none; transform: translateY(-1px);
}
.tool-card__cat {
  font-size: .68rem; text-transform: uppercase; letter-spacing: .09em;
  font-weight: 650; color: var(--ink-4);
}
.tool-card__name { font-size: 1rem; font-weight: 620; color: var(--ink); letter-spacing: -.015em; }
.tool-card__desc { font-size: .85rem; color: var(--ink-3); line-height: 1.5; }
.tool-card__go {
  position: absolute; right: 1rem; top: 50%; transform: translateY(-50%);
  color: var(--ink-4); transition: color .18s var(--ease-out), transform .18s var(--ease-out);
}
.tool-card:hover .tool-card__go { color: var(--accent); transform: translate(2px, -50%); }

/* Enlaces rápidos del hero */
.quick-links { display: flex; flex-wrap: wrap; gap: .45rem; }
.quick-links a {
  padding: .4rem .75rem; border-radius: 100px; font-size: .85rem; font-weight: 550;
  background: var(--surface); border: 1px solid var(--border); color: var(--ink-2);
  text-decoration: none; transition: all .18s var(--ease-out);
}
.quick-links a:hover { border-color: var(--accent); color: var(--accent); text-decoration: none; }

/* Compartir */
.share { display: flex; flex-wrap: wrap; align-items: center; gap: .4rem; }
.share__label {
  display: inline-flex; align-items: center; gap: .35rem;
  font-size: .82rem; color: var(--ink-3); font-weight: 550; margin-right: .2rem;
}
.share__btn {
  padding: .35rem .7rem; border-radius: 100px; font-size: .82rem; font-weight: 550;
  border: 1px solid var(--border); background: var(--surface); color: var(--ink-2);
  transition: all .18s var(--ease-out);
}
.share__btn:hover { border-color: var(--accent); color: var(--accent); }

/* =============================================================================
   6. FORMULARIOS
   ============================================================================= */
.tool-card-main {
  background: var(--surface); border: 1px solid var(--border);
  border-radius: var(--radius-lg); box-shadow: var(--shadow);
  overflow: hidden;
}
.tool-card-main__body { padding: 1.15rem; }
.tool-card-main__foot {
  padding: .85rem 1.15rem; background: var(--surface-2);
  border-top: 1px solid var(--border-soft);
}

fieldset { border: 0; padding: 0; margin: 0; }
legend {
  font-size: .78rem; text-transform: uppercase; letter-spacing: .08em;
  font-weight: 650; color: var(--ink-4); padding: 0; margin-bottom: .6rem;
}

.field { display: grid; gap: .3rem; position: relative; min-width: 0; }
.field--grow { flex: 1 1 auto; min-width: 0; }

label, .label {
  font-size: .855rem; font-weight: 550; color: var(--ink-2);
  display: block;
}
.hint { font-size: .78rem; color: var(--ink-4); line-height: 1.45; }

input[type="text"], input[type="number"], input[type="email"], input[type="date"],
input[type="month"], select, textarea {
  width: 100%; padding: .68rem .78rem;
  font: inherit; font-size: .95rem; color: var(--ink);
  background: var(--surface); border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  transition: border-color .16s var(--ease-out), box-shadow .16s var(--ease-out);
  -webkit-appearance: none; appearance: none;
}
select {
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%23a19d93' stroke-width='2' stroke-linecap='round'%3E%3Cpath d='m6 9 6 6 6-6'/%3E%3C/svg%3E");
  background-repeat: no-repeat; background-position: right .6rem center; background-size: 16px;
  padding-right: 2rem;
}
input:focus, select:focus, textarea:focus {
  outline: none; border-color: var(--accent);
  box-shadow: 0 0 0 3px var(--accent-soft);
}
input::placeholder { color: var(--ink-4); }
input[type="range"] { -webkit-appearance: auto; appearance: auto; padding: 0; border: 0; background: none; }

/* Envoltorio del control. Es ÉL quien lleva el borde, el fondo y el anillo de
   foco; el input va transparente y sin borde. Prefijo, input y sufijo son
   hermanos dentro de un flex.

   Antes el prefijo iba en position:absolute y el input compensaba con un
   padding-left fijo de 1.9rem. Ese número alcanzaba para "$" pero no para
   "US$": el símbolo quedaba quieto y los números se le montaban encima.
   Con flex el prefijo ocupa el ancho que necesite, mida lo que mida, y el
   input arranca siempre después. No hay padding que calcular a mano. */
.field__control {
  display: flex; align-items: stretch; min-width: 0;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  transition: border-color .16s var(--ease-out), box-shadow .16s var(--ease-out);
}
.field__control:focus-within {
  border-color: var(--accent);
  box-shadow: 0 0 0 3px rgba(var(--accent-rgb), .18), 0 0 14px rgba(var(--accent-rgb), .12);
}
.field__control > input,
.field__control > select,
.field__control > textarea {
  flex: 1 1 auto; min-width: 0; width: auto;
  background: transparent; border: 0; border-radius: inherit;
}
.field__control > input:focus,
.field__control > select:focus,
.field__control > textarea:focus { box-shadow: none; border-color: transparent; }

.field__prefix, .field__suffix {
  display: flex; align-items: center; flex: 0 0 auto;
  color: var(--ink-3); line-height: 1; white-space: nowrap;
  pointer-events: none; -webkit-user-select: none; user-select: none;
}
.field__prefix { padding-left: .78rem; font-size: .95rem; }
.field__suffix { padding-right: .78rem; font-size: .9rem; }

/* Con prefijo o sufijo al lado, el input no repite el padding lateral. */
.field__prefix + input, .field__prefix + select { padding-left: .3rem; }
.field--suffix .field__control > input { padding-right: .3rem; }

/* Campo principal grande */
.field--hero label { font-size: .95rem; font-weight: 600; color: var(--ink); }
.field--hero .field__control { border-radius: var(--radius); }
.field--hero .field__control:focus-within {
  box-shadow: 0 0 0 3px rgba(var(--accent-rgb), .2), var(--neon-near), var(--neon-far);
}
.field--hero input {
  font-size: 1.5rem; font-weight: 620; padding: .8rem .9rem;
  letter-spacing: -.02em;
}
.field--hero .field__prefix { font-size: 1.4rem; padding-left: .85rem; }
.field--hero .field__prefix + input { padding-left: .38rem; }

.grid-fields { display: grid; gap: .85rem; grid-template-columns: 1fr; }
.grid-fields--2 { grid-template-columns: 1fr; }
.grid-fields--3 { grid-template-columns: 1fr; }

.checkbox, .radio {
  display: flex; align-items: center; gap: .5rem;
  font-size: .88rem; color: var(--ink-2); cursor: pointer; font-weight: 450;
}
.checkbox input, .radio input {
  width: 17px; height: 17px; flex: 0 0 auto; accent-color: var(--accent); cursor: pointer;
}
.checkbox--tight { font-size: .8rem; white-space: nowrap; }

.chips { display: flex; flex-wrap: wrap; gap: .4rem; }
.chip {
  display: inline-flex; align-items: center; gap: .35rem;
  padding: .42rem .72rem; border-radius: 100px;
  border: 1px solid var(--border); background: var(--surface);
  font-size: .85rem; color: var(--ink-2); cursor: pointer;
  transition: all .16s var(--ease-out);
}
.chip input { position: absolute; opacity: 0; width: 0; height: 0; }
.chip:has(input:checked) {
  border-color: rgba(var(--accent-rgb), .6); background: var(--accent-soft);
  color: var(--accent-ink); font-weight: 600;
  box-shadow: 0 0 10px rgba(var(--accent-rgb), .18);
}
.chip:has(input:focus-visible) { outline: 2px solid var(--accent); outline-offset: 2px; }

/* Repetidores (agregar ingreso / descuento) */
.repeater__list { display: grid; gap: .6rem; }
.repeater__row {
  display: flex; gap: .5rem; align-items: flex-end; flex-wrap: wrap;
  padding: .6rem; background: var(--surface-2);
  border: 1px solid var(--border-soft); border-radius: var(--radius-sm);
}
.repeater__row .field--grow { flex: 1 1 40%; min-width: 140px; }
.repeater__row .field--money { flex: 1 1 145px; min-width: 120px; }
.repeater__row .checkbox--tight { margin-bottom: .55rem; }
.repeater__row .btn-icon { margin-bottom: .1rem; }
.repeater__add { margin-top: .6rem; }

details.adv {
  border: 1px solid var(--border); border-radius: var(--radius-sm);
  background: var(--surface); overflow: hidden;
}
details.adv > summary {
  padding: .7rem .85rem; cursor: pointer; font-weight: 570; font-size: .9rem;
  color: var(--ink-2); list-style: none; display: flex; align-items: center; gap: .45rem;
}
details.adv > summary::-webkit-details-marker { display: none; }
details.adv > summary::before {
  content: "+"; font-family: var(--mono); color: var(--ink-4); font-size: 1.05rem; line-height: 1;
}
details.adv[open] > summary::before { content: "−"; }
details.adv[open] > summary { border-bottom: 1px solid var(--border-soft); }
details.adv > .adv__body { padding: .95rem .85rem; display: grid; gap: .95rem; }

/* =============================================================================
   7. RESULTADOS
   ============================================================================= */
/* La tarjeta de resultado es la pieza más importante de cada herramienta:
   lleva un halo verde tenue para separarla del resto sin gritar. */
.result {
  background: var(--surface); border: 1px solid var(--accent-line);
  border-radius: var(--radius-lg); overflow: hidden;
  box-shadow: 0 0 0 1px rgba(var(--accent-rgb), .08), 0 0 28px rgba(var(--accent-rgb), .09), var(--shadow);
}
.result__head {
  padding: 1.35rem 1.15rem 1.15rem;
  background: linear-gradient(to bottom, var(--accent-soft), transparent);
  border-bottom: 1px solid var(--border-soft);
}
.result__label {
  font-size: .76rem; text-transform: uppercase; letter-spacing: .1em;
  font-weight: 650; color: var(--accent-ink);
}
.result__value {
  font-size: clamp(2rem, 1.2rem + 4vw, 3rem); font-weight: 700;
  letter-spacing: -.035em; line-height: 1.05; color: var(--ink);
  margin-top: .15rem; font-variant-numeric: tabular-nums;
}
.result__sub { font-size: .9rem; color: var(--ink-3); margin-top: .3rem; }
.result__body { padding: 1.15rem; display: grid; gap: 1.15rem; }

.figures { display: grid; gap: .5rem; }
.figure-row {
  display: flex; justify-content: space-between; align-items: baseline; gap: 1rem;
  padding: .55rem 0; border-bottom: 1px dashed var(--border);
  font-size: .93rem;
}
.figure-row:last-child { border-bottom: 0; }
.figure-row__label { color: var(--ink-2); min-width: 0; }
.figure-row__value {
  font-weight: 620; font-variant-numeric: tabular-nums;
  min-width: 0; text-align: right; overflow-wrap: anywhere;
}
.figure-row--total {
  border-top: 2px solid var(--ink); border-bottom: 0;
  padding-top: .7rem; margin-top: .2rem; font-size: 1.05rem;
}
.figure-row--total .figure-row__value { font-size: 1.2rem; font-weight: 700; }
.figure-row--sub { padding-left: 1rem; font-size: .87rem; color: var(--ink-3); border-bottom-style: dotted; }

.stat-grid { display: grid; gap: .6rem; grid-template-columns: repeat(2, 1fr); }
.stat {
  padding: .8rem .85rem; background: var(--surface-2);
  border: 1px solid var(--border-soft); border-radius: var(--radius-sm);
}
.stat__label { font-size: .74rem; text-transform: uppercase; letter-spacing: .07em; color: var(--ink-4); font-weight: 620; }
.stat__value { font-size: 1.15rem; font-weight: 660; letter-spacing: -.02em; margin-top: .12rem; font-variant-numeric: tabular-nums; }
.stat__note { font-size: .76rem; color: var(--ink-4); margin-top: .1rem; }
.stat--pos .stat__value { color: var(--pos); }
.stat--neg .stat__value { color: var(--neg); }
.stat--accent { background: var(--accent-soft); border-color: var(--accent-line); }

/* Traza: ver cómo se calculó */
.trace { list-style: none; padding: 0; margin: 0; counter-reset: step; display: grid; gap: .1rem; }
.trace__step {
  padding: .6rem 0 .6rem 1.6rem; position: relative;
  border-bottom: 1px solid var(--border-soft);
}
.trace__step:last-child { border-bottom: 0; }
.trace__step::before {
  counter-increment: step; content: counter(step);
  position: absolute; left: 0; top: .68rem;
  width: 19px; height: 19px; border-radius: 50%;
  background: var(--surface-3); color: var(--ink-3);
  font-size: .68rem; font-weight: 650; display: grid; place-items: center;
  font-family: var(--mono);
}
.trace__step--resultado::before { background: var(--accent); color: var(--on-accent); }
.trace__head { display: flex; justify-content: space-between; gap: .8rem; align-items: baseline; }
.trace__label { font-weight: 570; font-size: .9rem; }
.trace__amount { font-variant-numeric: tabular-nums; font-weight: 640; white-space: nowrap; font-size: .92rem; }
.trace__amount--resta { color: var(--neg); }
.trace__amount--suma { color: var(--ink); }
.trace__amount--resultado { color: var(--accent); font-size: 1.02rem; }
.trace__detail { font-size: .82rem; color: var(--ink-3); line-height: 1.5; margin-top: .18rem; }
.trace__step--resultado .trace__label { font-weight: 660; }
.trace-caption {
  margin: 1.25rem 0 .3rem; font-weight: 640; font-size: .95rem; color: var(--ink);
  letter-spacing: -.01em;
}
.trace__step--nota { background: var(--surface-2); border-radius: var(--radius-sm); padding-left: 1.6rem; padding-right: .6rem; }

/* Tabla comparativa */
.table-wrap { overflow-x: auto; -webkit-overflow-scrolling: touch; max-width: 100%; }
table.data {
  width: 100%; border-collapse: collapse; font-size: .875rem;
  min-width: 480px;
}
table.data th, table.data td {
  padding: .6rem .7rem; text-align: right; border-bottom: 1px solid var(--border-soft);
  font-variant-numeric: tabular-nums; white-space: nowrap;
}
table.data th:first-child, table.data td:first-child {
  text-align: left; font-weight: 550; color: var(--ink-2); white-space: normal; min-width: 130px;
}
table.data thead th {
  font-size: .78rem; text-transform: uppercase; letter-spacing: .05em;
  color: var(--ink-4); font-weight: 650; border-bottom: 1px solid var(--border);
  position: sticky; top: 0; background: var(--surface);
}
table.data tbody tr:hover { background: var(--surface-2); }
table.data td.is-best { color: var(--pos); font-weight: 680; }
table.data tfoot td { border-top: 2px solid var(--ink); border-bottom: 0; font-weight: 660; padding-top: .7rem; }

/* =============================================================================
   8. CONTENIDO Y SEO
   ============================================================================= */
.hero { padding-block: 2.25rem 1.5rem; }
.hero h1 { margin-bottom: .55rem; }
.hero__sub { font-size: 1.03rem; color: var(--ink-2); max-width: 62ch; line-height: 1.55; }
.hero__ctas { display: flex; flex-wrap: wrap; gap: .6rem; margin-top: 1.15rem; }

.page-head { padding-block: .5rem 1.15rem; }
.page-head h1 { margin-bottom: .4rem; }
.page-head__sub { font-size: .98rem; color: var(--ink-2); max-width: 62ch; }

.prose { max-width: 68ch; }
.prose h2 { margin-top: 2rem; }
.prose h3 { margin-top: 1.4rem; margin-bottom: .35rem; }
.prose p { margin-bottom: .9rem; color: var(--ink-2); }
.prose ul, .prose ol { margin: 0 0 1rem 1.15rem; color: var(--ink-2); }
.prose li { margin-bottom: .35rem; }
.prose strong { color: var(--ink); font-weight: 620; }
.prose code {
  font-family: var(--mono); font-size: .86em; padding: .12em .35em;
  background: var(--surface-2); border-radius: 4px; border: 1px solid var(--border-soft);
}

.faq { display: grid; gap: .5rem; }
.faq details {
  background: var(--surface); border: 1px solid var(--border);
  border-radius: var(--radius-sm); overflow: hidden;
}
.faq summary {
  padding: .85rem 1rem; cursor: pointer; font-weight: 570; font-size: .95rem;
  color: var(--ink); list-style: none; display: flex; gap: .6rem; align-items: flex-start;
}
.faq summary::-webkit-details-marker { display: none; }
.faq summary::after {
  content: "+"; margin-left: auto; color: var(--ink-4);
  font-family: var(--mono); font-size: 1.1rem; line-height: 1.3; flex: 0 0 auto;
}
.faq details[open] summary::after { content: "−"; }
.faq details[open] summary { border-bottom: 1px solid var(--border-soft); }
.faq__answer { padding: .9rem 1rem; font-size: .9rem; color: var(--ink-2); line-height: 1.62; }
.faq__answer p + p { margin-top: .65rem; }

.example-box {
  background: var(--surface-2); border: 1px solid var(--border-soft);
  border-left: 3px solid var(--accent); border-radius: var(--radius-sm);
  padding: .95rem 1.05rem; font-size: .89rem; line-height: 1.6;
}
.example-box h4 { font-size: .82rem; text-transform: uppercase; letter-spacing: .07em; color: var(--ink-4); margin-bottom: .4rem; }

.sources-list { list-style: none; padding: 0; margin: 0; display: grid; gap: .6rem; }
.sources-list li {
  padding: .75rem .85rem; background: var(--surface); border: 1px solid var(--border);
  border-radius: var(--radius-sm); font-size: .86rem; line-height: 1.55;
}
.sources-list strong { display: block; color: var(--ink); margin-bottom: .1rem; }
.sources-list .meta { color: var(--ink-4); font-size: .8rem; }

.section-head { margin-bottom: 1rem; }
.section-head h2 { margin-bottom: .25rem; }
.section-head p { color: var(--ink-3); font-size: .92rem; max-width: 60ch; }

.audience-grid { display: grid; gap: .75rem; grid-template-columns: 1fr; }
.audience {
  padding: 1.05rem; background: var(--surface); border: 1px solid var(--border);
  border-radius: var(--radius);
}
.audience h3 { font-size: .98rem; margin-bottom: .25rem; }
.audience p { font-size: .87rem; color: var(--ink-3); line-height: 1.55; margin-bottom: .6rem; }
.audience a { font-size: .87rem; font-weight: 570; }

/* =============================================================================
   9. GRÁFICOS
   ============================================================================= */
.bars { display: grid; gap: .85rem; }
.bars__row { display: grid; gap: .25rem; }
.bars__label { display: flex; justify-content: space-between; gap: 1rem; font-size: .88rem; }
.bars__label span:first-child { color: var(--ink-2); font-weight: 550; }
.bars__value { font-weight: 640; font-variant-numeric: tabular-nums; }
.bars__track { height: 12px; background: var(--surface-3); border-radius: 100px; overflow: hidden; }
.bars__fill {
  height: 100%; width: var(--w, 0%); border-radius: 100px;
  transition: width .5s var(--ease-out);
}
.bars__fill--neutral { background: var(--ink-3); }
.bars__fill--accent  { background: var(--accent); }
.bars__fill--pos     { background: var(--pos); }
.bars__fill--neg     { background: var(--neg); }
.bars__pct { font-size: .76rem; color: var(--ink-4); }

.donut-wrap { display: grid; gap: 1rem; grid-template-columns: 1fr; align-items: center; }
.donut { width: 100%; max-width: 190px; margin-inline: auto; transform: rotate(-90deg); }
.donut__bg { stroke: var(--surface-3); }
.donut__seg { transition: stroke-dasharray .5s var(--ease-out); }
.donut__seg--c1 { stroke: var(--c1); } .donut__seg--c2 { stroke: var(--c2); }
.donut__seg--c3 { stroke: var(--c3); } .donut__seg--c4 { stroke: var(--c4); }
.donut__seg--c5 { stroke: var(--c5); } .donut__seg--c6 { stroke: var(--c6); }
.donut-legend { list-style: none; padding: 0; margin: 0; display: grid; gap: .38rem; font-size: .85rem; }
.donut-legend li { display: flex; align-items: center; gap: .45rem; color: var(--ink-2); }
.donut-legend b { margin-left: auto; font-variant-numeric: tabular-nums; font-weight: 620; color: var(--ink); }

.dot { width: 9px; height: 9px; border-radius: 50%; flex: 0 0 auto; background: var(--ink-3); }
.dot--c1 { background: var(--c1); } .dot--c2 { background: var(--c2); }
.dot--c3 { background: var(--c3); } .dot--c4 { background: var(--c4); }
.dot--c5 { background: var(--c5); } .dot--c6 { background: var(--c6); }
.dot--nominal { background: var(--c1); } .dot--real { background: var(--c3); }
.dot--s0 { background: var(--c1); } .dot--s1 { background: var(--c3); } .dot--s2 { background: var(--c4); }

.chart-wrap { display: grid; gap: .6rem; }
.chart { width: 100%; height: auto; overflow: visible; }
.chart__grid { stroke: var(--border); stroke-width: 1; stroke-dasharray: 3 4; }
.chart__tick { fill: var(--ink-4); font-size: 11px; font-family: var(--sans); }
.chart__line { fill: none; stroke-width: 2.2; stroke-linecap: round; stroke-linejoin: round; }
.chart__line--nominal, .chart__line--s0 { stroke: var(--c1); }
.chart__line--real, .chart__line--s1    { stroke: var(--c3); }
.chart__line--s2 { stroke: var(--c4); }
.chart-legend { list-style: none; padding: 0; margin: 0; display: flex; flex-wrap: wrap; gap: .9rem; font-size: .84rem; color: var(--ink-2); }
.chart-legend li { display: flex; align-items: center; gap: .4rem; }

/* Recibo simulado */
.receipt {
  background: var(--surface); border: 1px solid var(--border);
  border-radius: var(--radius); overflow: hidden; font-size: .875rem;
}
.receipt__watermark {
  background: var(--warn-soft); color: var(--warn);
  padding: .55rem 1rem; font-size: .78rem; font-weight: 680;
  text-transform: uppercase; letter-spacing: .08em; text-align: center;
}
.receipt__head { padding: 1rem; border-bottom: 1px solid var(--border); display: grid; gap: .3rem; }
.receipt__title { font-weight: 680; font-size: 1rem; }
.receipt__meta { font-size: .8rem; color: var(--ink-3); display: flex; flex-wrap: wrap; gap: .2rem 1rem; }
.receipt__section { padding: .85rem 1rem; border-bottom: 1px solid var(--border-soft); }
.receipt__section h4 {
  font-size: .74rem; text-transform: uppercase; letter-spacing: .09em;
  color: var(--ink-4); margin-bottom: .5rem; font-weight: 660;
}
.receipt__line { display: flex; justify-content: space-between; gap: 1rem; padding: .28rem 0; }
.receipt__line span:last-child { font-variant-numeric: tabular-nums; font-weight: 570; }
.receipt__totals { padding: .95rem 1rem; background: var(--surface-2); display: grid; gap: .4rem; }
.receipt__total { display: flex; justify-content: space-between; gap: 1rem; font-weight: 620; }
.receipt__total--final { font-size: 1.15rem; font-weight: 720; padding-top: .5rem; border-top: 2px solid var(--ink); }

/* Comparador */
.offers-grid { display: grid; gap: .85rem; grid-template-columns: 1fr; }
.offer-card { border: 1px solid var(--border); border-radius: var(--radius); background: var(--surface); overflow: hidden; }
.offer-card__head {
  padding: .7rem .9rem; background: var(--surface-2); border-bottom: 1px solid var(--border-soft);
  display: flex; align-items: center; gap: .6rem;
}
.offer-card__head input { flex: 1; border: 0; background: none; font-weight: 620; font-size: .95rem; padding: .2rem 0; }
.offer-card__head input:focus { box-shadow: none; border-bottom: 1px solid var(--accent); }
.offer-card__body { padding: .9rem; display: grid; gap: .75rem; }

.score-card {
  display: grid; gap: .5rem; padding: 1rem;
  border: 1px solid var(--border); border-radius: var(--radius); background: var(--surface);
}
.score-card--winner { border-color: var(--pos); background: var(--pos-soft); }
.score-card__top { display: flex; justify-content: space-between; align-items: baseline; gap: .8rem; }
.score-card__name { font-weight: 650; font-size: 1rem; }
.score-card__score { font-size: 1.6rem; font-weight: 720; letter-spacing: -.03em; font-variant-numeric: tabular-nums; }
.score-card--winner .score-card__score { color: var(--pos); }
.score-bar { height: 7px; background: var(--surface-3); border-radius: 100px; overflow: hidden; }
.score-bar__fill { height: 100%; background: var(--accent); border-radius: 100px; width: var(--w, 0%); transition: width .5s var(--ease-out); }
.score-card--winner .score-bar__fill { background: var(--pos); }
.score-breakdown { list-style: none; padding: 0; margin: 0; display: grid; gap: .22rem; font-size: .8rem; }
.score-breakdown li { display: flex; justify-content: space-between; gap: .8rem; color: var(--ink-3); }
.score-breakdown b { font-variant-numeric: tabular-nums; color: var(--ink-2); font-weight: 600; }

/* Historial / escenarios */
.history-list { list-style: none; padding: 0; margin: 0; display: grid; gap: .5rem; }
.history-item {
  display: flex; align-items: center; gap: .7rem; padding: .7rem .85rem;
  background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius-sm);
}
.history-item__main { flex: 1; min-width: 0; display: grid; gap: .1rem; }
.history-item__title { font-weight: 570; font-size: .9rem; }
.history-item__meta { font-size: .78rem; color: var(--ink-4); }
.history-item__value { font-weight: 660; font-variant-numeric: tabular-nums; white-space: nowrap; }

.empty-state {
  padding: 2rem 1.25rem; text-align: center; color: var(--ink-3);
  background: var(--surface-2); border: 1px dashed var(--border);
  border-radius: var(--radius); font-size: .92rem;
}

/* =============================================================================
   10. PUBLICIDAD (placeholders — nunca scripts de terceros desde el código)
   ============================================================================= */
.ad-slot {
  display: grid; place-items: center; margin-block: 1.75rem;
  border: 1px dashed var(--border); border-radius: var(--radius-sm);
  background: var(--surface-2); min-height: 100px; overflow: hidden;
}
.ad-slot__label {
  font-size: .68rem; text-transform: uppercase; letter-spacing: .14em;
  color: var(--ink-4); font-weight: 600;
}

/* =============================================================================
   11. RESPONSIVE
   ============================================================================= */
@media (max-width: 899px) {
  .nav-toggle { display: inline-flex; }
  .site-nav {
    position: absolute; top: 100%; left: 0; right: 0;
    background: var(--surface); border-bottom: 1px solid var(--border);
    padding: .5rem var(--gutter) 1rem; margin-left: 0;
    display: none; box-shadow: var(--shadow-lg);
  }
  .site-header.is-open .site-nav { display: block; }
  .site-nav ul { flex-direction: column; gap: .05rem; }
  .site-nav a { padding: .65rem .5rem; font-size: .98rem; }
}

@media (min-width: 540px) {
  .tool-grid { grid-template-columns: repeat(2, 1fr); }
  .grid-fields--2 { grid-template-columns: repeat(2, 1fr); }
  .stat-grid { grid-template-columns: repeat(2, 1fr); }
  .audience-grid { grid-template-columns: repeat(2, 1fr); }
}

@media (min-width: 720px) {
  :root { --gutter: 1.5rem; }
  .grid-fields--3 { grid-template-columns: repeat(3, 1fr); }
  .donut-wrap { grid-template-columns: 190px 1fr; }
  .stat-grid { grid-template-columns: repeat(4, 1fr); }
  .tool-card-main__body { padding: 1.5rem; }
  .result__head { padding: 1.65rem 1.5rem 1.35rem; }
  .result__body { padding: 1.5rem; }
  .offers-grid { grid-template-columns: repeat(2, 1fr); }
}

@media (min-width: 960px) {
  .tool-grid { grid-template-columns: repeat(3, 1fr); }
  .audience-grid { grid-template-columns: repeat(4, 1fr); }
  .layout-2col {
    display: grid; grid-template-columns: minmax(0, 1.05fr) minmax(0, 1fr);
    gap: 1.5rem; align-items: start;
  }
  .layout-2col--sticky > :last-child { position: sticky; top: calc(var(--header-h) + 1rem); }
  .offers-grid { grid-template-columns: repeat(3, 1fr); }
  .hero { padding-block: 3.25rem 2rem; }
}

@media (min-width: 1280px) {
  .tool-grid--4 { grid-template-columns: repeat(4, 1fr); }
}

/* -----------------------------------------------------------------------------
   Teléfono. Es por donde entra la mayoría, así que acá se afina de verdad:
   dedos en vez de puntero y una pantalla que no se puede desperdiciar.
   -------------------------------------------------------------------------- */
@media (max-width: 599px) {
  /* Safari en iOS hace zoom al enfocar cualquier campo de menos de 16px y
     después deja la página corrida. 16px exactos lo evitan. */
  input[type="text"], input[type="number"], input[type="email"], input[type="date"],
  input[type="month"], select, textarea { font-size: 16px; padding-block: .78rem; }
  .field--hero input { font-size: 1.6rem; }
  .field__prefix { font-size: 1rem; }

  /* Objetivos táctiles: 44px es el mínimo cómodo para un pulgar. */
  .btn { min-height: 46px; padding-inline: 1rem; }
  .btn--sm { min-height: 40px; }
  .btn-icon { width: 44px; height: 44px; }
  .chip { padding: .55rem .9rem; }
  .checkbox input, .radio input { width: 20px; height: 20px; }
  .site-nav a { min-height: 44px; display: flex; align-items: center; }

  /* La acción principal ocupa el ancho: es lo que se busca al llegar. */
  .tool-card-main__foot .btn--primary,
  .actions > .btn--primary:only-child { width: 100%; }

  /* Menos aire lateral desperdiciado y titulares que no rompen palabras. */
  .card, .card--pad-lg { padding: 1.05rem; }
  .result__body { padding: 1rem; }
  h1 { letter-spacing: -.025em; }

  /* En pantalla angosta el halo grande solo emborrona: se recorta. */
  .result { box-shadow: 0 0 0 1px rgba(var(--accent-rgb), .08), var(--shadow); }

  /* Etiqueta y valor comparten línea mientras entren; si no, el valor baja. */
  .figure-row { flex-wrap: wrap; }
  .figure-row__value { text-align: left; }
}

/* Muy angosto: 320px */
@media (max-width: 359px) {
  :root { --gutter: .85rem; }
  .stat-grid { grid-template-columns: 1fr; }
  .repeater__row .field--money { flex: 1 1 100%; }
  .result__value { font-size: 1.85rem; }
}

/* =============================================================================
   12. IMPRESIÓN Y REDUCED-MOTION
   ============================================================================= */
@media print {
  :root {
    --bg: #fff; --surface: #fff; --surface-2: #fff; --surface-3: #eee;
    --ink: #000; --ink-2: #222; --ink-3: #444; --ink-4: #666;
    --border: #bbb; --border-soft: #ddd; --accent: #000; --accent-soft: #fff;
    --accent-line: #999; --accent-ink: #000; --on-accent: #fff; --accent-rgb: 0, 0, 0;
    --pos: #0b5c3a; --neg: #92211a; --warn: #6b4600;
    --neon-edge: none; --neon-near: none; --neon-far: none;
    --neon-lip: none; --neon: none; --neon-strong: none;
  }
  body { background: #fff; font-size: 11pt; }
  .site-header, .site-footer, .ad-slot, .share, .no-print,
  .nav-toggle, .search, .btn, .quick-links, .breadcrumb { display: none !important; }
  .print-only { display: block !important; }
  .card, .result, .tool-card-main, .receipt { border: 1px solid #bbb; box-shadow: none; break-inside: avoid; }
  details > summary { display: none; }
  details > * { display: block !important; }
  .receipt__watermark { background: #eee !important; color: #000 !important; border: 1px solid #999; }
  a[href]::after { content: ""; }
  h1, h2, h3 { break-after: avoid; }
  .trace__step, .figure-row { break-inside: avoid; }

  /* Ámbito de impresión: cuando el usuario pide el PDF de un recibo o de una
     comparación, imprimimos solo esa pieza. main.js marca a los hermanos del
     elemento con .print-hidden para que no ocupen páginas en blanco. */
  html.print-scope .print-hidden { display: none !important; }
  html.print-scope [data-print-scope] { margin: 0; }
  html.print-scope .container { padding-inline: 0; max-width: none; }
}

@page { margin: 1.6cm; }

.print-only { display: none; }

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .bars__fill, .score-bar__fill, .donut__seg, .toast { transition: none; }
  *, *::before, *::after { animation-duration: .01ms !important; animation-iteration-count: 1 !important; }
}