/* ==========================================================================
   Contra el Ruido — hoja de estilo unica
   Sin framework, sin build, sin dependencias. Un solo archivo.
   Tokens en :root; modo claro por prefers-color-scheme.
   ========================================================================== */

:root {
  /* --- superficie --- */
  --bg:            #0a0b0d;
  --bg-2:          #101216;
  --bg-3:          #171a20;
  --line:          #23272f;
  --line-soft:     #1a1d23;

  /* --- texto --- */
  --fg:            #e9eaec;
  --fg-2:          #b4b9c1;
  --fg-3:          #7d848f;

  /* --- marca --- */
  --signal:        #e0a33e;   /* la senal: oro sobrio */
  --signal-dim:    rgba(224, 163, 62, .12);
  --up:            #56a17f;   /* acierto */
  --down:          #c0574f;   /* error / ruido */
  --up-dim:        rgba(86, 161, 127, .14);
  --down-dim:      rgba(192, 87, 79, .14);

  /* --- tipografia --- */
  --display: "Fraunces", "Iowan Old Style", Georgia, "Times New Roman", serif;
  --sans: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  --mono: ui-monospace, "SF Mono", "Cascadia Mono", Menlo, Consolas, monospace;

  /* --- ritmo --- */
  --gutter: 20px;
  --max: 1120px;
  --max-read: 660px;
  --radius: 4px;
}

@media (prefers-color-scheme: light) {
  :root:not([data-theme="dark"]) {
    --bg:          #fbfaf7;
    --bg-2:        #ffffff;
    --bg-3:        #f2efe9;
    --line:        #ddd8ce;
    --line-soft:   #e9e5dd;
    --fg:          #14161a;
    --fg-2:        #464b54;
    --fg-3:        #6e747e;
    --signal:      #9a6a12;
    --signal-dim:  rgba(154, 106, 18, .10);
    --up:          #2f7a57;
    --down:        #a93f37;
    --up-dim:      rgba(47, 122, 87, .10);
    --down-dim:    rgba(169, 63, 55, .10);
  }
}

:root[data-theme="light"] {
  --bg:          #fbfaf7;
  --bg-2:        #ffffff;
  --bg-3:        #f2efe9;
  --line:        #ddd8ce;
  --line-soft:   #e9e5dd;
  --fg:          #14161a;
  --fg-2:        #464b54;
  --fg-3:        #6e747e;
  --signal:      #9a6a12;
  --signal-dim:  rgba(154, 106, 18, .10);
  --up:          #2f7a57;
  --down:        #a93f37;
  --up-dim:      rgba(47, 122, 87, .10);
  --down-dim:    rgba(169, 63, 55, .10);
}

/* --------------------------------------------------------------- base --- */

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

html {
  -webkit-text-size-adjust: 100%;
  scroll-behavior: smooth;
}
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { animation-duration: .001ms !important; transition-duration: .001ms !important; }
}

body {
  margin: 0;
  background: var(--bg);
  color: var(--fg);
  font-family: var(--sans);
  font-size: 17px;
  line-height: 1.62;
  font-feature-settings: "kern" 1, "liga" 1, "cv11" 1;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

h1, h2, h3, h4 {
  font-family: var(--display);
  font-weight: 600;
  line-height: 1.1;
  letter-spacing: -.015em;
  margin: 0 0 .5em;
  font-variation-settings: "SOFT" 0, "WONK" 0, "opsz" 40;
}

h1 { font-size: clamp(2.3rem, 6.4vw, 4.1rem); letter-spacing: -.03em; }
h2 { font-size: clamp(1.65rem, 3.7vw, 2.4rem); letter-spacing: -.02em; }
h3 { font-size: clamp(1.14rem, 2vw, 1.34rem); }
h4 { font-size: 1.02rem; font-family: var(--sans); font-weight: 650; letter-spacing: -.005em; }

p { margin: 0 0 1.05em; }
p:last-child { margin-bottom: 0; }

a { color: inherit; text-decoration-color: var(--signal); text-underline-offset: .18em; }
a:hover { color: var(--signal); }

strong { font-weight: 650; color: var(--fg); }
small { font-size: .84rem; }
hr { border: 0; border-top: 1px solid var(--line); margin: 3rem 0; }

::selection { background: var(--signal); color: #0a0b0d; }

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

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

/* ------------------------------------------------------------ layout --- */

.wrap {
  width: 100%;
  max-width: var(--max);
  margin-inline: auto;
  padding-inline: var(--gutter);
}
.wrap--read { max-width: var(--max-read); }

.section { padding-block: clamp(3.2rem, 8vw, 6rem); }
.section--tight { padding-block: clamp(2.2rem, 5vw, 3.6rem); }
.section--alt { background: var(--bg-2); border-block: 1px solid var(--line-soft); }

.stack > * + * { margin-top: 1.05em; }
.lede {
  font-size: clamp(1.08rem, 2.2vw, 1.28rem);
  line-height: 1.55;
  color: var(--fg-2);
  max-width: 44ch;
}

.eyebrow {
  font-family: var(--mono);
  font-size: .72rem;
  letter-spacing: .16em;
  text-transform: uppercase;
  color: var(--signal);
  margin: 0 0 1rem;
  display: flex;
  align-items: center;
  gap: .7rem;
}
.eyebrow::after {
  content: "";
  flex: 1;
  height: 1px;
  background: var(--line);
}

/* skip link */
.skip {
  position: absolute; left: -9999px; top: 0;
  background: var(--signal); color: #0a0b0d;
  padding: .7rem 1.1rem; font-weight: 650; z-index: 100;
}
.skip:focus { left: 0; }

/* ----------------------------------------------------------- navbar --- */

.nav {
  position: sticky; top: 0; z-index: 50;
  background: color-mix(in srgb, var(--bg) 88%, transparent);
  backdrop-filter: saturate(160%) blur(12px);
  border-bottom: 1px solid var(--line-soft);
}
.nav__in {
  display: flex; align-items: center; gap: 1.4rem;
  min-height: 62px;
  max-width: var(--max); margin-inline: auto; padding-inline: var(--gutter);
}
.brand {
  display: inline-flex; align-items: center; gap: .6rem;
  font-family: var(--display); font-weight: 600; font-size: 1.06rem;
  letter-spacing: -.02em; text-decoration: none; white-space: nowrap;
}
.brand:hover { color: var(--fg); }
.brand svg { flex: none; }

.nav__links {
  display: flex; align-items: center; gap: 1.3rem;
  margin-left: auto; font-size: .89rem;
}
.nav__links a {
  text-decoration: none; color: var(--fg-2);
  padding-block: .35rem;
  border-bottom: 1.5px solid transparent;
}
.nav__links a:hover { color: var(--fg); }
.nav__links a[aria-current="page"] { color: var(--fg); border-bottom-color: var(--signal); }

.nav__toggle {
  display: none; margin-left: auto;
  background: none; border: 1px solid var(--line); color: var(--fg);
  border-radius: var(--radius); padding: .4rem .6rem; cursor: pointer;
  font: inherit; font-size: .82rem;
}

@media (max-width: 860px) {
  .nav__toggle { display: block; }
  .nav__links {
    display: none;
    position: absolute; inset: 62px 0 auto 0;
    flex-direction: column; align-items: stretch; gap: 0;
    background: var(--bg-2); border-bottom: 1px solid var(--line);
    padding: .4rem var(--gutter) 1rem;
  }
  .nav__links.is-open { display: flex; }
  .nav__links a {
    padding: .75rem 0; border-bottom: 1px solid var(--line-soft);
    font-size: 1rem;
  }
  .nav__links a[aria-current="page"] { border-bottom-color: var(--signal); }
  .nav__links .btn { margin-top: .9rem; text-align: center; }
}

/* ---------------------------------------------------------- botones --- */

.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: .5rem;
  font: inherit; font-size: .93rem; font-weight: 620;
  padding: .74rem 1.3rem;
  border-radius: var(--radius);
  border: 1px solid transparent;
  text-decoration: none; cursor: pointer;
  transition: transform .12s ease, background .16s ease, border-color .16s ease;
  line-height: 1.25;
}
.btn:active { transform: translateY(1px); }

.btn--primary { background: var(--signal); color: #0a0b0d; }
.btn--primary:hover { background: color-mix(in srgb, var(--signal) 84%, #fff); color: #0a0b0d; }

.btn--ghost { border-color: var(--line); color: var(--fg); background: transparent; }
.btn--ghost:hover { border-color: var(--signal); color: var(--fg); background: var(--signal-dim); }

.btn--wide { width: 100%; }
.btn--lg { padding: .95rem 1.7rem; font-size: 1rem; }

.btn[aria-disabled="true"] { opacity: .55; cursor: not-allowed; pointer-events: none; }

.btn-row { display: flex; flex-wrap: wrap; gap: .75rem; margin-top: 1.6rem; }

.arrow { transition: transform .16s ease; }
.btn:hover .arrow { transform: translateX(3px); }

/* ------------------------------------------------------------- hero --- */

.hero { position: relative; padding-block: clamp(3.4rem, 9vw, 7rem) clamp(3rem, 7vw, 5rem); overflow: hidden; }
.hero__grid {
  display: grid; gap: clamp(2rem, 5vw, 4rem);
  grid-template-columns: minmax(0, 1.05fr) minmax(0, .95fr);
  align-items: center;
}
@media (max-width: 900px) { .hero__grid { grid-template-columns: 1fr; } }

.hero h1 .signal { color: var(--signal); }
.hero__note {
  margin-top: 2rem; padding-top: 1.1rem; border-top: 1px solid var(--line);
  font-size: .87rem; color: var(--fg-3); max-width: 48ch;
}

/* grafico ruido/senal */
.noise { width: 100%; height: auto; display: block; }
.noise .ruido { stroke: var(--down); stroke-width: 1.15; fill: none; opacity: .5; }
.noise .senal  { stroke: var(--signal); stroke-width: 2.4; fill: none; stroke-linecap: round; }
.noise .grid   { stroke: var(--line); stroke-width: 1; }
.noise .dot    { fill: var(--signal); }

@media (prefers-reduced-motion: no-preference) {
  .noise .senal { stroke-dasharray: 620; stroke-dashoffset: 620; animation: draw 2.1s .25s ease-out forwards; }
  .noise .ruido { opacity: 0; animation: fadein 1.2s 1.4s ease-out forwards; }
  .noise .dot   { opacity: 0; animation: fadein .5s 2.2s ease-out forwards; }
}
@keyframes draw   { to { stroke-dashoffset: 0; } }
@keyframes fadein { to { opacity: .5; } }
.noise .dot { animation-fill-mode: forwards; }

/* ------------------------------------------------------------ cards --- */

.grid { display: grid; gap: 1.1rem; }
.grid--2 { grid-template-columns: repeat(auto-fit, minmax(280px, 1fr)); }
.grid--3 { grid-template-columns: repeat(auto-fit, minmax(258px, 1fr)); }
.grid--4 { grid-template-columns: repeat(auto-fit, minmax(210px, 1fr)); }

.card {
  background: var(--bg-2);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 1.5rem 1.4rem;
  display: flex; flex-direction: column;
}
.card h3 { margin-bottom: .45rem; }
.card p { color: var(--fg-2); font-size: .95rem; }
.card__foot { margin-top: auto; padding-top: 1.2rem; }

.card--link { text-decoration: none; transition: border-color .16s ease, background .16s ease; }
.card--link:hover { border-color: var(--signal); background: var(--bg-3); color: var(--fg); }

.card__tag {
  font-family: var(--mono); font-size: .68rem; letter-spacing: .13em;
  text-transform: uppercase; color: var(--fg-3);
  margin-bottom: .9rem;
}
.card__price {
  font-family: var(--display); font-size: 1.5rem; font-weight: 600;
  letter-spacing: -.02em; color: var(--fg);
}
.card__price span { font-family: var(--sans); font-size: .82rem; font-weight: 500; color: var(--fg-3); letter-spacing: 0; }

/* ------------------------------------------------------------ plan --- */

.plan {
  background: var(--bg-2); border: 1px solid var(--line);
  border-radius: var(--radius); padding: 1.8rem 1.6rem;
  display: flex; flex-direction: column;
}
.plan--featured { border-color: var(--signal); box-shadow: 0 0 0 1px var(--signal-dim); position: relative; }
.plan__badge {
  position: absolute; top: -.72rem; left: 1.5rem;
  background: var(--signal); color: #0a0b0d;
  font-family: var(--mono); font-size: .66rem; letter-spacing: .12em; text-transform: uppercase;
  padding: .2rem .55rem; border-radius: 2px; font-weight: 600;
}
.plan__name { font-family: var(--sans); font-size: .95rem; font-weight: 650; margin: 0 0 .3rem; }
.plan__amount {
  font-family: var(--display); font-size: 2.9rem; font-weight: 600;
  letter-spacing: -.035em; line-height: 1; margin: .6rem 0 .1rem;
  font-variant-numeric: tabular-nums;
}
.plan__per { color: var(--fg-3); font-size: .87rem; }
.plan__list { list-style: none; margin: 1.4rem 0 0; padding: 0; font-size: .93rem; color: var(--fg-2); }
.plan__list li { position: relative; padding-left: 1.5rem; margin-bottom: .6rem; }
.plan__list li::before {
  content: ""; position: absolute; left: 0; top: .58em;
  width: 8px; height: 8px; border-left: 1.8px solid var(--signal); border-bottom: 1.8px solid var(--signal);
  transform: rotate(-45deg) translateY(-2px);
}
.plan .btn { margin-top: 1.7rem; }

/* -------------------------------------------------------------- big --- */

.figures { display: grid; gap: 1px; background: var(--line); border: 1px solid var(--line); border-radius: var(--radius); overflow: hidden; grid-template-columns: repeat(auto-fit, minmax(160px, 1fr)); }
.figure { background: var(--bg-2); padding: 1.5rem 1.3rem; }
.figure__n {
  font-family: var(--display); font-size: clamp(2rem, 5vw, 2.9rem); font-weight: 600;
  letter-spacing: -.035em; line-height: 1; display: block;
  font-variant-numeric: tabular-nums;
}
.figure__n--signal { color: var(--signal); }
.figure__l { display: block; margin-top: .55rem; font-size: .83rem; color: var(--fg-3); line-height: 1.4; }

/* La cifra unica del track record. Es una sola y grande a proposito: la
   decision de Nico del 2026-09-23 fue resumir y congelar, no desglosar por
   fecha. En movil cae a una columna y el numero baja de tamano solo. */
.gran {
  display: grid; gap: 1.1rem 2rem; align-items: center;
  grid-template-columns: auto minmax(0, 1fr);
  border: 1px solid var(--line); border-left: 3px solid var(--signal);
  border-radius: 0 var(--radius) var(--radius) 0;
  background: var(--bg-2); padding: 1.8rem 1.6rem;
}
.gran__n {
  font-family: var(--display); font-weight: 600; color: var(--signal);
  font-size: clamp(3.8rem, 13vw, 6.4rem); line-height: .86; letter-spacing: -.045em;
  margin: 0; font-variant-numeric: tabular-nums;
}
.gran__n span { font-size: .45em; letter-spacing: -.02em; }
.gran__l { margin: 0; font-size: 1.04rem; color: var(--fg-2); line-height: 1.5; }
.gran__l strong { color: var(--fg); }
.gran__corte {
  margin: .7rem 0 0; font-family: var(--mono); font-size: .76rem; line-height: 1.6;
  letter-spacing: .01em; color: var(--fg-3);
}
.gran__corte strong { color: var(--fg-2); font-weight: 500; }
@media (max-width: 560px) {
  .gran { grid-template-columns: 1fr; gap: .5rem; padding: 1.4rem 1.2rem; }
}

/* ------------------------------------------------------------ tabla --- */

.table-scroll { overflow-x: auto; -webkit-overflow-scrolling: touch; margin-block: 1.4rem; }
table.data {
  width: 100%; border-collapse: collapse; font-size: .89rem;
  font-variant-numeric: tabular-nums; min-width: 520px;
}
table.data th, table.data td { padding: .62rem .8rem; text-align: left; border-bottom: 1px solid var(--line-soft); }
table.data thead th {
  font-family: var(--mono); font-size: .69rem; letter-spacing: .1em; text-transform: uppercase;
  color: var(--fg-3); font-weight: 500; border-bottom-color: var(--line);
}
table.data tbody tr:hover { background: var(--bg-2); }
table.data td.num, table.data th.num { text-align: right; }
.tag-ok   { color: var(--up);   background: var(--up-dim);   padding: .1rem .45rem; border-radius: 2px; font-size: .8rem; font-weight: 600; white-space: nowrap; }
.tag-bad  { color: var(--down); background: var(--down-dim); padding: .1rem .45rem; border-radius: 2px; font-size: .8rem; font-weight: 600; white-space: nowrap; }

/* -------------------------------------------------------- contenido --- */

.prose { max-width: var(--max-read); }
.prose h2 { margin-top: 2.6rem; }
.prose h3 { margin-top: 2rem; }
.prose ul, .prose ol { padding-left: 1.2rem; margin: 0 0 1.05em; color: var(--fg-2); }
.prose li { margin-bottom: .45rem; }
.prose li::marker { color: var(--signal); }

.note {
  border-left: 2px solid var(--signal);
  background: var(--signal-dim);
  padding: 1rem 1.2rem;
  margin: 1.8rem 0;
  font-size: .94rem;
  color: var(--fg-2);
  border-radius: 0 var(--radius) var(--radius) 0;
}
.note strong { color: var(--fg); }
.note--flat { border-left-color: var(--line); background: var(--bg-2); }

.checks { list-style: none; padding: 0; margin: 0; }
.checks li { position: relative; padding-left: 1.7rem; margin-bottom: .75rem; color: var(--fg-2); }
.checks li::before {
  content: ""; position: absolute; left: .1rem; top: .55em;
  width: 9px; height: 9px;
  border-left: 2px solid var(--up); border-bottom: 2px solid var(--up);
  transform: rotate(-45deg);
}
.checks--no li::before {
  border: 0; width: 11px; height: 2px; background: var(--down);
  transform: none; top: .78em; left: .15rem;
}

/* modulos del curso */
.mod { border-top: 1px solid var(--line); padding: 1.3rem 0; display: grid; grid-template-columns: 3.2rem 1fr auto; gap: 1rem; align-items: baseline; }
.mod:last-of-type { border-bottom: 1px solid var(--line); }
.mod__n { font-family: var(--mono); font-size: .8rem; color: var(--signal); }
.mod__t { font-weight: 620; font-size: 1rem; margin: 0 0 .25rem; }
.mod__d { font-size: .9rem; color: var(--fg-3); margin: 0; }
.mod__m { font-family: var(--mono); font-size: .78rem; color: var(--fg-3); white-space: nowrap; }
@media (max-width: 620px) {
  .mod { grid-template-columns: 2.4rem 1fr; }
  .mod__m { grid-column: 2; }
}

/* testimonios */
.quote {
  background: var(--bg-2); border: 1px solid var(--line); border-radius: var(--radius);
  padding: 1.4rem; font-size: .96rem; color: var(--fg-2);
}
.quote p { font-style: italic; }
.quote cite { display: block; margin-top: .8rem; font-style: normal; font-size: .84rem; color: var(--fg-3); }

/* faq */
.faq { border-top: 1px solid var(--line); }
.faq details { border-bottom: 1px solid var(--line); }
.faq summary {
  cursor: pointer; padding: 1.05rem 2rem 1.05rem 0; position: relative;
  font-weight: 620; font-size: 1rem; list-style: none;
}
.faq summary::-webkit-details-marker { display: none; }
.faq summary::after {
  content: "+"; position: absolute; right: .2rem; top: 50%; transform: translateY(-50%);
  color: var(--signal); font-size: 1.3rem; line-height: 1; font-weight: 400;
}
.faq details[open] summary::after { content: "\2212"; }
.faq details > div { padding: 0 0 1.2rem; color: var(--fg-2); font-size: .95rem; max-width: 60ch; }

/* formularios */
.field { display: flex; flex-direction: column; gap: .35rem; margin-bottom: 1rem; }
.field label { font-size: .85rem; font-weight: 600; color: var(--fg-2); }
.field input, .field select, .field textarea {
  font: inherit; font-size: .95rem;
  background: var(--bg); color: var(--fg);
  border: 1px solid var(--line); border-radius: var(--radius);
  padding: .68rem .8rem;
}
.field input:focus, .field textarea:focus, .field select:focus { border-color: var(--signal); outline: none; }
.form-msg { font-size: .88rem; margin-top: .9rem; }
.form-msg[data-state="err"] { color: var(--down); }
.form-msg[data-state="ok"] { color: var(--up); }
.hp { position: absolute; left: -9999px; }

/* resumen de compra */
.receipt { background: var(--bg-2); border: 1px solid var(--line); border-radius: var(--radius); overflow: hidden; }
.receipt__row { display: flex; justify-content: space-between; gap: 1rem; padding: .85rem 1.3rem; border-bottom: 1px solid var(--line-soft); font-size: .94rem; }
.receipt__row:last-child { border-bottom: 0; }
.receipt__row--total { background: var(--bg-3); font-weight: 650; font-size: 1.05rem; }
.receipt__row span:first-child { color: var(--fg-2); }

/* pasos */
.steps { list-style: none; counter-reset: s; padding: 0; margin: 0; }
.steps li { counter-increment: s; position: relative; padding-left: 2.6rem; margin-bottom: 1.3rem; color: var(--fg-2); }
.steps li::before {
  content: counter(s); position: absolute; left: 0; top: -.05em;
  width: 1.75rem; height: 1.75rem; border-radius: 50%;
  border: 1px solid var(--signal); color: var(--signal);
  display: grid; place-items: center;
  font-family: var(--mono); font-size: .78rem;
}
.steps strong { display: block; color: var(--fg); margin-bottom: .1rem; }

/* estado "proximamente" */
.soon {
  border: 1px dashed var(--line); border-radius: var(--radius);
  padding: 1.5rem; background: transparent;
}
.pill {
  display: inline-block; font-family: var(--mono); font-size: .67rem;
  letter-spacing: .13em; text-transform: uppercase;
  border: 1px solid var(--line); color: var(--fg-3);
  padding: .16rem .5rem; border-radius: 2px; vertical-align: middle;
  margin-left: .5rem;
}
.pill--signal { border-color: var(--signal); color: var(--signal); }

/* ------------------------------------------------------ aviso legal --- */

.legal-bar {
  border-top: 1px solid var(--line);
  background: var(--bg-2);
  padding-block: 1.5rem;
  font-size: .8rem;
  line-height: 1.55;
  color: var(--fg-3);
}
.legal-bar p { max-width: 90ch; margin: 0; }
.legal-bar strong { color: var(--fg-2); font-weight: 600; }

/* ----------------------------------------------------------- footer --- */

.foot { border-top: 1px solid var(--line-soft); padding-block: 2.6rem 3.2rem; font-size: .88rem; color: var(--fg-3); }
.foot__grid { display: grid; gap: 2rem; grid-template-columns: minmax(0, 1.4fr) repeat(auto-fit, minmax(130px, 1fr)); }
/* En movil, ese `auto-fit` con minimo de 130px NO cabe: mantiene dos columnas de
   130px y aplasta la primera y la ultima a 11px, con el texto saliendose.
   Medido en el navegador a 375px el 2026-09-23, y medido tambien que NO era el
   largo del texto: con el texto viejo, el nuevo y con una sola letra, la columna
   media 11px igual. Es la plantilla de columnas, no el contenido. */
@media (max-width: 720px) {
  .foot__grid { grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 1.6rem 1.2rem; }
  .foot__grid > :first-child { grid-column: 1 / -1; }
}
@media (max-width: 400px) {
  .foot__grid { grid-template-columns: minmax(0, 1fr); }
}
.foot h4 { font-family: var(--mono); font-size: .68rem; letter-spacing: .14em; text-transform: uppercase; color: var(--fg-3); font-weight: 500; margin-bottom: .9rem; }
.foot ul { list-style: none; margin: 0; padding: 0; }
.foot li { margin-bottom: .5rem; }
.foot a { text-decoration: none; color: var(--fg-2); }
.foot a:hover { color: var(--signal); }
.foot__bottom { margin-top: 2.6rem; padding-top: 1.4rem; border-top: 1px solid var(--line-soft); display: flex; flex-wrap: wrap; gap: 1rem; justify-content: space-between; font-size: .8rem; }

.theme-btn {
  background: none; border: 1px solid var(--line); color: var(--fg-3);
  font: inherit; font-size: .78rem; padding: .3rem .6rem; border-radius: var(--radius);
  cursor: pointer;
}
.theme-btn:hover { color: var(--fg); border-color: var(--signal); }

/* --------------------------------------------------------- utilidad --- */

.u-signal { color: var(--signal); }
.u-muted  { color: var(--fg-3); }
.u-center { text-align: center; }
.u-mono   { font-family: var(--mono); }
.u-mt0 { margin-top: 0; }
.u-mt2 { margin-top: 2rem; }
.u-mt3 { margin-top: 3rem; }
.u-nowrap { white-space: nowrap; }
.visually-hidden {
  position: absolute; width: 1px; height: 1px; overflow: hidden;
  clip: rect(0 0 0 0); clip-path: inset(50%); white-space: nowrap;
}

@media print {
  .nav, .foot, .btn, .noise { display: none !important; }
  body { background: #fff; color: #000; }
}

/* --- casilla de aceptacion de terminos (llamada-pago.html) -------------- */
.acepto {
  display: flex;
  gap: .7rem;
  align-items: flex-start;
  background: var(--bg-2);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 1rem 1.1rem;
  font-size: .9rem;
  line-height: 1.55;
  color: var(--fg-2);
  cursor: pointer;
}
.acepto input[type="checkbox"] {
  flex: 0 0 auto;
  width: 1.15rem;
  height: 1.15rem;
  margin-top: .15rem;
  accent-color: var(--signal);
  cursor: pointer;
}
.acepto strong { color: var(--fg); }
.acepto:focus-within { border-color: var(--signal); }