/* ============================================================
   mi-rfc.com.mx — app.css (rediseño 2026)
   Paleta: A · Cielo luminoso · Tipografía: sistema (cero webfonts)
   Radios: media · Sombras: suave · Logo: cédula + check
   Generado desde el design system aprobado. Mobile-first, AA.
   ============================================================ */

:root {
  /* ---------- Escala celeste  ---------- */
  --celeste-50:  #F0F8FE;
  --celeste-100: #DFF1FC;
  --celeste-200: #B9E3F9;
  --celeste-300: #7CCDF4;
  --celeste-400: #38B6EC;
  --celeste-500: #0E9EDA;
  --celeste-600: #027DBA;
  --celeste-700: #036497;
  --celeste-800: #07557D;
  --celeste-900: #0C4668;

  /* ---------- Rol semántico de marca ---------- */
  --c-primary:        var(--celeste-600); /* CTAs, links — AA sobre blanco */
  --c-primary-hover:  var(--celeste-700);
  --c-primary-soft:   var(--celeste-100); /* fondos suaves, píldora RFC */
  --c-primary-softer: var(--celeste-50);
  --c-primary-border: var(--celeste-200);
  --c-primary-vivid:  var(--celeste-500); /* acentos gráficos, isotipo */

  /* ---------- Acento secundario (cempasúchil, usar con moderación) ---------- */
  --c-accent:      #DE8A18;
  --c-accent-soft: #FCF0DC;

  /* ---------- Neutrales (fríos, entonados con el celeste) ---------- */
  --c-bg:        #F5FAFD;  /* fondo general de página */
  --c-surface:   #FFFFFF;  /* tarjetas */
  --c-ink:       #122A3A;  /* títulos */
  --c-text:      #33495A;  /* cuerpo */
  --c-muted:     #5E7689;  /* secundario / microcopy */
  --c-border:    #D9E5EE;  /* bordes de tarjetas */
  --c-border-2:  #C2D4E1;  /* bordes de inputs (más firmes) */
  --c-footer-bg: #122A3A;  /* footer oscuro */
  --c-footer-ink:#A8C2D4;

  /* ---------- Semánticos ---------- */
  --c-success:      #157A46;
  --c-success-soft: #E4F6EC;
  --c-error:        #C72C2C;
  --c-error-soft:   #FCEAEA;
  --c-warning:      #9A6210;
  --c-warning-soft: #FCF3E0;

  /* ---------- Tipografía ---------- */
  --font-body: system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  --font-head: var(--font-body);
  --font-mono: ui-monospace, "SF Mono", SFMono-Regular, Menlo, Consolas, "Liberation Mono", monospace;

  --fs-12: 0.75rem;
  --fs-14: 0.875rem;
  --fs-15: 0.9375rem;
  --fs-16: 1rem;
  --fs-18: 1.125rem;
  --fs-20: 1.25rem;
  --fs-24: 1.5rem;
  --fs-28: 1.75rem;
  --fs-34: 2.125rem;
  --fs-42: 2.625rem;

  --lh-tight: 1.2;
  --lh-body: 1.65;

  /* ---------- Espaciado ---------- */
  --sp-1: 4px;  --sp-2: 8px;  --sp-3: 12px; --sp-4: 16px;
  --sp-5: 20px; --sp-6: 24px; --sp-8: 32px; --sp-10: 40px;
  --sp-12: 48px; --sp-16: 64px;

  /* ---------- Radios ---------- */
  --r-s: 6px;    /* chips, alerts chicos */
  --r-m: 10px;   /* inputs, botones */
  --r-l: 14px;   /* tarjetas */
  --r-pill: 999px;
  --r-button: var(--r-m);

  /* ---------- Sombras ---------- */
  --shadow-card: 0 1px 2px rgba(12, 42, 64, 0.05), 0 4px 14px rgba(12, 42, 64, 0.06);
  --shadow-card-hover: 0 2px 4px rgba(12, 42, 64, 0.06), 0 8px 24px rgba(12, 42, 64, 0.10);
  --shadow-header: 0 1px 0 var(--c-border), 0 2px 10px rgba(12, 42, 64, 0.04);
  --shadow-focus: 0 0 0 3px var(--celeste-200);

  --container: 1080px;
}

/* ---------- Base ---------- */
*, *::before, *::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body {
  margin: 0;
  font-family: var(--font-body);
  font-size: var(--fs-16);
  line-height: var(--lh-body);
  color: var(--c-text);
  background: var(--c-bg);
  text-rendering: optimizeLegibility;
}
h1, h2, h3, h4 {
  font-family: var(--font-head);
  color: var(--c-ink);
  line-height: var(--lh-tight);
  margin: 0 0 var(--sp-3);
  text-wrap: balance;
}
h1 { font-size: var(--fs-28); font-weight: 800; letter-spacing: -0.015em; }
h2 { font-size: var(--fs-20); font-weight: 700; letter-spacing: -0.01em; }
h3 { font-size: var(--fs-16); font-weight: 700; }
p { margin: 0 0 var(--sp-4); text-wrap: pretty; }
p:last-child { margin-bottom: 0; }
a { color: var(--c-primary); text-decoration: underline; text-decoration-color: var(--c-primary-border); text-underline-offset: 3px; }
a:hover { color: var(--c-primary-hover); text-decoration-color: currentColor; }
:focus-visible { outline: none; box-shadow: var(--shadow-focus); border-radius: var(--r-s); }
strong { color: var(--c-ink); }

.container {
  width: 100%;
  max-width: var(--container);
  margin-inline: auto;
  padding-inline: var(--sp-4);
}

/* ============================================================
   HEADER
   ============================================================ */
.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  background: var(--c-surface);
  box-shadow: var(--shadow-header);
}
.site-header .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--sp-4);
  min-height: 64px;
}
.brand {
  display: flex;
  align-items: center;
  gap: 10px;
  text-decoration: none;
  color: var(--c-ink);
}
.brand-mark { display: grid; place-items: center; width: 46px; height: 46px; }
.brand-mark svg { display: block; width: 46px; height: 46px; }
.brand-text { display: flex; flex-direction: column; line-height: 1.1; }
.brand-name { font-weight: 800; font-size: 1.375rem; letter-spacing: -0.02em; }
.brand-name em { font-style: normal; color: var(--c-primary); }
.brand-micro { font-size: 0.6875rem; font-weight: 500; color: var(--c-muted); letter-spacing: 0.02em; }

/* Nav desktop */
.nav { display: none; align-items: center; gap: var(--sp-1); }
.nav a {
  display: inline-flex;
  align-items: center;
  padding: 8px 12px;
  border-radius: var(--r-s);
  font-size: var(--fs-15);
  font-weight: 600;
  color: var(--c-text);
  text-decoration: none;
}
.nav a:hover { background: var(--c-primary-softer); color: var(--c-primary-hover); }
.nav a[aria-current="page"] { color: var(--c-primary); }
.nav .nav-cta {
  margin-left: var(--sp-2);
  background: var(--c-primary);
  color: #fff;
  border-radius: var(--r-button);
  padding: 10px 18px;
}
.nav .nav-cta:hover { background: var(--c-primary-hover); color: #fff; }
/* En su propia página, el CTA conserva texto blanco (no heredar el azul de aria-current) */
.nav a.nav-cta[aria-current="page"] { color: #fff; }

/* Hamburguesa + drawer (móvil) */
.nav-toggle {
  display: inline-flex;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 44px;
  height: 44px;
  padding: 10px;
  background: none;
  border: 1px solid var(--c-border);
  border-radius: var(--r-s);
  cursor: pointer;
}
.nav-toggle span { display: block; height: 2px; border-radius: 2px; background: var(--c-ink); transition: transform .25s ease, opacity .2s ease; }
/* Hamburguesa → X cuando el menú está abierto */
.nav-toggle[aria-expanded="true"] span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.nav-toggle[aria-expanded="true"] span:nth-child(2) { opacity: 0; }
.nav-toggle[aria-expanded="true"] span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* Drawer: animado (slide + fade). Cerrado = colapsado, no display:none, para poder animar. */
.nav-drawer {
  overflow: hidden;
  max-height: 0;
  opacity: 0;
  background: var(--c-surface);
  border-top: 0 solid var(--c-border);
  padding: 0 var(--sp-4);
  transition: max-height .3s ease, opacity .22s ease, padding .3s ease, border-width .1s;
}
.nav-drawer.open {
  max-height: 85vh;
  opacity: 1;
  border-top-width: 1px;
  padding: var(--sp-2) var(--sp-4) var(--sp-5);
}
@media (prefers-reduced-motion: reduce) {
  .nav-drawer, .nav-toggle span { transition: none; }
}
.nav-drawer a {
  display: block;
  padding: 13px var(--sp-2);
  font-weight: 600;
  font-size: var(--fs-16);
  color: var(--c-text);
  text-decoration: none;
  border-bottom: 1px solid var(--c-border);
}
.nav-drawer a:last-child { border-bottom: 0; }
.nav-drawer .nav-cta {
  margin-top: var(--sp-3);
  background: var(--c-primary);
  color: #fff;
  text-align: center;
  border-radius: var(--r-button);
  border-bottom: 0;
}

@media (min-width: 880px) {
  .nav { display: flex; }
  .nav-toggle, .nav-drawer { display: none; }
  .nav-drawer.open { display: none; }
}

/* ============================================================
   BREADCRUMB
   ============================================================ */
.breadcrumbs { padding: var(--sp-3) 0 0; }
.breadcrumbs ol { display: flex; flex-wrap: wrap; gap: 6px; list-style: none; margin: 0; padding: 0; font-size: var(--fs-14); }
.breadcrumbs li { display: flex; align-items: center; gap: 6px; color: var(--c-muted); }
.breadcrumbs li + li::before { content: "›"; color: var(--c-border-2); font-weight: 600; }
.breadcrumbs a { color: var(--c-muted); text-decoration: none; }
.breadcrumbs a:hover { color: var(--c-primary); text-decoration: underline; }
.breadcrumbs [aria-current="page"] { color: var(--c-ink); font-weight: 600; }

/* ============================================================
   MAIN / CAJAS
   ============================================================ */
main.container { padding-block: var(--sp-5) var(--sp-12); }

.box {
  background: var(--c-surface);
  border-radius: var(--r-l);
  box-shadow: var(--shadow-card);
  padding: var(--sp-5);
  margin-bottom: var(--sp-5);
}
@media (min-width: 768px) {
  .box { padding: var(--sp-8); }
}

.boxHeading {
  font-size: var(--fs-20);
  margin-bottom: var(--sp-4);
  padding-bottom: var(--sp-3);
  border-bottom: 1px solid var(--c-border);
  position: relative;
  scroll-margin-top: 80px; /* el anchor no queda tapado por el header sticky */
}
.boxHeading::after {
  content: "";
  position: absolute;
  left: 0; bottom: -1px;
  width: 44px; height: 2px;
  border-radius: 2px;
  background: var(--c-primary-vivid);
}
.row.box h1, .row.box .boxHeading { font-size: var(--fs-28); }
@media (min-width: 768px) {
  .row.box h1, .row.box .boxHeading { font-size: var(--fs-34); }
}
.box .lead { font-size: var(--fs-18); color: var(--c-text); }

/* Viñetas propias */
.box ul { list-style: none; margin: 0 0 var(--sp-4); padding: 0; }
.box ul li { position: relative; padding-left: 22px; margin-bottom: var(--sp-2); }
.box ul li::before {
  content: "";
  position: absolute;
  left: 4px; top: 0.62em;
  width: 7px; height: 7px;
  border-radius: 2px;
  background: var(--c-primary-vivid);
  transform: rotate(45deg);
}
.box ul:last-child, .box ol:last-child { margin-bottom: 0; }

/* Pasos numerados */
.steps { counter-reset: paso; list-style: none; margin: 0 0 var(--sp-4); padding: 0; }
.steps > li {
  counter-increment: paso;
  position: relative;
  padding: 0 0 var(--sp-5) 52px;
}
.steps > li::before {
  content: counter(paso);
  position: absolute;
  left: 0; top: -2px;
  width: 34px; height: 34px;
  display: grid;
  place-items: center;
  background: var(--c-primary-soft);
  color: var(--c-primary-hover);
  border: 1px solid var(--c-primary-border);
  border-radius: var(--r-pill);
  font-weight: 800;
  font-size: var(--fs-15);
}
.steps > li::after {
  content: "";
  position: absolute;
  left: 16px; top: 36px; bottom: 6px;
  width: 2px;
  background: var(--c-border);
  border-radius: 2px;
}
.steps > li:last-child { padding-bottom: 0; }
.steps > li:last-child::after { display: none; }
.steps b, .steps strong { display: block; color: var(--c-ink); margin-bottom: 2px; }

/* Grilla de cajas */
.row.stacked { display: grid; gap: var(--sp-4); margin-bottom: var(--sp-5); grid-template-columns: 1fr; }
.row.stacked .box, .row.stacked .col-sm-6, .row.stacked .col-sm-12 { margin-bottom: 0; }
@media (min-width: 768px) {
  .row.stacked { grid-template-columns: 1fr 1fr; gap: var(--sp-5); }
  .row.stacked .col-sm-12 { grid-column: 1 / -1; }
}

/* Tarjeta de acceso (home): ícono a la izquierda del bloque título+subtítulo, CTA debajo */
.box.access { display: flex; flex-direction: column; gap: var(--sp-4); transition: box-shadow 120ms ease, transform 120ms ease; }
.box.access:hover { box-shadow: var(--shadow-card-hover); transform: translateY(-1px); }
.box.access .access-head { display: flex; align-items: center; gap: var(--sp-3); }
.box.access .access-icon {
  flex: none;
  width: 46px; height: 46px;
  display: grid; place-items: center;
  background: var(--c-primary-softer);
  border: 1px solid var(--c-primary-border);
  border-radius: var(--r-m);
}
.box.access .access-icon svg { width: 24px; height: 24px; stroke: var(--c-primary); }
.box.access .access-text { min-width: 0; }
.box.access h2 { margin: 0 0 2px; font-size: var(--fs-18); }
.box.access p { color: var(--c-muted); font-size: var(--fs-15); margin: 0; }
.box.access .button { margin-top: auto; align-self: start; }

/* ============================================================
   BOTONES
   ============================================================ */
.button, .form-button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  min-height: 44px;
  padding: 10px 22px;
  border: 1px solid transparent;
  border-radius: var(--r-button);
  background: var(--c-primary);
  color: #fff;
  font-family: inherit;
  font-size: var(--fs-16);
  font-weight: 700;
  line-height: 1.2;
  text-decoration: none;
  cursor: pointer;
  transition: background 120ms ease, box-shadow 120ms ease, transform 60ms ease;
}
.button:hover, .form-button:hover { background: var(--c-primary-hover); color: #fff; }
/* El <strong> dentro del botón (markup del rewarded) no debe heredar el color oscuro de strong{} */
.button strong, .form-button strong { color: inherit; }
.button.ghost strong { color: inherit; }
.button:active, .form-button:active { transform: translateY(1px); }
.button:focus-visible, .form-button:focus-visible { box-shadow: var(--shadow-focus); }

.button.ghost {
  background: var(--c-surface);
  color: var(--c-primary);
  border-color: var(--c-border-2);
}
.button.ghost:hover { background: var(--c-primary-softer); color: var(--c-primary-hover); border-color: var(--c-primary-border); }

.button.small { min-height: 38px; padding: 7px 16px; font-size: var(--fs-15); }

/* ============================================================
   FORMULARIO
   ============================================================ */
.form-grid { display: grid; gap: var(--sp-4) var(--sp-6); grid-template-columns: 1fr; }
@media (min-width: 768px) {
  .form-grid { grid-template-columns: 1fr 1fr; align-content: start; }
}
.form-group { margin: 0; }
.control-label {
  display: block;
  font-size: var(--fs-14);
  font-weight: 700;
  color: var(--c-ink);
  margin-bottom: 6px;
}
.control-label .optional { font-weight: 500; color: var(--c-muted); }
.controls { display: flex; gap: var(--sp-2); }
.controls > * { flex: 1; min-width: 0; }

.form-control {
  width: 100%;
  min-height: 48px;
  padding: 10px 14px;
  font-family: inherit;
  font-size: var(--fs-16);
  color: var(--c-ink);
  background: var(--c-surface);
  border: 1px solid var(--c-border-2);
  border-radius: var(--r-m);
  transition: border-color 120ms ease, box-shadow 120ms ease;
}
.form-control::placeholder { color: var(--c-muted); opacity: 0.7; }
.form-control:hover { border-color: var(--celeste-400); }
.form-control:focus { outline: none; border-color: var(--c-primary); box-shadow: var(--shadow-focus); }
select.form-control {
  appearance: none;
  background-image: url("data:image/svg+xml;charset=utf-8,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='8' viewBox='0 0 12 8'%3E%3Cpath d='M1 1.5 6 6.5 11 1.5' fill='none' stroke='%235E7689' stroke-width='2' stroke-linecap='round'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 12px center;
  padding-right: 34px;
}
.form-control[aria-invalid="true"] { border-color: var(--c-error); }

/* CURP protagonista */
.form-control.curp {
  min-height: 58px;
  font-family: var(--font-mono);
  font-size: var(--fs-20);
  letter-spacing: 0.12em;
  text-transform: uppercase;
  text-align: center;
}

.form-actions { display: flex; flex-direction: column; gap: var(--sp-2); }
.form-actions .form-button { width: 100%; min-height: 52px; font-size: var(--fs-18); }
.form-hint { font-size: var(--fs-14); color: var(--c-muted); margin: 0; }

/* ============================================================
   RESULTADO — píldora RFC
   ============================================================ */
.copy-container {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: var(--sp-2);
}
.rfc {
  display: inline-flex;
  align-items: center;
  min-height: 56px;
  padding: 10px 20px;
  font-family: var(--font-mono);
  font-size: var(--fs-24);
  font-weight: 700;
  letter-spacing: 0.1em;
  color: var(--c-primary-hover);
  background: var(--c-primary-softer);
  border: 1.5px dashed var(--c-primary-border);
  border-radius: var(--r-m);
}
.rfc.red { color: var(--c-error); background: var(--c-error-soft); border-color: #F2C5C5; }
.rfc .homo-pendiente { color: var(--c-error); }

.copy-button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 48px; height: 48px;
  background: var(--c-surface);
  border: 1px solid var(--c-border-2);
  border-radius: var(--r-m);
  cursor: pointer;
  color: var(--c-primary);
  transition: background 120ms ease, border-color 120ms ease;
}
.copy-button:hover { background: var(--c-primary-softer); border-color: var(--c-primary-border); }
.copy-button svg { width: 22px; height: 22px; }
.copy-button .icon-check { display: none; color: var(--c-success); }
.copy-button.copied .icon-copy { display: none; }
.copy-button.copied .icon-check { display: block; }
.copy-button.copied { border-color: var(--c-success); background: var(--c-success-soft); }

.result-block { margin-top: var(--sp-5); padding-top: var(--sp-5); border-top: 1px solid var(--c-border); }
.result-block .result-label {
  display: block;
  font-size: var(--fs-12);
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--c-muted);
  margin-bottom: var(--sp-2);
}
.result-actions { display: flex; flex-wrap: wrap; gap: var(--sp-2); margin-top: var(--sp-4); }
/* Nota de homonimia bajo el RFC calculado: info sutil, no alarma */
.result-note { font-size: var(--fs-14); align-items: flex-start; margin: var(--sp-4) 0 0; }

/* ============================================================
   ALERTS
   ============================================================ */
.alert {
  display: flex;
  gap: 10px;
  padding: 12px 16px;
  border-radius: var(--r-m);
  border: 1px solid var(--c-primary-border);
  background: var(--c-primary-softer);
  color: var(--celeste-800);
  font-size: var(--fs-15);
  margin-bottom: var(--sp-4);
}
.alert::before {
  content: "";
  flex: none;
  width: 8px; height: 8px;
  margin-top: 0.5em;
  border-radius: 50%;
  background: var(--c-primary-vivid);
}
.alert-danger { background: var(--c-error-soft); border-color: #F2C5C5; color: #8C1D1D; }
.alert-danger::before { background: var(--c-error); }
.alert-success { background: var(--c-success-soft); border-color: #BCE5CC; color: #0F5C34; }
.alert-success::before { background: var(--c-success); }
.alert-warning { background: var(--c-warning-soft); border-color: #EFD9A8; color: #7A4D0B; }
.alert-warning::before { background: var(--c-warning); }
.alert strong { color: inherit; }
.alert p { margin: 0; }

/* ============================================================
   FAQ (acordeón con <details> — contenido siempre en el HTML)
   Animación de apertura/cierre: pura CSS via ::details-content
   (Chrome/Edge); en navegadores sin soporte abre sin animar.
   ============================================================ */
@supports (interpolate-size: allow-keywords) {
  html { interpolate-size: allow-keywords; }
}
@media (prefers-reduced-motion: no-preference) {
  .faq details::details-content {
    block-size: 0;
    overflow: clip;
    transition: block-size 240ms ease, content-visibility 240ms allow-discrete;
  }
  .faq details[open]::details-content { block-size: auto; }
}
.faq details {
  border-bottom: 1px solid var(--c-border);
}
.faq details:last-child { border-bottom: 0; }
.faq summary {
  list-style: none;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--sp-3);
  padding: 14px 2px;
  font-weight: 700;
  font-size: var(--fs-16);
  color: var(--c-ink);
  cursor: pointer;
  border-radius: var(--r-s);
}
.faq summary::-webkit-details-marker { display: none; }
.faq summary:hover { color: var(--c-primary); }
.faq summary::after {
  content: "";
  flex: none;
  width: 10px; height: 10px;
  border-right: 2px solid var(--c-muted);
  border-bottom: 2px solid var(--c-muted);
  transform: rotate(45deg);
  transition: transform 140ms ease;
  margin-right: 4px;
}
.faq details[open] summary::after { transform: rotate(225deg); margin-top: 6px; }
.faq details > div { padding: 0 2px var(--sp-4); color: var(--c-text); }
.faq h3 { display: contents; font: inherit; }

/* ============================================================
   TABLA SIMPLE
   ============================================================ */
/* Contenedor con scroll horizontal: evita que la tabla se salga de ancho en móvil */
.table-wrap { overflow-x: auto; -webkit-overflow-scrolling: touch; margin-bottom: var(--sp-4); }
.table-wrap table { margin-bottom: 0; }
.table-wrap table { min-width: 460px; }
.box table { width: 100%; border-collapse: collapse; font-size: var(--fs-15); margin-bottom: var(--sp-4); }
.box th {
  text-align: left;
  font-size: var(--fs-12);
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--c-muted);
  padding: 8px 12px;
  border-bottom: 2px solid var(--c-border-2);
}
.box td { padding: 10px 12px; border-bottom: 1px solid var(--c-border); }
.box tr:last-child td { border-bottom: 0; }
.box td:first-child { font-weight: 600; color: var(--c-ink); }

/* ============================================================
   FOOTER
   ============================================================ */
.site-footer {
  background: var(--c-footer-bg);
  color: var(--c-footer-ink);
  font-size: var(--fs-15);
  margin-top: var(--sp-10);
}
.site-footer .container { padding-block: var(--sp-10) var(--sp-6); }
.footer-grid { display: grid; gap: var(--sp-8); grid-template-columns: 1fr; }
@media (min-width: 768px) {
  .footer-grid { grid-template-columns: 1.2fr 1fr 1fr; }
}
.site-footer h4 {
  color: #fff;
  font-size: var(--fs-12);
  text-transform: uppercase;
  letter-spacing: 0.1em;
  margin-bottom: var(--sp-3);
}
.site-footer ul { list-style: none; margin: 0; padding: 0; }
.site-footer li { margin-bottom: 10px; }
.site-footer a { color: var(--c-footer-ink); text-decoration: none; }
.site-footer a:hover { color: #fff; text-decoration: underline; }
.site-footer .brand-name { color: #fff; }
.site-footer .disclaimer {
  font-size: var(--fs-14);
  line-height: 1.6;
  opacity: 0.85;
  margin-top: var(--sp-3);
}
.footer-bottom {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: var(--sp-2);
  margin-top: var(--sp-8);
  padding-top: var(--sp-5);
  border-top: 1px solid rgba(255, 255, 255, 0.12);
  font-size: var(--fs-14);
}

/* ============================================================
   HERO (home)
   ============================================================ */
.hero { padding: var(--sp-8) 0 var(--sp-8); text-align: center; }
.hero h1 { font-size: var(--fs-34); margin-bottom: var(--sp-3); }
@media (min-width: 768px) {
  .hero h1 { font-size: var(--fs-42); max-width: 18ch; margin-inline: auto; }
}
.hero p { font-size: var(--fs-18); color: var(--c-text); max-width: 56ch; margin-inline: auto; }
.hero .hero-badges { display: flex; flex-wrap: wrap; justify-content: center; gap: var(--sp-2); margin-top: var(--sp-4); }
.hero .badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 6px 12px;
  font-size: var(--fs-14);
  font-weight: 600;
  color: var(--celeste-800);
  background: var(--c-primary-soft);
  border: 1px solid var(--c-primary-border);
  border-radius: var(--r-pill);
}

/* ============================================================
   INFOGRAFÍA — cómo se forma el RFC (CSS puro, reutilizable)
   ============================================================ */
.info-rfc { margin: 0; }
.info-rfc .ir-tiles { display: flex; gap: 18px; justify-content: center; flex-wrap: wrap; margin: var(--sp-2) 0 var(--sp-6); }
.info-rfc .ir-group { display: flex; flex-direction: column; }
.info-rfc .ir-chars { display: flex; gap: 4px; }
.info-rfc .ir-ch {
  display: grid; place-items: center;
  width: 40px; height: 52px;
  border-radius: var(--r-s);
  font-family: var(--font-mono);
  font-size: var(--fs-20); font-weight: 700;
}
.info-rfc .ir-ch.letra { background: var(--celeste-100); color: var(--celeste-700); border: 1px solid var(--celeste-200); }
.info-rfc .ir-ch.fecha { background: var(--c-surface); color: var(--c-ink); border: 1px solid var(--c-border-2); }
.info-rfc .ir-ch.homo { background: var(--c-accent-soft); color: var(--c-warning); border: 1px solid #EFD9A8; }
.info-rfc .ir-bracket { height: 8px; margin-top: 6px; border: 2px solid var(--bk, var(--c-muted)); border-top: 0; border-radius: 0 0 6px 6px; }
.info-rfc .ir-label { text-align: center; font-size: var(--fs-12); font-weight: 700; color: var(--bk, var(--c-muted)); margin-top: 6px; }
.info-rfc .ir-group.letras { --bk: var(--c-primary); }
.info-rfc .ir-group.homoclave { --bk: var(--c-accent); }
.info-rfc .ir-legend { display: grid; gap: 10px; grid-template-columns: 1fr; }
@media (min-width: 768px) { .info-rfc .ir-legend { grid-template-columns: 1fr 1fr 1fr; } }
.info-rfc .ir-card { border: 1px solid var(--c-border); border-radius: var(--r-m); padding: 12px 14px; font-size: var(--fs-14); background: var(--c-surface); }
.info-rfc .ir-card h4 { font-size: var(--fs-12); font-weight: 700; letter-spacing: 0.09em; text-transform: uppercase; color: var(--c-muted); margin: 0 0 8px; }
.info-rfc .ir-card p { margin: 0 0 4px; }
.info-rfc mark { color: var(--celeste-700); background: var(--celeste-100); border-radius: 3px; padding: 0 3px; font-weight: 700; }

/* Infografía servida como imagen (SVG indexable) */
.info-rfc-img { margin: 0; }
.info-rfc-img img { display: block; width: 100%; height: auto; border: 1px solid var(--c-border); border-radius: var(--r-m); }
.info-rfc-img figcaption { margin-top: var(--sp-3); font-size: var(--fs-14); color: var(--c-muted); }

/* ============================================================
   INFOGRAFÍAS en CSS puro (cards con ícono). Reutilizable.
   ============================================================ */
.info-cards { display: grid; gap: var(--sp-4); grid-template-columns: 1fr; margin: var(--sp-2) 0 0; }
@media (min-width: 720px) { .info-cards.cols-3 { grid-template-columns: 1fr 1fr 1fr; } }
.info-card {
  border: 1px solid var(--c-border); border-radius: var(--r-l);
  background: var(--c-surface); padding: var(--sp-5);
  display: flex; flex-direction: column; gap: var(--sp-2);
}
/* .info-card como link (guía de decisión → anchor del método) */
a.info-card { text-decoration: none; color: inherit; transition: box-shadow .12s ease, transform .12s ease, border-color .12s ease; }
a.info-card:hover { box-shadow: var(--shadow-card-hover); transform: translateY(-1px); border-color: var(--c-primary-border); }
a.info-card .ic-tag { color: var(--c-primary); font-weight: 600; }
.info-card .ic-badge {
  width: 46px; height: 46px; border-radius: var(--r-pill);
  display: grid; place-items: center; margin-bottom: var(--sp-1);
  background: var(--c-primary-soft); border: 1px solid var(--c-primary-border);
}
.info-card .ic-badge svg { width: 24px; height: 24px; stroke: var(--c-primary); fill: none; }
.info-card.amber .ic-badge { background: var(--c-accent-soft); border-color: #EFD9A8; }
.info-card.amber .ic-badge svg { stroke: var(--c-accent); }
.info-card.neutral .ic-badge { background: #EEF3F6; border-color: var(--c-border-2); }
.info-card.neutral .ic-badge svg { stroke: var(--c-muted); }
.info-card h3 { margin: 0; font-size: var(--fs-16); }
.info-card .ic-cond { font-size: var(--fs-14); font-weight: 700; color: var(--c-muted); text-transform: uppercase; letter-spacing: 0.04em; }
.info-card p { margin: 0; font-size: var(--fs-15); color: var(--c-text); }
.info-card .ic-tag { margin-top: auto; font-size: var(--fs-14); color: var(--c-muted); }

/* ============================================================
   AJUSTES MÓVIL
   ============================================================ */
@media (max-width: 767px) {
  /* Botones de las cajas centrados en móvil */
  .row.stacked .result-actions,
  .box .result-actions { justify-content: center; }
  .box.access .button { align-self: center; }
  .box.access { text-align: center; }
  .box.access .access-head { justify-content: center; }
}