/* ===========================================================================
   BUEN DATO · sistema visual
   Editorial · papel + tinta · un solo acento. Mobile-first.
   =========================================================================== */

/* --- Fuentes auto-alojadas (woff2 latino) -------------------------------------
   Antes se pedían a Google Fonts en cada visita (conexión extra + render
   bloqueado). Ahora se sirven desde el propio hosting: más rápido en móvil.
   font-display:swap = el texto se ve con la fuente de sistema y cambia a la de
   marca al cargar (nunca queda invisible). */
@font-face { font-family:"Manrope"; font-weight:600; font-style:normal; font-display:swap; src:url(fonts/manrope-600.woff2) format("woff2"); }
@font-face { font-family:"Manrope"; font-weight:700; font-style:normal; font-display:swap; src:url(fonts/manrope-700.woff2) format("woff2"); }
@font-face { font-family:"Manrope"; font-weight:800; font-style:normal; font-display:swap; src:url(fonts/manrope-800.woff2) format("woff2"); }
@font-face { font-family:"Newsreader"; font-weight:400; font-style:normal; font-display:swap; src:url(fonts/newsreader-400.woff2) format("woff2"); }
@font-face { font-family:"Newsreader"; font-weight:500; font-style:normal; font-display:swap; src:url(fonts/newsreader-500.woff2) format("woff2"); }
@font-face { font-family:"Newsreader"; font-weight:400; font-style:italic; font-display:swap; src:url(fonts/newsreader-400i.woff2) format("woff2"); }
@font-face { font-family:"JetBrains Mono"; font-weight:400; font-style:normal; font-display:swap; src:url(fonts/jetbrains-400.woff2) format("woff2"); }
@font-face { font-family:"JetBrains Mono"; font-weight:500; font-style:normal; font-display:swap; src:url(fonts/jetbrains-500.woff2) format("woff2"); }

:root {
  /* === Brand Kit oficial · Paleta A (Rica) + B (Sobria) === */
  --ink: #1A1A1A;          /* Tinta */
  --ink-soft: #3a3a37;
  --muted: #6f6a60;
  --paper: #F8F6F1;        /* Crema suave — fondo principal */
  --paper-2: #FCFBF7;
  --card: #FCFAF4;
  --line: #C9C4BB;         /* Gris — líneas/bordes */
  --line-strong: #b6b0a4;
  --accent: #1F7A4C;       /* Verde dato — firma y acentos */
  --accent-ink: #155c39;
  --cta: #E8743C;          /* Naranja señal — SOLO precios y CTA-context */
  --wa: #1F7A4C;           /* botón Pedir = verde de marca */
  --wa-dark: #155c39;

  --serif: "Newsreader", Georgia, "Times New Roman", serif;  /* cuerpo */
  --sans: "Manrope", system-ui, -apple-system, "Segoe UI", Roboto, sans-serif; /* titular/logo */
  --mono: "JetBrains Mono", ui-monospace, "SF Mono", Menlo, monospace; /* sello/tags/números */

  --maxw: 1080px;
  --radius: 14px;
  --shadow: 0 1px 2px rgba(27,23,20,.05), 0 12px 30px -18px rgba(27,23,20,.35);
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  font-family: var(--serif);   /* Newsreader — cuerpo */
  color: var(--ink);
  background: var(--paper);
  line-height: 1.6;
  font-size: 1.06rem;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

img { max-width: 100%; display: block; }

a { color: inherit; }

h1, h2, h3 { font-family: var(--sans); font-weight: 800; line-height: 1.04; letter-spacing: -.03em; margin: 0; }

.wrap { width: 100%; max-width: var(--maxw); margin-inline: auto; padding-inline: 20px; }

.eyebrow {
  font-family: var(--mono);
  font-size: .72rem; font-weight: 500;
  letter-spacing: .12em; text-transform: uppercase;
  color: var(--accent);
}

/* ---- Botones --------------------------------------------------------------*/
.btn {
  display: inline-flex; align-items: center; gap: .55rem;
  font-family: var(--sans); font-weight: 600; font-size: 1rem;
  padding: .85rem 1.4rem; border-radius: 999px;
  border: 1px solid transparent; cursor: pointer; text-decoration: none;
  transition: transform .12s ease, box-shadow .12s ease, background .12s ease;
  line-height: 1;
}
.btn:active { transform: translateY(1px); }
.btn-wa { background: var(--wa); color: #fff; box-shadow: 0 10px 22px -12px rgba(18,140,67,.9); }
.btn-wa:hover { background: var(--wa-dark); }
.btn-wa svg { width: 1.15em; height: 1.15em; fill: currentColor; }
.btn-ghost { background: transparent; color: var(--ink); border-color: var(--line-strong); }
.btn-ghost:hover { background: var(--paper-2); }
.btn-ink { background: var(--ink); color: var(--paper); }
.btn-ink:hover { background: #322a23; }
.btn-block { width: 100%; justify-content: center; }
.btn-lg { font-size: 1.05rem; padding: 1rem 1.6rem; }

/* ---- Header ---------------------------------------------------------------*/
.site-header {
  position: sticky; top: 0; z-index: 50;
  background: color-mix(in srgb, var(--paper) 88%, transparent);
  backdrop-filter: saturate(1.2) blur(8px);
  border-bottom: 1px solid var(--line);
}
.site-header .wrap { display: flex; align-items: center; justify-content: space-between; height: 64px; }
.brandmark { display: inline-flex; align-items: center; text-decoration: none; }
.brandmark img { display: block; height: 26px; width: auto; }
.site-footer .brandmark img { height: 28px; }
.nav { display: none; align-items: center; gap: 1.6rem; }
.nav a { text-decoration: none; color: var(--ink-soft); font-size: .95rem; font-weight: 500; }
.nav a:hover { color: var(--ink); }
.header-cta { display: none; }
@media (min-width: 820px) {
  .nav { display: flex; }
  .header-cta { display: inline-flex; }
}

/* ---- Hero -----------------------------------------------------------------*/
.hero { padding: clamp(3rem, 8vw, 6rem) 0 clamp(2.5rem, 6vw, 4rem); }
.hero .stamp { margin-bottom: 1.4rem; }
.hero h1 { font-size: clamp(2.6rem, 9vw, 5rem); letter-spacing: -.03em; }
.hero h1 em { font-style: italic; font-family: var(--serif); font-weight: 500; color: var(--accent); }
.hero .lede { font-size: clamp(1.1rem, 3.5vw, 1.4rem); color: var(--ink-soft); max-width: 36ch; margin: 1.3rem 0 2rem; }
.hero-actions { display: flex; flex-wrap: wrap; gap: .8rem; align-items: center; }
.hero-trust { margin-top: 1.6rem; color: var(--muted); font-size: .9rem; display: flex; flex-wrap: wrap; gap: .4rem 1.2rem; }
.hero-trust span { display: inline-flex; align-items: center; gap: .4rem; }

/* sello redondo */
.stamp {
  display: inline-flex; align-items: center; gap: .6rem;
  border: 1px solid var(--line-strong); border-radius: 999px;
  padding: .35rem .8rem .35rem .4rem; background: var(--paper-2);
  font-size: .8rem; color: var(--ink-soft);
}
.stamp .seal {
  width: 26px; height: 26px; border-radius: 50%;
  background: var(--accent); color: #fff;
  display: grid; place-items: center; font-family: var(--serif); font-weight: 700; font-size: .85rem;
}

/* ---- Hero con ilustración --------------------------------------------------*/
.hero-grid { display: grid; gap: 2rem; grid-template-columns: 1fr; align-items: center; }
@media (min-width: 880px) { .hero-grid { grid-template-columns: 1.05fr .95fr; gap: 3rem; } }
.hero-figure { margin: 0; position: relative; }
.hero-figure .illus { background: var(--card); }
@media (max-width: 879px) { .hero-figure { max-width: 420px; margin-inline: auto; } }

/* marco de ilustración reutilizable */
.illus {
  border: 1px solid var(--line); border-radius: var(--radius); overflow: hidden;
  background: #EFECE6; box-shadow: var(--shadow);
}
.illus img { width: 100%; height: 100%; object-fit: cover; display: block; }

/* ---- Filas de punto de dolor (pain → solución) ----------------------------*/
.feature { display: grid; gap: 1.6rem; grid-template-columns: 1fr; align-items: center; padding: 1.4rem 0; }
@media (min-width: 820px) {
  .feature { grid-template-columns: 1fr 1fr; gap: 3.2rem; }
  .feature.reverse .f-figure { order: 2; }
}
.f-figure { margin: 0; }
.f-figure .illus { max-width: 480px; }
@media (max-width: 819px) { .f-figure .illus { max-width: 360px; margin-inline: auto; } }
.f-body .pain { font-family: var(--serif); font-style: italic; color: var(--ink-soft); font-size: 1.15rem; margin: 0 0 .6rem; }
.f-body h3 { font-size: clamp(1.5rem, 4vw, 2.1rem); margin: 0 0 .7rem; }
/* El hook es la frase que vende: peso 500 y tinta más firme para que pese más. */
.f-body p { color: #2b2b28; margin: 0 0 1.2rem; font-size: 1.05rem; font-weight: 500; }
.f-meta { display: flex; align-items: center; gap: 1rem; flex-wrap: wrap; }
.f-meta .price { font-size: 1.4rem; }

/* ---- Secciones genéricas --------------------------------------------------*/
section { scroll-margin-top: 80px; }
.section { padding: clamp(2.8rem, 7vw, 4.5rem) 0; }
.section-head { max-width: 56ch; margin-bottom: 2.2rem; }
.section-head h2 { font-size: clamp(1.8rem, 5vw, 2.6rem); }
.section-head p { color: var(--ink-soft); font-size: 1.08rem; margin: .7rem 0 0; }
.alt { background: var(--paper-2); border-block: 1px solid var(--line); }

/* ---- Value props ----------------------------------------------------------*/
/* 2 columnas ya en móvil: 4 tarjetas apiladas ocupaban mucho scroll. */
.values { display: grid; gap: .7rem; grid-template-columns: 1fr 1fr; }
@media (min-width: 940px) { .values { grid-template-columns: repeat(4, 1fr); gap: 1rem; } }
@media (max-width: 400px) { .values .value p { font-size: .85rem; } }
.value {
  background: var(--card); border: 1px solid var(--line); border-radius: var(--radius);
  padding: 1.3rem;
}
.value .ic-img { width: 20px; height: 20px; display: block; }
.hero-trust .tick { vertical-align: -2px; }
.value h3 { font-size: 1.12rem; margin: .7rem 0 .35rem; font-family: var(--sans); font-weight: 700; letter-spacing: -.01em; }
.value p { margin: 0; color: var(--muted); font-size: .95rem; }

/* ---- Banda de pago (QR) ---------------------------------------------------*/
.paystrip-sec { padding: 1.1rem 0; background: var(--paper-2); border-bottom: 1px solid var(--line); }
.paystrip {
  display: flex; flex-wrap: wrap; align-items: center; justify-content: space-between;
  gap: 1rem 1.6rem;
}
.paystrip-lead { display: flex; align-items: center; gap: .85rem; }
.paystrip-ic {
  flex: none; width: 44px; height: 44px; border-radius: 12px;
  display: grid; place-items: center;
  background: color-mix(in srgb, var(--accent) 12%, transparent); color: var(--accent);
}
.paystrip-lead strong { display: block; font-family: var(--sans); font-weight: 700; letter-spacing: -.01em; font-size: 1.05rem; }
.paystrip-sub { display: block; color: var(--muted); font-size: .9rem; }
.bank-logos { display: flex; flex-wrap: wrap; align-items: center; gap: .5rem; }
.bank-logo-tile {
  flex: none;
  display: flex; align-items: center; justify-content: center;
  width: 122px; height: 46px; padding: 6px 12px;
  background: #fff; border: 1px solid var(--line); border-radius: 10px;
  overflow: hidden;
}
.bank-logo { max-height: 30px; max-width: 98px; width: auto; height: auto; object-fit: contain; display: block; }
.bank-logo-text { font-family: var(--sans); font-weight: 700; font-size: .92rem; color: var(--ink-soft); letter-spacing: -.01em; white-space: nowrap; }
.bank-chip {
  font-family: var(--mono); font-size: .72rem; letter-spacing: .01em;
  color: var(--ink-soft); background: var(--card);
  border: 1px solid var(--line); border-radius: 999px;
  padding: .28rem .6rem; white-space: nowrap;
}

/* ---- Catálogo -------------------------------------------------------------*/
.grid { display: grid; gap: 1.4rem; grid-template-columns: 1fr; }
@media (min-width: 600px) { .grid { grid-template-columns: 1fr 1fr; } }
@media (min-width: 940px) { .grid { grid-template-columns: repeat(3, 1fr); } }

.card {
  background: var(--card); border: 1px solid var(--line); border-radius: var(--radius);
  overflow: hidden; display: flex; flex-direction: column;
  box-shadow: var(--shadow); transition: transform .15s ease, box-shadow .15s ease;
}
.card:hover { transform: translateY(-3px); box-shadow: 0 1px 2px rgba(27,23,20,.05), 0 24px 44px -22px rgba(27,23,20,.45); }
.card-link { text-decoration: none; color: inherit; display: block; }
.card-body { padding: 1.1rem 1.2rem 1.3rem; display: flex; flex-direction: column; flex: 1; }
.card-cat { font-family: var(--mono); font-size: .7rem; letter-spacing: .08em; text-transform: uppercase; color: var(--accent); font-weight: 500; }
/* En celular el mono de .7rem cae a 11px: muy chico para leer. */
@media (max-width: 640px) {
  .card-cat, .eyebrow { font-size: .76rem; }
}
.card h3 { font-size: 1.45rem; margin: .35rem 0 .25rem; }
.card .sub { color: var(--ink-soft); font-size: .98rem; margin: 0 0 1rem; }
.card-foot { margin-top: auto; display: flex; align-items: center; justify-content: space-between; gap: .8rem; }
.price { font-family: var(--sans); font-weight: 800; font-size: 1.3rem; color: var(--cta); letter-spacing: -.02em; }
.price small { font-size: .7rem; color: var(--muted); font-family: var(--mono); font-weight: 400; }

/* ---- Portada de libro (CSS) ----------------------------------------------*/
.cover {
  aspect-ratio: 3 / 4; position: relative; padding: 1.1rem;
  display: flex; flex-direction: column; color: var(--ink);
  background:
    radial-gradient(120% 80% at 50% -10%, rgba(255,255,255,.5), transparent 60%),
    var(--cv-tint, #ece2cc);
  border-bottom: 1px solid var(--line);
}
.cover::after { /* textura papel sutil */
  content: ""; position: absolute; inset: 0; pointer-events: none; opacity: .5;
  background-image: radial-gradient(rgba(0,0,0,.035) 1px, transparent 1px);
  background-size: 4px 4px;
}
.cover-top { display: flex; align-items: center; justify-content: space-between; font-family: var(--mono); font-size: .6rem; letter-spacing: .08em; text-transform: uppercase; font-weight: 500; color: var(--cv-accent, var(--accent)); }
.cover-rule { height: 1px; background: var(--cv-accent, #9a6b2f); opacity: .4; margin: .5rem 0 0; }
.cover-mid { margin: auto 0; }
.cover-mid h4 { font-family: var(--sans); font-weight: 800; font-size: clamp(1.5rem, 6vw, 2.1rem); line-height: 1; letter-spacing: -.035em; }
.cover-mid .cv-sub { font-family: var(--serif); font-style: italic; color: var(--ink-soft); font-size: .98rem; margin-top: .5rem; }
.cover-foot { display: flex; align-items: center; gap: .5rem; font-family: var(--mono); font-size: .58rem; letter-spacing: .06em; text-transform: uppercase; color: var(--muted); font-weight: 400; }
.cover-foot .cv-seal { width: 22px; height: 22px; border-radius: 50%; background: var(--accent); color: #fff; display: grid; place-items: center; font-family: var(--sans); font-weight: 800; font-size: .7rem; }
.cover .ribbon {
  position: absolute; top: .9rem; right: -2.2rem; transform: rotate(45deg);
  background: var(--accent); color: #fff; font-size: .6rem; font-weight: 700;
  letter-spacing: .12em; text-transform: uppercase; padding: .25rem 2.4rem; z-index: 2;
}

/* card “próximamente” */
.soon {
  border: 1px dashed var(--line-strong); border-radius: var(--radius);
  background: transparent; display: flex; flex-direction: column; justify-content: center;
  padding: 1.6rem; min-height: 220px; text-align: center; color: var(--muted);
}
.soon h3 { font-family: var(--sans); font-weight: 700; color: var(--ink); margin-bottom: .4rem; }
.soon .tags { display: flex; flex-wrap: wrap; gap: .4rem; justify-content: center; margin-top: .8rem; }
.soon .tag { border: 1px solid var(--line-strong); border-radius: 999px; padding: .2rem .7rem; font-size: .8rem; }

/* ---- Pasos ----------------------------------------------------------------*/
.steps { display: grid; gap: 1.2rem; grid-template-columns: 1fr; counter-reset: step; }
@media (min-width: 760px) { .steps { grid-template-columns: repeat(3, 1fr); } }
.step { position: relative; padding-top: .5rem; }
.step-top { display: flex; align-items: center; gap: .7rem; margin-bottom: .55rem; }
.step-ic {
  flex: none; width: 46px; height: 46px; border-radius: 13px;
  display: grid; place-items: center;
  background: color-mix(in srgb, var(--accent) 12%, transparent); color: var(--accent);
}
.step-ic svg { width: 25px; height: 25px; }
.step .num { font-family: var(--sans); font-size: 1.35rem; color: var(--line-strong); font-weight: 800; line-height: 1; letter-spacing: -.03em; }
.step h3 { font-family: var(--sans); font-weight: 700; font-size: 1.15rem; margin: .5rem 0 .3rem; }
.step p { margin: 0; color: var(--ink-soft); }

/* ---- Categorías -----------------------------------------------------------*/
.cats { display: grid; gap: .8rem; grid-template-columns: 1fr 1fr; }
@media (min-width: 760px) { .cats { grid-template-columns: repeat(4, 1fr); } }
.cat-pill {
  display: flex; align-items: center; gap: .6rem; text-decoration: none;
  background: var(--card); border: 1px solid var(--line); border-radius: 999px;
  padding: .7rem 1rem; color: var(--ink); font-weight: 600; font-size: .98rem;
}
.cat-pill .dot { width: 12px; height: 12px; border-radius: 50%; }
.cat-pill:hover { border-color: var(--line-strong); }

/* ---- Reseñas --------------------------------------------------------------*/
.reviews { display: grid; gap: 1.2rem; grid-template-columns: 1fr; }
@media (min-width: 720px) { .reviews { grid-template-columns: repeat(3, 1fr); } }
.review {
  background: var(--card); border: 1px solid var(--line); border-radius: var(--radius);
  padding: 1.4rem; display: flex; flex-direction: column; box-shadow: var(--shadow);
}
.review .stars { color: #d9a40a; letter-spacing: .1em; font-size: .95rem; margin-bottom: .6rem; }
.review blockquote { margin: 0; font-family: var(--serif); font-size: 1.12rem; line-height: 1.45; color: var(--ink); }
.review .who { margin-top: 1rem; font-size: .9rem; color: var(--muted); }
.review .who strong { color: var(--ink); font-weight: 600; }

/* ---- Garantías ------------------------------------------------------------*/
.guarantees { display: grid; gap: 1rem; grid-template-columns: 1fr 1fr; }
@media (min-width: 880px) { .guarantees { grid-template-columns: repeat(4, 1fr); } }
.guarantee { display: flex; gap: .8rem; align-items: flex-start; }
.guarantee .gic { width: 22px; height: 22px; flex: none; margin-top: 2px; }
.guarantee h3 { font-family: var(--sans); font-weight: 700; font-size: 1rem; margin: 0 0 .15rem; }
.guarantee p { margin: 0; color: var(--muted); font-size: .88rem; line-height: 1.45; }

/* ---- FAQ ------------------------------------------------------------------*/
.faq { max-width: 760px; margin-inline: auto; }
.faq details {
  border-bottom: 1px solid var(--line); padding: 1.1rem 0;
}
.faq summary {
  cursor: pointer; list-style: none; display: flex; justify-content: space-between; gap: 1rem;
  align-items: center; font-weight: 600; font-size: 1.1rem; font-family: var(--serif);
  /* Área táctil mínima de 44px: en celular medía 28px y era difícil de tocar. */
  min-height: 44px;
}
.faq summary::-webkit-details-marker { display: none; }
.faq summary .chev { transition: transform .2s ease; color: var(--accent); flex: none; }
.faq details[open] summary .chev { transform: rotate(45deg); }
.faq p { color: var(--ink-soft); margin: .7rem 0 0; }

/* ---- "Para quién no" (descalificación honesta) ----------------------------*/
.no-es-para {
  color: var(--muted); margin-top: .5rem;
  padding-left: .9rem; border-left: 2px solid var(--line-strong);
}

/* ---- "Cómo lo usas" (pasos del libro) -------------------------------------*/
.pasos-libro { display: grid; gap: .8rem; }
.paso-libro { display: flex; gap: .9rem; align-items: flex-start; }
.pl-n {
  flex: none; width: 34px; height: 34px; border-radius: 50%;
  display: grid; place-items: center;
  background: color-mix(in srgb, var(--accent) 12%, transparent); color: var(--accent);
  font-family: var(--sans); font-weight: 800; font-size: 1rem;
}
.paso-libro h4 { font-family: var(--sans); font-weight: 700; font-size: 1.02rem; margin: .35rem 0 .2rem; }
.paso-libro p { margin: 0; color: var(--ink-soft); }

/* ---- Vistazo adentro (páginas reales del libro) ---------------------------*/
.adentro { display: grid; grid-template-columns: repeat(3, 1fr); gap: .7rem; }
.adentro-item { display: block; border-radius: 10px; overflow: hidden; border: 1px solid var(--line); background: #fff; transition: transform .12s ease, box-shadow .12s ease; }
.adentro-item:hover { transform: translateY(-2px); box-shadow: var(--shadow); }
/* Proporción de página uniforme; el contenido entra completo (no se recorta). */
.adentro-item img { width: 100%; aspect-ratio: 3 / 4; object-fit: contain; object-position: center; background: #fff; display: block; padding: 6px; }

/* En celular, 3 columnas dejaban cada página a ~215px: ilegibles. Y esta es la
   sección que más convence (páginas reales del libro). Se vuelve un carrusel
   deslizable, a pantalla casi completa, para que se LEA. */
@media (max-width: 640px) {
  .adentro {
    display: flex; gap: .7rem;
    overflow-x: auto; -webkit-overflow-scrolling: touch;
    scroll-snap-type: x mandatory;
    margin-inline: -20px; padding: 0 20px .6rem;
    scrollbar-width: none;
  }
  .adentro::-webkit-scrollbar { display: none; }
  .adentro-item { flex: 0 0 78%; scroll-snap-align: center; }
}

/* ---- Bloque de confianza --------------------------------------------------*/
.trust { display: grid; gap: .9rem; grid-template-columns: 1fr; margin-top: 1.8rem; }
@media (min-width: 820px) { .trust { grid-template-columns: repeat(3, 1fr); } }
/* En la ficha de producto vive dentro de una columna angosta → siempre apilado. */
.is-product .trust { grid-template-columns: 1fr; }
.trust-item {
  display: flex; gap: .85rem; align-items: flex-start;
  background: var(--card); border: 1px solid var(--line); border-radius: var(--radius);
  padding: 1.1rem 1.2rem;
}
.trust-item strong { font-family: var(--sans); font-weight: 700; font-size: 1rem; display: block; }
.trust-item p { margin: .3rem 0 0; color: var(--ink-soft); font-size: .95rem; line-height: 1.5; }
.trust-item p strong { display: inline; font-weight: 700; }
.trust-ic {
  flex: none; width: 42px; height: 42px; border-radius: 12px; display: grid; place-items: center;
  background: color-mix(in srgb, var(--accent) 12%, transparent); color: var(--accent);
  font-family: var(--sans); font-weight: 800; font-size: 1.1rem;
}
.trust-ic svg { width: 23px; height: 23px; }
.trust-foto { flex: none; width: 46px; height: 46px; border-radius: 50%; object-fit: cover; border: 1px solid var(--line); }
/* La garantía es la que mata el miedo al QR: se destaca. */
.trust-garantia { border-color: var(--accent); background: color-mix(in srgb, var(--accent) 5%, var(--card)); }

/* ---- Lead magnet (captura de email) ---------------------------------------*/
.lead-card {
  background: var(--card); border: 1px solid var(--line); border-radius: var(--radius);
  padding: clamp(1.6rem, 4vw, 2.6rem); text-align: center; box-shadow: var(--shadow);
  max-width: 620px; margin-inline: auto;
}
.lead-card h2 { font-size: clamp(1.5rem, 4vw, 2.1rem); margin: .5rem 0 0; }
.lead-copy { color: var(--ink-soft); margin: .8rem auto 1.4rem; max-width: 46ch; }
.lead-copy em { font-style: italic; color: var(--accent); }
.lead-form { display: flex; flex-wrap: wrap; gap: .6rem; justify-content: center; }
.lead-form input {
  flex: 1 1 240px; min-width: 0; font-family: var(--serif); font-size: 1rem;
  padding: .85rem 1.1rem; border: 1px solid var(--line-strong); border-radius: 999px;
  background: #fff; color: var(--ink);
}
.lead-form input:focus { outline: 2px solid var(--accent); outline-offset: 1px; }
.lead-form button { flex: none; }
.lead-note { color: var(--muted); font-size: .85rem; margin: .9rem 0 0; }
.lead-ok {
  font-family: var(--sans); font-weight: 700; color: var(--accent);
  margin: .4rem 0 0; font-size: 1.05rem;
}

/* ---- CTA band -------------------------------------------------------------*/
.cta-band {
  background: var(--ink); color: var(--paper); border-radius: var(--radius);
  padding: clamp(2rem, 6vw, 3.4rem); text-align: center;
}
.cta-band h2 { color: var(--paper); font-size: clamp(1.7rem, 5vw, 2.4rem); }
.cta-band p { color: #d9cdba; max-width: 46ch; margin: .8rem auto 1.6rem; }
.cta-actions { display: flex; flex-wrap: wrap; gap: .8rem; justify-content: center; }
.btn-on-dark { background: transparent; color: var(--paper); border-color: rgba(255,255,255,.35); }
.btn-on-dark:hover { background: rgba(255,255,255,.1); border-color: rgba(255,255,255,.55); }
.btn-share svg { flex: none; }

/* ---- Página legal (privacidad) --------------------------------------------*/
.wrap-legal { max-width: 720px; }
.legal-h1 { font-size: clamp(2rem, 6vw, 2.8rem); margin: .4rem 0 .3rem; }
.wrap-legal h2 { font-family: var(--sans); font-weight: 800; font-size: 1.3rem; margin: 2.2rem 0 .6rem; }
.wrap-legal p { color: var(--ink-soft); margin: 0 0 .9rem; }
.p-list-plain { list-style: none; padding: 0; margin: 0 0 1rem; }
.p-list-plain li {
  color: var(--ink-soft); margin: 0 0 .7rem;
  padding-left: 1rem; border-left: 2px solid var(--line);
}
.footer-bottom a { color: inherit; text-decoration: underline; text-underline-offset: 2px; }

/* ---- Footer ---------------------------------------------------------------*/
.site-footer { border-top: 1px solid var(--line); background: var(--paper-2); padding: 2.6rem 0 3rem; margin-top: 2rem; }
.footer-grid { display: grid; gap: 1.6rem; grid-template-columns: 1fr; }
@media (min-width: 760px) { .footer-grid { grid-template-columns: 2fr 1fr 1fr; } }
.site-footer h4 { font-family: var(--sans); font-size: .78rem; letter-spacing: .14em; text-transform: uppercase; color: var(--muted); margin: 0 0 .8rem; }
.site-footer ul { list-style: none; padding: 0; margin: 0; display: grid; gap: .5rem; }
.site-footer a { text-decoration: none; color: var(--ink-soft); }
.site-footer a:hover { color: var(--ink); }
.footer-bottom { margin-top: 2rem; padding-top: 1.4rem; border-top: 1px solid var(--line); color: var(--muted); font-size: .85rem; display: flex; flex-wrap: wrap; justify-content: space-between; gap: .6rem; }

/* ---- Floating WhatsApp ----------------------------------------------------*/
.wa-float {
  position: fixed; right: 16px; bottom: 16px; z-index: 60;
  width: 56px; height: 56px; border-radius: 50%; background: var(--wa);
  display: grid; place-items: center; box-shadow: 0 12px 26px -8px rgba(18,140,67,.7);
  color: #fff; text-decoration: none; transition: transform .12s ease;
}
.wa-float:hover { transform: scale(1.06); }
.wa-float svg { width: 30px; height: 30px; fill: currentColor; }
/* El botón flotante solo vive en la ficha del libro (donde la persona ya está
   informada y decidiendo). En el home distraía hacia el chat antes de tiempo. */
body:not(.is-product) .wa-float { display: none; }

/* ===========================================================================
   PÁGINA DE PRODUCTO
   =========================================================================== */
.crumbs { font-size: .9rem; color: var(--muted); padding-top: 1.4rem; }
.crumbs a { text-decoration: none; color: var(--muted); }
.crumbs a:hover { color: var(--ink); }

.product { display: grid; gap: 2rem; grid-template-columns: 1fr; padding-top: 1.2rem; }
@media (min-width: 860px) { .product { grid-template-columns: 0.9fr 1.1fr; gap: 3rem; align-items: start; } }

.product-cover { position: sticky; top: 84px; }
.product-cover .cover { border-radius: var(--radius); border: 1px solid var(--line); box-shadow: var(--shadow); max-width: 360px; }
.product-illus { margin: 0; max-width: 400px; }
@media (max-width: 859px) { .product-cover { position: static; } .product-cover .cover, .product-illus { max-width: 320px; margin-inline: auto; } }

.product h1 { font-size: clamp(2.1rem, 6vw, 3.1rem); margin: .4rem 0 .2rem; }
.product .p-sub { font-family: var(--serif); font-style: italic; font-size: 1.25rem; color: var(--ink-soft); }
.product .p-hook { font-size: 1.15rem; color: var(--ink); margin: 1.3rem 0; }
.p-buybar { display: flex; flex-wrap: wrap; align-items: center; gap: 1rem; margin: 1.4rem 0; padding: 1.1rem; background: var(--paper-2); border: 1px solid var(--line); border-radius: var(--radius); }
.p-buybar .price { font-size: 1.8rem; }
.p-meta { display: flex; flex-wrap: wrap; gap: .4rem 1rem; color: var(--muted); font-family: var(--mono); font-size: .78rem; letter-spacing: .02em; margin-top: .6rem; }
.p-meta span { display: inline-flex; align-items: center; gap: .7rem; }
.p-meta span:not(:last-child)::after { content: "·"; color: var(--accent); }

.p-block { margin: 2.2rem 0; }
.p-block h2 { font-size: 1.4rem; margin-bottom: .8rem; }
.p-list { list-style: none; padding: 0; margin: 0; display: grid; gap: .65rem; }
.p-list li { display: flex; gap: .7rem; align-items: flex-start; color: var(--ink-soft); }
.p-list li::before { content: "✓"; color: var(--wa-dark); font-weight: 700; flex: none; }

.chapters { display: grid; gap: .7rem; }
.chapter { display: flex; gap: 1rem; padding: 1rem; border: 1px solid var(--line); border-radius: 12px; background: var(--card); }
.chapter .cn { font-family: var(--mono); color: var(--accent); font-weight: 500; font-size: 1rem; flex: none; padding-top: .15rem; }
.chapter h4 { font-family: var(--sans); font-weight: 700; margin: 0 0 .2rem; }
.chapter p { margin: 0; color: var(--muted); font-size: .92rem; }

.note { font-size: .85rem; color: var(--muted); font-style: italic; }

.callout { background: var(--paper-2); border-left: 3px solid var(--accent); padding: 1rem 1.2rem; border-radius: 0 10px 10px 0; font-family: var(--serif); font-style: italic; font-size: 1.15rem; color: var(--ink); }

.crosssell { display: grid; gap: 1rem; grid-template-columns: 1fr; }

/* En celular el cross-sell va como FILA compacta (miniatura + texto al lado).
   Apilado ocupaba ~511px por libro: dos pantallas para ver "otros libros".
   La gente compra del celular; esta sección tiene que ser un vistazo, no un muro. */
@media (max-width: 640px) {
  .crosssell .card {
    display: grid; grid-template-columns: 92px minmax(0, 1fr); align-items: center;
    gap: .9rem; padding: .7rem; border-radius: 12px;
  }
  .crosssell .card:hover { transform: none; }
  .crosssell .card > .card-link { align-self: stretch; }
  .crosssell .card .illus.card-illus {
    aspect-ratio: 1; border: 1px solid var(--line); border-radius: 9px; height: 100%;
  }
  /* min-width:0 → la columna 1fr puede encogerse; sin esto el contenido
     desborda a la derecha y el botón "Ver el libro" se sale de la tarjeta. */
  .crosssell .card-body { padding: 0; gap: 0; min-width: 0; }
  .crosssell .card h3 { font-size: 1.12rem; margin: .2rem 0 .1rem; }
  .crosssell .card .sub {
    font-size: .88rem; margin: 0 0 .5rem;
    display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden;
  }
  .crosssell .card-foot { margin-top: 0; gap: .5rem .6rem; flex-wrap: wrap; }
  /* el botón NO crece (evita anchos gigantes que desbordan) y puede encogerse;
     si no cabe junto al precio, baja de línea por el flex-wrap del foot. */
  .crosssell .card-foot .btn { flex: 0 1 auto; justify-content: center; white-space: nowrap; }
  .crosssell .card-foot .price { font-size: 1.1rem; }
  /* min-height 44px: el área táctil mínima cómoda en celular. */
  .crosssell .card-foot .btn { padding: .6rem 1rem; font-size: .9rem; min-height: 44px; }
}
@media (min-width: 640px) { .crosssell { grid-template-columns: 1fr 1fr; } }

.sr-only { position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px; overflow: hidden; clip: rect(0,0,0,0); border: 0; }

/* ---- Barra de compra fija (móvil, página de producto) --------------------*/
.buy-sticky {
  position: fixed; left: 0; right: 0; bottom: 0; z-index: 60;
  display: none; align-items: center; justify-content: space-between; gap: .8rem;
  background: var(--card); border-top: 1px solid var(--line-strong);
  padding: .7rem .9rem calc(.7rem + env(safe-area-inset-bottom));
  box-shadow: 0 -12px 30px -16px rgba(27,23,20,.7);
}
.buy-sticky .bs-price { display: flex; flex-direction: column; line-height: 1.05; flex: none; }
.buy-sticky .bs-price .price { font-size: 1.5rem; }
.buy-sticky .bs-price small { font-size: .72rem; color: var(--muted); }
/* Botón grande y protagonista, en la zona del pulgar. */
.buy-sticky .btn { flex: 1; justify-content: center; min-height: 52px; font-size: 1.05rem; padding: .8rem 1rem; }
@media (max-width: 859px) {
  .buy-sticky { display: flex; }
  body.is-product .wa-float { display: none; }
  body.is-product { padding-bottom: 84px; }
}

/* ---- Foco de teclado visible (accesibilidad) -----------------------------*/
a:focus-visible, .btn:focus-visible, summary:focus-visible, details:focus-visible {
  outline: 3px solid var(--accent); outline-offset: 2px; border-radius: 6px;
}
@media (prefers-reduced-motion: reduce) {
  * { scroll-behavior: auto !important; transition: none !important; animation: none !important; }
}

/* ---- Aparición al scroll --------------------------------------------------
   Progressive enhancement: el estado oculto SOLO se aplica cuando el JS marca
   <html class="js-anim">. Sin JS (o con prefers-reduced-motion) las secciones
   se ven normalmente — nunca quedan invisibles. El hero no entra (va arriba). */
html.js-anim .section {
  opacity: 0;
  transform: translateY(18px);
  transition: opacity .7s ease, transform .7s ease;
}
html.js-anim .section.in {
  opacity: 1;
  transform: none;
}

/* ---- Imagen de tarjeta de catálogo ---------------------------------------*/
.hero-copy .eyebrow { display: inline-block; margin-bottom: 1rem; }
.card .illus.card-illus { border: 0; border-radius: 0; box-shadow: none; border-bottom: 1px solid var(--line); aspect-ratio: 4 / 3; }
.card .illus.card-illus img { width: 100%; height: 100%; object-fit: cover; }

/* ---- Modal de combo (upsell) ---------------------------------------------*/
.combo-modal[hidden] { display: none; }
.combo-modal { position: fixed; inset: 0; z-index: 100; display: flex; align-items: center; justify-content: center; padding: 20px; }
.combo-overlay { position: absolute; inset: 0; background: rgba(26,26,26,.55); }
.combo-card {
  position: relative; background: var(--paper); border: 1px solid var(--line);
  border-radius: 16px; max-width: 440px; width: 100%; padding: 1.8rem 1.7rem;
  box-shadow: 0 30px 70px -22px rgba(0,0,0,.55); animation: comboPop .18s ease;
}
@keyframes comboPop { from { transform: translateY(10px) scale(.98); opacity: 0; } to { transform: none; opacity: 1; } }
.combo-x { position: absolute; top: .5rem; right: .8rem; background: none; border: 0; font-size: 1.7rem; line-height: 1; color: var(--muted); cursor: pointer; }
.combo-x:hover { color: var(--ink); }
.combo-card h3 { font-size: 1.5rem; margin: .5rem 0 .35rem; }
.combo-pitch { color: var(--ink-soft); margin: 0 0 1.2rem; font-size: 1rem; }
.combo-books { display: flex; gap: .7rem; margin-bottom: 1.4rem; }
.combo-book { flex: 1; display: flex; flex-direction: column; gap: .45rem; background: var(--card); border: 1px solid var(--line); border-radius: 10px; padding: .5rem; text-align: center; }
.combo-book img { width: 100%; aspect-ratio: 1; object-fit: cover; border-radius: 6px; background: #EDEAE3; }
.combo-book strong { display: block; font-family: var(--sans); font-weight: 700; font-size: .82rem; line-height: 1.12; margin-bottom: .15rem; }
.combo-book span { font-family: var(--mono); font-size: .72rem; color: var(--cta); }
.combo-actions { display: grid; gap: .6rem; }
.combo-actions .btn { font-size: .98rem; }
.combo-actions .btn-ghost { font-size: .9rem; padding-block: .7rem; }