/* =========================================================================
   MR2-Dubbing — Diseño premium (modo claro, Apple-style)
   ------------------------------------------------------------------------
   Sistema de diseño completo para la landing.
   Tipografía: Geist (Google Fonts).
   Acento: azul tinta #0066cc.
   ------------------------------------------------------------------------ */

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

* { margin: 0; padding: 0; }

html {
  -webkit-text-size-adjust: 100%;
  text-size-adjust: 100%;
  scroll-behavior: smooth;
  scroll-padding-top: 72px;
}

body {
  min-height: 100vh;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  text-rendering: optimizeLegibility;
  background: var(--bg);
  color: var(--ink);
  font-family: var(--font-body);
  font-size: 16px;
  font-weight: 400;
  overflow-x: hidden;
}

img,
picture,
video,
canvas,
svg {
  display: block;
  max-width: 100%;
  height: auto;
}

input,
button,
textarea,
select { font: inherit; color: inherit; }

a { color: inherit; text-decoration: none; }

ul,
ol { list-style: none; }

button {
  background: none;
  border: 0;
  cursor: pointer;
  color: inherit;
}

/* ---------- Design tokens ---------- */
:root {
  --font-body: "Titillium Web", "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI",
    "Helvetica Neue", Arial, sans-serif;
  --font-display: "Titillium Web", "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI",
    "Helvetica Neue", Arial, sans-serif;

  /* Color */
  --bg: #ffffff;
  --bg-soft: #fafafa;
  --bg-surface: #f5f5f7;
  --bg-elevated: #ffffff;
  --ink: #0a0a0a;
  --ink-soft: #4a4a4a;
  --ink-faint: #8e8e93;
  --line: #e5e5e7;
  --line-strong: #d2d2d7;
  --accent: #0066cc;
  --accent-strong: #004999;
  --accent-soft: #e6f0fc;
  --accent-ink: #ffffff;

  /* Shadows */
  --shadow-xs: 0 1px 2px rgba(0, 0, 0, 0.04);
  --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.04);
  --shadow-md: 0 4px 16px rgba(0, 0, 0, 0.06);
  --shadow-lg: 0 12px 40px rgba(0, 0, 0, 0.08);

  /* Radii */
  --radius-sm: 10px;
  --radius-md: 16px;
  --radius-lg: 24px;
  --radius-pill: 999px;

  /* Layout */
  --maxw: 1200px;
  --maxw-narrow: 820px;
  --maxw-prose: 720px;
  --section-y: clamp(64px, 9vw, 120px);

  /* Motion */
  --ease: cubic-bezier(0.22, 1, 0.36, 1);
  --t-fast: 200ms;
  --t-base: 350ms;
  --t-slow: 600ms;
}

/* ---------- Tipografía ---------- */
body {
  font-feature-settings: "ss01", "cv11";
}

h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-display);
  color: var(--ink);
  letter-spacing: -0.02em;
  line-height: 1.15;
  font-weight: 700;
}

h1 { font-size: clamp(2.4rem, 5.4vw, 4.4rem); font-weight: 800; letter-spacing: -0.035em; }
h2 { font-size: clamp(1.6rem, 3.2vw, 2.4rem); font-weight: 700; }
h3 { font-size: clamp(1.25rem, 2vw, 1.5rem); font-weight: 600; }
h4 { font-size: 1.125rem; font-weight: 600; }

p { color: var(--ink-soft); }

strong, b { color: var(--ink); font-weight: 600; }

/* ---------- Layout helpers ---------- */
.container {
  width: 100%;
  max-width: var(--maxw);
  margin-inline: auto;
  padding-inline: clamp(20px, 4vw, 32px);
}

.container--narrow { max-width: var(--maxw-narrow); }
.container--prose  { max-width: var(--maxw-prose); }

.section {
  padding-block: var(--section-y);
}

.eyebrow {
  display: inline-block;
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 1rem;
}

.section-head {
  text-align: center;
  max-width: 720px;
  margin-inline: auto;
  margin-bottom: clamp(40px, 6vw, 72px);
}

.section-head h2 { color: var(--ink); }

/* En pantallas grandes, evita que el h2 del header de precios se rompa en dos líneas */
@media (min-width: 992px) {
  .section-head--nowrap h2 {
    white-space: nowrap;
    font-size: clamp(1.5rem, 2.6vw, 1.875rem);
  }
}

.section-head p {
  margin-top: 1rem;
  font-size: 1.0625rem;
  color: var(--ink-soft);
  line-height: 1.55;
}

/* =========================================================================
   NAVBAR
   ========================================================================= */
.nav {
  position: fixed;
  inset: 0 0 auto 0;
  z-index: 100;
  background: rgba(255, 255, 255, 0.72);
  backdrop-filter: saturate(180%) blur(20px);
  -webkit-backdrop-filter: saturate(180%) blur(20px);
  border-bottom: 1px solid transparent;
  transition: background var(--t-base) var(--ease),
              border-color var(--t-base) var(--ease),
              padding var(--t-base) var(--ease);
}

.nav.is-scrolled {
  background: rgba(255, 255, 255, 0.92);
  border-bottom-color: var(--line);
}

.nav__inner {
  max-width: var(--maxw);
  margin-inline: auto;
  padding: 14px clamp(20px, 4vw, 32px);
  display: flex;
  align-items: center;
  gap: 24px;
  transition: padding var(--t-base) var(--ease);
}

.nav.is-scrolled .nav__inner { padding-block: 10px; }

.nav__brand {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  font-weight: 700;
  font-size: 1.0625rem;
  color: var(--ink);
  letter-spacing: -0.01em;
}

.nav__brand-mark {
  width: 22px;
  height: 22px;
  background: var(--accent);
  border-radius: 5px;
  transform: rotate(45deg);
  flex-shrink: 0;
  transition: transform var(--t-base) var(--ease), background var(--t-base) var(--ease);
}

.nav__brand:hover .nav__brand-mark {
  transform: rotate(135deg);
  background: var(--accent-strong);
}

.nav__toggle {
  display: none;
  width: 40px;
  height: 40px;
  margin-left: auto;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius-sm);
  color: var(--ink);
  transition: background var(--t-fast) var(--ease);
}

.nav__toggle:hover { background: var(--bg-surface); }

.nav__toggle svg { width: 22px; height: 22px; }

.nav__menu {
  display: flex;
  align-items: center;
  gap: 4px;
  margin-left: auto;
}

.nav__link {
  position: relative;
  display: inline-block;
  padding: 8px 12px;
  font-size: 0.8125rem;
  font-weight: 500;
  letter-spacing: 0.01em;
  color: var(--ink-soft);
  border-radius: var(--radius-sm);
  transition: color var(--t-fast) var(--ease);
}

.nav__link::after {
  content: "";
  position: absolute;
  left: 12px;
  right: 12px;
  bottom: 4px;
  height: 1px;
  background: var(--accent);
  transform: scaleX(0);
  transform-origin: left center;
  transition: transform var(--t-base) var(--ease);
}

.nav__link:hover,
.nav__link.is-active {
  color: var(--ink);
}

.nav__link:hover::after,
.nav__link.is-active::after { transform: scaleX(1); }

.nav__backdrop {
  position: fixed;
  inset: 0;
  background: rgba(10, 10, 10, 0.4);
  opacity: 0;
  visibility: hidden;
  transition: opacity var(--t-base) var(--ease), visibility var(--t-base) var(--ease);
  z-index: 98;
}

.nav.is-open .nav__backdrop {
  opacity: 1;
  visibility: visible;
}

/* ---------- Reveal on scroll ---------- */
[data-reveal] {
  opacity: 0;
  transform: translateY(16px);
  transition: opacity var(--t-slow) var(--ease),
              transform var(--t-slow) var(--ease);
  will-change: opacity, transform;
}

[data-reveal].is-visible {
  opacity: 1;
  transform: none;
}

/* =========================================================================
   HERO
   ========================================================================= */
.hero {
  position: relative;
  padding: clamp(120px, 16vw, 200px) 0 clamp(64px, 9vw, 120px);
  background: var(--bg);
  overflow: hidden;
}

.hero::before {
  content: "";
  position: absolute;
  top: 20%;
  left: 50%;
  transform: translateX(-50%);
  width: 800px;
  height: 800px;
  background: radial-gradient(circle, var(--accent-soft) 0%, transparent 70%);
  opacity: 0.6;
  filter: blur(80px);
  z-index: 0;
  pointer-events: none;
}

/* Variante con imagen de fondo cinematográfica — usa --hero-bg para personalizarla */
.hero--bg {
  background: #222 var(--hero-bg, url('/img/prueba2_1.jpg')) center / cover no-repeat;
  color: var(--ink);
}

.hero--bg::before {
  background: rgba(255, 255, 255, 0.62);
  width: 100%;
  height: 100%;
  top: 0;
  left: 0;
  transform: none;
  filter: none;
  opacity: 1;
  backdrop-filter: blur(1px);
  -webkit-backdrop-filter: blur(1px);
}

.hero--bg .hero__title { color: var(--ink); }
.hero--bg .hero__lede p { color: var(--ink-soft); }

.hero__inner {
  position: relative;
  z-index: 1;
  max-width: 920px;
}

/* Variante con el contenido centrado (página Videos) */
.hero__inner--center {
  text-align: center;
  margin-inline: auto;
  max-width: 720px;
}
.hero__inner--center .hero__title-rule { margin-inline: auto; }

/* Variante con el contenido alineado a la derecha (página Videos) */
.hero__inner--right {
  text-align: right;
  margin-left: auto;
  max-width: 720px;
}
.hero__inner--right .hero__title-rule { margin-left: auto; }
.hero__inner--right .hero__lede { align-items: flex-end; }

.hero__title {
  font-size: clamp(2.5rem, 6.5vw, 5rem);
  font-weight: 800;
  letter-spacing: -0.04em;
  line-height: 0.98;
  color: var(--ink);
  margin-bottom: 2rem;
}

/* Variante más pequeña para h1 que se sienten demasiado grandes (p.ej. mailnew) */
.hero__title--sm {
  font-size: clamp(1.5rem, 3.2vw, 2.25rem);
  line-height: 1.15;
  letter-spacing: -0.025em;
}

.hero__title-rule {
  display: block;
  width: 64px;
  height: 3px;
  background: var(--accent);
  margin: 1.5rem 0 2.5rem;
  border-radius: 2px;
}

.hero__lede {
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
  margin-bottom: 2.5rem;
}

.hero__lede p {
  font-size: 1.0625rem;
  font-weight: 500;
  color: var(--ink-soft);
  letter-spacing: 0.005em;
}

.hero__cta {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 14px 28px;
  background: var(--ink);
  color: var(--accent-ink);
  border-radius: var(--radius-pill);
  font-size: 0.875rem;
  font-weight: 600;
  letter-spacing: 0.01em;
  transition: background var(--t-base) var(--ease),
              transform var(--t-base) var(--ease);
}

.hero__cta:hover {
  background: var(--accent);
  transform: translateY(-2px);
}

.hero__cta svg { width: 16px; height: 16px; transition: transform var(--t-base) var(--ease); }

.hero__cta:hover svg { transform: translateX(3px); }

/* =========================================================================
   INTRO (jumbotron)
   ========================================================================= */
.intro {
  padding-block: var(--section-y);
  background: var(--bg-soft);
}

.intro__inner { max-width: 880px; margin-inline: auto; }

.intro__head {
  text-align: center;
  margin-bottom: 3rem;
}

.intro__head h2 {
  font-size: clamp(1.4rem, 2.6vw, 1.875rem);
  font-weight: 600;
  letter-spacing: -0.02em;
  line-height: 1.3;
  color: var(--ink);
}

.intro__body p {
  font-size: 1.0625rem;
  line-height: 1.7;
  color: var(--ink-soft);
  margin-bottom: 1.25rem;
}

.intro__body p:last-child { margin-bottom: 0; }

/* =========================================================================
   CTA STRIP (Click AQUÍ)
   ========================================================================= */
.cta-strip {
  padding-block: clamp(48px, 6vw, 72px);
  text-align: center;
}

.cta-strip__btn {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 22px 40px;
  background: rgb(251, 86, 20);
  color: #ffffff;
  border-radius: var(--radius-pill);
  font-size: 1rem;
  font-weight: 600;
  letter-spacing: 0.005em;
  transition: background var(--t-base) var(--ease),
              transform var(--t-base) var(--ease),
              box-shadow var(--t-base) var(--ease);
  box-shadow: var(--shadow-md);
}

.cta-strip__btn:hover {
  background: rgb(220, 72, 12);
  color: #ffffff;
  transform: translateY(-2px);
  box-shadow: var(--shadow-lg);
}

.cta-strip__btn svg {
  width: 18px;
  height: 18px;
  flex-shrink: 0;
}

/* =========================================================================
   NOVEDADES — feature cards con vídeo
   ========================================================================= */
.novedades {
  padding-block: var(--section-y);
  background: #ffffff;
}

.novedad {
  display: grid;
  gap: 2.5rem;
  padding-block: clamp(40px, 5vw, 64px);
  border-top: 1px solid var(--line);
}

.novedad:first-of-type { border-top: 0; padding-top: 0; }
.novedad:last-of-type { padding-bottom: 0; }

.novedad__head h3 {
  font-size: clamp(1.5rem, 2.4vw, 1.875rem);
  font-weight: 700;
  color: var(--ink);
  margin-bottom: 1rem;
}

.novedad__head p {
  font-size: 1.0625rem;
  line-height: 1.65;
  color: var(--ink-soft);
  max-width: 780px;
}

.novedad__media {
  position: relative;
  width: 100%;
  aspect-ratio: 16 / 9;
  border-radius: var(--radius-md);
  overflow: hidden;
  background: #000;
  box-shadow: var(--shadow-md);
  border: 1px solid var(--line);
}

.novedad__media iframe {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  border: 0;
}

/* =========================================================================
   CARACTERÍSTICAS — lista con bullets
   ========================================================================= */
.caracteristicas {
  padding-block: var(--section-y);
  background: var(--bg-soft);
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}

.feature-list {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 0 48px;
  max-width: 1080px;
  margin-inline: auto;
}

.feature-list__item {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  padding: 16px 0;
  border-bottom: 1px solid var(--line);
  font-size: 1rem;
  color: var(--ink-soft);
  line-height: 1.5;
}

.feature-list__bullet {
  flex-shrink: 0;
  width: 7px;
  height: 7px;
  margin-top: 9px;
  background: var(--accent);
  border-radius: 50%;
}

/* =========================================================================
   FEATURES — subsecciones con texto + imágenes
   ========================================================================= */
.features { padding-block: var(--section-y); }

.feature-block {
  padding-block: clamp(48px, 6vw, 80px);
  border-top: 1px solid var(--line);
}

.feature-block:first-of-type { border-top: 0; padding-top: 0; }

.feature-block__head h2 {
  position: relative;
  display: inline-block;
  font-size: clamp(1.6rem, 3vw, 2.25rem);
  font-weight: 700;
  letter-spacing: -0.02em;
  margin-bottom: 1.5rem;
  padding-bottom: 0.85rem;
}

.feature-block__head h2::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: 0;
  width: 56px;
  height: 2px;
  background: var(--accent);
}

.feature-block__head h3 {
  font-size: 1.375rem;
  font-weight: 600;
  margin: 1.5rem 0 1rem;
  color: var(--ink);
}

.feature-block__body p {
  font-size: 1.0625rem;
  line-height: 1.7;
  color: var(--ink-soft);
  margin-bottom: 1.25rem;
  max-width: 820px;
}

.feature-block__body p:last-child { margin-bottom: 0; }

.feature-block__image {
  margin: 1.5rem 0;
  border-radius: var(--radius-md);
  overflow: hidden;
  border: 1px solid var(--line);
  box-shadow: var(--shadow-sm);
  transition: transform var(--t-base) var(--ease),
              box-shadow var(--t-base) var(--ease);
}

.feature-block__image a { display: block; }

.feature-block__image img {
  width: 100%;
  height: auto;
  display: block;
  transition: transform var(--t-slow) var(--ease);
}

.feature-block__image:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}

.feature-block__image:hover img {
  transform: scale(1.015);
}

/* Subsección asimétrica: dos columnas con imágenes (gráfico vertical y cast) */
.feature-block--split .row-split {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1.5rem;
}

/* Subsección: dos columnas con texto + imagen */
.feature-block--two-col .row-two {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 3rem;
  align-items: start;
}

.feature-block--two-col p { max-width: none; }

/* =========================================================================
   PRECIOS — cards y tabla
   ========================================================================= */
.precios { padding-block: var(--section-y); }

.price-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 1.25rem;
  margin-bottom: 3rem;
}

.price-grid + .price-grid { margin-top: 1.25rem; }

.price-card {
  background: var(--bg-elevated);
  border: 1px solid var(--line);
  border-radius: var(--radius-md);
  overflow: hidden;
  transition: transform var(--t-base) var(--ease),
              box-shadow var(--t-base) var(--ease),
              border-color var(--t-base) var(--ease);
  display: flex;
  flex-direction: column;
}

.price-card:hover {
  transform: translateY(-3px);
  box-shadow: var(--shadow-md);
  border-color: var(--line-strong);
}

.price-card__head {
  padding: 1.125rem 1.25rem;
  background: var(--bg-surface);
  border-bottom: 1px solid var(--line);
  font-size: 1rem;
  font-weight: 700;
  color: var(--ink);
  letter-spacing: -0.005em;
}

.price-card__body {
  padding: 1.5rem 1.25rem;
  flex: 1;
}

.price-card__body p {
  position: relative;
  padding-left: 1.125rem;
  font-size: 0.9375rem;
  color: var(--ink-soft);
  line-height: 1.5;
  margin: 0.5rem 0;
}

.price-card__body p::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.55em;
  width: 6px;
  height: 6px;
  background: var(--accent);
  border-radius: 50%;
}

.price-card__body p.card-text {
  padding-left: 0;
  color: var(--ink-soft);
  font-size: 0.9375rem;
  margin: 0 0 0.5rem;
}

.price-card__body p.card-text::before { display: none; }

.price-card__body h5.card-title {
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--accent);
  margin-top: 1.25rem;
  padding-top: 1.25rem;
  border-top: 1px solid var(--line);
  letter-spacing: 0.01em;
}

/* Tabla de precios */
.price-table-wrap {
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
  border: 1px solid var(--line);
  border-radius: var(--radius-md);
  margin: 2.5rem 0 1rem;
  background: var(--bg-elevated);
}

.price-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.9375rem;
  min-width: 640px;
}

.price-table thead th {
  background: var(--bg-surface);
  color: var(--ink);
  font-weight: 600;
  font-size: 0.75rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  padding: 1rem 0.875rem;
  text-align: center;
  border-bottom: 1px solid var(--line);
}

.price-table thead th:first-child { text-align: left; }

.price-table tbody td {
  padding: 0.95rem 0.875rem;
  color: var(--ink-soft);
  text-align: center;
  border-top: 1px solid var(--line);
  vertical-align: middle;
}

.price-table tbody td:first-child {
  text-align: left;
  color: var(--ink);
  font-weight: 600;
}

.price-table a.aju {
  color: var(--accent);
  font-weight: 600;
  border-bottom: 1px solid transparent;
  transition: border-color var(--t-fast) var(--ease), color var(--t-fast) var(--ease);
}

.price-table a.aju:hover {
  color: var(--accent-strong);
  border-bottom-color: var(--accent);
}

.price-table-note {
  font-size: 0.8125rem;
  color: var(--ink-faint);
  margin-top: 0.5rem;
}

/* Notas (transferible, plugin lhex, etc.) */
.price-notes {
  margin-top: 2.5rem;
  font-size: 0.9375rem;
  color: var(--ink-soft);
  line-height: 1.7;
  max-width: 880px;
}

.price-notes b {
  color: var(--ink);
  font-weight: 600;
}

/* =========================================================================
   DESCARGAS — cards
   ========================================================================= */
.descargas { padding-block: var(--section-y); }

.download-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 1.5rem;
}

.download-card {
  background: var(--bg-elevated);
  border: 1px solid var(--line);
  border-radius: var(--radius-md);
  overflow: hidden;
  display: flex;
  flex-direction: column;
  transition: transform var(--t-base) var(--ease),
              box-shadow var(--t-base) var(--ease);
}

.download-card:hover {
  transform: translateY(-3px);
  box-shadow: var(--shadow-md);
}

.download-card__media {
  border-bottom: 1px solid var(--line);
  background: var(--bg-surface);
  aspect-ratio: 4 / 3;
  overflow: hidden;
}

.download-card__media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.download-card__body {
  padding: 1.5rem;
  display: flex;
  flex-direction: column;
  flex: 1;
}

.download-card__title {
  font-size: 1.0625rem;
  font-weight: 600;
  color: var(--ink);
  margin-bottom: 0.4rem;
}

.download-card__text {
  font-size: 0.9375rem;
  color: var(--ink-soft);
  line-height: 1.5;
  margin-bottom: 1.25rem;
  flex: 1;
}

.download-card__btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 10px 22px;
  background: var(--ink);
  color: var(--accent-ink);
  border-radius: var(--radius-pill);
  font-size: 0.8125rem;
  font-weight: 600;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  align-self: flex-start;
  transition: background var(--t-base) var(--ease);
}

.download-card__btn:hover { background: var(--accent); }

.download-card__btn svg { width: 14px; height: 14px; }

/* =========================================================================
   HISTORIAL — acordeón nativo
   ========================================================================= */
.historial { padding-block: var(--section-y); }

.historial-hint {
  text-align: center;
  color: var(--ink-faint);
  font-size: 0.875rem;
  font-style: italic;
  margin: -1rem 0 2rem;
}

.version-list {
  max-width: var(--maxw-narrow);
  margin-inline: auto;
  background: var(--bg-elevated);
  border: 1px solid var(--line);
  border-radius: var(--radius-md);
  overflow: hidden;
}

.version-item {
  border-bottom: 1px solid var(--line);
}

.version-item:last-child { border-bottom: none; }

.version-item[open] { background: var(--bg-soft); }

.version-item__head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 1.125rem 1.5rem;
  font-size: 0.9375rem;
  font-weight: 600;
  color: var(--ink);
  cursor: pointer;
  list-style: none;
  user-select: none;
  transition: background var(--t-fast) var(--ease);
}

.version-item__head::-webkit-details-marker { display: none; }

.version-item__head::marker { display: none; content: ""; }

.version-item__head:hover { background: var(--bg-surface); }

.version-item__head::after {
  content: "";
  flex-shrink: 0;
  width: 28px;
  height: 28px;
  background: var(--accent);
  border-radius: 50%;
  position: relative;
  transition: transform var(--t-base) var(--ease);
}

.version-item__head::after {
  /* plus icon (×) — dos líneas */
  background-image: linear-gradient(currentColor, currentColor),
                    linear-gradient(currentColor, currentColor);
  background-size: 12px 1.5px, 1.5px 12px;
  background-position: center, center;
  background-repeat: no-repeat;
  background-color: var(--accent);
  color: var(--accent-ink);
}

.version-item[open] .version-item__head::after {
  /* gira 45° para formar la × */
  transform: rotate(45deg);
}

.version-item__body {
  padding: 0 1.5rem 1.5rem;
  color: var(--ink-soft);
  font-size: 0.9375rem;
  line-height: 1.6;
}

.version-item__body ul {
  padding-left: 1.25rem;
  list-style: disc;
}

.version-item__body li {
  margin-bottom: 0.4rem;
}

.version-item__body img {
  margin: 0.75rem 0;
  border-radius: var(--radius-sm);
  border: 1px solid var(--line);
  max-width: 100%;
}

/* =========================================================================
   SOLUCIÓN A PROBLEMAS — acordeón nativo
   ========================================================================= */
.solucion { padding-block: var(--section-y); }

.problem-list {
  max-width: var(--maxw-narrow);
  margin-inline: auto;
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

.problem-item {
  background: var(--bg-elevated);
  border: 1px solid var(--line);
  border-radius: var(--radius-md);
  overflow: hidden;
  transition: border-color var(--t-fast) var(--ease);
}

.problem-item[open] { border-color: var(--line-strong); }

.problem-item__head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 1.125rem 1.5rem;
  font-size: 0.9375rem;
  font-weight: 600;
  color: var(--ink);
  cursor: pointer;
  list-style: none;
  user-select: none;
  transition: background var(--t-fast) var(--ease);
}

.problem-item__head::-webkit-details-marker { display: none; }
.problem-item__head::marker { display: none; content: ""; }

.problem-item__head:hover { background: var(--bg-surface); }

.problem-item__icon {
  flex-shrink: 0;
  width: 14px;
  height: 14px;
  border-right: 2px solid var(--ink-soft);
  border-bottom: 2px solid var(--ink-soft);
  transform: rotate(45deg);
  transition: transform var(--t-base) var(--ease),
              border-color var(--t-base) var(--ease);
}

.problem-item[open] .problem-item__icon {
  transform: rotate(-135deg);
  border-color: var(--accent);
}

.problem-item__body {
  padding: 0 1.5rem 1.5rem;
  color: var(--ink-soft);
  font-size: 0.9375rem;
  line-height: 1.7;
}

.problem-item__body p { margin-bottom: 1rem; }
.problem-item__body p:last-child { margin-bottom: 0; }

.problem-item__body a {
  color: var(--accent);
  text-decoration: underline;
  text-underline-offset: 3px;
}

.problem-item__body img {
  margin: 1rem 0;
  border-radius: var(--radius-sm);
  border: 1px solid var(--line);
  max-width: 100%;
}

/* =========================================================================
   FOOTER
   ========================================================================= */
.footer {
  border-top: 1px solid var(--line);
  padding-block: 2.5rem;
  background: var(--bg);
}

.footer__inner {
  max-width: var(--maxw);
  margin-inline: auto;
  padding-inline: clamp(20px, 4vw, 32px);
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 1.5rem;
}

.footer__brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-size: 1rem;
  font-weight: 700;
  color: var(--ink);
  letter-spacing: -0.01em;
}

.footer__brand-mark {
  width: 14px;
  height: 14px;
  background: var(--accent);
  border-radius: 3px;
  transform: rotate(45deg);
}

.footer__meta {
  color: var(--ink-faint);
  font-size: 0.875rem;
  letter-spacing: 0.005em;
}

.footer__meta a {
  color: var(--ink-soft);
  font-weight: 600;
  border-bottom: 1px solid transparent;
  transition: border-color var(--t-fast) var(--ease), color var(--t-fast) var(--ease);
}

.footer__meta a:hover {
  color: var(--ink);
  border-bottom-color: var(--accent);
}

/* =========================================================================
   BACK TO TOP
   ========================================================================= */
.back-to-top {
  position: fixed;
  bottom: 24px;
  right: 24px;
  width: 44px;
  height: 44px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--ink);
  color: var(--accent-ink);
  border-radius: 50%;
  box-shadow: var(--shadow-md);
  opacity: 0;
  visibility: hidden;
  transform: translateY(8px);
  transition: opacity var(--t-base) var(--ease),
              visibility var(--t-base) var(--ease),
              transform var(--t-base) var(--ease),
              background var(--t-base) var(--ease);
  z-index: 90;
}

.back-to-top.is-visible {
  opacity: 1;
  visibility: visible;
  transform: none;
}

.back-to-top:hover {
  background: var(--accent);
}

.back-to-top svg {
  width: 18px;
  height: 18px;
}

/* =========================================================================
   UTILIDADES
   ========================================================================= */
.text-center { text-align: center; }
.mt-3 { margin-top: 1.5rem; }
.mt-4 { margin-top: 2rem; }
.mt-5 { margin-top: 3rem; }
.mb-0 { margin-bottom: 0; }
.d-none { display: none; }

/* =========================================================================
   ANIMATIONS / REDUCED MOTION
   ========================================================================= */
@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }
  [data-reveal] { opacity: 1; transform: none; }
}

/* =========================================================================
   FORM (página de contacto)
   ========================================================================= */
.form-card {
  max-width: 640px;
  margin-inline: auto;
  background: var(--bg-elevated);
  border: 1px solid var(--line);
  border-radius: var(--radius-md);
  padding: clamp(28px, 4vw, 48px);
  box-shadow: var(--shadow-sm);
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
}

.form-field { display: flex; flex-direction: column; gap: 0.4rem; }

.form-label {
  font-size: 0.8125rem;
  font-weight: 600;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: var(--ink-soft);
}

.form-input {
  width: 100%;
  padding: 12px 14px;
  background: var(--bg);
  border: 1px solid var(--line-strong);
  border-radius: var(--radius-sm);
  color: var(--ink);
  font-family: inherit;
  font-size: 0.9375rem;
  line-height: 1.5;
  transition: border-color var(--t-fast) var(--ease),
              box-shadow var(--t-fast) var(--ease);
  -webkit-appearance: none;
  appearance: none;
}

.form-input::placeholder { color: var(--ink-faint); }

.form-input:hover { border-color: var(--ink-faint); }

.form-input:focus {
  outline: none;
  border-color: var(--accent);
  box-shadow: 0 0 0 3px var(--accent-soft);
}

.form-input:invalid:not(:placeholder-shown) {
  border-color: #c43d3d;
}

.form-textarea {
  resize: vertical;
  min-height: 140px;
  font-family: inherit;
}

.form-honeypot {
  position: absolute;
  left: -9999px;
  width: 1px;
  height: 1px;
  overflow: hidden;
}

.form-check {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  font-size: 0.875rem;
  color: var(--ink-soft);
  line-height: 1.5;
}

.form-check__input {
  flex-shrink: 0;
  width: 18px;
  height: 18px;
  margin-top: 2px;
  accent-color: var(--accent);
  cursor: pointer;
}

.form-check__label {
  cursor: pointer;
  user-select: none;
}

.form-error {
  display: block;
  margin-top: 0.5rem;
  font-size: 0.8125rem;
  color: #c43d3d;
  font-weight: 500;
}

.form-check--error .form-check__label {
  color: #c43d3d;
}

.form-captcha {
  display: flex;
  justify-content: center;
  margin-block: 0.5rem;
}

.form-actions {
  display: flex;
  justify-content: center;
  margin-top: 0.5rem;
}

.form-submit {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 14px 48px;
  background: var(--ink);
  color: var(--accent-ink);
  border: 0;
  border-radius: var(--radius-pill);
  font-family: inherit;
  font-size: 0.875rem;
  font-weight: 600;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  cursor: pointer;
  transition: background var(--t-base) var(--ease),
              transform var(--t-base) var(--ease),
              box-shadow var(--t-base) var(--ease);
  box-shadow: var(--shadow-md);
}

.form-submit:hover {
  background: var(--accent);
  transform: translateY(-2px);
  box-shadow: var(--shadow-lg);
}

.form-submit:active { transform: translateY(0); }

/* =========================================================================
   ALERT (página de confirmación mailsend)
   ========================================================================= */
.alert {
  position: relative;
  padding: 1.25rem 1.5rem;
  border: 1px solid transparent;
  border-radius: var(--radius-md);
  font-size: 1rem;
  line-height: 1.5;
}

.alert-success {
  background: #e6f6ec;
  border-color: #b6e2c4;
  color: #166534;
}

.alert-success .display-4 {
  font-size: clamp(1.6rem, 3.5vw, 2.4rem);
  font-weight: 800;
  letter-spacing: -0.02em;
  color: #166534;
  margin: 0;
}

/* =========================================================================
   STICKY FOOTER (páginas con poco contenido, p.ej. mailsend / mailerror)
   ========================================================================= */
body.page--short {
  display: flex;
  flex-direction: column;
  min-height: 100vh;
}

body.page--short .footer {
  margin-top: auto;
}

/* =========================================================================
   PAGE HEAD (cabecera compacta para páginas con poca hero, p.ej. mailnew)
   ========================================================================= */
.page-head {
  padding: clamp(56px, 6vw, 80px) 0 clamp(16px, 2vw, 24px);
  background: var(--bg);
}

.page-head__inner {
  max-width: 720px;
  margin-inline: auto;
  text-align: center;
}

.page-head__title {
  position: relative;
  display: inline-block;
  font-size: clamp(1.5rem, 3.2vw, 2.25rem);
  font-weight: 700;
  line-height: 1.15;
  letter-spacing: -0.025em;
  color: var(--ink);
  margin-bottom: 1.25rem;
  padding-bottom: 0.7rem;
}

.page-head__title::after {
  content: "";
  position: absolute;
  left: 50%;
  bottom: 0;
  transform: translateX(-50%);
  width: 48px;
  height: 2px;
  background: var(--accent);
}

.page-head__email {
  font-size: 1rem;
  color: var(--ink-soft);
  font-weight: 500;
}

.page-form {
  padding: 0 0 clamp(48px, 6vw, 80px);
}

/* =========================================================================
   RESPONSIVE
   ========================================================================= */

/* Tablet */
@media (max-width: 991px) {
  .nav__toggle { display: inline-flex; }
  .nav__menu {
    position: fixed;
    top: 64px;
    right: 16px;
    left: 16px;
    flex-direction: column;
    align-items: stretch;
    gap: 0;
    padding: 12px;
    background: var(--bg-elevated);
    border: 1px solid var(--line);
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-lg);
    transform: translateY(-12px);
    opacity: 0;
    visibility: hidden;
    transition: opacity var(--t-base) var(--ease),
                transform var(--t-base) var(--ease),
                visibility var(--t-base) var(--ease);
    z-index: 99;
  }
  .nav.is-open .nav__menu {
    opacity: 1;
    visibility: visible;
    transform: none;
  }
  .nav__menu .nav__link {
    display: block;
    padding: 12px 14px;
    border-radius: var(--radius-sm);
    font-size: 0.875rem;
  }
  .nav__menu .nav__link::after { display: none; }
  .nav__menu .nav__link:hover,
  .nav__menu .nav__link.is-active {
    background: var(--bg-surface);
  }

  .feature-block--two-col .row-two,
  .feature-block--split .row-split {
    grid-template-columns: 1fr;
  }
}

/* Móvil grande */
@media (max-width: 768px) {
  :root { --section-y: clamp(56px, 12vw, 88px); }
  html { scroll-padding-top: 64px; }

  .hero { padding-block: clamp(96px, 24vw, 140px) clamp(48px, 12vw, 72px); }
  .hero__title { font-size: clamp(2.125rem, 9vw, 3rem); }
  .hero__title-rule { width: 48px; margin-block: 1.25rem 2rem; }

  .intro__head h2 { font-size: 1.25rem; }
  .intro__body p { font-size: 1rem; }

  .section-head h2 { font-size: 1.5rem; }
  .section-head p { font-size: 1rem; }

  .cta-strip__btn { padding: 16px 28px; font-size: 0.875rem; }

  .novedad__head h3 { font-size: 1.375rem; }
  .novedad__head p { font-size: 1rem; }

  .feature-block__head h2 { font-size: 1.5rem; }
  .feature-block__head h3 { font-size: 1.25rem; }
  .feature-block__body p { font-size: 1rem; }

  .price-card__body p { font-size: 0.875rem; }
  .price-table { font-size: 0.8125rem; min-width: 560px; }
  .price-table thead th,
  .price-table tbody td { padding: 0.75rem 0.5rem; }

  .version-item__head,
  .problem-item__head { padding: 1rem 1.25rem; font-size: 0.875rem; }
  .version-item__body,
  .problem-item__body { padding-inline: 1.25rem; font-size: 0.875rem; }
}

/* Móvil */
@media (max-width: 575px) {
  body { font-size: 0.9375rem; }

  .nav__inner { padding: 12px 16px; }

  .hero__title { font-size: 2rem; }
  .hero__lede p { font-size: 0.9375rem; }
  .hero__cta { padding: 12px 22px; font-size: 0.8125rem; }

  .intro__head h2 { font-size: 1.125rem; line-height: 1.4; }

  .price-table { font-size: 0.75rem; min-width: 480px; }
  .price-table thead th,
  .price-table tbody td { padding: 0.6rem 0.4rem; }

  .footer__inner { flex-direction: column; align-items: flex-start; gap: 0.75rem; }
  .footer__meta { font-size: 0.8125rem; }

  .back-to-top {
    width: 40px;
    height: 40px;
    bottom: 16px;
    right: 16px;
  }
  .back-to-top svg { width: 16px; height: 16px; }
}

/* Móvil pequeño */
@media (max-width: 360px) {
  .hero__title { font-size: 1.75rem; }
  .section-head h2 { font-size: 1.25rem; }
  .feature-block__head h2 { font-size: 1.25rem; }
}