/* ============================================================
   ContaCloud — sistema de diseño
   Fraunces (títulos) · IBM Plex Sans (texto) · IBM Plex Mono (cifras)
   ============================================================ */

/* Oculta el distintivo "Powered by Netlify" (se inyecta en deploys por Drop) */
#nl-badge-frame,
[title="Powered by Netlify"] { display: none !important; }

:root {
  color-scheme: light;

  /* Paleta — base blanco/negro con acento teal */
  --paper:       #FFFFFF;
  --paper-deep:  #F4F5F5;
  --surface:     #FFFFFF;
  --ink:         #14181A;
  --ink-soft:    #4B5155;
  --ink-faint:   #869094;
  --brand:       #0E8C9E;
  --brand-deep:  #0A6E7D;
  --brand-tint:  #E1F1F3;
  --accent:      #14B8C9;
  --accent-tint: #DEF6F8;
  --line:        #E4E5E5;
  --line-strong: #CDD0D0;
  --danger:      #B4232A;
  --danger-tint: #FBECEC;
  --on-brand:    #FFFFFF;

  /* Tipografía */
  --font-display: "Fraunces", Georgia, "Times New Roman", serif;
  --font-body: "IBM Plex Sans", system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  --font-mono: "IBM Plex Mono", ui-monospace, "SFMono-Regular", Menlo, monospace;

  /* Escala tipográfica fluida */
  --step--1: clamp(0.83rem, 0.80rem + 0.14vw, 0.90rem);
  --step-0:  clamp(1.00rem, 0.96rem + 0.20vw, 1.09rem);
  --step-1:  clamp(1.18rem, 1.09rem + 0.45vw, 1.42rem);
  --step-2:  clamp(1.52rem, 1.34rem + 0.90vw, 2.05rem);
  --step-3:  clamp(1.95rem, 1.62rem + 1.65vw, 2.95rem);
  --step-4:  clamp(2.45rem, 1.95rem + 2.55vw, 3.85rem);

  /* Espaciado */
  --space-2xs: 0.375rem;
  --space-xs:  0.625rem;
  --space-sm:  1rem;
  --space-md:  1.5rem;
  --space-lg:  2.5rem;
  --space-xl:  4rem;
  --space-2xl: 6.5rem;

  --wrap: 1180px;
  --wrap-narrow: 760px;
  --pad-x: clamp(1.25rem, 6vw, 6rem);

  --radius: 14px;
  --radius-sm: 9px;
  --radius-pill: 999px;
  --shadow: 0 1px 2px rgba(0, 0, 0, .05), 0 14px 34px -14px rgba(0, 0, 0, .14);
  --shadow-lg: 0 2px 6px rgba(0, 0, 0, .06), 0 30px 64px -20px rgba(0, 0, 0, .2);
}

@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    color-scheme: dark;
    --paper:       #0D1012;
    --paper-deep:  #14181A;
    --surface:     #171C1E;
    --ink:         #EDEFEF;
    --ink-soft:    #A6ADAE;
    --ink-faint:   #737B7C;
    --brand:       #2CC3D4;
    --brand-deep:  #5AD3E0;
    --brand-tint:  #10262A;
    --accent:      #35CEDE;
    --accent-tint: #0E2529;
    --line:        #262C2E;
    --line-strong: #38403F;
    --danger:      #E8888C;
    --danger-tint: #2A1718;
    --on-brand:    #06181B;
    --shadow: 0 1px 2px rgba(0, 0, 0, .4), 0 14px 34px -14px rgba(0, 0, 0, .6);
    --shadow-lg: 0 2px 6px rgba(0, 0, 0, .45), 0 30px 64px -20px rgba(0, 0, 0, .65);
  }
}

:root[data-theme="dark"] {
  color-scheme: dark;
  --paper:       #0D1012;
  --paper-deep:  #14181A;
  --surface:     #171C1E;
  --ink:         #EDEFEF;
  --ink-soft:    #A6ADAE;
  --ink-faint:   #737B7C;
  --brand:       #2CC3D4;
  --brand-deep:  #5AD3E0;
  --brand-tint:  #10262A;
  --accent:      #35CEDE;
  --accent-tint: #0E2529;
  --line:        #262C2E;
  --line-strong: #38403F;
  --danger:      #E8888C;
  --danger-tint: #2A1718;
  --on-brand:    #06181B;
  --shadow: 0 1px 2px rgba(0, 0, 0, .4), 0 14px 34px -14px rgba(0, 0, 0, .6);
  --shadow-lg: 0 2px 6px rgba(0, 0, 0, .45), 0 30px 64px -20px rgba(0, 0, 0, .65);
}

/* ---------- Base ---------- */

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

html { scroll-behavior: smooth; scroll-padding-top: 5rem; }
@media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } }

body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: var(--font-body);
  font-size: var(--step-0);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

h1, h2, h3, h4 {
  font-family: var(--font-display);
  font-optical-sizing: auto;
  color: var(--ink);
  margin: 0;
  line-height: 1.12;
  letter-spacing: -0.015em;
  text-wrap: balance;
  font-weight: 600;
}

p { margin: 0; }
a { color: var(--brand-deep); text-decoration: none; }
a:hover { color: var(--brand); }
img, svg { display: block; max-width: 100%; }
strong { font-weight: 600; }

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

/* ---------- Utilidades ---------- */

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

.section { padding-block: var(--space-2xl); }
.section--tight { padding-block: var(--space-xl); }
.section + .section { border-top: 1px solid var(--line); }

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 0.55em;
  font-family: var(--font-mono);
  font-weight: 500;
  font-size: var(--step--1);
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--brand);
}
.eyebrow::before {
  content: "";
  width: 1.75rem;
  height: 1px;
  background: currentColor;
  opacity: 0.55;
}

.section-intro {
  display: flex;
  flex-direction: column;
  gap: var(--space-sm);
  max-width: var(--wrap-narrow);
  margin-bottom: var(--space-xl);
}
.section-intro h2 { font-size: var(--step-3); }
.section-intro p { font-size: var(--step-1); color: var(--ink-soft); line-height: 1.55; }

/* ---------- Botones ---------- */

.btn {
  --btn-pad-y: 0.9rem;
  font-family: var(--font-body);
  font-weight: 600;
  font-size: var(--step-0);
  line-height: 1;
  border: 1px solid transparent;
  border-radius: var(--radius-sm);
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.55em;
  padding: var(--btn-pad-y) 1.5rem;
  transition: background-color .16s ease, border-color .16s ease, color .16s ease, transform .16s ease;
}
.btn:active { transform: translateY(1px); }
.btn svg { width: 1em; height: 1em; }

.btn--primary { background: var(--brand); color: var(--on-brand); border-color: var(--brand); }
.btn--primary:hover { background: var(--brand-deep); border-color: var(--brand-deep); color: var(--on-brand); }

.btn--ghost { background: transparent; color: var(--ink); border-color: var(--line-strong); }
.btn--ghost:hover { border-color: var(--brand); color: var(--brand); }

.btn--accent { background: var(--brand); color: #fff; border-color: var(--brand); }
.btn--accent:hover { background: var(--brand-deep); border-color: var(--brand-deep); color: #fff; }

.btn--on-dark { background: rgba(255, 255, 255, 0.06); color: #fff; border-color: rgba(255, 255, 255, 0.35); }
.btn--on-dark:hover { background: rgba(255, 255, 255, 0.14); border-color: #fff; color: #fff; }

.btn--lg { --btn-pad-y: 1.1rem; padding-inline: 1.9rem; font-size: var(--step-1); }

/* ---------- Superficie / tarjeta ---------- */

.card {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius);
}

/* ---------- Navegación ---------- */

.nav {
  --nav-fg: #ffffff;
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 40;
  background: transparent;
  border-bottom: 1px solid transparent;
  transition: background-color .25s ease, border-color .25s ease, box-shadow .25s ease;
}
.nav--scrolled {
  --nav-fg: var(--ink);
  background: color-mix(in srgb, var(--surface) 92%, transparent);
  backdrop-filter: blur(10px);
  border-bottom-color: var(--line);
  box-shadow: var(--shadow);
}
.nav__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-md);
  padding-block: 0.85rem;
}
.brand { display: inline-flex; align-items: center; gap: 0.6rem; }
.brand__mark {
  width: 34px; height: 34px;
  display: grid; place-items: center;
  background: var(--brand); color: #fff;
  border-radius: 9px;
}
.brand__mark svg { width: 20px; height: 20px; }
.brand__name {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 1.3rem;
  letter-spacing: -0.02em;
  color: var(--nav-fg);
  transition: color .25s ease;
}
.nav__links { display: flex; align-items: center; gap: clamp(1rem, 3vw, 2.25rem); }
.nav__links a {
  font-size: var(--step--1);
  font-weight: 500;
  color: color-mix(in srgb, var(--nav-fg) 74%, transparent);
  letter-spacing: 0.01em;
  padding-block: 0.4rem;
  border-bottom: 2px solid transparent;
  transition: color .15s ease, border-color .15s ease;
}
.nav__links a:hover { color: var(--nav-fg); }
.nav__links a.is-active { color: var(--nav-fg); border-color: var(--accent); }
.nav__cta { display: inline-flex; align-items: center; gap: 0.6rem; }
.nav__cta .btn { padding-block: 0.7rem; font-size: var(--step--1); }
.btn--nav-ghost {
  background: transparent;
  color: var(--nav-fg);
  border-color: color-mix(in srgb, var(--nav-fg) 45%, transparent);
}
.btn--nav-ghost:hover {
  border-color: var(--nav-fg);
  background: color-mix(in srgb, var(--nav-fg) 10%, transparent);
  color: var(--nav-fg);
}

@media (max-width: 860px) {
  .nav__links { display: none; }
  .nav__cta .btn--nav-ghost { display: none; }
}

/* ---------- Hero ---------- */

.hero {
  position: relative;
  isolation: isolate;
  color: #fff;
  overflow: hidden;
}
.hero__bg {
  /* Foto del hero. Para quitarla: --hero-photo: none; */
  --hero-photo: url("hero.jpg");
  position: absolute;
  inset: 0;
  z-index: -1;
  background-color: #0a1420;
  background-image:
    linear-gradient(100deg, rgba(6, 12, 20, 0.97) 0%, rgba(6, 12, 20, 0.93) 36%, rgba(6, 12, 20, 0.72) 66%, rgba(6, 12, 20, 0.46) 100%),
    var(--hero-photo),
    radial-gradient(135% 115% at 80% 6%, #163a52 0%, #0a1826 62%);
  background-size: cover, cover, cover;
  background-position: center, center right, center;
  background-repeat: no-repeat;
}
@media (max-width: 700px) {
  .hero__bg {
    background-image:
      linear-gradient(180deg, rgba(6, 12, 20, 0.82) 0%, rgba(6, 12, 20, 0.92) 100%),
      var(--hero-photo),
      radial-gradient(135% 115% at 80% 6%, #163a52 0%, #0a1826 62%);
    background-position: center, center, center;
  }
}
.hero__inner {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: var(--space-md);
  max-width: 40rem;
  padding-block: clamp(7.5rem, 15vw, 11rem) clamp(4rem, 9vw, 7rem);
}
.hero__badge {
  display: inline-flex;
  align-items: center;
  gap: 0.55rem;
  font-size: var(--step--1);
  font-weight: 500;
  color: rgba(255, 255, 255, 0.86);
  background: rgba(255, 255, 255, 0.09);
  border: 1px solid rgba(255, 255, 255, 0.18);
  border-radius: var(--radius-pill);
  padding: 0.5rem 1rem;
}
.hero__badge::before {
  content: "";
  width: 7px; height: 7px;
  border-radius: 50%;
  background: var(--accent);
}
.hero__inner h1 {
  font-size: clamp(2.9rem, 2rem + 4.4vw, 5.1rem);
  font-weight: 700;
  line-height: 1.02;
  letter-spacing: -0.025em;
  color: #fff;
}
.hero__inner h1 em {
  font-style: italic;
  font-weight: 600;
  color: var(--accent);
}
.hero__lede {
  font-size: var(--step-1);
  line-height: 1.55;
  color: rgba(255, 255, 255, 0.8);
  max-width: 42ch;
}
.hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.9rem;
  margin-top: var(--space-sm);
}

/* ---------- Franja de confianza ---------- */

.trust {
  background: var(--paper-deep);
  padding-block: var(--space-lg);
}
.trust__inner {
  display: flex; flex-wrap: wrap; align-items: center;
  gap: 0.9rem 2.5rem;
}
.trust__label {
  font-family: var(--font-mono);
  font-size: var(--step--1);
  letter-spacing: 0.1em; text-transform: uppercase;
  color: var(--ink-faint);
}
.trust__items { display: flex; flex-wrap: wrap; gap: 1.25rem 2.25rem; }
.trust__item {
  display: inline-flex; align-items: center; gap: 0.5rem;
  font-weight: 600; font-size: var(--step--1); color: var(--ink-soft);
}
.trust__item svg { width: 1.1em; height: 1.1em; color: var(--brand); }

/* ---------- Pilares ---------- */

.pillars {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-md);
}
.pillar {
  padding: var(--space-md);
  display: flex; flex-direction: column; gap: 0.7rem;
}
.pillar__num {
  font-family: var(--font-mono);
  font-size: var(--step--1);
  color: var(--accent);
  letter-spacing: 0.1em;
}
.pillar h3 { font-size: var(--step-1); }
.pillar p { font-size: var(--step--1); color: var(--ink-soft); }

@media (max-width: 820px) { .pillars { grid-template-columns: 1fr; } }

/* ---------- Servicios ---------- */

.services {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1px;
  background: var(--line);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  overflow: hidden;
}
.service {
  background: var(--surface);
  padding: var(--space-md);
  display: flex; flex-direction: column; gap: 0.65rem;
  transition: background-color .16s ease;
}
.service:hover { background: var(--brand-tint); }
.service__icon {
  width: 40px; height: 40px; border-radius: 10px;
  background: var(--brand-tint); color: var(--brand);
  display: grid; place-items: center;
  margin-bottom: 0.35rem;
}
.service:hover .service__icon { background: var(--surface); }
.service__icon svg { width: 22px; height: 22px; }
.service h3 { font-size: var(--step-1); }
.service p { font-size: var(--step--1); color: var(--ink-soft); }

@media (max-width: 820px) { .services { grid-template-columns: 1fr; } }

/* ---------- Precio ---------- */

.price { display: flex; flex-direction: column; gap: var(--space-lg); }
.price__panel {
  display: grid;
  grid-template-columns: 1.2fr 0.8fr;
  gap: clamp(1.5rem, 4vw, 3rem);
  padding: clamp(1.5rem, 4vw, 2.6rem);
  align-items: center;
}
.price__what h3 { font-size: var(--step-1); margin-bottom: var(--space-sm); }
.price__list { list-style: none; margin: 0; padding: 0; display: flex; flex-direction: column; gap: 0.7rem; }
.price__list li {
  display: flex; align-items: flex-start; gap: 0.6rem;
  font-size: var(--step-0); color: var(--ink-soft);
}
.price__list svg { width: 1.1em; height: 1.1em; color: var(--brand); flex-shrink: 0; margin-top: 0.22em; }
.price__cta {
  display: flex; flex-direction: column; align-items: flex-start; gap: var(--space-sm);
  padding-left: clamp(0rem, 3vw, 2rem);
  border-left: 1px solid var(--line);
}
.price__note { font-size: var(--step--1); color: var(--ink-soft); }
.price__cta .btn { width: 100%; }
.price__free { font-family: var(--font-mono); font-size: 0.78rem; color: var(--ink-faint); }

@media (max-width: 820px) {
  .price__panel { grid-template-columns: 1fr; align-items: stretch; }
  .price__cta { padding-left: 0; border-left: 0; border-top: 1px solid var(--line); padding-top: var(--space-md); }
}

/* ---------- Diagnóstico (CTA) ---------- */

.diagnostic {
  background: var(--brand-tint);
  color: var(--ink);
  border-block: 1px solid var(--line);
}
.diagnostic__grid {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: clamp(2rem, 6vw, 4.5rem);
  align-items: center;
}
.diagnostic .eyebrow { color: var(--brand); }
.diagnostic h2 { color: var(--ink); font-size: var(--step-3); }
.diagnostic p { color: var(--ink-soft); font-size: var(--step-1); margin-top: var(--space-sm); }
.diagnostic__list { list-style: none; margin: var(--space-md) 0 var(--space-md); padding: 0; display: flex; flex-direction: column; gap: 0.7rem; }
.diagnostic__list li { display: flex; align-items: center; gap: 0.6rem; font-size: var(--step-0); color: var(--ink-soft); }
.diagnostic__list svg { width: 1.15em; height: 1.15em; color: var(--brand); flex-shrink: 0; }
.diagnostic__card {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: var(--space-md);
  display: flex; flex-direction: column; gap: 0.5rem;
}
.diagnostic__card .big {
  font-family: var(--font-display);
  font-size: var(--step-3);
  line-height: 1;
  color: var(--ink);
}
.diagnostic__card .small { font-size: var(--step--1); color: var(--ink-faint); }

@media (max-width: 820px) { .diagnostic__grid { grid-template-columns: 1fr; } }

/* ---------- FAQ ---------- */

.faq { display: flex; flex-direction: column; gap: 0; border-top: 1px solid var(--line); }
.faq__item { border-bottom: 1px solid var(--line); }
.faq__q {
  width: 100%;
  background: none; border: 0; cursor: pointer;
  display: flex; align-items: center; justify-content: space-between; gap: 1rem;
  padding: var(--space-sm) 0;
  font-family: var(--font-display);
  font-size: var(--step-1);
  font-weight: 600;
  color: var(--ink);
  text-align: left;
}
.faq__q::after {
  content: "+";
  font-family: var(--font-mono);
  font-size: 1.4rem;
  color: var(--brand);
  transition: transform .2s ease;
  flex-shrink: 0;
}
.faq__item[open] .faq__q::after { transform: rotate(45deg); }
.faq__a {
  padding-bottom: var(--space-sm);
  font-size: var(--step-0);
  color: var(--ink-soft);
  max-width: 68ch;
}

/* ---------- Contacto ---------- */

.contact-grid {
  display: grid;
  grid-template-columns: 1.15fr 0.85fr;
  gap: var(--space-md);
  align-items: stretch;
}
.contact-form { padding: clamp(1.5rem, 4vw, 2.4rem); display: flex; flex-direction: column; }
.contact-form form { display: flex; flex-direction: column; gap: var(--space-sm); }
.field { display: flex; flex-direction: column; gap: 0.4rem; }
.field label {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--ink-soft);
}
.field input, .field textarea {
  font-family: var(--font-body);
  font-size: var(--step-0);
  color: var(--ink);
  background: var(--paper);
  border: 1px solid var(--line-strong);
  border-radius: var(--radius-sm);
  padding: 0.8rem 0.9rem;
  width: 100%;
  transition: border-color .15s ease, box-shadow .15s ease;
}
.field input::placeholder, .field textarea::placeholder { color: var(--ink-faint); }
.field input:focus, .field textarea:focus {
  outline: none;
  border-color: var(--brand);
  box-shadow: 0 0 0 3px var(--brand-tint);
}
.field textarea { resize: vertical; min-height: 120px; }
.contact-form button { justify-content: center; margin-top: 0.3rem; }

.form-error {
  display: none;
  font-size: var(--step--1);
  line-height: 1.5;
  color: var(--danger);
  background: var(--danger-tint);
  border: 1px solid color-mix(in srgb, var(--danger) 35%, transparent);
  border-radius: var(--radius-sm);
  padding: 0.7rem 0.85rem;
}
.form-error.is-visible { display: block; }
.form-error a { color: var(--danger); text-decoration: underline; }

.form-success {
  display: none;
  flex-direction: column;
  align-items: flex-start;
  gap: 0.75rem;
  margin: auto 0;
  padding: var(--space-sm) 0;
}
.form-success.is-visible { display: flex; }
.form-success__icon {
  width: 48px; height: 48px; border-radius: 50%;
  background: var(--brand-tint); color: var(--brand);
  display: grid; place-items: center;
}
.form-success h3 { font-size: var(--step-1); }
.form-success p { font-size: var(--step--1); color: var(--ink-soft); max-width: 40ch; }
.contact-form form.is-hidden { display: none; }

.contact-info {
  background: var(--brand-tint);
  color: var(--ink);
  border: 1px solid var(--line);
  padding: clamp(1.5rem, 4vw, 2.4rem);
  display: flex; flex-direction: column; gap: var(--space-md);
}
.contact-info h3 { color: var(--ink); font-size: var(--step-1); }
.contact-info__row { display: flex; align-items: flex-start; gap: 0.8rem; }
.contact-info__row svg { width: 1.15rem; height: 1.15rem; color: var(--brand); flex-shrink: 0; margin-top: 0.15rem; }
.contact-info__row dt {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--ink-faint);
}
.contact-info__row dd { margin: 0; font-size: var(--step-0); font-weight: 500; color: var(--ink); }
.contact-info dl { margin: 0; display: flex; flex-direction: column; gap: var(--space-md); }

@media (max-width: 860px) { .contact-grid { grid-template-columns: 1fr; } }

/* ---------- Footer ---------- */

.footer { background: var(--surface); color: var(--ink); border-top: 1px solid var(--line-strong); padding-block: var(--space-xl) var(--space-lg); }
.footer__top {
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr;
  gap: var(--space-lg);
  padding-bottom: var(--space-lg);
  border-bottom: 1px solid var(--line);
}
.footer .brand__name { color: var(--ink); }
.footer__blurb {
  margin-top: var(--space-sm);
  font-size: var(--step--1);
  color: var(--ink-soft);
  max-width: 34ch;
}
.footer__col { display: flex; flex-direction: column; gap: 0.6rem; }
.footer__col h4 {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  font-weight: 500;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--ink-faint);
  margin-bottom: 0.2rem;
}
.footer__col a, .footer__col span {
  font-size: var(--step--1);
  color: var(--ink-soft);
}
.footer__col a:hover { color: var(--brand); }
.footer__bottom {
  padding-top: var(--space-md);
  font-family: var(--font-mono);
  font-size: 0.78rem;
  color: var(--ink-faint);
}

@media (max-width: 820px) {
  .footer__top { grid-template-columns: 1fr 1fr; }
  .footer__brand { grid-column: 1 / -1; }
}

/* ---------- Botón flotante de WhatsApp ---------- */

.wa-fab {
  position: fixed;
  right: clamp(1rem, 3vw, 1.75rem);
  bottom: clamp(1rem, 3vw, 1.75rem);
  z-index: 45;
  width: 3.5rem;
  height: 3.5rem;
  border-radius: 50%;
  background: #25D366;
  color: #fff;
  display: grid;
  place-items: center;
  box-shadow: 0 10px 28px -8px rgba(0, 0, 0, 0.4);
  transition: transform .15s ease, box-shadow .15s ease;
}
.wa-fab:hover {
  transform: translateY(-2px) scale(1.04);
  color: #fff;
  box-shadow: 0 16px 34px -8px rgba(0, 0, 0, 0.45);
}
.wa-fab svg { width: 1.9rem; height: 1.9rem; }

@media (prefers-reduced-motion: reduce) {
  .wa-fab:hover { transform: none; }
}

/* ---------- Revelado al hacer scroll ----------
   Solo se ocultan los elementos que JS marca como "pendientes" (los que
   están bajo el pliegue al cargar). Si JS falla, todo queda visible. */

.reveal-pending {
  opacity: 0;
  transform: translateY(18px);
}
.reveal-pending.is-in {
  opacity: 1;
  transform: none;
  transition: opacity .6s ease, transform .6s ease;
}

@media (prefers-reduced-motion: reduce) {
  .reveal-pending, .reveal-pending.is-in { opacity: 1; transform: none; transition: none; }
  .btn:active { transform: none; }
}