:root {
  --color-primary: #25D366;
  --color-primary-dark: #1DA851;
  --color-hero-bg: #0F172A;
  --color-text: #1E293B;
  --color-text-muted: #64748B;
  --color-surface: #F8FAFC;
  --color-border: #E2E8F0;
  --shadow-card: 0 4px 24px rgba(15, 23, 42, .08);
  --shadow-card-hover: 0 8px 32px rgba(15, 23, 42, .12);
  --radius-lg: 1rem;
  --font-heading: 'Plus Jakarta Sans', system-ui, sans-serif;
  --font-body: 'Inter', system-ui, sans-serif;
}

html, body {
  overflow-x: hidden;
}

body {
  font-family: var(--font-body);
  color: var(--color-text);
}

img, video {
  max-width: 100%;
  height: auto;
}

h1, h2, h3, h4, h5, h6,
.display-4, .display-6 {
  font-family: var(--font-heading);
}

/* Skip link */
.skip-link {
  position: absolute;
  top: -100%;
  left: 1rem;
  z-index: 1100;
  padding: .75rem 1.25rem;
  background: var(--color-primary);
  color: #fff;
  text-decoration: none;
  border-radius: .5rem;
  font-weight: 600;
}
.skip-link:focus {
  top: 1rem;
}

/* Focus states */
:focus-visible {
  outline: 2px solid var(--color-primary);
  outline-offset: 2px;
}

/* Navbar */
.site-nav {
  background: rgba(255, 255, 255, .92);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--color-border);
}
.site-nav .navbar-brand {
  font-family: var(--font-heading);
  font-weight: 700;
  color: var(--color-text);
}
.site-nav .navbar-brand i {
  color: var(--color-primary);
}
.navbar-logo {
  object-fit: contain;
}
.site-nav .nav-link {
  color: var(--color-text-muted);
  font-weight: 500;
  padding: .5rem 1rem !important;
}
.site-nav .nav-link:hover,
.site-nav .nav-link:focus {
  color: var(--color-text);
}
@media (max-width: 991.98px) {
  .site-nav .navbar-collapse {
    padding-bottom: 1rem;
  }
  .site-nav .btn-primary-custom {
    width: 100%;
    margin-top: .5rem;
  }
}
.btn-primary-custom {
  background: var(--color-primary);
  border-color: var(--color-primary);
  color: #fff;
  font-weight: 600;
}
.btn-primary-custom:hover,
.btn-primary-custom:focus {
  background: var(--color-primary-dark);
  border-color: var(--color-primary-dark);
  color: #fff;
}
.btn-outline-custom {
  border-color: var(--color-primary);
  color: var(--color-primary);
  font-weight: 600;
}
.btn-outline-custom:hover,
.btn-outline-custom:focus {
  background: var(--color-primary);
  border-color: var(--color-primary);
  color: #fff;
}

/* Hero */
.min-vh-hero {
  min-height: calc(100dvh - 4rem);
}
@media (min-width: 992px) {
  .min-vh-hero {
    min-height: calc(100dvh - 5rem);
  }
}

.hero {
  position: relative;
  overflow: hidden;
  isolation: isolate;
  background: linear-gradient(135deg, var(--color-hero-bg) 0%, #1e293b 50%, #0f172a 100%);
}
.hero__bg { position: absolute; inset: 0; z-index: 0; }
.hero__glow {
  position: absolute;
  width: 60vw; height: 60vw;
  top: -20%; right: -10%;
  background: radial-gradient(circle, rgba(37, 211, 102, .28), transparent 60%);
  filter: blur(40px);
  animation: heroGlow 14s ease-in-out infinite alternate;
}
@keyframes heroGlow {
  from { transform: translate(0, 0) scale(1); opacity: .8; }
  to   { transform: translate(-6%, 8%) scale(1.15); opacity: 1; }
}
.hero__content { position: relative; z-index: 1; color: #fff; padding: 3.5rem 0; }
.hero-title { font-size: clamp(2rem, 4vw, 3rem); }
.hero-subtitle {
  max-width: 36rem; margin-left: auto; margin-right: auto;
  color: rgba(255, 255, 255, .85); font-size: 1.125rem; line-height: 1.7;
}
@media (min-width: 992px) { .hero-subtitle { margin-left: 0; margin-right: 0; } }
.hero-badge {
  display: inline-block; padding: .35rem 1rem;
  background: rgba(37, 211, 102, .15); border: 1px solid rgba(37, 211, 102, .3);
  border-radius: 2rem; color: var(--color-primary);
  font-size: .875rem; font-weight: 600; margin-bottom: 1.5rem;
}
@media (max-width: 767.98px) {
  .hero__content { padding: 2.25rem 0; }
  .hero-title { font-size: clamp(1.75rem, 7vw, 2.5rem); }
  .hero-subtitle { font-size: 1rem; }
  .hero__glow { width: 90vw; height: 90vw; }
}

/* Escenario animado */
.hero-stage { position: relative; display: flex; flex-direction: column; gap: 1.25rem; }
.hero-phone {
  background: #0b141a; border-radius: 1.25rem; padding: .85rem;
  border: 1px solid rgba(255,255,255,.08);
  box-shadow: 0 24px 60px rgba(0,0,0,.45);
  max-width: 320px; margin: 0 auto;
}
.hero-phone__bar {
  display: flex; align-items: center; gap: .5rem;
  color: rgba(255,255,255,.7); font-size: .8125rem; padding: .25rem .5rem .75rem;
}
.hero-phone__dot { width: .5rem; height: .5rem; border-radius: 50%; background: var(--color-primary); }
.hero-chat {
  background: #0b141a; border-radius: .75rem;
  padding: 1rem; display: flex; flex-direction: column; gap: .6rem;
  min-height: 180px;
}
.hero-bubble {
  max-width: 80%; padding: .5rem .75rem; border-radius: .85rem;
  font-size: .875rem; line-height: 1.4;
}
.hero-bubble--in { align-self: flex-start; background: #202c33; color: #e9edef; border-bottom-left-radius: .2rem; }
.hero-bubble--reply {
  align-self: flex-end; background: #005c4b; color: #e9edef;
  border-bottom-right-radius: .2rem;
}
.hero-bubble__check { font-size: .85rem; color: #53bdeb; margin-left: .25rem; }
.hero-typing {
  align-self: flex-start; background: #202c33; border-radius: .85rem;
  padding: .55rem .7rem; display: inline-flex; gap: .25rem;
}
.hero-typing span {
  width: .4rem; height: .4rem; border-radius: 50%; background: rgba(255,255,255,.6);
}
.hero-code {
  background: #0d1117; border: 1px solid rgba(255,255,255,.1);
  border-radius: var(--radius-lg); overflow: hidden; max-width: 380px; margin: 0 auto;
}
.hero-code__head {
  display: flex; align-items: center; gap: .65rem;
  padding: .5rem .85rem; background: #161b22; color: rgba(255,255,255,.75);
  font-family: ui-monospace, monospace; font-size: .8125rem;
}
.hero-code__dots {
  display: inline-flex;
  align-items: center;
  gap: .35rem;
  flex-shrink: 0;
}
.hero-code__dot {
  width: .55rem;
  height: .55rem;
  border-radius: 50%;
}
.hero-code__dot--red { background: #f87171; }
.hero-code__dot--yellow { background: #fbbf24; }
.hero-code__dot--green { background: #34d399; }
.hero-code__title { min-width: 0; }
.hero-code__body {
  margin: 0; padding: .85rem 1rem; color: #c9d1d9;
  font-family: ui-monospace, monospace; font-size: .75rem; line-height: 1.6;
  white-space: pre-wrap; word-break: break-word;
}
.hero-code__send { margin: 0 1rem 1rem; }
.hero-code--sending .hero-code__send { opacity: .7; pointer-events: none; }

.hero-stage:not(.is-playing) .hero-typing { display: none; }

.hero-stage.is-playing .hero-typing { display: inline-flex; }
.hero-stage.is-playing .hero-typing span { animation: heroDot 1.8s infinite; }
.hero-stage.is-playing .hero-typing span:nth-child(2) { animation-delay: .25s; }
.hero-stage.is-playing .hero-typing span:nth-child(3) { animation-delay: .5s; }
.hero-stage.is-playing .hero-bubble--reply {
  opacity: 0;
  animation: heroBubbleIn .75s ease-out var(--hero-typing-ms, 2.4s) forwards;
}
.hero-stage:not(.is-playing) .hero-bubble--reply {
  opacity: 1;
  transform: none;
}
.hero-stage.is-playing .hero-code__body { animation: heroCodeFlash 1.4s ease-out .2s; }

@keyframes heroDot { 0%,60%,100% { opacity: .3; transform: translateY(0); } 30% { opacity: 1; transform: translateY(-2px); } }
@keyframes heroBubbleIn { from { opacity: 0; transform: translateY(10px) scale(.96); } to { opacity: 1; transform: none; } }
@keyframes heroCodeFlash { from { background: rgba(37,211,102,.18); } to { background: transparent; } }

.hero-animate { animation: heroFadeIn .6s ease-out; }
@keyframes heroFadeIn { from { opacity: 0; transform: translateY(16px); } to { opacity: 1; transform: translateY(0); } }

@media (prefers-reduced-motion: reduce) {
  .hero-animate, .hero__glow,
  .hero-stage.is-playing .hero-typing,
  .hero-stage.is-playing .hero-typing span,
  .hero-stage.is-playing .hero-bubble--reply,
  .hero-stage.is-playing .hero-code__body { animation: none; }
  .hero-stage .hero-typing { display: none; }
}

/* Trust bar */
.trust-bar {
  background: #fff;
  border-bottom: 1px solid var(--color-border);
  padding: 2rem 0;
}
.trust-item {
  text-align: center;
  padding: .5rem 1rem;
}
.trust-item__valor {
  font-family: var(--font-heading);
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--color-text);
  display: block;
}
.trust-item__etiqueta {
  font-size: .875rem;
  color: var(--color-text-muted);
}

/* Section headers */
.section-header {
  max-width: 36rem;
  margin-left: auto;
  margin-right: auto;
  text-align: center;
  margin-bottom: 3rem;
}
.section-header p {
  color: var(--color-text-muted);
  margin-bottom: 0;
}

/* Sections */
.section-pricing,
.section-testimonials,
.section-demo {
  padding: 3rem 0;
}
@media (min-width: 768px) {
  .section-pricing,
  .section-testimonials,
  .section-demo {
    padding: 5rem 0;
  }
}

/* Pricing */
.section-pricing {
  background: var(--color-surface);
}
.pricing-card {
  background: #fff;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-card);
  height: 100%;
  transition: box-shadow .2s ease, transform .2s ease;
}
.pricing-card:hover {
  box-shadow: var(--shadow-card-hover);
}
.pricing-card__body {
  padding: 2rem;
  display: flex;
  flex-direction: column;
  height: 100%;
}
.pricing-card--featured {
  border-color: var(--color-primary);
  box-shadow: var(--shadow-card-hover);
  position: relative;
}
@media (min-width: 768px) {
  .pricing-card--featured {
    transform: scale(1.02);
  }
}
@media (max-width: 767.98px) {
  .pricing-card--featured {
    transform: none;
  }
  .pricing-card__body {
    padding: 1.5rem;
  }
  .pricing-card__price {
    font-size: 2rem;
  }
  .row.g-4 > [class*="col-"]:has(.pricing-card--featured) {
    margin-top: .5rem;
  }
}
.pricing-card__badge {
  position: absolute;
  top: -12px;
  left: 50%;
  transform: translateX(-50%);
  background: var(--color-primary);
  color: #fff;
  font-size: .75rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: .05em;
  padding: .35rem 1rem;
  border-radius: 2rem;
  white-space: nowrap;
}
.pricing-card__price {
  font-family: var(--font-heading);
  font-size: 2.5rem;
  font-weight: 700;
  color: var(--color-text);
  margin: .5rem 0 1.5rem;
}
.pricing-card__features {
  list-style: none;
  padding: 0;
  margin: 0 0 1.5rem;
  flex-grow: 1;
}
.pricing-card__features li {
  display: flex;
  align-items: flex-start;
  gap: .5rem;
  padding: .4rem 0;
  color: var(--color-text-muted);
}
.pricing-card__features li i {
  color: var(--color-primary);
  flex-shrink: 0;
  margin-top: .15rem;
}

/* Testimonials */
.section-testimonials {
  background: #fff;
}
.testimonial-card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-left: 4px solid var(--color-primary);
  border-radius: var(--radius-lg);
  padding: 1.75rem;
  height: 100%;
  box-shadow: var(--shadow-card);
}
.testimonial-card__avatar {
  width: 48px;
  height: 48px;
  object-fit: cover;
  flex-shrink: 0;
  border: 2px solid var(--color-border);
}
.testimonial-card__avatar--placeholder {
  background: var(--color-border);
  color: var(--color-text-muted);
  font-size: 1.25rem;
}
.testimonial-card__stars {
  color: #F59E0B;
  font-size: .875rem;
}
.testimonial-card__text {
  font-size: 1rem;
  line-height: 1.6;
  color: var(--color-text);
  margin-bottom: 1rem;
}
.testimonial-card__author {
  font-size: .875rem;
  font-weight: 600;
  color: var(--color-text-muted);
}

/* Demo section */
.section-demo {
  background: var(--color-surface);
}
.demo-card {
  background: #fff;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-card);
  padding: 2.5rem;
  max-width: 640px;
  margin: 0 auto;
}
.demo-card .form-control,
.demo-card .form-select {
  min-height: 44px;
}
.demo-card textarea.form-control {
  min-height: auto;
}
@media (max-width: 575.98px) {
  .demo-card {
    padding: 1.25rem;
  }
  .container {
    padding-left: 1rem;
    padding-right: 1rem;
  }
}

/* Footer */
.site-footer {
  background: var(--color-hero-bg);
  color: rgba(255, 255, 255, .7);
  padding: 2.5rem 0;
  font-size: .875rem;
}
.site-footer a {
  color: rgba(255, 255, 255, .85);
  text-decoration: none;
}
.site-footer a:hover {
  color: var(--color-primary);
}

/* Scroll reveal */
[data-reveal] { opacity: 0; transform: translateY(20px); transition: opacity .5s ease, transform .5s ease; }
[data-reveal].is-visible { opacity: 1; transform: none; }
@media (prefers-reduced-motion: reduce) {
  [data-reveal] { opacity: 1; transform: none; transition: none; }
}

/* Micro-interacciones */
.pricing-card, .testimonial-card { transition: transform .2s ease, box-shadow .2s ease; }
.pricing-card:hover, .testimonial-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-card-hover); }
.pricing-card--featured { box-shadow: 0 0 0 2px var(--color-primary), var(--shadow-card-hover); }
.btn-primary-custom { transition: transform .15s ease, box-shadow .15s ease, background-color .2s ease; }
.btn-primary-custom:hover { transform: translateY(-1px); box-shadow: 0 8px 20px rgba(37, 211, 102, .35); }
.btn-primary-custom:focus-visible { outline: 3px solid rgba(37, 211, 102, .5); outline-offset: 2px; }
@media (prefers-reduced-motion: reduce) {
  .pricing-card, .testimonial-card, .btn-primary-custom { transition: none; }
  .pricing-card:hover, .testimonial-card:hover, .btn-primary-custom:hover { transform: none; }
}

/* Billing toggle */
.pricing-billing-wrap {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: .65rem;
  margin-bottom: 2.5rem;
}
.pricing-currency-note {
  font-size: .6875rem;
  font-weight: 600;
  letter-spacing: .04em;
  text-transform: uppercase;
  color: var(--color-text-muted);
  background: #fff;
  border: 1px solid var(--color-border);
  border-radius: 1rem;
  padding: .2rem .6rem;
}
.billing-switch {
  display: inline-flex; gap: .25rem; margin: 0;
  background: var(--color-surface); border: 1px solid var(--color-border);
  border-radius: 2rem; padding: .25rem;
}
.section-pricing .billing-switch { display: flex; width: max-content; }
.billing-switch__btn {
  border: 0; background: transparent; cursor: pointer;
  font-family: var(--font-heading); font-weight: 600; font-size: .9375rem;
  color: var(--color-text-muted); padding: .5rem 1.1rem; border-radius: 2rem;
  display: inline-flex; align-items: center; gap: .5rem;
  transition: background-color .2s ease, color .2s ease;
}
.billing-switch__btn.is-active { background: var(--color-primary); color: #fff; }
.billing-switch__btn:focus-visible { outline: 3px solid rgba(37, 211, 102, .5); outline-offset: 2px; }
.billing-switch__save {
  font-size: .6875rem; font-weight: 700; text-transform: uppercase; letter-spacing: .03em;
  background: rgba(37, 211, 102, .15); color: var(--color-primary-dark);
  border-radius: 1rem; padding: .1rem .45rem;
}
.billing-switch__btn.is-active .billing-switch__save { background: rgba(255,255,255,.25); color: #fff; }
#billing-toggle { justify-content: center; margin-left: auto; margin-right: auto; }
.pricing-card__price { transition: opacity .25s ease, transform .25s ease; min-height: 2.4rem; }
.pricing-card__price.is-swapping { opacity: 0; transform: translateY(6px); }
@media (prefers-reduced-motion: reduce) {
  .billing-switch__btn, .pricing-card__price { transition: none; }
}