/* ============================================================
   PRODUCTO.CSS — Bridge page / Sales page IA Rentable
   Objetivo: máxima conversión, diseño premium, confianza
   ============================================================ */

/* === RESET === */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

body {
  font-family: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  background: #FFFFFF;
  color: #111111;
  -webkit-font-smoothing: antialiased;
  line-height: 1.6;
}

a { text-decoration: none; color: inherit; }
ul { list-style: none; }

/* === CONTAINER === */
.container {
  width: 100%;
  max-width: 960px;
  margin: 0 auto;
  padding: 0 24px;
}

/* === TOP BAR === */
.top-bar {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(255,255,255,0.95);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid #E5E5E5;
  padding: 12px 0;
}

.top-bar-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
}

.top-bar-logo {
  font-size: 0.875rem;
  font-weight: 700;
  color: #111111;
  letter-spacing: -0.02em;
}

.btn-top-cta {
  background: #111111;
  color: #FFFFFF;
  font-size: 0.8125rem;
  font-weight: 600;
  padding: 8px 16px;
  border-radius: 6px;
  white-space: nowrap;
  transition: background 150ms ease, transform 150ms ease;
}

.btn-top-cta:hover {
  background: #000000;
  transform: translateY(-1px);
}

/* === HERO === */
.hero {
  padding: 80px 0 72px;
  background: #FFFFFF;
  background-image: radial-gradient(ellipse 70% 50% at 50% 0%, rgba(17,17,17,0.04) 0%, transparent 60%);
  text-align: center;
  border-bottom: 1px solid #F0F0F0;
}

.hero-inner {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 24px;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 0.75rem;
  font-weight: 600;
  color: #525252;
  background: #F5F5F5;
  border: 1px solid #E5E5E5;
  padding: 6px 14px;
  border-radius: 999px;
  letter-spacing: 0.02em;
}

/* BLUR-IN */
@keyframes hero-arrive {
  from { opacity: 0; transform: translateY(20px); filter: blur(10px); }
  to   { opacity: 1; transform: translateY(0);    filter: blur(0); }
}

@keyframes fade-up {
  from { opacity: 0; transform: translateY(12px); }
  to   { opacity: 1; transform: translateY(0); }
}

.hero-title {
  font-size: clamp(2rem, 5vw, 3.5rem);
  font-weight: 800;
  letter-spacing: -0.04em;
  line-height: 1.05;
  color: #111111;
  max-width: 720px;
  animation: hero-arrive 950ms cubic-bezier(0.22, 1, 0.36, 1) 80ms both;
}

.hero-subtitle {
  font-size: 1.125rem;
  line-height: 1.7;
  color: #525252;
  max-width: 600px;
  animation: fade-up 700ms cubic-bezier(0.22, 1, 0.36, 1) 300ms both;
}

.hero-cta-group {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 12px;
  animation: fade-up 700ms cubic-bezier(0.22, 1, 0.36, 1) 450ms both;
}

.btn-hero {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  background: #111111;
  color: #FFFFFF;
  font-size: 1.0625rem;
  font-weight: 700;
  padding: 16px 36px;
  border-radius: 10px;
  transition: transform 150ms ease, box-shadow 150ms ease, background 150ms ease;
  letter-spacing: -0.01em;
}

.btn-hero:hover {
  background: #000000;
  transform: translateY(-2px);
  box-shadow: 0 12px 32px rgba(0,0,0,0.2);
}

.btn-hero:focus-visible {
  outline: 2px solid #111111;
  outline-offset: 3px;
}

.hero-guarantee {
  font-size: 0.8125rem;
  color: #737373;
  font-weight: 500;
}

.hero-proof {
  display: flex;
  align-items: center;
  gap: 32px;
  padding: 24px 40px;
  background: #FAFAFA;
  border: 1px solid #E5E5E5;
  border-radius: 12px;
  margin-top: 8px;
  animation: fade-up 700ms cubic-bezier(0.22, 1, 0.36, 1) 550ms both;
}

.proof-item {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 4px;
}

.proof-number {
  font-size: 2rem;
  font-weight: 800;
  color: #111111;
  letter-spacing: -0.04em;
  line-height: 1;
}

.proof-label {
  font-size: 0.8125rem;
  color: #737373;
  text-align: center;
  line-height: 1.3;
}

.proof-divider {
  width: 1px;
  height: 40px;
  background: #E5E5E5;
  flex-shrink: 0;
}

/* === SECTIONS COMMON === */
.section-label {
  font-size: 0.75rem;
  font-weight: 700;
  color: #737373;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  margin-bottom: 12px;
}

.section-heading {
  font-size: clamp(1.5rem, 3vw, 2.25rem);
  font-weight: 700;
  letter-spacing: -0.03em;
  line-height: 1.2;
  color: #111111;
  margin-bottom: 20px;
}

.section-text {
  font-size: 1rem;
  line-height: 1.75;
  color: #525252;
  max-width: 680px;
  margin-bottom: 40px;
}

/* === PROBLEMA === */
.section-problema {
  padding: 80px 0;
  background: #FAFAFA;
  border-bottom: 1px solid #F0F0F0;
}

.problema-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
  margin-bottom: 40px;
}

.problema-item {
  display: flex;
  gap: 14px;
  align-items: flex-start;
  background: #FFFFFF;
  border: 1px solid #E5E5E5;
  border-radius: 10px;
  padding: 20px;
}

.problema-icon {
  font-size: 1rem;
  color: #EF4444;
  font-weight: 700;
  flex-shrink: 0;
  margin-top: 2px;
}

.problema-item p {
  font-size: 0.9375rem;
  line-height: 1.6;
  color: #404040;
}

.problema-conclusion {
  background: #111111;
  color: #FFFFFF;
  border-radius: 10px;
  padding: 24px 28px;
}

.problema-conclusion p {
  font-size: 1rem;
  line-height: 1.7;
  color: rgba(255,255,255,0.85);
}

.problema-conclusion strong {
  color: #FFFFFF;
}

/* === SOLUCIÓN === */
.section-solucion {
  padding: 80px 0;
  border-bottom: 1px solid #F0F0F0;
}

.solucion-pillars {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 24px;
  margin-top: 40px;
}

.pillar {
  padding: 28px;
  border: 1px solid #E5E5E5;
  border-radius: 12px;
  transition: box-shadow 200ms ease, transform 200ms ease;
}

.pillar:hover {
  box-shadow: 0 8px 24px rgba(0,0,0,0.07);
  transform: translateY(-2px);
}

.pillar-number {
  font-size: 0.75rem;
  font-weight: 700;
  color: #A3A3A3;
  letter-spacing: 0.08em;
  margin-bottom: 12px;
}

.pillar-title {
  font-size: 1rem;
  font-weight: 700;
  color: #111111;
  letter-spacing: -0.01em;
  margin-bottom: 10px;
  line-height: 1.3;
}

.pillar-text {
  font-size: 0.9rem;
  line-height: 1.65;
  color: #525252;
}

/* === QUÉ INCLUYE === */
.section-incluye {
  padding: 80px 0;
  background: #FAFAFA;
  border-bottom: 1px solid #F0F0F0;
}

.incluye-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
  margin-top: 40px;
}

.incluye-item {
  display: flex;
  gap: 16px;
  align-items: flex-start;
  background: #FFFFFF;
  border: 1px solid #E5E5E5;
  border-radius: 10px;
  padding: 24px;
  transition: box-shadow 200ms ease;
}

.incluye-item:hover {
  box-shadow: 0 4px 16px rgba(0,0,0,0.06);
}

.incluye-item--featured {
  border-color: #111111;
  background: #FFFFFF;
}

.incluye-icon {
  font-size: 1.5rem;
  flex-shrink: 0;
  line-height: 1;
}

.incluye-title {
  font-size: 0.9375rem;
  font-weight: 700;
  color: #111111;
  margin-bottom: 6px;
  letter-spacing: -0.01em;
}

.incluye-text {
  font-size: 0.875rem;
  line-height: 1.6;
  color: #525252;
}

.incluye-cta {
  margin-top: 40px;
  text-align: center;
}

.btn-primary {
  display: inline-flex;
  align-items: center;
  background: #111111;
  color: #FFFFFF;
  font-size: 1rem;
  font-weight: 700;
  padding: 14px 32px;
  border-radius: 8px;
  transition: transform 150ms ease, box-shadow 150ms ease, background 150ms ease;
  letter-spacing: -0.01em;
}

.btn-primary:hover {
  background: #000000;
  transform: translateY(-2px);
  box-shadow: 0 8px 24px rgba(0,0,0,0.18);
}

.btn-primary:focus-visible {
  outline: 2px solid #111111;
  outline-offset: 3px;
}

/* === PARA QUIÉN === */
.section-paraquien {
  padding: 80px 0;
  border-bottom: 1px solid #F0F0F0;
}

.paraquien-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 32px;
}

.paraquien-col--si {
  background: #F0FDF4;
  border: 1px solid #BBF7D0;
  border-radius: 12px;
  padding: 32px;
}

.paraquien-col--no {
  background: #FFF7F7;
  border: 1px solid #FECACA;
  border-radius: 12px;
  padding: 32px;
}

.paraquien-list {
  display: flex;
  flex-direction: column;
  gap: 14px;
  margin-top: 20px;
}

.paraquien-list li {
  display: flex;
  gap: 12px;
  align-items: flex-start;
  font-size: 0.9375rem;
  line-height: 1.5;
  color: #1A1A1A;
}

.check-icon {
  color: #16A34A;
  font-weight: 700;
  flex-shrink: 0;
  margin-top: 1px;
}

.x-icon {
  color: #DC2626;
  font-weight: 700;
  flex-shrink: 0;
  margin-top: 1px;
}

/* === GARANTÍA === */
.section-garantia {
  padding: 72px 0;
  background: #111111;
  border-bottom: 1px solid #1A1A1A;
}

.garantia-inner {
  display: flex;
  gap: 40px;
  align-items: center;
}

.garantia-badge {
  width: 80px;
  height: 80px;
  border-radius: 50%;
  background: #FFFFFF;
  color: #111111;
  font-size: 2rem;
  font-weight: 800;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  letter-spacing: -0.04em;
}

.garantia-title {
  font-size: 1.375rem;
  font-weight: 700;
  color: #FFFFFF;
  letter-spacing: -0.02em;
  margin-bottom: 12px;
}

.garantia-text {
  font-size: 0.9375rem;
  line-height: 1.7;
  color: rgba(255,255,255,0.7);
  margin-bottom: 8px;
}

/* === FAQ === */
.section-faq {
  padding: 80px 0;
  border-bottom: 1px solid #F0F0F0;
}

.faq-list {
  display: flex;
  flex-direction: column;
  gap: 0;
  margin-top: 40px;
  border: 1px solid #E5E5E5;
  border-radius: 12px;
  overflow: hidden;
}

.faq-item {
  padding: 24px 28px;
  border-bottom: 1px solid #F0F0F0;
}

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

.faq-question {
  font-size: 1rem;
  font-weight: 600;
  color: #111111;
  letter-spacing: -0.01em;
  margin-bottom: 10px;
  line-height: 1.4;
}

.faq-answer {
  font-size: 0.9375rem;
  line-height: 1.7;
  color: #525252;
}

/* === CTA FINAL === */
.section-final-cta {
  padding: 96px 0;
  background: #FAFAFA;
  border-bottom: 1px solid #F0F0F0;
  text-align: center;
}

.final-cta-inner {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 32px;
}

.final-cta-title {
  font-size: clamp(1.75rem, 4vw, 2.75rem);
  font-weight: 800;
  letter-spacing: -0.04em;
  line-height: 1.1;
  color: #111111;
}

.final-cta-text {
  font-size: 1rem;
  line-height: 1.7;
  color: #525252;
  max-width: 560px;
}

.final-cta-box {
  background: #FFFFFF;
  border: 1px solid #E5E5E5;
  border-top: 3px solid #111111;
  border-radius: 16px;
  padding: 40px;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 16px;
  width: 100%;
  max-width: 480px;
  box-shadow: 0 8px 32px rgba(0,0,0,0.06);
}

.final-cta-product {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 6px;
}

.final-cta-name {
  font-size: 1.25rem;
  font-weight: 700;
  color: #111111;
  letter-spacing: -0.02em;
}

.final-cta-includes {
  font-size: 0.8125rem;
  color: #737373;
  text-align: center;
  line-height: 1.5;
}

.final-cta-price-group {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 4px;
}

.final-cta-price {
  font-size: 2.5rem;
  font-weight: 800;
  color: #111111;
  letter-spacing: -0.04em;
  line-height: 1;
}

.final-cta-once {
  font-size: 0.8125rem;
  color: #737373;
}

.btn-final-cta {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 100%;
  background: #111111;
  color: #FFFFFF;
  font-size: 1rem;
  font-weight: 700;
  padding: 16px 24px;
  border-radius: 10px;
  transition: transform 150ms ease, box-shadow 150ms ease, background 150ms ease;
  letter-spacing: -0.01em;
}

.btn-final-cta:hover {
  background: #000000;
  transform: translateY(-2px);
  box-shadow: 0 12px 32px rgba(0,0,0,0.2);
}

.btn-final-cta:focus-visible {
  outline: 2px solid #111111;
  outline-offset: 3px;
}

.final-cta-guarantee {
  font-size: 0.8125rem;
  color: #737373;
}

/* === FOOTER === */
.site-footer {
  padding: 40px 0;
  background: #FFFFFF;
  border-top: 1px solid #E5E5E5;
}

.footer-inner {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.footer-logo {
  font-size: 0.875rem;
  font-weight: 700;
  color: #111111;
}

.footer-disclaimer {
  font-size: 0.75rem;
  color: #A3A3A3;
  line-height: 1.6;
  max-width: 680px;
}

.footer-copy {
  font-size: 0.75rem;
  color: #C4C4C4;
}

/* === RESPONSIVE === */
@media (max-width: 768px) {
  /* TOP BAR */
  .top-bar-logo { display: none; }
  .btn-top-cta { font-size: 0.75rem; padding: 7px 12px; }

  /* HERO */
  .hero { padding: 40px 0 32px; }
  .hero-title { font-size: clamp(1.75rem, 8vw, 2.5rem); line-height: 1.1; }
  .hero-subtitle { font-size: 0.9375rem; }
  .hero-badge { font-size: 0.6875rem; }
  .btn-hero { width: 100%; font-size: 1rem; padding: 15px 24px; border-radius: 10px; }
  .hero-guarantee { font-size: 0.8125rem; }
  .hero-proof {
    flex-direction: row;
    overflow-x: auto;
    gap: 0;
    padding: 16px 20px;
    -webkit-overflow-scrolling: touch;
    scrollbar-width: none;
  }
  .hero-proof::-webkit-scrollbar { display: none; }
  .proof-item { min-width: 90px; flex-shrink: 0; }
  .proof-number { font-size: 1.5rem; }
  .proof-divider { width: 1px; height: 32px; margin: 0 12px; }

  /* SECTIONS */
  .section-problema { padding: 40px 0; }
  .problema-grid { grid-template-columns: 1fr; gap: 10px; }
  .problema-item { padding: 16px; border-radius: 8px; }
  .problema-conclusion { padding: 20px; border-radius: 8px; }

  .section-solucion { padding: 40px 0; }
  .solucion-pillars { grid-template-columns: 1fr; gap: 12px; }
  .pillar { padding: 20px; }
  /* Numeración con color para diferenciación visual */
  .pillar:nth-child(1) { border-left: 3px solid #2563EB; }
  .pillar:nth-child(2) { border-left: 3px solid #7C3AED; }
  .pillar:nth-child(3) { border-left: 3px solid #059669; }
  .pillar:nth-child(4) { border-left: 3px solid #D97706; }

  .section-incluye { padding: 40px 0; }
  .incluye-grid { grid-template-columns: 1fr; gap: 10px; }
  .incluye-item { padding: 16px; border-radius: 8px; }
  .incluye-icon { font-size: 1.25rem; }
  .btn-primary { width: 100%; justify-content: center; padding: 14px 20px; }

  .section-paraquien { padding: 40px 0; }
  .paraquien-grid { grid-template-columns: 1fr; gap: 12px; }
  .paraquien-col--si,
  .paraquien-col--no { padding: 20px; border-radius: 10px; }

  .section-garantia { padding: 40px 0; }
  .garantia-inner { flex-direction: column; text-align: center; gap: 20px; }
  .garantia-badge { width: 64px; height: 64px; font-size: 1.5rem; }
  .garantia-title { font-size: 1.125rem; }

  .section-faq { padding: 40px 0; }
  .faq-item { padding: 18px 16px; }
  .faq-question { font-size: 0.9375rem; }
  .faq-answer { font-size: 0.875rem; }

  .section-final-cta { padding: 48px 0 100px; } /* espacio para CTA flotante */
  .final-cta-title { font-size: 1.625rem; }
  .final-cta-box { padding: 24px 18px; max-width: 100%; }
  .final-cta-price { font-size: 2rem; }
  .btn-final-cta { font-size: 1rem; padding: 15px 20px; }

  /* CTA FLOTANTE */
  .mobile-cta-bar { display: flex !important; }
}

/* CTA flotante — solo visible en móvil */
.mobile-cta-bar {
  display: none;
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  z-index: 200;
  background: #111111;
  padding: 10px 16px 14px;
  box-shadow: 0 -4px 20px rgba(0,0,0,0.25);
  flex-direction: column;
  gap: 4px;
}

.mobile-cta-bar a {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 100%;
  background: #FFFFFF;
  color: #111111;
  font-family: "Inter", sans-serif;
  font-size: 1rem;
  font-weight: 700;
  padding: 13px 20px;
  border-radius: 8px;
  text-decoration: none;
}

.mobile-cta-bar .mobile-cta-sub {
  font-size: 0.6875rem;
  color: rgba(255,255,255,0.55);
  text-align: center;
}

@media (max-width: 480px) {
  .container { padding: 0 16px; }
  .hero-title { font-size: 1.625rem; }
  .section-heading { font-size: 1.25rem; }
}

/* === REDUCED MOTION === */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    transition-duration: 0.01ms !important;
  }
}