:root {
  --blue: #3B4FD8;
  --blue-hover: #2c3cb0;
  --gold: #F5C518;
  --ink: #111111;
  --ink-72: rgba(17,17,17,0.72);
  --ink-65: rgba(17,17,17,0.65);
  --ink-55: rgba(17,17,17,0.55);
  --ink-45: rgba(17,17,17,0.45);
  --ink-25: rgba(17,17,17,0.25);
  --ink-12: rgba(17,17,17,0.12);
  --ink-10: rgba(17,17,17,0.1);
  --ink-08: rgba(17,17,17,0.08);
  --gray-bg: #F2F3F5;
  --white-70: rgba(255,255,255,0.7);
  --white-65: rgba(255,255,255,0.65);
  --white-4: rgba(255,255,255,0.4);
  --white-18: rgba(255,255,255,0.18);
  --white-85: rgba(255,255,255,0.85);
  --blue-08: rgba(59,79,216,0.08);
  --blue-10: rgba(59,79,216,0.1);
  --blue-40: rgba(59,79,216,0.4);
}

* { box-sizing: border-box; }

html, body { margin: 0; padding: 0; }
html { scroll-behavior: smooth; }

body {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
  -webkit-font-smoothing: antialiased;
  background: #FFFFFF;
  color: var(--ink);
}

a { color: var(--blue); text-decoration: none; }
a:hover { color: var(--blue-hover); }

h1, h2, p { margin: 0; }

img { max-width: 100%; }

@keyframes tapticaDot {
  0%, 80%, 100% { opacity: 0.3; transform: translateY(0); }
  40% { opacity: 1; transform: translateY(-3px); }
}

/* Header */
.site-header {
  position: fixed;
  top: 0; left: 0; right: 0;
  height: 56px;
  background: #FFFFFF;
  box-shadow: 0 1px 8px var(--ink-08);
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 20px;
  z-index: 50;
}
.logo-link { display: flex; align-items: center; }
.logo-img { height: 26px; display: block; }

.nav-desktop { display: none; align-items: center; gap: 28px; }
.nav-desktop a { font-size: 15px; font-weight: 600; color: var(--ink); }

.nav-toggle {
  background: none;
  border: none;
  padding: 8px;
  display: flex;
  flex-direction: column;
  gap: 5px;
  cursor: pointer;
}
.nav-toggle span { display: block; width: 22px; height: 2px; background: var(--ink); }

.nav-mobile {
  position: fixed;
  top: 56px; left: 0; right: 0;
  background: #FFFFFF;
  box-shadow: 0 4px 12px var(--ink-10);
  display: none;
  flex-direction: column;
  padding: 12px 20px;
  gap: 4px;
  z-index: 49;
}
.nav-mobile.open { display: flex; }
.nav-mobile a {
  font-size: 16px;
  font-weight: 600;
  color: var(--ink);
  padding: 12px 0;
  border-bottom: 1px solid var(--ink-08);
}
.nav-mobile a:last-child { border-bottom: none; }

@media (min-width: 900px) {
  .nav-desktop { display: flex; }
  .nav-toggle { display: none; }
}

/* Sticky WhatsApp bar */
.sticky-wa {
  position: fixed;
  left: 0; right: 0; bottom: 0;
  z-index: 40;
  transform: translateY(120%);
  transition: transform 0.3s ease;
}
.sticky-wa.visible { transform: translateY(0); }
.sticky-wa-link {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  width: 100%;
  height: 56px;
  background: var(--blue);
  color: #FFFFFF;
  font-size: 16px;
  font-weight: 700;
}
.sticky-wa-link:hover { color: #FFFFFF; }

/* Buttons */
.btn-primary {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  background: var(--blue);
  color: #FFFFFF;
  font-size: 17px;
  font-weight: 700;
  padding: 16px 30px;
  border-radius: 999px;
  min-height: 44px;
}
.btn-primary:hover { color: #FFFFFF; background: var(--blue-hover); }
.btn-full {
  display: flex;
  width: 100%;
  justify-content: center;
  font-size: 16px;
  padding: 14px;
}

/* Sections */
.section { padding: 72px 24px; }
.section-inner { max-width: 640px; margin: 0 auto; }
.section-inner.narrow { max-width: 640px; }
.section-alt { background: var(--gray-bg); }
.section-dark { background: var(--ink); color: #FFFFFF; }

.kicker { font-size: 14px; font-weight: 600; color: var(--blue); margin-bottom: 14px; }
.section-body { font-size: 16px; line-height: 1.6; color: var(--ink-65); margin-top: 12px; }
.section-dark .section-body { color: var(--white-65); }

h2 { font-size: 28px; font-weight: 800; margin-bottom: 12px; }
#problema h2 { margin-bottom: 20px; }

.reveal {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}
.reveal.visible { opacity: 1; transform: none; }

/* Hero */
.hero {
  padding: 88px 24px 56px;
  max-width: 1000px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 40px;
}
.hero-copy { flex: 1; min-width: 0; }
h1 {
  font-size: 34px;
  line-height: 1.15;
  font-weight: 800;
  margin: 0 0 16px;
  letter-spacing: -0.01em;
}
h1 .accent { color: var(--blue); }
.hero-sub {
  font-size: 18px;
  line-height: 1.5;
  color: var(--ink-72);
  margin: 0 0 28px;
  max-width: 440px;
}
.hero-price { font-size: 16px; font-weight: 700; color: var(--ink); margin-top: 16px; }
.hero-media { flex: 1; min-width: 0; width: 100%; max-width: 340px; }
.hero-img {
  aspect-ratio: 4/5;
  width: 100%;
  border-radius: 16px;
  object-fit: cover;
  border: 1px solid var(--ink-08);
  display: block;
}

@media (min-width: 900px) {
  .hero { flex-direction: row; align-items: center; }
  h1 { font-size: 46px; }
}

/* AI mockup */
.category-chip-row { display: flex; flex-wrap: wrap; gap: 10px; margin: 24px 0 32px; }
.category-chip { padding: 12px 20px; font-size: 15px; }

.ai-mock {
  background: #FFFFFF;
  border: 1px solid var(--ink-10);
  border-radius: 12px;
  padding: 20px;
  max-width: 420px;
}
.ai-mock-header {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-bottom: 16px;
  padding-bottom: 14px;
  border-bottom: 1px solid var(--ink-08);
}
.ai-mock-spark {
  width: 22px; height: 22px;
  border-radius: 50%;
  background: var(--blue-10);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}
.ai-mock-title { font-size: 13px; font-weight: 600; color: var(--ink-55); }
.ai-bubble-user {
  background: var(--gray-bg);
  border-radius: 10px;
  padding: 10px 14px;
  font-size: 14px;
  color: var(--ink);
  max-width: 75%;
  margin-left: auto;
  margin-bottom: 12px;
}
.ai-typing {
  display: flex;
  gap: 4px;
  align-items: center;
  background: var(--blue-08);
  border-radius: 10px;
  padding: 12px 16px;
  width: fit-content;
}
.ai-typing.hidden { display: none; }
.ai-typing span {
  width: 6px; height: 6px;
  border-radius: 50%;
  background: rgba(17,17,17,0.35);
  animation: tapticaDot 1.1s infinite ease-in-out;
}
.ai-typing span:nth-child(2) { animation-delay: 0.15s; }
.ai-typing span:nth-child(3) { animation-delay: 0.3s; }
.ai-bubble-answer {
  background: var(--blue-08);
  border-radius: 10px;
  padding: 10px 14px;
  font-size: 14px;
  color: var(--ink);
  line-height: 1.5;
  max-width: 85%;
}

/* Steps */
.steps-inner { max-width: 640px; }
.steps-inner .section-body { margin-bottom: 32px; }
@media (min-width: 900px) {
  .steps-inner { max-width: 900px; }
}
.steps-gif { border-radius: 14px; display: block; width: 100%; height: auto; object-fit: cover; }
.steps-gif-mobile { width: 100%; max-width: 160px; margin: 0 auto 32px; }
.steps-gif-desktop { display: none; }
@media (min-width: 900px) {
  .steps-gif-mobile { display: none; }
  .steps-gif-desktop { display: block; width: 220px; flex-shrink: 0; }
}
.steps-row { display: flex; flex-direction: column; gap: 40px; align-items: flex-start; }
@media (min-width: 900px) {
  .steps-row { flex-direction: row; }
}
.steps-list { flex: 1; min-width: 0; display: flex; flex-direction: column; gap: 32px; }
.step { display: flex; gap: 20px; align-items: flex-start; }
.step-icon {
  width: 56px; height: 56px;
  border-radius: 50%;
  border: 1px solid rgba(17,17,17,0.15);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  color: var(--blue);
}
.step-icon-gold { color: var(--gold); }
.step-icon .star { font-size: 24px; color: var(--gold); line-height: 1; }
.step-number { font-size: 13px; font-weight: 700; color: var(--blue); margin-bottom: 4px; }
.step-title { font-size: 18px; font-weight: 700; margin-bottom: 6px; }
.step-desc { font-size: 15px; line-height: 1.5; color: var(--ink-65); }

.chip-row { display: flex; gap: 10px; }
.chip {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 8px 14px;
  border-radius: 999px;
  border: 1px solid var(--blue-40);
  background: #FFFFFF;
  color: var(--blue);
  font-size: 13px;
  font-weight: 700;
  cursor: pointer;
}
.chip.active { background: var(--blue); color: #FFFFFF; border-color: var(--blue); }

.video-embed {
  margin-top: 16px;
  position: relative;
  width: 100%;
  max-width: 220px;
  aspect-ratio: 9/16;
  border-radius: 14px;
  overflow: hidden;
  background: #000;
}
.video-embed[hidden] { display: none; }

/* Experiencia (dark) */
.experiencia-body {
  display: flex;
  flex-direction: column;
  gap: 40px;
  margin-top: 40px;
}
.phone-mock {
  border: 2px solid var(--white-18);
  border-radius: 20px;
  padding: 20px;
  max-width: 280px;
}
.phone-mock-card { background: #FFFFFF; border-radius: 12px; padding: 18px; }
.phone-mock-stars { color: var(--gold); font-size: 18px; letter-spacing: 2px; margin-bottom: 8px; }
.phone-mock-text { color: var(--ink); font-size: 14px; line-height: 1.5; margin-bottom: 6px; }
.phone-mock-label { color: var(--ink-45); font-size: 12px; }
.experiencia-subtitle { font-size: 22px; font-weight: 800; margin-bottom: 10px; }

/* Features */
.features-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
  margin-top: 36px;
}
.feature-card {
  background: #FFFFFF;
  border: 1px solid var(--ink-10);
  border-radius: 14px;
  padding: 22px 18px;
}
.feature-icon { color: var(--blue); margin-bottom: 16px; }
.feature-title { font-size: 16px; font-weight: 700; margin-bottom: 6px; }
.feature-desc { font-size: 14px; line-height: 1.5; color: var(--ink-65); }

/* Momento */
.momento-inner { display: flex; flex-direction: column; gap: 32px; }
.momento-title { font-size: 26px; line-height: 1.3; }
.carousel {
  position: relative;
  aspect-ratio: 4/5;
  width: 100%;
  max-width: 320px;
  border-radius: 16px;
  overflow: hidden;
  border: 1px solid var(--ink-08);
  touch-action: pan-y;
}
.carousel-img {
  position: absolute;
  top: 0; left: 0;
  width: 100%; height: 100%;
  object-fit: cover;
  opacity: 0;
  transition: opacity 0.4s ease;
}
.carousel-img.active { opacity: 1; }
.carousel-arrow {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  width: 36px; height: 36px;
  border-radius: 50%;
  background: var(--white-85);
  border: none;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
}
.carousel-arrow-left { left: 10px; }
.carousel-arrow-right { right: 10px; }
.carousel-dots {
  position: absolute;
  bottom: 10px; left: 0; right: 0;
  display: flex;
  justify-content: center;
  gap: 6px;
}
.carousel-dot {
  width: 6px; height: 6px;
  border-radius: 50%;
  background: var(--ink-25);
}
.carousel-dot.active { background: var(--blue); }
.momento-list { display: flex; flex-direction: column; gap: 14px; }
.momento-item { display: flex; gap: 12px; align-items: center; font-size: 16px; }
.momento-item .dash { color: var(--blue); font-weight: 700; }

/* Pricing */
.pricing-list { display: flex; flex-direction: column; gap: 20px; margin-top: 36px; }
.price-card {
  background: #FFFFFF;
  border: 1px solid var(--ink-12);
  border-radius: 16px;
  padding: 28px 24px;
}
.price-card-featured { position: relative; border: 2px solid var(--blue); }
.price-badge {
  position: absolute;
  top: -13px; left: 24px;
  background: var(--gold);
  color: var(--ink);
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.03em;
  text-transform: uppercase;
  padding: 5px 12px;
  border-radius: 999px;
}
.price-card-top { display: flex; justify-content: space-between; align-items: flex-start; gap: 14px; }
.price-label { font-size: 15px; font-weight: 700; color: var(--ink-55); margin-bottom: 6px; }
.price-amount { font-size: 34px; font-weight: 800; margin-bottom: 6px; }
.price-thumb {
  width: 64px; height: 64px;
  object-fit: cover;
  border-radius: 10px;
  border: 1px solid var(--ink-12);
  cursor: pointer;
  flex-shrink: 0;
}
.price-subcopy { font-size: 14px; color: var(--blue); font-weight: 600; margin: 0 0 14px; }
.price-desc { font-size: 14px; line-height: 1.6; color: var(--ink-65); margin-bottom: 22px; }

/* FAQ */
.faq-list { display: flex; flex-direction: column; margin-top: 32px; }
.faq-item { border-bottom: 1px solid var(--ink-10); }
.faq-question {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 18px 0;
  cursor: pointer;
  font-size: 16px;
  font-weight: 600;
}
.faq-glyph { font-size: 20px; color: var(--blue); flex-shrink: 0; }
.faq-answer {
  padding: 0 0 20px;
  font-size: 15px;
  line-height: 1.6;
  color: var(--ink-65);
}
.faq-answer[hidden] { display: none; }

/* Footer */
.footer-inner { text-align: center; padding: 0; }
.footer .section-inner { padding: 72px 24px; }
.footer h2 { margin-bottom: 28px; }
.footer-cta { margin-bottom: 48px; }
.footer-nav { display: flex; justify-content: center; gap: 28px; margin-bottom: 28px; flex-wrap: wrap; }
.footer-nav a { color: var(--white-70); font-size: 14px; }
.footer-logo { height: 28px; display: inline-block; margin-bottom: 12px; }
.footer-copyright { font-size: 13px; color: var(--white-4); }

/* Lightbox */
.lightbox {
  display: none;
  position: fixed;
  top: 0; left: 0; right: 0; bottom: 0;
  background: rgba(17,17,17,0.85);
  align-items: center;
  justify-content: center;
  z-index: 100;
  padding: 24px;
}
.lightbox.open { display: flex; }
.lightbox img { max-width: 100%; max-height: 90vh; border-radius: 12px; }