/* =============================================================
   1. Tokens
   ============================================================= */
:root {
  /* Brand palette — Nidia Morales */
  --bg:        #0C0A08;
  --bg-2:      #13100D;
  --bg-3:      #1A1511;
  --cream:     #EDE4D6;
  --cream-2:   #C8BAA4;
  --cream-3:   #7A6F62;
  --gold:      #C9A05A;
  --gold-2:    #A8823E;
  --line:      rgba(237, 228, 214, 0.10);
  --line-gold: rgba(201, 160, 90, 0.30);

  /* Typography */
  --serif:  'Cormorant Garamond', Georgia, serif;
  --sans:   'Inter', system-ui, sans-serif;

  /* Spacing */
  --gutter: clamp(1.25rem, 5vw, 2.5rem);
  --section-gap: clamp(5rem, 12vw, 9rem);

  /* Easings */
  --ease-out:  cubic-bezier(0.16, 1, 0.3, 1);
  --ease-soft: cubic-bezier(0.25, 0.46, 0.45, 0.94);
}

/* =============================================================
   2. Reset & Base
   ============================================================= */
*, *::before, *::after { box-sizing: border-box; margin: 0; }

html {
  -webkit-text-size-adjust: 100%;
  tab-size: 2;
  scroll-behavior: smooth;
  overflow-x: clip;
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
}

body {
  font-family: var(--sans);
  font-size: clamp(15px, 1.05vw, 17px);
  line-height: 1.65;
  background: var(--bg);
  color: var(--cream-2);
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  overflow-x: clip;
  overscroll-behavior-y: none;
}

img, svg { display: block; max-width: 100%; }
img { height: auto; }
button { font: inherit; color: inherit; cursor: pointer; border: 0; background: none; }
a { color: inherit; text-decoration: none; }
p { text-wrap: pretty; }
h1, h2, h3, h4 { text-wrap: balance; line-height: 1.05; letter-spacing: -0.02em; }
strong { color: var(--cream); font-weight: 600; }
ul { list-style: none; padding: 0; }

::selection { background: var(--gold); color: var(--bg); }

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

/* =============================================================
   3. Utilities
   ============================================================= */
.skip-link {
  position: fixed; top: -100px; left: 1rem;
  padding: .5rem 1rem; background: var(--cream); color: var(--bg);
  z-index: 9999; font-size: .875rem; font-weight: 500;
}
.skip-link:focus { top: 1rem; }

.container {
  width: 100%;
  max-width: 1160px;
  margin-inline: auto;
  padding-inline: var(--gutter);
}

.container--narrow {
  max-width: 840px;
}

/* =============================================================
   4. Typography
   ============================================================= */
.kicker {
  display: flex;
  align-items: center;
  gap: .75rem;
  font-family: var(--sans);
  font-size: clamp(.65rem, 1.1vw, .75rem);
  font-weight: 500;
  letter-spacing: .14em;
  text-transform: uppercase;
  color: var(--gold);
  margin-bottom: 1.25rem;
}

.kicker::before {
  content: '';
  display: inline-block;
  width: 2rem;
  height: 1px;
  background: var(--gold);
  flex-shrink: 0;
}

.section-title {
  font-family: var(--serif);
  font-size: clamp(2.2rem, 5vw, 3.8rem);
  font-weight: 400;
  color: var(--cream);
  line-height: 1.08;
  margin-bottom: 1.5rem;
}

.section-title em {
  font-style: italic;
  color: var(--gold);
}

.section-lead {
  font-size: clamp(1rem, 1.5vw, 1.15rem);
  color: var(--cream-2);
  margin-bottom: 2.5rem;
  max-width: 56ch;
}

.section-close {
  margin-top: 2.5rem;
  font-size: clamp(.95rem, 1.3vw, 1.05rem);
  color: var(--cream-2);
  max-width: 60ch;
}

/* =============================================================
   5. Buttons
   ============================================================= */
.btn {
  display: inline-flex;
  align-items: center;
  gap: .5rem;
  padding: .85rem 2rem;
  font-family: var(--sans);
  font-size: .8rem;
  font-weight: 600;
  letter-spacing: .1em;
  text-transform: uppercase;
  border-radius: 2px;
  cursor: pointer;
  transition: background .25s var(--ease-out), color .25s var(--ease-out), transform .2s var(--ease-out), box-shadow .25s var(--ease-out);
  white-space: nowrap;
}

.btn-primary {
  background: var(--gold);
  color: var(--bg);
}
.btn-primary:hover {
  background: var(--gold-2);
  transform: translateY(-2px);
  box-shadow: 0 8px 28px rgba(201, 160, 90, 0.30);
}

.btn-ghost {
  background: transparent;
  color: var(--cream-2);
  border: 1px solid var(--line);
}
.btn-ghost:hover {
  border-color: var(--line-gold);
  color: var(--cream);
  transform: translateY(-2px);
}

.btn-nav {
  background: var(--gold);
  color: var(--bg);
  padding: .6rem 1.4rem;
  font-size: .72rem;
}
.btn-nav:hover {
  background: var(--gold-2);
}

.btn-large {
  padding: 1.1rem 2.8rem;
  font-size: .85rem;
}

/* =============================================================
   6. Splash
   ============================================================= */
.splash {
  position: fixed;
  inset: 0;
  z-index: 9000;
  background: var(--bg);
  display: flex;
  align-items: center;
  justify-content: center;
  transition: opacity .6s var(--ease-out), clip-path .6s var(--ease-out);
  animation: splashSafety .01s 4.5s forwards;
}

@keyframes splashSafety {
  to { opacity: 0; pointer-events: none; clip-path: inset(0 0 100% 0); }
}

.splash.is-out {
  opacity: 0;
  pointer-events: none;
  clip-path: inset(0 0 100% 0);
}

.splash-inner {
  text-align: center;
}

.splash-logo {
  font-family: var(--serif);
  font-size: 3.5rem;
  font-weight: 300;
  color: var(--gold);
  letter-spacing: .15em;
  animation: splashPulse 1.8s var(--ease-soft) forwards;
}

@keyframes splashPulse {
  0%   { opacity: 0; transform: scale(.92); }
  50%  { opacity: 1; transform: scale(1); }
  100% { opacity: 1; transform: scale(1); }
}

/* =============================================================
   7. Nav
   ============================================================= */
.nav {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 800;
  padding: 1.1rem var(--gutter);
  transition: background .3s var(--ease-out), border-color .3s var(--ease-out), backdrop-filter .3s;
  border-bottom: 1px solid transparent;
}

.nav.is-scrolled {
  background: rgba(12, 10, 8, 0.88);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom-color: var(--line);
}

.nav-inner {
  max-width: 1160px;
  margin-inline: auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
}

.nav-brand {
  font-family: var(--serif);
  font-size: 1.15rem;
  font-weight: 400;
  color: var(--cream);
  letter-spacing: .04em;
}

/* =============================================================
   8. Hero
   ============================================================= */
.hero {
  position: relative;
  min-height: 100vh;
  min-height: 100svh;
  display: flex;
  align-items: flex-end;
  overflow: hidden;
}

.hero-bg {
  position: absolute;
  inset: 0;
  z-index: 0;
}

.hero-bg img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center 30%;
  filter: saturate(1.05) contrast(1.03);
}

.hero-tint {
  position: absolute;
  inset: 0;
  background: linear-gradient(
    180deg,
    rgba(12,10,8,0.40) 0%,
    rgba(12,10,8,0.30) 35%,
    rgba(12,10,8,0.70) 70%,
    rgba(12,10,8,0.95) 100%
  );
}

.hero-mesh {
  position: absolute;
  inset: 0;
  z-index: 1;
  background:
    radial-gradient(ellipse 60% 50% at 15% 30%, rgba(201,160,90,0.12), transparent 70%),
    radial-gradient(ellipse 40% 40% at 85% 20%, rgba(201,160,90,0.06), transparent 70%);
  pointer-events: none;
  animation: meshFloat 18s ease-in-out infinite alternate;
}

@keyframes meshFloat {
  0%   { transform: scale(1) translate(0,0); }
  100% { transform: scale(1.04) translate(1%,1.5%); }
}

.hero-grain {
  position: absolute;
  inset: 0;
  z-index: 2;
  opacity: .04;
  mix-blend-mode: overlay;
  pointer-events: none;
  background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 256 256' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='4'/%3E%3C/filter%3E%3Crect width='256' height='256' filter='url(%23n)' opacity='1'/%3E%3C/svg%3E");
  background-size: 220px 220px;
}

.hero-inner {
  position: relative;
  z-index: 3;
  padding-bottom: clamp(3rem, 8vw, 6rem);
  padding-top: 8rem;
}

.hero-title {
  font-family: var(--serif);
  font-size: clamp(2.6rem, 6vw, 5.2rem);
  font-weight: 400;
  color: var(--cream);
  line-height: 1.06;
  margin-bottom: 1.5rem;
  max-width: 20ch;
  text-shadow: 0 2px 32px rgba(0,0,0,0.6);
}

.hero-title em {
  font-style: italic;
  color: var(--gold);
}

.hero-sub {
  font-size: clamp(.95rem, 1.4vw, 1.1rem);
  color: var(--cream-2);
  max-width: 52ch;
  margin-bottom: 2rem;
  line-height: 1.7;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
  margin-bottom: 1.25rem;
}

.hero-note {
  font-size: .75rem;
  color: var(--cream-3);
  letter-spacing: .06em;
}

/* =============================================================
   9. Section — Problema
   ============================================================= */
.section-problema {
  padding-block: var(--section-gap);
}

.questions-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1px;
  background: var(--line);
  border: 1px solid var(--line);
  margin-block: 2rem;
}

.question-card {
  background: var(--bg-2);
  padding: 2rem 1.75rem;
  display: flex;
  gap: 1.25rem;
  align-items: flex-start;
  transition: background .25s var(--ease-out);
}

.question-card:hover {
  background: var(--bg-3);
}

.question-num {
  font-family: var(--sans);
  font-size: .7rem;
  font-weight: 600;
  letter-spacing: .1em;
  color: var(--gold);
  padding-top: .15rem;
  flex-shrink: 0;
}

.question-card p {
  font-family: var(--serif);
  font-size: clamp(1.05rem, 1.6vw, 1.2rem);
  color: var(--cream);
  line-height: 1.4;
}

/* =============================================================
   10. Section — Solución
   ============================================================= */
.section-solucion {
  padding-block: var(--section-gap);
  background: var(--bg-2);
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}

.solucion-layout {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: clamp(3rem, 6vw, 6rem);
  align-items: center;
}

.solucion-text p {
  margin-bottom: 1.25rem;
  color: var(--cream-2);
}

.solucion-text .btn {
  margin-top: .5rem;
}

.mockup-frame {
  position: relative;
  border-radius: 4px;
  overflow: hidden;
}

.mockup-frame::after {
  content: '';
  position: absolute;
  inset: 0;
  border: 1px solid var(--line-gold);
  border-radius: 4px;
  pointer-events: none;
}

.mockup-frame img {
  width: 100%;
  border-radius: 4px;
  filter: saturate(1.05) contrast(1.03);
  transition: transform .5s var(--ease-out);
}

.mockup-frame:hover img {
  transform: scale(1.03);
}

/* =============================================================
   11. Section — Incluye
   ============================================================= */
.section-incluye {
  padding-block: var(--section-gap);
}

.incluye-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1.5rem;
  margin-top: 3rem;
}

.incluye-card {
  background: var(--bg-2);
  border: 1px solid var(--line);
  border-radius: 4px;
  padding: clamp(1.75rem, 3vw, 2.5rem);
  transition: border-color .25s var(--ease-out), transform .3s var(--ease-out);
}

.incluye-card:hover {
  border-color: var(--line-gold);
  transform: translateY(-4px);
}

.incluye-icon {
  font-size: 1.5rem;
  margin-bottom: 1.25rem;
}

.incluye-card h3 {
  font-family: var(--serif);
  font-size: clamp(1.3rem, 2vw, 1.6rem);
  font-weight: 400;
  color: var(--cream);
  margin-bottom: 1rem;
}

.incluye-card p {
  color: var(--cream-2);
  margin-bottom: 1.25rem;
  line-height: 1.65;
}

.module-list {
  display: flex;
  flex-direction: column;
  gap: .75rem;
}

.module-list li {
  display: flex;
  gap: .75rem;
  align-items: flex-start;
  font-size: .875rem;
  color: var(--cream-2);
}

.module-num {
  font-size: .65rem;
  font-weight: 600;
  letter-spacing: .08em;
  color: var(--gold);
  background: rgba(201,160,90,0.12);
  border: 1px solid var(--line-gold);
  padding: .15rem .45rem;
  border-radius: 2px;
  flex-shrink: 0;
  margin-top: .05rem;
}

.workbook-note {
  font-style: italic;
  color: var(--cream-3) !important;
  font-size: .875rem !important;
  border-left: 2px solid var(--line-gold);
  padding-left: 1rem;
}

/* =============================================================
   12. Section — Módulos
   ============================================================= */
.section-modulos {
  padding-block: var(--section-gap);
  background: var(--bg-2);
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}

.section-modulos .section-title {
  margin-bottom: 3rem;
}

.modulos-list {
  display: grid;
  gap: 1px;
  background: var(--line);
  border: 1px solid var(--line);
}

.modulo-item {
  background: var(--bg);
  padding: 2rem 2.25rem;
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 0 2rem;
  align-items: start;
  transition: background .2s var(--ease-out);
}

.modulo-item:hover {
  background: var(--bg-3);
}

.modulo-header {
  display: contents;
}

.modulo-num {
  font-family: var(--sans);
  font-size: .7rem;
  font-weight: 600;
  letter-spacing: .12em;
  color: var(--gold);
  padding-top: .25rem;
}

.modulo-item h3 {
  font-family: var(--serif);
  font-size: clamp(1.15rem, 1.8vw, 1.4rem);
  font-weight: 400;
  color: var(--cream);
  margin-bottom: .5rem;
}

.modulo-item p {
  grid-column: 2;
  color: var(--cream-2);
  font-size: .9rem;
  line-height: 1.6;
}

/* =============================================================
   13. Section — Para quién
   ============================================================= */
.section-paraquien {
  padding-block: var(--section-gap);
}

.paraquien-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: clamp(2rem, 5vw, 5rem);
}

.paraquien-list {
  display: flex;
  flex-direction: column;
  gap: .9rem;
  margin-top: 1.75rem;
}

.paraquien-list li {
  padding-left: 1.5rem;
  position: relative;
  color: var(--cream-2);
  font-size: .9rem;
  line-height: 1.6;
}

.paraquien-list--si li::before {
  content: '✓';
  position: absolute;
  left: 0;
  color: var(--gold);
  font-weight: 600;
}

.paraquien-list--no li::before {
  content: '✗';
  position: absolute;
  left: 0;
  color: var(--cream-3);
}

/* =============================================================
   14. Section — Testimonios
   ============================================================= */
.section-testimonios {
  padding-block: var(--section-gap);
  background: var(--bg-2);
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}

.section-testimonios .section-title {
  margin-bottom: 3rem;
}

.testimonios-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.5rem;
}

.testimonio-card {
  background: var(--bg-3);
  border: 1px solid var(--line);
  border-radius: 4px;
  padding: 2rem;
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
  transition: border-color .25s var(--ease-out), transform .3s var(--ease-out);
}

.testimonio-card:hover {
  border-color: var(--line-gold);
  transform: translateY(-4px);
}

.testimonio-card blockquote p {
  font-family: var(--serif);
  font-size: clamp(1rem, 1.5vw, 1.15rem);
  color: var(--cream);
  line-height: 1.55;
  font-style: italic;
}

.testimonio-card blockquote p::before { content: '"'; color: var(--gold); }
.testimonio-card blockquote p::after  { content: '"'; color: var(--gold); }

.testimonio-footer {
  margin-top: auto;
}

.testimonio-name {
  font-size: .75rem;
  font-weight: 500;
  letter-spacing: .08em;
  text-transform: uppercase;
  color: var(--cream-3);
}

/* =============================================================
   15. Section — Precio
   ============================================================= */
.section-precio {
  padding-block: var(--section-gap);
  position: relative;
  overflow: hidden;
}

.precio-halo {
  position: absolute;
  inset: -40% -20%;
  background: radial-gradient(ellipse 50% 40% at 50% 50%, rgba(201,160,90,0.10), transparent 70%);
  filter: blur(80px);
  pointer-events: none;
  z-index: 0;
}

.precio-inner {
  position: relative;
  z-index: 1;
  text-align: center;
  border: 1px solid var(--line-gold);
  border-radius: 4px;
  padding: clamp(3rem, 6vw, 5rem) clamp(2rem, 5vw, 4rem);
  background: var(--bg-2);
}

.precio-amount {
  display: flex;
  align-items: baseline;
  justify-content: center;
  gap: .5rem;
  margin-block: 1.5rem 1rem;
}

.precio-numero {
  font-family: var(--serif);
  font-size: clamp(4rem, 10vw, 7.5rem);
  font-weight: 300;
  color: var(--cream);
  line-height: 1;
}

.precio-moneda {
  font-family: var(--sans);
  font-size: 1.25rem;
  font-weight: 400;
  color: var(--gold);
  letter-spacing: .1em;
}

.precio-sub {
  font-size: .8rem;
  letter-spacing: .06em;
  color: var(--cream-3);
  margin-bottom: 2rem;
}

.precio-incluye {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 1rem 2rem;
  font-size: .825rem;
  color: var(--cream-2);
  margin-bottom: 2.5rem;
}

.precio-incluye span::before {
  color: var(--gold);
  margin-right: .3rem;
}

.precio-garantia {
  margin-top: 2rem;
  font-size: .85rem;
  color: var(--cream-3);
  max-width: 52ch;
  margin-inline: auto;
  line-height: 1.7;
}

/* =============================================================
   16. Section — FAQ
   ============================================================= */
.section-faq {
  padding-block: var(--section-gap);
}

.section-faq .section-title {
  margin-bottom: 3rem;
}

.faq-list {
  display: flex;
  flex-direction: column;
  gap: 0;
}

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

.faq-item:first-of-type {
  border-top: 1px solid var(--line);
}

.faq-question {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 1.4rem 0;
  font-family: var(--serif);
  font-size: clamp(1rem, 1.5vw, 1.15rem);
  color: var(--cream);
  cursor: pointer;
  list-style: none;
  gap: 1rem;
  transition: color .2s var(--ease-out);
}

.faq-question:hover {
  color: var(--gold);
}

.faq-question::-webkit-details-marker { display: none; }

.faq-question::after {
  content: '+';
  font-family: var(--sans);
  font-size: 1.4rem;
  font-weight: 300;
  color: var(--gold);
  flex-shrink: 0;
  line-height: 1;
  transition: transform .3s var(--ease-out);
}

details[open] .faq-question::after {
  transform: rotate(45deg);
}

.faq-answer {
  padding-bottom: 1.5rem;
}

.faq-answer p {
  color: var(--cream-2);
  font-size: .925rem;
  line-height: 1.7;
  max-width: 65ch;
}

.faq-cta {
  margin-top: 4rem;
  text-align: center;
}

.faq-cta p {
  font-family: var(--serif);
  font-size: clamp(1.2rem, 2vw, 1.5rem);
  color: var(--cream);
  margin-bottom: 1.5rem;
  font-style: italic;
}

/* =============================================================
   17. Footer
   ============================================================= */
.footer {
  padding-block: 3.5rem;
  border-top: 1px solid var(--line);
  background: var(--bg-2);
}

.footer-inner {
  text-align: center;
  display: flex;
  flex-direction: column;
  gap: .6rem;
}

.footer-brand {
  font-family: var(--serif);
  font-size: 1.2rem;
  color: var(--cream);
  letter-spacing: .04em;
}

.footer-tagline {
  font-size: .875rem;
  color: var(--cream-3);
  font-style: italic;
}

.footer-copy {
  font-size: .75rem;
  color: var(--cream-3);
  letter-spacing: .06em;
}

/* =============================================================
   18. Reveal Animations
   ============================================================= */
[data-reveal] {
  opacity: 0;
  transform: translateY(32px);
  transition: opacity .7s var(--ease-out), transform .7s var(--ease-out);
}

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

/* Staggered children */
[data-reveal]:nth-child(2) { transition-delay: .1s; }
[data-reveal]:nth-child(3) { transition-delay: .2s; }
[data-reveal]:nth-child(4) { transition-delay: .3s; }

/* =============================================================
   19. Responsive — Mobile First
   ============================================================= */
@media (max-width: 719px) {
  .questions-grid {
    grid-template-columns: 1fr;
  }

  .solucion-layout {
    grid-template-columns: 1fr;
  }

  .solucion-image {
    order: -1;
  }

  .incluye-grid {
    grid-template-columns: 1fr;
  }

  .modulo-item {
    grid-template-columns: 1fr;
  }

  .modulo-item p {
    grid-column: 1;
  }

  .paraquien-grid {
    grid-template-columns: 1fr;
  }

  .testimonios-grid {
    grid-template-columns: 1fr;
  }

  .hero-actions {
    flex-direction: column;
    align-items: flex-start;
  }

  .hero-actions .btn {
    width: 100%;
    justify-content: center;
  }
}

@media (min-width: 720px) and (max-width: 959px) {
  .testimonios-grid {
    grid-template-columns: 1fr 1fr;
  }

  .testimonios-grid .testimonio-card:last-child {
    grid-column: span 2;
    max-width: 440px;
    margin-inline: auto;
  }
}

/* =============================================================
   20. Reduced Motion — only intrusive effects
   ============================================================= */
@media (prefers-reduced-motion: reduce) {
  .hero-mesh { animation: none; }
  .splash-logo { animation: none; opacity: 1; }
}