/* ============================================================
   LEYPAD — main.css
   Mobile-first. Sin frameworks. Sin build.
   ============================================================ */

/* ── Variables ─────────────────────────────────────────────── */
:root {
  --ink:         #0A0E1A;
  --ink-2:       #1A1F2E;
  --paper:       #FBF9F4;
  --paper-2:     #F5F1E8;
  --line:        #E8E2D3;
  --gold:        #B8862F;
  --gold-bright: #D4A248;
  --muted:       #6B6F7A;

  --font-display: 'Fraunces', Georgia, serif;
  --font-ui:      'Inter', system-ui, sans-serif;

  --radius:  4px;
  --max-w:   800px;
  --gap:     clamp(1.5rem, 5vw, 3rem);
}

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

html {
  scroll-behavior: smooth;
  font-size: 16px;
}

body {
  font-family: var(--font-ui);
  background-color: var(--paper);
  color: var(--ink);
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
}

img, svg { display: block; max-width: 100%; }

a { color: inherit; }

/* ── Focus visible ──────────────────────────────────────────── */
:focus-visible {
  outline: 2px solid var(--gold);
  outline-offset: 3px;
}

/* ── Container ──────────────────────────────────────────────── */
.container {
  width: 100%;
  max-width: var(--max-w);
  margin-inline: auto;
  padding-inline: 1.25rem;
}

/* ── Botones ────────────────────────────────────────────────── */
.btn {
  display: inline-block;
  font-family: var(--font-ui);
  font-size: 0.9375rem;
  font-weight: 600;
  text-decoration: none;
  border-radius: var(--radius);
  padding: 0.75rem 1.5rem;
  cursor: pointer;
  transition: background-color 0.15s ease, color 0.15s ease, border-color 0.15s ease;
  white-space: nowrap;
}

.btn--primary {
  background-color: var(--ink);
  color: var(--paper);
  border: 2px solid var(--ink);
}
.btn--primary:hover,
.btn--primary:focus-visible {
  background-color: var(--ink-2);
  border-color: var(--ink-2);
}

.btn--ghost {
  background-color: transparent;
  color: var(--ink);
  border: 2px solid var(--line);
}
.btn--ghost:hover,
.btn--ghost:focus-visible {
  border-color: var(--ink);
}

.btn--large {
  font-size: 1.0625rem;
  padding: 0.875rem 2rem;
}

/* ── Hero ───────────────────────────────────────────────────── */
.hero {
  background-color: var(--paper);
  border-bottom: 1px solid var(--line);
  padding-block: clamp(4rem, 12vw, 8rem);
}

.hero__inner {
  text-align: center;
}

.eyebrow {
  font-family: var(--font-ui);
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--gold);
  margin-bottom: 1.25rem;
}

.hero__title {
  font-family: var(--font-display);
  font-size: clamp(2.25rem, 6vw, 4rem);
  font-weight: 600;
  line-height: 1.1;
  color: var(--ink);
  margin-bottom: 1.25rem;
  letter-spacing: -0.02em;
  text-wrap: balance;
}

.hero__subtitle {
  font-size: clamp(1rem, 2.5vw, 1.25rem);
  color: var(--muted);
  max-width: 520px;
  margin-inline: auto;
  margin-bottom: 2.5rem;
}

.hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  justify-content: center;
}

/* ── Secciones ──────────────────────────────────────────────── */
.section {
  padding-block: clamp(3rem, 8vw, 6rem);
}

.section--alt {
  background-color: var(--paper-2);
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}

.section__title {
  font-family: var(--font-display);
  font-size: clamp(1.75rem, 4vw, 2.5rem);
  font-weight: 400;
  line-height: 1.15;
  letter-spacing: -0.01em;
  color: var(--ink);
  margin-bottom: 1.5rem;
}

.section__lead {
  font-size: clamp(1rem, 2vw, 1.125rem);
  color: var(--ink-2);
  max-width: 600px;
  margin-bottom: 1rem;
}

.section__body {
  font-size: 1rem;
  color: var(--muted);
  max-width: 600px;
  margin-bottom: 2.5rem;
}

/* ── Códigos ────────────────────────────────────────────────── */
.codigos {
  border-top: 1px solid var(--line);
  padding-top: 2rem;
  margin-top: 2rem;
}

.codigos__title {
  font-family: var(--font-ui);
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--muted);
  margin-bottom: 1rem;
}

.codigos__list {
  list-style: none;
  display: grid;
  grid-template-columns: 1fr;
  gap: 0.5rem;
}

.codigos__list li {
  font-size: 0.9375rem;
  color: var(--ink-2);
  padding-left: 1.25rem;
  position: relative;
}

.codigos__list li::before {
  content: '—';
  position: absolute;
  left: 0;
  color: var(--gold);
  font-size: 0.75rem;
  top: 0.15em;
}

@media (min-width: 520px) {
  .codigos__list {
    grid-template-columns: 1fr 1fr;
  }
}

/* ── Pasos ──────────────────────────────────────────────────── */
.pasos {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 0;
  counter-reset: none;
  margin-top: 0.5rem;
}

.paso {
  display: flex;
  gap: 1.5rem;
  padding-block: 2rem;
  border-bottom: 1px solid var(--line);
  align-items: flex-start;
}

.paso:first-child {
  border-top: 1px solid var(--line);
}

.paso__num {
  font-family: var(--font-display);
  font-size: 2.5rem;
  font-weight: 300;
  color: var(--gold);
  line-height: 1;
  min-width: 3rem;
  flex-shrink: 0;
  padding-top: 0.1em;
}

.paso__title {
  font-family: var(--font-display);
  font-size: 1.25rem;
  font-weight: 400;
  color: var(--ink);
  margin-bottom: 0.5rem;
}

.paso__desc {
  font-size: 0.9375rem;
  color: var(--muted);
  line-height: 1.6;
}

/* ── Precio ─────────────────────────────────────────────────── */
.pricing-card {
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background-color: var(--paper);
  overflow: hidden;
  margin-top: 1.5rem;
  max-width: 560px;
}

.pricing-card__main {
  padding: clamp(1.5rem, 5vw, 2.5rem);
}

.pricing-card__label {
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--muted);
  margin-bottom: 0.75rem;
}

.pricing-card__price {
  margin-bottom: 1.5rem;
}

.pricing-card__amount {
  font-family: var(--font-display);
  font-size: clamp(3rem, 8vw, 4.5rem);
  font-weight: 600;
  color: var(--ink);
  line-height: 1;
}

.pricing-card__includes {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 0.625rem;
  margin-bottom: 2rem;
}

.pricing-card__includes li {
  font-size: 0.9375rem;
  color: var(--ink-2);
  padding-left: 1.25rem;
  position: relative;
}

.pricing-card__includes li::before {
  content: '✓';
  position: absolute;
  left: 0;
  color: var(--gold);
  font-size: 0.875rem;
  font-weight: 600;
}

.pricing-card__sub {
  padding: 1.25rem clamp(1.5rem, 5vw, 2.5rem);
  background-color: var(--paper-2);
  border-top: 1px solid var(--line);
}

.pricing-card__sub-title {
  font-size: 0.9375rem;
  font-weight: 600;
  color: var(--ink-2);
  margin-bottom: 0.5rem;
  display: flex;
  align-items: baseline;
  gap: 0.5rem;
  flex-wrap: wrap;
}

.pricing-card__sub-price {
  font-family: var(--font-display);
  font-size: 1.125rem;
  font-weight: 400;
  color: var(--gold);
}

.pricing-card__sub-desc {
  font-size: 0.875rem;
  color: var(--muted);
  line-height: 1.6;
}

/* ── FAQ ────────────────────────────────────────────────────── */
.faq {
  margin-top: 0.5rem;
}

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

.faq__item:first-child {
  border-top: 1px solid var(--line);
}

.faq__question {
  width: 100%;
  background: none;
  border: none;
  cursor: pointer;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 1rem;
  padding: 1.25rem 0;
  font-family: var(--font-ui);
  font-size: clamp(0.9375rem, 2vw, 1.0625rem);
  font-weight: 500;
  color: var(--ink);
  text-align: left;
  line-height: 1.4;
}

.faq__icon {
  display: inline-block;
  width: 1.25rem;
  height: 1.25rem;
  flex-shrink: 0;
  position: relative;
}

.faq__icon::before,
.faq__icon::after {
  content: '';
  position: absolute;
  background-color: var(--gold);
  border-radius: 2px;
  transition: transform 0.2s ease, opacity 0.2s ease;
}

.faq__icon::before {
  width: 100%;
  height: 2px;
  top: 50%;
  left: 0;
  transform: translateY(-50%);
}

.faq__icon::after {
  width: 2px;
  height: 100%;
  top: 0;
  left: 50%;
  transform: translateX(-50%);
}

.faq__question[aria-expanded="true"] .faq__icon::after {
  transform: translateX(-50%) rotate(90deg);
  opacity: 0;
}

.faq__answer {
  font-size: 0.9375rem;
  color: var(--muted);
  line-height: 1.7;
  padding-bottom: 1.25rem;
  max-width: 640px;
}

.faq__answer[hidden] {
  display: none;
}

/* ── CTA Final ──────────────────────────────────────────────── */
.section--cta {
  background-color: var(--ink);
  border-top: none;
  border-bottom: none;
}

.cta__inner {
  text-align: center;
}

.cta__title {
  font-family: var(--font-display);
  font-size: clamp(1.75rem, 4.5vw, 3rem);
  font-weight: 600;
  line-height: 1.1;
  letter-spacing: -0.02em;
  color: var(--paper);
  margin-bottom: 1rem;
  text-wrap: balance;
}

.cta__sub {
  font-size: clamp(0.9375rem, 2vw, 1.0625rem);
  color: var(--muted);
  margin-bottom: 2rem;
}

.section--cta .btn--primary {
  background-color: var(--gold);
  border-color: var(--gold);
  color: var(--ink);
}

.section--cta .btn--primary:hover,
.section--cta .btn--primary:focus-visible {
  background-color: var(--gold-bright);
  border-color: var(--gold-bright);
}

/* ── Footer ─────────────────────────────────────────────────── */
.footer {
  background-color: var(--ink);
  border-top: 1px solid rgba(255,255,255,0.08);
  padding-block: 1.5rem;
}

.footer__inner {
  text-align: center;
}

.footer__copy {
  font-size: 0.8125rem;
  color: var(--muted);
}

.footer__link {
  color: var(--muted);
  text-decoration: none;
}

.footer__link:hover {
  color: var(--paper);
}

/* ── Reveal (IntersectionObserver) ─────────────────────────── */
.reveal {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 0.55s ease, transform 0.55s ease;
}

.reveal.is-visible {
  opacity: 1;
  transform: translateY(0);
}

/* Respeto preferencia de movimiento reducido */
@media (prefers-reduced-motion: reduce) {
  .reveal {
    opacity: 1;
    transform: none;
    transition: none;
  }
  html { scroll-behavior: auto; }
}

/* ── Responsive ─────────────────────────────────────────────── */
@media (min-width: 768px) {
  .pasos {
    gap: 0;
  }

  .pricing-card {
    display: grid;
    grid-template-columns: 1fr;
  }
}

@media (min-width: 1024px) {
  .container {
    padding-inline: 2rem;
  }
}

/* ── Qué es LeyPad — grid con mockup ───────────────────────── */
.que-es__grid {
  display: flex;
  flex-direction: column;
  gap: 2.5rem;
  margin-bottom: 2.5rem;
}

.que-es__text .section__body {
  margin-bottom: 0;
}

.que-es__device {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.875rem;
}

@media (min-width: 720px) {
  .que-es__grid {
    flex-direction: row;
    align-items: center;
    gap: 3rem;
  }
  .que-es__text {
    flex: 1;
    min-width: 0;
  }
  .que-es__device {
    flex-shrink: 0;
  }
}

/* ── Mockup Kobo CSS ─────────────────────────────────────────── */
.kobo-mockup {
  width: 180px;
  height: 246px;
  background-color: var(--ink);
  border-radius: 14px;
  padding: 7px;
  box-shadow: 0 8px 32px rgba(10, 14, 26, 0.18);
  flex-shrink: 0;
}

.kobo-mockup__screen {
  background-color: var(--paper);
  border-radius: 9px;
  height: 100%;
  padding: 1.125rem 1rem;
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
  overflow: hidden;
}

.kobo-mockup__article {
  font-family: var(--font-ui);
  font-size: 0.5rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--muted);
}

.kobo-mockup__body {
  font-family: var(--font-display);
  font-size: 0.625rem;
  line-height: 1.65;
  color: var(--ink);
}

.kobo-mockup__caption {
  font-size: 0.6875rem;
  color: var(--muted);
  text-align: center;
  line-height: 1.4;
  max-width: 200px;
}

@media (min-width: 720px) {
  .kobo-mockup {
    width: 210px;
    height: 287px;
  }
  .kobo-mockup__article {
    font-size: 0.5625rem;
  }
  .kobo-mockup__body {
    font-size: 0.6875rem;
  }
}

@media (min-width: 1024px) {
  .kobo-mockup {
    width: 260px;
    height: 354px;
  }
  .kobo-mockup__article {
    font-size: 0.625rem;
  }
  .kobo-mockup__body {
    font-size: 0.75rem;
  }
  .kobo-mockup__caption {
    max-width: 260px;
  }
}

/* ── Precio comparativo ──────────────────────────────────────── */
.pricing-card__comparison {
  font-size: 0.8125rem;
  color: var(--muted);
  margin-top: -0.75rem;
  margin-bottom: 1.5rem;
}

/* ── Quién está detrás ───────────────────────────────────────── */
.quien__inner {
  max-width: 640px;
}

.quien__bio {
  font-size: clamp(1rem, 2vw, 1.0625rem);
  color: var(--ink-2);
  line-height: 1.75;
  margin-top: 0.25rem;
  margin-bottom: 1.5rem;
}

.quien__firma {
  font-family: var(--font-display);
  font-size: 0.9375rem;
  font-style: italic;
  color: var(--muted);
}

/* ── [6] 220€ más pequeño en mobile ─────────────────────────── */
@media (max-width: 599px) {
  .pricing-card__amount {
    font-size: 2.25rem;
  }
}

/* ── [7] Códigos: 3 columnas en desktop ─────────────────────── */
@media (min-width: 900px) {
  .codigos__list {
    grid-template-columns: 1fr 1fr 1fr;
  }
}

/* ── [8] Hero CTAs: gap reducido en mobile ───────────────────── */
@media (max-width: 599px) {
  .hero__actions {
    flex-direction: column;
    align-items: center;
    gap: 0.75rem;
  }
}

/* ── [9] Pasos: número encima en mobile ──────────────────────── */
@media (max-width: 599px) {
  .paso {
    flex-direction: column;
    gap: 0.375rem;
  }
  .paso__num {
    font-size: 1.625rem;
    min-width: auto;
    padding-top: 0;
  }
}

/* ── Códigos colapsable ──────────────────────────────────────── */
.codigos__toggle {
  width: 100%;
  background: none;
  border: none;
  cursor: pointer;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 1rem;
  padding: 0;
  font-family: var(--font-ui);
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--muted);
  text-align: left;
}

.codigos__toggle:hover {
  color: var(--ink);
}

.codigos__toggle:hover .codigos__toggle-icon {
  color: var(--gold-bright);
}

.codigos__toggle-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 1.75rem;
  height: 1.75rem;
  flex-shrink: 0;
  font-family: var(--font-ui);
  font-size: 1.5rem;
  font-weight: 400;
  color: var(--gold);
  line-height: 1;
  transition: transform 0.2s ease, color 0.15s ease;
}

.codigos__toggle-icon::before {
  content: '+';
}

.codigos__toggle[aria-expanded="true"] .codigos__toggle-icon {
  transform: rotate(45deg);
}

.codigos__toggle[aria-expanded="false"] + .codigos__panel {
  display: none;
}

.codigos__panel {
  margin-top: 1rem;
}

.codigos__nota {
  margin-top: 1.5rem;
  font-size: 0.875rem;
  color: var(--muted);
  line-height: 1.6;
  max-width: 600px;
}

.codigos__nota a {
  color: var(--gold);
  text-decoration: underline;
  text-underline-offset: 2px;
}

/* ── Pricing promo block ─────────────────────────────────────── */
.pricing-card__promo {
  background-color: var(--paper-2);
  border: 1px solid var(--gold);
  border-radius: var(--radius);
  padding: 1rem 1.25rem;
  margin-bottom: 1.75rem;
}

.pricing-card__promo-label {
  font-family: var(--font-ui);
  font-size: 0.6875rem;
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--gold);
  margin-bottom: 0.5rem;
}

.pricing-card__promo-price {
  font-family: var(--font-display);
  font-size: clamp(1.25rem, 3vw, 1.625rem);
  font-weight: 600;
  color: var(--ink);
  margin-bottom: 0.25rem;
  line-height: 1.2;
}

.pricing-card__promo-amount {
  font-size: clamp(1.5rem, 4vw, 2rem);
}

.pricing-card__promo-desc {
  font-size: 0.8125rem;
  color: var(--muted);
}

/* ── Footer contacto ─────────────────────────────────────────── */
.footer__contact {
  font-size: 0.8125rem;
  color: var(--muted);
  margin-top: 0.375rem;
}

/* ── Sticky CTA ──────────────────────────────────────────────── */
.sticky-cta {
  position: fixed;
  top: 1rem;
  right: 1rem;
  z-index: 1000;
  opacity: 0;
  transform: translateY(-8px);
  transition: opacity 0.3s ease, transform 0.3s ease;
  pointer-events: none;
}

.sticky-cta--visible {
  opacity: 1;
  transform: translateY(0);
  pointer-events: auto;
}

.sticky-cta--visible[aria-hidden="false"] .sticky-cta__btn {
  tabindex: auto;
}

.sticky-cta__btn {
  box-shadow: 0 2px 16px rgba(10, 14, 26, 0.18);
  font-size: 0.875rem;
  padding: 0.625rem 1.25rem;
}

@media (max-width: 599px) {
  .sticky-cta {
    top: 0.75rem;
    right: 0.75rem;
  }
  .sticky-cta__btn {
    font-size: 0.8125rem;
    padding: 0.5rem 1rem;
  }
}

@media (prefers-reduced-motion: reduce) {
  .sticky-cta {
    transition: none;
  }
}

/* ── Garantía microcopy en pricing card ──────────────────────── */
.pricing-card__garantia {
  margin-top: 1rem;
  display: flex;
  flex-direction: column;
  gap: 0.25rem;
}

.pricing-card__garantia p {
  font-size: 0.8125rem;
  color: var(--muted);
  text-align: center;
  line-height: 1.5;
}

/* ── Cards comparativa ───────────────────────────────────────── */
.comp-cards {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1rem;
  margin-top: 1.5rem;
}

.comp-vs {
  display: none;
  font-family: var(--font-display);
  font-size: 1.5rem;
  font-weight: 300;
  font-style: italic;
  color: var(--muted);
  text-align: center;
}

.comp-card {
  border-radius: var(--radius);
  padding: 1.5rem;
  border: 1px solid var(--line);
}

.comp-card--leypad {
  background-color: var(--paper-2);
  border-left: 3px solid var(--gold);
}

.comp-card--papel {
  background-color: #F2EDE2;
  border-left: 3px solid #C4B8A3;
}

.comp-card__title {
  font-family: var(--font-ui);
  font-size: 0.6875rem;
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--muted);
  margin-bottom: 1rem;
}

.comp-card--leypad .comp-card__title {
  color: var(--ink);
}

.comp-card--papel .comp-card__title {
  font-size: 1rem;
  text-transform: none;
  letter-spacing: 0;
  color: var(--ink);
}

.comp-card__list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

.comp-card__list li {
  display: flex;
  gap: 0.625rem;
  align-items: flex-start;
  font-size: 0.9375rem;
  line-height: 1.5;
}

.comp-card--leypad .comp-card__list li {
  color: var(--ink-2);
}

.comp-card--papel .comp-card__list li {
  color: var(--muted);
}

.comp-card__icon {
  flex-shrink: 0;
  font-size: 0.875rem;
  font-weight: 600;
  margin-top: 0.1em;
}

.comp-card--leypad .comp-card__icon {
  color: var(--gold);
}

.comp-card--papel .comp-card__icon {
  color: #A03A2C;
}

.comp-card__eyebrow {
  font-family: var(--font-ui);
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--muted);
  margin-bottom: 0.375rem;
}

.comp-card__item-text {
  text-decoration: line-through;
  text-decoration-color: rgba(160, 58, 44, 0.5);
  text-decoration-thickness: 1px;
}

@media (min-width: 700px) {
  .comp-cards {
    grid-template-columns: 1fr auto 1fr;
    align-items: stretch;
  }
  .comp-vs {
    display: flex;
    align-items: center;
    justify-content: center;
    padding-inline: 0.75rem;
  }
}

/* ── WhatsApp flotante ───────────────────────────────────────── */
.whatsapp-btn {
  position: fixed;
  bottom: 20px;
  right: 20px;
  z-index: 1001;
  width: 56px;
  height: 56px;
  border-radius: 50%;
  background-color: #25D366;
  color: #fff;
  display: flex;
  align-items: center;
  justify-content: center;
  text-decoration: none;
  box-shadow: 0 4px 20px rgba(37, 211, 102, 0.35);
  transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.whatsapp-btn:hover,
.whatsapp-btn:focus-visible {
  transform: scale(1.05);
  box-shadow: 0 6px 24px rgba(37, 211, 102, 0.5);
}

/* Tooltip desktop */
.whatsapp-btn::after {
  content: 'Pregúntanos por WhatsApp';
  position: absolute;
  right: calc(100% + 12px);
  top: 50%;
  transform: translateY(-50%);
  background-color: var(--ink);
  color: var(--paper);
  font-family: var(--font-ui);
  font-size: 0.75rem;
  font-weight: 500;
  padding: 0.375rem 0.75rem;
  border-radius: var(--radius);
  white-space: nowrap;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.2s ease;
}

.whatsapp-btn:hover::after {
  opacity: 1;
}

@media (max-width: 599px) {
  .whatsapp-btn {
    width: 52px;
    height: 52px;
    bottom: 16px;
    right: 16px;
  }
}

/* Sin tooltip en touch */
@media (hover: none) {
  .whatsapp-btn::after {
    display: none;
  }
}