/* ============================================================
   Factu — Design tokens (ver DESIGN.md)
   ============================================================ */
:root {
  /* color: marca */
  --color-blue: #3B8ABB;
  --color-dark: #363636;
  --color-dark-alt: #282A3A;
  --color-light: #F8F8F8;
  --color-white: #FFFFFF;
  --color-taupe: #D4CECB;

  /* color: derivados */
  --color-blue-cta: #2C6E93;
  --color-blue-tint: #EAF3F8;
  --color-taupe-line: #E4DFDC;
  --color-dark-text: #2A2A2A;

  /* tipografia */
  --font-display: "Fraunces", serif;
  --font-body: "IBM Plex Sans", sans-serif;
  --font-mono: "IBM Plex Mono", monospace;

  --text-display-lg: 2.5rem;
  --text-display-md: 1.875rem;
  --text-display-sm: 1.5rem;
  --text-body-lg: 1.125rem;
  --text-body: 1rem;
  --text-body-sm: 0.875rem;
  --text-mono-price: 2rem;
  --text-mono-data: 0.9375rem;

  /* espaciado */
  --space-1: 8px;
  --space-2: 16px;
  --space-3: 24px;
  --space-4: 32px;
  --space-5: 40px;
  --space-6: 48px;
  --space-7: 56px;
  --space-8: 96px;
  --space-9: 140px;

  --space-between-dobras: var(--space-8);
  --space-inside-dobra: 40px;

  --container-max: 1120px;
  --padding-inline: 24px;

  --radius-control: 4px;
  --radius-card: 2px;
  --shadow-soft: 0 2px 8px rgba(40, 42, 58, 0.08);

  --touch-target-min: 44px;
}

@media (min-width: 1024px) {
  :root {
    --text-display-lg: 3.5rem;
    --text-display-md: 2.25rem;
    --space-between-dobras: var(--space-9);
    --space-inside-dobra: 56px;
    --padding-inline: 48px;
  }
}

/* ============================================================
   Reset mínimo
   ============================================================ */
* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: var(--font-body);
  font-size: var(--text-body);
  color: var(--color-dark-text);
  background: var(--color-white);
  line-height: 1.5;
}
img { max-width: 100%; display: block; }
ul, ol { padding: 0; margin: 0; list-style: none; }
a { color: inherit; }
h1, h2, h3, p, figure { margin: 0; }

:focus-visible {
  outline: 2px solid var(--color-blue-cta);
  outline-offset: 2px;
}

.container {
  max-width: var(--container-max);
  margin-inline: auto;
  padding-inline: var(--padding-inline);
}

/* ============================================================
   Tipografia utilitaria
   ============================================================ */
.h-display-lg {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: var(--text-display-lg);
  line-height: 1.1;
  color: var(--color-blue);
  max-width: 20ch;
}
.h-display-md {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: var(--text-display-md);
  line-height: 1.2;
  color: var(--color-blue);
  max-width: 24ch;
  margin-bottom: var(--space-4);
}
.h-on-dark { color: var(--color-white); }
.text-body-lg { font-size: var(--text-body-lg); }
.text-body-sm { font-size: var(--text-body-sm); color: var(--color-dark-text); opacity: 0.8; }
.eyebrow {
  font-size: var(--text-body-sm);
  text-transform: uppercase;
  letter-spacing: 0.04em;
  color: var(--color-dark-text);
  opacity: 0.7;
  margin-bottom: var(--space-2);
}
.badge {
  display: inline-block;
  background: var(--color-blue-tint);
  color: var(--color-blue-cta);
  font-family: var(--font-mono);
  font-size: var(--text-mono-data);
  font-weight: 600;
  padding: 6px 12px;
  border-radius: var(--radius-control);
  margin-bottom: var(--space-3);
}

/* ============================================================
   Estructura de dobras
   ============================================================ */
.dobra {
  padding-block: calc(var(--space-between-dobras) / 2);
}
.dobra--hero {
  padding-top: var(--space-5);
}
@media (min-width: 1024px) {
  .dobra--hero { padding-top: var(--space-7); }
}
.dobra--light { background: var(--color-light); }
.dobra--white { background: var(--color-white); }
.dobra--dark { background: var(--color-dark); }
.dobra--dark-alt { background: var(--color-dark-alt); }

/* animación de entrada (respeta prefers-reduced-motion) */
.dobra {
  opacity: 0;
  transform: translateY(8px);
  transition: opacity 300ms ease-out, transform 300ms ease-out;
}
.dobra.is-visible {
  opacity: 1;
  transform: translateY(0);
}
@media (prefers-reduced-motion: reduce) {
  .dobra {
    opacity: 1;
    transform: none;
    transition: none;
  }
}

/* ============================================================
   Dobra 1: Hero
   ============================================================ */
.dobra__grid {
  display: grid;
  gap: var(--space-inside-dobra);
}
.dobra__copy > * + * { margin-top: var(--space-3); }

@media (min-width: 1024px) {
  .dobra__grid {
    grid-template-columns: 1.1fr 0.9fr;
    align-items: center;
  }
}

.hero-image {
  display: block;
  width: 100%;
  max-width: 480px;
  height: auto;
  margin-inline: auto;
}
@media (min-width: 1024px) {
  .hero-image {
    max-width: 100%;
  }
}

/* ============================================================
   Mockup tipo documento / factura
   ============================================================ */
.invoice-mockup {
  background: var(--color-white);
  border: 1px solid var(--color-taupe-line);
  border-radius: var(--radius-card);
  box-shadow: var(--shadow-soft);
  padding: var(--space-3);
  font-family: var(--font-mono);
  font-size: var(--text-mono-data);
}
.invoice-mockup__bar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding-bottom: var(--space-2);
  border-bottom: 1px solid var(--color-taupe-line);
  margin-bottom: var(--space-2);
}
.invoice-mockup__brand {
  font-family: var(--font-display);
  font-weight: 700;
  color: var(--color-blue);
  font-size: 1.25rem;
}
.invoice-mockup__tag {
  background: var(--color-blue-tint);
  color: var(--color-blue-cta);
  padding: 2px 8px;
  border-radius: var(--radius-control);
  font-size: 0.75rem;
}
.invoice-mockup__folio {
  color: var(--color-dark-text);
  opacity: 0.6;
  margin-bottom: var(--space-2);
}
.invoice-mockup__row {
  display: flex;
  justify-content: space-between;
  padding: 6px 0;
  border-top: 1px dashed var(--color-taupe-line);
}
.invoice-mockup__row--head {
  border-top: none;
  opacity: 0.6;
  font-size: 0.8125rem;
}
.invoice-mockup__row--total {
  font-weight: 600;
  border-top: 1px solid var(--color-taupe-line);
}
.invoice-mockup__status {
  margin-top: var(--space-2);
  color: var(--color-blue-cta);
  font-size: 0.8125rem;
}
.bundle-mockup {
  display: block;
  width: 100%;
  max-width: 400px;
  height: auto;
  margin-inline: auto;
  margin-top: var(--space-4);
}

/* ============================================================
   Dobra 2: Prueba social
   ============================================================ */
.social-proof-grid {
  display: grid;
  gap: var(--space-4);
  margin-top: var(--space-inside-dobra);
}
@media (min-width: 1024px) {
  .social-proof-grid { grid-template-columns: repeat(2, 1fr); }
}
.social-proof-card__img {
  border-radius: var(--radius-card);
  box-shadow: var(--shadow-soft);
  width: 100%;
}

/* ============================================================
   Dobra 3: Voces en la cabeza
   ============================================================ */
.voice-list__lead {
  font-size: var(--text-body-sm);
  text-transform: uppercase;
  letter-spacing: 0.04em;
  color: var(--color-taupe);
  margin-bottom: var(--space-4);
}
.voice-list { display: flex; flex-direction: column; gap: var(--space-4); }
.voice-list__item {
  font-family: var(--font-display);
  font-style: normal;
  font-weight: 600;
  font-size: var(--text-display-sm);
  line-height: 1.35;
  color: var(--color-white);
}

/* ============================================================
   Dobra 4: Transición dolor a solución
   ============================================================ */
.reason-list { display: flex; flex-direction: column; gap: var(--space-3); margin-top: var(--space-inside-dobra); }
.reason-list__item {
  display: flex;
  gap: var(--space-2);
  align-items: baseline;
}
.reason-list__icon {
  font-family: var(--font-mono);
  color: var(--color-blue);
  font-weight: 600;
  flex-shrink: 0;
}

/* ============================================================
   Dobra 5: Paso a paso
   ============================================================ */
.steps-list {
  display: flex;
  flex-direction: column;
  gap: var(--space-4);
  margin-top: var(--space-inside-dobra);
}
.steps-list__item {
  display: flex;
  gap: var(--space-3);
  align-items: baseline;
}
.steps-list__number {
  font-family: var(--font-mono);
  font-size: 1.5rem;
  font-weight: 600;
  color: var(--color-blue);
  flex-shrink: 0;
}
.steps-list__title { font-size: var(--text-body-lg); font-weight: 600; }

/* ============================================================
   Dobra 6: Todo lo que vas a recibir
   ============================================================ */
.deliverables-list {
  display: flex;
  flex-direction: column;
  margin-top: var(--space-inside-dobra);
}
.deliverables-list__item {
  display: flex;
  gap: var(--space-3);
  padding-block: var(--space-2);
}
.deliverables-list__item--highlight {
  border-left: 3px solid var(--color-blue);
  padding-left: var(--space-3);
}
.deliverables-list__name { font-size: var(--text-body-lg); font-weight: 600; margin-bottom: 4px; }
.receipt-line {
  border-top: 1px dashed var(--color-taupe-line);
}
.receipt-line--on-dark { border-top-color: rgba(255,255,255,0.25); margin-top: var(--space-4); }
.receipt-line--footer { border-top: 1px dashed var(--color-taupe-line); max-width: var(--container-max); margin: 0 auto; }

/* ============================================================
   Dobra 7: Para quién es
   ============================================================ */
.fit-grid {
  display: grid;
  gap: var(--space-4);
  margin-top: var(--space-inside-dobra);
}
@media (min-width: 1024px) {
  .fit-grid { grid-template-columns: 1fr 1fr; }
}
.fit-column { padding: var(--space-3); border-left: 3px solid var(--color-taupe); }
.fit-column--yes { border-left-color: var(--color-blue); }
.fit-column__title { font-weight: 600; margin-bottom: var(--space-2); }
.fit-column__list { display: flex; flex-direction: column; gap: var(--space-2); }

/* ============================================================
   Dobra 8: Anclaje
   ============================================================ */
.anchor-list {
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
  margin-top: var(--space-inside-dobra);
  color: var(--color-white);
}
.anchor-list__item {
  display: flex;
  justify-content: space-between;
  padding-block: var(--space-1);
  border-bottom: 1px dashed rgba(255,255,255,0.2);
}
.anchor-list__price {
  font-family: var(--font-mono);
  color: var(--color-taupe);
}
.anchor-list__included {
  font-family: var(--font-mono);
  color: var(--color-blue);
  text-transform: uppercase;
  font-size: var(--text-mono-data);
  letter-spacing: 0.03em;
}
.anchor-total {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  gap: var(--space-2);
  color: var(--color-white);
  font-weight: 600;
  padding-top: var(--space-2);
  margin-top: var(--space-3);
  border-top: 1px solid rgba(255,255,255,0.3);
}
.anchor-total__price {
  font-family: var(--font-mono);
  font-size: var(--text-display-sm);
  flex-shrink: 0;
}

/* ============================================================
   Dobra 9 y 12: Precio + Botón
   ============================================================ */
.price-block { text-align: center; }
.price-block__from {
  font-family: var(--font-mono);
  color: var(--color-taupe);
  font-size: var(--text-body-lg);
}
.price-block__to {
  font-family: var(--font-mono);
  font-weight: 700;
  font-size: var(--text-mono-price);
  color: var(--color-dark-text);
}
.price-block__period {
  font-size: var(--text-body);
  font-weight: 500;
  opacity: 0.7;
}
.price-block__cta-row {
  margin-top: var(--space-4);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-3);
}
.price-block--repeat { margin-top: var(--space-inside-dobra); }

.cta-button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: var(--touch-target-min);
  padding: 12px 28px;
  background: var(--color-blue-cta);
  color: var(--color-white);
  font-family: var(--font-body);
  font-weight: 600;
  font-size: var(--text-body-lg);
  text-decoration: none;
  border-radius: var(--radius-control);
  border-top: 1px solid rgba(255, 255, 255, 0.25);
  border-right: 1px solid rgba(0, 0, 0, 0.18);
  border-bottom: 1px solid rgba(0, 0, 0, 0.32);
  border-left: 1px solid rgba(0, 0, 0, 0.18);
  width: 100%;
  text-align: center;
  box-shadow: 0 5px 14px rgba(40, 42, 58, 0.3);
  transition: filter 150ms ease-out, transform 150ms ease-out, box-shadow 150ms ease-out;
}
.cta-button:hover {
  filter: brightness(0.94);
  transform: translateY(-1px);
  box-shadow: 0 7px 18px rgba(40, 42, 58, 0.34);
}
.cta-button:active {
  filter: brightness(0.85);
  transform: translateY(1px);
  box-shadow: 0 2px 6px rgba(40, 42, 58, 0.2);
  border-top-color: rgba(0, 0, 0, 0.2);
  border-bottom-color: rgba(255, 255, 255, 0.12);
}
@media (prefers-reduced-motion: reduce) {
  .cta-button { transition: filter 150ms ease-out; }
  .cta-button:hover,
  .cta-button:active {
    transform: none;
  }
}
@media (min-width: 1024px) {
  .cta-button { width: auto; }
}

.guarantee-seal {
  width: 88px;
  height: 88px;
  border-radius: 50%;
  border: 2px double var(--color-blue);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  transform: rotate(-6deg) scale(1);
  font-family: var(--font-mono);
  text-transform: uppercase;
  font-size: 0.6875rem;
  font-weight: 600;
  color: var(--color-blue);
  transition: transform 400ms ease-out;
}
.guarantee-seal.is-stamped {
  animation: stamp 400ms ease-out;
}
@keyframes stamp {
  0% { transform: rotate(-6deg) scale(1.15); opacity: 0; }
  100% { transform: rotate(-6deg) scale(1); opacity: 1; }
}
@media (prefers-reduced-motion: reduce) {
  .guarantee-seal.is-stamped { animation: none; }
}

/* ============================================================
   Dobra 10: Precio de quedarse parado
   ============================================================ */
#dobra-10 .text-body-lg { margin-top: var(--space-3); color: var(--color-taupe); }

/* ============================================================
   Dobra 11: Autoridad
   ============================================================ */
.authority-grid {
  display: grid;
  gap: var(--space-inside-dobra);
}
@media (min-width: 1024px) {
  .authority-grid { grid-template-columns: 0.4fr 0.6fr; align-items: center; }
}
.authority-photo {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  aspect-ratio: 3 / 4;
  object-fit: cover;
  border-radius: var(--radius-card);
  box-shadow: 0 2px 8px rgba(40, 42, 58, 0.08);
}

/* ============================================================
   Dobra 12: FAQ
   ============================================================ */
.faq-list {
  display: flex;
  flex-direction: column;
  margin-top: var(--space-inside-dobra);
}
.faq-item {
  border-bottom: 1px solid var(--color-taupe-line);
  padding-block: var(--space-3);
}
.faq-item__question {
  font-weight: 600;
  min-height: var(--touch-target-min);
  display: flex;
  align-items: center;
}
.faq-item p { margin-top: var(--space-2); }

/* ============================================================
   Footer
   ============================================================ */
.site-footer {
  background: var(--color-dark-alt);
  color: var(--color-taupe);
  padding-block: var(--space-6);
  font-size: var(--text-body-sm);
}
.site-footer__grid {
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
}
.site-footer a { color: var(--color-white); text-decoration: underline; }