/* ==========================================================================
   Academia Vigor — Hoja de estilos principal
   Identidad editorial: negro profundo, dorado y marfil.
   Sin frameworks. Sin librerías externas.
   ========================================================================== */

:root {
  --black-deep: #080808;
  --black-secondary: #121212;
  --gold: #C9A24A;
  --gold-dark: #8D682A;
  --ivory: #F2E7C9;
  --gray: #A8A8A8;

  --border-subtle: rgba(201, 162, 74, 0.28);
  --border-faint: rgba(242, 231, 201, 0.12);

  --font-serif: Georgia, "Iowan Old Style", "Times New Roman", Times, serif;
  --font-sans: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;

  --container: 1120px;
  --container-narrow: 760px;

  --space-1: 0.5rem;
  --space-2: 1rem;
  --space-3: 1.5rem;
  --space-4: 2.5rem;
  --space-5: 4rem;
  --space-6: 6rem;

  --radius: 2px;
  --transition: 180ms ease;
}

/* ------------------------- Reset base ------------------------- */
*,
*::before,
*::after {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
}

body {
  margin: 0;
  background-color: var(--black-deep);
  color: var(--ivory);
  font-family: var(--font-sans);
  font-size: 16px;
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
}

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

a {
  color: inherit;
  text-decoration: none;
}

ul,
ol {
  margin: 0;
  padding: 0;
  list-style: none;
}

h1, h2, h3, h4 {
  font-family: var(--font-serif);
  font-weight: 400;
  line-height: 1.25;
  margin: 0 0 var(--space-2);
  color: var(--ivory);
}

p {
  margin: 0 0 var(--space-3);
}

button {
  font-family: inherit;
  cursor: pointer;
}

/* Foco visível para navegação por teclado */
a:focus-visible,
button:focus-visible,
summary:focus-visible,
input:focus-visible {
  outline: 2px solid var(--gold);
  outline-offset: 3px;
}

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

/* ------------------------- Utilidades ------------------------- */
.container {
  width: 100%;
  max-width: var(--container);
  margin: 0 auto;
  padding: 0 var(--space-3);
}

.container-narrow {
  width: 100%;
  max-width: var(--container-narrow);
  margin: 0 auto;
  padding: 0 var(--space-3);
}

.section {
  padding: var(--space-6) 0;
  scroll-margin-top: 84px;
  border-top: 1px solid var(--border-faint);
}

.section:first-of-type {
  border-top: none;
}

.section--light {
  background-color: var(--ivory);
  color: var(--black-secondary);
}

.section--light h2,
.section--light h3 {
  color: var(--black-secondary);
}

.section--muted {
  background-color: var(--black-secondary);
}

.section-head {
  max-width: 640px;
  margin: 0 0 var(--space-4);
}

.section-head--center {
  margin-left: auto;
  margin-right: auto;
  text-align: center;
}

.eyebrow {
  display: inline-block;
  font-family: var(--font-sans);
  font-size: 0.75rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--gold);
  margin-bottom: var(--space-2);
}

.section-title {
  font-size: clamp(1.6rem, 1.2rem + 1.6vw, 2.4rem);
}

.section-text {
  color: var(--gray);
  font-size: 1.05rem;
}

.section--light .section-text {
  color: #4a4a4a;
}

.rule {
  width: 56px;
  height: 1px;
  background: var(--gold);
  border: none;
  margin: var(--space-3) 0;
}

.rule--center {
  margin-left: auto;
  margin-right: auto;
}

.visually-hidden {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

.skip-link {
  position: absolute;
  left: var(--space-2);
  top: -60px;
  background: var(--gold);
  color: var(--black-deep);
  padding: 0.6rem 1rem;
  z-index: 1000;
  transition: top var(--transition);
  font-weight: 600;
}

.skip-link:focus {
  top: var(--space-2);
}

/* ------------------------- Botones ------------------------- */
.btn {
  display: inline-block;
  padding: 0.85rem 1.9rem;
  border-radius: var(--radius);
  font-size: 0.95rem;
  letter-spacing: 0.02em;
  border: 1px solid transparent;
  transition: background-color var(--transition), color var(--transition), border-color var(--transition);
}

.btn-primary {
  background-color: var(--gold);
  color: var(--black-deep);
  font-weight: 600;
}

.btn-primary:hover,
.btn-primary:focus-visible {
  background-color: var(--ivory);
}

.btn-outline {
  background-color: transparent;
  color: var(--ivory);
  border-color: var(--border-subtle);
}

.btn-outline:hover,
.btn-outline:focus-visible {
  border-color: var(--gold);
  color: var(--gold);
}

.section--light .btn-outline {
  color: var(--black-secondary);
  border-color: rgba(8, 8, 8, 0.25);
}

.btn-block {
  display: block;
  width: 100%;
  text-align: center;
}

/* ------------------------- Encabezado ------------------------- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 200;
  background-color: rgba(8, 8, 8, 0.94);
  border-bottom: 1px solid var(--border-faint);
}

.site-header .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-3);
  padding-top: var(--space-2);
  padding-bottom: var(--space-2);
  min-height: 68px;
}

.brand {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  font-family: var(--font-serif);
  font-size: 1.15rem;
  letter-spacing: 0.03em;
  color: var(--ivory);
  white-space: nowrap;
}

.brand-mark {
  width: 10px;
  height: 10px;
  border: 1px solid var(--gold);
  transform: rotate(45deg);
  flex-shrink: 0;
}

.brand strong {
  color: var(--gold);
  font-weight: 400;
}

.nav-toggle {
  display: inline-flex;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 40px;
  height: 40px;
  background: transparent;
  border: 1px solid var(--border-subtle);
  align-items: center;
}

.nav-toggle span {
  display: block;
  width: 18px;
  height: 1px;
  background-color: var(--ivory);
}

.main-nav {
  position: fixed;
  inset: 68px 0 0 0;
  background-color: var(--black-deep);
  border-top: 1px solid var(--border-faint);
  padding: var(--space-3);
  display: none;
  overflow-y: auto;
}

.main-nav.is-open {
  display: block;
}

.nav-list {
  display: flex;
  flex-direction: column;
  gap: 0;
  margin-bottom: var(--space-3);
}

.nav-list li {
  border-bottom: 1px solid var(--border-faint);
}

.nav-list a {
  display: block;
  padding: var(--space-2) 0.2rem;
  font-size: 1rem;
  color: var(--ivory);
}

.nav-list a:hover,
.nav-list a:focus-visible {
  color: var(--gold);
}

.nav-cta {
  width: 100%;
}

/* ------------------------- Hero ------------------------- */
.hero {
  padding: var(--space-5) 0 var(--space-6);
  border-top: none;
}

.hero .container {
  display: grid;
  gap: var(--space-4);
  align-items: center;
}

.hero-copy {
  max-width: 560px;
}

.hero-badge {
  display: inline-block;
  font-size: 0.72rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--gold-dark);
  background-color: rgba(201, 162, 74, 0.1);
  border: 1px solid var(--border-subtle);
  padding: 0.4rem 0.8rem;
  margin-bottom: var(--space-3);
}

.hero h1 {
  font-size: clamp(2.1rem, 1.6rem + 2.4vw, 3.4rem);
  margin-bottom: var(--space-2);
}

.hero-subtitle {
  font-size: 1.15rem;
  color: var(--ivory);
  margin-bottom: var(--space-2);
}

.hero-text {
  color: var(--gray);
  margin-bottom: var(--space-3);
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2);
}

.hero-media {
  order: -1;
}

/* ------------------------- Marco de imagen / placeholder ------------------------- */
.media-frame {
  position: relative;
  width: 100%;
  overflow: hidden;
  background-color: var(--black-secondary);
  border: 1px solid var(--border-faint);
}

.media-frame img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.media-frame--tall {
  aspect-ratio: 4 / 5;
}

.media-frame--wide {
  aspect-ratio: 16 / 10;
}

.media-frame--wider {
  aspect-ratio: 16 / 9;
}

.media-fallback {
  display: none;
  position: absolute;
  inset: 0;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  text-align: center;
  padding: var(--space-3);
  background: linear-gradient(180deg, var(--black-secondary), #0d0d0d);
  color: var(--gray);
}

.media-frame.is-placeholder .media-fallback {
  display: flex;
}

/* Oculta por completo el <img> roto (evita cualquier ícono nativo de imagen
   rota o texto alternativo asomando debajo del bloque de respaldo). */
.media-frame.is-placeholder img {
  visibility: hidden;
}

.media-fallback-mark {
  width: 34px;
  height: 34px;
  border: 1px solid var(--border-subtle);
  border-radius: 50%;
  position: relative;
}

.media-fallback-mark::before,
.media-fallback-mark::after {
  content: "";
  position: absolute;
  background-color: var(--border-subtle);
}

.media-fallback-mark::before {
  width: 1px;
  height: 14px;
  top: 10px;
  left: 16px;
}

.media-fallback-mark::after {
  width: 14px;
  height: 1px;
  top: 16px;
  left: 10px;
}

.media-fallback span {
  font-size: 0.8rem;
  letter-spacing: 0.02em;
  max-width: 240px;
}

.media-caption {
  margin-top: var(--space-2);
  font-size: 0.85rem;
  color: var(--gray);
}

.section--light .media-caption {
  color: #666;
}

/* ------------------------- Presentación / bloques de texto ------------------------- */
.presentation-grid {
  display: grid;
  gap: var(--space-4);
  align-items: start;
}

/* ------------------------- Listas de características ------------------------- */
.feature-list {
  display: grid;
  gap: var(--space-2);
}

.feature-list li {
  padding: var(--space-2) 0;
  border-bottom: 1px solid var(--border-faint);
  display: flex;
  gap: 0.8rem;
  color: var(--gray);
}

.section--light .feature-list li {
  border-bottom-color: rgba(8, 8, 8, 0.12);
  color: #444;
}

.feature-list li::before {
  content: "—";
  color: var(--gold);
  flex-shrink: 0;
}

/* ------------------------- Grid de productos ------------------------- */
.card-grid {
  display: grid;
  gap: var(--space-3);
  grid-template-columns: 1fr;
}

.product-card {
  border: 1px solid var(--border-faint);
  background-color: var(--black-secondary);
  padding: var(--space-3);
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
}

.product-card-media {
  aspect-ratio: 4 / 3;
}

.product-card h3 {
  font-size: 1.2rem;
  margin-bottom: 0.3rem;
}

.product-card p {
  color: var(--gray);
  font-size: 0.95rem;
  margin-bottom: 0;
}

.product-number {
  font-family: var(--font-serif);
  color: var(--gold-dark);
  font-size: 0.85rem;
}

/* ------------------------- Bonus ------------------------- */
.bonus-list {
  display: grid;
  gap: var(--space-3);
}

.bonus-item {
  border-left: 2px solid var(--gold);
  padding: 0.2rem 0 0.2rem var(--space-3);
}

.bonus-item h3 {
  font-size: 1.1rem;
  margin-bottom: 0.4rem;
}

.bonus-item p {
  color: var(--gray);
  margin-bottom: 0;
}

.bonus-note {
  font-size: 0.85rem;
  color: var(--gold-dark);
  display: block;
  margin-top: 0.35rem;
}

/* ------------------------- Cómo funciona el acceso ------------------------- */
.steps-list {
  display: grid;
  gap: var(--space-3);
  counter-reset: step;
}

.step-item {
  display: flex;
  gap: var(--space-3);
  align-items: flex-start;
  padding-bottom: var(--space-3);
  border-bottom: 1px solid var(--border-faint);
}

.step-item:last-child {
  border-bottom: none;
  padding-bottom: 0;
}

.step-number {
  flex-shrink: 0;
  width: 38px;
  height: 38px;
  border: 1px solid var(--border-subtle);
  color: var(--gold);
  font-family: var(--font-serif);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1rem;
}

.step-text p {
  margin: 0;
  color: var(--gray);
}

.support-line {
  margin-top: var(--space-4);
  padding: var(--space-3);
  border: 1px solid var(--border-subtle);
  background-color: rgba(201, 162, 74, 0.06);
  scroll-margin-top: 84px;
}

.support-line strong {
  color: var(--gold);
}

.support-line a {
  color: var(--ivory);
  text-decoration: underline;
  text-underline-offset: 3px;
}

/* ------------------------- Entrega real ------------------------- */
.delivery-grid {
  display: grid;
  gap: var(--space-4);
  align-items: center;
}

/* ------------------------- Para quién es / no es ------------------------- */
.fit-grid {
  display: grid;
  gap: var(--space-4);
}

.fit-card {
  padding: var(--space-3);
  border: 1px solid var(--border-faint);
}

.fit-card--yes {
  border-color: var(--border-subtle);
}

.fit-list li {
  display: flex;
  gap: 0.7rem;
  padding: 0.55rem 0;
  border-bottom: 1px solid var(--border-faint);
  color: var(--gray);
}

.fit-list li:last-child {
  border-bottom: none;
}

.fit-list li::before {
  flex-shrink: 0;
  font-family: var(--font-serif);
}

.fit-list--yes li::before {
  content: "✓";
  color: var(--gold);
}

.fit-list--no li::before {
  content: "–";
  color: var(--gray);
}

/* ------------------------- Autor / institucional ------------------------- */
.about-box {
  border: 1px solid var(--border-faint);
  padding: var(--space-4);
}

.about-fields {
  display: grid;
  gap: var(--space-3);
  margin-top: var(--space-3);
  padding-top: var(--space-3);
  border-top: 1px solid var(--border-faint);
}

.about-field dt {
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--gold-dark);
  margin-bottom: 0.2rem;
}

.about-field dd {
  margin: 0;
  color: var(--ivory);
}

.placeholder-value {
  color: var(--gold);
  border-bottom: 1px dashed var(--gold-dark);
  padding-bottom: 1px;
}

/* ------------------------- Oferta ------------------------- */
.offer-box {
  border: 1px solid var(--gold-dark);
  background-color: var(--black-secondary);
  padding: var(--space-4);
  max-width: 560px;
  margin: 0 auto;
}

.offer-box h2 {
  font-size: 1.7rem;
}

.offer-price {
  font-size: 1.9rem;
  font-family: var(--font-serif);
  color: var(--gold);
  margin: var(--space-2) 0;
}

.offer-price small {
  display: block;
  font-family: var(--font-sans);
  font-size: 0.85rem;
  color: var(--gray);
  margin-top: 0.3rem;
}

.offer-list {
  margin: var(--space-3) 0;
  display: grid;
  gap: 0.6rem;
}

.offer-list li {
  display: flex;
  gap: 0.7rem;
  color: var(--ivory);
  font-size: 0.95rem;
}

.offer-list li::before {
  content: "✓";
  color: var(--gold);
  flex-shrink: 0;
}

.offer-refund-line {
  margin-top: var(--space-3);
  padding-top: var(--space-3);
  border-top: 1px solid var(--border-faint);
  font-size: 0.9rem;
  color: var(--ivory);
}

.offer-refund-line a {
  color: var(--gold);
  text-decoration: underline;
  text-underline-offset: 3px;
}

.offer-fine {
  margin-top: var(--space-2);
  font-size: 0.85rem;
  color: var(--gray);
}

/* ------------------------- Reembolso resumen / aviso ------------------------- */
.notice-box {
  border-left: 2px solid var(--gold-dark);
  padding-left: var(--space-3);
}

/* ------------------------- FAQ ------------------------- */
.faq-list {
  display: grid;
  gap: 0;
  border-top: 1px solid var(--border-faint);
}

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

.faq-item summary {
  cursor: pointer;
  padding: var(--space-2) 0;
  font-family: var(--font-serif);
  font-size: 1.05rem;
  color: var(--ivory);
  list-style: none;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: var(--space-2);
}

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

.faq-item summary::after {
  content: "+";
  color: var(--gold);
  font-family: var(--font-sans);
  font-size: 1.3rem;
  flex-shrink: 0;
  transition: transform var(--transition);
}

.faq-item[open] summary::after {
  content: "–";
}

.faq-item p {
  color: var(--gray);
  padding-bottom: var(--space-2);
  margin: 0;
}

/* ------------------------- Pie de página ------------------------- */
.site-footer {
  background-color: var(--black-secondary);
  border-top: 1px solid var(--border-faint);
  padding: var(--space-5) 0 var(--space-3);
}

.footer-grid {
  display: grid;
  gap: var(--space-4);
  margin-bottom: var(--space-4);
}

.footer-brand p {
  color: var(--gray);
  font-size: 0.9rem;
  max-width: 320px;
}

.footer-col h4 {
  font-size: 0.8rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--gold-dark);
  font-family: var(--font-sans);
  margin-bottom: var(--space-2);
}

.footer-col ul {
  display: grid;
  gap: 0.55rem;
}

.footer-col a {
  color: var(--gray);
  font-size: 0.92rem;
}

.footer-col a:hover,
.footer-col a:focus-visible {
  color: var(--gold);
}

.footer-bottom {
  border-top: 1px solid var(--border-faint);
  padding-top: var(--space-3);
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2);
  justify-content: space-between;
  font-size: 0.82rem;
  color: var(--gray);
}

.age-note {
  color: var(--gold-dark);
  font-weight: 600;
}

/* ------------------------- Age gate ------------------------- */
html.av-age-pending #site-content {
  display: none;
}

html.av-age-pending body {
  overflow: hidden;
}

.age-gate {
  display: none;
  position: fixed;
  inset: 0;
  z-index: 999;
  background-color: var(--black-deep);
  align-items: center;
  justify-content: center;
  padding: var(--space-3);
}

html.av-age-pending .age-gate {
  display: flex;
}

.age-gate-box {
  max-width: 420px;
  width: 100%;
  border: 1px solid var(--border-subtle);
  background-color: var(--black-secondary);
  padding: var(--space-4);
  text-align: center;
}

.age-gate-mark {
  width: 12px;
  height: 12px;
  border: 1px solid var(--gold);
  transform: rotate(45deg);
  margin: 0 auto var(--space-3);
}

.age-gate-box h2 {
  font-size: 1.3rem;
  margin-bottom: var(--space-2);
}

.age-gate-box p {
  color: var(--gray);
  font-size: 0.95rem;
}

.age-gate-actions {
  display: grid;
  gap: 0.7rem;
  margin-top: var(--space-3);
}

/* ------------------------- Páginas legales ------------------------- */
.legal-page {
  padding: var(--space-6) 0;
}

.legal-page h1 {
  font-size: clamp(1.8rem, 1.4rem + 1.4vw, 2.4rem);
}

.legal-updated {
  color: var(--gray);
  font-size: 0.88rem;
  margin-bottom: var(--space-4);
}

.legal-body h2 {
  font-size: 1.3rem;
  margin-top: var(--space-4);
}

.legal-body h3 {
  font-size: 1.05rem;
  margin-top: var(--space-3);
  color: var(--gold);
}

.legal-body p,
.legal-body li {
  color: var(--gray);
}

.legal-body ul,
.legal-body ol {
  display: grid;
  gap: 0.5rem;
  margin: var(--space-2) 0 var(--space-3);
  padding-left: 1.2rem;
}

.legal-body ul li {
  list-style: disc;
}

.legal-body ol li {
  list-style: decimal;
}

.legal-body a {
  color: var(--gold);
  text-decoration: underline;
  text-underline-offset: 3px;
}

.back-link {
  display: inline-block;
  margin-bottom: var(--space-4);
  color: var(--gold);
  font-size: 0.9rem;
}

.editable-field {
  background-color: var(--black-secondary);
  border: 1px dashed var(--border-subtle);
  padding: 0.15rem 0.5rem;
  color: var(--gold);
}

/* ==========================================================================
   Responsivo
   ========================================================================== */

@media (min-width: 640px) {
  .card-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .fit-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .age-gate-actions {
    grid-template-columns: 1fr 1fr;
  }
}

@media (min-width: 860px) {
  .nav-toggle {
    display: none;
  }

  .main-nav {
    position: static;
    inset: auto;
    display: flex !important;
    align-items: center;
    background: transparent;
    border-top: none;
    padding: 0;
    overflow: visible;
    gap: var(--space-4);
    width: auto;
  }

  .nav-list {
    flex-direction: row;
    gap: var(--space-4);
    margin-bottom: 0;
  }

  .nav-list li {
    border-bottom: none;
  }

  .nav-list a {
    padding: 0.3rem 0;
    font-size: 0.92rem;
    position: relative;
  }

  .nav-cta {
    width: auto;
    white-space: nowrap;
  }

  .hero .container {
    grid-template-columns: 1fr 1fr;
  }

  .hero-media {
    order: 0;
  }

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

  .card-grid {
    grid-template-columns: repeat(3, 1fr);
  }

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

  .steps-list {
    grid-template-columns: 1fr;
  }

  .footer-grid {
    grid-template-columns: 1.4fr 1fr 1fr 1fr;
  }
}

@media (min-width: 1024px) {
  .hero-copy {
    max-width: 620px;
  }
}

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

  * {
    transition: none !important;
  }
}