/* ==========================================================================
   COMPONENTS — botones, tarjetas, glass panels, formularios, FAQ,
   placeholders de fotografía, badges, breadcrumbs, divisores.
   ========================================================================== */

/* Botones */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2xs);
  padding: 0.85rem 1.6rem;
  border-radius: var(--radius-pill);
  font-size: 0.95rem;
  font-weight: 600;
  letter-spacing: 0.01em;
  transition: transform var(--dur-fast) var(--ease-organic), background var(--dur-fast) var(--ease-organic), box-shadow var(--dur-fast) var(--ease-organic), color var(--dur-fast) var(--ease-organic);
  white-space: nowrap;
}

.btn--small {
  padding: 0.55rem 1.15rem;
  font-size: 0.85rem;
}

.btn--primary {
  background: var(--color-navy-deep);
  color: var(--color-ivory);
  box-shadow: var(--shadow-soft);
}

.btn--primary:hover {
  background: var(--color-teal-deep);
  transform: translateY(-2px);
}

.btn--outline {
  border: 1.5px solid var(--color-navy-deep);
  color: var(--color-navy-deep);
}

.btn--outline:hover {
  background: var(--color-navy-deep);
  color: var(--color-ivory);
}

.btn--ghost {
  color: var(--color-navy-deep);
  border: 1.5px solid var(--color-border-soft);
}

.btn--ghost:hover {
  border-color: var(--color-teal-deep);
  color: var(--color-teal-deep);
}

.btn--gold {
  background: var(--color-gold-soft);
  color: var(--color-navy-deep);
}

.btn--gold:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-lift);
}

/* Variante de botón ghost legible sobre fondos oscuros (video, CTA final) */
.btn--ghost-light {
  color: var(--color-ivory);
  border: 1.5px solid rgba(247, 244, 238, 0.45);
}

.btn--ghost-light:hover {
  border-color: var(--color-ivory);
  background: rgba(247, 244, 238, 0.12);
}

.btn--block {
  width: 100%;
}

/* Sección / cabecera de sección */
.section {
  padding-block: var(--space-2xl);
}

.section--tight {
  padding-block: var(--space-xl);
}

.section--alt {
  background: var(--color-surface-alt);
}

.section--mist {
  background: var(--color-mist);
}

.section--deep {
  background: var(--color-navy-deep);
  color: rgba(247, 244, 238, 0.9);
}

.section--deep h2,
.section--deep h3 {
  color: var(--color-ivory);
}

.section-head {
  max-width: 720px;
  margin-bottom: var(--space-xl);
}

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

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2xs);
  font-size: 0.78rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--color-teal-deep);
  margin-bottom: var(--space-sm);
}

.eyebrow::before {
  content: '';
  width: 22px;
  height: 1.5px;
  background: var(--color-gold-soft);
}

/* Grid utilidades de sección */
.grid {
  display: grid;
  gap: var(--space-lg);
}

.grid--2 { grid-template-columns: repeat(2, 1fr); }
.grid--3 { grid-template-columns: repeat(3, 1fr); }
.grid--4 { grid-template-columns: repeat(4, 1fr); }

@media (max-width: 1023px) {
  .grid--3, .grid--4 { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 640px) {
  .grid--2, .grid--3, .grid--4 { grid-template-columns: 1fr; }
}

/* Tarjetas */
.card {
  background: #fff;
  border-radius: var(--radius-lg);
  padding: var(--space-lg);
  box-shadow: var(--shadow-soft);
  border: 1px solid var(--color-border-soft);
  transition: transform var(--dur-medium) var(--ease-organic), box-shadow var(--dur-medium) var(--ease-organic);
}

.card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lift);
}

.card__icon {
  width: 64px;
  height: 64px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
  background: linear-gradient(145deg, rgba(255, 255, 255, 0.96), var(--color-mist));
  border: 1px solid rgba(22, 124, 128, 0.14);
  box-shadow: 0 10px 26px rgba(15, 30, 42, 0.08);
  color: var(--color-teal-deep);
  margin-bottom: var(--space-md);
}

.card__icon img {
  display: block;
  width: 42px;
  height: 42px;
}

.card h3 {
  margin-bottom: var(--space-2xs);
}

.card p {
  color: var(--color-ink);
  font-size: 0.98rem;
}

.card__link {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  margin-top: var(--space-sm);
  color: var(--color-teal-deep);
  font-weight: 600;
  font-size: 0.92rem;
}

/* Glass panel */
.glass-panel {
  background: var(--color-glass-bg);
  backdrop-filter: blur(var(--blur-glass));
  -webkit-backdrop-filter: blur(var(--blur-glass));
  border: 1px solid var(--color-glass-border);
  box-shadow: 0 10px 30px var(--color-glass-shadow);
  border-radius: var(--radius-lg);
}

/* Placeholder de fotografía */
.photo-placeholder {
  position: relative;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: var(--space-xs);
  text-align: center;
  border: 1.5px dashed var(--color-teal-soft);
  border-radius: var(--radius-lg);
  background: linear-gradient(160deg, var(--color-water-light), var(--color-mist));
  color: var(--color-teal-deep);
  padding: var(--space-lg);
  aspect-ratio: var(--ph-ratio, 4 / 5);
  width: 100%;
}

.photo-placeholder svg {
  width: 40px;
  height: 40px;
  opacity: 0.7;
}

.photo-placeholder__label {
  font-size: 0.82rem;
  font-weight: 600;
  color: var(--color-navy-deep);
  max-width: 26ch;
}

.photo-placeholder__note {
  font-size: 0.74rem;
  color: var(--color-teal-deep);
  max-width: 28ch;
}

/* Badge de pendiente */
.pending-flag {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: #7A5A22;
  background: rgba(200, 168, 106, 0.18);
  border: 1px solid rgba(200, 168, 106, 0.4);
  padding: 4px 10px;
  border-radius: var(--radius-pill);
  margin-bottom: var(--space-2xs);
}

/* Divisor ondulado */
.wave-divider {
  display: block;
  width: 100%;
  height: 60px;
  line-height: 0;
}

.wave-divider img {
  width: 100%;
  height: 100%;
}

/* Breadcrumb */
.breadcrumb {
  padding-block: var(--space-md);
  font-size: 0.85rem;
  color: var(--color-teal-deep);
}

.breadcrumb ol {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
}

.breadcrumb li:not(:last-child)::after {
  content: '/';
  margin-left: 6px;
  color: var(--color-border-soft);
}

.breadcrumb a:hover {
  text-decoration: underline;
}

/* Formularios */
.form-field {
  display: grid;
  gap: 6px;
  margin-bottom: var(--space-md);
}

.form-field label {
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--color-navy-deep);
}

.form-field input,
.form-field textarea,
.form-field select {
  border: 1.5px solid var(--color-border-soft);
  border-radius: var(--radius-sm);
  padding: 0.85rem 1rem;
  background: #fff;
  font-size: 0.98rem;
  transition: border-color var(--dur-fast) var(--ease-organic);
}

.form-field input:focus,
.form-field textarea:focus,
.form-field select:focus {
  border-color: var(--color-teal-deep);
}

.form-field textarea {
  min-height: 140px;
  resize: vertical;
}

.form-field--checkbox {
  display: flex;
  align-items: flex-start;
  gap: 10px;
}

.form-field--checkbox input {
  margin-top: 4px;
}

.form-field--checkbox label {
  font-weight: 400;
  font-size: 0.85rem;
  color: var(--color-ink);
}

.form-honeypot {
  position: absolute;
  left: -9999px;
  width: 1px;
  height: 1px;
  overflow: hidden;
}

.form-note {
  font-size: 0.8rem;
  color: var(--color-teal-deep);
  margin-top: var(--space-2xs);
}

.form-status {
  margin-top: var(--space-md);
  padding: var(--space-sm) var(--space-md);
  border-radius: var(--radius-sm);
  font-size: 0.92rem;
  display: none;
}

.form-status.is-success {
  display: block;
  background: rgba(79, 122, 107, 0.12);
  color: var(--color-success);
  border: 1px solid rgba(79, 122, 107, 0.3);
}

.form-status.is-error {
  display: block;
  background: rgba(169, 72, 58, 0.1);
  color: var(--color-error);
  border: 1px solid rgba(169, 72, 58, 0.3);
}

/* FAQ */
.faq-item {
  border-bottom: 1px solid var(--color-border-soft);
}

.faq-item__trigger {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-md);
  padding-block: var(--space-md);
  text-align: left;
  font-family: var(--font-display);
  font-size: 1.1rem;
  color: var(--color-navy-deep);
}

.faq-item__icon {
  flex-shrink: 0;
  width: 24px;
  height: 24px;
  position: relative;
}

.faq-item__icon::before,
.faq-item__icon::after {
  content: '';
  position: absolute;
  background: var(--color-teal-deep);
  top: 50%;
  left: 50%;
  transition: transform var(--dur-fast) var(--ease-organic);
}

.faq-item__icon::before {
  width: 14px;
  height: 2px;
  transform: translate(-50%, -50%);
}

.faq-item__icon::after {
  width: 2px;
  height: 14px;
  transform: translate(-50%, -50%);
}

.faq-item[data-open="true"] .faq-item__icon::after {
  transform: translate(-50%, -50%) rotate(90deg);
  opacity: 0;
}

.faq-item__panel {
  overflow: hidden;
  max-height: 0;
  transition: max-height var(--dur-medium) var(--ease-organic);
}

.faq-item__panel p {
  padding-bottom: var(--space-md);
  color: var(--color-ink);
}

/* Testimonio */
.testimonial {
  padding: var(--space-lg);
  border-radius: var(--radius-lg);
  background: var(--color-surface-alt);
  border: 1px solid var(--color-border-soft);
}

.testimonial blockquote {
  font-family: var(--font-display);
  font-size: 1.15rem;
  color: var(--color-navy-deep);
  margin-bottom: var(--space-sm);
}

.testimonial cite {
  font-style: normal;
  font-size: 0.85rem;
  color: var(--color-teal-deep);
}

/* Panel de captación (guía / lista de espera) */
.capture-panel {
  padding: var(--space-xl);
  border-radius: var(--radius-lg);
}

/* Precio / estado comercial */
.status-tag {
  display: flex;
  width: fit-content;
  align-items: center;
  gap: 8px;
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--color-teal-deep);
  background: var(--color-water-light);
  padding: 6px 14px;
  border-radius: var(--radius-pill);
  margin-bottom: var(--space-sm);
}

/* Hero (reutilizable en varias páginas, con variantes en pages.css) */
.hero {
  position: relative;
  padding-top: calc(var(--header-height) + var(--space-2xl));
  padding-bottom: var(--space-xl);
  overflow: hidden;
  background: var(--color-surface);
}

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

.hero__bg svg {
  width: 100%;
  height: 100%;
}

.hero__content {
  position: relative;
  z-index: 1;
  max-width: 760px;
}

.hero__content .lead {
  margin-top: var(--space-md);
}

.hero__content .cluster {
  margin-top: var(--space-lg);
}

.hero__glass {
  margin-top: var(--space-2xl);
  padding: var(--space-lg);
  max-width: 480px;
}

.hero__glass-kicker {
  font-size: 0.75rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--color-teal-deep);
  margin-bottom: var(--space-2xs);
}

.hero__glass-text {
  color: var(--color-navy-deep);
  max-width: none;
}

.hero .wave-divider {
  position: relative;
  z-index: 1;
  margin-top: var(--space-2xl);
}

/* Hero con vídeo de fondo a pantalla completa (inicio, método, libro).
   Especificidad reforzada (.hero.hero--video) para ganar siempre a la
   altura por defecto de .hero definida en pages.css. */
.hero.hero--video {
  display: flex;
  align-items: center;
  min-height: 100vh;
  background: var(--color-navy-deep);
  color: var(--color-ivory);
}

.hero.hero--video.hero--compact {
  min-height: 78vh;
}

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

.hero__video {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.hero__overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, rgba(15, 30, 42, 0.6) 0%, rgba(15, 30, 42, 0.28) 45%, rgba(15, 30, 42, 0.7) 100%);
}

.hero--video .hero__content {
  padding-block: var(--space-xl) 0;
}

.hero--video .eyebrow {
  color: var(--color-aqua-soft);
}

.hero--video h1,
.hero--video .lead {
  color: var(--color-ivory);
}

.hero--video .breadcrumb {
  color: rgba(247, 244, 238, 0.7);
}

.hero--video .breadcrumb a:hover {
  color: var(--color-ivory);
}

.hero--video .breadcrumb li:not(:last-child)::after {
  color: rgba(247, 244, 238, 0.35);
}

.hero--video .glass-panel {
  background: rgba(255, 255, 255, 0.14);
  border-color: rgba(255, 255, 255, 0.28);
}

.hero--video .hero__glass-kicker,
.hero--video .hero__glass-text {
  color: var(--color-ivory);
}

.hero__brand-badge {
  display: flex;
  width: fit-content;
  padding: var(--space-sm) var(--space-md);
  margin-bottom: var(--space-lg);
}

.hero__brand-badge img {
  height: 34px;
  width: auto;
}

@media (max-width: 640px) {
  .hero.hero--video {
    min-height: 92vh;
  }
  .hero.hero--video.hero--compact {
    min-height: 64vh;
  }
}

/* Layout media + texto a dos columnas, usado en varias secciones editoriales */
.about-intro {
  align-items: center;
  gap: var(--space-2xl);
}

@media (max-width: 900px) {
  .about-intro.grid--2 {
    grid-template-columns: 1fr;
  }
}

/* Banda de CTA final */
.cta-final {
  position: relative;
}

/* Slider ligero (scroll-snap nativo) */
.slider__track {
  display: flex;
  gap: var(--space-lg);
  overflow-x: auto;
  scroll-snap-type: x mandatory;
  scrollbar-width: none;
  padding-bottom: var(--space-2xs);
}

.slider__track::-webkit-scrollbar {
  display: none;
}

.slider__slide {
  flex: 0 0 min(360px, 85vw);
  scroll-snap-align: start;
}

/* Tabla de referencias científicas */
.reference-list {
  display: grid;
  gap: var(--space-md);
}

.reference-item {
  padding: var(--space-md);
  border-radius: var(--radius-md);
  background: var(--color-surface-alt);
  border-left: 3px solid var(--color-gold-soft);
}