/* ==========================================================================
   Longevidad y Salud 360 — Pages
   Page-specific layout and composition styles.
   Only use tokens from design-tokens.css. No hex codes.
   ========================================================================== */

/* ==========================================================================
   HOME — index.html
   ========================================================================== */

/* --------------------------------------------------------------------------
   Hero section
   -------------------------------------------------------------------------- */
.hero {
  display: grid;
  grid-template-columns: 3fr 2fr;
  gap: var(--space-9);
  align-items: center;
}

.hero__content {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
}

.hero__heading {
  font-family: var(--font-serif);
  font-size: var(--fs-display);
  font-weight: 400;
  line-height: 1.04;
  letter-spacing: -0.02em;
  color: var(--color-ink);
  margin: 0 0 var(--space-5);
}

/* The italic line in the H1 uses the global `em` rule from design-tokens:
   color: var(--color-forest); font-style: italic; — intentional. */

.hero__subtitle {
  font-family: var(--font-sans);
  font-size: 17px;
  font-weight: 400;
  color: var(--color-ink);
  line-height: 1.5;
  max-width: 600px;
  margin: 0 0 var(--space-4);
}

@media (max-width: 768px) {
  .hero__subtitle { font-size: 16px; }
}

.hero__lead {
  font-size: var(--fs-body-lg);
  color: var(--color-muted);
  font-weight: 300;
  line-height: 1.65;
  margin: 0 0 var(--space-6);
  max-width: 42ch;
}

.hero__actions {
  display: flex;
  gap: var(--space-4);
  flex-wrap: wrap;
  align-items: center;
}

/* --------------------------------------------------------------------------
   "¿Qué es la medicina de longevidad?" (home)
   -------------------------------------------------------------------------- */
.qes { align-items: center; }

.qes__image img {
  border-radius: var(--radius-md);
}

/* Hero side column: stacked cards used as the lateral panel in service
   heroes that don't have KPI metrics (see rejuvenecimiento-composicion-corporal.html) */
.hero__side-cards {
  display: flex;
  flex-direction: column;
  gap: var(--space-4);
}

/* --------------------------------------------------------------------------
   Hero responsive
   -------------------------------------------------------------------------- */
@media (max-width: 900px) {
  .hero {
    grid-template-columns: 1fr;
    gap: var(--space-7);
    padding: var(--space-8) 0;
  }

  .hero__lead { max-width: none; }
}

@media (max-width: 480px) {
  .hero { padding: var(--space-7) 0; }
  .hero__actions { gap: var(--space-3); }
}

/* --------------------------------------------------------------------------
   Informe responsive
   -------------------------------------------------------------------------- */
@media (max-width: 480px) {

}

/* --------------------------------------------------------------------------
   Manifesto responsive
   -------------------------------------------------------------------------- */
@media (max-width: 768px) {
  .manifesto .container {
    grid-template-columns: 1fr;
    gap: var(--space-5);
  }

  .manifesto__side { padding-top: 0; }
}

/* ==========================================================================
   PÁGINAS PILAR — medicina-longevidad.html, como-trabajamos.html, quienes-somos.html
   ========================================================================== */

/* --------------------------------------------------------------------------
   Timeline vertical (como-trabajamos: recorrido del paciente)
   -------------------------------------------------------------------------- */
.timeline {
  position: relative;
  max-width: 68ch;
}

.timeline::before {
  content: "";
  position: absolute;
  left: 5px;
  top: 6px;
  bottom: 6px;
  width: var(--line-thin);
  background: var(--color-line);
}

.timeline__item {
  position: relative;
  padding-left: var(--space-7);
  margin-bottom: var(--space-6);
}

.timeline__item:last-child { margin-bottom: 0; }

.timeline__item::before {
  content: "";
  position: absolute;
  left: 0;
  top: 8px;
  width: 11px;
  height: 11px;
  border-radius: 50%;
  background: var(--color-ivory);
  border: var(--line-thin) solid var(--color-forest);
}

.timeline__item h3 {
  font-size: var(--fs-subsection);
  margin: 0 0 var(--space-2);
}

.timeline__item p {
  font-size: var(--fs-body);
  color: var(--color-muted);
  font-weight: 300;
  margin: 0;
}

/* --------------------------------------------------------------------------
   Founder letter (quienes-somos)
   -------------------------------------------------------------------------- */
.founder {
  max-width: 68ch;
  margin: 0 auto;
}

.founder__portrait {
  text-align: center;
  margin-bottom: var(--space-7);
}

.founder__portrait img {
  width: 200px;
  aspect-ratio: 4 / 5;
  object-fit: cover;
  border-radius: var(--radius-md);
  margin: 0 auto var(--space-4);
}

.founder__name {
  font-size: var(--fs-subsection);
  margin-bottom: var(--space-1);
}

.founder__role {
  font-size: var(--fs-small);
  color: var(--color-muted);
  margin: 0;
}

.founder__block {
  border-top: var(--line-thin) solid var(--color-line);
  padding-top: var(--space-6);
  margin-top: var(--space-6);
}

.founder__block:first-of-type {
  border-top: none;
  padding-top: 0;
  margin-top: 0;
}

.founder__block p {
  font-size: var(--fs-body);
  color: var(--color-muted);
  font-weight: 300;
  line-height: 1.75;
}

.founder__block em { color: var(--color-forest); }

.founder__signature {
  margin-top: var(--space-6);
  padding-top: var(--space-5);
  border-top: var(--line-thin) solid var(--color-line);
  font-family: var(--font-serif);
  font-style: italic;
  color: var(--color-muted);
  text-align: right;
}

@media (max-width: 768px) {
  .timeline__item { padding-left: var(--space-6); }
}

/* ==========================================================================
   SERVICIOS — plantilla común
   ========================================================================== */

/* --------------------------------------------------------------------------
   KPI panel (lectura compacta de métricas, ej. hero de Método 360)
   -------------------------------------------------------------------------- */
.kpi-panel {
  background: var(--color-cream);
  border: var(--line-thin) solid var(--color-line);
  border-radius: var(--radius-md);
  padding: var(--space-6);
}

.kpi-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: var(--space-4);
}

.kpi-item {
  padding: var(--space-4);
  border: var(--line-thin) solid var(--color-line-soft);
  border-radius: var(--radius-sm);
  background: var(--color-ivory);
}

.kpi-item__label {
  display: block;
  font-size: var(--fs-micro);
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--color-muted);
  margin-bottom: var(--space-2);
}

.kpi-item__value {
  font-family: var(--font-serif);
  font-size: var(--fs-subsection);
  color: var(--color-forest);
}

.kpi-panel__note {
  display: block;
  font-size: var(--fs-micro);
  color: var(--color-muted);
  margin-top: var(--space-5);
}

@media (max-width: 480px) {
  .kpi-grid { grid-template-columns: 1fr; }
}

/* ==========================================================================
   BLOG — listado y plantilla de artículo
   ========================================================================== */

/* --------------------------------------------------------------------------
   Post hero (cabecera del artículo)
   -------------------------------------------------------------------------- */
.post-hero {
  border: var(--line-thin) solid var(--color-line);
  border-radius: var(--radius-md);
  background: var(--color-cream);
  padding: var(--space-7) var(--space-6);
}

.post-hero__title {
  font-family: var(--font-serif);
  font-size: var(--fs-page-title);
  font-weight: 400;
  line-height: 1.08;
  letter-spacing: -0.015em;
  color: var(--color-ink);
  margin: 0;
}

.post-hero__meta {
  display: flex;
  gap: var(--space-4);
  flex-wrap: wrap;
  align-items: center;
  font-size: var(--fs-small);
  color: var(--color-muted);
  margin: var(--space-4) 0 var(--space-5);
}

/* --------------------------------------------------------------------------
   Info box (nota / resumen dentro del cuerpo del artículo, alineado a la izq.)
   -------------------------------------------------------------------------- */
.info-box {
  border-left: 2px solid var(--color-forest);
  background: var(--color-cream);
  border-radius: 0 var(--radius-md) var(--radius-md) 0;
  padding: var(--space-5) var(--space-6);
  margin: var(--space-6) 0;
}

.info-box p { margin: 0 0 var(--space-2); }
.info-box p:last-child { margin-bottom: 0; }
.info-box .note { font-size: var(--fs-small); color: var(--color-muted); }

.info-box__actions {
  display: flex;
  gap: var(--space-4);
  flex-wrap: wrap;
  margin-top: var(--space-4);
}

/* --------------------------------------------------------------------------
   Índice del artículo (TOC)
   -------------------------------------------------------------------------- */
.toc {
  border: var(--line-thin) solid var(--color-line);
  border-radius: var(--radius-md);
  padding: var(--space-5) var(--space-6);
  background: var(--color-ivory);
}

.toc__title {
  font-size: var(--fs-eyebrow);
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--color-bronze);
  margin-bottom: var(--space-3);
  display: block;
}

.toc a {
  display: block;
  padding: var(--space-2) 0;
  font-size: var(--fs-small);
  color: var(--color-muted);
}

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

/* --------------------------------------------------------------------------
   Tabla de datos
   -------------------------------------------------------------------------- */
.table-wrap {
  overflow: auto;
  border: var(--line-thin) solid var(--color-line);
  border-radius: var(--radius-md);
}

table.data-table {
  width: 100%;
  border-collapse: collapse;
  font-size: var(--fs-body);
}

table.data-table th,
table.data-table td {
  padding: var(--space-4) var(--space-5);
  border-bottom: var(--line-thin) solid var(--color-line-soft);
  text-align: left;
  vertical-align: top;
}

table.data-table thead th {
  background: var(--color-cream);
  font-family: var(--font-sans);
  font-weight: 500;
}

table.data-table tr:last-child td { border-bottom: none; }

/* --------------------------------------------------------------------------
   Cita editorial dentro del cuerpo del artículo (pull quote)
   -------------------------------------------------------------------------- */
.pull-quote {
  border-left: 2px solid var(--color-forest);
  padding: var(--space-4) var(--space-6);
  font-family: var(--font-serif);
  font-style: italic;
  font-size: var(--fs-quote);
  line-height: 1.3;
  color: var(--color-ink);
  margin: var(--space-6) 0;
}

/* --------------------------------------------------------------------------
   Lista de enlaces (artículos relacionados)
   -------------------------------------------------------------------------- */
.link-list {
  list-style: none;
  padding: 0;
  margin: var(--space-4) 0 0;
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
}

.link-list a {
  font-size: var(--fs-body);
  color: var(--color-forest);
  border-bottom: var(--line-thin) solid var(--color-line-soft);
  padding-bottom: var(--space-2);
  display: inline-block;
}

/* --------------------------------------------------------------------------
   Blog index — hero, tarjetas de post y sidebar
   -------------------------------------------------------------------------- */
.posts-grid {
  display: grid;
  gap: var(--space-5);
}

.post-card {
  display: block;
}

.post-card .card-title { margin-bottom: var(--space-2); }

.blog-layout {
  display: grid;
  grid-template-columns: 2fr 1fr;
  gap: var(--space-8);
  align-items: start;
}

.blog-aside {
  display: grid;
  gap: var(--space-5);
}

.aside-card h3 { font-size: var(--fs-subsection); margin-bottom: var(--space-3); }

.aside-list {
  list-style: none;
  padding: 0;
  margin: 0;
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
}

.aside-list a,
.aside-list li {
  font-size: var(--fs-small);
  color: var(--color-muted);
}

.aside-list a { color: var(--color-ink); }

@media (max-width: 900px) {
  .blog-layout { grid-template-columns: 1fr; }
}

/* --------------------------------------------------------------------------
   WhatsApp inline (enlace en línea, distinto del FAB fijo)
   -------------------------------------------------------------------------- */
.wa-inline {
  display: inline-flex;
  align-items: center;
  gap: var(--space-3);
  color: var(--color-forest);
}

.wa-inline svg {
  width: 20px;
  height: 20px;
  fill: var(--color-forest);
  flex-shrink: 0;
}

.wa-inline span { font-size: var(--fs-small); }

/* ==========================================================================
   TEST DE EDAD BIOLÓGICA — index, p1–p5, gracias
   ========================================================================== */

/* --------------------------------------------------------------------------
   Header minimalista (solo logo, sin navegación — reduce distracción en el funnel)
   -------------------------------------------------------------------------- */

/* --------------------------------------------------------------------------
   Barra de progreso
   -------------------------------------------------------------------------- */

/* --------------------------------------------------------------------------
   Pregunta (fieldset)
   -------------------------------------------------------------------------- */

/* --------------------------------------------------------------------------
   Acciones del paso (volver / continuar)
   -------------------------------------------------------------------------- */

/* --------------------------------------------------------------------------
   Consentimiento (checkbox + texto legal)
   -------------------------------------------------------------------------- */
.consent-box {
  display: flex;
  align-items: flex-start;
  gap: var(--space-3);
  cursor: pointer;
}

.consent-box input[type="checkbox"] {
  appearance: none;
  width: 18px;
  height: 18px;
  min-width: 18px;
  margin-top: 3px;
  border: var(--line-thin) solid var(--color-muted);
  border-radius: var(--radius-sm);
  position: relative;
  cursor: pointer;
}

.consent-box input[type="checkbox"]:checked {
  background: var(--color-forest);
  border-color: var(--color-forest);
}

.consent-box input[type="checkbox"]:checked::after {
  content: "";
  position: absolute;
  left: 5px;
  top: 1px;
  width: 5px;
  height: 9px;
  border: solid var(--color-ivory);
  border-width: 0 2px 2px 0;
  transform: rotate(45deg);
}

.consent-box span {
  font-size: var(--fs-small);
  color: var(--color-muted);
  line-height: 1.6;
}

.consent-alert {
  margin: var(--space-3) 0 0;
  color: var(--color-forest);
  font-weight: 500;
  font-size: var(--fs-small);
}

@media (max-width: 600px) {
  }

/* ==========================================================================
   CONTACTO — contacto.html
   ========================================================================== */
.contact-grid {
  display: grid;
  grid-template-columns: 3fr 2fr;
  gap: var(--space-6);
  align-items: start;
}

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

/* ==========================================================================
   LEGALES — legal/*.html (cambio mínimo: solo tipografía y paleta)
   ========================================================================== */
.legal-content {
  max-width: 760px;
  margin: 0 auto;
}

.legal-content h2 {
  font-size: var(--fs-subsection);
  margin-top: var(--space-8);
}

.legal-content h2:first-of-type { margin-top: 0; }

.legal-content ul {
  padding-left: var(--space-6);
  color: var(--color-muted);
}

.legal-content li { margin-bottom: var(--space-2); }

.legal-content .meta {
  font-size: var(--fs-small);
  color: var(--color-muted);
}

.legal-content code {
  font-size: 0.9em;
  background: var(--color-cream);
  padding: 2px 5px;
  border-radius: var(--radius-sm);
}

.legal-content .table-wrap { margin: var(--space-5) 0; }

.legal-footer {
  border-top: var(--line-thin) solid var(--color-line);
  padding: var(--space-5) 0;
  text-align: center;
}

.legal-footer small {
  font-size: var(--fs-micro);
  color: var(--color-muted);
  letter-spacing: 0.04em;
}

/* ==========================================================================
   CABECERA + HERO — rediseño acotado. No afecta al resto de la página.
   Paleta del encargo: verde #173F35 · beige #F1ECDF · crema #F9F6EF
                       dorado #A78D5E
   ========================================================================== */
.ls-header,
.ls-hero {
  --ls-green:      #173F35;
  --ls-green-soft: #4A7B69;
  --ls-beige:      #F1ECDF;
  --ls-cream:      #F9F6EF;
  --ls-gold:       #A78D5E;
  --ls-muted:      #6B6F66;
  --ls-hair:       rgba(23, 63, 53, 0.14);
}

/* --------------------------------------------------------------- CABECERA */
.ls-header {
  background: var(--ls-cream);
  border-bottom: 1px solid var(--ls-hair);
  position: sticky;
  top: 0;
  z-index: 40;
}

.ls-header .container {
  position: relative;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-6);
  min-height: 82px;
  padding-top: var(--space-3);
  padding-bottom: var(--space-3);
}

.ls-header .site-logo { text-decoration: none; }

.ls-header .logo-text {
  font-family: var(--font-serif);
  font-size: 21px;
  font-weight: 400;
  letter-spacing: 0.01em;
  color: var(--ls-green);
  white-space: nowrap;
}

.ls-header .logo-sep { color: var(--ls-gold); padding: 0 0.12em; }

.ls-header .site-nav {
  display: flex;
  align-items: center;
  gap: var(--space-7);
}

.ls-header .site-nav__links {
  display: flex;
  align-items: center;
  gap: var(--space-6);
  margin: 0;
  padding: 0;
}

.ls-header .site-nav__links li a {
  font-family: var(--font-sans);
  font-size: 14px;
  font-weight: 400;
  letter-spacing: 0.015em;
  color: var(--ls-green);
  text-decoration: none;
  opacity: 0.82;
  padding-bottom: 3px;
  border-bottom: 1px solid transparent;
  transition: opacity var(--transition), border-color var(--transition);
}

.ls-header .site-nav__links li a:hover {
  opacity: 1;
  color: var(--ls-green);
  border-bottom-color: var(--ls-gold);
}

.ls-header .nav-cta {
  font-family: var(--font-sans);
  font-size: 13px;
  font-weight: 500;
  letter-spacing: 0.04em;
  color: var(--ls-green);
  background: transparent;
  border: 1px solid var(--ls-green);
  border-radius: 3px;
  padding: 10px 20px;
  text-decoration: none;
  white-space: nowrap;
  transition: background var(--transition), color var(--transition);
}

.ls-header .nav-cta:hover {
  background: var(--ls-green);
  color: var(--ls-cream);
}

.ls-header .burger span { background: var(--ls-green); }

/* ------------------------------------------------------------------- HERO */
.ls-hero {
  position: relative;
  background: var(--ls-beige);
  padding: clamp(48px, 7vw, 96px) 0 0;
  overflow: hidden;
}

.ls-hero__grid {
  display: grid;
  grid-template-columns: minmax(0, 1.06fr) minmax(0, 0.94fr);
  gap: clamp(32px, 5vw, 72px);
  align-items: center;
  padding-bottom: clamp(48px, 6vw, 88px);
}

.ls-hero__content {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  max-width: 40rem;
}

.ls-hero__eyebrow {
  font-family: var(--font-sans);
  font-size: 11px;
  font-weight: 500;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--ls-gold);
  margin-bottom: var(--space-5);
}

/* Tamaño ajustado a un titular largo (85 caracteres): prioriza el equilibrio
   de la composición sobre el impacto de un display grande. */
.ls-hero__heading {
  font-family: var(--font-serif);
  font-size: clamp(31px, 3.5vw, 52px);
  font-weight: 400;
  line-height: 1.11;
  letter-spacing: -0.018em;
  color: var(--ls-green);
  margin: 0 0 var(--space-5);
  text-wrap: balance;
}

.ls-hero__heading em {
  font-style: italic;
  font-weight: 400;
  color: var(--ls-green-soft);
}

.ls-hero__slogan {
  position: relative;
  font-family: var(--font-serif);
  font-size: clamp(17px, 1.5vw, 20px);
  font-weight: 400;
  line-height: 1.45;
  color: var(--ls-green);
  margin: 0 0 var(--space-5);
  padding-left: var(--space-4);
}

.ls-hero__slogan::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.28em;
  bottom: 0.28em;
  width: 2px;
  background: var(--ls-gold);
  border-radius: 1px;
}

.ls-hero__lead {
  font-family: var(--font-sans);
  font-size: 16.5px;
  font-weight: 300;
  line-height: 1.68;
  color: var(--ls-muted);
  margin: 0 0 var(--space-6);
  max-width: 44ch;
}

.ls-hero__actions {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: var(--space-4);
}

.ls-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-sans);
  font-size: 14px;
  font-weight: 500;
  letter-spacing: 0.02em;
  text-decoration: none;
  padding: 14px 26px;
  border-radius: 3px;
  border: 1px solid var(--ls-green);
  transition: background var(--transition), color var(--transition),
              border-color var(--transition);
}

.ls-btn--solid {
  background: var(--ls-green);
  color: var(--ls-cream);
}

.ls-btn--solid:hover {
  background: #10312A;
  border-color: #10312A;
}

.ls-btn--outline {
  background: transparent;
  color: var(--ls-green);
}

.ls-btn--outline:hover {
  background: rgba(23, 63, 53, 0.07);
}

.ls-hero__link {
  font-family: var(--font-sans);
  font-size: 14px;
  font-weight: 400;
  color: var(--ls-green);
  text-decoration: none;
  opacity: 0.78;
  border-bottom: 1px solid var(--ls-hair);
  padding-bottom: 2px;
  transition: opacity var(--transition), border-color var(--transition);
}

.ls-hero__link:hover { opacity: 1; border-bottom-color: var(--ls-gold); }
.ls-hero__link span { padding-left: 4px; }

/* ------------------------------------------------------------------ HÉLICE */
.ls-helix {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-3);
  min-width: 0;
}

.ls-helix__stage {
  position: relative;
  width: 100%;
  max-width: 460px;
  aspect-ratio: 4 / 5;
  /* Reserva de espacio: evita saltos de layout mientras carga la escena. */
}

.ls-helix__stage canvas {
  display: block;
  width: 100%;
  height: 100%;
  opacity: 0;
  transition: opacity 900ms cubic-bezier(0.2, 0, 0, 1);
  touch-action: pan-y;
}

.ls-helix__stage canvas.is-ready { opacity: 1; }

/* La ilustración SVG se ve desde el primer pintado; si el 3D llega a
   cargarse, se funde con el lienzo. Si no llega, se queda como estado final. */
.ls-helix__fallback {
  position: absolute;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 1;
  transition: opacity 700ms cubic-bezier(0.2, 0, 0, 1);
}

.ls-helix__fallback.is-hidden { opacity: 0; pointer-events: none; }
.ls-helix__fallback[hidden] { display: none; }
.ls-helix__fallback svg { width: 100%; height: 100%; overflow: visible; }

/* El lienzo se superpone a la ilustración durante el cruce */
.ls-helix__stage canvas { position: relative; z-index: 1; }

.ls-helix__caption {
  font-family: var(--font-sans);
  font-size: 11px;
  font-weight: 400;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--ls-muted);
  opacity: 0.72;
  margin: 0;
}

.ls-helix__toggle {
  position: absolute;
  right: 4px;
  bottom: 4px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 30px;
  height: 30px;
  padding: 0;
  cursor: pointer;
  background: transparent;
  border: 1px solid var(--ls-hair);
  border-radius: 3px;
  color: var(--ls-green);
  opacity: 0.5;
  transition: opacity var(--transition), border-color var(--transition);
}

.ls-helix__toggle:hover { opacity: 1; border-color: var(--ls-gold); }

.ls-helix__toggle svg { width: 12px; height: 12px; fill: currentColor; }
.ls-helix__toggle .ls-ico--play { display: none; }
.ls-helix__toggle[aria-pressed="true"] .ls-ico--pause { display: none; }
.ls-helix__toggle[aria-pressed="true"] .ls-ico--play { display: block; }

.ls-helix__toggle-label {
  position: absolute;
  width: 1px; height: 1px;
  overflow: hidden;
  clip-path: inset(50%);
  white-space: nowrap;
}

/* ------------------------------------------------- COSTURA CON LA SIGUIENTE */
.ls-hero__seam {
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 0 var(--container-pad) clamp(20px, 3vw, 34px);
}

.ls-hero__seam span {
  display: block;
  width: 100%;
  max-width: var(--container-max);
  height: 1px;
  background: var(--ls-hair);
  position: relative;
}

.ls-hero__seam span::after {
  content: "";
  position: absolute;
  left: 50%;
  top: -2px;
  width: 44px;
  height: 5px;
  transform: translateX(-50%);
  border-radius: 3px;
  background: var(--ls-gold);
  opacity: 0.55;
}

/* --------------------------------------------------------------- ENTRADA */
.reveal {
  opacity: 0;
  transform: translateY(14px);
  animation: ls-reveal 760ms cubic-bezier(0.2, 0, 0, 1) forwards;
  animation-delay: var(--d, 0ms);
}

@keyframes ls-reveal {
  to { opacity: 1; transform: translateY(0); }
}

/* Foco visible y consistente en toda la zona rediseñada */
.ls-header a:focus-visible,
.ls-hero a:focus-visible,
.ls-helix__toggle:focus-visible,
.ls-header .burger:focus-within {
  outline: 2px solid var(--ls-gold);
  outline-offset: 3px;
  border-radius: 2px;
}

/* ------------------------------------------------------------- RESPONSIVE */
@media (max-width: 980px) {
  .ls-hero__grid {
    grid-template-columns: 1fr;
    gap: clamp(28px, 6vw, 48px);
    justify-items: center;
    text-align: left;
  }
  .ls-hero__content { max-width: 34rem; width: 100%; }
  .ls-helix__stage { max-width: 340px; }
  /* En móvil el texto y los botones van primero; la hélice, después. */
  .ls-hero__content { order: 1; }
  .ls-helix { order: 2; }
}

@media (max-width: 768px) {
  .ls-header .container { min-height: 68px; }
  .ls-header .logo-text { font-size: 19px; }

  /* Se reafirma el menú móvil existente (casilla + etiqueta, sin JS) */
  .ls-header .burger { display: flex; }

  .ls-header .site-nav {
    display: none;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background: var(--ls-cream);
    border-top: 1px solid var(--ls-hair);
    border-bottom: 1px solid var(--ls-hair);
    padding: var(--space-5) var(--container-pad);
    flex-direction: column;
    align-items: flex-start;
    gap: var(--space-4);
  }

  .ls-header .nav-toggle:checked ~ .site-nav { display: flex; }

  .ls-header .site-nav__links {
    flex-direction: column;
    gap: var(--space-3);
    align-items: flex-start;
    width: 100%;
  }

  .ls-hero__actions { gap: var(--space-3); }
  .ls-btn { width: 100%; }
  .ls-hero__link { margin-top: var(--space-2); }
}

@media (max-width: 420px) {
  .ls-helix__stage { max-width: 280px; }
}

/* --------------------------------------------------- MOVIMIENTO REDUCIDO */
@media (prefers-reduced-motion: reduce) {
  .reveal {
    opacity: 1;
    transform: none;
    animation: none;
  }
  .ls-helix__stage canvas { transition: none; }
}

/* ==========================================================================
   TEST DE EDAD BIOLÓGICA
   ========================================================================== */
.test-header {
  background: var(--color-cream);
  border-bottom: var(--line-thin) solid var(--color-line);
  padding: var(--space-5) 0;
}
.test-header .logo-text { font-family: var(--font-serif); font-size: 19px; color: var(--color-forest); }
.test-header .logo-sep { color: var(--color-bronze); }

.test-shell { max-width: 720px; margin: 0 auto; padding: 0 var(--container-pad); }

/* --- Progreso --- */
.test-progress { margin: var(--space-7) 0 var(--space-6); }
.test-progress__meta {
  display: flex; justify-content: space-between; align-items: baseline;
  font-family: var(--font-sans); font-size: var(--fs-eyebrow);
  letter-spacing: 0.16em; text-transform: uppercase;
  color: var(--color-bronze); margin-bottom: var(--space-3);
}
.test-progress__meta span:last-child { color: var(--color-muted); letter-spacing: 0.08em; }
.test-progress__track {
  height: 2px; background: var(--color-line); border-radius: 1px; overflow: hidden;
}
.test-progress__fill {
  display: block;
  height: 100%; background: var(--color-forest);
  transition: width 420ms cubic-bezier(0.2, 0, 0, 1);
}

/* --- Encabezado del bloque --- */
.test-block__title {
  font-family: var(--font-serif); font-size: var(--fs-section);
  line-height: 1.1; color: var(--color-ink); margin: 0 0 var(--space-3);
}
.test-block__lead {
  font-size: var(--fs-body-lg); color: var(--color-muted);
  font-weight: 300; margin: 0 0 var(--space-8); max-width: 52ch;
}

/* --- Pregunta --- */
.question { border: 0; padding: 0; margin: 0 0 var(--space-8); }
.question__legend {
  font-family: var(--font-serif); font-size: var(--fs-subsection);
  line-height: 1.25; color: var(--color-ink);
  margin: 0 0 var(--space-2); padding: 0;
}
.question__num {
  font-family: var(--font-serif); color: var(--color-bronze);
  margin-right: var(--space-3);
}
.question__hint {
  font-size: var(--fs-small); color: var(--color-muted);
  font-weight: 300; margin: 0 0 var(--space-4); max-width: 56ch;
}
.question__options { display: flex; flex-direction: column; gap: var(--space-2); }

/* Opción como tarjeta seleccionable */
.opt {
  display: flex; align-items: flex-start; gap: var(--space-4);
  padding: var(--space-4) var(--space-5);
  background: var(--color-cream);
  border: var(--line-thin) solid var(--color-line);
  border-radius: var(--radius-md);
  cursor: pointer;
  font-size: var(--fs-body); line-height: 1.5; color: var(--color-ink);
  transition: border-color var(--transition), background var(--transition);
}
.opt:hover { border-color: var(--color-muted); }
.opt input { position: absolute; opacity: 0; pointer-events: none; }

.opt__mark {
  flex: 0 0 auto; width: 16px; height: 16px; margin-top: 3px;
  border: 1px solid var(--color-line); border-radius: 50%;
  position: relative; transition: border-color var(--transition);
}
.opt:has(input:checked) { border-color: var(--color-forest); background: var(--color-ivory); }
.opt:has(input:checked) .opt__mark { border-color: var(--color-forest); }
.opt:has(input:checked) .opt__mark::after {
  content: ""; position: absolute; inset: 3px;
  background: var(--color-forest); border-radius: 50%;
}
.opt:has(input:focus-visible) { outline: 2px solid var(--color-bronze); outline-offset: 2px; }

/* --- Acciones --- */
.test-actions {
  display: flex; flex-wrap: wrap; gap: var(--space-4); align-items: center;
  margin-top: var(--space-7);
  padding-top: var(--space-6);
  border-top: var(--line-thin) solid var(--color-line);
}
.test-back {
  font-size: var(--fs-small); color: var(--color-muted); text-decoration: none;
}
.test-back:hover { color: var(--color-ink); }
.test-error {
  font-size: var(--fs-small); color: #A14A38; margin: var(--space-4) 0 0;
}

/* ==========================================================================
   RESULTADO DEL TEST
   ========================================================================== */
.res-card {
  background: var(--color-forest);
  border-radius: var(--radius-md);
  padding: var(--space-8) var(--space-6);
  text-align: center;
  margin-top: var(--space-7);
}
.res-card__eyebrow {
  font-family: var(--font-sans); font-size: var(--fs-eyebrow);
  letter-spacing: 0.20em; text-transform: uppercase;
  color: var(--color-on-forest-muted); margin: 0 0 var(--space-5);
}
.res-card__age {
  font-family: var(--font-serif); font-weight: 400;
  font-size: clamp(72px, 15vw, 132px); line-height: 0.9;
  color: var(--color-on-forest-primary);
  letter-spacing: -0.035em; margin: 0;
  font-variant-numeric: tabular-nums;
}
.res-card__unit {
  font-size: 0.26em; letter-spacing: 0.02em;
  color: var(--color-on-forest-muted); padding-left: 0.34em;
}
.res-badge {
  display: inline-block; margin-top: var(--space-5);
  font-family: var(--font-sans); font-size: var(--fs-small); font-weight: 600;
  letter-spacing: 0.04em; padding: 9px 18px; border-radius: 2px;
  background: var(--color-bronze); color: #14211C;
}
.res-badge--under { background: var(--color-on-forest-primary); color: var(--color-forest); }
.res-card__chrono {
  font-family: var(--font-sans); font-size: var(--fs-body);
  color: var(--color-on-forest-muted); margin: var(--space-5) 0 0;
}
.res-card__chrono strong { color: var(--color-on-forest-primary); font-weight: 600; }

.res-verdict {
  font-family: var(--font-serif); font-size: var(--fs-subsection);
  line-height: 1.4; color: var(--color-ink); text-align: center;
  max-width: 46ch; margin: var(--space-7) auto var(--space-8);
}
.res-verdict strong { color: var(--color-forest); font-weight: 600; }

.res-section-title {
  font-family: var(--font-sans); font-size: var(--fs-eyebrow);
  letter-spacing: 0.18em; text-transform: uppercase;
  color: var(--color-bronze); text-align: center; margin: 0 0 var(--space-5);
}
.res-domains { position: relative; }
.res-domains__grid {
  display: grid; grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: var(--space-4);
  transition: filter 450ms ease, opacity 450ms ease;
}
.res-domains.is-locked .res-domains__grid {
  filter: blur(9px); opacity: 0.5; pointer-events: none; user-select: none;
}

.domain {
  background: var(--color-cream);
  border: var(--line-thin) solid var(--color-line);
  border-radius: var(--radius-md);
  padding: var(--space-5);
}
.domain--weak { border-color: var(--color-bronze); border-width: 1px; }
.domain__head {
  display: flex; justify-content: space-between; align-items: baseline;
  margin-bottom: var(--space-4); gap: var(--space-3);
}
.domain__name {
  font-family: var(--font-sans); font-size: var(--fs-body); font-weight: 600;
  color: var(--color-ink);
}
.domain__value {
  font-family: var(--font-serif); font-size: 26px; line-height: 1;
  color: var(--color-forest); font-variant-numeric: tabular-nums;
}
.domain--weak .domain__value { color: var(--color-bronze); }
.domain__value span { font-size: 0.55em; color: var(--color-muted); }
.domain__track {
  height: 5px; background: var(--color-line-soft);
  border-radius: 3px; overflow: hidden;
}
.domain__fill { display: block; height: 100%; background: var(--color-forest); border-radius: 3px; }
.domain--weak .domain__fill { background: var(--color-bronze); }
.domain__tag {
  display: inline-block; margin-top: var(--space-4);
  font-family: var(--font-sans); font-size: var(--fs-micro); font-weight: 600;
  letter-spacing: 0.14em; text-transform: uppercase; color: var(--color-bronze);
}
.domain__note {
  font-size: var(--fs-small); color: var(--color-muted);
  font-weight: 300; line-height: 1.55; margin: var(--space-3) 0 0;
}

.res-gate {
  position: absolute; inset: 0;
  display: flex; align-items: center; justify-content: center; padding: var(--space-4);
}
.res-domains:not(.is-locked) .res-gate { display: none; }
.res-gate__card {
  background: var(--color-cream);
  border: 1px solid var(--color-forest);
  border-radius: var(--radius-md);
  padding: var(--space-7) var(--space-6);
  max-width: 440px; width: 100%; text-align: center;
}
.res-gate__title {
  font-family: var(--font-serif); font-size: var(--fs-subsection);
  line-height: 1.25; color: var(--color-ink); margin: 0 0 var(--space-3);
}
.res-gate__desc {
  font-size: var(--fs-small); color: var(--color-muted);
  font-weight: 300; line-height: 1.6; margin: 0 0 var(--space-5);
}
.res-gate__desc strong { color: var(--color-ink); font-weight: 600; }
.res-gate__form { display: flex; flex-direction: column; gap: var(--space-3); }
.res-gate__form input[type="tel"] {
  width: 100%; padding: 16px 18px;
  font-family: var(--font-sans); font-size: 17px;
  color: var(--color-ink); text-align: center; letter-spacing: 0.04em;
  background: var(--color-ivory);
  border: var(--line-thin) solid var(--color-line);
  border-radius: var(--radius-sm);
}
.res-gate__form input[type="tel"]:focus { outline: none; border-color: var(--color-forest); }
.res-gate__form .btn { width: 100%; padding: 18px 24px; font-size: 13px; }
.res-gate__consent {
  display: flex; gap: var(--space-3); align-items: flex-start;
  font-size: var(--fs-micro); color: var(--color-muted);
  line-height: 1.5; text-align: left;
}
.res-gate__consent input { margin-top: 2px; flex: 0 0 auto; }
.res-gate__note { font-size: var(--fs-micro); color: var(--color-muted); margin: var(--space-4) 0 0; }

.res-disclaimer {
  font-size: var(--fs-small); color: var(--color-muted);
  font-weight: 300; line-height: 1.6;
  border-left: 2px solid var(--color-bronze);
  padding-left: var(--space-4); margin: var(--space-8) 0 var(--space-9);
}

@media (max-width: 640px) {
  .res-domains__grid { grid-template-columns: 1fr; }
  .res-gate { position: static; padding: 0; margin-top: var(--space-6); }
  .res-domains.is-locked .res-domains__grid { filter: blur(6px); }
  .res-card { padding: var(--space-7) var(--space-5); }
}

/* Hero a una sola columna, cuando no hay pieza gráfica que acompañe */
.hero--single { grid-template-columns: 1fr; }
.hero--single .hero__content { max-width: 62ch; }

/* Navegación entre pasos del test: la acción principal ocupa el mismo ancho
   que las tarjetas de respuesta, para que el ritmo de la pantalla no se rompa.
   Clase propia: .test-actions se usa también fuera del test. */
.test-nav {
  display: flex;
  flex-direction: column;
  gap: var(--space-4);
  margin-top: var(--space-8);
  padding-top: var(--space-7);
  padding-bottom: var(--space-9);
  border-top: var(--line-thin) solid var(--color-line);
}
.test-nav .btn {
  width: 100%;
  padding: 19px 26px;
  font-size: 13px;
}
.test-nav .test-back {
  align-self: center;
  font-size: var(--fs-small);
  color: var(--color-muted);
  padding: var(--space-2);
}
.test-nav .test-back:hover { color: var(--color-ink); }

/* El desplegable del test hereda el estilo de los campos, sin flecha nativa */
.field select {
  appearance: none;
  -webkit-appearance: none;
  background-image: url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 12 8'><path d='M1 1.5 L6 6.5 L11 1.5' fill='none' stroke='%23666A61' stroke-width='1.4' stroke-linecap='round'/></svg>");
  background-repeat: no-repeat;
  background-position: right var(--space-4) center;
  background-size: 12px 8px;
  padding-right: var(--space-8);
}

/* Cierre del resultado: el .cta-block del sitio se aplasta dentro del
   contenedor estrecho del test, así que aquí se usa uno propio. */
.res-cta {
  background: var(--color-forest);
  border-radius: var(--radius-md);
  padding: var(--space-7) var(--space-6);
  text-align: center;
  margin-top: var(--space-8);
}
.res-cta__title {
  font-family: var(--font-serif); font-size: var(--fs-subsection);
  line-height: 1.3; color: var(--color-on-forest-primary);
  margin: 0 0 var(--space-3);
}
.res-cta__meta {
  font-size: var(--fs-small); color: var(--color-on-forest-muted);
  font-weight: 300; margin: 0 0 var(--space-6);
}
.res-cta__actions {
  display: flex; flex-wrap: wrap; gap: var(--space-3); justify-content: center;
}
@media (max-width: 560px) {
  .res-cta__actions { flex-direction: column; }
  .res-cta__actions .btn { width: 100%; }
}