/* --- STYLES FOR CARDIO ALTITUD MEXICO --- */

:root {
  --altitud-fondo: #faf9f6;
  --altitud-superficie: #ffffff;
  --oxigeno-primario: #ce5a37; /* Terracotta active color */
  --oxigeno-secundario: #1b2e3c; /* Deep slate blue */
  --oxigeno-suave: #f4ece8;
  --pulso-borde: #e5e2db;
  --pulso-sombras: 0 12px 28px rgba(27, 46, 60, 0.06);
  --pulso-radio: 18px; /* soft style scale */
  --font-display: 'Raleway', sans-serif;
  --font-body: 'Open Sans', sans-serif;
}

/* Base resets & typography */
* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

body {
  background-color: var(--altitud-fondo);
  color: var(--oxigeno-secundario);
  font-family: var(--font-body);
  font-size: 1rem;
  line-height: 1.65;
  overflow-x: hidden;
}

h1, h2, h3, h4 {
  font-family: var(--font-display);
  font-weight: 800;
  color: var(--oxigeno-secundario);
  line-height: 1.2;
}

a {
  color: inherit;
  text-decoration: none;
  transition: color 0.3s ease, transform 0.2s ease;
}

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

/* Scroll-driven Progress Bar */
.scroll-progreso-barra {
  position: fixed;
  top: 0;
  left: 0;
  height: 4px;
  background-color: var(--oxigeno-primario);
  width: 0%;
  z-index: 10000;
  animation: progreso-crecer linear;
  animation-timeline: scroll();
}

@keyframes progreso-crecer {
  to { width: 100%; }
}

/* CSS Scroll Reveal Animations */
.revelacion-seccion {
  animation: deslizar-arriba linear both;
  animation-timeline: view();
  animation-range: entry 5% entry 35%;
}

@keyframes deslizar-arriba {
  from {
    opacity: 0;
    transform: translateY(50px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* --- HEADER SYSTEM (Preset H: Display font logo, minimal design) --- */
.altitud-cabecera {
  background-color: var(--altitud-superficie);
  border-bottom: 1px solid var(--pulso-borde);
  position: sticky;
  top: 0;
  z-index: 999;
  padding: 1.2rem 2rem;
}

.altitud-cabecera-interno {
  max-width: 1300px;
  margin: 0 auto;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.altitud-identidad {
  display: flex;
  align-items: center;
  gap: 0.8rem;
}

.altitud-logotipo-svg {
  width: 42px;
  height: 42px;
  fill: var(--oxigeno-primario);
}

.altitud-brandname {
  font-family: var(--font-display);
  font-size: 2.2rem;
  font-weight: 900;
  letter-spacing: -1px;
  color: var(--oxigeno-secundario);
}

/* Navigation - small-caps thin style */
.altitud-barra-navegacion {
  display: flex;
  align-items: center;
  gap: 2.5rem;
}

.altitud-enlaces-lista {
  display: flex;
  gap: 2rem;
}

.altitud-enlaces-lista a {
  font-family: var(--font-display);
  font-variant: all-small-caps;
  font-weight: 500;
  font-size: 1.15rem;
  letter-spacing: 1px;
  color: var(--oxigeno-secundario);
  position: relative;
  padding: 0.3rem 0;
}

.altitud-enlaces-lista a::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 0;
  height: 2px;
  background-color: var(--oxigeno-primario);
  transition: width 0.3s ease;
}

.altitud-enlaces-lista a:hover::after {
  width: 100%;
}

/* Mobile Hamburger with CSS only */
.altitud-menu-toggle {
  display: none;
}

.altitud-menu-icono {
  display: none;
  cursor: pointer;
  flex-direction: column;
  gap: 6px;
  z-index: 1001;
}

.altitud-menu-icono span {
  width: 25px;
  height: 3px;
  background-color: var(--oxigeno-secundario);
  transition: all 0.3s ease;
}

/* Preset H Button Styles */
.altitud-accion-tipografica {
  display: inline-block;
  font-family: var(--font-display);
  font-weight: 700;
  text-transform: uppercase;
  font-size: 0.9rem;
  letter-spacing: 1.5px;
  padding: 0.9rem 2rem;
  background-color: var(--oxigeno-primario);
  color: var(--altitud-superficie);
  border-radius: var(--pulso-radio);
  border: 2px solid var(--oxigeno-primario);
  cursor: pointer;
  text-align: center;
  transition: all 0.3s cubic-bezier(0.165, 0.84, 0.44, 1);
}

.altitud-accion-tipografica:hover {
  background-color: transparent;
  color: var(--oxigeno-primario);
  transform: translateY(-2px);
}

.altitud-accion-fantasma {
  display: inline-block;
  font-family: var(--font-display);
  font-weight: 700;
  text-transform: uppercase;
  font-size: 0.9rem;
  letter-spacing: 1.5px;
  padding: 0.9rem 2rem;
  background-color: transparent;
  color: var(--altitud-superficie);
  border-radius: var(--pulso-radio);
  border: 2px solid var(--altitud-superficie);
  cursor: pointer;
  text-align: center;
  transition: all 0.3s ease;
}

.altitud-accion-fantasma:hover {
  background-color: var(--altitud-superficie);
  color: var(--oxigeno-secundario);
}

/* --- HERO SECTION (Preset H: Word-by-word layout, faint bg) --- */
.oxigeno-pantalla-hero {
  position: relative;
  min-height: 90vh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 6dvh 2rem;
  background-color: var(--altitud-superficie);
  overflow: hidden;
}

.oxigeno-hero-decoracion-bg {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background-image: url('img/bg.webp');
  background-size: cover;
  background-position: center;
  opacity: 0.08;
  z-index: 1;
}

.oxigeno-hero-contenedor {
  position: relative;
  z-index: 2;
  max-width: 1200px;
  width: 100%;
}

.oxigeno-hero-texto-asimetrico {
  font-size: clamp(3rem, 7vw, 6.5rem);
  line-height: 0.95;
  text-transform: uppercase;
  font-weight: 900;
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.oxigeno-hero-linea-1 {
  align-self: flex-start;
  color: var(--oxigeno-secundario);
}

.oxigeno-hero-linea-2 {
  align-self: center;
  color: var(--oxigeno-primario);
  font-style: italic;
}

.oxigeno-hero-linea-3 {
  align-self: flex-end;
  text-decoration: underline;
  text-decoration-color: var(--oxigeno-primario);
}

.oxigeno-hero-bajada {
  margin-top: 3rem;
  max-width: 620px;
  margin-left: auto;
  font-size: 1.2rem;
  color: var(--oxigeno-secundario);
  border-left: 4px solid var(--oxigeno-primario);
  padding-left: 1.5rem;
}

.oxigeno-hero-botones {
  margin-top: 2rem;
  display: flex;
  justify-content: flex-end;
  gap: 1.5rem;
}

/* --- CONTENT: 3-COL MASONRY OF TEXT --- */
.pulso-masonry-seccion {
  padding: 10dvh 2rem;
  background-color: var(--altitud-fondo);
}

.pulso-masonry-ancho {
  max-width: 1300px;
  margin: 0 auto;
}

.pulso-masonry-encabezado {
  font-size: 2.8rem;
  margin-bottom: 4rem;
  max-width: 800px;
}

.pulso-masonry-rejilla {
  column-count: 3;
  column-gap: 3rem;
  column-rule: 1px solid var(--pulso-borde);
}

@media (max-width: 992px) {
  .pulso-masonry-rejilla {
    column-count: 2;
  }
}

@media (max-width: 768px) {
  .pulso-masonry-rejilla {
    column-count: 1;
  }
}

.pulso-masonry-bloque {
  break-inside: avoid;
  margin-bottom: 2.5rem;
}

.pulso-masonry-bloque h3 {
  font-size: 1.5rem;
  margin-bottom: 1rem;
  color: var(--oxigeno-primario);
}

.pulso-masonry-bloque p {
  color: #4a5568;
  font-size: 1rem;
  margin-bottom: 1rem;
}

.pulso-bloque-decorador {
  display: inline-block;
  width: 24px;
  height: 24px;
  fill: var(--oxigeno-primario);
  margin-top: 0.5rem;
}

/* --- FULL WIDTH BG2.WEBP WITH TEXT ON TOP --- */
.valle-fisiologia-banner {
  position: relative;
  height: 52vh;
  min-height: 400px;
  display: flex;
  align-items: center;
  background-image: url('img/bg2.webp');
  background-size: cover;
  background-position: center;
  background-attachment: fixed;
}

.valle-fisiologia-banner::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: linear-gradient(90deg, rgba(27,46,60,0.92) 0%, rgba(27,46,60,0.5) 100%);
  z-index: 1;
}

.valle-fisiologia-interno {
  position: relative;
  z-index: 2;
  max-width: 1300px;
  width: 100%;
  margin: 0 auto;
  padding: 0 2rem;
  color: var(--altitud-superficie);
}

.valle-fisiologia-interno h2 {
  color: var(--altitud-superficie);
  font-size: 3rem;
  max-width: 650px;
  margin-bottom: 1.5rem;
}

.valle-fisiologia-interno p {
  max-width: 580px;
  font-size: 1.15rem;
  opacity: 0.9;
}

/* --- FEATURES: INLINE MANIFESTO LINES --- */
.cardio-manifesto-seccion {
  padding: 10dvh 2rem;
  background-color: var(--altitud-superficie);
}

.cardio-manifesto-interno {
  max-width: 1100px;
  margin: 0 auto;
}

.cardio-manifesto-titulo {
  font-size: 2.5rem;
  margin-bottom: 3.5rem;
  text-align: center;
}

.cardio-manifesto-lista {
  display: flex;
  flex-direction: column;
}

.cardio-manifesto-linea {
  display: flex;
  align-items: baseline;
  gap: 2rem;
  padding: 2.2rem 0;
  border-bottom: 1px solid var(--pulso-borde);
}

.cardio-manifesto-linea:last-child {
  border-bottom: none;
}

.cardio-manifesto-simbolo {
  font-size: 1.6rem;
  font-weight: 900;
  color: var(--oxigeno-primario);
  flex-shrink: 0;
  width: 30px;
}

.cardio-manifesto-contenido {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 0.5rem 1.5rem;
}

.cardio-manifesto-concepto {
  font-family: var(--font-display);
  font-size: 1.4rem;
  font-weight: 800;
  color: var(--oxigeno-secundario);
}

.cardio-manifesto-explicacion {
  font-size: 1.05rem;
  color: #555;
  max-width: 680px;
}

/* --- HOW IT WORKS (Preset H: Rotated Step Numbers) --- */
.altitud-pasos-seccion {
  padding: 10dvh 2rem;
  background-color: var(--altitud-fondo);
  overflow: hidden;
}

.altitud-pasos-interno {
  max-width: 1300px;
  margin: 0 auto;
}

.altitud-pasos-pre {
  font-family: var(--font-display);
  font-variant: all-small-caps;
  color: var(--oxigeno-primario);
  font-size: 1.2rem;
  letter-spacing: 2px;
  margin-bottom: 1rem;
}

.altitud-pasos-cabecera {
  font-size: 3rem;
  margin-bottom: 5rem;
}

.altitud-pasos-flujo {
  display: flex;
  gap: 4rem;
  justify-content: space-between;
}

@media (max-width: 992px) {
  .altitud-pasos-flujo {
    flex-direction: column;
    gap: 6rem;
  }
}

.altitud-paso-asimetrico {
  position: relative;
  flex: 1;
}

/* Rotated step deco numbers */
.altitud-paso-numero-decoracion {
  position: absolute;
  top: -45px;
  left: -20px;
  font-family: var(--font-display);
  font-size: 7.5rem;
  font-weight: 900;
  color: var(--oxigeno-primario);
  opacity: 0.12;
  transform: rotate(-12deg);
  user-select: none;
}

.altitud-paso-bloque-texto {
  position: relative;
  z-index: 2;
  padding-top: 2rem;
}

.altitud-paso-bloque-texto h4 {
  font-size: 1.6rem;
  margin-bottom: 1rem;
}

.altitud-paso-bloque-texto p {
  color: #4a5568;
}

/* --- CTA STRIP (Asymmetric typographical layout) --- */
.oxigeno-accion-cinta {
  background-color: var(--oxigeno-secundario);
  color: var(--altitud-superficie);
  padding: 8dvh 2rem;
  position: relative;
}

.oxigeno-cinta-interno {
  max-width: 1300px;
  margin: 0 auto;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 3rem;
  flex-wrap: wrap;
}

.oxigeno-cinta-eslogan {
  font-family: var(--font-display);
  font-size: clamp(2rem, 4vw, 3.8rem);
  font-weight: 900;
  line-height: 1.1;
  max-width: 800px;
  color: var(--altitud-superficie);
}

.oxigeno-cinta-eslogan span {
  color: var(--oxigeno-primario);
}

/* --- EXPERT PAGE STYLES --- */
.pulso-bio-rejilla {
  display: flex;
  max-width: 1300px;
  margin: 0 auto;
  padding: 10dvh 2rem;
  gap: 4rem;
  align-items: center;
}

@media (max-width: 992px) {
  .pulso-bio-rejilla {
    flex-direction: column;
  }
}

.pulso-bio-texto {
  flex: 1;
}

.pulso-bio-texto h2 {
  font-size: 3.5rem;
  margin-bottom: 2rem;
}

/* Drop-cap for editorial preset H */
.pulso-letra-capital::first-letter {
  font-family: var(--font-display);
  font-size: 5rem;
  font-weight: 900;
  float: left;
  line-height: 0.8;
  margin-right: 12px;
  color: var(--oxigeno-primario);
}

.pulso-bio-imagen-marco {
  flex: 1;
  border-radius: var(--pulso-radio);
  overflow: hidden;
  box-shadow: var(--pulso-sombras);
}

.pulso-bio-imagen-marco img {
  width: 100%;
  height: auto;
  object-fit: cover;
}

/* Plain text stats (Preset H) */
.pulso-estadisticas-simples {
  padding: 8dvh 2rem;
  background-color: var(--altitud-superficie);
}

.pulso-estadisticas-interno {
  max-width: 1200px;
  margin: 0 auto;
  display: flex;
  justify-content: space-around;
  gap: 3rem;
  flex-wrap: wrap;
}

.pulso-estadisticas-elemento {
  text-align: center;
  flex: 1;
  min-width: 220px;
}

.pulso-numero-gigante {
  font-family: var(--font-display);
  font-size: 5rem;
  font-weight: 900;
  color: var(--oxigeno-primario);
  line-height: 1;
  margin-bottom: 0.5rem;
}

.pulso-numero-etiqueta {
  font-weight: 700;
  font-size: 1.1rem;
  color: var(--oxigeno-secundario);
}

/* --- RESERVE / SIGNUP PAGE STYLES --- */
.altitud-registro-vista {
  padding: 8dvh 2rem;
  max-width: 1300px;
  margin: 0 auto;
}

.altitud-registro-vista h2 {
  font-size: 3.5rem;
  text-align: center;
  margin-bottom: 4rem;
}

.altitud-registro-mecanismo {
  display: flex;
  gap: 4rem;
  max-width: 1100px;
  margin: 0 auto;
}

@media (max-width: 992px) {
  .altitud-registro-mecanismo {
    flex-direction: column-reverse;
  }
}

.altitud-tarjetas-informacion {
  flex: 1;
  display: flex;
  flex-direction: column;
  gap: 2.5rem;
}

.altitud-informacion-nodo {
  border-top: 3px solid var(--oxigeno-primario);
  padding-top: 1.5rem;
}

.altitud-informacion-nodo h4 {
  font-size: 1.4rem;
  margin-bottom: 1rem;
}

.altitud-informacion-lista {
  list-style: none;
  margin-top: 1rem;
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.altitud-informacion-lista li {
  position: relative;
  padding-left: 1.5rem;
}

.altitud-informacion-lista li::before {
  content: "•";
  color: var(--oxigeno-primario);
  position: absolute;
  left: 0;
  font-weight: 900;
}

/* Underline-only input form style */
.altitud-formulario-contenedor {
  flex: 1;
  background-color: var(--altitud-superficie);
  padding: 3.5rem;
  border-radius: var(--pulso-radio);
  box-shadow: var(--pulso-sombras);
}

.altitud-formulario-grupo {
  margin-bottom: 2.5rem;
}

.altitud-formulario-grupo label {
  display: block;
  font-family: var(--font-display);
  font-size: 0.9rem;
  font-weight: 700;
  text-transform: uppercase;
  margin-bottom: 0.5rem;
  color: var(--oxigeno-secundario);
}

.altitud-campo-subrayado {
  width: 100%;
  border: none;
  border-bottom: 2px solid var(--pulso-borde);
  padding: 0.8rem 0;
  font-family: var(--font-body);
  font-size: 1.1rem;
  color: var(--oxigeno-secundario);
  background-color: transparent;
  outline: none;
  transition: border-color 0.3s ease;
}

.altitud-campo-subrayado:focus {
  border-color: var(--oxigeno-primario);
}

.altitud-regulacion-casilla {
  display: flex;
  align-items: flex-start;
  gap: 0.8rem;
  font-size: 0.9rem;
}

.altitud-regulacion-casilla input {
  margin-top: 0.25rem;
  cursor: pointer;
}

/* FAQ Accordion Styling (CSS-Only) */
.altitud-acordeon-seccion {
  max-width: 850px;
  margin: 10dvh auto 0 auto;
}

.altitud-acordeon-seccion h3 {
  font-size: 2.2rem;
  margin-bottom: 3rem;
  text-align: center;
}

.altitud-pregunta-nodo {
  border-bottom: 1px solid var(--pulso-borde);
  padding: 1.5rem 0;
}

.altitud-pregunta-nodo summary {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1.25rem;
  cursor: pointer;
  list-style: none;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.altitud-pregunta-nodo summary::-webkit-details-marker {
  display: none;
}

.altitud-pregunta-nodo summary::after {
  content: "+";
  font-size: 1.6rem;
  color: var(--oxigeno-primario);
  font-weight: 700;
}

.altitud-pregunta-nodo[open] summary::after {
  content: "−";
}

.altitud-pregunta-nodo p {
  margin-top: 1rem;
  color: #4a5568;
}

/* --- THANK YOU PAGE --- */
.gracias-vista-interna {
  max-width: 800px;
  margin: 12dvh auto;
  text-align: center;
  padding: 0 2rem;
}

.gracias-vista-interna h1 {
  font-size: 4rem;
  margin-bottom: 1.5rem;
  color: var(--oxigeno-primario);
}

.gracias-vista-interna p {
  font-size: 1.25rem;
  margin-bottom: 3rem;
  color: var(--oxigeno-secundario);
}

.gracias-marco-ilustracion {
  max-width: 500px;
  margin: 0 auto 3rem auto;
  border-radius: var(--pulso-radio);
  overflow: hidden;
  box-shadow: var(--pulso-sombras);
}

/* --- LEGAL PAGES STYLE --- */
.legal-documentacion {
  max-width: 900px;
  margin: 8dvh auto;
  padding: 0 2rem;
  min-height: 80vh;
}

.legal-documentacion h1 {
  font-size: 3rem;
  margin-bottom: 2.5rem;
  border-bottom: 3px solid var(--oxigeno-primario);
  padding-bottom: 1rem;
}

.legal-documentacion h2 {
  font-size: 1.8rem;
  margin-top: 2.5rem;
  margin-bottom: 1rem;
}

.legal-documentacion p {
  margin-bottom: 1.2rem;
  color: #4a5568;
  font-size: 1.05rem;
}

/* --- COOKIE BANNER --- */
.altitud-galleta-banner {
  position: fixed;
  bottom: 0;
  left: 0;
  width: 100%;
  background-color: var(--oxigeno-secundario);
  color: var(--altitud-superficie);
  padding: 1.5rem 2rem;
  z-index: 9999;
  box-shadow: 0 -5px 25px rgba(0,0,0,0.15);
  display: none;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 1.5rem;
}

.altitud-galleta-banner p {
  max-width: 800px;
  font-size: 0.95rem;
}

.altitud-galleta-botones {
  display: flex;
  gap: 1rem;
}

.altitud-galleta-boton-confirmar {
  background-color: var(--oxigeno-primario);
  color: var(--altitud-superficie);
  border: none;
  padding: 0.6rem 1.5rem;
  font-family: var(--font-display);
  font-weight: 700;
  border-radius: var(--pulso-radio);
  cursor: pointer;
}

.altitud-galleta-boton-rechazar {
  background-color: transparent;
  color: var(--altitud-superficie);
  border: 1px solid rgba(255,255,255,0.4);
  padding: 0.6rem 1.5rem;
  font-family: var(--font-display);
  font-weight: 500;
  border-radius: var(--pulso-radio);
  cursor: pointer;
}

/* --- FOOTER MAIN --- */
.altitud-pie-pagina {
  background-color: var(--oxigeno-secundario);
  color: var(--altitud-superficie);
  padding: 6rem 2rem 2.5rem 2rem;
}

.altitud-pie-interno {
  max-width: 1300px;
  margin: 0 auto;
}

.altitud-pie-central {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  flex-wrap: wrap;
  gap: 3rem;
  border-bottom: 1px solid rgba(255, 255, 255, 0.1);
  padding-bottom: 4rem;
  margin-bottom: 2.5rem;
}

.altitud-pie-informacion {
  max-width: 450px;
}

.altitud-pie-enlaces {
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.altitud-pie-enlaces a {
  opacity: 0.8;
  font-size: 0.95rem;
}

.altitud-pie-enlaces a:hover {
  opacity: 1;
  color: var(--oxigeno-primario);
}

.altitud-pie-disclaimer {
  font-size: 0.85rem;
  opacity: 0.6;
  line-height: 1.6;
  margin-bottom: 1.5rem;
}

.altitud-pie-copyright {
  text-align: center;
  font-size: 0.85rem;
  opacity: 0.5;
}

/* Responsive Overrides */
@media (max-width: 768px) {
  .altitud-barra-navegacion {
    position: fixed;
    top: 75px;
    left: -100%;
    width: 100%;
    height: calc(100vh - 75px);
    background-color: var(--altitud-superficie);
    flex-direction: column;
    padding: 3rem 2rem;
    gap: 3rem;
    transition: left 0.4s ease;
    z-index: 1000;
    box-shadow: 0 10px 20px rgba(0,0,0,0.05);
  }

  .altitud-enlaces-lista {
    flex-direction: column;
    align-items: center;
    gap: 2rem;
  }

  .altitud-menu-icono {
    display: flex;
  }

  .altitud-menu-toggle:checked ~ .altitud-barra-navegacion {
    left: 0;
  }

  .altitud-menu-toggle:checked ~ .altitud-menu-icono span:nth-child(1) {
    transform: rotate(45deg) translate(6px, 6px);
  }

  .altitud-menu-toggle:checked ~ .altitud-menu-icono span:nth-child(2) {
    opacity: 0;
  }

  .altitud-menu-toggle:checked ~ .altitud-menu-icono span:nth-child(3) {
    transform: rotate(-45deg) translate(6px, -6px);
  }

  .oxigeno-hero-botones {
    flex-direction: column;
    align-items: stretch;
  }

  .oxigeno-cinta-interno {
    flex-direction: column;
    text-align: center;
  }

  .altitud-registro-mecanismo {
    gap: 2.5rem;
  }

  .altitud-formulario-contenedor {
    padding: 2rem;
  }
}