/* ==========================================================================
   COLEGIO HELICE — Sistema de diseño
   --------------------------------------------------------------------------
   Paleta extraída del logo oficial (PRINCIPAL@4x.png):
     #F5BE0B  dorado ADN (acento de marca)
     #1C252C  carbón (primario / fondos oscuros)
     #808285  gris de marca (texto "Colegio" del logotipo)
   Tipografía: Poppins (display, geométrica ≈ Avenir del logotipo)
               Nunito Sans (cuerpo, sustituto libre de Avenir/Proxima Nova)
   Reglas Elementor: solo containers flex/grid · spacing en px ·
                     clases kebab-case · breakpoints 1024 / 767
   ========================================================================== */

/* --------------------------------------------------------------------------
   1. TOKENS
   -------------------------------------------------------------------------- */
:root {
  /* Marca */
  --oro:            #F5BE0B;
  --oro-claro:      #FFD24A;
  --oro-oscuro:     #D9A505;
  --carbon:         #1C252C;
  --carbon-profundo:#141A20;
  --carbon-suave:   #26313A;
  --gris-marca:     #808285;

  /* Neutros */
  --crema:          #FBF8F1;
  --crema-oscura:   #F3EEE2;
  --blanco:         #FFFFFF;
  --texto:          #1C252C;
  --texto-suave:    #5A6570;
  --texto-claro:    #C9CFD5;
  --borde:          #E4DED0;
  --borde-oscuro:   rgba(255, 255, 255, 0.12);

  /* Tipografía */
  --font-display: "Poppins", "Segoe UI", Arial, sans-serif;
  --font-texto:   "Nunito Sans", "Segoe UI", Arial, sans-serif;

  /* Medidas */
  --ancho-max:    1240px;
  --ancho-texto:  760px;
  --radio:        18px;
  --radio-sm:     10px;
  --radio-lg:     28px;

  /* Sombras */
  --sombra-sm: 0 4px 14px rgba(28, 37, 44, 0.07);
  --sombra:    0 14px 40px rgba(28, 37, 44, 0.10);
  --sombra-lg: 0 28px 70px rgba(28, 37, 44, 0.16);

  /* Transición */
  --trans: 260ms cubic-bezier(0.22, 0.61, 0.36, 1);

  /* Altura del header fijo */
  --header-h: 84px;
}

/* --------------------------------------------------------------------------
   2. RESET
   -------------------------------------------------------------------------- */
*,
*::before,
*::after { box-sizing: border-box; }

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

body {
  margin: 0;
  font-family: var(--font-texto);
  font-size: 17px;
  line-height: 1.72;
  color: var(--texto);
  background: var(--blanco);
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

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

img { height: auto; }

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

button,
input,
select,
textarea { font: inherit; color: inherit; }

h1, h2, h3, h4, h5 {
  font-family: var(--font-display);
  font-weight: 700;
  line-height: 1.14;
  letter-spacing: -0.02em;
  margin: 0 0 18px;
  color: var(--carbon);
}

h1 { font-size: 62px; }
h2 { font-size: 44px; }
h3 { font-size: 26px; }
h4 { font-size: 20px; letter-spacing: -0.01em; }

p { margin: 0 0 18px; }
p:last-child { margin-bottom: 0; }

ul, ol { margin: 0 0 18px; padding-left: 22px; }
li { margin-bottom: 8px; }

strong { font-weight: 700; }

::selection { background: var(--oro); color: var(--carbon); }

:focus-visible {
  outline: 3px solid var(--oro);
  outline-offset: 3px;
  border-radius: 4px;
}

.skip-link {
  position: absolute;
  top: -60px;
  left: 16px;
  z-index: 999;
  padding: 12px 22px;
  background: var(--oro);
  color: var(--carbon);
  font-weight: 700;
  border-radius: 0 0 10px 10px;
  transition: top var(--trans);
}
.skip-link:focus { top: 0; }

/* --------------------------------------------------------------------------
   3. LAYOUT BASE
   -------------------------------------------------------------------------- */
.contenedor {
  width: 100%;
  max-width: var(--ancho-max);
  margin: 0 auto;
  padding-left: 32px;
  padding-right: 32px;
}

.contenedor-ancho {
  width: 100%;
  max-width: 1480px;
  margin: 0 auto;
  padding-left: 32px;
  padding-right: 32px;
}

.seccion {
  display: flex;
  flex-direction: column;
  padding-top: 110px;
  padding-bottom: 110px;
}

.seccion-compacta {
  padding-top: 72px;
  padding-bottom: 72px;
}

.seccion-crema  { background: var(--crema); }
.seccion-blanca { background: var(--blanco); }

.seccion-oscura {
  background: var(--carbon);
  color: var(--texto-claro);
  position: relative;
  overflow: hidden;
}
.seccion-oscura h1,
.seccion-oscura h2,
.seccion-oscura h3,
.seccion-oscura h4 { color: var(--blanco); }

/* Marca de agua de hélice para secciones oscuras */
.seccion-oscura::after {
  content: "";
  position: absolute;
  top: 50%;
  right: -80px;
  width: 340px;
  height: 660px;
  transform: translateY(-50%);
  background: url("../img/brand/isotipo-helice-gold.png") no-repeat center / contain;
  opacity: 0.05;
  pointer-events: none;
}

.seccion-oscura > * { position: relative; z-index: 1; }

/* --------------------------------------------------------------------------
   4. TIPOGRAFÍA DE SECCIÓN
   -------------------------------------------------------------------------- */
.kicker {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-family: var(--font-display);
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--oro-oscuro);
  margin-bottom: 18px;
}

.kicker::before {
  content: "";
  width: 30px;
  height: 2px;
  background: var(--oro);
  border-radius: 2px;
}

.seccion-oscura .kicker { color: var(--oro); }

.encabezado-seccion {
  display: flex;
  flex-direction: column;
  max-width: var(--ancho-texto);
  margin-bottom: 60px;
}

.encabezado-seccion.centrado {
  align-items: center;
  text-align: center;
  margin-left: auto;
  margin-right: auto;
}

.entradilla {
  font-size: 20px;
  line-height: 1.65;
  color: var(--texto-suave);
  margin-bottom: 0;
}

.seccion-oscura .entradilla { color: var(--texto-claro); }

/* Palabra resaltada con trazo dorado */
.resalte {
  color: var(--oro);
  position: relative;
  white-space: nowrap;
}

.resalte-fondo {
  background: linear-gradient(180deg, transparent 62%, rgba(245, 190, 11, 0.42) 62%);
  padding: 0 3px;
}

/* --------------------------------------------------------------------------
   5. BOTONES
   -------------------------------------------------------------------------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  padding: 16px 32px;
  font-family: var(--font-display);
  font-size: 15px;
  font-weight: 600;
  letter-spacing: 0.01em;
  border: 2px solid transparent;
  border-radius: 100px;
  cursor: pointer;
  text-align: center;
  transition: transform var(--trans), background-color var(--trans),
              color var(--trans), border-color var(--trans), box-shadow var(--trans);
}

.btn:hover { transform: translateY(-2px); }
.btn:active { transform: translateY(0); }

.btn-oro {
  background: var(--oro);
  color: var(--carbon);
  box-shadow: 0 8px 24px rgba(245, 190, 11, 0.32);
}
.btn-oro:hover {
  background: var(--oro-claro);
  box-shadow: 0 14px 32px rgba(245, 190, 11, 0.42);
}

.btn-carbon {
  background: var(--carbon);
  color: var(--blanco);
}
.btn-carbon:hover { background: var(--carbon-suave); }

.btn-linea {
  background: transparent;
  border-color: var(--carbon);
  color: var(--carbon);
}
.btn-linea:hover { background: var(--carbon); color: var(--blanco); }

.btn-linea-clara {
  background: transparent;
  border-color: rgba(255, 255, 255, 0.35);
  color: var(--blanco);
}
.btn-linea-clara:hover {
  background: var(--blanco);
  border-color: var(--blanco);
  color: var(--carbon);
}

.btn-sm { padding: 11px 22px; font-size: 14px; }

.btn-whatsapp {
  background: #25D366;
  color: #0b3d2b;
  gap: 8px;
}
.btn-whatsapp:hover {
  background: #1ebe5a;
  box-shadow: 0 12px 28px rgba(37, 211, 102, 0.38);
}
.btn-whatsapp svg { flex-shrink: 0; }

/* Botón flotante de WhatsApp (todas las páginas) */
.wa-flotante {
  position: fixed;
  right: 22px;
  bottom: 22px;
  z-index: 900;
  width: 58px;
  height: 58px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  background: #25D366;
  color: #fff;
  box-shadow: 0 8px 24px rgba(37, 211, 102, 0.45);
  transition: transform 0.2s ease, box-shadow 0.2s ease;
}
.wa-flotante:hover {
  transform: translateY(-3px) scale(1.05);
  box-shadow: 0 12px 30px rgba(37, 211, 102, 0.55);
}
.wa-flotante svg { width: 30px; height: 30px; }
@media (max-width: 600px) {
  .wa-flotante { right: 16px; bottom: 16px; width: 52px; height: 52px; }
  .wa-flotante svg { width: 27px; height: 27px; }
}

.grupo-botones {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
}

/* Enlace con flecha */
.enlace-flecha {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-family: var(--font-display);
  font-size: 15px;
  font-weight: 600;
  color: var(--carbon);
  transition: gap var(--trans), color var(--trans);
}
.enlace-flecha::after {
  content: "→";
  color: var(--oro-oscuro);
  transition: transform var(--trans);
}
.enlace-flecha:hover { gap: 12px; color: var(--oro-oscuro); }

.seccion-oscura .enlace-flecha { color: var(--blanco); }
.seccion-oscura .enlace-flecha::after { color: var(--oro); }
.seccion-oscura .enlace-flecha:hover { color: var(--oro); }

/* --------------------------------------------------------------------------
   6. HEADER
   -------------------------------------------------------------------------- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  display: flex;
  align-items: center;
  min-height: var(--header-h);
  background: var(--carbon);
  border-bottom: 1px solid var(--borde-oscuro);
  transition: min-height var(--trans), background-color var(--trans);
}

.site-header.compacto {
  min-height: 68px;
  background: rgba(28, 37, 44, 0.96);
  backdrop-filter: blur(10px);
  box-shadow: 0 6px 26px rgba(0, 0, 0, 0.22);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 28px;
  width: 100%;
}

.logo-enlace {
  display: flex;
  align-items: center;
  flex-shrink: 0;
}

.logo-img {
  width: auto;
  height: 46px;
  transition: height var(--trans);
}
.site-header.compacto .logo-img { height: 38px; }

.nav-principal { margin-left: auto; }

.nav-lista {
  display: flex;
  align-items: center;
  gap: 4px;
  list-style: none;
  margin: 0;
  padding: 0;
}

/* Ítem de menú visible solo en el menú móvil */
.nav-solo-movil { display: none; }

/* Etiqueta FAQ: corta en PC, completa en móvil */
.nav-faq-movil { display: none; }

.nav-lista li { margin: 0; }

.nav-enlace {
  display: block;
  padding: 10px 13px;
  font-family: var(--font-display);
  font-size: 14.5px;
  font-weight: 500;
  color: rgba(255, 255, 255, 0.82);
  border-radius: 8px;
  position: relative;
  transition: color var(--trans), background-color var(--trans);
}

.nav-enlace:hover { color: var(--blanco); background: rgba(255, 255, 255, 0.07); }

.nav-enlace.activo { color: var(--oro); font-weight: 600; }

.nav-enlace.activo::after {
  content: "";
  position: absolute;
  left: 13px;
  right: 13px;
  bottom: 3px;
  height: 2px;
  background: var(--oro);
  border-radius: 2px;
}

.header-cta { flex-shrink: 0; }

/* La CTA duplicada solo existe dentro del menú móvil */
.nav-cta-movil { display: none; }

/* Botón hamburguesa */
.nav-toggle {
  display: none;
  align-items: center;
  justify-content: center;
  width: 46px;
  height: 46px;
  padding: 0;
  background: rgba(255, 255, 255, 0.08);
  border: 0;
  border-radius: 12px;
  cursor: pointer;
}

.nav-toggle-barras {
  display: flex;
  flex-direction: column;
  gap: 5px;
  width: 22px;
}

.nav-toggle-barras span {
  display: block;
  height: 2px;
  width: 100%;
  background: var(--blanco);
  border-radius: 2px;
  transition: transform var(--trans), opacity var(--trans);
}

.nav-toggle[aria-expanded="true"] .nav-toggle-barras span:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}
.nav-toggle[aria-expanded="true"] .nav-toggle-barras span:nth-child(2) { opacity: 0; }
.nav-toggle[aria-expanded="true"] .nav-toggle-barras span:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}

/* --------------------------------------------------------------------------
   7. HERO
   -------------------------------------------------------------------------- */
.hero {
  position: relative;
  display: flex;
  align-items: center;
  padding-top: 96px;
  padding-bottom: 96px;
  background: var(--carbon);
  color: var(--texto-claro);
  overflow: hidden;
}

.hero::before {
  content: "";
  position: absolute;
  top: -180px;
  right: -220px;
  width: 720px;
  height: 720px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(245, 190, 11, 0.16) 0%, transparent 68%);
  pointer-events: none;
}

.hero-inner {
  display: grid;
  grid-template-columns: 1.08fr 0.92fr;
  gap: 72px;
  align-items: center;
  width: 100%;
  position: relative;
  z-index: 1;
}

.hero-texto { display: flex; flex-direction: column; }

.hero h1 {
  color: var(--blanco);
  font-size: 66px;
  margin-bottom: 24px;
}

.hero-entradilla {
  font-size: 20px;
  line-height: 1.68;
  color: var(--texto-claro);
  max-width: 540px;
  margin-bottom: 34px;
}

/* Niveles educativos destacados en el hero */
.hero-niveles {
  list-style: none;
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin: 0 0 34px;
  max-width: 560px;
}

.hero-niveles li {
  display: inline-flex;
  align-items: center;
  padding: 9px 18px;
  font-family: var(--font-display);
  font-size: 15px;
  font-weight: 600;
  color: var(--blanco);
  background: rgba(245, 190, 11, 0.14);
  border: 1.5px solid rgba(245, 190, 11, 0.55);
  border-radius: 100px;
  transition: transform var(--trans), background var(--trans), border-color var(--trans);
}

.hero-niveles li:hover {
  transform: translateY(-3px);
  background: rgba(245, 190, 11, 0.26);
  border-color: var(--oro);
}

/* Marco doble dorado que evoca las dos cadenas de la hélice */
.marco-helice {
  position: relative;
  display: flex;
}

.marco-helice::before {
  content: "";
  position: absolute;
  top: 22px;
  left: 22px;
  right: -22px;
  bottom: -22px;
  border: 2px solid var(--oro);
  border-radius: var(--radio-lg);
  pointer-events: none;
}

.marco-helice img {
  width: 100%;
  border-radius: var(--radio-lg);
  position: relative;
  z-index: 1;
  object-fit: cover;
}

/* Hero interior (páginas secundarias) */
.hero-pagina {
  display: flex;
  flex-direction: column;
  justify-content: center;
  padding-top: 84px;
  padding-bottom: 84px;
  background: var(--carbon);
  color: var(--texto-claro);
  position: relative;
  overflow: hidden;
}

.hero-pagina::after {
  content: "";
  position: absolute;
  top: 50%;
  right: 4%;
  width: 260px;
  height: 500px;
  transform: translateY(-50%);
  background: url("../img/brand/isotipo-helice-gold.png") no-repeat center / contain;
  opacity: 0.07;
  pointer-events: none;
}

.hero-pagina-inner {
  position: relative;
  z-index: 1;
  max-width: var(--ancho-max);
}
/* El texto del hero interior arranca en el borde del contenedor,
   alineado con el contenido de las secciones de abajo; solo se limita
   el ancho de lectura de cada elemento. */
.hero-pagina-inner > * { max-width: 780px; }

.hero-pagina h1 { color: var(--blanco); font-size: 54px; margin-bottom: 20px; }

.hero-pagina .entradilla { color: var(--texto-claro); }

/* Migas de pan */
.migas {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  list-style: none;
  margin: 0 0 22px;
  padding: 0;
  font-size: 14px;
  color: rgba(255, 255, 255, 0.55);
}
.migas li { margin: 0; }
.migas li + li::before { content: "/"; margin-right: 8px; color: rgba(255, 255, 255, 0.3); }
.migas a:hover { color: var(--oro); }

/* --------------------------------------------------------------------------
   8. FRANJA DE DATOS
   -------------------------------------------------------------------------- */
.franja-datos {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 2px;
  background: var(--borde-oscuro);
  border-radius: var(--radio);
  overflow: hidden;
}

.dato {
  display: flex;
  flex-direction: column;
  gap: 6px;
  padding: 34px 28px;
  background: var(--carbon-suave);
}

.dato-numero {
  font-family: var(--font-display);
  font-size: 40px;
  font-weight: 700;
  line-height: 1;
  color: var(--oro);
  letter-spacing: -0.03em;
}

.dato-texto {
  font-size: 14.5px;
  line-height: 1.5;
  color: var(--texto-claro);
}

/* --------------------------------------------------------------------------
   9. REJILLAS Y TARJETAS
   -------------------------------------------------------------------------- */
.rejilla-2 { display: grid; grid-template-columns: repeat(2, 1fr); gap: 32px; }
.rejilla-3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 28px; }
.rejilla-4 { display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px; }

/* Bloque de dos columnas texto + imagen */
.bloque-dividido {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 72px;
  align-items: center;
}

.bloque-dividido.invertido .bloque-media { order: -1; }

.bloque-texto { display: flex; flex-direction: column; }
.bloque-media { display: flex; }

.bloque-media img {
  width: 100%;
  border-radius: var(--radio-lg);
  object-fit: cover;
  box-shadow: var(--sombra);
}

/* Tarjeta base */
.tarjeta {
  display: flex;
  flex-direction: column;
  padding: 34px 30px;
  background: var(--blanco);
  border: 1px solid var(--borde);
  border-radius: var(--radio);
  transition: transform var(--trans), box-shadow var(--trans), border-color var(--trans);
}

.tarjeta:hover {
  transform: translateY(-6px);
  box-shadow: var(--sombra);
  border-color: rgba(245, 190, 11, 0.5);
}

.tarjeta h3 { font-size: 21px; margin-bottom: 12px; }
.tarjeta p { font-size: 16px; color: var(--texto-suave); }

/* Tarjeta numerada tipo "nivel" */
.tarjeta-pilar {
  display: flex;
  flex-direction: column;
  padding: 38px 32px;
  background: var(--blanco);
  border: 1px solid var(--borde);
  border-radius: var(--radio);
  position: relative;
  overflow: hidden;
  transition: transform var(--trans), box-shadow var(--trans);
}

.tarjeta-pilar::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 4px;
  background: var(--oro);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform var(--trans);
}

.tarjeta-pilar:hover { transform: translateY(-6px); box-shadow: var(--sombra); }
.tarjeta-pilar:hover::before { transform: scaleX(1); }

.pilar-numero {
  font-family: var(--font-display);
  font-size: 46px;
  font-weight: 700;
  line-height: 1;
  color: transparent;
  -webkit-text-stroke: 1.5px var(--oro);
  margin-bottom: 20px;
  letter-spacing: -0.03em;
}

.tarjeta-pilar h3 { font-size: 20px; margin-bottom: 10px; }
.tarjeta-pilar p { font-size: 15.5px; color: var(--texto-suave); margin: 0; }

/* Tarjeta oscura */
.tarjeta-oscura {
  display: flex;
  flex-direction: column;
  padding: 34px 30px;
  background: var(--carbon-suave);
  border: 1px solid var(--borde-oscuro);
  border-radius: var(--radio);
  transition: transform var(--trans), border-color var(--trans);
}

.tarjeta-oscura:hover { transform: translateY(-6px); border-color: rgba(245, 190, 11, 0.45); }
.tarjeta-oscura h3 { color: var(--blanco); font-size: 20px; margin-bottom: 10px; }
.tarjeta-oscura p { font-size: 15.5px; color: var(--texto-claro); margin: 0; }

/* Tarjeta de nivel educativo */
.tarjeta-nivel {
  display: flex;
  flex-direction: column;
  background: var(--blanco);
  border: 1px solid var(--borde);
  border-radius: var(--radio);
  overflow: hidden;
  transition: transform var(--trans), box-shadow var(--trans);
}

.tarjeta-nivel:hover { transform: translateY(-6px); box-shadow: var(--sombra); }

.tarjeta-nivel-img {
  width: 100%;
  height: 220px;
  object-fit: cover;
}

.tarjeta-nivel-cuerpo {
  display: flex;
  flex-direction: column;
  padding: 30px 28px;
  flex-grow: 1;
}

.etiqueta-edad {
  display: inline-flex;
  align-self: flex-start;
  padding: 5px 14px;
  margin-bottom: 14px;
  font-family: var(--font-display);
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.09em;
  text-transform: uppercase;
  color: var(--carbon);
  background: rgba(245, 190, 11, 0.28);
  border-radius: 100px;
}

.etiqueta-proximamente {
  display: inline-block;
  vertical-align: middle;
  margin-left: 10px;
  padding: 5px 14px;
  font-family: var(--font-display);
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--carbon);
  background: var(--oro);
  border-radius: 100px;
  white-space: nowrap;
}

.tarjeta-nivel h3 { font-size: 23px; margin-bottom: 10px; }
.tarjeta-nivel p { font-size: 15.5px; color: var(--texto-suave); }

.horario-nivel {
  display: flex;
  flex-direction: column;
  gap: 4px;
  margin-top: auto;
  padding-top: 20px;
  border-top: 1px solid var(--borde);
  font-size: 14.5px;
  color: var(--texto-suave);
}

.horario-nivel strong { color: var(--carbon); font-family: var(--font-display); }

/* Tarjeta de valor */
.tarjeta-valor {
  display: flex;
  flex-direction: column;
  padding: 32px 28px;
  background: var(--blanco);
  border-left: 4px solid var(--oro);
  border-radius: 0 var(--radio) var(--radio) 0;
  box-shadow: var(--sombra-sm);
  transition: transform var(--trans), box-shadow var(--trans);
}

.tarjeta-valor:hover { transform: translateX(6px); box-shadow: var(--sombra); }

.tarjeta-valor h3 {
  font-size: 17px;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--oro-oscuro);
  margin-bottom: 10px;
}

.tarjeta-valor p { font-size: 16px; color: var(--texto-suave); margin: 0; }

/* --------------------------------------------------------------------------
   10. LISTAS CON HÉLICE
   -------------------------------------------------------------------------- */
.lista-helice {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 14px 40px;
  list-style: none;
  margin: 0;
  padding: 0;
}

.lista-helice li {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  margin: 0;
  font-size: 16.5px;
  line-height: 1.6;
}

.lista-helice li::before {
  content: "";
  flex-shrink: 0;
  width: 18px;
  height: 18px;
  margin-top: 5px;
  background: url("../img/brand/isotipo-helice-gold.png") no-repeat center / contain;
}

.lista-helice.una-columna { grid-template-columns: 1fr; }

/* Lista de comprobación */
.lista-check {
  display: flex;
  flex-direction: column;
  gap: 12px;
  list-style: none;
  margin: 0;
  padding: 0;
}

.lista-check li {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  margin: 0;
  font-size: 16.5px;
}

.lista-check li::before {
  content: "✓";
  flex-shrink: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  width: 24px;
  height: 24px;
  margin-top: 3px;
  font-size: 13px;
  font-weight: 700;
  color: var(--carbon);
  background: var(--oro);
  border-radius: 50%;
}

/* --------------------------------------------------------------------------
   11. SEPARADOR DE HÉLICE
   -------------------------------------------------------------------------- */
.separador-helice {
  width: 100%;
  height: 40px;
  background: url("../img/brand/helix-divider.svg") repeat-x center / 240px 40px;
  opacity: 0.75;
}

/* --------------------------------------------------------------------------
   12. EQUIPO
   -------------------------------------------------------------------------- */
.rejilla-equipo {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 28px;
}

.tarjeta-persona {
  display: flex;
  flex-direction: column;
  background: var(--blanco);
  border: 1px solid var(--borde);
  border-radius: var(--radio);
  overflow: hidden;
  transition: transform var(--trans), box-shadow var(--trans);
}

.tarjeta-persona:hover { transform: translateY(-6px); box-shadow: var(--sombra); }

.persona-foto {
  width: 100%;
  height: 260px;
  object-fit: cover;
  object-position: center 30%;
  background: var(--crema-oscura);
}

.persona-cuerpo {
  display: flex;
  flex-direction: column;
  padding: 24px 22px;
  flex-grow: 1;
}

.persona-cuerpo h3 { font-size: 18px; margin-bottom: 6px; }

.persona-rol {
  font-family: var(--font-display);
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.09em;
  text-transform: uppercase;
  color: var(--oro-oscuro);
  margin-bottom: 14px;
}

.persona-cita {
  font-size: 15px;
  font-style: italic;
  line-height: 1.6;
  color: var(--texto-suave);
  margin-bottom: 16px;
}

.persona-meta {
  margin-top: auto;
  padding-top: 16px;
  border-top: 1px solid var(--borde);
  font-size: 13.5px;
  color: var(--texto-suave);
}

.persona-meta strong { color: var(--carbon); }

.persona-estudios {
  margin: 10px 0 0;
  padding-left: 18px;
  font-size: 13.5px;
  line-height: 1.55;
  color: var(--texto-suave);
}
.persona-estudios li { margin-bottom: 4px; }

/* --------------------------------------------------------------------------
   13. ACORDEÓN / FAQ
   -------------------------------------------------------------------------- */
.acordeon {
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.acordeon-item {
  background: var(--blanco);
  border: 1px solid var(--borde);
  border-radius: var(--radio-sm);
  overflow: hidden;
  transition: border-color var(--trans), box-shadow var(--trans);
}

.acordeon-item.abierto {
  border-color: rgba(245, 190, 11, 0.65);
  box-shadow: var(--sombra-sm);
}

.acordeon-boton {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  width: 100%;
  padding: 22px 26px;
  background: transparent;
  border: 0;
  text-align: left;
  cursor: pointer;
  font-family: var(--font-display);
  font-size: 17px;
  font-weight: 600;
  color: var(--carbon);
  transition: color var(--trans);
}

.acordeon-boton:hover { color: var(--oro-oscuro); }

.acordeon-icono {
  flex-shrink: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  width: 30px;
  height: 30px;
  font-size: 19px;
  font-weight: 400;
  color: var(--carbon);
  background: rgba(245, 190, 11, 0.22);
  border-radius: 50%;
  transition: transform var(--trans), background-color var(--trans);
}

.acordeon-item.abierto .acordeon-icono {
  transform: rotate(45deg);
  background: var(--oro);
}

.acordeon-panel {
  max-height: 0;
  overflow: hidden;
  transition: max-height var(--trans);
}

.acordeon-panel-inner {
  padding: 0 26px 24px;
  font-size: 16.5px;
  color: var(--texto-suave);
}

/* --------------------------------------------------------------------------
   14. GALERÍA
   -------------------------------------------------------------------------- */
.rejilla-galeria {
  column-count: 4;
  column-gap: 18px;
}

.galeria-item {
  display: block;
  width: 100%;
  margin: 0 0 18px;
  break-inside: avoid;
  position: relative;
  border-radius: var(--radio-sm);
  overflow: hidden;
  background: var(--crema-oscura);
  cursor: pointer;
  border: 0;
  padding: 0;
}

.galeria-item img {
  width: 100%;
  height: auto;
  display: block;
  transition: transform 500ms cubic-bezier(0.22, 0.61, 0.36, 1);
}

.galeria-item::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, transparent 55%, rgba(28, 37, 44, 0.55) 100%);
  opacity: 0;
  transition: opacity var(--trans);
}

.galeria-item:hover img { transform: scale(1.06); }
.galeria-item:hover::after { opacity: 1; }


/* Lightbox */
.lightbox {
  position: fixed;
  inset: 0;
  z-index: 200;
  display: none;
  align-items: center;
  justify-content: center;
  padding: 40px;
  background: rgba(20, 26, 32, 0.94);
}

.lightbox.visible { display: flex; }

.lightbox img {
  max-width: 100%;
  max-height: 86vh;
  border-radius: var(--radio-sm);
  object-fit: contain;
}

.lightbox-cerrar,
.lightbox-nav {
  position: absolute;
  display: flex;
  align-items: center;
  justify-content: center;
  width: 52px;
  height: 52px;
  background: rgba(255, 255, 255, 0.12);
  border: 0;
  border-radius: 50%;
  color: var(--blanco);
  font-size: 24px;
  cursor: pointer;
  transition: background-color var(--trans);
}

.lightbox-cerrar:hover,
.lightbox-nav:hover { background: var(--oro); color: var(--carbon); }

.lightbox-cerrar { top: 28px; right: 28px; }
.lightbox-prev { left: 28px; top: 50%; transform: translateY(-50%); }
.lightbox-next { right: 28px; top: 50%; transform: translateY(-50%); }

/* --------------------------------------------------------------------------
   15. ALIANZAS
   -------------------------------------------------------------------------- */
.tarjeta-alianza {
  display: flex;
  flex-direction: column;
  padding: 40px 36px;
  background: var(--blanco);
  border: 1px solid var(--borde);
  border-radius: var(--radio);
  transition: transform var(--trans), box-shadow var(--trans);
}

.tarjeta-alianza:hover { transform: translateY(-6px); box-shadow: var(--sombra); }

.alianza-etiqueta {
  display: inline-flex;
  align-self: flex-start;
  padding: 6px 16px;
  margin-bottom: 18px;
  font-family: var(--font-display);
  font-size: 11.5px;
  font-weight: 600;
  letter-spacing: 0.11em;
  text-transform: uppercase;
  color: var(--carbon);
  background: var(--oro);
  border-radius: 100px;
}

/* --------------------------------------------------------------------------
   16. CONTACTO
   -------------------------------------------------------------------------- */
.rejilla-contacto {
  display: grid;
  grid-template-columns: 0.85fr 1.15fr;
  gap: 60px;
  align-items: start;
}

.info-contacto {
  display: flex;
  flex-direction: column;
  gap: 26px;
}

.dato-contacto {
  display: flex;
  align-items: flex-start;
  gap: 16px;
}

.dato-contacto-icono {
  flex-shrink: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  width: 46px;
  height: 46px;
  background: rgba(245, 190, 11, 0.2);
  border-radius: 12px;
  color: var(--oro-oscuro);
}

.dato-contacto-texto { display: flex; flex-direction: column; gap: 2px; }

.dato-contacto-titulo {
  font-family: var(--font-display);
  font-size: 12.5px;
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--texto-suave);
}

.dato-contacto-valor { font-size: 17px; font-weight: 600; color: var(--carbon); }
.dato-contacto-valor a:hover { color: var(--oro-oscuro); }

/* Formulario */
.formulario {
  display: flex;
  flex-direction: column;
  gap: 20px;
  padding: 40px 38px;
  background: var(--blanco);
  border: 1px solid var(--borde);
  border-radius: var(--radio);
  box-shadow: var(--sombra-sm);
}

.campo-fila {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 20px;
}

.campo { display: flex; flex-direction: column; gap: 8px; }

.campo label {
  font-family: var(--font-display);
  font-size: 13.5px;
  font-weight: 600;
  color: var(--carbon);
}

.campo input,
.campo select,
.campo textarea {
  width: 100%;
  padding: 14px 16px;
  font-family: var(--font-texto);
  font-size: 16px;
  color: var(--texto);
  background: var(--crema);
  border: 1.5px solid var(--borde);
  border-radius: var(--radio-sm);
  transition: border-color var(--trans), background-color var(--trans);
}

.campo input:focus,
.campo select:focus,
.campo textarea:focus {
  outline: none;
  border-color: var(--oro);
  background: var(--blanco);
}

.campo textarea { resize: vertical; min-height: 130px; }

.nota-form { font-size: 13.5px; color: var(--texto-suave); margin: 0; }

.mensaje-form {
  display: none;
  padding: 16px 20px;
  border-radius: var(--radio-sm);
  font-size: 15.5px;
  background: rgba(245, 190, 11, 0.16);
  border: 1px solid var(--oro);
  color: var(--carbon);
}
.mensaje-form.visible { display: block; }

/* Mapa */
.mapa-contenedor {
  width: 100%;
  height: 420px;
  border-radius: var(--radio);
  overflow: hidden;
  border: 1px solid var(--borde);
}
.mapa-contenedor iframe { width: 100%; height: 100%; border: 0; display: block; }

/* --------------------------------------------------------------------------
   17. BANDA CTA
   -------------------------------------------------------------------------- */
.banda-cta {
  display: flex;
  padding-top: 86px;
  padding-bottom: 86px;
  background: var(--oro);
  position: relative;
  overflow: hidden;
}

.banda-cta::after {
  content: "";
  position: absolute;
  top: 50%;
  right: 5%;
  width: 240px;
  height: 470px;
  transform: translateY(-50%);
  background: url("../img/brand/isotipo-helice-gold.png") no-repeat center / contain;
  opacity: 0.16;
  filter: brightness(0.35);
  pointer-events: none;
}

.banda-cta-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 44px;
  width: 100%;
  position: relative;
  z-index: 1;
}

.banda-cta h2 { color: var(--carbon); font-size: 40px; margin-bottom: 10px; }
.banda-cta p { color: rgba(28, 37, 44, 0.82); font-size: 18px; margin: 0; max-width: 560px; }

/* --------------------------------------------------------------------------
   18. FOOTER
   -------------------------------------------------------------------------- */
.site-footer {
  display: flex;
  flex-direction: column;
  padding-top: 76px;
  background: var(--carbon-profundo);
  color: var(--texto-claro);
}

.footer-superior {
  display: grid;
  grid-template-columns: 1.5fr 1fr 1fr 1.2fr;
  gap: 48px;
  padding-bottom: 56px;
}

.footer-marca { display: flex; flex-direction: column; gap: 20px; }

.footer-logo { width: 190px; height: auto; }

.footer-marca p { font-size: 15.5px; color: var(--texto-claro); margin: 0; max-width: 300px; }

.footer-nombre {
  font-family: var(--font-display);
  font-size: 20px !important;
  font-weight: 700;
  color: var(--blanco) !important;
  margin-bottom: -8px !important;
}

.footer-botones { display: flex; flex-wrap: wrap; gap: 10px; }

.footer-columna { display: flex; flex-direction: column; }

.footer-titulo {
  font-family: var(--font-display);
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--oro);
  margin-bottom: 20px;
}

.footer-lista { display: flex; flex-direction: column; gap: 11px; list-style: none; margin: 0; padding: 0; }
.footer-lista li { margin: 0; }
.footer-lista a { font-size: 15.5px; color: var(--texto-claro); transition: color var(--trans); }
.footer-lista a:hover { color: var(--oro); }

.footer-contacto { display: flex; flex-direction: column; gap: 12px; font-size: 15.5px; }
.footer-contacto a:hover { color: var(--oro); }

.redes { display: flex; gap: 12px; margin-top: 6px; }

.red-social {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 42px;
  height: 42px;
  background: rgba(255, 255, 255, 0.08);
  border-radius: 50%;
  color: var(--blanco);
  transition: background-color var(--trans), color var(--trans), transform var(--trans);
}

.red-social:hover { background: var(--oro); color: var(--carbon); transform: translateY(-3px); }

.footer-inferior {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  padding-top: 26px;
  padding-bottom: 26px;
  border-top: 1px solid var(--borde-oscuro);
  font-size: 14px;
  color: rgba(255, 255, 255, 0.5);
}

.footer-inferior a:hover { color: var(--oro); }

/* --------------------------------------------------------------------------
   19. ANIMACIÓN AL HACER SCROLL
   -------------------------------------------------------------------------- */
.revelar {
  opacity: 0;
  transform: translateY(26px);
  transition: opacity 620ms ease, transform 620ms cubic-bezier(0.22, 0.61, 0.36, 1);
}

.revelar.visible { opacity: 1; transform: translateY(0); }

@media (prefers-reduced-motion: reduce) {
  * { animation-duration: 0.01ms !important; transition-duration: 0.01ms !important; }
  html { scroll-behavior: auto; }
  .revelar { opacity: 1; transform: none; }
}

/* --------------------------------------------------------------------------
   20. UTILIDADES
   -------------------------------------------------------------------------- */
.solo-lectores {
  position: absolute;
  width: 1px; height: 1px;
  padding: 0; margin: -1px;
  overflow: hidden;
  clip: rect(0 0 0 0);
  white-space: nowrap;
  border: 0;
}

.mt-16 { margin-top: 16px; }
.mt-24 { margin-top: 24px; }
.mt-32 { margin-top: 32px; }
.mt-48 { margin-top: 48px; }
.mt-64 { margin-top: 64px; }

/* ==========================================================================
   21. TABLET  (≤ 1024px)
   ========================================================================== */
@media (max-width: 1024px) {
  h1 { font-size: 46px; }
  h2 { font-size: 36px; }
  h3 { font-size: 23px; }

  .contenedor,
  .contenedor-ancho { padding-left: 26px; padding-right: 26px; }

  .seccion { padding-top: 80px; padding-bottom: 80px; }
  .seccion-compacta { padding-top: 56px; padding-bottom: 56px; }

  /* Navegación pasa a menú desplegable */
  .nav-toggle { display: flex; }
  .header-cta { display: none; }

  .nav-principal {
    position: fixed;
    top: var(--header-h);
    left: 0;
    right: 0;
    bottom: 0;
    margin-left: 0;
    padding: 26px;
    background: var(--carbon);
    overflow-y: auto;
    transform: translateX(100%);
    visibility: hidden;
    transition: transform var(--trans), visibility var(--trans);
  }

  .nav-principal.abierto { transform: translateX(0); visibility: visible; }

  /* El backdrop-filter del header compacto convierte al header en el bloque
     contenedor del menú fixed y lo rompe. Se desactiva en móvil y se alinea
     el menú a la altura del header compacto. */
  .site-header.compacto { backdrop-filter: none; -webkit-backdrop-filter: none; }
  .site-header.compacto .nav-principal { top: 68px; }

  .nav-lista { flex-direction: column; align-items: stretch; gap: 4px; }
  .nav-solo-movil { display: block; }
  .nav-faq-pc { display: none; }
  .nav-faq-movil { display: inline; }

  .nav-enlace {
    padding: 16px 18px;
    font-size: 18px;
    border-radius: 12px;
    border-bottom: 1px solid var(--borde-oscuro);
  }

  .nav-enlace.activo::after { display: none; }

  .nav-cta-movil { margin-top: 22px; display: flex; }
  .nav-cta-movil .btn { width: 100%; }

  .hero { padding-top: 64px; padding-bottom: 64px; }
  .hero h1 { font-size: 46px; }
  .hero-inner { grid-template-columns: 1fr; gap: 48px; }
  .hero-entradilla { font-size: 18px; max-width: none; }
  .hero-niveles { gap: 8px; }
  .hero-niveles li { font-size: 13.5px; padding: 8px 15px; }

  .hero-pagina { padding-top: 62px; padding-bottom: 62px; }
  .hero-pagina h1 { font-size: 40px; }
  .hero-pagina::after { display: none; }

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

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

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

  .bloque-dividido { grid-template-columns: 1fr; gap: 44px; }
  .bloque-dividido.invertido .bloque-media { order: 0; }

  .rejilla-contacto { grid-template-columns: 1fr; gap: 44px; }

  .rejilla-galeria { column-count: 3; }

  .banda-cta-inner { flex-direction: column; align-items: flex-start; gap: 28px; }
  .banda-cta h2 { font-size: 33px; }
  .banda-cta::after { display: none; }

  .footer-superior { grid-template-columns: repeat(2, 1fr); gap: 40px; }

  .seccion-oscura::after { display: none; }

  .encabezado-seccion { margin-bottom: 44px; }
}

/* ==========================================================================
   22. MÓVIL  (≤ 767px)
   ========================================================================== */
@media (max-width: 767px) {
  body { font-size: 16px; }

  h1 { font-size: 34px; }
  h2 { font-size: 28px; }
  h3 { font-size: 21px; }

  .contenedor,
  .contenedor-ancho { padding-left: 20px; padding-right: 20px; }

  .seccion { padding-top: 62px; padding-bottom: 62px; }
  .seccion-compacta { padding-top: 44px; padding-bottom: 44px; }

  .entradilla { font-size: 17px; }

  .hero { padding-top: 48px; padding-bottom: 52px; }
  .hero h1 { font-size: 34px; }
  .hero-entradilla { font-size: 17px; margin-bottom: 26px; }
  .hero-inner { gap: 40px; }

  .marco-helice::before { top: 14px; left: 14px; right: -14px; bottom: -14px; }

  .hero-pagina { padding-top: 46px; padding-bottom: 46px; }
  .hero-pagina h1 { font-size: 30px; }

  .grupo-botones { flex-direction: column; align-items: stretch; }
  .grupo-botones .btn { width: 100%; }

  .franja-datos { grid-template-columns: 1fr; }
  .dato { padding: 24px 22px; }
  .dato-numero { font-size: 34px; }

  .rejilla-2,
  .rejilla-3,
  .rejilla-4,
  .rejilla-equipo { grid-template-columns: 1fr; gap: 20px; }

  .rejilla-galeria { column-count: 2; column-gap: 12px; }
  .rejilla-galeria .galeria-item { margin-bottom: 12px; }

  .lista-helice { grid-template-columns: 1fr; }

  .tarjeta,
  .tarjeta-pilar,
  .tarjeta-oscura,
  .tarjeta-alianza { padding: 26px 22px; }

  .formulario { padding: 26px 22px; }
  .campo-fila { grid-template-columns: 1fr; gap: 20px; }

  .banda-cta { padding-top: 56px; padding-bottom: 56px; }
  .banda-cta h2 { font-size: 27px; }
  .banda-cta p { font-size: 16.5px; }

  .footer-superior { grid-template-columns: 1fr; gap: 34px; padding-bottom: 40px; }
  .site-footer { padding-top: 54px; }
  .footer-inferior { flex-direction: column; align-items: flex-start; gap: 12px; text-align: left; }

  .persona-foto { height: 300px; }

  .lightbox { padding: 16px; }
  .lightbox-cerrar { top: 14px; right: 14px; }
  .lightbox-prev { left: 8px; }
  .lightbox-next { right: 8px; }

  .mapa-contenedor { height: 320px; }

  .acordeon-boton { padding: 18px 20px; font-size: 16px; }
  .acordeon-panel-inner { padding: 0 20px 20px; font-size: 15.5px; }
}