/* ============================================================================
   REDXUS · Landing page
   Hoja de estilos principal.

   Paleta, tipografía y recursos tomados de la identidad visible en
   https://redxus.com/  (primario #4AB5B9 · tinta #101824 · texto #6D6D6D ·
   titulares Inter · textos Manrope · contenedor 1330px).

   Índice
     01. Variables
     02. Reset y base
     03. Utilidades y tipografía
     04. Botones
     05. Cabecera y navegación
     06. Hero + VSL
     07. Problemas
     08. Módulos
     09. Seguridad
     10. Testimonios
     11. Pasos y oferta
     12. Preguntas frecuentes
     13. Cierre
     14. Pie de página
     15. Animaciones de entrada
     16. Accesibilidad
     17. Responsive
   ========================================================================= */


/* ==========================================================================
   01. VARIABLES
   ========================================================================== */

:root {
    /* --- Color de marca --- */
    --color-primary: #4AB5B9;
    --color-primary-dark: #39A0A4;
    --color-primary-deep: #2E8084;
    --color-primary-soft: rgba(74, 181, 185, 0.10);
    --color-primary-tint: rgba(74, 181, 185, 0.05);
    --color-primary-glow: rgba(74, 181, 185, 0.22);

    /* --- Texto y superficies --- */
    --color-ink: #101824;
    --color-ink-soft: #182030;
    --color-text: #101824;
    --color-text-secondary: #5F6B76;
    --color-text-muted: #8A95A1;

    --color-surface: #FFFFFF;
    --color-surface-soft: #F5F9FA;
    --color-surface-muted: #EDF3F4;

    --color-border: #E4EBEC;
    --color-border-primary: rgba(74, 181, 185, 0.22);

    /* --- Tipografía --- */
    --font-heading: "Inter", "Segoe UI", system-ui, -apple-system, "Helvetica Neue", Arial, sans-serif;
    --font-body: "Manrope", "Inter", "Segoe UI", system-ui, -apple-system, "Helvetica Neue", Arial, sans-serif;

    --fs-display: clamp(2.1rem, 1.35rem + 2.9vw, 3.35rem);
    --fs-h2: clamp(1.7rem, 1.25rem + 1.85vw, 2.6rem);
    --fs-h3: clamp(1.15rem, 1.05rem + 0.4vw, 1.4rem);
    --fs-lead: clamp(1.02rem, 0.96rem + 0.3vw, 1.19rem);
    --fs-body: 1rem;
    --fs-small: 0.875rem;
    --fs-tiny: 0.8125rem;

    /* --- Composición --- */
    --container-max: 1200px;
    --container-pad: clamp(1.15rem, 4vw, 2.5rem);
    --section-spacing: clamp(4rem, 8vw, 7rem);
    --radius-sm: 10px;
    --radius-md: 16px;
    --radius-lg: 24px;
    --radius-pill: 999px;

    --shadow-soft: 0 18px 44px -26px rgba(16, 24, 36, 0.35);
    --shadow-card: 0 24px 60px -34px rgba(16, 24, 36, 0.42);

    --transition-base: 260ms cubic-bezier(0.4, 0, 0.2, 1);

    --header-height: 76px;
}


/* ==========================================================================
   02. RESET Y BASE
   ========================================================================== */

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

* {
    margin: 0;
}

html {
    -webkit-text-size-adjust: 100%;
    scroll-padding-top: calc(var(--header-height) + 16px);
}

@media (prefers-reduced-motion: no-preference) {
    html {
        scroll-behavior: smooth;
    }
}

body {
    font-family: var(--font-body);
    font-size: var(--fs-body);
    line-height: 1.75;
    color: var(--color-text);
    background-color: var(--color-surface);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    overflow-x: clip;
}

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

img {
    height: auto;
}

button {
    font: inherit;
    color: inherit;
    background: none;
    border: 0;
    cursor: pointer;
}

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

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


/* ==========================================================================
   03. UTILIDADES Y TIPOGRAFÍA
   ========================================================================== */

.container {
    width: 100%;
    max-width: calc(var(--container-max) + (var(--container-pad) * 2));
    margin-inline: auto;
    padding-inline: var(--container-pad);
}

.section {
    padding-block: var(--section-spacing);
}

.section__head {
    max-width: 720px;
    margin-inline: auto;
    margin-bottom: clamp(2.5rem, 5vw, 4rem);
    text-align: center;
}

.section__title {
    font-family: var(--font-heading);
    font-size: var(--fs-h2);
    font-weight: 600;
    line-height: 1.18;
    letter-spacing: -0.022em;
    text-wrap: balance;
    color: var(--color-ink);
}

.section__lead {
    margin-top: 1.25rem;
    font-size: var(--fs-lead);
    line-height: 1.75;
    color: var(--color-text-secondary);
    max-width: 58ch;
}

.section__cta {
    margin-top: clamp(2.75rem, 5vw, 4rem);
    display: flex;
    justify-content: center;
}

.eyebrow {
    display: inline-block;
    margin-bottom: 1rem;
    font-family: var(--font-heading);
    font-size: var(--fs-tiny);
    font-weight: 600;
    letter-spacing: 0.14em;
    text-transform: uppercase;
    color: var(--color-primary-deep);
}

.eyebrow::after {
    content: "";
    display: block;
    width: 34px;
    height: 2px;
    margin-top: 0.7rem;
    border-radius: 2px;
    background-color: var(--color-primary);
}

.section__head .eyebrow {
    text-align: center;
}

.section__head .eyebrow::after {
    margin-inline: auto;
}

/* Fondos alternos para separar secciones sin recuadros */
.section--modulos,
.section--testimonios,
.section--pasos {
    background-color: var(--color-surface-soft);
}

/* Separador entre dos secciones consecutivas del mismo tono */
.section--pasos {
    border-top: 1px solid var(--color-border-primary);
}


/* ==========================================================================
   04. BOTONES
   ========================================================================== */

.btn {
    --btn-bg: var(--color-primary);
    --btn-fg: #FFFFFF;
    --btn-border: var(--color-primary);

    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.6rem;
    min-height: 48px;
    padding: 0.8rem 1.5rem;
    border: 1px solid var(--btn-border);
    border-radius: var(--radius-sm);
    background-color: var(--btn-bg);
    color: var(--btn-fg);
    font-family: var(--font-heading);
    font-size: var(--fs-small);
    font-weight: 600;
    line-height: 1.3;
    text-align: center;
    cursor: pointer;
    transition: background-color var(--transition-base),
                border-color var(--transition-base),
                color var(--transition-base),
                transform var(--transition-base),
                box-shadow var(--transition-base);
}

.btn__icon {
    width: 18px;
    height: 18px;
    flex: none;
    fill: currentColor;
    transition: transform var(--transition-base);
}

.btn:hover {
    --btn-bg: var(--color-primary-dark);
    --btn-border: var(--color-primary-dark);
}

.btn:active {
    transform: translateY(1px);
}

.btn--lg {
    min-height: 56px;
    padding: 1rem 1.9rem;
    font-size: 1rem;
}

.btn--lg .btn__icon {
    width: 20px;
    height: 20px;
}

.btn--primary {
    box-shadow: 0 14px 30px -16px var(--color-primary-glow);
}

.btn--primary:hover {
    box-shadow: 0 18px 36px -16px var(--color-primary-glow);
}

/* Botón secundario: mismo lenguaje visual, fondo transparente */
.btn--ghost {
    --btn-bg: transparent;
    --btn-fg: var(--color-primary-deep);
    --btn-border: var(--color-border-primary);
    align-self: flex-start;
}

.btn--ghost:hover {
    --btn-bg: var(--color-primary-tint);
    --btn-fg: var(--color-primary-deep);
    --btn-border: var(--color-primary);
}

/* Estado sin número de WhatsApp configurado */
.btn.is-unconfigured {
    cursor: default;
    opacity: 0.6;
    box-shadow: none;
}

.btn.is-unconfigured:hover,
.btn.is-unconfigured:focus-visible {
    background-color: var(--btn-bg);
    border-color: var(--btn-border);
    box-shadow: none;
    transform: none;
}


/* ==========================================================================
   05. CABECERA Y NAVEGACIÓN
   ========================================================================== */

.site-header {
    position: sticky;
    top: 0;
    z-index: 100;
    /* Fondo sólido a propósito: backdrop-filter convertiría al header en
       bloque contenedor de los descendientes position:fixed y rompería el
       panel del menú móvil. */
    background-color: var(--color-surface);
    border-bottom: 1px solid transparent;
    transition: border-color var(--transition-base),
                box-shadow var(--transition-base);
}

.site-header.is-scrolled {
    border-bottom-color: var(--color-border);
    box-shadow: 0 10px 34px -28px rgba(16, 24, 36, 0.7);
}

.site-header__inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 1.5rem;
    min-height: var(--header-height);
}

.brand {
    flex: none;
    display: inline-flex;
}

.brand__logo {
    width: 152px;
    height: auto;
}

.site-nav {
    display: flex;
    align-items: center;
    gap: 2rem;
}

.site-nav__list {
    display: flex;
    align-items: center;
    gap: clamp(0.75rem, 1.6vw, 1.6rem);
}

.site-nav__list a {
    position: relative;
    display: inline-block;
    padding-block: 0.35rem;
    font-family: var(--font-heading);
    font-size: 0.9375rem;
    font-weight: 500;
    color: var(--color-text-secondary);
    transition: color var(--transition-base);
}

.site-nav__list a::after {
    content: "";
    position: absolute;
    left: 0;
    bottom: 0;
    width: 100%;
    height: 2px;
    border-radius: 2px;
    background-color: var(--color-primary);
    transform: scaleX(0);
    transform-origin: left;
    transition: transform var(--transition-base);
}

.site-nav__list a:hover,
.site-nav__list a:focus-visible {
    color: var(--color-primary-deep);
}

.site-nav__list a:hover::after,
.site-nav__list a:focus-visible::after {
    transform: scaleX(1);
}

.site-nav__cta {
    flex: none;
    min-height: 44px;
    padding: 0.65rem 1.15rem;
}

.nav-toggle {
    display: none;
    width: 46px;
    height: 46px;
    align-items: center;
    justify-content: center;
    border: 1px solid var(--color-border);
    border-radius: var(--radius-sm);
    color: var(--color-ink);
    transition: background-color var(--transition-base), border-color var(--transition-base);
}

.nav-toggle:hover {
    background-color: var(--color-primary-tint);
    border-color: var(--color-border-primary);
}

.nav-toggle__icon {
    width: 24px;
    height: 24px;
    fill: none;
    stroke: currentColor;
    stroke-width: 1.7;
    stroke-linecap: round;
    transition: opacity var(--transition-base), transform var(--transition-base);
}

.nav-toggle__icon--close {
    position: absolute;
    opacity: 0;
    transform: rotate(-45deg);
}

.nav-toggle[aria-expanded="true"] .nav-toggle__icon--open {
    opacity: 0;
    transform: rotate(45deg);
}

.nav-toggle[aria-expanded="true"] .nav-toggle__icon--close {
    opacity: 1;
    transform: rotate(0deg);
}

.nav-overlay {
    position: fixed;
    inset: var(--header-height) 0 0 0;
    z-index: 90;
    background-color: rgba(16, 24, 36, 0.45);
    opacity: 0;
    transition: opacity var(--transition-base);
}

.nav-overlay.is-visible {
    opacity: 1;
}

/* === Menú móvil === */
@media (max-width: 1023px) {
    .nav-toggle {
        display: inline-flex;
        position: relative;
        z-index: 2;
    }

    .brand {
        position: relative;
        z-index: 2;
    }

    /* Panel anclado al propio header (position:absolute) para no depender
       del bloque contenedor de position:fixed. */
    .site-nav {
        position: absolute;
        top: 100%;
        left: 0;
        right: 0;
        height: calc(100vh - var(--header-height));
        height: calc(100dvh - var(--header-height));
        z-index: 1;
        display: flex;
        flex-direction: column;
        align-items: stretch;
        justify-content: flex-start;
        gap: 0;
        padding: 1.5rem var(--container-pad) 2.5rem;
        background-color: var(--color-surface);
        overflow-y: auto;
        overscroll-behavior: contain;
        transform: translateY(-100%);
        visibility: hidden;
        transition: transform 320ms cubic-bezier(0.4, 0, 0.2, 1),
                    visibility 0s linear 320ms;
    }

    .site-nav.is-open {
        transform: translateY(0);
        visibility: visible;
        transition: transform 320ms cubic-bezier(0.4, 0, 0.2, 1),
                    visibility 0s linear 0s;
    }

    .site-nav__list {
        flex-direction: column;
        align-items: stretch;
        gap: 0;
    }

    .site-nav__list li + li {
        border-top: 1px solid var(--color-border);
    }

    .site-nav__list a {
        display: block;
        padding-block: 1rem;
        font-size: 1.0625rem;
        font-weight: 600;
        color: var(--color-ink);
    }

    .site-nav__list a::after {
        display: none;
    }

    .site-nav__cta {
        margin-top: 2rem;
        min-height: 54px;
        font-size: 1rem;
    }

    body.is-nav-open {
        overflow: hidden;
    }
}


/* ==========================================================================
   06. HERO + VSL
   ========================================================================== */

.hero {
    position: relative;
    padding-top: clamp(2.75rem, 6vw, 5rem);
    padding-bottom: clamp(3rem, 6vw, 5rem);
    overflow: hidden;
    background-color: var(--color-surface);
}

/* Retícula decorativa muy tenue, al estilo del sitio oficial */
.hero__deco {
    position: absolute;
    inset: 0 auto auto 0;
    width: min(420px, 60vw);
    aspect-ratio: 501 / 383;
    background-image:
        linear-gradient(to right, rgba(21, 13, 33, 0.07) 1px, transparent 1px),
        linear-gradient(to bottom, rgba(21, 13, 33, 0.07) 1px, transparent 1px);
    background-size: 15px 15px;
    opacity: 0.6;
    -webkit-mask-image: radial-gradient(ellipse at top left, #000 20%, transparent 72%);
    mask-image: radial-gradient(ellipse at top left, #000 20%, transparent 72%);
    pointer-events: none;
}

.hero__inner {
    position: relative;
    display: grid;
    grid-template-columns: minmax(0, 1fr);
    gap: clamp(2.5rem, 5vw, 4rem);
    align-items: center;
}

.hero__title {
    font-family: var(--font-heading);
    font-size: var(--fs-display);
    font-weight: 600;
    line-height: 1.1;
    letter-spacing: -0.03em;
    text-wrap: balance;
    color: var(--color-ink);
    max-width: 17ch;
}

.hero__lead {
    margin-top: 1.5rem;
    font-size: var(--fs-lead);
    line-height: 1.78;
    color: var(--color-text-secondary);
    max-width: 54ch;
}

.hero__actions {
    margin-top: 2.25rem;
    display: flex;
    flex-direction: column;
    align-items: flex-start;
    gap: 0.9rem;
}

.hero__note {
    font-size: var(--fs-small);
    color: var(--color-text-muted);
}

/* --- Contenedor VSL --- */
.vsl {
    position: relative;
    border-radius: var(--radius-lg);
    background-color: var(--color-ink-soft);
    box-shadow: var(--shadow-card);
    overflow: hidden;
    isolation: isolate;
}

.vsl::before {
    content: "";
    position: absolute;
    inset: 0;
    z-index: 3;
    border-radius: inherit;
    border: 1px solid rgba(74, 181, 185, 0.28);
    pointer-events: none;
}

.vsl__player {
    width: 100%;
    aspect-ratio: 16 / 9;
    background-color: #000;
    object-fit: contain;
}

.vsl__player[hidden] {
    display: none;
}

/* La agenda es HTML, no una imagen: el marco conserva la proporción 16/9
   que antes daba la captura. */
.vsl__placeholder {
    position: relative;
    display: flex;
    flex-direction: column;
    margin: 0;
    aspect-ratio: 16 / 9;
    background-color: #0C1420;
}

/* contain: la captura completa se muestra sin recortes ni deformaciones */
.vsl__image {
    width: 100%;
    aspect-ratio: 16 / 9;
    object-fit: contain;
}

.vsl__badge {
    position: absolute;
    left: 50%;
    top: 50%;
    transform: translate(-50%, -50%);
    z-index: 2;
    display: flex;
    align-items: center;
    gap: 0.85rem;
    max-width: calc(100% - 2.5rem);
    padding: 0.95rem 1.35rem;
    border-radius: var(--radius-md);
    border: 1px solid rgba(74, 181, 185, 0.35);
    background-color: rgba(16, 24, 36, 0.82);
    -webkit-backdrop-filter: blur(8px);
    backdrop-filter: blur(8px);
    text-align: left;
}

.vsl__badge-icon {
    width: 30px;
    height: 30px;
    flex: none;
    fill: none;
    stroke: var(--color-primary);
    stroke-width: 1.5;
    stroke-linecap: round;
    stroke-linejoin: round;
}

.vsl__badge-text {
    display: flex;
    flex-direction: column;
    line-height: 1.35;
}

.vsl__badge-text strong {
    font-family: var(--font-heading);
    font-size: 0.9375rem;
    font-weight: 600;
    color: #FFFFFF;
}

.vsl__badge-text span {
    font-size: var(--fs-tiny);
    color: rgba(255, 255, 255, 0.62);
}

/* --- Agenda semanal vacía --------------------------------------------------
   Rejilla de la semana construida con HTML y CSS. Solo contiene estructura:
   encabezado con los días, columna de horas y cuadrícula vacía donde se
   registran las citas durante la demostración. Sin citas, sin nombres de
   pacientes y sin horarios ocupados.

   Todas las medidas son fluidas y el bloque encaja dentro de un contenedor
   16/9, así que no se deforma, no se recorta y no genera scroll horizontal
   en móvil, tableta o escritorio.
   ------------------------------------------------------------------------- */
.agenda {
    --agenda-gutter: clamp(34px, 5vw, 56px);
    --agenda-rows: 6;

    flex: 1 1 auto;
    display: flex;
    flex-direction: column;
    min-height: 0;
    overflow: hidden;
    background-color: var(--color-surface);
    color: var(--color-ink);
    font-size: var(--fs-tiny);
}

/* Barra superior, al estilo de la aplicación */
.agenda__bar {
    flex: none;
    display: flex;
    align-items: center;
    gap: clamp(0.45rem, 1.5vw, 1rem);
    padding: clamp(0.4rem, 1vw, 0.65rem) clamp(0.6rem, 1.7vw, 1.05rem);
    background-color: var(--color-ink);
}

.agenda__brand {
    flex: none;
    display: inline-flex;
    align-items: center;
    gap: 0.4rem;
    font-family: var(--font-heading);
    font-size: clamp(0.625rem, 0.56rem + 0.22vw, 0.75rem);
    font-weight: 600;
    color: #FFFFFF;
}

.agenda__brand-mark {
    width: 13px;
    height: 13px;
    flex: none;
    border-radius: 4px;
    background-color: var(--color-primary);
}

.agenda__heading {
    font-family: var(--font-heading);
    font-size: clamp(0.75rem, 0.62rem + 0.45vw, 0.9375rem);
    font-weight: 600;
    color: #FFFFFF;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.agenda__chip {
    flex: none;
    margin-left: auto;
    padding: 0.18rem 0.6rem;
    border: 1px solid rgba(74, 181, 185, 0.4);
    border-radius: var(--radius-pill);
    background-color: rgba(74, 181, 185, 0.16);
    font-size: clamp(0.5625rem, 0.5rem + 0.2vw, 0.6875rem);
    letter-spacing: 0.02em;
    color: var(--color-primary);
    white-space: nowrap;
}

/* Encabezado con los días de la semana */
.agenda__head {
    flex: none;
    display: grid;
    grid-template-columns: var(--agenda-gutter) repeat(7, minmax(0, 1fr));
    border-bottom: 1px solid var(--color-border);
    background-color: var(--color-surface-muted);
}

.agenda__gutter {
    border-right: 1px solid var(--color-border);
}

.agenda__day {
    padding: clamp(0.28rem, 0.85vw, 0.48rem) 0.1rem;
    font-family: var(--font-heading);
    font-size: clamp(0.5625rem, 0.5rem + 0.22vw, 0.6875rem);
    font-weight: 600;
    letter-spacing: 0.05em;
    text-align: center;
    color: var(--color-text-secondary);
    white-space: nowrap;
}

.agenda__day + .agenda__day {
    border-left: 1px solid var(--color-border);
}

/* Cuerpo: columna de horas + cuadrícula vacía */
.agenda__body {
    flex: 1 1 auto;
    min-height: 0;
    display: grid;
    grid-template-columns: var(--agenda-gutter) minmax(0, 1fr);
}

.agenda__times {
    display: grid;
    grid-template-rows: repeat(var(--agenda-rows), minmax(0, 1fr));
    border-right: 1px solid var(--color-border);
    color: var(--color-text-muted);
}

.agenda__times span {
    display: flex;
    align-items: flex-start;
    justify-content: flex-end;
    padding: 1px clamp(0.25rem, 0.9vw, 0.5rem) 0 0;
    font-size: clamp(0.5rem, 0.46rem + 0.16vw, 0.625rem);
    font-variant-numeric: tabular-nums;
    line-height: 1.2;
    white-space: nowrap;
}

/* La cuadrícula se dibuja con dos gradientes repetidos: franjas horarias y
   columnas de los siete días. Sin tarjetas ni citas de ejemplo. */
.agenda__days {
    background-color: var(--color-surface-soft);
    background-image:
        repeating-linear-gradient(to bottom, var(--color-border) 0 1px, transparent 1px 100%),
        repeating-linear-gradient(to right, var(--color-border) 0 1px, transparent 1px 100%);
    background-size:
        100% calc(100% / var(--agenda-rows)),
        calc(100% / 7) 100%;
}

/* --- Franja de confianza --- */
.trust-bar {
    position: relative;
    margin-top: clamp(2.5rem, 5vw, 3.75rem);
    padding-top: 1.75rem;
    border-top: 1px solid var(--color-border);
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 0.9rem clamp(1.5rem, 4vw, 3rem);
}

.trust-bar li {
    display: flex;
    align-items: center;
    gap: 0.6rem;
    font-size: var(--fs-small);
    color: var(--color-text-secondary);
}

.trust-bar__icon {
    width: 16px;
    height: 16px;
    flex: none;
    fill: none;
    stroke: var(--color-primary);
    stroke-width: 2.2;
    stroke-linecap: round;
    stroke-linejoin: round;
}


/* ==========================================================================
   07. PROBLEMAS
   ========================================================================== */

.problems {
    display: grid;
    grid-template-columns: minmax(0, 1fr);
    gap: clamp(2.25rem, 5vw, 4rem);
    align-items: start;
}

.problems__intro {
    display: flex;
    flex-direction: column;
}

.problems__intro .section__title {
    max-width: 19ch;
}

.problems__close {
    margin-top: 1.5rem;
    font-family: var(--font-heading);
    font-size: var(--fs-lead);
    font-weight: 600;
    line-height: 1.5;
    color: var(--color-primary-deep);
    max-width: 34ch;
}

.problems__cta {
    margin-top: 1.75rem;
}

.problems__list {
    display: flex;
    flex-direction: column;
    counter-reset: problem;
}

.problem {
    display: flex;
    align-items: flex-start;
    gap: 1.15rem;
    padding-block: 1.5rem;
    border-top: 1px solid var(--color-border);
}

.problem:last-child {
    border-bottom: 1px solid var(--color-border);
}

.problem__icon {
    flex: none;
    display: grid;
    place-items: center;
    width: 46px;
    height: 46px;
    border-radius: var(--radius-sm);
    background-color: var(--color-primary-tint);
    color: var(--color-primary-deep);
    transition: background-color var(--transition-base);
}

.problem__icon svg {
    width: 23px;
    height: 23px;
    fill: none;
    stroke: currentColor;
    stroke-width: 1.6;
    stroke-linecap: round;
    stroke-linejoin: round;
}

.problem:hover .problem__icon {
    background-color: var(--color-primary-soft);
}

.problem__text {
    font-size: 1.0625rem;
    line-height: 1.65;
    color: var(--color-ink);
    text-wrap: pretty;
}


/* ==========================================================================
   08. MÓDULOS
   ========================================================================== */

.modules {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(min(100%, 27rem), 1fr));
    gap: clamp(1.5rem, 3vw, 2.25rem);
}

.module {
    display: flex;
    flex-direction: column;
    padding: clamp(1.5rem, 3vw, 2rem);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    background-color: var(--color-surface);
    transition: border-color var(--transition-base),
                box-shadow var(--transition-base),
                transform var(--transition-base);
}

.module:hover {
    border-color: var(--color-border-primary);
    box-shadow: var(--shadow-soft);
    transform: translateY(-3px);
}

.module__head {
    display: flex;
    align-items: flex-start;
    gap: 1rem;
}

.module__icon {
    flex: none;
    display: grid;
    place-items: center;
    width: 52px;
    height: 52px;
    border-radius: 14px;
    background-color: var(--color-primary);
    color: #FFFFFF;
}

.module__icon svg {
    width: 26px;
    height: 26px;
    fill: none;
    stroke: currentColor;
    stroke-width: 1.6;
    stroke-linecap: round;
    stroke-linejoin: round;
}

.module__name {
    font-family: var(--font-heading);
    font-size: var(--fs-h3);
    font-weight: 600;
    line-height: 1.3;
    letter-spacing: -0.012em;
    color: var(--color-ink);
}

.module__program {
    margin-top: 0.45rem;
    align-self: flex-start;
    display: inline-block;
    padding: 0.25rem 0.7rem;
    border: 1px solid var(--color-border-primary);
    border-radius: var(--radius-pill);
    background-color: var(--color-primary-tint);
    font-family: var(--font-heading);
    font-size: var(--fs-tiny);
    font-weight: 600;
    letter-spacing: 0.02em;
    color: var(--color-primary-deep);
}

.module__text {
    margin-top: 1.15rem;
    font-size: 1rem;
    line-height: 1.72;
    color: var(--color-text-secondary);
    text-wrap: pretty;
}

.module__benefit {
    margin-top: auto;
    padding-top: 1.25rem;
    font-family: var(--font-heading);
    font-size: 1rem;
    font-weight: 600;
    line-height: 1.5;
    color: var(--color-ink);
}
.module__benefit::before {
    content: "";
    display: block;
    width: 32px;
    height: 2px;
    margin-bottom: 0.8rem;
    border-radius: 2px;
    background-color: var(--color-primary);
}

/* Marco de la captura: fondo blanco para que el encuadre de la imagen
   se lea como espacio de respiro y no como un hueco. */
.module__media {
    margin: 1.5rem 0 0;
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    background-color: #FFFFFF;
    overflow: hidden;
    aspect-ratio: 16 / 10;
}

.module__media img {
    width: 100%;
    height: 100%;
    object-fit: contain;
}

.module__media--concept {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 0.75rem;
    padding: 1.25rem;
}

.concept {
    width: 100%;
    height: auto;
}

.concept__grid path {
    fill: none;
    stroke: var(--color-border);
    stroke-width: 1;
}

.concept__line {
    fill: none;
    stroke: var(--color-primary);
    stroke-width: 2;
    stroke-linecap: round;
}

.concept__node {
    fill: #FFFFFF;
    stroke: var(--color-primary);
    stroke-width: 2.5;
}

.concept__bar {
    fill: rgba(74, 181, 185, 0.18);
}

.concept__check path {
    fill: none;
    stroke: var(--color-primary-deep);
    stroke-width: 2.4;
    stroke-linecap: round;
    stroke-linejoin: round;
}

.module__caption {
    font-size: var(--fs-tiny);
    letter-spacing: 0.04em;
    color: var(--color-text-muted);
}


/* ==========================================================================
   09. SEGURIDAD
   ========================================================================== */

.security {
    display: grid;
    grid-template-columns: minmax(0, 1fr);
    gap: clamp(2.5rem, 5vw, 4.5rem);
    align-items: center;
}

.security__copy .section__title {
    max-width: 20ch;
}

.security__points {
    margin-top: 2.25rem;
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(min(100%, 14rem), 1fr));
    gap: 1rem 1.5rem;
}

.security__points li {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    font-size: var(--fs-small);
    font-weight: 500;
    color: var(--color-ink);
}

.security__point-icon {
    flex: none;
    display: grid;
    place-items: center;
    width: 38px;
    height: 38px;
    border-radius: 10px;
    background-color: var(--color-primary-tint);
    color: var(--color-primary-deep);
}

.security__point-icon svg {
    width: 20px;
    height: 20px;
    fill: none;
    stroke: currentColor;
    stroke-width: 1.6;
    stroke-linecap: round;
    stroke-linejoin: round;
}

.security__visual {
    position: relative;
    display: grid;
    place-items: center;
    aspect-ratio: 1;
    max-width: 420px;
    margin-inline: auto;
    width: 100%;
}

.security__ring {
    position: absolute;
    inset: 0;
    border: 1px solid var(--color-border-primary);
    border-radius: 50%;
}

.security__ring--2 {
    inset: 14%;
    border-style: dashed;
    opacity: 0.65;
}

.security__shield {
    position: relative;
    display: grid;
    place-items: center;
    width: 46%;
    aspect-ratio: 1;
    border-radius: 50%;
    background: radial-gradient(circle at 50% 35%,
                    rgba(74, 181, 185, 0.18) 0%,
                    rgba(74, 181, 185, 0.06) 60%,
                    rgba(74, 181, 185, 0) 100%);
}

.security__shield svg {
    width: 58%;
    height: 58%;
    fill: none;
    stroke: var(--color-primary);
    stroke-width: 1.4;
    stroke-linecap: round;
    stroke-linejoin: round;
}


/* ==========================================================================
   10. TESTIMONIOS
   ========================================================================== */

.testimonials {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(min(100%, 18rem), 1fr));
    gap: clamp(1.25rem, 2.5vw, 1.75rem);
}

.testimonial {
    border-radius: var(--radius-lg);
    background-color: var(--color-surface);
}

/* Estado vacío: la sección mantiene el diseño de marca hasta que
   Redxus entregue testimonios autorizados. */
.testimonial--empty {
    display: flex;
    flex-direction: column;
    align-items: flex-start;
    gap: 1rem;
    min-height: 230px;
    padding: clamp(1.5rem, 3vw, 2rem);
    border: 1px dashed var(--color-border-primary);
    background-color: var(--color-surface);
}

.testimonial__quote-mark {
    display: grid;
    place-items: center;
    width: 46px;
    height: 46px;
    border-radius: 50%;
    background-color: var(--color-primary-tint);
}

.testimonial__quote-mark svg {
    width: 22px;
    height: 22px;
    fill: var(--color-primary);
}

.testimonial__empty-text {
    margin-top: auto;
    font-family: var(--font-heading);
    font-size: 1.0625rem;
    font-weight: 600;
    line-height: 1.45;
    color: var(--color-ink);
}

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

.testimonials__stat {
    margin-top: 2rem;
    text-align: center;
    font-family: var(--font-heading);
    font-size: var(--fs-lead);
    font-weight: 600;
    color: var(--color-ink);
}

/* Testimonio real (estructura documentada en index.html) */
.testimonial__body {
    display: flex;
    flex-direction: column;
    height: 100%;
    margin: 0;
    padding: clamp(1.5rem, 3vw, 2rem);
    border: 1px solid var(--color-border);
    background-color: var(--color-surface);
}

.testimonial__photo {
    width: 64px;
    height: 64px;
    border-radius: 50%;
    object-fit: cover;
    margin-bottom: 1.25rem;
}

.testimonial__quote p {
    font-size: 1.0625rem;
    line-height: 1.7;
    color: var(--color-ink);
    text-wrap: pretty;
}

.testimonial__author {
    margin-top: auto;
    padding-top: 1.25rem;
    display: flex;
    flex-direction: column;
}

.testimonial__name {
    font-family: var(--font-heading);
    font-weight: 600;
    color: var(--color-ink);
}

.testimonial__clinic {
    font-size: var(--fs-small);
    color: var(--color-text-muted);
}


/* ==========================================================================
   11. PASOS Y OFERTA
   ========================================================================== */

.steps {
    position: relative;
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(min(100%, 17rem), 1fr));
    gap: clamp(1.75rem, 4vw, 2.5rem);
    counter-reset: step;
}

/* Línea de conexión en escritorio */
.steps::before {
    content: "";
    position: absolute;
    top: 27px;
    left: 8%;
    right: 8%;
    height: 1px;
    background-image: linear-gradient(to right,
        var(--color-border-primary) 55%,
        transparent 0%);
    background-size: 10px 1px;
}

.step {
    position: relative;
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
    gap: 1.1rem;
}

.step__marker {
    display: grid;
    place-items: center;
    width: 56px;
    height: 56px;
    border-radius: 50%;
    border: 1px solid var(--color-border-primary);
    background-color: var(--color-surface);
    font-family: var(--font-heading);
    font-size: 1.25rem;
    font-weight: 600;
    color: var(--color-primary-deep);
}

.step:first-child .step__marker {
    background-color: var(--color-primary);
    border-color: var(--color-primary);
    color: #FFFFFF;
}

.step__text {
    font-size: 1.0625rem;
    line-height: 1.65;
    color: var(--color-ink);
    text-wrap: pretty;
    max-width: 32ch;
}

.offer {
    margin-top: clamp(2.5rem, 5vw, 3.75rem);
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 1.5rem;
    text-align: center;
}

.offer__title {
    font-family: var(--font-heading);
    font-size: var(--fs-h3);
    font-weight: 600;
    line-height: 1.4;
    color: var(--color-ink);
}


/* ==========================================================================
   12. PREGUNTAS FRECUENTES
   ========================================================================== */

.faq {
    max-width: 860px;
}

.accordion {
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
}

.accordion__item {
    border: 1px solid var(--color-border);
    border-radius: var(--radius-sm);
    background-color: var(--color-surface);
    overflow: hidden;
    transition: border-color var(--transition-base), background-color var(--transition-base);
}

.accordion__item:hover {
    border-color: var(--color-border-primary);
}

.accordion__item.is-open {
    background-color: var(--color-primary-tint);
    border-color: var(--color-border-primary);
}

.accordion__heading {
    font-size: inherit;
    font-weight: inherit;
}

.accordion__trigger {
    width: 100%;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 1.25rem;
    padding: 1.15rem 1.35rem;
    text-align: left;
    font-family: var(--font-heading);
    font-size: 1.0625rem;
    font-weight: 600;
    line-height: 1.45;
    color: var(--color-ink);
    transition: color var(--transition-base);
}

.accordion__trigger:hover {
    color: var(--color-primary-deep);
}

.accordion__icon {
    flex: none;
    width: 20px;
    height: 20px;
    fill: none;
    stroke: var(--color-primary);
    stroke-width: 2;
    stroke-linecap: round;
    stroke-linejoin: round;
    transition: transform var(--transition-base);
}

.accordion__item.is-open .accordion__icon {
    transform: rotate(180deg);
}

/* Sin JavaScript todas las respuestas permanecen visibles y legibles.
   El acordeón solo se activa cuando JS añade la clase "is-collapsible". */
.accordion__panel {
    height: auto;
}

.accordion.is-collapsible .accordion__panel {
    height: 0;
    overflow: hidden;
    visibility: hidden;
    transition: height var(--transition-base),
                visibility 0s linear var(--transition-base);
}

.accordion.is-collapsible .accordion__panel.is-open {
    visibility: visible;
    transition: height var(--transition-base),
                visibility 0s linear 0s;
}

.accordion__content {
    padding: 0 1.35rem 1.25rem;
    font-size: 1rem;
    line-height: 1.75;
    color: var(--color-text-secondary);
    max-width: 72ch;
}


/* ==========================================================================
   13. CIERRE
   ========================================================================== */

.closing {
    position: relative;
    overflow: hidden;
    padding: clamp(3rem, 7vw, 5.5rem) clamp(1.5rem, 5vw, 4rem);
    border-radius: var(--radius-lg);
    background-color: var(--color-ink);
    background-image:
        radial-gradient(125% 95% at 50% -12%, rgba(74, 181, 185, 0.32) 0%, rgba(74, 181, 185, 0) 62%),
        radial-gradient(70% 62% at 10% 108%, rgba(74, 181, 185, 0.18) 0%, rgba(74, 181, 185, 0) 70%),
        radial-gradient(70% 62% at 90% 108%, rgba(74, 181, 185, 0.18) 0%, rgba(74, 181, 185, 0) 70%);
    text-align: center;
    box-shadow: inset 0 0 0 1px rgba(74, 181, 185, 0.22);
}

.closing::after {
    content: "";
    position: absolute;
    left: 50%;
    bottom: 0;
    width: min(760px, 120%);
    aspect-ratio: 1290 / 420;
    transform: translate(-50%, 62%);
    border-radius: 50%;
    background: radial-gradient(closest-side, rgba(74, 181, 185, 0.18), rgba(74, 181, 185, 0));
    pointer-events: none;
}

.closing__title {
    position: relative;
    font-family: var(--font-heading);
    font-size: var(--fs-h2);
    font-weight: 600;
    line-height: 1.16;
    letter-spacing: -0.022em;
    text-wrap: balance;
    color: #FFFFFF;
    max-width: 22ch;
    margin-inline: auto;
}

.closing__text {
    position: relative;
    margin: 1.35rem auto 0;
    font-size: var(--fs-lead);
    line-height: 1.75;
    color: rgba(255, 255, 255, 0.72);
    max-width: 52ch;
}

.closing__btn {
    position: relative;
    margin-top: 2.25rem;
}


/* ==========================================================================
   14. PIE DE PÁGINA
   ========================================================================== */

.site-footer {
    background-color: var(--color-surface);
    padding-top: clamp(3rem, 6vw, 4.5rem);
    border-top: 1px solid var(--color-border);
}

.site-footer__inner {
    display: grid;
    grid-template-columns: minmax(0, 1fr);
    gap: 2.5rem;
    padding-bottom: 3rem;
}

.site-footer__logo {
    width: 168px;
    height: auto;
}

.site-footer__tagline {
    margin-top: 1.1rem;
    font-size: var(--fs-small);
    color: var(--color-text-secondary);
    max-width: 26ch;
}

.social {
    margin-top: 1.5rem;
    display: flex;
    gap: 0.75rem;
}

.social__link {
    display: grid;
    place-items: center;
    width: 44px;
    height: 44px;
    border: 1px solid var(--color-border-primary);
    border-radius: 50%;
    background-color: var(--color-primary);
    transition: background-color var(--transition-base),
                transform var(--transition-base),
                border-color var(--transition-base);
}

.social__link img {
    width: 20px;
    height: 20px;
    filter: brightness(0) invert(1);
}

.social__link:hover {
    background-color: var(--color-primary-dark);
    transform: translateY(-2px);
}

.site-footer__heading {
    font-family: var(--font-heading);
    font-size: 1.0625rem;
    font-weight: 600;
    color: var(--color-ink);
}

.site-footer__list {
    margin-top: 1.1rem;
    display: flex;
    flex-direction: column;
    gap: 0.65rem;
}

.site-footer__list a {
    font-size: var(--fs-small);
    color: var(--color-text-secondary);
    transition: color var(--transition-base);
}

.site-footer__list a:hover,
.site-footer__list a:focus-visible {
    color: var(--color-primary-deep);
}

.site-footer__list--contact a {
    display: inline-flex;
    align-items: center;
    gap: 0.6rem;
}

.site-footer__icon {
    width: 18px;
    height: 18px;
    flex: none;
    fill: none;
    stroke: var(--color-primary);
    stroke-width: 1.6;
    stroke-linecap: round;
    stroke-linejoin: round;
}

.site-footer__list--contact li:last-child .site-footer__icon {
    fill: currentColor;
    stroke: none;
}

.site-footer__bar {
    border-top: 1px solid var(--color-border);
}

.site-footer__bar-inner {
    min-height: 72px;
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    justify-content: space-between;
    gap: 0.75rem 1.5rem;
    padding-block: 1.25rem;
}

.site-footer__copy {
    font-size: var(--fs-tiny);
    color: var(--color-text-muted);
}

.site-footer__copy strong {
    color: var(--color-ink);
    font-weight: 600;
}

.site-footer__legal {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 0.5rem 1.25rem;
}

.site-footer__legal a {
    font-size: var(--fs-tiny);
    color: var(--color-text-muted);
    transition: color var(--transition-base);
}

.site-footer__legal a:hover,
.site-footer__legal a:focus-visible {
    color: var(--color-primary-deep);
}

.to-top {
    position: fixed;
    right: clamp(1rem, 3vw, 2rem);
    bottom: clamp(1rem, 3vw, 2rem);
    z-index: 80;
    display: grid;
    place-items: center;
    width: 48px;
    height: 48px;
    border-radius: 50%;
    background-color: var(--color-primary);
    color: #FFFFFF;
    box-shadow: 0 14px 30px -14px var(--color-primary-glow);
    opacity: 0;
    visibility: hidden;
    transform: translateY(10px);
    transition: opacity var(--transition-base),
                visibility var(--transition-base),
                transform var(--transition-base),
                background-color var(--transition-base);
}

.to-top.is-visible {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.to-top:hover {
    background-color: var(--color-primary-dark);
}

.to-top svg {
    width: 22px;
    height: 22px;
    fill: none;
    stroke: currentColor;
    stroke-width: 1.9;
    stroke-linecap: round;
    stroke-linejoin: round;
}


/* ==========================================================================
   15. ANIMACIONES DE ENTRADA
   Solo se activan si JavaScript añade la clase "js-reveal" en <html>.
   Sin JavaScript el contenido permanece totalmente visible.
   ========================================================================== */

.js-reveal [data-reveal] {
    opacity: 0;
    transform: translateY(20px);
}

.js-reveal [data-reveal].is-visible {
    opacity: 1;
    transform: none;
    transition: opacity 620ms cubic-bezier(0.22, 1, 0.36, 1),
                transform 620ms cubic-bezier(0.22, 1, 0.36, 1);
}


/* ==========================================================================
   16. ACCESIBILIDAD
   ========================================================================== */

.skip-link {
    position: absolute;
    top: 0;
    left: 50%;
    transform: translate(-50%, -140%);
    z-index: 200;
    padding: 0.85rem 1.4rem;
    border-radius: 0 0 var(--radius-sm) var(--radius-sm);
    background-color: var(--color-primary);
    color: #FFFFFF;
    font-family: var(--font-heading);
    font-size: var(--fs-small);
    font-weight: 600;
    transition: transform var(--transition-base);
}

.skip-link:focus {
    transform: translate(-50%, 0);
}

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

/* --- Reducción de movimiento --- */
@media (prefers-reduced-motion: reduce) {
    *,
    *::before,
    *::after {
        animation-duration: 0.001ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.001ms !important;
        scroll-behavior: auto !important;
    }

    .js-reveal [data-reveal] {
        opacity: 1;
        transform: none;
    }

    .to-top {
        transition: opacity 0.001ms;
    }
}


/* ==========================================================================
   17. RESPONSIVE
   ========================================================================== */

/* --- Escritorio amplio --- */
@media (min-width: 1100px) {
    .hero__inner {
        grid-template-columns: minmax(0, 0.95fr) minmax(0, 1.05fr);
    }

    .hero__title {
        max-width: 15ch;
    }

    .problems {
        grid-template-columns: minmax(0, 0.85fr) minmax(0, 1.15fr);
    }

    .security {
        grid-template-columns: minmax(0, 1.25fr) minmax(0, 0.75fr);
    }

    .site-footer__inner {
        grid-template-columns: minmax(0, 1.4fr) minmax(0, 1fr) minmax(0, 1fr);
        gap: 3rem;
    }
}

/* --- Portátiles y tabletas --- */
@media (max-width: 1099px) {
    .security__visual {
        max-width: 340px;
    }
}

/* --- Tabletas --- */
@media (max-width: 860px) {
    .steps::before {
        display: none;
    }

    .problem {
        padding-block: 1.35rem;
    }
}

/* --- Móviles --- */
@media (max-width: 640px) {
    :root {
        --header-height: 66px;
    }

    .brand__logo {
        width: 128px;
    }

    .section__head {
        text-align: left;
    }

    .section__head .eyebrow {
        text-align: left;
    }

    .section__head .eyebrow::after {
        margin-inline: 0;
    }

    .hero__actions {
        width: 100%;
        align-items: stretch;
    }

    .hero__actions .btn {
        width: 100%;
    }

    /* La retícula decorativa se retira en pantallas estrechas */
    .hero__deco {
        display: none;
    }

    /* La etiqueta del VSL pasa a barra inferior para no tapar la imagen */
    .vsl__badge {
        top: auto;
        bottom: 0.7rem;
        left: 0.7rem;
        right: 0.7rem;
        transform: none;
        max-width: none;
        justify-content: center;
        padding: 0.6rem 0.9rem;
    }

    .vsl__badge-icon {
        width: 24px;
        height: 24px;
    }

    .vsl__badge-text strong {
        font-size: 0.875rem;
    }

    .vsl__badge-text span {
        font-size: 0.75rem;
    }

    .hero__note {
        text-align: center;
    }

    .trust-bar {
        flex-direction: column;
        align-items: flex-start;
        gap: 0.7rem;
    }

    .problems__intro .section__title,
    .security__copy .section__title {
        max-width: none;
    }

    .btn--ghost {
        align-self: stretch;
    }

    .problems__cta {
        width: 100%;
    }

    .module__head {
        flex-direction: column;
        gap: 0.85rem;
    }

    .security__points {
        grid-template-columns: minmax(0, 1fr);
    }

    .accordion__trigger {
        padding: 1rem 1.1rem;
        font-size: 1rem;
    }

    .accordion__content {
        padding: 0 1.1rem 1.15rem;
    }

    .step__marker {
        width: 50px;
        height: 50px;
        font-size: 1.125rem;
    }

    .site-footer__bar-inner {
        flex-direction: column;
        align-items: flex-start;
    }

    .to-top {
        width: 44px;
        height: 44px;
    }
}

/* --- Móviles pequeños --- */
@media (max-width: 380px) {
    .brand__logo {
        width: 116px;
    }

    .nav-toggle {
        width: 42px;
        height: 42px;
    }

    .btn--lg {
        min-height: 52px;
        padding: 0.9rem 1.25rem;
        font-size: 0.9375rem;
    }

    .testimonial--empty {
        min-height: 0;
    }

    /* En pantallas muy estrechas se retiran el módulo y la etiqueta de la
       barra de la agenda, para que el título no se corte ni se solape. */
    .agenda__brand,
    .agenda__chip {
        display: none;
    }
}


/* ==========================================================================
   FIN
   ========================================================================== */